Cement bolt with locking sawteeth

Abstract

The utility model discloses a cement bolt with locking sawteeth, which comprises a stopping part and is characterized in that the top of the stopping part is fixedly connected with a screw head, the bottom of the stopping part is provided with a screw rod component, and the top of the stopping part is provided with a sealing component for protecting the screw head; the sealing assembly comprises a rubber block arranged at the top of the stopping part, and a penetrating groove is formed in the bottom of the rubber block. Through the design of the rubber block, the containing groove, the penetrating-in groove and the fixing piece, after an object is fixed through the bolt, the rubber block is arranged on the outer wall of the stopping part and the outer wall of the screw head in a sleeving mode through the penetrating-in groove and the containing groove, and one end of the rubber block is made to extrude the object; the gap between the rubber block and an object is filled through extrusion deformation of the rubber block, and finally the position of the rubber block is fixed through the fixing piece, so that rainwater cannot make contact with the blocking part and the screw head in rainy days, and the blocking part and the screw head are prevented from being rusted by the rainwater during use.

Description

Technical Field

[0001] The utility model relates to the technical field of cement bolts, in particular to a cement bolt with locking sawteeth. Background Art

[0002] When concrete precast components need to be connected, cement bolts are commonly used as fasteners. Compared with ordinary bolts, cement bolts have higher connection strength and can improve the connection stability between precast components.

[0003] In use, first drill a hole in the wall surface, then attach the object to the wall surface, and then fix the object to the wall surface through a cement bolt. The existing cement bolt has a hexagonal screw head. When the bolt needs to be turned, it is directly sleeved on the screw head by a machine, and the bolt is driven to rotate by the machine. And some bolts are installed outdoors. After long-term use, there is a situation where the part of the protruding object is corroded due to the erosion of rainwater. The corrosion will make the surface of the bolt uneven, affecting the sealing performance and fastening force between the bolt and the object. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a cement bolt with locking sawteeth to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A cement bolt with locking sawteeth, including a stop portion, characterized in that a screw head is fixedly connected to the top of the stop portion, a screw rod assembly is arranged at the bottom of the stop portion, and a sealing assembly for protecting the screw head is arranged at the top of the stop portion;

[0006] The sealing assembly includes a rubber block arranged at the top of the stop portion. A penetration groove is opened at the bottom of the rubber block. A storage groove is opened at the inner wall of the top end of the penetration groove. The stop portion is inserted and connected inside the penetration groove. The screw head is inserted and connected inside the storage groove. A fixing member for fixing the position of the rubber block is arranged at the connection between the screw head and the storage groove.

[0007] Preferably, the fixing member includes an elastic block fixedly connected inside the storage groove. A positioning groove adapted to the elastic block is opened on the outer wall of the screw head. The elastic block is inserted and connected inside the positioning groove.

[0008] Preferably, the horizontal cross-section of the storage groove is hexagonal.

[0009] Preferably, the screw rod assembly includes a straight rod fixedly connected to the bottom end of the stop portion. A thread unit is opened at the bottom of the straight rod.

[0010] Preferably, a plurality of notches are symmetrically opened at the center of the outer wall of the thread unit. The horizontal cross-section of the notch is V-shaped.

[0011] Preferably, a plurality of saw teeth are symmetrically arranged at the center of the bottom end of the blocking portion.

[0012] Preferably, a plurality of anti-slip grooves for anti-slip are formed on the outer wall of the rubber block, and the horizontal longitudinal section of the anti-slip groove is semicircular.

[0013] Technical effects and advantages of the present utility model:

[0014] Through the design of the rubber block, the receiving groove, the penetrating groove and the fixing member, after an object is fixed by the bolt, the rubber block is sleeved on the outer walls of the blocking portion and the screw head through the penetrating groove and the receiving groove, and one end of the rubber block is pressed against the object. The gap between the rubber block and the object is filled by the deformation of the rubber block under extrusion, and finally the position of the rubber block is fixed by the fixing member, so that rainwater cannot contact the blocking portion and the screw head in rainy weather, avoiding corrosion of the two by rainwater during use. Brief Description of the Drawings

[0015] Figure 1 is a schematic perspective view of the whole of the present utility model.

[0016] Figure 2 is a schematic front view of the present utility model.

[0017] Figure 3 is a schematic front sectional view of the present utility model.

[0018] Figure 4 is a schematic partial perspective view of the present utility model I.

[0019] Figure 5 is a schematic partial perspective view of the present utility model II.

[0020] In the figure: 1, blocking portion; 2, screw rod assembly; 201, straight rod; 202, thread unit; 203, notch; 3, screw head; 4, sealing assembly; 401, rubber block; 402, receiving groove; 403, positioning groove; 404, elastic block; 405, penetrating groove; 5, saw tooth; 6, anti-slip groove. Detailed Description of the Embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0022] The present utility model provides asFigures 1-5 A cement bolt with locking sawteeth as shown includes a stop portion 1. A screw head 3 is fixedly connected to the top of the stop portion 1. A screw rod assembly 2 is arranged at the bottom of the stop portion 1. A sealing assembly 4 for protecting the screw head 3 is arranged at the top of the stop portion 1. The sealing assembly 4 includes a rubber block 401 arranged at the top of the stop portion 1. A penetrating groove 405 is formed at the bottom of the rubber block 401. A storage groove 402 is formed on the inner wall of the top end of the penetrating groove 405. The stop portion 1 is inserted into the inside of the penetrating groove 405. The screw head 3 is inserted into the inside of the storage groove 402. A fixing member for fixing the position of the rubber block 401 is arranged at the connection between the screw head 3 and the storage groove 402. The fixing member includes an elastic block 404 fixedly connected to the inside of the storage groove 402. A positioning groove 403 adapted to the elastic block 404 is formed on the outer wall of the screw head 3. The elastic block 404 is inserted into the inside of the positioning groove 403. The horizontal transverse cross-section of the storage groove 402 is hexagonal.

[0023] It should be noted that the rubber block 401 and the elastic block 404 are both made of rubber. During production, they can be formed simultaneously through a mold. The rubber material has the characteristic of being deformable and will deform when subjected to extrusion. The formed penetrating groove 405 is adapted to the arranged stop portion 1, and the formed storage groove 402 is adapted to the arranged screw head 3. During use, the stop portion 1 and the screw head 3 are inserted into the inside of the rubber block 401 through the two formed grooves, and one end of the rubber block 401 is pressed against an object. The gap between the rubber block 401 and the object is filled through the deformation of the rubber block 401 caused by extrusion, so that rainwater cannot contact the stop portion 1 and the screw head 3 during rainy weather, avoiding corrosion of the two by rainwater during use. When the position of the rubber block 401 needs to be fixed, when the rubber block 401 is sleeved on the screw head 3, the elastic block 404 is extruded and deformed by the screw head 3. When the elastic block 404 moves to one side of the positioning groove 403, the elastic block 404 resumes deformation and moves into the inside of the positioning groove 403. Due to the limitation of the positioning groove 403, the elastic block 404 cannot continue to move, so the position of the rubber block 401 is fixed by restricting the movement of the elastic block 404. When the rubber block 401 needs to be removed from the top of the cement bolt, by pulling the rubber block 401, the elastic block 404 located inside the positioning groove 403 deforms and moves out of the positioning groove 403.

[0024] Specifically, the screw rod assembly 2 includes a straight rod 201 fixedly connected to the bottom end of the stop portion 1. A thread unit 202 is formed at the bottom of the straight rod 201. A plurality of notches 203 are symmetrically arranged on the outer wall of the thread unit 202. The horizontal transverse cross-section of the notches 203 is V-shaped.

[0025] It should be noted that the notch 203 is located on several threads at the end of the thread unit 202 away from the straight rod 201. The "V"-shaped notch 203 is more convenient for cleaning the inside of the cement mixed in, tapping threads on the cement hole wall, and has a good installation effect. It also further facilitates the discharge of concrete residues to the outside, improves the installation ability of the anchor bolt, and makes the installation convenient.

[0026] Furthermore, when an object needs to be fixed on the cement surface, first drill a required hole on the cement surface with a drill bit or other tools, then place the object on the cement surface, remove the cement bolt, insert one end of the cement bolt into the hole, tap threads through the thread unit 202 and the inside of the notch 203 on the cement bolt, and fix the cement bolt in the hole to fix the position of the object through the cement bolt at the fixed position.

[0027] Specifically, a plurality of saw teeth 5 are symmetrically arranged at the center of the bottom end of the stop portion 1.

[0028] It should be noted that saw teeth 5 are provided at the bottom of the stop portion 1 to increase its blocking force and prevent the bolt from loosening during use, so that the cement bolt has a self-locking function through the design of the saw teeth 5.

[0029] Specifically, a plurality of anti-slip grooves 6 for anti-slip are provided on the outer wall of the rubber block 401, and the horizontal longitudinal section of the anti-slip groove 6 is set to be semi-circular.

[0030] It should be noted that the anti-slip grooves 6 provided on the outer wall of the rubber block 401 are mainly to enhance the pulling of the rubber block 401, increase the contact area between the rubber block 401 and the hand of the puller, thereby increasing the friction and stability between the hand of the puller and the rubber block 401, and making the pulling process more stable and safe.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cement bolt with locking serrations, comprising a stopper (1), characterized in that: A screw head (3) is fixedly connected to the top of the stopper (1), a screw assembly (2) is arranged at the bottom of the stopper (1), and a sealing assembly (4) for protecting the screw head (3) is arranged at the top of the stopper (1); The sealing assembly (4) comprises a rubber block (401) arranged at the top of the stopper (1); a penetration groove (405) is provided at the bottom of the rubber block (401); a receiving groove (402) is provided on the inner wall of the top of the penetration groove (405); the stopper (1) is inserted and connected inside the penetration groove (405); the screw head (3) is inserted and connected inside the receiving groove (402); and a fixing piece for fixing the position of the rubber block (401) is provided at the connection between the screw head (3) and the receiving groove (402).

2. A cement bolt with locking serrations according to claim 1, characterized in that: The fixing member comprises an elastic block (404) fixedly connected to the inside of the receiving groove (402); the outer wall of the screw head (3) is provided with a positioning groove (403) adapted to the elastic block (404); and the elastic block (404) is inserted and connected to the inside of the positioning groove (403).

3. A cement bolt with locking serrations according to claim 1, characterized in that: The horizontal transverse cross section of the storage groove (402) is configured as a hexagon.

4. A cement bolt with locking serrations according to claim 1, characterized in that: The screw rod assembly (2) comprises a straight rod (201) fixedly connected to the bottom end of the stopper (1), and a threaded unit (202) is provided at the bottom of the straight rod (201).

5. A cement bolt with locking serrations according to claim 4, characterized in that: The outer wall of the threaded unit (202) is provided with a plurality of notches (203) symmetrically arranged at the center, and the horizontal transverse cross-section of the notch (203) is arranged to be V-shaped.

6. A cement bolt with locking serrations according to claim 1, characterized in that: A plurality of saw teeth (5) are symmetrically arranged at the bottom end of the stop portion (1).

7. A cement bolt with locking serrations according to claim 1, characterized in that: The outer wall of the rubber block (401) is provided with a plurality of anti-skid grooves (6) for preventing skidding, and the horizontal longitudinal cross-section of the anti-skid groove (6) is arranged to be semicircular.

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