Bolt twisting device for preventing excessive fastening in bolt fastening process

Abstract

The utility model discloses a bolt twisting device for preventing excessive fastening in the bolt fastening process, and relates to the technical field of bolt twisting, the bolt twisting device comprises a device body, one side of the device body is provided with a through mounting port, a fastening ring is arranged in the mounting port, one side of the device body is provided with a threaded hole which is in through connection with the mounting port, and the threaded hole is provided with a threaded hole. The bolt twisting device comprises a fastening ring, a threaded hole is formed in the fastening ring, a screw is in threaded connection with the interior of the threaded hole, a stabilizing hole is formed in the position, corresponding to the threaded hole, of the fastening ring, the movable end of the screw is connected with the stabilizing hole in an inserted mode, sliding grooves distributed in a circumferential array mode are formed in the inner wall of the fastening ring, and threaded rods are slidably connected into the sliding grooves. According to the bolt twisting device, the movable threaded rod is arranged, so that the position of the clinging plate can be adjusted, the bolt twisting device can conveniently fasten bolts of different sizes, the device is easy to operate and convenient to use, and the applicability of the bolt twisting device can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt twisting, in particular to a bolt twisting device for preventing over-tightening during the bolt tightening process. Background Art

[0002] Bolts are currently used to fasten equipment and components during on-site equipment maintenance and installation, particularly in areas such as flange management, pressure sealing, welding, and non-destructive testing. Bolts are also used in a wide range of fields, including nuclear power, petrochemicals, shipbuilding, offshore oil, engineering machinery, metallurgy, natural gas, and marine engineering. Bolts are cylindrical, threaded fasteners used for mechanical parts and paired with nuts. These fasteners consist of a head and a shank (a cylindrical body with external threads). They are used with a nut to securely connect two parts with through-holes. This type of connection is called a bolted connection.

[0003] The bolt tightening process generally requires the use of twisting tools or devices such as wrenches. However, the current twisting tools such as wrenches have a single structure. Since the fixed positions of the equipment are different, the types and sizes of the bolts used are also different. Therefore, corresponding types of wrenches and other tools need to be used. This results in low applicability of the bolt twisting device and increases the number and complexity of using the bolt twisting device. Utility Model Content

[0004] The purpose of the utility model is to provide a bolt twisting device for preventing over-tightening during the bolt tightening process, so as to solve the problem of low applicability of the bolt twisting device currently used for tightening bolts proposed in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for preventing a bolt from twisting during over-tightening of the bolt, comprising a device body, a through-type mounting port being provided on one side of the device body, a fastening ring being provided in the mounting port, a threaded hole being provided on one side of the device body and connected to the mounting port, a screw being threadedly connected in the threaded hole, a stabilizing hole being provided at a corresponding position of the fastening ring relative to the threaded hole, the movable end of the screw being plugged into the stabilizing hole, a sliding groove distributed in a circumferential array being provided on the inner wall of the fastening ring, a threaded rod being slidably connected in the sliding groove, the movable end of the threaded rod being fixedly connected to a close-fitting plate, a threaded ring being rotatably connected to the inner wall of the sliding groove, and the threaded ring being threadedly sleeved on the outer side of the threaded rod.

[0006] Preferably, the installation opening is a hexagonal cavity, the fastening ring is adapted to the installation opening cavity, and the fastening ring is a hexagonal structure.

[0007] Preferably, sensing blocks distributed in a circumferential array are installed on the inner wall of the mounting port, sensing plates are provided on both sides of the sensing blocks, grooves are provided at corresponding positions of the fastening ring relative to each sensing block, the sensing blocks are arranged in the groove cavities, a pry bar is fixedly connected to one side of the device body, a display screen and a pressure sensor are installed in a side groove opened on one side of the pry bar, a battery is installed in a placement groove opened at the movable end of the pry bar, the battery is electrically connected to the pressure sensor, and the pressure sensor is electrically connected to the display screen and the sensing plate.

[0008] Preferably, a sealing cover plate is threadedly connected to the internal thread provided at the notch of the placement groove, and a spring is provided on one side of the sealing cover plate, and the spring is in contact with one side of the battery.

[0009] Preferably, one side of the fastening ring is rotatably connected to a bevel gear ring, a bevel gear is fixedly sleeved outside the threaded ring, the bevel gear ring is meshed with each bevel gear respectively, and the bevel gear ring and the bevel gear are vertically arranged.

[0010] Preferably, one side of the fastening ring is rotatably connected to an adjusting ring, the adjusting ring is fixedly connected to one side of the bevel gear ring, and the side of the adjusting ring facing away from the bevel gear ring is fixedly connected to circumferentially arrayed protrusions.

[0011] Preferably, wire rods are fixedly connected to the four corners of one side of the close-fitting plate, and wire grooves are opened at corresponding positions of the fastening ring relative to each wire rod. The wire rods are slidably connected to the wire grooves, and the wire rods are wrapped around the outside of the threaded rods.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The present application sets a movable threaded rod so that the position of the close contact plate can be adjusted, thereby facilitating the bolt twisting device to tighten bolts of different sizes. The device is simple to operate and easy to use, thus effectively improving the applicability of the bolt twisting device.

[0014] 2. This application sets up a sensing plate and a pressure sensor, so that the torque of the bolt twisting device can be detected, and the twisting force can be adjusted in time according to the material of the bolt, thereby avoiding damage to the bolt and the bolt twisting device caused by excessive tightening of the bolt, thereby effectively improving the service life of the bolt twisting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall three-dimensional schematic diagram of the bolt twisting device for preventing over-tightening during the bolt tightening process of the utility model;

[0016] Figure 2 This is a three-dimensional schematic diagram of the device body of the device for preventing over-tightening of a bolt during the tightening process of the utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the coordination of the pressure sensor and the display screen of the bolt twisting device for preventing over-tightening during the bolt tightening process of the utility model;

[0018] Figure 4 It is a three-dimensional schematic diagram of the cooperation between the threaded rod and the close-fitting plate of the bolt twisting device for preventing over-tightening during the bolt tightening process of the utility model.

[0019] Numbers in the figure: 1. Device body; 2. Mounting port; 3. Fastening ring; 4. Threaded rod; 5. Close-fitting plate; 6. Threaded ring; 7. Sensing block; 8. Pry bar; 9. Display screen; 10. Pressure sensor; 11. Battery; 12. Sealing cover; 13. Conical gear ring; 14. Bump; 15. Wire rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example: Figure 1 - Figure 4 As shown, the utility model provides a technical solution for a bolt twisting device for preventing over-tightening during the bolt tightening process, comprising a device body 1, a through-type mounting port 2 is provided on one side of the device body 1, a fastening ring 3 is provided in the mounting port 2, a threaded hole is provided on one side of the device body 1 and is connected to the mounting port 2, a screw is threadedly connected in the threaded hole, a stabilizing hole is provided at a corresponding position of the fastening ring 3 relative to the threaded hole, the movable end of the screw is plugged into the stabilizing hole, a sliding groove distributed in a circumferential array is provided on the inner wall of the fastening ring 3, a threaded rod 4 is slidably connected in the sliding groove, a close-fitting plate 5 is fixedly connected to the movable end of the threaded rod 4, a threaded ring 6 is rotatably connected to the inner wall of the sliding groove, and the threaded ring 6 is threadedly sleeved on the outer side of the threaded rod 4;

[0022] The threaded ring 6 is rotated according to the size of the nut on the bolt, and the threaded ring 6 drives the threaded rod 4 to slide in the slide groove, so that the various close-fitting plates 5 move closer to or farther away from the center of the installation opening 2. In this way, the device body 1 is adapted to the size of the bolt. Then, the nut on the bolt is inserted into the installation opening 2, and the various close-fitting plates 5 are in contact with the outer wall of the nut. Finally, the device body 1 is rotated to tighten the bolt.

[0023] like Figure 2 - Figure 4As shown, the mounting opening 2 is a hexagonal cavity, the fastening ring 3 is adapted to the cavity of the mounting opening 2, and the fastening ring 3 is a hexagonal structure.

[0024] like Figure 1 - Figure 3 As shown, a circular array of sensor blocks 7 are installed on the inner wall of the mounting opening 2, and a sensor plate is provided on both sides of the sensor block 7. A groove is provided at a corresponding position of the fastening ring 3 relative to each sensor block 7, and the sensor block 7 is arranged in the groove cavity. A pry bar 8 is fixedly connected to one side of the device body 1, and a display screen 9 and a pressure sensor 10 are installed in a side groove provided on one side of the pry bar 8. A battery 11 is installed in a placement groove provided on the movable end of the pry bar 8. The battery 11 is electrically connected to the pressure sensor 10, and the pressure sensor 10 is electrically connected to the display screen 9 and the sensor plate.

[0025] The pressure sensor 10 and the display screen 9 are powered by the battery 11;

[0026] The battery 11, pressure sensor 10 and display screen 9 used in this application are all purchased parts, which are selected according to the power and size requirements. The system for controlling the switch adopts the module provided by the corresponding merchant, and this application will not go into details.

[0027] When the bolt is tightened, the fastening ring 3 applies twisting pressure to the inner wall of the mounting opening 2 and the sensing block 7. The sensing plate on the sensing block 7 senses the pressure, which is received and processed by the pressure sensor 10. The processed data is displayed on the display screen 9, so that the staff can promptly understand the torque applied to the device body 1. The torque is compared with the torque that the bolt material can withstand, so as to avoid the problem of excessive or excessive torque that causes damage to the bolt.

[0028] The inner wall of the mounting opening 2 and the sensing block 7 share the pressure of the fastening ring 3, thereby preventing the sensing plate from being damaged.

[0029] like Figure 1 and Figure 2 As shown, a sealing cover plate 12 is threadedly connected to the internal thread provided at the notch of the placement groove, and a spring is provided on one side of the sealing cover plate 12, and the spring contacts one side of the battery 11;

[0030] The sealing cover plate 12 is used to seal and open the placement groove.

[0031] like Figure 1 and Figure 4 As shown, a bevel gear ring 13 is rotatably connected to one side of the fastening ring 3, and a bevel gear is fixedly sleeved on the outer side of the threaded ring 6. The bevel gear ring 13 is meshed with each bevel gear respectively, and the bevel gear ring 13 and the bevel gear are arranged vertically.

[0032] like Figure 1 and Figure 4As shown, one side of the fastening ring 3 is rotatably connected to an adjusting ring, the adjusting ring is fixedly connected to one side of the bevel gear ring 13, and the side of the adjusting ring facing away from the bevel gear ring 13 is fixedly connected to circumferentially arrayed protrusions 14;

[0033] By rotating the cam 14 , the cam 14 drives the bevel gear ring 13 to rotate via the adjusting ring, and the bevel gear ring 13 rotates together with the threaded rings 6 .

[0034] like Figure 1 and Figure 4 As shown, the four corners of one side of the close plate 5 are fixedly connected with wire rods 15, and the fastening ring 3 is provided with wire grooves at corresponding positions relative to each wire rod 15. The wire rods 15 are slidably connected to the wire grooves, and the wire rods 15 are wrapped around the outside of the threaded rod 4;

[0035] The cooperation between the wire rod 15 and the wire groove can prevent the threaded rod 4 from rotating in the sliding groove and enable the threaded rod 4 to slide in the sliding groove.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A bolt twisting device for preventing over-tightening during bolt tightening, characterized by: The invention comprises a device body (1), a through-type installation opening (2) is provided on one side of the device body (1), a fastening ring (3) is provided in the installation opening (2), a sliding groove distributed in a circumferential array is provided on the inner wall of the fastening ring (3), a threaded rod (4) is slidably connected in the sliding groove, a close-fitting plate (5) is fixedly connected to the movable end of the threaded rod (4), a threaded ring (6) is rotatably connected to the inner wall of the sliding groove, and the threaded ring (6) is threadedly sleeved on the outer side of the threaded rod (4).

2. The device for preventing over-tightening of a bolt during tightening according to claim 1, characterized in that: The installation opening (2) is a hexagonal cavity, the fastening ring (3) is adapted to the cavity of the installation opening (2), and the fastening ring (3) is a hexagonal structure.

3. The device for preventing over-tightening of a bolt during tightening according to claim 1, characterized in that: The inner wall of the mounting opening (2) is provided with sensing blocks (7) distributed in a circumferential array, and sensing plates are provided on both sides of the sensing blocks (7). A crowbar (8) is fixedly connected to one side of the device body (1), and a display screen (9) and a pressure sensor (10) are installed in a side groove opened on one side of the crowbar (8), and a battery (11) is installed in a placement groove opened at the movable end of the crowbar (8).

4. The device for preventing over-tightening of a bolt during tightening according to claim 3, characterized in that: A sealing cover plate (12) is threadedly connected to the internal thread provided at the notch of the placement groove, and a spring is provided on one side of the sealing cover plate (12), and the spring contacts one side of the battery (11).

5. The device for preventing over-tightening of a bolt during tightening according to claim 1, characterized in that: One side of the fastening ring (3) is rotatably connected to a bevel gear ring (13), and a bevel gear is provided on the fixed sleeve outside the threaded ring (6). The bevel gear ring (13) is meshedly connected to each bevel gear.

6. The device for preventing over-tightening of a bolt during tightening according to claim 1, characterized in that: One side of the fastening ring (3) is rotatably connected to an adjustment ring, the adjustment ring is fixedly connected to one side of the bevel gear ring (13), and the side of the adjustment ring facing away from the bevel gear ring (13) is fixedly connected to convex blocks (14) distributed in a circumferential array.

7. The device for preventing over-tightening of a bolt during tightening according to claim 1, characterized in that: The four corners of one side of the close-fitting plate (5) are fixedly connected to wire rods (15), and the fastening ring (3) is provided with wire grooves at corresponding positions relative to each wire rod (15), and the wire rods (15) are slidably connected to the wire grooves.

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