CN110170950B - Lock fitting convenient for replacing screwdriver bit - Google Patents
Lock fitting convenient for replacing screwdriver bit Download PDFInfo
- Publication number
- CN110170950B CN110170950B CN201910596981.3A CN201910596981A CN110170950B CN 110170950 B CN110170950 B CN 110170950B CN 201910596981 A CN201910596981 A CN 201910596981A CN 110170950 B CN110170950 B CN 110170950B
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- section
- locking
- sleeve
- suction nozzle
- bottom end
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- 230000005540 biological transmission Effects 0.000 claims abstract description 41
- 238000002955 isolation Methods 0.000 claims abstract description 17
- 125000006850 spacer group Chemical group 0.000 claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000001179 sorption measurement Methods 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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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
- B25B15/00—Screwdrivers
-
- 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
Abstract
The invention discloses a locking piece convenient for replacing a screwdriver bit, which comprises a linear bearing and a spacer sleeve penetrating through the linear bearing, wherein the top end of the spacer sleeve is connected with a limiting sleeve, the bottom end of the spacer sleeve is connected with a locking connecting frame, the bottom end of the locking connecting frame is connected with a fixed cylinder, and the locking connecting frame is provided with an accommodating space penetrating through two sides of the locking connecting frame; also comprises an isolation elastic piece; the device also comprises a transmission column; the bottom end part of the transmission column is detachably connected with a screwdriver head through an elastic locking assembly; the fixed cylinder is also internally provided with a suction nozzle component positioned at the periphery of the screwdriver head, and the bottom end of the suction nozzle component penetrates through the bottom end of the fixed cylinder. The invention can effectively solve the problems of large occupied volume and high production cost of the multi-lock pair head, and simultaneously, the quick-dismantling design of the screwdriver head can assist in improving the production efficiency.
Description
Technical Field
The invention relates to the technical field of screw machines, in particular to a locking piece convenient for replacing a screwdriver head.
Background
At present, an automatic screw machine is mostly used for locking screws, and the automatic screw machine is mostly provided with a mechanical arm and a locking structure connected to the output end of the mechanical arm, so that the locking structure can be moved in multiple dimensions by starting the mechanical arm. In order to improve the production efficiency, the locking structure is provided with a plurality of groups of locking heads, but the following problems still exist: 1. in the locking structure, each group of locking heads comprises a driving motor and a screwdriver connected to the output end of the driving motor, and the driving motor is started to rotate the corresponding screwdriver to complete the locking work. Because the number of the driving motors and the number of the screwdrivers are correspondingly arranged, namely a plurality of the screwdrivers are provided with a plurality of the driving motors, the production cost is high, the occupied volume is large, and the problem of line winding is easily caused; 2. the screwdriver can achieve the effect of adsorption by installing the magnetic part, so that the screwdriver can only be used for adsorbing screws made of metal materials, and the problem of adsorption failure can occur for screws made of plastics and other nonmetallic materials; 3. different types of screw heads can be replaced for different types of screws, meanwhile, the screw heads belong to vulnerable parts, and the screw heads are also replaced regularly after locking work is carried out on the screw heads for a long time, but in the existing screw driver, the screw heads cannot be quickly assembled and disassembled, so that production efficiency is affected.
Disclosure of Invention
The invention aims to overcome the problems in the prior art, and provides a locking piece which is convenient for replacing a screwdriver bit, so that the problems of large occupied volume and high production cost of multiple locking bits can be effectively solved, and meanwhile, the production efficiency can be assisted to be improved by the quick-dismantling design of the screwdriver bit.
The aim of the invention is mainly realized by the following technical scheme:
the locking piece convenient for replacing the screwdriver head comprises a linear bearing and a spacer sleeve penetrating through the linear bearing, wherein the top end of the spacer sleeve is connected with a limiting sleeve, the bottom end of the spacer sleeve is connected with a locking connecting frame, the bottom end of the locking connecting frame is connected with a fixed cylinder, and the locking connecting frame is provided with an accommodating space penetrating through two sides of the locking connecting frame;
still include keeping apart the elastic component, keep apart the upper and lower both ends of elastic component and butt respectively at stop collar and linear bearing for: the limiting sleeve is positioned at a high position and is positioned above the linear bearing;
the transmission column is positioned in the isolation sleeve and can rotate relative to the isolation sleeve, the top end of the transmission column penetrates through the top end of the limit sleeve, the section of the transmission column protruding outwards from the limit sleeve is in a non-circular shape, and the bottom end of the transmission column penetrates through the top end of the locking connecting frame and is positioned in the accommodating space;
the bottom portion of drive post is connected with the bottle opener head through elasticity locking subassembly detachably, elasticity locking subassembly includes locking sleeve and cover that is connected with the drive post bottom establish on locking sleeve and can lock sleeve reciprocating's chucking sleeve relatively, locking sleeve's bottom portion has the connection blind hole, set up the ball through-hole with connecting the blind hole intercommunication on locking sleeve bottom portion's the lateral wall, roll in the ball through-hole and be provided with the ball, the chucking sleeve has the chucking section and links up and the release section that the internal diameter is greater than the chucking section with the chucking section, when the chucking section just faces the ball through-hole, the chucking section can act on the ball and make the inboard end of ball be located the connection blind hole, when the release section just faces the ball through-hole, the ball can break away from the region that the connection blind hole surrounded, elasticity locking subassembly still includes locking elastic support piece and the anticreep piece of setting on locking sleeve, locking elastic support piece acts on the chucking sleeve and makes: the clamping sleeve is abutted on the anti-falling piece, and the clamping section can be opposite to the ball through hole;
the screwdriver head is provided with a top end part which can be placed in the connecting blind hole, the top end part is also provided with a locking groove which can be placed in fit with the inner side ends of the two balls, and when the inner side ends of the balls are placed in the locking groove, the bottom end of the screwdriver head can penetrate through the bottom end of the fixed cylinder;
the fixed cylinder is also internally provided with a suction nozzle component positioned at the periphery of the screwdriver head, and the bottom end of the suction nozzle component penetrates through the bottom end of the fixed cylinder.
In the invention, the suction nozzle component is communicated with the gas generator, and the suction nozzle component is arranged for adsorbing the screw, so that the screw is convenient to position and move. The isolation sleeve is used for isolating the transmission column, so that the operation of the transmission column is prevented from being influenced by the outside. The linear bearing is connected to the rotating frame, the rotating frame is rotationally arranged on the mounting frame, the driving motor is further arranged on the mounting frame, the output end of the driving motor is connected with the linkage connecting sleeve which can be sleeved on the transmission column and can drive the transmission column to synchronously rotate, and the top end part of the transmission column is in a non-circular arrangement, so that the linkage connecting sleeve is convenient to drive the transmission column to synchronously rotate. Under the supporting action of the isolation elastic piece, the limit sleeve drives the isolation sleeve, the locking connecting frame and the fixing cylinder to be located at a high position.
When the screw tool is required to be locked, the rotating frame is rotated to move the screw tool to the position right below the driving motor, and the driving motor is moved downwards, so that the linkage connecting sleeve can be sleeved at the top end part of the transmission column, and in the process, the isolation elastic piece can buffer the downward pressure, so that the mutual abrasion between the transmission column and the linkage connecting sleeve is avoided. At the moment, the driving motor is started, the transmission column rotates relative to the isolation sleeve and the limit sleeve, and further drives the screwdriver bit to rotate, so that screw locking work can be performed.
When the screwdriver head needs to be replaced, the clamping sleeve is moved from any one of two sides of the locking connecting frame, so that the clamping sleeve can compress the elastic supporting piece until the loose section can be opposite to the ball through hole, the ball abutting on the locking groove can exit the area of the connecting blind hole, the existing screwdriver head can be taken down, the new screwdriver head is assembled on the connecting blind hole, the clamping sleeve is reset again, and under the action of the elastic supporting piece, the clamping sleeve is opposite to the ball through hole again, so that the ball can be abutted on the locking groove. Thus, the quick assembly and disassembly work of the screwdriver head is realized.
Further, the anti-falling piece comprises an upper limiting ring positioned above the clamping sleeve and a lower limiting ring positioned below the clamping sleeve.
The clamping sleeve is sequentially connected with a limiting section, the clamping section and the loosening section from top to bottom, and the inner diameter of the limiting section is larger than that of the clamping section;
the two ends of the locking elastic support piece are respectively connected with the bottom end of the upper limiting ring and the top end of the clamping section.
Further, the transmission column is connected with the locking sleeve through a coupler.
Further, a hollow suction nozzle movable cavity is arranged in the fixed cylinder, and a lower through hole communicated with the suction nozzle movable cavity is formed in the bottom end of the fixed cylinder;
a limiting ring positioned at the periphery of the screwdriver head is also arranged in the suction nozzle movable cavity;
the suction nozzle assembly comprises a suction nozzle elastic piece, a connecting pipe capable of moving up and down relative to the screwdriver head and a suction nozzle detachably connected with the bottom end of the connecting pipe, wherein the connecting pipe is provided with an abutting section and a connecting section connected with the abutting section, the outer diameter of the abutting section is larger than the inner diameter of the limiting ring, and the upper end and the lower end of the suction nozzle elastic piece respectively act on the cavity wall and the abutting section of the suction nozzle movable cavity, so that the suction nozzle is convenient to use, and the suction nozzle assembly is convenient to use and convenient to use: the connecting section is abutted on the limiting ring, the bottom end of the connecting section passes through the lower through hole, and the bottom end of the suction nozzle is positioned below the bottom end of the screwdriver head;
the suction nozzle is provided with a connecting port communicated with the inner cavity of the suction nozzle.
In the invention, the connecting port is used for being communicated with the gas generator, and the bottom end of the screwdriver head penetrates through the lower port. When the screw is used, the gas generator is started to form negative pressure in the suction nozzle, and at the moment, the screw can be adsorbed to move the screw to a specific position. When the screw is absorbed, the elastic piece of the suction nozzle is arranged, so that the downward pressure can be buffered, and the screw is prevented from being worn; when the screw is locked, the suction nozzle elastic piece is arranged, so that the suction nozzle can move upwards to give way to ensure that the screwdriver head can directly act on the screw.
In order to stably realize detachable connection between the suction nozzle and the connecting section, further, an annular groove is formed in the outer annular surface of the bottom end part of the connecting section, and an annular protrusion in threaded fit with the annular groove is arranged on the inner annular surface of the top end part of the suction nozzle.
In order to improve the stability of the up-and-down movement of the connecting pipe, further, the top end of the abutting section is provided with an elastic piece limiting groove;
the bottom of the suction nozzle elastic piece acts on the bottom of the elastic piece limiting groove.
Further, the locking groove is annularly arranged on the screwdriver head;
the top end of the screwdriver head extends upwards to form a linkage connecting section, and the section of the linkage connecting section is non-circular;
the inner wall of the connecting blind hole is provided with a linkage connecting bulge which can be matched with the linkage connecting section in a imbedding way.
In the invention, the annular arrangement of the locking groove can facilitate the abutting connection between the ball and the locking groove. The section of the linkage connecting section is non-circular, so that linkage connection between the screwdriver head and the connecting blind hole can be ensured.
Further, the connecting section is arranged on the periphery of the screwdriver bit through a screwdriver bit bearing.
Therefore, when the screwdriver head rotates, the stability of the connecting section can be effectively prevented from being influenced.
Further, the limit sleeve and the fixed cylinder are connected to the periphery of the transmission column through a transmission column bearing.
Therefore, when the transmission column rotates, the influence on the stability of the limit sleeve can be effectively avoided.
The invention has the following beneficial effects:
1. when the locking device is applied, the locking head can be provided with a plurality of locking pieces and a set of driving motor, and the screw cutters are sequentially moved to the output end of the driving motor in a rotating mode, so that the screw cutters can be driven one by one to carry out locking work, and the problems of large occupied volume and high production cost can be effectively solved.
2. In the invention, the output end of the matched driving motor is connected with the linkage connecting sleeve which can be connected with the transmission column, and the top end part of the transmission column is arranged in a non-circular shape, so that the transmission column can rotate in linkage with the linkage connecting sleeve. When the device is applied, the driving motor is required to be moved downwards, so that the linkage connecting sleeve is in contact connection with the transmission column, and in the process, the isolation elastic piece can buffer the downward pressure, so that the mutual abrasion between the transmission column and the linkage connecting sleeve is avoided.
3. According to the invention, the screwdriver head can be conveniently and rapidly assembled and disassembled by arranging the clamping sleeve, the locking sleeve and the elastic locking assembly, so that the production efficiency can be greatly improved.
4. The screw is transferred through the adsorption component, so that the screw can be suitable for screws made of various materials. When the screw is absorbed, the elastic piece of the suction nozzle is arranged, so that the downward pressure can be buffered, and the screw is prevented from being worn; when the screw is locked, the suction nozzle elastic piece is arranged, so that the suction nozzle can move upwards to give way to ensure that the screwdriver head can directly act on the screw.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings that are required for describing the embodiments of the present invention will be briefly described. It is apparent that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained from the following drawings without inventive labor for those skilled in the art.
FIG. 1 is a cross-sectional view of one embodiment of a lock assembly for facilitating the replacement of a bit according to the present invention;
fig. 2 is a schematic structural view of an embodiment of a locking member for facilitating the replacement of a screwdriver bit according to the present invention.
Wherein, the spare part names that the reference numerals correspond to are as follows: 1. the device comprises an isolation sleeve, 2, a limit sleeve, 3, a fixed cylinder, 4, a linear bearing, 5, an isolation elastic piece, 6, a transmission column, 7, a screwdriver head, 8, a suction nozzle movable cavity, 9, a lower through hole, 10, a limit ring, 11, a suction nozzle elastic piece, 12, a connecting pipe, 13, a suction nozzle, 14, an abutting section, 15, a connecting section, 16, an annular bulge, 17, an annular groove, 18, an elastic piece limit groove, 19, a linkage connecting section, 20, a locking sleeve, 21, a screwdriver head bearing, 22, a transmission column bearing, 23, a coupler, 24, a locking connecting frame, 25, a clamping sleeve, 26, an upper limit ring, 27, a connecting blind hole, 28, a ball through hole, 29, a ball, 30, a clamping section, 31, a releasing section, 32, a locking groove, 33, a locking elastic support piece, 34, a limit section, 35, an accommodating space, 36, a connecting through hole, 37, a linkage connecting bulge, 38 and a lower limit ring.
Detailed Description
In order to enable those skilled in the art to better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the embodiments described below are only some, but not all, of the embodiments of the present invention. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are within the scope of the present invention based on the embodiments described herein.
Example 1
As shown in fig. 1-2, a locking piece for conveniently replacing a screwdriver bit comprises a linear bearing 4 and a spacer sleeve 1 penetrating through the linear bearing 4, wherein the top end of the spacer sleeve 1 is connected with a limiting sleeve 2, the bottom end of the spacer sleeve 1 is connected with a locking connecting frame 24, the bottom end of the locking connecting frame 24 is connected with a fixed cylinder 3, and the locking connecting frame 24 is provided with an accommodating space 35 penetrating through two sides of the locking connecting frame 24;
still include keep apart elastic component 5, keep apart elastic component 5 upper and lower both ends butt respectively at stop collar 2 and linear bearing 4 for: the limit sleeve 2 is positioned at a high position, and the limit sleeve 2 is positioned above the linear bearing 4;
the device also comprises a transmission column 6 which is positioned in the isolation sleeve 1 and can rotate relative to the isolation sleeve 1, wherein the top end of the transmission column 6 penetrates through the top end of the limit sleeve 2, the section of the transmission column 6 protruding outwards from the limit sleeve 2 is in a non-circular shape, and the bottom end of the transmission column 6 penetrates through the top end of the locking connecting frame 24 and is positioned in the accommodating space 35;
the bottom of drive post 6 is detachably connected with bottle opener head 7 through the elasticity locking subassembly, the elasticity locking subassembly includes locking sleeve 20 and cover that is connected with drive post 6 bottom establish on locking sleeve 20 and can lock sleeve 20 relatively and reciprocate's chucking sleeve 25, locking sleeve 20's bottom has the connection blind hole 27, offered the ball through-hole 28 with connecting blind hole 27 intercommunication on locking sleeve 20 bottom's the lateral wall, roll in the ball through-hole 28 and be provided with ball 29, chucking sleeve 25 has chucking section 30 and with chucking section 30 links up and the inside diameter is greater than chucking section 30 loosen section 31, when chucking section 30 just is to ball through-hole 28, chucking section 30 can act on ball 29 makes ball 29's inboard end be located the connection blind hole 27, when loosening section 31 just is to ball through-hole 28, ball 29 can break away from the region that connecting blind hole 27 surrounds, the elasticity locking subassembly still includes locking elastic support piece 33 and the anticreep piece that sets up on locking sleeve 20, locking elastic support piece 33 acts on chucking sleeve 25 makes: the clamping sleeve 25 is abutted against the anti-falling piece, and the clamping section 30 can be opposite to the ball through hole 28;
the screwdriver head 7 is provided with a top end part which can be placed in the connecting blind hole 27, the top end part is also provided with a locking groove 32 which can be placed in fit with the inner side ends of the two balls 29, and when the inner side ends of the balls 29 are placed in the locking groove 32, the bottom end of the screwdriver head 7 can penetrate through the bottom end of the fixed cylinder 3;
the fixed cylinder 3 is also internally provided with a suction nozzle component positioned at the periphery of the screwdriver head 7, and the bottom end of the suction nozzle component penetrates through the bottom end of the fixed cylinder 3.
In this embodiment, the isolation elastic member 5 is a compression spring, and the section of the transmission post 6 protruding outside the stop collar 2 may be hexagonal. The isolation sleeve 1 and the limit sleeve 2 can be fixed by screws. Ball through holes 28 can be formed in both side walls of the bottom end portion of the locking sleeve 20.
Example 2
This embodiment is further defined on the basis of embodiment 1 as follows: the anti-drop member comprises an upper stop collar 26 located above the clamping sleeve 25 and a lower stop collar 38 located below the clamping sleeve 25.
The clamping sleeve 25 is sequentially connected with a limiting section 34, the clamping section 30 and the loosening section 31 from top to bottom, and the inner diameter of the limiting section 34 is larger than the inner diameter of the clamping section 30;
the two ends of the locking elastic support member 33 are respectively connected with the bottom end of the upper limit ring 26 and the top end of the clamping section 30.
Example 3
This embodiment is further defined on the basis of embodiment 1 as follows: the drive post 6 is connected to the locking sleeve 20 by a coupling 23.
Example 4
This embodiment is further defined on the basis of embodiment 1 as follows: a hollow suction nozzle movable cavity 8 is arranged in the fixed cylinder 3, and a lower through hole 9 communicated with the suction nozzle movable cavity 8 is formed at the bottom end of the fixed cylinder 3;
a limiting ring 10 positioned at the periphery of the screwdriver head 7 is also arranged in the suction nozzle movable cavity 8;
the suction nozzle assembly comprises a suction nozzle elastic piece 11, a connecting pipe 12 capable of moving up and down relative to the screwdriver head 7 and a suction nozzle 13 detachably connected with the bottom end of the connecting pipe 12, wherein the connecting pipe 12 is provided with an abutting section 14 and a connecting section 15 connected with the abutting section 14, the outer diameter of the abutting section 14 is larger than the inner diameter of the limiting ring 10, and the upper end and the lower end of the suction nozzle elastic piece 11 respectively act on the cavity wall of the suction nozzle movable cavity 8 and the abutting section 14, so that: the connecting section 15 is abutted on the limiting ring 10, the bottom end of the connecting section 15 passes through the lower through hole 9, and the bottom end of the suction nozzle 13 is positioned below the bottom end of the screwdriver bit 7;
the suction nozzle 13 is provided with a connecting port 36 communicated with the inner cavity.
Preferably, the outer annular surface of the bottom end of the connecting section 15 is provided with an annular groove 17, and the inner annular surface of the top end of the suction nozzle 13 is provided with an annular protrusion 16 in threaded engagement with the annular groove 17.
Preferably, the top end of the abutting section 14 is provided with an elastic member limiting groove 18;
the bottom end of the suction nozzle elastic piece 11 acts on the bottom of the elastic piece limiting groove 18.
The nozzle elastic member 11 may be a compression spring.
Preferably, the connection section 15 is provided at the periphery of the driver bit 7 by a driver bit bearing 21.
The screwdriver bit bearing 21 can be a deep groove ball bearing.
Example 5
This embodiment is further defined on the basis of embodiment 1 as follows: the locking groove 32 is annularly arranged on the screwdriver bit 7;
the top end of the screwdriver bit 7 extends upwards to form a linkage connecting section 19, and the section of the linkage connecting section 19 is non-circular;
the inner wall of the connecting blind hole 27 is provided with a linkage connecting protrusion 37 which can be matched with the linkage connecting section 19 in a put-in way.
In this embodiment, two sides of the linking-connection section 19 may be planar, and two sides of the inner wall of the connecting blind hole 27 are provided with linking-connection protrusions 37 capable of contacting with the linking-connection section 19.
Example 6
This embodiment is further defined on the basis of embodiment 1 as follows: the limiting sleeve 2 and the fixed cylinder 3 are connected to the periphery of the transmission column 6 through a transmission column bearing 22.
The transmission column bearing 22 can be a deep groove ball bearing.
The foregoing is a further detailed description of the invention in connection with specific preferred embodiments, and it is not intended that the invention be limited to these descriptions. Other embodiments of the invention, which are apparent to those skilled in the art to which the invention pertains without departing from its technical scope, shall be covered by the protection scope of the invention.
Claims (8)
1. Locking piece convenient to change bottle opener head, its characterized in that: the device comprises a linear bearing (4) and a spacer bush (1) penetrating through the linear bearing (4), wherein the top end of the spacer bush (1) is connected with a limit sleeve (2), the bottom end of the spacer bush (1) is connected with a locking connecting frame (24), the bottom end of the locking connecting frame (24) is connected with a fixed cylinder (3), and the locking connecting frame (24) is provided with an accommodating space (35) penetrating through two sides of the locking connecting frame (24);
still include keep apart elastic component (5), keep apart upper and lower both ends of elastic component (5) butt respectively at stop collar (2) and linear bearing (4) for: the limiting sleeve (2) is positioned at a high position, and the limiting sleeve (2) is positioned above the linear bearing (4);
the device also comprises a transmission column (6) which is positioned in the isolation sleeve (1) and can rotate relative to the isolation sleeve (1), wherein the top end of the transmission column (6) penetrates through the top end of the limit sleeve (2), the section of the transmission column (6) protruding outwards from the limit sleeve (2) is in a non-circular shape, and the bottom end of the transmission column (6) penetrates through the top end of the locking connecting frame (24) and is positioned in the accommodating space (35);
the bottom portion of drive post (6) is connected with bottle opener head (7) through elasticity locking subassembly detachably, elasticity locking subassembly includes locking sleeve (20) and cover of being connected with drive post (6) bottom are established on locking sleeve (20) and can lock sleeve (20) relatively chucking sleeve (25) that reciprocates, the bottom portion of locking sleeve (20) has connecting blind hole (27), offered ball through-hole (28) with connecting blind hole (27) intercommunication on the lateral wall of locking sleeve (20) bottom portion, roll in ball through-hole (28) and be provided with ball (29), chucking sleeve (25) have chucking section (30) and with chucking section (30) link up and the internal diameter is greater than chucking section (30) loosen section (31), when chucking section (30) just are to ball through-hole (28), chucking section (30) can act on ball (29) and make the inboard end of ball (29) be located connecting blind hole (27), when loosening section (31) just is to ball through-hole (28), the region that ball (29) can break away from blind hole (27) and surround, elasticity support piece (33) are including still making elastic support piece (33) and locking piece (20) setting up and make locking piece (33) and locking piece elastic support piece (25): the clamping sleeve (25) is abutted against the anti-falling piece, and the clamping section (30) can be opposite to the ball through hole (28);
the screwdriver head (7) is provided with a top end part which can be placed in the connecting blind hole (27), the top end part is also provided with a locking groove (32) which can be placed in fit with the inner side ends of the two balls (29), and when the inner side ends of the balls (29) are placed in the locking groove (32), the bottom end of the screwdriver head (7) can penetrate through the bottom end of the fixed cylinder (3);
a suction nozzle assembly positioned at the periphery of the screwdriver head (7) is further arranged in the fixed cylinder (3), and the bottom end of the suction nozzle assembly penetrates through the bottom end of the fixed cylinder (3);
the transmission column (6) is connected with the locking sleeve (20) through a coupler (23);
a hollow suction nozzle movable cavity (8) is arranged in the fixed cylinder (3), and a lower through hole (9) communicated with the suction nozzle movable cavity (8) is formed in the bottom end of the fixed cylinder (3);
a limiting ring (10) positioned at the periphery of the screwdriver head (7) is also arranged in the suction nozzle movable cavity (8); the suction nozzle assembly comprises a suction nozzle elastic piece (11), a connecting pipe (12) capable of moving up and down relative to the screw driver head (7) and a suction nozzle (13) detachably connected with the bottom end of the connecting pipe (12), wherein the connecting pipe (12) is provided with an abutting section (14) and a connecting section (15) connected with the abutting section (14), the outer diameter of the abutting section (14) is larger than the inner diameter of the limiting ring (10), and the upper end and the lower end of the suction nozzle elastic piece (11) respectively act on the cavity wall and the abutting section (14) of the suction nozzle movable cavity (8) to enable the suction nozzle to move in a fixed mode: the connecting section (15) is abutted on the limiting ring (10), the bottom end of the connecting section (15) passes through the lower through hole (9), and the bottom end of the suction nozzle (13) is positioned below the bottom end of the screwdriver head (7);
the suction nozzle (13) is provided with a connecting port (36) communicated with the inner cavity of the suction nozzle.
2. The locking piece for facilitating the replacement of a screwdriver bit according to claim 1, wherein: the anti-falling piece comprises an upper limiting ring (26) positioned above the clamping sleeve (25) and a lower limiting ring (38) positioned below the clamping sleeve (25).
3. The lock for facilitating the replacement of a driver bit according to claim 2, wherein: the clamping sleeve (25) is sequentially connected with a limiting section (34), the clamping section (30) and the loosening section (31) from top to bottom, and the inner diameter of the limiting section (34) is larger than the inner diameter of the clamping section (30);
the two ends of the locking elastic support piece (33) are respectively connected with the bottom end of the upper limiting ring (26) and the top end of the clamping section (30).
4. The locking piece for facilitating the replacement of a screwdriver bit according to claim 1, wherein: the outer annular surface of the bottom end part of the connecting section (15) is provided with an annular groove (17), and the inner annular surface of the top end part of the suction nozzle (13) is provided with an annular protrusion (16) in threaded fit with the annular groove (17).
5. The locking piece for facilitating the replacement of a screwdriver bit according to claim 1, wherein: an elastic piece limiting groove (18) is formed in the top end of the abutting section (14);
the bottom end of the suction nozzle elastic piece (11) acts on the bottom of the elastic piece limiting groove (18).
6. The locking piece for facilitating the replacement of a screwdriver bit according to claim 1, wherein: the connecting section (15) is arranged on the periphery of the screwdriver bit (7) through a screwdriver bit bearing (21).
7. The locking piece for facilitating the replacement of a screwdriver bit according to claim 1, wherein: the locking groove (32) is annularly arranged on the screwdriver head (7);
the top end of the screwdriver head (7) extends upwards to form a linkage connecting section (19), and the section of the linkage connecting section (19) is non-circular;
the inner wall of the connecting blind hole (27) is provided with a linkage connecting protrusion (37) which can be matched with the linkage connecting section (19).
8. The locking piece for facilitating the replacement of a screwdriver bit according to claim 1, wherein: the limiting sleeve (2) and the fixed cylinder (3) are connected to the periphery of the transmission column (6) through a transmission column bearing (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910596981.3A CN110170950B (en) | 2019-07-02 | 2019-07-02 | Lock fitting convenient for replacing screwdriver bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910596981.3A CN110170950B (en) | 2019-07-02 | 2019-07-02 | Lock fitting convenient for replacing screwdriver bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110170950A CN110170950A (en) | 2019-08-27 |
| CN110170950B true CN110170950B (en) | 2024-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910596981.3A Active CN110170950B (en) | 2019-07-02 | 2019-07-02 | Lock fitting convenient for replacing screwdriver bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110170950B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN110170950A (en) | 2019-08-27 |
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