Pressure reducing valve with quick-mount pressure measuring instrument

Abstract

This utility model provides a pressure reducing valve with a quick-install pressure measuring instrument, including a pressure reducing valve body, a locking knob, and a fixed outer frame. The pressure measuring part at the front end of the pressure reducing valve body is embedded with an integrated end face, and an end face block is integrally fixed at the front end of the integrated end face. Locking threaded holes are opened on the upper and lower ends of the left and right sides of the end face block. An annular sealing groove is opened at the front end of the end face block, and a main sealing ring is embedded inside the annular sealing groove. A port tube is installed through the main sealing ring. This design solves the problems of inconvenient installation, risk of torque damage, and difficulty in disassembly and maintenance of existing threaded connection pressure reducing valves with instruments. This utility model adopts an integrated instrument interface structure of "axial quick-install self-sealing and radial locking", completely abandoning the traditional rotary threaded connection method. It uses axial magnetic positioning insertion and radial knob locking, and uses the sealing ring integrated on the valve body to achieve reliable sealing for plug-and-play use.

Description

Technical Field

[0001] This utility model relates to a pressure reducing valve with a quick-connect pressure measuring instrument, belonging to the technical field of pressure reducing valves. Background Technology

[0002] Pressure reducing valves are indispensable control components in fluid pipeline systems. Their function is to reduce unstable inlet pressure and stabilize it at a precise outlet pressure value to meet the operating requirements of actuators. To monitor and regulate outlet pressure, most pressure reducing valves integrate a pressure gauge or pressure sensor. They are broadly classified into threaded connection type with gauge, flange connection type with gauge, and compression fitting type with gauge. For threaded connection type pressure reducing valves, installation requires wrapping Teflon tape or applying sealant to the threads, and then using a wrench to screw the gauge into the valve body.

[0003] However, its installation is extremely inconvenient, requiring the use of a suitable wrench, and is very laborious when operating space is limited. The tightness of the PTFE tape depends on experience, and improper winding can easily lead to leakage or debris clogging the pressure measurement channel. When tightening with a wrench, excessive torque may damage the delicate Bourdon tube or sensor core inside the instrument, causing the instrument to become inaccurate or be scrapped, posing a risk of torque damage. In addition, when replacing or calibrating the instrument, the operation needs to be reversed, which is also inconvenient and can easily damage the original sealing material, making disassembly and maintenance difficult. There is an urgent need for a pressure reducing valve with a quick-release pressure measuring instrument to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a pressure reducing valve with a quick-installation pressure measuring instrument to solve the problems mentioned in the background art. This utility model has the advantages of quick instrument installation, reliable sealing, tool-free operation, and no torque damage to the instrument.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a pressure reducing valve with a quick-release pressure measuring instrument, comprising a pressure reducing valve body, a locking knob, and a fixed outer frame. An integral end face is embedded in the pressure measuring part at the front end of the pressure reducing valve body, and an end face block is integrally fixed to the front end of the integral end face. Locking threaded holes are provided on the upper and lower ends of the left and right sides of the end face block. An annular sealing groove is provided at the front end of the end face block, and a main sealing ring is embedded inside the annular sealing groove. A port tube is passed through the main sealing ring, and a strong magnetic ring is fixed to the front end of the port tube. The front end of the fixed outer frame... A pressure gauge is installed. The fixed outer frame is fitted over the end face block. A rubber inner frame is fixed to the inner wall of the fixed outer frame. Multiple locking knobs are provided. Each locking knob has a spring cavity on its inner side. A threaded locking pin is fixed in each spring cavity. A return spring is fitted over each threaded locking pin. An insertion inner tube is fixed to the rear end of the pressure gauge. A guide sleeve is fixed inside the fixed outer frame. The guide sleeve is fitted over the insertion inner tube. A second strong magnet ring is fixed to the front end of the guide sleeve. A recessed annular groove is formed at the rear end of the guide sleeve.

[0006] Furthermore, the plurality of threaded locking pins pass through the left and right sides of the fixed outer frame and the rubber inner frame, respectively.

[0007] Furthermore, the threaded ends of the plurality of threaded locking pins are respectively screwed into the plurality of locking threaded holes.

[0008] Furthermore, the locking knobs are respectively attached to the left and right sides of the fixed outer frame, and the multiple return springs are abutted against the left and right sides of the fixed outer frame.

[0009] Furthermore, the inner tube has a chamfered edge, and the inner tube is damped and inserted into the port tube.

[0010] Furthermore, the inner rubber frame is fitted with the external damping of the end face block.

[0011] Furthermore, the guide sleeve is inserted into the annular sealing groove, and the front end of the main sealing ring is engaged in the recessed annular groove.

[0012] Furthermore, the second strong magnet ring is fixed to the front end of the strong magnet ring by magnetic attraction.

[0013] The beneficial effects of this utility model are as follows: This utility model provides a pressure reducing valve with a quick-install pressure measuring instrument. Because it incorporates an end face block, main sealing ring, port tube, strong magnetic ring, fixed outer frame, rubber inner frame, locking knob, threaded locking pin, return spring, guide sleeve, second strong magnetic ring, and insertion inner tube, its structure is reasonable. It adopts an integrated instrument interface structure of "axial quick-install self-sealing and radial locking," completely eliminating the traditional rotary threaded connection method and preventing leakage problems caused by human factors such as improper wrapping of PTFE tape. Axial magnetic positioning and insertion, combined with radial knob locking, and the integrated sealing ring on the valve body achieve reliable static sealing for plug-and-play use. Installation and disassembly time is reduced from minutes to seconds, significantly reducing maintenance time and labor costs. No rotational torque acts on the instrument body throughout the process, fundamentally preventing instrument damage caused by improper installation, ensuring long-term accuracy of pressure detection, and demonstrating strong practicality. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the structure of a pressure reducing valve with a quick-release pressure measuring instrument according to the present invention;

[0016] Figure 2 This is a schematic diagram of the end face block structure of a pressure reducing valve with a quick-release pressure measuring instrument according to this utility model.

[0017] Figure 3 This is a schematic diagram of the internal structure of the fixed outer frame of a pressure reducing valve with a quick-release pressure measuring instrument according to this utility model.

[0018] Figure 4 This is a schematic diagram of the reset spring position structure of a pressure reducing valve with a quick-release pressure measuring instrument according to this utility model.

[0019] In the diagram: 1-Pressure reducing valve body, 2-Integrated end face, 3-End face block, 4-Locking threaded hole, 5-Annular sealing groove, 6-Main sealing ring, 7-Port tube, 8-Strong magnet ring, 9-Fixed outer frame, 10-Pressure gauge, 11-Rubber inner frame, 12-Locking knob, 13-Threaded locking pin, 14-Spring cavity, 15-Reset spring, 16-Guide sleeve, 17-Second strong magnet ring, 18-Recessed annular groove, 19-Insertion inner tube, 20-Chamfer. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please see Figures 1-4 This utility model provides a technical solution: a pressure reducing valve with a quick-release pressure measuring instrument, including a pressure reducing valve body 1, a locking knob 12, and a fixed outer frame 9. An integral end face 2 is embedded in the pressure measuring part at the front end of the pressure reducing valve body 1, and an end face block 3 is integrally fixed to the front end of the integral end face 2. Locking threaded holes 4 are provided on the upper and lower ends of the left and right sides of the end face block 3. An annular sealing groove 5 is provided at the front end of the end face block 3, and a main sealing ring 6 is embedded inside the annular sealing groove 5. A port tube 7 is passed through the main sealing ring 6, and a strong magnetic ring 8 is fixed to the front end of the port tube 7. A pressure gauge 10 is installed at the front end of the fixed outer frame 9, and the fixed outer frame 9 is sleeved outside the end face block 3. A rubber... The inner frame 11 has multiple locking knobs 12, each with a spring cavity 14 inside. Each spring cavity 14 has a threaded locking pin 13 fixed inside, and each threaded locking pin 13 has a return spring 15 sleeved on the outside. The rear end of the pressure gauge 10 is fixed with an inner tube 19, and the outer frame 9 is fixed with a guide sleeve 16. The guide sleeve 16 is fitted outside the inner tube 19 with a gap. The front end of the guide sleeve 16 is fixed with a second strong magnet ring 17, and the rear end of the guide sleeve 16 has a recessed annular groove 18. This design solves the problems of inconvenient installation, risk of torque damage, and difficulty in disassembly and maintenance of existing threaded connection pressure reducing valves with gauges.

[0022] As the first embodiment of this utility model: multiple threaded locking pins 13 pass through the left and right sides of the fixed outer frame 9 and the rubber inner frame 11 respectively, and the threaded ends of the multiple threaded locking pins 13 are respectively screwed into multiple locking threaded holes 4. Multiple locking knobs 12 are respectively close to the left and right sides of the fixed outer frame 9, and multiple return springs 15 are all abutting against the left and right sides of the fixed outer frame 9. By adding multiple threaded locking pins 13 that pass through the left and right sides of the fixed outer frame 9 and the rubber inner frame 11 respectively, and by using return springs 15 to achieve axial elastic pre-tightening, the front end of the threaded locking pin 13 maintains a certain gap with the locking threaded hole 4 in the unlocked state, which facilitates quick alignment and installation. By rotating the locking knob 12, the threaded locking pin 13 is pushed forward into the locking threaded hole 4, realizing radial mechanical locking between the fixed outer frame 9 and the end face block 3. When the locking knob 12 is released, the return spring 15 can automatically push the threaded locking pin 13 backward away from the locking threaded hole 4, realizing quick unlocking.

[0023] The inner tube 19 is chamfered at the edge. The inner tube 19 is inserted into the port tube 7 with damping. The chamfer 20 guides the insertion, reducing the difficulty of aligning the inner tube 19 and improving the installation efficiency.

[0024] The rubber inner frame 11 is attached to the external damping of the end face block 3. By attaching the rubber inner frame 11 to the external damping of the end face block 3, the fit between the fixed outer frame 9 and the end face block 3 is enhanced, preventing shaking and improving the overall structural stability.

[0025] The guide sleeve 16 is inserted into the annular sealing groove 5, and the front end of the main sealing ring 6 is engaged in the recessed annular groove 18. By adding the guide sleeve 16, which is inserted into the annular sealing groove 5, and the front end of the main sealing ring 6 is engaged in the recessed annular groove 18, a bidirectional sealing structure is formed, ensuring excellent sealing performance even under high pressure.

[0026] The second strong magnetic ring 17 and the front end of the strong magnetic ring 8 are magnetically attracted and fixed together. By adding the second strong magnetic ring 17 and the front end of the strong magnetic ring 8, the initial axial positioning and adsorption between the pressure gauge 10 and the pressure reducing valve body 1 are achieved, which facilitates the subsequent locking operation.

[0027] As a second embodiment of this utility model: During installation, first align the inner tube 19 at the rear end of the pressure gauge 10 with the port tube 7. Utilizing the magnetic attraction between the second strong magnetic ring 17 and the strong magnetic ring 8, the guide sleeve 16 automatically aligns and inserts into the annular sealing groove 5. Simultaneously, the main sealing ring 6 engages with the recessed annular groove 18, forming an effective seal. Subsequently, the user only needs to manually rotate the locking knobs 12 on both sides to push the threaded locking pin 13 into the locking threaded hole 4 to complete the radial mechanical locking. The entire process requires no tools, is simple and quick to operate, and has no rotational torque acting on the pressure gauge 10 body, completely avoiding damage to the instrument due to improper installation. During disassembly, rotate the locking knob 12 in the opposite direction. Under the action of the return spring 15, the threaded locking pin 13 automatically exits the locking threaded hole 4, allowing the pressure gauge 10 to be easily removed for daily maintenance or replacement.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pressure reducing valve with a quick-release pressure measuring instrument, comprising a pressure reducing valve body (1), a locking knob (12), and a fixed outer frame (9), characterized in that: The pressure measuring part at the front end of the pressure reducing valve body (1) is embedded with an integral end face (2), and an end face block (3) is integrally fixed at the front end of the integral end face (2). Locking thread holes (4) are provided on the upper and lower ends of the left and right sides of the end face block (3). An annular sealing groove (5) is provided at the front end of the end face block (3). A main sealing ring (6) is embedded inside the annular sealing groove (5). A port tube (7) is provided through the main sealing ring (6). A strong magnetic ring (8) is fixed at the front end of the port tube (7). A pressure gauge (10) is installed at the front end of the fixed outer frame (9). The fixed outer frame (9) is sleeved on the outside of the end face block (3). A rubber inner wall is fixed on the inner side wall of the fixed outer frame (9). The frame (11) has multiple locking knobs (12), each of which has a spring cavity (14) inside. Each of the multiple spring cavities (14) has a threaded locking pin (13) fixed inside. Each of the multiple threaded locking pins (13) has a reset spring (15) sleeved outside. The pressure gauge (10) has an insertion inner tube (19) fixed at its rear end. The fixed outer frame (9) has a guide sleeve (16) fixed inside. The guide sleeve (16) is gapped outside the insertion inner tube (19). The guide sleeve (16) has a second strong magnet ring (17) fixed at its front end. The guide sleeve (16) has a recessed annular groove (18) at its rear end.

2. The pressure reducing valve with a quick-connect pressure measuring instrument according to claim 1, characterized in that: Multiple threaded locking pins (13) pass through the left and right sides of the fixed outer frame (9) and the rubber inner frame (11), respectively.

3. A pressure reducing valve with a quick-connect pressure measuring instrument according to claim 2, characterized in that: The threaded ends of the multiple threaded locking pins (13) are respectively screwed into the multiple locking threaded holes (4).

4. A pressure reducing valve with a quick-connect pressure measuring instrument according to claim 1, characterized in that: Multiple locking knobs (12) are respectively attached to the left and right sides of the fixed outer frame (9), and multiple reset springs (15) are abutted against the left and right sides of the fixed outer frame (9).

5. A pressure reducing valve with a quick-connect pressure measuring instrument according to claim 1, characterized in that: The inner insertion tube (19) has a chamfer (20) on its edge, and the inner insertion tube (19) is damped and inserted into the port tube (7).

6. A pressure reducing valve with a quick-connect pressure measuring instrument according to claim 1, characterized in that: The rubber inner frame (11) is externally damped and fitted to the end face block (3).

7. A pressure reducing valve with a quick-connect pressure measuring instrument according to claim 1, characterized in that: The guide sleeve (16) is inserted into the annular sealing groove (5), and the front end of the main sealing ring (6) is engaged in the recessed annular groove (18).

8. A pressure reducing valve with a quick-connect pressure measuring instrument according to claim 1, characterized in that: The second strong magnet ring (17) and the front end of the strong magnet ring (8) are fixed by magnetic attraction.

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