Liquid level control switch

Abstract

The utility model discloses a liquid level control switch which comprises a guide rod, and a connecting part is fixed at the upper end of the guide rod. A limiting disc is fixed to the lower end of the guide rod, the outer side face of the guide rod is slidably connected with the guide rod, and the outer side face of the guide rod is rotationally connected with a connecting rod. A clamping groove is formed in the outer side of the upper end of the connecting rod, the clamping groove and a clamping ball are connected in a clamped mode, and meanwhile the clamping ball is arranged on the outer side of the holding ring. Two groups of clamping balls are arranged, each group of clamping balls comprises two clamping balls, the clamping balls are in clamping connection with the embracing ring through reset springs, meanwhile, the two ends of the reset springs are fixed to the embracing ring and the clamping balls respectively, and a scraping plate is bonded to the inner side of the embracing ring. According to the liquid level control switch, stains on the outer side of the guide rod can be conveniently cleaned, manual cleaning is avoided, meanwhile, the problem that the stains affect transmission of magnetic force and further affect on and off of the control switch is solved, the holding ring can be conveniently mounted and dismounted, and therefore the holding ring can be conveniently cleaned and replaced.

Description

Technical Field

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

[0002] The liquid level control switch is a switch used to control the liquid level through a liquid level sensor, also called a water level switch. It is generally divided into contact type and non-contact type, and the contact type liquid level control switch is the most widely used. For example, in the patent number "CN220509918U" and the patent name "A float type liquid level control switch", the float slides vertically on the metal rod to monitor the liquid level. The limit clamp can prevent the float from falling from the metal rod and has a certain limit effect on the float. The liquid level information in the float is transmitted to the connecting part through the terminal. The connecting part is connected to other components such as the power supply, and the connecting part transmits the received liquid level information to other The device is provided with a convex ring on the metal rod, and the convex block on the outer wall of the convex ring extends outward to form a mounting plate, and a connecting seat is movably hinged through the mounting plate. The connecting seat includes a connecting seat 1 and a connecting seat 2. The connecting seat 1 is vertically arranged to realize the side installation of the liquid level switch, and the connecting seat 2 is horizontally arranged to realize the top installation of the liquid level switch. The user can choose to use different connecting seats according to the container. The connecting seat is fixed to the mounting plate by a threaded column and a nut, and the operation is convenient and the loading and unloading is convenient. When the user does not need to use the connecting seat, the user can remove the connecting seat, which is easy to use and has high practicality. However, the above structure still has the following problems in actual use:

[0003] Since the metal rod is immersed in water for a long time, a large amount of stains are easily attached to its outer wall. If it is not cleaned for a long time, it is easy to corrode the metal rod. In addition, the liquid control switch is turned on and off by magnetic force, and the accumulation of stains will also affect the conduction effect of the magnetic force, thereby weakening the magnetic force and affecting the control effect of the control switch.

[0004] Therefore, we proposed that the liquid level control switch can solve the above problems well. Utility Model Content

[0005] The purpose of the utility model is to provide a liquid level control switch to solve the problem raised by the above-mentioned background technology that a large amount of stains are easily attached to the outer wall of the metal rod in the current market. If it is not cleaned for a long time, it is easy to corrode the metal rod, and the stains will also affect the transmission effect of the magnetic force, thereby affecting the control effect of the control switch.

[0006] To achieve the above object, the utility model provides the following technical solution: a liquid level control switch, comprising a guide rod, wherein a connecting portion is fixed to the upper end of the guide rod;

[0007] The invention also comprises: a limit plate is fixed at the lower end of the guide rod, and the outer side surface of the guide rod is slidably connected to the guide rod, and the outer side surface of the guide rod is rotatably connected to the connecting rod;

[0008] A clamping groove is provided on the outer side of the upper end of the connecting rod, and a clamping connection is formed between the clamping groove and the clamping ball, and the clamping ball is arranged on the outer side of the holding ring;

[0009] The clamping balls are provided in two groups, and each group has two clamping balls, and the clamping balls are clamped and connected with the holding ring through a reset spring, and the two ends of the reset spring are respectively fixed to the holding ring and the clamping balls, and a scraper is bonded to the inner side of the holding ring.

[0010] Preferably, two groups of the holding rings are provided, and the two groups of holding rings are rotatably connected with each other, and side wings are fixed at one end of the two groups of holding rings.

[0011] Preferably, the scraper is made of rubber material, and the inner side of the scraper is tightly fitted with the outer side of the guide rod.

[0012] Preferably, a plug-in board is fixed on the inner side of the side wing, and a plug-in slot is opened on the inner side of the other group of side wings, and the plug-in slot is matched with the plug-in board.

[0013] Preferably, the plug board is arranged in a semi-cylindrical shape, and a plug hole is provided on the surface of the plug board.

[0014] Preferably, a clamping rod passes through the inner side of the plug-in slot, and the clamping rod is slidably connected to the side wing via a tension spring, and two ends of the tension spring are respectively fixed to the clamping rod and the side wing.

[0015] Preferably, the connecting part is connected to the liquid level sensor via a transmission line, and a connecting line is provided at the upper end of the connecting part, and the outer end of the connecting line is connected to an external power source and other components.

[0016] Compared with the prior art, the beneficial effects of the utility model are: the liquid level control switch not only achieves the effect of cleaning stains, but also facilitates cleaning of stains on the outside of the guide rod, avoiding manual cleaning, and also avoids the problem that stains affect the transmission of magnetic force and thus affect the opening and closing of the control switch, and is convenient for installing and disassembling the holding ring, thereby facilitating cleaning and replacement of the holding ring. The specific contents are as follows:

[0017] (1) When the liquid level drops, the float will drop on the guide rod, and the float will drop through the connecting rod to drive the holding ring to drop together, so that the holding ring can clean the guide rod through the scraper, thereby achieving the effect of cleaning stains. It is not only convenient to clean the stains on the outside of the guide rod, avoiding manual cleaning, but also avoiding the problem that the stains affect the transmission of magnetic force and thus affect the opening and closing of the control switch;

[0018] When the water level rises, the water drives the float to slide upward on the guide rod. When the water level rises to a certain position, it is monitored by the liquid level sensor in the float and then transmitted to the connection part by the transmission line. The connection part is connected to other external components such as other power supplies to achieve the control effect.

[0019] (2) By lifting the connecting rod upward, the upper end of the connecting rod is engaged with the holding ring, and the elastic force of the return spring drives the inner end of the card ball to engage with the card slot, thereby facilitating the connection between the floating ball and the holding ring;

[0020] (3) By pulling the card rod, the lower end of the card rod is separated from the plug-in board, so that the plug-in board is separated from the plug-in slot, and then the connecting rod is bent outward, so that the connecting rod drives the card slot and the card ball to separate, so that the holding ring can be removed, which makes it easier to clean and replace the holding ring;

[0021] (4) The guide rod is embraced by the holding ring, so that the holding ring drives the plug-in plate and the plug-in slot to be plugged in through the two sets of side wings, and then the tension of the tension spring drives the clamping rod to reset, so that the lower end of the clamping rod passes through the plug-in plate, thereby achieving a limiting effect, thereby achieving the installation of the holding ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0023] Figure 2 This is a left view structural diagram of the connection between the connecting rod and the floating ball of the utility model;

[0024] Figure 3 This is a side view structural diagram of the connection between the connecting rod and the floating ball of the utility model;

[0025] Figure 4 This is a schematic diagram of the main structure of the utility model when the holding ring is opened;

[0026] Figure 5 This is a schematic diagram of the rear view structure of the utility model when the holding ring is opened;

[0027] Figure 6 This is a schematic diagram of the cross-sectional structure of the connection between the card ball and the return spring of the utility model;

[0028] Figure 7 It is a schematic diagram of the top view of the structure of the connection between the holding ring and the scraper of the utility model.

[0029] In the figure: 1. guide rod; 2. connecting part; 3. limit plate; 4. floating ball; 5. holding ring; 6. scraper; 7. side wing; 8. plug-in plate; 9. plug-in slot; 10. clamping rod; 11. tension spring; 12. connecting rod; 13. clamping slot; 14. clamping ball; 15. reset spring. DETAILED DESCRIPTION

[0030] 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 in 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.

[0031] See also Figure 1-Figure 7 , the utility model provides the following technical solutions:

[0032] Embodiment 1: In order to solve the problem in the prior art that a large amount of stains are easily attached to the outer wall of the metal rod, which may corrode the metal rod if not cleaned for a long time, and the stains may also affect the transmission effect of the magnetic force, thereby affecting the control effect of the control switch, the following scheme is disclosed, including a guide rod 1, and a connecting portion 2 is fixed to the upper end of the guide rod 1; further comprising: a limit plate 3 is fixed to the lower end of the guide rod 1, and the outer side surface of the guide rod 1 is slidably connected to the guide rod 1, and the outer side surface of the guide rod 1 is rotatably connected to the connecting rod 12; a card slot is provided on the outer side of the upper end of the connecting rod 12 13, and the card slot 13 and the card ball 14 form a card connection, and the card ball 14 is arranged on the outside of the holding ring 5; there are two groups of card balls 14, and each group of card balls 14 is provided with two, and the card ball 14 is connected to the holding ring 5 through a reset spring 15, and the two ends of the reset spring 15 are respectively fixed to the holding ring 5 and the card ball 14, and the scraper 6 is bonded to the inner side of the holding ring 5, the connecting part 2 is connected to the liquid level sensor through a transmission line, and a connecting line is provided at the upper end of the connecting part 2, and the outer end of the connecting line is connected to an external power supply and other components;

[0033] By lifting the connecting rod 12 upward, the upper end of the connecting rod 12 is engaged with the holding ring 5, and the connecting rod 12 squeezes the card ball 14, so that the card ball 14 is forced to move outward, so that the connecting rod 12 can continue to move. When the connecting rod 12 drives the card slot 13 to move parallel to the card ball 14, the elastic force of the reset spring 15 drives the card ball 14 to reset, so that the inner end of the card ball 14 is engaged with the card slot 13. When the water level rises, the water drives the float 4 to slide upward on the guide rod 1. When the water level rises to a certain position, it is monitored by the liquid level sensor in the float 4, and then transmitted to the connecting part 2 by the transmission line. The connecting part 2 is connected to other external components such as other power supplies. , thereby achieving a control effect. When the liquid level drops, the float 4 will drop on the guide rod 1. The drop of the float 4 will drive the ring 5 to drop together through the connecting rod 12, so that it provides a certain power for the ring 5, and then the ring 5 drops together. The ring 5 drops, and then the inner scraper 6 fits with the guide rod 1, thereby achieving the effect of cleaning stains. In addition, the setting of the limit plate 3 can limit the float 4 to prevent the float 4 from sliding out of the guide rod 1. The above-mentioned structural setting is not only convenient for cleaning the stains on the outside of the guide rod 1, but also avoids manual cleaning. At the same time, it also avoids the problem that the stains affect the transmission of magnetic force and thus affect the opening and closing of the control switch;

[0034] Embodiment 2: Different from Embodiment 1, this embodiment facilitates cleaning and replacement of the holding ring 5. For details, refer to Figure 2-Figure 6 , there are two groups of holding rings 5, and the two groups of holding rings 5 ​​are rotatably connected, and at one end of the two groups of holding rings 5 ​​are fixed with side wings 7, the scraper 6 is made of rubber material, and the inner side of the scraper 6 is tightly fitted with the outer side of the guide rod 1, and the inner side of the side wing 7 is fixed with a plug-in board 8;

[0035] Moreover, by pulling the card rod 10, the lower end of the card rod 10 is separated from the plug-in board 8, and the ring 5 can be opened at this time, so that the two sets of side wings 7 are separated, so that the plug-in board 8 is separated from the plug-in slot 9, and then the connecting rod 12 is bent outward, so that the connecting rod 12 drives the card slot 13 and the card ball 14 to separate, so that the ring 5 can be removed, and it is convenient to clean and replace the ring 5;

[0036] Embodiment 3: Different from Embodiment 2, this embodiment facilitates the installation of the holding ring 5. For details, refer to Figure 4-Figure 7 , and the inner side of the other set of side wings 7 is provided with a plug-in slot 9, and the plug-in slot 9 is matched with the plug-in board 8, the plug-in board 8 is arranged in a semi-cylindrical shape, and the surface of the plug-in board 8 is provided with a plug-in hole, and the inner side of the plug-in slot 9 is penetrated by a clamping rod 10, and the clamping rod 10 is slidably connected with the side wing 7 through a tension spring 11, and the two ends of the tension spring 11 are respectively fixed to the clamping rod 10 and the side wing 7;

[0037] When the cleaning is completed, it is only necessary to reinstall the holding ring 5 so that the holding ring 5 embraces the guide rod 1, thereby allowing the holding ring 5 to drive the two sets of side wings 7 to move closer, and then one set of side wings 7 drives the plug-in plate 8 to be plugged into the plug-in slot 9 provided on the other set of side wings 7, and then by loosening the clamping rod 10, the clamping rod 10 can be reset by the tension of the tension spring 11, and then the lower end of the clamping rod 10 passes through the plug-in plate 8, thereby achieving the limiting effect, thereby achieving the installation of the holding ring 5.

[0038] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A liquid level control switch, comprising a guide rod (1), wherein a connecting portion (2) is fixed to the upper end of the guide rod (1); It is characterized in that Also includes: A limit plate (3) is fixed to the lower end of the guide rod (1), and the outer side surface of the guide rod (1) is slidably connected to the guide rod (1), and the outer side surface of the guide rod (1) is rotatably connected to the connecting rod (12); A clamping groove (13) is provided on the outer side of the upper end of the connecting rod (12), and a clamping connection is formed between the clamping groove (13) and the clamping ball (14), and the clamping ball (14) is arranged on the outer side of the holding ring (5); The locking balls (14) are provided in two groups, and each group of locking balls (14) is provided with two locking balls. The locking balls (14) are connected to the holding ring (5) through a reset spring (15). At the same time, the two ends of the reset spring (15) are respectively fixed to the holding ring (5) and the locking balls (14). A scraper (6) is bonded to the inner side of the holding ring (5).

2. A liquid level control switch according to claim 1, characterized in that: The holding rings (5) are provided in two groups, and the two groups of holding rings (5) are rotatably connected to each other, and a side wing (7) is fixed to one end of the two groups of holding rings (5).

3. A liquid level control switch according to claim 1, characterized in that: The scraper (6) is made of rubber material, and the inner side of the scraper (6) is tightly fitted with the outer side of the guide rod (1).

4. A liquid level control switch according to claim 2, characterized in that: A plug-in board (8) is fixed on the inner side of the side wing (7), and a plug-in slot (9) is provided on the inner side of the other set of side wings (7), and the plug-in slot (9) is matched with the plug-in board (8).

5. A liquid level control switch according to claim 4, characterized in that: The plug board (8) is arranged in a semi-cylindrical shape, and a plug hole is provided on the surface of the plug board (8).

6. A liquid level control switch according to claim 4, characterized in that: A clamping rod (10) passes through the inner side of the plug-in slot (9), and the clamping rod (10) is slidably connected to the side wing (7) via a tension spring (11), and the two ends of the tension spring (11) are respectively fixed to the clamping rod (10) and the side wing (7).

7. A liquid level control switch according to claim 1, characterized in that: The connecting part (2) is connected to the liquid level sensor via a transmission line, and a connecting line is provided at the upper end of the connecting part (2), and the outer end of the connecting line is connected to an external power source and other components.

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