Upturning type self-locking vehicle door

Abstract

The utility model relates to the technical field of special vehicle manufacturing and discloses an upturning type self-locking vehicle door, a door plate is installed on the rear opening side of a door body opening in an overturning mode, electric push rods are arranged on the two sides of the door plate, and connecting shaft columns are installed at the push rod ends of the two electric push rods. The connecting lock tongue can be driven by the connecting shaft column to achieve inserting locking and sliding-out unlocking with the adjustable limit, the door plate is installed on the automobile body in an external buckling mode, a gap between the door plate and the opening of the door body is not exposed, attractiveness and sealing performance are improved, the door plate is driven by the electric push rod, and the door plate is convenient to use. Automatic closing and locking and unlocking and opening of a door plate can be achieved by matching a connecting spring bolt and adjustable limiting sliding locking, the automatic locking and opening processes are both mechanically operated, the structure is simple, reliability is good, working parts are arranged in an external structure, all the parts are of a detachable installation structure, and the working efficiency is improved. And the device can be used as an independent component for disassembly, maintenance, replacement and the like, so that the maintenance cost in later use can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of special vehicle manufacturing, in particular to an upward-turning self-locking vehicle door. Background Art

[0002] Armored personnel carriers, also known as armored transport vehicles, are a type of special vehicle. They refer to armored vehicles used to transport infantry on the battlefield. They generally have the characteristics of high speed, low protection and combat effectiveness. As unmanned special vehicles carry out certain special missions more and more frequently in modern warfare, self-locking doors have become standard for unmanned vehicles. Most self-locking doors can be divided into side-opening doors, lower-flip doors and upper-flip doors.

[0003] Due to the requirements of special transportation environment, as the transport door body of the transport vehicle, the door of the transport vehicle needs to have a self-locking feature. In addition, due to frequent opening and closing, the self-locking door is required to meet the conditions of good reliability, easy maintenance and replacement when frequently opened. Therefore, a flip-up self-locking door is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a flip-up self-locking vehicle door to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a flip-up self-locking door, comprising a door panel installed on a vehicle body, a door opening is provided in the middle of the rear side of the vehicle body, and the door panel is flipped and installed on the rear opening side of the door opening;

[0006] Electric push rods are provided on both sides of the door panel, and connecting shaft columns are installed at the push rod ends of the two electric push rods. Connecting shaft guide blocks are provided on both sides of the upper part of the door panel. The connecting shaft column is slidably installed in the sliding groove in the middle of the connecting shaft guide block, and a connecting lock tongue is provided in the middle of the connecting shaft column. An adjustable limit is provided at the lower part of the vehicle body. The connecting lock tongue can be plugged in and locked with the adjustable limit and slided out and unlocked under the drive of the connecting shaft column.

[0007] Preferably, the door opening is arranged in the middle of the rear side of the vehicle body, a door frame is arranged inside the door opening, the door frame is fixedly welded to the inner side of the door opening, and a sealing strip is installed on the inner side of the door frame.

[0008] Preferably, a hinge is provided on the upper rear side of the above-mentioned vehicle body, and the number of the hinges is two. The two hinges are fixedly installed on both sides of the upper rear side of the vehicle body by bolts, the upper part of the door panel is connected to the hinge, and the door panel is hinged to the rear of the vehicle body by hinges.

[0009] Preferably, push rod brackets are provided on both sides of the rear of the above-mentioned vehicle body, the push rod brackets are welded to the rear of the vehicle body, a pin shaft is provided in the pin hole in the middle of the push rod bracket, and the bottom end of the electric push rod is hingedly mounted on the upper part of the push rod bracket through the pin shaft.

[0010] Preferably, the two connecting shaft guide blocks are respectively fixedly welded to the upper sides of the door panel, and the two sides of the connecting shaft column slide in the sliding grooves in the middle of the two push rod brackets, and the two ends of the connecting shaft column are respectively connected to the push rod ends of the two electric push rods.

[0011] Preferably, the upper end of the connecting lock tongue is connected to the middle of the connecting shaft column, a lock tongue guide block is welded to the middle position of the bottom of the door panel, and the lower end of the connecting lock tongue is movably inserted into the inner side of the guide hole set in the middle of the lock tongue guide block.

[0012] Preferably, a fastener is provided at the connection of the adjustable limiter, and the adjustable limiter is fixedly mounted on the middle part of the rear side of the vehicle body by the fastener, and the adjustable limiter is located below the door opening.

[0013] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:

[0014] 1. This self-locking car door installs the door panel on the car body in an external buckle form. It is an external buckle door. After installation, the gap between the door panel and the door opening does not leak out, which is beneficial to the improvement of appearance and sealing. The door panel is driven by an electric push rod, and the sliding lock connecting the lock tongue and the adjustable limit can realize the automatic closing, locking and unlocking of the door panel. The automatic locking and opening process are all mechanical operations, and no electrical control is required. The structure is simple and the reliability is good.

[0015] 2. This self-locking car door adopts an external structural setting for the working parts, and a detachable installation structure for each component. The sealing strip, door panel, hinge, connecting lock tongue, adjustable limit, electric push rod, connecting shaft column, push rod bracket and pin shaft can all be disassembled, repaired, replaced, etc. as separate parts. The convenient maintenance can save the maintenance cost in the later use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in 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 only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a rear view of a flip-up self-locking door in a locked state according to the utility model;

[0018] Figure 2 This is a rear view of an unlocked state of an upward-flipping self-locking door of the utility model;

[0019] Figure 3 This is an isometric view of an upward-flipping self-locking door of the utility model in an open state;

[0020] Figure 4 For the utility model Figure 3 Schematic diagram of the structure of the middle A area;

[0021] Figure 5 The utility model is a partial cross-sectional view of a lock tongue of a flip-up self-locking vehicle door in a locked state.

[0022] Explanation of the reference numerals in the accompanying drawings: 1. vehicle body; 2. door opening; 3. sealing strip; 4. door panel; 5. hinge; 6. connecting lock tongue; 7. lock tongue guide block; 8. adjustable limit; 9. electric push rod; 10. connecting shaft column; 11. connecting shaft guide block; 12. push rod bracket; 13. pin shaft; 14. fastener. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0025] Example

[0026] See also Figure 1-5 The utility model provides a technical solution: a flip-up self-locking door, comprising a door panel 4 mounted on a vehicle body 1. In order to facilitate the installation of the door panel 4, as shown in the attached Figure 3As shown, a door opening 2 is provided in the middle of the rear side of the vehicle body 1. The door opening 2 is provided in the middle of the rear side of the vehicle body 1. In order to improve the sealing performance of the door body, a door frame is provided inside the door opening 2. The door frame is fixedly welded to the inner side of the door opening 2. The door frame has an outer flange for fixing a sealing strip 3. The sealing strip 3 is fixedly installed on the inner side of the door frame through the outer flange. When the door panel 4 is closed, the sealing strip 3 is pressed tightly. The setting of the sealing strip 3 can improve the closing performance of the door body.

[0027] In order to install the door panel 4, as shown in the attached Figure 2 As shown, hinges 5 are provided on the upper rear side of the vehicle body 1, and there are two hinges 5. The two hinges 5 are fixedly installed on both sides of the upper rear side of the vehicle body 1 by bolts. The upper part of the door panel 4 is connected to the hinges 5. The door panel 4 is hinged to the rear of the vehicle body 1 by the hinges 5. The door panel 4 can be opened by flipping up. The door panel 4 is installed on the vehicle body 1 in an external buckle form. After installation, the gap between the door panel 4 and the door opening 2 does not leak out, which is beneficial to the improvement of aesthetics and sealing.

[0028] In order to facilitate the opening and closing of the door panel 4, electric push rods 9 are arranged on both sides of the door panel 4. The electric push rods 9 are worm gear type and have a travel switch. The travel of the two electric push rods 9 is synchronized by the controller. In order to facilitate the installation and connection of the electric push rods 9, as shown in the attached Figure 3 As shown, push rod brackets 12 are provided on both sides of the rear part of the vehicle body 1, and the push rod brackets 12 are welded to the rear part of the vehicle body 1 and are symmetrical based on the center of the door body opening 2. A pin shaft 13 is provided in the pin hole in the middle of the push rod bracket 12, and the bottom end of the electric push rod 9 is hingedly installed on the upper part of the push rod bracket 12 through the pin shaft 13. In order to realize the driving of the connecting lock tongue 6, a connecting shaft column 10 is installed at the push rod end of the two electric push rods 9, as shown in the attached Figure 3 As shown, the upper end of the connecting lock tongue 6 is sleeved and connected to the middle part of the connecting shaft column 10 and can slide along the connecting shaft column 10. In order to guide the sliding of the connecting lock tongue 6, a lock tongue guide block 7 is welded at the middle position of the bottom of the door panel 4. The lower end of the connecting lock tongue 6 is movable through and inserted into the inner side of the guide hole set in the middle part of the lock tongue guide block 7. Driven by the connecting shaft column 10, the bottom end of the connecting lock tongue 6 moves on the inner side of the guide hole. An external structure is adopted for the working parts, and a detachable installation structure is adopted for each part. The sealing strip 3, door panel 4, hinge 5, connecting lock tongue 6, adjustable limit 8, electric push rod 9, connecting shaft column 10, push rod bracket 12 and pin shaft 13 can all be disassembled, repaired, replaced, etc. as separate parts.

[0029] In order to realize the sliding guide of the connecting shaft column 10, as shown in the attached Figure 3 As shown, connecting shaft guide blocks 11 are provided on both sides of the upper part of the door panel 4. The two connecting shaft guide blocks 11 are respectively fixedly welded to both sides of the upper part of the door panel 4. Figure 4As shown, the two sides of the connecting shaft column 10 slide in the slide grooves in the middle of the two push rod brackets 12 respectively, and the two ends of the connecting shaft column 10 are connected to the push rod ends of the two electric push rods 9 respectively through pins. In order to achieve the closing and locking of the door panel 4, as shown in the attached Figure 3 As shown, an adjustable limit 8 is provided at the lower part of the vehicle body 1, and a fastener 14 is provided at the connection of the adjustable limit 8. The adjustable limit 8 is fixedly installed at the middle part of the rear side of the vehicle body 1 through the fastener 14. The adjustable limit 8 is located below the door opening 2. The adjustable limit 8 is connected to the vehicle body 1 through the fastener 14. By adjusting the adjustable limit 8, the door panel 4 and the sealing strip 3 can be fully pressed together. The connecting lock tongue 6 can be plugged in and locked and slid out and unlocked with the adjustable limit 8 under the drive of the connecting shaft column 10. The automatic locking and opening processes are all mechanical operations, and do not require electrical control. The structure is simple and the reliability is good.

[0030] Working principle or structural principle, when the door is opened, the electric push rod 9 runs and extends, driving the connecting shaft column 10 and the connecting lock tongue 6 to move upward, and when the connecting shaft column 10 moves to the upper dead point of the upper slide groove of the connecting shaft guide block 11, the connecting lock tongue 6 slides out of the adjustable limit 8, and the door is unlocked. After that, the electric push rod 9 continues to extend, driving the door panel 4 to flip upward with the rotating shaft of the hinge 5 as the reference, and the electric push rod 9 stops extending after reaching the limited stroke. At this time, the door panel 4 flips up to the maximum opening angle, and the door is opened;

[0031] When the door is closed, the electric push rod 9 shortens and drives the door panel 4 to flip downward. When the door panel 4 flips to contact the sealing strip 3, the electric push rod 9 continues to shorten and drives the connecting shaft column 10 and the connecting lock tongue 6 to move downward. When the connecting shaft column 10 moves to the lower dead point of the upper slide groove of the connecting shaft guide block 11, the connecting lock tongue 6 is inserted into the adjustable limiter 8, and the door panel 4 is pressed against the sealing strip 3, and the door is locked;

[0032] When disassembling for maintenance, first remove the pin shaft 13 and the connecting shaft column 10, then remove the electric push rod 9 and the connecting lock tongue 6, then remove the bolts on the hinge 5, then remove the hinge 5 and the door panel 4, remove the fastener 14 on the adjustable limit 8, then remove the adjustable limit 8, the adjustable limit 8 can be disassembled separately without affecting the disassembly of other parts.

[0033] In summary, the self-locking door installs the door panel 4 on the vehicle body 1 in an external buckle manner, which is an external buckle door. After installation, the gap between the door panel 4 and the door opening 2 does not leak out, which is beneficial to the improvement of aesthetics and sealing. The door panel 4 is driven by an electric push rod 9, and the sliding locking of the connecting lock tongue 6 and the adjustable limit 8 can realize automatic closing, locking and unlocking of the door panel 4. The automatic locking and opening processes are all mechanical operations, and no electrical control is required. The structure is simple and the reliability is good. The self-locking door adopts an external structural setting for the working parts, and a detachable installation structure for each component. The sealing strip 3, door panel 4, hinge 5, connecting lock tongue 6, adjustable limit 8, electric push rod 9, connecting shaft column 10, push rod bracket 12 and pin shaft 13 can all be disassembled, repaired, replaced, etc. as separate components. The convenient maintenance can save the maintenance and repair costs in the later use.

[0034] So far, the embodiments of the utility model have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each component are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0035] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flip-up self-locking vehicle door, comprising a door panel (4) mounted on a vehicle body (1), characterized in that: A door opening (2) is provided in the middle of the rear side of the vehicle body (1), and the door panel (4) is flipped and installed on the rear opening side of the door opening (2); Electric push rods (9) are arranged on both sides of the door panel (4), and connecting shaft columns (10) are installed at the push rod ends of the two electric push rods (9). Connecting shaft guide blocks (11) are arranged on both sides of the upper part of the door panel (4). The connecting shaft column (10) is slidably installed in a slide groove in the middle of the connecting shaft guide block (11). A connecting lock tongue (6) is arranged in the middle of the connecting shaft column (10), and an adjustable limiter (8) is arranged at the lower part of the vehicle body (1). Driven by the connecting shaft column (10), the connecting lock tongue (6) can be plugged in and locked with the adjustable limiter (8) and slid out and unlocked.

2. The flip-up self-locking door according to claim 1, characterized in that: The door opening (2) is arranged in the middle of the rear side of the vehicle body (1), a door frame is arranged inside the door opening (2), the door frame is fixedly welded to the inner side of the door opening (2), and a sealing strip (3) is installed on the inner side of the door frame.

3. The flip-up self-locking door according to claim 2, characterized in that: A hinge (5) is provided on the upper rear side of the vehicle body (1), and the number of the hinges (5) is two. The two hinges (5) are fixedly installed on both sides of the upper rear side of the vehicle body (1) by bolts, and the upper part of the door panel (4) is connected to the hinge (5), and the door panel (4) is hinged to the rear part of the vehicle body (1) by the hinge (5).

4. The flip-up self-locking door according to claim 3, characterized in that: Push rod brackets (12) are provided on both sides of the rear part of the vehicle body (1), and the push rod brackets (12) are welded to the rear part of the vehicle body (1). A pin shaft (13) is provided in a pin hole in the middle part of the push rod bracket (12), and the bottom end of the electric push rod (9) is hingedly mounted on the upper part of the push rod bracket (12) through the pin shaft (13).

5. The flip-up self-locking door according to claim 4, characterized in that: The two connecting shaft guide blocks (11) are respectively fixedly welded to the upper two sides of the door panel (4), and the two sides of the connecting shaft column (10) slide in the slide grooves in the middle of the two push rod brackets (12), and the two ends of the connecting shaft column (10) are respectively connected to the push rod ends of the two electric push rods (9).

6. The flip-up self-locking door according to claim 5, characterized in that: The upper end of the connecting lock tongue (6) is connected to the middle of the connecting shaft column (10), a lock tongue guide block (7) is welded to the middle position of the bottom of the door panel (4), and the lower end of the connecting lock tongue (6) is movably inserted into the inner side of a guide hole provided in the middle of the lock tongue guide block (7).

7. The flip-up self-locking door according to claim 6, characterized in that: A fastener (14) is provided at the connection of the adjustable limiter (8), and the adjustable limiter (8) is fixedly mounted on the middle part of the rear side of the vehicle body (1) through the fastener (14), and the adjustable limiter (8) is located below the door opening (2).

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