CN219819546U - Ratchet screwdriver - Google Patents
Ratchet screwdriver Download PDFInfo
- Publication number
- CN219819546U CN219819546U CN202320828401.0U CN202320828401U CN219819546U CN 219819546 U CN219819546 U CN 219819546U CN 202320828401 U CN202320828401 U CN 202320828401U CN 219819546 U CN219819546 U CN 219819546U
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- China
- Prior art keywords
- ratchet
- reversing
- ratchet seat
- pawl
- seat
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- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model discloses a ratchet screwdriver, wherein a ratchet seat cover plate is arranged on a ratchet seat, a limit hole is formed in the ratchet seat cover plate, when a connecting pipe fitting penetrates into the ratchet seat, the connecting pipe fitting penetrates through the limit hole, so that a pipe body of the connecting pipe fitting always rotates in the limit hole, the pipe body is parallel to the central line of the ratchet seat, and the inner wall of the ratchet seat is not attached to the inner wall of the ratchet seat during rotation, thereby avoiding influencing the rotation of the connecting pipe fitting, ensuring the rotation flexibility of a ratchet head and improving the practicability of the ratchet screwdriver.
Description
Technical Field
The utility model belongs to the technical field of screwdrivers, and particularly relates to a ratchet screwdriver.
Background
The ratchet screwdriver is a screwdriver capable of controlling steering, and can be rotated clockwise or anticlockwise only when in use, otherwise, only the handle is rotated without rotating the tool bit, so that when the screw is screwed, one hand can screw back and forth like a pendulum, and meanwhile, the tool bit is not separated from the screw, so that the efficiency in operation is greatly improved. The ratchet screwdriver comprises a ratchet head, a ratchet seat, a connecting pipe fitting and other parts, wherein the ratchet seat is fixed on a screwdriver handle in the prior art, the connecting pipe fitting rotates in the ratchet seat, and when the connecting pipe fitting contacts with the inner wall of the ratchet seat during installation, the flexibility of the rotation of the connecting pipe fitting is affected.
Disclosure of Invention
The utility model aims to solve the technical problems in the prior art and provide the ratchet screwdriver, wherein the ratchet seat cover plate is provided with the limit hole to limit the position of the connecting pipe fitting in the ratchet seat and ensure the rotation flexibility of the connecting pipe fitting.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the ratchet screwdriver comprises a ratchet head, wherein the ratchet head is used for fixing a screwdriver bit; the inner side of the ratchet head is provided with a ratchet; the ratchet seat is movably provided with opposite pawls which limit the rotation direction of the ratchet head by engaging with the ratchet teeth; the ratchet seat is connected with a screwdriver handle; the reversing ring is arranged on the outer side of the pawl and used for controlling the engagement of the pawl and the ratchet; the connecting pipe fitting penetrates through the ratchet seat, the end part of the connecting pipe fitting is connected with the ratchet head, the ratchet seat is provided with a ratchet seat cover plate, the ratchet seat cover plate is provided with a limiting hole, the limiting hole is matched with the connecting pipe fitting, and the connecting pipe fitting penetrates through the limiting hole, so that the connecting pipe fitting is not attached to the inner wall of the ratchet seat when rotating in the ratchet seat.
Further, the ratchet seat is provided with a limit groove, and the ratchet seat cover piece is provided with a limit block, and the limit block is connected with the limit groove in a clamping manner, so that the ratchet seat cover piece is fixed on the ratchet seat.
Further, the end part of the connecting pipe fitting is provided with a caulking groove, and magnetic steel is arranged in the caulking groove and used for magnetically attracting the screwdriver bit.
Further, the ratchet seat is provided with an arc groove, and the pawl is provided with a rotating shaft which is limited in the arc groove, so that the pawl can rotate and move on the ratchet seat.
Further, the ratchet seat is provided with a first clamping groove, the elastic sheet spring is limited in the first clamping groove, and the elastic sheet spring acts on the pawl to enable the pawl to engage with the ratchet.
Further, a plurality of convex strips which are arranged in a circumferential direction are arranged on the inner side of the reversing ring, a buffer groove is formed between the convex strips, when the reversing ring rotates until the convex strips are propped against the pawl, the pawl is separated from the engagement of the ratchet teeth, and when the reversing ring rotates until the pawl is arranged in the buffer groove, the pawl is kept engaged with the ratchet teeth.
Further, the ratchet seat is provided with a reversing spring, the end part of the reversing spring is provided with a reversing ball, the reversing ring is provided with a plurality of reversing grooves, and the reversing grooves are connected with the reversing ball in a clamping way, so that the reversing ring is relatively fixed on the ratchet seat, a convex strip on the reversing ring acts on a pawl on one side of the ratchet seat, or pawls on two sides of the ratchet seat are all arranged in the buffer groove.
Further, the ratchet seat is provided with a second clamping groove, the clamping insert is arranged in the second clamping groove and comprises a fixing plate and a spring strip, one end of the spring strip is fixed on the fixing plate, the other end of the spring strip is provided with the clamping insert, the spring strip is extruded to enable the reversing spring to be sleeved outside the spring strip, and when the spring strip is restored to the original state, the clamping insert is propped against the reversing spring to limit the spring on the clamping insert.
Further, the clamping block is provided with an inclined plane, and the inclined plane is convenient for the reversing spring to be sleeved outside the elastic strip.
Further, the reversing ring is provided with an annular groove, the ratchet seat is provided with an annular ring, and the annular ring is limited in the annular groove, so that the reversing ring rotates along the annular ring.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
according to the utility model, the ratchet seat is provided with the ratchet seat cover plate, the ratchet seat cover plate is provided with the limiting hole, when the connecting pipe fitting penetrates into the ratchet seat, the connecting pipe fitting penetrates through the limiting hole, so that the pipe body of the connecting pipe fitting always rotates in the limiting hole, the pipe body is parallel to the central line of the ratchet seat, and the inner wall of the ratchet seat is not attached to the rotating pipe fitting when the connecting pipe fitting rotates, thereby avoiding affecting the rotation of the connecting pipe fitting and ensuring the rotation flexibility of the ratchet head.
Drawings
The utility model is further described below with reference to the accompanying drawings:
FIG. 1 is a diagram of a first embodiment of the present utility model;
fig. 2 is a front view of the ratchet seat cover plate of the present utility model;
FIG. 3 is a side view of a pawl according to the present utility model;
FIG. 4 is a front view of a reversing ring of the present utility model;
fig. 5 is a bottom view and a sectional view A-A of the ratchet seat of the present utility model
FIG. 6 is a schematic diagram of a commutator ring according to the present utility model;
FIG. 7 is a partial cross-sectional view of a connecting tube of the present utility model;
FIG. 8 is a cross-sectional view of the ratchet head of the present utility model;
fig. 9 is a diagram of a second embodiment of the present utility model.
In the figures, 1-ratchet head; 2-ratchet seat; 3-ratchet seat cover plate; 4-connecting the pipe fittings; 5-pawl; 6-magnetic steel; 7-reversing springs; 8-reversing the marble; 9-reversing rings; 10-shrapnel springs; 11-a first clamping groove; 12-limiting blocks; 13-limiting holes; 14-rotating shaft; 15-a buffer tank; 16-reversing grooves; 17-convex strips; 18-a limit groove; 19-arc grooves; 20-an annular ring; 21-ratchet teeth; 22-a fixed plate; 23-spring strips; 24-clamping the embedded block; 25-caulking groove; 26-annular groove.
Detailed Description
As shown in fig. 1 to 8, in a first embodiment of the present utility model,
a ratchet screwdriver, comprising: the ratchet head 1 is used for fixing a screwdriver bit; the inner side of the ratchet head 1 is provided with a ratchet 21; the ratchet seat 2 is movably provided with opposite pawls 5, and the pawls 5 limit the rotation direction of the ratchet head 1 by engaging with the ratchet 21; the ratchet seat 2 is connected with a screwdriver handle; the reversing ring 9 is arranged outside the pawl 5, and the engagement of the pawl 5 and the ratchet 21 is controlled; the ratchet seat cover plate 3 is arranged on the ratchet seat 2, the limiting hole 13 is formed in the ratchet seat cover plate 3, when the connecting pipe fitting 4 penetrates into the ratchet seat 2, the connecting pipe fitting 4 penetrates through the limiting hole 13, so that the pipe body of the connecting pipe fitting 4 always rotates in the limiting hole 13, is parallel to the central line of the ratchet seat 2, and does not fit with the inner wall of the ratchet seat 2 during rotation, and the problem in the prior art is solved.
The ratchet seat 2 is provided with a limit groove 18, the ratchet seat cover sheet 3 is provided with a limit block 12, and the limit block 12 is in clamping connection with the limit groove 18, so that the ratchet seat cover sheet 3 is fixed on the ratchet seat 2.
The end part of the connecting pipe fitting 4 is provided with a caulking groove 25, magnetic steel 6 is arranged in the caulking groove 25, and the magnetic steel 6 is used for magnetically attracting the screwdriver bit so as to be convenient for fixing the screwdriver bit.
The ratchet seat 2 is provided with an arc-shaped groove 19, the pawl 5 is provided with a rotating shaft 14, the rotating shaft 14 is limited in the arc-shaped groove 19, and the rotating shaft rotates around the arc-shaped groove 19. The ratchet seat 2 is provided with a first clamping groove 11, the elastic sheet spring 10 is limited in the first clamping groove 11, and the elastic sheet spring 10 acts on the pawl 5 to enable the pawl 5 to engage the ratchet 21.
The inside of the reversing ring 9 is provided with a plurality of convex strips 17 which are arranged in a circumferential direction, buffer grooves 15 are formed between the convex strips 17, when the reversing ring 9 rotates until the convex strips 17 prop against the pawl 5, the pawl 5 is separated from engagement with the ratchet teeth 21, and when the reversing ring 9 rotates until the pawl 5 is arranged in the buffer grooves 15, the pawl 5 is kept engaged with the ratchet teeth 21.
The ratchet seat 2 is provided with a reversing spring 7, the end part of the reversing spring 7 is provided with a reversing ball 8, the reversing ring 9 is provided with a plurality of reversing grooves 16, and the reversing grooves 16 are in clamping connection with the reversing ball 8, so that the reversing ring 9 is relatively fixed on the ratchet seat 2, a convex strip 17 on the reversing ring 9 acts on a pawl 5 on one side of the ratchet seat 2, or the pawls 5 on two sides of the ratchet seat 2 are all arranged in a buffer groove 15. The reversing ring 9 is relatively fixed on the ratchet seat 2, so that two conditions are generated: the convex bar 17 is propped against the pawl 5 at one side of the ratchet seat 2, the pawl 5 moves towards the direction of compressing the elastic sheet spring 10, namely, the pawl 5 is separated from the engagement of the ratchet 21, the pawl 5 at the other side of the ratchet seat 2 is in the buffer groove 15, the pawl 5 is always engaged with the ratchet 21, the movement path of the ratchet head 1 is limited, the ratchet head 1 moves unidirectionally, or the pawls 5 at two sides on the ratchet seat 2 are in the buffer groove 15, and the pawls 5 at two sides are engaged with the ratchet 21, so that the ratchet head 1 does not rotate.
The reversing ring 9 is provided with an annular groove 26, the ratchet seat 2 is provided with an annular ring 20, and the annular ring 20 is limited in the annular groove 26, so that the reversing ring 9 rotates along the annular ring 20.
As shown in fig. 9, in the second embodiment of the present utility model,
on the basis of the first embodiment, the ratchet seat 2 is provided with a second clamping groove, a clamping insert is arranged in the second clamping groove, the clamping insert comprises a fixing plate 22 and a spring strip 23, one end of the spring strip 23 is fixed on the fixing plate 22, the end part of the other end is provided with a clamping insert 24, the spring strip 23 is extruded to enable the reversing spring 7 to be sleeved outside the spring strip 23, and when the spring strip 23 is restored to the original state, the clamping insert 24 props against the reversing spring 7 to limit the spring on the clamping insert.
The clamping block 24 is provided with an inclined plane which is convenient for the reversing spring 7 to be sleeved outside the elastic strip 23.
The above is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications and the like made on the basis of the present utility model to solve the substantially same technical problems and achieve the substantially same technical effects are included in the scope of the present utility model.
Claims (10)
1. A ratchet wheel screw driver, which is characterized in that,
comprising the following steps: the ratchet head is used for fixing the screwdriver bit; the inner side of the ratchet head is provided with a ratchet;
the ratchet seat is movably provided with opposite pawls which are meshed with the ratchet teeth,
limiting the direction of rotation of the ratchet head; the ratchet seat is connected with a screwdriver handle;
the reversing ring is arranged on the outer side of the pawl and used for controlling the engagement of the pawl and the ratchet;
the connecting pipe fitting penetrates through the ratchet seat and is connected with the ratchet head, and the connecting pipe fitting is characterized in that: the ratchet seat is provided with a ratchet seat cover plate, the ratchet seat cover plate is provided with a limiting hole, the limiting hole is matched with the connecting pipe fitting, and the connecting pipe fitting penetrates through the limiting hole, so that the connecting pipe fitting is not attached to the inner wall of the ratchet seat when rotating in the ratchet seat.
2. The ratcheting screwdriver of claim 1, wherein: the ratchet seat is provided with a limiting groove, the ratchet seat cover piece is provided with a limiting block, and the limiting block is connected with the limiting groove in a clamping manner, so that the ratchet seat cover piece is fixed on the ratchet seat.
3. The ratcheting screwdriver of claim 1, wherein: the end part of the connecting pipe fitting is provided with an embedding groove, magnetic steel is arranged in the embedding groove, and the magnetic steel is used for magnetically attracting the screwdriver bit.
4. The ratcheting screwdriver of claim 1, wherein: the ratchet seat is provided with an arc-shaped groove, the pawl is provided with a rotating shaft, and the rotating shaft is limited in the arc-shaped groove, so that the pawl rotates on the ratchet seat.
5. The ratcheting screwdriver of claim 1, wherein: the ratchet seat is provided with a first clamping groove, the elastic sheet spring is limited in the first clamping groove, and the elastic sheet spring acts on the pawl to enable the pawl to be meshed with the ratchet.
6. The ratcheting screwdriver of claim 5, wherein: the reversing ring is characterized in that a plurality of convex strips which are arranged in a circumferential direction are arranged on the inner side of the reversing ring, buffer grooves are formed between the convex strips, when the reversing ring rotates to the position that the convex strips are propped against the pawl, the pawl is separated from the engagement of the ratchet teeth, and when the reversing ring rotates to the position that the pawl is arranged in the buffer grooves, the pawl is kept engaged with the ratchet teeth.
7. The ratcheting screwdriver of claim 6, wherein: the ratchet seat is provided with a reversing spring, the end part of the reversing spring is provided with a reversing ball, the reversing ring is provided with a plurality of reversing grooves, the reversing grooves are connected with the reversing ball in a clamping way, so that the reversing ring is relatively fixed on the ratchet seat, the convex strips on the reversing ring act on the pawl at one side of the ratchet seat, or the pawls at two sides of the ratchet seat are all arranged in the buffer groove.
8. The ratcheting screwdriver of claim 7, wherein: the ratchet seat is provided with a second clamping groove, an embedded piece is arranged in the second clamping groove and comprises a fixing plate and an elastic strip, one end of the elastic strip is fixed on the fixing plate, the other end of the elastic strip is provided with the embedded piece, the elastic strip is extruded to enable the reversing spring to be sleeved outside the elastic strip, and when the elastic strip is restored to the original state, the embedded piece abuts against the reversing spring to limit the spring on the embedded piece.
9. The ratcheting screwdriver of claim 8, wherein: the clamping block is provided with an inclined plane, and the inclined plane is convenient for the reversing spring to be sleeved outside the elastic strip.
10. The ratcheting screwdriver of claim 1, wherein: the reversing ring is provided with an annular groove, the ratchet seat is provided with an annular ring, and the annular ring is limited in the annular groove, so that the reversing ring rotates along the annular ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320828401.0U CN219819546U (en) | 2023-04-04 | 2023-04-04 | Ratchet screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320828401.0U CN219819546U (en) | 2023-04-04 | 2023-04-04 | Ratchet screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219819546U true CN219819546U (en) | 2023-10-13 |
Family
ID=88246440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320828401.0U Active CN219819546U (en) | 2023-04-04 | 2023-04-04 | Ratchet screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219819546U (en) |
-
2023
- 2023-04-04 CN CN202320828401.0U patent/CN219819546U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |