CN216269714U - Stable folding device of auto-lock - Google Patents
Stable folding device of auto-lock Download PDFInfo
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- CN216269714U CN216269714U CN202121653986.4U CN202121653986U CN216269714U CN 216269714 U CN216269714 U CN 216269714U CN 202121653986 U CN202121653986 U CN 202121653986U CN 216269714 U CN216269714 U CN 216269714U
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- folding device
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Abstract
The utility model discloses a folding device with self-locking stability, which comprises an upper main body and a lower main body, wherein one side of the upper main body and one side of the lower main body are hinged through a rotating shaft; a first arc groove matched with the ejector rod is formed in the wall body at the lower part of the handle, and a safety mechanism is arranged between the handle and the connecting pipe; the self-locking device also comprises a self-locking block and a self-locking rod; one end of the handle shaft penetrates through the lower main body to form a mounting end; one end of the push rod rotating shaft penetrates through the upper main body to form a self-locking end; the self-locking block is rotatably arranged on the mounting end, and a second arc groove matched with the self-locking end is formed in the wall body on the inner side of the self-locking block; one end of the self-locking rod is connected with one side of the handle, and the other end of the self-locking rod is matched with a blocking surface on the inner side of the self-locking block. The utility model enhances the stabilizing effect during self-locking and ensures that the self-locking function is safer and more reliable.
Description
Technical Field
The utility model relates to the technical field of folding devices, in particular to a folding device with stable self-locking.
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. The existing folding devices are of a plurality of types, but have the following defects in the using process: the self-locking device has a plurality of parts and a complex structure, so that the processing and installation difficulty is high, the time is long, and the production cost is very high; secondly, in order to ensure that tools such as the scooter and the like can slide safely and be folded reliably, the scooter and the like are very laborious to operate by both hands during folding, especially the scooter is very laborious to operate by children, and can be unfolded only by assistance of adults when necessary; thirdly, the self-locking device has many parts, and as long as one of the parts fails, the whole self-locking device can fail and the safety is poor.
In view of this, the publication number: CN211107831U discloses a folding device with self-locking function, which comprises an upper main body and a lower main body hinged at one side by a rotating shaft, and a handle hinged with the free end of the lower main body by a handle shaft, wherein the upper main body is fixedly connected with a connecting pipe, the free end of the upper main body is provided with a push rod rotating shaft, and the axis of the push rod rotating shaft is vertically provided with a push rod; 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 main body and the lower main body are overlapped and buckled with the handle, the top end of the ejector rod is abutted against the inner surface of the arc groove to form self-locking, and the first locking block and the second locking block are clamped with each other. Although this folding device has certain advantages, it still has certain disadvantages, for example, the stabilizing effect of this folding device in the case of self-locking still has room for enhancement. Therefore, there is a need for improvements in the prior art.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model aims to provide a folding device with stable self-locking, which has simple and reasonable structure, convenient folding operation and enhanced stable effect during self-locking, so that the self-locking function is safer and more reliable.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
a folding device with self-locking stability comprises an upper main body and a lower main body, wherein one side of the upper main body and one side of the lower main body are hinged through a rotating shaft, a handle is hinged with the free end of the lower main body through a handle shaft, a connecting pipe is fixedly connected to the upper main body, a push rod rotating shaft is arranged at the free end of the upper main body, and a push rod is vertically arranged on the axis of the push rod rotating shaft; a first arc groove matched with the ejector rod is formed in the wall body at the lower part of the handle, and a safety mechanism is arranged between the handle and the connecting pipe; the self-locking device also comprises a self-locking block and a self-locking rod; one end of the handle shaft penetrates through the lower main body to form a mounting end; one end of the push rod rotating shaft penetrates through the upper main body to form a self-locking end; the self-locking block is rotatably arranged on the mounting end, and a second arc groove matched with the self-locking end is formed in the wall body on the inner side of the self-locking block; one end of the self-locking rod is connected with one side of the handle, and the other end of the self-locking rod is matched with a blocking surface on the inner side of the self-locking block.
In a specific embodiment, a stop block horizontally extends from the side of the self-locking block facing the handle, and the stop surface is arranged on the inner side of the stop block.
As a specific embodiment, a clamping groove is arranged on the self-locking block, and one end of the self-locking torsion spring is inserted into the clamping groove.
As a specific embodiment, a jack is arranged on one side of the handle, and one end of the self-locking rod is inserted into the jack in an interference fit manner.
As a specific embodiment, the safety mechanism includes a button capable of sliding up and down along the outer wall of the handle, a first locking block which is arranged in the handle in a manner of sliding up and down and is fixedly connected with the button, and a second locking block which is fixedly connected to the connecting pipe and is matched with the first locking block.
Furthermore, the second locking block is fixedly connected with the connecting pipe through screws.
As a specific embodiment, the ejector rod is a screw, and is in threaded connection with the ejector rod rotating shaft.
As a specific embodiment, the rotating shaft of the ejector rod is sleeved with a reset torsion spring, one end of the reset torsion spring is fixed on the upper main body, and the other end of the reset torsion spring is sleeved on the ejector rod.
As a specific embodiment, the installation end is further sleeved with a self-locking torsion spring, one end of the self-locking torsion spring is connected with the self-locking block, and the other end of the self-locking torsion spring is connected with the lower main body.
The utility model has the beneficial effects that:
the folding self-locking mechanism is simple and reasonable in structure, convenient to fold and operate, and capable of enhancing the stabilizing effect during self-locking and enabling the self-locking function to be safer and more reliable; by arranging the self-locking block and the self-locking rod, after the handle is buckled, the top end of the ejector rod and the inner surface of the first arc groove form self-locking; then, the self-locking block is buckled, so that the highest peak of the self-locking end and the inner surface of the second arc groove form self-locking; and finally, the safety mechanism is closed, so that the first arc groove is firmer in contact with the ejector rod and the self-locking end and the second arc groove, a three-layer self-locking structure is formed, the handle is not easy to disengage, and the self-locking effect is more stable. Similarly, when this folding device needs the unblock, only need open safety mechanism, can outwards pull handle and make the first circular arc recess of top roll-off of ejector pin after that, when the handle removes, utilize the self-locking pole to support and tightly keep off the face, and finally outside promotion self-locking piece in step, make the highest summit of self-locking end also roll-off second circular arc recess, just so accomplished the unblock step, and only need outwards pull handle can realize the effect of outside promotion self-locking piece in step in the unblock process, high durability and convenient use.
Drawings
FIG. 1 is a first general structural diagram of the present invention;
FIG. 2 is a second overall structural schematic of the present invention;
FIG. 3 is a longitudinal cross-sectional view of the present invention;
FIG. 4 is a longitudinal cross-sectional view II of the present invention;
FIG. 5 is a partial schematic view of the first embodiment of the present invention;
FIG. 6 is a second partial schematic view of the present invention;
fig. 7 is a schematic diagram of a part of the structure of the utility model.
Reference numerals:
1. a rotating shaft; 2. an upper body; 3. a lower body; 4. a handle shaft; 41. an installation end; 5. a handle; 51. a first arc groove; 6. a connecting pipe; 7. a rotating shaft of the mandril; 71. a self-locking end; 8. a top rod; 9. a self-locking block; 91. A second arc groove; 92. a blocking surface; 93. a stopper; 10. a self-locking torsion spring; 11. a self-locking lever; 12. a button; 13. a first locking block; 14. a second locking block; 15. a return torsion spring.
Detailed Description
The utility model will be further elucidated with reference to the drawings and the embodiments, which are exemplary only and do not limit the scope of the utility model.
As shown in fig. 1-7, a self-locking stable folding device comprises an upper main body 2 and a lower main body 3 hinged to each other at one side through a rotating shaft 1, a handle 5 hinged to the free end of the lower main body 3 through a handle shaft 4, a connecting pipe 6 fixedly connected to the upper main body 2, a push rod rotating shaft 7 arranged at the free end of the upper main body 2, and a push rod 8 vertically arranged on the axis of the push rod rotating shaft 7; a first arc groove 51 matched with the mandril 8 is formed on the wall body at the lower part of the handle 5; a safety mechanism is also arranged between the handle 5 and the connecting pipe 6; the self-locking mechanism also comprises a self-locking block 9 and a self-locking rod 11; one end of the handle shaft 4 penetrates through the lower main body 3 to form a mounting end 41; one end of the mandril rotating shaft 7 penetrates through the upper main body 2 to form a self-locking end 71; the self-locking block 9 is rotatably arranged on the mounting end 41, and a second arc groove 91 matched with the self-locking end 71 is formed in the side wall of the inner side of the self-locking block 9; one end of the self-locking rod 11 is connected with one side of the handle 5, the other end of the self-locking rod is matched with a blocking surface 92 on the inner side of the self-locking block 9, specifically, a jack is arranged on one side of the handle 5, one end of the self-locking rod 11 is inserted into the jack in an interference fit mode, and the self-locking rod 11 is arranged in parallel with the handle shaft 4 and the ejector rod rotating shaft 7 respectively. When the upper body 2 and the lower body 3 are overlapped and the handle 5 is buckled, the top end of the mandril 8 is tightly propped against the inner surface of the first circular arc groove 51 to form self-locking, and when the self-locking block 9 is buckled, the self-locking end 71 is tightly propped against the inner surface of the second circular arc groove 91 to form self-locking, and the safety mechanism can be closed to be in a locking state. The folding self-locking mechanism is simple and reasonable in structure, convenient to fold and operate, and capable of enhancing the stabilizing effect during self-locking and enabling the self-locking function to be safer and more reliable; by arranging the self-locking block 9 and the self-locking rod 11, after the handle 5 is buckled, the top end of the ejector rod 8 and the inner surface of the first arc groove 51 form self-locking; then, the self-locking block 9 is buckled, so that the highest vertex of the self-locking end 71 and the inner surface of the second arc groove 91 form self-locking; and finally, the safety mechanism is closed, so that the first arc groove 51 is more firmly contacted with the ejector rod 8 and the self-locking end 71 is more firmly contacted with the second arc groove 91, a three-layer self-locking structure is formed, the handle 5 is not easy to disengage, and the self-locking effect is more stable. Similarly, when the folding device needs to be unlocked, only the safety mechanism needs to be opened, then the handle 5 can be pulled outwards to enable the top end of the ejector rod 8 to slide out of the first arc groove 51, when the handle 5 moves, the self-locking rod 11 is utilized to abut against the blocking surface 92, and finally the self-locking block 9 is pushed outwards synchronously, so that the highest top point of the self-locking end 71 also slides out of the second arc groove 91, the unlocking step is completed, and the effect of synchronously pushing the self-locking block 9 outwards can be realized only by pulling the handle 5 outwards in the unlocking process, so that the folding device is convenient to use.
As shown in fig. 4-7, a self-locking torsion spring 10 is further sleeved on the mounting end 41, one end of the self-locking torsion spring 10 is connected to the self-locking block 9, the other end of the self-locking torsion spring 10 is connected to the lower main body 3, specifically, a slot is arranged on the self-locking block 9, and one end of the self-locking torsion spring 10 is inserted into the slot. The self-locking torsion spring 10 is arranged so that when the self-locking end 71 abuts against the inner surface of the second arc groove 91 or the self-locking end 71 is separated from the second arc groove 91, the self-locking block 9 always keeps the trend of moving inwards, the self-locking end 71 and the second arc groove 91 are more stable during self-locking, and the self-locking block 9 can be conveniently reset after being separated from the self-locking end 71.
As shown in fig. 5 to 7, a stopper 93 horizontally extends from the lock piece 9 toward the handle 5, and the stopper 92 is provided inside the stopper 93, so that the stopper 92 can be conveniently provided.
As shown in fig. 1-4, the safety mechanism includes a button 12 capable of sliding up and down along the outer wall of the handle 5, a first locking block 13 fixedly connected with the button 12 and slidably arranged in the handle 5, and a second locking block 14 fixedly connected to the connecting pipe 6 and cooperating with the first locking block 13. Preferably, the second locking block 14 is fixedly connected with the connecting pipe 6 through screws. Of course, the first locking block 13 and the second locking block 14 are further provided with a first latch and a second latch, respectively, which are engaged with each other. When locking, only need push button 12 downwards, make first fixture block and second fixture block mutually can to can strengthen folding device's auto-lock effect, prevent that handle 5 from breaking away. Since the safety mechanism is prior art, it is not described in detail here.
The ejector rod 8 is a screw and is in threaded connection with the ejector rod rotating shaft 7, so that the height of the screw can be conveniently adjusted to be adjusted to the required height.
As shown in fig. 5-7, a return torsion spring 15 is sleeved on the spindle 7, one end of the return torsion spring 15 is fixed on the upper body 2, and the other end of the return torsion spring 15 is sleeved on the spindle 8. When the top end of the ejector rod 8 is tightly abutted to the inner surface of the first arc groove 51 through the reset torsion spring 15, the ejector rod 8 can always keep the trend of moving outwards, so that the ejector rod 8 can be reset smoothly when being separated from the handle 5; meanwhile, the reset torsion spring 15 can also push the top rod 8 in the process that the top rod 8 slides out of the first arc groove 51.
The following describes the principle of use of the utility model in order to understand the utility model:
when the upper main body 2 and the lower main body 3 are overlapped and buckled with the handle, the self-locking rod 11 is synchronously driven to move and leave the blocking surface 92, and the inner surface of the first arc groove 51 slides through the highest vertex of the ejector rod 8 and is abutted to form self-locking; then, the self-locking block 9 is pushed inwards, so that the inner surface of the second arc-shaped groove 91 slides over the highest vertex of the self-locking end 71 and is abutted to form self-locking; then, the push button 12 slides downwards to drive the first locking block 13 to slide downwards, and finally, the first locking block and the second locking block 14 are locked in a clamping manner, so that the upper main body 2 and the lower main body 3 cannot be automatically opened, and locking is completed. Similarly, the button 12 is pushed in the opposite direction to drive the first locking block 13 to slide in the opposite direction, so that the first locking block 13 is separated from the second locking block 14, then the handle 5 can be pulled outwards to enable the ejector rod 8 to slide out of the first arc groove 51, when the handle 5 moves, the self-locking rod 11 synchronously moves outwards until the self-locking rod abuts against the blocking surface 92, the self-locking rod 11 pushes the self-locking block 9 outwards to move, the self-locking end 71 slides out of the second arc groove 91, one end of the self-locking torsion spring 10 is pulled outwards to enable the self-locking block 9 to keep the trend of moving inwards, the upper main body 2 and the lower main body 3 can be opened through the steps, unlocking is completed, and the purpose of opening the self-locking block 9 can be synchronously realized only by pulling the handle 5 outwards, so that the use is convenient.
The present invention is not limited to the above-described embodiments, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.
Claims (9)
1. A folding device with self-locking stability comprises an upper main body and a lower main body, wherein one side of the upper main body and one side of the lower main body are hinged through a rotating shaft, a handle is hinged with the free end of the lower main body through a handle shaft, a connecting pipe is fixedly connected to the upper main body, a push rod rotating shaft is arranged at the free end of the upper main body, and a push rod is vertically arranged on the axis of the push rod rotating shaft; seted up on the wall body of handle lower part with the first circular arc recess of ejector pin complex the handle with still be provided with a safety mechanism, its characterized in that between the connecting pipe:
the self-locking device also comprises a self-locking block and a self-locking rod; one end of the handle shaft penetrates through the lower main body to form a mounting end; one end of the push rod rotating shaft penetrates through the upper main body to form a self-locking end; the self-locking block is rotatably arranged on the mounting end, and a second arc groove matched with the self-locking end is formed in the wall body on the inner side of the self-locking block; one end of the self-locking rod is connected with one side of the handle, and the other end of the self-locking rod is matched with a blocking surface on the inner side of the self-locking block.
2. The self-locking stable folding device of claim 1, wherein:
a stop block horizontally extends from the side of the self-locking block facing the handle, and the stop surface is arranged on the inner side of the stop block.
3. The self-locking stable folding device of claim 1, wherein:
one side of the handle is provided with a jack, and one end of the self-locking rod is inserted into the jack in an interference fit manner.
4. The self-locking stable folding device of claim 1, wherein:
the safety mechanism comprises a button capable of sliding up and down on the outer wall of the handle, a first locking block capable of sliding up and down in the handle and fixedly connected with the button, and a second locking block fixedly connected to the connecting pipe and matched with the first locking block.
5. The self-locking stable folding device of claim 4, wherein:
the second locking block is fixedly connected with the connecting pipe through screws.
6. The self-locking stable folding device of claim 1, wherein:
the ejector rod is a screw and is in threaded connection with the ejector rod rotating shaft.
7. The self-locking stable folding device of claim 1, wherein:
the push rod is sleeved with a reset torsion spring, one end of the reset torsion spring is fixed to the upper main body, and the other end of the reset torsion spring is sleeved on the push rod.
8. The self-locking stable folding device of claim 1, wherein:
still the cover is equipped with the auto-lock torsional spring on the installation end, the one end of auto-lock torsional spring with the auto-lock piece is connected, the other end of auto-lock torsional spring with the main part is connected down.
9. The self-locking stable folding device of claim 8, wherein:
a clamping groove is formed in the self-locking block, and one end of the self-locking torsion spring is inserted into the clamping groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121653986.4U CN216269714U (en) | 2021-07-20 | 2021-07-20 | Stable folding device of auto-lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121653986.4U CN216269714U (en) | 2021-07-20 | 2021-07-20 | Stable folding device of auto-lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216269714U true CN216269714U (en) | 2022-04-12 |
Family
ID=81059154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121653986.4U Active CN216269714U (en) | 2021-07-20 | 2021-07-20 | Stable folding device of auto-lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216269714U (en) |
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2021
- 2021-07-20 CN CN202121653986.4U patent/CN216269714U/en active Active
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