CN111331546A - Screwdriver head protection device and safe screwdriver head - Google Patents
Screwdriver head protection device and safe screwdriver head Download PDFInfo
- Publication number
- CN111331546A CN111331546A CN202010173586.7A CN202010173586A CN111331546A CN 111331546 A CN111331546 A CN 111331546A CN 202010173586 A CN202010173586 A CN 202010173586A CN 111331546 A CN111331546 A CN 111331546A
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- China
- Prior art keywords
- protection
- pipe sleeve
- batch head
- stabilizing
- protection device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention provides a batch head protection device and a safe batch head, wherein the batch head protection device comprises: the stabilizing mechanism comprises a stabilizing pipe sleeve and a plurality of bearings; the protection mechanism comprises a protection pipe sleeve, a hollow guide cap and an elastic piece, the hollow guide cap is slidably sleeved at one end of the inner cavity of the protection pipe sleeve, the elastic piece is arranged in the inner cavity of the protection pipe sleeve, and one end of the elastic piece is abutted against the hollow guide cap; the cavity connecting portion, its one end and stable pipe box can be dismantled and be connected, and its other end and protection pipe box keep away from cavity direction cap end and can dismantle and be connected, and the inner chamber that stabilizing mean, cavity connecting portion and protection mechanism communicate in proper order forms the cavity that holds the batch head. Still provide a safe batch head, including criticizing first body and the first protection device of above-mentioned batch, criticize first body and wear to establish in the cavity of the first protection device of above-mentioned batch through setting up a plurality of bearings in proper order. The safety bit can prevent the bit from slipping and deviating to scratch a vehicle body and the like, and can prevent hands from being curled in the rotation process of the bit.
Description
Technical Field
The invention relates to the technical field of assembling tools, in particular to a batch head protection device and a safe batch head.
Background
The screwdriver is an ideal quick assembling tool for fasteners, is one of essential tools for most production enterprises, and along with the design of product compactness and complexity, especially in the field of automobile assembly, a plurality of screws are designed at parts with relatively narrow and deep structures and lacking of guide features, and when the screws at the parts are fastened, the following problems exist by adopting the conventional screwdriver head:
1. when the screw is frequently knocked down or the screw runs and deviates, the screwdriver head can mistakenly knock the automobile body or parts, so that the surface of the automobile body is scratched, and the repair cost is increased.
2. The exposed batch head is easy to cause roll accidents if the operation is not proper when the batch head rotates at high speed.
With respect to problem 1, chinese patent 201821281328.5 discloses a movable sleeve bit, comprising: the outer wall of the batch head is provided with a clamping groove; the clamping ring is clamped in the clamping groove in a matched manner and plays a limiting role; the elastic piece is sleeved on the batch head and can stretch out and draw back in a preset stroke along the axial direction of the batch head through the limit of the clamping ring; the sleeve is sleeved on the batch head and can move in a preset stroke along the axial direction of the batch head through the limit of the clamping ring; the snap ring, the elastic piece and the sleeve are coaxially arranged on the screwdriver bit. This patent establishes around waiting the screw of fastening through the sleeve cover through criticizing overhead cover and establishes, plays the effect of direction and protection, criticizes the head and impels the screw of screwing forward, and this scheme can prevent that the screw from bumping down, beat inclined to one side's phenomenon, nevertheless when the operation, because the screw is established by the sleeve cover, the fastening condition of operator's unable observation screw, to the screw of different models, need change the sleeve of different models, the commonality is relatively poor.
Regarding the problem 2, the industry usually adopts a piece of flannelette wrapped outside the batch head or a hard rubber protective shell formed by injection molding, but the risk of curling hands also exists, and because the batch head rotates at high speed during operation, the flannelette wrapped outside or the hard rubber protective shell can also rotate along with the batch head, and the risk of curling hands still exists.
Therefore, a bit protection device which can prevent the bit from slipping and deviating to scratch the car body or parts and prevent the hand from being curled is needed.
Disclosure of Invention
In order to solve the problems, the invention provides a batch head protection device which can prevent a vehicle body or parts from being scratched due to the skid and the deviation of a batch head and can place a hand reeling.
In order to achieve the above object, the present invention provides a batch head protection device, including:
the stabilizing mechanism comprises a stabilizing pipe sleeve and a plurality of bearings arranged in an inner cavity of the stabilizing pipe sleeve;
the protection mechanism comprises a protection pipe sleeve, a hollow guide cap and an elastic piece, wherein the hollow guide cap is sleeved at one end of the inner cavity of the protection pipe sleeve in a sliding manner, the elastic piece is arranged in the inner cavity of the protection pipe sleeve, and one end of the elastic piece is abutted against the hollow guide cap;
one end of the hollow connecting part is detachably connected with the stabilizing pipe sleeve, the other end of the hollow connecting part is detachably connected with the end, far away from the hollow guide cap, of the protective pipe sleeve, and the other end of the elastic part is abutted against the other end of the hollow connecting part;
the inner cavities of the stabilizing mechanism, the hollow connecting part and the protecting mechanism are sequentially communicated, and the communicated inner cavities form a cavity for accommodating the screwdriver head.
Preferably, the batch head protection device further comprises a shell, and the shell is sequentially sleeved on the outer sides of the stabilizing mechanism, the hollow connecting portion and the protection mechanism.
Preferably, the shell is made of silica gel or rubber.
Preferably, the plurality of bearings comprises a needle bearing and two ball bearings, the two ball bearings being arranged side by side on either side of the needle bearing.
Preferably, one end of the stabilizing pipe sleeve is provided with a first internal thread, and correspondingly, one end of the hollow connecting part is provided with a first external thread matched with the first internal thread.
Preferably, one end of the inner cavity of the protective pipe sleeve is provided with a second internal thread, and correspondingly, the other end of the hollow connecting part is provided with a second external thread matched with the second internal thread.
Preferably, a clamping table is arranged at the other end of the inner cavity of the protective pipe sleeve.
Preferably, the hollow guide cap is provided with a first elastic piece guide table, a limit boss matched with the clamping table and a protection part in sequence.
Preferably, the hollow guide cap is made of a non-metal material which is not easy to scratch a vehicle body or parts, such as nylon or hard rubber.
Preferably, the elastic member is a spring.
Preferably, a second elastic member guide table is provided at a second external thread end portion of the other end of the hollow connection portion.
The invention also provides a safe batch head, which comprises a batch head body and the batch head protection device, wherein the batch head body sequentially penetrates through the stabilizing mechanism, the hollow connecting part and the inner cavity of the protection mechanism through a plurality of bearings arranged in the stabilizing mechanism.
In an initial state, under the action of the elastic piece, one end of the hollow guide cap is ejected out of the protective pipe sleeve, the head of the bit body is hidden in the hollow guide cap, when the bit body is used, the bit body is connected with a pneumatic tool, the hollow guide cap is abutted to a screw to be fastened, at the moment, the hollow guide cap compresses the elastic piece inwards under the external acting force, so that the head of the bit body is exposed out of the hollow guide cap to perform operation, and when the external acting force disappears, the hollow guide cap is ejected out under the action of the elastic piece, so that the head of the bit body is hidden in the hollow guide cap again.
Preferably, the batch head body is a T-shaped star batch.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the invention relates to a screwdriver bit protection device, which comprises a stabilizing mechanism, a screwdriver bit protection mechanism and a control mechanism, wherein the stabilizing mechanism comprises a stabilizing pipe sleeve and a plurality of bearings arranged in an inner cavity of the stabilizing pipe sleeve; the protection mechanism comprises a protection pipe sleeve, a hollow guide cap and an elastic piece, wherein the hollow guide cap is sleeved at one end of the inner cavity of the protection pipe sleeve in a sliding manner, the elastic piece is arranged in the inner cavity of the protection pipe sleeve, and one end of the elastic piece is abutted against the hollow guide cap; the utility model discloses a safety device, including stabilizing the pipe box, including the protection pipe box, the protection pipe box is equipped with the stabilizing pipe box, the cavity connecting portion, its one end with the stabilizing pipe box can be dismantled the connection, its other end with the protection pipe box is kept away from cavity direction cap end and can be dismantled the connection, the other end of elastic component with the cavity connecting portion other end is contradicted, and when using, criticize the head through setting up in stabilizing mechanism's a plurality of bearings wear to establish in stabilizing mean, cavity connecting portion and protection mechanism chamber.
2. The safety bit comprises a bit body and the bit protection device, wherein the bit body is sequentially arranged in a stabilizing mechanism, a hollow connecting part and a protection mechanism in a penetrating manner through a plurality of bearings arranged in the stabilizing mechanism, one end of a hollow guide cap is ejected out of a protection pipe sleeve under the action of an elastic part in an initial state, the head of the bit body is hidden in the hollow guide cap, when the safety bit is used, the bit is connected with a pneumatic tool, the hollow guide cap is abutted to a screw to be fastened, at the moment, the hollow guide cap inwards compresses the elastic part under external acting force, so that the head of the bit body is exposed out of the hollow guide cap for operation, and when the external acting force disappears, the hollow guide cap is ejected out under the action of the elastic part, so that the head of the bit body is hidden in the hollow guide cap again. Therefore, in the operation process, no matter the external acting force is actively removed, or the bit slips or deflects, the head of the bit body is separated from the fastened screw, so that the external acting force disappears, the hollow guide cap is popped out under the action of the elastic piece, the head of the bit body is hidden in the hollow guide cap again, and the deflected bit head is prevented from scratching the surface of a vehicle body or a part; simultaneously stabilizing mean's setting for whole batch head protection device can not be followed and criticized the head and rotate, just the hand touches or holds between the fingers batch head protection device's shell and also can not be injured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
FIG. 1 is a schematic cross-sectional view of a bit protection device according to the present invention;
FIG. 2 is a schematic cross-sectional exploded view of a bit protection device according to the present invention;
FIG. 3 is a partial cross-sectional view of an initial state of a safety batch head according to the present invention;
FIG. 4 is a partial cross-sectional view of a safe bit operation state according to the present invention;
the reference numbers are as follows:
1. a bit protection device; 11. a stabilizing mechanism; 111. a stabilizing sleeve; 112. a needle bearing; 113. a ball bearing; 12. a protection mechanism; 121. a protective pipe sleeve; 1211. clamping a platform; 122. a hollow guide cap; 1221. a first elastic member guide table; 1222. a limiting boss; 1223. a protection part; 123. an elastic member; 13. a hollow connecting portion; 131. a second elastic member guide table; 14. a housing; 2. the batch head body.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators such as the first, second, upper, lower, left, right, front and rear … … in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The invention will be further described with reference to the following figures:
referring to fig. 1 and 2, the present invention provides a batch head protection device including:
the stabilizing mechanism 11 comprises a stabilizing pipe sleeve 111 and a plurality of bearings arranged in an inner cavity of the stabilizing pipe sleeve;
the protection mechanism 12 comprises a protection pipe sleeve 121, a hollow guide cap 122 and an elastic piece 123, wherein the hollow guide cap 122 is slidably sleeved at one end of the inner cavity of the protection pipe sleeve 121, the elastic piece 123 is arranged in the inner cavity of the protection pipe sleeve 121, and one end of the elastic piece is abutted against the hollow guide cap 122;
hollow connecting portion 13, its one end can be dismantled with stable pipe box 111 and be connected, and its other end and protection tube cover 121 keep away from cavity guide cap 122 end and can dismantle and be connected, and the other end and the 13 other ends of cavity connecting portion of elastic component 123 are contradicted, and stabilizing mean 11, cavity connecting portion 13 and protection mean 12's inner chamber communicate in proper order, and the inner chamber of intercommunication forms the cavity that holds the batch head. When using this batch of first protection device 1, wear to establish in stabilizing mean 11, cavity connecting portion 13 and protection mechanism 12 inner chamber in proper order through setting up a plurality of bearings in stabilizing mean 11 wholesale head body 2, this batch of first protection device simple structure, the assembly is easy.
As a preferred embodiment, the batch head protecting device further comprises a shell 14, and the shell 14 is sequentially sleeved outside the stabilizing mechanism 11, the hollow connecting part 13 and the protecting mechanism 12.
As a preferred embodiment, referring to fig. 1, the material of the housing 14 is silica gel or rubber, so that the housing has certain elasticity, and can be tightly sleeved on the outer side of the batch head protection device, and simultaneously prevent the operator from being scratched by burrs and the like on the outer sides of the stabilizing pipe sleeve 111, the hollow connecting portion 13 and the protecting pipe sleeve 121, and also prevent the operator from being scratched by mistakenly touching the housing 14.
As a preferred embodiment, referring to fig. 1 and 2, the bearings include a needle bearing 112 and two ball bearings 113, the two ball bearings 113 are arranged side by side on both sides of the needle bearing 112, the needle bearing 112 and the ball bearings 113 are used in combination, which not only satisfies the compact layout in the stabilizing sleeve 111 and improves the transmission efficiency, but also the needle bearing 112 and the ball bearings 113 are arranged, when in use, only the bit rotates the fastening screw, and the bit protection device 1 can not rotate along with the bit, and the hand touching or holding the shell of the bit protection device can not be injured.
As a preferred embodiment, one end of the stabilizing pipe sleeve 111 is provided with a first internal thread, and correspondingly, one end of the hollow connecting portion 13 is provided with a first external thread matched with the first internal thread, so that the detachable connection between the stabilizing pipe sleeve 111 and the hollow connecting portion 13 is realized, and the assembly and maintenance of the batch head protection device are facilitated.
As a preferred embodiment, one end of the inner cavity of the protective sleeve 121 is provided with a second internal thread, and correspondingly, the other end of the hollow connecting portion 13 is provided with a second external thread matched with the second internal thread, so that the protective sleeve 121 and the hollow connecting portion 13 can be detachably connected, and the assembly and maintenance of the batch head protective device are facilitated.
Referring to fig. 2, a retainer 1211 is provided in the other end of the inner cavity of the protective tube sleeve 121.
As a preferred embodiment, referring to fig. 2, the hollow guide cap 122 is provided with a first elastic member guide platform 1221, a limit platform 1222 engaged with the catch platform 1211, and a protection part 1223 in sequence, and the engagement of the limit platform 1222 and the catch platform 1211 is used, so that the hollow guide cap 122 does not slide out of the protection sleeve 121, and only the protection part 1223 can be exposed out of the protection sleeve 121.
In a preferred embodiment, the hollow guiding cap 122 is made of a non-metallic material, such as nylon or hard rubber, which is not prone to scratch the car body or parts.
In a preferred embodiment, the elastic member 123 is a spring for providing an elastic force to expose the protection part 1223 of the hollow guide cap 122 to the protection cap 121.
As a preferred embodiment, the second external thread end of the other end of the hollow connection part 13 is provided with the second elastic member guide stage 131, and the first elastic member guide stage 1221 and the second elastic member guide stage 131 are provided so that the elastic member 123 provided in the protective tube housing 121 provides a guide, so that it is uniformly deformed, and can provide a stable elastic force.
Referring to fig. 3 and 4, the invention further provides a safe bit, which comprises the bit protection device 1 and the bit body 2, wherein the bit body 2 is sequentially arranged in the stabilizing mechanism 11, the hollow connecting part 13 and the protection mechanism 12 in a penetrating manner through a plurality of bearings arranged in the stabilizing mechanism 11.
Referring to fig. 3, in an initial state, under the action of the elastic member 123, one end of the hollow guide cap 122 is ejected out of the protective sleeve 121, the head of the bit body 2 is hidden in the hollow guide cap 122, when in use, the bit body 2 is connected with a pneumatic tool, referring to fig. 4, the hollow guide cap 122 is pressed against a screw to be fastened, at this time, the hollow guide cap 122 compresses the elastic member 123 inwards under an external acting force, so that the head of the bit body 2 is exposed out of the hollow guide cap 122 for operation, and when the external acting force disappears, the hollow guide cap 122 is ejected out under the action of the elastic member 123, so that the head of the bit body 2 is hidden in the hollow guide cap 122 again. Therefore, in the operation process, no matter the external acting force is actively removed, or the head of the bit body 2 is separated from the fastened screw due to the fact that the bit body 2 slips and deflects, the external acting force disappears, the hollow guide cap 122 pops out under the action of the elastic piece 123, the head of the bit body 2 is hidden in the hollow guide cap 122 again, and the head of the deflected bit body 2 is prevented from scratching the surface of a vehicle body or a part; meanwhile, the stabilizing mechanism 11 is arranged, so that the whole batch head protection device 1 cannot rotate along with the batch head, and the casing 14 of the batch head protection device 1 cannot be injured even if the hand touches or holds the batch head protection device.
As a preferred embodiment, the batch head body 2 is a T-shaped star batch.
The foregoing is a detailed description of the invention, and specific examples are used herein to explain the principles and implementations of the invention, the above description being merely intended to facilitate an understanding of the principles and core concepts of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A bit protector, comprising:
the stabilizing mechanism comprises a stabilizing pipe sleeve and a plurality of bearings arranged in an inner cavity of the stabilizing pipe sleeve;
the protection mechanism comprises a protection pipe sleeve, a hollow guide cap and an elastic piece, wherein the hollow guide cap is sleeved at one end of the inner cavity of the protection pipe sleeve in a sliding manner, the elastic piece is arranged in the inner cavity of the protection pipe sleeve, and one end of the elastic piece is abutted against the hollow guide cap;
one end of the hollow connecting part is detachably connected with the stabilizing pipe sleeve, the other end of the hollow connecting part is detachably connected with the end, far away from the hollow guide cap, of the protective pipe sleeve, and the other end of the elastic part is abutted against the other end of the hollow connecting part;
the inner cavities of the stabilizing mechanism, the hollow connecting part and the protecting mechanism are sequentially communicated, and the communicated inner cavities form a cavity for accommodating the screwdriver head.
2. The bit protector as claimed in claim 1, wherein said plurality of bearings comprises a needle bearing and two ball bearings, said two ball bearings being disposed side by side on opposite sides of said needle bearing.
3. A bit protector as claimed in claim 1 or 2, characterized in that one end of the stabilizing sleeve is provided with a first internal thread and correspondingly one end of the hollow connecting part is provided with a first external thread cooperating with the first internal thread.
4. The batch head protection device according to claim 3, wherein one end of the inner cavity of the protection tube sleeve is provided with a second internal thread, and correspondingly, the other end of the hollow connecting part is provided with a second external thread matched with the second internal thread.
5. The batch head protection device according to claim 4, wherein a clamping table is arranged in the other end of the inner cavity of the protection pipe sleeve.
6. The batch head protection device according to claim 5, wherein the hollow guide cap is provided with a first elastic member guide table, a limit boss matched with the clamping table and a protection part in sequence.
7. The batch head protection device according to any one of claims 1-2 or 4-6, wherein the hollow guide cap is made of a non-metallic material which is not prone to scratch the vehicle body or parts.
8. The bit protector as claimed in claim 4, wherein the second externally threaded end portion of the other end of the hollow connecting portion is provided with a second elastic member guide table.
9. The batch head protection device according to claim 1 or 2, further comprising a housing, wherein the housing is sequentially sleeved outside the stabilizing mechanism, the hollow connecting portion and the protection mechanism.
10. A safety batch head, which is characterized by comprising a batch head body and a batch head protection device according to any one of claims 1 to 9, wherein the batch head body is sequentially arranged in the stabilizing mechanism, the hollow connecting part and the inner cavity of the protection mechanism in a penetrating way through a plurality of bearings arranged in the stabilizing mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010173586.7A CN111331546A (en) | 2020-03-13 | 2020-03-13 | Screwdriver head protection device and safe screwdriver head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010173586.7A CN111331546A (en) | 2020-03-13 | 2020-03-13 | Screwdriver head protection device and safe screwdriver head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111331546A true CN111331546A (en) | 2020-06-26 |
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ID=71176345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010173586.7A Pending CN111331546A (en) | 2020-03-13 | 2020-03-13 | Screwdriver head protection device and safe screwdriver head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111331546A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3364963A (en) * | 1964-07-08 | 1968-01-23 | Gkn Screws Fasteners Ltd | Tool for piercing and threading a workpiece |
| DE2220792C3 (en) * | 1971-05-06 | 1981-10-29 | Milwaukee Electric Tool Corp., 53005 Brookfield, Wis. | Adjustable depth stop for a portable power tool |
| CN204221690U (en) * | 2014-10-30 | 2015-03-25 | 天津市瑞浦源科技发展有限公司 | A kind of have the anti-replaceable screwdriver bit departing from protective sleeve |
| CN104889923A (en) * | 2015-05-29 | 2015-09-09 | 苏州固基电子科技有限公司 | Electric screw driver with protective effect |
| CN108128481A (en) * | 2018-01-08 | 2018-06-08 | 张雨寒 | A kind of maintenance tool of Multi-functional foldable air equipment shell |
| CN208713816U (en) * | 2018-09-07 | 2019-04-09 | 大连惠鸿达液压设备有限公司 | A kind of the turn of the screw tooling |
-
2020
- 2020-03-13 CN CN202010173586.7A patent/CN111331546A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3364963A (en) * | 1964-07-08 | 1968-01-23 | Gkn Screws Fasteners Ltd | Tool for piercing and threading a workpiece |
| DE2220792C3 (en) * | 1971-05-06 | 1981-10-29 | Milwaukee Electric Tool Corp., 53005 Brookfield, Wis. | Adjustable depth stop for a portable power tool |
| CN204221690U (en) * | 2014-10-30 | 2015-03-25 | 天津市瑞浦源科技发展有限公司 | A kind of have the anti-replaceable screwdriver bit departing from protective sleeve |
| CN104889923A (en) * | 2015-05-29 | 2015-09-09 | 苏州固基电子科技有限公司 | Electric screw driver with protective effect |
| CN108128481A (en) * | 2018-01-08 | 2018-06-08 | 张雨寒 | A kind of maintenance tool of Multi-functional foldable air equipment shell |
| CN208713816U (en) * | 2018-09-07 | 2019-04-09 | 大连惠鸿达液压设备有限公司 | A kind of the turn of the screw tooling |
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Application publication date: 20200626 |
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| RJ01 | Rejection of invention patent application after publication |