CN220792125U

CN220792125U - Torsion-adjustable ball valve

Info

Publication number: CN220792125U
Application number: CN202322250229.8U
Authority: CN
Inventors: 董卫
Original assignee: Suzhou Bilinte Fluid Control Co ltd
Current assignee: Suzhou Bilinte Fluid Control Co ltd
Priority date: 2023-08-22
Filing date: 2023-08-22
Publication date: 2024-04-16
Anticipated expiration: 2033-08-22

Abstract

The utility model is applicable to the technical field of valves, and provides a torsion-adjustable ball valve, which comprises: the valve body is internally provided with a valve core which is spherical, and the valve core is sealed with the inner wall of the valve body through a sealing piece; a valve cover fixedly arranged on the top of the valve body; the connecting block is arranged in the valve body and is positioned in a rectangular groove formed in the top of the valve core, the connecting block is rectangular, and the connecting block is matched with the rectangular groove; the valve rod is arranged at the top of the connecting block, the valve rod and the connecting block are integrally formed, and the valve rod penetrates through a rotating hole formed in the valve cover. The torsion adjustable ball valve that this scheme provided can be adjusted the required power size of twist grip to can adjust ball valve torsion size, avoid too big or undersize at ball valve in long-term use torsion, avoid the ball valve to open and close inflexibly, improve the control effect of ball valve.

Description

Torsion-adjustable ball valve

Technical Field

The utility model belongs to the technical field of valves, and particularly relates to a torsion-adjustable ball valve.

Background

The ball valve is a valve which uses a ball body with a circular channel as an opening and closing piece, and the ball body rotates by 90 degrees around the center of a valve rod under the drive of the valve rod so as to complete the opening and closing function. The torque of a ball valve is the opening torque, also called the operating torque, of the valve and is the most important parameter in selecting a valve actuator. The magnitude of valve torsion is an important index for measuring valve product quality, and when people evaluate valve quality, the valve is usually opened conveniently and flexibly to account for the valve. In some advanced industrial pipeline valve standards, taking the standard as one of the check indexes, according to international standard I SO 9249, the maximum torque of a one-hand operated valve should not exceed 36n·m, and the maximum torque of a two-hand operated valve should not exceed 50n·m, which are calculated through a great deal of ergonomic experiments and theories. At the same time, this criterion is also applicable to other manually operated devices, such as handles, grips, etc.

The torque of the manually operated ball valve is too large or too small to be good, and the torque is moderate. Too large torque force can cause the manual rotation of the handle to control the opening or closing of the ball valve to be laborious and even damage the ball valve parts; too small torque force can lead to inflexible opening and closing of the ball valve, and poor control effect, namely, the valve core is difficult to stop at an effective position, so that the ball valve cannot be completely closed or completely opened. In addition, once the ball valve in the prior art is produced, the torsion of the ball valve is not adjustable in the use process, and in the long-term use process, the torsion of the ball valve is too large or too small because of abrasion caused by the long-term opening and closing of the ball valve, so that the torsion of the ball valve cannot be adjusted according to the needs, and the actual needs are difficult to meet.

Disclosure of Invention

The utility model provides a torsion-adjustable ball valve, which aims to solve the technical problem that the torsion of the existing ball valve is not adjustable and is difficult to meet actual needs.

The utility model is realized in that a torsion adjustable ball valve comprises: the valve body is internally provided with a valve core which is spherical, and the valve core is sealed with the inner wall of the valve body through a sealing piece; a valve cover fixedly arranged on the top of the valve body; the connecting block is arranged in the valve body and is positioned in a rectangular groove formed in the top of the valve core, the connecting block is rectangular, and the connecting block is matched with the rectangular groove; the valve rod is arranged at the top of the connecting block, the valve rod and the connecting block are integrally formed, and the valve rod penetrates through a rotating hole formed in the valve cover; the handle is assembled at the top end of the valve rod and is connected with the valve rod through a fastening mechanism; install adjustment mechanism on the valve gap, adjustment mechanism is used for adjusting torsion size, adjustment mechanism includes: a conical cylinder fixedly sleeved on the valve rod; the cylindrical box is slidably arranged on the inner wall of the valve body, round holes are formed in the top and the bottom of the cylindrical box, and the diameter of the round hole in the bottom of the cylindrical box is larger than that of the round hole in the top; the cylindrical block is fixedly arranged on the side wall in the cylindrical box, a conical hole is formed in the cylindrical block, the cylindrical block is made of deformable rubber, and the inner wall of the conical hole of the cylindrical block is in contact with the outer wall of the conical cylinder; and the driving mechanism is arranged on the valve cover and used for driving the cylindrical box and the cylindrical block to be pressed down to increase the torsion.

Preferably, the fastening mechanism includes: the support block is arranged at the top end of the valve rod and integrally formed with the valve rod and is used for supporting the handle; the square block is arranged at the top of the supporting block, the square block and the supporting block are integrally formed, a square hole matched with the square block is formed in the handle, and the handle is sleeved on the square block through the square hole; the screw rod is arranged at the top of the square block, and the screw rod and the square block are integrally formed; and the fixing nut is sleeved on the screw rod in a threaded manner and is used for fixing the handle on the supporting block.

Preferably, a baffle is fixedly sleeved on the valve rod, and the top of the baffle is contacted with the valve cover.

Preferably, the driving mechanism includes: the valve rod penetrates through the sleeve, and external threads are formed on the outer wall of the sleeve; the connecting ring block and the adjusting nut are sleeved on the sleeve through threads, the connecting ring block and the adjusting nut are integrally formed, and an annular groove is formed in the bottom of the connecting ring block; the two connecting rods are assembled at the top of the cylindrical box and are symmetrically arranged, two protruding blocks are symmetrically arranged at the top of the cylindrical box, the two protruding blocks are integrally formed with the cylindrical box, and the two connecting rods are respectively in threaded connection with thread grooves formed in the two protruding blocks; and two connecting sliding blocks which slide in the annular grooves, wherein the two connecting sliding blocks are fixedly connected with the top ends of the two connecting rods respectively.

Preferably, the bottom of the connecting ring block is fixedly provided with an inner ring cover and an outer ring cover, and the two connecting rods are both in sliding connection with the outer wall of the inner ring cover and the inner wall of the outer ring cover.

Preferably, the two ends of the valve body are respectively provided with an integrally formed flange, and a plurality of mounting holes are annularly distributed on the flanges and are fixedly connected with the medium conveying pipeline through bolts.

Compared with the related art, the torsion adjustable ball valve provided by the utility model has the following beneficial effects:

this scheme is making the valve rod rotate through twist grip, and then makes the case rotate, when realizing that the ball valve is opened and close, the accessible sets up adjustment mechanism and adjusts valve rod pivoted resistance size to the realization is to the regulation of twist grip required power size, and then realizes the regulation to ball valve torsion size, avoids the ball valve to open and close too hard, and avoids the ball valve can not close or open completely and cause opening and closing inflexibly, thereby improves the control effect of ball valve.

Drawings

FIG. 1 is a schematic diagram of a front view of a torque adjustable ball valve according to the present utility model;

FIG. 2 is an enlarged schematic view of the portion A shown in FIG. 1;

FIG. 3 is a schematic elevational cross-sectional view of the present utility model;

FIG. 4 is an enlarged schematic view of the portion B shown in FIG. 3;

FIG. 5 is an enlarged schematic view of the portion C shown in FIG. 3;

FIG. 6 is a schematic three-dimensional structure of a cylindrical box according to the present utility model;

FIG. 7 is a schematic view of a three-dimensional structure of a cylindrical block according to the present utility model;

FIG. 8 is a schematic view of a three-dimensional structure of a connecting ring block and an adjusting nut according to the present utility model;

FIG. 9 is a schematic top view of the connecting ring block and adjusting nut of the present utility model;

FIG. 10 is a schematic view of the bottom assembly of the connecting ring block, connecting rod and connecting slider of the present utility model;

FIG. 11 is a schematic illustration of the three-dimensional disassembly of the valve stem and handle of the present utility model.

Reference numerals: 1. a valve body; 2. a valve core; 3. a seal; 4. a valve cover; 5. a valve stem; 6. a connecting block; 7. a handle; 8. a support block; 9. square blocks; 10. a screw rod; 11. a fixing nut; 12. a baffle; 13. a conical cylinder; 14. a cylindrical box; 15. a cylindrical block; 16. a bump; 17. a sleeve; 18. connecting the ring blocks; 19. an adjusting nut; 20. a connecting rod; 21. the connecting slide block; 22. an inner ring cover; 23. and an outer ring cover.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The embodiment of the utility model provides a torsion adjustable ball valve, as shown in figures 1-11, which comprises: the valve comprises a valve body 1, wherein a valve core 2 is arranged in the valve body 1, the valve core 2 is spherical, and the valve core 2 and the inner wall of the valve body 1 are sealed through a sealing piece 3; a valve cover 4 fixedly installed on the top of the valve body 1; the connecting block 6 is arranged in the valve body 1, the connecting block 6 is positioned in a rectangular groove formed in the top of the valve core 2, the connecting block 6 is rectangular, and the connecting block 6 is matched with the rectangular groove; the valve rod 5 is arranged at the top of the connecting block 6, the valve rod 5 and the connecting block 6 are integrally formed, and the valve rod 5 penetrates through a rotating hole formed in the valve cover 4; a handle 7 mounted on the top end of the valve rod 5, the handle 7 being connected to the valve rod 5 by a fastening mechanism; the valve cover 4 is provided with an adjusting mechanism which is used for adjusting the torsion.

It should be noted that the torque of the manually operated ball valve needs to be moderate, and too large torque can cause the manual rotation of the handle to control the opening or closing of the ball valve to be laborious, even damage the ball valve parts; too small torque force can lead to inflexible opening and closing of the ball valve, and poor control effect, namely, the valve core is difficult to stop at an effective position, so that the ball valve cannot be completely closed or completely opened. In the prior art, the torsion of the ball valve is not adjustable in the use process, and in the long-term use process, the torsion of the ball valve is too large or too small because of abrasion caused by long-term opening and closing of the ball valve, so that the torsion of the ball valve cannot be adjusted according to the needs, and the actual needs are difficult to meet.

In this scheme, make valve rod 5 rotate through rotating handle 7 to drive case 2 through connecting block 6 and rotate, realize opening and close to the ball valve, and in long-term use, rotating handle 7 is too difficult, when very hard, perhaps too light cause the ball valve open with close control effect when relatively poor, case 2 is difficult to stop in effective position promptly, when leading to the ball valve to close or open completely, then control adjustment mechanism through instrument such as spanner, can adjust valve rod 5 pivoted resistance, thereby adjust the size of the required power of rotating handle 7, make its torsion be unlikely to too big or undersize.

In a further preferred embodiment of the present utility model, the fastening mechanism comprises: the support block 8 is arranged at the top end of the valve rod 5 and integrally formed with the valve rod 5, and the support block 8 is used for supporting the handle 7; the square block 9 is arranged at the top of the supporting block 8, the square block 9 and the supporting block 8 are integrally formed, square holes matched with the square block 9 are formed in the handle 7, and the handle 7 is sleeved on the square block 9 through the square holes; the screw rod 10 is arranged at the top of the square block 9, and the screw rod 10 and the square block 9 are integrally formed; and the fixing nut 11 is sleeved on the screw rod 10 in a threaded manner, and the fixing nut 11 is used for fixing the handle 7 on the supporting block 8.

In this embodiment, handle 7 overlaps on square piece 9 to fasten handle 7 on supporting shoe 8 through fixation nut 11, thereby when rotating handle 7, handle 7 drives square piece 9 and rotates, and square piece 9 drives valve rod 5 through supporting shoe 8 and rotates, thereby realizes the rotation of case 2, and then realizes opening and close of ball valve.

In a further preferred embodiment of the present utility model, a blocking piece 12 is fixedly sleeved on the valve rod 5, and the top of the blocking piece 12 is in contact with the valve cover 4.

In this embodiment, the valve rod 5 is restricted by the blocking piece 12, so that the valve rod 5 is prevented from being pulled upwards to cause the connecting block 6 to be separated from the valve core 2.

In a further preferred embodiment of the present utility model, the adjusting mechanism comprises: a conical cylinder 13 fixedly sleeved on the valve rod 5; the cylindrical box 14 is slidably arranged on the inner wall of the valve body 1, round holes are formed in the top and the bottom of the cylindrical box 14, and the diameter of the round hole in the bottom of the cylindrical box 14 is larger than that of the round hole in the top; a cylindrical block 15 fixedly mounted on the side wall in the cylindrical box 14, wherein a conical hole is formed in the cylindrical block 15, the cylindrical block 15 is made of deformable rubber, and the inner wall of the conical hole of the cylindrical block 15 is in contact with the outer wall of the conical cylinder 13; and a driving mechanism which is arranged on the valve cover 4 and is used for driving the cylinder box 14 and the cylinder block 15 to press down so as to increase the torsion.

In this embodiment, the cylindrical box 14 is pressed down by the driving mechanism, the cylindrical box 14 drives the cylindrical block 15 to move downwards, the cylindrical block 15 increases the extrusion force to the conical cylinder 13, so that the valve rod 5 rotates by rotating the handle 7, the valve rod 5 drives the conical cylinder 13 to rotate, and the extrusion force between the cylindrical block 15 and the conical cylinder 13 increases, so that the rotating resistance of the conical cylinder 13 increases, and the force required by the rotating handle 7 is increased, namely the valve torsion is increased.

In a further preferred embodiment of the present utility model, the driving mechanism comprises: the sleeve 17 is arranged at the top of the valve cover 4, the valve rod 5 penetrates through the sleeve 17, and external threads are formed on the outer wall of the sleeve 17; the connecting ring block 18 and the adjusting nut 19 are sleeved on the sleeve 17 through threads, the connecting ring block 18 and the adjusting nut 19 are integrally formed, and an annular groove is formed in the bottom of the connecting ring block 18; the two connecting rods 20 are assembled at the top of the cylindrical box 14 and are symmetrically arranged, the top of the cylindrical box 14 is symmetrically provided with two protruding blocks 16, the two protruding blocks 16 are integrally formed with the cylindrical box 14, and the two connecting rods 20 are respectively in threaded connection with thread grooves formed on the two protruding blocks 16; and two connecting sliding blocks 21 which slide in the annular grooves, wherein the two connecting sliding blocks 21 are fixedly connected with the top ends of the two connecting rods 20 respectively.

In this embodiment, by screwing the adjusting nut 19 by using a tool such as a wrench, the adjusting nut 19 moves downward on the sleeve 17, the adjusting nut 19 drives the connecting ring block 18 to rotate and move downward, the connecting ring block 18 drives the connecting rod 20 to move downward through the connecting sliding block 21, so that the cylindrical box 14 is driven to move downward through the bump 16, and the cylindrical block 15 is driven to move downward, so that the torque force of the ball valve can be increased.

In a further preferred embodiment of the present utility model, an inner ring cover 22 and an outer ring cover 23 are fixedly installed at the bottom of the connecting ring block 18, and both the connecting rods 20 are slidably connected with the outer wall of the inner ring cover 22 and the inner wall of the outer ring cover 23.

In this embodiment, when the torque of the ball valve needs to be reduced, the adjusting nut 19 is reversely screwed, so that the adjusting nut 19 moves upwards on the sleeve 17, the adjusting nut 19 drives the connecting ring block 18 to rotate and move upwards, the connecting ring block 18 drives the connecting sliding block 21 to move upwards through the inner ring cover 22 and the outer ring cover 23, so that the cylindrical block 15 moves upwards, the extrusion force between the cylindrical block 15 and the conical cylinder 13 is reduced, the rotating resistance of the conical cylinder 13 is reduced, the force required by rotating the handle 7 is reduced, and the torque of the ball valve is reduced.

In a further preferred embodiment of the present utility model, both ends of the valve body 1 are provided with integrally formed flanges, and a plurality of mounting holes are annularly distributed on the flanges for fixedly connecting with the medium conveying pipeline through bolts.

In this embodiment, the flanges at both ends are fixedly connected to the two-stage delivery pipe of the medium by using bolts.

To sum up, this ball valve accessible adjustment mechanism is adjusted the required power size of twist grip 7 to can adjust ball valve torsion size, avoid too big or too little at ball valve in long-term use in-process torsion.

Compared with the prior art, this scheme is making valve rod 5 rotate through twist grip 7, and then makes case 2 rotate, when realizing that the ball valve is opened and close, the accessible sets up adjustment mechanism and adjusts valve rod 5 pivoted resistance size to realize the regulation to the required power size of twist grip 7, and then realize the regulation to ball valve torsion size, avoid the ball valve to open and close too hard, and avoid the ball valve can not close or open completely and cause opening and closing inflexibly, thereby improve the control effect of ball valve.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, such as the above-described division of units, merely a division of logic functions, and there may be additional manners of dividing in actual implementation, such as multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or communication connection shown or discussed as being between each other may be an indirect coupling or communication connection between devices or elements via some interfaces, which may be in the form of telecommunications or otherwise.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model. It will be apparent that the described embodiments are merely some, but not all, embodiments of the utility model. Based on these embodiments, all other embodiments that may be obtained by one of ordinary skill in the art without inventive effort are within the scope of the utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art may still combine, add or delete features of the embodiments of the present utility model or make other adjustments according to circumstances without any conflict, so as to obtain different technical solutions without substantially departing from the spirit of the present utility model, which also falls within the scope of the present utility model.

Claims

1. A torsion adjustable ball valve, comprising:

the valve body is internally provided with a valve core which is spherical, and the valve core is sealed with the inner wall of the valve body through a sealing piece;

a valve cover fixedly arranged on the top of the valve body;

the connecting block is arranged in the valve body and is positioned in a rectangular groove formed in the top of the valve core, the connecting block is rectangular, and the connecting block is matched with the rectangular groove;

the valve rod is arranged at the top of the connecting block, the valve rod and the connecting block are integrally formed, and the valve rod penetrates through a rotating hole formed in the valve cover;

the handle is assembled at the top end of the valve rod and is connected with the valve rod through a fastening mechanism;

install adjustment mechanism on the valve gap, adjustment mechanism is used for adjusting torsion size, adjustment mechanism includes: a conical cylinder fixedly sleeved on the valve rod; the cylindrical box is slidably arranged on the inner wall of the valve body, round holes are formed in the top and the bottom of the cylindrical box, and the diameter of the round hole in the bottom of the cylindrical box is larger than that of the round hole in the top; the cylindrical block is fixedly arranged on the side wall in the cylindrical box, a conical hole is formed in the cylindrical block, the cylindrical block is made of deformable rubber, and the inner wall of the conical hole of the cylindrical block is in contact with the outer wall of the conical cylinder; and the driving mechanism is arranged on the valve cover and used for driving the cylindrical box and the cylindrical block to be pressed down to increase the torsion.

2. The torsion adjustable ball valve of claim 1, wherein the securing mechanism comprises:

the support block is arranged at the top end of the valve rod and integrally formed with the valve rod and is used for supporting the handle;

the square block is arranged at the top of the supporting block, the square block and the supporting block are integrally formed, a square hole matched with the square block is formed in the handle, and the handle is sleeved on the square block through the square hole;

the screw rod is arranged at the top of the square block, and the screw rod and the square block are integrally formed; and the fixing nut is sleeved on the screw rod in a threaded manner and is used for fixing the handle on the supporting block.

3. The torsion adjustable ball valve of claim 1, wherein the valve stem is fixedly sleeved with a baffle, and the top of the baffle is in contact with the valve cover.

4. The torque-adjustable ball valve of claim 1, wherein said drive mechanism comprises:

the valve rod penetrates through the sleeve, and external threads are formed on the outer wall of the sleeve;

the connecting ring block and the adjusting nut are sleeved on the sleeve through threads, the connecting ring block and the adjusting nut are integrally formed, and an annular groove is formed in the bottom of the connecting ring block;

the two connecting rods are assembled at the top of the cylindrical box and are symmetrically arranged, two protruding blocks are symmetrically arranged at the top of the cylindrical box, the two protruding blocks are integrally formed with the cylindrical box, and the two connecting rods are respectively in threaded connection with thread grooves formed in the two protruding blocks; and

The two connecting sliding blocks are respectively and fixedly connected with the top ends of the two connecting rods.

5. The torsion adjustable ball valve according to claim 4, wherein an inner ring cover and an outer ring cover are fixedly installed at the bottom of the connecting ring block, and the two connecting rods are both in sliding connection with the outer wall of the inner ring cover and the inner wall of the outer ring cover.

6. The torsion adjustable ball valve of claim 1, wherein the two ends of the valve body are provided with integrally formed flanges, and a plurality of mounting holes are annularly distributed on the flanges and are fixedly connected with the medium conveying pipeline through bolts.