Convenient self-clamping hole protection device with high turnover rate

Abstract

The invention belongs to the technical field of building construction, and particularly relates to a high-turnover-rate convenient self-clamping hole protection device which comprises a handheld mechanism, a sleeve, a pull rod and a clamping mechanism, the handheld mechanism comprises a fixed handle and a movable handle, the sleeve is connected with the fixed handle, the pull rod is slidably connected into the sleeve, one end of the movable handle is rotatably connected with the fixed handle, and the other end of the movable handle is rotatably connected with the clamping mechanism. The clamping mechanism comprises a spring, a connecting rod, a lifting piece and a clamping rod, the lifting piece is arranged at the end, away from the handheld mechanism, of the pull rod, the connecting rod is connected to the sleeve, the spring is arranged on the side, close to the fixed handle, of the lifting piece, the two ends of the spring abut against the lifting piece and the connecting rod, and a gear is arranged at the end of the clamping rod. The gear is meshed with the lifting piece, and the clamping rod is rotationally connected with the connecting rod; compared with the prior art, the cover plate with the proper size can be selected according to the sizes of different holes, the hole protection requirement is met, the material turnover rate is increased, and the cost is saved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a convenient self-clamping hole protection device with a high turnover rate. Background Art

[0002] During the construction process, many holes need to be reserved on the floor to meet the needs of design and later installation. However, holes that are not protected or not properly protected may cause dangers such as workers falling and objects falling, and may even cause serious injury accidents. Therefore, effective safety protection measures must be taken during the construction process.

[0003] At present, the relevant specifications for building construction have clear provisions for the protection of horizontal openings: when the short side of the opening is 25mm-500mm, it should be covered with a cover plate with a bearing capacity that meets the use requirements. The cover plates should be placed evenly around the edges and should be prevented from shifting. However, in the actual construction process, workers usually only use randomly cut wooden boards to cover the openings and rarely use nails to fix them. This makes it very easy for the protective measures to be moved at will or fail to meet the size requirements of the openings, thus failing to achieve the expected protective effect and posing a huge safety hazard. Even if some wooden boards are fixed to the floor slab with nails, they will cause certain damage to the floor slab when they are removed. After removal, the wooden boards with nails randomly stacked on the construction site will also bring potential safety hazards and are difficult to use in rotation. Due to the complex material properties of wooden boards, they are easily damaged during use, and their bearing capacity is difficult to calculate and verify. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention develops a convenient self-clamping hole protection device with a high turnover rate. The device can select a cover plate of a suitable size according to different hole sizes to meet the needs of hole protection, simplify the protection workflow, improve the material turnover rate, and save costs.

[0005] The technical solution to the technical problem solved by the present invention is: a convenient self-clamping hole protection device with a high turnover rate, comprising a hand-held mechanism, a sleeve, a pull rod and a clamping mechanism, the hand-held mechanism comprising a fixed handle and a movable handle, the sleeve is connected to the fixed handle, a pull rod is slidably connected in the sleeve, one end of the movable handle is rotatably connected to the fixed handle, and the other end is rotatably connected to the pull rod, a cover plate is slidably connected to the sleeve, the clamping mechanism comprises a spring, a connecting rod, a lifting member and a clamping rod, the lifting member is arranged at an end of the pull rod away from the hand-held mechanism, an array of grooves is arranged on the lifting member, the connecting rod is connected to the sleeve, the spring is arranged on a side of the lifting member close to the fixed handle, one end is pressed against the lifting member, and the other end is pressed against the connecting rod, a gear is arranged at the end of the clamping rod, the gear is meshed and connected to the lifting member, and the clamping rod is rotatably connected to the connecting rod.

[0006] Preferably, the sleeve is provided with an adjusting thread, and the cover plate is threadedly connected to the adjusting thread.

[0007] Preferably, the adjusting thread is arranged within a range of 80-150 mm from the lifting member.

[0008] Preferably, the fixed handle and the sleeve are detachably connected.

[0009] Preferably, an anti-sliding block is provided at the end of the clamping rod.

[0010] Preferably, the clamping rod and the connecting rod are detachably connected.

[0011] Preferably, reflective strips are arranged in an array on the sleeve.

[0012] Preferably, the cover plate is a prefabricated cover plate.

[0013] Preferably, stiffening ribs are provided on the cover plate.

[0014] The effects provided in the content of the invention are only the effects of the embodiments, rather than all the effects of the invention. The above technical solution has the following advantages or beneficial effects: 1. By using prefabricated cover plates, suitable cover plates can be selected according to the size of different openings, and then replaced to meet the protection needs of various openings; 2. By using the lifting parts and gears to rotate the clamping rod to cooperate with the cover plate to clamp the floor slab, it can prevent the cover plate from moving and causing safety hazards; 3. The cover adopts a detachable design, which can be used repeatedly and has high economic benefits; 4. The clamping rod is detachably connected, and the clamping rod of suitable length can be selected according to the size of the hole, which has a wide range of uses; 5. By setting reflective strips on the casing, safety can be improved at night and a safety warning can be given to construction workers; 6. By setting an anti-sliding block at the end of the clamping rod, the cover plate can be further prevented from moving, thus better ensuring the stability after clamping; 7. By setting the adjustment thread, the distance between the cover plate and the clamping rod can be easily adjusted according to the thickness of the floor slab, which is easy to operate; 8. By setting stiffening ribs on the cover plate, the bearing capacity of the cover plate can be improved and the protection safety can be better guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the present invention; Figure 2 It is a right side view of the present invention; Figure 3It is the overall structural diagram of the present invention; Figure 4 A bottom view of the present invention; Figure 5 It is a screenshot of the internal structure of the present invention.

[0016] Among them: 1. Fixed handle; 2. Movable handle; 3. Sleeve; 31. Adjustment thread; 32. Reflective strip; 4. Pull rod; 5. Cover plate; 51. Stiffening rib; 6. Spring; 7. Connecting rod; 8. Lifting piece; 9. Gear; 10. Clamping rod; 101. Anti-sliding block. DETAILED DESCRIPTION

[0017] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0018] Example 1 See also Figures 1 to 5 , a convenient self-clamping hole protection device with high turnover rate, comprising a hand-held mechanism, a sleeve 3, a pull rod 4 and a clamping mechanism, the hand-held mechanism comprising a fixed handle 1 and a movable handle 2, the sleeve 3 is connected to the fixed handle 1, a pull rod 4 is slidably connected in the sleeve 3, one end of the movable handle 2 is rotatably connected to the fixed handle 1, and the other end is rotatably connected to the pull rod 4, a cover plate 5 is slidably connected to the sleeve 3, the clamping mechanism comprises a spring 6, a connecting rod 7, a lifting member 8 and a clamping rod 10, the lifting member 8 is arranged at the end of the pull rod 4 away from the hand-held mechanism, an array of grooves is arranged on the lifting member 8, the connecting rod 7 is connected to the sleeve 3, the spring 6 is arranged on the side of the lifting member 8 close to the fixed handle 1, one end is pressed against the lifting member 8, and the other end is pressed against the connecting rod 7, a gear 9 is arranged at the end of the clamping rod 10, the gear 9 is meshed and connected with the lifting member 8, and the clamping rod 10 is rotatably connected with the connecting rod 7.

[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the sleeve 3 is provided with an adjusting thread 31, and the cover plate 5 is threadedly connected to the adjusting thread 31, and the adjusting thread 31 is set in the range of 880-150mm from the lifting member.

[0020] The fixed handle 1 and the sleeve 3 are detachably connected.

[0021] like Figure 4 and Figure 5 As shown, an anti-sliding block 101 is provided at the end of the clamping rod 10 .

[0022] The clamping rod 10 and the connecting rod 7 are detachably connected.

[0023] like Figures 1 to 3 As shown, reflective strips 32 are arranged in an array on the sleeve 3 .

[0024] The cover plate 5 is a prefabricated cover plate 5 .

[0025] like Figure 4 As shown, the cover plate 5 is provided with stiffening ribs 51 .

[0026] Principle and operation process The present invention utilizes the lever principle to realize the clamping action of the clamping rod 10 on the cover plate 5. One end of the movable handle 2 in the hand-held mechanism is rotatably connected to the fixed handle 1, and the other end is rotatably connected to the pull rod 4. When the movable handle 2 is operated, the movable handle 2 rotates around the connection point with the fixed handle 1, driving the pull rod 4 to slide in the sleeve 3. The movement of the pull rod 4 causes the lifting member 8 arranged at its end to produce a corresponding displacement. Since the lifting member 8 is provided with an array of grooves, the gear 9 at the end of the clamping rod 10 is meshed and connected with the lifting member 8. When the lifting member 8 moves up and down, the gear 9 drives the clamping rod 10 to rotate around the connection point with the connecting rod 7. At the same time, the spring 6 is arranged on the side of the lifting member 8 close to the fixed handle 1, one end of which is pressed against the lifting member 8, and the other end is pressed against the connecting rod 7. The spring 6 plays the role of assisting resetting and providing a certain clamping force pre-tightening. During the rotation of the clamping rod 10, the clamping rod 10 cooperates with the cover plate 5 to achieve the clamping of the floor slab. The anti-sliding block 101 disposed at the end of the clamping rod 10 further increases the friction between the clamping rod 10 and the cover plate 5, thereby preventing the cover plate 5 from moving and better ensuring the stability after clamping.

[0027] The sleeve 3 is provided with an adjustment thread 31, and the cover plate 5 is threadedly connected to the adjustment thread 31. By rotating the cover plate 5, the distance between the cover plate 5 and the clamping rod 10 can be conveniently adjusted according to the thickness of the floor slab. The adjustment thread 31 is set in the range of 880-150mm from the lifting member, which is the thickness range of most floor slabs during construction. Under the premise of ensuring the stability of the device structure and the effective transmission of the clamping force, the cover plate 5 can flexibly adapt to the protection requirements of floors of different thicknesses.

[0028] The cover plate 5 is a prefabricated cover plate 5, and a suitable cover plate 5 can be selected according to the size of different openings, and then replaced to meet the protection needs of various openings. The cover plate 5 is provided with a stiffening rib 51, which improves the bearing capacity of the cover plate 5 and better ensures the safety of protection. The sleeve 3 is provided with a reflective strip 32 in an array, which can reflect light at night, improve safety, and provide safety warnings to construction workers to prevent construction workers from accidentally hitting the protective device due to insufficient light.

[0029] When in use, first select a prefabricated cover plate 5 of appropriate size and a clamping rod 10 of corresponding length according to the size of the hole. Then move the device as a whole to the hole position, make the sleeve 3 perpendicular to the floor plane, hold the movable handle 2, and press down. The movable handle 2 drives the pull rod 4 to move upward in the sleeve 3, and the lifting member 8 at the end of the pull rod 4 moves upward accordingly. Since the lifting member 8 is engaged with the gear 9 at the end of the clamping rod 10, the clamping rod 10 rotates toward the cover plate 5 around the connection point with the connecting rod 7. At this time, the clamping rod 10 is in a gathered state. The clamping rod 10 is partially extended into the hole on the floor, and then the movable handle 2 is released. The elastic force of the spring 6 is used to rotate the clamping rod 10 until it returns to the initial state. At this time, the clamping rod 10 and the cover plate 5 can cooperate to clamp the floor and block the hole.

[0030] If it is found that the fit between the cover plate 5 and the floor slab is not sufficient or the clamping force is uneven during the clamping process, the distance between the cover plate 5 and the clamping rod 10 can be adjusted by rotating the position of the cover plate 5 on the adjusting thread 31. According to the actual situation, the cover plate 5 is screwed in or out appropriately to achieve the best protection and clamping effect.

[0031] During the use of the protective device, regularly check the clamping state of the clamping rod 10, the integrity of the cover plate 5, and the warning effect of the reflective strip 32. If the clamping rod 10 is found to be loose, the cover plate 5 is damaged, or the reflective strip 32 is unclear, etc., repair or replace it in time. When the hole protection position needs to be changed or the hole size changes, first pinch the movable handle 2, gather the clamping rod 10, then take out the protective device, disassemble the cover plate 5 and the clamping rod 10, select the appropriate cover plate 5 and clamping rod 10, and reinstall them at the new hole position according to the above installation and clamping operation process. During the entire use cycle, make full use of the characteristics of the detachable cover plate 5 and the replaceable clamping rod 10, as well as the self-clamping and adjustable functions of the device, to achieve high turnover rate use, improve economic benefits and ensure construction safety.

[0032] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the present invention.

Claims

1. A high turnover rate convenient self-clamping hole protection device, characterized in that: The invention comprises a hand-held mechanism, a sleeve (3), a pull rod (4) and a clamping mechanism, wherein the hand-held mechanism comprises a fixed handle (1) and a movable handle (2), the sleeve (3) is connected to the fixed handle (1), the pull rod (4) is slidably connected in the sleeve (3), one end of the movable handle (2) is rotatably connected to the fixed handle (1), and the other end is rotatably connected to the pull rod (4), the sleeve (3) is slidably connected to a cover plate (5), and the clamping mechanism comprises a spring (6), a connecting rod (7), a lifting member (8) and a clamping rod (10 ), the lifting member (8) is arranged at the end of the pull rod (4) away from the hand-held mechanism, the lifting member (8) is provided with an array of grooves, the connecting rod (7) is connected to the sleeve (3), the spring (6) is arranged on the side of the lifting member (8) close to the fixed handle (1), one end of the spring (6) is tightly pressed against the lifting member (8), and the other end is tightly pressed against the connecting rod (7), the end of the clamping rod (10) is provided with a gear (9), the gear (9) is meshedly connected with the lifting member (8), and the clamping rod (10) is rotatably connected with the connecting rod (7).

2. A high turnover rate convenient self-clamping hole protection device according to claim 1, characterized in that: The sleeve (3) is provided with an adjusting thread (31), and the cover plate (5) is threadedly connected to the adjusting thread (31).

3. A high turnover rate convenient self-clamping hole protection device according to claim 2, characterized in that: The adjusting thread (31) is arranged within a range of 80-150 mm from the lifting member (8).

4. A high turnover rate convenient self-clamping hole protection device according to claim 1, characterized in that: The fixed handle (1) and the sleeve (3) are detachably connected.

5. A high turnover rate convenient self-clamping hole protection device according to claim 1, characterized in that: An anti-sliding block (101) is provided at the end of the clamping rod (10).

6. A high turnover rate convenient self-clamping hole protection device according to claim 1, characterized in that: The clamping rod (10) and the connecting rod (7) are detachably connected.

7. A high turnover rate convenient self-clamping hole protection device according to claim 1, characterized in that: The sleeve (3) is provided with reflective strips (32) in an array.

8. A high turnover rate convenient self-clamping hole protection device according to claim 1, characterized in that: The cover plate (5) is a prefabricated cover plate (5).

9. A high turnover rate convenient self-clamping hole protection device according to claim 1, characterized in that: The cover plate (5) is provided with a stiffening rib (51).

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