CN219629012U

CN219629012U - Self-locking draw-bar and draw-bar box

Info

Publication number: CN219629012U
Application number: CN202021129766.7U
Authority: CN
Inventors: 曾冰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2023-09-05
Anticipated expiration: 2030-06-17

Abstract

The utility model provides a self-locking pull rod and a pull rod box, which finish the self-locking of the pull rod through the matching of a stop buckle, an outer pipe and an inner pipe, do not need the prior pull rod, such as a button, a spring, a sliding block, a compression bar, a presser foot and other various parts, have simple structure, lighten the weight of the pull rod, reduce the manufacturing cost, simplify the production process, strengthen the overall design sense of the appearance of the pull rod, and are convenient for users to use.

Description

Self-locking draw-bar and draw-bar box

Technical Field

The utility model relates to the technical field of bags, in particular to a self-locking draw-bar and a draw-bar box.

Background

At present, the pull rod mechanism of the pull rod box is composed of an inner tube and an outer tube, a button at the top is used for controlling a sliding block at the lower part, a spring is used for ejecting the sliding block from a hole in the tube wall to clamp the outer tube, the button is pressed down again, the sliding block is contracted, the outer tube can be pulled and slid freely, and the whole pull rod structure has various parts and complex structure and production process.

Disclosure of Invention

The utility model provides a self-locking draw bar and a draw bar box, which aim to solve the defects and shortcomings of the prior art.

In order to achieve the above purpose, the technical scheme adopted by the utility model is that the self-locking pull rod comprises an outer pipe, an inner pipe sleeved in the outer pipe, and a stop buckle rotatably installed at the bottom end of the inner pipe, wherein the side surface of the outer pipe is provided with a plurality of outer pipe stop buckle locking holes corresponding to the stop buckle positions, the self-locking pull rod further comprises a control plug for installing the stop buckle, the control plug is installed at the bottom of the inner pipe, the control plug is provided with a limiting notch, the stop buckle is provided with a contact part and a clamping part, the weight of the contact part is heavier than that of the clamping part, the contact part and the clamping part are installed in the control plug, the clamping part is clamped with the limiting notch, and the clamping part can extend out of the limiting notch to be clamped with the outer pipe stop buckle locking hole; when the inner tube is pulled vertically upwards, the limiting notch rises to the outer tube stop buckle lock hole, and the stop buckle rotates to enable the stop part to extend out of the limiting notch and be clamped with the outer tube stop buckle lock hole due to the fact that the weight of the contact part is heavier than that of the clamping part.

The locking device comprises an outer pipe, an inner pipe, a control plug, a lock catch, a first limiting part, a second limiting part and a lock catch, and is characterized by further comprising the lock catch, wherein the lock catch is arranged on the control plug, a sleeve skin is arranged between the outer pipe and the inner pipe, the sleeve skin is positioned on the inner side of the top end of the outer pipe, the lock catch is arranged above the stop catch, the lock catch comprises a limiting hole and a hook part, the hook part can extend out of the control plug to be in contact with the sleeve skin, a touch point extending towards the direction of the inner pipe is arranged on the outer pipe, the touch point is correspondingly arranged with the stop catch locking hole of the outer pipe, the hook part is positioned above the touch part, and the control plug is provided with the first limiting part and the second limiting part which can be clamped with the limiting hole; when the inner tube is continuously pulled vertically upwards, the hook part touches the bottom of the sheath, and rotates downwards to hook the touch part due to the pressure of the sheath, and the limiting hole is also changed from being clamped with the first limiting part to be clamped with the second limiting part; when the inner tube is pressed vertically downwards, the hook part can be contacted with the touch point and separated from the touch part due to the resistance of the touch point, and the limiting hole is also changed from being clamped with the second limiting part to be clamped with the first limiting part.

A draw-bar box comprising any one of the self-locking draw bars described above.

The utility model has the beneficial effects that:

Drawings

FIG. 1 is a schematic view of a self-locking tie rod of the present utility model when the tie rod is vertically pulled;

FIG. 2 is a schematic diagram of the self-locking tie rod of the present utility model when the tie rod is vertically locked;

FIG. 3 is a schematic view of the self-locking tie rod of the present utility model when the catch hooks the anti-retraction buckle when the tie rod is vertical;

FIG. 4 is a schematic view of the self-locking tie rod of the present utility model with the bump point unlocked when the tie rod is pulled vertically down the tie rod.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings, which are simplified schematic illustrations, illustrating the basic structure of the utility model by way of illustration only, the direction of this embodiment being the direction of fig. 1.

As shown in fig. 1 to 4, in the self-locking pull rod in this embodiment, the self-locking pull rod further includes a lock catch 7 and a control plug 6 for installing the anti-retraction buckle 41 and the lock catch 7, the control plug 6 is installed at the bottom of the inner tube 2, the outer tube 1 is provided with a touch point 5 extending towards the direction of the inner tube 2, the touch point 5 is arranged corresponding to the outer tube anti-retraction buckle locking hole 11, the anti-retraction buckle 41 is provided with a touch portion 411 and a clamping portion 412, the weight of the touch portion 411 is heavier than that of the clamping portion 412, the touch portion 411 and the clamping portion 412 are installed in the control plug 6, the clamping portion 412 is clamped with the limiting notch, and the clamping portion 412 can extend out of the limiting notch to be clamped with the outer tube anti-retraction buckle locking hole 11; when the inner tube 2 is pulled vertically upwards, the limiting notch rises to the outer tube retaining lock hole 11, and the retaining buckle 41 rotates because the weight of the contact portion 411 is heavier than that of the clamping portion 412, so that the clamping portion 412 can extend out of the limiting notch to be clamped with the outer tube retaining lock hole 11. When the inner tube 2 is pushed down again, the inner tube 2 is locked and cannot be pushed down continuously, and the draw-bar box can be pushed away. If the inner tube 2 is pulled up, the catch 41 is retracted into the outer tube 1, and the inner tube 2 is unlocked.

A sheath 8 is arranged between the outer tube 1 and the inner tube 2, the sheath 8 is positioned at the inner side of the top end of the outer tube 1, a lock catch 7 is arranged above the anti-folding buckle 41, the lock catch 7 comprises a limiting hole 71 and a hook part 72, a limiting groove is arranged on the control plug 6, the hook part 72 can extend out of the limiting groove of the control plug 6 to be contacted with the sheath 8, the hook part 72 is positioned above the contact part 411, and a first limiting part 61 and a second limiting part 62 which can be clamped with the limiting hole 71 are arranged on the control plug 6; when the inner tube 2 is continuously pulled vertically upwards, the hook part 72 touches the bottom of the sleeve 8, and rotates downwards to hook the touch part 411 due to the pressure of the sleeve 8, and the limit hole 71 is also changed from being clamped with the first limit part 61 to being clamped with the second limit part 62; when the inner tube 2 is pressed vertically downward, the hook 72 contacts the catch point 5 (at this time, the catch 412 has passed the outer tube retaining lock hole 11) and is separated from the contact 411 due to the resistance of the catch point 5. At the same time, the limiting hole 71 is also changed from being clamped with the second limiting part 62 to being clamped with the first limiting part 61, so that the inner tube 2 can be taken up.

The utility model also provides a draw-bar box, which comprises any self-locking draw bar. By using the self-locking pull rod and the pull rod box, the self-locking of the pull rod is completed through the cooperation of the anti-folding buckle, the outer pipe and the inner pipe, and various parts such as a button, a spring, a sliding block, a pressing rod, a pressing foot and the like of the traditional pull rod are not needed, so that the self-locking pull rod and the pull rod box are simple in structure, the weight of the pull rod is reduced, the manufacturing cost is reduced, the production process is simplified, the overall design sense of the appearance of the pull rod is enhanced, and the use is convenient for a user.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the utility model.

Claims

1. The utility model provides a self-locking pull rod, includes the outer tube, overlaps locates inner tube in the outer tube and rotate and install the end of inner tube bottom is received and is detained, the side of outer tube be equipped with a plurality of with end to receive the corresponding outer tube of knot position and stop to receive knot lockhole, its characterized in that: the outer tube anti-folding buckle comprises an inner tube and is characterized by further comprising a control plug used for installing the anti-folding buckle, wherein the control plug is installed at the bottom of the inner tube, a limiting notch is formed in the control plug, a contact part and a clamping part are arranged on the anti-folding buckle, the weight of the contact part is heavier than that of the clamping part, the contact part and the clamping part are installed in the control plug, the clamping part is clamped with the limiting notch, and the clamping part can extend out of the limiting notch to be clamped with an outer tube anti-folding buckle locking hole; when the inner tube is pulled vertically upwards, the limiting notch rises to the outer tube stop buckle lock hole, and the stop buckle rotates to enable the stop part to extend out of the limiting notch and be clamped with the outer tube stop buckle lock hole due to the fact that the weight of the contact part is heavier than that of the clamping part.

2. The self-locking tie rod of claim 1, wherein: the lock catch is arranged in the control plug, a sheath is arranged between the outer tube and the inner tube, the sheath is positioned on the inner side of the top end of the outer tube, the lock catch is arranged above the stop buckle, the lock catch comprises a limiting hole and a hook part, the hook part can extend out of the control plug to be in contact with the sheath, a touch point extending towards the direction of the inner tube is arranged on the outer tube, the touch point is correspondingly arranged with the stop buckle locking hole of the outer tube, the hook part is positioned above the touch part, and a first limiting part and a second limiting part which can be clamped with the limiting hole are arranged on the control plug; when the inner tube is continuously pulled vertically upwards, the hook part touches the bottom of the sheath, and rotates downwards to hook the touch part due to the pressure of the sheath, and the limiting hole is also changed from being clamped with the first limiting part to be clamped with the second limiting part; when the inner tube is pressed vertically downwards, the hook part can be contacted with the touch point and separated from the touch part due to the resistance of the touch point, and the limiting hole is also changed from being clamped with the second limiting part to be clamped with the first limiting part.

3. A draw-bar box, characterized in that: comprising a self-locking tie rod according to any one of claims 1-2.