CN214197421U

CN214197421U - Wear-resistant adjustable differential pressure overflow valve

Info

Publication number: CN214197421U
Application number: CN202021930313.4U
Authority: CN
Inventors: 石磊岩
Original assignee: Shenyang Sunrise East Industrial Equipment Co ltd
Current assignee: Shaanxi Shuangde Changsheng Machinery Equipment Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-09-14
Anticipated expiration: 2030-09-07

Abstract

The utility model discloses a stand wear and tear adjustable pressure difference overflow valve relates to overflow valve technical field. The wear-resistant pressure difference-adjustable overflow valve comprises a valve body, wherein the right side of the valve body is communicated with the inside of a pressure relief pipe, the inner wall of the pressure relief pipe is in sliding connection with a movable pipe through a sealing sleeve, and the inner wall of the movable pipe is movably connected with a piston. This stand wear and tear adjustable pressure difference overflow valve, can adjust the position of movable tube through the knob, and because atmospheric pressure and supporting spring's effect, the piston can not remove, so the piston changes with movable tube right side distance, thereby adjust the position of piston pressure release, even when pipeline internal pressure allowwed value changes, also can use this overflow valve to protect, the practicality of this overflow valve has been improved, and the thread block can be fixed the position of threaded rod, thereby prevent to adjust the position that finishes the back mistake touched the knob and lead to the movable tube and change, the device's stability has been improved.

Description

Wear-resistant adjustable differential pressure overflow valve

Technical Field

The utility model relates to an overflow valve technical field specifically is a stand wear and tear adjustable pressure difference overflow valve.

Background

The safety overflow valve plays a safety protection role in the system. When the system pressure exceeds the specified value, the safety valve is opened, and a part of gas in the system is discharged into the atmosphere, so that the system pressure does not exceed the allowable value, and the system is ensured not to have accidents due to overhigh pressure.

The pressure allowable value of the existing overflow valve can not be adjusted, so that overflow valves of other models need to be replaced when the requirement on the pressure allowable value in the pipeline is inconsistent, and the replacement of overflow valves of other models consumes time and labor, and has certain limitation.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The not enough to prior art, the utility model provides a stand wear and tear adjustable pressure difference overflow valve has solved the problem that proposes among the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a wear-resistant pressure-difference-adjustable overflow valve comprises a valve body, wherein the right side of the valve body is communicated with the inside of a pressure relief pipe, the inner wall of the pressure relief pipe is in sliding connection with a movable pipe through a sealing sleeve, the inner wall of the movable pipe is movably connected with a piston, the right side of the piston is fixedly connected with a supporting spring, the right end of the supporting spring is fixedly connected with the inner wall of a protective sleeve, the left side of the protective sleeve is fixedly connected with the valve body, the right side of the top of the movable pipe is fixedly connected with a bolt, the inner wall of the bolt is in threaded connection with a threaded rod, the right end of the threaded rod is fixedly connected with a knob, the left end of the threaded rod is rotatably connected with the valve body, the top of the threaded rod is in threaded connection with a threaded block, the side face of the threaded block is fixedly connected with a supporting block, the top of the supporting block is attached to a stop block, the slide block is fixedly connected with the bottom of the slide block, the slide is in sliding connection with the inner wall of the slide groove, the top of the sliding block is movably connected with the button through a transmission rope, a transmission assembly is arranged right below the button, and the transmission assembly is movably connected with the thread block.

Preferably, the bottom of the protective sleeve is provided with a vent hole.

Preferably, the transmission rope is attached to the surface of the fixing column, and the fixing column is fixedly connected with the inner wall of the protective sleeve.

Preferably, the transmission assembly comprises a first rack rod, a gear and a second rack rod, the top end of the first rack rod is arranged below the button, the first rack rod is meshed with one side of the gear, the other side of the gear is meshed with the second rack rod, the gear is connected with the inner wall of the protective sleeve in a rotating mode, and the bottom end of the second rack rod is fixedly connected with the thread block.

Preferably, the number of the gears and the second rack bars is two, two groups of gears and the second rack bars are symmetrically arranged on two sides of the first rack bar, and racks are arranged on two sides of the first rack bar.

Preferably, the button is sleeved inside the reset spring, and two ends of the reset spring are respectively fixedly connected with the button and the protective sleeve.

Preferably, the valve body is made of wear-resistant metal.

(III) advantageous effects

The utility model provides a stand wear and tear adjustable pressure difference overflow valve. The method has the following beneficial effects:

(1) this stand wear and tear adjustable pressure difference overflow valve, can adjust the position of movable tube through the knob, and because atmospheric pressure and supporting spring's effect, the piston can not remove, so the piston changes with movable tube right side distance, thereby adjust the position of piston pressure release, even when pipeline internal pressure allowwed value changes, also can use this overflow valve to protect, the practicality of this overflow valve has been improved, and the screw thread piece can be fixed the position of threaded rod, thereby prevent to adjust and touch the knob and lead to the position of movable tube to change after finishing by mistake, the stability of the device has been improved.

(2) This stand wear and tear adjustable pressure difference overflow valve, the material design of valve body can greatly improve the life of valve body to reduce the maintenance cycle of valve body, it is corresponding, also reduced the maintenance cost of valve body, further improved the practicality of this overflow valve.

Drawings

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

FIG. 2 is an enlarged schematic view of a portion A of FIG. 1 according to the present invention;

fig. 3 is an enlarged schematic structural diagram of a portion B in fig. 2 according to the present invention.

In the figure: the valve comprises a valve body 1, a pressure relief pipe 2, a sealing sleeve 3, a movable pipe 4, a piston 41, a supporting spring 42, a protective sleeve 5, a vent hole 51, a bolt 6, a threaded rod 7, a knob 8, a threaded block 9, a supporting block 91, a stop block 10, a slide block 11, a sliding chute 12, a transmission rope 13, a fixed column 131, a button 14, a return spring 141, a transmission assembly 15, a first rack rod 151, a gear 152 and a second rack rod 153.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a wear-resistant pressure difference adjustable overflow valve comprises a valve body 1, the right side of the valve body 1 is communicated with the inside of a pressure relief pipe 2, the inner wall of the pressure relief pipe 2 is in sliding connection with a movable pipe 4 through a sealing sleeve 3, the inner wall of the movable pipe 4 is movably connected with a piston 41, the right side of the piston 41 is fixedly connected with a supporting spring 42, the right end of the supporting spring 42 is fixedly connected with the inner wall of a protective sleeve 5, the left side of the protective sleeve 5 is fixedly connected with the valve body 1, the right side of the top of the movable pipe 4 is fixedly connected with a bolt 6, the inner wall of the bolt 6 is in threaded connection with a threaded rod 7, the right end of the threaded rod 7 is fixedly connected with a knob 8, the left end of the threaded rod 7 is in rotating connection with the valve body 1, the top of the threaded rod 7 is in threaded connection with a threaded block 9, the side of the threaded block 9 is fixedly connected with a supporting block 91, the top of the supporting block 91 is attached to a block 10, the block 10 is fixedly connected with the bottom of a sliding block 11, the sliding block is in sliding connection with the inner wall of a sliding groove 12, and the inner wall of the protective sleeve 5, the top of the sliding block 11 is movably connected with a button 14 through a transmission rope 13, a transmission assembly 15 is arranged under the button 14, the transmission assembly 15 is movably connected with a thread block 9, the position of the movable pipe 4 can be adjusted through a knob 8, and due to the action of air pressure and a supporting spring, the piston 41 can not move, so that the distance between the piston 41 and the right side of the movable pipe 4 changes, the pressure relief position of the piston 41 is adjusted, even when the internal pressure allowable value of a pipeline changes, the overflow valve can be used for protection, the practicability of the overflow valve is improved, the thread block 9 can fix the position of the threaded rod 7, the situation that the knob 8 is touched by mistake after the adjustment is finished and the position of the movable pipe 4 changes is prevented, and the stability of the device is improved.

Preferably, in this embodiment, the bottom of the protective sleeve 5 is provided with a vent hole 51.

Preferably, in this embodiment, the driving rope 13 is attached to the surface of the fixing column 131, and the fixing column 131 is fixedly connected to the inner wall of the protection sleeve 5.

Preferably, in this embodiment, the transmission assembly 15 includes a first rack bar 151, a gear 152 and a second rack bar 153, the top end of the first rack bar 151 is disposed below the button 14, the first rack bar 151 is engaged with one side of the gear 152, the other side of the gear 152 is engaged with the second rack bar 153, the gear 152 is rotatably connected with the inner wall of the protective sleeve 5, and the bottom end of the second rack bar 153 is fixedly connected with the thread block 9.

Preferably, in the present embodiment, the number of the gears 152 and the second rack bars 153 is two, two sets of the gears 152 and the second rack bars 153 are symmetrically disposed on two sides of the first rack bar 151, and racks are disposed on two sides of the first rack bar 151.

Preferably, in this embodiment, the button 14 is sleeved inside the return spring 141, and two ends of the return spring 141 are respectively fixedly connected with the button 14 and the protective sleeve 5.

Preferably, in this embodiment, the material of valve body is wear-resisting metal, and the material design of valve body 1 can greatly improve the life of valve body 1 to reduce valve body 1's maintenance cycle, it is corresponding, also reduced valve body 1's maintenance cost, further improved the practicality of this overflow valve.

When the device works (or is used), when the position of the movable tube 4 is adjusted, the button 14 is pressed downwards, and the movement of the button 14 is divided into two sections; in the first stage, the button 14 pulls the slider 11 and the stopper 10 to move away from the thread block 9 through the driving rope 13, after the stopper 10 is separated from the supporting block 91, the bottom of the button 14 is contacted with the first rack bar 151, and then the second stage moves, in the second stage, the button 14 pushes the first rack bar 151 to descend, the first rack bar 151 enables the two gears 152 to rotate, the gear 152 on the left side rotates clockwise, the gear 152 on the right side rotates anticlockwise, under the action of the two gears 152, the two second rack bars 153 pull the thread block 9 to ascend, after the thread block 9 is separated from the thread rod 7, the knob 8 is rotated, the knob 8 enables the thread rod 7 to rotate, the bolt 6 in threaded connection with the thread rod 7 drives the movable tube 4 to move left and right, after the adjustment is finished, the knob 8 and the button 14 are loosened, the button 14 returns upwards under the action of the return spring 141, because the first rack bar 151 is not pressed by the button 14, the thread block 9 automatically descends under the action of gravity and is in threaded connection with the threaded rod 7, and meanwhile, the slide block 11 drives the stop block 10 to move towards the direction of the thread block 9 under the action of the spring on the side surface of the slide block until the bottom of the stop block 10 is attached to the top of the supporting block 91. In conclusion, the whole device can change the position of the movable tube 4 only by pressing the button 14 and rotating the knob 8, so that the movable tube 4 can not be moved when an operator only touches the knob 14 by mistake, and the effect of preventing the operator from touching by mistake is achieved.

When the pressure in the pipe is too high in the using process of the overflow valve, the piston 41 can move rightwards under the action of gas, and when the piston 41 moves out of the movable pipe 4, the gas in the pipe can be released to reduce the pressure in the pipe, so that the distance of the piston 4 moving out of the movable pipe 41 can be changed by adjusting the position of the movable pipe 4, and the allowable value of the overflow valve for the pressure in the pipe can be adjusted.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a stand wear and tear adjustable pressure differential overflow valve, includes valve body (1), valve body (1) right side and inside intercommunication of pressure release pipe (2), its characterized in that: the inner wall of the pressure relief pipe (2) is in sliding connection with the movable pipe (4) through a sealing sleeve (3), the inner wall of the movable pipe (4) is movably connected with a piston (41), a supporting spring (42) is fixedly connected to the right side of the piston (41), the right end of the supporting spring (42) is fixedly connected with the inner wall of the protective sleeve (5), the left side of the protective sleeve (5) is fixedly connected with the valve body (1), a bolt (6) is fixedly connected to the right side of the top of the movable pipe (4), the inner wall of the bolt (6) is in threaded connection with a threaded rod (7), a knob (8) is fixedly connected to the right end of the threaded rod (7), the left end of the threaded rod (7) is rotatably connected with the valve body (1), the top of the threaded rod (7) is in threaded connection with a threaded block (9), a supporting block (91) is fixedly connected to the side of the threaded block (9), and the top of the supporting block (91) is attached to the stop block (10), dog (10) and slider (11) bottom fixed connection, slider (11) and spout (12) inner wall sliding connection, spout (12) and protective sheath (5) inner wall fixed connection, transmission rope (13) and button (14) swing joint are passed through at slider (11) top, be provided with drive assembly (15) under button (14), drive assembly (15) and screw thread piece (9) swing joint.

2. A wear-resistant adjustable differential pressure relief valve as defined in claim 1, wherein: the bottom of the protective sleeve (5) is provided with an air vent (51).

3. A wear-resistant adjustable differential pressure relief valve as defined in claim 1, wherein: the surface of the transmission rope (13) is attached to the surface of the fixed column (131), and the fixed column (131) is fixedly connected with the inner wall of the protective sleeve (5).

4. A wear-resistant adjustable differential pressure relief valve as defined in claim 1, wherein: drive assembly (15) include first rack bar (151), gear (152) and second rack bar (153), first rack bar (151) top sets up in button (14) below, first rack bar (151) and gear (152) one side meshing, gear (152) opposite side and second rack bar (153) meshing, gear (152) and protective sheath (5) inner wall rotate to be connected, second rack bar (153) bottom and thread piece (9) fixed connection.

5. A wear-resistant adjustable differential pressure relief valve as defined in claim 4, wherein: the quantity of gear (152) and second rack pole (153) is two, and two sets of gear (152) and second rack pole (153) symmetry set up in first rack pole (151) both sides, first rack pole (151) both sides all are provided with the rack.

6. A wear-resistant adjustable differential pressure relief valve as defined in claim 1, wherein: the button (14) is sleeved inside the return spring (141), and two ends of the return spring (141) are fixedly connected with the button (14) and the protective sleeve (5) respectively.