Rotary twist lock

Abstract

The invention discloses a rotary twist lock which comprises an upper lock body and a lower lock body, the upper lock body comprises a rotary unlocking piece, a main body, a locking pin, an elastic reset piece and a torsional spring, a containing cavity and sliding grooves are formed in the main body, and the sliding grooves are symmetrically formed in the two opposite sides of the containing cavity; the locking pins are arranged in the sliding grooves in a sliding mode respectively, and the elastic reset pieces are arranged between the locking pins and the body. The lower lock body is provided with a locking rod, and the top of the locking rod is provided with a lock cap; when the locking rod is inserted into the accommodating cavity, one end of the locking pin is clamped on the bottom surface of the lock cap; the surface of the main body is provided with a sliding hole corresponding to the sliding groove, the locking pin is provided with a sliding shaft in the direction towards the rotary unlocking piece, the bottom surface of the rotary unlocking piece is provided with an arc-shaped groove corresponding to the sliding shaft, and the sliding shaft penetrates through the sliding hole and is inserted into the arc-shaped groove; the torsional spring is arranged between the main body and the rotary unlocking piece. Locking or unlocking is conducted in a rotating mode, durability is high, accidental unlocking is effectively prevented, and safety is high.

Description

Technical Field

[0001] The invention relates to a luggage lock, in particular to a rotary twist lock. Background Art

[0002] The luggage lock is a device used to fasten luggage, which is generally composed of a lock button, a lock seat, a spring and other components. By pressing the lock button, the internal mechanism of the lock seat is triggered to achieve connection and unlocking, so as to achieve the purpose of closing and opening the luggage. Therefore, it is very important to ensure that the luggage lock can quickly open and close the luggage. However, after repeated use, the stability of the connection of traditional luggage locks decreases. When the lock button is pressed, it cannot be locked. It requires greater force to pull, which easily leads to damage to the lock structure. At the same time, due to the decline in the performance of the lock and the internal spring, the luggage lock will automatically unlock under the influence of non-human subjective factors such as vibration or shaking, resulting in the failure of the locking function of the lock. Summary of the invention

[0003] The object of the present invention is to provide a rotary twist lock which can be locked or unlocked by rotating, has high durability, effectively prevents accidental unlocking and has high safety.

[0004] In order to achieve the above-mentioned purpose, the rotary twist lock provided by the present invention comprises an upper lock body and a lower lock body, the upper lock body comprises a rotary release member, a main body, a locking pin, an elastic reset member and a torsion spring, the main body is provided with a receiving cavity and a sliding groove, the sliding grooves are symmetrically arranged at two opposite sides of the receiving cavity; the locking pins are respectively slidably arranged in each of the sliding grooves, the elastic reset member is arranged between the locking pin and the main body, so that the locking pin extends into the receiving cavity; the lower lock body is provided with a locking rod on one side facing the upper lock body, and the top of the locking rod is provided with a locking cap with a diameter larger than itself; when the locking rod is inserted into the receiving cavity One end of the locking pin is stuck on the bottom surface of the lock cap to prevent the lock cap from exiting the accommodating cavity; the surface of the main body is provided with a sliding hole corresponding to the sliding groove, and the locking pin is provided with a sliding shaft in the direction of the rotation release member, and the bottom surface of the rotation release member is provided with an arc groove corresponding to the sliding shaft, and the sliding shaft passes through the sliding hole and is inserted into the arc groove; when the rotation release member rotates relative to the main body, the locking pin is driven to slide out of the accommodating cavity through the arc groove to release the lock cap and leave the accommodating cavity; the torsion spring is arranged between the main body and the rotation release member to reset the rotation release lock.

[0005] Compared with the prior art, the present invention provides a rotary release member, a main body and a locking pin on the upper lock body, and the locking pin is slidably arranged in the sliding groove of the main body, and an arc groove is provided on the rotary release member, so that the sliding shaft of the locking pin extends into the arc groove, so that the rotary release member can be used to rotate relative to the main body to drive the locking pin to slide in the sliding groove, and then the locking pin can be extended into or withdrawn from the accommodating cavity of the main body. Therefore, by providing a lower lock body, the lock cap of the lower lock body is used to extend into the accommodating cavity, so that the locking pin can be stuck with the lock cap when extending into the accommodating cavity, and the lock cap can be withdrawn after withdrawing from the accommodating cavity, so that the lower lock body and the upper lock body can be locked or released, which is very convenient to use. Moreover, a variety of designs can be achieved by rotating, making the appearance of the luggage lock buckle more fashionable and personalized. In addition, the locking or releasing method of rotation has a higher connection stability, and frequent opening and closing will not cause damage to the lock body, and has extremely high durability and reliability, and a long service life. Moreover, the dual elastic force of elastic reset parts and torsion springs can effectively prevent accidental unlocking, making it safer to use.

[0006] Preferably, the rotary release member includes a knob and a rotation axis, the rotation axis is built into the accommodating cavity and has an accommodating hole for the lock cap to pass through and enter the accommodating cavity, the knob is arranged outside the main body, and the rotation axis is fixedly connected to the knob. By dividing the rotary release member into a knob and a rotation axis, the rotary release member can be rotated externally and connected to the main body for relative movement, and the assembly is more convenient and quick.

[0007] Specifically, the rotation axis is provided with an annular groove around the outer circumference of the accommodating hole, and the torsion spring is accommodated in the annular groove with one end abutting against the rotation axis and the other end abutting against the main body. By using the annular groove to accommodate the torsion spring, the torsion spring can be limited to prevent the torsion spring from being offset and causing failure.

[0008] Specifically, through holes are provided on opposite sides of the rotation axis, and arc-shaped sliding grooves corresponding to the through holes are provided on the main body, and screws are provided in the through holes, and the screws pass through the through holes and the arc-shaped sliding grooves and are fixedly connected to the knob. In this way, the rotation axis can be built into the main body and can be fixedly connected to the knob, so that it rotates with the knob.

[0009] Specifically, an opening communicating with the accommodating hole and the outer side of the rotating shaft is formed on one side of the rotating shaft, and the end of the torsion spring is extended out of the opening.

[0010] Specifically, a fan-shaped sliding area corresponding to the locking pin is recessed on one side of the rotation axis toward the locking pin, and a boss is formed between the two fan-shaped sliding areas. By providing the fan-shaped sliding area, there will be no motion interference between the rotation axis and the locking pin, thereby making the structure more compact and reasonable, and smaller in size.

[0011] Preferably, the main body includes an upper shell, a bottom cover and a bottom plate, and the bottom cover and the bottom plate are both arranged on the bottom surface of the upper shell.

[0012] Specifically, the upper shell has an upper flange extending outward from the edges of the surface of the upper shell, and the lower flange extends outward from the edges of the surface of the bottom plate, and a certain gap is formed between the lower flange and the upper flange. The gap is conducive to clamping the surface of the bag or box between the lower flange and the upper flange, thereby improving the firmness of the connection between the upper lock body and the bag.

[0013] Preferably, the lower lock body further includes a base, and the locking rod is connected to the base.

[0014] Specifically, the base includes a seat body and a seat plate, a column extends downward from the bottom surface of the seat body, the column is provided with a screw hole, the seat plate is arranged on the lower side of the seat body, and the seat plate is threadedly connected to the screw hole of the column through screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the rotary twist lock of the present invention when locked.

[0016] Figure 2 It is a three-dimensional diagram of the rotary twist lock of the present invention when it is unlocked.

[0017] Figure 3 It is a cross-sectional view of the rotary twist lock of the present invention.

[0018] Figure 4 It is an exploded view of the upper lock body of the rotary twist lock of the present invention.

[0019] Figure 5 It is a structural diagram of the knob of the rotary twist lock of the present invention.

[0020] Figure 6 It is a structural diagram of the rotating axis of the rotary twist lock of the present invention.

[0021] Figure 7 It is a diagram of the internal structure of the main body of the rotary twist lock of the present invention.

[0022] Figure 8 It is an exploded view of the lower lock body of the rotary twist lock of the present invention.

[0023] Fig. 9 It is a state diagram of the rotary twist lock of the present invention when it is unlocked. DETAILED DESCRIPTION

[0024] In order to explain the technical content, structural features and achieved effects of the present invention in detail, the following is a detailed description in conjunction with the implementation methods and the accompanying drawings.

[0025] like Figures 1 to 7 As shown, the rotary twist lock 100 of the present invention comprises an upper lock body 1 and a lower lock body 2, wherein the upper lock body 1 comprises a rotary release member 11, a main body 12, a locking pin 13, an elastic reset member 14 and a torsion spring 15, wherein the main body 12 has a receiving chamber 12a and a sliding groove 12b, wherein the receiving chamber 12a passes through the lower side of the main body 12 and is connected to the upper side of the main body 12 through a through hole 12d. The sliding grooves 12b are symmetrically arranged at opposite sides of the receiving chamber 12a. The locking pins 13 are slidably arranged in each of the sliding grooves 12b. The elastic reset member 14 is accommodated in the sliding grooves 12b and arranged between the locking pin 13 and the main body 12, so that the locking pin 13 extends into the receiving chamber 12a; the elastic reset member 14 is a compression spring. The lower lock body 2 is provided with a locking rod 21 on one side facing the upper lock body 1, and a locking cap 22 having a diameter larger than the locking rod 21 is provided on the top of the locking rod 21. When the locking rod 21 is inserted into the accommodating cavity 12a, one end of the two locking pins 13 can extend into the accommodating cavity 12a and be stuck on the bottom surface of the lock cap 22 to jointly block the lock cap 22 from exiting the accommodating cavity 12a. At this time, the lower lock body 2 can be locked with the upper lock body 1. The locking pin 13 is a rectangular parallelepiped structure and has a guide slope 13a on the lower side close to one end of the accommodating cavity 12a. The guide slope 13a can slide with the lock cap 22 when the lock cap 22 enters the accommodating cavity 12a, so that the locking pin 13 actively avoids the lock cap 22 and enters the accommodating cavity 12a. The surface of the main body 12 is provided with sliding holes 12e corresponding to the sliding grooves 12b, that is, the sliding holes 12e are symmetrically arranged and correspond to the locking pins 13 one by one. The locking pin 13 is provided with a sliding shaft 131 extending in the direction of the rotation release member 11. The sliding shaft 131 is perpendicular to the central axis or the extension direction of the locking pin 13 and is of a cylindrical structure. The bottom surface of the rotation release member 11 is provided with an arc groove 11a corresponding to the sliding shaft 131, and the two arc grooves 11a are symmetrically arranged. The sliding shaft 131 passes through the sliding hole 12e and is inserted into the arc groove 11a one by one. When the rotation release member 11 rotates relative to the main body 12, the locking pin 13 is driven to slide through the arc groove 11a so that the end portion withdraws from the accommodating chamber 12a, so as to release the lock cap 22 and allow the lock cap 22 to leave the accommodating chamber 12a; the torsion spring 15 is arranged between the main body 12 and the rotation release member 11 to reset the rotation release member 11.

[0026] Please see again Figure 4 and Figure 6 The rotary release member 11 includes a knob 111 and a rotation axis 112, and the arc groove 11a is arranged on the bottom surface of the knob 111. The rotation axis 112 can be rotatably built into the accommodating cavity 12a around its own central axis and has an accommodating hole 112a for the lock cap 22 to pass through and enter the accommodating cavity 12a, and the accommodating hole 112a is formed to pass through the upper and lower ends of the rotary axis 112. The rotation axis 112 is coaxially arranged with the accommodating cavity 12a. The knob 111 is arranged outside the main body 12, and the rotation axis 112 and the knob 111 are fixedly connected to each other. By dividing the rotary release member 11 into the knob 111 and the rotation axis 112, the rotary release member 11 can not only realize the rotation operation outside, but also be connected with the main body 12 and move relative to each other, and it is more convenient and quick to assemble.

[0027] Please see again Figure 4 and Figure 6More specifically, the rotating shaft 112 is provided with an annular groove 112b around the outer periphery of the accommodating hole 112a, and the torsion spring 15 is accommodated in the annular groove 112b and one end thereof abuts against the rotating shaft 112, and the other end abuts against the main body 12, thereby providing elastic force for restoring the rotating shaft 112. By using the annular groove 112b to accommodate the torsion spring 15, the torsion spring 15 can be limited to prevent the torsion spring 15 from being offset and causing failure. Through holes 112c are provided on opposite sides of the rotating shaft 112, and an arc-shaped sliding groove 12c corresponding to the through hole 112c is provided on the main body 12, and a screw 112g is provided in the through hole 112c, and the screw 112g passes through the through hole 112c and the arc-shaped sliding groove 12c and is fixedly connected to the knob 111; the screw 112g can slide in the arc-shaped sliding groove 12c. In this way, the rotating shaft 112 can be built into the main body 12 and fixedly connected to the knob 111, so that it rotates with the knob 111, and the torsion spring 15 can reset the knob 111. An opening 112d connecting the accommodating hole 112a and the outside of the rotating shaft 112 is provided on the lower side of the rotating shaft 112, and the opening 112d is provided for the end of the torsion spring 15 to extend out. A fan-shaped sliding area 112e corresponding to the locking pin 13 is provided in a recessed manner on one side of the rotating shaft 112 facing the locking pin 13, and the fan-shaped sliding area 112e is used for the locking pin 13 to pass through. A boss 112f is formed between the two fan-shaped sliding areas 112e. The through hole 112c is provided on the boss 112f. By providing the fan-shaped sliding area 112e, it is possible to prevent motion interference between the rotating shaft 112 and the locking pin 13, thereby making the structure more compact and reasonable and the volume smaller.

[0028] Please see again Figure 3 , Figure 4 and Figure 7 The main body 12 includes an upper shell 121, a bottom cover 122 and a bottom plate 123, and the bottom cover 122 and the bottom plate 123 are both arranged on the bottom surface of the upper shell 121. Specifically, the edges of the surface of the upper shell 121 extend outwardly to form an upper flange, and the edges of the surface of the bottom plate 123 extend outwardly to form a lower flange, and a certain gap is formed between the lower flange and the upper flange. The gap is conducive to clamping the surface of the bag or the box between the lower flange and the upper flange, thereby improving the firmness of the connection between the upper lock body 1 and the bag. The sliding groove 12b is opened on the bottom surface of the upper shell 121, and the opening of the sliding groove 12b is blocked by a sealing plate 1211.

[0029] See also Figure 3 and Figure 8The lower lock body 2 also includes a base 23, and the locking rod 21 is connected to the base 23, and the connection method can be threaded connection, welding or integral molding connection. Specifically, the base 23 includes a base 211 and a base plate 212, and a column 211a extends downward from the bottom surface of the base 211, and the column 211a is provided with a screw hole. The base plate 212 is arranged on the lower side of the base 211, and the base plate 212 is threadedly connected to the screw hole of the column 211 through a screw 211b. The upper edge of the base 211 extends outward, and there is a certain gap between the base plate 212 and the upper edge, so that the surface of the bag or the box can be stuck in the gap, thereby improving the firmness of the connection between the lower lock body 2 and the bag.

[0030] Combining the above and Figure 3 and Fig. 9 The working principle of the rotary twist lock 100 of the present invention is described in detail below:

[0031] First, when locking is required, the lower lock body 2 is brought close to the upper lock body 1, so that the locking rod 21 and the locking cap 22 extend into the receiving hole 112a of the rotating shaft 112, thereby allowing the locking cap 22 to enter the receiving cavity 12a. In this process, the front end of the locking cap 22 pushes the locking pin 13 away through the guiding inclined surface 13a. When the locking cap 22 passes over the locking pin 13, the locking pin 13 re-extends into the receiving cavity 12a under the elastic force of the elastic reset member 14. At this time, the locking pin 13 is just stuck at the bottom of the locking cap 22, and then the locking rod 21 can be locked, and the lower lock body 2 cannot leave the upper lock body 1, and the two are locked and connected.

[0032] When unlocking is required, the knob 111 is turned to rotate the knob 111 relative to the main body 12. At this time, the knob 111 overcomes the torsion of the torsion spring 15 and drives the sliding shaft 131 to slide in the arc groove 11a, so that the locking pin 13 slides away from the center of the main body 12 along the direction of the sliding groove 12b. At this time, the locking pin 13 can leave the lock cap 22 and leave the accommodating cavity 12a. At this time, the lock cap 22 is in an unlocked state. That is, the lower lock body 2 is unlocked relative to the upper lock body 1. At this time, driving the lower lock body 2 to leave the upper lock body 1 can unlock the rotary twist lock 100.

[0033] Compared with the prior art, the present invention provides a rotary release member 11, a main body 12 and a locking pin 13 on the upper lock body 1, wherein the locking pin 13 is slidably arranged in the sliding groove 12b of the main body 12, and an arc groove 11a is provided on the rotary release member 11, so that the sliding shaft 131 of the locking pin 13 extends into the arc groove 11a, so that the rotary release member 11 can be used to rotate relative to the main body 12 to drive the locking pin 13 to slide in the sliding groove 12b, thereby enabling the locking pin 13 to extend into or withdraw from the accommodating cavity 12a of the main body 12. Therefore, by providing the lower lock body 2, the lock cap 22 of the lower lock body 2 is used to extend into the accommodating cavity 12a, so that the locking pin 13 can clamp the lock cap 22 when extending into the accommodating cavity 12a, and the lock cap 22 can be withdrawn after withdrawing from the accommodating cavity 12a, so that the lower lock body 2 can be locked or released with the upper lock, which is very convenient to use. Moreover, the rotation method can realize diversified designs, making the appearance of the luggage lock buckle more fashionable and personalized. In addition, the rotation method is used to lock or release the lock, and the connection is more stable, and frequent opening and closing will not cause damage to the lock body. It has extremely high durability and reliability and a long service life. In addition, the elastic reset member 14 and the torsion spring 15 are used to effectively prevent accidental unlocking, and the use safety is higher.

[0034] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A rotary twist lock, characterized in that: The invention comprises an upper lock body and a lower lock body, wherein the upper lock body comprises a rotary release member, a main body, a locking pin, an elastic reset member and a torsion spring, wherein the main body is provided with a receiving cavity and a sliding groove, wherein the sliding groove is symmetrically arranged at two opposite sides of the receiving cavity; the locking pin is slidably arranged in each of the sliding grooves, and the elastic reset member is arranged between the locking pin and the main body so that the locking pin extends into the receiving cavity; a locking rod is arranged on the side of the lower lock body facing the upper lock body, and a locking cap having a diameter larger than the locking rod is arranged on the top of the locking rod; when the locking rod is inserted into the receiving cavity, one end of the locking pin is locked The locking nut is provided on the bottom surface of the lock cap to prevent the lock cap from exiting the accommodating cavity; a sliding hole corresponding to the sliding groove is provided on the surface of the main body, and a sliding shaft is provided on the locking pin in the direction of the rotary release member, and an arc groove corresponding to the sliding shaft is provided on the bottom surface of the rotary release member, and the sliding shaft passes through the sliding hole and is inserted into the arc groove; when the rotary release member rotates relative to the main body, the locking pin is driven to slide out of the accommodating cavity through the arc groove to release the lock cap and leave the accommodating cavity; the torsion spring is arranged between the main body and the rotary release member to reset the rotary release lock.

2. The rotary twist lock according to claim 1, characterized in that: The rotary release member includes a knob and a rotation axis. The rotation axis is built into the accommodating cavity and has an accommodating hole for the lock cap to pass through and enter the accommodating cavity. The knob is arranged outside the main body, and the rotation axis is fixedly connected to the knob.

3. The rotary twist lock according to claim 2, characterized in that: The rotating shaft is provided with an annular groove around the outer periphery of the accommodating hole. The torsion spring is accommodated in the annular groove and one end of the torsion spring abuts against the rotating shaft and the other end abuts against the main body.

4. The rotary twist lock according to claim 2, characterized in that: Through holes are provided on opposite sides of the rotating axis, an arc-shaped slide groove corresponding to the through hole is provided on the main body, a screw is provided in the through hole, and the screw passes through the through hole and the arc-shaped slide groove and is fixedly connected to the knob.

5. The rotary twist lock according to claim 2, characterized in that: An opening communicating with the accommodating hole and the outer side of the rotating shaft is formed on one side of the rotating shaft, and the end of the torsion spring is extended out of the opening.

6. The rotary twist lock according to claim 2, characterized in that: A fan-shaped sliding area corresponding to the locking pin is recessed on one side of the rotation axis toward the locking pin, and a boss is formed between the two fan-shaped sliding areas.

7. The rotary twist lock according to claim 1, characterized in that: The main body comprises an upper shell, a bottom cover and a bottom plate, and the bottom cover and the bottom plate are both arranged on the bottom surface of the upper shell.

8. The rotary twist lock according to claim 7, characterized in that: An upper flange is extended outwardly from the edges of the surface of the upper shell, and a lower flange is extended outwardly from the edges of the surface of the bottom plate, and a certain gap is formed between the lower flange and the upper flange.

9. The rotary twist lock according to claim 1, characterized in that: The lower lock body also includes a base, and the locking rod is connected to the base.

10. The rotary twist lock according to claim 9, characterized in that: The base includes a seat body and a seat plate. A column extends downward from the bottom surface of the seat body. The column is provided with a screw hole. The seat plate is arranged on the lower side of the seat body, and the seat plate is threadedly connected to the screw hole of the column through screws.

Images