Telescopic pipe positioning mechanism

Abstract

According to the telescopic pipe positioning mechanism, a telescopic pipe comprises a first pipe body and a second pipe body which are connected in a sleeved mode and can slide relative to each other, a marble is installed on the first pipe body, an installation hole for containing the marble is formed in the pipe wall of the first pipe body, the first pipe body is sleeved with the second pipe body, and a marble hole corresponding to the marble is formed in the pipe wall of the second pipe body; a pressing piece used for pressing the marbles inwards is arranged on the outer side of the second pipe body, and a protective cover arranged at the end of the pressing piece in a covering mode is arranged on the outer wall of the second pipe body. Compared with the prior art, the telescopic pipe positioning mechanism has the advantages that when the telescopic pipe of the telescopic pipe positioning mechanism stretches out and draws back, a user only needs to press the pressing piece to enable the marble to retract inwards, the phenomenon of finger pain is avoided due to the fact that the contact area of fingers and the pressing piece is large, pressing is labor-saving and convenient through a lever force arm, and in addition, the telescopic pipe positioning mechanism is convenient to use. And the phenomenon that finger flesh is injured when the pipe is pulled up and down is avoided, so that the use is safer.

Description

Technical Field

[0001] The utility model relates to a telescopic tube, in particular to a telescopic tube positioning mechanism. Background Art

[0002] The existing telescopic pipe fittings that are connected up and down mostly use spring caps or marbles protruding from the marble holes of the pipe fittings to buckle and fix the positions of the two pipe fittings. When in use, it is necessary to directly press down the spring cap with your fingers to make it retract into the pipe fitting, and then the upper pipe fitting slides downward to achieve the telescopic movement of the two pipe fittings. Due to the gap between the spring cap and the marble hole of the pipe fitting, the operator's fingers are easily caught in the gap when pressing the spring cap with his fingers, causing damage to the fingers when the pipe fitting slides. At the same time, if the diameter difference between the two pipe fittings is large, the edge of the pipe fitting is also easy to pinch people when the pipe fitting slides. Moreover, if the spring cap is not very flexible, it will be very painful to press it with your hand, and the user experience is poor. In addition, it is often the case that the spring cap does not rebound and get stuck in place during use, and the sliding of the two pipe fittings causes damage to the fingers. In summary, further improvements need to be made to the existing telescopic tube positioning mechanism. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a telescopic tube positioning mechanism with convenient and labor-saving telescopic operation and no harm to fingers during telescopic operation in view of the above-mentioned existing technical status.

[0004] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a telescopic tube positioning mechanism, the telescopic tube includes a first tube body and a second tube body which are mutually sleeved and can slide relatively, a marble is installed on the first tube body, and correspondingly, a mounting hole for accommodating the marble is opened on the tube wall of the first tube body, the second tube body is sleeved on the outside of the first tube body, and a marble hole corresponding to the marble is opened on the tube wall of the second tube body, characterized in that a pressing piece for pressing the marble inward is provided on the outer side of the second tube body, and a protective cover covering the end of the pressing piece is provided on the outer wall of the second tube body.

[0005] In order to prevent the user from accidentally pushing the pressing piece upward, the second tube body is sleeved under the first tube body, the pressing piece has a pressing portion facing the marble, the pressing portion has a handle extending downward, and the protective cover is arranged below the marble hole and covers the outside of the handle.

[0006] In order to avoid shaking due to the large gap between the first tube body and the second tube body, a nested piece is provided between the first tube body and the second tube body. The nested piece is sleeved on the first tube body and fixed on the second tube body. The nested piece has an avoidance hole or avoidance groove for avoiding the marbles.

[0007] The nesting piece can be fixed on the second tube body in a variety of ways. Preferably, a limiting hole is opened on the tube wall of the second tube body, and a limiting block is protruded on the nesting piece, and the limiting block is limited in the limiting hole.

[0008] Further preferably, the limiting hole and the ball hole are respectively arranged on two opposite sides of the second tube body.

[0009] As a preferred solution, the pressing piece and the nesting piece are an integral piece, and the pressing piece is exposed outside the second tube body.

[0010] Further preferably, the pressing piece and the nesting piece are both plastic pieces.

[0011] As another preferred solution, the pressing plate and the second tube body are an integral piece, and the pressing plate is fixed on the outer wall of the second tube body.

[0012] The pressing piece and the second tube body are both metal parts.

[0013] Compared with the prior art, the advantages of the utility model are: the telescopic tube of the telescopic tube positioning mechanism includes a first tube body and a second tube body which are mutually socketed and can slide relatively, a marble is installed on the first tube body, and a marble hole corresponding to the marble is opened on the tube wall of the second tube body. Since a pressing plate for pressing the marble inward is provided on the outer side of the second tube body, and a protective cover is provided on the outer wall of the second tube body to cover the end of the pressing plate, when telescoping, the user only needs to press the pressing plate to retract the marble inward, and since the contact area between the finger and the pressing plate is large, the finger pain will not occur, and by using the lever arm, pressing is also more labor-saving and convenient. In addition, there will be no damage to the finger flesh when the tube is pulled up and down, and it is safer to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of the telescopic tube positioning mechanism of the first embodiment of the utility model;

[0015] Figure 2 for Figure 1 An exploded schematic diagram of the telescopic tube positioning mechanism shown;

[0016] Figure 3 for Figure 1 An exploded schematic diagram of the telescopic tube positioning mechanism shown in another angle;

[0017] Figure 4 for Figure 1 A structural cross-sectional view of the telescopic tube positioning mechanism shown;

[0018] Figure 5 This is a structural schematic diagram of the telescopic tube positioning mechanism of the second embodiment of the utility model;

[0019] Figure 6 for Figure 5 An exploded schematic diagram of the telescopic tube positioning mechanism shown;

[0020] Figure 7 for Figure 5 A structural sectional view of the telescopic tube positioning mechanism shown. DETAILED DESCRIPTION

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] Embodiment 1:

[0023] like Figures 1 to 4 As shown, the telescopic tube of the telescopic tube positioning mechanism of this embodiment includes a first tube body 1 and a second tube body 2 which are sleeved and can slide relative to each other. A marble 3 is installed on the first tube body 1. Correspondingly, a mounting hole 11 for accommodating the marble 3 is opened on the tube wall of the first tube body 1. A spring piece 31 is installed inside the first tube body 1. When the marble 3 is pressed inward, the spring piece 31 is compressed. When the external force acting on the marble 3 disappears, the compressed spring piece 31 is reset, and the marble 3 is reset forward under the elastic force of the spring piece 31. The second tube body 2 is sleeved on the outside of the first tube body 1 and is located below the first tube body 1. A marble hole 21 corresponding to the marble 3 is opened on the tube wall of the second tube body 2. When the first tube body 1 and the second tube body 2 are positioned, the marble 3 extends forward from the marble hole 21. A pressing sheet 4 for pressing the marble 3 inward is provided on the outer side of the second tube body 2. In this embodiment, the pressing sheet 4 and the second tube body 2 are an integral piece and are made of uniform metal. The pressing sheet 4 is welded and fixed to the outer wall of the second tube body 2.

[0024] The pressing piece 4 has a pressing portion 41 facing the marble 3, and a handle 42 extends downward from the pressing portion 41. A protective cover 5 is provided on the outer wall of the second tube body 2, and the protective cover 5 is arranged below the marble hole 21 and covers the outside of the handle 42. The function of the protective cover 5 is to prevent the user from accidentally pulling the pressing piece 4 upward.

[0025] In this embodiment, a nesting piece 6 is further provided between the first tube body 1 and the second tube body 2. The nesting piece 6 is sleeved on the first tube body 1. The main function of the nesting piece 6 is to avoid shaking caused by the large gap between the first tube body 1 and the second tube body 2. A limiting hole 22 is provided on the tube wall of the second tube body 2. The limiting hole 22 and the marble hole 21 are respectively provided on two opposite sides of the second tube body 2. A limiting block 62 is convexly provided on the nesting piece 6. The limiting block 62 is limited in the limiting hole 22, so that the first tube body 1 and the second tube body 2 can be fixed to each other. In addition, in order to avoid the marble 3, the nesting piece 6 is provided with an avoidance hole or avoidance groove 61 or an avoidance gap.

[0026] When the first tube body 1 and the second tube body 2 are locked with each other, the marble 3 extends forward from the marble hole 21. When extension is required, first press the pressing plate 4 with your fingers, the marble 3 starts to move inward, and then pull the first tube body 1 upward with force. Under the action of the pulling force, the marble 3 is separated from the second tube body 2 and the nesting piece 6, so that the first tube body 1 can move upward relative to the second tube body 2. When locking is required, release the pressing plate 4, insert the first tube body 1 downward, and when the marble 3 moves to the position corresponding to the marble hole 21, the marble 3 pops out forward under the action of the spring plate 31 and passes through the marble hole 21, realizing the mutual locking of the first tube body 1 and the second tube body 2.

[0027] Embodiment 2:

[0028] like Figures 5 to 7 As shown, the pressing piece 4 and the nesting piece 6 of this embodiment are integrated and are both plastic. The pressing piece 4 is exposed on the outer wall of the second tube 2 and also plays the role of pressing the marble 3. The rest of the structure and working principle of this embodiment are the same as those of the first embodiment, and will not be described in detail here.

Claims

1. A telescopic tube positioning mechanism, the telescopic tube comprising a first tube body (1) and a second tube body (2) which are sleeved and can slide relative to each other, a marble (3) is installed on the first tube body (1), and correspondingly, a mounting hole (11) for accommodating the marble (3) is opened on the tube wall of the first tube body (1), the second tube body (2) is sleeved outside the first tube body (1), and a marble hole (21) corresponding to the marble (3) is opened on the tube wall of the second tube body (2), characterized in that: A pressing piece (4) for pressing the marble (3) inward is provided on the outer side of the second tube (2), and a protective cover (5) covering the end of the pressing piece (4) is provided on the outer wall of the second tube (2).

2. The telescopic tube positioning mechanism according to claim 1, characterized in that: The second tube body (2) is sleeved below the first tube body (1); the pressing piece (4) has a pressing portion (41) facing the marble (3); a handle (42) extends downward from the pressing portion (41); and the protective cover (5) is arranged below the marble hole (21) and covers the outside of the handle (42).

3. The telescopic tube positioning mechanism according to claim 1, characterized in that: A nesting piece (6) is also provided between the first tube body (1) and the second tube body (2); the nesting piece (6) is sleeved on the first tube body (1) and fixed on the second tube body (2); the nesting piece (6) is provided with an escape hole or an escape groove (61) for evading the marble (3).

4. The telescopic tube positioning mechanism according to claim 3, characterized in that: A limiting hole (22) is provided on the wall of the second tube body (2), and a limiting block (62) is protrudingly provided on the nesting piece (6), wherein the limiting block (62) is limited in the limiting hole (22).

5. The telescopic tube positioning mechanism according to claim 4, characterized in that: The limiting hole (22) and the ball hole (21) are respectively arranged on two opposite sides of the second tube body (2).

6. The telescopic tube positioning mechanism according to any one of claims 1 to 5, characterized in that: The pressing piece (4) and the nesting piece (6) are an integral piece, and the pressing piece (4) is exposed outside the second tube body (2).

7. The telescopic tube positioning mechanism according to claim 6, characterized in that: The pressing piece (4) and the nesting piece (6) are both plastic parts.

8. The telescopic tube positioning mechanism according to any one of claims 1 to 5, characterized in that: The pressing plate (4) and the second tube body (2) are an integral part, and the pressing plate (4) is fixed on the outer wall of the second tube body (2).

9. The telescopic tube positioning mechanism according to claim 8, characterized in that: The pressing plate (4) and the second tube body (2) are both metal parts.

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