CN218984615U - Interface screw screwdriver - Google Patents

Abstract

The application relates to the technical field of medical instruments, and particularly discloses an interface screw driver; the interface screw screwdriver comprises a handle and a screwing main rod, wherein a through hole along the axial direction of the screwing main rod is formed in the screwing main rod, and a movable rod is inserted in the through hole in a sliding manner; one end of the screwing main rod is connected with the handle, the other end of the screwing main rod is provided with a screwing limiting part matched with an inner hole of the interface screw and a bulb part positioned at the outer end of the screwing limiting part, and the bulb part is provided with a deformation abdication groove for changing the radial size of the bulb part; the handle is provided with a button component which can drive the movable rod to reciprocate in the through hole of the screwing main rod. The end part of the main rod is provided with the ball head part, the deformation abdication groove is formed, the movable rod capable of axially moving is matched with the pressing component, the effect of self-holding interface screw can be conveniently achieved, and the screwdriver is convenient to separate from the interface screw.

Description

Interface screw screwdriver

Technical Field

The application relates to the technical field of medical instruments, in particular to an interface screw driver.

Background

Ligament injury is one of the most common and serious exercise wounds, and the current method for treating ligament rupture is usually to implant autologous tendons into a bone tunnel to reconstruct the ligament, and interface screws are a common surgical auxiliary instrument used in ligament reconstruction surgery and mainly used for fixing the tendons into the bone tunnel and ensuring the healing of the tendons.

The interface screw is fixed by using a special tool, and the interface screw screwdriver is an operation tool which is indispensable in sports medical operation as an instrument for implanting the interface screw. The interface screw self-holding screw driver in the market at present mostly adopts a tapered hexagonal interface or a tapered tetragonal interface, a tapered plum blossom interface and other modes to achieve the effect of self-holding the interface screw, and the mode can cause the phenomenon that the interface screw is too tight with the interface screw driver due to forced extrusion when the interface screw is implanted into a human body, and when the interface screw driver is taken out, the interface screw driver can be pulled out together with the implanted interface screw, so that the risk of operation failure is increased; meanwhile, the interface of the interface screw and the screwdriver is provided with taper, so that the inspection difficulty is high.

Disclosure of Invention

In order to improve convenience and success rate in the process of installing the interface screw. The application provides an interface screw driver.

The application provides an interface screw screwdriver adopts following technical scheme:

the interface screw screwdriver comprises a handle and a screwing main rod, wherein a through hole along the axial direction of the screwing main rod is formed in the screwing main rod, and a movable rod is inserted into the through hole in a sliding manner; one end of the screwing main rod is connected with the handle, the other end of the screwing main rod is provided with a screwing limiting part matched with an inner hole of the interface screw and a bulb part positioned at the outer end of the screwing limiting part, and the bulb part is provided with a deformation abdication groove for changing the radial size of the bulb part; the handle is provided with a button component which can drive the movable rod to reciprocate in the through hole of the screwing main rod.

When the screwdriver is used, an interface screw to be installed is taken out, a button assembly on the handle is pressed, the button assembly drives the movable rod to move in the through hole of the screwing main rod, the movable rod is far away from the bulb part of the screwing main rod, at the moment, due to the existence of the deformation abdication groove, the bulb part can be extruded to deform, each petal of the movable rod is radially close to each other to reduce the radial size, the interface screw can be conveniently and rapidly sleeved on the screwing limiting part and the bulb part of the screwing main rod, then the button assembly is loosened, the movable rod moves in the through hole of the screwing main rod to the bulb part of the screwing main rod, the bulb part is extruded to deform, each petal of the movable rod is radially stretched to increase the radial size, so that the interface screw can be fixed on the screwing main rod to form the effect of the self-sustaining interface screw, after the installation of the interface screw is completed, the button assembly is pressed again, the movable rod is driven to move towards one end far away from the bulb part, the bulb part is deformed, and the screwdriver can be easily taken out.

The tip at the mobile jib of screwing in this application sets up the bulb to set up deformation groove of stepping down, but again adopt axial movement's movable rod and pressing component cooperation, the effect of realization self-sustaining interface screw that can be convenient. Meanwhile, the problem that the interface screw and the screwdriver are difficult to pull out due to overtightening after the interface screw and the screwdriver are implanted in the interface screw in the market at present is solved.

The utility model discloses an adopt the tapering limit part of screwing of No. can cooperate with the interface screw in this application, this structural design has reduced the inspection degree of difficulty, the size of control more easily. The whole screwdriver has ingenious structural design and high operability, and is safer and more effective.

Optionally, one end of the movable rod is located in the screwing main rod and can move to the ball head part, and the other end of the movable rod is inserted in the handle in a sliding manner;

the side surface of the handle is provided with a mounting groove;

the button assembly comprises a sliding block, a pressing handle and a first reset elastic piece, wherein the sliding block is arranged in the mounting groove in a sliding mode, the sliding block is fixedly connected with the movable rod, one end of the pressing handle is hinged to the groove wall of the mounting groove through a connecting pin, the other end of the pressing handle extends out of the mounting groove and can drive the sliding block to move in the mounting groove along the direction of the axial direction of the handle away from the direction of the screwing main rod, and the first reset elastic piece is arranged in the mounting groove and can push the sliding block to move in the mounting groove along the direction of the axial direction of the handle close to the direction of the screwing main rod.

Through adopting above-mentioned technical scheme, hold the handle, can press the handle with the thumb for press the handle swing, press the handle and drive the slider along the axial direction of handle in the mounting groove and move in the direction of keeping away from the screwing mobile jib, thereby be convenient for place the interface screw and withdraw from the screwdriver after the operation is accomplished, in carrying and installing interface screw operation in-process, rely on the effect that first elastic component that resets realized self-sustaining interface screw, whole operation process is very convenient, and reliable and stable.

Optionally, the sliding block is sleeved on the movable rod, one side of the sliding block is provided with a first inclined guide surface, and the first inclined guide surface is obliquely upwards arranged from one end close to the screwing main rod to one end far away from the screwing main rod; one side of the pressing handle is provided with a second inclined guide surface which is matched and abutted with the first inclined guide surface.

Through adopting above-mentioned technical scheme, when pressing the handle swing, press the first slope guide surface on the second slope guide surface extrusion sliding block on the handle to the drive sliding block moves along the axial orientation of handle in the mounting groove and keep away from the direction of screwing the mobile jib, inclined plane cooperation mode simple structure, reliable and stable.

Optionally, the first reset elastic piece is a first spiral spring, the first spiral spring is sleeved on the movable rod, one end of the first spiral spring sleeve is propped against the side wall of the mounting groove, and the other end of the first spiral spring sleeve is propped against the end face of the sliding block.

Through adopting above-mentioned technical scheme, first coil spring is used for providing continuous pressure to the sliding block to the drive sliding block has the trend that continuously moves to the direction of screwing the mobile jib, makes the one end of movable rod can keep in bulb portion, and then realizes the effect of reliable and stable's self-sustaining interface screw.

Optionally, the outer peripheral surface of the screwing limiting part is square, hexagonal or quincuncial; the ball head part is connected with the screwing limiting part through a thin neck connecting part; the diameter of the ball head part is larger than that of the inner circle of the screwing limiting part; the diameter of the ball head part and the diameter of the inner circle of the screwing limiting part are both larger than the outer diameter of the thin neck connecting part.

Through adopting above-mentioned technical scheme, revolve and twist limit portion and have multiple appearance to can adapt to the interface screw of different shapes, the commonality is good, has improved its application range.

Optionally, the deformation abdication groove extends from the end face of the ball head part along the axial direction of the screwing main rod towards the direction of the handle, and the deformation abdication groove penetrates through the ball head part and the thin neck connecting part and extends to the end face of the screwing limiting part.

Through adopting above-mentioned technical scheme, be connected through thin neck connecting portion between bulb portion and the limit portion of screwing up and extend deformation groove of stepping down to thin neck connecting portion in, be favorable to the deformation shrink of bulb portion.

Optionally, one end of the screwing main rod is detachably and fixedly connected with one end of the handle through a clamping assembly.

Through adopting above-mentioned technical scheme, can realize fast that the mobile jib is twisted in the spiral of different shape specifications changes to adapt to the interface screw of different shape specifications, improve the commonality.

Optionally, the clamping assembly includes a locking member and a second reset elastic member;

the end part of the handle is provided with a square hole along the axial direction of the handle, the peripheral surface of the handle is provided with a mounting hole along the radial direction of the handle, and the mounting hole is communicated with the square hole;

the locking piece is arranged in the mounting hole, one end of the locking piece extends out of the mounting hole of the handle, and the other end of the locking piece is provided with a locking convex column; both ends of the second reset elastic piece respectively act on the handle and the locking piece;

the screw-on main rod is provided with a square head at one end connected with the handle, the square head is inserted in the square hole, and a locking hole matched with the locking convex column is formed in the square head.

By adopting the technical scheme, the square head at the end part of the screwing main rod is matched with the square hole at the end part of the handle, so that a circumferential limiting effect can be formed, and the relative rotation between the handle and the screwing main rod is limited, so that the handle can drive the screwing main rod to rotate for installing an interface screw; when the main rod is screwed in the change, the locking piece is pressed, the locking convex column on the locking piece is separated from the locking hole on the square head, so that the main rod is screwed down smoothly, the locking piece is loosened after the new main rod is screwed down is inserted, under the action of the elastic restoring force of the second elastic restoring piece, the locking convex column on the locking piece is inserted into the locking hole on the square head of the main rod, the connection between the main rod and the handle is screwed, and the whole structure is convenient to operate and can be used for rapidly switching the screwing main rods with different shape specifications.

Optionally, the mounting hole penetrates through two sides of the handle, the locking piece comprises a pressing convex column and a square collar, one end of the pressing convex column extends out of the handle from one end of the mounting hole, the other end of the pressing convex column is fixedly connected with one side of the square collar, the square collar is sleeved outside the square head, and the locking convex column is located on the inner wall of the other side of the square collar; the end port of one end of the mounting hole is fixedly provided with a blocking head, the second reset elastic piece is a second spiral spring, the second spiral spring is mounted in the mounting hole, one end of the second spiral spring abuts against or is fixedly connected with the bottom of the square lantern ring, and the other end of the second spiral spring abuts against or is fixedly connected with the blocking head.

Through adopting above-mentioned technical scheme, the equipment of joint subassembly and handle of being convenient for, and each spare part cost is lower, uses convenient, steady reliably.

Optionally, the handle, the screwing main rod and the movable rod are all coaxially arranged; the outer peripheral surface of the handle is provided with a plurality of strip-shaped grooves along the axial direction of the handle, and the strip-shaped grooves are uniformly distributed at intervals along the circumferential direction of the handle.

Through adopting above-mentioned technical scheme, can increase operator and hold the frictional force of handle, prevent to skid to improve fail safe nature.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the tip at the mobile jib of screwing in this application sets up the bulb to set up deformation groove of stepping down, but again adopt axial movement's movable rod and pressing component cooperation, the effect of realization self-sustaining interface screw that can be convenient.

2. The design of the end part interface of the screw-on main rod without taper reduces the inspection difficulty, is easier to control the size, and simultaneously solves the problem that the interface screw and the screw driver are difficult to pull out due to too tight after the interface screw is implanted into the interface screw in the current market.

3. One end of the main rod is screwed with one end of the handle through the clamping assembly in the application. The free switching of the screwing main rod with various shapes and specifications can be realized rapidly, and the universality and the use convenience of the screwing main rod are improved.

4. The whole screwdriver in this application structural design is ingenious, and maneuverability is high, and is safe and effective more.

Drawings

Fig. 1 is a schematic perspective view of an interface screw driver in the present application.

Fig. 2 is a partially enlarged schematic structural view at a in fig. 1.

Fig. 3 is a schematic perspective view of a second screwing boom in the present application.

Fig. 4 is a partially enlarged structural schematic diagram at B in fig. 3.

Fig. 5 is a schematic perspective view of a third screwing boom in the present application.

Fig. 6 is a partially enlarged structural schematic diagram at C in fig. 5.

Fig. 7 is a schematic cross-sectional view of an interface screw driver of the present application.

Fig. 8 is a partially enlarged structural schematic diagram at D in fig. 7.

Fig. 9 is a schematic structural view of the button assembly in the present application.

Fig. 10 is a schematic structural view of the locking member in the present application.

In the figure, 1, a handle; 11. a mounting groove; 12. square holes; 13. a mounting hole; 14. a bar-shaped groove;

2. screwing the main rod; 21. a through hole; 22. screwing the limiting part; 23. a ball head portion; 24. deformation abdication grooves; 25. a neck connection; 26. square head; 261. a locking hole;

3. a movable rod;

4. a button assembly; 41. a sliding block; 411. a first inclined guide surface; 42. pressing the handle; 421. a second inclined guide surface; 43. a first return elastic member; 431. a first coil spring; 44. a connecting pin;

5. a clamping assembly; 51. a locking member; 511. locking the convex column; 512. pressing the convex column; 513. a square collar; 52. a second return elastic member; 521. a second coil spring; 53. and (5) plugging the end cap.

Detailed Description

The present application is described in further detail below with reference to fig. 1 to 10.

Referring to fig. 1 and 2, an interface screw screwdriver comprises a handle 1 and a screwing main rod 2, wherein one end of the screwing main rod 2 is connected with the handle 1, and the other end extends out of the handle 1 to be matched with an interface screw; the handle 1 and the screwing main rod 2 are coaxially arranged; the outer peripheral surface of the handle 1 is provided with a plurality of strip-shaped grooves 14 along the axial direction of the handle 1, and the strip-shaped grooves 14 are uniformly distributed at intervals along the circumferential direction of the handle 1, so that the friction force of an operator for holding the handle 1 can be increased, slipping is prevented, and the safety and the reliability are improved.

Referring to fig. 2, one end of the screwing main rod 2 far away from the handle 1 is provided with a screwing limiting part 22 matched with an interface screw inner hole and a ball head part 23 positioned at the outer end of the screwing limiting part 22, wherein the ball head part 23 is provided with a deformation relief groove 24 for changing the radial dimension of the ball head part 23; the outer periphery of the screwing limiting part 22 is hexagonal and is used for being matched with an interface screw of the inner hexagonal hole; the ball head part 23 is connected with the screwing limiting part 22 through a thin neck connecting part 25; the diameter of the ball head part 23 is larger than the diameter of the inner circle of the screwing limit part 22; the diameter of the ball portion 23 and the diameter of the inner circle of the screwing limit portion 22 are larger than the outer diameter of the neck connecting portion 25. The deformation yielding groove 24 extends from the end face of the ball head portion 23 in the direction of the handle 1 along the axial direction of the screwing main rod 2, and the deformation yielding groove 24 penetrates through the ball head portion 23 and the neck connecting portion 25 and extends to the end face of the screwing limiting portion 22.

Referring to fig. 3 and 4, each handle 1 may be used with a plurality of types of screwing main rods 2, and the screwing main rods 2 with different types of specifications are mainly different in shape of the screwing limit portion 22, for example, as another screwing main rod 2, the outer peripheral surface of the screwing limit portion 22 is square for being used with interface screws of inner four corner holes.

Referring to fig. 5 and 6, as a third type of the screwing main rod 2, the outer circumferential surface of the screwing stopper 22 of the screwing main rod 2 is quincuncial for use in cooperation with an interface screw of a quincuncial bore. Thus, each set of screwdriver is matched with a plurality of screwing main rods 2, different screwing main rods 2 are provided with screwing limiting parts 22 with different shapes, and the matched screwing main rods 2 are selected according to the interface screws required to be installed, so that the screwdriver can adapt to the interface screws with different shapes, has good universality and improves the application range of the screwdriver.

In the application, the diameter of the ball head part 23 of the screwing main rod 2 is 0.1-0.15 mm larger than the diameter of the inner circle of the screwing limiting part 22, the size from the ball head part 23 of the screwing main rod 2 to the end face of the screwing limiting part 22 is about 4mm, and the deformation abdicating groove 24 of the ball head part 23 is 1mm in width.

Referring to fig. 7 and 8, the screw main rod 2 has a through hole 21 along the axial direction of the screw main rod 2, a movable rod 3 is slidably inserted into the through hole 21, and the movable rod 3 is coaxially arranged with the screw main rod 2; the handle 1 is also internally provided with a through hole along the axial direction of the handle 1, a through hole 21 in the screwing main rod 2 is coaxially arranged with the through hole in the handle 1, one end of the movable rod 3 is positioned in the screwing main rod 2 and can move to a ball head part 23 of the screwing main rod 2, the other end of the movable rod is positioned in the handle 1, and the handle 1 is provided with a button assembly 4 capable of driving the movable rod 3 to reciprocate in the through hole 21 of the screwing main rod 2 and the through hole of the handle 1.

Referring to fig. 8 and 9, a mounting groove 11 is formed on the side surface of the handle 1, and the mounting groove 11 is communicated with a through hole in the handle 1; the button assembly 4 comprises a sliding block 41, a pressing handle 42 and a first reset elastic piece 43, wherein the sliding block 41 is arranged in the installation groove 11 in a sliding mode, the sliding block 41 is sleeved on the movable rod 3, the sliding block 41 is fixedly connected with the movable rod 3, one end of the pressing handle 42 is hinged to the groove wall of the installation groove 11 through a connecting pin 44, the other end of the pressing handle 42 extends out of the installation groove 11, the pressing handle 42 can swing to drive the sliding block 41 to move in the installation groove 11 along the axial direction of the handle 1 in a direction away from the screwing main rod 2, and the first reset elastic piece 43 is arranged in the installation groove 11 and can push the sliding block 41 to move in the installation groove 11 along the axial direction of the handle 1 in a direction close to the screwing main rod 2. The first return elastic member 43 may be a first coil spring 431, the first coil spring 431 is sleeved on the movable rod 3, one end of the first coil spring 431 sleeve abuts against the side wall of the mounting groove 11, and the other end of the first coil spring 431 sleeve abuts against the end face of the sliding block 41.

Referring to fig. 9, one side of the slider 41 has a first inclined guide surface 411, the first inclined guide surface 411 being disposed obliquely upward from an end near the screwing main lever 2 to an end far from the screwing main lever 2; one side of the pressing handle 42 has a second inclined guide surface 421 which is abutted in cooperation with the first inclined guide surface 411.

When the operator holds the handle 1, he can press the pressing handle 42 with his thumb to make the pressing handle 42 swing, the second inclined guide surface 421 on the pressing handle 42 presses the first inclined guide surface 411 on the sliding block 41, and the sliding block 41 is driven to move in the installation groove 11 along the axial direction of the handle 1 in the direction away from the screwing main rod 2, so as to be convenient for placing the interface screw and withdrawing the screwdriver after the operation is completed, and in the process of transferring and installing the interface screw operation, the first coil spring 431 is used for providing continuous pressure for the sliding block 41, and the effect of self-holding the interface screw is realized by virtue of the first reset elastic piece 43, so that the whole operation process is very convenient, stable and reliable.

The handle 1 in the application can be broken into a front part and a rear part at the position of the mounting groove 11, and the two parts are assembled into a whole, so that the mounting of all parts inside is facilitated.

Referring to fig. 7 and 8, one end of the screwing main rod 2 is detachably and fixedly connected with one end of the handle 1 through a clamping assembly 5. The clamping assembly 5 comprises a locking piece 51 and a second reset elastic piece 52; the end part of the handle 1 is provided with a square hole 12 along the axial direction of the handle 1, the outer circumferential surface of the handle 1 is provided with a mounting hole 13 along the radial direction of the handle 1, and the mounting hole 13 is communicated with the square hole 12; the locking piece 51 is installed in the installation hole 13, one end of the locking piece 51 extends out of the installation hole 13 of the handle 1, and the other end of the locking piece 51 is provided with a locking convex column 511; both ends of the second return elastic member 52 act on the handle 1 and the locking member 51, respectively; the end of the screwing main rod 2 connected with the handle 1 is provided with a square head 26, the square head 26 is inserted into the square hole 12, and a locking hole 261 matched with the locking convex column 511 is formed in the square head 26; the square hole 12 is a square hole, the cross section of the square head 26 is square, and the middle parts of the four side surfaces of the square head 26 are all provided with locking holes 261, so that when the screwing main rod 2 is installed, the rotation directions do not need to be distinguished, the locking can be realized by being inserted into the square hole 12, and the convenience of assembly is improved.

The square head 26 at the end part of the screwing main rod 2 is matched with the square hole 12 at the end part of the handle 1, so that a circumferential limiting effect can be formed, and the relative rotation between the handle 1 and the screwing main rod 2 is limited, so that the handle 1 can drive the screwing main rod 2 to rotate for installing an interface screw; when the main rod 2 is screwed in the replacement, the locking piece 51 is pressed, the locking convex column 511 on the locking piece 51 is separated from the locking hole 261 on the square head 26, so that the main rod 2 is screwed down smoothly, the locking piece 51 is loosened after the new main rod 2 is screwed in the insertion mode, under the elastic restoring force of the second reset elastic piece 52, the locking convex column 511 on the locking piece 51 is inserted into the locking hole 261 on the square head 26 of the main rod 2, connection between the main rod 2 and the handle 1 is realized, the whole structure is convenient to operate, the main rod 2 is screwed in different shapes and specifications can be switched quickly, interface screws of different shapes and specifications are adapted, and universality is improved.

Referring to fig. 8 and 10, the mounting hole 13 penetrates through both sides of the handle 1, the locking member 51 includes a pressing boss 512 and a square collar 513, one end of the pressing boss 512 extends out of the handle 1 from one end of the mounting hole 13, the other end of the pressing boss 512 is fixedly connected with one side of the square collar 513, the square collar 513 is sleeved outside the square head 26, and the locking boss 511 is located on the inner wall of the other side of the square collar 513; the end port of the mounting hole 13 is fixedly provided with a blocking head 53, the second reset elastic piece 52 is a second spiral spring 521, the second spiral spring 521 is mounted in the mounting hole 13, one end of the second spiral spring 521 abuts against or is fixedly connected with the bottom of the square lantern ring 513, and the other end of the second spiral spring 521 abuts against or is fixedly connected with the blocking head 53.

The principle of the embodiment is as follows: when the screwdriver is used, an interface screw to be installed is taken out, the button assembly 4 on the handle 42 is pressed, the button assembly 4 drives the movable rod 3 to move in the through hole 21 of the screwing main rod 2, the movable rod 3 is far away from the ball head part 23 of the screwing main rod 2, at the moment, the ball head part 23 can be extruded to deform due to the deformation yielding groove 24, each petal of the interface screw can be radially closed so as to reduce the radial size, the interface screw can be conveniently and rapidly sleeved on the screwing limiting part 22 and the ball head part 23 of the screwing main rod 2, then the button assembly 4 is loosened, the movable rod 3 moves towards the ball head part 23 of the screwing main rod 2 in the through hole 21 of the screwing main rod 2, the ball head part 23 is extruded to deform, each petal of the movable rod is radially expanded so as to enlarge the radial size, the interface screw can be fixed on the screwing main rod 2, the effect of the self-holding interface screw is formed, after the installation of the interface screw is completed, the button assembly 4 is pressed again, the movable rod 3 is driven to move towards one end far away from the ball head part 23, the deformation can be easily taken out, and the screwdriver can be easily taken out.

In this application, set up bulb portion 23 in the tip of screwing mobile jib 2 to set up deformation groove 24 of stepping down, but again adopt axial movement's movable rod 3 and press the subassembly cooperation, the effect of realization self-sustaining interface screw that can be convenient. Meanwhile, the problem that the interface screw and the screwdriver are difficult to pull out due to overtightening after the interface screw and the screwdriver are implanted in the interface screw in the market at present is solved. The adoption of the non-taper screwing limiting part 22 can be matched with the interface screw, and the structural design reduces the inspection difficulty and is easier to control the size. The whole screwdriver has ingenious structural design and high operability, and is safer and more effective.

The embodiments of this embodiment are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, in which like parts are denoted by like reference numerals. Therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. The interface screw screwdriver comprises a handle (1) and a screwing main rod (2), and is characterized in that a through hole (21) along the axial direction of the screwing main rod (2) is formed in the screwing main rod (2), and a movable rod (3) is inserted in the through hole (21) in a sliding manner; one end of the screwing main rod (2) is connected with the handle (1), the other end of the screwing main rod (2) is provided with a screwing limiting part (22) matched with an inner hole of an interface screw and a ball head part (23) positioned at the outer end of the screwing limiting part (22), and the ball head part (23) is provided with a deformation abdication groove (24) for changing the radial size of the ball head part (23); the handle (1) is provided with a button assembly (4) which can drive the movable rod (3) to reciprocate in the through hole (21) of the screwing main rod (2).

2. An interface screw screwdriver according to claim 1, characterized in that one end of the movable rod (3) is located in the screwing main rod (2) and can move to the ball head part (23), and the other end of the movable rod (3) is slidingly inserted in the handle (1);

the side surface of the handle (1) is provided with a mounting groove (11);

button subassembly (4) include slider (41), press handle (42) and first elastic component that resets (43), slider (41) slip sets up in mounting groove (11), slider (41) with movable rod (3) link firmly mutually, the one end of pressing handle (42) articulates through connecting pin (44) on the cell wall of mounting groove (11), the other end of pressing handle (42) stretches out outside mounting groove (11) just press handle (42) swing can drive slider (41) follow in mounting groove (11) the axial orientation of handle (1) is kept away from the direction of screwing mobile jib (2) is removed, first elastic component that resets (43) are installed in mounting groove (11) and can promote slider (41) follow in mounting groove (11) the axial orientation of handle (1) is close to the direction of screwing mobile jib (2).

3. An interface screw screwdriver according to claim 2, wherein the sliding block (41) is sleeved on the movable rod (3), one side of the sliding block (41) is provided with a first inclined guide surface (411), and the first inclined guide surface (411) is obliquely upwards arranged from one end close to the screwing main rod (2) to one end far away from the screwing main rod (2); one side of the pressing handle (42) is provided with a second inclined guide surface (421) which is matched with and abutted against the first inclined guide surface (411).

4. An interface screw driver according to claim 2 or 3, characterized in that the first return elastic member (43) is a first coil spring (431), the first coil spring (431) is sleeved on the movable rod (3), one end of the first coil spring (431) sleeve is abutted against the side wall of the mounting groove (11), and the other end of the first coil spring (431) sleeve is abutted against the end face of the sliding block (41).

5. An interface screw driver according to claim 1, 2 or 3, characterized in that the outer peripheral surface of the screwing limit part (22) is square, hexagonal or quincuncial; the ball head part (23) is connected with the screwing limiting part (22) through a thin neck connecting part (25); the diameter of the ball head part (23) is larger than the diameter of the inner circle of the screwing limiting part (22); the diameter of the ball head part (23) and the diameter of the inner circle of the screwing limiting part (22) are both larger than the outer diameter of the thin neck connecting part (25).

6. An interface screw driver according to claim 5, characterized in that the deformation relief groove (24) extends from the end face of the ball head (23) in the axial direction of the screwing main rod (2) towards the handle (1), the deformation relief groove (24) penetrating the ball head (23) and the neck connection (25) and extending to the end face of the screwing limit part (22).

7. An interface screw driver according to claim 1, 2 or 3, characterized in that one end of the screwing main rod (2) is detachably and fixedly connected with one end of the handle (1) through a clamping assembly (5).

8. An interface screw driver according to claim 7, characterized in that the clamping assembly (5) comprises a locking member (51) and a second return elastic member (52);

the end part of the handle (1) is provided with a square hole (12) along the axial direction of the handle (1), the outer circumferential surface of the handle (1) is provided with a mounting hole (13) along the radial direction of the handle (1), and the mounting hole (13) is communicated with the square hole (12);

the locking piece (51) is arranged in the mounting hole (13), one end of the locking piece (51) extends out of the mounting hole (13) of the handle (1), and the other end of the locking piece (51) is provided with a locking convex column (511); both ends of the second reset elastic piece (52) respectively act on the handle (1) and the locking piece (51);

the screw-on main rod (2) is provided with a square head (26) at one end connected with the handle (1), the square head (26) is inserted into the square hole (12), and a locking hole (261) matched with the locking convex column (511) is formed in the square head (26).

9. An interface screw screwdriver according to claim 8, wherein the mounting hole (13) penetrates through two sides of the handle (1), the locking piece (51) comprises a pressing convex column (512) and a square collar (513), one end of the pressing convex column (512) extends out of the handle (1) from one end of the mounting hole (13), the other end of the pressing convex column (512) is fixedly connected with one side of the square collar (513), the square collar (513) is sleeved outside the square head (26), and the locking convex column (511) is located on the inner wall of the other side of the square collar (513); the end port of the mounting hole (13) is fixedly provided with a blocking head (53), the second reset elastic piece (52) is a second spiral spring (521), the second spiral spring (521) is mounted in the mounting hole (13), one end of the second spiral spring (521) abuts against or is fixedly connected with the bottom of the square collar (513), and the other end of the second spiral spring (521) abuts against or is fixedly connected with the blocking head (53).

10. An interface screw driver according to claim 1 or 2 or 3, characterized in that the handle (1), the screwing main rod (2) and the movable rod (3) are all coaxially arranged; the outer peripheral surface of the handle (1) is provided with a plurality of strip-shaped grooves (14) along the axial direction of the handle (1), and the strip-shaped grooves (14) are uniformly distributed at intervals along the circumferential direction of the handle (1).

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