CN218431567U

CN218431567U - Folder with safety mechanism

Info

Publication number: CN218431567U
Application number: CN202222266471.XU
Authority: CN
Inventors: 朱炎根
Original assignee: Dongguan Yuanshun Hardware Products Co ltd
Current assignee: Dongguan Yuanshun Hardware Products Co ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2023-02-03
Anticipated expiration: 2032-08-26

Abstract

The utility model discloses a folder with a safety mechanism, which comprises a first folding pipe, a second folding pipe, a knob and an insert block; the bottom of the first end of the first folding pipe is hinged with the bottom of the first end of the second folding pipe; the top of the first end of the first folding pipe and the top of the first end of the second folding pipe are respectively provided with a slot which corresponds to each other; the insertion block is in a shape of '20886', and two ends of the insertion block can be correspondingly inserted into the two slots by being driven by a knob connected to the second folding pipe; also comprises a safety mechanism; an installation cavity which is used for installing a safety mechanism and has an opening at the upper end is arranged between the first end of the first folding pipe and the first end of the second folding pipe; the safety mechanism can be used for locking the first folding pipe and the second folding pipe to form a self-locking structure. The utility model discloses can provide dual auto-lock effect to improve the security performance, and it still has advantages such as simple structure and convenient operation.

Description

Folder with safety mechanism

Technical Field

The utility model relates to a scray technical field specifically is a scray of taking insurance mechanism.

Background

In the existing life, folding carts are more and more popular, and the folding carts generally need to be folded by using a folder. For example, the foldable scooter can adopt a convenient folder disclosed by an authorized bulletin number CN216887072U, and the folder comprises a first folding tube, a second folding tube and a knob; the bottom of the first end of the first folding pipe is hinged with the bottom of the first end of the second folding pipe; a first locking block and a second locking block which are matched with each other are respectively arranged at the top of the first end of the first folding tube and the top of the first end of the second folding tube, and a clamping groove matched with the first locking block and the second locking block is arranged on the knob; a threaded hole is formed in the first locking block; a threaded rod matched with the threaded hole is arranged on the knob; when the threaded rod is screwed into the threaded hole downwards, the knob is covered on the first locking block and the second locking block in a matched manner through the clamping groove, and a self-locking structure is formed. Although this folder has the advantages of simple and reasonable structure, low cost, and convenient installation and use, it has some disadvantages, such as: because the folder only has a heavy self-locking effect of knob and first locking piece and second locking piece block, so, if it often when the highway section of jolting is used, the knob has probably because receive vibrations for a long time and outwards loosen naturally, has caused automatic unblock effect promptly, and then leads to comparatively easily appearing danger, so, this kind of folder still has certain security problem.

Accordingly, there is a need for improvements in the art.

SUMMERY OF THE UTILITY MODEL

To the problem that prior art exists above, the utility model aims at providing a take scray of insurance mechanism, it can provide dual auto-lock effect to improve the security performance, and it still has advantages such as simple structure and convenient operation.

In order to realize the purpose, the technical scheme of the utility model is that:

a folder with a safety mechanism comprises a first folding pipe, a second folding pipe, a knob and an inserting block; the bottom of the first end of the first folding pipe is hinged with the bottom of the first end of the second folding pipe; a slot corresponding to each other is respectively arranged at the top of the first end of the first folding pipe and the top of the first end of the second folding pipe; the insertion block is in a shape of '20886', and two ends of the insertion block can be correspondingly inserted into the two slots by being driven by the knob connected to the second folding tube; also comprises a safety mechanism; an installation cavity which is used for installing the safety mechanism and has an opening at the upper end is arranged between the first end of the first folding pipe and the first end of the second folding pipe; the safety mechanism can be used for locking the first folding pipe and the second folding pipe to form a self-locking structure.

For the additional structure of the above technical scheme, the following scheme is also included:

as a specific embodiment, the safety mechanism comprises a lock block, a first lock rod, a second lock rod and a torsion spring; the first end of the first lock rod is fixed on the second folding pipe, and the second end of the first lock rod is movably connected with the first end of the lock block; the second end of the locking block is respectively provided with a push-pull part and a bayonet which are distributed up and down; the first end of the second lock rod is fixed on the first folding pipe, and the second end of the second lock rod is used for being clamped and tightly abutted with the bayonet; the torsional spring sleeve is arranged on the first lock rod, and two ends of the torsional spring are fixedly connected with the locking block and the second folding pipe respectively.

Further, the push-pull portion extends outwards out of the installation cavity.

Furthermore, the outer end of the push-pull part is spherical, and the push-pull part is positioned outside the insertion block.

As a specific embodiment, the knob comprises a head part, a screw part connected to the lower end of the head part and a baffle ring arranged on the outer wall of the screw part; the middle of the insert block is sleeved on the screw rod part in a self-rotating manner, and the head part and the baffle ring clamp the insert block; still be provided with a screw hole on the top of the first end of second folded tube, just the lower extreme threaded connection of screw rod portion is in the screw hole.

As a specific embodiment, the peripheral outer wall of the head is provided with anti-skid grains.

As a specific embodiment, the head portion and the screw portion are locked by a screw.

As a specific embodiment, the side surfaces of the two slots close to each other are corresponding first inclined surfaces, and the positions where the two ends of the insertion block are correspondingly matched with the two first inclined surfaces are second inclined surfaces.

As a specific embodiment, a position-locking groove is disposed on the first end of the first folding tube, and a position-locking portion capable of being correspondingly locked with the position-locking groove is disposed on the first end of the second folding tube.

As a specific embodiment, the bottom of the first end of the first folded tube is hinged to the bottom of the first end of the second folded tube by a rotating shaft.

The beneficial effects of the utility model are that:

the utility model discloses a reciprocating of knob can be used to drive and insert between the both ends of inserted block and two slots and close or break away from, so that form first heavy auto-lock effect, reach second heavy auto-lock effect through safety mechanism's use again, so, through the setting of this dual auto-lock structure, even the knob probably loosens in the use and causes the inserted block outwards not hard up, but still have this heavy auto-lock structure of safety mechanism to carry out the auto-lock, so that be difficult for being launched between first folding pipe and the second folding pipe, therefore, the security performance of scray can be guaranteed widely in this kind of design. And simultaneously, the utility model discloses still have advantages such as simple structure and convenient operation.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the overall structure of the present invention;

fig. 3 is a longitudinal sectional view of the present invention;

fig. 4 is a schematic structural view of the present invention after the first folding tube is removed;

fig. 5 is a schematic structural view of the present invention with the knob removed;

fig. 6 is a schematic structural diagram of the safety mechanism of the present invention.

Reference numerals are as follows:

1. a first folded tube; 2. a second folded tube; 3. a knob; 31. a head portion; 32. a screw section; 33. a baffle ring; 4. inserting a block; 5. a safety mechanism; 51. a locking block; 511. a push-pull section; 512. a bayonet; 52. a first lock lever; 53. a second lock lever; 54. a torsion spring; 6. a slot; 7. a threaded hole; 8. a mounting cavity; 9. a first inclined plane; 10. a second inclined plane; 11. a clamping groove; 12. a clamping part; 13. a rotating shaft.

Detailed Description

The invention will be further elucidated with reference to the drawings and the embodiments, which are exemplary only and do not limit the scope of the invention.

As shown in fig. 1-6, a folder with a safety mechanism comprises a first folding tube 1, a second folding tube 2, a knob 3 and an insertion block 4; the bottom of the first end of the first folding tube 1 is hinged with the bottom of the first end of the second folding tube 2; the top of the first end of the first folding pipe 1 and the top of the first end of the second folding pipe 2 are respectively provided with a slot 6 which correspond to each other; the inserting block 4 is n-shaped, the inserting block 4 is driven by a knob 3 connected to the second folding pipe 2, and two ends of the inserting block 4 can be correspondingly inserted into the two slots 6; also comprises a safety mechanism 5; an installation cavity 8 which is used for installing the safety mechanism 5 and has an opening at the upper end is also arranged between the first end of the first folding pipe 1 and the first end of the second folding pipe 2; the safety mechanism 5 can be used for locking the first folding tube 1 and the second folding tube 2 to form a self-locking structure.

Specifically, the safety mechanism 5 includes a lock block 51, a first lock lever 52, a second lock lever 53 and a torsion spring 54; the first end of the first lock rod 52 is fixed on the second folding tube 2, and the second end is movably connected with the first end of the lock block 51; a push-pull part 511 and a bayonet 512 which are distributed up and down are respectively arranged at the second end of the locking block 51; the first end of the second lock rod 53 is fixed on the first folding tube 1, and the second end is used for being clamped and abutted against the bayonet 512; the torsion spring 54 is sleeved on the first lock rod 52, and two ends of the torsion spring 54 are respectively fixedly connected with the lock block 51 and the second folding tube 2.

Preferably, the pushing and pulling portion 511 extends outward to form the mounting cavity 8, so as to facilitate pushing and pulling by people.

More preferably, as shown in fig. 4, the outer end of the push-pull portion 511 is spherical, and the push-pull portion 511 is located outside the insert block 4, so that the push-pull portion 511 can be prevented from obstructing the normal use of the insert block 4.

As shown in fig. 3 and 6, the knob 3 includes a head 31, a screw portion 32 connected to a lower end of the head 31, and a retainer ring 33 provided on an outer wall of the screw portion 32; the middle of the insert 4 is rotatably sleeved on the screw part 32, and the head part 31 and the retaining ring 33 clamp the insert 4 to prevent the insert 4 from loosening, wherein the joint of the screw part 32 and the insert 4 is not provided with threads, so that the insert 4 can freely rotate when not inserted into the slot 6; a threaded hole 7 is further provided on the top of the first end of the second folded pipe 2, and the lower end of the screw part 32 is threadedly coupled in the threaded hole.

As shown in fig. 1, the head 31 is provided with anti-slip lines on its peripheral outer wall, so that the knob 3 can be rotated more stably and conveniently.

The head 31 and the screw rod 32 are locked by screws, so that the head 31 and the screw rod 32 can be conveniently assembled and connected, and the production efficiency is improved.

Preferably, the retainer ring 33 is integrally formed with the screw portion 32.

As shown in fig. 3, the side surfaces of the two slots 6 close to each other are corresponding first inclined surfaces 9, and the positions of the two ends of the insertion block 4 correspondingly matching the two first inclined surfaces 9 are corresponding second inclined surfaces 10.

As shown in fig. 5, a locking groove 11 is formed at the first end of the first folding tube 1, and a locking portion 12 that can be locked in the locking groove 11 is formed at the first end of the second folding tube 2.

As shown in fig. 1, the bottom of the first end of the first folding tube 1 is hinged to the bottom of the first end of the second folding tube 2 by a rotating shaft 13.

With reference to fig. 1 to 6, the following description will be made to the specific usage of the present invention, so as to understand the present invention:

when the folder needs to be unfolded, the head 31 is screwed upwards to synchronously drive the screw part 32 and the retaining ring 33 to ascend, and the retaining ring 33 drives the inserting block 4 to ascend when ascending until the two ends of the inserting block 4 are separated from the two slots 6 respectively to complete first re-unlocking, and then the push-pull part 511 is pulled upwards to separate the bayonet 512 from the second locking rod 53 to complete second re-unlocking, so that no constraint force is applied between the first end of the first folding tube 1 and the first end of the second folding tube 2, that is, the first folding tube 1 and the second folding tube 2 can be unfolded and folded.

When the folder needs to be self-locked, the first folding tube 1 and the second folding tube 2 are firstly turned over in the opposite direction until the clamping portion 12 is clamped into the clamping groove 11 in a matching manner, then the push-pull portion 511 is pushed downwards to clamp and abut against the clamping opening 512 and the second locking bar 53, so that the first folding tube 1 and the second folding tube 2 are basically kept in a horizontal state and the first repeated self-locking is completed, and finally the head portion 31 is screwed downwards to drive the screw portion 32 to move into the threaded hole 7 and downwards press the inserting block 4 to move downwards by using the head portion 31 until the two ends of the inserting block 4 are respectively inserted into the two slots 6, so that the second repeated self-locking of the folder is completed, namely the first folding tube 1 and the second folding tube 2 cannot be unfolded.

To sum up, the utility model discloses a reciprocating of knob can be used to drive and inserts between the both ends of inserted block and two slots and close or break away from to form first heavy auto-lock effect, reach second heavy auto-lock effect through the use of safety mechanism again after that, so, through the setting of this dual auto-lock structure, even the knob probably loosens and causes the inserted block outwards not hard up in the use, but still have this heavy auto-lock structure of safety mechanism to carry out the auto-lock, so that be difficult for being launched between first folding pipe and the second folding pipe, consequently, the security performance of scray can be guaranteed widely in this kind of design. And simultaneously, the utility model discloses still have advantages such as simple structure and convenient operation.

The present invention is not limited to the above embodiment, and if various modifications or variations of the present invention are not departed from the spirit and scope of the present invention, provided they fall within the scope of the claims and the equivalent technical scope of the present invention, then the present invention is also intended to include such modifications and variations.

Claims

1. A folder with a safety mechanism comprises a first folding tube, a second folding tube, a knob and an insertion block; the bottom of the first end of first folded tube with the bottom of the first end of second folded tube is articulated, its characterized in that:

a slot corresponding to each other is respectively arranged at the top of the first end of the first folding pipe and the top of the first end of the second folding pipe; the insertion block is in a shape of '20886', and two ends of the insertion block can be correspondingly inserted into the two slots by being driven by the knob connected to the second folding pipe; also comprises a safety mechanism; an installation cavity which is used for installing the safety mechanism and has an opening at the upper end is arranged between the first end of the first folding pipe and the first end of the second folding pipe; the safety mechanism can be used for locking the first folding pipe and the second folding pipe to form a self-locking structure.

2. The folder with safety mechanism as claimed in claim 1, wherein:

the safety mechanism comprises a locking block, a first locking rod, a second locking rod and a torsion spring; the first end of the first lock rod is fixed on the second folding pipe, and the second end of the first lock rod is movably connected with the first end of the lock block; the second end of the locking block is respectively provided with a push-pull part and a bayonet which are distributed up and down; the first end of the second lock rod is fixed on the first folding pipe, and the second end of the second lock rod is used for being clamped and tightly abutted with the bayonet; the torsional spring cover is established on the first locking lever just the both ends of torsional spring respectively with the locking piece with second folding pipe fixed connection.

3. The folder with safety mechanism as claimed in claim 2, wherein:

the push-pull part extends outwards to form the installation cavity.

4. A folder with a safety mechanism as recited in claim 3, wherein:

the outer end of the push-pull part is spherical, and the push-pull part is positioned outside the insert block.

5. The folder with safety mechanism as claimed in claim 1, wherein:

the knob comprises a head part, a screw rod part connected to the lower end of the head part and a baffle ring arranged on the outer wall of the screw rod part; the middle of the insert block is sleeved on the screw rod part in a self-rotating manner, and the head part and the baffle ring clamp the insert block; the top of the first end of the second folding pipe is also provided with a threaded hole, and the lower end of the screw rod part is in threaded connection with the threaded hole.

6. The folder with safety mechanism as claimed in claim 5, wherein:

the outer wall around the head is provided with anti-skid grains.

7. The folder with safety mechanism as claimed in claim 5, wherein:

the head part and the screw rod part are locked through screws.

8. The folder with safety mechanism as claimed in claim 1, wherein:

the side surfaces, close to each other, of the two slots are corresponding first inclined surfaces, and the positions, corresponding to the two first inclined surfaces, of the two ends of the inserting block are second inclined surfaces.

9. The folder with safety mechanism as claimed in claim 1, wherein:

a clamping groove is arranged at the first end of the first folding pipe, and a clamping part which can be correspondingly clamped with the clamping groove is arranged at the first end of the second folding pipe.

10. The folder with safety mechanism as claimed in claim 1, wherein:

the bottom of the first end of the first folding pipe is hinged with the bottom of the first end of the second folding pipe through a rotating shaft.