Rear window structure capable of being opened at multiple angles and forklift

Abstract

The rear window structure comprises an outer frame and a rear window rotatably connected to the outer frame, opening or closing of the rear window is achieved through rotation of the rear window relative to the outer frame, the rear window structure further comprises an adjusting swing arm, one end of the adjusting swing arm is rotatably connected to the rear window, a sliding lock part is arranged on the adjusting swing arm, and the sliding lock part is connected with the outer frame. A sliding lock matching part is fixedly arranged on the outer frame, the sliding lock part and the sliding lock matching part are connected in a sliding fit mode, and locking of opening of the rear window is formed by means of sliding locking of the sliding lock matching part on the sliding lock part. The rear window can be locked at different angles, the requirement of a driver for ventilation of the rear window is met, the rear window can be opened at a small angle, and potential safety hazards caused by the fact that the rear window exceeds the rear outline of the whole vehicle are avoided.

Description

Technical Field

[0001] The utility model relates to industrial handling vehicles, in particular to a rear window opening structure of a forklift. Background Art

[0002] Forklifts are industrial handling vehicles and are currently widely used in various sectors of the national economy such as stations, ports, airports, factories, warehouses, etc. To ensure that drivers can work comfortably in bad weather or environments, some forklifts are equipped with cabs.

[0003] To ensure the safety of drivers, fully enclosed cabs often have three channels, namely the left and right doors and the rear window. In actual use, the rear window of the cab often opens at a single angle or a large angle to meet the driver's escape needs from the rear window in case of emergency. However, in actual use, drivers often use the rear window as a ventilation opening. When this single-angle or large-angle opening rear window is opened, the rear window extends beyond the rear contour of the whole vehicle. In the case of turning and special situations, drivers and other vehicles on the road may not be aware of it, greatly increasing the probability of traffic accidents; more seriously, when the forklift overturns, the driver may be thrown out from the rear window opening position, thus triggering more serious accidents. If the rear window is closed, it cannot meet the driver's need to open the rear window for ventilation and cooling during driving. Summary of the Utility Model

[0004] Therefore, in view of the above problems, the utility model proposes a rear window structure with multi-angle opening and a forklift with the rear window structure with multi-angle opening.

[0005] The utility model is realized by adopting the following technical solutions:

[0006] The utility model proposes a rear window structure with multi-angle opening, including an outer frame and a rear window rotatably connected to the outer frame. The opening or closing of the rear window is realized by the rotation of the rear window relative to the outer frame. It also includes an adjusting swing arm. One end of the adjusting swing arm is rotatably connected to the rear window. A sliding lock part is arranged on the adjusting swing arm. A sliding lock matching part is fixedly arranged on the outer frame. The sliding lock part and the sliding lock matching part are slidably and cooperatively connected. The locking of the rear window opening is formed by the sliding locking of the sliding lock matching part on the sliding lock part.

[0007] Preferably, one of the sliding lock part and the sliding lock matching part is a sliding groove, and the other is a sliding pin. The sliding groove includes a main groove and at least one locking groove branched out from the side of the main groove. When the rear window is opened, the sliding pin falls into the locking groove to form the locking of the rear window at an opening angle.

[0008] Preferably, the direction of the gravitational moment for adjusting the swing arm is taken as the first direction, and the direction opposite to the first direction is taken as the second direction. The locking groove is located on one side of the main groove in the first direction or on the other side of the main groove in the second direction.

[0009] Preferably, the main groove is a straight groove, and the locking groove is a bent and extended "L"-shaped groove.

[0010] Preferably, one end of the adjusting swing arm is rotatably connected to the inner side of the rear window.

[0011] Preferably, a closing and locking mechanism is further included. The closing and locking mechanism is arranged on the rear window or the outer frame and is used for locking the rear window on the outer frame when the rear window is closed.

[0012] Preferably, an automatic roof-lifting mechanism is further included. One end of the automatic roof-lifting mechanism acts on the rear window, and the other end acts on the outer frame, and is used for automatically lifting the rear window.

[0013] Preferably, the automatic roof-lifting mechanism is a gas spring.

[0014] Preferably, a bracket is further included. The sliding lock fitting part is fixedly connected to the outer frame through the bracket, and a first spacer sleeve is sleeved on the sliding pin and is blocked between the bracket and the adjusting swing arm.

[0015] Preferably, a second spacer sleeve is further included. The second spacer sleeve is also sleeved on the sliding pin, and the second spacer sleeve and the first spacer sleeve are respectively arranged on both sides of the adjusting swing arm.

[0016] Based on the above rear window structure with multi-angle opening, the present invention further provides a forklift, which includes a cab, and the cab includes the rear window structure with multi-angle opening as described above.

[0017] The present invention has the following beneficial effects: The rear window structure with multi-angle opening of the present invention can realize the locking of the rear window at different angles, meet the driver's need for rear window ventilation, and also enable the rear window to be opened at a smaller angle, avoiding potential safety hazards caused by the rear window exceeding the rear contour of the whole vehicle. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the cab of the forklift in the embodiment;

[0019] Figure 2 is a schematic diagram of the rear window part in the embodiment;

[0020] Figure 3 is Figure 2 a partial enlarged view of A in

[0021] Figure 4 is a schematic diagram of the adjusting swing arm in the embodiment;

[0022] Figure 5 It is a schematic diagram of the sliding lock fitting part and the bracket in the embodiment;

[0023] Figure 6 It is a schematic diagram of the adjusting swing arm and the sliding lock fitting part assembled together in the embodiment. Detailed implementation manners

[0024] To further illustrate each embodiment, the present invention provides drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be combined with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0025] Now, the present invention will be further described in conjunction with the drawings and the specific implementation manners.

[0026] Refer to Figures 1-6 As shown, as a preferred embodiment of the present invention, a forklift is provided, which includes a cab 10. The cab 10 further includes a left door part, a right door part, a front window part, and a rear window part 20. The rear window part 20 is a rear window structure that can be opened at multiple angles, including an outer frame 1 and a rear window 2 rotatably connected to the outer frame 1. In this embodiment, the rear window 2 is rotatably connected to the upper end of the outer frame 1, and the opening or closing of the rear window 2 is realized by the rotation of the rear window 2 relative to the outer frame 1.

[0027] One end of the adjusting swing arm 3 is rotatably connected to the rear window 2. The adjusting swing arm 3 in this embodiment is a strip-shaped plate structure. A sliding lock part 30 is provided on the adjusting swing arm 3. The sliding lock part 30 is implemented as a sliding groove in this embodiment, specifically including a main groove 31 and a locking groove 32 branched out from the side of the main groove 31. In this embodiment, the main groove 31 is a straight groove extending along the length direction of the adjusting swing arm 3, and the locking groove 32 is a bent "L"-shaped groove. In other embodiments, the locking groove 32 can also be a straight groove perpendicular to the main groove 31, or the locking groove 32 is an arc-shaped groove. However, the "L"-shaped locking groove 32 in this embodiment can achieve a better locking effect.

[0028] A sliding lock engaging portion 4 is fixedly provided on the outer frame 1. In this embodiment, the sliding lock engaging portion 4 is a sliding pin. The sliding lock portion 30 and the sliding lock engaging portion 4 are slidably engaged and connected. When the rear window 2 rotates relative to the outer frame 1, the sliding lock engaging portion 4 slides in the sliding lock portion 30, and different angles of the rear window 2 are restricted according to different positions of the sliding lock engaging portion 4 in the sliding lock portion 30. Among them, the two ends of the main groove 31 respectively restrict the maximum opening angle and the minimum opening angle of the rear window 2. During the opening process of the rear window 2, once the sliding lock engaging portion 4 as a sliding pin falls into the locking groove 32, the rear window 2 is locked at an angle during the middle process of opening. A plurality of locking grooves 32 can be provided to enable the rear window 2 to be locked at different angles, meeting the driver's need for ventilation at the rear window portion 20, and also allowing the rear window 2 to be opened at a smaller angle, avoiding potential safety hazards caused by the rear window 2 exceeding the rear contour of the whole vehicle.

[0029] Since one end of the adjusting swing arm 3 is rotatably connected to the rear window 2, when the rear window 2 is opened, under the action of the gravity of the adjusting swing arm 3 itself, there will be a gravity moment that causes the adjusting swing arm 3 to swing downward, making the sliding lock engaging portion 4 abut against the upper side of the main groove 31. As Figure 4 , it is defined that the direction of the gravity moment of the adjusting swing arm 3 is the first direction F1, and the direction opposite to the first direction F1 is the second direction F2. In this embodiment, the locking groove 32 is located on one side of the main groove 31 in the first direction F1 (that is, the lower side of the main groove 31). With this setting, when the rear window 2 is opened, the sliding lock engaging portion 4 can slide along the upper side of the main groove 31, and the rear window 2 can be directly opened to the maximum angle without obstruction. During the opening process of the rear window 2, manually pulling the adjusting swing arm 3 can make the sliding lock engaging portion 4 fall into the locking groove 32.

[0030] In other embodiments, the locking groove 32 can also be located on one side of the main groove 31 in the second direction F2 (that is, the upper side of the main groove 31). With this setting, when the rear window 2 is opened and the sliding lock engaging portion 4 slides along the upper side of the main groove 31, the sliding lock engaging portion 4 can automatically fall into the first locking groove 32, locking the rear window 2 at an intermediate angle.

[0031] Whether the locking groove 32 is located on one side of the main groove 31 in the first direction F1 or on the other side of the main groove 31 in the second direction F2, when it is necessary to close the rear window 2, due to the rotation of the adjusting swing arm 3 itself, the sliding lock engaging portion 4 in the locking groove 32 can be guided to the main groove 31. Based on this, guiding structures such as rounded corners and slopes can also be provided at the connection position of the main groove 31 and the locking groove 32.

[0032] In this embodiment, the sliding lock part 30 is a chute, and the sliding lock mating part 4 is a sliding pin. In other embodiments, the sliding lock part 30 can be set as the sliding pin and the sliding lock mating part 4 can be set as the chute conversely. As long as the sliding lock part 30 and the sliding lock mating part 4 are slidably and matingly connected, and the sliding lock of the sliding lock mating part 4 forms the locking for the opening of the rear window 2, in other embodiments, the sliding pin can also be replaced with a sliding block or a sliding ball head that slides in the chute.

[0033] In this embodiment, one end of the adjusting swing arm 3 is rotatably connected to the inner side of the rear window 2 so as not to affect the closing of the rear window 2. A handle 6 is provided on the inner side of the rear window 2 for the driver to open or close the rear window 2 in the cab 10. A closing and locking mechanism is also provided on the handle 6 for locking the rear window 2 to the outer frame 1 when the rear window 2 is closed. The closing and locking mechanism can also be provided on the outer frame 1. In the locked state of the rear window 2, people outside the cab 10 cannot continue to open the rear window 2 from the outside, protecting the safety inside the cab 10.

[0034] Moreover, this embodiment is also provided with an automatic roof-lifting mechanism 5, and the automatic roof-lifting mechanism 5 is a gas spring in this embodiment. One end of the automatic roof-lifting mechanism 5 acts on the rear window 2 and the other end acts on the outer frame 1 for automatically lifting the rear window 2. The automatic roof-lifting mechanism 5 can assist in opening the rear window 2 and keep the rear window 2 stationary at an angle. The automatic roof-lifting mechanism 5 can also be other elastic members, such as a hydraulic spring or a common spring.

[0035] Such as Figure 5 and Figure 6 , the sliding lock mating part 4 is fixedly connected to the outer frame 1 through a bracket 7. A first spacer 8 that separates the bracket 7 and the adjusting swing arm 3 is sleeved on the sliding lock mating part 4 to avoid friction between the bracket 7 and the adjusting swing arm 3, reduce the running noise and improve the sliding smoothness. In addition, a second spacer 9 is also sleeved on the sliding lock mating part 4, and the second spacer 9 and the first spacer 8 are respectively arranged on both sides of the adjusting swing arm 3. The second spacer 9 can play a limiting role to prevent the adjusting swing arm 3 from falling off after the connection becomes loose.

[0036] Although the present invention is specifically shown and introduced in combination with the preferred embodiments, those skilled in the art should understand that various changes made to the present invention in terms of form and details without departing from the spirit and scope of the present invention defined by the appended claims all fall within the protection scope of the present invention.

Claims

1. A rear window structure capable of opening at multiple angles, comprising an outer frame and a rear window rotatably connected to the outer frame, wherein the rear window can be opened or closed by rotating the rear window relative to the outer frame, wherein: It also includes an adjusting swing arm, one end of which can be rotatably connected to the rear window, a sliding lock portion is provided on the adjusting swing arm, a sliding lock matching portion is fixedly provided on the outer frame, the sliding lock portion and the sliding lock matching portion are slidably matched and connected, and the sliding lock portion is locked by means of the sliding lock matching portion to lock the rear window open.

2. The multi-angle opening rear window structure according to claim 1, characterized in that: One of the sliding lock part and the sliding lock matching part is a sliding groove, and the other is a sliding pin. The sliding groove includes a main groove and at least one locking groove branching off from the side of the main groove. When the rear window is opened, the sliding pin falls into the locking groove to lock the rear window at an opening angle.

3. The multi-angle opening rear window structure according to claim 2, characterized in that: The direction of the gravity moment of the adjusting swing arm is taken as the first direction, the direction opposite to the first direction is taken as the second direction, and the locking groove is located on one side of the main groove in the first direction or on the other side of the main groove in the second direction.

4. The multi-angle opening rear window structure according to claim 2, characterized in that: The main groove is a straight groove, and the locking groove is a bent and extended "L"-shaped groove.

5. The multi-angle opening rear window structure according to claim 1, characterized in that: One end of the adjusting swing arm is rotatably connected to the inner side of the rear window.

6. The multi-angle opening rear window structure according to claim 1, characterized in that: It also includes a closing and locking mechanism, which is arranged on the rear window or the outer frame and is used to lock the rear window on the outer frame when the rear window is closed.

7. The multi-angle opening rear window structure according to claim 1, characterized in that: It also includes an automatic roof opening mechanism, one end of which acts on the rear window and the other end of which acts on the outer frame to automatically open the rear window.

8. The multi-angle opening rear window structure according to claim 2, characterized in that: It also includes a bracket, through which the sliding lock matching part is fixedly connected to the outer frame, and a first spacer sleeve is sleeved on the sliding pin to block between the bracket and the adjusting swing arm.

9. The multi-angle opening rear window structure according to claim 8, characterized in that: It also includes a second spacer sleeve, which is also sleeved on the sliding pin, and the second spacer sleeve and the first spacer sleeve are respectively arranged on both sides of the adjusting swing arm.

10. A forklift truck, including a cab, characterized in that: The cab includes a multi-angle opening rear window structure as described in any one of claims 1-9.

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