CN217519005U

CN217519005U - Quick-release connecting device capable of preventing accidental unlocking

Info

Publication number: CN217519005U
Application number: CN202221757089.2U
Authority: CN
Inventors: 王乃文; 高川川
Original assignee: Shenzhen Asia Pacific Aviation Technology Co ltd
Current assignee: Shenzhen Asia Pacific Aviation Technology Co ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-09-30
Anticipated expiration: 2032-07-07

Abstract

The utility model provides a quick-release connection device of unexpected unblock, it includes the connecting rod, the butt subassembly, the cam handle, the shell fragment, the butt subassembly cover is located on the connecting rod, the one end and the connecting rod of cam handle rotate to be connected, its other end is connected with the shell fragment, the other end of shell fragment can overlap the tip of locating the connecting rod and lock, a serial communication port, the cam handle includes cam portion, cam portion rotates with the connecting rod to be connected, be equipped with the locking plane in cam portion, when the tip that the connecting rod was located to the shell fragment cover was locked, the terminal surface laminating of locking plane and butt subassembly. The utility model discloses a set up the locking plane on cam handle, utilize the locking plane to avoid the unexpected rotation of cam handle and carry out the unblock to security when locking can be improved greatly, the unexpected unblock of device is avoided. The utility model discloses a quick-release connection device of unexpected unblock has simple structure, the practical, the high characteristics of security of function, and it has very strong practicality, should widely popularize.

Description

Quick-release connecting device capable of preventing accidental unlocking

[ technical field ] A method for producing a semiconductor device

The utility model relates to the field of machinary, in particular to quick-release connecting device of unexpected unblock of preventing.

[ background ] A method for producing a semiconductor device

The comprehensive externally hung beam system is an important component of the helicopter, is respectively arranged on two sides of a helicopter body, and is mainly used for hanging airborne equipment such as missile launcher, machine gun pod and the like. With the rapid development of helicopters, the stay bars of the outer hanging beams are required to have the functions of rapid disassembly and assembly.

Therefore, the applicant has developed a quick-release connecting device capable of being quickly disassembled and assembled, which realizes quick-release and disassembly through a cam structure and an abutting component, such as the utility model patent of "tension bolt assembly" with the application number of 201510493303.6. The quick-release connecting device is convenient to operate, can be repeatedly disassembled and assembled, and can meet the use requirements. However, in a complicated use environment, the cam lever may be accidentally rotated to unlock the lock.

[ Utility model ] A method for manufacturing a semiconductor device

The utility model aims to solve the above problem and provide a quick-release connecting device of unexpected unblock of prevention that can improve security.

In order to solve the problem, the utility model provides a quick-release connection device of unexpected unblock, it includes connecting rod, butt subassembly, cam handle, shell fragment, butt subassembly cover is located on the connecting rod, cam handle's one end with the connecting rod rotates to be connected, its other end with the shell fragment is connected, the other end of shell fragment can overlap and locate the tip of connecting rod is and lock, a serial communication port, cam handle includes cam portion, cam portion with the connecting rod rotates to be connected be equipped with the locking plane in the cam portion, work as the shell fragment cover is located when locking the tip of connecting rod, the locking plane with the terminal surface laminating of butt subassembly.

Further, the stopper plane is located on a side of the cam portion farthest from the center of rotation of the cam portion.

Further, the stopper plane (311) is formed by extending an outer wall portion of an end of the circumferential outer wall of the cam portion (31) farthest from the rotation center thereof in a circumferential tangential direction of the cam portion (31).

Further, the cam handle includes a connecting portion integrally formed with the cam portion, the connecting portion being formed by one end of the cam portion provided with a stopper plane extending outward in a tangential direction of the cam portion.

Furthermore, a first rotating shaft hole is formed in the cam portion, a second rotating shaft hole is formed in the connecting rod, and rotating shafts are arranged at the first rotating shaft hole and the second rotating shaft hole, so that the cam handle and the connecting rod are in rotating connection.

Furthermore, the rotating shaft comprises a hexagon head bolt, a hexagon groove type flat nut and a cotter pin, a pin hole which is through along the radial direction is formed in the free end of the hexagon head bolt, the free end of the hexagon head bolt penetrates through the first rotating shaft hole and the second rotating shaft hole and is located on the other side of the cam portion, the hexagon groove type flat nut is connected to the free end of the hexagon head bolt in a threaded mode, and the cotter pin is inserted in the hexagon groove type flat nut and the pin hole.

The beneficial contributions of the utility model reside in that, it has effectively solved above-mentioned problem. The utility model discloses a set up the locking plane on cam handle, utilize the locking plane to avoid the unexpected rotation of cam handle and carry out the unblock to security when locking can be improved greatly, the unexpected unblock of device is avoided. The utility model discloses a quick-release connection device of unexpected unblock has simple structure, the practical, the high characteristics of security of function, and it has very strong practicality, should widely popularize.

[ description of the drawings ]

Fig. 1 is a schematic diagram of a locked state.

Fig. 2 is a schematic view of the state when opened.

Fig. 3 is an exploded view of the structure.

The attached drawings are as follows: the connecting rod 10, the second rotating shaft hole 11, the abutting assembly 20, the outer taper sleeve 21, the inner taper sleeve 22, the limiting block 23, the cam handle 30, the cam part 31, the stop plane 311, the first rotating shaft hole 312, the connecting part 32, the elastic sheet 40, the insertion hole 41, the hexagonal head bolt 51, the pin hole 511, the hexagonal groove type flat nut 52 and the split pin 53.

[ detailed description ] embodiments

The following examples are further to explain and supplement the present invention, and do not constitute any limitation to the present invention.

As shown in fig. 1 to 3, the quick release connector assembly of the present invention comprises a connecting rod 10, an abutting assembly 20, a cam handle 30 and a spring plate 40.

As shown in fig. 1 to 3, the connecting rod 10 is a long rod, one end of which is rotatably connected to the cam handle 30, and the other end of which is connected to the elastic piece 40.

The abutting assembly 20 is sleeved on the connecting rod 10 and can abut against the cam handle 30 to tightly abut against the cam handle 30. When the cam handle 30 is rotated to the locked position, the end face of the abutment assembly 20 abuts the cam handle 30. When the cam handle 30 is rotated to the unlocked (i.e., open) state, the end face of the abutment assembly 20 is spaced a distance from the cam handle 30.

The structure of the abutting assembly 20 is not limited, and when the cam handle 30 is rotated, the abutting assembly 20 can abut against the cam handle 30 to stop the cam handle 30 at the current position.

In this embodiment, the abutment assembly 20 is an expansion assembly located between the cam handle 30 and the free end of the connecting rod 10. It can receive the pressure from the axial direction to generate the deformation in the radial direction, so that the outward expansion can play the role of expansion. Further, when the expansion assembly expands outward, the expansion assembly may also contract inward to hug the connecting rod 10. The expansion component can be a known expansion component, for example, it can include outer taper sleeve 21, inner taper sleeve 22, and stopper 23 that are arranged at intervals, the outer taper sleeve 21 and inner taper sleeve 22 are matched by a taper surface, and the outer taper sleeve 21 and inner taper sleeve 22 are both provided with an opening that runs through in the axial direction, so that the outer taper sleeve 21 and inner taper sleeve 22 can be squeezed each other to generate radial deformation, so that the outer taper sleeve 21 can be expanded outwards to expand the object to be connected, and the inner taper sleeve 22 is contracted inwards to hold the connecting rod 10; the stop block 23 is located at the end of the expansion assembly, with one side surface abutting the end of the inner/outer cone 22/21 and the other side surface facing the cam handle 30 and abutting the cam handle 30. In particular embodiments, the expansion assembly may include, but is not limited to, the outer taper sleeve 21, the inner taper sleeve 22, and the stop block 23 described above.

In some embodiments, the abutment assembly 20 may comprise only a stop block sleeved on the connecting rod 10, the stop block being constrained in its axial displacement by the connecting rod 10. In some embodiments, the abutment assembly 20 may include a stop block sleeved on the connecting rod 10, a belleville spring, the stop block being constrained by the connecting rod 10 in the axial direction, the belleville spring being located between the stop block and the cam handle to provide the cam handle with a pre-tightening tension in the locked state. In some embodiments, the abutment assembly 20 may be formed by a step structure provided on the connecting rod 10.

The cam handle 30 is used for operation to realize quick detachment and installation, one end of the cam handle is rotatably connected with the connecting rod 10, and the other end of the cam handle is connected with the elastic sheet 40. One end of the elastic sheet 40 is fixedly connected with the cam handle 30, and the other end thereof is provided with a jack 41 which can be sleeved on the free end of the connecting rod 10 for locking. The free end structure of the connecting rod 10 connected with the elastic sheet 40 can be arranged according to the requirement. For example, in some embodiments, a boss portion integrally formed with the end of the connecting rod 10 may be provided, and the elastic piece 40 may be fitted on the boss portion of the connecting rod 10 through the insertion hole 41 thereof. In some embodiments, an end cap structure may be fixedly connected or screwed to the end of the connecting rod 10, and the elastic sheet 40 may be sleeved on the end cap structure of the end of the connecting rod 10 through the insertion hole 41 thereof.

When the elastic piece 40 is sleeved on the free end of the connecting rod 10, the cam handle 30, the elastic piece 40 and the connecting rod 10 form a closed mouth-shaped structure or a mouth-shaped structure similar to the mouth-shaped structure, which is a locking state. When the free end of the elastic sheet 40 is not hung on the free end of the connecting rod 10, the connecting rod is in an open state, namely an unlocked state. By rotating the cam lever 30, the locked state and the unlocked state can be switched.

In this embodiment, when the cam handle 30 is rotated to lock, the cam handle 30 may press the abutment assembly 20 to radially deform the abutment assembly 20 so as to form an interference fit with the mounting hole of the object to be connected. When the cam handle 30 is rotated to unlock, the cam handle 30 gradually separates from the abutment assembly 20 so that the abutment assembly 20 can gradually relax and lose the expansion force, and the connecting rod 10 on which the abutment assembly 20 is mounted can be taken out of the mounting hole.

The cam handle 30 includes a cam portion 31 and a connecting portion 32. The cam portion 31 is integrally formed with the connecting portion 32. The cam portion 31 is rotatably connected to the connecting rod 10, and the connecting portion 32 is used for connecting to the elastic sheet 40.

The rotation center of the cam portion 31 is eccentrically disposed so that the cam portion 31 has different distances from the rotation center thereof at different circumferential outer walls. When the outer wall of the end of the cam portion 31 farthest from the rotation center is rotated to contact the end face of the contact assembly 20, the spring piece 40 is hooked on the free end of the connecting rod 10 and locked. When the outer wall of the end of the cam portion 31 farthest from the rotation center is rotated to the end far away from the abutment member 20, the free end of the resilient piece 40 is separated from the free end of the connecting rod 10 to unlock.

In this embodiment, when the outer wall of the end of the cam portion 31 farthest from the rotation center on the circumference is rotated to contact the end surface of the abutting unit 20, the cam portion 31 may press the expansion unit to deform the expansion unit in the radial direction, and at the same time, the spring piece 40 may be hooked to the free end of the connecting rod 10 to lock the free end. When the outer wall of the end of the cam portion 31 farthest from the rotation center on the circumference is rotated to the end far away from the abutment component 20, the pressing force applied to the expansion component is gradually reduced until the pressing force disappears, the expansion component can gradually relax and lose the expansion force, and meanwhile, the free end of the elastic sheet 40 is separated from the free end of the connecting rod 10 to unlock.

When the entire device is in the locked state, the outer wall of the end of the cam portion 31 farthest from the rotation center abuts against the end face of the abutment member 20, and at this time, the cam portion 31 is also subjected to a certain stress. In the event of an accidental collision, the cam handle 30 may be rotated to unlock the lock. In order to avoid accidental unlocking, the cam portion 31 is provided with a stop plane 311, and when the elastic sheet 40 is sleeved on the free end of the connecting rod 10 and is in a locked state, the stop plane 311 is attached to the end surface of the abutting assembly 20. The stopper flat surface 311 is located on the side of the circumference of the cam portion 31 farthest from the rotation center thereof, and is formed by extending the outer wall surface portion of the circumference of the cam portion 31 farthest from the rotation center thereof in the circumferential tangential direction of the cam portion 31. By arranging the stop plane 311, the balance of the cam handle 30 in the locked state can be improved, so that the cam handle is not easy to rotate due to reasons such as external collision in the locked state, accidental unlocking is avoided to a certain extent, and the safety of a product is improved.

The stop plane 311 is planar, and the size of the area thereof can be set as required. In this embodiment, the connecting portion 32 is formed by extending the end of the cam portion 31, which is provided with the stop plane 311, outward in the tangential direction of the cam portion 31, so that the connecting portion 32 and the cam portion 31 are planar on one side.

Further, when the cam portion 31 comes into contact with the end surface of the abutment assembly 20, the cam portion 31 comes into contact through the entire plane, thereby increasing the contact area as much as possible to improve the stopping effect to avoid accidental unlocking. Compared with the conventional cam structure, the cam handle 30 provided with the stop plane 311 can greatly improve the structural safety and avoid accidental unlocking.

Furthermore, to improve the safety of the construction, the rotational connection between the cam portion 31 and the connecting rod 10 is also provided with a safety construction.

Specifically, a first rotating shaft hole 312 is formed in the cam portion 31, a second rotating shaft hole 11 is formed in the connecting rod 10, and rotating shafts are installed in the first rotating shaft hole 312 and the second rotating shaft hole 11, so that the cam handle 30 is rotatably connected to the connecting rod 10. The rotating shaft includes a hexagonal head bolt 51, a hexagonal groove-shaped flat nut 52, and a cotter pin 53.

The hexagon head bolt 51 is connected between the connecting rod 10 and the cam portion 31, the bolt head thereof is positioned at one side of the connecting rod 10/the cam portion 31, and the free end thereof passes through the first rotating shaft hole 312 and the second rotating shaft hole 11 and is positioned at the other side of the connecting rod 10/the cam portion 31. A radially penetrating pin hole 511 is provided at a free end of the hexagonal head bolt 51.

The hexagonal groove-shaped flat nut 52 is screwed to the free end of the hexagonal head bolt 51, and prevents the hexagonal head bolt 51 from falling off from the first spindle hole 312 and the second spindle hole 11. The cotter 53 is inserted into the hexagonal groove-shaped flat nut 52 and the pin hole 511, and can prevent the hexagonal groove-shaped flat nut 52 from falling off, thereby further enhancing the structural safety and avoiding accidents such as falling off.

While the invention has been described with reference to the above embodiments, the scope of the invention is not limited thereto, and the above components may be replaced with similar or equivalent elements known to those skilled in the art without departing from the concept of the invention.

Claims

1. A quick-release connecting device capable of preventing accidental unlocking comprises a connecting rod (10), a cam handle (30), an abutting component (20) capable of being squeezed by the cam handle (30) and an elastic sheet (40), the abutting component (20) is sleeved on the connecting rod (10), one end of the cam handle (30) is rotatably connected with the connecting rod (10), the other end of the elastic sheet (40) is connected with the elastic sheet, the other end of the elastic sheet (40) can be sleeved on the end part of the connecting rod (10) for locking, characterized in that the cam handle (30) comprises a cam part (31), the cam part (31) is rotationally connected with the connecting rod (10), a stop plane (311) is arranged on the cam part (31), when the spring sheet (40) is sleeved on the end part of the connecting rod (10) for locking, the stop plane (311) is attached to the end face of the abutting assembly (20).

2. The quick-release coupling device which prevents accidental unlocking according to claim 1, characterized in that said stop plane (311) is located on the side of said cam portion (31) which is farthest from the center of rotation of said cam portion (31).

3. The quick-release coupling device against accidental unlocking according to claim 1, wherein the stop plane (311) is formed by an outer wall portion of the circumferential outer wall of the cam portion (31) at the end farthest from the center of rotation thereof extending in the circumferential tangential direction of the cam portion (31).

4. The quick-release coupling device which prevents accidental unlocking according to claim 1, characterized in that the cam handle (30) comprises a connecting portion (32), the connecting portion (32) being integrally formed with the cam portion (31), the connecting portion (32) being formed by one end of the cam portion (31) provided with a stop plane (311) extending outward in a tangential direction of the cam portion (31).

5. The quick release coupling device with accidental unlocking prevention according to claim 1, wherein a first rotating shaft hole (312) is provided on the cam portion (31), a second rotating shaft hole (11) is provided on the connecting rod (10), and rotating shafts are provided at the first rotating shaft hole (312) and the second rotating shaft hole (11) to rotatably connect the cam handle (30) and the connecting rod (10).

6. The quick release coupling device against accidental unlocking according to claim 5, wherein the rotating shaft includes a hexagon head bolt (51), a hexagon groove type flat nut (52) and a cotter pin (53), a pin hole (511) penetrating in the radial direction is provided at the free end of the hexagon head bolt (51), the free end of the hexagon head bolt (51) passes through the first rotating shaft hole (312), the second rotating shaft hole (11) and is located at the other side of the cam portion (31), the hexagon groove type flat nut (52) is screwed to the free end of the hexagon head bolt (51), and the cotter pin (53) is inserted into the hexagon groove type flat nut (52) and the pin hole (511).