A telescopic rod convenient for tightening and positioning

Abstract

The utility model relates to the technical field of telescopic rods, and discloses a telescopic rod that is easy to tighten and position, including an outer tube and an inner tube, the inner tube is slidably connected to the inner tube inside the outer tube, a threaded rod is installed inside the outer tube, a tightening assembly is slidably connected to the outer surface of the threaded rod, a connecting block is provided at one end of the inner tube, the tightening assembly includes a locking arc piece, a clamping block, an abutting block, a connecting column and a stopper, the outer surface of the locking arc piece is provided with a plurality of abutting blocks, the inner surface of the locking arc piece is provided with a clamping block, the outer surface of the connecting column is provided with a through opening, the inner surface of the through opening is slidably connected with a clamping block, the outer surface of the connecting column is provided with a stopper, the outer surface of the stopper abuts against the outer surface of the locking arc piece, and the connecting column is slidably connected to the outer surface of the threaded rod. The utility model can make the outer tube and the inner tube stretch smoothly and have a good positioning effect at the same time through the coordinated use of the tightening assembly, the threaded rod and the connecting block.

Description

Technical Field

[0001] The utility model relates to the technical field of telescopic rods, in particular to a telescopic rod which is convenient for tightening and positioning. Background Art

[0002] Telescopic rods are widely used in situations where length adjustment is required. Currently, the most common telescopic rods are telescopic rods that use a large rod to cover a small rod to telescope the rods. The implementation methods include spiral telescopic, sliding telescopic, folding telescopic, etc. Among them, the more common one is sliding telescopic, which inserts the secondary rod as the small rod into the main rod as the large rod to slide and telescope, so as to achieve the extension or shortening of the rod as a whole, and flexibly adapt to the length requirements.

[0003] The utility model patent application document with publication number "CN213628339U" discloses a telescopic rod, which is mainly composed of a first telescopic section, a second telescopic section and a limiting device. This technical solution has a good telescopic effect and prevents the telescopic section from falling out.

[0004] The telescopic rod disclosed in the above document has the following defects: during use, the length of the telescopic rod is adjusted by the cooperation between the positioning holes and the positioning posts. Since there is a certain distance between the positioning holes, the length of the telescopic rod can only be roughly adjusted.

[0005] It can be seen from this that the existing telescopic rod does not have a good structure for adjusting the length, and it is necessary to improve the existing shortcomings and provide a telescopic rod that is easy to tighten and position. Utility Model Content

[0006] The purpose of the utility model is to provide a telescopic rod which is convenient for tightening and positioning, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses a telescopic rod which is convenient for tightening and positioning, comprising an outer tube and an inner tube, the inner tube being slidably connected to the inner tube inside the outer tube, a threaded rod being installed inside the outer tube, a tightening assembly being slidably connected to the outer surface of the threaded rod, a connecting block being provided at one end of the inner tube, the tightening assembly comprising a locking arc piece, a clamping block, an abutting block, a connecting column and a stopper, a plurality of abutting blocks being provided on the outer surface of the locking arc piece, a clamping block being provided on the inner surface of the locking arc piece, a through opening being opened on the outer surface of the through opening, a clamping block being slidably connected to the inner surface of the through opening, a stopper being provided on the outer surface of the connecting column, the outer surface of the stopper being abutted against the outer surface of the locking arc piece, and the connecting column being slidably connected to the outer surface of the threaded rod.

[0009] Furthermore, one end of the connecting block is mounted with a threaded rod and an inner tube via a locking bolt.

[0010] Furthermore, a blocking piece is installed at one end of the threaded rod away from the connecting block.

[0011] Furthermore, a groove is formed on the outer surface of the threaded rod, and a clamping block is disposed inside the groove.

[0012] Furthermore, the outer surface of the abutment block is coated with a wear-resistant coating. The wear-resistant coating provided on the outer surface of the abutment block can provide the abutment block with better wear resistance and extend the service life of the abutment block.

[0013] Furthermore, the inner surface of the outer tube is provided with anti-skid stripes, and the anti-skid stripes can increase the friction between the outer tube and the abutment block, thereby preventing the abutment block from moving.

[0014] The utility model has the following beneficial effects:

[0015] (1) The utility model can achieve smooth stretching of the outer tube and the inner tube and good positioning effect by using the tightening assembly, the threaded rod and the connecting block in coordination.

[0016] (2) The utility model provides a wear-resistant coating on the outer surface of the abutment block, so that the abutment block has a better wear-resistant effect and prolongs the service life of the abutment block.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are 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 creative work.

[0019] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the outer tube of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the tightening assembly of the utility model when tightened;

[0022] Figure 4 This is a cross-sectional view of the threaded rod and locking arc piece structure of the utility model;

[0023] Figure 5 This is an exploded view of the tightening assembly, connecting block and locking bolt structure of the utility model;

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] In the figure: 1, outer tube; 2, inner tube; 3, threaded rod; 301, groove; 4, tightening assembly; 401, locking arc piece; 402, clamping block; 403, abutment block; 404, connecting column; 405, stopper; 5, connecting block; 6, locking bolt; 7, stopper. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 - Figure 5 As shown, the utility model is a telescopic rod that is easy to tighten and position, including an outer tube 1 and an inner tube 2, the inner tube 2 is slidably connected to the inner tube 2 inside the outer tube 1, a threaded rod 3 is installed inside the outer tube 1, and a tightening component 4 is slidably connected to the outer surface of the threaded rod 3, and a connecting block 5 is provided at one end of the inner tube 2. The tightening component 4 includes a locking arc piece 401, a clamping block 402, an abutting block 403, a connecting column 404 and a stopper 405. The outer surface of the locking arc piece 401 is provided with a plurality of abutting blocks 403, the inner surface of the locking arc piece 401 is provided with a clamping block 402, the outer surface of the connecting column 404 is provided with a through opening, the inner surface of the through opening is slidably connected with the clamping block 402, the outer surface of the connecting column 404 is provided with a stopper 405, the outer surface of the stopper 405 abuts against the outer surface of the locking arc piece 401, and the connecting column 404 is slidably connected to the outer surface of the threaded rod 3.

[0028] One end of the connecting block 5 is mounted with the threaded rod 3 and the inner tube 2 via a locking bolt 6 .

[0029] A blocking piece 7 is installed at one end of the threaded rod 3 away from the connecting block 5 .

[0030] A groove 301 is formed on the outer surface of the threaded rod 3 , and a clamping block 402 is disposed inside the groove 301 .

[0031] The outer surface of the abutment block 403 is coated with a wear-resistant coating. The wear-resistant coating provided on the outer surface of the abutment block 403 can make the abutment block 403 have a better wear-resistant effect and extend the service life of the abutment block 403.

[0032] The inner surface of the outer tube 1 is provided with anti-skid stripes, and the anti-skid stripes can increase the friction between the outer tube 1 and the abutment block 403 to prevent the abutment block 403 from moving.

[0033] When in use, first stretch the inner tube 2 outward, then after the inner tube 2 reaches the specified position, rotate the inner tube 2 clockwise. While the inner tube 2 rotates, it will drive the connecting column 404 to rotate, and at the same time lift the locking arc piece 401, so that the block 402 is disengaged from the groove 301. At this time, the inner tube 2, the connecting block 5 and the threaded rod 3 are integrated, and the inner tube 2 can be further rotated to make the outer surface of the abutment block 403 abut and fix with the inner surface of the outer tube 1, so as to achieve the purpose of tightening the entire telescopic rod. When the inner tube 2 needs to be retracted, rotate the inner tube 2 counterclockwise. , so that the inner tube 2 drives the threaded rod 3 to rotate, so that the connecting block position 5 moves. When the connecting block 5 abuts against the connecting column 404, the groove 301 opened by the threaded rod 3 is reset and aligned with the through opening opened by the connecting column 404, so that the clamping block 402 returns to the inside of the groove 301, and then the inner tube 2 continues to rotate, driving the connecting column 404 to rotate, so that the abutment block 403 and the outer tube 1 are no longer abutted, and the locking arc piece 401 returns to the free state from the clamping state. At this time, the inner tube 2 can be retracted into the inside of the outer tube 1 to complete the retraction purpose.

[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A telescopic rod that is easy to tighten and position, comprising an outer tube (1) and an inner tube (2), characterized in that: The inner tube (2) is slidably connected to the inner part of the outer tube (1), a threaded rod (3) is installed inside the outer tube (1), a tightening assembly (4) is slidably connected to the outer surface of the threaded rod (3), and a connecting block (5) is provided at one end of the inner tube (2); The tightening assembly (4) comprises a locking arc piece (401), a clamping block (402), an abutting block (403), a connecting column (404) and a stopper (405); the outer surface of the locking arc piece (401) is provided with a plurality of abutting blocks (403); the inner surface of the locking arc piece (401) is provided with a clamping block (402); the outer surface of the connecting column (404) is provided with a through opening, the interior of the through opening is slidably connected with the clamping block (402); the outer surface of the connecting column (404) is provided with a stopper (405); the outer surface of the stopper (405) abuts against the outer surface of the locking arc piece (401); and the connecting column (404) is slidably connected to the outer surface of the threaded rod (3).

2. A telescopic rod that is easy to tighten and position according to claim 1, characterized in that: One end of the connection block (5) is mounted with a threaded rod (3) and an inner tube (2) via a locking bolt (6).

3. A telescopic rod that is easy to tighten and position according to claim 2, characterized in that: A blocking piece (7) is installed at one end of the threaded rod (3) away from the connecting block (5).

4. The telescopic rod for facilitating tightening and positioning according to claim 1, characterized in that: The outer surface of the threaded rod (3) is provided with a groove (301), and a clamping block (402) is arranged inside the groove (301).

5. The telescopic rod that is easy to tighten and position according to claim 1, characterized in that: The outer surface of the abutment block (403) is coated with a wear-resistant coating.

6. The telescopic rod that is easy to tighten and position according to claim 1, characterized in that: The inner surface of the outer tube (1) is provided with anti-slip stripes.

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