Construction safety support device

Abstract

The utility model relates to construction safety technical field especially relates to a construction safety support device, including two support plates, is equipped with fixed block between two support plates, and fixed block inserts down and connects positioning rod, and is rotatably connected pivot in the rotating hole of the left and right sides of fixed block side, and the outer end fixed connection sleeve pipe of pivot, and the outer periphery fixed connection gear ring of sleeve pipe one side, and the screw rod of sleeve pipe inner thread connection, and the connecting seat fixed connection of screw rod end head, and the support plate fixed connection of connecting seat. The utility model discloses safety support device, can be fixed in the groove fast, and the spacing between both sides support plate can adjust along with the groove width, is suitable for protecting in the groove of different width.

Description

Technical Field

[0001] This utility model relates to the field of construction safety technology, and in particular to a construction safety support device. Background Technology

[0002] Trench construction safety support refers to a series of support measures taken during trench excavation to ensure construction safety and prevent landslides or collapses from injuring workers inside the trench. To ensure the safety of workers inside the trench, temporary safety support is needed at the construction site to provide temporary protection. Existing support devices are mostly complex in structure, and after being placed in the trench, they require additional fixing, making operation complicated and stability poor. Some support devices cannot be adjusted according to the width of the trench, limiting their applicability to trenches of a specific width. Utility Model Content

[0003] The purpose of this utility model is to provide a construction safety support device to solve the problem mentioned in the background art that after support is provided, it is necessary to fix the support in order to ensure the safety of construction personnel.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A construction safety support device includes two support plates, a fixing block between the two support plates, and a positioning rod inserted downward in the middle of the fixing block; symmetrical rotating holes are provided on the left and right sides of the fixing block, a rotating shaft is rotatably connected in the rotating holes, a sleeve is fixedly connected to the outer end of the rotating shaft, a gear ring is fixedly connected to the outer circumference of the sleeve near the fixing block, a screw rod is threaded inside the sleeve, a connecting seat is fixedly connected to the outer end of the screw rod, and the connecting seat is fixedly connected to the support plate.

[0006] Preferably, the fixing block is provided with a limiting mechanism, which includes a support frame fixed to the top of the fixing block, a sliding groove on the side of the support frame, a vertical limiting rod fixed in the sliding groove, one side of the pressure plate slidably sleeved on the limiting rod, a spring sleeved on the limiting rod, the spring being located below the pressure plate, the upper end of the spring being fixed to the pressure plate, and the lower end of the spring being fixed to the bottom surface of the sliding groove; the side of the pressure plate away from the limiting rod has downward teeth, which mesh with a gear ring; a bolt is threaded through the top of the support frame, and the bottom end of the bolt abuts against the upper surface of the pressure plate.

[0007] Preferably, there are two limiting mechanisms, symmetrically distributed on the left and right sides of the fixed block.

[0008] Preferably, the support plate is an L-shaped plate.

[0009] Preferably, one end of the pressure plate is in contact with the inner wall of the groove.

[0010] The safety support device of this utility model can be quickly fixed in the trench, with good stability, and the spacing between the two support plates can be adjusted according to the width of the trench, making it suitable for protection in trenches of different widths. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the sleeve and gear ring used in conjunction with this utility model;

[0014] Figure 4 This is a schematic diagram of the limiting mechanism of this utility model.

[0015] In the diagram: 1. Support plate; 2. Fixing block; 3. Rotating hole; 4. Rotating shaft; 5. Sleeve; 6. Gear ring; 8. Lead screw; 9. Protruding rod; 10. Connecting seat; 11. Support frame; 12. Slide groove; 13. Limiting rod; 14. Pressure plate; 15. Spring; 16. Tooth; 17. Bolt; 18. Positioning rod. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] This embodiment includes a fixing block 2 with a through hole in the middle, into which a positioning rod 18 is inserted downwards. Horizontal rotating holes 3 are symmetrically formed on the left and right sides of the fixing block 2. A rotating shaft 4 is rotatably connected within each rotating hole 3. One end of the rotating shaft 4 is rotatably connected to the inner wall of the rotating hole 3, and the other end is fixedly connected to a sleeve 5. A gear ring 6 is fixedly connected to the outer periphery of the sleeve 5 near the fixing block 2, and a lead screw 8 is threaded into the sleeve 5. A connecting seat 10 is fixedly connected to the outer end of the lead screw 8, and the connecting seat 10 is fixedly connected to a support plate 1 by screws. Rotating the sleeve 5 causes the rotating shaft 4, which is fixed to the sleeve 5, to rotate within the rotating hole 3. This causes the lead screw 8 to extend or shorten relative to the sleeve 5, thereby adjusting the length of the lead screw 8 and consequently the distance between the two support plates 1, making it suitable for grooves of different widths. To facilitate rotation of the sleeve 5, a protruding rod 9 is preferably fixedly connected to the outer periphery of the sleeve 5. Tightening the protruding rod 9 by hand allows for easy rotation of the sleeve 5, thereby adjusting the length of the lead screw 8 extending outwards from the sleeve 5.

[0018] Two support plates 1 are symmetrically distributed on the left and right sides of the fixing block 2. It is preferable that the support plate 1 is an L-shaped plate, as the L-shaped plate can make the support plate 2 more stable on the ground.

[0019] For better positioning, a limiting mechanism is preferably provided on the fixed block 2. Two limiting mechanisms are symmetrically provided on the left and right sides of the fixed block. The limiting mechanism includes a support frame 11, which is fixed to the top of the fixed block 2. In this embodiment, the support frame 11 is L-shaped. A sliding groove 12 is provided on the side of the support frame 11. A vertical limiting rod 13 is fixed in the sliding groove 12. One side of a pressure plate 14 is slidably sleeved on the limiting rod 13, and the pressure plate 14 can slide up and down along the limiting rod 13. A spring 15 is sleeved on the limiting rod 13. The spring 15 is located below the pressure plate 14. The upper end of the spring 15 is fixed to the pressure plate 14, and the lower end of the spring 15 is fixed to the bottom surface of the sliding groove 12. The spring 15 is used to reset the pressure plate 14. The side of the pressure plate 14 away from the limiting rod 13 has teeth 16 integrally formed downwards. The teeth 16 can mesh with the gear ring 6 to prevent the sleeve 5 from rotating, making the overall structure more stable and achieving a better support effect. A bolt 17 is threaded through the top of the support frame 11, with the bottom end of the bolt 17 abutting against the upper surface of the pressure plate 14. By tightening the bolt 17, the pressure plate 14 is pressed down, causing it to slide downwards along the limiting rod 13, thereby allowing the teeth 16 to mesh with the gear ring 6. Tightening the bolt 17 upwards releases the downward pressure on the pressure plate 14, and under the action of the spring 15, the pressure plate 14 slides upwards along the limiting rod 13, thereby disengaging the teeth 16 from the gear ring 6. Preferably, the side of the pressure plate 14 furthest from the teeth 16 abuts against the inner wall of the slide groove 12.

[0020] In use: Place the two guard plates 1 symmetrically against the side walls of the trench, then place the fixing block 2 between the two guard plates 1. Insert the positioning rod 18 through the fixing block 2 and strike the upper end of the positioning rod 18 so that the positioning rod 18 is inserted downward into the ground at the bottom of the trench. Then, rotate the sleeves 5 on both sides by turning the convex rod 9 to extend the threaded rod 8 outward until the connecting seat 10 at the outer end of the threaded rod 8 tightly abuts against the guard plate 1. Then, fix the connecting seat 10 to the guard plate 1 with screws. Finally, turn the bolt 17 to press the pressure plate 14 downward. At this time, the spring 15 is compressed until the teeth 16 of the pressure plate 14 mesh with the gear ring 6, thereby preventing the sleeve 5 from rotating, making the whole structure more stable and having a better support effect.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A construction safety support device, comprising two support plates (1), characterized in that: A fixing block (2) is provided between the two support plates (1), and a positioning rod (18) is inserted downward in the middle of the fixing block (2); rotating holes (3) are symmetrically opened on the left and right sides of the fixing block (2), and a rotating shaft (4) is rotatably connected in the rotating hole (3). A sleeve (5) is fixedly connected to the outer end of the rotating shaft (4). A gear ring (6) is fixedly connected to the outer circumference of the sleeve (5) near the fixing block (2). A screw rod (8) is threaded inside the sleeve (5). A connecting seat (10) is fixedly connected to the outer end of the screw rod (8). The connecting seat (10) is fixedly connected to the support plate (1).

2. The construction safety support device according to claim 1, characterized in that: The fixed block (2) is provided with a limiting mechanism, which includes a support frame (11) fixed to the top of the fixed block (2). A sliding groove (12) is provided on the side of the support frame (11). A vertical limiting rod (13) is fixed in the sliding groove (12). One side of the pressure plate (14) is slidably sleeved on the limiting rod (13). A spring (15) is sleeved on the limiting rod (13). The spring (15) is located below the pressure plate (14). The upper end of the spring (15) is fixed together with the pressure plate (14), and the lower end of the spring (15) is fixed together with the bottom surface of the sliding groove (12). The side of the pressure plate (14) away from the limiting rod (13) is provided with teeth (16) downward. The teeth (16) are meshed with the gear ring (6). A bolt (17) is threaded through the top of the support frame (11). The bottom end of the bolt (17) abuts against the upper surface of the pressure plate (14).

3. The construction safety support device according to claim 2, characterized in that: There are two limiting mechanisms, symmetrically distributed on the left and right sides of the fixed block (2).

4. The construction safety support device according to claim 1 or 2, characterized in that: The support plate (1) is an L-shaped plate.

5. The construction safety support device according to claim 2, characterized in that: One end of the pressure plate (14) is in contact with the inner wall of the groove (12).

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