Self-tapping type fastening reinforcing thread sleeve

Abstract

The utility model relates to the technical field of thread sleeves, in particular to a self-tapping fastening reinforced thread sleeve which comprises a blocking piece and a glue injection hole, the glue injection hole is formed in the inner side of the blocking piece, a thread sleeve assembly is fixedly connected to the inner side of the blocking piece, a limiting assembly is installed on the inner side of the thread sleeve assembly, and a locking device is rotationally connected to the inner side of the thread sleeve assembly. The limiting assembly comprises a clamping head, one end of the clamping head is fixedly connected with a sliding rod, one end of the sliding rod is fixedly connected with a piston, the outer side of the sliding rod is slidably connected with a sliding pipe, the inner side of the sliding pipe is provided with a sliding groove, and one end of the sliding pipe is fixedly connected with an air pipe. According to the device, additional physical locking can be formed between the device and base metal, the situation that the device is driven to be screwed out of the base metal when a bolt is screwed out of the device is prevented, and potential safety risks caused by unstable connection are avoided.

Description

Technical Field

[0001] This utility model relates to the field of threaded sleeve technology, specifically a self-tapping fastening reinforced threaded sleeve. Background Technology

[0002] Self-tapping reinforcing thread inserts are fasteners with a special thread design. Their inner and outer surfaces are evenly distributed with threads. During installation, they can be screwed into the base material using manual tools or electric / pneumatic tools to form a tight and secure threaded connection. Since self-tapping reinforcing thread inserts do not require pre-drilling or tapping, they are widely used in various applications.

[0003] The diameter, length, and other dimensions of the bolts installed in the self-tapping reinforced threaded inserts need to match the specifications of the self-tapping threaded inserts to ensure that the bolts and inserts fit tightly without any loosening and to ensure that the required tightening force is achieved.

[0004] In order to achieve the required tightening force, friction inevitably occurs between the threads of the bolt installed in the self-tapping fastening reinforced thread insert. When friction occurs between the bolt and the thread insert, the thread insert will undergo slight displacement inside the base material, and damage the threads between the thread insert and the base material. The damage to the threads will cause the thread insert to be pulled out of the base material a certain distance when the bolt is unscrewed from the thread insert, thereby affecting the connection strength of the connector. Therefore, a self-tapping fastening reinforced thread insert is proposed to address the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a self-tapping fastening reinforced threaded insert to solve the problem that when friction occurs between the bolt and the threaded insert, the threaded insert will undergo slight displacement inside the base material, and damage the thread between the threaded insert and the base material. The damage to the thread will cause the threaded insert to be rotated out of the base material a certain distance when the bolt is unscrewed from the threaded insert.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A self-tapping fastening reinforced threaded sleeve includes a baffle and an injection hole. The baffle has an injection hole on its inner side. A threaded sleeve assembly is fixedly connected to the inner side of the baffle. A limit component is installed on the inner side of the threaded sleeve assembly. A locking device is rotatably connected to the inner side of the threaded sleeve assembly. The threaded sleeve assembly includes a grooved threaded sleeve with an installation groove and a rotation groove on its inner side. The limit component includes a chuck. A slide rod is fixedly connected to one end of the chuck. A piston is fixedly connected to one end of the slide rod. A slide tube is slidably connected to the outer side of the slide rod. A slide groove is formed on the inner side of the slide tube. An air tube is fixedly connected to one end of the slide tube. An air groove is formed on the inner side of the air tube. An air bladder block is fixedly connected to one end of the air tube. The locking device includes a connecting ring. A limit ring is fixedly connected to the upper end of the connecting ring. A wedge is fixedly connected to the lower end of the chuck. A stop block is fixedly connected to one side of the wedge. An anti-slip strip is fixedly connected to one side of the wedge.

[0008] As a further optimization of this utility model, the upper end face of the threaded sleeve assembly and the upper end face of the baffle are on the same horizontal plane, a plurality of limiting components are provided, the limiting components are evenly and equidistantly distributed on the inner side of the threaded sleeve assembly, and the central axis of the locking device and the central axis of the threaded sleeve assembly are on the same straight line.

[0009] As a further optimization of this utility model, the following features are provided: a plurality of mounting slots are provided, each mounting slot corresponds one-to-one with a limiting component, the vertical cross-sectional shape of the rotating slot is "T" shaped, and the inner side of the rotating slot is fitted to the outer side of the locking device.

[0010] As a further optimization of this utility model, the following features are provided: one end of the clamp head is provided with an inclined surface, the included angle between the slide rod and the clamp head is 90°, the slide rod and the piston are on the same axis, and the outer side of the slide rod is in contact with the inner side of the slide groove.

[0011] As a further optimization of this utility model, the following features are provided: a threaded sleeve assembly is fixedly connected to the outside of the air tube; the outside of the air tube is arc-shaped; the air groove is cylindrical; a piston is slidably connected to the inside of the air groove; and one side of the airbag block is arc-shaped.

[0012] As a further optimization of this utility model, the projection of the connecting ring in the vertical direction is annular, the included angle between the limiting ring and the threaded sleeve assembly is 90°, the included angle between the limiting ring and the connecting ring is 90°, and the connecting ring and the limiting ring are on the same axis.

[0013] As a further optimization of this utility model, the following features are provided: a plurality of inclined blocks are provided, which are arranged in a circular array at the lower end of the connecting ring; a plurality of stop blocks are provided, which correspond one-to-one with the inclined blocks; and a plurality of anti-slip strips are provided, which are evenly and equidistantly distributed on one side of the inclined blocks.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this utility model, by setting a limiting component and a locking device, an additional physical lock can be formed between the device and the base material, preventing the device from being pulled out of the base material when the bolt is screwed out of the device, avoiding potential safety risks caused by unstable connection, and effectively dispersing the pressure and friction generated when the bolt is screwed into the device, reducing the direct impact on the base material. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the threaded sleeve assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the limiting component structure of this utility model;

[0019] Figure 4 This is an exploded view of the limiting component of this utility model;

[0020] Figure 5 This is a schematic cross-sectional view of the limiting component of this utility model;

[0021] Figure 6 This is a cross-sectional structural diagram of the locking device of this utility model.

[0022] In the diagram: 1. Baffle; 2. Injection hole; 3. Threaded sleeve assembly; 31. Grooved threaded sleeve; 32. Mounting groove; 33. Rotating groove; 4. Limiting assembly; 41. Clipper; 42. Slide rod; 43. Piston; 44. Slide tube; 45. Slide groove; 46. Air tube; 47. Air groove; 48. Airbag block; 5. Locking device; 51. Connecting ring; 52. Limiting ring; 53. Inclined block; 54. Stop block; 55. Anti-slip strip. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0025] Please see Figure 1-6 This utility model provides a technical solution:

[0026] A self-tapping fastening reinforced threaded sleeve includes a baffle 1 and an injection hole 2. The injection hole 2 is provided on the inner side of the baffle 1. A threaded sleeve assembly 3 is fixedly connected to the inner side of the baffle 1. A limit component 4 is installed on the inner side of the threaded sleeve assembly 3. A locking device 5 is rotatably connected to the inner side of the threaded sleeve assembly 3. The threaded sleeve assembly 3 includes a grooved threaded sleeve 31. An installation groove 32 is provided on the inner side of the grooved threaded sleeve 31. A rotation groove 33 is provided on the inner side of the grooved threaded sleeve 31. The limit component 4 includes a locking head 41. A sliding rod 42 is fixedly connected to one end of the locking head 41. A piston 43 is fixedly connected to one end of the slide rod 42. A slide tube 44 is slidably connected to the outside of the slide rod 42. A slide groove 45 is opened on the inside of the slide tube 44. An air tube 46 is fixedly connected to one end of the slide tube 44. An air groove 47 is opened on the inside of the air tube 46. An air bag block 48 is fixedly connected to one end of the air tube 46. The locking device 5 includes a connecting ring 51. A limit ring 52 is fixedly connected to the upper end of the connecting ring 51. An inclined block 53 is fixedly connected to the lower end of the locking head 41. A stop block 54 is fixedly connected to one side of the inclined block 53. An anti-slip strip 55 is fixedly connected to one side of the inclined block 53.

[0027] As a further implementation of this scheme, several inclined blocks 53 are provided, and the inclined blocks 53 are distributed in a circular array at the lower end of the connecting ring 51. Several stop blocks 54 are provided, and the stop blocks 54 correspond one-to-one with the inclined blocks 53. Several anti-slip strips 55 are provided, and the anti-slip strips 55 are evenly and equidistantly distributed on one side of the inclined blocks 53. This arrangement is conducive to strengthening the fastening ability of the device and improving the stability of the device.

[0028] As a further implementation of this solution, several mounting slots 32 are provided, and each mounting slot 32 corresponds to a limiting component 4. The vertical cross-section of the rotating slot 33 is "T" shaped, and the inner side of the rotating slot 33 fits against the outer side of the locking device 5. This design is more reasonable and can make the fit between components tighter.

[0029] As a further implementation of this solution, one end of the chuck 41 is provided with an inclined surface, the included angle between the slide rod 42 and the chuck 41 is 90°, the slide rod 42 and the piston 43 are on the same axis, and the outer side of the slide rod 42 fits against the inner side of the slide groove 45. This design strengthens the wedge fit between the components and improves the working efficiency of the device.

[0030] As a further implementation of this scheme, a threaded sleeve assembly 3 is fixedly connected to the outside of the air tube 46. The outside of the air tube 46 is arc-shaped. The air groove 47 is cylindrical. A piston 43 is slidably connected to the inside of the air groove 47. One side of the air bag block 48 is arc-shaped. This design is conducive to the cooperation between components and improves the operating accuracy of the device.

[0031] As a further implementation of this solution, the upper end face of the threaded sleeve assembly 3 and the upper end face of the baffle 1 are on the same horizontal plane. Several limiting components 4 are provided, and the limiting components 4 are evenly and equidistantly distributed inside the threaded sleeve assembly 3. The central axis of the locking device 5 and the central axis of the threaded sleeve assembly 3 are on the same straight line. This design is more reasonable and can avoid obstruction between components.

[0032] As a further implementation of this scheme, the projection of the connecting ring 51 in the vertical direction is annular, the included angle between the limiting ring 52 and the threaded sleeve assembly 3 is 90°, the included angle between the limiting ring 52 and the connecting ring 51 is 90°, and the connecting ring 51 and the limiting ring 52 are on the same axis. This design can make the force generated between the components evenly distributed and improve the structural strength of the device.

[0033] Workflow: When using the device, after inspecting and ensuring the installation environment is clean and tidy, rotate the device into the base material, ensuring the outer side of the threaded sleeve assembly 3 is tightly against the base material and the baffle 1 is in contact with the base material. Then, screw the bolt into the threaded sleeve assembly 3. When the bolt is screwed into the threaded sleeve assembly 3, it will compress the airbag block 48, causing the air inside the airbag block 48 to be forced into the air groove 47. At this time, the piston 43, under the pressure generated by the air compression, will slide inside the air groove 47. When the piston 43 moves, it will drive the fixedly connected slide rod 42 to move. When the slide rod 42 moves, it will drive the fixedly connected clamp 41 to move, causing the clamp 41 to... The end of the clamp 41 contacts the base material to strengthen the connection between the device and the base material. Since the end face of the clamp 41 that contacts the base material is inclined, if the bolt is rotated to make the device rotate, the base material will exert a force on the clamp 41, and the clamp 41 will play a shock absorption effect, which can effectively prevent damage to the base material. When the bolt is inserted into the device, the bottom end of the bolt will contact the stop block 54, and at the same time the side of the bolt will press the inclined block 53, causing the inclined block 53 to open. At this time, the anti-slip strip 55 will contact the base material, further strengthening the connection between the device and the base material. After the connection is completed, the gap between the device and the base material can be completely sealed by injecting glue into the glue injection hole 2.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-tapping fastening reinforced threaded sleeve, comprising a baffle (1) and an injection hole (2), characterized in that: The baffle (1) has an injection hole (2) on its inner side. A threaded sleeve assembly (3) is fixedly connected to the inner side of the baffle (1). A limit assembly (4) is installed on the inner side of the threaded sleeve assembly (3). A locking device (5) is rotatably connected to the inner side of the threaded sleeve assembly (3). The threaded sleeve assembly (3) includes a grooved threaded sleeve (31). An installation groove (32) is opened on the inner side of the grooved threaded sleeve (31). A rotation groove (33) is opened on the inner side of the grooved threaded sleeve (31). The limit assembly (4) includes a chuck (41). A slide rod (42) is fixedly connected to one end of the chuck (41). A piston (4) is fixedly connected to one end of the slide rod (42). 3) A sliding tube (44) is slidably connected to the outside of the sliding rod (42). A sliding groove (45) is opened on the inside of the sliding tube (44). An air tube (46) is fixedly connected to one end of the sliding tube (44). An air groove (47) is opened on the inside of the air tube (46). An airbag block (48) is fixedly connected to one end of the air tube (46). The locking device (5) includes a connecting ring (51). A limit ring (52) is fixedly connected to the upper end of the connecting ring (51). An inclined block (53) is fixedly connected to the lower end of the clamp (41). A stop block (54) is fixedly connected to one side of the inclined block (53). An anti-slip strip (55) is fixedly connected to one side of the inclined block (53).

2. The self-tapping reinforcing threaded sleeve according to claim 1, characterized in that: The upper surface of the threaded sleeve assembly (3) is on the same horizontal plane as the upper surface of the baffle (1). Several limiting components (4) are provided. The limiting components (4) are evenly and equidistantly distributed inside the threaded sleeve assembly (3). The central axis of the locking device (5) is on the same straight line as the central axis of the threaded sleeve assembly (3).

3. The self-tapping reinforcing threaded sleeve according to claim 1, characterized in that: The mounting groove (32) is provided in several ways. The mounting groove (32) corresponds one-to-one with the limiting component (4). The vertical cross-section of the rotating groove (33) is "T" shaped. The inner side of the rotating groove (33) fits against the outer side of the locking device (5).

4. The self-tapping reinforcing threaded sleeve according to claim 1, characterized in that: The clamp (41) has an inclined surface at one end, the sliding rod (42) and the clamp (41) form an angle of 90°, the sliding rod (42) and the piston (43) are on the same axis, and the outer side of the sliding rod (42) is in contact with the inner side of the sliding groove (45).

5. The self-tapping reinforcing threaded sleeve according to claim 1, characterized in that: The air tube (46) is fixedly connected to a threaded sleeve assembly (3) on the outside. The air tube (46) is arc-shaped on the outside. The air groove (47) is cylindrical in shape. A piston (43) is slidably connected to the inside of the air groove (47). One side of the airbag block (48) is arc-shaped.

6. The self-tapping reinforcing threaded sleeve according to claim 1, characterized in that: The projection of the connecting ring (51) in the vertical direction is an annular shape. The included angle between the limiting ring (52) and the threaded sleeve assembly (3) is 90°. The included angle between the limiting ring (52) and the connecting ring (51) is 90°. The connecting ring (51) and the limiting ring (52) are on the same axis.

7. The self-tapping reinforcing threaded sleeve according to claim 1, characterized in that: Several inclined blocks (53) are provided, and the inclined blocks (53) are arranged in a ring array at the lower end of the connecting ring (51). Several stop blocks (54) are provided, and the stop blocks (54) correspond one-to-one with the inclined blocks (53). Several anti-slip strips (55) are provided, and the anti-slip strips (55) are evenly and equidistantly distributed on one side of the inclined blocks (53).

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