Motor home door lock transmission device

Abstract

The utility model discloses a motor home door lock transmission device, which relates to the technical field of motor home door locks, and comprises a first lock body and a second lock body, the first lock body and the second lock body are detachably connected, a transmission mechanism is arranged on the first lock body and / or the second lock body, and the transmission mechanism comprises a spring bolt capable of linearly sliding. The first gear is used for pushing the spring bolt to slide, an eccentric part far away from the circle center of the gear is arranged on the radial surface of the first gear, a through groove is formed in the spring bolt, the eccentric part is inserted into the through groove and is in sliding connection with the through groove, and the through groove is provided with a farthest end far away from the center line of the spring bolt; the eccentric part and the spring bolt form a triangular supporting structure and are self-locked. The eccentric part is matched with the through groove in the spring bolt, when the eccentric part moves to the farthest end of the through groove, the eccentric part, the short rod part and the long rod part form a right triangle, self-locking is achieved, and therefore it is guaranteed that the spring bolt cannot be pushed or vibrated by external force to retract into the door lock.

Description

Technical Field

[0001] The utility model relates to the technical field of RV door locks, in particular to a RV door lock transmission device. Background Art

[0002] As the name suggests, an RV door lock refers to the door locking system installed on an RV. As a specialized type of vehicle, RVs not only possess the basic functions of a typical car but also incorporate residential functions. Therefore, their door lock systems are unique and important. The primary function of an RV door lock is similar to that of a regular door lock: to ensure security and prevent unauthorized entry.

[0003] The invention patent with publication number US20240151071A1 in the existing United States patent discloses a "Deadbolt drive mechanism, handle fixing mechanism, and intelligent recreational vehicle lock". The door lock of this patent has an obvious safety hazard in its structure. Specifically, after the lock tongue is successfully ejected and locked in position, it lacks the necessary self-locking or lock holding mechanism. Therefore, once the lock tongue is directly pressed by an external force, whether it is a deliberate attempt at destruction or an unintentional touch, the lock tongue will be easily pressed back into the lock body. Moreover, during the driving of the RV, if the RV is subjected to strong bumps, the lock tongue may also retract into the lock body. Therefore, this design that lacks a self-locking function directly weakens the protection capability of the door lock and increases the safety risk.

[0004] Therefore, we propose a RV door lock transmission device to solve the above-mentioned technical problems. Utility Model Content

[0005] The utility model provides a door lock transmission device for a recreational vehicle to solve the problems raised by the above background technology.

[0006] In order to achieve the above-mentioned object, the present utility model provides a motorhome door lock transmission device, comprising a first lock body and a second lock body, wherein the first lock body and the second lock body are detachably connected, and a transmission mechanism is provided on the first lock body and / or the second lock body;

[0007] The transmission mechanism includes a locking tongue that can slide linearly, and a first gear for pushing the locking tongue to slide;

[0008] An eccentric piece is provided on the radial surface of the first gear and is away from the center of the gear. A through slot is provided on the lock tongue. The eccentric piece is inserted into the through slot and is slidably connected to the through slot.

[0009] The through slot has a farthest end away from the center line of the lock tongue;

[0010] When the eccentric piece is located at the farthest end, the eccentric piece and the locking tongue form a triangular support structure and are self-locking.

[0011] Furthermore, the first lock body is provided with a slideway, the lock tongue is located in the slideway and is slidably connected to the slideway, and the first gear is rotatably installed in the first lock body and is located on one side of the slideway.

[0012] Furthermore, the locking tongue is L-shaped and has a long rod portion and a short rod portion, and a right angle is formed between the long rod portion and the short rod portion.

[0013] Furthermore, the through slot is provided on the short rod portion, the center line of the locking tongue is located on the long rod portion, and the farthest end is the end of the through slot farthest away from the long rod portion.

[0014] Furthermore, when the eccentric member is located at the farthest end, the eccentric member, the short rod portion and the long rod portion form a right triangle and achieve self-locking.

[0015] Furthermore, the transmission mechanism also includes a second gear, which is rotatably mounted in the first lock body and meshes with the first gear.

[0016] Furthermore, a motor is installed in the first lock body, and a power output shaft of the motor is connected to the second gear.

[0017] Furthermore, a central shaft is inserted into the center of the first gear, and a knob switch and a mechanical lock core are respectively installed at both ends of the central shaft, and the knob switch and the mechanical lock core pass through the first lock body and the second lock body respectively.

[0018] Furthermore, the first lock body and the second lock body are arranged in parallel, and a plurality of connection holes are provided on a side of the first lock body facing the second lock body, and studs are inserted into the plurality of connection holes.

[0019] Furthermore, a plurality of through holes are provided on a side of the second lock body facing the second lock body, and the plurality of through holes are arranged in one-to-one correspondence with the plurality of studs; screws are inserted between the plurality of through holes and the corresponding studs.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The eccentric piece cooperates with the through slot on the lock tongue. When the eccentric piece moves to the farthest end of the through slot, the eccentric piece, the short rod and the long rod form a right triangle, achieving self-locking, thereby ensuring that the lock tongue will not be pushed or vibrated by external force and retracted into the door lock.

[0022] The detachable connection structure between the stud and the connecting hole improves the installation convenience of the door lock, avoids the installation difficulties caused by size mismatch, and simplifies the door lock installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0024] Figure 2 for Figure 1 Schematic diagram of the structure from another perspective.

[0025] Figure 3 for Figure 1 Schematic diagram of the structure from another perspective.

[0026] Figure 4 It is a schematic diagram of the structure of the utility model after being split.

[0027] Figure 5 This is a structural schematic diagram of the first lock body of the utility model from the back side.

[0028] Figure 6 for Figure 5 Schematic diagram of the internal structure.

[0029] Figure 7 for Figure 6 Schematic diagram of the structure after removing the lock tongue.

[0030] Figure 8 for Figure 5 Schematic diagram of the self-locking state.

[0031] Figure 9 It is a structural diagram of the transmission mechanism of the utility model.

[0032] Figure 10 for Figure 9 Schematic diagram of the structure from another perspective.

[0033] In the figure: first lock body (100); connecting hole (101); stud (102); slideway (103) (103); second lock body (200); through hole (201); transmission mechanism (300); lock tongue (301); long rod (3011); short rod (3012); through groove (3013); first gear (302); eccentric member (3021); central shaft (3022); second gear (303); knob switch (304); mechanical lock core (305); motor (306). DETAILED DESCRIPTION

[0034] See also Figures 1 to 10 .

[0035] The utility model provides a door lock transmission device for a recreational vehicle, comprising a first lock body 100 and a second lock body 200. The first lock body 100 and the second lock body 200 are detachably connected.

[0036] Specifically, if Figures 2 to 5 As shown, the first lock body 100 and the second lock body 200 are arranged in parallel. The first lock body 100 has a plurality of connection holes 101 on the side facing the second lock body 200. Each of the connection holes 101 is connected to a stud 102, which is used to increase the installation distance between the first lock body 100 and the second lock body 200. The second lock body 200 has a plurality of through holes 201 on the side facing the second lock body 200. The through holes 201 correspond to the studs 102 in a one-to-one manner. Screws are inserted between the through holes 201 and the corresponding studs 102 to secure the first lock body 100 and the second lock body 200.

[0037] In this embodiment, the interior of the stud 102 is hollow and has an internal thread, and the stud 102 is plugged into the connecting hole 101 through the thread, so that the stud 102 and the connecting hole 101 can be disassembled.

[0038] Therefore, when installing the door lock, the user can pre-align the portion of the first lock body 100 without the stud 102 with the door lock mounting hole reserved in the RV door panel. Without the obstruction of the stud 102, the first lock body 100 can be more smoothly and unobstructedly inserted into the door lock mounting hole, avoiding installation difficulties caused by size mismatch. This step greatly simplifies the installation process.

[0039] After the first lock body 100 is successfully inserted into the door panel, the user only needs to align the stud 102 with the door lock installation hole and screw it in. After the stud 102 is installed, its length effectively lengthens the connection between the first lock body 100 and the second lock body 200, making it easier to install the second lock body 200.

[0040] Once the stud 102 is installed, the user can insert the second lock body 200 into the other end of the door panel, ensuring that it is horizontally aligned with the first lock body 100. A screw is then inserted between the through hole 201 and the installed stud 102, and the tightening force of the screw securely connects the first lock body 100 and the second lock body 200, completing the door lock installation.

[0041] It's worth noting that this installation structure eliminates the need for tedious enlargement when the reserved door lock mounting hole on an RV door panel is smaller than the standard dimensions. The removable connection between stud 102 and connection hole 101 allows for smooth installation even in smaller door lock mounting holes. This approach not only improves installation convenience but also reduces the risk of damage to the door lock due to improper installation, further enhancing overall product quality and user satisfaction.

[0042] In this embodiment, the length of the studs can be selected based on the thickness of the door panels. It is understood that when the door panels are thin, shorter studs are used for connection; when the door panels are thick, longer studs are used for connection. By providing studs of different lengths, the door lock can be easily installed on door panels of varying thicknesses.

[0043] like Figures 6 to 10 As shown, the self-locking structure of the lock tongue 301 in the present invention adopts the following technical solution: a transmission mechanism 300 is provided on the first lock body 100 and / or the second lock body 200; the transmission mechanism 300 includes a lock tongue 301 that can slide linearly, and a first gear 302 for pushing the lock tongue 301 to slide; the radial surface of the first gear 302 is provided with an eccentric piece 3021 away from the center of the gear circle, and the eccentric piece 3021 is inserted into the lock tongue 301 and is slidably connected to the lock tongue 301; the eccentric piece 3021 and the lock tongue 301 have an active state and a self-locking state between them; when in the self-locking state, the eccentric piece 3021 and the lock tongue 301 form a triangular support structure.

[0044] In this embodiment, the transmission mechanism 300 is mounted within the first lock body 100. The eccentric member 3021 is a circular shaft. The first lock body 100 defines a slideway 103. The lock tongue 301 is located within and slidably connected to the slideway 103. The first gear 302 is rotatably mounted within the first lock body 100 and located on one side of the slideway 103. The lock tongue 301 is L-shaped and has a long rod portion 3011 and a short rod portion 3012, forming a right angle between the long rod portion 3011 and the short rod portion 3012. The short rod portion 3012 is positioned toward the first gear 302 and defines a through slot 3013. The eccentric member 3021 is inserted into and slidably connected to the through slot 3013. The through slot 3013 has a distal end that is distal to the long rod portion 3011. When the eccentric member 3021 is located at the farthest end, the eccentric member 3021 , the short rod portion 3012 and the long rod portion 3011 form a right triangle, achieving a self-locking state.

[0045] See also Figures 6 to 8The lock tongue 301 can slide left and right on the slideway 103. The slideway 103 serves as a track for the lock tongue 301 to move. It not only ensures the stability and accuracy of the lock tongue 301 during the sliding process, but also provides it with necessary guidance and support, thereby improving the sliding stability of the lock tongue 301. When the lock tongue 301 slides to the right, the lock tongue 301 will slide out of the first lock body 100 and insert into the corresponding door sill lock hole, thereby locking the door.

[0046] like Figure 5 As shown, a cover plate is installed on the side of the first lock body 100 facing the second lock body 200. When the cover plate is installed on the first lock body 100, the slide 103 can be closed. Thus, the lock tongue 301 is positioned in the first lock body 100 to prevent the lock tongue 301 from shaking back and forth.

[0047] The first gear 302 can rotate under external force. As the first gear 302 rotates, the eccentric member 3021 on the first gear 302 also rotates synchronously. During the rotation of the eccentric member 3021, due to its sliding connection with the through slot 3013, the eccentric member 3021 can push the lock tongue 301 to slide horizontally. This converts the circular motion of the first gear 302 into linear motion of the lock tongue 301.

[0048] See also Figure 8 When the eccentric member 3021 moves to the end of the through slot 3013 farthest from the long rod 3011, the eccentric member 3021, the short rod 3012, and the long rod 3011 form a right triangle. Simultaneously, the plane formed between the first gear 302 and the eccentric member 3021 is substantially parallel to the long rod 3011. Consequently, when the lock tongue 301 is pressed by an external force, the eccentric member 3021 cooperates with the first gear 302 to resist the pressing force, thereby locking the lock tongue 301 and preventing it from sliding, thereby achieving self-locking. This prevents the lock tongue 301 from being pressed into the first lock body 100 by external forces, thereby improving the security of the door lock.

[0049] Of course, the lock tongue 301 is not limited to the L-shaped structure of this embodiment. In other embodiments of the lock tongue 301 (not shown), the lock tongue 301 can also be a single straight bar structure, with the width of the lock tongue 301 increased, and the through slot 3013 can be provided at the end near the first gear 302, with the end of the through slot 3013 away from the centerline of the lock tongue 301 being the farthest end. In this way, the straight bar lock tongue 301 can also have the self-locking function.

[0050] Of course, the lock tongue 301 is not limited to the two shapes mentioned above, and can also be a trapezoid, a triangle, or any other geometric shape suitable for the self-locking mode of the present invention.

[0051] like Figure 9 and Figure 10 As shown, the transmission mechanism 300 also includes a second gear 303, which is rotatably installed in the first lock body 100 and meshes with the first gear 302. A motor 306 is installed in the first lock body 100, and the power output shaft of the motor 306 is connected to the second gear 303. The center of the first gear 302 is plugged with a central shaft 3022, and the two ends of the central shaft 3022 are respectively installed with a knob switch 304 and a mechanical lock core 305, and the knob switch 304 and the mechanical lock core 305 respectively pass through the first lock body 100 and the second lock body 200.

[0052] In this embodiment, the knob switch 304 is set on the side of the door lock facing the room. Turning the knob switch 304 by hand can drive the central axis 3022 and the first gear 302 to rotate. The rotating first gear 302 drives the lock tongue 301 to slide, so that the door lock can be unlocked or locked manually.

[0053] The mechanical lock cylinder 305 is located on the side of the door lock facing the outside, and a suitable key can be inserted into the mechanical lock cylinder 305. When the key is inserted into the mechanical lock cylinder 305, the mechanical lock cylinder 305 is unlocked and can be rotated by the key, which in turn drives the central shaft 3022 and the first gear 302 to rotate. The rotating first gear 302 drives the lock tongue 301 to slide, thereby allowing the door lock to be unlocked or locked using the key.

[0054] The motor 306 can drive the second gear 303 to rotate. When the second gear 303 rotates, since the second gear 303 is engaged with the first gear 302, the second gear 303 will also synchronously drive the first gear 302 to rotate. The rotating first gear 302 drives the lock tongue 301 to slide, so that the door lock can be unlocked or locked in an electric manner.

[0055] Motor 306 can be equipped with an intelligent control panel. This control panel can be equipped with a fingerprint unlocking module, a password unlocking module, a wireless remote control unlocking module, a video surveillance module, a facial recognition module, a card swiping module, an NFC module, and a Wi-Fi or Bluetooth module. By using multiple unlocking methods, the door lock can be unlocked in a variety of ways, achieving intelligent control unlocking and improving user convenience. These intelligent control methods are well known in the art and will not be described in detail in this application.

Claims

1. A door lock transmission device for a recreational vehicle, comprising a first lock body (100) and a second lock body (200), wherein the first lock body (100) and the second lock body (200) are detachably connected, and characterized in that: A transmission mechanism (300) is provided on the first lock body (100) and / or the second lock body (200); The transmission mechanism (300) comprises a locking tongue (301) capable of linear sliding, and a first gear (302) for pushing the locking tongue (301) to slide; An eccentric piece (3021) is provided on the radial surface of the first gear (302) and is away from the center of the gear circle. A through slot (3013) is provided on the locking tongue (301). The eccentric piece (3021) is inserted into the through slot (3013) and is slidably connected to the through slot (3013). The through slot (3013) has a farthest end away from the center line of the locking tongue (301); When the eccentric piece (3021) is located at the farthest end, the eccentric piece (3021) and the locking tongue (301) form a triangular support structure and are self-locking.

2. The RV door lock transmission device according to claim 1, characterized in that: The first lock body (100) is provided with a slideway (103), the lock tongue (301) is located in the slideway (103) and is slidably connected to the slideway (103), and the first gear (302) is rotatably mounted in the first lock body (100) and is located on one side of the slideway (103).

3. The RV door lock transmission device according to claim 1, characterized in that: The locking tongue (301) is L-shaped and comprises a long rod portion (3011) and a short rod portion (3012), wherein a right angle is formed between the long rod portion (3011) and the short rod portion (3012).

4. The RV door lock transmission device according to claim 3, characterized in that: The through slot (3013) is formed on the short rod portion (3012), the center line of the locking tongue (301) is located on the long rod portion (3011), and the farthest end is the end of the through slot (3013) farthest from the long rod portion (3011).

5. The RV door lock transmission device according to claim 4, characterized in that: When the eccentric member (3021) is located at the farthest end, the eccentric member (3021), the short rod portion (3012) and the long rod portion (3011) form a right triangle and achieve self-locking.

6. The RV door lock transmission device according to claim 1, characterized in that: The transmission mechanism (300) further comprises a second gear (303), wherein the second gear (303) is rotatably mounted in the first lock body (100) and meshes with the first gear (302).

7. The RV door lock transmission device according to claim 6, characterized in that: A motor (306) is installed in the first lock body (100), and a power output shaft of the motor (306) is connected to the second gear (303).

8. The RV door lock transmission device according to claim 7, characterized in that: A central shaft (3022) is inserted into the center of the first gear (302), and a knob switch (304) and a mechanical lock core (305) are respectively installed at both ends of the central shaft (3022), and the knob switch (304) and the mechanical lock core (305) respectively pass through the first lock body (100) and the second lock body (200).

9. The RV door lock transmission device according to claim 1, characterized in that: The first lock body (100) and the second lock body (200) are arranged in parallel, and a plurality of connection holes (101) are provided on a side of the first lock body (100) facing the second lock body (200), and the plurality of connection holes (101) are all plugged with studs (102).

10. The RV door lock transmission device according to claim 9, characterized in that: The second lock body (200) is provided with a plurality of through holes (201) on a side facing the second lock body (200), and the plurality of through holes (201) are arranged in one-to-one correspondence with the plurality of studs (102); screws are inserted between the plurality of through holes (201) and the corresponding studs (102).

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