A driver's cab side window switch device

Abstract

This utility model discloses a driver's cab side window opening and closing device, including a handle mechanism hinged to the side window and a limiting mechanism fixed to the driver's cab pillar. The side window rotates to open and close in the vertical direction. The handle mechanism has a sliding groove, with a first limiting part at one end near the hinge point of the groove and a second limiting part at the other end away from the hinge point. The limiting mechanism is disposed within the groove and is slidably connected to it. After the handle mechanism rotates in the vertical direction around the hinge point, the limiting mechanism moves along the groove into the second limiting part. After the handle mechanism rotates in the opposite direction around the hinge point back to its original vertical position, the limiting mechanism moves along the groove into the first limiting part. Through the coordinated design of the rotating side window opening and closing mechanism, the handle mechanism, and the limiting mechanism, airflow is ensured while achieving dual locking of the opening angle and closed state. This overcomes the sealing failure problem caused by window displacement under vibration, and the limiting mechanism prevents collision interference with the outside environment, improving safety.

Description

Technical Field

[0001] This utility model relates to a driver's cab side window switch device, belonging to the field of engineering machinery technology. Background Technology

[0002] Traditional cab ventilation systems often employ sliding window structures, the core challenge of which lies in balancing visibility requirements with structural load-bearing capacity. To meet airflow needs, the window requires a sliding panel that can move along a track. However, increasing the size of the sliding panel to achieve a better field of vision can lead to insufficient structural strength and stability due to the limited space and load-bearing structure of the cab. In existing technologies, the sliding panel is typically designed solely as a ventilation component, resulting in a limited actual field of vision for operators and impacting operational safety.

[0003] Such windows exhibit significant defects in dynamic operating environments: the gap structure of the track sliding mechanism is prone to unexpected displacement of the sliding plate under mechanical vibration, resulting in incomplete window closure. This phenomenon not only leads to deterioration of sealing performance and the risk of water leakage, but also, because the cab is often exposed to harsh conditions such as high dust and strong vibration, further exacerbates window deformation and component wear, creating a vicious cycle. Especially under extreme operating conditions, sealing failure can directly threaten the safety of equipment and personnel inside the cab, posing a major safety hazard. Summary of the Invention

[0004] Purpose of the invention: To solve the above-mentioned technical problems, this utility model provides a driver's cab side window opening and closing device. The device adopts an axially rotating side window for opening and closing, and is equipped with a handle mechanism and a limit mechanism to restrict the opening and closing of the side window.

[0005] Technical solution: A driver's cab side window opening and closing device includes a handle mechanism hinged to the side window and a limiting mechanism fixed to the driver's cab pillar. The side window rotates to open and close in a vertical direction. The handle mechanism is provided with a slide groove. A first limiting part is provided at one end near the hinge point of the slide groove, and a second limiting part is provided at the other end away from the hinge point of the slide groove. The limiting mechanism is disposed in the slide groove and is slidably connected to the slide groove. After the handle mechanism rotates in the vertical direction around the hinge point, the limiting mechanism enters the second limiting part along the slide groove. After the handle mechanism rotates in the opposite direction around the hinge point to return to its original vertical position, the limiting mechanism enters the first limiting part along the slide groove.

[0006] This invention features a sliding groove on the handle mechanism. When the side window is closed, the handle mechanism and the side window are aligned vertically. When the side window is open, an angle is formed between the handle mechanism and the side window. Specifically, when the handle mechanism is rotated to form this angle and the side window is pushed outward, the limiting mechanism moves along the sliding groove into the second limiting part, at which point the side window is at its maximum opening angle. When the side window needs to be closed, the handle mechanism is rotated in the opposite direction and the side window is pulled inward. The limiting mechanism disengages from the second limiting part and moves along the sliding groove into the first limiting part, causing the angle between the handle mechanism and the side window to gradually decrease and return to the state of being aligned with the side window. This design limits the opening angle of the side window, preventing collisions and interference between the side window and external objects. It also limits and locks the side window when it is closed, preventing it from shifting during vehicle operation in harsh environments, which could reduce its sealing and endanger the driver's safety. This design improves comfort while ensuring safety.

[0007] In a preferred embodiment, in order to install the handle mechanism, the handle mechanism includes a mounting base with upright plates on both sides and a handle body hinged to the upright plates. The slide groove is provided on the handle body on the side near the limiting mechanism, and the first limiting part and the second limiting part are provided in the slide groove.

[0008] In a preferred embodiment, in order to achieve the hinge between the handle mechanism and the side window, the handle body has a through mounting hole at one end near the hinge point, which is perpendicular to the bottom of the slide groove. It also includes a connecting bolt that passes through both the mounting hole and the upright plate. The two ends of the connecting bolt are detachably connected to the upright plate, and the handle body rotates around the connecting bolt through the mounting hole.

[0009] In a preferred embodiment, to facilitate the installation of the limiting mechanism, the mounting hole extends vertically and is provided with a through groove, the through groove is connected to the mounting hole, and at least two sets of springs are provided in the through groove, one end of the spring abuts against the outer circular surface of the connecting bolt, and the other end abuts against the bottom of the through groove.

[0010] After the spring is installed, the handle mechanism can rotate left and right in the mounting hole and through groove by compressing the spring on one side, so that the limiting mechanism and the slide can not make contact with each other. Then, the limiting mechanism is aligned with the bottom of the groove and placed into the slide. At the same time, the spring returns to its deformation, and the installation of the limiting mechanism is completed. Not only is the installation convenient, but it can also make the side window fully open, so that the staff can further observe the working environment carefully in a safe environment.

[0011] In a preferred embodiment, in order to lock the side window closed by the limiting mechanism, the first limiting part is an arc-shaped groove connected to the slide rail, the arc-shaped groove is curved away from the side window, and the two ends of the arc-shaped groove are collinear with the two ends of the slide rail.

[0012] Pull the side window inward, and the limiting mechanism enters the end of the arc groove along the slide. At the same time, the handle mechanism rotates in the opposite direction around the hinge point to return to the vertical direction, and the limiting mechanism enters the high point of the arc groove, that is, the point with the largest vertical distance from the collinear part of the arc groove, so as to lock the side window in the closed state and prevent the side window from failing to seal due to vibration.

[0013] In a preferred embodiment, to prevent the limiting mechanism from being under overpressure after entering the high point of the arc groove, thereby damaging the handle mechanism, a first bending plate is provided inward on the upright plate of the mounting base. When the handle body is in a vertical state, the first bending plate abuts against the groove wall.

[0014] As the handle mechanism is about to return to its original position, the spring is compressed away from the limiting mechanism. The handle mechanism is then rotated, and the first bent plate is aligned with the slide groove wall. The spring then returns to its original position, at which point the first bent plate abuts against the slide groove wall, thereby relieving the overpressure state of the limiting mechanism and extending the service life of the handle mechanism.

[0015] In a preferred embodiment, to facilitate the installation of the mounting base and the positioning of the tooling, a second bent plate is provided outward on the upright plate of the mounting base.

[0016] In a preferred embodiment, to limit the opening angle of the side window, the second limiting part is a limiting hole formed at the bottom of the vertical slide groove. After the limiting mechanism moves along the slide groove, it enters the limiting hole to limit the maximum angle of the side window, ensuring the safety of using the side window.

[0017] In a preferred embodiment, the limiting mechanism includes a support and a column connected to each other, and the column is slidably connected to the slide groove.

[0018] Beneficial Effects: This utility model, through the coordinated design of the rotating side window opening and closing mechanism, handle mechanism, and limiting mechanism, breaks through the linear movement mode of traditional sliding windows. While ensuring smooth airflow, it mechanically links the opening angle of the side window with the rotation angle of the handle, achieving dual locking of the opening angle and the closed state. This structure effectively overcomes the sealing failure problem caused by window displacement under vibration, significantly reduces the risk of water leakage and dust intrusion, avoids collisions and interference with the outside environment, and improves safety. A spring is used, and its compression enables the installation of the limiting mechanism, while also allowing the side window to be fully opened, facilitating closer observation of the work environment by staff in a safer setting. An arc-shaped groove and a first bending plate lock the side window in the closed state, while preventing overpressure loss from the limiting mechanism within the arc-shaped groove, extending the service life of the handle mechanism. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is an assembly drawing of the switching device of this utility model;

[0021] Figure 2 This is a schematic diagram of the handle mechanism of this utility model when it is in the vertical direction;

[0022] Figure 3 This is a schematic diagram of the handle mechanism of this utility model after rotation;

[0023] Figure 4 This is a structural diagram of the limiting mechanism of this utility model. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] like Figures 1-4 As shown, a driver's cab side window opening and closing device includes a handle mechanism 1 hinged to the side window and a limiting mechanism 2 fixed to the driver's cab pillar. The side window rotates to open and close in a vertical direction. The handle mechanism 1 is provided with a slide groove 3. A first limiting part 4 is provided at one end near the hinge point of the slide groove 3, and a second limiting part 5 is provided at the other end away from the hinge point of the slide groove 3. The limiting mechanism 2 is disposed in the slide groove 3 and is slidably connected to the slide groove 3. After the handle mechanism 1 rotates in the vertical direction around the hinge point, the limiting mechanism 2 enters the second limiting part 5 along the slide groove 3. After the handle mechanism 1 rotates in the opposite direction around the hinge point to return to its original vertical position, the limiting mechanism 2 enters the first limiting part 4 along the slide groove 3.

[0028] By setting a groove 3 on the handle mechanism 1, when the side window is closed, the handle mechanism 1 and the side window are aligned vertically; when the side window is open, the handle mechanism 1 and the side window form an angle. That is, when the handle mechanism 1 is rotated to form an angle with the side window and the side window is pushed outward, the limiting mechanism 2 will enter the second limiting part 5 along the groove 3, at which point the side window is at its maximum opening angle. When the side window needs to be closed, the handle mechanism 1 is rotated in the opposite direction and the side window is pulled inward. The limiting mechanism 2 will disengage from the second limiting part 5 and enter the first limiting part 4 along the groove 3, so that the angle between the handle mechanism 1 and the side window gradually decreases and returns to the state of being aligned with the side window. The opening angle of the side window is limited to prevent the side window from colliding and interfering with external objects. The side window is locked in the closed state to prevent the side window from shifting when the vehicle vibrates during operation in harsh environments, which would reduce the sealing performance and endanger the safety of the driver. This improves comfort while ensuring safety.

[0029] In order to install the handle mechanism 1, the handle mechanism 1 includes a mounting base 11 with upright plates 111 on both sides and a handle body 12 hinged to the upright plates 111. The slide groove 3 is provided on the handle body 12 near the side of the limiting mechanism 2, and the first limiting part 4 and the second limiting part 5 are provided in the slide groove 3.

[0030] In order to achieve the hinge between the handle mechanism 1 and the side window, the handle body 12 is provided with a mounting hole 121 through one end near the hinge point, which is perpendicular to the bottom of the slide groove 3. It also includes a connecting bolt 122 that passes through the mounting hole 121 and the upright plate 111. The two ends of the connecting bolt 122 are detachably connected to the upright plate 111. The handle body 12 rotates around the connecting bolt 122 through the mounting hole 121.

[0031] To facilitate the installation of the limiting mechanism 2, the mounting hole 121 extends vertically and is provided with a through groove 6. The through groove 6 is connected to the mounting hole 121. At least two sets of springs 7 are provided in the through groove 6. One end of the spring 7 abuts against the outer circular surface of the connecting bolt 122, and the other end abuts against the bottom of the through groove 6.

[0032] After spring 7 is installed, the handle mechanism 1 can rotate left and right within the mounting hole 121 and through groove 6 by compressing spring 7 on one side. This creates a distance between the limiting mechanism 2 and the slide groove 3, preventing them from contacting each other. Then, the limiting mechanism 2 is aligned with the bottom of the groove and placed into the slide groove 3. At the same time, spring 7 returns to its original deformation, completing the installation of the limiting mechanism 2. This not only facilitates installation but also allows the side window to be fully opened, enabling workers to observe the working environment more carefully in a safe environment. In this embodiment, to avoid wear on the connecting bolt 122 caused by spring 7, a protective sleeve can be installed on the connecting bolt. Example 1

[0033] In order to lock the side window closed by the limiting mechanism 2, the first limiting part 4 is an arc-shaped groove connected to the slide groove 3. The arc-shaped groove is curved away from the side window, and the two ends of the arc-shaped groove are collinear with the two ends of the slide groove 3.

[0034] Pull the side window inward, and the limiting mechanism 2 enters the end of the arc groove along the slide groove 3. At the same time, the handle mechanism 1 rotates in the opposite direction around the hinge point to return to the vertical direction, and the limiting mechanism 2 enters the high point of the arc groove, that is, the point with the largest vertical distance from the collinearity on the arc groove, so as to lock the side window in the closed state and prevent the side window from failing to seal due to vibration.

[0035] In order to prevent the limiting mechanism 2 from being under overpressure after entering the high point of the arc groove, which would damage the handle mechanism 1, a first bending plate 8 is provided on the upright plate 111 of the mounting base 11. When the handle body 12 is in a vertical state, the first bending plate 8 abuts against the groove wall of the slide groove 3.

[0036] When the handle mechanism 1 is about to return to its original state, the spring 7 is compressed in the direction away from the limiting mechanism 2, the handle mechanism 1 is rotated, and the first bending plate 8 is aligned with the groove wall of the slide 3. Then the spring 7 returns to its original state, and the first bending plate 8 abuts against the groove wall of the slide 3, thereby relieving the overpressure state of the limiting mechanism 2 and extending the service life of the handle mechanism 1. Example 2

[0037] To facilitate the installation of the mounting base 11 and the positioning of the tooling, a second bending plate 9 is provided outward on the upright plate 111 of the mounting base 11. Example 3

[0038] To limit the opening angle of the side window, the second limiting part 5 is a limiting hole opened at the bottom of the vertical slide groove 3. After the limiting mechanism 2 moves along the slide groove 3, it enters the limiting hole to limit the maximum angle of the side window and ensure the safety of using the side window.

[0039] The limiting mechanism 2 includes a support 21 and a support column 22 that are connected to each other, and the support column 22 is slidably connected to the slide groove 3.

[0040] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A driver's cab side window switch device, characterized in that: The device includes a handle mechanism (1) hinged to the side window and a limiting mechanism (2) fixed to the driver's cab pillar. The side window rotates to open and close in the vertical direction. The handle mechanism (1) is provided with a slide groove (3). A first limiting part (4) is provided at one end near the hinge point of the slide groove (3), and a second limiting part (5) is provided at the other end away from the hinge point of the slide groove (3). The limiting mechanism (2) is located in the slide groove (3) and is slidably connected to the slide groove (3). After the handle mechanism (1) rotates in the vertical direction around the hinge point, the limiting mechanism (2) enters the second limiting part (5) along the slide groove (3). After the handle mechanism (1) rotates in the opposite direction around the hinge point to return to the vertical direction, the limiting mechanism (2) enters the first limiting part (4) along the slide groove (3).

2. The cab side window switch device according to claim 1, characterized in that: The handle mechanism (1) includes a mounting base (11) with upright plates (111) on both sides and a handle body (12) hinged to the upright plates (111). The slide groove (3) is provided on the handle body (12) near the limiting mechanism (2). The first limiting part (4) and the second limiting part (5) are provided in the slide groove (3).

3. The cab side window switch device according to claim 2, characterized in that: The handle body (12) has a through mounting hole (121) at one end near the hinge point, which is perpendicular to the bottom of the groove (3). It also includes a connecting bolt (122) that passes through both the mounting hole (121) and the upright plate (111). The two ends of the connecting bolt (122) are detachably connected to the upright plate (111). The handle body (12) rotates around the connecting bolt (122) through the mounting hole (121).

4. The cab side window switch device according to claim 3, characterized in that: The mounting hole (121) extends vertically and is provided with a through groove (6). The through groove (6) and the mounting hole (121) are connected. At least two sets of springs (7) are provided in the through groove (6). One end of the spring (7) abuts against the outer surface of the connecting bolt (122), and the other end abuts against the bottom of the through groove (6).

5. The cab side window switch device according to claim 4, characterized in that: The first limiting part (4) is an arc-shaped groove connected to the slide (3). The arc-shaped groove is bent in the direction away from the side window, and the two ends of the arc-shaped groove are collinear with the two ends of the slide (3).

6. The cab side window switch device according to claim 5, characterized in that: The mounting base (11) has a first bending plate (8) on its upright plate (111) facing inward. When the handle body (12) is in a vertical state, the first bending plate (8) abuts against the groove wall of the slide (3).

7. The cab side window switch device according to claim 2, characterized in that: The mounting base (11) has a second bent plate (9) extending outward on the upright plate (111).

8. The cab side window switch device according to claim 1, characterized in that: The second limiting part (5) is a limiting hole opened at the bottom of the vertical slide (3).

9. The cab side window switch device according to claim 1, characterized in that: The limiting mechanism (2) includes a support (21) and a support column (22) connected to each other, and the support column (22) is slidably connected to the slide groove (3).

Images