Automatic adjusting and anti-loosening device for three-quadruple lateral moving pipeline of portal frame

Abstract

The utility model discloses an automatic adjusting anti-loosening device for a gantry three-four-linkage side-moving pipeline, which comprises a pin shaft II, supports, connecting shafts, pulleys, pin shaft connecting rods, an elastic connecting piece, a connecting plate, a cylinder head fixing plate and a pulley rubber pipe side-moving pipeline, and a pair of supports, two connecting shafts, the connecting plate and the cylinder head fixing plate are welded into a whole. In the ascending and descending process of the portal frame, if the pulley rubber pipe sidesway pipeline is loosened, the elastic connecting piece can jack up the pin shaft connecting rod and enable the pin shaft II to slide in the arc-shaped kidney-shaped hole in the support until the pulley rubber pipe sidesway pipeline is tensioned, and the purpose that the pulley rubber pipe sidesway pipeline does not fall off from the pulley is achieved. The rubber tube pulley has the advantages that the rubber tube is prevented from sliding out of the pulley groove to cause damage or clamping stagnation, and the rubber tube pulley can adapt to various working conditions and is high in safety, simple, convenient, easy to install and high in stability.

Description

Technical Field

[0001] This utility model relates to an automatic adjustment and anti-loosening device for the three- or four-section side shift pipeline of a mast, belonging to the technical field of forklift mast side shift pipeline adjustment. Background Technology

[0002] With the development of the logistics and warehousing industry, forklifts are becoming increasingly common. In daily forklift operation, various attachments such as side shifters, adjustable forks, and soft-pouch clamps are used adaptably to different working conditions. Engineers then configure triple or quadruple side shift lines on the mast to accommodate these attachments. However, during current forklift mast operation, due to its design and adjustments by assembly personnel, the mast lines may loosen and detach from the pulleys after the forks have fully descended or after multiple lifting operations (see [reference]). Figure 1 and Figure 2 This can cause pipeline blockage or even oil pipe rupture and leakage, posing a significant safety hazard. The logistics and warehousing industry is one with extremely high safety requirements. With the increasing use of gantry systems equipped with various working attachments, ensuring the safety and stability of gantry pipelines has become an urgent issue to be addressed. Utility Model Content

[0003] The technical problem this invention aims to solve is how to address the issue of loosening of the three- or four-section lateral displacement pipeline of the gantry during operation.

[0004] To solve the above-mentioned technical problems, this utility model provides an automatic adjustment and anti-loosening device for three- or four-section side-shifting pipelines of a gantry, which facilitates automatic adjustment and anti-loosening of three- or four-section side-shifting pipelines and significantly improves working stability and safety.

[0005] To achieve the above-mentioned technical objectives and effects, this application provides the following technical solution:

[0006] An automatic adjustment and anti-loosening device for three- or four-section lateral displacement pipelines of a gantry includes two spaced-apart brackets. A connecting plate is fixedly installed between the two brackets. One side of the connecting plate is provided with a cylinder head fixing plate for connecting the cylinder head of the intermediate cylinder. The cylinder head fixing plate is located outside the two brackets. The side of the two brackets opposite to the cylinder head fixing plate is fixed by two symmetrically arranged pins. Multiple pulley hose lateral displacement pipelines pass through the two pins and the connecting plate and can be locked at the pipeline valve hole. The connecting plate is provided with multiple sets of tensioning and anti-loosening components that work together to keep the pulley hose lateral displacement pipelines in a taut state at all times.

[0007] Preferably, the tensioning and anti-loosening assembly includes a second pin, a pin connecting rod, an elastic connector, and pulleys. Two second pins are arranged at an angle, spaced vertically. Each second pin passes through two supports and is positioned in the lower part of the supports. The two second pins are connected by the pin connecting rod and are synchronously movably mounted on the supports. The second pin closer to the first pin is positioned closer to the connecting plate, while the second pin away from the first pin is positioned away from the connecting plate. One end of the pin connecting rod on the lower second pin extends downwards at an angle, and its extended tail is rotatably connected to the connecting plate. The other end of the pin connecting rod on the lower second pin is elastically connected to the cylinder head fixing plate via the elastic connector. Multiple pulleys are correspondingly fitted on each of the two second pins. A single pulley hose lateral displacement pipe passes through two corresponding pulleys. The elastic force of the elastic connector drives the movement of the second pin and pulleys, maintaining a supporting state for the pulley hose lateral displacement pipe. Multiple tensioning and anti-loosening assemblies work together to achieve multi-point support, thereby ensuring a tensioned state.

[0008] Furthermore, the bracket is provided with an arc-shaped waist hole for the corresponding pin shaft two to slide movably. The arc-shaped waist hole is opened with the curvature of the pulley hose. When the pin shaft two slides to the end of the arc-shaped waist hole away from the connecting plate, the elastic connector is in a taut state.

[0009] Furthermore, at least four pulleys are provided on each of the single pins.

[0010] Furthermore, the elastic connector is a spring pin.

[0011] Furthermore, the tensioning and anti-loosening components are arranged in two sets symmetrically with the plane of symmetry of the two pins as the symmetrical plane.

[0012] Preferably, the pulley hose lateral displacement pipeline is top-limited by two of the aforementioned pins.

[0013] Preferably, the two brackets and the connecting plate are fixed together by at least one connecting shaft, and the connecting plate is located in the middle of the two brackets.

[0014] The automatic adjustment and anti-loosening device for the three- or four-section lateral displacement pipeline of the gantry provided by this utility model has the following advantages:

[0015] This utility model has a simple structure, is easy to assemble and operate, facilitates automatic adjustment and anti-loosening of three- or four-section side-shifting pipelines, significantly improves working stability and safety, ensures that the gantry pipelines do not loosen or fall off the pulleys during operation, has a stable tensioning method that can adapt to various working conditions, and enhances ease of use. Attached Figure Description

[0016] Figure 1 A schematic diagram of the cylinder head for a standard three- or four-section side-shifting pipeline in a conventional gantry.

[0017] Figure 2 A schematic diagram of the cross-sectional structure of the cylinder head of an existing ordinary gantry triple or quadruple side-shifting pipeline;

[0018] Figure 3 A side view of an automatic adjustment and anti-loosening device for a three- or four-section lateral displacement pipeline of a gantry provided in this embodiment of the present invention;

[0019] Figure 4 A front view of an automatic adjustment and anti-loosening device for a gantry three- or four-section side-shifting pipeline provided in this embodiment of the present invention;

[0020] Figure 5 A cross-sectional structural schematic diagram of an automatic adjustment and anti-loosening device for a three- or four-section lateral displacement pipeline of a gantry provided in this embodiment of the present utility model;

[0021] Figure 6 A front view of the pin connecting rod provided in an embodiment of this utility model;

[0022] Figure 7 A side view of the pin connecting rod provided in an embodiment of this utility model;

[0023] Figure 8 A front view of the cylinder head fixing plate provided in an embodiment of this utility model;

[0024] Figure 9 A side view of the cylinder head fixing plate provided in an embodiment of this utility model;

[0025] Figure 10 A front view of the connecting plate provided in an embodiment of this utility model;

[0026] In the picture:

[0027] 1-Bracket; 11-Arc-shaped waist hole; 2-Connecting plate; 3-Connecting shaft; 4-Cylinder head fixing plate; 5-Pin shaft one; 6-Pulley hose side displacement pipeline; 7-Tensioning and anti-loosening component; 71-Pin shaft two; 72-Pin shaft connecting rod; 73-Elastic connector; 74-Pulley. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] Reference Figure 3An automatic adjustment and anti-loosening device for a three- or four-section lateral displacement pipeline of a gantry includes two spaced-apart brackets 1. A connecting plate 2 is fixedly installed between the two brackets 1. Specifically, the two brackets 1 and the connecting plate 2 are connected and welded together by at least one connecting shaft 3. The connecting plate 2 is located in the middle of the two brackets 1. A cylinder head fixing plate 4 for connecting the cylinder head of the intermediate cylinder is welded to one side of the connecting plate 2. The cylinder head fixing plate 4 is located outside the two brackets 1 and can be locked to the cylinder head of the intermediate cylinder by bolts and washers. The side of the two brackets 1 facing away from the cylinder head fixing plate 4 is connected by two symmetrically arranged pins. 5. The pin is inserted and fixed by the groove at the end of the pin 5 and the standard clamp. Multiple pulleys 74 rubber hoses 6 are inserted between the two pins 5 and the connecting plate 2 and can be locked at the pipe valve hole. The connecting plate 2 is equipped with multiple sets of tensioning and anti-loosening components 7 to keep the pulleys 74 rubber hoses 6 in a taut state, so as to prevent the pulleys 74 rubber hoses 6 from falling off and increase safety. The two pins 5 can limit the top of the pulleys 74 rubber hoses 6 while connecting and fixing the two supports 1.

[0030] Reference Figures 3-10 The tensioning and anti-loosening assembly 7 includes a second pin 71, a pin connecting rod 72, an elastic connector 73, and a pulley 74. Two second pins 71 are arranged at an angle, spaced vertically. Each pin 71 passes through a bracket 1 and is positioned in the lower part of the bracket 1. The two second pins 71 are connected by the pin connecting rod 72 and are synchronously mounted on the bracket 1. The second pin 71 closer to the first pin 5 is positioned closer to the connecting plate 2, while the second pin 71 away from the first pin 5 is positioned away from the connecting plate 2. One end of the lower pin 71 of the pin connecting rod 72 extends downwards at an angle, and its extended tail is rotatably connected to the connecting plate 2 via a shaft. The other end of the lower pin 71 of the pin connecting rod 72 is connected to the cylinder head fixing plate 4 via... The elastic connector 73 provides an elastic connection. Multiple pulleys 74 are fitted onto each of the two pins 71. A single pulley 74 allows the hose lateral displacement pipe 6 to pass through the corresponding two pulleys 74. The elastic force of the elastic connector 73 drives the movement of the pins 71 and pulleys 74, maintaining a supporting state on the hose lateral displacement pipe 6. Multiple sets of tensioning and anti-loosening components 7 work together to achieve multi-point support, thus ensuring tension. In this embodiment, the elastic connector 73 uses spring pins. The installation and use of spring pins are existing technologies and will not be elaborated upon. Two sets of tensioning and anti-loosening components 7 are symmetrically installed with the plane of symmetry of the two pins 5 as the symmetrical plane, ensuring sufficient stability while maintaining tension.

[0031] Furthermore, the bracket 1 is provided with an arc-shaped waist hole 11 for the corresponding pin 71 to slide movably. The arc-shaped waist hole 11 is opened with the curvature of the pulley 74 rubber tube. The two ends of the pin 71 are provided with grooves and are used with standard clamps to limit the position between the two brackets 1 and to slide with the arc-shaped waist hole 11. When the pin 71 slides to the end of the arc-shaped waist hole 11 away from the connecting plate 2, the elastic connector 73 is in a taut state.

[0032] Furthermore, at least four pulleys 74 are fixedly fitted on a single pin shaft 71, which can then be adapted to triple, quadruple, or even more pulleys 74 in the hose side displacement pipeline 6.

[0033] The working principle of the automatic adjustment and anti-loosening device for the three- or four-section lateral displacement pipeline of the gantry provided by this utility model is as follows:

[0034] When assembling the three- or four-section side-shifting pipeline, the assembler first passes the four sets of pulleys 74 and a pair of pin connecting rods 72 through pin 71, and locks them to the welded assembly of a pair of brackets 1, two connecting shafts 3, connecting plate 2, and cylinder head fixing plate 4 using clamps. Finally, the two pin connecting rods 72 are connected to the ear plate holes of the cylinder head fixing plate 4 through the elastic connectors 73. Then, the side-shifting pipeline 6 of the pulley 74 is passed through the pulley 74 and pressed down to keep the spring pin taut, and finally the pipeline is locked at the pipeline valve hole. During the lifting and lowering of the gantry, if the side-shifting pipeline 6 of the pulley 74 becomes loose, the elastic connector 73 will push up the pin connecting rod 72 and make pin 71 slide in the arc-shaped waist hole 11 of the bracket 1 until the side-shifting pipeline 6 of the pulley 74 is tensioned, thus preventing the side-shifting pipeline 6 of the pulley 74 from falling off the pulley 74. This device is simple to manufacture, highly operable, reduces costs, increases safety, and can be adapted to various working conditions, making it widely applicable.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model are still within the scope of the technical solution of this utility model.

Claims

1. An automatic adjustment and anti-loosening device for a gantry three- or four-section lateral displacement pipeline, characterized in that, It includes two spaced brackets (1), and a connecting plate (2) is fixedly installed between the two brackets (1). One side of the connecting plate (2) is provided with a cylinder head fixing plate (4) for connecting the cylinder head of the intermediate cylinder. The cylinder head fixing plate (4) is located outside the two brackets (1). The side of the two brackets (1) away from the cylinder head fixing plate (4) is fixed by two symmetrically arranged pins (5). Multiple pulleys (74) hose side-shifting pipes (6) are passed between the two pins (5) and the connecting plate (2) and can lock the pipes at the pipe valve holes. The connecting plate (2) is provided with multiple sets of tensioning and anti-loosening components (7) that cooperate to adjust so that the pulleys (74) hose side-shifting pipes (6) are always in a tensioned state.

2. The automatic adjustment and anti-loosening device for a gantry three- or four-section lateral displacement pipeline as described in claim 1, characterized in that, The tensioning and anti-loosening component (7) includes a second pin (71), a pin connecting rod (72), an elastic connector (73), and a pulley (74). Two pins (71) are arranged at an angle, one above the other. Each pin (71) passes through two supports (1) and is located in the lower part of the supports (1). The two pins (71) are connected by the pin connecting rod (72) and are synchronously moved on the supports (1). The pin (71) closer to the first pin (5) is closer to the connecting plate (2), and the pin (71) away from the first pin (5) is away from the connecting plate (2). The pin connecting rod (72) is located at one end of the lower pin (71). The pin shaft extends downward at an angle and its tail is rotatably connected to the connecting plate (2). The pin shaft connecting rod (72) is located at one end of the lower pin shaft two (71) and is elastically connected to the cylinder head fixing plate (4) through the elastic connector (73). Multiple pulleys (74) are correspondingly sleeved on both pin shaft two (71). The single pulley (74) hose side displacement pipe (6) passes through the two corresponding pulleys (74). The elastic force of the elastic connector (73) drives the movement of the pin shaft two (71) and the pulley (74) to maintain the support state of the hose side displacement pipe (6) of the pulley (74). Multiple sets of tensioning and anti-loosening components (7) cooperate to achieve multi-point support and thus ensure tension.

3. The automatic adjustment and anti-loosening device for a gantry three- or four-section lateral displacement pipeline as described in claim 2, characterized in that, The bracket (1) has an arc-shaped waist hole (11) for the corresponding pin shaft two (71) to slide movably. The arc-shaped waist hole (11) is opened with the curvature of the pulley (74) hose. When the pin shaft two (71) slides to the end of the arc-shaped waist hole (11) away from the connecting plate (2), the elastic connector (73) is in a taut state.

4. The automatic adjustment and anti-loosening device for a gantry three- or four-section lateral displacement pipeline as described in claim 2, characterized in that, At least four pulleys (74) are provided on each of the single pins (71).

5. The automatic adjustment and anti-loosening device for a gantry three- or four-section lateral displacement pipeline as described in claim 2, characterized in that, The elastic connector (73) is a spring pin.

6. The automatic adjustment and anti-loosening device for a gantry three- or four-section lateral displacement pipeline as described in claim 2, characterized in that, The tensioning and anti-loosening components (7) are arranged in two sets symmetrically with the plane of symmetry of the two pins (5).

7. The automatic adjustment and anti-loosening device for a gantry three- or four-section lateral displacement pipeline as described in claim 1, characterized in that, The pulley (74) and the hose side displacement pipeline (6) are top-limited by the two pins (5).

8. The automatic adjustment and anti-loosening device for a gantry three- or four-section lateral displacement pipeline as described in claim 1, characterized in that, The two brackets (1) and the connecting plate (2) are fixed together by at least one connecting shaft (3), and the connecting plate (2) is located in the middle of the two brackets (1).

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