A-shaped frame fixing device

Abstract

The utility model relates to the technical field of A-shaped frames, in particular to an A-shaped frame fixing device which comprises an A-shaped frame body, a pulley retainer is arranged on the outer side of the A-shaped frame body, a first pulley is arranged in the pulley retainer, and the first pulley is connected with the pulley retainer through a buffering assembly. The end, away from the pulley retainer, of the A-shaped frame body is rotationally connected with a pulley block, and the interior of the pulley block is rotationally connected with multiple sets of second pulleys. The buffering assembly is used for conducting buffering treatment on the first pulley, the buffering assembly is composed of connecting blocks, a fixing rod, a buffering spring, a first elastic small ball and a second elastic small ball, and the two sets of connecting blocks are rotationally connected to the two ends of the first pulley correspondingly; the two sets of fixing rods are located at the two ends of the connecting block respectively and located in the pulley retainer, and compared with an existing A-shaped frame, the overall practicability of the A-shaped frame can be improved through the design.

Description

Technical Field

[0001] The utility model relates to the technical field of A-type frames, in particular to an A-type frame fixing device. Background Art

[0002] A-frames for ships are large-scale equipment used for deploying and recovering equipment. They are generally installed on both sides of the aft deck. They have high strength and rigidity requirements for the structure at the installation site. Existing A-frames on ships are usually fixed by double ropes, and the tension on the ropes cannot be self-adjusted. During operation, the different tensions on the two ropes will cause uneven force on the A-frame, affecting its structural stability and posing a safety hazard. Therefore, it is particularly important to improve the existing A-frames and design a new A-frame fixing device to address the above technical defects and improve the practicality of the entire A-frame. Utility Model Content

[0003] The purpose of the utility model is to provide an A-frame fixing device, which can balance the tension of the wire rope with only one movable pulley under minimal structural changes, so that the A-frame is evenly stressed, greatly improving the safety factor of the A-frame, and has a simple structure, low cost and high benefits, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] An A-frame fixing device includes an A-frame body, a pulley holder is provided on the outside of the A-frame body, a first pulley is provided inside the pulley holder, the first pulley is connected to the pulley holder through a buffer assembly, a pulley block is rotatably connected to one end of the A-frame body away from the pulley holder, and a plurality of second pulley blocks are rotatably connected inside the pulley block;

[0006] The buffer assembly is used to perform buffering processing on the first pulley.

[0007] As a preferred solution of the present invention, the buffer assembly consists of a connecting block, a fixed rod, a buffer spring, a first elastic ball and a second elastic ball. The two groups of the connecting blocks are respectively rotatably connected to the two ends of the first pulley, the two groups of the fixed rods are respectively located at the two ends of the connecting block and located inside the pulley holder, the buffer spring is located on the outside of the fixed rod and located inside the connecting block, the first elastic ball is located on the outside of the fixed rod and located inside the buffer spring, and the second elastic ball is located inside the buffer spring and away from one end of the first elastic ball.

[0008] As a preferred solution of the present invention, two groups of accommodating grooves are provided inside the connecting block, the internal structure size of the accommodating grooves is designed to correspond to the external structure size of the fixing rod, and the connecting block is connected to the fixing rod through the accommodating grooves.

[0009] As a preferred solution of the present invention, the fixing rod is connected to the buffer spring through a receiving groove, and the external structure size of the first elastic ball and the second elastic ball are designed to correspond to the internal structure size of the buffer spring.

[0010] As a preferred solution of the present invention, one end of the fixing rod away from the connecting block is fixedly connected to the pulley holder.

[0011] As a preferred solution of the present invention, the first pulley and the second pulley are rotatably connected to the connecting block and the pulley assembly respectively through bearings.

[0012] As a preferred solution of the present invention, one end of the pulley holder close to the A-frame body is fixedly connected to a holder shaft, and one end of the holder shaft away from the pulley holder is fixedly connected to the A-frame body.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The present invention provides a novel overall design. During operation, since the first pulley and the second pulley only change the direction of the force, the tension of the steel wire ropes on both sides of the first pulley is always consistent. The design of the first pulley and the second pulley in the middle position of the A-frame body also ensures the stability of the tension thereon, making the overall force of the A-frame body more balanced, thereby greatly improving the safety factor of the A-frame body. When the first pulley is in use, the buffer assembly can buffer the first pulley, and the buffer spring can buffer the fixing rod. When the connecting block is displaced, the accommodating groove enables it to be slidably connected to the outside of the fixing rod. When the accommodating groove is displaced, the first elastic ball on the outside of the fixing rod can contact with the second elastic ball, squeezing the second elastic ball, causing the first elastic ball and the second elastic ball to deform. The deformed first elastic ball and the second elastic ball contact the inner wall of the buffer spring, so that the fixing rod can be further buffered, thereby reducing the influence of the steel wire rope on the first pulley. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the pulley cage of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the buffer component of the utility model.

[0018] In the figure: 1. A-frame body; 2. pulley holder; 3. first pulley; 4. buffer assembly; 5. pulley block; 6. second pulley; 7. connecting block; 8. fixing rod; 9. buffer spring; 10. first elastic ball; 11. second elastic ball; 12. receiving groove; 13. holder shaft. DETAILED DESCRIPTION

[0019] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Example

[0020] See also Figure 1-Figure 3 , the utility model provides a technical solution:

[0021] An A-frame fixing device includes an A-frame body 1, a pulley holder 2 is provided on the outside of the A-frame body 1, a first pulley 3 is provided inside the pulley holder 2, the first pulley 3 is connected to the pulley holder 2 via a buffer assembly 4, and a pulley block 5 is rotatably connected to the end of the A-frame body 1 away from the pulley holder 2, and a plurality of second pulley groups 6 are rotatably connected to the inside of the pulley block 5;

[0022] The buffer assembly 4 is used to perform buffering on the first pulley 3 .

[0023] Furthermore, the buffer assembly 4 is composed of a connecting block 7, a fixed rod 8, a buffer spring 9, a first elastic ball 10 and a second elastic ball 11. The two groups of connecting blocks 7 are respectively rotatably connected to the two ends of the first pulley 3, and the two groups of fixed rods 8 are respectively located at the two ends of the connecting block 7 and located inside the pulley retainer 2. The buffer spring 9 is located on the outside of the fixed rod 8 and located inside the connecting block 7. The first elastic ball 10 is located on the outside of the fixed rod 8 and located inside the buffer spring 9. The second elastic ball 11 is located inside the buffer spring 9 and away from one end of the first elastic ball 10. When the first pulley 3 is in use, the first pulley 3 can be buffered by the buffer assembly 4, thereby reducing the influence of the wire rope on the first pulley 3 and increasing the service life of the first pulley 3.

[0024] Among them, two groups of accommodating grooves 12 are opened inside the connecting block 7, and the internal structure size of the accommodating grooves 12 is designed to correspond to the external structure size of the fixing rod 8. The connecting block 7 is connected to the fixing rod 8 through the accommodating grooves 12, and the fixing rod 8 is slidably connected to the accommodating grooves 12, so that the fixing rod 8 can be connected to the connecting block 7, thereby enabling the first pulley 3 to be connected to the fixing rod 8.

[0025] Secondly, the fixing rod 8 is connected to the buffer spring 9 through the accommodating groove 12. The external structure size of the first elastic ball 10 and the second elastic ball 11 are designed to correspond to the internal structure size of the buffer spring 9. When the fixing rod 8 is slidably connected to the accommodating groove 12, the fixing rod 8 can be connected to the buffer spring 9, and the fixing rod 8 can be buffered by the buffer spring 9. When the connecting block 7 is displaced, the slidable connection can be performed on the outside of the fixing rod 8 through the accommodating groove 12. When the accommodating groove 12 is displaced, the first elastic ball 10 on the outside of the fixing rod 8 can contact with the second elastic ball 11, squeezing the second elastic ball 11, causing the first elastic ball 10 and the second elastic ball 11 to deform. The deformed first elastic ball 10 and the second elastic ball 11 contact the inner wall of the buffer spring 9, so that the fixing rod 8 can be further buffered.

[0026] Furthermore, the end of the fixing rod 8 away from the connecting block 7 is fixedly connected to the pulley holder 2. By fixing the fixing rod 8 to the pulley holder 2, the connecting block 7 can be connected to the pulley holder 2, thereby enabling the first pulley 3 to be connected to the pulley holder 2.

[0027] Furthermore, the first pulley 3 and the second pulley 6 are rotatably connected to the connecting block 7 and the pulley group 5 respectively through bearings. By connecting the first pulley 3 and the second pulley 6 to the bearings respectively, when the first pulley 3 and the second pulley 6 rotate on the surfaces of the connecting block 7 and the pulley group 5 respectively, the smoothness of the rotation can be increased.

[0028] Furthermore, the end of the pulley holder 2 close to the A-frame body 1 is fixedly connected to the holder shaft 13, and the end of the holder shaft 13 away from the pulley holder 2 is fixedly connected to the A-frame body 1. The pulley holder 2 is fixedly connected to the holder shaft 13, so that the pulley holder 2 can be connected to the A-frame body 1.

[0029] In this embodiment, the implementation scenario is specifically as follows: during operation, since the first pulley 3 and the second pulley 6 only change the direction of the force, the tension of the wire ropes on both sides of the first pulley 3 is always consistent, and the design of the first pulley 3 and the second pulley 6 in the middle position of the A-frame body 1 also ensures the stability of the tension it is subjected to, making the overall force of the A-frame body 1 more balanced, greatly improving the safety factor of the A-frame body 1, when the first pulley 3 is in use, the first pulley 3 can be buffered by the buffer assembly 4, and the fixed rod 8 can be buffered by the buffer spring 9. When the connecting block 7 is displaced, by accommodating The groove 12 enables a sliding connection to be made on the outside of the fixed rod 8. When the accommodating groove 12 is displaced, the first elastic ball 10 on the outside of the fixed rod 8 can contact the second elastic ball 11, squeezing the second elastic ball 11, causing the first elastic ball 10 and the second elastic ball 11 to deform. The deformed first elastic ball 10 and the second elastic ball 11 contact the inner wall of the buffer spring 9, so that the fixed rod 8 can be further buffered, reducing the influence of the wire rope on the first pulley 3. Compared with the existing A-frame, the utility model can improve the overall practicality of the A-frame through design.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An A-frame fixing device, comprising an A-frame body (1), characterized in that: A pulley holder (2) is provided on the outside of the A-frame body (1), a first pulley (3) is provided inside the pulley holder (2), and the first pulley (3) is connected to the pulley holder (2) via a buffer assembly (4). An end of the A-frame body (1) away from the pulley holder (2) is rotatably connected to a pulley block (5), and the inside of the pulley block (5) is rotatably connected to a plurality of second pulleys (6); The buffer assembly (4) is used to perform buffering processing on the first pulley (3).

2. The A-frame fixing device according to claim 1, characterized in that: The buffer assembly (4) is composed of a connecting block (7), a fixing rod (8), a buffer spring (9), a first elastic ball (10) and a second elastic ball (11), wherein two groups of the connecting blocks (7) are respectively rotatably connected to the two ends of the first pulley (3), the two groups of the fixing rods (8) are respectively located at the two ends of the connecting block (7) and located inside the pulley holder (2), the buffer spring (9) is located outside the fixing rod (8) and inside the connecting block (7), the first elastic ball (10) is located outside the fixing rod (8) and inside the buffer spring (9), and the second elastic ball (11) is located inside the buffer spring (9) and away from one end of the first elastic ball (10).

3. The A-frame fixing device according to claim 2, characterized in that: Two groups of receiving grooves (12) are provided inside the connecting block (7), and the internal structure size of the receiving grooves (12) is designed to correspond to the external structure size of the fixing rod (8). The connecting block (7) is connected to the fixing rod (8) via the receiving grooves (12).

4. The A-frame fixing device according to claim 3, characterized in that: The fixing rod (8) is connected to the buffer spring (9) via the receiving groove (12), and the external structure size of the first elastic ball (10) and the second elastic ball (11) are designed to correspond to the internal structure size of the buffer spring (9).

5. The A-frame fixing device according to claim 2, characterized in that: One end of the fixing rod (8) away from the connecting block (7) is fixedly connected to the pulley retainer (2).

6. The A-frame fixing device according to claim 2, characterized in that: The first pulley (3) and the second pulley (6) are rotatably connected to the connecting block (7) and the pulley assembly (5) respectively via bearings.

7. The A-frame fixing device according to claim 1, characterized in that: One end of the pulley retainer (2) close to the A-frame body (1) is fixedly connected to a retainer rotating shaft (13), and one end of the retainer rotating shaft (13) away from the pulley retainer (2) is fixedly connected to the A-frame body (1).

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