Floating ball
By designing a rolling friction pair between the hemispherical support of the float body and the transmission component and the base, the problem of inconvenient disassembly and assembly of existing float valves is solved, enabling quick disassembly and assembly without special tools and improving maintenance convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AIRPLOVE(XIAMEN)ELECTRONICS CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-15
AI Technical Summary
The existing float valve is inconvenient to disassemble and assemble, especially when cleaning, maintenance and replacement are required, as special tools are needed to rotate the pin.
The design incorporates a float body, connectors, and transmission components. By utilizing the rolling friction pair between the hemispherical support and the base, the float can be easily installed and removed. The elastic component provides elastic force, allowing the exposed part of the support to automatically engage or disengage from the groove, eliminating the need for special tools.
It enables quick and easy assembly and disassembly of the float, reduces operational complexity, improves maintenance efficiency, and reduces reliance on tools.
Smart Images

Figure CN224245532U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of humidifier technology, and more specifically, to a float. Background Technology
[0002] A humidifier is a device that increases the humidity of the environment by converting liquid water into gaseous water molecules (through ultrasonic vibration, evaporation, or heating). The valve is the core component of the humidifier, which directly controls the connection or blockage of the water flow channel through physical opening and closing actions to achieve the effect of controlling the water level.
[0003] A float valve is disclosed in the prior art, which includes a valve body, a plug, and a float. The valve body has a water passage hole connecting an upper water tank and a lower water tank. The plug is slidably disposed in the lower water tank. The float includes a valve stem and a float body connected in sequence. The valve stem is rotatably connected to the lower water tank by a rotating pin, and its upper end is embedded in the plug. Specifically, when the water level in the lower water tank rises, the float body rises and drives the valve stem to rotate. The upper end of the valve stem drives the plug to move upward to block the water passage hole. When the water level in the lower water tank drops, the float body falls and drives the valve stem to rotate in the opposite direction. The upper end of the valve stem drives the plug to move downward to open the water passage hole. Thus, the float valve can achieve the effect of controlling the connection or blockage of the water flow channel.
[0004] However, the rotating pin is often fixed with irregularly shaped screws, which require a special screwdriver to disassemble. This makes disassembly and assembly inconvenient in scenarios where the float needs to be removed for cleaning, maintenance, or replacement. Utility Model Content
[0005] The purpose of this utility model is to provide a float, which solves the technical problem of how to conveniently assemble and disassemble the float.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.
[0007] This utility model provides a float, comprising: a float body; a connector connected to the float body, having a top block at its top and an installation groove extending through the connector in a first horizontal direction, the top block, the installation groove, and the float body being arranged sequentially in a second horizontal direction, wherein the second horizontal direction is not parallel to the first horizontal direction; and a transmission assembly comprising a sleeve, supports, and an elastic element, wherein the sleeve is fixed in the installation groove and is a hollow tube extending along the first horizontal direction, with a first opening and a second opening at its two ends, respectively; two supports are provided and are movably disposed within the sleeve along the first horizontal direction; and the elastic element is located between the two supports and is used to provide elastic force to push against the two supports, so that the two supports are partially exposed outside the first opening and the second opening, respectively, and the exposed portions of the supports are located outside the installation groove and are hemispherical.
[0008] In some embodiments of this application, the support member has a spherical structure, the diameter of the two supports is larger than the diameter of the first opening and the diameter of the second opening, respectively, and the elastic member is a spring, with its two ends connected to the two supports respectively.
[0009] In some embodiments of this application, the two supports are respectively a first support and a second support; the transmission assembly further includes a positioning sleeve, which is movably inserted into the sleeve along the first horizontal direction and located between the two supports. The first end of the positioning sleeve abuts against the first support, and its second end has a cylindrical opening communicating with its interior; the elastic element includes a first spring and a second spring, and the width of the first spring is smaller than the width of the second spring; the first spring is installed in the positioning sleeve, one end of which is connected to the end wall of the first end of the positioning sleeve, and the other end of which passes through the cylindrical opening of the second end of the positioning sleeve and is connected to the second support; the second spring is located between the positioning sleeve and the second support, one end of which is connected to the end face of the second end of the positioning sleeve, and the other end of which is connected to the second support.
[0010] In some embodiments of this application, both the first support and the second support are spherical structures, and the diameter of the ball in the first support is larger than the diameter of the first opening, and the diameter of the ball in the second support is larger than the diameter of the second opening; a ball groove is provided on the end wall of the second end of the positioning sleeve, the ball groove faces the first support and fits against the first support.
[0011] In some embodiments of this application, the connector includes a body and a cover plate. The body has a mounting groove, the top of the mounting groove has a guide groove extending along the first horizontal direction, the bottom of the mounting groove is open, the cover plate is connected to the body to close the bottom of the mounting groove, and the cover plate has a protruding insert extending into the mounting groove. The sleeve has a guide strip that convexly and concavely engages with the guide groove and a slot that convexly and concavely engages with the insert to be fixed in the mounting groove.
[0012] In some embodiments of this application, the guide groove extends from one end of the mounting groove in the first horizontal direction and its length is less than the length of the mounting groove; the guide strip extends from one end of the sleeve in the first horizontal direction and its length is less than the length of the sleeve; and the guide groove and the guide strip form a limiting fit to prevent the sleeve from dislodging from the other end of the mounting groove in the first horizontal direction.
[0013] In some embodiments of this application, the cover plate has a connecting hole, the bottom of the main body has a receiving groove that connects the mounting groove and the outside, the bottom of the main body has a downwardly extending connecting post, and the connecting post is located in the receiving groove. The connecting post passes through the connecting hole to connect the cover plate and the main body, and the cover plate is embedded in the receiving groove.
[0014] In some embodiments of this application, the sleeve includes a first tube section and a second tube section arranged sequentially along a first horizontal direction. The end of the first tube section away from the second tube section is a first opening, and the end of the second tube section away from the first tube section is a second opening. A positioning recess is provided on the end of the first tube section near the second tube section, and a positioning protrusion is provided on the end of the second tube section near the first tube section. The positioning protrusion engages with the positioning recess to connect the first tube section and the second tube section.
[0015] As can be seen from the above technical solution, the embodiments of this utility model have at least the following advantages and positive effects:
[0016] In this embodiment of the float, the exposed portions of the two supports are respectively used to embed into two grooves or holes in the base, so as to snap the float onto the base as a whole, thus fixing the float as a whole. Further, since the exposed portions of the supports are hemispherical, and the grooves that mate with them are also hemispherical, a rolling friction pair is formed between them, allowing the float to rotate around a first horizontal direction. The float body and the top block are located on opposite sides of the rolling friction pair in a second horizontal direction, so that when the float rotates around the first horizontal direction, the rising and falling directions of the float body and the top block are opposite. Specifically, when the water level rises, the float body rises accordingly, and the top block descends to disengage from the valve core, thereby closing the valve. When the water level falls, the float body descends accordingly, and the top block rises to support the valve core, thereby opening the valve.
[0017] When installing or removing the float, the exposed part of the support is designed to fit into the groove or hole of the base and is hemispherical. The shape of the exposed part allows it to roll into and out of the groove or hole. Furthermore, since the support can move along the first horizontal direction, the exposed part of the support will overcome the force of the elastic element and contract inward when compressed. When aligned with the hole or groove of the base, it will automatically pop out and lock in place. Thus, the installation and removal of the float can be completed without special tools, making the operation quick and convenient. Attached Figure Description
[0018] The various objectives, features, and advantages of this invention will become more apparent from the following detailed description of preferred embodiments in conjunction with the accompanying drawings. The drawings are merely illustrative illustrations of the invention and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein:
[0019] Figure 1 This is a schematic diagram of the structure of a float according to an exemplary embodiment.
[0020] Figure 2 yes Figure 1 A schematic diagram of the assembly structure of the base.
[0021] Figure 3 yes Figure 2 A schematic diagram of the disassembled structure.
[0022] Figure 4 yes Figure 1 A cross-sectional view in one embodiment.
[0023] Figure 5 yes Figure 1 A cross-sectional view in another embodiment.
[0024] Figure 6 yes Figure 1 A schematic diagram of its decomposed structure.
[0025] Figure 7 yes Figure 5 A schematic diagram of the specific structure of the transmission component.
[0026] The annotations in the attached figures are explained as follows:
[0027] 1. The float itself;
[0028] 2. Connector; 21. Main body; 211. Mounting groove; 212. Guide groove; 213. Receiving groove; 214. Connecting post; 22. Cover plate; 221. Insert block; 222. Connecting hole; 23. Top block;
[0029] 3. Transmission assembly; 31. Sleeve; 311. First tube section; 3111. First opening; 312. Second tube section; 3121. Second opening; 313. Guide bar; 3131. First guide bar; 3132. Second guide bar; 314. Slot; 315. Positioning recess; 3151. Positioning hole; 3152. Positioning groove; 316. Positioning protrusion; 3161. Positioning post; 3162. Positioning block; 32. Support; 321. First support; 322. Second support; 33. Elastic element; 331. First spring; 332. Second spring; 34. Positioning sleeve; 341. First end; 3411. Ball groove; 342. Second end; 3421. Cylinder opening;
[0030] 4. Base;
[0031] D1, first horizontal direction; D2, second horizontal direction. Detailed Implementation
[0032] Although the present invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to what is described herein.
[0033] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.
[0034] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of this invention are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, these directional indications also change accordingly.
[0035] Please see Figures 1 to 5 The float provided in one embodiment of this utility model mainly includes a float body 1, a connector 2, and a transmission assembly 3. The connector 2 is connected to the float body 1, and its top is provided with a top block 23, which has an installation groove 211 that passes through the connector 2 in the first horizontal direction D1. The top block 23, the installation groove 211, and the float body 1 are arranged sequentially in the second horizontal direction D2, and the second horizontal direction D2 and the first horizontal direction D1 are not parallel. The transmission assembly 3 includes a sleeve 31, a support 32, and an elastic element 33. The sleeve 31 is fixed in the mounting groove 211 and is a hollow tube extending along the first horizontal direction D1, with its two ends being a first opening 3111 and a second opening 3121, respectively. Two supports 32 are provided and are movably disposed in the sleeve 31 along the first horizontal direction D1. The elastic element 33 is located between the two supports 32 and is used to provide elastic force to push the two supports 32 so that the two supports 32 are partially exposed in the first opening 3111 and the second opening 3121, respectively. The exposed part of the support 32 is located outside the mounting groove 211 and is hemispherical.
[0036] In this embodiment of the present invention, the exposed portions of the two supports 32 are respectively used to embed into two grooves or holes in the base 4 to secure the float as a whole onto the base 4, thus fixing the float as a whole. Furthermore, since the exposed portions of the supports 32 are hemispherical, and the grooves that mate with them are also hemispherical, a rolling friction pair is formed between them, allowing the float to rotate around the first horizontal direction D1. The float body 1 and the top block 23 are located on opposite sides of the rolling friction pair in the second horizontal direction D2, so that when the float rotates around the first horizontal direction D1, the rising and falling directions of the float body 1 and the top block 23 are opposite. Specifically, when the water level rises, the float body 1 rises accordingly, and the top block 23 descends to disengage from the valve core, thereby closing the valve. When the water level falls, the float body 1 descends accordingly, and the top block 23 rises to support the valve core, thereby opening the valve.
[0037] When installing or removing the float, the exposed part of the support 32 is used to mate with the groove or hole of the base 4 and is hemispherical. The shape of the exposed part allows the exposed part of the support 32 to roll into and out of the groove or hole. Furthermore, since the support 32 can move along the first horizontal direction D1, the exposed part of the support 32 will overcome the force of the elastic member 33 and retract inward when it is squeezed. When it is aligned with the hole or groove of the base 4, it will automatically pop out and lock. Thus, the installation and removal of the float can be completed without special tools, which is quick and convenient in operation.
[0038] It should be noted that the exposed portion of the support 32 is hemispherical. Its size can be exactly half a sphere, larger than half a sphere, or smaller than half a sphere. In this embodiment, the size of the exposed portion of the support 32 is the latter.
[0039] It should be noted that the float achieves rotation through a shape fit, which, compared to the existing technology where the valve stem and rotating pin achieve rotation through a hole-shaft clearance fit, can effectively reduce various situations that lead to increased rotational resistance.
[0040] It is conceivable that the elastic element 33 provides elastic support to the two supports 32, which helps the exposed part of the supports 32 to be stably held in the groove or hole of the base 4.
[0041] Please see Figure 4 In one embodiment where the elastic element 33 acts elastically on the two supports 32, positioning them at the first opening 3111 and the second opening 3121 respectively, the supports 32 are spherical, with diameters larger than the openings of the first and second openings. The elastic element 33 is a spring, with its two ends connected to the two supports 32. The spring applies an outward thrust to the two spherical supports 32, forcing the two spheres to protrude outward. Because the diameters of the two supports 32 are larger than the openings of the first and second openings, it ensures that the two supports 32 will not completely detach from the sleeve 31 under the spring's thrust, and keeps the exposed portions of the two supports 32 constant, thereby ensuring the stability and reliability of the overall structure.
[0042] Please see Figure 5In another embodiment where the elastic element 33 acts elastically on the two supports 32, positioning them at the first opening 3111 and the second opening 3121 respectively, the two supports 32 are the first support 321 and the second support 322. The transmission assembly 3 also includes a positioning sleeve 34, which is movably inserted into the sleeve 31 along a first horizontal direction D1 and located between the two supports 32. The first end 341 of the positioning sleeve 34 abuts against the first support 321, and its second end 342 has an opening 3421 communicating with its interior. The elastic element 33 includes a first spring 331 and a second spring 332, with the width of the first spring 331 being smaller than the width of the second spring 332. The first spring 331 is installed inside the positioning sleeve 34, with one end connected to the end wall of the first end 341 of the positioning sleeve 34, and the other end extending through the opening 3421 of the second end 342 of the positioning sleeve 34 and connecting with the second support 322. The second spring 332 is located between the positioning sleeve 34 and the second support 322. One end of the spring is connected to the end face of the second end 342 of the positioning sleeve 34, and the other end is connected to the second support 322.
[0043] The elastic force of the first spring 331 and the second spring 332 is transmitted to the first support 321 through the positioning sleeve 34. The positioning sleeve 34 provides a guiding and positioning effect, which can prevent the first spring 331 and the second spring 332 from deviating when subjected to force, and ensure that the elastic force provided by the elastic element 33 is always transmitted along the first horizontal direction D1, thereby ensuring the stability of the elastic mechanism. On the other hand, the positioning sleeve 34 connects the first spring 331 and the second spring 332, which have different widths and numbers of turns. The first spring 331 and the second spring 332 provide elastic force respectively, so as to more stably and reliably elastically act on the two supports 32.
[0044] In a further embodiment, both the first support 321 and the second support 322 are spherical, with the diameter of the ball in the first support 321 being larger than the diameter of the first opening 3111, and the diameter of the ball in the second support 322 being larger than the diameter of the second opening 3121. A ball groove 3411 is formed on the end wall of the second end 342 of the positioning sleeve 34, facing the second rotating member and fitting against the second support 322.
[0045] On the one hand, the ball diameters of the first support 321 and the second support 322 are larger than the diameters of the first opening 3111 and the second opening 3121, respectively. This ensures that the two supports 32 will not completely detach from the sleeve 31 under the thrust of the elastic element 33, and that the exposed portion remains constant, thereby ensuring the stability and reliability of the overall structure. On the other hand, the ball groove 3411 on the second end 342 of the positioning sleeve 34 can form a shape fit with the spherical structure of the first support 321 to increase the contact area, thereby enabling the elastic force provided by the elastic element 33 to be transmitted more comprehensively and stably to the first support 321.
[0046] Please see Figures 4 to 7 In a specific embodiment, the connector 2 includes a main body 21 and a cover plate 22. The main body 21 has a mounting groove 211, and the top of the mounting groove 211 has a guide groove 212 extending along a first horizontal direction D1. The bottom of the mounting groove 211 is open. The cover plate 22 is connected to the main body 21 to close the bottom of the mounting groove 211, and the cover plate 22 has a protruding insert 221 extending into the mounting groove 211. The sleeve 31 has a guide strip 313 that mates with the guide groove 212 and a slot 314 that mates with the insert 221, thus fixing it within the mounting groove 211. Through the mate of the guide groove 212 and the guide strip 313, the mate of the insert 221 and the slot 314, and the connection between the cover plate 22 and the main body 21, the sleeve 31 can be stably fixed within the mounting groove 211, restricting the sleeve 31 from rotating within the mounting groove 211, thus ensuring the feasibility of rotating the float as a whole by relying on the exposed portion of the support 32.
[0047] In a specific embodiment, the guide groove 212 extends from one end of the mounting groove 211 in the first horizontal direction D1, and its length is less than the length of the mounting groove 211. The guide strip 313 extends from one end of the sleeve 31 in the first horizontal direction D1, and its length is less than the length of the sleeve 31. The guide groove 212 and the guide strip 313 form a limiting fit to prevent the sleeve 31 from coming out of the mounting groove 211 from the other end of the mounting groove 211 in the first horizontal direction D1.
[0048] Specifically, the cover plate 22 is separated from the main body 21, and the sleeve 31 is pushed into the mounting groove 211 from one side slot in the first horizontal direction D1. During this process, the guide groove 212 in the mounting groove 211 and the guide strip 313 on the sleeve 31 form a guiding fit. The design of the guide groove 212 and the guide strip 313 can also quickly sense whether the sleeve 31 has been pushed into place. Then the cover plate 22 and the main body 21 are connected to fix the sleeve 31 in the mounting groove 211. This method is convenient to operate and has reliable connection.
[0049] In a specific embodiment, the cover plate 22 has a connecting hole 222, the bottom of the main body 21 has a receiving groove 213 that connects the mounting groove 211 and the outside respectively, and the bottom of the main body 21 has a downwardly extending connecting post 214, which is located in the receiving groove 213. The connecting post 214 passes through the connecting hole 222, and the two form an interference fit to connect the cover plate 22 and the main body 21. The cover plate 22 is embedded in the receiving groove 213, which has the advantages of convenient disassembly and assembly and compact structure.
[0050] Please see Figure 4 and Figure 5In a specific embodiment, the sleeve 31 includes a first tube portion 311 and a second tube portion 312 arranged sequentially along a first horizontal direction D1. The end of the first tube portion 311 away from the second tube portion 312 is a first opening 3111, and the end of the second tube portion 312 away from the first tube portion 311 is a second opening 3121. The end of the first tube portion 311 near the second tube portion 312 is provided with a positioning recess 315, and the end of the second tube portion 312 near the first tube portion 311 is provided with a positioning protrusion 316. The positioning protrusion 316 and the positioning recess 315 engage with each other to connect the first tube portion 311 and the second tube portion 312.
[0051] Specifically, one of the support members 32 is first installed into the first tube 311, and then the other support member 32 is installed into the second tube 312. Subsequently, the elastic member 33 is installed. Finally, the first tube 311 and the second tube 312 are quickly assembled together by the interlocking of the positioning recess 315 and the positioning protrusion 316. This allows for quick and easy alignment and assembly of the various components in the transmission assembly 3, thereby improving assembly efficiency. Furthermore, the engagement between the positioning recess 315 and the positioning protrusion 316 can effectively prevent rotational displacement between the first tube 311 and the second tube 312, thereby further enhancing the reliability and stability of the overall structure.
[0052] In a further embodiment, the positioning recess 315 is located on the end face of the first tube portion 311 near the end of the second tube portion 312, and the positioning protrusion 316 is located on the end face of the second tube portion 312 near the end of the first tube portion 311.
[0053] It should be noted that the positioning protrusion 316 can be a positioning post 3161, a positioning block 3162, or a combination of both. The positioning recess 315 can be a positioning hole 3151, a positioning groove 3152, or a combination of both. The positioning post 3161 engages with the positioning hole 3151, and the positioning block 3162 engages with the positioning groove 3152.
[0054] In this embodiment, the positioning protrusion 316 includes a positioning post 3161 and a positioning block 3162, and the positioning recess 315 includes a positioning hole 3151 and a positioning groove 3152. The first positioning structure formed by the positioning post 3161 and the positioning hole 3151 and the second positioning structure formed by the positioning block 3162 and the positioning groove 3152 are arranged vertically.
[0055] In other embodiments, a plurality of positioning protrusions 316 and positioning recesses 315 may be provided, and the positioning structure formed by the positioning protrusions 316 and positioning recesses 315 may be arranged circumferentially around the sleeve 31.
[0056] Please see Figure 7In this embodiment, the guide bar 313 includes a first guide bar 3131 and a second guide bar 3132 that are connected to each other. The first guide bar 3131 is located on the first tube 311 and its length is less than the length of the first tube 311. The second guide bar 3132 is located on the second tube 312 and its length is equal to the length of the first tube 311. Both the first tube 311 and the second tube 312 are provided with slots 314.
[0057] It should be noted that in the above embodiments, the length of the mounting groove 211 is the same as the length of the sleeve 31, the first opening 3111 and the second opening 3121 are respectively flush with the two slots of the mounting groove 211 in the first horizontal direction D1, and the portions of the two supports 32 exposed outside the first opening 3111 and the second opening 3121 are all exposed outside the mounting groove 211.
[0058] It should be noted that, in the preferred embodiment, the first horizontal direction D1 is perpendicular to the second horizontal direction D2.
[0059] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.
Claims
1. A float, characterized in that, include: The float itself; A connector is connected to the float body. It has a top block on its top and an installation groove that penetrates the connector in a first horizontal direction. The top block, the installation groove and the float body are arranged sequentially in a second horizontal direction, and the second horizontal direction is not parallel to the first horizontal direction. The transmission assembly includes a sleeve, supports, and an elastic element. The sleeve is fixed in the mounting groove and is a hollow tube extending along the first horizontal direction, with a first opening and a second opening at its two ends. Two supports are provided and are movably disposed in the sleeve along the first horizontal direction. The elastic element is located between the two supports and is used to provide elastic force to push the two supports so that the two supports are partially exposed outside the first opening and the second opening, respectively. The exposed portion of the supports is located outside the mounting groove and is hemispherical.
2. The float according to claim 1, characterized in that, The support member has a spherical structure, and the diameter of the two spheres of the two support members is larger than the diameter of the first opening and the diameter of the second opening, respectively. The elastic member is a spring, and its two ends are respectively connected to the two support members.
3. The float according to claim 1, characterized in that, The two supports are the first support and the second support, respectively; The transmission assembly further includes a positioning sleeve, which is movable in the first horizontal direction and passes through the sleeve and is located between the two supports. The first end of the positioning sleeve abuts against the first support, and its second end has a cylindrical opening that communicates with its interior. The elastic element includes a first spring and a second spring, wherein the width of the first spring is smaller than the width of the second spring; The first spring is installed inside the positioning sleeve, with one end connected to the end wall of the first end of the positioning sleeve, and the other end passing through the opening of the second end of the positioning sleeve and connected to the second support. The second spring is located between the positioning sleeve and the second support, with one end connected to the end face of the second end of the positioning sleeve and the other end connected to the second support.
4. The float according to claim 3, characterized in that, Both the first support and the second support are spherical structures, and the diameter of the ball in the first support is larger than the diameter of the first opening, and the diameter of the ball in the second support is larger than the diameter of the second opening. A ball groove is provided on the end wall of the second end of the positioning sleeve, the ball groove faces the first support and fits against the first support.
5. The float according to claim 1, characterized in that, The connector includes a main body and a cover plate. The main body has an installation groove, the top of the installation groove has a guide groove extending along the first horizontal direction, the bottom of the installation groove is open, the cover plate is connected to the main body to close the bottom of the installation groove, and the cover plate has a protruding insert extending into the installation groove. The sleeve is provided with a guide strip that mates with the guide groove and a slot that mates with the insert block, so as to fix it in the mounting groove.
6. The float according to claim 5, characterized in that, The guide groove extends from one end of the mounting groove in the first horizontal direction and its length is less than the length of the mounting groove. The guide strip extends from one end of the sleeve in the first horizontal direction and its length is less than the length of the sleeve. The guide groove and the guide strip form a limiting fit to prevent the sleeve from coming out of the mounting groove from the other end of the mounting groove in the first horizontal direction.
7. The float according to claim 5, characterized in that, The cover plate has a connecting hole, and the bottom of the main body has a receiving groove that connects the mounting groove and the outside. The bottom of the main body has a downwardly extending connecting post, and the connecting post is located in the receiving groove. The connecting post passes through the connecting hole to connect the cover plate and the main body, and the cover plate is embedded in the receiving groove.
8. The float according to claim 1, characterized in that, The sleeve includes a first tube section and a second tube section arranged sequentially along a first horizontal direction. The end of the first tube section away from the second tube section is a first opening, and the end of the second tube section away from the first tube section is a second opening. The end of the first tube section near the second tube section is provided with a positioning recess, and the end of the second tube section near the first tube section is provided with a positioning protrusion. The positioning protrusion engages with the positioning recess to connect the first tube section and the second tube section.