Structure for preventing misoperation of liquid level switch

Abstract

The utility model relates to the technical field of liquid level control, in particular to a structure for preventing misoperation of a liquid level switch, which comprises a liquid tank, a liquid level detection mechanism is arranged on the inner surface of the liquid tank and comprises a circular tube, and the upper surface of the circular tube is fixedly connected with the inner surface of the liquid tank. The inner surface of the round pipe is fixedly connected with a liquid level switch, the outer arc surface of the liquid level switch is fixedly connected with a liquid level switch floater, and a liquid inlet hole is formed in the lower surface of the round pipe. A round pipe with an appropriate size is installed below the liquid level switch and welded to the lower portion of the liquid box cover plate, liquid enters the round pipe through the liquid inlet hole, the liquid level in the round pipe and the liquid level in the box body are kept consistent, due to the fact that the round pipe is internally provided with a barrier, suction force of the circulating pump and impact force of returned liquid cannot affect a floater of the liquid level switch in the round pipe, and the liquid level switch is prevented from being damaged. Therefore, the liquid level switch does not generate misoperation.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid level control technical field, concretely to a structure of preventing liquid level switch misoperation. BACKGROUND

[0002] The gas-steam combined cycle generator loop pipe pit liquid level control floating ball support device originally adopts the mode of binding by wire, and the liquid level switch floating ball often drifts, resulting in frequent start and stop of the loop pipe pit drainage pump and frequent burning of the DC contactor.

[0003] Through the search, the liquid level control device mounting bracket of China open number for: CN213482712U disclosed the liquid level control device mounting bracket includes branch pipe one (1), branch pipe two (2), branch pipe three (3), branch pipe four (4), branch pipe four (4), branch pipe five (5), support (6), rubber card (7) and fixed frame (8). The liquid level control device mounting bracket fixes the floating ball by setting the branch pipe and the support, prevents the floating ball from often drifting to cause the cable mutual entanglement, can effectively reduce the misoperation of liquid level switch. The utility model discloses a kind of liquid level control device mounting bracket can adapt to different liquid level control needs, structure is flexible, prolongs the life of motor, prevents liquid level switch misoperation, and can be applicable to various drainage pit accumulated water discharge.

[0004] But since most liquid tanks install backflow pipe and other pipelines, since most pipelines need to be held by hand or machine, aligning and installing, which results in low efficiency during installation, in view of this, we propose a structure of preventing liquid level switch misoperation. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of structures of preventing liquid level switch misoperation, solve the problem that liquid is easy to produce shaking and misoperation when circulating or backflowing.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of structure of preventing liquid level switch misoperation, including liquid tank, the inner surface of the liquid tank is provided with liquid level detection mechanism, the liquid level detection mechanism includes circular tube, the upper surface of the circular tube is fixedly connected with the inner surface of liquid tank, the inner surface of the circular tube is fixedly connected with liquid level switch, the outer arc surface of the liquid level switch is fixedly connected with liquid level switch float, the lower surface of the circular tube is equipped with liquid inlet hole, the outer arc surface of the circular tube is equipped with air hole, the left surface of the liquid tank is provided with auxiliary installation mechanism.

[0008] Preferably, the auxiliary mounting mechanism comprises a fixed platform fixedly connected with the liquid tank, an arc-shaped groove is formed on the upper surface of the fixed platform, an arc-shaped plate is slidably connected to the inner surface of the arc-shaped groove, a sliding rod penetrates through and is slidably connected to the inner surface of the arc-shaped plate, the sliding rod is fixedly connected to the inner surface of the arc-shaped groove, a spring one is sleeved on the outer arc surface of the sliding rod, and the spring one is fixedly connected to the inner surface of the arc-shaped groove.

[0009] Preferably, a plurality of clamping grooves are linearly arranged on the upper surface of the fixed platform, and a clasp is slidably connected to the inner surface of each clamping groove.

[0010] Preferably, a spring two is sleeved on the outer arc surface of the clasp, one end of the spring two is fixedly connected to the clasp, and the other end of the spring two is fixedly connected to the upper surface of the arc-shaped plate.

[0011] Preferably, a sliding groove is formed on the upper surface of the clasp, a limiting rod is fixedly connected to the inner surface of the sliding groove, an L-shaped limiting buckle is slidably connected to the inner surface of the sliding groove, the limiting rod penetrates through and is slidably connected to the L-shaped limiting buckle, and a spring three is sleeved on the outer arc surface of the limiting rod.

[0012] Preferably, an F-shaped auxiliary buckle is fixedly connected to the upper surface of the clasp, and the left side surface of the F-shaped auxiliary buckle is in a hump shape.

[0013] Preferably, the end of the L-shaped limiting buckle away from the sliding groove is in a triangular shape, and the L-shaped limiting buckle is slidably connected to the F-shaped auxiliary buckle.

[0014] By the above technical scheme, the structure for preventing the liquid level switch from malfunctioning is provided.

[0015] (1) The utility model discloses a liquid tank and the setting of liquid level detection mechanism install a pipe of appropriate size below the liquid level switch, and the liquid level switch will not produce the malfunctioning because the pipe is blocked, and the suction of circulating pump and the impact of liquid return will not influence the float of the liquid level switch in the pipe.

[0016] (2) The utility model discloses a fixed platform, arc-shaped plate, spring and the setting of sliding rod, when installing the return flow pipeline, can fix the return flow pipeline with the liquid tank through arc-shaped plate, makes installation more convenient, and through the setting of clasp and L-shaped limiting buckle, makes operation more convenient. DRAWINGS

[0017] The drawings described herein are used to provide further understanding of the present application and form a part of the present application.

[0018] Figure 1 is a schematic view of the overall structure of the present application;

[0019] Figure 2 is a schematic view of the internal structure of the liquid tank of the present application;

[0020] Figure 3 is a schematic view of the overall structure of the auxiliary installation mechanism of the present application;

[0021] Figure 4 is a schematic view of the auxiliary installation mechanism of the present application Figure 3 is an enlarged schematic view of the structure of part A of the present application.

[0022] In the figure: 1, liquid tank; 2, liquid level detection mechanism; 21, round pipe; 22, liquid level switch; 23, liquid level switch float; 24, liquid inlet hole; 25, air hole; 3, auxiliary installation mechanism; 31, fixed platform; 32, arc-shaped slot; 33, arc-shaped plate; 34, sliding rod; 35, spring one; 36, clamping groove; 37, buckle; 38, spring two; 39, sliding slot; 310, limiting rod; 311, L-shaped limiting buckle; 312, spring three; 313, F-shaped auxiliary buckle. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Embodiment one

[0025] Please refer to Figure 1 - Figure 4The utility model provides a kind of structure for preventing liquid level switch malfunction, including liquid tank 1, the inner surface of liquid tank 1 is provided with liquid level detection mechanism 2, liquid level detection mechanism 2 includes round pipe 21, the upper surface of round pipe 21 is fixedly connected with the inner surface of liquid tank 1, the inner surface of round pipe 21 is fixedly connected with liquid level switch 22, the outer arc surface of liquid level switch 22 is fixedly connected with liquid level switch float 23, the lower surface of round pipe 21 is equipped with liquid inlet hole 24, the outer arc surface of round pipe 21 is equipped with air hole 25, the liquid tank 1 of usual due to having circulating pump always extracts liquid in tank and transports to outside, and there is greater suction force in the liquid suction port of circulating pump and tank body connection;While liquid from outside backflow enters tank, there is greater impact force to original liquid in tank, if liquid level switch 22 is simply installed on tank body, it is extremely possible to cause liquid level switch float 23 to swing up and down due to the suction force of circulating pump and the impact force of back liquid, to generate malfunction, below the installation position of liquid level switch 22, a round pipe 21 of suitable size is welded in the lower portion of liquid tank 1 cover plate, round pipe 21 bottom is welded with a round plate, and a small hole is opened in the bottom of round plate, and the liquid in tank body passes the small hole and enters round pipe 21, so that the liquid level in round pipe 21 is consistent with the liquid level in tank body.A small hole is also opened on the upper part of the circular tube 21 above the liquid level to communicate with the atmosphere. When the liquid in the tank begins to circulate, due to the blockage of the circular tube 21, the suction of the circulating pump and the impact force of the liquid return will not affect the liquid level switch float 23 in the circular tube 21, and the liquid level switch 22 will not be misoperated. The left surface of the liquid tank 1 is provided with an auxiliary mounting mechanism 3, which comprises a fixed platform 31 fixedly connected with the liquid tank 1. An arc-shaped groove 32 is formed in the upper surface of the fixed platform 31. An arc-shaped plate 33 is slidably connected to the inner surface of the arc-shaped groove 32. A sliding rod 34 penetrates the inner surface of the arc-shaped plate 33 and is slidably connected therewith. The outer arc surface of the sliding rod 34 is sleeved with a spring 35, which is fixedly connected with the inner surface of the arc-shaped groove 32. The arc-shaped plate 33 is fixedly connected with the other end of the spring 35. Under the condition that the arc-shaped plate 33 is not limited, the spring 35 will pull the arc-shaped plate 33 towards the direction of the liquid tank 1. A clamping groove 36 is linearly arranged on the upper surface of the fixed platform 31. A buckle 37 is slidably connected to the inner surface of the clamping groove 36. The buckle 37 is slidably connected to the lower surface of the arc-shaped plate 33. The outer arc surface of the buckle 37 is sleeved with a spring 38. One end of the spring 38 is fixedly connected with the buckle 37, and the other end is fixedly connected with the upper surface of the arc-shaped plate 33. A sliding groove 39 is formed in the upper surface of the buckle 37. A limiting rod 310 is fixedly connected to the inner surface of the sliding groove 39. An L-shaped limiting buckle 311 is slidably connected to the inner surface of the sliding groove 39. The L-shaped limiting buckle 311 can stably slide in the sliding groove 39 through the limiting of the sliding groove 39. The limiting rod 310 penetrates the L-shaped limiting buckle 311 and is slidably connected therewith. The outer arc surface of the limiting rod 310 is sleeved with a spring 312. An F-shaped auxiliary buckle 313 is fixedly connected to the upper surface of the buckle 37. The left side surface of the F-shaped auxiliary buckle 313 is hump-shaped. The F-shaped auxiliary buckle 313 limits the L-shaped limiting buckle 311, so that the buckle 37 will not be affected by the elastic force of the spring 38 and move upward to separate from the clamping groove 36. The end of the L-shaped limiting buckle 311 away from the sliding groove 39 is triangular. The L-shaped limiting buckle 311 is slidably connected with the F-shaped auxiliary buckle 313.

[0026] In the embodiment, through the arrangement of the liquid tank 1 and the liquid level detection mechanism 2, the suction force of the circulating pump and the impact force of the liquid return will not affect the liquid level switch float 23 in the circular pipe 21, and the liquid level switch 22 will not be misoperated, and through the arrangement of the fixed platform 31, the arc-shaped plate 33, the spring I 35 and the slide rod 34, when the return pipe is installed, the return pipe can be fixed with the liquid tank 1 through the arc-shaped plate 33, so that the installation is more convenient, and through the arrangement of the buckle 37 and the L-shaped limiting buckle 311, the operation is more convenient.

[0027] When the pipe needs to be connected with the liquid tank 1, the installation joint of the pipe is placed in the arc-shaped groove 32, the buckle 37 is pressed downward, the buckle 37 moves downward, the spring II 38 is compressed, the L-shaped limiting buckle 311 moves downward, the inclined surface of the L-shaped limiting buckle 311 is limited by the inclined surface of the F-shaped auxiliary buckle 313, at this time, the L-shaped limiting buckle 311 moves leftward and is separated from the F-shaped auxiliary buckle 313, the spring III 312 is compressed, and when the L-shaped limiting buckle 311 has not been restored by the elastic force of the spring III 312, the buckle 37 is driven to move upward by the elastic force of the spring II 38, the buckle 37 is separated from the clamping groove 36, the L-shaped limiting buckle 311 is separated from the F-shaped auxiliary buckle 313, when the buckle 37 is separated from the clamping groove 36, the arc-shaped plate 33 is pulled to move in the direction of the liquid tank 1 by the elastic force of the spring I 35, the arc-shaped plate 33 pushes the placed pipe installation joint to move and contact the installation part of the liquid tank 1, and the pipe is tightly attached to the installation part by the elastic force of the spring I 35, so that the installation is convenient.

[0028] It should be noted that the relative terms such as first and second and the like are used herein solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0029] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A structure for preventing malfunction of a liquid level switch, comprising a liquid tank (1), characterized in that: The inner surface of the liquid tank (1) is provided with a liquid level detection mechanism (2). The liquid level detection mechanism (2) includes a circular tube (21). The upper surface of the circular tube (21) is fixedly connected to the inner surface of the liquid tank (1). A liquid level switch (22) is fixedly connected to the inner surface of the circular tube (21). A liquid level switch float (23) is fixedly connected to the outer arc surface of the liquid level switch (22). A liquid inlet hole (24) is opened on the lower surface of the circular tube (21). A vent hole (25) is opened on the outer arc surface of the circular tube (21). An auxiliary installation mechanism (3) is provided on the left surface of the liquid tank (1).

2. The structure for preventing malfunction of a liquid level switch according to claim 1, characterized in that: The auxiliary installation mechanism (3) includes a fixed platform (31), which is fixedly connected to the liquid tank (1). An arc-shaped groove (32) is provided on the upper surface of the fixed platform (31). An arc-shaped plate (33) is slidably connected to the inner surface of the arc-shaped groove (32). A slide rod (34) passes through the inner surface of the arc-shaped plate (33) and is slidably connected to the slide rod (34). The slide rod (34) is fixedly connected to the inner surface of the arc-shaped groove (32). A spring (35) is sleeved on the outer arc surface of the slide rod (34). The spring (35) is fixedly connected to the inner surface of the arc-shaped groove (32). The arc-shaped plate (33) is fixedly connected to the other end of the spring (35).

3. The structure for preventing malfunction of a liquid level switch according to claim 2, characterized in that: The upper surface of the fixed platform (31) is provided with slots (36) in a linear array. The inner surface of the slots (36) is slidably connected with buckles (37). The lower surface of the buckles (37) penetrates the arc plate (33) and is slidably connected with the arc plate (33).

4. The structure for preventing malfunction of a liquid level switch according to claim 3, characterized in that: A second spring (38) is sleeved on the outer arc surface of the buckle (37). One end of the second spring (38) is fixedly connected to the buckle (37), and the other end of the second spring (38) is fixedly connected to the upper surface of the arc plate (33).

5. The structure for preventing malfunction of a liquid level switch according to claim 4, characterized in that: The upper surface of the buckle (37) is provided with a groove (39), the inner surface of the groove (39) is fixedly connected with a limiting rod (310), the inner surface of the groove (39) is slidably connected with an L-shaped limiting buckle (311), the limiting rod (310) passes through the L-shaped limiting buckle (311) and is slidably connected with the L-shaped limiting buckle (311), and a spring (312) is sleeved on the outer arc surface of the limiting rod (310).

6. The structure for preventing malfunction of a liquid level switch according to claim 5, characterized in that: The upper surface of the buckle (37) is fixedly connected with an F-type auxiliary buckle (313), and the left side surface of the F-type auxiliary buckle (313) is shaped like a camel hump.

7. The structure for preventing malfunction of a liquid level switch according to claim 6, characterized in that: The end of the L-shaped limit buckle (311) away from the slide groove (39) is triangular, and the L-shaped limit buckle (311) is slidably connected to the F-shaped auxiliary buckle (313).

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