CN219198300U - Liquid level control switch and liquid buffer device - Google Patents

Abstract

The utility model relates to a liquid level control switch and a liquid caching device, comprising a switch seat, a liquid level control valve and a liquid caching device, wherein the switch seat is provided with an installation cavity, and a water inlet and a water outlet which are respectively communicated with the installation cavity; the switch core body is movably arranged in the mounting cavity, and a sealing piece is arranged at one end of the switch core body, which faces the water inlet hole; one end of the floating component is rotatably arranged on the switch seat and is used for floating on the liquid level in the liquid caching device, and when the liquid level rises to a preset height, the floating component pushes the switch core body to move towards the water inlet hole, and the sealing element seals the water inlet hole; when the liquid level drops below the preset height, the floating assembly is separated from the contact switch core body, and the switch core body retreats to enable the sealing piece to open the water inlet hole, and the water inlet hole is communicated with the water passing hole. The liquid level control switch of the scheme realizes the purpose of highly accurately and reliably controlling the liquid level in the liquid caching device, so that the raw water which is not completely evaporated can be smoothly returned for reuse, and waste caused by the ejection of the raw water during exhaust is avoided.

Description

Liquid level control switch and liquid buffer device

Technical Field

The utility model relates to the technical field of medicine water production, in particular to a liquid level control switch and a liquid caching device.

Background

At present, in medicine water production field, carry out injection water disinfection equipment's pure vapour production in-process, can generally install a liquid buffer device at the operation front end of equipment, the raw materials water that participates in the water production can get into liquid buffer device so as to participate in processing at any time, and the raw materials water that does not evaporate completely also can flow back to in the liquid buffer device simultaneously and realize retrieving the reutilization.

The liquid caching device is internally provided with a water level control switch for controlling the liquid level in the liquid caching device so as to prevent the excessive liquid level caused by the excessive raw material water flowing into the liquid caching device, so that the raw material water which is not completely evaporated cannot flow back into the liquid caching device, and the waste is caused by the ejection of the raw material water during the exhaust. However, the existing water level control switch has poor adaptability to the water level in the liquid caching device, and when the water level in the liquid caching device is higher, the water inlet cannot be effectively plugged, so that the water level in the liquid caching device is continuously increased, and the problems are caused.

Disclosure of Invention

Based on this, it is necessary to provide a liquid level control switch and a liquid buffer device, which aim at solving the problem that the prior art can not effectively block the water inlet, and the raw material water can not be sprayed out and wasted when the raw material water which is not completely evaporated can not flow back and exhaust.

In one aspect, the present application provides a liquid level control switch, comprising:

the switch seat is provided with an installation cavity, and a water inlet hole and a water passing hole which are respectively communicated with the installation cavity;

the switch core body is movably arranged in the mounting cavity, and a sealing piece is arranged at one end of the switch core body, which faces the water inlet hole; and

the floating assembly is rotatably arranged on the switch seat, is used for floating on the liquid level in the liquid caching device, pushes the switch core body to move towards the water inlet hole when the liquid level rises to a preset height, and seals the water inlet hole by the sealing piece; when the liquid level drops below a preset height, the floating assembly is separated from contact with the switch core body, the switch core body retreats to enable the sealing piece to open the water inlet hole, and the water inlet hole is communicated with the water passing hole.

The liquid level control switch is arranged in the liquid caching device, when the liquid level value in the liquid caching device is lower than a preset height or raw water does not exist, the floating assembly is positioned at a low position in the liquid caching device, and does not generate pushing force on the switch core body at the moment, so that the raw water flowing in from the water inlet hole can push the switch core body to retreat to separate the sealing element from the water inlet hole, the water inlet hole is communicated with the water through hole, the raw water can normally flow through the water through hole to be injected into the liquid caching device, and the raw water which is not evaporated is enabled to flow back into the liquid caching device; after a period of time, raw material water in the liquid caching device is continuously increased, when the liquid level value rises to a preset height, the floating assembly synchronously rises along with the rise of the liquid level, the floating assembly can push the switch core body to move towards the water inlet hole in the process, and finally the sealing element is pressed at the water inlet hole, the sealing element is extruded to deform so as to effectively seal the water inlet hole, thereby preventing raw material water from further flowing into the liquid caching device to cause the problem of overhigh liquid level, realizing the purpose of accurately and reliably controlling the liquid level in the liquid caching device, enabling raw material water which is not completely evaporated to smoothly flow back and be reused, and simultaneously avoiding waste caused by the ejection of the raw material water when exhausting.

The technical scheme of the application is further described below:

in one embodiment, the floating assembly comprises a floating ball and a linkage rod, one end of the linkage rod is rotatably arranged on the switch seat, and the other end of the linkage rod is connected with the floating ball.

In one embodiment, the switch seat is further provided with an avoidance notch, the avoidance notch is communicated with the mounting cavity, and one end of the linkage rod is rotatably mounted at the avoidance notch.

In one embodiment, an inner concave cambered surface is arranged at one end of the linkage rod, which faces the switch core, and an outer convex cambered surface is arranged at one end of the switch core, which faces the linkage rod, and the inner concave cambered surface can be in rotary abutting connection with the outer convex cambered surface.

In one embodiment, an outer convex cambered surface is arranged at one end of the linkage rod, which faces the switch core, and an inner concave cambered surface is arranged at one end of the switch core, which faces the linkage rod, and the inner concave cambered surface can be in rotary abutting connection with the outer convex cambered surface.

In one embodiment, one end of the switch core body, which faces the water inlet hole, is convexly provided with a mounting column, the sealing piece is sleeved outside the mounting column, and the diameter of the mounting column is smaller than the aperture of the water inlet hole.

In one embodiment, the outer peripheral wall of the mounting post is provided with an annular groove, and the sealing element is clamped in the annular groove.

In one embodiment, the water passing hole is positioned at a side lower position of the water inlet hole.

In one embodiment, a positioning clamping groove is formed in the peripheral wall of one end, far away from the floating assembly, of the switch seat.

In another aspect, the present application further provides a liquid caching device, which includes the liquid level control switch as described above.

When the liquid level value in the liquid caching device is lower than a preset height or no raw material water exists, the floating assembly is positioned at a low position in the liquid caching device, and the floating assembly does not generate pushing force on the switch core body at the moment, so that the raw material water flowing in from the water inlet hole can push the switch core body to retreat to separate the sealing element from the water inlet hole, the water inlet hole is communicated with the water outlet hole, raw material water can normally flow through the water outlet hole to be injected into the liquid caching device, and raw material water which is not evaporated is enabled to flow back into the liquid caching device; after a period of time, raw material water in the liquid caching device is continuously increased, when the liquid level value rises to a preset height, the floating assembly synchronously rises along with the rise of the liquid level, the floating assembly can push the switch core body to move towards the water inlet hole in the process, and finally the sealing element is pressed at the water inlet hole, the sealing element is extruded to deform so as to effectively seal the water inlet hole, thereby preventing raw material water from further flowing into the liquid caching device to cause the problem of overhigh liquid level, realizing the purpose of accurately and reliably controlling the liquid level in the liquid caching device, enabling raw material water which is not completely evaporated to smoothly flow back and be reused, and simultaneously avoiding waste caused by the ejection of the raw material water when exhausting.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a liquid level control switch according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1;

fig. 3 is a schematic structural diagram of a switch core in the present application.

Reference numerals illustrate:

100. a liquid level control switch; 10. a switch base; 11. a mounting cavity; 12. a water inlet hole; 13. a water passing hole; 14. positioning clamping grooves; 20. a switch core; 21. a convex cambered surface; 22. a mounting column; 221. an annular groove; 30. a seal; 40. a floating assembly; 41. a floating ball; 42. and a linkage rod.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

As shown in fig. 1 and 3, a liquid level control switch 100 according to an embodiment of the present application is shown, and it can be understood that the liquid level control switch 100 specifically includes a switch seat 10 (corresponding to a valve seat), a switch core 20 (corresponding to a valve core), and a floating assembly 40.

When in use, the liquid level control switch 100 is used for being assembled on a buffer container of the liquid buffer device, and used as an on-off control element for external raw water entering the buffer container.

With continued reference to fig. 1 and 2, in the present embodiment, the switch seat 10 is provided with a mounting cavity 11, and a water inlet 12 and a water outlet 13 respectively communicated with the mounting cavity 11; the switch core 20 is movably arranged in the mounting cavity 11, and a sealing piece 30 is arranged at one end of the switch core 20 facing the water inlet 12; one end of the floating assembly 40 is rotatably installed on the switch seat 10, the floating assembly 40 is used for floating on the liquid level in the liquid caching device, when the liquid level rises to a preset height, the floating assembly 40 pushes the switch core 20 to move towards the water inlet 12, and the sealing element 30 seals the water inlet 12; when the liquid level drops below the preset level, the floating assembly 40 is disengaged from the contact switch core 20, and the switch core 20 is retracted so that the sealing member 30 opens the water inlet 12, and the water inlet 12 communicates with the water outlet 13.

In summary, implementing the technical scheme of the embodiment has the following beneficial effects: the liquid level control switch 100 of the above solution is applied to the liquid buffer device, when the liquid level value in the liquid buffer device is lower than the preset height or no raw water exists, the floating assembly 40 is at the low position in the liquid buffer device, at this time, the floating assembly 40 does not generate an pushing force on the switch core 20, so that the raw water flowing in from the water inlet 12 can push the switch core 20 to retreat to separate the sealing member 30 from the water inlet 12, the water inlet 12 is communicated with the water passing hole 13, the raw water can normally flow through the water passing hole 13 to be injected into the liquid buffer device, and the raw water which is not completely evaporated flows back into the liquid buffer device; after a period of time, raw material water in the liquid caching device is continuously increased, when the liquid level value rises to a preset height, the floating assembly 40 synchronously rises along with the rising of the liquid level, in the process, the floating assembly 40 can push the switch core 20 to move towards the water inlet 12 and finally compress the sealing element 30 at the water inlet 12, the sealing element 30 is extruded to deform so as to effectively seal the water inlet 12, thereby preventing the raw material water from further flowing into the liquid caching device to cause the problem of overhigh liquid level, realizing the purpose of accurately and reliably controlling the liquid level in the liquid caching device, enabling the raw material water which is not completely evaporated to be smoothly refluxed and reused, and simultaneously avoiding waste caused by the ejection of the raw material water during exhaust.

Alternatively, the sealing member 30 may employ, but is not limited to, any one of a packing ring, a resin ring, and the like. For example, the sealing member 30 in this embodiment adopts a sealing rubber ring, which has advantages of easy obtaining, low use cost and strong sealing performance.

In some embodiments, the floating assembly 40 includes a floating ball 41 and a link lever 42, one end of the link lever 42 is rotatably mounted on the switch base 10, and the other end of the link lever 42 is connected to the floating ball 41. The floating ball 41 provides the floating force required by the floating assembly 40, so that the floating assembly 40 can float up and down according to the change of the liquid level height in the liquid buffer device, and accordingly when the linkage rod 42 rotates downwards along with the descending of the floating ball 41, the linkage rod 42 is separated from the contact switch core 20, so that the sealing element 30 can be separated from the water inlet 12; or the linkage rod 42 can also follow the rising of the floating ball 41 to rotate upwards, and the linkage rod 42 pushes the switch core 20, so that the sealing element 30 is pressed at the water inlet 12, and the water inlet 12 is blocked. The whole floating assembly 40 has simple structure, and high action sensitivity and accuracy following the liquid level height conversion, thereby accurately controlling the water inlet on-off and ensuring the liquid level height in the liquid caching device.

On the basis of the above embodiment, the switch seat 10 is further provided with an avoidance gap, the avoidance gap is communicated with the mounting cavity 11, and one end of the linkage rod 42 is rotatably mounted at the avoidance gap. The avoidance gap provides a space for the linkage rod 42 to rotate and extend into the installation cavity 11, so that after the floating assembly 40 rises along with the rise of the liquid level, the linkage rod 42 can smoothly contact and push the switch core 20 to move towards the water inlet 12, and finally the sealing element 30 seals the water inlet 12.

Further, an inner concave cambered surface is arranged at one end of the linkage rod 42 facing the switch core 20, an outer convex cambered surface 21 is arranged at one end of the switch core 20 facing the linkage rod 42, and the inner concave cambered surface can be in rotary abutting connection with the outer convex cambered surface 21. Alternatively, as an alternative to the above embodiment, the end of the linkage rod 42 facing the switch core 20 is provided with the outer convex arc surface 21, and the end of the switch core 20 facing the linkage rod 42 is provided with the inner concave arc surface, which can be rotationally abutted with the outer convex arc surface 21.

Along with the process that the floating assembly 40 continuously rises along with the rise of the liquid level, the linkage rod 42 continuously rotates upwards, the concave cambered surface and the convex cambered surface 21 are designed to be mutually matched and installed so as to be well matched with the rotation action of the linkage rod 42, and meanwhile, the linkage rod 42 can push the switch core body 20 to move towards the water inlet 12 in a different mode, and smooth action of the linkage rod 42 and the switch core body 20 is ensured.

With continued reference to fig. 2, in some embodiments, a mounting post 22 is protruding from an end of the switch core 20 facing the water inlet 12, and the sealing member 30 is sleeved outside the mounting post 22, where the diameter of the mounting post 22 is smaller than the aperture of the water inlet 12. The sealing element 30 is sleeved on the mounting column 22, so that the assembly mode with the switch core 20 is simple, and the mounting column 22 can extend into the water inlet 12 to a certain depth due to the fact that the diameter of the mounting column 22 is smaller than the aperture of the water inlet 12, so that the sealing element 30 is enabled to be in contact with the hole edge of the water inlet 12 more completely and tightly, and a better sealing effect is achieved.

Further, in order to ensure that the sealing member 30 is more firmly mounted and is not easy to fall off, the outer peripheral wall of the mounting post 22 is provided with an annular groove 221, and the sealing member 30 is clamped in the annular groove 221.

Further, on the basis of any of the above embodiments, the water passing hole 13 is located at a side lower position of the water inlet hole 12. Raw water flowing in from the water inlet 12 can automatically flow to the water outlet 13 under the self gravity and finally flows into the buffer container to be temporarily stored through the water outlet 13, and the water inlet mode and structure are simple, the reliability is high and the manufacturing cost is low.

In order to facilitate the installation and fixation of the liquid level control switch 100 to the buffer container, a positioning slot 14 is provided in the outer peripheral wall of the end of the switch base 10 remote from the floating assembly 40.

In addition, the present application further provides a liquid buffering device, which includes the liquid level control switch 100 according to any one of the embodiments.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Claims (10)

1. A liquid level control switch, comprising:

the switch seat is provided with an installation cavity, and a water inlet hole and a water passing hole which are respectively communicated with the installation cavity;

the switch core body is movably arranged in the mounting cavity, and a sealing piece is arranged at one end of the switch core body, which faces the water inlet hole; and

the floating assembly is rotatably arranged on the switch seat, is used for floating on the liquid level in the liquid caching device, pushes the switch core body to move towards the water inlet hole when the liquid level rises to a preset height, and seals the water inlet hole by the sealing piece; when the liquid level drops below a preset height, the floating assembly is separated from contact with the switch core body, the switch core body retreats to enable the sealing piece to open the water inlet hole, and the water inlet hole is communicated with the water passing hole.

2. The liquid level control switch of claim 1, wherein the float assembly comprises a float ball and a linkage rod, one end of the linkage rod is rotatably mounted on the switch base, and the other end of the linkage rod is connected with the float ball.

3. The liquid level control switch according to claim 2, wherein the switch seat is further provided with an avoidance notch, the avoidance notch is communicated with the mounting cavity, and one end of the linkage rod is rotatably mounted at the avoidance notch.

4. The liquid level control switch according to claim 2, wherein an end of the linkage rod facing the switch core is provided with a concave arc surface, an end of the switch core facing the linkage rod is provided with a convex arc surface, and the concave arc surface can be rotatably abutted with the convex arc surface.

5. The liquid level control switch according to claim 2, wherein an outer convex arc surface is provided at an end of the linkage rod facing the switch core, an inner concave arc surface is provided at an end of the switch core facing the linkage rod, and the inner concave arc surface can be rotatably abutted with the outer convex arc surface.

6. The liquid level control switch according to claim 1, wherein a mounting column is convexly arranged at one end of the switch core body, which faces the water inlet hole, the sealing element is sleeved outside the mounting column, and the diameter of the mounting column is smaller than that of the water inlet hole.

7. The fluid level control switch of claim 6, wherein the outer peripheral wall of the mounting post is provided with an annular groove, and the seal is snap-fit within the annular groove.

8. The liquid level control switch of claim 1, wherein the water passing hole is located at a laterally lower position of the water inlet hole.

9. The liquid level control switch of claim 1, wherein a peripheral wall of an end of the switch housing remote from the float assembly is provided with a detent.

10. A liquid caching device comprising a liquid level control switch according to any one of claims 1 to 9.

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