An electrode forceps having a forceps head which can be rotated at an arbitrary angle in the axial direction

Abstract

The present application relates to the technical field of medical apparatus and instruments, in particular to an electrode forceps with a forceps head capable of rotating at any angle along the axial direction, comprising: a forceps head assembly; a forceps head conductive assembly, comprising: a metal outer tube and a conductive pull rod; the metal outer tube is fixedly connected with a static clamping body of the forceps head assembly in conduction, and the conductive pull rod is fixedly connected with a dynamic clamping body of the forceps head assembly in conduction; a power supply mechanism, comprising: a first electrode sheet and a second electrode sheet; the first electrode sheet is in contact with the conductive pull rod in conduction, and the conductive pull rod rotates relative to the first electrode sheet; the second electrode sheet is in contact with an electrode forceps main shaft in conduction and is used for supplying power to the metal outer tube, and the electrode forceps main shaft rotates relative to the first electrode sheet; an insulating rotating wheel is sleeved on the metal outer tube and drives the forceps head assembly to rotate at any angle of 360 degrees along the circumference of the metal outer tube in the axial direction. The above structure can solve the problem that the electrode forceps in the prior art cannot stably and reliably supply power to the forceps head of the electrode forceps under the premise that the forceps head can rotate in the axial direction without limitation.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to an electrode clamp whose clamp head can rotate at any angle along the axial direction. Background Art

[0002] Energy medical devices are primarily used for tissue cutting during electrosurgery and for sealing blood vessels or tissue. Heat diffusion at the electrode's occluded location can cause thermal damage to adjacent or surrounding tissue, a critical issue that needs to be addressed during current clinical procedures.

[0003] Surgical electrode forceps are a commonly used energy medical device that includes a pair of jaw members that can be controlled to open and close to grasp the target tissue between the jaw members. The jaw members are close to each other to apply a mechanical clamping force to the tissue. At the same time, electrosurgical energy is transmitted to the tissue through one or more electrode surfaces of the jaw members to perform surgical operations such as electrocuting and electrocoagulation. For surgical electrode forceps, in order to facilitate medical personnel in performing surgical operations, the electrode forceps head needs to be able to rotate 360 ​​degrees at any angle in its axial direction and along the circumference of the electrode rod. However, in the prior art, for example, the patent application with publication number CN118121291A, paragraph 114 of its specification clearly states that the above-mentioned electrode forceps can only bend and change direction at the distal end of the forceps tip of the first clamping body. Electrode forceps in the prior art cannot achieve the goal of allowing the forceps head to rotate at any angle. In the existing technology, in the process of realizing that the clamp head of the electrode clamp can rotate 360 ​​degrees at any angle in its axial direction and along the circumference of the electrode rod, the technical problem that is difficult to solve is: during the process of rotating the clamp head at any angle, the power supply mechanism of the electrode clamp is difficult to stably and reliably supply power to the clamp head of the electrode clamp to perform electro-cutting and electro-coagulation surgical operations. Summary of the Invention

[0004] The present invention provides an electrode clamp with a clamp head that can rotate at any angle along the axial direction, so as to solve the problem that the electrode clamp in the prior art cannot stably and reliably supply power to the clamp head while ensuring unlimited axial rotation of the clamp head. In order to solve the above problem, the technical solution of the present invention is:

[0005] An electrode clamp with a clamp head that can rotate at any angle along the axis, comprising

[0006] The clamp head assembly comprises: a movable clamping body and a static clamping body connected in an articulated manner; the movable clamping body and the static clamping body are respectively connected to one of the positive pole and the negative pole of the circuit to realize power supply of the clamp head assembly;

[0007] The clamp head conductive assembly comprises: a metal outer tube, and a conductive pull rod driven to be telescopically disposed within the metal outer tube; the metal outer tube is conductively and fixedly connected to the static clamping body, and the conductive pull rod is conductively and fixedly connected to the dynamic clamping body, and drives the dynamic clamping body to complete the clamping and opening actions of the clamp head assembly; the metal outer tube is cooperatively connected to the electrode clamp main shaft and rotates synchronously with it, and the electrode clamp main shaft is a conductor;

[0008] The power supply mechanism includes: a power supply, and a first electrode sheet and a second electrode sheet conductively connected to the power supply; the first electrode sheet is in contact with the conductive pull rod to conduct electricity, and the conductive pull rod is driven to rotate in its circumferential direction relative to the first electrode sheet; the second electrode sheet is in contact with the main shaft of the electrode clamp to conduct electricity and is used to supply power to the metal outer tube, and the main shaft of the electrode clamp is driven to rotate in its circumferential direction relative to the first electrode sheet;

[0009] The insulating rotating wheel is sleeved on the metal outer tube to drive the dynamic clamping body and the static clamping body to rotate synchronously through the clamp head conductive component. The clamp head component is driven to rotate 360 ​​degrees in its axial direction and along the circumference of the metal outer tube.

[0010] Optionally, the power supply mechanism further comprises: a coupling block; the coupling block is a conductor with a hollow cylindrical structure, and the main shaft of the electrode clamp is conductively and fixedly connected to the metal outer tube through the coupling block;

[0011] One end of the coupling block is a connecting end surface that is in contact with and electrically connected to the main shaft of the electrode clamp, and the other end of the coupling block is an open end;

[0012] The metal outer tube extends from the open end into the inner cavity wall of the coupling block and is fixed to the inner cavity wall of the coupling block; a rod socket for the conductive pull rod to extend into the inner cavity of the coupling block is provided on the connecting end surface; an insulating gap exists between the conductive pull rod and the rod socket of the coupling block, and an insulating gap exists between the conductive pull rod and the metal outer tube;

[0013] When the insulating rotating wheel drives the metal outer tube to rotate, the metal outer tube drives the main shaft of the electrode clamp to rotate synchronously through the coupling block.

[0014] Optionally, an annular groove adapted to the metal outer tube is provided on the inner cavity wall of the coupling block close to the open end.

[0015] Optionally, the clamp head assembly has a clamp head heat exchange cavity for cooling medium to pass through; the clamp head heat exchange cavity is arranged in the static clamping body;

[0016] The electrode clamp further includes: an electrode clamp cooling system, including: a sealing bracket and a circulating water circuit; the sealing bracket is sleeved on the electrode clamp main shaft, and the insulating wheel drives the electrode clamp main shaft through the metal outer tube;

[0017] The electrode clamp main shaft is driven by the insulating rotary wheel and is sealed and rotatably connected with the sealing bracket along its circumferential direction; the sealing bracket and the electrode clamp main shaft form a cooling cavity for accommodating a cooling medium, and the cooling cavity is connected to the clamp head heat exchange cavity.

[0018] Optionally, the cooling cavity includes: a liquid inlet cavity and a liquid discharge cavity; the circulating water circuit includes: a liquid inlet pipe connected to the liquid inlet cavity, and a liquid discharge pipe connected to the liquid discharge cavity;

[0019] Two grooves are formed on the main shaft of the electrode clamp, corresponding to the liquid inlet cavity and the liquid discharge cavity respectively; and a channel for a coolant conduit to pass through is also provided on the side wall of each groove; the coolant conduit is connected to the heat exchange cavity of the clamp head;

[0020] A through hole for the coolant conduit to pass through is also provided on the connecting end surface of the coupling block.

[0021] Optionally, a positioning groove adapted to the coolant conduit is provided on the inner cavity wall of the coupling block close to the connecting end surface.

[0022] Optionally, the positive electrode of the power supply is conductively connected to the first electrode sheet, and the negative electrode of the power supply is conductively connected to the second electrode sheet.

[0023] Optionally, an annular boss is provided on the main shaft of the electrode clamp; there are two sealing brackets, which are respectively provided on both sides of the annular boss of the main shaft of the electrode clamp to form the liquid inlet cavity and the liquid discharge cavity respectively;

[0024] Dynamic sealing rings are provided on the connection surface between the sealing bracket and the main shaft of the electrode clamp, respectively located at two ends of the length direction of the liquid inlet cavity and the liquid discharge cavity.

[0025] Optionally, the second electrode sheet is in contact with and electrically connected to the annular boss of the electrode clamp main shaft, and the electrode clamp main shaft rotates relative to the second electrode sheet under the drive of the insulating rotary wheel.

[0026] Optionally, a pipeline support is provided on the sealing bracket, and the shape of the pipeline support is respectively adapted to the liquid inlet pipe and the liquid discharge pipe, and is suitable for fixing the circulating water circuit and making it turn and extend into the cooling chamber;

[0027] The sealing bracket is fixedly connected to the outer shell of the electrode clamp.

[0028] The technical solution of the present invention has the following advantages:

[0029] 1. The present invention provides an electrode clamp with a clamp head that can rotate at any angle along the axial direction, comprising:

[0030] The clamp head assembly comprises: a movable clamping body and a static clamping body connected in an articulated manner; the movable clamping body and the static clamping body are respectively connected to one of the positive pole and the negative pole of the circuit to realize power supply of the clamp head assembly;

[0031] The clamp head conductive assembly comprises: a metal outer tube, and a conductive pull rod driven to be telescopically disposed within the metal outer tube; the metal outer tube is conductively and fixedly connected to the static clamping body, and the conductive pull rod is conductively and fixedly connected to the dynamic clamping body, and drives the dynamic clamping body to complete the clamping and opening actions of the clamp head assembly; the metal outer tube is cooperatively connected to the electrode clamp main shaft and rotates synchronously with it, and the electrode clamp main shaft is a conductor;

[0032] The power supply mechanism includes: a power supply, and a first electrode sheet and a second electrode sheet conductively connected to the power supply; the first electrode sheet is in contact with the conductive pull rod to conduct electricity, and the conductive pull rod is driven to rotate in its circumferential direction relative to the first electrode sheet; the second electrode sheet is in contact with the main shaft of the electrode clamp to conduct electricity and is used to supply power to the metal outer tube, and the main shaft of the electrode clamp is driven to rotate in its circumferential direction relative to the first electrode sheet;

[0033] The insulating rotating wheel is sleeved on the metal outer tube to drive the dynamic clamping body and the static clamping body to rotate synchronously through the clamp head conductive component. The clamp head component is driven to rotate 360 ​​degrees in its axial direction and along the circumference of the metal outer tube.

[0034] First, in order to achieve the 360-degree rotation of the pliers head in its axial direction and circumferentially along the length of the pliers head, the present invention uses an insulating rotating wheel mounted on the metal outer tube to drive the pliers head conductive component to rotate at any angle along its circumferential direction, thereby driving the pliers head assembly to achieve 360-degree rotation. This structure can effectively achieve the requirement of 360-degree rotation of the pliers head assembly in the circumferential direction along the length of the pliers head.

[0035] More importantly, in order to solve the problem that the electrode clamp cannot stably and reliably supply power to the clamp head of the electrode clamp while ensuring unlimited axial rotation of the clamp head, the present invention further discloses that: the first electrode sheet is in contact with the above-mentioned conductive pull rod for electrical conduction, and when the conductive pull rod is driven to rotate in its circumferential direction relative to the first electrode sheet, the power supply is electrically connected to the conductive pull rod through the first electrode sheet, and then electrically connected to the dynamic clamping body through the conductive pull rod. In addition, the present invention further discloses that: the second electrode sheet is in contact with the main shaft of the electrode clamp for electrical conduction, and when the main shaft of the electrode clamp is driven to rotate in its circumferential direction relative to the first electrode sheet, the power supply is electrically connected to the main shaft of the electrode clamp through the second electrode sheet, thereby achieving electrical connection between the second electrode sheet, the main shaft of the electrode clamp, the metal outer tube, and the static clamping body in sequence. In the process of the insulating wheel driving the conductive component of the clamp head to rotate at any angle along its circumferential direction, the above-mentioned conductive pull rod and the main shaft of the electrode clamp rotate synchronously, and the first electrode plate and the second electrode plate remain stationary, contacting and rotating in a conductive state relative to the above-mentioned conductive pull rod and the main shaft of the electrode clamp respectively, thereby achieving the premise of unlimited axial rotation of the clamp head and stably and reliably powering the clamp head of the electrode clamp through the power supply.

[0036] 2. The present invention provides an electrode clamp with a clamp head that can rotate axially at any angle. The power supply mechanism further includes: a coupling block; the coupling block is a conductor with a hollow cylindrical structure, and the main shaft of the electrode clamp is conductively and fixedly connected to the metal outer tube through the coupling block;

[0037] One end of the coupling block is a connecting end surface that is in contact with and electrically connected to the main shaft of the electrode clamp, and the other end of the coupling block is an open end;

[0038] The metal outer tube extends from the open end into the inner cavity wall of the coupling block and is fixed to the inner cavity wall of the coupling block; a rod socket for the conductive pull rod to extend into the inner cavity of the coupling block is provided on the connecting end surface; an insulating gap exists between the conductive pull rod and the rod socket of the coupling block, and an insulating gap exists between the conductive pull rod and the metal outer tube;

[0039] When the insulating rotating wheel drives the metal outer tube to rotate, the metal outer tube drives the main shaft of the electrode clamp to rotate synchronously through the coupling block.

[0040] In the present invention, the electrode clamp main shaft is conductively and fixedly connected to the metal outer tube via a coupling block. The electrode clamp main shaft and the connecting end surface of the coupling block are in contact and conductively connected, and the inner cavity wall of the coupling block is conductively and fixedly connected to the metal outer tube. This achieves conductive connection between the electrode clamp main shaft and the metal outer tube, thereby achieving sequential electrical connection between the second electrode sheet, the electrode clamp main shaft, the metal outer tube, and the static clamping body.

[0041] Furthermore, the coupling block includes a rod receptacle on its connecting end face for a conductive rod to extend into the coupling block's interior. An insulating gap exists between the conductive rod and the coupling block, ensuring that the rod can pass through the coupling block without conducting electricity thereto. This ensures that the positive and negative poles of the power supply are electrically connected to the conductive rod and the metal outer tube, respectively. This ensures that the power supply mechanism provides stable and reliable power to the electrode clamp, whose clamp head can rotate axially to any angle.

[0042] 3. The electrode pliers provided by the present invention have a pliers head that can rotate at any angle along the axial direction, and an annular groove that is compatible with the metal outer tube is provided on the inner cavity wall of the coupling block near the open end.

[0043] In the present invention, an annular groove is provided on the inner cavity wall of the coupling block, and the annular groove is connected to the metal outer tube, so that the metal outer tube can be firmly and reliably fixed, and the metal outer tube and the conductive pull rod are kept away from each other, ensuring that the positive and negative poles of the power supply are respectively connected to the conductive pull rod and the metal outer tube.

[0044] 4. The present invention provides an electrode clamp with a clamp head that can rotate at any angle along the axial direction, wherein the clamp head assembly has a clamp head heat exchange cavity for passing a cooling medium; the clamp head heat exchange cavity is arranged in the static clamp body;

[0045] The electrode clamp further includes: an electrode clamp cooling system, including: a sealing bracket and a circulating water circuit; the sealing bracket is sleeved on the electrode clamp main shaft, and the insulating wheel drives the electrode clamp main shaft through the metal outer tube;

[0046] The electrode clamp main shaft is driven by the insulating rotary wheel and is sealed and rotatably connected with the sealing bracket along its circumferential direction; the sealing bracket and the electrode clamp main shaft form a cooling cavity for accommodating a cooling medium, and the cooling cavity is connected to the clamp head heat exchange cavity.

[0047] The present invention also addresses the problem that prior art electrode clamps cannot simultaneously meet the cooling and heat dissipation requirements of the clamp head region while ensuring unrestricted axial rotation of the clamp head. To this end, the present invention specifically discloses a clamp head heat exchange channel within the clamp head assembly, which provides a cooling medium. Furthermore, an electrode clamp cooling system is provided. A sealing bracket of the electrode clamp cooling system is mounted on the electrode clamp main shaft. During rotation of the electrode clamp main shaft with the clamp head conductive assembly and the clamp head assembly, the sealing bracket remains stationary relative to the electrode clamp main shaft, enabling unrestricted axial rotation of the electrode clamp main shaft while maintaining a sealed cooling chamber. The sealing bracket and the electrode clamp main shaft define a cooling chamber for accommodating the cooling medium. A circulating water circuit of the electrode clamp cooling system supplies the cooling medium to the cooling chamber, which is connected to the clamp head heat exchange channel. Driven by an insulating rotor, the electrode clamp main shaft can freely rotate, driving the clamp head assembly to freely rotate. This solves the cooling and heat dissipation requirements of the clamp head region of the electrode clamp, which can achieve 360-degree circumferential rotation at any angle.

[0048] 5. The electrode pliers provided by the present invention have a pliers head that can rotate along the axial direction at any angle, wherein the cooling chamber includes: a liquid inlet chamber and a liquid discharge chamber; the circulating water circuit includes: a liquid inlet pipe connected to the liquid inlet chamber, and a liquid discharge pipe connected to the liquid discharge chamber;

[0049] Two grooves are formed on the main shaft of the electrode clamp, corresponding to the liquid inlet cavity and the liquid discharge cavity respectively; and a channel for a coolant conduit to pass through is also provided on the side wall of each groove; the coolant conduit is connected to the heat exchange cavity of the clamp head;

[0050] A through hole for the coolant conduit to pass through is also provided on the connecting end surface of the coupling block.

[0051] In the present invention, the cooling chamber consists of a liquid inlet cavity and a liquid discharge cavity. The liquid inlet pipe of the circulating water circuit is connected to the liquid inlet cavity, and the liquid discharge pipe of the circulating water circuit is connected to the liquid discharge cavity. Subsequently, the liquid inlet cavity and the liquid discharge cavity are connected to the aforementioned clamp head heat exchange cavity through a coolant conduit, thereby circulating the coolant in the clamp head heat exchange cavity and ensuring effective cooling and heat dissipation in the clamp head area.

[0052] Moreover, in the present invention, a through hole for the coolant conduit to pass through is provided on the connecting end face of the above-mentioned coupling block. The coolant conduit can pass through the coupling block and the metal outer tube in sequence through the above-mentioned through hole and be connected to the heat exchange cavity of the clamp head.

[0053] 6. The electrode pliers provided by the present invention have a pliers head that can rotate at any angle along the axial direction, and a positioning groove that is compatible with the coolant conduit is provided on the inner cavity wall of the coupling block close to the connecting end surface.

[0054] The positioning groove can be used to limit and fix the coolant conduit, ensuring that the coolant conduit stably and reliably rotates synchronously with the metal outer tube.

[0055] 7. The present invention provides an electrode clamp with a clamp head that can rotate along the axial direction at any angle. The main shaft of the electrode clamp is provided with an annular boss. Two sealing brackets are provided, one on each side of the annular boss of the main shaft of the electrode clamp, to form the liquid inlet cavity and the other on the liquid discharge cavity.

[0056] Dynamic sealing rings are provided on the connection surface between the sealing bracket and the main shaft of the electrode clamp, respectively located at two ends of the length direction of the liquid inlet cavity and the liquid discharge cavity.

[0057] In the present invention, the annular boss divides the liquid inlet and liquid outlet cavities into two sections, each corresponding to a separate sealing bracket. The two sealing brackets are respectively adapted to the electrode clamp main shaft and remain stationary during the rotation of the electrode clamp main shaft, forming the liquid inlet and liquid outlet cavities, respectively. This structure effectively circulates the cooling medium, ensuring stable and reliable operation of the electrode clamp cooling system.

[0058] At the same time, in order to ensure the sealing effect of the relatively rotating connection surface between the sealing bracket and the electrode clamp main shaft, the above-mentioned dynamic sealing ring is provided on the connection surface between the sealing bracket and the electrode clamp main shaft.

[0059] 8. The present invention provides an electrode clamp whose clamp head can rotate at any angle along the axial direction, the second electrode piece is in contact with and conductively connected to the annular boss of the electrode clamp main shaft, and the electrode clamp main shaft rotates relative to the second electrode piece under the drive of the insulating rotary wheel.

[0060] In the present invention, by connecting the second electrode sheet to the annular boss of the electrode clamp main shaft for electrical contact and conduction, the spatial layout of the electrode clamp can be optimized, allowing the second electrode sheet to stably and reliably contact the annular boss for electrical contact and conduction, while not affecting the driven rotation of the electrode clamp main shaft relative to the second electrode sheet along its circumferential direction.

[0061] 9. The present invention provides an electrode clamp whose clamp head can rotate at any axial angle. A pipeline support is provided on the sealing bracket. The shapes of the pipeline support are respectively adapted to the liquid inlet pipe and the liquid discharge pipe, and are suitable for fixing the circulating water circuit and turning it to extend into the cooling chamber; the sealing bracket is fixedly connected to the outer shell of the electrode clamp.

[0062] In the present invention, by arranging a pipeline support on the sealing bracket, the pipeline support can effectively fix the above-mentioned circulating water circuit, ensure that the circulating water circuit remains stationary relative to the electrode clamp main axis, and stably and reliably provide cooling medium circulation for the liquid inlet cavity and the liquid discharge cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0064] Figure 1 A schematic diagram of the positive and negative electrodes of the electrode clamp provided by the present invention, wherein the clamp head can rotate at any angle along the axial direction;

[0065] Figure 2 A partially enlarged schematic diagram of the internal structure of the electrode clamp provided by the present invention;

[0066] Figure 3 A partially enlarged cross-sectional view of the longitudinal section of the electrode clamp provided by the present invention;

[0067] Figure 4 A schematic diagram of the connection structure of the metal outer tube and the electrode clamp main shaft connected together by a coupling block provided by the present invention;

[0068] Figure 5 A schematic diagram of the three-dimensional structure of one end of the coupling block provided by the present invention having a pull rod socket;

[0069] Figure 6 A schematic diagram of the three-dimensional structure of one end of the coupling block provided by the present invention having an open end;

[0070] Figure 7 A schematic diagram of the installation positions of the first electrode sheet and the second electrode sheet of the electrode clamp provided by the present invention, wherein the clamp head can rotate at any angle along the axial direction;

[0071] Figure 8 A schematic diagram of the three-dimensional structure of the clamp head assembly provided by the present invention;

[0072] Figure 9 A schematic diagram of the cooling medium flow in the electrode clamp cooling system provided by the present invention;

[0073] Figure 10 A schematic diagram of the assembly structure of the relatively rotating sealing bracket and the electrode clamp main shaft provided by the present invention;

[0074] Figure 11 A schematic diagram of the internal structure of the main shaft of the electrode clamp provided by the present invention;

[0075] Figure 12 This is a schematic diagram of the three-dimensional structure of the electrode clamp provided by the present invention.

[0076] Description of reference numerals:

[0077] 1-dynamic clamping body; 2-static clamping body; 3-metal outer tube; 4-conductive pull rod; 5-electrode clamp main shaft; 6-first electrode sheet; 7-second electrode sheet; 8-insulating runner; 9-coupling block; 10-pull rod socket; 11-connecting end face; 12-open end; 13-clamp head heat exchange cavity; 14-sealing bracket; 15-liquid inlet cavity; 16-liquid discharge cavity; 17-liquid inlet pipe; 18-liquid discharge pipe; 19-through hole; 20-groove; 21-cooling liquid conduit; 22-power supply; 23-annular boss; 24-dynamic sealing ring; 25-pipeline support; 26-outer shell; 27-annular groove; 28-positioning groove. DETAILED DESCRIPTION

[0078] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0079] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0080] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0081] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0082] Example 1

[0083] See Figure 1 、 Figure 2 as well as Figure 12 , Figure 1A schematic diagram of the positive and negative poles of an electrode clamp whose clamp head can rotate at any angle along the axial direction in an embodiment of the present invention is shown. Figure 2 A partially enlarged schematic diagram of the internal structure of the electrode clamp in an embodiment of the present invention is shown. Figure 12 A schematic diagram of the three-dimensional structure of the electrode clamp in an embodiment of the present invention is shown.

[0084] This embodiment provides an electrode clamp with a clamp head that can rotate at any angle along the axis, comprising:

[0085] Clamp head assembly, such as Figure 8 As shown, it comprises: a dynamic clamping body 1 and a static clamping body 2 which are hingedly connected; the dynamic clamping body 1 and the static clamping body 2 are respectively connected to the positive pole and the negative pole of the circuit to realize the power supply of the clamp head assembly;

[0086] The pliers head conductive assembly comprises: a metal outer tube 3, and a conductive pull rod 4 driven to be telescopically disposed within the metal outer tube 3; the metal outer tube 3 is conductively and fixedly connected to the static clamping body 2, and the conductive pull rod 4 is conductively and fixedly connected to the dynamic clamping body 1, and drives the dynamic clamping body 1 to complete the clamping and opening actions of the pliers head assembly; the metal outer tube 3 is cooperatively connected to the electrode clamp main shaft 5 and rotates synchronously with it, and the electrode clamp main shaft 5 is a conductor;

[0087] Power supply agencies, such as Figure 1 As shown, it includes: a power supply 22, and a first electrode sheet 6 and a second electrode sheet 7 connected to the power supply 22; the positive electrode of the power supply 22 is connected to the first electrode sheet 6, and the negative electrode of the power supply 22 is connected to the second electrode sheet 7. Figure 7 As shown, the first electrode sheet 6 is in contact with the conductive pull rod 4 for electrical conduction, and the conductive pull rod 4 is driven to rotate in its circumferential direction relative to the first electrode sheet 6; the second electrode sheet 7 is in contact with the electrode clamp main shaft 5 for electrical conduction, and is used to supply power to the metal outer tube 3, and the electrode clamp main shaft 5 is driven to rotate in its circumferential direction relative to the first electrode sheet 6;

[0088] The insulating wheel 8 is sleeved on the metal outer tube 3 to drive the dynamic clamping body 1 and the static clamping body 2 to rotate synchronously through the clamp head conductive component. The clamp head component is driven to rotate 360 ​​degrees in its axial direction and along the circumference of the metal outer tube 3.

[0089] In this embodiment, in order to ensure that the positive and negative electrodes of the power supply 22 are respectively connected to the conductive pull rod 4 and the metal outer tube 3, the power supply mechanism stably and reliably supplies power to the electrode clamp whose clamp head can rotate at any angle along the axial direction. Figure 3 and Figure 4 , Figure 3 A partially enlarged longitudinal section of the electrode clamp is shown. Figure 4A schematic diagram of the connection structure of the metal outer tube and the electrode clamp main shaft connected together by a coupling block is shown.

[0090] The power supply mechanism further includes: a coupling block 9; the coupling block 9 is a conductor with a hollow cylindrical structure, and the electrode clamp main shaft 5 is conductively and fixedly connected to the metal outer tube 3 through the coupling block 9;

[0091] like Figure 5 and Figure 6 As shown, one end of the coupling block 9 is a connecting end surface 11 that is in contact with and electrically connected to the main shaft 5 of the electrode clamp, and the other end of the coupling block 9 is an open end 12;

[0092] The metal outer tube 3 extends from the open end 12 into the inner wall of the coupling block 9 and is fixed thereto; a rod socket 10 is provided on the connecting end surface 11 for the conductive rod 4 to extend into the inner cavity of the coupling block 9; an insulating gap exists between the diameters of the conductive rod 4 and the rod socket 10 of the coupling block 9, and an insulating gap exists between the conductive rod 4 and the metal outer tube 3;

[0093] When the insulating rotating wheel 8 drives the metal outer tube 3 to rotate, the metal outer tube 3 drives the electrode clamp main shaft 5 to rotate synchronously through the coupling block 9 .

[0094] Furthermore, in order to firmly and reliably fix the metal outer tube 3 and keep the metal outer tube 3 and the conductive rod 4 away from each other, and ensure that the positive and negative electrodes of the power supply 22 are electrically connected to the conductive rod 4 and the metal outer tube 3 respectively, an annular groove 27 adapted to the metal outer tube 3 is provided on the inner wall of the coupling block 9 near the open end 12.

[0095] See Figure 9 , Figure 9 The schematic diagram of the cooling medium flow in the electrode clamp cooling system is shown. In this embodiment, the electrode clamp can effectively meet the requirements of unlimited axial rotation of the clamp head while ensuring the cooling and heat dissipation needs of the clamp head area of ​​the electrode clamp.

[0096] like Figure 8 As shown, there is a clamp head heat exchange cavity 13 for the cooling medium to pass through in the clamp head assembly;

[0097] The electrode clamp further includes: an electrode clamp cooling system, including: a sealing bracket 14, and a circulating water circuit; the sealing bracket 14 is sleeved on the electrode clamp main shaft 5, and the insulating wheel 8 drives the electrode clamp main shaft 5 through the metal outer tube 3;

[0098] Driven by the insulating rotor 8, the electrode clamp main shaft 5 is sealed and rotatably connected with the sealing bracket 14 along its circumferential direction; the sealing bracket 14 and the electrode clamp main shaft 5 form a cooling cavity for accommodating a cooling medium, and the cooling cavity is connected to the clamp head heat exchange cavity 13.

[0099] Furthermore, in order to realize the circulation of the cooling medium and ensure the stable and reliable operation of the electrode clamp cooling system, the cooling chamber includes: a liquid inlet chamber 15 and a liquid discharge chamber 16; the circulating water circuit includes: a liquid inlet pipe 17 connected to the liquid inlet chamber 15, and a liquid discharge pipe 18 connected to the liquid discharge chamber 16;

[0100] like Figure 11 As shown, two grooves 20 corresponding to the liquid inlet cavity 15 and the liquid discharge cavity 16 are formed on the main shaft 5 of the electrode clamp; and a channel for a cooling liquid conduit 21 to pass through is also provided on the side wall of each of the grooves 20; the cooling liquid conduit 21 is connected to the clamp head heat exchange cavity 13.

[0101] In the present invention, Figure 5 and Figure 6 As shown, the connecting end face 11 of the coupling block 9 is also provided with a through hole 19 for the coolant conduit 21 to pass through. This through hole 19 allows the coolant conduit 21 to sequentially pass through the coupling block 9 and the metal outer tube 3, connecting with the clamp head heat exchange channel 13. A positioning groove 28 is provided on the inner wall of the coupling block 9 near the connecting end face 11, which is compatible with the coolant conduit 21. This positioning groove 28 allows the coolant conduit 21 to be fixed in place, ensuring that it stably and reliably rotates synchronously with the metal outer tube 3.

[0102] In order to achieve the separation of the liquid inlet cavity 15 and the liquid outlet cavity 16 and ensure the stable and reliable operation of the electrode clamp cooling system, the spatial layout of the electrode clamp is optimized to ensure that the second electrode sheet 7 is in stable and reliable contact with the annular boss 23 for electrical conduction, while not affecting the driven rotation of the electrode clamp main shaft 5 relative to the second electrode sheet 7 along its circumferential direction.

[0103] See Figure 7 and Figure 10 , Figure 7 A schematic diagram showing the installation positions of the first electrode piece and the second electrode piece of the electrode clamp is shown. Figure 10The figure shows a schematic diagram of the assembly structure of the relatively rotating sealing bracket and electrode clamp main shaft. In this embodiment, the electrode clamp main shaft 5 is provided with an annular boss 23. Two sealing brackets 14 are provided, one on each side of the annular boss 23 of the electrode clamp main shaft 5, to form the liquid inlet cavity 15 and the other on the liquid outlet cavity 16. Dynamic sealing rings 24 are provided on the connecting surface between the sealing bracket 14 and the electrode clamp main shaft 5, respectively, at the longitudinal ends of the liquid inlet cavity 15 and the liquid outlet cavity 16.

[0104] Furthermore, the second electrode sheet 7 is in contact with and electrically connected to the annular boss 23 of the electrode clamp main shaft 5 , and the electrode clamp main shaft 5 is driven by the insulating rotary wheel 8 to rotate relative to the second electrode sheet 7 .

[0105] In this embodiment, in order to fix the above-mentioned circulating water circuit and ensure that the circulating water circuit remains stationary relative to the electrode clamp main shaft 5, a stable and reliable cooling medium circulation is provided for the liquid inlet cavity 15 and the liquid discharge cavity 16. Figure 10 As shown, a pipeline support 25 is provided on the sealing bracket 14. The shapes of the pipeline support 25 are respectively adapted to the liquid inlet pipe 17 and the liquid discharge pipe 18, suitable for fixing the circulating water circuit and turning it to extend into the cooling chamber; the sealing bracket 14 is fixedly connected to the outer shell 26 of the electrode clamp.

[0106] Of course, in this embodiment, there is no specific limitation on the connection targets of the positive and negative electrodes of the power supply 22. In other embodiments, the clamp head assembly includes: a movable clamping body 1 and a static clamping body 2 that are hingedly connected; the movable clamping body 1 and the static clamping body 2 are connected to the negative and positive electrodes of the circuit, respectively. The positive electrode of the power supply 22 is electrically connected to the second electrode sheet 7, and the negative electrode of the power supply 22 is electrically connected to the first electrode sheet 6.

[0107] Of course, in this embodiment, whether the annular groove 27 is provided on the inner wall of the coupling block 9 is not specifically limited. In other embodiments, the metal outer tube 3 is directly fixedly connected to the inner wall of the coupling block 9 .

[0108] Of course, in this embodiment, there is no specific limitation on whether a positioning groove 28 is provided on the inner wall of the coupling block 9. In other embodiments, a positioning groove 28 compatible with the coolant conduit 21 is not provided on the inner wall of the coupling block 9 close to the connecting end face 11, and the coolant conduit 21 is directly fixed on the inner wall of the coupling block 9.

[0109] Of course, in this embodiment, the specific setting position of the clamp head heat exchange cavity 13 is not specifically limited. In other embodiments, the clamp head assembly includes: a movable clamping body 1 and a static clamping body 2 that are hingedly connected; the above-mentioned clamp head heat exchange cavity 13 is respectively arranged in the static clamping body 2 and the dynamic clamping body 1; or, the above-mentioned clamp head heat exchange cavity 13 is arranged in one of the static clamping body 2 and the dynamic clamping body 1.

[0110] Of course, in this embodiment, there is no specific limitation on the cooling medium circulating in the clamp head heat exchange cavity 13. In other embodiments, the cooling medium may also be other cooling media besides water, such as cooling air.

[0111] Of course, in this embodiment, whether an annular boss 23 is provided on the electrode clamp main shaft 5; and the specific number of the sealing bracket 14 is not specifically limited. In other embodiments, there is one sealing bracket 14, and the sealing bracket 14 dynamically cooperates with the electrode clamp main shaft 5. The two parts of the sealing bracket 14 respectively form the liquid inlet cavity 15 and the liquid discharge cavity 16 with the electrode clamp main shaft 5.

[0112] Of course, in this embodiment, there is no specific limitation on whether the above-mentioned groove 20 is provided on the electrode clamp main shaft 5. In other embodiments, the groove 20 can also be provided on the sealing bracket 14, so that the sealing bracket 14 and the electrode clamp main shaft 5 connected by dynamic sealing form the above-mentioned liquid inlet cavity 15 and liquid discharge cavity 16.

[0113] Of course, in this embodiment, there is no specific limitation on whether the above-mentioned dynamic sealing ring 24 is provided on the connection surface between the sealing bracket 14 and the electrode clamp main shaft 5. In other embodiments, the dynamic sealing ring 24 is not provided on the connection surface between the sealing bracket 14 and the electrode clamp main shaft 5. By ensuring the processing accuracy, it is ensured that the above-mentioned liquid inlet cavity 15 and the liquid discharge cavity 16 will not have the problem of cooling medium leakage.

[0114] Of course, in this embodiment, whether the pipeline support 25 is provided on the sealing bracket 14 is not specifically limited. In other embodiments, the liquid inlet pipe 17 and the liquid outlet pipe 18 can also be fixed on the outer shell 26 of the electrode clamp.

[0115] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An electrode clamp with a clamp head that can rotate at any angle along the axial direction, characterized in that: include: The clamp head assembly comprises: a movable clamping body (1) and a static clamping body (2) which are hingedly connected; the movable clamping body (1) and the static clamping body (2) are respectively connected to one of the positive pole and the negative pole of the circuit to realize the power supply of the clamp head assembly; The clamp head conductive assembly comprises: a metal outer tube (3), and a conductive pull rod (4) which is driven to be telescopically arranged in the metal outer tube (3); the metal outer tube (3) is conductively fixedly connected to the static clamping body (2), and the conductive pull rod (4) is conductively fixedly connected to the dynamic clamping body (1) and drives the dynamic clamping body (1) to complete the clamping and opening actions of the clamp head assembly; the metal outer tube (3) is cooperatively connected to the electrode clamp main shaft (5) and rotates synchronously, and the electrode clamp main shaft (5) is a conductor; The power supply mechanism comprises: a power supply (22), and a first electrode sheet (6) and a second electrode sheet (7) electrically connected to the power supply (22); the first electrode sheet (6) is in direct contact with the conductive pull rod (4) for electrical conduction, and the conductive pull rod (4) is driven to rotate in its circumferential direction relative to the first electrode sheet (6); the second electrode sheet (7) is in contact with the electrode clamp main shaft (5) for electrical conduction and is used to supply power to the metal outer tube (3), and the electrode clamp main shaft (5) is driven to rotate in its circumferential direction relative to the second electrode sheet (7); An insulating rotating wheel (8) is sleeved on the metal outer tube (3) to drive the dynamic clamping body (1) and the static clamping body (2) to rotate synchronously through the clamp head conductive component, and the clamp head component is driven to rotate at any angle of 360 degrees in its axial direction and along the circumference of the metal outer tube (3); An annular boss (23) is provided on the electrode clamp main shaft (5); the second electrode sheet (7) is in contact with and electrically connected to the annular boss (23) of the electrode clamp main shaft (5), and the electrode clamp main shaft (5) rotates relative to the second electrode sheet (7) under the drive of the insulating rotating wheel (8).

2. The electrode clamp with a clamp head that can rotate at any angle along the axial direction according to claim 1, characterized in that: The power supply mechanism further comprises: a coupling block (9); the coupling block (9) is a conductor with a hollow cylindrical structure, and the electrode clamp main shaft (5) is conductively and fixedly connected to the metal outer tube (3) through the coupling block (9); One end of the coupling block (9) is a connecting end surface (11) that is in contact with and electrically connected to the electrode clamp main shaft (5), and the other end of the coupling block (9) is an open end (12); The metal outer tube (3) extends from the open end (12) into the inner cavity wall of the coupling block (9) and is fixed thereto; a rod socket (10) for the conductive pull rod (4) to extend into the inner cavity of the coupling block (9) is provided on the connection end surface (11); the conductive pull rod (4) and the rod socket (10) of the coupling block (9) have an insulating gap in diameter, and an insulating gap exists between the conductive pull rod (4) and the metal outer tube (3); During the process of the insulating rotating wheel (8) driving the metal outer tube (3) to rotate, the metal outer tube (3) drives the electrode clamp main shaft (5) to rotate synchronously via the coupling block (9).

3. The electrode clamp with a clamp head that can rotate at any angle along the axial direction according to claim 2, characterized in that: An annular groove (27) adapted to the metal outer tube (3) is provided on the inner cavity wall of the coupling block (9) close to the open end (12).

4. The electrode clamp with a clamp head that can rotate at any angle along the axial direction according to claim 2, characterized in that: The clamp head assembly has a clamp head heat exchange cavity (13) for the cooling medium to pass through; The electrode clamp further comprises: an electrode clamp cooling system, comprising: a sealing bracket (14), and a circulating water circuit; the sealing bracket (14) is sleeved on the electrode clamp main shaft (5), and the insulating wheel (8) drives the electrode clamp main shaft (5) to rotate through the metal outer tube (3); The electrode clamp main shaft (5) is driven by the insulating rotary wheel (8) and is sealed and rotationally connected with the sealing bracket (14) along its circumferential direction; the sealing bracket (14) and the electrode clamp main shaft (5) form a cooling cavity for accommodating a cooling medium, and the cooling cavity is connected to the clamp head heat exchange cavity (13).

5. The electrode clamp with a clamp head that can rotate at any angle along the axial direction according to claim 4, characterized in that: The cooling cavity comprises: a liquid inlet cavity (15) and a liquid discharge cavity (16); the circulating water circuit comprises: a liquid inlet pipe (17) connected to the liquid inlet cavity (15), and a liquid discharge pipe (18) connected to the liquid discharge cavity (16); Two grooves (20) are formed on the main shaft (5) of the electrode clamp, which correspond to the liquid inlet cavity (15) and the liquid discharge cavity (16) respectively; and a channel for a cooling liquid conduit (21) to pass through is also provided on the side wall of each groove (20); the cooling liquid conduit (21) is connected to the heat exchange cavity (13) of the clamp head; A through hole (19) for the coolant conduit (21) to pass through is also provided on the connecting end surface (11) of the coupling block (9).

6. The electrode clamp with a clamp head that can rotate at any angle along the axial direction according to claim 5, characterized in that: A positioning groove (28) adapted to the coolant conduit (21) is provided on the inner cavity wall of the coupling block (9) close to the connecting end surface (11).

7. The electrode clamp with a clamp head that can rotate at any angle along the axial direction according to claim 1, characterized in that: The positive electrode of the power supply (22) is conductively connected to the first electrode sheet (6), and the negative electrode of the power supply (22) is conductively connected to the second electrode sheet (7).

8. The electrode clamp with a clamp head that can rotate at any angle along the axial direction according to claim 5, characterized in that: There are two sealing supports (14), which are respectively arranged on both sides of the annular boss (23) of the electrode clamp main shaft (5) to form the liquid inlet cavity (15) and the liquid discharge cavity (16). Dynamic sealing rings (24) are provided on the connection surface between the sealing bracket (14) and the electrode clamp main shaft (5), respectively located at both ends of the length direction of the liquid inlet cavity (15) and the liquid discharge cavity (16).

9. The electrode clamp with a clamp head that can rotate at any angle along the axial direction according to claim 5, characterized in that: A pipeline support (25) is provided on the sealing bracket (14), and the shape of the pipeline support (25) is respectively adapted to the liquid inlet pipe (17) and the liquid discharge pipe (18), and is suitable for fixing the circulating water circuit and making it turn and extend into the cooling chamber; The sealing bracket (14) is fixedly connected to the outer shell (26) of the electrode clamp.

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