CN214036898U

CN214036898U - Pressure-adjustable stop valve

Info

Publication number: CN214036898U
Application number: CN202022623722.6U
Authority: CN
Inventors: 梁静; 薛会鸽; 周广利
Original assignee: Garo Shanghai Automation Control Equipment Co ltd
Current assignee: Garo Shanghai Automation Control Equipment Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-08-24
Anticipated expiration: 2030-11-13

Abstract

The utility model discloses a stop valve with adjustable pressure, including the stop valve body, this internal valve clack that sets up of stop valve, valve clack upper end installation slide bar, stop valve body upper end installation shell, the vertical threaded rod that sets up in right part in the shell, both ends rotate respectively about the threaded rod and connect top and stop valve body upper end in the shell, threaded rod surface cover establishes interior thread plate, and interior thread plate lower extreme left part fixed connection slide bar, threaded rod surface cover establishes gear one, the vertical dwang that sets up in left part in the shell, the dwang upper end rotates and connects top in the shell, dwang lower extreme installation motor, dwang surface cover establishes gear two, the middle part sets up gear three in the shell, and gear three and gear one, gear two-phase meshing, the bottom sets up trigger device in the stop valve body. The utility model discloses a clamp plate buffering water's impact force prevents that rivers from assaulting for a long time and causing the valve clack impaired to influence sealed effect.

Description

Pressure-adjustable stop valve

Technical Field

The utility model relates to a stop valve specifically is a stop valve can adjust pressure.

Background

The shut-off valve is also called a shut-off valve, and belongs to a forced sealing type valve, so when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak. When the medium enters the valve from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force between the valve rod and the packing and the thrust generated by the pressure of the medium, the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise the failure of the valve rod buckling can occur.

The valve clack inside the existing stop valve can be damaged under the long-time impact of water, so that the sealing effect is influenced, and meanwhile, the stop valve cannot be adjusted timely according to the pressure change. Therefore, the utility model provides a stop valve can adjust pressure to solve the problem that proposes in the above-mentioned background art.

Disclosure of Invention

An object of the utility model is to provide a stop valve can adjust pressure to solve the problem that proposes in the above-mentioned background art.

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

the utility model provides a pressure-adjustable stop valve, including the stop valve body, this internal valve clack that sets up of stop valve, valve clack upper end installation slide bar, and the slide bar upper end passes stop valve body upper end, stop valve body upper end installation shell, the vertical threaded rod that sets up in right part in the shell, both ends are rotated respectively about the threaded rod and are connected top in the shell and stop valve body upper end, threaded rod surface cover establishes interior screw plate, and interior screw plate lower extreme left part fixed connection slide bar, threaded rod surface cover establishes gear one, the vertical dwang that sets up in left part in the shell, dwang upper end rotates and is connected top in the shell, dwang lower extreme installation motor, dwang surface cover establishes gear two, the middle part sets up gear three in the shell, and gear three and gear one, gear two-phase meshing, stop valve body bottom sets up trigger device, trigger device includes hollow block, clamp plate, transfer line, The limiting plate is arranged in the hollow block, the limiting plate is connected with the inner wall of the hollow block in a sliding mode, the right end of the pressing plate is provided with the transmission rod, the right end of the transmission rod penetrates through the limiting plate fixedly connected with the hollow block, the hollow block is internally provided with a spring, the right wall of the hollow block is provided with a pressure sensor, and the pressure sensor is located in the spring.

As a further scheme of the utility model, both ends symmetry installation bearing frame one about the threaded rod, and two bearing frame one respectively fixed connection shell in top and the stop valve body upper end.

As the utility model discloses further scheme again, dwang upper end installation bearing frame two, and top in the two fixed connection shells of bearing frame.

As the utility model discloses scheme further again, the motor lower extreme sets up the controller, and controller fixed connection stop valve body upper end.

As the utility model discloses further scheme again, three upper end erection joint poles of gear, top in the connecting rod one end fixed connection shell, the connecting rod other end rotates and connects gear three.

As the utility model discloses further scheme again, spring one end fixed connection limiting plate, the hollow block inner wall of spring other end fixed connection.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a clamp plate buffering water's impact force prevents that rivers from assaulting for a long time and causing the valve clack impaired to influence sealed effect, make the motor drive valve clack remove through trigger device, in time adjust pressure, increased the precision of stop valve.

Drawings

Fig. 1 is a schematic structural diagram of a pressure-adjustable stop valve.

Fig. 2 is a schematic structural diagram of a housing of a pressure-adjustable stop valve.

Fig. 3 is a schematic structural diagram of a trigger device in a pressure-adjustable stop valve.

In the figure: 1. a stop valve body; 2. a valve flap; 3. a slide bar; 4. a housing; 5. a threaded rod; 51. a first bearing seat; 52. a first gear; 53. an internally threaded plate; 6. a third gear; 7. a motor; 71. rotating the rod; 72. a second bearing seat; 73. a second gear; 8. a trigger device; 81. a hollow block; 82. pressing a plate; 83. a transmission rod; 84. a limiting plate; 85. a spring; 9. a pressure sensor; 10. and a controller.

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 to 3, in the embodiment of the present invention, a pressure-adjustable stop valve includes a stop valve body 1, a valve flap 2 is disposed in the stop valve body 1, a sliding rod 3 is mounted at the upper end of the valve flap 2, the upper end of the sliding rod 3 passes through the upper end of the stop valve body 1, a housing 4 is mounted at the upper end of the stop valve body 1, a threaded rod 5 is vertically disposed at the right portion in the housing 4, bearing blocks 51 are symmetrically mounted at the upper and lower ends of the threaded rod 5, and the two bearing blocks 51 are respectively fixedly connected to the inner top of the housing 4 and the upper end of the stop valve body 1, an inner threaded plate 53 is sleeved on the outer surface of the threaded rod 5, a sliding rod 3 is fixedly connected to the left portion of the lower end of the inner threaded plate 53, a gear 52 is sleeved on the outer surface of the threaded rod 5, a rotating rod 71 is vertically disposed at the left portion in the housing 4, a bearing block 72 is fixedly connected to the inner top of the housing 4, a motor 7 is mounted at the lower end of the rotating rod 71, the lower end of the motor 7 is provided with a controller 10, the controller 10 is fixedly connected with the upper end of the stop valve body 1, the outer surface of the rotating rod 71 is sleeved with a gear II 73, the middle part in the shell 4 is provided with a gear III 6, the gear III 6 is meshed with a gear I52 and the gear II 73, the upper end of the gear III 6 is provided with a connecting rod, one end of the connecting rod is fixedly connected with the top in the shell 4, the other end of the connecting rod is rotatably connected with the gear III 6, the bottom in the stop valve body 1 is provided with a trigger device 8, the trigger device 8 comprises a hollow block 81, a pressure plate 82, a transmission rod 83 and a limit plate 84, the limit plate 84 is arranged in the hollow block 81, the limit plate 84 is slidably connected with the inner wall of the hollow block 81, the transmission rod 83 is arranged at the right end of the pressure plate 82, the right end of the, the pressure sensor 9 is mounted on the right wall of the hollow block 81, and the pressure sensor 9 is located in the spring 85.

The utility model discloses a theory of operation is: the impact force of the liquid is buffered through the pressing plate 82, when the impact force of the liquid is large, the pressing plate 82 is stressed to move, the pressing plate 82 drives the limiting plate 84 to move through the transmission rod 83, the spring 85 is compressed, the limiting plate 84 triggers the pressure sensor 9, the pressure sensor 9 transmits a signal to the controller 10, the controller 10 controls the motor 7 to work to drive the rotating rod 71 to rotate, the rotating rod 71 drives the threaded rod 5 to rotate through the first gear 52, the second gear 73 and the third gear 6, the threaded rod 5 drives the inner threaded plate 53 to move, the inner threaded plate 53 drives the valve clack 2 to move through the sliding rod 3, the flow rate which can pass is increased, after the pressure is reduced, the pressure sensor 9 transmits a signal to the controller 10, the controller 10 controls the motor 7 to rotate reversely, the valve clack 2 is moved, and the flow rate which can pass is reduced.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A pressure-adjustable stop valve comprises a stop valve body (1) and is characterized in that a valve clack (2) is arranged in the stop valve body (1), a sliding rod (3) is installed at the upper end of the valve clack (2), the upper end of the sliding rod (3) penetrates through the upper end of the stop valve body (1), a shell (4) is installed at the upper end of the stop valve body (1), a threaded rod (5) is vertically arranged at the right part in the shell (4), the upper end and the lower end of the threaded rod (5) are respectively and rotatably connected with the inner top part of the shell (4) and the upper end of the stop valve body (1), an inner threaded plate (53) is sleeved on the outer surface of the threaded rod (5), the lower end of the inner threaded plate (53) is fixedly connected with the sliding rod (3), a first gear (52) is sleeved on the outer surface of the threaded rod (5), a rotating rod (71) is vertically arranged at the left part in the shell (4), the upper end of the rotating rod (71) is rotatably connected with the inner top part of the shell (4), a motor (7) is arranged at the lower end of the rotating rod (71), a second gear (73) is sleeved on the outer surface of the rotating rod (71), a third gear (6) is arranged in the middle of the shell (4), the third gear (6) is meshed with the first gear (52) and the second gear (73), the bottom in the stop valve body (1) is provided with a trigger device (8), the trigger device (8) comprises a hollow block (81), a pressing plate (82), a transmission rod (83) and a limiting plate (84), the limiting plate (84) is arranged in the hollow block (81), and limiting plate (84) and hollow block (81) inner wall sliding connection, clamp plate (82) right-hand member installation transfer line (83), transfer line (83) right-hand member passes hollow block (81) fixed connection limiting plate (84), sets up spring (85) in hollow block (81), and right wall installation pressure sensor (9) in hollow block (81), and pressure sensor (9) are located spring (85).

2. The pressure-adjustable stop valve according to claim 1, characterized in that the threaded rod (5) is provided with a first bearing seat (51) at the upper end and the lower end thereof symmetrically, and the first bearing seats (51) are fixedly connected with the inner top of the housing (4) and the upper end of the stop valve body (1), respectively.

3. The pressure-adjustable stop valve according to claim 1, characterized in that a second bearing seat (72) is mounted at the upper end of the rotating rod (71), and the second bearing seat (72) is fixedly connected with the inner top of the housing (4).

4. A pressure-adjustable stop valve according to claim 1, characterized in that the lower end of the motor (7) is provided with a controller (10), and the controller (10) is fixedly connected with the upper end of the stop valve body (1).

5. A pressure-adjustable stop valve according to claim 1, characterized in that a connecting rod is arranged at the upper end of the gear three (6), one end of the connecting rod is fixedly connected with the inner top of the shell (4), and the other end of the connecting rod is rotatably connected with the gear three (6).

6. The pressure-adjustable stop valve according to claim 1, characterized in that one end of the spring (85) is fixedly connected with the limiting plate (84), and the other end of the spring (85) is fixedly connected with the inner wall of the hollow block (81).