Door lock control structure of tractor cab

Abstract

The utility model relates to the field of vehicles, in particular to a tractor cab door lock control structure which comprises a vehicle door hinged to a vehicle body, a plunger latch mounted on the vehicle body, a door lock mounted on the vehicle door and capable of being locked on the plunger latch, a pull plate arranged on the door lock and used for opening the door lock, and a switch seat mounted on the vehicle door. The switch seat is located on the left side or the right side of the driver seat, a pressing plate is arranged on the switch seat, the rear end of the pressing plate is hinged to the switch seat, a pull rod is hinged to the front end of the pressing plate, the other end of the pull rod is connected with a transverse pull wire, and the other end of the transverse pull wire is connected with the pull plate. The switch base is convenient to install and disassemble and maintain in the later period, and the transverse stay wire is installed in the transverse sleeve. According to the tractor cab door lock control structure, the vehicle door can be rapidly opened through the mechanical linkage device, a driver can open the vehicle door without greatly moving the body, and the operation convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicles, specifically to a tractor cab door lock control structure. Background Technology

[0002] As an important type of agricultural machinery, the design of the tractor's cab directly affects the driver's ease of operation and safety. The cab door lock, as a crucial component of the cab, not only needs to ensure the door is securely locked during driving to prevent accidental opening, but also needs to be easily and quickly opened when needed by the driver. Existing cab door locks use a collision-type lock, such as the one disclosed in patent number 202020861566.4, which has a latch installed on the vehicle body. After the door is closed, the lock automatically locks onto the latch. The lock also has a pull plate; pulling the pull plate unlocks the door.

[0003] To facilitate unlocking via the door handle located on the outside of the door, the door lock on the cab door of a tractor with transmission is usually installed on the left or right front, away from the driver's seat. When the driver wants to unlock the door from inside the cab, he needs to get up and leave the driver's seat and manually turn the door lock. This is not only inconvenient to open the door, but also not quick enough in an emergency, affecting the driver's reaction time. This needs to be improved. Utility Model Content

[0004] The purpose of this invention is to provide a tractor cab door lock control structure that is convenient and quick to open, addressing the above-mentioned problems.

[0005] To achieve the above objectives, this utility model discloses a tractor cab door lock control structure, including a door hinged to the vehicle body, a latch installed on the vehicle body, a door lock installed on the door capable of being locked onto the latch, and a pull plate for opening the door lock. Its structural features are: a switch base is installed on the door, located on the left or right side of the driver's seat; a button is provided on the switch base; the rear end of the button is hinged to the switch base; and a pull rod is hinged to the front end of the button. The other end of the pull rod is connected to a horizontal pull cable, and the other end of the horizontal pull cable is connected to the pull plate. The button, hinged to the switch base, has a simple structure and occupies little space, making it suitable for environments with limited interior space in the cab. The button is linked to the door lock via the horizontal pull cable, realizing remote control of the door lock and reducing the complexity of directly operating the door lock. The switch base is located on the side of the driver's seat, allowing the driver to operate the button to open the door without significant body movement, improving operational convenience.

[0006] A horizontal sleeve is installed on the door, and the switch holder is installed on the horizontal sleeve, which facilitates the installation of the switch holder and its subsequent disassembly and maintenance.

[0007] The horizontal guy cable is installed in the horizontal sleeve. The horizontal and vertical guy cables are the brake cables. The brake cable is inside the cable and outside the cable housing. The end of the cable housing has a spring that allows the cable to extend and retract. The horizontal sleeve hides the cable, making the interior of the cab neater and more aesthetically pleasing, and also protects the horizontal guy cable from damage caused by external friction or vibration, thus extending the cable's service life.

[0008] The switch base is equipped with a spring to reset the button. The spring automatically resets the button after operation, reducing manual intervention and improving ease of use. It also ensures the button remains in a fixed position when not in use, preventing accidental activation due to vibration or accidental touch.

[0009] The door lock is a collision-type door lock, which has two claws for locking the latch. The positions of the two claws correspond to the latch. Collision-type door locks are existing technology. When the pull plate is pulled, the two claws disengage from the latch. When the door is closed, the two claws strike the latch and then close to lock the latch.

[0010] The vehicle body is equipped with a latch seat, and the latch is installed on the latch seat. The rigid structure of the latch seat can withstand the impact force when the door is closed, thus extending the service life of the latch.

[0011] The car door is equipped with a handle base, on which a flap is hinged. A vertical pull cable is connected to the flap, the other end of which is connected to a pull plate. A door handle is mounted on the handle base, and the door handle has a push switch. The push switch has a push rod for rotating the flap, and the push rod is connected to the flap. Pressing the push switch from outside the car pushes the push rod to flip the flap, which in turn pulls the pull plate, thus opening the car door. The pull plate requires only a small amount of movement to unlock the door because although the horizontal and vertical pull cables are pulled in different directions, both can unlock the door.

[0012] Regarding the connection structure between the push rod and the flap, the lower end of the push rod is provided with a connecting rod, which is hinged to the flap.

[0013] A vertical sleeve is installed on the door, located between the door lock and the handle base, with the vertical pull cable installed inside the handle base. The vertical sleeve conceals the pull cable, making the interior of the driver's cab cleaner and more aesthetically pleasing, and also provides protection for the pull cable, preventing damage from external friction or vibration.

[0014] The handle base is located inside the cab, while the door handle is located outside the cab. The door has holes for mounting the handle base.

[0015] In summary, the beneficial effects of this utility model are as follows: the switch seat is located on the side of the driver's seat. When the driver presses the button on the driver's seat, the horizontal cable can pull the lever to open the door lock. The driver can operate the button to open the door without moving his body significantly, which improves the convenience of operation. The mechanical linkage device enables the door to open and close quickly, while ensuring the stability and durability of the door lock, meeting the needs of tractors in complex working conditions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 A magnified view of the local structure at point A;

[0018] Figure 3 for Figure 1 A magnified schematic diagram of the local structure at point B;

[0019] Figure 4 This is a schematic diagram of the horizontal and vertical sleeves.

[0020] Figure 5 for Figure 4 A magnified schematic diagram of the partial structure at point C;

[0021] Figure 6 This is a schematic diagram of the structure of the pull plate;

[0022] Figure 7 This is a schematic diagram of the tie rod structure;

[0023] Figure 8 This is a schematic diagram of the installation structure of the car door.

[0024] In the diagram: 1. Door, 2. Horizontal cable, 3. Switch base, 4. Button, 5. Pull rod, 6. Vertical cable, 7. Flip plate, 8. Door handle, 9. Connecting rod, 10. Door lock, 11. Pull plate, 12. Claw, 13. Horizontal sleeve, 14. Car body, 15. Latch base, 16. Latch, 17. Vertical sleeve, 18. Press switch, 19. Handle base, 20. Push rod. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0026] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0030] A tractor cab door lock control structure 10 includes a door 1 hinged to a vehicle body 14, a latch 16 mounted on the vehicle body 14, a door lock 10 mounted on the door 1 capable of locking onto the latch 16, a pull plate 11 for opening the door lock 10, a switch base 3 mounted on the door 1, the switch base 3 being located on the left or right side of the driver's seat, a push plate 4 mounted on the switch base 3, the rear end of the push plate 4 hinged to the switch base 3, and a pull rod 5 hinged to the front end of the push plate 4. The other end of the pull rod 5 is connected to a horizontal pull cable 2, and the other end of the horizontal pull cable 2 is connected to the pull plate 11. The push plate 4 is hinged to the switch base 3, has a simple structure and occupies little space, making it suitable for environments with limited interior space in the cab. The push plate 4 is linked to the door lock 10 for remote control via the horizontal pull cable 2, reducing the complexity of directly operating the door lock 10. The switch 3 is located on the side of the driver's seat, allowing the driver to operate the button 4 to open the door 1 without having to move their body significantly, thus improving the ease of operation.

[0031] See attached document Figure 3A horizontal sleeve 13 is installed on the door 1, and the switch holder 3 is installed on the horizontal sleeve 13, which facilitates the installation of the switch holder 3 and its subsequent disassembly and maintenance. The horizontal pull cable 2 is installed in the horizontal sleeve 13. The horizontal pull cable 2 and the vertical pull cable 6 are the brake cables. The brake cable has a pull cable inside and a pull cable shell on the outside. The end of the pull cable shell has a spring that can extend and retract the pull cable. The horizontal sleeve 13 hides the pull cable, making the interior of the cab cleaner and more beautiful, and also provides protection for the horizontal pull cable 2, preventing the pull cable from being damaged by external friction or vibration, and extending the service life of the pull cable.

[0032] A spring is installed on the switch base 3 to reset the button 4. The spring automatically resets the button 4 after operation, reducing manual intervention and improving ease of operation. It ensures that the button 4 remains in a fixed position when not in use, preventing accidental activation due to vibration or accidental touch. (See attached diagram.) Figure 5 The door lock 10 is a collision-type door lock 10. The door lock 10 has two claws 12 for locking the latch 16, and the positions of the two claws 12 correspond to the latch 16. The collision-type door lock 10 is existing technology. After pulling the pull plate 11, the two claws 12 disengage from the latch 16. When the door 1 is closed, the two claws 12 impact the latch 16, and then the two claws 12 close to lock the latch 16. A latch seat 15 is installed on the vehicle body 14, and the latch 16 is installed on the latch seat 15. The rigid structure of the latch seat 15 can withstand the impact force when the door 1 is closed, extending the service life of the latch 16.

[0033] See attached document Figure 3 A handle base 19 is installed on the door 1, and a flap is hinged to the handle base 19. A vertical pull cable 6 is connected to the flap, and the other end of the vertical pull cable 6 is connected to a pull plate 11. A door handle 8 is installed on the handle base 19, and a push switch 18 is provided on the door handle 8. The push switch 18 has a push rod 20 for pushing the flap to rotate, and the push rod 20 is connected to the flap. Pressing the push switch 18 from outside the vehicle pushes the push rod 20 to push the flap to flip, and the flap pulls the pull plate 11, thus opening the door 1. The pull plate 11 only requires a small amount of movement to open the door lock 10, because although the horizontal pull cable 2 and the vertical pull cable 6 pull in different directions, they can both open the door lock 10. Regarding the connection structure between the push rod 20 and the flap, a connecting rod 9 is provided at the lower end of the push rod 20, and the connecting rod 9 is hinged to the flap.

[0034] See attached document Figure 4 A vertical sleeve 17 is installed on the door 1, located between the door lock 10 and the handle seat 19. The vertical pull cable 6 is installed in the handle seat 19. The vertical sleeve 17 conceals the pull cable, making the interior of the driver's cab neater and more aesthetically pleasing. It also provides protection for the vertical pull cable 6, preventing it from being damaged by external friction or vibration.

[0035] See attached document Figure 8The handle seat 19 is located inside the cab, and the door handle 8 is located outside the cab. The door body has holes for mounting the handle seat 19.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A tractor cab door lock control structure, comprising a door (1) hinged to a vehicle body (14), a latch (16) installed on the vehicle body (14), a door lock (10) capable of being locked onto the latch (16) installed on the door (1), and a pull plate (11) for opening the door lock (10) provided on the door lock (10), characterized in that, A switch base (3) is installed on the door (1). The switch base (3) is located on the left or right side of the driver's seat. A button (4) is provided on the switch base (3). The rear end of the button (4) is hinged to the switch base (3). A pull rod (5) is hinged to the front end of the button (4). The other end of the pull rod (5) is connected to a horizontal pull line (2). The other end of the horizontal pull line (2) is connected to the pull plate (11).

2. The tractor cab door lock control structure as described in claim 1, characterized in that, A horizontal sleeve (13) is installed on the door (1), and a switch seat (3) is installed on the horizontal sleeve (13).

3. The tractor cab door lock control structure as described in claim 2, characterized in that, The horizontal tie wire (2) is installed in the horizontal sleeve (13).

4. The tractor cab door lock control structure as described in claim 1, characterized in that, The switch base (3) is equipped with a spring for resetting the button (4).

5. The tractor cab door lock control structure as described in claim 1, characterized in that, The door lock (10) is a collision-type door lock. The door lock (10) is provided with claws (12) for locking the latch (16). There are two claws (12), and the positions of the two claws (12) correspond to the latch (16).

6. The tractor cab door lock control structure as described in claim 1, characterized in that, A latch seat (15) is installed on the vehicle body (14), and a latch (16) is installed on the latch seat (15).

7. The tractor cab door lock control structure as described in claim 1, characterized in that, The door (1) is equipped with a handle seat (19), a flap (7) is hinged on the handle seat (19), a vertical pull line (6) is connected to the flap (7), the other end of the vertical pull line (6) is connected to the pull plate (11), a door handle (8) is installed on the handle seat (19), a push switch (18) is provided on the door handle (8), and a push rod (20) for pushing the flap (7) to rotate is provided on the push switch (18), and the push rod (20) is connected to the flap (7).

8. The tractor cab door lock control structure as described in claim 7, characterized in that, The lower end of the push rod (20) is provided with a connecting rod (9), which is hinged to the flap (7).

9. The tractor cab door lock control structure as described in claim 7, characterized in that, A vertical sleeve (17) is installed on the door (1), the vertical sleeve (17) is located between the door lock (10) and the handle seat (19), and the vertical pull line (6) is installed in the handle seat (19).

10. The tractor cab door lock control structure as described in claim 7, characterized in that, The handle seat (19) is located inside the cab, and the door handle (8) is located outside the cab.

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