Grouting device for foundation treatment

Abstract

According to the grouting device for foundation treatment, centering operation of a grouting pipeline in a vertical or transverse hole and a pipeline can be achieved, the stability of grout accumulation is improved through centering pouring in the grouting operation of a deep and thick pile foundation, and supporting operation in a reinforcement cage can be achieved through a pulley structure of the grouting device so that blocking can be avoided.

Description

Technical Field

[0001] The invention relates to the field of construction, and more particularly to a grouting device for foundation treatment. Background Art

[0002] With the rapid development of modern industry, many applications have been implemented in the field of construction in combination with existing scientific and technological technologies. For example: CN114738553A, a pipeline centering positioning construction method and a centering positioning device, the present invention relates to the technical field of pipeline construction in buildings, and in particular to a pipeline centering positioning construction method and a centering positioning device. The pipeline is centered using a standardized centering sleeve, wherein the outer diameter of the standardized centering sleeve is formulated according to the inner diameter standard of the embedded sleeve, and the inner diameter is standardized according to the outer diameter of the pipeline. The centering sleeve of the relevant size is mass-produced according to the commonly used embedded sleeve and pipeline combination in the construction process, or the centering sleeve is personalized according to the needs of the project. The centering sleeve of the present invention includes a sleeve wall, an airbag and a positioning column, the airbag is wrapped on the outside of the sleeve wall, and the positioning column is arranged on the inside of the sleeve wall. The present invention can greatly improve the accuracy of the centering of the sleeve pipeline, save a lot of labor, reduce the probability of rework, reduce construction costs, and can be dismantled and reused after the construction is completed. When the pipeline is installed through the sleeve, it is not necessary to repeatedly process the sleeve to ensure the centering quality, and the entire construction process is convenient and easy to operate. The structure described in the invention can only be fixed at the pipe mouth, has poor compatibility and low adaptability, and cannot guarantee the operation of the hose.

[0003] For example: CN115076468A, a pipe centering device, the present application provides a pipe centering device, which includes a plurality of centering clamping structures which are sequentially attached to the outer wall of the pipe along the circumferential direction of the outer wall of the pipe, the centering clamping structure includes an integrally formed fan-shaped positioning plate and a clamping bent plate, the fan-shaped positioning plate is installed on one end of the clamping bent plate, the clamping bent plate is attached to the outer wall of the pipe, and can be inserted or pulled out of the gap between the pipe and the wall, and is used to adjust the center of the pipe installed on the wall. The device is easy to disassemble and assemble, can be used repeatedly, and can be used for centering of pipes of different diameters. The structure described in the invention can only be fixed at the pipe mouth, has poor compatibility, low adaptability, and cannot be guaranteed for hose operation. Summary of the invention

[0004] The purpose of the present invention is to provide a grouting device for foundation treatment, which can realize the grouting pipe to operate in the center of the vertical or horizontal hole or pipe, and improve the stability of slurry accumulation by central pouring in the deep pile foundation grouting operation. Its pulley structure can realize the support operation in the steel cage to avoid jamming.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A grouting device for foundation treatment is characterized by comprising a grouting pipe set and a grouting hole wall support assembly, wherein the grouting pipe set is connected to the grouting hole wall support assembly.

[0007] As a further optimization of the technical solution, the present invention provides a grouting device for foundation treatment, wherein the grouting pipe kit includes a grouting pipe, a pipe fixing bracket A, a pipe fixing bracket B, a fastener A, a pipe fixing bracket C, a pipe fixing bracket D, a fastener B, a front fixed cover plate, a waterproof ring A, a waterproof pad, a mud guard ring, and a fastener C, wherein the pipe fixing bracket A, the pipe fixing bracket B, the pipe fixing bracket C, the pipe fixing bracket D, the front fixed cover plate, and the waterproof ring A are all fixedly connected to the grouting pipe, the pipe fixing bracket A is fixedly connected to the pipe fixing bracket B through the fastener A, the pipe fixing bracket C is fixedly connected to the pipe fixing bracket D through the fastener B, the waterproof ring A is fixedly connected to the mud guard ring through the waterproof pad, and the mud guard ring is fixedly connected to the front fixed cover plate through the fastener C.

[0008] As a further optimization of the technical solution, the present invention provides a grouting device for foundation treatment,The grouting hole wall support assembly includes an upper fixing ring, an internal connecting plate A, an internal connecting plate B, an internal connecting plate C, a middle fixing ring, an internal connecting plate D, an internal connecting plate E, an internal connecting plate F, a lower fixing ring, an anti-collision frame A, an anti-collision frame B, a spring bracket A, a spring A, a pipe fixing frame A, a spring shaft A, a shaft bracket A, a connecting rod A, a rubber wheel A, a connecting rod B, a slider A, a spring shaft B, a shaft bracket B, a connecting rod C, a rubber wheel B, a connecting rod D, a slider B, a spring bracket B, a spring B, a pipe fixing frame B, a spring shaft C, a shaft bracket C, a connecting rod E, a rubber wheel C, a connecting rod F, a slider C, a spring shaft D, a shaft bracket D, a connecting rod G, a rubber wheel D, a connecting rod H, a slider D, a spring bracket C, a spring C, a pipe fixing frame C, a spring shaft E, a shaft bracket E, a connecting rod Rod I, rubber wheel E, connecting rod J, slider E, spring shaft F, shaft bracket F, connecting rod K, rubber wheel F, connecting rod L, slider F, waterproof cover plate A, waterproof cover plate B, waterproof cover plate C, waterproof cover plate D, waterproof cover plate E, waterproof cover plate F, wherein the upper fixing ring is fixedly connected to the middle fixing ring through internal connecting plate A, internal connecting plate B, and internal connecting plate C, the middle fixing ring is fixedly connected to the lower fixing ring through internal connecting plate D, internal connecting plate E, and internal connecting plate F, the upper fixing ring is fixedly connected to the lower fixing ring through anti-collision frame A and anti-collision frame B, the spring bracket A, spring bracket B, and spring bracket C are all fixedly connected to the upper fixing ring, the spring bracket A is fixedly connected to the pipe fixing frame A through spring A, and the spring shaft A is fixedly connected to the spring bracket A and the shaft bracket A Connect, shaft bracket A, rubber wheel A, connecting rod B are all rotatably connected to connecting rod A, connecting rod B is rotatably connected to slider A, slider A is fixedly connected to spring shaft A, shaft bracket A, shaft bracket C, shaft bracket E are all fixedly connected to the middle fixed ring, spring shaft B is fixedly connected to shaft bracket A and shaft bracket B, shaft bracket B, rubber wheel B, connecting rod D are all rotatably connected to connecting rod C, slider B is fixedly connected to spring shaft B, shaft bracket B, shaft bracket D, shaft bracket F are all fixedly connected to the lower fixed ring, spring shaft C is fixedly connected to spring bracket B and shaft bracket C, shaft bracket C, rubber wheel C, connecting rod F are all rotatably connected to connecting rod E, connecting rod F is rotatably connected to slider C, slider C is fixedly connected to spring shaft C, spring shaft D is fixedly connected to shaft bracket C and shaft bracket D, shaft bracket D , rubber wheel D, connecting rod H are all rotatably connected with connecting rod G, connecting rod H is rotatably connected with slider D, slider D is fixedly connected with spring shaft D, spring bracket C, shaft bracket E are all fixedly connected with spring shaft E, shaft bracket E, rubber wheel E, connecting rod J are all rotatably connected with connecting rod I, connecting rod J is rotatably connected with slider E, slider E is fixedly connected with spring shaft E, spring shaft F is fixedly connected with shaft bracket E and shaft bracket F, shaft bracket F, rubber wheel F, connecting rod L are all rotatably connected with connecting rod K, connecting rod L is rotatably connected with slider F, slider F is fixedly connected with spring shaft F, waterproof cover plate A, waterproof cover plate C, waterproof cover plate E are all fixedly connected with upper fixed ring and middle fixed ring, waterproof cover plate B, waterproof cover plate D, waterproof cover plate F are all fixedly connected with middle fixed ring and lower fixed ring. ,

[0009] The beneficial effects of the grouting device for foundation treatment of the present invention are:

[0010] The grouting device for foundation treatment of the present invention has the following beneficial effects: 1. It can realize the centering operation of the grouting pipe in a vertical or horizontal hole or pipe; 2. In the grouting operation of deep pile foundation, the stability of slurry accumulation is improved by centering pouring, and its pulley structure can realize the support operation in the steel cage to avoid jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0012] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0013] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0014] Figure 3 The grouting pipe kit structure of the present invention is shown in FIG. Figure 1 ;

[0015] Figure 4 The grouting pipe kit structure of the present invention is shown in FIG. Figure 2 ;

[0016] Figure 5 This is a schematic diagram of the grouting hole wall support assembly structure of the present invention. Figure 1 ;

[0017] Figure 6 This is a schematic diagram of the grouting hole wall support assembly structure of the present invention. Figure 2 ;

[0018] Figure 7 This is a schematic diagram of the grouting hole wall support assembly structure of the present invention. Figure 3 ;

[0019] Figure 8 This is a schematic diagram of the structure of the device of the present invention being constructed in a hole pipe. Figure 1 ;

[0020] In the figure: grouting pipe set 1; grouting pipe 101; pipe fixing bracket A102; pipe fixing bracket B103; fastener A104; pipe fixing bracket C105; pipe fixing bracket D106; fastener B107; front fixing cover plate 108; waterproof ring A109; waterproof pad 110; mud guard ring 111; fastener C112; grouting hole wall support assembly 2; upper fixing ring 201; internal connecting plate A202; internal connecting plate B203; internal Upper connecting plate C204; middle fixing ring 205; inner connecting plate D206; inner connecting plate E207; inner connecting plate F208; lower fixing ring 209; anti-collision frame A210; anti-collision frame B211; spring bracket A212; spring A213; pipe fixing frame A214; spring shaft A215; shaft bracket A216; connecting rod A217; rubber wheel A218; connecting rod B219; slider A220; spring shaft B221; shaft bracket B222; Connecting rod C223; rubber wheel B224; connecting rod D225; slider B226; spring bracket B227; spring B228; pipe fixing bracket B229; spring shaft C230; shaft bracket C231; connecting rod E232; rubber wheel C233; connecting rod F234; slider C235; spring shaft D236; shaft bracket D237; connecting rod G238; rubber wheel D239; connecting rod H240; slider D241; spring bracket C242; spring C 243; pipe fixing frame C244; spring shaft E245; shaft bracket E246; connecting rod I247; rubber wheel E248; connecting rod J249; slider E250; spring shaft F251; shaft bracket F252; connecting rod K253; rubber wheel F254; connecting rod L255; slider F256; waterproof cover plate A257; waterproof cover plate B258; waterproof cover plate C259; waterproof cover plate D260; waterproof cover plate E261; waterproof cover plate F262. Specific embodiments

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings. Specific embodiment one:

[0023] Combine the following Figure 1-8 To describe this embodiment, a grouting device for foundation treatment includes a grouting pipe kit 1 and a grouting hole wall support assembly 2, wherein the grouting pipe kit 1 is connected to the grouting hole wall support assembly 2. Specific embodiment 2:

[0025] Combine the following Figure 1-8This embodiment further describes the first embodiment. The grouting pipe kit 1 includes a grouting pipe 101, a pipe fixing bracket A102, a pipe fixing bracket B103, a fastener A104, a pipe fixing bracket C105, a pipe fixing bracket D106, a fastener B107, a front fixed cover plate 108, a waterproof ring A109, a waterproof pad 110, a mud guard ring 111, and a fastener C112. The pipe fixing bracket A102, the pipe fixing bracket B103, and the pipe fixing bracket C105, pipe fixing bracket D106, front fixing cover plate 108 and waterproof ring A109 are all fixedly connected to the grouting pipe 101, pipe fixing bracket A102 is fixedly connected to pipe fixing bracket B103 via fastener A104, pipe fixing bracket C105 is fixedly connected to pipe fixing bracket D106 via fastener B107, waterproof ring A109 is fixedly connected to mud guard ring 111 via waterproof pad 110, and mud guard ring 111 is fixedly connected to the front fixing cover plate 108 via fastener C112. Specific embodiment three:

[0027] Combine the following Figure 1-8Description of this embodiment, this embodiment further describes Example 1, the grouting hole wall support assembly 2 includes an upper fixing ring 201, an internal connecting plate A202, an internal connecting plate B203, an internal connecting plate C204, a middle fixing ring 205, an internal connecting plate D206, an internal connecting plate E207, an internal connecting plate F208, a lower fixing ring 209, an anti-collision frame A210, an anti-collision frame B211, a spring bracket A212, a spring A213, a pipe fixing frame A214, a spring shaft A215, an axle bracket A216, a connecting rod A217, a rubber wheel A218, a connecting rod B219, a slider A220, a spring shaft B221, an axle bracket B222, a connecting rod C223, a rubber wheel B224, a connecting rod D 225, slider B226, spring bracket B227, spring B228, pipe fixing frame B229, spring shaft C230, shaft bracket C231, connecting rod E232, rubber wheel C233, connecting rod F234, slider C235, spring shaft D236, shaft bracket D237, connecting rod G238, rubber wheel D239, connecting rod H240, slider D241, spring bracket C242, spring C243, pipe fixing frame C244, spring shaft E245, shaft bracket E246, connecting rod I247, rubber wheel E248, connecting rod J249, slider E250, spring shaft F251, shaft bracket F252, connecting rod K253, rubber wheel F254, connecting rod L255, slider F256, anti Water cover plate A257, waterproof cover plate B258, waterproof cover plate C259, waterproof cover plate D260, waterproof cover plate E261, waterproof cover plate F262, wherein the upper fixing ring 201 is fixedly connected to the middle fixing ring 205 through the internal connecting plate A202, the internal connecting plate B203, and the internal connecting plate C204, the middle fixing ring 205 is fixedly connected to the lower fixing ring 209 through the internal connecting plate D206, the internal connecting plate E207, and the internal connecting plate F208, the upper fixing ring 201 is fixedly connected to the lower fixing ring 209 through the anti-collision frame A210 and the anti-collision frame B211, the spring bracket A212, the spring bracket B227, and the spring bracket C242 are all fixedly connected to the upper fixing ring 201, and the spring bracket A21 2 is fixedly connected to the pipe fixing frame A214 through the spring A213, the spring shaft A215 is fixedly connected to the spring bracket A212 and the shaft bracket A216, the shaft bracket A216, the rubber wheel A218 and the connecting rod B219 are all rotatably connected to the connecting rod A217, the connecting rod B219 is rotatably connected to the slider A220, the slider A220 is fixedly connected to the spring shaft A215, the shaft bracket A216, the shaft bracket C231 and the shaft bracket E246 are all fixedly connected to the middle fixing ring 205, the spring shaft B221 is fixedly connected to the shaft bracket A216 and the shaft bracket B222, the shaft bracket B222, the rubber wheel B224 and the connecting rod D225 are all rotatably connected to the connecting rod C223, the slider B226 is fixedly connected to the spring shaft B221,The shaft support B222, shaft support D237, and shaft support F252 are all fixedly connected to the lower fixing ring 209, the spring shaft C230 is fixedly connected to the spring support B227 and shaft support C231, the shaft support C231, the rubber wheel C233, and the connecting rod F234 are all rotatably connected to the connecting rod E232, the connecting rod F234 is rotatably connected to the slider C235, the slider C235 is fixedly connected to the spring shaft C230, the spring shaft D236 is fixedly connected to the shaft support C231 and shaft support D237, the shaft support D237, the rubber wheel D239, and the connecting rod H240 are all rotatably connected to the connecting rod G238, the connecting rod H240 is rotatably connected to the slider D241, the slider D241 is fixedly connected to the spring shaft D236, the spring support C242 and shaft support E246 are all fixedly connected to the spring shaft E245, The shaft bracket E246, rubber wheel E248, and connecting rod J249 are all rotatably connected to the connecting rod I247, the connecting rod J249 is rotatably connected to the slider E250, the slider E250 is fixedly connected to the spring shaft E245, the spring shaft F251 is fixedly connected to the shaft bracket E246 and the shaft bracket F252, the shaft bracket F252, the rubber wheel F254, and the connecting rod L255 are all rotatably connected to the connecting rod K253, the connecting rod L255 is rotatably connected to the slider F256, the slider F256 is fixedly connected to the spring shaft F251, the waterproof cover plate A257, the waterproof cover plate C259, and the waterproof cover plate E261 are all fixedly connected to the upper fixed ring 201 and the middle fixed ring 205, and the waterproof cover plate B258, the waterproof cover plate D260, and the waterproof cover plate F262 are all fixedly connected to the middle fixed ring 205 and the lower fixed ring 209.

[0028] The grouting device for foundation treatment of the present invention has the following working principle: the pipe fixing bracket A102 and the pipe fixing bracket B103 are fastened to the front end of the grouting pipe 101 by means of the fastener A104, the pipe fixing bracket C105 and the pipe fixing bracket D106 are fixed to the lower ends of the pipe fixing bracket A102 and the pipe fixing bracket B103 by means of the fastener B107, as a precondition for connecting the grouting hole wall support component 2, the front fixed cover plate 108 is fixed just above the grouting outlet of the grouting pipe 101, and then the waterproof ring A109 is placed inside the front fixed cover plate 108 and fixed, the waterproof pad 110 is filled and then fixedly installed by the mud guard ring 111, and one end of the mud guard ring 111 is fixed to the front fixed cover plate 108 by the fastener C112 The grouting pipe 101 is fixed to make the slurry outlet airtight to prevent the slurry from leaking into the grouting hole wall support component 2. Then the upper fixing ring 201 and the middle fixing ring 205 in the grouting hole wall support component 2 are connected and fixed with the pipe fixing bracket A102 and the pipe fixing bracket B103, and the middle fixing ring 205 and the lower fixing ring 209 are fixed with the pipe fixing bracket C105 and the pipe fixing bracket D106. At this time, the two components begin to be preliminarily connected, and the anti-collision frame A210 and the anti-collision frame B211 are fixedly installed with the upper fixing ring 201 and the lower fixing ring 209 to enhance the stability of the overall structure. According to the structural connection relationship described in the specific embodiment above, after the remaining parts are installed to the corresponding positions, the spring bracket A212 and the spring bracket are connected. The bracket B227 and the spring bracket C242 elastically fix the grouting pipe 101. When the conventional, high-pressure jet grouting pipe is poured in a pile hole of great depth, in the second half of the pouring, the grouting pipe is spirally penetrated into the pile hole due to the material of the grouting pipe. In the existing pouring technology, the grouting pipe can always be kept within the working range of the steel cage due to the protection of the steel cage, and will not bend, knot or misaligned. However, this method can only be applied to this type of operation and has a relatively single function. The grouting device provided by the device aims to always keep the front end of the grouting pipe centered and lowered into the pile hole, thereby reducing the resistance to its lowering during deep pouring. Both disposable grouting pipes and repetitive grouting pipes can be used, and the placement position of the device in the grouting pipe can be adjusted according to actual conditions. The position can be freely selected. When the grouting pipe extends downward, it is squeezed by the protective pipe in the pile hole or the inner wall of the steel cage. The rubber wheels A218, B224, C233, D239, E248 and F254 are squeezed synchronously and rotate along the hole wall or the inner wall of the steel cage as the grouting pipe is lowered. Among them, the structures of the spring shaft A215, B221, C230, D236, E245 and F251 are all fixed with a column spring at both ends of a fixed shaft. The slider is installed in the middle position of the two groups of springs on the fixed shaft, and forms an elastic relationship with the two groups of springs respectively. One is to meet the conditions of the rubber wheel shrinking inward and expanding outward, and the other is to limit the maximum outward expansion position of the rubber wheel A218.When rubber wheel A218 is squeezed, connecting rod A217 and connecting rod B219 push slider A220 to slide upward along spring shaft A215. When rubber wheel B224 is squeezed, connecting rod C223 and connecting rod D225 push slider B226 to slide upward along spring shaft B221. When rubber wheel C233 is squeezed, connecting rod E232 and connecting rod F234 push slider C235 to slide upward along spring shaft C230. When rubber wheel D239 is squeezed, The slider D241 is pushed upward along the spring shaft D236 by the connecting rod G238 and the connecting rod H240. When the rubber wheel E248 is squeezed, the slider E250 is pushed upward along the spring shaft E245 by the connecting rod I247 and the connecting rod J249. When the rubber wheel F254 is squeezed, the slider F256 is pushed upward along the spring shaft F251 by the connecting rod K253 and the connecting rod L255. At this time, the grouting pipe extending downward is supported and the resistance is reduced.

[0029] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the protection scope of the present invention.

Claims

1. A grouting device for foundation treatment, characterized in that: It comprises a grouting pipe set (1) and a grouting hole wall support assembly (2), wherein the grouting pipe set (1) is connected to the grouting hole wall support assembly (2).

2. A grouting device for foundation treatment according to claim 1, characterized in that: The grouting pipe kit (1) comprises a grouting pipe (101), a pipe fixing bracket A (102), a pipe fixing bracket B (103), a fastener A (104), a pipe fixing bracket C (105), a pipe fixing bracket D (106), a fastener B (107), a front fixing cover plate (108), a waterproof ring A (109), a waterproof pad (110), a mud guard ring (111), and a fastener C (112), wherein the pipe fixing bracket A (102), the pipe fixing bracket B (103), the pipe fixing bracket C (105), the pipe fixing bracket D (106), the fastener B (107), a front fixing cover plate (108), a waterproof ring A (109), a waterproof pad (110), a mud guard ring (111), and a fastener C (112). The pipe fixing bracket (106), the front fixed cover plate (108), and the waterproof ring A (109) are all fixedly connected to the grouting pipe (101); the pipe fixing bracket A (102) is fixedly connected to the pipe fixing bracket B (103) via a fastener A (104); the pipe fixing bracket C (105) is fixedly connected to the pipe fixing bracket D (106) via a fastener B (107); the waterproof ring A (109) is fixedly connected to the mud guard ring (111) via a waterproof pad (110); and the mud guard ring (111) is fixedly connected to the front fixed cover plate (108) via a fastener C (112).

3. A grouting device for foundation treatment according to claim 1, characterized in that: The grouting hole wall support assembly (2) comprises an upper fixing ring (201), an internal connecting plate A (202), an internal connecting plate B (203), an internal connecting plate C (204), a middle fixing ring (205), an internal connecting plate D (206), an internal connecting plate E (207), an internal connecting plate F (208), a lower fixing ring (209), an anti-collision frame A (210), an anti-collision frame B (211), a spring support A (212), a spring A (213), a pipe fixing frame A (214), a spring shaft A (215), a shaft support A (216), a connecting rod A (217), a rubber wheel A (218), a connecting rod B (219), a sliding block A (220), a spring shaft B (221), a shaft support B (222), a connecting rod C (223), rubber wheel B (224), connecting rod D (225), slider B (226), spring bracket B (227), spring B (228), pipe fixing frame B (229), spring shaft C (230), shaft bracket C (231), connecting rod E (232), rubber wheel C (233), connecting rod F (234), slider C (235), spring shaft D (236), shaft bracket D (237), connecting rod G (238), rubber wheel D (239), connecting rod H (240), slider D (241), spring bracket C (242), spring C (243), pipe fixing frame C (244), spring shaft E (245), shaft bracket E (246), connecting rod I (247), rubber wheel E (248) , connecting rod J (249), slider E (250), spring shaft F (251), shaft bracket F (252), connecting rod K (253), rubber wheel F (254), connecting rod L (255), slider F (256), waterproof cover plate A (257), waterproof cover plate B (258), waterproof cover plate C (259), waterproof cover plate D (260), waterproof cover plate E (261), waterproof cover plate F (262), wherein the upper fixing ring (201) is fixedly connected to the middle fixing ring (205) through the internal connecting plate A (202), the internal connecting plate B (203), and the internal connecting plate C (204), and the middle fixing ring (205) is connected to the middle fixing ring (205) through the internal connecting plate D (206), the internal connecting plate E (207), and the internal connecting plate F ( The upper fixing ring (201) is fixedly connected to the lower fixing ring (209) through an anti-collision frame A (210) and an anti-collision frame B (211). The spring bracket A (212), the spring bracket B (227) and the spring bracket C (242) are all fixedly connected to the upper fixing ring (201). The spring bracket A (212) is fixedly connected to the pipe fixing bracket A (214) through a spring A (213). The spring shaft A (215) is fixedly connected to the spring bracket A (212) and the shaft bracket A (216). The shaft bracket A (216), the rubber wheel A (218) and the connecting rod B (219) are all rotatably connected to the connecting rod A (217). The connecting rod B (219) is rotatably connected to the slider A (220).The slider A (220) is fixedly connected to the spring shaft A (215); the shaft bracket A (216), the shaft bracket C (231), and the shaft bracket E (246) are all fixedly connected to the middle fixed ring (205); the spring shaft B (221) is fixedly connected to the shaft bracket A (216) and the shaft bracket B (222); the shaft bracket B (222), the rubber wheel B (224), and the connecting rod D (225) are all rotatably connected to the connecting rod C (223); the slider B (226) is fixedly connected to the spring shaft B (221); the shaft bracket B (222), the shaft bracket D (237), and the shaft bracket F (252) are all connected to the lower fixed ring (2 09) is fixedly connected, the spring shaft C (230) is fixedly connected to the spring bracket B (227) and the shaft bracket C (231), the shaft bracket C (231), the rubber wheel C (233), and the connecting rod F (234) are all rotatably connected to the connecting rod E (232), the connecting rod F (234) is rotatably connected to the slider C (235), the slider C (235) is fixedly connected to the spring shaft C (230), the spring shaft D (236) is fixedly connected to the shaft bracket C (231) and the shaft bracket D (237), the shaft bracket D (237), the rubber wheel D (239), and the connecting rod H (240) are all rotatably connected to the connecting rod G (238) The connecting rod H (240) is rotatably connected to the slider D (241), the slider D (241) is fixedly connected to the spring shaft D (236), the spring bracket C (242) and the shaft bracket E (246) are fixedly connected to the spring shaft E (245), the shaft bracket E (246), the rubber wheel E (248), and the connecting rod J (249) are rotatably connected to the connecting rod I (247), the connecting rod J (249) is rotatably connected to the slider E (250), the slider E (250) is fixedly connected to the spring shaft E (245), and the spring shaft F (251) is fixedly connected to the shaft bracket E (246) and the shaft bracket F (252) The shaft support F (252), the rubber wheel F (254), and the connecting rod L (255) are all rotatably connected to the connecting rod K (253), the connecting rod L (255) is rotatably connected to the slider F (256), the slider F (256) is fixedly connected to the spring shaft F (251), the waterproof cover plate A (257), the waterproof cover plate C (259), and the waterproof cover plate E (261) are all fixedly connected to the upper fixing ring (201) and the middle fixing ring (205), and the waterproof cover plate B (258), the waterproof cover plate D (260), and the waterproof cover plate F (262) are all fixedly connected to the middle fixing ring (205) and the lower fixing ring (209).

Images