Novel full-automatic single-cavity double-outlet leg for lorry-mounted crane

Abstract

The utility model relates to a novel full-automatic single-cavity double-outlet leg for a lorry-mounted crane, which belongs to the technical field of crane machinery and comprises a supporting leg bin, a sliding rod is movably connected inside the supporting leg bin, and a supporting leg is fixedly connected to the bottom of the sliding rod. According to the novel full-automatic single-cavity double-outlet leg for the lorry-mounted crane, when a supporting leg bin is supported on the ground, an adjusting mechanism is started to drive a sliding rod to stretch out and draw back, a supporting leg makes contact with the ground for supporting, then a motor is started to drive a screw to rotate, and the rotary motion of a telescopic rod is changed into linear motion under the condition that a limiting block is arranged; therefore, the telescopic rod can be stretched out without manual operation during adjustment, then the first hydraulic rod is started for auxiliary supporting, and it is guaranteed that the stability is higher when the crane is supported; and the first hydraulic rod is connected with the supporting leg bin, in the installation and connection process, after the clamping columns and the installation plates are clamped, fastening connection is conducted through screws, and it is guaranteed that the stability is further enhanced in the connection process.

Description

Technical Field

[0001] This utility model relates to the field of crane machinery technology, specifically a new type of fully automatic single-cavity double-leg crane for truck-mounted cranes. Background Technology

[0002] A crane is a multi-action lifting machine that vertically lifts and horizontally moves heavy objects within a certain range. A truck-mounted crane, also known as a truck-mounted crane, is sometimes referred to as a mobile crane or self-propelled crane. It integrates lifting and transportation functions and is widely used in stations, warehouses, docks, construction sites, and field rescue operations. It can be equipped with cargo boxes of different lengths and cranes of different tonnages. A water tank can also be added to the cargo box to create a truck-mounted crane water sprinkler truck.

[0003] According to Chinese Patent CN210286558U, a novel fully automatic single-chamber double-outlet outrigger for a truck-mounted crane, this invention uses a first hydraulic rod to raise and lower the outrigger compartment, thereby causing two sliding rods to raise and lower the connected outriggers. This results in a lower center of gravity when the outriggers are supported on the ground, making the crane more stable. By setting a telescopic rod and a second hydraulic rod, the second hydraulic rod and the outriggers can be supported on the ground simultaneously when needed, greatly improving the load-bearing capacity of this invention and ensuring the normal operation of the crane.

[0004] The aforementioned device requires manual locking and fixing when adjusting the telescopic rod, which makes it inconvenient to use the auxiliary support devices on both sides of the crane. Furthermore, manual fixing reduces work efficiency and affects the ease of use of the device. Therefore, a new type of fully automatic single-cavity double-leg design for truck-mounted cranes is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a novel fully automatic single-cavity double-leg design for truck-mounted cranes. This design features telescopic rods on both sides of the crane that can automatically extend and retract, ensuring stronger support stability, improving work efficiency, and reducing labor intensity. It solves the problem that manually locking the telescopic rods during adjustment is required, making the auxiliary support devices on both sides of the crane inconvenient to use, and that manual locking also reduces work efficiency and affects the ease of use of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel fully automatic single-cavity double-leg crane for truck-mounted cranes, comprising a leg compartment, characterized in that: a sliding rod is movably connected inside the leg compartment, a leg is fixedly connected to the bottom of the sliding rod, and an adjustment component is provided inside the sliding rod;

[0007] The adjustment assembly includes a motor, which is fixedly connected inside the sliding rod. One end of the motor output shaft is fixedly connected to a screw, and a telescopic rod is threadedly connected to the outer surface of the screw. A limit block is fixedly connected to the outer surface of the telescopic rod, and a connecting block is detachably connected inside the telescopic rod. A first hydraulic rod is fixedly connected to the bottom of the connecting block.

[0008] Furthermore, a connecting plate is fixedly connected to the top of the outrigger compartment, a second hydraulic rod is fixedly connected to the top of the connecting plate, a support plate is fixedly connected to the top of the second hydraulic rod, and a mounting plate is fixedly connected to the top of the support plate.

[0009] Furthermore, a positioning plate is detachably connected to the bottom of the mounting plate, and a snap-fit ​​post is fixedly connected to the top of the positioning plate, the snap-fit ​​post being snapped into the support plate.

[0010] Furthermore, the positioning plate has screws internally threaded on it, and the positioning plate is detachably connected to the mounting plate by the screws.

[0011] Furthermore, an adjustment mechanism is installed inside the outrigger compartment. The sliding rod slides inside the outrigger compartment through the adjustment mechanism. A guide groove is provided inside the sliding rod, and the limiting block slides inside the sliding rod through the guide groove.

[0012] Furthermore, the telescopic rod has a positioning hole inside, and the connecting block is located inside the telescopic rod through the positioning hole. The telescopic rod is threaded with a bolt, and the connecting block is detachably connected to the telescopic rod through the bolt.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. This truck-mounted crane uses a new type of fully automatic single-chamber double-outrigger design. When the outrigger compartment is supporting the ground, the sliding rod is extended by activating the adjustment mechanism, allowing the outrigger to contact the ground for support. Subsequently, the motor drives the screw to rotate, causing the telescopic rod to change from rotational motion to linear movement under the condition of the limit block. This allows the telescopic rod to be extended without manual operation during adjustment. Then, the first hydraulic rod is activated to provide auxiliary support, ensuring greater stability when the crane is supported. The connection between the second hydraulic rod and the outrigger compartment allows the second hydraulic rod to adjust the height of the outrigger compartment from the ground. During installation, the locking post on the top of the positioning plate is used to lock the connection with the mounting plate, and then the screws are tightened to ensure further enhanced stability during connection. In case of problems, it can be disassembled for maintenance.

[0015] 2. This truck-mounted crane uses a new type of fully automatic single-cavity double-outlet leg. By opening a positioning hole inside the telescopic rod, the connecting block of the first hydraulic rod can be limited through the positioning hole during installation and use. Then, the bolts are tightened to ensure that the connection is not prone to shaking during support, thereby improving the safety of the support and preventing breakage. Attached Figure Description

[0016] Figure 1 This is a main sectional view of the structure of this utility model;

[0017] Figure 2 This is a partial bottom view of the structure of this utility model;

[0018] Figure 3 This is a three-dimensional view of the structure of this utility model.

[0019] In the diagram: 1. Outrigger compartment; 2. Sliding rod; 3. Outrigger; 4. Motor; 5. Screw; 6. Telescopic rod; 7. Limiting block; 8. Guide groove; 9. Connecting block; 10. First hydraulic rod; 11. Bolt; 12. Connecting plate; 13. Second hydraulic rod; 14. Support plate; 15. Mounting plate; 16. Positioning plate; 17. Snap-fit ​​post; 18. Screw. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-3 This embodiment of a novel fully automatic single-cavity double-leg crane includes a leg compartment 1, a sliding rod 2 movably connected inside the leg compartment 1, an adjustment mechanism installed inside the leg compartment 1, the sliding rod 2 sliding inside the leg compartment 1 via the adjustment mechanism, a leg 3 fixedly connected to the bottom of the sliding rod 2, and an adjustment component provided inside the sliding rod 2.

[0022] The adjustment assembly includes a motor 4, which is fixedly connected inside the sliding rod 2. One end of the output shaft of the motor 4 is fixedly connected to a screw 5. A telescopic rod 6 is threadedly connected to the outer surface of the screw 5. A limit block 7 is fixedly connected to the outer surface of the telescopic rod 6. A guide groove 8 is provided inside the sliding rod 2, and the limit block 7 slides inside the sliding rod 2 through the guide groove 8.

[0023] The telescopic rod 6 has a detachable connecting block 9 inside. The bottom of the connecting block 9 is fixedly connected to a first hydraulic rod 10. The telescopic rod 6 has a positioning hole inside. The connecting block 9 is located inside the telescopic rod 6 through the positioning hole. The telescopic rod 6 has a threaded connection to a bolt 11 inside. The connecting block 9 is detachably connected to the telescopic rod 6 through the bolt 11.

[0024] A connecting plate 12 is fixedly connected to the top of the outrigger compartment 1. A second hydraulic rod 13 is fixedly connected to the top of the connecting plate 12. A support plate 14 is fixedly connected to the top of the second hydraulic rod 13. A mounting plate 15 is fixedly connected to the top of the support plate 14. A positioning plate 16 is detachably connected to the bottom of the mounting plate 15. A screw 18 is threaded inside the positioning plate 16. The positioning plate 16 is detachably connected to the mounting plate 15 by the screw 18. A snap-fit ​​post 17 is fixedly connected to the top of the positioning plate 16. The snap-fit ​​post 17 snaps into the support plate 14.

[0025] In this embodiment, by opening a positioning hole inside the telescopic rod, the connecting block can be limited through the positioning hole when the first hydraulic rod is installed and used, and then the bolts are tightened to ensure that the connection is not prone to shaking during support, thereby improving the safety of the support and preventing breakage.

[0026] In this embodiment, since the support plate 14 and the mounting plate 15 are connected and fixed by the positioning plate 16, the connection can not only play a fixing role, but also achieve the effect of limiting position.

[0027] In this embodiment, a battery and a control switch are provided at the bottom of the mounting plate 15. The battery and the control switch are electrically connected by wires. The control switch and the motor 4 are electrically connected by wires. The control switch and the first hydraulic rod 10 are electrically connected by wires. The control switch and the second hydraulic rod 13 are electrically connected by wires. The working state of the first hydraulic rod 10 and the second hydraulic rod 13 can be activated by the control switch. The running state of the motor 4 can be controlled by the control switch.

[0028] The working principle of the above embodiments is as follows:

[0029] This truck-mounted crane uses a new type of fully automatic single-chamber double-outrigger design. When the outrigger compartment 1 is supporting the ground, the sliding rod 2 is extended by activating the adjustment mechanism, and the outrigger 3 contacts the ground for support. Then, the motor 4 is activated to drive the screw 5 to rotate, so that the telescopic rod 6 changes from rotational motion to linear movement under the limit block 7. This allows the telescopic rod 6 to be extended without manual operation during adjustment. Then, the first hydraulic rod 10 is activated to provide auxiliary support, ensuring greater stability when the crane is supported. The connection between the second hydraulic rod 13 and the outrigger compartment 1 allows the second hydraulic rod 13 to adjust the height of the outrigger compartment 1 from the ground. During installation, the locking post 17 on the top of the positioning plate 16 is locked to the mounting plate 15, and then the screws 18 are tightened to ensure further enhanced stability during connection. In case of problems, it can be disassembled for maintenance.

[0030] It should be noted that all standard parts used in this application can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel fully automatic single-cavity double-outline outrigger for truck-mounted cranes, comprising an outrigger compartment (1), characterized in that: The leg compartment (1) is movably connected to a sliding rod (2), and the bottom of the sliding rod (2) is fixedly connected to a leg (3). An adjustment component is provided inside the sliding rod (2). The adjustment assembly includes a motor (4), which is fixedly connected inside the sliding rod (2). One end of the output shaft of the motor (4) is fixedly connected to a screw (5). A telescopic rod (6) is threadedly connected to the outer surface of the screw (5). A limit block (7) is fixedly connected to the outer surface of the telescopic rod (6). A connecting block (9) is detachably connected inside the telescopic rod (6). A first hydraulic rod (10) is fixedly connected to the bottom of the connecting block (9).

2. The novel fully automatic single-cavity double-leg crane according to claim 1, characterized in that: A connecting plate (12) is fixedly connected to the top of the outrigger compartment (1), a second hydraulic rod (13) is fixedly connected to the top of the connecting plate (12), a support plate (14) is fixedly connected to the top of the second hydraulic rod (13), and an mounting plate (15) is fixedly connected to the top of the support plate (14).

3. A novel fully automatic single-cavity double-leg crane according to claim 2, characterized in that: The bottom of the mounting plate (15) is detachably connected to a positioning plate (16), and the top of the positioning plate (16) is fixedly connected to a snap-fit ​​post (17), which snaps into the support plate (14).

4. A novel fully automatic single-cavity double-leg crane according to claim 3, characterized in that: The positioning plate (16) is internally threaded with screws (18), and the positioning plate (16) is detachably connected to the mounting plate (15) by screws (18).

5. A novel fully automatic single-cavity double-leg crane according to claim 1, characterized in that: An adjustment mechanism is installed inside the outrigger compartment (1). The sliding rod (2) slides inside the outrigger compartment (1) through the adjustment mechanism. A guide groove (8) is provided inside the sliding rod (2). The limiting block (7) slides inside the sliding rod (2) through the guide groove (8).

6. A novel fully automatic single-cavity double-leg crane according to claim 1, characterized in that: The telescopic rod (6) has a positioning hole inside, and the connecting block (9) is located inside the telescopic rod (6) through the positioning hole. The telescopic rod (6) is threaded with a bolt (11), and the connecting block (9) is detachably connected to the telescopic rod (6) through the bolt (11).

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