Outer cage sleeve type throttle valve core

Abstract

The utility model relates to the field of throttle valve cores, in particular to an outer cage sleeve type throttle valve core, which is characterized in that a valve core is mounted on a valve rod, a mounting seat is fixedly arranged at the bottom of the valve core, a mounting piece is mounted on the mounting seat in a matched manner, and the mounting piece is positioned at the bottom of the valve core and is sleeved on the outer side of the mounting seat; a fixing part is arranged below the mounting part, a threaded column is arranged at the top of the fixing part, a fixing seat is arranged on one side of the fixing part below the mounting part, and a soft fixing column is mounted on the fixing seat. According to the utility model, the mounting piece is assembled at the bottom of the valve core through the mounting seat, the mounting piece can be used as a throttling surface of the valve core to be in contact with water flow, the quick assembly of the mounting piece can be realized through the arrangement of the fixing piece and the fixing column, and when the mounting piece is worn after being used for a long time, only the mounting piece needs to be replaced, so that the cost is saved; and waste is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of throttle valve cores, in particular to an outer cage sleeve type throttle valve core. Background Art

[0002] The outer cage type throttle valve is a special throttle valve, and its main feature is that it has a cage structure on the outside. The outer cage type throttle valve has the advantages of compact structure, reliable sealing, easy operation, good erosion resistance, good anti-cavitation performance, smooth and accurate flow control, low noise, small vibration and long service life. In addition, it also has the characteristics of completely cutting off the fluid, so it is widely used in various occasions that require precise control of fluid flow and pressure, such as hydraulic systems, water supply systems, air conditioning systems and chemical systems.

[0003] The throttle surface at the bottom of the throttle valve core that contacts the water flow is washed by the water flow for a long time during use, which will cause the throttle surface at the bottom of the throttle valve core to wear. This wear will not only affect the throttling effect of the throttle valve core, but may also cause its performance to decline, or even cause more serious failures. The throttle surface and the throttle valve core are usually an integrated structure, so once the throttle surface is worn, the entire throttle valve core needs to be replaced, which has low economic benefits and causes waste. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an outer cage sleeve type throttling valve core.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A throttling valve core with an outer cage sleeve includes a valve stem, on which a valve core is mounted, a mounting seat is fixedly provided at the bottom of the valve core, a mounting piece is adapted to be mounted on the mounting seat, the mounting piece is located at the bottom of the valve core and is sleeved on the outside of the mounting seat; a fixing piece is provided below the mounting piece, a threaded column is provided on the top of the fixing piece, a fixing seat is provided below the mounting piece and on one side of the fixing piece, and a soft fixing column is installed on the fixing seat.

[0007] In addition, a preferred structure is that a mounting hole is opened in the middle of the mounting piece, a threaded sleeve is vertically fixed downward at the bottom of the mounting seat, and the threaded sleeve passes through the mounting hole.

[0008] In addition, a preferred structure is that a sealing body is laid on the portion where the outer side of the threaded sleeve contacts the mounting hole, and the threaded hole on the threaded sleeve is adapted to the threaded column.

[0009] In addition, a preferred structure is that a plurality of sealing rings are provided at the bottom of the mounting member on the outside of the mounting hole, and sealing grooves are adapted to be provided above the fixing member corresponding to the sealing rings.

[0010] In addition, a preferred structure is that a fixing cavity is opened on one side of the top of the fixing piece, and the fixing cavity is adapted to the soft fixing column.

[0011] In addition, a preferred structure is that a plurality of limit columns are fixedly and vertically arranged upward on the top of the mounting member, and corresponding limit columns on the mounting seat are adapted to be provided with limit holes.

[0012] The beneficial effects of the utility model are as follows: a mounting piece is assembled on the bottom of the valve core through a mounting seat; the mounting piece can serve as a throttling surface of the valve core in contact with the water flow; and through the provision of a fixing piece and a fixing column, quick assembly of the mounting piece can be achieved; when the mounting piece is worn after long-term use, only the mounting piece needs to be replaced, thus saving costs and reducing waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the explosion structure of an outer cage type throttling valve core proposed by the utility model;

[0014] Figure 2 This is a bottom view structural schematic diagram of an outer cage type throttle valve core proposed by the utility model;

[0015] Figure 3 This is a top view structural schematic diagram of an outer cage type throttle valve core proposed by the utility model;

[0016] Figure 4 This is a structural schematic diagram of a mounting piece for an outer cage type throttle valve core proposed by the utility model;

[0017] Figure 5 for Figure 4 An enlarged detail of the fixing seat in FIG.

[0018] Figure 6 This is a top view structural schematic diagram of a fixing member of an outer cage type throttle valve core proposed by the utility model;

[0019] Figure 7 The utility model is a schematic diagram of the structure of a mounting seat of an outer cage type throttle valve core in a bottom view.

[0020] In the figure: 1 valve stem, 2 valve core, 3 mounting seat, 31 threaded sleeve, 4 mounting piece, 41 mounting hole, 5 fixing piece, 51 threaded column, 6 fixing seat, 61 soft fixing column, 62 fixing cavity, 7 limiting column, 71 limiting hole, 8 sealing ring, 81 sealing groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-7 , an outer cage sleeve type throttling valve core, including a valve stem 1, a valve core 2 is installed on the valve stem 1, a mounting seat 3 is fixedly provided at the bottom of the valve core 2, a mounting member 4 is adapted to be installed on the mounting seat 3, and the mounting member 4 is located at the bottom of the valve core 2 and sleeved on the outside of the mounting seat 3. A fixing member 5 is provided below the mounting member 4, a threaded column 51 is provided on the top of the fixing member 5, a fixing seat 6 is provided below the mounting member 4 and located on one side of the fixing member 5, and a soft fixing column 61 is installed on the fixing seat 6. It should be noted that the valve stem 1 and the valve core 2 are both adapted to be installed in the valve seat, and the specific working principle and working mode of the valve stem 1 and the valve core 2 in the valve seat are all existing technologies currently disclosed on the market, and they do not belong to the main technical features to be solved in the present technical solution, so they are not elaborated in the present utility model.

[0023] The middle of the mounting member 4 is provided with a mounting hole 41, and a threaded sleeve 31 is fixed and vertically arranged downward at the bottom of the mounting seat 3, and the threaded sleeve 31 passes through the mounting hole. The outer side of the threaded sleeve 31 in contact with the mounting hole 41 is paved with a sealing body, and the threaded hole on the threaded sleeve 31 is adapted to the threaded column 51. By setting the sealing body on the outer side of the threaded sleeve 31, the sealing performance of the device can be improved, thereby preventing external fluid from entering the mounting seat 3.

[0024] Among them, the bottom of the mounting member 4 is provided with a plurality of sealing rings 8 outside the mounting hole 41, and the upper portion of the fixing member 5 is adapted to be provided with sealing grooves 81 corresponding to the sealing rings 8. Through the adaptation setting between the sealing rings 8 and the sealing grooves 81, the sealing performance of the device can be further improved, thereby further preventing external fluid from entering the mounting seat 3.

[0025] A fixing cavity 62 is provided on one side of the top of the fixing member 5, and the fixing cavity 62 is adapted to the soft fixing column 61. The soft fixing column 61 is adapted to the fixing cavity 62 to prevent the fixing member 5 from loosening, and the user can manually bend the soft fixing column 61 and insert it into the fixing cavity 62.

[0026] Among them, the top of the mounting member 4 is fixed with a plurality of limit columns 7 vertically arranged upward, and the corresponding limit columns 7 on the mounting seat 3 are adapted to have limit holes 71. The adaptation setting between the limit columns 7 and the limit holes 71 can prevent the mounting member 4 from rotating or loosening after installation.

[0027] In this embodiment, a mounting seat 3 is fixedly provided at the bottom of the valve core 2, and a mounting member 4 is assembled on the outside of the mounting seat 3. By making the mounting member 4 contact with the water flow, when the mounting member 4 is worn, only the mounting member 4 needs to be replaced.

[0028] Furthermore, when the user needs to install the mounting member 4, the user only needs to set the sleeve of the mounting member 4 below the mounting seat 3, and the threaded sleeve 31 on the mounting seat 3 can pass through the mounting hole 41. Then the user can rotate the threaded column 51 on the fixing member 5 and insert it into the thread on the threaded sleeve 31. When the threaded column 51 is fully inserted, the fixing cavity 62 above it can be completely located on one side of the fixing seat 6. Then the user only needs to bend the soft fixing column 61 on the fixing seat 6 and insert it into the fixing cavity 62, so as to achieve the installation of the fixing member 5. And by setting the soft fixing column 61, the threaded column 51 on the fixing member 5 can be prevented from loosening. And by setting the sealing ring 8 and the sealing body outside the threaded sleeve 31, the sealing performance of the device during use can be guaranteed.

[0029] Furthermore, when the user needs to disassemble the mounting member 4, the user only needs to pick out the soft fixing column 61 in the fixing cavity 62 in the fixing member 5, and then rotate the fixing member 5 through the buckle groove at the bottom of the fixing member 5. When the threaded column 51 is rotated out of the threaded sleeve 31, the mounting member 4 and the fixing member 5 can be removed.

[0030] In the utility model, the bottom of the valve core 2 is assembled with a mounting member 4 through a mounting seat 3. The mounting member 4 can serve as a throttling surface of the valve core 2 in contact with the water flow. Through the arrangement of the fixing member 5 and the fixing column 6, the mounting member 4 can be quickly assembled. When the mounting member 4 is worn after long-term use, it only needs to be replaced, which saves costs and reduces waste.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An outer cage type throttling valve core, comprising a valve stem (1), characterized in that: The valve stem (1) is provided with a valve core (2), a mounting seat (3) is fixedly provided at the bottom of the valve core (2), a mounting member (4) is adapted to be mounted on the mounting seat (3), and the mounting member (4) is located at the bottom of the valve core (2) and sleeved on the outer side of the mounting seat (3); A fixing member (5) is arranged below the mounting member (4), a threaded column (51) is arranged on the top of the fixing member (5), a fixing seat (6) is arranged below the mounting member (4) and on one side of the fixing member (5), and a soft fixing column (61) is installed on the fixing seat (6).

2. The outer cage type throttle valve core according to claim 1, characterized in that: A mounting hole (41) is provided in the middle of the mounting member (4), and a threaded sleeve (31) is vertically and fixedly provided downwardly at the bottom of the mounting seat (3), and the threaded sleeve (31) passes through the mounting hole.

3. The outer cage type throttle valve core according to claim 2, characterized in that: The outer side of the threaded sleeve (31) and the portion in contact with the mounting hole (41) are both provided with sealing bodies, and the threaded holes on the threaded sleeve (31) are adapted to the threaded columns (51).

4. The outer cage type throttle valve core according to claim 3, characterized in that: The bottom of the mounting member (4) is located outside the mounting hole (41) and is provided with a plurality of sealing rings (8), and the upper portion of the fixing member (5) corresponding to the sealing rings (8) is adapted to be provided with sealing grooves (81).

5. The outer cage type throttle valve core according to claim 1, characterized in that: A fixing cavity (62) is provided on one side of the top of the fixing member (5), and the fixing cavity (62) is adapted to fit the soft fixing column (61).

6. The outer cage type throttle valve core according to claim 1, characterized in that: A plurality of limit columns (7) are fixedly and vertically arranged upward on the top of the mounting member (4), and limit holes (71) are adapted to be provided corresponding to the limit columns (7) on the mounting seat (3).

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