Protective guardrail for constructional engineering foundation pit

Abstract

The utility model belongs to the technical field of building construction, and discloses a protective guardrail for a building engineering foundation pit, which comprises a base, a support frame with an L-shaped cross section is fixedly arranged on the upper surface of the base, and a protective net is jointly mounted on the side walls, close to each other in the horizontal direction and the vertical direction, of the support frame. A supporting rod is fixedly arranged on the side wall of the supporting frame, the supporting rod and the protective net are mutually fixed, a connecting rod is fixedly arranged on the side wall, close to the protective net, of the supporting rod, the end, away from the supporting rod, of the connecting rod and the supporting frame are mutually fixed, and the upper surface of the connecting rod abuts against the bottom face of the protective net. The supporting rod is provided with a connecting assembly used for being connected with the other supporting rod. The effect of improving the stability of the device is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a protective guardrail for a foundation pit of a construction project. Background Art

[0002] At present, with the rapid development of modern construction industry and the continuous updating of construction methods, there are more and more deep foundation pit construction sites. Foundation pit protection is to ensure the safety of underground structure construction and the surrounding environment of the foundation pit, and to adopt support, reinforcement and protection measures for the side walls of the foundation pit and the surrounding environment. In the process of construction, safety issues are always the most important point we are concerned about; at the construction site, guardrails can effectively isolate workers from dangerous sources and directly reduce the accident rate. It is an extremely effective safety protection measure. Therefore, in order to ensure the safety of workers during construction and prevent people or materials from falling into the deep foundation pit, it is necessary to set up guardrails on the side of the foundation pit for protection during the excavation stage.

[0003] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: In the prior art, when workers need to use guardrails to isolate designated areas at a construction site, the workers often connect two guardrails to each other with iron wire. The use of iron wire for connection cannot guarantee the stability of the guardrails during use. During use, the guardrails are prone to shaking, which in turn causes the guardrails to separate from each other during work, thereby reducing the stability of the device. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a protective guardrail for a foundation pit of a construction project.

[0005] The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a protective guardrail for a foundation pit of a construction project, comprising a base, a support frame with an L-shaped cross-section is fixedly arranged on the upper surface of the base, and a protective net is jointly installed on the side walls of the support frame that are close to each other in the horizontal and vertical directions, and a support rod is fixedly arranged on the side wall of the support frame, and the support rod and the protective net are fixed to each other, and a connecting rod is fixedly arranged on the side wall of the support rod close to the protective net, and one end of the connecting rod away from the support rod is fixed to the support frame, and the upper surface of the connecting rod abuts against the bottom surface of the protective net, and a connecting component for connecting another support rod is arranged on the support rod.

[0006] By adopting the above technical solution, when the staff needs to fence the designated area, the staff needs to move the protective device to the fenced area. Then, the protective device is used to fence the fenced area. During this process, the staff needs to activate the connection component to connect the two protective devices to each other. During this process, the connection component reduces the probability of the protective devices being separated from each other, thereby improving the stability of the device.

[0007] Furthermore, a trapezoidal groove is provided on the upper surface of the support rod, and the connecting component includes a trapezoidal block slidably arranged in the trapezoidal groove, and a limiting groove is provided on the bottom surface of the trapezoidal block. The connecting component also includes a limiting rod fixedly arranged on the bottom surface of the trapezoidal groove, the limiting rod is slidably connected to the limiting groove, and the trapezoidal block is fixed to another support rod.

[0008] By adopting the above technical solution, when the staff needs to start the connecting assembly to connect the two protective devices to each other, the staff needs to slide the trapezoidal block into the trapezoidal groove, so that the bottom surface of the trapezoidal block abuts against the inner bottom wall of the trapezoidal groove, thereby connecting the two support rods to each other. In this process, the trapezoidal block and the trapezoidal groove with a trapezoidal cross-section reduce the probability of the trapezoidal block detaching from the trapezoidal groove, thereby reducing the probability of the two support rods separating from each other, thereby improving the stability of the device.

[0009] Furthermore, a fixing groove is provided on the inner wall of the trapezoidal groove, a fixing block is slidably arranged in the fixing groove, a first spring is fixedly arranged on the side wall of the fixing block away from the trapezoidal block, and the other end of the first spring is fixedly arranged on the inner wall of the fixing groove.

[0010] By adopting the above technical solution, when the bottom surface of the trapezoidal block abuts against the inner bottom wall of the trapezoidal groove, the fixed block slides in the direction close to the trapezoidal groove under the action of the first spring, and then the fixed block slides into the trapezoidal groove at one end under the action of the first spring. In this process, the bottom surface of the fixed block abuts against the upper surface of the trapezoidal block, and then the fixed block blocks the trapezoidal block, thereby reducing the probability of the trapezoidal block sliding in the trapezoidal groove during use, thereby improving the stability of the device.

[0011] Furthermore, a rotating groove is provided on the upper surface of the support frame, a sliding groove is provided on the inner bottom wall of the rotating groove, a rotating rod is rotatably arranged in the rotating groove, a threaded rod is fixedly arranged on the bottom surface of the rotating rod, a slider is slidably arranged in the sliding groove, the slider is threadedly connected to the threaded rod, a fixing rope is fixedly arranged on the bottom surface of the slider, and the other end of the fixing rope is fixedly arranged on the inner wall of the fixing block away from the trapezoidal block.

[0012] By adopting the above technical solution, when the staff needs to remove the protective device, the staff needs to rotate the rotating rod, so that the threaded rod rotates synchronously with the rotating rod under the action of the rotating rod, so that the slider slides upward under the action of the threaded rod, and then one end of the fixing rope slides upward under the action of the slider, so that the other end of the fixing rope slides in the direction away from the trapezoidal groove under the action of the slider, and then the fixing block slides in the direction away from the trapezoidal groove under the action of the fixing rope, so that the fixing block slides into the fixing groove under the action of the fixing rope, thereby reducing the probability of the fixing block blocking the trapezoidal block when the staff removes the protective device, thereby reducing the difficulty of the staff to remove the protective device.

[0013] Furthermore, a rubber ring is sleeved on the side wall of the limiting rod, the bottom surface of the rubber ring abuts against the inner bottom wall of the trapezoidal groove, and the diameter of the rubber ring gradually increases from top to bottom.

[0014] By adopting the above technical solution, when the bottom surface of the trapezoidal block abuts against the inner bottom wall of the trapezoidal groove, the limit rod slides into the limit groove. During this process, the trapezoidal block squeezes the rubber ring. Because the rubber is elastic, the static friction between the trapezoidal block and the limit rod is increased, thereby further reducing the probability of the trapezoidal block sliding, thereby improving the stability of the device.

[0015] Furthermore, a first inclined surface is provided on an edge where the upper surface of the fixing block intersects with the side wall thereof away from the first spring.

[0016] By adopting the above technical solution, when the staff installs the protective device, the trapezoidal block gradually approaches and finally presses against the first inclined surface, so that the fixing block slides into the fixing groove under the action of the trapezoidal block, thereby reducing the difficulty for the staff to connect the protective device.

[0017] Furthermore, a trapezoidal rod is slidably arranged in the trapezoidal groove, and the bottom surface of the trapezoidal rod abuts against the upper surface of the fixing block.

[0018] By adopting the above technical solution, the trapezoidal rod seals the trapezoidal groove, thereby reducing the probability of dust from the construction site entering the trapezoidal groove during work, thereby extending the service life of the device.

[0019] In summary, the utility model has the following beneficial effects:

[0020] 1. In this application, when the staff needs to fence off the designated area, the staff needs to move the protective device to the fenced area. Then, the protective device is used to fence off the fenced area. During this process, the staff needs to activate the connection component to connect the two protective devices to each other. During this process, the connection component reduces the probability of the protective devices being separated from each other, thereby improving the stability of the device;

[0021] 2. In the present application, when the staff needs to start the connection assembly to connect the two protective devices to each other, the staff needs to slide the trapezoidal block into the trapezoidal groove, so that the bottom surface of the trapezoidal block abuts against the inner bottom wall of the trapezoidal groove, so that the two support rods are connected to each other. In this process, the trapezoidal block and the trapezoidal groove with a trapezoidal cross section reduce the probability of the trapezoidal block detaching from the trapezoidal groove, thereby reducing the probability of the two support rods separating from each other, thereby improving the stability of the device;

[0022] 3. In the present application, when the bottom surface of the trapezoidal block abuts against the inner bottom wall of the trapezoidal groove, the fixed block slides toward the direction close to the trapezoidal groove under the action of the first spring, and then one end of the fixed block slides into the trapezoidal groove under the action of the first spring. During this process, the bottom surface of the fixed block abuts against the upper surface of the trapezoidal block, and then the fixed block blocks the trapezoidal block, thereby reducing the probability of the trapezoidal block sliding in the trapezoidal groove during use, thereby improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the support rod in the embodiment of the utility model;

[0025] Figure 3 It is a schematic diagram of the cross-sectional structure of the support rod in the embodiment of the utility model;

[0026] Figure 4 This utility model embodiment Figure 3 A is a schematic diagram of the cross-sectional structure;

[0027] Figure 5 This utility model embodiment Figure 3 Schematic diagram of the cross-sectional structure of B.

[0028] In the figure: 1. base; 11. support frame; 12. protection net; 13. support rod; 14. connecting rod; 2. trapezoidal groove; 21. limit groove; 22. fixed groove; 23. rotating groove; 24. slide groove; 3. connecting assembly; 31. trapezoidal block; 32. limit rod; 4. fixed block; 41. first spring; 5. rotating rod; 51. threaded rod; 52. slider; 53. fixing rope; 6. rubber ring; 7. first inclined surface; 8. trapezoidal rod. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0030] like Figure 1-5 As shown, the embodiment of the present application discloses a protective guardrail for a foundation pit of a construction project, including a base 1, a support frame 11, a protective net 12, a support rod 13, a connecting rod 14, a connecting assembly 3, a fixed block 4, a first spring 41, a rotating rod 5, a threaded rod 51, a slider 52, a fixed rope 53 and a rubber ring 6. The base 1 is a rectangular plate-like structure, the cross-section of the support frame 11 is L-shaped, and the support frame 11 is fixedly arranged on the upper surface of the base 1. The protective net 12 is installed on the side walls of the support frame 11 that are close to each other in the horizontal direction and the vertical direction, and is used to protect the designated area. The support rod 13 is a rectangular rod-like structure, and the support rod 13 is fixedly arranged on the side walls of the support frame 11, and the support rod 13 and the protective net 12 are fixed to each other. The connecting rod 14 is a rectangular rod-shaped structure. The connecting rod 14 is fixedly arranged on the side wall of the supporting rod 13 close to the protective net 12. One end of the connecting rod 14 away from the supporting rod 13 is fixed to the supporting frame 11, and the upper surface of the connecting rod 14 abuts against the bottom surface of the protective net 12.

[0031] When the staff needs to fence the designated area, the staff needs to move the protective device to the fenced area. Then, the protective device is used to fence the fenced area. During this process, the staff needs to activate the connection component 3 to connect the two protective devices to each other. During this process, the connection component 3 reduces the probability of the protective devices being separated from each other, thereby improving the stability of the device.

[0032] The upper surface of the support rod 13 is provided with a trapezoidal groove 2, and the connecting assembly 3 is arranged on the support rod 13 for connecting another support rod 13. The connecting assembly 3 includes a trapezoidal block 31 and a limiting rod 32. The cross section of the trapezoidal block 31 is trapezoidal, and the trapezoidal block 31 is slidably arranged in the trapezoidal groove 2. The bottom surface of the trapezoidal block 31 is provided with a limiting groove 21, and the trapezoidal block 31 is fixed to the other support rod 13. The limiting rod 32 is a round rod-shaped structure with a vertical axis. The limiting rod 32 is fixedly arranged on the bottom surface of the trapezoidal groove 2, and the limiting rod 32 is slidably connected to the limiting groove 21.

[0033] When the staff needs to start the connecting component 3 to connect the two protective devices to each other, the staff needs to slide the trapezoidal block 31 into the trapezoidal groove 2, so that the bottom surface of the trapezoidal block 31 abuts against the inner bottom wall of the trapezoidal groove 2, so that the two support rods 13 are connected to each other. In this process, the trapezoidal block 31 with a trapezoidal cross-section and the trapezoidal groove 2 reduce the probability of the trapezoidal block 31 detaching from the trapezoidal groove 2, thereby reducing the probability of the two support rods 13 separating from each other, thereby improving the stability of the device.

[0034] A fixing groove 22 is provided on the inner wall of the trapezoidal groove 2, and the fixing block 4 is a rectangular block structure, and the fixing block 4 is slidably arranged in the fixing groove 22. One end of the first spring 41 is fixedly arranged on the side wall of the fixing block 4 away from the trapezoidal block 31, and the other end of the first spring 41 is fixedly arranged on the inner wall of the fixing groove 22.

[0035] When the bottom surface of the trapezoidal block 31 abuts against the inner bottom wall of the trapezoidal groove 2, the fixed block 4 slides toward the trapezoidal groove 2 under the action of the first spring 41, and then one end of the fixed block 4 slides into the trapezoidal groove 2 under the action of the first spring 41. During this process, the bottom surface of the fixed block 4 abuts against the upper surface of the trapezoidal block 31, and then the fixed block 4 blocks the trapezoidal block 31, thereby reducing the probability of the trapezoidal block 31 sliding in the trapezoidal groove 2 during use, thereby improving the stability of the device.

[0036] A rotation groove 23 is provided on the upper surface of the support frame 11, and a slide groove 24 is provided on the inner bottom wall of the rotation groove 23. The rotation rod 5 is a round rod-shaped structure, and its axis is vertical. The rotation rod 5 is rotatably set in the rotation groove 23. The threaded rod 51 is fixedly set on the bottom surface of the rotation rod 5, and its axis coincides with the axis of the rotation rod 5. The slider 52 is a rectangular block structure, and the slider 52 is slidably set in the slide groove 24. The slider 52 is threadedly connected with the threaded rod 51. One end of the fixing rope 53 is fixedly set on the bottom surface of the slider 52, and the other end of the fixing rope 53 is fixedly set on the inner wall of the fixing block 4 away from the trapezoidal block 31.

[0037] When the staff needs to remove the protective device, the staff needs to rotate the rotating rod 5, so that the threaded rod 51 rotates synchronously with the rotating rod 5 under the action of the rotating rod 5, so that the slider 52 slides upward under the action of the threaded rod 51, and then one end of the fixing rope 53 slides upward under the action of the slider 52, so that the other end of the fixing rope 53 slides in the direction away from the trapezoidal groove 2 under the action of the slider 52, and then the fixing block 4 slides in the direction away from the trapezoidal groove 2 under the action of the fixing rope 53, so that the fixing block 4 slides into the fixing groove 22 under the action of the fixing rope 53, thereby reducing the probability of the fixing block 4 blocking the trapezoidal block 31 when the staff removes the protective device, thereby reducing the difficulty of the staff to remove the protective device.

[0038] The rubber ring 6 is sleeved on the side wall of the limiting rod 32, and its axis coincides with the axis of the limiting rod 32. The bottom surface of the rubber ring 6 abuts against the inner bottom wall of the trapezoidal groove 2, and the diameter of the rubber ring 6 gradually increases from top to bottom.

[0039] When the bottom surface of the trapezoidal block 31 abuts against the inner bottom wall of the trapezoidal groove 2, the limiting rod 32 slides into the limiting groove 21. During this process, the trapezoidal block 31 squeezes the rubber ring 6. Because the rubber is elastic, the static friction between the trapezoidal block 31 and the limiting rod 32 is increased, thereby further reducing the probability of the trapezoidal block 31 sliding, thereby improving the stability of the device.

[0040] A first inclined surface 7 is formed on the edge where the upper surface of the fixing block 4 intersects with the side wall thereof away from the first spring 41 .

[0041] When the worker installs the protective device, the trapezoidal block 31 gradually approaches and finally abuts against the first inclined surface 7, so that the fixing block 4 slides into the fixing groove 22 under the action of the trapezoidal block 31, thereby reducing the difficulty of the worker connecting the protective device.

[0042] In order to extend the service life of the device, a trapezoidal rod 8 is slidably arranged in the trapezoidal groove 2, and the bottom surface of the trapezoidal rod 8 abuts against the upper surface of the fixed block 4. The trapezoidal rod 8 seals the trapezoidal groove 2, thereby reducing the probability of dust from the construction site entering the trapezoidal groove 2 during the working process, thereby extending the service life of the device.

[0043] The use principle of a protective guardrail for a foundation pit of a construction project in this embodiment is as follows: when the staff needs to fence a designated area, the staff needs to move the protective device to the fenced area. Subsequently, the fenced area is fenced with the protective device. During this process, when the staff needs to connect the two protective devices to each other, the staff needs to slide the trapezoidal block 31 into the trapezoidal groove 2, so that the bottom surface of the trapezoidal block 31 abuts against the inner bottom wall of the trapezoidal groove 2, so that the two support rods 13 are connected to each other. During this process, the trapezoidal block 31 with a trapezoidal cross section and the trapezoidal groove 2 reduce the probability of the trapezoidal block 31 detaching from the trapezoidal groove 2, thereby reducing the probability of the two support rods 13 separating from each other, thereby improving the stability of the device.

[0044] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A protective guardrail for a foundation pit of a construction project, comprising a base (1), characterized in that: A support frame (11) having an L-shaped cross section is fixedly arranged on the upper surface of the base (1); a protective net (12) is installed on the side walls of the support frame (11) that are close to each other in the horizontal direction and the vertical direction; a support rod (13) is fixedly arranged on the side wall of the support frame (11); the support rod (13) and the protective net (12) are fixed to each other; a connecting rod (14) is fixedly arranged on the side wall of the support rod (13) close to the protective net (12); one end of the connecting rod (14) away from the support rod (13) is fixed to the support frame (11); the upper surface of the connecting rod (14) is in contact with the bottom surface of the protective net (12); and a connecting component (3) for connecting another support rod (13) is arranged on the support rod (13).

2. The protective guardrail for a foundation pit of a construction project according to claim 1 is characterized by: The upper surface of the support rod (13) is provided with a trapezoidal groove (2), the connecting assembly (3) comprises a trapezoidal block (31) slidably arranged in the trapezoidal groove (2), the bottom surface of the trapezoidal block (31) is provided with a limiting groove (21), the connecting assembly (3) further comprises a limiting rod (32) fixedly arranged on the bottom surface of the trapezoidal groove (2), the limiting rod (32) is slidably connected to the limiting groove (21), and the trapezoidal block (31) is fixed to another support rod (13).

3. The protective guardrail for a foundation pit of a construction project according to claim 2 is characterized in that: A fixing groove (22) is provided on the inner wall of the trapezoidal groove (2), a fixing block (4) is slidably arranged in the fixing groove (22), a first spring (41) is fixedly arranged on the side wall of the fixing block (4) away from the trapezoidal block (31), and the other end of the first spring (41) is fixedly arranged on the inner wall of the fixing groove (22).

4. The protective guardrail for a foundation pit of a construction project according to claim 3 is characterized by: The upper surface of the support frame (11) is provided with a rotation groove (23), the inner bottom wall of the rotation groove (23) is provided with a slide groove (24), a rotation rod (5) is rotatably arranged in the rotation groove (23), a threaded rod (51) is fixedly arranged on the bottom surface of the rotation rod (5), a slider (52) is slidably arranged in the slide groove (24), the slider (52) is threadedly connected to the threaded rod (51), a fixing rope (53) is fixedly arranged on the bottom surface of the slider (52), and the other end of the fixing rope (53) is fixedly arranged on the inner wall of the fixing block (4) away from the trapezoidal block (31).

5. The protective guardrail for a foundation pit of a construction project according to claim 2 is characterized by: A rubber ring (6) is sleeved on the side wall of the limiting rod (32), the bottom surface of the rubber ring (6) abuts against the inner bottom wall of the trapezoidal groove (2), and the diameter of the rubber ring (6) gradually increases from top to bottom.

6. The protective guardrail for a foundation pit of a construction project according to claim 3 is characterized by: A first inclined surface (7) is provided on the edge where the upper surface of the fixing block (4) intersects with the side wall thereof away from the first spring (41).

7. The protective guardrail for a foundation pit of a construction project according to claim 2 is characterized by: A trapezoidal rod (8) is slidably arranged in the trapezoidal groove (2), and the bottom surface of the trapezoidal rod (8) abuts against the upper surface of the fixed block (4).

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