CN116459046A

CN116459046A - Clamp holder

Info

Publication number: CN116459046A
Application number: CN202310614062.0A
Authority: CN
Inventors: 江伟; 贾月梅; 毛联甲
Original assignee: Tianyan Medical Equipment Co ltd
Current assignee: Tianyan Medical Equipment Co ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-07-21

Abstract

The invention relates to the technical field of medical equipment, and discloses a clamp holder, which comprises: a main body; the pressing surfaces are arranged to be capable of elastically displacing or deforming in the directions of approaching the main body and separating from the main body and are used for forming pressing force on the end face of the object to be clamped, which is close to the main body; the hook piece is arranged to be capable of generating displacement relative to the main body and is used for forming pulling force on the end face, far away from the main body, of the object to be clamped; and the needle columns are arranged to be capable of displacing in the directions close to the main body and far away from the main body, so that the end face of the needle column far away from one end of the main body is formed into a pressing surface. The invention has the technical effect of being capable of being attached to almost all the surfaces of the condyle prosthesis on the market, and also has the technical effect of being capable of changing the angle or gear of the hook according to the using habit of doctors.

Description

Clamp holder

Technical Field

The invention relates to the technical field of medical instruments, in particular to a clamp holder.

Background

Femoral condyle prosthetic replacement is a very important part of total knee arthroplasty. When a doctor selects a condyle prosthesis with the size corresponding to the femoral head of a patient, firstly, the condyle prosthesis is clamped by a condyle holding device, and after the condyle prosthesis is placed at a position to be installed, the condyle holding device is knocked by a hammer or other tools; after the condyle prosthesis is initially fixed, the condyle holding device is released and replaced by the condyle hitting device, and then the condyle hitting device is knocked until the condyle prosthesis is completely attached to the part to be installed.

The traditional condyle-holding device is basically a clamping mechanism, and the clamping mechanism comprises two symmetrically arranged locking hooks which are matched with and clamp the condyle prosthesis. In the operation, after the two lock hooks clamp the condylar prosthesis and are driven in, the condylar holding device cannot be used for completely installing the condylar prosthesis to a required position due to the obstruction of the lock hooks, so that the conventional condylar holding device can only be used for initially fixing the condylar prosthesis at a placement position, then the condylar holding device is released, and then the condylar hitting device is replaced to hit the condylar prosthesis again until the condylar prosthesis is completely attached to the femur. Therefore, after the condyle holding device is used for holding the condyle prosthesis and driving into a placement position, the condyle holding device is released again and the condyle hitting device is replaced for knocking again, so that the operation is very complicated and inconvenient, the condyle prosthesis is easy to deviate in the process of replacing the condyle hitting device, the accuracy of the placement position of the condyle prosthesis is difficult to guarantee, and the operation treatment effect is influenced.

In order to solve the above-mentioned defect, the prior art has designed the middle condylar holder, for example the middle condylar holder of a kind of disclosed patent application number CN202111476959.9, it utilizes piece a to produce the pressure action to the buckling convex surface of femoral condyle prosthesis or prosthesis examination mould, utilize couple b to produce the hook locking effect to the buckling concave surface of femoral condyle prosthesis or prosthesis examination mould, under pressure action and hook locking effect, form the centre gripping of two-sided to femoral condyle prosthesis or prosthesis examination mould, realize holding in the middle of femoral condyle prosthesis or prosthesis examination mould, avoid the hindrance of latch hook to the prosthesis in the traditional condylar holder, realized not having to change other apparatuses and just can be in place with the effect of prosthesis installation.

But this medial condyle retainer also has drawbacks: firstly, the curvature of the curved surface side of the block a is determined, and the block a cannot be adaptively adjusted according to the buckling convex surface of the prosthesis, so that the block a cannot be suitable for most of the condylar prostheses on the market; secondly, the hook b is fixed when compared with the circumferential angle of the main body of the condyle-holding device, and cannot be adjusted according to the use habit of the prosthesis and doctors, so that the middle condyle-holding device cannot adapt to most of the condyle prostheses on the market.

For the above reasons, the present application provides a gripper to solve the drawbacks of the prior art.

Disclosure of Invention

The present invention is directed to a holder for solving the above-mentioned problems.

In order to solve the technical problems, the invention provides the following technical scheme: a holder, comprising: a main body; the pressing surfaces are arranged to be capable of elastically displacing or deforming in the directions of approaching the main body and separating from the main body and are used for forming pressing force on the end face of the object to be clamped, which is close to the main body; and the hook piece is arranged to be capable of displacing relative to the main body and is used for forming pulling force on the end face of the object to be clamped far away from the main body.

Preferably, a gripper further comprises: the needle columns are arranged to be capable of displacing in the directions of approaching the main body and separating from the main body, so that the end face of one end of the needle column, which is far from the main body, is formed into a pressing surface; and the plurality of first elastic pieces are in one-to-one correspondence with the plurality of spike posts and are used for applying elastic deformation force to the spike posts in the directions of approaching the main body and separating from the main body.

Preferably, the spike further comprises an elastic pad disposed at an end of the spike remote from the main body.

Preferably, the main body comprises a containing cavity which is concavely arranged on the main body, the first elastic piece and the needle column are arranged in the containing cavity, and one end of the needle column, which is close to the pressing surface, extends out of the containing cavity.

Preferably, a gripper further comprises: the end cover seals the opening end of the accommodating cavity, so that the needle column passes through the end cover and extends out of the accommodating cavity, and the end cover is respectively arranged in a sealing way with the accommodating cavity and the needle column; and the main body is provided with a first through hole which is communicated with the inside and the outside of the accommodating cavity, and the pressure relief screw is connected in the first through hole.

Preferably, the spike comprises a stop arranged in the middle of the spike, the stop is arranged in the accommodating cavity, and when the first elastic piece is in a free state, the stop is abutted on the end cover.

Preferably, the first elastic piece is a cylindrical compression spring, and is sleeved on the needle column, one end of the first elastic piece is abutted on the stop, and the other end of the first elastic piece is abutted on the inner wall of the accommodating cavity.

Preferably, a gripper further comprises: the rod piece is arranged to be capable of displacing relative to the main body, and the hook piece is connected to one end of the rod piece, so that the hook piece can displace along with the rod piece; and a fastener for locking the rod member with the main body when necessary.

Preferably, the main body is provided with a column hole, and the rod piece passes through the column hole; the fastener comprises a lock nut which is used for being in spiral connection with a thread section arranged on the rod piece when necessary, and the rod piece and the main body are locked when interaction force is generated between the lock nut and the main body.

Preferably, the joint of the column hole and the end face of the main body is concavely provided with a marginal groove towards the side of the main body; the fastener also comprises a fitting which is integrally arranged with the locking nut and is matched with the edge groove.

Preferably, the rod piece is provided with a faceted segment, and the faceted segment comprises at least one faceted surface; the holder further includes a resilient pressing assembly for providing a continuous resilient pressing action to the faceted segment.

Preferably, the rod is further provided with a cylindrical section, and when the rod is displaced to the position where the cylindrical section corresponds to the elastic pressing assembly, the pressing action of the elastic pressing assembly on the rod is eliminated.

Preferably, the elastic pressing assembly comprises: one end of the button is sleeved on the rod piece through the main body, and the other end of the button is exposed outside the main body; and the second elastic piece is used for providing elastic pressing force for the button so that the button can continuously press the rod piece.

Preferably, a holder further comprises a locking assembly for locking the button when necessary.

Preferably, the button comprises: the first part is arranged perpendicular to the central axis of the main body, a second through hole for the rod to pass through is formed in the first part, the first part extends into the main body and is sleeved on the rod, and a pressing pin for pressing the rod is transversely arranged in the second through hole; and a second portion disposed parallel to the central axis of the main body, the second portion being exposed outside the main body and integrally disposed with the first portion; the second elastic piece is a cylindrical compression spring, and the cylindrical compression spring is in a compressed state and is abutted between the second part and the main body.

Preferably, the locking assembly comprises an eccentric knob, the eccentric knob is rotatably arranged on the main body, when the eccentric knob rotates to a position which is staggered with the second part at a position which is shorter than the center of the eccentric knob, the button can displace in a direction which is close to the main body and far away from the main body, and when the eccentric knob rotates to a position which is intersected with the second part at a position which is longer than the center of the eccentric knob, the button is locked.

Preferably, the locking assembly further comprises a pin rod fixed to the main body, and a rod body of the pin rod is placed in a rim groove formed along a rim side of the eccentric knob.

Preferably, the locking assembly further comprises a spherical member and a third elastic member, an arc-shaped groove is formed in one surface of the eccentric knob, which is close to the main body, a column groove is formed in one surface of the main body, which is close to the eccentric knob, the third elastic member is arranged in the column groove, and the spherical member is propped between the third elastic member and the eccentric knob.

Compared with the prior art, the invention has the beneficial effects that

1. The clamp disclosed by the invention forms an elastic pressing surface by utilizing the design of the needle column and the spring, so that the pressing surface can be attached to the surface of almost all the condylar prostheses (including symmetrical or asymmetrical structures) on the market, and the surface attached to the buckling convex surface of the femoral condylar prosthesis does not need to be replaced, namely the design has universal attachment degree;

2. according to the clamp disclosed by the invention, the circumferential angle of the hook piece can be replaced by utilizing the elastic pressing component, so that the use habit of different doctors can be met, the angle of the hook piece can be replaced before clamping action, and the convenience of operation of the doctors can be fully exerted;

3. the clamp holder for the femoral condyle prosthesis disclosed by the invention has the advantages that four angles are designed for the circumferential angle of the hook piece, the four angles are used as a first gear by 90 degrees, and almost all the condyle prostheses on the market can achieve the locking hook matching effect;

4. according to the clamp disclosed by the invention, the locking nut and the main body are in taper fit, so that the locking strength is high, the locking reliability is high, the loosening phenomenon is not easy to occur, meanwhile, the screw thread section and the locking nut adopt screw threads, compared with the conventional screw threads, the number of rotation turns can be reduced, and the screw thread strength is relatively better.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:

FIG. 1 is a perspective view of a prior art medial condyle retainer;

FIG. 2 is an elevation view of a prosthetic condyle retainer in accordance with an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a prosthetic condyle retainer in an embodiment of the present invention;

FIG. 4 is a perspective view of a portion of the structure of a prosthetic condyle-holder in accordance with an embodiment of the present invention;

in the figure:

the device comprises a main body 100, a column 110, a column hole 111, a rim groove 112, a through groove 113, a column groove 114, an upper end surface 115, a block 120, a containing cavity 121, a first through hole 122 and a gap 130;

a hook 200;

the device comprises a pressing mechanism 300, a needle column 310, a pressing surface 311, an elastic pad 312, a stop 313, a first elastic piece 320, an end cover 330 and an end cover 330;

rod 400, thread segment 410, land segment 420, cylindrical segment 430;

a handle 500;

fastener 600, lock nut 610, fitting 620;

an elastic pressing assembly 700, a button 710, a first portion 711, a second through hole 712, a pressing pin 713, a second portion 714, and a second elastic member 720;

locking assembly 800, eccentric knob 810, rim groove 811, arcuate groove 812, pin 820, ball 830, and third spring 840.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the existing condyle-holding device, as shown in fig. 1, as disclosed in patent application number CN202111476959.9, a block a is utilized to generate a pressing action on the buckling convex surface of a femoral condyle prosthesis or a prosthesis test mold, a hook b is utilized to generate a hooking and locking action on the buckling concave surface of the femoral condyle prosthesis or the prosthesis test mold, and under the pressing action and the hooking and locking action, double-sided clamping is formed on the femoral condyle prosthesis or the prosthesis test mold, so that the middle holding of the femoral condyle prosthesis or the prosthesis test mold is realized, the obstruction of a locking hook on the prosthesis in the traditional condyle-holding device is avoided, and the effect that the prosthesis can be installed in place without replacing other instruments is realized. But this medial condyle retainer also has drawbacks: firstly, the curvature of the curved surface side of the block a is determined, and the block a cannot be adaptively adjusted according to the buckling convex surface of the prosthesis, so that the block a cannot be suitable for most of the condylar prostheses on the market; secondly, the hook b is fixed when compared with the circumferential angle of the main body of the condyle-holding device, and cannot be adjusted according to the use habit of the prosthesis and doctors, so that the middle condyle-holding device cannot adapt to most of the condyle prostheses on the market.

Based on the above drawbacks, the present application provides embodiments: a multi-compatible femoral condyle prosthesis condyle retainer, which is a best implementation of a clamp.

Specifically, as shown in fig. 2, which is a front view of the prosthetic condyle retainer, the prosthetic condyle retainer includes a main body 100, in this embodiment, the main body 100 includes a post 110 for facilitating gripping, and two blocks 120 corresponding to two flexion convexities of the femoral condyle prosthesis, respectively, wherein the two blocks 120 are located at the same end of the post 110, are integrally formed with the post 110 to form a symmetrical structure, and form a gap 130 between the two blocks 120.

Further, as shown in fig. 2, the present prosthetic condyle-holder further includes a hook 200 for providing a hooking action to the flexion concave surface of the femoral condyle, wherein the hook 200 is positioned at the gap 130, i.e., corresponding to the intercondylar position of the femoral condyle prosthesis, and the hook 200 may extend through the intercondylar toward the flexion concave surface of the femoral condyle prosthesis to provide a pulling force to the flexion concave surface.

Further, as shown in fig. 2, the prosthetic condyle-holding device further comprises a pressing mechanism 300 for forming a pressing action on the buckling convex surface of the femoral condyle, wherein the pressing mechanism 300 cooperates with the hook 200 to realize the condyle-holding action; in order to make the pressing mechanism 300 adapt to the buckling convex surfaces with different curvatures, as shown in fig. 3, which is a cross-sectional view of the prosthesis condyle retainer, the pressing mechanism 300 is shown to include a plurality of pins 310, wherein the pins 310 are divided into two parts and respectively correspond to the two block pieces 120, so as to correspond to the two buckling convex surfaces of the femoral condyle prosthesis, the pins 310 are arranged at one end of the block piece 120 far away from the post 110, and meanwhile, the extending direction of the pins 310 is arranged in the same direction as the extending direction of the post 110, so that the pins 310 form a plurality of pressing surfaces 311 at one end far away from the block piece 120; in addition, the pressing mechanism 300 further includes a plurality of first elastic members 320, the plurality of first elastic members 320 are in one-to-one correspondence with the plurality of spike posts 310, and are configured to apply elastic deformation force to the spike posts 310 in a direction approaching the block 120 and away from the block 120, and when the plurality of spike posts 310 meet the curved convex surface of the femoral condyle, the spike posts 310 are retracted under pressure, so that the plurality of pressing surfaces 311 can elastically displace in a direction approaching the main body and away from the main body, thereby forming a curved surface fitting the curved convex surface.

Further, as shown in fig. 3, each pin 310 further includes a resilient pad 312, in this embodiment, the resilient pad 312 is made of rubber and is fixedly disposed at an end of the pin 310 away from the block 120 to avoid scratching the femoral condyle surface.

Further, as shown in fig. 3, the first elastic member 320 and the spike 310 are accommodated in the block 120, specifically, each block 120 includes an accommodating cavity 121 concavely opened towards itself, an opening of the accommodating cavity 121 faces the spike 310, the first elastic member 320 and the spike 310 are disposed in the accommodating cavity 121, and an end of the spike 310 close to the pressing surface extends out of the accommodating cavity, so that the whole pressing mechanism 300 occupies a smaller volume, so as to facilitate the surgical operation at the narrow acetabular fossa.

Further, on the basis of the above description, after the plurality of pressing surfaces 311 form a curved surface fitting the buckling convex surface, the spike 310 is always acted by the first elastic member 320, so that the curved surface adapting to the buckling convex surface is unstable, the following operation is inconvenient, and the clamping is unstable, therefore, as shown in fig. 3, the pressing mechanism 300 further comprises two end covers 330, the two end covers 330 respectively seal the open ends of the two accommodating cavities 121, so that the spike 310 passes through the end covers 330 and extends out of the accommodating cavities 121, and in this embodiment, the end covers 330 are made of rubber, so that the technical effect of sealing between the accommodating cavities 121 and the spike 310 is realized; meanwhile, the pressing mechanism 300 further comprises a pressure release screw 340, the block 120 is provided with a first through hole 122 for communicating the inside and the outside of the accommodating cavity 121, and the pressure release screw 340 is connected in the first through hole 122; after the bonding curved surface formed by the plurality of pressing surfaces 311 is formed, the pressure relief screw 340 is screwed to seal the accommodating cavity 121, so that the air pressure inside and outside the accommodating cavity 121 is balanced, and the bonding curved surface can be fixed; if the model or design of the femoral condyle is changed, the pressure relief screw 340 is screwed to circulate the air flow in the accommodating cavity 121, and a new fitting curved surface is reformed to seal the accommodating cavity 121.

Further, in order to prevent the spike 310 from escaping from the accommodating cavity 121, as shown in fig. 3, the spike 310 further includes a stop 313 disposed at a middle portion thereof, wherein the stop 313 is specifically an outer edge protrusion integrally formed with the spike 310, and is disposed in the accommodating cavity 121, and when the first elastic member 320 is in a free state, the stop 313 abuts against the end cover 330.

Further, in the present embodiment, the first elastic member 320 is preferably a cylindrical compression spring, which is sleeved on the spike 310, and has one end abutting against the stop 313 and the other end abutting against the inner wall of the accommodating cavity 121, and when the spike 310 is pressed, the first elastic member 320 is displaced in a direction approaching the interior of the accommodating cavity 121, so that the plurality of pressing surfaces 311 form a fitting curved surface.

Further, as shown in fig. 2, the present prosthetic condyle-holder also includes a lever 400 for facilitating manipulation of the hook 200.

Further, as shown in fig. 2 to 3, the post hole 111 is formed in the post 110, the post hole 111 is formed along the axial direction of the post 110, one end of the post hole 111 extends to be engaged with the gap 130, the other end extends to be engaged with the upper end surface 115 of the post 110, the rod 400 extends into the post hole 111, one end extends to the gap 130 to be connected with the hook 200, the other end extends to the outside of the post hole 111 to be connected with the handle 500, and a doctor can operate the rod 400 through the handle 500 and further operate the hook 200 through the rod 400.

Further, as shown in fig. 2, the present prosthetic condyle retainer further includes a fastener 600 for locking the stem 400 to the body 100 when clamping the femoral condyle prosthesis, thereby ensuring stable clamping of the femoral condyle prosthesis.

Further, as shown in fig. 3, the fastener 600 specifically includes a lock nut 610, where the lock nut 610 is used to be screwed with a threaded section 410 provided on the rod 400 when clamping the femoral condyle prosthesis, so that an interference force is generated between the lock nut 610 and the upper end surface 115 of the post 110, and the rod 400 and the main body 100 are locked, and at the same time, the rod 400 drives the hook 200 to form a pulling action on the buckling concave surface of the femoral condyle prosthesis, so as to achieve a stable clamping effect; with the threaded section 410 disposed on a side proximate the handle 500 that is exposed outside of the post 110.

Further, as shown in fig. 3, a connection portion between the post hole 111 and the main body end face (i.e. the upper end face 115) is concavely provided with a rim groove 112 toward the main body 100, and in this embodiment, the rim groove 112 is inwardly closed from the open end, i.e. is a tapered groove; meanwhile, the fastener 600 further includes a fitting 620 integrally disposed with the lock nut 610, in this embodiment, the fitting 620 is in an annular structure, an outer wall of the annular structure is a conical surface adapted to the flange groove 112, when the lock nut 610 performs a screwing motion relative to the threaded section 410, the fitting 620 can be driven to be placed in the flange groove 112, so that the fitting 620 and the flange groove 112 can ensure that the rod 400 is located on a central axis of the main body 100 in a locking state, and further, the accuracy of clamping and the precise fitting of the pressing surface 311 and the buckling convex surface can be ensured.

Further, as shown in fig. 4, which is a perspective view of a portion of the structure of the prosthetic condyle-holder, fig. 3-4 illustrate a rod 400 having a faceted segment 420, where in this embodiment, the faceted segment 420 includes four facets and is located within the post hole 111 of the post 110; as shown in fig. 3, the prosthesis holder further comprises an elastic pressing assembly 700, wherein the elastic pressing assembly 700 is used for providing continuous elastic pressing action to the prism face section 420, so that the rod 400 can be kept circumferentially stable to a certain extent, and meanwhile, the angle of the hook 200 can be adjusted by adjusting the circumferential angle of the rod 400, so as to adapt to the holding of femoral condyle prosthesis with different designs, and adapt to the operation habit of doctors, wherein four prism faces correspond to four angles of the hook 200, and in other embodiments, different numbers of prism faces can be provided.

Further, as shown in fig. 3, the elastic pressing assembly 700 includes a button 710, one end of the button 710 is sleeved on the prism section 420 through the post 110, and the other end is exposed outside the post 110; a second elastic member 720 is further included, and the second elastic member 720 is configured to provide elastic pressing force to the button 710, so that the button 710 can continuously press the facet 420.

Further, as shown in fig. 3 to 4, the button 710 includes a first portion 711 disposed perpendicular to the central axis of the main body 100, a second through hole 712 is formed in the first portion 711 for passing the prismatic surface segment 420, a through slot 113 is formed in the post member 110 and is communicated with the post hole 111, the first portion 711 extends into the post hole 111 through the through slot 113, so that the prismatic surface segment 420 passes through the second through hole 712, and a pressing pin 713 for pressing the prismatic surface segment 420 is traversed in the second through hole 712; also included is a second portion 714 disposed parallel to the central axis of the body 100, the second portion 714 being exposed to the outside of the body and integrally disposed with the first portion 711; while the second resilient member 720 is preferably a cylindrical compression spring that is in compression, abutting between the second portion 714 and the body, to provide a continuous pressing action on the button 710, thereby providing a pressing action on the land section 420 by the pressing pin 713.

Further, as shown in fig. 3, the present prosthesis holder further comprises a locking assembly 800, wherein the locking assembly 800 is used to lock the button 710 when the circumferential angle of the hook 200 is selected, such that the rod 400 is only axially displaceable.

Further, as shown in fig. 4, the locking assembly 800 includes an eccentric knob 810, wherein the eccentric knob 810 is rotatably connected to the post 110, and the push button 710 is displaced in a direction approaching the main body 100 and moving away from the main body 100 when the eccentric knob 810 is rotated to a position at which the end at which the eccentric knob 810 is relatively short from the center is offset from the second portion 714, and the push button 710 is locked when the eccentric knob 810 is rotated to a position at which the end at which the eccentric knob is relatively long from the center is intersected with the second portion 714.

Further, as shown in fig. 3 to 4, the locking assembly 800 further includes a pin 820, the pin 820 is fixed on the post 110, and a shaft of the pin 820 is disposed in a rim groove 811 formed along a rim side of the eccentric knob 810, so that the eccentric knob 810 and the post 110 can be rotatably connected, and when the locking button 710 is needed, the eccentric knob 810 can be rotated by an external force.

Further, as shown in fig. 3-4, the locking assembly 800 further includes a ball member 830 and a third elastic member 840, as shown in fig. 3, an arc groove 812 is formed on a surface of the eccentric knob 810 near the post 110, a post groove 114 is formed on a surface of the post 110 near the eccentric knob 810, the third elastic member 840 is preferably a cylindrical compression spring, which is disposed in the post groove 114, the ball member 830 abuts between the third elastic member 840 and the eccentric knob 810, and when the eccentric knob 810 rotates until the ball member 830 falls into the arc groove 812, the ball member 830 collides with the eccentric knob 810, thereby prompting the locking of the push button 710.

Further, as shown in fig. 4, the rod 400 is further provided with a cylindrical section 430, when the rod 400 is displaced from the main body 100 to the point that the cylindrical section 430 corresponds to the elastic pressing component 700, the pressing action of the elastic pressing component 700 on the rod 400 is eliminated, and the rod 400 at this time can drive the hook 200 to adjust any circumferential angle, so that the femoral condyle prosthesis with different designs is further adapted.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A holder, comprising:

a main body;

the pressing surfaces are arranged to be capable of elastically displacing or deforming in the directions of approaching the main body and separating from the main body and are used for forming pressing force on the end face of the object to be clamped, which is close to the main body;

and the hook piece is arranged to be capable of generating displacement relative to the main body and is used for forming pulling force on the end face of the object to be clamped away from the main body.

2. A holder according to claim 1, further comprising:

the needle columns are arranged to be capable of displacing in the directions of approaching the main body and separating from the main body, so that the end face of one end of the needle column, which is far from the main body, is formed into a pressing surface;

and the plurality of first elastic pieces are in one-to-one correspondence with the plurality of spike posts and are used for applying elastic deformation force to the spike posts in the directions of approaching to the main body and separating from the main body.

3. A holder according to claim 2 wherein said spike further comprises a resilient pad disposed at an end of said spike remote from said body.

4. A holder according to claim 2, wherein: the main body comprises a containing cavity which is concavely arranged on the main body, the first elastic piece and the needle column are arranged in the containing cavity, and one end, close to the pressing surface, of the needle column extends out of the containing cavity.

5. A holder according to claim 4, further comprising:

the end cover seals the opening end of the accommodating cavity, so that the spike extends out of the accommodating cavity through the end cover, and the end cover is respectively in sealing arrangement with the accommodating cavity and the spike;

and the main body is provided with a first through hole for communicating the inside and the outside of the accommodating cavity, and the pressure relief screw is connected in the first through hole.

6. A holder according to claim 5 wherein said spike includes a stop disposed in a central portion thereof, said stop being disposed within said receiving cavity, said stop abutting said end cap when said first resilient member is in a free condition.

7. A holder according to claim 6, wherein the first resilient member is a cylindrical compression spring which is sleeved on the spike and has one end abutting the stopper and the other end abutting the inner wall of the receiving chamber.

8. A holder according to any one of claims 1 to 7, further comprising:

the rod piece is arranged to be capable of displacing relative to the main body, and the hook piece is connected to one end of the rod piece, so that the hook piece can displace along with the rod piece;

and a fastener for locking the lever with the main body when necessary.

9. A holder according to claim 8, wherein: the main body is provided with a column hole, and the rod piece passes through the column hole; the fastener comprises a lock nut which is used for being in screw connection with a thread section arranged on the rod piece when necessary, and the rod piece and the main body are locked when interaction force is generated between the lock nut and the main body.

10. A holder as claimed in claim 9, wherein:

an edge groove is concavely formed in the joint of the column hole and the end face of the main body towards the side of the main body;

the fastener also comprises a fitting integrally arranged with the lock nut, and the fitting is matched with the edge groove.

11. A holder according to claim 8, wherein:

the rod piece is provided with a faceted segment, and the faceted segment comprises at least one faceted surface;

the holder also includes a resilient pressing assembly for providing a continuous resilient pressing action to the faceted segment.

12. A holder as claimed in claim 11, wherein: the rod piece is further provided with a cylindrical section, and when the rod piece is displaced to the position where the cylindrical section corresponds to the elastic pressing component, the pressing action of the elastic pressing component on the rod piece is eliminated.

13. A holder according to claim 11, wherein said resilient pressing assembly comprises:

one end of the button is sleeved on the rod piece through the main body, and the other end of the button is exposed outside the main body;

and the second elastic piece is used for providing elastic pressing force for the button so that the button can continuously press the rod piece.

14. A holder according to claim 13, further comprising a locking assembly for locking the button when necessary.

15. A holder according to claim 14, wherein said button comprises:

the first part is arranged perpendicular to the central axis of the main body, a second through hole for the rod piece to pass through is formed in the first part, so that the first part stretches into the main body and is sleeved on the rod piece, and a pressing pin for pressing the rod piece transversely penetrates through the second through hole;

and a second portion disposed parallel to a central axis of the body, the second portion being exposed outside the body and disposed integrally with the first portion;

the second elastic piece is a cylindrical compression spring, and the cylindrical compression spring is in a compression state and is abutted between the second part and the main body.

16. A holder according to claim 15, wherein the locking assembly comprises an eccentric knob rotatably provided on the body, the button being displaceable in a direction closer to and farther from the body when the eccentric knob is rotated to a position at which the end at which the eccentric knob is shorter from the center thereof is offset from the second portion, and the button being locked when the eccentric knob is rotated to a position at which the end at which the eccentric knob is longer from the center thereof intersects the second portion.

17. A holder according to claim 16, wherein the locking assembly further comprises a pin secured to the body, and wherein the shaft of the pin is disposed in a rim channel formed along the rim of the eccentric knob.

18. The holder of claim 16, wherein the locking assembly further comprises a ball member and a third elastic member, wherein the eccentric knob has an arcuate slot formed in a side thereof adjacent to the main body, a post slot formed in a side thereof adjacent to the eccentric knob, the third elastic member being disposed in the post slot, and the ball member being disposed between the third elastic member and the eccentric knob.