Rotary twist lock

Abstract

The present invention discloses a rotary twist lock, comprising 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 return member, and a torsion spring. The main body comprises a receiving cavity and a sliding groove, the sliding grooves being symmetrically arranged on opposite sides of the receiving cavity. The locking pins are slidably arranged in the respective sliding grooves, and the elastic return member is arranged between the locking pins and the main body. The lower lock body comprises a locking rod, the top of which is provided with a locking cap. When the locking rod is inserted into the receiving cavity, one end of the locking pin is clamped on the bottom surface of the locking 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 of the rotary release member. The bottom surface of the rotary release member is provided with an arc-shaped groove corresponding to the sliding shaft. The sliding shaft passes through the sliding hole and is inserted into the arc-shaped groove. The torsion spring is arranged between the main body and the rotary release member. The present invention locks or unlocks by rotation, is highly durable, effectively prevents accidental unlocking, and has high safety.

Description

Technical Field

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

[0002] A luggage lock is a device used to fasten luggage and 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, connecting and unlocking the luggage, thereby closing and opening the luggage. Therefore, ensuring that the luggage lock can open and close the luggage quickly is crucial. However, after repeated use, the stability of the connection of traditional luggage locks decreases. When the lock button is pressed, it may not lock, requiring greater force to pull, which can easily damage the lock structure. At the same time, due to the deterioration of the lock and internal spring performance, the luggage lock will automatically unlock under the influence of non-human subjective factors such as vibration or shaking, causing the lock to lose its locking function. Summary of the Invention

[0003] The object of the present invention is to provide a rotary twist lock that 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 includes an upper lock body and a lower lock body, the upper lock body includes 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 accommodating cavity and a sliding groove, the sliding grooves are symmetrically arranged on the opposite sides of the accommodating cavity; the locking pins are respectively 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 accommodating cavity; the lower lock body is provided with a locking rod on the side facing the upper lock body, and the top of the locking rod is provided with a lock cap with a diameter larger than itself; when the locking rod is inserted into the accommodating cavity , one end of the locking pin is stuck in 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 to the prior art, the present invention utilizes a rotary release member, a main body, and a locking pin on the upper lock body. The locking pin is slidably disposed within a sliding groove in the main body, and an arcuate groove is provided on the rotary release member. The sliding shaft of the locking pin extends into the arcuate groove, allowing the rotary release member to rotate relative to the main body to drive the locking pin to slide within the sliding groove, thereby allowing the locking pin to enter or exit the receiving cavity of the main body. Furthermore, by providing a lower lock body, the locking cap of the lower lock body extends into the receiving cavity, allowing the locking pin to engage the locking cap when entering the receiving cavity and to withdraw after exiting the cavity. This allows the lower lock body to lock or release the upper lock, making it very convenient to use. Furthermore, the rotational design allows for a variety of designs, making the luggage lock buckle more stylish and personalized. Furthermore, the rotary locking and releasing method provides a more secure connection, and frequent opening and closing will not damage the lock body, resulting in 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 internally disposed within the accommodating cavity and has an accommodating hole through which the lock cap can pass and enter the accommodating cavity. The knob is disposed outside the main body, and the rotation axis is fixedly connected to the knob. By separating the rotary release member into a knob and a rotation axis, the rotary release member can be rotated externally while also being connected to the main body for relative movement. This makes assembly more convenient and quick.

[0007] Specifically, the rotation axis has an annular groove around the outer circumference of the receiving hole. 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 in position to prevent it from deviating and causing failure.

[0008] Specifically, through holes are provided on opposite sides of the rotation axis, and arc-shaped slots corresponding to the through holes are provided on the main body. Screws are provided in the through holes, and the screws pass through the through holes and the arc-shaped slots and are fixedly connected to the knob. This allows the rotation axis to be built into the main body while also being fixedly connected to the knob, so that it rotates with the knob.

[0009] Specifically, an opening communicating with the accommodating hole and the outside of the rotating shaft is formed on one side of the rotating shaft, and the end of the torsion spring is allowed to extend 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, with a boss formed between the two fan-shaped sliding areas. The provision of the fan-shaped sliding area prevents motion interference between the rotation axis and the locking pin, resulting in a more compact and reasonable structure and smaller 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, an upper flange extends outwardly from the periphery of the upper shell surface, and a lower flange extends outwardly from the periphery of the bottom plate surface, with a certain gap formed between the lower flange and the upper flange. This gap facilitates the attachment of a bag or case between the lower and upper flanges, thereby enhancing the secure 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 base body and a base plate. A column extends downward from the bottom surface of the base body. The column is provided with a screw hole. The base plate is arranged on the lower side of the base body and 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 view of the rotary twist lock of the present invention when locked.

[0016] Figure 2 It is a three-dimensional view 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 1 is a diagram showing 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] Figure 9 1 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 embodiments 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. The upper lock body 1 includes a rotary release 11, a main body 12, a locking pin 13, an elastic return member 14, and a torsion spring 15. The main body 12 defines a receiving cavity 12a and a sliding groove 12b. The receiving cavity 12a extends through the lower side of the main body 12 and connects to the upper side of the main body 12 via a through hole 12d. The sliding grooves 12b are symmetrically arranged on opposite sides of the receiving cavity 12a. The locking pins 13 are slidably disposed within each of the sliding grooves 12b. The elastic return member 14 is received within the sliding grooves 12b and disposed between the locking pins 13 and the main body 12, allowing the locking pins 13 to extend into the receiving cavity 12a. The elastic return member 14 is a compression spring. A locking rod 21 is provided on the side of the lower lock body 2 facing the upper lock body 1. The top of the locking rod 21 is provided with a locking cap 22 having a larger diameter than the rod itself. 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, thereby jointly preventing 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 bevel 13a on the lower side near one end of the accommodating cavity 12a. The guide bevel 13a can slide with the lock cap 22 when the lock cap 22 enters the accommodating cavity 12a, thereby allowing the locking pin 13 to actively avoid the lock cap 22 and enter 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 one-to-one with the locking pins 13. The locking pin 13 is provided with a sliding shaft 131 extending toward the rotational release member 11. The sliding shaft 131 is perpendicular to the central axis or extension direction of the locking pin 13 and has a cylindrical structure. The bottom surface of the rotational release member 11 is provided with arcuate grooves 11a corresponding to the sliding shafts 131, with the two arcuate grooves 11a being symmetrically arranged. The sliding shafts 131 pass through the sliding holes 12e and are inserted into the arcuate grooves 11a in a one-to-one correspondence. When the rotational release member 11 rotates relative to the main body 12, the arcuate grooves 11a drive the locking pin 13 to slide, causing the end portion to exit the accommodating cavity 12a, thereby releasing the locking cap 22 and allowing it to leave the accommodating cavity 12a. A torsion spring 15 is disposed between the main body 12 and the rotational release member 11 to reset the rotational release member 11.

[0026] See also Figure 4 and Figure 6 The rotary release member 11 includes a knob 111 and a rotation axis 112. The arc-shaped groove 11a is provided on the bottom surface of the knob 111. The rotation axis 112 is internally mounted within the accommodating cavity 12a and is rotatable about its own central axis. The rotation axis 112 has an accommodating hole 112a through which the lock cap 22 passes and enters the accommodating cavity 12a. The accommodating hole 112a extends through the upper and lower ends of the rotation axis 112. The rotation axis 112 is coaxial with the accommodating cavity 12a. The knob 111 is provided 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 111 into the knob 111 and the rotation axis 112, the rotary release member 11 can be rotated externally and connected to the main body 12 for relative movement. This makes assembly more convenient and quick.

[0027] See also Figure 4 and Figure 6More specifically, the rotating shaft 112 is provided with an annular groove 112b around the outer circumference of the accommodating hole 112a. The torsion spring 15 is accommodated in the annular groove 112b, with one end abutting against the rotating shaft 112 and the other end abutting against the main body 12, thereby providing elastic force for the rotating shaft 112 to return to its original position. By utilizing the annular groove 112b to accommodate the torsion spring 15, the torsion spring 15 can be limited in position to prevent it from shifting and causing failure. Through holes 112c are provided on opposite sides of the rotating shaft 112. The main body 12 is provided with an arcuate slot 12c corresponding to the through hole 112c. A screw 112g is provided in the through hole 112c. The screw 112g passes through the through hole 112c and the arcuate slot 12c and is fixedly connected to the knob 111. The screw 112g can slide within the arcuate slot 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. The lower side of the rotating shaft 112 is provided with an opening 112d that connects the accommodating hole 112a and the outside of the rotating shaft 112. The opening 112d allows the end of the torsion spring 15 to extend. The rotating shaft 112 is recessed on one side facing the locking pin 13 and is provided with a fan-shaped sliding area 112e corresponding to the locking pin 13. 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] See also 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. The bottom cover 122 and the bottom plate 123 are both arranged on the bottom surface of the upper shell 121. Specifically, upper flanges extend outward from the edges of the surface of the upper shell 121, and lower flanges extend outward from the edges of the surface of the bottom plate 123. A certain gap is formed between the lower flange and the upper flange. The gap is conducive to clamping the surface of a leather bag or a 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. The connection method can be threaded connection, welding, or integral molding. Specifically, the base 23 includes a base 211 and a base plate 212. A column 211a extends downward from the bottom surface of the base 211. The column 211a is provided with a screw hole. The base plate 212 is arranged on the lower side of the base 211 and is threadedly connected to the screw hole of the column 211 via 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 a bag or a 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 Figure 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 closer to the upper lock body 1, so that the locking rod 21 and the lock cap 22 extend into the accommodating hole 112a of the rotating shaft 112, thereby allowing the lock cap 22 to enter the accommodating cavity 12a. During this process, the front end of the lock cap 22 pushes away the locking pin 13 via the guide slope 13a. After the lock cap 22 passes over the locking pin 13, the locking pin 13 re-enters the accommodating cavity 12a under the elastic force of the elastic return member 14. At this time, the locking pin 13 is exactly stuck on the bottom of the lock cap 22, thereby locking the locking rod 21. The lower lock body 2 cannot leave the upper lock body 1, and the two are locked together.

[0032] To unlock, the knob 111 is turned, rotating it relative to the main body 12. The knob 111 overcomes the torsion force of the torsion spring 15 and drives the slide shaft 131 to slide within the arcuate slot 11a, causing the locking pin 13 to slide along the sliding slot 12b, away from the center of the main body 12. The locking pin 13 then disengages from the lock cap 22 and exits the accommodating cavity 12a. The lock cap 22 is now unlocked, effectively releasing the lower lock body 2 from the upper lock body 1. Driving the lower lock body 2 away from the upper lock body 1 unlocks the rotary twist lock 100.

[0033] The lock pin 13 is locked in the locking chute 12a when the upper lock body 1 is unlocked, and the lock pin 13 is locked in the locking chute 12b when the lower lock body 1 is unlocked. Furthermore, the rotational mechanism allows for a variety of designs, making the luggage lock more stylish and personalized. Furthermore, the rotational mechanism for locking and releasing the lock provides a more secure connection, and frequent opening and closing will not damage the lock body, resulting in extremely high durability and reliability, and a long service life. Furthermore, the dual elastic force of the elastic return member 14 and the torsion spring 15 effectively prevents accidental unlocking, providing increased safety.

[0034] The above disclosure is merely a preferred embodiment of the present invention and certainly cannot be used to limit the scope 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 lock body 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 return member and a torsion spring, the main body is provided with a accommodating cavity and a sliding groove, the sliding grooves are symmetrically arranged on two opposite sides of the accommodating cavity; the locking pins are slidably arranged in each of the sliding grooves, the elastic return member is arranged between the locking pin and the main body, so that the locking pin extends into the accommodating cavity; the lower lock body is provided with a locking rod on the side facing the upper lock body, and the top of the locking rod is provided with a lock cap with a diameter larger than itself; when the locking rod is inserted into the accommodating cavity, one end of the locking pin is locked The locking nut is fixed to the locking mechanism so as to lock the locking nut and release the locking nut, so that the locking nut is locked and the locking nut is released.

2. The rotary twist lock according to claim 1, wherein: The rotary release member includes a knob and a rotating shaft. The rotating shaft 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 rotating shaft is fixedly connected to the knob.

3. The rotary twist lock according to claim 2, wherein: 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 with one end abutting against the rotating shaft and the other end abutting against the main body.

4. The rotary twist lock according to claim 2, wherein: Through holes are provided on opposite sides of the rotating shaft, and an arc-shaped sliding 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 sliding groove and is fixedly connected to the knob.

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

7. The rotary twist lock according to claim 1, wherein: 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.

8. The rotary twist lock according to claim 7, wherein: Upper flanges are extended outwardly from the four edges of the surface of the upper shell, and lower flanges are extended outwardly from the four edges of the surface of the bottom plate, with a certain gap formed between the lower flange and the upper flange.

9. The rotary twist lock according to claim 1, wherein: The lower lock body further includes a base, and the locking rod is connected to the base.

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

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