Pressing type opening and closing structure for valve

Abstract

The utility model relates to the technical field of valves, in particular to a pressing type opening and closing structure for a valve, which comprises an upper valve core and a lower valve core vertically arranged at the lower end of the upper valve core at intervals, an outer gland is sleeved outside the upper valve core and the lower valve core, and the upper end of the upper valve core extends out of the top of the outer gland. A fixing piece used for pressing the upper valve element is detachably arranged at the top end of the outer gland, the lower end of the lower valve element extends out of the bottom of the outer gland, a sleeve located between the upper valve element and the lower valve element is arranged in the outer gland in a sliding mode, and the sleeve comprises a first groove hole correspondingly matched with the lower end of the upper valve element. The sleeve further comprises a second slotted hole correspondingly matched with the upper end of the lower valve element, the upper end of the lower valve element extends into the second slotted hole in a sliding mode, and the sleeve moves up and down in the outer gland to achieve connection or separation of the upper valve element and the lower valve element. The valve element can be effectively isolated from the external environment, the service life of the valve is prolonged, and the performance stability of the valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a press-type opening and closing structure for valves. Background Art

[0002] The valve shaft, as the core component of a rotary valve such as a gate valve or a ball valve, is usually cylindrical and made of metal, with raised parts at both ends for connecting gears or handles. When the operator rotates the handle, the valve shaft rotates accordingly, thereby controlling the opening and closing state of the valve.

[0003] However, the valve shaft is very easy to rust in a humid environment, which not only hinders its rotation and affects the normal operation of the valve, but also conventional anti-rust measures such as anti-rust paint are easy to fail during the rotation of the valve shaft, making it difficult to provide long-term and effective anti-rust protection. In addition, in order to ensure the safe operation of the valve and prevent non-professionals from arbitrarily rotating the valve shaft, it is usually necessary to separate the valve shaft from the valve stem.

[0004] Therefore, it is particularly important to provide necessary protection for the valve shaft, which can not only effectively prevent it from corrosion and extend its service life, but also ensure the safe and stable operation of the valve and avoid potential risks caused by misoperation by non-professionals. Utility Model Content

[0005] The utility model provides a push-type opening and closing structure for a valve, so as to solve the technical problem in the prior art that the valve core is exposed to the external environment and is easily corroded, which causes the safety of use.

[0006] In order to solve the above problems, the push-type opening and closing structure for a valve provided by the utility model adopts the following technical solutions:

[0007] It includes an upper valve core and a lower valve core vertically spaced at the lower end of the upper valve core, the upper valve core and the lower valve core are jointly sleeved with an outer pressure cover, the upper end of the upper valve core extends out of the top of the outer pressure cover, the top of the outer pressure cover is detachably provided with a fixing part for pressing the upper valve core, the lower end of the lower valve core extends out of the bottom of the outer pressure cover, a sleeve is slidably provided in the outer pressure cover and is located between the upper valve core and the lower valve core, the sleeve includes a first slot hole corresponding to the lower end of the upper valve core, the sleeve also includes a second slot hole corresponding to the upper end of the lower valve core, and the upper end of the lower valve core slides into the second slot hole, and the sleeve moves up and down in the outer pressure cover to realize the connection or disconnection of the upper valve core and the lower valve core.

[0008] Furthermore, a through hole is axially provided in the upper valve core, a push rod is provided in the through hole, a convex shaft is provided on the side wall of the push rod, a U-shaped groove is provided on the side wall of the upper valve core, the U-shaped groove includes a first slide groove and a second slide groove of inconsistent lengths, and the convex shaft moves in the U-shaped groove to realize the movement of the sleeve driven by the push rod.

[0009] Furthermore, a partition is formed between the second slot hole and the first slot hole, and the sleeve is driven to move downward by pressing the partition during the downward movement of the push rod.

[0010] Furthermore, a first limiting platform is provided inside the bottom end of the outer pressure cover, a limiting plate is provided on the top outer wall of the sleeve, and a spring is provided on the sleeve outer sleeve between the first limiting platform and the limiting plate.

[0011] Furthermore, the top of the push rod is a square pin.

[0012] Furthermore, the cross-section of the lower end of the upper valve core and the cross-section of the upper end of the lower valve core are both polygonal.

[0013] Furthermore, a boss is provided on the outer wall of the lower end of the upper valve core, a second limit platform is provided on the upper inner wall of the outer pressure cover, and the fixing member presses the boss tightly onto the second limit platform.

[0014] Furthermore, the cross section of the fixing piece is T-shaped, the inner wall of the top of the outer pressure cover is provided with threads, the fixing piece is fixed to the top of the outer pressure cover by threaded engagement, and the upper valve core vertically penetrates the fixing piece.

[0015] The beneficial effect of the push-type opening and closing structure for valves provided by the utility model is that the utility model can realize the quick connection or separation of the upper valve core and the lower valve core by simply pressing and rotating the push rod, thereby controlling the opening and locking state of the valve, and the operation process is simple and efficient. In addition, since the upper valve core and the lower valve core are protected by a combination of structures such as an external pressure cover, they are not easily driven or damaged by the external environment, thereby ensuring the safe operation of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present invention will become easy to understand. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0017] Figure 1 It is a schematic diagram of the push-type opening and closing structure for a valve of the utility model;

[0018] Figure 2 It is a cross-sectional view of the push-type opening and closing structure for a valve of the utility model;

[0019] Figure 3 It is a schematic diagram of the cooperation between the upper valve core and the ejector rod in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the top rod in the utility model;

[0021] Figure 5 It is a schematic diagram of the cooperation between the lower valve core and the sleeve in the utility model.

[0022] Description of reference numerals:

[0023] 1. Upper valve core; 11. Through hole; 12. U-shaped groove; 121. First slide groove; 122. Second slide groove; 13. Boss; 2. Lower valve core; 3. External pressure cover; 31. First limit platform; 32. Second limit platform; 4. Fixing piece; 5. Sleeve; 51. First slot hole; 52. Second slot hole; 53. Partition plate; 54. Limit plate; 55. Spring; 6. Push rod; 61. Protruding shaft; 62. Square pin shaft. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0025] Any number of elements in the drawings is for illustration and not limitation, and any naming is for distinction only and does not have any limiting meaning.

[0026] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0027] Embodiment 1 of the push-type opening and closing structure for a valve provided by the utility model:

[0028] like Figures 1 to 5 As shown,

[0029] It includes an upper valve core 1 and a lower valve core 2 vertically spaced at the lower end of the upper valve core 1, the upper valve core 1 and the lower valve core 2 are jointly sleeved with an outer pressure cover 3, the upper end of the upper valve core 1 extends out of the top of the outer pressure cover 3, the top of the outer pressure cover 3 is detachably provided with a fixing member 4 for pressing the upper valve core 1, the lower end of the lower valve core 2 extends out of the bottom of the outer pressure cover 3, and a sleeve 5 is slidably provided in the outer pressure cover 3 and is located between the upper valve core 1 and the lower valve core 2, the sleeve 5 includes a first slot hole 51 corresponding to the lower end of the upper valve core 1, the sleeve 5 also includes a second slot hole 52 corresponding to the upper end of the lower valve core 2, and the upper end of the lower valve core 2 slides into the second slot hole 52, and the sleeve 5 moves up and down in the outer pressure cover 3 to realize the connection or disconnection of the upper valve core 1 and the lower valve core 2.

[0030] Among them, the overall structure is compact and easy to operate flexibly, which prevents interference and drive from the external environment and enhances the safety of the valve.

[0031] In this embodiment, a through hole 11 is axially provided in the upper valve core 1, a push rod 6 is provided in the through hole 11, a convex shaft 61 is provided on the side wall of the push rod 6, a U-shaped groove 12 is provided on the side wall of the upper valve core 1, the U-shaped groove 12 includes a first slide groove 121 and a second slide groove 122 of inconsistent lengths, and the convex shaft 61 moves in the U-shaped groove 12 to drive the sleeve 5 to move through the push rod 6.

[0032] A partition plate 53 is formed between the second slot hole 52 and the first slot hole 51 , and the push rod 6 drives the sleeve 5 to move downward by pressing the partition plate 53 during the downward movement.

[0033] Specifically, by moving the convex shaft 61 in the U-shaped groove 12, the upper and lower positions of the push rod 6 can be accurately controlled, and then the sleeve 5 can be driven by the push rod 6, which simplifies the operation process and enhances the stability of the structure.

[0034] In this embodiment, a first limit platform 31 is provided inside the bottom end of the outer pressure cover 3, a limit plate 54 is provided on the top outer wall of the sleeve 5, and a spring 55 is provided on the outer sleeve 5 between the first limit platform 31 and the limit plate 54.

[0035] The presence of the spring 55 provides a buffering effect for the movement of the sleeve 5, reducing structural damage or wear caused by impact or rapid movement. At the same time, the restoring force of the spring 55 enables the sleeve 5 to automatically reset after the pressure of the push rod 6 is released, and return to the initial state, ensuring the stability and reliability of the valve structure.

[0036] The top of the push rod 6 is a square pin 62 .

[0037] The cross section of the lower end of the upper valve core 1 and the cross section of the upper end of the lower valve core 2 are both hexagonal.

[0038] In this embodiment, a boss 13 is provided on the lower outer wall of the upper valve core 1 , a second limit platform 32 is provided on the upper inner wall of the outer pressure cover 3 , and the fixing member 4 presses the boss 13 onto the second limit platform 32 .

[0039] The cross section of the fixing member 4 is T-shaped, the inner wall of the top of the outer pressure cover 3 is provided with threads, the fixing member 4 is fixed to the top of the outer pressure cover 3 by threaded engagement, and the upper valve core 1 vertically penetrates the fixing member 4 .

[0040] The fixing member 4 is firmly fixed to the top of the outer gland 3 by threaded engagement, ensuring that the upper valve core 1 will not loosen or move during the operation of the valve. At the same time, the engagement of the boss 13 and the second limit platform 32 further enhances the stability of the upper valve core 1 and prevents displacement caused by vibration or external force.

[0041] During specific use, the push rod 6 is pressed downward and the convex shaft 61 on one side of the push rod 6 slides down along the first slide groove 121. After the convex shaft 61 slides down to the bottom end of the first slide groove 121, the push rod 6 is rotated clockwise to make the convex shaft 61 enter the second slide groove 122. During the downward movement of the push rod 6, the sleeve 5 is pushed to move downward. The height of the second slide groove 122 is lower than that of the first slide groove 121, so that the top end 6 presses the sleeve 5 downward, and at the same time, the sleeve 5 compresses the spring 55. After the sleeve 5 moves downward, the upper valve core 1 and the lower valve core 2 are disengaged. At this time, the structure is in a locked state.

[0042] When the push rod 6 is pressed again and the convex shaft 61 rotates counterclockwise to an angle that causes the convex shaft 61 to enter the first slide groove 121, the push rod 6 releases the pressure on the sleeve 5, and the compressed spring 55 moves the sleeve 5 upward and resets under the action of the restoring force, and connects the upper valve core 1 and the lower valve core 2 together. At this time, the structure is in an open state.

[0043] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and other terms indicating orientation or position relationship are based on the orientation or position relationship shown in the drawings of this specification, which are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0044] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A push-type opening and closing structure for a valve, characterized in that: The invention comprises an upper valve core (1) and a lower valve core (2) vertically spaced at the lower end of the upper valve core (1); the upper valve core (1) and the lower valve core (2) are together sleeved with an outer pressure cover (3); the upper end of the upper valve core (1) extends out of the top of the outer pressure cover (3); the top of the outer pressure cover (3) is detachably provided with a fixing member (4) for pressing the upper valve core (1); the lower end of the lower valve core (2) extends out of the bottom of the outer pressure cover (3); the outer pressure cover (3) is slidably provided with a fixing member (4) for pressing the upper valve core (1); A sleeve (5) is provided between an upper valve core (1) and a lower valve core (2), wherein the sleeve (5) comprises a first slot hole (51) corresponding to the lower end of the upper valve core (1), and the sleeve (5) further comprises a second slot hole (52) corresponding to the upper end of the lower valve core (2), and the upper end of the lower valve core (2) slides into the second slot hole (52), and the sleeve (5) moves up and down in the outer pressure cover (3) to realize the connection or disconnection of the upper valve core (1) and the lower valve core (2).

2. The push-type opening and closing structure for a valve according to claim 1, characterized in that: A through hole (11) is axially provided in the upper valve core (1), a push rod (6) is provided in the through hole (11), a convex shaft (61) is provided on the side wall of the push rod (6), a U-shaped groove (12) is provided on the side wall of the upper valve core (1), the U-shaped groove (12) comprises a first slide groove (121) and a second slide groove (122) of inconsistent lengths, and the convex shaft (61) moves in the U-shaped groove (12) to achieve movement of the sleeve (5) driven by the push rod (6).

3. The push-type opening and closing structure for a valve according to claim 2, characterized in that: A partition plate (53) is formed between the second slot hole (52) and the first slot hole (51), and when the push rod (6) moves downward, the sleeve (5) is driven to move downward by pressing against the partition plate (53).

4. The push-type opening and closing structure for a valve according to claim 3, characterized in that: A first limiting platform (31) is provided inside the bottom end of the outer pressure cover (3), a limiting plate (54) is provided on the top outer wall of the sleeve (5), and a spring (55) is provided on the outer sleeve (5) between the first limiting platform (31) and the limiting plate (54).

5. The push-type opening and closing structure for a valve according to claim 2, characterized in that: The top of the push rod (6) is a square pin (62).

6. The push-type opening and closing structure for a valve according to claim 1, characterized in that: The cross section of the lower end of the upper valve core (1) and the cross section of the upper end of the lower valve core (2) are both polygonal.

7. The push-type opening and closing structure for a valve according to claim 1, characterized in that: The lower outer wall of the upper valve core (1) is provided with a boss (13), the upper inner wall of the outer pressure cover (3) is provided with a second limit platform (32), and the fixing member (4) presses the boss (13) onto the second limit platform (32).

8. The push-type opening and closing structure for a valve according to claim 7, characterized in that: The cross section of the fixing member (4) is T-shaped, the inner wall of the top of the outer pressure cover (3) is provided with threads, the fixing member (4) is fixed to the top of the outer pressure cover (3) by threaded engagement, and the upper valve core (1) vertically penetrates the fixing member (4).

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