CN216590132U - Pressure reducing valve capable of setting pressure limiting - Google Patents

Abstract

The utility model discloses a pressure reducing valve capable of setting pressure limit, including the water inlet end, go out the water end, middle part disk seat, the filter plate, the filtration pore, adjust the main shaft, spacing mounting disc, the adjusting button, the pivot, but the telescopic link, the gear, tooth's socket and cardboard, through water inlet end, go out the water end, middle part disk seat, the filter plate, the filtration pore, when fluid flows in from the water inlet end, filter through filter plate and filtration pore at first, avoid impurity to enter into the middle part disk seat, can select filtration pore and filter plate of different specifications to weld according to the difference of fluid simultaneously and use, avoid impurity to produce harmful effects to the operation of valve clack after entering; through adjusting main shaft, spacing mounting disc, adjusting button, pivot, telescopic link, gear, tooth's socket, cardboard to separate the spring for the compression stroke that receives of spring lower part reduces, adjusts the elasticity of spring with this, and it is spacing to the rising of valve clack under the effect of bottom gag lever post simultaneously, and it is spacing to accomplish pressure.

Description

Pressure reducing valve capable of setting pressure limiting

Technical Field

The utility model relates to a relief pressure valve technical field specifically is a can set for relief pressure valve of voltage limiting.

Background

The industrialization is deepened continuously, the scale is enlarged continuously, various equipment fittings are perfected continuously, in industrial application, various pipelines which are frequently used for fluid transportation are adopted, in the use of industrial pipelines, a valve body is indispensable, and a pressure reducing valve is one of important components.

The pressure reducing valve is a valve that reduces the inlet pressure to a desired outlet pressure by regulation, and automatically maintains the outlet pressure at a constant level by the energy of the medium itself. From the viewpoint of hydrodynamics, the pressure reducing valve is a throttling element with variable local resistance, namely, the flow speed and the kinetic energy of fluid are changed by changing the throttling area to cause different pressure losses, thereby achieving the purpose of pressure reduction.

In the use of relief pressure valve, if there is impurity in the fluid, thereby will influence the removal of valve clack and influenced the pressure regulation effect to the pressure of current most relief pressure valves can't be injectd in certain extent, can't satisfy multiple demand.

Disclosure of Invention

In view of the problems in the prior art, the utility model discloses a pressure reducing valve capable of setting the pressure limit, which adopts the technical proposal that the pressure reducing valve comprises a water inlet end, a water outlet end, a middle valve seat, a filtering part, a base, a valve clack, a fixed plate, a spring, an adjusting main shaft, a limiting installation plate, a guide post, a limiting structure and a transmission structure, wherein the water inlet end and the water outlet end are respectively fixed at the left end and the right end of the middle valve seat and are fixed in a welding way, the base is arranged at the bottom of the middle valve seat, the filtering part is arranged in the water inlet end and filters the fluid entering from the water inlet end to avoid the impurities entering into the valve seat to cause the influence on the operation of the valve clack, the valve clack is arranged in the middle valve seat, the spring is fixedly connected above the valve rod, the upper part of the spring is connected below the fixed plate, the top end of the adjusting main shaft extends out, the lower part passes through the fixed plate and is arranged at the center of the spring, adjust main shaft lower part screw-thread fit and have spacing mounting disc, through at the fixed guide post of fixed plate lower extreme, and make the guide post pass spacing mounting disc, make when rotating the adjustment main shaft, spacing mounting disc can not rotate along with it, but goes up and down along adjusting the main shaft, the bottom and the adjustment main shaft level of guide post, maintain the uniformity of stroke, set up limit structure on the spacing mounting disc and drive under the transmission structure effect by manual mode, can drive limit structure after adjusting the position of spacing mounting disc, make it be in the pressure limit position of needs and carry on spacingly.

As an optimal technical scheme of the utility model, the filter house includes the filter plate, filtration pore and collecting pipe, it is provided with the filter plate to intake the end slope, the filter plate is evenly opened there is the filtration pore, fluid to the process is filtered, the different filter plate of filtration pore specification is selected according to fluidic difference and is welded, the filter plate is located and intakes the different filter plates of end one side below screw in and has the collecting pipe, guide after the filter plate filters impurity and get into down and collect in the collecting pipe, be convenient for in time clear up, collecting pipe bottom mounting knob, manual the knob of snatching when needing to clear up rotates it, take out it.

As a preferred technical scheme of the utility model, limit structure includes bottom gag lever post, adjusting knob and cardboard, four bottom gag lever posts of spacing mounting disc bottom evenly distributed can carry on spacingly to the valve clack at the in-process that rises, maintain the pressure setting of position, the side sets up the cardboard about the spacing mounting disc, the cardboard is stretched out and drawn back by adjusting knob and drive structure drive, make it separate the spring when stretching out its operation, reduce the spring stroke promptly in order to realize the regulation to spring force.

As an optimal technical scheme of the utility model, the transmission structure includes the pivot, but the telescopic link, gear and tooth's socket, cardboard one side is opened there is the tooth's socket, be provided with gear and tooth's socket meshing in the spacing mounting disc, but the gear top is connected with the pivot through the telescopic link, because spacing mounting disc will go up and down along adjusting the main shaft, consequently, when it is at the lift in-process, its upper portion coupling part will shrink, consequently, adopt the cross-section to be the scalable pole of rectangle to guarantee also to make the gear rotate along with the rotation of pivot when connecting, fixed adjusting knob in the pivot.

As an optimized technical scheme of the utility model, the sealing ring has under the valve clack.

The utility model has the advantages that: through the water inlet end, the water outlet end, the middle valve seat, the filter plate and the filter holes, when fluid flows in from the water inlet end, the fluid is firstly filtered through the filter plate and the filter holes, so that impurities are prevented from entering the middle valve seat, meanwhile, the filter holes and the filter plates with different specifications can be selected according to different fluids for welding use, and adverse effects on the operation of the valve clack after the impurities enter are avoided; through adjusting main shaft, spacing mounting disc, adjusting knob, pivot, telescopic link, gear, tooth's socket, cardboard and separating the spring for the compression stroke of spring lower part reduces, adjusts the elasticity of spring with this, and is spacing to the rising of valve clack under the effect of bottom gag lever post simultaneously, and it is spacing to accomplish pressure.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the partial cross-sectional structure of the present invention.

Fig. 3 is a schematic structural diagram of a part of the components of the present invention.

In the figure: the water inlet end 1, the water outlet end 2, the middle valve seat 3, the filter plate 101, the filter hole 102, the base 4, the collecting pipe 5, the valve clack 6, the fixing plate 7, the spring 8, the adjusting main shaft 9, the limiting mounting disc 10, the guide column 11, the bottom limiting rod 111, the adjusting button 12, the rotating shaft 121, the telescopic rod 122, the gear 123, the tooth socket 124 and the clamping plate 13.

Detailed Description

As shown in figures 1 to 3, the utility model discloses a pressure reducing valve capable of setting pressure limit, which adopts the technical proposal that the pressure reducing valve comprises a water inlet end 1, a water outlet end 2, a middle valve seat 3, a filtering part, a base 4, a valve clack 6, a fixing plate 7, a spring 8, an adjusting main shaft 9, a limiting mounting disc 10, a guide post 11, a limiting structure and a transmission structure, wherein the water inlet end 1 and the water outlet end 2 are respectively fixed at the left end and the right end of the middle valve seat 3 in a welding mode, the base 4 is arranged at the bottom of the middle valve seat 3, the filtering part is arranged in the water inlet end 1, the entering fluid can be preliminarily filtered to avoid the entering of impurities, the valve clack 6 is arranged in the middle valve seat 3, the spring 8 is fixedly connected above through a valve rod, the upper end of the spring 8 is connected to the lower surface of the fixing plate 7, the top end of the adjusting main shaft 9 extends out, the lower part passes through the fixing plate 7 and is arranged at the center of the spring 8, adjusting 9 lower parts of main shaft screw-thread fit and having spacing mounting disc 10, fixed plate 7 lower extreme is fixed with guide post 11, and guide post 11 passes spacing mounting disc 10 to this sets up and avoids spacing mounting disc 10 to rotate, but goes up and down under the screw fit, and the bottom of guide post 11 keeps the same stroke with adjusting 9 levels of main shaft, sets up limit structure on the spacing mounting disc 10 and is driven under the transmission structure effect by manual mode.

As an optimal technical scheme of the utility model, the filter house includes filter plate 101, filtration pore 102 and collecting pipe 5, and the slope is provided with filter plate 101 in the end 1 of intaking, and filter plate 101 has evenly opened filtration pore 102, according to the user demand of difference, selects the filtration pore 102 and the filter plate 101 of different specifications to weld the use, and filter plate 101 is located the 1 one side below screw in of end of intaking and has collecting pipe 5, and collecting pipe 5 bottom mounting knob, manual rotation can get out the clearance to the impurity of collecting in the collecting pipe 5.

As the utility model discloses an optimal technical scheme, limit structure includes bottom gag lever post 11, adjusting button 12 and cardboard 13, four bottom gag lever posts 11 of spacing mounting disc 10 bottom evenly distributed, and the side sets up cardboard 13 about spacing mounting disc 10, and cardboard 13 is stretched out and drawn back by adjusting button 12 and transmission structure drive, can separate spring 8 after stretching out.

As a preferred technical scheme of the utility model, transmission structure includes pivot 121, scalable pole 122, gear 123 and tooth's socket 124, cardboard 13 one side is opened there is tooth's socket 124, be provided with gear 123 and tooth's socket 124 meshing in the spacing mounting disc 10, but gear 123 top is connected with pivot 121 through scalable pole 122, fixed adjusting knob 12 in the pivot 121, because the lift characteristic of spacing mounting disc 10, consequently on it and the pivot 121 between the connection structure will have the concertina property and adopt the synchronous rotation of rectangular cross section's scalable pole 122 simultaneously.

As an optimized technical proposal of the utility model, a sealing ring is arranged under the valve clack 6.

The utility model discloses a theory of operation: when the device is used, fluid enters from the water inlet end 1, impurities are filtered through the filter plate 101 and the filter holes 102, the impurities are prevented from entering the middle valve seat 3 and causing adverse effects on the operation of the valve clack 6 in the middle valve seat, the impurities are guided to enter the collecting pipe 5 under the inclined guide after being filtered, the impurities are convenient to clean at the later stage, the impurities can be taken out and conveniently cleaned in time by rotating a knob at the bottom of the collecting pipe 5, for the adjustment and the limitation of pressure, the limiting mounting disc 10 in threaded fit can move up and down under the fit of the guide column 11 by rotating the adjusting main shaft 9, the adjusting knob 12 is rotated after the limiting mounting disc moves to a proper position, the final driving gear 123 rotates, the clamping plate 13 extends outwards under the meshing action of the tooth grooves 124, the stroke of the spring 8 is blocked, the elasticity below the spring 8 is adjusted, and the bottom limiting rod 111 is fixed on the bottom surface of the limiting mounting disc 10, the lifting of the valve flap 6 can be limited.

Components not described in detail herein are prior art.

Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge range of those skilled in the art, and modifications or variations without creative efforts are still within the scope of the present invention.

Claims (5)

1. A pressure relief valve capable of setting a pressure limit, characterized by: the water-saving filter comprises a water inlet end (1), a water outlet end (2), a middle valve seat (3), a filtering part, a base (4), a valve flap (6), a fixing plate (7), a spring (8), an adjusting main shaft (9), a limiting mounting plate (10), a guide post (11), a limiting structure and a transmission structure; the left end and the right end of the middle valve seat (3) are respectively fixed with a water inlet end (1) and a water outlet end (2); a base (4) is arranged at the bottom of the middle valve seat (3); a filtering part is arranged in the water inlet end (1); the middle valve seat (3) is provided with a valve clack (6); the valve clack (6) is installed through a valve rod, and a spring (8) is fixedly connected above the valve clack; the top end of the adjusting main shaft (9) extends out, and the lower part of the adjusting main shaft penetrates through the fixing plate (7) and is arranged at the center of the spring (8); the lower part of the adjusting main shaft (9) is in threaded fit with a limiting mounting disc (10); a guide post (11) is fixed at the lower end of the fixed plate (7); the guide column (11) penetrates through the limiting mounting disc (10), and the bottom of the guide column is horizontal to the adjusting main shaft (9); the limiting mounting disc (10) is provided with a limiting structure and is driven by a manual mode under the action of a transmission structure.

2. A pressure relief valve capable of setting a pressure limit as defined in claim 1, wherein: the filter part comprises a filter plate (101), a filter hole (102) and a collecting pipe (5); a filter plate (101) is obliquely arranged in the water inlet end (1); the filter plates (101) are uniformly provided with filter holes (102); a collecting pipe (5) is screwed in the lower part of the filter plate (101) at one side of the water inlet end (1); the bottom end of the collecting pipe (5) is fixed with a knob.

3. A pressure relief valve capable of setting a pressure limit as defined in claim 1, wherein: the limiting structure comprises a bottom limiting rod (111), an adjusting button (12) and a clamping plate (13); four bottom limiting rods (111) are uniformly distributed at the bottom of the limiting mounting disc (10); clamping plates (13) are arranged on the left side and the right side of the limiting mounting disc (10); the clamping plate (13) is driven by the adjusting button (12) and the transmission structure to stretch and retract.

4. A pressure relief valve capable of setting a pressure limit as claimed in claim 3, wherein: the transmission structure comprises a rotating shaft (121), a telescopic rod (122), a gear (123) and a tooth groove (124); one side of the clamping plate (13) is provided with a tooth groove (124); a gear (123) is arranged in the limiting mounting disc (10) and meshed with the tooth groove (124); the upper part of the gear (123) is connected with the rotating shaft (121) through a telescopic rod (122); and the rotating shaft (121) is fixedly provided with an adjusting button (12).

5. A pressure relief valve capable of setting a pressure limit as defined in claim 1, wherein: and a sealing ring is arranged below the valve clack (6).

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