An electric control door lock device applied to agricultural machinery

Abstract

The utility model discloses an electric control door lock device for agricultural machine, including the lock frame, the lock frame is fixedly installed with handle, lock body, motor, gear cover and relay no.

Description

Technical Field

[0001] This utility model relates to an electronically controlled door lock device for agricultural machinery, belonging to the field of agricultural machinery cockpit technology. Background Technology

[0002] Unlocking the farm machinery door is the first action a user takes when starting to drive the machinery. Traditional farm machinery door locks are mainly mechanical, relying entirely on physical keys. The key is inserted into the lock cylinder to unlock, and the latch is pressed or pulled to open the door. However, when the user's hands are covered in mud or oil, or when they are far from the vehicle, finding and inserting the key is very inconvenient and inefficient.

[0003] Currently, some agricultural machinery door locks on the market are remote-controlled. If a remote-controlled lock experiences a battery failure, circuit malfunction, or motor damage, the user may be completely unable to open the door, rendering the agricultural machinery unusable. There are currently no agricultural machinery door locks on the market that are compatible with both mechanical and remote-controlled opening, failing to meet users' needs for convenient control. Utility Model Content

[0004] This utility model addresses the shortcomings of the prior art by providing an electronically controlled door lock device for agricultural machinery. It is compatible with both mechanical and remote unlocking, solves the problem of ease of operation, meets user needs, prevents accidental triggering, and solves the problem of motor stalling and easy burnout. It also has the advantage of high system reliability.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: An electronically controlled door lock device for agricultural machinery includes a lock frame. A handle, lock body, motor, gear cover, and relay are fixedly mounted on the lock frame by bolts. A control box and lock cylinder switch are arranged above the lock body. The lock body is provided with a latch block and a latch. Pushing the latch block causes the latch to rotate, thereby opening the door lock. When the lock body is in the locked state, the latch touches the lock cylinder switch, and the lock cylinder switch is closed. When the lock body is in the free state, the latch block is in close contact with the push plate of the rack and pinion and the lock cylinder push rod of the lock cylinder.

[0006] Furthermore, the rack is slidably installed inside the gear housing, and the sliding stroke of the rack is limited by the gear housing and the lock frame; a return spring is installed between the rack and the gear housing, and a push plate is provided at the bottom of the rack for pushing the locking tongue block to move.

[0007] Furthermore, the rack meshes with a gear, which is mounted on the output shaft of the motor.

[0008] Furthermore, the handle is equipped with a light strip, a lock cylinder, a pressure plate, and a handle switch, both of which are normally open switches.

[0009] Furthermore, the light strip is located on the outside of the handle and is activated by the control box.

[0010] Furthermore, a lock cylinder push rod is provided at the inner end of the lock cylinder, which is used for key insertion.

[0011] Furthermore, the handle switch is installed between the pressure plate and the handle. The lower end of the pressure plate is fixed to the inside of the handle with screws, and is kept at a certain distance from the handle switch.

[0012] Furthermore, the control box includes a control circuit and a relay one; wherein the control circuit is controlled by a controller, which is an NFC magnetic card or a superheterodyne remote control; the control circuit is connected in series with the input circuit of relay one, and the output circuit of relay one is connected in series with the light strip; the control circuit is connected in series with the lock cylinder switch, the handle switch, and the input circuit of relay two.

[0013] Furthermore, the input circuit of relay two is controlled by a control box, a lock core switch, and a handle switch connected in series; the output circuit of relay two is connected in series with the output circuit of relay one and the motor.

[0014] Furthermore, a sealing gasket is fitted between the lock frame and the handle, and a protective shell is installed on the side of the lock frame away from the handle.

[0015] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages: The system introduces a remote unlocking method, allowing users to unlock the electronic control system simply by operating the controller and then open the door by pulling the handle. This eliminates the need to retrieve keys, greatly improving ease of operation and making it particularly suitable for modern farm operations. At the same time, it retains a complete mechanical key unlocking channel, so even if the electronic control system fails completely, users can still open the door by inserting the key and pressing the lock cylinder. This electromechanical complementary design ensures the most basic reliability of the door lock and eliminates users' concerns about the reliability of the electronic control system.

[0016] The remote unlocking system employs a dual activation mechanism. The controller acts as the master switch, supplying power to the entire control system and illuminating the indicator lights. The handle switch is the execution switch. The motor only activates when the remote unlocking is performed first, followed by actively pulling the handle to press the pressure plate. This design effectively prevents accidental opening due to the handle being snagged or bumped during transportation or parking, thus enhancing safety.

[0017] By using a lock cylinder switch as a status detection and motor protection device, it is ensured that the motor only works during the brief process of pushing the lock tongue. Once the lock tongue is in place and the door is opened, the motor stops immediately, fundamentally preventing the risk of burning out the motor due to stalling, and greatly improving the reliability and service life of the electrical control system.

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is a cross-sectional schematic diagram of the present invention along the vertical direction; Figure 2 This is a cross-sectional schematic diagram of the present invention along the horizontal direction; Figure 3 This is a schematic diagram of the installation of the gear and rack in this utility model; Figure 4 This is the circuit diagram of this utility model.

[0020] In the diagram, 1-controller, 2-key, 3-handle, 4-light strip, 5-lock cylinder, 6-lock cylinder push rod, 7-sealing gasket, 8-control box, 9-lock cylinder switch, 10-lock body, 11-lock tongue lever, 12-protective shell, 13-lock frame, 14-pressure plate, 15-handle switch, 16-rack, 17-reset spring, 18-gear, 19-motor, 20-gear cover, 21-relay one, 22-relay two, 23-lock tongue. Detailed Implementation

[0021] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0022] like Figures 1-4 As shown in the figure, this utility model provides an electronically controlled door lock device for agricultural machinery, including a lock frame 13. A handle 3, a lock body 10, a motor 19, a gear cover 20, and a relay 22 are fixedly installed on the lock frame 13 by bolts. A control box 8 and a lock cylinder switch 9 are provided above the lock body 10.

[0023] The lock body 10 is a 502 lock body, and is equipped with a bolt lever 11 and a bolt 23. Pushing the bolt lever 11 can rotate the bolt 23, thereby opening the door lock. When the lock body 10 is in the locked state, the bolt 23 touches the lock cylinder switch 9, and the lock cylinder switch 9 is closed; when the lock body 10 is in the free state, the bolt lever 11 is in close contact with the push plate of the rack 16 and the lock cylinder push rod 6 of the lock cylinder 5.

[0024] The rack 16 is slidably mounted inside the gear housing 20, and the sliding stroke of the rack 16 is limited by the gear housing 20 and the lock frame 13. A return spring 17 is installed between the rack 16 and the gear housing 20, and the return spring 17 is used to reset the rack 16. The bottom of the rack 16 is provided with a push plate for pushing the locking tongue block 11 to move.

[0025] The rack 16 is meshed with the gear 18, which is mounted on the output shaft of the motor 19. The end of the output shaft of the motor 19 has a flat surface machined by a milling machine to facilitate connection with the gear 18. The motor 19 drives the gear 18 to rotate, thereby causing the rack 16 to slide.

[0026] The handle 3 is equipped with a light strip 4, a lock cylinder 5, a pressure plate 14, and a handle switch 15.

[0027] The light strip 4 is located on the outside of the handle 3 and is activated by the control box 8. Once the light strip 4 is lit, it can be seen by the user, reminding the user that the door lock device has been unlocked.

[0028] The inner end of the lock cylinder 5 is provided with a lock cylinder push rod 6. The lock cylinder 5 is used for the insertion of the key 2. When the key 2 is inserted into the lock cylinder 5, the lock is unlocked. When the lock cylinder 5 is pressed, the lock cylinder push rod 6 pushes the bolt lever 11, causing the bolt 23 to rotate and open the door lock.

[0029] The handle switch 15 is installed between the pressure plate 14 and the handle 3. The lower end of the pressure plate 14 is fixed to the inner side of the handle 3 by screws and is kept at a certain distance from the handle switch 15. When the handle 3 is pulled, the pressure plate 14 is squeezed. The pressure plate 14 undergoes elastic deformation after being subjected to pressure, thereby pressing the handle switch 15.

[0030] The handle switch 15 is a normally open switch. When the pressure plate 14 is pressed, the handle switch 15 is closed, the circuit is connected, and the motor 19 is powered on. The motor 19 drives the rack 16 to slide through the drive gear 18. The rack 16 pushes the latch block 11, causing the latch 23 to rotate and the door lock to open.

[0031] The control box 8 includes a control circuit and a relay 21; the control circuit is controlled by the controller 1 to switch on and off; the control circuit is connected in series with the input circuit of the relay 21, and the output circuit of the relay 21 is connected in series with the light strip 4; the control circuit is connected in series with the input circuits of the lock cylinder switch 9, the handle switch 15, and the relay 22.

[0032] The input circuit of relay 22 is controlled by control box 8, lock core switch 9, and handle switch 15 in series; the output circuit of relay 22 is connected in series with the output circuit of relay 121 and motor 19.

[0033] The controller 1 can be an NFC magnetic card or a superheterodyne remote control. The controller 1 is in a self-locking state; once activated, the control box 8 is powered on, and once activated again, the control box 8 is powered off.

[0034] The lock cylinder switch 9 is a normally open switch. When the door lock is closed, the lock cylinder switch 9 is closed. When the door lock is opened, the lock cylinder switch 9 is open, and the motor 19 stops working to prevent the motor 19 from stalling and burning out.

[0035] A sealing gasket 7 is fitted between the lock frame 13 and the handle 3 to prevent water from entering the room.

[0036] A protective shell 12 is installed on the side of the lock frame 13 away from the handle 3.

[0037] The specific working principle of this utility model is as follows: Remote unlocking: The controller 1 is used to start the circuit of the control box 8, the light strip 4 lights up, prompting the user that the door lock device is unlocked; then the handle 3 is pulled, and the handle switch 15 is pressed by the pressure plate 14, the circuit is connected, the motor 19 is powered on and works, the motor 19 drives the rack 16 to slide through the drive gear 18, the rack 16 pushes the bolt block 11 of the lock body 10 and makes the bolt 23 rotate, thus completing the door opening action; after the door lock is opened, the lock cylinder switch 9 is disconnected, the motor 19 is de-energized and stops working, and the rack 16 is pushed back to its original position by the return spring 17.

[0038] Unlocking with key: Insert key 2 into lock cylinder 5 to unlock. Press lock cylinder 5, and lock cylinder push rod 6 will push lock tongue block 11 to rotate lock tongue 23, thus completing the door opening action.

[0039] This utility model achieves compatibility between remote control and mechanical operation, and has functions such as remote control power-on indication and anti-accidental touch.

[0040] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. An electronically controlled door lock device for agricultural machinery, characterized in that: The lock includes a lock frame (13), on which a handle (3), lock body (10), motor (19), gear cover (20) and relay (22) are fixedly installed by bolts. A control box (8) and lock cylinder switch (9) are provided on the top of the lock body (10). The lock body (10) is provided with a latch block (11) and a latch (23). Pushing the latch block (11) will cause the latch (23) to rotate, thereby opening the door lock. When the lock body (10) is in the locked state, the latch (23) touches the lock cylinder switch (9), and the lock cylinder switch (9) is closed. When the lock body (10) is in the free state, the latch block (11) is in close contact with the push plate of the rack (16) and the lock cylinder push rod (6) of the lock cylinder (5).

2. The electronically controlled door lock device for agricultural machinery as described in claim 1, characterized in that: The rack (16) is slidably installed inside the gear housing (20), and the sliding stroke of the rack (16) is limited by the gear housing (20) and the lock frame (13); a return spring (17) is installed between the rack (16) and the gear housing (20), and a push plate is provided at the bottom of the rack (16) for pushing the lock tongue block (11) to move.

3. The electronically controlled door lock device for agricultural machinery as described in claim 2, characterized in that: The rack (16) meshes with the gear (18), which is mounted on the output shaft of the motor (19).

4. The electronically controlled door lock device for agricultural machinery as described in claim 1, characterized in that: The handle (3) is equipped with a light strip (4), a lock cylinder (5), a pressure plate (14) and a handle switch (15). Both the lock cylinder switch (9) and the handle switch (15) are normally open switches.

5. The electronically controlled door lock device for agricultural machinery as described in claim 4, characterized in that: The light strip (4) is located on the outside of the handle (3) and is activated by the control box (8).

6. The electronically controlled door lock device for agricultural machinery as described in claim 4, characterized in that: The inner end of the lock cylinder (5) is provided with a lock cylinder push rod (6), and the lock cylinder (5) is used for the insertion of the key (2).

7. The electronically controlled door lock device for agricultural machinery as described in claim 4, characterized in that: The handle switch (15) is installed between the pressure plate (14) and the handle (3). The lower end of the pressure plate (14) is fixed to the inside of the handle (3) by screws and is kept at a certain distance from the handle switch (15).

8. The electronically controlled door lock device for agricultural machinery as described in claim 1, characterized in that: The control box (8) includes a control circuit and a relay one (21); the control circuit is controlled by a controller (1), which is an NFC magnetic card or a superheterodyne remote control; the control circuit is connected in series with the input circuit of the relay one (21), and the output circuit of the relay one (21) is connected in series with the light strip (4); the control circuit is connected in series with the input circuits of the lock cylinder switch (9), the handle switch (15), and the relay two (22).

9. The electronically controlled door lock device for agricultural machinery as described in claim 8, characterized in that: The input circuit of the second relay (22) is controlled by the control box (8), the lock core switch (9), and the handle switch (15) in series; the output circuit of the second relay (22) is connected in series with the output circuit of the first relay (21) and the motor (19).

10. The electronically controlled door lock device for agricultural machinery as described in claim 1, characterized in that: A sealing gasket (7) is fitted between the lock frame (13) and the handle (3), and a protective shell (12) is installed on the side of the lock frame (13) away from the handle (3).

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