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A multi-stage telescopic casing device

A telescoping sleeve and sleeve technology, which is applied to the connection of rods, connecting components, weapons without explosives, etc., can solve the problems of affecting recovery, the force of throwing is not too large, and affecting the use effect, so as to achieve convenient recovery and guarantee The effect of intensity

Active Publication Date: 2018-01-12
BEIJING ICHINAE SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many defects in this locking method. When it is opened first, the force of the swing is not easy to be too large. Temporary force may cause the stick to be locked too tightly and affect recovery.
Secondly, when touching a person or a hard object during use, it is easy to automatically retract between the sticks, which affects the use effect

Method used

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  • A multi-stage telescopic casing device
  • A multi-stage telescopic casing device
  • A multi-stage telescopic casing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as Figure 1-7 The multi-stage telescopic sleeve device shown includes an outer tube 1, a set of inner tubes 2, a multi-petal buckle assembly 3, a positioning spring 4, a multi-petal expansion coil spring 5, an opening guide rod 6 and an opening button 7 , the bottom end of the outer tube 1 is equipped with an opening button 7 for controlling the expansion and contraction of the casing, the opening guide rod 6 is arranged in the outer tube 1 and connected with the opening button 7, the inner tube 2 is assembled in the outer tube 1, and the inner tube 2 The outer tube 1 at the bottom is equipped with a multi-petal buckle assembly 3, a positioning spring 4 and a multi-petal spring coil spring 5, and the multi-petal buckle assembly 3 is composed of two or more snap blocks 8 in an annular array Composition, the top of the buckle block 8 is a buckle conical arm 35, the middle part of the buckle block 8 has a buckle limit protrusion 9 outside, and a buckle locking protru...

Embodiment 2

[0038] like Figure 1-10 A multi-stage telescopic sleeve device shown, on the basis of Embodiment 1, the telescopic sleeve device has two sets of inner tubes 2, and a multi-petal buckle assembly 3 and a positioning spring are installed at the joints of the two sets of inner tubes 2 4 and a multi-lobe-shaped coil spring 5, the multi-lobe buckle assembly 3 is composed of two or more buckle blocks 8 in an annular array, and the middle part of the buckle block 8 has a buckle limit protrusion on the outside 9. There is a buckle locking protrusion 10 on the outside of the tail of the buckle block 8, and a positioning spring slot 11 and an expansion coil spring slot 12 are arranged on the inside of the buckle block 8. The positioning spring 4 is installed in the positioning spring slot 11 Inside, the multi-lobed coil spring 5 is installed in the coil spring slot 12 .

[0039] On the basis of contraction in Example 1, when there are two sets of inner tubes 2 and the second inner tube...

Embodiment 3

[0042] like figure 1 In the shown multi-stage telescopic sleeve device, on the basis of Embodiment 1 or 2, the outer tube 1 and the inner tube 2 are square sleeves.

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PUM

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Abstract

The invention discloses a multi-section telescopic sleeve device, comprising an outer tube, more than one set of inner tubes, a multi-lobed snap-fit ​​assembly, a positioning spring, a multi-lobed coil spring, an opening guide rod and an opening button. The bottom end is provided with an opening button for controlling the telescopic expansion of the sleeve, the opening guide rod is arranged in the outer tube and connected to the opening button, the inner tube is assembled in the outer tube, and the outer tube at the bottom end of the inner tube is installed with a multi-lobed snap-fit ​​assembly , a positioning spring and a multi-lobe expanding coil spring, the multi-lobe buckle assembly is composed of a ring-shaped array of more than two lobes of buckle blocks, the top of the buckle blocks is a buckle tapered arm, and the buckle blocks There is a buckle limit protrusion on the outside of the middle part of the buckle block, a buckle locking protrusion on the outer side of the tail of the buckle block, and a positioning spring slot and an expanding spring slot on the inner side of the buckle block. The positioning spring is installed in the positioning In the spring clamping groove, the multi-lobed expanding coil spring is installed in the expanding coil spring clamping groove.

Description

technical field [0001] The invention relates to the field of mechanical connection, in particular to a multi-stage telescopic sleeve device. Background technique [0002] Multi-section telescopic sleeves are used in many occasions that require multi-section extension and shortening, such as multi-section telescopic batons, multi-section hydraulic or pneumatic lifting devices, etc. In many cases, it is necessary to lock the multi-section sleeve after extension to provide the corresponding function. For example, a three-section baton requires three sections of casing to be fully expanded to achieve three-section fixation to achieve the function of being able to be used for striking. At present, the common locking methods of multi-section sleeves are as follows: the through lock spring type, when an elastic lock spring is locked, the lock spring penetrates the outer walls of the two sleeves, such as the application in the umbrella handle; the tapered sleeve type, The inner tu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B7/10F41B15/02F16M11/26
Inventor 王治国殷光强宋远强郭哲袁上荣王晓宁
Owner BEIJING ICHINAE SCI & TECH CO LTD
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