CN213098263U

CN213098263U - Screw holding device

Info

Publication number: CN213098263U
Application number: CN202021654100.3U
Authority: CN
Inventors: 杨明; 戴伟; 卢昌胜
Original assignee: Wuxi Beida Medical Technology Co ltd
Current assignee: Wuxi Beida Medical Technology Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-05-04
Anticipated expiration: 2030-08-10

Abstract

The utility model relates to a screw holder; the method is characterized in that: the clamping device comprises a handle, an outer clamping sleeve, a hand lever for clamping a screw, an inner clamping sleeve for clamping the hand lever and a fixing mechanism for pressing the hand lever; the inner clamping sleeve is arranged on the handle; the hand lever is movably arranged in the inner jacket; the outer jacket is sleeved on the inner jacket; the fixing mechanism is movably arranged on the handle. The problem of thereby easily drop when the extrusion of the cross tool bit that current scheme caused advances screw cross recess and uses wearing and tearing and easily take off when being difficult to clamping screw and centre gripping and often change the cross tool bit cost higher and the unable clamping screw afterbody of cross tool bit causes the operation that drops of screw the risk is great when the operation is solved.

Description

Screw holding device

Technical Field

The utility model relates to a holding ware, concretely relates to screw holding ware.

Background

Generally, the screws are used by the operating doctors in hospitals during the specific operation work, and the screws are generally small screws, so that the small screws are difficult to clamp due to the small volume. The nail holder for the small screw belongs to a universal instrument in the medical instrument industry, is generally suitable for tightening, is generally provided with a clamping handle part at one end of a handle part to apply external force, and can tighten the small screw by applying force to the handle part along the thread rotating direction during use. In order to conveniently and rapidly clamp the small screw, a professional tool which can conveniently clamp the screw, in particular to clamp the small screw, is needed in the medical field. How to solve this problem becomes crucial.

The existing scheme adopts the cross-shaped tool bit arranged on the handle part, and screws are screwed through the cross-shaped tool bit. Such a solution has the following problems: (1) the cross-shaped cutter head is extruded into the cross groove of the screw to be worn, so that the screw is difficult to clamp, the screw is easy to fall off during clamping, and the cost for frequently replacing the cross-shaped cutter head is high; (2) the cross-shaped cutter head can not clamp the tail part of the screw, the screw falls off, and the risk is high during the operation.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a screw holder to thereby easily drop off and often change the great scheduling problem of risk when the operation that drops that cross tool bit cost is higher and the unable holding screw afterbody of cross tool bit caused the screw in the time of thereby solving among the prior art cross tool bit extrusion screw cross recess and using wearing and tearing to be difficult to holding screw and centre gripping.

The utility model discloses the technical scheme who adopts as follows:

a screw holder;

the clamping device comprises a handle, an outer clamping sleeve, a hand lever for clamping a screw, an inner clamping sleeve for clamping the hand lever and a fixing mechanism for pressing the hand lever; the inner clamping sleeve is arranged on the handle; the hand lever is movably arranged in the inner jacket; the outer jacket is sleeved on the inner jacket; the fixing mechanism is movably arranged on the handle.

The further technical scheme is as follows: the handle comprises a rod body, a handle body sleeved on the rod body, a handle groove formed in the handle body and a rod groove formed in the rod body; the handle groove is formed around the handle body; the hand lever is movably arranged in the lever groove.

The further technical scheme is as follows: the fixing mechanism comprises a ball for limiting the movement of the hand lever, a fixing piece for pushing the ball to be close to the hand lever and an elastic device for pushing the fixing piece to move; the elastic device is sleeved on the rod body; the fixing piece is movably arranged on the rod body.

The further technical scheme is as follows: a fixed block for compressing the ball is arranged in the fixed piece; the fixed block is arranged around the fixed piece.

The further technical scheme is as follows: a pin piece for pressing the hand lever is arranged in the lever groove; one end of the hand lever close to the lever groove is provided with a flat opening and a rolling groove; the rolling groove is formed around the hand lever; the pin piece compresses the flat opening; the ball is embedded in the rolling groove.

The further technical scheme is as follows: a first opening is arranged around the inner jacket; the first opening is formed around one end, close to the screw, of the inner jacket.

The further technical scheme is as follows: a clamping block is arranged at one end of the hand lever surrounding the screw; a clamping groove and a second opening are respectively formed at one end of the hand lever surrounding the screw; the clamping grooves are positioned between the adjacent clamping blocks; the clamping groove is communicated with the second opening.

The further technical scheme is as follows: an end cover is sleeved at the position, close to the handle, of the hand lever; the inner jacket is in threaded connection with the end cover.

The utility model has the advantages as follows: the utility model designs a screw holder adopts handle bar clamping screw. And a fixing mechanism is adopted to compress the hand lever. The screw holder brings the following effects: (1) the holding area is increased through the handle groove, so that the screw holder can be conveniently operated; (2) the ball is embedded into the rolling groove to limit the left and right movement of the hand lever, and the flat opening is tightly pressed by the pin piece to limit the axial rotation of the hand lever, so that the hand lever can be firmly connected to the handle; (3) the clamping block can firmly clamp the tail part of the screw through contraction of the first opening, and the clamping block can expand outwards when the clamping block clamps the tail part of the screw through the second opening, so that smooth clamping of the screw is guaranteed; (4) the screw can be screwed in only by rotating the handle, the handle rotates along the inner jacket, and the handle does not generate rotating friction on other parts of the human body to avoid damaging other parts of the human body; (5) the screw is clamped through the hand rod, so that the hand rod is prevented from being abraded with the tail of the screw, the screw can be firmly clamped through the contraction of the first opening, the screw is prevented from falling, and the operation risk is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a point a in fig. 1.

Fig. 3 is an enlarged view at B in fig. 1.

Fig. 4 is a schematic structural view of the inner jacket of the present invention.

In the figure: 1. a handle; 11. a rod body; 12. a handle body; 13. a shank slot; 14. a rod groove; 15. a pin member; 2. an inner jacket; 21. a first opening; 3. a handle; 31. flat mouth; 32. rolling a groove; 33. a clamping block; 34. a clamping groove; 35. a second opening; 4. an outer jacket; 5. a fixing mechanism; 51. a ball bearing; 52. a fixing member; 53. an elastic device; 54. a fixed block; 6. and (4) end covers.

Detailed Description

The following describes a specific embodiment of the present embodiment with reference to the drawings.

Fig. 1 is a schematic structural diagram of the present invention. Fig. 2 is an enlarged view of a point a in fig. 1. Fig. 3 is an enlarged view at B in fig. 1. Fig. 4 is a schematic structural view of the inner jacket of the present invention. Referring to fig. 1 and 4, the present invention discloses a screw holder. The direction of X in the figure does the utility model discloses structure schematic's upper end, the direction of Y in the figure does the utility model discloses structure schematic's right-hand member. The screw holder comprises a handle 1, an outer jacket 4, a hand rod 3 for clamping screws, an inner jacket 2 for clamping the hand rod 3 and a fixing mechanism 5 for pressing the hand rod 3. The inner jacket 2 is provided on the handle 1. The hand lever 3 is movably arranged in the inner jacket 2. The outer jacket 4 is fitted over the inner jacket 2. The fixing mechanism 5 is movably arranged on the handle 1.

The handle 1 comprises a rod body 11, a handle body 12 sleeved on the rod body 11, a handle groove 13 arranged on the handle body 12 and a rod groove 14 arranged in the rod body 11. A shank slot 13 opens around the shank body 12. The hand lever 3 is movably disposed in the lever groove 14.

The rod body 11 is arranged in the left-right direction. The handle body 12 is sleeved on the outer surface of the rod body 11 in the left-right direction. A shank pocket 13 is open around the outer surface of the shank body 12. A shank slot 14 opens at the left end of the shank body 12. The right end of the hand lever 3 moves along the lever groove 14.

When the grip body 12 is gripped, the grip area is increased by the grip groove 13, so that the screw holder can be operated conveniently.

The fixing mechanism 5 includes a ball 51 for restricting the movement of the hand lever 3, a fixing member 52 for pushing the ball 51 to approach the hand lever 3, and an elastic means 53 for pushing the fixing member 52 to move. The elastic device 53 is sleeved on the rod body 11. The fixing member 52 is movably disposed on the rod body 11.

Preferably, the elastic means 53 are springs. The elastic device 53 is sleeved on the left end of the rod body 11. The fixing member 52 is movably disposed at the left end of the rod body 11. The fixed member 52 is located on the left side of the elastic means 53. The ball 51 moves up and down along the left end of the rod body 11.

When the right end of the hand lever 3 is inserted into the lever groove 14, the elastic device 53 pushes the fixing member 52 to move along the lever body 11 from right to left, the fixing member 52 pushes the ball 51 to approach the hand lever 3, and the ball 51 is inserted into the hand lever 3 to complete the fixing of the hand lever 3.

A fixing block 54 for pressing the ball 51 is provided in the fixing member 52. A mounting block 54 is disposed about the mounting member 52.

A securing block 54 is disposed around the inner surface of the securing member 52. When the elastic device 53 pushes the fixing member 52 to move along the rod body 11 from right to left, the fixing member 54 presses the ball 51 downward, the ball 51 moves downward along the rod body 11, and the ball 51 is embedded in the hand lever 3. When the fixing member 52 is manually pushed to move along the rod body 11 from left to right, the fixing member 52 presses the elastic device 53, the fixing block 54 no longer presses the ball 51, the ball 51 is no longer embedded in the hand lever 3, and the hand lever 3 can be taken out. The hand lever 3 can be quickly mounted and dismounted by the fixing mechanism 5.

A pin 15 is arranged in the lever groove 14 and presses the hand lever 3. The hand lever 3 is provided with a flat opening 31 and a rolling groove 32 at one end close to the lever groove 14. A roller slot 32 opens around the hand lever 3. The pin 15 compresses the flat 31. The balls 51 are fitted into the rolling grooves 32.

The pin member 15 is disposed at an upper end in the rod groove 14 in the front-rear direction. The pin member 15 is located to the right of the ball 51. A roller groove 32 is opened around the outer surface of the hand lever 3. The flat mouth 31 is opened at the right end of the hand lever 3. The flat mouth 31 is located on the right side of the roller slot 32.

When the hand lever 3 is inserted into the lever groove 14, the lower end of the pin member 15 presses the flat mouth 31, and the ball 51 is inserted into the roller groove 32. The ball 51 is fitted into the rolling groove 32, whereby the side-to-side movement of the hand lever 3 can be restricted. The rotation of the axis of the hand lever 3 can be restricted by pressing the pin member 15 against the flat mouth 31. So that the handle bar 3 can be securely attached to the handle 1.

Around the inner jacket 2 a first opening 21 is provided. A first opening 21 is made around the end of the inner jacket 2 close to the screw.

The position of the hand lever 3 close to the handle 1 is sleeved with an end cover 6. The inner jacket 2 is screwed to the end cap 6.

A first opening 21 opens around the left end of the inner jacket 2. The end cover 6 is sleeved at the right end of the outer surface of the hand lever 3. The right end of the inner jacket 2 is screwed on the end cover 6.

A clamping block 33 is provided around one end of the hand lever 3 which clamps the screw. A clamping groove 34 and a second opening 35 are respectively arranged around one end of the hand lever 3 for clamping the screw. The clamping groove 34 is located between adjacent clamping blocks 33. The holding groove 34 communicates with the second opening 35.

Preferably, the screw is a cross screw. The clamping block 33 is disposed around the left end of the hand lever 3. A grip groove 34 is opened around the left end of the hand lever 3. A second opening 35 opens around the left end of the hand lever 3.

When the hand lever 3 needs to clamp the screw, the left end of the hand lever 3 is close to the screw, the left end of the hand lever 3 presses the tail of the screw, the clamping block 33 expands outwards, and the clamping block 33 clamps around the tail of the screw. The hand rod 3 moves from left to right along the inner part of the inner clamping sleeve 2, the first opening 21 contracts, the hand rod 3 is pressed by the left end of the inner clamping sleeve 2, and the tail part of the screw is clamped by the clamping block 33.

When the hand lever 3 needs to loosen the screw, the hand lever 3 moves from right to left in the inner clamping sleeve 2, the first opening 21 is opened, and the left end of the inner clamping sleeve 2 does not press the hand lever 3 any more. After the screw thread is screwed into the human body, the screw holder is pulled out. The clamping of the tail of the screw from the outside is achieved by the clamping block 33, so that the clamping block 33 can firmly clamp the tail of the screw by the contraction of the first opening 21. When the clamping block 33 clamps the tail part of the screw through the second opening 35, the clamping block 33 can be expanded outwards, and the smooth clamping of the screw is ensured.

After the screw holder holds the screw, the user holds the end cap 6 with one hand and rotates the handle 1 to the left with the other hand. So that the clamping block 33 carries the screw into the body. The screw extractor can complete the screwing of the screw only by rotating the handle 1, the handle 1 rotates along the inner jacket 2, the handle 1 does not generate rotating friction on other parts of the human body, and the other parts of the human body are prevented from being damaged.

The screw is clamped by the hand lever 3, so that the hand lever 3 and the tail part of the screw are prevented from being abraded. Through the contraction of the first opening 21, the hand lever 3 can firmly clamp the screw, the screw is prevented from falling off, and the operation risk is reduced.

In the present embodiment, the elastic device 53 is described as a spring, but the present invention is not limited thereto, and may be another elastic device within a range capable of functioning.

In the present embodiment, the screw is described as a cross screw, but the screw is not limited thereto, and may be another screw within a range capable of functioning.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made without departing from the basic structure of the invention.

Claims

1. A screw holder which is characterized in that: comprises a handle (1), an outer jacket (4), a hand lever (3) for clamping screws, an inner jacket (2) for clamping the hand lever (3) and a fixing mechanism (5) for pressing the hand lever (3); the inner jacket (2) is arranged on the handle (1); the hand lever (3) is movably arranged in the inner jacket (2); the outer jacket (4) is sleeved on the inner jacket (2); the fixing mechanism (5) is movably arranged on the handle (1).

2. The screw holder according to claim 1, characterized in that: the handle (1) comprises a rod body (11), a handle body (12) sleeved on the rod body (11), a handle groove (13) formed in the handle body (12) and a rod groove (14) formed in the rod body (11); the handle groove (13) is formed around the handle body (12); the hand lever (3) is movably arranged in the lever groove (14).

3. The screw holder according to claim 2, characterized in that: the fixing mechanism (5) comprises a ball (51) for limiting the movement of the hand lever (3), a fixing piece (52) for pushing the ball (51) to be close to the hand lever (3) and an elastic device (53) for pushing the fixing piece (52) to move; the elastic device (53) is sleeved on the rod body (11); the fixing piece (52) is movably arranged on the rod body (11).

4. A screw holder according to claim 3, wherein: a fixed block (54) for pressing the ball (51) is arranged in the fixed piece (52); the fixing block (54) is arranged around the fixing piece (52).

5. The screw holder according to claim 4, characterized in that: a pin piece (15) for pressing the hand lever (3) is arranged in the lever groove (14); one end of the hand lever (3) close to the lever groove (14) is provided with a flat opening (31) and a rolling groove (32); the rolling groove (32) is formed around the hand lever (3); the pin piece (15) compresses the flat mouth (31); the balls (51) are fitted into the rolling grooves (32).

6. The screw holder according to claim 1, characterized in that: a first opening (21) is arranged around the inner jacket (2); the first opening (21) is formed around one end, close to the screw, of the inner jacket (2).

7. The screw holder according to claim 1, characterized in that: a clamping block (33) is arranged around one end of the hand lever (3) for clamping the screw; a clamping groove (34) and a second opening (35) are respectively formed at one end of the hand lever (3) for clamping the screw; the clamping grooves (34) are positioned between the adjacent clamping blocks (33); the clamping groove (34) is communicated with the second opening (35).

8. The screw holder according to claim 1, characterized in that: an end cover (6) is sleeved at the position, close to the handle (1), of the hand lever (3); the inner jacket (2) is in threaded connection with the end cover (6).