Floating ball liquid level switch with expandable length

Abstract

The utility model discloses a floating ball liquid level switch with an expandable length, which comprises a mounting plate, a liquid level detection mechanism is arranged on the front side of the mounting plate and used for judging the liquid level to start or stop the work of equipment, and the liquid level detection mechanism comprises a mounting assembly, a liquid level detection mechanism and a liquid level detection mechanism, the utility model relates to the technical field of liquid level switches. According to the floating ball liquid level switch with the expandable length, the angle of the adjusting assembly is conveniently adjusted through the movable plate and the limiting rod, installation is convenient, when adjustment is needed, a handle is pulled to drive the limiting rod to be pulled out from the interior of a second limiting hole, and at the moment, the movable plate is rotated downwards by 90 degrees to be located between the connecting plates; and then a handle is loosened, a limiting rod can be inserted into a second limiting hole through the elastic force of a spring to fix a movable plate, then the device is installed at a proper position through an installation plate, installation can be conducted according to the condition of the container, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level switches, in particular to a float liquid level switch with expandable length. Background Art

[0002] The float level switch is a liquid level measurement control switch that starts or stops the equipment by judging the liquid level, forming an automatic control system. It is mainly composed of a rod and a float. When the liquid level of the container changes, the float moves up and down.

[0003] The existing float liquid level switch with expandable length still has the following problems. The existing device generally directly installs the device on the top surface of the container to judge the height of the liquid level to start or stop the operation of the equipment. For example, Chinese patent CN219892110U discloses a float liquid level switch. When the utility model is used, the positioning bolt is screwed into the positioning bolt hole and abuts against the positioning slide groove, so that the limit sleeve is fixed at an appropriate height as a whole, which increases the practicality of the device and reduces the manufacturing cost of customized molds.

[0004] However, when there is no cover on the top surface of the container, the above technical device requires external connectors to install the device, which is inconvenient to use, has great restrictions on the installation position, and the adjustable length of the float is short, so the practicality is average. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a float liquid level switch with expandable length, which solves the problems of the existing float liquid level switch with expandable length. When there is no cover on the top surface of the container, an external connector is required to install the device, which is inconvenient to use and has great restrictions on the installation position. In addition, the adjustable length of the float is short, and the practicality is generally poor.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a float liquid level switch with expandable length, including a mounting plate, a liquid level detection mechanism is arranged on the front side of the mounting plate for judging the height of the liquid level to start or stop the operation of the device, and the liquid level detection mechanism includes:

[0007] The mounting assembly is arranged to be installed according to the container conditions, the mounting assembly comprising a fixing plate fixedly mounted on the front side of the mounting plate, a groove is provided on the front side of the fixing plate, a movable plate is movably hinged inside the groove, a slide groove is provided on the front side of the movable plate, two limit rods are movably mounted inside the slide groove, springs are fixedly mounted on the opposite ends of the two limit rods, handles are fixedly mounted on the front sides of the two limit rods, two connecting plates are fixedly mounted on the bottom surface of the fixing plate, a first limit hole is provided on one side of the two connecting plates, and second limit holes are provided on the left and right sides of the groove;

[0008] The adjusting component is arranged on the top surface of the movable plate and is used for adjusting to a suitable position according to the liquid level height.

[0009] Preferably, one end of the two limiting rods away from the spring both movably passes through the interior of the slide slot and extends to the interior of the second limiting hole.

[0010] Preferably, the front end of the handle movably passes through the interior of the slide groove and extends to the front side of the movable plate.

[0011] Preferably, the adjustment assembly includes a mounting tube fixedly mounted on the top surface of the movable plate, two limit grooves are provided on the inner side of the mounting tube, a fixed tube is movably mounted inside the mounting tube, two limit plates are fixedly mounted on the outer side of the fixed tube, a limit plate is fixedly mounted on the top surface of the fixed tube, an induction switch is fixedly mounted on the top surface of the limit plate, a fixing rod is fixedly mounted on the bottom surface of the limit plate, a plurality of holes are provided on the outer side of the fixing rod, a sliding tube is movably mounted on the outer side of the hole, two connecting blocks are fixedly mounted on the outer side of the sliding tube, a float body is fixedly mounted on one end of the two connecting blocks, a fixing bolt is threadedly mounted on the outer side of the sliding tube, and two notches are provided on the outer side of the fixed tube.

[0012] Preferably, outer sides of the two limiting plates are slidably mounted inside the two limiting grooves, and the bottom end of the mounting tube passes through the top surface of the movable plate and extends to the bottom surface of the movable plate.

[0013] Preferably, one end of the two connecting blocks away from the fixing rod passes through the inside of the two notches and is fixedly installed on the outside of the float body, and one end of the fixing bolt threadably passes through the outside of the sliding cylinder and extends to the inside of the plurality of insertion holes.

[0014] Beneficial Effects

[0015] The utility model provides a float liquid level switch with expandable length. Compared with the prior art, it has the following beneficial effects:

[0016] (1) The float liquid level switch with expandable length can be installed conveniently by adjusting the angle of the adjustment component through the movable plate and the limit rod. When adjustment is needed, the handle is pulled to drive the limit rod to be pulled out from the inside of the second limit hole. At this time, the movable plate is rotated downward by 90 degrees so that the movable plate is located between the connecting plates. Then, the handle is released and the limit rod is inserted into the inside of the second limit hole by the elastic force of the spring to fix the movable plate. Then, the device is installed in a suitable position through the mounting plate. It can be installed according to the conditions of the container for easy use.

[0017] (2) The float liquid level switch with expandable length can adjust the position of the float body according to the liquid level height through the provided socket and sliding cylinder. When adjustment is required, the fixing bolt is rotated to unscrew it from the inside of the socket. Then the sliding cylinder can drive the float body to move to the appropriate position through two connecting blocks. Then the fixing bolt is rotated in the opposite direction to insert it into the inside of the socket to fix the position of the sliding cylinder, thereby increasing the adjustment range of the float body and improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional appearance schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the side cross-sectional three-dimensional appearance of the installation component of the utility model;

[0020] Figure 3 This is a front cross-sectional three-dimensional appearance schematic diagram of the installation assembly of the utility model;

[0021] Figure 4 It is a schematic diagram of the side cross-sectional three-dimensional appearance of the utility model;

[0022] Figure 5 For the utility model Figure 4 The enlarged appearance diagram at A in the middle;

[0023] Figure 6 It is a partial cross-sectional three-dimensional appearance schematic diagram of the utility model.

[0024] In the figure: 1-mounting plate, 2-liquid level detection mechanism, 21-mounting assembly, 211-fixed plate, 212-groove, 213-movable plate, 214-connecting plate, 215-limiting rod, 216-first limiting hole, 217-handle, 218-slide, 219-spring, 2110-second limiting hole, 22-adjusting assembly, 221-limiting plate, 222-fixing cylinder, 223-fixing rod, 224-jack, 225-sliding cylinder, 226-float body, 227-connecting block, 228-sensing switch, 229-limiting plate, 2210-limiting groove, 2211-notch, 2212-fixing bolt, 2213-mounting cylinder. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides two technical solutions:

[0027] Figure 1-Figure 3 The first embodiment is shown: a float liquid level switch with an extendable length, comprising a mounting plate 1, a liquid level detection mechanism 2 is arranged on the front side of the mounting plate 1 for judging the height of the liquid level to start or stop the operation of the device, and the liquid level detection mechanism 2 comprises:

[0028] The mounting assembly 21 is arranged to be installed according to the container conditions. The mounting assembly 21 includes a fixed plate 211 fixedly mounted on the front side of the mounting plate 1. A groove 212 is provided on the front side of the fixed plate 211. A movable plate 213 is movably hinged inside the groove 212. A slide groove 218 is provided on the front side of the movable plate 213. Two limit rods 215 are movably installed inside the slide groove 218. Springs 219 are fixedly installed on the opposite ends of the two limit rods 215. Handles 217 are fixedly installed on the front sides of the two limit rods 215. Two connecting plates 214 are fixedly installed on the bottom surface of the fixed plate 211. A first limit hole 216 is provided on one side of the two connecting plates 214. Second limit holes 2110 are provided on the left and right sides of the groove 212. The size specifications of the second limit hole 2110 and the first limit hole 216 are adapted.

[0029] The adjusting component 22 is arranged on the top surface of the movable plate 213 and is used to adjust to a suitable position according to the liquid level height. The ends of the two limit rods 215 away from the spring 219 are movable through the interior of the slide groove 218 and extend to the interior of the second limit hole 2110, and the elastic force of the spring 219 can push the two limit rods 215 into the interior of the second limit hole 2110 to fix the movable plate 213. The front end of the handle 217 is movable through the interior of the slide groove 218 and extends to the front side of the movable plate 213, and pulling the handle 217 can drive the two limit rods 215 to be pulled out from the interior of the second limit hole 2110 for adjustment.

[0030] The movable plate 213 and the limiting rod 215 are provided to facilitate the adjustment of the angle of the adjustment component 22 for easy installation. When adjustment is required, the handle 217 is pulled to drive the limiting rod 215 to be pulled out from the inside of the second limiting hole 2110. At this time, the movable plate 213 is rotated downward by ninety degrees so that the movable plate 213 is located between the connecting plates 214. Then, the handle 217 is released and the limiting rod 215 is inserted into the inside of the second limiting hole 2110 through the elastic force of the spring 219 to fix the movable plate 213. Then, the device is installed in a suitable position through the mounting plate 1. It can be installed according to the situation of the container for easy use.

[0031] Figure 1-Figure 6A second embodiment is shown, which is mainly different from the first embodiment in that the adjustment component 22 includes a mounting cylinder 2213 fixedly mounted on the top surface of the movable plate 213, two limiting grooves 2210 are provided on the inner side of the mounting cylinder 2213, a fixed cylinder 222 is movably mounted inside the mounting cylinder 2213, two limiting plates 221 are fixedly mounted on the outer side of the fixed cylinder 222, a limiting disk 229 is fixedly mounted on the top surface of the fixed cylinder 222, an induction switch 228 is fixedly mounted on the top surface of the limiting disk 229, a fixed rod 223 is fixedly mounted on the bottom surface of the limiting disk 229, a plurality of insertion holes 224 are provided on the outer side of the fixed rod 223, and the plurality of insertion holes 224 are linearly and evenly distributed on the outer side of the fixed rod 223, a sliding cylinder 225 is movably mounted on the outer side of the insertion hole 224, two connecting blocks 227 are fixedly mounted on the outer side of the sliding cylinder 225, a floating ball body 226 is fixedly mounted on one end of the two connecting blocks 227, and the outer side of the sliding cylinder 225 The side thread is installed with a fixing bolt 2212, and two notches 2211 are provided on the outer side of the fixing cylinder 222. The outer sides of the two limit plates 221 are slidably installed in the two limit grooves 2210, and the two limit plates 221 can limit the position of the fixing cylinder 222 through the two limit grooves 2210 to prevent the fixing cylinder 222 from rotating. The bottom end of the mounting cylinder 2213 passes through the top surface of the movable plate 213 and extends to the bottom surface of the movable plate 213. The ends of the two connecting blocks 227 away from the fixing rod 223 pass through the inside of the two notches 2211 and are fixedly installed on the outside of the float body 226, and the sliding sliding cylinder 225 can drive the float body 226 to adjust its height through the two connecting blocks 227. One end of the fixing bolt 2212 threadedly passes through the outside of the sliding cylinder 225 and extends to the inside of several insertion holes 224, and the rotating fixing bolt 2212 can be inserted into the inside of several insertion holes 224 to fix the position of the sliding cylinder 225.

[0032] The position of the float body 226 can be adjusted according to the liquid level height by means of the provided socket 224 and the sliding cylinder 225. When adjustment is required, the fixing bolt 2212 is rotated to unscrew it from the inside of the socket 224. Then the sliding cylinder 225 can drive the float body 226 to move to a suitable position through the two connecting blocks 227. Then the fixing bolt 2212 is rotated in the opposite direction to insert it into the inside of the socket 224 to fix the position of the sliding cylinder 225, thereby increasing the adjustment range of the float body 226 and achieving good practicality.

[0033] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0034] When in use, when the container has no cover, rotate the fixing bolt 2212 to unscrew it from the inside of the socket 224, then the sliding cylinder 225 can drive the float body 226 to move to a suitable position through the two connecting blocks 227, and then reversely rotate the fixing bolt 2212 to insert it into the inside of the socket 224 to fix the position of the sliding cylinder 225, and then install the mounting plate 1 on the side of the container so that the adjustment component 22 is inserted into it, then the float body 226 will float on the surface of the liquid, and then the float body 226 will drive the fixing rod 223 to lift the limit plate 229 when it reaches the appropriate position. When the container is in the position, the switch can be controlled by the induction switch 228. When the container has a cover, pull the handle 217 to drive the limit rod 215 to be pulled out from the inside of the second limit hole 2110. At this time, the movable plate 213 is rotated downward by ninety degrees so that the movable plate 213 is located between the connecting plates 214. Then, release the handle 217, and the limit rod 215 will be pushed into the inside of the second limit hole 2110 by the elastic force of the spring 219 to fix the movable plate 213. Then, the mounting plate 1 is installed on the top surface of the cover so that the adjustment component 22 is inserted into the container to judge the height of the liquid level to start or stop the operation of the equipment.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include"-"comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process-method-article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process-method-article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A float liquid level switch with expandable length, comprising a mounting plate (1), Features: A liquid level detection mechanism (2) is arranged on the front side of the mounting plate (1) for judging the height of the liquid level to start or stop the operation of the device. The liquid level detection mechanism (2) comprises: The mounting assembly (21) is arranged to be mounted according to the container conditions, the mounting assembly (21) comprising a fixing plate (211) fixedly mounted on the front side of the mounting plate (1), the fixing plate (211) having a groove (212) on the front side, a movable plate (213) movably hinged inside the groove (212), a slide groove (218) on the front side of the movable plate (213), two limiting rods (215) movably mounted inside the slide groove (218), springs (219) fixedly mounted at opposite ends of the two limiting rods (215), handles (217) fixedly mounted on the front sides of the two limiting rods (215), two connecting plates (214) fixedly mounted on the bottom surface of the fixing plate (211), a first limiting hole (216) on one side of the two connecting plates (214), and second limiting holes (2110) on the left and right sides of the groove (212); The adjustment component (22) is arranged on the top surface of the movable plate (213) and is used to adjust the liquid level to a suitable position according to the liquid level.

2. A float liquid level switch with expandable length according to claim 1, Features: One end of the two limiting rods (215) away from the spring (219) is movable through the interior of the slide groove (218) and extends to the interior of the second limiting hole (2110).

3. A float liquid level switch with expandable length according to claim 1, Features: The front end of the handle (217) movably passes through the interior of the slide groove (218) and extends to the front side of the movable plate (213).

4. A float liquid level switch with expandable length according to claim 1, Features: The adjustment assembly (22) comprises a mounting tube (2213) fixedly mounted on the top surface of the movable plate (213); two limiting grooves (2210) are arranged on the inner side of the mounting tube (2213); a fixed tube (222) is movably mounted inside the mounting tube (2213); two limiting plates (221) are fixedly mounted on the outer side of the fixed tube (222); a limiting plate (229) is fixedly mounted on the top surface of the fixed tube (222); an induction switch (228) is fixedly mounted on the top surface of the limiting plate (229); and the limiting plate (22 9) is fixedly installed on the bottom surface, a fixing rod (223) is provided on the outer side of the fixing rod (223) with a plurality of insertion holes (224), a sliding cylinder (225) is movably installed on the outer side of the insertion hole (224), two connecting blocks (227) are fixedly installed on the outer side of the sliding cylinder (225), a floating ball body (226) is fixedly installed on one end of the two connecting blocks (227), a fixing bolt (2212) is threadedly installed on the outer side of the sliding cylinder (225), and two notches (2211) are provided on the outer side of the fixing cylinder (222).

5. A float liquid level switch with expandable length according to claim 4, Features: The outer sides of the two limiting plates (221) are slidably mounted inside the two limiting grooves (2210), and the bottom end of the mounting tube (2213) penetrates the top surface of the movable plate (213) and extends to the bottom surface of the movable plate (213).

6. A float liquid level switch with expandable length according to claim 4, Features: One end of the two connecting blocks (227) away from the fixing rod (223) passes through the inside of the two notches (2211) and is fixedly installed on the outside of the float body (226); one end of the fixing bolt (2212) is threadedly passed through the outside of the sliding cylinder (225) and extends to the inside of the plurality of insertion holes (224).

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