CN212107133U

CN212107133U - Float valve limit structure for water tank

Info

Publication number: CN212107133U
Application number: CN202020702741.5U
Authority: CN
Inventors: 皮体斌
Original assignee: Sichuan Aimbon Mold Co ltd
Current assignee: Zhongbang (Chengdu) Electric Appliance Co.,Ltd.
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-12-08
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a can be used to floating valve limit structure of water tank, including the evaporation tank, the evaporation tank bottom is equipped with the through-hole, and be equipped with the keyway in the through-hole below, be equipped with the knock pin in the keyway, the one end of knock pin is corresponding with the through-hole, be used for passing the float end of through-hole to the floating valve by the one end of knock pin and form spacingly, be equipped with seal structure between keyway and the through-hole, the keyway below is equipped with limit structure, be used for by the rising or the decline of limit structure regulation knock pin, install reset spring in the keyway, it is great with the current solenoid valve structure that is used for in the water tank of hope of solution in the use noise, need switch on always in.

Description

Float valve limit structure for water tank

Technical Field

The utility model relates to a limit valve, more specifically the utility model discloses mainly relate to a floating valve limit structure that can be used to the water tank.

Background

Along with the improvement of living standard of people, people pay more and more attention to health, and among the factors influencing the health of people, air quality is one of the important factors, so people develop various products to improve the quality of air in people's life, wherein, humidifiers and evaporators are the familiar products.

The existing humidifier needs to continuously electrify a floating valve limiting mechanism in a control water tank while controlling evaporation capacity, for example, an electromagnetic valve needs to be electrified directly when the electromagnetic valve needs to be kept in a state, although the evaporation and humidification capacity can be controlled and adjusted, the structure has higher energy consumption, and the electromagnetic valve is easy to generate noise in the use process, so that the phenomenon is improved by the floating valve limiting structure capable of being used for the water tank.

SUMMERY OF THE UTILITY MODEL

One of the purposes of the utility model is to solve the above-mentioned not enough, provide a floating valve limit structure that can be used to the water tank to it is great to expect to solve current solenoid valve structure that is used for in the water tank noise in the use, need switch on always in the use, the big scheduling problem of power consumption.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides a can be used to floating valve limit structure of water tank, including the evaporation tank, the evaporation tank bottom is equipped with the through-hole, and the through-hole below is equipped with the keyway, be equipped with the knock pin in the keyway, the one end of knock pin is corresponding with the through-hole for it is spacing to pass the float end formation of through-hole to the floating valve by the one end of knock pin, be equipped with seal structure between keyway and the through-hole, the keyway below is equipped with limit structure, is used for the rising or the decline of knock pin is adjusted by limit structure, install reset spring in the keyway.

Preferably, the further technical scheme is as follows: the limiting structure comprises a limiting table, the upper portion of the limiting table is provided with an inclined plane, the other end of the ejector pin abuts against the upper portion of the limiting table, and the limiting table is in power connection with the output end of the motor and is used for being driven by the motor to rotate.

The further technical scheme is as follows: the limiting structure comprises a cam, the other end of the ejector pin is abutted to the edge of the cam, and the cam is in power connection with the output end of the motor and is used for being driven by the motor to rotate.

The further technical scheme is as follows: the motor is a stepping motor, and the stepping motor is electrically connected to the main control panel.

The further technical scheme is as follows: the fixing piece is arranged on the outer wall of the key groove, and the bottom of the ejector pin penetrates through the fixing piece and forms limiting with the limiting structure.

Preferably, the further technical scheme is as follows: the sealing structure is characterized in that the sealing structure comprises an upper sealing ring and a lower sealing ring, the upper sealing ring is located at the top of the key groove and used for forming sealing with the through hole, the lower sealing ring is located at the bottom of the key groove, and the upper sealing ring and the lower sealing ring are respectively sleeved on the top pin.

The further technical scheme is as follows: the reset spring sleeve is arranged on the ejector pin, one end of the reset spring is abutted to the upper sealing ring, and the other end of the reset spring is fixed to the lower portion of the ejector pin.

Compared with the prior art, one of the beneficial effects of the utility model is that: the bottom of the evaporation tank is provided with a key groove, a top pin is movably arranged in the key groove, the top end of the top pin penetrates through a through hole arranged at the bottom of the evaporation tank and corresponds to the floating valve, the bottom end of the top pin is contacted with a limiting table or a cam arranged below the key groove, the limiting table or the cam is in power connection with the output end of a stepping motor and is used for driving the limiting table or the cam to rotate through the stepping motor, the limiting table or the cam drives the top pin to ascend or descend in the rotating process, the top pin controls the ascending or descending of the limiting floating valve and is used for adjusting the liquid level in the evaporation tank, and the top pin is reset through a reset spring sleeved on the top pin; the utility model provides a can be used to float valve limit structure of water tank, operating time is short, and the noise in the working process is little, need not to supply power always, greatly reduced power consumption.

Drawings

Fig. 1 is a schematic structural diagram illustrating a cross-sectional view of a float valve limiting structure for a water tank according to an embodiment of the present invention.

Fig. 2 is an enlarged schematic structural view illustrating a top view of a position-limiting table according to another embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view illustrating another embodiment of the present invention.

In the figure, 1 is an evaporation tank, 2 is a float end, 3 is a key groove, 4 is a knock pin, 5 is a limit table, 6 is a return spring, 7 is an upper sealing ring, 8 is a lower sealing ring, 9 is a fixing piece, 10 is a float valve, and 11 is a cam.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1, an embodiment of the present invention is a floating valve position limiting structure for a water tank, including an evaporation tank 1, a through hole is provided at the bottom of the evaporation tank 1, the through hole is located below the float end 2, a key groove 3 is provided below the through hole, the key groove 3 is a hollow cylindrical structure, a knock pin 4 is provided in the key groove 3, the knock pin 4 and the key groove 3 are spaced apart from each other, one end of the knock pin 4 corresponds to the through hole for limiting the float end 2 of the floating valve 10 by passing one end of the knock pin 4 through the through hole, a sealing structure is provided between the key groove 3 and the through hole for preventing water in the evaporation tank 1 from flowing out of the through hole during the lifting process of the knock pin 4 through the sealing structure, the sealing performance at the through hole is improved, a position limiting structure is installed below the key groove 3 for adjusting the lifting or lowering of the knock pin 4 through the position limiting structure, a return spring 6 is installed in the key groove 3, and the knock pin 4 is returned by the elastic force of the return spring 6.

Referring to fig. 1 and 2, in another embodiment of the present invention, the limiting structure includes a limiting table 5, the upper portion of the limiting table 5 has an inclined plane, the inclined plane is an annular inclined plane, the other end of the knock pin 4 abuts on the upper portion of the limiting table 5, and the limiting table 5 is connected to the output end of the motor for driving the limiting table 5 to rotate by the motor.

Referring to fig. 3, in another embodiment of the present invention, the limiting structure includes a cam 11, an axis of the cam 11 is located on an extension line of the knock pin 4, and the other end of the knock pin 4 abuts against an edge of the cam 11, the cam 11 is in power connection with an output end of a motor, the output end of the motor is in power connection with a wheel shaft of the cam 11, and the wheel shaft is used for driving the cam 11 to rotate by the motor, and a return spring 18 is installed in the key slot 15, and is used for returning the knock pin 4 through an elastic force of the return spring 18.

Referring to fig. 1, in another embodiment of the present invention, the sealing structure is a sealing ring and a lower sealing ring 8, the upper sealing ring 7 and the lower sealing ring 8 are made of rubber, the upper sealing ring 7 and the lower sealing ring 8 are respectively sleeved on the ejector pin 4, the upper sealing ring 7 is positioned above the key groove 3 and forms sealing with the through hole, for preventing the water in the evaporation tank 1 from flowing out of the through hole in the lifting process of the ejector pin 4 and improving the sealing performance of the through hole, the upper sealing ring 7 can be fixedly arranged below the through hole in a strong bonding mode, the lower sealing ring 8 can be fixedly arranged below the key groove 3 in a strong bonding mode, and is abutted against a fixing piece 9 fixedly arranged on the outer wall of the key groove 3, and the bottom of the ejector pin 4 penetrates through the fixing piece 9 and is used for forming limit with the limit structure.

Referring to fig. 1, in another embodiment of the present invention, the return spring 6 is sleeved on the knock pin 4 and located between the upper seal ring 7 and the lower seal ring 8, one end of the return spring 6 is abutted against the bottom of the upper seal ring 7, and the other end of the return spring 6 is fixed at the lower portion of the knock pin 4 for returning the knock pin 4 by the elastic force of the return spring 6.

Referring to fig. 1 and 2, in another embodiment of the present invention, the limiting table 5 is circular, the bottom of the limiting table 5 is in power connection with an output shaft of a motor, the output end of the motor is fixedly arranged on a central axis at the bottom of the limiting table 5, the device is used for driving a limiting table 5 to rotate through a motor, the top of the limiting table 5 is an oval inclined plane, the top view of the top of the limiting table 5 is circular, the limiting table 5 is perpendicular to the horizontal plane in the rotating process, and rotates by taking the middle point of the elliptic inclined plane as an axis, a gap is formed between the axis and the ejector pin 4, and the vertical distance from the axis to the top pin 4 is less than the short focus chord of the ellipse, and the vertical distance between the horizontal plane corresponding to the highest point and the horizontal plane corresponding to the lowest point of the elliptic inclined plane on the limiting table 5 is equal to the longest ascending distance of the float end 2.

Referring to fig. 1, in another embodiment of the present invention, the motor is a stepping motor, the stepping motor is electrically connected to a main control board, the main control board collects signals of a temperature sensor and a humidity sensor, and determines the received signals, the stepping motor drives the limit table 5 to rotate, when the return spring 6 is in an original length state, the bottom end of the top pin 4 contacts with the lowest point of the elliptical inclined plane on the limit table 5, a gap is formed between the top end of the top pin 4 and the float end 2, when the stepping motor drives the limit table 5 to rotate, the top pin 4 gradually rises, the return spring 6 is gradually compressed, the top end of the top pin 4 contacts with the float end 2 and lifts the float end 2, when the limit table 5 rotates 180 °, the bottom end of the top pin 4 contacts with the highest point on the limit table 5, and the return spring 6 is in a maximum compression state, at the moment, the floater end 2 rises to the maximum height, the liquid level in the evaporation tank 1 is adjusted through the floater end 2, meanwhile, a power supply connected to the stepping motor is disconnected, the limiting table 5 stops rotating and is in the current state, the floater end 2 is enabled to keep the current position and is used for controlling the liquid level in the evaporation tank 1, the power consumption is greatly reduced, and meanwhile, the noise generated in continuous work is reduced.

When the stepping motor drives the limiting table 5 to rotate again, the ejector pin 4 gradually descends along with the reduction of the height on the limiting table 5 under the elastic action of the reset spring 6, meanwhile, the top end of the ejector pin 4 is far away from the float end 2, the float end 2 gradually descends, when the limiting table 5 rotates for 180 degrees, the bottom end of the ejector pin 4 corresponds to the lowest point on the limiting table 5 at the moment, the reset spring 6 recovers the original length under the elastic action of the reset spring 6, meanwhile, the power supply connected to the stepping motor is disconnected, the limiting table 5 stops rotating and is in the current state, the float end 2 is enabled to keep the current position, the liquid level in the evaporation tank 1 is adjusted through the float end 2, the electric energy consumption is greatly reduced, and meanwhile, the noise generated in continuous work is reduced.

Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. The utility model provides a can be used to floating valve limit structure of water tank, includes evaporation tank (1), its characterized in that: evaporation tank (1) bottom is equipped with the through-hole, and the through-hole below is equipped with keyway (3), be equipped with knock pin (4) in keyway (3), the one end of knock pin (4) is corresponding with the through-hole for it is spacing to float end (2) formation of float valve (10) to pass the through-hole by the one end of knock pin (4), be equipped with seal structure between keyway (3) and the through-hole, keyway (3) below is equipped with limit structure, is used for the rising or the decline of knock pin (4) are adjusted by limit structure, install reset spring (6) in keyway (3).

2. The float valve position limiting structure for water tank of claim 1, wherein: the limiting structure comprises a limiting table (5), the upper portion of the limiting table (5) is provided with an inclined plane, the other end of the ejector pin (4) is abutted to the upper portion of the limiting table (5), and the limiting table (5) is in power connection with the output end of the motor and is used for being driven by the motor to rotate the limiting table (5).

3. The float valve position limiting structure for water tank of claim 1, wherein: the limiting structure comprises a cam (11), the other end of the ejector pin (4) is abutted to the edge of the cam (11), and the cam (11) is in power connection with the output end of the motor and is used for being driven by the motor to rotate the cam (11).

4. The float valve position limiting structure for water tank according to claim 2 or 3, wherein: the motor is a stepping motor, and the stepping motor is electrically connected to the main control panel.

5. The float valve position limiting structure for water tank of claim 1, wherein: the outer wall of the key groove (3) is provided with a fixing piece (9), and the bottom of the ejector pin (4) penetrates through the fixing piece (9) and forms limiting with the limiting structure.

6. The float valve position limiting structure for water tank of claim 1, wherein: the sealing structure is characterized in that the sealing structure is provided with an upper sealing ring (7) and a lower sealing ring (8), the upper sealing ring (7) is located at the top of the key groove (3) and used for forming sealing with the through hole, the lower sealing ring (8) is located at the bottom of the key groove (3), and the upper sealing ring (7) and the lower sealing ring (8) are respectively sleeved on the ejector pin (4).

7. The float valve position limiting structure for water tank of claim 6, wherein: reset spring (6) cover is established on knock pin (4), reset spring (6) one end is contradicted with last sealing washer (7), reset spring (6) other end is fixed the lower part of knock pin (4).