CN2727107Y - Telescopic castor device and device employing same - Google Patents

Abstract

The utility model discloses a telescopic caster device, which is embedded and installed in the bottom or four corners of the outline of logistics equipment or large-scale equipment. telescopic end. The utility model also discloses a device equipped with a plurality of telescopic caster devices. The utility model utilizes a jack, and the caster is fixedly connected to the telescopic end of the jack for telescopic operation, and is used for carrying logistics equipment or large-scale equipment to move rapidly or to adjust its position.

Description

Telescopic caster devices and equipment equipped with telescopic caster devices

technical field

The utility model relates to a telescopic caster device and equipment equipped with the telescopic caster device, in particular to a mechanical or hydraulic telescopic caster device of large logistics equipment and equipment equipped with the telescopic caster device.

Background technique

Ordinary logistics equipment (such as: containers, shelters, pallet boxes) and large-scale equipment are mainly moved by forklifts, reach stackers or other equipment. Without the above equipment or insufficient equipment operating space, it is impossible to move in a short distance inside, quickly move or adjust its position.

The existing telescopic caster device can refer to Chinese patent 98229935.4 (publication number CN2347797Y): Telescopic caster: belongs to the field of mobile household appliance manufacturing, including casters composed of wheels, shafts and fork plates, and fixed plates rigidly connected with the fork plates A threaded rod is fixedly connected between the fixed plate and the fork plate, and the lower opening of the cylinder body whose upper end surface is spirally matched with the threaded rod is covered on the whole caster. It has the advantages that the casters can extend out of the cylinder body for easy movement and the casters can retract the cylinder body for static placement without slipping.

Due to the strength of the design and the problems in the specific implementation, the existing telescopic caster device cannot expand and contract under the situation of supporting large equipment. In the case of insufficient equipment operating space, it is suitable for ordinary logistics equipment (such as containers, shelters, pallet boxes) and large-scale equipment to quickly move or adjust their positions within a short distance.

Utility model content

The technical problem to be solved by the utility model is to provide a telescopic caster device and equipment equipped with a telescopic caster device, so as to solve the problems in the prior art when there is no forklift or reach stacker and when the operating space of the equipment is insufficient. The problem of not being able to make ordinary logistics equipment and large-scale equipment move quickly or adjust its position within a short distance.

In order to achieve the above purpose, the utility model provides a telescopic caster device, which is embedded and installed on the bottom or four corners of the outline of logistics equipment or large-scale equipment. It is characterized in that it includes casters, jacks and connectors. Securely connect the telescoping end of the jack.

The above telescopic caster device is characterized in that the connecting piece is a connecting screw or a connecting plate.

The above-mentioned telescopic caster device is characterized in that the jack is a screw jack, and the telescopic end of the jack is a sliding core sleeve 5; the screw jack is provided with a transverse conical gear 15 and a longitudinal conical gear 16 that are engaged, The hexagonal shaft 2 that is an integral part with the transverse bevel gear 15 is arranged in a horizontal direction, and the hexagonal shaft 2 stretches out of the housing of the jack; the transmission mandrel 22 that is an integral part with the longitudinal bevel gear 16 is arranged in a vertical direction, The lower end of the transmission mandrel 22 is provided with a transmission thread, and cooperates with the embedded nut 14 in the sliding core sleeve 5. The sliding core sleeve 5 is connected to the shell of the jack in a manner that can slide up and down through the flat key 13 and the guide sleeve 12. connect.

The feature of the above-mentioned telescopic caster device is that it also includes a rocker 23, which is inserted into the hexagonal shaft 2 during operation.

The above telescopic caster device is characterized in that the jack can also be a hydraulic cylinder 30, the telescopic end of the jack is the cylinder bar of the hydraulic cylinder 30, and a flow regulating plate 29 is installed at the front end of the hydraulic cylinder 30, so The flow regulating plate 29 is sequentially connected with a quick joint 28, a reversing valve 27, an oil pump 26 and a closed oil tank 25, and a back pressure valve 31 is also installed in the hydraulic circuit.

The above telescopic caster device is characterized in that the jack is embedded in the four corners of the outline of the logistics equipment, the oil pump 26 is a manual oil pump, and the pressure medium of the hydraulic circuit is hydraulic oil, ethanol or water.

The above-mentioned telescopic caster device is characterized in that the caster can be a universal caster, the hub 8 of the caster is connected with the upper seat plate 7 through a thrust bearing, the upper seat plate 7 is fixedly connected to the connecting piece, and the rotation of the wheel hub 8 The center is offset from the axis of the connector.

The above telescopic caster device is characterized in that the caster can also be a fixed caster, the hub 8 of the caster is fixedly connected with the upper seat plate 7, and the upper seat plate 7 is fixedly connected with the connecting piece.

In order to better achieve the purpose of the utility model, the utility model also provides a device equipped with a telescopic caster device, which is characterized in that a plurality of telescopic caster devices are embedded in the bottom or four corners of the outline of the device , the telescopic caster device includes a caster, a jack and a connecting piece, and the caster is fixedly connected to the telescopic end of the jack through the connecting piece.

The above-mentioned equipment is characterized in that the casters of the telescopic caster device installed at the head end of the moving direction of the equipment are fixed casters, and the casters installed at the tail end of the moving direction of the equipment are swivel casters.

The technical effect of the utility model is:

The utility model utilizes a jack, and the casters are fixedly connected to the telescopic end of the jack for telescoping, so as to carry logistics equipment or large-scale equipment to move quickly or adjust its position.

Specific embodiments of the present utility model will be further described in detail below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is the overall structure schematic diagram of mechanical telescopic caster device;

Figure 2a is a schematic view of the structure of the universal caster;

Fig. 2b is a schematic diagram of the structure of the fixed caster;

Fig. 3 is a structural schematic diagram of the guide core sleeve of the mechanical telescopic caster device;

Fig. 4a is a structural schematic diagram of a mechanically telescopic caster device jack;

Figure 4b is a cross-sectional view in the direction of A-A in Figure 4a;

Fig. 5 is a structural schematic diagram of the application of the mechanical telescopic caster device on the shelter;

Fig. 6 is a structural schematic diagram of the application of the hydraulic telescopic caster structure on the shelter;

Fig. 7 is a hydraulic schematic diagram of the hydraulic telescopic caster device.

Detailed ways

The utility model designs a telescopic caster device combined with a jack that can be realized in one step. The device is suitable for installation under large equipment or in the four corners of the outline of logistics equipment and large equipment such as containers, shelters, pallet boxes, etc., to meet the requirements of other equipment. Quick deployment, flexible and maneuverable use requirements.

Technical solution of mechanical telescopic caster device:

Referring to FIG. 1 , it is a schematic diagram of the overall structure of a mechanical telescopic caster device. The caster 4 is connected with the sliding core sleeve 5 in the jack through a part 6 (such as: connecting screw mandrel, connecting plate, etc.). And lock it with locking part 3.

Referring to Fig. 2a, it is a schematic diagram of the structure of the swivel caster; the hub 8 of the swivel caster is connected with the upper seat plate 7 through a thrust bearing, has a certain eccentricity, and can be turned flexibly.

Fig. 2b is a schematic diagram of the structure of the fixed caster; the hub 8 of the fixed caster is directly connected with the upper seat plate 7 and cannot be rotated relatively.

When caster 4 was connected with equipment 24, fixed caster was installed at the front end of fork direction (advance direction), and universal caster was installed at the rear end of fork direction.

The utility model is described below with the structure of screw jack, please refer to shown in Fig. 3, Fig. 4a, 4b and Fig. 5, a pair of bevel gear 15,16 is built in jack 1, hexagonal shaft 2 and bevel gear 15 are made one Component. The transmission mandrel 22 and the bevel gear 16 are integral parts. The lower end of the transmission mandrel 22 has a transmission thread, which cooperates with the embedded nut 14 in the sliding core sleeve 5. The sliding core sleeve 5 in the jack passes through the flat key 13 and the guide sleeve. 12 is connected with the lower seat of the jack 1 and can slide up and down, and the rotating shaft 2 drives the bevel gear 16 and the transmission mandrel 22 to rotate, thereby driving the sliding core sleeve 5 and the caster 4 to expand and contract up and down.

Mechanical telescopic caster device, operating instructions:

Before dragging the equipment with casters, put the equipment flat on the ground, first use the handle 23 to raise one side of the casters (such as: fixed wheels or universal wheels, etc.) Raising the opposite side caster 4 makes the unilateral equipment 24 all break away from the ground to its limit height, and finally raises the caster 4 to the limit height. Take the fixed wheel 4 as the pilot wheel to push the equipment to walk. After the equipment is shifted to the determined working position, the casters 4 should be retracted first. The operation process is as follows: first use the rocker 23 to shake down the one-side caster 4 at the same time so that the equipment 24 on one side is at a certain height from the ground, and then use the rocker 23 to shake the other side caster 4 at the same time to make the one-side equipment 24 touch the ground to the original position ( casters off the ground), and finally roll down casters 4 to the original position.

Implementation method of hydraulic telescopic caster device technology solution:

Referring to Fig. 6 and Fig. 7, the caster 4 is connected with the cylinder rod of the hydraulic cylinder 30 through the connecting screw 6 or the connecting plate. And lock it with a locking piece.

The wheel hub 8 of the swivel caster is connected with the upper seat plate 7 by a thrust bearing, has a certain eccentricity, and can turn flexibly.

The wheel hub 8 of fixed caster is directly connected with upper seat plate 7, can not relatively rotate.

When caster 4 was connected with cabin body 24, fixed castor (referring to accompanying drawing 2b) was installed at the front end of fork direction (advancing direction), and universal caster (referring to accompanying drawing 2a) was installed at the rear end of fork direction.

The utility model patent is described below with a manually operated hydraulic telescopic caster device: the caster 4 is connected with the cylinder bar of the double-acting hydraulic cylinder 30 through the connecting screw 6 or the connecting plate, and each double-acting hydraulic cylinder 30 is equipped with a front end. The flow regulating plate 29 is sequentially connected with the manual reversing valve 27, the manual oil pump 26, and the closed oil tank 25 through the quick connector 28, and a back pressure valve 31 is installed in the system loop to maintain a certain pressure in the system.

Hydraulic telescopic caster device operating instructions:

Before dragging the equipment with casters, the cabin body is laid flat on the ground, the reversing valve 27 is turned to the left position earlier, the handle of the manual oil pump 26 is reciprocated, and the pressure medium (hydraulic oil, ethanol or water, etc.) is discharged from the closed oil tank 25. is drawn out, flows through the oil pump 26, reversing valve 27, quick joint 28, flow regulating plate 29, enters the bottom of the double-acting hydraulic cylinder 30, and simultaneously lifts the cylinder rod to drive the caster 4 out of the chassis. After the lifting equipment action is completed, push The equipment walks to the predetermined position. After the equipment is shifted to the determined working position, first turn the reversing valve 27 to the right position, and reciprocate the handle of the oil pump 26, and the pressure medium (hydraulic oil, ethanol or water, etc.) is drawn out from the closed oil tank 25 and flows through the oil pump 26 , reversing valve 27, back pressure valve 31, enter the top of the hydraulic cylinder 30 and push back the cylinder bar at the same time to drive the caster 4 to retract into the equipment chassis or contour.

Those skilled in the art can easily replace the screw jack in the mechanical telescopic caster device with any kind of jack (including rack and pinion jacks, hook jacks, jacks, hydraulic jacks, and separate hydraulic jacks). within the scope of protection of this patent.

In the utility model, the telescopic caster device can be manually operated, electrically operated, electro-hydraulic operated or any combination thereof, which all fall within the scope of protection of this patent. The pressure medium can be hydraulic oil, ethanol, water, high-pressure gas and other fluids suitable for transmitting pressure. Therefore, the above descriptions are only preferred embodiments of the utility model, and are not used to limit the scope of implementation of the utility model; all equivalent changes and modifications made according to the utility model are covered by the patent scope of the utility model.

Claims (10)

1. A telescopic caster device, embedded and installed in the bottom or four corners of the outline of logistics equipment or large-scale equipment, characterized in that it includes casters, jacks and connectors, and the casters are fixedly connected to the telescopic end of the jack through the connectors . 2. The telescopic caster device according to claim 1, wherein the connecting piece is a connecting screw or a connecting plate. 3. The telescopic caster device according to claim 2, characterized in that, the jack is a screw jack, and the telescoping end of the jack is a sliding core sleeve (5); Bevel gear (15) and longitudinal bevel gear (16), the hexagonal shaft (2) of integral part with transverse bevel gear (15) is horizontally arranged, and hexagonal shaft (2) stretches out of the housing of described jack ; The transmission mandrel (22) that is an integral part with the longitudinal bevel gear (16) is vertically arranged, and the lower end of the transmission mandrel (22) is provided with a transmission thread, and is connected with the embedded nut (14) in the sliding core sleeve (5). ) to cooperate, the sliding core sleeve (5) is connected with the housing of the jack in a manner that can slide up and down through the flat key (13) and the guide sleeve (12). 4. The telescopic caster device according to claim 3, further comprising a rocker (23) inserted into the hexagonal shaft (2). 5. The telescopic caster device according to claim 2, characterized in that the jack is a hydraulic cylinder (30), the telescopic end of the jack is the cylinder bar of the hydraulic cylinder (30), and the hydraulic cylinder (30) ) is equipped with a flow regulating plate (29) at the front end, and the flow regulating plate (29) is connected with a quick connector (28), a reversing valve (27), an oil pump (26) and a closed oil tank (25) in turn, and in the hydraulic circuit A back pressure valve (31) is also installed in it. 6. The telescopic caster device according to claim 5, characterized in that the oil pump (26) is a manual oil pump, and the pressure medium of the hydraulic circuit is hydraulic oil, ethanol or water. 7. The telescopic caster device according to claim 1, 2, 3, 4, 5 or 6, characterized in that the caster is a universal caster, and the hub (8) of the caster is connected to the upper seat plate (7) through a thrust bearing ) connection, the upper seat plate (7) is fixedly connected to the connecting piece, and the rotation center of the hub (8) deviates from the axis of the connecting piece. 8. The telescopic caster device according to claim 1, 2, 3, 4, 5 or 6, characterized in that, the caster is a fixed caster, and the hub (8) of the caster is fixedly connected to the upper seat plate (7). The upper seat plate (7) is fixedly connected with the connecting piece. 9. A device equipped with a telescopic caster device, characterized in that a plurality of telescopic caster devices are embedded in the bottom or four corners of the outline of the device, and the telescopic caster device includes casters, jacks and connectors , the caster is fixedly connected to the telescopic end of the jack through a connecting piece. 10. The equipment equipped with a telescopic caster device according to claim 9, characterized in that the casters of the telescopic caster device installed at the head end of the moving direction of the equipment are fixed casters, and are installed at the end of the moving direction of the equipment. The casters at the end are swivel casters.

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