阅读说明：本技术 一种在线维修球阀 (Online maintenance ball valve ) 是由 陆诗雨 李晓慧 郑志刚 于 2021-08-09 设计创作，主要内容包括：本发明涉及一种在线维修球阀,包括：阀体,具有内腔,以及与所述内腔连通的进口管和出口管；阀杆,旋转设置于所述阀体上；滑移座,滑动设置于所述内腔,通过滑移所述滑移座,能够使其在第一工作位置与第二工作位置切换,当所述滑移座处于第二工作位置时,所述滑移座能够封闭所述进口管与出口管；阀球,旋转设置于所述滑移座上,当所述滑移座处于第二工作位置时,所述阀球能够从阀体内取出。本发明的优点有：在球阀关闭状态下通过转动推杆将滑移座由第一工作位置移动至第二工作位置,使阀球运动至梯形段,进而能够对阀球进行更换,让阀球能够在不拆卸球阀的情况下进行维修,更换方便快捷。(The invention relates to an online maintenance ball valve, comprising: the valve body is provided with an inner cavity, and an inlet pipe and an outlet pipe which are communicated with the inner cavity; the valve rod is rotatably arranged on the valve body; the sliding seat is arranged in the inner cavity in a sliding mode, can be switched between a first working position and a second working position by sliding the sliding seat, and can seal the inlet pipe and the outlet pipe when the sliding seat is located at the second working position; and the valve ball is rotatably arranged on the sliding seat, and when the sliding seat is in the second working position, the valve ball can be taken out from the valve body. The invention has the advantages that: the sliding seat is moved to the second working position from the first working position by rotating the push rod under the closing state of the ball valve, so that the ball valve moves to the trapezoidal section, the ball valve can be replaced, the ball valve can be maintained without being detached, and the replacement is convenient and fast.)

1. An online service ball valve, characterized in that said online service ball valve comprises:

the valve body is provided with an inner cavity, and an inlet pipe and an outlet pipe which are communicated with the inner cavity;

the valve rod is rotatably arranged on the valve body;

the sliding seat is arranged in the inner cavity in a sliding mode, can be switched between a first working position and a second working position by sliding the sliding seat, and can seal the inlet pipe and the outlet pipe when the sliding seat is located at the second working position;

the valve ball is rotatably arranged on the sliding seat, when the sliding seat is located at a first working position, the valve ball can be connected with the valve rod, the valve rod can be rotated to control the on-off of the inlet pipe and the outlet pipe, and when the sliding seat is located at a second working position, the valve ball can be taken out from the valve body.

2. The on-line maintenance ball valve of claim 1, wherein the valve body is composed of a rectangular section and a trapezoidal section, the inlet pipe and the outlet pipe are both connected to the rectangular section, the trapezoidal section has an inverted trapezoidal cross section, and an upper end opening is arranged, when the sliding seat is in the first working position, the valve ball is located in the rectangular section, and when the sliding seat is in the second working position, the valve ball is located in the trapezoidal section, so that the valve ball can be taken out.

3. The on-line service ball valve as recited in claim 2, wherein the upper end cap of the trapezoidal section is provided with a sealing cap.

4. The on-line maintenance ball valve of claim 2, wherein the sliding seat is hinged with a first valve seat and a second valve seat, the first valve seat is matched with the inlet pipe when the sliding seat is in the first working position, the second valve seat is matched with the outlet pipe, and the first valve seat and the second valve seat can be jointed with the side wall of the valve body through rotation when the sliding seat is moved to the second working position.

5. The on-line service ball valve as claimed in claim 4, wherein the sliding seat is provided with a first connecting groove and a second connecting groove, the first valve seat is provided with a first connecting shaft, the first connecting shaft extends into the first connecting groove to be rotatably connected with the sliding seat, the second valve seat is provided with a second connecting shaft, and the second connecting shaft extends into the second connecting groove to be rotatably connected with the sliding seat.

6. The on-line maintenance ball valve as claimed in claim 5, wherein the sliding seat further comprises a first abutting assembly and a second abutting assembly, the first abutting assembly comprises a first elastic member and a first abutting block, the first abutting block is slidably disposed on the sliding seat, one end of the first elastic member abuts against the sliding seat, the other end of the first elastic member abuts against the first abutting block, so that the first abutting block abuts against the first connecting shaft, so that the first connecting shaft is retained in the first connecting groove, the second abutting assembly comprises a second elastic member and a second abutting block, the second abutting block is slidably disposed on the sliding seat, one end of the second elastic member abuts against the sliding seat, the other end of the second elastic member abuts against the second abutting block, so that the second abutting block abuts against the second connecting shaft, and the second connecting shaft is limited in the second connecting groove.

7. The on-line service ball valve of claim 6, wherein a first ramp surface is provided on a side of the first abutment block adjacent to the notch of the first connection groove, and a second ramp surface is provided on a side of the second abutment block adjacent to the notch of the second connection groove.

8. The on-line service ball valve of claim 4, wherein the trapezoidal section has a first transition slope and a second transition slope, the first transition slope and the second transition slope are both located at an intersection of the trapezoidal section and the rectangular section, such that when the sliding seat moves from the second working position to the first working position, the first transition slope enables the first valve seat to rotate to a vertical state, and the second transition slope enables the second valve seat to rotate to a vertical state.

9. The on-line maintenance ball valve as claimed in claim 1, wherein a transverse groove is formed at the top of the ball valve, a connecting protrusion is formed at the lower end of the valve rod, the connecting protrusion can extend into the transverse groove, the ball valve can be driven to rotate by rotating the valve rod, and when the ball valve is in a closed state, the connecting protrusion can move along the transverse groove by moving the sliding seat.

10. The on-line maintenance ball valve of claim 1, wherein a push rod is connected to the valve body in a threaded manner, one end of the push rod is rotatably connected to the sliding seat, the sliding seat can be driven to move from the first working position to the second working position by rotating the push rod in a forward direction, the sliding seat can be driven to move from the second working position to the first working position by rotating the push rod in a reverse direction, and a handle is disposed at one end of the push rod, which is far away from the sliding seat.

Technical Field

The invention relates to the field of ball valves, in particular to an online maintenance ball valve.

Background

The ball valve is used as a valve, is widely applied to the industrial fields of petroleum, chemical industry, power generation, paper making, atomic energy, aviation, rockets and the like and daily life of people due to the compactness of the structure and the rapidness and convenience in operation, generally comprises a valve body, a valve cover, a valve seat, a valve ball, a valve rod and an operating mechanism thereof, and can cause the following problems after the existing ball valve is used for a long time:

1. the traditional ball valve only has 1 ball in the valve body, the ball is the main component for controlling fluid, the ball is most seriously washed and corroded by the fluid, once the ball is washed and corroded, the ball valve loses the function of controlling interception;

2. because the sealing element on the valve seat is made of fluoroplastic or nylon material, the sealing element is easy to wear and leak when being matched with the valve ball;

3. when the existing ball valve is maintained, the ball valve needs to be detached from a pipeline and maintained, and the ball valve needs to be reinstalled after the maintenance is finished, so that the process is complicated and troublesome, and much labor is consumed; and the medium in the pipelines at the two ends can flow out to pollute the working environment;

the present invention is designed to solve the above problems.

Disclosure of Invention

Based on this, it is necessary to provide an online maintenance ball valve to solve the problem of the existing ball valve.

The invention discloses an online maintenance ball valve, which comprises: the valve body is provided with an inner cavity, and an inlet pipe and an outlet pipe which are communicated with the inner cavity; the valve rod is rotatably arranged on the valve body; the sliding seat is arranged in the inner cavity in a sliding mode, can be switched between a first working position and a second working position by sliding the sliding seat, and can seal the inlet pipe and the outlet pipe when the sliding seat is located at the second working position; the valve ball is rotatably arranged on the sliding seat, when the sliding seat is located at a first working position, the valve ball can be connected with the valve rod, the valve rod can be rotated to control the on-off of the inlet pipe and the outlet pipe, and when the sliding seat is located at a second working position, the valve ball can be taken out from the valve body.

In one embodiment, the valve body consists of a rectangular section and a trapezoidal section, the inlet pipe and the outlet pipe are both connected to the rectangular section, the cross section of the trapezoidal section is in an inverted trapezoid shape, an upper end opening of the trapezoidal section is arranged, when the sliding seat is located at the first working position, the valve ball is located in the rectangular section, and when the sliding seat is located at the second working position, the valve ball is located in the trapezoidal section, so that the valve ball can be taken out.

In one embodiment, the upper end cover of the trapezoid section is provided with a sealing cover.

In one embodiment, the sliding seat is hinged with a first valve seat and a second valve seat, when the sliding seat is in a first working position, the first valve seat is matched with the inlet pipe, the second valve seat is matched with the outlet pipe, and when the sliding seat moves to a second working position, the first valve seat and the second valve seat can be attached to the side wall of the valve body through rotation.

In one embodiment, the sliding seat is provided with a first connecting groove and a second connecting groove, the first valve seat is provided with a first connecting shaft, the first connecting shaft extends into the first connecting groove so as to be rotatably connected with the sliding seat, the second valve seat is provided with a second connecting shaft, and the second connecting shaft extends into the second connecting groove so as to be rotatably connected with the sliding seat.

In one embodiment, the sliding seat is further provided with a first abutting assembly and a second abutting assembly, the first abutting assembly comprises a first elastic piece and a first abutting block, the first abutting block is arranged on the sliding seat in a sliding manner, one end of the first elastic piece is abutted against the sliding seat, the other end of the first elastic piece is abutted against the first abutting block, so that the first abutting block is abutted against the first connecting shaft, so that the first connecting shaft is limited in the first connecting groove, the second abutting assembly comprises a second elastic piece and a second abutting block, the second abutting block is arranged on the sliding seat in a sliding manner, one end of the second elastic piece abuts against the sliding seat, the other end of the second elastic piece abuts against the second abutting block, therefore, the second abutting block abuts against the second connecting shaft, and the second connecting shaft is limited in the second connecting groove.

In one embodiment, a first slope surface is arranged on one side of the first abutting block close to the notch of the first connecting groove, and a second slope surface is arranged on one side of the second abutting block close to the notch of the second connecting groove.

In one embodiment, the trapezoidal section has a first transition slope and a second transition slope, and the first transition slope and the second transition slope are both located at an intersection of the trapezoidal section and the rectangular section, so that when the sliding seat moves from the second working position to the first working position, the first transition slope can enable the first valve seat to rotate to the vertical state, and the second transition slope can enable the second valve seat to rotate to the vertical state.

In one embodiment, a transverse groove is formed in the top of the valve ball, a connecting lug is arranged at the lower end of the valve rod and can extend into the transverse groove, the valve ball can be driven to rotate by rotating the valve rod, and when the valve ball is in a closed state, the connecting lug can move along the transverse groove by moving the sliding seat.

In one embodiment, a push rod is connected to the valve body in a threaded manner, one end of the push rod is rotatably connected with the sliding seat, the push rod can drive the sliding seat to move from a first working position to a second working position through forward rotation, the push rod can drive the sliding seat to move from the second working position to the first working position through reverse rotation, and a handle is arranged at one end, far away from the sliding seat, of the push rod.

The invention has the advantages that:

1. when the ball valve is in a closed state, the sliding seat is moved from the first working position to the second working position by rotating the push rod, so that the valve ball moves to the trapezoidal section, the valve ball can be replaced, the valve ball can be maintained without being detached, and the replacement is convenient and rapid;

2. the valve seat is hinged with the sliding seat through the abutting assembly and the connecting groove, and after the sliding seat is moved from the first working position to the second working position through the push rod, the valve seat can be quickly disassembled through pressing operation, and a new valve seat is quickly replaced, so that quick maintenance and online maintenance are completed;

3. after the sliding seat moves from the first working position to the second working position, the sliding seat can seal the inlet pipe and the outlet pipe, and therefore the valve ball can be replaced on line.

Drawings

FIG. 1 is a cross-sectional view of an on-line service ball valve according to the present invention, with the ball in a closed position;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2 in accordance with the present invention;

FIG. 4 is an enlarged view of a portion of the area I of FIG. 1 in accordance with the present invention;

FIG. 5 is a cross-sectional view taken along line C-C of FIG. 2 in accordance with the present invention;

FIG. 6 is a three-dimensional view of a first valve seat of the present invention.

In the figure, the valve body 1, the rectangular section 11, the inlet pipe 111, the outlet pipe 112, the trapezoidal section 12, the sealing cover 121, the first transition inclined plane 122, the second transition inclined plane 123, the inner cavity 13, the valve rod 2, the connecting convex block 21, the sliding seat 3, the first valve seat 31, the first connecting shaft 311, the second valve seat 32, the second connecting shaft 321, the first connecting groove 33, the second connecting groove 34, the first elastic member 351, the first abutting block 352, the first slope 353, the second elastic member 361, the second abutting block 362, the second slope 363, the valve ball 4, the transverse groove 41, the push rod 5 and the handle 51.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

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 invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 3, the present invention discloses an online service ball valve, which includes: a valve body 1 having an inner cavity 13, and an inlet pipe 111 and an outlet pipe 112 communicating with the inner cavity 13; the valve rod 2 is rotatably arranged at the upper end of the valve body 1; the sliding seat 3 is slidably arranged in the inner cavity 13, and can be switched between a first working position and a second working position by sliding the sliding seat 3, and when the sliding seat 3 is in the second working position, the sliding seat 3 can seal the inlet pipe 111 and the outlet pipe 112; the valve ball 4 is rotatably arranged on the sliding seat 3, when the sliding seat 3 is located at a first working position, the valve ball 4 can be connected with the valve rod 2, the valve rod 2 can control the on-off of the inlet pipe 111 and the outlet pipe 112 through rotation, and when the sliding seat 3 is located at a second working position, the valve ball 4 can be taken out of the valve body 1.

It will be understood that the sliding seat 3 is used to move the ball 4 and is able to close the inlet and outlet pipes 111, 112 when the ball 4 moves out of the working position.

Preferably, as shown in fig. 2 and 3, the valve body 1 is composed of a rectangular section 11 and a trapezoidal section 12, the inlet pipe 111 and the outlet pipe 112 are both connected to the rectangular section 11, as shown in fig. 3, the trapezoidal section 12 has an inverted trapezoidal cross section, and an upper end opening is disposed, when the sliding seat 3 is in the first working position, the valve ball 4 is located in the rectangular section 11, and when the sliding seat 3 is in the second working position, the valve ball 4 is located in the trapezoidal section 12, so that the valve ball 4 can be taken out.

Preferably, the upper end of the trapezoidal section 12 is covered with a sealing cover 121.

Preferably, the sliding seat 3 is hinged to a first valve seat 31 and a second valve seat 32, when the sliding seat is in the first working position, the first valve seat 31 is matched with the inlet pipe 111, the second valve seat 32 is matched with the outlet pipe 112, and when the sliding seat 3 moves to the second working position, the first valve seat 31 and the second valve seat 32 can be attached to the side wall of the valve body 1 by rotating.

It should be noted that, in the present embodiment, the first valve seat 31 and the second valve seat 32 have the same structure.

It can be understood that the first valve seat 31 and the second valve seat 32 are both provided with through holes, when the sliding seat is in the first working position, the through hole of the first valve seat 31 corresponds to the inlet pipe 111, and the through hole of the second valve seat 32 corresponds to the outlet pipe 112.

Preferably, as shown in fig. 4, a first connecting groove 33 and a second connecting groove 34 are provided on the sliding seat 3, the first valve seat 31 has a first connecting shaft 311, the first connecting shaft 311 extends into the first connecting groove 33 so as to be rotatably connected with the sliding seat 3, the second valve seat 32 has a second connecting shaft 321, and the second connecting shaft 321 extends into the second connecting groove 34 so as to be rotatably connected with the sliding seat 3.

Preferably, the sliding seat 3 is further provided with a first abutting assembly and a second abutting assembly, the first abutting assembly includes a first elastic member 351 and a first abutting block 352, the first abutting block 352 is slidably disposed on the sliding seat 3, one end of the first elastic member 351 abuts against the sliding seat 3, the other end of the first elastic member abuts against the first abutting block 352, so that the first abutting block 352 abuts against the first connecting shaft 311, and the first connecting shaft 311 is restrained in the first connecting groove 33, the second abutting assembly includes a second elastic member 361 and a second abutting block 362, the second abutting block 362 is slidably disposed on the sliding seat 3, one end of the second elastic member 361 abuts against the sliding seat 3, and the other end abuts against the second abutting block 362, so that the second abutting block 362 abuts against the second connecting shaft 321, thereby the second connecting shaft 321 is limited in the second connecting groove 34.

It will be appreciated that the arrangement is such that the first valve seat 31 is detachable from the second valve seat 32, in particular, pressing the first valve seat 31 downwards moves the first connecting shaft 311 along the first connecting groove 33 and presses the first abutment member so that the first connecting shaft 311 can disengage from the first connecting groove 33, and similarly, pressing the second valve seat 32 downwards moves the second connecting shaft 321 along the second connecting groove 34 and presses the second abutment member so that the second connecting shaft 321 can disengage from the second connecting groove 34.

Preferably, a first slope 353 is disposed on a side of the first abutting block 352 close to the notch of the first connecting slot 33, and a second slope 363 is disposed on a side of the second abutting block 362 close to the notch of the second connecting slot 34.

Preferably, the trapezoidal section 12 has a first transition inclined surface 122 and a second transition inclined surface 123, and the first transition inclined surface 122 and the second transition inclined surface 123 are both located at the intersection of the trapezoidal section 12 and the rectangular section 11, so that when the sliding seat 3 moves from the second working position to the first working position, the first transition inclined surface 122 can rotate the first valve seat 31 to the vertical state, and the second transition inclined surface 123 can rotate the second valve seat 32 to the vertical state.

Preferably, the top of the valve ball 4 is provided with a transverse groove 41, the lower end of the valve rod 2 is provided with a connecting lug 21, the connecting lug 21 can extend into the transverse groove 41, the valve rod 2 can drive the valve ball 4 to rotate through rotation, and when the valve ball 4 is in a closed state, the sliding seat 3 can move the connecting lug 21 along the transverse groove 41.

As shown in fig. 1 and 2, the connecting protrusion 21 extends into the transverse groove 41, when the valve ball 4 is in an open state, the transverse groove 41 is perpendicular to the moving direction of the sliding seat 3, so that the sliding seat 3 is limited and cannot move, and when the valve ball 4 rotates 90 degrees, and the transverse groove 41 is parallel to the moving direction of the sliding seat 3, the sliding seat 3 can drive the valve ball 4 to move.

Preferably, threaded connection has push rod 5 on the valve body 1, 5 one end of push rod with 3 swivelling joint of seat that slides, through forward rotation push rod 5 can drive seat 3 that slides removes to the second operating position by first operating position, through reverse rotation push rod 5 can drive seat 3 that slides removes to first operating position by the second operating position.

Preferably, a handle 51 is arranged at one end of the push rod 5 far away from the sliding seat 3.

The working mode of the invention is as follows: as shown in fig. 1, 2 and 5, the ball valve is in a closed state, and the valve rod 2 is rotated to drive the valve ball 4 to rotate, so that the on-off of the ball valve is controlled.

When valve ball 4 or valve seat need to be changed, as shown in fig. 2, it is rotatory to drive push rod 5 forward through forward direction twist grip 51, can drive seat 3 that slides and remove to the left side, thereby drive valve ball 4, first valve seat 31, second valve seat 32 removes to the left side in step, seat 3 that slides promptly removes to second operating position from first operating position, the valve moves seat 3 this moment and can seal import pipe 111 and outlet pipe 112, valve ball 4 is in trapezoidal section 12, first valve seat 31 takes place rotatoryly with second valve seat 32, the slope is laminated in valve body 1 lateral wall, through opening sealed lid 121, valve ball 4 can be relaxed to take out.

If the first valve seat 31 or the second valve seat 32 needs to be removed, referring to fig. 4, the first valve seat 31 or the second valve seat 32 can be removed only by pressing the first valve seat 31 or the second valve seat 32 downward and then moving out the first connecting groove 33 or the second connecting groove 34 in the horizontal direction, and when the first valve seat 31 or the second valve seat 32 needs to be reinstalled, the first connecting shaft 311 or the second connecting shaft 321 is moved inward from the notch of the first connecting groove 33 or the second connecting groove 34, so that the installation is completed.

It should be mentioned that, when the valve ball 4 needs to be installed, the moving direction of the transverse groove 41 of the valve ball 4 and the moving direction of the sliding seat 3 need to be consistent, so that the connecting protrusion 21 can be smoothly clamped into the transverse groove 41 when the sliding seat 3 moves from the second working position to the first working position.

When the sliding seat 3 moves from the second working position to the first working position, the first valve seat 31 moves along the first slope 353 and rotates to the vertical state, and the second valve seat 32 moves along the second slope 363 and rotates to the vertical state.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.