Up-down coupled coupler, function module, car body and dining car

Abstract

The utility model relates to the technical field of coupler equipment, and discloses an up-down coupled coupler, a function module, a car body and a dining car. The coupler comprises an upper coupler and a lower coupler, the upper coupler is arranged on the function module, the lower coupler is correspondingly arranged on the vehicle body, the upper coupler is provided with a contact pin and a first limiting structure arranged around the peripheral side of the contact pin, and the lower coupler is provided with a jack allowing the contact pin to be inserted and a second limiting structure matched with the first limiting structure; during coupling, the contact pin of the upper coupler is inserted into the jack of the lower coupler, and the first limiting structure is clamped in the second limiting structure to form locking so as to limit movement of the upper coupler, thereby realizing positioning of the functional module. And the functional module and the vehicle body are connected together in an up-and-down coupling mode of the coupler, so that the functional module and the vehicle body are mounted more simply, and a user does not need to squat to pull a power line with a plug and then insert the plug into a socket.

Description

Technical Field

[0001] The utility model relates to the field of coupler equipment, in particular to an upper and lower coupled coupler, a functional module, a vehicle body and a dining vehicle. Background Art

[0002] Plugs and sockets with power cords are widely used. For example, dining cars with detachable functional modules can adapt to the current needs of users by replacing different functional modules by setting the car body and the functional module in a detachable manner. The plug is set on the functional module and the socket is set on the car body. When the functional module and the car body are assembled, the circuit needs to be connected. Therefore, the user needs to squat down and pull the power cord with the plug, and then plug the plug into the socket, which makes the installation of the car body and the functional module complicated. At the same time, the plug and the socket cannot play a role in positioning the functional module. Utility Model Content

[0003] The main purpose of the utility model is to provide a coupler, a functional module, a vehicle body and a dining car that are coupled up and down, aiming to solve the technical problems that the connection method of the power cord and the socket of the existing dining car cannot locate the functional module and the assembly of the vehicle body and the functional module is complicated.

[0004] To achieve the above-mentioned purpose, the utility model provides a coupler for upper and lower coupling, which is applied to a dining car with modular matching function, the dining car includes a car body and a functional module, the functional module is detachably arranged on the car body, the coupler includes an upper coupler and a lower coupler, the upper coupler is arranged on the functional module, and the lower coupler is correspondingly arranged on the car body, and is characterized in that the upper coupler is provided with a pin and a first limiting structure arranged around the circumference of the pin, the lower coupler is provided with a hole for inserting the pin and a second limiting structure adapted to the first limiting structure, when coupling, the pin of the upper coupler is inserted into the hole of the lower coupler, the first limiting structure is engaged in the second limiting structure to form a lock, so as to limit the movement of the upper coupler.

[0005] Furthermore, in one embodiment, the width of the first limiting structure at one end close to the functional module is greater than the width at the other end, and the width of the second limiting structure at one end close to the vehicle body is less than the width at the other end, and the first limiting structure is inserted into the second limiting structure to form a lock to limit the movement of the upper coupler.

[0006] Furthermore, in one embodiment, the first limiting structure is a hollow protrusion, the pin is arranged in the hollow position of the hollow protrusion, and the second limiting structure is a groove, the hollow protrusion is embedded in the groove to limit the movement of the upper coupler.

[0007] Furthermore, in one embodiment, the cross-section of the hollow protrusion is a rectangle, the inner side wall of the groove is a rectangle that matches the hollow protrusion, and the hollow protrusion is inserted into the groove to block each other.

[0008] Further, in one embodiment, the upper coupler is rotatably disposed on the functional module via a rotating member.

[0009] Furthermore, in one embodiment, the lower coupler also includes a fixed seat, a conductive component and a blocking member, the second limiting structure is arranged on the fixed seat, the blocking member is arranged on the fixed seat and is located in the second limiting structure, the conductive component includes a conductive plate and a plurality of tubular conductors, the conductive plate is embedded in the side of the blocking member facing the plug pin, the plurality of tubular conductors are all arranged on the conductive plate and are located in the blocking member, the sockets are arranged on the conductive plate, and each of the sockets is correspondingly connected to each of the tubular conductors.

[0010] Furthermore, in one embodiment, three pins are provided, three sockets are provided correspondingly, and three tubular conductors are provided correspondingly, and each pin is respectively inserted into each socket to be electrically connected with each tubular conductor.

[0011] Furthermore, in one embodiment, the upper coupler includes an upper cover having a first notch, a lower cover having a second notch, and a power cord, the upper cover is covered on the lower cover, the first notch and the second notch form a threading hole, one end of the power cord passes through the threading hole to be electrically connected to the pin, and the other end of the power cord is electrically connected to an external power supply device.

[0012] Further, in one embodiment, the lower coupler further comprises a waterproof silicone sheet, and the waterproof silicone sheet is arranged in the jack; and / or,

[0013] The lower coupler is also provided with a second fixing hole.

[0014] The utility model also provides a functional module, which is applied to a dining car. The dining car comprises a car body, a functional module and the upper coupler. The functional module is detachably arranged on the car body, and the upper coupler is arranged on the functional module.

[0015] The utility model also provides a vehicle body, which is applied to a dining car. The dining car comprises a vehicle body, a functional module and the lower coupler. The functional module is detachably arranged on the vehicle body, and the lower coupler is arranged on the vehicle body.

[0016] The utility model also provides a dining car with modular matching function, the dining car includes a car body, a functional module and the coupler, the functional module is detachably arranged on the car body, the coupler includes an upper coupler and a lower coupler, the upper coupler is arranged on the functional module, the lower coupler is correspondingly arranged on the car body, and the upper coupler is coupled to the lower coupler.

[0017] In the technical solution provided by the utility model, a first limiting structure is provided on the upper coupler and a second limiting structure matched with the first limiting structure is provided on the lower coupler, so that when the upper coupler and the lower coupler are coupled, the pin of the upper coupler is inserted into the jack of the lower coupler to realize power-on, and the first limiting structure is engaged in the second limiting structure to form a lock to limit the movement of the upper coupler. Since the upper coupler is fixed on the functional module, the functional module is positioned; and the functional module and the vehicle body are connected together by the upper and lower coupling method of the coupler, so that the installation of the functional module and the vehicle body is simpler, and the user does not need to squat down to pull the power cord with a plug and then insert the plug into the socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] One or more embodiments are exemplarily described by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and the figures in the drawings do not constitute proportional limitations unless otherwise stated.

[0019] Figure 1 A schematic diagram of the assembly of a functional module and a coupler of the utility model;

[0020] Figure 2 It is an exploded side partial enlarged view of a functional module and a coupler assembled in the utility model;

[0021] Figure 3 A schematic diagram of a vehicle body and a coupler assembled according to the utility model;

[0022] Figure 4 It is an exploded schematic diagram of a dining car and a coupler assembled according to the utility model;

[0023] Figure 5 A schematic diagram of a dining car and a coupler assembled according to the utility model;

[0024] Figure 6 A cross-sectional schematic diagram of a coupler according to an embodiment of the utility model;

[0025] Figure 7 A schematic diagram of the coupler structure of an embodiment of the utility model;

[0026] Figure 8This is a schematic diagram of the exploded structure of a coupler according to an embodiment of the utility model;

[0027] Fig. 9 is a schematic diagram of the structure of the lower coupler;

[0028] Fig.10 is a structural schematic diagram of the upper coupler;

[0029] Fig.11 It is a structural schematic diagram of an upper coupler with flat pins arranged vertically and side by side;

[0030] Fig.12 It is a schematic diagram of the structure of an upper coupler with flat pins arranged side by side in a horizontal manner;

[0031] Fig.13 It is a schematic diagram of the structure of the upper coupler with a circular pin;

[0032] Fig.14 is a side view of the upper coupler;

[0033] Fig.15 is a side view of the first limiting structure from one viewing angle;

[0034] Fig.16 This is a side view of the first limiting structure from another perspective.

[0035] Among them, 100, coupler; 1, upper coupler; 10, pin; 11, first limiting structure; 12, upper cover; 120, first fixing hole; 13, lower cover; 2, lower coupler; 20, jack; 21, second limiting structure; 22, fixing seat; 23, conductive component; 230, conductive plate; 231, tubular conductor; 3, rotating part; 31, first rotating plate; 32, second rotating plate; 33, first bushing; 24, power cord; 25, second fixing hole; 200, dining car; 201, car body; 202, functional module; 203, main body; 204, limiting block; 205, beam; 206, beam body; 207, limiting plate. DETAILED DESCRIPTION

[0036] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element, or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right", "inside", "outside" and similar expressions used in this specification are only for illustrative purposes. In the description of the utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, unless otherwise specified, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; the meaning of "multiple" is two or more. The term "include" and any variation thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof may be present or added.

[0037] In addition, unless otherwise expressly 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 a direct connection, an indirect connection through an intermediate medium, or a connection between two components. All technical and scientific terms used in this specification have the same meaning as those generally understood by technicians in the technical field of the present utility model. The terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not used to limit the present utility model. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0038] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] Figure 1 and Figure 2 As shown, the embodiment of the present utility model discloses a functional module 202.

[0040] The function module 202 is applied to the dining car 200, which includes a car body 201, a function module 202 and an upper coupler 1. The function module 202 is detachably fixed to the car body 201. The upper coupler 1 is rotatably arranged on the function module 202 through a rotating member 3 such as a hinge. The function module 202 is coupled to the car body 201 by inserting the upper coupler 1 into the lower coupler 2. The function module 202 includes a body 203 and a limit block 204. The upper coupler 1 is arranged on one end of the body 203 and faces one side of the car body 201.

[0041] Specifically, the number of the limit blocks 204 can be 1, 2, 3, 4, etc. The specific number of the limit blocks 204 is not limited, and the preferred limit block is 2, and they are arranged on both sides of the upper coupler 1, so that the functional module 202 can be evenly stressed.

[0042] The rotating member 3 may be a hinge or other rotating member, and the rotating member 3 is disposed between the upper coupler 1 and the functional module 202. Figure 2 As shown, the hinge includes a first rotating plate 31, a second rotating plate 32, a first shaft sleeve 33 and a second shaft sleeve (not shown in the figure), the first rotating plate 31 is fixed on the first shaft sleeve 33, the second rotating plate 32 is fixed on the second shaft sleeve, the first shaft sleeve 33 and the second shaft sleeve are rotatably connected by a pin, the first rotating plate 31 is fixed on the upper coupler 1, and the second rotating plate 32 is fixed on the functional module 202, so that the upper coupler 1 can be opened to a certain angle (such as Figure 2 As shown), lifting one end of the functional module 202 will not limit the position of the upper coupler 1, thereby damaging the plug.

[0043] Figure 1 In order to show a schematic diagram of one of the functional modules 202, the specific structure of the functional module 202 is not limited. The functional module 202 includes any one of a heating module, a heat preservation module and a cold preservation module. The heating module can be a heating device such as an induction cooker, an electric oven, a gas stove, etc. The heat preservation module can be a control board with a constant temperature function, and the cold preservation module can be a cold preservation control board with a cold preservation function. Functional modules 202 with the same function can be installed on the vehicle body 201 at the same time, and different functional modules 202 can also be installed according to actual requirements, so that the dining car 200 can achieve the effect of heating, heat preservation, cooling or keeping fresh the food.

[0044] like Figure 3As shown, the embodiment of the utility model also discloses a vehicle body 201. The dining vehicle 200 includes a vehicle body 201, a functional module 202 and a lower coupler 2. The functional module 202 is detachably arranged on a crossbeam 205 of the vehicle body 201, and the lower coupler 2 is fixed on the vehicle body 201. The upper coupler 1 is rotatably arranged on the functional module 202 by means of a hinge or the like, and the functional module 202 is coupled to the vehicle body 201 by plugging the upper coupler 1 into the lower coupler 2. The vehicle body 201 includes a crossbeam 205 and supporting legs. The crossbeam 205 is horizontally arranged between the supporting legs to form a frame. The crossbeam 205 includes a crossbeam 205 body 203 and a limit plate 207 protruding along the crossbeam 205 body 203.

[0045] like Figure 4 and Figure 5 As shown, an embodiment of the present utility model discloses a dining car 200 with modular matching function.

[0046] The dining car 200 can be used for banquets or buffets in a hotel. The multifunctional module 202 is used to improve the practicality and intelligence of the dining car 200. The functional module 202 includes any one of a heating module, a heat preservation module and a cold preservation module. The heating module can be a heating device such as an induction cooker, an electric oven, a gas stove, etc. The heat preservation module can be a control panel with a constant temperature function, and the cold preservation module can be a cold preservation control panel with a cold preservation function. Functional modules 202 with the same function can be installed on the vehicle body at the same time, or different functional modules 202 can be installed according to actual requirements, so that the dining car 200 can achieve the effect of heating, heat preservation, cooling or keeping fresh the food.

[0047] The dining car 200 includes a car body 201, a functional module 202 and a coupler 100. The coupler 100 includes an upper coupler 1 and a lower coupler 2. The upper coupler 1 is fixed to the functional module 202 by rotating a rotating member 3. The functional module 202 includes a body 203 and a limit block 204. The upper coupler 1 is arranged on one end of the body 203 and faces the side of the car body 201. The car body 201 includes a crossbeam 205 and supporting feet (not marked in the figure). The crossbeam 205 is horizontally arranged between the supporting feet to form a frame. The crossbeam 205 includes a crossbeam body 206 and a limit plate 207 protruding along the crossbeam body. The lower coupler 2 is fixed to the crossbeam body 206 of the car body 201. Then, when installing the functional module 202 on the car body 201, first place the functional module 202 roughly above the car body 201. , then align the pin 10 of the upper coupler 1 with the socket 20 of the lower coupler 2, and then insert the pin 10 into the socket 20, and at the same time, the first limiting structure 11 of the upper coupler 1 is inserted into the second limiting structure 21 of the lower coupler 2, and the second limiting structure 21 limits the movement of the first limiting structure 11, and the functional module 202 is fixed on the upper coupler 1, so that the coupler 100 can limit the functional module 202, and the limiting block 204 is supported on the limiting plate 207 to limit the functional module 202, further consolidating the stability of the functional module 202, and connecting the functional module 202 and the vehicle body 201 together by coupling the coupler 100 up and down, so that the installation of the functional module 202 and the vehicle body 201 is simpler, and the user does not need to squat down to pull the power cord with a plug and then insert the plug into the socket.

[0048] Among them, the limit block 204 can be 1, 2, 3, 4, etc. The specific number of the limit blocks 204 is not limited. The preferred limit block is 2, and they are arranged on both sides of the upper coupler 1, so that the functional module 202 can be evenly stressed.

[0049] Please refer to Figure 6-Figure 16 The embodiment of the utility model also discloses a coupler 100 for upper and lower coupling.

[0050] In one embodiment, if Figure 6-Figure 16As shown, the coupler 100 includes a coupled upper coupler 1 and a lower coupler 2, and the functional module 202 is coupled to the vehicle body 201 by plugging the upper coupler 1 into the lower coupler 2. The upper coupler 1 includes an upper cover 12 with a first notch, a lower cover 13 with a second notch, and a power cord 24. The shapes of the first notch and the second notch are both semicircular. Therefore, when the upper cover 12 is covered on the lower cover 13, the first notch and the second notch form a threading hole, and form a hollow cavity for the power cord 24 to pass through, so that the upper coupler 1 is powered inside and outside. In this embodiment, the upper cover 12 and the lower cover 13 are an integrated structure, which is connected into one by welding, saving process flow, reducing costs, and the structure is simple and easy to assemble. The pin 10 is fixed on an outer surface of the lower cover 13 on one side facing the lower coupler 2, and passes through the outer surface into the hollow cavity to be electrically connected to one end of the power cord 24, and the other end of the power cord 24 is electrically connected to an external power supply, thereby realizing the power supply of the upper coupler 1 inside and outside.

[0051] Furthermore, the upper cover 12 is provided with a plurality of first fixing holes 120 , wherein the number of the first fixing holes 120 may be 2, 4, etc. The upper coupler 1 is fixed to the functional module 202 by screws or bolts, so that the upper coupler 1 is easy to assemble and disassemble.

[0052] The first limiting structure 11 is fixed on an outer surface of the lower cover 13 . The first limiting structure 11 is disposed around the circumference of the plug pins 10 , so that the first limiting structure 11 surrounds all the plug pins 10 .

[0053] The lower coupler 2 includes a fixed seat 22 and a conductive component 23. The conductive component 23 includes a conductive plate 230 and a plurality of tubular conductors 231. The second limiting structure 21 is arranged in the fixed seat 22. The blocking member is fixed on the fixed seat 22 and is located in the second limiting structure 21. The conductive plate 230 is embedded in the end surface of the blocking member facing the pin 10. The plurality of tubular conductors 231 are all electrically connected to the conductive plate 230, and the tubular conductors 231 are located in the blocking member. The blocking member plays a role in protecting the tubular conductors 231 and further cooperates with the second limiting structure 21 to better limit the first limiting structure 11. The socket 20 is arranged on the conductive plate 230, and each socket 20 is correspondingly connected to each of the tubular conductors 231, so that each pin 10 can be inserted into the tubular conductor 231 through each socket 20, so that the upper coupler 1 and the lower coupler 2 of the coupler 100 are energized, and the first limiting structure 11 and the second limiting structure 21 that is adapted to the first limiting structure 11 are engaged, and the first limiting structure 11 and the second limiting structure 21 are mutually locked. Therefore, the second limiting structure 21 limits the movement of the first limiting structure 11, that is, the lower coupler 2 plays a limiting role on the upper coupler 1. Because the upper coupler 1 is fixed on the functional module 202, the lower coupler 2 also plays a certain limiting role on the functional module 202. This makes it difficult for the assembled functional module 202 to move, and also prevents the upper coupler 1 from being displaced and damaging the pin 10, thereby preventing poor contact or short circuit. The functional module 202 and the vehicle body 201 are connected together by coupling the coupler 100 up and down, making the installation of the functional module 202 and the vehicle body 201 easier, without the need for the user to squat down and pull the power cord with a plug and then insert the plug into the socket.

[0054] Specifically, three pins 10 are provided, namely, a ground pin 10, a neutral pin 10 and a live pin 10, three jacks 20 are provided corresponding to the pins 10, and three tubular conductors 231 are provided corresponding to the pins 10. Each pin 10 is respectively inserted into each jack 20 and electrically connected to each tubular conductor 231, so as to realize the electrical connection of the coupler 100; and the three pins 10 are arranged side by side, and the ground pin 10 is located between the neutral pin 10 and the live pin 10, and the arrangement is compact, so that the structure of the coupler 100 is simple; Figure 6 , Figure 8 and Fig.11 As shown, the cross section of the plug pin 10 is flat, and the plug pins 10 are arranged vertically side by side. Fig.12 As shown, the pins 10 are flat, and the pins 10 are arranged side by side in a horizontal manner. The difference between the vertical arrangement and the horizontal arrangement is that the pins 10 are rotated 90° in the vertical arrangement; Fig.13 As shown, the cross section of the pin 10 is circular.

[0055] Further, such as Figure 1 and Figure 2 As shown, the upper coupler 1 is rotatably arranged on the functional module through a rotating member 3, wherein the rotating member 3 can be a hinge or other rotating means, and the rotating member 3 is arranged between the upper coupler 1 and the functional module 202. The hinge includes a first rotating plate 31, a second rotating plate 32, a first shaft sleeve 33 and a second shaft sleeve, the first rotating plate 31 is fixed on the first shaft sleeve 33, the second rotating plate 32 is fixed on the second shaft sleeve, the first shaft sleeve 33 and the second shaft sleeve are rotatably connected by a pin, the first rotating plate 31 is fixed on the upper coupler 1, and the second rotating plate 32 is fixed on the functional module 202, so that the upper coupler 1 can be opened to a certain angle, so that one end of the functional module 202 is lifted without limiting the position of the upper coupler 1, thereby damaging the plug.

[0056] Furthermore, the lower coupler 2 also includes a waterproof silicone sheet (not shown), which is disposed in the jack 20, so that the coupler 100 has a waterproof effect. The lower coupler 2 is also provided with two second fixing holes 25, which are respectively located on both sides of the fixing seat 22, and the vehicle body 201 is provided with through holes corresponding to the second fixing holes 25. The second fixing holes 25 are aligned with the through holes, and then fasteners such as screws and bolts are inserted into the second fixing holes 25 and the through holes in turn, and rotated to tighten the fasteners, so that the lower coupler 2 can be fixed on the vehicle body 201.

[0057] In one embodiment, if Fig.14 As shown, the width H2 of one end of the first limiting structure 11 close to the functional module 202 is greater than the width H1 of the other end of the first limiting structure 11, that is, the width H2 of one end of the first limiting structure 11 close to the lower cover 13 is greater than the width H1 of the other end of the first limiting structure 11, and the width H1 of the other end of the first limiting structure 11 is smaller, so that the first limiting structure 11 is a structure with one end larger and the other end smaller, that is, in an inclined state, and the width of the second limiting structure 21 at one end close to the vehicle body 201 is smaller than the width of the other end of the second limiting structure 21, so that the second limiting structure 21 is a structure with one end larger and the other end smaller. The structure is small at one end and large at the other end, that is, it is in an inclined state, and the first limiting structure 11 and the second limiting structure 21 are inclined and engaged. Due to the principle of mechanics, when the user operates on the functional module 202, the functional module 202 applies a downward pressure to the upper coupler 1. Under the effect of the downward pressure, the first limiting structure 11 presses the second limiting structure 21 tighter and tighter, so that the upper coupler 1 and the lower coupler 2 are more firmly engaged, and the second limiting structure 21 limits the first limiting structure 11 therein to prevent the upper coupler 1 from moving, thereby realizing the positioning of the functional module 202. Positioning can also be understood as limiting.

[0058] Furthermore, the first limiting structure 11 is a hollow protrusion, that is, the hollow protrusion is fixed on the lower cover 13 and protrudes from the lower cover 13, and the pin 10 is arranged in the hollow position of the hollow protrusion, so that the hollow protrusion surrounds the pin 10 to protect the pin 10. The second limiting structure 21 is a groove. During coupling, the hole protrusion is embedded in the groove. Since the side wall of the hollow protrusion is an inclined surface, the inner side wall of the groove is an inclined surface. The engagement of the inclined surface and the inclined surface makes the connection between the upper coupler 1 and the lower coupler 2 more secure, and the inclined surface design facilitates the upper coupler to slide into the lower coupler.

[0059] Furthermore, if Fig. 9 As shown, the cross section of the hollow protrusion is rectangular, and the rectangle can be a rectangle or a square, preferably a rectangle. Specifically, the hollow protrusion includes four side walls, such as Fig.15 and Fig.16 As shown, the two opposite side walls are equilateral trapezoids of the same size, that is, the hollow protrusion is arranged at one end of the lower cover 13 and gradually becomes smaller along the center line of the rectangle. The cross-section of the groove is a rectangle that matches the hollow protrusion. The hollow protrusion is inserted into the groove. Since the rectangle has four corners, they can limit each other, so that the hollow protrusion and the groove can stop each other without displacement and rotation, thereby realizing the positioning of the functional module 202, and the four corners are rounded to avoid sharp corners that scratch users, and to avoid direct collision damage between the first limiting structure 11 and the second limiting structure 21.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A coupler for coupling up and down, applied to a dining car with modular matching function, the dining car comprises a vehicle body and a functional module, the functional module is detachably arranged on the vehicle body, characterized in that: The coupler includes an upper coupler and a lower coupler, the upper coupler is arranged on the functional module, and the lower coupler is correspondingly arranged on the vehicle body, the upper coupler is provided with a pin and a first limiting structure arranged around the circumference of the pin, and the lower coupler is provided with a hole for inserting the pin and a second limiting structure adapted to the first limiting structure. During coupling, the pin of the upper coupler is inserted into the hole of the lower coupler, and the first limiting structure is engaged in the second limiting structure to form a lock to limit the movement of the upper coupler.

2. The coupler according to claim 1, characterized in that The width of one end of the first limiting structure close to the functional module is greater than the width at the other end, and the width of one end of the second limiting structure close to the vehicle body is less than the width at the other end. The first limiting structure is inserted into the second limiting structure to form a lock to limit the movement of the upper coupler.

3. The coupler according to claim 2, characterized in that: The first limiting structure is a hollow protrusion, and the pin is arranged in the hollow position of the hollow protrusion. The second limiting structure is a groove, and the hollow protrusion is embedded in the groove to limit the movement of the upper coupler.

4. The coupler according to claim 3, characterized in that: The cross section of the hollow protrusion is a rectangle, the cross section of the groove is a rectangle matching the hollow protrusion, and the hollow protrusion is inserted into the groove to block each other.

5. The coupler according to claim 1, characterized in that: The upper coupler is rotatably arranged on the functional module via a rotating member.

6. The coupler according to claim 1, characterized in that The lower coupler also includes a fixed seat, a conductive component and a blocking member, the second limiting structure is arranged on the fixed seat, the blocking member is arranged on the fixed seat and is located in the second limiting structure, the conductive component includes a conductive plate and a plurality of tubular conductors, the conductive plate is embedded in the side of the blocking member facing the plug pin, the plurality of tubular conductors are all arranged on the conductive plate and are located in the blocking member, the jack is arranged on the conductive plate, and each of the jacks is correspondingly connected to each of the tubular conductors.

7. The coupler according to claim 5, characterized in that The pins are provided in three, the sockets are provided in three correspondingly, and the tubular conductors are provided in three correspondingly. Each of the pins is respectively inserted into each of the sockets and electrically connected to each of the tubular conductors.

8. The coupler according to claim 1, characterized in that The upper coupler includes an upper cover with a first notch, a lower cover with a second notch and a power cord, the upper cover is covered on the lower cover, the first notch and the second notch form a threading hole, one end of the power cord passes through the threading hole and is electrically connected to the pin, and the other end of the power cord is electrically connected to an external power supply device.

9. The coupler according to claim 1, characterized in that: The lower coupler further comprises a waterproof silicone sheet, and the waterproof silicone sheet is arranged in the plug hole; and / or, The lower coupler is also provided with a second fixing hole.

10. A functional module, applied to a dining car, characterized in that: The dining car comprises a car body, a functional module and the upper coupler described in claims 1 to 9, wherein the functional module is detachably arranged on the car body, and the upper coupler is arranged on the functional module.

11. A vehicle body, used in a dining vehicle, characterized in that: The dining car comprises a car body, a functional module and the lower coupler described in claims 1 to 9, wherein the functional module is detachably arranged on the car body, and the lower coupler is arranged on the car body.

12. A dining car with modular matching function, characterized in that: The dining car includes a car body, a functional module and the coupler described in claims 1 to 9 above, wherein the functional module is detachably arranged on the car body, and the coupler includes an upper coupler and a lower coupler, wherein the upper coupler is arranged on the functional module, and the lower coupler is correspondingly arranged on the car body, and the upper coupler is coupled to the lower coupler.

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