CN113796916A

CN113796916A - Repeating metal clamp

Info

Publication number: CN113796916A
Application number: CN202111376093.4A
Authority: CN
Inventors: 董瑞洪; 刘男; 周宝红; 雷云
Original assignee: Hangzhou Kangji Medical Instrument Co Ltd
Current assignee: Hangzhou Kangji Medical Instrument Co Ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2021-12-17

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a metal clamp for continuous firing. The invention provides a burst metal clamp, aiming at the problem that the cartridge clip action and the chuck action of a burst type clip applier in the prior art are respectively controlled by two positions, and the operation of medical care personnel is inconvenient, the burst metal clamp comprises an outer shell, a clamp head push rod is connected to the outer shell, one end of the clamp head push rod is provided with a clamp head, the outer shell is provided with a cartridge clip installation structure, a cartridge clip assembly is installed on the cartridge clip installation structure, the cartridge clip installation structure comprises a metal clip push rod assembly, the metal clip push rod assembly is fixedly connected to a metal clip driving structure, the burst metal clip metal clamp comprises a driving handle, and the clamp head driving structure and the metal clip driving structure are in driving connection with the driving handle. The driving handle is connected with the tong head driving structure and the metal clamp driving structure at the same time, and when the metal clamp driving structure is used, the actions of closing the tong head and pushing the metal clamp can be realized only by operating the driving handle, so that the metal clamp driving structure is simple in structure and convenient to use.

Description

Repeating metal clamp

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a metal clamp for continuous firing.

Background

In endoscopic surgery, blood vessels need to be clamped to prevent bleeding when organs and tissues are severed. At present, reusable medical biological clip single-hair clip appliers are mainly adopted, although the clip appliers can effectively solve the problem of blood vessel ligation in endoscopic surgery, doctors need to take out the clip appliers from human bodies after clamping each biological clip, and then the clip appliers are delivered to nurses, the nurses put new hemostatic clips into clip heads and clip mouths, and then the hemostatic clips are delivered to the doctors to implement secondary application, the operation is repeated, and two persons are needed to operate when each clip appliers is finished, so that long time is spent; and the clip applier repeatedly goes in and out of the human body, so that the risk of infection and bleeding is increased. Therefore, the continuous hair clip applier capable of continuously clipping also appears in the prior art, but the clip action and the chuck action of the continuous hair clip applier in the prior art are controlled by two positions respectively, so that the operation of medical staff is inconvenient.

For example, the chinese invention patent application discloses a continuous hair clip applier [ application No.: 201810646052.4, the patent application of the invention comprises a push handle, a pipe rod, a binding clip arranged at the front end of the pipe rod, and is characterized by also comprising a push-pull rod driven by the push handle, a feeding device and a storage cabin, wherein the storage cabin is provided with a front end movably connected with the binding clip and a rear end opposite to the front end, one end of the push-pull rod is connected with the push handle, the other end of the push-pull rod is connected with the rear end of the storage cabin and acts on the storage cabin to open or clamp the binding clip, the feeding device comprises a driving member and a driving member for driving the driving member to move, a plurality of clips for clamping blood vessels are arranged in the storage cabin, and the driving member extends into the storage cabin to push the clips to enter the binding clip.

The patent application of the invention has the advantage of timely, accurate and rapid hemostasis for a plurality of blood vessels, but the invention still does not solve the problems.

Disclosure of Invention

The invention aims to solve the problems and provides a pair of continuous firing metal tongs which is simple in structure and convenient to use.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a running fire metal tongs, includes the shell body, and the binding clip push rod is connected on the shell body and the one end of binding clip push rod is equipped with the binding clip, removes the binding clip push rod can drive the binding clip and open or press from both sides tightly, be equipped with cartridge clip mounting structure on the shell body for the cartridge clip subassembly that holds two at least metal clips is installed on cartridge clip mounting structure, cartridge clip mounting structure is including being used for pushing away the metal clip to the interior metal clip push rod subassembly of binding clip, the one end fixed connection that the binding clip was kept away from to metal clip push rod subassembly is on the metal clip drive structure, still including rotating the drive handle of connection on the shell body, binding clip drive structure and metal clip drive structure all are connected with the drive handle drive, and it can drive binding clip drive structure and metal clip drive structure along opposite direction removal to rotate the drive handle.

In foretell running fire metal tongs, cartridge clip mounting structure includes the exoskeleton, be equipped with the cartridge clip chamber that is used for holding the cartridge clip subassembly in the exoskeleton, the one end of exoskeleton is equipped with the inserted hole that is linked together with cartridge clip chamber, still including setting up the outer push rod subassembly that just extends along exoskeleton length direction outside the exoskeleton, push rod subassembly one end is connected on the metal clip drive structure, driving handle and metal clip drive structure drive are connected, metal clip drive structure promotes push rod subassembly and takes place the reciprocating motion along exoskeleton length direction, be equipped with the propulsion intercommunicating pore that link up the exoskeleton lateral wall on the exoskeleton, push rod subassembly part extends to cartridge clip intracavity through the intercommunicating pore.

In foretell running fire metal tongs, the outer push rod subassembly includes interconnect's the body of rod and flat strip, the one end that the flat strip was kept away from to the body of rod is connected on metal clip drive structure, the flat strip laminating promotes protruding fixed connection in flat strip bottom surface on outer skeleton surface, and promotes the arch and extend to the bullet through the intercommunicating pore and press from both sides the intracavity, still including setting up the cramp on outer skeleton, cramp one end and outer skeleton fixed connection, the other end is pressed and is established on the surface of flat strip, cramp and flat strip are the sheet that is made by metal material.

In foretell running fire metal tongs, be connected with first transmission assembly and second transmission assembly on the drive handle, the one end that drive handle was kept away from to the first transmission assembly extends to the direction that is close to binding clip drive structure, the one end that drive handle was kept away from to the second transmission assembly extends to the direction that is close to metal clamp drive structure, rotates the drive handle, first transmission assembly promotes binding clip drive structure, the second transmission assembly promotes metal clamp drive structure, one in first transmission assembly and the second transmission assembly and drive handle fixed connection, another and drive handle swing joint, and the swing joint position is located the below of drive handle rotation center.

In foretell continuous firing metal tongs, first transmission assembly includes that one end fixed connection is at the first transmission handle on drive handle, binding clip drive structure lateral surface is equipped with to the inside sunken first drive recess of binding clip drive structure, the one end that drive handle was kept away from to first transmission handle extends to in the first drive recess, rotates the drive handle and can make the tip of first transmission handle remove and press and establish on binding clip drive structure at first drive recess.

In the above-mentioned repeating metal pliers, the second transmission assembly includes a second transmission handle with one end rotatably connected to the outer housing, the outer side surface of the metal clip driving structure is provided with a second driving groove recessed inside the metal clip driving structure, the end of the second transmission handle far away from the rotation connection point extends into the second driving groove, the second transmission assembly further includes a reverse push rod, one end of the reverse push rod is rotatably connected with the driving handle and the connection point is located below the rotation center of the driving handle, the other end extends between the rotation connection point and the second driving groove and is rotatably connected with the second transmission handle, the side surface of the second transmission handle is protruded with a connection column, one end of the connection column far away from the second transmission handle is fixedly connected with an anti-falling part, one end of the reverse push rod close to the second transmission handle is provided with a waist hole, the connection column is located in the waist hole, and the length of the waist hole is greater than the outer diameter of the connection column, the width of the waist hole is smaller than the outer diameter of the anti-falling part.

In foretell continuous firing metal tongs, still include with the cartridge clip subassembly on the positive and negative discernment piece of opening matched with, positive and negative discernment piece is located cartridge clip intracavity and fixed connection is close to the one end of inserted hole at the exoskeleton, positive and negative discernment piece includes the connecting plate body of fixed connection on the exoskeleton, the one end of connecting plate body is connected with barrier plate and discernment board, and barrier plate and discernment board set up side by side, one side that the barrier plate is close to the inserted hole is equipped with blocks the face, one side that the discernment board is close to the inserted hole is equipped with discernment inclined plane, the inclination on discernment inclined plane is less than the inclination that blocks the face, and the tip on discernment inclined plane more is close to the inserted hole than the tip that blocks the face.

In foretell burst metal clip, the cartridge clip subassembly includes the cartridge clip casing, the cartridge clip that has in the casing is used for holding two at least metal clips holds the cavity, still be equipped with the feed bar in the cartridge clip casing and hold the cavity, feed bar sliding connection holds in the cavity at the feed bar, the feed bar holds cavity and metal clip and holds the cavity and communicate each other, and slides the feed bar and can make the one end of feed bar extend to the metal clip and hold in the cavity.

In the repeating metal clamp, the feed rod comprises a handle and a feed unit, one end of the handle, which is far away from the feed unit, extends out of the feed rod accommodating cavity, the feed unit is provided with a plurality of feed holes which are sequentially connected end to end, and the feed unit comprises feed through holes and a feed cross beam arranged between the two feed through holes; the cartridge clip casing bottom surface still is connected with non return elastic sheet, non return elastic sheet one end fixed connection is on cartridge clip casing bottom surface, and the other end just holds the cavity to the feed bar for the free end extends, and the free end of non return elastic sheet is closer to the metal clip than the stiff end, cartridge clip casing lower surface is sealed, and the upper surface has the opening that is the bar, the opening holds the cavity and the feed bar with the metal clip and holds the cavity homogeneous phase intercommunication.

In the above-mentioned repeating metal tongs, the cartridge clip mounting structure further comprises a limiting block rotatably connected with the outer framework, and the sliding metal clip driving structure can enable the metal clip driving structure to be pressed on the limiting block and enable one end of the limiting block to extend into the cartridge clip cavity.

Compared with the prior art, the invention has the advantages that:

1. the driving handle is connected with the tong head driving structure and the metal clamp driving structure at the same time, and when the metal clamp driving structure is used, the actions of closing the tong head and pushing the metal clamp can be realized only by operating the driving handle.

The driving handle can drive the tong head driving structure and the metal clamp driving structure to move in opposite directions, so that the tong head is opened when the metal clamp is pushed, and the metal clamp push rod assembly returns to reset when the tong head is clamped, thereby meeting the actual requirements of the operation process.

The width of the first driving groove is larger than that of the end part of the first transmission handle, and the length of the waist hole is larger than the outer diameter of the connecting column, so that a gap is reserved between the two groups of structures, and the empty stroke generated by partial empty running in the driving direction steering is ensured, thereby effectively avoiding the interference generated when the metal clamp is forced to be embedded in the automatic embedding way.

The invention separately arranges a cartridge clip assembly which can be preassembled with a plurality of metal clips in the cartridge clip mounting structure, and the metal clips in the cartridge clip assembly can be sequentially ejected out for clip application by pushing the outer push rod assembly by utilizing the driving handle in the operation process, thereby realizing continuous clip application, greatly improving the operation efficiency and saving the operation time.

The outer push rod assembly is arranged on the outer side of the outer framework, the cartridge clip assembly is arranged in the outer framework, the outer push rod assembly partially extends into the cartridge clip cavity, and the metal clip driving structure pushes the cartridge clip assembly to reciprocate so as to realize reciprocating pushing of the cartridge clip assembly, thereby realizing continuous clip application.

The invention realizes the pushing of the clip assembly by utilizing the pushing bulge which gradually enlarges from one end close to the metal clip driving structure to the other end of the length of the lower surface of the convex flat strip, so that the flat strip can be wholly jacked up when the outer push rod assembly retreats, and the clip assembly is prevented from being driven to retreat.

The bottom surface of the cartridge clip shell is also connected with the non-return elastic piece, so that the feeding rod can be guaranteed to be propped by the non-return elastic piece when retreating occurs, and the ejection efficiency of the feeding rod is guaranteed.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a portion of the structure of the present invention;

FIG. 3 is a schematic structural view of a burst clip applying mechanism;

FIG. 4 is an exploded view of a burst clip applying mechanism;

FIG. 5 is a cross-sectional view of a portion of the structure of the hair clip applying mechanism;

FIG. 6 is a schematic view of the construction of the cartridge clip assembly;

FIG. 7 is a schematic structural view of the front-back identifying piece;

FIG. 8 is an enlarged view at B in FIG. 6;

figure 9 is an exploded view of the cartridge clip assembly;

FIG. 10 is an enlarged view at A in FIG. 2;

in the figure: the forceps head comprises a forceps head 1, a forceps head push rod 2, a forceps head driving structure 3, a metal clamp driving structure 4, a driving handle 5, a first transmission assembly 6, a second transmission assembly 7, a first transmission handle 61, a first driving groove 62, a second transmission handle 71, a second driving groove 72, a rotating connection point 73, a reverse push rod 74, an anti-falling part 75, a waist hole 76, a clip assembly 100, a clip shell 101, a metal clamp 102, a clip accommodating cavity 103, a feed rod accommodating cavity 104, a feed rod 105, a feed unit 106, a handle 107, a feed through hole 108, a cross beam 109, a mark 110, a non-return elastic sheet 111, an opening 112, a guide strip 113, an outer framework 201, an outer push rod assembly 202, a communication hole 203, a clip cavity 204, a rod body 205, a flat strip 206, a push bulge 207, a fastening sheet 208, a limiting piece 209, a positive and negative identification piece 210, an insertion hole 211, a connecting plate body 212, a blocking plate 213, a recognition plate 214, a blocking surface 215, a rotating connection surface, Discernment inclined plane 216, stopper 217, shell body 300.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, a repeating metal clamp comprises an outer shell 300, a clamp head push rod 2 is connected to the outer shell 300, one end of the clamp head push rod 2 is provided with a clamp head 1, the clamp head push rod 2 can drive the clamp head 1 to open or clamp, the connection mode of the clamp head push rod 2 and the clamp head 1 can adopt a specific connection mode in the prior art and also can adopt an inclined plane guiding mode, namely, the clamp head push rod 2 pushes a slide block with an inclined plane forwards, the inclined plane is in an inward folding state, and the clamp of the clamp head 1 is realized under the guiding of the inclined plane along with the pushing of the clamp head push rod 2. Be equipped with cartridge clip mounting structure 200 on shell body 300 for the cartridge clip subassembly 100 that holds two at least metal clips 102 is installed on cartridge clip mounting structure 200, cartridge clip mounting structure 200 is including being used for pushing away metal clip 102 to the metal clip push rod subassembly 202 in binding clip 1, the one end fixed connection that binding clip 1 was kept away from to metal clip push rod subassembly 202 is on metal clip drive structure 4, still including rotating the drive handle 5 of connection on shell body 300, binding clip drive structure 3 and metal clip drive structure 4 all are connected with drive handle 5 drive, and it can drive binding clip drive structure 3 and metal clip drive structure 4 and remove along opposite direction to rotate drive handle 5.

When the metal clamp driving mechanism is used, the driving handle 5 is rotated, and the driving handle 5 drives the tong head push rod 2 and the metal clamp push rod assembly 202 to move through the tong head driving structure 3 and the metal clamp driving structure 4 respectively so as to drive the opening and closing of the tong head 1 and the propulsion of the metal clamp respectively. Therefore, the driving handle 5 of the metal clamp driving structure is connected with the binding clip driving structure 3 and the metal clamp driving structure 4 at the same time, and when the metal clamp driving structure is used, the actions of closing the binding clip 1 and pushing the metal clamp can be realized only by operating the driving handle 5. Meanwhile, the driving handle 5 can drive the tong head driving structure 3 and the metal clamp driving structure 4 to move along opposite directions, so that the tong head 1 is opened when a metal clamp is pushed, and the metal clamp push rod assembly 202 is retracted and reset when the tong head 1 is clamped, thereby meeting the actual requirements of the operation process.

Referring to fig. 2 and 10, a first transmission assembly 6 and a second transmission assembly 7 are connected to the driving handle 5, one end of the first transmission assembly 6, which is far away from the driving handle 5, extends in a direction close to the bit driving structure 3, one end of the second transmission assembly 7, which is far away from the driving handle 5, extends in a direction close to the metal clip driving structure 4, the driving handle 5 is rotated, the first transmission assembly 6 pushes the bit driving structure 3, the second transmission assembly 7 pushes the metal clip driving structure 4, one of the first transmission assembly 6 and the second transmission assembly 7 is fixedly connected with the driving handle 5, the other one is movably connected with the driving handle 5, and a movable connection point is located below a rotation center of the driving handle 5.

As shown in fig. 10, the first transmission assembly 6 includes a first transmission handle 61 having one end fixedly connected to the driving handle 5, the outer side of the binding clip driving structure 3 is provided with a first driving groove 62 recessed into the binding clip driving structure 3, one end of the first transmission handle 61 far away from the driving handle 5 extends into the first driving groove 62, and the driving handle 5 is rotated to move the end of the first transmission handle 61 in the first driving groove 62 and press the end on the binding clip driving structure 3.

Preferably, the first transmission handles 61 are provided with two ends which are symmetrically connected to two sides of the driving handle 5, the first driving grooves 62 are connected end to form an annular shape, and two ends of the first transmission handles 61 are respectively arranged on two sides of the center of the annular shape.

As shown in fig. 10, the second transmission assembly 7 includes a second transmission handle 71 with one end rotatably connected to the outer housing 300, a second driving groove 72 recessed inside the metal clip driving structure 4 is formed in the outer side surface of the metal clip driving structure 4, one end of the second transmission handle 71 far away from the rotation connection point 73 extends into the second driving groove 72, the second transmission assembly 7 further includes a reverse push rod 74, one end of the reverse push rod 74 is rotatably connected to the driving handle 5, the connection point is located below the rotation center of the driving handle 5, and the other end extends to a position between the rotation connection point 73 and the second driving groove 72 and is rotatably connected to the second transmission handle 71.

When the metal clamp driving structure is used, an external force is applied to the driving handle 5, one end of the first transmission handle 61 moves synchronously along with the rotation of the driving handle 5, the other end swings forwards until the first transmission handle is pressed on the clamp head driving structure 3 to push the clamp head driving structure 3 to move forwards, at the moment, one end of the reverse push rod 74 is connected below the rotation center of the driving handle 5, so that the reverse push rod 74 is pushed by the driving handle 5 to move backwards, and the reverse push rod 74 pushes the second transmission handle 71 to swing backwards, so that the metal clamp driving structure 4 is pushed to move backwards. After the clamping is finished, the external force applied to the driving handle 5 is removed, the process opposite to the steps is carried out, the resetting is finished, and the clamp is ready for next clamping.

Specifically, a connecting column is protruded from the side surface of the second transmission handle 71, the connecting column is not shown in the figure, one end of the connecting column, which is far away from the second transmission handle 71, is fixedly connected with an anti-falling part 75, one end of the reverse push rod 74, which is close to the second transmission handle 71, is provided with a waist hole 76, the connecting column is located in the waist hole 76, and the width of the waist hole 76 is smaller than the outer diameter of the anti-falling part 75. This prevents the end of the reverse push rod 74 from falling out of the attachment post.

Preferably, the length of the waist hole 76 is greater than the outer diameter of the connecting column, and the width of the first driving groove 62 is greater than the width of the end of the first transmission handle 61 near one end of the first driving groove 62.

The width of the first driving groove 62 is larger than that of the end part of the first transmission handle 61, and the length of the waist hole 76 is larger than the outer diameter of the connecting column, so that a gap is reserved between the two groups of structures, and the empty stroke generated by partial emptying when the driving direction turns is ensured, thereby effectively avoiding the interference when the metal clamp approaches and automatically embeds.

As shown in fig. 1, the tong head driving structure 3 and the metal clamp driving structure 4 are both cylindrical, and the axial line of the tong head driving structure 3 and the axial line of the metal clamp driving structure 4 are coincident with each other or parallel to each other. Therefore, the force applied by the clamp head driving structure 3 and the metal clamp driving structure 4 is parallel to each other when the metal clamp is pushed, and the stability in the using process is ensured.

Referring to fig. 1, 3 and 4, the cartridge clip mounting structure 200 includes an outer frame 201, a cartridge clip cavity 204 for accommodating the cartridge clip assembly 100 is provided in the outer frame 201, an insertion opening 211 communicated with the cartridge clip cavity 204 is provided at one end of the outer frame 201, the cartridge clip mounting structure further includes an outer push rod assembly 202 provided outside the outer frame 201 and extending along the length direction of the outer frame 201, one end of the outer push rod assembly 202 is connected to the metal clip driving structure 4, the driving handle 5 is in driving connection with the metal clip driving structure 4, the metal clip driving structure 4 pushes the outer push rod assembly 202 to reciprocate along the length direction of the outer frame 201, a pushing communication hole 203 penetrating through the side wall of the outer frame 201 is provided on the outer frame 201, and the outer push rod assembly 202 partially extends into the cartridge clip cavity 204 through the communication hole 203.

When the clip assembly 100 is used, the clip assembly 100 is installed in the clip cavity 204, the driving handle 5 is rotated to drive the metal clip driving structure 4, so that the metal clip driving structure 4 pushes the outer push rod assembly 202 to reciprocate along the length direction of the outer framework 201, and then the outer push rod assembly 202 sequentially pushes out the metal clips 102 in the clip assembly 100, thereby realizing continuous clip application. Therefore, the outer push rod assembly 202 is arranged outside the outer framework 201, the cartridge clip assembly 100 is arranged inside the outer framework 201, the outer push rod assembly 202 extends into the cartridge clip cavity 204 partially, and the metal clip driving structure 4 pushes the cartridge clip assembly 100 to reciprocate, so that continuous clamping is realized.

As shown in fig. 5, the outer push rod assembly 202 includes a rod body 205 and a flat bar 206 connected to each other, one end of the rod body 205 away from the flat bar 206 is connected to the metal clip driving structure 4, the flat bar 206 is attached to the surface of the outer frame 201, the push protrusion 207 is fixedly connected to the bottom surface of the flat bar 206, and the push protrusion 207 extends into the clip cavity 204 through the communication hole 203. The rod body 205 is cylindrical, the flat bar 206 is square, and the ends of the rod body 205 and the flat bar 206 are abutted against each other.

Be columniform body of rod 205 be convenient for erection joint to metal clip drive structure 4 on, be square flat strip 206 laminating can effectively prevent to advance the in-process to take place circumferential direction on the surface of exoskeleton 201, guarantee the stability that promotes.

Preferably, the fastening plate 208 is further included on the outer frame 201, one end of the fastening plate 208 is fixedly connected with the outer frame 201, and the other end is pressed on the surface of the flat bar 206. This applies a force to the flat bar 206 that causes the flat bar 206 to better conform to the surface of the exoskeleton 201.

As shown in fig. 5 and 6, the length of the lower surface of the protruding flat bar 206 of the pushing projection 207 gradually increases from one end near the clip driving structure 4 to the other end. For example, the cross-section of the pushing projection 207 may be a triangle. The invention realizes the pushing of the clip assembly 100 by the pushing bulge 207 which gradually enlarges from one end close to the metal clip driving structure 4 to the other end of the length of the lower surface of the protruding flat strip 206, thus the flat strip 206 can be wholly jacked up when the outer push rod assembly 202 retracts, and the clip assembly 100 is prevented from being driven to retract.

Preferably, the flat bar 206 is provided with at least two pushing protrusions 207, and one of the pushing protrusions 207 is located at one end of the flat bar 206 close to the binding clip 1. Thus, the pushing projections 207 near the binding clip 1 push the metal clip 102 into the binding clip 1, and the next pushing projection 207 pushes the feed bar 105, causing the remaining feed bar 105 to move forward.

In use, the structure of the push rod for pushing the metal clip inside the cartridge clip assembly 100 can adopt a stair-like structure as shown in fig. 6, i.e. a structure of the feeding units 106 connected one after another. The metal clip driving structure 4 pushes the rod 205 and thus the flat bar 206 to reciprocate along the length direction of the exoskeleton 201. When moving forward, the pushing projection 207 extends into the cartridge chamber 204 and presses against the side of the cross beam 109, thereby pushing the feed bar 105 in the cartridge assembly 100. After a metal clip 102 is pushed out for clipping, the metal clip driving structure 4 drives the flat bar 206 to move backwards. At this time, the end slope of the pushing protrusion 207 is pressed against the cross beam 109 of the next feeding unit 106 to be jacked up, and the flat bar 206 is deformed as a whole against the pressure of the fastening tab 208 and jacked up until the pushing protrusion 207 is snapped into the next feeding unit 106 again to be ready for the next pushing. The above process is repeated to realize continuous clip application.

Preferably, the fastening tabs 208 and the flat bars 206 are both sheets made of a metal material. This allows the fastening tabs 208 and the flat strips 206 to have a certain elasticity, which can apply pressure and be deformed to be lifted up when necessary.

As shown in fig. 3, the outer frame 201 further includes a limiting member 209 disposed on the outer frame 201, the outer push rod assembly 202 penetrates through the limiting member 209, at least two limiting members 209 are disposed, and each of the limiting members 209 is parallel to each other.

As shown in fig. 5 and 7, the cartridge clip further includes a positive and negative identification member 210, which is engaged with the opening 112 of the cartridge clip assembly 100, wherein the positive and negative identification member 210 is located in the cartridge clip cavity 204 and is fixedly connected to one end of the exoskeleton 201 close to the insertion port 211. The positive and negative identifiers 210 ensure that the clip assembly 100 is inserted into the insertion opening 211 from the correct orientation.

Specifically, the positive and negative recognition piece 210 includes a connection plate body 212 fixedly connected to the exoskeleton 201, one end of the connection plate body 212 is connected to a blocking plate 213 and a recognition plate 214, the blocking plate 213 and the recognition plate 214 are arranged side by side, a blocking surface 215 is arranged on one side of the blocking plate 213 close to the insertion port 211, a recognition inclined surface 216 is arranged on one side of the recognition plate 214 close to the insertion port 211, an inclination angle of the recognition inclined surface 216 is smaller than that of the blocking surface 215, as shown in fig. 6, the blocking surface 215 is designed to be a surface with a larger inclination, preferably a surface perpendicular to the connection plate body 212, and thus, a blocking effect can be more effectively achieved. And the end of the identification slope 216 is closer to the insertion port 211 than the end of the blocking surface 215.

When the cartridge clip assembly 100 is used, one side of the cartridge clip assembly 100 has the opening 112 and the other side does not have the opening, so that when the side of the cartridge clip assembly 100 having the opening 112 is inserted into the positive and negative identification member 210, the identification plate 214 having the identification inclined surface 216 is inserted into the opening 112, and the structure on the side of the opening 112 is pressed on the blocking surface 215 when the cartridge clip assembly continues to slide, so that the cartridge clip assembly cannot be inserted continuously. On the contrary, when the side of the clip assembly 100 without the opening 112 is opposite to the front and back identification member 210, the clip assembly 100 will contact the identification inclined surface 216 first, and since the identification inclined surface 216 is inclined to a smaller extent, the clip assembly 100 can slide along the identification inclined surface 216 and press down the front and back identification member 210 as a whole, so that the blocking surface 215 will not be touched for smooth insertion.

Referring to fig. 6 and 9, the cartridge clip assembly 100 includes a cartridge clip housing 101, a metal clip accommodating cavity 103 for accommodating at least two metal clips 102 is formed in the cartridge clip housing 101, a feeding rod accommodating cavity 104 is further formed in the cartridge clip housing 101, a feeding rod 105 is slidably connected in the feeding rod accommodating cavity 104, the feeding rod accommodating cavity 104 and the metal clip accommodating cavity 103 are communicated with each other, and the feeding rod 105 is slid so that one end of the feeding rod 105 extends into the metal clip accommodating cavity 103.

When the clip applying machine is used, after the plurality of metal clips 102 are preassembled in the metal clip accommodating cavity 103, the clip applying machine is integrally installed in the clip applying machine, the feeding rod 105 is driven to enable the feeding rod 105 to slide relative to the clip applying machine shell 101, so that the feeding rod 105 extends into the metal clip accommodating cavity 103 to push the metal clips 102, the metal clips 102 are sequentially pushed out, and continuous clip applying is further realized. Therefore, the invention can pre-install a plurality of metal clamps 102 in the metal clamp accommodating cavity 103, and can sequentially eject the clamps by using the feed rod 105 in the operation process, thereby realizing continuous clamping, greatly improving the operation efficiency and saving the operation time.

Preferably, the length of the feed bar receiving cavity 104 is greater than the length of the clip receiving cavity 103. This ensures that feed bar 105 pushes all pre-loaded metal clips 102 out to complete the clip application.

As shown in fig. 6, 8 and 9, the feed bar 105 includes a handle 107 and a feed unit 106, and an end of the handle 107 remote from the feed unit 106 extends out of the feed bar receiving cavity 104 to facilitate the installation of the cartridge clip as a whole. The feeding units 106 are arranged in a plurality and connected end to end in sequence.

Preferably, the length of each feeding unit 106 is the same as the length of the metal clip 102. So that exactly one metal clip 102 can be pushed out to complete the clip application per length of one feeding unit 106.

In particular, the feed unit 106 comprises a feed through hole 108 and a feed beam 109 arranged between the two feed through holes 108. In use, the advancement mechanism on the clip applier pushes the feed beam 109 by extending into the feed through hole 108, thereby pushing the feed bar 105 as a whole.

As shown in fig. 6, two sides of the feed bar 105 are respectively attached to two inner side walls of the cartridge case 101. Thus, the cartridge housing 101 can function as a guide to prevent the feed bar 105 from rocking side to side.

As shown in fig. 9, the cartridge case 101 is further provided with a mark 110 for pointing to the mounting direction when the cartridge is mounted. The mark 110 is a through hole penetrating the bottom surface of the cartridge clip housing 101 and having an arrow shape. Therefore, the installation direction can be conveniently distinguished when the cartridge clip is installed into the clip applier.

As shown in fig. 9, a guide bar 113 is further fixedly connected to one end of the feeding rod 105 close to the metal clip 102, one end of the guide bar 113 extends into the metal clip accommodating cavity 103, and a protrusion is disposed on a side surface of the metal clip 102 and pressed on the guide bar 113. The guide strips 113 may be steel wires in order to ensure stability and consistency of the position of the metal clip 102 within the cartridge housing 101.

As shown in fig. 8, a non-return elastic sheet 111 is further connected to the bottom surface of the cartridge clip housing 101, one end of the non-return elastic sheet 111 is fixedly connected to the bottom surface of the cartridge clip housing 101, the other end is a free end and extends into the feeding rod accommodating cavity 104, and the free end of the non-return elastic sheet 111 is closer to the metal clip 102 than the fixed end. In the invention, the bottom surface of the cartridge clip shell 101 is also connected with the non-return elastic sheet 111, so that the feeding rod 105 can be ensured to be propped against by the non-return elastic sheet 111 when retreating occurs, and the ejection efficiency of the feeding rod 105 is ensured.

As shown in fig. 9, the lower surface of the cartridge case 101 is closed, and the upper surface has a strip-shaped opening 112, and the opening 112 communicates with both the clip accommodating cavity 103 and the feed bar accommodating cavity 104. This facilitates installation by cooperating with the positive and negative identifier 210 to distinguish the positive and negative directions of the clip assembly 100 when installed into the clip applier.

As shown in fig. 5, the cartridge clip mounting structure 200 further includes a limiting block 217 rotatably connected to the outer frame 201, and sliding the metal clip driving structure 4 can press the metal clip driving structure 4 on the limiting block 217 and extend one end of the limiting block 217 into the cartridge clip cavity 204. When the driving handle 5 is pinched, the metal clip driving structure 4 slides to the bottommost end, at this time, the metal clip driving structure 4 is separated from the surface of the limiting block 217, so that the limiting block 217 can rotate freely, and at this time, the cartridge clip assembly 100 can be inserted into or pulled out of the rear end of the titanium clamp. When loosening the actuating handle 5, metal clip drive structure 4 is pressed and is established to stopper 217 surface, because the one end of stopper 217 extends to the cartridge clip chamber 204 this moment, cartridge clip subassembly 100 can not realize inserting, if cartridge clip subassembly 100 is located the cartridge clip chamber 204 in the same time, actuating handle 5 also can't realize resetting completely to can avoid cartridge clip subassembly 100 to assemble the not-in-place condition. When the driving handle 5 is not completely pinched, the metal clip driving structure 4 is located at the outer end of the limiting block 217, and the limiting block 217 cannot rotate, so that the cartridge clip assembly 100 is ensured to be always in a standby working state.

The working principle of the invention is as follows: when in use, the plurality of metal clips 102 are pre-assembled in the metal clip accommodating cavity 103, and then the pre-assembly of the cartridge clip assembly 100 is completed. The cartridge clip assembly 100 is correctly installed in the cartridge clip cavity 204 after being identified by the positive and negative identification pieces 210 through the insertion opening 211, and the push rod structure for pushing the metal clip inside the cartridge clip assembly 100 can adopt a stair-like structure as shown in fig. 6, that is, the feeding units 106 are connected in sequence one by one. Exerting external force on drive handle 5, first transmission handle 61 one end is followed and is rotated drive handle 5 synchronous motion, the other end swings forward and set up on binding clip drive structure 3 thereby promote binding clip drive structure 3 and move forward, further promote binding clip push rod 2 and move forward, at this moment, because reverse push rod 74 one end is connected in the below of drive handle 5 rotation center, so reverse push rod 74 is promoted by drive handle 5 and moves backward, reverse push rod 74 promotes second transmission handle 71 and swings backward, thereby promote metal clamp drive structure 4 and move backward, further pulling metal clamp push rod subassembly 202 moves backward. After the clamping is finished, the external force applied to the driving handle 5 is removed, the process opposite to the steps is carried out, the resetting is finished, and the clamp is ready for next clamping. That is, the metal clip driving structure 4 can push the rod 205 and thus the flat bar 206 to move back and forth along the length direction of the outer frame 201. When moving forward, the pushing projection 207 extends into the cartridge chamber 204 and presses against the side of the cross beam 109, thereby pushing the feed bar 105 in the cartridge assembly 100. After a metal clip 102 is pushed out for clipping, the metal clip driving structure 4 drives the flat bar 206 to move backwards. At this time, the end slope of the pushing protrusion 207 is pressed against the cross beam 109 of the next feeding unit 106 to be jacked up, and the flat bar 206 is deformed as a whole against the pressure of the fastening tab 208 and jacked up until the pushing protrusion 207 is snapped into the next feeding unit 106 again to be ready for the next pushing. Therefore, the driving handle 5 of the metal clamp driving structure is connected with the binding clip driving structure 3 and the metal clamp driving structure 4 at the same time, and when the metal clamp driving structure is used, the actions of closing the binding clip 1 and pushing the metal clamp can be realized only by operating the driving handle 5. Meanwhile, the driving handle 5 can drive the tong head driving structure 3 and the metal clamp driving structure 4 to move along opposite directions, so that the tong head 1 is opened when a metal clamp is pushed, and the metal clamp push rod assembly 202 is retracted and reset when the tong head 1 is clamped, thereby meeting the actual requirements of the operation process.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the forceps head 1, the forceps head push rod 2, the forceps head driving structure 3, the metal clip driving structure 4, the driving handle 5, the first transmission assembly 6, the second transmission assembly 7, the first transmission handle 61, the first driving groove 62, the second transmission handle 71, the second driving groove 72, the rotation connection point 73, the reverse push rod 74, the anti-drop part 75, the waist hole 76, the clip housing 101, the metal clip 102, the metal clip accommodating cavity 103, the feed rod accommodating cavity 104, the feed rod 105, the feed unit 106, the handle 107, the feed through hole 108, the cross beam 109, the mark 110, the elastic check sheet 111, the opening 112, the guide strip 113, the exoskeleton 201, the outer push rod assembly 202, the communication hole 203, the clip cavity 204, the rod body 205, the flat strip 206, the push protrusion 207, the fastening sheet 208, the limiting piece 209, the forward and reverse recognition piece 210, the insertion hole 211, the connection plate body 212, the blocking plate 213, the recognition plate 214, the identification plate 214, and the reverse identification plate 210, Stop surface 215, identification ramp 216, stop block 217, outer housing 300, etc., but does not preclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The utility model provides a running fire metal tongs, includes shell body (300), and binding clip push rod (2) are connected on shell body (300) and the one end of binding clip push rod (2) is equipped with binding clip (1), remove binding clip push rod (2) can drive binding clip (1) and open or press from both sides tightly its characterized in that: be equipped with cartridge clip mounting structure (200) on shell body (300) for cartridge clip subassembly (100) that hold two at least metal clips (102) are installed on cartridge clip mounting structure (200), cartridge clip mounting structure (200) are including being used for pushing away metal clip (102) metal clip push rod subassembly (202) to binding clip (1), the one end fixed connection that binding clip (1) were kept away from to metal clip push rod subassembly (202) is on metal clip drive structure (4), still including rotating drive handle (5) of connection on shell body (300), binding clip drive structure (3) and metal clip drive structure (4) all are connected with drive handle (5) drive, rotate drive handle (5) and can drive binding clip drive structure (3) and metal clip drive structure (4) and remove along opposite direction.

2. The metal pliers of claim 1, wherein: the cartridge clip mounting structure (200) comprises an outer framework (201), a cartridge clip cavity (204) used for containing the cartridge clip assembly (100) is arranged in the outer framework (201), an insertion opening (211) communicated with the cartridge clip cavity (204) is arranged at one end of the outer framework (201), and the cartridge clip mounting structure further comprises an outer push rod assembly (202) which is arranged outside the outer framework (201) and extends along the length direction of the outer framework (201), one end of the outer push rod component (202) is connected to the metal clip driving structure (4), the driving handle (5) is in driving connection with the metal clip driving structure (4), the metal clip driving structure (4) pushes the outer push rod assembly (202) to reciprocate along the length direction of the outer framework (201), the outer framework (201) is provided with a propulsion communication hole (203) which runs through the side wall of the outer framework (201), the push rod assembly (202) extends partially into the cartridge chamber (204) through the communication hole (203).

3. The metal pliers of claim 2, wherein: the outer push rod assembly (202) is including interconnect's the body of rod (205) and flat bar (206), the one end that the flat bar (206) was kept away from in the body of rod (205) is connected on metal clip drive structure (4), flat bar (206) laminating is on exoskeleton (201) surface, promotes protruding (207) fixed connection in flat bar (206) bottom surface, and promotes protruding (207) and extend to bullet clamp chamber (204) in through intercommunicating pore (203), still including setting up cramp (208) on exoskeleton (201), cramp (208) one end and exoskeleton (201) fixed connection fastened, the other end is pressed and is established on the surface of flat bar (206), cramp (208) and flat bar (206) are the sheet that is made by metal material.

4. The metal pliers of claim 1, wherein: be connected with first transmission assembly (6) and second transmission assembly (7) on actuating handle (5), the one end that actuating handle (5) were kept away from in first transmission assembly (6) is extended to the direction that is close to binding clip drive structure (3), the one end that actuating handle (5) were kept away from in second transmission assembly (7) is extended to the direction that is close to metal clip drive structure (4), rotates actuating handle (5), first transmission assembly (6) promote binding clip drive structure (3), second transmission assembly (7) promote metal clip drive structure (4), one in first transmission assembly (6) and the second transmission assembly (7) and actuating handle (5) fixed connection, another and actuating handle (5) swing joint, and the swing joint position is located actuating handle (5) center of rotation's below.

5. The metal pliers of claim 4, wherein: first transmission assembly (6) include first transmission handle (61) of one end fixed connection on drive handle (5), binding clip drive structure (3) lateral surface is equipped with to binding clip drive structure (3) inside sunken first drive recess (62), the one end that drive handle (5) were kept away from in first transmission handle (61) extends to first drive recess (62), rotates drive handle (5) and can make the tip of first transmission handle (61) remove and press and establish on binding clip drive structure (3) at first drive recess (62).

6. The metal pliers of claim 4, wherein: the second transmission assembly (7) comprises a second transmission handle (71) with one end rotatably connected to the outer shell (300), a second drive groove (72) which is sunken towards the inside of the metal clamp drive structure (4) is formed in the outer side surface of the metal clamp drive structure (4), one end, far away from a rotation connection point (73), of the second transmission handle (71) extends into the second drive groove (72), the second transmission assembly (7) further comprises a reverse push rod (74), one end of the reverse push rod (74) is rotatably connected with the drive handle (5), a connection point is located below a rotation center of the drive handle (5), the other end of the reverse push rod extends between the rotation connection point (73) and the second drive groove (72) and is rotatably connected with the second transmission handle (71), a connection column protrudes from the side surface of the second transmission handle (71), and one end, far away from the second transmission handle (71), of the connection column is fixedly connected with an anti-off part (75), one end of the reverse push rod (74) close to the second transmission handle (71) is provided with a waist hole (76), the connecting column is located in the waist hole (76), the length of the waist hole (76) is larger than the outer diameter of the connecting column, and the width of the waist hole (76) is smaller than the outer diameter of the anti-falling part (75).

7. The metal pliers of claim 2, wherein: also comprises a positive and negative identification piece (210) which is matched with the opening (112) on the cartridge clip component (100), the positive and negative identification piece (210) is positioned in the cartridge clip cavity (204) and is fixedly connected with one end of the outer framework (201) close to the insertion port (211), the positive and negative identification piece (210) comprises a connecting plate body (212) fixedly connected on the outer framework (201), one end of the connecting plate body (212) is connected with a blocking plate (213) and an identification plate (214), the blocking plate (213) and the identification plate (214) are arranged side by side, one side of the blocking plate (213) close to the insertion opening (211) is provided with a blocking surface (215), an identification inclined plane (216) is arranged on one side of the identification plate (214) close to the insertion opening (211), the angle of inclination of the identification ramp (216) is less than the angle of inclination of the blocking surface (215), and the end of the identification slope (216) is closer to the insertion opening (211) than the end of the blocking surface (215).

8. The metal pliers of claim 1, wherein: cartridge clip subassembly (100) includes cartridge clip casing (101), it holds cavity (103) to have the metal clip that is used for holding two at least metal clips (102) in cartridge clip casing (101), still be equipped with feed bar in cartridge clip casing (101) and hold cavity (104), feed bar (105) sliding connection holds cavity (104) in the feed bar, feed bar holds cavity (104) and metal clip and holds cavity (103) intercommunication each other, and slides feed bar (105) and can make the one end of feed bar (105) extend to in metal clip holds cavity (103).

9. The metal pliers of claim 8, wherein: the feeding rod (105) comprises a handle (107) and a feeding unit (106), one end, far away from the feeding unit (106), of the handle (107) extends out of the feeding rod accommodating cavity (104), the feeding unit (106) is provided with a plurality of feeding units which are sequentially connected end to end, and the feeding unit (106) comprises feeding through holes (108) and a feeding cross beam (109) arranged between the two feeding through holes (108); the cartridge clip casing (101) bottom surface still is connected with non return elastic sheet (111), non return elastic sheet (111) one end fixed connection is on cartridge clip casing (101) bottom surface, and the other end just extends in feed lever accommodation cavity (104) for the free end, and the free end of non return elastic sheet (111) is closer to metal clip (102) than the stiff end, surface closure under cartridge clip casing (101), upper surface have opening (112) that are the bar, opening (112) and metal clip accommodate cavity (103) and feed lever accommodation cavity (104) homogeneous phase intercommunication.

10. The metal pliers of claim 2, wherein: the cartridge clip mounting structure (200) further comprises a limiting block (217) rotatably connected with the outer framework (201), and the sliding metal clip driving structure (4) can enable the metal clip driving structure (4) to be arranged on the limiting block (217) in a pressing mode and enable one end of the limiting block (217) to extend into the cartridge clip cavity (204).