Explosion-proof type multi-rotation valve electric device

Abstract

The utility model belongs to the technical field of flame-proof multi-turn valves, and discloses a flame-proof multi-turn valve electric actuator which comprises an electric actuator body, the electric actuator body comprises a flame-proof electrical shell, a turning plate is installed on the front side of the flame-proof electrical shell and connected with the flame-proof electrical shell through a hinge, and the turning plate is connected with the flame-proof electrical shell through a hinge. An electrical assembly and a digital display indicator are installed on the turning plate, a positioning assembly is arranged between the turning plate and the explosion-proof electrical shell, a protective cover is arranged on the outer side of the turning plate, the rear end of the protective cover is fixedly connected with the front end of the explosion-proof electrical shell, and the outer side wall of the protective cover is in threaded connection with a sealing cover cap. The positioning assembly comprises a square fixing pipe, internal explosion impact force is resisted between the turning plate and the explosion-proof electrical shell through a square pin rod, the overall square pin rod structure guarantees the impact force resisting effect, and the square pin rod can move so that the turning plate can be turned over rapidly.

Description

Technical Field

[0001] The utility model belongs to the technical field of explosion-proof multi-turn valves, and specifically relates to an explosion-proof multi-turn valve electric device. Background Art

[0002] An explosion-proof multi-turn valve is a type of valve with special safety performance. "Explosion-proof" means that the valve can operate safely in a potentially explosive environment. Through special design and manufacturing processes, it can effectively prevent internal electrical components or sparks from triggering an explosion in the external explosive environment. Its explosion-proof structure usually includes a sturdy outer shell, seals, and special electrical connection methods, etc., to ensure safety in a dangerous environment. "Multi-turn" means that the operation of the valve requires multiple rotations to achieve full opening or closing. This design enables the valve to precisely control the flow rate and pressure of the fluid. Multi-turn valves usually have good linear regulation characteristics and can gradually adjust the opening degree as needed to achieve fine control of the fluid. Explosion-proof multi-turn valves are widely used in industries such as petroleum, chemical, natural gas, and mines, where there are often dangerous environments such as flammable and explosive gases and dust. An explosion-proof multi-turn valve electric device is a device that converts electrical energy into mechanical energy, drives the valve to perform multi-turn motion, and has an explosion-proof function.

[0003] Chinese Patent with Application No. 202022831182.0 discloses an explosion-proof multi-turn valve electric device, which includes an electric device body. The electric device body includes an explosion-proof electrical outer shell. An opening is provided on the front side wall of the explosion-proof electrical outer shell, and the lower side edge of the opening is rotatably connected to a flap through a hinge. An electrical component and a digital display indicator are fixedly provided on the front side wall of the flap. A protective cover is sleeved outside the flap, and the rear end of the protective cover is fixedly connected to the front end of the explosion-proof electrical outer shell. A sealing cover is threadedly connected to the outer side wall of the protective cover. An L-shaped plate is fixedly connected to the upper end of the front side wall of the explosion-proof electrical outer shell, and the L-shaped plate is arranged inside the protective cover. A receiving groove is provided on the front side of the lower end of the horizontal part of the L-shaped plate. Without the need for special tools, the protective cover can be quickly opened, which is beneficial to adjusting the control mechanism inside the multi-turn electric device, and the operation efficiency is relatively high.

[0004] However, the above explosion-proof multi-turn valve electric device has the following problems in the actual use process: When the flap structure is subjected to the internal explosion impact force, it only relies on a small overlapping structure between the L-shaped plate and the baffle for blocking, resulting in a significant decrease in the anti-impact ability of the flap position.

[0005] Therefore, an explosion-proof multi-turn valve electric device is proposed to solve the above problems. Summary of the Utility Model

[0006] In order to solve the problems raised in the above background technology, the utility model provides a flameproof multi-rotation valve electric device, which has the advantage of facilitating the operation of the flap while ensuring the impact resistance of the flap position.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof multi-turn valve electric device, comprising an electric device body, the electric device body comprising an explosion-proof electrical housing, a flap is installed on the front side of the explosion-proof electrical housing, the flap is connected to the explosion-proof electrical housing through a hinge, an electrical component and a digital display indicator are installed on the flap, a positioning component is provided between the flap and the explosion-proof electrical housing, a protective cover is provided on the outer side of the flap, the rear end of the protective cover is fixedly connected to the front end of the explosion-proof electrical housing, and a sealing cover is threadedly connected to the outer wall of the protective cover;

[0008] The positioning assembly includes a square fixing tube, the square fixing tube is fixedly connected to the flap, a reset spring is installed at the middle position of the inner cavity of the square fixing tube, both ends of the reset spring are connected to square pins, the ends of the square pins that are close to each other are both in the square fixing tube, a square positioning groove is fixedly connected to the position corresponding to the square pin on the explosion-proof electrical casing, and the end of the square pin that is far away extends into the square positioning groove.

[0009] Preferably, a first sealing gasket is sleeved on the outer side of the protective cover, and the position structure of the first sealing gasket corresponds to the sealing cover.

[0010] Preferably, a second sealing gasket is provided on the inner wall of the sealing cover, and the position structure of the second sealing gasket corresponds to the protective cover.

[0011] Preferably, a side of the sealing cover away from the protective cover is fixedly connected to a handle, and a protective sleeve is provided on the handle.

[0012] Preferably, a transparent window is installed on the sealing cover at a position corresponding to the digital indicator.

[0013] Preferably, a positioning sleeve is fixedly connected to a position on the flap corresponding to the square pin rod, and the square pin rod passes through the positioning sleeve.

[0014] Preferably, a toggle plate is fixed on the square pin rod, the toggle plate is located on a side of the square pin rod away from the flap, and the toggle plate is located between the square fixing tube and the positioning sleeve.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model resists the internal explosion impact force between the flap and the explosion-proof electrical housing by setting a positioning component. The overall square pin rod structure ensures the anti-impact effect, and the square pin rod can move to facilitate the rapid flipping of the flap.

[0017] 2. By setting the first sealing washer and the second sealing washer, the utility model increases the sealing performance between the sealing cover and the protective cover, reduces the entry of external water vapor and dust, and is beneficial to protecting the internal electrical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 is a schematic diagram of the external structure of the protective cover of the utility model;

[0020] Figure 3 is a schematic diagram of the structure of the flap of the utility model;

[0021] Figure 4 is a schematic diagram of the structure of the positioning component of the utility model;

[0022] Figure 5 is a schematic diagram of the structure of the sealing cover of the utility model.

[0023] In the figure: 1. Electric device body; 2. Explosion-proof electrical housing; 3. Flap; 4. Hinge; 5. Electrical component; 6. Digital display indicator;

[0024] 7. Positioning component; 701. Square fixed tube; 702. Return spring; 703. Square pin rod; 704. Square positioning groove;

[0025] 8. Protective cover; 9. Sealing cover; 10. First sealing washer; 11. Second sealing washer; 12. Rotary handle; 13. Transparent window; 14. Positioning sleeve; 15. Poking plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Such as Figures 1 to 5As shown, the utility model provides a flameproof multi-turn valve electric device, including an electric device body 1, the electric device body 1 includes a flameproof electrical housing 2, a flap 3 is installed on the front side of the flameproof electrical housing 2, the flap 3 is connected to the flameproof electrical housing 2 through a hinge 4, an electrical component 5 and a digital display indicator 6 are installed on the flap 3, a positioning component 7 is provided between the flap 3 and the flameproof electrical housing 2, a protective cover 8 is provided on the outer side of the flap 3, the rear end of the protective cover 8 is fixedly connected to the front end of the flameproof electrical housing 2, and a sealing cover 9 is threadedly connected to the outer wall of the protective cover 8;

[0028] The positioning assembly 7 includes a square fixed tube 701, which is fixedly connected to the flap 3. A reset spring 702 is installed in the middle of the inner cavity of the square fixed tube 701. Both ends of the reset spring 702 are connected to square pins 703. The ends of the square pins 703 that are close to each other are both in the square fixed tube 701. A square positioning groove 704 is fixedly connected to the position corresponding to the square pin 703 on the flameproof electrical casing 2, and the end of the square pin 703 that is far away extends into the square positioning groove 704. The flap 3 and the flameproof electrical casing 2 rely on the square pin 703 to resist the internal explosion impact force. The overall square pin 703 structure ensures the impact resistance effect, and the square pin 703 can be moved to facilitate the rapid flipping of the flap 3.

[0029] Specifically, a first sealing gasket 10 is sleeved on the outer side of the protective cover 8 , and the position structure of the first sealing gasket 10 corresponds to the sealing cover 9 .

[0030] Furthermore, a second sealing gasket 11 is provided on the inner wall of the sealing cover 9, and the position structure of the second sealing gasket 11 corresponds to the protective cover 8, thereby increasing the sealing between the sealing cover 9 and the protective cover 8, reducing the entry of external water vapor and dust, and being beneficial to protecting the internal electrical components.

[0031] Furthermore, a side of the sealing cover 9 away from the protective cover 8 is fixedly connected to a handle 12 , and a protective sleeve is provided on the handle 12 .

[0032] It is worth noting that a transparent window 13 is installed on the sealing cover 9 at a position corresponding to the digital indicator 6 .

[0033] It is worth noting that a positioning sleeve 14 is fixedly connected to a position on the flap 3 corresponding to the square pin rod 703 , and the square pin rod 703 passes through the positioning sleeve 14 .

[0034] It is worth mentioning that a toggle plate 15 is fixed on the square pin rod 703 , the toggle plate 15 is located on the side of the square pin rod 703 away from the flap 3 , and the toggle plate 15 is located between the square fixing tube 701 and the positioning sleeve 14 .

[0035] Among them, the electrical component 5 and the digital display indicator 6 are prior arts and will not be elaborated; at the same time, the present utility model also includes a power supply, a controller, a switch, etc., which are not the main technical points of this patent and will not be elaborated.

[0036] Working principle and process: When it is necessary to open the flap 3, pinch the two toggle plates 15 by hand to make the two toggle plates 15 approach each other, thereby driving the square pin rods 703 to approach each other. As the square pin rods 703 approach, the return spring 702 in the square fixed tube 701 is in a compressed state. The square pin rods 703 move under the restriction of the square fixed tube 701 and the positioning sleeve 14 until the end of the square pin rod 703 leaves the square positioning groove 704, and then the flap 3 can be flipped along the hinge 4 position to adjust the control mechanism inside the electric device. The first sealing washer 10 and the second sealing washer 11 between the sealing cover 9 and the protective cover 8 can enhance the sealing performance of the connection, reduce the entry of external moisture and dust, and are beneficial to protecting the internal electrical components. The sealing cover 9 can be conveniently rotated through the rotary handle 12 to facilitate the removal of the sealing cover 9.

[0037] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0038] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof multi-turn valve electric device, comprising an electric device body (1), characterized in that: The electric device body (1) comprises a flameproof electrical casing (2), a flap (3) is installed on the front side of the flameproof electrical casing (2), the flap (3) is connected to the flameproof electrical casing (2) via a hinge (4), an electrical component (5) and a digital display indicator (6) are installed on the flap (3), a positioning component (7) is provided between the flap (3) and the flameproof electrical casing (2), a protective cover (8) is provided on the outer side of the flap (3), the rear end of the protective cover (8) is fixedly connected to the front end of the flameproof electrical casing (2), and a sealing cover (9) is threadedly connected to the outer wall of the protective cover (8); The positioning assembly (7) comprises a square fixing tube (701), the square fixing tube (701) being fixedly connected to the flap (3), a reset spring (702) being installed at a middle position of an inner cavity of the square fixing tube (701), two ends of the reset spring (702) being connected to square pins (703), the ends of the square pins (703) being close to each other being both located in the square fixing tube (701), a square positioning groove (704) being fixedly connected to a position on the flameproof electrical housing (2) corresponding to the square pin (703), the end of the square pin (703) being far away being extended into the square positioning groove (704).

2. The explosion-proof multi-turn valve electric device according to claim 1, characterized in that: A first sealing gasket (10) is sleeved on the outer side of the protective cover (8), and the position structure of the first sealing gasket (10) corresponds to the sealing cover (9).

3. The explosion-proof multi-turn valve electric device according to claim 1, characterized in that: A second sealing gasket (11) is provided on the inner wall of the sealing cover (9), and the position structure of the second sealing gasket (11) corresponds to that of the protective cover (8).

4. The explosion-proof multi-turn valve electric device according to claim 1, characterized in that: A side of the sealing cover (9) away from the protective cover (8) is fixedly connected to a turning handle (12), and a protective sleeve is provided on the turning handle (12).

5. An explosion-proof multi-turn valve electric device according to claim 1, characterized in that: A transparent window (13) is installed on the sealing cover (9) at a position corresponding to the digital indicator (6).

6. The explosion-proof multi-turn valve electric device according to claim 1, characterized in that: A positioning sleeve (14) is fixedly connected to a position on the flap (3) corresponding to the square pin rod (703), and the square pin rod (703) passes through the positioning sleeve (14).

7. An explosion-proof multi-turn valve electric device according to claim 6, characterized in that: A toggle plate (15) is fixed on the square pin rod (703), the toggle plate (15) is located on a side of the square pin rod (703) away from the flap (3), and the toggle plate (15) is located between the square fixed tube (701) and the positioning sleeve (14).

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