CN214729394U - Novel double-safety self-locking mechanism - Google Patents

Abstract

The utility model discloses a novel two safe self-locking mechanism, include: top connection, lower clutch and locking Assembly, top connection and articulated the connecting of lower clutch, locking Assembly is used for locking top connection and lower clutch, and locking Assembly includes: the handle, the locking piece, the first hook component and the second hook component; the handle is provided with an installation position, and the locking piece is arranged in the installation position; the first hook assembly includes: the first hook is arranged in the mounting groove in the side face of the handle, the spring is arranged at the bottom of the mounting groove, and the bottom end of the first hook is pressed against the spring; the second hook assembly includes: the second hook is sleeved on the second rotating shaft and clamped on the handle; the second rotating shaft is fixed on the lower joint, and the hook end of the second hook is hooked on the upper joint; the second torsion spring is sleeved on the second rotating shaft; the locking part comprises a locking shaft, a clamping groove is formed in the locking shaft, and the hook end of the first hook is meshed in the first clamping groove.

Description

Novel double-safety self-locking mechanism

Technical Field

The utility model relates to a folding joint technical field especially relates to a novel two safe self-locking mechanism.

Background

The folding bicycle or the electric bicycle is convenient to fold, occupies small space after being folded, and is popular. Folding bicycle or electric motor car need utilize folding joint to fold and lock when folding. The self-locking mechanism in the existing folding joint generally adopts a clamping accessory to lock the first joint and the second joint, and then the head of the adjusting shaft is buckled in the clamping groove to realize locking. It is in practical application, and locking intensity is relatively poor, often appears the regulating spindle from the not hard up condition of roll-off in the screens recess, has the potential safety hazard, and because of locking performance is relatively poor to be not applicable to climbing bicycle or electric bicycle. The utility model discloses improve to the patent application that application number is 2021207536509, realized self-locking mechanism's two safe settings.

SUMMERY OF THE UTILITY MODEL

For solving above technical problem to last the improvement, realize safer self-locking mechanism, the utility model provides a novel two safe self-locking mechanism. The technical scheme of the utility model as follows: the utility model provides a novel two safe self-locking mechanism, include: top connection, lower clutch and locking Assembly, the top connection with the lower clutch is articulated to be connected, locking Assembly is used for locking the top connection with the lower clutch, locking Assembly includes: the handle, a locking part rotationally connected with the handle, a first hook assembly matched with the locking part and the handle, and a second hook assembly matched with the upper joint and the lower joint; the handle is provided with an installation position, and the locking piece is arranged in the installation position;

the first hook assembly includes: the first hook is mounted in a mounting groove in the side face of the handle, the spring is arranged at the bottom of the mounting groove, and the bottom end of the first hook is pressed against the spring;

the second hook assembly includes: the second hook is sleeved on the second rotating shaft and clamped on the handle; the second rotating shaft is fixed on the lower joint, and the hook end of the second hook is hooked on the upper joint; the second torsion spring is sleeved on the rotating shaft, one end of the second torsion spring abuts against the lower joint, and the other end of the second torsion spring abuts against the upper joint;

the locking assembly includes: the locking mechanism comprises a locking shaft and a torsion spring assembly, wherein one end of the torsion spring assembly is fixed on the locking shaft, and the other end of the torsion spring assembly is connected with the upper joint; the locking shaft is provided with a clamping groove, and the hook end of the first hook is meshed in the first clamping groove.

Furthermore, a second clamping groove is formed in the upper connector, and the hook end of the second hook is hooked in the second clamping groove.

Furthermore, a rotating handle is further arranged on the second hook, a groove is formed in the top of the handle corresponding to the rotating handle, and the rotating handle is matched in the groove.

Furthermore, the bottom end of the first hook extends outwards and downwards to form a blocking piece, and the blocking piece abuts against the outer side of the mounting groove; a fixing piece is arranged above the blocking piece and fixed on the side surface of the handle, and the lower end of the fixing piece is abutted against the blocking piece.

Furthermore, the locking piece further comprises a ball head screw and a first torsion spring, the ball head screw is fixed on the locking shaft, the handle is provided with a ball head seat, and the ball head end of the ball head screw is matched in the ball head seat; the first torsion spring is sleeved on the locking shaft and provided with a transverse first end and a longitudinal second end, the first end is connected to the ball head screw, and the second end is connected to the upper joint.

Furthermore, a through hole is formed in the end portion of the handle, and a first rotating shaft enables the handle to be hinged to the lower joint through the through hole.

According to the above technical scheme, the utility model discloses a novel two safe self-locking mechanism through set up the second couple subassembly on the lower clutch, the couple end of locking back second couple is colluded on last joint, realizes the second floor locking guarantee to the top and bottom joint, prevents the condition that upper and lower joint was opened in the twinkling of an eye automatically under the condition that the handle auto-lock became invalid, has further eliminated the potential safety hazard that self-locking mechanism pine takes off.

Drawings

Fig. 1 is a schematic perspective view of the novel double-safety self-locking mechanism of the present invention, which does not include the upper and lower joints.

Fig. 2 is a schematic cross-sectional view of the novel dual-safety self-locking mechanism of the present invention.

Fig. 3 is a schematic perspective view of the novel double-safety self-locking mechanism with the upper and lower joints disassembled.

Fig. 4 is a schematic cross-sectional view of the first hook assembly of the dual-safety self-locking mechanism of the present invention.

Reference numerals:

10-top sub 20-bottom sub 30-locking assembly

33-handle 34-locking member 31-first hook assembly

32-second hook component 33-handle 311-first hook

312-spring 332-mounting groove 341-locking shaft

313-baffle 314-anchor 321-secondary hook

322-second rotating shaft 323-second torsion spring 3211-rotating handle

331-groove 11-second slot 342-ball head screw

343-first torsion spring 35-first rotating shaft 344-first clamping groove

13-third axis of rotation 21-rotating part

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 4, the present invention provides a novel dual-safety self-locking mechanism, which includes: top connection 10, lower clutch 20 and locking Assembly 30, top connection 10 with the articulated connection in lower clutch 20 one side is specific be equipped with a third pivot 13 on the top connection, the correspondence is equipped with a rotation portion 21 on the lower clutch 20, rotation portion rotationally connect in on the third pivot 13, realize the rotation between top connection 10 and lower clutch 20 and connect. The locking assembly 30 is installed between the opposite sides of the upper joint 10 and the lower joint, and the locking assembly 30 is used for locking the upper joint 10 and the lower joint 20. Specifically, the locking assembly 30 includes: the handle 33, a locking member 34 rotatably connected with the handle 33, a first hooking component 31 matched with the locking member 34 and the handle 33, and a second hooking component 32 matched with the upper connector 10 and the lower connector 20. The end of the handle 33 is provided with a through hole, and a first rotating shaft 35 is used for hinging the handle 33 on the lower joint 20 through the through hole. The handle 33 is provided with an installation position, and the locking piece 34 is arranged in the installation position. Locking member 34 realizes the locking to self-locking mechanism (be top connection 10 and lower clutch 20), first couple subassembly 31 with second couple subassembly 32 guarantees the not pine after self-locking mechanism locks takes off, and two safety settings greatly reduced self-locking mechanism's pine take off the risk.

As shown in fig. 1 and 4, the first hooking member 31 includes: the handle comprises a first hook 311 and a spring 312, wherein the first hook 311 is installed in an installation groove 332 on the side surface of the handle 33, the spring 312 is arranged at the bottom of the installation groove 332, the first hook 311 is provided with a horizontal bottom end, and the bottom end is abutted against the spring 312. A first locking groove 344 is formed in the locking shaft 341 of the locking member 34, and a hook end of the first hook 311 is clamped in the first locking groove 344. When the locking assembly 30 of the self-locking mechanism is locked, the first hook 311 is stably engaged with the locking shaft 341 under the elastic action of the spring 312, the first hook 311 is in stable surface contact with the locking shaft 341, and is matched with the locking assembly 30, so that the locking strength of the locking assembly 30 is greatly enhanced, and the potential safety hazard of loosening of the self-locking mechanism is eliminated. Specifically, as shown in fig. 1, the bottom end of the first hook 311 extends outward and downward to form a blocking member 313, and the blocking member 313 abuts against the outer side of the mounting groove 332; the first hook 311 and the blocking member 313 are integrally formed to form a ladder-shaped structure, and the horizontal bottom end of the first hook 311 is a step. The stop member 313 forms an outer wall of the mounting slot 332 and together acts as a stop for the spring 312. A fixing plate 314 is arranged above the blocking part 313, the fixing plate 314 is fixed on the side surface of the handle 33 through screws, the lower end of the fixing plate 314 abuts against the blocking part 313 to limit the blocking part 313 and the first hook 311, the first hook 311 and the locking shaft 341 are ensured to be always in an engaged state, and the first layer locking of the upper joint and the lower joint is formed. And the detachable design of stationary blade 314, the convenience is changed or is adjusted spring 312, easy operation is convenient.

Specifically, as shown in fig. 1 to 3, the second hook assembly 32 includes: the second hook 321, the second rotating shaft 322 and the second torsion spring 323, the second hook 321 includes a rotating handle 3211, a groove 331 is formed at the top of the handle 33 corresponding to the rotating handle 3211, and the rotating handle 3211 is fitted in the groove 331. A through hole is formed in the second hook 321, and the second hook 321 is sleeved on the second rotating shaft 322 through the through hole. The second rotating shaft 322 is fixed to the lower joint 20, and a hook end of the second hook 321 is hooked on the upper joint 10. The second torsion spring 323 is sleeved on the second rotating shaft 322, one end of the second torsion spring 323 abuts against the lower joint 20, and the other end abuts against the upper joint 10. The upper joint 10 is provided with a second clamping groove 11, and the hook end of the second hook 321 is hooked in the second clamping groove 11. When the handle 33 rotates counterclockwise and is pressed down, the rotating handle 3211 of the second hook 321 rotates along with the handle, and under the action of the second torsion spring 323, the hook end of the second hook 321 elastically escapes from the second slot 11, and the upper and lower joints are opened. When the handle 33 rotates clockwise and lifts up, the rotating handle 3211 of the second hook 321 rotates along with the handle, and under the action of the second torsion spring 323, the hook end of the second hook 321 is clamped into the second clamping groove 11, so as to perform second-layer locking on the upper joint and the lower joint.

Turning now in detail to retaining member 34, and more particularly, as shown in FIG. 1, retaining member 34 includes: the locking device comprises a locking shaft 341, a ball screw 342 and a first torsion spring 343, wherein the ball screw 342 is fixed on the locking shaft 341, a ball seat (not marked) is arranged on the handle 33, and the ball end of the ball screw 342 is adapted in the ball seat. The first torsion spring 343 is sleeved on the locking shaft 341, the first torsion spring 343 has a first transverse end and a second longitudinal end, the first end is connected to the ball screw 342, and the second end is inserted and fixed to the upper joint 10. The handle 33 is rotated, under the action of the first torsion spring 343, the ball end of the ball screw 342 enters the ball seat to lock the first joint 10 and the second joint 20, at this time, the first hook 311 is engaged with the locking shaft 341, and when the ball end of the ball screw 342 accidentally slides out of the ball seat, the first hook 311 and the locking shaft 341 are still in an engaged state under the action of the elastic member. If the first hook 311 is released from the locking shaft 341 due to an accident, the second hook 321 locks the first joint 10 and the second joint 20 under the action of the second torsion spring 323, thereby realizing a self-locking mechanism and a double safety locking.

To sum up, the utility model provides a novel two safe self-locking mechanism, it has realized the two safety protection to the self-locking mechanism locking through increasing the second couple subassembly on current structure basis, greatly reduced the risk that self-locking mechanism pine takes off, has strengthened the security performance, is worth wideling popularize the use.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (6)

1. The utility model provides a novel two safe self-locking mechanism which characterized in that includes: top connection, lower clutch and locking Assembly, the top connection with the lower clutch is articulated to be connected, locking Assembly is used for locking the top connection with the lower clutch, locking Assembly includes: the handle, the locking piece, the first hook component and the second hook component; the handle is provided with an installation position, and the locking piece is arranged in the installation position;

the first hook assembly includes: the first hook is mounted in a mounting groove in the side face of the handle, the spring is arranged at the bottom of the mounting groove, and the bottom end of the first hook is pressed against the spring;

the second hook assembly includes: the second hook is sleeved on the second rotating shaft and clamped on the handle; the second rotating shaft is fixed on the lower joint, and the hook end of the second hook is hooked on the upper joint; the second torsion spring is sleeved on the second rotating shaft, one end of the second torsion spring abuts against the lower joint, and the other end of the second torsion spring abuts against the upper joint;

the retaining member includes a locking shaft, the epaxial first draw-in groove that is equipped with of locking, the couple end interlock of first couple in the first draw-in groove.

2. The novel double-safety self-locking mechanism according to claim 1, wherein a second clamping groove is formed in the upper joint, and a hook end of the second hook is hooked in the second clamping groove.

3. The novel double-safety self-locking mechanism according to claim 1 or 2, wherein the second hook is further provided with a rotating handle, the top of the handle is provided with a groove corresponding to the rotating handle, and the rotating handle is adapted to the groove.

4. The novel double-safety self-locking mechanism as claimed in claim 1, wherein the bottom end of the first hook extends outwards and downwards to form a blocking part, and the blocking part abuts against the outer side of the mounting groove; a fixing piece is arranged above the blocking piece and fixed on the side surface of the handle, and the lower end of the fixing piece is abutted against the blocking piece.

5. The novel double-safety self-locking mechanism according to claim 1, wherein the locking member further comprises a ball screw and a first torsion spring, the ball screw is fixed on the locking shaft, the handle is provided with a ball seat, and a ball end of the ball screw is fitted in the ball seat; the first torsion spring is sleeved on the locking shaft and provided with a transverse first end and a longitudinal second end, the first end is connected to the ball head screw, and the second end is connected to the upper joint.

6. The novel double-safety self-locking mechanism according to claim 1, wherein a through hole is formed in an end portion of the handle, and a first rotating shaft is used for hinging the handle to the lower joint through the through hole.

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