CN216288174U

CN216288174U - Adjustable liquid level switch

Info

Publication number: CN216288174U
Application number: CN202123068372.2U
Authority: CN
Inventors: 吴俊明
Original assignee: Shandong Dongvalve Refrigeration Technology Co ltd
Current assignee: Shandong Dongvalve Refrigeration Technology Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-04-12
Anticipated expiration: 2031-12-08

Abstract

The utility model belongs to the field of liquid level switch application equipment, and particularly relates to an adjustable liquid level switch which comprises a liquid level switch body, wherein the liquid level switch body comprises a hollow cylindrical valve body, an end cover is arranged at the upper end of the valve body, a liquid inlet is arranged at the lower end of the valve body, a control part is arranged above the end cover, a hollow cylindrical ball float rod is arranged in the valve body, penetrates through the end cover and is connected with the control part, a clamping block is arranged at the joint of the end cover and the ball float rod, the clamping block is sleeved on the periphery of the ball float rod, and a clamping screw for fastening the clamping block is arranged outside the clamping block. The liquid level switch has the advantages of reasonable design, simple structure and convenience in processing, can effectively improve the use effect of the liquid level switch, can be adapted to control the heights of a plurality of liquid levels, greatly improves the practicability of equipment and ensures that the use work is carried out smoothly.

Description

Adjustable liquid level switch

Technical Field

The utility model belongs to the field of liquid level switch application equipment, and particularly relates to an adjustable liquid level switch.

Background

The liquid level switch, also called level switch, level sensor, as the name implies, is the switch that is used for controlling the liquid level. The form is largely classified into a contact type and a non-contact type. The commonly used non-contact switch is a capacitance type liquid level switch, and the contact type floating ball type liquid level switch is most widely applied. The electrode type liquid level switch, the electronic type liquid level switch and the capacitance type liquid level switch can also be realized by adopting a contact type method.

At present, the most widely used float type liquid level switch is popular because of simple installation, low price and the like. The liquid level switch is characterized in that the liquid level switch is provided with a floating ball with a rod, and the rod linked with the floating ball changes along with the change of the liquid level, so that the closing of the switch is controlled. However, in the actual use process, certain disadvantages still exist: the use effect of the existing floating ball type liquid level switch can be influenced to a certain extent along with the increase of the use time; moreover, the existing liquid level switch can only be controlled for the same liquid level height, the use requirements of a plurality of liquid level heights cannot be met, the practicability is low, the use work process of people on the switch is influenced, and the normal development of the follow-up use work of people cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems, the utility model provides the adjustable liquid level switch which has the advantages of reasonable design, simple structure and convenient processing, can effectively improve the use effect of the liquid level switch, can be adaptive and realize the control of a plurality of liquid level heights, greatly improves the practicability of equipment and ensures the smooth use work.

In order to achieve the purpose, the technical scheme adopted by the utility model is that the adjustable liquid level switch comprises a liquid level switch body, the liquid level switch body comprises a hollow cylindrical valve body, an end cover is arranged at the upper end of the valve body, a liquid inlet is arranged at the lower end of the valve body, a control part is arranged above the end cover, a hollow cylindrical ball lever is arranged in the valve body, penetrates through the end cover and is connected with the control part, a clamping block is arranged at the joint of the end cover and the ball lever, the clamping block is sleeved on the periphery of the ball lever, and a clamping screw for fastening the clamping block is arranged outside the clamping block.

Preferably, the control part comprises a shell, a sensing supporting block is arranged in the shell, a switch control board is arranged on one side of the sensing supporting block, and a magnet is arranged on one side of the upper end of the switch control board.

Preferably, a through hole is formed in one side of the upper end of the valve body, a connecting piece is arranged in the ball lever, a floating ball is arranged at the lower end of the connecting piece, and a switch contact is arranged at the upper end of the connecting piece.

Preferably, the weight of the floating ball is larger than the adsorption magnetic force between the magnet and the switch contact.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. the adjustable liquid level switch provided by the utility model has the advantages of reasonable design, simple structure and convenience in processing, the using effect of the liquid level switch can be effectively improved, the liquid level switch can be adapted and realize the control of a plurality of liquid level heights, the practicability of equipment is greatly improved, and the smooth operation of the use is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

FIG. 1 is a schematic diagram of the internal structure of an adjustable level switch;

FIG. 2 is a schematic view of the internal structure of magnet attraction;

FIG. 3 is a schematic diagram of the structure of the cue raised;

FIG. 4 is a partially enlarged view of the structure at A in FIG. 3;

in the above figures, 1, a valve body; 1a, a liquid inlet; 1b, a through hole; 2. an end cap; 3. a cue stick; 4. a clamping block; 5. a clamping screw; 6. a housing; 7. a sensing support block; 8. a switch control panel; 9. a magnet; 10. a connecting member; 11. a floating ball; 12. and a switch contact.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

In the embodiment, as shown in fig. 1 and 2, an adjustable liquid level switch comprises a liquid level switch body, wherein the liquid level switch body comprises a hollow cylindrical valve body 1 which facilitates the entry of liquid, and an end cover 2 is arranged at the upper end of the valve body 1 to seal the valve body 1, so that the subsequent use convenience of the device is ensured; the lower end of the valve body 1 is provided with a liquid inlet 1a, so that a convenient condition is provided for the liquid to enter, and the liquid level height can be conveniently obtained; a control component is arranged above the end cover 2 and is used for receiving and transmitting interaction signals among the switch control panel 8, the magnet 9 and the switch contact 12, so that the liquid level switch can freely control whether an external pump body works or not according to the height of the liquid level, and the convenient control of the opening and closing of the liquid supply is finished; in order to improve the reasonability of the design of the device, a hollow cylindrical floating ball rod 3 is arranged in the valve body 1, penetrates through the end cover 2 and is connected with the control part, and the floating ball rod 3 facilitates the free up-and-down movement of the floating ball 11 and limits the moving range of the floating ball; a clamping block 4 is arranged at the joint of the end cover 2 and the ball lever 3, the clamping block 4 is sleeved on the periphery of the ball lever 3, a clamping screw 5 for fastening the clamping block 4 is arranged outside the clamping block 4, specifically, when the liquid level height needs to be adjusted, the clamping screw 5 on the clamping block 4 is loosened, the ball lever 3 is drawn out from the valve body 1, after the ball lever 3 is adjusted to a required position, the clamping screw 5 is screwed, so that convenience is provided for subsequent use of the liquid level switch, and the use requirements of people on different liquid level heights can be effectively met; this device reasonable in design, simple structure, processing convenience just can effectively promote liquid level switch's result of use, and can the adaptation and realize going on smoothly to the control of a plurality of liquid level height, improve equipment's practicality greatly and guarantee to use the work.

In order to realize convenient control on liquid injection and stop, the control part comprises a shell 6, so as to play a role in protecting devices such as the sensing support block 7, the switch contact 12 and the like, avoid the sensing support block from being invaded by substances such as liquid and the like and ensure the normal operation of the sensing support block; be provided with sensing supporting shoe 7 in the casing 6, sensing supporting shoe 7 one side is provided with switch control panel 8, need further explain: the switch control panel 8 can rotate relative to the sensing support block 7 to ensure convenient attraction between the magnet 9 and the switch contact 12, a torsion spring is arranged at the joint of the switch control panel 8 and the inner wall of the shell 6, and when the magnet 9 on the switch control panel 8 and the switch contact 12 are magnetically attracted, the torsion spring is stretched; after the magnet 9 and the switch contact 12 are disconnected and attracted, the torsion spring contracts and drives the switch control panel 8 to reset so as to realize the contact between the torsion spring and the sensing support block 7, thereby effectively receiving and transmitting signals and ensuring the use stability of the liquid level switch; in the process, specifically, the sensing support block 7 in the shell 6 and a control point on the switch control panel 8 can be matched with each other to receive a signal whether the switch control panel 8 is reset or not, when the switch control panel 8 is attached to the sensing support block 7, the reset state of the switch control panel 8 is obtained, and at the moment, the sensing support block 7 transmits the signal to the outside to enable an external pump body to work and operate, so that liquid supply operation is performed; when the liquid level rises and reaches the set highest liquid level, the switch contact 12 is adsorbed with the magnet 9 on the switch control panel 8, so that the switch control panel 8 is far away from the sensing support block 7, at the moment, the signal is interrupted and transmitted to the outside, the external pump body is suspended, the liquid supply is stopped, and the liquid level does not rise any more.

In order to improve the reasonability of the design of the device, one side of the upper end of the valve body 1 is provided with a through hole 1b, and particularly, the through hole 1b is communicated with the interior of the valve body 1 so as to ensure that liquid can smoothly flow into the valve body 1 from the liquid inlet 1a and bring convenience for people to acquire liquid level information; in order to ensure that the floating ball 11 can smoothly complete floating movement, a connecting piece 10 is arranged in the floating ball rod 3, a floating ball 11 is arranged at the lower end of the connecting piece 10, a switch contact 12 is arranged at the upper end of the connecting piece 10, specifically, after liquid enters the valve body 1 from the liquid inlet 1a, the floating ball 11 moves upwards after receiving the buoyancy of the liquid and drives the connecting piece 10 to move upwards, after the connecting piece 10 moves to the position where the switch contact 12 and the magnet are attracted, the floating ball 11 and the connecting piece 10 do not move any more, at the moment, a control part transmits a signal to an external liquid supply pump to stop the liquid supply work, so that the liquid level does not rise any more, and the use requirements of people are met; it needs to be further explained that: the connecting piece 10 is made of hard materials, is similar to a float in the prior art, has good floating effect, can reflect the liquid level height in real time, and avoids unsafe factors such as overflow of liquid and the like.

In order to guarantee the liquid level when descending, make switch contact 12 can effectively fall, floater 11 weight is greater than the absorption magnetic force between magnet 9 and switch contact 12, like this, because floater 11's self weight is greater than the adsorption affinity between magnet 9 and switch contact 12, when the liquid level descends, floater 11 has lacked buoyancy, and then make floater 11 can drive connecting piece 10 and switch contact 12 whereabouts, make magnet 9 reset under switch control panel 8's effect, at this moment, sensing supporting shoe 7 receives switch control panel 8's reset signal, and transmit it to the outside, thereby make the outside pump body carry out the filling of liquid.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. The utility model provides an adjustable liquid level switch, includes the liquid level switch body, the liquid level switch body including the valve body that is the design of cavity cylinder, its characterized in that, the valve body upper end be provided with the end cover, the valve body lower extreme be provided with the inlet, end cover top be provided with control unit, the valve body in be provided with the ball arm that is the design of cavity cylinder and run through the end cover and be connected with control unit, the junction of end cover and ball arm be provided with and press from both sides tight piece, the periphery at ball arm is established to pressing from both sides tight piece cover, the tight piece outside of pressing from both sides be provided with the clamp screw who is used for the tight piece of fastening clamp.

2. The adjustable liquid level switch of claim 1, wherein the control member comprises a housing, a sensing support block is disposed in the housing, a switch control plate is disposed on one side of the sensing support block, and a magnet is disposed on one side of an upper end of the switch control plate.

3. The adjustable liquid level switch of claim 2, wherein a through hole is formed at one side of the upper end of the valve body, a connecting piece is arranged in the ball lever, a floating ball is arranged at the lower end of the connecting piece, and a switch contact is arranged at the upper end of the connecting piece.

4. The adjustable liquid level switch of claim 3, wherein the weight of said float ball is greater than the attractive magnetic force between said magnet and said switch contact.