CN217021475U - Riveting device for pump cover of electric diaphragm vacuum pump - Google Patents
Riveting device for pump cover of electric diaphragm vacuum pump Download PDFInfo
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- CN217021475U CN217021475U CN202220724722.1U CN202220724722U CN217021475U CN 217021475 U CN217021475 U CN 217021475U CN 202220724722 U CN202220724722 U CN 202220724722U CN 217021475 U CN217021475 U CN 217021475U
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- riveting
- pump cover
- block
- riveting block
- fixed pressing
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Abstract
The utility model discloses a pump cover riveting device of an electric diaphragm vacuum pump, which comprises a riveting component, a positioning pin and a base, wherein the positioning pin is used for fixing a pump cover on the base in a mode that the inner side face of the pump cover faces upwards; the riveting assembly comprises a fixed pressing block, a left riveting block, a right riveting block, a heating wire bundle and a heating fixing rod, the upper end of the fixed pressing block is installed on an external pressing machine, the left riveting block and the right riveting block are installed on the lower portion of the fixed pressing block through bolts, the lower end faces of the left riveting block and the right riveting block correspond to the positions and the shapes of two pump cover holes, and the heating wire bundle and the heating fixing rod are installed in the left riveting block and the right riveting block. The riveting device can fix the air inlet and exhaust plug in the pump cover hole of the plastic pump cover.
Description
Technical Field
The utility model relates to a pump cover riveting device of an electric diaphragm vacuum pump.
Background
Thereby electronic diaphragm vacuum pump can relax more convenient when making the car braking for braking system provides the vacuum, is started by utility model to its high performance, high reliability and low energy consumption and have better adaptability to the environment, have been widely applied to various trades, trade such as chemical industry, car, medical treatment.
Two air passages are arranged inside a pump cover of the electric diaphragm vacuum pump, two pump cover holes are formed in the inner side surface of the pump cover and communicated with the two air passages respectively, a one-way valve plate and an air inlet plug are installed in one pump cover hole, and a one-way valve plate and an air exhaust plug are installed in the other pump cover hole. In the process of pumping and exhausting for many times, the air inlet and exhaust plugs in the pump cover are under the action of positive pressure and negative pressure for many times, and the risk that the air inlet and exhaust plugs axially move from the inner part of the pump cover hole and run out of the original position exists, so that the performance of the vacuum pump is insufficient or even the vacuum pump is wholly ineffective.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a riveting device for a pump cover of an electric diaphragm vacuum pump, which can fix an air inlet plug and an air outlet plug in a pump cover hole of the pump cover.
In order to solve the technical problems, the utility model adopts the following technical scheme: a pump cover riveting device of an electric diaphragm vacuum pump is characterized in that a pump cover is made of plastic materials, two air passages are arranged inside the pump cover, two pump cover holes are formed in the inner side surface of the pump cover and are respectively communicated with the two air passages, a one-way valve plate and an air inlet plug are installed in one pump cover hole, and a one-way valve plate and an air outlet plug are installed in the other pump cover hole; the riveting device comprises a riveting component, a positioning pin and a base, wherein the positioning pin is used for fixing the pump cover on the base in a mode that the inner side face of the pump cover faces upwards, and the riveting component is arranged above the pump cover; the riveting assembly comprises a fixed pressing block, a left riveting block, a right riveting block, a heating wire bundle and a heating fixing rod, the upper end of the fixed pressing block is installed on an external pressing machine, the left riveting block and the right riveting block are installed on the lower portion of the fixed pressing block through bolts, the lower end faces of the left riveting block and the right riveting block correspond to the positions and the shapes of two pump cover holes, and the heating wire bundle and the heating fixing rod are installed in the left riveting block and the right riveting block.
In one embodiment, the heating fixing rod transversely penetrates through the positions, close to the lower end faces, of the left riveting block and the right riveting block and is fastened through nuts.
In one embodiment, the fixing pressing block is provided with a mounting plate which faces downwards vertically, and the left riveting block and the right riveting block are respectively arranged on two sides of the mounting plate and are fixedly connected through bolts and nuts.
In one embodiment, the left riveting block and the right riveting block form a Chinese character 'ren'.
In one embodiment, the upper end of the fixed pressing block is provided with a stud, the fixed pressing block is installed on an external pressing machine through the stud, and the external pressing machine provides downward pressure and voltage for the riveting pressing assembly.
The using method of the utility model is as follows: the method comprises the steps that a plastic pump cover provided with an air inlet plug and an air outlet plug is fixed on a base through a pin shaft in a mode that the inner side faces upwards, a riveting assembly is installed on an external press above the pump cover, heating wire bundles in a left riveting block and a right riveting block are electrified to heat a heating fixing rod, the lower end faces of the left riveting block and the right riveting block are heated, then the external press drives the riveting assembly to move downwards, the lower end faces of the left riveting block and the right riveting block are in contact with the inner side face of the pump cover, plastics around a pump cover hole are melted by the high temperature of the left riveting block and the high temperature of the right riveting block, the melted plastics are tightly covered on the air inlet plug and the air outlet plug after being cooled by the external press, and then the plastic pump cover is cooled and molded, so that the two plugs can be heat-riveted at one time, and the purpose that the plugs are fixed in the pump cover hole and do not axially shift is achieved.
Drawings
FIG. 1 is a schematic view of a pump cover inner side surface structure in an embodiment of the present invention;
FIG. 2 is a schematic diagram of a pump cover outer side surface according to an embodiment of the present invention;
fig. 3 is a schematic view of the overall structure of the riveting device in the embodiment of the utility model;
FIG. 4 is a schematic diagram of the right-hand structure of FIG. 3;
FIG. 5 is a schematic diagram of the exploded structure of FIG. 3;
the reference signs are:
a, pump cover B, one-way valve sheet C, air inlet plug D and exhaust plug
1-positioning pin 2-base 3-fixed pressing block
4-left riveting block 5-right riveting block 6-heating wire harness
7-heating fixing rod 8-bolt 9-nut.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection through an intermediate medium, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 5, the preferred embodiment of the present invention is: a pump cover riveting device for an electric diaphragm vacuum pump is characterized in that a pump cover A is made of plastic materials, two air passages are arranged inside the pump cover A, two pump cover holes are formed in the inner side surface of the pump cover A and are respectively communicated with the two air passages, a one-way valve plate B and an air inlet plug C are arranged in one pump cover hole, and a one-way valve plate B and an air outlet plug D are arranged in the other pump cover hole; the riveting device comprises a riveting assembly, a positioning pin 1 and a base 2, wherein the positioning pin 1 is used for fixing the pump cover A on the base 2 in a mode that the inner side face is upward, and the riveting assembly is arranged above the pump cover A; the riveting component comprises a fixed pressing block 3, a left riveting block 4, a right riveting block 5, a heating wire bundle 6 and a heating fixing rod 7, wherein a stud is arranged at the upper end of the fixed pressing block 3, the fixed pressing block 3 is arranged on an external press through the stud, and the external press provides downward pressure and voltage for the riveting component; the left riveting block 4 and the right riveting block 5 are installed on the lower portion of the fixed pressing block 3 through two bolts 8, the lower end faces of the left riveting block 4 and the right riveting block 5 correspond to the positions and shapes of two pump cover holes, and heating wire bundles 6 and heating fixing rods 7 are installed in the left riveting block 4 and the right riveting block 5.
As shown in fig. 3, 4 and 5, in the present embodiment, the fixing pressing block 3 is provided with a vertically downward mounting plate, the left riveting block 4 and the right riveting block 5 are respectively arranged at two sides of the mounting plate and are connected and fixed by a bolt 8 and a nut 9, and a herringbone shape is formed between the left riveting block 4 and the right riveting block 5; the heating fixing rod 7 transversely penetrates through the positions, close to the lower end face, of the left riveting block 4 and the right riveting block 5, and then is connected and fastened through a nut 9.
The operation steps of this embodiment are as follows:
1) two positioning pins are arranged on the base, and the positioning pins are provided with limiting steps, so that the positioning pins can be directly arranged on the bottom;
2) the pump cover which is provided with the bowl-shaped plug and is pressed with the air inlet and outlet plug (containing the one-way valve plate) is positioned by the positioning pin and then is horizontally arranged on the base;
3) fixing the assembled riveting component on an external press through a stud at the upper end of the riveting component;
4) and switching on a power supply for heating, and meanwhile, slowly pressing the outer press to a proper position to enable the inner side surfaces of the end face pump covers of the left riveting block and the right riveting block to be in contact, melting plastics around the pump cover hole by the high temperature of the left riveting block and the right riveting block, and returning after cooling to finish riveting.
The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.
Some of the drawings and descriptions of the present invention have been simplified to facilitate the understanding of the improvements over the prior art by those skilled in the art, and some other elements have been omitted from this document for the sake of clarity, and it should be appreciated by those skilled in the art that such omitted elements may also constitute the subject matter of the present invention.
Claims (5)
1. A pump cover riveting device for an electric diaphragm vacuum pump is characterized in that a pump cover (A) is made of plastic materials, two air passages are arranged inside the pump cover (A), two pump cover holes are formed in the inner side surface of the pump cover (A) and are respectively communicated with the two air passages, a one-way valve plate (B) and an air inlet plug (C) are arranged in one pump cover hole, and a one-way valve plate (B) and an air outlet plug (D) are arranged in the other pump cover hole; the method is characterized in that: the riveting device comprises a riveting assembly, a positioning pin (1) and a base (2), wherein the positioning pin (1) is used for fixing the pump cover (A) on the base (2) in a mode that the inner side face faces upwards, and the riveting assembly is arranged above the pump cover (A); the riveting component comprises a fixed pressing block (3), a left riveting block (4), a right riveting block (5), a heating wire bundle (6) and a heating fixing rod (7), the upper end of the fixed pressing block (3) is installed on an external pressing machine, the left riveting block (4) and the right riveting block (5) are installed on the lower portion of the fixed pressing block (3) through bolts (8), the lower end faces of the left riveting block (4) and the right riveting block (5) correspond to the positions and shapes of two pump cover holes, and the heating wire bundle (6) and the heating fixing rod (7) are installed in the left riveting block (4) and the right riveting block (5).
2. A pump cover riveting device of an electric diaphragm vacuum pump according to claim 1, characterized in that: the heating fixing rod (7) transversely penetrates through the positions, close to the lower end face, of the left riveting block (4) and the right riveting block (5) and is connected and fastened through a nut (9).
3. An electric diaphragm vacuum pump cover riveting device according to claim 1 or 2, characterized in that: the fixed pressing block (3) is provided with a vertical downward mounting plate, and the left riveting block (4) and the right riveting block (5) are respectively arranged on two sides of the mounting plate and are fixedly connected through bolts (8) and nuts (9).
4. An electric diaphragm vacuum pump cover riveting device according to claim 3, characterized in that: the left riveting block (4) and the right riveting block (5) form a reversed V shape.
5. An electric diaphragm vacuum pump cover riveting device according to claim 1 or 2, characterized in that: the upper end of the fixed pressing block (3) is provided with a stud, the fixed pressing block (3) is installed on an external press through the stud, and the external press provides downward pressure and voltage for the riveting component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220724722.1U CN217021475U (en) | 2022-03-31 | 2022-03-31 | Riveting device for pump cover of electric diaphragm vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220724722.1U CN217021475U (en) | 2022-03-31 | 2022-03-31 | Riveting device for pump cover of electric diaphragm vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217021475U true CN217021475U (en) | 2022-07-22 |
Family
ID=82411981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220724722.1U Active CN217021475U (en) | 2022-03-31 | 2022-03-31 | Riveting device for pump cover of electric diaphragm vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217021475U (en) |
-
2022
- 2022-03-31 CN CN202220724722.1U patent/CN217021475U/en active Active
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