CN215659777U - Locking pliers with variable throat depth - Google Patents
Locking pliers with variable throat depth Download PDFInfo
- Publication number
- CN215659777U CN215659777U CN202121073477.4U CN202121073477U CN215659777U CN 215659777 U CN215659777 U CN 215659777U CN 202121073477 U CN202121073477 U CN 202121073477U CN 215659777 U CN215659777 U CN 215659777U
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Abstract
The utility model relates to the field of manual tools, in particular to a pair of throat-depth-variable powerful pliers, which comprises a presser foot, a front arm, a connecting plate, a leaf spring, a fixed arm, a movable arm, a fixed handle, a movable handle, an opening handle, a support plate, an adjusting screw, a tension spring and a rivet, wherein the movable arm is connected with the front part of the fixed handle through the rivet, the adjusting screw is arranged at the rear end of the fixed handle, the tension spring is arranged between the middle part of the fixed handle and the movable arm, the front end of the movable handle is fixedly connected with the movable arm through the rivet, the front end of the support plate is connected with the movable handle through the rivet, the opening and lifting plate is connected with the movable handle through the rivet, the connecting plate is respectively connected with the fixed arm and the movable arm through the rivet, the through hole is penetrated by the rivet and is U-shaped, the front arm can be placed in the connecting plate, the front arm positioning pit is arranged at the back part of the front arm, the front arm is separated from the rivet above the connecting plate after the front arm rotates, the front arm can slide in the connecting plate, and the lower side of the connecting plate is connected with the leaf spring to control the front arm not to rotate under the free state.
Description
Technical Field
The utility model relates to the technical field of manual hardware tools, in particular to a pair of locking pliers with variable throat depths.
Background
At present, locking pliers on the market, including the presser foot, the forearm, even board, the leaf spring, the fixed arm, the digging arm, fixed handle, the movable handle, open the handle, the extension board, adjusting screw, the extension spring, the rivet, the digging arm is connected with the fixed handle front portion through the rivet, fixed handle's rear end is equipped with adjusting screw, be equipped with the extension spring between fixed handle's middle part and the digging arm, the movable handle front end passes through rivet and digging arm fixed connection, the extension board front end passes through rivet and is connected with the movable handle, it is connected with the movable handle through the rivet to open and lift the piece, even board passes through the rivet respectively to be connected with fixed arm and digging arm, even board front end passes through rivet connection forearm, the forearm head passes through rivet connection presser foot, because even board and forearm pass through rivet fixed connection during the use, locking pliers clamping range can not be adjusted. When the clamping is large-scale, the locking pliers with larger specifications are needed, and the locking pliers with large specifications are inconvenient to carry and store.
Disclosure of Invention
The utility model aims to overcome the defects of the technology and provide the locking pliers with the variable throat depth, which are reasonable in design, easy to manufacture and adjustable in clamping range.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a throat depth variable locking pliers comprises a presser foot, a front arm, a connecting plate, a leaf spring, a fixed arm, a movable arm, a fixed handle, a movable handle, an opening handle, a support plate, an adjusting screw and a tension spring, wherein the fixed arm is connected with the front part of the fixed handle through a rivet, the adjusting screw is arranged at the rear end of the fixed handle, the tension spring is arranged between the middle part of the fixed handle and the movable arm, the front end of the movable handle is connected with the movable arm through a rivet, the front end of the support plate is connected with the movable handle through a rivet, the opening handle is connected with the movable handle through a rivet, the connecting plate is respectively connected with the fixed arm and the movable arm through rivets, the front end of the connecting plate is contacted with the front arm through a rivet, the head of the front arm is connected with the presser foot through a rivet, the through hole is penetrated by the rivet, the connecting plate is U-shaped, the front arm can be placed in the connecting plate, a front arm positioning pit is arranged at the back part of the front arm, the front arm is separated from the rivet above the connecting plate after the front arm rotates, the front arm can slide in the connecting plate, and the lower side of the connecting plate is connected with the leaf spring to control the front arm not to rotate under the free state.
When a large workpiece is clamped and a large clamping range is required to be provided by the large-power pliers, the front arm is rotated to overcome the torsion of the leaf spring, the front arm positioning socket is separated from the rivet on the connecting plate, the front arm is dragged to the proper front arm positioning socket, the front arm is loosened, the leaf spring on the connecting plate provides the torsion, the front arm rotates, the front arm positioning socket is coincided with the rivet on the connecting plate again, the clamping range of the large-power pliers with the variable throat depth is increased, and the large-range workpiece can be clamped.
In conclusion, the adjustable throat depth locking pliers are reasonable in design, easy to manufacture and adjustable in clamping range, and greatly reduce labor intensity of operators when in use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the present invention in an extended state;
FIG. 3 is a fragmentary isometric view of the present invention in a closed condition;
FIG. 4 is a partial schematic view of the opening process of the present invention:
FIG. 5 is a partial isometric view of the opening process of the present invention.
The labels in the figure are: 1. presser foot, 2, forearm, 3, link plate, 4, leaf spring, 5, fixed arm, 6, digging arm 7, stationary handle, 8, movable handle, 9, opening handle, 10, extension board, 11, adjusting screw, 12, extension spring, 13, rivet, 14, rivet, 15, rivet, 16, rivet, 17, rivet, 18, rivet, 19, rivet, 20, forearm location nest, 21, through-hole.
Detailed Description
As shown in fig. 1 to 5: a throat depth variable locking pliers comprises a presser foot 1, a front arm 2, a connecting plate 3, a leaf spring 4, a fixed arm 5, a movable arm 6, a fixed handle 7, a movable handle 8, an opening handle 9, a support plate 10, an adjusting screw 11 and a tension spring 12, wherein the fixed arm 5 is connected with the front part of the fixed handle 7 through a rivet 13, the adjusting screw 11 is arranged at the rear end of the fixed handle 7, the tension spring 12 is arranged between the middle part of the fixed handle 7 and the movable arm 6, the front end of the movable handle 8 is connected with the movable arm 7 through a rivet 14, the front end of the support plate 10 is connected with the movable handle 8 through a rivet 15, the opening handle 9 is connected with the movable handle 8 through a rivet 16, the connecting plate 3 is respectively connected with the fixed arm 5 and the movable arm 6 through a rivet 17, the front end of the connecting plate 3 is contacted with the front arm 2 through a rivet 18, the head of the front arm 2 is connected with the presser foot 1 through a rivet 19, and is characterized in that a through hole 21 is arranged above the front end of the connecting plate 3, the through hole 21 is penetrated with a rivet 18, the connecting plate 3 is U-shaped, the front arm 2 can be placed in the connecting plate 3, the back of the front arm 2 is provided with a front arm positioning socket 20, the front arm positioning socket 20 is separated from the rivet 18 above the connecting plate 3 after the front arm 2 rotates, the front arm 2 can slide in the connecting plate 3, the lower side of the connecting plate 3 is connected with a leaf spring 4, and the front arm 2 can not rotate under the free state.
When a large workpiece is clamped and a large clamping range needs to be provided by the large-power pliers, the front arm 2 is rotated to overcome the torsion of the leaf spring 4, the front arm positioning socket 20 is separated from the rivet 18 on the connecting plate 3, the front arm 2 is dragged to the proper front arm positioning socket 20, the front arm 2 is loosened, the leaf spring 4 on the connecting plate 3 provides the torsion, the front arm 2 rotates, the front arm positioning socket 20 is coincided with the rivet 18 on the connecting plate 3 again, the clamping range of the large-power pliers with the variable throat depth is increased, and the large-range workpiece can be clamped.
Claims (1)
1. A throat depth variable locking pliers comprises a presser foot, a front arm, a connecting plate, a leaf spring, a fixed arm, a movable arm, a fixed handle, a movable handle, an opening handle, a support plate, an adjusting screw, a tension spring and a rivet, wherein the movable arm is connected with the front part of the fixed handle through the rivet, the adjusting screw is arranged at the rear end of the fixed handle, the tension spring is arranged between the middle part of the fixed handle and the movable arm, the front end of the movable handle is fixedly connected with the movable arm through the rivet, the front end of the support plate is connected with the movable handle through the rivet, an opening and lifting plate is connected with the movable handle through the rivet, the connecting plate is respectively connected with the fixed arm and the movable arm through the rivet, the throat depth variable locking pliers is characterized in that a through hole is arranged above the front end of the connecting plate, the connecting plate is U-shaped, the front arm can be placed in the connecting plate, the back part of the front arm is provided with a front arm positioning pit, the front arm is separated from the rivet above the connecting plate after the front arm rotates, and can slide in the connecting plate, the lower side of the connecting plate is connected with a leaf spring to control the forearm not to rotate in a free state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121073477.4U CN215659777U (en) | 2021-05-19 | 2021-05-19 | Locking pliers with variable throat depth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121073477.4U CN215659777U (en) | 2021-05-19 | 2021-05-19 | Locking pliers with variable throat depth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215659777U true CN215659777U (en) | 2022-01-28 |
Family
ID=79970761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121073477.4U Active CN215659777U (en) | 2021-05-19 | 2021-05-19 | Locking pliers with variable throat depth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215659777U (en) |
-
2021
- 2021-05-19 CN CN202121073477.4U patent/CN215659777U/en active Active
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