Manual folding cab
By designing a split structure for the manually folding cab and adjusting the air pressure, the problem of cargo collision during monorail crane operation was solved, achieving cab stability and normal transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHI HONGHAN MASCH MFG CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-19
AI Technical Summary
During the movement of a monorail crane, if the cargo at both ends of the lifting beam is too long, it may collide with the bottom of the cab, or there may be debris in the travel path that obstructs the movement, affecting the stability of the cab and causing damage.
A manually folding cab was designed, which adopts a split structure of base frame and top frame. Through the cooperation of support cylinder and drive rod, the cab frame is folded by air pressure regulation to avoid collision and ensure stability.
The cab's split structure and air pressure regulation allow it to automatically fold when encountering obstacles, preventing cargo from contacting the cab and ensuring the normal transport of the monorail.
Smart Images

Figure CN224258134U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of monorail crane cab technology, specifically a manually folding cab. Background Technology
[0002] A monorail is a lifting and transporting device that runs along a single track. The function of a monorail is to achieve efficient, safe, and flexible transportation and handling of goods in space through its unique suspended track system and lifting mechanism.
[0003] The monorail operator's cab is a key component of the monorail locomotive. It is the core area where the operator controls the monorail, using various control levers, buttons, and displays to manage its operation, including running, stopping, lifting, and loading / unloading. The cab's control panel layout is logical, ensuring convenient operation for the operator.
[0004] During the movement of a monorail crane, if the cargo at both ends of the lifting beam is too long or thick, it may collide with the bottom of the cab in front, causing obstruction. In addition, if there are debris in the travel path, it will also obstruct the movement of the cab, thus affecting the stability of the cab. Furthermore, collisions can damage the cab and affect its normal use. Utility Model Content
[0005] The purpose of this utility model is to provide a manually folding cab to solve the problems mentioned in the background art, such as when the length of the cargo at both ends of the lifting beam is large, it will intrude into the cab, or there will be impurities on the travel path, which will collide with the bottom of the cab, thus obstructing the cab's movement and causing damage to the cab, affecting its normal use.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a manually folding cab, including a base frame, a top frame above the base frame, a connecting assembly for folding the cab inside the base frame, the connecting assembly including two support cylinders inside the base frame, a drive rod at one end of each of the two support cylinders, a protective sleeve outside the drive rod, a mounting seat inside the base frame, a sleeve at one end of the mounting seat, a through groove inside the mounting seat, and a connecting rod inside the through groove;
[0007] One end of the connecting rod is provided with an extension rod, and the other end of the extension rod is provided with two pistons. One of the pistons is provided with a connecting frame on one side, and a cavity is provided inside the connecting frame. A spring is provided inside the cavity.
[0008] Preferably, the top frame and the bottom frame are connected and rotatably connected at both ends by a fixed shaft, and the support cylinder array is located inside the bottom frame, with one end rotatably connected to the bottom frame by a fixed shaft.
[0009] Preferably, one end of the drive rod is embedded in the support cylinder, and the other end extends to be rotatably connected to the inner wall of the top frame. The sheath is fitted over the drive rod and connected to the outer wall of the support cylinder by bolts.
[0010] Preferably, the mounting base is connected to the inside of the base frame by bolts, the sleeve is located on one side of the mounting base and is rotatably connected to the mounting base by a connecting piece, one end of the connecting rod is located in the through groove, and the other end extends to the outside and connects to the sleeve.
[0011] Preferably, one end of the connecting rod is connected to the extension rod, and the other end of the extension rod passes through one of the pistons and is connected to the other piston. The two pistons are arranged in an array and are slidably connected to the inner wall of the through groove.
[0012] Preferably, the connecting frame is connected to one side of one of the pistons and sleeved on the outside of the extension rod. The extension rod passes through the cavity of the connecting frame, and the spring is located inside the cavity, with its two ends connected to the inner wall of the cavity and the spring, respectively.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. By designing the cab frame as a split structure, with the split docking area being rotatable, and by using a support cylinder to support the underframe and topframe, and by installing a protective sleeve on the drive rod of the support cylinder to prevent the drive rod from retracting, the stability of the cab frame is ensured during use.
[0015] 2. When there is an obstruction between the cargo and the cab, the sleeve is oscillating back and forth using a tool, causing the connecting rod and piston to slide within the mounting seat. Since the mounting seat is connected to the support cylinder, air pressure can be injected into or extracted from the support cylinder when the piston slides, thereby adjusting the air pressure level within the support cylinder. When folding is required, the air pressure can be extracted, causing the drive rod to retract into the support cylinder. The drive rod then folds the underframe towards the top frame, increasing the space at the bottom of the cab, preventing cargo from contacting the cab, and ensuring the normal transport of the monorail.
[0016] This utility model features a split cab structure supported by a support cylinder to ensure performance. When there is an obstruction to the cargo, the air pressure inside the support cylinder can be adjusted to retract it and pull the cab upwards to fold and retract, increasing the space under the cab, avoiding contact with the cargo, and ensuring the normal movement of the monorail crane cab. Attached Figure Description
[0017] Figure 1 This is an overall isometric view of the present invention;
[0018] Figure 2 This is an enlarged view of part A of this utility model;
[0019] Figure 3 This is a diagram showing the distribution area of the mounting base of this utility model;
[0020] Figure 4 This is an enlarged view of part B of the present invention;
[0021] Figure 5 This is a sectional view of the mounting base of this utility model;
[0022] Figure 6 This is an enlarged view of part C of this utility model.
[0023] In the diagram: 1. Base frame; 2. Top frame; 3. Support cylinder; 301. Drive rod; 302. Sheath; 4. Mounting base; 401. Sleeve; 5. Through groove; 6. Connecting rod; 601. Extension rod; 7. Piston; 8. Connecting frame; 801. Cavity; 802. Spring. 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] All devices in this application adopt conventional models in the prior art, and the control method is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field, so this application will not explain it in detail.
[0026] Please see the appendix Figure 1-4As shown, a manually folding cab includes a base frame 1 and a top frame 2 mounted on top of the base frame 1. The base frame 1 and top frame 2 are separate structures, and their connecting ends are connected by a fixed shaft, allowing for rotational folding between the base frame 1 and the top frame 2. The base frame 1 contains a connecting assembly for folding the cab. The connecting assembly includes two support cylinders 3 located inside the base frame 1. Air pressure is present inside the support cylinders 3, which supports a drive rod 301, causing it to extend and retract within the support cylinders 3. Each of the two support cylinders 3 has a drive rod 301 at one end, and one end of the drive rod 301 is connected to the top frame 2. Together with the support cylinders 3, the base frame 1 and the top frame 2 can be supported and separated, thereby ensuring the structural stability of the cab during use. A protective sleeve 3 is provided outside the drive rod 301. 02. The protective sleeve 302 can be fitted over the outside of the drive rod 301 when the cab is in normal use, thereby preventing the drive rod 301 from retracting into the support cylinder 3 and preventing deformation of the cab structure. The base frame 1 is provided with a mounting seat 4. One end of the mounting seat 4 is provided with a sleeve 401. The sleeve 401 allows the auxiliary rod tool to pass through when the cab is folded, making it easy to swing between the sleeve 401 and the mounting seat 4. The mounting seat 4 is provided with a through groove 5. The through groove 5 is provided with a connecting rod 6. The two ends of the connecting rod 6 are connected to the sleeve 401 and the piston 7 respectively. Thus, the swing of the sleeve 401 can drive the connecting rod 6 to slide back and forth in the through groove 5. The two support cylinders 3 are connected by a delivery pipe, and one of the support cylinders 3 is connected to the mounting seat 4 through the delivery pipe.
[0027] The top frame 2 is connected to the bottom frame 1, and the two ends are rotatably connected by a fixed shaft in the docking area. The support cylinder 3 array is located inside the bottom frame 1, and one end is rotatably connected to the bottom frame 1 by a fixed shaft. One end of the drive rod 301 is embedded in the support cylinder 3, and the other end extends to be rotatably connected to the inner wall of the top frame 2. The sleeve 302 is sleeved on the outside of the drive rod 301 and is connected to the outer wall of the support cylinder 3 by bolts. The mounting base 4 is connected to the inside of the bottom frame 1 by bolts. The sleeve 401 is located on one side of the mounting base 4 and is rotatably connected to the mounting base 4 by a connecting piece. One end of the connecting rod 6 is located in the through groove 5, and the other end extends to the outside and is connected to the sleeve 401.
[0028] In this embodiment: under normal conditions, gas can be injected into the support cylinder 3 to increase its internal air pressure. The air pressure pushes the drive rod 301 to extend out and separate the base frame 1 from the top frame 2 for support. The protective sleeve 302 is then fitted over the drive rod 301 to ensure the structural stability of the cab.
[0029] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figures 3-6One end of the connecting rod 6 is provided with an extension rod 601, which passes through one piston 7 and connects to the other piston 7. The other end of the extension rod 601 is provided with two pistons 7, which are separated from each other. When one piston 7 exceeds the through hole of the mounting base 4, the other piston 7 can be used to prevent gas leakage in the mounting base 4 and to place external gas between the two pistons 7. This can prevent internal gas leakage when gas is injected into the mounting base 4. One side of one piston 7 is provided with a connecting frame 8, which has a cavity 801 inside to facilitate the passage of the extension rod 601. A spring 802 is provided inside the cavity 801 to support the position between the connecting frame 8 and the extension rod 601, so that the two pistons 7 move synchronously and maintain their relative positions under normal thrust.
[0030] One end of the connecting rod 6 is connected to the extension rod 601, and the other end of the extension rod 601 passes through one of the pistons 7 and is connected to the other piston 7. The two pistons 7 are arranged in an array and are slidably connected to the inner wall of the through groove 5. The connecting frame 8 is connected to one side of one of the pistons 7 and is sleeved on the outside of the extension rod 601. The extension rod 601 passes through the cavity 801 of the connecting frame 8. The spring 802 is located inside the cavity 801, and its two ends are respectively connected to the inner wall of the cavity 801 and the spring 802.
[0031] In this embodiment: when there is an obstruction between the cab and the cargo, the protective sleeve 302 can be removed, and an auxiliary rod can be inserted into the sleeve 401 to drive the sleeve 401 to swing, causing the connecting rod 6 to move outward in the mounting seat 4. At the same time, one of the pistons 7 is pulled beyond the through hole area of the mounting seat 4. Simultaneously, the sleeve 401 swings to the same side again, so that the thrust of the connecting rod 6 exceeds the supporting force of the spring 802, causing the other piston 7 to also exceed the through hole area. Since the support cylinder 3 is connected to the mounting seat 4, the pressure inside the support cylinder 3 is released through the through hole of the mounting seat 4, thereby causing the drive rod 301 to retract into the support cylinder 3 and pulling the base frame 1 upward and folding and retracting with the top frame 2, increasing the space in the bottom area of the cab, ensuring that the cab can be transported normally and avoiding contact with the cargo.
[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A manually folding cab, comprising a base frame (1), a top frame (2) disposed above the base frame (1), and a connecting assembly for folding the cab disposed inside the base frame (1), characterized in that: The connecting assembly includes two support cylinders (3) disposed inside the base frame (1). Each of the two support cylinders (3) is provided with a drive rod (301) at one end. The drive rod (301) is provided with a protective sleeve (302) on the outside. The base frame (1) is provided with a mounting seat (4). One end of the mounting seat (4) is provided with a sleeve (401). The mounting seat (4) is provided with a through groove (5). The through groove (5) is provided with a connecting rod (6). One end of the connecting rod (6) is provided with an extension rod (601), and the other end of the extension rod (601) is provided with two pistons (7). One of the pistons (7) is provided with a connecting frame (8) on one side. The connecting frame (8) is provided with a cavity (801) inside, and a spring (802) is provided inside the cavity (801).
2. The manually folding cab according to claim 1, characterized in that: The top frame (2) is connected to the bottom frame (1) and is rotatably connected at both ends by a fixed shaft. The array of support cylinders (3) is located inside the bottom frame (1) and is rotatably connected at one end to the bottom frame (1) by a fixed shaft.
3. A manually folding cab according to claim 2, characterized in that: One end of the drive rod (301) is embedded in the support cylinder (3), and the other end extends to be rotatably connected to the inner wall of the top frame (2). The sleeve (302) is fitted on the outside of the drive rod (301) and is connected to the outer wall of the support cylinder (3) by bolts.
4. A manually folding cab according to claim 1, characterized in that: The mounting base (4) is connected to the inside of the base frame (1) by bolts. The sleeve (401) is located on one side of the mounting base (4) and is rotatably connected to the mounting base (4) by a connecting piece. One end of the connecting rod (6) is located in the through groove (5), and the other end extends to the outside and is connected to the sleeve (401).
5. A manually folding cab according to claim 1, characterized in that: One end of the connecting rod (6) is connected to the extension rod (601), and the other end of the extension rod (601) passes through one of the pistons (7) and is connected to the other piston (7). The two pistons (7) are arranged in an array and are slidably connected to the inner wall of the through groove (5).
6. A manually folding cab according to claim 1, characterized in that: The connecting frame (8) is connected to one side of one of the pistons (7) and sleeved on the outside of the extension rod (601). The extension rod (601) passes through the cavity (801) of the connecting frame (8). The spring (802) is located inside the cavity (801) and its two ends are respectively connected to the inner wall of the cavity (801) and the spring (802).