Crawling ladder device, crane and operation machine

Abstract

The utility model relates to the technical field of operation machinery, and discloses a ladder stand device, a crane and operation machinery. The first crawling ladder assembly is arranged on the mounting seat in a swinging manner; the first crawling ladder assembly and the locking assembly are arranged on the mounting base, the first crawling ladder assembly can swing, and when an operator needs to control the operation table, the first crawling ladder assembly is swung downwards to be in an unfolded state and is fixed through the locking assembly. At the moment, the first crawling ladder assembly is obliquely arranged relative to the ground, so that an operator can easily climb upwards along the first crawling ladder assembly, and when the first crawling ladder assembly is not used, the first crawling ladder assembly is swung upwards to be in a storage state and is fixed through the locking assembly; at the moment, the space occupied by the first ladder stand assembly is small, and the width size of the vehicle body cannot be increased.

Description

Technical Field

[0001] The utility model relates to the technical field of operating machinery, in particular to a ladder device, a crane and an operating machinery. Background Art

[0002] A truck-mounted crane transport vehicle is a type of operating machinery that uses a hydraulic lifting and telescopic system to achieve the lifting, rotation and hoisting of goods. A truck-mounted crane transport vehicle is generally composed of a truck chassis, a cargo compartment, a crane, etc. Truck-mounted crane transport vehicles are of great significance in reducing labor intensity, saving manpower, reducing logistics costs, and speeding up construction.

[0003] At present, in order to facilitate operators to operate the crane of a truck-mounted crane transport vehicle, a ladder is usually set on one side of the crane. In order to prevent the ladder from affecting the width of the vehicle body, the ladder can usually only be arranged vertically. This form of ladder is perpendicular to the ground, and the operator has poor comfort and physical sensation when using it, and it is difficult to climb quickly and effectively. Therefore, the existing truck-mounted crane transport vehicle crane ladder has the problem of poor convenience of use. Utility Model Content

[0004] In view of this, the utility model provides a ladder device, a crane and an operating machine to solve the problem that the existing crane ladder is inconvenient to use.

[0005] In a first aspect, the utility model provides a ladder device, comprising: a mounting seat, suitable for being connected to an operating table or a base of a vehicle-mounted crane transport vehicle; a first ladder assembly, swingably arranged on the mounting seat, the first ladder assembly having a storage state arranged away from the ground, and a deployed state arranged close to the ground and inclined relative to the ground; a locking assembly, arranged on the mounting seat and suitable for cooperating with the first ladder assembly, the locking assembly having a locking state that fixes the first ladder assembly relative to the mounting seat, and an unlocking state that allows the first ladder assembly to swing.

[0006] Beneficial effect: a first ladder assembly and a locking assembly are arranged on the mounting seat; the first ladder assembly can swing, so that it can switch between the storage state and the deployed state conveniently and quickly; when the operator needs to operate the operating table, the first ladder assembly is swung downward to the deployed state and fixed by the locking assembly; since the first ladder assembly is tilted relative to the ground at this time, the operator can easily climb upward along the first ladder assembly; when the first ladder assembly is not needed, the first ladder assembly is swung upward to the storage state and fixed by the locking assembly; at this time, the space occupied by the first ladder assembly is small and the width dimension of the vehicle body will not be increased, thereby effectively solving the problem of poor convenience of use of existing crane ladders.

[0007] In an optional embodiment, the locking assembly includes a mounting bracket and a locking structure, the mounting bracket is fixedly disposed on the mounting seat and is located on one side of the first ladder assembly, the locking structure is movably disposed on the mounting bracket, and the first ladder assembly has at least one mating structure that cooperates with the locking structure.

[0008] Beneficial effects: The structure is simple and reliable, and it is easy to process and manufacture.

[0009] In an optional embodiment, the locking structure includes a locking rod, which is movably arranged on the mounting bracket along the width direction of the first ladder assembly. The first ladder assembly has multiple matching structures, which are locking holes for the locking rod to pass through.

[0010] Beneficial effects: The structure is simple and reliable. The position of the first ladder assembly can be fixed by extending and retracting the locking rod to cooperate with the corresponding locking hole, and the operator can quickly perform the unlocking operation.

[0011] In an optional embodiment, the mounting bracket has a mounting hole for the locking rod to pass through, and the locking structure also includes an operating rod, which is fixedly arranged at one end of the locking rod away from the locking assembly.

[0012] Beneficial effect: The locking rod is inserted into the mounting hole, which can effectively limit the radial movement of the locking rod and also effectively protect the locking rod, preventing the locking rod from being exposed to the environment for a long time and being corroded and failing prematurely.

[0013] In an optional embodiment, the locking assembly also includes an elastic member and a limiting member. The locking structure cooperates with the mounting bracket through the elastic member. The limiting member is arranged on the mounting bracket and is located on one side of the locking structure. When the locking structure compresses the elastic member and cooperates with the limiting member, the locking assembly is in an unlocked state. When the locking structure is reset by the elastic member and cooperates with the corresponding cooperating structure, the locking assembly is in a locked state.

[0014] Beneficial effects: The operation method is simple and quick. Through the effects of the elastic member and the limit member, the reliability of the locking structure when locked is greatly improved, and the convenience of the locking and unlocking process of the locking structure is also improved.

[0015] In an optional embodiment, the first ladder assembly includes a first ladder body and a connecting frame, the first ladder body is connected to the connecting frame, the connecting frame is hinged to the mounting seat through a hinge shaft, and the matching structure is located on the connecting frame.

[0016] Beneficial effect: Since the locking structure is mainly coordinated with the connecting frame, the first ladder body can flexibly change its own structure without considering the setting position of the coordination structure, thereby improving the flexibility of the first ladder assembly design.

[0017] In an optional embodiment, the ladder device further comprises a second ladder assembly disposed upwardly, and the second ladder assembly is disposed on a side of the mounting seat opposite to the first ladder assembly.

[0018] Beneficial effect: The second ladder assembly and the first ladder assembly together form a multi-level ladder structure, which can effectively make up for the application scenario when the height of the first ladder assembly is insufficient.

[0019] In an optional embodiment, the ladder device further includes a handrail structure, which is disposed on the mounting seat and is disposed around the second ladder assembly.

[0020] Beneficial effect: The handrail structure can be used for operators to grasp when climbing upwards, thereby improving the safety of the operator's climbing process.

[0021] In a second aspect, the utility model further provides a crane, which comprises: a machine body; and the above-mentioned ladder climbing device, which is arranged on the machine body.

[0022] In a third aspect, the utility model further provides an operating machine, which includes: the above-mentioned ladder device, or the above-mentioned crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a three-dimensional schematic diagram of a first ladder component of a ladder device in an embodiment of the utility model in an unfolded state;

[0025] Figure 2 for Figure 1 A three-dimensional schematic diagram of the first ladder assembly of the ladder device shown in the stowed state;

[0026] Figure 3 for Figure 1 A schematic structural diagram of a first ladder assembly of a ladder device shown;

[0027] Figure 4 for Figure 1 A cross-sectional view of the locking assembly of the ladder climbing device shown in a locked state;

[0028] Figure 5 for Figure 1 A cross-sectional view of the locking assembly of the ladder climbing device shown in an unlocked state;

[0029] Figure 6 for Figure 1 The ladder device shown is a schematic diagram of a second ladder assembly and a handrail structure installed;

[0030] Figure 7 for Figure 2 The ladder device shown is a schematic diagram of a second ladder assembly and a handrail structure installed.

[0031] Description of reference numerals:

[0032] 1. Mounting seat; 101. Articulated shaft; 2. First ladder assembly; 201. Locking hole; 202. First ladder body; 203. Connecting frame; 204. Articulated hole; 3. Locking assembly; 301. Mounting bracket; 3011. Mounting hole; 302. Locking rod; 303. Operating rod; 304. Elastic member; 305. Limiting member; 4. Second ladder assembly; 5. Handrail structure. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0034] Combine the following Figures 1 to 7 , describing an embodiment of the utility model.

[0035] In the related art, the truck-mounted crane on the truck-mounted crane transport vehicle usually has a high or middle operating platform, which is usually installed on the turntable of the truck-mounted crane. In order to facilitate the operator to reach the operating position of the operating platform, a ladder leading to the operating platform is usually installed on the truck-mounted crane. The ladder in the related art is usually fixed and cannot be stored or adjusted in angle.

[0036] According to an embodiment of the utility model, on the one hand, a ladder device is provided, including: a mounting seat 1, a first ladder assembly 2 and a locking assembly 3, the mounting seat 1 is suitable for being connected to an operating table or a base of a vehicle-mounted lifting and transporting vehicle, the first ladder assembly 2 is swingably arranged on the mounting seat 1, the first ladder assembly 2 has a storage state arranged away from the ground, and an unfolded state arranged close to the ground and inclined relative to the ground, the locking assembly 3 is arranged on the mounting seat 1 and is suitable for cooperating with the first ladder assembly 2, the locking assembly 3 has a locking state that fixes the first ladder assembly 2 relative to the mounting seat 1, and an unlocking state that allows the first ladder assembly 2 to swing.

[0037] The ladder device of this embodiment is applied, and a first ladder assembly 2 and a locking assembly 3 are arranged on the mounting seat 1. The first ladder assembly 2 can swing, so it can be conveniently and quickly switched between the storage state and the deployed state. When the operator needs to operate the operating table, the first ladder assembly 2 is swung downward to the deployed state and fixed by the locking assembly 3. Since the first ladder assembly 2 is tilted relative to the ground at this time, the operator can easily climb upward along the first ladder assembly 2. When the first ladder assembly 2 is not needed, the first ladder assembly 2 is swung upward to the storage state and fixed by the locking assembly 3. At this time, the space occupied by the first ladder assembly 2 is small and the width of the vehicle body will not be increased, which effectively solves the problem of poor convenience of use of the existing crane ladder.

[0038] Specifically, Figure 1 and Figure 2 As shown, Figure 1 The first ladder assembly 2 is in an unfolded state, Figure 2 The first ladder assembly 2 is in a stored state.

[0039] Among them, it should be noted that Figure 1 and Figure 2 It is only an illustration of one state of the first ladder assembly 2, and does not strictly limit the angle between the extension line of the first ladder assembly 2 and the ground when the first ladder assembly 2 is in the unfolded state or the retracted state.

[0040] In this embodiment, the locking assembly 3 includes a mounting bracket 301 and a locking structure. The mounting bracket 301 is fixedly arranged on the mounting seat 1 and is located on one side of the first ladder assembly 2. The locking structure is movably arranged on the mounting bracket 301. The first ladder assembly 2 has at least one mating structure that cooperates with the locking structure. The structure is simple and reliable, and is easy to process and manufacture.

[0041] Specifically, Figure 1 as well as Figure 2 As shown, the first ladder assembly 2 is hinged to the mounting bracket 301 via a hinge shaft 101 , and a hinge hole 204 cooperating with the hinge shaft 101 is correspondingly provided on the first ladder assembly 2 .

[0042] Among them, in the ladder device of this embodiment, there is no limitation on the cooperation mode of the locking component 3 and the first ladder component 2 and the number of cooperation structures. The locking component 3 can cooperate with the position of the first ladder component 2 close to the hinge hole 204. At this time, only one cooperation structure needs to be set on the first ladder component 2. The locking component 3 can also cooperate with the position where the first ladder component 2 has a larger swing amplitude. At this time, multiple cooperation structures at different positions need to be set on the first ladder component 2. The locking component 3 only needs to be able to fix the first ladder component 2 at the desired position.

[0043] In addition, there is no limitation on the movement mode of the locking structure on the mounting bracket 301. The locking structure can be engaged with or separated from the matching structure by translation, or it can be engaged with or separated from the matching structure by swinging. The specific form of the locking structure can be a positioning pin that can be plugged in for positioning, or it can be a locking swing arm that is swung and fixed, and the selection can be made according to the convenience of use.

[0044] Furthermore, the mounting bracket 301 is detachably connected to the mounting base 1 via a fastening component.

[0045] In this embodiment, the locking structure includes a locking rod 302, which is movably arranged on the mounting bracket 301 along the width direction of the first ladder assembly 2. The number of the matching structures of the first ladder assembly 2 is multiple, and the matching structure is a locking hole 201 for the locking rod 302 to pass through. The structure is simple and reliable. The position of the first ladder assembly 2 can be fixed by telescoping the locking rod 302 and matching it with the corresponding locking hole 201, and the operator can quickly perform the unlocking operation.

[0046] Among them, the width of the first ladder assembly 2 refers to Figure 1 The arrow in the middle points to the “horizontal” direction.

[0047] Specifically, Figure 3 As shown, two locking holes 201 are arranged on both sides of the hinge hole 204 to respectively limit the two swinging states of the first ladder assembly 2 relative to the bottom surface.

[0048] In this embodiment, the mounting bracket 301 has a mounting hole 3011 for the locking rod 302 to pass through, and the locking structure also includes an operating rod 303. The operating rod 303 is fixedly arranged at the end of the locking rod 302 away from the locking assembly 3. The locking rod 302 is passed through the mounting hole 3011, which can effectively limit the radial movement of the locking rod 302 and also effectively protect the locking rod 302 to prevent the locking rod 302 from being exposed to the environment for a long time and being corroded and failing prematurely.

[0049] It can be understood that, as an alternative embodiment, the mounting hole 3011 can also be replaced by a groove-shaped structure or a plurality of spaced-apart annular structures, as long as the radial movement of the locking rod 302 can be limited and the axial movement of the locking rod 302 can be guided.

[0050] In this embodiment, the locking assembly 3 also includes an elastic member 304 and a limiting member 305. The locking structure cooperates with the mounting bracket 301 through the elastic member 304. The limiting member 305 is arranged on the mounting bracket 301 and is located on one side of the locking structure. When the locking structure compresses the elastic member 304 and cooperates with the limiting member 305, the locking assembly 3 is in an unlocked state. When the locking structure is reset by the elastic member 304 and cooperates with the corresponding cooperating structure, the locking assembly 3 is in a locked state. The operation method is simple and fast. Through the action of the elastic member 304 and the limiting member 305, the reliability of the locking structure when locked is greatly improved, and the convenience of the locking and unlocking process of the locking structure is also improved.

[0051] Specifically, Figure 4 and Figure 5 When the locking lever 303 is in the unlocked state, the operator can pull the locking lever 303 away from the first ladder assembly 2 and simultaneously compress the elastic member 304 during the movement of the locking lever 302. When the locking lever 303 is in the unlocked state, the operator can pull the locking lever 303 away from the first ladder assembly 2 and simultaneously compress the elastic member 304 during the movement of the locking lever 302. When the locking lever 303 is in the unlocked state, the operator can pull the locking lever 303 away from the first ladder assembly 2 and simultaneously compress the elastic member 304.

[0052] In this embodiment, the first ladder assembly 2 includes a first ladder body 202 and a connecting frame 203. The first ladder body 202 is connected to the connecting frame 203. The connecting frame 203 is hinged to the mounting base 1 through a hinge shaft 101. The matching structure is located on the connecting frame 203. The structure is simple and reliable. Since the locking structure mainly cooperates with the connecting frame 203, the first ladder body 202 does not need to consider the setting position of the matching structure and can flexibly change its own structure, thereby improving the flexibility of the first ladder assembly 2 when designing.

[0053] In this embodiment, the ladder device also includes a second ladder assembly 4 arranged upwardly, and the second ladder assembly 4 is arranged on the side of the mounting base 1 opposite to the first ladder assembly 2. The second ladder assembly 4 and the first ladder assembly 2 together form a multi-level ladder structure, which can effectively compensate for the application scenario when the height of the first ladder assembly 2 is insufficient.

[0054] Specifically, there is no limitation on the inclination angle of the second ladder assembly 4 relative to the bottom surface, and it can be set vertically to the ground or inclined relative to the ground, which can be flexibly selected according to needs.

[0055] In this embodiment, the ladder device also includes a handrail structure 5, which is arranged on the mounting seat 1. The handrail structure 5 is arranged around the second ladder component 4. The handrail structure 5 can be used for the operator to grasp when climbing upwards, thereby improving the safety of the operator's climbing process.

[0056] Specifically, the specific form of the handrail structure 5 is not strictly limited and can be as follows: Figure 7 The structure shown can also be a separate horizontal bar or vertical bar structure.

[0057] According to an embodiment of the present utility model, on the other hand, a crane is provided, which comprises: a machine body and the above-mentioned ladder device, wherein the ladder device is arranged on the machine body.

[0058] In this embodiment, the crane also includes an operating platform, a base, a boom assembly and necessary components.

[0059] According to an embodiment of the present utility model, in another aspect, a working machine is provided, which includes: the above-mentioned ladder climbing device, or the above-mentioned crane.

[0060] In this embodiment, the working machine further includes a load-bearing body and a cargo box. The load-bearing body is used to install a crane, and the cargo box is installed on the load-bearing body and is located on one side of the crane.

[0061] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A ladder climbing device, characterized in that: include: A mounting seat (1) adapted to be connected to an operating table or a base of a vehicle-mounted crane transport vehicle; A first ladder assembly (2) is swingably arranged on the mounting seat (1), the first ladder assembly (2) comprising a first ladder body (202) and a connecting frame (203), the first ladder body (202) being connected to the connecting frame (203), the connecting frame (203) being hinged to the mounting seat (1) via a hinge shaft (101), at least one matching structure being arranged on the connecting frame (203), the first ladder assembly (2) having a storage state arranged away from the ground, and an unfolded state arranged close to the ground and inclined relative to the ground; A locking assembly (3) is arranged on the mounting seat (1) and is suitable for cooperating with the first ladder assembly (2). The locking assembly (3) has a locking state in which the first ladder assembly (2) and the mounting seat (1) are relatively fixed, and an unlocking state in which the first ladder assembly (2) can swing. The locking assembly (3) comprises a mounting bracket (301) and a locking structure. The mounting bracket (301) is fixedly arranged on the mounting seat (1) and is located on one side of the first ladder assembly (2). The locking structure is movably arranged on the mounting bracket (301) and is used to cooperate with the cooperating structure.

2. The ladder climbing device according to claim 1, characterized in that: The locking structure comprises a locking rod (302), and the locking rod (302) is movably arranged on the mounting bracket (301) along the width direction of the first ladder assembly (2). The number of the matching structures of the first ladder assembly (2) is multiple, and the matching structure is a locking hole (201) for the locking rod (302) to pass through.

3. The ladder climbing device according to claim 2, characterized in that: The mounting bracket (301) has a mounting hole (3011) for the locking rod (302) to pass through, and the locking structure also includes an operating rod (303), wherein the operating rod (303) is fixedly arranged at one end of the locking rod (302) away from the locking assembly (3).

4. The ladder climbing device according to any one of claims 1 to 3, characterized in that: The locking assembly (3) further comprises an elastic member (304) and a limiting member (305); the locking structure cooperates with the mounting bracket (301) via the elastic member (304); the limiting member (305) is arranged on the mounting bracket (301) and is located on one side of the locking structure; when the locking structure compresses the elastic member (304) and cooperates with the limiting member (305), the locking assembly (3) is in the unlocked state; when the locking structure is driven by the elastic member (304) to reset and cooperates with the corresponding cooperating structure, the locking assembly (3) is in the locked state.

5. The ladder climbing device according to any one of claims 1 to 3, characterized in that: The ladder device further comprises a second ladder assembly (4) arranged upwards, wherein the second ladder assembly (4) is arranged on a side of the mounting seat (1) opposite to the first ladder assembly (2).

6. The ladder climbing device according to claim 5, characterized in that: The ladder climbing device further comprises a handrail structure (5), wherein the handrail structure (5) is arranged on the mounting seat (1), and the handrail structure (5) is arranged around the second ladder climbing assembly (4).

7. A crane, characterized in that: include: Body; The ladder climbing device according to any one of claims 1 to 6 is arranged on the machine body.

8. A working machine, characterized in that: include: The ladder device according to any one of claims 1 to 6, or the crane according to claim 7.

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