Protection device of bridge crane

Abstract

The utility model discloses a protection device of a bridge crane, and relates to the technical field of bridge cranes. The device comprises a box body and four protection plates, the four protection plates are arranged on the outer sides of the four side faces of the box body respectively, a middle buffer is arranged between the middle of each protection plate and the box body, end buffers are arranged between the two ends of each protection plate and the box body, each middle buffer comprises a top block and a set of sliding blocks, a notch is formed in the middle of the inner side of each protection plate, and a guide rod is fixed in each notch. The two sliding blocks are arranged at the two ends of the guide rod in a sliding mode respectively, and a tension spring sleeving the guide rod is fixed between the two sliding blocks. Through the design of end buffering, the air bag bears impact force and counteracts a part of impact when the device is impacted, through the design of middle buffering, when the device is impacted, the sliding block is extruded to slide towards the two sides, buffering is conducted through the tension spring, and the device can be well protected through counteracting of two times of impact force of end buffering and middle buffering. The device stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge crane technical field, especially, relate to a protection device of bridge crane. BACKGROUND

[0002] Bridge crane is one of the indispensable equipment in metallurgical production industry, how to guarantee the use function of bridge crane is very important, in the operation system of bridge crane trolley towing cable, the trolley towing cable supported by towing cable trolley is composed of dozens of cables, dozens of cables are responsible for transmitting the electrical control signal of the whole bridge crane, and the use performance of the whole bridge crane can be affected slightly.

[0003] At present, due to the complex working environment of the crane, the risk is relatively large, there is the risk of goods impact, which is easy to cause goods damage, therefore, a protection device is needed to solve the above problems. SUMMARY

[0004] The utility model discloses a protection device of bridge crane, through the design of end buffering, when being impacted, air bag bears impact force, offsets a part of impact, through the design of middle buffering, when being impacted, sliding block is extruded and slides to both sides, buffering is carried out through tension spring, the offset of the impact force of end buffering and middle buffering can protect the device perfectly, improve the stability of the device.

[0005] To solve the above technical problem, the utility model is realized through the following technical schemes:

[0006] The utility model discloses a protection device of bridge crane, including box and four protective plates,

[0007] Four protective plates are arranged respectively on the outside of four sides of the box, middle buffering is arranged between the middle part of the protective plate and the box, end buffering is arranged between the two ends of the protective plate and the box,

[0008] The middle buffering includes a top block and a group of sliding blocks,

[0009] The middle part of the inner side of the protective plate is provided with a notch, a guide rod is fixed in the notch, two sliding blocks are slidably arranged at the two ends of the guide rod, and a tension spring is fixed between the two sliding blocks and wrapped around the outer part of the guide rod,

[0010] The top block is fixed on the circumferential side of the box, the two side edges of the outer side of the top block are provided with inner slopes, the two sliding blocks are symmetrically arranged on the two sides of the top block, and the sliding blocks are provided with outer slopes that are slidably connected with the inner slopes,

[0011] The end buffering includes a sleeve and a sliding rod,

[0012] One end of the slide rod is fixed inside the protective plate, the sleeve is fixed on the side surface of the box and concentric with the slide rod, the other end of the slide rod penetrates the sleeve and is in sliding connection with the sleeve, one end of the slide rod in the sleeve is fixed with a pressing plate, the sleeve is provided with an air bag, and the air bag is located between the pressing plate and the side surface of the box.

[0013] Further, the air bag is provided with an air port at the end away from the pressing plate, the air port is provided with a valve, and the air ports on the air bags are connected with a main pipe.

[0014] Further, the side surface of the box is provided with a slot, the main pipe is arranged in the slot, and the main pipe is connected with a gas supply connector or a gas pump.

[0015] Further, the sleeve end is provided with a through port, the guide rod penetrates the through port, the outer diameter of the guide rod is consistent with the inner diameter of the through port, and the outer diameter of the pressing plate is consistent with the inner diameter of the sleeve.

[0016] Further, the thickness of the sliding block is consistent with the height of the slot, and the top surface and the bottom surface of the sliding block slide along the top surface and the bottom surface of the slot respectively.

[0017] Further, the back surface of the top block is integrally provided with a flange plate, and the top block is fixed with the box through fasteners and the flange plate.

[0018] The utility model has the following beneficial effects:

[0019] The utility model discloses the design of end buffering, when being impacted, the air bag bears the impact force, offsets a part of impact, through the design of middle buffering, when being impacted, the sliding block is extruded and slides to both sides, and the end buffering and the middle buffering offset the impact force twice, can protect the device perfectly, and improve the device stability.

[0020] The utility model discloses the design of main pipe and air bag upper valve, integrates all air bags and inflates, does not need to connect pipe many times, and the operation of staff is convenient, and can adjust the accurate position of middle buffering and install again and then inflate the air bag, the control of inflation amount is convenient, avoids the problem that inflation in advance causes subsequent installation or gas shortage.

[0021] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0023] Figure 1 A structure diagram of the protective device of the bridge crane of the utility model;

[0024] Figure 2 A structure diagram of the protective plate, the middle buffer and the end buffer;

[0025] Figure 3 A partial enlarged view of the middle buffer position in the utility model;

[0026] Figure 4 A partial enlarged view of the end buffer position in the utility model;

[0027] In the drawings, the components represented by each reference numeral are listed as follows:

[0028] 1 - box, 2 - protective plate, 3 - middle buffer, 4 - end buffer, 5 - main pipe, 101 - slot, 201 - slot, 202 - guide rod, 301 - top block, 302 - sliding block, 303 - tension spring, 304 - inner slope, 305 - outer slope, 401 - sleeve, 402 - slide rod, 403 - pressing plate, 404 - air bag, 405 - valve, 406 - opening. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] Please refer to Figures 1-4 The utility model discloses a protective device of bridge crane, including box 1 and four protective plates 2.

[0031] Four protective plates 2 are arranged respectively on the outside of four sides of box 1, and middle buffer 3 is arranged between the middle part of protective plate 2 and box 1, and end buffer 4 is arranged between the two ends of protective plate 2 and box 1.

[0032] Middle buffer 3 includes top block 301 and a group of sliding blocks 302.

[0033] Slot 201 is arranged in the middle part of the inner side of protective plate 2, guide rod 202 is fixed in slot 201, two sliding blocks 302 are arranged respectively on the two ends of guide rod 202, and tension spring 303 is fixed between two sliding blocks 302 and sleeved on the outer part of guide rod 202.

[0034] The top block 301 is fixed on the side of the box 1, and the two side edges outside the top block 301 are provided with inner slopes 304; the two sliding blocks 302 are symmetrically arranged on the two sides of the top block 301, and the sliding block 302 is provided with an outer slope 305 in sliding connection with the inner slope 304;

[0035] The end buffer 4 comprises a sleeve 401 and a sliding rod 402;

[0036] One end of the sliding rod 402 is fixed inside the protective plate 2, the sleeve 401 is fixed on the side of the box 1 and concentric with the sliding rod 402, the other end of the sliding rod 402 penetrates through the sleeve 401 and is in sliding connection with the sleeve 401, one end of the sliding rod 402 in the sleeve 401 is fixed with a pressing plate 403, the sleeve 401 is provided with an air bag 404, and the air bag 404 is located between the pressing plate 403 and the side of the box 1.

[0037] As shown in Figure 4 , the air bag 404 is provided with an air port at the end away from the pressing plate 403, the air port is provided with a valve 405, and the air ports on the air bags 404 are connected with a main pipe 5, wherein the valve 405 controls the opening and closing of the air bag 404, and is connected with an external controller for control.

[0038] As shown in Figure 1 and Figures 3-4 , the side of the box 1 is provided with a slot 101, and the main pipe 5 is arranged in the slot 101, the main pipe 5 is connected with a gas supply connector or a gas pump, when only the gas supply connector is installed, a plug is installed at the joint after the air bag is inflated, when the gas pump is installed, a gas pump protection box is arranged outside the box for protection, and an air inlet is opened at the corresponding position.

[0039] As shown in Figure 4 , the end of the sleeve 401 is provided with a through port 406, the guide rod 202 penetrates through the through port 406, the outer diameter of the guide rod 202 is consistent with the inner diameter of the through port 406, and the outer diameter of the pressing plate 403 is consistent with the inner diameter of the sleeve 401.

[0040] As shown in Figure 2 , the thickness of the sliding block 302 is consistent with the height in the slot 201, and the top surface and the bottom surface of the sliding block 302 slide along the top surface and the bottom surface in the slot 201 respectively.

[0041] The back of the top block 301 is integrally provided with a flange plate, and the top block 301 is fixed with the box 1 through the fastener and the flange plate.

[0042] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The preferred embodiments of the utility model disclosed above are only used for helping to set forth the utility model. The preferred embodiments do not describe all the details exhaustively, and also do not limit the utility model to only the specific implementation manners described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments, in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited only by the claims and the whole scope and equivalents thereof.

Claims

1. A protective device for a bridge crane, characterized in that: It includes a housing (1) and four protective panels (2); The four protective plates (2) are respectively set on the outer side of the four sides of the box (1). A middle buffer (3) is provided between the middle of the protective plate (2) and the box (1), and an end buffer (4) is provided between the two ends of the protective plate (2) and the box (1). The middle buffer (3) includes a top block (301) and a set of sliders (302); The protective plate (2) has a groove (201) in the middle of its inner side. A guide rod (202) is fixed in the groove (201). Two sliders (302) are slidably disposed at both ends of the guide rod (202). A tension spring (303) is fixed between the two sliders (302) and sleeved on the outside of the guide rod (202). The top block (301) is fixed to the side of the box (1). The two sides of the outer side of the top block (301) are provided with inner slopes (304). The two sliders (302) are symmetrically arranged on both sides of the top block (301). The sliders (302) are provided with outer slopes (305) that are slidably connected to the inner slopes (304). The end buffer (4) includes a sleeve (401) and a slide bar (402). One end of the slide rod (402) is fixed to the inside of the protective plate (2). The sleeve (401) is fixed to the side of the box (1) and is concentric with the slide rod (402). The other end of the slide rod (402) passes through the sleeve (401) and is slidably connected to the sleeve (401). One end of the slide rod (402) is fixed with a pressure plate (403) inside the sleeve (401). An airbag (404) is provided inside the sleeve (401). The airbag (404) is located between the pressure plate (403) and the side of the box (1).

2. The protective device for a bridge crane according to claim 1, characterized in that, The airbag (404) has an air port at the end away from the pressure plate (403), and a valve (405) is provided inside the air port. A main pipe (5) is connected to the air ports on several of the airbags (404).

3. The protective device for a bridge crane according to claim 2, characterized in that, The box body (1) has a slot (101) on its periphery, and the main pipe (5) is set in the slot (101). An air supply connector or an air pump is connected to the main pipe (5).

4. The protective device for a bridge crane according to claim 1, characterized in that, The sleeve (401) has a through-hole (406) at its end, and the guide rod (202) passes through the through-hole (406). The outer diameter of the guide rod (202) is the same as the inner diameter of the through-hole (406), and the outer diameter of the pressure plate (403) is the same as the inner diameter of the sleeve (401).

5. A protective device for a bridge crane according to claim 1, characterized in that, The thickness of the slider (302) is consistent with the height inside the slot (201), and the top and bottom surfaces of the slider (302) slide along the top and bottom surfaces inside the slot (201), respectively.

6. The protective device for a bridge crane according to claim 1, characterized in that, The top block (301) has an integral flange plate on its back side, and the top block (301) is fixed to the box body (1) by fasteners and the flange plate.

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