Sealed oil drain bolt

Abstract

The utility model belongs to bolt technical field, concretely relates to sealed oil drain bolt, including bolt head, the lower fixedly connected with end cover of bolt head, the lower fixedly connected with bolt column of end cover, the bolt head is equipped with internal hexagonal groove, the bolt head is equipped with external hexagonal groove, the lower of end cover is provided with sealing mechanism, the lower of bolt column is provided with limit stop mechanism, through the inside of limit stop groove that limit block slidingly inserted, and paste film limit stop block, increase limit stop block limit stability, avoid to separate from the inside of limit stop groove to through the connection of limit block and limit stop groove and carry out the limit of sealing pad, avoid to separate from the lower of end cover, increase sealing effect, through the setting of magnetic ring, the setting of inclined surface, convenient for splicing bolt column, and magnetic ring attracts the inside of external thread groove, thereby carries out the limit of bolt column, convenient bolt column rotation connection, avoid the inclination and separate from when bolt column installation.

Description

Technical Field

[0001] This utility model relates to the field of bolt technology, specifically to a sealing-type oil drain bolt. Background Technology

[0002] Bolt: A mechanical part, a cylindrical threaded fastener fitted with a nut. It consists of a head and a shank (a cylinder with external threads), and is used to fasten two parts with through holes. This type of connection is called a bolted connection. Since the two parts can be separated by unscrewing the nut, a bolted connection is a detachable connection.

[0003] According to patent authorization announcement number CN220286164U, a sealing-type drain bolt includes a bolt head and a bolt post integrally mounted on the bolt head. A cap is integrally provided at the connection between the bolt head and the bolt post. A gasket mounting groove is provided inside the cap. The bolt post consists of a gasket fixing section, a threaded section, and a tapered head. A gasket fixing step is formed between the gasket fixing section and the threaded section. The gasket is installed in the gasket mounting groove inside the cap and is fixed by the gasket fixing step formed between the gasket fixing section and the threaded section on the bolt post. Threads are evenly distributed on the threaded section of the bolt post. This sealing-type drain bolt has a simple structure and a reasonable design. Through the structural design of the drain bolt and gasket, the sealing and tightness with the housing can be better guaranteed, reducing the problem of oil leakage from the oil pan caused by gasket deformation due to tightening the drain bolt.

[0004] However, the existing oil drain bolts have poor limiting stability when the sealing gasket is connected to the limiting sleeve, and the sealing gasket is easy to fall off the bolt surface, thus affecting the use. At the same time, the limiting stability is poor when the bolt is slidably inserted into the inside of the threaded groove, and it is easy to tilt when rotating, thus affecting the installation of the bolt. Utility Model Content

[0005] The purpose of this invention is to provide a sealing-type oil drain bolt, which solves the problems of limiting the sealing gasket and the bolt.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sealing oil drain bolt, including a bolt head, an end cap fixedly connected to the lower end of the bolt head, a bolt post fixedly connected to the lower end of the end cap, an internal hexagonal groove on the bolt head, an external hexagonal groove on the bolt head, a sealing mechanism at the lower end of the end cap, and a limit mechanism at the lower end of the bolt post.

[0007] Preferably, the sealing mechanism includes a sealing gasket, the lower end of the end cap is tightly sealed with the sealing gasket, the sealing gasket is made of rubber, and the sealing gasket is slidably sleeved on the upper end of the bolt post.

[0008] Preferably, a plurality of limiting blocks are fixedly connected to the upper end of the sealing gasket, and an adhesive film is fixedly connected to the upper end of the limiting blocks.

[0009] Preferably, the bolt head and the end cap are respectively provided with multiple limiting grooves, the limiting block is slidably inserted into the inside of the limiting groove, and the limiting block squeezes and adheres the adhesive film tightly to the inside of the limiting groove.

[0010] Preferably, the limiting mechanism includes an annular groove, and the lower end of the bolt column has an annular groove, with a magnetic ring fixedly connected inside the annular groove.

[0011] Preferably, the outer diameter of the magnetic ring is the same as the outer diameter of the bolt post, and the lower end of the bolt post is provided with an inclined surface.

[0012] Preferably, the bolt post is provided with a thread, the thread is provided at the upper end of the magnetic ring, and the inclined surface is provided at the lower end of the magnetic ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses a limiting block that slides into the inside of the limiting groove, and an adhesive film is used to limit the limiting block, increasing the stability of the limiting block and preventing it from falling out of the inside of the limiting groove. Thus, the connection between the limiting block and the limiting groove limits the sealing gasket, preventing it from falling out of the lower end of the end cap and increasing the sealing effect.

[0015] 2. This utility model, by setting a magnetic ring and an inclined surface, facilitates the insertion of bolt posts. Moreover, the magnetic ring attracts the interior of the external thread groove, thereby limiting the bolt posts and facilitating their rotational connection, thus preventing the bolt posts from tilting or coming off during installation. Attached Figure Description

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

[0017] Figure 2 This utility model has a partial three-dimensional structure. Figure 1 ;

[0018] Figure 3 This utility model has a partial three-dimensional structure. Figure 2 ;

[0019] Figure 4 This utility model has a partial three-dimensional structure. Figure 3 ;

[0020] Figure 5 This is a partial sectional view of the overall structure of this utility model.

[0021] In the diagram: 1 Bolt head, 2 End cap, 3 Bolt post, 4 Internal hexagonal groove, 5 External hexagonal groove, 6 Sealing mechanism, 7 Limiting mechanism, 61 Sealing gasket, 62 Limiting block, 63 Adhesive film, 64 Limiting groove, 71 Annular groove, 72 Magnetic ring, 73 Inclined surface, 74 Thread. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1 , Figure 4 , Figure 5 A sealed drain bolt includes a bolt head 1, an end cap 2 fixedly connected to the lower end of the bolt head 1, a bolt post 3 fixedly connected to the lower end of the end cap 2, an internal hexagonal groove 4 and an external hexagonal groove 5. The internal hexagonal groove 4 and the external hexagonal groove 5 facilitate the rotation of the bolt head 1 by a wrench. A sealing mechanism 6 is provided at the lower end of the end cap 2, and a limit mechanism 7 is provided at the lower end of the bolt post 3.

[0024] Please see Figure 1 , Figure 3 , Figure 5 The sealing mechanism 6 includes a sealing gasket 61. The lower end of the end cap 2 is tightly sealed with the sealing gasket 61. The upper end of the sealing gasket 61 is limited by the end cap 2, increasing the area of ​​the sealing gasket 61. The sealing gasket 61 is made of rubber. The sealing gasket 61 is slidably sleeved on the upper end of the bolt post 3. Multiple limiting blocks 62 are fixedly connected to the upper end of the sealing gasket 61. An adhesive film 63 is fixedly connected to the upper end of the limiting block 62. Multiple limiting grooves 64 are respectively opened on the bolt head 1 and the end cap 2. The limiting block 62 is slidably inserted into the inside of the limiting groove 64. The limiting block 62 squeezes the adhesive film 63 to adhere tightly to the inside of the limiting groove 64.

[0025] Please see Figure 1 , Figure 2 , Figure 4 , Figure 5 The limiting mechanism 7 includes an annular groove 71. The lower end of the bolt post 3 is provided with an annular groove 71. A magnetic ring 72 is fixedly connected inside the annular groove 71. The outer diameter of the magnetic ring 72 is the same as the outer diameter of the bolt post 3. The lower end of the bolt post 3 is provided with a slope 73. The bolt post 3 is provided with a thread 74. The thread 74 is existing technology and will not be described in detail in this technical solution. The thread 74 is provided at the upper end of the magnetic ring 72, and the slope 73 is provided at the lower end of the magnetic ring 72.

[0026] The specific implementation process of this utility model is as follows: In use, the sealing mechanism 6 is slidably sleeved on the bolt post 3, and at the same time, the limiting block 62 is slidably engaged in the inside of the limiting groove 64, and the adhesive film 63 is adhered to the inside of the limiting groove 64. The wrench rotates the bolt head 1 through the inner hexagonal groove 4 and the outer hexagonal groove 5. By setting the magnetic ring 72 and the inclined surface 73, it is convenient to insert the bolt post 3. Moreover, the magnetic ring 72 attracts the inside of the external thread groove, thereby limiting the bolt post 3, making it convenient for the bolt post 3 to rotate and connect, and preventing the bolt post 3 from tilting or falling off during installation.

[0027] 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 sealing-type drain bolt, comprising a bolt head (1), characterized in that: The lower end of the bolt head (1) is fixedly connected to an end cap (2), the lower end of the end cap (2) is fixedly connected to a bolt post (3), the bolt head (1) has an internal hexagonal groove (4), the bolt head (1) has an external hexagonal groove (5), the lower end of the end cap (2) is provided with a sealing mechanism (6), and the lower end of the bolt post (3) is provided with a limit mechanism (7).

2. The sealing-type drain bolt according to claim 1, characterized in that: The sealing mechanism (6) includes a sealing gasket (61). The lower end of the end cap (2) is tightly sealed with the sealing gasket (61). The material of the sealing gasket (61) is rubber. The sealing gasket (61) is slidably sleeved on the upper end of the bolt post (3).

3. The sealing-type drain bolt according to claim 2, characterized in that: The upper end of the sealing gasket (61) is fixedly connected to a plurality of limiting blocks (62), and the upper end of the limiting blocks (62) is fixedly connected to an adhesive film (63).

4. The sealing-type drain bolt according to claim 3, characterized in that: The bolt head (1) and the end cap (2) are respectively provided with multiple limiting grooves (64). The limiting block (62) is slidably inserted into the inside of the limiting groove (64). The limiting block (62) squeezes the adhesive film (63) to adhere tightly to the inside of the limiting groove (64).

5. The sealing-type drain bolt according to claim 1, characterized in that: The limiting mechanism (7) includes an annular groove (71), and the lower end of the bolt column (3) is provided with an annular groove (71), and a magnetic ring (72) is fixedly connected inside the annular groove (71).

6. The sealing-type drain bolt according to claim 5, characterized in that: The outer diameter of the magnetic ring (72) is the same as the outer diameter of the bolt post (3), and the lower end of the bolt post (3) is provided with an inclined surface (73).

7. The sealing-type drain bolt according to claim 6, characterized in that: The bolt post (3) is provided with a thread (74), the thread (74) is located at the upper end of the magnetic ring (72), and the inclined surface (73) is located at the lower end of the magnetic ring (72).

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