Anti-falling cargo freight telescopic machine

Abstract

The utility model discloses a kind of anti-falling freight telescopic machines, it is related to telescopic machine field, including telescopic machine and the support seat and support frame supported symmetrically in its downside, the support seat is hingedly installed in the rear side of the telescopic machine, the support frame is located in the front side of the telescopic machine, and anti-explosion telescopic mechanism that the support frame is respectively installed with driving telescopic machine lifting;Telescopic machine is pushed by telescopic component, its downstream discharge place is pointed to with support seat and is lifted, so as to adjust the lifting amplitude of telescopic machine, when telescopic component occurs explosion cylinder and other failures, by anti-falling component fast response, the output end of telescopic component is supported, avoid telescopic machine lose support after explosion cylinder and fall phenomenon, guarantee the safety of operator and surrounding environment, greatly improve the safety and reliability of device lifting operation.

Description

Technical Field

[0001] This utility model relates to the field of telescopic conveyors, and in particular to a fall-proof telescopic conveyor for cargo transport. Background Technology

[0002] Telescopic conveyors are crucial material handling equipment in modern logistics warehousing, ports, and production lines. Through the extension and retraction of their head section, they flexibly connect different fixed points, enabling efficient and automated loading and unloading of goods. Currently, the lifting and telescopic functions of telescopic locomotives are usually driven by cylinders. One end of the cylinder is hinged to the base, and its output end is directly hinged to and pushes the telescopic frame or head platform of the telescopic locomotive to control its lifting height and meet the needs of docking with truck cargo boxes or platforms of different heights. However, the existing direct-drive structure has a major safety hazard: the weight of the entire telescopic boom head and the cargo on it depends entirely on the continuous and normal pressure of a single drive cylinder. In actual working conditions, the drive cylinder is subjected to alternating heavy loads for a long time, and the working environment may be harsh, leading to failures such as cylinder explosion or serious internal leakage. Once such a failure occurs, the pressure inside the drive cylinder will be lost instantly, and its output end will lose its support and will no longer be able to bear the huge weight of the telescopic boom head and cargo, resulting in a rapid fall. The consequences are extremely serious: it will not only damage the equipment or trucks below, causing expensive equipment and cargo losses, but also pose a fatal threat to the personal safety of the operators in the working area. Utility Model Content

[0003] The purpose of this utility model is to provide a fall-proof cargo telescopic machine in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a fall-proof cargo telescopic conveyor, comprising a telescopic conveyor and a support base and a support frame symmetrically supported on its lower side. The support base is hinged to the rear side of the telescopic conveyor, the support frame is located on the front side of the telescopic conveyor, and explosion-proof telescopic mechanisms for driving the telescopic conveyor to rise and fall are respectively installed on the support frame. The explosion-proof telescopic mechanism includes telescopic components symmetrically arranged between the support frame and the telescopic machine, as well as anti-fall components and pressure relief components within the telescopic components; The telescopic assembly is hinged at both ends between the support frame and the telescopic machine, respectively. The anti-fall assembly is used to lock the telescopic assembly after the cylinder bursts. The pressure relief assembly is used to stabilize the pressure inside the anti-fall assembly after the telescopic assembly bursts.

[0005] As a further description of the above technical solution: the telescopic assembly includes a first sleeve hinged to one side of the top of the support frame, and a telescopic rod hinged to one side of the telescopic machine. A second sleeve is coaxially installed on the side of the first sleeve near the axis, and a piston is slidably installed on the inner side of the second sleeve.

[0006] As a further description of the above technical solution: an air inlet pipe extending to the inner side of the second sleeve is installed through the outer side of the first sleeve, the telescopic rod slides on the outer side at the upper port of the first sleeve, and the telescopic rod is fixedly connected to the piston.

[0007] As a further description of the above technical solution: the anti-fall assembly includes a sleeve three installed inside the sleeve one and located outside the sleeve two, and a plurality of abutment rods arranged in a ring array sliding inside the slot at the top of the sleeve one away from the axis.

[0008] As a further description of the above technical solution: the lower side of the outer surface of the sleeve three is provided with a ring array of slots that are connected to the inner side of the sleeve one; a number of springs are sleeved on the outer surface of the number of abutment rods; the two ends of the number of springs respectively abut against the top of the inner cavity of the sleeve one and the bottom of the number of abutment rods.

[0009] As a further description of the above technical solution: the pressure relief assembly includes a pressure sensor installed inside the casing and a pressure relief valve installed through the outside of the casing.

[0010] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: The telescopic assembly drives the telescopic machine, causing its downstream discharge point to rise and fall with the support base as the reference point, thereby adjusting the lifting range of the telescopic machine. When the telescopic assembly experiences a malfunction such as cylinder failure, the anti-fall component responds quickly and provides support to the output end of the telescopic assembly, preventing the telescopic machine from falling due to loss of support after cylinder failure. This ensures the safety of operators and the surrounding environment and greatly improves the safety and reliability of the device's lifting operation. Attached Figure Description

[0011] Figure 1 This is a side elevation view of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall side elevation structure of the explosion-proof telescopic mechanism in this utility model; Figure 3 This is a cross-sectional structural diagram of the explosion-proof telescopic mechanism in this utility model; Figure 4 This utility model Figure 3 Enlarged view of node A in the middle; Figure 5 This utility model Figure 3 A magnified view of the node at point B in the middle.

[0012] Legend: 1. Telescopic mechanism; 2. Support base; 3. Support frame; 4. Explosion-proof telescopic mechanism; 41. Telescopic assembly; 411. Sleeve 1; 412. Sleeve 2; 413. Air inlet pipe; 414. Piston; 415. Telescopic rod; 42. Anti-fall assembly; 421. Sleeve 3; 422. Groove; 423. Support rod; 424. Spring; 43. Pressure relief assembly; 431. Pressure relief valve; 432. Pressure sensor. Detailed Implementation

[0013] 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.

[0014] like Figure 1 - Figure 2 As shown, the present invention provides a fall-proof cargo telescopic conveyor, including a telescopic conveyor 1 and a support base 2 and a support frame 3 symmetrically supported on its lower side. The support base 2 is hinged to the rear side of the telescopic conveyor 1, and the support frame 3 is located on the front side of the telescopic conveyor 1. Explosion-proof telescopic mechanisms 4 for driving the telescopic conveyor 1 to rise and fall are respectively installed on the support frame 3. The explosion-proof telescopic mechanism 4 includes a telescopic component 41 symmetrically arranged between the support frame 3 and the telescopic machine 1, and a fall-prevention component 42 and a pressure relief component 43 inside the telescopic component 41. The telescopic component 41 is hinged at both ends between the support frame 3 and the telescopic machine 1. The fall-prevention component 42 is used to lock the telescopic component 41 after the cylinder bursts. The pressure relief component 43 is used to stabilize the pressure inside the fall-prevention component 42 after the cylinder bursts.

[0015] In actual use, this solution uses the telescopic component 41 to push one side of the material unloading point of the telescopic machine 1 to rise and fall. In the event of an accidental cylinder failure of the telescopic component 41, the anti-fall component 42 continues to provide support for the telescopic machine 1 to prevent it from suddenly falling and being damaged. In addition, the pressure relief component 43 senses the internal air pressure of the anti-fall component 42 during operation and releases the air pressure according to a predetermined threshold during the operation of the anti-fall component 42 to prevent high pressure from damaging the anti-fall component 42.

[0016] Specifically, such as Figures 1-4As shown, the telescopic assembly 41 includes a first sleeve 411 hinged to one side of the top of the support frame 3, and a telescopic rod 415 hinged to one side of the telescopic machine 1. A second sleeve 412 is coaxially installed on the side of the first sleeve 411 near the axis, and a piston 414 is slidably installed on the inner side of the second sleeve 412. An air inlet pipe 413 extending to the inside of a second sleeve 412 is installed through the outer side of the first sleeve 411. The telescopic rod 415 slides on the outer side at the upper end of the first sleeve 411, and the telescopic rod 415 is fixedly connected to the piston 414.

[0017] The external air supply mechanism provides air pressure to the inside of the second sleeve 412 through the air inlet pipe 413, so that the piston 414 sliding inside the second sleeve 412 can push the telescopic rod 415 upward together. When the telescopic rod 415 moves upward, it pushes the discharge port of the telescopic machine 1 upward. Conversely, when the external air supply mechanism discharges the pressurized gas inside the second sleeve 412 through the air inlet pipe 413, the piston 414 drives the telescopic machine 1 to descend downward through the telescopic rod 415.

[0018] Specifically, such as Figures 3-5 As shown, the fall arrestor assembly 42 includes a sleeve 421 installed inside the sleeve 411 and located outside the sleeve 412, and a plurality of abutment rods 423 arranged in a ring array and sliding on the inner side of the slot at the top of the sleeve 411 away from the axis. The lower outer surface of sleeve 3 421 has a ring array of slots 422 that are connected to the inner side of sleeve 1 411. The outer surface of several abutment rods 423 is fitted with several springs 424. The two ends of the springs 424 abut against the top of the inner cavity of sleeve 1 411 and the bottom of the abutment rods 423 respectively.

[0019] When the inner wall of sleeve 2 412 ruptures due to cylinder explosion, the high-pressure gas inside it enters the inner side of sleeve 1 411 through slot 422, thereby pushing several abutment rods 423 at the top of sleeve 1 411 upward to support the top of telescopic rod 415, so as to prevent the telescopic rod 415 from being unable to support the telescopic machine 1 due to the depressurization of the inner side of sleeve 2 412. The spring 424 on the outside of the abutment rod 423 resets the abutment rod 423, preventing unnecessary contact between the abutment rod 423 and the telescopic rod 415 when the sleeve 2 412 is broken.

[0020] Furthermore, such as Figure 2 and Figure 4 As shown, the pressure relief assembly 43 includes a pressure sensor 432 installed inside the sleeve 411 and a pressure relief valve 431 installed through the outside of the sleeve 411. The pressure sensor 432 senses the pressure value inside the bushing 411. When the air pressure inside the bushing 411 reaches the specified threshold, the pressure relief valve 431 is activated to quantitatively remove the excess high-pressure gas inside the bushing 411.

[0021] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A fall-prevention cargo telescopic conveyor, comprising a telescopic conveyor (1) and a support base (2) and a support frame (3) symmetrically supported on its lower side, characterized in that: The support base (2) is hinged to the rear side of the telescopic machine (1), the support frame (3) is located on the front side of the telescopic machine (1), and the support frame (3) is equipped with explosion-proof telescopic mechanisms (4) for driving the telescopic machine (1) to rise and fall. The explosion-proof telescopic mechanism (4) includes a telescopic component (41) symmetrically arranged between the support frame (3) and the telescopic machine (1), as well as a fall prevention component (42) and a pressure relief component (43) inside the telescopic component (41). The telescopic assembly (41) is hinged at both ends between the support frame (3) and the telescopic machine (1). The anti-fall assembly (42) is used to lock the telescopic assembly (41) after the cylinder bursts. The pressure relief assembly (43) is used to stabilize the pressure inside the anti-fall assembly (42) after the telescopic assembly (41) bursts.

2. The anti-fall cargo telescopic conveyor according to claim 1, characterized in that, The telescopic assembly (41) includes a first sleeve (411) hinged to one side of the top of the support frame (3) and a telescopic rod (415) hinged to one side of the telescopic machine (1). A second sleeve (412) is coaxially installed on the side of the first sleeve (411) near the axis. A piston (414) is slidably installed on the inner side of the second sleeve (412).

3. The anti-fall cargo telescopic conveyor according to claim 2, characterized in that, An air inlet pipe (413) extending to the inside of the second sleeve (412) is installed through the outer side of the first sleeve (411). The telescopic rod (415) slides on the outer side at the upper port of the first sleeve (411), and the telescopic rod (415) is fixedly connected to the piston (414).

4. The anti-fall cargo telescopic conveyor according to claim 3, characterized in that, The fall arrestor assembly (42) includes a sleeve three (421) installed inside the sleeve one (411) and located outside the sleeve two (412), and a plurality of abutment rods (423) arranged in a ring array sliding inside the slot at the top of the sleeve one (411) away from the axis.

5. A fall-proof telescopic cargo conveyor according to claim 4, characterized in that, The lower outer surface of the sleeve three (421) has a ring array of slots (422) that are connected to the inner side of the sleeve one (411). The outer surface of the several abutment rods (423) is fitted with several springs (424). The two ends of the several springs (424) abut against the top of the inner cavity of the sleeve one (411) and the bottom of the several abutment rods (423), respectively.

6. A fall-proof telescopic cargo conveyor according to claim 5, characterized in that, The pressure relief assembly (43) includes a pressure sensor (432) installed inside the first sleeve (411) and a pressure relief valve (431) installed through the outside of the first sleeve (411).

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