Vertical float switch

Abstract

The invention discloses a vertical float switch, which is characterized in that a body is provided with an accommodating cavity and a chamber, the accommodating cavity accommodates a fixed plate, and the fixed plate is provided with a positioning column; the rocker arm rotates relative to the fixing plate and comprises two supporting legs, first magnets are fixed to the two supporting legs respectively, and the polarities of the opposite faces of the two first magnets are the same; the lower end of the suspender is matched with the floating ball; the microswitch is provided with a button and a positioning hole matched with the positioning column; the microswitch is located between the support and the fixing plate. The left end of the rocker is rotationally connected with the support, the right end of the rocker is matched with the supporting leg, and the button is located on the motion trail of the rocker; the rocker arm fixes the two first magnets and is matched with the second magnet of the suspender to form compensation superposition, and the rocker structure forms a lever effect, so that the safety coefficient of closing the microswitch can be effectively increased, the product is more reliable, the number of the whole parts is small, the installation is more convenient, and the structure is simpler.

Description

Technical Field

[0001] The invention relates to the technical field of float switches, and in particular to a vertical float switch. Background Art

[0002] The float switch is used to control the automatic start and stop of the water pump by detecting the liquid level. In the prior art, there are single magnet structure and double magnet structure.

[0003] Single magnet structure: one magnet on each side, the lower magnet is driven upward by the suspension rod, attracting the upper magnet, and driving the rocker arm to close the micro switch. However, the problems with this structure are: 1. When the lower magnet moves upward, it will be affected by the fluctuation of the water surface, causing the magnet surface to tilt, which in turn causes the magnetic force to be greatly reduced, insufficient to attract the upper magnet, causing the product to fail; 2. The upper and lower magnets are attracted in the direction of movement, and the magnetic force is the largest when the magnets are disconnected, resulting in a large weight for the required float, which requires additional volume of the float and counterweights, resulting in a large product volume and high cost.

[0004] Double magnet structure: Two upper magnets are fixed on both sides of the rocker arm. The polarities of the opposite surfaces of the two upper magnets are the same. The lower magnet is driven upward by the suspension rod to attract one of the upper magnets, causing the rocker arm to rotate, which drives the rocker arm to close the micro switch. However, the problems with this structure are: 1. The rocker arm directly drives the micro switch, which has a low safety factor and is prone to misoperation; 2. The fixing method of the micro switch is too simple. During operation, the micro switch is prone to shaking, affecting the operation of the micro switch. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is how to improve the safety factor and assembly stability of the micro switch. To this end, a vertical float switch comprises:

[0006] A body, wherein the body is provided with a receiving cavity and a chamber, the chamber is open downward, the receiving cavity accommodates a fixing plate, and the fixing plate is provided with a positioning column;

[0007] A rocker arm, the rocker arm is accommodated in the accommodating chamber, the rocker arm rotates relative to the fixing plate, the rocker arm comprises two legs, the two legs are respectively fixed with first magnets, the polarities of the opposite surfaces of the two first magnets are the same, and the two first magnets are respectively located on both sides of the outer wall of the chamber;

[0008] A suspension rod, wherein the lower end of the suspension rod cooperates with the floating ball, the upper end of the suspension rod extends to the chamber, and the upper end of the suspension rod is fixed with a second magnet;

[0009] A micro switch, the micro switch is accommodated in the accommodating cavity, the micro switch is provided with a button, and the micro switch is also provided with a positioning hole matched with the positioning column;

[0010] A bracket, the bracket is accommodated in the accommodating cavity, the bracket abuts against a side of the micro switch away from the positioning column, so that the micro switch is located between the bracket and the fixing plate;

[0011] A seesaw, the seesaw is accommodated in the accommodating cavity, the left end of the seesaw is rotatably connected to the bracket, the right end of the seesaw is matched with one of the legs of the rocker arm, and the button is located on the movement track of the seesaw;

[0012] The float switch has a first state and a second state. In the first state, the second magnet does not enter the chamber and cooperates with the two first magnets; in the second state, the second magnet enters the chamber, and the second magnet cooperates with the first magnets to drive the seesaw to move and press the button.

[0013] The bracket is provided with a fixing hole, the fixing hole is provided with a first inclined surface, the bottom surface of the accommodating cavity is provided with a fixing column, the fixing column is provided with a second inclined surface, the first inclined surface cooperates with the second inclined surface, and when the screw passes through the fixing hole and cooperates with the fixing column, the first inclined surface contacts with the second inclined surface to generate an extrusion force toward the micro switch.

[0014] The outer side wall of the positioning column is provided with convex ribs, and the bottom surface of the positioning column is provided with supporting ribs.

[0015] The fixing plate is provided with a first limiting rib on the side facing the micro switch, and the first limiting rib abuts against the side surface of the micro switch; the bottom surface of the accommodating cavity is provided with a supporting plate, one side of the supporting plate is connected to the fixing plate, and the supporting plate abuts against the bottom surface of the micro switch.

[0016] One of the rocker arm and the fixed plate is provided with a first rotating shaft portion, and the other of the rocker arm and the fixed plate is provided with a first rotating shaft hole that cooperates with the first rotating shaft portion; or, one of the rocker plate and the bracket is provided with a second rotating shaft portion, and the other of the rocker plate and the bracket is provided with a second rotating shaft hole that cooperates with the second rotating shaft portion.

[0017] One of the bracket and the bottom surface of the accommodating cavity is provided with a protrusion, and the other of the bracket and the bottom surface of the accommodating cavity is provided with a groove. The protrusion cooperates with the groove to form a wire pressing groove, and the wire passes through the wire pressing groove to be electrically connected with the micro switch.

[0018] The bracket is provided with a limiting groove, and the right end of the rocker passes through the limiting groove.

[0019] One of the legs is provided with a fixed cavity, the right end of the rocker extends to the fixed cavity, and the right end of the rocker is located on the movement track of the top surface of the inner wall of the fixed cavity.

[0020] A through hole is provided on the side of the chamber, and an elastic buckle is provided on the suspension rod, and the elastic buckle cooperates with the through hole.

[0021] The suspension rod is provided with a second limiting rib, and a limiting piece is fixed to the suspension rod, and the limiting piece abuts against the second limiting rib.

[0022] The accommodating cavity and the chamber are independent of each other.

[0023] The technical solution of the present invention has the following advantages:

[0024] 1. The present invention provides a vertical float switch. First, the rocker arm fixes two first magnets, which cooperate with the second magnet of the suspension rod to form a compensating superposition. At the same time, a seesaw structure is added to form a lever effect, which can effectively increase the safety factor of the closed micro switch and make the product more reliable. The rocker arm and the micro switch are respectively located on both sides of the fixed plate to form a fixing effect, which is convenient to install and fix, and has a simple structure. The micro switch is fastened by the bracket to prevent the micro switch from shaking. At the same time, the bracket also cooperates with the seesaw to form the rotation of the seesaw. The bracket realizes a combination of multiple functions, which greatly reduces the number of parts, makes installation more convenient, and has a more streamlined structure.

[0025] 2. In the vertical float switch provided by the present invention, the first inclined surface and the second inclined surface contact to generate an extrusion force, so that the bracket moves toward the micro switch, thereby pressing the micro switch to prevent the micro switch from shaking. In addition, a cavity that matches the micro switch can also be formed by injection molding in the accommodating cavity, which can also form a fixing effect of the micro switch, but this method will increase the processing difficulty and assembly efficiency.

[0026] 3. In a vertical float switch provided by the present invention, the convex ribs of the positioning column are arranged to form a tight fit with the micro switch to prevent the micro switch from shaking. Support ribs are arranged under the positioning column to limit the micro switch from moving toward the bottom surface of the positioning column.

[0027] 4. The present invention provides a vertical float switch, in which the first limit rib forms a limit support for the micro switch, and the support plate is used to support the bottom surface of the micro switch. At the same time, the support plate is connected to the fixed plate to increase the strength between the two. Here, the support plate and the fixed plate are vertically connected.

[0028] 5. In the vertical float switch provided by the present invention, the rocker arm rotates relative to the fixed plate, and the rocker plate rotates relative to the bracket, thereby realizing a rotational relationship. Here, the rotational connection method can also add a pin fixing structure.

[0029] 6. The present invention provides a vertical float switch, in which the protrusion cooperates with the groove to form a wire pressing groove, so that the wire can be fixed to prevent the wire from falling out during the switching process and affecting the performance of the product. The bracket here can also realize the wire pressing function to further reduce the number of parts.

[0030] 7. The vertical float switch provided by the present invention has a limit groove, which limits the front and rear displacement of the seesaw. At this time, the seesaw can only rotate, thereby improving the coordination stability between the seesaw and the rocker arm and increasing the safety factor of the closed micro switch.

[0031] 8. In a vertical float switch provided by the present invention, the fixed cavity cooperates with the right end of the seesaw to form an effect in which the rocker arm drives the seesaw to move.

[0032] 9. The vertical float switch provided by the present invention has an elastic clip that limits the hanging rod from falling off. During installation and disassembly, the elastic clip can rely on the structural feature of the elastic clip to produce a restorable deformation to realize its function, which is convenient for customers to install, disassemble and maintain.

[0033] 10. In the vertical float switch provided by the present invention, the second limiting rib cooperates with the limiting member to limit the limiting member from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 A schematic structural diagram of a vertical float switch provided by the present invention;

[0036] Figure 2 A cross-sectional view of a vertical float switch provided by the present invention;

[0037] Figure 3 A schematic diagram of the partial structure of a vertical float switch provided by the present invention;

[0038] Figure 4 A schematic diagram of the structure of the base, micro switch and rocker arm provided by the present invention;

[0039] Figure 5 A schematic diagram of the structure of the base and the rocker arm provided by the present invention;

[0040] Figure 6 Another perspective structural diagram of the base and rocker arm provided by the present invention;

[0041] Figure 7 A schematic diagram of the structure of the micro switch provided by the present invention in the disconnected state;

[0042] Figure 8 A structural schematic diagram of the working state of the micro switch provided by the present invention;

[0043] Fig. 9 for Figure 3 A cross-sectional view of

[0044] Fig.10 A schematic diagram of the structure of the support provided by the present invention;

[0045] Fig.11 A schematic diagram of the structure of the second state provided by the present invention;

[0046] Fig.12 This is a schematic structural diagram of the first state provided by the present invention.

[0047] Description of reference numerals:

[0048] 11. body; 12. fixing plate; 13. micro switch; 14. rocker arm; 15. suspension rod; 16. floating ball; 17. bracket; 18. rocker plate; 19. base; 20. upper cover; 21. first rotating shaft; 22. first rotating shaft hole; 23. second rotating shaft; 24. second rotating shaft hole; 25. bump; 26. groove; 27. wire pressing groove; 28. stopper; 29. ​​rubber plug; 30. wire; 111. accommodating chamber; 112. chamber; 113. fixing column; 1 14. Support plate; 115. Wiring cavity; 121. Positioning column; 122. First limiting rib; 131. Positioning hole; 132. Button; 141. Support foot; 142. First magnet; 151. Second magnet; 152. Elastic buckle; 153. Second limiting rib; 171. Fixing hole; 172. Positioning groove; 1121. Through hole; 1211. Protruding rib; 1212. Support rib; 1131. Second inclined surface; 1411. Fixing cavity; 1711. First inclined surface. DETAILED DESCRIPTION

[0049] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0053] Example 1

[0054] This embodiment provides a vertical float switch, as shown in the attached Figure 1-Figure 12 As shown, including:

[0055] The body 11 is provided with a receiving cavity 111 and a chamber 112. The receiving cavity 111 accommodates a fixing plate 12. Here, one end of the fixing plate 12 is connected to the bottom surface of the receiving cavity 111, and the other end of the fixing plate 12 extends upward. The fixing plate 12 is provided with a positioning column 121. Here, the positioning column 121 is specifically located on the left side of the fixing plate 12. The positioning column 121 is used to cooperate with the micro switch 13. There are two positioning columns 121, and the two positioning columns 121 are diagonally arranged. The positioning columns 121 extend horizontally toward one side of the micro switch 13. The chamber 112 opens downward. The chamber 112 is specifically an internal structure of a rectangular parallelepiped, and the rectangular parallelepiped part extends into the receiving cavity 111, and the rest extends to the outside through the bottom surface of the receiving cavity 111.

[0056] The rocker arm 14 is accommodated in the accommodating chamber 111. The rocker arm 14 is U-shaped. The rocker arm 14 rotates relative to the fixed plate 12, and the rocker arm 14 cooperates with the right side surface of the fixed plate 12 to form a rotation, that is, the micro switch 13 cooperates with the left side surface of the fixed plate 12, and the rocker arm 14 cooperates with the right side surface of the fixed plate 12. The rocker arm 14 includes two legs 141, and the two legs 141 are respectively fixed with a first magnet 142. The polarities of the opposite surfaces of the two first magnets 142 are the same. The opposite surfaces specifically refer to the surfaces facing each other, for example, they can both be N poles or S poles. The two first magnets 142 are respectively located on both sides of the outer wall of the chamber 112. One of the legs 141 is located on the front side, and the other leg 141 is located on the rear side.

[0057] The suspension rod 15, the lower end of the suspension rod 15 cooperates with the float 16, when the float 16 moves, the suspension rod 15 also moves accordingly, this is the prior art, so it will not be described in detail. The upper end of the suspension rod 15 extends to the chamber 112, and a second magnet 151 is fixed to the upper end of the suspension rod 15. The second magnet 151 can be fixed on the top surface of the suspension rod 15, and the second magnet 151 can also be fixed on the part of the suspension rod 15 close to the top surface. Those skilled in the art can adjust the position of the second magnet 151 according to actual needs.

[0058] The micro switch 13 is accommodated in the accommodating chamber 111. The micro switch 13 forms a signal transmission. When the liquid reaches the preset water level, the signal can be transmitted to control the automatic start and stop of the water pump. The micro switch 13 is provided with a button 132, and the position of the button 132 here is located on the top surface of the micro switch 13. The micro switch 13 is also provided with a positioning hole 131 that cooperates with the positioning column 121. The number of the positioning holes 131 here is two, and the two positioning holes 131 are diagonally arranged. It should also be noted that when a force is applied to the button 132, the button 132 will move toward the inside of the micro switch 13 to achieve the signal transmission effect. On the contrary, when the force applied to the button 132 disappears, the button 132 will automatically reset. This is common sense of the micro switch 13, so it will not be described in detail.

[0059] The bracket 17 is accommodated in the accommodating cavity 111, the bracket 17 abuts against the side of the micro switch 13 away from the positioning column 121, the right side of the micro switch 13 cooperates with the positioning column 121, and the left side of the micro switch 13 abuts against the right side of the bracket 17, so that the micro switch 13 is located between the bracket 17 and the fixing plate 12, forming a clamping and fixing effect to prevent the micro switch 13 from shaking.

[0060] The seesaw 18 is accommodated in the accommodating cavity 111. The left end of the seesaw 18 is rotatably connected to the bracket 17, and the right end of the seesaw 18 cooperates with one of the legs 141 of the rocker arm 14. In this embodiment, the right end of the seesaw 18 cooperates with the leg 141 located at the front side. In addition, the right end of the seesaw 18 can also cooperate with the leg 141 located at the rear side. At this time, the seesaw 18 is located above the button 132. When the seesaw 18 rotates relative to the bracket 17, the button 132 is located on the movement trajectory of the seesaw 18. The distance from the button 132 to the rotation connection between the left end of the seesaw 18 and the bracket 17 is L1, and the distance from the rotation connection between the left end of the seesaw 18 and the bracket 17 to the right end of the seesaw 18 and the front leg 141 is L2, L2>L1, forming a labor-saving effect. By adding the seesaw 18 to form a lever structure, the required pressure can be reduced. Since the pressure is generated by magnetic force, the magnetic force can be reduced. On the one hand, the volume of the magnet can be reduced, thereby reducing the volume of the entire product and saving costs. On the other hand, since the required magnetic force is reduced, the required disconnection force of the float 16 switch is reduced. The disconnection force of the float 16 switch is determined by the weight of the float 16, so the volume and weight of the float 16 can be effectively reduced.

[0061] The float switch has a first state and a second state. In the first state, the second magnet 151 does not enter the chamber 112 to cooperate with the two first magnets 142. Here, the first state specifically refers to that the liquid level has not reached the preset water level. In the second state, the second magnet 151 enters the chamber 112, and the second magnet 151 cooperates with the first magnet 142 to drive the seesaw 18 to move to press the button 132 and control the water pump to stop working. Here, the second magnet 151 specifically cooperates with the first magnet 142 located at the front side.

[0062] First, the rocker arm 14 fixes two first magnets 142, and cooperates with the second magnet 151 of the suspension rod 15 to form a compensating superposition. At the same time, the seesaw 18 structure is added to form a lever effect, which can effectively increase the safety factor of closing the micro switch 13, making the product more reliable. The rocker arm 14 and the micro switch 13 are respectively located on both sides of the fixed plate 12 to form a fixing effect, which is convenient for installation and fixing, and has a simple structure. Through the bracket 17, the micro switch 13 is fastened to prevent the micro switch 13 from shaking. At the same time, the bracket 17 also cooperates with the seesaw 18 to form the rotation of the seesaw 18. The bracket 17 realizes a combination of multiple functions, which greatly reduces the number of parts, making installation more convenient and the structure more streamlined. When the second magnet 151 moves downward, the upper end of the second magnet 151 will have a reverse force with the first magnet 142, so that the reset of the rocker arm 14 does not only rely on the elastic force of the micro switch 13.

[0063] Specifically, as attached Figure 3-Figure 10As shown, the bracket 17 is provided with a fixing hole 171, and the fixing hole 171 is provided with a first inclined surface 1711, and the first inclined surface 1711 is specifically located on the inner wall of the fixing hole 171. A fixing column 113 is provided on the bottom surface of the accommodating cavity 111, and the fixing column 113 is provided with a second inclined surface 1131. The first inclined surface 1711 cooperates with the second inclined surface 1131. When the screw passes through the fixing hole 171 and cooperates with the fixing column 113, the first inclined surface 1711 contacts with the second inclined surface 1131 to generate an extrusion force toward the micro switch 13. In a vertical float 16 switch provided by the present invention, the first inclined surface 1711 contacts with the second inclined surface 1131 to generate an extrusion force, so that the bracket 17 will move toward one side of the micro switch 13, thereby pressing the micro switch 13 to prevent the micro switch 13 from shaking. Here, the fixing column 113 can be a truncated cone type, and the fixing hole 171 is also a truncated cone hole, forming an inclined surface matching effect. Here, a snap-fitting method can also be used, and when the bracket 17 is matched with the fixing column 113, an extrusion force toward the micro switch 13 can also be formed, but the processing accuracy is higher. In addition, a cavity that matches the micro switch 13 can also be formed by injection molding in the accommodating cavity 111, which can also form a fixing effect of the micro switch 13, but this method will increase the processing difficulty and assembly efficiency.

[0064] Specifically, as attached Figure 3-Figure 8 As shown, the outer wall of the positioning column 121 is provided with a convex rib 1211, and the convex rib 1211 extends from the bottom surface of the positioning column 121 toward the top surface of the positioning column 121. The number of the convex ribs 1211 here can be adjusted according to actual needs, and can be one, two, three, or four. In this embodiment, the number of the convex ribs 1211 is four, and the four convex ribs 1211 are distributed in a circular array. The bottom surface of the positioning column 121 is provided with a support rib 1212. The convex rib 1211 of the positioning column 121 is set to form a tight fit with the micro switch 13 to prevent the micro switch 13 from shaking. The support rib 1212 is set under the positioning column 121 to limit the micro switch 13 from moving toward the bottom surface of the positioning column 121. When the micro switch 13 is matched with the positioning column 121, the right side of the micro switch 13 is against the support rib 1212.

[0065] Specifically, as attached Figure 3-Figure 8As shown, the fixing plate 12 is provided with a first limiting rib 122 on one side facing the micro switch 13, and the first limiting rib 122 abuts against the right side of the micro switch 13. Here, the first limiting rib 122 extends vertically downward toward the bottom surface of the accommodating cavity 111, and the number of the first limiting rib 122 can be adjusted according to actual needs. A support plate 114 is provided on the bottom surface of the accommodating cavity 111, and one side of the support plate 114 is connected to the fixing plate 12, and the support plate 114 abuts against the bottom surface of the micro switch 13. The first limiting rib 122 forms a limiting support for the micro switch 13, and the support plate 114 is used for the bottom surface support of the micro switch 13. At the same time, the support plate 114 is connected to the fixing plate 12 to increase the strength between the two. Here, the support plate 114 is vertically connected to the fixing plate 12. Through the above settings, the micro switch 13 is fixed in different directions, and it also has a certain extrusion force, so that the micro switch 13 is fixed more stably and is not easy to fall off.

[0066] Specifically, the body 11 includes a base 19 and an upper cover 20, and the support plate 114 and the fixing plate 12 are both arranged on the base 19, that is, the support plate 114 and the fixing plate 12 are two features of the base 19, which are specifically injection molded. A sealing structure is also provided between the base 19 and the upper cover 20 to increase the sealing performance of the body 11. In this embodiment, the body 11 is cylindrical.

[0067] Specifically, as attached Figure 3-Figure 10 As shown, a protrusion may be provided on the right side surface of the bracket 17 , and the protrusion extends into the positioning hole 131 and cooperates with the positioning column 121 to improve the fixing effect of the micro switch 13 .

[0068] Specifically, as attached Figure 3-Figure 10As shown, one of the rocker arm 14 and the fixed plate 12 is provided with a first rotating shaft portion 21, and the other of the rocker arm 14 and the fixed plate 12 is provided with a first rotating shaft hole 22 that matches the first rotating shaft portion 21. When the rocker arm 14 is provided with the first rotating shaft portion 21, the fixed plate 12 is provided with the first rotating shaft hole 22; conversely, when the fixed plate 12 is provided with the first rotating shaft portion 21, the rocker arm 14 is provided with the first rotating shaft hole 22. In this embodiment, the right side of the fixed plate 12 is provided with the first rotating shaft portion 21, the first rotating shaft portion 21 extends horizontally toward the right side, the rocker arm 14 is provided with the first rotating shaft hole 22, and the two legs 141 are provided on both sides of the first rotating shaft portion 21 to form a front-to-back distribution, and the rocker arm 14 rotates around the first rotating shaft portion 21. Alternatively, one of the rocker plate 18 and the bracket 17 is provided with a second rotating shaft portion 23, and the other of the rocker plate 18 and the bracket 17 is provided with a second rotating shaft hole 24 that matches the second rotating shaft portion 23. When the seesaw 18 is provided with a second rotation axis portion 23, the bracket 17 is provided with a second rotation axis hole 24; conversely, when the bracket 17 is provided with a second rotation axis portion 23, the seesaw 18 is provided with a second rotation axis hole 24. In this embodiment, the bracket 17 is provided with a second rotation axis portion 23, the second rotation axis portion 23 extends toward the front side, the left end of the seesaw 18 is provided with a second rotation axis hole 24, and the seesaw 18 rotates around the second rotation axis portion 23. Here, the rotating connection method can also add a pin fixing structure.

[0069] Specifically, as attached Figure 3-Figure 10 As shown, one of the bracket 17 and the bottom surface of the accommodating cavity 111 is provided with a protrusion 25, and the other of the bracket 17 and the bottom surface of the accommodating cavity 111 is provided with a groove 26. The protrusion 25 cooperates with the groove 26 to form a wire pressing groove 27, and the wire 30 passes through the wire pressing groove 27 and is electrically connected to the micro switch 13. The protrusion 25 cooperates with the groove 26 to form the wire pressing groove 27, so that the wire 30 can play a fixing effect, preventing the wire 30 from falling out during the sequence transfer process, affecting the performance of the product. Here, the bracket 17 can also realize the wire pressing function, further reducing the number of parts. In this embodiment, the connection terminal of the micro switch 13 is located below the bottom surface of the micro switch 13.

[0070] Specifically, as attached Figure 3-Figure 10 As shown, the bracket 17 is provided with a limit slot 172, and the right end of the seesaw 18 passes through the limit slot 172. The setting of the limit slot 172 limits the front and rear displacement of the seesaw 18. At this time, the seesaw 18 can only rotate, which improves the matching stability between the seesaw 18 and the rocker arm 14, and also increases the safety factor of closing the micro switch 13. Here, the bracket 17 can also realize the limit fixing function of the seesaw 18, further reducing the number of parts.

[0071] Specifically, as attached Figure 3-Figure 10As shown, one of the legs 141 is provided with a fixing cavity 1411, specifically, the leg 141 located at the front side is provided with a fixing cavity 1411. The fixing cavity 1411 is open toward one side of the fixing plate 12, and the right end of the rocker 18 extends to the fixing cavity 1411, and the right end of the rocker 18 is located on the motion trajectory of the top surface of the inner wall of the fixing cavity 1411. The fixing cavity 1411 cooperates with the right end of the rocker 18 to form an effect that the rocker arm 14 drives the rocker 18 to move. Here, during the installation process, the rocker 18 is installed first, and then the rocker arm 14 is installed, so as to realize the limit fixation of the rocker 18, further form a limit on its rotation trajectory, and prevent the rocker 18 from falling off.

[0072] Specifically, in this embodiment, the seesaw 18 directly cooperates with the button 132 to realize the operation of the micro switch 13. In addition, the micro switch 13 can also be provided with a driving rod, the driving rod rotates relative to the micro switch 13, the button 132 is located on the movement track of the driving rod, the driving rod cooperates with the button 132, and the seesaw 18 drives the driving rod to move, thereby indirectly driving the button 132 to move.

[0073] Specifically, as attached Figure 1-Figure 6 As shown, a through hole 1121 is provided on the side of the chamber 112, and the through hole 1121 is provided on the part of the chamber 112 that exceeds the bottom surface of the accommodating cavity 111, and the through hole 1121 is connected to the chamber 112. The suspension rod 15 is provided with an elastic buckle 152, and the elastic buckle 152 cooperates with the through hole 1121 to form a limit, specifically, the upper and lower side walls of the through hole 1121 are located on the vertical movement trajectory of the elastic buckle 152. Here, the size of the through hole 1121 is larger than the size of the elastic buckle 152, so that the elastic buckle 152 moves vertically up and down in the through hole 1121. During the installation process of the suspension rod 15, the elastic buckle 152 slides along the inner wall of the chamber 112, and the elastic buckle 152 is deformed under pressure. When the elastic buckle 152 moves to the position of the through hole 1121, the elastic buckle 152 releases energy, so that the elastic buckle 152 extends into the through hole 1121, forming a limit fit between the two. Here, the elastic buckle 152 can be deformed, and when the applied force disappears, the elastic buckle 152 will return to its original state. The setting of the elastic buckle 152 prevents the suspension rod 15 from falling off, and the elastic buckle 152 can be relied on to achieve the function of restoring deformation during installation and removal, which is convenient for customers to install and remove and maintain.

[0074] Specifically, as attached Figure 1-Figure 2 As shown, the suspension rod 15 is provided with a second limiting rib 153, the suspension rod 15 is fixed with a limiting member 28, and the limiting member 28 abuts against the second limiting rib 153. The second limiting rib 153 cooperates with the limiting member 28 to limit the limiting member 28 from falling off. Here, the limiting member 28 is used to limit the float 16.

[0075] Specifically, the accommodating chamber 111 and the chamber 112 are independent of each other. The accommodating chamber 111 is formed by the base 19 and the upper cover 20, and the accommodating chamber 111 is a closed chamber 112. The chamber 112 is arranged on the base 19, and the chamber 112 opens downward, and there is no communication between the chamber 112 and the accommodating chamber 111.

[0076] Specifically, the chamber 112 is an internal structure of a rectangular parallelepiped structure, and the matching part of the suspension rod 15 and the chamber 112 is also a rectangular parallelepiped structure, forming a guiding and limiting effect to prevent the suspension rod 15 from deviating during movement.

[0077] Specifically, as attached Figure 1-Figure 2 As shown, the body 11 is further provided with a wiring cavity 115, and the wiring cavity 115 is connected with the accommodating cavity 111. After the wire 30 is connected with the micro switch 13, it passes through the wiring cavity 115 and extends to the outside. In order to improve the overall sealing effect, a rubber plug 29 is fixed at the connection between the wiring cavity 115 and the accommodating cavity 111, and the rubber plug 29 is sleeved on the wire 30. Finally, the wiring cavity 115 is sealed by filling glue in the wiring cavity 115.

[0078] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A vertical float switch, characterized in that: include: A body (11), the body (11) being provided with a receiving cavity (111) and a chamber (112), the chamber (112) opening downward, the receiving cavity (111) accommodating a fixing plate (12), and the fixing plate (12) being provided with a positioning column (121); A rocker arm (14), the rocker arm (14) being accommodated in the accommodating chamber (111), the rocker arm (14) being rotatable relative to the fixing plate (12), the rocker arm (14) comprising two legs (141), the two legs (141) being respectively fixed with a first magnet (142), the polarities of the opposite surfaces of the two first magnets (142) being the same, and the two first magnets (142) being respectively located on two sides of the outer wall of the chamber (112); A suspension rod (15), the lower end of the suspension rod (15) cooperates with the floating ball (16), the upper end of the suspension rod (15) extends to the chamber (112), and a second magnet (151) is fixed to the upper end of the suspension rod (15); A micro switch (13), the micro switch (13) being accommodated in the accommodating cavity (111), the micro switch (13) being provided with a button (132), and the micro switch (13) being further provided with a positioning hole (131) cooperating with the positioning column (121); A bracket (17), the bracket (17) being accommodated in the accommodating cavity (111), the bracket (17) being abutted against a side of the micro switch (13) away from the positioning column (121), so that the micro switch (13) is located between the bracket (17) and the fixing plate (12); A seesaw (18), the seesaw (18) being accommodated in the accommodating cavity (111), the left end of the seesaw (18) being rotatably connected to the bracket (17), the right end of the seesaw (18) being matched with one of the legs (141) of the rocker arm (14), and the button (132) being located on the movement track of the seesaw (18); The float switch has a first state and a second state. In the first state, the second magnet (151) does not enter the chamber (112) and cooperates with the two first magnets (142); in the second state, the second magnet (151) enters the chamber (112), and the second magnet (151) cooperates with the first magnet (142) to drive the seesaw (18) to move and press the button (132).

2. The vertical float switch according to claim 1, characterized in that: The bracket (17) is provided with a fixing hole (171), the fixing hole (171) is provided with a first inclined surface (1711), the bottom surface of the accommodating cavity (111) is provided with a fixing column (113), the fixing column (113) is provided with a second inclined surface (1131), the first inclined surface (1711) cooperates with the second inclined surface (1131), and when a screw passes through the fixing hole (171) and cooperates with the fixing column (113), the first inclined surface (1711) and the second inclined surface (1131) contact to generate a squeezing force toward the micro switch (13).

3. The vertical float switch according to claim 1, characterized in that: The outer wall of the positioning column (121) is provided with a convex rib (1211), and the bottom surface of the positioning column (121) is provided with a supporting rib (1212).

4. The vertical float switch according to claim 1, characterized in that: A first limiting rib (122) is provided on the side of the fixing plate (12) facing the micro switch (13), and the first limiting rib (122) abuts against the side surface of the micro switch (13); a supporting plate (114) is provided on the bottom surface of the accommodating cavity (111), and one side of the supporting plate (114) is connected to the fixing plate (12), and the supporting plate (114) abuts against the bottom surface of the micro switch (13).

5. The vertical float switch according to claim 1, characterized in that: One of the rocker arm (14) and the fixed plate (12) is provided with a first rotating shaft portion (21), and the other of the rocker arm (14) and the fixed plate (12) is provided with a first rotating shaft hole (22) that cooperates with the first rotating shaft portion (21); or, one of the rocker plate (18) and the bracket (17) is provided with a second rotating shaft portion (23), and the other of the rocker plate (18) and the bracket (17) is provided with a second rotating shaft hole (24) that cooperates with the second rotating shaft portion (23).

6. The vertical float switch according to claim 1, characterized in that: One of the bracket (17) and the bottom surface of the accommodating cavity (111) is provided with a protrusion (25), and the other of the bracket (17) and the bottom surface of the accommodating cavity (111) is provided with a groove (26). The protrusion (25) cooperates with the groove (26) to form a wire pressing groove (27), and the wire (30) passes through the wire pressing groove (27) to be electrically connected to the micro switch (13).

7. The vertical float switch according to claim 1, characterized in that: One of the legs (141) is provided with a fixed cavity (1411), the right end of the seesaw (18) extends to the fixed cavity (1411), and the right end of the seesaw (18) is located on a movement track of the top surface of the inner wall of the fixed cavity (1411).

8. The vertical float switch according to claim 1, characterized in that: A through hole (1121) is provided on the side of the chamber (112), and an elastic buckle (152) is provided on the suspension rod (15), and the elastic buckle (152) cooperates with the through hole (1121).

9. The vertical float switch according to claim 1, characterized in that: The suspension rod (15) is provided with a second limiting rib (153), and a limiting member (28) is fixed to the suspension rod (15), and the limiting member (28) abuts against the second limiting rib (153).

10. The vertical float switch according to claim 1, characterized in that: The accommodating cavity (111) and the chamber (112) are independent of each other.

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