Oil cylinder pressure regulating valve structure of diaphragm compressor

Abstract

The utility model discloses a diaphragm compressor oil cylinder pressure regulating valve structure which comprises a valve seat, a mounting seat and a balance valve, the mounting seat is embedded in the middle of the valve seat, the balance valve is fixed at the top of the upper end of the mounting seat, and one end of the valve seat is communicated with a discharge pipeline for discharging hydraulic oil. A plurality of screw holes are formed in the periphery of the mounting base, a partition plate is fixed to one side of the mounting base, and a pressure measuring pipeline is fixed to the side, away from an inner cavity of the mounting base, of the partition plate. When the diaphragm compressor oil cylinder pressure regulating valve structure is used, the valve seat serves as a supporting and fixing part of the whole pressure regulating valve, the whole pressure regulating valve is formed through reverse mold casting, the valve seat and the installation seat are designed in a split mode, when a certain part is damaged, the valve seat and the installation seat of the pressure regulating valve designed in the split mode can be separated, and therefore the valve seat and the installation seat are not damaged. The requirement for quick replacement of new parts is met, and the maintenance difficulty of the whole pressure regulating valve is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm compressor oil cylinder pressure regulating components, in particular to a diaphragm compressor oil cylinder pressure regulating valve structure. Background Art

[0002] The diaphragm compressor is a reciprocating compressor that relies on the reciprocating motion of the diaphragm in the cylinder to compress and transport gas. The cylinder pressure regulating valve, as a component of the diaphragm compressor that regulates the hydraulic oil in the cylinder, plays a vital role. A good pressure regulating valve can bring good economic benefits to the enterprise. At the same time, it is easy to maintain and has a long service life, which is also an indispensable part.

[0003] The utility model discloses an automatic balancing and pressure regulating valve for an oil cylinder (CN214998542U), comprising a valve body, a valve cover, a protruding valve core, a concave valve core and a reset spring, wherein an annular array of the valve body is tightly and fixedly connected to the outer periphery of a piston in the oil cylinder, the protruding valve core extends vertically upward, the concave valve core is hidden in the valve body, the center of the valve body is through-connected, a pressure regulating oil chamber is arranged inside, a valve cover is screwed on the rear end, the center of the valve cover is through-connected, a threaded section is arranged at one end, the threaded section is screwed and sealed with a threaded hole provided in the pressure regulating oil chamber of the valve body, the protruding valve core comprises a protruding valve stem portion, a conical plug and a positioning column, and the concave valve core also comprises a concave valve stem portion, a conical plug and a positioning column, the automatic balancing and pressure regulating valve for an oil cylinder synchronizes the lifting actions of two oil cylinders in a single hydraulic oil circuit system, can assist the hydraulic rod in the oil cylinder to quickly adjust the oil pressure in the oil inlet chamber and the oil outlet chamber, so that the oil pressure in the oil inlet chamber and the oil outlet chamber of the series oil cylinder is balanced, and the internal circulation and cleaning are convenient, the lifting action synchronization effect is good, and the lifting efficiency is high. However, since the pressure regulating valve adopts an integrated design, once a component is damaged during use, it can only be repaired by replacing a new valve body, and the old valve body can only be discarded, which brings certain troubles to the user.

[0004] Therefore, we propose a diaphragm compressor cylinder pressure regulating valve structure. Utility Model Content

[0005] The utility model aims to provide a diaphragm compressor oil cylinder pressure regulating valve structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a diaphragm compressor cylinder pressure regulating valve structure, including a valve seat, a mounting seat and a balancing valve, a mounting seat is embedded in the middle of the valve seat, and a balancing valve is fixed to the top of the upper end of the mounting seat, one end of the valve seat is connected to a discharge pipe for discharging hydraulic oil, and the end of the valve seat away from the discharge pipe is connected to an access pipe for accessing hydraulic oil, a plurality of screw holes are provided around the mounting seat, and a partition is fixed to one side of the mounting seat, a pressure measuring pipe is fixed to the side of the partition away from the inner cavity of the mounting seat, and a through hole is provided on the partition along the center of the pressure measuring pipe, a limit seat is integrally provided in the middle of the mounting seat, and a valve core is movably connected to the inner wall of the limit seat, a through hole for the flow of hydraulic oil is provided in the middle of the limit seat, and the valve core is controlled by the balancing valve.

[0007] Furthermore, a cavity is provided in the middle of the valve seat, and a connecting nozzle is connected to the valve seat along one side of the cavity.

[0008] Furthermore, the valve seat is embedded with mutually matching sealing rings along the periphery of the chamber.

[0009] Furthermore, a pressure gauge is fixed to the inner wall of the connecting nozzle for detecting the oil pressure of the pressure measuring pipeline.

[0010] Furthermore, the other end of the access pipe is connected to a connecting pipe, and a connecting thread is provided at the connection between the connecting pipe and the access pipe, and the access pipe is connected through the connecting thread. Further, one side of the balancing valve is connected to a pair of adjusting air nozzles, and external threads are provided around the outer wall of the lower end of the balancing valve.

[0011] Furthermore, the balancing valve is screwed with a fastening screw disk via an external thread, and the fastening screw disk covers the upper part of the connection between the valve seat and the mounting seat.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: when the diaphragm compressor cylinder pressure regulating valve structure is in use, the valve seat serves as a supporting and fixing component of the entire pressure regulating valve, and the whole is formed by reverse mold casting, and the valve seat and the mounting seat adopt a split design. When a certain component is damaged, the split-design pressure regulating valve can separate the valve seat and the mounting seat, thereby meeting the demand for rapid replacement of new components and reducing the difficulty of maintenance of the entire pressure regulating valve.

[0013] The fastening screw plate is used as a pressing piece and is distributed along the upper part of the connection between the valve seat and the mounting seat to ensure that the valve seat and the mounting seat are tightly connected together, thereby meeting the fixing requirements of the entire split pressure regulating valve.

[0014] The mounting seat serves as a fixing component of the balancing valve and the valve core and is made of one-piece reverse casting. The inner cavity in the mounting seat matches the chambers on both sides of the valve seat to ensure the rationality of the entire pressure regulating valve. The pressure gauge detects the oil pressure sent into the pressure measuring pipeline to meet the user's needs to adjust the balancing valve according to the oil pressure on the pressure gauge. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the valve seat in the utility model;

[0017] Figure 3 It is a structural schematic diagram of the mounting seat in the utility model.

[0018] In the figure: 1. valve seat; 11. chamber; 12. sealing ring; 13. connecting nozzle; 2. mounting seat; 21. screw hole; 22. partition; 23. pressure measuring pipe; 24. limit seat; 25. valve core; 3. balancing valve; 31. regulating air nozzle; 32. external thread; 4. pressure gauge; 5. discharge pipe; 6. access pipe; 61. connecting thread; 62. connecting pipe; 7. fastening screw plate. DETAILED DESCRIPTION

[0019] 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.

[0020] Example 1

[0021] See also Figure 1-3The utility model provides a technical solution: a diaphragm compressor cylinder pressure regulating valve structure, including a valve seat 1, a mounting seat 2 and a balancing valve 3, the middle part of the valve seat 1 is embedded with the mounting seat 2, and the top of the upper end of the mounting seat 2 is fixed with a balancing valve 3, one end of the valve seat 1 is connected with a discharge pipe 5 for discharging hydraulic oil, and the end of the valve seat 1 away from the discharge pipe 5 is connected with an access pipe 6 for accessing hydraulic oil, a plurality of screw holes 21 are provided around the mounting seat 2, and a partition 22 is fixed on one side of the mounting seat 2, a pressure measuring pipe 23 is fixed on the side of the partition 22 away from the inner cavity of the mounting seat 2, and a through hole is provided on the partition 22 along the center of the pressure measuring pipe 23, a limited seat 24 is integrally provided in the middle part of the mounting seat 2, and a valve core 25 is movably connected to the inner wall of the limited seat 24, a through hole for the flow of hydraulic oil is provided in the middle part of the limited seat 24, the valve core 25 is controlled by the balancing valve 3, and the valve seat 1 is provided with a chamber 11 in the middle part, and the valve seat 1 is connected with a connecting nozzle 13 along one side of the chamber 11, and the valve seat 1 is embedded with mutually matching sealing rings 12 along the four sides of the chamber 11, and the sealing ring 12 performs sealing protection between the valve seat 1 and the mounting seat 2, and a pressure gauge 4 for detecting pressure is fixed to the inner wall of the connecting nozzle 13, which is used to detect the oil pressure of the pressure measuring pipeline 23. The valve seat 1 is a supporting and fixing component of the entire pressure regulating valve, and the whole is formed by reverse mold casting, and the valve seat 1 and the mounting seat 2 adopt a split design. When a certain component is damaged, the split-design pressure regulating valve can separate the valve seat 1 and the mounting seat 2, which meets the demand for rapid replacement of new components and reduces the difficulty of repairing the entire pressure regulating valve. At the same time, sealing rings 12 for sealing protection are embedded on both sides of the inner wall of the valve seat 1 to ensure high sealing between the valve seat 1 and the mounting seat 2.

[0022] Example 2

[0023] See also Figure 1-3The utility model provides a technical solution: a diaphragm compressor cylinder pressure regulating valve structure, the other end of the access pipe 6 is connected to a connecting pipe 62, and a connecting thread 61 is provided at the connection between the connecting pipe 62 and the access pipe 6, and the access pipe 6 is threadedly detachably connected to the connecting pipe 62 through the connecting thread 61. The connecting pipe 62 is used as a connecting pipe with the compressor cylinder, and is connected in a threaded access manner, which is convenient for users to quickly connect and use. The other end of the access pipe 6 is connected to a connecting pipe 62, and a connecting thread 61 is provided at the connection between the connecting pipe 62 and the access pipe 6, and the access pipe 6 is further connected through the connecting thread. A pair of regulating air nozzles 31 are respectively connected to one side of the balancing valve 3, and external threads 32 are provided around the outer wall of the lower end of the balancing valve 3. The balancing valve 3 is screwed with a fastening screw plate 7 through the external thread 32, and the fastening screw plate 7 covers the upper part of the connection between the valve seat 1 and the mounting seat 2. The disk 7 is used as a pressing part and is distributed along the upper part of the connection between the valve seat 1 and the mounting seat 2 to ensure that the valve seat 1 and the mounting seat 2 are tightly connected together to meet the fixing requirements of the entire split pressure regulating valve. The mounting seat 2 is used as a fixing component of the balancing valve 3 and the valve core 25 and is made of an integral reverse mold casting. The inner cavity in the mounting seat 2 matches the chambers 11 on both sides of the valve seat 1 to ensure the rationality of the entire pressure regulating valve. The pressure gauge 4 detects the oil pressure sent into the pressure measuring pipe 23 to meet the user's need to adjust the balancing valve 3 according to the oil pressure on the pressure gauge 4. When the user needs to adjust the balancing valve 3, he only needs to introduce pressurized gas through the adjusting air nozzle 31 to make the balance between the two adjusting air nozzles 31 unbalanced. When the pressurized gas is introduced along the upper adjusting air nozzle 31, the diaphragm moves downward, causing the valve stem to move downward, causing the valve core 25 to drop and block the through hole, thereby achieving the control of the opening and closing of the regulating inner cavity, thereby meeting the need to control the oil pressure in the compressor cylinder.

[0024] Working principle: For this type of diaphragm compressor cylinder pressure regulating valve structure, it is first connected to the compressor cylinder through the connecting pipe 62. At this time, when the user needs to adjust the balancing valve 3, he only needs to introduce the pressurized gas through the adjusting air nozzle 31 to make the balance between the two adjusting air nozzles 31 unbalanced. When the pressurized gas is introduced along the upper adjusting air nozzle 31, the diaphragm moves downward, causing the valve stem to move downward, causing the valve core 25 to drop and block the through hole, so as to control the opening and closing of the regulating inner cavity, thereby meeting the demand for controlling the oil pressure in the compressor cylinder. Then the pressure gauge 4 detects the oil pressure sent in by the pressure measuring pipe 23. The user adjusts the balancing valve 3 appropriately according to the oil pressure on the pressure gauge 4. Finally, when the valve seat 1 and the mounting seat 2 are damaged, it is only necessary to unscrew the fastening screw plate 7 from the balancing valve 3, unscrew the fastening bolts around the valve seat 1, separate the valve seat 1 and the mounting seat 2, and inspect and check the components of the mounting seat 2.

[0025] 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 diaphragm compressor oil cylinder pressure regulating valve structure, comprising a valve seat (1), a mounting seat (2) and a balancing valve (3), characterized in that: A mounting seat (2) is embedded in the middle of the valve seat (1), and a balancing valve (3) is fixed on the top of the upper end of the mounting seat (2); one end of the valve seat (1) is connected to a discharge pipe (5) for discharging hydraulic oil, and the end of the valve seat (1) away from the discharge pipe (5) is connected to an access pipe (6) for receiving hydraulic oil; a plurality of screw holes (21) are provided around the mounting seat (2), and a partition (22) is fixed on one side of the mounting seat (2); a pressure measuring pipe (23) is fixed on the side of the partition (22) away from the inner cavity of the mounting seat (2), and a through hole is provided on the partition (22) along the center of the pressure measuring pipe (23); a limit seat (24) is integrally provided in the middle of the mounting seat (2), and a valve core (25) is movably connected to the inner wall of the limit seat (24); a through hole for the flow of hydraulic oil is provided in the middle of the limit seat (24), and the valve core (25) is controlled by the balancing valve (3).

2. The diaphragm compressor oil cylinder pressure regulating valve structure according to claim 1 is characterized in that: A chamber (11) is provided in the middle of the valve seat (1), and a connection nozzle (13) is connected to the valve seat (1) along one side of the chamber (11).

3. The diaphragm compressor oil cylinder pressure regulating valve structure according to claim 2 is characterized in that: The valve seat (1) is embedded with mutually matching sealing rings (12) along the periphery of the chamber (11).

4. The diaphragm compressor oil cylinder pressure regulating valve structure according to claim 3 is characterized in that: A pressure gauge (4) is fixed on the inner wall of the connecting nozzle (13) for detecting the oil pressure of the pressure measuring pipeline (23).

5. The diaphragm compressor oil cylinder pressure regulating valve structure according to claim 1, characterized in that: The other end of the access pipe (6) is connected to a connecting pipe (62), and a connecting thread (61) is provided at the connection between the connecting pipe (62) and the access pipe (6), and the access pipe (6) is threadedly connected to the connecting pipe (62) via the connecting thread (61).

6. The diaphragm compressor oil cylinder pressure regulating valve structure according to claim 1, characterized in that: One side of the balancing valve (3) is respectively connected to a pair of regulating air nozzles (31), and the outer wall of the lower end of the balancing valve (3) is provided with external threads (32) around it.

7. The diaphragm compressor oil cylinder pressure regulating valve structure according to claim 6, characterized in that: The balancing valve (3) is threadedly connected with a fastening screw plate (7) via an external thread (32), and the fastening screw plate (7) covers the upper part of the connection between the valve seat (1) and the mounting seat (2).

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