CN221718723U - Folding locking structure with auto-lock - Google Patents

Abstract

The utility model discloses a folding locking structure with self-locking, which comprises a first seat body, a second seat body and a fixing device, wherein one side of the first seat body is hinged with the second seat body, so that the first seat body can be folded and swung relative to the second seat body, and the fixing device comprises a movable buckle, a movable handle, a plug and a fastening nail which can be arranged on the first seat body in a swinging way; the movable handle is provided with a self-locking assembly which can be matched with the buckling nails for locking or unlocking; the movable buckle is provided with buckle teeth which can be matched with the plug for locking or unlocking. When the locking device is locked, the movable handle can be covered on the periphery of the fixing device, so that the fixing device is prevented from being corroded by burning sun, rainwater and the like, the phenomena of aging, rust and the like are effectively avoided, the stability can be ensured, the service life is long, and the locking device is durable; meanwhile, the two locking structures form the fixing device, so that the overall strength of the structure is greatly enhanced, and even if riding with high strength, the bicycle cannot shake, so that the tightness is excellent.

Description

A folding locking structure with self-locking

Technical field:

The utility model relates to the technical field of bicycle handlebars, in particular to a folding locking structure with self-locking function.

Background technology:

With the development and increase of fuel-powered cars and new energy vehicles, the problem of urban traffic congestion has become increasingly serious, bringing great inconvenience to people's travel and greatly increasing the time for commuting and travel. In addition, with the accelerated pace of life nowadays, bicycles, electric bicycles, power-assisted bicycles and scooters are widely used and are becoming more and more popular because of their convenience and small space.

Traditional bicycles, electric bicycles, power-assisted bicycles and scooters are mostly equipped with a support structure extending upward on the front of the vehicle, such as a frame head tube connected to the front end of the scooter base. The frame head tube can also be installed on the front of a bicycle or electric vehicle to install a front fork (for installing the front wheel) and a riser connected to the front fork. The riser is provided with a cantilever extending forward longitudinally, and the handlebar is transversely installed at the end of the cantilever away from the riser (the cantilever and the riser constitute the stem for installing the handlebar), so that the rider can hold and pull a pair of handles to drive the stem to link the front fork and the front wheel to turn left and right. In order to ensure riding safety, the stem needs to have a locking ability when in use, and cannot be loosened or slipped, so the fixing structure on the stem is particularly important.

At present, the more common stem fixing structures on the market are fixed by the way of matching the shaft hole, and a limiting edge is set on the "shaft" to match the sleeve hole to achieve the limiting effect, and finally the stem is fixed by screws on the outside of the sleeve hole. For example, the Chinese utility model patent with patent announcement number: CN 216301365 U discloses a new type of electric bicycle stem structure, which includes: a head tube and a vertical tube passing through the top of the head tube; a limiting connection structure is set on the end of the vertical tube; a stem is ringed on the limiting connection structure; the stem is detachably fixed to the limiting connection structure; the stem is detachably fixed to the vertical tube clamp. However, this existing electric bicycle stem structure is prone to aging, rusting, etc. because its locking screws are exposed to the outside, and the aging of the screws will directly affect the locking ability of the structure, resulting in the stability of the entire stem structure being affected, and even the structure will become loose and slip, and the durability is poor.

There is also a more common stem fixing structure, which achieves the fixing effect through a hoop that can tighten the stem, and is also provided with a device that can adjust the tightness of the hoop by swinging, such as the Chinese utility model patent with patent announcement number: CN 218172447U discloses an electric bicycle stem structure and an electric vehicle, which includes: a stem tube, a quick release fixedly connected to the upper end of the stem tube, and a fastening notch is provided at the upper end of the stem tube. However, due to its own structural characteristics, this existing stem structure has only one locking structure, which is weak in strength, resulting in poor fastening performance and may cause shaking during riding.

In view of this, the inventor proposes the following technical solution.

Utility model content:

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a folding locking structure with self-locking.

In order to solve the above technical problems, the utility model adopts the following technical solution: a folding and locking structure with self-locking, comprising a first seat, a second seat and a fixing device for locking the first seat and the second seat, wherein one side of the first seat is hinged to the second seat, so that the first seat can be folded and swung relative to the second seat, characterized in that:

The fixing device includes a movable buckle swingably disposed on the first base, a movable handle swingably disposed on the first base and located outside the movable buckle, a plug disposed on the second base, and a buckle pin installed on the second base;

The movable handle is provided with a self-locking component capable of locking or unlocking in cooperation with the buckle pin;

The movable buckle is formed with buckle teeth that can cooperate with the plug to lock or unlock.

Furthermore, in the above technical solution, a pressing portion is formed at the lower end of the movable handle, and correspondingly, a blocking portion is formed at the lower end of the movable buckle.

Further, in the above technical solution, a first pair of ears is formed on the first seat body, and correspondingly, a second pair of ears for inserting a plug is formed on the second seat body; a first through hole and a second through hole are formed in the first pair of ears, a first rotating block is rotatably provided in the first through hole, and a second rotating block is rotatably provided in the second through hole, a first special-shaped hole for matching with the first rotating block is formed on the movable handle, and a second special-shaped hole for matching with the second rotating block is also formed on the movable handle; a first through hole is formed on the first rotating block, and a second through hole is formed on the second rotating block, a first rotating shaft is inserted in the first through hole and the second through hole, and the movable buckle is arranged on the first rotating shaft and is located between the first rotating block and the second rotating block.

Furthermore, in the above technical solution, the first through hole on the first rotating block is eccentrically arranged, and the second through hole on the second rotating block is also eccentrically arranged.

Furthermore, in the above technical solution, a torsion spring is also sleeved on the first rotating shaft, and the torsion spring acts between the first seat body and the movable buckle, and makes the movable buckle have a tendency to approach the plug; a spring groove is formed on the first seat body, one end of the torsion spring is inserted into the spring groove, and the other end of the torsion spring is in contact with the movable buckle.

Furthermore, in the above technical solution, a screw hole is formed on the movable buckle, and an adjustment screw for reducing the gap between the buckle teeth and the plug is correspondingly spirally installed in the screw hole; a round pin for auxiliary adjustment is also inserted on one side of the movable buckle.

Furthermore, in the above technical solution, the upper end of the movable handle is respectively provided with a first avoidance hole and a second avoidance hole, the self-locking component includes a fastening piece for matching and fastening with the fastening nail, a self-locking rod inserted into the first avoidance hole and the second avoidance hole, and a pressure spring sleeved on the self-locking rod, wherein a pressing portion is formed at one end of the self-locking rod, the pressing portion is abutted against the fastening piece and partially exposed from the movable handle, the fastening piece is sleeved on the self-locking rod and is located between the first avoidance hole and the second avoidance hole, and the pressure spring acts on the fastening piece and makes the fastening piece tend to approach the fastening nail.

Furthermore, in the above technical solution, a vertical tube is sleeved on the second seat body, and the fastening nail passes through the side wall of the vertical tube and is inserted into the second seat body.

Furthermore, in the above technical solution, a gap is left on the first seat body, and a first mounting hole and a second mounting hole are respectively formed on both sides of the gap. A first pull bolt is installed in the first mounting hole, and a second pull bolt is installed in the second mounting hole.

Furthermore, in the above technical solution, a strip edge section for increasing friction is formed on one end of the plug.

After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: in the utility model, two locking structures of a movable buckle and a plug, and a movable handle and a buckle pin are used to form a fixing device, which can firmly lock the first seat body and the second seat body. When locked, the movable handle can cover the outer periphery of the fixing device to protect the fixing device from erosion by the sun, rain, etc., effectively avoiding aging, rust, etc., and can ensure stability, effectively avoiding the loosening and slipping of the structure, with a long service life and durability; at the same time, the two locking structures form the fixing device, which greatly enhances the overall strength of the structure. After locking, there will be no shaking even during high-intensity riding, and the tightness is excellent.

Description of the drawings:

Fig. 1 is a perspective view of the utility model;

Fig. 2 is a cross-sectional view of the utility model;

FIG3 is a schematic diagram of the utility model in use;

FIG4 is a schematic diagram of the structure of the utility model after removing the movable handle;

FIG5 is an exploded view of the fixing device in the present invention;

FIG. 6 is a perspective schematic diagram of the first seat body in the present invention.

Specific implementation method:

The utility model is further described below in conjunction with specific embodiments and drawings.

As shown in FIGS. 1 to 6 , a folding and locking structure with self-locking is shown, which includes a first base body 1, a second base body 2, and a fixing device 3 for locking the first base body 1 and the second base body 2, wherein one side of the first base body 1 is hinged to the second base body 2, so that the first base body 1 can be folded and swung relative to the second base body 2, and is characterized in that:

The fixing device 3 includes a movable buckle 31 swingably disposed on the first base body 1, a movable handle 32 swingably disposed on the first base body 1 and located outside the movable buckle 31, a plug 33 disposed on the second base body 2, and a buckle pin 34 installed on the second base body 2;

The movable handle 32 is provided with a self-locking component 40 that can cooperate with the buckle pin 34 to lock or unlock;

The movable buckle 31 is formed with buckle teeth 311 that can cooperate with the plug 33 to lock or unlock.

Specifically, after unlocking the self-locking assembly 40 , the movable handle 32 is swung downward to press against the lower end of the movable buckle 31 and drive the buckle teeth 311 of the movable buckle 31 away from the plug 33 to release the locking of the fixing device 3 on the first seat body 1 and the second seat body 2 .

In terms of structural implementation, the utility model adopts two locking structures, namely, a movable buckle 31 cooperates with a plug 33, and a movable handle 32 cooperates with a buckle pin 34 to form a fixing device 3, which can firmly lock the first seat body 1 and the second seat body 2. When locked, the movable handle can cover the outer periphery of the fixing device to protect the fixing device from erosion by the sun, rain, etc., effectively avoiding aging, rust, etc., and can ensure stability, effectively avoiding the loosening and slipping of the structure, and has a long service life and is durable. At the same time, the two locking structures form the fixing device 3, which greatly enhances the overall strength of the structure. After locking, there will be no shaking even during high-intensity riding, and the fastening is excellent.

In addition, when the self-locking component 40 of the movable handle 32 is in the unlocked state, the buckle teeth 311 on the movable buckle 31 will still bite the plug 33 without being affected, until the movable handle 32 continues to swing downward to the lower end to press and drive the buckle teeth 311 of the movable buckle 31 away from the plug 33, the lock of the movable buckle 31 can be released. This is equivalent to adding a layer of protection, avoiding the adverse effects caused by not locking the movable handle 32 or accidentally loosening the movable handle 32.

A pressing portion 320 is formed at the lower end of the movable handle 32 , and correspondingly, a blocking portion 310 is formed at the lower end of the movable buckle 31 .

A first pair of ears 11 is formed on the first seat body 1, and correspondingly, a second pair of ears 22 for inserting a plug 33 is formed on the second seat body 2; a first through hole 111 and a second through hole 112 are formed in the first pair of ears 11, a first rotating block 51 can be rotatably provided in the first through hole 111, and a second rotating block 52 can be rotatably provided in the second through hole 112; a first special-shaped hole 321 for matching with the first rotating block 51 is formed on the movable handle 32, and a second special-shaped hole 322 for matching with the second rotating block 52 is also formed on the movable handle 32; a first through hole 511 is formed on the first rotating block 51, and a second through hole 522 is formed on the second rotating block 52, a first rotating shaft 60 is inserted in the first through hole 511 and the second through hole 522, and the movable buckle 31 is sleeved on the first rotating shaft 60 and is located between the first rotating block 51 and the second rotating block 52.

The first through hole 511 on the first rotating block 51 is eccentrically arranged, and the second through hole 522 on the second rotating block 52 is also eccentrically arranged.

Specifically, a first avoidance surface 501 for matching with the first special-shaped hole 321 is formed on the first rotating block 51, and a second avoidance surface 502 for matching with the second special-shaped hole 322 is formed on the second rotating block 52. Since the first through hole 511 and the second through hole 512 are eccentrically arranged, the first rotating shaft 60 passing through the first rotating block 51 and the second rotating block 52 will produce an eccentric downward movement. When the movable handle 32 is rotated, the distance between the first rotating shaft 60 and the bolt 33 changes. When the movable handle 32 swings upward to the extreme position (when the self-locking component 40 is buckled with the buckling pin 34), the distance between the first rotating shaft 60 and the bolt 33 reaches the maximum, prompting the movable buckle 31 to buckle the bolt 33 downward; when the movable handle 32 swings downward until the pressing portion 320 presses against the blocking portion 310, the distance between the first rotating shaft 60 and the bolt 33 is the smallest, prompting the movable buckle 31 to loosen the bolt 33 upward to complete the unlocking. In addition, the first rotating block 51 and the second rotating block 52 are not fixed to the first rotating shaft 60, but can rotate separately. This is because the rotating shafts are different. The movable handle 32 rotates around the first rotating block 51 and the second rotating block 52, and the movable buckle 31 rotates around the first rotating shaft 60.

A torsion spring 70 is also sleeved on the first rotating shaft 60, and the torsion spring 70 acts between the first seat body 1 and the movable buckle 31, and makes the movable buckle 31 have a tendency to approach the plug 33; a spring groove 101 is formed on the first seat body 1, and one end of the torsion spring 70 is inserted into the spring groove 101, and the other end of the torsion spring 70 is in contact with the movable buckle 31.

The movable buckle 31 is formed with a screw hole 315, in which an adjusting screw 80 for reducing the gap between the buckle teeth 311 and the plug 33 is correspondingly screw-mounted; a round pin 90 for auxiliary adjustment is also inserted on one side of the movable buckle 31.

The upper end of the movable handle 32 is respectively provided with a first avoidance hole 301 and a second avoidance hole 302, and the self-locking component 40 includes a fastening piece 41 for matching and fastening with the fastening pin 34, a self-locking rod 42 inserted into the first avoidance hole 301 and the second avoidance hole 302, and a pressure spring 43 sleeved on the self-locking rod 42, wherein a pressing portion 420 is formed at one end of the self-locking rod 42, and the pressing portion 420 is abutted against the fastening piece 41 and partially exposed from the movable handle 32, the fastening piece 41 is sleeved on the self-locking rod 42 and is located between the first avoidance hole 301 and the second avoidance hole 302, and the pressure spring 43 acts on the fastening piece 41 and makes the fastening piece 41 tend to approach the fastening pin 34.

A vertical tube 20 is sleeved on the second base body 2 , and the fastening pin 34 passes through the side wall of the vertical tube 20 and is inserted into the second base body 2 .

A gap 10 is left on the first seat body 1 , and a first mounting hole 110 and a second mounting hole 120 are respectively formed on both sides of the gap 10 . A first pull bolt 210 is installed in the first mounting hole 110 , and a second pull bolt 220 is installed in the second mounting hole 120 .

One end of the plug 33 is formed with a strip edge section 331 for increasing friction. The strip edge section 331 is used to prevent the plug 33 from accidentally sliding, further strengthening the stability of the structure.

To sum up, in terms of structural implementation, the utility model adopts two locking structures, namely, a movable buckle 31 cooperates with a plug 33, and a movable handle 32 cooperates with a buckle pin 34 to form a fixing device 3, which can firmly lock the first seat body 1 and the second seat body 2. When locked, the movable handle can cover the periphery of the fixing device to protect the fixing device from erosion by the sun, rain, etc., effectively avoiding aging, rust, etc., and can ensure stability, effectively avoiding the loosening and slipping of the structure, and has a long service life and is durable. At the same time, the two locking structures form the fixing device 3, which greatly enhances the overall strength of the structure. After locking, there will be no shaking even during high-intensity riding, and the fastening is excellent. Specifically, a first avoidance surface 511 for matching with the first special-shaped hole 321 is formed on the first rotating block 51, and a second avoidance surface 512 for matching with the second special-shaped hole 322 is formed on the second rotating block 52. Since the first through hole 511 and the second through hole 512 are eccentrically arranged, the through holes 511 and 512 passing through the first rotating block 51 and the second rotating block 52 will produce downward eccentric movement. When the movable handle 32 is rotated, the distance between the first rotating shaft 60 and the bolt 33 changes. When the movable handle 32 swings upward to the extreme position (when the self-locking component 40 is buckled with the buckling pin 34), the distance between the first rotating shaft 60 and the bolt 33 reaches the maximum, prompting the movable buckle 31 to buckle the bolt 33 downward; when the movable handle 32 swings downward until the pressing portion 320 presses against the blocking portion 310, the distance between the first rotating shaft 60 and the bolt 33 is the smallest, prompting the movable buckle 31 to loosen the bolt 33 upward to complete the unlocking. In addition, the first rotating block 51 and the second rotating block 52 are not fixed to the first rotating shaft 60, but can rotate separately. This is because the rotating shafts are different. The movable handle 32 rotates around the first rotating block 51 and the second rotating block 52, and the movable buckle 31 rotates around the first rotating shaft 60.

The method of using the utility model is as follows: when unlocking; first, manually press the pressing part 420 so that the self-locking rod 42 pushes the fastening part 41 away from the fastening pin 34 (i.e., first unlock the self-locking component 40); further, manually move the movable handle 32 downward so that the pressing part 320 presses against the blocking part 310, and continue to apply force until the movable buckle 31 releases the plug 33 upward, thus completing the unlocking. When locking; first, manually fasten the buckle teeth 311 of the movable buckle 31 to the plug 33; further, manually move the movable handle 32 upward so that the self-locking component 40 is close to the fastening pin 34 (at this time, the fastening part 41 is driven back to its original position by the pressure spring 43); then press the upper end of the movable handle 32 so that the fastening part 41 in the self-locking component 40 is locked with the fastening pin 34, thus completing the locking.

Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made based on the structure, features and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.

Claims (9)

1. The utility model provides a folding locking structure with auto-lock, includes first pedestal (1), second pedestal (2) and is used for locking fixing device (3) of this first pedestal (1) and second pedestal (2), wherein, first pedestal (1) one side is articulated mutually with second pedestal (2), makes first pedestal (1) can do folding swing relative second pedestal (2), its characterized in that:

The fixing device (3) comprises a movable buckle (31) which can swing on the first seat body (1), a movable handle (32) which can swing on the first seat body (1) and is positioned at the periphery of the movable buckle (31), a plug (33) which is arranged on the second seat body (2) and a buckling nail (34) which is arranged on the second seat body (2);

The movable handle (32) is provided with a self-locking assembly (40) which can be matched with the buckling nails (34) for locking or unlocking;

The movable buckle (31) is provided with buckle teeth (311) which can be matched with the plug (33) for locking or unlocking.

2. A fold-locking mechanism with self-locking as claimed in claim 1, wherein: the lower end part of the movable handle (32) is provided with a pressing part (320), and the lower end part of the movable buckle (31) is provided with a blocking part (310).

3. A fold-locking mechanism with self-locking as claimed in claim 1, wherein: a first pair of lugs (11) are formed on the first seat body (1), and a second pair of lugs (22) for penetrating the plug (33) are formed on the second seat body (2) correspondingly; a first through hole (111) and a second through hole (112) are formed in the first pair of lugs (11), a first rotating block (51) is rotatably arranged in the first through hole (111), a second rotating block (52) is rotatably arranged in the second through hole (112), a first special-shaped hole (321) for matching with the first rotating block (51) is formed in the movable handle (32), and a second special-shaped hole (322) for matching with the second rotating block (52) is also formed in the movable handle (32); the first rotating block (51) is provided with a first perforation (511), the second rotating block (52) is provided with a second perforation (522), the first perforation (511) and the second perforation (522) are internally provided with a first rotating shaft (60), and the movable buckle (31) is sleeved on the first rotating shaft (60) and is positioned between the first rotating block (51) and the second rotating block (52).

4. A fold-locking structure with self-locking as claimed in claim 3, wherein: the first perforation (511) on the first rotating block (51) is arranged eccentrically, and the second perforation (522) on the second rotating block (52) is also arranged eccentrically.

5. A fold-locking structure with self-locking as claimed in claim 3, wherein: the first rotating shaft (60) is also sleeved with a torsion spring (70), and the torsion spring (70) acts between the first seat body (1) and the movable buckle (31) and enables the movable buckle (31) to have a trend of approaching to the plug bolt (33); a spring groove (101) is formed in the first seat body (1), one end of the torsion spring (70) is inserted into the spring groove (101), and the other end of the torsion spring (70) is abutted against the movable buckle (31).

6. A fold-locking mechanism with self-locking as claimed in claim 1, wherein: a screw hole (315) is formed on the movable buckle (31), and an adjusting screw (80) for reducing the gap between the buckle tooth (311) and the plug (33) is correspondingly and spirally arranged in the screw hole (315); one side of the movable buckle (31) is also inserted with a round pin (90) for auxiliary adjustment.

7. A fold-locking mechanism with self-locking as claimed in claim 1, wherein: the utility model provides a self-locking device for the bicycle, including movable handle (32) upper end has seted up respectively first hole (301) and second hole (302) of dodging, self-locking assembly (40) including be used for with lock pin (34) match lock pin's lock joint spare (41), wear to locate self-locking rod (42) and cover in first hole (301) and second dodge hole (302) are located pressure spring (43) on self-locking rod (42), wherein, self-locking rod (42) one end shaping has pressing part (420), should pressing part (420) with lock pin (41) looks up and partially expose in movable handle (32), lock pin (41) cover is located on self-locking rod (42) and be located between first hole (301) and second dodge hole (302), pressure spring (43) are acted on lock pin (41) and make lock pin (41) have the trend that is close to lock pin (34).

8. A fold-locking structure with self-locking according to any one of claims 1 to 7, characterized in that: a vertical pipe (20) is sleeved on the second seat body (2), and the fastening nails (34) penetrate through the side walls of the vertical pipe (20) and are inserted into the second seat body (2).

9. A fold-locking structure with self-locking according to any one of claims 1 to 7, characterized in that: a gap (10) is reserved on the first base body (1), a first mounting hole (110) and a second mounting hole (120) are formed in two sides of the gap (10), a first pull plug (210) is arranged in the first mounting hole (110), and a second pull plug (220) is arranged in the second mounting hole (120).