A reciprocating vacuum pump with dust removal function

Abstract

The utility model belongs to the technical field of vacuum pumps, and particularly relates to a reciprocating vacuum pump with a dust removal function, comprising a vacuum pump body, an air inlet and an air outlet, wherein a dust removal device is arranged inside the air inlet. The reciprocating vacuum pump with a dust removal function is provided with a dust removal unit, and the protrusions at the left and right ends of the frame are installed in the slide rails provided in the air inlet, and then the frame is pushed to drive the filter to move inside the air inlet until the clamping rod and the through hole provided in the air inlet are located on the same straight line, and the push plate is pushed under the action of spring 2 to drive the clamping rod to engage with the through hole to complete the installation of the filter, and when the vacuum pump is started, the dust in the drawn-in gas is filtered through the filter, thereby preventing the dust from accumulating inside the vacuum pump body, and solving the problem in the background technology that the dust and other impurities in the introduced air cannot be filtered during use, resulting in the accumulation of impurities inside the vacuum pump, thus affecting the service life of the vacuum pump.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pumps, in particular to a reciprocating vacuum pump with a dust removal function. Background Art

[0002] A vacuum pump is a device that uses mechanical, physical and other methods to evacuate the container to obtain a vacuum. It has the advantages of high vacuum degree, high exhaust efficiency and the ability to work normally under poor conditions, making it relatively reliable. Therefore, it has been widely used in the fields of petroleum, chemical, medicine, metallurgy, electrical and aerospace models.

[0003] The reciprocating vacuum pump is also called a piston vacuum pump, which includes a pump body and a motor that drives the pump body. The pump body includes a housing, a cylinder, a piston and a piston connecting rod arranged in the housing, a valve plate is fixedly arranged on the housing, and a valve hole and a variable valve are arranged on the valve plate. When the piston slides up and down in the cylinder, the air pressure can drive the valve to open, thereby opening the valve hole.

[0004] The reciprocating vacuum pump in the prior art often uses a crank to drive a piston connecting rod, which in turn drives the piston to reciprocate. It has the advantages of simple structure and easy implementation, but the connection between the crank and the piston connecting rod is easily damaged, which leads to low transmission efficiency and high operating noise. In addition, during operation, the movement of the piston easily causes the inner wall of the cylinder to be worn, and the sealing between the piston and the cylinder is reduced, resulting in unsatisfactory air extraction effect of the vacuum pump.

[0005] For example, a reciprocating vacuum pump disclosed in Chinese patent CN210164599U, the output shaft of the double-axle extension motor rotates to drive the eccentric wheel to perform circular motion around the output shaft, the eccentric wheel drives the connecting rod to move through the bearing, and the connecting rod drives the piston to reciprocate in the cylinder sleeve. The bearing is used to transmit the power between the eccentric wheel and the connecting rod, which ensures that the friction coefficient of the bearing is reduced during the transmission process, thereby improving the overall service life of the parts and components, and ensuring the rotation accuracy, which is conducive to the efficient transmission of motion. A nano-ceramic coating is provided on the inner wall of the cylinder body, which significantly improves the wear resistance of the cylinder body. The cylinder body can also maintain a good sealing effect after long-term operation, thereby extending the service life of the equipment.

[0006] However, the device is unable to filter impurities such as dust in the incoming air during use, resulting in the accumulation of impurities inside the vacuum pump, thus affecting the service life of the vacuum pump.

[0007] For this reason, we urgently need to provide a reciprocating vacuum pump with dust removal function. Utility Model Content

[0008] The purpose of the utility model is to provide a reciprocating vacuum pump with a dust removal function, so as to solve the problem proposed in the above-mentioned background technology that dust and other impurities in the incoming air cannot be filtered during use, resulting in the accumulation of impurities inside the vacuum pump, thus affecting the service life of the vacuum pump.

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a reciprocating vacuum pump with a dust removal function, comprising a vacuum pump body, an air inlet and an air outlet, wherein the air inlet is connected to the front side of the vacuum pump body, the air outlet is connected to the left side of the rear end of the vacuum pump body, and a dust removal device is arranged inside the air inlet.

[0010] The dust removal device comprises a dust removal unit and a disassembly unit, wherein the dust removal unit is arranged inside the air inlet, and the disassembly unit is arranged outside the air inlet.

[0011] The dust removal unit includes a frame, a filter, a slide rail, a spring 1, a protrusion, a spring 2, a push plate and a clamping rod. The frame is installed inside the air inlet, the filter is fixedly installed inside the frame, the slide rail is opened on the left and right sides of the air inlet, the spring 1 is fixedly installed inside the slide rail, the protrusion is fixedly installed on the left and right sides of the frame, one end of the spring 2 is fixedly installed inside the protrusion, the push plate is fixedly installed at the other end of the spring 2, and the clamping rod is fixedly installed at the end of the push plate away from the spring 2.

[0012] Preferably, the disassembly unit includes a bracket, a push rod, a spring three and a disc, the bracket is fixedly installed on the left and right sides of the outer surface of the air inlet, the push rod is installed inside the bracket, one end of the spring three is fixedly installed on one side of the bracket and is located outside the push rod, and the disc is fixedly installed on one end of the push rod.

[0013] Preferably, a through hole is provided inside the slide rail. When installing the filter, the frame is pushed to make the protrusion slide along the inside of the slide rail. When the clamping rod and the through hole are located in the same straight line, the push plate is pushed under the left and right of spring 1 to drive the clamping rod to engage with the through hole, thereby facilitating the installation of the filter inside the air inlet.

[0014] Preferably, a mounting cavity is provided inside the protrusion, and the size of the mounting cavity is equal to that of the push plate. The push plate and spring 2 are installed through the mounting cavity, and the push plate can be pushed to move left and right along the mounting cavity under the left and right sides of spring 2.

[0015] Preferably, the end of the spring three away from the bracket is fixedly connected to one side of the disc, and the disc is pushed to squeeze the spring three, so that the push rod moves along the through hole, and the push rod pushes the clamping rod to squeeze the spring two, so that the clamping rod is separated from the through hole, thereby facilitating the disassembly of the filter.

[0016] Preferably, one end of the clamping rod away from the push plate is hemispherical, so that the clamping rod can be more easily clamped with the through hole.

[0017] Preferably, the end of the push rod away from the disc is located inside the through hole opened by the air inlet, and a sealing gasket is installed at the connection between the push rod and the air inlet, so as to prevent dust from entering the through hole and clogging the through hole.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The reciprocating vacuum pump with dust removal function is provided with a dust removal unit, and the protrusions at the left and right ends of the frame are installed in the slide rails provided in the air inlet, and then the frame is pushed to drive the filter to move toward the inside of the air inlet until the clamping rod and the through hole provided in the air inlet are located in the same straight line, and the push plate is pushed under the action of the second spring to drive the clamping rod to engage with the through hole, thereby completing the installation of the filter. When the vacuum pump is started, the dust in the drawn-in gas is filtered through the filter, thereby preventing the dust from accumulating inside the vacuum pump body. The installation is convenient and the service life of the vacuum pump is improved at the same time, which solves the problem in the background technology that the dust and other impurities in the introduced air cannot be filtered during use, resulting in the accumulation of impurities inside the vacuum pump, thus affecting the service life of the vacuum pump.

[0020] 2. The reciprocating vacuum pump with dust removal function is provided with a disassembly unit. When the filter needs to be disassembled and cleaned, it is only necessary to squeeze the left and right disks so that the push rod pushes the clamping rod to squeeze the spring 2, so that the clamping rod is separated from the through hole, and the frame is pushed out of the air inlet under the left and right of the spring 1, thereby realizing the disassembly of the filter. The disassembly is convenient, so that the filter is easy to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a disassembled view of the connection between the air inlet and the frame of the utility model;

[0023] Figure 3 This is a disassembled diagram of the connection between the frame and the filter screen of the utility model;

[0024] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0025] Figure 5 This is a disassembled view of the connection between the disassembly unit and the air inlet of the utility model.

[0026] In the figure: 1, vacuum pump body; 2, air inlet; 3, air outlet; 401, frame; 402, filter; 403, slide rail; 404, spring one; 405, bump; 406, spring two; 407, push plate; 408, lever; 501, bracket; 502, push rod; 503, spring three; 504, disc. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-Figure 5 , the utility model provides a technical solution: Example

[0029] A reciprocating vacuum pump with dust removal function comprises a vacuum pump body 1, an air inlet 2 and an air outlet 3, wherein the air inlet 2 is connected to the front of the vacuum pump body 1, the air outlet 3 is connected to the left side of the rear end of the vacuum pump body 1, and a dust removal device is arranged inside the air inlet 2.

[0030] The dust removal device includes a dust removal unit and a disassembly unit. The dust removal unit is arranged inside the air inlet 2, and the disassembly unit is arranged outside the air inlet 2.

[0031] The dust removal unit includes a frame 401, a filter 402, a slide rail 403, a spring 1 404, a protrusion 405, a spring 2 406, a push plate 407 and a clamping rod 408. The frame 401 is installed inside the air inlet 2, and the filter 402 is fixedly installed inside the frame 401. The dust and other impurities entering the air are filtered through the filter 402. The slide rail 403 is opened on the left and right sides of the air inlet 2. A through hole is opened inside the slide rail 403. When the filter 402 is installed, the frame 401 is pushed to make the protrusion 405 slide along the inside of the slide rail 403. When the clamping rod 408 and the through hole are located on the same straight line, the push plate 407 is pushed under the left and right sides of the spring 1 404 to drive the clamping rod 408 to clamp with the through hole, so as to facilitate the filter. The net 402 is installed inside the air inlet 2, the spring 1 404 is fixedly installed inside the slide rail 403, the protrusion 405 is fixedly installed on the left and right sides of the frame 401, and an installation cavity is opened inside the protrusion 405, and the size of the installation cavity is equal to the size of the push plate 407. The push plate 407 and the spring 2 406 are installed through the installation cavity. At the same time, the push plate 407 can be pushed to move left and right along the installation cavity under the left and right sides of the spring 2 406. One end of the spring 2 406 is fixedly installed inside the protrusion 405, and the push plate 407 is fixedly installed at the other end of the spring 2 406. The clamping rod 408 is fixedly installed at the end of the push plate 407 away from the spring 2 406. The end of the clamping rod 408 away from the push plate 407 is hemispherical, so that the clamping rod 408 can be more easily connected with the through hole. Example

[0032] On the basis of Example 1: the disassembly unit includes a bracket 501, a push rod 502, a spring three 503 and a disc 504, the bracket 501 is fixedly installed on the left and right sides of the outer surface of the air inlet 2, the push rod 502 is installed inside the bracket 501, one end of the spring three 503 is fixedly installed on one side of the bracket 501 and is located on the outside of the push rod 502, and the end of the spring three 503 away from the bracket 501 is fixedly connected to one side of the disc 504, and the spring three 503 is squeezed by pushing the disc 504, so that the push rod 502 moves along the through hole, so that the push rod 502 pushes the clamping rod 408 to squeeze the spring two 406, so that the clamping rod 408 is separated from the through hole, thereby facilitating the disassembly of the filter 402, and the disc 504 is fixedly installed at one end of the push rod 502. Example

[0033] On the basis of the second embodiment: the end of the push rod 502 away from the disc 504 is located inside the through hole opened by the air inlet 2, and a sealing gasket is installed at the connection between the push rod 502 and the air inlet 2, so as to prevent dust from entering the through hole and clogging the through hole.

[0034] When in use, the protrusions 405 at the left and right ends of the frame 401 are installed in the slide rails 403 opened in the air inlet 2, and at the same time, the clamping rod 408 pushes the push plate 407 to squeeze the second spring 406, so that the clamping rod 408 retracts into the protrusion 405, and then the frame 401 is pushed to drive the filter 402 to move toward the inside of the air inlet 2. During the movement of the frame 401, the spring 1 404 is squeezed until the clamping rod 408 and the through hole opened in the air inlet 2 are located in the same straight line, and under the action of the second spring 406, the push plate 407 is pushed to drive the clamping rod 408 to engage with the through hole, thereby completing the clamping of the filter 4 02 is installed. When the vacuum pump is started, the dust in the drawn-in gas is filtered through the filter 402, so as to prevent the dust from accumulating inside the vacuum pump body 1 and affecting the service life of the vacuum pump body 1. When the filter 402 needs to be disassembled and cleaned, it is only necessary to squeeze the left and right disks 504 so that the push rod 502 pushes the clamping rod 408 to squeeze the spring 2 406, so that the clamping rod 408 is separated from the through hole, and under the left and right of the spring 1 404, the frame 401 is pushed out of the air inlet 2, so as to realize the disassembly of the filter 402, and then the filter 402 can be cleaned.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A reciprocating vacuum pump with a dust removal function, comprising a vacuum pump body (1), an air inlet (2) and an air outlet (3), wherein the air inlet (2) is connected to the front of the vacuum pump body (1), and the air outlet (3) is connected to the left side of the rear end of the vacuum pump body (1), characterized in that: A dust removal device is provided inside the air inlet (2); The dust removal device comprises a dust removal unit and a disassembly unit, the dust removal unit is arranged inside the air inlet (2), and the disassembly unit is arranged outside the air inlet (2); The dust removal unit comprises a frame (401), a filter (402), a slide rail (403), a spring 1 (404), a bump (405), a spring 2 (406), a push plate (407) and a clamping rod (408); the frame (401) is installed inside the air inlet (2); the filter (402) is fixedly installed inside the frame (401); the slide rail (403) is opened on the left and right sides of the air inlet (2); the spring 1 (404) is fixedly installed inside the slide rail (403); the bump (405) is fixedly installed on the left and right sides of the frame (401); one end of the spring 2 (406) is fixedly installed inside the bump (405); the push plate (407) is fixedly installed on the other end of the spring 2 (406); and the clamping rod (408) is fixedly installed on one end of the push plate (407) away from the spring 2 (406).

2. A reciprocating vacuum pump with dust removal function according to claim 1, characterized in that: The disassembly unit comprises a bracket (501), a push rod (502), a spring three (503) and a disc (504); the bracket (501) is fixedly mounted on the left and right sides of the outer surface of the air inlet (2); the push rod (502) is mounted inside the bracket (501); one end of the spring three (503) is fixedly mounted on one side of the bracket (501) and is located outside the push rod (502); and the disc (504) is fixedly mounted on one end of the push rod (502).

3. A reciprocating vacuum pump with dust removal function according to claim 1, characterized in that: The slide rail (403) is provided with a through hole inside, when the filter screen (402) is installed.

4. A reciprocating vacuum pump with dust removal function according to claim 1, characterized in that: The protrusion (405) has an installation cavity inside, and the size of the installation cavity is equal to the size of the push plate (407).

5. A reciprocating vacuum pump with dust removal function according to claim 2, characterized in that: One end of the spring three (503) away from the bracket (501) is fixedly connected to one side of the disc (504).

6. A reciprocating vacuum pump with dust removal function according to claim 1, characterized in that: One end of the clamping rod (408) away from the push plate (407) is hemispherical.

7. A reciprocating vacuum pump with dust removal function according to claim 2, characterized in that: One end of the push rod (502) away from the disc (504) is located inside a through hole opened in the air inlet (2), and a sealing gasket is installed at the connection between the push rod (502) and the air inlet (2).

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