A machine hood door lock limiting guide locking structure

Abstract

This utility model discloses a door lock limiting and guiding locking structure for a vehicle hood, comprising: a door lock bracket mounted on the hood; a mounting bracket on one side of the door lock bracket; a guide plate on the mounting bracket; the guide plate being L-shaped; one end of the guide plate being connected to the mounting bracket; and the other end having a guide groove with a V-shaped opening; the guide groove is used to cooperate with a fixing pin mounted on a frame to achieve guiding and limiting; the fixing pin is connected and fixed to the frame through a fixing plate. This solves the problem that door deformation or loose hinges directly affect the normal opening and closing locking function of the door, making it impossible to reliably close and lock.

Description

Technical Field

[0001] This utility model belongs to the field of locking mechanism technology, specifically relating to a machine cover door lock limiting and guiding locking structure. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] With the rapid development of the construction machinery industry, excavators, as important construction equipment, are widely used in various engineering projects. During the operation and movement of excavators, the continuous vibration of the vehicle body under complex working conditions causes high-frequency vibration of various vehicle body components.

[0004] Prolonged exposure to such vibrations will gradually degrade the hinge fit of vehicle body door components. As a crucial component connecting the door to the vehicle body, a decrease in hinge precision not only leads to incomplete door closure and gaps, affecting sealing and sound insulation, but may also cause abnormal noises during operation, interfering with operator work. Simultaneously, door panels are prone to fatigue due to vibration, resulting in damage and deformation. Door deformation or loose hinges directly affect the normal opening and closing / locking functions of the doors, preventing reliable closure and locking, posing safety hazards. For example, the door may accidentally open while the equipment is in motion, endangering operator safety. Furthermore, frequent door problems increase maintenance frequency, raise equipment maintenance costs, and reduce equipment efficiency and economic benefits.

[0005] Currently, there are relatively limited solutions for problems caused by vibration in excavator body doors. Most designs cannot simultaneously meet the dual requirements of addressing the impact of door deformation or loose hinges on the opening and closing status, as well as extending the service life of door-related components. Utility Model Content

[0006] To address the aforementioned problems, this utility model provides a door lock limiting and guiding locking structure, which solves the problem that door deformation or loose hinges directly affect the normal opening and closing locking function of the door, making it impossible for the door to close and lock reliably.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0008] This utility model provides a machine cover door lock limiting and guiding locking structure, including: a door lock bracket mounted on the machine cover, a mounting bracket on one side of the door lock bracket, a guide plate mounted on the mounting bracket, the guide plate being L-shaped, one end of the guide plate being connected to the mounting bracket, and the other end being provided with a guide groove, the opening of the guide groove being V-shaped; the guide groove is used to cooperate with a fixing pin mounted on the frame to achieve guiding and limiting, and the fixing pin is connected and fixed to the frame through a fixing plate.

[0009] As a further implementation, the mounting bracket is a bent plate, one plane of which is fixedly connected to the door lock bracket, and the other plane is provided with fasteners and positioning pins.

[0010] As a further implementation, the end of the guide plate connected to the mounting bracket is provided with two first waist holes. One first waist hole is used to install the fastener to connect the guide plate to the mounting bracket, and the other first waist hole is used to position the guide plate to prevent the guide plate from rotating.

[0011] As a further implementation, the door lock bracket is a U-shaped steel plate, and mounting holes are provided at the four corners of the door lock bracket for mounting the door lock body and the cover.

[0012] As a further implementation, the door lock bracket and the mounting bracket are connected by welding or are made by stamping.

[0013] As a further implementation, the fixing pin is fixedly connected to the fixing plate by fasteners. The fixing pin is L-shaped or U-shaped and is made of a solid steel bar bent into shape.

[0014] As a further implementation, the fixing plate is provided with a second waist hole, the fixing pin is installed in the second waist hole, and is clamped and fixed by fasteners.

[0015] As a further implementation, the frame is also provided with a latch mounting base, which consists of a fixing block and a U-shaped plate. The U-shaped plate is mounted on the frame by the fixing block, and a latch is also provided on the U-shaped plate. The latch is fixed to the U-shaped plate by fasteners.

[0016] As a further implementation, the door lock body is provided with a lock hook, which engages with the lock buckle to lock the cover.

[0017] As a further implementation, the latch is L-shaped or U-shaped and is made of a solid steel bar bent into shape.

[0018] Compared with the prior art, the advantages and positive effects of this utility model are:

[0019] The guide plate of this utility model is L-shaped, with one end connected to the mounting bracket and the other end having a guide groove. The opening of the guide groove is V-shaped, used to cooperate with the fixing pin set on the frame to achieve guiding and limiting. The fixing pin is connected and fixed to the frame through a fixing plate. The guide groove provides precise guidance for the installation and movement of the door lock bracket, effectively preventing the door lock end from sagging. Furthermore, for door lock structures that have failed, it guides the relative position closure of the latch and hook, achieving a normal opening and closing state, thus improving the stability and reliability of the entire locking structure. The V-shaped structure of the guide groove opening reduces the locking difficulty of the hood door lock, avoiding repeated fastening of the hood and causing misalignment and collision between the hood door lock and the frame, ensuring the long-term effectiveness of the guiding and limiting function, and extending the service life of the locking structure.

[0020] The mounting bracket of this utility model is a bent plate, with one plane fixedly connected to the door lock bracket 1, and the other plane provided with a connector and a positioning pin. The bent plate mounting bracket has a simple structure and low processing cost, while effectively connecting the door lock bracket and the guide plate into a whole. The fasteners and positioning pins not only ensure reliable installation of the guide plate but also allow for quick adaptive adjustments during installation for different vehicle hoods. Two first waist holes are provided at the end of the guide plate connected to the mounting bracket. One first waist hole is used to install the fastener, connecting the guide plate to the mounting bracket, while the other first waist hole is used to position the guide plate and prevent rotation. The design of the first waist holes provides flexibility for the installation of the guide plate; by adjusting the position of the fasteners in the waist holes, the installation position of the guide plate can be fine-tuned to adapt to different hood models and installation precision requirements. Attached Figure Description

[0021] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0022] Figure 1 This is a structural diagram of the limiting guide locking structure of this utility model;

[0023] Figure 2 This is a structural diagram of the door lock bracket and guide plate of this utility model;

[0024] Figure 3 This is a diagram showing the installation structure of the limiting guide locking structure and the door lock body of this utility model.

[0025] In the diagram: 1. Door lock bracket; 2. Mounting bracket; 3. Guide plate; 4. Fixing pin; 5. Fixing plate; 6. Mounting hole; 7. Connector; 8. Positioning pin; 9. Guide groove; 10. Door lock body; 11. Frame; 12. Locking buckle; 13. Lock hook. Detailed Implementation

[0026] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise expressly indicated by the present invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Example 1

[0029] This embodiment provides a limiting and guiding locking structure for a machine hood door lock, such as... Figures 1-3 As shown, the device includes: a door lock bracket 1 mounted on the hood; a mounting bracket 2 on one side of the door lock bracket 1; a guide plate 3 on the mounting bracket 2; the guide plate 3 being L-shaped; one end of the guide plate 3 being connected to the mounting bracket 2; and a guide groove 9 at the other end; the opening of the guide groove 9 being V-shaped; the guide groove 9 is used to cooperate with a fixing pin 4 mounted on the frame 11 to achieve guiding and limiting; the fixing pin 4 is connected and fixed to the frame 11 via a fixing plate 5. The guide groove 9 provides precise guidance for the installation and movement of the door lock bracket 1, effectively preventing the door lock end from sagging, and for a failed door lock structure, it guides the relative position closure of the latch 12 and the hook 13 to achieve a normal opening and closing state, improving the stability and reliability of the entire locking structure. The V-shaped structure of the guide groove 9 reduces the locking difficulty of the hood door lock, avoids repeated fastening of the hood causing misalignment and collision between the hood door lock and the frame 11, ensures the long-term effectiveness of the guiding and limiting function, and extends the service life of the locking structure.

[0030] As a further implementation, the mounting bracket 2 is a bent plate, with one plane fixedly connected to the door lock bracket 1, and the other plane equipped with a connector 7 and a positioning pin 8. The bent plate mounting bracket 2 has a simple structure and low processing cost, while effectively connecting the door lock bracket 1 and the guide plate 3 into a single unit. The fasteners and positioning pin 8 not only ensure reliable installation of the guide plate 3 but also allow for quick and adaptable adjustments during installation on hoods of different vehicle models.

[0031] As a further implementation, the guide plate 3 is provided with two first waist holes at the end connected to the mounting bracket 2. One first waist hole is used to install the fastener and connect the guide plate 3 to the mounting bracket 2. The other first waist hole is used to position the guide plate 3 and prevent the guide plate 3 from rotating. The design of the first waist holes provides flexibility for the installation of the guide plate 3. By adjusting the position of the fastener in the waist hole, the installation position of the guide plate 3 can be finely adjusted to adapt to different models of machine covers and installation precision.

[0032] As a further implementation, the door lock bracket 1 is a U-shaped steel plate, and mounting holes 6 are provided at the four corners of the door lock bracket 1 for mounting the door lock body 10 and the cover, which can provide a stable mounting base for the door lock body 10 and the cover, and ensure the structural strength and stability of the entire locking system.

[0033] As a further implementation, the door lock bracket 1 and the mounting bracket 2 are connected by welding or by stamping and forming, which can firmly connect the door lock bracket 1 and the mounting bracket 2 into a whole, ensuring the stability and reliability of the entire locking structure.

[0034] As a further implementation, the fixing pin 4 is fixedly connected to the fixing plate 5 by fasteners. The fixing pin 4 is L-shaped or U-shaped and is made of solid steel rod bent to achieve a reliable guiding and limiting function.

[0035] As a further implementation, the fixing plate 5 is provided with a second waist hole, the fixing pin 4 is installed in the second waist hole, and is clamped and fixed by fasteners.

[0036] As a further implementation, the frame 11 is also provided with a latch 12 mounting base, which is composed of a fixing block and a U-shaped plate. The U-shaped plate is mounted on the frame 11 by the fixing block, and the U-shaped plate is also provided with a latch 12, which is fixed to the U-shaped plate by fasteners.

[0037] As a further implementation, the door lock body 10 is provided with a lock hook 13, which engages with the lock buckle 12 to lock the cover.

[0038] As a further implementation, the latch 12 is L-shaped or U-shaped and made of a solid steel rod bent to achieve a reliable guiding and limiting function.

[0039] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A machine hood door lock limiting and guiding locking structure, characterized in that, include: A door lock bracket is installed on the machine cover. A mounting bracket is provided on one side of the door lock bracket. A guide plate is provided on the mounting bracket. The guide plate is L-shaped. One end of the guide plate is connected to the mounting bracket, and the other end is provided with a guide groove. The opening of the guide groove is V-shaped. The guide groove is used to cooperate with a fixing pin provided on the machine frame to achieve guiding and limiting. The fixing pin is connected and fixed to the machine frame through a fixing plate.

2. The hood door lock limit guide locking structure according to claim 1, characterized in that, The mounting bracket is a bent plate, with one plane fixedly connected to the door lock bracket, and fasteners and positioning pins provided on the other plane.

3. The machine hood door lock limiting guide locking structure as described in claim 2, characterized in that, The guide plate is provided with two first waist holes at one end where it is connected to the mounting bracket. One first waist hole is used to install the fastener to connect the guide plate to the mounting bracket, and the other first waist hole is used to position the guide plate to prevent it from rotating.

4. The hood door lock limit guide lock structure according to claim 1, wherein The door lock bracket is a U-shaped steel plate, and mounting holes are provided at the four corners of the door lock bracket for mounting the door lock body and the cover.

5. The hood door lock limit guide lock structure according to claim 1, wherein The door lock bracket and the mounting bracket are connected by welding or by stamping and forming.

6. A hood latch check and guide structure as defined in claim 1 wherein, The fixing pin is fixedly connected to the fixing plate by fasteners. The fixing pin is L-shaped or U-shaped and is made of a solid steel bar bent into shape.

7. A hood latch check and guide structure as defined in claim 1 wherein, The fixing plate is provided with a second waist hole, and the fixing pin is installed in the second waist hole and clamped and fixed by fasteners.

8. The hood door lock limit guide lock structure according to claim 4, wherein The frame is also provided with a locking mounting base, which consists of a fixing block and a U-shaped plate. The U-shaped plate is mounted on the frame by the fixing block, and a locking buckle is also provided on the U-shaped plate. The locking buckle is fixed to the U-shaped plate by fasteners.

9. A hood latch check structure according to claim 8, wherein The door lock body is provided with a lock hook, which engages with the lock buckle to lock the cover.

10. The hood door lock limit guide lock structure according to claim 8, wherein The latch is L-shaped or U-shaped and is made of a solid steel bar bent into shape.

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