CN107553385B - Screw clamp holder - Google Patents
Screw clamp holder Download PDFInfo
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- CN107553385B CN107553385B CN201710968845.3A CN201710968845A CN107553385B CN 107553385 B CN107553385 B CN 107553385B CN 201710968845 A CN201710968845 A CN 201710968845A CN 107553385 B CN107553385 B CN 107553385B
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- base sleeve
- sliding sleeve
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Abstract
The invention discloses a screw clamp, which comprises a base sleeve and a sliding sleeve coaxially sleeved outside the base sleeve, wherein at least three clamping jaws are arranged in the circumferential direction of the head of the base sleeve, inclined grooves matched with the clamping jaws are formed in the sliding sleeve, and the at least three clamping jaws can rotate in a small range through pins so as to be gathered or dispersed to clamp or release screws. The rear end of the base sleeve is sleeved with a spring, and the spring can enable the sliding sleeve pushed backwards to automatically reset, so that the screw is automatically clamped. The axial of the base sleeve is provided with an inner hexagonal through hole for inserting the batch head. After the invention is adopted, the bit and the screw completely work in an axial force transmission mode, the phenomena of deviation and slippage can not occur any more, and the integrated work of drilling, tapping and clamping can be ideally completed; the operation time is greatly shortened, and the working efficiency is obviously improved; and the screwdriver head can not be subjected to additional abrasion caused by the phenomena of deviation and slippage, the service life is prolonged, correspondingly, the failure rate of the screwdriver and the electric drill is reduced, and the service life of vulnerable parts and appliances is prolonged.
Description
Technical Field
The invention relates to a screw positioning device, in particular to a screw clamp.
Background
The self-drilling and self-tapping screw is a fastener which can firmly connect two or more parts, generally metal or non-metal parts, and the bottom part, generally metal parts, and can be quickly and simply disassembled. The drilling, tapping, screwing and clamping are integrated into a whole, and the drilling, tapping, screwing and clamping are finished at one time. Due to the advantages of simple operation, high efficiency and low cost, the method is widely applied to the industries of construction, decoration, light steel structure, industrial product production and the like. Self-drilling and tapping screws are classified into two types: one is an outer hexagonal self-drilling self-tapping screw hereinafter referred to as a hexagonal nail, which is screwed in and clamped, and the head of the screw protrudes out of the surface of a part; the other type is a cross countersunk self-drilling self-tapping screw, which is hereinafter referred to as a cross nail, after the cross countersunk self-drilling self-tapping screw is screwed and clamped, the head of the screw sinks to the surface of a part or below the part, and the top of the head of the screw is flush with the surface of a workpiece.
In terms of operability, the hexagonal nail is restrained by the hexagon socket head, the circumferential end face of the hexagon socket head is in circumferential contact with the circumferential face of the pan head of the hexagonal nail, and the contact area is large, so that the hexagonal nail has good stability in operation, namely the axis of the hexagon socket head is easy to coincide with the axis of the hexagonal nail, and the hexagonal nail is not easy to deflect during operation, so that the hexagonal nail can be stably loaded into a workpiece. The cross nail is not so, because the contact of the cross batch head and the cross notch of the cross nail basically belongs to point contact, the contact area is much smaller than that of the hexagon head, and the axial lead of the cross magnetic batch head is very easy to be inclined with the axial lead of the cross nail to form a certain included angle at the initial stage of operation due to larger operation force, so that the phenomena of deviation, slippage and the like of the batch head are very easy to occur. And the larger the force is, the more serious the phenomena of deviation and slippage are.
Disclosure of Invention
The invention provides a screw clamp which solves the problems of deviation, slippage and the like between a screwdriver head and a screw and improves the efficiency of the integrated work of drilling, tapping and clamping the screw.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a screw clamp, characterized by: the sliding sleeve can slide along the axial direction of the base sleeve; at least three claw grooves are uniformly formed in the circumferential direction of the head of the base sleeve, and claws are arranged in the claw grooves; the middle part of the claw is provided with a pin hole, and a pin penetrates through the pin hole to connect the claw into the claw groove; the front parts of the clamping jaws extend outwards in an inclined mode, the front end parts of the clamping jaws are provided with clamping jaw heads extending inwards in an inclined mode, and the rear parts of the clamping jaws also extend outwards in an inclined mode; at least three claws can rotate through the pins to gather or disperse to clamp or release the screws; the sliding sleeve is provided with a chute matched with the sliding sleeve at a position corresponding to the rear part of the jaw; the sliding sleeve is also provided with a radial sliding pin; the head of the base sleeve is provided with a sliding groove for the sliding pin to slide along the axial direction; the axial direction of the base sleeve is provided with an inner hexagonal through hole for inserting the screwdriver head; wherein; the middle part of the sliding sleeve protrudes inwards in the annular direction to form a thrust disc; a spring is sleeved at the tail of the base sleeve, one end of the spring is propped against the thrust disc, and the other end of the spring is propped against a detachable spring baffle disc at the tail end of the base sleeve; the base sleeve on one side of the thrust disc, which is close to the clamping jaw, protrudes outwards to form a limiting disc.
A stabilizing sleeve is arranged outside the sliding sleeve; the sliding sleeve is arranged between the head of the base sleeve and the head of the stabilizing sleeve; the end part of the head part of the stabilizing sleeve protrudes inwards to form a thrust disc for synchronously driving the sliding sleeve to move backwards; the middle part inside the stabilizing sleeve is detachably connected with an annular thrust disc; the tail part of the base sleeve is sleeved with a spring, one end of the spring is propped against the thrust disc, and the other end of the spring is propped against a detachable spring blocking disc at the tail end of the base sleeve; a bidirectional thrust bearing is sleeved between the sliding sleeve and the thrust disc; the base sleeve on one side of the bidirectional thrust bearing, which is close to the clamping jaw, protrudes outwards to form a limiting disc.
The thrust disc is in threaded connection with the handle stabilizing sleeve.
The end part of the head part of the stabilizing sleeve is detachably connected with an end cover in a threaded manner, the end cover protrudes inwards in the annular direction to form a thrust plate for synchronously driving the sliding sleeve to move backwards, and a spring gasket is arranged between the spring and the spring baffle plate.
The diameter of the tail part of the stabilizing sleeve is smaller than that of the head part, and an annular thrust disc is formed at the middle connecting part of the stabilizing sleeve; a bidirectional thrust bearing is sleeved between the sliding sleeve and the thrust disc; the tail part of the base sleeve is sleeved with a spring; one end of the spring is propped against the bidirectional thrust bearing, and the other end of the spring is propped against a spring baffle disc formed by the circumferential outward protrusion of the tail part of the base sleeve.
The tail end of the stabilizing sleeve protrudes inwards in the annular direction to form a dust shielding disc.
The head and the tail of the base sleeve are of split structures.
The head and the tail of the base sleeve are connected through threads.
Compared with the prior art, the invention has the beneficial effects that: the screwdriver head and the screw completely work in an axial force transmission mode, so that the phenomena of deviation and slippage can be avoided, and the integrated work of drilling, tapping and clamping can be ideally completed; the operation time is greatly shortened, and the working efficiency is obviously improved; and the screwdriver head can not be subjected to additional abrasion caused by the phenomena of deviation and slippage, the service life is prolonged, correspondingly, the failure rate of the screwdriver and the electric drill is reduced, the service life of a wearing part and an appliance is prolonged, the utilization rate of the screw is improved, and the energy conservation and consumption reduction are facilitated.
Drawings
FIG. 1 is a schematic structural diagram of a holder according to a first embodiment of the present invention;
FIG. 2 is a left side view of the structure of FIG. 1;
FIG. 3 is a schematic structural diagram of a clamper according to a second embodiment of the invention;
FIG. 4 is a left side view of the structure of FIG. 3;
FIG. 5 is a schematic view of the connection relationship between the bit and the screw when the clamp according to the second embodiment of the present invention is in use;
FIG. 6 is a schematic structural diagram of a clamp according to a third embodiment of the present invention;
fig. 7 is a left side view of the structure of fig. 6.
Detailed Description
The embodiments of the present invention will be further explained with reference to the drawings, wherein the reference numerals are defined as follows: 1-base sleeve, 2-sliding sleeve, 3-claw, 4-sliding pin, 5-thrust disc, 6-spring, 7-spring baffle disc, 8-limiting disc, 9-stabilizing sleeve, 10-bidirectional thrust bearing, 11-spring gasket, 12-end cover, 13-cross bit and 14-screw.
The first embodiment is as follows:
as shown in fig. 1-2, the present embodiment includes a base sleeve 1 and a sliding sleeve 2 coaxially sleeved outside the base sleeve 1.
The head circumferencial direction of base cover 1 evenly is equipped with and is no less than three claw groove, and claw 3 is connected with through the round pin in the claw groove, thereby it can gather together or disperse with the centre gripping or release the screw through round pin small-amplitude rotation to be no less than three claw 3. The actions of the at least three clamping jaws 3 are synchronous, and automatic centering can be realized.
The middle part of the claw 3 is provided with a pin hole, and a pin passes through the pin hole to connect the claw 3 into the claw groove. The front part of the clamping jaw 3 extends outwards in an inclined way, and the front end part of the clamping jaw is provided with a clamping jaw head which extends inwards in an inclined way and is used for clamping a screw; the rear part of the claw 3 also extends outwards in an inclined way to be matched with the sliding sleeve 2 so as to open the claw head.
The head of the sliding sleeve 2 is provided with a chute matched with the rear part of the claw 3 at a position corresponding to the claw 3, and the contour of the chute is basically consistent with that of the rear part of the claw 3. When the sliding sleeve 2 slides backwards, the inclined groove forces the rear part of the claw 3 to fold inwards, so that the claw head of the claw 3 is opened, and screws can be conveniently put in or released. When the sliding sleeve 2 moves forwards, the head of the sliding sleeve 2 forces the claw heads of the claws 3 to fold inwards, thereby clamping the screw.
The head of the sliding sleeve 2 is also provided with a radial sliding pin 4. The head of the base sleeve 1 is provided with a sliding groove for the sliding pin 4 to slide along the axial direction. The sliding pin 4 and the sliding groove are arranged to enable the sliding sleeve 2 to move only along the axial direction of the base sleeve 1, and the circumferential rotation of the sliding sleeve 2 is limited, so that the claw 3 is prevented from being damaged due to the circumferential rotation of the sliding sleeve 2.
The middle ring of the sliding sleeve 2 protrudes inwards to form a thrust disc 5. The tail of the base sleeve 1 is sleeved with a spring 6. One end of the spring 6 is propped against the thrust disc 5, and the other end is propped against a spring stop disc 7 at the tail end of the base sleeve 1. The spring baffle disc 7 is in threaded connection with the base sleeve 1, so that the looseness degree of the spring 6 can be conveniently adjusted. The spring 6 can automatically reset the sliding sleeve 2 pushed backwards, thereby automatically clamping the screw.
The thrust disc 5 is close to the base sleeve 1 hoop of 3 one sides of jack catch and outwards extrudes and forms spacing dish 8 to the axial motion of restriction sliding sleeve 2 avoids sliding sleeve 2 excessively to damage jack catch 3 forward.
The end part of the head part of the base sleeve 1 protrudes outwards in the circumferential direction to form a blocking disc for preventing foreign matters such as dust and the like from entering the holder so as to influence the use of the holder.
The axial direction of the base sleeve 1 is provided with an inner hexagonal through hole for inserting the screwdriver head.
The second embodiment:
as shown in fig. 3-5, the present embodiment includes a base sleeve 1 and a stabilizing sleeve 9 coaxially sleeved outside the base sleeve 1. The end part of the head part of the stabilizing sleeve 9 protrudes inwards to form a thrust disc for synchronously driving the sliding sleeve 2 to move backwards.
The head circumferencial direction of base cover 1 evenly is equipped with and is no less than three claw groove, and claw 3 is connected with through the round pin in the claw groove, thereby it can gather together or disperse with the centre gripping or release the screw through round pin small-amplitude rotation to be no less than three claw 3. The actions of the at least three clamping jaws 3 are synchronous, and automatic centering can be realized.
The middle part of the claw 3 is provided with a pin hole, and a pin passes through the pin hole to connect the claw 3 into the claw groove. The front part of the clamping jaw 3 extends outwards in an inclined way, and the front end part of the clamping jaw is provided with a clamping jaw head which extends inwards in an inclined way and is used for clamping a screw; the rear part of the claw 3 also extends outwards in an inclined way to be matched with the sliding sleeve 2 so as to open the claw head.
The sliding sleeve 2 is arranged between the head of the base sleeve 1 and the head of the stabilizing sleeve 9. The head of the sliding sleeve 2 is provided with a chute matched with the rear part of the claw 3 at the position corresponding to the claw 3, and the contour of the chute is basically consistent with that of the rear part of the claw 3. When the sliding sleeve 2 slides backwards, the inclined groove forces the rear part of the claw 3 to fold inwards, so that the claw head of the claw 3 is opened, and screws can be conveniently put in or released. When the sliding sleeve 2 moves forwards, the head of the sliding sleeve 2 forces the claw heads of the claws 3 to fold inwards, thereby clamping the screw.
The sliding sleeve 2 is also provided with radial sliding pins 4. The head of the base sleeve 1 is provided with a sliding groove for the sliding pin 4 to slide along the axial direction. The sliding pin 4 and the sliding groove are arranged to enable the sliding sleeve 2 to move only along the axial direction of the base sleeve 1, and the circumferential rotation of the sliding sleeve 2 is limited, so that the claw 3 is prevented from being damaged due to the circumferential rotation of the sliding sleeve 2.
The middle part inside the stabilizing sleeve 9 is connected with an annular thrust disc 5 through threads. The tail of the base sleeve 1 is sleeved with a spring 6. One end of the spring 6 is propped against the thrust disc 5, and the other end is propped against a spring stop disc 7 at the tail end of the base sleeve 1. The spring baffle disc 7 is in threaded connection with the base sleeve 1, so that the looseness degree of the spring 6 can be conveniently adjusted. During operation, the spring 6 and the spring retainer disk 7 rotate relatively, so a spring washer 11 is arranged between the spring 6 and the spring retainer disk 7 to reduce friction of the spring 6 on the spring retainer disk 7. The spring 6 can make the sliding sleeve 2 and the stabilizing sleeve 9 which are pushed backwards automatically reset, thereby automatically clamping the screw.
A bidirectional thrust bearing 10 is also sleeved between the sliding sleeve 2 and the thrust disc 5. After the bidirectional thrust bearing 10 is sleeved, the stabilizing sleeve 9 can apply a certain axial thrust to the sliding sleeve 2 through the bidirectional thrust bearing 10, and then the clamping jaw 3 is extruded, so that a screw can be better stabilized, and the stability and the reliability of the operation are improved; the stabilizing sleeve 9 can also rotate relative to the base sleeve 1, which is beneficial to the holding and operation of personnel.
The base sleeve 1 of the bidirectional thrust bearing 10 close to one side of the clamping jaw 3 protrudes outwards in a circular direction to form a limiting disc 8 for limiting the axial positions of the bidirectional thrust bearing 10 and the stabilizing sleeve 9 and avoiding the damage to the clamping jaw 3 caused by the excessive forward movement of the stabilizing sleeve 9 and the bidirectional thrust bearing 10.
The end part of the head part of the base sleeve 1 protrudes outwards in the circumferential direction to form a blocking disc for preventing foreign matters such as dust and the like from entering the holder so as to influence the use of the holder.
The axial direction of the base sleeve 1 is provided with an inner hexagonal through hole for inserting the screwdriver head.
Example three:
as shown in fig. 6-7, the present embodiment includes a base sleeve 1 and a stepped stabilizing sleeve 9 coaxially sleeved outside the base sleeve 1.
The head circumferencial direction of base cover 1 evenly is equipped with three claw groove, has jack catch 3 through the round pin joint in the claw groove, thereby it can gather together or disperse in order to centre gripping or to release the screw through round pin small-amplitude rotation to be no less than three jack catch 3. The actions of the at least three clamping jaws 3 are synchronous, and automatic centering can be realized.
The middle part of the claw 3 is provided with a pin hole, and a pin passes through the pin hole to connect the claw 3 into the claw groove. The front part of the clamping jaw 3 extends outwards in an inclined way, and the front end part of the clamping jaw is provided with a clamping jaw head which extends inwards in an inclined way and is used for clamping a screw; the rear part of the claw 3 also extends outwards in an inclined way to be matched with the sliding sleeve 2 so as to open the claw head.
The sliding sleeve 2 is arranged between the head of the base sleeve 1 and the head of the stabilizing sleeve 9, a chute matched with the rear part of the claw 3 is arranged at the position, corresponding to the claw 3, of the head of the sliding sleeve 2, and the contour of the chute is basically consistent with the contour of the rear part of the claw 3. When the sliding sleeve 2 slides backwards, the inclined groove forces the rear part of the claw 3 to fold inwards, so that the claw head of the claw 3 is opened, and screws can be conveniently put in or released. When the sliding sleeve 2 moves forwards, the head of the sliding sleeve 2 forces the claw heads of the claws 3 to fold inwards, thereby clamping the screw.
The sliding sleeve 2 is also provided with radial sliding pins 4. The head of the base sleeve 1 is provided with a sliding groove for the sliding pin 4 to slide along the axial direction. The sliding pin 4 and the sliding groove are arranged to enable the sliding sleeve 2 to move only along the axial direction of the base sleeve 1, and the circumferential rotation of the sliding sleeve 2 is limited, so that the claw 3 is prevented from being damaged due to the circumferential rotation of the sliding sleeve 2.
The diameter of the tail part of the stabilizing sleeve 9 is smaller than that of the head part, so that a circular thrust disc 5 is formed at the joint of the middle parts. A bidirectional thrust bearing 10 is sleeved between the sliding sleeve 2 and the thrust disc 5. The tail of the base sleeve 1 is sleeved with a spring 6. One end of the spring 6 is propped against the bidirectional thrust bearing 10, and the other end is propped against a spring stop disc 7 which is formed by the annular outward protrusion at the tail end of the base sleeve 1. During operation, the spring 6 and the spring retainer disk 7 rotate relatively, so a spring washer 11 is arranged between the spring 6 and the spring retainer disk 7 to reduce friction of the spring 6 on the spring retainer disk 7. The spring 6 can make the sliding sleeve 2 and the stabilizing sleeve 9 which are pushed backwards automatically reset, thereby automatically clamping the screw. After the bidirectional thrust bearing 10 is sleeved, the stabilizing sleeve 9 can apply a certain axial thrust to the sliding sleeve 2 through the bidirectional thrust bearing 10, and then the clamping jaw 3 is extruded, so that a screw can be better stabilized, and the stability and the reliability of the operation are improved; the stabilizing sleeve 9 can also rotate relative to the base sleeve 1, which is beneficial to the holding and operation of personnel.
The base sleeve 1 of the bidirectional thrust bearing 10 close to one side of the clamping jaw 3 protrudes outwards in a circular direction to form a limiting disc 8 for limiting the axial positions of the bidirectional thrust bearing 10 and the stabilizing sleeve 9 and avoiding the damage to the clamping jaw 3 caused by the excessive forward movement of the stabilizing sleeve 9 and the bidirectional thrust bearing 10.
The end part of the head part of the base sleeve 1 protrudes outwards in the circumferential direction to form a blocking disc for preventing foreign matters such as dust and the like from entering the holder so as to influence the use of the holder.
The end part of the head part of the stabilizing sleeve 9 is connected with an end cover 12 through threads, and the end cover 12 protrudes inwards in the annular direction to form a thrust disc for synchronously driving the sliding sleeve 2 to move backwards. The tail end of the stabilizing sleeve 9 protrudes inwards in the circumferential direction to form a dust shielding disc for preventing foreign matters such as dust and the like from entering the holder so as to influence the use of the holder.
The axial direction of the base sleeve 1 is provided with an inner hexagonal through hole for inserting the screwdriver head.
The head and the tail of the base sleeve 1 are of split structures connected through threads, so that the whole clamp holder is assembled conveniently.
The third embodiment has a more compact volume structure than the second embodiment.
The invention adds a clamp holder on the basis of the screwdriver head to ensure that the screw is superposed with the axis of the screwdriver head when being screwed into a part, and increases the stability of operation, thereby avoiding the phenomena of deviation and slippage and improving the screwing efficiency of the screw. Simple structure, small volume, low production cost and great popularization value. The corresponding modified design of the claw head of the claw 3 can be applied to various screws, including but not limited to countersunk head screws, semi-countersunk head screws, pan head screws and the like, and the application to other forms of non-crosshead screws, such as hexagon socket head screws, quincunx holes and the like, can be realized by changing the matching form of the base sleeve 1 or the spring baffle disc 7 and the bit.
During specific operation, one end of the screwdriver head is embedded into the hexagonal through hole in the center of the base sleeve 1, and the other end of the screwdriver head is embedded into the screwdriver or the electric drill. The sliding sleeve 2 or the stabilizing sleeve 9 is pushed backwards, so that the claw heads of the claws 3 are spread, the spring 6 is compressed, and then the screw is put in. After the hand is loosened, the claw 3 automatically clamps the screw due to the resilience acting force of the spring 6. Then one hand holds the windbatch or the electric drill, and the other hand holds the clamp holder, so that the screw can be easily assembled in place.
In operation, the hand holding the clamp will naturally exert a force on the clamp in the direction of the screw advance. The greater the holding force, the greater the clamping force of the jaws 3 of the gripper and the better the stability of the screw operation.
After the clamp holder is adopted, the bit and the screw completely work in an axial force transmission mode, the phenomena of deviation and slipping are avoided, and the integrated work of drilling, tapping and clamping can be ideally completed. The operation time is greatly shortened, and the working efficiency is obviously improved; and the screwdriver head can not be subjected to additional abrasion caused by the phenomena of deviation and slippage, the service life is prolonged, correspondingly, the failure rate of the screwdriver and the electric drill is reduced, the service life of a wearing part and an appliance is prolonged, the utilization rate of the screw is improved, and the energy conservation and consumption reduction are facilitated.
Claims (5)
1. A screw clamp, characterized by: the sliding sleeve comprises a base sleeve (1) and a sliding sleeve (2) sleeved outside the base sleeve (1), wherein the sliding sleeve (2) can slide along the axial direction of the base sleeve (1); at least three claw grooves are uniformly formed in the circumferential direction of the head of the base sleeve (1), and claws (3) are arranged in the claw grooves; the middle part of the clamping jaw (3) is provided with a pin hole, and a pin penetrates through the pin hole to connect the clamping jaw (3) into the clamping jaw groove; the front part of the clamping jaw (3) extends outwards in an inclined way, the front end part of the clamping jaw is provided with a clamping jaw head which extends inwards in an inclined way, and the rear part of the clamping jaw (3) also extends outwards in an inclined way; at least three jaws (3) can be rotated by the pin to be gathered or dispersed to clamp or release the screw (14); the sliding sleeve (2) is provided with a chute matched with the sliding sleeve at a position corresponding to the rear part of the clamping jaw (3); the sliding sleeve (2) is also provided with a radial sliding pin (4); the head of the base sleeve (1) is provided with a sliding groove for the sliding pin (4) to slide along the axial direction; the axial direction of the base sleeve (1) is provided with an inner hexagonal through hole for inserting the screwdriver head (13); wherein; the middle part of the sliding sleeve (2) protrudes inwards in the circumferential direction to form a thrust disc (5); a spring (6) is sleeved at the tail part of the base sleeve (1), one end of the spring (6) is propped against the thrust disc (5), and the other end of the spring (6) is propped against a detachable spring baffle disc (7) at the tail end of the base sleeve (1); the base sleeve (1) on one side of the thrust disc (5) close to the clamping jaw (3) protrudes outwards in the annular direction to form a limiting disc (8), and a stabilizing sleeve (9) is arranged outside the sliding sleeve (2); the sliding sleeve (2) is arranged between the head of the base sleeve (1) and the head of the stabilizing sleeve (9); the end part of the head part of the stabilizing sleeve (9) protrudes inwards to form a thrust disc for synchronously driving the sliding sleeve (2) to move backwards; the middle part inside the stabilizing sleeve (9) is detachably connected with an annular thrust disc (5); a spring (6) is sleeved at the tail part of the base sleeve (1), one end of the spring (6) is propped against the thrust disc (5), and the other end of the spring (6) is propped against a detachable spring baffle disc (7) at the tail end of the base sleeve (1), wherein; a bidirectional thrust bearing (10) is sleeved between the sliding sleeve (2) and the thrust disc (5); the bidirectional thrust bearing (10) is close to the base sleeve (1) on one side of the clamping jaw (3) and protrudes outwards in the annular direction to form a limiting disc (8), the thrust disc (5) is in threaded connection with the stabilizing sleeve (9), and the head and the tail of the base sleeve (1) are of a split structure.
2. The screw holder of claim 1, wherein: the end part of the head part of the stabilizing sleeve (9) is detachably connected with an end cover (12) in a threaded manner, the end cover (12) protrudes inwards in the annular direction to form a thrust disc for synchronously driving the sliding sleeve (2) to move backwards, and a spring gasket (11) is arranged between the spring (6) and the spring baffle disc (7).
3. A screw holder according to claim 1, wherein: the diameter of the tail part of the stabilizing sleeve (9) is smaller than that of the head part, and an annular thrust disc (5) is formed at the middle connecting part of the stabilizing sleeve (9); a bidirectional thrust bearing (10) is sleeved between the sliding sleeve (2) and the thrust disc (5); the tail part of the base sleeve (1) is sleeved with a spring (6); one end of the spring (6) is propped against the bidirectional thrust bearing (10), and the other end is propped against a spring baffle disc (7) which is formed by the circumferential outward protrusion of the tail part of the base sleeve (1).
4. The screw holder of claim 1, wherein: the tail end of the stabilizing sleeve (9) protrudes inwards in the circumferential direction to form a dust shielding disc.
5. The screw holder of claim 1, wherein: the head and the tail of the base sleeve (1) are connected through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710968845.3A CN107553385B (en) | 2017-10-18 | 2017-10-18 | Screw clamp holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710968845.3A CN107553385B (en) | 2017-10-18 | 2017-10-18 | Screw clamp holder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107553385A CN107553385A (en) | 2018-01-09 |
| CN107553385B true CN107553385B (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710968845.3A Active CN107553385B (en) | 2017-10-18 | 2017-10-18 | Screw clamp holder |
Country Status (1)
| Country | Link |
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| CN (1) | CN107553385B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108747935B (en) * | 2018-05-06 | 2020-05-19 | 黄思忠 | Safety protection device for installing outer hexagonal self-tapping screw with pad and drill tail |
| CN110076549A (en) * | 2019-04-29 | 2019-08-02 | 深圳市迈特迅科技有限公司 | A kind of universal floating self-conductance normal solution screw terminal |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1575149A (en) * | 1925-02-11 | 1926-03-02 | James L Craig | Screw holder and driver |
| GB605509A (en) * | 1945-01-25 | 1948-07-26 | Aircraft Screw Prod Co | Long-shaft stud driver |
| JPS53101799A (en) * | 1977-02-18 | 1978-09-05 | Asakichi Suga | Feeder of screws |
| JPS56147085U (en) * | 1980-04-04 | 1981-11-05 | ||
| JPH07328946A (en) * | 1994-06-07 | 1995-12-19 | Kokubu:Kk | Screw jack for power tool |
| JP4557146B2 (en) * | 2004-09-29 | 2010-10-06 | 株式会社安川電機 | Fastening device |
| CN2815621Y (en) * | 2005-03-15 | 2006-09-13 | 上海环达计算机科技有限公司 | Auxiliary grippers |
| CN203092446U (en) * | 2012-12-29 | 2013-07-31 | 南京德朔实业有限公司 | Power tool and clamping mechanism thereof |
| CN104416520B (en) * | 2013-08-19 | 2016-11-23 | 苏州宝时得电动工具有限公司 | Electric screwdriver |
| CN103433868B (en) * | 2013-08-23 | 2015-04-08 | 福建闽机机械科技有限公司 | Automatic clamping device |
| CN207358954U (en) * | 2017-10-18 | 2018-05-15 | 贵州佛施特电力配套有限公司 | Screw holder |
-
2017
- 2017-10-18 CN CN201710968845.3A patent/CN107553385B/en active Active
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| CN107553385A (en) | 2018-01-09 |
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