Foundation pit safety protection device for building construction site

Abstract

The utility model belongs to the technical field of foundation pit protection devices, and discloses a building construction site foundation pit safety protection device which comprises a supporting piece horizontally fixed to the ground, two supporting rods are symmetrically and fixedly connected to the top of the supporting piece, a shielding piece is arranged above the supporting piece, one side of the shielding piece is open to form a clamping groove matched with the supporting rods, and the other side of the shielding piece is open to form a clamping groove matched with the supporting rods. The blocking piece is clamped with the supporting rod through the clamping groove, the blocking piece is connected with the supporting rod, the movable plate is pulled to move through the reset spring, the blocking piece is clamped with the supporting rod through the clamping groove, and therefore the blocking piece and the supporting rod can be fixed. When the device needs to be disassembled and recycled, only the moving plate and the limiting rod need to be pulled to move, the shielding piece and the supporting rod can be separated and recycled, a plurality of bolts do not need to be screwed for fixation when the device is installed, the installation difficulty is low, and the installation efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of foundation pit protection devices, and in particular relates to a safety protection device for a foundation pit in a construction site. Background Art

[0002] In building construction, foundation pit excavation is a common engineering activity. In the process of excavation, if there is a lack of necessary protective measures, safety accidents are prone to occur. In order to reduce the probability of safety accidents, it is necessary to use safety protection devices to shield and protect the periphery of the foundation pit. However, the existing devices have certain defects when used. For example, in the announcement number "CN217812767 U" discloses a building foundation pit protection device, including a guardrail and a column, the column is fixedly connected to both sides of the guardrail, the lower end of the column is fixed to the ground by bolts, and the base of the guardrail is close to the ground; a guardrail support device is provided on the inner side of the guardrail (located on one side of the foundation pit); the guardrail support device includes a top support plate and support legs; the top support plate is laterally located at the upper inner side of the guardrail, and is fixed to the guardrail by a clamping plate located on the outer side of the guardrail and a fastening bolt connecting the top support plate and the clamping plate; there are two support legs, which are respectively located at the two ends of the top support plate, the support legs are inclined to the ground, the upper ends of the support legs are connected to the top support plate by a buffer device, and the lower ends are fixed to the ground. The buffer device includes a spring mounting seat fixedly connected to the two ends of the bottom surface of the top support plate, the spring mounting seat has a square groove opening downward, two springs spaced apart from each other are installed on the bottom surface of the groove, the upper end of the supporting leg has a boss, the upper part of the boss is placed between the two springs spaced apart from each other, the top surface of the boss is 200mm away from the bottom surface of the groove of the spring mounting seat, the distance between the bottom surface of the boss and the lower edge of the spring mounting seat is not less than the distance between the top surface of the boss and the bottom surface of the groove of the spring mounting seat, the lower end of the spring is connected to the bottom surface of the boss, although the device can protect the periphery of the foundation pit when used, it needs to screw multiple bolts for fixing when installing the device, so the installation is difficult, and after the project is completed, it takes a lot of time to disassemble multiple bolts before the device can be disassembled, which increases the difficulty of recovering the device. Utility Model Content

[0003] The purpose of the utility model is to provide a safety protection device for a foundation pit of a building construction so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safety protection device for a construction foundation pit, comprising a support member horizontally fixed on the ground, two support rods being symmetrically fixedly connected to the top of the support member, and a shielding member being arranged above the support member, one side of the shielding member being open to form a slot matching the support rod, and both symmetrical sides of the shielding member are provided with limiting members that can reciprocate relative to the shielding member, and a part of the limiting member moves through between the shielding member and the support rod.

[0005] Preferably, the limiting member comprises a movable plate, a return spring is fixedly connected between the movable plate and the shielding member, and a limiting rod is fixedly connected to the side of the movable plate facing the shielding member, and the free end of the limiting rod moves through the shielding member and the support rod.

[0006] Preferably, the support member includes a base frame, and side panels are fixedly connected to the symmetrical sides of the base frame. Limiting screws are arranged on the side panels. The bottom of the support rod is fixedly connected to the top of the base frame, and a first limiting hole matching the limiting rod is opened on the support rod.

[0007] Preferably, a plurality of protruding rods are fixedly connected to the bottom of the base frame, and the bottoms of the protruding rods protrude outward to form sharp protrusions.

[0008] Preferably, a connecting rod is fixedly connected to one side of the base frame, and a connecting hole is recessed on the other side. The connecting rod and the connecting hole are located between two side plates, and the connecting hole matches the connecting rod.

[0009] Preferably, the shielding member comprises a blocking frame, the clamping slot is formed on one side of the blocking frame, a second limiting hole communicating with the clamping slot is formed on the blocking frame, and the second limiting hole matches with the limiting rod.

[0010] Preferably, the second limiting hole and the first limiting hole are on the same horizontal plane.

[0011] Preferably, a through-type installation groove is provided on the retaining frame, and a plurality of support rods are vertically fixedly connected inside the installation groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model connects the shielding member to the support rod by engaging the card slot with the support rod, and pulls the movable plate to move by the reset spring, so that the movable plate drives the limit rod to be inserted between the support rod and the shielding member. When the device needs to be disassembled and recovered, it is only necessary to pull the movable plate and the limit rod to move, so that the shielding member and the support rod can be separated and recovered, and there is no need to tighten multiple bolts for fixing when installing the device, so the installation difficulty is low and the installation efficiency is high.

[0014] (2) After the device is installed, the top plate plug rod is pulled to slide along the slot until the top plate moves to the height required by the personnel, and the adjustment screw on one side of the plug rod is turned to make the adjustment screw contact the support rod, thereby fixing the top plate at the height required by the personnel. The height of the device can also be adjusted after installation, thereby increasing the use range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of the present utility model when in use;

[0016] Figure 2 It is one of the three-dimensional diagrams of the utility model;

[0017] Figure 3 This is the second stereogram of the utility model;

[0018] Figure 4 It is a front view of the utility model;

[0019] Figure 5 This is a three-dimensional diagram after adjustment of the utility model;

[0020] Figure 6 It is a three-dimensional diagram of the support member of the utility model;

[0021] Figure 7 A three-dimensional diagram of the support member of the utility model with the support rod removed;

[0022] Figure 8 This is an exploded view of the shielding member of the utility model;

[0023] Fig. 9 It is a three-dimensional diagram of the limiting member of the utility model;

[0024] Fig.10 A three-dimensional diagram of the base frame of the utility model;

[0025] In the figure: 1. support member; 11. base frame; 12. connecting rod; 13. support rod; 14. first limit hole; 15. side plate; 16. limit screw; 17. connecting hole; 18. protruding rod; 2. shielding member; 21. blocking frame; 22. second limit hole; 23. mounting groove; 24. support rod; 25. plug rod; 26. adjusting screw; 27. top plate; 28. handle; 29. ​​slot; 210. side slot; 211. card slot; 3. limit member; 31. movable plate; 32. limit rod; 33. reset spring. DETAILED DESCRIPTION

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

[0027] See also Figure 1-Figure 10 The utility model provides the following technical solutions:

[0028] A safety protection device for a foundation pit in a construction project comprises a support member 1 fixed horizontally on the ground, two support rods 13 are symmetrically fixedly connected to the top of the support member 1, and a shielding member 2 is arranged above the support member 1, one side of the shielding member 2 is open to form a slot 211 matching the support rod 13, and both sides of the shielding member 2 are symmetrically provided with limiting members 3 that can reciprocate relative to the shielding member 2, and a part of the limiting member 3 moves through between the shielding member 2 and the support rod 13.

[0029] Through the above technical solution, before the foundation pit protection process is carried out, the support member 1 is placed near the foundation pit and fixed. After fixing, the shielding member 2 is placed on one side of the support member 1 so that the support rod 13 is engaged with the slot 211, and when the support rod 13 is engaged with the slot 211, a part of the limit member 3 is inserted between the shielding member 2 and the support rod 13, thereby fixing the shielding member 2 and the support rod 13. According to the above steps, the device is installed in sequence to complete the protection of the foundation pit. When the device needs to be disassembled, the limit member 3 is pulled to separate the limit member 3 from the shielding member 2 and the support rod 13, the shielding member 2 can be removed, and then the support member 1 is disassembled to complete the recovery of the device.

[0030] Specifically, in one embodiment, regarding the above-mentioned limiter 3:

[0031] like Figure 1-Figure 5 and Fig. 9 As shown, the limiting member 3 includes a movable plate 31, a return spring 33 is fixedly connected between the movable plate 31 and the shielding member 2, and a limiting rod 32 is fixedly connected to the side of the movable plate 31 facing the shielding member 2, and the free end of the limiting rod 32 moves through the shielding member 2 and the support rod 13.

[0032] In this embodiment, when the shielding member 2 is engaged with the support rod 13 through the slot 211, the support rod 13 will squeeze the limit rod 32, causing the limit rod 32 to move, and the limit rod 32 will stretch the reset spring 33 when it moves. When the slot 211 is fully engaged with the support rod 13, the reset spring 33 is reset and drives the movable plate 31 to move back, so that the movable plate 31 drives the limit rod 32 to move, and then the limit rod 32 is inserted between the shielding member 2 and the support rod 13, thereby fixing the shielding member 2 and the support rod 13. When the shielding member 2 needs to be removed, it is only necessary to pull the movable plate 31 to move, so that the movable plate 31 drives the limit rod 32 to separate from the shielding member 2 and the support rod 13, and the shielding member 2 can be removed.

[0033] In addition, in the present invention, regarding the above-mentioned support member 1:

[0034] like Figure 1-Figure 7As shown, the support member 1 includes a base frame 11, and side panels 15 are fixedly connected on both symmetrical sides of the base frame 11. Limiting screws 16 are provided on the side panels 15. The bottom of the support rod 13 is fixedly connected to the top of the base frame 11, and a first limiting hole 14 matching the limiting rod 32 is opened on the support rod 13.

[0035] In this embodiment, when the support member 1 needs to be fixed, the base frame 11 is placed at the position to be fixed, and then the limit screw 16 is passed through the side plate 15 and rotated so that the limit screw 16 contacts the side plate 15, thereby fixing the side plate 15 and the base frame 11. The support rod 13 is supported by the base frame 11. When the support rod 13 is engaged with the slot 211, the shielding member 2 can be fixed by inserting the limit rod 32 between the support rod 13 and the slot 211.

[0036] When the base frame 11 is installed, in order to make the base frame 11 more secure after installation, Figure 4 As shown, a plurality of protruding rods 18 are fixedly connected to the bottom of the base frame 11, and the bottom of the protruding rods 18 protrude outward to form sharp protrusions. When the base frame 11 is fixed, the protruding rods 18 cooperate with the sharp protrusions to make the base frame 11 more secure after being fixed.

[0037] Furthermore, in the present invention, in order to further improve the fastness of the installation of the base frame 11, as Figure 1-Figure 7 As shown, a connecting rod 12 is fixedly connected to one side of the base frame 11 , and a connecting hole 17 is formed inwardly on the other side. The connecting rod 12 and the connecting hole 17 are located between the two side plates 15 , and the connecting hole 17 matches the connecting rod 12 .

[0038] In this embodiment, before the base frame 11 is installed, the connecting rod 12 is screwed into the connecting hole 17. According to this step, the required number of base frames 11 are connected in sequence, thereby adjusting the length of the base frame 11 and making the base frame 11 more stable after being fixed.

[0039] Specifically, in one embodiment, regarding the shielding member 2:

[0040] like Figure 1-Figure 5 , Figure 8 , Fig.10 As shown, the shielding member 2 includes a shielding frame 21, a slot 211 is formed on one side of the shielding frame 21, a second limiting hole 22 communicating with the slot 211 is formed on the shielding frame 21, and the second limiting hole 22 matches the limiting rod 32;

[0041] The second limiting hole 22 and the first limiting hole 14 are located on the same horizontal plane.

[0042] In this embodiment, when the retaining frame 21 needs to be installed, the support rod 13 is supported by the base frame 11, and the retaining frame 21 is engaged with the support rod 13 through the slot 211, and the return spring 33 is supported by the retaining frame 21, and the movable plate 31 is supported by the return spring 33, and the limiting rod 32 is driven to move by the movable plate 31, and then the limiting rod 32 is inserted between the second limiting hole 22 and the first limiting hole 14, thereby fixing the retaining frame 21 and the support rod 13.

[0043] In order to reduce the mass of the baffle 21, as Figure 1-Figure 5 , Figure 8 , Fig.10 As shown, a through-type installation slot 23 is formed on the retaining frame 21 , and a plurality of support rods 24 are vertically fixedly connected inside the installation slot 23 .

[0044] In addition, in order to allow the height of the device to be adjusted according to the construction scene, such as Figure 1-Figure 5 , Figure 8 As shown, a slot 29 is formed between the top of the retaining frame 21 and the support rod 24, and an insertion rod 25 is slidably connected inside the slot 29. A top plate 27 is fixedly connected between the tops of multiple insertion rods 25. One side of the support rod 24 is open to form a side groove 210. An adjusting screw 26 is arranged inside the side groove 210, and the free end of the adjusting screw 26 is screwed and connected to one side of the insertion rod 25.

[0045] In this embodiment, after the device is installed, the top plate 27 is pulled so that the top plate 27 drives the insertion rod 25 to move inside the slot 29 until the top plate 27 and the insertion rod 25 move to the position at the height required by the personnel, and the adjusting screw 26 on one side of the insertion rod 25 is rotated so that the adjusting screw 26 passes through the side groove 210 and is screwed together with the insertion rod 25 until the adjusting screw 26 contacts the support rod 24, thereby fixing the height of the insertion rod 25 and the top plate 27, and adjusting the device to the height required by the personnel.

[0046] In addition, in the present invention, in order to facilitate the adjustment of the height of the top plate 27, Figure 1-Figure 5 and Figure 8 As shown, handles 28 are fixedly connected to both symmetrical sides of the top plate 27 .

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety protection device for a construction foundation pit, characterized in that: The invention comprises a support member (1) fixed horizontally on the ground, two support rods (13) being symmetrically fixedly connected to the top of the support member (1), a shielding member (2) being arranged above the support member (1), one side of the shielding member (2) being open to form a slot (211) matching the support rod (13), and limiting members (3) being arranged on both symmetrical sides of the shielding member (2) for reciprocating movement relative to the shielding member (2), and a part of the limiting member (3) moving through between the shielding member (2) and the support rod (13).

2. A construction foundation pit safety protection device according to claim 1, characterized in that: The limiting member (3) comprises a movable plate (31), a return spring (33) being fixedly connected between the movable plate (31) and the shielding member (2), and a limiting rod (32) being fixedly connected to one side of the movable plate (31) facing the shielding member (2), the free end of the limiting rod (32) movingly passing through the shielding member (2) and the support rod (13).

3. A construction foundation pit safety protection device according to claim 2, characterized in that: The support member (1) comprises a base frame (11), the base frame (11) is symmetrically fixedly connected to side plates (15) on both sides, the side plates (15) are provided with limit screws (16), the bottom of the support rod (13) is fixedly connected to the top of the base frame (11), and the support rod (13) is provided with a first limit hole (14) matching the limit rod (32).

4. A construction foundation pit safety protection device according to claim 3, characterized in that: A plurality of protruding rods (18) are fixedly connected to the bottom of the base frame (11), and the bottoms of the protruding rods (18) are protruding outwards to form sharp protrusions.

5. A construction foundation pit safety protection device according to claim 3, characterized in that: A connecting rod (12) is fixedly connected to one side of the base frame (11), and a connecting hole (17) is recessed on the other side. The connecting rod (12) and the connecting hole (17) are located between two side plates (15), and the connecting hole (17) matches the connecting rod (12).

6. A construction foundation pit safety protection device according to claim 3, characterized in that: The shielding member (2) comprises a blocking frame (21), the clamping slot (211) is formed on one side of the blocking frame (21), a second limiting hole (22) communicating with the clamping slot (211) is provided on the blocking frame (21), and the second limiting hole (22) matches the limiting rod (32).

7. A construction foundation pit safety protection device according to claim 6, characterized in that: The second limiting hole (22) and the first limiting hole (14) are located on the same horizontal plane.

8. A construction foundation pit safety protection device according to claim 6, characterized in that: The retaining frame (21) is provided with a through-type installation groove (23), and a plurality of support rods (24) are vertically fixedly connected inside the installation groove (23).

9. A construction foundation pit safety protection device according to claim 8, characterized in that: A slot (29) is formed between the top of the retaining frame (21) and the support rod (24), and an insertion rod (25) is slidably connected inside the slot (29). A top plate (27) is fixedly connected between the tops of a plurality of the insertion rods (25). One side of the support rod (24) is open to form a side groove (210), and an adjusting screw (26) is arranged inside the side groove (210), and the free end of the adjusting screw (26) is screwed and connected to one side of the insertion rod (25).

10. A construction foundation pit safety protection device according to claim 9, characterized in that: Handles (28) are fixedly connected to both symmetrical sides of the top plate (27).

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