Spring telescopic stick

Abstract

A brake structure comprises a limiting clamp, the limiting clamp is fixed on a rotating shaft, the rotating shaft penetrates through a button support and is rotatably connected with the button support, an opening groove is formed in the position, corresponding to the limiting clamp, of a release button, and the limiting clamp rotates along with the rotating shaft to abut against the bottom wall of the opening groove. A rotary knob is fixed to one end of the rotating shaft and makes tight contact with the button support, and the safety locking state of the telescopic stick after the telescopic stick is contracted can be guaranteed through the arranged braking structure.

Description

Technical Field

[0001] This utility model relates to the field of telescopic baton technology, specifically to a spring telescopic baton. Background Technology

[0002] The staff, a bladeless weapon, is often referred to as the "king of weapons." It is a striking weapon in Chinese martial arts. Traditional martial arts staffs are long, thin rods with a simple structure and fixed length. However, their excessive length makes them inconvenient to carry and use on public transportation. This led to the development of various telescopic spring-loaded staffs. Existing spring-loaded telescopic staffs lock in place after retraction by a release button that engages with a groove at the head of the staff. However, the release button lacks a safe and stable braking mechanism, making it easy to accidentally activate and cause the small tube to suddenly release without warning, resulting in unnecessary damage. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In order to overcome the shortcomings of the existing technology, a spring telescopic rod is proposed to solve the problems mentioned in the background technology.

[0005] (II) Technical Solution

[0006] This utility model is achieved through the following technical solution: This utility model proposes a spring telescopic rod, which is composed of a large tube, a middle tube, and a small tube, which are nested in sequence. A middle tube release spring is set inside the large tube, which can push out the middle tube. A small tube release spring is set inside the middle tube, which can push out the small tube. A rod head is set at the end of the small tube, and a groove is set on the rod head. A release button is set on the large tube. The middle part of the release button is hinged to a button support and can rotate relative to it. The button support is fixed to the large tube. A protrusion is set at the end of the release button, which can lock the middle tube and the small tube by engaging the groove. It also includes a braking structure, which includes a limit card. The limit card is fixed on a rotating shaft. The rotating shaft passes through the button support and is rotatably connected to it. An opening groove is set on the release button at the position corresponding to the limit card. The limit card rotates with the rotating shaft until it abuts against the bottom wall of the opening groove. A knob is fixed at one end of the rotating shaft, and the knob is in close contact with the button support.

[0007] Furthermore, the knob is cam-shaped.

[0008] Furthermore, the button support is provided with limiting blocks, which are located at the lower middle ends of the button support. After the knob is rotated 90° clockwise and counterclockwise, its protruding end can abut against the two limiting blocks respectively.

[0009] (III) Beneficial Effects

[0010] Compared with the prior art, this utility model has the following advantages:

[0011] The spring telescopic rod mentioned in this utility model can ensure a safe locking state after the telescopic rod is retracted by a braking structure. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the first structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the second structure of this utility model.

[0014] 1-Rod head; 2-Groove; 3-Release button; 31-Protrusion; 32-Opening groove; 4-Button support; 41-Limit block; 5-Limit card; 51-Rotating shaft; 6-Knob. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] like Figure 1 and Figure 2 The spring-loaded telescopic rod shown comprises a large tube, a middle tube, and a small tube, which are nested sequentially. A middle tube release spring is installed inside the large tube, capable of pushing out the middle tube. A small tube release spring is installed inside the middle tube, capable of pushing out the small tube. A rod head 1 is located at the end of the small tube, with a groove 2 on the rod head 1. A release button 3 is located on the large tube, with its middle portion hinged to a button support 4 and capable of relative rotation. The button support 4 is fixed to the large tube, and a protrusion is provided at the end of the release button 3. 31. The protrusion 31 can lock the middle tube and the small tube in the groove 2. The feature is that it also includes a braking structure, which includes a limiting card 5. The limiting card 5 is fixed on the rotating shaft 51. The rotating shaft 51 passes through the button support 4 and is rotatably connected to it. The release button 3 is provided with an opening groove 32 at the position corresponding to the limiting card 5. The limiting card 5 rotates with the rotating shaft 51 until it abuts against the bottom wall of the opening groove 32. A knob 6 is fixed at one end of the rotating shaft 51 and the knob 6 is in close contact with the button support 4.

[0017] Furthermore, the knob 6 is cam-shaped.

[0018] Furthermore, the button support 4 is provided with a limiting block 41, and the limiting block 41 is located at the lower middle two ends of the button support 4. After the knob 6 is rotated 90° forward and backward, its protruding end can abut against the two limiting blocks 41 respectively.

[0019] The spring telescopic baton mentioned in this utility model, through the setting of a safe and stable braking structure, can ensure the locking effect after the baton is retracted.

[0020] Specifically, when the rod body retracts, the protrusion 31 on the release button 3 engages with the groove 2 on the rod head 1, thus locking the large, medium, and small tubes. Simultaneously, rotating the knob 6 causes the rotating shaft 51 to rotate until it contacts the limiting block 41 below. The limiting clip 5 on the rotating shaft 5 then contacts the bottom wall of the opening groove 32 on the release button 3, thus braking the release button 3 and preventing it from rotating due to accidental contact. Furthermore, the sliding contact between the knob 6 and the outer wall of the button support 4 ensures that the knob 6 will not easily loosen or rotate under no force, further guaranteeing the braking effect.

[0021] Correspondingly, simply turn the knob 6 to control the limit card 5 to disengage from the bottom wall of the opening groove 32. At this time, the release button 3 can be rotated by moving the tail of the release button 3, so that the protrusion at its front end can disengage from the groove, thereby completing the rapid release of the telescopic baton.

[0022] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A spring-loaded telescopic rod, comprising a large tube, a middle tube, and a small tube, the large tube, the middle tube, and the small tube being nested in sequence, wherein a middle tube release spring is provided inside the large tube, the middle tube release spring being able to push out the middle tube, a small tube release spring is provided inside the middle tube, the small tube release spring being able to push out the small tube, a rod head (1) is provided at the end of the small tube, a groove (2) is provided on the rod head (1), a release button (3) is provided on the large tube, the middle part of the release button (3) is hinged to a button support (4) and can rotate relative to it, the button support (4) is fixed to the large tube, and a protrusion (31) is provided at the end of the release button (3), the protrusion (31) being able to engage the groove (2) to lock the middle tube and the small tube, characterized in that: The brake structure comprises a limiting clamp (5) fixed on a rotating shaft (51) which is arranged through and rotatably connected with the button support (4), and an opening slot (32) is arranged on the release button (3) corresponding to the position of the limiting clamp (5), and the limiting clamp (5) rotates with the rotating shaft (51) to abut against the bottom wall of the opening slot (32), and one end of the rotating shaft (51) is fixed with a knob (6) which is in close contact with the button support (4).

2. A spring flex bat according to claim 1, wherein: The knob (6) is in the shape of a cam.

3. A spring flex bat according to claim 2, wherein: The button support (4) is provided with limiting blocks (41) arranged at the middle and lower ends of the button support (4), and the protruding end of the knob (6) can abut against the two limiting blocks (41) respectively after 90° rotation in the positive and negative directions.

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