Buffer protection device of European style crane

Abstract

The utility model provides a buffer protection device of a European style crane. The buffer protection device comprises a mounting plate, a plurality of mounting holes are uniformly formed in the edge of the mounting plate, a mounting groove is formed in one side of the mounting plate, a buffer cushion block is arranged in the mounting groove, and the interior of the mounting groove is connected with the buffer cushion block through a telescopic assembly; the telescopic assembly comprises a plurality of telescopic springs and a plurality of telescopic frames, each telescopic frame comprises a hinge connecting rod set, hinge holes are formed in the two ends of each hinge connecting rod set respectively, any two adjacent hinge connecting rod sets are hinged end to end to form the telescopic frame, and the ends of the telescopic assembly are hinged to the mounting groove and the buffer cushion block respectively. The telescopic springs are connected with the telescopic frames respectively and stretch out and draw back synchronously with the telescopic frames. The buffer protection device of the European-style crane is simple in structure and reasonable in design, can be mounted on the European-style crane, and has a good buffer effect.

Description

Technical Field

[0001] The utility model relates to a lifting auxiliary accessory, in particular to a buffer protection device for a European crane. Background Art

[0002] The concept of European cranes was formed in the industry in recent years, with the purpose of distinguishing them from the so-called domestic, Soviet (Soviet) and traditional cranes in the past. European cranes mainly include: bridge cranes, gantry cranes, cantilever cranes, flexible beam cranes, explosion-proof cranes and other industrial cranes. In order to avoid collision and damage to the equipment, a buffer structure is usually set on the trolley or / bridge of the European crane. For example: a European crane trolley buffer device disclosed in Chinese patent CN204727456U, a European crane trolley buffer protection device disclosed in Chinese patent CN219408980U, and so on. Most of these buffer mechanisms include two groups of pipe sleeve structures connected by springs, one of which is used as a connecting piece and the other as a force-bearing piece. The buffering performance of this structure often depends on factors such as the length and number of springs. The longer the spring length, the better the buffering effect. However, the increase in the length of the spring installed in this structure will make the stability of the buffer structure worse.

[0003] In order to solve the above problems, people have been seeking an ideal technical solution. Utility Model Content

[0004] The utility model aims to provide a buffer protection device for a European crane in view of the deficiencies in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A buffer protection device for a European crane comprises a mounting plate, a plurality of mounting holes are evenly arranged on the edge of the mounting plate, a mounting groove is arranged on one side of the mounting plate, a buffer pad is arranged in the mounting groove, the interior of the mounting groove and the buffer pad are connected through a telescopic assembly; the telescopic assembly comprises a plurality of telescopic springs and a plurality of telescopic frames, each telescopic frame comprises an articulated connecting rod group, hinge holes are respectively arranged at both ends of the articulated connecting rod group, any two adjacent articulated connecting rod groups are hinged end to end to form a telescopic frame, the ends of the telescopic assembly are respectively hinged to the mounting groove and the buffer pad, the telescopic springs are respectively connected to each telescopic frame and are telescopically synchronized with the telescopic frame.

[0007] The hinged connecting rod group in the middle of the telescopic frame includes two connecting long rods, and the middle parts of the two connecting long rods are hinged to form a scissor-shaped structure; the hinged connecting rod group at the end of the telescopic frame includes two connecting short rods, and the ends of the two connecting short rods are hinged to form a V-shaped structure.

[0008] The telescopic assembly is respectively provided with support plates for each hinged connecting rod group corresponding to the telescopic frame. The support plates are parallel and coaxial to each other, and the support plates are connected by hinge shafts hinged at the middle parts of two connecting long rods.

[0009] The telescopic assembly comprises four groups of telescopic frames, and the four groups of telescopic frames are evenly distributed on the outer side of the supporting plate.

[0010] The telescopic spring includes a group of main springs and four groups of auxiliary springs. A mounting through hole is arranged in the middle of the support plate. The main spring passes through each mounting through hole to connect the mounting groove and the buffer pad. Each group of auxiliary springs is respectively connected to two adjacent support plates.

[0011] The buffer pad comprises a hard bottom plate and a flexible block arranged on the hard bottom plate. A plurality of positioning pins are arranged on one side of the hard bottom plate close to the telescopic frame, and a positioning groove is arranged on the side wall of the installation groove corresponding to the positioning pins.

[0012] Compared with the prior art, the utility model has the beneficial effect that the utility model provides a European-style crane buffer protection device with a simple structure and reasonable design, which can be installed on the trolley frame or bridge frame of the European-style crane to achieve a good buffering effect. Specifically, by arranging multiple sets of telescopic frames and support plates between the mounting plate and the buffer pad, it is not only convenient to install the spring to ensure the buffering effect, but also can improve the stability of the buffer structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] In the figure: 1. Mounting plate; 2. Mounting hole; 3. Mounting slot; 4. Buffer pad; 5. Telescopic frame; 51. Connecting long rod; 52. Connecting short rod; 6. Support plate; 7. Main spring; 8. Auxiliary spring; 9. Locating pin. DETAILED DESCRIPTION

[0015] The technical solution of the utility model is further described in detail below through specific implementation methods.

[0016] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. "Installed", "provided with", "connected", etc. can adopt conventional means in the prior art, such as: integral setting, snap-on installation, welding connection, adhesive connection, bolt connection, etc. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances, and suitable connection, setting or installation methods can be selected in the prior art.

[0017] like Figure 1 As shown, a buffer protection device for a European crane includes a mounting plate 1, a plurality of mounting holes 2 are evenly arranged on the edge of the mounting plate 1, a mounting groove 3 is arranged on one side of the mounting plate 1, a buffer pad 4 is arranged in the mounting groove 3, and the inside of the mounting groove 3 and the buffer pad 4 are connected by a telescopic assembly; the telescopic assembly includes a plurality of telescopic springs and a plurality of telescopic frames 5, each telescopic frame 5 includes an articulated connecting rod group, and articulated holes are respectively arranged at both ends of the articulated connecting rod group, and any two adjacent articulated connecting rod groups are hinged end to end to form a telescopic frame 5, and the ends of the telescopic assembly are respectively hinged to the mounting groove 3 and the buffer pad 4, and the telescopic springs are respectively connected to each telescopic frame 5 and are synchronously extended and retracted with the telescopic frame 5. In the natural state without external impact, the telescopic frame is in an extended state, and after being subjected to external force, the telescopic frame contracts.

[0018] The buffer protection device of the European crane has a simple structure and reasonable design, and can be installed on the trolley frame or bridge frame of the European crane to achieve a good buffering effect. Specifically, by arranging multiple sets of telescopic frames and support plates between the mounting plate and the buffer pad, it is not only convenient to install the spring to ensure the buffering effect, but also can improve the stability of the buffer structure.

[0019] In one embodiment, the hinged connecting rod group in the middle of the telescopic frame 5 includes two connecting long rods 51, and the middle parts of the two connecting long rods 51 are hinged to form a scissor-shaped structure; the hinged connecting rod group at the end of the telescopic frame 5 includes two connecting short rods 52, and the ends of the two connecting short rods 52 are hinged to form a V-shaped structure, which facilitates the connection between the two ends of the telescopic frame and the mounting groove and the buffer pad.

[0020] In one of the embodiments, each hinged connecting rod group corresponding to the telescopic frame 5 of the telescopic assembly is respectively provided with a support plate 6, each support plate 6 is parallel and coaxial to each other, and a hinge axis hinged at the middle part of two connecting long rods is connected to the support plate 6, and the stability of the telescopic frame structure is further improved by the mounting plate.

[0021] In one embodiment, the telescopic assembly includes four groups of telescopic frames 5, and the four groups of telescopic frames 5 are evenly distributed on the outside of the support plate 6, so that the buffer structure can be evenly stressed.

[0022] In one embodiment, the telescopic spring includes a group of main springs 7 and four groups of auxiliary springs 8. A mounting through hole is provided in the middle of the support plate 6. The main spring 7 passes through each mounting through hole to connect the mounting slot 3 and the buffer block. Each auxiliary spring 8 is respectively connected to two adjacent support plates 6. Specifically, a group of main springs includes a spring with a larger specification; each of the four groups of auxiliary springs includes a plurality of springs with smaller specifications, which are conveniently evenly distributed on the side of the support plate 6 near the edge of the support plate to improve the stability of the connection structure.

[0023] In one embodiment, the buffer pad 4 includes a hard bottom plate and a flexible block disposed on the hard bottom plate, a plurality of positioning pins 9 are disposed on one side of the hard bottom plate close to the telescopic frame 5, and a positioning groove is disposed on the side wall of the mounting groove 3 corresponding to the positioning pin 9, so that after the positioning pin is retracted to the limit position, the positioning pin is inserted into the positioning groove. Specifically, the flexible block can be made of flexible materials such as polyurethane and rubber.

[0024] The above embodiments can be combined with each other.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A buffer protection device for a European crane, characterized in that: It includes a mounting plate, a plurality of mounting holes are evenly arranged on the edge of the mounting plate, a mounting groove is arranged on one side of the mounting plate, a buffer pad is arranged in the mounting groove, and the interior of the mounting groove and the buffer pad are connected by a telescopic assembly; the telescopic assembly includes a plurality of telescopic springs and a plurality of telescopic frames, each telescopic frame includes an articulated connecting rod group, hinge holes are respectively arranged at both ends of the articulated connecting rod group, any two adjacent articulated connecting rod groups are hinged end to end to form a telescopic frame, the ends of the telescopic assembly are respectively hinged to the mounting groove and the buffer pad, the telescopic springs are respectively connected to each telescopic frame and telescope synchronously with the telescopic frame.

2. The buffer protection device for European crane according to claim 1 is characterized in that: The hinged connecting rod group in the middle of the telescopic frame includes two connecting long rods, and the middle parts of the two connecting long rods are hinged to form a scissor-shaped structure; the hinged connecting rod group at the end of the telescopic frame includes two connecting short rods, and the ends of the two connecting short rods are hinged to form a V-shaped structure.

3. The buffer protection device for European crane according to claim 2 is characterized in that: The telescopic assembly is respectively provided with support plates for each hinged connecting rod group corresponding to the telescopic frame. The support plates are parallel and coaxial to each other, and the support plates are connected by hinge shafts hinged at the middle parts of two connecting long rods.

4. The buffer protection device for European crane according to claim 3 is characterized in that: The telescopic assembly comprises four groups of telescopic frames, and the four groups of telescopic frames are evenly distributed on the outer side of the supporting plate.

5. The buffer protection device for European crane according to claim 4 is characterized in that: The telescopic spring includes a group of main springs and four groups of auxiliary springs. A mounting through hole is arranged in the middle of the support plate. The main spring passes through each mounting through hole to connect the mounting groove and the buffer pad. Each group of auxiliary springs is respectively connected to two adjacent support plates.

6. The buffer protection device for European crane according to claim 5, characterized in that: The buffer pad comprises a hard bottom plate and a flexible block arranged on the hard bottom plate. A plurality of positioning pins are arranged on one side of the hard bottom plate close to the telescopic frame, and a positioning groove is arranged on the side wall of the installation groove corresponding to the positioning pins.

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