Novel lifting height limiter for crane

Abstract

The utility model relates to a novel lifting height limiter for a crane, and belongs to the technical field of cranes, the novel lifting height limiter comprises a lifting rope, a positioning block, a limiter body and a fixing rope, a limiting hanging ring is fixed to the bottom of the limiter body, a connecting rod is fixedly connected to the top of the limiting hanging ring, and a rope limiting groove is fixed to the top of the connecting rod; a set of locking mechanism is fixed to one side of the limiting stopper body. Through the arrangement of the rope limiting groove, when the device is used, a lifting rope is clamped in the rope limiting groove, during lifting, when a rope positioning block reaches the position of a limiting hanging ring, the limiting hanging ring is pushed, the rope stops rising, and when the rope is obliquely pulled, the rope positioning block cannot make contact with the limiting hanging ring to continue rising and reaches the rope limiting groove; the rope is clamped in the rope limiting groove, so that the positioning block on the rope pushes the rope limiting groove, the limiting hanging ring is pulled, the rope stops rising, and top rushing is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cranes, in particular to a novel lifting height limiter for cranes. BACKGROUND

[0002] At present, when a small crane is used, a lifting height limiter is needed to limit the position of the lifted object. The existing lifting height limiter is relatively cumbersome to install, and during the lifting of the rope, the rope positioning block cannot accurately push the switch of the lifting limiter to close the lifting process, causing problems such as the positioning block hitting the top.

[0003] According to the related technology in the above, the inventor believes that the following defects exist: the existing lifting height limiter is relatively cumbersome to install, and the positioning block cannot accurately push the lifting height limiter when it is inclined, causing the top to be hit. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to provide a novel lifting height limiter for cranes to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides a novel lifting height limiter for cranes, which adopts the following technical solution:

[0006] A novel lifting height limiter for cranes, comprising a lifting rope, a positioning block, a limiter body and a fixed rope, the bottom of the limiter body is fixed with a limiting hanging ring, the top of the limiting hanging ring is fixedly connected with a connecting rod, the top of the connecting rod is fixed with a rope limiting groove, and one side of the limiter body is fixed with a set of locking mechanisms.

[0007] The locking mechanism comprises an L-shaped fixing frame, a clamping rod, a screw and a spring, one side of the limiter body is fixed with an L-shaped fixing frame, the end of the L-shaped fixing frame away from the limiter body is hinged with a clamping rod, the end of the clamping rod close to the limiter body is connected with the L-shaped fixing frame through a bolt, and the L-shaped fixing frame and the clamping rod are fixedly connected with a spring.

[0008] By adopting the above technical solution, the rope limiting groove avoids the rope being inclined when lifting, which cannot push the limiting hanging ring and causes the top to be hit. The locking mechanism facilitates the fixed rope to be put into the space between the clamping rod and the L-shaped fixing frame by opening the clamping rod, and then the clamping rod and the L-shaped fixing frame are fixed by the screw, so as to tighten the fixed rope and facilitate the installation of the lifting height limiter.

[0009] Preferably, the end of the rope limiting groove away from the connecting rod is fixed with a limiting rod hinged on one side of the rope limiting groove, and the limiting rod is fixed on the other side of the rope limiting groove through a bolt.

[0010] By adopting the technical scheme, the lifting rope can be well positioned in the rope limiting groove.

[0011] Preferably, the L-shaped fixing frame and the inner side of the clamping rod are both provided with a circular arc groove.

[0012] By adopting the technical scheme, the position of the fixed rope is conveniently limited, and sliding is avoided.

[0013] Preferably, the limiting hanging ring and the rope limiting groove bottom are both fixed with a rubber layer.

[0014] By adopting the technical scheme, the positioning block on the lifting rope avoids too fast impact on the limiting hanging ring and the rope limiting groove when rising, thereby avoiding damage to the limiting hanging ring and the rope limiting groove.

[0015] Preferably, the rope limiting groove comprises a first limiting groove and a second limiting groove, the first limiting groove is fixed at the top of the connecting rod, and the second limiting groove is slidingly arranged in the first limiting groove and fixed with the first limiting groove through a bolt.

[0016] By adopting the technical scheme, the position of the second limiting groove in the first limiting groove can be adjusted according to the size of the positioning block on the lifting rope, thereby adjusting the position between the positioning block on the lifting rope and the limiting hanging ring.

[0017] Preferably, the limiting rod is fixed at the end of the second limiting groove.

[0018] By adopting the technical scheme, the lifting rope is conveniently limited.

[0019] In summary, the present application has at least one of the following beneficial technical effects:

[0020] 1. By arranging the rope limiting groove, the lifting rope is clamped in the rope limiting groove when the device is used. When lifting, the rope positioning block pushes the limiting hanging ring when reaching the position of the limiting hanging ring, and the rope stops rising. When the rope is inclined, the rope positioning block cannot contact the limiting hanging ring to continue rising, and reaches the rope limiting groove. Since the rope is clamped in the rope limiting groove, the positioning block on the rope pushes the rope limiting groove, thereby pulling the limiting hanging ring, so that the rope stops rising and avoids hitting the top;

[0021] 2. By arranging the locking mechanism, the clamping rod is conveniently opened, the fixed rope is clamped between the clamping rod and the L-shaped fixing frame, and then fixed through a screw. The installation is convenient, and the spring plays a certain tensioning role when the screw is loosened. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 It is a structure schematic diagram for embodying the whole in the embodiment of the present application.

[0023] Fig. 2 is a schematic diagram of the overall top view structure in the embodiment of the present application.

[0024] Fig. 3 is a schematic diagram of the locking mechanism in the embodiment of the present application.

[0025] The reference signs are as follows: 1, lifting rope; 2, positioning block; 3, position limiter body; 4, fixed rope; 5, limiting hanging ring; 6, connecting rod; 7, rope limiting groove; 71, first limiting groove; 72, second limiting groove; 8, locking mechanism; 81, L-shaped fixing frame; 82, clamping rod; 83, screw; 84, spring; 85, circular arc groove; 9, limiting rod; 10, rubber layer. DETAILED DESCRIPTION

[0026] The following will be described in detail in combination with the accompanying Figs. 1-3 The present application is further described in detail.

[0027] The embodiment of the present application discloses a novel lifting height position limiter for a crane, which refers to Figs. 1-3 , comprising a lifting rope 1, a positioning block 2, a position limiter body 3 and a fixed rope 4, the bottom of the position limiter body 3 is fixed with a limiting hanging ring 5, the top of the limiting hanging ring 5 is fixedly connected with a connecting rod 6, and the top of the connecting rod 6 is fixed with a rope limiting groove 7, which is beneficial to limit the position of the lifting rope 1 and avoid top collision, one side of the position limiter body 3 is fixed with a set of locking mechanisms 8, and the bottom of the limiting hanging ring 5 and the rope limiting groove 7 is fixed with a rubber layer 10, which plays a good protection effect.

[0028] The locking mechanism 8 comprises an L-shaped fixing frame 81, a clamping rod 82, a screw 83 and a spring 84, one side of the position limiter body 3 is fixed with the L-shaped fixing frame 81, one end of the L-shaped fixing frame 81 away from the position limiter body 3 is hingedly connected with the clamping rod 82, one end of the clamping rod 82 close to the position limiter body 3 is connected with the L-shaped fixing frame 81 through a bolt, and the spring 84 is fixedly connected between the L-shaped fixing frame 81 and the clamping rod 82, which is more convenient to install, and the inner sides of the L-shaped fixing frame 81 and the clamping rod 82 are both provided with a circular arc groove 85, which is beneficial to limit the position of the fixed rope 4.

[0029] Referring to Figs. 1-2 , one end of the rope limiting groove 7 away from the connecting rod 6 is fixed with a limiting rod 9 hingedly connected to one side of the rope limiting groove 7, the limiting rod 9 is fixed to the other side of the rope limiting groove 7 through a bolt, and it is convenient to put the lifting rope 1 into the rope limiting groove 7.

[0030] Referring to Figs. 1-2The rope limiting groove 7 comprises a first limiting groove 71 and a second limiting groove 72, the first limiting groove 71 is fixed on the top of the connecting rod 6, the second limiting groove 72 is slidingly arranged in the first limiting groove 71 and is fixed with the first limiting groove 71 through a bolt, the limiting rod 9 is fixed on the end of the second limiting groove 72, the position between the positioning block 2 on the lifting rope 1 and the limiting hanging ring 5 is adjusted by adjusting the position of the second limiting groove 72 in the first limiting groove 71.

[0031] The implementation principle of the novel lifting height limiter for the crane is as follows:

[0032] When the device is used, the clamping rods 82 of the locking mechanism 8 are opened, the fixed rope 4 is clamped between the two clamping rods 82 and the L-shaped fixing frame 81, the screw 83 is tightened, and then the fixed rope 4 is locked in the circular arc groove 85, the lifting rope 1 is placed in the rope limiting groove 7, and then the limiting rod 9 is fixed to limit the lifting rope 1, the position of the second limiting groove 72 on the first limiting groove 71 is adjusted according to the distance between the positioning block 2 and the limiting hanging ring 5, when in use, the lifting rope 1 rises, the positioning block 2 rises, reaches the position of the limiter body 3, pushes the limiting hanging ring 5, and the lifting rope 1 stops, when the cable-stayed occurs, the positioning block 2 cannot push the limiting hanging ring 5 to continue to rise, and rises to the rope limiting groove 7, and the limiting hanging ring 5 is driven under the action of the rope limiting groove 7, and then the lifting rope 1 stops, effectively avoiding the top collision.

[0033] The above are the preferred embodiments of the present application, and are not limited to the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle and application direction of the present application should be covered in the protection scope of the present application.

Claims

1. A new type of lifting height limiter for a crane, comprising a lifting rope (1), a positioning block (2), a limiter body (3) and a fixed rope (4), characterized in that: The stopper body (3) is fixed with a limiting hanging ring (5) at the bottom, the limiting hanging ring (5) is fixedly connected with a connecting rod (6) at the top, the connecting rod (6) is fixed with a rope limiting groove (7) at the top, and the stopper body (3) is fixed with a group of locking mechanisms (8) on one side. The locking mechanism (8) comprises an L-shaped fixing frame (81), a clamping rod (82), a screw (83) and a spring (84), the stopper body (3) is fixed with the L-shaped fixing frame (81) on one side, the L-shaped fixing frame (81) is hingedly connected with the clamping rod (82) away from one end of the stopper body (3), one end of the clamping rod (82) close to the stopper body (3) is connected with the L-shaped fixing frame (81) through a bolt, and the spring (84) is fixedly connected between the L-shaped fixing frame (81) and the clamping rod (82).

2. The new lifting height limiter for cranes according to claim 1, characterized in that: The rope limiting groove (7) is fixed with a limiting rod (9) hinged on one side of the rope limiting groove (7) away from the connecting rod (6), and the limiting rod (9) is fixed on the other side of the rope limiting groove (7) through a bolt.

3. The new lifting height limiter for cranes according to claim 2, characterized in that: The inner sides of the L-shaped fixing frame (81) and the clamping rod (82) are both provided with a circular groove (85).

4. The new lifting height limiter for cranes according to claim 3, characterized in that: The limiting hanging ring (5) and the rope limiting groove (7) are both fixed with a rubber layer (10) at the bottom.

5. The new lifting height limiter for cranes according to claim 4, characterized in that: The rope limiting groove (7) comprises a first limiting groove (71) and a second limiting groove (72), the first limiting groove (71) is fixed at the top of the connecting rod (6), and the second limiting groove (72) is slidably arranged in the first limiting groove (71) and fixed with the first limiting groove (71) through a bolt.

6. The new lifting height limiter for cranes according to claim 5, characterized in that: The limiting rod (9) is fixed at the end of the second limiting groove (72).

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