Telescopic rod and locking structure of telescopic rod

Abstract

The utility model discloses a telescopic rod and a locking structure of the telescopic rod, the telescopic rod comprises a rod piece and the locking structure, and the rod piece comprises an inner rod and an outer rod; the locking structure comprises an inner sleeve and an outer sleeve arranged on the inner sleeve in a sleeving mode. The inner sleeve is provided with a surrounding wall, the surrounding wall is provided with an acting part which is divided into an unlocking section and a locking section, a tongue plate is formed on the locking section, one end of the tongue plate is connected with the surrounding wall, and the thickness of the tongue plate is thicker when the tongue plate is closer to the other end; crimping blocks protrude from the inner peripheral wall of the outer sleeve; and the outer rod is inserted into the inner sleeve. The crimping block is adjacent to the unlocking section when corresponding to the unlocking section, and the tongue plate is stationary; and when corresponding to the locking section, the crimping block crimps the tongue plate to generate deflection so as to tightly press the inner rod. Therefore, the effect of ensuring that the locking structure definitely and firmly locks the rod piece to maintain the rod piece at the required length can be achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to a telescopic rod, in particular to a telescopic rod and a locking structure of the telescopic rod. BACKGROUND

[0002] As to the telescopic rod capable of being controlled and unlocked, since the desired length can be locked, it is suitable for the tool, such as mop or broom, which needs to adjust the length of the rod according to the height of the user.

[0003] However, the length locking ability of the known telescopic rod is insufficient, which causes the telescopic rod to retract when the user uses it, such as mopping or sweeping, and the user has to adjust the length again while mopping or sweeping, which has been a long-term problem for many users.

[0004] Therefore, how to overcome the shortcomings of the prior art is a major issue that the present applicant wants to solve. CONTENT OF THE INVENTION

[0005] The present application aims to provide a telescopic rod and a locking structure of the telescopic rod, which can enhance the locking strength of the locking structure and ensure that it is not easy to shift once locked.

[0006] In order to achieve the above-mentioned purpose, the present application provides a locking structure of a telescopic rod, comprising: an inner sleeve, which is defined with a length direction according to its length and is defined with a radial direction perpendicular to the length direction, the inner sleeve has a surrounding wall, the surrounding wall is defined with a surrounding direction and has at least one acting portion in the surrounding direction, the acting portion is divided into an unlocking section and a locking section along the surrounding direction, the surrounding wall is formed with a tongue plate capable of being deflected along the radial direction in the locking section, the tongue plate has a root end connected to the surrounding wall and a free end away from the root end, and the thickness of the tongue plate is thicker closer to the free end; and an outer sleeve, which is rotatably sleeved on the inner sleeve and has an inner circumferential wall, the inner circumferential wall protrudes at least one pressing block along the radial direction; wherein, when the pressing block corresponds to the unlocking section, the pressing block is adjacent to the unlocking section or has a gap between the pressing block and the unlocking section, the tongue plate is in a static state; when the pressing block corresponds to the locking section, the pressing block presses the tongue plate to deflect the tongue plate, and the tongue plate is in a deflected state.

[0007] The present application further provides a telescopic rod, comprising: a rod member, which comprises an inner rod and an outer rod movably inserted into each other; and a locking structure as described above, the inner sleeve is divided into a front section and a rear section along the length direction, the front section has the surrounding wall, the outer rod is inserted into the rear section, and the at least one tongue plate tightly presses the inner rod in the deflected state.

[0008] Compared with the prior art, the application has the following effects: the locking structure can ensure that the rod is locked at a required length and cannot be retracted due to the use of the user. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is a perspective assembly view of the telescopic rod of the application.

[0010] Figure 2 It is a perspective exploded view of the outer rod of the telescopic rod of the application before being inserted into the inner sleeve.

[0011] Figure 3 It is a perspective exploded view of the telescopic rod of the application.

[0012] Figure 4 It is a perspective exploded view of the locking structure of the telescopic rod of the application.

[0013] Figure 5 It is a longitudinal section view of the application. Figure 1

[0014] It is a transverse section view (before action) of the application. Figure 6 Figure 1 It is a transverse section view (during action) of the application.

[0015] Figure 7 Figure 1 It is a transverse section view (after action) of the application.

[0016] Figure 8 Figure 1

[0017] In the drawings, reference signs are used:

[0018] 100: locking structure

[0019] 1: inner sleeve

[0020] 1a: front section

[0021] 1b: rear section

[0022] 11: surrounding wall

[0023] 111: outer side

[0024] 1111: first stop portion

[0025] 1112: second stop portion

[0026] 112: cutout

[0027] 15: tongue plate

[0028] 15a: connecting section ​​​​

[0029] 15b: thickening section

[0030] 151: root end

[0031] 152: free end

[0032] 155: convex rib

[0033] 1552: slope

[0034] 3: outer sleeve

[0035] 31: inner peripheral wall

[0036] 32: limiting block

[0037] 321: first side edge

[0038] 322: second side edge

[0039] 33: crimping block

[0040] 700: rod

[0041] 7: inner rod

[0042] 8: outer rod

[0043] D1: length direction

[0044] D2: radial direction

[0045] D3: circumferential direction

[0046] P: acting portion

[0047] P1: unlocking section

[0048] P2: locking section

[0049] S1: static state

[0050] S2: deflection state DETAILED DESCRIPTION

[0051] The detailed description and technical content of the present application are described below in conjunction with the accompanying drawings, however the accompanying drawings are provided for reference and illustration only, and are not intended to limit the present application.

[0052] The present application provides a telescopic rod and a locking structure of the telescopic rod, which is used to lock the rod after adjusting the required length, and can be unlocked to adjust again, and thus can be applied to tools such as mops or brooms.

[0053] As shown in Figure 1 and Figure 3 , the telescopic rod of the present application comprises a locking structure 100 and a telescopic rod 700, which can be locked or unlocked by the locking structure 100.

[0054] As shown in Figure 1 , Figure 3 and Figure 5 , the rod member 700 comprises an inner rod 7 and an outer rod 8, the outer rod 8 is a hollow rod, and the inner rod 7 is movably inserted into the outer rod 8, so that the inner rod 7 can be extended and retracted relative to the outer rod 8.

[0055] As shown in Figures 1 to 6 , the locking structure 100 is sleeved on the rod member 700 and comprises an inner sleeve 1 and an outer sleeve 3, both the inner sleeve 1 and the outer sleeve 3 are hollow because they are sleeves, and the outer sleeve 3 is rotatably sleeved on the inner sleeve 1.

[0056] The inner sleeve 1, as shown in Figure 2 , is defined with a length direction (equivalent to the axial direction) D1 according to its length, and is defined with a radial direction D2 perpendicular to the length direction D1. The inner sleeve 1, as shown in Figure 2 , Figure 3 , can be divided into a front section 1a and a rear section 1b along the length direction D1, one end of the outer rod 8 is inserted into the rear section 1b, and the front section 1a has a surrounding wall 11 in a surrounding shape.

[0057] The surrounding wall 11, as shown in Figure 6 , is defined with a surrounding direction D3, and the front half of the surrounding wall 11 is formed with at least two clamping jaws (not marked with reference numerals), and the rear half has at least one acting portion P in the surrounding direction D3. The number of the acting portion P is not limited in the present application, which can be one or at least two, and in the present embodiment, it is two, and preferably opposite to each other, but for the sake of simplicity of the description, only one of the acting portions P will be described below. In addition, the acting portion P or the surrounding wall 11 has an outer side surface 111.

[0058] The acting portion P, as shown in Figure 4 , Figure 6 , is divided into an unlocking section P1 and a locking section P2 along the surrounding direction D3. The locking section P2 is formed with a tongue plate 15, and the present application does not limit how to form the tongue plate 15, and specifically, the surrounding wall 11 is cut to form the required tongue plate 15 by opening at least two cutting grooves 112 at the locking section P2. The tongue plate 15 has a root end 151 and a free end 152 which are away from each other in the surrounding direction D3, and the root end 151 is still connected to the surrounding wall 11, so that the tongue plate 15 can be elastically deflected along the radial direction D2 with the root end 151 as the axis.

[0059] and as shown in Figure 6As shown, the thickness of the tongue plate 15 is specially designed: the thickness of the portion near the free end 152 is greater than the thickness of the portion near the root end 151; or, it can also be designed in the form that the closer to the free end 152, the greater the thickness. In detail, the tongue plate 15 can also be divided into a connecting section 15a and a thickened section 15b along the circumferential direction D3, the connecting section 15a has the aforementioned root end 151, the thickened section 15b has the aforementioned free end 152, and the thickness of the thickened section 15b can be designed in the form that it is greater than the thickness of the connecting section 15a; or, it can also be designed in the form that the thickness of the thickened section 15b gradually increases from the root end 151 to the free end 152, and the thickness of the connecting section 15a is equal to or close to the thickness of the thinnest part of the thickened section 15b.

[0060] The outer sleeve 3 is sleeved on the inner sleeve 1, and the outer sleeve 3 can rotate relative to the inner sleeve 1 along the circumferential direction D3. As shown in Figure 4 、 Figure 5 As shown, the outer sleeve 3 has an inner circumferential wall 31 at the front section thereof, the inner circumferential wall 31 faces the aforementioned outer side surface 111 of the circumferential wall 11, and the inner circumferential wall 31 protrudes in the radial direction D2 and towards the outer side surface 111 with at least one crimping block 33. The number of crimping blocks 33 depends on the number of working portions P (or tongue plates 15), so the crimping blocks 33 in the present embodiment are also provided as two.

[0061] Therefore, as shown in Figures 4 to 8 When the crimping block 33 of the outer sleeve 3 corresponds to the unlocking section P1, the crimping block 33 only abuts (or only leaves a gap with, not shown in the figure) the unlocking section P1 without crimping the unlocking section P1, so the tongue plate 15 can be in a static state S1 (see Figure 6 ), at this time, since the tongue plate 15 is not crimped, it will not press (for example, tightly press) the inner rod 7, and the inner rod 7 is not locked and can be adjusted in length; after the user adjusts the length of the rod member 700, the outer sleeve 3 can be rotated relative to the inner sleeve 1, so that the crimping block 33 first passes through the connecting section 15a, and then corresponds to the thickened section 15b to be crimped, and through crimping, the tongue plate 15 is elastically deflected along the radial direction D2 and towards the inner rod 7, so that the tongue plate 15 is in a deflected state S2 (see Figure 8 ), the elastically deflected tongue plate 15 will press (for example, tightly press) the inner rod 7 to force the inner rod 7 to be unable to be adjusted in length relative to the outer rod 8, thus completing the locking of the rod member 700.

[0062] Therefore, when the locking structure 100 in the present application has the acting portions P (or the tongue plates 15) arranged opposite to each other, the two tongue plates 15 will be pressed against the two opposite sides of the inner rod 7 by the elastic deflection of the thickened segments 15b, and the two pressing blocks 33 are tightly clamped between the thickened segments 15b and the inner circumferential wall 31 and are not easy to be displaced, unless the user applies an external force to rotate the outer sleeve 3. In this way, the locking structure 100 in the present application can clearly and firmly lock the rod member 700 to maintain a desired length and will not be retracted due to the user's effort.

[0063] As shown in Figures 2 to 4 and Figures 6 to 8 , in order to have a proper hand feeling when rotating the outer sleeve 3, a protruding rib 155 can be protruded from the outer surface of the tongue plate 15 towards the inner circumferential wall 31, and the protruding rib 155 is preferably located between the root end 151 and the free end 152. Therefore, when the pressing block 33 is rotated from the connecting segment 15a to the thickened segment 15b, a clear vibration feeling will be generated by passing through the protruding rib 155.

[0064] Preferably, in order to make the pressing block 33 more smoothly climb the protruding top of the protruding rib 155, the side of the protruding rib 155 close to the connecting segment 15a can be designed as a slope 1552.

[0065] In addition, as shown in Figures 2 to 4 and Figures 6 to 8 , in order to ensure that the pressing block 33 can reach the fixed point position before and after rotation and will not be rotated too much, a first stop portion 1111 and a second stop portion 1112 can be protruded from the surrounding wall 11 of the inner sleeve 1 towards the inner circumferential wall 31, and a limiting block 32 is protruded from the inner circumferential wall 31 of the outer sleeve 3 towards the outer side surface 111, and the pressing block 33 is protruded from the limiting block 32, and the limiting block 32 has a first side edge 321 and a second side edge 322 opposite to each other.

[0066] Therefore, when in the aforementioned static state S1, the pressing block 33 will correspond to the unlocking segment P1 of the acting portion P (see Figure 6 ) because the first side edge 321 of the limiting block 32 is stopped by the first stop portion 1111; when in the aforementioned deflection state S2, the pressing block 33 will press the thickened segment 15b of the tongue plate 15 (see Figure 8 ) because the second side edge 322 of the limiting block 32 is stopped by the second stop portion 1112.

[0067] In summary, the telescopic rod and the locking structure of the telescopic rod in the present application can achieve the expected use purpose and effect, and can solve the defects of the prior art, and therefore a patent application is proposed.

[0068] The above descriptions are only the preferred embodiments of the present application, not intended to limit the patent protection scope of the present application, and any equivalent structural changes made according to the content of the present application and the drawings are also included in the patent protection scope of the present application.

Claims

1. A locking structure for a telescopic rod, characterized in that, include: An inner sleeve has a length direction defined by its own length and a radial direction defined perpendicular to the length direction. The inner sleeve has a surrounding wall, which has a surrounding direction and at least one actuating part in the surrounding direction. The actuating part is divided into an unlocking section and a locking section along the surrounding direction. The surrounding wall has a tongue plate formed in the locking section that can deflect along the radial direction. The tongue plate has a root end connected to the surrounding wall and a free end away from the root end, and the thickness of the tongue plate increases as it approaches the free end. as well as An outer sleeve is rotatably fitted onto the inner sleeve and has an inner peripheral wall, wherein at least one pressing block protrudes from the inner peripheral wall along the radial direction; When the pressing block corresponds to the unlocking section, the pressing block is adjacent to the unlocking section or there is a gap between the pressing block and the unlocking section, and the tongue plate is in a stationary state; when the pressing block corresponds to the locking section, the pressing block presses the tongue plate until the tongue plate is tilted, and the tongue plate is in a tilted state.

2. The locking structure of the telescopic rod as described in claim 1, characterized in that, The functional part and the pressing block are both provided in pairs, and each of the functional parts has a tongue plate formed on the surrounding wall.

3. The locking structure of the telescopic rod as described in claim 2, characterized in that, The two said actuating parts are opposite to each other on the surrounding wall, and the two said tongue plates are also opposite to each other on the surrounding wall.

4. The locking structure of the telescopic rod as described in claim 1, characterized in that, The inner sleeve has a first stop and a second stop, and the inner peripheral wall of the outer sleeve also has at least one limiting block protruding radially. The pressing block protrudes from the limiting block. The limiting block has a first side and a second side. The first side is blocked by the first stop in the static state, and the second side is blocked by the second stop in the swaying state.

5. The locking structure of the telescopic rod as described in claim 4, characterized in that, The functional part has an outer side surface facing the inner peripheral wall, and the first stop part and the second stop part protrude from the outer side surface away from each other toward the inner peripheral wall.

6. The locking structure of the telescopic rod as described in claim 1, characterized in that, The tongue plate is divided into a connecting section and a thickened section along the circumferential direction. The connecting section has the root end, and the thickened section has the free end. The thickness of the thickened section gradually increases from the root end toward the free end.

7. The locking structure of the telescopic rod as described in claim 1, characterized in that, One side of the tongue plate has a rib protruding towards the inner peripheral wall, and the rib is located between the root end and the free end of the tongue plate.

8. The locking structure of the telescopic rod as described in claim 7, characterized in that, One side of the rib has a slope.

9. The locking structure of the telescopic rod as described in claim 1, characterized in that, The inner sleeve is divided into a front section and a rear section along the length direction, and the front section has the surrounding wall.

10. A telescopic pole, characterized in that, include: A member consists of an inner member and an outer member that move and intersect with each other; as well as A locking structure as described in any one of claims 1 to 8, sleeved on the rod, the inner sleeve being divided into a front section and a rear section along the length direction, the front section having the surrounding wall, the outer rod being inserted into the rear section, and the at least one tongue plate pressing tightly against the inner rod in the swaying state.

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