Valve anti-disassembly mechanism and valve shell

Abstract

The utility model provides a valve anti-dismantlement mechanism and valve casing, including valve body and install on the valve body and be used for controlling the internal on-off of valve body's valve control subassembly, be equipped with first flange plate on the valve body, the valve control subassembly includes valve control seat, install the second flange plate at the lower end of valve control seat, be rotatingly provided on the valve control seat's valve control shaft, be equipped with the first flange plate and be equipped with the first flange plate. The first flange plate and the second flange plate are fixedly connected through distributed screws. The valve control assembly is provided with a second flange plate, the second flange plate is fixedly connected with the first flange plate through screws, the first flange plate and the second flange plate are provided with through insertion holes, and the protective sleeve shell is arranged at the outer ends of the first flange plate and the second flange plate in a sleeving mode so as to cover the screws at the outer end of the second flange plate, so that personnel disassembly and assembly are prevented. And the guide insertion piece is clamped and fixed with the clamping sleeve on the first flange plate, so that the protective sleeve shell is fixed, and the protective sleeve shell is prevented from being separated from the first flange plate and the second flange plate.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve anti-disassembly mechanism and a valve shell. Background Art

[0002] As an important pipeline control mechanism, valves will affect production and may cause safety problems if they are arbitrarily or intentionally disassembled. To prevent people from disassembling valves at will, it is necessary to install anti-disassembly structures on the valves. Existing anti-disassembly structures are difficult to install and easy to be cracked. Some of them may cause damage to the valves after violent disassembly, which will seriously affect subsequent use. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a valve anti-disassembly mechanism and a valve shell to solve the problems raised in the above background technology.

[0004] The technical problem solved by the utility model is achieved by adopting the following technical solutions: a valve anti-disassembly mechanism and a valve housing, comprising a valve body and a valve control component installed on the valve body for controlling the on-off of the inside of the valve body, the valve body is provided with a first flange plate, the valve control component comprises a valve control seat and a second flange plate installed at the lower end of the valve control seat, a valve control shaft rotatably arranged on the valve control seat, and the first flange plate and the second flange plate are fixedly connected by distributed screws;

[0005] The outer end of the valve control seat is provided with a protective sleeve, and a guide plug-in is elastically installed on the protective sleeve. The first flange plate and the second flange plate are correspondingly provided with plug holes, and a sleeve is embedded and installed in the plug hole of the first flange plate. The guide plug-in is inserted into the plug hole to be fixed with the sleeve, and the protective sleeve cover is set on the outer ends of the first flange plate and the second flange plate to prevent people from removing the screws.

[0006] As a further solution of the utility model:

[0007] The guide plug-in unit comprises a guide cylinder installed at the outer end of the protective sleeve, an insertion rod is elastically and slidably installed in the guide cylinder, a clamping cone is integrally provided at the outer end of the insertion rod, a barb is provided in the clamping sleeve, the clamping cone is inserted into the insertion hole by the push of the insertion rod, and is clamped and fixed with the barb of the clamping sleeve.

[0008] As a further solution of the utility model:

[0009] A spring is provided in the guide cylinder, and a slider is provided on the side of the insertion rod away from the cone body. The slider is slidably installed in the guide cylinder, and a limiting ring is provided at the lower end of the guide cylinder to limit the slider to prevent the slider from sliding out of the guide cylinder. One end of the spring is abutted against the upper end of the slider, and the other end is abutted against the inner wall of the guide cylinder, so that the insertion rod can be elastically slidably installed in the guide cylinder.

[0010] As a further solution of the utility model:

[0011] The first flange plate is provided with an external thread, and the inner side of the lower end of the protective sleeve is provided with an internal thread. The protective sleeve is threadedly connected to the first flange plate to drive the cone to move to the socket and insert it into the socket. The internal and external threads are used to prevent the protective sleeve from detaching from the first flange plate.

[0012] As a further solution of the utility model:

[0013] The outer end of the sleeve is provided with a barrel plate which abuts against the outer end of the first flange plate. The barb is installed in the inner cavity of the sleeve away from the barrel plate. The barb is an annular structure. When the cone is inserted into the sleeve, the barb is squeezed toward the inner wall of the sleeve. When the cone enters the sleeve, the barb abuts against the upper end of the cone to limit the cone from moving upward.

[0014] As a further solution of the utility model:

[0015] The lower end of the valve control shaft is threadedly connected to the valve core to drive the valve core to move up and down in the valve body. The valve body is provided with a corresponding core groove corresponding to the valve core. The upper end of the valve control shaft is fixedly connected to the rotary handle to control the rotation of the valve control shaft. The valve control shaft is located on the valve control seat and is provided with a limit assembly to prevent the valve control shaft from moving up and down on the valve control seat.

[0016] As a further solution of the utility model:

[0017] The upper end of the valve core is fixed with a screw sleeve threadedly connected to the lower end of the valve control shaft. The lower end of the valve core located at the screw sleeve is provided with a corresponding shaft groove corresponding to the valve control shaft, so that the valve core can be driven to move up and down through the rotation of the valve control shaft.

[0018] As a further solution of the utility model:

[0019] A limiting groove is provided on the inner side of the second flange plate, and the limiting assembly includes a limiting block fixedly installed at a corresponding position of the valve control shaft. A limiting bushing is provided on the second flange plate and inserted into the limiting groove to prevent the limiting block from moving up and down.

[0020] Compared with the prior art, the utility model has the following beneficial effects: the valve control assembly is provided with a second flange plate, the second flange plate is fixedly connected to the first flange plate by screws, the first flange plate and the second flange plate are provided with through-holes, the protective sleeve is sleeved on the outer ends of the first flange plate and the second flange plate to cover the screws on the outer ends of the second flange plate to prevent personnel from disassembling and assembling, and the guide plug is clamped and fixed with the clamp sleeve on the first flange plate to fix the protective sleeve to prevent the protective sleeve from being separated from the first flange plate and the second flange plate. The clamping cone on the protective sleeve is set against the outer end of the first flange plate, pressing the protective sleeve to make the threaded connection between the protective sleeve and the first flange plate, and during the rotation of the protective sleeve, the clamping cone moves to the position of the jack, and the clamping cone is inserted into the jack under the action of the spring, and the barb is pushed away, so that the clamping cone is clamped and fixed with the barb to prevent the plug rod from being separated from the jack. If personnel violently dismantle the protective sleeve, they only need to replace the guide plug and the clamp sleeve, which will not affect the use of the valve body and the valve control assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;

[0023] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0024] Figure 4 This is a schematic diagram of the second flange plate installation structure of the utility model;

[0025] Markings in the figure: 1. Valve body; 2. Valve control seat; 3. Protective sleeve; 4. Cardan sleeve; 11. First flange plate; 12. Socket; 21. Second flange plate; 22. Valve control shaft; 23. Valve core; 24. Rotary handle; 25. Screw sleeve; 26. Limit block; 27. Limit bushing; 31. Guide cylinder; 32. Insert rod; 33. Cardan cone; 34. Limit ring; 35. Spring; 36. Slider; 41. Cylinder plate; 42. Barb body. DETAILED DESCRIPTION

[0026] In order to make the technical means for realizing the utility model, creative features, objectives and effects easy to understand, the utility model is further explained below with reference to specific illustrations.

[0027] like Figures 1 to 4 As shown,

[0028] This embodiment provides a valve anti-disassembly mechanism and a valve housing, including a valve body 1 and a valve control component installed on the valve body 1 for controlling the on-off of the inside of the valve body 1, wherein the valve body 1 is provided with a first flange plate 11, and the valve control component includes a valve control seat 2 and a second flange plate 21 installed at the lower end of the valve control seat 2, and a valve control shaft 22 rotatably arranged on the valve control seat 2, and the first flange plate 11 and the second flange plate 21 are fixedly connected by distributed screws;

[0029] The outer end of the valve control seat 2 is sleeved with a protective sleeve 3, on which a guide plug is elastically installed. The first flange plate 11 and the second flange plate 21 are correspondingly provided with plug holes 12, and a clamping sleeve 4 is embedded and installed in the plug hole 12 of the first flange plate 11. The guide plug is inserted into the plug hole 12 to be clamped and fixed with the clamping sleeve 4, and the protective sleeve 3 is covered on the outer ends of the first flange plate 11 and the second flange plate 21 to prevent people from removing the screws.

[0030] In this embodiment, the guide plug-in unit includes a guide cylinder 31 installed at the outer end of the protective sleeve 3, and an insertion rod 32 is elastically and slidably installed in the guide cylinder 31. The outer end of the insertion rod 32 is integrally provided with a clamping cone 33, and a barb 42 is provided in the clamping sleeve 4. The clamping cone 33 is inserted into the socket 12 by the push of the insertion rod 32, and is clamped and fixed with the barb 42 of the clamping sleeve 4.

[0031] A spring 35 is provided in the guide cylinder 31, and a slider 36 is provided on the side of the insertion rod 32 away from the cone 33. The slider 36 is slidably installed in the guide cylinder 31. A limiting ring 34 is provided at the lower end of the guide cylinder 31 to limit the slider 36 to prevent the slider 36 from sliding out of the guide cylinder 31. One end of the spring 35 is abutted against the upper end of the slider 36, and the other end is abutted against the inner wall of the guide cylinder 31, so that the insertion rod 32 can be elastically slidably installed in the guide cylinder 31.

[0032] In this embodiment, the first flange plate 11 is provided with an external thread, and the inner side of the lower end of the protective sleeve 3 is provided with an internal thread. The protective sleeve 3 is threadedly connected to the first flange plate 11 to drive the cone 33 to move to the socket 12 and insert it into the socket 12. The internal and external threads are used to prevent the protective sleeve 3 from detaching from the first flange plate 11.

[0033] In this embodiment, the outer end of the sleeve 4 is provided with a barrel plate 41 which is abutted against the outer end of the first flange plate 11, and the barb body 42 is installed in the inner cavity of the sleeve 4 away from the barrel plate 41. The barb body 42 is an annular structure. When the cone body 33 is inserted into the sleeve 4, the barb body 42 is squeezed toward the inner wall of the sleeve 4. When the cone body 33 enters the sleeve 4, the barb body 42 abuts against the upper end of the cone body 33 to limit the upward movement of the cone body 33.

[0034] In this embodiment, the lower end of the valve control shaft 22 is threadedly connected to the valve core 23 to drive the valve core 23 to move up and down in the valve body 1. The valve body 1 is provided with a corresponding core groove corresponding to the valve core 23. The upper end of the valve control shaft 22 is fixedly connected to the handle 24 to control the rotation of the valve control shaft 22. The valve control shaft 22 is located on the valve control seat 2 and is provided with a limit assembly to prevent the valve control shaft 22 from moving up and down on the valve control seat 2.

[0035] The upper end of the valve core 23 is fixedly provided with a screw sleeve 25 threadedly connected to the lower end of the valve control shaft 22. The valve core 23 is located at the lower end of the screw sleeve 25 and a corresponding shaft groove is opened corresponding to the valve control shaft 22, so that the valve core 23 can be driven to move up and down through the rotation of the valve control shaft 22.

[0036] In this embodiment, a limit groove is provided on the inner side of the second flange plate 21, and the limit assembly includes a limit block 26 fixedly installed at the corresponding position of the valve control shaft 22. The second flange plate 21 is provided with a limit bushing 27 inserted into the limit groove to prevent the limit block 26 from moving up and down.

[0037] The working principle of the utility model is as follows: the valve control component is provided with a second flange plate 21, the second flange plate 21 is fixedly connected to the first flange plate 11 by screws, the first flange plate 11 and the second flange plate 21 are provided with a through-hole 12, the protective shell 3 is sleeved on the outer ends of the first flange plate 11 and the second flange plate 21 to cover the screws at the outer ends of the second flange plate 21 to prevent personnel from disassembling and assembling, and is clamped and fixed with the clamping sleeve 4 on the first flange plate 11 through the guide plug-in to fix the protective shell 3 to prevent the protective shell 3 from being separated from the first flange plate 11 and the second flange plate 21. The clamping cone 33 on the protective sleeve 3 is set against the outer end of the first flange plate 11, pressing the protective sleeve 3 to make the protective sleeve 3 and the first flange plate 11 threadedly connected. During the rotation of the protective sleeve 3, the clamping cone 33 moves to the position of the plug hole 12. The clamping cone 33 is inserted into the plug hole 12 under the action of the spring 35, and the barb 42 is pushed open, so that the clamping cone 33 and the barb 42 are clamped and fixed to prevent the plug rod 32 from escaping from the plug hole 12. If a person violently disassembles the protective sleeve 3, he only needs to replace the guide plug and the clamping sleeve 4, which will not affect the use of the valve body 1 and the valve control assembly.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will also have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. It should be noted that in this article, if there are first and second relationship terms such as only used to distinguish one entity or operation from another entity or operation, it does not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or equipment. Without more constraints, an element defined by the phrase "comprising a..." does not exclude the existence of other identical elements in the process, method, article or apparatus comprising the element.

Claims

1. A valve anti-disassembly mechanism and a valve housing, comprising a valve body and a valve control assembly mounted on the valve body for controlling the on-off of the valve body, wherein the valve body is provided with a first flange plate, the valve control assembly comprises a valve control seat and a second flange plate mounted at the lower end of the valve control seat, and a valve control shaft rotatably arranged on the valve control seat, the first flange plate and the second flange plate are fixedly connected by distributed screws, characterized in that: The outer end of the valve control seat is provided with a protective sleeve, and a guide plug-in is elastically installed on the protective sleeve. The first flange plate and the second flange plate are correspondingly provided with plug holes, and a sleeve is embedded and installed in the plug hole of the first flange plate. The guide plug-in is inserted into the plug hole to be fixed with the sleeve, and the protective sleeve cover is set on the outer ends of the first flange plate and the second flange plate to prevent people from removing the screws.

2. A valve anti-disassembly mechanism and valve housing according to claim 1, characterized in that: The guide plug-in unit comprises a guide cylinder installed at the outer end of the protective sleeve, an insertion rod is elastically and slidably installed in the guide cylinder, a clamping cone is integrally provided at the outer end of the insertion rod, a barb is provided in the clamping sleeve, the clamping cone is inserted into the insertion hole by the push of the insertion rod, and is clamped and fixed with the barb of the clamping sleeve.

3. A valve anti-disassembly mechanism and valve housing according to claim 2, characterized in that: A spring is provided in the guide cylinder, and a slider is provided on the side of the insertion rod away from the cone body. The slider is slidably installed in the guide cylinder, and a limiting ring is provided at the lower end of the guide cylinder to limit the slider to prevent the slider from sliding out of the guide cylinder. One end of the spring is abutted against the upper end of the slider, and the other end is abutted against the inner wall of the guide cylinder, so that the insertion rod can be elastically slidably installed in the guide cylinder.

4. A valve anti-disassembly mechanism and valve housing according to claim 3, characterized in that: The first flange plate is provided with an external thread, and the inner side of the lower end of the protective sleeve is provided with an internal thread. The protective sleeve is threadedly connected to the first flange plate to drive the cone to move to the socket and insert it into the socket. The internal and external threads are used to prevent the protective sleeve from detaching from the first flange plate.

5. A valve anti-disassembly mechanism and valve housing according to claim 3, characterized in that: The outer end of the sleeve is provided with a barrel plate which abuts against the outer end of the first flange plate. The barb is installed in the inner cavity of the sleeve away from the barrel plate. The barb is an annular structure. When the cone is inserted into the sleeve, the barb is squeezed toward the inner wall of the sleeve. When the cone enters the sleeve, the barb abuts against the upper end of the cone to limit the cone from moving upward.

6. A valve anti-disassembly mechanism and valve housing according to claim 1, characterized in that: The lower end of the valve control shaft is threadedly connected to the valve core to drive the valve core to move up and down in the valve body. The valve body is provided with a corresponding core groove corresponding to the valve core. The upper end of the valve control shaft is fixedly connected to the rotary handle to control the rotation of the valve control shaft. The valve control shaft is located on the valve control seat and is provided with a limit assembly to prevent the valve control shaft from moving up and down on the valve control seat.

7. A valve anti-disassembly mechanism and valve housing according to claim 6, characterized in that: The upper end of the valve core is fixed with a screw sleeve threadedly connected to the lower end of the valve control shaft. The lower end of the valve core located at the screw sleeve is provided with a corresponding shaft groove corresponding to the valve control shaft, so that the valve core can be driven to move up and down through the rotation of the valve control shaft.

8. A valve anti-disassembly mechanism and valve housing according to claim 6, characterized in that: A limiting groove is provided on the inner side of the second flange plate, and the limiting assembly includes a limiting block fixedly installed at a corresponding position of the valve control shaft. A limiting bushing is provided on the second flange plate and inserted into the limiting groove to prevent the limiting block from moving up and down.

Images