Earth excavation foundation pit protection device with space adjusting function

Abstract

The earth excavation foundation pit protection device with the distance adjusting function comprises a foundation pit body, stand columns are symmetrically installed in the foundation pit body, and a soil retaining plate is installed on one side of each stand column; supporting mechanisms are symmetrically arranged between the stand columns, and fixing mechanisms are arranged in the supporting mechanisms. The supporting mechanism comprises supporting rods symmetrically installed between the stand columns, supporting sleeves are symmetrically and slidably connected to the outer sides of the two ends of each supporting rod, inserting grooves are symmetrically formed in the two sides of each supporting rod, limiting frames are symmetrically installed at the corresponding ends of the supporting sleeves, and limiting boxes are installed at the top ends of the limiting frames. Therefore, the effect of rapidly adjusting and fixing the supporting rods can be achieved, rapid adjustment can be achieved according to the distance between the stand columns, compared with the mode that multiple sets of fixing pieces are adopted in the prior art, more convenience is achieved, and the installation efficiency of the foundation pit body protection structure is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit protection, in particular to an earth excavation foundation pit protection device with a spacing adjustment function. Background Art

[0002] When excavating earth, it is necessary to dig a foundation pit and then protect the foundation pit. At present, a continuous horizontal retaining support device can be used for loose and wet soil. The retaining board is a temporary retaining structure to prevent the collapse of trenches and foundation pits. It is generally composed of support plates and cross braces. Steel, wood, and bamboo are often used in construction projects to ensure the personal safety of construction workers.

[0003] Publication No. CN213709558U discloses a continuous horizontal retaining plate support structure. The device uses a wooden support structure, and a plurality of corresponding slots are respectively opened on the surface of the support rod and the support tube. When connecting, the distance between the two is adjusted, and the first mounting protrusion and the second mounting protrusion are respectively inserted into the corresponding placement slots. Since the size of the first mounting protrusion and the second mounting protrusion is slightly larger than the size of the slot, it can ensure that the two are tightly connected without loosening, and it is easy to disassemble, thereby solving the problem of heavy support structure and thread slippage. However, the patent still has the following problems in actual use:

[0004] The device uses a wooden support structure, opens a number of corresponding slots on the surface of the support rod and the support tube, adjusts the distance between the two, and fixes them with fixings. However, when the device connects the receiving tube and the cross bar, it is necessary to use multiple fixings to limit the position, and it is not convenient to disassemble and adjust after installation, which brings inconvenience to the staff when using it.

[0005] A protective device for earth excavation pit with a spacing adjustment function is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide an earthwork excavation pit protection device with a spacing adjustment function, so as to solve the problem proposed in the above-mentioned background technology that a wooden support structure is currently used, a corresponding number of slots are opened on the surface of the support rod and the support tube respectively, the distance between the two is adjusted, and they are fixed with fixing parts, but when the device connects the receiving tube and the cross bar, multiple fixing parts are required to limit the position, and it is not convenient to disassemble and adjust after installation, which brings inconvenience to the staff when using it.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a protective device for earthwork excavation pit with spacing adjustment function, comprising a pit body, wherein columns are symmetrically installed inside the pit body, and retaining plates are installed on one side of the columns; support mechanisms are symmetrically arranged between the columns, and a fixing mechanism is arranged inside the support mechanism;

[0008] In which, the supporting mechanism includes a supporting rod symmetrically installed between the columns, and supporting sleeves are symmetrically slidably connected to the outer sides of both ends of the supporting rod, and slots are symmetrically opened on both sides of the supporting rod, and a limiting frame is symmetrically installed at the corresponding end of the supporting sleeve, and a limiting box is installed at the top of the limiting frame, and a screw is rotatably connected to the inside of one end of the limiting box, and an extrusion block is threadedly connected to the outer side of the screw, and an extrusion rod is slidably connected between the limit box and the limit frame, and a tooth plate is fixedly connected to one end of the extrusion rod, and a first contraction rod is symmetrically installed between the tooth plate and the limit box, and a first telescopic spring is sleeved on the outer side of the first contraction rod, and one side of the tooth plate is clamped and fixedly connected with the slot.

[0009] Preferably, the fixing mechanism includes an installation box symmetrically installed inside the column, and one end of the support sleeve is fixedly connected to a fixing block, and a mounting seat is installed inside the installation box, and one end of the fixing block is snap-connected to the mounting seat, and an extrusion plate is symmetrically rotatably connected to one side of the interior of the installation box, and one end of the extrusion plate is fixedly connected to a limiting tooth, and the limiting tooth is snap-fixedly connected to the fixing block, and rotating rods are symmetrically rotatably connected between both ends of the mounting seat and the extrusion plate.

[0010] Preferably, a second retractable rod is symmetrically installed between the mounting seat and the inside of the mounting box, and a second telescopic spring is sleeved on the outer side of the second retractable rod.

[0011] Preferably, a multi-stage telescopic rod is installed between the inside of the support sleeve and the support rod, and a third telescopic spring is sleeved on the outer side of the multi-stage telescopic rod.

[0012] Preferably, a torsion spring is provided at the connection between the extrusion plate and the installation box.

[0013] Preferably, one end of the fixing block passes through the installation box with a clearance fit.

[0014] Preferably, the extrusion block is located inside the limit box and is slidably connected thereto.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the earthwork excavation foundation pit protection device with spacing adjustment function is specifically as follows: by moving the outer support sleeves at both ends of the support rod outward, and driving the extrusion block to slide inside the limit box by rotating the screw, at this time the extrusion block squeezes the extrusion rod, and at this time the extrusion rod drives the tooth plate to slide inside the limit frame, thereby making the tooth plate and the slot engage and fix, so that the effect of quickly adjusting the fixed support rod can be achieved, and the effect of quickly adjusting according to the distance between the columns can be achieved. Compared with the method of using multiple sets of fixing parts in the prior art, it is more convenient and greatly improves the installation efficiency of the foundation pit body protection structure. When the gap between the fixed block and the mounting box is matched, the mounting seat is moved inside the mounting box. At this time, the mounting seat pulls the rotation of the extrusion plate through the rotating rod, thereby making the limit tooth and the fixed block engage and fix, thereby achieving the effect of automatically fixing the limit fixed block during the adjustment of the support mechanism, thereby greatly improving the installation efficiency of the device, and compared with the method of limiting only by gap matching in the prior art, it is more stable.

[0016] 1. By placing the support rod and the support sleeve between the columns, the outer support sleeves at both ends of the support rod are moved outward according to the distance between the columns. At this time, the gap between the fixed block and the installation box is matched, and then the extrusion block is driven to slide inside the limit box by rotating the screw. At this time, the extrusion block squeezes the extrusion rod, and then drives the tooth plate to slide inside the limit frame through the extrusion rod. At this time, the first retractable rod and the first telescopic spring are stretched, so that the tooth plate and the slot are engaged and fixed, so that the effect of quickly adjusting the fixed support rod can be achieved, and the effect of quickly adjusting according to the distance between the columns can be achieved. Compared with the method of using multiple sets of fixing parts in the prior art, it is more convenient and greatly improves the installation efficiency of the foundation pit body protection structure;

[0017] When the fixing block is fitted with the mounting box, one end of the fixing block is engaged with the mounting seat, so that the mounting seat can be moved inside the mounting box. At this time, the mounting seat pulls the rotation of the extrusion plate through the rotating rod, so that the limiting tooth and the fixing block are engaged and fixed, thereby achieving the effect of automatically fixing the limiting fixing block during the adjustment of the supporting mechanism, thereby greatly improving the installation efficiency of the device, and is more stable than the prior art method of limiting only by gap fitting, which brings convenience to the staff during use. When the support sleeve drives the fixing block away from the mounting box, the second retractable rod and the second telescopic spring are reset, thereby promoting the movement of the mounting seat, thereby achieving the effect of quickly pulling out the auxiliary fixing block, which brings convenience to the staff when removing the support sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2This is a schematic diagram of the overall structure of the support mechanism in the utility model;

[0020] Figure 3 It is a partial enlarged structural schematic diagram of the support mechanism in the utility model;

[0021] Figure 4 This is a schematic diagram of the enlarged structure of the partial operation of the support mechanism in the utility model;

[0022] Figure 5 This is a schematic diagram of the overall structure of the fixing mechanism in the utility model;

[0023] Figure 6 It is a schematic diagram of the overall operation structure of the fixing mechanism in the utility model.

[0024] In the figure: 1. foundation pit body; 101. column; 102. retaining plate; 2. supporting mechanism; 201. supporting rod; 202. supporting sleeve; 203. slot; 204. limiting frame; 205. limiting box; 206. screw; 207. extrusion block; 208. extrusion rod; 209. tooth plate; 210. first retractable rod; 211. first telescopic spring; 212. multi-stage telescopic rod; 213. third telescopic spring; 3. fixing mechanism; 301. mounting box; 302. fixing block; 303. mounting seat; 304. extrusion plate; 305. limiting tooth; 306. rotating rod; 307. second retractable rod; 308. second telescopic spring; 309. torsion spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 The utility model provides a technical solution: a protective device for earthwork excavation pit with a spacing adjustment function, comprising a pit body 1, columns 101 are symmetrically installed inside the pit body 1, and retaining plates 102 are installed on one side of the columns 101; support mechanisms 2 are symmetrically arranged between the columns 101, and a fixing mechanism 3 is arranged inside the support mechanism 2;

[0027] The support mechanism 2 includes a support rod 201 symmetrically installed between the columns 101, and the outer sides of the two ends of the support rod 201 are symmetrically slidably connected with support sleeves 202, and slots 203 are symmetrically opened on both sides of the support rod 201, and a limit frame 204 is symmetrically installed at one end of the support sleeve 202, and a limit box 205 is installed at the top of the limit frame 204, and one end of the limit box 205 is internally rotatably connected with a screw 206, and the outer thread of the screw 206 The extrusion block 207 is connected, and the extrusion block 207 is slidably connected inside the limit box 205, and an extrusion rod 208 is slidably connected between the limit box 205 and the limit frame 204, and one end of the extrusion rod 208 is fixedly connected to a tooth plate 209, and a first contraction rod 210 is symmetrically installed between the tooth plate 209 and the limit box 205, and the outer side of the first contraction rod 210 is sleeved with a first telescopic spring 211, and one side of the tooth plate 209 is fixedly connected to the slot 203. The invention relates to a method for quickly adjusting the fixed support rod 201 and the effect of quickly adjusting the distance between the columns 101. Compared with the method of using multiple sets of fixing parts in the prior art, it is more convenient and greatly improves the installation efficiency of the protective structure of the foundation pit body 1. Through the contractility of the first telescopic spring 211, when the extrusion block 207 no longer squeezes the extrusion rod 208, the tooth plate 209 can be quickly reset to the inside of the limit frame 204, which is convenient for the subsequent secondary fixation of the support rod 201. A multi-stage telescopic rod 212 is installed between the inside of the support sleeve 202 and the support rod 201, and the outer side of the multi-stage telescopic rod 212 is sleeved with a third telescopic spring 213. Through the design of the multi-stage telescopic rod 212 and the third telescopic spring 213, when the support rod 201 is limited, the support rod 201 can be quickly retracted into the support sleeve 202, thereby greatly reducing the space occupied by the device and bringing convenience to the staff when transporting the support rod 201 and the support sleeve 202.

[0028] The fixing mechanism 3 includes an installation box 301 symmetrically installed inside the column 101, and one end of the support sleeve 202 is fixedly connected to a fixing block 302, one end of the fixing block 302 passes through the installation box 301 with a clearance fit, and a mounting seat 303 is installed inside the installation box 301, and one end of the fixing block 302 is snap-fitted to the mounting seat 303, and one side of the interior of the installation box 301 is symmetrically rotatably connected to an extrusion plate 304, and one end of the extrusion plate 304 is fixedly connected to a limiting tooth 305, and the limiting tooth 305 is snap-fitted to the fixing block 302, and the two ends of the mounting seat 303 are symmetrically rotatably connected to the extrusion plate 304. Rotating rods 306 are symmetrically rotatably connected, thereby achieving the effect of automatically fixing the limiting fixing block 302 during the adjustment of the support mechanism 2, thereby greatly improving the installation efficiency of the device, and compared with the prior art which only uses The clearance matching limiting method is more stable, which brings convenience to the staff when using it. A second retractable rod 307 is symmetrically installed between the mounting seat 303 and the inside of the mounting box 301, and a second telescopic spring 308 is sleeved on the outer side of the second retractable rod 307. The second retractable rod 307 and the second telescopic spring 308 are reset to push the movement of the mounting seat 303, thereby achieving the effect of auxiliary fixed block 302 being quickly pulled out, which brings convenience to the staff when disassembling the support sleeve 202. A torsion spring 309 is provided at the connection between the extrusion plate 304 and the mounting box 301. Through the design of the torsion spring 309, when the fixed block 302 is pulled out, the torsion spring 309 drives the extrusion plate 304 to rotate outward and reset, thereby assisting the limiting tooth 305 to be pulled out of the fixed block 302, which brings practicality to the staff when using it.

[0029] Working principle: Before using this earthwork excavation pit protection device with spacing adjustment function, it is necessary to first check the overall condition of the device to ensure that it can work normally. Figure 1 - Figure 6As shown, by placing the support rod 201 and the support sleeve 202 between the columns 101, the outer support sleeves 202 at both ends of the support rod 201 are moved outward according to the distance between the columns 101. At this time, the gap between the fixing block 302 and the installation box 301 is matched, and then the extrusion block 207 is driven to slide inside the limit box 205 by rotating the screw 206. At this time, the extrusion block 207 squeezes the extrusion rod 208, and then drives the tooth plate 209 to slide inside the limit frame 204 through the extrusion rod 208. At this time, the first retractable rod 210 and the first telescopic spring 211 are extended, so that the tooth plate 209 is engaged and fixed with the slot 203, so that the effect of quickly adjusting the fixed support rod 201 can be achieved, and it can be adjusted according to the column The effect of quickly adjusting the distance between the support rods 201 and 101 is more convenient than the method of using multiple sets of fixing parts in the prior art, which greatly improves the installation efficiency of the protective structure of the foundation pit body 1. Through the contractility of the first telescopic spring 211, when the extrusion block 207 no longer squeezes the extrusion rod 208, the tooth plate 209 can be quickly reset to the inside of the limit frame 204, which is convenient for the subsequent secondary fixation of the support rod 201. Through the design of the multi-stage telescopic rod 212 and the third telescopic spring 213, when the support rod 201 is limited, the support rod 201 can be quickly retracted into the support sleeve 202, thereby greatly reducing the space occupied by the device, which brings convenience to the staff when transporting the support rod 201 and the support sleeve 202;

[0030] When the fixing block 302 and the mounting box 301 are clearance-matched, one end of the fixing block 302 is snap-connected with the mounting seat 303, so that the mounting seat 303 moves inside the mounting box 301. At this time, the mounting seat 303 pulls the extrusion plate 304 to rotate through the rotating rod 306, so that the limiting teeth 305 are snap-connected and fixed with the fixing block 302, so that the effect of automatically fixing the limiting fixing block 302 during the adjustment of the support mechanism 2 can be achieved, thereby greatly improving the installation efficiency of the device, and compared with the prior art method of limiting only by clearance matching, it is more stable and provides convenience for the staff when using it. It brings convenience. When the support sleeve 202 drives the fixed block 302 away from the installation box 301, the second retractable rod 307 and the second telescopic spring 308 are reset, and then the movement of the mounting seat 303 can be promoted, so as to achieve the effect of assisting the fixed block 302 to be quickly pulled out, which brings convenience to the staff when disassembling the support sleeve 202. Through the design of the torsion spring 309, when the fixed block 302 is pulled out, the torsion spring 309 drives the extrusion plate 304 to rotate outward and reset, so as to assist the limiting tooth 305 to be pulled out from the fixed block 302, which brings practicality to the staff when in use.

[0031] The foundation pit body 1, the columns 101 and the retaining plate 102 are in the prior art, and publication number CN213709558U discloses a continuous horizontal retaining plate support structure, and the devices used therein are not described in detail here.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A protective device for an earthwork excavation pit with a spacing adjustment function, comprising a pit body (1), wherein upright posts (101) are symmetrically installed inside the pit body (1), and retaining plates (102) are installed on one side of the upright posts (101); It is characterized in that Also includes: Support mechanisms (2) are symmetrically arranged between the uprights (101), and a fixing mechanism (3) is arranged inside the support mechanism (2); The support mechanism (2) comprises a support rod (201) symmetrically installed between the columns (101), and the two ends of the support rod (201) are symmetrically slidably connected to the outer sides with support sleeves (202), and slots (203) are symmetrically opened on both sides of the support rod (201), and a limit frame (204) is symmetrically installed at the corresponding end of the support sleeve (202), and a limit box (205) is installed at the top of the limit frame (204), and one end of the limit box (205) is rotatably connected to the inside with a screw (206), and The outer side of the screw rod (206) is threadedly connected to an extrusion block (207), and an extrusion rod (208) is slidably connected between the limit box (205) and the limit frame (204), and one end of the extrusion rod (208) is fixedly connected to a tooth plate (209), and a first retractable rod (210) is symmetrically installed between the tooth plate (209) and the limit box (205), and a first telescopic spring (211) is sleeved on the outer side of the first retractable rod (210), and one side of the tooth plate (209) is fixedly connected to the slot (203) by snap-fitting.

2. The earthwork excavation pit protection device with spacing adjustment function according to claim 1 is characterized in that: The fixing mechanism (3) comprises a mounting box (301) symmetrically mounted inside the column (101), one end of the support sleeve (202) is fixedly connected to a fixing block (302), a mounting seat (303) is mounted inside the mounting box (301), one end of the fixing block (302) is snap-fitted and connected to the mounting seat (303), one side of the interior of the mounting box (301) is symmetrically rotatably connected to an extrusion plate (304), one end of the extrusion plate (304) is fixedly connected to a limiting tooth (305), the limiting tooth (305) is snap-fitted and fixedly connected to the fixing block (302), and rotating rods (306) are symmetrically rotatably connected between the two ends of the mounting seat (303) and the extrusion plate (304).

3. The earthwork excavation pit protection device with spacing adjustment function according to claim 2 is characterized in that: A second retractable rod (307) is symmetrically installed between the mounting seat (303) and the inside of the mounting box (301), and a second telescopic spring (308) is sleeved on the outer side of the second retractable rod (307).

4. The earthwork excavation pit protection device with spacing adjustment function according to claim 1 is characterized in that: A multi-stage telescopic rod (212) is installed between the interior of the support sleeve (202) and the support rod (201), and a third telescopic spring (213) is sleeved on the outer side of the multi-stage telescopic rod (212).

5. The earthwork excavation pit protection device with spacing adjustment function according to claim 2 is characterized in that: A torsion spring (309) is provided at the connection between the extrusion plate (304) and the installation box (301).

6. The earthwork excavation pit protection device with spacing adjustment function according to claim 2 is characterized in that: One end of the fixing block (302) penetrates through the installation box (301) with clearance fit.

7. The earthwork excavation pit protection device with spacing adjustment function according to claim 1 is characterized in that: The extrusion block (207) is located inside the limiting box (205) and is slidably connected thereto.

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