A protective device for deep foundation pit construction of building

Abstract

The present application relates to a protective device for deep foundation pit construction of building construction, and relates to the field of foundation pit protective devices, which includes a protective plate, a connecting assembly, a plug-in assembly, and a pressing assembly; the connecting assembly includes a fixed cylinder and a movable cylinder, and the fixed cylinder is coaxially connected to one end of the movable cylinder; of two adjacent protective plates, one protective plate is fixedly connected to the fixed cylinder, and the other protective plate is fixedly connected to the movable cylinder; the plug-in assembly includes a limit seat and a plug-in rod; the limit seat is fixedly connected to the movable cylinder, and a limit hole is provided on the limit seat; the plug-in rod is coaxially arranged in the movable cylinder, and the plug-in rod is passed through the limit hole, so that the plug-in rod can rotate along the limit seat and slide on the limit seat along the long side direction of the movable cylinder; a sliding member is fixedly connected to the plug-in rod, and the sliding member is slidably connected to the movable cylinder along the long side direction of the movable cylinder; the pressing assembly is used to slide the plug-in rod along the long side direction of the movable cylinder. The present application has the effect of improving the stability of the foundation pit protective device.

Description

Technical Field

[0001] The present application relates to the field of foundation pit protection devices, and in particular to a protection device for deep foundation pit construction of building construction. Background Art

[0002] During building construction, foundation treatment is usually required. When treating part of the foundation, a deep foundation pit needs to be dug on the foundation. After the deep foundation pit is dug, in order to reduce the risk of people falling into the deep foundation pit, a protective device will be installed around the deep foundation pit. The protective device will enclose the deep foundation pit to reduce the risk of people falling into the deep foundation pit.

[0003] In the related art, a Chinese patent with publication number CN212802804U discloses a foundation pit protection device for municipal construction, which mainly includes a guardrail frame, a protective cover, a placement plate, a support frame and a warning sign. A grille is welded and fixed on the inner side of the guardrail frame, a placement plate is fixed on the grille, a warning sign is movably connected to the placement plate, a support frame is movably connected to the grille in the middle position, a second connecting sleeve is welded and fixed on one side of the guardrail frame, a first connecting sleeve is welded and fixed on the other side of the guardrail frame, a protective cover is welded and fixed on the top of the guardrail frame, and support legs are symmetrically fixed on the bottom of the guardrail frame.

[0004] With respect to the above-mentioned related technologies, multi-point support of the guardrail is achieved by arranging support legs and support frames on the guardrail to increase the stability of the guardrail; however, since the support legs and support frames are both placed on the ground, when the guardrail is impacted by external force or wind, since the support legs and support frames are both placed on the ground, they may move on the ground. Therefore, providing a foundation pit protection device with higher stability is an urgent problem to be solved. Summary of the Invention

[0005] In order to improve the stability of the foundation pit protection device, the present application provides a protection device for deep foundation pit construction of building construction.

[0006] The present application provides a protective device for deep foundation pit construction of building construction, which adopts the following technical solution:

[0007] A protective device for deep foundation pit construction of a building, comprising a protective plate, a connecting component, a plug-in component and a pressing component;

[0008] The connecting assembly includes a fixed cylinder and a movable cylinder, wherein the fixed cylinder is coaxially rotatably connected to one end of the movable cylinder;

[0009] Among two adjacent protective plates, one of the protective plates is fixedly connected to the fixed cylinder, and the other protective plate is fixedly connected to the movable cylinder;

[0010] The plug-in assembly includes a limit seat and a plug-in rod;

[0011] The limiting seat is fixedly connected to the movable cylinder, and a limiting hole is formed through the limiting seat;

[0012] The plug-in rod is coaxially arranged in the movable cylinder, and the plug-in rod is passed through the limiting hole, so that the plug-in rod can rotate along the limiting seat and slide on the limiting seat along the long side direction of the movable cylinder;

[0013] A sliding member is fixedly connected to the plug rod, and the sliding member is slidably connected to the movable cylinder along the long side direction of the movable cylinder;

[0014] The pressing assembly is used to make the plug rod slide along the long side direction of the movable cylinder.

[0015] By adopting the above technical solution, when maintenance is required on the outer peripheral side of the foundation pit, the protective device is transported to the outside of the foundation pit; next, the protective plate connected to the fixed cylinder is placed in a preset position, and then the protective plate fixed on the movable cylinder is rotated to rotate the second protective plate to the required position. During this process, since the sliding member can slide along the axial direction of the movable cylinder, the movable cylinder will drive the sliding member to rotate synchronously during the rotation, and the plug-in rod fixed on the sliding member will rotate synchronously with the sliding member; at the same time, since the pressing assembly can make the plug-in rod slide along the long side direction of the movable cylinder, the plug-in rod will be inserted into the foundation during the downward movement and rotation of the plug-in rod, and will be pulled out of the foundation during the upward movement and rotation of the plug-in rod; by providing a plug-in rod that can be inserted into the foundation, the firmness between the protective device and the foundation can be improved, making the protective device more stable on the foundation; furthermore, by utilizing the rotation of the movable cylinder and the cooperation of the pressing assembly, the plug-in rod can be inserted into the foundation, which can facilitate personnel to perform operations.

[0016] Optionally, the pressing assembly includes a guide seat and a push member;

[0017] The guide seat is fixedly connected to the inner wall of the fixed cylinder in a spiral shape;

[0018] One end of the push member is connected to the guide seat in a spiral circumferential sliding manner along the guide seat, and the other end is fixedly connected to the plug rod, so that the push member can drive the plug rod to slide along the axial direction of the movable cylinder during the sliding process along the guide seat.

[0019] By adopting the above technical solution, the plug-in rod will drive the push piece to rotate synchronously with the rotation of the movable cylinder, and the push piece will slide along the guide seat during the rotation. Since the guide seat is spiral, the push piece will move along the axial direction of the movable cylinder during the sliding process along the guide seat, so that the push piece will drive the plug-in rod to move synchronously; by providing a guide seat connected to the fixed cylinder, in conjunction with the pushing effect of the push piece, personnel only need to rotate the protective plate connected to the movable cylinder, and no other operations are required to insert the plug-in rod into the foundation, which effectively improves the efficiency of fixing the protective device on the foundation.

[0020] Optionally, an elastic member is further included, which is located between the sliding member and the limit seat. The elastic expansion and contraction direction of the elastic member is consistent with the sliding direction of the sliding member, and the elastic member has a force to push the sliding member toward the side of the guide seat in a deformed state.

[0021] By adopting the above technical solution, when the plug rod needs to be pulled out from the foundation, the plug rod needs to be moved toward the side of the guide seat. During this process, the elastic member has the force to push the sliding member to move toward the side of the guide seat when it recovers from the deformed state to the normal state, and the sliding member will drive the plug rod to move synchronously; therefore, the elastic member can provide a part of the thrust for pulling out the plug rod, and the plug board can be pulled out more smoothly.

[0022] Optionally, one end of the connecting rod away from the push member is coaxially fixedly connected to a spiral drill bit.

[0023] By adopting the above technical solution, the plug-in rod will drive the spiral drill bit to rotate during the rotation process. When the spiral drill bit rotates and moves along the axial direction of the movable cylinder, it will be inserted into the foundation or pulled out from the foundation. By setting the spiral drill bit, compared with the rod-shaped structure such as the plug-in rod, its own tip part and spiral part can be inserted into the foundation more smoothly.

[0024] Optionally, a caster is connected to the protective plate, and the spiral drill head is located on a side of the connecting rod close to the caster.

[0025] By adopting the above technical solution, since the insertion of the connecting rod or the spiral drill bit into the foundation is achieved by rotating the protective plate connected to the movable cylinder, casters are provided on the protective plate to facilitate personnel to push the protective plate to rotate; furthermore, when the entire protective device needs to be moved to another position, the provision of casters can also facilitate personnel to move the entire protective device.

[0026] Optionally, when two adjacent protective plates are in a folded parallel state, the casters on the two adjacent protective plates are staggered.

[0027] By adopting the above technical solution, when the protective device is in the folded state, the protective plates in the parallel folded state are more convenient to stack and transport, and the staggered casters will not interfere with each other, thereby ensuring that two adjacent protective plates can be folded to a parallel state.

[0028] Optionally, a counterweight bar is provided at one end of the protective plate close to the caster.

[0029] By adopting the above technical solution, a counterweight bar is set at the end of the protective plate close to the caster, that is, the counterweight bar is located at the lower end of the protective plate, so that the protective plate forms a structure with heavy bottom and light top, which can reduce the occurrence of the protective plate tipping over.

[0030] Optionally, the counterweight bar is embedded in the protective plate.

[0031] By adopting the above technical solution, the counterweight bar is embedded in the protective plate, and there is no need to install the counterweight bar outside the protective plate. This can improve the flatness of the outside of the protective plate and reduce collisions with people.

[0032] Optionally, the protective plate is a telescopic plate to change the length of the protective plate between two adjacent connecting components.

[0033] By adopting the above technical solution, by setting the protective plate as a telescopic plate, the protective plate can be adjusted to different lengths, so that protective areas of different sizes can be enclosed, which effectively improves the versatility of the protective plate.

[0034] Optionally, the protective plate is provided with at least one caster on each side of the protective plate's extension and retraction direction.

[0035] By adopting the above technical solution, when casters are provided on both sides of the protective plate, the stability of the casters supporting the protective plate can be effectively improved.

[0036] In summary, this application includes at least one of the following beneficial technical effects:

[0037] 1. This application provides a plug-in rod that can be inserted into the foundation, which can improve the firmness between the protective device and the foundation. Furthermore, by utilizing the rotation of the movable cylinder and the cooperation of the pressing assembly, the plug-in rod can be inserted into the foundation, which can facilitate personnel to perform operations.

[0038] 2. By providing a guide seat connected to the fixed cylinder and cooperating with the pushing action of the pushing piece, personnel only need to rotate the protective plate connected to the movable cylinder and can insert the plug rod into the foundation without performing other operations, which effectively improves the efficiency of fixing the protective device to the foundation;

[0039] 3. By setting up a spiral drill bit, compared with a rod-shaped structure such as a plug-in rod, its own tip part and spiral part can be inserted into the foundation more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application, which is intended to illustrate the state of multiple protective plates supporting the enclosure;

[0041] Figure 2 2 is a schematic diagram of the cross-sectional structure of the protective plate in an embodiment of the present application;

[0042] Figure 3 This is a schematic structural diagram of the connecting assembly and the pressing assembly in an embodiment of the present application;

[0043] Figure 4 It is a structural diagram of the plug-in assembly in an embodiment of the present application.

[0044] Explanation of the accompanying reference numerals: 1. Protective plate; 11. Fixed plate; 111. Plug-in slot; 12. Movable plate; 13. Locking member; 14. Counterweight bar; 15. Mounting frame; 16. Caster; 2. Connecting assembly; 21. Fixed cylinder; 211. Rotating slot; 22. Movable cylinder; 221. Rotating ring; 222. Slide slot; 23. Elastic member; 3. Plug-in assembly; 31. Limit seat; 311. Limit hole; 32. Plug-in rod; 33. Auger bit; 34. Sliding member; 4. Press-down assembly; 41. Guide seat; 411. Dovetail groove; 42. Push member; 421. Sliding ball. DETAILED DESCRIPTION

[0045] The following is combined with Figure 1-4 This application is described in further detail.

[0046] The embodiment of the present application discloses a protective device for deep foundation pit construction of a building. Figure 1 The protective device for deep foundation pit construction of building construction includes a protective plate 1, a connecting component 2, a plug-in component 3 and a pressing component 4. Two adjacent protective plates 1 are rotatably connected through the connecting component 2, and the plug-in component 3 is connected to the connecting component 2 to fix the connecting component 2 to the ground.

[0047] Reference Figure 1 and Figure 2The protective plate 1 is a telescopic plate. The protective plate 1 includes a fixed plate 11, a movable plate 12 and a locking member 13. The fixed plate 11 and the movable plate 12 are both placed vertically. The side wall of the fixed plate 11 is provided with a plug-in slot 111. The movable plate 12 can slide along the fixed plate 11 in the plug-in slot 111 to change the length of the protective plate 1; the locking member 13 is a butterfly bolt, which is threadedly connected to the fixed plate 11, and the locking member 13 passes through the side wall of the fixed plate 11 and is pressed against the outer wall of the movable plate 12, so that the fixed plate 11 and the movable plate 12 are pressed and fixed by the locking member 13.

[0048] Reference Figure 2 In order to increase the weight of the bottom of the protective plate 1 and reduce the occurrence of the protective plate 1 falling down, a counterweight bar 14 is provided on the protective plate 1. Specifically, a counterweight bar 14 is embedded in the bottom of the fixed plate 11 and the movable plate 12.

[0049] Reference Figure 2 In order to facilitate personnel to move the protective plate 1, a mounting bracket 15 is fixedly connected to the bottom wall of the fixed plate 11 and the movable plate 12, and two casters 16 are installed on the mounting bracket 15 by screws. The fixed plate 11 is located at an upper position between the two casters 16 on the mounting bracket 15, and the movable plate 12 is located at an upper position between the two casters 16 on the mounting bracket 15; in order to avoid interference between the casters 16 and the fixed plate 11, so that the movable plate 12 can be inserted into the fixed plate 11, the mounting bracket 15 is located on the side where the fixed plate 11 and the movable plate 12 are away from each other; and, in order to enable the two protective plates 1 to be in a parallel state, the casters 16 on different protective plates 1 do not interfere with each other, when installing the casters 16, it is necessary to ensure that when at least two protective plates 1 are parallel, the casters 16 on different protective plates 1 are staggered.

[0050] Reference Figure 2 and Figure 3 The two adjacent protective plates 1 are connected by a connecting assembly 2, and the connecting assembly 2 includes two fixed cylinders 21 and a movable cylinder 22. The movable cylinder 22 is located between the two fixed cylinders 21, and each end of the movable cylinder 22 is coaxially rotatably connected to a fixed cylinder 21; in order to realize the rotation connection of the fixed cylinder 21 and the movable cylinder 22, the two end walls of the movable cylinder 22 are coaxially welded with a rotating ring 221, and the longitudinal section of the rotating ring 221 is dovetail-shaped, and the end wall of the fixed cylinder 21 is coaxially provided with a rotating groove 211 for accommodating the rotating ring 221, and the rotating ring 221 can rotate along the fixed cylinder 21 in the rotating groove 211; when the protective plate 1 is placed vertically, the axes of the fixed cylinder 21 and the movable cylinder 22 are both vertically arranged; the side wall of the movable plate 12 is welded with a movable cylinder 22, and the side wall of the fixed plate 11 has two fixed cylinders 21 welded to enable the adjacent two protective plates 1 to be rotatably connected through the connecting assembly 2; in order to enable the adjacent two protective plates 1 to rotate to a parallel state, in this embodiment, it is preferred that the maximum thickness of the protective plate 1 is less than half of the outer diameter of the fixed cylinder 21.

[0051] Reference Figure 3 and Figure 4 The plug-in assembly 3 includes a limit seat 31 and a plug rod 32. The limit seat 31 is welded to the inner wall of the movable cylinder 22. A limit hole 311 is formed on the limit seat 31 along the axial direction of the movable cylinder 22. The plug rod 32 is passed through the limit hole 311. There is a clearance fit between the outer diameter of the plug rod 32 and the inner diameter of the limit hole 311, so that the plug rod 32 can rotate in the limit hole 311 and slide in the limit hole 311 along the axial direction of the movable cylinder 22; in order to facilitate insertion into the ground, a spiral drill bit 33 is coaxially welded at the bottom end of the plug rod 32. The spiral drill bit 33 is easier to insert into the ground during the downward rotation process than the plug rod 32.

[0052] Reference Figure 4 A sliding part 34 is welded to the side wall of the connecting rod 32, and the sliding part 34 is located on the side of the limit seat 31 away from the spiral drill bit 33; a sliding groove 222 is opened on the inner wall of the movable cylinder 22 along its own axial direction, and the end of the sliding part 34 away from the connecting rod 32 is located in the sliding groove 222, and can slide in the sliding groove 222 along the axial direction of the movable cylinder 22, so that the sliding of the sliding part 34 is guided by the groove wall of the sliding groove 222.

[0053] Reference Figure 4 The cam 32 is pressed against the top of the cam 32 and the cam 33 is pressed against the top of the cam 32. When the cam 32 is pressed against the top of the cam 32, the cam 33 is pressed against the top of the cam 32. When the cam 32 is pressed against the top of the cam 32, the cam 33 is pressed against the top of the cam 32.

[0054] Reference Figure 3 and Figure 4, the pressing assembly 4 is connected to the fixed cylinder 21, and the fixed cylinder 21 connected to the pressing assembly 4 is located on the side of the sliding member 34 away from the limit seat 31; the pressing assembly 4 includes a guide seat 41 and a push member 42; the guide seat 41 is coaxially fixed to the inner wall of the fixed cylinder 21 in a spiral shape, and the projection of the guide seat 41 along the axis direction of the fixed cylinder 21 is an arc shape with an unclosed port; a dovetail groove 411 is provided on the side of the guide seat 41 close to the plug-in rod 32, and the direction of the dovetail groove 411 is consistent with the spiral direction of the guide seat 41; the push member 42 is L-shaped, and the push member 4 2 is welded to the plug rod 32, and the vertical section of the push piece 42 extends to the dovetail groove 411. A spherical sliding ball 421 is welded to one end of the vertical section of the push piece 42 close to the dovetail groove 411. The sliding ball 421 is located in the dovetail groove 411 and can slide along the guide seat 41 in the dovetail groove 411. In order to ensure that the sliding ball 421 can drive the plug rod 32 to rotate along the limit seat 31 during the sliding process, the sliding ball 421 is located on the side of the axis of the plug rod 32, that is, the sliding ball 421 is eccentrically arranged compared to the plug rod 32.

[0055] Reference Figure 3 and Figure 4 In the folded state, the two adjacent protective plates 1 are parallel to each other. At this time, the sliding ball 421 is located at the end of the guide seat 41 away from the limit seat 31; when the two adjacent protective plates 1 are rotated to an open state of 90° or a larger angle, the sliding ball 421 gradually slides toward the side of the limit seat 31 in the dovetail groove 411, and the push piece 42 and the connecting rod 32 will move synchronously with the sliding ball 421, and the spiral drill bit 33 will move toward the side away from the limit seat 31 while rotating, so that the spiral drill bit 33 can be inserted into the ground.

[0056] The implementation principle of a protective device for deep foundation pit construction of a building in an embodiment of the present application is: when supporting the protective device at the construction site, first determine the position of the first protective plate 1, and unscrew the locking piece 13 on the first protective plate 1 to adjust the first protective plate 1 to the required length.

[0057] When the second guard plate 1 is rotated, the movable plate 12 in the second guard plate 1 will rotate with the second guard plate 1. When the movable plate 12 rotates, the sliding member 34 will be driven to rotate synchronously, and the sliding member 34 will drive the connecting rod 32 to rotate synchronously; when the connecting rod 32 rotates, the pushing member 42 and the sliding ball 421 will be driven to rotate synchronously. During this process, the sliding ball 421 will slide in the dovetail groove 411 on the guide seat 41. As the sliding ball 421 slides, the connecting rod 32 will be driven up and down by the pushing member 42. At the same time, the connecting rod 32 will rotate with the sliding member 34 and the movable cylinder 22. Therefore, when the connecting rod 32 slides downward and rotates, the auger bit 33 will be driven to rotate and insert into the foundation. When the connecting rod 32 slides upward and rotates, the auger bit 33 will be driven to rotate and pull out from the foundation.

[0058] According to the above-mentioned plug-in method, all protective plates 1 only need to be fixed to the foundation in the above-mentioned manner. At the interface between the first protective plate 1 and the last protective plate 1, the fixed plate 11 in one protective plate 1 and the movable plate 12 in the other protective plate 1 can be fixed with pins or bolts. This fixing method can conveniently and quickly enclose multiple protective plates 1 to form the required polygon, which has the advantages of convenience, speed and high adaptability when working on the construction site.

[0059] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A protective device for deep foundation pit construction of building construction, characterized in that: It comprises a protective plate (1), a connecting component (2), a plug-in component (3) and a pressing component (4); The connecting assembly (2) comprises a fixed cylinder (21) and a movable cylinder (22), wherein the fixed cylinder (21) is coaxially rotatably connected to one end of the movable cylinder (22); Of the two adjacent protective plates (1), one of the protective plates (1) is fixedly connected to the fixed cylinder (21), and the other protective plate (1) is fixedly connected to the movable cylinder (22); The plug-in assembly (3) comprises a limiting seat (31) and a plug-in rod (32); The limiting seat (31) is fixedly connected to the movable cylinder (22), and a limiting hole (311) is formed through the limiting seat (31); The plug-in rod (32) is coaxially arranged in the movable cylinder (22), and the plug-in rod (32) is passed through the limiting hole (311), so that the plug-in rod (32) can rotate along the limiting seat (31) and can slide on the limiting seat (31) along the long side direction of the movable cylinder (22); A sliding member (34) is fixedly connected to the plug rod (32), and the sliding member (34) is slidably connected to the movable cylinder (22) along the long side direction of the movable cylinder (22); The pressing assembly (4) is used to make the plug rod (32) slide along the long side direction of the movable cylinder (22); The pressing assembly (4) comprises a guide seat (41) and a push member (42); The guide seat (41) is fixedly connected to the inner wall of the fixed cylinder (21) in a spiral shape; One end of the push member (42) is connected to the guide seat (41) in a spiral circumferential sliding manner, and the other end is eccentrically fixedly connected to the plug rod (32), so that the push member (42) can drive the plug rod (32) to slide along the axial direction of the movable cylinder (22) during the sliding process along the guide seat (41).

2. A protective device for deep foundation pit construction of building construction according to claim 1, characterized in that: The invention also includes an elastic member (23), wherein the elastic member (23) is located between the sliding member (34) and the limiting seat (31), the elastic expansion and contraction direction of the elastic member (23) is consistent with the sliding direction of the sliding member (34), and the elastic member (23) has a force to push the sliding member (34) toward the side of the guide seat (41) in a deformed state.

3. A protective device for deep foundation pit construction of building construction according to claim 2, characterized in that: One end of the plug rod (32) away from the push member (42) is coaxially fixedly connected to a spiral drill bit (33).

4. A protective device for deep foundation pit construction of building construction according to claim 3, characterized in that: A caster (16) is connected to the protective plate (1), and the spiral drill head (33) is located on a side of the plug rod (32) close to the caster (16).

5. A protective device for deep foundation pit construction of building construction according to claim 4, characterized in that: When two adjacent protective plates (1) are in a folded and parallel state, the casters (16) on the two adjacent protective plates (1) are staggered.

6. A protective device for deep foundation pit construction of building construction according to claim 5, characterized in that: A counterweight bar (14) is provided at one end of the protective plate (1) close to the caster (16).

7. A protective device for deep foundation pit construction of building construction according to claim 6, characterized in that: The counterweight bar (14) is embedded in the protective plate (1).

8. A protective device for deep foundation pit construction of building construction according to claim 6, characterized in that: The protective plate (1) is a telescopic plate, so as to change the length of the protective plate (1) between two adjacent connecting components (2).

9. A protective device for deep foundation pit construction of building construction according to claim 8, characterized in that: The protective plate (1) is provided with at least one caster (16) on each side of the protective plate (1) in its extension and retraction direction.

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