Floating ball type liquid level switch

Abstract

The utility model relates to the technical field of liquid level switches, in particular to a floating ball type liquid level switch which comprises a junction box, a guide rod is installed at the bottom end of the junction box, the upper end and the lower end of the guide rod are in threaded connection with nuts, a sleeve is sleeved outside the guide rod, the two ends of the sleeve abut against the two nuts respectively, and the two ends of the sleeve abut against the two nuts respectively. A plurality of floating ball bodies are connected to the sleeve in a sliding mode, a plurality of stop rings are connected to the sleeve in a sliding mode, one floating ball body is installed between every two stop rings on the sleeve, limiting rods are connected to the stop rings in a sliding mode, and a plurality of limiting holes are formed in the sleeve at equal intervals. The ends of the limiting rods are clamped with the corresponding limiting holes, the sleeve is provided with a scale strip, and the guide rod is installed on the installation frame through a fixing structure. Positions of the floating ball body and the stop ring can be adjusted more conveniently and simply, and use is more flexible and comfortable.

Description

TECHNICAL FIELD

[0001] The utility model relates to a liquid level switch, in particular to a floating ball type liquid level switch, belongs to liquid level switch technical field. BACKGROUND

[0002] The floating ball type liquid level switch is a commonly used liquid level control device, detects the liquid level change through the floating ball ascending and descending with the liquid level, and converts into electric signal to output and control, it is mainly composed of floating ball, guide rod (or flexible shaft), magnetic steel and sensor etc.

[0003] However, the stop ring and the floating ball body of the conventional floating ball type liquid level switch are directly installed on the sleeve, when it is needed to adjust the installation positions of the multiple floating ball bodies on the guide rod according to the actual application environment, it is needed to disassemble all the stop rings and the floating ball bodies, then use the measuring scale to calibrate multiple switch action points on the guide rod, and then install the multiple stop rings and the floating ball bodies on the specified switch action points on the guide rod, and the stop ring is usually fixed on the guide rod through the bolt, so that the hexagonal wrench is needed to disassemble and install the stop ring one by one, the operation is very cumbersome, not flexible and convenient, and the use convenience needs to be improved. UTILITY MODEL CONTENTS

[0004] The utility model discloses a floating ball type liquid level switch, which can quickly adjust the positions of the stop ring and the floating ball body through the cooperation of the limiting rod on the stop ring and the limiting hole on the sleeve, so that the operation is more convenient and simple, the sleeve is provided with a scale bar, the operation positions of the stop ring and the floating ball body can be quickly grasped according to the indication of the scale bar, and the liquid level switch is more flexible to use.

[0005] The utility model discloses a following technical scheme to realize above -mentioned purpose, a kind of float ball type liquid level switch, including terminal box, the bottom end of terminal box is equipped with guide rod, the upper and lower ends of guide rod are all screw thread connection with nut, the outside of guide rod is equipped with sleeve, the both ends of sleeve are respectively with two nuts and touch, a plurality of float ball bodies are slidably connected on the sleeve, adjusting structure is installed on the sleeve, the adjusting structure includes stop ring, a plurality of stop rings are slidably connected on the sleeve, one float ball body is installed between every two stop rings on the sleeve, limit rod is slidably connected on the stop ring, a plurality of limit holes are equidistantly provided on the sleeve, the end of limit rod is engaged with corresponding limit hole, scale bar is equipped on the sleeve, guide rod is installed on mounting bracket by fixed structure.

[0006] Preferably, the limit rod is in "L" shape structure, and the limit rod is perpendicular to the sleeve.

[0007] Preferably, the limit rod is fixedly connected with an anti-dropping ring, and the anti-dropping ring is fixedly connected with the stop ring through a spring.

[0008] Preferably, the fixed structure includes a sliding plate, the mounting bracket is slidably connected with the sliding plate, and the sliding plate clamps the guide rod with the mounting bracket.

[0009] Preferably, the mounting bracket and the sliding plate are both provided with arc surface structures, the mounting bracket and the sliding plate are both provided with rubber pads at the arc surface structures, and the rubber pads are in contact with the guide rod.

[0010] Preferably, the mounting bracket is provided with two guide rods with T-shaped cross sections, and the sliding plate is slidably connected with the guide rods.

[0011] Preferably, the guide rods are provided with pull springs, one end of the pull spring is fixedly connected with the mounting bracket, and the other end of the pull spring is fixedly connected with the sliding plate.

[0012] Preferably, the mounting bracket and the sliding plate are both fixedly connected with clamps with arc-shaped cross sections at upper ends, the terminal box is fixedly connected with a connecting sleeve at the bottom end, the clamps are in contact with the connecting sleeve, the connecting sleeve is fixedly connected with two protrusions, and the protrusions are engaged with grooves in the clamps.

[0013] Preferably, the sliding plate is provided with a pull plate, the pull plate is fixedly connected with a connecting block, the connecting block is screw-connected with a screw rod, and the screw rod is inserted into one of the guide rods.

[0014] Preferably, the terminal box is provided with a warning light, and the mounting bracket is in "L" shape structure.

[0015] The utility model discloses a beneficial effect is: the bottom end mounting of junction box has the guide rod, the upper and lower both ends of guide rod all are threadedly connected with the nut, the outside of guide rod is equipped with the sleeve, and the both ends of sleeve are respectively with two nuts and resist, a plurality of floating ball bodies are slidably connected on the sleeve, a plurality of stop rings are slidably connected on the sleeve, install one floating ball body between every two stop rings on the sleeve, the stop ring is slidably connected with the limiting rod, a plurality of limiting holes are equidistantly seted up on the sleeve, and the end of limiting rod is engaged with the corresponding limiting hole, and the sleeve is equipped with the scale bar, and the position of stop ring and floating ball body can be adjusted quickly through the limiting rod on the stop ring and the limiting hole on the sleeve, make the operation more convenient and simple, and the sleeve is equipped with the scale bar, and the operating position of stop ring and floating ball body can be grasped quickly according to the scale bar indication, make liquid level switch use more flexible. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is Figure 1 The enlarged schematic diagram of A department structure shown in figure;

[0018] Figure 3 It is the connecting structure schematic diagram of sleeve and guide rod of the utility model;

[0019] Figure 4 It is Figure 3 The enlarged schematic diagram of B department structure shown in figure;

[0020] Figure 5 It is Figure 3 The enlarged schematic diagram of C department structure shown in figure;

[0021] Figure 6 It is the connecting structure schematic diagram of mounting frame and sliding plate of the utility model;

[0022] Figure 7 It is the connecting structure schematic diagram of screw rod and guide rod of the utility model.

[0023] In the drawing: 1, junction box;2, mounting frame;3, guide rod;4, fixed structure;401, sliding plate;402, clamp;403, guide rod;404, tension spring;405, pull plate;406, connecting block;407, screw rod;408, rubber pad;409, connecting sleeve;410, lug;5, sleeve;6, floating ball body;7, adjusting structure;701, stop ring;702, limiting hole;703, limiting rod;704, anti -drop ring;705, spring;706, scale bar;8, warning light;9, nut. DETAILED DESCRIPTION

[0024] The technical solutions of the utility model are further illustrated below in combination with the drawings and through specific embodiments. Among them, the drawings are only used for example illustration, and the representation is only a schematic diagram, not a real object diagram, and cannot be understood as the limitation of the utility model; in order to better illustrate the embodiments of the utility model, some components of the drawings can be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted.

[0025] Please refer to Figures 1-7 As shown in the figure, a kind of ball float liquid level switch, including terminal box 1, the bottom end of the terminal box 1 is equipped with guide rod 3, the upper and lower ends of the guide rod 3 are both screw-connected with nut 9, the outside of the guide rod 3 is equipped with sleeve 5, the two ends of the sleeve 5 are respectively in abutment with two nuts 9, the sleeve 5 is slidably connected with multiple ball body 6, the sleeve 5 is equipped with adjusting structure 7, the adjusting structure 7 includes stop ring 701, the sleeve 5 is slidably connected with multiple stop ring 701, one ball body 6 is installed between every two stop ring 701 on the sleeve 5, limit rod 703 is slidably connected on the stop ring 701, multiple limit hole 702 are equidistantly formed on the sleeve 5, the end of the limit rod 703 is engaged with corresponding limit hole 702, scale bar 706 is equipped on the sleeve 5, the limit rod 703 is in the shape of "L", the limit rod 703 is perpendicular to sleeve 5, the guide rod 3 is installed on mounting bracket 2 by fixed structure 4.

[0026] As a kind of technical optimization scheme of the utility model, the limit rod 703 is fixedly connected with anti-drop ring 704, spring 705 is fixedly connected between anti-drop ring 704 and stop ring 701;The setting of anti-drop ring 704 can prevent limit rod 703 from sliding off from stop ring 701.

[0027] As a technical optimization scheme of the utility model, the fixed structure 4 includes sliding plate 401, the mounting bracket 2 is slidably connected with sliding plate 401, sliding plate 401 is clamped with mounting bracket 2 guide rod 3, mounting bracket 2 and sliding plate 401 are all equipped with cambered surface structure, the part of mounting bracket 2 and sliding plate 401 that is cambered surface structure is all installed with rubber pad 408, rubber pad 408 is in contact with guide rod 3, two guide rods 403 of the section that are T-shaped structure are installed in mounting bracket 2, sliding plate 401 is slidably connected with guide rod 403, the outside of guide rod 403 is equipped with tension spring 404, one end of tension spring 404 is fixedly connected with mounting bracket 2, the other end of tension spring 404 is fixedly connected with sliding plate 401;Mounting bracket 2 is installed on the pool wall of reservoir etc., pull plate 405 is pulled away from mounting bracket 2 direction, pull plate 405 drives sliding plate 401 to slide outward, to make the gap between sliding plate 401 and mounting bracket 2 increase, sliding plate 401 drives tension spring 404 to elongate simultaneously, then the guide rod 3 of liquid level switch is passed through the gap between sliding plate 401 and mounting bracket 2 and is moved downward, the bottom end of junction box 1 is in contact with the upper end surface of mounting bracket 2, then pull plate 405 is loosened, tension spring 404 resets and drives sliding plate 401 to slide towards mounting bracket 2, mounting bracket 2 and sliding plate 401 are equipped with cambered surface structure and can clamp guide rod 3, make guide rod 3 fasten, and installation and disassembly are more convenient.

[0028] As a technical optimization scheme of the utility model, the upper end surface of mounting bracket 2 and sliding plate 401 is all fixedly connected with clamp 402 of the section that is arc-shaped structure, the bottom end of junction box 1 is fixedly connected with connecting sleeve 409, clamp 402 is in contact with connecting sleeve 409, two lugs 410 are fixedly connected on connecting sleeve 409, lug 410 is engaged with the recess on clamp 402;Sliding plate 401 drives the clamp 402 fixedly connected with sliding plate 401 to move towards the clamp 402 on mounting bracket 2, to clamp connecting sleeve 409 on junction box 1 through two clamps 402, and the two lugs 410 on connecting sleeve 409 are engaged with the recess on two clamps 402 respectively, prevent connecting sleeve 409 from driving junction box 1 and guide rod 3 to rotate, to further increase the stability and firmness of liquid level switch installation, make liquid level switch work more stably, so as to realize the liquid level control of reservoir.

[0029] As a technical optimization scheme of the utility model, pull plate 405 is installed on sliding plate 401, connecting block 406 is fixedly connected on pull plate 405, screw rod 407 is threadedly connected on connecting block 406, screw rod 407 is inserted with one of guide rods 403;Turn screw rod 407, make screw rod 407 be inserted with one of guide rods 403, to make sliding plate 401 unable to slide outward again, and then fasten guide rod 3 and the whole liquid level switch equipment.

[0030] As a technical optimization scheme of the utility model, the junction box 1 is provided with a warning light 8, and the mounting frame 2 is in the shape of L; the warning light 8 is arranged to facilitate the liquid level switch device to send prompt information to the worker through the warning light 8.

[0031] The utility model discloses a sleeve 5 is set up in the outside of guide rod 3 first in using, make the top end of sleeve 5 and the nut 9 of guide rod 3 top end resist each other, then another nut 9 is connected with guide rod 3 thread, thereby through two nuts 9 clamping sleeve 5, make sleeve 5 installation stable, sleeve 5 adopts the material of non -insulating material, avoid interfering the signal transmission between the magnetic steel in floating ball body 6 and the reed tube inside guide rod 3, the setting of sleeve 5 is good to the protection of guide rod 3, and convenient to install adjustment structure 7 simultaneously, make floating ball body 6 position adjustment more convenient, then according to the scale strip 706 on sleeve 5 quick determination corresponding floating ball body 6's installation position, then adjust the position of the stop ring 701 at both ends of floating ball body 6 first, when operating, first pull out the limit rod 703 on the stop ring 701 at one end of floating ball body 6 outward, make limit rod 703 from the limit hole 702 on sleeve 5 slip, and limit rod 703 drives the anti -unhooking ring 704 to resist spring 705 shrink, then slide stop ring 701 on sleeve 5, when stop ring 701 adjust to the appropriate position, release limit rod 703, spring 705 resets and drives limit rod 703 to be engaged into corresponding limit hole 702, thereby make the position of stop ring 701 fixed, then slide floating ball body 6 to the direction of stop ring 701, because guide rod 3 inside is installed with multiple groups of reed tube, and the installation position of floating ball body 6 is kept consistent with the position of corresponding reed tube, when floating ball body 6 slides to the appropriate position, start adjusting the position of another stop ring 701, and the distance for the sliding of floating ball body 6 is kept between the two adjacent stop rings 701, then adjust the position of other floating ball body 6 and stop ring 701 in turn, and the cooperation of limit rod 703 and limit hole 702, scale strip 706 makes the position adjustment of floating ball body 6 and stop ring 701 more convenient and flexible, and the precision of adjustment is higher, then install mounting bracket 2 on the pool wall of reservoir etc., pull out pull plate 405 to the direction of deviating from mounting bracket 2, pull plate 405 drives sliding plate 401 to slide outward, thereby make the gap between sliding plate 401 and mounting bracket 2 increase, and sliding plate 401 drives tension spring 404 to elongate, then make guide rod 3 of liquid level switch pass through the gap between sliding plate 401 and mounting bracket 2 and move downward, make the bottom end of junction box 1 and the upper end surface of mounting bracket 2 resist each other, then release pull plate 405, and tension spring 404 resets and drives sliding plate 401 to slide towards mounting bracket 2, and the arc surface structure on mounting bracket 2 and sliding plate 401 can clamp guide rod 3, then rotate screw rod 407, make screw rod 407 and one of guide rod 403 insert, thereby make sliding plate 401 unable to slide outward again, and then quickly fix guide rod 3 and the whole liquid level switch equipment, and make the installation and dismounting of liquid level switch equipment more flexible and convenient.The sliding plate 401 slides and drives the clamp 402 fixedly connected with the sliding plate 401 to move towards the clamp 402 on the mounting frame 2, so as to clamp the connecting sleeve 409 on the junction box 1 through the two clamps 402, and the two protrusions 410 on the connecting sleeve 409 are respectively clamped with the grooves on the two clamps 402, so as to prevent the connecting sleeve 409 from driving the junction box 1 and the guide rod 3 to rotate, thereby further increasing the stability and firmness of the installation of the liquid level switch, and making the liquid level switch work more stably, so as to realize the liquid level control of the water storage pool; the guide rod 403 is arranged to guide the sliding plate 401, so as to prevent the sliding plate 401 from sliding off the mounting frame 2, thereby increasing the stability of the sliding plate 401 when sliding;

[0032] The rubber pad 408 is arranged to increase the friction between the mounting frame 2, the sliding plate 401 and the guide rod 3, so as to make the installation of the guide rod 3 more stable; when the liquid level rises, the floating ball body 6 floats up and abuts against the stop ring 701 above the floating ball body 6, and when the liquid level drops, the floating ball body 6 drops and abuts against the stop ring 701 below the floating ball body 6; since the magnetic steel is arranged in the floating ball body 6, when the floating ball body 6 floats up and down, the magnetic coupling between the magnetic steel in the floating ball body 6 and the reed switch arranged at the corresponding position in the guide rod 3 is generated, so as to make the contacts in the reed switch close or open; the closing or opening of the reed switch changes the total resistance in the liquid level switch device, and the changed resistance signal is converted into a standard current signal by the transmitter in the junction box 1, so as to convert the change of the liquid level position into an electric signal, and the remote monitoring, display and control of the liquid level can be realized through the monitoring and processing of the electric signal, and the warning light 8 sends a prompt to the staff.

[0033] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A float type liquid level switch, comprising a junction box (1), characterized in that: A guide rod (3) is installed at the bottom end of the junction box (1), and nuts (9) are threadedly connected at both ends of the guide rod (3). A sleeve (5) is sleeved on the outside of the guide rod (3), and the two ends of the sleeve (5) respectively contact two nuts (9). A plurality of float bodies (6) are slidably connected to the sleeve (5), and an adjustment structure (7) is installed on the sleeve (5), and the adjustment structure (7) includes a stop ring (701). A plurality of stop rings (702) are slidably connected to the sleeve (5). A positioning ring (701) is provided, and a float body (6) is installed between every two stop rings (701) on the sleeve (5). A limiting rod (703) is slidably connected to the stop ring (701). A plurality of limiting holes (702) are equidistantly provided on the sleeve (5). The ends of the limiting rod (703) are engaged with the corresponding limiting holes (702). A scale bar (706) is provided on the sleeve (5). The guide rod (3) is installed on the mounting frame (2) through a fixing structure (4).

2. A float type liquid level switch according to claim 1, characterized in that: The limiting rod (703) is in an "L"-shaped structure, and the limiting rod (703) and the sleeve (5) are perpendicular to each other.

3. A float type liquid level switch according to claim 2, characterized in that: An anti-slip ring (704) is fixedly connected to the limiting rod (703), and a spring (705) is fixedly connected between the anti-slip ring (704) and the stop ring (701).

4. The float type liquid level switch according to claim 1, characterized in that: The fixed structure (4) comprises a slide plate (401), the mounting frame (2) is slidably connected to the slide plate (401), and the slide plate (401) and the mounting frame (2) clamp the guide rod (3).

5. The float type liquid level switch according to claim 4, characterized in that: The mounting frame (2) and the slide plate (401) are both provided with an arc surface structure, and the portions of the mounting frame (2) and the slide plate (401) with the arc surface structure are both provided with a rubber pad (408), and the rubber pad (408) is in contact with the guide rod (3).

6. The float type liquid level switch according to claim 5, characterized in that: Two guide rods (403) with T-shaped cross sections are installed in the mounting frame (2), and the slide plate (401) is slidably connected to the guide rods (403).

7. The float type liquid level switch according to claim 6, characterized in that: The guide rod (403) is externally sleeved with a tension spring (404), one end of the tension spring (404) is fixedly connected to the mounting frame (2), and the other end of the tension spring (404) is fixedly connected to the slide plate (401).

8. The float type liquid level switch according to claim 1, characterized in that: The upper end surfaces of the mounting frame (2) and the slide plate (401) are both fixedly connected with a clamp (402) having an arc-shaped cross-section, and the bottom end of the junction box (1) is fixedly connected with a connecting sleeve (409), the clamp (402) abuts against the connecting sleeve (409), and the connecting sleeve (409) is fixedly connected with two protrusions (410), and the protrusions (410) are engaged with grooves on the clamp (402).

9. The float type liquid level switch according to claim 8, characterized in that: A pull plate (405) is installed on the slide plate (401), a connecting block (406) is fixedly connected to the pull plate (405), a screw rod (407) is threadedly connected to the connecting block (406), and the screw rod (407) is plugged into one of the guide rods (403).

10. The float type liquid level switch according to claim 1, characterized in that: A warning light (8) is installed on the junction box (1), and the mounting frame (2) is in an "L"-shaped structure.

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