A valve cover structure

Abstract

The utility model provides a valve cover structure relates to valve body technical field, including valve body, the upside of valve core is installed with valve cover subassembly, valve cover subassembly includes the connecting sleeve of welding in the outside of valve core, the inside of connecting sleeve is installed with threaded connection cover, the upside of threaded connection cover is welded with valve cover cover, threaded connection cover and connecting sleeve are embedded and are screwed tightly fixed, can effectively promote the sealing performance of valve cover subassembly, can reduce the rust phenomenon of medium to connecting sleeve and threaded connection cover contact surface simultaneously, and copper layer has good corrosion resistance and lubricating effect, can also be easily unscrewed when needing to open in the later period, and the inside and outside two group sealing rubber rings of threaded connection cover form inside and outside double seal structure, can effectively prevent medium from flowing into connecting sleeve and threaded connection cover, thereby improving overall sealing effect, and metal gasket plays the role of enhancing sealing rubber ring support strength.

Description

Technical Field

[0001] This utility model relates to the field of valve body technology, and in particular to a valve cover structure. Background Technology

[0002] The valve cover is an important component of a valve, usually located at the top of the valve body. It serves to seal and protect the internal components of the valve (such as the valve stem and valve core). It is connected to the valve body by bolts, threads, or flanges, and can be disassembled as needed to facilitate the inspection and replacement of internal valve parts. At the same time, the valve cover also prevents media leakage and maintains the pressure environment during valve operation. Its material must be compatible with the valve body and the medium being transported to adapt to different operating conditions. It is one of the key components to ensure the normal operation of the valve.

[0003] A search revealed that the announcement number "CN222669104U" mentions "this utility model discloses a magnetic valve cover structure, belonging to the field of valve covers. The magnetic valve cover structure includes a valve body, with a valve cover at the top of the valve body. A pair of connecting blocks are fixedly installed at the top of the valve body. A pair of cavities are opened at the bottom of the valve cover. One end of the connecting block is inserted into the cavity through a through groove. A sliding groove is opened at the top of the cavity. A strong magnet is engaged in the sliding groove. A connecting block is fixedly installed at the bottom of the strong magnet. A locking block is fixedly installed on the side of the connecting block and the locking block that are close to each other. The two locking blocks are engaged and connected. The ends of the two locking blocks that are far apart from each other are sloped. A pair of magnetic grooves are opened at the top of the valve cover, and the positions of the pair of magnetic grooves and the sliding groove are symmetrical." In use, this allows for quick connection and disassembly of the valve cover and valve body, while also facilitating subsequent maintenance of the valve body by the operator.

[0004] However, in practical applications, the valve cover, as a key component for valve sealing performance, often serves as a seal to reduce media outflow and prevent external impurities from entering the valve body, thus ensuring the safety and stability of valve operation. However, most valve covers nowadays adopt a single-layer sealing design, which has limited sealing effect. Furthermore, the spiral connection position is prone to corrosion due to sealing structure problems, affecting the service life and sealing performance of the valve. In addition, when the valve cover corrodes, it will stick to the valve body, making disassembly difficult and increasing the resistance to force.

[0005] Therefore, we provide a valve cover structure to solve the above problems. Utility Model Content

[0006] To achieve the above objectives, this utility model provides the following technical solution: A valve cover structure includes a valve body, a valve core disposed in the middle of the upper side of the valve body, a valve cover assembly mounted on the upper side of the valve core, the valve cover assembly including a connecting sleeve welded to the outside of the valve core, a threaded connecting sleeve mounted on the inner side of the connecting sleeve, and a valve cover body welded to the upper side of the threaded connecting sleeve.

[0007] As a further description of the above technical solution: The threaded connecting sleeve and the connecting ferrule are connected by a thread. The connecting ferrule has an inner concave structure, and the threaded connecting sleeve has an outer convex structure. The connecting ferrule and the threaded connecting sleeve are interlocked. The surface of the threaded connecting sleeve is plated with a copper film.

[0008] As a further description of the above technical solution: The threaded connecting sleeve is provided with retaining rings on both the inner and outer sides. A metal gasket is connected to the inner groove of the retaining ring. A sealing ring is provided on the lower side of the metal gasket. The sealing ring, the metal gasket and the retaining ring form a sealing cavity. There are two sets of sealing rings, inner and outer.

[0009] As a further description of the above technical solution: The outer side of the valve cover is welded with a force-bearing retaining edge, which is a hexagonal structure.

[0010] As a further description of the above technical solution: An observation window is welded to the middle of the upper side of the valve cover. The observation window is made of transparent high-temperature resistant glass and has a circular hole structure.

[0011] As a further description of the above technical solution: Force-bearing brackets are provided on both the front and rear sides of the observation window. A force-generating steel bar runs through the middle of the force-bearing bracket. The force-bearing brackets are arranged symmetrically in two sets, and the force-generating steel bar works with the force-bearing brackets to form a force-saving lever structure.

[0012] As a further description of the above technical solution: A thermally conductive adhesive sheet is provided on the right side of the force-bearing bracket, and a temperature sensing sheet is bonded to the upper side of the thermally conductive adhesive sheet. The temperature sensing sheet and the valve cover body are bonded together by the thermally conductive adhesive sheet.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the valve cover assembly, allows for the fitting and tightening of the threaded connecting sleeve and the connecting ferrule when needed. This effectively improves the sealing performance of the valve cover assembly and reduces the corrosion of the contact surfaces of the connecting ferrule and the threaded connecting sleeve by the medium. Furthermore, the copper plating layer has excellent corrosion resistance and lubrication effects, allowing for easy unscrewing when needed. The inner and outer sets of sealing rings of the threaded connecting sleeve form a double sealing structure, effectively preventing the medium from flowing into the connecting ferrule and the threaded connecting sleeve, thereby improving the overall sealing effect. The metal gasket enhances the support strength of the sealing rings, preventing deformation or damage under high pressure.

[0014] 2. With this utility model, the valve cover assembly allows the operator to observe whether there is any leakage of medium inside the valve cover in real time through the observation window when the valve cover is in use, without having to open the valve cover. This allows for timely detection and handling of potential leakage problems. When it is necessary to unscrew or tighten the valve cover, if a large torque resistance is encountered, the operator can insert a force-generating steel bar into the through hole in the middle of the force-bearing bracket as a lever fulcrum. By extending the lever arm, the difficulty of applying force is reduced, thus making the rotation operation more labor-saving and efficient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model; Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model; Figure 3 This is a bottom view of the valve cover body of this utility model, showing its disassembled structure. Figure 4 This is a schematic diagram of the upper structure of the valve cover body of this utility model.

[0016] The following are the labeling elements in the diagram: 1. Valve body; 2. Valve core; 3. Valve cover assembly; 301. Connecting sleeve; 302. Threaded connecting sleeve; 303. Valve cover body; 304. Snap ring; 305. Metal gasket; 306. Sealing ring; 307. Force-bearing retaining edge; 308. Observation window; 309. Force-bearing bracket; 310. Stress-generating steel bar; 311. Thermal conductive film; 312. Temperature sensing element. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4As shown, this utility model provides a technical solution: a valve cover structure, including a valve body 1, a valve core 2 disposed in the middle of the upper side of the valve body 1, a valve cover assembly 3 installed on the upper side of the valve core 2, the valve cover assembly 3 including a connecting sleeve 301 welded to the outside of the valve core 2, a threaded connecting sleeve 302 installed on the inner side of the connecting sleeve 301, and a valve cover body 303 welded to the upper side of the threaded connecting sleeve 302.

[0019] Furthermore, the threaded connecting sleeve 302 and the connecting ferrule 301 are connected by threads. The connecting ferrule 301 has an inward concave structure, while the threaded connecting sleeve 302 has an outward convex structure. The connecting ferrule 301 and the threaded connecting sleeve 302 are interlocked. The surface of the threaded connecting sleeve 302 is plated with a copper film. When needed, the threaded connecting sleeve 302 and the connecting ferrule 301 are interlocked and tightened to fix them. This can effectively improve the sealing performance of the valve cover assembly 3 and reduce the corrosion of the contact surface between the connecting ferrule 301 and the threaded connecting sleeve 302 by the medium. Moreover, the copper plating layer has good corrosion resistance and lubrication effect, and it can be easily unscrewed when it needs to be opened later.

[0020] Furthermore, retaining rings 304 are provided on both the inner and outer sides of the threaded connecting sleeve 302. A metal gasket 305 is connected to the inner groove of the retaining ring 304. A sealing ring 306 is provided on the lower side of the metal gasket 305. The sealing ring 306, the metal gasket 305, and the retaining ring 304 form a sealing cavity. The sealing ring 306 is provided in two sets, inner and outer. When needed, the inner and outer sets of sealing rings 306 form a double sealing structure, which can effectively prevent the medium from flowing into the connecting sleeve 301 and the threaded connecting sleeve 302, thereby improving the overall sealing effect. The metal gasket 305 plays the role of enhancing the supporting strength of the sealing ring 306, preventing deformation or damage under high pressure.

[0021] Furthermore, a force-bearing retaining edge 307 is welded to the outer side of the valve cover body 303. The force-bearing retaining edge 307 has a hexagonal structure. When it is necessary to unscrew or tighten, the operator can use a wrench to clamp the force-bearing retaining edge 307 to perform rotation operations, increasing the force points, making operation easier and less prone to slippage.

[0022] Furthermore, an observation window 308 is welded to the upper middle of the valve cover 303. The observation window 308 is made of transparent high-temperature resistant glass and has a round hole structure. When needed, the operator can observe whether there is any medium overflow inside the valve cover 303 in real time through the observation window 308 without opening the valve cover 303, so as to detect and deal with potential leakage problems in time.

[0023] Furthermore, force-bearing brackets 309 are provided on both the front and rear sides of the observation window 308. A force-generating steel bar 310 runs through the middle of the force-bearing bracket 309. The force-bearing brackets 309 are arranged symmetrically in two sets. The force-generating steel bar 310 and the force-bearing brackets 309 form a force-saving lever structure. When it is necessary to unscrew or tighten, if a large torque resistance is encountered, the operator can insert a force-generating steel bar 310 into the through hole in the middle of the force-bearing bracket 309 as a lever fulcrum. By extending the lever arm, the difficulty of applying force is reduced, thereby completing the rotation operation more efficiently and with less effort.

[0024] Furthermore, a thermally conductive film 311 is provided on the right side of the force-bearing bracket 309. A temperature sensing element 312 is bonded to the upper side of the thermally conductive film 311. The temperature sensing element 312 and the valve cover 303 are bonded together by the thermally conductive film 311. When needed, the operator can monitor the surface temperature of the valve cover 303 in real time through the temperature sensing element 312 bonded to the thermally conductive film 311, thereby judging the temperature change of the internal medium and facilitating timely control measures to prevent the valve's sealing performance or the normal flow of the medium from being affected by excessively high or low temperatures.

[0025] Working principle: When needed, install the valve body 1 in the required position, then insert the metal gasket 305 into the retaining rings 304 on both the inner and outer sides of the threaded connecting sleeve 302 on the lower side of the valve cover 303, and then insert the sealing ring 306 into the retaining ring 304. Then, using an external wrench, the threaded connecting sleeve 302 and the connecting sleeve 301 outside the valve core 2 are engaged and tightened through the force-bearing retaining edge 307. After that, the operator can lift it up and observe whether there is leakage and the temperature change of the valve cover 303 through the observation window 308 and the heat-conducting rubber sheet 311 in conjunction with the temperature sensing sheet 312. When it is necessary to disassemble the valve cover 303 and disassembly is difficult, a force-bearing steel bar 310 can be inserted into the force-bearing bracket 309 to disassemble the valve cover 303 more easily through the lever principle. This completes the use process of one valve cover structure.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A valve cover structure, comprising a valve body (1), characterized in that: A valve core (2) is provided in the middle of the upper side of the valve body (1). A valve cover assembly (3) is installed on the upper side of the valve core (2). The valve cover assembly (3) includes a connecting sleeve (301) welded to the outside of the valve core (2). A threaded connecting sleeve (302) is installed on the inner side of the connecting sleeve (301). A valve cover body (303) is welded to the upper side of the threaded connecting sleeve (302).

2. The valve cover structure according to claim 1, characterized in that, The threaded connecting sleeve (302) and the connecting sleeve (301) are connected by threads. The connecting sleeve (301) has an inward concave structure, and the threaded connecting sleeve (302) has an outward convex structure. The connecting sleeve (301) and the threaded connecting sleeve (302) are interlocked. The surface of the threaded connecting sleeve (302) is plated with a copper film.

3. The valve cover structure according to claim 1, characterized in that, The threaded connecting sleeve (302) is provided with retaining rings (304) on both the inner and outer sides. The inner groove of the retaining ring (304) is connected to a metal gasket (305). A sealing ring (306) is provided on the lower side of the metal gasket (305). The sealing ring (306), the metal gasket (305) and the retaining ring (304) form a sealing cavity. The sealing ring (306) is provided in two sets, inner and outer.

4. The valve cover structure according to claim 1, characterized in that, The outer side of the valve cover (303) is welded with a force-bearing retaining edge (307), which is a hexagonal structure.

5. A valve cover structure according to claim 1, characterized in that, An observation window (308) is welded to the middle of the upper side of the valve cover (303). The observation window (308) is made of transparent high-temperature resistant glass and has a round hole structure.

6. A valve cover structure according to claim 5, characterized in that, The observation window (308) is provided with force-bearing brackets (309) on both the front and rear sides. A force-generating steel bar (310) runs through the middle of the force-bearing bracket (309). The force-bearing brackets (309) are arranged in two symmetrical sets in the front and rear. The force-generating steel bar (310) and the force-bearing brackets (309) form a force-saving lever structure.

7. A valve cover structure according to claim 6, characterized in that, A thermally conductive film (311) is provided on the right side of the force-bearing bracket (309). A temperature sensing sheet (312) is bonded to the upper side of the thermally conductive film (311). The temperature sensing sheet (312) and the valve cover (303) are bonded together by the thermally conductive film (311).

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