Intake valve of variable-frequency compressor

Abstract

The utility model discloses a variable-frequency compressor air inlet valve in the technical field of air inlet valves, which comprises a valve body, a sealing mechanism arranged on the inner side of the valve body, a dismounting and replacing mechanism arranged above the sealing mechanism, a sealing ring body arranged at the upper end of the valve body, a first sealing groove arranged at the lower end of the sealing ring body, and a first sealing washer arranged inside the first sealing groove. According to the variable-frequency compressor air inlet valve, the sealing mechanism and the dismounting and replacing mechanism are additionally arranged, the sealing mechanism is of a multi-set buffering type sealing structure, the sealing performance of the valve plug in the valve body can be ensured, the sealing effect of the valve plug is ensured, and the use safety and reliability of the valve body are improved; the dismounting and replacing mechanism is used in cooperation with the sealing mechanism, the sealing ring body and the buffer type sealing structure can be rapidly dismounted or mounted, replacement and maintenance operation can be conveniently conducted in the later period, and the practicability and reliability of the valve body are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air intake valves, in particular to a variable frequency compressor air intake valve. Background Art

[0002] The compressor intake valve is a key component in the compressor system. Its function is to control the intake air during the operation of the compressor to ensure that the gas is effectively compressed inside the compressor. It is mainly composed of a valve body, a valve core, a seal and other components. Through its unique structural design and working principle, it can achieve accurate control of the gas. When the compressor starts, the intake valve opens quickly to allow the gas to enter the compression chamber smoothly; during the compression process, the intake valve closes automatically to prevent gas backflow and ensure compression efficiency; when the compressor stops, the intake valve closes quickly to avoid gas leakage and protect the internal components of the compressor. Therefore, the quality of the compressor intake valve directly affects the operation effect and life of the compressor.

[0003] The patent document with application number CN201920826564.9 discloses a compressor intake valve, which includes a valve seat and a lift limiter arranged corresponding to the valve seat; the valve seat and the lift limiter are fixedly installed as a whole through a vertically installed central axis arranged in the middle position, and a gap is arranged between the valve seat and the lift limiter, and a valve plate is installed in the gap, the middle position of the valve plate is passed through by the central axis, and the valve plate can move on the central axis; the valve seat is provided with an air inlet hole, and the lift limiter is provided with an air outlet hole, and the air outlet hole and the air inlet hole are staggered. In the present device, the valve plate is only provided with a limiting hole which cooperates with the limiting sleeve, and the structure is simple and easy to manufacture, thereby reducing the cost and the manufacturing process; and the limiting sleeve can not only limit the upward and downward movement of the valve plate, but also realize the function of connecting the air intake by setting the air inlet, and correspondingly simplifies the structure of the valve plate, and the structure is ingenious and reasonable, and easy to use. Based on the search of the above patents and in combination with the compressor intake valve in the prior art, it is found that when the compressor intake valve is in use, the sealing performance of the seal inside the compressor intake valve is poor, and gas leakage is prone to occur, especially after long-term use, the sealing performance may be reduced, resulting in a decrease in the efficiency of the compressor and an increase in energy consumption. In addition, the gasket replacement process is complicated, and the entire valve body needs to be disassembled, which is not only time-consuming but also easy to damage the valve body and other components. Utility Model Content

[0004] The purpose of the utility model is to provide a variable frequency compressor intake valve to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a variable frequency compressor intake valve, comprising a valve body, a sealing mechanism is provided on the inner side of the valve body, a disassembly mechanism is arranged above the sealing mechanism, the sealing mechanism comprises a sealing ring body, a first sealing groove, a first sealing gasket and a first sealing ring, a sealing ring body is arranged at the upper end of the valve body, a first sealing groove is opened at the lower end of the sealing ring body, a first sealing gasket is arranged inside the first sealing groove, and a first sealing ring is arranged on the inner side of the first sealing gasket.

[0006] Optionally, the sealing mechanism further includes a valve plug, a sealing gasket body, a second sealing groove, a second sealing gasket and a second sealing ring, and the valve plug is installed inside the valve body.

[0007] Optionally, a sealing gasket body is fixedly mounted on the lower end of the valve plug, and the valve plug is located on the inner side of the sealing ring body.

[0008] Optionally, a second sealing groove is arranged above the first sealing groove, and a second sealing gasket is arranged inside the second sealing groove.

[0009] Optionally, a second sealing ring is arranged on the inner side of the second sealing gasket, and two groups of the first sealing groove, first sealing gasket, first sealing ring, second sealing groove, second sealing gasket and second sealing ring are distributed from top to bottom at the lower end of the sealing ring body.

[0010] Optionally, the disassembly and replacement mechanism includes a threaded seat body, a handle body, a threaded groove, a sealing plug groove and a leak-proof gasket, and a threaded seat body is arranged on the outer side of the sealing ring body.

[0011] Optionally, a thread groove is provided on the inner wall of the threaded seat body, and a handle body is fixedly mounted on the upper end of the sealing ring body.

[0012] Optionally, a sealing plug groove is opened at the lower end of the sealing ring body, and a leak-proof gasket is installed on the inner side of the sealing plug groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, a sealing mechanism and a disassembly and replacement mechanism are provided. The sealing mechanism adopts a plurality of groups of buffer-type sealing structures. The sealing mechanism can ensure the sealing of the valve plug in the valve body, effectively reduce gas leakage, and improve the efficiency and energy-saving performance of the compressor. The buffer-type sealing structure can absorb vibration and impact, extend the service life of the sealing component, and improve the reliability of the overall system. Compared with the traditional sealing structure, the plurality of groups of buffer-type sealing structures have a longer service life, and reduce the replacement frequency and maintenance cost of the seals; the disassembly and replacement mechanism makes the replacement process of the sealing ring body simpler, without the need to disassemble the entire valve body, saving replacement time and reducing the difficulty of maintenance; the disassembly and replacement mechanism ensures the correct installation of the sealing ring body and avoids the reduction of sealing performance due to improper operation. The setting of the disassembly and replacement mechanism enables the sealing ring body and the buffer-type sealing structure to be replaced in a shorter time, thereby ensuring the stable operation of the system and improving the overall reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model in a three-dimensional front view;

[0016] Figure 2 It is a schematic structural diagram of the utility model in a plane front view;

[0017] Figure 3 It is a schematic diagram of the structure of the utility model in a three-dimensional top view;

[0018] Figure 4 This is a schematic diagram of the structure of the utility model when viewed from above;

[0019] Figure 5 It is a schematic diagram of the structure of the utility model in a planar cross-section;

[0020] Figure 6 It is a schematic diagram of the structure of the utility model in a three-dimensional cutaway view;

[0021] Figure 7 For this utility model Figure 6 Schematic diagram of the three-dimensional enlarged structure at point A in the middle.

[0022] In the figure: 1. valve body; 2. sealing mechanism; 201. valve plug; 202. sealing gasket body; 203. sealing ring body; 204. first sealing groove; 205. first sealing gasket; 206. first sealing ring; 207. second sealing groove; 208. second sealing gasket; 209. second sealing ring; 3. disassembly and replacement mechanism; 301. threaded seat body; 302. handle body; 303. threaded groove; 304. sealing plug groove; 305. leak-proof gasket. DETAILED DESCRIPTION

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0025] 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.

[0026] See also Figures 1 to 7In an embodiment of the utility model, a variable frequency compressor intake valve comprises a valve body 1, a sealing mechanism 2 is provided on the inner side of the valve body 1, a disassembly mechanism 3 is arranged above the sealing mechanism 2, the sealing mechanism 2 comprises a sealing ring body 203, a first sealing groove 204, a first sealing gasket 205 and a first sealing ring 206, a sealing ring body 203 is provided at the upper end of the valve body 1, a first sealing groove 204 is provided at the lower end of the sealing ring body 203, a first sealing groove 204 is provided inside the first sealing groove 204, a first sealing gasket 205 is provided inside the first sealing gasket 205, a first sealing ring 206 is provided inside the first sealing gasket 205, the sealing mechanism 2 further comprises a valve plug 201, a sealing gasket body 202, a second sealing groove 207, a second sealing gasket 208 and a second sealing ring 209, a valve plug 201 is installed inside the valve body 1, a sealing gasket body 202 is fixedly installed at the lower end of the valve plug 201, and the valve plug 201 is located at On the inner side of the sealing ring body 203, a second sealing groove 207 is arranged above the first sealing groove 204, a second sealing gasket 208 is arranged on the inner side of the second sealing groove 207, and a second sealing ring 209 is arranged on the inner side of the second sealing gasket 208. Two groups of first sealing grooves 204, first sealing gaskets 205, first sealing rings 206, second sealing grooves 207, second sealing gaskets 208 and second sealing rings 209 are distributed from top to bottom at the lower end of the sealing ring body 203; the multiple groups of buffering structural design of the sealing ring body 203 effectively improves the sealing performance and reduces gas leakage. The first sealing groove 204 enables the first sealing gasket 205 and the first sealing ring 206 to be accurately installed, thereby improving the sealing effect; the second sealing groove 207 enables the second sealing gasket 208 and the second sealing ring 209 to be accurately installed, thereby further improving the sealing effect;

[0027] The disassembly and replacement mechanism 3 includes a threaded seat body 301, a rotating handle body 302, a threaded groove 303, a sealing plug groove 304 and a leak-proof gasket 305. The threaded seat body 301 is arranged on the outer side of the sealing ring body 203, and a threaded groove 303 is opened on the inner wall of the threaded seat body 301. The rotating handle body 302 is fixedly installed on the upper end of the sealing ring body 203, and a sealing plug groove 304 is opened at the lower end of the sealing ring body 203. The leak-proof gasket 305 is installed on the inner side of the sealing plug groove 304; the threaded seat body 301 makes the installation and disassembly of the sealing ring body 203 more convenient, and improves the replacement efficiency. The rotating handle body 302 makes the operation more convenient, and the user can easily remove and install the sealing ring body 203; the threaded groove 303 enables the sealing ring body 203 to be firmly installed on the threaded seat body 301 to prevent loosening. The sealing plug groove 304 and the leak-proof gasket 305 help to prevent gas leakage and ensure the efficient operation of the system.

[0028] The working principle of the utility model is as follows: the variable frequency compressor intake valve is additionally provided with a sealing mechanism 2 and a dismantling mechanism 3. When the compressor intake valve is used, the dismantling mechanism 3 is activated, the handle body 302 and the sealing ring body 203 are rotated upward, the sealing ring body 203 is taken out as a whole, and then the first sealing gasket 205 and the first sealing ring 206 are inserted into the first sealing groove 204, and the second sealing gasket 208 and the second sealing ring 209 are inserted into the second sealing groove 207, and then the handle body 302 and the sealing ring body 203 are rotated downward, the sealing ring body 203 is inserted into the threaded seat body 301, and the leakproof gasket 305 is squeezed into the sealing plug groove 304 to achieve a sealing effect. During use, when the valve body 1 is activated, the valve plug 20 1 and the sealing gasket body 202 move upward to perform the valve closing operation. At this time, the valve plug 201 contacts the first sealing ring 206 and the second sealing ring 209, and then squeezes the first sealing gasket 205, the first sealing ring 206, the second sealing gasket 208 and the second sealing ring 209 to achieve a sealing effect; in summary, the sealing mechanism 2 adopts a plurality of groups of buffering sealing structures, which can ensure the sealing of the valve plug 201 in the valve body 1, ensure the sealing effect of the valve plug 201, and improve the safety and reliability of the use of the valve body 1. The disassembly and replacement mechanism 3 is used in conjunction with the sealing mechanism 2, and the sealing ring body 203 and the buffering sealing structure can be quickly disassembled or installed, which is convenient for later replacement and maintenance operations, and effectively improves the practicality and reliability of the valve body 1.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A variable frequency compressor intake valve, comprising a valve body (1), characterized in that: A sealing mechanism (2) is provided on the inner side of the valve body (1), and a disassembly mechanism (3) is provided above the sealing mechanism (2). The sealing mechanism (2) comprises a sealing ring body (203), a first sealing groove (204), a first sealing gasket (205) and a first sealing ring (206). The sealing ring body (203) is provided at the upper end of the valve body (1), and a first sealing groove (204) is provided at the lower end of the sealing ring body (203). A first sealing gasket (205) is provided inside the first sealing groove (204), and a first sealing ring (206) is provided on the inner side of the first sealing gasket (205).

2. The variable frequency compressor intake valve according to claim 1, characterized in that: The sealing mechanism (2) further comprises a valve plug (201), a sealing gasket body (202), a second sealing groove (207), a second sealing gasket (208) and a second sealing ring (209); the valve plug (201) is installed inside the valve body (1).

3. The variable frequency compressor intake valve according to claim 2, characterized in that: A sealing gasket body (202) is fixedly mounted on the lower end of the valve plug (201), and the valve plug (201) is located on the inner side of the sealing ring body (203).

4. The variable frequency compressor intake valve according to claim 3, characterized in that: A second sealing groove (207) is provided above the first sealing groove (204), and a second sealing gasket (208) is provided inside the second sealing groove (207).

5. The variable frequency compressor intake valve according to claim 4, characterized in that: A second sealing ring (209) is arranged on the inner side of the second sealing gasket (208), and two groups of the first sealing groove (204), the first sealing gasket (205), the first sealing ring (206), the second sealing groove (207), the second sealing gasket (208) and the second sealing ring (209) are distributed from top to bottom at the lower end of the sealing ring body (203).

6. The variable frequency compressor intake valve according to claim 1, characterized in that: The disassembly and replacement mechanism (3) comprises a threaded seat body (301), a rotating handle body (302), a threaded groove (303), a sealing plug groove (304) and a leak-proof gasket (305); the threaded seat body (301) is arranged on the outer side of the sealing ring body (203).

7. The variable frequency compressor intake valve according to claim 6, characterized in that: A thread groove (303) is provided on the inner wall of the threaded seat body (301), and a turning handle body (302) is fixedly mounted on the upper end of the sealing ring body (203).

8. The variable frequency compressor intake valve according to claim 6, characterized in that: A sealing plug groove (304) is provided at the lower end of the sealing ring body (203), and a leak-proof gasket (305) is installed inside the sealing plug groove (304).

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