Municipal engineering foundation pit safety protection device

Abstract

The utility model relates to the technical field of protection devices, and provides a municipal engineering foundation pit safety protection device which comprises a bottom plate, a supporting rod is fixedly connected to the side face of the bottom plate, a protection net is arranged at the top of the bottom plate, an adjusting device is arranged at the top of the bottom plate, and the adjusting device comprises a motor. An output shaft of the motor is fixedly connected with a rotating shaft, the top of the rotating shaft is fixedly connected with a threaded rod, the circumferential face of the threaded rod is in threaded connection with a threaded sleeve, the side face of the threaded sleeve is fixedly connected to the side face of a protective net, and the front side face of the protective net is fixedly connected with a positioning plate. The side face of the positioning plate is rotationally connected with an electric telescopic rod, one end of the electric telescopic rod is fixedly connected with a fixing plate, and the problems that in the prior art, it is difficult to adjust the height of the protective net, meanwhile, the whole protective net is firmer, the safety stability is reduced, and the safety performance of protection is reduced are solved.

Description

Technical Field

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

[0002] A foundation pit is a pit excavated at the designed foundation location according to the base elevation and plan dimensions. Before excavation, the excavation plan should be determined based on geological and hydrological data, combined with the conditions of nearby buildings. Waterproofing and drainage should also be ensured. For shallow excavations, side slopes can be used to stabilize the soil slope, with the slope gradient determined according to relevant construction regulations. For safety reasons, protective devices are typically installed around the sides of the foundation pit to prevent pedestrians and vehicles from falling into it.

[0003] According to a public disclosure of a municipal construction foundation pit safety protection device (publication number: CN221072645U), it includes steel sheet piles, a support mechanism is provided on the steel sheet piles, the support mechanism includes a cross brace, two opposite steel sheet piles are slidably connected to each of two cross braces, one of the cross braces is slidably connected to a building block, the building block is fixedly connected to a support rod, the support rod is internally threaded with a screw, one end of the screw is fixedly connected to a connecting block, the connecting block is rotatably connected to a connecting rod, the connecting rod is fixedly connected to another building block, the building block is slidably connected to the other cross brace, and the connecting block is rotatably connected to the other cross brace. The screw is rotated to adjust the support length so that the block can maintain contact with the cross brace, so that the support rod can adapt to different work requirements, and can be adjusted in time according to the change of the position of the steel sheet pile to maintain the continuous contact of the support rod, so that the steel sheet pile can remain in a vertical state in contact with the soil, thereby improving the protection effect. However, in the above-mentioned device, it is difficult to adjust the height of the protective net while making the overall protective net more solid through the cooperation of components such as the support mechanism, the block and the connecting rod, which reduces the safety stability and the safety performance of the protection, and needs to be improved. Utility Model Content

[0004] The utility model provides a municipal engineering foundation pit safety protection device, which solves the problems raised in the above documents.

[0005] The technical solution of the utility model is as follows: a municipal engineering foundation pit safety protection device, comprising a bottom plate, a side of the bottom plate is fixedly connected to a support rod, and a top of the bottom plate is provided with a protection net;

[0006] The top of the bottom plate is provided with an adjusting device, the adjusting device comprises a motor, the output shaft of the motor is fixedly connected with a rotating shaft, the top of the rotating shaft is fixedly connected with a threaded rod, the circumferential surface of the threaded rod is threadedly connected with a threaded sleeve, the side surface of the threaded sleeve is fixedly connected with the side surface of the protective net, the front side surface of the protective net is fixedly connected with a positioning plate, the side surface of the positioning plate is rotatably connected with an electric telescopic rod, one end of the electric telescopic rod is fixedly connected with a fixed plate, the side surface of the positioning plate is rotatably connected with a rotating rod, the circumferential surface of the rotating rod is fixedly connected with a gear, and the side surface of the supporting rod is fixedly connected with a rack.

[0007] The threaded rod penetrates the top of the supporting rod, the rack is located on the movement track of the gear, and the design of the rack can open the electric telescopic rod when the protective net is moved to a certain height, thereby increasing the stability of the device.

[0008] The electric telescopic rod is provided with two and is symmetrical to each other along the vertical central axis of the protective net, the supporting rod is provided with two, and the motor is provided with two, so that the number of the electric telescopic rod is two, the stability of the device is increased, and the protective net is prevented from falling when the height is too high.

[0009] The electric telescopic rod is located on the side surface of the protective net, the supporting rod is located on the movement track of the threaded sleeve, and the design of the supporting rod is favorable for fixing the rack, so that the gear rotates and the electric telescopic rod is opened.

[0010] The shape of the supporting rod is C-shaped, the side surface of the threaded sleeve is fixedly connected with a limiting rod, and the end, away from the threaded sleeve, of the limiting rod is slidably connected with the side surface of the supporting rod. The design of the limiting rod increases the stability of the threaded sleeve and limits the threaded sleeve.

[0011] The bottom of the fixed plate is provided with a buffer device, the buffer device comprises a buffer plate, the bottom of the fixed plate is fixedly connected with the buffer plate, the bottom of the buffer plate is fixedly connected with a buffer telescopic rod, the bottom of the buffer plate is fixedly connected with a spring, the end, away from the buffer plate, of the spring is fixedly connected with the circumferential surface of the buffer telescopic rod, the bottom of the buffer plate is fixedly connected with a buffer block, the bottom of the buffer block is fixedly connected with a buffer spring, and the end, away from the buffer block, of the spring is fixedly connected with a damping plate.

[0012] The buffer plate is provided with two and is symmetrical to each other along the vertical central axis of the protective net, the buffer telescopic rod is provided with two and is symmetrical to each other along the vertical central axis of the buffer plate, and the design of the buffer plate is favorable for protecting the buffer plate and prolonging the service life of the device.

[0013] The inclination angle of the spring is 45 degrees, the bottom of the buffer plate is located on the movement track of the damping plate, the spring stores external energy as potential energy, and the response speed of the system is slowed down.

[0014] The buffer plate is located on the side of the protective net, and the inclination angle of the buffer telescopic rod is set to forty-five degrees. The design of the buffer telescopic rod is conducive to effectively protecting the electric telescopic rod and reducing the damage to the device caused by vibration force.

[0015] The initial state of the buffer spring is a relaxed state. The buffer spring absorbs the applied kinetic energy through deformation, thereby increasing the buffering effect.

[0016] The working principle and beneficial effects of the utility model are as follows:

[0017] 1. In the utility model, the motor drives the threaded rod, the threaded sleeve and the limit rod to drive the protective net to move upward, and the gear and the rack cooperate with each other to drive the rotating rod to rotate the electric telescopic rod. The electric telescopic rod opens at a 45-degree angle to support downward, ensuring the stability of the safety protection device and making the overall protective net more solid, thereby enhancing a certain degree of safety and stability and improving the safety performance of the protection.

[0018] 2. In the utility model, the buffer plate is driven by the electric telescopic rod when it moves downward at a forty-five degree angle. The buffer spring is installed at a forty-five degree angle at the bottom of the buffer plate and moves in cooperation with the buffer telescopic rod, so that the electric telescopic rod has a buffering effect, ensuring the safety of the electric telescopic rod, thereby enhancing a certain stability of the protective net and improving the safety of the foundation pit safety protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0020] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0021] Figure 2 This is a three-dimensional side view of the threaded rod of the utility model;

[0022] Figure 3 This is a three-dimensional enlarged structural diagram of the gear of the utility model;

[0023] Figure 4 This is a three-dimensional enlarged structural diagram of the spring of the utility model;

[0024] Figure 5 for Figure 1 Enlarged view of part A in .

[0025] In the figure: 101, base plate; 102, support rod; 103, protective net; 2, adjustment device; 201, motor; 202, rotating shaft; 203, threaded rod; 204, threaded sleeve; 205, limit rod; 206, positioning plate; 207, electric telescopic rod; 208, fixed plate; 209, gear; 210, rack; 211, rotating rod; 3, buffer device; 301, buffer plate; 302, buffer telescopic rod; 303, spring; 304, buffer block; 305, buffer spring; 306, shock-absorbing plate. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1

[0028] like Figure 1~Figure 2As shown, the embodiment proposes a municipal engineering foundation pit safety protection device, including the bottom plate 101, the side surface of the bottom plate 101 is fixedly connected with the support rod 102, and the top of the bottom plate 101 is provided with the protective net 103; The top of the bottom plate 101 is provided with the adjusting device 2, the adjusting device 2 includes the motor 201, the output shaft of the motor 201 is fixedly connected with the rotating shaft 202, the top of the rotating shaft 202 is fixedly connected with the threaded rod 203, the circumferential surface of the threaded rod 203 is threadedly connected with the threaded sleeve 204, the side surface of the threaded sleeve 204 is fixedly connected on the side surface of the protective net 103, the front side of the protective net 103 is fixedly connected with the positioning plate 206, the side surface of the positioning plate 206 is rotatably connected with the electric telescopic rod 207, one end of the electric telescopic rod 207 is fixedly connected with the fixed plate 208, the side surface of the positioning plate 206 is rotatably connected with the rotating rod 211, the circumferential surface of the rotating rod 211 is fixedly connected with the gear 209, and the side surface of the support rod 102 is fixedly connected with the rack 210. The threaded rod 203 penetrates through the top of the support rod 102, the rack 210 is located on the movement track of the gear 209, and the design of the rack 210 can make the protective net 103 move to a certain height to open the electric telescopic rod 207, thereby increasing the stability of the device. The electric telescopic rod 207 is provided with two, and is mutually symmetrical along the vertical central axis of the protective net 103, the support rod 102 is provided with two, the motor 201 is provided with two, and the number of the electric telescopic rod 207 is two, which increases the stability of the device and prevents the protective net 103 from falling when the height is too high. The electric telescopic rod 207 is located on the side surface of the protective net 103, the support rod 102 is located on the movement track of the threaded sleeve 204, the design of the support rod 102 is favorable for fixing the rack 210, so that the gear 209 rotates to open the electric telescopic rod 207. The shape of the support rod 102 is C-shaped, the side surface of the threaded sleeve 204 is fixedly connected with the limiting rod 205, one end of the limiting rod 205 away from the threaded sleeve 204 is slidably connected with the side surface of the support rod 102, and the design of the limiting rod 205 increases the stability of the threaded sleeve 204 and limits the threaded sleeve 204.

[0029] In the example, the motor 201 drives the rotating shaft 202 to rotate, then the rotating shaft 202 drives the threaded rod 203 to rotate, the threaded rod 203 drives the threaded sleeve 204 to reciprocate, the threaded sleeve 204 and the limiting rod 205 limit the movement to drive the protective net 103 to move upward, so that the gear 209 contacts the rack 210 to rotate, thereby driving the rotating rod 211 to rotate the electric telescopic rod 207 to open downward at an angle of four or five, which makes the foundation pit protection device more firm, thereby enhancing a certain stability and improving the safety performance of protection.

[0030] Embodiment 2

[0031] As Figures 3 to 5As shown, based on the same concept as the above-mentioned embodiment 1, a municipal engineering foundation pit safety protection device is also proposed. A buffer device 3 is provided at the bottom of the fixed plate 208. The buffer device 3 includes a buffer plate 301. The bottom of the fixed plate 208 is fixedly connected to the buffer plate 301. The bottom of the buffer plate 301 is fixedly connected to a buffer telescopic rod 302. The bottom of the buffer plate 301 is fixedly connected to a spring 303. The end of the spring 303 away from the buffer plate 301 is fixedly connected to the circumferential surface of the buffer telescopic rod 302. The bottom of the buffer plate 301 is fixedly connected to a buffer block 304. The bottom of the buffer block 304 is fixedly connected to a buffer spring 305. The end of the spring 303 away from the buffer block 304 is fixedly connected to a shock-absorbing plate 306. Two buffer plates 301 are provided and are symmetrical along the vertical central axis of the protective net 103. Two buffer telescopic rods 302 are provided and are symmetrical along the vertical central axis of the buffer plates 301. The design of the buffer plates 301 facilitates protection of the buffer plates 301 and extends the service life of the device. The spring 303 is tilted at a 45-degree angle. The bottom of the buffer plate 301 is located on the motion trajectory of the shock-absorbing plate 306. The spring 303 stores external energy as potential energy, slowing the system's response. The buffer plate 301 is located on the side of the protective net 103, and the buffer telescopic rod 302 is tilted at a 45-degree angle. The design of the buffer telescopic rod 302 effectively protects the electric telescopic rod 207 and reduces damage to the device caused by vibration. The buffer spring 305 is initially relaxed, similar to the initial state of spring 303. The buffer spring 305 absorbs applied kinetic energy through deformation, enhancing the buffering effect.

[0032] In this embodiment, when the electric telescopic rod 207 moves downward at a forty-five degree angle, it drives the buffer plate 301 and the buffer spring 305 to move in cooperation with the buffer telescopic rod 302, so that the electric telescopic rod 207 has a buffering effect. During vibration or impact, the buffer spring 305 absorbs the applied kinetic energy by deformation. During the deformation process, the spring 303 stores the external energy as potential energy, slowing down the response speed of the system and ensuring the stability of the foundation pit safety protection device, thereby enhancing a certain stability of the electric telescopic rod 207, improving the functionality of the foundation pit protection, and improving the safety of the foundation pit safety protection device.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A municipal engineering foundation pit safety protection device, characterized in that: It comprises a bottom plate (101), a side surface of the bottom plate (101) is fixedly connected to a support rod (102), and a top of the bottom plate (101) is provided with a protective net (103); An adjusting device (2) is provided on the top of the base plate (101), and the adjusting device (2) comprises a motor (201), an output shaft of the motor (201) is fixedly connected to a rotating shaft (202), a top of the rotating shaft (202) is fixedly connected to a threaded rod (203), a circumferential surface of the threaded rod (203) is threadedly connected to a threaded sleeve (204), a side surface of the threaded sleeve (204) is fixedly connected to a side surface of the protective net (103), a front side surface of the protective net (103) is fixedly connected to a positioning plate (206), a side surface of the positioning plate (206) is rotatably connected to an electric telescopic rod (207), one end of the electric telescopic rod (207) is fixedly connected to a fixing plate (208), a side surface of the positioning plate (206) is rotatably connected to a rotating rod (211), a circumferential surface of the rotating rod (211) is fixedly connected to a gear (209), and a side surface of the support rod (102) is fixedly connected to a rack (210).

2. A municipal engineering foundation pit safety protection device according to claim 1, characterized in that: The threaded rod (203) passes through the top of the support rod (102), and the rack (210) is located on the motion track of the gear (209).

3. A municipal engineering foundation pit safety protection device according to claim 2, characterized in that: Two electric telescopic rods (207) are provided and are symmetrical to each other along the vertical center axis of the protective net (103); two support rods (102) are provided; and two motors (201) are provided.

4. A municipal engineering foundation pit safety protection device according to claim 3, characterized in that: The electric telescopic rod (207) is located on the side of the protective net (103), and the support rod (102) is located on the motion track of the threaded sleeve (204).

5. A municipal engineering foundation pit safety protection device according to claim 4, characterized in that: The support rod (102) is configured in a C-shape, the side surface of the threaded sleeve (204) is fixedly connected to a limiting rod (205), and one end of the limiting rod (205) away from the threaded sleeve (204) is slidably connected to the side surface of the support rod (102).

6. A municipal engineering foundation pit safety protection device according to claim 5, characterized in that: A buffer device (3) is provided at the bottom of the fixed plate (208), and the buffer device (3) includes a buffer plate (301). The bottom of the fixed plate (208) is fixedly connected to the buffer plate (301), the bottom of the buffer plate (301) is fixedly connected to a buffer telescopic rod (302), the bottom of the buffer plate (301) is fixedly connected to a spring (303), one end of the spring (303) away from the buffer plate (301) is fixedly connected to the circumferential surface of the buffer telescopic rod (302), the bottom of the buffer plate (301) is fixedly connected to a buffer block (304), the bottom of the buffer block (304) is fixedly connected to a buffer spring (305), and one end of the spring (303) away from the buffer block (304) is fixedly connected to a shock absorbing plate (306).

7. A municipal engineering foundation pit safety protection device according to claim 6, characterized in that: Two buffer plates (301) are provided and are symmetrical to each other along the vertical center axis of the protective net (103); two buffer telescopic rods (302) are provided and are symmetrical to each other along the vertical center axis of the buffer plate (301).

8. A municipal engineering foundation pit safety protection device according to claim 7, characterized in that: The inclination angle of the spring (303) is set to 45 degrees, and the bottom of the buffer plate (301) is located on the movement track of the shock absorbing plate (306).

9. A municipal engineering foundation pit safety protection device according to claim 8, characterized in that: The buffer plate (301) is located on the side of the protective net (103), and the inclination angle of the buffer telescopic rod (302) is set to 45 degrees.

10. A municipal engineering foundation pit safety protection device according to claim 9, characterized in that: The initial state of the buffer spring (305) is a relaxed state, and the initial state of the spring (303) is a relaxed state.

Images