Telescopic pipe fitting with improved damping structure

Abstract

The telescopic pipe fitting with the improved damping structure comprises a telescopic inner pipe and a telescopic outer pipe which are assembled together, the damping structure is arranged at the end of the inner pipe, the damping structure comprises two arc-shaped pressing plates which are symmetrically arranged, a gap is formed between the two arc-shaped pressing plates, assembling cavities are formed in the lower portions of the arc-shaped pressing plates, the two assembling cavities are symmetrically arranged, and the damping structure is arranged between the two assembling cavities. A clamping spring is arranged between the two assembling cavities, and part of the structure of the clamping spring is arranged in the assembling cavities. According to the invention, the snap spring is adopted to replace a spring structure used in the current mainstream, the structure is simple, the snap spring can also provide good elastic supporting force, the assembly is more convenient, the cost is low, and the stability is better. Specifically, in the use process, the two arc-shaped pressing plates generate outward elastic force through the elastic force of the clamping spring, the outer walls of the two arc-shaped pressing plates abut against the inner wall of the outer pipe, and the damping effect is achieved during stretching and retracting.

Description

Technical Field

[0001] The utility model belongs to the technical field of telescopic tube structures, and particularly relates to a telescopic pipe fitting with an improved damping structure. Background Art

[0002] Photography and videography auxiliary devices are commonly used equipment, such as tripods, selfie sticks, support rods and other devices. In such devices, telescopic support rods, extension rods and other pipe fitting structures are generally used, and basically adopt a multi-section sleeve type structure, that is, a telescopic tube.

[0003] A telescopic tube generally includes at least two linear pipe fittings, which are concentrically sleeved and can realize a combined body with relative axial displacement to change the overall length. In the prior art, in order to provide a uniform and smooth feel during telescopic operation, a damping structure is usually arranged between the inner and outer pipe fittings, which can provide a damping force during telescoping to ensure a smooth feel.

[0004] At present, the damping structures in such telescopic pipe fittings are diverse, some are simple and some are complex. The damping mechanisms are all composed of a single spring, which is prone to the problem of uneven release of the rebound force, resulting in the inner and outer pipes being fast and slow, tight and loose during the telescopic process, and the use effect and feel are both poor; moreover, the cost of the spring is high, the loss is large, and the assembly is troublesome.

[0005] Based on some problems in the above prior art, the present application further designs and improves the damping structure in the telescopic tube. Summary of the Utility Model

[0006] In view of the above deficiencies in the prior art, the utility model provides a telescopic pipe fitting with an improved damping structure, which uses an elastic circlip to replace the current spring structure. It has a simple structure, is convenient to assemble, has a low cost, can ensure that the elastic force is applied evenly, has high stability during use, is not prone to displacement, skew, and falling off, and greatly improves the service life of the damping structure.

[0007] The utility model is solved by the following technical solutions.

[0008] A telescopic pipe fitting with an improved damping structure includes a telescopic inner tube and an outer tube assembled together. A damping structure is provided at the end of the inner tube. The damping structure includes two symmetrically arranged arc-shaped pressing plates with a gap between them. An assembly cavity is provided at the lower part of the arc-shaped pressing plate. The two assembly cavities are symmetrically arranged, and a circlip is provided between the two assembly cavities, and part of the structure of the circlip is placed in the assembly cavity.

[0009] In this application, a circlip is used to replace the currently mainstream spring structure. The structure is simple. The circlip can also provide good elastic support force, and the assembly is more convenient, with low cost and better stability. Specifically, when in use, the elastic force of the circlip causes the two arc-shaped pressing plates to generate an outward elastic force, so that the outer walls of the two arc-shaped pressing plates abut against the inner wall of the outer tube, playing a damping effect during telescoping.

[0010] In a preferred embodiment, a positioning protrusion is provided on the inner wall of the arc-shaped pressing plate, and the positioning protrusion can be assembled in the positioning hole on the inner tube, which is convenient for assembly. A protruding damping contact strip is provided on the outer wall of the arc-shaped pressing plate, which contacts and rubs against the inner wall of the outer tube to provide a damping force.

[0011] In a preferred embodiment, a first partition and a second partition are provided at the lower part of the arc-shaped pressing plate. The assembly cavity is arranged between the first partition and the second partition, and a reinforcing rib for supporting and strengthening functions is also provided between the first partition and the second partition. The assembly structure is simple, and the structural strength is high, with a long service life.

[0012] In a preferred embodiment, the damping structure further includes a sleeve body. The sleeve body is arranged inside the outer tube. When the inner tube and the outer tube are stretched to the longest, the sleeve body abuts against the arc-shaped pressing plate to achieve limit and prevent pulling out.

[0013] In a preferred embodiment, a second positioning protrusion is provided on the outer wall of the sleeve body. The second positioning protrusion can be assembled in the positioning hole on the outer tube, which is convenient for assembly. A convex edge is further provided on the outer edge of the sleeve body, which can abut against the end face of the outer tube.

[0014] In a preferred embodiment, a guiding slope is provided on one side of the second positioning protrusion to facilitate the assembly of the sleeve body and the outer tube.

[0015] In a preferred embodiment, guiding grooves are provided on the sides of the inner tube and the outer tube, and corresponding guiding grooves are provided on the side of the sleeve body, which has good guiding performance during telescoping.

[0016] In a preferred embodiment, the circlip is a C-shaped circlip, which has low cost, high structural strength and a long service life.

[0017] Compared with the prior art, the present utility model has the following beneficial effects: It provides a telescopic pipe fitting with an improved damping structure. A resilient circlip is used to replace the current spring structure. The structure is simple, the assembly is convenient, the cost is low, it can ensure that the elastic force is applied evenly, and the stability is high during use, and it is not easy to have phenomena such as displacement, skew, and detachment, greatly improving the service life of the damping structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a perspective view of the telescopic pipe fitting in the present utility model.

[0019] Figure 2 This is a perspective view of the inner tube and the damping structure thereon in the present utility model.

[0020] Figure 3 This is a side view of the damping structure in the present utility model.

[0021] Figure 4 This is a perspective view of the damping structure in the present utility model.

[0022] Figure 5 This is a perspective view of the sleeve body in the damping structure of the present utility model.

[0023] Figure 6 This is a perspective view of the two arc-shaped pressing plates and the snap ring in the damping structure of the present utility model.

[0024] Figure 7 This is a perspective view of the arc-shaped pressing plate in the damping structure of the present utility model.

[0025] Figure 8 This is a perspective view of the snap ring in the damping structure of the present utility model. Detailed implementation manners

[0026] The following further describes the present utility model in detail in conjunction with the drawings and the specific implementation manners.

[0027] In the following implementation manners, the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The implementation manners described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0028] In the description of the present utility model, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise, etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, and therefore should not be construed as a limitation of the present utility model. In addition, the terms: first, second, etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. In the description of the present utility model, unless otherwise clearly specified and limited, the terms: installation, connection, connection, etc. should be understood in a broad sense, and those of ordinary skill in the art can understand the specific meanings of the above terms in the present application according to specific circumstances.

[0029] See Figures 1 to 8, A telescopic pipe fitting with an improved damping structure involved in the present application includes a telescopic inner pipe 1 and an outer pipe 2 assembled together. A damping structure is provided at the end of the inner pipe 1. The damping structure includes two symmetrically arranged arc-shaped pressing plates 5 with a gap between them. An assembly cavity 56 is provided at the lower part of the arc-shaped pressing plate 5. The two assembly cavities 56 are symmetrically arranged, and a snap ring 6 is provided between the two assembly cavities 56, and part of the structure of the snap ring 6 is placed in the assembly cavity 56. Preferably, the snap ring 6 is a C-shaped snap ring, which has low cost, high structural strength and long service life.

[0030] Specifically, as can be seen from Figure 7 In the present application, positioning protrusions 55 are provided on the inner wall of the arc-shaped pressing plate 5, and the positioning protrusions 55 can be assembled in the positioning holes 3 on the inner pipe 1, which is convenient for assembly. A protruding damping contact band 51 is provided on the outer wall of the arc-shaped pressing plate 5, which contacts and rubs against the inner wall of the outer pipe 2 to provide damping force.

[0031] Furthermore, a first partition 561 and a second partition 562 are provided at the lower part of the arc-shaped pressing plate 5. The assembly cavity 56 is provided between the first partition 561 and the second partition 562, and a reinforcing rib 563 for supporting and strengthening functions is also provided between the first partition 561 and the second partition 562. The assembly structure is simple, and it has high structural strength and long service life.

[0032] As can be seen from the drawings, in the present application, the damping structure further includes a sleeve 4. The sleeve 4 is provided inside the outer pipe 2. When the inner pipe 1 and the outer pipe 2 are stretched to the longest, the sleeve 4 abuts against the arc-shaped pressing plate 5 to achieve limit and prevent pulling out. Second positioning protrusions 42 are provided on the outer wall of the sleeve 4, and the second positioning protrusions 42 can be assembled in the positioning holes on the outer pipe 2, which is convenient for assembly. A convex edge 41 is also provided on the outer edge of the sleeve 4, which can abut against the end face of the outer pipe 2. More specifically, a guiding slope 421 is provided on one side of the second positioning protrusion 42 to facilitate the assembly of the sleeve 4 and the outer pipe 2.

[0033] In addition, in the present application, guiding grooves are provided on the sides of the inner pipe 1 and the outer pipe 2, and corresponding guiding grooves 48 are provided on the side of the sleeve 4, which has good guiding performance during telescoping.

[0034] As can be seen from the above description, in the present application, a snap ring 6 is used to replace the currently mainstream spring structure. The structure is simple, the snap ring 6 can also provide good elastic support force, and the assembly is more convenient, with low cost and better stability. Specifically, during use, the elastic force of the snap ring 6 causes the two arc-shaped pressing plates 5 to generate an outward elastic force, so that the outer walls of the two arc-shaped pressing plates 5 abut against the inner wall of the outer pipe 2, playing a damping effect during telescoping.

[0035] As described above, the present utility model provides a telescopic pipe fitting with an improved damping structure, which uses an elastic circlip to replace the current spring structure. It has a simple structure, is convenient for assembly, has a low cost, can ensure that the elastic force is applied evenly, has high stability during use, and is not prone to displacement, skew, or detachment, greatly improving the service life of the damping structure.

[0036] The protection scope of the present utility model includes but is not limited to the above embodiments. The protection scope of the present utility model shall be subject to the claims, and any substitutions, deformations, and improvements that are easily conceivable by those skilled in the art for this technology shall fall within the protection scope of the present utility model.

Claims

1. A telescopic pipe fitting with an improved damping structure, comprising a telescopic inner pipe (1) and an outer pipe (2) assembled together, wherein a damping structure is provided at the end of the inner pipe (1), characterized in that, The damping structure includes two symmetrically arranged arc-shaped pressing plates (5). There is a gap between the two arc-shaped pressing plates (5). The lower part of the arc-shaped pressing plate (5) is provided with an assembly cavity (56). The two assembly cavities (56) are symmetrically arranged, and a snap ring (6) is arranged between the two assembly cavities (56). Part of the structure of the snap ring (6) is placed in the assembly cavity (56).

2. The telescopic pipe fitting with an improved damping structure according to claim 1, wherein Positioning protrusions (55) are arranged on the inner wall of the arc-shaped pressing plate (5). The positioning protrusions (55) can be assembled in the positioning holes (3) on the inner tube (1). A protruding damping contact band (51) is arranged on the outer wall of the arc-shaped pressing plate (5).

3. The telescopic pipe fitting with an improved damping structure according to claim 1, characterized in that, A first partition plate (561) and a second partition plate (562) are arranged at the lower part of the arc-shaped pressing plate (5). The assembly cavity (56) is arranged between the first partition plate (561) and the second partition plate (562). A reinforcing rib (563) for supporting and strengthening is also arranged between the first partition plate (561) and the second partition plate (562).

4. The telescopic pipe fitting with an improved damping structure according to claim 1, characterized in that, The damping structure further includes a sleeve body (4). The sleeve body (4) is arranged inside the outer tube (2). When the inner tube (1) and the outer tube (2) are stretched to the longest, the sleeve body (4) abuts against the arc-shaped pressing plate (5) to achieve limit.

5. The telescopic pipe fitting with an improved damping structure according to claim 4, characterized in that, Second positioning protrusions (42) are arranged on the outer wall of the sleeve body (4). The second positioning protrusions (42) can be assembled in the positioning holes on the outer tube (2). A convex edge (41) is also arranged on the outer edge of the sleeve body (4).

6. The telescopic pipe fitting with an improved damping structure according to claim 5, characterized in that, A guiding slope (421) is arranged on one side of the second positioning protrusion (42).

7. The telescopic pipe fitting with an improved damping structure according to claim 4, characterized in that, Guiding grooves are arranged on the sides of the inner tube (1) and the outer tube (2). Corresponding guiding grooves (48) are arranged on the side of the sleeve body (4).

8. The telescopic pipe fitting with an improved damping structure according to any one of claims 1 to 7, characterized in that, The snap ring (6) is a C-shaped snap ring.

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