CN216344191U

CN216344191U - Stacked pressure reducing valve

Info

Publication number: CN216344191U
Application number: CN202122772257.7U
Authority: CN
Inventors: 赵万玉
Original assignee: Huai'an Tanner Hydraulic Machinery Co ltd
Current assignee: Huai'an Tanner Hydraulic Machinery Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-04-19
Anticipated expiration: 2031-11-12

Abstract

The utility model discloses a stacked pressure reducing valve, which relates to the field of pressure reducing valves and comprises a valve body, an oil inlet, an oil outlet and connecting holes, wherein the upper surface of the valve body is provided with the oil inlet; this is novel when opening or being closed suddenly with solving the valve body, fluid forms the hydraulic shock phenomenon in the pipeline, and the hydraulic shock phenomenon can vibrate to on will vibrating transmitting the valve body, and two sets of relief pressure valve stack departments only connect fixedly through the bolt, and the bolt of stack department can take place to become flexible under the effect of vibration, thereby leads to relief pressure valve stack department to take place the oil leak phenomenon.

Description

Stacked pressure reducing valve

Technical Field

The utility model relates to a pressure reducing valve, in particular to a superposition type pressure reducing valve.

Background

The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure through regulation and leads the outlet pressure to be automatically kept stable by relying on the energy of the medium. 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. Then, the fluctuation of the pressure behind the valve is balanced with the spring force by means of the regulation of the control and regulation system, so that the pressure behind the valve is kept constant within a certain error range.

When the valve body is suddenly opened or closed, hydraulic impact is formed in a pipeline by oil, the hydraulic impact can vibrate and is transmitted to the valve body, the superposed positions of the two groups of pressure reducing valves are only connected and fixed through bolts, and the bolts at the superposed positions can loosen under the action of vibration, so that the superposed positions of the pressure reducing valves have oil leakage.

SUMMERY OF THE UTILITY MODEL

For solving above-mentioned technical problem, provide and a stack formula relief pressure valve, this technical scheme has solved when the valve body is opened suddenly or is closed, and fluid forms the hydraulic shock phenomenon in the pipeline, and the hydraulic shock phenomenon can produce the vibration to on transmitting the valve body with the vibration, and two sets of relief pressure valve stack departments are only connected fixedly through the bolt, and the bolt of stack department can be not hard up under the effect of vibration, thereby leads to the problem that relief pressure valve stack department takes place the oil leak phenomenon.

In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows:

the utility model provides a stack formula relief pressure valve, includes valve body, oil inlet, oil-out and connecting hole, the valve body upper surface is equipped with the oil inlet, the terminal surface of valve body one end is equipped with the oil-out, the connecting hole has all been seted up to the edge of valve body upper surface, the fixed welding of edge of valve body upper surface has the connection slide, the connection spout has all been seted up to the bottom on valve body both sides wall surface, it slides with the connection slide to connect the spout and links to each other, the one end that the oil inlet was kept away from to the connection slide runs through and has seted up the spliced eye, the activity of spliced eye inner chamber is pegged graft and is had the gag lever post, the gag lever post constitutes rectangular structure with being connected the slide.

As a preferable technical scheme, mounting holes are formed in the surfaces of the two ends of the limiting rod and the top surface of the end, far away from the oil inlet, of the connecting sliding seat in a penetrating mode, and mounting bolts are inserted into inner cavities of the mounting holes.

As a preferred technical scheme of the utility model, the end face of the other end of the valve body is connected with an adjusting seat, and the middle part of the surface of one end of the adjusting seat, which is far away from the valve body, is in threaded connection with an adjusting screw shaft.

As a preferred technical scheme of the utility model, one end of the adjusting screw shaft, which is far away from the valve body, is sleeved with a bearing, the outer side of the bearing is sleeved with a positioning ring, and the surface of the outer wall of the bearing is connected with the inner wall of the positioning ring through a support in a welding manner.

As a preferable technical scheme of the utility model, a left guide seat is welded on the surface of one side of the adjusting seat, a guide rod is movably inserted in an inner cavity of the left guide seat in a penetrating manner, and the top of the guide rod is welded and connected with the lower surface of the positioning ring.

As a preferable technical scheme, the right guide seat is welded on the surface of the other side of the adjusting seat, a graduated scale is printed on one side of the right guide seat and is located on the surface of the other side of the adjusting seat, an indicating rod is movably inserted into an inner cavity of the right guide seat, and the top of the indicating rod is welded and connected with the lower surface of the positioning ring.

Compared with the prior art, the utility model has the beneficial effects that: the gag lever post constitutes the rectangle structure with being connected the slide, the mounting hole has all been run through to gag lever post both ends surface and the one end top surface of connecting the slide and keeping away from the oil inlet, the mounting hole intracavity is pegged graft and is had mounting bolt, inject the gag lever post in the spliced eye, the gag lever post both ends pass through mounting bolt and are connected the slide both ends and link to each other, the rectangle structure can carry on spacingly to last group valve body bottom, two sets of valve body stack department joint strength of promotion that can be further prevents that valve body stack department from taking place the oil leak phenomenon.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the connecting chute of the present invention;

FIG. 3 is a schematic view of the installation structure of the guide bar of the present invention;

FIG. 4 is a schematic view of the structure of the indicating rod of the present invention;

fig. 5 is a schematic view of the structure of the novel limiting rod.

The reference numbers in the figures are:

1. a valve body; 101. an oil inlet; 102. an oil outlet; 103. connecting holes;

2. connecting the sliding seat; 201. connecting the sliding chute; 202. inserting holes; 203. a limiting rod; 204. mounting holes; 205. installing a bolt;

3. an adjusting seat; 301. adjusting the screw shaft; 302. a bearing; 303. a positioning ring; 304. a left guide seat; 305. a guide bar; 306. a right guide seat; 307. an indication lever; 308. a graduated scale.

Detailed Description

The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

Referring to fig. 1-5, a stacked pressure reducing valve comprises a valve body 1, an oil inlet 101, an oil outlet 102 and connecting holes 103, wherein the upper surface of the valve body 1 is provided with the oil inlet 101, the end surface of one end of the valve body 1 is provided with the oil outlet 102, the corners of the upper surface of the valve body 1 are respectively provided with the connecting holes 103, when two groups of valve bodies 1 are stacked, firstly, a limiting rod 203 is disassembled, one end of the lower surface of one group of valve bodies 1 is slidably connected with a connecting slide seat 2 on the upper surface of the other valve body 1 through a connecting chute 201, after the valve bodies are moved in place, the upper group of valve bodies 1 is in threaded connection with the connecting holes 103 of the lower group of valve bodies 1 through a countersunk spiral ring, so that the two groups of valve bodies 1 can be rapidly stacked, the connecting slide seat 2 is fixedly welded at the edge of the upper surface of the valve body 1, the bottom of the two side wall surfaces of the valve body 1 are respectively provided with the connecting chutes 201, the connecting chutes 201 are slidably connected with the connecting slide seat 2, connect the one end that slide 2 kept away from oil inlet 101 and run through and seted up spliced eye 202, spliced eye 202 inner chamber activity is pegged graft and is had gag lever post 203, gag lever post 203 constitutes the rectangular structure with being connected slide 2, gag lever post 203 both ends surface all runs through with the one end top surface of connecting slide 2 and keeping away from oil inlet 101 and has seted up mounting hole 204, the mounting hole 204 inner chamber is pegged graft and is had mounting bolt 205, inject gag lever post 203 in spliced eye 202, gag lever post 203 both ends are passed through mounting bolt 205 and are connected 2 both ends of slide and link to each other, gag lever post 203 constitutes the rectangular structure with connecting slide 2, the rectangular structure can carry on spacingly to the 1 bottom of the valve body of last group, can further promote two sets of 1 stack department joint strength of valve body, prevent that 1 stack department of valve body from taking place the oil leak phenomenon.

The end face of the other end of the valve body 1 is connected with an adjusting seat 3, the middle part of the surface of one end of the adjusting seat 3, which is far away from the valve body 1, is in threaded connection with an adjusting screw shaft 301, the adjusting screw shaft 301 can compress a supporting spring in the inner cavity of the valve body 1 under the action of surface threads so as to realize the adjustment of oil outlet pressure, one end of the adjusting screw shaft 301, which is far away from the valve body 1, is sleeved with a bearing 302, the outer side of the bearing 302 is sleeved with a positioning ring 303, the outer wall surface of the bearing 302 is connected with the inner wall of the positioning ring 303 through a bracket in a welding manner, a left guide seat 304 is welded on the surface of one side of the adjusting seat 3, a guide rod 305 is movably inserted in the inner cavity of the left guide seat 304, when the guide rod 305 is driven by the positioning ring 303 to go up and down, the left guide seat 304 can play a role in guiding the guide of the guide rod 305, the top of the guide rod 305 is connected with the lower surface of the positioning ring 303 in a welding manner, and a right guide seat 306 is welded on the other side surface of the adjusting seat 3, the scale 308 is printed on one side of the right guide seat 306, the scale 308 is located on the surface of the other side of the adjusting seat 3, the indicating rod 307 is movably inserted into the inner cavity of the right guide seat 306, the top of the indicating rod 307 is connected with the lower surface of the positioning ring 303 in a welding mode, one side of the bottom surface of the positioning ring 303 is connected with the top of the guiding rod 305 in a welding mode, the top of the positioning ring 303 is movably inserted into the inner cavity of the left guide seat 304 in a welding mode, the inner wall of the positioning ring 303 is connected with the outer wall of the bearing 302 in a welding mode through a support, therefore, when the adjusting screw shaft 301 rotates, the positioning ring 303 can be kept in a static state, the adjusting screw shaft 301 enters the inner cavity of the valve body 1 under the effect of threads after rotating, the indicating rod 307 can be synchronously driven by the positioning ring 303 to move, and the oil outlet pressure of the valve body 1 can be accurately adjusted by observing the moving distance of an indicating needle at one end of the indicating rod 307 on the scale 308.

The working principle is as follows: inserting a limit rod 203 into the inserting hole 202, connecting two ends of the limit rod 203 with two ends of a connecting slide seat 2 through a mounting bolt 205, wherein the limit rod 203 and the connecting slide seat 2 form a rectangular structure which can limit the bottom of an upper group of valve bodies 1 and further improve the connection strength of the superposition part of the two groups of valve bodies 1 to prevent oil leakage at the superposition part of the valve bodies 1, by rotating an adjusting screw shaft 301, the adjusting screw shaft 301 can compress a supporting spring in the inner cavity of the valve body 1 under the action of surface threads, one side of the bottom surface of a positioning ring 303 is welded with the top of a guide rod 305, the top of the positioning ring 303 is movably inserted in the inner cavity of a left guide seat 304, the inner wall of the positioning ring 303 is welded with the outer wall of a bearing 302 through a bracket, so that the positioning ring 303 can be kept in a static state when the adjusting screw shaft 301 rotates, and the adjusting screw shaft 301 enters the inner cavity of the valve body 1 under the action of threads, the indicator rod 307 can be moved synchronously by the positioning ring 303.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a stack formula relief pressure valve, includes valve body (1), oil inlet (101), oil-out (102) and connecting hole (103), valve body (1) upper surface is equipped with oil inlet (101), the terminal surface of valve body (1) one end is equipped with oil-out (102), connecting hole (103), its characterized in that have all been seted up to the edge of valve body (1) upper surface: the edge fixed welding of valve body (1) upper surface has connection slide (2), connection spout (201) have all been seted up to the bottom on valve body (1) both sides wall surface, it slides with connection slide (2) and links to each other to connect spout (201), the one end of keeping away from oil inlet (101) of connection slide (2) runs through and has seted up spliced eye (202), spliced eye (202) inner chamber activity is pegged graft and is had gag lever post (203), gag lever post (203) constitutes rectangular structure with being connected slide (2).

2. A stack pressure relief valve as claimed in claim 1, wherein: the oil inlet (101) is kept away from to gag lever post (203) both ends surface and connection slide (2) one end top surface have all run through and have seted up mounting hole (204), mounting hole (204) inner chamber is pegged graft and is had mounting bolt (205).

3. A stack pressure relief valve as claimed in claim 1, wherein: the terminal surface of the other end of valve body (1) is connected with adjusts seat (3), it has regulation screw spindle (301) to adjust seat (3) and keep away from the surperficial middle part screw thread connection of one end of valve body (1).

4. A stack pressure relief valve as claimed in claim 3, wherein: one end of the adjusting screw shaft (301) far away from the valve body (1) is sleeved with a bearing (302), the outer side of the bearing (302) is sleeved with a positioning ring (303), and the surface of the outer wall of the bearing (302) is connected with the inner wall of the positioning ring (303) in a welding mode through a support.

5. A stack pressure relief valve as claimed in claim 3, wherein: the surface welding of adjusting seat (3) one side has left side guide holder (304), the activity of left side guide holder (304) inner chamber is run through and is pegged graft there is guide bar (305), guide bar (305) top and holding ring (303) lower surface welding link to each other.

6. The stack pressure reducing valve according to claim 5, wherein: the welding of regulation seat (3) opposite side surface has right side guide holder (306), right side guide holder (306) one side printing has scale (308), and scale (308) are located the surface of adjusting seat (3) opposite side, the activity of right side guide holder (306) inner chamber is pegged graft and is had instruction pole (307), instruction pole (307) top links to each other with holding ring (303) lower surface welding.