Quick closing structure of valve

Abstract

The invention provides a quick-closing structure of a valve, and relates to the technical field of valves, the quick-closing structure comprises a ball valve body, and anti-misoperation limiting columns are fixedly mounted at the top of the ball valve body in a cross-shaped arrangement; the anti-misoperation limiting column is of a cylindrical structure; a control switch main shaft is rotationally mounted in the middle of the top of the ball valve body; a control switch main ball is fixedly mounted at the bottom end of the control switch main shaft; the control switch main ball is of a spherical structure; the control switch main ball is further installed in the ball valve body in a sliding mode. When the valve is lifted up to release the misoperation structure, the misoperation structure moves upwards to drive the control switch auxiliary shaft and the control switch auxiliary ball to rotate under the cooperation of a plurality of structures, so that the control switch auxiliary ball achieves temporary closing of the ball valve body through rotation, and the problem that when the valve needs to be closed quickly, the misoperation structure lowers the closing efficiency of the valve, and the valve is not closed quickly is solved. And if a misoperation structure is not arranged, the misoperation risk of the valve is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, and in particular to a quick - closing structure of a valve. Background Art

[0002] A valve is a pipeline accessory used to open and close pipelines, control the flow direction, and adjust and control the parameters of the transported medium. The main components of a valve are the valve body and the switch structure. In the process of using the existing valve switch structure, in order to ensure that the valve switch does not accidentally twist during the process where no adjustment is required, an anti - misoperation structure is usually set to improve the stability of the valve switch. However, the anti - misoperation structure will lead to the complexity of the operation when using the valve switch. Therefore, when the valve needs to be quickly closed, the anti - misoperation structure will reduce the closing efficiency of the valve, while not setting the anti - misoperation structure will increase the risk of misoperation of the valve. For this reason, the present invention provides a quick - closing structure of a valve that can prevent the valve switch from being misoperated and does not affect the efficiency of the valve switch. Summary of the Invention

[0003] The embodiment of the present disclosure relates to a quick - closing structure of a valve. By manually pulling the control switch runner upward along the control switch main shaft, the control switch runner moves upward, causing the anti - misoperation limit hole and the anti - misoperation limit post to disengage. When the control switch runner moves upward, the control switch runner will drive the connecting fixed rod, the installation top plate, and the transmission guide slide rod upward. The transmission guide slide rod will drive the conversion transmission slide column upward. The conversion transmission slide column converts the upward movement force of the transmission guide slide rod into a rotational force by sliding within the spiral - shaped structure power - conversion screw groove, causing the control switch secondary shaft to be stressed and drive the control switch secondary ball to rotate. The control switch secondary ball rotates to close the main through - hole on the control switch main ball, temporarily stopping the flow of the fluid inside the ball valve body. After the anti - misoperation limit hole and the anti - misoperation limit post disengage, the control switch runner and the control switch main shaft can resume rotation. At this time, the control switch runner is rotated manually, causing the control switch runner to drive the control switch main shaft and the control switch main ball to rotate, and the control switch main ball rotates to block the inside of the ball valve body.

[0004] In the first aspect of the present disclosure, a quick - closing structure of a valve is provided, specifically including: a ball valve body, on the top of which anti - misoperation limit posts are fixedly installed in a cross - shaped arrangement; the anti - misoperation limit posts are of a cylindrical structure; at the central position on the top of the ball valve body, a control switch main shaft is rotatably installed; at the bottom end of the control switch main shaft, a control switch main ball is fixedly installed; the control switch main ball is of a spherical structure; the control switch main ball is also slidably installed inside the ball valve body; a main through - hole is provided on the control switch main ball; on the circumferential outer wall of the control switch main shaft, a control switch runner is fixedly installed; on the top of the control switch runner, two anti - misoperation limit holes are symmetrically provided; the diameter of the anti - misoperation limit holes matches the diameter of the anti - misoperation limit posts; the anti - misoperation limit posts are also inserted into the inside of the anti - misoperation limit holes; at the inner bottom end of the control switch main shaft, a control switch sub - shaft is rotatably installed; a power conversion screw groove is provided inside the control switch sub - shaft; the power conversion screw groove is of a plate - spiral structure.

[0005] In at least some embodiments, a control switch sub - ball is rotatably installed inside the control switch main ball; a sub - through - hole is provided on the control switch sub - ball; the control switch sub - ball is also fixedly connected to the control switch sub - shaft.

[0006] In at least some embodiments, a restoring torsion spring is jointly provided between the top of the control switch sub - shaft and the inner top end of the control switch main shaft; a transmission guiding slide rod is slidably inserted at the top of the control switch main shaft; the transmission guiding slide rod is of a cylindrical structure.

[0007] In at least some embodiments, the bottom end of the transmission guiding slide rod also passes through the inside of the restoring torsion spring and is slidably inserted at the top of the control switch sub - shaft; on the circumferential outer wall of the transmission guiding slide rod, a conversion transmission slide column is fixedly installed.

[0008] In at least some embodiments, the rear end of the conversion transmission slide column is of a hemispherical structure; the conversion transmission slide column is located inside the control switch sub - shaft; the hemispherical structure of the conversion transmission slide column is also slidably installed inside the power conversion screw groove.

[0009] In at least some embodiments, an installation top plate is fixedly installed at the top end of the transmission guiding slide rod; connecting fixing rods are fixedly installed at the left and right ends of the bottom of the installation top plate.

[0010] In at least some embodiments, the connecting fixing rods are of a cylindrical structure; the bottom ends of the connecting fixing rods are also fixedly connected to the control switch runner; one end of a restoring spring is embedded and installed at the bottom of the installation top plate.

[0011] In at least some embodiments, the other end of the restoring spring is embedded and installed at the top of the main shaft of the control switch; when the control switch runner moves upward, the anti-misoperation limit hole on the control switch runner will disengage from the anti-misoperation limit post.

[0012] In at least some embodiments, when the control switch runner moves upward, the control switch runner will drive the mounting top plate and the transmission guiding slide rod upward under the action of the connecting fixed rod; when the transmission guiding slide rod moves upward, it will also drive the conversion transmission slide column upward.

[0013] In at least some embodiments, when the conversion transmission slide column moves upward, the conversion transmission slide column will drive the control switch secondary shaft and the control switch secondary ball to rotate under the action of the spiral structure power conversion screw groove by virtue of its own sliding.

[0014] The present invention provides a quick-closing structure for a valve, which has the following beneficial effects: 1. In the present invention, a limit rod is provided. By sleeving the anti-misoperation limit hole on the limit rod, the control switch runner can be limited in angle by the limit rod, so that when the main shaft of the control switch needs to be used, it is necessary to first lift the control switch runner upward, and the limit rod can be disengaged from the anti-misoperation limit hole before the main shaft of the control switch can be rotated. In this way, the anti-misoperation effect of the present invention is improved, and the control switch runner of the valve can be prevented from being accidentally rotated when the valve state is not adjusted.

[0015] 2. When the control switch runner is lifted in the present invention to disengage the limit rod from the anti-misoperation limit hole, the control switch runner will drive the connecting fixed rod, the mounting top plate and the transmission guiding slide rod upward, so that the transmission guiding slide rod drives the conversion transmission slide column upward, and the conversion transmission slide column uses the upward movement to cooperate with the semi-spiral structure power conversion screw groove to rotate the control switch secondary shaft and the control switch secondary ball, so that the control switch secondary ball rotates to realize the temporary closing of the ball valve body, and the flow is stopped when the misoperation structure is operated, thereby improving the flow stopping speed of the present invention.

[0016] 3. In the present invention, a misoperation structure is provided. Through the misoperation structure, the control switch runner can be prevented from being accidentally rotated, and when the staff lifts and unlocks the misoperation structure, the upward movement of the misoperation structure can drive the control switch secondary shaft and the control switch secondary ball to rotate in cooperation with multiple structures, so that the control switch secondary ball rotates to realize the temporary closing of the ball valve body, avoiding the reduction of the closing speed of the ball valve body due to the operation of the misoperation structure and preventing a series of consequences caused by untimely closing of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0018] The accompanying drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0019] In the accompanying drawings: Figure 1 A schematic diagram showing the overall structure of the present application is shown; Figure 2 Shows the Figure 1 Schematic diagram of the enlarged structure of part A in the present application; Figure 3 A schematic diagram of the half-section structure of the ball valve body of the present application is shown; Figure 4 A schematic diagram of the half-section structure of the ball valve body and the main ball of the control switch of the present application is shown; Figure 5 Shows the Figure 4 Schematic diagram of the enlarged structure of part B in the present application; Figure 6 A schematic diagram of the half-section structure of the main shaft and the auxiliary shaft of the control switch of the present application is shown; Figure 7 A schematic diagram of the split state structure of the main shaft and the auxiliary shaft of the control switch of the present application is shown; Figure 8 A schematic diagram of the auxiliary shaft of the control switch and the transmission guiding slide bar of the present application is shown; List of reference numerals 1. Ball valve body; 2. Anti-misoperation limit post; 3. Main shaft of the control switch; 4. Main ball of the control switch; 5. Control switch runner; 6. Anti-misoperation limit hole; 7. Auxiliary shaft of the control switch; 8. Power conversion screw groove; 9. Auxiliary ball of the control switch; 10. Restoration torsion spring; 11. Transmission guiding slide bar; 12. Conversion transmission slide column; 13. Installation top plate; 14. Connecting fixing rod; 15. Restoration spring. Detailed implementation manners

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0021] Please refer to Figures 1 to 8 : Embodiment 1: The present invention proposes a quick - closing structure for a valve, comprising: a ball valve body 1, on the top of the ball valve body 1, anti - misoperation limit posts 2 are fixedly installed in a cross - shaped arrangement; the anti - misoperation limit posts 2 are of a cylindrical structure; at the central position on the top of the ball valve body 1, a control switch main shaft 3 is rotatably installed; at the bottom end of the control switch main shaft 3, a control switch main ball 4 is fixedly installed; the control switch main ball 4 is of a spherical structure; the control switch main ball 4 is also slidably installed inside the ball valve body 1; a main through - hole is provided on the control switch main ball 4; on the circumferential outer wall of the control switch main shaft 3, a control switch runner 5 is fixedly installed; on the top of the control switch runner 5, two anti - misoperation limit holes 6 are symmetrically provided; the diameter of the anti - misoperation limit holes 6 matches the diameter of the anti - misoperation limit posts 2; the anti - misoperation limit posts 2 are also inserted into the anti - misoperation limit holes 6; at the inner bottom end of the control switch main shaft 3, a control switch sub - shaft 7 is rotatably installed; a power conversion screw groove 8 is provided inside the control switch sub - shaft 7; the power conversion screw groove 8 is of a plate - spiral structure.

[0022] When it is necessary to close, manually pull the control switch runner 5 upward along the control switch main shaft 3, so that the control switch runner 5 moves upward to disengage the anti - misoperation limit holes 6 and the anti - misoperation limit posts 2. And when the control switch runner 5 moves upward, the control switch runner 5 will drive the connecting fixed rod 14, the mounting top plate 13 and the transmission guide slide rod 11 to move upward, so that the transmission guide slide rod 11 drives the conversion transmission slide column 12 to move upward. The conversion transmission slide column 12 converts the upward movement force of the transmission guide slide rod 11 into a rotational force by sliding in the spiral - shaped power conversion screw groove 8, so that the control switch sub - shaft 7 is forced to drive the control switch sub - ball 9 to rotate, and the control switch sub - ball 9 closes the main through - hole on the control switch main ball 4 by rotation, so that the control switch sub - ball 9 temporarily stops the flow of the fluid inside the ball valve body 1. Thus, this structure can synchronously stop the flow of the fluid inside the ball valve body 1 when releasing the misoperation structure of the control switch runner 5, and the opening and closing structure of the ball valve body 1 will not become difficult to operate due to the setting of the operation structure.

[0023] Embodiment 2. On the basis of Embodiment 1, a control switch secondary ball 9 is rotatably installed inside the control switch main ball 4; a secondary through hole is provided on the control switch secondary ball 9; the control switch secondary ball 9 is also fixedly connected to a control switch secondary shaft 7; a restoring torsion spring 10 is jointly arranged between the top of the control switch secondary shaft 7 and the inner top end of the control switch main shaft 3; a transmission guiding slide rod 11 is slidably inserted and installed at the top of the control switch main shaft 3; the transmission guiding slide rod 11 is of a cylindrical structure; the bottom end of the transmission guiding slide rod 11 also passes through the inside of the restoring torsion spring 10 and is slidably inserted and installed at the top of the control switch secondary shaft 7; a conversion transmission sliding column 12 is fixedly installed on the circumferential outer wall of the transmission guiding slide rod 11; the rear end of the conversion transmission sliding column 12 is of a hemispherical structure; the conversion transmission sliding column 12 is located inside the control switch secondary shaft 7; the hemispherical structure of the conversion transmission sliding column 12 is also slidably installed inside the power conversion spiral groove 8; the top end of the transmission guiding slide rod 11 is fixedly installed with a mounting top plate 13; the left and right ends of the bottom of the mounting top plate 13 are fixedly installed with connecting fixing rods 14; the connecting fixing rods 14 are of a cylindrical structure.

[0024] After the anti-misoperation limit hole 6 is disengaged from the anti-misoperation limit post 2, the control switch runner 5 and the control switch main shaft 3 can resume rotation. At this time, the control switch runner 5 is manually rotated immediately, so that the control switch runner 5 drives the control switch main shaft 3 and the control switch main ball 4 to rotate, and the control switch main ball 4 realizes the blockage inside the ball valve body 1 through rotation, thereby realizing the true closing of the ball valve body 1.

[0025] Embodiment 3. On the basis of Embodiment 2, the bottom end of the connecting fixing rod 14 is also fixedly connected to the control switch runner 5; one end of a restoring spring 15 is embedded and installed at the bottom of the mounting top plate 13; the other end of the restoring spring 15 is embedded and installed at the top of the control switch main shaft 3; when the control switch runner 5 moves upward, the anti-misoperation limit hole 6 on the control switch runner 5 will be disengaged from the anti-misoperation limit post 2; when the control switch runner 5 moves upward, the control switch runner 5 will drive the mounting top plate 13 and the transmission guiding slide rod 11 to move upward under the action of the connecting fixing rod 14; when the transmission guiding slide rod 11 moves upward, it will also drive the conversion transmission sliding column 12 to move upward; when the conversion transmission sliding column 12 moves upward, the conversion transmission sliding column 12 will drive the control switch secondary shaft 7 and the control switch secondary ball 9 to rotate by virtue of its own sliding under the action of the spiral structure power conversion spiral groove 8.

[0026] After the closing is completed, by releasing the upward pull on the control switch rotating wheel 5, the control switch rotating wheel 5 drives the connecting fixed rod 14, the mounting top plate 13, and the transmission guiding slide rod 11 to move downward. During the movement, the two anti-misoperation limit holes 6 on the control switch rotating wheel 5 will be sleeved on the two anti-misoperation limit posts 2, so that the angle of the control switch rotating wheel 5 is limited by the anti-misoperation limit posts 2, ensuring that the ball valve body 1 can be stably in the closed state after closing. Moreover, when the transmission guiding slide rod 11 moves downward, the transmission guiding slide rod 11 will also drive the conversion transmission slide column 12 to move downward, so that the conversion transmission slide column 12 cooperates with the power conversion screw groove 8 of the semi-helical structure by moving downward to drive the control switch secondary shaft 7 and the control switch secondary ball 9 to rotate and return to the original state, canceling the temporary flow stoppage of the ball valve body 1 by the control switch secondary ball 9.

[0027] Working principle of this embodiment: When it is necessary to close, manually pull the control switch rotating wheel 5 upward along the main shaft 3 of the control switch, so that the anti-misoperation limit hole 6 and the anti-misoperation limit post 2 are disengaged by the upward movement of the control switch rotating wheel 5. And when the control switch rotating wheel 5 moves upward, the control switch rotating wheel 5 will drive the connecting fixed rod 14, the mounting top plate 13 and the transmission guide slide rod 11 upward, so that the transmission guide slide rod 11 drives the conversion transmission slide column 12 upward. The conversion transmission slide column 12 converts the upward movement force of the transmission guide slide rod 11 into a rotational force by sliding within the spiral-shaped power conversion screw groove 8, so that the control switch secondary shaft 7 is forced to drive the control switch secondary ball 9 to rotate, and the control switch secondary ball 9 closes the main through hole on the control switch main ball 4 by rotation, so that the control switch secondary ball 9 temporarily stops the flow of the fluid inside the ball valve body 1, so that this structure can synchronously stop the flow of the fluid inside the ball valve body 1 when the misoperation structure of the control switch rotating wheel 5 is released, and will not make the opening and closing structure of the ball valve body 1 difficult to operate due to the setting of the operation structure. And after the anti-misoperation limit hole 6 is disengaged from the anti-misoperation limit post 2, the control switch rotating wheel 5 and the main shaft 3 of the control switch can resume rotation. At this time, immediately rotate the control switch rotating wheel 5 manually, so that the control switch rotating wheel 5 drives the main shaft 3 of the control switch and the control switch main ball 4 to rotate, and the control switch main ball 4 closes the inside of the ball valve body 1 by rotation, thus realizing the true closing of the ball valve body 1. After the closing is completed, by releasing the upward pull on the control switch rotating wheel 5, the control switch rotating wheel 5 drives the connecting fixed rod 14, the mounting top plate 13 and the transmission guide slide rod 11 to move downward. During the downward movement, the two anti-misoperation limit holes 6 on the control switch rotating wheel 5 will be sleeved on the two anti-misoperation limit posts 2 again, so that the angle of the control switch rotating wheel 5 is limited by the anti-misoperation limit post 2, ensuring that the ball valve body 1 can be stably in the closed state after closing. And when the transmission guide slide rod 11 moves downward, the transmission guide slide rod 11 will also drive the conversion transmission slide column 12 to move downward, so that the conversion transmission slide column 12 cooperates with the power conversion screw groove 8 of the semi-spiral structure by moving downward to drive the control switch secondary shaft 7 and the control switch secondary ball 9 to rotate and recover, canceling the temporary flow stop of the ball valve body 1 by the control switch secondary ball 9.

[0028] In this article, the following points need to be noted: 1. The attached drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0029] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0030] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A quick - closing structure for a valve, comprising: Ball valve body (1), on the top of the ball valve body (1), anti-misoperation limit posts (2) are fixedly installed in a cross-shaped arrangement; the anti-misoperation limit posts (2) are of a cylindrical structure; at the center position on the top of the ball valve body (1), a control switch main shaft (3) is rotatably installed; it is characterized in that, at the bottom end of the control switch main shaft (3), a control switch main ball (4) is fixedly installed; the control switch main ball (4) is of a spherical structure; the control switch main ball (4) is also slidably installed inside the ball valve body (1); a main through hole is provided on the control switch main ball (4); on the circumferential outer wall of the control switch main shaft (3), a control switch runner (5) is fixedly installed; on the top of the control switch runner (5), two anti-misoperation limit holes (6) are symmetrically provided; the diameter of the anti-misoperation limit hole (6) matches the diameter of the anti-misoperation limit post (2); the anti-misoperation limit post (2) is also inserted into the inside of the anti-misoperation limit hole (6); at the bottom end inside the control switch main shaft (3), a control switch sub-shaft (7) is rotatably installed; inside the control switch sub-shaft (7), a power conversion screw groove (8) is provided; the power conversion screw groove (8) is of a plate spiral structure.

2. The quick - closing structure of a valve according to claim 1, characterized in that, Inside the control switch main ball (4), a control switch sub-ball (9) is rotatably installed; a sub-through hole is provided on the control switch sub-ball (9); the control switch sub-ball (9) is also fixedly connected to the control switch sub-shaft (7).

3. The quick-closing structure of a valve according to claim 2, characterized in that, Between the top of the control switch sub-shaft (7) and the inner top end of the control switch main shaft (3), a restoring torsion spring (10) is jointly provided; on the top of the control switch main shaft (3), a transmission guiding slide rod (11) is slidably inserted; the transmission guiding slide rod (11) is of a cylindrical structure.

4. The quick-closing structure of a valve according to claim 3, characterized in that, The bottom end of the transmission guiding slide rod (11) also passes through the inside of the restoring torsion spring (10) and is slidably inserted into the top of the control switch sub-shaft (7); on the circumferential outer wall of the transmission guiding slide rod (11), a conversion transmission slide column (12) is fixedly installed.

5. The quick-closing structure of a valve according to claim 4, characterized in that, The rear end of the conversion transmission slide column (12) is of a hemispherical structure; the conversion transmission slide column (12) is located inside the control switch sub-shaft (7); the hemispherical structure of the conversion transmission slide column (12) is also slidably installed inside the power conversion screw groove (8).

6. The quick-closing structure of a valve according to claim 5, wherein, On the top end of the transmission guiding slide rod (11), an installation top plate (13) is fixedly installed; on the bottom left and right ends of the installation top plate (13), connecting fixing rods (14) are fixedly installed.

7. The quick-closing structure of a valve according to claim 6, characterized in that, The connecting fixing rod (14) is of a cylindrical structure; the bottom end of the connecting fixing rod (14) is also fixedly connected to the control switch runner (5); one end of a restoring spring (15) is embedded and installed at the bottom of the installation top plate (13).

8. The quick - closing structure of a valve according to claim 7, characterized in that, The other end of the restoring spring (15) is embedded and installed at the top of the control switch main shaft (3); when the control switch runner (5) moves upward, the anti-misoperation limit hole (6) on the control switch runner (5) will disengage from the anti-misoperation limit post (2).

9. The quick-closing structure of a valve according to claim 8, characterized in that, When the control switch rotating wheel (5) moves upward, the control switch rotating wheel (5) will drive the mounting top plate (13) and the transmission guide slide bar (11) to move upward under the action of the connecting fixed rod (14); when the transmission guide slide bar (11) moves upward, it will also drive the conversion transmission slide column (12) to move upward.

10. The quick - closing structure of a valve according to claim 9, characterized in that, When the conversion transmission slide column (12) moves upward, the conversion transmission slide column (12) will drive the control switch secondary shaft (7) and the control switch secondary ball (9) to rotate under the action of the spiral structure power conversion screw groove (8) by virtue of its own sliding.

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