Clamping connecting piece for telescopic rod and telescopic rod

Abstract

The clamping connecting piece for the telescopic rod comprises a hollow sleeving base, the hollow sleeving base comprises a large-aperture section and a small-aperture section, and a jacking mechanism capable of achieving jacking and fixing of a hollow pipe arranged in the small-aperture section in a sleeved mode is arranged on the upper portion of the small-aperture section. A connecting mechanism and an adjusting clamping mechanism are arranged at the upper part of the large-aperture section, the connecting mechanism can realize the connection between the hollow pipe sleeved in the large-aperture section and the hollow sleeving seat, the adjusting clamping mechanism comprises a positioning pin, and the positioning pin can be inserted into or separated from an adjusting hole formed in the hollow pipe sleeved in the large-aperture section; the telescopic rod comprises a plurality of hollow pipes, every two adjacent hollow pipes can be connected in a sleeved mode end to end, and the front ends of the corresponding hollow pipes are each provided with a corresponding clamping connecting piece for the telescopic rod. The clamping operation of the clamping connecting piece is convenient, and meanwhile the appearance is neat, so that the overall attractiveness of the telescopic rod is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of telescopic rod processing and manufacturing, in particular to a clamping connector for a telescopic rod and a telescopic rod. Background Technique

[0002] The telescopic rod is an important component of an aerial tree trimmer. By using the telescopic function of the telescopic rod, the trimming range can be modified. Basically, the existing telescopic rods on aerial tree trimmers achieve telescopic positioning by using a pin for positioning, that is, by inserting a pin into a corresponding positioning hole to achieve the positioning of two adjacent telescopic tubes. Due to the large clearance between the pin and the positioning hole, during the use of the telescopic rod, relative movement may occur between two adjacent telescopic tubes, thereby reducing the user experience of the telescopic rod. To further prevent relative movement between two adjacent telescopic tubes, in the prior art, a hoop method is generally adopted to further fix the corresponding telescopic tube. Although the hoop can be used to tightly hold the corresponding telescopic tube, the hoop method has cumbersome operation. At the same time, the hoop needs to be combined with bolts to achieve clamping, and its appearance is not beautiful. When there are many hoops on the telescopic rod, it will also lead to the problem that the overall appearance of the telescopic rod is not beautiful. Content of the Utility Model

[0003] The purpose of the utility model is to provide a clamping connector for a telescopic rod and a telescopic rod. The clamping operation of the clamping connector is convenient and the appearance is neat, thereby facilitating the improvement of the overall aesthetics of the telescopic rod.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a clamping connector for a telescopic rod, including a hollow socket seat. The hollow socket seat includes a large-aperture section and a small-aperture section. At the upper part of the small-aperture section, a pressing mechanism is provided to press and fix a hollow tube sleeved in the small-aperture section. At the upper part of the large-aperture section, a connecting mechanism and an adjusting clamping mechanism are provided. The connecting mechanism can realize the connection between the hollow tube sleeved in the large-aperture section and the hollow socket seat. The adjusting clamping mechanism includes a positioning pin, and the positioning pin can be inserted into or disengaged from an adjusting hole provided on the hollow tube sleeved in the large-aperture section.

[0005] Preferably, the pressing mechanism includes a first clamping plate and a pressing plate. An installation hole is provided at the upper part of the small-aperture section. The pressing plate is movably sleeved in the installation hole. One end of the first clamping plate is hinged above the installation hole. A convex block is fixedly provided at the lower part of the first clamping plate. When the first clamping plate is in a clamped state, the convex block can press the pressing plate against the outer side wall of the hollow tube sleeved in the small-aperture section.

[0006] Further, the adjustment clamping mechanism further includes an unlocking pressing plate and a spring. The middle part of the unlocking pressing plate is hinged to the upper part of the large-diameter section. The positioning pin is connected to the lower part of the front end of the unlocking pressing plate. The spring is clamped between the lower part of the rear end of the unlocking pressing plate and the upper side wall of the large-diameter section.

[0007] Further, the upper part of the positioning pin is hinged to the lower part of the front end of the unlocking pressing plate by a first hinge shaft.

[0008] Further, a guide tube sleeved outside the positioning pin is arranged on the upper part of the large-diameter section. The guide tube is communicated with a positioning hole arranged on the upper part of the large-diameter section.

[0009] Further, the connecting mechanism includes a bolt, and a through hole matched with the bolt is arranged on the upper part of the large-diameter section.

[0010] A telescopic rod includes a plurality of the above-mentioned clamping connectors for telescopic rods. The telescopic rod further includes a plurality of hollow tubes. Two adjacent hollow tubes can be sleeved end to end. A corresponding clamping connector for telescopic rods is arranged at the front end of each corresponding hollow tube. A plurality of adjustment holes are arranged at equal intervals on the corresponding hollow tubes. The positioning pin can be inserted into the corresponding adjustment holes. A threaded hole corresponding to the through hole is arranged on the hollow tube fixedly sleeved in the large-diameter section. After the bolt penetrates through the through hole, it can be tightened in the threaded hole.

[0011] The beneficial effects of the present utility model are as follows: The structure of the present utility model is simple and convenient for processing and manufacturing. In practical applications, the operation of the pressing mechanism is very convenient. Only by rotating the first buckle plate can the corresponding hollow tube be further tightened and released, and then the telescopic adjustment operation of the telescopic rod is convenient. At the same time, the pressing mechanism, the connecting mechanism and the adjustment clamping mechanism are all arranged in the installation groove arranged on the upper part of the hollow socket seat, thereby realizing the overall aesthetics of the hollow socket seat. When the aesthetics of the hollow socket seat is improved, the overall aesthetics of the entire telescopic rod is improved. In the pressing mechanism, the corresponding hollow tube is pressed and fixed by using the pressing plate. The pressing plate is in surface contact with the hollow tube, and the contact area is large, which can ensure the stability of the hollow tube. At the same time, the pressing plate and the first buckle plate are processed from wear-resistant materials, which can extend the service life of the clamping connector, and then improve the effective service life of the telescopic rod. Description of the Drawings

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some preferred embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0013] Figure 1 Schematic diagram of the overall structure of the clamping connection member in the present invention;

[0014] Figure 2 Schematic diagram of the structure of the hollow socket;

[0015] Figure 3 Side view of the structure of the hollow socket;

[0016] Figure 4 Schematic diagram of the relative distribution of the unlocking pressing plate, positioning pin and spring;

[0017] Figure 5 Schematic diagram of the structure of the first clamping plate;

[0018] Figure 6 Longitudinal sectional view at the connection of the hollow socket and two hollow tubes;

[0019] Figure 7 For Figure 6 Enlarged view of part A in

[0020] Figure 8 For Figure 6 Enlarged view of part B in

[0021] Figure 9 Schematic diagram of the structure of a specific embodiment of the telescopic rod;

[0022] In the figure: 1 hollow socket, 11 large-aperture section, 12 small-aperture section, 13 installation groove, 14 positioning step, 131 positioning hole, 132 guide tube, 133 through hole, 134 installation hole, 21 first clamping plate, 211 convex block, 22 top pressing plate, 23 second hinge shaft, 31 positioning pin, 311 first hinge shaft, 32 unlocking pressing plate, 33 spring, 34 third hinge shaft, 4 hollow tube, 41 threaded hole, 42 adjustment hole. Detailed implementation manners

[0023] The following will be combined with specific embodiments and the attached Figures 1-9, the technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only some preferred embodiments of the present utility model, rather than all embodiments. Those skilled in the art can make similar deformations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0024] The present utility model provides a clamping connection member for a telescopic rod (as Figure 1 shown), including a hollow socket 1. In practice, the hollow socket 1 is used to sleeved on the front end of a corresponding hollow tube 4. The hollow socket 1 includes a large-diameter section 11 and a small-diameter section 12. The hollow socket 1 can be an integrally injection-molded component. The hollow socket 1 uses the large-diameter section 11 to realize the sleeved and fixed connection with the front end of the corresponding hollow tube 4. To facilitate the positioning of the front end of the corresponding hollow tube 4 in the hollow socket 1, a positioning step 14 is provided between the large-diameter section 11 and the small-diameter section 12. The front end face of the corresponding hollow tube 4 abuts against the end face of the positioning step 14 to realize the relative positioning of the hollow tube 4 and the hollow socket 1. A pressing mechanism is provided on the upper part of the small-diameter section 12, which can realize the pressing and fixing of the hollow tube 4 sleeved in the small-diameter section 12. By using the pressing mechanism, the corresponding hollow tube 4 can be stably pressed in the small-diameter section 12. Since the hollow socket 1 is fixedly connected to the corresponding hollow tube 4, and at the same time, after the corresponding hollow tube 4 is fixedly pressed by using the pressing mechanism, the stable connection of the two hollow tubes 4 sleeved in the hollow socket 1 is realized. A connection mechanism and an adjustment clamping mechanism are provided on the upper part of the large-diameter section 11. The connection mechanism can realize the connection between the hollow tube 4 sleeved in the large-diameter section 11 and the hollow socket 1. The adjustment clamping mechanism includes a positioning pin 31, and the positioning pin 31 can be inserted into or disengaged from an adjustment hole 42 provided on the hollow tube 4 sleeved in the large-diameter section 11. In practical applications, when the positioning pin 31 disengages from the adjustment hole 42, the corresponding hollow tube 4 can be moved to adjust the position of the hollow tube 4. When the positioning pin 31 is inserted into the corresponding adjustment hole 42, the movement limit of the corresponding hollow tube 4 and the hollow socket 1 is realized. The pressing mechanism, the connection mechanism and the adjustment clamping mechanism are all provided on the upper part of the hollow socket 1, which is beneficial to realize the overall aesthetics of the hollow socket tube 1. If the hollow socket tube 1 is beautiful, it is beneficial to realize the overall aesthetics of the entire telescopic rod.

[0025] Based on the above embodiments, the specific implementation manner of the pressing mechanism is as follows: The pressing mechanism includes a first buckle plate 21 and a pressing plate 22. To facilitate the installation and positioning of the first buckle plate 21 and the pressing plate 22 on the small-diameter section 12, and at the same time, to improve the overall aesthetics of the upper part of the hollow socket 1, here, an installation groove 13 is provided on the upper part of the hollow socket 1. The installation groove 13 almost spans the entire length direction of the hollow socket 1. An installation hole 134 is provided on the upper part of the small-diameter section 12. The pressing plate 22 is movably sleeved in the installation hole 134. In actual application, the support of the hollow tube 4 sleeved in the small-diameter section 12 on the pressing plate 22 prevents the pressing plate 22 from falling off from the installation hole 134. One end of the first buckle plate 21 is hingedly arranged above the installation hole 134. Specifically, a second hinge shaft 23 is provided on the first buckle plate 21, and the second hinge shaft 23 is rotatably arranged on the two vertical side walls of the installation groove 13 to realize the rotational support of the first buckle plate 21 by using the second hinge shaft 23. To improve the aesthetics of the hollow socket 1, when the first buckle plate 21 is buckled above the installation groove 13, the first buckle plate 21 can cover the entire upper area of the installation groove 13, and the installation groove 13 is blocked by the first buckle plate 21, which can improve the aesthetics of the hollow socket 1. A convex block 211 is fixedly arranged on the lower part of the first buckle plate 21. When the first buckle plate 21 is in the buckled state, the convex block 211 can press the pressing plate 22 against the outer side wall of the hollow tube 4 sleeved in the small-diameter section 12. That is, when the first buckle plate 21 is rotated towards the installation groove 13, as the first buckle plate 21 rotates, the convex block 211 continuously approaches the upper part of the pressing plate 22. When the first buckle plate 21 rotates in place, the convex block 211 just realizes the pressing of the pressing plate 22. After the pressing plate 22 is pressed, it realizes the pressing of the hollow tube 4 located below it. When the first buckle plate 21 is rotated away from the installation groove 13, as the rotation progresses, the convex block 211 is separated from the pressing plate 22, and then the pressing of the hollow tube 4 is released; after the hollow tube 4 is pressed, its corresponding outer side wall is stably attached to the inner side wall of the small-diameter section 12, and then the stable positioning of the hollow tube 4 is realized. When the hollow socket 1 and the corresponding hollow tube 4 are stably fixedly connected, slight relative movement between the two corresponding hollow tubes 4 will not occur, thereby improving the connection stability of two adjacent hollow tubes 4 and enhancing the use comfort of the telescopic rod. Since the pressing plate 22 and the corresponding hollow tube 4 are in surface contact, it is beneficial to improve the pressing and fixing effect of the pressing plate 22 on the hollow tube 4; to improve the service life of the convex block 211 and the pressing plate 22, wear-resistant materials can be used to manufacture the first buckle plate 21 and the pressing plate 22. The first buckle plate 21 and the convex block 211 are integral and inseparable components.

[0026] Based on the above embodiments, the specific implementation of the adjustment and positioning mechanism is as follows: The adjustment and positioning mechanism further includes an unlocking pressing plate 32 and a spring 33. The middle part of the unlocking pressing plate 32 is hinged to the upper part of the large-diameter section 11. Specifically, a third hinge shaft 34 is provided on the lower side of the middle part of the unlocking pressing plate 32, and both ends of the third hinge shaft 34 are rotatably arranged on the two side walls of the installation groove 13. The unlocking pressing plate 32 is completely inside the installation groove 13. The positioning pin 31 is connected to the lower part of the front end of the unlocking pressing plate 32. The spring 33 is clamped between the lower part of the rear end of the unlocking pressing plate 32 and the upper side wall of the large-diameter section 11. By using the pushing effect of the spring 33 on the unlocking pressing plate 32, the positioning pin 31 can be inserted into the corresponding adjustment hole 42, so as to realize the locking of the corresponding hollow tube 4. When it is necessary to release the locking of the hollow tube 4 by the positioning pin 31, press the rear end of the unlocking pressing plate 32 to pull out the positioning pin 31 from the adjustment hole 42, and then the telescopic movement adjustment of the hollow tube 4 can be realized subsequently. To facilitate the accuracy of the up and down movement of the positioning pin 31, here, the upper part of the positioning pin 31 is hinged to the lower part of the front end of the unlocking pressing plate 32 by a first hinge shaft 311. Further, a guide tube 132 sleeved outside the positioning pin 31 is provided on the upper part of the large-diameter section 11, and the guide tube 132 communicates with a positioning hole 131 provided on the upper part of the large-diameter section 11. During the rotation of the unlocking pressing plate 32 around the third hinge shaft 34, the positioning pin 31 is always located inside the guide tube 132, thus realizing the accurate up and down movement of the positioning pin 31 and facilitating the positioning pin 31 to accurately insert into the corresponding adjustment hole 42.

[0027] Based on the above embodiments, the specific implementation of the connection mechanism is as follows: The connection mechanism includes a bolt. A through hole 133 matching the bolt is provided on the upper part of the large-diameter section 11. The connection and fixation of the hollow socket 1 and the corresponding hollow tube 4 are realized by pressing or inserting the corresponding hollow tube 4 with the bolt.

[0028] The present utility model also provides a telescopic rod, which includes a clamping and connecting member for the telescopic rod described above. The telescopic rod further includes a plurality of hollow tubes 4. In practical applications, the number of the hollow tubes 4 is determined according to the designed telescopic length of the telescopic rod and the length of a single hollow tube 4. Two adjacent hollow tubes 4 can be sleeved end to end. That is, by utilizing the sleeving ability of the adjacent hollow tubes 4, the contraction of the entire telescopic tube 4 can be realized, thus facilitating the storage and placement of the telescopic rod. A corresponding clamping and connecting member for the telescopic rod is provided at the front end of each corresponding hollow tube 4. Since the thicknesses of the hollow tubes 4 are different, the models of the clamping and connecting members for the telescopic rod of each model are also different. The inner cavity of the large-diameter section 11 of each clamping and connecting member for the telescopic rod should be adapted to the outer side of the front end of the hollow tube 4 fixedly connected thereto, and the inner cavity of the small-diameter section 12 of each clamping and connecting member for the telescopic rod should be adapted to the outer side of the hollow tube 4 sliding therein. A number of equally spaced adjustment holes 42 are provided on the corresponding hollow tubes 4. The positioning pin 31 can be inserted into the corresponding adjustment hole 42. By using the cooperation of the positioning pin 31 and the adjustment hole 42, the telescopic adjustment and fixation of the two mutually sleeved hollow tubes 4 are realized. A threaded hole 41 corresponding to the through hole 133 is provided on the hollow tube 4 fixedly sleeved in the large-diameter section 11. After the bolt passes through the through hole 133, it can be tightened in the threaded hole 41. When the bolt is tightened in the corresponding threaded hole 41, the fixed connection between the hollow socket 1 and the corresponding hollow tube 4 is realized. After the hollow socket 1 is fixedly connected to the hollow tube 4, it is convenient to use the positioning pin 31 to realize the telescopic adjustment and positioning of the two mutually sleeved hollow tubes 4. At the same time, it is also convenient for the first clamping plate 21 and the top pressing plate 22 to realize the stable connection between the hollow socket 1 and the corresponding hollow tube 4, thereby finally realizing the stable connection between the two mutually sleeved hollow tubes 4.

[0029] In the present utility model, "left" and "right" are relative positions used for conveniently describing the positional relationship, and thus cannot be understood as absolute positions to limit the protection scope.

[0030] Except for the technical features described in the specification, the rest are known technologies to those skilled in the art.

[0031] The preferred embodiments and examples of the present utility model have been described in detail above in conjunction with the drawings. However, the present utility model is not limited to the above embodiments and examples. For those of ordinary skill in the art in this technical field, without departing from the concept of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A clamping connection part for a telescopic rod, characterized in that It includes a hollow socket. The hollow socket includes a large-aperture section and a small-aperture section. At the upper part of the small-aperture section, a pressing mechanism is provided which can achieve the pressing and fixing of a hollow tube sleeved in the small-aperture section. At the upper part of the large-aperture section, a connecting mechanism and an adjusting clamping mechanism are provided. The connecting mechanism can achieve the connection between the hollow tube sleeved in the large-aperture section and the hollow socket. The adjusting clamping mechanism includes a positioning pin which can be inserted into or disengaged from an adjusting hole provided on the hollow tube sleeved in the large-aperture section.

2. The snap - on connecting piece for a telescopic rod according to claim 1, characterized in that, The pressing mechanism includes a first clamping plate and a pressing plate. An installation hole is provided at the upper part of the small-aperture section. The pressing plate is movably sleeved in the installation hole. One end of the first clamping plate is hinged above the installation hole. A convex block is fixedly provided at the lower part of the first clamping plate. When the first clamping plate is in the clamped state, the convex block can press the pressing plate against the outer side wall of the hollow tube sleeved in the small-aperture section.

3. The snap-connecting member for a telescopic rod according to claim 2, characterized in that, The adjusting clamping mechanism further includes an unlocking pressing plate and a spring. The middle part of the unlocking pressing plate is hingedly connected to the upper part of the large-aperture section. The positioning pin is connected to the lower part of the front end of the unlocking pressing plate. The spring is clamped between the lower part of the rear end of the unlocking pressing plate and the upper side wall of the large-aperture section.

4. The snap - on connecting piece for a telescopic rod according to claim 3, characterized in that, The upper part of the positioning pin is hingedly connected to the lower part of the front end of the unlocking pressing plate by a first hinge shaft.

5. The snap-connecting member for a telescopic rod according to claim 4, characterized in that, in A guiding tube sleeved outside the positioning pin is provided at the upper part of the large-aperture section. The guiding tube is in communication with a positioning hole provided at the upper part of the large-aperture section.

6. The snap-connecting component for the telescopic rod according to claim 2 or 3, characterized in that, The connecting mechanism includes a bolt. A through hole matched with the bolt is provided at the upper part of the large-aperture section.

7. A telescopic rod, characterized in that, It includes several clamping connectors for telescopic rods according to claim 6. The telescopic rod further includes several hollow tubes. Two adjacent hollow tubes can be sleeved end to end. A corresponding clamping connector for the telescopic rod is provided at the front end of each corresponding hollow tube. Several adjusting holes are equidistantly distributed on the corresponding hollow tubes. The positioning pin can be inserted into the corresponding adjusting holes. A threaded hole corresponding to the through hole is provided on the hollow tube fixedly sleeved in the large-aperture section. After the bolt passes through the through hole, it can be tightened in the threaded hole.

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