Edge protection device with prestress self-recovery function

Abstract

The utility model relates to an edge protection device with a prestress self-recovery function. The edge protection device with the prestress self-recovery function comprises a fixed pipe body, a telescopic rod, a jacking screw rod and a jacking spring, the fixed pipe body is coaxially sleeved outside the telescopic rod, and the fixed pipe body and the telescopic rod slide relatively; the jacking spring is arranged in the fixed pipe body, and the two ends of the jacking spring abut against the bottom of the telescopic rod and the bottom of the fixed pipe body correspondingly; the interior of the telescopic rod is matched with the jacking screw rod through threads; a jacking end is arranged at the outer end of the jacking screw. According to the edge protection device with the prestress self-recovery function, a spring jacking and pressing mode is adopted, the telescopic rod of the device can automatically stretch forwards when loosing, it is guaranteed that the telescopic end can be fixed to the other wall in a jacking and pressing mode, the risk that the edge protection device looses is reduced, and using is safer.

Description

Technical Field

[0001] This utility model relates to the technical field of construction safety, and in particular to an edge protection device with prestressed self-recovery function. Background Technology

[0002] The edge protection of existing building projects usually adopts two forms: fences and steel pipe suspension. When using fences for edge protection, the installation process is complicated and slow. Generally, only the bottom of the fence is anchored inside the floor slab, resulting in low strength and low safety. If steel pipe suspension is used, hangers for suspending steel pipes need to be installed at both ends of the edge protection wall, which is labor-intensive and slow to construct.

[0003] Existing technologies typically employ screw-structured edge protection devices. These devices extend directly using threads, making their length non-adjustable. Once the wall dries, these edge protection devices may loosen or even fall off, posing a safety hazard.

[0004] Therefore, there is a need for an edge protection device that is strong, easy to use and install, adaptable to most wall specifications, and self-adjustable. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned problems and provide an edge protection device with prestressed self-recovery function.

[0006] The technical solution of this utility model is: an edge protection device with prestressed self-recovery function, including a fixed tube body, a telescopic rod, a top-pressing screw, and a tightening spring; the fixed tube body is coaxially sleeved on the outside of the telescopic rod, and the two slide relative to each other; the tightening spring is set inside the fixed tube body, and its two ends abut against the bottom of the telescopic rod and the bottom of the fixed tube body respectively; the telescopic rod is hollow, and its interior is threadedly engaged with the top-pressing screw; the outer end of the top-pressing screw is provided with a top-pressing end.

[0007] Preferably, the device further includes a fixing clamping structure; the fixing clamping structure includes a fixing clamping plate, a sliding clamping plate, a clamping screw, and a fastening nut; the fixing clamping plate is an L-shaped angle plate, fixedly connected to the end of the fixing tube; the bottom of the sliding clamping plate is provided with a sliding groove that matches the width of the fixing clamping plate, and the middle is provided with a through hole that matches the outer diameter of the clamping screw; one end of the clamping screw is fixed to the inner wall of the fixing clamping plate and passes through the through hole in the middle of the sliding clamping plate; the end face of the fastening nut abuts against the outer side of the sliding clamping plate and is threadedly engaged with the clamping screw. The fixing clamping structure can fix the fixed end of the device to one of the walls, and can be adjusted by tightening the fastening nut, making installation simple and disassembly easy.

[0008] Preferably, the inner wall of the fixed tube is provided with a plurality of limiting strips evenly distributed axially, and the outer wall of the telescopic rod is provided with a corresponding sliding groove. The limiting strips and the sliding groove cooperate to allow the telescopic rod to slide only axially, preventing the telescopic rod from rotating together with the top pressure screw.

[0009] Furthermore, the limiting strip is provided with three strips, and the outer wall of the telescopic rod is provided with three corresponding sliding grooves. The thickness of the limiting strip is less than the wall thickness of the telescopic rod to prevent the sliding groove on the outer wall of the telescopic rod from interfering with the thread on the inner wall of the telescopic rod due to excessive thickness of the limiting strip.

[0010] Preferably, the side of the fixed tube has a straight groove-shaped observation window; this allows observation of the elongation of the top pressure spring, thus enabling manual adjustment of the device.

[0011] Furthermore, the device also includes an indicator collar; the indicator collar is located at the end where the tensioning spring connects to the bottom surface of the telescopic rod, and includes a collar, a connecting rod, and a pointer. The collar is fixed to the end of the tensioning spring; the inner surface of the collar mates with the tensioning spring, and the outer surface is in contact with the inner surface of the fixed tube; the connecting rod is an L-shaped long rod, one end of which is connected to the collar, and the other end is connected to the pointer, the connecting rod passing through the observation window of the fixed tube; the pointer is arc-shaped, and its inner surface is in contact with the outer surface of the fixed tube. The indicator collar displays the subtle length changes of the tensioning spring, making it easier to judge the spring's extension.

[0012] Preferably, the top pressing end is provided with an anti-slip cone. The anti-slip cone can penetrate the wall with its tip to prevent the device from slipping due to external force after being pressed, thus preventing safety hazards.

[0013] Furthermore, a round hole is opened at the bottom center of the telescopic rod; this prevents the top screw from being unable to extend or retract due to the sealing of the inner cavity of the telescopic rod.

[0014] Furthermore, the pointer is made of a soft material, allowing it to be easily extended from the viewing window during installation.

[0015] Furthermore, the pointer is connected to the end of the connecting rod by a screw. This separate design of the pointer and connecting rod, connected by screws, simplifies device installation.

[0016] The beneficial effects of this utility model are: The edge protection device with prestressed self-recovery function of this utility model adopts the spring pressing method, so that the telescopic rod of the device can automatically extend forward when it is loose, ensuring that the telescopic end can be fixedly pressed against the other wall, reducing the risk of the edge protection device loosening and making it safer to use. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the structure of an edge protection device with prestressed self-recovery function according to this utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of an edge protection device with prestressed self-recovery function according to this utility model. Figure 2 (Remove the telescopic pole);

[0019] Figure 3 This is a structural diagram of the telescopic rod;

[0020] Figure 4 This is a structural schematic diagram of the top-pressing screw and the top-pressing end;

[0021] Figure 5 This is a front view of an edge protection device with prestressed self-recovery function according to this utility model. Figure 1 ;

[0022] Figure 6 yes Figure 5 AA section view;

[0023] Figure 7 This is a schematic diagram of the indicator collar;

[0024] Figure 8 This is a front view of an edge protection device with prestressed self-recovery function according to this utility model. Figure 2 .

[0025] In the diagram: 01. Fixed tube body, 11. Fixed clamping plate, 12. Sliding clamping plate, 13. Limiting strip, 14. Clamping screw, 15. Fastening nut, 16. Observation window, 02. Telescopic rod, 21. Top pressing end, 22. Top pressing screw, 23. Anti-slip cone, 24. Sliding groove, 03. Top pressing spring, 04. Indicator collar, 41. Collar, 42. Connecting rod, 43. Pointer, 44. Screw. Detailed Implementation

[0026] Example 1: See Figure 1-7 An edge protection device with prestressed self-recovery function includes a fixed tube 01, a telescopic rod 02, a top-pressing screw 22, and a tightening spring 03. The fixed tube 01 is coaxially sleeved on the outside of the telescopic rod 02, and the two slide relative to each other. The tightening spring 03 is disposed inside the fixed tube 01, with its two ends abutting against the bottom of the telescopic rod 02 and the bottom of the fixed tube 01, respectively. The telescopic rod 02 is hollow, and its interior is threadedly engaged with the top-pressing screw 22. The outer end of the top-pressing screw 22 is provided with a top-pressing end 21. The overall length of the device is first adjusted by adjusting the top-pressing screw 22, and then the tightening spring 03 is compressed to apply stress, fixing and holding the device in place. When the device loosens, it can automatically extend to maintain its tightening.

[0027] The device also includes a fixing clamping structure; the fixing clamping structure includes a fixing clamping plate 11, a sliding clamping plate 12, a clamping screw 14, and a fastening nut 15; the fixing clamping plate 11 is an L-shaped angle plate, which is fixedly connected to the end of the fixing tube 01; the bottom of the sliding clamping plate 12 is provided with a sliding groove that matches the width of the fixing clamping plate 11, and the middle is provided with a through hole that matches the outer diameter of the clamping screw 14; one end of the clamping screw 14 is fixed to the inner wall of the fixing clamping plate 11 and passes through the through hole in the middle of the sliding clamping plate 12; the end face of the fastening nut 15 abuts against the outer side of the sliding clamping plate 12 and is threadedly engaged with the clamping screw 14. The fixing clamping structure can fix the fixed end of the device to one of the walls, and can be adjusted by tightening the fastening nut 15, making installation simple and easy to disassemble.

[0028] The inner wall of the fixed tube 01 is axially and evenly provided with a plurality of limiting strips 13, and the outer wall of the telescopic rod 02 is correspondingly provided with a sliding groove 24. The limiting strips 13 and the sliding groove 24 cooperate to enable the telescopic rod 02 to slide only axially, preventing the telescopic rod 02 from rotating together with the top pressing screw 22.

[0029] The limiting strip 13 is provided in three parts, and the outer wall of the telescopic rod 02 is provided with three sliding grooves 24. The thickness of the limiting strip 13 is less than the wall thickness of the telescopic rod 02 to prevent the sliding groove 24 on the outer wall of the telescopic rod 02 from conflicting with the threads on the inner wall of the telescopic rod 02 due to excessive thickness of the limiting strip 13.

[0030] The side of the fixed tube 01 has a straight groove-shaped observation window 16; the elongation of the top pressure spring can be observed, and the device can be manually adjusted.

[0031] The device also includes an indicator collar 04; the indicator collar 04 is located at the end where the top spring 03 connects to the bottom surface of the telescopic rod 02, and includes a collar 41, a connecting rod 42, and a pointer 43. The collar 41 is fixed to the end of the top spring 03; the inner surface of the collar 41 mates with the top spring 03, and the outer surface is in contact with the inner surface of the fixed tube 01; the connecting rod 42 is an L-shaped long rod, one end of which is connected to the collar 41, and the other end is connected to the pointer 43, and the connecting rod 42 extends out from the observation window 16 of the fixed tube 01; the pointer 43 is arc-shaped, and its inner surface is in contact with the outer surface of the fixed tube 01. The indicator collar 04 displays the subtle length changes of the top spring, making it easier to judge the spring's extension.

[0032] The top pressing end 21 is provided with an anti-slip cone 23. The anti-slip cone 23 can penetrate into the wall to prevent the device from slipping due to external force after being pressed, thus preventing safety hazards.

[0033] The pointer 43 is made of a soft material; it can be easily extended from the viewing window 16 during installation. In this embodiment, rubber is used.

[0034] A round hole is opened at the middle of the bottom of the telescopic rod 02; this round hole is used as a pressure relief hole to prevent the top screw 22 from being unable to extend or retract due to the sealing of the inner cavity of the telescopic rod 02.

[0035] The usage steps of this embodiment are as follows:

[0036] ① Place the device's fixing and clamping structure on one side of the wall end face;

[0037] ② Adjust the fixing and clamping structure so that the device can be fixed to the wall;

[0038] ③Compression spring 03;

[0039] ④ Adjust the top pressure screw 22 so that the top pressure end 21 presses horizontally against the opposite wall end face;

[0040] ⑤ After the device stabilizes, mark the position of pointer 43;

[0041] ⑥ After observing that pointer 43 moves forward, adjust the top pressure screw 22, the entire device will extend, and the top pressure spring and pointer 43 will return to their original positions.

[0042] Example 2: See Figure 8 Embodiment 2 is basically the same as Embodiment 1, and the similarities will not be repeated. The difference is that the pointer 43 and the end of the connecting rod 42 are connected by a screw 44. The separate design of the pointer 43 and the connecting rod 42, and the connection by the screw 44, makes the installation of the device simpler.

Claims

1. An edge protection device with prestressed self-recovery function, characterized in that: It includes a fixed tube body, a telescopic rod, a top-pressing screw, and a tightening spring; the fixed tube body is coaxially sleeved on the outside of the telescopic rod, and the two slide relative to each other; the tightening spring is set inside the fixed tube body, and its two ends abut against the bottom of the telescopic rod and the bottom of the fixed tube body, respectively; the telescopic rod is hollow, and its interior is threadedly engaged with the top-pressing screw; the outer end of the top-pressing screw is provided with a top-pressing end.

2. The edge protection device with prestressed self-recovery function according to claim 1, characterized in that: The device also includes a fixing clamping structure; the fixing clamping structure includes a fixing clamping plate, a sliding clamping plate, a clamping screw, and a fastening nut; the fixing clamping plate is an L-shaped angle plate, which is fixedly connected to the end of the fixing tube; the bottom of the sliding clamping plate is provided with a sliding groove that matches the width of the fixing clamping plate, and the middle is provided with a through hole that matches the outer diameter of the clamping screw; one end of the clamping screw is fixed to the inner wall of the fixing clamping plate and passes through the through hole in the middle of the sliding clamping plate; the end face of the fastening nut abuts against the outer side of the sliding clamping plate and is threadedly engaged with the clamping screw.

3. The edge protection device with prestressed self-recovery function according to claim 1, characterized in that: The inner wall of the fixed tube is provided with several limiting strips evenly distributed axially, and the outer wall of the telescopic rod is provided with a corresponding sliding groove.

4. The edge protection device with prestressed self-recovery function according to claim 3, characterized in that: The limiting strip is provided with three strips, and the outer wall of the telescopic rod is provided with three corresponding sliding grooves. The thickness of the limiting strip is less than the wall thickness of the telescopic rod.

5. The edge protection device with prestressed self-recovery function according to claim 1, characterized in that: A straight groove-shaped observation window is opened on the side of the fixed tube.

6. The edge protection device with prestressed self-restoring function according to claim 5, characterized in that: The device also includes an indicator collar; the indicator collar is located at the end where the tensioning spring and the bottom surface of the telescopic rod meet, and includes a collar, a connecting rod and a pointer. The collar is fixed to the end of the tensioning spring; the inner surface of the collar mates with the tensioning spring, and the outer surface is in contact with the inner surface of the fixed tube; the connecting rod is an L-shaped long rod, one end of which is connected to the collar and the other end is connected to the pointer, and the connecting rod passes through the observation window of the fixed tube; the pointer is arc-shaped, and its inner surface is in contact with the outer surface of the fixed tube.

7. The edge protection device with prestressed self-recovery function according to claim 1, characterized in that: The top pressure end is provided with an anti-slip cone.

8. An edge protection device with prestressed self-recovery function according to claim 6, characterized in that: The pointer is made of a soft material.

9. An edge protection device with prestressed self-restoring function according to claim 6, characterized in that: The pointer is connected to the end of the connecting rod by a screw.

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