A door lock device and an agricultural machine

Abstract

The utility model provides a door lock device and agricultural machinery. Including lock bar, lock tongue, drive unit, door handle, first transmission component, second transmission component, signal receiving device and controller, the signal connection of controller and signal receiving device, drive unit, when signal receiving device receives the lock signal, the controller controls drive unit to second transmission component carries out corresponding operation. The utility model discloses a controller control drive unit to second transmission component carries out operation, removes the block of transmission route between door handle, first transmission component and lock tongue, and the transmission route is simpler, and the stability is higher, and drive unit only needs to drive second transmission component movement, and the required energy consumption is lower, so that the door lock device has longer standby time, solves the power shortage pain point of the periodic use equipment of agricultural machinery, retains the full -functional electronic lock experience simultaneously, and has reliability and economy.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery, and in particular to a door lock device and agricultural machinery. Background Technology

[0002] Currently, most high-horsepower tractors in China use mechanical door locks. However, with the development of the automotive industry and increasing demands for intelligent systems, the application of electronically controlled door locks in agricultural machinery is an inevitable trend. However, agricultural machinery is used cyclically, and during off-seasons, door locks remain in standby mode for extended periods, easily leading to power depletion and rendering electronically controlled door locks unusable. Therefore, it is necessary to provide a door lock device and agricultural machinery that overcomes these shortcomings. Utility Model Content

[0003] The purpose of this utility model is to provide a door lock device and agricultural machinery.

[0004] According to one aspect of this utility model, a door lock device for agricultural machinery is provided, comprising: a lock rod disposed on a door frame; a latch disposed on a vehicle door and capable of switching between a locked state and an unlocked state of the lock rod; a drive unit disposed on the vehicle door; a door handle disposed on the outside of the vehicle door and capable of rotating relative to the vehicle door; a first transmission assembly connecting the door handle and the latch, wherein the door handle drives the latch via the first transmission assembly to perform an unlocking action on the lock rod; a second transmission assembly, wherein the drive unit via the second transmission assembly can block or release the transmission path between the door handle, the first transmission assembly, and the latch; a signal receiving device capable of receiving a user's unlocking signal; and a controller connected to the signal receiving device and the drive unit, wherein when the signal receiving device receives an unlocking signal, the controller controls the drive unit to operate the second transmission assembly to release the transmission path between the door handle, the first transmission assembly, and the latch.

[0005] Preferably, the door lock device further includes a mechanical lock cylinder and a fourth transmission component connected to the mechanical lock cylinder, the fourth transmission component being capable of blocking or releasing the transmission path of the door handle, the first transmission component and the bolt.

[0006] Preferably, the door handle is provided with a limiting groove, and the limiting groove is provided with a limiting part. The limiting part is controlled by the second transmission component and the fourth transmission component. When the limiting part is embedded in the limiting groove, it blocks the transmission path of the door handle, the first transmission component and the lock tongue.

[0007] Preferably, the limiting groove is provided with a sliding groove in the vertical direction, the limiting part is slidably disposed on the sliding groove, a second elastic element is provided between the limiting part and the top of the sliding groove, and a hole is provided in the limiting part in the horizontal direction; the fourth transmission assembly includes a first gear connected to the output end of the mechanical lock cylinder and an eccentric column disposed on the first gear and inserted into the hole; the mechanical lock cylinder drives the limiting part to move up and down via the first gear.

[0008] Preferably, the drive unit is a drive motor, and the second transmission component includes a worm that rotates synchronously with the output end of the drive motor, and a gear set meshing with the worm and the first gear; the gear set is a reduction gear set composed of multiple meshing double gears.

[0009] Preferably, the driving unit is a solenoid valve, and the second transmission component is a first connecting rod vertically arranged on the limiting groove. The lower part of the first connecting rod forms a limiting part. The first connecting rod is controlled by the solenoid valve, and the solenoid valve drives the limiting part to move up and down via the first connecting rod.

[0010] Preferably, the fourth transmission assembly includes a cam portion connected to the mechanical lock cylinder and a second connecting rod fixedly connected to the first connecting rod and extending above the cam portion. The mechanical lock cylinder drives the limiting portion to move up and down via the cam portion, the second connecting rod and the first connecting rod.

[0011] Preferably, the signal receiving device includes an NFC sensing device, which is located on the outside of the vehicle door.

[0012] Preferably, the door lock device further includes an operating lever, and a third transmission component is provided between the operating lever and the first transmission component. The operating lever drives the bolt to perform a release action on the lock rod via the third transmission component and the first transmission component.

[0013] According to another aspect of the present invention, an agricultural machine is provided, including the aforementioned door lock device.

[0014] Compared with the prior art, the door lock device and agricultural machinery provided by this utility model have the following beneficial effects: This utility model controls the drive unit to operate the second transmission component through the controller, thereby releasing the transmission route between the door handle, the first transmission component and the lock tongue. The transmission route is simpler and more stable. The drive unit only needs to drive the second transmission component, which requires less energy. This allows the door lock device to have a longer standby time, solving the problem of power depletion in agricultural machinery during periodic use. At the same time, it retains the full-function electronic lock experience, combining reliability and economy. Attached Figure Description

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0016] Figure 1 This is a schematic diagram of the structure of the door lock device and the car door of this utility model;

[0017] Figure 2 This is a schematic diagram of the external structure of the door lock device in this utility model;

[0018] Figure 3 This is a schematic diagram of the inner plate side structure of the door lock device in Embodiment 1 of this utility model;

[0019] Figure 4 This is a schematic diagram of the outer panel structure of the door lock device in Embodiment 1 of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the first transmission component, the second transmission component, the third transmission component, and the fourth transmission component in Embodiment 1 of this utility model;

[0021] Figure 6 This is one of the structural schematic diagrams of the first transmission component in Embodiment 1 of this utility model;

[0022] Figure 7 This is a second schematic diagram of the structure of the first transmission component in Embodiment 1 of this utility model;

[0023] Figure 8 This is a schematic diagram of the structure of the third transmission component in Embodiment 1 of this utility model;

[0024] Figure 9 This is one of the structural schematic diagrams of the second transmission component in Embodiment 1 of this utility model (i.e., attached). Figure 4 (A magnified view of a portion of region A in the middle);

[0025] Figure 10 This is the second schematic diagram of the structure of the second transmission component in Embodiment 1 of this utility model (i.e., attached). Figure 5 (A magnified view of a portion of region B in the middle);

[0026] Figure 11 This is a schematic diagram of the internal structure of the door lock device in Embodiment 2 of this utility model;

[0027] Figure 12 This is a schematic diagram of the structure of the first transmission component, the second transmission component, the third transmission component, and the fourth transmission component in Embodiment 2 of this utility model;

[0028] Figure 13 This is a schematic diagram of the agricultural machinery in this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100. Car door; 200. Door frame; 300. Door lock device;

[0031] 1. Locking bar;

[0032] 21. Outer panel; 22. Inner panel; 211. Inner lock bracket; 211a. First mounting surface; 211b. Second mounting surface;

[0033] 3. Locking tongue; 31. First support shaft; 32. First ratchet portion; 33. First groove portion; 34. First protrusion portion;

[0034] 41a. Drive motor; 41b. Solenoid valve; 42. Operating lever; 43. Mechanical lock cylinder;

[0035] 51. First transmission assembly; 511. Second support shaft; 511a. First mounting part; 512. First pull rod; 512a. Fitting part; 512b. Second slot part; 513. Third support shaft; 514. Second pull rod; 514a. Second protrusion; 514b. Third protrusion; 514c. Second ratchet part; 515. First elastic element;

[0036] 52. Second transmission assembly; 521a. Worm gear; 522a. Gear set; 523a. First gear; 524a. Eccentric column; 525a. Slide groove; 526a. Second elastic element; 521b. First connecting rod;

[0037] 53. Third transmission assembly; 531. Lever; 531a. Fourth ratchet part; 532. Limiting element; 533. Limiting post; 534. Transition wheel;

[0038] 54. Fourth transmission assembly; 541b. Cam section; 542b. Second connecting rod;

[0039] 55. Limiting part; 551. Hole;

[0040] 6. Signal receiving device; 61. NFC sensing device;

[0041] 7. Door handle; 71. Lower end of door handle; 72. Upper end of door handle; 73. Limiting groove; 74. Third groove opening. Detailed Implementation

[0042] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0044] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0045] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections 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 utility model based on the specific circumstances.

[0046] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0047] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0048] Example 1

[0049] See Figures 1 to 12 This embodiment discloses a door lock device 300, which is mainly used in the field of agricultural machinery. This embodiment takes a tractor as an example for illustration. The door lock device 300 includes: a fixing component, a locking rod 1, a locking tongue 3, a drive unit, a door handle 7, a first transmission component 51, a second transmission component 52, a third transmission component 53, a fourth transmission component 54, a signal receiving device 6, and a controller.

[0050] See appendix Figures 1 to 313. The fixing component is provided on the door 100. The fixing component includes an outer panel 21 provided on the outside of the door 100, an inner panel 22 provided on the inside of the door 100, and an inner lock bracket 211 provided on the inner panel 22. The inner lock bracket 211 includes a first mounting surface 211a and a second mounting surface 211b. The first mounting surface 211a is parallel to the inner panel 22, and the second mounting surface 211b is perpendicularly connected to the first mounting surface 211a and the inner panel 22.

[0051] See appendix Figure 1 The locking rod 1 is mounted on the door frame 200, and the locking tongue 3 is mounted on the inner lock bracket 211. The locking tongue 3 has a first groove 33, which allows it to rotate relative to the locking rod 1, thus switching between the locked and unlocked states of the locking rod 1. Specifically, the lower part of the locking tongue 3 is rotatably mounted on the first mounting surface 211a via a first support shaft 31, and the upper part of the locking tongue 3 is constructed to form a first groove 33 and a first ratchet 32. When the first groove 33 is engaged with the locking rod 1, it locks the locking rod 1; when the first groove 33 is disengaged from the locking rod 1, it unlocks the locking rod 1.

[0052] See appendix Figure 2 , 3 The door handle 7 is mounted on the outer panel 21. The lower end 71 of the door handle is rotatably connected to the outer panel 21, and the upper end 72 of the door handle extends through the outer panel 21 into the inner panel 22 and can move horizontally, thus enabling the door handle 7 to rotate relative to the outer panel 21. The first transmission assembly 51 connects the door handle 7 and the latch 3. The door handle 7 drives the latch 3 to perform a release action on the lock rod 1 via the first transmission assembly 51.

[0053] See appendix Figures 5 to 7 The first transmission assembly 51 includes a first pull rod 512 and a second pull rod 514. The first pull rod 512 is rotatably mounted on the second mounting surface 211b via a second support shaft 511. The first pull rod 512 rotates integrally with the second support shaft 511. The first pull rod 512 extends along the second support shaft 511 toward the first mounting surface 211a. The first pull rod 512 is configured to form a fitting portion 512a in the area protruding from the second mounting surface 211b. A second slot portion 512b is configured below the fitting portion 512a. The second pull rod 514 is rotatably mounted on the second mounting surface 211b via a third support shaft 513. The second pull rod 514 has a second protrusion 514a on the side near the second mounting surface 211b. The second protrusion 514a is located on the rotation trajectory of the second slot. The second pull rod 514 also has a second ratchet portion 514c. The second ratchet portion 514c is disposed opposite to and connected to the first ratchet portion 32.

[0054] When the first fitting part 512a or the second support shaft 511 rotates, the first pull rod 512 drives the second pull rod 514 to rotate through the second slot part 512b and the second protrusion part 514a. The second pull rod 514 drives the locking tongue 3 to rotate through the second ratchet part 514c and the first ratchet part 32, thereby realizing the release action of the locking rod 1.

[0055] The latch 3 has a first protrusion 34 on the side near the second mounting surface 211b, and the second pull rod 514 has a third protrusion 514b on the side near the second mounting surface 211b. A first elastic element 515 is provided between the first protrusion 34 and the third protrusion 514b. When the second pull rod 514 drives the latch 3 to switch from the locked state to the unlocked state, the first elastic element 515 changes from the natural state to the stored state. When the first transmission assembly 51 removes the external force, the first elastic element 515 drives the second pull rod 514 and the first pull rod 512 to reset.

[0056] The upper end 72 of the door handle is provided with a third groove 74 at the lower edge of the area of ​​the inner plate 22. The second support shaft 511 is provided with a first mounting part 511a. The first mounting part 511a is fitted into the third groove 74. The first mounting part 511a rotates integrally with the second support shaft 511. During the rotation, the door handle 7 will interfere with the first mounting part 511a. The door handle 7 drives the first transmission component 51 to rotate, thereby achieving the desired result.

[0057] See appendix Figure 4 The drive unit is mounted on the outer plate 21, and the second transmission assembly 52 is mounted on the outer plate 21. The drive unit, via the second transmission assembly 52, can block or release the transmission path of the door handle 7, the first transmission assembly 51, and the bolt 3. Similarly, the mechanical lock cylinder 43 and the fourth transmission assembly 54 connected to the mechanical lock cylinder 43 can block or release the transmission path of the door handle 7, the first transmission assembly 51, and the bolt 3.

[0058] See appendix Figure 4 , 5 The door handle 7 is provided with a limiting groove 73, and the limiting groove 73 is provided with a limiting part 55. The limiting part 55 is controlled by the second transmission component 52 and the fourth transmission component 54. When the limiting part 55 is embedded in the limiting groove 73, it blocks the transmission route of the door handle 7, the first transmission component 51 and the lock tongue 3.

[0059] An installation cavity is provided on the outer plate 21. The drive unit, the second transmission assembly 52 and the fourth transmission assembly 54 are located in the installation cavity. A sliding groove 525a is provided in the installation cavity. The sliding groove 525a is located in the vertical direction of the limiting groove 73. The limiting part 55 is slidably disposed on the sliding groove 525a and passes through the installation cavity into the limiting groove 73. A second elastic member 526a is provided between the limiting part 55 and the top of the sliding groove 525a, so that the limiting part 55 is kept in the state of being fitted into the limiting groove 73.

[0060] See appendix Figure 9 , 10 The fourth transmission component 54 includes a first gear 523a connected to the output end of the mechanical lock cylinder 43 and an eccentric column 524a eccentrically mounted on the first gear 523a. A hole 551 is provided in the horizontal direction of the limiting part 55. The eccentric column 524a is inserted into the hole 551. The limiting part 55 is moved up and down by the mechanical lock cylinder 43 via the first gear 523a, blocking or releasing the transmission route of the door handle 7, the first transmission component 51 and the lock tongue 3.

[0061] The drive unit is a drive motor 41a. The second transmission assembly 52 includes a worm gear 521a, a first gear 523a, and a gear set 522a meshing with the worm gear 521a and the first gear 523a, which rotate synchronously with the output end of the drive motor 41a. The gear set 522a is a reduction gear set 522a composed of multiple meshing double gears. The drive motor 41a drives the limiting part 55 to move up and down via the worm gear 521a, the gear set 522a, and the first gear 523a, blocking or releasing the transmission path of the door handle 7, the first transmission assembly 51, and the latch 3.

[0062] The signal receiving device 6 is located on the door 100 and can receive the user's unlocking signal. The signal receiving device 6 can be a contact signal receiving device 6 located on the outer panel 21 or a wireless signal receiving device 6 located on the inner panel 22. The contact signal receiving device 6 can be an NFC sensing device 61, which is located on the outside of the door 100. The wireless signal receiving device 6 can be a Bluetooth receiver, a Wi-Fi receiver, or a 4G / 5G receiver.

[0063] See appendix Figure 8The third transmission assembly 53 includes a lever 531, a limiting member 532, a limiting post 533, and a transition wheel 534. The middle part of the lever 531 is rotatably mounted on the second mounting surface 211b. One end of the lever 531 protrudes from the second mounting surface 211b to form an operating lever 42. The other end of the lever 531 forms a fourth ratchet portion 531a. The fourth ratchet portion 531a is opposite to and connected to the transition wheel 534. The transition wheel 534 is rotatably connected to the first assembly. The limiting member 532 is connected to the operating lever 42 and rotates synchronously. The limiting post 533 is located on the movement trajectory of the limiting member 532.

[0064] The user moves the control lever from inside the cab, which in turn drives the transition wheel 534 to rotate via the fourth ratchet 531a, thereby moving the first transmission assembly 51 and releasing the locking bolt 3 from the locking lever 1. The limiting member 532 restricts excessive movement of the control lever 42, providing protection.

[0065] Example 2

[0066] Based on Embodiment 1, this embodiment optimizes the design of the drive unit, the second transmission component 52, the third transmission component 53, and the corresponding structures to improve the transmission stability of the door lock device 300. Other structures are the same as in Embodiment 1.

[0067] See appendix Figure 11 , 12 The driving unit is a solenoid valve 41b, which is located on the inner plate 22. The second transmission assembly 52 is a first connecting rod 521b vertically mounted on the limiting groove 73. The first connecting rod 521b passes through the solenoid valve 41b and is controlled by the solenoid valve 41b. The lower part of the first connecting rod 521b forms a limiting part 55. The solenoid valve 41b has an electromagnet structure and an elastic structure inside. When the electromagnet structure is energized, it can drive the first connecting rod 521b to move downward and automatically reset through the elastic structure. The first connecting rod 521b drives the limiting part 55 to move up and down, blocking or releasing the transmission route of the door handle 7, the first transmission assembly 51, and the lock tongue 3.

[0068] The fourth transmission assembly 54 includes a cam portion 541b connected to the mechanical lock cylinder 43 and a second connecting rod 542b fixedly connected to the first connecting rod 521b and extending above the cam. The cam portion 541b includes a crank portion. When the cam portion 541b rotates with the mechanical lock cylinder 43, its crank portion pushes the second connecting rod 542b to move upward, which in turn drives the limiting portion 55 to move up and down via the first connecting rod 521b, blocking or releasing the transmission path of the door handle 7, the first transmission assembly 51 and the lock tongue 3.

[0069] For those skilled in the art, there are various configurations for the structure of the second transmission component 52. This application provides two exemplary structures for the structure of the second transmission component 52. It is understood that similar structures capable of blocking or releasing the transmission route between the door handle 7, the first transmission component 52, and the latch 52 are all within the protection scope of this application.

[0070] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations falling within the scope of the appended claims and their equivalents.

Claims

1. A door lock device, characterized in that, include: A locking rod, which is mounted on the door frame; A locking tongue, which is located on the door and can switch between the locking and unlocking states of the locking rod; A drive unit, wherein the drive unit is mounted on the vehicle door; A door handle, wherein the door handle is located on the outside of the vehicle door and is rotatable relative to the vehicle door; A first transmission assembly is connected to the door handle and the latch, and the door handle drives the latch to perform a release action on the lock rod via the first transmission assembly; The second transmission component allows the drive unit to block or release the transmission route between the door handle, the first transmission component, and the bolt via the second transmission component. A signal receiving device, which is capable of receiving the user's unlocking signal; The controller is connected to the signal receiving device and the drive unit. When the signal receiving device receives an unlocking signal, the controller controls the drive unit to operate the second transmission component to release the blockage of the transmission route between the door handle, the first transmission component and the lock tongue.

2. The door lock device as described in claim 1, characterized in that, The door lock device also includes a mechanical lock cylinder and a fourth transmission component connected to the mechanical lock cylinder. The fourth transmission component is capable of blocking or releasing the transmission path of the door handle, the first transmission component, and the bolt.

3. The door lock device as described in claim 2, characterized in that, The door handle is provided with a limiting groove, and the limiting groove is provided with a limiting part. The limiting part is controlled by the second transmission component and the fourth transmission component. When the limiting part is embedded in the limiting groove, it blocks the transmission path of the door handle, the first transmission component and the lock tongue.

4. The door lock device as described in claim 3, characterized in that, The limiting groove is provided with a sliding groove in the vertical direction, the limiting part is slidably disposed on the sliding groove, a second elastic element is provided between the limiting part and the top of the sliding groove, and a hole is provided in the limiting part in the horizontal direction; the fourth transmission assembly includes a first gear connected to the output end of the mechanical lock core and an eccentric column disposed on the first gear and inserted into the hole, the mechanical lock core drives the limiting part to move up and down through the first gear.

5. The door lock device as described in claim 4, characterized in that, The drive unit is a drive motor, and the second transmission component includes a worm that rotates synchronously with the output end of the drive motor, and a gear set that meshes with the worm and the first gear; the gear set is a reduction gear set composed of multiple meshing double gears.

6. The door lock device as described in claim 3, characterized in that, The driving unit is a solenoid valve, and the second transmission component is a first connecting rod vertically arranged on the limiting groove. The lower part of the first connecting rod forms a limiting part. The first connecting rod is controlled by the solenoid valve, and the solenoid valve drives the limiting part to move up and down via the first connecting rod.

7. The door lock device as described in claim 6, characterized in that, The fourth transmission component includes a cam portion connected to the mechanical lock cylinder and a second connecting rod fixedly connected to the first connecting rod and extending above the cam portion. The mechanical lock cylinder drives the limiting portion to move up and down via the cam portion, the second connecting rod and the first connecting rod.

8. The door lock device as described in claim 1, characterized in that, The signal receiving device includes an NFC sensing device, which is located on the outside of the vehicle door.

9. The door lock device as claimed in claim 1, characterized in that, The door lock device also includes an operating lever, and a third transmission component is provided between the operating lever and the first transmission component. The operating lever drives the lock tongue to perform a release action on the lock rod via the third transmission component and the first transmission component.

10. An agricultural machine, characterized in that, Includes the door lock device as described in any one of claims 1 to 9.

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