A hand-held keyless entry device

Abstract

This utility model belongs to the technical field of latching devices, and specifically relates to a hand-held unlocking device. It includes an inner fixed block and a latch. The inner fixed block is used to connect to a crossbeam or bracket. The middle part of the latch is rotatably connected to the inner fixed block. One end of the latch is connected to a wire, and the other end of the wire is connected to a door lock slide. The door lock slide is used to limit the bolt. By utilizing the rotatable connection of the middle part of the latch to the inner fixed block, moving the lower end of the latch can drive the upper end of the latch to move. The two ends of the wire are respectively connected to the upper end of the latch and the door lock slide, so that the latch pulls the door lock slide through the wire, causing the door lock slide to drive the bolt to unlock, thus opening the door. This is more convenient than having the worker manually open the door by moving the door lock slide; directly moving the latch connected to the crossbeam or bracket via the inner fixed block is much easier.

Description

Technical Field

[0001] This utility model belongs to the technical field of locking devices, and specifically relates to a hand-held unlocking device. Background Technology

[0002] A loader is an earthmoving machine that uses a bucket to scoop materials for cyclical operations. It is mainly used for loading relatively soft soil and loose materials, and can also be used for surface stripping of soft soil, ground leveling, and site clearing. By changing different auxiliary working devices, it can also perform crushing, bulldozing, and lifting operations.

[0003] However, when workers need to exit the loader's cab, they must pull the inner unlocking lever to open the door. This inner unlocking lever is often located far from the worker's position or in an inconvenient location. This can easily obstruct the worker's exit and, in severe cases, even cause accidents and pose safety hazards. Therefore, it is necessary to design a hand-held unlocking device to solve these problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a hand-held unlocking device to solve the issues raised in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hand-held unlocking device, comprising:

[0006] An inner solid block, which is used to connect to a crossbeam or bracket;

[0007] The latch is rotatably connected to the inner block at its center. The upper end of the latch is used to connect one end of a wire, and the other end of the wire is used to connect to the door lock slide. The door lock slide is used to limit the latch tongue.

[0008] Furthermore, the upper end of the inner solid block has a through hole through which the upper end of the inner solid block passes, and the upper end of the buckle has a hanging hole, the thread being used to connect to the hanging hole.

[0009] Furthermore, a pull-wire block is provided at the upper end of the inner solid block. The pull-wire block is located to the right of the through hole. Both the left and right ends of the pull-wire block are provided with thread holes for the thread to pass through.

[0010] Furthermore, the hand-held unlocking device also includes:

[0011] The handle has its left end rotatably connected to the left end of the inner solid block, and its right end is used to abut against the lower end of the latch.

[0012] Furthermore, the hand-held unlocking device also includes:

[0013] A push block is provided at the lower inner end of the handle, and the push block is used to abut against the lower end of the latch.

[0014] Furthermore, the hand-held unlocking device also includes:

[0015] A spring is provided at the lower right end of the inner fixed block, with a limiting cylinder having an opening facing downwards. The spring is disposed inside the limiting cylinder and is coaxially distributed with the limiting cylinder. The lower end of the spring is used to abut against the handle.

[0016] Furthermore, the hand-held unlocking device also includes:

[0017] The outer fixed block has its left end connected to the left end of the inner fixed block by bolts to the crossbeam or the bracket, and its right end connected to the right end of the inner fixed block by bolts to the crossbeam or the bracket.

[0018] Furthermore, the hand-held unlocking device also includes:

[0019] A guide post is connected to the inner solid block, and a guide groove is provided on the handle, with the guide post slidably connected to the guide groove.

[0020] The technical effects and advantages of this utility model are as follows:

[0021] 1. The middle part of the latch is rotated and connected to the inner fixed block. By moving the lower end of the latch, the upper end of the latch can be moved. The two ends of the thread are connected to the upper end of the latch and the door lock slide respectively, so that the latch pulls the door lock slide through the thread, which causes the door lock slide to drive the bolt to unlock and open the door.

[0022] 2. Compared to staff opening the door by sliding the door lock slide, it is more convenient to directly activate the latch connected to the beam or bracket via the internal fixing block.

[0023] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the mechanisms pointed out in the description and drawings. Attached Figure Description

[0024] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1A schematic diagram of the hand-held unlocking device according to an embodiment of the present invention is shown;

[0026] Figure 2 A partial structural schematic diagram of the hand-held unlocking device according to an embodiment of the present invention is shown;

[0027] Figure 3 It shows Figure 2 A cross-sectional view along the AA direction.

[0028] Reference numerals: 1. Inner fixing block; 2. Lock; 3. Through hole; 4. Hanging hole; 5. Pull-out block; 6. Threading hole; 7. Handle; 8. Push block; 9. Mounting groove; 10. Spring; 11. Limiting cylinder; 12. Outer fixing block; 13. Bolt; 14. Guide post; 15. Guide groove. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] The positive X-axis points forward, and the negative X-axis points backward; the positive Y-axis points left, and the negative Y-axis points right; the positive Z-axis points upward, and the negative Z-axis points downward.

[0031] like Figures 1 to 3As shown, a hand-held unlocking device according to an embodiment of this utility model includes an inner fixed block 1 and a latch 2. The inner fixed block 1 is used to connect to a crossbeam or bracket. The latch 2 is rotatably connected to the inner fixed block 1 at its middle part. The upper end of the latch 2 is used to connect one end of a wire, and the other end of the wire is used to connect to a door lock slide, which is used to limit the latch tongue. Specifically, the crossbeam and the bracket are both located in the loader cab. Furthermore, the axial direction of the middle part of the latch 2 faces the front-rear direction. The inner fixed block 1 is connected to the crossbeam or bracket by bolts 13, or by opening a matching slot on the crossbeam or bracket to latch the inner fixed block 1 onto the crossbeam or bracket. In this embodiment, the distance between the crossbeam or bracket and the door lock in the loader cab is relatively far, making it easy for the operator to access the crossbeam or bracket from the driver's position, but difficult to access the door lock. The door lock has a lock body with a sliding door lock slide (or lever) and a bolt rotatably connected to it. The sliding door lock slide limits the bolt, and the bolt limits the lock cylinder on the door to prevent the door from opening. The latch 2 is rotatably connected to the inner block 1 in the middle. By moving the lower end of the latch 2, the upper end of the latch 2 can be moved. A thread connects the upper end of the latch 2 to the sliding door lock slide, so that the latch 2 pulls the sliding door lock slide, causing the sliding door lock slide to unlock the bolt and open the door. This is more convenient than having the worker move the sliding door lock slide; directly moving the latch 2, which is connected to the beam or bracket via the inner block 1, is much easier.

[0032] In this embodiment, the latch 2 is set to a shape similar to ">".

[0033] Optionally, such as Figures 1 to 3 As shown, the upper end of the inner solid block 1 has a through hole 3 through which the upper end of the inner solid block 1 passes. The upper end of the latch 2 has a hanging hole 4, and the thread is used to connect to the hanging hole 4. Specifically, by opening the through hole 3 at the upper left side of the inner solid block 1, the upper end of the inner solid block 1 can pass through the through hole 3 and can swing left and right within the through hole 3. Secondly, by opening the hanging hole 4 at the upper end of the latch 2, it is convenient to pass the thread through the hanging hole 4 and connect it to the upper end of the latch 2.

[0034] Optionally, such as Figures 1 to 3 As shown, a pull-wire block 5 is provided at the upper end of the inner solid block 1. The pull-wire block 5 is located to the right of the through hole 3. Threading holes 6 are provided at both the left and right ends of the pull-wire block 5, and these holes 6 are used for the thread to pass through. Specifically, the pull-wire block 5 can be integrally formed with the inner solid block 1. By providing threading holes 6 at both the left and right ends of the pull-wire block 5, after one end of the thread is connected to the upper end of the latch 2, it passes through the two threading holes 6 in sequence. This allows the two threading holes 6 to guide the thread, ensuring that the other end of the thread is accurately connected to the door lock slide.

[0035] In this embodiment, the two threading holes 6 are coaxially distributed.

[0036] Optionally, such as Figures 1 to 3 As shown, the hand-held unlocking device also includes a handle 7. The left end of the handle 7 is rotatably connected to the left end of the inner solid block 1, and the right end of the handle 7 is used to abut against the lower end of the latch 2. Specifically, by setting the handle 7, with its left end rotatably connected to the left end of the inner solid block 1 and its right end abutting against the lower end of the latch 2, the operator can apply force to the handle 7 to push the lower end of the latch 2, thereby causing the middle part of the latch 2 to rotate, so that the upper end of the latch 2 pulls the thread during the swinging process. Compared to directly prying the lower end of the latch 2, the contact area of ​​the handle 7 is larger, making it easier for the operator to apply force.

[0037] Optionally, such as Figure 3 As shown, the hand-held unlocking device also includes a push block 8, which is provided at the lower inner end of the handle 7. The push block 8 is used to abut against the lower end of the latch 2. Specifically, an upward-facing mounting groove 9 is opened at the upper end of the handle 7, and the push block 8 is provided on the bottom surface of the mounting groove 9. Secondly, by providing the push block 8 in the handle 7, when the handle 7 is opened relative to the inner fixed block 1, the push block 8 can be used to hold the lower end of the latch 2. When it is necessary to open the driver's door, the operator applies force to the handle 7, which facilitates the transmission of force to the lower end of the latch 2 through the push block 8, preventing relative sliding between the handle 7 and the lower end of the latch 2, which would make it difficult to apply force. This facilitates applying force to the lower end of the latch 2 to drive the middle part of the latch 2 to rotate.

[0038] In this embodiment, the push block 8 can be integrally formed with the grip 7. The push block 8 is configured as a prism-shaped structure.

[0039] Optionally, such as Figure 3 As shown, the hand-held unlocking device also includes a spring 10. A limiting cylinder 11 is provided at the lower right end of the inner fixed block 1, with the opening of the limiting cylinder 11 facing downwards. The spring 10 is disposed inside the limiting cylinder 11 and is coaxially distributed with the limiting cylinder 11. The lower end of the spring 10 is used to abut against the handle 7. Specifically, by providing the spring 10 between the inner fixed block 1 and the handle 7, the operator applies force to the handle 7, causing the handle 7 to rotate relative to the inner fixed block 1, and compressing the spring 10. After the driver's door is opened, the force applied to the handle 7 is stopped, and the spring 10 extends, causing the handle 7 to return to its original position.

[0040] Optionally, such as Figure 1As shown, the hand-held unlocking device also includes an outer fixing block 12. The left end of the outer fixing block 12 is connected to the left end of the inner fixing block 1 by bolts 13 to the crossbeam or the bracket, and the right end of the outer fixing block 12 is connected to the right end of the inner fixing block 1 by bolts 13 to the crossbeam or the bracket. Specifically, on the one hand, the inner fixing block 1 and the outer fixing block 12 can be connected to the crossbeam or the bracket by bolts 13; on the other hand, the outer fixing block 12 can wrap around the inner fixing block 1, thus protecting the structure of the inner fixing block 1.

[0041] Optionally, such as Figure 2 As shown, the hand-held unlocking device also includes a guide post 14, which is connected to the inner fixed block 1. A guide groove 15 is provided on the handle 7, and the guide post 14 is slidably connected to the guide groove 15. Specifically, the guide post 14 is located in the middle of the inner fixed block 1. The guide groove 15 is an arc-shaped structure protruding to the right. Therefore, by setting the guide post 14 and the guide groove 15, during the rotation of the handle 7 relative to the inner fixed block 1, the guide post 14 slides within the guide groove 15, guiding the handle 7 and preventing deviation from its movement trajectory. This helps ensure the stability of the handle 7's movement and ensures that the handle 7 can drive the middle part of the latch 2 to rotate.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions 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 hand-held unlocking device, characterized in that, include: An inner solid block (1) is used to connect to a crossbeam or a bracket; The latch (2) is rotatably connected to the inner block (1) at its middle part. The upper end of the latch (2) is used to connect one end of the wire, and the other end of the wire is used to connect the door lock slide. The door lock slide is used to limit the lock tongue.

2. The hand-held unlocking device according to claim 1, characterized in that, The inner solid block (1) has a through hole (3) at its upper end, and the upper end of the inner solid block (1) passes through the through hole (3). The buckle (2) has a hanging hole (4) at its upper end, and the wire is used to connect to the hanging hole (4).

3. The hand-held unlocking device according to claim 2, characterized in that, The inner solid block (1) is provided with a pull wire block (5) at the upper end. The pull wire block (5) is located on the right side of the through hole (3). The pull wire block (5) has a thread hole (6) at both the left and right ends. The thread hole (6) is used for the thread to pass through.

4. The hand-held unlocking device according to claim 3, characterized in that, Also includes: The handle (7) is rotatably connected to the left end of the inner solid block (1) and the right end of the handle (7) is used to abut against the lower end of the latch (2).

5. The hand-held unlocking device according to claim 4, characterized in that, Also includes: Push block (8), the lower end of the inner side of the handle (7) is provided with the push block (8), the push block (8) is used to abut against the lower end of the latch (2).

6. The hand-held unlocking device according to claim 5, characterized in that, Also includes: The spring (10) has a limiting cylinder (11) at the lower right end of the inner solid block (1). The opening of the limiting cylinder (11) faces downward. The spring (10) is located inside the limiting cylinder (11). The spring (10) and the limiting cylinder (11) are coaxially distributed. The lower end of the spring (10) is used to abut against the handle (7).

7. The hand-held unlocking device according to claim 6, characterized in that, Also includes: The outer fixed block (12) is connected to the left end of the inner fixed block (1) by bolts (13) to the crossbeam or the bracket. The right end of the outer fixed block (12) is connected to the right end of the inner fixed block (1) by bolts (13) to the crossbeam or the bracket.

8. The hand-held unlocking device according to claim 7, characterized in that, Also includes: A guide post (14) is connected to the inner solid block (1). A guide groove (15) is provided on the handle (7), and the guide post (14) is slidably connected to the guide groove (15).

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