CN219132135U - Lever type force-doubling ratchet wrench - Google Patents
Lever type force-doubling ratchet wrench Download PDFInfo
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- CN219132135U CN219132135U CN202221390591.4U CN202221390591U CN219132135U CN 219132135 U CN219132135 U CN 219132135U CN 202221390591 U CN202221390591 U CN 202221390591U CN 219132135 U CN219132135 U CN 219132135U
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- ratchet
- movable arm
- pawl
- clamping plate
- sleeve
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Abstract
A lever type double-force ratchet wrench comprises a lever type double-force ratchet wrench head; the lever type double-force ratchet wrench head comprises a ratchet sleeve, a clamping plate, a fixed arm and a movable arm combination, wherein ratchet teeth are arranged on the outer circumference of the ratchet sleeve, and a pawl is hinged in the movable arm combination; the ratchet sleeve, the fixed arm and the movable arm are arranged between the two clamping plates in a combined way; the ratchet sleeve is rotationally connected with the clamping plate; the fixed arm is fixedly connected with the clamping plate; the movable arm combination is hinged with the clamping plate; the movable arm combination swings around a hinge shaft connected with the clamping plate to drive the pawl to move, and the pawl is matched with ratchet teeth of the ratchet sleeve to drive the ratchet sleeve to rotate unidirectionally; when the lever type double-force ratchet wrench is used, the fixed arm and the movable arm are combined to form a wrench rod, a speed reducing mechanism is formed between the wrench rod and the pawl of the movable arm, and driving torque applied by the wrench rod is amplified through the speed reducing mechanism, so that torque of the pawl for driving the ratchet sleeve to rotate is amplified, and the fastening or dismounting work of a bolt or a nut is easily completed.
Description
Technical Field
The utility model relates to the technical field of tools for mechanical assembly and maintenance, in particular to a lever type double-force ratchet wrench.
Background
When the traditional manual wrench is used, the lever type moment is applied to the manual wrench by the self force of a user, and nuts or bolts are disassembled, so that the physical consumption is high; and in some special cases, the user cannot meet the locking or disassembling torque required by the bolt or the nut by means of self force, so that the bolt or the nut cannot be locked or disassembled, and a plurality of inconveniences are caused in use.
Disclosure of Invention
In order to overcome the defects in the background technology, the utility model discloses a lever type double-force ratchet wrench, which comprises a ratchet wrench head; the ratchet wrench head comprises a ratchet sleeve, a clamping plate, a fixed arm and a movable arm combination, ratchet teeth are arranged on the outer circumference of the ratchet sleeve, and a pawl is hinged in the movable arm combination; the ratchet sleeve, the fixed arm and the movable arm are arranged between the two clamping plates in a combined way; the ratchet sleeve is rotationally connected with the clamping plate, the fixed arm is fixedly connected with the clamping plate, and the movable arm combination is hinged with the clamping plate; when the lever type double-force ratchet wrench is used, the fixed arm and the movable arm combination are provided with a wrench rod, a speed reducing mechanism is formed between the wrench rod of the movable arm combination and a pawl, and the movable arm combination outputs the driving torque applied by the wrench rod after being amplified by the speed reducing mechanism, so that the torque of the pawl for driving the ratchet sleeve to rotate is amplified, and the fastening or the dismounting work of a bolt or a nut is easily completed.
In order to achieve the aim of the utility model, the utility model adopts the following technical scheme: a lever type double-force ratchet wrench comprises a ratchet wrench head; the ratchet wrench head comprises a ratchet sleeve, a clamping plate, a fixed arm and a movable arm combination, ratchet teeth are arranged on the outer circumference of the ratchet sleeve, and a pawl is hinged in the movable arm combination; the two clamping plates are arranged up and down, and the ratchet sleeve, the fixed arm and the movable arm are arranged between the two clamping plates in a combined way; the ratchet sleeve is rotationally connected with the clamping plate; the fixed arm is fixedly connected with the clamping plate; the movable arm combination is hinged with the clamping plate; the movable arm combination swings around a hinge shaft connected with the clamping plate to drive the pawl to move, and the pawl is matched with ratchet teeth of the ratchet sleeve to drive the ratchet sleeve to rotate unidirectionally; when the lever type double-force ratchet wrench is used, the fixed arm and the movable arm combination are provided with wrench rods, a speed reducing mechanism is formed between the wrench rods of the movable arm combination and pawls, and the movable arm combination outputs driving torque applied by the wrench rods after being amplified by the speed reducing mechanism, so that the torque of the pawls for driving the ratchet sleeve to rotate is amplified.
Furthermore, the ratchet sleeve is hollow ring-shaped, ratchet teeth are arranged on the outer circumference around the axis array, ratchet mounting necks are arranged at the upper end and the lower end of the ratchet teeth, a through plum blossom hole is arranged in the middle of the ratchet sleeve, and the plum blossom hole can be directly matched with a bolt head or a nut for use, and the nut or the bolt can be disassembled and assembled; the clamping plate is plate-shaped, and the plate surface of the clamping plate is provided with a through ratchet wheel mounting hole; the ratchet sleeve and the clamping plate are in matched rotation connection with the ratchet mounting hole through the ratchet mounting neck.
Preferably, the ratchet sleeve is a solid short cylinder, ratchet teeth are arranged on the outer circumference around the axis in an array manner, ratchet mounting necks are arranged at the upper end and the lower end of the ratchet teeth, and solid square heads are arranged at the upper end and the lower end of the ratchet sleeve; the solid square head is matched with the wrench socket head for use, and the wrench socket head can be used for fastening or disassembling bolts or nuts with different specifications and sizes through replacement.
Furthermore, the clamping plate is also provided with a rivet hole A, the fixing arm is provided with a rivet hole, the rivet hole of the fixing arm is aligned with the axis of the rivet hole A of the clamping plate and is fixedly connected through a rivet; the lever type double-force ratchet wrench is characterized in that the fixed arm is fixedly connected with the clamping plate in the use process, so that the ratchet wrench head of the lever type double-force ratchet wrench is fixedly maintained in the use process, and the movable arm combination swings around the hinge shaft to drive the ratchet sleeve to rotate unidirectionally, and the fastening or dismounting work of the bolt or the nut is completed.
Further, the movable arm combination also comprises a movable arm and a torsion spring; a torsion spring groove and a pawl groove are formed in one end part of the movable arm, and a pawl hinge hole and a movable arm hinge hole which penetrate through the torsion spring groove and the pawl groove are formed between the upper end surface and the lower end surface of the movable arm; the pawl is provided with a pin shaft hole, the pawl is arranged in the pawl groove, the pin shaft hole is aligned with the axis of the pawl hinge hole, and the pawl is hinged with the movable arm through a pin shaft; the torsion spring is arranged in the torsion spring groove and is connected with the movable arm through the pin, two force arms of the torsion spring respectively collide with the movable arm and the pawl, and the torsion spring ensures that the pawl and the ratchet sleeve are always and reliably contacted when the lever type double-force ratchet wrench works; the clamping plate is also provided with a rivet hole B, the rivet hole B is aligned with the axis of the hinge hole of the movable arm, and the hinge connection of the movable arm and the clamping plate is realized through rivets, namely the hinge connection of the movable arm combination and the clamping plate is realized;
when the lever principle is utilized to drive the movable arm combination to swing around the hinge shaft, the rotating shaft of the movable arm is a hinge rivet of the clamping plate and the movable arm, the rotating shaft of the pawl is a hinge pin of the pawl and the movable arm, namely, the rotating shafts of the movable arm and the pawl are not coaxial, and the rotating angular speed of the movable arm around the rotating shaft of the movable arm is larger than the rotating angular speed of the pawl around the rotating shaft of the movable arm, so that a speed reducing mechanism is formed between the movable arm and the pawl.
Further, the fixed arm and the movable arm are connected with a spanner rod through a quick connecting sleeve in a disassembling mode, and the spanner rod is used for improving the input torque of the lever type double-force ratchet spanner.
Further, the end part of the spanner rod is fixedly provided with an anti-skid sleeve.
Furthermore, the plum blossom hole of the ratchet spanner head is designed in series and is used for disassembling and assembling nuts or bolts with different specifications and sizes.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects: the utility model discloses a lever type double-force ratchet wrench, which comprises a lever type double-force ratchet wrench head; the lever type double-force ratchet wrench head comprises a ratchet sleeve, a clamping plate, a fixed arm and a movable arm combination, wherein ratchet teeth are arranged on the outer circumference of the ratchet sleeve, and a pawl is hinged in the movable arm combination; the two clamping plates are arranged up and down, and the ratchet sleeve, the fixed arm and the movable arm are arranged between the two clamping plates in a combined way; the ratchet sleeve is rotationally connected with the clamping plate; the fixed arm is fixedly connected with the clamping plate; the movable arm combination is hinged with the clamping plate; the movable arm combination swings around a hinge shaft connected with the clamping plate to drive the pawl to move, and the pawl is matched with ratchet teeth of the ratchet sleeve to drive the ratchet sleeve to rotate unidirectionally; when the lever type double-force ratchet wrench is used, the fixed arm and the movable arm combination are provided with a wrench rod, a speed reducing mechanism is formed between the wrench rod of the movable arm combination and a pawl, the movable arm combination amplifies driving torque applied by the wrench rod and outputs the driving torque through the speed reducing mechanism, so that the torque of the pawl for driving the ratchet sleeve to rotate is amplified, and the fastening or dismounting torque of a bolt or a nut is amplified, so that the nut or the bolt can be easily dismounted; the lever type double-force ratchet wrench disclosed by the utility model is skillfully combined with the lever principle mechanism and the ratchet driving structure to amplify torsion, so that the purpose of conveniently disassembling and assembling nuts or bolts is achieved.
Drawings
FIG. 1 is a schematic view of the lever type double force ratchet wrench;
FIG. 2 is a schematic diagram of an exploded construction of a lever-type double-force ratchet wrench;
FIG. 3 is a schematic view of an exploded view of a lever-type double-force ratchet wrench head;
FIG. 4 is a schematic view of the lever type force-multiplying ratchet sleeve;
FIG. 5 is a schematic view of the appearance of the splint;
FIG. 6 is an exploded view of a movable arm assembly;
FIG. 7 is a schematic view of the appearance of a movable arm;
FIG. 8 is a schematic view of the appearance of the quick connect sleeve;
FIG. 9 is a schematic view of a lever type force doubling ratchet wrench in a lever type force doubling use state;
FIG. 10 is a schematic view of a lever type double force ratchet wrench in a normal use state;
FIG. 11 is a schematic view of the lever type double force ratchet wrench of a solid short cylindrical ratchet sleeve.
In the figure: 1. lever type double force ratchet spanner head; 1.1, a ratchet sleeve; 1.1.1 ratchet teeth; 1.1.2, ratchet mounting neck; 1.1.3, plum blossom holes; 1.2, splints; 1.2.1, ratchet mounting holes; 1.2.2, rivet hole A;1.2.3, rivet hole B;1.3, fixing arms; 1.4, movable arm combination; 1.4.1, a movable arm; 1.4.1.1, torsion spring grooves; 1.4.1.2, detent grooves; 1.4.1.3, pawl hinge holes; 1.4.1.4, movable arm hinge holes; 1.4.2, pawl; 1.4.3, torsion springs; 1.4.4, pins; 1.4.5, pin rolls; 1.5, rivets; 2. a quick connecting sleeve; 3. a wrench rod; 4. an anti-skid sleeve.
Detailed Description
The utility model will be explained in more detail by the following examples, the purpose of which is to protect all technical improvements within the scope of the utility model.
A lever type double-force ratchet wrench comprises a lever type double-force ratchet wrench head 1; the lever type double-force ratchet wrench head 1 comprises a ratchet sleeve 1.1, a clamping plate 1.2, a fixed arm 1.3 and a movable arm combination 1.4, wherein ratchet teeth 1.1.1 are arranged on the outer circumference of the ratchet sleeve 1.1, and a pawl 1.4.2 is hinged in the movable arm combination 1.4; two clamping plates 1.2 are arranged up and down, and a ratchet sleeve 1.1, a fixed arm 1.3 and a movable arm combination 1.4 are arranged between the two clamping plates 1.2; the ratchet sleeve 1.1 is rotationally connected with the clamping plate 1.2; the fixed arm 1.3 is fixedly connected with the clamping plate 1.2; the movable arm combination 1.4 is hinged with the clamping plate 1.2;
the ratchet sleeve 1.1 is hollow annular, ratchet teeth 1.1.1 are arranged on the outer circumference around the axis array, ratchet mounting necks 1.1.2 are arranged at the upper end and the lower end of the ratchet teeth 1.1.1, and a penetrating plum blossom hole 1.1.3 is arranged in the middle of the ratchet sleeve 1.1; the clamping plate 1.2 is plate-shaped, and the plate surface of the clamping plate is provided with a through ratchet wheel mounting hole 1.2.1; the ratchet sleeve 1.1 and the clamping plate 1.2 are in matched rotation connection with the ratchet mounting hole 1.2.1 through the ratchet mounting neck 1.1.2; the clamping plate 1.2 is also provided with a rivet hole A1.2.2, the fixed arm 1.3 is provided with a rivet hole, the rivet hole of the fixed arm 1.3 is aligned with the axis of the rivet hole A1.2.2 of the clamping plate 1.2 and is fixedly connected through a rivet 1.5; the movable arm combination 1.4 also comprises a movable arm 1.4.1 and a torsion spring 1.4.3; a torsion spring groove 1.4.1.1 and a pawl groove 1.4.1.2 are arranged at one side end part of the movable arm 1.4.1, and a pawl hinge hole 1.4.1.3 and a movable arm hinge hole 1.4.1.4 which penetrate through the upper end surface and the lower end surface of the movable arm; the pawl 1.4.2 is provided with a pin shaft hole, the pawl 1.4.2 is arranged in the pawl groove 1.4.1.2, the pin shaft hole is aligned with the axis of the pawl hinge hole 1.4.1.3, and the pawl is hinged with the movable arm 1.4.1 through the pin shaft 1.4.5; the torsion spring 1.4.3 is arranged in the torsion spring groove 1.4.1.1 and is connected with the movable arm 1.4.1 through the pin 1.4.4, and two force arms of the torsion spring 1.4.3 respectively collide with the movable arm 1.4.1 and the pawl 1.4.2; the clamping plate 1.2 is also provided with a rivet hole B1.2.3, the rivet hole B1.2.3 is aligned with the axis of the movable arm hinge hole 1.4.1.4, and the hinge connection of the movable arm combination 1.4 and the clamping plate 1.2 is realized through a rivet 1.5; the fixed arm 1.3 and the movable arm 1.4.1 are connected with a spanner rod 3 through a quick connecting sleeve 2 in a disassembling way; an anti-skid sleeve 4 is fixedly arranged at the end part of the spanner rod 3.
The hollow annular lever type double-force ratchet wrench head 1 is arranged in series.
The ratchet sleeve is a solid short cylinder, ratchet teeth are arranged on the outer circumference around the axis array, ratchet mounting necks are arranged at the upper end and the lower end of the ratchet teeth, and solid square heads are arranged at the upper end and the lower end of the ratchet sleeve.
When the lever type double-force ratchet wrench is used, the lever type double-force ratchet wrench is used as a common ratchet wrench when the wrench rods 3 of the fixed arm 1.3 and the movable arm combination 1.4 are folded together;
when the wrench rod 3 of the fixed arm 1.3 is kept still and the wrench rod 3 of the movable arm assembly 1.4 is pulled back and forth, the torque loaded on the wrench rod 3 of the movable arm assembly 1.4 is output after being decelerated by the deceleration mechanism formed by the movable arm 1.4.1 and the pawl 1.4.2, so that the torque of the pawl 1.4.2 for driving the ratchet sleeve 1.1 to rotate is amplified.
The utility model is not described in detail in the prior art.
Claims (8)
1. A lever type double-force ratchet wrench is characterized in that: comprises a lever type double-force ratchet wrench head (1); the lever type double-force ratchet wrench head (1) comprises a ratchet sleeve (1.1), a clamping plate (1.2), a fixed arm (1.3) and a movable arm combination (1.4), ratchet teeth (1.1.1) are arranged on the outer circumference of the ratchet sleeve (1.1), and a pawl (1.4.2) is hinged in the movable arm combination (1.4); two clamping plates (1.2) are arranged up and down, and a ratchet sleeve (1.1), a fixed arm (1.3) and a movable arm combination (1.4) are arranged between the two clamping plates (1.2); the ratchet sleeve (1.1) is rotationally connected with the clamping plate (1.2); the fixed arm (1.3) is fixedly connected with the clamping plate (1.2); the movable arm combination (1.4) is hinged with the clamping plate (1.2); the movable arm combination (1.4) swings around the hinge shaft to drive the pawl (1.4.2) to move, and the pawl (1.4.2) is matched with ratchet teeth (1.1.1) of the ratchet sleeve (1.1) to drive the ratchet sleeve (1.1) to rotate unidirectionally.
2. The lever-type double-force ratchet wrench of claim 1, wherein: the ratchet sleeve (1.1) is hollow and annular, ratchet teeth (1.1.1) are arranged on the outer circumference around the axis in an array manner, ratchet mounting necks (1.1.2) are arranged at the upper end and the lower end of the ratchet teeth (1.1.1), and a penetrating plum blossom hole (1.1.3) is arranged in the middle of the ratchet sleeve (1.1); the clamping plate (1.2) is plate-shaped, and the plate surface of the clamping plate is provided with a through ratchet wheel mounting hole (1.2.1); the ratchet sleeve (1.1) and the clamping plate (1.2) are connected with the ratchet mounting hole (1.2.1) in a matched rotation way through the ratchet mounting neck (1.1.2).
3. The lever-type double-force ratchet wrench of claim 2, wherein: the ratchet sleeve (1.1) is a solid short cylinder, ratchet teeth (1.1.1) are arranged on the outer circumference around the axis array, ratchet mounting necks (1.1.2) are arranged at the upper end and the lower end of the ratchet teeth (1.1.1), and solid square heads are arranged at the upper end and the lower end of the ratchet sleeve (1.1).
4. The lever-type double-force ratchet wrench of claim 2, wherein: the clamping plate (1.2) is further provided with a rivet hole A (1.2.2), the fixing arm (1.3) is provided with a rivet hole, the rivet hole of the fixing arm (1.3) is aligned with the axis of the rivet hole A (1.2.2) of the clamping plate (1.2), and the clamping plate is fixedly connected through a rivet (1.5).
5. A lever-type multiple force ratchet wrench according to claim 3, wherein: the movable arm combination (1.4) also comprises a movable arm (1.4.1) and a torsion spring (1.4.3); a torsion spring groove (1.4.1.1) and a pawl groove (1.4.1.2) are arranged at one side end part of the movable arm (1.4.1), and a pawl hinge hole (1.4.1.3) and a movable arm hinge hole (1.4.1.4) which penetrate through are arranged between the upper end surface and the lower end surface; the pawl (1.4.2) is provided with a pin shaft hole, the pawl (1.4.2) is arranged in the pawl groove (1.4.1.2), the pin shaft hole is aligned with the axis of the pawl hinge hole (1.4.1.3), and the pawl is hinged with the movable arm (1.4.1) through the pin shaft (1.4.5); the torsion spring (1.4.3) is arranged in the torsion spring groove (1.4.1.1) and is connected with the movable arm (1.4.1) through the pin (1.4.4), and two force arms of the torsion spring (1.4.3) are respectively abutted against the movable arm (1.4.1) and the pawl (1.4.2);
and a rivet hole B (1.2.3) is further formed in the clamping plate (1.2), the rivet hole B (1.2.3) is aligned with the axis of the movable arm hinge hole (1.4.1.4), and the movable arm combination (1.4) is hinged with the clamping plate (1.2) through rivets (1.5).
6. The lever-type double-force ratchet wrench of claim 1, wherein: the fixed arm (1.3) and the movable arm (1.4.1) are connected with the spanner rod (3) through the quick connecting sleeve (2) in a disassembling mode.
7. The lever-type multiple force ratchet wrench of claim 5, wherein: an anti-skid sleeve (4) is fixedly arranged at the end part of the spanner rod (3).
8. The lever-type multiple force ratchet wrench of claim 5, wherein: the size of the plum blossom hole (1.1.3) of the lever type double force ratchet wrench head (1) is designed in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221390591.4U CN219132135U (en) | 2022-06-06 | 2022-06-06 | Lever type force-doubling ratchet wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221390591.4U CN219132135U (en) | 2022-06-06 | 2022-06-06 | Lever type force-doubling ratchet wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219132135U true CN219132135U (en) | 2023-06-06 |
Family
ID=86562831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221390591.4U Active CN219132135U (en) | 2022-06-06 | 2022-06-06 | Lever type force-doubling ratchet wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219132135U (en) |
-
2022
- 2022-06-06 CN CN202221390591.4U patent/CN219132135U/en active Active
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