Rotary twist lock

Abstract

The utility model discloses a rotary twist lock which comprises an upper lock body and a lower lock body, the upper lock body comprises a rotary lock releasing piece, a main body, a locking pin, an elastic reset piece and a torsion 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 locking pin is provided with a sliding shaft in the direction towards the rotary unlocking piece, the bottom face of the rotary unlocking piece is provided with an arc-shaped groove corresponding to the sliding shaft, and the sliding shaft 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 carried out in a rotating mode, durability is high, accidental unlocking is effectively prevented, and safety is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of luggage locks, in particular to a kind of rotary twist lock. BACKGROUND

[0002] Luggage lock catch is a device for fastening luggage, which is generally composed of lock catch button, lock catch seat, spring and other components. By pressing the lock catch button, the internal mechanism of the lock catch seat is triggered, achieving connection and unlocking, and achieving the purpose of closing and opening the luggage. Therefore, it is crucial to ensure that the luggage lock catch quickly opens and closes the luggage. However, after repeated use of the traditional luggage lock catch, the stability of the connection decreases, and when the lock catch button is pressed, it cannot be locked, and requires more force to pull, which can easily damage the lock catch structure. At the same time, due to the decline in performance of the lock catch and the internal spring, the luggage lock catch 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 catch. SUMMARY

[0003] The utility model aims at providing a rotary twist lock that is locked or unlocked by rotation, has high durability, effectively prevents accidental unlocking, and has high safety.

[0004] To achieve the above-mentioned purpose, the rotary twist lock provided by the utility model includes an upper lock body and a lower lock body. The upper lock body includes a rotary release lock, a main body, a locking pin, an elastic return element, and a torsional spring. The main body includes an upper housing, a bottom cover, and a bottom plate, both of which are arranged on the bottom surface of the upper housing. The main body has a receiving cavity and a sliding groove, which are symmetrically arranged on opposite sides of the receiving cavity. The locking pin is slidably arranged in each sliding groove, and the elastic return element is arranged between the locking pin and the main body to allow the locking pin to extend into the receiving cavity. The lower lock body includes a base, and the locking rod is connected to the base. The top of the locking rod is provided with a lock cap with a larger diameter than itself. When the locking rod is inserted into the receiving cavity, one end of the locking pin is clamped to the bottom surface of the lock cap to block the lock cap from exiting the receiving cavity. The locking pin is provided with a sliding shaft in the direction of the rotary release lock, and the bottom surface of the rotary release lock is provided with an arc-shaped groove corresponding to the sliding shaft. The sliding shaft is inserted into the arc-shaped groove. When the rotary release lock rotates relative to the main body, the locking pin is driven to slide out of the receiving cavity through the arc-shaped groove to release the lock cap and move away from the receiving cavity. The torsional spring is arranged between the main body and the rotary release lock to reset the rotary release lock.

[0005] Compared with the prior art, the utility model discloses a rotating release lock piece, a main body and a locking pin are arranged on the upper lock body, the locking pin is slidably arranged in the sliding groove of the main body, an arc-shaped groove is arranged on the rotating release lock piece, the sliding shaft of the locking pin extends into the arc-shaped groove, the locking pin can slide in the sliding groove by rotating the rotating release lock piece relative to the main body, and the locking pin can extend into or exit the accommodating cavity of the main body, therefore, the lower lock body is arranged, the lock cap of the lower lock body extends into the accommodating cavity, the locking pin can clamp the lock cap when extending into the accommodating cavity, and the lock cap can exit after the locking pin exits the accommodating cavity, so that the lower lock body can be locked or released, and the utility model is convenient to use.

[0006] Preferably, the rotating release lock piece comprises a knob and a rotating shaft, the rotating shaft is arranged in the accommodating cavity and has an accommodating hole through which the lock cap enters the accommodating cavity, and the knob is arranged outside the main body and is fixedly connected with the rotating shaft. By dividing the rotating release lock piece into the knob and the rotating shaft, the rotating release lock piece can be rotated outside and connected with the main body and move relative to the main body, and the rotating release lock piece is convenient to assemble.

[0007] Specifically, the rotating shaft is provided with an annular groove around the outer periphery of the accommodating hole, and the torsion spring is arranged in the annular groove and abuts against one end of the rotating shaft and the other end of the main body. The torsion spring is limited by the annular groove, so that the torsion spring is prevented from deviating and failing.

[0008] Specifically, the rotating shaft is provided with through holes on opposite sides, the main body is provided with arc-shaped sliding grooves corresponding to the through holes, and screws are arranged in the through holes and fixedly connected with the knob and pass through the through holes and the arc-shaped sliding grooves. In this way, the rotating shaft can be arranged in the main body and fixedly connected with the knob, so that the rotating shaft rotates with the knob.

[0009] Specifically, the rotating shaft is provided with through holes on opposite sides, the main body is provided with arc-shaped sliding grooves corresponding to the through holes, and screws are arranged in the through holes and fixedly connected with the knob and pass through the through holes and the arc-shaped sliding grooves. In this way, the rotating shaft can be arranged in the main body and fixedly connected with the knob, so that the rotating shaft rotates with the knob.

[0010] Specifically, the rotating shaft is recessed with a fan-shaped sliding area corresponding to the locking pin on the side of the rotating shaft facing the locking pin, and a boss is formed between the two fan-shaped sliding areas. By arranging the fan-shaped sliding area, the rotating shaft and the locking pin are prevented from interfering with each other, so that the structure is more compact and reasonable, and the volume is smaller.

[0011] Specifically, the upper flange is outwardly extended from the surface of the upper shell, the lower flange is outwardly extended from the surface of the bottom plate, and a 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, and improves the firmness of the connection between the upper lock body and the bag.

[0012] Specifically, the base includes a seat body and a seat plate, the bottom surface of the seat body extends downwardly to a column body, the column body is provided with a threaded hole, and the seat plate is arranged on the lower side of the seat body and is threadedly connected with the threaded hole of the column body by a screw. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a perspective view of the rotating twist lock in the locking state.

[0014] Figure 2 is a perspective view of the rotating twist lock in the unlocking state.

[0015] Figure 3 is a sectional view of the rotating twist lock.

[0016] Figure 4 is an exploded view of the upper lock body of the rotating twist lock.

[0017] Figure 5 is a structure view of the knob of the rotating twist lock.

[0018] Figure 6 is a structure view of the rotating shaft of the rotating twist lock.

[0019] Figure 7 is an internal structure view of the main body of the rotating twist lock.

[0020] Figure 8 is an exploded view of the lower lock body of the rotating twist lock.

[0021] Figure 9 is a state view of the rotating twist lock in the unlocking state. DETAILED DESCRIPTION

[0022] To make the technical content, structural features and effects of the present application clear, the following will be described in detail in combination with the embodiments and the accompanying drawings.

[0023] As Figures 1 to 7 shown, the utility model discloses a rotary twist lock 100, including the upper lock body 1 and the lower lock body 2, the upper lock body 1 includes the rotation release lock piece 11, the main part 12, the locking pin 13, the elastic reset piece 14 and the torsion spring 15, the main part 12 has the accommodation cavity 12a and the sliding groove 12b in, the accommodation cavity 12a is through the downside of the main part 12 and is communicated the upside of the main part 12 by a through-hole 12d. The sliding groove 12b is symmetrically arranged in the opposite two of the accommodation cavity 12a. The locking pin 13 is slidably arranged in each sliding groove 12b. The elastic reset piece 14 is accommodated in the sliding groove 12b and is arranged between the locking pin 13 and the main part 12, so that the locking pin 13 extends into the accommodation cavity 12a;The elastic reset piece 14 is a compression spring. The lower lock body 2 is provided with a locking rod 21 on one side of the upper lock body 1, and the top of the locking rod 21 is provided with a lock cap 22 with a diameter larger than itself. When the locking rod 21 is inserted into the accommodation cavity 12a, one end of the two locking pins 13 can extend into the accommodation cavity 12a and be clamped on the bottom surface of the lock cap 22 to jointly block the lock cap 22 from exiting the accommodation 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 cuboid structure and has a guide slope 13a on the lower side of the end close to the accommodation cavity 12a, which can slide with the lock cap 22 when the lock cap 22 enters the accommodation cavity 12a, so that the locking pin 13 actively avoids the lock cap 22 and enters the accommodation cavity 12a. The surface of the main part 12 is provided with a sliding hole 12e corresponding to the sliding groove 12b, that is, the sliding hole 12e is symmetrically arranged and corresponds to the locking pin 13. The locking pin 13 extends in the direction of the rotation release lock piece 11 and is provided with a sliding shaft 131, which is perpendicular to the center axis or extension direction of the locking pin 13, and the sliding shaft 131 is in a cylindrical structure. The bottom surface of the rotation release lock piece 11 is provided with an arc-shaped groove 11a corresponding to the sliding shaft 131, and the two arc-shaped grooves 11a are symmetrically arranged. The sliding shaft 131 passes through the sliding hole 12e and is correspondingly inserted into the arc-shaped groove 11a. When the rotation release lock piece 11 rotates relative to the main part 12, the locking pin 13 is driven to slide by the arc-shaped groove 11a, and the end portion exits the accommodation cavity 12a, so as to release the lock cap 22 and allow the lock cap 22 to leave the accommodation cavity 12a;The torsion spring 15 is arranged between the main part 12 and the rotation release lock piece 11 to reset the rotation release lock piece 11.

[0024] Please also refer to Figure 4 and Figure 6The rotating release 11 comprises a knob 111 and a rotating shaft 112, and the arc-shaped slot 11a is arranged on the bottom surface of the knob 111. The rotating shaft 112 is rotatably arranged in the accommodating cavity 12a and has an accommodating hole 112a through which the lock cap 22 can pass into the accommodating cavity 12a. The accommodating hole 112a is arranged through the upper and lower ends of the rotating shaft 112. The rotating shaft 112 is coaxially arranged with the accommodating cavity 12a. The knob 111 is arranged outside the main body 12, and the rotating shaft 112 is fixedly connected with the knob 111. By dividing the rotating release 11 into the knob 111 and the rotating shaft 112, the rotating release 11 can be rotated externally, and can be connected with the main body 12 and relatively moved, and the assembly is more convenient and fast.

[0025] Please also refer to Figure 4 and Figure 6 More specifically, the rotating shaft 112 is provided with an annular groove 112b around the outer periphery of the accommodating hole 112a. The torsion spring 15 is arranged in the annular groove 112b and abuts against one end of the rotating shaft 112 and the other end of the main body 12, so as to provide the rotating shaft 112 with a reset elastic force. By arranging the torsion spring 15 in the annular groove 112b, the torsion spring 15 can be limited and prevented from deviating and causing failure. The rotating shaft 112 is provided with through holes 112c on opposite sides. The main body 12 is provided with arc-shaped sliding grooves 12c corresponding to the through holes 112c. Screws 112g are arranged in the through holes 112c and pass through the through holes 112c and the arc-shaped sliding grooves 12c and are fixedly connected with the knob 111. The screws 112g can slide in the arc-shaped sliding grooves 12c. In this way, the rotating shaft 112 can be arranged in the main body 12 and fixedly connected with the knob 111, so as to rotate with the knob 111 and reset the knob 111 by the torsion spring 15. The lower side of the rotating shaft 112 is provided with an opening 112d communicating with the accommodating hole 112a and the outside of the rotating shaft 112, and the opening 112d is used for the end of the torsion spring 15 to extend out. The side of the rotating shaft 112 facing the locking pin 13 is recessed and provided with fan-shaped sliding areas 112e corresponding to the locking pin 13, and the fan-shaped sliding areas 112e are used for the locking pin 13 to pass through. The through holes 112c are arranged on the bosses 112f. By arranging the fan-shaped sliding areas 112e, the rotating shaft 112 and the locking pin 13 can not interfere with each other, so as to make the structure more compact and reasonable and smaller in size.

[0026] Please refer to Figure 3 , Figure 4 and Figure 7 , the main body 12 comprises an upper shell 121, a bottom cover 122 and a bottom plate 123, the bottom cover 122 and the bottom plate 123 are arranged on the bottom surface of the upper shell 121. Specifically, the surface of the upper shell 121 extends outwardly at the four edges of the surface of the upper shell 121, the bottom plate 123 extends outwardly at the four edges of the surface of the bottom plate 123, and a gap is formed between the lower flange and the upper flange. The gap is conducive to the skin of the bag or the box being clamped between the lower flange and the upper flange, improving the firmness of the connection between the upper lock body 1 and the bag. The sliding groove 12b is provided on the bottom surface of the upper shell 121, and the opening of the sliding groove 12b is blocked by a sealing plate 1211.

[0027] Please refer to Figure 3 and Figure 8 , the lower lock body 2 further comprises a base 23, and the locking rod 21 is connected to the base 23, which can be connected by screwing, welding or integrally forming. Specifically, the base 23 comprises a seat body 211 and a seat plate 212, the bottom surface of the seat body 211 extends downwardly to form a column 211a, and the column 211a is provided with a threaded hole. The seat plate 212 is arranged on the lower side of the seat body 211, and the seat plate 212 is connected to the threaded hole of the column 211 by screwing through the screw 211b. The upper edge of the seat body 211 extends outwardly, and the seat plate 212 and the upper edge have a gap therebetween, so that the skin of the bag or the box can be clamped in the gap, improving the firmness of the connection between the lower lock body 2 and the bag.

[0028] In combination with the above and Figure 3 and Figure 9 , the working principle of the rotating twist lock 100 of the utility model will be described in detail as follows:

[0029] First, when locking is needed, the lower lock body 2 is moved close to the upper lock body 1, so that the locking rod 21 and the lock cap 22 are inserted into the accommodating hole 112a of the rotating shaft 112, and the lock cap 22 is inserted into the accommodating cavity 12a. In this process, the front end of the lock cap 22 is pushed open by the guide inclined surface 13a, and when the lock cap 22 passes the lock pin 13, the lock pin 13 is reinserted into the accommodating cavity 12a under the elastic force of the elastic reset member 14. At this time, the lock pin 13 is clamped at the bottom of the lock cap 22, so that the locking rod 21 is locked, and the lower lock body 2 cannot be separated from the upper lock body 1, and the two are locked and connected.

[0030] When it is needed to be unlocked, the knob 111 is twisted 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-shaped slot 11a, so that the locking pin 13 slides away from the center of the main body 12 along the sliding slot 12b. At this time, the locking pin 13 can be away from the lock cap 22 and away from the accommodating cavity 12a. At this time, the lock cap 22 is in an unlocked state. That is, the lower lock body 2 is released relative to the upper lock body 1, at this time, driving the lower lock body 2 away from the upper lock body 1 can make the rotary twist lock 100 be unlocked.

[0031] Compared with the prior art, since the utility model discloses a rotary release lock piece 11, a main body 12 and a locking pin 13 are arranged on the upper lock body 1, the locking pin 13 is slidably arranged in the sliding slot 12b of the main body 12, and the arc-shaped slot 11a is arranged on the rotary release lock piece 11, so that the sliding shaft 131 of the locking pin 13 extends into the arc-shaped slot 11a, so that the locking pin 13 can be slid in the sliding slot 12b by rotating the rotary release lock piece 11 relative to the main body 12, and then the locking pin 13 can extend into or exit the accommodating cavity 12a of the main body 12, therefore, by arranging the lower lock body 2, the lock cap 22 of the lower lock body 2 extends into the accommodating cavity 12a, so that the locking pin 13 can be clamped on the lock cap 22 when extending into the accommodating cavity 12a, and the lock cap 22 can be exited after exiting the accommodating cavity 12a, so that the lower lock body 2 can be locked or released, and it is very convenient to use. And the rotary mode can realize diversified design, so that the appearance of the luggage lock is more fashionable and personalized. In addition, the rotary mode is adopted for locking or releasing, the connection stability is higher, and frequent opening and closing will not damage the lock body, and the utility model has high durability and reliability and long service life. Moreover, the elastic reset member 14 and the torsion spring 15 are adopted to double elastic force, so that the accidental unlocking condition is effectively prevented, and the safety is higher.

[0032] The above only discloses the preferred embodiment of the utility model, and of course cannot limit the scope of the utility model, so equivalent changes made according to the patent application scope of the utility model still belong to the scope covered by the utility model.

Claims

1. A rotary twist lock, characterized in that: The device includes an upper locking body and a lower locking body. The upper locking body includes a rotary release component, a main body, a locking pin, an elastic reset component, and a torsion spring. The main body includes an upper housing, a bottom cover, and a bottom plate, with the bottom cover and bottom plate both disposed on the bottom surface of the upper housing. The main body has a receiving cavity and sliding grooves, with the sliding grooves symmetrically arranged on opposite sides of the receiving cavity. The locking pin is slidably disposed in each of the sliding grooves, and the elastic reset component is disposed between the locking pin and the main body, allowing the locking pin to extend into the receiving cavity. The lower locking body includes a base, and a locking rod is provided on the side of the lower locking body facing the upper locking body, with the locking rod connected to the base. The locking rod has a locking cap with a diameter larger than itself at its top. When the locking rod is inserted into the receiving cavity, one end of the locking pin is engaged with the bottom surface of the locking cap to prevent the locking cap from exiting the receiving cavity. The locking pin has a sliding shaft in the direction of the rotating release member, and the bottom surface of the rotating release member has an arc-shaped groove corresponding to the sliding shaft. The sliding shaft is inserted into the arc-shaped groove. When the rotating release member rotates relative to the main body, it drives the locking pin to slide out of the receiving cavity through the arc-shaped groove to release the locking cap and leave the receiving cavity. The torsion spring is disposed between the main body and the rotating release member to reset the rotating release member.

2. The rotary torsion lock as described in claim 1, characterized in that: The rotary unlocking component includes a knob and a rotating shaft. The rotating shaft is built into the receiving cavity and has a receiving hole through which the lock cap can pass and enter the receiving cavity. The knob is located outside the main body, and the rotating shaft is fixedly connected to the knob.

3. The rotary torsion lock as described in claim 2, characterized in that: The rotating shaft has an annular groove around the outer periphery of the receiving hole. The torsion spring is housed in the annular groove, with one end abutting against the rotating shaft and the other end abutting against the main body.

4. The rotary torsion lock as described in claim 2, characterized in that: Through holes are provided on opposite sides of the rotating shaft. The main body is provided with an arc-shaped groove corresponding to the through hole. A screw is provided in the through hole. The screw passes through the through hole and the arc-shaped groove and is fixedly connected to the knob.

5. The rotary torsion lock as described in claim 2, characterized in that: An opening is provided on one side of the rotating shaft, connecting the receiving hole and the outside of the rotating shaft, and the opening allows the end of the torsion spring to extend out.

6. The rotary torsion lock as described in claim 2, characterized in that: The rotating shaft is recessed on the side facing the locking pin, and a fan-shaped sliding area corresponding to the locking pin is formed between the two fan-shaped sliding areas.

7. The rotary torsion lock as described in claim 1, characterized in that: An upper flange extends outward from the periphery of the upper shell surface, and a lower flange extends outward from the periphery of the bottom plate surface, with a certain gap between the lower flange and the upper flange.

8. The rotary torsion lock as described in claim 1, characterized in that: The base includes a base body and a base plate. A column extends downward from the bottom surface of the base body. The column has a screw hole. The base plate is located on the lower side of the base body and is threadedly connected to the screw hole of the column by screws.

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