Leak-proof high-performance butterfly valve rod

Abstract

The utility model relates to the technical field of butterfly valves, in particular to a leakproof high-performance butterfly valve rod which comprises a valve rod body, a connecting hole is formed in the top of the valve rod body, a plurality of oil outlets are evenly formed in the outer side wall of the valve rod body, and a rubber sleeve is arranged on the outer side of the valve rod body. According to the anti-leakage high-performance butterfly valve rod, the oil injection mechanism is arranged at the top of the extension shell, the extension shell is rotated to move, then the overall length of the anti-leakage high-performance butterfly valve rod can be adjusted conveniently, and the anti-leakage high-performance butterfly valve rod can be suitable for different use environments; according to the anti-leakage high-performance butterfly valve rod, the practicability of the anti-leakage high-performance butterfly valve rod is improved, lubricating oil can conveniently flow into the position between the valve rod body and the rubber sleeve through the oil injection mechanism, normal use of the anti-leakage high-performance butterfly valve rod is guaranteed, lubricating oil injection is easier and more convenient, the oil injection mechanism can conveniently control injection of the lubricating oil at any time, and the service life of the anti-leakage high-performance butterfly valve rod is prolonged. And the injection amount of lubricating oil can be conveniently controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a leakage-proof high-performance butterfly valve stem. Background Art

[0002] Most of the existing butterfly valve stems have a simple structure and are mostly a single stem body. When in use, the length of the valve stem cannot be adjusted, making the valve stem unsuitable for different use sites. For narrow gaps, a valve stem that is too short or too long will affect the use of the valve. At the same time, when the butterfly valve stem is in use, it is necessary to inject oil into the valve body for lubrication so that the valve stem can rotate normally. However, the existing valve stem cannot be directly injected with oil for lubrication, and the use effect is poor. Utility Model Content

[0003] The utility model aims to provide a high-performance butterfly valve stem which is leak-proof.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A leak-proof high-performance butterfly valve stem comprises a valve stem body, a connecting hole is provided at the top of the valve stem body, and a plurality of oil outlets are evenly provided on the outer wall of the valve stem body, a rubber sleeve is provided on the outer side of the valve stem body, a fixing block is fixedly connected to the middle position of the inner bottom surface of the valve stem body, and a delivery hole is provided on the fixing block, a fixing shell is sleeved and fixed to the top of the outer wall of the fixing block, and the top of the fixing shell is fixedly connected to the inner top surface of the valve stem body, an externally threaded pipe is fixedly connected to the inner bottom surface of the fixing shell, an extension shell is screwed on the outer side of the externally threaded pipe, and the outer side of the extension shell is slidably connected to the inner wall of the connecting hole, a circular hole is provided on the top of the extension shell, and an oil injection mechanism is provided on the top of the extension shell.

[0006] Furthermore, both ends of the outer side of the valve stem body are provided with limiting notches, and the inside of the limiting notches is rotatably connected to the limiting rings, and the two ends of the inner side wall of the rubber sleeve are respectively fixedly connected to the limiting rings at corresponding positions.

[0007] Furthermore, the outer side wall of the extension shell is symmetrically provided with limit grooves, the top of the valve stem body is symmetrically fixedly connected with a connecting shell, and one end of the connecting shell is in contact with the outer side wall of the extension shell, an inner side wall of the connecting shell is fixedly connected with a compression spring, and one end of the compression spring is fixedly connected with an L-shaped plate, one end of the L-shaped plate is slidably connected to the limit groove at the corresponding position, and the bottom of the L-shaped plate is slidably connected to the inside of the connecting shell.

[0008] Furthermore, the oil filling mechanism includes a storage shell, the bottom of the storage shell contacts the top of the extension shell, the bottom of the storage shell is connected and fixed with a sleeve, and the sleeve is slidably connected to the circular hole, the interior of the storage shell is slidably connected with a piston, the inner top surface of the storage shell is fixedly connected with a motor, and the output end of the motor is fixedly connected with a threaded block, the outer side wall of the threaded block is screwed and connected with an internal threaded tube, and the bottom of the internal threaded tube is fixedly connected to the top of the piston, a plurality of limiting holes are opened on the internal threaded tube, and the internal sliding connection of the limiting hole is a limiting rod, the top of the limiting rod is fixedly connected to the inner top surface of the storage shell, the top of the inner side of the storage shell is fixedly connected with a partition plate, the bottom of the partition plate is connected and fixed with an electric control valve, and the bottom of the electric control valve is connected and fixed to the top of the sleeve.

[0009] Furthermore, the outer diameter of the internally threaded tube is smaller than the inner diameter of the storage shell, and the outer diameter of the storage shell is the same as the outer diameter of the extension shell.

[0010] Furthermore, a fixing ring 2 is sleeved and fixed on the bottom of the outer wall of the storage shell, and a plurality of threaded holes 2 are evenly opened on the fixing ring 2, a fixing ring 1 is sleeved and fixed on the top of the outer wall of the extension shell, and a plurality of threaded holes 1 are evenly opened on the fixing ring 1, and a plurality of fixing bolts are evenly arranged on the outside of the storage shell, and one end of the fixing bolt is screwed and connected with the threaded hole 1 and the threaded hole 2 at the corresponding position.

[0011] Furthermore, a fixing tube is fixedly connected to the fixing block at a position corresponding to the conveying hole, and the fixing tube is slidably connected to the inside of the sleeve.

[0012] Beneficial effects of the utility model:

[0013] 1. An oil injection mechanism is provided on the top of the extension shell, and the extension shell is moved by rotating the extension shell, so as to facilitate adjustment of the overall length of the valve stem of the leak-proof high-performance butterfly valve, so that the valve stem of the leak-proof high-performance butterfly valve can be suitable for different use environments, thereby improving the practicality of the valve stem of the leak-proof high-performance butterfly valve. The oil injection mechanism is then used to facilitate the flow of lubricating oil into between the valve stem body and the rubber sleeve, thereby ensuring the normal use of the valve stem of the leak-proof high-performance butterfly valve, and the injection of lubricating oil is simpler and more convenient, and the oil injection mechanism is convenient for controlling the injection of lubricating oil at any time, and is convenient for controlling the injection amount of lubricating oil. When the oil injection mechanism is finished with use or is damaged, it is convenient to disassemble and replace, and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2It is a schematic diagram of the positional relationship between the extension shell and the externally threaded pipe in the utility model;

[0017] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

[0018] Figure 4 It is a schematic diagram of the positional relationship between the rubber sleeve and the limiting ring in the utility model;

[0019] Figure 5 It is a schematic diagram of the positional relationship between the valve stem body and the extension shell in the utility model;

[0020] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle;

[0021] Figure 7 It is a structural schematic diagram of the oil injection mechanism in the utility model.

[0022] In the figure: 100, valve stem body; 101, oil outlet; 102, limiting notch; 110, rubber sleeve; 111, limiting ring; 120, extension shell; 122, round hole; 123, limiting groove; 130, fixing ring one; 140, external threaded pipe; 150, fixing pipe; 160, fixing block; 161, conveying hole; 170, fixing shell; 180, connecting shell; 181, L-shaped plate; 182, compression spring; 200, oil injection mechanism; 210, storage shell; 211, partition plate; 220, sleeve; 230, motor; 231, threaded block; 240, internal threaded pipe; 241, limiting hole; 250, limiting rod; 260, piston; 270, fixing ring two; 280, fixing bolt; 290, electric control valve. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-7As shown, a leak-proof high-performance butterfly valve stem comprises a valve stem body 100, a connecting hole is provided at the top of the valve stem body 100, and a plurality of oil outlets 101 are evenly provided on the outer wall of the valve stem body 100, a rubber sleeve 110 is provided on the outer side of the valve stem body 100, a fixing block 160 is fixedly connected at the middle position of the inner bottom surface of the valve stem body 100, and a conveying hole 161 is provided on the fixing block 160, a fixing shell 170 is sleeved and fixed at the top of the outer wall of the fixing block 160, and the top of the fixing shell 170 is fixedly connected to the inner top surface of the valve stem body 100, an external threaded tube 140 is fixedly connected to the inner bottom surface of the fixing shell 170, an extension shell 120 is screwed and connected to the outer side of the external threaded tube 140, and the outer side of the extension shell 120 is slidably connected to the inner side wall of the connecting hole, a round hole 122 is provided on the top of the extension shell 120, and an oil injection mechanism 200 is provided on the top of the extension shell 120, When in use, the leak-proof high-performance butterfly valve stem is placed in an appropriate position, and the extension shell 120 is rotated, and the extension shell 120 is screwed together with the external threaded tube 140, so that the extension shell 120 is moved, and then the overall length of the leak-proof high-performance butterfly valve stem is adjusted, so that the leak-proof high-performance butterfly valve stem can be suitable for different use environments, thereby improving the practicality of the leak-proof high-performance butterfly valve stem, and the oil injection mechanism 200 is used to facilitate the flow of lubricating oil into between the valve stem body 100 and the rubber sleeve 110, thereby ensuring the normal use of the leak-proof high-performance butterfly valve stem, and the injection of lubricating oil is simpler and more convenient, and the oil injection mechanism 200 is convenient for controlling the injection of lubricating oil at any time, and is convenient for controlling the injection amount of lubricating oil, and when the oil injection mechanism 200 is finished or damaged, it is convenient to disassemble and replace, and it is more convenient to use.

[0025] Both ends of the outer side of the valve stem body 100 are provided with a limit notch 102, and the inner rotation of the limit notch 102 is connected to the limit ring 111, and the two ends of the inner wall of the rubber sleeve 110 are respectively fixedly connected to the limit ring 111 at the corresponding position, and the limit ring 111 and the limit notch 102 are used together to facilitate the limit support of the rubber sleeve 110, and the outer side wall of the extension shell 120 is symmetrically provided with a limit groove 123, and the top of the valve stem body 100 is symmetrically fixedly connected with a connecting shell 180, and the connecting shell One end of 180 contacts the outer side wall of the extension shell 120, an inner side wall of the connecting shell 180 is fixedly connected with a compression spring 182, and one end of the compression spring 182 is fixedly connected with an L-shaped plate 181, one end of the L-shaped plate 181 is slidably connected with the limiting groove 123 at the corresponding position, and the bottom of the L-shaped plate 181 is slidably connected with the inside of the connecting shell 180, and the connecting shell 180, the L-shaped plate 181, the compression spring 182 and the limiting groove 123 are used together to facilitate the limitation of the extension shell 120.

[0026] The oil filling mechanism 200 includes a storage shell 210, the bottom of the storage shell 210 contacts the top of the extension shell 120, the bottom of the storage shell 210 is connected and fixed with a sleeve 220, and the sleeve 220 is slidably connected to the circular hole 122, the interior of the storage shell 210 is slidably connected with a piston 260, the inner top surface of the storage shell 210 is fixedly connected with a motor 230, and the output end of the motor 230 is fixedly connected with a threaded block 231, the outer side wall of the threaded block 231 is screwed and connected with an internal threaded tube 240, and the bottom of the internal threaded tube 240 is fixedly connected to the top of the piston 260, a plurality of limiting holes 241 are opened on the internal threaded tube 240, and the inner sliding of the limiting holes 241 is The limit rod 250 is dynamically connected, the top of the limit rod 250 is fixedly connected to the inner top surface of the storage shell 210, the top of the inner side of the storage shell 210 is fixedly connected with a partition plate 211, the bottom of the partition plate 211 is connected and fixed with an electric control valve 290, and the bottom of the electric control valve 290 is connected and fixed with the top of the sleeve 220, the fixed block 160 is fixedly connected with a fixed pipe 150 at the position corresponding to the conveying hole 161, and the fixed pipe 150 is slidably connected with the inside of the sleeve 220, the outer diameter of the internal threaded pipe 240 is smaller than the inner diameter of the storage shell 210, and the outer diameter of the storage shell 210 is the same as the outer diameter of the extension shell 120, by starting the motor 230, the motor 230 is driven The threaded block 231 rotates, and the threaded block 231 is screwed and connected with the internal threaded tube 240, and the limiting hole 241 and the limiting rod 250 are used in combination to limit the internal threaded tube 240, so that the internal threaded tube 240 and the piston 260 move, and then the moving piston 260 is used to facilitate the lubricating oil between the storage shell 210 and the partition plate 211 to flow into the interior of the electric control valve 290, and the electric control valve 290 is opened, so that the lubricating oil flows through the sleeve 220, the fixed tube 150 and the delivery hole 161. The lubricating oil is then used to flow out and flow into the fixed shell 170 and the valve stem body 100. Between the valve stem body 100 and the rubber sleeve 110, a fixing ring 270 is fixedly sleeved on the bottom of the outer wall of the storage shell 210, and a plurality of threaded holes 2 are evenly opened on the fixing ring 270, and a fixing ring 130 is fixedly sleeved on the top of the outer wall of the extension shell 120, and a plurality of threaded holes 1 are evenly opened on the fixing ring 130, and a plurality of fixing bolts 280 are evenly arranged on the outside of the storage shell 210, and one end of the fixing bolt 280 is screwed and connected with the threaded hole 1 and the threaded hole 2 at the corresponding position, and the fixing ring 1 130, the fixing ring 270 and the fixing bolt 280 are used together to facilitate the installation and fixation of the oil injection mechanism 200.

[0027] Working principle: When in use, the high-performance butterfly valve stem with anti-leakage is placed in an appropriate position, and the two L-shaped plates 181 are pulled to separate the L-shaped plates 181 from the limiting grooves 123, and the extension shell 120 is rotated, and the extension shell 120 is screwed and connected with the external threaded tube 140, so that the extension shell 120 is moved, thereby facilitating the adjustment of the overall length of the high-performance butterfly valve stem with anti-leakage, so that the high-performance butterfly valve stem with anti-leakage can be applied to different use environments, improving The practicability of the high-performance butterfly valve stem with anti-leakage is improved. When the extension shell 120 moves to an appropriate position, the L-shaped plate 181 is loosened, and the compression spring 182 is used to push the L-shaped plate 181 to reset, so that the L-shaped plate 181 is plugged into the limiting groove 123 at the corresponding position, thereby limiting the extension shell 120, and preventing the extension shell 120 from rotating due to accidental contact. When the high-performance butterfly valve stem with anti-leakage is used, the motor 230 is started to drive the threaded block 231 to rotate. The threaded block 231 is screwed and connected with the internal threaded tube 240, and the limiting hole 241 and the limiting rod 250 are used in combination to limit the internal threaded tube 240, so that the internal threaded tube 240 and the piston 260 are moved, and then the moving piston 260 is used to facilitate the lubricating oil between the storage shell 210 and the partition plate 211 to flow into the inside of the electric control valve 290, and the electric control valve 290 is opened, so that the lubricating oil flows into the fixed shell 170 and the delivery hole 161 through the sleeve 220, the fixed tube 150 and the delivery hole 161. Between the valve stem body 100, multiple oil outlets 101 are used to facilitate the lubricating oil to flow out and flow into the valve stem body 100 and the rubber sleeve 110, thereby ensuring the normal use of the leak-proof high-performance butterfly valve stem, and injecting lubricating oil is simpler and more convenient. By controlling the motor 230, it is convenient to control the injection of lubricating oil at any time, and it is convenient to control the injection amount of lubricating oil. When the oil injection mechanism 200 is finished with use or damaged, the fixing bolts 280 can be unscrewed, thereby facilitating the disassembly and replacement of the oil injection mechanism 200.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] The above contents are merely examples and explanations of the present utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the present utility model.

Claims

1. A high-performance butterfly valve stem with anti-leakage properties, comprising a valve stem body (100), characterized in that: A connecting hole is provided at the top of the valve stem body (100), and a plurality of oil outlets (101) are evenly provided on the outer wall of the valve stem body (100). A rubber sleeve (110) is provided on the outer side of the valve stem body (100). A fixing block (160) is fixedly connected to the middle position of the inner bottom surface of the valve stem body (100), and a conveying hole (161) is provided on the fixing block (160). A fixing shell (170) is sleeved and fixed to the top of the outer wall of the fixing block (160). ), and the top of the fixed shell (170) is fixedly connected to the inner top surface of the valve stem body (100), the inner bottom surface of the fixed shell (170) is fixedly connected to an external threaded tube (140), the outer side of the external threaded tube (140) is screwedly connected to an extension shell (120), and the outer side of the extension shell (120) is slidably connected to the inner side wall of the connecting hole, the top of the extension shell (120) is provided with a circular hole (122), and the top of the extension shell (120) is provided with an oil injection mechanism (200).

2. A leak-proof high-performance butterfly valve stem according to claim 1, characterized in that: Both ends of the outer side of the valve stem body (100) are provided with limiting notches (102), and the inside of the limiting notch (102) is rotatably connected to a limiting ring (111), and both ends of the inner side wall of the rubber sleeve (110) are respectively fixedly connected to the limiting ring (111) at corresponding positions.

3. A high-performance butterfly valve stem with anti-leakage according to claim 1, characterized in that: The outer side wall of the extension shell (120) is symmetrically provided with a limit groove (123); the top of the valve stem body (100) is symmetrically fixedly connected with a connecting shell (180), and one end of the connecting shell (180) is in contact with the outer side wall of the extension shell (120); an inner side wall of the connecting shell (180) is fixedly connected with a compression spring (182), and one end of the compression spring (182) is fixedly connected with an L-shaped plate (181); one end of the L-shaped plate (181) is slidably connected with the limit groove (123) at a corresponding position, and the bottom of the L-shaped plate (181) is slidably connected with the inside of the connecting shell (180).

4. A leak-proof high-performance butterfly valve stem according to claim 1, characterized in that: The oil injection mechanism (200) comprises a storage shell (210), the bottom of the storage shell (210) contacts the top of the extension shell (120), the bottom of the storage shell (210) is connected and fixed with a sleeve (220), and the sleeve (220) is slidably connected to the circular hole (122), the interior of the storage shell (210) is slidably connected with a piston (260), the inner top surface of the storage shell (210) is fixedly connected with a motor (230), and the output end of the motor (230) is fixedly connected with a threaded block (231), and the outer wall of the threaded block (231) is screwed with an internal thread The inner threaded tube (240) is provided with a plurality of limit holes (241), and the limit holes (241) are internally slidably connected to a limit rod (250), the top of the limit rod (250) is fixedly connected to the inner top surface of the storage shell (210), the top of the inner side of the storage shell (210) is fixedly connected to a partition plate (211), the bottom of the partition plate (211) is connected to and fixed with an electric control valve (290), and the bottom of the electric control valve (290) is connected to and fixed with the top of the sleeve (220).

5. A leak-proof high-performance butterfly valve stem according to claim 4, characterized in that: The outer diameter of the internally threaded tube (240) is smaller than the inner diameter of the storage shell (210), and the outer diameter of the storage shell (210) is the same as the outer diameter of the extension shell (120).

6. A leak-proof high-performance butterfly valve stem according to claim 4, characterized in that: A fixing ring 2 (270) is sleeved and fixed to the bottom of the outer wall of the storage shell (210), and a plurality of threaded holes 2 are evenly arranged on the fixing ring 2 (270); a fixing ring 1 (130) is sleeved and fixed to the top of the outer wall of the extension shell (120), and a plurality of threaded holes 1 are evenly arranged on the fixing ring 1 (130); a plurality of fixing bolts (280) are evenly arranged on the outer side of the storage shell (210), and one end of the fixing bolt (280) is screwed and connected to the threaded hole 1 and the threaded hole 2 at corresponding positions.

7. The anti-leakage high-performance butterfly valve stem according to claim 1, characterized in that: A fixing tube (150) is fixedly connected to the fixing block (160) at a position corresponding to the delivery hole (161), and the fixing tube (150) is slidably connected to the inside of the sleeve (220).

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