A large-diameter ball valve with an anti-breakage structure

Abstract

The present invention relates to the technical field of ball valves, and specifically to a large-diameter ball valve with an anti-breakage structure, including: a valve body, including a valve housing, the surface of the valve housing is fixedly connected with a support pipe through bolts, the surface of the support pipe is fixedly connected with a support frame, and the upper surface of the valve housing is fixedly connected with an operation block; a pressure relief mechanism, including a sealing ring, the sealing ring is abutted and connected to the inner side of the support pipe, and a connecting ring is fixedly connected to the surface of the sealing ring. In the present invention, under the action of the first clamping plate and the second clamping plate, through the abutting connection of the second clamping plate and the first clamping plate with different positions of the pressure relief spring, the change of the elasticity of the pressure relief spring is realized, and the change of the pressure relief pressure is achieved, ensuring the use effect under different pressures. Under the action of the support block and the screw sleeve, the position of the sealing ring is fixed. Through the connection of the airbag and the sealing ring, the adjustment of the overall sealing size of the sealing ring is realized, achieving the sealing effect of the connection and use.

Description

Technical Field

[0001] The present invention relates to the technical field of ball valves, and specifically relates to a large-diameter ball valve with an anti-rupture structure. Background Technique

[0002] A ball valve is a valve in which the closing member is driven by a valve stem and rotates around the axis of the ball valve. It can also be used for the regulation and control of fluids. A large-diameter ball valve refers to a ball valve with a relatively large effective size. Ball valves are mainly used in pipelines to cut off, distribute, and change the flow direction of the medium.

[0003] With the rapid development of science and technology and the continuous improvement of production processes and product structures, large-diameter ball valves have rapidly developed into a major type of valve. However, when installing and using existing large-diameter ball valves, their interiors do not have an automatic pressure relief mechanism. Excessive internal pressure can cause irreversible deformation and stretching of their component materials. Prolonged use can easily cause them to rupture, affecting their use effect. Moreover, the installation dimensions of the ball valve are fixed and cannot be adjusted, and during the connection process, the connection sealing effect will also be reduced. Therefore, there is an urgent need to design a large-diameter ball valve with an anti-rupture structure to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a large-diameter ball valve with an anti-rupture structure to solve the problems raised in the above background technique, namely that the interior of the ball valve does not have an automatic pressure relief mechanism, excessive internal pressure can cause irreversible deformation and stretching of its component materials, prolonged use can easily cause it to rupture, affecting its use effect, and the installation dimensions of the ball valve are fixed and cannot be adjusted, and during the connection process, the connection sealing effect will also be reduced.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A large-diameter ball valve with an anti-rupture structure, comprising:

[0006] A valve body, including a valve housing. The surface of the valve housing is fixedly connected to a support pipe through bolts. The surface of the support pipe is fixedly connected to a support frame. The upper surface of the valve housing is fixedly connected to an operation block;

[0007] The pressure relief mechanism includes a sealing ring, which is abutted and connected to the inner side of the support pipe. A connecting ring is fixedly connected to the surface of the sealing ring. An adjustment groove is formed in the inner side of the support pipe. A tension spring is fixedly connected to the inner side of the adjustment groove. One end of the tension spring away from the adjustment groove is fixedly connected to an adjustment plate. A support plate is fixedly connected to the surface of the adjustment plate. A sliding groove is formed in the surface of the support plate. A first clamping plate and a second clamping plate are slidably connected to the inner side of the sliding groove. A third clamping plate is slidably connected to the surface of the support plate. A pressure relief rod is slidably connected to the inner side of the valve housing. A connecting rod is fixedly connected to the surface of the pressure relief rod. A pressure relief spring is fixedly connected to the surface of the connecting rod. A limiting groove is formed in the inner side of the sliding groove. A first telescopic spring is fixedly connected to the surface of the first clamping plate. A second telescopic spring is fixedly connected to the surface of the second clamping plate.

[0008] Preferably, the surface of the sealing ring is inclined. The connecting ring is circularly connected to the surface of the sealing ring. Both ends of the tension spring are fixedly connected to the surfaces of the adjustment groove and the adjustment plate.

[0009] Preferably, the adjustment plate is plate-shaped and slidably connected to the adjustment groove. The support plate is plate-shaped and vertically connected to the surface of the adjustment plate. The first clamping plate is "L"-shaped and slidably connected to the sliding groove. The second clamping plate is slidably connected to the support plate through the sliding groove.

[0010] Preferably, the second clamping plate is "L"-shaped. The third clamping plate is "L"-shaped and slidably connected to the surface of the support plate. The third clamping plate is abutted and connected to the pressure relief spring.

[0011] Preferably, the pressure relief rod is cylindrical and slidably connected to the valve housing. The connecting rod is cylindrical and penetrates through the valve housing and is fixedly connected to the pressure relief rod. Both ends of the pressure relief spring are fixedly connected to the surfaces of the connecting rod and the support plate.

[0012] Preferably, the limiting groove is long groove-shaped, and two groups of limiting grooves are formed in the inner side of the sliding groove. Both ends of the first telescopic spring are fixedly connected to the inner side of the sliding groove and the surface of the first clamping plate.

[0013] Preferably, both ends of the second telescopic spring are fixedly connected to the surfaces of the second clamping plate and the first clamping plate. Sliders are provided on the surfaces of the second clamping plate and the first clamping plate, and the sliders are slidably connected to the limiting groove.

[0014] Preferably, an adjustment mechanism is provided on the surface of the connecting ring. The adjustment mechanism includes a fixing plate, which is fixedly connected to the surface of the connecting ring. A screw rod is movably connected to the surface of the fixing plate. A support block is fixedly connected to the outer surface of the support pipe. A screw hole penetrates through the surface of the support block, and the screw rod is connected to the support block through the screw hole. A screw sleeve is threadedly connected to the outer surface of the screw rod. An airbag is provided inside the sealing ring.

[0015] Preferably, the fixing plate is fixedly connected to the connecting ring in a plate shape, and two groups of fixing plates are connected to the outer surface of the connecting ring. Two groups of supporting blocks are correspondingly connected to the outer surface of the supporting pipe and the fixing plates.

[0016] Preferably, the screw sleeve is in abutting connection with the supporting block through a screw rod. Two groups of air bags are connected to the inner side of the sealing ring, and the two groups of air bags are fixedly connected through a connecting pipe.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. During the use of the large-diameter ball valve with an anti-rupture structure, through the sliding connection between the sealing ring and the supporting pipe, under the abutting connection between the sealing ring and the adjusting plate, the position change of the adjusting plate in the adjusting groove is realized. Under the connection between the adjusting plate and the supporting plate, the change of the acting position of the supporting plate in the supporting pipe is achieved. Under the connection between the third clamping plate and the supporting plate, and the abutting connection between the third clamping plate and the pressure relief spring, the position support of the pressure relief spring is realized. Under the connection between the connecting rod and the pressure relief rod, the telescopic sliding of the pressure relief rod in the valve housing is achieved, and its pressure relief treatment is realized. Under the action of the first clamping plate and the second clamping plate, through the abutting connection between the second clamping plate and the first clamping plate at different positions of the pressure relief spring, the change of the elastic force of the pressure relief spring is realized, and the change of the pressure relief pressure is achieved, ensuring the use effect under different pressures.

[0019] 2. While realizing internal pressure relief and pressure relief pressure adjustment of the large-diameter ball valve with an anti-rupture structure, through the connection between the fixing plate and the connecting ring, and the connection between the screw rod and the supporting block, the change of the acting position of the sealing ring in the supporting pipe is realized. Through the change of the position of the sealing ring in the supporting pipe, the adjustment of the pressure relief pressure of the pressure relief rod is realized, ensuring the connection use of the supporting pipe and pipelines of different sizes and the adjustment of the internal pressure action. Under the action of the supporting block and the screw sleeve, the position of the sealing ring is fixed. Under the connection between the air bag and the sealing ring, the adjustment of the overall sealing size of the sealing ring is realized, achieving the sealing effect of its connection use. Description of the Drawings

[0020] Figure 1 It is a front view three-dimensional schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a bottom view three-dimensional schematic diagram of the structure of the present invention;

[0022] Figure 3 It is a front view partial cross-sectional three-dimensional schematic diagram of the structure of the present invention;

[0023] Figure 4 For the present invention Figure 3 The enlarged structural schematic diagram at A in;

[0024] Figure 5 For the present invention Figure 1 Front view partial perspective sectional view of the structure of the sealing ring in the present invention;

[0025] Figure 6 For the present invention Figure 2 Partial sectional perspective view of the structure of the valve housing in the present invention;

[0026] Figure 7 For the present invention Figure 4 Partial top view perspective view of the structure of the support plate in the present invention.

[0027] In the figure: 1. Valve housing; 11. Support pipe; 12. Support frame; 13. Operating block; 2. Sealing ring; 21. Connecting ring; 22. Adjusting groove; 23. Tension spring; 24. Adjusting plate; 25. Support plate; 26. Slide groove; 27. First clamping plate; 28. Second clamping plate; 29. Third clamping plate; 210. Pressure relief rod; 211. Connecting rod; 212. Pressure relief spring; 213. Limiting groove; 214. First telescopic spring; 215. Second telescopic spring; 3. Fixed plate; 31. Screw; 32. Support block; 33. Screw sleeve; 34. Airbag. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1-7 , an embodiment provided by the present invention:

[0030] A large-diameter ball valve with an anti-rupture structure, comprising:

[0031] A valve body, including a valve housing 1. The surface of the valve housing 1 is fixedly connected with a support pipe 11 through bolts. The surface of the support pipe 11 is fixedly connected with a support frame 12. The upper surface of the valve housing 1 is fixedly connected with an operating block 13. Under the connection of the valve housing 1 and the support pipe 11, through the action of the support pipe 11, it is convenient to connect and use the pipeline on the valve housing 1. Under the connection of the support frame 12 and the support pipe 11, the overall support of the valve housing 1 is realized. Through the action of the operating block 13, the control of the channel in the valve housing 1 is achieved;

[0032] The pressure relief mechanism includes a sealing ring 2. The sealing ring 2 is abutted and connected to the inner side of the support pipe 11. A connecting ring 21 is fixedly connected to the surface of the sealing ring 2. An adjustment groove 22 is formed in the inner side of the support pipe 11. A tension spring 23 is fixedly connected to the inner side of the adjustment groove 22. One end of the tension spring 23 away from the adjustment groove 22 is fixedly connected to an adjustment plate 24. A support plate 25 is fixedly connected to the surface of the adjustment plate 24. A sliding groove 26 is formed in the surface of the support plate 25. A first clamping plate 27 and a second clamping plate 28 are slidably connected to the inner side of the sliding groove 26. A third clamping plate 29 is slidably connected to the surface of the support plate 25. A pressure relief rod 210 is slidably connected to the inner side of the valve housing 1. A connecting rod 211 is fixedly connected to the surface of the pressure relief rod 210. A pressure relief spring 212 is fixedly connected to the surface of the connecting rod 211. A limiting groove 213 is formed in the inner side of the sliding groove 26. A first telescopic spring 214 is fixedly connected to the surface of the first clamping plate 27. A second telescopic spring 215 is fixedly connected to the surface of the second clamping plate 28. Through the connection of the sealing ring 2 and the connecting ring 21, under the abutting connection of the sealing ring 2 and the adjustment plate 24, the change of the acting position of the support plate 25 in the support pipe 11 is realized, so as to achieve the change of the acting elastic force of the pressure relief spring 212 in the valve housing 1, and the change and adjustment of the internal pressure relief intensity.

[0033] Further, the surface of the sealing ring 2 is inclined. The connecting ring 21 is circularly connected to the surface of the sealing ring 2. Both ends of the tension spring 23 are fixedly connected to the surfaces of the adjustment groove 22 and the adjustment plate 24. Through the connection of the connecting ring 21 and the sealing ring 2, under the sliding connection of the sealing ring 2 and the support pipe 11 and the abutting connection of the sealing ring 2 and the adjustment plate 24, the change of the position of the adjustment plate 24 in the adjustment groove 22 under the action of the tension spring 23 is realized, so as to achieve the change of the acting position of the support plate 25 in the support pipe 11.

[0034] Further, the adjustment plate 24 is plate-shaped and slidably connected to the adjustment groove 22. The support plate 25 is plate-shaped and vertically connected to the surface of the adjustment plate 24. The first clamping plate 27 is "L"-shaped and slidably connected to the sliding groove 26. The second clamping plate 28 is slidably connected to the support plate 25 through the sliding groove 26. Through the connection of the support plate 25 and the sliding groove 26, under the action of the first clamping plate 27 and the second clamping plate 28, the adjustment and control of the elastic force of the pressure relief spring 212 in the valve housing 1 are achieved.

[0035] Further, the second clamping plate 28 is "L"-shaped. The third clamping plate 29 is "L"-shaped and slidably connected to the surface of the support plate 25. The third clamping plate 29 is abutted and connected to the pressure relief spring 212. Through the sliding connection of the second clamping plate 28 and the sliding groove 26 and the sliding connection of the first clamping plate 27 and the sliding groove 26, when the position of the support plate 25 is adjusted, the positions of the first clamping plate 27 and the second clamping plate 28 on the support plate 25 are changed. Under the action of the third clamping plate 29, the connection position support of the pressure relief spring 212 on the support plate 25 is realized.

[0036] Further, the pressure relief rod 210 is in a cylindrical shape and is slidably connected to the valve housing 1. The connecting rod 211 is in a cylindrical shape and penetrates through the valve housing 1 and is fixedly connected to the pressure relief rod 210. Both ends of the pressure relief spring 212 are fixedly connected to the surfaces of the connecting rod 211 and the support plate 25. Through the sliding connection between the pressure relief rod 210 and the valve housing 1, and with the connection of the connecting rod 211 and the pressure relief spring 212, the support and adjustment of the acting position of the pressure relief rod 210 inside the valve housing 1 are realized.

[0037] Further, the limiting groove 213 is in a long groove shape, and two sets of limiting grooves 213 are arranged inside the sliding groove 26. Both ends of the first telescopic spring 214 are fixedly connected to the inner side of the sliding groove 26 and the surface of the first clamping plate 27. Through the connection of the limiting groove 213 and the sliding groove 26, under the action of the limiting groove 213, the sliding angle of the first clamping plate 27 and the second clamping plate 28 inside the sliding groove 26 is limited.

[0038] Further, both ends of the second telescopic spring 215 are fixedly connected to the surfaces of the second clamping plate 28 and the first clamping plate 27. Sliding blocks are arranged on the surfaces of the second clamping plate 28 and the first clamping plate 27, and the sliding blocks are slidably connected to the limiting groove 213. Through the connection of the second telescopic spring 215 and the second clamping plate 28, and the connection of the first telescopic spring 214 and the first clamping plate 27, the positions of the first clamping plate 27 and the second clamping plate 28 on the support plate 25 are changed, so that the first clamping plate 27 and the second clamping plate 28 are in different position abutments against the pressure relief spring 212, realizing the adjustment of the elastic force of the pressure relief spring 212 and changing the pressure range of internal pressure relief.

[0039] Further, an adjusting mechanism is arranged on the surface of the connecting ring 21. The adjusting mechanism includes a fixing plate 3. The fixing plate 3 is fixedly connected to the surface of the connecting ring 21. A screw rod 31 is movably connected to the surface of the fixing plate 3. A support block 32 is fixedly connected to the outer surface of the support pipe 11. A screw hole penetrates through the surface of the support block 32, and the screw rod 31 is connected to the support block 32 through the screw hole. A nut sleeve 33 is threadedly connected to the outer surface of the screw rod 31. An air bag 34 is arranged inside the sealing ring 2. Through the connection of the fixing plate 3 and the connecting ring 21, under the rotational connection of the screw rod 31 and the fixing plate 3, and the connection of the nut sleeve 33 and the screw rod 31, the adjustment and control of the acting position of the sealing ring 2 inside the support pipe 11 are realized.

[0040] Further, the fixing plate 3 is in a plate shape and is fixedly connected to the connecting ring 21, and two sets of fixing plates 3 are connected to the outer surface of the connecting ring 21. Two sets of support blocks 32 are correspondingly connected to the fixing plates 3 on the outer surface of the support pipe 11. Through the connection of the fixing plate 3 and the screw rod 31, and with the connection of the screw rod 31 and the support block 32, by rotating the nut sleeve 33, the acting position of the screw rod 31 inside the support block 32 is changed, achieving the adjustment and control of the acting position of the sealing ring 2 inside the support pipe 11.

[0041] Further, the screw sleeve 33 is connected by abutting the screw rod 31 and the support block 32. Two sets of air bags 34 are connected to the inner side of the sealing ring 2, and the two sets of air bags 34 are fixedly connected by a connecting pipe. Through the connection between the air bag 34 and the sealing ring 2, when the air bag 34 is squeezed, the acting size of the sealing ring 2 is changed, so as to achieve the sealing connection effect of the sealing ring 2 on the connecting pipe in the support pipe 11.

[0042] Working principle: Under the connection of the sealing ring 2 and the connecting ring 21, through the rotational connection of the fixing plate 3 and the screw rod 31, and under the connection of the screw rod 31 and the support block 32, the operator rotates the screw sleeve 33 to change the position of the screw rod 31 in the support block 32, so as to adjust the acting position of the sealing ring 2 in the support pipe 11, and realize the sealing connection of the sealing ring 2 to the connecting pipe in the support pipe 11.

[0043] Under the abutting connection of the sealing ring 2 and the adjusting plate 24, the position of the sealing ring 2 in the support pipe 11 is changed, so that the adjusting plate 24 slides in the adjusting groove 22, realizing the change of the acting position of the support plate 25 in the support pipe 11. Through the abutting connection of the third clamping plate 29 and the pressure relief spring 212, the support of the acting position of the pressure relief rod 210 in the valve housing 1 is realized. Under the action of the first clamping plate 27 and the second clamping plate 28, when connecting a pipe with a smaller connection size, the conveying pressure is high, the acting position of the sealing ring 2 in the support pipe 11 is more, and the acting position of the support plate 25 in the support pipe 11 is deeper, so as to achieve the connection between the first clamping plate 27 and the pressure relief spring 212, making the elastic force of the pressure relief spring 212 in the valve housing 1 become larger, and the pressure relief pressure also increases accordingly. When connecting a pipe with a larger size, on the contrary, that is, the pressure relief adjustment for connecting pipes of different sizes during use is realized, improving its use effect and scope.

[0044] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A large-diameter ball valve with an anti-breakage structure, characterized in that, Including: A valve body, including a valve housing (1), a support pipe (11) is fixedly connected to the surface of the valve housing (1) by bolts, a support frame (12) is fixedly connected to the surface of the support pipe (11), and an operation block (13) is fixedly connected to the upper surface of the valve housing (1); A pressure relief mechanism, including a sealing ring (2), the sealing ring (2) is abutted and connected to the inner side of the support pipe (11), a connecting ring (21) is fixedly connected to the surface of the sealing ring (2), an adjustment groove (22) is opened in the inner side of the support pipe (11), a tension spring (23) is fixedly connected to the inner side of the adjustment groove (22), one end of the tension spring (23) away from the adjustment groove (22) is fixedly connected to an adjustment plate (24), a support plate (25) is fixedly connected to the surface of the adjustment plate (24), a sliding groove (26) is opened in the surface of the support plate (25), a first clamping plate (27) and a second clamping plate (28) are slidably connected to the inner side of the sliding groove (26), a third clamping plate (29) is slidably connected to the surface of the support plate (25), a pressure relief rod (210) is slidably connected to the inner side of the valve housing (1), a connecting rod (211) is fixedly connected to the surface of the pressure relief rod (210), a pressure relief spring (212) is fixedly connected to the surface of the connecting rod (211), a limiting groove (213) is opened in the inner side of the sliding groove (26), a first telescopic spring (214) is fixedly connected to the surface of the first clamping plate (27), a second telescopic spring (215) is fixedly connected to the surface of the second clamping plate (28), the adjustment plate (24) is in a plate shape and is slidably connected to the adjustment groove (22), the support plate (25) is in a plate shape and is vertically connected to the surface of the adjustment plate (24), the first clamping plate (27) is in an "L" shape and is slidably connected to the sliding groove (26), the second clamping plate (28) is slidably connected to the support plate (25) through the sliding groove (26), the second clamping plate (28) is in an "L" shape, the third clamping plate (29) is in an "L" shape and is slidably connected to the surface of the support plate (25), and the third clamping plate (29) is abutted and connected to the pressure relief spring (212).

2. A large-diameter ball valve with an anti-breakage structure according to claim 1, characterized in that: The surface of the sealing ring (2) is inclined, the connecting ring (21) is in a circular ring shape and is connected to the surface of the sealing ring (2), and both ends of the tension spring (23) are fixedly connected to the surfaces of the adjustment groove (22) and the adjustment plate (24).

3. A large-diameter ball valve with an anti-cracking structure according to claim 1, characterized in that: The pressure relief rod (210) is in a cylindrical shape and is slidably connected to the valve housing (1), the connecting rod (211) is in a cylindrical shape and penetrates through the valve housing (1) and is fixedly connected to the pressure relief rod (210), and both ends of the pressure relief spring (212) are fixedly connected to the surfaces of the connecting rod (211) and the support plate (25).

4. A large-diameter ball valve with an anti-cracking structure according to claim 1, characterized in that: The limiting groove (213) is in a long groove shape, and two groups of limiting grooves (213) are opened in the inner side of the sliding groove (26), and both ends of the first telescopic spring (214) are fixedly connected to the inner side of the sliding groove (26) and the surface of the first clamping plate (27).

5. A large-diameter ball valve with an anti-fracture structure according to claim 4, characterized in that: Both ends of the second telescopic spring (215) are fixedly connected to the surfaces of the second clamping plate (28) and the first clamping plate (27). Sliders are provided on the surfaces of the second clamping plate (28) and the first clamping plate (27), and the sliders are slidably connected to the limiting grooves (213).

6. A large-diameter ball valve with an anti-fracture structure according to claim 1, characterized in that: An adjusting mechanism is provided on the surface of the connecting ring (21). The adjusting mechanism includes a fixing plate (3). The fixing plate (3) is fixedly connected to the surface of the connecting ring (21). A screw rod (31) is movably connected to the surface of the fixing plate (3). A support block (32) is fixedly connected to the outer surface of the support tube (11). A screw hole penetrates through the surface of the support block (32), and the screw rod (31) is connected to the support block (32) through the screw hole. A screw sleeve (33) is threadedly connected to the outer surface of the screw rod (31). An airbag (34) is provided inside the sealing ring (2).

7. The large-diameter ball valve with an anti-cracking structure according to claim 6, characterized in that: The fixing plate (3) is plate-shaped and fixedly connected to the connecting ring (21), and two groups of fixing plates (3) are connected to the outer surface of the connecting ring (21). Two groups of support blocks (32) are correspondingly connected to the fixing plates (3) on the outer surface of the support tube (11).

8. The large-diameter ball valve with an anti-breakage structure according to claim 6, characterized in that: The screw sleeve (33) is in abutting connection with the support block (32) through the screw rod (31). Two groups of airbags (34) are connected inside the sealing ring (2), and the two groups of airbags (34) are fixedly connected through a connecting pipe.

Images