CN220319340U - Outside door opening structure of caravan door lock - Google Patents

Abstract

An outside door opening structure of a motor home door lock comprises an outer lock cover, an outer handle mechanism, a retaining mechanism and an unfolding button; the outer handle mechanism comprises a transmission assembly positioned in the outer lock cover and an outer handle connected to the front of the outer lock cover, a storage groove is formed in the outer lock cover, and the outer handle at least has a hidden position state and an unfolding position state relative to the storage groove; the retaining mechanism comprises a retaining column arranged in the storage groove and a retaining clamping plate movably arranged in the outer handle, the retaining clamping plate is rotatably arranged relative to the retaining column, and the retaining clamping plate at least has an interference position state and an avoidance position state relative to the retaining column; the holding clamping plate can be forced to rotate and be switched from the interference position state to the avoidance position state by pressing the unfolding button; the utility model has more concise hiding and containing structure applied to the outside door opening structure, and can not cause the outer handle to be hidden or unfolded smoothly due to blockage.

Description

Outside door opening structure of caravan door lock

Technical Field

The utility model relates to the field of door locks of motor home, in particular to an outside door opening structure of a motor home door lock.

Background

The motor home, also called caravan, english full name Recreational Vehicle, RV for short, can be parked in beach, lake bank, meadow, hillside, forest far away from the city at will, possess the life style of city again simultaneously: making delicious meal, washing hot soaring, sleeping soft and comfortable bed, watching TV, listening to music, playing DVD, etc.

The motor home is similar to a reduced house, and can be divided into a self-propelled type motor home and a pull-type motor home, wherein the two motor home is provided with a living space behind a cab except for the outside of the cab, a bedroom is arranged in the living space, a toilet, a washstand and a bathtub are arranged in the living space, and a living room and an open kitchen are provided, so that the motor home is provided with a motor home door for the living space except for a door of the cab, the existing motor home door is generally designed into a double-layer structure for safety and comfort, two doors can be closed for safety when the motor home is at rest at night, and an outer door can be independently opened for normal daily life, and the inner door which is set as a screen door is closed to block mosquitoes.

The door lock of the motor home is taken as one of the door locks, and is also provided with an outer door opening mechanism and an inner door opening mechanism like a common door lock, wherein the outer door opening mechanism is generally unlocked by a key, and then the door is opened by rotating and pulling an outer handle; unlike the common door lock which is fixed on the door, the door lock for the door lock of the house door can be in a moving state along with the vehicle for a long time, so that if the outer handle of the door lock of the house door is in a stretching state for a long time, the outer handle is easy to collide with the passing vehicle or other objects in the running process of the house vehicle, and serious potential safety hazards are caused.

Therefore, the outer handle of the door opening mechanism of the existing commercial caravan door lock generally has a hiding function, the door handle is in a hiding state in the running process of the automobile, and the outer handle can be unfolded when the automobile stops and needs to be opened and closed.

The Chinese patent with the patent number ZL 202023347901.8 discloses: "many accuse car as a house locks of mechatronic, including outer lock cover, set up on outer lock cover and can be relative outer lock cover movable spring bolt subassembly, still include: a handle assembly having a hidden position state, a pre-deployment position state, and a fully deployment position state; a drive member having a first section adapted to the hidden position state of the handle assembly, a second section adapted to the pre-deployment position state of the handle assembly, a third section adapted to the fully deployment position state of the handle assembly; a mechanical ejection assembly and an electrically controlled ejection assembly for ejecting the handle assembly from the hidden position state to the pre-deployment state; and the spring bolt driving assembly is respectively in transmission connection with the handle assembly and the spring bolt assembly. The utility model provides an electromechanical integrated multi-control motor home lock, which realizes the switching of a handle assembly among a hidden position state, a pre-unfolding position state and a fully unfolding position state through the matching of a driving component and the handle assembly.

However, the scheme described in the patent is included, the hiding and unfolding structures of the outer handle of the existing motor home door lock are very complex, so that the outer handle is blocked frequently and can not smoothly complete hiding or unfolding operation after the service time is long; and repair and maintenance work on the relevant components becomes very difficult due to the complicated structure.

Disclosure of Invention

The utility model provides an outside door opening structure of a door lock of a motor home, which aims to overcome the defects that the outside door opening structure of the door lock of the motor home in the prior art is easy to fail and difficult to maintain due to the fact that the hiding and unfolding structure of an outside handle is too complex.

The technical scheme for solving the technical problems is as follows: the utility model provides a structure is opened door in outside of car as a house lock, including:

an outer lock cover;

the outer handle mechanism comprises a transmission assembly positioned in the outer lock cover and an outer handle connected to the front of the outer lock cover, a storage groove is formed in the outer lock cover, and the outer handle at least has a hidden position state and an unfolding position state relative to the storage groove;

the method also comprises the following steps:

the retaining mechanism comprises a retaining column arranged in the containing groove and a retaining clamping plate movably arranged in the outer handle, the retaining clamping plate is rotatably arranged relative to the retaining column, and the retaining clamping plate at least has an interference position state and an avoidance position state relative to the retaining column;

the unfolding button is arranged on the outer handle in a penetrating way, one end of the unfolding button is exposed out of the surface of the outer handle, the other end of the unfolding button is connected with the retaining clamping plate, and the retaining clamping plate can be forced to rotate and be switched from an interference position state to an avoidance position state by pressing the unfolding button;

when the retaining clip is in the interference position state, the retaining clip is in interference fit with the retaining post, thereby maintaining the outer handle in the hidden position state;

when the holding clamping plate is in the avoidance position state, interference between the holding clamping plate and the holding column is relieved, and the outer handle can be switched to the unfolding position state.

The specific structure of the retaining clamping plate and the matching mode between the retaining clamping plate and the retaining column are further that the retaining clamping plate comprises a clamping part, a clamping groove is formed in one side, close to the retaining clamping plate, of the retaining column, and when the retaining clamping plate is in an interference position state, the edge of the clamping part is clamped and matched in the clamping groove; the holding clamping plate is pushed to rotate by pressing the unfolding button, so that the clamping part can be separated from the clamping groove.

The structure of the retaining column is further provided with a guide inclined plane, and the guide inclined plane is downwards inclined from the top of the retaining column to one side provided with the clamping groove; when the outer handle is pushed to be hidden into the storage groove from the unfolded position, the holding clamping plate is in abutting connection with the top of the holding column, and the clamping part of the holding clamping plate slides along the guide inclined plane under the action of external force, so that the holding clamping plate rotates to be staggered with the holding column, and can be clamped into the clamping groove after the outer handle is released.

The structure of the holding clamping plate is further that the clamping part is arranged at one end of the holding clamping plate, the other end of the holding clamping plate is provided with a connecting part for the unfolding button to form fit, and a hinge hole for the outer handle to hinge is further formed in the middle position of the holding clamping plate between the clamping part and the connecting part.

The specific structure of expansion button is further, expansion button is including being used for keeping the cardboard to form complex effect portion, action inclined plane has been seted up to one side of effect portion, action inclined plane and keep the cardboard to form butt cooperation, when expansion button drove and keep the cardboard to rotate, keep the cardboard on with the expansion button form the part of being connected and can take place to slide along action inclined plane.

The unfolding button drives the retaining clamp plate to rotate in a further mode, and when the unfolding button is not acted by external force, the connecting part of the retaining clamp plate is abutted to the lower side of the action part of the unfolding button; when the unfolding button is pressed by external force, the unfolding button moves towards the direction close to the holding clamping plate, the acting part starts to push the connecting part to move, the connecting part slides along the guiding of the acting inclined plane due to the acting inclined plane arranged on the acting part, and the clamping part on the other end can relatively deflect when the connecting part moves due to the fact that the middle position of the holding clamping plate is hinged with the outer handle.

The state maintaining mode of the holding clamping plate is further characterized in that a holding tension spring is further arranged in the outer handle, and the holding tension spring is connected between the holding clamping plate and the outer handle and acts on the holding clamping plate to enable the holding clamping plate to be maintained in an interference position state when the holding clamping plate is not acted by external force.

The mounting mode of holding the cardboard in the outer handle is further, the cardboard groove has been seted up to outer handle rear side, the holding cardboard just set up in the cardboard inslot, cardboard inslot still protruding be equipped with be used for with holding the articulated post mutually of cardboard, and outer handle is located cardboard groove rear still can dismantle and be connected with the back lid, the back is covered and is still offered and be used for supplying the holding post to stretch into the last through-hole in the outer handle and be used for dodging the lower through-hole of expansion button.

The automatic unfolding mode of the outer handle is further that an unfolding spring is further arranged in the outer lock cover, the unfolding spring acts between the outer handle and the outer lock cover, and the outer handle always has a movement trend away from the storage groove.

The transmission connection mode between the outer handle and the transmission assembly is further characterized in that the transmission assembly comprises a transmission shaft sleeve, a connecting shaft used for forming shaft connection with the transmission shaft sleeve is arranged on the outer handle in a protruding mode, a connecting pin is further penetrated through the connecting shaft, connecting grooves capable of forming plug connection with the connecting pin are formed in two sides of the transmission shaft sleeve, the unfolding spring clamp is arranged between the connecting shaft and the transmission shaft sleeve, and the connecting shaft is movably arranged relative to the transmission shaft sleeve; and when the connecting shaft moves, the connecting pin can slide along the length direction of the connecting groove.

The mechanical unlocking structure in the outer lock cover is further provided with an outer mechanical unlocking mechanism connected with a lock cylinder mechanism of a main lock of the motor home door lock, and the outer mechanical unlocking mechanism comprises a lock hole exposed out of the front side of the outer lock cover.

The structure of electric drive release mechanism linkage in outer lock cover and the car as a house lock is further, the mounting groove that is arranged in installing inductive control panel has still been seted up to outer lock cover front side, and the cover is still dismantled to be equipped with wireless apron in the place ahead of the mounting groove to the outer lock cover, and the inductive control panel of installing in the mounting groove can form communication control connection with electric drive release mechanism in the car as a house lock.

The unfolding and hiding modes of the outer handle in the utility model are as follows:

when the vehicle is stopped and the door of the house needs to be opened, the lock core mechanism of the door lock of the house can be unlocked by inserting a key into the lock hole to rotate the outer mechanical unlocking mechanism; or in a wireless induction mode such as card swiping and the like, the induction control board arranged in the mounting groove is used for controlling the electric drive unlocking mechanism in the caravan door lock to unlock the lock core mechanism of the caravan door lock; after the lock core mechanism is unlocked, an unfolding button on the outer handle can be pressed to move inwards and approach the holding clamping plate, an action part on the unfolding button also pushes a connecting part of the holding clamping plate to move, so that a clamping part on the other end of the holding clamping plate is driven to deflect relative to the holding column, the edge of the clamping part is further separated from the clamping groove, at the moment, the interference between the holding clamping plate and the holding column is relieved, the outer handle can be ejected from the storage groove under the action of an unfolding spring, the state of the outer handle is switched to the state of the unfolding position from the state of the hiding position, and at the moment, the door opening action of the door lock of the caravan can be realized by holding and rotating the unfolded outer handle;

when the house door is closed and the outer handle is required to be hidden, the outer handle can be moved towards the storage groove by pressing the outer handle towards the storage groove, the outer handle overcomes the acting force of the unfolding spring, in the process of hiding the outer handle into the storage groove, the retaining column can extend into the outer handle, the clamping part on the retaining clamping plate in the outer handle is in abutting connection with the top of the retaining column, the clamping part swings towards one side of the retaining column under the guidance of the guiding inclined plane of the top of the retaining column, and is clamped into the clamping groove after crossing the top of the retaining column, at the moment, interference fit is formed between the retaining clamping plate and the retaining column, and the outer handle can be kept in a hidden position state.

The utility model has the beneficial effects that:

1. the outer handle is kept in the hidden position state by the mode that the retaining clamping plate and the retaining column are interfered with each other, the outer handle is switched from the hidden position state to the unfolding position state by the mode that the unfolding button is used for promoting the retaining clamping plate to rotate and releasing interference between the retaining clamping plate and the retaining column, compared with the existing hidden and containing structure of the outer handle of a commercial house door, the hidden and containing structure applied to the outside door opening structure is simpler, the hidden and containing process of the outer handle is more convenient and smoother, and the phenomenon that the outer handle cannot be hidden or unfolded smoothly due to blocking is avoided;

2. the detachable rear cover is arranged on the outer handle, and the retaining clamping plate in the outer handle can be adjusted or replaced by removing the rear cover, so that the outer handle in the outer door opening structure is hidden and the maintenance and adjustment of the storage structure are more convenient;

3. the outer handle is connected with the transmission assembly in a plug-in fit mode through the connecting column and the transmission shaft sleeve, and the transmission is realized by virtue of the connecting pin penetrating through the connecting column and the transmission shaft sleeve, and the connecting column can move relative to the transmission shaft sleeve, and the transmission pin can slide along the connecting groove on the transmission shaft sleeve, so that the transmission connection between the outer handle and the transmission assembly is ensured, and the outer handle can move relative to the transmission assembly under the action of the unfolding spring to complete unfolding;

4. the outside door opening structure is provided with an outer mechanical unlocking mechanism connected with the inner lock core of the main lock of the caravan door lock, and is also provided with a mounting groove for accommodating an induction control board in signal connection with the inner electric control unlocking mechanism of the main lock of the caravan door lock, so that the outside door opening structure can be suitable for the caravan door lock unlocked in a multi-mode.

Drawings

Fig. 1 is a schematic view of the structure of the present utility model with the outside handle in a hidden position.

Fig. 2 is an exploded view of the present utility model.

Fig. 3 is a schematic view of the structure of the outer handle in the unfolded position according to the present utility model.

Fig. 4 is a cross-sectional view of the present utility model with the outside handle in the hidden position.

Fig. 5 is a cross-sectional view of the present utility model with the outside handle in the deployed position.

FIG. 6 is a schematic view of the structure of the holding card of the present utility model.

Fig. 7 is a schematic view of the structure of the expansion button in the present utility model.

Fig. 8 is a schematic view of the structure of the rear side of the outer handle in the present utility model.

Fig. 9 is a schematic view showing a state in which the holding card is in an interference position with respect to the holding column in the present utility model.

Fig. 10 is a schematic view showing a state in which the holding card is in the retracted position with respect to the holding column in the present utility model.

Reference numerals in the drawings: 1. an outer lock cover; 2. a transmission assembly; 3. an outer handle; 4. a storage groove; 5. a retaining post; 6. a holding clamping plate; 7. a deployment button; 8. a clamping part; 9. a clamping groove; 10. a guide slope; 11. a connection part; 12. a hinge hole; 13. an action part; 14. an action inclined plane; 15. a tension spring is held; 16. a card plate groove; 17. a hinge post; 18. a rear cover; 19. an upper through hole; 20. a lower through hole; 21. expanding a spring; 22. a driving sleeve; 23. a connecting shaft; 24. a connecting pin; 25. a connecting groove; 26. an external mechanical unlocking mechanism; 27. a lock hole; 28. a mounting groove; 29. a wireless cover plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that, although the terms upper, middle, lower, top, end, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another for ease of understanding and are not used to define any directional or sequential limitation.

Examples

An outside door opening structure of a motor home door lock shown in combination with fig. 1 to 3 comprises an outer lock cover 1, an outer handle 3 mechanism, a retaining mechanism and an unfolding button 7; the outer handle 3 mechanism comprises a transmission assembly 2 positioned in the outer lock cover 1 and an outer handle 3 connected to the front of the outer lock cover 1, a storage groove 4 is formed in the outer lock cover 1, and the outer handle 3 at least has a hidden position state and an unfolding position state relative to the storage groove 4; the holding mechanism comprises a holding column 5 arranged in the accommodating groove 4 and a holding clamping plate 6 movably arranged in the outer handle 3, the holding clamping plate 6 is rotatably arranged relative to the holding column 5, and the holding clamping plate 6 at least has an interference position state and an avoidance position state relative to the holding column 5; the unfolding button 7 is arranged on the outer handle 3 in a penetrating way, one end of the unfolding button is exposed out of the surface of the outer handle 3, the other end of the unfolding button is connected with the holding clamping plate 6, and the holding clamping plate 6 can be forced to rotate and can be switched from the interference position state to the avoidance position state by pressing the unfolding button 7.

As shown in connection with fig. 9, in this embodiment, when the holding card 6 is in the interference position state, the holding card 6 is in interference fit with the holding column 5, thereby holding the outside handle 3 in the hidden position state;

as shown in fig. 10, in the present embodiment, when the holding clip 6 is in the retracted position, the interference between the holding clip 6 and the holding post 5 is released, and the outer handle 3 can be switched to the extended position.

In combination with the structure of the holding card 6 shown in fig. 6 and the fitting state between the holding card 6 and the holding column 5 shown in fig. 9 and 10, in this embodiment, the holding card 6 includes a clamping portion 8, a clamping groove 9 is formed on a side of the holding column 5, which is close to the holding card 6, and when the holding card 6 is in an interference position state, an edge of the clamping portion 8 is clamped and fitted in the clamping groove 9; the holding clamping plate 6 is pushed to rotate by pressing the unfolding button 7, so that the clamping part 8 can be separated from the clamping groove 9; the clamping part 8 is arranged at one end of the holding clamping plate 6, the other end of the holding clamping plate 6 is provided with a connecting part 11 for the unfolding button 7 to form fit, and a hinge hole 12 for the hinge of the outer handle 3 is further formed in the middle position of the holding clamping plate 6 between the clamping part 8 and the connecting part 11.

In this embodiment, the retaining post 5 is further provided with a guiding inclined plane 10, and the guiding inclined plane 10 is inclined downward from the top of the retaining post 5 toward the side provided with the clamping groove 9; when the outer handle 3 is pushed to be hidden into the storage groove 4 from the unfolded position, the holding clamping plate 6 is in abutting connection with the top of the holding column 5, and the clamping part 8 of the holding clamping plate 6 slides along the guiding inclined plane 10 under the action of external force, so that the holding clamping plate 6 rotates to be staggered with the holding column 5, and the holding clamping plate 6 can be clamped into the clamping groove 9 after the outer handle 3 is released.

In this embodiment, the unfolding button 7 includes an action portion 13 for forming a fit with the holding board 6, an action inclined plane 14 is formed on one side of the action portion 13, the action inclined plane 14 forms an abutting fit with the holding board 6, and when the unfolding button 7 drives the holding board 6 to rotate, a portion of the holding board 6 connected with the unfolding button 7 can slide along the action inclined plane 14.

As shown in the way of combining the interaction among the holding clamping plate 6, the holding column 5 and the unfolding button 7 in fig. 8 to 10, when the unfolding button 7 is not acted by external force, the connecting part 11 of the holding clamping plate 6 is abutted against the lower side of the acting part 13 of the unfolding button 7 in the embodiment; when the unfolding button 7 receives an external force pressing, the unfolding button 7 moves towards the direction approaching to the holding clamping plate 6, the acting part 13 starts to push the connecting part 11 to move, the connecting part 11 slides along the guiding of the acting inclined plane 14 due to the acting inclined plane 14 arranged on the acting part 13, and the clamping part 8 on the other end relatively deflects when the connecting part 11 moves due to the fact that the middle position of the holding clamping plate 6 is hinged with the outer handle 3.

As shown in connection with the structure of the rear side of the outer handle 3 in fig. 8, in this embodiment, a retaining tension spring 15 is further provided in the outer handle 3, and the retaining tension spring 15 is connected between the retaining clip 6 and the outer handle 3 and acts on the retaining clip 6 to maintain the retaining clip in an interference position when not acted on by an external force.

Referring to fig. 8, fig. 4, and fig. 5, in this embodiment, the rear side of the outer handle 3 is provided with a clip board slot 16, the holding clip board 6 is disposed in the clip board slot 16, a hinge post 17 for hinging with the holding clip board 6 is further protruding in the clip board slot 16, a rear cover 18 is further detachably connected to the outer handle 3 at the rear of the clip board slot 16, and an upper through hole 19 for the holding post 5 to extend into the outer handle 3 and a lower through hole 20 for avoiding the unfolding button 7 are further formed in the rear cover 18.

As shown in the sectional views of fig. 4 and 5, in this embodiment, an expanding spring 21 is further disposed in the outer lock cover 1, and the expanding spring 21 acts between the outer handle 3 and the outer lock cover 1, and makes the outer handle 3 always have a movement trend away from the receiving slot 4; the transmission assembly 2 comprises a transmission shaft sleeve 22, a connecting shaft 23 for forming shaft connection with the transmission shaft sleeve 22 is convexly arranged on the outer handle 3, a connecting pin 24 is further penetrated and arranged on the connecting shaft 23, connecting grooves 25 which can form plug-in fit with the connecting pin 24 are formed on two sides of the transmission shaft sleeve 22, the unfolding spring 21 is clamped between the connecting shaft 23 and the transmission shaft sleeve 22, and the connecting shaft 23 is movably arranged relative to the transmission shaft sleeve 22; when the connecting shaft 23 moves, the connecting pin 24 can slide along the length direction of the connecting groove 25.

As shown in fig. 1 to 3, in this embodiment, an outer mechanical unlocking mechanism 26 connected with a lock core mechanism of a main lock of a car door lock is further disposed in the outer lock housing 1, and the outer mechanical unlocking mechanism 26 includes a lock hole 27 exposed at the front side of the outer lock housing 1; the front side of the outer lock cover 1 is also provided with a mounting groove 28 for mounting an induction control board, a detachable cover arranged in front of the mounting groove 28 on the outer lock cover 1 is also provided with a wireless cover plate 29, and the induction control board mounted in the mounting groove 28 can form communication control connection with an electric drive unlocking mechanism in a door lock of a motor home.

The outer handle 3 in this embodiment is unfolded and hidden:

when the vehicle is stopped and the door of the house needs to be opened, the lock core mechanism of the door lock of the house can be unlocked by inserting a key into the lock hole 27 to rotate the outer mechanical unlocking mechanism 26; or in a wireless induction mode such as card swiping and the like, the induction control board arranged in the mounting groove 28 is used for controlling the electric drive unlocking mechanism in the caravan door lock to unlock the lock cylinder mechanism of the caravan door lock; after the lock core mechanism is unlocked, the unfolding button 7 on the outer handle 3 can be pressed to move towards the outer handle 3 and approach the holding clamping plate 6, the action part 13 on the unfolding button 7 also pushes the connecting part 11 of the holding clamping plate 6 to move, so that the clamping part 8 on the other end of the holding clamping plate 6 is driven to deflect relative to the holding column 5, the edge of the clamping part 8 is further separated from the clamping groove 9, at the moment, the interference between the holding clamping plate 6 and the holding column 5 is released, the outer handle 3 can be ejected from the storage groove 4 under the action of the unfolding spring 21, the state is switched from the hiding position state to the unfolding position state, and at the moment, the door opening action of the caravan door lock can be realized by holding and rotating the unfolded outer handle 3;

when the door of the house is closed and the outer handle 3 needs to be hidden, the outer handle 3 can be moved towards the storage groove 4 by pressing the outer handle 3 towards the storage groove 4, against the action of the unfolding spring 21, and when the outer handle 3 is hidden into the storage groove 4, the retaining post 5 stretches into the outer handle 3, the clamping part 8 on the retaining clamping plate 6 in the outer handle 3 is abutted with the top of the retaining post 5, the clamping part 8 swings towards one side of the retaining post 5 under the guidance of the guiding inclined surface 10 at the top of the retaining post 5, and is clamped into the clamping groove 9 after crossing the top of the retaining post 5, at the moment, the interference fit is formed between the retaining clamping plate 6 and the retaining post 5, and the outer handle 3 can be kept in a hidden position state.

The advantage of this embodiment lies in, is arranged in the storage and hiding structure of outer handle in this outside unblock structure succinct more for the storage and hiding process of outer handle is simpler and more convenient and can not appear the card and hinder the condition, and is also more convenient to outer handle storage and hiding structure's regulation and maintenance moreover.

The above-described embodiments are provided for illustration only and not for limitation of the present utility model, and modifications may be made to the embodiments without creative contribution by those skilled in the art after reading the present specification, as long as they are protected by patent laws within the scope of claims of the present utility model.

Claims (10)

1. The utility model provides a structure is opened door in outside of car as a house lock, including:

an outer lock cover (1);

the outer handle (3) mechanism comprises a transmission assembly (2) positioned in the outer lock cover (1) and an outer handle (3) connected to the front of the outer lock cover (1), wherein the outer lock cover (1) is provided with a storage groove (4), and the outer handle (3) at least has a hidden position state and an unfolding position state relative to the storage groove (4);

it is characterized in that the method also comprises the following steps:

the retaining mechanism comprises a retaining column (5) arranged in the accommodating groove (4) and a retaining clamping plate (6) movably arranged in the outer handle (3), the retaining clamping plate (6) is rotatably arranged relative to the retaining column (5), and the retaining clamping plate (6) at least has an interference position state and an avoidance position state relative to the retaining column (5);

a spreading button (7) which is arranged on the outer handle (3) in a penetrating way, one end of the spreading button is exposed out of the surface of the outer handle (3), the other end of the spreading button is connected with the holding clamping plate (6), and the holding clamping plate (6) can be forced to rotate and can be switched from an interference position state to an avoidance position state by pressing the spreading button (7);

when the retaining clamping plate (6) is in an interference position state, the retaining clamping plate (6) is in interference fit with the retaining column (5), so that the outer handle (3) is kept in a hidden position state;

when the holding clamping plate (6) is in the avoidance position state, interference between the holding clamping plate (6) and the holding column (5) is relieved, and the outer handle (3) can be switched to the unfolding position state.

2. The outside door opening structure of an caravan door lock according to claim 1, wherein: the retaining clamping plate (6) comprises a clamping part (8), a clamping groove (9) is formed in one side, close to the retaining clamping plate (6), of the retaining column (5), and when the retaining clamping plate (6) is in an interference position state, the edge of the clamping part (8) is clamped and matched in the clamping groove (9); the holding clip (6) is pushed to rotate by pressing the unfolding button (7), so that the clamping part (8) can be separated from the clamping groove (9).

3. The outside door opening structure of an caravan door lock according to claim 2, wherein: the clamping part (8) is arranged at one end of the holding clamping plate (6), a connecting part (11) for forming matching with the unfolding button (7) is arranged at the other end of the holding clamping plate (6), and a hinge hole (12) for hinging the outer handle (3) is formed in the middle position of the holding clamping plate (6) between the clamping part (8) and the connecting part (11).

4. The outside door opening structure of an caravan door lock according to claim 1, wherein: the unfolding button (7) comprises an action part (13) for forming a fit with the holding clamping plate (6), an action inclined plane (14) is formed on one side of the action part (13), the action inclined plane (14) is in butt fit with the holding clamping plate (6), and when the unfolding button (7) drives the holding clamping plate (6) to rotate, a part connected with the unfolding button (7) on the holding clamping plate (6) can slide along the action inclined plane (14).

5. The outside door opening structure of an caravan door lock according to claim 1, wherein: the outer handle (3) is internally provided with a retaining tension spring (15), and the retaining tension spring (15) is connected between the retaining clamping plate (6) and the outer handle (3) and acts on the retaining clamping plate (6) to enable the retaining clamping plate (6) to be maintained in an interference position state when the retaining clamping plate is not acted by external force.

6. The outside door opening structure of an caravan door lock according to claim 1, wherein: the outer handle (3) rear side has offered cardboard groove (16), keep cardboard (6) just set up in cardboard groove (16), cardboard groove (16) are interior still protruding be equipped with be used for with keep cardboard (6) looks articulated post (17), and lie in on outer handle (3) cardboard groove (16) rear still can dismantle be connected with back lid (18), still set up on back lid (18) and be used for supplying keeping post (5) to stretch into last through-hole (19) in outer handle (3) and be used for dodging lower through-hole (20) of expansion button (7).

7. The outside door opening structure of an caravan door lock according to claim 1, wherein: an unfolding spring (21) is further arranged in the outer lock cover (1), the unfolding spring (21) acts between the outer handle (3) and the outer lock cover (1), and the outer handle (3) always has a movement trend far away from the storage groove (4).

8. The outside door opening structure of an caravan door lock according to claim 7, wherein: the transmission assembly (2) comprises a transmission shaft sleeve (22), a connecting shaft (23) for forming shaft connection with the transmission shaft sleeve (22) is convexly arranged on the outer handle (3), a connecting pin (24) is further penetrated and arranged on the connecting shaft (23), connecting grooves (25) which can be in plug-in fit with the connecting pin (24) are formed in two sides of the transmission shaft sleeve (22), the unfolding spring (21) is clamped between the connecting shaft (23) and the transmission shaft sleeve (22), and the connecting shaft (23) is movably arranged relative to the transmission shaft sleeve (22); when the connecting shaft (23) moves, the connecting pin (24) can slide along the length direction of the connecting groove (25).

9. The outside door opening structure of an caravan door lock according to claim 1, wherein: an outer mechanical unlocking mechanism (26) connected with a lock cylinder mechanism of a main lock of the motor home door lock is further arranged in the outer lock cover (1), and the outer mechanical unlocking mechanism (26) comprises a lock hole (27) exposed out of the front side of the outer lock cover (1).

10. The outside door opening structure of an caravan door lock according to claim 1, wherein: the front side of the outer lock cover (1) is also provided with a mounting groove (28) for mounting the induction control board, and the detachable cover arranged in front of the mounting groove (28) on the outer lock cover (1) is also provided with a wireless cover plate (29).