Fixed ball valve with noise reduction structure

Abstract

The utility model belongs to the technical field of fixed ball valves, and particularly relates to a fixed ball valve with a noise reduction structure, which comprises a ball valve body and two noise reduction sleeves, the two noise reduction sleeves are respectively positioned on two sides of the ball valve body, first noise reduction cotton is adhered to the inner walls of the two ball valve bodies, and a splicing mechanism is arranged on one noise reduction sleeve. By arranging the splicing mechanism, the two noise reduction sleeves can be quickly spliced together, the mounting and dismounting efficiency is improved, the remarkable noise reduction effect is achieved through multiple noise reduction measures such as attachment of the noise reduction sleeves and the outer wall of the ball valve body, mounting of the first sound insulation cotton and the second sound insulation cotton and the like, noise pollution can be effectively reduced, and the service life of the ball valve is prolonged. The ball valve has the advantages of high efficiency, stability, convenience in quick disassembly and maintenance and the like, can adjust the fitting degree of the sound insulation cotton II and the outer wall of the ball valve body, and has the advantages of easiness in adjustment and wide adaptability.

Description

Technical Field

[0001] The utility model relates to the technical field of fixed ball valves, in particular to a fixed ball valve with a noise reduction structure. Background Art

[0002] The TQ series O-type fixed ball valve has the characteristics of large flow capacity, compact structure, good sealing performance, long service life, etc. It is economical, practical and easy to maintain. It is widely used in power plants, chemical industry, chemical fiber, petroleum, fertilizer, papermaking, textile, oil refining and water treatment, which require strict shutoff. It can be used for water, steam, oil, liquefied gas, natural gas, coal gas, oxidizing media, urea, acid, alkali and other media. The TQ series O-type ball valve part is combined with the AT series gear rack cylinder actuator or the AW series scotch fork cylinder actuator and various forms of electric actuators to form a standard product;

[0003] At present, during the use of traditional fixed ball valves, when the medium flow rate is too high and enters the valve body, the impact in the valve body will also cause certain noise, which will cause noise pollution and affect the surrounding environment. The existing noise reduction method generally sets a sound insulation cover on the outside of the fixed ball valve. The structure of the existing sound insulation cover is relatively simple, and it is difficult to quickly install and disassemble the sound insulation cover, and it is difficult to ensure the noise reduction effect of the fixed ball valve;

[0004] In view of the above technical defects, a solution is now proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a fixed ball valve with a noise reduction structure to solve the problems that the structure of the existing sound insulation cover is relatively simple, it is difficult to quickly install and disassemble the sound insulation cover, and it is difficult to ensure the noise reduction effect of the fixed ball valve.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a fixed ball valve with a noise reduction structure, comprising a ball valve body and a noise reduction sleeve, wherein two noise reduction sleeves are provided, and the two noise reduction sleeves are respectively located on both sides of the ball valve body, and the inner walls of the two ball valve bodies are both bonded with silencer cotton, and a splicing mechanism is provided on one of the noise reduction sleeves;

[0007] The splicing mechanism includes a gear rotatably connected to one of the noise reduction sleeves, racks are meshed on both sides of the gear, a limit block for limiting the horizontal position of the rack is fixedly connected to the surface of the noise reduction sleeve, the end of the rack away from the gear is bent, the noise reduction sleeve is penetrated and fixedly connected with a plurality of sleeves 1 distributed at intervals, the end of the sleeve 1 located in the noise reduction sleeve is penetrated and limitedly slidably connected with sleeve 2, and sound insulation cotton 2 is arranged in the noise reduction sleeve to abut against sleeve 2.

[0008] Preferably, a worm wheel coaxially fixedly connected to the gear is provided in the noise reduction sleeve, the worm wheel is meshed with a worm, and the shaft end of the worm passes through the upper surface of the noise reduction sleeve and is fixedly connected to a knob.

[0009] Preferably, one of the noise reduction sleeves is fixedly connected to the surface with four guide posts arranged in a matrix, and the opposite side of the other noise reduction sleeve is provided with a plug interface adapted to the guide posts.

[0010] Preferably, the surface of the noise reduction sleeve is provided with an arc-shaped opening one that matches the two ends of the ball valve body, the upper surface of the noise reduction sleeve is provided with an arc-shaped opening two that matches the outer contour of the ball valve body bracket, and the lower surface of the noise reduction sleeve begins to have an installation groove that matches the bottom of the ball valve body.

[0011] Preferably, a sealing gasket is fixedly connected to one side of the inner wall of the noise reduction sleeve near one edge of the arc-shaped opening, and the sealing gasket is arranged in an arc shape.

[0012] Preferably, a sliding rod is fixedly connected inside the second sleeve, and the sliding rod passes through the first sleeve and the noise reduction sleeve and is slidably connected to the sliding rod. Baffles penetrated by the sliding rod are provided on both sides of the noise reduction sleeve, and a block is fixedly connected to the end of the sliding rod. The sliding rod is located on the outer contour of the first sleeve and the second sleeve and is provided with a spring.

[0013] Beneficial effects of the utility model:

[0014] (1) The utility model can quickly splice two noise reduction sleeves together by setting a splicing mechanism, thereby improving the efficiency of installation and disassembly. Through multiple noise reduction measures, such as the fitting of the noise reduction sleeve with the outer wall of the ball valve body, the installation of the first sound insulation cotton and the second sound insulation cotton, etc., a significant noise reduction effect is achieved, which can effectively reduce noise pollution and has the advantages of high efficiency, stability, and convenience for quick disassembly and maintenance;

[0015] (2) By using springs and other components, the degree of fit between the sound insulation cotton and the outer wall of the ball valve body can be adjusted, thereby optimizing the noise reduction effect. While providing the noise reduction effect, it has the advantages of easy adjustment and wide adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings;

[0017] Figure 1 The utility model has an overall structure of three-dimensional Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the formal structure of the noise reduction sleeve of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the noise reduction sleeve of the utility model Figure 1 ;

[0020] Figure 4 This is a schematic diagram of the internal structure of the noise reduction sleeve of the utility model Figure 2 ;

[0021] Figure 5 It is a schematic diagram of a cross-sectional structure of a sleeve of the utility model.

[0022] Legend: 1. Ball valve body; 2. Noise reduction sleeve; 3. Arc-shaped opening 1; 4. Gear; 5. Rack; 6. Limit block; 7. Knob; 8. Worm; 9. Stopper; 10. Baffle; 11. Sleeve 1; 12. Sound insulation cotton 2; 13. Sealing gasket; 14. Guide column; 15. Worm gear; 16. Arc-shaped opening 2; 17. Installation slot; 18. Sleeve 2; 19. Spring; 20. Sliding rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in 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] Embodiment 1:

[0025] This embodiment is used to solve the problem that the structure of the existing sound insulation cover is relatively simple, it is difficult to quickly install and disassemble the sound insulation cover, and it is difficult to ensure the noise reduction effect of the fixed ball valve.

[0026] See also Figure 1 - Figure 5 As shown, this embodiment is a fixed ball valve with a noise reduction structure, including a ball valve body 1, a ball valve body 1 and a noise reduction sleeve 2, two noise reduction sleeves 2 are provided, and the two noise reduction sleeves 2 are respectively located on both sides of the ball valve body 1, and the inner walls of the two ball valve bodies 1 are bonded with sound-absorbing cotton 1, and a splicing mechanism is provided on one of the noise reduction sleeves 2; the splicing mechanism includes a gear 4 rotatably connected to one of the noise reduction sleeves 2, and racks 5 are meshed on both sides of the gear 4, and a limit block 6 for limiting the horizontal direction of the rack 5 is fixedly connected to the surface of the noise reduction sleeve 2, and the end of the rack 5 away from the gear 4 is bent, and the noise reduction sleeve 2 is penetrated and fixedly connected with a plurality of sleeves 11 distributed at intervals, and the end of the sleeve 11 located in the noise reduction sleeve 2 is penetrated and limitedly slidably connected with a sleeve 2 18, and a sound insulation cotton 2 12 abutting against the sleeve 2 18 is provided in the noise reduction sleeve 2.

[0027] By setting a splicing mechanism, when the gear 4 rotates, the two horizontally arranged racks 5 can move toward each other or away from each other. When the two racks 5 move toward each other, the bent portion of the rack 5 pulls the two noise reduction sleeves 2, so that the two noise reduction sleeves 2 can be spliced ​​with each other. The two noise reduction sleeves 2 are close to each other and fit against the outer wall of the ball valve body 1, and noise reduction treatment is performed by arranging sound-absorbing cotton 1 on the inner wall of the noise reduction sleeve 2. At the same time, when the sleeve 2 18 in the noise reduction sleeve 2 pushes the sound-absorbing cotton 2 12 to fit against the outer wall of the ball valve body 1, the ball valve body 1 can be further noise-reduced, which has the advantages of quick splicing and quick disassembly.

[0028] A worm wheel 15 is provided in the noise reduction sleeve 2 and is coaxially fixedly connected to the gear 4. The worm wheel 15 is meshed with a worm 8. The axial end of the worm 8 passes through the upper surface of the noise reduction sleeve 2 and is fixedly connected to a knob 7. The worm wheel 15 and the worm 8 are self-locking. By turning the knob 7, the worm 8 can be rotated and the worm wheel 15 meshed with it can be rotated, and the gear 4 coaxially fixedly connected to the worm wheel 15 rotates, and the rack 5 pulls the two noise reduction sleeves 2 for splicing. The worm wheel 15 and the worm 8 have a self-locking property, so that the two noise reduction sleeves 2 can be stably spliced ​​and the two noise reduction sleeves 2 can be prevented from being easily separated.

[0029] Four guide posts 14 arranged in a matrix are fixedly connected to the surface of one of the noise reduction sleeves 2, and a plug interface adapted to the guide posts 14 is opened on the opposite side of the other noise reduction sleeve 2; by setting the guide posts 14 and inserting the guide posts 14 into the corresponding plug interfaces, when the racks 5 move toward each other, the two noise reduction sleeves 2 can be stably spliced.

[0030] An arc-shaped opening 13 is provided on the surface of the noise reduction sleeve 2 to match the two ends of the ball valve body 1, an arc-shaped opening 2 16 is provided on the upper surface of the noise reduction sleeve 2 to match the outer contour of the bracket of the ball valve body 1, and an installation groove 17 is provided on the lower surface of the noise reduction sleeve 2 to match the bottom of the ball valve body 1; by providing the arc-shaped opening 1 3, the arc-shaped opening 2 16 and the installation groove 17, the two noise reduction sleeves 2 can be fully fitted with the outer wall of the ball valve body 1, further enhancing the noise reduction effect of the two cooperation on the ball valve body 1.

[0031] A sealing gasket 13 is fixedly connected to one side of the inner wall of the noise reduction sleeve 2 near the edge of the arc-shaped opening 3, and the sealing gasket 13 is arranged in an arc shape; by arranging the sealing gasket 13, the two noise reduction sleeves 2 near the arc-shaped opening 3 can be fully fitted together to improve the noise reduction effect.

[0032] Embodiment 2:

[0033] This embodiment is used to solve the problem of further improving the noise reduction effect.

[0034] See also Figure 1 , Figure 5As shown, a fixed ball valve with a noise reduction structure in this embodiment includes a sliding rod 20 fixedly connected inside a sleeve 18, the sliding rod 20 penetrates the sleeve 11 and the noise reduction sleeve 2 and is slidably connected to the sliding rod 20, baffles 10 penetrated by the sliding rod 20 are arranged on both sides of the noise reduction sleeve 2, a stopper 9 is fixedly connected to the end of the sliding rod 20, and a spring 19 is sleeved on the outer contour of the sliding rod 20 located inside the sleeve 11 and the sleeve 2 18.

[0035] The bent portion of the rack 5 is against the baffle 10. Under the action of the rack 5, the baffle 10 can push the block 9, so that the block 9 pulls the sliding rod 20 and the sleeve 18 to overcome the elastic force of the spring 19. As the two racks 5 pull the noise reduction sleeves 2 closer to each other, the sleeve 18 can automatically push the sound insulation cotton 12 located in the noise reduction sleeve 2 to fit the outer wall of the ball valve body 1, thereby further improving the noise reduction effect.

[0036] Combining Embodiment 1 with Embodiment 2

[0037] By setting up a splicing mechanism, the two noise reduction sleeves 2 can be quickly spliced ​​together, which improves the efficiency of installation and disassembly. Through multiple noise reduction measures, such as the fitting of the noise reduction sleeve 2 with the outer wall of the ball valve body 1, the installation of the first and second sound insulation cottons 12, etc., a significant noise reduction effect is achieved, which can effectively reduce noise pollution, and has the advantages of high efficiency, stability, and convenience for quick disassembly and maintenance. The elastic elements such as springs 19 are used to adjust the fitting degree of the second sound insulation cotton 12 with the outer wall of the ball valve body 1, thereby optimizing the noise reduction effect. While providing the noise reduction effect, it has the advantages of easy adjustment and wide adaptability;

[0038] like Figure 1 - Figure 5 As shown, the working process and principle of the utility model are as follows:

[0039] Step 1: insert the sliding rod 20 into the plug-in interface corresponding to the noise reduction sleeve 2, and turn the knob 7 to rotate the worm 8 and the worm wheel 15 meshing therewith, and the gear 4 coaxially fixedly connected to the worm wheel 15 rotates. When the gear 4 rotates, the two horizontally arranged racks 5 can move toward or away from each other. When the two racks 5 move toward each other, the bent portion of the rack 5 pulls the two noise reduction sleeves 2, and the two noise reduction sleeves 2 can be pulled together.

[0040] Step two, the bent part of the rack 5 is pressed against the baffle 10. Under the action of the rack 5, the rack 5 and the baffle 10 are pressed against each other, and the baffle 10 pulls the block 9, so that the block 9 pulls the sliding rod 20 and the sleeve 2 18 to overcome the elastic force of the spring 19. As the two racks 5 pull the noise reduction sleeves 2 closer to each other, the block 9 pulls the baffle 10 to reset, which can enable the sleeve 2 18 to automatically push the sound insulation cotton 2 12 located in the noise reduction sleeve 2 to fit the outer wall of the ball valve body 1, thereby further improving the noise reduction effect.

[0041] The above contents are merely examples and explanations of the structure of the present invention. 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 structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0042] 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 present invention. 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.

[0043] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A fixed ball valve with a noise reduction structure, comprising a ball valve body (1) and a noise reduction sleeve (2), characterized in that: Two noise reduction sleeves (2) are provided, and the two noise reduction sleeves (2) are respectively located on both sides of the ball valve body (1), and the inner walls of the two ball valve bodies (1) are both bonded with silencer cotton, and a splicing mechanism is provided on one of the noise reduction sleeves (2); The splicing mechanism comprises a gear (4) rotatably connected to one of the noise reduction sleeves (2), racks (5) meshing on both sides of the gear (4), a limit block (6) for limiting the horizontal position of the rack (5) fixedly connected to the surface of the noise reduction sleeve (2), the end of the rack (5) away from the gear (4) is bent, the noise reduction sleeve (2) is penetrated by and fixedly connected with a plurality of sleeves (11) distributed at intervals, the end of the sleeve (11) located in the noise reduction sleeve (2) is penetrated by and limitedly slidably connected with sleeve (18), and sound insulation cotton (12) abutting against sleeve (18) is arranged in the noise reduction sleeve (2).

2. A fixed ball valve with a noise reduction structure according to claim 1, characterized in that: A worm wheel (15) coaxially fixedly connected to the gear (4) is arranged inside the noise reduction sleeve (2); the worm wheel (15) is meshed with a worm (8); the shaft end of the worm (8) passes through the upper surface of the noise reduction sleeve (2) and is fixedly connected to a knob (7).

3. The fixed ball valve with noise reduction structure according to claim 2, characterized in that: Four guide posts (14) arranged in a matrix are fixedly connected to the surface of one of the noise reduction sleeves (2), and a plug interface adapted to the guide posts (14) is provided on the opposite side of the other noise reduction sleeve (2).

4. The fixed ball valve with noise reduction structure according to claim 3, characterized in that: The surface of the noise reduction sleeve (2) is provided with an arc-shaped opening (3) adapted to the two ends of the ball valve body (1), the upper surface of the noise reduction sleeve (2) is provided with an arc-shaped opening (16) adapted to the outer contour of the bracket of the ball valve body (1), and the lower surface of the noise reduction sleeve (2) is provided with a mounting groove (17) adapted to the bottom of the ball valve body (1).

5. The fixed ball valve with noise reduction structure according to claim 4, characterized in that: A sealing gasket (13) is fixedly connected to one side of the inner wall of the noise reduction sleeve (2) close to the edge of the arc-shaped opening (3), and the sealing gasket (13) is arranged in an arc shape.

6. The fixed ball valve with noise reduction structure according to claim 1, characterized in that: A sliding rod (20) is fixedly connected inside the second sleeve (18), and the sliding rod (20) passes through the first sleeve (11) and the noise reduction sleeve (2) and is slidably connected to the sliding rod (20). Baffles (10) passed through by the sliding rod (20) are arranged on both sides of the noise reduction sleeve (2), and a stopper (9) is fixedly connected to the end of the sliding rod (20). A spring (19) is sleeved on the outer contour of the sliding rod (20) located inside the first sleeve (11) and the second sleeve (18).

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