Pressure regulating device

Abstract

The present application provides a pressure adjusting device, which comprises an adjuster having a flow path and a pressure regulating chamber in communication with each other, the adjuster having an air inlet end and an air outlet end protruding to two sides, and the air inlet end being combined with a connector; a gas control group arranged in the pressure regulating chamber and comprising a valve sleeve, a valve rod and an upper spring, the upper spring pushing the valve rod to move relative to the valve sleeve in the valve sleeve to control the flow or block of gas from the air inlet to the air outlet; and a pressure gauge located above the adjuster and having a lateral combination part, the pressure gauge being arranged between the lateral combination part and the connector with an operating space therebetween, so as to avoid the interference and inconvenience of the installation operation of the pressure gauge and the connector.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas equipment, in particular to a pressure adjusting device provided for gas pipeline installation and use, and combined with a pressure gauge. BACKGROUND

[0002] Generally, gas is usually stored in a high-pressure manner, and an adjuster is usually installed to adjust the output of the gas to maintain a certain pressure, so that the gas can be smoothly supplied to the use end.

[0003] The structure of the adjuster generally includes a body, a joint, and a connecting pipe and a pressure gauge between the body and the joint. The connecting pipe is connected to the body and the joint, and the pressure gauge is connected to the connecting pipe between the body and the joint, so that the head of the pressure gauge is close to the position of the joint due to the outward extension.

[0004] Therefore, the structure of the adjuster will increase the space occupation due to the outward extension of the pressure gauge between the body and the joint, and will increase the interference and inconvenience during installation and use. In particular, when the joint is connected to the gas pipeline and the knob of the joint is rotated, the pressure gauge is easily interfered and limited, causing inconvenience in use. SUMMARY

[0005] The main purpose of the present application is to provide an adjuster with a gas inlet end combined with a joint on one side, and a pressure gauge combined with the adjuster, so that the pressure gauge has an operating space with the joint, and avoids interference and inconvenience during installation and operation of the pressure gauge and the joint.

[0006] In order to achieve the above-mentioned purposes and effects, the present application provides a pressure adjusting device, comprising:

[0007] An adjuster having a flow path and a pressure regulating chamber in communication with each other, the adjuster having a gas inlet end and a gas outlet end protruding to both sides, and the gas inlet end combined with a joint;

[0008] A gas control assembly combined in the pressure regulating chamber and comprising a valve sleeve, a valve rod and an upper spring, the upper spring pushing the valve rod to move relative to the valve sleeve in the valve sleeve to control the flow or block of gas from the gas inlet to the gas outlet;

[0009] A pressure gauge located above the adjuster and having a lateral combination part, the pressure gauge combined with the pressure gauge and the joint through the lateral combination part, the lateral combination part having a pressure guiding hole in communication with the flow path to sense the pressure of the flow path.

[0010] Optionally, the pressure gauge has a dial, and the lateral joint projects from one side of the dial, and the pressure guide hole is located on the opposite side of the dial and penetrates the lateral joint and has a large-diameter end slot, and a screw is threaded into the pressure guide hole and screwed into the flow channel and fixes the pressure gauge, so that the head of the screw is embedded in the large-diameter end slot, and an O-ring is fitted between the head and the large-diameter end slot to prevent leakage.

[0011] Optionally, the flow path includes a flow channel, an air inlet located in the air inlet end, and an air outlet located in the air outlet end, one end of the flow channel communicates with the air inlet and the other end penetrates the upper surface of the regulator, the flow channel has an internal threaded section provided on the inner wall near the penetrating end, and the internal threaded section has a plurality of side guide slots arranged in a ring, the internal threaded section provides the lower end of the screw for fixing the pressure gauge, the pressure guide hole has a larger diameter than the screw, and there is a gap between the pressure guide hole and the screw and the plurality of side guide slots are communicated.

[0012] Optionally, the regulator has a gas control part located in the pressure regulating chamber between the air inlet and the air outlet, the gas control part has a gas chamber for fitting the gas control part, the flow path includes a second flow channel located between the air inlet and the top of the regulator, the second flow channel communicates with the flow channel and the gas chamber, and the gas chamber communicates with the pressure regulating chamber.

[0013] Optionally, the valve sleeve has a lower end portion with a valve hole larger than the valve rod and an inner hole rim protruding from the valve hole, the valve rod has a head end and a leak-proof ring located in the valve sleeve, the leak-proof ring is fitted to the valve rod and located between the head end and the inner hole rim, and the other end of the valve rod extends out of the valve hole.

[0014] Optionally, the valve sleeve has two side tabs protruding outward from the lower end portion, and an outer guide plate connected to the outer ends of the two side tabs, the outer guide plate is arranged at a distance from the lower end portion and has an outer guide hole opposite the valve hole, and the outer guide plate and the lower end portion form an air outlet space communicating with the valve hole, and the outer guide hole is fitted with the valve rod extending out of the valve hole.

[0015] Optionally, the regulator further covers the downward opening of the pressure regulating chamber with a diaphragm cover, and the regulator downwardly connects a base with a plurality of fixing screws arranged in a ring, the base has a limiting slot, an upper flange and a plurality of connecting holes, the limiting slot limits the fitting of a pressure regulating part, the upper flange is larger than the limiting slot and abuts against the bottom side of the diaphragm periphery, and the plurality of connecting holes are arranged in a ring at a distance from the upper flange and provide the connection of the plurality of fixing screws.

[0016] Optionally, further comprising a lower spring and a pressure adjusting cover, the lower spring is located in the base and has two ends respectively elastically abutting against the diaphragm and the pressure adjusting member, the pressure adjusting member has a threaded hole, the pressure adjusting cover is located at the lower side of the base and combined with a pressure adjusting rod, the pressure adjusting rod penetrates into the limiting slot and has external threads screwing the threaded hole.

[0017] Optionally, the diaphragm has a stop plate and a connecting member penetrating from the center downward, the connecting member has an upper sleeve groove and is combined with the stop plate at the lower end, the upper sleeve groove sleeves the lower end of the valve rod, and the stop plate is located between the diaphragm and the upper end of the lower spring.

[0018] Optionally, the adjuster has an upper connecting edge protruding upward at the periphery, a pressure gauge cover covers the inside of the upper connecting edge, the pressure gauge is located in the pressure gauge cover, and the pressure gauge cover has a perspective mirror corresponding to the pressure gauge. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective combination diagram of the present application.

[0020] Figure 2 It is a perspective exploded diagram of the present application.

[0021] Figure 3 It is a perspective diagram of the base of the present application.

[0022] Figure 4 It is a perspective exploded diagram of the gas control group of the present application.

[0023] Figure 5 It is a bottom view of the valve sleeve of the present application.

[0024] Figure 6 It is Figure 1 a sectional view of the VI-VI line segment.

[0025] Figure 7 It is Figure 1 a sectional view of the VII-VII line segment.

[0026] Figure 8 It is Figure 6 an enlarged view.

[0027] Figure 9 It is Figure 8 a sectional view of the combination of the gas control part, the gas control group and the diaphragm.

[0028] Figure 10 It is Figure 1 a sectional view of the X-X line segment.

[0029] Figure 11 It is Figure 6A schematic diagram illustrating the operation of rotating the pressure regulating cover to change the upward deformation of the diaphragm and push the valve stem, thereby adjusting the pressure of gas passing through the valve orifice.

[0030] In the picture:

[0031] Regulator 10; Inlet end 11; Outlet end 12; Upper flange 15; Diaphragm 16; Support plate 161; Connector 162; Upper sleeve groove 1621; Air control section 17; Air chamber 171; Pressure regulating chamber 18; Fixing screw 19; Pressure gauge 20; Dial 21; Lateral joint 22; Pressure guide hole 221; Large diameter end groove 222; Screw 23; O-ring 231; Base 30; Limiting groove 31; Upper flange 32; Joint hole 33; Pressure regulating component 34; Threaded hole 341; Lower spring 40; Pressure regulating cover 50; Pressure regulating rod 51; External thread 511; Pressure gauge cover 60; Lens 61; Air control assembly 70; Valve sleeve 71 ; Lower end 711; Valve hole 712; Inner hole edge 713; Side connecting piece 714; Outer guide plate 715; Outer guide hole 716; Valve stem 72; Head end 721; Leak-proof ring 722; Upper spring 73; Connector 80; Flow path 100; Air inlet 110; Air outlet 120; Flow channel 130; Internal thread section 131; Side guide groove 132; Second flow channel 140; Vent gap A; Air outlet space B. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0033] Please see Figures 1 to 10 As shown, a pressure regulating device of the present invention includes:

[0034] A regulator 10 has a flow path 100 and a pressure regulating chamber 18 that are interconnected. The regulator 10 has an air inlet end 11 and an air outlet end 12 that protrude to both sides, and the air inlet end 11 is connected to a connector 80.

[0035] A gas control assembly 70 is assembled in the pressure regulating chamber 18 and includes a valve sleeve 71, a valve stem 72 and an upper spring 73. The upper spring 73 pushes the valve stem 72 within the valve sleeve 71 to move relative to the valve sleeve 71, thereby controlling the flow or blockage of gas from the inlet 110 to the outlet 120.

[0036] A pressure gauge 20 is located above the regulator 10 and has a lateral connection 22. The pressure gauge 20 is assembled with the lateral connection 22 and has an operating space between it and the connector 80. The lateral connection 22 has a pressure guide hole 221 that communicates with the flow path 100 to sense the pressure of the flow path 100.

[0037] Further details of the embodiments of the present application are described in the following, the pressure gauge 20 of the present application is arranged above the regulator 10 in a superimposed direction, and, as shown in Figure 2 , Figure 6 When the pressure gauge 20 is assembled with the regulator 10 through the lateral combination part 22 extending to one side, the pressure gauge 20 extends towards the outlet end 12, and is thus superimposed on the regulator 10. Therefore, there is sufficient space between the pressure gauge 20 and the joint 80, and the pressure gauge 20 does not interfere with the installation of the joint 80. The present application improves the structure of the pressure gauge of the prior art regulator, and eliminates the inconvenience caused by the interference of the pressure gauge during installation. The present application is novel and progressive.

[0038] The features of the components of the present application are described in the following, in the above Figures 1 to 10 The pressure gauge 20 has a dial 21, and the lateral combination part 22 protrudes from one side of the dial 21. A pressure guide hole 221 is located on the side opposite the dial 21, penetrates the lateral combination part 22, and has a large-diameter end groove 222. A screw 23 penetrates the pressure guide hole 221, is screwed into the flow channel 130, and fixes the pressure gauge 20. The head of the screw 23 is embedded in the large-diameter end groove 222, and an O-ring 231 is sleeved between the head and the large-diameter end groove 222 to prevent leakage. Therefore, the pressure guide hole 221 located on the side of the dial 21 allows the screw 23 to be easily penetrated and combined with the pressure gauge 20, and avoids interference with the dial 21, thereby facilitating the assembly and operation of the pressure gauge 20.

[0039] Secondly, as shown in Figure 6 , Figures 8 to 10 The flow path 100 includes a flow channel 130, an inlet 110 located in the inlet end 11, and an outlet 120 located in the outlet end 12. One end of the flow channel 130 communicates with the inlet 110, and the other end penetrates the upper surface of the regulator 10. The flow channel 130 has an internal thread section 131 located near the inner wall of the penetrating end, and the internal thread section 131 has a plurality of lateral guide grooves 132 arranged in a ring. The internal thread section 131 provides a lower end of the screw 23 for fixing the pressure gauge 20. The diameter of the pressure guide hole 221 is greater than that of the screw 23, and there is a gap between the pressure guide hole 221 and the screw 23, which communicates with the plurality of lateral guide grooves 132. Therefore, the plurality of lateral guide grooves 132 smoothly guide the gas in the flow channel 130, and the gas enters the pressure gauge 20 through the gap between the pressure guide hole 221 and the screw 23, thereby allowing the pressure gauge 20 to detect and display pressure.

[0040] Furthermore, as shown in Figure 6 , Figure 8 andFigure 9 As shown, the regulator 10 has a gas control portion 17 located in the pressure regulating chamber 18, which is connected to the gas inlet 110 and the gas outlet 120, and the gas control portion 17 has a gas chamber 171 connected to the pressure regulating chamber 18 and provided with a set of gas control groups 70, and the flow path 100 includes a second flow path 140 located between the gas inlet 110 and the top of the regulator 10, and the second flow path 140 is connected to the flow path 130 and the gas chamber 171, and the gas chamber 171 is connected to the pressure regulating chamber 18. Furthermore, the valve sleeve 71 has a lower end portion 711 with a valve hole 712 larger than the valve rod 72 and an inner hole rim 713 protruding from the valve hole 712, and the valve rod 72 has a head end 721 located in the valve sleeve 71 and a leak-proof ring 722, which is sleeved on the valve rod 72 and located between the head end 721 and the inner hole rim 713, and the other end of the valve rod 72 extends out of the valve hole 712. Therefore, when the gas pressure is greater than the pushing force of the upper spring 73 pushing the valve rod 72 from the head end 721, the gas pressure pushes the leak-proof ring 722 away from the inner hole rim 713 of the valve hole 712 and forms a gas passage gap A, so as to provide a passage for the gas flowing from the gas inlet 110 to the gas outlet 120; on the contrary, when the gas pressure is less than the pushing force of the upper spring 73 pushing the valve rod 72 from the head end 721, the upper spring 73 pushes the valve rod 72 from the head end 721 to make the leak-proof ring 722 abut against the inner hole rim 713 of the valve hole 712 to block the gas flow.

[0041] In addition, as shown in Figure 6 , Figure 8 , Figure 9 , Figure 10 The valve sleeve 71 has two side tabs 714 protruding outwardly from the lower end portion 711, and an outer guide plate 715 connected to the outer ends of the two side tabs 714, which is arranged at a distance from the lower end portion 711 and has an outer guide hole 716 opposite the valve hole 712, and the outer guide plate 715 and the lower end portion 711 form a gas outlet space B connected to the valve hole 712, and the outer guide hole 716 is sleeved with the valve rod 72 extending out of the valve hole 712; therefore, the lower segment of the valve rod 72 is sleeved and limited by the guide hole 716, and the valve rod 72 is guided to move stably relative to the valve sleeve 71, so as to avoid the shaking noise caused by the disturbance of the gas to the valve rod 72, and improve the smoothness of use.

[0042] Furthermore, as shown in Figure 6 , Figure 8 , Figure 9 , Figure 10As shown, the adjuster 10 further covers the downward opening of the pressure regulating chamber 18 with a diaphragm 16, and the adjuster 10 is downwardly combined with a base 30 provided with a limiting groove 31, an upper flange 32 and a plurality of combined holes 33. The limiting groove 31 is limited to set a pressure regulating member 34, the upper flange 32 is larger than the limiting groove 31 and is opposite to the diaphragm 16, and the combined holes 33 are circularly arranged on the upper flange 32 and are combined with the fixing screws 19. Therefore, the base 30 is stably positioned and supported by the upper flange 32.

[0043] As shown, Figure 6 , Figures 8 to 11 the adjuster 10 further includes a lower spring 40 and a pressure regulating cover 50. The lower spring 40 is located in the base 30 and is elastically contacted with the diaphragm 16 and the pressure regulating member 34, the pressure regulating member 34 is provided with a threaded hole 341, and the pressure regulating cover 50 is located on the lower side of the base 30 and is combined with a pressure regulating rod 51. The pressure regulating rod 51 penetrates into the limiting groove 31 and is provided with external threads 511 which are screwed into the threaded hole 341. Therefore, the pressure regulating cover 50 rotates the pressure regulating rod 51 and is screwed into the threaded hole 341 of the pressure regulating member 34. The pressure regulating member 34 is limited in the limiting groove 31 and is lifted and lowered by the external threads 511 of the pressure regulating rod 51. The pressure regulating member 34 compresses the lower spring 40 to change the upward deformation of the diaphragm 16 and the pushing force of the valve rod 72, so as to adjust the pressure of the gas passing through the valve hole 712. Therefore, when the pressure regulating cover 50 is rotated in the arrow direction, the external threads 511 of the pressure regulating rod 51 drive the pressure regulating member 34 to be lowered and the diaphragm 16 is deformed downward in the arrow direction. The upper spring 73 pushes the valve rod 72 downward to reduce the air gap A, so as to form the adjustment operation of adjusting the gas flow pressure. Figure 10

[0044] As shown, Figure 8 , Figure 9 the diaphragm 16 is provided with a stop plate 161 and a connecting member 162 which penetrates downward from the center. The connecting member 162 is provided with an upper sleeve groove 1621 and is combined with the stop plate 161 at the lower end. The upper sleeve groove 1621 is sleeved with the lower end of the valve rod 72, and the stop plate 161 is located between the diaphragm 16 and the upper end of the lower spring 40. Therefore, the stop plate 161 supports the diaphragm 16 to form uniform deformation and stable lifting and lowering, and the upper sleeve groove 1621 is sleeved with the lower end of the valve rod 72 to further limit the shaking noise of the valve rod 72 caused by the disturbance of the gas.

[0045] Finally, as shown, Figure 1 , Figure 2 , Figure 6 , Figure 8 ​As shown, the adjuster 10 has an upper edge 15 protruding upwardly from the periphery, a pressure gauge cover 60 is covered on the inner side of the upper edge 15, the pressure gauge 20 is located in the pressure gauge cover 60, and the pressure gauge cover 60 has a perspective mirror 61 corresponding to the pressure gauge 20; thus, the pressure gauge 20 can be viewed through the perspective mirror 61 and the detected pressure can be read.

[0046] The above-described embodiments are only preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Any equivalent substitutions or transformations made by those skilled in the art based on the present application are within the protection scope of the present application. The protection scope of the present application is subject to the claims.

Claims

1. A pressure regulating device, characterized by, The utility model relates to an adjusting device, comprising: an adjusting device having a flow path and a pressure regulating chamber, the adjusting device having an air inlet end and an air outlet end protruding to two sides, and the air inlet end being combined with a joint; a gas control assembly arranged in the pressure regulating chamber and comprising a valve sleeve, a valve rod and an upper spring, the upper spring pushing the valve rod to move relative to the valve sleeve in the valve sleeve to control the flow or block of gas from the air inlet end to the air outlet end; a pressure gauge arranged above the adjusting device and having a lateral combination part, the pressure gauge being arranged with the lateral combination part and having an operating space between the pressure gauge and the joint, the lateral combination part having a pressure guide hole connected to the flow path to sense the pressure of the flow path, the pressure gauge having a dial, and the lateral combination part protruding from one side of the dial, the pressure guide hole being located on the side opposite to the dial and penetrating the lateral combination part and having a large-diameter end slot; the flow path comprising a flow channel, an air inlet arranged in the air inlet end and an air outlet arranged in the air outlet end, one end of the flow channel being connected to the air inlet and the other end penetrating the upper surface of the adjusting device, the flow channel having an internal thread section arranged near the inner wall of the penetrating end, and the internal thread section having a plurality of side guide slots arranged in a ring shape, a screw being arranged in the pressure guide hole and screwed with the flow channel to fix the pressure gauge, the head of the screw being embedded in the large-diameter end slot, and an O-ring being arranged between the head and the large-diameter end slot to prevent leakage, the internal thread section providing the lower end of the screw to fix the pressure gauge, the diameter of the pressure guide hole being larger than that of the screw, and the pressure guide hole and the screw having a gap and being connected to the plurality of side guide slots.

2. The pressure regulating device of claim 1, wherein the adjusting device having a gas control part arranged in the pressure regulating chamber, the pressure regulating chamber being arranged between the air inlet and the air outlet, the gas control part having a gas chamber arranged to accommodate the gas control assembly, the flow path comprising a second flow channel arranged between the air inlet and the top of the adjusting device, the second flow channel being connected to the flow channel and the gas chamber, and the gas chamber being connected to the pressure regulating chamber.

3. The pressure regulating device of claim 1, wherein the valve sleeve having a lower end part, the lower end part having a valve hole larger than the valve rod and an inner hole rim protruding from the valve hole, the valve rod having a head end and a leak-proof ring arranged in the valve sleeve, the leak-proof ring being arranged to accommodate the valve rod and located between the head end and the inner hole rim, and the other end of the valve rod protruding from the valve hole.

4. The pressure regulating device of claim 3, wherein the valve sleeve having two side tabs protruding outward from the lower end part, and an outer guide plate connected to the outer ends of the two side tabs, the outer guide plate being arranged at a distance from the lower end part and having an outer guide hole opposite to the valve hole, and the outer guide plate and the lower end part forming an air outlet space connected to the valve hole, and the outer guide hole being arranged to accommodate the valve rod protruding from the valve hole.

5. The pressure regulating device of claim 1, wherein the adjusting device further having a diaphragm cover arranged to cover the downward opening of the pressure regulating chamber, the adjusting device being combined with a base downward by a plurality of fixing screws arranged in a ring shape, the base having a limiting slot, an upper flange and a plurality of combination holes, the limiting slot being arranged to accommodate a pressure regulating part, the upper flange being larger than the limiting slot and opposite to and abutting against the bottom side of the diaphragm periphery, and the plurality of combination holes being arranged in the upper flange in a ring shape and providing the combination of the plurality of fixing screws.

6. The pressure regulating device of claim 5, wherein Further comprising a lower spring located in the base and elastically abutting the diaphragm and the pressure regulating member at both ends respectively, the pressure regulating member having a threaded hole, and a pressure regulating cover located at the lower side of the base and combined with a pressure regulating rod, the pressure regulating rod penetrating into the limiting slot and having external threads screwing the threaded hole.

7. The pressure regulating device of claim 6, wherein The diaphragm has a stop plate and a connecting member penetrating from the center downward, the connecting member having an upper sleeve groove combined with the stop plate at the lower end, the upper sleeve groove sleeving the lower end of the valve rod, and the stop plate located between the diaphragm and the upper end of the lower spring.

8. The pressure regulating device of claim 1, wherein The adjuster has an upper connecting edge protruding upward at the periphery, and a pressure gauge cover covering the inside of the upper connecting edge, and the pressure gauge is located in the pressure gauge cover, and the pressure gauge cover has a perspective mirror corresponding to the pressure gauge.

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