Clutch type pneumatic and manual mechanism

Abstract

The utility model discloses a clutch type pneumatic and manual operation mechanism which comprises a shell, a cover plate is arranged at the top of the shell, a trapezoidal nut is arranged in an inner cavity of the shell, a rotating disc is arranged at the top of the trapezoidal nut, a cylindrical pin is arranged between the rotating disc and the trapezoidal nut, and a base flange is arranged on the surface of the shell in a sleeved mode. A bearing is arranged between the shell and the base flange, a switching handle is fixedly connected to the top of the left side of the rotary disc, and a first round nut is in threaded connection with the bottom of the shell. The utility model realizes the purpose of being provided with a manual-pneumatic combined operating mechanism, and solves the problems that the conventional clutch type pneumatic and manual operating mechanism has some defects in use, for example, the conventional clutch type pneumatic and manual operating mechanism is not provided with the manual-pneumatic combined operating mechanism, a user cannot conveniently switch a manual mode and a pneumatic mode, troubles are brought to the user, the requirements of the current market cannot be met, and the use cost is low. Due to the problems, the practicability and usability of the clutch type pneumatic and manual mechanism are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a clutch type gas and manual mechanism. Background Art

[0002] In large-scale oil refining plants, chemical plants and storage tank areas, many on-off gate valves are used to cut off the flow of media in pipelines. As human resource costs increase year by year, it takes a long time to open and close a valve, and the labor intensity is high, there is an urgent need to use automated devices to replace manual labor and improve work efficiency. In addition, because such working conditions generally have higher explosion-proof requirements, general electric actuators cannot meet their requirements, and the electric actuators that meet their explosion-proof requirements are costly. Therefore, pneumatic actuators have become the first choice for driving devices. In order to force the valve to be opened and closed under special circumstances, the pneumatic starting actuator needs to be equipped with a clutch-type manual operating mechanism.

[0003] However, the previous clutch-type gas and manual mechanisms have some defects in use, such as the lack of a manual-gas combined operating mechanism, and it is inconvenient for users to switch between manual and pneumatic modes, which brings trouble to users and cannot meet the needs of today's market. Due to the above problems, the practicality and usability of the clutch-type gas and manual mechanisms are reduced, and a clutch-type gas and manual mechanism is introduced in a targeted manner. Utility Model Content

[0004] The utility model aims to provide a clutch type gas and manual mechanism, which has the advantages of a manual and gas combined operating mechanism.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clutch type gas and manual mechanism, comprising a shell, a cover plate is arranged on the top of the shell, a trapezoidal nut is arranged in the inner cavity of the shell, a turntable is arranged on the top of the trapezoidal nut, a cylindrical pin is arranged between the turntable and the trapezoidal nut, a base flange is arranged on the surface of the shell, a bearing is arranged between the shell and the base flange, and a switching handle is fixedly connected to the top of the left side of the turntable.

[0006] As a preferred solution, a first round nut is threadedly connected to the bottom of the shell, and a first O-ring is arranged at the bottom of the base flange.

[0007] As a preferred solution, a locking pin is provided through the top of the switching handle, and the switching handle and the cover plate are locked by the locking pin.

[0008] As a preferred solution, a sealing ring is provided between the base flange and the housing, and a second O-ring is provided between the housing and the turntable.

[0009] As a preferred solution, a protective cover is sleeved on the top of the cover plate, a second round nut is penetrated through the top of the protective cover, the protective cover and the cover plate are fixedly connected by the second round nut, and a third O-ring is arranged between the bottom of the protective cover and the top of the cover plate.

[0010] As a preferred solution, handles are fixedly connected to the four sides of the shell surface, and the surface of the handles is provided with anti-slip patterns.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model achieves the purpose of having a manual-gas combined operating mechanism, and solves some defects in the use of previous clutch-type gas and manual mechanisms, such as the lack of a manual-gas combined operating mechanism, and the inconvenience of users switching between manual and pneumatic modes, which brings troubles to users and cannot meet the needs of the current market. Due to the above problems, the practicality and usability of the clutch-type gas and manual mechanisms are reduced.

[0013] 2. The utility model allows the user to lift the lock pin and then turn the switching handle, which drives the turntable to rotate 90°, and then close the trapezoidal nut or the discrete trapezoidal nut. When the trapezoidal nut is closed, the handle is rotated by hand, and the trapezoidal nut will drive the trapezoidal screw to move up or down. When the product is installed on the pneumatic actuator, the trapezoidal screw is connected to the cylinder piston rod. In the discrete trapezoidal nut state, it is pneumatically controlled, and in the closed trapezoidal nut state, it can be manually operated. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0015] Figure 2 This is a top view of the structure of the utility model;

[0016] Figure 3 It is the front view of the local structure of the utility model.

[0017] In the figure: 1. housing; 2. cover plate; 3. trapezoidal nut; 4. turntable; 5. cylindrical pin; 6. base flange; 7. bearing; 8. switching handle; 9. first round nut; 10. first O-ring; 11. locking pin; 12. sealing ring; 13. second O-ring; 14. shield; 15. second round nut; 16. third O-ring; 17. handle. DETAILED DESCRIPTION

[0018] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0020] Embodiment 1:

[0021] See also Figure 1-Figure 3 As shown, the utility model provides a clutch type gas and manual mechanism, including a shell 1, a cover plate 2 is arranged on the top of the shell 1, a trapezoidal nut 3 is arranged in the inner cavity of the shell 1, a turntable 4 is arranged on the top of the trapezoidal nut 3, a cylindrical pin 5 is arranged between the turntable 4 and the trapezoidal nut 3, a base flange 6 is sleeved on the surface of the shell 1, a bearing 7 is arranged between the shell 1 and the base flange 6, and a switching handle 8 is fixedly connected to the top of the left side of the turntable 4.

[0022] The technical solution sets up the application of trapezoidal nut 3, turntable 4, cylindrical pin 5, base flange 6, bearing 7 and switching handle 8, and its specific role is to achieve the purpose of having a manual-gas combined operating mechanism, and solve some defects in the use of previous clutch-type gas and manual mechanisms, such as the lack of a manual-gas combined operating mechanism, and the inconvenience for users to switch between manual and pneumatic modes, which brings troubles to users and cannot meet the needs of today's market. Due to the above problems, the practicality and usability of the clutch-type gas and manual mechanisms are reduced.

[0023] Embodiment 2:

[0024] On the basis of embodiment 1, the present invention is as follows Figure 1-Figure 3 As shown, it is disclosed that the bottom of the shell 1 is threadedly connected with a first round nut 9, the bottom of the base flange 6 is provided with a first O-ring 10, the top of the switching handle 8 is penetrated by a locking pin 11, the switching handle 8 and the cover plate 2 are locked by the locking pin 11, a sealing ring 12 is provided between the base flange 6 and the shell 1, and a second O-ring 13 is provided between the shell 1 and the turntable 4.

[0025] The above technical solution is adopted mainly to achieve the purpose of connection and fixation. The specific functions are as follows: the base flange 6 can be connected and fixed by the first round nut 9, the sealing of the connection can be improved by the first O-ring 10 and the second O-ring 13, and the sealing of the connection between the base flange 6 and the shell 1 can be improved by the sealing ring 12.

[0026] Embodiment three:

[0027] On the basis of the second embodiment, the present invention is as follows Figure 1-Figure 3 As shown, a shield 14 is provided on the top of the cover plate 2, a second round nut 15 is provided through the top of the shield 14, the shield 14 and the cover plate 2 are fixedly connected by the second round nut 15, a third O-ring 16 is provided between the bottom of the shield 14 and the top of the cover plate 2, and a handle 17 is fixedly connected to the surface of the shell 1 on all sides, and the surface of the handle 17 is provided with anti-slip grooves.

[0028] The above technical solution is adopted mainly to achieve the purpose of protection and convenient rotation. The specific functions are: the top of the turntable 4 can be protected by the shield 14, the shield 14 can be connected and fixed by the second round nut 15, the sealing of the connection can be improved by the third O-ring 16, and the handle 17 is convenient for the user to rotate the shell 1.

[0029] The working principle of the utility model is: the user lifts the locking pin 11 and then turns the switching handle 8, which drives the turntable 4 to rotate 90°, and then closes the trapezoidal nut 3 or the discrete trapezoidal nut 3. When the trapezoidal nut 3 is closed, the handle 17 is rotated by hand, and the trapezoidal nut 3 will drive the trapezoidal screw to move upward or downward. When the product is installed on the pneumatic actuator, the trapezoidal screw is connected to the cylinder piston rod. In the discrete trapezoidal nut 3 state, it is pneumatically controlled, and in the closed trapezoidal nut 3 state, it can be manually operated.

[0030] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0031] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A clutch type gas and manual mechanism, comprising a housing (1), characterized in that: A cover plate (2) is arranged on the top of the shell (1), a trapezoidal nut (3) is arranged in the inner cavity of the shell (1), a turntable (4) is arranged on the top of the trapezoidal nut (3), a cylindrical pin (5) is arranged between the turntable (4) and the trapezoidal nut (3), a base flange (6) is sleeved on the surface of the shell (1), a bearing (7) is arranged between the shell (1) and the base flange (6), and a switching handle (8) is fixedly connected to the top of the left side of the turntable (4).

2. A clutch type gas and manual mechanism according to claim 1, characterized in that: The bottom of the housing (1) is threadedly connected with a first round nut (9), and the bottom of the base flange (6) is provided with a first O-ring (10).

3. A clutch type gas and manual mechanism according to claim 1, characterized in that: A locking pin (11) is provided through the top of the switching handle (8), and the switching handle (8) and the cover plate (2) are locked by the locking pin (11).

4. A clutch type gas and manual mechanism according to claim 1, characterized in that: A sealing ring (12) is provided between the base flange (6) and the housing (1), and a second O-ring (13) is provided between the housing (1) and the rotating disk (4).

5. A clutch type gas and manual mechanism according to claim 1, characterized in that: The top of the cover plate (2) is sleeved with a protective cover (14), the top of the protective cover (14) is penetrated by a second round nut (15), the protective cover (14) and the cover plate (2) are fixedly connected via the second round nut (15), and a third O-ring (16) is provided between the bottom of the protective cover (14) and the top of the cover plate (2).

6. A clutch type gas and manual mechanism according to claim 1, characterized in that: The shell (1) is fixedly connected to a handle (17) on all four sides of the surface, and the surface of the handle (17) is provided with anti-slip grooves.

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