Elastic locking telescopic rod

Abstract

The utility model discloses an elastic locking telescopic rod which comprises an outer pipe and an inner pipe, the rear end of the inner pipe is inserted into the outer pipe and can move back and forth along the outer pipe, the elastic locking telescopic rod further comprises a clamping spring and a plurality of anti-slip pieces, and the anti-slip pieces are arranged at the rear end of the inner pipe and are sequentially arranged in the circumferential direction of the inner pipe to form an assembly cavity for containing the clamping spring. The clamping spring is provided with two end parts which are arranged in the circumferential direction of the pipe fitting at intervals, the clamping spring extends from one end part to the other end part along the cavity wall of the assembly cavity, and the plurality of anti-slip parts are driven by the clamping spring to move outwards to lock the inner pipe on the outer pipe. According to the utility model, the rear end of the inner tube is provided with the plurality of non-slip pieces which are distributed in the circumferential direction of the inner tube to form the assembly cavity, and the assembly cavity is internally provided with the clamp spring which drives the plurality of non-slip pieces to move outwards to enable the non-slip piece parts to abut against the outer tube to abut against the inner tube, so that the inner tube can be locked in the moving direction, the stretching length can be randomly adjusted, and the use is convenient; and the snap spring has a good locking effect.

Description

Technical Field

[0001] This utility model relates to the field of photographic equipment technology, and in particular to an elastic locking telescopic rod. Background Technology

[0002] A telescopic pole is an adjustable support rod widely used in photography equipment, such as selfie sticks and tripods. Existing telescopic poles consist of several sequentially nested tubular components. In a pair of adjacent components, one component has a insertion hole, and the other has a locking block that can move radially relative to it. In the retracted state, the locking block retracts into the component and is axially offset from the insertion hole. In the extended state, the locking block protrudes from the component and engages with the insertion hole, locking the two components in the extended state. However, because each locking block is paired with only one insertion hole, the extended length of the telescopic pole is unique, making it inconvenient to use. Utility Model Content

[0003] The purpose of this utility model is to provide an elastic locking telescopic rod to solve the problem that existing telescopic rods achieve locking in the telescopic state through a locking block and a socket, with a single extension length, which is inconvenient to use.

[0004] This utility model is achieved through the following technical solution:

[0005] An elastic locking telescopic rod includes several tubular components that are sequentially sleeved together. In two adjacent tubular components, one is defined as an outer tube and the other as an inner tube. The rear end of the inner tube is inserted into the outer tube and can move back and forth along the outer tube. The rod also includes a retaining spring and several anti-slip members. The anti-slip members are disposed at the rear end of the inner tube and are sequentially arranged in the circumferential direction of the inner tube to form an assembly cavity for accommodating the retaining spring. The retaining spring has two ends spaced apart in the circumferential direction of the tubular component. The retaining spring extends along the cavity wall from one end to the other end. The anti-slip members are driven by the retaining spring to move outward and lock the inner tube onto the outer tube.

[0006] Furthermore, the included angle β formed by the lines connecting the two ends to the center of the retaining ring ranges from 75° to 85°.

[0007] Furthermore, there are two anti-slip components, and the two anti-slip components are spaced apart to form a gap when the snap ring locks the outer tube onto the inner tube, and the two end portions are located on opposite sides of the gap.

[0008] Furthermore, the retaining ring is made of metal or plastic.

[0009] Furthermore, one end of the inner tube extending into the outer tube is spaced apart from the inner wall of the outer tube to form an anti-slip space. The anti-slip member has a shaft extension portion, which is accommodated in the anti-slip space and partially extends out of the rear end of the inner tube to form the assembly cavity.

[0010] Furthermore, the anti-slip component also has a radial extension portion, which extends from the shaft extension portion toward the assembly cavity. There are two radial extension portions, and the two radial extension portions are spaced apart in the axial direction of the tube to form positioning holes for the insertion of the retaining ring.

[0011] Furthermore, the outer side of the shaft extension is provided with a guide groove that slides with the outer tube, and the inner side of the shaft extension is provided with a plug-in part that plugs into the inner tube. The side of the plug-in part facing away from the guide groove is provided with a reinforcing rib.

[0012] Furthermore, the insertion portion is symmetrically arranged with respect to the guide groove, and / or the reinforcing rib is directly opposite the guide groove.

[0013] Furthermore, the portion of the shaft extension that extends out of the anti-slip space occupies 1 / 4 to 1 / 3 of the shaft extension.

[0014] Furthermore, the outer side of the shaft extension is provided with several anti-slip protrusions.

[0015] The advantage of this technical solution is that by configuring several anti-slip components that form assembly cavities in the circumference of the inner tube at the rear end of the inner tube, and configuring a retaining spring in the assembly cavity to drive several anti-slip components to move outward so that part of the anti-slip component abuts against the outer tube and part of the anti-slip component abuts against the inner tube, the inner tube can be locked in its moving direction. The extension length can be adjusted at will, it is convenient to use, and the retaining spring has a good locking effect. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a perspective view (in the stretched state) of the elastic locking telescopic rod disclosed in the embodiment;

[0019] Figure 2 This is a perspective view (in its stowed state) of the elastic locking telescopic rod disclosed in the embodiment;

[0020] Figure 3 This is a partial front view of the elastic locking telescopic rod disclosed in the embodiment (two retracted tubes);

[0021] Figure 4 yes Figure 3 Sectional view at point AA;

[0022] Figure 5 yes Figure 4 A magnified view of a section at point C;

[0023] Figure 6 yes Figure 3 Sectional view at point BB;

[0024] Figure 7 This is a partial exploded view of the elastic locking telescopic rod disclosed in the embodiment;

[0025] Figure 8 yes Figure 7 A magnified view of a section at point D;

[0026] Figure 9 This is a perspective view of the anti-slip component in the embodiment;

[0027] Figure 10 This is a top view of the retaining ring in the embodiment. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example: Figure 1-10As shown, the elastic locking telescopic rod includes several tubes 1 that are sequentially sleeved together. In two adjacent tubes 1, one tube 1 is defined as the outer tube 101 and the other tube 1 is defined as the inner tube 102. The rear end of the inner tube 102 is inserted into the outer tube 101 and can move back and forth along the outer tube 101. It also includes a retaining spring 2 and several anti-slip members 3. Several anti-slip members 3 are provided at the rear end of the inner tube 102 and are sequentially arranged in the circumferential direction of the inner tube 102 to form an assembly cavity 301 for accommodating the retaining spring 2. The retaining spring 2 has two ends 201 that are spaced apart in the circumferential direction of the tube 1. The retaining spring 2 extends from one end 201 to the other end 201 along the cavity wall of the assembly cavity 301. The retaining spring 2 is used to move several anti-slip members 3 outward, so that the anti-slip members 3 part abuts against the outer tube 101 and the part abuts against the inner tube 102, thereby locking the inner tube 102 onto the outer tube 101. When the inner tube 102 is stationary relative to the outer tube 101, the retaining spring 2 expands outward, causing several anti-slip parts 3 to move outward, so that part of the anti-slip part 3 abuts against the outer tube 101 and part of it abuts against the inner tube 102, thereby locking the inner tube 102 onto the outer tube 101; when the inner tube 102 moves relative to the outer tube 101 under the drive of an external force, the retaining spring 2 retracts inward to release the inner tube 102. In summary, this embodiment provides an elastic locking telescopic rod to solve the problems of existing telescopic rods that achieve locking in the telescopic state through a single locking block and a single insertion hole, resulting in a single extension length and inconvenience in use. The solution mainly involves configuring several anti-slip components 3 arranged circumferentially around the rear end of the inner tube 102 to form an assembly cavity 301. Within the assembly cavity 301, a retaining spring 2 is configured to drive the anti-slip components 3 outwards, causing part of the anti-slip component 3 to abut against the outer tube 101 and part against the inner tube 102. This allows the inner tube 102 to be locked in its direction of movement, with the extension length adjustable arbitrarily, making it convenient to use. Furthermore, the retaining spring 2 provides a good locking effect.

[0030] In this embodiment of the invention, the included angle β formed by the lines connecting the two ends 201 and the center of the retaining ring 2 ranges from 75° to 85°. This setting, by configuring the included angle β formed by the lines connecting the two ends 201 and the center of the retaining ring 2 to a range of 75° to 85°, ensures that the retaining ring 2 has a good locking effect.

[0031] In this embodiment of the invention, there are two anti-slip components 3. The two anti-slip components 3 are spaced apart to form a gap 100 when the retaining spring 2 locks the outer tube 101 onto the inner tube 102. The two ends 201 are respectively positioned on opposite sides of the gap 100. This arrangement, by placing the two ends 201 on opposite sides of the gap 100, ensures that the outward expansion direction of the retaining spring 2 is consistent with the moving direction of the anti-slip component 3, resulting in excellent driving and locking effects.

[0032] In this embodiment of the invention, the retaining ring 2 is made of metal or plastic. Because the retaining ring 2 is made of metal or plastic, it has a good locking effect, is not easy to break, and has a long service life.

[0033] In this embodiment of the invention, one end of the inner tube 102 extending into the outer tube 101 is spaced apart from the inner wall of the outer tube 101 to form an anti-slip space (not shown in the figure). The anti-slip member 3 has a shaft extension portion 302, which is accommodated in the anti-slip space and partially extends out of the rear end of the inner tube 102 to form an assembly cavity 301. By configuring the shaft extension portion 302 to be accommodated in the anti-slip space and partially extending out of the rear end of the inner tube 102 to form an assembly cavity 301, when the retaining spring 2 drives the anti-slip member 3 to move outward, part of the anti-slip member 3 abuts against the outer tube 101 and part of it abuts against the inner tube 102.

[0034] In this embodiment of the invention, the portion of the shaft extension 302 extending out of the anti-slip space occupies 1 / 4 to 1 / 3 of the shaft extension 302. This arrangement, by configuring the portion of the shaft extension 302 extending out of the anti-slip space to occupy 1 / 4 to 1 / 3 of the shaft extension 302, provides good locking capability when the anti-slip member 3 moves outward.

[0035] In this embodiment of the invention, a plurality of anti-slip protrusions 303 are provided on the outer side of the shaft extension 302. By arranging a plurality of anti-slip protrusions 303 on the outer side of the shaft extension 302, the anti-slip member 3 has good locking ability when moving outward.

[0036] In this embodiment of the invention, the anti-slip member 3 further includes a radial extension portion 304, which extends from the shaft extension portion 302 into the assembly cavity 301. There are two radial extension portions 304, and the two radial extension portions 304 are spaced apart in the axial direction of the tube 1 to form positioning holes 305 for inserting the retaining ring 2. This arrangement, by configuring two radial extension portions 304 and spaced apart to form positioning holes 305 for inserting the retaining ring 2, ensures stable assembly of the retaining ring 2.

[0037] In this embodiment of the invention, the outer side of the shaft extension 302 is provided with a guide groove 306 that slides with the outer tube 101, and the inner side of the shaft extension 302 is provided with a plug-in portion 307 that plugs into the inner tube 102. A reinforcing rib 308 is provided on the side of the plug-in portion 307 facing away from the guide groove 306. This arrangement, by configuring the guide groove 306 and the plug-in portion 307 on the shaft extension 302, ensures stable assembly of the anti-slip member 3 with the outer tube 101 / inner tube 102. Furthermore, by configuring the reinforcing rib 308 on the plug-in portion 307, the shaft extension 302 possesses good structural strength, is not easily broken, and has a long service life.

[0038] In this embodiment of the invention, the insertion portion 307 is symmetrically arranged about the guide groove 306, and the reinforcing rib 308 is directly opposite the guide groove 306. This arrangement, by configuring the insertion portion 307 symmetrically about the guide groove 306 and configuring the reinforcing rib 308 directly opposite the guide groove 306, gives the shaft extension portion 302 good structural strength, making it less prone to breakage and extending its service life.

[0039] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] The above description provides one or more embodiments in conjunction with specific content, and does not imply that the specific implementation of this utility model is limited to these descriptions. Any methods or structures that are similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered as protected by this utility model.

Claims

1. An elastic locking telescopic rod, comprising a plurality of tubular components sequentially sleeved together, wherein in two adjacent tubular components, one is defined as an outer tube and the other as an inner tube, the rear end of the inner tube is inserted into the outer tube and is movable back and forth along the outer tube, characterized in that, It also includes a retaining spring and several anti-slip components. The several anti-slip components are disposed at the rear end of the inner tube and are arranged sequentially in the circumferential direction of the inner tube to form an assembly cavity for accommodating the retaining spring. The retaining spring has two ends spaced apart in the circumferential direction of the tube. The retaining spring extends from one end to the other end along the cavity wall of the assembly cavity. The several anti-slip components are driven by the retaining spring to move outward and lock the inner tube onto the outer tube.

2. The elastic locking telescopic rod according to claim 1, characterized in that, The included angle β formed by the lines connecting the two ends to the center of the retaining ring ranges from 75° to 85°.

3. The elastic locking telescopic rod according to claim 1, characterized in that, There are two anti-slip components. When the retaining spring locks the outer tube onto the inner tube, the two anti-slip components are spaced apart to form a gap. The two end portions are located on opposite sides of the gap.

4. The elastic locking telescopic rod according to claim 1, characterized in that, The retaining ring is made of metal or plastic.

5. The elastic locking telescopic rod according to claim 1, characterized in that, One end of the inner tube extends into the outer tube and is spaced apart from the inner wall of the outer tube to form an anti-slip space. The anti-slip component has a shaft extension portion, which is accommodated in the anti-slip space and partially extends out of the rear end of the inner tube to form the assembly cavity.

6. The elastic locking telescopic rod according to claim 5, characterized in that, The anti-slip component also has a radial extension portion, which extends from the shaft extension portion toward the assembly cavity. There are two radial extension portions, and the two radial extension portions are spaced apart in the axial direction of the tube to form positioning holes for the insertion of the retaining ring.

7. The elastic locking telescopic rod according to claim 5, characterized in that, The outer side of the shaft extension is provided with a guide groove that slides with the outer tube, and the inner side of the shaft extension is provided with a plug-in part that plugs into the inner tube. The side of the plug-in part facing away from the guide groove is provided with a reinforcing rib.

8. The elastic locking telescopic rod according to claim 7, characterized in that, The insertion portion is symmetrically arranged about the guide groove, and / or the reinforcing rib is directly opposite the guide groove.

9. The elastic locking telescopic rod according to claim 5, characterized in that, The portion of the shaft extension that extends beyond the anti-slip space accounts for 1 / 4 to 1 / 3 of the shaft extension.

10. The elastic locking telescopic rod according to claim 5, characterized in that, The outer side of the shaft extension is provided with several anti-slip protrusions.

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