Lock catch structure

Abstract

The utility model provides a lock catch structure, and belongs to the technical field of vehicle locks. Comprising a shell, an inner handle, an outer handle assembly, a lock cylinder assembly, a lock catch and an external lock catch, the outer handle assembly and the inner handle are installed on the outer side faces of the front side and the rear side of the shell respectively, the external lock catch is installed on the side, corresponding to the lock catch, of the shell, one end of the outer handle assembly is connected with a shell shaft, the other end of the outer handle assembly is a wrenching end, and a cross arm is arranged on the inner side of the wrenching end; a linkage mechanism is mounted in the shell; the lock catch comprises a spring bolt, the spring bolt is connected with the linkage mechanism, and the cross arm applies force to the connecting position of a crank arm of the linkage mechanism. When the external lock catch is unlocked, the pulling end of the external handle assembly is pulled outwards, the cross arm exerts force on the connecting position of the crank arm of the linkage mechanism, the spring bolt is driven to retract into the external lock catch to complete unlocking, and otherwise, the pulling end of the external handle assembly is reset, the spring bolt is elastically reset and stretches out of the external lock catch. According to the house vehicle lock, internal and external control is achieved, maximum deformation under low force is achieved, and the unlocking and locking processes correspond rapidly and conveniently.

Description

Technical Field

[0001] The present application relates to a lock structure, belonging to the technical field of vehicle locks. Background Art

[0002] Latch assemblies are widely used in current RVs and other equipment. Generally, latch assemblies are installed on RV components such as doors and windows to achieve the effect of opening and locking. Especially for RVs, latch assemblies are required to be operated not only inside the vehicle but also outside the vehicle.

[0003] A common implementation method (such as US2019 / 0316391A1) is to set a rotatable inner handle 92 inside and an outer handle assembly 82 that can be pulled at one end outside, the inner handle 92 is connected to a rotating cam 134, and the outer handle assembly 82 is provided with a handle cam 124, and the rotating cam 134 and the handle cam 124 respectively abut against the surface 108 of the plunger cam 102. When operating inside the vehicle, the rotating cam 134 is rotated to push the inner plunger to move relative to the plunger cam 102, thereby driving the door latch 52 to move relative to realize internal door opening or locking; when operating outside the vehicle, the outer handle assembly 82 is pulled to drive the handle cam 124 to move relative to the plunger cam 102, thereby driving the door latch 52 to move relative to realize external door opening or locking.

[0004] This method solves the problem of internal and external operation very well, but we found that it still has many defects in use, such as: the contact surface between the embolization cam 102 and the handle cam 124 is an inclined surface (see Figure 6 , Figure 7 ), the plunger cam surface 108 is parallel to and slides on the cam surface 126, and the two exert force in a surface contact manner, and a long path is required to achieve effective displacement of the latch 52 in the opening and closing direction, which makes the operation difficult and laborious. Utility Model Content

[0005] In view of this, the present application provides a locking structure, which not only realizes operation inside and outside the vehicle, but also realizes point force traction during the operation process, making the operation quick and lightweight.

[0006] Specifically, the present application is implemented through the following scheme:

[0007] A locking structure,

[0008] The lock structure is installed in the housing, and an external lock is provided on one side of the housing corresponding to the lock structure, which is characterized by:

[0009] The lock structure comprises a lock latch and a lock tongue.

[0010] The lock tongue includes a lock head, a first connecting block and a second connecting block. The lock head is located near the side of the external lock buckle. The first connecting block cooperates with the lock bolt, and the second connecting block is connected to the external handle assembly.

[0011] The lock latch is connected to the lock core assembly, the lock latch is provided with a first inclined surface, the first connecting block is provided with a second inclined surface, and the first inclined surface and the second inclined surface form an inclined surface groove.

[0012] A card block is arranged in the housing, and the card block is mounted in the inclined groove.

[0013] The lock core assembly rotates, driving the lock bolt to move, realizing the opening and locking of the lock bolt.

[0014] When the outer handle assembly is pulled, the outer handle assembly pulls the lock tongue back to the inside of the external lock buckle to complete the unlocking. Conversely, the outer handle assembly is reset, and the lock tongue is elastically reset and extends out of the external lock buckle.

[0015] Further, as a preference:

[0016] The first inclined surface and the second inclined surface are parallel to each other.

[0017] The upper and lower surfaces of the block are parallel to the first inclined surface and the second inclined surface respectively.

[0018] The housing is provided with a limit block, the first connecting block is sleeved with an elastic body, and the elastic body is located between the limit block and the lock head.

[0019] The lock core assembly is provided with a connecting sleeve, one end of the connecting rod is eccentrically connected to the connecting sleeve, and the other end is connected to the latch. More preferably, a key capable of rotating the lock core assembly is provided on the outer side of the housing to realize external unlocking and locking of the latch.

[0020] The lock latch and the lock tongue are both laterally displaced.

[0021] The electronic lock area is also included, and the electronic lock area controls the rotation of the lock core assembly in the form of an electronic lock to realize the opening and locking of the lock bolt. More preferably, the electronic lock in the electronic lock area is a key lock, an induction lock or a fingerprint lock.

[0022] In the above solution, one end of the outer handle assembly is connected to the housing shaft, and the other end is a pull end, which is connected to the second connecting block. More preferably:

[0023] A linkage mechanism is arranged between the pulling end and the second connecting block, and the linkage mechanism includes a rear curved arm and a front curved arm, one end of the rear curved arm is axially connected to the shell, the other end of the rear curved arm is connected to one end of the front curved arm through a latch, and the other end of the front curved arm is connected to the lock tongue shaft. A transverse arm is arranged on the inner side of the pulling end, and the transverse arm applies force to the latch pin connection; when the pulling end is pulled outward, the transverse arm applies force to the latch pin connection, driving the lock tongue to retract into the inside of the external lock buckle.

[0024] The horizontal arm is provided with a first closed opening which penetrates in a vertical direction, and the shape trajectory of the first opening is the displacement trajectory of the latch during the linkage process.

[0025] The cross arm is also provided with a second opening, which runs through the cross arm transversely. The rear curved arm and the front curved arm extend from both sides of the second opening to form an overlap. The latch is vertically inserted into the first opening to pin the overlapped portion of the rear curved arm and the front curved arm.

[0026] The rear curved arm and / or the front curved arm are composed of multiple sections of rods, and adjacent sections are located on different planes.

[0027] The end of the front curved arm is provided with a connecting groove, and the locking tongue is connected to the front curved arm through the connecting groove.

[0028] The pull end is provided with a vertical arm, a limiting hole is provided on the vertical arm, a positioning pin is provided in the shell body, and the positioning pin passes through the limiting hole to achieve the limiting of the pull end.

[0029] In the above solution, the housing is provided with an inner handle, which is located on the inner side of the housing opposite to the outer handle assembly, the first connecting block is provided with a slot, a lever is provided at a position corresponding to the slot on the inner handle, and the lever is inserted into and abuts against the slot to realize the movable connection between the inner handle and the lock tongue. More preferred:

[0030] The inner handle is connected to the housing via an axis.

[0031] A torsion spring is sleeved on the connecting shaft between the inner handle and the shell.

[0032] In the lock buckle structure set up above, the first inclined surface and the second inclined surface form an inclined surface groove, and the card block is mounted in the inclined surface groove, and cooperates with the lock core assembly and the outer handle assembly / inner handle to make the lock tongue respond faster relative to the lock latch, thereby reducing the difficulty and strength of operation. The outer handle assembly and the lock tongue are connected by a linkage mechanism. With the help of the cooperation between the cross arm and the connection with the curved arm of the linkage mechanism, the pulling end of the outer handle assembly and the linkage mechanism form point contact when operated, thereby ensuring that the lock tongue can respond faster and more labor-savingly relative to the lock latch, thereby reducing the difficulty and strength of operation. The special setting of the lock buckle enables it to realize the unlocking and locking of the RV lock in the process of cooperating with the lever, the card block and the limit block. The setting of each elastic member realizes the resetting of the components that have completed the corresponding action during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the lock structure in the locked state in this application;

[0034] Figure 2 for Figure 1 Stereoscopic cross-section in the middle AA direction;

[0035] Figure 3 for Figure 1 The cross-section in the middle AA direction is anthropomorphic;

[0036] Figure 4 for Figure 1 Another perspective stereogram of the section in the middle AA direction;

[0037] Figure 5 It is a cross-sectional stereoscopic view of the lock structure and linkage mechanism of the present application in the locked state;

[0038] Figure 6 It is a cross-sectional front view of the lock structure and linkage mechanism of the present application in the locked state;

[0039] Figure 7 It is a schematic diagram of the three-dimensional structure of the shell in this application;

[0040] Figure 8 This is a schematic diagram of the structure of the external handle assembly in this application;

[0041] Fig. 9 This is a schematic diagram of the three-dimensional structure of the internal control panel seat in this application;

[0042] Fig.10 This is a schematic diagram of the three-dimensional structure of the inner control panel seat from another perspective in this application;

[0043] Fig.11 This is a schematic diagram of the front structure of the internal control panel seat in this application;

[0044] Fig.12 This is a schematic diagram of the structure of the lock structure in the unlocked state in this application;

[0045] Fig.13 for Fig.12 Stereoscopic cross-section in the middle BB direction;

[0046] Fig.14 for Fig.12 The cross-section in the middle BB direction is anthropomorphic;

[0047] Fig.15 for Fig.12 Another perspective stereogram of the section in the middle BB direction;

[0048] Fig.16 It is a cross-sectional stereoscopic view of the lock structure and linkage mechanism of the present application in the unlocked state;

[0049] Fig.17 It is a cross-sectional front view of the lock structure and linkage mechanism of the present application in the unlocked state.

[0050] Numbers in the figure: 1. External handle assembly; 11. Connecting end; 12. Pulling end; 13. Screw; 14. Limiting hole; 15. Vertical arm; 16. Horizontal arm; 161. First opening; 162. Second opening; 2. Housing; 21. External control panel seat; 211. Knurled pin; 212. Sealing gasket; 22. Internal control panel seat; 221. Knob; 222. Gasket; 23. Shaft retaining ring; 24. Locking end; 3. Key; 31. Lock core assembly; 32. Connecting rod; 33. Connecting sleeve; 4. Lock structure; 41. Lock bolt; 411. First inclined surface; 42. Block; 421. Connecting block; 43. Lock tongue; 431. Second inclined surface; 432. Slot; 433. Lock head; 434. First connecting block; 435. Second connecting block; 436. First elastic member; 5. Linkage mechanism; 51. Rear curved arm; 511. First section of the rod; 512. Second section of the rod; 52. Front curved arm; 521. Connecting slot; 53. First mounting axis; 54. Latch; 55. Second mounting axis; 6. Inner handle; 61. Push rod; 62. Grasping slot; 63. Inner handle axis; 64. Inner handle torsion spring; 7. Inner plate; 71. Opening; 72. Positioning pin; 73. Limiting block; 74. Second elastic member; 8. External lock buckle; 9. Electronic lock area; 91. Button; 92. Sensor sheet. DETAILED DESCRIPTION

[0051] The technical solution of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0052] This embodiment is a locking structure, combined with Figure 1 , including a latch 41 and a lock tongue 43, the lock tongue 43 includes a lock head 433, a first connecting block 434 and a second connecting block 435, the lock head 433 is located on the side close to the external lock buckle 8, the first connecting block 434 cooperates with the latch 41, and the second connecting block 435 is connected to the external handle assembly 1; the latch 41 is connected to the lock core assembly 31, the latch 41 is provided with a first inclined surface 411, the first connecting block 434 is provided with a second inclined surface 431, and the first inclined surface 411 and the second inclined surface 431 form an inclined surface groove.

[0053] The components that cooperate with the lock structure 4 of this case also include the outer handle assembly 1, the housing 2, the lock core assembly 31, the lock structure 4, the linkage mechanism 5, the inner handle 6, the inner plate 7 and the outer lock 8. The outer lock 8 is installed on the side of the housing 2 and is provided with a lock opening that allows the lock structure 4 to move. Specifically:

[0054] Combination Figure 7-Figure 8 The housing 2 includes an outer control panel seat 21 and an inner control panel seat 22 . A sealing gasket 212 is disposed inside the outer control panel seat 21 , and a receiving cavity is formed between the outer control panel seat 21 and the inner control panel seat 22 .

[0055] A connecting end 11 is provided at the lower part of the outer handle assembly 1, and the connecting end 11 is installed on the vehicle wall of the outer control panel seat 21 facing the outside of the vehicle through a knurled pin 211. A torsion spring can be mounted on the knurled pin 211 as needed.

[0056] The upper part of the outer handle assembly 1 is provided with a pull end 12, which is combined with Figure 3 A horizontal arm 16 is provided inside the pull end 12 and is installed by screws 13. The horizontal arm 16 is a square structure, and is vertically slotted to form a first opening 161, and horizontally slotted to form a second opening 162. A vertical arm 15 is provided at one end of the horizontal arm 16 protruding from the outer handle assembly 1, and a limiting hole 14 is provided on the vertical arm 15.

[0057] The part of the outer control panel seat 21 located above the outer handle assembly 1 is the locking end 24, and a lock hole used in conjunction with the key 3 is provided on the locking end 24. A lock core assembly 31 is installed on the inner side of the outer handle assembly 1 corresponding to the lock hole, and the lock core assembly 31 is connected to a connecting rod 32 through a connecting sleeve 33. The other end of the connecting rod 32 is connected to the latch 41. When the key 3 is turned, the connecting sleeve 33 is driven to rotate through the lock core assembly 31, and the connecting rod 32 is pulled along with the eccentric rotation of the connecting sleeve 33, and the latch 41 is also pulled accordingly. Therefore, the rotation of the key controls the entry and exit of the latch 41.

[0058] Combination Fig.11 Holes are opened at positions corresponding to the inner control panel seat 22 and the lock core assembly 31 , and the knob 221 is connected to the lock core assembly 31 through a gasket 222 and a peripheral retaining ring 23 .

[0059] Combination Fig. 9 , Fig.10 An inner handle shaft 63 is provided on the side of the inner control panel seat 21, and a lever 61 is provided on the inner side of the inner handle 6, and the lever 61 is inserted and abutted against the lock tongue 43. The inner handle 6 is pinned to the inner control panel seat 22 through the inner handle shaft 63, and the inner handle 6 can rotate inward and outward around the inner handle shaft 63. An inner handle torsion spring 64 is mounted on the inner handle shaft 63 for easy resetting. A grabbing groove 62 is provided on the inner handle 6 for easy grabbing when opening and closing the door. When the operator grabs the inner handle 6 through the grabbing groove 62 and pulls it outward (relative to the RV, force is applied toward the inside of the RV), the inner handle 6 rotates around the inner handle shaft 63, driving the lever 61 to rotate in the direction of the lock tongue 43 retracting, and the lock tongue 43 is forced to retract by the lever 61 to achieve unlocking.

[0060] The arrangement of the inner control panel seat 22, the inner handle 6 and the knob 221 enables the opening and locking of the inner locking structure.

[0061] Combination Figure 1 , Figure 2 , Figure 5The inner plate 7 is installed on the inner side of the inner control panel seat 22, that is, in the accommodating cavity formed between the outer control panel seat 21 and the inner control panel seat 22, facing the outer control panel seat 21. The inner plate 7 is fixed with a positioning pin 72, a limiting block 73 and a connecting block 421. The positioning pin 72 is arranged corresponding to the limiting hole 14. The positioning pin 72 is sleeved with a second elastic member 74, one end of which is fixed to the inner plate 7 and the other end is a movable end; the connecting block 421 is provided with a clamping block 42; an opening 71 is provided on the inner plate 7 at a position corresponding to the lever 61, so that the lever 61 can pass through the opening 71 to cooperate with other components.

[0062] Combination Figure 5 The linkage mechanism 5 includes a rear curved arm 51 and a front curved arm 52. One end of the rear curved arm 51 is fixedly pinned to the inner plate 7 through a first mounting shaft 53, and the other end of the rear curved arm 51 penetrates into the second opening 162 in the horizontal direction of the cross arm 16. One end of the rear curved arm 51 extends into the second opening 162 and is pinned to the front curved arm 52 through a latch 54. The latch 54 penetrates the first opening 161 in the vertical direction of the cross arm 16 and is perpendicular to the rear curved arm 51 and the front curved arm 52. The other end of the front curved arm 52 is connected to the locking tongue 43 and is installed in the connecting groove 521 together with the locking tongue 43, as shown in FIG. Fig.12 shown.

[0063] When the lock tongue 43 is extended and in the locked state, the rear curved arm 51, the front curved arm 52, and the lock tongue 43 are in a horizontal stretched state, roughly forming a straight line. When the outer handle assembly 1 is pulled outward, the cross arm 16 moves outward with the outer handle assembly 1, and the latch 54 that runs through the first opening 161 is pulled outward along with it. The rear curved arm 51 rotates around the fixed position of the inner plate 7, and the front curved arm 52 rotates around the latch 54 point, and is pulled inward by the rear curved arm 51 at the same time, so that the rear curved arm 51 and the front curved arm 52 form an angle at the new position of the latch 4. The lock tongue 43 moves inward along with the front curved arm 52, and also moves inward in the connecting groove 521, and the lock tongue 43 retracts to achieve unlocking. When the external force of the outer handle assembly 1 is removed, the lock tongue 43 rebounds and resets through the first elastic member 436, such as a spring. Therefore, the lock tongue extends again and returns to the locked state. In the linkage mechanism of the present patent application, the force of the outer handle assembly 1 is concentrated on the latch 54, and the movement of the latch 54 drives the extension and contraction of the crank arm, so that the unlocking can be done with a small force, and the force transmission is easy and convenient, and the operation is convenient.

[0064] The lock structure 4 is used in conjunction with the external lock 8. Figure 1 , Figure 5 , Figure 6, including a latch 41 and a lock tongue 43. The latch 41 is located above the lock tongue 43. The latch 41 is connected to the lock core assembly 31 through a connecting rod 32. The latch 41 is provided with a first inclined surface 411. The lock tongue 43 is generally an integrated structure, including a lock head 433, a first connecting block 434 and a second connecting block 435. The lock head 433 is a tongue part that cooperates with the external lock buckle 8 and extends out of the lock port of the lock buckle 8. The lock head 433 is formed with a first connecting block 434 and a second connecting block 435 on the side close to the linkage mechanism 5. The first connecting block 434 is located above the second connecting block 435. The second inclined surface 431 and a slot 432 are provided on the first connecting block 434. The lever 61 of the inner handle 6 is inserted into the middle slot 432. When the lever 61 moves, the force is applied to the inner wall of the slot 432, driving the entire lock tongue 43 to move, thereby realizing the linkage between the lever 61 and the lock tongue 43. The second inclined surface 431 is arranged corresponding to the first inclined surface 411 of the latch 41, and the two inclined surfaces are parallel. The clamping block 42 is clamped in the area between the first inclined surface 411 and the second inclined surface 431. The shape of the clamping block 42 matches the first inclined surface 411 and the second inclined surface 431, and the upper and lower surfaces are also inclined surfaces parallel to the first inclined surface 411 and the second inclined surface 431, so a diamond structure can be formed. When the lock tongue 43 and the latch 41 are at the same extension relative to the external lock buckle 8, the first inclined surface 411 on the first connecting block 434 and the second inclined surface 431 of the first connecting block 434 are just fitted on the upper and lower surfaces of the clamping block 42, so the lock tongue 43 cannot be retracted alone due to the pressure of the inclined surface. When the latch 41 is rotated and pulled back by the lock core assembly 31, the contact surface on the block 42 disappears, so that the block 42 has a certain activity space. At this time, when the lock tongue 43 is pulled back by the linkage mechanism, it can be free from the activity space and retract with the block 42. This is the locking principle of the latch 41. On the contrary, when the latch 41 returns to its original position, the block 42 is in the restricted space again, and the lock tongue 43 cannot be freely extended or retracted.

[0065] The second connecting block 435 of the locking tongue 43 is located below the first connecting block 434. The second connecting block 435 is connected to the front curved arm 52 at the connecting groove 521 through the second mounting shaft 55. The second connecting block 435 is provided with a first elastic body 436 which may be in the form of a spring. The first elastic body 436 is located between the lock head 433 and the limit block 73 and is used for the rebound reset of the locking tongue 43.

[0066] The lock structure of the present application is applied to a motorhome to form a motorhome lock. When the motorhome lock is in a locked state, each component such as Figures 1 to 6 As shown: the first inclined surface 411 and the second inclined surface 431 form a diamond-shaped accommodating cavity, the clamping block 42 is clamped in the diamond-shaped accommodating cavity, the second connecting block 435, the rear curved arm 51 and the front curved arm 52 are basically on the same straight line, the latch 54 is located in a position forward of the first opening 161, the first elastic body 436 on the second connecting block 435 is in an uncompressed deformation state, and the latch 41 and the lock head 43 both protrude outside the lock port of the external lock buckle 8.

[0067] When operating outdoors, the key 3 is rotated counterclockwise, the lock core assembly 31 rotates, driving the connecting sleeve 33 installed thereon to rotate accordingly, pulling the connecting rod 32 to move toward the lock core assembly 31, and pulling the latch 41 connected to the connecting rod 32 to move in the same direction, the latch 41 is retracted into the inner side of the external lock buckle 8, and at the same time, the diamond-shaped accommodating cavity between the first inclined surface 411 and the second inclined surface 431 is destroyed, the block 42 is no longer in a stuck state, and a certain displacement space is obtained; at this time, the outer handle assembly 1 is pulled outward, and the connecting end of the outer handle assembly 1 11 rotates around the mounting axis, the pulling end 12 of the outer handle assembly 1 drives the cross arm 16 to move outward, and the latch 54 in the first opening 161 moves outward, so that the ends of the rear curved arm 51 and the front curved arm 52 connected to the latch 54 are pulled outward by the cross arm 16, and an angle is formed between the rear curved arm 51 and the front curved arm 52. The front curved arm 52 pulls the second connecting block 435 to move toward the second opening 162, and the lock head 433 and the first connecting block 434 move synchronously with the second connecting block 435. The lock head 433 is also retracted into the inner side of the external lock buckle 8. Figures 12 to 17 In the open state, the RV door can be opened by pushing the door. The first elastic body 436 mounted on the second connecting block 435 cannot be synchronously displaced due to the restriction of the limiting block 73, and can only be compressed and deformed.

[0068] When the outer handle assembly 1 is reset, the first opening 161 provides a movable space for the latch 54, and the first elastic body 436 is no longer subjected to force. Since the rear curved arm 51 is axially connected to the inner plate 7, the contraction deformation of the first elastic body 436 is restored, and the deformation recovery effect pushes the second connecting block 435 to move away from the second opening 162, and the rear curved arm 51 and the front curved arm 52 are stretched until the lock head 433 extends out of the lock port of the external lock buckle 8. At the same time, the connecting end 11 of the outer handle assembly 1 can also return to its original position with the help of the torsion spring. Therefore, the first opening 161 of the cross arm 16 is set to a certain opening space to give the latch 54 a certain restoring movable space.

[0069] Since the first opening 161 on the cross arm 16 cooperates with the latch 54 to achieve force transmission in a point contact manner, only a slight force is needed to change the locking state of the door lock. Compared with the existing surface contact control method, both the force application degree and the response speed are lighter and faster.

[0070] When locking the RV door from the outside, the key 3 is rotated clockwise. At this time, the lock core assembly 31 rotates accordingly, and the connecting rod 32 is pushed to move through the connecting sleeve 33. The latch 41 moves in the same direction as the connecting rod 32, and the first inclined surface 411 moves toward the external lock buckle 8 until the latch 41 protrudes out of the lock port of the external lock buckle 8, and the latch 41 and the lock tongue 43 return to the locked position. Figures 1 to 6 Lock status shown.

[0071] Similarly, when operating indoors, the knob 221 plays the role of the key 3, and the knob 221 rotates counterclockwise, driving the lock core assembly 31 to rotate, and the connecting sleeve 33 and the connecting rod 32 drive the lock bolt 41 to move synchronously, and the lock bolt 41 retracts to the inside of the external lock buckle 8, and the locking state between the first inclined surface 411 and the second inclined surface 431 and the block 42 is released. At this time, the inner handle 6 is pulled, and the inner handle 6 rotates with the inner handle shaft 63. At the same time, the lever 61 presses against the card slot 432 to drive the first connecting block 434 to move, and the lock tongue 43 moves synchronously therewith, until the lock tongue 43 is also retracted to the inside of the external lock buckle 8, and the first elastic body 436 is in a contracted state, and the locking state between the RV door and the vehicle body is completely released, and the door where the RV lock is located can be opened from the outside. When the lever 61 of the inner handle 6 swings the lock tongue 43 to retract, the second connecting block 435 drives the front curved arm 52 to move inward, so that the front curved arm 52 forms a certain rotation around the latch 54, and at the same time, the rear curved arm 51 rotates around the fixed part of the inner plate 7, and an angle is formed between the rear curved arm 51 and the front curved arm 52. The linkage mechanism also acts to ensure that the lock tongue 43 is retracted into the outer lock buckle 8. At this time, the opening space of the first opening 161 provides sufficient space for the movement of the latch 54 to prevent it from getting stuck. Similarly, the force applied by the lever 61 of the inner handle 6 is also a point contact force, which produces the maximum deformation under a smaller force.

[0072] When the inner handle 6 is released, the inner handle 6 automatically resets under the action of the inner handle torsion spring 64, and the lever 61 no longer applies force to the slot 432. During the recovery deformation of the first elastic body 436, the second connecting block 435 is pushed to move, and the lock head 433 moves to the outside of the external lock buckle 8 until the lock head 433 protrudes outside the lock opening of the external lock buckle 8. At this time, the lock tongue 43 returns to the locked state. The knob 221 is rotated to push the lock bolt 41 to move to the outside of the external lock buckle 8 through the lock core assembly 31, the connecting sleeve 33 and the connecting rod 32 until the lock bolt 41 protrudes outside the lock opening of the external lock buckle 8. At this time, the entire RV lock returns to the locked state.

[0073] When the present invention is used for locking a motorhome, double-layer locking of the motorhome lock can be achieved, i.e., the first layer of locking by the lock tongue 43 and the second layer of locking by the lock latch 41. In the first layer of locking, the inclined surface and the block 42 of the lock latch 41 do not play a restrictive role, so as long as the outer handle assembly 1 or the inner handle 6 is operated, the lock of the lock tongue 43 can be released. When the second layer of locking is performed, the two inclined surfaces and the block 42 play a role in limiting the movement, and the lock tongue 43 cannot move at will, so double locking is achieved. Only after the second layer of locking is released can the first layer of locking be released.

[0074] In the solution of the present application, the first opening 161 and the second opening 162 are provided so that the linkage mechanism 5 can be displaced within the range defined by the first opening 161 and the second opening 162, which not only provides the linkage mechanism 5 with room for movement, but also avoids the outer handle assembly 1 and the linkage mechanism 5 from being stuck.

[0075] In addition, the positioning pin 72 is correspondingly arranged with the pull end 12, and a second elastic member 74 is arranged thereon, which facilitates the reset of the pull end 12, and realizes the automatic reset of the pull end 11 of the outer handle assembly 1 when no force is applied. The second elastic member 74 can be a spring. At the same time, the positioning pin 72 is connected to the vertical arm 15 through the elliptical limiting hole 14, ensuring that the pull end 11 of the outer handle assembly 1 is not subjected to excessive force, causing damage to the entire RV lock structure.

[0076] The horizontal arm 16 is fixedly connected to the pull end 12 by means of screws 17, so as to achieve synchronous displacement of the horizontal arm 16 and the pull end 12. The vertical arm 15 and the horizontal arm 16 can be provided separately and connected by fasteners, or can be provided as an integrated structure.

[0077] The rear curved arm 51 and the front curved arm 52 can both adopt a multi-section structure, and adjacent sections can be located on different planes. Figure 7 For example, the rear curved arm 51 can adopt a two-stage structure, that is, it is composed of a first section rod 511 and a second section rod 512 of an integrated structure. The first section rod 511 adopts a horizontal structure to facilitate the installation of the first installation shaft 53. The second section rod 512 is transitionally connected to the first section rod 511 through a smooth slope, so that the second section rod 512 is slightly higher than the first section rod 511, which is convenient for its connection with the front curved arm 52 and the cross arm 16. The front curved arm 52 can adopt a similar structure. The multi-stage structure can achieve more convenient installation in a limited space.

[0078] A connecting groove 521 is provided at one end of the front curved arm 52 facing the second connecting block 435, and the end of the second connecting block 435 is formed into a shape that can be inserted into the connecting groove 521. When the front curved arm 52 and the second connecting block 435 are inserted through the connecting groove 521, the two are conveniently pinned together to form a joint rotation.

[0079] A gripping groove 62 is provided on the inner handle 6 . When a hand passes through the gripping groove 62 , the inner handle 6 can be driven to rotate relative to the mounting shaft, making it convenient for the hand to grip and apply force to the inner handle 6 .

[0080] The RV lock including the above-mentioned lock structure can realize opening and closing operations on both the inside and outside sides. The point contact force between the cross arm 16 and the latch 54, and the point contact force between the lever 61 and the slot 432, all give the entire control process a faster and lighter response, reduce the difficulty and strength of operation, and realize the resetting of the components that have completed the corresponding action during the operation.

[0081] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A lock buckle structure, the lock buckle structure is installed in a housing, and an external lock buckle is provided on one side of the housing corresponding to the lock buckle structure, characterized in that: The lock structure comprises a lock latch and a lock tongue. The lock tongue comprises a lock head, a first connecting block and a second connecting block. The lock head is located near the side of the external lock buckle. The first connecting block cooperates with the lock bolt, and the second connecting block is connected to the external handle assembly. The lock latch is connected to the lock core assembly, the lock latch is provided with a first inclined surface, the first connecting block is provided with a second inclined surface, and the first inclined surface and the second inclined surface form an inclined surface groove. A card block is arranged in the housing, and the card block is mounted in the inclined groove. The lock core assembly rotates, driving the lock bolt to move, realizing the opening and locking of the lock bolt. When the outer handle assembly is pulled, the outer handle assembly pulls the lock tongue back to the inside of the external lock buckle to complete the unlocking. Conversely, the outer handle assembly is reset, and the lock tongue is elastically reset and extends out of the external lock buckle.

2. A locking structure according to claim 1, characterized in that: The first inclined surface and the second inclined surface are parallel to each other.

3. A locking structure according to claim 1, characterized in that: The upper and lower surfaces of the block are parallel to the first inclined surface and the second inclined surface respectively.

4. A locking structure according to claim 1, characterized in that: The housing is provided with a limit block, the first connecting block is sleeved with an elastic body, and the elastic body is located between the limit block and the lock head.

5. A locking structure according to claim 1, characterized in that: A connecting sleeve is installed on the lock core assembly, one end of the connecting rod is eccentrically connected to the connecting sleeve, and the other end is connected to the lock bolt.

6. A locking structure according to claim 5, characterized in that: A key capable of rotating the lock core assembly is arranged on the outer side of the shell to realize external opening and locking of the lock bolt.

7. A locking structure according to claim 1, characterized in that: The lock latch and the lock tongue are both laterally displaced.

8. A locking structure according to claim 1, characterized in that: The electronic lock area is also included, and the electronic lock area controls the rotation of the lock core component in the form of an electronic lock to realize the opening and locking of the lock bolt.

9. A locking structure according to claim 8, characterized in that: The electronic lock in the electronic lock area is a key lock, an induction lock or a fingerprint lock.

10. A lock structure according to any one of claims 1 to 9, characterized in that: One end of the outer handle assembly is connected to the housing shaft, and the other end is a pull end, which is connected to the second connecting block.

11. A locking structure according to claim 10, characterized in that: A linkage mechanism is arranged between the pulling end and the second connecting block, and the linkage mechanism includes a rear curved arm and a front curved arm, one end of the rear curved arm is axially connected to the shell, the other end of the rear curved arm is connected to one end of the front curved arm through a latch, and the other end of the front curved arm is connected to the lock tongue shaft. A transverse arm is arranged on the inner side of the pulling end, and the transverse arm applies force to the latch pin connection; when the pulling end is pulled outward, the transverse arm applies force to the latch pin connection, driving the lock tongue to retract into the inside of the external lock buckle.

12. A locking structure according to claim 11, characterized in that: The horizontal arm is provided with a first closed opening which penetrates in a vertical direction, and the shape trajectory of the first opening is the displacement trajectory of the latch during the linkage process.

13. A locking structure according to claim 11, characterized in that: The cross arm is also provided with a second opening, which runs through the cross arm transversely. The rear curved arm and the front curved arm extend from both sides of the second opening to form an overlap. The latch is vertically inserted into the first opening to pin the overlapped portion of the rear curved arm and the front curved arm.

14. A locking structure according to claim 11, characterized in that: The rear curved arm and / or the front curved arm are composed of multiple sections of rods, and adjacent sections are located on different planes.

15. The lock structure according to claim 11, characterized in that: The end of the front curved arm is provided with a connecting groove, and the locking tongue is connected to the front curved arm through the connecting groove.

16. A locking structure according to claim 10, characterized in that: The pull end is provided with a vertical arm, a limiting hole is provided on the vertical arm, a positioning pin is provided in the shell body, and the positioning pin passes through the limiting hole to achieve the limiting of the pull end.

17. A lock structure according to any one of claims 1 to 9, characterized in that: The shell is provided with an inner handle, which is located on the inner side of the shell opposite to the outer handle assembly. The first connecting block is provided with a card slot, and a lever is provided at a corresponding position on the inner handle. The lever is inserted into and abuts against the card slot to realize the movable connection between the inner handle and the lock tongue.

18. A locking structure according to claim 17, characterized in that: The inner handle is connected to the housing via an axis.

19. A locking structure according to claim 18, characterized in that: A torsion spring is sleeved on the connecting shaft between the inner handle and the shell.

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