CN210655362U

CN210655362U - Tongue plate pulley device of telescopic platform

Info

Publication number: CN210655362U
Application number: CN201921550911.6U
Authority: CN
Inventors: 费清川; 杨惕; 钱庆旭
Original assignee: SHANGHAI FASTLINK CO Ltd
Current assignee: SHANGHAI FASTLINK CO Ltd
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-06-02
Anticipated expiration: 2029-09-18

Abstract

A tongue plate pulley device of a telescopic platform is characterized in that a tongue plate which can extend forwards relative to a main table top is arranged below the main table top, pulleys are arranged on the upper end face of the tongue plate or the lower end face of the main table top, and the pulleys are in contact with the lower end face of the main table top or the upper end face of the tongue plate and guide along the extending direction of the tongue plate. The utility model discloses install two fixed pulley mechanisms on the strengthening rib of hyoplastron below, when the hyoplastron stretches out the shrink, supplementary hyoplastron gos forward, has played the guide effect.

Description

Tongue plate pulley device of telescopic platform

Technical Field

The utility model relates to a pulley gear suitable for supplementary telescopic platform hyoplastron stretches out the shrink, specifically speaking is a hyoplastron pulley gear of telescopic platform.

Background

The telescopic platform for loading and unloading goods is one of indispensable devices in logistics, and can effectively improve the loading and unloading goods efficiency; a bridge is erected between the platform and the truck, the height difference between the platform and the truck tail plate can be changed, the forklift truck is suitable for various trucks, and the forklift truck can enter the truck to carry out efficient carrying work through simple operation.

Referring to fig. 1, in a tongue plate sliding mechanism of an existing telescopic platform, guide rails are installed on two sides of a tongue plate, so that the tongue plate advances under the pushing of a telescopic cylinder, however, the guide rails on two sides of the tongue plate sliding mechanism are easy to wear, and if a problem occurs in the processing process, a recess or a protrusion is formed in the middle of the tongue plate, and the tongue plate is jammed when extending and retracting, which is unfavorable for use.

Chinese patent No. CN201721901893.2 discloses a guiding mechanism of a telescopic hydraulic platform, wherein a guiding slide rail and a pulley are respectively arranged on two sides of a table-board and a lapping plate; the cross section of the guide sliding rail is right-angled and comprises a flat plate and an outer plate, the pulley is supported below the flat plate, and the outer plate is wrapped on the outer side of the pulley; the outer surface of the pulley, the lower surface of the flat plate and the inner surface of the outer plate are all provided with an ultrahigh molecular weight polyethylene layer, and a guide sliding rail and the pulley of a mute and anti-skid layer are laid, so that the noise and the abrasion are effectively reduced, the mute effect is better, and the wear resistance is strong; has ductility, is not easy to adhere and has strong low temperature resistance.

Disclosure of Invention

The utility model aims to solve the existing problems and provide a tongue plate pulley device of a telescopic platform. In order to achieve the above object, the utility model adopts a technical scheme that the tongue plate comprises a main table board, a tongue plate which can extend towards the front end relative to the main table board is arranged below the main table board, a pulley is arranged on the upper end surface of the tongue plate or the lower end surface of the main table board, the pulley is contacted with the lower end surface of the main table board or the upper end surface of the tongue plate, and the pulley guides the tongue plate along the extending direction of the tongue plate.

The pulley is cylindrical, and two cylindrical end faces are respectively and rotatably connected through the connecting plate and the upper end face of the tongue plate or the lower end face of the main table top.

Wherein, the rotation axis of the cylinder is vertical to the extending direction of the tongue plate.

The pulley is characterized by further comprising a reinforcing rib, the root of the connecting plate is fixed on the reinforcing rib of the main table top or the tongue plate, and the end part of the connecting plate is rotatably connected with the pulley.

The two ends of the pulley are respectively provided with a bearing, and the bearings are connected with the connecting plate through rotating shafts.

Wherein the bearing is a roller bearing.

Wherein, the surface of the pulley is provided with a polytetrafluoroethylene layer.

The tongue plate assembly consists of a plurality of reinforcing tubes which are transversely arranged side by side, and the reinforcing tubes are square tubes.

Wherein, both ends of the tongue plate component are provided with positioning pulleys which can move along the guide rail.

The lower end of the tongue plate assembly is also provided with a support rod which comprises support legs, a square tube and two connecting support plates, and the connecting support plates are respectively connected to the lower ends of the support legs and the upper ends of the square tube; during transportation, the two connecting support plates are connected in an involutory mode to complete fixation.

The side plates are arranged on two sides of the plurality of transverse side-by-side reinforcing pipes and are respectively provided with hoisting holes.

Compared with the prior art, the utility model has the advantages that the two fixed pulley mechanisms are arranged on the reinforcing ribs below the tongue plate, and when the tongue plate is extended and contracted, the tongue plate is assisted to move forward, thereby playing a role in guiding; the cylindrical pulley can protect the internal bearing from the external environment, so that the stability of the structure is protected; the polytetrafluoroethylene layer on the surface of the pulley has the characteristics of good wear resistance and high hardness.

In addition, the reinforcing tube acts like a reinforcing rib, so that the structural strength of the tongue plate assembly is increased, and the load can be improved; the tongue plates can be prevented from moving during transportation due to the connection between the supporting legs, so that the transportation of a forklift is facilitated, and the safety in the transportation process is ensured; and the hoisting holes on the side plates ensure the safety of the platform during internal assembly and the assembly of the upper table top and the rack.

Drawings

FIG. 1 is a schematic structural diagram of a conventional telescopic platform;

fig. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a schematic structural view of a pulley;

FIG. 4 is a schematic structural view of a reinforcing bar;

referring to the attached drawings, a pulley 1, a bearing 2, a reinforcing rib 3, a connecting plate 4, a main table surface 5, a tongue plate 6, a supporting rod 7 and a bottom frame 8.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings.

Referring to fig. 2 to 4, fig. 2 to 4 show an embodiment of the present invention, in which the retractable platform is integrally divided into a tongue plate and a main table. The lifting of the main table top depends on two lifting oil cylinders, the platform is lifted under the action of the lifting oil cylinders, and then the tongue plate is pushed by the telescopic oil cylinders to extend out and is lapped in the carriage. The tongue plate assembly is powered by a telescopic oil cylinder, and guide rails and guide friction blocks are arranged on two sides of the tongue plate assembly and on side plate edges of the main table board, so that the tongue plate assembly can smoothly extend or contract under the pushing of the oil cylinder.

According to the technical scheme of the embodiment, the pulleys are arranged on the lower end face of the main table top (or the upper end face of the tongue plate), and the pulleys are in contact with the upper end face of the tongue plate, so that the pulleys and the side guide rail can assist the tongue plate in extending and retracting actions; on the other hand, the tongue plate can also be guided. Specifically, a reinforcing rib is arranged on the lower end face of the main table top, a pulley device is welded on the transverse reinforcing rib, the pulley is just in contact with the reinforcing rib of the tongue plate at the installation height, and two roller bearings are installed in the middle of the pulley.

Furthermore, the pulley is cylindrical, and two cylindrical end faces are respectively and rotatably connected through the upper end faces of the connecting plate and the tongue plate or the lower end face of the main table top. The axis of rotation of the cylinder is perpendicular to the direction of extension of the tongue.

Wherein, the both ends of pulley are equipped with the bearing respectively, and the bearing passes through the pivot and connects with the connecting plate. The pulley can run smoothly under the pressure of the tongue plate and can not be worn excessively. The bearings in this embodiment are roller bearings. The root of the connecting plate is fixed on the reinforcing rib of the main table top or the tongue plate, and the end part of the connecting plate is rotatably connected with the pulley. The tongue plate assembly is composed of a plurality of reinforcing tubes which are transversely arranged side by side, the reinforcing tubes are square tubes, the structural strength of the tongue plate assembly is improved, and the load can be improved. In the manufacturing process, the front end of the reinforcing rib is provided with a clamping piece, and a positioning plate at the front end of the reinforcing rib is provided with a clamping groove; the card is placed in the clamping groove to complete fixation; two ends of the tongue plate assembly are provided with positioning pulleys which can move along the guide rail.

Preferably, referring to fig. 1, the lower end of the tongue plate assembly is further provided with a support rod, which comprises a support leg, a square tube and two connecting support plates, wherein the connecting support plates are respectively connected to the lower end of the support leg and the upper end of the square tube; during transportation, the two connecting support plates are connected in an involutory mode to complete fixation. The supporting legs on the tongue plate assembly and the supporting legs of the bottom frame can be connected through the supporting foot plates by bolts, and the tongue plate can be prevented from moving during transportation. Preferably, the rubber pad between the supporting foot plates plays the roles of buffering and damping and preventing noise.

The surfaces of the connecting support plates are provided with a plurality of through holes, and the two connecting support plates are fixedly connected through bolts. The curb plate is installed in the both sides of a plurality of horizontal stiffening pipes side by side, is equipped with the hole for hoist on the curb plate respectively.

Preferably, the surface of the pulley is provided with a polytetrafluoroethylene layer, and the pulley has the characteristics of good wear resistance and high hardness. The embodiments of the present invention have been described in conjunction with the accompanying drawings and examples, the structures of which are not intended to limit the present invention, and those skilled in the art can make modifications as required, and all changes and modifications within the scope of the appended claims are within the scope of protection.

Claims

1. The utility model provides a hyoplastron pulley gear of telescopic platform, includes the main mesa, and main mesa below is equipped with the hyoplastron that can stretch out to the front end relative main mesa, its characterized in that: the upper end face of the tongue plate or the lower end face of the main table top is provided with a pulley, and the pulley is in contact with the lower end face of the main table top or the upper end face of the tongue plate and is used for guiding along the extending direction of the tongue plate.

2. The tongue pulley device of a telescoping platform of claim 1, wherein: the pulley is cylindrical, and the rotation axis of the pulley is vertical to the extending direction of the tongue plate; the two cylindrical end surfaces are respectively and rotatably connected through the upper end surfaces of the connecting plate and the tongue plate or the lower end surface of the main table board.

3. The tongue pulley device of a telescoping platform of claim 2, wherein: the root part of the connecting plate is fixed on the reinforcing rib of the main table top or the tongue plate, and the end part of the connecting plate is rotatably connected with the pulley.

4. The tongue pulley device of a telescoping platform of claim 2, wherein: and bearings are respectively arranged at two ends of the pulley and are connected with the connecting plate through rotating shafts.

5. The tongue pulley device of a telescoping platform of claim 4, wherein: the bearing is a roller bearing.

6. A tongue pulley arrangement for a telescopic platform according to claim 1, 2, 3, 4 or 5, characterized in that: and a polytetrafluoroethylene layer is arranged on the surface of the pulley.

7. A tongue pulley arrangement for a telescopic platform according to claim 1, 2, 3, 4 or 5, characterized in that: the tongue plate assembly consists of a plurality of reinforcing tubes which are transversely arranged side by side, and the reinforcing tubes are square tubes.

8. The tongue pulley device of a telescoping platform of claim 7, wherein: two ends of the tongue plate assembly are provided with positioning pulleys which can move along the guide rail.

9. The tongue pulley device of a telescoping platform of claim 7, wherein: the lower end of the tongue plate assembly is also provided with a support rod which comprises a support leg, a square tube and two connecting support plates, and the connecting support plates are respectively connected to the lower end of the support leg and the upper end of the square tube; during transportation, the two connecting support plates are connected in an involutory mode to complete fixation.

10. The tongue pulley device of a telescoping platform of claim 7, wherein: the side plates are arranged on two sides of the plurality of transverse side-by-side reinforcing pipes, and hoisting holes are respectively formed in the side plates.