CN209220483U - Device for fetching nail - Google Patents

Abstract

The utility model discloses a device for fetching nail, wherein the device for fetching nail includes an operating-controlling mechanism and a gripping body, the operating-controlling mechanism includes a control assembly and a transmission component；The gripping body includes an axis body, a control unit and a pickup folder, the pickup folder is adjustably set to the axis body by the control unit, wherein the axis body is adjustably set to the control assembly by the transmission component, the control assembly controls the working condition of the gripping body by the transmission component, to be easily removed the screw being fixed in patient bone.

Description

Device for fetching nail

Technical field

The utility model relates to a device for fetching nail more particularly to a kind of device for fetching nail for medical field.

Background technique

With the continuous improvement of medical technology, screw is widely used in the connection of bone, especially in surgical operation, spiral shell Nail is for damaging being connected and fixed for bone, to improve the therapeutic effect of patient.But it is used for when screw is fixedly installed in bone When the connection positioning of bone, when the wounded gets well, need to take out screw from bone, due to the connection of screw and bone Power needs to be clamped by the tool of profession during the separation process.Traditional nail-fetching device, can not be to screw during taking nail Complete stress is carried out, in other words, traditional nail-fetching device is unable to satisfy the power that screw is located away from bone to the active force of screw.Cause This be easy to cause Slipped bolt phenomenon during taking nail, damages to screw, and then increases the difficulty for taking nail.Once screw It is damaged, needs to handle screw using tools such as drill bits, such situation, which will increase, takes nail difficulty and operation risk, together When the health of patient can also be generated it is certain influence, once such as the above situation occur, will certainly be made to the spirit of patient At pressure, and further increase the pain of patient.

At present to increase the chucking power for taking nail process to nail-fetching device in industry field, increase manipulation hand in the end for taking nail User controls nail-fetching device to the active force of screw by manipulation hand handle.This mode is compared to the hand by user It goes the force mechanism of control nail-fetching device to further increase the chucking power of nail-fetching device, nail operating process is taken with easy user.This Although the nail-fetching device user of seed type is more easier to manipulate, nail-fetching device also improves the chucking power of screw, and this kind of takes Technological deficiency existing for nail device is, for some intractable screws, is still unable to reach reason by using this kind of nail-fetching device The chucking power thought, so that nail-fetching device clamping screw is located away from bone, and not enough or discontinuity is held to the stress of screw The case where easily causing and the structure of screw damaged, or even the stress problem due to nail-fetching device occur and cause screw breakage. Therefore, how to enhance the chucking power of traditional nail-fetching device, be that current nail-fetching device industry field needs to capture convenient for the force to screw Problem.

Utility model content

One of the utility model is designed to provide a device for fetching nail, wherein the device for fetching nail is able to a screw Chucking power is provided, an anti-screw tap active force is provided simultaneously, to enhance the device for fetching nail to the active force of the screw, thus just In the screw is taken out from the bone of patient.

Another of the utility model is designed to provide a device for fetching nail, wherein the device for fetching nail can help doctor Or the professional user such as nurse rapidly takes out the screw from the bone of patient, to be conducive to mitigate the pain of patient It is bitter.

Another of the utility model is designed to provide a device for fetching nail, wherein the device for fetching nail includes a catching device Structure, the gripping body is able to provide the chucking power to the screw, and a pickup folder of the gripping body is acted on In the screw, by manipulating the device for fetching nail, the pickup folder forms the anti-screw tap active force to the screw, is convenient for The clamping of the screw.

Another of the utility model is designed to provide a device for fetching nail, wherein the pickup folder is able to according to the spiral shell The installation site of nail or size to screw active force to be applied, adjust the phase that the pickup folder is located at the gripping body To position height, to enhance the adaptability of the device for fetching nail, to expand the adaptation range of the device for fetching nail.

Another of the utility model is designed to provide a device for fetching nail, wherein the device for fetching nail includes a manipulation machine Structure by manipulating the operating-controlling mechanism to adjust the relative position that the gripping body is located at the operating-controlling mechanism, and then controls The chucking power of the gripping body to the screw.

Another of the utility model is designed to provide a device for fetching nail, wherein the gripping body include an axis body and One control unit, the pickup folder and the control unit are respectively arranged at the axis body, and the control unit adjusts the pickup folder Positioned at the relative position of the axis body, to realize clamping of the pickup folder to the screw.

Another of the utility model is designed to provide a device for fetching nail, wherein the control unit include a regulating part and One drive rod, the regulating part is connected to the drive rod, and regulating part screw thread engagement is connected to the axis body, the tune Section part is connected through a screw thread and is subjected to displacement variation along the axis body, and then controls the other end for being connected to the drive rod Change in location of the pickup folder relative to the axis body.

Another of the utility model is designed to provide a device for fetching nail and its assemble method and its application method, Described in pickup folder there is one end, the end is in a taper, and the end is able to be arranged at the screw, with enhancing pair The active force of the screw.

Another of the utility model is designed to provide a device for fetching nail, wherein the end has a left-hand thread, institute It states after end is set to the screw, by manipulating the operating-controlling mechanism, so that the pickup folder drives the rotation of the screw, And then the screw is separated.

Another of the utility model is designed to provide a device for fetching nail, wherein the pickup folder has a connecting cavity, One connection end of the drive rod is able to be set to the connecting cavity, to realize the removable of the pickup folder and the drive rod Unload connection.

Another of the utility model is designed to provide a device for fetching nail, wherein the operating-controlling mechanism includes a control group Part and a transmission component, the gripping body are adjustably coupled to the control assembly, Jin Ersuo by the transmission component State the working condition that control assembly controls the gripping body by the transmission component.

Another of the utility model is designed to provide a device for fetching nail, wherein the control assembly include a shell and One manipulation part, the manipulation part are rotatably connected at the transmission component, and then control the gripping body in the shell It is subjected to displacement variation, a co-end of the shell is able to provide an active force to the pickup folder, so that the clamping Part forms an aid power to the screw.

Another of the utility model is designed to provide a device for fetching nail, wherein the control assembly and the transmission group Part forms a locking structure, and then the manipulation part controls the transmission component in the axial movement of the shell.

Another of the utility model is designed to provide a device for fetching nail, wherein the transmission component includes one first biography Moving part and one second driving member, second driving member are set to the shell, and first driving member is rotatably connected at Second driving member, and first driving member is connected to the gripping body, and then first driving member is relative to institute The change in location of the second driving member is stated to control the gripping body relative to the relative position of the shell and change.

Another of the utility model is designed to provide a device for fetching nail, wherein first driving member has an installation Hole, the manipulation part is movably disposed in the mounting hole, in order to the manipulation of user.

Another of the utility model is designed to provide a device for fetching nail, wherein second driving member has a sliding Slot, a fastener of first driving member is able to change in the sliding groove intrinsic displacement, to realize the first driving member phase Relative position variation for second driving member.

Another of the utility model is designed to provide a device for fetching nail, wherein second driving member has at least one Sliding groove, the shell are provided at least positioning piece, and the locating piece is able to matching and is set to the sliding groove, to realize State being fixedly connected for the second driving member and the shell.

Another of the utility model is designed to provide a device for fetching nail, wherein second driving member has a connection Hole, a gripping member of the control assembly are able to be removable installed in the connecting hole.

Another of the utility model is designed to provide a device for fetching nail, wherein the control assembly includes at least certain Position part, each locating piece is able to be set to an at least cotter way for the axis body, so that the axis body is formed with the shell Locking structure.

Another of the utility model is designed to provide a device for fetching nail, wherein the control assembly includes a gripping Part, the gripping member are arranged at the shell, and user increases the curable grip to the operating-controlling mechanism by the gripping member.

Another of the utility model is designed to provide a device for fetching nail, wherein the pickup folder is adjustably set to The axis body is satisfied user to the length adjustment of the pickup folder.

Another of the utility model is designed to provide a device for fetching nail, wherein the gripping body includes an elasticity Part, the pickup folder are set to the drive rod by the elastic component, when the drive rod is in the intracorporal opposite position of the axis It sets and is changed, at least a connection piece on the pickup folder is connected together in the link slot on the axis body, described in fixation Pickup folder be conditioned after angle, the elastic component make between the pickup folder and the axis body have reset function.

Another of the utility model is designed to provide a device for fetching nail, and the plurality of link slot is set respectively In the end, and the end has a screw thread, so the pickup folder by the axis body to form clamping action when, enhancing The active force of the pickup folder and the screw.

To achieve the above object one or more, a kind of device for fetching nail include an operating-controlling mechanism, the operating-controlling mechanism packet Include a control assembly and a transmission component；With a gripping body, the gripping body includes an axis body, a control unit and a clamping Part, the pickup folder are adjustably set to the axis body by the control unit, wherein the axis body passes through the transmission group Part is adjustably set to the control assembly, and the control assembly controls the work of the gripping body by the transmission component Make state.

In a preferred embodiment, the axis body has a cavity and a clamping end, and the control unit includes a transmission Bar, the drive rod is located at the cavity, and the drive rod is connected to the pickup folder, and the drive rod is controlled institute State relative position of the pickup folder relative to the axis body.

In a preferred embodiment, the control unit includes a regulating part, and the regulating part is adjustably set to institute Axis body is stated, and the regulating part is connected to the drive rod, the regulating part must control the pickup folder by the drive rod In the axial movement of the cavity.

In a preferred embodiment, the pickup folder has one end, and the end is in a pyramidal structure, and the end Portion has a left-hand thread, and the left-hand thread is set to the end.

In a preferred embodiment, the axis body has an at least link slot, and the pickup folder includes at least one connection Part, each connector extend outwardly from the pickup folder respectively, the pickup folder and the axis body by the connector with The link slot forms locking structure.

In a preferred embodiment, the control assembly includes a shell, and the shell has a co-end and one Containing cavities, the axis body are located at the containing cavities, and the co-end forms an active force to the clamping end, to realize folder The effect of holding.

In a preferred embodiment, the transmission component includes one first driving member and one second driving member, and described the Two driving members integrally extend the shell, and first driving member is rotatably connected at first described in second driving member Driving member is connected to the axis body, to control the axis body in the axial movement of the shell.

In a preferred embodiment, the shell includes that at least positioning piece, the axis body has an at least cotter way, institute When stating axis body and being connected to the shell, each locating piece engaging is set to the cotter way, to realize the axis body and the shell Locking connection.

In a preferred embodiment, first driving member includes an at least fastener, and second driving member has One movable chamber and a sliding groove, when first driving member is set to second driving member, the fastener is located at the cunning Dynamic slot, in the movable chamber activity, the fastener slides first driving member in the sliding groove.

In a preferred embodiment, first driving member has a mounting hole, and the control assembly includes a manipulation Part, the manipulation part are movably arranged at the mounting hole, and it is opposite to be controlled first driving member by the manipulation part In the location status of second driving member.

In a preferred embodiment, the control assembly includes a gripping member, and second driving member has a connection Hole, the gripping member are removable installed in the connecting hole.

In a preferred embodiment, the drive rod has a connection end, and the pickup folder has a connecting cavity, institute It states drive rod and is detachably connected by the connection end with the connecting cavity.

In a preferred embodiment, the gripping body includes an elastic component, and the connection end passes through an elastic component It is set to the connecting cavity, so that the pickup folder has reset function.

In a preferred embodiment, the clamping end has a screw thread, and the screw thread is located at the interior of the clamping end Wall.

Detailed description of the invention

Fig. 1 is the partial schematic diagram of the pickup folder of a preferred embodiment according to the present utility model.

Fig. 2 is the schematic diagram of the control unit of a preferred embodiment according to the present utility model.

Fig. 3 is the schematic diagram of the axis body of a preferred embodiment according to the present utility model.

Fig. 4 A and 4B are the overall schematics of the gripping body of a preferred embodiment according to the present utility model.

Fig. 5 is the assembling process schematic diagram of a preferred embodiment according to the present utility model.

Fig. 6 is the overall schematic of a preferred embodiment according to the present utility model.

Fig. 7 A is the clamp device operation schematic diagram of a preferred embodiment according to the present utility model.

Fig. 7 B and 7C are the device for fetching nail assembling and operation schematic diagram of a preferred embodiment according to the present utility model.

Specific embodiment

It is described below for disclosing the utility model so that those skilled in the art can be realized the utility model.It retouches below Preferred embodiment in stating is only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.It is retouched following The basic principle of the utility model defined in stating can be applied to other embodiments, deformation scheme, improvement project, etc. Tongfangs The other technologies scheme of case and the spirit and scope without departing from the utility model.

A kind of device for fetching nail as shown in Fig. 1 to Fig. 7 B, the device for fetching nail are able to be used to clamp to be installed on bone A screw w.The screw w is widely used in being fixedly connected for bone, so that the state of an illness of control patient, speeds recovery effect Rate.But when the screw w needs to be removed, the screw w and bone separation process are very difficult.Traditional nail-fetching device is pressing from both sides During taking the screw w, since the chucking power to the screw w is inadequate, the screw w can not be clamped and be located away from bone, very The screw w is damaged during to clamping.It needs once the screw w is damaged using special cutting tool It carries out that nail is taken to handle, increase is taken into the difficulty of nail and the risk of operation in this way, the health of patient can be had some impact on, such as It can be caused stress to the spirit of patient, and further increase the pain of patient.And it once needs to cut by way of cutting The screw w, then necessarily will cause the impurity such as clast, and the impurity such as these clasts are difficult to be cleaned, and there are clasts etc. for this Impurity, which has, is trapped in intracorporal risk, if the impurity such as clast are detained in vivo, wound is not only be easy to cause to restore slow, It but will cause to infect.But the device for fetching nail of the utility model is compared to traditional nail-fetching device, and the device for fetching nail is taking Nail process is able to further apply an active force to the screw w, to drive the screw w to be located away from bone.Another aspect institute Device for fetching nail is stated to be able to be installed on the position of bone according to the screw w or described in adjusting with the connection length of the screw w The length of the pickup folder of device for fetching nail enhances the chucking power to the screw w.

Specifically, the device for fetching nail includes an operating-controlling mechanism 10 and a gripping body 20 with reference to figures 1 through Fig. 7 C, The gripping body 20 is arranged at the operating-controlling mechanism 10, and user is by manipulating the operating-controlling mechanism 10 to control the folder The use state of mechanism 20 is taken, and then the gripping body 20 provides a chucking power to the screw w and controls the screw w It is located away from bone.With reference to attached drawing 5, Fig. 6, Fig. 7 B and Fig. 7 C, the operating-controlling mechanism 10 includes a manipulation component 11 and a transmission group Part 12, the manipulation component 11 are set to the transmission component 12, and the gripping body 20 is arranged at the control assembly 11, And then user is by manipulating the control assembly 11, the control assembly 11 due to the transmission component 12 drive mechanism, So that the gripping body 20 is able to that relative displacement variation occurs in the control assembly 11 by the transmission component 12, in turn Control the gripping body 20 is able to form the screw w one chucking power, and the device for fetching nail controls the screw w separation In bone.

Further, the control assembly 11 includes a shell 111 and a manipulation part 112, and the shell 111 has one Co-end 1111 and a containing cavities 1112, the gripping body 20 are removable installed in the containing cavities 1112, institute It states transmission component 12 and is adjustably set to the shell 111, the manipulation part 112 is arranged at the transmission component 12, and The working condition of the gripping body 20 is adjusted by the transmission component 12, is followed closely with realizing that the completion of the device for fetching nail takes Journey.Preferably, the shell 111 is in a tubular structure.

The one of the utility model is characterized in that the gripping body 20 is compared to traditional clamping apparatus, the gripping body 20 are not only able to grip the screw w, and generate an anti-screw tap active force to the screw w.In other words, institute It states gripping body 20 to be able to form a chucking power to the screw w, passes through the device for fetching nail turning relative to the screw w Dynamic, the gripping body 20 drives rotation of the screw w relative to bone；On the other hand, the gripping body 20 is right simultaneously The screw w forms an anti-screw tap active force, and the gripping body 20 controls in the screw w rotary course, anti-screw tap effect Power further controls the screw w and is located away from bone.User is by manipulating the operating-controlling mechanism 10, so that the gripping body 20 couples of screw w form a fixed force, and are connected together in the screw w, and then control the screw w in the rotation of bone Then separation.The gripping body 20 includes an axis body 21, a control unit 22 and a pickup folder 23, and the control unit 22 is set It is placed in the axis body 21, the pickup folder 23 is set to the axis body 21 by the control unit 22, manipulates the control unit 22 It controls the pickup folder 23 and an active force is formed to the screw w, to drive rotation of the screw w relative to bone, and make It obtains the screw w and is located away from bone.The pickup folder 23 is set to the gripping body 20 and makes the device for fetching nail to described Screw w's takes nail effect enhancing, and the device for fetching nail is not to be only only limited to the axis body 21 to the active force of screw w To the chucking power of the screw w, by the fixed screw w of chucking power and the device for fetching nail opposite bone is driven to rotate, and And the pickup folder 23 further forms an anti-screw tap active force to the screw w, in order to which the screw w is located away from bone.

It is noted that the axis body 21 has a cavity 211 and a clamping end 212, the axis body 211 is in one Shape structure, the clamping end 212 integrally extend the cavity 211.Wherein the cavity 211 runs through the axis body 21, institute It states clamping end 212 and is located at 21 front end of axis body, and the clamping end 212 is connected to the cavity 211.The control unit 22 wraps A regulating part 221 and a drive rod 222 are included, the drive rod 222 is removable installed in the cavity 211, the adjusting Part 221 is arranged at the rear end of the axis body 21, and the regulating part 221 is connected to the drive rod 222, the regulating part 221 are controlled the drive rod 222 slides in the cavity 211.Preferably, the drive rod 222 has certain predetermined Length, the drive rod 222 are arranged at the axis body 21, are threadedly connected to the axis body 21, institute by the regulating part 221 It states regulating part 221 and in the relative motion of the axis body 21 drive rod 222 is axially moved in the cavity 211, it is real The existing pickup folder 23 is telescopically connected to the axis body 21, to adjust position of the pickup folder 23 relative to the screw w It sets or the depth of a connecting cavity of the screw is adjusted.

It is noted that the regulating part 221 is threadingly attached to the axis body 21, and then the regulating part 221 The axis body 21 is slidably connected to by helicitic texture.By rotating the regulating part 221, so that the regulating part 221 It is subjected to displacement variation in the axis body 21, and then is drivingly connected the drive rod 222 in the regulating part 221 in the shell Variation is subjected to displacement in body 111.Further, the regulating part 221 controls the pickup folder 23 by the drive rod 222 Relative to the change in location of the axis body 21, when the regulating part 221 is along 21 forward slip of axis body, the pickup folder 23 Extend outwardly relative to the axis body 21；When the regulating part 221 is slided backward along the axis body 21, the pickup folder 23 Relative to the axis body 21 to contract.The related technical personnel of this field are interpreted as, the regulating part 221 and the axis Adjustment connecting structure between body 21 cannot function as the limitation to the content of the present invention, and the regulating part 221 is able to by not Same implementation method is to realize the adjustable connection with the axis body 21.

It is noted that the axis body 21 is arranged at the shell 111, the cavity 211 is located at the containing cavities In 1112, wherein the pickup folder 23 is located at the co-end 1111, the pickup folder 23 is in the co-end 1111 Exterior space.When the axis body 21 is adjustably set to the shell 111 by the manipulation part 112, the folder Pickup 23 is telescopically arranged in the co-end 1111, and then the co-end 1111 is able to the formation of sandwich part 212 One clamping force, when the device for fetching nail acts on the screw w, work of the clamping end 212 in the co-end 1111 A chucking power is formed with the lower ring side to the screw w, to be fixed to the screw w.On the other hand, user It is able to screw w described in the snap-in function power drive according to the co-end 212 to the screw w in use in bone The rotation of head, is located away from the bone convenient for the screw w.

It is noted that the clamping end 212 is in a frustum cone structure, the size at the clamping end 212 is greater than the card End 1111 is closed, and then when the clamping end 212 is stretched when the co-end 1111, the co-end 1111 is to described Clamping end 212 forms an active force, so that the clamping end 212 is in contraction state, the screw w is able to be held in described Clamping end 212.Further, the openings of sizes at the clamping end 212 has certain predetermined size, to meet to different size institutes The clamping effect of screw w is stated, on the other hand, the clamping end 212 is preferably circular to match the screw w.Due to the spiral shell Following closely w has certain size standard in industry field, therefore the openings of sizes at the clamping end 212 is in the co-end 1111 Under the action of be able to match the size of the screw w, but the utility model technical field personnel are interpreted as, the clamping end 212 openings of sizes cannot function as the limitation to the content of the present invention, and the producer or user are able to very according to gripped object Size adjusts the openings of sizes at the different size of clamping end 212.

Preferably, the clamping end 212 has an at least link slot 2121, and each link slot 2121 is according to certain predetermined Gap is set to the clamping end 212, due to the design structure of the link slot 2121,1111 pairs of co-end institute by interval The better stress in clamping end 212 is stated, the clamping end 212 is easier under the effect of the co-end 1111 in contraction-like State.In other words, the clamping end 212 due to each link slot 2121 make its have more good shrinkage, the folder It closes end 212 and is more easier stress in the co-end 1111, convenient for the operation of user.The wherein link slot 2121 Quantity is preferably three, but those skilled in the art are interpreted as, and the link slot 2121 is set to the number at the clamping end 212 Amount cannot act on the limitation to the content of the present invention.

More into one, the clamping end 212 has a screw thread 2120, is set to the clamping end in the screw thread 2120 212 inner sidewall, when the clamping end 212 acts on the screw w, the screw thread 2120 is enhanced the clamping end 212 With the chucking power between the screw w, the clamping end 212 is in the screw w clamping process, due to the screw thread 2120 Structure avoids sliding phenomenon.

It is noted that the pickup folder 23 has one end 231, the end 231 extends the pickup folder 23 Front end, and the end 231 have certain predetermined length.Preferably, the end 231 is in a pyramidal structure, the end 231 are able to the installation cavity that insertion is connected to the screw w, and then the pickup folder 23 acts on the screw w, the folder Pickup 23 rotates under the driving of the manipulation part 112 according to certain predetermined direction, and the pickup folder 23 drives the screw w to exist The rotation of bone junction, and it is located away from bone.The folder of the gripping body 20 being technically characterized in that on the axis body 21 It closes end 212 and one chucking power is formed to the screw w under the action of shell 111, and the end 231 is simultaneously to the spiral shell It follows closely w and forms a driving force, the process of bone is located away from convenient for the screw w.

Further, the end 231 is able to be selected according to by the form and dimension of the default mounting hole of clamping object The variation of selecting property, the end 231 with for various sizes of interior hexagonal configuration or other matched shapes, to meet the end The insertion of portion 231 is set to by clamping object.Preferably, the end 231 has a left-hand thread 2311, and the end 231 is set to institute The mounting hole of screw w is stated, the left-hand thread 2311 enhances the connection of the end 231 and screw w, and enhances described in driving The active force of screw w rotation.

It is noted that the pickup folder 23 has a connecting cavity 233, the drive rod 222 has a connection end 2221, the connecting cavity 233 has the predetermined depth to match with the connection end 2221, in order to the connection end 2221 insertions are connected to the connecting cavity 233, and then the pickup folder 23 is removably attachable to the drive rod 222, with reality The replacement of the existing different types of pickup folder 23.Relevant technical staff in the field is interpreted as, the drive rod 222 and institute Stating the adjustable connection type between pickup folder 23 cannot function as limiting the content of the present invention, the connection end 2221 and The connecting cavity 233 is by the threaded connection that matches, or snaps connection mode.

Preferably, there is the pickup folder 23 at least a connection piece 232, each connector 232 to be located at the clamping Part 23 after the pickup folder 23 is connected to the drive rod 222, rotates the pickup folder 23 and the connector 232 is engaged It is connected to the link slot 2121, to realize the connection of the pickup folder 23 and the drive rod 222, and then the pickup folder 23 The connection according to the pickup folder 23 with the drive rod 222 is able to positioned at the relative position of the axis body 21 and is adjusted.Change and Yan Zhi, after the pickup folder 23 is fixedly connected with clamping end 212, the regulating part 221 controls pickup folder 23 in the axis body 21 Axial movement, the pickup folder 23 is telescopically arranged in the axis body 21, the regulating part 221 avoided to control the clamping When the state of part 23, so that the pickup folder 23 rotates in the cavity 211, clamping process is influenced.The pickup folder 23 exists In use process, user is able to the different depth according to the screw w mounting hole, adjusts the pickup folder 23 from the shell 21 outwardly extending length, in order to which the end 231 matching is embedded in the screw w.

It is noted that the transmission component 12 includes one first driving member 121 and one second driving member 122, it is described Second driving member 122 integrally extends the shell 11, and first driving member 121 is threadingly attached to second transmission Part 122, the axis body 21 are connected to first driving member 121 by manipulating first driving member 121 along described second The axial movement of driving member 122, and then first driving member 121 drives the axis body 21 in institute by the drive rod 222 The axial movement in shell 11 is stated, and then the co-end 1111 forms clamping action to the clamping end 212.It is described simultaneously Pickup folder 23 and the axis body 21 form locking structure, first driving member 121 control simultaneously the pickup folder 23 relative to The motion state of the axis body 21.

Preferably, first driving member 121 has a mounting hole 1211, and the manipulation part 112 is movably disposed in The mounting hole 1211, the manipulation part 112 are controlled first driving member 121 relative to second driving member 122 Sliding.Wherein the manipulation part 11 has both ends, and the manipulation part 11 slides in the mounting hole 1211, Ke Yicong One end of the manipulation part 11 slides into the other end, in order to which user more preferably exerted a force to first driving member 121 Journey.

Further, first driving member 121 includes a fastener 1212, and the fastener 1212 is from described first The ring side of driving member 121 extends outwardly.Second driving member 122 has a movable chamber 1221 and a loose slot 1222, described Loose slot 1222 has certain predetermined length.When first driving member 121 is slidably coupled to second driving member 122, The fastener 1212 is located at the loose slot 1222, to realize first driving member 121 in second driving member 122 Opposite sliding, the fastener 1211 are able to slide in the loose slot 1222, and then before first driving member 121 End moves in the movable chamber 1221.

It is noted that there is the shell 111 at least positioning piece 1113, each locating piece 1113 to be located at The inner wall of the shell 111, and it is located at the tail end of the shell 111.The axis body 21 has an at least cotter way 213, each described 213 compartment of terrain of cotter way is set to the inner sidewall of the axis body 21, and the locating piece 1113 is opposite with the position of the cotter way 213 It answers, when the axis body 21 is arranged at the shell 111, the axis body 21 is driven to rotate in the containing cavities 1112, it is described Locating piece 1113 is able to insertion and is connected to the cotter way 213, and then the axis body 21 is connected together in the shell 11.The behaviour When control 112 drives the gripping body 20 to rotate, company of the axis body 21 due to the locating piece 1113 and the cotter way 213 It connects without rotating, and then the manipulation part 112 drives the relatively described shell 11 of the gripping body 20 elastic It is axially moved.

It is noted that first driving member 121 is the sliding in the distance that second driving member 122 slides The length of slot 1223, i.e., shift length of the described pickup folder 23 relative to the shell 111.The distance is to realize the shell The clamping effect at 111 pairs of clamping ends 212, and make what the end 231 met the different screws to take nail process.It is worth One is mentioned that, the control assembly 11 includes a gripping member 113, and the gripping member 113 is arranged at second driving member 122, the proficiency of user manipulates the manipulation part 112, gripping member 113 described in another hand grip, and the gripping member 113 is able to Increase user to the active force of the device for fetching nail, convenient for preferably applying active force to the manipulation part 112.

Preferably, second driving member 122 has a connecting hole 1223, and the gripping member 113 is removably disposed In the connecting hole 1223, the gripping member 113 is removably connected to the connecting hole 1223, but ability by helicitic texture Domain related technical personnel are interpreted as, the connection type between the gripping member 113 and second driving member 122 not as Limitation to the content of the present invention.

It is noted that the device for fetching nail is not to be limited the clamping being used in Medical screw, taken due to described The structure of spike devices designs, and the device for fetching nail is able to be designed to different size model, to meet different behaviours in service.Example Such as, the device for fetching nail is able to be applied to the clamping in other field to screw, and the device for fetching nail is initially formed one to screw Chucking power, while the pickup folder 23 drives the rotating separation of the screw, therefore is improved the efficiency for clamping the screw.

As seen in figure 7 c, user manipulates the use process of the device for fetching nail, and user is according to the ruler of screw to be clamped The very little opposite development length for adjusting the pickup folder 23 and being located at the axis body 21, in order to which the end 231 insertion is connected to institute State the mounting hole of screw w.User is turned in the mounting hole 1211 by operating the manipulation part 113, the manipulation part 113 It is dynamic, and then first driving member 121 is subjected to displacement variation along second driving member 122, the clamping end 212 acts on The ring side of the screw, and the axis body 21 is in the axial movement of the shell 111, so that the shell 111 is to the clamping End 212 forms an active force, so that the clamping end 212 forms a chucking power to the screw w, to realize the gripping body The fixation of 20 couples of screw w.On the other hand, first driving member 121 drives the clamping by the drive rod 222 End 212 acts on the screw w, and the manipulation part 112 drives first driving member 121 relative to second driving member 122 rotations, and then the drive rod 222 drives the rotation of the pickup folder 23, so that work of the screw w in reverse rotational force Bone is located away under.

It should be understood by those skilled in the art that foregoing description and the embodiments of the present invention shown in the drawings are only used as It illustrates and is not intended to limit the utility model.The purpose of this utility model completely and effectively realizes.The function of the utility model Energy and structural principle show and illustrate in embodiment, under without departing from the principle, the embodiments of the present invention Can there are any deformation or modification.

Claims (14)

1. a kind of device for fetching nail characterized by comprising

One operating-controlling mechanism, the operating-controlling mechanism include a control assembly and a transmission component；With

One gripping body, the gripping body include an axis body, a control unit and a pickup folder, and the pickup folder passes through the control Portion processed is adjustably set to the axis body, wherein the axis body is adjustably set to the control by the transmission component Component, the control assembly control the working condition of the gripping body by the transmission component.

2. device for fetching nail as described in claim 1, wherein the axis body has a cavity and a clamping end, the control unit packet A drive rod is included, the drive rod is located at the cavity, and the drive rod is connected to the pickup folder, and the drive rod obtains To control relative position of the pickup folder relative to the axis body.

3. device for fetching nail as claimed in claim 2, wherein the control unit includes a regulating part, the regulating part is adjustably It is set to the axis body, and the regulating part is connected to the drive rod, the regulating part must control institute by the drive rod Pickup folder is stated in the axial movement of the cavity.

4. device for fetching nail as claimed in claim 3, wherein the pickup folder has one end, the end is in a taper knot Structure, and the end has a left-hand thread, the left-hand thread is set to the end.

5. device for fetching nail as claimed in claim 4, wherein the axis body has an at least link slot, the pickup folder includes extremely Few a connection piece, each connector extend outwardly from the pickup folder respectively, and the pickup folder and the axis body are described in Connector and the link slot form locking structure.

6. device for fetching nail as claimed in claim 5, wherein the control assembly includes a shell, the shell has an engaging End and a containing cavities, the axis body are located at the containing cavities, and the co-end forms an active force to the clamping end, To realize clamping action.

7. device for fetching nail as claimed in claim 6, wherein the transmission component includes one first driving member and one second transmission Part, second driving member integrally extend the shell, and first driving member is rotatably connected at second transmission First driving member described in part is connected to the axis body, to control the axis body in the axial movement of the shell.

8. device for fetching nail as claimed in claim 7, wherein the shell includes that at least positioning piece, the axis body has at least One cotter way, when the axis body is connected to the shell, each locating piece engaging is set to the cotter way, with realize the axis body with The locking of the shell connects.

9. device for fetching nail as claimed in claim 8, wherein first driving member includes an at least fastener, described second is passed Moving part has a movable chamber and a sliding groove, when first driving member is set to second driving member, the fastener position In the sliding groove, in the movable chamber activity, the fastener slides first driving member in the sliding groove.

10. device for fetching nail as claimed in claim 9, wherein first driving member has a mounting hole, the control assembly Including a manipulation part, the manipulation part is movably arranged at the mounting hole, is controlled described first by the manipulation part Location status of the driving member relative to second driving member.

11. device for fetching nail as claimed in claim 10, wherein the control assembly includes a gripping member, second driving member With a connecting hole, the gripping member is removable installed in the connecting hole.

12. device for fetching nail as claimed in claim 11, wherein the drive rod has a connection end, the pickup folder has One connecting cavity, the drive rod are detachably connected by the connection end with the connecting cavity.

13. device for fetching nail as claimed in claim 12, wherein the gripping body includes an elastic component, the connection end is logical It crosses an elastic component and is set to the connecting cavity, so that the pickup folder has reset function.

14. device for fetching nail as claimed in claim 13, wherein the clamping end has a screw thread, the screw thread is located at described The inner wall at clamping end.