Valve hydraulic driver

Abstract

The utility model discloses a valve hydraulic driver which comprises a hydraulic driver body, a pair of connecting discs are symmetrically connected to the lower portion of the hydraulic driver body through a support, the outer threads of the connecting discs are connected with thread sleeves in a screwed mode, and the connecting discs are used for being connected with a connecting table of a valve body. The connecting table is sequentially provided with a stepped screw table and a boss, the connecting disc is flush with the side wall of the outer circumference of the screw table when the connecting disc is buckled on the periphery of the boss, and the screw sleeve is in threaded connection with the screw table. According to the utility model, the connecting disc is buckled outside the boss and then is overlapped with the screw table up and down, and the connecting disc and the connecting table can be screwed together by screwing the screw sleeve, so that the installation between the driver and the valve is more convenient and labor-saving, and the installation efficiency of the driver in use is improved; and the overall practicability and usability of the driver are improved.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a valve hydraulic actuator. Background Technology

[0002] With the increasing level of automation, valve opening and closing control mostly adopts electric, pneumatic, or hydraulic actuation. The main principle is to control the rotation of the valve stem through an electric, pneumatic, or hydraulic actuator. Among them, hydraulic actuation has been more widely used in valve opening and closing control due to its advantages such as large driving force, strong rapid dynamic response, excellent anti-interference performance, and ease of frequent and smooth reversal.

[0003] Current valve hydraulic actuators mostly use bolt connections when docking with valves. This type of connection not only requires multiple tools for docking, but also involves cumbersome operation steps and low installation efficiency because each bolt is independent and needs to be tightened step by step.

[0004] Therefore, we propose a valve hydraulic actuator to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a valve hydraulic actuator to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A valve hydraulic actuator includes a hydraulic actuator body. A pair of connecting discs are symmetrically connected to the lower part of the hydraulic actuator body via a bracket. The pair of connecting discs are threaded with threaded sleeves. The connecting discs are used to connect to the connecting platform of the valve body. The connecting platform is provided with a stepped threaded platform and a boss in sequence. When the connecting disc is fastened to the outer periphery of the boss, it is flush with the outer circumferential side wall of the threaded platform. The threaded sleeve and the threaded platform are also threadedly connected.

[0008] In a further embodiment, the inner wall of the connecting plate is provided with a plurality of grooves evenly distributed, and the outer wall of the boss is provided with protrusions that correspond one-to-one with the grooves.

[0009] In a further embodiment, flexible spacers are provided on the inner sidewalls of the connecting disc located between the grooves.

[0010] In a further embodiment, the lower surface of the connecting plate is provided with a plurality of positioning blocks, and the upper surface of the screw platform is provided with a plurality of positioning holes corresponding one-to-one with the positioning blocks.

[0011] In a further embodiment, the upper port of the threaded sleeve is provided with a raised edge, and the inner circle size of the raised edge is smaller than the outer circle size of the connecting disc.

[0012] In a further embodiment, a limiting groove is provided on the outer side wall of the connecting platform, and a limiting rod matching the limiting groove is movably installed on the outer side wall of the threaded sleeve via a lifting ring.

[0013] In a further embodiment, the upper end of the limiting groove is rounded to form a flared opening structure, and the bottom end of the limiting rod is inserted into the inside of the limiting groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] This utility model features a connecting disc that overlaps with the screw platform after being attached to the outside of the boss. The connecting disc and the connecting platform can then be screwed together by tightening the screw sleeve. This makes the installation of the actuator and the valve more convenient and labor-saving, improves the installation efficiency of the actuator, and enhances the overall practicality and ease of use of the actuator. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the mounting structure of the hydraulic actuator body and valve body of this utility model;

[0017] Figure 2 A bottom view of the mounting structure of the bracket, connecting plate and screw sleeve of this utility model;

[0018] Figure 3 This is a schematic diagram of the connecting platform structure of this utility model;

[0019] Figure 4 This is a half-section diagram of the connecting disc, connecting platform and screw sleeve of this utility model when locked.

[0020] In the diagram: 1. Hydraulic actuator body; 2. Bracket; 3. Connecting plate; 31. Groove; 32. Positioning block; 33. Flexible septum; 4. Screw sleeve; 41. Protrusion; 5. Valve body; 6. Connecting platform; 61. Limiting groove; 7. Screw platform; 71. Positioning hole; 8. Boss; 81. Protrusion; 9. Lifting ring; 10. Limiting rod. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 A valve hydraulic actuator includes a hydraulic actuator body 1. A pair of connecting discs 3 are symmetrically connected to the lower part of the hydraulic actuator body 1 via a bracket 2. The pair of connecting discs 3 are fastened together to form a connecting ring. A threaded sleeve 4 is screwed onto the external threads of the pair of connecting discs 3, and the threaded sleeve 4 locks the pair of connecting discs 3. The connecting discs 3 are used to connect to the connecting platform 6 of the valve body 5. The connecting platform 6 is provided with a stepped threaded platform 7 and a boss 8 in sequence. The valve stem of the valve passes through the center of the top of the boss 8. When the connecting disc 3 is fastened to the outer periphery of the boss 8, it is flush with the outer circumferential side wall of the threaded platform 7. The threaded sleeve 4 is also threadedly connected to the threaded platform 7. The threaded sleeve 4 simultaneously screws the connecting disc 3 and the threaded platform 7, so that the hydraulic actuator body 1 can be installed on the valve, which is convenient to operate.

[0025] To improve connection stability, the inner wall of the connecting plate 3 is provided with several grooves 31 evenly distributed, and the outer wall of the boss 8 is provided with protrusions 81 corresponding to the grooves 31. At the same time, the lower surface of the connecting plate 3 is provided with several positioning blocks 32, and the upper surface of the screw platform 7 is provided with several positioning holes 71 corresponding to the positioning blocks 32. The connecting plate 3 is fastened to the outside of the boss 8, the protrusions 81 are locked inside the grooves 31, and the positioning blocks 32 are inserted into the positioning holes 71. Through the limiting of the protrusions 81 and grooves 31, as well as the positioning blocks 32 and positioning holes 71, the problem of deflection and misalignment of the connecting plate 3 when it is tightened by the screw sleeve 4 is prevented.

[0026] Flexible spacers 33 are provided on the inner sidewalls of the connecting disc 3 between the grooves 31. The flexible spacers 33 are made of elastic rubber or silicone. When the connecting disc 3 and the boss 8 are pressed together, the flexible spacers 33 are placed between the two, which improves the locking firmness and reduces shaking or loosening.

[0027] The upper end of the screw sleeve 4 has a raised edge 41 on the inner side, and the inner circle size of the raised edge 41 is smaller than the outer circle size of the connecting plate 3, so that when the screw sleeve 4 is tightened, the raised edge 41 is close to the upper edge of the connecting plate 3, which improves the locking firmness.

[0028] To prevent the connection from loosening due to the rotation of the threaded sleeve 4 during use, a limiting groove 61 is provided on the outer wall of the connecting platform 6, and a limiting rod 10 matching the limiting groove 61 is movably installed on the outer wall of the threaded sleeve 4 via a lifting ring 9. The upper end of the limiting groove 61 is rounded to form a flared open structure, and the bottom end of the limiting rod 10 is inserted into the inside of the limiting groove 61. When the threaded sleeve 4 is tightened, the limiting rod 10 is inserted into the limiting groove 61, which can limit the threaded sleeve 4, prevent the threaded sleeve 4 from deflecting, and thus improve the firmness.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A valve hydraulic actuator, comprising a hydraulic actuator body (1), characterized in that: The hydraulic actuator body (1) is symmetrically connected to a pair of connecting discs (3) via a bracket (2). The connecting discs (3) are threaded with threaded sleeves (4). The connecting discs (3) are used to connect with the connecting platform (6) of the valve body (5). The connecting platform (6) is provided with a stepped threaded platform (7) and a boss (8) in sequence. When the connecting discs (3) are fastened to the outer periphery of the boss (8), they are flush with the outer circumferential side wall of the threaded platform (7). The threaded sleeve (4) and the threaded platform (7) are also threadedly connected.

2. A valve hydraulic actuator according to claim 1, characterized in that: The inner wall of the connecting plate (3) is provided with a number of grooves (31) evenly distributed, and the outer wall of the boss (8) is provided with protrusions (81) that correspond one-to-one with the grooves (31).

3. A valve hydraulic actuator according to claim 1, characterized in that: Flexible spacers (33) are provided on the inner sidewalls between the grooves (31) of the connecting disc (3).

4. A valve hydraulic actuator according to claim 1, characterized in that: The lower surface of the connecting plate (3) is provided with a number of positioning blocks (32), and the upper surface of the screw platform (7) is provided with a number of positioning holes (71) corresponding to the positioning blocks (32).

5. A valve hydraulic actuator according to claim 1, characterized in that: The upper port of the threaded sleeve (4) is provided with a raised edge (41), and the inner circle size of the raised edge (41) is smaller than the outer circle size of the connecting disc (3).

6. A valve hydraulic actuator according to claim 1, characterized in that: The connecting platform (6) has a limiting groove (61) on its outer side wall, and a limiting rod (10) matching the limiting groove (61) is movably installed on the outer side wall of the screw sleeve (4) via a lifting ring (9).

7. A valve hydraulic actuator according to claim 6, characterized in that: The upper end of the limiting groove (61) is rounded to form a horn-shaped open structure, and the bottom end of the limiting rod (10) is inserted into the inside of the limiting groove (61).

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