在门球活动中常遇到这样的问题,由于向界外闪击球时,球经常与场边的挡球矮墙相撞,致使球易破损,挡球矮墙及其水泥边也常常被打坏。为解决这一问题,我们在修建门球场时,在四周矮墙内下脚留出深10厘米、高20厘米的内空,并在其上、下预装铁丝钩,打球时将一条20厘米宽的尼龙绳 In croquet activities often encounter such a problem, due to blink the ball to the outside world, the ball often with the ball blocking the court side of the low wall collisions, resulting in the ball easily damaged, retaining the ball and its concrete wall is also often broken . In order to solve this problem, when building the gateball court, we set foot inside the low wall within four weeks to create a hollow 10 cm deep and 20 cm high. A wire hook was preloaded on the top and bottom of the gate. A 20 cm wide Nylon rope