A reinforcing bar puncture-proof sleeve

Abstract

This utility model relates to the field of construction technology and discloses a rebar anti-puncture sleeve, including a cap, a sleeve fixedly connected to the front side of the cap, a sliding cylinder slidably connected inside the sleeve, and multiple elastic bodies fixedly connected inside the sliding cylinder. An adjusting assembly for adjusting the length of the anti-puncture sleeve is provided on the outer side of the sleeve. The adjusting assembly includes a fixing ring, the inner side of which is fixedly connected to the outer side of the sleeve. Two rotating shafts are fixedly connected to the inner side of the fixing ring, and rotating blocks are rotatably connected to the outer sides of each of the two rotating shafts. A spring is fixedly connected to the top of each rotating block. In this utility model, the rebar head is secured by the elastic bodies. During installation, when pressed vertically downwards, the elastic bodies contract and expand, using their rebound force to lock the rebar securely within the sleeve, resisting external forces and preventing it from falling off. This protects the rebar from deformation and corrosion, ensuring structural safety.

Description

Technical Field

[0001] This utility model relates to the field of construction technology, and in particular to a rebar anti-puncture sleeve. Background Technology

[0002] A rebar puncture protector is a protective device used to protect the ends of rebars. It is typically made of materials such as plastic or rubber, possessing a certain degree of flexibility and strength. Its shape is generally tubular or cap-shaped, allowing it to fit tightly over the rebar end. Primarily used on construction sites and other similar locations, it prevents workers from being accidentally punctured by the rebar ends during construction, reducing the probability of accidents. It also helps prevent corrosion of the rebar ends, extending the service life of the rebar.

[0003] Rebar puncture protection sleeves achieve their protection through material and structural design. They utilize high-strength plastics, rubber, and other tough materials, tightly wrapping around the sharp ends of the rebar and using the material's inherent puncture resistance to buffer external force. The interference fit between the sleeve and the rebar forms a physical barrier. Additionally, some products are designed with anti-slip textures or locking structures to enhance stability and ensure continued puncture protection even under construction vibrations.

[0004] In existing technologies, some rebar protective sleeves can protect rebars from corrosion. However, the diameter of rebars varies on site, and there are many corresponding protective sleeve specifications, making it difficult to manage uniformly. Moreover, if the rebars are to be reused after one use, it is cumbersome to find the rebars of the corresponding diameter. This greatly affects workers' environmental awareness and significantly increases the difficulty of reuse. Therefore, a rebar puncture-proof sleeve is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a rebar puncture protection sleeve, which aims to improve the existing technology. Some rebar protective sleeves can protect rebars from corrosion, but the diameter of the rebars on site varies, and there are many corresponding protective sleeve specifications, which makes it difficult to manage uniformly. Moreover, if the rebars are to be reused after one use, it is cumbersome to find the rebars of the corresponding diameter, which greatly affects the environmental awareness of workers and greatly increases the difficulty of reuse.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A rebar puncture-proof sleeve includes a cap, a sleeve fixedly connected to the front side of the cap, a sliding cylinder slidably connected inside the sleeve, a plurality of elastic bodies fixedly connected inside the sliding cylinder, and an adjustment component for adjusting the length of the puncture-proof sleeve provided on the outer side of the sleeve.

[0008] As a further description of the above technical solution:

[0009] The adjusting assembly includes a fixed ring, the inner side of which is fixedly connected to the outer side of the sleeve. Two rotating shafts are fixedly connected to the inner side of the fixed ring, and rotating blocks are rotatably connected to the outer sides of the two rotating shafts. A spring is fixedly connected to the top of each rotating block.

[0010] As a further description of the above technical solution:

[0011] The top of the sleeve is provided with a square groove, and the inside of the sliding cylinder is provided with multiple grooves;

[0012] As a further description of the above technical solution:

[0013] The top of the sliding cylinder is provided with multiple trapezoidal grooves, and the bottom end of the rotating block is slidably connected to the inside of the trapezoidal grooves.

[0014] As a further description of the above technical solution:

[0015] The other end of the spring is fixedly connected to the inner side of the fixed ring, and the front and rear sides of the rotating block are rotatably connected to the inside of the fixed ring.

[0016] As a further description of the above technical solution:

[0017] The bottom end of the rotating block is slidably connected to the top end of the sliding cylinder, and the outer side of the rotating block is in contact with the outer side of the sleeve.

[0018] This utility model has the following beneficial effects:

[0019] 1. In this utility model, the worker presses the cap vertically down along the exposed rebar. The elastic body contracts under force and expands outward through the opening, using the rebound force to achieve a tight fit. Once the rebar head is completely inside the protective sleeve cavity, it is not easy to fall off even under external force. This protects the rebar from external forces and environmental influences, thus preventing rebar deformation, cracks, and other issues, effectively ensuring the structural safety of the building. Furthermore, the device is simple in structure, easy to operate, quick to connect, low in cost, durable, safe, and effective. The protective sleeve has a uniform specification to accommodate rebars of different diameters, is reusable, and allows for unified management and recycling, demonstrating practicality and economic efficiency.

[0020] 2. In this utility model, when in use, compare the length of the anti-puncture sleeve with that of the rebar head, hold the sleeve with your right hand, and rotate the sliding cylinder counterclockwise with your left hand to make the rotating block slide out of the trapezoidal groove. The spring is compressed and contracts to store force. After adjusting to the appropriate position, rotate the sliding cylinder clockwise, and the rotating block is inserted into another trapezoidal groove. The spring releases its elasticity and locks the position, realizing length adjustment, flexibly adapting to different exposed rebars, and eliminating blind spots in protection. Attached Figure Description

[0021] Figure 1This is a three-dimensional schematic diagram of a rebar anti-puncture sleeve proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the elastic body of the rebar anti-puncture sleeve proposed in this utility model;

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0025] Legend:

[0026] 1. Cap; 2. Sleeve; 3. Sliding cylinder; 4. Elastomer; 5. Fixing ring; 6. Shaft; 7. Rotating block; 8. Spring; 9. Square groove; 10. Trapezoidal groove; 11. Groove. Detailed Implementation

[0027] 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.

[0028] Reference Figures 1 to 3 This utility model provides an embodiment of a rebar puncture protection sleeve, including a cap 1. The cap 1 serves as a handheld part for easy insertion and operation, while also sealing the top of the device to prevent the rebar head from coming out from the top. A sleeve 2 is fixedly connected to the front side of the cap 1. The sleeve 2 is the basic frame of the entire puncture protection sleeve. On the one hand, it provides a sliding track for the sliding cylinder 3, ensuring that the sliding cylinder 3 can slide stably along its interior. On the other hand, the adjustment component installed on the outside of the sleeve 2 makes it a key carrier for adjusting the overall length of the puncture protection sleeve, and the protection range of the puncture protection sleeve can be flexibly adjusted according to the actual use scenario.

[0029] The sleeve 2 has a sliding cylinder 3 internally connected, which can be flexibly adjusted within a certain range according to the actual length of the rebar that needs to be protected. Multiple elastic bodies 4 are fixedly connected inside the sliding cylinder 3. When the rebar head is pressed, the elastic body 4 contracts, using its rebound force to press against the surface of the rebar, and fixing the rebar through friction to prevent it from falling off. An adjustment component for adjusting the length of the puncture-resistant sleeve is provided on the outer side of the sleeve 2.

[0030] Reference Figure 1 , Figure 2 , Figure 4The adjusting assembly includes a retaining ring 5, the inner side of which is fixedly connected to the outer side of the sleeve 2. The retaining ring 5 serves to support and fix other components of the adjusting assembly, providing a mounting base for the rotating shaft 6, rotating block 7, spring 8, etc., ensuring the overall structural stability of the adjusting assembly, and limiting the range of motion of each component on the outer side of the sleeve 2. Two rotating shafts 6 are fixedly connected to the inner side of the retaining ring 5, providing a fulcrum for the rotating block 7, allowing it to rotate flexibly around the rotating shaft 6 within a certain angle range. This enables the engagement and disengagement of different structures on the sliding cylinder 3, making it a key connecting component for the adjusting assembly to achieve its adjusting function.

[0031] Rotating blocks 7 are rotatably connected to the outer sides of both rotating shafts 6. Their rotatable design allows them to engage with the trapezoidal grooves 10 on the sliding cylinder 3 under the elastic force of springs 8. When length adjustment is required, the rotating blocks 7 can disengage from the trapezoidal grooves 10, and after the sliding cylinder 3 slides, they can re-engage with the trapezoidal grooves 10 in the appropriate position, thus fixing the position of the sliding cylinder 3. A spring 8 is fixedly connected to the top of the rotating block 7, providing elastic force towards the sliding cylinder 3, ensuring that the rotating block 7 firmly abuts against the sliding cylinder 3 and that the rotating block 7 and the trapezoidal grooves 10 on the sliding cylinder 3 are tightly fitted.

[0032] Reference Figure 1 , Figure 3 , Figure 4 The top of the sleeve 2 has a square groove 9, which provides positional constraint for the rotating block 7, ensuring that the rotating block 7 is in a designated position within the sleeve 2. The interior of the sliding cylinder 3 has multiple grooves 11, providing space for the movement of the elastic body 4, allowing it to freely contract and expand. The top of the sliding cylinder 3 has multiple trapezoidal grooves 10, and the bottom end of the rotating block 7 is slidably connected to the interior of the trapezoidal grooves 10. When the sliding cylinder 3 slides to a suitable position within the sleeve 2, the rotating block 7, under the elastic force of the spring 8, engages with the trapezoidal grooves 10, fixing the sliding cylinder 3 in this position and thus determining the length of the puncture-resistant sleeve. The other end of the spring 8 is fixedly connected to the inner side of the fixing ring 5, and the front and rear sides of the rotating block 7 are rotatably connected to the interior of the fixing ring 5. The bottom end of the rotating block 7 is slidably connected to the top of the sliding cylinder 3, and the outer side of the rotating block 7 is in contact with the outer side of the sleeve 2.

[0033] In the initial state, spring 8 is in its normal position, causing the bottom end of rotating block 7 to engage with the trapezoidal groove 10 at the top of sliding cylinder 3, thus fixing the position of sliding cylinder 3. When it is necessary to adjust the length of the puncture-resistant sleeve, rotating block 7 is pushed outward. Rotating block 7 overcomes the pressure of spring 8 and rotates around the rotating shaft 6, with its bottom end disengaging from the trapezoidal groove 10. At this time, sliding cylinder 3 can slide freely within sleeve 2. After adjusting to the appropriate length, rotating block 7 is rotated in the opposite direction, returning to its original position. The bottom end of rotating block 7 falls into the corresponding trapezoidal groove 10 inside sliding cylinder 3. Due to the continuous pressure applied by spring 8, rotating block 7 and trapezoidal groove 10 are tightly engaged, fixing sliding cylinder 3 again, thus completing the adjustment and locking of the puncture-resistant sleeve length.

[0034] Working principle: When the rebar head is exposed or there is a wall or column rebar at a height difference, the worker can hold the cap 1 and insert the device vertically along the rebar head. The elastic body 4 contracts under the force of the rebar head and moves. As the force increases, the end of the elastic body 4 extends outward through the opening into the sliding cylinder 3. The rebound force makes the elastic body 4 tighten and fix the rebar head. Finally, the rebar head reaches the cavity of the protective sleeve. The rebar will not fall off under a certain external force, which can effectively prevent construction workers from being stabbed or scratched by the rebar head on the construction site, improve construction safety, and reduce the scratch damage of the rebar to surrounding materials and equipment, thus reducing the loss of construction materials.

[0035] Compare the length of the puncture-proof sleeve with the length of the exposed rebar. Then, hold the sleeve 2 with your right hand and rotate the sliding cylinder 3 to the left with your left hand, causing the rotating block 7 to slide out of the trapezoidal groove 10. At this time, the spring 8 is compressed by the force of compression, undergoes elastic deformation and stores elastic potential energy, pulling the sliding cylinder 3 to the appropriate position. Then, rotate the sliding cylinder 3 to the right, causing the rotating block 7 to return to the inside of another trapezoidal groove 10. The spring 8 also releases its elastic potential energy, pressing the rotating block 7 into the inside of the trapezoidal groove 10, thereby realizing the length adjustment of the puncture-proof sleeve. This allows it to flexibly adapt to exposed rebars of different lengths, avoiding blind spots in protection due to different rebar extension lengths.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rebar puncture-proof sleeve, comprising a cap (1), characterized in that: A sleeve (2) is fixedly connected to the front side of the cap (1), a sliding cylinder (3) is slidably connected inside the sleeve (2), a plurality of elastic bodies (4) are fixedly connected inside the sliding cylinder (3), and an adjustment component for adjusting the length of the anti-puncture sleeve is provided on the outside of the sleeve (2).

2. The rebar puncture-proof sleeve according to claim 1, characterized in that: The adjusting assembly includes a fixing ring (5), the inner side of which is fixedly connected to the outer side of the sleeve (2), and the inner side of the fixing ring (5) is fixedly connected to two rotating shafts (6). The outer sides of the two rotating shafts (6) are rotatably connected to rotating blocks (7), and the top of the rotating blocks (7) is fixedly connected to a spring (8).

3. The rebar puncture-proof sleeve according to claim 2, characterized in that: The top of the sleeve (2) is provided with a square groove (9), and the inside of the sliding cylinder (3) is provided with multiple grooves (11).

4. The rebar puncture-proof sleeve according to claim 2, characterized in that: The top of the sliding cylinder (3) is provided with multiple trapezoidal grooves (10), and the bottom end of the rotating block (7) is slidably connected to the inside of the trapezoidal grooves (10).

5. A rebar puncture-proof sleeve according to claim 2, characterized in that: The other end of the spring (8) is fixedly connected to the inner side of the fixed ring (5), and the front and rear sides of the rotating block (7) are rotatably connected to the inside of the fixed ring (5).

6. A rebar puncture-proof sleeve according to claim 2, characterized in that: The bottom end of the rotating block (7) is slidably connected to the top end of the sliding cylinder (3), and the outer side of the rotating block (7) is in contact with the outer side of the sleeve (2).

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