CN209999067U - kinds of corner screwdriver - Google Patents
kinds of corner screwdriver Download PDFInfo
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- CN209999067U CN209999067U CN201920851519.9U CN201920851519U CN209999067U CN 209999067 U CN209999067 U CN 209999067U CN 201920851519 U CN201920851519 U CN 201920851519U CN 209999067 U CN209999067 U CN 209999067U
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Abstract
The utility model discloses an kind of corner screwdriver, include the screwdriver handle and install the screwdriver head on the screwdriver handle, the screwdriver head is the anchor clamps of centre gripping screwdriver head end or is screwdriver head end, still includes input shaft and switching-over piece, the input shaft is installed on the screwdriver handle, and the output of input shaft passes through the switching-over piece and links to each other with the screwdriver head, the switching-over piece is as the torque transmission piece between input shaft and the screwdriver head, and the switching-over piece is used for realizing the switching-over transmission, at corner screwdriver during operation, input shaft and screwdriver head are all rotatory around self axis separately.
Description
Technical Field
The utility model relates to a screw is torn open, is unloaded with instrument technical field, especially relates to kinds of corner screwdrivers.
Background
In the actual assembling and maintaining process, if the bolt screw is in a narrow space, the common straight-bar screwdriver and the ratchet screwdriver cannot enter the operating space due to the limitation of space size, so that the bolt screw cannot be assembled and disassembled.
Therefore, how to quickly and conveniently realize the dismounting of the bolt and the screw becomes a practical problem to be solved in the assembling and maintaining work.
In view of the above problems, in the prior art, as disclosed in application No. 201220227263.2, a utility model with patent name medical combined universal screwdriver provides kinds of screwdrivers with freely angled tool bits and tool bars for convenient operation in narrow space.
, optimizing the structural design of the screwdriver so that the screwdriver can be used to conveniently disassemble and assemble the screw in the application process, which is a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
To the structural design of the step optimization screwdriver that advances that above-mentioned proposed to make it can be more convenient completion screw tear open, adorn the operation in the application, be the technical problem that the skilled person in the art waited to solve urgently, the utility model provides a kind of corner screwdrivers, this corner screwdriver's structural design not only convenient to use, controllable precision is high, and the dependence to operating space is lower simultaneously.
In order to solve the problems, the utility model provides an kinds of corner screwdrivers solves the problem through the following technical essential that kinds of corner screwdrivers include the screwdriver handle and install the screwdriver head on the screwdriver handle, the screwdriver head is the anchor clamps of centre gripping screwdriver head end or for screwdriver head end, still includes input shaft and switching-over piece, the input shaft is installed on the screwdriver handle, and the output of input shaft links to each other with the screwdriver head through the switching-over piece, the switching-over piece is as the torque transmission piece between input shaft and the screwdriver head, and the switching-over piece is used for realizing the switching-over transmission;
when the corner screwdriver works, the input shaft and the screwdriver head respectively rotate around the axis of the input shaft and the screwdriver head.
Among the prior art, structural design to corner screwdriver, like the technical scheme that application number 201220227263.2 provided, although realized among the prior art and rotated the switching-over transmission, the screwdriver of convenient operation in narrow space, when the actual use, owing to not only need exert the torque for the screwdriver, simultaneously because the universal joint is as the intermediate junction spare of screwdriver handle end and tool bit end, for the condition that prevents the cooperation inefficacy of nut and screwdriver or the excessive damage of nut appears, the cooperation condition of the screwdriver of the overhead installation of screwdriver of the careless control screwdriver of event and screw cap, so current corner screwdriver is when being used, and the control to it makes its use have the awkward condition. Meanwhile, in the prior art, the structural design of the corner screwdriver enables the screwdriver to be used, the screwdriver needs to be used as a rotation original point, and the screw can be dismounted only by integral rotation, so that the problem of large required operation space still exists in the use process of the screwdriver. The screwdriver head end is the screwdriver head end and is also called as the screwdriver head of the screwdriver.
In this scheme, screwdriver bit directly is as the tool bit or as the centre gripping the anchor clamps of tool bit, the switching-over piece just is used for realizing the switching-over transmission as the intermediate junction spare of screwdriver bit and input shaft, the input shaft is as this corner screwdriver and at the input part of the required torque of screwdriver bit at the during operation, transmits for screwdriver bit through the switching-over piece promptly, the screwdriver handle is used for screwdriver bit and input shaft provide the mounted position to it is fixed to realize the relative position of screwdriver bit and input shaft.
In the scheme, when the corner screwdriver works, the input shaft and the screwdriver head respectively rotate around the axis of the input shaft and the screwdriver head respectively, namely when the corner screwdriver is specifically used, only the torque for enabling the input shaft to rotate around the screwdriver head needs to be applied to the input shaft, the torque is transmitted to the screwdriver head through reversing transmission of the reversing piece, so that the screwdriver head rotates around the axis of the screwdriver head, and dismounting and mounting of a corresponding screw are completed.
The technical scheme of step is as follows:
as the concrete installation form of input shaft and screwdriver bit on the screwdriver handle, set up to: the input shaft and the screwdriver head are both arranged on the screwdriver handle through a pore channel arranged on the screwdriver handle;
the axis of the hole for matching with the input shaft is collinear with the axis of the input shaft;
the axis of the bore for cooperation with the screwdriver bit is collinear with the axis of the screwdriver bit. This scheme of adoption promptly through pore restraint corresponds input shaft and screwdriver head's motion state on the screwdriver handle: the input shaft and the screwdriver head can rotate in the corresponding hole channels through the hole channel limitation.
In order to optimize the stress of the corner screwdriver when in use, the corner screwdriver is set as follows: the screwdriver head is in a stepped shaft shape with a step surface arranged on the side surface, and the step surface faces the rear side of the screwdriver head;
the screwdriver comprises a screwdriver head and a screwdriver handle, wherein the screwdriver head is arranged on the screwdriver handle, the screwdriver handle is provided with an end face used for supporting the step face, the front side of the screwdriver head is an side used for clamping the screwdriver head or a side provided with a cutting edge on the screwdriver head, and the rear side of the screwdriver head is the opposite side of the front side.
easy-to-realize modes are adopted as the reversing piece, the reversing piece is a flexible shaft of which the end is connected with the output end of the input shaft and the end is connected with the input end of the screwdriver head.
Compared with a flexible shaft, the universal joint is adopted as the reversing piece, so that the structure of the corner screwdriver is compact and light, and the scheme has the characteristic of convenience in assembly.
In order to enable the included angle between the axes of the input shaft and the screwdriver head to be larger and further reduce the requirement of the screwdriver with the turning angle on space size in steps, the number of the universal joints is larger than or equal to 2, the universal joints are sequentially connected in series, and when the universal joint is in specific use, two adjacent universal joints can form a series connection relationship through the middle shaft.
are easy ways of realizing the reversing piece, namely the gear set connected between the screwdriver head and the input shaft in series, and the mode has simple structure, but has high requirements on the size and the assembly precision of the gear set in consideration of the use convenience.
As technical solutions for conveniently applying torque to the input shaft, the technical solution is that a roller for applying torque to the input shaft is connected to the input shaft, and the axis of the roller is collinear with the axis of the input shaft.
, the screwdriver handle comprises a handle section and a second handle section, the handle section is a bent rod-shaped structure provided with an inflection point, the side of the inflection point is a rod section, and the other side of the inflection point is a second rod section;
the screwdriver head is arranged on the free end of the th rod section;
the input shaft is arranged on the second rod section;
the second rod section is also provided with a groove-shaped space, the roller is partially embedded into the groove-shaped space, and the axial direction of the roller is along the length direction of the second rod section;
the roller is provided with a pore canal of which the axis is collinear with the axis of the roller, the input shaft is embedded into the pore canal, and a second pin shaft is arranged between the roller and the input shaft;
the rear end of the th handle section is connected with the second handle section, the th handle section is in a flat rod shape, and the second handle section is in a cylindrical shape;
the axis of the roller is parallel to the axis of the second handle section, the roller is located at the front end of the second handle section, in the scheme, the screwdriver handle is designed to be a split type design comprising a th handle section and the second handle section, the th handle section is in a flat rod shape, the second handle section is in a cylindrical shape, therefore, the th handle section is structurally designed to improve the capability of being embedded into a narrow space, the second handle section is structurally designed to facilitate holding of the corner screwdriver and improve the comfort of holding, the second pin shaft transmits torque between the roller and the input shaft through shearing, after assembly is completed, the roller is located in the middle of a section behind an inflection point and located at the front end of the second handle section, therefore, a user can use the corner screwdriver with one hand, for example, the roller is stirred by using a thumb, for the scheme that the reversing piece is connected with the screwdriver head, for the scheme that the pin shaft is arranged, for the reversing piece is connected with the screwdriver head, for example, the th pin shaft is arranged between the reversing piece and the input shaft head, the material is arranged on two sides of the groove-shaped shaft section, and the groove-shaped opening is formed by the material for supporting the groove-shaped opening of the roller shaft, and the material for the groove-shaped input shaft, and the material is arranged on the groove-shaped shaft section, and the shaft, and the groove-shaped opening of the shaft is arranged on the shaft, and the shaft.
As realization modes for convenient processing and assembly, the second handle section is a hollow rod, the rear end of the second rod section penetrates through the hollow rod, and the free end of the second rod section forms a screw connection relation with the rear end of the second handle section through a fixing gasket and a connecting screw.
The utility model discloses following beneficial effect has:
in this scheme, screwdriver bit directly is as the tool bit or as the centre gripping the anchor clamps of tool bit, the switching-over piece just is used for realizing the switching-over transmission as the intermediate junction spare of screwdriver bit and input shaft, the input shaft is as this corner screwdriver and at the input part of the required torque of screwdriver bit at the during operation, transmits for screwdriver bit through the switching-over piece promptly, the screwdriver handle is used for screwdriver bit and input shaft provide the mounted position to it is fixed to realize the relative position of screwdriver bit and input shaft.
In the scheme, when the corner screwdriver works, the input shaft and the screwdriver head respectively rotate around the axis of the input shaft and the screwdriver head respectively, namely when the corner screwdriver is specifically used, only the torque for enabling the input shaft to rotate around the screwdriver head needs to be applied to the input shaft, the torque is transmitted to the screwdriver head through reversing transmission of the reversing piece, so that the screwdriver head rotates around the axis of the screwdriver head, and dismounting and mounting of a corresponding screw are completed.
Drawings
Fig. 1 is a schematic structural view of kinds of corner screw drivers according to the present invention, which is a partial sectional view;
fig. 2 is a schematic structural view of specific embodiments of kinds of corner screwdrivers according to the present invention, wherein the schematic structural view is a schematic perspective view;
fig. 3 is a state diagram of concrete application occasions of the kinds of corner screwdrivers concrete embodiments, the state diagram is used for reflecting that the front end of the corner screwdriver passes through the gap, and the space size of the corresponding screw is not depended on the radial direction of the screw when the corresponding screw is disassembled and assembled.
The marks in the figure are respectively 1, a screwdriver head, 2, th pin shafts, 3, a reversing piece, 4, an intermediate shaft, 5, th handle sections, 6, an input shaft, 7, a roller, 8, second pin shafts, 9, second handle sections, 10, a connecting screw, 11, a fixed gasket, W1, a front blocking surface, W2 and a rear blocking surface.
Detailed Description
The present invention will be described in further detail in with reference to the following examples, but the present invention is not limited to the following examples:
example 1:
as shown in fig. 1 to 3, the kinds of corner screwdrivers comprise a screwdriver handle and a screwdriver bit 1 mounted on the screwdriver handle, wherein the screwdriver bit 1 is a clamp for clamping the screwdriver bit or a screwdriver bit, the corner screwdrivers further comprise an input shaft 6 and a reversing piece 3, the input shaft 6 is mounted on the screwdriver handle, an output end of the input shaft 6 is connected with the screwdriver bit 1 through the reversing piece 3, the reversing piece 3 is used as a torque transmission piece between the input shaft 6 and the screwdriver bit 1, and the reversing piece 3 is used for realizing reversing transmission;
when the corner screwdriver works, the input shaft 6 and the screwdriver head 1 respectively rotate around the axis of the input shaft and the axis of the screwdriver head.
Among the prior art, structural design to corner screwdriver, like the technical scheme that application number 201220227263.2 provided, although realized among the prior art and rotated the switching-over transmission, the screwdriver of convenient operation in narrow space, when the actual application, owing to not only need exert the torque for the screwdriver, simultaneously because the universal joint is as the intermediate junction spare of screwdriver handle end and tool bit end, for the condition that prevents the cooperation inefficacy of nut and screwdriver or the nut excessively harms appears, the cooperation condition of the screwdriver of installation and the screw cap on the screwdriver bit 1 of the needs control deliberately, so current corner screwdriver is when being used, and the control to it makes its use have the inconvenient condition. Meanwhile, in the prior art, the structural design of the corner screwdriver enables the screwdriver to be used, the screwdriver needs to be used as a rotation original point, and the screw can be dismounted only by integral rotation, so that the problem of large required operation space still exists in the use process of the screwdriver. The screwdriver head end is the screwdriver head end and is also called as the screwdriver head of the screwdriver.
In this scheme, screwdriver bit 1 directly does the tool bit or as the centre gripping the anchor clamps of tool bit, reversing member 3 just is used for realizing the switching-over transmission as the intermediate junction spare of screwdriver bit 1 and input shaft 6, input shaft 6 is as the input member of this corner screwdriver at the required torque of screwdriver bit 1, transmits for screwdriver bit 1 through reversing member 3 promptly, the screwdriver handle be used for doing screwdriver bit 1 and input shaft 6 provide the mounted position to it is fixed with the relative position of input shaft 6 to realize screwdriver bit 1.
In the scheme, when the corner screwdriver works, the input shaft 6 and the screwdriver head 1 respectively rotate around the axis of the input shaft 6, namely when the corner screwdriver is specifically used, only torque for enabling the input shaft 6 to rotate around the screwdriver head 1 is required to be applied to the input shaft 6, and the torque is transmitted to the screwdriver head 1 through reversing transmission of the reversing piece 3, so that the screwdriver head 1 rotates around the axis of the screwdriver head 1 to finish dismounting and mounting of a corresponding screw.
Example 2:
the embodiment is further defined by on the basis of embodiment 1, and as shown in fig. 1 to 3, as specific installation forms of the input shaft 6 and the screwdriver bit 1 on the screwdriver handle, the arrangement is that the input shaft 6 and the screwdriver bit 1 are both installed on the screwdriver handle through a hole arranged on the screwdriver handle;
the axis of the port for cooperation with the input shaft 6 is collinear with the axis of the input shaft 6;
the axis of the bore for cooperation with the screwdriver bit 1 is collinear with the axis of the screwdriver bit 1. This scheme of adoption promptly through the pore restraint corresponds input shaft 6 and the motion state of screwdrivers blade 1 on the screwdriver handle: the passage defines that both the input shaft 6 and the screwdriver bit 1 can rotate in the corresponding passage.
In order to optimize the stress of the corner screwdriver when in use, the corner screwdriver is set as follows: the screwdriver head 1 is in a stepped shaft shape with a stepped surface arranged on the side surface, and the stepped surface faces the rear side of the screwdriver head 1;
the screwdriver comprises a screwdriver head 1 and a screwdriver nut, wherein the screwdriver head is arranged on a screwdriver handle, the screwdriver handle is arranged on the screwdriver handle, the screwdriver handle is provided with an end face used for supporting the step face, the front side of the screwdriver head 1 is an side used for clamping the screwdriver head or a side provided with a cutting edge on the screwdriver head, and the rear side of the screwdriver head is the opposite side of the front side.
As easy-to-realize modes of the reversing piece 3, the reversing piece 3 is a flexible shaft with ends connected with the output end of the input shaft 6 and ends connected with the input end of the screwdriver head 1.
As easy-to-realize modes of the reversing piece 3, the reversing piece 3 is a universal joint with an input end connected with the output end of the input shaft 6 and an output end connected with the input end of the screwdriver bit 1. compared with a flexible shaft, the adoption of the universal joint as the reversing piece 3 can ensure that the structure of the corner screwdriver is compact and the weight is light, and the scheme also has the characteristic of convenient assembly.
In order to enable the included angle between the axes of the input shaft 6 and the screwdriver bit 1 to be larger and further reduce the requirement of the screwdriver with the turning angle on the space size in steps, the number of the universal joints is larger than or equal to 2, and the universal joints are sequentially connected in series, and when the universal joint is used specifically, the two adjacent universal joints can form a series connection relation through the intermediate shaft 4.
As the reversing piece 3, are easy to realize, the reversing piece 3 is a gear set connected between the screwdriver head 1 and the input shaft 6 in series, and the structure is simple, but the requirements on the size and the assembly precision of the gear set are high in consideration of the use convenience.
As technical solutions for conveniently applying torque to the input shaft 6, the input shaft 6 is also connected with a roller 7 for applying torque to the input shaft 6, and the axis of the roller 7 is collinear with the axis of the input shaft 6.
, the screwdriver handle comprises a handle section 5 and a second handle section 9, the handle section 5 is a bent rod-shaped structure provided with an inflection point, the side of the inflection point is a -th rod section, and the other side of the inflection point is a second rod section;
the screwdriver head 1 is arranged on the free end of the th rod section;
the input shaft 6 is mounted on the second rod section;
the second rod section is also provided with a groove-shaped space, the roller 7 is partially embedded into the groove-shaped space, and the axial direction of the roller 7 is along the length direction of the second rod section;
a pore passage with the axis collinear with the axis of the roller 7 is formed in the roller 7, the input shaft 6 is embedded into the pore passage, and a second pin shaft 8 is further arranged between the roller 7 and the input shaft 6;
the rear end of the th handle section 5 is connected with the second handle section 9, the th handle section 5 is in a flat rod shape, and the second handle section 9 is in a cylindrical shape;
in the scheme, the screwdriver handle is designed to be a split type design comprising a th handle section 5 and a second handle section 9, the th handle section 5 is in a flat rod shape, the second handle section 9 is in a cylindrical shape, therefore, the th handle section 5 is designed to improve the capability of being embedded into a narrow space, the second handle section 9 is designed to facilitate holding of the corner screwdriver and improve the holding comfort, the second pin shaft 8 transmits torque between the roller 7 and the input shaft 6 through shearing, after assembly, the roller 7 is located in the middle of a section at the rear side of an inflection point and located at the front end of the second handle section 9, so that a user can use the corner screwdriver with one hand, if the roller 7 is stirred by a thumb, the scheme for connecting the reversing piece 3 and the screwdriver head 1 can also adopt a setting mode, if the reversing piece 3 and the screwdriver head are connected by a thumb, if the second pin shaft 3 and the input shaft 6 are arranged in a mode, the shaft inlet hole channel 82 of the second pin shaft 6 is formed by arranging a through the material of the second pin shaft 6, and the shaft 6 is preferably arranged on the shaft inlet hole channel 82 for supporting the shaft section.
As realization modes for convenient processing and assembly, the second handle section 9 is a hollow rod, the rear end of the second rod section passes through the hollow rod, and the free end of the second rod section forms a screw connection relation with the rear end of the second handle section 9 through a fixing gasket 11 and a connecting screw 10.
It will be understood by those skilled in the art that the present invention may be embodied in many other forms without departing from the spirit or essential attributes thereof, and it is not intended to limit the invention to the specific forms disclosed herein as illustrated in or to other embodiments.
Claims (10)
- The corner screwdriver comprises a screwdriver handle and a screwdriver head (1) arranged on the screwdriver handle, wherein the screwdriver head (1) is a clamp for clamping the screwdriver head end or the screwdriver head end, and the corner screwdriver is characterized by further comprising an input shaft (6) and a reversing piece (3), the input shaft (6) is arranged on the screwdriver handle, the output end of the input shaft (6) is connected with the screwdriver head (1) through the reversing piece (3), the reversing piece (3) is used as a torque transmission piece between the input shaft (6) and the screwdriver head (1), and the reversing piece (3) is used for realizing reversing transmission;when the corner screwdriver works, the input shaft (6) and the screwdriver head (1) respectively rotate around the axis of the input shaft and the screwdriver head.
- 2. The kinds of corner screwdriver of claim 1, wherein the input shaft (6) and the screwdriver bit (1) are both mounted on the screwdriver shank through a hole arranged on the screwdriver shank;the axis of the hole for matching with the input shaft (6) is collinear with the axis of the input shaft (6);the axis of the pore canal used for matching with the screwdriver head (1) is collinear with the axis of the screwdriver head (1).
- 3. corner screwdriver according to claim 2, wherein the screwdriver bit (1) is shaped like a stepped shaft with a step surface on its side, and the step surface faces the rear side of the screwdriver bit (1);the screwdriver handle is further provided with an end face used for supporting the step face.
- 4. The corner screwdriver of claim 1, wherein the reversing element (3) is a flexible shaft with ends connected to the output end of the input shaft (6) and ends connected to the input end of the screwdriver bit (1).
- 5. corner screwdriver according to claim 1, wherein the reversing element (3) is a universal joint with an input end connected to the output end of the input shaft (6) and an output end connected to the input end of the screwdriver bit (1).
- 6. The corner screwdriver of claim 5, wherein the number of said universal joints is greater than or equal to 2, and the universal joints are connected in series.
- 7. corner screwdriver according to claim 1, wherein the reversing element (3) is a gear set connected in series between the screwdriver bit (1) and the input shaft (6).
- 8. The corner screwdriver of claim 1, wherein the input shaft (6) is further connected with a roller (7) for applying torque to the input shaft (6), and the axis of the roller (7) is collinear with the axis of the input shaft (6).
- 9. The corner screwdriver of claim 8, wherein the screwdriver shank comprises a shank segment (5) and a second shank segment (9), the shank segment (5) is a bent rod-shaped structure with an inflection point arranged thereon, the side of the inflection point is the shank segment, and the other side of the inflection point is the second shank segment;the screwdriver head (1) is arranged on the free end of the th rod section;the input shaft (6) is mounted on the second rod section;the second rod section is also provided with a groove-shaped space, the roller (7) is partially embedded into the groove-shaped space, and the axial direction of the roller (7) is along the length direction of the second rod section;a pore passage with the axis collinear with that of the roller (7) is arranged on the roller (7), the input shaft (6) is embedded into the pore passage, and a second pin shaft (8) is also arranged between the roller (7) and the input shaft (6);the rear end of the th handle section (5) is connected with the second handle section (9), the th handle section (5) is in a flat rod shape, and the second handle section (9) is in a cylindrical shape;the axis of the roller (7) is parallel to the axis of the second handle section (9), and the roller is positioned at the front end of the second handle section.
- 10. corner screwdriver according to claim 9, wherein the second shank segment (9) is a hollow rod through which the rear end of the second shank segment passes, and the free end of the second shank segment is in screw connection with the rear end of the second shank segment (9) via a fixing washer (11) and a connecting screw (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920851519.9U CN209999067U (en) | 2019-06-06 | 2019-06-06 | kinds of corner screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920851519.9U CN209999067U (en) | 2019-06-06 | 2019-06-06 | kinds of corner screwdriver |
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| CN209999067U true CN209999067U (en) | 2020-01-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091275A (en) * | 2019-06-06 | 2019-08-06 | 中国工程物理研究院机械制造工艺研究所 | A kind of corner screwdriver |
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2019
- 2019-06-06 CN CN201920851519.9U patent/CN209999067U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091275A (en) * | 2019-06-06 | 2019-08-06 | 中国工程物理研究院机械制造工艺研究所 | A kind of corner screwdriver |
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