Disclosure of Invention
The invention aims to provide a wall-mounted charging structure for a new energy automobile, which can be used for wall-mounted fixation and can also be used for connection of foundation columns, the whole connection process is convenient and quick, and the state switching is easy.
The embodiment of the invention is realized by the following steps: a wall-mounted charging structure for a new energy automobile comprises a charger body and a wall-mounted box arranged on one side of the charger body, wherein a wall-mounted plate with a wall-mounted hole is arranged on the wall-mounted box, a quick plugging mechanism for connecting jacks on an external platform is arranged on the lower side of the wall-mounted box, the quick plugging mechanism comprises two plugging plates and locking assemblies symmetrically arranged between the two plugging plates, the two plugging plates are fixedly connected with the wall-mounted box, the two plugging plates are parallel to each other, a horizontal chute is processed on one side, close to each other, of each plugging plate, the locking assemblies comprise locking rods, connecting seats, clamping pins and trigger rods, the locking rods are slidably matched in the chutes of the plugging plates on the two sides, a limiting plate is fixed on each locking rod, the connecting seats are fixed between the plugging plates on the two sides above the locking rods, one end of each clamping pin slidably penetrates through the connecting seats and extends out of the plugging plates, and, one end of the trigger rod vertically extends into the wall-mounted box, the other end of the trigger rod inclines towards the midpoint of any sliding groove, the inclined end of the trigger rod slidably penetrates through the lock rod, a driving assembly capable of driving the trigger rod to vertically slide is arranged in the wall-mounted box, the driving assembly is controlled to drive the trigger rod to slide downwards, and the lock rod can slide towards one side far away from the midpoint of the sliding groove.
Furthermore, the maximum sliding position of one end of the lock rod, which is far away from the middle point of the sliding groove, is positioned on one side of the bayonet lock, which is far away from the plugboard.
Furthermore, one end of the bayonet lock, which is far away from the plugboard, is in a tapered shape with a reduced opening.
Further, the wall link plate includes backplate and two panels, and two panels are all through even board and backplate fixed connection, and two panels are fixed respectively in the left and right sides of wall-hung box, and the hanging hole has two sets ofly, and every group wall hanging hole all includes hole and hanging back hole before the hanging that is parallel to each other and the shape is the same, and the line direction between hole and the hanging back hole of the same group before the hanging arranges along the fore-and-aft direction of wall-hung box, and the hole setting is on the panel before the hanging, and the hole setting is on the backplate behind the hanging of the same group.
Furthermore, the lower sides of the two ends of the back plate are respectively fixed with a vertical rod, and one side of each vertical rod, which is close to the charger body, is fixed with a winding rod.
Further, all processing has the trompil on the lateral wall about the hanging case, and every trompil department all is provided with the slidable spacer pin, and every spacer pin one end all can stretch out outside the trompil that corresponds and lie in the line direction between the hole behind the hanging of corresponding side and the hanging, and the end that stretches out of every spacer pin all processes the spacer hole.
Further, the driving component comprises a slide rail, a fixed sleeve and a slide bar, the wall-mounted box comprises a support plate and connecting rod groups respectively used for connecting two limiting pins, the fixed sleeve is fixed in the wall-mounted box, a sliding rod can slide and vertically penetrates through an inner hole of the fixed sleeve, a sliding rail is horizontally fixed at the upper end of the sliding rod, the two limiting pins are respectively in sliding fit with two ends of the sliding rail, the support plate is fixed at the lower end of the sliding rod, the upper ends of two trigger rods are fixedly connected with the support plate, the two connecting rod groups are symmetrically arranged on two sides of the fixed sleeve, each connecting rod group comprises a push-pull rod, an L-shaped rod, a hinged support and a connector, the hinged support is fixed in the wall-mounted box between the support plate and the sliding rail, the turning part of the L-shaped rod is hinged with the hinged support, the push-pull rod is hinged between one end of the L-shaped rod and the limiting pins.
Furthermore, the connecting body comprises a rod body, a disk body and a shaft body, the shaft body is rotatably arranged in the wall hanging box, the disk body is fixedly sleeved on the shaft body, a limiting track is processed on the disk body, the limiting track comprises a first connecting section, a second connecting section and a third connecting section which are connected end to end, the first connecting section is in an arc shape, the second connecting section and the third connecting section are symmetrically distributed about the circle center of the first connecting section respectively, the second connecting section and the third connecting section are in a straight line shape, the connecting line between the connecting point between the second connecting section and the third connecting section and the circle center of the first connecting section is smaller than the radius of the first connecting section, and the power mechanism is used for driving the two shaft bodies to synchronously and reversely rotate; one end of the rod body is fixedly connected with the slide rail, the other end of the rod body is in rolling fit with the limiting rail through the idler wheel, and the end part of the L-shaped rod is in rolling fit with the limiting rail through the idler wheel.
Furthermore, power unit includes the lock case and sets up first gear and the second gear in the lock case, and the lock case is fixed in the wall and is hung the case and keep away from the one side of machine that charges body, and first gear and second gear suit respectively are on two axis bodies, and first gear and second gear intermeshing, set up drive power on the axis body of one in first gear and the second gear.
Furthermore, a locking mechanism is arranged on the shaft body of one of the first gear and the second gear.
The embodiment of the invention has the beneficial effects that:
the charging structure provided by the embodiment of the invention is characterized in that the wall hanging plate with the wall hanging hole is arranged on the wall hanging box and can be used for hanging the wall surface, the quick inserting mechanism is arranged at the bottom of the wall hanging box and can be quickly inserted into the insertion hole on the foundation upright post, the quick inserting mechanism is very convenient and quick, the locking state connected with the upright post can be easily switched by only performing displacement operation on the trigger rod in the vertical direction, compared with the traditional wall-hanging charging pile, the quick connection function with the foundation upright post is added, the connection process is simple and quick, the charging structure is very suitable for being installed by transferring the charging box body structure from one place to another place, and the difficulty that the traditional charging box body structure is difficult to replace or the installation state is switched is overcome.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "parallel," "perpendicular," and the like do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel relative to "perpendicular," and does not mean that the structures are necessarily perfectly parallel, but may be slightly tilted.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
Please refer to fig. 1, the wall-mounted charging structure for the new energy vehicle provided by this embodiment includes a charger body 1 and a wall-mounted box 2 disposed at one side of the charger body 1, preferably, the charger body 1 adopts a conventional rectangular box-shaped structure, a box door is hinged at a front side of the charger body, the wall-mounted box 2 is detachably mounted at a back side of the charger body 1 through a plurality of bolts, and this embodiment mainly improves the wall-mounted box 2 to overcome a problem that a current wall-mounted charging pile is not easily converted into a column-type charging pile. Specifically, the wall hanging box 2 is provided with a wall hanging plate 4 with wall hanging holes 46, referring to fig. 2 and fig. 3, the wall hanging plate 4 includes a strip-shaped back plate 41 and two face plates 43, the two face plates 43 are fixedly welded to the back plate 41 through a connecting plate 42, preferably, the face plates 43 and the back plate 41 are parallel to each other, the cross-sectional shape of the whole wall hanging plate 4 is U-shaped, and a rectangular space is enclosed among the face plates 43, the connecting plate 42 and the back plate 41. The two panels 43 are respectively fixed on the left and right sides of the wall-mounted box 2, that is, one end of the panel 43 far away from the connecting plate 42 is fixedly welded or screwed with the left or right side wall corresponding to the wall-mounted box 2.
The wall hanging plate 4 is mainly used for being connected with a wall surface, particularly achieves the purpose of connection through wall nails, is reliable in connection, convenient to operate and low in cost. Wall hanging hole 46 has two sets ofly, be located two panels 43 respectively and correspond 41 positions of backplate and locate, specifically, hole and hanging rear hole before every group wall hanging hole 46 all includes the hanging that is parallel to each other and the shape is the same, and the line direction between hole and the hanging rear hole of the same group arranges along hanging case 2 fore-and-aft direction before the hanging, show that the hole is by the preceding fore-and-aft direction translation gained of hanging case 2 in hole before the hanging promptly, be convenient for like this the wall nail can the level pass hole and hanging rear hole before the hanging that corresponds to reach and fix panel 43 and backplate 41 the mesh on the wall. Of course, the hole sets up on panel 43 before the hanging, and the hole sets up on backplate 41 behind the hanging of the same group, and the wall nail passes hole and hanging back hole before the hanging in proper order can realize being fixed in the purpose on the wall with whole wall-hanging board 4. In addition, 41 both ends downside of backplate is fixed with montant 44 respectively, and every montant 44 all is fixed with wire winding rod 45 near one side of machine body 1 that charges, and wire winding rod mainly used charges coiling of rifle cable, prevents that the cable from coiling in a jumble and the phenomenon of unable orderly accomodating from appearing.
The wall hanging function of the wall hanging box 2 is realized, and to enable the wall hanging box 2 to have the function of being quickly connected with the foundation upright post, please refer to fig. 6 and 7, a quick plugging mechanism 3 for connecting with a jack on an external platform is arranged on the lower side of the wall hanging box 2, the external platform is mainly the foundation upright post, and the jack is processed on the top of the foundation upright post and can be locked with the quick plugging mechanism 3. Specifically, quick grafting mechanism 3 includes two plugboards 301 and the locking subassembly of symmetry setting between two plugboards 301, and the last lateral wall of two plugboards 301 all with the fixed welding of the bottom side wall of hanging case 2 or spiro union, and two plugboards 301 are parallel to each other, form a longitudinal section and be the space of rectangle between two plugboards 301, two sets of locking subassemblies are about the vertical central line symmetric distribution of this rectangle. The side of each plugging plate 301 close to each other is processed with a horizontal sliding slot 302, that is, the length direction of the sliding slot 302 is arranged along the horizontal center line direction of the plugging plate 301.
The single group of locking components is taken as an example for explanation, the locking components include a locking rod 303, a connecting seat 305, a bayonet 306 and a trigger rod 308, the locking rod 303 is cylindrical, and the locking rod 303 is slidably fitted in the sliding grooves 302 of the two side plugboard 301, that is, two sides of the locking rod 303 are respectively slidably fitted with the sliding grooves 302 of the two sides. A vertical limiting plate 304 is fixed on the upper surface of the lock rod 303, the connecting seat 305 is fixed between the two side plug boards 301 above the lock rod 303, the connecting seat 305 is preferably located at the edge of the plug board 301 far away from the center of the plug board 301, and one end of the bayonet pin 306 slidably penetrates through the connecting seat 305 and extends out of the plug board 301, namely, one end of the bayonet pin 306 extends out of the space with the rectangular cross section. A spring 307 is arranged between the other end of the detent 306 and the limit plate 304, so that the detent 306 has a reset function. Bulges 309 are formed on the inner edges of two sides of the top inserting interface of the foundation upright post, the bulges 309 can interact with the clamping pin 306, after the clamping pin 306 is pressed for a short time, the bulges 309 directly pass through, and then the clamping pin 306 extends out after resetting, and an initial locking state is formed between the bulges 309. Of course, in order to increase the smoothness of the interaction between the protrusion 309 and the end of the bayonet 306, the end of the bayonet 306 away from the socket 301 is tapered, and the end of the protrusion 309 close to the bayonet 306 is also tapered, so as to increase the smoothness of the interaction between the two.
Considering that only the stability of the protrusion 309 and the bayonet 306 locking with each other is not high, the locking stability between the quick plugging mechanism 3 and the foundation column can be ensured only by driving the locking rod 303 and the locking hole 310 on the inner wall of the plugging port to lock with each other. Specifically, one end of the trigger rod 308 vertically extends into the wall-mounted box 2, the other end of the trigger rod is inclined towards the midpoint of any sliding groove 302, the inclined end of the trigger rod 308 slidably penetrates through the lock rod 303, a driving assembly capable of driving the trigger rod 308 to vertically slide is arranged in the wall-mounted box 2, through the structural design, the driving assembly is controlled to drive the trigger rod 308 to vertically slide downwards, the lock rod 303 can slide towards one side far away from the midpoint of the sliding groove 302, and therefore the locking rod can be mutually locked and plugged with the lock hole 310 in the inner wall of the plugging port. When the protrusion 309 and the locking pin 306 are in the initial locking state, the locking bar 303 and the locking hole 310 can be controlled to be locked with each other, so as to ensure the stable connection function between the whole quick plugging mechanism 3 and the foundation column. Certainly, in order to facilitate processing of the foundation pillar top socket, the foundation pillar top socket can stably and accurately enter a primary locking state first and then enter a final locking state, and the maximum sliding position of one end of the lock rod 303, which is far away from the midpoint of the sliding groove 302, is located on one side of the bayonet pin 306, which is far away from the socket plate 301, that is, the end of the lock rod 303 extends out and then is farther than the end of the bayonet pin 306, so that the lock rod 303 and the lock hole 310 can be locked with each other smoothly. Through setting up quick grafting mechanism 3, only need simple control drive assembly just can realize and the ground stand between the quick connect function, have stronger scene adaptability for traditional wall-hanging electric pile that fills.
Considering that the wall-mounted box 2 is not always well adapted to the wall-mounted hole 46 when being used for wall-mounting, the wall-mounted hole 46 is designed to be a strip-shaped hole, and a round hole with an expanded diameter is formed at one end of the strip-shaped hole, so that the nail cap of the wall nail can conveniently pass through the round hole. After being designed into the strip-shaped hole, the hanging hole 46 can be higher in fault tolerance rate with the wall nail mounting position, but the design needs to solve the connection stability between the wall hanging plate 4 and the wall nail, and the whole wall hanging box 2 is prevented from generating great shaking. Specifically, the wall hanging case 2 all processes on the lateral wall about and has trompil, but every trompil department all is provided with horizontal slip's spacer pin 2064, but every spacer pin 2064 one end all can stretch out outside the trompil that corresponds and be located the line direction between the preceding hole of the wall hanging of corresponding side and the hole behind the wall hanging, show promptly that spacer pin 2064 wears out the one end of trompil just with correspond left side or right side before the hole be located the coplanar between hole and the wall hanging back hole. The end that stretches out of every spacer pin 2064 all processes the spacing hole 2065, and spacing hole 2065 link up the trilateral lateral wall that is close to spacer pin 2064 tip, can with the mutual joint of the nail body of wall nail to after the spacer pin 2064 through both sides and the mutual chucking of wall nail of both sides, realize the function of stable connection between wall link plate 4 and the wall nail.
In order to meet the design concept of simple and convenient operation of the wall-mounted charging structure, two limit pins 2064 and two trigger rods 308 can be driven to act simultaneously through one component or one primary power, so that the switching of the states of the wall-mounted box 2 can be realized under one operation, namely, the limit pins 2064 slide out to be in a wall-mounted locking state, and the trigger rods 308 move down to be in a foundation upright column locking state. The purpose is achieved by a driving assembly arranged in a box body 201, specifically, the driving assembly comprises a slide rail 202, a fixed sleeve 204, a slide rod 203, a support plate 205 and a connecting rod set 206 respectively used for connecting two limit pins 2064, the fixed sleeve 204 is vertically fixed in a wall hanging box 2, preferably, the fixed sleeve 204 is located at the central line of the inner cavity wall of the box body 201, the slide rod 203 can slide and penetrate through an inner hole of the fixed sleeve 204, the slide rail 202 is horizontally fixed at the upper end of the slide rod 203, the two limit pins 2064 are respectively in sliding fit with two ends of the slide rail 202, the support plate 205 is horizontally fixed at the lower end of the slide rod 203, and the whole slide rail 202, the slide rod 203 and the support plate 205 form an i. The upper ends of the two trigger rods 308 are fixedly connected with the support plate 205, and when the driving slide rod 203 moves downwards, the trigger rods 308 can drive the locking rods 303 to lock.
So as to drive the two limit pins 2064 to extend when the sliding rod 203 moves upwards. The two link sets 206 are symmetrically arranged at two sides of the fixing sleeve 204, and the single link set 206 is taken as an example for illustration, the link set 206 comprises a push-pull rod 2066, an L-shaped rod 2067, an articulated seat 2068 and a connecting body, the articulated seat 2068 is fixed on the inner wall of the wall-mounted box 2 between the support plate 205 and the slide rail 202, the middle turning part of the L-shaped rod 2067 is hinged with the articulated seat 2068, and two end parts of the L-shaped rod 2067 are both located at one side close to the fixing sleeve 204 relative to the middle turning part thereof. The push-pull rod 2066 is hinged between the upper end of the L-shaped rod 2067 and the limit pin 2064 on the corresponding side, the connecting body is hinged between the slide rail 202 and the other end of the L-shaped rod 2067, when the slide bar 203 moves upwards, the slide rail 202 moves upwards along with the slide rail, at this time, the upper end of the L-shaped rod 2067 rotates towards one side of the opening of the side wall of the box body 201 and drives the corresponding limit pin 2064 to slide and extend out, meanwhile, the slide rail 202 drives the connecting block to move upwards and drives the lower end of the L-shaped rod 2067 to rotate towards one side of the fixed sleeve 204, so that the possibility that the limit pin 2064 retreats is.
Through the design of the connecting rod group 206, the sliding rod 203 can be driven to move to achieve the purpose of state switching, the connecting body is driven to move up and down to achieve the purpose of state switching, and the power can be designed to selectively drive the sliding rod 203 or the connecting block according to requirements. In this embodiment, a driving connecting block is selected, and a power mechanism for driving the connecting body to move is arranged in the wall-mounted box 2, so that the sliding rail 202 can vertically slide and the limit pin 2064 can horizontally slide, the power mechanism needs to synchronously ensure that the two connecting blocks synchronously move, and the power mechanism can select linear driving mechanisms such as a gear rack, a hydraulic and pneumatic telescopic rod, an electric push rod and the like. In this embodiment, in order to realize the intermittent operation between the motion of the limit pin 2064 and the motion of the slide rail 202, one of the two starts to operate after the other operates in place, the connecting body includes a rod 2063, a disc 2061 and a shaft 2060, one end of the shaft 2060 can be rotatably inserted into the box 201, the disc 2061 is fixedly sleeved on the insertion end of the shaft 2060, a limit track 2062 is processed on the disc 2061, the limit track 2062 is annular and comprises a first connecting section, a second connecting section and a third connecting section which are connected end to end, the first connecting section is circular arc-shaped, the central angle corresponding to the circular arc is greater than 180 degrees, the second connecting section and the third connecting section are respectively and symmetrically distributed about the center of the first connecting section, the second connecting section and the third connecting section are linear, the connecting line between the connecting point between the second connecting section and the third connecting section and the center of the first connecting section is smaller than the radius of the first connecting section, one end of the rod 2063 is fixedly connected to the slide rail 202, the other end of the rod is in rolling fit with the limit rail 2062 through a roller 2069, and the end of the L-shaped rod 2067 is in rolling fit with the limit rail 2062 through a roller 2069. By designing the limiting rail 2062, the limiting rail 2062 not only has a proximal end and a distal end, but also has a highly symmetrical shape, and can ensure the consistency of the actions of the two limiting pins 2064. When the roller 2069 of the rod 2063 is positioned in the first connecting section, the slide rail 203 is in a stage of moving upwards to the right position, the limit pin 2064 is in a state of gradually extending and locking, otherwise, when the roller 2069 of the rod 2063 enters the second connecting section or the third connecting section and reaches the connecting position between the second connecting section and the third connecting section, the slide rail 203 is in a state of moving downwards to the right position gradually, and before the slide rail 203 starts to move downwards, the limit pin 2064 is withdrawn, so that the states of the two can be continuously changed, a higher mechanical fluency position is provided, and the limit hole 2065 can be well clamped with the wall nail each time.
The power mechanism is used for driving the two shaft bodies 2060 to synchronously and reversely rotate, so that the actions of the limit pins 2064 on the two sides are highly symmetrical. Referring to fig. 4 and 5, the power mechanism includes a lock box 5, and a first gear 504 and a second gear 505 disposed in the lock box 5, specifically, the lock box 5 includes a box shell 503 and a box cover 501 slidably disposed at an opening of the box shell 503, when the box cover 501 slides in place and seals the box shell 503, lock rings of the two are correspondingly spliced, and then the whole lock box 5 is locked by a padlock 502, thereby ensuring higher safety. The case shell 503 is fixed on one side of the wall-mounted case 2 far away from the charger body 1, namely, the back side of the case body 201. The first gear 504 and the second gear 505 are respectively sleeved on the penetrating ends of the two shaft bodies 2060, namely, the first shaft end 506 and the second shaft end 507. The first gear 504 and the second gear 505 are engaged with each other, and a driving force is provided to the shaft body 2060 of one of the first gear 504 and the second gear 505, whereby the state of the wall hanging box 2 can be switched by a single power. In this embodiment, it is preferable that the second shaft end 507 is provided with a driving force, which may be an automatic force such as a servo-controlled motor or a manual force for rotating a lamp, and the latter is selected to realize the switching of the state of the wall-mounted box 2 by rotating the second shaft end 507 by a corresponding angle, in consideration of low cost.
In order to ensure the stability of the rotation in place of the first gear 504 or the second gear 505, a locking mechanism 508 is disposed on the shaft body 2060 of one of the first gear 504 and the second gear 505, that is, the locking mechanism 508 is disposed on the first shaft end 506 or the second shaft end 507. The locking mechanisms 508 may be conventional shaft locking structures, and in this embodiment, there are two groups of locking mechanisms 508 for selectively and individually locking the first shaft end 506 or the second shaft end 507, and the first shaft end 506 and the second shaft end 507 are both formed with rotating rods 509, and the positions and orientations of the rotating rods 509 are always consistent. The two groups of locking mechanisms 508 are respectively located on the left side and the right side of the inner cavity of the box shell 503, and the connecting line direction between the two groups of locking mechanisms is a horizontal direction, and can be respectively used for locking a certain rotating rod 509 which rotates 180 degrees, and the angle of the rotating rod 509 is consistent with the angle of the rotating rod which reaches the state switching after the limiting rail 2062 rotates. The single group of locking mechanisms 508 is taken as an example for expansion, the locking mechanisms 508 comprise a first locking plate 5081 below and a second locking plate 5082 above, the first locking plate 5081 and the second locking plate 5082 are both in a horizontal state, one end of the first locking plate 5081 is fixedly connected with the side wall of the box shell 503, the upper surface of the other end of the first locking plate 5081 is provided with a groove, one end of the second locking plate 5082 is hinged with the side wall of the box shell 503 through a hinge 5083, the lower surface of the other end of the second locking plate 5082 is provided with a groove, a space for clamping the rotating rod 509 is formed between the grooves, and the middle parts of the first locking plate 5081 and the second locking plate are connected through. When the rotating rod 509 on one side is close to the corresponding locking mechanism 508, the rotating rod 509 can be manually clamped, and finally, the locking state of the corresponding first shaft end 506 or second shaft end 507 is achieved by tightening the locking bolt 5084. It should be noted that, a certain space for manual operation needs to be reserved for the operation in the lock box 5, and at this time, the back plate 41 is attached to the wall surface, so that the operation space of the lock box 5 is just reserved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that structures or components illustrated in the drawings are not necessarily drawn to scale, and descriptions of well-known components and processing techniques and procedures are omitted to avoid unnecessarily limiting the invention.