Telescopic rod locking structure of swimming pool cleaning tool

Abstract

The telescopic rod locking structure of the swimming pool cleaning tool at least comprises a first rod and a second rod which are connected in a sleeved mode, the first end of the first rod is connected with a cleaning body, and the second end of the first rod is movably connected with the second rod. A locking assembly is arranged between the first rod and the second rod, the locking assembly is provided with a fixing part and a locking part, the fixing part is fixed with the first rod / the second rod, the locking part is movably connected with the second rod / the first rod, and the second rod / the first rod can be fixed. Therefore, the first rod and the second rod have a movable state and a locked state. Compared with the prior art, the telescopic swimming pool cleaning device has the advantages that the locking assembly is arranged to lock the two rod pieces, the two rod pieces which are connected in a sleeved mode can be locked after relatively moving, stretching and retracting are achieved, the cleaning requirements of swimming pools at different depth positions can be met, the locking effect is good, and the practicability is high. And in the locking process, the locking assembly or the rod piece cannot be damaged, and the service life is long.

Description

Technical Field

[0001] The utility model relates to the technical field of swimming pool equipment, in particular to a telescopic rod locking structure of a swimming pool cleaning tool. Background Art

[0002] Swimming pools need to be regularly maintained, cleaned and serviced during use. Since the outer structure of the swimming pool is very large, it is no longer possible to clean it with brushes, scoop nets and other tools by hand, so a very long telescopic rod is needed to be put on the brush, scoop net and other tools, and then people can easily use the telescopic rod to push the cleaning tools deep into the bottom and wall of the pool to clean the swimming pool. There are two types of existing telescopic rods for swimming pools: one is an external locking structure, which is to fix a part of the male threaded plastic part on the outer rod, and then twist the female thread to achieve the effect of positioning the telescopic rod; the other is an internal locking structure, which mainly uses a metal eccentric wheel structure. Twisting the inner rod makes the eccentric wheel fit tightly with the inner wall of the outer rod to achieve the effect of positioning. However, both structures have their own design defects in the actual use of swimming pool cleaning. For the external locking structure, after the user completes the cleaning work nearby and needs to clean the pool wall in the distance, he must first get the male and female plastic parts, unscrew the plastic parts, stretch the aluminum rod to the required length, and then tighten the male and female plastic parts again, and adjust repeatedly according to the required length, which has the problems of short service life, low work efficiency, and cumbersome operation; for the internal locking structure, since the eccentric wheel is a metal product, there are certain disinfecting chemical components in the swimming pool, which can easily corrode the eccentric wheel and cause pollution of the swimming pool water, and the direction of the force used in the extension and retraction process of the eccentric wheel must be perpendicular to the eccentric wheel, but the arm length of a person's hand during the extension process is far from the required length requirement, so the distance at which the force is perpendicular to the eccentric wheel is very short. If the length exceeds this, the eccentric wheel will rub against the inner wall of the outer rod to produce a harsh friction sound, and even the eccentric wheel may be stuck on the inner wall of the outer rod, and the rod may shake or get stuck during the extension. On the one hand, the noise will make people feel uncomfortable, and on the other hand, it will cause great trouble to the user. Utility Model Content

[0003] In order to solve the above problems existing in the prior art, the utility model provides a telescopic rod locking structure of a swimming pool cleaning tool.

[0004] The above-mentioned problem of the utility model is solved by the following technical solutions:

[0005] A telescopic rod locking structure of a swimming pool cleaning tool comprises at least a first rod and a second rod which are sleeved with each other, wherein the first end of the first rod is connected to a cleaning body, and the second end is movably connected to the second rod; a locking assembly is arranged between the first rod and the second rod, wherein the locking assembly comprises a fixing portion and a locking portion, wherein the fixing portion is fixed to the first rod / the second rod, and the locking portion is movably connected to the second rod / the first rod, and can fix the second rod / the first rod, so that the first rod and the second rod have an active state and a locked state.

[0006] By adopting the above technical solution, a locking assembly is provided to lock the two rods, so that the two rods can move relatively along the axis, thereby realizing the function of the telescopic rod.

[0007] The above technical solution is further configured as follows: the first rod is an outer tube, and the second rod is an inner tube that can extend into the first rod.

[0008] The above technical solution is further configured as follows: the locking assembly includes a sleeve, the sleeve is formed into a fixed sleeve and a movable sleeve, and the outer sleeve of the movable sleeve is provided with a locking ring;

[0009] The fixing part is the area of ​​the fixing sleeve, and the locking part is the area of ​​the movable sleeve and the locking ring.

[0010] By adopting the above technical solution, the locking ring is arranged on the sleeve, so that the locking assembly is an integral unit, which can be used in conjunction with different rods, so that the locking assembly has a wide range of applicability.

[0011] The above technical solution is further configured as follows: a locking piece is provided on the movable sleeve, and the locking piece can be bent and deformed toward the inside of the movable sleeve under the action of external force, and contact and press with the rod in the movable sleeve to form a locking.

[0012] By adopting the above technical solution, compared with other locking methods, the locking plate presses the rod without damaging the rod, and the locking plate can automatically reset, and the structure is simple.

[0013] The above technical solution is further configured as follows: the locking ring is provided with a driving portion capable of pushing the locking plate toward the center of the movable sleeve.

[0014] The above technical solution is further configured as follows: the locking piece is an elastic piece, the elastic piece is formed on the movable sleeve, and the movable sleeve has an avoidance hole capable of accommodating the passage of the elastic piece.

[0015] By adopting the above technical solution, the locking sheet is set as an elastic sheet so that it can reset itself, which can save the setting of the reset structure, making the structure of the entire locking assembly simpler and easier to operate.

[0016] The above technical solution is further configured as follows: a U-shaped hollow portion is provided on the peripheral wall of the movable sleeve, and the hollow portion surrounds a portion to form a locking piece with one end connected to the movable sleeve.

[0017] By adopting the above technical solution, a hollow portion is provided between the locking piece and the movable sleeve, so that the friction generated when the locking piece moves is reduced, and the locking piece can be smoothly reset or deformed.

[0018] The above technical solution is further configured as follows: the two circumferential ends of the locking plate are respectively a fixed end and a locking end, and the locking end can extend into the movable sleeve and contact the rod; an unlocking groove is provided on the outer surface of the fixed end, and the unlocking groove can accommodate the driving part.

[0019] The above technical solution is further configured as follows: it also includes a limiting sleeve, which is arranged on the upper end of the movable sleeve to limit the movement of the locking ring in the axial direction.

[0020] By adopting the above technical solution, a limiting sleeve is provided to limit the locking ring, so that the locking ring can only rotate around the axis, thereby ensuring the integrity of the locking assembly.

[0021] Compared with the prior art, the beneficial effects of the utility model are: a locking assembly is provided to lock the two rods, so that the two mutually sleeved rods can be locked after relative movement, thereby achieving telescoping, and can meet the cleaning needs of swimming pools at different depths. The locking effect is good, and the locking assembly itself or the rods will not be damaged during the locking process, and the service life is long. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the explosion structure of the utility model.

[0023] Figure 2 Schematic diagram of the casing structure.

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the locking assembly.

[0025] Figure 4 It is a schematic diagram of the horizontal cross-section structure of the locking assembly in the locked state.

[0026] Figure 5 It is a schematic diagram of the horizontal cross-section structure of the locking assembly in the active state.

[0027] Figure 6 It is a schematic diagram of the cross-sectional structure of the connection state of the locking assembly and the telescopic rod.

[0028] The attached drawings are marked as follows: 100, first pole;

[0029] 200, second shot;

[0030] 300, locking assembly; 310, sleeve; 311, fixed sleeve; 312, movable sleeve; 312.1, locking plate; 320, locking ring; 321, driving part; 312.2, hollow part; 312.3, unlocking groove; 330, limiting sleeve;

[0031] a. Fixed end; b. Locking end. DETAILED DESCRIPTION

[0032] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0033] like Figure 1-5 As shown, the following embodiments disclose a telescopic rod locking structure of a swimming pool cleaning tool.

[0034] At least it includes a first rod 100 and a second rod 200 which are socketed with each other, wherein the first end of the first rod 100 is connected to the cleaning body, and the second end is movably connected to the second rod 200; a locking assembly 300 is arranged between the first rod 100 and the second rod 200, and the locking assembly 300 has a fixing portion and a locking portion, the fixing portion is fixed to the first rod 100 / the second rod 200, the locking portion is movably connected to the second rod 200 / the first rod 100, and can fix the second rod 200 / the first rod 100, so that the first rod 100 and the second rod 200 have an active state and a locked state.

[0035] The above is the basic solution of this embodiment.

[0036] Specific reference Figure 1 As shown, in this embodiment, the first end of the first rod 100 is connected to the cleaning body, and the second end is connected to the second rod 200; in order to increase the telescopic range of the telescopic rod, a third rod is also provided in this embodiment, and the third rod is used as a handle.

[0037] Two locking assemblies 300 are also provided, and are respectively arranged between two adjacent rods.

[0038] The fixing parts of the locking assembly 300 are both on the first rod 100 and extend outside the first rod 100 for connecting with the second rod 200; the locking part is movably arranged on the second rod 200; when the first rod 100 and the second rod 200 are sleeved, the locking part and the fixing part are connected, and the locking part is operated to lock the fixing part, so that the locking assembly 300 cannot move, and the first rod 100 and the second rod 200 cannot move relative to each other, thereby completing the locking.

[0039] Preferably, in this embodiment, the first rod 100 is an outer tube, and the second rod 200 is an inner tube that can extend into the first rod 100 .

[0040] The end of the second rod 200 is inserted into the first rod 100 and moves along the axis relative to the first rod 100 , thereby completing the telescopic connection between the first rod 100 and the second rod 200 .

[0041] In this embodiment, the locking assembly 300 includes a sleeve 310, and the sleeve 310 is formed into a fixed sleeve 311 and a movable sleeve 312, and the outer sleeve of the movable sleeve 312 is provided with a locking ring 320;

[0042] The fixing portion is the region of the fixing sleeve 311 , and the locking portion is the region of the movable sleeve 312 and the locking ring 320 .

[0043] Reference Figure 1 As shown, the sleeve 310 is sequentially provided with a fixed sleeve 311 and a movable sleeve 312, the fixed sleeve 311 is used to be fixed to the first rod 100, the movable sleeve 312 is located outside the first rod 100 and connected to the second rod 200; the locking ring 320 is sleeved to the outside of the movable sleeve 312 to lock the movable sleeve 312;

[0044] When the locking ring 320 locks the movable sleeve 312, the movable sleeve 312 is pressed against the second rod 200, so that there is a great friction between the inner wall of the movable sleeve 312 and the second rod 200, thereby preventing the second rod 200 and the movable sleeve 312 from moving, thereby fixing the second rod 200 and the first rod 100;

[0045] Preferably, in this embodiment, to ensure the appearance consistency of the locking assembly 300 , the outer diameter of the movable sleeve 312 is smaller than the outer diameter of the fixed sleeve 311 , and when the locking ring 320 is sleeved onto the outside of the movable sleeve 312 , it has a relatively consistent appearance with the fixed sleeve 311 .

[0046] In this embodiment, the specific implementation of the clamping structure between the movable sleeve 312 and the second rod 200 is as follows: a locking plate 312.1 is provided on the movable sleeve 312, and the locking plate 312.1 can be bent and deformed toward the inside of the movable sleeve 312 under the action of external force, and contact and press with the rod in the movable sleeve 312 to form a lock.

[0047] Specific reference Figure 2 As shown, in order to ensure the consistency between the locking plate 312.1 and the movable sleeve 312, the locking plate 312.1 is set to an arc shape consistent with the inner diameter of the movable sleeve 312, and the locking ring 320 squeezes the arc plate so that the arc plate bends toward the inside of the movable sleeve 312, and presses against the outer wall of the internal second rod 200 to form a locking state.

[0048] Preferably, in this embodiment, the locking piece 312.1 is an elastic piece, the elastic piece is molded on the movable sleeve 312, and the movable sleeve 312 has an avoidance hole capable of accommodating the passage of the elastic piece.

[0049] In order to enable the locking ring 320 to be smoothly mounted on the movable sleeve 312, a circular inner cavity is provided on the inner wall of the locking ring 320, and the locking plate 312.1 is squeezed through the circular inner wall. In this embodiment, the locking ring 320 is provided with a driving part 321 that can push the locking plate 312.1 toward the center of the movable sleeve 312.

[0050] Reference Figure 3 and Figure 4 As shown, in this embodiment, the locking ring 320 rotates around the central axis, so the driving part 321 also rotates accordingly. When it rotates to the position of the locking plate 312.1, the locking plate 312.1 is squeezed, so that the locking plate 312.1 is pushed toward the center, so that the locking plate 312.1 is tightly pressed against the outer end surface of the second rod 200.

[0051] Preferably, in this embodiment, the driving portion 321 is configured as a convex strip convexly provided on the inner wall of the locking ring 320 along the axis.

[0052] In this embodiment, one implementation of the location of the locking piece 312.1 is as follows:

[0053] A U-shaped hollow portion 312.2 is provided on the peripheral wall of the movable sleeve 312, and the hollow portion 312.2 surrounds a portion to form a locking piece 312.1 whose one end is connected to the movable sleeve 312.

[0054] Preferably, in order to correspond to the outer shape of the locking piece 312.1, the hollow portion 312.2 is a lying U-shape.

[0055] Reference Figure 2 As shown, the two circumferential ends of the locking plate 312.1 are respectively a locking end b and a connecting end, and the connecting end is integrally formed with the movable sleeve 312; at the same time, an avoidance hole is circumferentially arranged on the movable sleeve 312, and the shape of the avoidance hole is at least consistent with the locking plate 312.1, which can accommodate the bending and resetting of the locking plate 312.1; in this embodiment, in order to allow the locking plate 312.1 to bend freely and reduce contact, the shape of the avoidance hole is larger than the locking plate 312.1, that is, a gap is left between the three hole walls of the avoidance hole and the locking plate 312.1, and the gap is the hollow part 312.2 formed on the movable sleeve 312; when the locking end b of the locking plate 312.1 is bent and deformed, the end face has no contact, so it can bend or reset freely.

[0056] In this embodiment, the two circumferential ends of the locking plate 312.1 are respectively a fixed end a and a locking end b, and the locking end b can extend into the movable sleeve 312 and contact the rod; an unlocking groove 312.3 is provided on the outer surface of the fixed end a, and the unlocking groove 312.3 can accommodate the driving part 321.

[0057] The driving part 321 is a convex part arranged on the inner wall of the locking ring 320. The inner wall of the locking ring 320 matches the outer wall of the movable sleeve 312. Therefore, when the driving part 321 contacts the outer wall of the movable sleeve 312 during the rotation process, the locking ring 320 and the movable sleeve 312 are pushed apart, so that the locking ring 320 or the movable sleeve 312 is deformed.

[0058] Therefore, refer to Figure 5 As shown, in this embodiment, an unlocking groove 312.3 is provided at the connecting end of the locking plate 312.1, and the driving part 321 can be accommodated in the unlocking groove 312.3; when in the unlocking position, the driving part 321 cooperates with the unlocking groove 312.3. At this time, the inner wall of the locking ring 320 and the outer wall of the movable sleeve 312 are still matched, and no deformation will occur, thereby ensuring the appearance consistency of the plastic part.

[0059] In this embodiment, refer to Figure 6 As shown, in order to support the locking ring 320 and prevent the locking ring 320 from moving axially, a limiting sleeve 330 is also included. The limiting sleeve 330 is sleeved on the upper end of the movable sleeve 312 to limit the axial movement of the locking ring 320.

[0060] Preferably, in this embodiment, the limiting sleeve 330 is fixed to the end of the movable sleeve 312, and the outer diameter thereof is not less than the inner diameter of the locking ring 320. In the connected state, the limiting sleeve 330 is sleeved to the outside of the second rod 200.

[0061] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A telescopic rod locking structure of a swimming pool cleaning tool, comprising at least a first rod (100) and a second rod (200) which are sleeved together, wherein a first end of the first rod (100) is connected to a cleaning body, and a second end is movably connected to the second rod (200); Features: A locking assembly (300) is provided between the first rod (100) and the second rod (200), the locking assembly (300) comprising a fixing portion and a locking portion, the fixing portion being fixed to the first rod (100) / the second rod (200), the locking portion being movably connected to the second rod (200) / the first rod (100), and being capable of fixing the second rod (200) / the first rod (100), so that the first rod (100) and the second rod (200) have an active state and a locked state; The locking assembly (300) comprises a sleeve (310), the sleeve (310) being formed into a fixed sleeve (311) and a movable sleeve (312), and the outer sleeve of the movable sleeve (312) is provided with a locking ring (320); The fixing part is the area of ​​the fixing sleeve (311), and the locking part is the area of ​​the movable sleeve (312) and the locking ring (320); The movable sleeve (312) is provided with a locking piece (312.1), and the locking piece (312.1) can be bent and deformed toward the inside of the movable sleeve (312) under the action of an external force, and contact and press with a rod in the movable sleeve (312) to form a locking state.

2. The telescopic rod locking structure of the swimming pool cleaning tool according to claim 1, characterized in that: The first rod (100) is an outer tube, and the second rod (200) is an inner tube capable of extending into the first rod (100).

3. The telescopic rod locking structure of the swimming pool cleaning tool according to claim 1, characterized in that: The locking ring (320) is provided with a driving portion (321) capable of pushing the locking plate (312.1) toward the center of the movable sleeve (312).

4. The telescopic rod locking structure of the swimming pool cleaning tool according to claim 1, characterized in that: The locking piece (312.1) is an elastic piece, the elastic piece is formed on the movable sleeve (312), and the movable sleeve (312) has an escape hole capable of accommodating the passage of the elastic piece.

5. The telescopic rod locking structure of the swimming pool cleaning tool according to claim 1, characterized in that: A U-shaped hollow portion (312.2) is provided on the peripheral wall of the movable sleeve (312), and the surrounding portion of the hollow portion (312.2) forms a locking piece (312.1) with one end connected to the movable sleeve (312).

6. The telescopic rod locking structure of the swimming pool cleaning tool according to claim 3, characterized in that: The two ends of the locking plate (312.1) along the circumferential direction are respectively a fixed end (a) and a locking end (b), and the locking end (b) can extend into the interior of the movable sleeve (312) and contact the rod; an unlocking groove (312.3) is provided on the outer surface of the fixed end (a), and the unlocking groove (312.3) can accommodate the driving part (321).

7. The telescopic rod locking structure of the swimming pool cleaning tool according to claim 1, characterized in that: It also includes a limiting sleeve (330), which is sleeved on the upper end of the movable sleeve (312) to limit the movement of the locking ring (320) in the axial direction.

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