A high-strength bolt fastening device for a steel structure factory building

CN224897073UActive Publication Date: 2026-10-27HENAN HUAFENG CONSTRUCTION ENGINEERING CO LTD
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Patent Information

Application Number
CN202522587397.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-05
Publication Date
2026-10-27
Estimated Expiration
2035-12-05

AI Technical Summary

Technical Problem

涂抹时需手动对准螺栓螺纹,为避免胶水浪费或漏涂,还需控制涂抹量与覆盖范围,尤其针对密集排列的螺栓或狭小空间内的作业,手动操作费时费力

Benefits of technology

[0012]与现有技术相比,本实用新型的有益效果是:通过握把与牛角的配合,方便工人将螺丝胶输送至螺丝的螺纹处,节约了手动涂胶的时间,还不影响正常紧固作业操作。液壶能储存大量胶水,水阀的设置能避免非工作时胶水流出造成浪费和堵塞,出液管的可拆装设计方便维护,避免胶水风干堵塞造成无法出液。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of fastening device of steel structure workshop high-strength bolt, belong to fastening tool technical field, including electric wrench assembly, including electric wrench main body, fixed ring of fixed installation in the electric wrench main body lateral wall, fixedly connected in the fixed sleeve of electric wrench main body lateral wall, fixedly connected in the handle of fixed sleeve lateral wall, and sleeve is clamped in the electric wrench main body output end.The utility model cooperates with the handle and the horn, conveniently worker transports screw glue to the thread of screw, saves the time consumed in traditional gluing mode frequently taking glue, aligning and smearing, and whole operation will not cause any interference to the conventional use of wrench.Liquid kettle can store a large amount of glue, the setting of water valve can avoid waste and blockage caused by glue flowing out during non-working time, the detachable design of liquid outlet pipe is convenient to maintain, avoid glue air-drying blockage to cause liquid outlet failure, and the problem of blocking wrench parts or polluting the environment after glue accidentally flows out.
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Description

Technical Field

[0001] This utility model belongs to the field of fastening tool technology, specifically relating to a fastening device for high-strength bolts in steel structure workshops. Background Technology

[0002] In industrial manufacturing, construction engineering, transportation and other fields, high-strength bolts serve as core connecting components, playing a crucial role in transmitting loads and ensuring the overall stability of structures or equipment. Their fastening quality directly determines the safety performance, service life, and operational reliability of equipment; therefore, the requirements for the fastening precision, consistency, and efficiency of high-strength bolts are far higher than those for ordinary bolts.

[0003] Traditional threadlocker application requires workers to stop using tightening tools like wrenches, take a separate container of glue, apply the glue to the bolt threads, and then pick up the tightening tools again to continue working. This process involves multiple steps and disrupts the continuity of the work. Applying the glue requires manual alignment with the bolt threads, and to avoid wasting glue or missing areas, the amount applied and the coverage area must be controlled. This is especially time-consuming and labor-intensive when working with densely packed bolts or in confined spaces. Utility Model Content

[0004] The purpose of this utility model is to provide a fastening device for high-strength bolts in steel structure workshops, aiming to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A fastening device for high-strength bolts in steel structure workshops includes an electric wrench assembly, comprising an electric wrench body, a fixing ring fixedly installed on the side wall of the electric wrench body, a fixing sleeve fixedly connected to the side wall of the electric wrench body, a handle fixedly connected to the side wall of the fixing sleeve, and a sleeve snapped into the output end of the electric wrench body. The spraying assembly includes a fixed bracket fixedly connected to the top of the fixed sleeve, a water valve fixedly connected to the inner wall of the fixed bracket, an outlet pipe threadedly connected to the end of the water valve, and a reservoir fixedly connected to the top of the fixed ring, wherein the end of the water valve is inserted into the side wall of the reservoir.

[0006] As a preferred embodiment of the present invention, the spraying assembly further includes a lid threadedly connected to the top of the liquid reservoir, and a one-way air valve fixedly connected to the center of the lid.

[0007] As a preferred embodiment of the present invention, the spraying assembly further includes a first connecting frame fixedly connected to the side wall of the electric wrench body, a cow horn rotatably connected to the side wall of the first connecting frame, and a connecting column fixedly connected to the side wall of the cow horn.

[0008] As a preferred embodiment of the present invention, the spraying assembly further includes a second connecting frame fixedly connected to the side wall of the fixed ring, a pump body rotatably connected to the side wall of the second connecting frame, and a piston column slidably contacting the inner wall of the pump body, the piston column being rotatably connected to the side wall of the connecting column.

[0009] As a preferred embodiment of the present invention, the liquid spraying assembly further includes an air pipe fixedly connected to the side wall of the pump body, and the end of the air pipe is inserted into the side wall of the liquid storage tank.

[0010] As a preferred embodiment of this utility model, a reset spring is provided inside the pump body, and a sealing ring is fitted and installed on the inner wall of the pump body.

[0011] As a preferred embodiment of this utility model, the side wall of the kettle lid is provided with anti-slip texture, and a sealing ring is adapted to be installed on the inner wall of the kettle lid.

[0012] Compared with existing technologies, the advantages of this utility model are: the combination of the handle and the horn makes it convenient for workers to deliver screw glue to the threads of the screw, saving time compared to manual glue application, and without affecting normal tightening operations. The liquid container can store a large amount of glue, and the water valve prevents glue from flowing out and causing waste and blockage when not in use. The detachable design of the dispensing pipe facilitates maintenance and prevents glue from drying out and clogging, thus preventing the glue from failing to dispense. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the wrench assembly structure of this utility model; Figure 3 This is a schematic diagram of the liquid spraying assembly structure of this utility model; Figure 4 This is an enlarged schematic diagram of the structure at point A of this utility model.

[0014] In the diagram: 100, electric wrench assembly; 101, electric wrench body; 102, retaining ring; 103, retaining sleeve; 104, handle; 105, socket; 200, spraying assembly; 201, fixing frame; 202, water valve; 203, liquid outlet pipe; 204, liquid reservoir; 205, reservoir lid; 206, one-way air valve; 207, first connecting frame; 208, horn; 209, connecting column; 210, piston column; 211, pump body; 212, second connecting frame; 213, air pipe. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0018] Example Reference Figure 1-4 This embodiment of the present invention provides a fastening device for high-strength bolts in steel structure factory buildings, comprising: The electric wrench assembly 100 includes an electric wrench body 101, a fixing ring 102 fixedly installed on the side wall of the electric wrench body 101, a fixing sleeve 103 fixedly connected to the side wall of the electric wrench body 101, a handle 104 fixedly connected to the side wall of the fixing sleeve 103, and a sleeve 105 snapped into the output end of the electric wrench body 101. The spraying assembly 200 includes a fixing bracket 201 fixedly connected to the top of the fixing sleeve 103, a water valve 202 fixedly connected to the inner wall of the fixing bracket 201, an outlet pipe 203 threadedly connected to the end of the water valve 202, and a liquid storage tank 204 fixedly connected to the top of the fixing ring 102. The end of the water valve 202 is inserted into the side wall of the liquid storage tank 204. Specifically, a retaining ring 102 is installed on the outer shell surface at the front end of the electric wrench body 101 to fix the liquid reservoir 204 located at its top. A retaining sleeve 103 is fixed to the outer shell surface at the front end of the electric wrench body 101 to fix the handle 104 located on its side. A socket 105 is snapped into the output end of the electric wrench body 101 and can be replaced in size as needed. A fixing bracket 201 is fixed to the top of the retaining sleeve 103, and a water valve 202 is fixed to its inner wall to control the flow of screwdriver adhesive when not in use. One end of the water valve 202 is connected to the liquid reservoir 204, and the other end is threaded to the outlet pipe 203. The outlet pipe 203 guides the screwdriver adhesive to the front end of the socket 105 and drips it onto the screw threads to reinforce the bolt connection.

[0019] The spray assembly 200 also includes a lid 205 threaded to the top of the reservoir 204, and a one-way valve 206 fixedly connected to the center of the lid 205. The side wall of the lid 205 has anti-slip texture, and the inner wall of the lid 205 is fitted with a sealing ring.

[0020] Furthermore, the top of the reservoir 204 is threadedly connected to the lid 205. A sealing ring is installed on the inner wall of the lid 205 to seal the reservoir 204. The surface of the lid 205 has anti-slip textures for easy opening and closing. A one-way valve 206 is fixed in the center of the lid 205 to maintain stable internal pressure in the reservoir 204 and ensure smoother liquid dispensing.

[0021] The spraying assembly 200 also includes a first connecting frame 207 fixedly connected to the side wall of the electric wrench body 101, a bull's horn 208 rotatably connected to the side wall of the first connecting frame 207, and a connecting post 209 fixedly connected to the side wall of the bull's horn 208. The spraying assembly 200 also includes a second connecting frame 212 fixedly connected to the side wall of the fixed ring 102, a pump body 211 rotatably connected to the side wall of the second connecting frame 212, and a piston column 210 slidably contacting the inner wall of the pump body 211. The piston column 210 is rotatably connected to the side wall of the connecting column 209. A return spring is installed inside the pump body 211, and a sealing ring is fitted on the inner wall of the pump body 211.

[0022] Preferably, the first connecting frame 207 is fixed to the side wall of the electric wrench body 101, and the horn 208 can rotate on its inner wall through the pin. The connecting column 209 is fixed to the side wall of the horn 208, and the piston column 210 is rotatably connected to the side wall of the connecting column 209. The end of the piston column 210 slides in contact with the inner wall of the pump body 211. The second connecting frame 212 is fixedly connected to the side wall of the fixing ring 102, and the pump body 211 is rotatably connected to the inner wall of the second connecting frame 212. When the horn 208 is held and the piston column 210 slides into the pump body 211, the pressure inside the pump body 211 increases. When the horn 208 is released, the return spring inside the pump body 211 resets the piston column 210.

[0023] The spray assembly 200 also includes an air pipe 213 fixedly connected to the side wall of the pump body 211, with the end of the air pipe 213 inserted into the side wall of the liquid reservoir 204.

[0024] It should be noted that holding the horn 208 increases the internal pressure of the pump body 211, and the compressed gas enters the liquid reservoir 204 through the air pipe 213 fixed to the side wall of the pump body 211, which increases the internal pressure of the liquid reservoir 204 and squeezes out the screw glue.

[0025] During use, the operator replaces the socket 105 with a suitable size according to the size of the bolt to be disassembled or assembled, and snaps it onto the output end of the electric wrench body 101. The operator unscrews the cap 205, adds sufficient screwdriver putty to the reservoir 204, then tightens the cap 205 and opens the water valve 202. The operator holds the handle 104 and fits the socket 105 onto the head of the bolt to be worked on. Simultaneously, the operator holds the horn 208 and presses it inward, driving the horn 208 to rotate around the pin of the first connecting frame 207; as the horn 208 rotates, it drives the piston pin 210 to slide into the pump body 211 through the connecting column 209, compressing the internal space of the pump body 211. The piston rod 210 compresses the internal space of the pump body 211, increasing the internal pressure. High-pressure gas is transported along the air pipe 213 to the reservoir 204, pushing the adhesive within the reservoir 204 towards the water valve 202. The adhesive then enters the outlet pipe 203 via the water valve 202 and, guided by the outlet pipe 203, precisely drips onto the bolt threads at the front end of the sleeve 105. After loosening the horn 208, the return spring inside the pump body 211 releases its elastic potential energy, pushing the piston rod 210 to slide outwards from the pump body 211, restoring the internal volume and pressure of the pump body 211. Simultaneously, the pressure inside the reservoir 204 decreases due to the outflow of adhesive, allowing outside air to enter the reservoir 204 through the one-way air valve 206, maintaining stable pressure inside the reservoir and preparing for the next spray. The staff then controlled the electric wrench body 101 to start, and its output end drove the socket 105 and the bolt to rotate, completing the bolt disassembly and assembly operation. After a period of time, the screw glue cured at the thread, realizing the reinforcement of the bolt connection.

[0026] In summary, the combination of the handle 104 and the horn 208 allows for the delivery of threadlocker adhesive to the bolt threads. Workers can simultaneously apply the adhesive during tightening operations, eliminating the need for separate manual application and saving time associated with frequent glue refills and alignment in traditional methods. Furthermore, the entire operation does not interfere with the regular use of the wrench. Simultaneously, the reservoir 204 holds a sufficient amount of adhesive, reducing the inconvenience of frequent refills from smaller containers. The water valve 202 blocks the adhesive flow when not in use, preventing glue leakage and waste due to poor container sealing, as well as the problems of accidental glue spillage clogging the wrench or contaminating the work environment. The detachable design of the dispensing pipe 203 solves the problem of glue drying and hardening, which can clog traditional fixed glue tools. This allows for timely disassembly, cleaning, or replacement, ensuring a consistently unobstructed dispensing channel and maintaining stable adhesive application results.

[0027] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0028] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0029] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A fastening device for high-strength bolts in steel structure workshops, characterized in that: include, The electric wrench assembly (100) includes an electric wrench body (101), a fixing ring (102) fixedly installed on the side wall of the electric wrench body (101), a fixing sleeve (103) fixedly connected to the side wall of the electric wrench body (101), a handle (104) fixedly connected to the side wall of the fixing sleeve (103), and a sleeve (105) snapped onto the output end of the electric wrench body (101). The spraying assembly (200) includes a fixed bracket (201) fixedly connected to the top of the fixed sleeve (103), a water valve (202) fixedly connected to the inner wall of the fixed bracket (201), an outlet pipe (203) threadedly connected to the end of the water valve (202), and a reservoir (204) fixedly connected to the top of the fixed ring (102), wherein the end of the water valve (202) is inserted into the side wall of the reservoir (204).

2. The fastening device for high-strength bolts in steel structure workshops according to claim 1, characterized in that: The spray assembly (200) also includes a lid (205) threaded to the top of the reservoir (204) and a one-way valve (206) fixedly connected to the center of the lid (205).

3. The fastening device for high-strength bolts in steel structure workshops according to claim 2, characterized in that: The spraying assembly (200) further includes a first connecting frame (207) fixedly connected to the side wall of the electric wrench body (101), a bull horn (208) rotatably connected to the side wall of the first connecting frame (207), and a connecting post (209) fixedly connected to the side wall of the bull horn (208).

4. The fastening device for high-strength bolts in steel structure workshops according to claim 3, characterized in that: The spray assembly (200) further includes a second connecting frame (212) fixedly connected to the side wall of the fixed ring (102), a pump body (211) rotatably connected to the side wall of the second connecting frame (212), and a piston column (210) slidably contacting the inner wall of the pump body (211), the piston column (210) being rotatably connected to the side wall of the connecting column (209).

5. The fastening device for high-strength bolts in steel structure workshops according to claim 4, characterized in that: The spray assembly (200) also includes an air pipe (213) fixedly connected to the side wall of the pump body (211), with the end of the air pipe (213) inserted into the side wall of the liquid reservoir (204).

6. The fastening device for high-strength bolts in steel structure workshops according to claim 5, characterized in that: The pump body (211) is equipped with a reset spring inside, and a sealing ring is fitted on the inner wall of the pump body (211).

7. The fastening device for high-strength bolts in steel structure workshops according to claim 6, characterized in that: The side wall of the lid (205) is provided with anti-slip texture, and the inner wall of the lid (205) is fitted with a sealing ring.