Compact electric control ball valve

Abstract

The utility model provides a compact type electric control ball valve, which belongs to the technical field of ball valves, and comprises an integrally formed valve body, the valve body comprises a medium cavity, a valve core, a valve core, a valve core and a valve core, and the medium cavity is provided with a medium outlet and a medium inlet; the transmission cavity is arranged above the medium cavity; the through hole is communicated with the medium cavity and the transmission cavity; and the motor cavity is formed in one side of the medium cavity and communicates with the transmission cavity, and the motor cavity sinks towards the bottom of the medium cavity. The motor cavity used for installing the motor is directly formed in the valve body, meanwhile, the motor cavity is arranged in a sinking mode, the overall height of the ball valve can be greatly reduced, the ball valve is particularly suitable for installation occasions with the height limited, and the structure of the ball valve is more compact.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a compact electric-controlled ball valve. Background Art

[0002] Ball valves are widely used in oil refining, long-distance pipelines, chemicals, papermaking, pharmaceuticals, water conservancy, electricity, municipal administration, steel and other industries, and they play an important role in the national economy. The opening and closing parts (balls) of ball valves are driven by the valve stem and rotate around the axis of the ball valve. They can also be used for fluid regulation and control. Multi-way ball valves can not only flexibly control the confluence, diversion, and switching of the flow direction of the medium on the pipeline, but also close any channel and connect the other two channels. This type of valve should generally be installed horizontally in the pipeline. Ball valves are divided into pneumatic ball valves, electric ball valves, and manual ball valves according to the driving method.

[0003] The motor in the current electric ball valve generally has an independent housing, which is connected to the valve body or valve cover and is generally arranged along the axial direction of the valve stem. This results in a relatively high overall height of the electric ball valve, which is not conducive to installation and use in some height-restricted occasions. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a compact electric-controlled ball valve.

[0005] The technical solution adopted by the utility model is as follows: The application provides a compact electrically-controlled ball valve, including an integrally formed valve body, the valve body including: a medium chamber, the medium chamber having a medium outlet and a medium inlet; a transmission chamber, the transmission chamber being arranged above the medium chamber; a through hole, the through hole connecting the medium chamber and the transmission chamber; and a motor chamber, the motor chamber being arranged on one side of the medium chamber and connected to the transmission chamber, the motor chamber being sunken toward the bottom of the medium chamber.

[0006] In some embodiments, a valve cover connected to the valve body is also included, the transmission chamber is located between the valve body and the valve cover, a first mounting plate is arranged between the transmission chamber and the motor chamber, the first mounting plate is provided with a plurality of connecting columns facing the valve cover, a second mounting plate is arranged on the connecting columns, and the first mounting plate, the plurality of connecting columns and the second mounting plate form a mounting frame.

[0007] In some embodiments, a motor is further included, a motor frame is provided on the side of the first mounting plate facing the motor cavity, the motor is provided on the motor frame, and a gap is left between the motor and the inner wall of the motor cavity.

[0008] In some embodiments, it also includes: a driving gear, which is connected to the motor; a gear plate, which is rotatably arranged between the motor frame and the first mounting plate, and includes an internal tooth portion meshing with the driving gear and a gear portion arranged toward the transmission cavity; a first gear shaft, which includes a first large gear portion and a first small gear portion, and one end of the first small gear portion is arranged to pass through the first mounting plate; a second gear shaft, which is rotatably arranged between the motor frame and the first mounting plate, and includes a second large gear portion and a second small gear portion, the second large gear portion is meshed with the gear portion, and the second small gear portion is meshed with the first large gear portion.

[0009] In some embodiments, it also includes: a ball, which is rotatably arranged in the medium cavity; a valve seat, which is arranged on one side of the valve body close to the medium outlet; a third gear shaft, which is meshed with the first pinion portion; a fourth gear shaft, which includes a full tooth portion and a half tooth portion arranged up and down, and the full tooth portion is meshed with the third gear shaft; a first valve stem, a first gear that rotates synchronously is arranged on the first valve stem, the first gear is meshed with the full tooth portion, and the first valve stem is connected to the ball; a second valve stem, a second gear that rotates synchronously is arranged on the second valve stem, a limited position tooth is arranged on the second gear, the second gear cooperates with the half tooth portion, the second valve stem is connected to the ball, and is sleeved outside the first valve stem.

[0010] In some embodiments, the third gear shaft, the third gear shaft, the first gear and the second gear are all disposed between the first mounting plate and the second mounting plate.

[0011] In some embodiments, a first connecting groove is provided on the sphere, and a connecting rod is eccentrically provided on the first valve stem toward one end of the sphere, and the connecting rod is inserted into the first connecting groove.

[0012] In some embodiments, a connecting protrusion is provided on the sphere, a second connecting groove is provided on the second valve stem toward the sphere, the connecting protrusion extends into the second connecting groove, a first limiting protrusion is provided on the circumferential outer wall of the second connecting groove, and a first limiting protrusion is provided on the first mounting plate toward the sphere, and the first limiting protrusion is located on the rotation path of the first limiting protrusion.

[0013] In some embodiments, a positioning protrusion is disposed on the inner bottom wall of the medium cavity, and a positioning groove matched with the positioning protrusion is disposed on the sphere.

[0014] In some embodiments, the fourth gear shaft is provided with a second limiting protrusion near the first mounting plate, the first mounting plate is provided with a second limiting protrusion, and the second limiting protrusion is located on the rotation path of the second limiting protrusion.

[0015] The beneficial effects of the utility model are as follows: in the utility model, a motor cavity for installing a motor is directly formed on the valve body, and the motor cavity is sunken, which can greatly reduce the overall height of the ball valve, is particularly suitable for some installation occasions with limited height, and makes the structure of the ball valve more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0017] Figure 1 It is an exploded view of a compact electric-controlled ball valve in the utility model;

[0018] Figure 2 It is a cross-sectional view of a compact electric-controlled ball valve in the utility model;

[0019] Figure 3 It is a schematic diagram of the gear plate in the utility model;

[0020] Figure 4 It is a schematic diagram of the first gear shaft in the utility model;

[0021] Figure 5 It is a schematic diagram of the second gear shaft in the utility model;

[0022] Figure 6 A partial schematic diagram of a compact electric-controlled ball valve in the utility model Figure 1 ;

[0023] Figure 7 It is a schematic diagram of a partial structure of a compact electric-controlled ball valve in the utility model;

[0024] Figure 8 It is a schematic diagram of the first valve stem and the ball in the utility model;

[0025] Fig. 9 It is a schematic diagram of the first valve stem, the second valve stem and the ball in the utility model;

[0026] Fig.10 A partial schematic diagram of a compact electric-controlled ball valve in the utility model Figure 2 . DETAILED DESCRIPTION

[0027] The following description provides specific application scenarios and requirements of this specification, with the purpose of enabling those skilled in the art to make and use the contents of this specification. Various local modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of this specification. Therefore, this specification is not limited to the embodiments shown, but to the widest scope consistent with the claims.

[0028] In the description of the present application, it should be noted that, unless otherwise expressly specified and limited, the terms "longitudinal", "transverse", "radial", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0029] Secondly, the terms "first", "second" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different components and should not be understood as limitations on the embodiments of the present application.

[0030] In addition, the terms "installed", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components.

[0031] For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Regarding the drawings of the present application, it should be clearly understood that the drawings are for illustration and description purposes only and are not intended to limit the scope of the present specification. It should also be understood that the drawings are not drawn to scale.

[0033] Embodiment 1:

[0034] like Figures 1 to 10As shown, a compact electrically-controlled ball valve comprises an integrally formed valve body 1, wherein the valve body 1 comprises: a medium chamber 2, a transmission chamber 3, a through hole 4 and a motor chamber 5, wherein the medium chamber 2 has a medium outlet and a medium inlet, the transmission chamber 3 is arranged above the medium chamber 2, the through hole 4 connects the medium chamber 2 and the transmission chamber 3, the motor chamber 5 is arranged at one side of the medium chamber 2 and is communicated with the transmission chamber 3, and the motor chamber 5 is sunken toward the bottom of the medium chamber 2. Through the above arrangement, the motor chamber 5 for installing the motor is directly formed on the valve body 1, and the motor chamber 5 is sunken, which can greatly reduce the overall height of the ball valve, is particularly suitable for some installation occasions with limited height, and makes the structure of the ball valve more compact.

[0035] It also includes a valve cover 6 connected to the valve body 1, which is connected to the valve body 1 by bolts. The transmission chamber 3 is located between the valve body 1 and the valve cover 6. The transmission mechanism in the transmission chamber 3 can be repaired and maintained by simply removing the valve cover 6. A first mounting plate 7 is arranged between the transmission chamber 3 and the motor chamber 5. The first mounting plate 7 is provided with a plurality of connecting columns 71 facing the valve cover 6. Generally, the connecting columns 71 are arranged at the four corners of the first mounting plate 7. A second mounting plate 8 is arranged on the connecting column 71. The first mounting plate 7, the plurality of connecting columns 71 and the second mounting plate 8 form a mounting frame. The mounting frame is used to install the transmission mechanism, such as some gear sets, so as to avoid drilling holes on the valve cover 6 and improve the sealing of the valve cover 6 to the transmission chamber 3.

[0036] It also includes a motor 9. A motor frame 10 is provided on the side of the first mounting plate 7 facing the motor cavity 5. The motor 9 is arranged on the motor frame 10, and a gap 11 is left between the motor 9 and the inner wall of the motor cavity 5, which can not only effectively dissipate heat, but also reduce the impact of the motor 9 on the valve body 1 when it is running.

[0037] Furthermore, it also includes: a driving gear 12, a gear plate 13, a first gear shaft 14 and a second gear shaft 15, and the driving gear 12 is connected to the motor 9;

[0038] The gear plate 13 is rotatably arranged between the motor frame 10 and the first mounting plate 7, and includes an inner tooth portion 131 meshing with the driving gear 12 and a gear portion 132 arranged toward the transmission chamber 3, forming a primary reduction transmission; the first gear shaft 14 includes a first large gear portion 141 and a first small gear portion 142, and one end of the first small gear portion 142 is arranged to pass through the first mounting plate 7; the second gear shaft 15 is rotatably arranged between the motor frame 10 and the first mounting plate 7, and includes a second large gear portion 151 and a second small gear portion 152, and the second large gear portion 151 is meshed with the gear portion 132 to form a secondary reduction transmission; the second small gear portion 152 is meshed with the first large gear portion 141 to form a tertiary reduction transmission, which can increase the torque and improve the control accuracy of the ball valve.

[0039] Furthermore, it also includes: a ball 16, which is rotatably arranged in the medium chamber 2; a first sealing end face on the ball 16, and a valve seat 17, which is arranged on one side of the valve body 1 close to the medium outlet, and a second sealing end face adapted to the first sealing end face is arranged on the valve seat 17.

[0040] The third gear shaft 18, the third gear shaft 18 is meshed with the first pinion portion 142, the diameter of the gear portion on the third gear shaft 18 is larger than the diameter of the first pinion portion 142, forming a four-fold reduction transmission; the fourth gear shaft 19, the fourth gear shaft 19 includes a full tooth portion 191 and a half tooth portion 192 arranged up and down, the full tooth portion 191 is meshed with the third gear shaft 18, the diameter of the full tooth portion 191 is larger than the diameter of the gear portion on the third gear shaft 18, forming a five-fold reduction transmission, thereby forming a multi-stage reduction transmission, which greatly reduces the load on the motor.

[0041] The first valve stem 20 is provided with a first gear 21 that rotates synchronously, the first gear 21 is meshed with the full gear portion 191, and the first valve stem 20 is connected to the ball 16; secondly, Figure 8 As shown, a first connecting groove 161 is provided on the sphere 16, and a connecting rod 2001 is eccentrically provided on the first valve stem 20 toward one end of the sphere 16, and the connecting rod 2001 is inserted into the first connecting groove 161, and the first connecting groove 161 is a waist-shaped hole.

[0042] The second valve stem 22, the second valve stem 22 is provided with a second gear 23 that rotates synchronously, the second gear 23 is provided with a limiting tooth 231, the second gear 23 cooperates with the half-tooth portion 192, the second valve stem 22 is connected to the ball 16, and is sleeved outside the first valve stem 20; secondly, the ball 16 is provided with a connecting protrusion 162, the second valve stem 22 is provided with a second connecting groove 221 facing the ball 16, the connecting protrusion 162 extends into the second connecting groove 221, and the circumferential outer wall of the second connecting groove 221 is provided with a first limiting protrusion 222, the first mounting plate 7 is provided with a first limiting protrusion 72 facing the ball 16, the first limiting protrusion 72 is located on the rotation path of the first limiting protrusion 222, and the first limiting protrusion 222 cooperates with the first limiting protrusion 72 to limit the rotation range of the ball 16 to prevent the ball 16 from rotating beyond the range.

[0043] The third gear shaft 18, the third gear shaft 18, the first gear 21 and the second gear 23 are all arranged between the first mounting plate 7 and the second mounting plate 8 to form an independent transmission assembly, which can be assembled separately during production, and then the transmission assembly is fixed to the valve body 1, thereby improving the assembly efficiency.

[0044] The inner bottom wall of the medium chamber 2 is provided with a positioning protrusion 201 , and the ball 16 is provided with a positioning groove 163 matched with the positioning protrusion 201 , which improves the rotation stability of the ball 16 and ensures that the ball 16 forms a reliable sealing fit with the valve seat.

[0045] The fourth gear shaft 19 is provided with a second limiting protrusion 193 near the first mounting plate 7, and the first mounting plate 7 is provided with a second limiting protrusion 701, which is located on the rotation path of the second limiting protrusion 193 to form a second limiting structure, so that the ball 16 rotates within the required range.

[0046] In summary, after reading this detailed disclosure, those skilled in the art will appreciate that the foregoing detailed disclosure may be presented only by way of example and may not be restrictive. Although not explicitly stated herein, those skilled in the art will appreciate that the requirements of this application encompass various reasonable changes, improvements and modifications to the embodiments. These changes, improvements and modifications are intended to be proposed by the present application and are within the spirit and scope of the exemplary embodiments of the present application.

[0047] In addition, it should be understood that in the foregoing description of the embodiments of the present application, in order to help understand a feature and for the purpose of simplifying the present application, the present application combines various features in a single embodiment, drawing or its description. However, this does not mean that the combination of these features is necessary. When reading the present application, it is entirely possible for a person skilled in the art to mark out a part of the devices as a separate embodiment. In other words, the embodiments in the present application can also be understood as the integration of multiple secondary embodiments. This is also true when the content of each secondary embodiment is less than all the features of a single aforementioned disclosed embodiment.

[0048] Finally, it should be understood that the embodiments of the application disclosed herein are explanations of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Therefore, the embodiments disclosed in the present application are merely examples and not limitations. Those skilled in the art can adopt alternative configurations according to the embodiments in the present application to implement the application in the present application. Therefore, the embodiments of the present application are not limited to the embodiments accurately described in the application.

Claims

1. A compact electrically controlled ball valve, comprising an integrally formed valve body (1), characterized in that: The valve body (1) comprises: A medium cavity (2), wherein the medium cavity (2) has a medium outlet and a medium inlet; A transmission chamber (3), wherein the transmission chamber (3) is arranged above the medium chamber (2); A through hole (4), wherein the through hole (4) connects the medium cavity (2) and the transmission cavity (3); and a motor cavity (5), wherein the motor cavity (5) is arranged on one side of the medium cavity (2) and is connected to the transmission cavity (3), and the motor cavity (5) is arranged to sink toward the bottom of the medium cavity (2).

2. A compact electrically controlled ball valve according to claim 1, characterized in that: The invention also includes a valve cover (6) connected to the valve body (1); the transmission chamber (3) is located between the valve body (1) and the valve cover (6); a first mounting plate (7) is arranged between the transmission chamber (3) and the motor chamber (5); the first mounting plate (7) is provided with a plurality of connecting columns (71) facing the valve cover (6); a second mounting plate (8) is arranged on the connecting columns (71); the first mounting plate (7), the plurality of connecting columns (71) and the second mounting plate (8) form a mounting frame.

3. A compact electrically controlled ball valve according to claim 2, characterized in that: The invention also comprises a motor (9), a motor frame (10) being arranged on the side of the first mounting plate (7) facing the motor cavity (5), the motor (9) being arranged on the motor frame (10), and a gap (11) being left between the motor (9) and the inner wall of the motor cavity (5).

4. A compact electrically controlled ball valve according to claim 3, characterized in that: Also includes: A driving gear (12), wherein the driving gear (12) is connected to the motor (9); A gear plate (13), the gear plate (13) being rotatably disposed between the motor frame (10) and the first mounting plate (7), comprising an inner tooth portion (131) meshing with the driving gear (12) and a gear portion (132) disposed toward the transmission chamber (3); A first gear shaft (14), the first gear shaft (14) comprising a first large gear portion (141) and a first small gear portion (142), wherein one end of the first small gear portion (142) is arranged to pass through the first mounting plate (7); A second gear shaft (15), the second gear shaft (15) is rotatably arranged between the motor frame (10) and the first mounting plate (7), and comprises a second large gear portion (151) and a second small gear portion (152), the second large gear portion (151) is meshed with the gear portion (132), and the second small gear portion (152) is meshed with the first large gear portion (141).

5. A compact electrically controlled ball valve according to claim 4, characterized in that: Also includes: A sphere (16), wherein the sphere (16) is rotatably disposed in the medium cavity (2); A valve seat (17), wherein the valve seat (17) is arranged on a side of the valve body (1) close to the medium outlet; a third gear shaft (18), the third gear shaft (18) being meshed with the first pinion portion (142); a fourth gear shaft (19), the fourth gear shaft (19) comprising a full tooth portion (191) and a half tooth portion (192) arranged above and below, the full tooth portion (191) meshing with the third gear shaft (18); A first valve stem (20), wherein a first gear (21) that rotates synchronously is disposed on the first valve stem (20), the first gear (21) is meshed with the full gear portion (191), and the first valve stem (20) is connected to the ball (16); A second valve stem (22), wherein a second gear (23) that rotates synchronously is disposed on the second valve stem (22), a limited position tooth (231) is disposed on the second gear (23), the second gear (23) cooperates with the half-tooth portion (192), the second valve stem (22) is connected to the ball (16), and is sleeved outside the first valve stem (20).

6. A compact electrically controlled ball valve according to claim 5, characterized in that: The third gear shaft (18), the third gear shaft (18), the first gear (21) and the second gear (23) are all arranged between the first mounting plate (7) and the second mounting plate (8).

7. A compact electrically controlled ball valve according to claim 5, characterized in that: The sphere (16) is provided with a first connecting groove (161), and a connecting rod (2001) is eccentrically provided on one end of the first valve stem (20) facing the sphere (16), and the connecting rod (2001) is inserted into the first connecting groove (161).

8. A compact electrically controlled ball valve according to claim 5 or 7, characterized in that: The sphere (16) is provided with a connecting protrusion (162); the second valve stem (22) is provided with a second connecting groove (221) facing the sphere (16); the connecting protrusion (162) extends into the second connecting groove (221); a first limiting protrusion (222) is provided on the circumferential outer wall of the second connecting groove (221); a first limiting protrusion (72) is provided on the first mounting plate (7) facing the sphere (16); the first limiting protrusion (72) is located on the rotation path of the first limiting protrusion (222).

9. A compact electrically controlled ball valve according to claim 5, characterized in that: The inner bottom wall of the medium cavity (2) is provided with a positioning protrusion (201), and the sphere (16) is provided with a positioning groove (163) matched with the positioning protrusion (201).

10. A compact electrically controlled ball valve according to claim 8, characterized in that: The fourth gear shaft (19) is provided with a second limiting protrusion (193) near the first mounting plate (7), the first mounting plate (7) is provided with a second limiting protrusion (701), and the second limiting protrusion (701) is located on the rotation path of the second limiting protrusion (193).

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