TWM612996U - Pressure adjusting device for high pressure fluid - Google Patents

Abstract

This creation is to provide a pressure adjustment device for high-pressure fluid, which at least includes a main tube Body, an inlet pipe body, an outlet cylinder, a bridging pipe body, a first elastic body and an inlet adjusting part; the inlet pipe body, the bridging pipe body, and the outlet column system pass through the main body in sequence Inside the pipe body, the bridging pipe system can move back and forth. The first elastic system is set between the inlet pipe body and the bridging pipe body, and the inflow adjusting part is set between the inlet pipe body and the outflow cylinder. The adjusting part at least includes a sliding part, a moving tube body, a starting tube body, a linkage part, a valve and a second elastic body. The sliding part is arranged on the outflow cylinder, and the moving tube system is movably arranged at The sliding part, the valve and the second elastic body are arranged between the inlet pipe body and the bridging pipe body. The activating pipe body is used to activate the linkage part, and then move the pipe body and the valve together to change the distance between the valve and the bridging pipe body. The middle part of the valve is provided with an accommodating groove for accommodating and attaching to the opening at one end of the movable pipe body.

Description

Pressure adjusting device for high pressure fluid

This creation is related to a fluid pressure reducing valve, especially a pressure regulating device for high pressure fluid.

Generally, gas cylinders filled with high-pressure gas, such as gas cylinders, oxygen cylinders, and acetylene cylinders, are equipped with a pressure reducing valve on the side of the gas outlet of the barrel to output low-pressure fluid. The elastic actuation direction of the pressure reducing valve It is generally perpendicular to the direction of the fluid.

Please refer to another pressure reducing valve 9 in Figure 9, which is a direct communication pressure reducing valve, which is directly connected to the flow channel. In other words, the elastic actuation direction of the pressure reducing valve 9 is generally parallel to the direction of the fluid. After a high-pressure fluid enters from an inlet 91 of an inlet pipe 90, the fluid will flow through a gap between a valve 92 and an intermediate pipe body 93 and output. There is an inlet spring 911 between the inlet pipe 90 and the intermediate pipe body 93. A pressure reducing spring 931 is arranged between the inlet pipe 90 and the intermediate pipe body 93. A moving pipe body 94 is arranged between the valve 92 and the intermediate pipe body 93. The tube body 94 is used to adjust the gap between the valve 92 and the intermediate tube body 93 to achieve the effect of controlling the flow rate. The valve 92 abuts against the opening at one end of the moving tube body 94 in a tangential manner. The space structure where the cut surface abuts usually makes the valve 92 susceptible to the influence of the fluid to swing, resulting in unstable output fluid and a small flow of output fluid. Furthermore, in order to maintain the stability of the valve 92, the valve 92 and The distance between the walls of the inlet pipe 90 is limited, which also limits the flow of the output fluid. The air output flow of this conventional direct communication pressure reducing valve is about 100 liters per minute (output air pressure 3 ~5 kg/cm ² ).

The main purpose of this creation is to provide a pressure adjusting device for high-pressure fluid, which can provide a larger flow of fluid after adjusting the pressure.

The secondary purpose of this creation is to provide a pressure adjustment device for high-pressure fluid, which can be installed in the air inlet of a tool such as a spray gun to adjust the pressure instantly.

Another purpose of this creation is to provide a pressure adjusting device for high-pressure fluid, which has the effect of quantitatively adjusting pressure.

The reason is that in order to achieve the aforementioned purpose, this creation is to provide a pressure adjustment device for high-pressure fluid, which at least includes a main tube body, an inlet tube body, an outlet cylinder body, a bridging tube body, and a first The elastic body and an inlet adjusting part; the inlet pipe body, the bridging pipe body, and the outlet column system are sequentially inserted into the main pipe body. The bridging pipe system can move back and forth, and the first elastic system is located in the inlet pipe Between the body and the bridging pipe body, the inflow adjustment part is arranged between the inlet pipe body and the outflow cylinder. The inflow adjustment part at least includes a sliding part, a moving pipe body, a starting pipe body, and a linkage Part, a valve and a second elastic body, the sliding part is arranged on the outflow cylinder, the moving pipe system is movably arranged on the sliding part, the valve and the second elastic body are arranged between the inlet pipe body and the bridging pipe body The activating pipe body is used to activate the linkage part, and then move the pipe body and the valve together to change the distance between the valve and the bridging pipe body. The middle section of the valve is provided with a receiving groove for receiving and attaching to the opening of the moving pipe body.

Hereinafter, a preferred embodiment of this creation will be cited, and further detailed description will be given in conjunction with the drawings as follows:

Please refer to Figures 1 to 8. The pressure regulating device for high-pressure fluid disclosed in this creation at least includes a main tube body 11, an inlet tube body 12, an outlet cylinder body 13, a bridging tube body 14, a The first elastic body 16 and an inflow adjusting part 17.

One end of the inlet pipe body 12 is air-tightly sheathed and fixed to the inner side of one end of the main pipe body 11, and the inlet pipe body 12 is used to receive a high-pressure fluid such as an air compressor or a high-pressure gas cylinder. air.

The peripheral side of one end of the outflow cylinder 13 is air-tightly sheathed and fixed to the inner side of the other end of the main pipe body 11.

The bridging pipe body 14 is arranged inside the main pipe body 11 and located between the inlet pipe body 12 and the outflow cylinder 13, and one end of the bridging pipe body 14 is air-tightly sheathed in the inlet Inside the other end of the tube body 12, one end of the bridging tube body 14 is reciprocally movable and connected to the inlet tube body 12, and the other end of the bridging tube body 14 is air-tightly sheathed inside the main tube body 11 The other end of the bridging pipe body 14 is reciprocally movable and connected to the main pipe body 11, and the cross section of the other end of the bridging pipe body 14 is set as an annular groove 42 adjacent to the outside of the outflow cylinder 13 When the bridging tube body 14 abuts the outflow cylinder 13, there is a gap between the bridging tube body 14 and the outflow cylinder 13, and the annular groove 42 is connected to the bridging tube body 14.

At least one channel 32 penetrating both ends of the outflow cylinder 13 is provided on the peripheral side of the outflow cylinder 13 to communicate with the annular groove 42 for receiving fluid from the inlet pipe body 12 and the bridging pipe body 14. The fluid is output to the other end of the outflow cylinder 13.

The first elastic body 16 is arranged between the inlet tube body 12 and the bridging tube body 14 like a coil spring for applying a first elastic force to the bridging tube body 14 toward the outflow column 13 direction The first elastic force is used to oppose the fluid exerting force on the bridging tube body 14 at the position of the annular groove 42 to generate the effect of reducing pressure to a value.

The inflow adjusting portion 17 is arranged between the inflow tube body 12 and the outflow cylinder 13, and includes a sliding portion 71, a moving tube body 72, a starting tube body 73, a linkage portion 74, a The valve 75 and a second elastic body 76.

The sliding portion 71 is an elongated groove in the longitudinal direction of the middle section of the outflow cylinder 13, with an opening 711 at one end corresponding to the annular groove 42, and the other end with two in the transverse direction The elongated narrow opening 712.

The movable pipe body 72 is movably arranged in the sliding portion 71, and the peripheral side of the middle section is air-tightly sheathed on the inner side of one end of the sliding portion 71, one end of which corresponds to the bridging pipe body 14 and the inlet The other end of the inner side of the tube body 12 corresponds to the two long and narrow openings 712 and is provided with two opposite embedding openings 721.

The activation tube 73 corresponds to the two long and narrow openings 712 and is pivotally connected to the outflow cylinder 13 through a sleeve. A spiral groove 731 is provided in the middle section of the inner surface of the activation tube 73.

The interlocking portion 74, such as the middle part of a rod, passes through the two elongated openings 712 and the two embedding openings 721, the two ends of the interlocking portion 74 are exposed from the two elongated openings 712, and the two ends of the interlocking portion 74 are slidable The ground is attached to the spiral groove 731 of the activation tube body 73 to be driven by the activation tube body 73, and then the moving tube body 72 can be reciprocally moved between a first position and a second position in the long axis direction. .

The valve 75 is corresponding to one end of the bridging pipe body 14 and is provided inside the inlet pipe body 12 to open and close the opening of one end of the bridging pipe body 14. The middle part of the valve 75 is provided with a receiving groove 751 for receiving and attaching One end of the movable tube body 72 is open, and one end of the movable tube body 72 is attached to the bottom surface of the receiving groove 751, which has a better airtight effect.

The second elastic body 76 is arranged between the valve 75 and the inlet pipe body 12 to apply a second elastic force to the valve 75 toward the bridging pipe body 14 so that the valve 75 is moved by the The tube body 72 is positioned between a third position and a fourth position when the tube body 72 is driven to change the distance between the valve 75 and the bridging tube body 14 to control the flow rate.

The pressure adjusting device for high-pressure fluid disclosed in the present invention, through the receiving groove 751, makes the valve 75 and the movable tube 72 have a relatively stable combination, and the valve 75 is not easily affected by the fluid. Swing, this creation can have a relatively stable output fluid and a large flow of output fluid.

Please refer to Fig. 2, Fig. 3, Fig. 6 and Fig. 7 again, the pressure adjusting device for high pressure fluid disclosed by this creation, wherein a first annular surface 34 is provided on the outer side of the outflow cylinder 13, and the start tube body A second annular surface 732 corresponding to the first annular surface 34 is provided on the inner side of one end of 73.

The first annular surface 34 is provided with a first positioning groove 341 for receiving a third elastic body 342 such as a coil spring and a positioning pin 343 such as a steel ball. One end of the third elastic body 342 is attached to the first positioning groove On the bottom surface of the groove 341, the other end of the third elastic body 342 is attached to the positioning pin 343 and used to apply a third elastic force to the positioning pin 343 toward the second annular surface 732.

The second annular surface 732 is provided with a plurality of second positioning grooves 7321 arranged at intervals for receiving part of the positioning pins 343, and then positioning the activation tube body 73, the linkage portion 74, the moving tube body 72 and the The valve 75 uses the aforementioned positioning design to have a stable output pressure.

Please refer to Figures 1, 2 and 3 again. The pressure adjustment device for high-pressure fluid disclosed by this creation, wherein a first mark 734 is provided on the outer side of the activation tube, and a plurality of rings are provided on the outer side of the main tube 11 A second mark 111 arranged at intervals is used to correspond to the first mark 734, and the first mark 734 corresponds to the second mark 111 in a different position, which is used to display the output pressure of the fluid, and also represents one of the second positioning grooves. 732 is the positioning pin 343 of the accommodating part to show that the creation is in a positioning state.

The pressure regulating device for high-pressure fluid disclosed in this creation, the receiving groove 751 of the valve 75 accommodates and is attached to the design of the movable pipe body 72, the valve 75 is not easy to swing, and the valve 75 and the inlet pipe body The distance between the tube walls of 12 will not be limited, so the air output flow of this creation is about 300~400 liters per minute (output air pressure 1.5~4 kg/cm ² ), which has the effect of low pressure and large flow. Can meet the needs of spray guns.

The pressure adjustment device for high-pressure fluid disclosed in this creation, wherein a non-leak gasket can be provided between the outflow cylinder 13 and the main tube 11 for airtightness, and the outflow cylinder 13 and A non-leak gasket can be provided between the movable pipe body 72 for airtightness, and a non-leak gasket can be provided between the bridging pipe body 14 and the main pipe body 11 for airtightness. The bridge pipe A non-leak gasket can be arranged between the body 14 and the inlet pipe body 12 for airtightness.

The pressure adjustment device for high-pressure fluid disclosed in the present invention, when the high-pressure is adjusted to the low-pressure, the fluid will instantaneously flow out between the accommodating groove 751 of the valve 75 and the movable tube 72 to release the pressure.

9: Pressure reducing valve 90: inlet pipe 91: Inlet 92: Valve 93: Intermediate tube body 911: Inflow spring 931: decompression spring 94: Move the tube 11: Main tube body 12: Inflow pipe body 13: Outflow cylinder 14: Bridging the tube body 16: the first elastomer 17: Inflow adjustment department 42: ring groove 32: Channel 71: Sliding Department 72: Move the tube 73: Start the tube 74: Linkage Department 75: Valve 76: second elastomer 711: open 712: long and narrow opening 721: Embedding Opening 731: Spiral groove 751: Containment Groove 34: The first torus 341: The first positioning groove 342: third elastomer 343: locating tip 7321: second positioning groove 734: first mark 111: second mark

Figure 1 is a perspective view of a preferred embodiment of the creation. Figure 2 is an exploded perspective view of a preferred embodiment of the creation. Fig. 3 is an exploded perspective view of Fig. 2 in another direction. Fig. 4 is a cross-sectional view of Fig. 1 in the direction 4-4. Fig. 5 is a cross-sectional view of Fig. 1 in the direction of 5-5. Fig. 6 is a cross-sectional view of a valve of Fig. 4 closing an opening at one end of a bridging pipe body. Figure 7 is a three-dimensional view of a starter tube of a preferred embodiment of the creation. Fig. 8 is a cross-sectional view of Fig. 4 in the direction 8-8. Figure 9 is a cross-sectional view of a conventional pressure reducing valve.

11: Main tube body

12: Inflow pipe body

14: Bridging the tube body

16: the first elastomer

17: Inflow adjustment department

42: ring groove

32: Channel

71: Sliding Department

72: Move the tube

73: Start the tube

74: Linkage Department

75: Valve

76: second elastomer

711: open

721: Embedding Opening

731: Spiral groove

751: Containment Groove

34: The first torus

341: The first positioning groove

342: third elastomer

343: locating tip

7321: second positioning groove

Claims (6)

A pressure adjusting device for high-pressure fluid, which at least includes: A main pipe body; An inlet pipe body, one end of which is connected to the inner side of one end of the main pipe body in an air-tight sleeve at one end peripheral side, and the inlet pipe body is used for receiving a high-pressure fluid; An outflow cylinder, one end of which is air-tightly sheathed and fixed to the inner side of the other end of the main tube; A bridging pipe body, which is arranged inside the main pipe body and located between the inlet pipe body and the outflow cylinder, one end of the bridging pipe body is air-tightly sheathed at the other end of the inlet pipe body On the inside, one end of the bridging pipe body can reciprocately move and communicate with the inlet pipe body, the other end of the bridging pipe body is air-tightly sheathed inside the main pipe body, and the other end of the bridging pipe body can be Reciprocatingly move and communicate with the main pipe body, the cross section of the other end of the bridging pipe body is set as an annular groove adjacent to the outer end of the outflow cylinder, so that when the bridging pipe body abuts against the outflow cylinder , There is a gap between the bridging pipe body and the outflow cylinder, and the annular groove is connected to the bridging pipe body; Wherein, the peripheral side of the outflow cylinder is provided with at least one channel penetrating both ends of the outflow cylinder to communicate with the annular groove for receiving fluid from the inlet pipe body and the bridging pipe body and outputting the fluid to At the other end of the outflow cylinder, a first elastic system is provided between the inlet tube and the bridge tube body to apply a first elastic force to the bridge tube toward the outflow cylinder. The first elastic force is used to oppose the fluid exerting force on the bridging tube body at the position of the annular groove; An inlet adjusting part, which is arranged between the inlet pipe body and the outlet cylinder body, and includes a sliding part, a moving pipe body, a starting pipe body, a linkage part, a valve and a second Elastomer The sliding part is an elongated groove in the longitudinal direction of the middle section of the outflow cylinder, one end of which has an opening corresponding to the annular groove, and the other end of which has two long and narrow openings extending in the transverse direction ； The moving pipe system is movably arranged in the sliding part, and the peripheral side of the middle part is air-tightly sheathed inside one end of the sliding part, one end of which corresponds to the bridging pipe body and the inside of the inlet pipe body, and the other One end corresponds to the two long and narrow openings and is provided with two opposite embedding openings; The starting pipe system is pivotally connected to the outflow cylinder through a sleeve corresponding to the two long and narrow openings, and a spiral groove is provided in the middle section of the inner side of the starting pipe; The middle part of the linkage portion is inserted through the two long narrow openings and the two embedding openings, the two ends of the linkage portion are exposed to the two long narrow openings, and the two ends of the linkage portion are attached to the spiral groove of the activation tube body Driven by the activation tube, the moving tube can reciprocately move between a first position and a second position in the long axis direction; The valve is corresponding to one end of the bridging pipe body and is arranged inside the inlet pipe body for opening and closing the opening of one end of the bridging pipe body, and a receiving groove is provided in the middle section of the valve for attaching to one end of the moving pipe body; The second elastic system is arranged between the valve and the inlet pipe body to apply a second elastic force to the valve in the direction of the bridging pipe body, so that the valve is positioned at the time when the valve is driven by the moving pipe body. The distance between the valve and the bridging pipe body is changed between a third position and a fourth position. The pressure adjusting device for high-pressure fluid according to claim 1, wherein one end of the movable tube body is attached to the bottom surface of the receiving groove. The pressure adjusting device for high-pressure fluid according to claim 1, wherein a first annular surface is provided on the outer side of the outflow cylinder, and a second annular surface is provided on the inner side of one end of the activation tube corresponding to the first circular surface. Torus The first annular surface is provided with a first positioning groove for receiving a third elastic body and a positioning pin. One end of the third elastic body is attached to the first positioning groove, and the other end of the third elastic body is attached to the first positioning groove. Attached to the positioning tip and used for imparting a third elastic force to the positioning tip toward the second annular surface; The second annular surface is provided with a plurality of second positioning grooves arranged at intervals for accommodating part of the positioning pins, and then positioning the activation tube body, the linkage part, the moving tube body and the valve. The pressure adjusting device for high-pressure fluid according to claim 2, wherein a first annular surface is provided on the outside of the outflow cylinder, and a second annular surface is provided on the inner side of one end of the activation tube corresponding to the first annular surface. Torus The first annular surface is provided with a first positioning groove for receiving a third elastic body and a positioning pin, one end of the third elastic body is attached to the bottom surface of the first positioning groove, and the other end of the third elastic body Is attached to the positioning tip and used to apply a third elastic force to the positioning tip toward the second annular surface; The second annular surface is provided with a plurality of second positioning grooves arranged at intervals for accommodating part of the positioning pins, and then positioning the activation tube body, the linkage part, the moving tube body and the valve. The pressure adjusting device for high-pressure fluid according to claim 1 or 2, wherein the outer side of the activation tube is provided with a first mark, and the outer side of the main tube is provided with a plurality of second marks arranged at intervals to correspond to The first mark displays the output pressure of the fluid. The pressure adjusting device for high-pressure fluid according to claim 3 or 4, wherein the outer side of the activation tube is provided with a first mark, and the outer side ring of the main tube is provided with a plurality of second marks arranged at intervals to correspond to The first mark shows the output pressure of the fluid and one of the second positioning grooves is the positioning pin of the accommodating part.

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