Novel floating ball liquid level switch control device

Abstract

The utility model provides a novel floating ball liquid level switch control device which comprises a floating ball rod and a box body with a rectangular cross section, the bottom of the box body is provided with a mounting hole, a mounting plate is arranged in the box body, a plurality of inductive switches are arranged on the mounting plate at intervals, and the mounting plate is perpendicular to a bottom plate with the mounting hole at the bottom of the box body. A guide sleeve penetrating through a bottom plate is arranged on the bottom plate with an installation hole at the bottom of the box body, the axis of the guide sleeve is perpendicular to the bottom plate, the floating ball rod penetrates through the guide sleeve and is in sliding connection with the guide sleeve, and the part, located in the box body, of the floating ball rod is provided with an induction contact. The floating ball rod can be close to the inductive switches, and a floating ball is arranged on the portion, located outside the box body, of the floating ball rod. The device has the beneficial effects that the floating ball is always kept above the water surface, the height of the floating ball is changed along with the change of the water level, and garbage and floating objects in sewage cannot wind and press the floating ball, so that the reliability of the device is ensured.

Description

Technical Field

[0001] The utility model relates to a novel floating ball liquid level switch control device. Background Art

[0002] In water supply and drainage operations, a floating ball switch is commonly used as a device to control the start and stop of a water pump to control the liquid level of a water tank or a pool. The floating ball switch can change the closing of the contacts inside the floating ball according to the water level height to achieve the purpose of controlling the start and stop of the water pump. When the water quality is clean water, there is no problem with this control. When the water quality is sewage, because the water contains a large amount of impurities, garbage and some floating objects. The sensitivity of the traditional floating ball device will decrease, and it will even be entangled or pressed by the garbage and floating objects in the water, making it unable to float normally, resulting in the switch malfunctioning. The water pump controlled by the floating ball cannot start and stop normally either, leading to drainage accidents. Summary of the Invention

[0003] The problem to be solved by the utility model is to provide a novel floating ball liquid level switch control device, which is made of 304 stainless steel as a whole, has strong corrosion resistance and high and low temperature resistance, and strong environmental adaptability, and can be used indoors and outdoors.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: a novel floating ball liquid level switch control device, including a floating ball rod and a box body with a rectangular cross-section. The bottom of the box body has mounting holes. There is a mounting plate inside the box body. A plurality of induction switches are arranged at intervals on the mounting plate. The mounting plate is perpendicular to the bottom plate of the box body with the mounting holes. A guide sleeve passing through the bottom plate is provided on the bottom plate of the box body with the mounting holes. The axis of the guide sleeve is perpendicular to the bottom plate. The floating ball rod passes through the guide sleeve, and the floating ball rod is slidably connected with the guide sleeve. A sensing contact is provided on the part of the floating ball rod located inside the box body. When the floating ball rod slides in the guide sleeve, it can approach a plurality of the induction switches respectively. A floating ball is provided on the part of the floating ball rod located outside the box body.

[0005] Optionally, a set of opposite side plates of the box body are transparent plates for observing the position of the sensing contact.

[0006] Optionally, a scale is provided on the floating ball rod.

[0007] Optionally, the width of the sensing contact is greater than the inner diameter of the guide sleeve.

[0008] Optionally, the transparent plate is a detachable structure, the sensing contact is an annular structure sleeved on the floating ball rod, and a setscrew is provided on the side surface of the sensing contact. The inner end of the setscrew can pass through the annular structure and abut against the side plate of the floating ball rod.

[0009] Optionally, the side of the float rod has a guiding chute, and the inner side wall of the annular structure has a guiding slider adapted to the guiding chute.

[0010] The advantages and positive effects of the present utility model are as follows: By adopting the above technical solution, the float always remains above the water surface, and its height changes with the change of the water level. The garbage and floating objects in the sewage will not entangle and press it, thus ensuring the reliability of the device. Description of the Drawings

[0011] Figure 1 is the overall schematic diagram of the specific embodiment of the present utility model;

[0012] Figure 2 is Figure 1 the front structure schematic diagram of

[0013] Figure 3 is Figure 2 the schematic diagram of the A-A cross-section in

[0014] Figure 4 the schematic diagram of the installation position of the device;

[0015] Figure 5 is the schematic diagram of the connection structure of the improved induction contact and the float rod;

[0016] In the figure: 1, box body; 1-1, transparent plate; 1-2, guiding sleeve; 1-3, mounting hole; 2, mounting plate; 3, induction switch; 4, float rod; 4-1, induction contact; 4-2, float; 4-3, guiding chute; 4-4, setscrew; 5, water tank. Specific Embodiment

[0017] The present utility model will be further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0018] As Figures 1 to 4 shown, the present utility model provides a new type of float level switch control device, which includes a float rod 4 and a box body 1 with a rectangular cross-section. The bottom of the box body 1 has mounting holes 1-3 for bolt connection with a water tank 5. The front and rear plates of the box body 1 are both transparent plates 1-1, which are convenient for observing the inside of the box body 1. The transparent plates 1-1 are detachably arranged by bolts. There is a mounting plate 2 inside the box body 1. A plurality of inductive switches 3 are arranged at intervals on the mounting plate 2. These inductive switches 3 are electrically connected to a water pump on the water tank 5. The mounting plate 2 is perpendicular to the bottom plate of the box body 1. A guide sleeve 1-2 passing through the bottom plate is provided on the bottom plate of the box body 1. The axis of the guide sleeve 1-2 is perpendicular to the bottom plate. The float rod 4 passes through the guide sleeve 1-2, and the float rod 4 is slidably connected to the guide sleeve 1-4. The upper end of the float rod 4 has an inductive contact 4-1. When the float rod 4 slides in the guide sleeve 1-2, it can approach a plurality of inductive switches 3 respectively. The lower end of the part of the float rod 4 outside the box body 1 has a float 4-2.

[0019] Scales can be set on the float rod 4 for estimating the liquid level height in the water tank 5.

[0020] The width of the inductive contact 4-1 is greater than the inner diameter of the guide sleeve 1-2 to prevent the float rod 4 from falling off the guide sleeve 1-2 when the water level in the water tank 5 is too low.

[0021] To make the stroke range of the float device adjustable, as Figure 5As shown, the connection structure between the sensing contact 4-1 and the float rod 4 is improved on the basis of the above structure. The sensing contact 4-1 is an annular structure sleeved on the float rod 4. The side of the sensing contact 4-1 has a top screw 4-4. The inner end of the top screw 4-4 can pass through the annular structure and contact the side plate of the float rod 4. The side of the float rod 4 has a guide slot 4-3, and the inner side wall of the annular structure has a guide slider adapted to the guide slot 4-3. The range of the float 4-2 can be changed by adjusting the position of the sensing contact 4-1 on the float rod 4.

[0022] The working principle of the above-mentioned novel float liquid level switch control device is as follows: the float 4-2 rises and falls with the change of the water level in the water tank 5. There is a float rod 4 on the upper end of the float 4-2. The float rod 4 passes through the guide sleeve 1-2 and extends into the box body 1. A number of induction switches 3 arranged at intervals are installed in the box body 1 as needed. The part of the float rod 4 extending into the box body 1 is installed with an induction contact 4-1. Another function of this induction contact 4-1 is that when the water level is too low, the induction contact 4-1 will hang on the guide sleeve 1-2 to prevent the float 4-2 from falling. When the water level rises, the float 4-2 rises accordingly, and the induction contact 4-1 on the upper part of the float rod 4 will approach the induction switch 3. After the induction switch 3 is triggered, it will send a signal to control the water pump to make a corresponding action. When the water level continues to rise, the induction contact 4-1 will successively trigger the second and third induction switches 3. Each induction switch 3 will send different signals according to the setting to control the different wage states of the water pump. On the contrary, when the water level drops, the sensing contact 4 - 1 approaches the sensing switch 3 again in sequence, and the sensing switch 3 sends a signal again to control the water pump accordingly again.

[0023] This device can be installed with different numbers of induction switches 3 according to needs, so as to control different working states of the water pump and control multiple water pumps at the same time.

[0024] The characteristics of the above-mentioned new float liquid level switch control device are: a. Its main body is installed above the water tank 5 or the pool to avoid contact with water. Its exterior is a stainless steel box 1, which is windproof and rainproof, and can provide complete protection for internal switches and other components, and can be used indoors and outdoors; b. The float 4-2 and other accessories are also made of stainless steel, which is corrosion-resistant and highly resistant to high and low temperatures, and is suitable for various environments; c. The float 4-2 of this device always remains above the water surface, and its height changes with the water level. Garbage and floating objects in the sewage will not entangle or suppress it, thereby ensuring the reliability of the device.

[0025] The above is a detailed description of the embodiments of the utility model, but the contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A new type of float liquid level switch control device, characterized in that: It includes a float rod and a box with a rectangular cross-section, the bottom of the box has a mounting hole, the box has a mounting plate, a plurality of induction switches are arranged on the mounting plate at intervals, the mounting plate is perpendicular to the bottom plate of the box with the mounting hole, the bottom plate of the box with the mounting hole is provided with a guide sleeve passing through the bottom plate, the axis of the guide sleeve is perpendicular to the bottom plate, the float rod passes through the guide sleeve, the float rod is slidably connected to the guide sleeve, the part of the float rod located in the box has an induction contact, when the float rod slides in the guide sleeve, it can approach the plurality of induction switches respectively, and the part of the float rod located outside the box has a float.

2. The novel float liquid level switch control device according to claim 1 is characterized in that: A group of opposite side panels on the box body are transparent panels for observing the position of the induction contacts.

3. The novel float liquid level switch control device according to claim 2 is characterized in that: The float rod is provided with scales.

4. The novel float liquid level switch control device according to claim 2 is characterized in that: The width of the induction contact is greater than the inner diameter of the guide sleeve.

5. The novel float liquid level switch control device according to any one of claims 2 to 4, characterized in that: The transparent plate is a detachable structure, the sensing contact is an annular structure sleeved on the float rod, the side of the sensing contact is provided with a top screw, and the inner end of the top screw can pass through the annular structure and contact the side plate of the float rod.

6. The novel float liquid level switch control device according to claim 5 is characterized in that: The side surface of the float rod is provided with a guide slot, and the inner side wall of the annular structure is provided with a guide sliding block adapted to the guide slot.

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