CN219819553U - Telescopic screwdriver - Google Patents
Telescopic screwdriver Download PDFInfo
- Publication number
- CN219819553U CN219819553U CN202321075363.2U CN202321075363U CN219819553U CN 219819553 U CN219819553 U CN 219819553U CN 202321075363 U CN202321075363 U CN 202321075363U CN 219819553 U CN219819553 U CN 219819553U
- Authority
- CN
- China
- Prior art keywords
- ratchet
- pawl
- reversing
- screwdriver
- ratchet seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000005299 abrasion Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 238000000034 method Methods 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
Abstract
The utility model discloses a telescopic screwdriver, wherein a pawl is provided with a meshing part, the meshing part is in a round angle shape, the meshing part is meshed with a ratchet of a ratchet head, the abrasion degree of the ratchet to the meshing part is reduced, the use of the pawl is maintained, the service time of the pawl is prolonged, the smoothness of the pawl when moving unidirectionally on the ratchet is further improved, and the rotation flexibility of the ratchet head and a screwdriver bit is further improved.
Description
Technical Field
The utility model belongs to the technical field of screwdrivers, and particularly relates to a telescopic 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. In the prior art, the pawl is meshed with the ratchet of the ratchet head, the meshed part of the pawl is in a sharp angle shape, and the pawl is required to be rubbed with the ratchet continuously in the use process of the screwdriver head, so that the abrasion speed is very high, and the telescopic screwdriver is provided.
Disclosure of Invention
The utility model aims to solve the technical problems in the prior art and provide a telescopic screwdriver, which reduces the abrasion of a pawl and improves the durability of the pawl by arranging a circular-angle-shaped meshing part on the pawl.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a telescopic screwdriver, comprising: 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 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 and is connected with the ratchet head, the pawl is provided with a meshing part, and the meshing part is in a round angle shape and meshed with the ratchet.
Further, 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 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, 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 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 periphery of connecting pipe fitting tip is equipped with the clamp spare for the magnet steel is spacing in the caulking groove.
Further, the ratchet head is equipped with the connecting block, and the connecting block is equipped with the card and wraps the strip, and the card wraps the strip and is convex, and the clamp strip sets up on connecting block both sides relatively, and the clamp strip is used for fixing screwdriver batch head.
Further, the clamp strip tip is equipped with connecting portion, and connecting portion is equipped with first screw hole, and the connecting block is equipped with the second screw hole, is equipped with the screw pole in first screw hole and the second screw hole for the clamp strip is fixed at the ratchet head.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
the pawl is provided with the meshing part, the meshing part is in a round angle shape, the meshing part is meshed with the ratchet teeth of the ratchet head, the abrasion degree of the ratchet teeth to the meshing part is reduced, the use time of the pawl is prolonged, the service time of the pawl is prolonged, the smoothness of the pawl in unidirectional movement on the ratchet teeth is further prolonged, and the rotation flexibility of the ratchet head and the screwdriver bit is further improved.
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 schematic view of the pawl of 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 front view of a ratchet head in accordance with a second embodiment of the present utility model;
FIG. 10 is a schematic view showing a partial structure of a ratchet head according to 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 9; 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-connecting blocks; 21-ratchet teeth; 22-a lead screw; 23-clamping members; 24-a fixed groove; 25-caulking groove; 26-clamping straps; 27-a connection; 28-engagement portion.
Detailed Description
As shown in fig. 1 to 8, in a first embodiment of the present utility model,
a telescopic 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 connecting pipe fitting 4 penetrates through the ratchet seat 2, the ratchet head 1 is connected, the pawl 5 is provided with an engagement portion 28, the engagement portion 28 is in a round shape, and the engagement portion 28 is engaged with the ratchet 21. On the premise that the rounded engaging portion 28 can enable the ratchet head 1 to rotate in one direction, the rounded engaging portion 28 can also reduce excessive abrasion and improve the service time of the pawl 5, besides, the rounded engaging portion 28 moves more smoothly from one ratchet 21 to the next ratchet 21, and further the ratchet head 1 and the screwdriver bit can rotate more flexibly.
The ratchet seat 2 is provided with the ratchet seat cover plate 3, the ratchet seat cover plate 3 is provided with the limiting hole 13, the limiting hole 13 is matched with the connecting pipe fitting 4, and the connecting pipe fitting 4 passes through the limiting hole 13, so that the connecting pipe fitting 4 cannot be attached to the inner wall of the ratchet seat 2 when rotating in the ratchet seat 2, and the rotating flexibility of the connecting pipe fitting 4 is ensured.
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 ratchet seat 2 is provided with an arc groove 19, the pawl 5 is provided with a rotating shaft 14, the rotating shaft 14 is limited in the arc groove 19, and the pawl 5 rotates by taking the rotating shaft 14 as a central shaft. 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 ratchet head 1 is equipped with fixed slot 24, and fixed slot 24 embeds has connecting tube 4 and screwdriver to criticize the head, and connecting tube 4 tip is equipped with caulking groove 25, is equipped with magnet steel 6 in the caulking groove 25, and magnet steel 6 is used for magnetism to inhale screwdriver to criticize the head, and connecting tube 4 tip's periphery is equipped with clamp piece 23 for magnet steel 6 is spacing in caulking groove 25. The clamp piece 23 adopts the hoop, and through the structure, the magnetic steel 6 is fixed in the ratchet head 1, so that the magnetic steel 6 can not be carried out from the ratchet head 1 when the screw head is replaced.
As shown in fig. 9 and 10, in the second embodiment of the present utility model,
on the basis of the first embodiment, due to the requirement of a use scene, the screwdriver bit needs to extend and retract at the ratchet head 1, so that the length of the screwdriver bit is adjusted, the ratchet head 1 is provided with a connecting block 20, the connecting block 20 is provided with clamping straps 26, the clamping straps 26 are arc-shaped, the clamping straps 26 are oppositely arranged on two sides of the connecting block 20, and the clamping straps 26 are used for carrying out hoop hoops on the screwdriver bit so as to adjust the length of the screwdriver bit extending out of the ratchet head 1.
The end of the clamping band 26 is provided with a connecting part 27, the connecting part 27 is provided with a first screw hole, the connecting block 20 is provided with a second screw hole, and the first screw hole and the second screw hole are internally provided with a screw rod 22, so that the clamping band 26 is fixed on the ratchet head 1. In use, the relative position of the clamping band 26 on the lead screw 22 is adjusted to accommodate the diameter of the screwdriver bit and thereby fix the screwdriver bit.
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 telescopic screw driver, which comprises a screw driver body,
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 pawl is provided with an engagement portion which is rounded, and the engagement portion is engaged with the ratchet.
2. The telescopic screwdriver of claim 1, wherein: 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.
3. A telescopic screwdriver according to claim 2, 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.
4. The telescopic 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 telescopic screwdriver of claim 4, 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, a buffer groove is 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 groove, the pawl is kept engaged with the ratchet teeth.
6. The telescopic screwdriver of claim 5, 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.
7. The telescopic 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.
8. The telescopic screwdriver of claim 7, wherein: the periphery of connecting pipe fitting tip is equipped with the clamp spare, makes the magnet steel is spacing in the caulking groove.
9. The telescopic screwdriver of claim 1, wherein: the ratchet head is equipped with the connecting block, the connecting block is equipped with the clamp strip, the clamp strip is convex, the clamp strip sets up relatively the connecting block both sides, the clamp strip is used for fixing screwdriver batch head.
10. The telescopic screwdriver of claim 9, wherein: the clamp strip end is equipped with connecting portion, connecting portion are equipped with first screw hole, the connecting block is equipped with the second screw hole, first screw hole with be equipped with the screw pole in the second screw hole, make the clamp strip is fixed ratchet head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321075363.2U CN219819553U (en) | 2023-05-04 | 2023-05-04 | Telescopic screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321075363.2U CN219819553U (en) | 2023-05-04 | 2023-05-04 | Telescopic screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219819553U true CN219819553U (en) | 2023-10-13 |
Family
ID=88248831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321075363.2U Active CN219819553U (en) | 2023-05-04 | 2023-05-04 | Telescopic screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219819553U (en) |
-
2023
- 2023-05-04 CN CN202321075363.2U patent/CN219819553U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |