Anti-collision device of explosion-proof crane

Abstract

The utility model discloses an anti-collision device of an explosion-proof crane, and particularly relates to the technical field of explosion-proof cranes, the anti-collision device comprises two connecting plates, the front and rear parts of the upper ends of the two connecting plates are symmetrically and fixedly connected with hanging rings, and the middle parts of the opposite ends of the two connecting plates are jointly and fixedly connected with a hook; mounting assemblies are symmetrically arranged at the opposite ends of the two connecting plates, buffering assemblies are symmetrically arranged on the opposite sides, away from each other, of the two mounting assemblies, and air bag assemblies are symmetrically arranged on the upper portions and the lower portions of the opposite sides of the two buffering assemblies. According to the anti-collision device of the anti-explosion crane, the buffer assembly is arranged to absorb and diffuse impact force, so that the impact force is relieved, and the situation that the impact force is too large, damage or breakage of the two connecting plates and the hook is caused, and normal use of the hook is affected is prevented; and the arranged air bag assembly is matched with the buffering assembly, so that the force generated by collision is further relieved.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof crane technology, and in particular to an anti-collision device for explosion-proof cranes. Background Technology

[0002] Explosion-proof cranes are widely used in potentially explosive environments such as petroleum, chemical, natural gas, coal mines, food, aerospace, power, and biochemical laboratories. In these environments, the presence of flammable and explosive chemicals or gases means that using ordinary cranes could cause fires and explosions, while explosion-proof cranes can perform lifting operations under safe conditions.

[0003] In lifting operations, the hook is the part that comes into direct contact with the object being lifted, bearing the weight and impact of the load. If the hook collides with other objects during operation, it may deform, crack, or even break, thereby damaging the crane equipment. Explosion-proof cranes are usually used in environments with potential explosion hazards. Damage to the equipment will not only cause economic losses, but may also lead to more serious safety accidents.

[0004] Chinese Patent Publication No. CN221662477U relates to the field of crane anti-collision technology and discloses a visual blind spot anti-collision device for construction cranes, including: a crane, with rollers movably mounted on both sides of the bottom of the crane; an anti-collision mechanism located on the right side of the crane; and a braking mechanism located below the crane; wherein the anti-collision mechanism includes a mounting plate, which is fixedly installed on the right end of the crane. The utility model described in the above-mentioned document, by setting up a fixed block, a first circular block, and an inclined block, works so that when the pad block collides with the baffle, it is squeezed to the left, thereby squeezing the first spring. Simultaneously, the fixed block and the first circular block move to the left, further squeezing the inner wall of the inclined block. This causes the two inclined blocks to drive two sliders to move in opposite directions and squeeze the second spring, absorbing the collision force. Ultimately, this achieves the effect of preventing the crane's visual blind spot from directly colliding with objects and mitigating the impact, thus protecting the crane.

[0005] The aforementioned device does not have a collision-proof structure for the crane hook. During lifting operations, the crane hook is likely to collide with other objects. Too many collisions will cause damage or breakage to the hook, which not only reduces the service life of the hook, but also poses a safety hazard when using a damaged hook for lifting operations. Utility Model Content

[0006] The main purpose of this utility model is to provide an anti-collision device for explosion-proof cranes, which can effectively solve the problem that the hooks of explosion-proof cranes lack anti-collision structures and are easily damaged by collisions.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] An anti-collision device for an explosion-proof crane includes two connecting plates. Lifting rings are symmetrically fixedly connected to the front and rear parts of the upper ends of the two connecting plates. Hooks are fixedly connected to the middle of the opposite ends of the two connecting plates. Mounting components are symmetrically arranged on the opposite ends of the two connecting plates. Buffering components are symmetrically arranged on the opposite side of the two mounting components. Airbag components are symmetrically arranged on the upper and lower parts of the opposite side of the two buffering components.

[0009] Preferably, the mounting assembly includes two rectangular shells and a mounting plate. The two rectangular shells are fixedly connected to the front and rear parts of the left end of the left connecting plate, respectively. Each of the two rectangular shells has several round holes at its left end. The mounting plate has insert plates symmetrically fixedly connected to the front and rear parts of its right end. Each of the two insert plates has several threaded holes at its right end. The two insert plates are respectively engaged with the inner surfaces of the two rectangular shells. The mounting plate has several threaded holes at its left end. The inner surfaces of the round holes, threaded holes, and threaded holes on the same side are all threadedly connected to threaded rods. Each of the threaded rods has a rotating block fixedly connected to its left end.

[0010] Preferably, the number of circular holes and the number of threaded holes are the same, the number of threaded holes is twice the number of circular holes and the number of threaded holes, the circular holes and the threaded holes are arranged in a linear array, and the threaded holes are arranged in a rectangular array.

[0011] Preferably, several rubber blocks are fixedly connected to the outer surface of each of the rotating blocks, and the rubber blocks on the same side are arranged in an arc-shaped array.

[0012] Preferably, the buffer assembly includes a baffle, a rubber plate is fixedly connected to the left end of the baffle, and springs are fixedly connected to the four corners of the right end of the baffle. All four springs are fixedly connected to the left end of the mounting plate.

[0013] Preferably, each of the four corners of the right end of the baffle is fixedly connected to a telescopic rod, and the four springs are respectively sleeved on the outer surface of the four telescopic rods. The four telescopic rods are fixedly connected to the left end of the mounting plate.

[0014] Preferably, the airbag assembly includes an inflation cylinder and an airbag. The inflation cylinder and the airbag are both fixedly connected to the upper middle part of the left end of the mounting plate. The inflation cylinder and the airbag are both fixedly connected to the upper middle part of the right end of the baffle. A through air inlet pipe is fixedly connected to the lower side of the outer surface of the inflation cylinder. The air inlet pipe is fixedly connected to and through the outer surface of the airbag.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The buffer component of this utility model absorbs and diffuses the impact force, thereby reducing the force generated by the collision and preventing excessive force from causing damage or breakage to the two connecting plates and the hook, thus affecting the normal use of the hook; the airbag component, in conjunction with the buffer component, further reduces the impact force and improves the effect of reducing the impact force.

[0017] 2. The telescopic rod provided by this utility model provides horizontal support to the spring, so that when the rubber plate is impacted and all four springs deform, the baffle will not shake due to the deformation of the four springs, while ensuring the stability of the process of the air cylinder inflating the airbag and drawing the gas out of the airbag. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partial structural schematic diagram of the present invention;

[0020] Figure 3 This is an exploded view of the installation component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the buffer component structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the airbag assembly structure of this utility model.

[0023] In the diagram: 1. Connecting plate; 2. Lifting ring; 3. Hook; 4. Mounting assembly; 41. Rectangular shell; 42. Round hole; 43. Insert plate; 44. Threaded hole one; 45. Mounting plate; 46. Threaded hole two; 47. Threaded rod; 48. Rubber block; 49. Rotating block; 5. Buffer assembly; 51. Baffle; 52. Rubber plate; 53. Spring; 54. Telescopic rod; 6. Airbag assembly; 61. Inflator; 62. Inlet pipe; 63. Airbag. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1 and Figure 2As shown, an anti-collision device for an explosion-proof crane includes two connecting plates 1. Lifting rings 2 are symmetrically fixedly connected to the front and rear parts of the upper ends of the two connecting plates 1. Hooks 3 are fixedly connected to the middle of the opposite ends of the two connecting plates 1. Mounting components 4 are symmetrically arranged at the opposite ends of the two connecting plates 1. Buffer components 5 are symmetrically arranged on the opposite side of the two mounting components 4. Airbag components 6 are symmetrically arranged on the upper and lower parts of the opposite side of the two buffer components 5.

[0026] In practice, the steel cable in the explosion-proof crane is connected to this device using four lifting rings 2. When using this device for lifting operations, the goods can be hung in the hooks 3.

[0027] Two mounting components 4 are used to install two buffer components 5 and four airbag components 6 on two connecting plates 1 respectively. During hoisting, when the device is hit by a collision, the buffer components 5 and the two airbag components 6 on the same side will reduce the impact force and prevent the device from being damaged by the collision.

[0028] Specifically, in order to mitigate the impact force on the hook device of the explosion-proof crane and prevent excessive impact force from damaging the hook device, please refer to... Figure 3 The mounting assembly 4 includes two rectangular shells 41 and a mounting plate 45. The two rectangular shells 41 are fixedly connected to the front and rear parts of the left end of the left connecting plate 1, respectively. Each of the two rectangular shells 41 has several round holes 42 on its left end. The mounting plate 45 has insert plates 43 symmetrically fixedly connected to the front and rear parts of its right end. Each of the two insert plates 43 has several threaded holes 44 on its right end. The two insert plates 43 are respectively engaged with the inner surfaces of the two rectangular shells 41. The mounting plate 45 has several threaded holes 46 on its left end. The inner surfaces of the round holes 42, threaded holes 44, and threaded holes 46 on the same side are all... A threaded rod 47 is connected to the threaded rod 47, and a rotating block 49 is fixedly connected to the left end of each threaded rod 47; the number of circular holes 42 is the same as the number of threaded holes 44, and the number of threaded holes 46 is twice the number of circular holes 42 and threaded holes 44; the circular holes 42 and threaded holes 44 are arranged in a linear array, and the threaded holes 46 are arranged in a rectangular array; a number of rubber blocks 48 are fixedly connected to the outer surface of each rotating block 49, and the rubber blocks 48 on the same side are arranged in an arc array.

[0029] Further reading Figure 4 The buffer assembly 5 includes a baffle 51, a rubber plate 52 fixedly connected to the left end of the baffle 51, and springs 53 fixedly connected to the four corners of the right end of the baffle 51. The four springs 53 are fixedly connected to the left end of the mounting plate 45. Telescopic rods 54 are fixedly connected to the four corners of the right end of the baffle 51. The four springs 53 are respectively sleeved on the outer surface of the four telescopic rods 54. The four telescopic rods 54 are fixedly connected to the left end of the mounting plate 45.

[0030] Further reading Figure 5 The airbag assembly 6 includes an inflation cylinder 61 and an airbag 63. Both the inflation cylinder 61 and the airbag 63 are fixedly connected to the upper middle part of the left end of the mounting plate 45. Both the inflation cylinder 61 and the airbag 63 are fixedly connected to the upper middle part of the right end of the baffle 51. An air inlet pipe 62 is fixedly connected to the lower side of the outer surface of the inflation cylinder 61. The air inlet pipe 62 is fixedly connected to and passes through the outer surface of the airbag 63.

[0031] The four air cylinders 61 mentioned above are all composed of an air cylinder and a piston rod, and the air cylinders of the four air cylinders 61 are all filled with gas;

[0032] In the specific implementation, the two insert plates 43 are respectively inserted into the two rectangular shells 41. At this time, the several round holes 42, several threaded holes 44 and several threaded holes 46 are in a one-to-one correspondence. The threaded rod 47 is inserted into the threaded hole 46, and the rotating block 49 is rotated clockwise. Several rubber blocks 48 can make the process of rotating the rotating block 49 more comfortable. In this way, the two insert plates 43, the two rectangular shells 41 and the mounting plate 45 are fixed together by several threaded rods 47, so that the buffer assembly 5 and the two airbag assemblies 6 are installed on the connecting plate 1.

[0033] Repeat the above operation to install the additional buffer assembly 5 and the two airbag assemblies 6 on another connecting plate 1;

[0034] When this device is subjected to a collision, the foreign object will hit the rubber plate 52. The impact force will cause the baffle 51 to move closer to the connecting plate 1, thereby causing the four springs 53 to deform and be in a compressed state. The deformation of the baffle 51 and the four springs 53 will absorb and diffuse the impact force, thereby reducing the force generated by the collision and preventing the force generated by the collision from being too large, causing damage or breakage to the two connecting plates 1 and the hook 3, and affecting the normal use of the hook 3.

[0035] When the baffle 51 moves toward the connecting plate 1, the piston rods in both air cylinders 61 move toward the connecting plate 1, so that the gas in the two air cylinders 61 is pressed into the two air bags 63 respectively, so that both air bags 63 are filled with air, thereby absorbing the force generated by the impact, and further reducing the force generated by the impact. In conjunction with the buffer component 5, the effect of reducing the force generated by the impact is improved.

[0036] After the rubber plate 52 is no longer impacted, the reaction force of the four springs 53 causes the baffle 51 to move away from the connecting plate 1, so that the baffle 51 returns to its initial state.

[0037] During this process, the baffle 51 will cause the piston rods in the two air cylinders 61 to slide away from the connecting plate 1, and draw the gas that entered the two air bags 63 back into the two air cylinders 61, so that the two air cylinders 61 and the two air bags 63 return to their initial state.

[0038] The four telescopic rods 54 provide horizontal support to the four springs 53 respectively, so that when the rubber plate 52 is impacted and all four springs 53 are deformed, the baffle 51 will not shake due to the deformation of the four springs 53, and at the same time ensure the stability of the process of the air cylinder 61 inflating the airbag 63 and drawing the gas out of the airbag 63.

[0039] The working principle of this utility model is as follows:

[0040] Insert two insert plates 43 into two rectangular shells 41 respectively, and use several threaded rods 47 to fix the two insert plates 43, the two rectangular shells 41 and the mounting plate 45 together, so that the buffer assembly 5 and the two airbag assemblies 6 are installed on the connecting plate 1. Repeat the above operation to install another buffer assembly 5 and two airbag assemblies 6 on another connecting plate 1.

[0041] When the device is subjected to a collision, the foreign object will hit the rubber plate 52. The impact force will cause the baffle 51 to move closer to the connecting plate 1, thereby causing the four springs 53 to deform and be in a compressed state, thus reducing the impact force.

[0042] During this process, the gas in the two inflation cylinders 61 will enter the two airbags 63 respectively, so that both airbags 63 are filled with air, further reducing the force generated by the impact.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A collision avoidance device for an explosion-proof crane, comprising two connecting plates (1), characterized in that: The two connecting plates (1) are symmetrically fixed with lifting rings (2) at the front and rear of the upper end. The two connecting plates (1) are fixedly fixed with hooks (3) at the middle of opposite ends. The two connecting plates (1) are symmetrically provided with installation components (4) at opposite ends. The two installation components (4) are symmetrically provided with buffer components (5) on opposite sides away from each other. The two buffer components (5) are symmetrically provided with airbag components (6) on opposite sides at the top and bottom.

2. The anti-collision device for an explosion-proof crane according to claim 1, characterized in that: The mounting assembly (4) includes two rectangular shells (41) and a mounting plate (45). The two rectangular shells (41) are fixedly connected to the front and rear of the left end of the connecting plate (1) on the left side. The left end of each of the two rectangular shells (41) is provided with several round holes (42). The front and rear of the right end of the mounting plate (45) are symmetrically fixedly connected with insert plates (43). The right end of each of the two insert plates (43) is provided with several threaded holes (44). The two insert plates (43) are respectively engaged with the inner surfaces of the two rectangular shells (41). The left end of the mounting plate (45) is provided with several threaded holes (46). The inner surfaces of the round holes (42), threaded holes (44), and threaded holes (46) on the same side are all threadedly connected with threaded rods (47). The left ends of the several threaded rods (47) are all fixedly connected with rotating blocks (49).

3. The anti-collision device for an explosion-proof crane according to claim 2, characterized in that: The number of circular holes (42) is the same as the number of threaded holes (44), and the number of threaded holes (46) is twice the number of circular holes (42) and threaded holes (44). The circular holes (42) and threaded holes (44) are arranged in a linear array, and the threaded holes (46) are arranged in a rectangular array.

4. The anti-collision device for an explosion-proof crane according to claim 2, characterized in that: Several rubber blocks (48) are fixedly connected to the outer surface of several rotating blocks (49), and several rubber blocks (48) on the same side are arranged in an arc-shaped array.

5. The anti-collision device for an explosion-proof crane according to claim 2, characterized in that: The buffer assembly (5) includes a baffle (51), a rubber plate (52) is fixedly connected to the left end of the baffle (51), and springs (53) are fixedly connected to the four corners of the right end of the baffle (51). All four springs (53) are fixedly connected to the left end of the mounting plate (45).

6. The anti-collision device for an explosion-proof crane according to claim 5, characterized in that: The four corners of the right end of the baffle (51) are fixedly connected to telescopic rods (54), and the four springs (53) are respectively sleeved on the outer surface of the four telescopic rods (54). The four telescopic rods (54) are fixedly connected to the left end of the mounting plate (45).

7. The anti-collision device for an explosion-proof crane according to claim 5, characterized in that: The airbag assembly (6) includes an inflation cylinder (61) and an airbag (63). The inflation cylinder (61) and the airbag (63) are both fixedly connected to the upper middle part of the left end of the mounting plate (45). The inflation cylinder (61) and the airbag (63) are both fixedly connected to the upper middle part of the right end of the baffle (51). A through air inlet pipe (62) is fixedly connected to the lower side of the outer surface of the inflation cylinder (61). The air inlet pipe (62) is fixedly connected to and through the outer surface of the airbag (63).

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