An electrically operated stop valve assembly

Abstract

This utility model provides an electric shut-off valve assembly, relating to the technical field of electric shut-off valves, including a motor, a shut-off valve, and a manual device. The shut-off valve includes a valve stem, a valve body, and a steel ball. A through-hole valve body channel is provided within the valve body. The steel ball is disposed within the valve body and has a medium channel that mates with the valve body channel. One end of the valve stem is connected to the steel ball, and the other end passes through the valve body and is connected to the output shaft of the motor. The manual device is connected to the output shaft of the motor via a transmission component. This utility model solves the problem of difficulty in adjusting the valve opening due to the large pressure difference at both ends of a ball-shaped shut-off valve. It also includes a manual device that allows for manual opening and closing in case of motor failure.

Description

Technical Field

[0001] This utility model relates to the technical field of electric shut-off valves, and more specifically, to an electric shut-off valve assembly. Background Technology

[0002] Ball valves are commonly used in the hydraulic pipelines of fully mechanized coal mining underground. Due to the working environment, the hydraulic pressure in the pipelines is very high. When it is necessary to open the ball valve, the pressure difference between the two ends of the ball valve is more than 30MPa. It is difficult to turn the rotating rod of the ball valve by hand, and the driving rod may even break. If this happens during the operation, it will affect the progress of the work and may cause huge losses. Utility Model Content

[0003] To address the problem in the prior art where the large pressure difference between the two ends of a spherical shut-off valve makes it difficult to rotate the rotating rod, this utility model provides an electric shut-off valve assembly.

[0004] In view of this, one aspect of the present invention provides an electric shut-off valve assembly, including a motor, a shut-off valve, and a manual device. The shut-off valve includes a valve stem, a valve body, and a steel ball. A through-hole valve body channel is provided in the valve body. The steel ball is disposed in the valve body and has a medium channel that cooperates with the valve body channel. One end of the valve stem is connected to the steel ball, and the other end passes through the valve body and is connected to the output shaft of the motor. The manual device is connected to the output shaft of the motor through a transmission component.

[0005] In some embodiments, a speed reducer is also included, through which the output shaft of the motor is connected to the valve stem.

[0006] In some embodiments, the output shaft of the reducer is connected to the valve stem via an adapter.

[0007] In some embodiments, the adapter includes a first connecting portion and a second connecting portion, the first connecting portion being connected to the output shaft of the reducer, and the second connecting portion being sleeved on the end of the valve stem.

[0008] In some embodiments, a first limiting member is provided on the outer side of the adapter, the first limiting member being able to rotate synchronously with the valve stem, and a second limiting member is provided on the valve body, the second limiting member being used to limit the rotation angle of the first limiting member.

[0009] In some embodiments, the first limiting member has a notch that matches the second limiting member, and the second limiting member moves within the notch.

[0010] In some embodiments, the transmission component includes a first bevel gear and a second bevel gear that mesh with each other, the first bevel gear being connected to the output shaft of the motor, and the second bevel gear being connected to the manual device.

[0011] In some embodiments, the steel ball has a groove that engages with the end of the valve stem.

[0012] In some embodiments, the valve body includes a first valve body and a second valve body connected together; a first valve seat is installed inside the first valve body, a second valve seat is installed inside the second valve body, and the steel ball is disposed between the first valve seat and the second valve seat.

[0013] In some embodiments, the motor is an intrinsically safe motor.

[0014] This embodiment of the utility model uses an intrinsically safe motor to drive the valve stem rotation, which solves the problem of difficulty in adjusting the valve opening due to the large pressure difference at both ends of the ball gate valve. It also includes a manual device so that the valve can be manually opened and closed when the motor fails.

[0015] To make the above-mentioned objects, features and advantages of the present utility model embodiments more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with or without letter suffixes may indicate different instances of similar parts. The drawings generally illustrate various embodiments by way of example rather than limitation and, together with the description and claims, serve to illustrate the disclosed embodiments. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the apparatus or method. The accompanying drawings, which are provided to further understand the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with their description, serve to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the electric shut-off valve assembly provided in an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the first and second limiting members of the electric shut-off valve assembly provided in this embodiment of the utility model.

[0019] Among them, the above-mentioned appendix Figures 1 to 2 The following reference numerals are included:

[0020] 100-Motor; 200-Reducer; 201-Adapter; 2011-First Connecting Part; 2012-Second Connecting Part; 300-Stop Valve; 301-Valve Stem; 302-Valve Body; 3021-First Valve Body; 3022-Second Valve Body; 303-Steel Ball; 3031-Media Channel; 3032-Slot; 304-Valve Seat; 3041-First Valve Seat; 3042-Second Valve Seat; 400-Limiting Part; 401-First Limiting Part; 4011-Notch; 402-Second Limiting Part; 500-Manual Device; 600-Sealing Ring; 700-Gear; 701-First Bevel Gear; 702-Second Bevel Gear. Detailed Implementation

[0021] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but these are not intended to limit the scope of the present invention.

[0022] It should be understood that various modifications can be made to the embodiments disclosed herein. Therefore, the above description should not be considered as limiting, but merely as an example of embodiments. Other modifications within the scope and spirit of this invention will be apparent to those skilled in the art.

[0023] The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the present invention and, together with the general description of the present invention given above and the detailed description of the embodiments given below, serve to explain the principles of the present invention.

[0024] These and other features of the present invention will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0025] It should also be understood that although the present invention has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of the present invention, which have the features described in the claims and are therefore all within the scope of protection defined herein.

[0026] The above and other aspects, features and advantages of the present invention will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0027] Specific embodiments of the present invention will now be described with reference to the accompanying drawings; however, it should be understood that the disclosed embodiments are merely examples of the present invention, which may be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that could obscure the present invention. Therefore, the specific structural and functional details disclosed herein are not intended to be limiting, but merely to serve as the basis and representative basis for the claims to teach those skilled in the art to use the present invention in a variety of substantially any suitable detailed structures.

[0028] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0029] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in other embodiments,” all of which may refer to one or more of the same or different embodiments according to the present invention.

[0030] like Figure 1 and Figure 2 As shown, embodiments of this disclosure provide an electric shut-off valve assembly, particularly an intrinsically safe electric shut-off valve assembly for mining applications, which includes a motor 100 and a shut-off valve 300. The output shaft of the motor 100 is connected to the shut-off valve 300, and the operation of the shut-off valve 300 can be controlled by the motor 100.

[0031] The shut-off valve 300 includes a valve stem 301, a valve body 302, and a steel ball 303. The valve stem 301 is mounted on the valve body 302 and rotatably connected to it. The valve stem 301 is used to receive external torque. A through-passage valve body channel is provided inside the valve body 302. The through-passage direction of the valve body channel is perpendicular to the connection direction between the motor 100 and the shut-off valve 300. The steel ball 303 is disposed inside the valve body 302. One end of the valve stem 301 is connected to the output shaft of the motor 100, and the other end is connected to the steel ball 303. The rotation of the valve stem 301 drives the rotation of the steel ball 303, thereby opening or closing the valve body channel.

[0032] Furthermore, the valve body 302 adopts a split structure, comprising a first valve body 3021 and a second valve body 3022, which are connected as a single unit. A valve seat 304 is disposed inside the valve body 302, comprising a first valve seat 3041 and a second valve seat 3042. The first valve seat 3041 is installed inside the first valve body 3021, and the second valve seat 3042 is installed inside the second valve body 3022. The steel ball 303 is disposed between the first valve seat 3041 and the second valve seat 3042. Additionally, a sealing ring 600 is provided at the connection between the first valve body 3021 and the second valve body 3022 to prevent media leakage.

[0033] Furthermore, in this embodiment, the first valve body 3021 is provided with a first mounting hole for the valve stem 301 to pass through. The first mounting hole is rotatably connected to the valve stem 301, and a sealing ring 600 is provided between the first mounting hole and the valve stem 301 to prevent leakage of the medium.

[0034] In this embodiment, a medium channel 3031 is provided on the steel ball 303. The rotation of the steel ball 303 is driven by the valve stem 301, so that the medium channel 3031 and the valve body channel achieve different degrees of communication, thereby adjusting the opening degree of the shut-off valve 300.

[0035] Furthermore, the bottom of the valve stem 301 is connected to the steel ball 303, wherein the steel ball 303 is provided with a groove 3032, and the groove 3032 is engaged with the end of the valve stem 301.

[0036] The motor 100 in this embodiment is an intrinsically safe motor, which has explosion-proof performance and can be used in mines. Specifically, in this embodiment, the intrinsically safe motor is made of low-power semiconductor devices (such as MOSFETs and IGBTs), which can reduce the risk of heat generation and electrical sparks; Zener safety barriers or isolation barriers are added to the circuit to limit energy transmission in hazardous areas; electromagnetic shielding and filtering technologies are used to suppress high-frequency interference and prevent accidental discharge; the outer casing is made of impact-resistant and corrosion-resistant materials (such as stainless steel or antistatic plastic).

[0037] In this embodiment, in the underground coal mine environment, workers can drive the valve stem 301 to rotate via the motor 100, thereby causing the steel ball 303 to rotate, to open or close the channel within the valve body 302, thus adjusting the opening of the shut-off valve 300. This also overcomes the technical problem of existing ball shut-off valves having a large pressure difference at both ends, making it difficult to adjust the shut-off valve opening.

[0038] In this embodiment, to avoid difficulties in operating the shut-off valve 300 when the motor 100 malfunctions, the electric shut-off valve assembly further includes a manual device 500. The manual device 500 is connected to the output shaft of the motor 100 via a transmission component 700. When the motor 100 malfunctions, the shut-off valve 300 can be manually opened and closed using the manual device 500, thus avoiding disruption to the work progress. Preferably, the manual device 500 is a handle or a handwheel.

[0039] Furthermore, in this embodiment, the transmission component 700 includes a first bevel gear 701 and a second bevel gear 702 that mesh with each other. The first bevel gear 701 is connected to the output shaft of the motor 100, and the second bevel gear 702 is connected to the output end of the manual device 700. The teeth of the first bevel gear 701 and the second bevel gear 702 are meshed with each other.

[0040] When the manual device 700 is operated to rotate, the output shaft of the motor 100 can be rotated through the meshing of the first bevel gear 701 and the second bevel gear 702, thereby driving the valve stem 301 to rotate, and ultimately realizing the rotation of the steel ball 303. Furthermore, this embodiment uses a bevel gear connection method, which can change the direction of transmission, allowing the manual device 700 to be positioned on the side of the motor 100, avoiding the occupation of space in the axial direction of the motor 100, and also facilitating operation by the operator.

[0041] In some embodiments, the electric shut-off valve assembly further includes a speed reducer 200 disposed between the motor 100 and the shut-off valve 300, wherein the output shaft of the speed reducer 200 is connected to the valve stem 301, and the speed reducer 200 is capable of adjusting the rotational speed output by the motor 100.

[0042] Furthermore, the output shaft of the reducer 200 is connected to the valve stem 301 via an adapter 201. The adapter 201 facilitates the connection between the reducer 200 and the valve stem 301, thereby enabling the torque output by the reducer 200 to be transmitted to the valve stem 301.

[0043] Specifically, the adapter 201 includes a first connecting part 2011 and a second connecting part 2012. The first connecting part 2011 is connected to the output shaft of the reducer 200, and the second connecting part 2012 is sleeved on the end of the valve stem 301. The adapter 201 can transmit power to drive the valve stem 301 to rotate.

[0044] Furthermore, such as Figure 2 As shown, a limiting member 400 is provided on the outer side of the adapter 201. More specifically, the limiting member 400 includes a first limiting member 401 and a second limiting member 402. The first limiting member 401 is sleeved on the outer side of the adapter 201, and the second limiting member 402 is disposed on the upper surface of the valve body 302. A second mounting hole is provided on the upper surface of the valve body 302, and the second limiting member 402 is installed in the second mounting hole.

[0045] When the output shaft of the reducer 200 drives the first limiting member 401 to rotate through the adapter 201, it can interfere with the second limiting member 402. Thus, the rotation angle of the output shaft of the reducer 200 is limited by the interference between the second limiting member 402 and the first limiting member 401, thereby preventing the steel ball 303 from rotating excessively.

[0046] In one specific implementation, such as Figure 2 As shown, the first limiting member 401 is an annular structure, which is convenient to be sleeved on the adapter 201. The first limiting member 401 is provided with a notch 4011. The circumferential length of the notch 4011 is related to the rotation range of the adapter 201. The second limiting member 402 is a positioning pin. The positioning pin 402 matches the notch 4011 and moves within the range of the notch 4011, thereby limiting the rotation angle of the first limiting member 4011.

[0047] This embodiment of the utility model uses an intrinsically safe motor to drive the valve stem rotation, which solves the problem of difficulty in adjusting the valve opening due to the large pressure difference at both ends of the ball gate valve. It also includes a manual device so that the valve can be manually opened and closed when the motor fails.

[0048] In the above embodiments of this utility model, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0049] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, rotated 90 degrees, or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0050] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.

[0051] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0052] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electrically operated shut-off valve assembly, characterized in that, The device includes a motor, a shut-off valve, and a manual control device. The shut-off valve includes a valve stem, a valve body, and a steel ball. A through-hole valve body channel is provided inside the valve body. The steel ball is disposed inside the valve body and has a medium channel that cooperates with the valve body channel. One end of the valve stem is connected to the steel ball, and the other end passes through the valve body and is connected to the output shaft of the motor. The manual control device is connected to the output shaft of the motor through a transmission component.

2. The electric shut-off valve assembly according to claim 1, characterized in that, It also includes a speed reducer, through which the output shaft of the motor is connected to the valve stem.

3. The electric shut-off valve assembly according to claim 2, characterized in that, The output shaft of the reducer is connected to the valve stem via an adapter.

4. The electric shut-off valve assembly according to claim 3, characterized in that, The adapter includes a first connecting part and a second connecting part. The first connecting part is connected to the output shaft of the reducer, and the second connecting part is sleeved on the end of the valve stem.

5. The electrically operated shut-off valve assembly according to claim 3, characterized in that, The adapter is provided with a first limiting member on its outer side. The first limiting member can rotate synchronously with the valve stem. The valve body is provided with a second limiting member, which is used to limit the rotation angle of the first limiting member.

6. The electrically operated shut-off valve assembly according to claim 5, characterized in that, The first limiting member has a notch that matches the second limiting member, and the second limiting member moves within the notch.

7. The electrically operated shut-off valve assembly according to claim 1, characterized in that, The transmission component includes a first bevel gear and a second bevel gear that mesh with each other. The first bevel gear is connected to the output shaft of the motor, and the second bevel gear is connected to the manual device.

8. The electric shut-off valve assembly according to claim 1, characterized in that, The steel ball has a slot, which is engaged with the end of the valve stem.

9. The electrically operated shut-off valve assembly according to claim 1, characterized in that, The valve body includes a first valve body and a second valve body that are spliced ​​together; the first valve body has a first valve seat installed inside, the second valve body has a second valve seat installed inside, and the steel ball is disposed between the first valve seat and the second valve seat.

10. The electrically operated shut-off valve assembly according to claim 1, characterized in that, The motor is an intrinsically safe motor.

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