Bolt fastening tool

Abstract

The utility model relates to the technical field of bolt fastening, and provides a bolt fastening tool which comprises a main supporting rod, two sets of fixing frames, a rotating frame, a connecting rod, an unfolding rod, a pressing rod, a telescopic rod, a motor and a bolt head, the telescopic rod is arranged in the main supporting rod in a sliding mode, and the two sets of fixing frames are fixedly arranged on the main supporting rod. A rotating frame is arranged on the main supporting rod in a sliding mode, the fixing frame is connected with the pressing rod through a plurality of sets of unfolding rods, the rotating frame is connected with the unfolding rods through connecting rods, a motor is fixedly arranged on the telescopic rod, and a bolt head is fixedly arranged at the output end of the motor. And when the bolt in the far-end slit is fastened, the device is fixed by matching the connecting rod and the pressing rod with the environment, so that the use experience and the working efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt fastening, in particular to a bolt fastening tool. Background Art

[0002] In architectural design, there are narrow environments such as pipelines and air ducts, and special bolt fastening tools are required for fastening. Due to the limitations of the structural form, in actual projects, one or two side walls of the ventilation shaft are often cast-in-place concrete walls, resulting in the inability to fasten the connection bolts of the air ducts close to the structural wall, especially those with long side lengths and small spaces. During the use of overly long fastening tools, the overly long and heavy fastening tools are not convenient for operation.

[0003] As shown in the application number: CN202310968021.1, a bolt fastening tool for a distal slit vertical air duct includes a locking assembly and a connecting assembly. The locking assembly is used to lock the bolt at the air duct connection. The connecting assembly includes a chain structure with a hollow interior. The chain structure is connected to the locking assembly. The chain structure includes a number of first chain blocks and a number of second chain blocks. The number of first chain blocks are arranged at equal intervals along the direction of the first flexible shaft. A first space is formed between adjacent two first chain blocks. The number of second chain blocks are in one-to-one correspondence with the number of first spaces. Any one of the second chain blocks is filled in the first space. The first chain blocks and the second chain blocks are hinged to each other. By providing the chain structure, since the chain structure is formed by the mutual hinge connection of the first chain blocks and the second chain blocks.

[0004] When the above-mentioned fastening tool penetrates into the slit, the overly long and heavy fastening tool is not convenient for operation, and it requires the operator to spend too much energy to control, reducing work efficiency. Summary of the Utility Model

[0005] In order to solve the problem of the lack of support for the bolt fastening tool in the slit, the utility model provides a bolt fastening tool to solve this problem.

[0006] To achieve the above object, the utility model provides the following technical solutions:

[0007] A bolt fastening tool includes a main support rod, a fixed frame, a rotating frame, a connecting rod, an expansion rod, a pressing rod, a telescopic rod, a motor, and a bolt head. There are two groups of fixed frames, and the two groups of fixed frames are fixedly arranged on the main support rod. The rotating frame is cooperatively arranged on the main support rod. One end of the expansion rod is rotatably arranged on the fixed frame, and the other end of the expansion rod is fixedly arranged on the pressing rod. One end of the connecting rod is rotatably arranged on the rotating frame, and the other end of the connecting rod is rotatably arranged on the expansion rod. The telescopic rod is slidably arranged in the main support rod. A motor is arranged on the telescopic rod, and the output end of the motor is fixedly arranged with a bolt head.

[0008] Preferably, the distance between the two fixing brackets fixedly arranged on the main support rod is the same as the distance between the two unfolding rods on the pressing rod.

[0009] Preferably, the rotating frame is rotatably arranged on the screwing ring. There is a rotating groove on the screwing ring, and the rotating frame is rotatably arranged on the rotating groove. There is a rotating thread inside the screwing ring, and one end of the main support rod is provided with a driven thread. The rotating thread and the driven thread on the main support rod are arranged in cooperation.

[0010] Preferably, one end of the telescopic rod is fixedly provided with a holding handle, and the other end of the telescopic rod is fixedly provided with a limiting plate. The limiting plate is slidably arranged in the operation chamber. A driving shaft rod is rotatably arranged inside the telescopic rod. One end of the driving shaft rod is fixedly provided with a rotating handle, and the other end of the driving shaft rod is fixedly provided with a driving gear.

[0011] Preferably, a sliding groove is opened on the operation chamber, and the telescopic rod is slidably arranged in the sliding groove. A motor and a driving rack are fixedly arranged in the operation chamber. The output end of the motor extends out of the operation chamber and is fixedly connected with a bolt head. The driving rack is used in cooperation with the driving gear. A baffle is arranged on one side of the operation chamber. The bolt head itself is made of a magnetic material and can hold fastening heads of different models. A sponge gasket is fixedly arranged on the outer side of the pressing rod.

[0012] The advantages of the present utility model are as follows: By screwing the screwing ring to drive the unfolding rod to rotate, the pressing rod is unfolded outwards, and the pressing rod abuts against a wall pipe or the like, so that the device is fixedly arranged in a slit. The user can use the bolt fastening device more easily. The user can adjust the operation chamber to move back and forth and rotate freely through the holding handle on the telescopic rod, increasing the coverage range of the device. By operating the rotating handle to drive the driving gear, and through the cooperation of the driving gear and the driving rack, the operation chamber moves, so that the bolt head contacts the bolt to perform the bolt fastening work. Description of the Drawings

[0013] The attached drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0014] Figure 1 is the structural schematic diagram of the present utility model;

[0015] Figure 2 is the structural schematic diagram of the screwing ring of the present utility model;

[0016] Figure 3 is the structural schematic diagram of the operation chamber of the present utility model;

[0017] Figure 4It is a schematic structural diagram inside the operation chamber of the present utility model;

[0018] Figure 5 It is a schematic structural diagram of the operating rod group of the present utility model;

[0019] Explanation of reference numerals:

[0020] 1. Main support rod; 2. Fixed frame; 3. Rotating frame; 4. Telescopic rod; 5. Rotating handle; 6. Screwing ring; 7. Connecting rod; 8. Pressing rod; 9. Expanding rod; 10. Operation chamber; 11. Bolt head; 12. Sliding groove; 13. Driving gear; 14. Baffle; 15. Driving rack; 16. Motor; 17. Driving shaft rod; 18. Limiting plate; 19. Holding handle; 61. Rotating groove; 62. Rotating thread. Specific implementation mode

[0021] Example 1, in combination with Figure 1 is described as follows:

[0022] A bolt tightening tool, comprising: a main support rod 1, a fixed frame 2, a rotating frame 3, a connecting rod 7, an expanding rod 9, a pressing rod 8, a telescopic rod 4, a motor 16 and a bolt head 11. Two groups of fixed frames 2 are provided, and the two groups of fixed frames 2 are fixedly arranged on the main support rod 1. The rotating frame 3 is cooperatively arranged on the main support rod 1. One end of the expanding rod 9 is rotatably arranged on the fixed frame 2, and the other end of the expanding rod 9 is fixedly arranged on the pressing rod 8. One end of the connecting rod 7 is rotatably arranged on the rotating frame 3, and the other end of the connecting rod 7 is rotatably arranged on the expanding rod 9. The telescopic rod 4 is slidably arranged in the main support rod 1, and a motor 16 is arranged on the telescopic rod 4. The output end of the motor 16 is fixedly provided with a bolt head 1. The distance between the two groups of fixed frames 2 fixedly arranged on the main support rod 1 is the same as the distance between the two groups of expanding rods 9 on the pressing rod 8.

[0023] With such a setting, by the sliding of the rotating frame 3 on the main support rod 1, the connecting rod 7 drives the expanding rod 9 to expand outwards. The distance between the two groups of fixed frames 2 is the same as that on the pressing rod 8, so that the pressing rod 4 can expand outwards parallel to the main support rod 1. The pressing rod 8 expands outwards until it abuts against the surrounding environment, and the device can be fixed in the slit. The user can drive the motor 16 and the bolt head 11 through the telescopic rod 4 to make the bolt head 11 perform bolt tightening work.

[0024] Example 2, on the basis of Example 1, in combination with Figure 2 is described as follows:

[0025] The rotating frame 3 is rotatably arranged on the screwing ring 6. A rotating groove 61 is arranged on the screwing ring 6, and the rotating frame 3 is rotatably arranged on the rotating groove 61. A rotating thread 62 is arranged inside the screwing ring 6. One end of the main support rod 1 is provided with a driven thread, and the rotating thread 62 is arranged in cooperation with the driven thread on the main support rod 1.

[0026] With such an arrangement, the screwing ring 6 is arranged in cooperation with the main support rod 1. Through the rotating thread 62 on the screwing ring 6, the user drives it, so that the rotating frame 3 rotatably arranged on the rotating groove 61 moves on the main support rod 1. Through the movement of the rotating frame 3, the pressing rod 4 is unfolded to complete the fixation of the device.

[0027] Embodiment 3, on the basis of Embodiment 2, in combination with Figure 3 、 Figure 4 and Figure 5 is described as follows:

[0028] One end of the telescopic rod 4 is fixedly provided with a holding handle 19, and the other end of the telescopic rod 4 is fixedly provided with a limiting plate 18. The limiting plate 18 is slidably arranged in the operation chamber 10. A driving shaft rod 17 is rotatably arranged inside the telescopic rod 4. One end of the driving shaft rod 17 is fixedly provided with a rotating handle 5, and the other end of the driving shaft rod 17 is fixedly provided with a driving gear 13. A sliding groove 12 is formed on the operation chamber 10, and the telescopic rod 4 is slidably arranged in the sliding groove 12. A motor 16 and a driving rack 15 are fixedly arranged in the operation chamber 10. The output end of the motor 16 extends out of the operation chamber 10 and is fixedly connected with a bolt head 11. The driving rack 15 is used in cooperation with the driving gear 13. A baffle 14 is arranged on one side of the operation chamber 10.

[0029] With such an arrangement, the telescopic rod 4 is slidably arranged on the main support rod 1. The user can drive the telescopic rod 4 through the holding handle 19 to drive the operation chamber 10 on the telescopic rod 4 to move. Through the limiting plate 18 arranged on the telescopic rod 4, the operation chamber 10 can rotate following the telescopic rod 4 to adjust the angle of the operation chamber 10. The driving shaft rod 17 is rotatably arranged in the telescopic rod 4. The user can drive the driving gear 13 through the rotating handle 5. Through the cooperation of the driving gear 13 and the driving rack 15, the operation chamber 10 can move, so that the bolt head 11 contacts the bolt to perform the bolt tightening work.

[0030] Working principle of the utility model: The user drives the moving frame 3 to move by turning the ring 6, so that the connecting rod 7 on the moving frame 3 drives the unfolding rod 9. The unfolding rod 9 cooperates with the fixed frame 2 to move, so that the two pressing rods 8 can be unfolded outward in parallel. After the two pressing rods 8 are unfolded outward, they cooperate with the slit environment. By abutting the pressing rods 8 against the environment, the device is fixed in the slit, reducing the operation pressure of the user and enabling the user to complete the work more easily. By sliding the telescopic rod 4 arranged in the main support rod 1, the user can control the operation bin 10 to perform linear motion and rotation, improving the coverage range of the operation bin 10. By the drive shaft rod 17 rotatably arranged in the telescopic rod 4, the user can drive the drive gear 13. Through the cooperation of the drive gear 13 and the drive rack 15, the user can adjust the operation bin 10 to move forward and backward, so that the bolt head 11 cooperates with the bolt. By driving the bolt head 11 to rotate through the motor 16, the bolt tightening work is completed. The utility model has a simple structure and convenient operation. When tightening the bolt in the distal slit, the device is fixed by the cooperation of the connecting rod 7 and the pressing rod 8 with the environment, improving the use experience and work efficiency.

[0031] For those skilled in the art, the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0032] The above is only the preferred embodiment of the present utility model, and is not used to limit the present utility model. Any minor modifications, equivalent replacements and improvements made to the above embodiments based on the technical essence of the present utility model should be included in the protection scope of the technical solution of the present utility model.

Claims

1. A bolt tightening tool, characterized in that, Including: A main support rod (1), a fixing frame (2), a rotating frame (3), a connecting rod (7), an unfolding rod (9), a pressing rod (8), a telescopic rod (4), a motor (16) and a bolt head (11). There are two groups of fixing frames (2) which are fixedly arranged on the main support rod (1). The rotating frame (3) is cooperatively arranged on the main support rod (1). One end of the unfolding rod (9) is rotatably arranged on the fixing frame (2), and the other end of the unfolding rod (9) is fixedly arranged on the pressing rod (8). One end of the connecting rod (7) is rotatably arranged on the rotating frame (3), and the other end of the connecting rod (7) is rotatably arranged on the unfolding rod (9). The telescopic rod (4) is slidably arranged in the main support rod (1). A motor (16) is arranged on the telescopic rod (4), and the output end of the motor (16) is fixedly provided with a bolt head (11).

2. The bolt tightening tool according to claim 1, characterized in that, The distance between the two groups of fixing frames (2) fixedly arranged on the main support rod (1) is the same as the distance between the two groups of unfolding rods (9) on the pressing rod (8).

3. A bolt tightening tool according to claim 1, characterized in that, The rotating frame (3) is rotatably arranged on a screwing ring (6). There is a rotating groove (61) on the screwing ring (6), and the rotating frame (3) is rotatably arranged on the rotating groove (61). There is a rotating thread (62) inside the screwing ring (6), and there is a driven thread at one end of the main support rod (1). The rotating thread (62) and the driven thread on the main support rod (1) are cooperatively arranged.

4. A bolt tightening tool according to claim 1, characterized in that, One end of the telescopic rod (4) is fixedly provided with a holding handle (19), and the other end of the telescopic rod (4) is fixedly provided with a limiting plate (18). The limiting plate (18) is slidably arranged in an operation chamber (10). A driving shaft rod (17) is rotatably arranged inside the telescopic rod (4). One end of the driving shaft rod (17) is fixedly provided with a rotating handle (5), and the other end of the driving shaft rod (17) is fixedly provided with a driving gear (13).

5. A bolt tightening tool according to claim 4, characterized in that, A sliding groove (12) is formed on the operation chamber (10), and the telescopic rod (4) is slidably arranged in the sliding groove (12). A motor (16) and a driving rack (15) are fixedly arranged in the operation chamber (10). The output end of the motor (16) extends out of the operation chamber (10) and is fixedly connected to the bolt head (11). The driving rack (15) is used in cooperation with the driving gear (13). A baffle (14) is arranged on one side of the operation chamber (10).

6. A bolt tightening tool according to claim 1, wherein, The bolt head (11) is made of a magnetic material and can hold bolt fastening heads of different models. A sponge gasket is fixedly arranged on the outer side of the pressing rod (8).

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