Anti-falling device for building construction
By designing protective devices with adjustable and fixed structures, the problem of insufficient stability and flexibility of traditional elevator shaft guardrails is solved, and effective shading and stable protection of elevator shafts of different widths is achieved.
Patent Information
- Application Number
- CN202421110975.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The traditional elevator shaft guardrail lacks fixity and is easy to move, resulting in poor stability and safety, and is fixed in length, which is not suitable for elevator shaft shielding and protection of different widths, and lacks flexibility.
A device including a first guardrail and a second guardrail is designed, and the position adjustment of the second guardrail is achieved by sliding connection, clamping structure and fixing structure using components such as pulling plates, sliders, rotating rods and clamping blocks and Fixing ensures shading protection for elevator wellheads of different widths and prevents movement through screws and block structures.
It improves the flexibility and stability of the protective device, can adapt to elevator wellheads of different widths for protection, and prevents movement during use, enhancing safety.
Smart Images
Figure CN222295785U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an anti-falling device, in particular to an anti-falling device for building construction, belonging to the technical field of safety protection devices for building construction. Background Art
[0002] Construction is a production activity in which people use various building materials, mechanical equipment and specific design blueprints to build various construction products within a certain space and time. During the construction of a building, an elevator shaft will be opened. In order to prevent construction workers from falling from the elevator shaft, it is generally necessary to set up guardrails at the elevator shaft opening.
[0003] However, traditional elevator shaft guardrails are generally placed directly at the elevator shaft opening. Due to the lack of fixation, they are prone to movement, which not only loses the protection of the elevator shaft opening, but also makes it easy to fall from the elevator shaft opening, resulting in poor stability and safety in use. In addition, general guardrails have a fixed length, which is not convenient for shielding and protecting elevator shaft openings of different widths, resulting in poor flexibility in use. Utility Model Content
[0004] The purpose of the utility model is to provide a fall prevention device for construction in order to solve the above-mentioned problem, which can shield and protect elevator shaft openings of different widths, thereby improving the flexibility of use, and at the same time can fix the guardrail to prevent it from moving during use, thereby improving the stability of use.
[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: a fall prevention device for construction, comprising a first guardrail, two second guardrails being slidably connected to the first guardrail, a clamping structure being provided on the second guardrail, a fixed structure being provided on the second guardrail, the clamping structure comprising a slide plate and a pull plate, two slide plates being slidably connected to the second guardrail, one of the slide plates being fixedly connected to the pull plate, a rotating rod being rotatably connected to the second guardrail, two connecting rods being rotatably connected at both ends of the rotating rod, one end of one connecting rod being rotatably connected to one of the slide plates, and one end of the other connecting rod being rotatably connected to the other slide plate, a clamping block being fixedly connected to the slide plate, a plurality of clamping grooves being provided on the first guardrail, and an end of the clamping block being clamped between two adjacent ones of the clamping grooves.
[0006] Preferably, the cross-section of the pull plate is L-shaped, and one end of the pull plate extends to the outside of the second guardrail.
[0007] Preferably, a return spring is fixedly connected to the pull plate, and the return spring is fixedly connected to the second guardrail.
[0008] Preferably, two adjacent connecting rods are parallel to each other, and the angle formed between the connecting rod and the rotating rod is an acute angle.
[0009] Preferably, the cross-section of the end of the card block is a trapezoidal structure, and the adjacent plurality of card slots are linearly and equidistantly distributed.
[0010] Preferably, two guide grooves are provided on the first guardrail, and two guide blocks are fixedly connected to the second guardrail. Two of the guide blocks located at the same horizontal position on the two second guardrails are slidably fitted with one of the guide grooves adjacent thereto, and the cross-section of the guide block is a "convex" shaped structure.
[0011] Preferably, a support base is fixedly connected to the bottom end of the first guardrail, and a cross-section of the support base is a T-shaped structure.
[0012] Preferably, the fixing structure comprises a connecting seat and a screw rod, the second guardrail is fixedly connected to two connecting seats, the connecting seat is rotatably connected to a screw rod, the screw rod is threadedly connected to a stop block, and the stop block is slidably connected to the connecting seat.
[0013] Preferably, one end of the screw is fixedly connected to a rotating block, and the rotating block passes through the screw and is perpendicular to the screw.
[0014] Preferably, the cross-section of one end of the stop block is in a T-shaped structure, the cross-section of the other end of the stop block is in an L-shaped structure, and the cross-section of the connecting seat is in an L-shaped structure.
[0015] The beneficial effect of the utility model is that the first guardrail can be moved to the elevator shaft opening during use, and then the pull plate can be pulled to drive one of the slide plates to move, and one of the slide plates can drive the rotating block to rotate through one of the connecting rods, and the rotation of the rotating block can drive the other slide plate to move in the opposite direction through another connecting rod, and the movement of the slide plate can drive the clamping block to move away from the clamping slot, and when the end of the clamping block is not engaged with the clamping slot, the second guardrail can be pushed to change its position on the first guardrail, and when the position of the second guardrail is adjusted, the pull plate can be released to engage the clamping block with the clamping slot, and the second guardrail cannot move on the first guardrail, and the rapid adjustment of the position of the second guardrail is completed. By adjusting the positions of the two second guardrails, elevator shaft openings of different widths can be shielded and protected, thereby improving the flexibility of use, and after the position of the second guardrail is adjusted, it can be pressed against the wall at the elevator shaft opening through the fixed structure, and the first guardrail and the second guardrail cannot move, thereby effectively improving the stability of use. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the connection structure between the connection seat and the screw rod of the utility model;
[0018] Figure 3 It is a schematic diagram of the connection structure between the first guardrail and the second guardrail of the utility model;
[0019] Figure 4 for Figure 3 An enlarged schematic diagram of part A is shown;
[0020] Figure 5 It is a schematic diagram of the connection structure of the connecting rod and the rotating rod of the utility model;
[0021] Figure 6 It is a schematic diagram of the connection structure between the pull plate and the slide plate of the utility model.
[0022] In the figure: 1. first guardrail; 2. second guardrail; 3. positioning structure; 301. pull plate; 302. slide plate; 303. connecting rod; 304. rotating rod; 305. blocking block; 306. slot; 307. reset spring; 4. fixing structure; 401. connecting seat; 402. rotating block; 403. screw rod; 404. stop block; 5. guide block; 6. guide slot; 7. supporting seat. DETAILED DESCRIPTION
[0023] 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.
[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, a fall prevention device for construction includes a first guardrail 1, two second guardrails 2 are slidably connected to the first guardrail 1, a locking structure 3 is provided on the second guardrail 2, and a fixed structure 4 is provided on the second guardrail 2, the locking structure 3 includes a slide plate 302 and a pull plate 301, two slide plates 302 are slidably connected to the second guardrail 2, one of the slide plates 302 is fixedly connected to the pull plate 301, a rotating rod 304 is rotatably connected to the second guardrail 2, and two ends of the rotating rod 304 are rotatably connected to two connecting rods 303, one end of one connecting rod 303 is rotatably connected to one of the slide plates 302, and one end of the other connecting rod 303 is rotatably connected to the other slide plate 302, a clamping block 305 is fixedly connected to the slide plate 302, and a plurality of clamping grooves 306 are provided on the first guardrail 1, and the ends of the clamping block 305 are engaged with two adjacent ones of the clamping grooves 306.
[0025] As a technical optimization solution of the utility model, Figure 1 As shown, the cross section of the pull plate 301 is an L-shaped structure, and one end of the pull plate 301 extends to the outside of the second guardrail 2, so the pull plate 301 can be easily pulled.
[0026] As a technical optimization solution of the utility model, Figure 1 As shown, a return spring 307 is fixedly connected to the pull plate 301 , and the return spring 307 is fixedly connected to the second guardrail 2 . Therefore, after the pull plate 301 is released, the return spring 307 can cause the clamping block 305 to engage with the clamping slot 306 again.
[0027] As a technical optimization solution of the utility model, Figure 5 and Figure 6 As shown, two adjacent connecting rods 303 are parallel to each other, and the angle formed between the connecting rod 303 and the rotating rod 304 is an acute angle, so that the two slide plates 302 can move in opposite directions.
[0028] As a technical optimization solution of the utility model, Figure 2 , Figure 3 and Figure 4 As shown, the cross section of the end of the block 305 is a trapezoidal structure, and the adjacent plurality of slots 306 are linearly and equidistantly distributed, so that the block 305 and the slots 306 can play a guiding role when they are engaged.
[0029] As a technical optimization solution of the utility model, Figure 1 and Figure 2As shown, two guide grooves 6 are provided on the first guardrail 1, and two guide blocks 5 are fixedly connected to the second guardrail 2. Two of the guide blocks 5 located at the same horizontal position on the two second guardrails 2 are slidably fitted with one of the guide grooves 6 adjacent thereto, and the cross-section of the guide block 5 is a "convex" shaped structure, so it can play a role in guiding the movement of the second guardrail 2.
[0030] As a technical optimization solution of the utility model, Figure 1 and Figure 2 As shown, a support base 7 is fixedly connected to the bottom end of the first guardrail 1 , and a cross-section of the support base 7 is a T-shaped structure, so that the first guardrail 1 can be supported.
[0031] As a technical optimization solution of the utility model, Figure 1 and Figure 2 As shown, the fixed structure 4 includes a connecting seat 401 and a screw 403, the second guardrail 2 is fixedly connected to two connecting seats 401, the connecting seat 401 is rotatably connected to the screw 403, the screw 403 is threadedly connected to a stop block 404, the stop block 404 is slidably connected to the connecting seat 401, one end of the screw 403 is fixedly connected to a rotating block 402, the rotating block 402 passes through the screw 403 and is perpendicular to the screw 403, the cross-section of one end of the stop block 404 is T-shaped, the cross-section of the other end of the stop block 404 is L-shaped, and the cross-section of the connecting seat 401 is L-shaped, so the first guardrail 1 and the second guardrail 2 can be prevented from moving, thereby effectively improving the stability of use.
[0032] When the utility model is in use, the first guardrail 1 can be moved to the elevator shaft opening, and then the pull plate 301 can be pulled, and the pull plate 301 can drive one of the slide plates 302 to move, and one of the slide plates 302 can drive the rotating rod 304 to rotate through one of the connecting rods 303, and the rotation of the rotating rod 304 can drive the other slide plate 302 to move in the opposite direction through the other connecting rod 303, and the movement of the slide plate 302 can drive the clamping block 305 to move away from the clamping slot 306. When the end of the clamping block 305 is not engaged with the clamping slot 306, the second guardrail 2 can be pushed to change its position on the first guardrail 1, and the guide block 5 can slide inside the guide slot 6 to guide the second guardrail 2. When the position adjustment of the second guardrail 2 is completed, the pull plate 301 can be released, and the reset spring 307 can contract to drive the clamping block 305 to engage with the clamping slot 306. When the second guardrail 2 is in a state of being unable to move on the first guardrail 1, the position of the second guardrail 2 is quickly adjusted. By adjusting the positions of the two second guardrails 2, the elevator shaft openings of different widths can be shielded and protected, thereby improving the flexibility of use. After the position of the second guardrail 2 is adjusted, the rotating block 402 can be rotated, and the rotating block 402 rotates to drive the screw 403 to rotate. The screw 403 rotates the thread to drive the stop block 404 to slide on the connecting seat 401. When the stop block 404 is tightly pressed against the wall at the elevator shaft opening, the rotation of the rotating block 402 can be stopped. At this time, the first guardrail 1 and the second guardrail 2 cannot move, thereby effectively improving the stability of use. Since the cross-section of one end of the stop block 404 is an L-shaped structure, the first guardrail 1 and the second guardrail 2 can be prevented from being subjected to a large impact force and falling into the interior of the elevator shaft, thereby further improving the stability of use.
[0033] 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.
[0034] 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 fall prevention device for construction, comprising a first guardrail (1), characterized in that: The first guardrail (1) is slidably connected to two second guardrails (2), the second guardrail (2) is provided with a locking structure (3), the second guardrail (2) is provided with a fixing structure (4), the locking structure (3) comprises a slide plate (302) and a pull plate (301), the second guardrail (2) is slidably connected to two slide plates (302), one of the slide plates (302) is fixedly connected to the pull plate (301), and the second guardrail (2) is rotatably connected to a rotating rod (304) Two connecting rods (303) are rotatably connected at both ends of the rotating rod (304), one end of one connecting rod (303) is rotatably connected to one of the slides (302), and one end of the other connecting rod (303) is rotatably connected to the other slide (302), a clamping block (305) is fixedly connected to the slide (302), a plurality of clamping grooves (306) are provided on the first guardrail (1), and an end of the clamping block (305) is clamped with two adjacent clamping grooves (306).
2. The anti-fall device for construction according to claim 1, characterized in that: The cross section of the pull plate (301) is in an L-shaped structure, and one end of the pull plate (301) extends to the outside of the second guardrail (2).
3. The anti-fall device for construction according to claim 1, characterized in that: A return spring (307) is fixedly connected to the pull plate (301), and the return spring (307) is fixedly connected to the second guardrail (2).
4. The anti-fall device for construction according to claim 1, characterized in that: Two adjacent connecting rods (303) are parallel to each other, and the angle formed between the connecting rod (303) and the rotating rod (304) is an acute angle.
5. The anti-fall device for construction according to claim 1, characterized in that: The cross section of the end of the card block (305) is a trapezoidal structure, and the adjacent plurality of card slots (306) are linearly and equidistantly distributed.
6. The anti-fall device for construction according to claim 1, characterized in that: The first guardrail (1) is provided with two guide grooves (6), and the second guardrail (2) is fixedly connected with two guide blocks (5), and two of the guide blocks (5) located at the same horizontal position on the two second guardrails (2) are slidably matched with one of the guide grooves (6) adjacent thereto, and the cross section of the guide block (5) is a "convex"-shaped structure.
7. The anti-fall device for construction according to claim 1, characterized in that: The bottom end of the first guardrail (1) is fixedly connected to a support seat (7), and the cross-section of the support seat (7) is a T-shaped structure.
8. The anti-fall device for construction according to claim 1, characterized in that: The fixing structure (4) comprises a connecting seat (401) and a screw rod (403); the second guardrail (2) is fixedly connected to two connecting seats (401); the connecting seat (401) is rotatably connected to a screw rod (403); the screw rod (403) is threadedly connected to a stop block (404); and the stop block (404) is slidably connected to the connecting seat (401).
9. A fall prevention device for construction according to claim 8, characterized in that: One end of the screw rod (403) is fixedly connected to a rotating block (402), and the rotating block (402) passes through the screw rod (403) and is perpendicular to the screw rod (403).
10. The anti-fall device for construction according to claim 8, characterized in that: The cross section of one end of the stop block (404) is in a T-shaped structure, the cross section of the other end of the stop block (404) is in an L-shaped structure, and the cross section of the connecting seat (401) is in an L-shaped structure.