Filtering pressure regulating valve

Abstract

The utility model relates to the technical field of pneumatic elements, and discloses a filtering pressure regulating valve which comprises an upper-layer valve pipe and a lower-layer valve pipe, an inlet is fixedly installed on the outer wall of one side of the upper-layer valve pipe, an outlet is fixedly installed on the outer wall, away from the inlet, of the upper-layer valve pipe, and an annular groove is formed in the lower portion of the upper-layer valve pipe. The top end of the lower-layer valve pipe is located in the upper-layer valve pipe annular groove, a gasket assembly is arranged on the inner wall, corresponding to the upper-layer valve pipe annular groove, of the top end of the lower-layer valve pipe, fastening devices are arranged at the two side ends of the adjacent outer walls of the upper-layer valve pipe and the lower-layer valve pipe correspondingly, and a plurality of square grooves are formed in the inner wall of the lower-layer valve pipe. According to the utility model, the filtering assembly is used for filtering, the annular gasket on the filtering assembly and the inner side gasket, the top layer gasket and the outer side gasket in the gasket assembly are used for sealing to prevent air leakage, and then the threaded connection relation between the fixing bolt in the fastening device and the fixing pipe and the connecting pipe is used for fixing.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic components, in particular to a filter pressure regulating valve. Background Art

[0002] A pressure regulating valve is a pneumatic component that regulates the air pressure for stable output. When the air pressure at the input end fluctuates, the position of the diaphragm set in the valve body can be automatically adjusted, and then the compressed air is throttled to ensure the stability of the air pressure at the output end. The filter pressure regulating valve is based on the pressure regulating valve and adds a filter component to ensure the stability of the output air pressure while filtering the air source, such as removing impurities such as oil, water, and dust in the compressed air, which can improve the service life of the pneumatic components and the precision of regulating air pressure. The filter pressure regulating valves now appearing on the market are all integrated pressure regulating valves for sealing. The pressure regulating valves often need to take into account the filtering effect when working, but the filtering effect will definitely decrease after long-term use. However, when disassembling and assembling the filter module of the integrated pressure regulating valve, the pressure regulating valve needs to be disassembled, and then the entire device is disassembled and the filter module is replaced. This method destroys the original structure and greatly increases the time cost. For this reason, we propose a filter pressure regulating valve. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the utility model provides a filter pressure regulating valve to solve the above-mentioned problems.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filter pressure regulating valve, comprising an upper valve tube and a lower valve tube, an inlet is fixedly installed on the outer wall of one side of the upper valve tube, and an outlet is fixedly installed on the outer wall of the upper valve tube away from the inlet, an annular groove is opened at the bottom of the upper valve tube, and the top end of the lower valve tube is located inside the annular groove of the upper valve tube, and a gasket assembly is arranged on the inner wall of the annular groove of the upper valve tube corresponding to the top end of the lower valve tube, fastening devices are arranged on both side ends of the adjacent outer walls of the upper valve tube and the lower valve tube, a plurality of square grooves are opened on the inner wall of the lower valve tube, and a filter assembly is arranged at the position of the lower valve tube corresponding to the plurality of square grooves.

[0007] Preferably, the gasket assembly includes an inner gasket, a top gasket, and an outer gasket, the inner gasket is fitly mounted on the top inner wall of the lower valve tube, and the top gasket is fixedly mounted on the top position of the inner gasket, the top gasket is fitly mounted on the top position of the lower valve tube, and the outer gasket is fixedly mounted on the end of the top gasket facing away from the inner gasket, and the outer gasket is fitly mounted on the top outer wall of the lower valve tube.

[0008] Preferably, the inner gasket, the top gasket and the outer gasket are all correspondingly fitted together with the inner wall of the annular groove in the upper valve tube.

[0009] Preferably, the fastening device includes a connecting pipe, a fixing bolt and two connecting pipes, the two fixing pipes are respectively fixedly installed on the outer walls of the corresponding side of the upper valve pipe and the lower valve pipe, and a connecting pipe is installed between the two fixing pipes, threaded holes are provided at the fitting positions of the two fixing pipes and the connecting pipes, and fixing bolts are threadedly connected to the threaded holes of the two fixing pipes which are away from each other.

[0010] Preferably, the fixing bolt is threadedly connected to the fixing pipe and the threaded hole of the corresponding connecting pipe.

[0011] Preferably, the filter assembly includes a square block, an annular gasket, and a filter tube. The square block is fixedly installed on the bottom outer wall of the filter tube at positions corresponding to the multiple square grooves on the lower valve tube. The end of the square block facing away from the filter tube is fitted inside the multiple square grooves. The annular gasket is fixedly installed on the top outer wall of the filter tube.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a filter pressure regulating valve, which has the following beneficial effects:

[0014] 1. When we need to install the filter pressure regulating valve, we first need to align the multiple square blocks in the filter assembly with the multiple square grooves inside the lower valve tube, so that the square blocks and the square grooves are fitted together, and then we fit the inner gasket in the gasket assembly on the top inner wall of the lower valve tube, and then fit the top gasket in the gasket assembly on the top position of the lower valve tube, and then we fit the outer gasket in the gasket assembly on the top outer wall of the lower valve tube. After the installation, we align the lower valve tube and the gasket assembly on the lower valve tube with the annular groove in the upper valve tube, and let the inner gasket, top gasket and outer gasket in the gasket assembly fit and connect with the inner wall of the annular groove in the upper valve tube. At this time, the annular gasket in the filter assembly will also be connected with the valve of the pressure regulating valve. When the fixing bolts are threaded together, the top end of the lower valve tube and the gasket assembly and the annular groove in the upper valve tube will be squeezed by force. When the squeezing reaches a certain degree, it can be highly sealed. At this time, our pressure regulating valve is installed. When we need to disassemble it, we only need to rotate the fixing bolts in the opposite direction to separate the fixing bolts from the fixing tube and the connecting tube. Then we pull the lower valve tube downward out of the annular groove in the upper valve tube to separate the upper valve tube and the lower valve tube. At this time, we only need to take out the filter assembly for cleaning or replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of a cross-sectional structure of one side of the utility model;

[0017] Figure 3 This is a schematic diagram of the top view of the lower valve tube structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the gasket assembly of the utility model;

[0019] Figure 5 This is the filter component structure of the utility model.

[0020] In the figure: 1. upper valve tube; 2. lower valve tube; 3. inlet; 4. fastening device; 5. filter assembly; 6. gasket assembly; 7. square groove; 8. fixing pipe; 9. connecting pipe; 10. fixing bolt; 11. inner gasket; 12. top gasket; 13. outer gasket; 14. square block; 15. ring gasket; 16. filter tube. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-5 A filter pressure regulating valve comprises an upper valve tube 1 and a lower valve tube 2, an inlet 3 is fixedly installed on one side outer wall of the upper valve tube 1, and an outlet is fixedly installed on the outer wall of the upper valve tube 1 away from the inlet 3, an annular groove is opened at the bottom of the upper valve tube 1, and the top end of the lower valve tube 2 is located inside the annular groove of the upper valve tube 1, and a gasket assembly 6 is arranged on the inner wall of the annular groove of the upper valve tube 1 corresponding to the top end of the lower valve tube 2, fastening devices 4 are arranged on both side ends of the adjacent outer walls of the upper valve tube 1 and the lower valve tube 2, a plurality of square grooves 7 are opened on the inner wall of the lower valve tube 2, and a filter assembly 5 is arranged at the position of the lower valve tube 2 corresponding to the plurality of square grooves 7.

[0023] Further, the gasket assembly 6 includes an inner gasket 11, a top gasket 12, and an outer gasket 13. The inner gasket 11 is fitted on the top inner wall of the lower valve tube 2, and the top gasket 12 is fixedly installed at the top position of the inner gasket 11. The top gasket 12 is fitted on the top position of the lower valve tube 2, and the outer gasket 13 is fixedly installed at one end of the top gasket 12 away from the inner gasket 11. The outer gasket 13 is fitted on the top outer wall of the lower valve tube 2. Working principle: we put the inner gasket 11 in the gasket assembly 6 1 is fitted on the top inner wall of the lower valve tube 2, and then the top gasket 12 in the gasket assembly 6 is fitted on the top position of the lower valve tube 2, and then the outer gasket 13 in the gasket assembly 6 is fitted on the top outer wall of the lower valve tube 2. After the installation, we align the lower valve tube 2 and the gasket assembly 6 on the lower valve tube 2 with the annular groove in the upper valve tube 1, and let the inner gasket 11, the top gasket 12, and the outer gasket 13 in the gasket assembly 6 fit and connect with the inner wall of the annular groove in the upper valve tube 1.

[0024] Furthermore, the inner gasket 11, the top gasket 12 and the outer gasket 13 are all fitted together with the inner wall of the annular groove in the upper valve tube 1. Advantages: They are tightly fitted together, which is helpful for the sealing of the pressure reducing valve.

[0025] Furthermore, the fastening device 4 includes a connecting pipe 9, a fixing bolt 10 and two connecting pipes 9. The two fixing pipes 8 are respectively fixedly installed on the outer walls of the corresponding sides of the upper valve pipe 1 and the lower valve pipe 2, and the connecting pipe 9 is fitted between the two fixing pipes 8. The fitting positions of the two fixing pipes 8 and the connecting pipe 9 are provided with threaded holes, and the threaded holes of the two fixing pipes 8 that are away from each other are threadedly connected with fixing bolts 10. Working principle: we place the connecting pipe 9 between the corresponding two fixing pipes 8, and then make the threaded holes of the connecting pipe 9 and the fixing pipe 8 correspond. At this time, we thread the fixing pipes 8 and the connecting pipes 9 at both ends together through the fixing bolts 10. When the fixing bolts 10 are threadedly rotated, the top end of the lower valve pipe 2 and the gasket assembly 6 and the annular groove in the upper valve pipe 1 will be squeezed by force. When the squeezing reaches a certain degree, it can be highly sealed.

[0026] Furthermore, the fixing bolt 10 is threadedly connected to the fixing pipe 8 and the threaded hole of the corresponding connecting pipe 9 .

[0027] Furthermore, the filter assembly 5 includes a square block 14, an annular gasket 15, and a filter tube 16. The square block 14 is fixedly installed on the bottom outer wall of the filter tube 16 at the position corresponding to the multiple square grooves 7 on the lower valve tube 2. The end of the square block 14 facing away from the filter tube 16 is fitted inside the multiple square grooves 7. The annular gasket 15 is fixedly installed on the top outer wall of the filter tube 16. The advantage is that when the annular gasket 15 is in contact with the valve body, the greater the force, the better the sealing effect.

[0028] Working principle: When we need to install the filter pressure regulating valve, we first need to align the multiple square blocks 14 in the filter assembly 5 with the multiple square grooves 7 inside the lower valve tube 2, so that the square blocks 14 and the square grooves 7 are installed together, and then we fit the inner gasket 11 in the gasket assembly 6 on the top inner wall of the lower valve tube 2, and then fit the top gasket 12 in the gasket assembly 6 on the top position of the lower valve tube 2, and then we fit the outer gasket 13 in the gasket assembly 6 on the lower valve tube 2, after installation, we align the lower valve tube 2 and the gasket assembly 6 on the lower valve tube 2 with the annular groove in the upper valve tube 1, so that the inner gasket 11, the top gasket 12, and the outer gasket 13 in the gasket assembly 6 are fitted and connected with the inner wall of the annular groove in the upper valve tube 1. At this time, the annular gasket 15 in the filter assembly 5 will also fit with the valve body of the pressure regulating valve. At this time, we place the connecting pipe 9 between the corresponding two fixed pipes 8, and then make the threaded holes of the connecting pipe 9 and the fixed pipe 8 correspond. At this time, we use the fixing bolts 10 to thread the fixing pipes 8 and the connecting pipes 9 at both ends together. When the fixing bolts 10 are threadedly rotated, the top end of the lower valve pipe 2 and the gasket assembly 6 and the annular groove in the upper valve pipe 1 will be squeezed by force. When squeezed to a certain extent, it can be highly sealed. At this time, our pressure regulating valve is installed. When we need to disassemble it, we only need to rotate the fixing bolts 10 in the opposite direction to let the fixing bolts 10 break away from the fixing pipe 8 and the connecting pipe 9, and then we pull the lower valve pipe 2 downward out of the annular groove in the upper valve pipe 1 to separate the upper valve pipe 1 and the lower valve pipe 2. At this time, we only need to take out the filter assembly 5 for cleaning or replacement. The utility model adopts the filter assembly 5 for filtering, and then uses the annular gasket 15 on the filter assembly 5 and the inner gasket 11, the top gasket 12, and the outer gasket 13 in the gasket assembly 6 to seal and prevent air leakage, and then uses the fixing bolts 10 in the fastening device 4 and the threaded connection relationship between the fixing pipe 8 and the connecting pipe 9 for fixing.

[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 filter pressure regulating valve, comprising an upper valve tube (1) and a lower valve tube (2), characterized in that: An inlet (3) is fixedly installed on one side outer wall of the upper valve tube (1), and an outlet is fixedly installed on the outer wall of the upper valve tube (1) away from the inlet (3), an annular groove is opened at the bottom of the upper valve tube (1), and the top end of the lower valve tube (2) is located inside the annular groove of the upper valve tube (1), and a gasket assembly (6) is arranged on the inner wall of the annular groove of the upper valve tube (1) corresponding to the top end of the lower valve tube (2), and fastening devices (4) are arranged on both side ends of the adjacent outer walls of the upper valve tube (1) and the lower valve tube (2), a plurality of square grooves (7) are opened on the inner wall of the lower valve tube (2), and a filter assembly (5) is arranged at the position of the lower valve tube (2) corresponding to the plurality of square grooves (7).

2. A filter pressure regulating valve according to claim 1, characterized in that: The gasket assembly (6) comprises an inner gasket (11), a top gasket (12), and an outer gasket (13); the inner gasket (11) is fitted on the top inner wall of the lower valve tube (2), and the top gasket (12) is fixedly installed at the top position of the inner gasket (11); the top gasket (12) is fitted on the top position of the lower valve tube (2), and the outer gasket (13) is fixedly installed at the end of the top gasket (12) facing away from the inner gasket (11); the outer gasket (13) is fitted on the top outer wall of the lower valve tube (2).

3. A filter pressure regulating valve according to claim 2, characterized in that: The inner gasket (11), the top gasket (12) and the outer gasket (13) are all correspondingly fitted together with the inner wall of the annular groove in the upper valve tube (1).

4. A filter pressure regulating valve according to claim 1, characterized in that: The fastening device (4) comprises a connecting pipe (9), a fixing bolt (10) and two connecting pipes (9), wherein the two fixing pipes (8) are respectively fixedly mounted on the outer walls of the corresponding sides of the upper valve pipe (1) and the lower valve pipe (2), and the connecting pipe (9) is fitted between the two fixing pipes (8), threaded holes are provided at the fitting positions of the two fixing pipes (8) and the connecting pipe (9), and fixing bolts (10) are threadedly connected to the threaded holes of the two fixing pipes (8) which are away from each other.

5. A filter pressure regulating valve according to claim 4, characterized in that: The fixing bolt (10) is threadedly connected to the fixing pipe (8) and the threaded hole of the corresponding connecting pipe (9).

6. A filter pressure regulating valve according to claim 1, characterized in that: The filter assembly (5) comprises a square block (14), an annular gasket (15), and a filter tube (16); the square block (14) is fixedly mounted on the bottom outer wall of the filter tube (16) at positions corresponding to the multiple square grooves (7) on the lower valve tube (2); one end of the square block (14) facing away from the filter tube (16) is fitted inside the multiple square grooves (7); and the annular gasket (15) is fixedly mounted on the top outer wall of the filter tube (16).

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