Connecting piece for buoy and buoy

Abstract

The utility model discloses a connecting piece for a buoy and the buoy. The connecting piece comprises a connector and a connecting part, and detachable connection is achieved through a locking structure. The locking structure comprises a buckle and a clamping groove, and the clamping groove is a groove extending in the circumferential direction of the connector or the connecting part. And a force is applied to the joint and / or the connecting part, so that the buckle is embedded into the clamping groove to realize a locking state of the joint and the connecting part and is separated from the clamping groove to realize an unlocking state of the joint and the connecting part. According to the utility model, a locking structure combining the buckle and the clamping groove is adopted, so that locking can be realized by embedding the buckle into the clamping groove after the joint and the connecting part are oppositely and directly inserted along the axial direction of the connecting piece, and unlocking can be realized by separating the buckle from the clamping groove after the joint and the connecting part are oppositely pulled out along the axial direction of the connecting piece; the connection is firmer, and the problem of unstable connection or failure caused by environment change is solved; meanwhile, the clamping groove is a groove extending in the circumferential direction, the buckle can be embedded into the clamping groove at any position, and the buckle does not need to be inserted in a designated position.

Description

Technical Field

[0001] The utility model relates to the technical field of floats, in particular to a connecting piece for a float and a float. Background Art

[0002] A float, also known as a fishing float, fish bobber or buoy, is a core component in every angler's tackle box. This small device can not only provide immediate feedback to the angler about fish nibbling on the bait, but also help the angler adjust the depth of the bait in the water and mark the fishing spot. For the convenience of anglers to observe at night fishing, electronic floats that can emit light have emerged on the market. The existing connectors of electronic floats are realized in the form of plastic screw threads plus waterproof rings. Although the sealing performance is good, there is a certain fitting gap between the internal and external threads, and it requires rotation for locking and unlocking, with cumbersome operations. There are also connectors in the form of a clamping type with a direct insertion zero-clearance fit, but there are also some problems: for the clamping method with zero-clearance fit, it is inconvenient to disassemble and replace devices such as the float tail or battery later; and because the connector is an elastic plastic part, the size is small and difficult to control. The plastic part has thermal expansion and contraction. Sometimes it cannot be inserted or is inserted very tightly. If there is cold shrinkage in a cold environment, it is very easy to fall off; and the long-term use environment is a wet environment such as water and under sunlight. The elastic plastic part is prone to aging and losing elasticity, resulting in problems such as clamping failure, loosening of the connector, and poor sealing. Summary of the Utility Model

[0003] Based on this, it is necessary to provide a connecting piece for a float and a float in view of the above technical problems.

[0004] The utility model is realized through the following technical solutions:

[0005] In a first aspect, a connecting piece for a float includes a joint and a connecting portion; the joint and the connecting portion are detachably connected through a locking structure; the locking structure includes a buckle and a slot, and the slot is a groove extending along the circumferential direction of the joint or the connecting portion; applying force to the joint and / or the connecting portion enables the buckle to be embedded into the slot to achieve the locked state of the joint and the connecting portion and to be disengaged from the slot to achieve the unlocked state of the joint and the connecting portion.

[0006] As a preferred embodiment of the connecting piece for a float provided by the utility model, the buckle respectively has a guiding portion and a detaching portion in the direction of the embedding and detaching paths, and the chamfer angle of the guiding portion is greater than the chamfer angle of the detaching portion; or,

[0007] The buckle has an introduction part and a removal part in the direction of the embedding and disengagement paths, respectively, and the chamfer angle of the introduction part is greater than the chamfer angle of the removal part; the locking structure also includes a disengagement groove, which is located on the circumferential extension path of the slot, and a transition column is provided between the disengagement groove and the slot, and when the joint and the connecting part rotate relative to each other, the buckle crosses the transition column and enters the disengagement groove to realize the unlocked state of the joint and the connecting part.

[0008] As a preferred embodiment of the floating connector provided by the utility model, the introduction portion is chamfered, and the detachable portion is rounded.

[0009] As a preferred embodiment of the floating connector provided by the utility model, the locking structure also includes a disengagement groove, which is located on the circumferential extension path of the slot, and a transition column is provided between the disengagement groove and the slot, and when the joint and the connecting part rotate relative to each other, the buckle crosses the transition column and enters the disengagement groove to realize the unlocking state of the joint and the connecting part; the buckle has an introduction part in the direction of the embedding path.

[0010] As a preferred embodiment of the floating connector provided by the utility model, the slot has an introduction portion and an output portion in the directions of the embedding and disengagement paths respectively; the introduction portion and the output portion are chamfered.

[0011] As a preferred embodiment of the floating connector provided by the utility model, the buckle and the slot are respectively arranged on the connecting part and the joint; or, the buckle and the slot are respectively arranged on the joint and the connecting part.

[0012] As a preferred embodiment of the floating connector provided by the utility model, the two transition columns located on both sides of the slot, one serves as a hand-feeling column, whose thickness is lower than the depth of the slot, and the column edge close to the slot is set as an arc surface; the other serves as a limiting column, whose thickness is equal to the depth of the slot; the buckle can cross the hand-feeling column to enter the escape slot, and cannot cross the limiting column; or, the two transition columns located on both sides of the slot are both hand-feeling columns, whose thickness is lower than the depth of the slot.

[0013] As a preferred embodiment of the floating connector provided by the utility model, a sealing structure is further provided between the joint and the connecting part; and / or a damping adjustment hollow area is provided in the contact area between the joint and the connecting part.

[0014] As a preferred embodiment of the floating connector provided by the utility model, the connector and the connecting part have a through middle cavity and a through inner cavity respectively; one end of the connector is detachably connected to the through inner cavity through the locking structure.

[0015] In a second aspect, a float has at least one connecting member as described above and a float body. The connecting portion of the connecting member is fixed on the float body, and one end of the joint away from the connecting portion is connected to the float head or the float tail.

[0016] Compared with the prior art, the present utility model has the following beneficial effects:

[0017] For a connecting member for a float provided by the present utility model, a locking structure is provided between the joint and the connecting portion, and the two are detachably connected through the locking structure. The locking structure includes a buckle and a card slot. The card slot is a slot extending along the circumferential direction of the joint or the connecting portion. Designed in this way, the buckle can be inserted into the card slot at any position without the need for plugging at a specified position. Applying force to the joint and / or the connecting portion so that the buckle is inserted into the card slot and a clicking sound is heard can achieve the locked state of the joint and the connecting portion, and the buckle disengaging from the card slot can achieve the unlocked state of the joint and the connecting portion. For the connecting member of the present utility model, a locking structure combining a buckle and a card slot is adopted. The joint and the connecting portion can be directly inserted axially along the connecting member and then the buckle is inserted into the card slot to achieve locking, and the joint and the connecting portion can be pulled out axially in the opposite direction and then the buckle disengages from the card slot to achieve unlocking. Compared with the direct tight-fitting connection method, it is more firm and will not cause problems such as unstable connection or failure due to environmental changes.

[0018] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present utility model.

[0019] For better understanding and implementation, the present utility model will be described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the solutions in the present utility model, the accompanying drawings required for the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 A three-dimensional schematic diagram of the connecting member for a float provided by the present utility model;

[0022] Figure 2 An exploded schematic diagram of the first embodiment of the connecting member provided by the present utility model;

[0023] Figure 3 For Figure 1 bottom view;

[0024] Figure 4 Figure 3Cross-sectional view at A-A in [specific context], where the connecting member is in the locked state;

[0025] Figure 5 is Figure 4 exploded schematic view, where the arrow in the figure indicates that the joint and the connecting part can move axially relative to each other. This figure shows the direct plug-in embedding or pulling out and detachment of the joint and the connecting part along the axis;

[0026] Figure 6 Exploded schematic view of the second embodiment of the connecting member provided by the present invention;

[0027] Figure 7 Side view of the second embodiment of the connecting member provided by the present invention;

[0028] Figure 8 is Figure 7 Cross-sectional view at B-B in [specific context], where the connecting member is in the locked state;

[0029] Figure 9 is Figure 7 Cross-sectional view at B-B in [specific context], where the connecting member is in the unlocked state;

[0030] Figure 10 Schematic view of the second embodiment of the connecting member provided by the present invention from the locked state to the unlocked state;

[0031] Figure 11 is Figure 8 Stereoscopic cross-sectional view at C-C in [specific context], where the connecting member is in the locked state;

[0032] Figure 12 is Figure 11 Exploded schematic view, which shows the state before the up-and-down direct plugging action of the joint and the connecting part;

[0033] Figure 13 For the third embodiment of the connecting member provided by the present invention in Figure 8 Exploded schematic view at C-C in [specific context];

[0034] Figure 14 For the connecting member provided by the present invention in Figure 7 Another cross-sectional view at B-B in [specific context];

[0035] Figure 15 is Figure 14 Stereoscopic cross-sectional view at D-D in [specific context], where the connecting member is in the locked state;

[0036] Figure 16 is Figure 15 Exploded schematic view, which shows the state before the up-and-down direct plugging action of the joint and the connecting part;

[0037] Figure 17 is Figure 14 a perspective sectional view at the D-D position, where the connecting member is in the unlocked state;

[0038] Figure 18 is Figure 17 an exploded schematic view, showing the state after the joint and the connecting part are disengaged vertically. Detailed implementation manners

[0039] To enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0040] To enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

[0041] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments may be combined with each other.

[0042] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0043] <Connecting member for float>

[0044] As Figures 1 - 18 shown, it shows the connecting member provided in this embodiment, which is applied to a float.

[0045] As Figure 1 、 2 shown, the connecting member includes a joint 1 and a connecting part 2. A locking structure 3 is provided between the joint 1 and the connecting part 2, and the two are detachably connected through the locking structure 3.

[0046] The joint 1 and the connecting part 2 respectively have a through cavity 11 and a through inner cavity 21. One end of the joint 1 is detachably connected to the through inner cavity 21 through the locking structure 3. One end of the through cavity 11 of the joint 1, such as the upper end, is used to connect the float head or float tail of the float, and the other end, such as the lower end, is used to carry and fix devices such as batteries and light-emitting components.

[0047] The locking structure 3 includes a buckle 31 and a clamping groove 32. In one embodiment, the buckle 31 and the clamping groove 32 are respectively arranged on the connecting part 2 and the joint 1, and the clamping groove 32 is a groove extending along the circumferential direction of the joint 1; in another embodiment, the buckle 31 and the clamping groove 32 are respectively arranged on the joint 1 and the connecting part 2, and the clamping groove 32 is a groove extending along the circumferential direction of the connecting part 2. Applying force to the joint 1 and / or the connecting part 2 enables the buckle 31 to be embedded into the clamping groove 32 to achieve the locked state of the joint 1 and the connecting part 2, and to disengage from the clamping groove 32 to achieve the unlocked state of the joint 1 and the connecting part 2.

[0048] In the embodiment of the present utility model, taking the buckle 31 arranged on the connecting part 2 and the clamping groove 32 arranged on the joint 1 as an example for further description.

[0049] The buckle 31 is arranged on the inner cavity wall surface of the connecting part 2, and the clamping groove 32 is arranged on the outer side wall of the joint 1. The clamping groove 32 can be a groove opened along the circumferential direction of the joint 1. With such a design, the buckle 31 can be embedded into the clamping groove 32 at any position without the need for plugging at a specified position, which is convenient for the user to plug and can achieve plugging and locking without picky positions.

[0050] In the first embodiment, as Figures 4 - 5 shown, the buckle 31 respectively has a guiding portion 311 and a disengaging portion 312 in the embedding and disengaging path directions. The guiding portion 311 can be a chamfer obtained by chamfering the side surface or edge of the buckle 31, such as an inclined chamfer or a rounded chamfer. In this embodiment, an inclined chamfer is preferably used. The disengaging portion 312 can be a chamfer obtained by chamfering the edge of the buckle 31, such as an inclined chamfer or a rounded chamfer. In this embodiment, a rounded chamfer is preferably used. A chamfer means cutting or trimming the connecting edge of two surfaces to make it into a bevel or arc shape at a certain angle. Further, the chamfer angle of the guiding portion 311 is greater than the chamfer angle of the disengaging portion 312, that is, the force required for the buckle 31 to disengage from the clamping groove 32 is much greater than the force for the buckle 31 to be embedded into the clamping groove 32. With such a design, the problem that the buckle 31 is likely to disengage from the clamping groove 32 during use and cause connection failure is avoided.

[0051] To facilitate easier embedding and disengagement, the clamping groove 32 respectively has a guiding-in portion 321 and a guiding-out portion 322 in the embedding and disengaging path directions, and the guiding-in portion 321 and the guiding-out portion 322 are rounded chamfers. In this embodiment, the clamping groove 32 is a groove structure, which has an upper protruding side 323 and a lower protruding side 324, and is recessed in the middle to form a groove structure. The upper and lower edges of the lower protruding side 324 are chamfered to obtain rounded chamfers, that is, the lower edge chamfering obtains the guiding-in portion 321, and the lower edge chamfering obtains the guiding-out portion 322.

[0052] In the above-described embodiments, the locking structure 3 employing the combination of the buckle 31 and the slot 32 enables the user to axially apply force along the connecting member (i.e., the axis of the joint 1 or the axis of the connecting portion 2) to directly insert the joint 1 and the connecting portion 2 towards each other, and then the buckle 31 is inserted into the slot 32. When a clicking sound is heard, locking is achieved. The direct insertion and clamping method combined with sound feedback is convenient and simple. Moreover, when the user axially applies force along the connecting member to pull the joint 1 and the connecting portion 2 away from each other, the buckle 31 disengages from the slot 32, and unlocking is realized.

[0053] Please refer to Figures 6 - 12 , in the second embodiment, which is a further optimization based on the first embodiment above, the locking structure 3 further includes a release groove 33 located on the circumferential extension path of the slot 32. A transition post 34 is provided between the release groove 33 and the slot 32. When the joint 1 and the connecting portion 2 rotate relative to each other, the buckle 31 crosses the transition post 34 and enters the release groove 33 to achieve the unlocked state of the joint 1 and the connecting portion 2. The transition post 34 is used to block the buckle 31, and without external force, the buckle 31 cannot cross the transition post 34 and enter the release groove 33, ensuring the firm connection between the joint 1 and the connecting portion 2.

[0054] Both sides of the release groove 33 are straight edges 331 to prevent the buckle 31 that enters the release groove 33 from turning again and entering the slot 32, as Figure 6 shown.

[0055] Please refer to Figure 10 , when the user applies force to the joint 1 or the connecting portion 2 to drive the joint 1 to rotate relative to the connecting portion 2, a clicking sound is emitted when the buckle 31 crosses the transition post 34 and enters the release groove 33, and the joint 1 and the connecting portion 2 are in the unlocked state. The release groove 33 places no restriction on the axial movement of the buckle 31 along the connecting portion 2, so the joint 1 and the connecting portion 2 can be easily disengaged vertically. The two transition posts 34 located on both sides of the slot 32 are both feel posts 341, whose thickness h is lower than the depth d of the slot 32, and the column edge close to the slot 32 is chamfered to form a guiding portion 322, i.e., an arc surface s, so as to facilitate the buckle 31 to cross the feel post 341 and enter the release groove 33. With such a structural design, compared with the first embodiment above, an additional unlocking method with less applied force is provided, that is, the force for the buckle 31 to cross the feel post 341 is smaller than the force for the buckle 31 to directly disengage from the slot 32 along the axis of the connecting member, which is convenient for different users. Different unlocking methods can be selected according to the actual situation, and the service life of the connecting member is also extended.

[0056] It can be understood that there is also a third embodiment, which is an improvement based on the second embodiment. The difference from the second embodiment is that: the buckle 31 does not have a detaching portion 312 in the axial direction of the connecting member, that is, the buckle 31 cannot axially disengage from the slot 32, as Figure 13 shown.

[0057] The chamfer angle involved in this embodiment can be designed according to the actual force requirement and will not be elaborated here.

[0058] The buckle 31 can be one or multiple, such as two, three, etc. Preferably, two buckles 31 are selected for the connecting member of the present utility model.

[0059] In the above second or third embodiment, when unlocking, it is not necessary to apply too much force to rotate the buckle 31 across the feel post 341 and into the disengaging groove 33, which is convenient for operation. When more than two buckles 31 are used, all the transition posts 34 are feel posts 341, and there is a problem that the buckle 31 that rotates with too much force into the disengaging groove 33 may rotate back into the engaging groove 32 again, and it is impossible to sense whether it enters the disengaging groove 33. To solve this problem, another embodiment is proposed. Please refer to Figures 14 - 18 , for the two transition posts 34 on both sides of the engaging groove 32, one is used as the feel post 341 to facilitate the buckle 31 to cross the feel post 341 and enter the disengaging groove 33; the other is used as the limiting post 342, and its thickness is equal to the depth d of the engaging groove 32 to prevent the buckle 31 from crossing, that is, the buckle 31 can cross the feel post 341 and enter the disengaging groove 33, but cannot cross the limiting post 342. After adopting the above structural design, after the buckle 31 rotates in one direction across the feel post 341 and enters the disengaging groove 33, it cannot cross the limiting post 342 on the other side of the disengaging groove 33, and when rotating in the other direction, it abuts against the limiting post 342 and cannot cross, that is, the problem of rotating back into the engaging groove 32 will not occur. Further, the screwing-out direction can be marked on the upper surface of the joint 1 to facilitate quickly understanding the rotation direction of unlocking.

[0060] A sealing structure is also provided between the joint 1 and the connecting portion 2. Specifically, a sealing groove 12 is formed on the outer wall surface of the joint 1 for placing a sealing ring, which is also located in the inner cavity 21 of the connecting portion 2. The sealing effect between the joint 1 and the connecting portion 2 is achieved through the sealing ring to prevent water from seeping in and protect the electronic device.

[0061] As Figure 2 、 5 shown, the upper part of the joint 1 is provided with a conical structure, and the lower part is provided with a cylindrical structure, and the connecting portion 2 is a cylindrical structure. When the connecting portion 2 is buckled to the joint 1, the top of the connecting portion 2 abuts against the lower edge surface of the conical structure, which also plays a role in positioning to avoid over-insertion.

[0062] As Figure 2 、 6As shown in the figure, a damping adjustment hollowed-out area 13 is provided on the outer wall surface of the joint 1. The outer wall surface of the joint 1 is in contact with the inner cavity 21 of the connecting part 2. When the outer wall surface is a complete wall surface, the frictional force between the joint 1 and the connecting part 2 is relatively large, and the force required for rotation is relatively large, which is inconvenient to use. By hollowing out the outer wall surface, the contact surface between the joint 1 and the connecting part 2 can be reduced, that is, the frictional force between the two can be reduced, which is convenient for rotation. The size of the hollowed-out area 13 can be designed according to actual needs.

[0063] <Float>

[0064] This embodiment provides a float, which has at least one connecting piece and a float body as described above. The connecting part of the connecting piece is fixed on the float body. One end of the joint of the connecting piece away from the connecting part is connected to the float head or the float tail, and electronic devices such as batteries and lighting components can be installed in the middle cavity of the joint. It is also convenient for disassembling and replacing the float head and / or the float tail, as well as disassembling and replacing internal devices such as batteries or lighting components and other accessories that need to be replaced.

[0065] For the float using the connecting piece of the present utility model, it is simple and convenient to replace accessories such as the float head, the float tail and / or internal devices. Anglers can freely match them during fishing, select float tails and float feet of different lengths according to different fishing environments and conditions, adjust the best sensitivity, and improve the fun of fishing.

[0066] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0067] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all the embodiments. The preferred embodiments of the present utility model are given in the drawings, but do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure made by using the specification and drawings of the present utility model and directly or indirectly applied to other related technical fields shall be within the scope of the patent protection of the present utility model by the same token.

Claims

1. A connecting piece for a float, characterized in that, It includes a joint and a connecting part; the joint and the connecting part are detachably connected through a locking structure; the locking structure includes a buckle and a slot, and the slot is a slot extending along the circumference of the joint or the connecting part; force is applied to the joint and / or the connecting part so that the buckle is embedded in the slot to achieve a locked state between the joint and the connecting part and is detached from the slot to achieve an unlocked state between the joint and the connecting part.

2. The connecting member for a float according to claim 1, characterized in that, The buckle has an introduction portion and a release portion in the directions of the embedding and disengaging paths, respectively, and the chamfer angle of the introduction portion is greater than the chamfer angle of the release portion; or The buckle has an introduction part and a removal part in the direction of the embedding and disengagement paths, respectively, and the chamfer angle of the introduction part is greater than the chamfer angle of the removal part; the locking structure also includes a disengagement groove, which is located on the circumferential extension path of the slot, and a transition column is provided between the disengagement groove and the slot, and when the joint and the connecting part rotate relative to each other, the buckle crosses the transition column and enters the disengagement groove to realize the unlocked state of the joint and the connecting part.

3. The connecting member for a float according to claim 2, characterized in that, The introduction portion is chamfered, and the detachment portion is rounded.

4. The connecting piece for a floating fishhook according to claim 1, characterized in that, The locking structure also includes a disengagement groove, which is located on the circumferential extension path of the slot, and a transition column is provided between the disengagement groove and the slot. When the joint and the connecting part rotate relative to each other, the buckle crosses the transition column and enters the disengagement groove to realize the unlocking state of the joint and the connecting part; the buckle has an introduction part in the embedding path direction.

5. The connector for a float according to claim 1, characterized in that, The card slot has an introduction portion and an exit portion in the embedding and disengagement path directions respectively; the introduction portion and the exit portion are chamfered.

6. The connecting member for a float according to claim 2, characterized in that, The buckle and the slot are respectively arranged on the connecting portion and the joint; or, the buckle and the slot are respectively arranged on the joint and the connecting portion.

7. The connector for a floating buoy according to claim 2, characterized in that, The two transition columns located on both sides of the card slot, one serves as a hand-feel column, whose thickness is lower than the depth of the card slot, and the column edge close to the card slot is set as an arc surface; the other serves as a limit column, whose thickness is equal to the depth of the card slot; the buckle can cross the hand-feel column to enter the escape slot, and cannot cross the limit column; or, the two transition columns located on both sides of the card slot are both hand-feel columns, whose thickness is lower than the depth of the card slot.

8. The connector for a floating buoy according to claim 1, characterized in that, A sealing structure is also provided between the joint and the connecting portion; and / or a damping adjustment hollowing area is provided in the contact area between the joint and the connecting portion.

9. The connecting member for a float according to claim 1, wherein, The connector and the connecting part have a through middle cavity and a through inner cavity respectively; one end of the connector is detachably connected to the through inner cavity through the locking structure.

10. A float, characterized in that, It has at least one connecting piece and a float body as described in any one of claims 1 to 9, the connecting part of the connecting piece is fixed on the float body, and the end of the joint away from the connecting part is connected to the float head or the float tail.

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