Motor home door lock

Abstract

The utility model discloses a motor home door lock. Comprising an outer panel, a lock body and an inner panel, a first sliding cavity, a second sliding cavity and a driving cavity are formed in the lock body, a slidable spring bolt and a safety catch are arranged in the first sliding cavity and the second sliding cavity respectively, a motor and a rotatable rotating shaft are installed in the driving cavity, a first gear is installed on an output shaft of the motor, and an eccentric rod is further arranged on the upper end face of the first gear; a strip-shaped sliding opening is formed in the inner end of the safety catch, and the eccentric rod is inserted into the strip-shaped sliding opening, so that the other end of the safety catch extends out of or retracts into the lock body. All transmission designs about a shifting rod and a hinge rod are removed, gear transmission is adopted for the whole, the whole operation is more stable, the failure rate is reduced, meanwhile, after the safety catch extends out of the lock body, the eccentric rod used for controlling the safety catch to move is arranged below the horizontal line, and even if vibration occurs, the safety catch can be prevented from moving by means of the gravity effect. The eccentric rod can be effectively prevented from rotating, and the safety catch can stably stretch out.

Description

Technical Field

[0001] The utility model relates to the technical field of door locks, in particular to a door lock for a recreational vehicle. Background Art

[0002] As we all know, RVs are fashionable vehicles introduced from abroad. The home facilities on the vehicles include: bedding, stoves, refrigerators, cabinets, sofas, dining tables and chairs, washing facilities, air conditioners, televisions, stereos and other furniture and electrical appliances. They can be divided into driving area, living area, bedroom area, sanitary area, kitchen area, etc. RVs are fashionable products that integrate "clothing, food, housing and transportation" and realize "traveling in life and living in travel". It is a movable vehicle with basic facilities necessary for home. Among them, there are differences in the doors of RVs compared to regular car doors, especially the door locks on the doors.

[0003] At present, the existing RV door locks are mostly driven by a lever or a hinged rod, or a lever, a hinged rod and a gear in a linked transmission structure. On the one hand, this transmission will increase the design requirements of the internal space of the door lock, making the door lock too large, which is not conducive to the delicate design of the door lock. On the other hand, there is a gap between the lever and the hinged rod, which is prone to drive failures and even inability to unlock during the RV operation or when vibration occurs. If all gears are used directly, although the drive can be stable, how to occupy a small space and synchronously drive the safety bolt (the lock tongue used for insurance) will be a major problem that needs to be solved now. Utility Model Content

[0004] In view of the deficiencies in the above-mentioned prior art, the purpose of the present utility model is to provide a motorhome door lock with full gear transmission that occupies a small space.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A motorhome door lock, comprising an outer panel, a lock body and an inner panel installed on the motorhome door, wherein the lock body is located between the outer panel and the inner panel, wherein a first sliding cavity, a second sliding cavity and a driving cavity are arranged in the lock body, wherein a slidable lock tongue and a safety bolt are arranged in the first sliding cavity and the second sliding cavity respectively, wherein a motor and a rotatable rotating shaft are installed in the driving cavity, wherein a first gear is installed on the output shaft of the motor, and an eccentric rod is also arranged on the upper end surface of the first gear;

[0007] The inner end of the safety bolt is provided with a strip-shaped sliding opening, the eccentric rod is inserted into the strip-shaped sliding opening, and with the forward and reverse rotation of the first gear, the other end of the safety bolt is extended out of or retracted into the lock body, the center of the circle of the first gear is defined as a horizontal line, after the safety bolt extends out of the lock body, the eccentric rod is placed below the horizontal line, and the motor acts as a limiting member to limit the continued rotation of the first gear, a second gear is provided on the rotating shaft, the second gear is meshed with the first gear, and one end of the rotating shaft is placed on the inner panel and is provided with a rotating handle;

[0008] At least one spring is arranged between one end of the lock tongue and the bottom of the first sliding cavity, and under the action of the spring, the other end of the lock tongue is always kept extending out of the lock body, the outer panel is hingedly connected with an outer handle, and the inner panel is hingedly connected with an inner handle, and a socket position is arranged on the lock tongue, and both the outer handle and the inner handle are provided with a lever, and the top end of the lever is inserted into the socket position of the lock tongue, and as the outer handle or the inner handle is rotated, the lever will push the lock tongue to retract the lock tongue into the lock body.

[0009] Preferably, a through hole is provided between the first slide cavity and the second slide cavity, a freely rolling limit pin is placed in the through hole, a card slot is provided on the side of the lock tongue, and an arc-shaped slide is provided on the side of the safety bolt. When the entrance of the arc-shaped slide is docked with the through hole, the lower half of the limit pin will roll into the arc-shaped slide, so that the limit pin will be disengaged from the card slot, and when the safety bolt extends out of the lock body, the arc-shaped slide will gradually push up the limit pin, so that the limit pin will be stuck in the card slot again.

[0010] Preferably, the limiting pin is cylindrical or spherical.

[0011] Preferably, a sleeve is provided at the other end of the rotating shaft, and two interconnected 90-degree spaced grooves are provided in the sleeve. A lock core is provided on the outer panel, and the rotating part of the lock core is docked with the sleeve of the rotating shaft, and two flush protrusions are provided on the rotating part of the lock core, and the protrusions are placed in the 90-degree spaced grooves.

[0012] Preferably, the outer panel or the inner panel is provided with a circuit main board, the outer panel is equipped with a fingerprint recognition module and a password key module which can start the motor after recognition, the inner panel is provided with a battery holder which can meet the battery replacement requirements, and the fingerprint recognition module, password key module, battery holder and motor are all electrically connected to the circuit main board.

[0013] Preferably, the outer panel is provided with a receiving cavity at the outer handle, so that the outer handle is placed in the receiving cavity, and a gap for inserting a hand is reserved between the grip of the outer handle and the inner wall of the receiving cavity.

[0014] Preferably, the motor is a reduction motor with a reduction gearbox.

[0015] Preferably, the battery installed in the battery holder is a rechargeable battery, the circuit main board is provided with a charging port, and the insertion port of the charging port is placed outside.

[0016] Due to the adoption of the above scheme, the utility model removes all transmission designs about the lever and the hinged rod, and adopts gear transmission as the whole, so that the overall operation is more stable and the occurrence of failure rate is reduced. At the same time, after the safety bolt extends out of the lock body, the eccentric rod used to control the activity of the safety bolt is placed below the horizontal line, so that even if vibration occurs, the eccentric rod can be effectively prevented from rotating with the help of gravity, ensuring that the safety bolt is stably extended. In addition, the motor is used as a limit eccentric rod to continue to rotate downward during the vibration process, which not only ensures the limiting effect, but also eliminates the design of redundant components, meeting the needs of the sophisticated design concept. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the front side of an embodiment of the utility model.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the back of an embodiment of the utility model.

[0019] Figure 3 It is a structural explosion diagram of an embodiment of the utility model.

[0020] Figure 4 It is a structural schematic diagram of a lock body according to an embodiment of the utility model.

[0021] Figure 5 It is a structural schematic diagram of the connection between the motor and the safety bolt of an embodiment of the utility model.

[0022] Figure 6 It is a structural schematic diagram of the connection between the motor and the safety pin in another aspect of an embodiment of the utility model.

[0023] Figure 7 It is a structural schematic diagram of the connection between the rotating shaft and the lock core in an embodiment of the utility model. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] like Figures 1 to 7 As shown, a motorhome door lock provided in this embodiment comprises an outer panel 1, a lock body 2 and an inner panel 3 installed on the motorhome door, wherein the lock body 2 is located between the outer panel 1 and the inner panel 3, and a first sliding cavity 21, a second sliding cavity 22 and a driving cavity 23 are arranged in the lock body 2, wherein a slidable lock tongue 24 and a safety bolt 25 are respectively arranged in the first sliding cavity 21 and the second sliding cavity 22, and a motor 26 and a rotatable shaft 27 are installed in the driving cavity 23, and a first gear 28 is installed on the output shaft of the motor 26, and an eccentric rod 201 is further arranged on the upper end surface of the first gear 28, and the motor 26 is a reduction motor with a reduction gear box to improve the driving stability of the motor 26;

[0028] The inner end of the safety bolt 25 is provided with a strip-shaped sliding opening 202, and the eccentric rod 201 is inserted into the strip-shaped sliding opening 202, and with the forward and reverse rotation of the first gear 28, the other end of the safety bolt 25 is extended out of or retracted into the lock body 2, and the center of the circle of the first gear 28 is defined as a horizontal line. After the safety bolt 25 extends out of the lock body 2, the eccentric rod 201 is placed below the horizontal line, and the motor 26 acts as a limiting member to limit the first gear 28 from continuing to rotate. The rotating shaft 27 is provided with a second gear 203, and the second gear 203 is meshed with the first gear 28, and one end of the rotating shaft 27 is placed on the inner panel 3 and is provided with a rotating handle 31;

[0029] At least one spring 204 is arranged between one end of the lock tongue 24 and the bottom of the first sliding cavity 21, and under the action of the spring 204, the other end of the lock tongue 24 is always kept extending out of the lock body 2, the outer panel 1 is hingedly connected with the outer handle 11, and the inner panel 3 is hingedly connected with the inner handle 32, and the lock tongue 24 is provided with a socket position 205, and the outer handle 11 and the inner handle 32 are both provided with a lever 100, and the top end of the lever 100 is inserted into the socket position 205 of the lock tongue 24, and as the outer handle 11 or the inner handle 32 rotates, the lever 100 will push the lock tongue 24 to retract the lock tongue 24 into the lock body 2.

[0030] This embodiment mainly removes all transmission designs about the lever and the hinged rod, and adopts gear transmission as the whole, so that the overall operation is more stable and the occurrence of failure rate is reduced. At the same time, after the safety bolt 25 extends out of the lock body 2, the eccentric rod 201 used to control the activity of the safety bolt is placed below the horizontal line, so that even if vibration occurs, the eccentric rod 201 can be effectively prevented from rotating with the help of gravity, ensuring that the safety bolt 25 is stably extended. In addition, the motor 26 is used as a component to limit the eccentric rod 201 to continue to rotate downward during the vibration process, which not only ensures the limiting effect, but also eliminates the design of redundant components, meeting the requirements of the sophisticated design concept.

[0031] In specific operation, the safety bolt 25 is not extended by default, and when the safety bolt 25 needs to be extended (i.e. locked), the motor 26 is driven, and the first gear 28 rotates clockwise, and the eccentric rod 201 moves in the strip-shaped sliding opening 202, and pushes the safety bolt 25 outward, until one end of the safety bolt 25 is pushed to the outside of the lock body 2, and the eccentric rod 201 needs to move below the horizontal line in setting, and then the locking is completed. When unlocking is required, the motor 26 only needs to drive the first gear 28 to rotate counterclockwise, and the safety bolt 25 can be retracted into the lock body 2, so as to complete the unlocking.

[0032] Furthermore, in order to play a better insurance role and prevent the outer handle 11 or the inner handle 32 from being able to be bent when not unlocked, a through hole 206 is provided between the first slide cavity 21 and the second slide cavity 22 of the present embodiment, and a limit pin 207 that can roll freely is placed in the through hole 206, and a card slot 208 is provided on the side of the lock tongue 24, and an arc-shaped slide 209 is provided on the side of the safety bolt 25. When the entrance of the arc-shaped slide 209 is docked with the through hole 206, the lower half of the limit pin 207 will roll into the arc-shaped slide 209, so that the limit pin 207 is disengaged from the card slot 208, and when the safety bolt 25 extends out of the lock body 2, the arc-shaped slide 209 will gradually push up the limit pin 207, so that the limit pin 207 is stuck in the card slot 208 again. In this way, the movement of the lock tongue 24 can be blocked by a single limit pin 207, so that the outer handle 11 or the inner handle 32 cannot be moved, so that the user can know that the door is locked because the outer handle 11 or the inner handle 32 cannot be moved.

[0033] Furthermore, in order to make the limiting pin 207 roll more smoothly, the limiting pin 207 in this embodiment is cylindrical or spherical.

[0034] Furthermore, for the lock, when necessary, it is also necessary to have the condition of opening the door with a key. Therefore, a socket 210 is provided at the other end of the rotating shaft 27, and two connected 90-degree interval grooves 211 are provided in the socket 210. A lock core 12 for unlocking the lock with a key is provided on the outer panel 1. The rotating part of the lock core 12 is connected to the socket 210 of the rotating shaft 27, and two flush protrusions 101 are provided on the rotating part of the lock core 12, and the protrusions 101 are placed in the 90-degree interval grooves 211. By virtue of two connected 90-degree interval grooves 211 in the rotating shaft 27, the lock cylinder 12 can rotate 180 degrees. The lock cylinder 12 rotates 90 degrees counterclockwise to unlock, rotates 90 degrees to remove the key as the origin, and rotates 90 degrees clockwise to lock. When the lock cylinder 12 is at the origin with the key pulled out, the other 90-degree interval groove 211 can be used for the safety bolt 25 linked to the motor to unlock and lock, so as to achieve non-interference between the lock cylinder 12 and the motor 26 when they are unlocked respectively.

[0035] Furthermore, in order to realize multiple unlocking modes, the outer panel 1 or the inner panel 2 of the present embodiment is provided with a circuit main board 102, the outer panel 1 is equipped with a fingerprint recognition module 13 and a password key module 14 which can start the motor 26 after identification, and the inner panel 3 is provided with a battery holder 33 which can meet the replacement of the battery 34, and the fingerprint recognition module 13, the password key module 14, the battery holder 33 and the motor 26 are all electrically connected to the circuit main board 102. No matter whether it is a key, a fingerprint or a password, only one of them needs to be selected to complete the unlocking.

[0036] Furthermore, in order to protect the outer handle 11 and prevent damage to the outer handle 11, the outer panel 1 of this embodiment is provided with a accommodating cavity 15 at the outer handle 11, so that the outer handle 11 is placed in the accommodating cavity 15, and a gap is left between the grip of the outer handle 11 and the inner wall of the accommodating cavity 15 for inserting a hand.

[0037] Furthermore, the battery 34 installed in the battery holder 33 of this embodiment is a rechargeable battery, and the circuit board 102 is provided with a charging port 103, and the insertion port of the charging port 103 is placed outside. In this way, when the battery 34 is out of power, the user can either replace the battery 34 or directly charge it, and the dual choice gives the user flexible choices in different situations.

[0038] In addition, it should be noted that in this embodiment, other gears can be added between the motor 26 and the first gear 28 and between the first gear 28 and the second gear 203 according to design requirements, and this embodiment does not limit the installation of gears.

[0039] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A motorhome door lock, characterized in that: The invention comprises an outer panel, a lock body and an inner panel installed on the door of a motorhome, wherein the lock body is located between the outer panel and the inner panel, wherein a first sliding cavity, a second sliding cavity and a driving cavity are arranged in the lock body, wherein a slidable lock tongue and a safety bolt are arranged in the first sliding cavity and the second sliding cavity respectively, wherein a motor and a rotatable rotating shaft are installed in the driving cavity, wherein a first gear is installed on the output shaft of the motor, and an eccentric rod is also arranged on the upper end surface of the first gear; The inner end of the safety bolt is provided with a strip-shaped sliding opening, the eccentric rod is inserted into the strip-shaped sliding opening, and with the forward and reverse rotation of the first gear, the other end of the safety bolt is extended out of or retracted into the lock body, the center of the circle of the first gear is defined as a horizontal line, after the safety bolt extends out of the lock body, the eccentric rod is placed below the horizontal line, and the motor acts as a limiting member to limit the continued rotation of the first gear, a second gear is provided on the rotating shaft, the second gear is meshed with the first gear, and one end of the rotating shaft is placed on the inner panel and is provided with a rotating handle; At least one spring is arranged between one end of the lock tongue and the bottom of the first sliding cavity, and under the action of the spring, the other end of the lock tongue is always kept extending out of the lock body, the outer panel is hingedly connected with an outer handle, and the inner panel is hingedly connected with an inner handle, and a socket position is arranged on the lock tongue, and both the outer handle and the inner handle are provided with a lever, and the top end of the lever is inserted into the socket position of the lock tongue, and as the outer handle or the inner handle is rotated, the lever will push the lock tongue to retract the lock tongue into the lock body.

2. A motorhome door lock as claimed in claim 1, characterized in that: A through hole is provided between the first slide cavity and the second slide cavity, a freely rolling limit pin is placed in the through hole, a card slot is provided on the side of the lock tongue, and an arc-shaped slide is provided on the side of the safety bolt. When the entrance of the arc-shaped slide is docked with the through hole, the lower half of the limit pin will roll into the arc-shaped slide, so that the limit pin will be separated from the card slot; when the safety bolt extends out of the lock body, the arc-shaped slide will gradually push up the limit pin, so that the limit pin will be stuck in the card slot again.

3. A motorhome door lock as claimed in claim 2, characterized in that: The limiting pin is cylindrical or spherical.

4. A motorhome door lock as claimed in claim 1, characterized in that: A sleeve is provided at the other end of the rotating shaft, and two interconnected 90-degree interval grooves are provided in the sleeve. A lock core is provided on the outer panel, and the rotating part of the lock core is docked with the sleeve of the rotating shaft, and two flush protrusions are provided on the rotating part of the lock core, and the protrusions are placed in the 90-degree interval grooves.

5. A motorhome door lock as claimed in claim 1, characterized in that: The outer panel or the inner panel is provided with a circuit main board, and the outer panel is equipped with a fingerprint recognition module and a password key module that can start the motor after recognition, and the inner panel is provided with a battery holder that can meet the battery replacement needs, and the fingerprint recognition module, password key module, battery holder and motor are all electrically connected to the circuit main board.

6. A motorhome door lock as claimed in claim 1, characterized in that: The outer panel is provided with a receiving cavity at the outer handle, so that the outer handle is placed in the receiving cavity, and a gap is reserved between the grip of the outer handle and the inner wall of the receiving cavity to allow the hand to be inserted.

7. A motorhome door lock as claimed in claim 1, characterized in that: The motor is a reduction motor with a reduction gear box.

8. A motorhome door lock as claimed in claim 5, characterized in that: The battery installed in the battery holder is a rechargeable battery, and the circuit main board is provided with a charging port, and the insertion port of the charging port is placed outside.

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