Door lock device for sliding door, sliding door and working machine

Abstract

The present invention provides a door lock device for a sliding door, a sliding door and a working machine. The door lock device for the sliding door includes a door handle, and the door handle is configured to be fixedly installed on the door body of the sliding door; an unlocking trigger, the unlocking trigger is slidably connected to the door handle, and the sliding direction of the unlocking trigger is the same as the opening direction of the sliding door; a door switch, the door switch is installed on the door handle, and the door switch is located on the sliding path of the unlocking trigger. The present invention realizes unlocking the door switch by sliding the unlocking trigger along the opening direction of the sliding door, and then opening the sliding door smoothly, simplifies the door opening operation, makes the opening of the sliding door easier and labor-saving. At the same time, it can effectively improve the service life of the door handle and ensure driving safety.

Description

Technical Field

[0001] The present invention relates to the technical field of sliding door locks, and particularly to a door lock device for a sliding door, a sliding door and a working machine. Background Art

[0002] Currently, on working machines, sliding doors are becoming more and more common. Since the opening direction of a sliding door is to push the door backward along the vehicle body direction after unlocking, which is different from traditional hinged doors, there are also different requirements for the unlocking method of the door lock. Currently, basically the traditional external handle unlocking method is still used on the market, resulting in poor human-computer comfort.

[0003] For a traditional car door connected by a hinge, when moving the external handle to unlock, the direction of the force exerted by a person when unlocking is the same as the moving direction of the door when it is opened, which is relatively labor-saving; after the sliding door is unlocked, the moving direction of the door after opening is backward along the vehicle body. After unlocking, it is necessary to continue to exert force backward for a period of time. At this time, if the door handle is still used to unlock, it is necessary to first pull out the door handle and then push it backward. Firstly, it is laborious, and secondly, in the long run, it is easy to cause the handle to become loose or even damaged, resulting in potential safety hazards. Summary of the Invention

[0004] The present invention provides a door lock device for a sliding door, a sliding door and a working machine, which is used to solve the defect that the unlocking direction of the door handle in the prior art is inconsistent with the moving direction of the door, resulting in easy damage of the door handle, and realizes that the unlocking direction is consistent with the opening and sliding direction of the sliding door, which is labor-saving and improves the service life.

[0005] The present invention provides a door lock device for a sliding door, including:

[0006] A door handle, which is configured to be fixedly installed on the door body of the sliding door;

[0007] An unlocking trigger, which is slidably connected to the door handle, and the sliding direction of the unlocking trigger is the same as the opening direction of the sliding door;

[0008] A door switch, which is installed on the door handle and is located on the sliding path of the unlocking trigger.

[0009] According to a door lock device for a sliding door provided by the present invention, the door switch includes a torsion spring, a return plate and a pin shaft. The torsion spring and the return plate are rotatably sleeved on the pin shaft. The pin shaft is installed in the cavity of the door handle. The first end of the torsion spring is located on the sliding path of the unlocking trigger, and the second end of the torsion spring is connected to the return plate.

[0010] A door lock device for a sliding door according to the present invention, wherein the door handle is provided with a sliding hole located on the sliding path of the unlocking trigger member, and the first end of the torsion spring is inserted into the sliding hole.

[0011] A door lock device for a sliding door according to the present invention, wherein the door switch further includes a locking tongue. The middle part of the return plate is sleeved on the pin shaft. The first end of the return plate is inserted into the sliding hole, and the second end of the return plate is connected to the locking tongue through a wire.

[0012] A door lock device for a sliding door according to the present invention, wherein the return plate is provided with a shaft hole. The axis of the shaft hole is parallel to the axis of the pin shaft. A limit pin is inserted into the shaft hole, and the second end of the torsion spring is connected to the limit pin.

[0013] A door lock device for a sliding door according to the present invention, wherein one side of the limit pin is provided with a card slot that is fixedly adapted to the second end of the torsion spring, and the other side of the limit pin is provided with a card table that is arranged opposite to the card slot. The card table is limit - adapted to the return plate.

[0014] A door lock device for a sliding door according to the present invention, wherein the unlocking trigger member is an unlocking sleeve that is slidably sleeved on the door handle;

[0015] The unlocking sleeve is provided with anti - slip lines or is sleeved with a rubber sleeve.

[0016] A door lock device for a sliding door according to the present invention, wherein a guiding sliding groove is provided on the inner side of the door handle, and the unlocking sleeve is provided with an assembly sliding groove that is installed and adapted to the guiding sliding groove.

[0017] The present invention also provides a sliding door, including a door body and the door lock device for a sliding door as described above. The door handle is fixedly installed on the door body.

[0018] The present invention also provides a working machine, including the door lock device for a sliding door as described above or the sliding door as described above.

[0019] The door lock device, sliding door and operating machinery provided by the present invention are provided with a door handle, an unlocking trigger and a door switch. The door handle is configured to be fixedly installed on the door body of the sliding door, the unlocking trigger is slidably connected to the door handle, and the sliding direction of the unlocking trigger is the same as the opening direction of the sliding door. The door switch is installed on the door handle, and the door switch is located on the sliding path of the unlocking trigger. The unlocking trigger is triggered by sliding the unlocking trigger along the opening direction of the sliding door to unlock the door switch, and the sliding door is opened accordingly, thereby simplifying the door opening action, making the sliding door easier and more labor-saving to open. At the same time, the service life of the door handle can be effectively improved to ensure driving safety.

[0020] Furthermore, in the sliding door provided by the present invention, since it is provided with the door lock device for the sliding door as described above, it also has the various advantages as described above.

[0021] Furthermore, in the working machine provided by the present invention, since it is provided with the door lock device for the sliding door as described above, it also has the various advantages as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of a door lock device for a sliding door provided by the present invention;

[0024] Figure 2 is a partial structural cross-sectional view of a door lock device for a sliding door provided by the present invention;

[0025] Figure 3 is a schematic longitudinal section diagram of an unlocking sleeve in a door lock device for a sliding door provided by the present invention;

[0026] Reference numerals:

[0027] 100: Door handle; 110: Fixing bolt; 200: Unlocking sleeve;

[0028] 210: assembly slide; 310: torsion spring; 320: return plate;

[0029] 330: pin; 340: limit pin; 400: door body. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions in the present invention in conjunction with the accompanying drawings in the present invention. Apparently, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without making creative efforts belong to the scope of protection of the present invention.

[0031] The following will describe Figures 1 to 3 a door lock device for a sliding door of the present invention, including:

[0032] a door handle 100, which is configured to be fixedly installed on the door body 400 of the sliding door;

[0033] an unlocking trigger, which is slidably connected to the door handle 100, and the sliding direction of the unlocking trigger is the same as the opening direction of the sliding door;

[0034] a door switch, which is installed on the door handle 100 and is located on the sliding path of the unlocking trigger. It can be understood that the door handle 100 is configured to be fixedly installed on the door body 400 of the sliding door and serves as the installation carrier for the unlocking trigger and the door switch. Specifically, the left and right ends of the door handle 100 are fixedly installed on the door body 400 through fixing bolts 110 to ensure the fixing strength and facilitate the assembly of the unlocking trigger and the door switch.

[0035] Among them, the unlocking trigger is slidably connected to the door handle 100, and the sliding direction of the unlocking trigger is the same as the opening direction of the sliding door. That is to say, the door handle 100 is horizontally arranged, the opening direction of the sliding door is from front to back, that is, along the direction from the left end to the right end of the door handle 100, and the unlocking trigger can slide along the direction from the left end to the right end of the door handle 100.

[0036] Among them, the door switch is installed on the door handle 100 to control the opening and locking of the door. The door switch is located on the sliding path of the unlocking trigger. That is to say, the trigger point of the door switch is set at the middle of the door handle 100 or at a position between the middle and the right end of the door handle 100.

[0037] Specifically, the unlocking trigger and the door switch are correspondingly assembled onto the door handle 100. The left and right ends of the door handle 100 are respectively fixed to the door body 400 through fixing bolts 110. Along the direction from the left end to the right end of the door handle 100, that is, the direction in which the sliding door opens, the unlocking trigger is pulled. The unlocking trigger slides. When the right end of the unlocking trigger contacts the trigger point of the door switch, the unlocking action of the door switch is triggered. Continuing to pull the unlocking trigger, at this time, the unlocking trigger no longer slides relative to the door handle 100, and the door handle 100 is stressed, and the sliding door slides open, making the unlocking force direction consistent with the opening sliding direction of the sliding door, achieving the effects of labor saving and convenience. At the same time, there is no need to pull the door handle 100, reducing the failure rate of the door handle 100 and increasing the service life of the door handle 100. Figure 1 The arrow direction in it is the sliding direction of the unlocking trigger.

[0038] According to a door lock device for a sliding door provided by the present invention, the unlocking trigger is an unlocking sleeve 200, and the unlocking sleeve 200 is slidably sleeved on the door handle 100; the unlocking sleeve 200 is provided with anti-slip lines or the unlocking sleeve 200 is provided with a rubber sleeve. It can be understood that the unlocking trigger is set as the unlocking sleeve 200, and the unlocking sleeve 200 is sleeved on the door handle 100 and can slide along the direction from the left end to the right end of the door handle 100, and then trigger the door switch during the sliding process to realize the unlocking operation of the sliding door.

[0039] It is worth noting that in order to increase the friction between the human hand and the unlocking sleeve 200 during operation, anti-slip lines are provided on the outer side wall of the unlocking sleeve 200, or a rubber sleeve is sleeved on the unlocking sleeve 200 to improve comfort. Or, finger grooves adapted to human hand holding can also be provided on the unlocking sleeve 200 to facilitate force application, prevent slipping and abrasion, have good man-machine performance, and have a long service life.

[0040] According to a door lock device for a sliding door provided by the present invention, a guiding chute is provided inside the door handle 100, and the unlocking sleeve 200 is provided with an assembly chute 210 adapted to be installed in the guiding chute. It can be understood that a guiding chute is provided inside the door handle 100, and the guiding chute is arranged along the length direction of the handle. An assembly chute 210 is provided inside the installation of the unlocking sleeve 200, and the assembly chute 210 is installed in the guiding chute and can slide in the guiding chute. That is to say, by providing the assembly chute 210, the unlocking sleeve 200 is tightly assembled with the guiding chute of the door handle 100, preventing the unlocking sleeve 200 from colliding with the door handle 100 during driving, and at the same time, ensuring the free sliding of the unlocking sleeve 200 and improving the sliding stability.

[0041] A door lock device for a sliding door according to the present invention. The door switch includes a torsion spring 310, a return plate 320, and a pin shaft 330. The torsion spring 310 and the return plate 320 are rotatably sleeved on the pin shaft 330. The pin shaft 330 is installed in the cavity of the door handle 100. The first end of the torsion spring 310 is arranged on the sliding path of the unlocking trigger member, and the second end of the torsion spring 310 is connected to the return plate 320. It can be understood that the door handle 100 is provided with a cavity for accommodating the door switch, that is to say, the door switch is installed in the cavity of the door handle 100. Specifically, the door switch includes a torsion spring 310, a return plate 320, and a pin shaft 330. The pin shaft 330 is horizontally installed, and the axial direction of the pin shaft 330 is perpendicular to the length direction of the door handle 100. The two ends of the pin shaft 330 are respectively fixedly connected to the corresponding inner side walls of the door handle 100. The return plate 320 and the torsion spring 310 are sequentially sleeved on the pin shaft 330, and the return plate 320 and the torsion spring 310 can rotate freely around the pin shaft 330 respectively. The first end of the torsion spring 310 is arranged on the sliding path of the unlocking trigger member, and the second end of the torsion spring 310 is connected to the return plate 320. That is to say, during the sliding process of the unlocking sleeve 200, the right end thereof contacts the first end of the torsion spring 310 and pushes the first end of the torsion spring 310 to move. The torsion spring 310 generates a torque, and the second end of the torsion spring 310 drives the return plate 320 to rotate to complete unlocking. When the sliding door is opened, the unlocking sleeve 200 is released, and the first end of the torsion spring 310 pushes the unlocking sleeve 200 to reset for the next unlocking.

[0042] A door lock device for a sliding door according to the present invention. The door handle 100 is provided with a sliding hole, and the sliding hole is located on the sliding path of the unlocking trigger member. The first end of the torsion spring 310 passes through the sliding hole. It can be understood that a sliding hole is provided on the upper side of the door handle 100. The sliding hole is arranged along the length direction of the door handle 100, and the sliding hole is arranged on the sliding path of the unlocking trigger member. The first end of the torsion spring 310 passes through the sliding hole and is exposed on the upper side of the door handle 100. That is to say, during the sliding process of the unlocking sleeve 200 along the length direction of the door handle 100, the right end of the unlocking sleeve 200 contacts the first end of the torsion spring 310 exposed on the upper side of the door handle 100, and the first end of the torsion spring 310 moves along the length direction of the door handle 100 in the sliding hole to trigger the unlocking of the door switch.

[0043] A door lock device for a sliding door provided according to the present invention. The door switch further includes a locking tongue. The middle part of the return plate 320 is sleeved on the pin shaft 330. The first end of the return plate 320 passes through the sliding hole. The second end of the return plate 320 is connected to the locking tongue through a pull wire. It can be understood that the return plate 320 is in a shape similar to an L. A through hole is provided in the middle of the return plate 320, and the pin shaft 330 passes through the through hole, enabling the return plate 320 to freely rotate around the pin shaft 330. The first end of the return plate 320, that is, the upper end, passes through the through hole and is exposed above the door handle 100, serving as the triggering point of the door switch. The second end of the return plate 320, that is, the lower end, is connected to the locking tongue through a pull wire, enabling the second end of the return plate 320 to rotate and driving the locking tongue to move through the pull rope to complete unlocking.

[0044] It is worth noting that the first end of the return plate 320 and the first end of the torsion spring 310 together serve as the unlocking trigger position, improving the unlocking efficiency and sensitivity and saving effort.

[0045] In one embodiment, a connection hole is provided at the second end of the return plate 320. One end of the pull rope is fixedly connected to the connection hole, and the other end of the pull rope is fixedly connected to the locking tongue.

[0046] A door lock device for a sliding door provided according to the present invention. The return plate 320 is provided with a shaft hole. The axis of the shaft hole is parallel to the axis of the pin shaft 330. A limit pin 340 is inserted into the shaft hole. The second end of the torsion spring 310 is connected to the limit pin 340. It can be understood that a shaft hole is provided between the middle part and the second end of the return plate 320. The axis of the shaft hole is parallel to the axis of the pin shaft 330. The limit pin 340 is inserted into the shaft hole, and the limit pin 340 is parallel to the pin shaft 330. The second end of the torsion spring 310 is connected to the limit pin 340, realizing the fixed connection between the second end of the torsion spring 310 and the second end of the return plate 320.

[0047] A door lock device for a sliding door provided according to the present invention. A card slot adapted to be clamped with the second end of the torsion spring 310 is provided on one side of the limit pin 340. A clamping platform is provided on the other side of the limit pin 340, which is arranged opposite to the card slot. The clamping platform is adapted to limit the return plate 320. It can be understood that the first end of the limit pin 340 is adapted to limit the inner side wall of the door handle 100. The second end of the limit pin 340 passes through the shaft hole and is located beside the return plate 320. A card slot is provided on one side of the second end of the limit pin 340. The second end of the torsion spring 310 is arranged in the card slot and is fixed through the clamping action of the card slot on the return plate 320. A clamping platform is provided on the other side of the second end of the torsion spring 310. The clamping platform and the card slot are arranged opposite to each other. At the same time, the clamping platform is adapted to limit the return plate 320 to prevent the limit pin 340 from disengaging from the shaft hole and ensuring the stable connection between the second end of the torsion spring 310 and the return plate 320.

[0048] The working process of the door lock device for a sliding door provided by the present invention is as follows:

[0049] Unlocking: Hold the unlocking sleeve 200 and apply force along the opening direction of the sliding door (i.e., backward), pull the unlocking sleeve 200 to slide on the door handle 100. The right end of the unlocking sleeve 200 contacts the first end of the torsion spring 310 of the door switch and the first end of the return plate 320, and triggers the torsion spring 310 to generate torque. At the same time, the second end of the torsion spring 310 acts on the second end of the return plate 320. Under the action of the unlocking sleeve 200, the return plate 320 rotates, and then the pull rope drives the lock tongue to move, realizing the unlocking of the sliding door;

[0050] Opening the door: Continue to pull the unlocking sleeve 200 backward with force. At this time, there is no relative sliding between the unlocking sleeve 200 and the door handle 100, and the generated pulling force is transmitted to the door body 400, and the sliding door slides backward, thus realizing the opening of the sliding door;

[0051] Resetting: When the sliding door is opened, release the unlocking sleeve 200. The first end of the torsion spring 310 generates a forward thrust on the unlocking sleeve 200 under the action of the torque, so that the unlocking sleeve 200 resets to the original state. Moreover, when the sliding door is closed, there is no need to slide the unlocking sleeve 200.

[0052] The present invention also provides a sliding door, including a door body 400 and the sliding door locking device as described above, and the door handle 100 is fixedly installed on the door body 400.

[0053] The present invention also provides a working machine, including the sliding door locking device as described above or the sliding door as described above.

[0054] The sliding door locking device, the sliding door and the working machine provided by the present invention, by setting a door handle, an unlocking trigger and a door switch, the door handle is set to be fixedly installed on the door body of the sliding door, the unlocking trigger is slidably connected with the door handle, and the sliding direction of the unlocking trigger is the same as the opening direction of the sliding door. The door switch is installed on the door handle and is located on the sliding path of the unlocking trigger, realizing unlocking by sliding the unlocking trigger along the opening direction of the sliding door to trigger the door switch, and then opening the sliding door smoothly, simplifying the opening action, making the opening of the sliding door more convenient and labor-saving. At the same time, it can effectively improve the service life of the door handle and ensure driving safety.

[0055] Further, in the sliding door provided by the present invention, due to having the sliding door locking device as described above, it also has the above-mentioned various advantages.

[0056] Further, in the working machine provided by the present invention, due to having the sliding door locking device as described above, it also has the above-mentioned various advantages.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A door lock device for a sliding door, characterized in that, Comprising: A door handle, which is configured to be fixedly installed on the door body of a sliding door; An unlocking trigger, which is slidably connected to the door handle, and the sliding direction of the unlocking trigger is the same as the opening direction of the sliding door; A door switch, which is installed on the door handle and is located on the sliding path of the unlocking trigger; Wherein, when the unlocking trigger slides to the right and contacts the trigger point of the door switch, the unlocking action of the door switch is triggered.

2. The door lock device for a sliding door according to claim 1, characterized in that, The door switch includes a torsion spring, a return plate and a pin shaft. The torsion spring and the return plate are rotatably sleeved on the pin shaft. The pin shaft is installed in the cavity of the door handle. The first end of the torsion spring is located on the sliding path of the unlocking trigger, and the second end of the torsion spring is connected to the return plate.

3. The door lock device for a sliding door according to claim 2, characterized in that, The door handle is provided with a sliding hole, which is located on the sliding path of the unlocking trigger, and the first end of the torsion spring passes through the sliding hole.

4. The door lock device for a sliding door according to claim 3, characterized in that, The door switch further includes a locking tongue. The middle part of the return plate is sleeved on the pin shaft. The first end of the return plate passes through the sliding hole, and the second end of the return plate is connected to the locking tongue through a wire.

5. The door lock device for a sliding door according to claim 2, characterized in that, The return plate is provided with a shaft hole, the axis of the shaft hole is parallel to the axis of the pin shaft, a limit pin is inserted into the shaft hole, and the second end of the torsion spring is connected to the limit pin.

6. The door lock device for a sliding door according to claim 5, characterized in that, One side of the limit pin is provided with a card slot that is fixedly adapted to the second end of the torsion spring, and the other side of the limit pin is provided with a clamping platform that is arranged opposite to the card slot, and the clamping platform is limited and adapted to the return plate.

7. The door lock device for a sliding door according to claim 1, characterized in that, The unlocking trigger is an unlocking sleeve, and the unlocking sleeve is slidably sleeved on the door handle; The unlocking sleeve is provided with anti-slip lines or the unlocking sleeve is sleeved with a rubber sleeve.

8. The door lock device for a sliding door according to claim 7, wherein, The inner side of the door handle is provided with a guiding chute, and the unlocking sleeve is provided with an assembly chute that is installed and adapted to the guiding chute.

9. A sliding door, characterized in that, Comprising a door body and a sliding door lock device for a sliding door according to any one of claims 1 to 8, wherein the door handle is fixedly installed on the door body.

10. An earthmoving machine, characterized in that, Comprising a sliding door lock device for a sliding door according to any one of claims 1 to 8 or a sliding door according to claim 9.

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