Ball valve provided with locking structure and used for conveying hydrogen energy

Abstract

The utility model discloses a hydrogen energy conveying ball valve with a locking structure, which comprises a left valve body, a right valve body, an upper platform, a lower toothed plate, a valve core, a valve rod, a sliding sleeve, an upper toothed plate, a fixed handle, a movable handle, a shifting fork plate, a spring and a positioning bolt, the valve core is rotatably installed in the right valve body and penetrates through the upper platform through the valve rod to be connected with the sliding sleeve, the upper toothed plate is arranged at the bottom of the sliding sleeve and presses the lower toothed plate downwards through the spring, and the fixed handle is installed at the top of the valve rod. Rapid unlocking and automatic locking are achieved through the movable handle, operation convenience is improved, follow-up maintenance is facilitated through the split matching structure of the sliding sleeve and the shifting fork plate, accurate recognition of the state of the valve element is achieved through limiting matching of the rail groove and the positioning bolt, and therefore safety and reliability of the hydrogen conveying system are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of ball valve, concretely relates to a ball valve with locking structure for hydrogen energy delivery. BACKGROUND

[0002] As a clean and efficient energy form, hydrogen energy is widely used in transportation, energy storage and industrial manufacturing fields. In the process of hydrogen gas delivery, ball valves are often used for on-off adjustment to effectively control the fluid. The existing ball valves for hydrogen energy delivery usually realize opening and closing control through manual operation of the valve stem, but in actual application, the following problems exist:

[0003] Firstly, the conventional ball valve adopts a simple rotary valve stem structure and lacks an effective locking mechanism, which is prone to accidental opening or closing of the valve due to vibration or misoperation, thus posing certain safety hazards, especially in a high-pressure hydrogen gas delivery system, the risk is more prominent.

[0004] Secondly, the existing ball valves with locking structures usually need to use special tools or perform multiple operations to release the lock during actual operation, which not only increases the use difficulty and reduces the operation convenience, but also affects the quick opening and closing efficiency of the valve in an emergency.

[0005] Thirdly, the locking and unlocking mechanisms in the prior art are mostly designed in an integral type with the valve stem body, which needs to be disassembled as a whole when being repaired or replaced, resulting in high maintenance cost and complicated operation, and affecting the continuous operation of the equipment.

[0006] In addition, the existing ball valve lacks perfect limit function design during the rotation of the valve core, and the operator cannot accurately determine the opening and closing state of the valve core during the rotation, which increases the probability of misoperation and reduces the reliability of system operation. INVENTION CONTENTS

[0007] In view of the problems in the prior art, the purpose of the utility model is to provide a ball valve with locking structure for hydrogen energy delivery, which can realize reliable locking and quick unlocking, is convenient for subsequent maintenance, has a rotation limiting function, and is used for hydrogen energy delivery to solve the above problems.

[0008] To achieve the above purpose, the utility model provides the following technical scheme: a ball valve with locking structure for hydrogen energy delivery, comprising a left valve body and a right valve body, the left valve body and the right valve body are sealed and connected, one end of the left valve body and the right valve body away from each other is provided with a flange, the top of the right valve body is fixed with an upper platform, the valve core is rotatably installed in the right valve body, the valve stem is arranged on the top of the valve core, and the valve stem penetrates through the upper platform vertically;

[0009] The upper platform top is fixed with a lower tooth plate, the valve rod penetrates the lower tooth plate, a sliding sleeve is slidably installed on the surface of the valve rod, the sliding sleeve bottom is provided with an upper tooth plate with tooth surface downward, and the upper tooth plate corresponds to the lower tooth plate.

[0010] The valve rod top is installed with a fixed handle through bolts.

[0011] Further, the valve rod surface is symmetrically provided with convex strips, the sliding sleeve interior is symmetrically provided with grooves, and the convex strips are arranged in the grooves.

[0012] Further, the sliding sleeve top is provided with a limiting plate, the valve rod surface is sleeved with a spring, and the spring is arranged between the fixed handle and the limiting plate.

[0013] Further, the fixed handle lower side is parallelly provided with a movable handle, one end of the movable handle is provided with a pull fork plate, the pull fork plate surface is provided with a U-shaped groove, the pull fork plate is arranged between the limiting plate and the upper tooth plate, and the sliding sleeve penetrates the U-shaped groove on the pull fork plate surface.

[0014] Further, the movable handle upper surface is vertically provided with two fixed pegs, and the two fixed pegs penetrate the fixed handle.

[0015] Further, the upper platform surface is provided with a track groove, the movable handle bottom is vertically fixed with a positioning peg, and the positioning peg end is arranged on the track groove inner side.

[0016] Further, the track groove interior two ends correspond to the complete opening and complete closing of the valve core respectively.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] The utility model discloses a right valve body top is provided with an upper platform, and the upper platform is fixed with a lower tooth plate, and the valve rod outside is sleeved with a sliding sleeve, the sliding sleeve bottom is provided with an upper tooth plate and is connected with the fixed handle through a spring, the meshing structure of the upper tooth plate and the lower tooth plate realizes reliable locking of the valve rod, effectively avoids the problem that the traditional hydrogen energy delivery ball valve is accidentally opened or closed due to vibration or misoperation in the use process, thereby improve the overall safety of the hydrogen delivery system.

[0019] The utility model discloses a right valve body top is provided with an upper platform, and the upper platform is fixed with a lower tooth plate, and the valve rod outside is sleeved with a sliding sleeve, the sliding sleeve bottom is provided with an upper tooth plate and is connected with the fixed handle through a spring, the meshing structure of the upper tooth plate and the lower tooth plate realizes reliable locking of the valve rod, effectively avoids the problem that the traditional hydrogen energy delivery ball valve is accidentally opened or closed due to vibration or misoperation in the use process, thereby improve the overall safety of the hydrogen delivery system.

[0020] The utility model discloses a cooperation structure of convex strip and recess is set up, make the sliding sleeve always keep synchronous rotation with valve stem in the process of releasing locking and relocking, avoided the problem that locking failure caused by the relative sliding between sliding sleeve and valve stem, and the sliding sleeve and the yoke board are split type cooperation, do not need to dismantle the valve as a whole when the subsequent maintenance or replacement sliding sleeve or yoke board, solved the maintenance difficulty and high cost problem caused by the integral design of the prior art locking structure, improved the maintainability and service life of hydrogen energy delivery equipment.

[0021] The utility model discloses a track groove is set up on the upper platform surface, and the fixed positioning bolt is set in the movable handle bottom, and the positioning bolt end is placed in the track groove inside, and the track groove both ends are corresponding the complete opening and complete closing state of valve core respectively, in the valve stem rotation process, positioning bolt moves along the track groove, and the state of valve core can be judged accurately through the observation of the position of positioning bolt, and the problem that operator is difficult to visually judge the opening and closing degree of valve in the prior art ball valve is effectively solved, thereby the operation controllability in the conveying process and the reliability of system operation are improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the installation three-dimensional structure schematic diagram of the utility model;

[0023] Figure 2 It is the section structure schematic diagram of the utility model;

[0024] Figure 3 It is the valve body and sliding sleeve structure schematic diagram of the utility model;

[0025] Figure 4 It is the explosion structure schematic diagram of the utility model; Figure 3

[0026] Figure 5 It is the sliding sleeve installation structure schematic diagram of the utility model;

[0027] Figure 6 It is the yoke board and sliding sleeve installation structure schematic diagram of the utility model.

[0028] In the drawings, the component list represented by each sign is as follows: 1, left valve body;2, right valve body;21, upper platform;22, lower tooth plate;23, track groove;3, valve core;31, valve stem;32, convex strip;4, sliding sleeve;41, limit plate;42, upper tooth plate;5, fixed handle;6, spring;7, yoke plate;71, movable handle;72, fixed bolt;73, positioning bolt. DETAILED DESCRIPTION

[0029] ​In order to make the purpose and advantages of the utility model more clearly, the following will make specific description of the utility model with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the protection scope of the utility model.

[0030] Reference Figures 1-6 As shown in figure, a kind of ball valve with locking structure for hydrogen energy delivery, including left valve body 1 and right valve body 2, left valve body 1 and right valve body 2 seal butt joint, left valve body 1 and right valve body 2 are provided with flange at one end of mutual departure, flange is used to be connected with delivery pipeline system to realize the sealed delivery of hydrogen, upper platform 21 is fixed on the top of right valve body 2, upper platform 21 is as the operating support platform of valve and plays the role of fixed sliding sleeve 4 and positioning bolt 73, valve core 3 is rotatably installed in right valve body 2, valve core 3 is hollow spherical structure for controlling the on-off of hydrogen, valve stem 31 is provided on the top of valve core 3, valve stem 31 is connected with valve core 3 to realize the synchronous rotation control of valve core 3, valve stem 31 vertically penetrates upper platform 21 and is ensured airtightness by axial sealing structure between valve stem 31 and upper platform 21.

[0031] Upper platform 21 top is fixed with lower toothed plate 22, lower toothed plate 22 is circular gear ring structure to facilitate reliable meshing locking with upper toothed plate 42, valve stem 31 penetrates lower toothed plate 22 and can rotate after upper toothed plate 42 and lower toothed plate 22 meshing is removed, sliding sleeve 4 is slidably installed on the surface of valve stem 31, sliding sleeve 4 is cylindrical sleeve component, for moving along the axial direction of valve stem 31 and driving upper toothed plate 42 to mesh or disengage, sliding sleeve 4 bottom is provided with upper toothed plate 42 with tooth surface downward, the tooth shape of upper toothed plate 42 is matched with lower toothed plate 22, the locking of valve stem 31 is realized by tooth engagement, and upper toothed plate 42 can be stably pressed on the surface of lower toothed plate 22 under the action of spring 6.

[0032] Valve stem 31 top is provided with fixed handle 5 by bolt, fixed handle 5 is disc-shaped, which is convenient for operator to hold and rotate, the existence of fixed handle 5 makes that operator can directly control the rotation of valve stem 31 to realize the opening or closing of valve core 3, when sliding sleeve 4 is not removed in the locked state, fixed handle 5 is locked and cannot rotate, to ensure the stability and reliability of valve during delivery.

[0033] Reference Figures 4-6 As shown in figure, the surface of valve stem 31 is provided with convex strip 32 symmetrically, convex strip 32 is longitudinal strip-shaped protrusion and extends along the axial direction of valve stem 31, recess 43 is symmetrically provided in the inside of sliding sleeve 4, recess 43 corresponds to the position of convex strip 32, convex strip 32 is placed in recess 43 to realize the synchronous rotation of sliding sleeve 4 and valve stem 31, to prevent sliding sleeve 4 from rotating independently relative to valve stem 31 during operation, so as to ensure that the upper toothed plate 42 of sliding sleeve 4 always maintains the rotation consistency with valve stem 31, and the stability and reliability of locking structure are improved.

[0034] Referring to Figures 2-4 As shown, the top of the sliding sleeve 4 is provided with a limiting plate 41, which is an annular flat plate structure and is fixedly connected with the top of the sliding sleeve 4. The limiting plate 41 plays a role of receiving the fork plate 7 during operation. The surface of the valve stem 31 is sleeved with a spring 6, which is a spiral spring structure. The spring 6 is arranged between the fixed handle 5 and the limiting plate 41. The spring 6 always exerts a downward pressure on the limiting plate 41, so that the sliding sleeve 4 remains in the meshing and locking state of the upper tooth plate 42 and the lower tooth plate 22 without external force, thereby ensuring that the valve stem 31 will not malfunction due to vibration during hydrogen gas transportation.

[0035] Referring to Figure 4 And Figure 6 As shown, a movable handle 71 is arranged in parallel below the fixed handle 5. The movable handle 71 is arranged in parallel with the fixed handle 5, which facilitates the operator to hold the fixed handle 5 and perform lifting operation at the same time to release the locking. One end of the movable handle 71 is provided with a fork plate 7, which is a plate structure with a U-shaped groove. The opening of the U-shaped groove faces the direction of the sliding sleeve 4. The surface of the fork plate 7 is provided with a U-shaped groove, which is used to sleeve the sliding sleeve 4. The fork plate 7 is arranged between the limiting plate 41 and the upper tooth plate 42. The fork plate 7 drives the sliding sleeve 4 to move axially along the valve stem 31 through the lifting action. The fork plate 7 and the sliding sleeve 4 are designed in a split type, which is beneficial to separately replace the sliding sleeve 4 or the fork plate 7 during subsequent maintenance, thereby improving the maintenance convenience and service life of the ball valve as a whole.

[0036] Referring to Figure 4 And Figure 6 As shown, two fixed pins 72 are vertically arranged on the upper surface of the movable handle 71. The fixed pins 72 are short rod structures. Both of the fixed pins 72 penetrate through the fixed handle 5 and form a sliding fit with the fixed handle 5. The existence of the fixed pins 72 limits the movement direction of the movable handle 71, so that the movable handle 71 can only move in the vertical direction. This prevents the movable handle 71 from rotating or deviating during use, thereby ensuring the stability and accuracy of the operation process.

[0037] Referring to Figures 3-6 As shown, the surface of the upper platform 21 is provided with a track groove 23, which extends along the radial direction of the upper platform 21 and has an arc-shaped groove structure, and is used to guide the movement path of the positioning pin 73. The bottom of the movable handle 71 is vertically fixed with a positioning pin 73, which is a short cylindrical structure. The end of the positioning pin 73 is arranged inside the track groove 23. When the positioning pin 73 moves in the track groove 23, it moves synchronously with the rotation of the fixed handle 5. Through the limiting effect of the track groove 23 on the positioning pin 73, the rotation angle of the valve core 3 is accurately controlled, thereby preventing the valve core 3 from being damaged due to excessive rotation of the sealing structure.

[0038] Referring to Figure 4As shown, the two ends of the track groove 23 inside correspond to the complete opening and complete closing of the valve core 3 respectively, and the operator can quickly judge the opening and closing state of the valve core 3 by observing the position of the positioning bolt 73 in the track groove 23, thereby improving the operation safety and use convenience of the hydrogen energy delivery system, solving the problem that the opening and closing state is difficult to accurately identify in the existing ball valve, and further enhancing the stability and reliability of the delivery system.

[0039] The working principle of the utility model is: the left valve body 1 and the right valve body 2 are fixed through bolts, and the valve core 3 is wrapped, so that the valve core 3 can only rotate along the valve rod 31 axis to realize opening or closing, because the existence of spring 6 makes the limiting plate 41 have a downward force, in turn makes the upper toothed plate 42 and the lower toothed plate 22 cooperate to keep the fixing of the sliding sleeve 4, and at the same time, because the convex strip 32 cooperates with the groove 43 to ensure that the sliding sleeve 4 and the valve rod 31 rotate synchronously, so that the valve rod 31 will also be locked after the upper toothed plate 42 is locked;

[0040] When it is necessary to adjust, the fixed handle 5 is held and the movable handle 71 is lifted, the two fixed bolts 72 at the top of the movable handle 71 can make the movable handle 71 only move vertically, in turn, when the movable handle 71 is lifted, the sliding sleeve 4 can be driven as a whole to move upward through the yoke plate 7, so that the upper toothed plate 42 is separated from the cooperation with the lower toothed plate 22, at this time, rotating the fixed handle 5 can drive the valve rod 31 to rotate, in turn, control the rotation of the valve core 3, this locking structure can improve the convenience when operating, only need to lift the movable handle 71 when holding the fixed handle 5, and vice versa, the movable handle 71 is automatically locked, and the yoke plate 7 and the sliding sleeve 4 are separated to facilitate subsequent maintenance and replacement;

[0041] In the process of rotating the fixed handle 5, the positioning bolt 73 is always placed inside the track groove 23 to limit the rotation angle of the valve rod 31, when rotating to one end, the valve core 3 is completely opened and the other end is completely closed, so as to facilitate judging the state of the valve core 3 when operating.

[0042] The above is only the preferred embodiment of the utility model, it should be pointed out that for ordinary skilled person in the art, without departing from the principle of the utility model, a number of improvements and refinements can be made, these improvements and refinements should also be regarded as the protection scope of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to the conventional means in the field without special description and limitation.

Claims

1. A ball valve for hydrogen energy delivery with a locking structure, comprising a left valve body (1) and a right valve body (2), characterized in that: The left valve body (1) and the right valve body (2) are sealed together. The left valve body (1) and the right valve body (2) are respectively provided with flanges at opposite ends. The right valve body (2) is fixed with an upper platform (21). The valve core (3) is rotatably installed inside the right valve body (2). The valve core (3) is provided with a valve stem (31) at the top. The valve stem (31) passes vertically through the upper platform (21). The upper platform (21) is fixed with a lower toothed plate (22) at the top. The valve stem (31) passes through the lower toothed plate (22). A sliding sleeve (4) is slidably installed on the surface of the valve stem (31). An upper toothed plate (42) with the teeth facing downward is provided at the bottom of the sliding sleeve (4). The upper toothed plate (42) corresponds to the lower toothed plate (22). A fixed handle (5) is bolted to the top of the valve stem (31).

2. The ball valve for hydrogen energy delivery with a locking structure according to claim 1, characterized in that: The valve stem (31) has symmetrically arranged protrusions (32) on its surface, and the sliding sleeve (4) has symmetrically arranged grooves (43) inside, with the protrusions (32) placed inside the grooves (43).

3. A ball valve for hydrogen energy delivery with a locking structure according to claim 1, characterized in that: The top of the sliding sleeve (4) is provided with a limiting plate (41), and a spring (6) is sleeved on the surface of the valve stem (31). The spring (6) is placed between the fixed handle (5) and the limiting plate (41).

4. A ball valve for hydrogen energy delivery with a locking structure according to claim 1, characterized in that: A movable handle (71) is arranged parallel below the fixed handle (5). A fork plate (7) is provided at one end of the movable handle (71). A U-shaped groove is provided on the surface of the fork plate (7). The fork plate (7) is placed between the limiting plate (41) and the upper tooth plate (42). The sliding sleeve (4) passes through the U-shaped groove on the surface of the fork plate (7).

5. A ball valve for hydrogen energy delivery with a locking structure according to claim 4, characterized in that: Two fixing bolts (72) are vertically arranged on the upper surface of the movable handle (71), and the two fixing bolts (72) pass through the fixing handle (5).

6. A ball valve for hydrogen energy delivery with a locking structure according to claim 4, characterized in that: The upper platform (21) has a track groove (23) on its surface, and the bottom of the movable handle (71) is vertically fixed with a positioning bolt (73), the end of which is placed inside the track groove (23).

7. A ball valve for hydrogen energy delivery with a locking structure according to claim 6, characterized in that: The two ends inside the track groove (23) correspond to the fully open and fully closed valve core (3) respectively.

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