Valve rod sleeve structure easy to assemble

Abstract

The utility model discloses a valve rod sleeve structure easy to assemble, which belongs to the field of valves and comprises an outer sleeve, two mounting columns arranged on the inner side of the outer sleeve, a first round hole formed in the middle of each mounting column, a guide plate fixedly mounted on the outer side of the outer sleeve, two cushion blocks mounted on the inner side of the outer sleeve, and a valve rod rotatably mounted between the two cushion blocks. The guide plate is arranged on the outer side of the outer sleeve, the guide plate can guide the outer sleeve to enter the valve through the shape of the guide plate, the outer sleeve is prevented from being clamped, and the assembling convenience of the valve rod is improved; the installation column is installed on the inner side of the outer sleeve, the first round hole is formed in the middle of the installation column, tools can be installed in the first round hole, the outer sleeve can be taken out and put down conveniently, and assembling is easy.

Description

Technical Field

[0001] The utility model relates to the field of valves, in particular to a valve stem sleeve structure which is easy to assemble. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc.

[0003] A valve stem is installed on the upper part of the valve, and a valve stem sleeve is installed on the outside of the valve stem. The valve stem sleeve is installed on the upper part of the valve body to realize the installation of the valve stem. For a valve stem sleeve with a cylindrical shape, it may tilt when placed in the installation position, resulting in a stuck column and the position needs to be adjusted. The assembly is more inconvenient. At the same time, for smaller valves, the internal space is small and it is not easy to assemble. Utility Model Content

[0004] Purpose of the invention: The purpose of the utility model is to provide a valve stem sleeve structure that is easy to assemble.

[0005] Technical solution: It includes an outer sleeve, two mounting columns are provided on the inner side of the outer sleeve, a circular hole is provided in the middle of the mounting column, a guide plate is fixedly installed on the outer side of the outer sleeve, two pads are installed on the inner side of the outer sleeve, a valve stem is rotatably installed between the two pads, a pressure plate and a locking piece are installed on the top of the outer sleeve, the outer sleeve is made of stainless steel material, the outer sleeve is processed by lathe and milling machine, the pressure plate is ground, and the locking piece is formed by milling, the guide plate is wide at the top and narrow at the bottom, the outer side of the guide plate is arc-shaped, and the lower diameter is smaller than the upper outer diameter.

[0006] By adopting the above technical solution, a guide plate is provided on the outside of the outer sleeve. The guide plate can guide the outer sleeve into the interior of the valve by utilizing its own shape, avoid the outer sleeve from getting stuck in the column, and improve the convenience of valve stem assembly; an installation account is installed on the inner side of the outer sleeve, and a circular hole 1 is provided in the middle of the installation column. A clip can be installed in the circular hole 1, which makes it convenient to take out and put down the outer sleeve and facilitates assembly.

[0007] Optionally, the jacket includes a main body, a locking position is provided at the bottom of the main body, and the outer corners of the locking position are chamfered.

[0008] By adopting the above technical solution, the clamping position is used for installation of the lower part of the valve stem.

[0009] Optionally, a through hole 1 is provided in the middle of the body, and the inner diameter of the through hole 1 is larger than the outer diameter of the upper portion of the valve stem.

[0010] By adopting the above technical solution, the through hole 1 is used for the upper part of the valve stem to pass through, so that the valve stem can be installed on the inner side of the outer sleeve.

[0011] Optionally, a wear-resistant layer is provided on the inner side of the pad, and the wear-resistant layer is produced by electroplating.

[0012] By adopting the above technical solution, the wear-resistant layer is used to increase the wear-resistant properties and improve the service life of the pad.

[0013] Optionally, the valve stem includes a round rod, a stud is provided on the top of the round rod, a retaining ring and a clamping block are installed on the bottom of the round rod, and the bottom of the clamping block is chamfered.

[0014] By adopting the above technical solution, the stud is used to connect the handle, and the clamping block is used to connect the control component inside the valve.

[0015] Optionally, a processing hole is provided in the middle of the block, and the processing hole is 60 degrees.

[0016] By adopting the above technical solution, the processing hole is used for the insertion of the ejector pin, making the valve stem more stable when processing it.

[0017] Optionally, the pressure plate includes a circular ring, a through hole 2 is provided in the middle of the circular ring, and circular holes 2 are provided at both ends of the circular ring, and the inner diameter of the through hole 2 is larger than the outer diameter of the upper part of the valve stem.

[0018] By adopting the above technical solution, the second through hole is used for the passage of the valve stem, so that the pressure plate is installed on the upper part of the outer side of the valve stem, and the second circular hole is used for inserting the tool to realize the removal and placement of the pressure plate.

[0019] Optionally, the locking member includes a connecting ring, an external thread is provided at the bottom of the connecting ring, a locking plate is provided at the top of the connecting ring, a through hole three is provided in the middle of the connecting ring, and the pitch of the external thread is 1.5 mm.

[0020] By adopting the above technical solution, the external thread is used to be installed inside the valve, and the locking plate is used to screw the locking piece to achieve the fixation of the valve stem and the outer sleeve.

[0021] Beneficial effects: 1. The utility model is provided with a guide plate on the outside of the outer sleeve. The guide plate can guide the outer sleeve into the interior of the valve by utilizing its own shape, avoid the outer sleeve from getting stuck in the column, and improve the convenience of valve stem assembly; 2. An installation column is installed on the inner side of the outer sleeve, and a circular hole is provided in the middle of the installation column. Tools can be installed in the circular hole, which makes it convenient to take out and put down the outer sleeve and easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an overall structural diagram of an embodiment of the utility model;

[0023] Figure 2 This is a top view of the main body structure of an embodiment of the utility model;

[0024] Figure 3 This is a bottom view of the main body of an embodiment of the utility model;

[0025] Figure 4This is a diagram of the valve stem structure of an embodiment of the utility model;

[0026] Figure 5 This is a structural diagram of a locking member according to an embodiment of the present utility model;

[0027] Figure 6 This is a structural diagram of a pressure plate according to an embodiment of the present utility model;

[0028] Explanation of the accompanying reference numerals: 1. Outer sleeve; 11. Main body; 12. Guide plate; 13. Mounting column; 14. Spacer; 15. Wear-resistant layer; 16. Round hole one; 17. Through hole one; 18. Clamp; 2. Valve stem; 21. Round rod; 22. Stud; 23. Retaining ring; 24. Clamp; 25. Processing hole; 3. Locking piece; 31. Connecting ring; 32. Locking plate; 33. Through hole three; 34. External thread; 4. Pressure plate; 41. Ring; 42. Round hole two; 43. Through hole two. DETAILED DESCRIPTION

[0029] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. Figures 1 to 6 , including a sleeve 1, two mounting posts 13 are provided on the inner side of the sleeve 1, a circular hole 16 is provided in the middle of the mounting post 13, a guide plate 12 is fixedly installed on the outer side of the sleeve 1, two pads 14 are installed on the inner side of the sleeve 1, a valve stem 2 is rotatably installed between the two pads 14, a pressure plate 4 and a locking piece 3 are installed on the top of the sleeve 1, the utility model provides a guide plate 12 on the outer side of the sleeve 1, the guide plate 12 can guide the sleeve 1 into the interior of the valve by utilizing its own shape, avoid the sleeve 1 from getting stuck, and improve the convenience of assembling the valve stem 2; a mounting post 13 is installed on the inner side of the sleeve 1, a circular hole 16 is provided in the middle of the mounting post 13, tools can be installed in the circular hole 16, which is convenient for taking out and putting down the sleeve 1 and easy to assemble.

[0030] The outer sleeve 1 includes a body 11 , and a latch 18 is provided at the bottom of the body 11 . The latch 18 is used for installing the lower part of the valve stem 2 .

[0031] A through hole 17 is provided in the middle of the body 11 , and the through hole 17 is used for the upper part of the valve stem 2 to pass through, so that the valve stem 2 can be installed on the inner side of the outer sleeve 1 .

[0032] A wear-resistant layer 15 is provided inside the pad 14 , and the wear-resistant layer 15 is used to increase the wear resistance and extend the service life of the pad 14 .

[0033] The valve stem 2 includes a round rod 21, a stud 22 is provided on the top of the round rod 21, a retaining ring 23 and a block 24 are installed on the bottom of the round rod 21, the stud 22 is used to connect the handle, and the block 24 is used to connect the control components inside the valve.

[0034] A processing hole 25 is provided in the middle of the clamping block 24 , and the processing hole 25 is used for inserting an ejector pin, so as to make the valve stem 2 more stable when being processed.

[0035] The pressure plate 4 includes a circular ring 41, a through hole 43 is provided in the middle of the circular ring 41, and circular holes 42 are provided at both ends of the circular ring 41. The through hole 43 is used for the passage of the valve stem 2, so that the pressure plate 4 is installed on the upper part of the outer side of the valve stem 2, and the circular hole 42 is used to clamp the tool to realize the taking and placing of the pressure plate 4.

[0036] The locking member 3 includes a connecting ring 31, an external thread 34 is provided at the bottom of the connecting ring 31, a locking plate 32 is provided at the top of the connecting ring 31, and a through hole 33 is provided in the middle of the connecting ring 31. The external thread 34 is used to be installed inside the valve, and the locking plate 32 is used to screw the locking member 3 to achieve the fixation of the valve stem 2 and the outer sleeve 1.

[0037] The implementation principle of an easy-to-assemble valve stem sleeve structure in an embodiment of the present application is as follows: when assembling an easy-to-assemble valve stem sleeve structure, align the bottom of the valve stem 2 with the control component so that the clamping block 24 is connected to the control component inside the valve, and then the tool is inserted into the round hole 16, the outer sleeve 1 is installed on the round rod 21, the retaining ring 23 enters the inner side of the clamping position 18, and then two pads 14 are installed, and then the pressure plate 4 is installed on the upper part of the outer side of the valve stem 2, and finally the locking plate 32 is twisted to rotate the locking member 3, and the external thread 34 is installed inside the valve to complete the fixation of the valve stem 2.

[0038] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A valve stem sleeve structure that is easy to assemble, characterized by: The invention comprises a jacket (1), wherein two mounting posts (13) are provided on the inner side of the jacket (1), a circular hole (16) is provided in the middle of the mounting post (13), a guide plate (12) is fixedly installed on the outer side of the jacket (1), two pads (14) are installed on the inner side of the jacket (1), a valve stem (2) is rotatably installed between the two pads (14), and a pressure plate (4) and a locking member (3) are installed on the top of the jacket (1).

2. The easily assembled valve stem sleeve structure according to claim 1, characterized in that: The jacket (1) comprises a body (11), and a latching position (18) is provided at the bottom of the body (11).

3. The easily assembled valve stem sleeve structure according to claim 1, characterized in that: A through hole 1 (17) is provided in the middle of the body (11).

4. The easily assembled valve stem sleeve structure according to claim 1, characterized in that: A wear-resistant layer (15) is provided on the inner side of the cushion block (14).

5. The easily assembled valve stem sleeve structure according to claim 1, characterized in that: The valve stem (2) comprises a round rod (21), a stud (22) is provided on the top of the round rod (21), and a retaining ring (23) and a clamping block (24) are installed on the bottom of the round rod (21).

6. The easily assembled valve stem sleeve structure according to claim 5, characterized in that: A processing hole (25) is provided in the middle of the clamping block (24).

7. The easily assembled valve stem sleeve structure according to claim 1, characterized in that: The pressing plate (4) comprises a circular ring (41), a second through hole (43) is provided in the middle of the circular ring (41), and two circular holes (42) are provided at both ends of the circular ring (41).

8. The easily assembled valve stem sleeve structure according to claim 1, characterized in that: The locking member (3) comprises a connecting ring (31), the bottom of the connecting ring (31) is provided with an external thread (34), the top of the connecting ring (31) is provided with a locking plate (32), and the middle of the connecting ring (31) is provided with a third through hole (33).

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