Folding car coupler
By introducing sensors and electric drive actuators into the folding hook, real-time monitoring of the hook status and fully automatic hook relief function are realized, solving the problems of poor perception of the hook status and airless power source in the prior art.
Patent Information
- Application Number
- CN202420925206.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The existing folding hook slow device has poor perception in the hook state, and the air-free power source cannot realize mechanical automatic hooking and unhooking.
A folding hook including a hook, a folding mechanism and a sensor is designed. The hook state is monitored in real time through the hook until the position sensor and the fixed-in-place sensor, and the mechanical automatic hooking and unhooking functions are realized through the electric drive actuator.
Real-time monitoring of the status of the hook is realized, the perception of the status of the hook is improved, and the fully automatic hook-retardation function is realized through the electric drive actuator, solving the problem of airless power source.
Smart Images
Figure CN222820070U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of rail vehicles, and in particular relates to a folding coupler. Background Art
[0002] The coupler is located at both ends of the train. In order to achieve the purpose of rescue or reconnection, the coupler needs to meet certain length requirements. However, the space at the front end of the train body is often limited. In order to save the space for the coupler installation and take into account the aesthetics of the train, the coupler of the tram generally adopts a folding design. When the vehicle is not in reconnection operation, it is in a folded state and hidden in the opening and closing mechanism. It is only stretched out for use when the coupler is needed in rescue conditions.
[0003] In the prior art, the foldable coupler buffer device generally has the coupler located below the opening and closing mechanism. When the coupler is in the folded or extended state, it is impossible to visually determine whether the coupler is folded and fixed in place or extended in place, and the perception of the coupler state is poor. In addition, since trams have no pneumatic power source, it is impossible to refer to the conventional EMU or subway train coupler buffer device to achieve mechanical automatic coupling and uncoupling and electrical coupling and uncoupling through pneumatic means. Utility Model Content
[0004] The utility model aims to solve one of the above-mentioned technical problems and provide a folding coupler which can monitor the real-time status of the coupler straightening and folding process through a sensor.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A folding coupler, comprising:
[0007] Couplers, including mechanical couplers;
[0008] The folding mechanism comprises a first rotating member and a second rotating member, the first rotating member and the second rotating member are rotatably connected; the first rotating member is connected to the hook head, and the second rotating member is connected to the vehicle body; the folding mechanism has a straight state and a folded state, in the straight state, the angle between the first rotating member and the second rotating member is 180 degrees, and in the folded state, the angle between the first rotating member and the second rotating member is less than 180 degrees;
[0009] A coupler extension in place sensor is installed on the first rotating member or the second rotating member, and the coupler extension in place sensor generates an electrical signal when the folding mechanism is adjusted from a folded state to an extended state;
[0010] The monitoring terminal is electrically connected to the coupler extension in place sensor and receives the electrical signal generated by the coupler extension in place sensor.
[0011] In some embodiments of the utility model, a locking pin is provided on the hook;
[0012] The folding hook further includes a fixing device, the fixing device including a first locking member and a second locking member;
[0013] The first locking member is connected to the vehicle body, and the second locking member is connected to the first locking member;
[0014] The first locking member has a sliding surface, the shape of which matches the movement trajectory of the hook when the folding mechanism is folded;
[0015] The second locking piece is provided with a locking hole. When the folding mechanism is in the folded state, the locking pin is inserted into the locking hole and connected with the second locking piece.
[0016] In some embodiments of the utility model, a coupler fixed in place sensor is installed on the fixing device, and the coupler fixed in place sensor is electrically connected to the monitoring terminal, and sends an electrical signal to the monitoring terminal when the locking pin is inserted into the locking hole and connected with the second locking piece.
[0017] In some embodiments of the utility model, a locking groove is provided on the first rotating member;
[0018] The folding mechanism also includes a transmission member, a locking block and an elastic member;
[0019] The locking block is rotatably connected to the first rotating member and can be stuck in the locking groove or escape from the groove during rotation;
[0020] The transmission member is rotatably connected to the first rotating member and is connected to the locking block. During the rotation of the transmission member, the locking block is driven to rotate so as to move relative to the locking groove.
[0021] The elastic member is connected to the transmission member and the first rotating member respectively. When the transmission member rotates to drive the locking block out of the notch, the elastic member is in a stretched state.
[0022] In some embodiments of the utility model, the coupler also includes an electric coupler, which is connected to the hook head or to the folding mechanism; an electric coupler telescopic cylinder is installed at the tail of the electric coupler.
[0023] In some embodiments of the utility model, an electric coupler extension position sensor and an electric coupler retracted position sensor are installed on the electric coupler telescopic cylinder, and the electric coupler extension position sensor and the electric coupler retracted position sensor are electrically connected to the monitoring terminal respectively. When the electric coupler telescopic cylinder is extended into position, the electric coupler extension position sensor is triggered to send an electrical signal to the monitoring terminal. When the electric coupler telescopic cylinder is retracted into position, the electric coupler retracted position sensor is triggered to send an electrical signal to the monitoring terminal.
[0024] In some embodiments of the utility model, an opening and closing mechanism is further included, the opening and closing mechanism includes a first side air deflector and a second side air deflector, the first side air deflector and the second side air deflector are rotatably mounted on the vehicle body;
[0025] An opening and closing position sensor is installed on the opening and closing mechanism, and the opening and closing position sensor is electrically connected to the monitoring terminal. When the first side air guide cover and the second side air guide cover are rotated and closed in place, the opening and closing position sensor is triggered to send an electrical signal to the monitoring terminal.
[0026] In some embodiments of the utility model, the hook head has a mechanical hook connecting surface, a mechanical hook connecting surface sensor is installed on the mechanical hook connecting surface, the mechanical hook connecting surface sensor is electrically connected to the monitoring terminal, and when the mechanical hook connecting surface is connected in place, the mechanical hook connecting surface sensor is triggered to send an electrical signal to the monitoring terminal.
[0027] In some embodiments of the utility model, the hook head has a mechanical coupler spindle, a mechanical coupler spindle position sensor is installed on the mechanical coupler spindle, the mechanical coupler spindle position sensor is electrically connected to the monitoring terminal, and when the mechanical coupler spindle is in the initial position, the mechanical coupler spindle position sensor is triggered to send an electrical signal to the monitoring terminal.
[0028] In some embodiments of the utility model, the hook head has a mechanical hook unhooking electric cylinder, on which a mechanical hook unhooking position sensor and a mechanical hook unhooking return position sensor are installed, and the mechanical hook unhooking position sensor and the mechanical hook unhooking return position sensor are electrically connected to the monitoring terminal respectively, and when the mechanical hook unhooking electric cylinder executes the unhooking position, the mechanical hook unhooking position sensor is triggered to send an electrical signal to the monitoring terminal, and when the mechanical hook unhooking electric cylinder executes the unhooking return position, the mechanical hook unhooking return position sensor is triggered to send an electrical signal to the monitoring terminal.
[0029] The beneficial effects of the utility model are:
[0030] 1. The folding coupler provided by the utility model realizes the functions of mechanical automatic coupling, mechanical automatic uncoupling, electric hook automatic coupling, electric hook automatic uncoupling, etc. through the layout of the electric drive actuator, solving the problem of no pneumatic power source for the fully automatic coupling and buffering device of trams;
[0031] 2. The folding hook provided by the utility model monitors the real-time status of each folding and extension stage of the folding hook by arranging multiple electrical signal sensors, so that the status of the hook is more intuitive, which is conducive to realizing the full automatic control of the folding hook;
[0032] 2. The fixing device and folding mechanism in the utility model are both composed of a common and simple connecting rod mechanical structure, which is economical and has high universality. When in use, compared with the structure in the prior art that uses an electric cylinder to control the extension and locking of the coupler, the failure probability of the folding coupler is reduced and the service life of the folding coupler is extended. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the specific embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0034] Figure 1 It is a structural schematic diagram of a folding hook provided by the utility model;
[0035] Figure 2 It is a side view of a folding hook provided by the utility model;
[0036] Figure 3 It is a top view of the folding hook in the folded state.
[0037] Figure 4 It is a schematic diagram of the front position of the coupler, fixing device and opening and closing mechanism;
[0038] Figure 5 It is a schematic diagram of the side position of the coupler, fixing device and opening and closing mechanism;
[0039] Figure 6 It is a structural schematic diagram of the folding mechanism in the folding hook;
[0040] Figure 7 It is a schematic diagram of the structure of the fixing device in the folding hook;
[0041] Figure 8 It is a structural schematic diagram of the hook part of the folding hook;
[0042] Fig. 9 A flow chart of the process of extending and folding the folding hook;
[0043] Wherein, the accompanying drawings are marked as follows:
[0044] 1. Hook head; 11. Locking pin;
[0045] 2. Folding mechanism; 21. First rotating member; 22. Second rotating member; 23. Transmission member; 24. Locking block; 25. Elastic member; 26. Center pin; 27. Hook-in-place sensor;
[0046] 3. Fixing device; 31. First locking member; 32. Second locking member; 33. Sensor for fixing the hook in place; 34. Mounting plate;
[0047] 4. Electric coupler extension cylinder; 41. Electric coupler extension position sensor; 42. Electric coupler retraction position sensor;
[0048] 5. Opening and closing mechanism;
[0049] 6. Mechanical coupler spindle; 61. Mechanical coupler spindle position sensor;
[0050] 7. Mechanical coupler unhooking electric cylinder; 71. Mechanical coupler unhooking in place sensor;
[0051] 8. Mechanical hook connected to noodles; 81. First mechanical hook connected to noodles sensor; 82. Second mechanical hook connected to noodles sensor;
[0052] 9. Mounting seat. DETAILED DESCRIPTION
[0053] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.
[0054] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can be applied to other similar scenarios based on these drawings without any creative work.
[0055] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features.
[0056] Unless otherwise defined, the technical terms or scientific terms involved in this application shall have the usual meanings understood by persons with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a kind" and the like involved in this application do not indicate a quantitative limitation and may indicate the singular or plural. The terms "include", "comprises", "has" and any variations thereof involved in this application are intended to cover non-exclusive inclusions.
[0057] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0058] As attached Figure 1-9As shown, in a schematic embodiment of a folding hook of the utility model, the folding hook includes a hook, a folding mechanism 2 and a monitoring terminal.
[0059] Among them, the coupler includes a mechanical coupler. The thick part at the front end of the mechanical coupler is called a hook head 1. A hook tongue, a connecting rod, a main shaft, a tension spring, etc. are installed in the hook head 1 to achieve the connection between a locomotive and a vehicle or between vehicles.
[0060] The folding mechanism 2 includes a first rotating member 21 and a second rotating member 22. The first rotating member 21 and the second rotating member 22 are rotatably connected by a center pin 26, and the first rotating member 21 can rotate around the center pin 26 to achieve the straightening and folding of the folding mechanism 2; the first rotating member 21 is fixedly connected to the hook head 1, and the second rotating member 22 is fixedly connected to the vehicle body through the mounting seat 9.
[0061] The folding mechanism 2 has a straight state and a folded state. In the straight state, as shown in the attached Figure 1-2 As shown, the first rotating member 21 and the second rotating member 22 are located on the same straight line, and the angle between the first rotating member 21 and the second rotating member 22 is 180 degrees; in the folded state, as shown in the attached Figure 3 As shown, the angle between the first rotating member 21 and the second rotating member 22 is less than 180 degrees.
[0062] A hook in-place sensor 27 is installed on the first rotating member 21 or the second rotating member 22 to confirm whether the folding hook is in place. The hook in-place sensor 27 can generate an electrical signal when the folding mechanism 2 is adjusted from a folded state to an extended state. In this embodiment, the hook in-place sensor 27 is fixedly installed at the end of the first rotating member 21 close to the second rotating member 22.
[0063] The monitoring terminal (not shown in the figure) is electrically connected to the coupler straightened in place sensor 27, receives the electrical signal generated by the coupler straightened in place sensor 27, and displays the coupler straightened in place status through the human-computer interaction interface after receiving the signal, so as to realize the monitoring of the coupler straightened state.
[0064] In some embodiments of the present invention, as shown in the attached Figure 4-5 As shown, the vehicle further comprises an opening and closing mechanism 5, which comprises a first side air deflector and a second side air deflector, which are rotatably mounted on the vehicle body. When the first side air deflector and the second side air deflector of the opening and closing mechanism 5 are in a closed state, they form a complete aerodynamic shape of the train and protect the front-end components such as the internal coupler; when the first side air deflector and the second side air deflector of the opening and closing mechanism 5 are in an open state, the coupler is exposed to meet the train coupling and operation requirements.
[0065] Furthermore, an opening and closing position sensor is installed on the opening and closing mechanism 5 to confirm whether the opening and closing mechanism is fully closed. The opening and closing position sensor is electrically connected to the monitoring terminal and sends an electrical signal to the monitoring terminal when the first side air guide cover and the second side air guide cover are both rotated and fully closed, so as to monitor the switch status of the opening and closing mechanism 5.
[0066] In some embodiments of the present invention, as shown in the attached Figure 1-2 As shown, a locking pin 11 is provided on the hook head 1, and the locking pin 11 is installed above the mechanical coupler connecting surface 8 and protrudes from the mechanical coupler connecting surface 8, so as to cooperate with the fixing device 3 to fix the hook head 1 after the coupler is folded.
[0067] The folding hook further includes a fixing device 3, which is an integrated welded structure. Figure 6 As shown, it is composed of a first locking member 31 , a second locking member 32 and a mounting plate 34 .
[0068] The first locking member 31 is connected to the vehicle body through the mounting plate 34, and the second locking member 32 is fixedly connected to the first locking member 31. The first locking member 31 is a plate-shaped structure, having at least one sliding surface, the shape of which matches the movement trajectory of the hook when the folding mechanism 2 is folded; when the hook is folded, the hook can slide on the sliding surface of the first locking member 31.
[0069] The second locking piece 32 is a block structure, and a locking hole is formed on the second locking piece 32. The shape of the locking hole matches the shape of the locking pin 11. When the folding mechanism 2 is in the folded state, the locking pin 11 can be inserted into the locking hole and connected with the second locking piece 32, thereby locking the coupler. This ensures that the coupler can maintain a folded state during the operation of the train, thereby avoiding the coupler from swinging.
[0070] Furthermore, a coupler fixed in place sensor 33 is installed on the fixing device 3 to confirm whether the coupler is fixed in place. The coupler fixed in place sensor 33 is electrically connected to the monitoring terminal, and when the locking pin 11 is inserted into the locking hole and connected and locked with the second locking member 32, an electrical signal is sent to the monitoring terminal, and the locking state of the coupler is displayed through the monitoring terminal, so as to realize the monitoring of the locking state of the coupler.
[0071] As attached Figure 7 As shown, in some embodiments of the present invention, a locking groove is provided on the first rotating member 21 , and the locking groove is located at the end where the first rotating member 21 and the second rotating member 22 are connected, and includes double-side groove walls.
[0072] The folding mechanism 2 further includes a transmission member 23 , a locking block 24 and an elastic member 25 .
[0073] The locking block 24 is rotatably connected to the first rotating member 21 , and the rotation center is located at the upper side or the lower side of the notch of the locking groove. During the rotation process, the locking block 24 can be stuck in the locking groove or escape from the notch.
[0074] The transmission member 23 is rotatably connected to the first rotating member 21 and is connected to the locking block 24. The transmission member 23 drives the locking block 24 to rotate and move relative to the locking groove during the rotation of the transmission member 23. The locking block 24 drives the locking block 24 to rotate and move relative to the locking groove during the rotation of the transmission member 23. When the coupler is in the extended state, the locking block 24 is stuck in the locking groove, limiting the relative rotation of the first rotating member 21 and the second rotating member 22, and realizing the locking of the first rotating member 21 relative to the second rotating member 22; when the coupler is in the rotating state, the locking block 24 is disengaged from the locking groove, releasing the locking of the first rotating member 21 and the first rotating member 21.
[0075] The elastic member 25 is a tension spring, including two tension springs, which are respectively connected to the transmission member 23 and the first rotating member 21. When the transmission member 23 rotates to drive the locking block 24 out of the notch, the elastic member 25 is in a stretched state.
[0076] When the coupler needs to be folded, the transmission member 23 is pressed downward, and the transmission member 23 rotates to drive the locking block 24 to move, so that the locking block 24 is disengaged from the notch. At this time, the tension spring is in a stretched state, and the first rotating member 21 can rotate around the middle pin 26 to complete the folding of the coupler. When the coupler needs to be straightened, the front half of the coupler is pulled to make the first rotating member 21 and the second rotating member 22 return to the same straight line. At this time, under the action of the tension spring, the locking block 24 will slide into the notch to lock the first rotating member 21 and the second rotating member 22.
[0077] The fixing device 3 and the folding mechanism 2 in the utility model are both composed of a common and simple connecting rod mechanical structure, which is economical and has high universality. When in use, compared with the structure in the prior art that uses an electric cylinder to control the extension and locking of the coupler, the failure probability of the folding coupler is reduced and the service life of the folding coupler is extended.
[0078] As attached Figure 8 As shown, in some embodiments of the utility model, the coupler also includes an electric coupler, which is connected to the hook head 1 or to the folding mechanism 2. The tail of the electric coupler is equipped with an electric coupler telescopic cylinder 4 for driving the electric coupler to extend and retract. It should be noted that the electric coupler is located below the mechanical coupler hook head 1, which is not shown in the figure.
[0079] Furthermore, an electric coupler extension position sensor 41 and an electric coupler retracted position sensor 42 are installed on the electric coupler extension cylinder 4. The electric coupler extension position sensor 41 and the electric coupler retracted position sensor 42 are electrically connected to the monitoring terminal respectively. When the electric coupler extension cylinder 4 is extended into position, the electric coupler extension position sensor 41 is triggered to send an electric signal to the monitoring terminal. When the electric coupler extension cylinder 4 is retracted into position, the electric coupler retracted position sensor 42 is triggered to send an electric signal to the monitoring terminal, so as to realize the monitoring of the extension and retraction status of the electric coupler.
[0080] As attached Figure 8 As shown, in some embodiments of the utility model, the hook head 1 has a mechanical hook surface 8, and two mechanical hook surface sensors are installed on the mechanical hook surface 8 to confirm whether the hook mechanical hook surface is connected in place. The two mechanical hook surface sensors are respectively a first mechanical hook surface sensor 81 and a second mechanical hook surface sensor 82. The first mechanical hook surface sensor 81 and the second mechanical hook surface sensor 82 are installed at different positions, and the sensing methods can be the same or different. Both mechanical hook surface sensors are electrically connected to the monitoring terminal, and send electrical signals to the monitoring terminal when the mechanical hook surface 8 is connected in place, so as to monitor the connection status of the mechanical hook.
[0081] As attached Figure 8 As shown, in some embodiments of the utility model, the hook head 1 has a mechanical coupler spindle 6, and a mechanical coupler spindle position sensor 61 is installed on the mechanical coupler spindle 6 to confirm whether the mechanical coupler spindle 6 is in the selected position. The mechanical coupler spindle position sensor 61 is electrically connected to the monitoring terminal. When the mechanical coupler spindle 6 is in the initial position, the mechanical coupler spindle position sensor 41 is triggered to send an electrical signal to the monitoring terminal to realize the monitoring of the mechanical coupler selection position.
[0082] As attached Figure 8 As shown, in some embodiments of the utility model, the hook head 1 has a mechanical hook unhooking electric cylinder 7, on which a mechanical hook unhooking in place sensor 71 and a mechanical hook unhooking return sensor are installed, and the mechanical hook unhooking in place sensor 71 and the mechanical hook unhooking return sensor are electrically connected to the monitoring terminal respectively, and when the mechanical hook unhooking electric cylinder 7 executes the unhooking in place, the mechanical hook unhooking in place sensor 41 is triggered to send an electrical signal to the monitoring terminal, and when the mechanical hook unhooking electric cylinder 7 executes the unhooking return, the mechanical hook unhooking return sensor 72 is triggered to send an electrical signal to the monitoring terminal.
[0083] In order to smoothly monitor the status of the entire process of coupler extension and folding, the relevant status and actions are defined. The status and action definitions of each part of the coupler buffer device are shown in Table 1.
[0084] Table 1: Status and action definitions of various parts of the hook-and-buffer device
[0085]
[0086] As shown in Table 1 and Appendix Fig. 9 As shown, the implementation process of extending and retracting the folding hook of the utility model is as follows:
[0087] When the couplers are to be coupled, the opening and closing mechanism 5 is first opened, and then the couplers are released and straightened. Next, the two couplers can be mechanically coupled, and after the mechanical coupling, the electrical couplers on both sides are pushed out at the same time to complete the electrical coupling, thereby completing the automatic coupling process of the two sets of mechanical couplers.
[0088] When the couplers are separated, the electrical couplers on both sides are retracted at the same time. After the electrical uncoupling, the mechanical uncoupling actuator of the coupler of the master control vehicle is activated, and after the mechanical coupler main shaft 6 is pushed to the uncoupling position, the uncoupling actuator is reset. At this time, the mechanical couplers on both sides are in the uncoupling position, and the two trains are separated. Then the couplers are folded and fixed in place, and the couplers return to the initial position. Finally, the closing mechanism 5 is opened and closed.
[0089] During the extension and retraction process of the folding hook, the extension state and folding state of the hook are monitored in real time through the cooperation of various sensors and the monitoring terminal.
[0090] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0091] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for which protection is requested in the utility model.
Claims
1. A folding coupler, characterized in that: include: A coupler, the coupler comprising a mechanical coupler head; A folding mechanism, the folding mechanism comprising a first rotating member and a second rotating member, the first rotating member and the second rotating member being rotatably connected; The first rotating member is connected to the hook head, and the second rotating member is connected to the vehicle body; The folding mechanism has a straight state and a folded state. In the straight state, the angle between the first rotating member and the second rotating member is 180 degrees. In the folded state, the angle between the first rotating member and the second rotating member is less than 180 degrees. A coupler extension in place sensor is installed on the first rotating member or the second rotating member, and the coupler extension in place sensor generates an electrical signal when the folding mechanism is adjusted from a folded state to an extended state; The monitoring terminal is electrically connected to the coupler extension in place sensor and receives the electrical signal generated by the coupler extension in place sensor.
2. The folding coupler according to claim 1, characterized in that: A locking pin is provided on the hook head; The folding hook further comprises a fixing device, wherein the fixing device comprises a first locking member and a second locking member; The first locking member is connected to the vehicle body, and the second locking member is connected to the first locking member; The first locking member has a sliding surface, the shape of which matches the movement trajectory of the coupler when the folding mechanism is folded; The second locking member is provided with a locking hole. When the folding mechanism is in a folded state, the locking pin is inserted into the locking hole and connected with the second locking member.
3. The folding coupler according to claim 2, characterized in that: A coupler fixed in place sensor is installed on the fixing device, and the coupler fixed in place sensor is electrically connected to the monitoring terminal, and sends an electrical signal to the monitoring terminal when the locking pin is inserted into the locking hole and connected with the second locking piece.
4. The folding coupler according to claim 1, characterized in that: The first rotating member is provided with a locking groove; The folding mechanism also includes a transmission member, a locking block and an elastic member; The locking block is rotatably connected to the first rotating member and can be stuck in the locking groove or escape from the groove during rotation; The transmission member is rotatably connected to the first rotating member and is connected to the locking block, and the locking block is driven to rotate relative to the locking groove during the rotation of the transmission member; The elastic member is connected to the transmission member and the first rotating member respectively, and the elastic member is in a stretched state when the transmission member rotates to drive the locking block to escape from the notch.
5. The folding coupler according to claim 1, characterized in that: The coupler also includes an electric coupler, which is connected to the hook head or the folding mechanism; an electric coupler telescopic cylinder is installed at the tail of the electric coupler.
6. The folding coupler according to claim 5, characterized in that: The electric coupler extension cylinder is provided with an electric coupler extension position sensor and an electric coupler retraction position sensor; The electric coupler extension position sensor and the electric coupler retracted position sensor are electrically connected to the monitoring terminal respectively. When the electric coupler telescopic cylinder is extended into position, the electric coupler extension position sensor is triggered to send an electrical signal to the monitoring terminal. When the electric coupler telescopic cylinder is retracted into position, the electric coupler retracted position sensor is triggered to send an electrical signal to the monitoring terminal.
7. The folding coupler according to claim 1, characterized in that: It further comprises an opening and closing mechanism, the opening and closing mechanism comprises a first side air deflector and a second side air deflector, the first side air deflector and the second side air deflector are rotatably mounted on the vehicle body; An opening and closing position sensor is installed on the opening and closing mechanism, and the opening and closing position sensor is electrically connected to the monitoring terminal. When the first side air guide cover and the second side air guide cover are rotated and closed in place, the opening and closing position sensor is triggered to send an electrical signal to the monitoring terminal.
8. The folding coupler according to claim 1, characterized in that: The hook head has a mechanical hook connection surface, and a mechanical hook connection surface sensor is installed on the mechanical hook connection surface. The mechanical hook connection surface sensor is electrically connected to the monitoring terminal. When the mechanical hook connection surface is connected in place, the mechanical hook connection surface sensor is triggered to send an electrical signal to the monitoring terminal.
9. The folding coupler according to claim 1, characterized in that: The hook head has a mechanical coupler spindle, on which a mechanical coupler spindle position sensor is installed. The mechanical coupler spindle position sensor is electrically connected to the monitoring terminal. When the mechanical coupler spindle is in an initial position, the mechanical coupler spindle position sensor is triggered to send an electrical signal to the monitoring terminal.
10. The folding coupler according to claim 1, characterized in that: The hook head has a mechanical hook unhooking electric cylinder, and a mechanical hook unhooking in-position sensor and a mechanical hook unhooking return sensor are installed on the mechanical hook unhooking electric cylinder; The mechanical coupler unhooking position sensor and the mechanical coupler unhooking return sensor are electrically connected to the monitoring terminal respectively. When the mechanical coupler unhooking electric cylinder executes unhooking and reaches the position, the mechanical coupler unhooking position sensor is triggered to send an electrical signal to the monitoring terminal. When the mechanical coupler unhooking electric cylinder executes unhooking and returns, the mechanical coupler unhooking return sensor is triggered to send an electrical signal to the monitoring terminal.