TWI818321B - pressure adjustment device - Google Patents

Abstract

A pressure regulating device includes: a regulator, which has an interconnected first flow path, a pressure regulating chamber, the regulator has an air inlet end and an air outlet end protruding to both sides, and the air inlet end is combined with a joint; a gas control group is assembled in the pressure regulating chamber and includes a valve sleeve, a The valve stem and an upper spring push the valve stem in the valve sleeve to move relative to the valve sleeve to control the flow or blocking of gas from the air inlet end to the air outlet end; a pressure gauge , which is located above the regulator and has a lateral joint part. The pressure gauge is assembled on the regulator with the lateral joint part and has an operating space between it and the joint, thereby avoiding the installation of the pressure gauge and the joint. Operational interference and inconvenience.

Description

pressure adjustment device

The present invention relates to the technical field of gas and gas equipment, and in particular, to a pressure regulating device provided for installation and use in gas and gas pipelines and combined with a pressure gauge.

Generally speaking, gas is usually stored at high pressure, and a regulator is usually installed between the pipeline and the gas at a certain pressure to the user end to adjust the gas output and use to maintain a certain pressure so that the gas can be supplied smoothly.

The structure of the regulator generally includes a body, a joint, a pipe and a pressure gauge located between the body and the joint. The pipe is connected to the body and the joint, and the pressure gauge is connected to the pipe between the body and the joint, so that the pressure gauge The meter head will be close to the connector because it extends outward.

Therefore, the structure of the regulator will take up more space because the pressure gauge is connected to the body and extends outward between the joints, increasing interference and inconvenience during installation and use. Especially when connecting to the gas pipeline through the joints, the joints must be rotated. When turning the knob, it is easily interfered and restricted by the pressure gauge, causing inconvenience.

The main purpose of the present invention is to provide an operating space between the pressure gauge and the joint when a pressure gauge is assembled on the regulator in a structure in which the regulator has an air inlet protruding from one side and is combined with a joint. And avoid interference and inconvenience in the installation operation of pressure gauges and joints.

In order to achieve the above objects and effects, the present invention provides a pressure regulating device, which includes: a regulator with an interconnected first flow path and a pressure regulating chamber. The regulator has an air inlet end and an air outlet protruding to both sides. end, and the air inlet end is combined with a joint; an air control group, which is assembled in the pressure regulating chamber and includes a valve sleeve, a valve stem and an upper spring, and the upper spring pushes the valve in the valve sleeve The rod moves relative to the valve sleeve to control the flow or blocking of gas flow from the air inlet end to the air outlet end; a pressure gauge, which is located above the regulator and has a lateral joint, the pressure gauge The lateral joint part is assembled on the regulator and has an operating space between it and the joint to avoid interference between the pressure gauge and the joint installation operation. The lateral joint part has a pressure guide hole connected to the flow path for Sensing the pressure of the flow path; the regulator has an upper flange protruding upward from the periphery, and a pressure gauge cover is installed inside the upper flange, 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.

10:Adjuster

11:Inlet end

12: Outlet end

15: The upper connection

16:Diaphragm

161:Dieban

162: Connector

1621: Upper slot

17: Qi Control Department

171:Air chamber

18: Pressure regulating chamber

19: Fixing screws

20: Pressure gauge

21:Dial

22: Lateral joint

221: Pressure guide hole

222: Large diameter end groove

23:Screw

231:O-ring

30: base

31: Limit slot

32: Upper flange

33:Combining hole

34: Pressure regulating parts

341:Threaded hole

40:Lower spring

50: Pressure regulating cover

51: Pressure regulating lever

511: External thread

60: Pressure gauge cover

61:Perspective mirror

70: Gas control group

71: Valve sleeve

711:Lower end

712: Valve hole

713: Inner hole edge

714: Side piece

715:Outer guide plate

716:Outer guide hole

72:Valve stem

721: Head end

722: Anti-leak ring

73: Upper spring

80:Connector

100:Flow path

110:Air inlet

120:Air outlet

130:Flow channel

131: Internal thread section

132:Side guide groove

140:Second flow channel

A: Ventilation gap

B: space for breathing

The first figure is a schematic diagram of a three-dimensional combination of the present invention.

The second figure is a three-dimensional exploded schematic diagram of the present invention.

The third figure is a schematic three-dimensional view of the base of the present invention.

The fourth figure is a three-dimensional exploded schematic diagram of the gas control group of the present invention.

The fifth figure is a schematic three-dimensional view of the valve sleeve of the present invention from an upward angle.

The sixth figure is a schematic cross-sectional view of line segment VI-VI in the first figure.

The seventh figure is a schematic cross-sectional view of line segment VII-VII in the first figure.

The eighth picture is an enlarged diagram of the sixth picture.

The ninth figure is a schematic cross-sectional view of the gas control part, the gas control group and the mold in the eighth figure.

The tenth picture is a schematic cross-sectional view of the X-X line segment in the first picture.

Figure 11 is a schematic diagram of the operation of turning the pressure regulating cap from Figure 6 to change the upward deformation of the diaphragm and push the valve stem to adjust the pressure of gas passing through the valve hole.

Referring to Figures 1 to 10, a pressure regulating device of the present invention includes: a regulator with an interconnected first flow path and a pressure regulating chamber. The regulator has an air inlet end protruding to both sides, An air outlet end, and the air inlet end is combined with a joint; an air control group, which is assembled in the pressure regulating chamber and includes a valve sleeve, a valve stem and an upper spring, and the upper spring pushes in the valve sleeve The valve stem moves relative to the valve sleeve to control the flow or blocking of gas from the air inlet end to the air outlet end; a pressure gauge located above the regulator and having a lateral joint, the The pressure gauge is assembled on the regulator with the lateral joint part and has an operating space between it and the joint to avoid interference between the pressure gauge and the joint installation operation. The lateral joint part has a pressure guide hole connected to the flow path. It is used to sense the pressure of the flow path; the regulator has an upper flange protruding upward from the periphery, and a pressure gauge cover is installed inside the upper flange, and the pressure gauge is located inside the pressure gauge cover. , and the pressure gauge cover has a perspective mirror corresponding to the pressure gauge.

The foregoing are the main technical features of the main embodiment of the present invention, which correspond to the content of the first item of the patent scope of this case, so that the purpose and implementation mode of the present invention can be known in detail, while the other technical features described in the appended patent scope are for The detailed description or additional technical features of the first item of the patent application scope are not used to limit the scope of the first item of the patent application scope. It should be noted that the first item of the patent application scope in this case does not necessarily include the description of the patent scope of other subsidiary applications. technical characteristics.

Continuing with the above content, the embodiment of the present invention is further described in detail. The pressure gauge 20 of the present invention is located above the regulator 10 and is arranged in an overlapping direction with the regulator 10. Moreover, as shown in the second and sixth figures, the pressure gauge 20 is 20 When assembled with the regulator 10 through the lateral joint portion 22 extending to one side, the pressure gauge 20 extends toward the direction of the air outlet 12 and is stacked on the regulator 10. Therefore, the pressure gauge 20 can be There is ample operating space between 20 and the joint 80. When the installation and use operations are provided through the joint 80, the interference and inconvenience of the installation operation of the pressure gauge 20 and the joint 80 can be effectively avoided; therefore, the present invention does improve the conventional regulator. The pressure gauge installation structure has the disadvantage of being inconvenient due to interference from the pressure gauge during installation and use. The present invention is indeed novel and progressive.

The characteristics of each component of the present invention will be further described in detail below. In the first to tenth figures, the pressure gauge 20 has a dial 21, and the lateral connecting portion 22 protrudes from one side of the dial 21, and the pressure guide hole 221 is located on the side opposite to the dial 21 and penetrates the lateral joint part 22 and has a large diameter end groove 222. In addition, a screw 23 is used to pierce the pressure guide hole 221 and screw the flow channel 130 to fix the pressure gauge. 20, so that the head of the screw 23 can be embedded in the large-diameter end groove 222, and an O-ring 231 is set between the head and the large-diameter end groove 222 to prevent leakage; therefore, by guiding pressure The hole 221 is located on one side of the dial 21 and can provide screws 23 to facilitate assembly and combination of the pressure gauge 20 and avoid interference with the dial 21, thereby facilitating the assembly operation of the pressure gauge 20.

Secondly, as shown in Figures 6, 8 to 10, the flow path 100 includes a channel 130, an air inlet 110 located in the air inlet end 11 and an air outlet 120 located in the air outlet end 12. The flow channel One end of 130 is connected to the air inlet 110 and the other end passes through the upper surface of the adjuster 10. The flow channel 130 has an internal thread section 131 located near the inner wall of one end, and the internal thread section 131 has a ring. A plurality of side guide grooves 132 are arranged in a like shape. The internal thread section 131 provides a screw assembly at the lower end of the screw 23 to fix the pressure gauge 20. The diameter of the pressure guide hole 221 is larger than that of the screw 23. There is a gap between the pressure guide hole 221 and the screw 23. There are gaps and are connected to the plurality of side guide grooves 132; Therefore, the gas in the flow channel 130 is smoothly guided by the plurality of side guide grooves 132, and can enter the pressure gauge 20 through the gap between the pressure guide hole 221 and the screw 23, and the pressure gauge 20 is provided for pressure detection and display.

Furthermore, as shown in Figures 6, 8, and 9, the regulator 10 has an air control part 17 located in the pressure regulating chamber 18, and the pressure regulating chamber 18 communicates with the air inlet 110 and the air outlet 120. The air control part 17 has an air chamber 171 that communicates with the pressure regulating chamber 18 and provides a set of the air control group 70 . The flow path 100 includes a second flow path between the air inlet 110 and the top of the regulator 10 The second flow channel 140 communicates with the flow channel 130 and the air chamber 171 , and the air chamber 171 communicates with the pressure regulating chamber 18 . Moreover, the valve sleeve 71 has a lower end 711, the lower end 711 has a valve hole 712 larger than the valve stem 72 and an inner hole edge 713 protruding from the valve hole 712. The valve stem 72 has an inner hole located on the valve sleeve. 71 has an end 721 and an anti-leak ring 722. The anti-leak ring 722 is assembled with the valve stem 72 and is located between the head end 721 and the inner hole edge 713, and the other end of the valve stem 72 extends out of the valve. Hole 712. Therefore, when the gas pressure is greater than the thrust force of the upper spring 73 pushing the valve stem 72 from the head end 721, the gas pressure pushes the anti-leak ring 722 away from the inner hole edge 713 of the valve hole 712 and forms a ventilation gap A, It is used to provide the gas flowing from the air inlet 110 to the air outlet 120 to pass; on the contrary, when the gas pressure is less than the thrust force of the upper spring 73 pushing the valve stem 72 from the head end 721, the upper spring 73 will push the valve stem 72 from the head end. 721 pushes the valve stem 72 to make the anti-leak ring 722 abut against the inner hole edge 713 of the valve hole 712 to block the closed air flow.

In addition, as shown in Figures 6, 8, 9 and 10, the valve sleeve 71 has two side pieces 714 protruding outward from the lower end 711, and an outer guide plate connected to the outer ends of the two side pieces 714. 715, the outer guide plate 715 is spaced apart from the lower end 711 and has an outer guide hole 716 opposite to the valve hole 712, and a channel is formed between the outer guide plate 715 and the lower end 711 to communicate with the valve hole 712. An air outlet space B, and the outer guide hole 716 is assembled with the valve stem 72 protruding from the valve hole 712; therefore, the guide hole 716 is used to provide a limit for the lower section of the valve stem 72 and guide the valve The rod 72 moves stably relative to the inside of the valve sleeve 71 to prevent the valve rod 72 from being affected by gas disturbance and causing shaking noise, thereby improving the smoothness of use.

Moreover, as shown in Figures 6, 8, 9 and 10, the regulator 10 also covers the downward opening of the pressure regulating chamber 18 with a diaphragm 16, and the regulator 10 is provided with a plurality of fixing screws 19 in a ring. A base 30 is coupled downward. The base 30 has a limiting groove 31, an upper flange 32 and a plurality of combination holes 33. The limiting groove 31 limits a pressure regulating member 34. The upper flange 32 is larger than the The limiting groove 31 is relatively close to the bottom side of the periphery of the diaphragm 16, and the plurality of coupling holes 33 are spaced around the upper flange 32 and provide for the plurality of fixing screws 19 to be combined; therefore, the base 30 passes through the upper flange 32 provides firm positioning and fixed support for the bottom side of the periphery of the diaphragm 16 .

In addition, as shown in Figures 6, 8 to 11, it further includes a lower spring 40 and a pressure regulating cover 50. The lower spring 40 is located in the base 30 and has its two ends springing against the diaphragm 16 and the pressure regulating cover respectively. The pressure regulating member 34 has a threaded hole 341. 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 has a screw assembly. The threaded hole 341 has an external thread 511 . Therefore, the pressure regulating cover 50 rotates the pressure regulating rod 51 and screws the threaded hole 341 of the pressure regulating member 34 with the external thread 511. The pressure regulating member 34 is limited by the limiting groove 31 and cannot rotate and is adjusted by the pressure regulating member 34. The external thread 511 of the pressure rod 51 drives the lift, and the pressure regulating member 34 compresses the lower spring 40 to change the thrust of the diaphragm 16 to deform upward and push the valve stem 72, thereby adjusting the pressure of the gas passing through the valve hole 712; therefore, when When the pressure regulating cover 50 is rotated in the direction of the arrow in Figure 10, the external thread 511 of the pressure regulating rod 51 drives the pressure regulating member 34 down and deforms the diaphragm 16 downward in the direction of the arrow, and the upper spring 73 pushes the valve stem 72 toward The ventilation gap A is reduced to form an adjustment operation of increasing the gas flow pressure.

Moreover, as shown in Figures 8 and 9, the diaphragm 16 has a backing plate 161 and a connecting piece 162 penetrating downward from the center. The connecting piece 162 has an upper groove 1621 and is coupled to the backing plate 161 at the lower end. The upper sleeve groove 1621 sets the lower end of the valve stem 72, and the resisting plate 161 is located between the diaphragm 16 and the upper end of the lower spring 40; therefore, the resisting plate 161 supports the die 16 to form uniform deformation. Stable lifting and lowering, and the upper sleeve groove 1621 is set at the lower end of the valve stem 72, further limiting the valve stem 72 from shaking noise caused by gas disturbance.

Finally, as shown in Figures 1, 2, 6 and 8, the regulator 10 has an upper flange 15 protruding upward from the periphery, and a pressure gauge cover 60 is set inside the upper flange 15, and 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; therefore, the pressure gauge 20 can be seen through the perspective mirror 61 and the detected data can be read. Measure pressure.

10:Adjuster

11:Inlet end

12: Outlet end

15: The upper connection

30: base

50: Pressure regulating cover

60: Pressure gauge cover

61:Perspective mirror

80:Connector

Claims (9)

A pressure regulating device, including: a regulator with an interconnected first flow path and a pressure regulating chamber. The regulator has an air inlet end and an air outlet end protruding to both sides, and the air inlet end is combined with a joint. ; A gas control group, which is assembled in the pressure regulating chamber and includes a valve sleeve, a valve stem and an upper spring. The upper spring pushes the valve stem in the valve sleeve to move relative to the valve sleeve. To control the flow or blocking of gas flow from the air inlet end to the air outlet end; a pressure gauge, which is located above the regulator and has a lateral joint part, and the pressure gauge is assembled on the lateral joint part There is an operating space between the regulator and the joint to avoid interference between the pressure gauge and the joint installation operation. The lateral joint part has a pressure guide hole connected to the flow path to sense the pressure of the flow path; the adjustment The device has an upper flange protruding upward from the periphery, and a pressure gauge cover is installed inside the upper flange, so that the pressure gauge is located in the pressure gauge cover, and the pressure gauge cover has a corresponding pressure gauge. of a perspective mirror. The pressure adjustment device as claimed in claim 1, wherein the pressure gauge has a dial, and the lateral connecting portion protrudes from one side of the dial, and the pressure guide hole is located on the other side opposite to the dial and runs through the lateral The joint part has a large-diameter end groove, and a screw is passed through the pressure guide hole and the flow channel is screwed together to fix the pressure gauge so that the head of the screw can be buried in the large-diameter end groove, and a screw is used to assemble the pressure guide hole and the flow channel. The O-ring set is installed between the head and the large diameter end groove to prevent leakage. The pressure adjustment device of claim 2, wherein 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, and one end of the flow channel is connected to the air inlet and The other end passes through the upper surface of the adjuster, and the flow channel has an inner wall located near the exit end. An internal thread segment, and the internal thread segment has a plurality of side guide grooves arranged in an annular manner. The internal thread segment provides the lower end thread group of the screw to fix the pressure gauge. The diameter of the pressure guide hole is larger than that of the screw. The pressure guide hole is connected to the screw. There are gaps between the screws and connect the plurality of side guide grooves. The pressure regulating device as claimed in claim 3, wherein the regulator has an air control part located in the pressure regulating chamber, the pressure regulating chamber is located between the air inlet and the air outlet, and the air control part has a sleeve provided An air chamber of the air control group, the flow path includes a second flow channel between the air inlet and the top of the regulator, the second flow channel connects the flow channel and the air chamber, and the air chamber Connect to the pressure regulating chamber. The pressure adjusting device of claim 1, wherein the valve sleeve has a lower end, the lower end has a valve hole larger than the valve stem and an inner hole rim protruding from the valve hole, and the valve stem has One end and an anti-leak ring located in the valve sleeve. The anti-leak ring covers the valve stem and is located between the head end and the inner hole edge, and the other end of the valve stem extends out of the valve hole. The pressure adjusting device of claim 5, wherein the valve sleeve has two side pieces protruding outward from the lower end, and an outer guide plate connected to the outer ends of the two side pieces, and the outer guide plate is connected to the outer end of the two side pieces. The lower end is spaced apart and has an outer guide hole relative to the valve hole, and an air outlet space is formed between the outer guide plate and the lower end that communicates with the valve hole, and the outer guide hole extends from the The stem set of the valve hole. The pressure adjusting device as claimed in claim 1, wherein the adjuster is further equipped with a diaphragm cover to set the downward opening of the pressure regulating chamber, and the adjuster is connected downwardly to a base with a plurality of fixing screws arranged in a ring, and the base is It has a limit groove, an upper flange and a plurality of combination holes. The limit groove limit set is assembled with a pressure regulating component. The upper flange is larger than the limit groove and is relatively close to the bottom side of the diaphragm periphery. The plurality of The coupling holes are spaced around the upper flange and provide for coupling of the plurality of fixing screws. The pressure adjustment device as described in claim 7 further includes a lower spring and a pressure adjustment cover. The lower spring is located in the base and has its two ends springing against the diaphragm and the pressure adjustment member respectively. The pressure adjustment member has There is a threaded hole. The pressure regulating cover is located on the lower side of the base and is combined with a pressure regulating rod. The pressure regulating rod penetrates into the limiting groove and has an external thread threaded into the threaded hole. The pressure adjustment device as claimed in claim 8, wherein the diaphragm has a backing plate and a connecting piece penetrating downward from the center. The connecting piece has an upper sleeve groove and is coupled to the backing plate at the lower end. The upper sleeve The groove sleeve sets the lower end of the valve stem, and the resisting plate is located between the diaphragm and the upper end of the lower spring.