Foundation pit protection device

Abstract

The utility model relates to the technical field of foundation pit protection, in particular to a foundation pit protection device which comprises a stand column, an installation mechanism and two installation blocks are fixed on the stand column, an insertion rod is connected to the installation blocks in a clamped mode, a protection mechanism is fixed to the insertion rod, and a limiting mechanism is arranged on the stand column in a rotating mode. The limiting mechanism comprises a lead screw and an abutting rod, the lead screw is rotationally connected to the stand column, the abutting rod is in threaded connection to the lead screw, two sliding blocks symmetrically abut against the abutting rod, the sliding blocks are sleeved with telescopic springs, abutting blocks are fixedly connected to the sliding blocks, and the abutting blocks abut against the inserting rods. The lead screw rotates to drive the abutting rod to move upwards, the sliding block drives the abutting block to slide under the counter-acting force of the telescopic spring, then the abutting block is separated from the inserting rod, and therefore the inserting rod can be conveniently detached from the installing block, and the protective fence can be conveniently disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to a protective device, in particular to a foundation pit protective device, belonging to the technical field of foundation pit protection. Background Art

[0002] Foundation pit guardrail refers to the protective railings installed around the construction foundation pit. Its main function is to isolate the foundation pit from the surrounding environment, prevent people or objects from falling into the foundation pit, and ensure the safety of the construction process. Foundation pit guardrails are generally made of steel pipes, steel plates, wire mesh and other materials. They have a stable structure and strong bearing capacity and protective effect.

[0003] However, when protecting the foundation pit by means of fences, multiple fences must be assembled together. When being assembled at a corner, the fence connection parts are generally limited by fixing bolts. During the disassembly and assembly process, the fixing bolts must be stored separately, which makes disassembly more complicated and inconvenient for quick disassembly and assembly of the fence. Utility Model Content

[0004] The purpose of the utility model is to provide a foundation pit protection device in order to solve the above-mentioned problem. The screw rod rotates to drive the push rod to move upward, so that the slider drives the push block to slide under the reaction force of the telescopic spring, and then the push block is separated from the insertion rod, thereby facilitating the removal of the insertion rod from the installation block, which is beneficial to the disassembly and assembly of the guardrail.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: a foundation pit protection device, including a column, a mounting mechanism and two mounting blocks are fixed on the column, a plug rod is snap-connected on the mounting block, a protection mechanism is fixed on the plug rod, a rotational limiting mechanism is provided on the column, the limiting mechanism includes a screw rod and a resist rod, the column is rotationally connected with a screw rod, the screw rod is threadedly connected with a resist rod, two sliders are symmetrically abutted on the resist rod, a telescopic spring is sleeved on the slider, a resist block is fixedly connected to the slider, and the resist block abuts against the plug rod.

[0006] Preferably, the support rod is slidably connected to the column, and the bottom end of the support rod is arranged in an arc surface structure.

[0007] Preferably, the end of the slider in contact with the stop rod is arranged in an arc surface structure, and the slider is slidably connected to the column.

[0008] Preferably, the insertion rod is arranged in an L-shaped structure, and the stop block is slidably connected to the column.

[0009] Preferably, the mounting mechanism comprises a top cover and an empty slot, the top end of the column is snap-connected with the top cover, the column is provided with an empty slot, and the bottom end of the column is fixedly connected with a base.

[0010] Preferably, the empty slot is located inside the column close to the top cover, and a screw rod is rotated in the empty slot.

[0011] Preferably, the protective mechanism includes a second guardrail and a rotating rod, the second guardrail is fixedly connected to the insertion rod, the second guardrail is rotatably connected to the rotating rod, the second bevel gear is fixedly connected to the rotating rod, the second bevel gear is meshed with the first bevel gear, the first bevel gear is fixedly connected to a screw, the first guardrail is threadedly connected to the screw, and the second guardrail is fixedly installed with a sliding rod.

[0012] Preferably, the sliding rod is located on the inner wall of the second guardrail away from the screw rod, and the first guardrail is slidably connected to the sliding rod.

[0013] Preferably, the screw rod is rotationally connected to the second guardrail, and the first guardrail is slidingly connected to the second guardrail.

[0014] Preferably, the two mounting blocks are symmetrically fixed on the side walls of the column, and the two insertion rods are symmetrically fixed on the side walls of the second guardrail.

[0015] The beneficial effect of the utility model is that when installing the guardrail, the operator can place the column and the installation mechanism on the ground, and then put the plug rod fixed on the protective mechanism into the two installation blocks fixed on both sides of the column. When the plug rod contacts the top of the installation block, the operator can use a tool to rotate the screw rod, and the screw rod is threadedly connected with a push rod. When the push rod slides along the inner wall of the column, the push rod can contact the end of the slider set on both sides. The contact ends of the slider and the push rod are both arranged in an arc structure. The slider is squeezed by the squeezing force of the push rod to squeeze the telescopic spring sleeved on its side wall. When the telescopic spring is in a compressed state, the slider can drive the push block to slide out of the column, and the push block contacts the top of the plug rod, which is convenient for limiting the plug rod, thereby facilitating the disassembly and assembly of the protective mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A shown;

[0018] Figure 3 This is a schematic diagram of the connection structure of the second guardrail and the plug rod of the utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure of the column and the base of the utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure of the first guardrail and the sliding rod of the utility model;

[0021] Figure 6 for Figure 5 The enlarged structural diagram of part B is shown;

[0022] Figure 7 for Figure 5 The enlarged structural diagram of the C part is shown;

[0023] Figure 8 for Figure 5 The enlarged structural diagram of the D part shown;

[0024] Fig. 9 It is a schematic diagram of the connection structure of the second guardrail and the screw rod of the utility model.

[0025] In the figure: 1. protection mechanism; 101. first guardrail; 102. second guardrail; 103. rotating rod; 104. sliding rod; 105. screw rod; 106. first bevel gear; 107. second bevel gear; 2. column; 3. mounting mechanism; 301. top cover; 302. base; 303. empty slot; 4. limiting mechanism; 401. stop block; 402. screw rod; 403. stop rod; 404. sliding block; 405. telescopic spring; 5. plug rod; 6. mounting block. 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 1-9 As shown, a foundation pit protection device includes a column 2, on which a mounting mechanism 3 and two mounting blocks 6 are fixed, on which the mounting block 6 is snap-connected with an insertion rod 5, on which a protection mechanism 1 is fixed, and on which a rotational limiting mechanism 4 is provided on the column 2, wherein the limiting mechanism 4 includes a screw rod 402 and a stop rod 403, on which a screw rod 402 is rotationally connected, on which a stop rod 403 is threadedly connected, on which two sliders 404 are symmetrically abutted, on which a telescopic spring 405 is sleeved, and on which a stop block 401 is fixedly connected, and which abuts against the insertion rod 5.

[0028] As a technical optimization solution of the utility model, the push rod 403 is slidably connected to the column 2, and the bottom end of the push rod 403 is arranged in an arc structure. The push rod 403 abuts against the slider 404, so that the slider 404 can squeeze the telescopic spring 405, thereby causing the push block 401 to slide out of the interior of the column 2.

[0029] As a technical optimization solution of the utility model, the end of the slider 404 that contacts the push rod 403 is arranged in an arc structure, and the slider 404 is slidingly connected to the column 2. When the slider 404 slides in a direction away from the push rod 403, the push block 401 can limit the insertion rod 5.

[0030] As a technical optimization solution of the utility model, the insertion rod 5 is arranged in an L-shaped structure, and the stop block 401 is slidingly connected to the column 2. When the stop block 401 slides into the interior of the column 2, it can be separated from the insertion rod 5, thereby facilitating the operator to disassemble and assemble the insertion rod 5.

[0031] As a technical optimization solution of the utility model, the mounting mechanism 3 includes a top cover 301 and an empty slot 303. The top end of the column 2 is snap-connected with the top cover 301. The column 2 is provided with an empty slot 303. The bottom end of the column 2 is fixedly connected with a base 302. The base 302 supports the column 2, so that the column 2 can be placed vertically.

[0032] As a technical optimization solution of the utility model, the empty slot 303 is located inside the column 2 close to the top cover 301, and a screw rod 402 rotates in the empty slot 303. When the screw rod 402 rotates in the column 2, the stop rod 403 can slide inside the column 2.

[0033] As a technical optimization scheme of the utility model, the protective mechanism 1 includes a second guardrail 102 and a rotating rod 103. The second guardrail 102 is fixedly connected to the insertion rod 5, and the second guardrail 102 is rotatably connected to the rotating rod 103. The rotating rod 103 is fixedly connected to the second bevel gear 107, and the second bevel gear 107 is meshed with the first bevel gear 106. The first bevel gear 106 is fixedly connected to the screw 105, and the first guardrail 101 is threadedly connected to the screw 105. The second guardrail 102 is fixedly installed with a sliding rod 104, and the screw 105 drives the first guardrail 101 to slide in the second guardrail 102, so that the protection height can be increased.

[0034] As a technical optimization solution of the present invention, the sliding rod 104 is located on the inner wall of the second guardrail 102 away from the screw rod 105, the first guardrail 101 is slidingly connected to the sliding rod 104, and the first guardrail 101 slides along the side wall of the sliding rod 104, so that the first guardrail 101 can slide along the inner wall of the second guardrail 102.

[0035] As a technical optimization solution of the utility model, the screw rod 105 is rotationally connected to the second guardrail 102, and the first guardrail 101 is slidingly connected to the second guardrail 102. When the screw rod 105 rotates inside the second guardrail 102, it can drive the first guardrail 101 to move upward.

[0036] As a technical optimization solution of the utility model, the two mounting blocks 6 are symmetrically fixed on the side walls of the column 2, and the two insertion rods 5 are symmetrically fixed on the side walls of the second guardrail 102. When the insertion rods 5 are located inside the mounting blocks 6, the second guardrail 102 can be limited.

[0037] When the utility model is in use, first, place the base 302 fixed at the bottom end of the column 2 on the ground. When the column 2 is in a vertical state, the operator can insert the plug rod 5 fixed on the second guardrail 102 into the two mounting blocks 6 fixed on both sides of the column 2, and the plug rod 5 contacts the top of the mounting block 6. Then use a tool to rotate the screw rod 402 provided at the top of the column 2. The screw rod 402 is threadedly connected with a push rod 403. When the push rod 403 slides along the inner wall of the column 2, the push rod 403 can contact the ends of the sliders 404 provided on both sides. The ends of the slider 404 and the push rod 403 that contact are both arranged in an arc structure. The slider 404 is squeezed by the squeezing force of the push rod 403 to squeeze the telescopic spring 405 sleeved on its side wall. When the telescopic spring 405 is in a compressed state, the slider 404 can drive the push block 4 01 slides out of the column 2, and the block 401 contacts the top of the insertion rod 5, which is convenient for limiting the insertion rod 5, thereby facilitating the disassembly and assembly of the second guardrail 102; when the insertion rods 5 on both sides of the second guardrail 102 are stuck in the mounting block 6, the second guardrail 102 can be connected to the two columns 2. When in use, the rotating rod 103 is rotated by a tool, and the rotating rod 103 is fixedly connected with a second bevel gear 107. When the second bevel gear 107 rotates, it can drive the first bevel gear 106 engaged with it to rotate. The first bevel gear 106 is fixedly connected with a screw 105. The screw 105 rotates inside the second guardrail 102, which can make the first guardrail 101 threadedly connected on the screw 105 move up along the second guardrail 102, thereby facilitating the adjustment of the height of the protective fence, which is beneficial to the protection effect of the foundation pit.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A foundation pit protection device, comprising a column (2), characterized in that: The column (2) is fixed with a mounting mechanism (3) and two mounting blocks (6); the mounting block (6) is snap-connected with an insertion rod (5); the insertion rod (5) is fixed with a protection mechanism (1); the column (2) is provided with a rotationally limited position mechanism (4); the limit position mechanism (4) comprises a screw rod (402) and a stop rod (403); the column (2) is rotationally connected with a screw rod (402); the screw rod (402) is threadedly connected with a stop rod (403); two sliders (404) are symmetrically abutted on the stop rod (403); a telescopic spring (405) is sleeved on the slider (404); a stop block (401) is fixedly connected to the slider (404); the stop block (401) abuts against the insertion rod (5).

2. A foundation pit protection device according to claim 1, characterized in that: The support rod (403) is slidably connected to the column (2), and the bottom end of the support rod (403) is arranged in a curved surface structure.

3. A foundation pit protection device according to claim 1, characterized in that: The end of the slider (404) in contact with the stop rod (403) is arranged in an arc surface structure, and the slider (404) is slidably connected to the column (2).

4. A foundation pit protection device according to claim 1, characterized in that: The insertion rod (5) is arranged in an L-shaped structure, and the stop block (401) is slidably connected to the column (2).

5. A foundation pit protection device according to claim 1, characterized in that: The mounting mechanism (3) comprises a top cover (301) and an empty slot (303); the top end of the column (2) is snap-connected with the top cover (301); the column (2) is provided with an empty slot (303); and the bottom end of the column (2) is fixedly connected with a base (302).

6. A foundation pit protection device according to claim 5, characterized in that: The empty slot (303) is located inside the column (2) close to the top cover (301), and a screw rod (402) is rotated in the empty slot (303).

7. A foundation pit protection device according to claim 1, characterized in that: The protection mechanism (1) comprises a second guardrail (102) and a rotating rod (103); the second guardrail (102) is fixedly connected to the insertion rod (5); the second guardrail (102) is rotatably connected to the rotating rod (103); the rotating rod (103) is fixedly connected to a second bevel gear (107); the second bevel gear (107) is meshed with a first bevel gear (106); the first bevel gear (106) is fixedly connected to a screw rod (105); the screw rod (105) is threadedly connected to the first guardrail (101); and the second guardrail (102) is fixedly mounted with a sliding rod (104).

8. A foundation pit protection device according to claim 7, characterized in that: The sliding rod (104) is located on the inner wall of the second guardrail (102) away from the screw rod (105), and the first guardrail (101) is slidably connected to the sliding rod (104).

9. A foundation pit protection device according to claim 8, characterized in that: The screw rod (105) is rotationally connected to the second guardrail (102), and the first guardrail (101) is slidingly connected to the second guardrail (102).

10. A foundation pit protection device according to claim 9, characterized in that: The two mounting blocks (6) are symmetrically fixed on the side walls of the pillar (2), and the two insertion rods (5) are symmetrically fixed on the side walls of the second guardrail (102).

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