Telescopic rod with gear adjusting structure

Abstract

The utility model relates to the technical field of telescopic rods, in particular to a telescopic rod with a gear adjusting structure, which comprises a fixed rod and a movable rod capable of being movably sleeved in the fixed rod along the end of the fixed rod, and a plurality of gear grooves are sequentially arranged on the movable rod along the length direction. The fixing rod is provided with a pushable elastic shifting piece and an elastic clamping piece in butt joint with the shifting piece, and the shifting piece is provided with a shifting part used for pushing, a spring piece applying elastic force to the shifting part and an inclined plane guiding part arranged on the shifting part and in butt joint with the elastic clamping piece. The elastic clamping piece is provided with a fixed end fixed with the fixed rod, a deformation part extending along the fixed end, and a clamping part which is arranged at the end part of the deformation part and acts on the gear groove; the operation that the clamping part is automatically separated from the gear groove can be achieved, the clamping part does not need to be directly pushed by means of an inclined face, and therefore the gear groove and the clamping part can be clamped and matched more tightly.

Description

Technical Field

[0001] The utility model relates to the technical field of telescopic rods, in particular to a telescopic rod with a gear adjustment structure. Background Art

[0002] In order to adapt to different usage distances, telescopic rods are widely used. For example, in the field of household cleaning, the handheld part of some cleaning tools is provided with a telescopic rod structure with adjustable length. By adjusting its length, the cleaning tool can be used more freely at different distances. An existing telescopic rod is a new electric mopping machine described in the utility model patent authorization announcement number CN208784616U. When the locking structure is opened, the push plate is operated to be staggered with the notch. At this time, the movable rod is operated. During the extension and retraction process, the movable rod will cause the limit member to disengage from the corresponding adjustment groove through the notch and finally enter the cavity. Without the interference of the limit member, the movable rod can be freely extended and retracted. When the locking structure is closed, the movable rod is adjusted to a suitable position, and the push plate is reset. The reset movement of the push plate in the cavity will push the limit member into the accommodation space formed by the notch and the adjustment groove again, and the telescopic rod is limited under the interference of the limit member.

[0003] However, the structural setting in which the limit piece is disengaged by the guidance of the inclined surfaces will always have the problem of wear, and the setting of the inclined surfaces will cause the limit piece to easily disengage from the adjusting groove. Therefore, during long-term use, the limit piece is prone to slight movement in the adjusting groove due to wear, resulting in slight looseness between the two sections of the telescopic rod after locking, reducing the use effect, and even causing the limit piece to disengage by itself due to insufficient bearing force. Therefore, it is necessary to propose an improved technical solution to solve the above problems. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0005] A telescopic rod with a gear adjustment structure comprises a fixed rod and a movable rod which can be movably sleeved into the fixed rod along the end of the fixed rod, a plurality of gear slots are sequentially arranged on the movable rod along the length direction, a pushable elastic toggle member and an elastic clamping member docked with the toggle member are arranged on the fixed rod, the toggle member comprises a toggle part for pushing, a spring member applying elastic force to the toggle part, and an inclined guide part arranged on the toggle part and docked with the elastic clamping member, the elastic clamping member comprises a fixed end fixed to the fixed rod, a deformation part extending along the fixed end, and a clamping part arranged at the end of the deformation part and acting on the gear slot;

[0006] Among them, the toggle part drives the inclined guide part through the action force of the spring part, so that the inclined guide part causes the deformation part to be deformed, and the clamping part is clamped into the gear slot due to the deformation of the deformation part; the toggle part drives the inclined guide part by overcoming the action force of the spring part, so that the inclined guide part is separated from the deformation part, and the clamping part is separated from the gear slot due to the recovery of the deformation part.

[0007] Preferably, a plane portion is provided on the movable rod along the length direction, and the plurality of gear slots are all provided on the plane portion.

[0008] Preferably, the end of the fixing rod is expanded so that a space for accommodating the elastic toggle member and the elastic clamping member is formed between the plane portion and the end of the fixing rod.

[0009] Preferably, a sleeve-shaped frame is fixedly installed inside the end of the fixing rod, and the toggle portion, the spring member and the elastic clamping member are all arranged on the sleeve-shaped frame.

[0010] Preferably, a receiving groove is provided on the sleeve-shaped frame, the toggle portion has a sliding end slidably connected between the receiving groove and the fixed rod, and a toggle end formed on the sliding end and extending beyond the fixed rod, the spring member and the elastic clip are both installed in the receiving groove, and the spring member and the elastic clip are respectively corresponding to the front and rear positions of the sliding end, and the inclined guide portion is arranged at the rear position of the sliding end.

[0011] Preferably, a first through hole is opened in the accommodating groove, and the accommodating groove is located on both sides of the first through hole and formed with limit blocks respectively, the fixed end is fixedly installed between the limit block and the rear end of the accommodating groove, the deformation part is located between the two limit blocks, and the clamping part corresponds to the gear slot along the first through hole.

[0012] Preferably, a spring hole docking with the spring member is formed at the front end of the sliding end, one end of the spring member is positioned and inserted in the spring hole, and the other end of the spring member abuts against the front end of the accommodating groove.

[0013] Preferably, T-shaped reinforcement portions are provided at both the front and rear ends of the accommodating groove.

[0014] Preferably, a blocking ring is provided at the end of the sleeve-shaped frame, the blocking ring abuts against the end of the fixing rod, and a protective reinforcement sleeve is also fixedly provided outside the end of the fixing rod, the protective reinforcement sleeve covers the blocking ring, and a second through hole is opened on the protective sleeve and the fixing rod for the toggle end to pass through.

[0015] Preferably, a toggle cap is connected to the toggle end for easy toggle, and the toggle cap is located outside the protective reinforcement sleeve.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model provides a plurality of gear slots and an elastic clamping member that can be elastically deformed to connect with the gear slots. The elastic toggle member is used to act on the elastic clamping member. When the elastic toggle member is not toggled, the toggle part is pushed by the elastic member, so that the end of the elastic clamping member is pressed against the end of the elastic clamping member through the inclined guide part, so that the end of the elastic clamping member is bent and deformed toward the gear slot under the guidance of the inclined guide part. The bending deformation is generated by the deformation part. At this time, the clamping part will be pushed into the gear slot, thereby completing the fixing effect of the fixed rod and the movable rod. When the elastic toggle member is toggled, the toggle part moves in the direction of overcoming the elastic force of the elastic member. Thereby, the inclined guiding part is separated from the end of the elastic clip, that is, the inclined guiding part is separated from the elastic clip, and the deformation part loses the constraint and will be reset, and the clip part is driven to separate from the gear slot during the reset, and the length of the movable rod extending from the fixed rod can be adjusted at this time; through this arrangement, the operation of automatically separating the clip part from the gear slot can be realized without the need to directly push the clip part with the aid of the inclined surface, so a tighter clip fit between the gear slot and the clip part can be achieved, which can be achieved by using a semicircular structure, or a trapezoidal, triangular, square or other ingenious special-shaped structure, and the flexibility of the structural design and the tightness of the fit can be further improved.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the partial explosion structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the utility model in a non-operating state;

[0023] Figure 4 It is a schematic diagram of the partial cross-section structure of the utility model after the elastic toggle member is toggled;

[0024] Figure 5 It is a schematic diagram of the structure in which the elastic telescopic member and the elastic clamping member are integrated on the sleeve-shaped frame in the utility model;

[0025] Figure 6 The utility model is a schematic diagram of the split structure of the elastic telescopic member, the elastic clamping member and the sleeve-shaped frame.

[0026] The reference numerals and names in the figures are as follows:

[0027] Fixed rod 10, movable rod 20, gear slot 21, plane portion 22, elastic toggle member 30, toggle portion 31, sliding end 311, toggle end 312, spring hole 313, spring member 32, inclined guide portion 33, elastic snap-fit ​​member 40, fixed end 41, deformation portion 42, snap-fit ​​portion 43, sleeve-shaped skeleton 50, accommodating slot 51, first through hole 52, limit block 53, T-shaped reinforcement portion 54, blocking ring 55, protective reinforcement sleeve 60, second through hole 61, toggle cap 62. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-6 In an embodiment of the utility model, a telescopic rod with a gear adjustment structure includes a fixed rod 10 and a movable rod 20 that can be movably sleeved into the fixed rod 10 along the end of the fixed rod 10, wherein the ends of the fixed rod 10 and the movable rod 20 can be connected to other fixed structures, so that they can be selectively used for hand-held and installed tools. Taking household cleaning tools as an example, it is applied to household cleaning tools, the movable rod 20 is used to connect cleaning tools, and the fixed rod 10 is used for hand-held. In this embodiment, a plurality of gear slots 21 are sequentially arranged on the movable rod 20 along the length direction, and the gear adjustment slot is used to be engaged with the fixed rod 10, so as to achieve the purpose of gear adjustment. The distance between each two adjacent gear slots 21 and the number of the gear slots 21 are set according to the product use requirements. In general, the distance between each two adjacent gear adjustment slots is equal, so that the adjustment of each gear is a unit distance;

[0030] The fixed rod 10 is provided with a pushable elastic toggle member 30 and an elastic clamping member 40 docked with the elastic toggle member 30. The elastic force of the elastic toggle member 30 is used to keep the elastic toggle member 30 in a locked state, and the elastic force generated by the elastic clamping member 40 is used to keep the elastic clamping member 40 in an unlocked state. Specifically, the elastic toggle member 30 has a toggle portion 31 for pushing, a spring member 32 that applies elastic force to the toggle portion 31, and an inclined guide portion 33 arranged on the toggle portion 31 and docked with the elastic clamping member 40. The elastic clamping member 40 has a fixed end 41 fixed to the fixed rod 10, a deformation portion 42 extending along the fixed end 41, and a clamping portion 43 arranged at the end of the deformation portion 42 and acting on the gear slot 21.

[0031] Among them, the toggle part 31 drives the inclined guide part 33 through the force of the spring part 32, that is, when not in operation, due to the elastic force of the spring part 32 itself, the inclined guide part 33 deforms the deformation part 42, and the clamping part 43 is clamped into the gear slot 21 due to the deformation of the deformation part 42; the toggle part 31 drives the inclined guide part 33 by overcoming the force of the spring part 32, that is, the elastic toggle part 30 is operated manually or in other ways, so that the inclined guide part 33 is disengaged from the elastic clamping part 40, and the clamping part 43 is disengaged from the gear slot 21 due to the recovery of the deformation part 42.

[0032] Therefore, the utility model provides a plurality of gear slots 21 and provides an elastic clamping member 40 that can be elastically deformed to dock with the gear slot 21, and uses the elastic toggle member 30 to act on the elastic clamping member 40. When the elastic toggle member 30 is not toggled, the toggle portion 31 is pushed by the elastic member, thereby the inclined guide portion 33 is used to resist the end of the elastic clamping member 40, so that the end of the elastic clamping member 40 is bent and deformed toward the gear slot 21 under the guidance of the inclined guide portion 33, and the bending deformation is generated by the deformation portion 42. At this time, the clamping portion 43 will be pushed into the gear slot 21, thereby completing the fixing of the fixed rod 10 and the movable rod 20; when the elastic toggle member 30 is toggled, that is, the toggle portion 31 is pushed along the direction of overcoming the elastic deformation of the spring member 32. The clamping portion 43 is moved in the direction of the force, thereby disengaging the inclined surface guiding portion 33 from the end of the elastic clamping portion 40, that is, the inclined surface guiding portion 33 is disengaged from the elastic clamping portion 40, and the deformation portion 42 loses its constraint and will be reset, and when resetting, it drives the clamping portion 43 to disengage from the gear slot 21, and at this time, the length of the movable rod 20 extending from the fixed rod 10 can be adjusted; through this arrangement, the clamping portion 43 can automatically disengage from the gear slot 21 without the need to directly push the clamping portion 43 with the aid of the inclined surface, so that the gear slot 21 and the clamping portion 43 can be more tightly clamped together, which can be achieved by using a semicircular structure, or a trapezoidal, triangular, square or other ingenious special-shaped structure, and the flexibility of the structural design and the tightness of the fit can be further improved.

[0033] See also Figure 1-4 In this embodiment, a plane portion 22 is provided on the movable rod 20 along the length direction, and a plurality of gear slots 21 are provided through the plane portion 22, so that the gear slots 21 can extend on the plane portion 22 along the length direction perpendicular to the movable rod 20, thereby expanding the setting space of the gear slots 21, and increasing the contact area between the gear slots 21 and the clamping portion 43, so that the firmness after clamping can be improved. On this basis, the end of the fixed rod 10 is further expanded to form a space for accommodating the elastic toggle member 30 and the elastic clamping member 40 between the plane portion 22 and the end of the fixed rod 10, so that the overall structural design is compact, and the elastic toggle member 30 and the elastic clamping member 40 are reasonably integrated into the fixed rod 10;

[0034] See also Figure 2-6In this embodiment, with respect to the installation design of the elastic toggle member 30 and the elastic clip member 40, a sleeve-shaped frame 50 is fixedly installed inside the end of the fixed rod 10, and the toggle portion 31, the spring member 32 and the elastic clip member 40 are all arranged on the sleeve-shaped frame 50; specifically, a receiving groove 51 is arranged on the sleeve-shaped frame 50, and the receiving groove 51 is reasonably designed to abut against the screen portion of the movable rod 20. Furthermore, a plane groove can be arranged on the movable rod 20 along the length direction, and the plane portion 22 is the bottom of the plane groove, and the receiving groove 51 is arranged at the bottom of the plane groove. The structure of the sleeve-shaped frame 50 is concavely formed inwardly, and the concave part is just adapted to the plane groove, so that the sleeve-shaped frame 50 can be more firmly arranged between the fixed rod 10 and the movable rod 20; the arrangement of the receiving groove 51 is to install the toggle part 31, the spring member 32 and the elastic clamping member 40. Specifically, the toggle part 31 has a sliding end 311 slidably connected between the receiving groove 51 and the fixed rod 10, and a toggle end 312 formed on the sliding end 311 and penetrating outside the fixed rod 10. The spring member 32 and the elastic clamping member 40 are both installed in the receiving groove 51. The receiving groove 51 is provided with a first through hole 52, and the receiving groove 51 is provided with a limited block 53 formed on both sides of the first through hole 52, and the fixed end 41 is fixed. It is installed between the limit block 53 and the rear end of the accommodating groove 51, and the deformation portion 42 is located between the two limit blocks 53, so that the clamping portion 43 corresponds to the gear groove 21 along the first through hole 52; based on the fixation of the spring member 32, a spring hole 313 connected to the spring member 32 is opened at the front end of the sliding end 311, one end of the spring member 32 is positioned and inserted in the spring hole 313, and the other end of the spring member 32 abuts against the front end of the accommodating groove 51. On this basis, T-shaped reinforcement portions 54 are provided at the front and rear ends of the accommodating groove 51 to further improve the overall strength.

[0035] See also Figure 2-6 In this embodiment, a blocking ring 55 is provided at the end of the sleeve-shaped skeleton 50, and the blocking ring 55 abuts against the end of the fixed rod 10, and a protective reinforcement sleeve 60 is fixedly provided outside the end of the fixed rod 10, and the protective reinforcement sleeve 60 covers the blocking ring 55, and a second through hole 61 for the toggle end 312 to pass through is opened on the protective sleeve and the fixed rod 10; a toggle cap 62 for easy toggle is connected to the toggle end 312, and the toggle cap 62 is located outside the protective reinforcement sleeve 60, so that the overall design is reasonable, and the aesthetics and strength at the connection position are improved.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A telescopic rod with a gear adjustment structure, characterized in that: The invention comprises a fixed rod and a movable rod which can be movably sleeved into the fixed rod along the end of the fixed rod, a plurality of gear slots are sequentially arranged on the movable rod along the length direction, a pushable elastic toggle member and an elastic clamping member docked with the toggle member are arranged on the fixed rod, the toggle member comprises a toggle part for pushing, a spring member applying elastic force to the toggle part, and an inclined guide part arranged on the toggle part and docked with the elastic clamping member, the elastic clamping member comprises a fixed end fixed with the fixed rod, a deformation part extending along the fixed end, and a clamping part arranged at the end of the deformation part and acting on the gear slot; Among them, the toggle part drives the inclined guide part through the action force of the spring part, so that the inclined guide part causes the deformation part to be deformed, and the clamping part is clamped into the gear slot due to the deformation of the deformation part; the toggle part drives the inclined guide part by overcoming the action force of the spring part, so that the inclined guide part is separated from the deformation part, and the clamping part is separated from the gear slot due to the recovery of the deformation part.

2. The telescopic rod with a gear adjustment structure according to claim 1, characterized in that: A plane portion is arranged on the movable rod along the length direction, and a plurality of gear slots are arranged on the plane portion.

3. The telescopic rod with a gear adjustment structure according to claim 2, characterized in that: The end of the fixing rod is expanded so that a space for accommodating the elastic toggle member and the elastic clamping member is formed between the plane portion and the end of the fixing rod.

4. A telescopic rod with a gear adjustment structure according to any one of claims 1 to 3, characterized in that: A sleeve-shaped frame is fixedly installed inside the end of the fixing rod, and the toggle part, the spring part and the elastic clamping part are all arranged on the sleeve-shaped frame.

5. The telescopic rod with a gear adjustment structure according to claim 4, characterized in that: A receiving groove is provided on the sleeve-shaped frame, and the toggle part has a sliding end slidably connected between the receiving groove and the fixed rod, and a toggle end formed on the sliding end and extending beyond the fixed rod. The spring member and the elastic clip are both installed in the receiving groove, and the spring member and the elastic clip are respectively corresponding to the front and rear positions of the sliding end, and the inclined guide part is arranged at the rear position of the sliding end.

6. The telescopic rod with a gear adjustment structure according to claim 5, characterized in that: A first through hole is opened in the accommodating groove, and the accommodating groove is located on both sides of the first through hole to form limit blocks respectively, the fixed end is fixedly installed between the limit block and the rear end of the accommodating groove, the deformation part is located between the two limit blocks, and the clamping part corresponds to the gear slot along the first through hole.

7. The telescopic rod with a gear adjustment structure according to claim 5, characterized in that: The front end of the sliding end is provided with a spring hole connected to the spring component, one end of the spring component is positioned and inserted in the spring hole, and the other end of the spring component abuts against the front end of the accommodating groove.

8. The telescopic rod with a gear adjustment structure according to claim 5, characterized in that: T-shaped reinforcement parts are arranged at the front end and the rear end of the accommodating groove.

9. The telescopic rod with a gear adjustment structure according to claim 5, characterized in that: A blocking ring is arranged at the end of the sleeve-shaped frame, the blocking ring abuts against the end of the fixed rod, and a protective reinforcement sleeve is fixedly arranged outside the end of the fixed rod, the protective reinforcement sleeve covers the blocking ring, and a second through hole is opened on the protective sleeve and the fixed rod for the toggle end to pass through.

10. The telescopic rod with a gear adjustment structure according to claim 9, characterized in that: A toggle cap for easy toggle is connected to the toggle end, and the toggle cap is located outside the protective reinforcement sleeve.

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