Wear-resistant protective front yoke sleeve

Abstract

The utility model discloses a wear-resistant protective front yoke sleeve, which comprises a first sleeve body and a second sleeve body, a bottom plate is arranged at the bottom of the second sleeve body, the second sleeve body and the bottom plate are integrally formed, both the bottom plate and the second sleeve body are of hollow structures, and the inner diameter of the bottom plate is equal to that of the second sleeve body. The first sleeve body is connected with the second sleeve body through the fastening mechanism, the first sleeve body is of a hollow structure, the first sleeve body and the second sleeve body can be fixedly connected through the threaded fit of the connecting column and the connecting groove, and after the first sleeve body and the second sleeve body are completely closed, the first sleeve body and the second sleeve body can be fixed. The telescopic rod at the bottom of the first sleeve body is just aligned with the limiting hole in the upper end of the second sleeve body, the telescopic rod can be automatically inserted into the limiting hole under the action of the spring, at the moment, the first sleeve body and the second sleeve body cannot rotate relatively, and therefore it is guaranteed that thread fit between the first sleeve body and the second sleeve body is not loosened; and therefore, the stability of fixed connection between the first sleeve body and the second sleeve body is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of front yoke sleeves, and particularly relates to a wear-resistant and protective front yoke sleeve. Background Technique

[0002] The VVT control valve usually includes a front yoke sleeve, and the front yoke sleeve is arranged at the end of the VVT control valve. However, during the research process of this application, the inventor found that the existing front yoke sleeve has a relatively simple structure and is not firmly connected, and the front yoke sleeve will fall off after the VVT control valve is used for a long time.

[0003] According to the Chinese patent document with the publication number CN208749424U, a VVT control valve front yoke sleeve that is convenient for installation is disclosed. By dividing the front yoke sleeve into a first sleeve body and a second sleeve body, it is convenient for staff to disassemble and install. At the same time, through the fastener, the first sleeve body and the second sleeve body can be tightly connected to ensure the normal use of the front yoke sleeve, and it is convenient to use.

[0004] However, the above device uses fasteners with two semi-circular ring structures to lock and fix the connection position between the first sleeve body and the second sleeve body. This connection method cannot ensure that there is no relative rotation between the first sleeve body and the second sleeve body, cannot ensure the connection stability, and is relatively cumbersome to operate. Therefore, a wear-resistant and protective front yoke sleeve is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a wear-resistant and protective front yoke sleeve to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a wear-resistant and protective front yoke sleeve, including a first sleeve body and a second sleeve body. The bottom of the second sleeve body is provided with a bottom plate and is integrally formed with the bottom plate. Both the bottom plate and the second sleeve body are hollow structures. The inner diameter of the bottom plate is equal to the inner diameter of the second sleeve body. The first sleeve body is connected to the second sleeve body through a fastening mechanism. The first sleeve body is a hollow structure, and the inner diameter of the first sleeve body is equal to the inner diameter of the second sleeve body. The fastening mechanism is composed of a connecting column and a telescopic rod. The connecting column is fixedly connected to the bottom of the first sleeve body. A connecting groove adapted to the connecting column is opened at the upper end of the second sleeve body. The connecting groove and the connecting column are connected by thread fit. A telescopic rod is further provided at the lower end of the first sleeve body. A limiting hole that slidably fits with the telescopic rod is opened at the upper end of the second sleeve body.

[0007] As a further preferred of this technical solution, threaded holes are opened at the bottom of the bottom plate.

[0008] As a further preferred of this technical solution, a spring acting on the telescopic rod is arranged inside the first sleeve body.

[0009] As a further preference of this technical solution, a sealing groove is provided above the outer wall of the first sleeve body, and the sealing groove is of an annular structure.

[0010] As a further preference of this technical solution, the limiting hole extends to the bottom of the bottom plate.

[0011] As a further preference of this technical solution, a sealing plate is fixedly connected to the bottom of the first sleeve body, and a fitting groove adapted to the sealing plate is provided at the upper end of the second sleeve body.

[0012] As a further preference of this technical solution, a plurality of reinforcing plates are fixedly connected between the upper end of the bottom plate and the outer wall of the second sleeve body. The reinforcing plates are of a triangular structure, and the plurality of reinforcing plates are arranged in an annular array.

[0013] The utility model provides a wear-resistant protective front yoke sleeve, which has the following beneficial effects:

[0014] In the utility model, the first sleeve body and the second sleeve body can be fixedly connected through the threaded fit between the connecting column and the connecting groove. After the first sleeve body and the second sleeve body are completely closed, the telescopic rod at the bottom of the first sleeve body will just be aligned with the limiting hole at the upper end of the second sleeve body. Under the action of the spring, the telescopic rod will automatically insert into the limiting hole. At this time, the first sleeve body and the second sleeve body cannot rotate relative to each other, so as to ensure that the threaded fit between the two will not become loose, and further ensure the stability of the fixed connection between the first sleeve body and the second sleeve body. This structural design can make the connection between the first sleeve body and the second sleeve body more stable and firm, and the disassembly and assembly between the first sleeve body and the second sleeve body are more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a split schematic diagram of the overall structure of the utility model;

[0017] Figure 3 It is a split schematic diagram of the overall structure of the utility model from another perspective;

[0018] Figure 4 It is a schematic diagram of the structure of the second sleeve body and the bottom plate in the utility model;

[0019] In the figure: 1, the first sleeve body; 2, the second sleeve body; 3, the bottom plate; 4, the sealing groove; 5, the reinforcing plate; 6, the connecting column; 7, the sealing plate; 8, the telescopic rod; 9, the limiting hole; 10, the threaded hole; 11, the fitting groove; 12, the connecting groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0021] The present utility model provides a technical solution: As Figures 1 to 4 shown, in this embodiment, a wear-resistant protective front yoke sleeve includes a first sleeve body 1 and a second sleeve body 2. A bottom plate 3 is provided at the bottom of the second sleeve body 2 and is integrally formed with the bottom plate 3. A threaded hole 10 is opened at the bottom of the bottom plate 3. The bottom plate 3 can be fixed through the provided threaded hole 10. The bottom plate 3 can support the second sleeve body 2. Both the bottom plate 3 and the second sleeve body 2 are hollow structures. The inner diameter of the bottom plate 3 is equal to the inner diameter of the second sleeve body 2. The first sleeve body 1 is connected to the second sleeve body 2 through a fastening mechanism. The first sleeve body 1 is a hollow structure. The inner diameter of the first sleeve body 1 is equal to the inner diameter of the second sleeve body 2. The fastening mechanism is composed of a connecting column 6 and a telescopic rod 8. The connecting column 6 is fixedly connected to the bottom of the first sleeve body 1. A connecting groove 12 adapted to the connecting column 6 is opened at the upper end of the second sleeve body 2. The connecting groove 12 and the connecting column 6 are connected through thread matching. A telescopic rod 8 is further provided at the lower end of the first sleeve body 1. A spring acting on the telescopic rod 8 is arranged inside the first sleeve body 1. A limiting hole 9 slidably fitted with the telescopic rod 8 is also opened at the upper end of the second sleeve body 2.

[0022] During use, the first sleeve body 1 and the second sleeve body 2 are fixedly connected through the thread matching of the connecting column 6 and the connecting groove 12. When the first sleeve body 1 and the second sleeve body 2 are completely closed, the telescopic rod 8 at the bottom of the first sleeve body 1 will just align with the limiting hole 9 at the upper end of the second sleeve body 2. The telescopic rod 8 will automatically insert into the limiting hole 9. At this time, the first sleeve body 1 and the second sleeve body 2 cannot rotate relative to each other, thereby ensuring that the thread matching between the two will not become loose, and further ensuring the stability of the fixed connection between the first sleeve body 1 and the second sleeve body 2. This device not only makes the disassembly and assembly between the first sleeve body 1 and the second sleeve body 2 simple and convenient, but also has better firmness after the two are connected.

[0023] Among them, a sealing groove 4 is opened above the outer wall of the first sleeve body 1. The sealing groove 4 is of an annular structure. The provided sealing groove 4 can be used to place a sealing ring.

[0024] Among them, the limiting hole 9 extends to the bottom of the bottom plate 3.

[0025] With such a setting, when disassembling the connection between the first sleeve body 1 and the second sleeve body 2, an external insertion rod A can be inserted into the limiting hole 9 at the bottom of the bottom plate 3, so as to push the telescopic rod 8 out of the limiting hole 9. At this time, the first sleeve body 1 can be rotated to separate the first sleeve body 1 and the second sleeve body 2.

[0026] Among them, a sealing plate 7 is fixedly connected to the bottom of the first sleeve body 1. A fitting groove 11 adapted to the sealing plate 7 is opened at the upper end of the second sleeve body 2.

[0027] Through the provided sealing plate 7 and fitting groove 11, the connection between the first sleeve body 1 and the second sleeve body 2 can be made tighter.

[0028] Among them, a plurality of reinforcing plates 5 are fixedly connected between the upper end of the bottom plate 3 and the outer wall of the second sleeve body 2. The reinforcing plates 5 are triangular structures, and the plurality of reinforcing plates 5 are arranged in an annular array.

[0029] By providing the reinforcing plates 5, the firmness of the connection between the second sleeve body 2 and the bottom plate 3 can be improved.

[0030] The utility model provides a wear-resistant protective front yoke sleeve, and the specific working principle is as follows:

[0031] Both the first sleeve body 1 and the second sleeve body 2 are made of wear-resistant metal, which can ensure that the service life of the front yoke sleeve is long enough. When the first sleeve body 1 and the second sleeve body 2 are connected, the first sleeve body 1 and the second sleeve body 2 are fixedly connected through the threaded fit of the connecting column 6 and the connecting groove 12. When the first sleeve body 1 and the second sleeve body 2 are completely closed, the telescopic rod 8 at the bottom of the first sleeve body 1 will just align with the limiting hole 9 at the upper end of the second sleeve body 2. Under the action of the spring, the telescopic rod 8 will automatically insert into the limiting hole 9. At this time, the first sleeve body 1 and the second sleeve body 2 cannot rotate relative to each other, so as to ensure that the threaded fit between the two will not become loose, and further ensure the stability of the fixed connection between the first sleeve body 1 and the second sleeve body 2. When disassembling, only need to insert the external insertion rod A into the limiting hole 9 at the bottom of the bottom plate 3, so as to push the telescopic rod 8 out of the limiting hole 9. At this time, the first sleeve body 1 can be rotated to separate the first sleeve body 1 and the second sleeve body 2. This device not only makes the disassembly and assembly of the first sleeve body 1 and the second sleeve body 2 simple and convenient, but also the firmness after their connection is better.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant protective front yoke sleeve, comprising a first sleeve body (1) and a second sleeve body (2), characterized in that: The bottom of the second sleeve (2) is provided with a bottom plate (3) and is integrally formed with the bottom plate (3); the bottom plate (3) and the second sleeve (2) are both hollow structures; the inner diameter of the bottom plate (3) is equal to the inner diameter of the second sleeve (2); the first sleeve (1) is connected to the second sleeve (2) through a fastening mechanism; the first sleeve (1) is a hollow structure; the inner diameter of the first sleeve (1) is equal to the inner diameter of the second sleeve (2); the fastening mechanism is composed of a connecting column (6) and a telescopic rod (8); the connecting column (6) is fixedly connected to the bottom of the first sleeve (1); the upper end of the second sleeve (2) is provided with a connecting groove (12) adapted to and connected with the connecting column (6); the connecting groove (12) and the connecting column (6) are connected by threaded engagement; the lower end of the first sleeve (1) is also provided with a telescopic rod (8); the upper end of the second sleeve (2) is also provided with a limiting hole (9) slidably engaged with the telescopic rod (8).

2. A wear-resistant protective front yoke sleeve according to claim 1, characterized in that: A threaded hole (10) is provided at the bottom of the base plate (3).

3. The wear-resistant protective front yoke sleeve according to claim 1, characterized in that: A spring acting on the telescopic rod (8) is arranged inside the first sleeve (1).

4. The wear-resistant protective front yoke sleeve according to claim 1, characterized in that: A sealing groove (4) is provided on the outer wall of the first sleeve (1), and the sealing groove (4) is an annular structure.

5. The wear-resistant protective front yoke sleeve according to claim 1, characterized in that: The limiting hole (9) extends to the bottom of the base plate (3).

6. The wear-resistant protective front yoke sleeve according to claim 1, characterized in that: The bottom of the first sleeve (1) is fixedly connected to a sealing plate (7), and the upper end of the second sleeve (2) is provided with a fitting groove (11) adapted to the sealing plate (7).

7. The wear-resistant protective front yoke sleeve according to claim 1, characterized in that: A plurality of reinforcing plates (5) are fixedly connected between the upper end of the bottom plate (3) and the outer wall of the second casing (2); the reinforcing plates (5) are triangular in structure, and the plurality of reinforcing plates (5) are arranged in a ring-shaped array.

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