Motor home door lock and motor home

Abstract

The invention belongs to the field of recreational vehicles, and particularly relates to a recreational vehicle door lock and a recreational vehicle. The driving block is slidably arranged in the shell, and a sliding path of the driving block at least comprises an initial position, a first position and a second position; the inner handle is located on the inner side of the inner door, and the inner handle rotates to enable the driving block to move from the initial position to the first position; the handle is located on the inner side of the inner door, and the handle rotates to enable the driving block to move from the initial position to the first position and the second position; the outer handle is located on the outer side of the inner door, and the outer handle rotates to enable the driving block to move to the first position from the initial position; the pull rod is connected with the driving block and synchronously moves with the driving block; the main lock is connected with the pull rod and used for locking or unlocking the inner door and the door frame; the auxiliary lock is connected with the pull rod and used for locking or unlocking the outer door and the inner door. The motor home door lock is simple in structure and easy and convenient to operate. Separation of the inner door and the door frame and separation of the inner door and the outer door can be achieved by moving the driving block to different positions.

Description

Technical Field

[0001] The present application belongs to the field of recreational vehicles, and in particular, relates to a recreational vehicle door lock and a recreational vehicle. Background Art

[0002] RVs are different from ordinary transportation vehicles. They not only have transportation functions, but also have living functions. Therefore, they are also called motorhomes. The doors of RVs are required to have safety protection functions. In order to improve the comfort of travel, RVs are also required to have ventilation functions. Usually, RV doors are set with a double-layer structure. The outer door mainly plays a safety protection function, and the inner door is a screen door. The screen door plays a ventilation role when resting, and prevents mosquitoes, snakes and ants from entering the car.

[0003] The RV door lock mainly plays the role of closing, locking or opening the RV door and the RV body, and closing, locking or opening the inner door and the outer door. The existing RV door lock structure is relatively complex and the operation is cumbersome. Summary of the invention

[0004] The invention aims to solve the technical problems of the complicated structure and complicated operation of the RV door lock in the prior art.

[0005] In order to solve the above problems, the present invention provides a motorhome door lock, which is used for locking the inner door, outer door and door frame of the motorhome, comprising:

[0006] A housing, mounted on the inner door;

[0007] A driving block is slidably disposed in the housing, and a sliding path thereof includes at least an initial position, a first position, and a second position;

[0008] An inner handle, rotatably mounted on the housing and located on the inner side of the inner door, wherein the inner handle can be rotated to move the driving block from the initial position to the first position;

[0009] A handle, rotatably mounted on the housing and located on the inner side of the inner door, wherein the handle can rotate to move the driving block from an initial position to a first position and a second position;

[0010] an outer handle, rotatably mounted on the housing and located on the outer side of the inner door, wherein the outer handle can be rotated to move the driving block from the initial position to the first position;

[0011] A pull rod connected to the driving block and moving synchronously;

[0012] A main lock connected to the pull rod and used for locking or unlocking the inner door and the door frame. When the driving block is in the initial position, the main lock is in a locked state, and when the driving block is in the first position, the main lock is in an unlocked state;

[0013] A secondary lock is connected to the pull rod and is used for locking or unlocking the outer door and the inner door. When the drive block is in the initial position and the first position, the secondary lock is in a locked state. When the drive block is in the second position, the secondary lock is in an unlocked state.

[0014] In some embodiments, a safety mechanism is further included on the shell, and the safety mechanism limits the handle to prevent the handle from rotating relative to the shell.

[0015] In some embodiments, the safety mechanism includes an operating part rotatably arranged on the shell, the operating part extends a limiting part toward one side of the handle, the handle extends a limiting end at one end close to the safety mechanism, the limiting part conflicts with the limiting end to prevent the handle from rotating relative to the shell, and the limiting part disengages from the limiting end to enable the handle to rotate relative to the shell.

[0016] In some embodiments, a lock core is further included. When the lock core is in a locked position, the lock core prevents the drive block from moving relative to the housing.

[0017] In some embodiments, the lock core has a key hole and a knob, the key hole is exposed to the outside of the inner door, and a key is inserted into the key hole to put the lock core in a locked position or an unlocked position; the knob is located on the inside of the inner door, and turning the knob puts the lock core in a locked position or an unlocked position.

[0018] In some embodiments, the inner walls on both sides of the drive block have flanges extending toward the center, and the flanges are provided with locking notches matching the outer diameter of the lock core. The outside of the lock core has a clearance groove corresponding to the flange. When the clearance groove is staggered with the locking notch, the lock core is in a locked position, and when the clearance groove corresponds to the locking notch, the lock core is in an unlocked position.

[0019] In some embodiments, a through hole is provided at a position corresponding to the outer door and the shell, a reset element is provided between the outer handle and the shell, the outside of the lock core also has a limiting groove, and a limiting block extends from one end of the outer handle close to the lock core; when the lock core is in a locked position, the limiting block is located in the limiting groove, and the reset element makes the outer handle hidden in the through hole; when the lock core is in an unlocked position, the limiting block is disengaged from the limiting groove, the outer handle exposes the through hole, and the outer handle can rotate relative to the shell.

[0020] In some embodiments, the main lock includes a lock pin fixed on the pull rod and a block fixed on the door frame, and the block is provided with a notch for accommodating the lock pin.

[0021] In some embodiments, the bottom of the block has a first guiding slope, and the notch is located at the end of the first guiding slope.

[0022] In some embodiments, a guide block is fixedly provided on the inner door, the top of the block has a second guide slope, and the bottom of the guide block has a third guide slope. When the inner door is closed, the third guide slope cooperates with the second guide slope.

[0023] In some embodiments, the secondary lock includes a latch fixed on the outer door and a lock box fixed on the pull rod, the latch is provided with a slot, and a pair of elastic clamp blocks arranged opposite to each other are provided in the lock box, and the gap between the pair of elastic clamp blocks forms a limiting channel, and the limiting channel includes a locking section and an unlocking section, the locking section width is smaller than the outer diameter of the slot, and the unlocking section width is larger than the outer diameter of the slot, when the drive block is in the initial position and the first position, the latch is located in the locking section, and the elastic clamp block is located in the slot, and when the drive block is in the second position, the latch is located in the unlocking section, and the elastic clamp block is disengaged from the slot.

[0024] In some embodiments, the width of the limiting channel of the locking section gradually decreases toward the unlocking section, and a step is provided at the connection with the unlocking section.

[0025] In some embodiments, the latch is tapered at one end facing the lock box.

[0026] In some embodiments, the rotation axes of the handle and the outer handle are parallel to the width direction of the inner door, and the rotation axis of the inner handle is parallel to the thickness direction of the inner door. The outer handle, inner handle and handle are all provided with swing arms, and the driving block is driven to slide by corresponding swing arms respectively.

[0027] In some embodiments, the outer handle, the inner handle and the swing arm of the pull handle are in rolling friction contact with the driving block through rollers.

[0028] The present invention also provides a motorhome, which comprises the motorhome door lock.

[0029] Beneficial effects: The RV door lock of the present invention does not require the use of a complex transmission mechanism, has a simple structure and low cost. The inner door and the door frame can be separated, and the inner door and the outer door can be separated by moving the drive block to different positions. When the door needs to be opened, the inner door and the door frame can be separated by operating the inner handle or the handle in the car; the inner door and the outer door can be separated by moving the drive block to the second position by the handle; when opening the door outside the car, the inner door and the door frame can be separated by operating the outer handle to move the drive block to the first position, which is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the RV door structure;

[0031] Figure 2 This is a structural diagram of the RV door from another angle;

[0032] Figure 3 This is a schematic diagram of the door structure after the door frame is hidden;

[0033] Figure 4 for Figure 3 A magnified view of the structure at center;

[0034] Figure 5 This is a schematic diagram of the RV door lock structure;

[0035] Figure 6 for Figure 5 A magnified view of the structure at B in the middle;

[0036] Figure 7 for Figure 6 A magnified view of the structure at C in the middle;

[0037] Figure 8 This is a schematic diagram of the structure of the RV door lock from another angle;

[0038] Fig. 9 for Figure 8 A magnified view of the structure at D in the middle;

[0039] Fig.10 for Figure 8 Enlarged view of the structure at E in the middle;

[0040] Fig.11 for Figure 8 Enlarged view of the structure at F in the middle (the latch is not shown);

[0041] Fig.12 It is a schematic diagram of the structure of the drive block cooperating with the outer handle, the pull handle and the inner handle;

[0042] Fig.13 for Fig.12 A magnified view of the structure at G in the middle;

[0043] Fig.14 This is a schematic diagram of the structure of the drive block cooperating with the outer handle, the pull handle and the inner handle at another angle;

[0044] Fig.15 for Fig.14 A magnified view of the structure at H in the middle;

[0045] Fig.16 This is a partial view of the RV door.

[0046] In the figure, 100. inner door, 200. outer door, 210. through hole, 220. hanging ring, 300. door frame, 10. housing, 11. inner panel, 12. outer panel, 13. drive block, 131. flange, 132. locking notch, 20. inner handle, 30. handle, 31. limit end, 32. swing arm, 33, roller, 40. outer handle, 41. limit block, 42. reset element, 50. pull rod, 51. slide slot hole, 52. positioning column, 53. guide block, 54. The third guide slope, 55. tension spring, 60. main lock, 61. block, 62. lock pin, 63. first guide slope, 64. notch, 65. second guide slope, 70. auxiliary lock, 71. lock box, 72. elastic clamping block, 721. locking section, 722. unlocking section, 723. step, 73. latch, 74. slot, 80. insurance mechanism, 81. operating part, 82. limiting part, 90. lock core, 91. lock hole, 92. knob, 93. clearance groove, 94. limiting groove. DETAILED DESCRIPTION

[0047] The present application will be further described below in conjunction with specific implementation methods. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative changes belong to the protection scope of the present application.

[0048] like Figures 1 to 3 As shown, the RV door lock provided by the present invention is used for locking between the inner door 100, the outer door 200 and the door frame 300 of the RV. The door frame 300 is installed on the RV body to fix the RV door. The inner door 100 and the outer door 200 are both hinged on the door frame 300 by hinges. The inner door 100 can be separated from the outer door 200 and locked on the door frame 300 alone, or it can be locked together with the outer door 200 and locked on the door frame 300. The outer door 200 mainly plays a safety protection function, and a window can be opened. The inner door 100 is designed as a screen door (the screen structure is not shown in the figure) and mainly plays a ventilation function. When driving, it is necessary to lock the inner door 100 and the outer door 200 and then lock them as a whole on the door frame 300 to close the door; when parking and resting, the inner door 100 can be locked with the door frame 300, and the outer door 200 can be separated and opened from the inner door 100. The screen door is used for ventilation and air permeability, and mosquitoes, snakes and ants can be prevented from entering the car.

[0049] like Figures 3 to 15 As shown, the RV door lock includes

[0050] The housing 10 is mounted on the inner door 100;

[0051] The driving block 13 is slidably disposed in the housing 10, and its sliding path includes at least an initial position, a first position, and a second position;

[0052] An inner handle 20 is rotatably mounted on the housing 10 and is located on the inner side of the inner door 100. The inner handle 20 is rotated to move the driving block 13 from the initial position to the first position;

[0053] A handle 30 is rotatably mounted on the housing 10 and is located on the inner side of the inner door 100. The handle 30 is rotated to move the driving block 13 from an initial position to a first position and a second position.

[0054] An outer handle 40 is rotatably mounted on the housing 10 and is located outside the inner door 100. The outer handle 40 is rotated to move the driving block 13 from the initial position to the first position;

[0055] The pull rod 50 is connected to the driving block 13 and moves synchronously;

[0056] A main lock 60, connected to the pull rod 50, for locking or unlocking the inner door 100 and the door frame 300. When the driving block 13 is in the initial position, the main lock 60 is in a locked state, and when the driving block 13 is in the first position, the main lock 60 is in an unlocked state;

[0057] The secondary lock 70 is connected to the pull rod 50 and is used to lock or unlock the outer door 200 and the inner door 100. When the drive block 13 is in the initial position and the first position, the secondary lock 70 is in a locked state. When the drive block 13 is in the second position, the secondary lock 70 is in an unlocked state.

[0058] like Figure 6 and 9 As shown, in some embodiments, the housing 10 is composed of an inner panel 11 and an outer panel 12 connected by bolts, and the driving block 13 is slidably installed in the installation space formed between the inner panel 11 and the outer panel 12, as shown in FIG. Figure 3 As shown, during installation, a mounting hole is opened in the middle of the frame of the inner door 100 away from the hinge to install the shell 10, so that the inner panel 11 of the shell 10 is basically flush with the inner side panel of the inner door 100, and the outer panel 12 of the shell 10 is basically flush with the outer side panel of the inner door 100, and an avoidance hole is opened at the corresponding position of the side of the frame of the inner door 100 (the side in the thickness direction of the inner door 100), and the bolt passes through the avoidance hole to fix the pull rod 50 on the drive block 13, so that the pull rod 50 can be attached to the side of the frame and can move up and down synchronously with the drive block 13. Figure 4 , 10As shown in 11, in order for the pull rod 50 to fit on the side of the frame and slide smoothly, multiple positioning columns 52 can be fixed in the height direction of the side of the frame, and a slide slot hole 51 can be set at the corresponding position of the pull rod 50. The head of the positioning column 52 can have a diameter greater than the width of the slide slot hole 51, or a positioning block can be fixed at the end of the positioning column 52, and the size of the positioning block is greater than the width of the slide slot hole 51. The positioning column 52 passes through the slide slot hole 51, and the head of the positioning column 52 or the positioning block is located outside the slide slot hole 51, thereby restricting the pull rod 50, so that the pull rod 50 can move up and down synchronously with the driving block 13, and fit with the side of the frame at the same time, and will not be separated. The length of the slide slot hole 51 should not be less than the distance that the driving block 13 moves from the initial position to the second position, so as to allow the pull rod 50 to move synchronously with the driving block 13.

[0059] like Figure 3 , 5 As shown in Figures 8 and 9, the pull rod 50 extends up and down from the side of the frame of the inner door 100, and basically extends to the top and bottom of the side. The number of main locks 60 can be set to multiple. As shown in the figure, in one embodiment, a total of 4 main locks 60 are set. The 4 main locks 60 are distributed at different heights of the RV door. The inner handle 20, the handle 30 or the outer handle 40 is operated to make the drive block 13 slide downward from the initial position to the first position, driving the pull rod 50 to drop to a corresponding height, so that the main lock 60 can be unlocked, and then the inner door 100 and the outer door 200 can be separated. After unlocking, release the inner handle 20, the handle 30 or the outer handle 40 to make the drive block 13 return from the first position to the initial position, as shown in Figure 8. Fig.11 As shown, a tension spring 55 can be arranged between the upper end of the pull rod 50 and the upper end of the inner door 100. When the inner handle 20, the handle 30 or the outer handle 40 is released, the tension spring 55 automatically pulls the pull rod 50 upward, thereby driving the drive block 13 to move upward and return to the initial position; a tension spring 55 can also be arranged between the drive block 13 and the shell 10. When the inner handle 20, the handle 30 or the outer handle 40 is released, the tension spring 55 automatically pulls the drive block 13 upward and returns to the initial position.

[0060] Unlike the main lock 60, the secondary lock 70 is in a locked state when the drive block 13 is in the initial position and the first position. Continue to pull the outer handle 40 to move the drive block 13 from the first position to the second position. At this time, the secondary lock 70 is unlocked, and the inner door 100 and the outer door 200 can be separated from each other. Release the outer handle 40, and the pull rod 50 and the drive block 13 are reset under the action of the tension spring 55.

[0061] In some embodiments, Figures 1 to 15As shown, the rotation axes of the handle 30 and the outer handle 40 are parallel to the width direction of the inner door 100, and the rotation axis of the inner handle 20 is parallel to the thickness direction of the inner door 100. As shown in the figure, the inner handle 20 is rotatably arranged on the upper part of the inner panel 11 of the shell 10 through a rotating shaft, the handle 30 is rotatably arranged on the bottom of the inner panel 11 through a rotating shaft, and the outer handle 40 is rotatably arranged on the outer panel 12 of the shell 10 through a rotating shaft. In order to enable automatic reset after stopping the operation, reset springs can be arranged on the rotating shafts of the inner handle 20, the handle 30, and the outer handle 40. The inner handle 20, the handle 30, and the outer handle 40 all include an operating end for the operator to operate and a swing arm 32 for driving the driving block 13 to move. The driving block 13 is provided with contact points for contacting the swing arms 32 on the inner handle 20, the handle 30, and the outer handle 40, respectively. When the operating end of the inner handle 20, the handle 30, or the outer handle 40 is operated, the corresponding swing arm 32 can be driven to swing. During the swinging process of the swing arm 32, the driving block 13 is driven to move downward by contacting the corresponding contact points. In some embodiments, as Figure 7 , 13 and 15, a roller 33 is arranged on the swing arm 32 or the contact point to change the sliding friction contact between the swing arm 32 and the contact point at the corresponding position into rolling friction contact, thereby reducing wear, improving service life and smooth operation. Specifically, as shown in the figure, a roller 33 is arranged on the swing arm 32 of the inner handle 20, and a roller 33 is arranged on the contact point of the handle 30 and the outer handle 40 corresponding to the swing arm 32. This structure enables the inner handle 20, the handle 30 and the outer handle 40 to directly drive the drive block 13, avoiding the use of transmission structures such as gears and racks, greatly reducing the number of parts, making the structure simpler, and reducing the difficulty and workload of assembly.

[0062] In some embodiments, in order to avoid misoperation of the handle 30, Figure 6 , 7 As shown in FIG. 13 , the RV door lock further includes a safety mechanism 80 disposed on the housing 10 , and the safety mechanism 80 limits the handle 30 to prevent the handle 30 from rotating relative to the housing 10 .

[0063] Specifically, in one embodiment, Figure 6 , 7As shown in Figures 13 and 13, the safety mechanism 80 includes an operating portion 81 rotatably arranged on the shell 10, the operating portion 81 extends a limiting portion 82 toward one side of the handle 30, and the handle 30 extends a limiting end 31 at one end close to the safety mechanism 80, the limiting portion 82 conflicts with the limiting end 31 to prevent the handle 30 from rotating relative to the shell 10, and the limiting portion 82 disengages from the limiting end 31 to allow the handle 30 to rotate relative to the shell 10. As shown in the figure, the safety mechanism 80 can be rotatably arranged on the inner panel 11 of the housing 10, a reset spring is arranged between the rotating shaft of the safety mechanism 80 and the housing 10, and the limit end 31 of the handle 30 is arranged above the swing arm 32 of the handle 30. In the initial state where the handle 30 is not pulled, there is a gap between the limit end 31 and the inner panel 11 of the housing 10, and the limit portion 82 is located in the gap. The limit end 31 and the limit portion 82 are in conflict with each other, and the handle 30 cannot be rotated. The safety mechanism 80 is rotated to make the limit portion 82 swing away from the gap between the limit end 31 and the inner panel 11 of the housing 10, and the limit end 31 and the limit portion 82 are no longer in conflict, and the handle 30 can be rotated. The setting of the safety mechanism 80 can effectively prevent children or operators from operating inappropriately, thereby improving safety.

[0064] In some embodiments, to improve security, such as Figure 6 , 7 As shown in FIGS. 9, 13 and 15, the RV door lock further includes a lock core 90. When the lock core 90 is in the locked position, the lock core 90 prevents the drive block 13 from moving relative to the housing 10. When the lock core 90 is in the locked position, even if the safety mechanism 80 is in the open state, that is, the limit portion 82 is disengaged from the limit end 31, under the action of the lock core 90, the handle 30 cannot move the drive block 13.

[0065] In one embodiment, the lock core 90 has a lock hole 91 and a knob 92. The lock hole 91 is exposed to the outside of the inner door 100. A key is inserted into the lock hole 91 to put the lock core 90 in a locked position or an unlocked position. The knob 92 is located on the inside of the inner door 100. Turning the knob 92 puts the lock core 90 in a locked position or an unlocked position. The key can be used to unlock the door outside the vehicle, and the knob 92 can be used to unlock the door inside the RV. The operation is convenient and the safety is high.

[0066] Specifically, in one embodiment, Fig.13 , 15As shown, the inner walls on both sides of the driving block 13 have flanges 131 extending toward the center, and the flanges 131 are provided with locking notches 132 matching the outer diameter of the lock core 90. The lock core 90 has a clearance groove 93 corresponding to the flange 131 on the outside. When the clearance groove 93 is staggered with the locking notch 132, the lock core 90 is in a locked position, and when the clearance groove 93 corresponds to the locking notch 132, the lock core 90 is in an unlocked position. The lock core 90 is set at a position between the inner handle 20 and the outer handle 40, and the clearance groove 93 is a groove set on the outer peripheral surface of the lock core 90 that does not surround the lock core 90. That is, two sections of the clearance groove 93 are set on the outer periphery of the lock core 90, and the two sections of the limiting groove 94 are symmetrically set at the same height of the outer periphery of the lock core 90. When the clearance groove 93 is staggered with the locking notch 132 on the flange 131 of the driving block 13, that is, the lock core 90 is in the locked position, the outer periphery of the lock core 90 interferes with the locking notch 132, and the limiting groove 94 is symmetrically set at the same height of the outer periphery of the lock core 90. When the key or knob 92 is rotated to rotate the lock core 90 by 90° and the lock core 90 is in the unlocked position, the clearance groove 93 is aligned with the flange 131 of the drive block 13. Since the distance between the bottoms of the two sections of the clearance groove 93 is smaller than the distance between the flanges 131 on both sides of the drive block 13, the lock core 90 no longer interferes with the drive block 13. When the drive block 13 moves downward, the flange 131 of the drive block 13 can be inserted into the clearance groove 93 to form a sliding fit relationship.

[0067] In some embodiments, in order to facilitate the operation of the external handle 40, as shown in FIG. Fig.16 As shown, the outer door 200 is provided with a through hole 210 at a position corresponding to the housing 10, and a reset element 42 is provided between the outer handle 40 and the housing 10. Fig.13 and 15 As shown, the lock core 90 further has a limiting groove 94 on the outside, and a limiting block 41 extends from one end of the outer handle 40 close to the lock core 90; when the lock core 90 is in the locked position, the limiting block 41 is located in the limiting groove 94, and the reset element 42 makes the outer handle 40 hidden in the through hole 210 (as shown in FIG. Fig.16As shown); when the lock core 90 is in the unlocked position, the limit block 41 is disengaged from the limit groove 94, the outer handle 40 exposes the through hole 210, and the outer handle 40 can rotate relative to the housing 10. Specifically, the limit groove 94 can be set at the bottom of the give way groove 93, that is, the limit groove 94 is closer to the outside of the inner door 100 than the give way groove 93, and corresponds to the position of the give way groove 93. The reset element 42 can be the reset spring in the above embodiment. When the limit block 41 is located in the limit groove 94, that is, the lock core 90 is in the locked state, the limit block 41 is no longer restricted by the outer circumferential wall of the lock core 90, and the outer handle 40 is hidden in the through hole 210 under the restoring force of the reset element 42. When the limit block 41 is in the process of being separated from the limit groove 94, that is, the lock core 90 is in the unlocking position, the limit block 41 of the outer handle 40 contacts the outer circumferential wall of the lock core 90 and is squeezed by the outer circumferential wall of the lock core 90, forcing the outer handle 40 to rotate and expose its operating end from the through hole 210, which is convenient for the operator to operate. During this process, the swing arm 32 of the outer handle 40 does not contact the corresponding contact point on the drive block 13, so the drive block 13 will not move. At this time, hold the operating end of the outer handle 40 that leaks out of the through hole 210 and pull the outer handle 40 away from the RV, so that the swing arm 32 contacts the corresponding contact point on the drive block 13, and then the drive block 13 moves, thereby unlocking the main lock 60. When the outer handle 40 is released, the reset spring can reset it to the position where it is exposed through the through hole 210, and the limit block 41 is against the outer circumferential wall of the lock core 90. When the lock cylinder 90 is locked, the lock cylinder 90 is rotated to make the limit block 41 slide from the outer circumferential wall of the lock cylinder 90 to the limit groove 94. Since the limit groove 94 is recessed in the outer circumferential wall of the lock cylinder 90, the outer handle 40 continues to reset under the restoring force of the reset element 42, and the outer handle 40 can be restored to the state hidden in the through hole 210. This design can prevent the outer handle 40 from protruding from the surface of the RV when driving, which can reduce air resistance on the one hand and avoid scratches on the outer handle 40 on the other hand. At the same time, it can also let the operator know the locking state of the RV door lock to prevent the operator from forgetting to lock the RV when leaving the RV.

[0068] Furthermore, in some embodiments, Fig.16 As shown, a hanging ring 220 is provided outside the outer door 200 at the position of the hole 210, so that when the outer door 200 is opened alone or the outer door 200 and the inner door are opened together, the hanging ring 220 can be hung on the outside of the RV body to fix the outer door 200.

[0069] In some embodiments, Figure 4 , 10As shown in Figures 11 and 12, the main lock 60 includes a lock pin 62 fixed on the pull rod 50 and a block 61 fixed on the door frame 300, and the block 61 is provided with a notch 64 for accommodating the lock pin 62. Specifically, the notch 64 is located on the bottom surface of the block 61. When the lock pin 62 is located in the notch 64, the inner door 100 and the door frame 300 are in a closed and locked state. When the driving block 13 moves downward from the initial position to the first position, the pull rod 50 drives the lock pin 62 to move downward and disengage from the notch 64 of the block 61, thereby realizing the unlocking of the main lock 60. During this process, the secondary lock 70 is still in a locked state.

[0070] like Figure 4 , 10 As shown in FIG. 11 , in order to ensure effective cooperation between the block 61 and the locking pin 62 and avoid interference during the door closing process, in some embodiments, the bottom of the block 61 has a first guide slope 63 , and the notch 64 is located at the end of the first guide slope 63 . Specifically, the height of the end of the first guide bevel 63 close to the outside of the RV is higher. During the process of closing the inner door 100, the drive block 13 is in the initial position under the action of the tension spring 55, and the lock pin 62 is in the highest position at this time, but it is still lower than the height of the end of the first guide bevel 63 close to the outside of the RV; when the lock pin 62 contacts the first guide bevel 63 of the block 61 and continues to close the door, the lock pin 62 moves downward along the first guide bevel 63, and the pull rod 50 and the drive block 13 also move downward accordingly; when the lock pin 62 moves to the position of the notch 64, under the action of the tension spring 55, the pull rod 50 drives the lock pin 62 and the drive block 13 to move upward automatically until the drive block 13 is in the initial position, at which time the lock pin 62 is located in the notch 64, and the main lock 60 is locked.

[0071] Since the RV door has a large area and is a double-layer door structure of the inner door 100 and the outer door 200, and is also heavy, it is easy to deflect. In some embodiments, Figure 4 , 10As shown in Figures 11 and 11, a guide block 53 is fixedly provided on the inner door 100, a second guide slope 65 is provided on the top of the block 61, and a third guide slope 54 is provided on the bottom of the guide block 53. When the inner door 100 is closed, the third guide slope 54 cooperates with the second guide slope 65. The positioning block on the positioning column 52 of the inner door 100 can be set as a guide block 53 to reduce the number of parts. Specifically, the positioning block is located above the locking pin 62 and the block 61. The third guide slope 54 at the bottom of the guide block 53 is higher at one end facing the inside of the RV, while the second guide slope 65 at the top of the block 61 is lower at one end facing the outside of the RV. When the inner door 100 is closed, the end of the block 61 close to the outside of the RV is inserted between the guide block 53 and the locking pin 62 and contacts the locking pin 62. The locking pin 62 will The first guide bevel 63 causes a downward displacement, and the inner door 100 as a whole is subjected to a downward force, coupled with the self-weight of the inner door 100. If the rigidity of the inner door 100 or the hinge is insufficient, deflection will occur, that is, the side of the inner door 100 away from the hinge will deflect downward. At this time, the third guide bevel 54 of the guide block 53 contacts the second guide bevel 65 of the clamping block 61, thereby preventing the inner door 100 from further deflecting, avoiding the deflection and deformation that causes misalignment with the door frame 300, and making it impossible to lock or open, while increasing the service life of the inner door 100.

[0072] In some embodiments, Fig.10 and 11As shown, the secondary lock 70 includes a latch pin 73 fixed on the outer door 200 and a lock box 71 fixed on the pull rod 50, the latch pin 73 is provided with a slot 74, and a pair of elastic clamp blocks 72 are provided in the lock box 71. The gap between the pair of elastic clamp blocks 72 forms a limiting channel, and the limiting channel includes a locking section 721 and an unlocking section 722. The width of the locking section 721 is smaller than the outer diameter of the slot 74, and the width of the unlocking section 722 is larger than the outer diameter of the slot 74. When the drive block 13 is in the initial position and the first position, the latch pin 73 is located in the locking section 721, and the elastic clamp block 72 is located in the slot 74. When the drive block 13 is in the second position, the latch pin 73 is located in the unlocking section 722, and the elastic clamp block 72 is disengaged from the slot 74. As shown in the figure, the lock box 71 is fixed inside the inner door 100, and a through hole facing the limiting channel is opened on the inner outer plate. The latch 73 is fixed on the inner panel of the outer door 200, and its position and height correspond to the through hole. When the inner door 100 and the outer door 200 are in the locked state, the latch pin 73 is inserted into the through hole, and the elastic clamp block 72 of the locking section 721 is located in the slot 74. When the inner handle 20, the handle 30 or the outer handle 40 is operated to move the drive block 13 from the initial position to the first position, the lock box 71 moves relative to the latch pin 73 with the pull rod 50, but the latch pin 73 is still in the locking section 721 of the limiting channel and will not disengage; when the handle 30 is operated to continue to move the drive block 13 from the first position to the second position, the lock box 71 moves further downward with the pull rod 50. At this time, the latch pin 73 is in the unlocking section 722 of the limiting channel. Since the width of the unlocking section 722 is greater than the outer diameter of the slot 74, the elastic clamp block 72 disengages from the slot 74 of the latch pin 73. Therefore, the secondary lock 70 is in the unlocking state, and the inner door 100 and the outer door 200 can be separated. When the outer door 200 and the inner door 100 are closed and locked, the drive block 13 and the lock box 71 are in the initial position, and the locking section 721 is located at the through hole position. Since the elastic clamp block 72 is elastic, although the width of the limiting channel of the locking section 721 is smaller than the outer diameter of the slot 74, the latch 73 can still open the elastic clamp block 72 of the locking section 721 after being inserted into the through hole, and then insert into the limiting channel. When the slot 74 on the latch 73 reaches the position of the elastic clamp block 72, the opened elastic clamp block 72 is reset and snapped into the slot 74, thereby realizing the locking of the secondary lock 70. As shown in the figure, there are two secondary locks 70, which are respectively arranged at the upper and lower parts of the RV door. Specifically, one end of the tension spring 55 can be fixed to the uppermost lock box 71.

[0073] In some embodiments, Fig.11As shown, the width of the limiting channel of the locking section 721 gradually decreases toward the unlocking section 722, and a step 723 is provided at the connection with the unlocking section 722. When unlocking, the elastic clamp block 72 slides in the slot 74 of the latch 73. Since the width of the limiting channel of the locking section 721 gradually decreases, the friction between the elastic clamp block 72 and the slot 74 also increases. When the inner handle 20, the handle 30 and the outer handle 40 are operated to move the driving block 13 from the initial position to the first position, the operator will have a feedback feeling that the force needs to be gradually increased, which increases the comfort of operation. When the handle 30 is continuously pulled to move the driving block 13 from the first position to the second position, the slot 74 of the latch 73 passes over the step 723 and disengages from the elastic clamp block 72, and the friction between the two suddenly disappears. Then, the handle 30 gives the operator obvious feedback, so that the operator can feel that the secondary lock 70 has been unlocked, avoiding the problem that the operator continues to pull the handle 30, causing damage to the door lock.

[0074] like Fig.10 As shown, in order to ensure smooth insertion of the latch 73 into the locking section 721, in some embodiments, the end of the latch 73 facing the lock box 71 is tapered. That is, the outer diameter of the end of the latch 73 is smaller than the width of the locking section 721, and the latch 73 can enter the locking section 721 during insertion, and the tapered structure is used to gradually open the elastic clamping block 72 of the locking section 721 to avoid jamming and ensure effective cooperation between the latch 73 and the elastic clamping block 72.

[0075] The present invention also provides a motorhome, which comprises the motorhome door lock.

[0076] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of this application.

Claims

1. A motorhome door lock, characterized in that: The door lock is used for locking an inner door (100), an outer door (200) and a door frame (300) of a recreational vehicle, and comprises A housing (10) mounted on the inner door (100); A driving block (13) is slidably disposed in the housing (10), and a sliding path thereof includes at least an initial position, a first position, and a second position; an inner handle (20) rotatably mounted on the housing (10) and located on the inner side of the inner door (100), wherein the inner handle (20) is rotated to enable the driving block (13) to move from an initial position to a first position; A handle (30) is rotatably mounted on the housing (10) and is located on the inner side of the inner door (100), wherein the handle (30) is rotated to enable the driving block (13) to move from an initial position to a first position and a second position; an outer handle (40) rotatably mounted on the housing (10) and located outside the inner door (100), wherein the outer handle (40) is rotated to move the driving block (13) from an initial position to a first position; A pull rod (50) connected to the driving block (13) and moving synchronously therewith; A main lock (60) connected to the pull rod (50) and used for locking or unlocking the inner door (100) and the door frame (300); when the driving block (13) is in the initial position, the main lock (60) is in a locked state; when the driving block (13) is in the first position, the main lock (60) is in an unlocked state; The secondary lock (70) is connected to the pull rod (50) and is used for locking or unlocking the outer door (200) and the inner door (100). When the drive block (13) is in the initial position and the first position, the secondary lock (70) is in a locked state; when the drive block (13) is in the second position, the secondary lock (70) is in an unlocked state.

2. The RV door lock according to claim 1, characterized in that: It also includes a safety mechanism (80) disposed on the shell (10), wherein the safety mechanism (80) limits the position of the handle (30) to prevent the handle (30) from rotating relative to the shell (10).

3. The RV door lock according to claim 2, characterized in that: The safety mechanism (80) comprises an operating portion (81) rotatably arranged on the shell (10), the operating portion (81) extending a limiting portion (82) toward one side of the handle (30), and the handle (30) extending a limiting end (31) at one end close to the safety mechanism (80), the limiting portion (82) abutting against the limiting end (31) to prevent the handle (30) from rotating relative to the shell (10), and the limiting portion (82) disengages from the limiting end (31) to enable the handle (30) to rotate relative to the shell (10).

4. The RV door lock according to claim 1 or 2, characterized in that: It also includes a lock core (90). When the lock core (90) is in a locked position, the lock core (90) prevents the drive block (13) from moving relative to the housing (10).

5. The RV door lock according to claim 4, characterized in that: The lock core (90) has a lock hole (91) and a knob (92), wherein the lock hole (91) is exposed to the outside of the inner door (100), and a key is inserted into the lock hole (91) to put the lock core (90) in a locked position or an unlocked position; the knob (92) is located on the inside of the inner door (100), and turning the knob (92) puts the lock core (90) in a locked position or an unlocked position.

6. The RV door lock according to claim 5, characterized in that: The inner walls on both sides of the driving block (13) have flanges (131) extending toward the center, and the flanges (131) are provided with locking notches (132) matching the outer diameter of the lock core (90). The lock core (90) has a clearance groove (93) corresponding to the flange (131) on the outside. When the clearance groove (93) is staggered with the locking notch (132), the lock core (90) is in a locked position, and when the clearance groove (93) is corresponding to the locking notch (132), the lock core (90) is in an unlocked position.

7. The RV door lock according to claim 6, characterized in that: A through hole (210) is provided at a position of the outer door (200) corresponding to the shell (10), a reset element (42) is provided between the outer handle (40) and the shell (10), and the lock core (90) is also provided with a limiting groove (94) on the outside, and a limiting block (41) extends from one end of the outer handle (40) close to the lock core (90); when the lock core (90) is in a locked position, the limiting block (41) is located in the limiting groove (94), and the reset element (42) makes the outer handle (40) hidden in the through hole (210); when the lock core (90) is in an unlocked position, the limiting block (41) is disengaged from the limiting groove (94), the outer handle (40) exposes the through hole (210), and the outer handle (40) can rotate relative to the shell (10).

8. The RV door lock according to claim 1 or 2, characterized in that: The main lock (60) comprises a lock pin (62) fixed on the pull rod (50) and a clamping block (61) fixed on the door frame (300), and a notch (64) for accommodating the lock pin (62) is provided on the clamping block (61).

9. The RV door lock according to claim 8, characterized in that: The bottom of the clamping block (61) has a first guiding inclined surface (63), and the notch (64) is located at the end of the first guiding inclined surface (63).

10. The RV door lock according to claim 8, characterized in that: A guide block (53) is fixedly arranged on the inner door (100), a second guide slope (65) is provided on the top of the clamping block (61), and a third guide slope (54) is provided on the bottom of the guide block (53); when the inner door (100) is closed, the third guide slope (54) cooperates with the second guide slope (65).

11. The RV door lock according to claim 1 or 2, characterized in that: The secondary lock (70) comprises a latch (73) fixed on the outer door (200) and a lock box (71) fixed on the pull rod (50), the latch (73) is provided with a slot (74), a pair of elastic clamping blocks (72) arranged opposite to each other are provided in the lock box (71), a gap between the pair of elastic clamping blocks (72) forms a limiting channel, the limiting channel comprises a locking section (721) and an unlocking section (722), the width of the locking section (721) is less than The outer diameter of the card slot (74) and the width of the unlocking section (722) are greater than the outer diameter of the card slot (74); when the drive block (13) is in the initial position and the first position, the latch (73) is located in the locking section (721), and the elastic clamping block (72) is located in the card slot (74); when the drive block (13) is in the second position, the latch (73) is located in the unlocking section (722), and the elastic clamping block (72) is disengaged from the card slot (74).

12. The RV door lock according to claim 11, characterized in that: The width of the limiting channel of the locking section (721) gradually decreases towards the unlocking section (722), and a step (723) is provided at the connection with the unlocking section (722).

13. The RV door lock according to claim 11, characterized in that: One end of the latch pin (73) facing the lock box (71) is tapered.

14. The RV door lock according to claim 1 or 2, characterized in that: The rotation axes of the handle (30) and the outer handle (40) are parallel to the width direction of the inner door (100), and the rotation axis of the inner handle (20) is parallel to the thickness direction of the inner door (100). The outer handle (40), the inner handle (20) and the handle (30) are all provided with swing arms (32), and the driving block (13) is driven to slide through the corresponding swing arms (32).

15. The RV door lock according to claim 14, characterized in that: The outer handle (40), the inner handle (20) and the swing arm (32) of the pull handle (30) are in rolling friction contact with the driving block (13) via the roller (33).

16. A motorhome, characterized in that: Including the RV door lock according to any one of claims 1 to 15.

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