CN223635351U - A multi-stage throttling valve - Google Patents

Abstract

The utility model discloses a multi-stage throttle valve, which relates to the technical field of multi-stage throttle valves and comprises a fixed support component, a switch component and a multi-stage valve component, wherein the fixed support component comprises a throttle pipe and a liquid inlet, the liquid inlet is arranged at the bottom end of the throttle pipe, the switch component is positioned at the top end of the fixed support component, the switch component comprises a rotary handle and a rotary shaft, the top end of the rotary shaft is fixedly connected with the rotary handle, and the multi-stage valve component comprises a multi-stage valve lower end cover. According to the multi-stage throttling valve, the sleeve is fixed through the upper end cover of the multi-stage valve, the valve core is fixed through the sleeve, the fixing screw rod is arranged in the valve core, the valve cage can be fixed through the fixing screw rod, when the inside of the multi-stage throttling valve is blocked, only the main pipeline cover and the upper end cover of the multi-stage valve are required to be disassembled, parts in the pipeline of the throttling valve can be taken out, and the installation and the disassembly are simple and convenient.

Description

Multistage throttling type throttle valve

Technical Field

The utility model relates to the technical field of multi-stage throttle valves, in particular to a multi-stage throttle valve.

Background

The throttle valve is a valve for controlling the flow of fluid by changing the throttle section or the throttle length, the throttle valve usually consists of a shell and a body for adjusting, the body is arranged in a valve hole of the shell in a penetrating way, the flow between one end of the body and the shell is controlled by the body, and the multi-stage throttle control valve mainly has two structural forms, namely a multi-stage sleeve type regulating valve or a labyrinth type multi-stage regulating valve. The multistage sleeve type regulating valve is characterized in that a plurality of coaxial sleeves are sleeved outside a valve core, a plurality of holes are formed in each sleeve, and the multilayer sleeves are overlapped to perform multistage decompression. The labyrinth type multistage regulating valve adopts a labyrinth disc laminated structure, and multistage bending flow passages are processed on the disc, so that the resistance coefficient of the sleeve is improved through the multistage bending flow passages.

At present, the valve seat used has the function of realizing throttling by tightly matching with the valve core, and also has the function of limiting the movement distance of the valve core when the throttle valve is opened, and the valve seat has the advantages of relatively complex structure, higher overall manufacturing cost of the throttle valve, incapability of quickly clearing once blockage occurs, light performance reduction of the valve, and even failure of the valve, thereby bringing a plurality of troubles to practical use and inconvenient popularization and use.

The present application provides a multi-stage throttle type throttle valve to solve this problem.

Disclosure of utility model

The utility model aims to provide a multi-stage throttling valve, which aims to solve the problems that the multi-stage throttling valve provided in the background art is relatively complex in structure, so that the whole manufacturing cost of the multi-stage throttling valve is high, the multi-stage throttling valve cannot be quickly cleaned once blockage occurs, and the using effect is poor.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The utility model provides a multistage throttle valve, includes fixed support subassembly, switch subassembly and multistage valve subassembly, fixed support subassembly includes throttle valve pipeline and inlet, the bottom at the throttle valve pipeline is seted up to the inlet, switch subassembly is located the top of fixed support subassembly, switch subassembly is including rotating handle and rotation axis, the top and the rotation handle fixed connection of rotation axis, multistage valve subassembly includes multistage valve lower extreme cover, multistage valve lower extreme cover fixed mounting is in the inside of throttle valve pipeline.

The technical scheme of the utility model is further improved in that a liquid outlet is formed in one side of the throttle valve pipeline, a fixing bolt is connected with the top of the throttle valve pipeline in a threaded manner, and a main pipeline cover is fixedly arranged at the top end of the throttle valve pipeline.

The technical scheme of the utility model is further improved in that a circular sealing ring is arranged at the bottom of the main pipeline cover, and an auxiliary pipeline cover is arranged at the top of the main pipeline cover in a threaded manner.

The technical scheme of the utility model is further improved in that a primary sealing valve body is movably arranged in the lower end cover of the multi-stage valve, and the top of the primary sealing valve body is fixedly connected with a connecting rod.

The technical scheme of the utility model is further improved in that a sealing gasket is arranged at the top of the lower end cover of the multi-stage valve, a valve cage is movably arranged at the top of the sealing gasket, and a valve core is movably arranged at the top of the lower end cover of the multi-stage valve.

The technical scheme of the utility model is further improved in that a secondary sealing valve body is movably connected inside the valve core, a fixing screw is connected inside the valve core in a threaded manner, and a sleeve is arranged at the top of the valve core.

The technical scheme of the utility model is further improved in that the top end of the connecting rod is fixedly connected with a threaded rod, the external thread of the threaded rod is connected with a thread sleeve, the top of the thread sleeve is provided with a rotating bearing, the external part of the threaded rod is movably connected with a multi-stage valve upper end cover, and the multi-stage valve upper end cover is arranged in a throttle valve pipeline in a threaded manner.

By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:

1. The utility model provides a multi-stage throttle valve, which is characterized in that under the combined action of a pipeline cover, a multi-stage valve upper end cover, a sleeve and a threaded rod, the multi-stage valve upper end cover is connected with a throttle pipeline through threads on the outer part of the multi-stage valve upper end cover, so that the sleeve below the multi-stage valve upper end cover can be fixed, a valve core is fixed through the sleeve, a fixing screw is arranged in the valve core, a valve cage can be fixed through the fixing screw, when the inner part of the multi-stage throttle valve is blocked, the inner part of the throttle pipeline can be taken out by only disassembling the main pipeline cover and the multi-stage valve upper end cover, and the multi-stage throttle valve is cleaned.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a multi-stage throttle valve of the present utility model;

FIG. 2 is a schematic view of the internal structure of the multi-stage throttle valve of the present utility model;

FIG. 3 is a schematic structural view of the multi-stage valve assembly of the present utility model;

Fig. 4 is a schematic structural view of the switch assembly of the present utility model.

The valve comprises a fixed support assembly, a switch assembly, a multi-stage valve assembly, a 10, a throttle valve pipeline, a 11, a liquid outlet, a 12, a liquid inlet, a 13, a main pipeline cover, a 14, a fixing bolt, a 15, a round sealing ring, a 16, a secondary pipeline cover, a 20, a rotary handle, a 21, a rotary shaft, a 22, a threaded rod, a 23, a threaded sleeve, a 24, a rotary bearing, a 25, a sleeve, a 30, a primary sealing valve body, a 31, a multi-stage valve lower end cover, a 32, a connecting rod, a 33, a multi-stage valve upper end cover, a 34, a valve cage, a 35, a fixing screw, a 36, a sealing gasket, a 37, a valve core, a 38 and a secondary sealing valve body.

Detailed Description

The utility model is further illustrated by the following examples:

As shown in fig. 1-4, the utility model provides a multi-stage throttling type throttle valve, which comprises a fixed support component 1, a switch component 2 and a multi-stage valve component 3, wherein the fixed support component 1 comprises a throttle valve pipeline 10 and a liquid inlet 12, the liquid inlet 12 is formed at the bottom end of the throttle valve pipeline 10, the switch component 2 is positioned at the top end of the fixed support component 1, a liquid outlet 11 is formed at one side of the throttle valve pipeline 10, liquid enters the valve body from the liquid inlet 12 at the bottom of the throttle valve pipeline 10, flows out from the liquid outlet 11 at the side surface of the throttle valve pipeline 10 after throttling, a fixing bolt 14 is connected with the top thread of the throttle valve pipeline 10, a main pipeline cover 13 is fixedly arranged at the top end of the throttle valve pipeline 10, a circular sealing ring 15 is arranged between the main pipeline cover 13 and the throttle valve pipeline 10, and the circular sealing ring 15 can seal the main pipeline cover 13 to prevent liquid leakage, and a secondary pipeline cover 16 is fixedly arranged at the top thread of the main pipeline cover 13.

The switch assembly 2 comprises a rotary handle 20 and a rotary shaft 21, the top end of the rotary shaft 21 is fixedly connected with the rotary handle 20, the top end of a connecting rod 32 is fixedly connected with a threaded rod 22, the outer thread of the threaded rod 22 is connected with a thread bush 23, the top of the thread bush 23 is provided with a rotary bearing 24, the rotary shaft 21 is rotated by rotating the rotary handle 20, and the thread bush 23 is connected with the main pipeline cover 13 through the rotary bearing 24, so that when the rotary shaft 21 drives the thread bush 23 to rotate, the threaded rod 22 is lifted.

The multi-stage valve assembly 3 comprises a multi-stage valve lower end cover 31, the multi-stage valve lower end cover 31 is fixedly arranged at one end, far away from the rotary handle 20, of the throttle valve pipeline 10, a sealing gasket 36 is arranged at the top of the multi-stage valve lower end cover 31, a valve core 37 is movably arranged at the top of the multi-stage valve lower end cover 31, a secondary sealing valve body 38 is movably connected inside the valve core 37, when the rotary handle 20 is rotated to enable the threaded rod 22 to ascend, the threaded rod 22 firstly drives the secondary sealing valve body 38 to ascend, liquid flows out through the valve core 37, a primary sealing valve body 30 is movably arranged inside the multi-stage valve lower end cover 31, a connecting rod 32 is fixedly connected at the top of the primary sealing valve body 30, a valve cage 34 is movably connected outside the connecting rod 32, the connecting rod 32 is driven by the threaded rod 22 to lift up with the primary sealing valve body 30, so that liquid enters the valve cage 34 through the lower end cover 31 of the multi-stage valve, the upper end cover 33 of the multi-stage valve is arranged in the throttle valve pipeline 10 in a threaded manner, the upper end cover 33 of the multi-stage valve is connected with the throttle valve pipeline 10 through the external threads of the upper end cover 33 of the multi-stage valve, the sleeve 25 below the upper end cover 33 of the multi-stage valve can be fixed, the valve core 37 is fixed through the sleeve 25, the fixing screw 35 is arranged in the valve core 37, the valve cage 34 can be fixed through the fixing screw 35, the threaded rod 22 is movably connected in the upper end cover 33 of the multi-stage valve, the valve cage 34 is movably arranged at the top of the sealing gasket 36, the fixing screw 35 is connected in the internal threads of the valve core 37, the sleeve 25 is arranged at the top of the valve core 37,

The working principle of the multi-stage throttle type throttle valve will be described in detail.

As shown in fig. 1-4, when the multi-stage throttle valve is used, the rotating handle 20 is rotated to enable the rotating shaft 21 to rotate, and the threaded sleeve 23 is connected with the main pipeline cover 13 through the rotating bearing 24, so that when the rotating shaft 21 drives the threaded sleeve 23 to rotate, the threaded rod 22 is enabled to ascend, when the rotating handle 20 is rotated to ascend the threaded rod 22, the threaded rod 22 firstly drives the secondary seal valve body 38 to ascend, the threaded rod 22 drives the connecting rod 32 and the primary seal valve body 30 to ascend, so that liquid enters the valve cage 34 through the lower end cover 31 of the multi-stage valve, then enters the inner part of the valve core 37 through a hole in the valve cage 34, flows out of the liquid outlet 11 through the second seal valve body 38, the upper end cover 33 is connected with the throttle valve pipeline 10 through threads on the outer part of the multi-stage valve upper end cover, the sleeve 25 below the multi-stage valve upper end cover 33 is enabled to be fixed, the inner part of the valve core 37 is enabled to be fixed through the sleeve 25, the fixing screw 35 is enabled to be fixed through the fixing screw 35, and when the inner part of the multi-stage throttle valve is blocked, the inner part of the multi-stage throttle valve is required to be removed, and the valve is required to be removed from the main pipeline cover 10 simply.

The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims (7)

1. The multi-stage throttle type throttle valve comprises a fixed support assembly (1), a switch assembly (2) and a multi-stage valve assembly (3), and is characterized in that the fixed support assembly (1) comprises a throttle pipeline (10) and a liquid inlet (12), the liquid inlet (12) is formed in the bottom end of the throttle pipeline (10), the switch assembly (2) is located at the top end of the fixed support assembly (1), the switch assembly (2) comprises a rotating handle (20) and a rotating shaft (21), the top end of the rotating shaft (21) is fixedly connected with the rotating handle (20), the multi-stage valve assembly (3) comprises a multi-stage valve lower end cover (31), and the multi-stage valve lower end cover (31) is fixedly installed inside the throttle pipeline (10).

2. The multi-stage throttling type throttle valve according to claim 1, wherein a liquid outlet (11) is formed in one side of the throttle valve pipeline (10), a fixing bolt (14) is connected to the top of the throttle valve pipeline (10) in a threaded mode, and a main pipeline cover (13) is fixedly arranged at the top end of the throttle valve pipeline (10).

3. A multi-stage throttle valve according to claim 2, wherein a circular sealing ring (15) is arranged at the bottom of the main pipe cover (13), and a secondary pipe cover (16) is arranged at the top of the main pipe cover (13) in a threaded manner.

4. The multi-stage throttling type throttle valve according to claim 1, wherein a primary sealing valve body (30) is movably arranged in a lower end cover (31) of the multi-stage valve, and a connecting rod (32) is fixedly connected to the top of the primary sealing valve body (30).

5. The multi-stage throttling valve according to claim 1, wherein a sealing gasket (36) is arranged at the top of the lower end cover (31) of the multi-stage valve, a valve cage (34) is movably arranged at the top of the sealing gasket (36), and a valve core (37) is movably arranged at the top of the lower end cover (31) of the multi-stage valve.

6. The multi-stage throttling valve according to claim 5, wherein a secondary sealing valve body (38) is movably connected to the inside of the valve core (37), a fixing screw (35) is connected to the inside of the valve core (37) in a threaded manner, and a sleeve (25) is arranged at the top of the valve core (37).

7. The multi-stage throttle valve according to claim 4, wherein the top end of the connecting rod (32) is fixedly connected with a threaded rod (22), the external thread of the threaded rod (22) is connected with a thread sleeve (23), the top of the thread sleeve (23) is provided with a rotating bearing (24), the external part of the threaded rod (22) is movably connected with a multi-stage valve upper end cover (33), and the multi-stage valve upper end cover (33) is arranged in the throttle valve pipeline (10) in a threaded mode.