CN218912569U - Door opening and closing mechanism and engineering machinery - Google Patents

Abstract

The utility model discloses a vehicle door opening and closing mechanism and engineering machinery, which comprises a cab framework, a vehicle door framework and a glass module, wherein the vehicle door framework is arranged on the cab framework, a combined hinge and a vehicle door limiting module are arranged between the vehicle door framework and the cab framework, a vehicle door control module and the glass module are arranged on the vehicle door framework, and a glass limiting module and a glass control module are arranged on the glass module. According to the door opening and closing mechanism, under the condition that the opening angle of the whole door is limited, the door glass can be easily opened and locked at an angle of 180 degrees or even larger, under the premise that the safety of a user is ensured, the user can stretch out of the body to obtain the welt visual field, and meanwhile, the user can easily unlock and retract the fixed door glass, so that the personal safety of the user is ensured.

Description

Door opening and closing mechanism and engineering machinery

Technical Field

The utility model relates to a vehicle door opening and closing mechanism and engineering machinery, and belongs to the technical field of engineering machinery equipment.

Background

At present, the cab door of the engineering machinery is only used for ensuring that the cab is convenient to get on or off, most of the door is simple in structural design, adopts an integral structure of adhering and fixing glass to a door framework, is affected by arrangement of the whole machine, is limited in door opening angle, and cannot provide convenience for operation and welting vision of a user. Meanwhile, when the construction condition is observed by opening the vehicle door in construction operation of engineering machinery, potential safety hazards are brought to users, and the risk of falling exists.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides a vehicle door opening and closing mechanism and engineering machinery, which solve the problems of poor welting field of users of the engineering machinery, safety and the like.

In order to achieve the above purpose, the vehicle door opening and closing mechanism comprises a cab framework, a vehicle door framework and a glass module, wherein the vehicle door framework is arranged on the cab framework, a combined hinge and a vehicle door limiting module are arranged between the vehicle door framework and the cab framework, a vehicle door control module and the glass module are arranged on the vehicle door framework, and a glass limiting module and a glass control module are arranged on the glass module.

As an improvement, the combination hinge includes a shaft, a hinge, and a nylon spacer, the hinge being assembled to the cab frame, the door frame, and the glass module, respectively, and the nylon spacer being assembled to the glass.

As an improvement, the vehicle door limiting module comprises a gas spring and a limiting belt, and the gas spring and the limiting belt are respectively arranged between the cab framework and the vehicle door framework.

As an improvement, the door control module comprises a combined door lock and an inner door handle, which are respectively mounted on the door frame.

As an improvement, the glass module comprises glass and a glass skeleton, wherein the glass is arranged on the glass skeleton, and the glass skeleton is arranged on the vehicle door skeleton.

As an improvement, the glass limiting module comprises a positioning lock and a limiting support, wherein the positioning lock comprises a positioning lock body and a positioning lock column, the positioning lock body is arranged on glass, the positioning lock column is arranged on the limiting support, and the limiting support is arranged on a cab framework.

As an improvement, the glass control module comprises a pull rod, a handle ball and a handle, wherein one end of the pull rod is fixed on the glass limiting module, and the other end of the pull rod penetrates through the handle ball to be connected with the handle ball.

In addition, the utility model also provides engineering machinery, and the engineering machinery is provided with the vehicle door opening and closing mechanism.

Compared with the prior art, the door opening and closing mechanism has the advantages that under the condition that the opening angle of the whole door is limited, the door glass can be easily opened and locked at an angle of 180 degrees or more, under the premise that the safety of a user is ensured, the user can stretch out of the body to obtain the welt view, and meanwhile, the user can easily unlock and retract the fixed door glass, so that the personal safety of the user is ensured.

Drawings

FIG. 1 is a schematic view of a split structure of a door opening and closing mechanism of the present utility model;

FIG. 2 is a schematic view of a split structure of a combination hinge according to the present utility model;

FIG. 3 is a schematic view of a split structure of a glass module according to the present utility model;

FIG. 4 is a schematic diagram of a split structure of a glass control module according to the present utility model;

FIG. 5 is a schematic diagram of a first embodiment of the present utility model;

FIG. 6 is a second schematic diagram of the structure of the present utility model;

FIG. 7 is a schematic diagram of various states of the present utility model;

in the figure: 1. cab skeleton, 2, combined hinge, 21, first hinge, 22, axle, 23, second hinge, 24, third hinge, 25, first nylon cushion, 26, second nylon cushion, 3, door skeleton, 4, door limiting module, 41, gas spring, 42, limiting belt, 5, door control module, 51, combined door lock, 52, door inner handle, 6, glass module, 61, glass, 62, glass skeleton, 7, glass limiting module, 71, positioning lock body, 72, positioning lock column, 73, limiting support, 8, glass control module, 81, handle ball, 82, pull rod, 83, handle.

Detailed Description

The present utility model will be described in further detail below in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs, and the terms used herein in this description of the utility model are for the purpose of describing particular embodiments only and are not intended to be limiting of the utility model.

As shown in fig. 1, 5 and 6, a door opening and closing mechanism comprises a cab skeleton 1, a door skeleton 3 and a glass module 6, wherein the door skeleton 3 is installed on the cab skeleton 1, a combined hinge 2 and a door limiting module 4 are installed between the door skeleton 3 and the cab skeleton 1, a door control module 5 and the glass module 6 are installed on the door skeleton 3, and a glass limiting module 7 and a glass control module 8 are installed on the glass module 6.

As an improvement of the embodiment, as shown in fig. 2, the combined hinge 2 includes a shaft 22, a first hinge 21, a second hinge 23, a third hinge 24, a first nylon cushion 25 and a second nylon cushion 26; the shaft 22 is arranged on a first hinge 21, a second hinge 23 and a third hinge 24, wherein the first hinge 21 is assembled on the cab framework 1, the second hinge 23 is assembled on the glass module 6, the third hinge 24 is assembled on the vehicle door framework 3, and the first nylon cushion block 25 and the second nylon cushion block 26 are respectively assembled on the inner surface and the outer surface of glass to prevent the first hinge from rigidly contacting the glass.

As an improvement of the embodiment, as shown in fig. 3, the glass module 6 includes glass 61 and a glass skeleton 62, where the glass 61 is mounted on the glass skeleton 62, and the glass skeleton 62 may be formed by butt welding a bent pipe and a rib plate, and the material is not limited to metal.

As an improvement of the embodiment, as shown in fig. 4, the glass control module 8 is mainly composed of a pull rod 82, a handle ball 81 and a pull handle 83, wherein the pull handle 83 can be a part of the glass skeleton 62 or can be installed separately; one end of the pull rod 82 is fixed to the opening mechanism of the positioning lock body 71, and the other end passes through the circular hole on the pull handle 83 and then is assembled with the handle ball 81.

As shown in fig. 5, the glass control module 8 is located in the user's accessible comfort area, and the user can realize the on-off function by only small-amplitude body change, so that the operation is simple and convenient. In addition, as shown in fig. 6, in the open state of the glass module 6, the user can easily come out of the window to directly observe the construction state, obtain the peripheral view, and quickly adjust the operation. Meanwhile, the reinforcing rib plates are arranged at the elbow positions of the users, so that the users can be protected from falling off the vehicle, and the safety of the users is guaranteed.

As an improvement of the embodiment, as shown in fig. 1, the door control module 5 includes a combined door lock 51 and an inside door handle 52 mounted on the door frame 3, and the door control module 5 controls the opening and closing and locking of the whole door.

As an improvement of the embodiment, as shown in fig. 1, the door limiting module 4 includes a gas spring 41 and a limiting belt 42 installed between the cab frame 1 and the door frame 3, which together limit the overall opening and closing angle of the door. When the vehicle door is completely opened, the limiting belt 42 is in a tensioning state, the gas spring 41 does not reach the maximum stroke, and the gas spring 41 can be protected from being damaged; when the vehicle door is completely closed, the stress direction of the air spring 41 passes through the dead point position, the air spring 41 applies inward pressure to the vehicle door framework 4 to press the sealing rubber strip, and the sealing performance of the vehicle door is improved.

As an improvement of the embodiment, as shown in fig. 1, the glass limiting module 7 includes a positioning lock and a limiting bracket 73, the positioning lock includes a positioning lock body 71 and a positioning lock column 72, the positioning lock body 71 is installed on the glass 61, the positioning lock column 72 is installed on the limiting bracket 73, and the limiting bracket 73 is installed on the cab skeleton 1. The specific positions of the positioning lock body 71 and the limiting bracket 73 are determined according to the size of the glass 61 and the opening angle required by the whole machine.

In use, as shown in fig. 7, there are four states when the vehicle door is in operation: (a) is in the overall door closed state; (b) the whole door is opened; (c) The glass module 6 is opened when the door frame 3 is closed; (d) The door frame 3 is opened, and the glass module 6 is opened. The four working states can be flexibly selected according to the specific condition of site construction and the needs of users.

Finally, the utility model also provides engineering machinery, and the engineering machinery is provided with the vehicle door opening and closing mechanism.

According to the door opening and closing mechanism, under the condition that the opening angle of the whole door is limited, the door glass can be easily opened and locked at an angle of 180 degrees or even larger, under the premise that the safety of a user is ensured, the user can stretch out of the body to obtain the welt visual field, and meanwhile, the user can easily unlock and retract the fixed door glass, so that the personal safety of the user is ensured.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the utility model.

Claims (8)

1. The utility model provides a door opening and closing mechanism, its characterized in that, includes driver's cabin skeleton (1), door skeleton (3) and glass module (6), door skeleton (3) are installed on driver's cabin skeleton (1), install combination hinge (2) and door spacing module (4) between door skeleton (3) and driver's cabin skeleton (1), install door control module (5) on door skeleton (3) with glass module (6), install glass spacing module (7) and glass control module (8) on glass module (6).

2. A door opening and closing mechanism according to claim 1, characterized in that the combination hinge (2) comprises a shaft (22), a hinge and a nylon spacer, the hinge being fitted to the cab skeleton (1), the door skeleton (3) and the glass module (6), respectively, the nylon spacer being fitted to the glass.

3. A door opening and closing mechanism according to claim 1, characterized in that the door check module (4) comprises a gas spring (41) and a check strap (42), the gas spring (41) and the check strap (42) being mounted between the cab frame (1) and the door frame (3), respectively.

4. A door opening and closing mechanism according to claim 1, wherein the door control module (5) includes a combination door lock (51) and an inside door handle (52), the combination door lock (51) and inside door handle (52) being mounted on the door frame (3), respectively.

5. A door opening and closing mechanism according to claim 1, wherein the glass module (6) comprises glass (61) and a glass skeleton (62), the glass (61) is mounted on the glass skeleton (62), and the glass skeleton (62) is mounted on the door skeleton (3).

6. The vehicle door opening and closing mechanism according to claim 1, wherein the glass limiting module (7) comprises a positioning lock and a limiting bracket (73), the positioning lock comprises a positioning lock body (71) and a positioning lock column (72), the positioning lock body (71) is mounted on the glass (61), the positioning lock column (72) is mounted on the limiting bracket (73), and the limiting bracket (73) is mounted on the cab skeleton (1).

7. The vehicle door opening and closing mechanism according to claim 1, wherein the glass control module (8) comprises a pull rod (81), a handle ball (82) and a handle (83), one end of the pull rod (81) is fixed on the glass limiting module (7), and the other end of the pull rod passes through the handle (83) to be connected with the handle ball (82).

8. A construction machine, wherein the door opening and closing mechanism according to any one of claims 1 to 7 is mounted on the construction machine.

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