CN218877487U - Folding device capable of guaranteeing self-locking effect - Google Patents
Folding device capable of guaranteeing self-locking effect Download PDFInfo
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- CN218877487U CN218877487U CN202222384581.6U CN202222384581U CN218877487U CN 218877487 U CN218877487 U CN 218877487U CN 202222384581 U CN202222384581 U CN 202222384581U CN 218877487 U CN218877487 U CN 218877487U
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- handle
- clamping block
- folding
- folding device
- locking
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Abstract
The utility model discloses a folding device capable of guaranteeing self-locking effect, which comprises an upper folding tube and a lower folding tube, wherein one side of the upper folding tube and one side of the lower folding tube are mutually hinged, a handle is hinged with the free end of the lower folding tube through a handle shaft, the free end of the upper folding tube is provided with a mandril rotating shaft, the axis of the mandril rotating shaft is vertically provided with a mandril, the inner wall of the lower part of the handle is provided with a circular arc groove matched with the mandril, and an upper safety mechanism used for locking the upper folding tube and the handle is also arranged between the upper folding tube and the handle; and the handle shaft is also provided with a lower safety mechanism for locking the upper folding tube. The utility model discloses a stability when the improvement of structure can improve the folding device auto-lock guarantees the auto-lock effect, is difficult for loosening in making the folding device use, and then has improved folding device's security.
Description
Technical Field
The utility model relates to a folding device technical field specifically is a can guarantee folding device of auto-lock effect.
Background
With the development of society and the improvement of living standard of people, folding products such as folding bicycles, folding electric vehicles and folding scooters are continuously appeared in our lives, and the living standard of people is greatly improved. And the folding device plays a great role in the above folding type products. The folding device can reduce the volume of the folding product and can be conveniently stored after the folding is finished, so that the folding device is an important component of the folding product.
In view of this, the publication No. CN211107831U discloses a folding device with a self-locking function, which includes an upper folding tube and a lower folding tube hinged to each other through a rotation shaft at one side, and a handle hinged to a free end of the lower folding tube through a handle shaft, wherein a connection tube is fixedly connected to the upper folding tube, a push rod rotation shaft is arranged at the free end of the upper folding tube, and a push rod is vertically arranged on an axis of the push rod rotation shaft; an arc groove matched with the ejector rod is formed in the wall body at the lower part of the handle; the handle is also provided with a button which can slide up and down along the outer wall of the handle and a first locking block which is arranged in the handle in a sliding way and is fixedly connected with the button; a second locking block matched with the first locking block is fixedly connected to the connecting pipe; when the upper folding pipe and the lower folding pipe are overlapped and buckled with the handle, the top end of the ejector rod is tightly propped against the inner surface of the circular arc groove to form self-locking, and the first locking block and the second locking block are mutually clamped.
The above-described folding device has certain advantages. However, the applicant believes that there is still room for improvement in such a folding device, for example, the self-locking structure can be further improved to enhance the stability of the folding device during self-locking, ensure the self-locking effect, and make the folding device not easy to loosen during use.
Therefore, improvements in the prior art are needed.
Disclosure of Invention
To the problem that prior art exists above, the utility model aims at providing a can guarantee folding device of auto-lock effect, its improvement through the structure can improve the stability when folding device auto-lock, guarantees the auto-lock effect, makes folding device be difficult for loosening in the use, and then has improved folding device's security.
In order to realize the purpose, the technical scheme of the utility model is that:
a folding device capable of guaranteeing a self-locking effect comprises an upper folding pipe, a lower folding pipe and a handle, wherein one side of the upper folding pipe and one side of the lower folding pipe are mutually hinged, the handle is hinged with the free end of the lower folding pipe through a handle shaft, a mandril rotating shaft is arranged at the free end of the upper folding pipe, a mandril is vertically arranged on the axis of the mandril rotating shaft, an arc groove matched with the mandril is formed in the inner wall of the lower part of the handle, and an upper safety mechanism used for locking the upper folding pipe and the handle is further arranged between the upper folding pipe and the handle; and the handle shaft is also provided with a lower safety mechanism for locking the upper folding tube.
As a specific embodiment, the lower safety mechanism comprises a lower fixture block and a lower torsion spring which are respectively sleeved on the handle shaft; two end parts of the lower torsion spring are fixed on the lower folding pipe, and the middle part of the lower torsion spring is connected with the outer side of the upper end of the lower clamping block; the upper end of the lower clamping block is used for locking the upper folding pipe; the handle is matched with the lower clamping block, so that when the handle is opened outwards, the lower clamping block can be driven to overturn and be separated from the upper folding pipe.
Furthermore, the upper end of the lower clamping block is hook-shaped, and a first fixing clamping block which is correspondingly clamped with the upper end of the lower clamping block is arranged on the outer wall of the upper folding pipe.
Further, the lower end of the lower clamping block is an extension part which extends downwards and is used for being matched with the handle; when the handle is opened outwards, the lower end of the handle can be pressed towards the extending part, so that the upper end of the lower clamping block is separated from the first fixing clamping block.
As a specific embodiment, the upper safety mechanism comprises an upper clamping block, a positioning shaft, a spring and a second fixed clamping block; the second fixed clamping block is fixed on the outer wall of the upper folding pipe; the middle part of the upper clamping block is arranged on the inner side of the handle in a turnover manner through the positioning shaft, and the outer end of the upper clamping block penetrates out of the handle through a through hole; the inner end of the upper clamping block is used for clamping with the second fixed clamping block; the spring is fixed on the inner side of the handle, and the lower end of the spring is connected with the top of the upper clamping block.
Furthermore, the inner end of the upper clamping block is hook-shaped; the second fixed fixture block is T-shaped, and the head of the second fixed fixture block is used for being clamped with the inner end of the upper fixture block.
Furthermore, anti-skid grains are arranged on the outer end face of the upper clamping block.
As a specific embodiment, an upper torsion spring is sleeved on the rotating shaft of the mandril; one end of the upper torsion spring is fixed on the upper folding pipe, and the other end of the upper torsion spring is connected to the ejector rod.
As a specific embodiment, the ejector rod is screwed on the ejector rod rotating shaft.
As a specific example, two upper connecting parts and two lower connecting parts are provided on the free end of the upper folding tube and the free end of the lower folding tube, respectively, to be opposite to each other; the ejector rod rotating shaft is arranged on the two upper connecting parts; the handle shaft is installed on the two lower connecting parts.
The utility model has the advantages that:
the utility model discloses a set up after mutually supporting ejector pin and circular arc recess constitute one deck auto-lock structure, deuterogamy the setting of going up insurance mechanism and lower insurance mechanism, can reconstitute two-layer auto-lock structure, consequently, can strengthen the stability when folding device auto-lock by a wide margin through the setting of three-layer auto-lock structure, guaranteed the auto-lock effect promptly, make folding device be difficult for loosening in the use, and then improved folding device's security.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a longitudinal sectional view of the present invention;
FIG. 3 is a schematic view of the handle removed according to the present invention;
fig. 4 is a schematic view of a partial structure of the present invention.
Reference numerals:
1. an upper folding tube; 2. a lower folded tube; 3. a handle shaft; 4. a handle; 5. a rotating shaft of the mandril; 6. a top rod; 7. a circular arc groove; 8. a lower clamping block; 81. an extension portion; 9. a lower torsion spring; 10. a first fixed fixture block; 11. an upper clamping block; 12. positioning the shaft; 13. a spring; 14. a second fixed fixture block; 15. perforating; 16. an upper torsion spring; 17. an upper connecting portion; 18. and a lower connecting portion.
Description of the preferred embodiment
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. 1-4, a folding device capable of ensuring a self-locking effect comprises an upper folding tube 1 and a lower folding tube 2, one side of which is mutually hinged, a handle 4 hinged with the free end of the lower folding tube 2 through a handle shaft 3, a mandril rotating shaft 5 arranged at the free end of the upper folding tube 1, a mandril 6 vertically arranged on the axis of the mandril rotating shaft 5, an arc groove 7 matched with the mandril 6 arranged on the inner wall of the lower part of the handle 4, and an upper safety mechanism used for locking the upper folding tube 1 and the handle 4, which is arranged between the upper folding tube 1 and the handle 4; the handle shaft 3 is also provided with a lower safety mechanism for locking the upper folding tube 1, and the self-locking effect of the folding device can be ensured by arranging the upper safety mechanism and the lower safety mechanism, so that the folding device is prevented from being easily loosened.
As shown in fig. 2-4, the lower safety mechanism comprises a lower fixture block 8 and a lower torsion spring 9 respectively sleeved on the handle shaft 3; two end parts of a lower torsion spring 9 are fixed on the lower folding tube 2, and the middle part of the lower torsion spring 9 is connected with the outer side of the upper end of the lower clamping block 8; the upper end of the lower clamping block 8 is used for locking the upper folding pipe 1; the handle 4 is matched with the lower clamping block 8, so that when the handle 4 is opened outwards, the lower clamping block 8 can be driven to overturn and be separated from the upper folding tube 1, and the unlocking state of the lower safety mechanism is formed. Specifically, the upper end of the lower latch 8 is located inside the handle 4. Through the arrangement, the lower safety mechanism can be conveniently used, and the lower safety mechanism is specifically driven to overturn by the matching of the handle 4 and the lower torsion spring 9, so that the lower clamping block 8 is driven to overturn.
Preferably, as shown in fig. 2 to 4, the upper end of the lower latch 8 is hook-shaped, and a first fixing latch 10 for correspondingly engaging with the upper end of the lower latch 8 is disposed on the outer wall of the upper folding tube 1, that is, the lower latch 8 locks the upper folding tube 1 through the first fixing latch 10. Specifically, the first fixing latch 10 is integrally formed with the upper folding tube 1. Through the arrangement, the lower fixture block 8 can be stably and well clamped with the first fixed fixture block 10, so that a self-locking structure is formed.
More preferably, as shown in fig. 2-4, the lower end of the lower latch 8 is an extension 81 extending downward and used for cooperating with the handle 4; when the handle 4 is opened outward, the lower end of the handle 4 presses the extending portion 81 to separate the upper end of the lower latch 8 from the first fixed latch 10, and of course, when the lower latch 8 is restored, the elastic force of the lower torsion spring 9 is used for restoring. An opening is provided in the bottom of the handle 4 for engagement with the extension 81. Through the arrangement, the handle 4 can conveniently and effectively drive the lower clamping block 8.
As shown in fig. 3-4, the upper safety mechanism includes an upper latch 11, a positioning shaft 12, a spring 13 and a second fixed latch 14; the second fixed clamping block 14 is fixed on the outer wall of the upper folding tube 1; the middle part of the upper clamping block 11 is arranged on the inner side of the handle 4 in a turnable way through a positioning shaft 12, and the outer end of the upper clamping block 11 penetrates out of the handle 4 through a through hole 15; the inner end of the upper fixture block 11 is used for being clamped with the second fixed fixture block 14; the spring 13 is fixed inside the handle 4 and has a lower end connected to the top of the upper latch 11, specifically, the upper end of the spring 13 is connected to the inner wall of the handle 4, and the lower end is inserted into a plug hole at the top of the upper latch 11. After the upper clamping block 11 and the second fixed clamping block 14 are clamped through the arrangement, the handle 4 and the upper folding tube 1 can be locked, and a self-locking structure is formed.
Preferably, as shown in fig. 3-4, the inner end of the upper latch 11 is hook-shaped; the second fixed latch 14 is T-shaped, and the head of the second fixed latch 14 is used for being engaged with the inner end of the upper latch 11. Through the arrangement, the upper fixture block 11 and the second fixed fixture block 14 can be clamped to form a stable self-locking structure.
More preferably, as shown in fig. 1, anti-slip threads are provided on the outer end surface of the upper latch 11, so that it is easier and more convenient for a person to rotate the upper latch 11 up and down.
As shown in fig. 3, an upper torsion spring 16 is sleeved on the mandril rotating shaft 5; one end of the upper torsion spring 16 is fixed on the upper folding tube 1, and the other end is connected on the mandril 6. The upper torsion spring 16 can keep the elasticity of the mandril 6 when the top end of the mandril 6 is tightly abutted against the inner surface of the arc groove 7, so that the mandril 6 can be successfully reset when being separated from the handle 4; meanwhile, the upper torsion spring 16 can also push the mandril 6 in the process that the mandril 6 slides out of the arc groove 7. Since the upper torsion spring 16 is provided in the prior art, detailed description thereof is omitted.
As shown in fig. 3, the push rod 6 is screwed to the push rod rotation shaft 5, so that the position of the push rod 6 can be adjusted up and down by screwing the push rod 6.
As shown in fig. 3, two upper connecting portions 17 and two lower connecting portions 18 are provided on the free end of the upper folded tube 1 and the free end of the lower folded tube 2, respectively, to be opposed; the mandril rotating shaft 5 is arranged on the two upper connecting parts 17; the handle shaft 3 is mounted on two lower connection portions 18.
With reference to fig. 1-4, the following description will be made to the specific usage of the present invention, so as to understand the present invention:
when the upper folding tube 1 and the lower folding tube 2 are overlapped and buckled with the handle 4, the lower end of the handle 4 can be separated from the extending part 81, so that the upper end of the lower clamping block 8 can rotate inwards due to the pulling force of the lower torsion spring 9, at the moment, the outer end of the upper clamping block 11 slides downwards, the inner end of the upper clamping block 11 rotates upwards, after the upper clamping block 11 is released, the upper clamping block 11 rotates downwards and is just clamped on the second fixing clamping block 14 by utilizing the elastic force of the spring 13 to form self-locking, at the moment, the upper end of the lower clamping block 8 is just clamped with the first fixing clamping block 10 to form self-locking, and meanwhile, the inner surface of the circular groove 7 just slides over the highest vertex of the ejector rod 8 to be tightly abutted to form self-locking, so that the multilayer self-locking structure of the folding device is completed. Similarly, after the upper clamping block 11 is opened, the handle 4 can be turned outwards, so that the ejector rod 8 slides out of the arc groove 51, and when the handle 4 is turned, the lower end of the handle 4 is pressed to the extending part 81 until the upper end of the lower clamping block 8 is turned outwards to separate from the first fixing clamping block 10, so that the upper folding tube 1 and the lower folding tube 2 can be opened.
To sum up, the utility model discloses a set up behind the ejector pin of mutually supporting and the circular arc recess constitution one deck self-locking structure, the setting of upper safety mechanism and lower safety mechanism of deuterogamying can constitute two-layer self-locking structure again, consequently, can strengthen the stability when folding device auto-lock by a wide margin through three-layer self-locking structure's setting, has guaranteed the auto-lock effect promptly, makes folding device be difficult for loosening in the use, and then has improved folding device's security.
The present invention is not limited to the above embodiment, and if various modifications or variations of the present invention do not depart from the spirit and scope of the present invention, they are intended to be covered if they fall within the scope of the claims and the equivalent technology of the present invention.
Claims (9)
1. The utility model provides a can guarantee self-locking effect's folding device, includes one side mutual articulated last folding tube and lower folding tube, with the free end of folding tube passes through handle axle articulated handle down the free end of going up folding tube is equipped with an ejector pin pivot and is in the axis of ejector pin pivot is vertical to be equipped with an ejector pin seted up on the inner wall of handle lower part with ejector pin complex circular arc recess go up folding tube with still be provided with between the handle be used for with go up folding tube with the last safety mechanism of handle locking, its characterized in that:
the handle shaft is also provided with a lower safety mechanism for locking the upper folding tube; the lower safety mechanism comprises a lower clamping block and a lower torsion spring which are respectively sleeved on the handle shaft; the two end parts of the lower torsion spring are fixed on the lower folding pipe, and the middle part of the lower torsion spring is connected with the outer side of the upper end of the lower clamping block; the upper end of the lower clamping block is used for locking the upper folding pipe; the handle is matched with the lower clamping block, so that when the handle is opened outwards, the lower clamping block can be driven to overturn and be separated from the upper folding pipe.
2. A folding device ensuring self-locking effect according to claim 1, characterized in that:
the upper end of the lower clamping block is hook-shaped, and a first fixing clamping block which is correspondingly clamped with the upper end of the lower clamping block is arranged on the outer wall of the upper folding pipe.
3. A folding device with self-locking effect according to claim 2, characterized in that:
the lower end of the lower clamping block is an extension part which extends downwards and is used for being matched with the handle; when the handle is opened outwards, the lower end of the handle can be pressed towards the extending part, so that the upper end of the lower clamping block is separated from the first fixing clamping block.
4. A folding device ensuring self-locking effect according to claim 1, characterized in that:
the upper safety mechanism comprises an upper clamping block, a positioning shaft, a spring and a second fixed clamping block; the second fixed clamping block is fixed on the outer wall of the upper folding pipe; the middle part of the upper clamping block is arranged on the inner side of the handle in a turnover manner through the positioning shaft, and the outer end of the upper clamping block penetrates out of the handle through a through hole; the inner end of the upper clamping block is used for clamping with the second fixed clamping block; the spring is fixed on the inner side of the handle, and the lower end of the spring is connected with the top of the upper clamping block.
5. A folding device with self-locking effect according to claim 4, characterized in that:
the inner end of the upper clamping block is hook-shaped; the second fixed fixture block is T-shaped, and the head of the second fixed fixture block is used for being clamped with the inner end of the upper fixture block.
6. A folding device with self-locking effect according to claim 4, characterized in that:
and anti-skid grains are arranged on the outer end surface of the upper clamping block.
7. A folding device ensuring self-locking effect according to claim 1, characterized in that:
an upper torsion spring is sleeved on the ejector rod rotating shaft; one end of the upper torsion spring is fixed on the upper folding pipe, and the other end of the upper torsion spring is connected to the ejector rod.
8. A folding device ensuring self-locking effect according to claim 1, characterized in that:
the ejector rod is in threaded connection with the ejector rod rotating shaft.
9. A folding device ensuring self-locking effect according to claim 1, characterized in that:
two upper connecting parts and two lower connecting parts which are opposite to each other are respectively arranged on the free end of the upper folding pipe and the free end of the lower folding pipe; the ejector rod rotating shaft is arranged on the two upper connecting parts; the handle shaft is installed on the two lower connecting parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222384581.6U CN218877487U (en) | 2022-09-06 | 2022-09-06 | Folding device capable of guaranteeing self-locking effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222384581.6U CN218877487U (en) | 2022-09-06 | 2022-09-06 | Folding device capable of guaranteeing self-locking effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218877487U true CN218877487U (en) | 2023-04-18 |
Family
ID=85953841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222384581.6U Active CN218877487U (en) | 2022-09-06 | 2022-09-06 | Folding device capable of guaranteeing self-locking effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218877487U (en) |
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2022
- 2022-09-06 CN CN202222384581.6U patent/CN218877487U/en active Active
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