Sliding opening and closing door and engineering machinery vehicle

Abstract

The utility model discloses a sliding opening and closing door and an engineering machinery vehicle. The sliding opening and closing door comprises a door frame and a door plate. A first slider and a second slider are mounted at two ends of the door plate respectively; a first guide rail and a second guide rail are mounted on the door frame; the door plate capable of sliding left and right is slidably arranged between the first guide rail and the second guide rail through the first sliding piece and the second sliding piece. The first guide rail comprises a supporting piece installed on the door frame and capable of moving up and down relative to the door plate. The supporting piece is provided with a first limiting piece and a second limiting piece capable of getting close to or getting away from the first limiting piece in the thickness direction of the door plate, the first limiting piece and the second limiting piece are arranged at intervals in the thickness direction of the door plate, and a gap for the first sliding piece to slide is formed between the first limiting piece and the second limiting piece. Through the arrangement of the door plate, the first guide rail and the second guide rail, on one hand, the operation is simple, and on the other hand, the interference of the door plate to operators is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering machinery vehicles, and in particular relates to a sliding switch door and an engineering machinery vehicle. Background Art

[0002] Construction machinery vehicles are vehicles specially used to perform various engineering tasks. There are many types of construction machinery vehicles, such as heavy transport vehicles, large cranes, excavators and bulldozers.

[0003] At present, concrete pump trailers and related engineering machinery vehicles mostly use side doors to protect structures such as power equipment, display screens, button switches and electrical boxes on the vehicles, and the side doors are mostly installed on the vehicles with hinges or bolts; during the use of such engineering machinery vehicles, on the one hand, it is necessary to regularly inspect and maintain the equipment in the side doors, and on the other hand, it is also necessary to observe the display screens and operate the electrical boxes in the vehicle on weekdays; therefore, if the side door is opened directly to perform the above operations, due to the large size of the side door, there are problems of inconvenience, time-consuming and labor-intensive operation; therefore, it is necessary to install a small door on the side door for observing the display screens and operating the electrical boxes in the vehicle.

[0004] In the prior art, door panels are mostly hinged to door frames by hinges, and there are two ways of opening the hinged door panels: opening up and down and opening left and right. The up and down opening method requires a supporting structure to prevent the door panels from closing under their own gravity after opening; the left and right opening method requires a limiting mechanism to prevent the door panels from rotating after opening. Both of these opening methods have the disadvantage of complex structures, and there is also the problem of a large range of motion when opening the door panels. These defects will interfere with the arrangement of related equipment on the outside of the vehicle. After opening the door panels, the door panels and corresponding components will also occupy the door opening space. Therefore, the hinged door panels are easy to interfere with the operators and also affect the operators' observation field of view. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a sliding door and an engineering machinery vehicle. By setting a door panel, a first guide rail and a second guide rail, the door panel can be slid left and right to open and close the door. On the one hand, the utility model has the advantage of simple operation. On the other hand, after the door is opened, the interference of the door panel on the operator is reduced, and the influence of the door panel on the operator's observation field is reduced.

[0006] The utility model provides the following technical solutions:

[0007] A sliding door comprises a door frame and a door panel; a first sliding member and a second sliding member are respectively installed at both ends of the door panel along its height direction; a first guide rail slidably matched with the first sliding member and a second guide rail slidably matched with the second sliding member are installed on the door frame; the door panel capable of sliding left and right is slidably arranged between the first guide rail and the second guide rail through the first sliding member and the second sliding member; the first guide rail comprises a supporting member installed on the door frame and capable of moving up and down relative to the door panel; a first limiting member and a second limiting member capable of approaching or moving away from the first limiting member along the thickness direction of the door panel are provided on the supporting member, and the first limiting member and the second limiting member are spaced apart along the thickness direction of the door panel, and a gap is provided between the two for the sliding of the first sliding member.

[0008] Furthermore, when observed along the sliding direction of the door panel, the second limiting member is Z-shaped; a first threaded member is provided on the supporting member, and a second threaded member is threadedly connected to the first threaded member; a first long hole is provided at the bottom of the second limiting member along the thickness direction of the door panel, and the second limiting member can be slidably mounted on the first threaded member through the first long hole, and the second limiting member and the supporting member are detachably connected through the first threaded member and the second threaded member.

[0009] Furthermore, a third threaded member is provided at the position where the support member is set on the door frame, and a fourth threaded member is threadedly connected to the third threaded member; a second long hole is opened on the support member in the vertical direction, and the support member can be slidably mounted on the third threaded member through the second long hole, and the door frame and the support member are detachably connected by the third threaded member and the fourth threaded member.

[0010] Furthermore, a third limiting member that can fit with the door frame extends outward from one side of the front of the door panel, and a magnet for adsorbing the door panel to the door frame is installed on the third limiting member.

[0011] Furthermore, a handle is installed on the front side of the door panel away from the third limiting member.

[0012] Furthermore, one end of the door panel close to the first guide rail extends into the gap of the first guide rail to form a first sliding member in a plate-like body.

[0013] Furthermore, the second sliding member is a pulley.

[0014] Furthermore, stoppers are installed at both ends of the slideway of the first guide rail and both ends of the slideway of the second guide rail.

[0015] In a second aspect, a construction machinery vehicle is provided, comprising the sliding switch door as described above.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. By setting a sliding switch door, by opening the sliding switch door, the display screen in the car can be observed and the electrical box in the car can be operated, thereby avoiding directly opening the side door to perform the above operations. Therefore, the switch door of the utility model has the advantages of flexible and easy operation; on the other hand, after opening the sliding switch door, since the door panel is hidden behind the side door, the interference of the door panel on the operator is reduced, and the influence of the door panel on the operator's observation field is reduced.

[0018] 2. By enabling the support member to move up and down relative to the door panel, the second limit member can be moved closer to or away from the first limit member; therefore, by adjusting the spacing between the first guide rail and the second guide rail, or by adjusting the gap between the first limit member and the second limit member, the purpose of adjustable sliding resistance of the door panel is achieved, so that after the door panel slides to a suitable position, it will not shake at will without the action of external force.

[0019] 3. By setting a magnet, the door panel can be locked and fixed by the suction force of the magnet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the connection relationship between the front side door and the sliding switch door in the first embodiment of the present utility model.

[0021] Figure 2 It is a schematic diagram of the connection relationship between the back side door and the sliding switch door in the first embodiment of the utility model.

[0022] Figure 3 It is a structural schematic diagram of the sliding switch door in the first embodiment of the utility model.

[0023] Figure 4 It is a structural schematic diagram of installing a sliding switch door on an engineering machinery vehicle in the second embodiment of the utility model.

[0024] Numbers in the figure: door frame 1, door panel 2, first guide rail 3, second guide rail 4, support member 5, first limit member 6, second limit member 7, first threaded member 8, third threaded member 9, handle 10, third limit member 11, magnet 12, sliding switch door 13, construction machinery vehicle 14, electrical box 15, side door 16. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0026] It should be noted that, in the description of the present invention, the directions or positional relationships indicated by terms such as "front", "rear", "left", "right", "up", "down", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0027] Embodiment 1:

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, the present embodiment provides a sliding switch door, comprising a door frame 1 and a door panel 2; a first sliding member and a second sliding member are respectively installed at both ends of the door panel 2 along its height direction; a first guide rail 3 (arranged along the left-right direction) slidably matched with the first sliding member, and a second guide rail 4 (arranged along the left-right direction) slidably matched with the second sliding member are installed on the door frame 1; the door panel 2 capable of sliding left and right is slidably arranged between the first guide rail 3 and the second guide rail 4 through the first sliding member and the second sliding member; the first guide rail 3 includes a support member 5 installed on the door frame 1 and capable of moving up and down relative to the door panel 2; a first limiting member 6 and a second limiting member 7 capable of approaching or moving away from the first limiting member along the thickness direction of the door panel 2 are provided on the support member, and the first limiting member 6 and the second limiting member 7 are spaced apart along the thickness direction of the door panel 2, and there is a gap between the two for the sliding of the first sliding member.

[0029] In this embodiment, the left-right direction is the width direction of the door panel, the front-back direction is the thickness direction of the door panel, and the height direction is consistent with the vertical direction; the second guide rail 4 is a C-shaped pipe that can be equipped with a built-in pulley.

[0030] The positions of the first sliding member and the first guide rail 3 and the second sliding member and the second guide rail 4 are not fixed. The first sliding member and the first guide rail 3 can be located at the top of the door panel, or the second sliding member and the second guide rail 4 can be located at the top of the door panel. In this embodiment, the second sliding member and the second guide rail 4 are located at the top of the door panel, and the first sliding member and the first guide rail 3 are located at the bottom of the door panel.

[0031] Embodiment 2:

[0032] Based on the first embodiment, this embodiment provides a sliding door.

[0033] Observe along the sliding direction of the door panel 2 (as Figure 3(viewed from left to right in the figure), the second limiting member 7 is Z-shaped; a first threaded member 8 (which may be a first bolt) is provided on the support member 5, and a second threaded member (which may be a first nut) is threadedly connected to the first threaded member; a first long hole is opened at the bottom of the second limiting member 7 along the thickness direction of the door panel 2, and the second limiting member 7 can be slidably mounted on the first threaded member 8 through the first long hole, and the second limiting member 7 and the support member 5 are detachably connected through the first threaded member 8 and the second threaded member.

[0034] In this embodiment, since the positions of the first sliding member and the first guide rail 3 and the second sliding member and the second guide rail 4 are not fixed, the bottom of the second limit member is as follows: Figure 3 The bottom of the installation direction is shown, when the sliding switch door is relative to Figure 3 After the upside-down setting, since the door is already upside down, the bottom of the second limit member refers to the support member 5 as a reference, that is, the end close to the support member 5 is the bottom end, and the end away from the support member 5 is the top end.

[0035] A third threaded member 9 (second bolt) is provided at the position where the support member 5 is provided on the door frame 1, and a fourth threaded member (second nut) is threadedly connected to the third threaded member; a second long hole is opened on the support member 5 in the vertical direction, and the support member 5 can be slidably mounted on the third threaded member 9 through the second long hole, and the door frame 1 and the support member 5 are detachably connected by the third threaded member 9 and the fourth threaded member.

[0036] A third stopper 11 that can fit with the door frame 1 extends outward from one side of the front of the door panel 2 , and a magnet 12 for adsorbing the door panel 2 to the door frame 1 is installed on the third stopper.

[0037] In this embodiment, the third limit member 11 moves with the door panel 2; when the door is closed, the third limit member 11 fits against the door frame; in addition, a fourth limit member opposite to the third limit member 11 may be provided on the door frame, and the locking function is achieved by adsorbing the fourth limit member by a magnet.

[0038] A handle 10 is installed on the front side of the door panel 2 away from the third limiting member 11 .

[0039] One end of the door panel 2 close to the first guide rail 3 extends into the gap of the first guide rail to form a first sliding member in a plate-like body.

[0040] The second sliding member is a pulley.

[0041] In this embodiment, the pulley is a simple machine with a groove on its curved surface, and the wheel can rotate. By setting the pulley, the door panel can slide more flexibly.

[0042] Stoppers are installed at both ends of the slideway of the first guide rail 3 and the second guide rail 4.

[0043] In this embodiment, the stopper is a strip-shaped body installed in the first guide rail 3 and the second guide rail 4. When the first sliding member and the second sliding member slide to the stopper, they cannot continue to slide forward.

[0044] Embodiment three:

[0045] like Figure 4 As shown, this embodiment provides an engineering machinery vehicle, including the sliding switch door 13 in the second embodiment.

[0046] In this embodiment, the engineering machinery vehicle 14 is provided with a side door 16 connected to the vehicle body by hinges or bolts, and a display screen, an electrical box 15, etc. are arranged in the side door. The sliding switch door 13 is arranged on the side door 16, and a door opening is opened on the side door, and the electrical box 15 can be operated by opening the door.

[0047] In this embodiment, the door frame can be replaced by the door panel of the side door 16 (that is, the door frame is not required), that is, the first guide rail 3 and the second guide rail 4 are directly installed on the side door 16, and the edge of one side of the door opening is bent inward to form a bent portion that cooperates with the third limiting member 11; when the door panel 2 is closed, the third limiting member 11 cooperates with the bent portion to prevent the door panel from continuing to slide, and at this time the magnet adsorbs the bent portion.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A sliding door, characterized in that: It comprises a door frame (1) and a door panel (2); The door panel (2) is provided with a first sliding member and a second sliding member respectively at both ends along its height direction; A first guide rail (3) slidably matched with a first sliding member, and a second guide rail (4) slidably matched with a second sliding member are mounted on the door frame (1); a door panel (2) capable of sliding left and right is slidably arranged between the first guide rail (3) and the second guide rail (4) via the first sliding member and the second sliding member; The first guide rail (3) comprises a support member (5) mounted on the door frame (1) and capable of moving up and down relative to the door panel (2); the support member is provided with a first stop member (6) and a second stop member (7) capable of moving closer to or farther away from the first stop member along the thickness direction of the door panel (2); the first stop member (6) and the second stop member (7) are arranged at intervals along the thickness direction of the door panel (2), and a gap is provided between the first stop member and the second stop member for sliding of the first sliding member.

2. A sliding door according to claim 1, characterized in that: When viewed along the sliding direction of the door panel (2), the second position-limiting member (7) is in a Z-shape; a first threaded member (8) is provided on the support member (5), and a second threaded member is threadedly connected to the first threaded member; A first elongated hole is formed at the bottom of the second limiting member (7) along the thickness direction of the door panel (2); the second limiting member (7) is slidably sleeved on the first threaded member (8) through the first elongated hole; the second limiting member (7) and the support member (5) are detachably connected via the first threaded member (8) and the second threaded member.

3. A sliding door according to claim 1, characterized in that: A third threaded member (9) is provided at a position where the support member (5) is provided on the door frame (1), and a fourth threaded member is threadedly connected to the third threaded member; A second elongated hole is formed on the support member (5) in the vertical direction, and the support member (5) is slidably mounted on the third threaded member (9) through the second elongated hole. The door frame (1) and the support member (5) are detachably connected via the third threaded member (9) and the fourth threaded member.

4. A sliding door according to claim 1, characterized in that: A third stopper (11) is extended outwardly from one side of the front of the door panel (2) and is capable of being fitted with the door frame (1). A magnet (12) is mounted on the third stopper and is used to adsorb the door panel (2) to the door frame (1).

5. A sliding door according to claim 4, characterized in that: A handle (10) is installed on the front side of the door panel (2) away from the third limiting member (11).

6. The sliding door according to claim 1, characterized in that: One end of the door panel (2) close to the first guide rail (3) extends into the gap of the first guide rail to form a first sliding member in a plate-like body.

7. The sliding door according to claim 1, characterized in that: The second sliding member is a pulley.

8. The sliding door according to claim 1, characterized in that: Stoppers are installed at both ends of the slideway of the first guide rail (3) and both ends of the slideway of the second guide rail (4).

9. An engineering machinery vehicle, characterized in that: A sliding door comprising the sliding door according to any one of claims 1 to 8.

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