Motor home door lock capable of synchronously linking spring bolt and safety pin

Abstract

The utility model discloses a motor home door lock capable of synchronously linking a spring bolt and a safety pin. Comprising a lock body and an outer handle fixedly installed on the outer end face of the lock body, a first sliding cavity, a second sliding cavity and an installation cavity are formed in the lock body, a spring bolt and a spring are placed in the first sliding cavity, a safety pin is placed in the second sliding cavity, and a lock cylinder is arranged on the lock body and located on the outer handle, sequentially penetrates through the outer handle and a shell of the lock body and is placed in the installation cavity. An output shaft of the lock cylinder is connected with a first rotating disc, and the first rotating disc is sleeved with a second rotating disc capable of being driven by the first rotating disc. The lock cylinder is directly arranged on the outer handle, the exquisite design of the lock body can be facilitated, the operation of unlocking by turning over the handle is omitted, in addition, in combination with the existence of the first gear motor and the second gear motor, the mechanical and electrical integrated unlocking of the spring bolt and the safety pin can be realized in various forms, and the mechanical and electrical integrated unlocking is convenient. And the expansion requirements of one-key unlocking and door opening through one-key screwing are met.

Description

Technical Field

[0001] This utility model relates to the field of RV door lock technology, and in particular to an RV door lock that can synchronously link the locking tongue and the safety pin. Background Technology

[0002] Motorhomes, also known as recreational vehicles (RVs), can be parked anywhere far from the city, such as beaches, lakeshores, meadows, hillsides, and forests, while still offering the lifestyle of city dwellers: cooking delicious meals, taking a hot shower, sleeping in a soft, comfortable bed, watching TV, listening to music, and playing DVDs. Therefore, motorhomes have become a popular choice for young people traveling. One key difference between motorhomes and regular car doors is the door lock.

[0003] Currently, most existing RV door locks operate using an internal linkage mechanism to control the extension and retraction of the safety pin. For the latch, a handle is needed on both the inner and outer door locks. Turning the handle retracts the latch, resulting in two steps for unlocking the RV. First, the key must unlock the safety pin, and then the latch must be retracted by turning the handle. This requires users to operate both the key and the handle separately each time they unlock the RV, making the unlocking process overly cumbersome and impractical for use in RVs. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a RV door lock that fixes the door handle and sets the lock hole on the door handle, so as to enable the lock tongue and the safety pin to be linked synchronously.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A RV door lock with synchronized locking bolt and safety pin includes a lock body and an outer handle fixedly mounted on the outer end face of the lock body. The lock body has a first sliding cavity, a second sliding cavity, and a mounting cavity. Both the first and second sliding cavities communicate with the mounting cavity. A locking bolt and a spring are housed in the first sliding cavity. The spring contacts the locking bolt, and under the action of the spring, the tip of the locking bolt remains extended outwards. A safety pin is housed in the second sliding cavity. The inner ends of the locking bolt and the safety pin are placed in the mounting cavity and each has a slotted opening. A lock cylinder is mounted on the outer handle of the lock body. The lock cylinder passes through the outer handle and the outer shell of the lock body sequentially and is placed in the mounting cavity. A first rotating disk is connected to the output shaft of the lock cylinder. A second rotating disk, which can be driven by the first rotating disk, is mounted on the first rotating disk. A first eccentric rod is provided on the first rotating disk. The first eccentric rod is placed in the slot of the lock tongue and pushes the lock tongue outward or pulls it back inward as the first rotating disk rotates. A gear surface and a limiting protrusion are provided on the side of the second rotating disk. A limiting block is provided in the mounting cavity at the movement trajectory of the limiting protrusion. A toggle gear is installed in the mounting cavity. The toggle gear meshes with the gear surface of the second rotating disk. A second eccentric rod is provided on the toggle gear and is placed in the slot of the safety pin.

[0007] Preferably, the limiting block is axially connected to the mounting cavity, and the mounting cavity is provided with a limiting cavity at the limiting block, so that the limiting block is only allowed to rotate within a specific range. The side of the second rotating disk near the limiting protrusion is provided with an abutting surface, and the edge of the limiting protrusion abuts against the edge of the limiting block.

[0008] Preferably, both ends of the contact surface of the second rotating disk and the edge of the limiting block are smooth surfaces.

[0009] Preferably, the first rotating disk has two symmetrical protrusions on its side, and the second rotating disk has a sleeve with two communicating 90-degree interval grooves inside the sleeve, and the protrusions are respectively placed in the 90-degree interval grooves.

[0010] Preferably, a coaxial gear is installed in the mounting cavity, the coaxial gear meshes with the gear surface of the second rotating disk, a knob is provided on the inner end face of the lock body, the rotation shaft of the knob is placed in the mounting cavity and is provided with a linkage gear, and the linkage gear is connected to the coaxial gear.

[0011] Preferably, a first geared motor is provided inside the mounting cavity, and the output shaft of the first geared motor is connected to a coaxial gear as a whole.

[0012] Preferably, the lock body is further provided with a third sliding cavity and a second reduction motor. A sliding strip is placed in the third sliding cavity. One end of the sliding strip is bent to form an overlapping end. A guide block is provided at the other end of the sliding strip. A guide hole is provided in the third sliding cavity at the guide block. The guide block is placed in the guide hole. A rack surface is provided on the sliding strip. The second reduction motor meshes with the rack surface through a gear set. An overlapping edge is provided on the lock tongue. The overlapping end is placed at the overlapping edge. As the sliding strip moves, it drags the lock tongue to retract.

[0013] Preferably, a tactile switch is provided at one end of the guide hole.

[0014] Preferably, the inner end face of the lock body is also hinged with an inner handle, the inner handle is provided with a locking rod, the lock tongue is provided with a socket, and the locking rod is placed in the socket.

[0015] By adopting the above-mentioned solution, this utility model directly sets the lock cylinder on the outer handle, so that the lock cylinder does not occupy extra space, which is conducive to the ingenious design of the lock body. At the same time, relying on the linkage mechanism formed by the first rotating disk, the second rotating disk, the coaxial gear and the actuating gear, the lock tongue and the safety pin can be synchronously retracted directly when unlocking, without the need for the outer handle to rotate. Furthermore, with the presence of the first reduction motor and the second reduction motor, the opening of the lock tongue and the safety pin can be realized in multiple ways, meeting the expansion needs of intelligent unlocking. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram of the back structure of an embodiment of this utility model.

[0018] Figure 3 This is a schematic diagram of the internal structure of an embodiment of the present utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the locking tongue and safety pin after they are concealed in an embodiment of this utility model.

[0020] Figure 5 This is an exploded view of the internal structure of an embodiment of this utility model.

[0021] Figure 6 This is a schematic diagram of the structure of the first and second rotating disks according to an embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the structure of the guide hole in an embodiment of the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0026] like Figures 1 to 7As shown, this embodiment provides a RV door lock with synchronously linked locking tongue and safety pin, including a lock body 1 and an outer handle 2 fixedly installed on the outer end face of the lock body 1. The lock body 1 is provided with a first sliding cavity 3, a second sliding cavity 4, and a mounting cavity 5. The first sliding cavity 3 and the second sliding cavity 4 are both connected to the mounting cavity 5. A locking tongue 6 and a spring 7 are installed in the first sliding cavity 3. The spring 7 contacts the locking tongue 6, and under the action of the spring 7, the top of the locking tongue 6 is always extended outward. A safety pin 8 is installed in the second sliding cavity 4. The inner ends of the locking tongue 6 and the safety pin 8 are placed in the mounting cavity 5 and are both provided with a strip-shaped opening 9. A lock cylinder 10 is provided on the outer handle 2 of the lock body 1. The lock cylinder 10 passes through the outer handle 2 and the outer shell of the lock body 1 in sequence and is placed in the mounting cavity 5. A first rotating disk 11 is connected to the output shaft. A second rotating disk 12, which can be driven by the first rotating disk 11, is mounted on the first rotating disk 11. A first eccentric rod 13 is provided on the first rotating disk 11. The first eccentric rod 13 is placed in the slot 9 of the locking tongue 6 and pushes the locking tongue 6 outward or pulls the locking tongue 6 inward as the first rotating disk 11 rotates. A gear surface 14 and a limiting protrusion 15 are provided on the side of the second rotating disk 12. A limiting block 16 is provided in the mounting cavity 5 at the moving trajectory of the limiting protrusion 15. A toggle gear 17 is installed in the mounting cavity 5. The toggle gear 17 meshes with the gear surface 14 of the second rotating disk 12. A second eccentric rod 18 is provided on the toggle gear 17. The second eccentric rod 18 is placed in the slot 9 of the safety pin 8.

[0027] In this embodiment, the lock cylinder 10 is directly mounted on the outer handle 2, so that the lock cylinder 10 does not occupy extra space, which is conducive to the ingenious design of the lock body. At the same time, relying on the linkage mechanism formed by the first rotating disk 11, the second rotating disk 12 and the actuating gear 17, the lock tongue 6 and the safety pin 8 can be synchronously retracted directly when unlocking, without the need for the outer handle 2 to rotate.

[0028] In operation, the lock is unlocked by an external key, causing the lock cylinder 10 to rotate, which in turn rotates the first rotating disk 11. This rotation of the first rotating disk 11 then drives the second rotating disk 12 to rotate as well. The first eccentric rod 13 on the first rotating disk 11 moves, engaging with the slot 9 on the latch 6 to pull the latch 6 inwards, causing it to retract. Meanwhile, the second rotating disk 12 rotates, driving the actuating gear 17 to rotate via its gear surface 14. This moves the second eccentric rod 18, engaging with the slot 9 on the safety pin 8 to pull the safety pin 8 inwards, causing it to retract, thus unlocking the lock. When locking is required, the second rotating disk 12 rotates in the same way, but this time the latch 6 automatically pops out with the spring 7, allowing the lock to be engaged.

[0029] Furthermore, to avoid excessive rotation, since both the first deflector rod 13 and the second eccentric rod 18 have a fixed range of motion, a limiting block 16 is used to limit the rotation angle to prevent it from exceeding the set range. To better limit the rotation effectively and without obstruction during normal rotation, the limiting block 16 in this embodiment is shaft-connected to the mounting cavity 5. The mounting cavity 5 is provided with a limiting cavity 19 at the limiting block 16, allowing the limiting block 16 to rotate only within a specific range. The side of the second rotating disk 12 near the limiting protrusion 15 is provided with an abutting surface 20. The edge of the abutting surface 20 abuts against the edge of the limiting block 16. In this way, during normal rotation, the abutting surface 20 contacts the side of the limiting block 16 but does not form abutment. This ensures the rotational stability of the second rotating disk 12, and the rotation of the limiting block 16 changes direction, causing it to rotate synchronously during the return rotation, thus forming abutment again. The limiting function relies on the locking mechanism between the limiting block 16 and the limiting protrusion 15 to create a restriction.

[0030] Furthermore, to avoid jamming, both ends of the contact surface 20 of the second rotating disk 12 and the edge of the limiting block 16 in this embodiment are smooth surfaces.

[0031] Furthermore, in this embodiment, during the locking or unlocking process of the lock cylinder 10, a clutch structure is established to prevent the second rotating disk 12 from rotating synchronously when the bolt 6 rebounds. Specifically, two symmetrical protrusions 21 are provided on the side of the first rotating disk 11 in this embodiment, and the second rotating disk 12 is provided with a sleeve 22. Two communicating 90-degree interval grooves 23 are provided in the sleeve 22, and the protrusions 21 are respectively placed in the 90-degree interval grooves 23. In this way, by relying on the range of the 90-degree interval grooves 23, a certain rotation distance can be staggered, so that they do not rotate synchronously when necessary.

[0032] Furthermore, to facilitate the retraction of the safety pin 8 from inside the vehicle, a coaxial gear 24 is installed within the mounting cavity 5 in this embodiment. The coaxial gear 24 meshes with the gear surface 14 of the second rotating disk 12. A knob 25 is provided on the inner end face of the lock body 1. The rotation shaft of the knob 25 is located within the mounting cavity 5 and is equipped with a linkage gear 26, which is connected to the coaxial gear 24. Thus, the user can rotate the knob 25 to activate the internal mechanism, subsequently driving the second rotating disk 12 and the actuating gear 17 to retract the safety pin.

[0033] Furthermore, to meet the requirements of intelligent quick lock and locking, a first reduction motor 27 is provided in the mounting cavity 5 of this embodiment. The output shaft of the first reduction motor 27 is connected to the coaxial gear 24 as a whole. At the same time, a third sliding cavity 28 and a second reduction motor 29 are also provided in the lock body 1. A sliding strip 30 is placed in the third sliding cavity 28. One end of the sliding strip 30 is bent to form an overlapping end 31. A guide block 32 is provided at the other end of the sliding strip 30. A guide hole 33 is provided in the third sliding cavity 28 at the guide block 32. The guide block 32 is placed in the guide hole 33. A rack surface 34 is provided on the sliding strip 30. The second reduction motor 29 meshes with the rack surface 34 through a gear set 35. An overlapping edge 36 is provided on the upper part of the latch 6. The overlapping end 31 is placed at the overlapping edge 36. As the sliding strip 30 moves, it drags the latch 6 to retract. A tactile switch 37 is provided at one end of the guide hole 33. In this way, the first reduction motor 27 and the second reduction motor 29 can drive the movement of the safety pin 8 and the bolt 6 respectively, which can be applied to other smart unlocking applications such as fingerprint unlocking, password unlocking, and APP unlocking.

[0034] Furthermore, to meet the need for quick internal unlocking, the inner end face of the lock body 1 in this embodiment is also hinged with an inner handle 38. The inner handle 38 is provided with a plug rod 39, and the bolt 6 is provided with a socket 40. The plug rod 39 is placed in the socket 40, so that the bolt 6 can be directly retracted by turning the inner handle 38.

[0035] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A recreational vehicle door lock capable of synchronously operating a deadbolt and a strike, characterized by: The utility model provides a lock body (1) and fixed installation in the outer end surface of outer handle (2), the lock body (1) is provided with first slide cavity (3), second slide cavity (4) and installation cavity (5) inside, first slide cavity (3) and second slide cavity (4) all are communicated with installation cavity (5), the lock tongue (6) and spring (7) are placed in first slide cavity (3), the spring (7) top touches lock tongue (6), and under the action of spring (7), the top end of lock tongue (6) keeps outwardly popping out, second slide cavity (4) places safety pin (8), the inner end of lock tongue (6) and safety pin (8) is placed in installation cavity (5) and all is provided with strip mouth (9), the lock cylinder (10) is set up on the outer handle (2) of lock body (1), the lock cylinder (10) is in order through the shell of outer handle (2) and lock body (1) and is placed in installation cavity (5), the output shaft of lock cylinder (10) is connected with first rotary disc (11), first rotary disc (11) is sleeved with the second rotary disc (12) that can be driven by first rotary disc (11), first rotary disc (11) is provided with first eccentric rod (13), first eccentric rod (13) is placed in the strip mouth (9) of lock tongue (6), and with the rotation of first rotary disc (11) pushes lock tongue (6) outwardly or pulls lock tongue (6) inwardly, the side of second rotary disc (12) is provided with gear face (14) and limiting convex (15), the installation cavity (5) is provided with limiting block (16) at the movement track of limiting convex (15), the installation cavity (5) is installed with the knob gear (17), the knob gear (17) is engaged with the gear face (14) of second rotary disc (12), the knob gear (17) is provided with second eccentric rod (18), and second eccentric rod (18) is placed in the strip mouth (9) of safety pin (8).

2. The RV door lock of claim 1 wherein: The limiting block (16) is connected to the installation cavity (5), the installation cavity (5) is provided with a limiting cavity (19) at the limiting block (16), the side of the second rotary disc (12) close to the limiting convex (15) is provided with a contact surface (20), and the edge of the contact surface (20) is in contact with the edge of the limiting block (16).

3. A recreational vehicle door lock capable of synchronously operating a deadbolt and a pin tumbler, as recited in claim 2, wherein: Both ends of the contact surface (20) of the second rotary disc (12) and the edge of the limiting block (16) are smooth surfaces.

4. A RV door lock with synchronously linked locking tongue and safety pin as described in claim 3, characterized in that: The side of the first rotary disc (11) is provided with two symmetrical convex heads (21), the second rotary disc (12) is provided with a sleeve opening, the sleeve opening (22) is provided with two 90-degree interval grooves (23) in communication, and the convex heads (21) are respectively placed in the 90-degree interval grooves (23).

5. A recreational vehicle door lock capable of synchronously operating a deadbolt and a pin tumbler, as recited in claim 4, wherein: The installation cavity (5) is installed with a coaxial gear (24), the coaxial gear (24) is engaged with the gear face (14) of the second rotary disc (12), the inner end surface of the lock body (1) is provided with a rotary knob (25), the rotary shaft of the rotary knob (25) is placed in the installation cavity (5) and is provided with a linkage gear (26), and the linkage gear (26) is connected with the coaxial gear (24).

6. A recreational vehicle door lock capable of synchronously operating a deadbolt and a pin tumbler, as recited in claim 5, wherein: The first reduction motor (27) is arranged in the installation cavity (5), the output shaft of the first reduction motor (27) is connected with the coaxial gear (24) integrally, the lock body (1) is further provided with a third sliding cavity (28) and a second reduction motor (29), the sliding bar (30) is arranged in the third sliding cavity (28), one end of the sliding bar (30) is bent to form an overlapping end (31), the other end of the sliding bar (30) is provided with a guide block (32), the third sliding cavity (28) is provided with a guide hole (33) at the guide block (32), the guide block (32) is arranged in the guide hole (33), the sliding bar (30) is provided with a rack surface (34), the second reduction motor (29) is engaged with the rack surface (34) through a gear set (35), the lock tongue (6) is provided with an overlapping edge (36), the overlapping end (31) is arranged at the overlapping edge (36), with the movement of the sliding bar (30), the lock tongue (6) is dragged to retreat.

7. A recreational vehicle door lock capable of synchronously operating a deadbolt and a pin tumbler, as recited in claim 6, wherein: One end of the guide hole (33) is provided with a touch switch (37).

8. A RV door lock with synchronously linked locking tongue and safety pin as described in claim 1, characterized in that: The inner end surface of the lock body (1) is further hinged with an inner handle (38), the inner handle (38) is provided with a plug rod (39), the lock tongue (6) is provided with a socket (40), the plug rod (39) is arranged in the socket (40).

Images