Automobile vacuum pump convenient to maintain

Abstract

The utility model relates to an automobile vacuum pump convenient to maintain, which belongs to the technical field of vacuum pumps and comprises a vacuum pump body and a shell, and a dismounting mechanism is arranged between the vacuum pump body and the shell and comprises a fixing plate fixedly mounted on the surface of the vacuum pump body. A spring telescopic rod and a sleeve are fixedly mounted on the surface of the fixing plate, a lantern ring is fixedly mounted at the top of the spring telescopic rod, an inserting cylinder is fixedly mounted at the bottom of the shell, a rectangular cavity is formed in the shell wall of the shell, a top spring is fixedly mounted in the rectangular cavity, and a connecting plate is fixedly mounted at one end of the top spring. According to the automobile vacuum pump convenient to maintain, the disassembly and assembly mechanism is arranged between the vacuum pump body and the shell, the vacuum pump and the shell are spliced by adopting a connection mode of a lantern ring and a clamping block, and the shell can be quickly disassembled from the vacuum pump when the automobile vacuum pump convenient to maintain is used; the use is more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pumps, in particular to an automobile vacuum pump which is easy to maintain. Background Art

[0002] A car vacuum pump is a device used to generate vacuum, usually installed on the engine, to provide vacuum power to the hydraulic brake system, exhaust system, air conditioning system, etc. It generates vacuum through the operation of the engine, thereby helping these systems to work normally.

[0003] Chinese patent CN 219622849 U discloses a vacuum pump that is easy to maintain, comprising a vacuum pump, a housing, two connecting blocks and two fixing blocks, wherein the housing is located on the left side of the vacuum pump, the two connecting blocks are located on the front and rear sides of the housing respectively, and the two fixing blocks are located on the front and rear sides of the left side of the vacuum pump respectively. By arranging the vacuum pump, the housing, the connecting blocks, the fixing blocks, the plug-in blocks, the positioning mechanism and the transmission mechanism for coordinated use, the invention solves the problem that when performing maintenance on the vacuum pump, the housing of the vacuum pump needs to be removed to perform maintenance and repair on its internal components. However, the housing is connected and fixed to the vacuum pump by multiple threaded components, and the long-term removal and installation process causes certain wear to the threaded connection. If the wear is severe, the housing connection will become unstable. In addition, the process of removing and installing the housing takes a certain amount of time for the user, making it inconvenient for the user to quickly perform maintenance and repair on the vacuum pump.

[0004] The above patent aims to improve the shortcomings of the prior art in which the vacuum pump housing is connected and fixed to the vacuum pump through multiple threaded components, and the long-term removal and installation process causes certain wear to the threaded connection port. When the wear is severe, it will lead to unstable housing connection, and the process of removing and installing the housing requires a certain amount of time for the user, which is not convenient for the user to quickly maintain and repair the vacuum pump. This embodiment provides another implementation plan for the problems raised in the above patent. Utility Model Content

[0005] In response to the deficiencies in the prior art, the utility model provides an automobile vacuum pump that is easy to maintain and has the advantage of being easy to disassemble and repair. It solves the problem in the prior art that the vacuum pump housing is connected and fixed to the vacuum pump through multiple threaded components, and the long-term disassembly and installation process causes certain wear on the threaded connection port. Severe wear will lead to unstable housing connection, and the process of disassembling and installing the housing requires a certain amount of time for the user, which is inconvenient for the user to quickly maintain and repair the vacuum pump.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: an automobile vacuum pump that is easy to maintain, comprising a vacuum pump body and a housing, wherein a disassembly mechanism is provided between the vacuum pump body and the housing;

[0007] The disassembly and assembly mechanism includes a fixed plate fixedly mounted on the surface of the vacuum pump body, a spring telescopic rod and a sleeve fixedly mounted on the surface of the fixed plate, a collar fixedly mounted on the top of the spring telescopic rod, a plug-in sleeve fixedly mounted on the bottom of the shell, a rectangular cavity is opened inside the shell wall, a top spring is fixedly mounted inside the rectangular cavity, a connecting plate is fixedly mounted on one end of the top spring, and a card block penetrating to the outer surface of the shell is fixedly mounted on the surface of the connecting plate.

[0008] Furthermore, the outer diameter of the shell is the same as the outer diameter of the sleeve, the collar is sleeved on the surface of the sleeve, and the inner surface of the collar is in sliding contact with the surface of the sleeve.

[0009] The beneficial effects of adopting the above further solution are: facilitating the movement of the collar on the surface of the sleeve and facilitating the transition of the collar from the sleeve to the housing.

[0010] Furthermore, the inner diameter of the sleeve is adapted to the outer diameter of the plug-in sleeve, and the inner depth of the sleeve is the same as the outer height of the plug-in sleeve.

[0011] The beneficial effect of adopting the above further solution is that it is easy to insert the plug-in sleeve into the sleeve.

[0012] Furthermore, the outer shape of the connecting plate is the same as the inner shape of the rectangular cavity, and the outer surface of the connecting plate is in sliding contact with the inner surface of the rectangular cavity.

[0013] The beneficial effect of adopting the above further solution is that it facilitates the movement of the connecting plate in the rectangular cavity.

[0014] Furthermore, a strip-shaped hole communicating with the interior of the rectangular cavity is opened on the outer surface of the shell, and the card block is located in the strip-shaped hole.

[0015] The beneficial effect of adopting the above further solution is that it facilitates the card block to penetrate the outer surface of the shell better.

[0016] Furthermore, the outer shape of the clamping block is a triangle, and the inclined surface of the clamping block faces one end of the plug-in cylinder.

[0017] The beneficial effect of adopting the above further solution is that the card block can be better compressed into the rectangular cavity when the ring moves.

[0018] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0019] The automobile vacuum pump which is easy to maintain is provided with a disassembly and assembly mechanism between the vacuum pump body and the housing, and adopts a connection method of a collar and a clamping block to splice the vacuum pump and the housing. When in use, the housing can be quickly disassembled from the vacuum pump. Compared with the connection method using a threaded component in the prior art, the use is more convenient and quicker, and solves the problem that in the prior art, the vacuum pump housing is connected and fixed to the vacuum pump by multiple threaded components, and the long-term disassembly and installation process causes certain wear to the threaded connection port. Severe wear can lead to unstable connection of the housing, and the process of disassembling and installing the housing requires a certain amount of time for the user, which is inconvenient for the user to quickly perform maintenance and repair on the vacuum pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the connection between the vacuum pump body and the shell of the utility model;

[0021] Figure 2 This is a schematic diagram of the vacuum pump body of the utility model;

[0022] Figure 3 This is a schematic diagram of the structural shell of the utility model;

[0023] Figure 4 This is a schematic cross-sectional view of the structural shell of the utility model.

[0024] In the figure: 1. Vacuum pump body; 2. Outer shell; 3. Fixed plate; 4. Spring telescopic rod; 5. Sleeve; 6. Ring; 7. Plug-in cylinder; 8. Rectangular cavity; 9. Top spring; 10. Connecting plate; 11. Block; 12. Strip hole. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figures 1 to 4In this embodiment, an automobile vacuum pump that is easy to maintain includes a vacuum pump body 1 and a shell 2. A disassembly and assembly mechanism is provided between the vacuum pump body 1 and the shell 2. The disassembly and assembly mechanism includes a fixing plate 3 fixedly mounted on the surface of the vacuum pump body 1. A spring telescopic rod 4 and a sleeve 5 are fixedly mounted on the surface of the fixing plate 3. A collar 6 is fixedly mounted on the top of the spring telescopic rod 4. The outer diameter of the shell 2 is the same as the outer diameter of the sleeve 5. The collar 6 is sleeved on the surface of the sleeve 5. The inner surface of the collar 6 is in sliding contact with the surface of the sleeve 5, which facilitates the movement of the collar 6 on the surface of the sleeve 5 and the transition of the collar 6 from the sleeve 5 to the shell 2. A plug-in sleeve 7 is fixedly mounted on the bottom of the shell 2. The inner diameter of the sleeve 5 matches the outer diameter of the plug-in sleeve 7. The inner depth of the sleeve 5 is the same as the outer height of the plug-in sleeve 7, which is convenient for The plug-in tube 7 is inserted into the sleeve 5, and a rectangular cavity 8 is provided inside the shell wall of the outer shell 2. A top spring 9 is fixedly installed inside the rectangular cavity 8, and a connecting plate 10 is fixedly installed at one end of the top spring 9. The external shape of the connecting plate 10 is the same as the internal shape of the rectangular cavity 8. The outer surface of the connecting plate 10 is in sliding contact with the inner surface of the rectangular cavity 8, which facilitates the movement of the connecting plate 10 in the rectangular cavity 8. A card block 11 is fixedly installed on the surface of the connecting plate 10, which penetrates the outer surface of the outer shell 2. A strip hole 12 connected to the interior of the rectangular cavity 8 is provided on the outer surface of the outer shell 2. The card block 11 is located in the strip hole 12, which facilitates the card block 11 to better penetrate the outer surface of the outer shell 2. The external shape of the card block 11 is triangular, and the inclined surface of the card block 11 faces one end of the plug-in tube 7, which facilitates the card block 11 to be better compressed into the rectangular cavity 8 when the ring 6 moves.

[0027] It should be noted that in this embodiment, there are multiple spring telescopic rods 4 and multiple clamping blocks 11 . The multiple spring telescopic rods 4 are evenly distributed on the surface of the fixing plate 3 , and the multiple clamping blocks 11 are evenly distributed on the surface of the housing 2 .

[0028] It should be noted that the spring telescopic rod 4 in this embodiment is composed of a spring, a telescopic rod and an outer tube. The spring is located inside the outer tube, and one end of the telescopic rod is inserted into the inner part of the outer tube and fixedly connected to the spring.

[0029] The working principle of the above embodiment is:

[0030] When installing the shell 2, insert the plug-in tube 7 on the shell 2 into the sleeve 5, and pull the ring 6 upward so that the ring 6 moves from the sleeve 5 to the shell 2. At the same time, the ring 6 will press the block 11 into the rectangular cavity 8 along the inclined surface of the block 11. At this time, the connecting plate 10 moves in the rectangular cavity 8, so that the top spring 9 is compressed until the ring 6 moves to the top of the block 11. At this time, the block 11 is pushed out of the rectangular cavity 8 under the action of the top spring 9, so that the top of the block 11 contacts the lower surface of the ring 6. The ring 6 is pulled downward by the spring telescopic rod 4, and the block 11 is used to prevent the ring 6 from moving downward, so that the shell 2 and the sleeve 5 can be spliced together. When the shell 2 needs to be disassembled, the block 11 is pushed into the rectangular cavity 8 to separate the block 11 from the ring 6.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0032] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automobile vacuum pump that is easy to maintain, comprising a vacuum pump body (1) and a housing (2), characterized in that: A disassembly and assembly mechanism is provided between the vacuum pump body (1) and the housing (2); The disassembly and assembly mechanism comprises a fixing plate (3) fixedly mounted on the surface of the vacuum pump body (1), a spring telescopic rod (4) and a sleeve (5) fixedly mounted on the surface of the fixing plate (3), a collar (6) fixedly mounted on the top of the spring telescopic rod (4), a plug-in sleeve (7) fixedly mounted on the bottom of the shell (2), a rectangular cavity (8) opened inside the shell wall of the shell (2), a top spring (9) fixedly mounted inside the rectangular cavity (8), a connecting plate (10) fixedly mounted on one end of the top spring (9), and a clamping block (11) penetrating to the outer surface of the shell (2) fixedly mounted on the surface of the connecting plate (10).

2. The automobile vacuum pump that is easy to maintain according to claim 1, characterized in that: The outer diameter of the housing (2) is the same as the outer diameter of the sleeve (5); the collar (6) is sleeved on the surface of the sleeve (5); and the inner surface of the collar (6) is in sliding contact with the surface of the sleeve (5).

3. The automobile vacuum pump that is easy to maintain according to claim 1, characterized in that: The inner diameter of the sleeve (5) is matched to the outer diameter of the plug-in sleeve (7), and the inner depth of the sleeve (5) is the same as the outer height of the plug-in sleeve (7).

4. The automobile vacuum pump that is easy to maintain according to claim 1, characterized in that: The external shape of the connecting plate (10) is the same as the internal shape of the rectangular cavity (8), and the external surface of the connecting plate (10) is in sliding contact with the internal surface of the rectangular cavity (8).

5. The automobile vacuum pump that is easy to maintain according to claim 1, characterized in that: The outer surface of the housing (2) is provided with a strip-shaped hole (12) communicating with the interior of the rectangular cavity (8), and the clamping block (11) is located in the strip-shaped hole (12).

6. The automobile vacuum pump easy to maintain according to claim 5, characterized in that: The external shape of the clamping block (11) is a triangle, and the inclined surface of the clamping block (11) faces one end of the plug-in cylinder (7).

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