Stud bolt quick tightening mechanism

Abstract

The utility model belongs to the technical field of bolt installation, and particularly relates to a stud bolt quick tightening mechanism which comprises an adjusting mechanism and a meshing mechanism, the adjusting mechanism comprises a supporting column, a handle rod, a three-jaw chuck, a clamping jaw and a connecting hole, the handle rod is arranged on the supporting column, the three-jaw chuck is arranged on the top of the supporting column, the clamping jaw is arranged on the three-jaw chuck, and the meshing mechanism is arranged on the three-jaw chuck. A connecting hole is formed in the clamping jaw; the meshing mechanism is arranged on the clamping jaw, the meshing mechanism comprises a fixed block, a movable block, an adjusting lead screw, teeth and a connecting bolt, the meshing mechanism is driven by the three-jaw chuck to be opened and closed, the meshing mechanism can be connected with studs with different diameters, and the fixed block and the movable block of the meshing mechanism are meshed with the studs through the teeth. After meshing, the adjusting lead screw is rotated, the movable block is made to be close to the fixed block, and therefore the meshing mechanism is locked outside the stud, rotation operation is conducted through a handle rod of the adjusting mechanism, connection with the stud is facilitated, and operation and use are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of bolt installation technology, specifically a double-headed bolt quick tightening mechanism. Background Art

[0002] A stud bolt, also called a double-ended bolt or double-ended stud, is used for fixing and connecting machinery. It has threads on both ends, with a central thread that can be either thick or thin. They are commonly used in mining machinery, bridges, automobiles, motorcycles, boiler steel structures, cranes, large-span steel structures, and large buildings.

[0003] For ordinary double-ended bolts, the common installation method is to screw a pair of nuts into the same side of the double-ended bolt and then tighten them together. The additional tension and friction provided by the mutual push of the two nuts make the three approximately function as a whole, and then tighten or loosen them with a wrench.

[0004] This method requires two bolts to be installed and tightened before use, and then the nuts are rotated with a wrench. It is quite laborious to install and remove the nuts, and the bolts must be brought in advance. Without the bolts, it cannot be used. Therefore, this application proposes a double-headed bolt quick tightening mechanism. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] In view of the problems existing in the above and / or existing double-ended bolt quick tightening mechanisms, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a quick tightening mechanism for double-ended bolts. A three-jaw chuck drives the meshing mechanism to open and close, enabling the meshing mechanism to connect with double-ended bolts of different diameters. The fixed block and the movable block of the meshing mechanism engage with the double-ended bolt through teeth. After engagement, rotating the adjusting screw moves the movable block closer to the fixed block, thereby locking the meshing mechanism outside the double-ended bolt. The mechanism can be rotated by the handle rod of the adjusting mechanism, facilitating connection with the double-ended bolt and making it easy to operate.

[0008] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0009] A quick-tightening mechanism for double-ended bolts, comprising:

[0010] The adjustment mechanism includes a support column, a handle rod, a three-jaw chuck, a clamp, and a connecting hole. The handle rod is provided on the support column, the three-jaw chuck is provided on the top of the support column, the clamp is provided on the three-jaw chuck, and the connecting hole is provided on the clamp.

[0011] A meshing mechanism is provided on the gripper. The meshing mechanism includes a fixed block, a movable block, an adjusting screw, teeth, and a connecting bolt. The fixed block is connected to the connecting hole by the connecting bolt. The movable block is inserted into the top of the fixed block. An adjusting screw is provided between the movable block and the fixed block. Teeth are provided on the inner sides of both the fixed block and the movable block.

[0012] As a preferred embodiment of the double-headed bolt quick tightening mechanism described in this utility model, both sides of the handle are provided with anti-slip mesh.

[0013] As a preferred embodiment of the double-headed bolt quick tightening mechanism of this utility model, the clamping claw is an L-shaped claw, and the connecting hole is a screw hole.

[0014] As a preferred embodiment of the double-headed bolt quick tightening mechanism of this utility model, both the fixed block and the movable block are L-shaped blocks, and the fixed block and the movable block are flush with the side facing the center of the three-jaw chuck.

[0015] In a preferred embodiment of the double-headed bolt quick tightening mechanism of this utility model, the bottom of the adjusting screw is rotatably connected to the fixed block, and the movable block is screwed onto the adjusting screw.

[0016] As a preferred embodiment of the double-headed bolt quick tightening mechanism of this utility model, the support column is provided with a transverse insertion hole, and the handle rod is inserted into the insertion hole.

[0017] As a preferred embodiment of the double-headed bolt quick tightening mechanism of this utility model, the handle rod is provided with limit balls at both ends.

[0018] Compared with the prior art, the adjustment mechanism of this utility model is connected to the engagement mechanism by a three-jaw chuck. The three-jaw chuck drives the engagement mechanism to open and close, enabling the engagement mechanism to connect with double-ended bolts of different diameters. The fixed block and the movable block of the engagement mechanism are engaged with the double-ended bolts by teeth. After engagement, rotating the adjustment screw moves the movable block closer to the fixed block, thereby locking the engagement mechanism outside the double-ended bolt. The adjustment mechanism can be rotated by the handle rod, which facilitates connection with the double-ended bolts and makes it easy to operate. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. 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. Among them:

[0020] Figure 1 This is a schematic diagram of the axonal structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model;

[0022] Figure 3 This is a schematic diagram of the meshing mechanism of this utility model.

[0023] In the diagram: 100 Adjustment mechanism, 110 Support column, 120 Handle rod, 130 Three-jaw chuck, 140 Clamping jaw, 150 Connecting hole, 200 Engaging mechanism, 210 Fixed block, 220 Moving block, 230 Adjusting screw, 240 Tooth, 250 Connecting bolt. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] This utility model provides a quick-tightening mechanism for double-ended studs. A three-jaw chuck drives the engagement mechanism to open and close, allowing it to connect with double-ended studs of different diameters. Both the fixed and movable blocks of the engagement mechanism engage with the double-ended studs via teeth. After engagement, rotating the adjusting screw moves the movable block closer to the fixed block, thus locking the engagement mechanism outside the double-ended stud. The mechanism is operated by rotating the handle, facilitating connection with double-ended studs and providing ease of use. Please refer to [link / reference]. Figures 1-3 It includes: adjustment mechanism 100 and engagement mechanism 200.

[0029] The adjustment mechanism 100 includes a support column 110, a handle 120, a three-jaw chuck 130, a jaw 140, and a connecting hole 150. The handle 120 is provided on the support column 110, the three-jaw chuck 130 is provided on the top of the support column 110, the jaw 140 is provided on the three-jaw chuck 130, and the connecting hole 150 is provided on the jaw 140.

[0030] The gripper 140 is an L-shaped gripper, the connecting hole 150 is a screw hole, the support column 110 has a horizontal insertion hole, the handle rod 120 is inserted into the insertion hole, the handle rod 120 can slide back and forth to adjust the length of the extended rod arm, and it is used as a lever for rotation operation. The three-jaw chuck 130 drives the gripper 140 to move, and the gripper 140 is connected to the meshing mechanism 200.

[0031] The meshing mechanism 200 is mounted on the gripper 140. The meshing mechanism 200 includes a fixed block 210, a movable block 220, an adjusting screw 230, teeth 240, and a connecting bolt 250. The fixed block 210 is connected to the connecting hole 150 by the connecting bolt 250. The movable block 220 is inserted into the top of the fixed block 210. The adjusting screw 230 is provided between the movable block 220 and the fixed block 210. Teeth 240 are provided on the inner sides of both the fixed block 210 and the movable block 220.

[0032] The adjusting screw 230 is rotatably connected to the fixed block 210 at its bottom, and the movable block 220 is screwed onto the adjusting screw 230. Rotating the adjusting screw 230 causes the movable block 220 to engage with the top of the fixed block 210 under the feed action of the thread. Both the fixed block 210 and the movable block 220 are engaged with the external threads of the double-ended bolt through teeth 240. After connection, rotating the adjusting screw 230 causes the movable block 220 to move closer to the fixed block 210. The teeth 240 on the outside of the movable block 220 move closer to the fixed block 210, which is the same principle as the double nut locking mechanism, thus locking the fixed block 210 and the movable block 220 onto the double-ended bolt.

[0033] Since rotation is required, both sides of the handle 120 are equipped with anti-slip textured mesh to facilitate gripping and improve anti-slip performance.

[0034] Since the fixed block 210 and the movable block 220 need to fit against the double-headed bolt, both the fixed block 210 and the movable block 220 are L-shaped blocks, and the fixed block 210 and the movable block 220 are flush with the side facing the center of the three-jaw chuck 130.

[0035] To prevent the hand from slipping off the end of the handle 120 during operation, limit balls are provided at both ends of the handle 120 for limiting.

[0036] In practical use, the three-jaw chuck 130 drives the jaws 140 to move, and the jaws 140 drives the engagement mechanism 200 to move, causing the engagement mechanism 200 to open and close. After opening and closing, the engagement mechanism 200 is placed at one end of the double-ended bolt. Then, the three-jaw chuck 130 is rotated so that the engagement mechanism 200 is clamped on the double-ended bolt. During clamping, the fixed block 210 and the movable block 220 are both engaged with the external threads of the double-ended bolt by the teeth 240. Then, the adjusting screw 230 is rotated so that the movable block 220 is close to the fixed block 210. The teeth 240 on the outside of the movable block 220 move closer to the fixed block 210, so that the fixed block 210 and the movable block 220 are locked on the double-ended bolt. Then, the handle rod 120 is rotated to drive the double-ended bolt to rotate for tightening and loosening.

[0037] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A quick-tightening mechanism for double-ended bolts, characterized in that, include: The adjustment mechanism (100) includes a support column (110), a handle (120), a three-jaw chuck (130), a jaw (140), and a connecting hole (150). The handle (120) is provided on the support column (110), the three-jaw chuck (130) is provided on the top of the support column (110), the jaw (140) is provided on the three-jaw chuck (130), and the connecting hole (150) is provided on the jaw (140). A meshing mechanism (200) is disposed on the gripper (140). The meshing mechanism (200) includes a fixed block (210), a movable block (220), an adjusting screw (230), teeth (240), and a connecting bolt (250). The fixed block (210) is connected to the connecting hole (150) by the connecting bolt (250). The movable block (220) is inserted into the top of the fixed block (210). An adjusting screw (230) is disposed between the movable block (220) and the fixed block (210). Teeth (240) are disposed on the inner sides of both the fixed block (210) and the movable block (220).

2. The double-ended bolt quick-tightening mechanism according to claim 1, characterized in that, Both sides of the handle (120) are provided with anti-slip mesh.

3. The double-ended bolt quick-tightening mechanism according to claim 1, characterized in that, The gripper (140) is an L-shaped gripper, and the connecting hole (150) is a screw hole.

4. The double-ended bolt quick-tightening mechanism according to claim 1, characterized in that, Both the fixed block (210) and the movable block (220) are L-shaped blocks, and the fixed block (210) and the movable block (220) are flush with the side facing the center of the three-jaw chuck (130).

5. The double-ended bolt quick-tightening mechanism according to claim 1, characterized in that, The bottom of the adjusting screw (230) is rotatably connected to the fixed block (210), and the movable block (220) is screwed onto the adjusting screw (230).

6. The double-ended bolt quick-tightening mechanism according to claim 1, characterized in that, The support column (110) has a horizontal insertion hole, and the handle rod (120) is inserted into the insertion hole.

7. The double-ended bolt quick-tightening mechanism according to claim 1, characterized in that, Both ends of the handle rod (120) are provided with limit balls.

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