CN210423878U

CN210423878U - Differential pressure combination valve

Info

Publication number: CN210423878U
Application number: CN201920774784.1U
Authority: CN
Inventors: 马明; 马勇; 马龙
Original assignee: Yueqing Weilong Mining Equipment Co Ltd
Current assignee: Yueqing Weilong Mining Equipment Co Ltd
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-04-28
Anticipated expiration: 2029-05-27

Abstract

The utility model discloses a differential pressure combination valve, including the valve body and with valve body one side threaded connection's socket joint, the valve body is provided with the locking subassembly that is used for fixed socket joint towards one side of socket joint, locking subassembly is including setting up respectively in the fixed plate of socket joint both sides, the fixed plate is connected with fixed spring towards one side middle part of socket joint, fixed spring is connected with the fixed arc board of hugging closely socket joint one side towards one side of socket joint. After the socket joint is installed, the fixed spring gives a jacking force to the fixed arc plate, so that the fixed arc plate jacks the side wall of the socket joint, the socket joint is prevented from loosening, and time and labor are saved.

Description

Differential pressure combination valve

Technical Field

The utility model relates to a technical field of combination valve, in particular to differential pressure combination valve.

Background

The differential pressure valve chamber drives the slide bar to move up and down through the change of the difference value of the input oil pressure signal, thereby changing the opening of the valve and playing a role in regulating the oil pressure. The differential pressure combination valve comprises a valve body, a valve core, a valve seat and an ejector rod, wherein the valve core, the valve seat and the ejector rod are arranged in the valve body, a liquid inlet cavity is formed in the valve seat, and the head of the ejector rod is inserted into the liquid inlet cavity of the valve seat to act with the valve core.

Chinese patent No. CN205618463U discloses a differential pressure combination valve, which comprises a valve body, a valve seat, and a push rod, wherein the valve seat and the push rod are disposed in a valve cavity of the valve body, an end sleeve joint abutting against the valve seat is connected in the valve body via internal threads, a valve core is slidably sleeved between the end sleeve joint and the valve seat, the valve seat is provided with a first valve port, the end sleeve joint is provided with a second valve port, and the valve body is provided with an oil feeding hole; the valve core and the end sleeve joint are provided with a spring for driving the valve core to abut against and seal the first valve port, and the ejector rod points to the first valve port and drives the valve core to compress the spring; the valve core seals the first valve port in an abutting mode, and the oil feeding hole is communicated with the second valve port; the first valve port is ejected by the ejector rod, the first valve port, the second valve port and the oil feeding hole are communicated with each other, a first side hole and a second side hole which are communicated with the oil feeding hole are formed in the side wall of the end sleeve joint, and the oil feeding hole, the second side hole and the second valve port are communicated with each other normally. The first valve port of the differential pressure combination valve is sealed under the action of a spring, and the oil feeding hole and the second valve port are respectively connected with the rodless cavity and the rod cavity of the oil cylinder, so that the pressure maintaining action of the oil cylinder is realized. After the first valve port is opened by the ejector rod, oil in the rod cavity enters the rodless cavity from the oil feeding hole through the second valve port, and rapid differential pressure is achieved.

However, the differential pressure combination valve has the following defects: the end sleeve joint is in threaded connection with the valve body, and the end sleeve joint is easy to loosen in operation, so that the normal operation of the differential pressure combination valve is influenced, and therefore improvement is needed.

SUMMERY OF THE UTILITY MODEL

To the technical defect, the utility model aims at providing a differential pressure combination valve, it is stable to cup joint the connection, and difficult not hard up.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a differential pressure combination valve, include the valve body and with valve body one side threaded connection's socket joint, one side that the valve body was cup jointed is provided with the locking subassembly that is used for fixed socket joint, locking subassembly is including setting up the fixed plate in socket joint both sides respectively, the fixed plate is connected with fixed spring towards one side middle part of socket joint, fixed spring is connected with the fixed arc board of hugging closely socket joint one side towards one side of socket joint.

Through adopting above-mentioned technical scheme, will cup joint after the installation, fixed spring gives a tight power in top of fixed arc board to make fixed arc board will cup joint the tight in top of a lateral wall, thereby prevent to cup joint not hard up labour saving and time saving.

The utility model discloses further set up to: the fixed plate is towards the equal fixedly connected with fixed cylinder in both ends of one side of cup joint, the both ends fixedly connected with of fixed arc board towards one side of fixed plate wears to locate the guide bar in the fixed cylinder.

Through adopting above-mentioned technical scheme, the fixed cylinder can make the guide bar move for the fixed plate vertical migration all the time, therefore the guide bar at fixed arc board both ends can guarantee that fixed arc board can not take place crooked to can press from both sides the joint clamp tightly.

The utility model discloses further set up to: the both ends that the fixed plate deviates from one side of fixed arc board all rotate and are connected with the reference column, the lateral wall fixedly connected with location strip of the one end of fixed plate is kept away from to the reference column, the guide bar is provided with a plurality of confessions along the length direction interval and sets for the constant head tank that a location strip card was gone into.

Through adopting above-mentioned technical scheme, when need demolish the cup joint, push fixed arc board to the fixed plate, rotate the reference column after that, go into the constant head tank on the guide bar with the locating piece card to fix fixed arc board, conveniently demolish the cup joint.

The utility model discloses further set up to: and one side of the two fixed arc plates, which is tightly attached to the fixed arc plates, is fixedly connected with an elastic gasket.

Through adopting above-mentioned technical scheme, when fixed arc board top was tightly cup jointed the lateral wall, the elasticity gasket was hugged closely with cup jointing the lateral wall to prevent that fixed arc board from causing the mar in the cup jointing the outside.

The utility model discloses further set up to: two be provided with the connecting piece between the both ends of fixed arc board one side in opposite directions, the connecting piece includes the connecting plate with fixed arc board both ends fixed connection, two in opposite directions the one end that fixed arc board was kept away from to the connecting plate is connected with spacing ring and two holding rings respectively, the both sides that the spacing ring is carried on the back mutually are hugged closely with two holding rings respectively, be connected through fixing bolt and fixation nut between spacing ring and two holding rings.

Through adopting above-mentioned technical scheme, when two fixed arc boards hug closely in the joint both sides, go into two fixed intra-annular with the go-between card to pass fixing bolt and pass the holding ring and be connected with fixation nut, with two fixed arc board interconnect, thereby fixed arc board can hug closely all the time in the joint both sides, simultaneously, after the fixation nut of screwing, fixing bolt's one end can push up tightly the joint lateral wall, thereby further prevent that the joint is not hard up.

The utility model discloses further set up to: and a spring washer is sleeved between the fixing nut and the positioning ring of the fixing bolt.

Through adopting above-mentioned technical scheme, spring washer can give a tensile force of fixation nut for the pressure increase between fixation nut's the internal thread and the fixing bolt external screw thread, thereby increase the frictional force between fixation nut and the fixing bolt, prevent that fixation nut is not hard up.

The utility model discloses further set up to: and one end of each of the two fixing bolts, which faces the side wall of the sleeve joint, is connected with a limiting circular plate.

Through adopting above-mentioned technical scheme, spacing plectane is made by flexible material, screws up fixing bolt after, and spacing plectane supports tightly the coupling outside and takes place deformation, increase and the area of contact of coupling to increase frictional force prevents that the coupling from sliding.

The utility model discloses further set up to: the middle part of one side of the limiting circular plate, which faces the fixing bolt, is connected with a limiting cylinder in threaded connection with the limiting bolt.

By adopting the technical scheme, the limiting cylinder is rotated to be separated from the fixing bolt, so that the fixing bolt can be smoothly drawn out of the positioning ring; meanwhile, after the limiting circular plate is worn, the limiting cylinder can be replaced by detaching the limiting circular plate, so that time and labor are saved.

To sum up, the utility model discloses following beneficial effect has:

the setting of locking subassembly can prevent effectively that the coupling from becoming flexible to guarantee differential pressure combination valve normal operating.

Drawings

FIG. 1 is a schematic structural view of an embodiment;

fig. 2 is an exploded view of the anti-loosening assembly in the embodiment.

Description of reference numerals: 1. a valve body; 2. sleeving a joint; 3. a locking assembly; 31. a fixing plate; 32. fixing the spring; 33. fixing the arc plate; 331. an elastic pad; 34. a fixed cylinder; 35. a guide bar; 351. positioning a groove; 36. a positioning column; 37. a positioning bar; 4. a connecting member; 41. a connecting plate; 43. a limiting ring; 44. a positioning ring; 45. fixing the bolt; 46. fixing a nut; 47. a spring washer; 5. a limiting circular plate; 6. a limiting cylinder.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a differential pressure combination valve, as shown in figure 1, including valve body 1 and with the socket joint 2 of 1 one side threaded connection of valve body, one side that valve body 1 faced socket joint 2 is provided with the locking subassembly 3 that is used for fixed socket joint 2, the setting of locking subassembly 3 can prevent to cup joint 2 and take place not hard up, guarantees that differential pressure combination valve normally operates.

As shown in fig. 1 and fig. 2, the anti-loosening assembly 3 comprises fixing plates 31 respectively fixedly connected to two sides of the socket joint 2 in the horizontal direction, the fixing plates 31 are fixedly connected with fixing springs 32 towards the middle of one side of the socket joint 2, the fixing springs 32 are fixedly connected with fixing arc plates 33 tightly attached to one side of the socket joint 2, after the socket joint 2 is installed, the fixing springs 32 provide a tightening force for the fixing arc plates 33, so that the fixing arc plates 33 tightly press the side walls of the socket joint 2, and the socket joint 2 is prevented from loosening. An elastic pad 331 is fixedly connected to one side of the two fixed arc plates 33 tightly attached to the fixed arc plates 33. When the fixed arc plate 33 abuts against the side wall of the socket joint 2, the elastic gasket 331 is tightly attached to the side wall of the socket joint 2, so that scratches of the fixed arc plate 33 outside the socket joint 2 are prevented.

As shown in fig. 1 and 2, the fixing tube 34 is fixedly connected to both ends of one side of the fixing plate 31 facing the socket 2, and the guide rod 35 inserted into the fixing tube 34 is fixedly connected to both ends of one side of the fixing arc plate 33 facing the fixing plate 31. The fixed cylinder 34 can enable the guide rod 35 to vertically move relative to the fixed plate 31 all the time, so that the guide rods 35 at the two ends of the fixed arc plate 33 can ensure that the fixed arc plate 33 is not inclined, and the socket joint 2 can be clamped tightly.

As shown in fig. 1 and 2, both ends of one side of the fixing plate 31 departing from the fixing cylinder 34 are rotatably connected with positioning columns 36, a positioning strip 37 is fixedly connected to a side wall of one end of the positioning column 36 departing from the fixing plate 31, and a plurality of positioning grooves 351 for the positioning strip 37 to be clamped in are arranged at intervals along the length direction of the guide rod 35. When the sleeve joint 2 needs to be removed, the fixed arc plate 33 is pushed to the fixed plate 31, then the positioning column 36 is rotated, and the positioning block is clamped into the positioning groove 351 in the guide rod 35, so that the fixed arc plate 33 is fixed, and the sleeve joint 2 is convenient to remove; meanwhile, after the socket 2 is clamped, the positioning bar 37 is snapped into the positioning groove 351, thereby increasing the stability of the fixing arc plate 33.

As shown in fig. 1 and 2, the two opposite ends of one side of each of the two fixed arc plates 33 are connected by a connecting member 4, the connecting member 4 includes a connecting plate 41 fixedly connected to the two ends of the fixed arc plate 33, one end of each of the two opposite connecting plates 41 away from the fixed arc plate 33 is fixedly connected with a limiting ring 43 and two positioning rings 44, when the two fixed arc plates 33 are close to the rear, the two opposite sides of the limiting ring 43 are respectively attached to the two positioning rings 44, and the limiting ring 43 and the two positioning rings 44 are connected by a fixing bolt 45 and a fixing nut 46. When two fixed arc boards 33 hug closely in cup joint 2 both sides, go into two fixed intra-annular with the go-between card to pass holding bolt 45 and pass holding ring 44 and be connected with fixation nut 46, with two fixed arc boards 33 interconnect, thereby fixed arc board 33 can hug closely all the time in cup joint 2 both sides, simultaneously, after the fixation nut 46 of screwing, the one end of fixing bolt 45 can push up tightly the 2 lateral walls of cup joint, thereby further prevent that cup joint 2 is not hard up.

As shown in fig. 1 and 2, the fixing bolt 45 is sleeved with a spring washer 47 between a fixing nut 46 and the positioning ring 44. The spring washer 47 can give a tension to the fixing nut 46, so that the pressure between the internal thread of the fixing nut 46 and the external thread of the fixing bolt 45 is increased, thereby increasing the friction between the fixing nut 46 and the fixing bolt 45 and preventing the fixing nut 46 from loosening. Two fixing bolt 45 have spacing section of thick bamboo 6 towards the one end threaded connection of the socket 2 lateral wall, and spacing section of thick bamboo 6 deviates from the spacing plectane 5 of one end fixedly connected with of fixation nut 46. Spacing plectane 5 is made by flexible material, screws up fixing bolt 45 after, and spacing plectane 5 supports tightly the socket 2 outside and takes place deformation, increase and socket 2's area of contact to increase frictional force prevents that socket 2 from sliding. The limiting cylinder 6 is rotated to be separated from the fixing bolt 45, so that the fixing bolt 45 can be smoothly drawn out of the positioning ring 44; meanwhile, after the limiting circular plate 5 is worn, the limiting cylinder can be replaced by detaching the limiting circular plate, so that time and labor are saved.

The use process comprises the following steps:

firstly, after the sleeve joint 2 is connected with the valve body 1, the fixed arc plates 33 are clamped on two sides of the sleeve joint 2; then, the limiting ring 43 is clamped between the positioning rings 44, and the limiting bolt and the limiting nut are screwed tightly, so that the limiting circular plate 5 at one end of the limiting bolt tightly pushes against the side wall of the sleeve joint 2; finally, the positioning column 36 is rotated to clamp the positioning strip 37 into the positioning groove 351, so that the socket 2 is effectively prevented from rotating, and time and labor are saved.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a differential pressure combination valve, includes valve body (1) and cup joints (2) with valve body (1) one side threaded connection, its characterized in that: valve body (1) is provided with locking subassembly (3) that are used for fixed joint (2) towards one side of joint (2), locking subassembly (3) are including setting up fixed plate (31) in joint (2) both sides respectively, fixed plate (31) are connected with fixed spring (32) towards one side middle part of joint (2), fixed spring (32) are connected with fixed arc board (33) of hugging closely joint (2) one side towards one side of joint (2).

2. A differential pressure combining valve according to claim 1, wherein: the fixed plate (31) is towards the equal fixedly connected with fixed cylinder (34) in both ends of one side of cup joint (2), fixed arc board (33) is worn to locate guide bar (35) in fixed cylinder (34) towards the both ends fixedly connected with of one side of fixed plate (31).

3. A differential pressure combining valve according to claim 2, wherein: fixed plate (31) deviate from both ends of one side of fixed arc board (33) and all rotate and be connected with reference column (36), the lateral wall fixedly connected with location strip (37) of the one end of fixed plate (31) are kept away from in reference column (36), guide bar (35) are provided with constant head tank (351) that a plurality of confessions were set for location strip (37) card and are gone into along the length direction interval.

4. A differential pressure combining valve according to claim 1, wherein: and one side of the two fixed arc plates (33) tightly attached to the sleeve joint (2) is fixedly connected with an elastic gasket (331).

5. A differential pressure combining valve according to claim 1, wherein: two be provided with connecting piece (4) between the both ends of fixed arc board (33) one side in opposite directions, connecting piece (4) include with fixed arc board (33) both ends fixed connection's connecting plate (41), two are in opposite directions the one end that fixed arc board (33) were kept away from in connecting plate (41) is connected with spacing ring (43) and two holding rings (44) respectively, spacing ring (43) back of the body both sides of the back of the body are hugged closely with two holding rings (44) respectively, be connected through fixing bolt (45) and fixation nut (46) between spacing ring (43) and two holding rings (44).

6. A differential pressure combining valve according to claim 5, wherein: and a spring washer (47) is sleeved between the fixing nut (46) and the positioning ring (44) of the fixing bolt (45).

7. A differential pressure combining valve according to claim 5, wherein: and one end of each of the two fixing bolts (45) facing the side wall of the sleeve joint (2) is connected with a limiting circular plate (5).

8. The differential combination valve of claim 7, wherein: the middle part of one side of the limiting circular plate (5) facing the fixing bolt (45) is connected with a limiting cylinder (6) in threaded connection with the limiting bolt.