A hatch lock

Abstract

The present invention discloses a cabin door lock, including a lock core, a clutch mechanism, a balancing mechanism, a torsion sleeve, a rotating sleeve and a lock block. A rotating block is arranged at one end of the lock core, the clutch mechanism is composed of a torsion plate, a first spring and two balancing blocks, a clamping groove and a torsion block are arranged on the torsion plate, a first convex block, a second convex block, a wedge block and a positioning shaft are arranged on the balancing block, the second spring is positioned on the positioning shaft, the wedge block cooperates with the torsion block, a first through groove and a slide groove are arranged on the torsion sleeve, a second through groove, a third through groove and a cam groove are arranged on the rotating sleeve, the second convex block cooperates with the slide groove, the first convex block cooperates with the first through groove and the second through groove, the torsion sleeve cooperates with the rotating sleeve through the third spring, and the rotating sleeve cooperates with the lock block through the fourth spring. The present invention has the beneficial effects that the lock core can be automatically reset through the clutch mechanism while realizing the core replacement function, which greatly improves the convenience of lock operation, avoids the cabin door jamming phenomenon, and greatly reduces the expensive cost when the key is lost.

Description

Technical Field

[0001] The invention relates to the field of mechanical locks, and in particular to a cabin door lock. Background Art

[0002] With the improvement of living standards, more and more people like to travel. There are many means of transportation for travel. RVs, as a fashionable type of vehicle introduced from abroad, have the following home facilities: bedding, stoves, refrigerators, cabinets, sofas, dining tables and chairs, washing facilities, air conditioners, televisions, audio equipment and other furniture and electrical appliances. They can be divided into driving area, living area, bedroom area, sanitary area, kitchen area, etc. RVs are fashionable products that integrate "clothing, food, housing and transportation" to realize "traveling in life and living in travel".

[0003] Since there are many door locks on an RV, in order to facilitate door opening, all door locks use the same key. Once the key is lost, all door locks cannot be opened and all door locks have to be replaced. In addition, there are many internal structures of the RV, and the RV hatch door locks can easily get stuck as the driving is bumpy. Therefore, a new type of hatch door lock is urgently needed. Summary of the invention

[0004] In view of the situation in the above background technology, the present invention provides a hatch door lock, which can automatically reset the lock core through a clutch mechanism and realize the core replacement function.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions: a hatch lock, comprising a lock core, a clutch mechanism, a balancing mechanism, a torsion sleeve, a rotating sleeve and a lock block, wherein a rotating block is provided at one end of the lock core, the clutch mechanism is composed of a torsion disk and a first spring, a transverse groove is provided at one end of the torsion disk, and a torsion block is provided at the other end, the balancing mechanism is composed of a plurality of balancing blocks and a second spring, the balancing block is provided with a first protrusion, a second protrusion, a wedge block and a positioning shaft, the two ends of the second spring are respectively positioned on the positioning shaft, the wedge block cooperates with the torsion block, the torsion sleeve is provided with a first through groove and a slide groove, the rotating sleeve is provided with a second through groove, a third through groove and a cam groove, the torsion sleeve is installed inside the rotating sleeve, the second protrusion cooperates with the slide groove, the first protrusion cooperates with the first through groove, the first protrusion also cooperates with the second through groove, the torsion sleeve cooperates with the rotating sleeve through the third spring, and the rotating sleeve cooperates with the lock block through the fourth spring.

[0006] Preferably, the lock core is installed in a lock core sleeve, a clamping block is further provided on the lock core, a groove is provided on the lock core sleeve, and the clamping block cooperates with the groove.

[0007] Preferably, the lock core includes a lock core and a change core.

[0008] Preferably, there are two types of keys for unlocking the lock core, the key with a shorter tongue is the unlocking key, and the key with a longer tongue is the core replacement key.

[0009] Preferably, a first spring is also installed on the torsion plate, and the other end of the first spring is fixed to the bottom of the positioning hole in the torsion sleeve.

[0010] Preferably, the torsion sleeve is further provided with a blind hole, and the torsion sleeve slides along the third through groove via a pin installed in the blind hole.

[0011] Preferably, a positioning hole is provided at one end of the torsion sleeve, and one end of the third spring is installed in the positioning hole.

[0012] Preferably, a positioning sleeve is provided at one end of the locking block, and one end of the fourth spring is sleeved on the positioning sleeve.

[0013] Preferably, the other end of the locking block fixes the locking tongue to the locking block by means of a screw.

[0014] Preferably, a cylindrical pin is also installed on the locking block, and the cylindrical pin can slide along the cam groove.

[0015] Preferably, a clamping sleeve is sleeved on the rotating sleeve, and a stopper is provided on the positioning sleeve, and the stopper is located at the highest point of the cam groove.

[0016] Preferably, the torque sleeve and the lock core sleeve are connected via an elastic pin.

[0017] The clutch mechanism can automatically reset the lock cylinder, making full use of the dexterity of the mechanical structure and providing double protection for the unlocking process, preventing the hatch from opening automatically during driving. The automatic core replacement function enables the lock body to be reused, avoiding the expensive cost of relocking when the key is lost. At the same time, the lock tongue retracts and retracts while rotating, preventing the hatch from getting stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the present invention.

[0019] Figure 2 It is a cross-sectional view of the present invention.

[0020] Figure 3 , 4 5 is a schematic diagram of the unlocking state of the present invention.

[0021] Figure 6 It is a schematic diagram of the clutch mechanism of the present invention.

[0022] Figure 7 It is a schematic diagram of the balancing mechanism of the present invention.

[0023] Figure 8It is a schematic diagram of the twist sleeve of the present invention.

[0024] Fig. 9 It is a schematic diagram of the lock core mechanism of the present invention.

[0025] Fig.10 It is a schematic diagram of a rotating sleeve of the present invention.

[0026] In the figure: 1-key, 2-lock housing, 301-twist sleeve, 302-first through groove, 303-slide groove, 304-blind hole, 305-positioning hole, 4-lock tongue, 501-lock core, 502-lock chip, 503-rotating block, 504-block, 505-groove, 506-lock hole, 507-change chip, 601-twist plate, 602-transverse groove, 603-twist block, 604-first spring, 701-rotating Sleeve, 702-second through groove, 703-third through groove, 704-cam groove, 801-balance block, 802-second spring, 803-first protrusion, 804-positioning shaft, 805-second protrusion, 806-wedge block, 9-third spring, 10-fourth spring, 111-lock block, 112-cylindrical pin, 113-positioning sleeve, 12-screw, 131-card sleeve, 132-block, 14-lock core sleeve. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions of various embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments described in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1-10As shown, a hatch lock comprises a lock core 501, a clutch mechanism, a balancing mechanism, a torsion sleeve 301, a rotating sleeve 701 and a lock block 111, wherein the lock core 501 is provided with a rotating block 503 at one end and a lock hole 506 at the other end, wherein a key 1 is inserted into the lock hole 506, wherein the clutch mechanism comprises a torsion plate 601 and a first spring 604, wherein the torsion plate 601 is provided with a transverse groove 602 at one end and a torsion block 603 at the other end, wherein the balancing mechanism comprises a balancing block 801 and a second spring 802, wherein the balancing block 801 is provided with a first protrusion 803, a second protrusion 805, a wedge block 806 and a positioning shaft 804, wherein both ends of the second spring 802 are respectively positioned on the positioning shaft 804, wherein The wedge block 806 cooperates with the torsion block 603, and the wedge block 806 can move up and down as the torsion block 603 rotates. The torsion sleeve 301 is provided with a first through groove 302 and a slide groove 303. The rotating sleeve 701 is provided with a second through groove 702, a third through groove 703 and a cam groove 704. The torsion sleeve 301 is installed inside the rotating sleeve 701. The second protrusion 805 cooperates with the slide groove 303, the first protrusion 803 cooperates with the first through groove 302, and the first protrusion 803 also cooperates with the second through groove 702. The lock core 501 includes a lock core 502 and a change core 507. There are two types of keys 1 for unlocking the lock core 501, one is One is shorter and can only contact the lock chip 502, and the other is longer and can contact the change chip 507. The torsion sleeve 301 cooperates with the rotating sleeve 701 through the third spring 9, and the rotating sleeve 701 cooperates with the lock block 111 through the fourth spring 10. The lock core 501 is installed in the lock core sleeve 14. The lock core 501 is also provided with a block 504, and the lock core sleeve 14 is provided with a groove 505. The block 504 cooperates with the groove 505. The torsion plate 601 is also provided with a first spring 604, and the other end of the first spring 604 is fixed to the bottom of the positioning hole 305 in the torsion sleeve 301. The torsion sleeve 301 is also provided with a blind hole 304, and the torsion sleeve 301 is passed through The pin installed in the blind hole 304 slides along the third through groove 703, a positioning hole 305 is provided at one end of the torsion sleeve 301, one end of the third spring 9 is installed in the positioning hole 305, one end of the locking block 111 is provided with a positioning sleeve 113, one end of the fourth spring 10 is sleeved on the positioning sleeve 113, and the other end of the locking block 111 fixes the lock tongue 4 to the locking block 111 through a screw 12. A cylindrical pin 112 is also installed on the locking block 111, and the cylindrical pin 112 can slide along the cam groove 704. A positioning sleeve 113 is sleeved on the rotating sleeve 701, and a positioning stop is provided on the positioning sleeve 113, and the positioning stop is located at the highest point of the cam groove 704.

[0029] Specific working process: The first step of the unlocking process is that when the unlocking key is inserted into the keyhole, the lock chips are arranged neatly, and the fixation between the lock core and the lock sleeve is released. During the process of rotating the key 90° counterclockwise, the rotating block on the lock core drives the torsion plate to rotate through the transverse groove, and then the torsion block on the torsion plate drives the wedge block on the balancing block to compress the second spring on the positioning shaft, and the second protrusion on the balancing block slides along the sliding groove on the torsion sleeve. When the first protrusion drops into the second through groove, the fixation between the torsion sleeve and the rotating sleeve is released, and the third spring in the compressed state is reset while sliding the torsion sleeve out along the third through groove on the rotating sleeve.

[0030] The second step of unlocking is to rotate the twist sleeve 180° counterclockwise. The sleeve rotates together with the sleeve under the action of the pin. The rotation of the sleeve will drive the cylindrical pin on the lock block to rotate and extend outward through the cam groove, and the hatch is opened. At this time, the fourth spring is reset.

[0031] Locking process: When rotating the torque sleeve 180° clockwise, the rotating sleeve rotates with the torque sleeve under the action of the pin. The rotation of the rotating sleeve will drive the cylindrical pin on the lock block to rotate through the cam groove, and the fourth spring will be compressed. At this time, you only need to compress the torque sleeve inward by hand. After the balance block returns to the second through-slot position, it will be reset under the action of the second spring to fix the torque sleeve and the rotating sleeve again. At the same time, the reset of the wedge block drives the reset of the torque disk and then drives the reset of the lock core. At the same time, the key also automatically resets with the lock core. The locking is completed and the key can be directly pulled out without rotating it.

[0032] If the unlocking key is lost, you only need to replace the lock core, and there is no need to spend a lot of money to buy a new lock. Remove the lock core and insert the core replacement key. At this time, the core replacement key will lift the core replacement chip, and the four first springs will bounce up the torsion plate, so that the torsion plate will be separated from the balance block, and the lock core will be bounced up by the torsion plate. Turn the lock core 90° counterclockwise. At this time, the convex block of the lock core coincides with the groove of the lock sleeve. There is no need to disassemble the subsequent structure. Just take out the lock core, then insert the new lock core, and turn it 90° clockwise. At this time, the turning block on the lock core coincides with the horizontal groove on the torsion plate. Gently press the lock core and pull out the key to complete the core replacement.

[0033] Since the torsion sleeve needs to be frequently bounced up and rotated, the lock cylinder sleeve and the torsion sleeve of the traditional lock are connected by glue. In order to make the lock cylinder sleeve separate from the torsion sleeve, the present invention adopts an elastic pin connection, which is more durable. At the same time, the balancing mechanism adopts a double balancing block structure compared to the traditional single balancing block structure, which is more stable to use.

Claims

1. A door lock, characterized in that: The invention comprises a lock core (501), a clutch mechanism, a balancing mechanism, a torsion sleeve (301), a rotating sleeve (701) and a lock block (111). A rotating block (503) is arranged at one end of the lock core (501). The clutch mechanism is composed of a torsion plate (601) and a first spring (604). A transverse groove (602) is arranged at one end of the torsion plate (601), and a torsion block (603) is arranged at the other end. The balancing mechanism is composed of a plurality of balancing blocks (801) and a second spring (802). A first convex block (803), a second convex block (805), a wedge block (806) and a positioning shaft (804) are arranged on the balancing block (801). Two ends of the second spring (802) are respectively positioned on the positioning shaft (804). The wedge block (806) is connected to the positioning shaft (804). The twist block (603) cooperates with the twist sleeve (301), the twist sleeve (301) is provided with a first through slot (302) and a slide slot (303), the rotating sleeve (701) is provided with a second through slot (702), a third through slot (703) and a cam slot (704), the twist sleeve (301) is installed inside the rotating sleeve (701), the second protrusion (805) cooperates with the slide slot (303), the first protrusion (803) cooperates with the first through slot (302), the first protrusion (803) also cooperates with the second through slot (702), the twist sleeve (301) cooperates with the rotating sleeve (701) through a third spring (9), and the rotating sleeve (701) cooperates with the locking block (111) through a fourth spring (10).

2. A hatch door lock according to claim 1, characterized in that: The lock core (501) is installed in a lock core sleeve (14). A clamping block (504) is also provided on the lock core (501). A groove (505) is provided on the lock core sleeve (14). The clamping block (504) matches the groove (505).

3. A hatch door lock according to claim 1 or 2, characterized in that: The lock core (501) comprises a lock core (502) and a core changer (507).

4. A hatch door lock according to claim 1, characterized in that: There are two types of keys (1) for unlocking the lock core (501).

5. A hatch door lock according to claim 1, characterized in that: One end of the torsion sleeve (301) is provided with a positioning hole (305), and one end of the third spring (9) is installed in the positioning hole (305).

6. A hatch door lock according to claim 5, characterized in that: The other end of the first spring (604) on the torsion plate (601) is fixed to the bottom of the positioning hole (305).

7. A hatch door lock according to claim 1, characterized in that: The torsion sleeve (301) is also provided with a blind hole (304), and the torsion sleeve (301) slides along the third through groove (703) via a pin installed in the blind hole (304).

8. A hatch door lock according to claim 1, characterized in that: A positioning sleeve (113) is provided at one end of the locking block (111), and one end of the fourth spring (10) is sleeved on the positioning sleeve (113).

9. A hatch door lock according to claim 1, characterized in that: The other end of the locking block (111) fixes the locking tongue (4) to the locking block (111) via a screw (12).

10. A hatch door lock according to claim 1, characterized in that: A cylindrical pin (112) is also mounted on the locking block (111), and the cylindrical pin (112) can slide along the cam groove (704).

11. A hatch door lock according to claim 1, characterized in that: The rotating sleeve (701) is sleeved with a clamping sleeve (131), and the clamping sleeve (131) is provided with a stopper (132), and the stopper (132) is located at the highest point of the cam groove (704).

12. A hatch door lock according to claim 1 or 2, characterized in that: The torsion sleeve (301) and the lock core sleeve (14) are connected via an elastic pin.

Images