CN218015583U

CN218015583U - Novel chain tensioning tool

Info

Publication number: CN218015583U
Application number: CN202221786090.8U
Authority: CN
Inventors: 李志强; 杨海军; 冯永强; 李兴川
Original assignee: Lihuayi Lijin Refining and Chemical Co Ltd
Current assignee: Lihuayi Lijin Refining and Chemical Co Ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-12-13
Anticipated expiration: 2032-07-12

Abstract

The utility model relates to a hardware and tools, concretely relates to novel taut instrument of chain. Comprises a main frame, a fixed seat, a screw, a movable seat and a handle; the main frame is a U-shaped frame, one end of the main frame is provided with a fixed pulling claw, the other end of the main frame is provided with a support arm, and the length of the fixed pulling claw is greater than that of the support arm; the fixed seat is arranged at the lower end of the support arm and is provided with a threaded through hole; the screw rod is provided with an external thread matched with the thread through hole, one end of the screw rod is provided with a cylindrical table, and the other end of the screw rod penetrates through the thread through hole and is rotationally connected with the movable seat; the cylinder platform is provided with a through hole, the handle penetrates through the through hole, and the lower end of the movable seat is provided with a movable pull claw. Compact structure, simple to use, one person's operation can accomplish fast when the installation chain, saves operating time, improves work efficiency.

Description

Novel chain tensioning tool

Technical Field

The utility model relates to a hardware and tools, concretely relates to novel taut instrument of chain.

Background

The chain is generally a metal ring and is used for mechanical transmission and traction. The chain can be stretched and drooped after long-time use, so that the chain shakes and falls off, or part of the chain is abraded and aggravated, and the normal use of the transmission equipment is influenced.

At this moment, a new chain needs to be installed again regularly or a damaged part of the chain needs to be repaired, and during installation, a chain tensioning tool needs to be used for pulling the two ends of the chain together, so that the chain is conveniently connected together, and the chain is installed.

However, the existing chain tensioning tool is large in size, complex in structure, inconvenient to carry and incapable of being used in narrow spaces in certain environments. Some tensioning tools are time-consuming and labor-consuming to use, and require adjustable wrenches.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel chain tensioning tool, its aim at solve the technical problem that current chain tensioning tool exists.

In order to achieve the above purpose, the technical scheme of the utility model is that:

the utility model provides a novel chain tensioning tool, which comprises a main frame, a fixed seat, a screw rod, a movable seat and a handle; the main frame is a U-shaped frame, a fixed pull claw is arranged at one end of the main frame, a support arm is arranged at the other end of the main frame, and the length of the fixed pull claw is larger than that of the support arm. The fixing base is arranged at the lower end of the support arm, and the fixing base is provided with a threaded through hole. The screw rod is provided with an external thread matched with the thread through hole, one end of the screw rod is provided with a cylindrical table, and the other end of the screw rod penetrates through the thread through hole and is rotatably connected with the movable seat. The cylinder platform is provided with a through hole, the handle penetrates through the through hole, and the lower end of the movable seat is provided with a movable pull claw.

Furthermore, the fixed claw that draws with the activity draws the bottom of claw all to be provided with the crotch, the fixed crotch that draws the claw with the activity draws the crotch of claw and sets up in opposite directions.

Furthermore, the bottom end of the hook of the fixed pull claw and the bottom end of the hook of the movable pull claw are positioned on the same horizontal line.

Further, the fixing seat is of a nut structure.

Further, the movable seat is of a bearing structure.

Furthermore, one end of the handle is provided with a ball head.

The utility model discloses the beneficial effect who reaches does:

1. the chain mounting device is compact in structure and simple to use, can be quickly completed by one person when the chain is mounted, saves working time and improves working efficiency;

2. the structure is small and exquisite, can be used in narrow space, and is flexible and convenient;

3. the bottom ends of the two pulling claws are designed in an inner arc shape and are more attached to the curve of the chain roller, so that the pulling claws are prevented from slipping to cause personal injury in the process of tensioning the chain during installation;

4. the handle is designed, so that the multifunctional electric heating cooker can be easily used without other auxiliary tools;

5. simple structure and large-scale mass production.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the usage state of the present invention.

Fig. 3 is a sectional view of the chain in use of the present invention.

Fig. 4 is an exploded view of the present invention.

In the figure, 1, a main frame; 11. fixing the pulling claw; 12. hooking; 13. a support arm; 2. a fixed seat; 3. a screw; 31. a cylindrical table; 4. a handle; 41. a ball head; 5. a movable seat; 6. a movable pull claw; 7. and a chain.

Detailed Description

To facilitate understanding of the present invention for those skilled in the art, embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1-4, the utility model provides a novel chain tensioning tool, which comprises a main frame 1, a fixed seat 2, a screw rod 3, a movable seat 5 and a handle 4. The main frame 1 is a U-shaped frame, one end of the main frame 1 is provided with a fixed pull claw 11, the other end of the main frame 1 is provided with a support arm 13, and the length of the fixed pull claw 11 is greater than that of the support arm 13. The fixed seat 2 is arranged at the lower end of the support arm 13, and specifically, the fixed seat 2 is connected with the support arm 13 by welding points; the fixing seat 2 is of a nut structure, and the fixing seat 2 is provided with a threaded through hole. The screw rod 3 is of a stud structure, the screw rod 3 is provided with an external thread matched with the thread through hole, one end of the screw rod 3 is provided with a cylindrical table 31, and the cylindrical table 31 and the screw rod 3 are of an integrated structure; the other end of the screw rod 3 penetrates through the threaded through hole and is rotationally connected with the movable seat 5, specifically, the movable seat 5 is of a bearing structure, an inner ring of the bearing is connected with a welding point at the end of the screw rod 3, and an outer ring of the bearing is connected with a welding point of the movable pull claw 6. The cylindrical table 31 is provided with a through hole, and the handle 4 penetrates through the through hole.

Furthermore, in order to prevent the chain 7 from slipping during tensioning, the bottom ends of the fixed pull claw 11 and the movable pull claw 6 are provided with hooks 12, and the hooks 12 of the fixed pull claw 11 and the hooks 12 of the movable pull claw 6 are oppositely arranged.

Further, the bottom end of the hook 12 of the fixed pull claw 11 and the bottom end of the hook 12 of the movable pull claw 6 are in the same horizontal line.

Further, one end of the handle 4 is provided with a ball head 41, so that when the handle 4 is prevented from being rotated, the handle 4 is prevented from being separated from the through hole.

When the main frame is used specifically, the fixed pulling claw 11 and the movable pulling claw 6 on the main frame 1 are hung on the roller wheels at two ends of the chain 7 to be connected, then the rotating handle 4 drives the screw rod 3 to rotate, the screw rod 3 rotates on the fixed seat 2 to drive the movable seat 5 to move forward or retreat, and the movable pulling claw 6 is driven to move forward or retreat by the movement or retreat of the movable seat 5. Because the movable seat 5 is of a bearing structure, the movable pull claw 6 can be flexibly hung on the roller of the chain 7 no matter how the screw rod 3 rotates. The screw rod 3 is rotated by the rotating handle 4 to enable the movable pull claw 6 to reach a proper position, and after the two connectors of the chain 7 are aligned and fixed, the clamping pin of the chain 7 can be installed. After the installation is finished, the handle 4 can be rotated reversely, so that the two pulling claws are loosened, and the tensioning tool can be taken down.

The above-mentioned embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A novel chain tensioning tool is characterized in that: comprises a main frame (1), a fixed seat (2), a screw rod (3), a movable seat (5) and a handle (4); the main frame (1) is a U-shaped frame, one end of the main frame (1) is provided with a fixed pulling claw (11), the other end of the main frame (1) is provided with a support arm (13), and the length of the fixed pulling claw (11) is greater than that of the support arm (13); the fixed seat (2) is arranged at the lower end of the support arm (13), and the fixed seat (2) is provided with a threaded through hole; the screw (3) is provided with an external thread matched with the thread through hole, one end of the screw (3) is provided with a cylindrical table (31), and the other end of the screw penetrates through the thread through hole and is rotationally connected with the movable seat (5); the cylindrical table (31) is provided with a through hole, the handle (4) penetrates through the through hole, and the lower end of the movable seat (5) is provided with a movable pull claw (6).

2. The novel chain tensioning tool of claim 1, wherein: the fixed claw (11) that draws with the activity draws the bottom of claw (6) and all is provided with crotch (12), fixed hook (12) that draw claw (11) with the activity draws crotch (12) of claw (6) and sets up in opposite directions.

3. A novel chain tensioning tool as claimed in claim 2, wherein: the bottom end of a hook (12) of the fixed pull claw (11) and the bottom end of the hook (12) of the movable pull claw (6) are positioned on the same horizontal line.

4. The novel chain tensioning tool of claim 1, wherein: the fixing seat (2) is of a nut structure.

5. The novel chain tensioning tool of claim 1, wherein: the movable seat (5) is of a bearing structure.

6. The novel chain tensioning tool of claim 1, wherein: one end of the handle (4) is provided with a ball head (41).