A municipal engineering foundation pit safety protection device

Abstract

The utility model provides a municipal engineering foundation pit safety protection device, which relates to the technical field of engineering foundation pit protection equipment, including two groups of support rods, the surfaces of the support rods are installed with hinged seats, two groups of connecting rods are fixedly connected between the two groups of support rods, and a protection rod is fixedly connected between the upper and lower groups of connecting rods. An adjustment rod is arranged at the bottom end of the support rod, and a roller is installed at the bottom end of the adjustment rod. A fixed shell is installed outside the bottom end of the support rod, and an insertion rod is arranged inside the fixed shell. The utility model rotates the shaft in opposite directions to the screw rod, so that when the screw at the bottom end of the shaft drives the adjustment rod to extend outward from the inside of the support rod, the screw rod drives the insertion rod to retract into the fixed shell, and the two do not interfere with each other. Therefore, when the device is moved, it can be conveniently moved and transported by the roller, and when the device is fixedly installed, the insertion rod can be inserted into the soil near the pit mouth of the foundation pit, thereby improving the stability of the device installation.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering foundation pit protection equipment, in particular to a municipal engineering foundation pit safety protection device. Background Art

[0002] During the excavation of municipal engineering foundation pits, in order to prevent pedestrians from falling into the pits and causing injuries, it is necessary to install safety protection devices around the pits to enhance warning and protection effects.

[0003] After the general safety protection device is installed, the bottom structure is not stable enough and is easy to tilt after being hit by external force. Secondly, it is mainly moved by manpower, which consumes a lot of labor and affects its actual use.

[0004] Therefore, there is an urgent need for a municipal engineering foundation pit safety protection device that can solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and solve the problem that after the safety protection device proposed in the above background technology is installed, the bottom structure is not stable enough and is easy to tilt after being hit by external force. Secondly, it is mainly moved by manpower, which consumes a lot of labor and affects actual use.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a municipal engineering foundation pit safety protection device, comprising two groups of support rods, the surfaces of the support rods are installed with hinge seats, two groups of connecting rods are fixedly connected between the two groups of support rods, and a protection rod is fixedly connected between the upper and lower groups of connecting rods, an adjusting rod is arranged at the bottom end of the support rod, a roller is arranged at the bottom end of the adjusting rod, a fixed shell is arranged outside the bottom end of the support rod, a plug rod is arranged inside the fixed shell, a rotating shaft is rotatably arranged inside the support rod, the bottom end of the rotating shaft is threadedly connected with the inner part of the adjusting rod, a driving gear is fixed on the surface of the rotating shaft, a screw is rotatably arranged inside the fixed shell, the bottom end of the screw is threadedly connected with the inner part of the plug rod, a driven gear is fixed on the surface of the screw, the outer side of the driven gear is meshed with the outer side of the driving gear, and a linkage assembly is arranged between the top ends of the two groups of rotating shafts.

[0007] Preferably, a slot is formed on one side of the support rod close to the interior of the fixed shell, and the outer sides of the driving gear and the driven gear are both arranged in the slot.

[0008] Preferably, two groups of limit blocks are installed on the surface of the adjustment rod, and a limit groove is provided on the bottom side of the inner wall of the support rod, and the limit block is slidably disposed in the limit groove.

[0009] Preferably, a guide rod is fixed to the inner wall of the fixed shell, a sliding block is fixedly connected to the surface of the insertion rod, and the guide rod is inserted into the inner circular hole of the sliding block on the surface of the insertion rod.

[0010] Preferably, the linkage assembly includes a rotating rod rotatably arranged on the surface of the upper connecting rod, a rotating handwheel is fixed to the top of the rotating rod, two sets of sprocket one are fixed to the inside of the upper connecting rod, sprocket two are fixed to the top of the two sets of rotating shafts, and chains are connected between the two sets of sprocket two and one set of sprocket one respectively.

[0011] Preferably, a circular protrusion is installed on the surface of the rotating hand wheel.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are: by rotating the shaft in opposite directions to the screw, the thread at the bottom end of the shaft drives the adjusting rod to extend outward from the inside of the support rod, while the screw drives the insertion rod to retract into the fixed shell, and the two do not interfere with each other. Therefore, when the device is moved, it can be conveniently moved and transported by rollers, and when the device is fixed and installed, the insertion rod can be inserted into the soil near the pit mouth, thereby improving the stability of the device installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the three-dimensional structure of a device provided according to an embodiment of the utility model is shown;

[0014] Figure 2 A schematic diagram of the planar structure of a device provided according to an embodiment of the utility model is shown;

[0015] Figure 3 The utility model provides a Figure 2 A schematic diagram of the enlarged structure in the middle.

[0016] Legend:

[0017] 1. Support rod; 101. Articulated seat; 102. Connecting rod; 103. Protective rod; 2. Adjusting rod; 201. Roller; 3. Fixed shell; 301. Inserting rod; 302. Guide rod; 4. Rotating shaft; 401. Driving gear; 402. Screw rod; 403. Driven gear; 5. Rotating rod; 501. Rotating hand wheel; 502. Sprocket one; 503. Sprocket two; 504. Chain. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0020] like Figures 1 to 3 As shown, in the embodiment of the utility model: a municipal engineering foundation pit safety protection device comprises two groups of support rods 1, a hinge seat 101 is installed on the surface of the support rod 1, two groups of connecting rods 102 are fixedly connected between the two groups of support rods 1, a protection rod 103 is fixedly connected between the upper and lower groups of connecting rods 102, an adjusting rod 2 is arranged at the bottom end of the support rod 1, a roller 201 is installed at the bottom end of the adjusting rod 2, a fixed shell 3 is installed outside the bottom end of the support rod 1, an insert rod 301 is arranged inside the fixed shell 3, a rotating shaft 4 is rotatably arranged inside the support rod 1, the bottom end of the rotating shaft 4 is threadedly connected with the inside of the adjusting rod 2, a driving gear 401 is fixed on the surface of the rotating shaft 4, a screw 402 is rotatably arranged inside the fixed shell 3, the bottom end of the screw 402 is threadedly connected with the inside of the insert rod 301, a driven gear 403 is fixed on the surface of the screw 402, the outer side of the driven gear 403 is meshed with the outer side of the driving gear 401, and a linkage component is arranged between the top ends of the two groups of rotating shafts 4.

[0021] A slot is formed on one side of the support rod 1 close to the interior of the fixed housing 3 , and the outer sides of the driving gear 401 and the driven gear 403 are both disposed in the slot.

[0022] Two sets of limit blocks are installed on the surface of the adjustment rod 2, and a limit groove is provided on the bottom side of the inner wall of the support rod 1, and the limit blocks are slidably arranged in the limit groove.

[0023] A guide rod 302 is fixed to the inner wall of the fixed shell 3 , a slider is fixedly connected to the surface of the insertion rod 301 , and the guide rod 302 is inserted into the inner circular hole of the slider on the surface of the insertion rod 301 .

[0024] The linkage assembly includes a rotating rod 5 rotatably arranged on the surface of the upper connecting rod 102, a rotating hand wheel 501 is fixed to the top of the rotating rod 5, two sets of sprocket one 502 are fixed inside the upper connecting rod 102 of the rotating rod 5, sprocket two 503 are fixed to the top of the two sets of rotating shafts 4, and chains 504 are connected between the two sets of sprocket two 503 and one set of sprocket one 502 respectively.

[0025] A circular protrusion is installed on the surface of the rotating hand wheel 501 to increase the friction resistance when the rotating hand wheel 501 is rotated.

[0026] In summary, the working principle of the utility model is as follows: after the hand wheel 501 is rotated clockwise by hand, the rotating rod 5 can drive the two sets of sprockets 1 502 to rotate synchronously, and then the two sets of sprockets 1 502 drive the sprocket 2 503 to rotate clockwise through the chain 504, so that the rotating hand wheel 501 can drive the rotating shaft 4 to rotate spirally, and then the adjusting rod 2 is driven by the threaded part at the bottom of the rotating shaft 4 to move, extending from the inside of the support rod 1 and supported at the bottom, and then driven to move by the roller 201 when moving, making the moving position more convenient , and then drive the rotating shaft 4 to rotate counterclockwise, and the rotating shaft 4 drives the driving gear 401 to rotate counterclockwise, and the driven gear 403 meshing with the driving gear 401 will be driven to rotate clockwise, and then the driving gear 401 drives the screw rod 402 to rotate clockwise, so that the screw rod 402 can drive the insertion rod 301 to extend from the inside of the fixed shell 3, and at the same time, the threaded part at the bottom of the rotating shaft 4 will drive the adjusting rod 2 to be retracted into the inside of the supporting rod 1 counterclockwise, and then the fixed shell 3 is inserted into the soil and fixed, thereby improving the stability of the bottom of the device.

[0027] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A municipal engineering foundation pit safety protection device, comprising two sets of support rods (1), characterized in that: A hinge seat (101) is installed on the surface of the support rod (1); two groups of connecting rods (102) are fixedly connected between the two groups of support rods (1); a protective rod (103) is fixedly connected between the upper and lower groups of connecting rods (102); an adjusting rod (2) is arranged at the bottom end of the support rod (1); a roller (201) is installed at the bottom end of the adjusting rod (2); a fixed shell (3) is installed outside the bottom end of the support rod (1); an inserting rod (301) is arranged inside the fixed shell (3); a rotating device (201) is arranged inside the support rod (1); A rotating shaft (4) is provided, the bottom end of the rotating shaft (4) is threadedly connected to the inside of the adjusting rod (2), a driving gear (401) is fixed to the surface of the rotating shaft (4), a screw rod (402) is rotatably arranged inside the fixed shell (3), the bottom end of the screw rod (402) is threadedly connected to the inside of the insertion rod (301), a driven gear (403) is fixed to the surface of the screw rod (402), the outer side of the driven gear (403) is meshed with the outer side of the driving gear (401), and a linkage assembly is provided between the top ends of the two groups of rotating shafts (4).

2. A municipal engineering foundation pit safety protection device according to claim 1, characterized in that: A slot hole is provided on one side of the support rod (1) close to the interior of the fixed shell (3), and the outer side of the driving gear (401) and the outer side of the driven gear (403) are both arranged in the slot hole.

3. A municipal engineering foundation pit safety protection device according to claim 1, characterized in that: Two groups of limit blocks are installed on the surface of the adjustment rod (2), and a limit groove is provided on the bottom side of the inner wall of the support rod (1), and the limit block is slidably arranged in the limit groove.

4. A municipal engineering foundation pit safety protection device according to claim 1, characterized in that: A guide rod (302) is fixed on the inner wall of the fixed shell (3), a sliding block is fixedly connected to the surface of the insertion rod (301), and the guide rod (302) is inserted into the inner circular hole of the sliding block on the surface of the insertion rod (301).

5. A municipal engineering foundation pit safety protection device according to claim 1, characterized in that: The linkage assembly comprises a rotating rod (5) rotatably arranged on the surface of the upper connecting rod (102), a rotating hand wheel (501) being fixed at the top of the rotating rod (5), two groups of sprocket wheels (502) being fixed inside the upper connecting rod (102) of the rotating rod (5), sprocket wheels (503) being fixed at the tops of the two groups of rotating shafts (4), and chains (504) being connected between the two groups of sprocket wheels (503) and one group of sprocket wheels (502) respectively.

6. A municipal engineering foundation pit safety protection device according to claim 5, characterized in that: A circular convex block is installed on the surface of the rotating hand wheel (501).

Images