Access device and trolley hoist working system

Abstract

The present disclosure provides an access device and a trolley-type hoist working system, belonging to the technical field of water conservancy and hydropower engineering equipment, comprising a connecting assembly, a fixedly connected trolley frame and a cab, the trolley frame is used for supporting the trolley-type hoist, and the trolley frame is located above the cab; a basket is fixedly connected to the connecting assembly and is arranged at the doorway of the cab, the basket comprises a working platform; a straight ladder is fixed in the basket, the straight ladder extends in the vertical direction, the bottom end of the straight ladder is fixedly connected to the working platform, and the top end of the straight ladder leads to the trolley frame. The present disclosure improves the convenience and safety of accessing the cab.

Description

Technical Field

[0001] This disclosure relates to the field of water conservancy and hydropower engineering equipment technology, and in particular to an inlet / outlet device and a trolley-type gate hoist working system. Background Technology

[0002] Trolley-type gate hoists are key lifting equipment in water conservancy and hydropower projects, mainly used for raising, lowering, translating, and precisely controlling the position of gates. The operator's cab, as the core operating unit of the hoist, directly affects the equipment's operability and safety. The operator's cab is usually located at the bottom of the hoist, accessed via a downward-sloping ladder. Due to site constraints, the angle of the ladder is often too large, the passageway is narrow, and dedicated space must be reserved for the operator's cab, making installation inconvenient.

[0003] This traditional method of entry and exit has many drawbacks: First, the steep incline increases the safety risks for operators going up and down; second, the narrow passage is not conducive to rapid evacuation in emergencies; and third, the current incline cannot meet the needs of hoists of different sizes. Utility Model Content

[0004] To overcome the problems existing in related technologies, this specification provides an entry / exit device and a trolley-type gate hoist working system, which improves the convenience and safety of entering and exiting the driver's cab.

[0005] According to a first aspect of this disclosure, an access device is provided for accessing the driver's cab of a wheeled hoist configuration, comprising:

[0006] A connecting assembly is provided to securely connect the trolley frame and the driver's cab. The trolley frame is used to support the trolley-type gate hoist and is located above the driver's cab.

[0007] A suspended platform is fixedly connected to the connecting assembly and is located at the doorway of the driver's cab. The suspended platform includes a working platform.

[0008] A straight ladder is fixed inside the suspended basket. The straight ladder extends vertically, with its bottom end fixedly connected to the working platform and its top end leading to the trolley frame.

[0009] In some exemplary embodiments of this disclosure, the connection component includes:

[0010] The connecting frame includes a first crossbeam and a second crossbeam arranged opposite to each other. Both the first crossbeam and the second crossbeam extend horizontally and are axially symmetrical about the central axis of the driver's cab. The bottom ends of both the first crossbeam and the second crossbeam are located on the outer top surface of the driver's cab, and the top ends of both the first crossbeam and the second crossbeam are fixedly connected to the trolley frame.

[0011] In some exemplary embodiments of this disclosure, the extension lengths of the first beam and the second beam are adjustable.

[0012] In some exemplary embodiments of this disclosure, the first beam and the second beam are hollow structures.

[0013] In some exemplary embodiments of this disclosure, the connection component further includes:

[0014] A first connecting plate is fixedly connected to the first crossbeam or the second crossbeam, and the first connecting plate is provided with a first fixing hole;

[0015] The second connecting plate is fixedly connected to the driver's cab, and the second connecting plate is provided with a second fixing hole;

[0016] Fasteners are inserted into the first fixing hole and the second fixing hole to fix the first connecting plate and the second connecting plate.

[0017] In some exemplary embodiments disclosed herein, the suspended platform further includes:

[0018] The frame has an opening facing the driver's cab door. The frame is fixedly connected to the connecting assembly, and the work platform is located at the bottom of the frame.

[0019] In some exemplary embodiments of this disclosure, the frame includes a plurality of circumferentially spaced angle steels, the angle steels extending in a vertical direction, and

[0020] A crossbar connecting two adjacent angle steels;

[0021] Among the multiple angle steels, some of the angle steels are fixedly connected to the connecting assembly, and some of the angle steels are fixedly connected to the trolley frame.

[0022] In some exemplary embodiments of this disclosure, the extension length of the angle steel fixedly connected to the trolley frame is adjustable.

[0023] In some exemplary embodiments of this disclosure, the elevator includes:

[0024] The bottom end of the ladder body is fixedly connected to the working platform;

[0025] The first connector has one end fixedly connected to one side of the straight ladder body and the other end fixedly connected to the trolley frame;

[0026] The second connector has one end fixedly connected to one side of the straight ladder body and the other end fixedly connected to the suspended basket.

[0027] According to a second aspect of this disclosure, a trolley-type gate hoist working system is provided, including a trolley-type gate hoist and a trolley frame, wherein the trolley frame is used to support the trolley-type gate hoist, and the trolley-type gate hoist is equipped with a driver's cab.

[0028] The trolley-type gate hoist working system also includes the entry and exit device as described in the first aspect.

[0029] The technical solution provided in this disclosure may include the following beneficial effects:

[0030] The access device disclosed herein, through the design of the connecting components, the suspended platform, and the straight ladder, significantly improves the convenience, safety, and versatility of accessing the operator's cab of a trolley-type gate hoist. The straight ladder extends vertically, with its bottom end fixedly connected to the working platform of the suspended platform and its top end leading to the trolley frame. Compared to traditional inclined ladders, this vertical access method reduces space occupation, expands the operator's access passage, and allows operators to enter or leave the operator's cab more quickly and conveniently. This significantly improves work efficiency, especially when frequently entering and exiting the operator's cab for operation.

[0031] Meanwhile, the suspended platform is fixedly connected to the connecting components and set at the door of the driver's cab. The work platform provides operators with a stable standing platform, avoiding the inconvenience of walking in narrow passages and further improving the convenience and safety of entry and exit.

[0032] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0033] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0034] Figure 1 This is a schematic diagram of the working system structure of the trolley-type gate hoist in an exemplary embodiment of this disclosure.

[0035] Figure 2 This is a schematic diagram of the entry / exit device structure in an exemplary embodiment of this disclosure.

[0036] Figure 3 This is a side view of the entry / exit device in an exemplary embodiment of this disclosure.

[0037] Figure 4 This is a front view of the entry / exit device in an exemplary embodiment of this disclosure.

[0038] Figure 5 This is a schematic diagram of a straight ladder structure in an exemplary embodiment of this disclosure.

[0039] Figure 6This is a schematic diagram of the connection component structure in an exemplary embodiment of this disclosure.

[0040] Explanation of reference numerals in the attached figures

[0041] 100-Trolley-type gate hoist; 200-Driver's cab; 300-Trolley frame; 400-Connecting assembly; 410-First crossbeam; 420-Second crossbeam; 430-First connecting plate; 431-First fixing hole; 440-Second connecting plate; 450-Fastener; 500-Suspended basket; 510-Working platform; 520-Frame; 521-Angle steel; 522-Horizontal bar; 600-Straight ladder; 610-Straight ladder body; 620-First connecting piece; 630-Second connecting piece. Detailed Implementation

[0042] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0043] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0044] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.

[0045] In this disclosure, terms such as "perpendicular" and "equal" refer to perpendicularity and equality within the range of process error, not absolute perpendicularity and equality. Process error can be within ±10% or ±5%. For example, if the first direction and the second direction are perpendicular, it can be understood that the angle between the first direction and the second direction can be 90° ± 5°.

[0046] like Figures 1 to 6 As shown, this disclosure provides an access device for entering and exiting the driver's cab 200 configured with a trolley-type gate hoist 100, including a connecting assembly 400, a suspended basket 500, and a straight ladder 600. The connecting assembly 400 is fixedly connected to the trolley frame 300 and the driver's cab 200. The trolley frame 300 supports the trolley-type gate hoist 100 and is located above the driver's cab 200. The suspended basket 500 is fixedly connected to the connecting assembly 400 and is located at the entrance of the driver's cab 200. The suspended basket 500 includes a working platform 510. The straight ladder 600 is fixed inside the suspended basket 500, extends vertically, has its bottom end fixedly connected to the working platform 510, and its top end leads to the trolley frame 300.

[0047] The access device provided in this disclosure, through the design of the connecting component 400, the suspended basket 500, and the straight ladder 600, significantly improves the convenience, safety, and versatility of accessing the operator's cab 200 of the trolley-type gate hoist 100. The straight ladder 600 extends vertically, its bottom end fixedly connected to the working platform 510 of the suspended basket 500, and its top end leading to the trolley frame 300. Compared to traditional inclined ladders, this vertical access method reduces space occupation and expands the operator's access passage, allowing operators to enter or leave the operator's cab 200 more quickly and conveniently. This significantly improves work efficiency, especially when frequently entering and exiting the operator's cab 200 for operation.

[0048] Meanwhile, the suspended platform 500 is fixedly connected to the connecting assembly 400 and set at the door of the driver's cab 200. The work platform 510 provides the operator with a stable standing platform, avoiding the inconvenience of walking in narrow passages and further improving the convenience of entry and exit.

[0049] The various parts of the entry / exit device provided in the embodiments of this disclosure will now be described in detail with reference to the accompanying drawings:

[0050] This application proposes an access device including a connecting assembly 400, a suspended platform 500, and a straight ladder 600. The connecting assembly 400 fixes the trolley frame 300 to the driver's cab 200. The suspended platform 500 is fixed to the connecting assembly 400 and located at the door of the driver's cab 200. A work platform 510 is provided inside the suspended platform 500. The bottom end of the straight ladder 600 is fixed to the work platform 510, and the top end extends to the trolley frame 300.

[0051] like Figure 1 and Figure 2 As shown, in the trolley-type gate hoist working system, the trolley-type gate hoist 100 can be placed in the gate hoist room, and the trolley frame 300 can be used to support the trolley-type gate hoist 100 and the gate hoist room. The trolley frame 300 may also include a platform on which operators can walk.

[0052] The connecting component 400 is a supporting structure used to establish a rigid connection between the trolley frame 300 and the driver's cab 200, its function being to form a stable installation foundation. The suspended platform 500 is a load-bearing platform located at the entrance of the driver's cab 200, its function being to provide a safe working space. The vertical ladder 600 is a climbing structure extending vertically, its function being to establish a vertical passageway.

[0053] Specifically, the trolley frame 300 and the driver's cab 200 are rigidly connected via a connecting component 400. The suspended platform 500 is fixed to the connecting component 400 and has an opening facing the doorway of the driver's cab 200. The suspended platform 500 can be a semi-enclosed structure, with the unenclosed end serving as the opening. The working platform 510 serves as the bottom bearing surface of the suspended platform 500. A straight ladder 600 extends vertically from the working platform 510 to the trolley frame 300, allowing workers to move up and down. The connecting component 400 handles the load transfer between the trolley frame 300 and the driver's cab 200, the suspended platform 500 provides a stable working platform, and the vertical layout of the straight ladder 600 reduces space occupation.

[0054] For example, such as Figures 2 to 4 As shown, the connecting assembly 400 includes a connecting frame, which includes a first crossbeam 410 and a second crossbeam 420 arranged opposite to each other. Both the first crossbeam 410 and the second crossbeam 420 extend in the horizontal direction and are axially symmetrical about the central axis of the driver's cab 200. The bottom ends of the first crossbeam 410 and the second crossbeam 420 are both located on the outer top surface of the driver's cab 200, and the top ends of the first crossbeam 410 and the second crossbeam 420 are both fixedly connected to the trolley frame 300.

[0055] Among them, the first crossbeam 410 and the second crossbeam 420 refer to two supporting components arranged in the horizontal direction. They can be made of I-beams or rectangular steel pipes and are fixed between the top surface of the driver's cab 200 and the trolley frame 300 by welding or bolting to distribute the load transmitted by the trolley frame 300.

[0056] The axisymmetric arrangement refers to the mirror distribution of the first crossbeam 410 and the second crossbeam 420 with the central axis of the driver's cab 200 as the axis of symmetry. Specifically, the symmetrical layout can be achieved by adjusting the installation position of the two crossbeams to balance the forces on both sides and avoid structural deformation caused by eccentric loading. Furthermore, the first crossbeam 410 and the second crossbeam 420 can serve as the central support beams of the trolley frame 300, and the hoist can be set at different positions on the trolley frame 300 according to actual needs.

[0057] The outer top surface of the driver's cab 200 refers to the load-bearing surface at the top of the driver's cab 200. Specifically, it can be a welded steel plate. The load of the trolley frame 300 is transferred to the top of the driver's cab 200 through the connecting frame, so as to avoid putting additional pressure on the side wall of the driver's cab 200.

[0058] Specifically, the first crossbeam 410 and the second crossbeam 420 are horizontally fixed between the outer top surface of the driver's cab 200 and the trolley frame 300, forming a symmetrical support structure. The bottom ends of the two crossbeams are welded to the top of the driver's cab 200, while the top ends are connected to the trolley frame 300. Because the crossbeams extend horizontally and are symmetrically distributed, the load of the trolley frame 300 can be evenly transferred to the top of the driver's cab 200 through the two crossbeams, avoiding structural deformation of the driver's cab 200 due to unilateral stress. In addition, the symmetrical layout eliminates the need to adjust the original structure of the driver's cab 200 during installation, allowing for direct fixation using the top space.

[0059] Furthermore, the extension lengths of the first crossbeam 410 and the second crossbeam 420 are adjustable. Adjustable extension length means that the overall horizontal dimension of the crossbeams can be adjusted, which can be achieved using a telescopic structure or a segmented connection structure. The telescopic structure achieves length adjustment through a sliding rail inside the crossbeam and locking bolts, while the segmented connection structure allows for the assembly and adjustment of multiple beam segments via flanges and fasteners 450. This feature allows the crossbeams to be adapted to different sizes of trolley frames 300 or hoists, resolving installation mismatch issues caused by differences in equipment models.

[0060] Specifically, the connecting assembly 400 can be kept securely connected to the trolley frame 300 by adjusting the extension lengths of the first crossbeam 410 and the second crossbeam 420. For example, if the original length of the crossbeam is found to be insufficient during installation, the crossbeam can be stretched outward to the required length by loosening the locking bolts and then re-fixed; if the crossbeam is too long, the middle section of the segmented structure can be removed and reassembled. This adjustment process does not require replacing parts or welding, significantly improving installation efficiency.

[0061] This embodiment effectively solves the compatibility problem of connection components due to model differences in gate hoisting equipment, enabling rapid installation and precise matching of the connection structure. This design significantly reduces the customization requirements during equipment installation, shortens the construction cycle, and enhances the stability and safety of the connection structure.

[0062] Optionally, the first crossbeam 410 and the second crossbeam 420 are hollow structures. A hollow structure refers to a crossbeam with an internal hollow cavity, which can be implemented using square or rectangular tubing, with the hollow cavity extending along the length of the crossbeam. The hollow structure effectively reduces the weight of the crossbeam while ensuring its bending strength.

[0063] Specifically, since the two crossbeams need to support the loads of the suspended platform 500 and the straight ladder 600, and also connect the trolley frame 300 and the driver's cab 200, the hollow design reduces the overall weight by reducing material usage, making the two crossbeams easier to move and adjust during installation. For example, in the limited space between the outer top surface of the driver's cab 200 and the trolley frame 300, the hollow crossbeams can be fixed by welding or bolting, and their hollow internal areas can also be used to run cables or auxiliary support structures.

[0064] like Figure 2 and Figure 6 As shown, the connecting assembly 400 also includes a first connecting plate 430, a second connecting plate 440, and a fastener 450. The first connecting plate 430 is fixedly connected to the first crossbeam 410 or the second crossbeam 420, and the first connecting plate 430 is provided with a first fixing hole 431; the second connecting plate 440 is fixedly connected to the driver's cab 200, and the second connecting plate 440 is provided with a second fixing hole; the fastener 450 passes through the first fixing hole 431 and the second fixing hole, and fixes the first connecting plate 430 and the second connecting plate 440.

[0065] The first connecting plate 430 refers to a metal plate that is connected to the first crossbeam 410 or the second crossbeam 420. Specifically, it can be fixed to the side of the first crossbeam 410 or the second crossbeam 420 by welding or bolting. For example, it can be made of steel plate with a thickness of 8 mm, and its surface is machined with a first fixing hole 431 for docking with the second connecting plate 440.

[0066] The second connecting plate 440 refers to the metal plate that is connected to the outer top surface of the driver's cab 200. Specifically, it can be fixed to the top of the driver's cab 200 by pre-embedded bolts or welding. For example, it can be made of the same steel plate as the first connecting plate 430, and a second fixing hole can be machined in the corresponding position to achieve hole matching.

[0067] Among them, fastener 450 refers to the mechanical part used to connect the two connecting plates. Specifically, it can be a bolt and nut combination, for example, using a high-strength bolt to pass through the first fixing hole 431 and the second fixing hole and then applying a pre-tightening force to lock it.

[0068] For example, the suspended platform 500 also includes a frame 520 with an opening facing the door of the driver's cab 200. The frame 520 is fixedly connected to the connecting assembly 400, and the work platform 510 is located at the bottom of the frame 520.

[0069] The frame 520 is a three-dimensional support structure. The opening refers to the passageway on the frame 520 facing the driver's cab 200; it can be designed as an unobstructed rectangular area for personnel entry and exit. The work platform 510 is a load-bearing platform located at the bottom of the frame 520; it can be constructed from welded steel plates to form a planar structure to provide standing support.

[0070] Specifically, the frame 520 is fixed to the connecting assembly 400 and the trolley frame 300 to form a stable suspension structure. The design of the opening facing the door of the driver's cab 200 allows personnel to directly enter the interior of the frame 520 from the driver's cab 200. The work platform 510 serves as the bottom load-bearing surface of the frame 520, providing standing space for the operator.

[0071] Optionally, the frame 520 includes a plurality of circumferentially spaced angle steels 521, the angle steels 521 extending in a vertical direction, and a crossbar 522 connecting two adjacent angle steels 521; wherein, some of the angle steels 521 are fixedly connected to the connecting assembly 400, and some of the angle steels 521 are fixedly connected to the trolley frame 300.

[0072] Among them, angle steel 521 refers to a long strip steel component with an L-shaped cross-section, specifically hot-rolled equal-leg angle steel 521, whose two legs are of equal length and perpendicular to each other to form a right-angle structure. Crossbar 522 refers to a horizontally set connecting component, specifically made of round or square tube welded together, used to form a rigid connection between adjacent angle steels 521. Circumferential spacing distribution refers to the arrangement around the perimeter of the frame 520 at a preset interval, forming a support frame surrounding the working platform 510.

[0073] Specifically, the frame 520 forms a grid-like three-dimensional structure through angle steel 521 and crossbars 522. The vertically arranged angle steel 521 serves as the main support, forming a double fixing point with the connecting component 400 and the trolley frame 300. There can be four angle steels 521, which can form a cuboid or cube frame. Multiple crossbars 522 connect adjacent angle steels 521, together with the angle steels 521, to form the frame 520.

[0074] Furthermore, the extension length of the angle steel 521, which is fixedly connected to the trolley frame 300, is adjustable. Adjustable extension length means that the overall vertical dimension of the angle steel 521 can be adjusted, which can be achieved using a telescopic structure or a segmented connection structure. The telescopic structure allows length adjustment via a sliding rail on the angle steel 521 and locking bolts, while the segmented connection structure allows for the assembly and adjustment of multiple segments via flanges and fasteners 450. This feature allows the angle steel 521 to adapt to trolley frames 300 of different sizes, solving installation mismatch problems caused by differences in equipment models. Specifically, by adjusting the extension length of the angle steel 521, the suspended platform 500 can always maintain a stable connection with the trolley frame 300.

[0075] For example, such as Figure 2 and Figure 5As shown, the vertical ladder 600 includes a vertical ladder 600 body, a first connecting member 620, and a second connecting member 630. The bottom end of the vertical ladder 600 body is fixedly connected to the work platform 510, and the top end extends to the trolley frame 300; one end of the first connecting member 620 is fixedly connected to one side of the vertical ladder 600 body, and the other end is fixedly connected to the trolley frame 300; one end of the second connecting member 630 is fixedly connected to one side of the vertical ladder 600 body, and the other end is fixedly connected to the suspended platform 500.

[0076] The straight ladder 600 body refers to a ladder structure that extends vertically, with its bottom end fixed to the working platform 510 of the suspended basket 500 and its top end extending to the trolley frame 300. It can be implemented by welding or bolting to provide a vertical passageway.

[0077] The first connecting component 620 is a rigid part used to connect the body of the straight ladder 600 to the trolley frame 300. It can be fixed by welding angle steel 521 or steel pipe, and is used to enhance the stability between the straight ladder 600 and the trolley frame 300. The second connecting component 630 is a rigid part used to connect the body of the straight ladder 600 to the suspended platform 500. It can be fixed by welding steel plates, and is used to limit the horizontal displacement of the straight ladder 600.

[0078] like Figure 1 As shown, this disclosure also provides a trolley-type gate hoist working system, including a trolley-type gate hoist 100 and a trolley frame 300, the trolley frame 300 being used to support the trolley-type gate hoist 100, the trolley-type gate hoist 100 being equipped with a driver's cab 200; the trolley-type gate hoist working system also includes the entry and exit device in any of the above embodiments.

[0079] The trolley-type gate hoist 100 refers to the lifting equipment used in water conservancy and hydropower projects to control the raising, lowering, and translating of gates. It is equipped with an operator's cab 200, which requires access through a specific passage. The trolley frame 300 refers to the frame structure supporting the trolley-type gate hoist 100, which can be fixed above the operator's cab 200. The access device refers to the device for workers to pass between the trolley frame 300 and the operator's cab 200, including a suspended platform 500, a straight ladder 600, and a connecting assembly 400, used to provide a vertical personnel passageway.

[0080] The connecting component 400 fixes the trolley frame 300 to the outer top surface of the driver's cab 200. The suspended basket 500 is set at the entrance of the driver's cab 200 and forms a vertical passage with the straight ladder 600 through the work platform 510. The bottom end of the straight ladder 600 is fixed to the work platform 510, and the top end extends to the trolley frame 300. Personnel can directly enter the driver's cab 200 from the trolley frame 300 through the straight ladder 600 without relying on the traditional inclined ladder structure.

[0081] The specific structure of the entry and exit device can be referred to in the above embodiments, and will not be described in detail here.

[0082] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. An entry / exit device for entering / exiting the driver's cab of a wheeled gate hoist configuration, characterized in that, include: A connecting assembly is provided to securely connect the trolley frame and the driver's cab. The trolley frame is used to support the trolley-type gate hoist and is located above the driver's cab. A suspended platform is fixedly connected to the connecting assembly and is located at the doorway of the driver's cab. The suspended platform includes a working platform. A straight ladder is fixed inside the suspended basket. The straight ladder extends vertically, with its bottom end fixedly connected to the working platform and its top end leading to the trolley frame.

2. The entry / exit device according to claim 1, characterized in that, The connection component includes: The connecting frame includes a first crossbeam and a second crossbeam arranged opposite to each other. Both the first crossbeam and the second crossbeam extend horizontally and are axially symmetrical about the central axis of the driver's cab. The bottom ends of both the first crossbeam and the second crossbeam are located on the outer top surface of the driver's cab, and the top ends of both the first crossbeam and the second crossbeam are fixedly connected to the trolley frame.

3. The entry / exit device according to claim 2, characterized in that, The extension lengths of the first and second crossbeams are adjustable.

4. The entry / exit device according to claim 2, characterized in that, The first and second crossbeams are hollow structures.

5. The entry / exit device according to claim 2, characterized in that, The connection component also includes: A first connecting plate is fixedly connected to the first crossbeam or the second crossbeam, and the first connecting plate is provided with a first fixing hole; The second connecting plate is fixedly connected to the driver's cab, and the second connecting plate is provided with a second fixing hole; Fasteners are inserted into the first fixing hole and the second fixing hole to fix the first connecting plate and the second connecting plate.

6. The entry / exit device according to claim 1, characterized in that, The suspended platform also includes: The frame has an opening facing the driver's cab door. The frame is fixedly connected to the connecting assembly, and the work platform is located at the bottom of the frame.

7. The entry / exit device according to claim 6, characterized in that, The frame includes multiple circumferentially spaced angle steels, which extend vertically. A crossbar connecting two adjacent angle steels; Among the multiple angle steels, some of the angle steels are fixedly connected to the connecting assembly, and some of the angle steels are fixedly connected to the trolley frame.

8. The entry / exit device according to claim 7, characterized in that, The extension length of the angle steel fixedly connected to the trolley frame is adjustable.

9. The entry / exit device according to claim 1, characterized in that, The elevator includes: The bottom end of the ladder body is fixedly connected to the working platform; The first connector has one end fixedly connected to one side of the straight ladder body and the other end fixedly connected to the trolley frame; The second connector has one end fixedly connected to one side of the straight ladder body and the other end fixedly connected to the suspended basket.

10. A trolley-type gate hoist working system, characterized in that, It includes a trolley-type gate hoist and a trolley frame, the trolley frame being used to support the trolley-type gate hoist, and the trolley-type gate hoist being equipped with a driver's cab; The trolley-type gate hoist working system further includes the entry / exit device as described in any one of claims 1 to 9.

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