Valve plate and valve block connecting structure in permanent magnet air compressor

Abstract

The utility model provides a valve plate and valve block connecting structure in a permanent magnet air compressor, and belongs to the field of air compression equipment. The problem that an existing valve plate assembly is inconvenient to assemble is solved. The valve plate and valve plate connecting structure in the permanent magnet air compressor comprises a valve plate, a pressing plate arranged on one side of the valve plate and a valve plate clamped between the valve plate and the pressing plate, the pressing plate is fixedly connected with the valve plate through a screw which sequentially penetrates through the pressing plate and the valve plate through a rod part and is screwed into the valve plate, the valve plate is provided with a vent hole right opposite to the end of the valve plate, and the valve plate covers the vent hole. Positioning grooves are formed in the positions, on the two sides of the width of the valve block, of the valve plate, guide blocks are formed on the two sides of the pressing plate, the two guide blocks are located in the two positioning grooves respectively, the two guide blocks are obliquely arranged, and the two guide blocks are gradually close to each other in the direction from the valve block to the pressing plate and make contact with the valve block. The valve plate and valve block connecting structure in the permanent magnet air compressor is convenient to assemble.

Description

Technical Field

[0001] The utility model belongs to the field of air compression equipment, and relates to a permanent magnet air compressor, in particular to a valve plate and valve sheet connection structure of a permanent magnet air compressor. Background Art

[0002] Permanent magnet air compressor is a high-efficiency and energy-saving air compressor. Its working principle is to convert electrical energy into mechanical energy, compress the air into high-pressure gas by compressing the air, and store it in a gas storage tank for subsequent use.

[0003] The valve plate and valve sheet are important parts of the permanent magnet air compressor. The connection method between the two is such as a valve plate assembly with noise reduction function disclosed in the Chinese Patent Library (application number: 201520388843.3), which includes a valve plate, a valve sheet, and a pressure plate. The valve plate is provided with a vent hole, a fixing hole and a fastener matching the fixing hole. Its characteristics are: it also includes a noise reduction sheet, and the pressure plate, the noise reduction sheet, and the valve sheet are sequentially covered on the vent hole from top to bottom, and the valve sheet, the pressure plate and the pressure plate are fixed to the valve plate by the same fastener.

[0004] In the above valve plate assembly, the pressing plate is generally in an inverted shape and is used to correct and position the valve plate. However, the two ends of the pressing plate are vertical, and when the position of the valve plate is placed with a large deviation, it will hinder the pressing of the pressing plate and affect the subsequent installation of fasteners. Utility Model Content

[0005] The utility model aims to solve the above problems in the prior art and proposes a valve plate and valve sheet connection structure in a permanent magnet air compressor which is convenient for assembly.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a valve plate and valve disc connection structure in a permanent magnet air compressor, comprising a valve plate, a pressure plate arranged on one side of the valve plate, and a valve disc clamped between the valve plate and the pressure plate, the pressure plate is connected to the valve plate by a screw that passes through the pressure plate and the valve disc in sequence through a rod and is screwed into the valve plate, a vent hole is provided on the valve plate opposite to the end of the valve disc, and the valve disc covers the vent hole, the valve plate is provided with positioning grooves on both sides of the width of the valve disc, guide blocks are formed on both sides of the pressure plate, and the two guide blocks are respectively located in the two positioning grooves, characterized in that the two guide blocks are arranged at an angle, and the two guide blocks gradually approach from the valve disc to the pressure plate and contact the valve disc.

[0007] The guide blocks are arranged at an angle, and the distance between the two guide blocks gradually decreases from the valve plate to the pressure plate. In this way, the inclined surface of the guide blocks can be used to smoothly and steadily correct the position of the valve plate when the pressure plate is pressed in, so that the automatic assembly process of the valve plate and valve plate can be carried out smoothly and stably, with the advantages of convenient assembly and stability.

[0008] In the above-mentioned valve plate and valve disc connection structure of the permanent magnet air compressor, an annular groove is provided on the side of the valve plate, and under the action of the annular groove, a block-shaped base is formed on the valve plate, and the outer side of the base is the inner side of the annular groove; the annular groove surrounds the above-mentioned valve disc, and the valve disc is clamped between the base and the pressure plate; the above-mentioned positioning groove is arranged on the bottom wall of the annular groove, and one end of the vent extends to the base. An annular groove is arranged on the valve plate to surround the valve disc, which acts as a partition to prevent dust from moving toward the base, ensuring that the valve disc and the base are stably attached to the base to cover the vent, so that the air compressor can operate stably.

[0009] In the valve plate and valve disc connection structure of the above-mentioned permanent magnet air compressor, the base and the valve disc are coaxially arranged, and the shape and size of the base are matched with the valve disc, so that the valve disc almost covers the base, thereby further preventing dust from falling directly onto the base and further enhancing the operating stability of the air compressor.

[0010] In the above-mentioned valve plate and valve disc connection structure of the permanent magnet air compressor, a transverse groove is provided through the middle of the base along the thickness direction of the base. The transverse groove is in the shape of a long strip. The length of the transverse groove extends along the width direction of the base, and both ends of the transverse groove are connected to the annular groove. Under the action of the transverse groove, the base is divided into multiple independent sections, so that the annular groove can accommodate more dust.

[0011] In the above-mentioned valve plate and valve sheet connection structure of the permanent magnet air compressor, there are two transverse grooves distributed along the length direction of the base.

[0012] In the above-mentioned valve plate and valve sheet connection structure of the permanent magnet air compressor, both sides of the middle part of the valve sheet are pressed tightly against the base and the pressure plate respectively, so that the valve sheet is more stably limited.

[0013] In the above-mentioned valve plate and valve sheet connection structure of the permanent magnet air compressor, the length of the pressure plate extends along the width direction of the valve sheet, and both ends of the pressure plate are bent downward to form the two guide blocks mentioned above, which has the advantages of simple structure and convenient processing.

[0014] Compared with the prior art, the valve plate and valve sheet connection structure in the permanent magnet air compressor has the following advantages:

[0015] 1. The guide blocks are inclined, and the distance between the two guide blocks gradually decreases from the valve plate to the pressure plate. In this way, the inclined surface of the guide blocks can be used to smoothly and steadily correct the position of the valve plate when the pressure plate is pressed in, so that the automatic assembly process of the valve plate and valve plate can be carried out smoothly and stably, with the advantages of convenient assembly and stability.

[0016] 2. An annular groove is set on the valve plate to surround the valve disc, which acts as a partition to prevent dust from moving toward the base, ensuring that the valve disc and the base are stably attached to the base to cover the vent hole and ensure stable operation of the air compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the valve plate and valve sheet connection structure in Example 1.

[0018] Figure 2 It is a structural diagram of the valve plate.

[0019] Figure 3 It is a connection diagram of the valve plate, valve sheet and pressure plate.

[0020] Figure 4 yes Figure 3 A magnified schematic diagram of center A.

[0021] Figure 5 This is a schematic diagram of the valve plate and valve sheet connection structure in Example 2

[0022] In the figure, 1, valve plate; 1a, vent hole; 1b, positioning groove; 1c, annular groove; 1d, base; 1d1, transverse groove; 2, pressure plate; 2a, guide block; 3, valve plate; 4, screw. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments. Embodiment 1

[0024] like Figure 1 , Figure 3 and Figure 4 As shown, the valve plate and valve sheet connection structure in the permanent magnet air compressor includes a valve plate 1, a pressure plate 2 arranged on one side of the valve plate 1, and a valve sheet 3 clamped between the valve plate 1 and the pressure plate 2, and at this time, the two side walls of the valve sheet 3 are pressed tightly on the pressure plate 2 and the valve plate 1 respectively.

[0025] in,

[0026] The pressing plate 2 is fixedly connected to the valve plate 1 by screws 4 which are passed through the pressing plate 2 and the valve plate 3 in sequence and are screwed into the valve plate 1 .

[0027] like Figure 2 and Figure 3 As shown, the valve plate 1 is provided with a vent hole 1a which is arranged opposite to the end of the valve plate 3, and the valve plate 3 covers the vent hole 1a. The valve plate 1 is provided with positioning grooves 1b on both sides of the width of the valve plate 3, that is, at this time, the two positioning grooves 1b extend along the width direction of the valve plate 3, and the valve plate 3 is located between the two positioning grooves 1b. Guide blocks 2a are formed on both sides of the pressure plate 2, and the two guide blocks 2a are respectively located in the two positioning grooves 1b. Figure 4 As shown, the two guide blocks 2a are both inclined, and the two guide blocks 2a gradually move toward the pressure plate 2 from the valve plate 3 and contact the valve plate 3.

[0028] The guide block 2a is arranged at an angle, and the distance between the two guide blocks 2a gradually decreases from the valve plate 3 to the pressure plate 2. In this way, when the pressure plate 2 is pressed in, the inclined surface of the guide block 2a can be used to smoothly and stably correct the position of the valve plate 3, so that the automated assembly process of the valve plate 1 and the valve plate 3 can be carried out smoothly and stably, which has the advantages of convenient and stable assembly.

[0029] In actual products, the guide block 2a and the positioning groove 1b are both in the shape of strips, and the lengths of the guide block 2a and the positioning groove 1b extend along the length direction of the valve plate 3 to more smoothly correct the position of the valve plate 3.

[0030] like Figure 1 and Figure 2 As shown, an annular groove 1c is provided on the side of the valve plate 1, and under the action of the annular groove 1c, a block-shaped base 1d is formed on the valve plate 1, and the outer side of the base 1d is the inner side of the annular groove 1c. The annular groove 1c surrounds the valve plate 3, and the valve plate 3 is clamped between the base 1d and the pressure plate 2. The positioning groove 1b is arranged on the bottom wall of the annular groove 1c, and one end of the vent 1a extends to the base 1d. The annular groove 1c is arranged on the valve plate 1 to surround the valve plate 3, which plays a partition role and blocks dust from moving toward the base 1d, ensuring that the valve plate 3 and the base 1d are stably close to the base 1d to cover the vent 1a, so that the air compressor can operate stably. Preferably, the base 1d and the valve plate 3 are coaxially arranged, and the shape and size of the base 1d match the valve plate 3, so that the valve plate 3 almost blocks the base 1d, thereby further preventing dust from falling directly onto the base 1d, and further enhancing the operating stability of the air compressor.

[0031] Further explanation, a transverse groove 1d1 is provided in the middle of the base 1d along the thickness direction of the base 1d. The transverse groove 1d1 is in the shape of a long strip. The length of the transverse groove 1d1 extends along the width direction of the base 1d, and both ends of the transverse groove 1d1 are connected to the annular groove 1c. Under the action of the transverse groove 1d1, the base 1d is divided into multiple independent sections, so that the annular groove 1c can accommodate more dust. Preferably, there are two transverse grooves 1d1 distributed along the length direction of the base 1d.

[0032] In the actual product, each end of the valve plate 3 corresponds to a vent hole 1a, and the two vent holes 1a are covered by the valve plate 3. At this time, the two sides of the middle of the valve plate 3 are pressed tightly against the base 1d and the pressure plate 2, so that the valve plate 3 is more stably limited.

[0033] In this embodiment, the length of the pressing plate 2 extends along the width direction of the valve plate 3, and both ends of the pressing plate 2 are bent downward to form the two guide blocks 2a, respectively, which has the advantages of simple structure and convenient processing. Embodiment 2

[0034] The structure and principle of the second embodiment are basically the same as those of the first embodiment, except that: Figure 5As shown, the pressing plate 2 is in the shape of an elongated strip, the length of the pressing plate 2 extends along the length direction of the valve plate 3 , the middle of the pressing plate 2 presses against the valve plate 3 , and the guide block 2 a is formed in the middle of the pressing plate 2 .

[0035] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A valve plate and valve disc connection structure in a permanent magnet air compressor, comprising a valve plate (1), a pressure plate (2) arranged on one side of the valve plate (1), and a valve disc (3) clamped between the valve plate (1) and the pressure plate (2), the pressure plate (2) being fixedly connected to the valve plate (1) by a screw (4) which passes through the pressure plate (2) and the valve disc (3) in sequence and is screwed into the valve plate (1), the valve plate (1) being provided with a vent hole (1a) arranged opposite to the end of the valve disc (3), and the valve disc (3) covering the vent hole (1a), the valve plate (1) being provided with positioning grooves (1b) on both sides of the width of the valve disc (3), guide blocks (2a) being formed on both sides of the pressure plate (2), and the two guide blocks (2a) being respectively located in the two positioning grooves (1b), characterized in that: The two guide blocks (2a) are both arranged in an inclined manner, and the two guide blocks (2a) gradually move closer from the valve plate (3) to the pressure plate (2) and contact the valve plate (3).

2. The valve plate and valve sheet connection structure in a permanent magnet air compressor according to claim 1, characterized in that: An annular groove (1c) is provided on the side surface of the valve plate (1), and under the action of the annular groove (1c), a block-shaped base (1d) is formed on the valve plate (1), and the outer side surface of the base (1d) is the inner side surface of the annular groove (1c); the annular groove (1c) surrounds the valve plate (3), and the valve plate (3) is clamped between the base (1d) and the pressure plate (2); the positioning groove (1b) is arranged on the bottom wall of the annular groove (1c), and one end of the vent hole (1a) extends to the base (1d).

3. The valve plate and valve sheet connection structure in a permanent magnet air compressor according to claim 2, characterized in that: The base (1d) and the valve plate (3) are coaxially arranged, and the shape and size of the base (1d) match those of the valve plate (3).

4. The valve plate and valve sheet connection structure in a permanent magnet air compressor according to claim 2 or 3, characterized in that: A transverse groove (1d1) is provided in the middle of the base (1d) along the thickness direction of the base (1d), the transverse groove (1d1) is in the shape of an elongated strip, the length of the transverse groove (1d1) extends along the width direction of the base (1d), and both ends of the transverse groove (1d1) are connected to the annular groove (1c).

5. The valve plate and valve sheet connection structure in a permanent magnet air compressor according to claim 4, characterized in that: There are two transverse grooves (1d1) distributed along the length direction of the base (1d).

6. The valve plate and valve sheet connection structure in a permanent magnet air compressor according to claim 1, characterized in that: Both sides of the middle of the valve plate (3) are tightly pressed against the base (1d) and the pressure plate (2) respectively.

7. The valve plate and valve sheet connection structure in a permanent magnet air compressor according to claim 1, characterized in that: The length of the pressing plate (2) extends along the width direction of the valve plate (3), and both ends of the pressing plate (2) are bent downward to form the two guide blocks (2a) mentioned above.

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