Flow valve for controlling fluid flow

Abstract

The invention provides a flow valve for controlling fluid flow, and relates to the technical field of transmission devices. A bearing seat assembly; a nut assembly; a torque limiter assembly; a second microswitch assembly; a position display component; a valve body assembly; the valve element assembly is used for being driven by the nut assembly to move so as to adjust the flow of fluid passing through the fluid outlet of the valve body assembly. According to the flow valve for controlling the fluid flow, torque is controlled through the torque limiter, starting and stopping of the valve are achieved through the lead screw, the device is simple in mechanical structure, and opening or closing of the valve can be controlled at any time. The flow device adopts a stepping motor, a torque limiter, a microswitch and other devices, and is a product capable of accurately controlling flow and torque.

Description

Technical Field

[0001] The invention relates to the technical field of transmission devices, and in particular provides a flow valve for controlling fluid flow. Background Art

[0002] In daily life, transmission devices for controlling flow can be found everywhere in mechanical structures. Existing transmission devices do not have the function of limiting torque due to structural limitations and cost issues, so there is great inconvenience when the torque needs to be changed. Summary of the invention

[0003] The purpose of the present application is to provide a flow control device having the function of controlling the pressure and flow of a main pipe.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a flow valve for controlling fluid flow, the flow valve comprising: a first micro-switch assembly, comprising two first micro-switch assemblies of the same structure, for respectively feeding back position signals when the flow valve is in an open position and a closed position; a bearing seat assembly, comprising a motor for providing power and transmitting the power provided by the motor; a nut assembly, for receiving the power transmitted by the bearing seat assembly and converting the rotational motion output by the bearing assembly into a linear motion; a torque limiter assembly, for transmitting the power of the motor and limiting the linear force of the nut assembly so that the entire flow valve is not overloaded; a second micro-switch assembly, for detecting the working state of the torque limiter assembly; a position display assembly, for displaying the position signal fed back by the first micro-switch assembly; a valve body assembly, for fluid delivery; a valve core assembly, for being driven by the nut assembly to move so as to adjust the fluid flow rate through the fluid outlet of the valve body assembly.

[0005] The flow valve for controlling fluid flow provided by the present invention also has the following technical features: the first microswitch assembly includes a microswitch seat and a first microswitch mounted on the microswitch seat by a cross-slot pan head screw; the first microswitch generates a position signal by being touched by the nut assembly; the microswitch seat is a plate-type structure, one end of which is provided with a first waist-shaped hole for adjusting the position of the first microswitch; the first microswitch is mounted on the other end.

[0006] The flow valve for controlling fluid flow provided by the present invention also has the following technical features: the bearing seat assembly includes an angular contact bearing, a bearing seat for mounting the angular contact bearing, a stepper motor for providing power, a motor gear mounted on the stepper motor, a second hexagonal cylindrical head nut for connecting the stepper motor and the bearing seat, and a trapezoidal lead screw shaft cooperating with the nut assembly; the motor gear is fixed to the stepper motor by a slotted flat-end set screw and a flat key; and the angular contact bearing is fixed to the bearing seat by a bearing locking nut and a locking nut.

[0007] The flow valve for controlling fluid flow provided by the present invention also has such a technical feature that the nut assembly includes a nut whose two ends are respectively connected to the bearing seat assembly and the valve core assembly, and a protrusion fixed on the nut for limiting the rotational position.

[0008] The flow valve for controlling fluid flow provided by the present invention also has the following technical features: the torque limiter assembly includes a torque limiter in contact with the bearing seat assembly, a torque limiter gear meshing with the motor gear of the motor, a one-way bearing installed on the torque limiter, a common flat key for longitudinally limiting the one-way bearing, and a pressure plate for fixing the one-way bearing; the torque limiter, the torque limiter gear, the one-way bearing and the pressure plate are connected by a first hexagon socket head screw.

[0009] The flow valve for controlling fluid flow provided by the present invention also has the following technical features: the second microswitch assembly includes a microswitch bracket and a second microswitch mounted on the microswitch bracket by a cross-slot pan head screw of the bracket; the second microswitch generates a position signal by being touched by the nut assembly; the microswitch bracket is an L-shaped structure; a second waist-shaped hole for adjusting the position of the second microswitch is provided on the long side of the L-shaped structure; and the second microswitch is mounted on the short side of the L-shaped structure.

[0010] The flow valve for controlling fluid flow provided by the present invention also has such a technical feature that the position display component includes a top cover engraved with a rotational position and two indicator lights fixed on the top cover for displaying the feedback position of the first micro switch component.

[0011] The flow valve for controlling fluid flow provided by the present invention also has such a technical feature that the valve body assembly is provided with a fluid inlet and a fluid outlet, and the fluid outlet is arranged corresponding to the valve core assembly, so that the valve core assembly can completely avoid the fluid outlet or completely block the fluid outlet during movement.

[0012] The flow valve for controlling fluid flow provided by the present invention also has the following technical features: the valve core assembly includes a valve core that cooperates with the valve body assembly, a valve stem that is threadedly connected to the nut assembly, a bellows sleeved on the valve stem, and a connecting flange for connecting the valve stem to the valve body assembly; the valve core is connected to the valve stem through a valve disc, and the connecting flange and the valve body assembly are sealed by a sealing gasket.

[0013] The flow valve for controlling fluid flow provided by the present invention also has the following technical features: the flow valve also includes a shell for fixing the flow valve and a socket for providing working power to the flow valve.

[0014] Beneficial Effects

[0015] The flow valve for controlling fluid flow proposed by the present invention uses a torque limiter to control torque, and then uses a lead screw to start and stop the valve. The device has a simple mechanical structure, and the opening or closing of the valve can be controlled at any time. The flow device uses stepper motors, torque limiters, micro switches and other devices, and can accurately control flow and torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A top view of a flow valve for controlling fluid flow provided by the present invention;

[0018] Figure 2 A cross-sectional view of a flow valve for controlling fluid flow provided by the present invention;

[0019] Figure 3 A schematic structural diagram of a first micro switch assembly provided in an embodiment of the present invention;

[0020] Figure 4 A schematic diagram of the structure of a second micro switch assembly provided in an embodiment of the present invention;

[0021] Figure 5 A schematic diagram of the structure of a torque limiter assembly provided by an embodiment of the present invention;

[0022] Figure 6 A schematic structural diagram of a bearing seat assembly provided in an embodiment of the present invention;

[0023] Figure 7 A schematic diagram of the structure of a position display component provided by an embodiment of the present invention;

[0024] Figure 8 A schematic diagram of the structure of a nut assembly provided in an embodiment of the present invention;

[0025] Fig. 9 A schematic diagram of the structure of a valve core assembly provided by an embodiment of the present invention;

[0026] Fig.10 A schematic diagram of the structure of a valve body assembly provided in an embodiment of the present invention.

[0027] Wherein: 1: first micro switch assembly; 11: first micro switch; 12: cross slot pan head screw; 13: micro switch seat; 2: second micro switch assembly; 21: bracket cross slot pan head screw; 22: micro switch bracket; 23: second micro switch; 3: torque limiter assembly; 31: torque limiter; 32: first hexagon socket head screw; 33: torque limiter gear; 34: ordinary flat key; 35: one-way bearing; 36: pressure plate; 4: bearing seat assembly; 401: trapezoidal screw shaft; 402: bearing locking nut; 40 3: Locking nut; 404:; 405: Set screw; 406: Flat key; 407: Motor gear; 408: Second hexagon socket head nut; 409: Bearing seat; 410: Motor; 411: Second angular contact bearing; 5: Position display assembly; 51: Top cover; 52: First indicator light; 53: Second indicator light; 6: Nut assembly; 61: Nut; 62: Bump; 7: Valve core assembly; 71: Valve core; 72: Valve stem; 73: Bellows; 74: Connecting flange; 75: Valve disc; 76: Sealing gasket; 8: Valve body assembly. DETAILED DESCRIPTION

[0028] The present application is further described in detail below in conjunction with the accompanying drawings and examples, but it should be noted that these implementation methods are not limitations of the present application, and equivalent changes or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these implementation methods are all within the scope of protection of the present application.

[0029] In the description of the embodiments of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "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, and are only for the convenience of describing the creation of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the creation of the present application.

[0030] In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0031] The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; 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 the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention of this application can be understood by specific circumstances.

[0032] like Figure 1-10 As shown, an embodiment of the present application provides a flow valve for controlling fluid flow, the flow valve comprising:

[0033] A first micro switch assembly 1, the number of the first micro switch assemblies 1 is 2, and the two first micro switch assemblies 1 are respectively used to feedback position signals when the flow valve is in an open position and a closed position;

[0034] The bearing seat assembly 4 includes a motor 410 for providing power and transmitting the power provided by the motor 410;

[0035] The nut assembly 6 is used to receive the power transmitted by the bearing seat assembly 4 and convert the rotational motion output by the bearing assembly 4 into linear motion;

[0036] The torque limiter assembly 3 is used to transmit the power of the motor 410 and limit the linear force of the nut assembly 6 so that the entire flow valve is not overloaded;

[0037] The second micro switch assembly 2 is used to detect the working state of the torque limiter assembly 3;

[0038] A position display component 5, used for displaying the position signal fed back by the first micro switch component 1;

[0039] A valve body assembly 8, used for fluid delivery;

[0040] The valve core assembly 7 is used to be driven by the nut assembly 6 to move so as to adjust the fluid flow rate through the fluid outlet of the valve body assembly 8 .

[0041] In some embodiments, the first micro switch assembly 1 includes a micro switch seat 13 and a first micro switch 11 mounted on the micro switch seat 13 by a cross slot pan head screw 12, the first micro switch 11 generates a position signal by being touched by the nut assembly 6, the micro switch seat 13 is a plate-type structure, one end of which is provided with a first waist-shaped hole for adjusting the position of the first micro switch 11, and the first micro switch 11 is installed at the other end.

[0042] In some embodiments, the bearing seat assembly 4 includes an angular contact bearing 411, a bearing seat 409 for mounting the angular contact bearing 411, a motor 410 for providing power, a motor gear 407 mounted on the motor 410, a second hexagon socket head nut 408 for connecting the motor 410 and the bearing seat 409, and a trapezoidal screw shaft 401 cooperating with the nut assembly 6, wherein the motor 410 is a stepping motor.

[0043] The motor gear 407 is fixed to the motor 410 by means of a slotted flat-end set screw 405 and a flat key 406.

[0044] The angular contact bearing 411 is fixed on the bearing seat 409 via a bearing locking nut 402 and a locking nut 403 .

[0045] In some embodiments, the nut assembly 6 includes a nut 61 whose two ends are respectively connected to the bearing seat assembly 4 and the valve core assembly 7, and a protrusion 62 fixed on the nut 61 for limiting the rotational position.

[0046] In some embodiments, the torque limiter assembly 3 includes a torque limiter 31 in contact with the bearing seat assembly 4, a torque limiter gear 33 meshing with the motor gear of the motor 410, a one-way bearing 35 mounted on the torque limiter 31, a common flat key 34 for longitudinally limiting the one-way bearing 35, and a pressure plate 36 for fixing the one-way bearing 35.

[0047] The torque limiter 31 , the torque limiter gear 33 , the one-way bearing 35 , and the pressure plate 36 are connected by a first hexagon socket head screw 32 .

[0048] In some embodiments, the second micro switch assembly 2 includes a micro switch bracket 22 and a second micro switch 23 mounted on the micro switch bracket 22 by a bracket cross slot pan head screw 21.

[0049] The second micro switch 23 generates a position signal by being touched by the nut assembly 6. The micro switch bracket 22 is an L-shaped structure. A second waist-shaped hole for adjusting the position of the second micro switch 23 is provided on the long side of the L-shaped structure. The second micro switch 23 is installed on the short side of the L-shaped structure.

[0050] In some embodiments, the position display assembly 5 includes a top cover 51 engraved with a rotational position and two indicator lights fixed on the top cover 51 for displaying the feedback position of the first micro switch assembly 1. The two indicator lights include a first indicator light 51 and a second indicator light 52, the first indicator light 51 is a green light, and the second indicator light 52 is a red light. When the first micro switch assembly is in the open position, the first indicator light 51 is on; when the first micro switch assembly is in the closed position, the second indicator light 52 is on.

[0051] In some embodiments, the valve body assembly 8 is provided with a fluid inlet and a fluid outlet, and the fluid outlet is arranged corresponding to the valve core assembly 7, so that the valve core assembly 7 can completely avoid the fluid outlet or completely block the fluid outlet during movement.

[0052] In some embodiments, the valve core assembly 7 includes a valve core 71 that cooperates with the valve body assembly 8, a valve stem 72 that is threadedly connected to the nut assembly 6, a bellows 73 sleeved on the valve stem 72, and a connecting flange 74 for connecting the valve stem 72 to the valve body assembly 8. The valve core 71 is connected to the valve stem 72 through a valve flap 75, and the connecting flange 74 and the valve body assembly 8 are sealed by a sealing gasket 76.

[0053] In some embodiments, the flow valve further includes a housing for fixing the flow valve and a socket for providing working power to the flow valve.

[0054] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. A flow valve for controlling fluid flow, characterized in that: The flow valve comprises: A first micro switch assembly (1), the number of the first micro switch assemblies (1) being two, and the two first micro switch assemblies (1) being used to feed back position signals when the flow valve is in an open position and a closed position respectively; A bearing seat assembly (4) includes a motor (410) for providing power, and is used to transmit the power provided by the motor (410); A nut assembly (6) is used to receive power transmitted by the bearing seat assembly (4) and convert the rotational motion output by the bearing seat assembly (4) into linear motion; A torque limiter assembly (3) for transmitting the power of the motor (410) and limiting the linear force of the nut assembly (6) so as to prevent the entire flow valve from being overloaded; A second micro switch assembly (2) is used to detect the working state of the torque limiter assembly (3); A position display component (5), used for displaying the position signal fed back by the first micro switch component (1); A valve body assembly (8) for fluid delivery; The valve core assembly (7) is used to be driven by the nut assembly (6) to move so as to adjust the fluid flow rate through the fluid outlet of the valve body assembly (8).

2. The flow valve for controlling fluid flow according to claim 1, characterized in that: The first micro switch assembly (1) comprises a micro switch seat (13) and a first micro switch (11) mounted on the micro switch seat (13) via a cross-slot pan head screw (12). The first micro switch (11) generates a position signal by being touched by the nut assembly (6). The micro switch seat (13) is a plate-shaped structure, one end of which is provided with a first waist-shaped hole for adjusting the position of the first micro switch (11), and the first micro switch (11) is installed at the other end.

3. The flow valve for regulating fluid flow according to claim 1, characterized in that: The bearing seat assembly (4) comprises an angular contact bearing (411), a bearing seat (409) for mounting the angular contact bearing (411), a stepping motor (410) for providing power, a motor gear (407) mounted on the stepping motor (410), a second hexagon socket head nut (408) for connecting the stepping motor (410) and the bearing seat (409), and a trapezoidal screw shaft (401) matched with the nut assembly (6). The motor gear (407) is fixed to the stepper motor (410) by means of a slotted flat-end set screw (405) and a flat key (407). The angular contact bearing (411) is fixed on the bearing seat (409) via a bearing locking nut (402) and a locking nut (403).

4. The flow valve for regulating fluid flow according to claim 1, characterized in that: The nut assembly (6) comprises a nut (61) whose two ends are respectively connected to the bearing seat assembly (4) and the valve core assembly (7), and a protrusion (62) fixed on the nut (61) for limiting the rotational position.

5. The flow valve for regulating fluid flow according to claim 1, characterized in that: The torque limiter assembly (3) comprises a torque limiter (31) in contact with the bearing seat assembly (4), a torque limiter gear (33) meshing with the motor gear of the motor (410), a one-way bearing (35) mounted on the torque limiter (31), a common flat key (34) for longitudinally limiting the one-way bearing (35), and a pressure plate (36) for fixing the one-way bearing (35). The torque limiter (31), the torque limiter gear (33), the one-way bearing (35) and the pressure plate (36) are connected by a first hexagon socket head screw (32).

6. The flow valve for regulating fluid flow according to claim 1, characterized in that: The second micro switch assembly (2) comprises a micro switch bracket (22) and a second micro switch (23) mounted on the micro switch bracket (22) via a bracket cross slot pan head screw (21). The second micro switch (23) generates a position signal by being touched by the nut assembly (6). The micro switch bracket (22) is an L-shaped structure, a second waist-shaped hole for adjusting the position of the second micro switch (23) is provided on the long side of the L-shaped structure, and the second micro switch (23) is installed on the short side of the L-shaped structure.

7. The flow valve for regulating fluid flow according to claim 1, characterized in that: The position display component (5) comprises a top cover (51) engraved with a rotational position and two indicator lights fixed on the top cover (51) for displaying the position fed back by the first micro switch component (1).

8. The flow valve for regulating fluid flow according to claim 1, characterized in that: The valve body assembly (8) is provided with a fluid inlet and a fluid outlet, and the fluid outlet is arranged corresponding to the valve core assembly (7), so that the valve core assembly (7) can completely avoid the fluid outlet or completely block the fluid outlet during movement.

9. The flow valve for regulating fluid flow according to claim 1, characterized in that: The valve core assembly (7) comprises a valve core (71) matched with the valve body assembly (8), a valve stem (72) connected to the nut assembly (6) by threading, a bellows (73) sleeved on the valve stem (72), and a connecting flange (74) for connecting the valve stem (72) to the valve body assembly (8). The valve core (71) is connected to the valve stem (72) via a valve flap (75), and the connecting flange (74) and the valve body assembly (8) are sealed via a sealing gasket (76).

10. The flow valve for regulating fluid flow according to claim 1, characterized in that: The flow valve also includes a shell for fixing the flow valve and a socket for providing working power to the flow valve.

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