A press machine

Abstract

The present application relates to a pressing machine, comprising a fixed seat, a rotating seat and movable parts, a plurality of movable parts are arranged in a spiral along the circumference and the inner side of the adjacent two movable parts slide against each other, the inner side of all movable parts cooperates to form a compression inner hole, the rotating seat is provided with a reciprocating rotating driving mechanism corresponding to the movable parts and used for driving the movable parts to make spiral track, the rotating seat is driven to drive the driving mechanism to drive the corresponding movable parts to rotate towards the compression inner hole; a plurality of movable parts are driven by the rotating seat to make reciprocating movement towards the compression inner hole, the size of the inner cavity of the compression inner hole is changed, the medical stent is compressed when rotating towards the compression inner hole, and the medical stent is decompressed when rotating away from the compression inner hole, the structure is more simple and compact, a plurality of movable parts do not need to be arranged in the axial direction of the compression inner hole, only one set of movable parts is needed, the number of movable parts is reduced, and the stress of the medical stent is more uniform.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a pressing machine. BACKGROUND

[0002] Medical stents, such as vascular stents, artificial heart valve stents, etc., are widely used in clinical medicine, which enter the inside of the body lumen through a catheter and support the diseased position of the body lumen to achieve treatment. The medical stent is usually cut from a nickel-iron alloy material with shape memory function or a stainless steel material, which has an expanded state when released and a compressed state when transported.

[0003] Before use, the medical stent of large size needs to be compressed and loaded into a corresponding catheter delivery system (different models and sizes of catheter delivery systems can be selected according to the size of the medical stent), which usually enters the implantation position in the body along the body lumen. Taking an aortic valve stent as an example, the compressed aortic valve stent is loaded into the loading section of the catheter delivery system, and then guided by a guide wire, the catheter delivery system enters the aortic valve position through the human femoral artery, descending aorta, aortic arch, to achieve replacement of the aortic valve.

[0004] The existing medical stent pressing machine, such as the medical stent compression device disclosed in Chinese patent document CN109106484A, includes fixed support pieces and movable support pieces arranged at intervals, and blade sets provided between adjacent fixed support pieces and movable support pieces. Each blade set includes a plurality of arc-shaped blades stacked in sequence in the circumferential direction and staggered by a predetermined radian, and each blade includes two opposite ends, one end of which is rotatably connected with one of the fixed support piece or the sliding support piece, and the other end is slidably connected with the other one of the two support pieces. The size of the compression inner hole is changed by rotating the blade connected with the movable support piece to change the size of the compressed medical stent; the compression device of this structure is provided with two groups of blades on both sides of each support piece in mirror image symmetry, and the movement directions of the two groups of blades are opposite, and the two groups of blades on both sides of the support piece are used to exert a spiral extrusion force on both sides of different parts of the medical stent; when the blade set is used to press and hold the medical stent in a spiral manner, two groups of blade sets with opposite rotation directions must be provided on both sides of the support piece to extrude and apply force to different parts of the medical stent from two opposite directions, and one side of the same part of the medical stent is subjected to force while the other side is not, resulting in uneven force and easy damage to the medical stent. SUMMARY

[0005] Therefore, the technical problem to be solved by the present application is to overcome the technical problems in the prior art.

[0006] The application discloses a pressing machine, which comprises a fixed seat and a rotating seat arranged rotatably relative to the fixed seat.

[0007] At least four movable members are arranged in a spiral along the circumference, and the inner ends of adjacent two movable members are relatively slidably abutted; the inner ends of all the movable members are cooperatively surrounded to form a compression inner hole, and the outer ends of the movable members extend radially outward along the circumference; any movable member is arranged on the fixed seat in a reciprocating sliding manner along the extending direction of the movable member.

[0008] The rotating seat is provided with at least four corresponding driving mechanisms for driving the movable members to reciprocating rotate along the spiral track extending from the direction close to the compression inner hole to the direction far away from the compression inner hole.

[0009] The rotating seat is driven to rotate in the forward direction or the reverse direction, so as to drive the driving mechanisms to drive the corresponding movable members to rotate in the direction close to or far away from the compression inner hole; in the forward rotating state, the inner ends of the adjacent two movable members are relatively slidably close to each other to reduce the inner cavity of the compression inner hole; in the reverse rotating state, the inner ends of the adjacent two movable members are relatively slidably far away from each other to increase the inner cavity of the compression inner hole.

[0010] Preferably, the inner end of any movable member is in the form of a hook portion.

[0011] In the forward rotating state, the hook portions of the adjacent two movable members are relatively slidably close to each other and overlap; in the reverse rotating state, the hook portions of the adjacent two movable members are relatively slidably far away from each other.

[0012] Preferably, any movable member comprises a body, the hook portion and a handle portion connecting the body and the hook portion; the handle portion and the hook portion are located between the front side walls in the front direction of the rotating direction to form a recessed accommodation slot in the circumferential direction.

[0013] In the forward rotating state, the handle portion of the movable member located in the front direction of the rotating direction is embedded in the accommodation slot of the movable member located in the rear direction of the rotating direction; and in the reverse rotating state, the handle portion of the movable member located in the rear direction of the rotating direction is out of the accommodation slot of the movable member located in the front direction of the rotating direction.

[0014] Preferably, the end surface of the hook portion of any movable member facing the compression inner hole and the outer wall surface of the handle portion adjacent to the end surface and facing away from the accommodation slot form an external structure suitable for being embedded in the accommodation slot of the adjacent movable member.

[0015] Preferably, the compression inner hole is in the form of a regular polygonal hole corresponding to the number of the movable members.

[0016] Preferably, the pressing machine, the longitudinal section shape of the clearance slot is trapezoidal, and the parallel short side and long side of the trapezoidal shape are respectively the slot bottom and the slot opening opposite to the slot bottom of the clearance slot.

[0017] Preferably, the pressing machine, any of the poking mechanisms comprises a spiral slide provided on the rotating seat and a poking member provided on the movable member, and the poking member is slidably embedded in the spiral slide to make the reciprocating rotation.

[0018] The rotating seat is provided with a first clearance hole in communication with the compression inner hole, and the inner side ends of all the spiral slides are sequentially and spacedly distributed along the forward rotation direction on the outer periphery of the first clearance hole. Among the adjacent two spiral slides, the spiral slide with the inner side end located in front of the forward rotation direction is closer to one side of the first clearance hole than the spiral slide with the inner side end located behind the forward rotation direction.

[0019] Preferably, the pressing machine, the movable members are at least five, the spiral slides are at least four, and the poking members on at least two movable members are slidably embedded in the same spiral slide.

[0020] Preferably, the pressing machine, the fixed seat is provided with a guide assembly corresponding to the movable members and slidably arranged for the movable members.

[0021] Preferably, the pressing machine, the fixed seat and the rotating seat are stacked, and the fixed seat is provided with a second clearance hole in communication with the compression inner hole.

[0022] The guide assembly comprises a guide through slot provided on the fixed seat, and the end of the movable member facing the rotating seat is provided with the poking member, and the poking member is embedded in the corresponding spiral slide through the guide through slot.

[0023] Preferably, the pressing machine, the guide assembly further comprises a guide protrusion or a guide groove provided on the fixed seat and parallel to the guide through slot, and the end surface of the movable member provided with the poking member is further provided with a guide groove matched with the guide protrusion or a guide protrusion matched with the guide groove.

[0024] Preferably, the pressing machine, the fixed seat is two, and the rotating seat is two.

[0025] The two fixed seats are buckled and symmetrically arranged to form a mounting cavity, the two rotating seats are respectively and symmetrically arranged on the outer side of the two fixed seats, the spiral slide is provided on the inner wall surface of the rotating seat facing the fixed seat, and all the movable members are provided in the mounting cavity.

[0026] Preferably, the pressing machine further comprises a driving mechanism for driving the rotation of the rotating seat.

[0027] Preferably, the rotating seat is in the shape of a disc, and the driving mechanism comprises a gear engaging with the circumferential outer wall of the rotating seat and a driver for driving the rotation of the gear; or

[0028] The driving mechanism is a rotating handle protruding on the circumferential outer surface of the rotating seat.

[0029] Preferably, the pressing machine further comprises

[0030] An unlocking device is arranged on the rotating handle, and the unlocking device is capable of switching between a locked state in which the rotating seat is locked on the fixed seat by applying an abutting force to the limiting portion and an unlocked state in which the rotating seat is capable of rotating relative to the fixed seat by removing the abutting force.

[0031] Preferably, the unlocking device comprises

[0032] A first telescopic member is arranged in the inner cavity of the rotating handle, and the inner end of the first telescopic member is capable of acting on the limiting portion, and the outer end of the first telescopic member extends out of the rotating handle;

[0033] A first biasing member is arranged in the rotating handle and is sleeved on the first telescopic member, and the first biasing member applies a first biasing force to the first telescopic member towards the limiting portion;

[0034] A control switch is telescopically arranged on the outer end of the rotating handle; when the control switch is extended, the inner end of the first telescopic member is in the unlocked state, and when the control switch is retracted, the inner end of the first telescopic member is in the locked state under the first biasing force of the first biasing member.

[0035] Preferably, the control switch comprises

[0036] A second telescopic member is arranged on the outer end of the first telescopic member;

[0037] A second biasing member is arranged in the outer end of the first telescopic member, one end of the second biasing member is connected to the bottom of the second telescopic member, and the other end of the second biasing member abuts against the inner bottom of the outer end of the first telescopic member, the second biasing member applies a second biasing force to the second telescopic member towards the inner bottom of the outer end of the first telescopic member, and the directions of the second biasing force and the first biasing force are perpendicular.

[0038] The connecting piece is connected with the second telescopic piece at one end and extends towards the inner side end of the limiting part in a bent part; when the telescopic piece is extended, the bent part of the connecting piece extends out of the gap on one side of the first telescopic piece and abuts against the inner wall of the first telescopic piece, so that the unlocking device is in the unlocked state; when the telescopic piece is retracted, the connecting piece retracts into the gap under the second biasing force of the second biasing piece and abuts against the inner cavity wall of the rotating handle, so that the unlocking device is in the locked state.

[0039] Preferably, the pressing machine further comprises a support base; the fixed seat is fixed on the support base, and the rotating seat is rotatably installed on the support base; and

[0040] A limiting support is arranged on the support base and located on the rotating path of the rotating handle, and the rotating handle is adapted to abut against the limiting support.

[0041] The technical scheme of the present application has the following advantages:

[0042] 1. The pressing machine comprises a fixed seat, a rotating seat and movable pieces, a plurality of movable pieces are arranged in a spiral along the circumference and the inner side ends of adjacent two movable pieces slide against each other, the inner side ends of all movable pieces cooperate to form a compression inner hole, the rotating seat is provided with a driving mechanism corresponding to the movable pieces and used for driving the movable pieces to rotate along a spiral track, the rotating seat is driven to drive the driving mechanism to drive the corresponding movable pieces to rotate towards the compression inner hole; the plurality of movable pieces are driven to move towards or away from the compression inner hole under the driving of the rotating seat, thereby changing the size of the inner cavity of the compression inner hole; the movable pieces are arranged in a spiral, so that the movable pieces rotate along the spiral track during rotation, and the medical stent is compressed when the movable pieces rotate towards the compression inner hole, and the medical stent is decompressed when the movable pieces rotate away from the compression inner hole; the structure is more simple and compact, a plurality of groups of movable pieces are not required in the axial direction of the compression inner hole, only one group of movable pieces is required, the number of movable pieces is reduced, and the stress on the medical stent is more uniform.

[0043] 2. The pressing machine comprises a fixed seat, a rotating seat and movable pieces, the inner side ends of the movable pieces are in the form of hooks; in a forward rotation state, the hooks of adjacent two movable pieces slide against each other and overlap; in a reverse rotation state, the hooks of adjacent two movable pieces slide away from each other; the inner side ends of the movable pieces slide against each other in the form of hooks, the hooks are tangent to the compression inner hole, and a plurality of hooks are connected to form a regular polygon structure closer to a circle, so that the stress on the compressed medical stent is more uniform, and the shape of the compressed medical stent is closer to a circle.

[0044] 3. The presser provided by the present application, the moving part comprises a body, a hook portion and a shank portion connecting the body and the hook portion; the shank portion and the hook portion are located between the front side walls in front of the forward rotation direction to form a circumferentially inwardly recessed accommodation slot; in the forward rotation state, the shank portion of the moving part located in front of the rotation direction is embedded into the accommodation slot of the moving part located in the rear of the rotation direction; and in the reverse rotation state, the shank portion of the moving part located in the rear of the rotation direction is withdrawn out of the accommodation slot of the moving part located in the front of the rotation direction. The hook portion and the accommodation slot are cooperatively arranged, the accommodation slot provides a clearance space for the hook portion of the adjacent moving part, so that the multiple moving parts can be more closely fitted when rotating towards the direction of approaching the compressed inner hole, and meanwhile, the hook portions of the moving parts still relatively slide and abut when rotating away from the direction of approaching the compressed inner hole, so that the multiple moving parts are not completely separated.

[0045] 4. The presser provided by the present application, the actuating mechanism comprises a spiral slide arranged on the rotating seat and an actuating part arranged on the moving part, the actuating part is slidably embedded into the spiral slide to reciprocatingly rotate; the rotating seat is provided with a first accommodation hole in communication with the compressed inner hole, the inner side ends of all the spiral slides are sequentially and spacedly distributed along the forward rotation direction at the outer periphery of the first accommodation hole, in the adjacent two spiral slides, the spiral slide with the inner side end located in front of the forward rotation direction is closer to the side of the first accommodation hole than the spiral slide with the inner side end located in the rear of the forward rotation direction; the arrangement of the spiral slide enables the multiple moving parts to reciprocatingly rotate along the spiral track, so that the moving parts slide in the radial direction to move towards or away from the direction of approaching the compressed inner hole to change the size of the compressed inner hole, and meanwhile, the moving parts do not separate from the rotating seat and are always connected with the rotating seat to be driven to rotate by the rotating seat.

[0046] 5. The presser provided by the present application, the fixed seat is provided with a guide assembly corresponding to the moving part and slidably arranged with the moving part. The arrangement of the guide assembly enables the rotation of the moving part to be more stable and always move on the track where the guide assembly is located, and the track deviation does not occur.

[0047] 6. The application provides a kind of compression machine, drive mechanism is rotary handle, fixed seat is equipped with limiting portion, rotary seat is equipped with unlocking device, rotary seat outside is equipped with limiting support, when unlocking device is in locking state, rotary seat drives movable element to rotate to when unlocking device and limiting portion abutment connection movable element cannot continue to drive forward rotation and can drive movable element direction rotation;When in unlocking state, limiting portion cannot form the blocking constraint of movable element, rotary handle can be forward rotated to contact with limiting support;The setting of unlocking device makes the compression machine have secondary compression size, the compression size of compression machine can be set and adjusted according to actual needs;First, use locking device to lock when limiting portion is compressed to medical support once, then use unlocking device to unlock when limiting support is compressed twice, compression is more uniform, the compression rate of medical support after compression is higher, more firm, the size of compression inner hole of compression machine can also be adjusted, more widely applicable.

[0048] 7. The application provides a kind of compression machine, first telescopic piece includes stem, control switch and first biasing member, stem is located in the inner cavity in operating part and can be telescopic in the radial direction of fixed seat in inner cavity, inner cavity has first stop and second stop;Control switch includes second telescopic piece, second biasing member and connecting piece;In locking state, connecting piece is separated from the stop of first stop and follows stem and moves in radial direction towards limiting portion and is connected with limiting portion abutment, the size of compression inner hole is fixed at limiting portion position;In unlocking state, connecting piece is separated from the stop of first stop and follows stem and moves in radial direction away from limiting portion and is connected with limiting portion, rotary handle can continue to drive movable element to continue to rotate in the direction of approaching compression inner hole to continue to reduce the size of compression inner hole, until rotary handle is limited at limiting support position, the size of compression inner hole reaches minimum;Operator can select unlocking and locking of unlocking device according to the actual compression size of compressed medical support, more suitable, unlocking device can also be switched to carry out secondary compression, so that the compression of compressed medical support is more uniform, and the compression rate is higher;Simple structure, convenient operation. BRIEF DESCRIPTION OF DRAWINGS

[0049] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0050] Figure 1 It is the main view structural diagram of the compression machine of the present application.

[0051] Figure 2Exploded view of the pressing machine of the present application;

[0052] Figure 3 Exploded view of the pressing machine of the present application (only the limiting support is indicated);

[0053] Figure 4 Structure diagram of the pressing machine of the present application including only one side of the fixed seat and the rotating seat;

[0054] Figure 5 Structure diagram of the movable member and the fixed seat of the pressing machine of the present application;

[0055] Figure 6 Structure diagram of the unlocking device of the pressing machine of the present application when rotating to the limiting part in the locked state;

[0056] Figure 7 Structure diagram of the unlocking device of the pressing machine of the present application when rotating to the limiting part in the unlocked state;

[0057] Figure 8 Structure diagram of the movable member of the pressing machine of the present application in the decompression state;

[0058] Figure 9 Structure diagram of the movable member of the pressing machine of the present application in the pressing state;

[0059] Figure 10 Structure diagram of the movable member of the pressing machine of the present application;

[0060] Figure 11 Structure diagram of the rotating seat of the pressing machine of the present application;

[0061] Figure 12 Structure diagram of one of the spiral slides of the rotating seat of the pressing machine of the present application;

[0062] Figure 13 Structure diagram of the pressing machine of the present application in Example 2;

[0063] Figure 14 Structure diagram of the pressing machine of the present application in Example 3.

[0064] Explanation of reference signs:

[0065] 1 - base;

[0066] 2 - support frame;

[0067] 3 - fixed seat; 31 - guide assembly; 311 - guide through slot; 312 - guide protrusion; 32 - limiting part; 33 - second clearance hole;

[0068] 4 - movable member; 41 - body; 42 - actuating member; 43 - guide groove;

[0069] 5-rotating seat; 51-spiral slide; 51a-starting end; 51b-end; 52-rotating handle; 520-internal cavity; 521-first stop; 522-second stop; 53-first accommodation hole;

[0070] 6-unlocking device; 61-first telescopic part; 611-protruding structure; 62-control switch; 621-second telescopic part; 622-second biasing part; 623-connection part; 63-first biasing part; 631-first biasing part fixing part; 64-aperture;

[0071] 7-limiting support;

[0072] 8-compression inner hole;

[0073] 9-receiving cavity;

[0074] 10-limiting frame;

[0075] 11-gear;

[0076] 12-driver;

[0077] 13-alarm device;

[0078] 14-pressure real-time feedback module;

[0079] 15-refrigeration circulation pipeline. DETAILED DESCRIPTION

[0080] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0081] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0082] In the description of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0083] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict between them.

[0084] Embodiment 1

[0085] The compression machine of the present embodiment, as shown in Figures 1 to 12 , is used for compressing medical stents, compressing the volume of medical stents to a predetermined range, so that the medical stents can be transported to the cavity of the human or animal body with a smaller volume, and achieve the effect of minimally invasive treatment. Of course, this compression machine is not limited to being able to compress the vascular stents, artificial heart valves, occlusion implants and the like applied in the cardiovascular field, but can also be applied to medical stents supporting other parts such as the esophagus and intestine, as long as the medical stents have radial size change, the compression machine provided by the present application can be used for compression.

[0086] The compression machine comprises two circular fixed seats 3, twelve movable pieces 4 located between the two fixed seats 3, two rotating seats 5 located outside the two fixed seats 3, a support seat 2 located at the bottom end of the fixed seat 3, a driving mechanism, an unlocking device and a limiting support 7; the twelve movable pieces 4 are arranged in a spiral along the circumference of the circle, and the inner side ends of the adjacent two movable pieces 4 can slide and abut relatively, and the inner side ends of all the movable pieces 4 cooperate to form a compression inner hole 8, and the outer side ends extend outward along the circumference of the circle; any movable piece 4 is reciprocally slidably arranged on the fixed seat 3 along its extension direction; the rotating seat 5 is provided with a driving mechanism corresponding to the movable piece 4 one by one and used for driving the movable piece 4 to reciprocally rotate along a spiral track extending from the direction close to the compression inner hole 8 to the direction away from the compression inner hole 8; the driving mechanism is a rotating handle 52 protruding on the circumferential outer surface of the rotating seat 5, and the unlocking device 6 is arranged on the rotating handle 52; the unlocking device 6 can be switched between a locking state of applying abutting force to the limiting part 32 to lock the rotating seat 5 on the fixed seat 3 and an unlocking state of removing the abutting force to make the rotating seat 5 rotate relative to the fixed seat 3; the rotating seat 5 is driven by the external force of the driving mechanism to rotate in the forward direction (as shown in Figure 1 from left to right, that is, in the clockwise direction) or in the reverse direction (as shown in Figure 1The rotation direction shown from right to left, namely counterclockwise direction), to drive the dial mechanism dial each corresponding movable piece 4 corresponding to do close to or away from the compression hole 8 direction rotation, in the forward rotation state, the inner side of the adjacent two movable piece 4 end to each other close to the sliding and reduce the compression hole 8 inner cavity; in reverse rotation state, the inner side of the adjacent two movable piece 4 end to each other away from the sliding and increase the compression hole 8 inner cavity; fixed seat 3 is fixed on the support seat, rotating seat 5 is rotatably mounted on the support seat; limit support 7 is provided on one side of the support seat (such as Figure 1 The right side) and located in the rotating path of rotating handle 52 hand, rotating handle 52 is suitable for in the forward rotation to the compression hole 8 size is the smallest time abuts on the limit support 7.

[0087] As Figure 10 The inner side of movable piece 4 is shown as hook 44, including first end face 441 and second end face 442, first end face 441 and second end face 442 are arranged at an angle to form hook shaped hook 44; in the forward rotation state, the first end face 441 of the hook 44 of the adjacent two movable piece 4 is slid to each other close to and overlap; in reverse rotation state, the first end face 441 of the hook 44 of the adjacent two movable piece 4 is slid to each other away.

[0088] As Figures 8 to 10 Movable piece 4 is shown as a square block, including body 41, hook 44 and handle 45 connecting body 41 and hook 44; handle 45 and hook 44 are located between the front side wall (namely the left side of the upper side as Figure 10 The hook 44 of any movable piece 4 is shown as a square block, including body 41, hook 44 and handle 45 connecting body 41 and hook 44; handle 45 and hook 44 are located between the front side wall (namely the left side of the upper side as Figure 10 The second end face 442 of hook 44 is connected with one side of handle 45, and the other side of handle 45 is connected with body 41; the longitudinal cross section of the accommodation slot 46 is trapezoidal, preferably nonisosceles trapezoidal, nonright angle trapezoidal, the parallel short side and long side of the trapezoidal are respectively the slot bottom 462 and the slot opening (not shown) opposite to the slot bottom 462 of the accommodation slot 46; such as the notch slot, the first side wall 461 of the notch slot is connected with the hook 44, the slot bottom 462 of the notch slot is parallel to the wall surface of the handle 45 away from the accommodation slot 46, and the second side wall 463 of the notch slot is connected with the body 41; specifically, the angle between the first end face 441 and the second end face 442 of the hook 44 is equal to the angle between the first side wall 461 and the slot bottom 462, and the angle between the slot bottom 462 and the second side wall 463 is equal to the angle between the second end face 442 and the outer wall surface of the handle 45 away from the accommodation slot 46, so that in the forward rotation state (such as Figure 8As shown), of the two adjacent movable members 4, the handle 45 of the movable member 4 located in the front of the rotation direction is embedded in the clearance groove 46 of the movable member 4 located in the rear of the rotation direction; and in the reverse rotation state (as shown Figure 9 As shown), the handle 45 of the movable member 4 located at the rear of the rotation direction exits the clearance groove 46 of the movable member 4 located at the front of the rotation direction.

[0089] The first end surface 441 of the hook portion 44 of each movable member 4 is tangent to the compression inner hole 8, meaning that the compression inner hole 8 is a regular polygon corresponding to the number of movable members 4. Therefore, it can be seen that the greater the number of movable members 4, the closer the shape of the compression inner hole 8 is to a circular hole, and the closer the compressed medical stent is to a circle. The number of movable members 4 can be four, five, six, seven, eight, nine, ten, eleven, twelve, etc. However, the number of movable members 4 is not necessarily better. After optimizing the design, the inventors have determined that the preferred number of movable members 4 is twelve, as shown in the accompanying drawings of the present invention.

[0090] like Figure 2 and Figure 4 As shown, the rotating seat 5 is disc-shaped, and the toggle mechanism includes a spiral slide 51 provided on the rotating seat 5 facing the inner end surface of the fixed seat 3, and a toggle member 42 provided on the movable member 4. The toggle member 42 can be slidably embedded in the spiral slide 51 to perform reciprocating rotation; Figure 4 As shown, the toggle member 42 is a bearing rotatably disposed on the body 41 of the movable member 4; Figure 11 and Figure 12 As shown, the center of the rotating seat 5 is provided with a first clearance hole 53 connected to the compression inner hole 8. The inner ends of all the spiral slideways 51 are sequentially spaced along the positive rotation direction and are distributed around the first clearance hole 53. In the two adjacent spiral slideways 51, the inner ends are located in front of the positive rotation direction (i.e., as shown in FIG. Figure 11 The spiral slideway 51 is located behind the inner end of the spiral slideway 51 in the positive rotation direction (ie, the inner end of the ... Figure 11 The spiral slideway 51 (the relative position in the figure is the right side) is closer to the first clearance hole 53.

[0091] like Figure 11As shown, four spiral slides 51 are provided, and the four spiral slides 51 are of the same structure, the starting end 51a and the terminal end 51b of each spiral slide 51 are different, the starting end 51a is located at the rear of the positive rotation direction and close to the outer wall of the first accommodation hole 53, and the terminal end 51b is located at the front of the positive rotation direction and extends spirally and gradually away from the outer wall of the first accommodation hole 53, and the starting ends 51a of the four spiral slides 51 are uniformly and spacedly arranged along the outer wall of the first accommodation hole 53; the twelve movable pieces 4 are divided into three groups, each group has three movable pieces 4, the actuating pieces 42 of each group of three movable pieces 4 are spacedly embedded in one spiral slide 51 and can slide in the spiral slide 51, since the spiral slide 51 is of an eccentric structure, the movement track of the movable piece 4 in the spiral slide 51 is also eccentric, therefore, the spacing d between the actuating piece 42 of each group of three movable pieces 4 and the accommodation slot 46 of the movable piece 4 is not equal, the spacing d between the actuating piece 42 of the movable piece 4 close to the starting end 51a and the accommodation slot 46 of the movable piece 4 in each spiral slide 51 is the smallest, and the spacing d between the actuating piece 42 of the movable piece 4 close to the terminal end 51b and the accommodation slot 46 of the movable piece 4 is the largest. Optionally, the number of the movable pieces 4 and the number of the spiral slides 51 can also not be one-to-one corresponding, for example, the number of the movable pieces 4 is five, and the number of the spiral slides 51 is four, wherein the actuating pieces 42 on two movable pieces 4 are slidably embedded in the same spiral slide 51, and other movable pieces 4 and other spiral slides 51 can also be one-to-one corresponding. Similarly, the number of the spiral slides 51 can also not be four, but other numbers, such as one, two, three, five, six, etc. The curvature of the spiral slide 51 is not limited here, and can be set according to the number of the spiral slides 51 and the size of the rotating seat 5.

[0092] As Figure 2 and Figure 4As shown, the fixed seat 3 is disc-shaped, with a second clearance hole 33 provided in the center thereof, the second clearance hole 33 being connected to the compression inner hole 8, and a guide assembly 31 corresponding to the movable part 4 and slidably arranged on the fixed seat 3; the fixed seat 3 and the rotating seat 5 are arranged in a stacked manner, and the first clearance hole 53 and the second clearance hole 33 are also connected and are both circular holes; specifically, there are two fixed seats 3 and two rotating seats 5; the two fixed seats 3 are buckled and symmetrically arranged to form an installation cavity; the two rotating seats 5 are symmetrically arranged on the outside of the two fixed seats 3, and the spiral slide 51 is provided on the inner wall surface of the rotating seat 5 facing the fixed seat 3; all movable parts 4 The guide assembly 31 includes a guide groove 311 provided on the fixed seat 3 and a guide ridge 312 parallel to the guide groove 311. A toggle member 42 is provided on one end of the movable member 4 facing the rotating seat 5. The end surface of the movable member 4 provided with the toggle member 42 is also provided with a guide groove 43 that is plugged into the guide ridge 312. After the toggle member 42 passes through the guide groove 311 and the guide groove 43 on the movable member 4 is plugged into the guide ridge 312 on the fixed seat 3, the toggle member 42 is embedded in the corresponding spiral slide 51. The guide groove 311 extends obliquely from the center of the second clearance hole 33 to the outer edge of the fixed seat 3, as shown in FIG. Figure 1 As shown, the guide grooves 311 extend obliquely in the forward rotation direction, and there is a deviation in the oblique extension of the two adjacent guide grooves 311, and this deviation matches the spiral trajectory of the movable part 4. The guide grooves 311 are in the shape of long strips, and the length of the guide ribs 312 is longer than the length of the corresponding guide grooves 311. The setting of the guide grooves 311 is matched with the spiral slide 51. As a deformable embodiment, the guide assembly 31 includes a guide groove 311 provided on the fixed seat 3 and a guide groove parallel to the guide groove 311. The movable part 4 is provided with a guide rib on the end face of the toggle member 42 that plugs into the guide groove. As an alternative embodiment, the guide assembly 31 of the present invention can be only the guide groove 311 provided on the fixed seat 3, without the guide ribs 312. It can also achieve that the movable part 4 slides along the spiral slide 51 under the guidance of the guide groove 311 to complete the change of the aperture size of the inner cavity of the compression inner hole 8.

[0093] like Figure 2 、 Figure 4 、 Figure 6 、 Figure 7 and Figure 11As shown, the unlocking device 6 comprises a first telescopic member 61, a first biasing member 63 and a control switch 62. The first telescopic member 61 is arranged in the inner cavity 520 of the rotating handle 52, and the inner end of the first telescopic member 61 can act on the limiting portion 32, and the outer end of the first telescopic member 61 extends out of the rotating handle 52. The first biasing member 63 is arranged in the rotating handle 52 and is sleeved on the outer side of the first telescopic member 61, and the first biasing member 63 applies a first biasing force to the first telescopic member 61 towards the limiting portion 32. The control switch 62 is arranged on the outer end of the rotating handle 52 in a telescopic manner. When the control switch 62 is extended, the inner end of the first telescopic member 61 is in an unlocked state, and when the control switch 62 is retracted, the inner end of the first telescopic member 61 is in a locked state under the first biasing force of the first biasing member 63. The limiting portion 32 is a recessed notch structure arranged on the outer peripheral wall of the fixed seat 3 (for example, on the right side as shown) Figure 1 . The recessed direction of the notch structure is not along the radial direction, but is recessed from top to bottom, and has a generally L-shaped structure. When the unlocking device 6 is matched, the rotating handle 52 is firmly limited in the limiting portion 32 and cannot drive the movable member 4 to continue to slide along the spiral slide 51 to change the size of the compression inner hole 8. Specifically, the inner cavity 520 is arranged along the length direction of the rotating handle 52, and the first telescopic member 61 is inserted into the inner cavity 520 and can be telescoped in the inner cavity 520 along the radial direction of the rotating seat 5, so that the first telescopic member 61 can be switched between the locked state and the unlocked state. In the locked state, the inner end of the first telescopic member 61 abuts against the limiting portion 32 and is fixed. Due to the blocking effect of the limiting portion 32, the rotating seat 5 cannot continue to rotate in the compression direction (i.e. the positive direction) to reduce the size of the compression inner hole 8, and the rotating seat 5 is fixed at the first limiting point (for example, the midpoint A position) Figure 6 and Figure 7 . In the unlocked state, the inner end of the first telescopic member 61 is separated from the limiting portion 32, and the limiting portion 32 releases the blocking of the rotating seat 5, so that the rotating seat 5 can continue to rotate in the compression direction (i.e. the positive direction) to further reduce the size of the compression inner hole 8, until the rotating seat 5 reaches the second limiting point (for example, the midpoint B position) Figure 6 and Figure 7 .

[0094] As shown Figure 2 , Figure 4 and Figure 11As shown, the inner cavity 520 is provided with a first stop portion 521, and the first telescopic member 61 is in the shape of a rod, including a rod portion arranged in the inner cavity 520 and an operating portion (not shown) for mounting the control switch 62 formed on the outer side end of the rod portion. The operating portion is a square block with a diameter larger than that of the rod portion. The square block is provided with an opening (not marked), and the direction of the opening is perpendicular to the length direction of the rod portion. The inner end portion of the rod portion is provided with a protruding structure 611 matched with the slot structure of the limiting portion 32. The rod portion is formed by pressing and fixing two symmetrical structures. The outer periphery of the middle portion of the rod portion is provided with a first biasing member fixing member 631. The first biasing member 63 is sleeved on the middle portion of the rod portion and fixed on the outer periphery of the rod portion by the first biasing member fixing member 631. The first biasing member fixing member 631 is radially inserted and fixed in the middle portion of the rod portion and protrudes from the outer periphery surface of the rod portion at both ends. Alternatively, the first biasing member fixing member 631 can also be a protruding column structure or the like symmetrically protruding on the outer periphery surface of the rod portion. The first stop portion 521 is arranged in the inner cavity 520 close to the control switch 62 and protrudes radially towards the rod portion. The middle portion of the inner cavity 520 is provided with a second stop portion 522 protruding radially towards the rod portion. The second stop portion 522 has two groups, and the two groups of second stop portions 522 are arranged in parallel and at intervals and form an active area for accommodating the movement of the first biasing member 63. The second stop portion 522 and the first stop portion 521 are arranged in parallel and at intervals, forming axial limiting of the rod portion. An opening 64 is formed on the rod portion close to the control switch 62. The control switch 62 includes a second telescopic member 621, a second biasing member 622, and a connecting member 623. For example, the second telescopic member 621 is a common switch button. The second telescopic member 621 is inserted into the opening of the square block on the outer side end of the rod portion of the first telescopic member 61 and can be telescoped up and down in the opening. The second biasing member 622 is arranged in the opening of the square block on the outer side end of the rod portion of the first telescopic member 61. One end of the second biasing member 622 is connected with the bottom of the second telescopic member 621, and the other end is abutted against the inner bottom end of the first telescopic member 61, i.e., the inner bottom end of the opening, to apply a second biasing force to the second telescopic member 621 towards the inner bottom end of the first telescopic member 61, i.e., the bottom end of the opening. The direction of the second biasing force is perpendicular to that of the first biasing force, i.e., the first biasing force is along the length direction of the rod portion, and the second biasing force is perpendicular to the length direction of the rod portion. One end of the connecting member 623 is connected with the second telescopic member 621, and the other end extends towards the inner side end of the limiting portion 32 and is in the shape of a bent portion. At least the bent portion of the connecting member 623 is elastic. When performing an extension movement, the bent portion of the connecting member 623 extends out of the opening 64 formed on one side of the first telescopic member 61 and is abutted against the inner wall of the first telescopic member 61, so that the unlocking device is in an unlocked state. When performing an extension movement, the connecting member 623 extends into the opening 64 under the second biasing force of the second biasing member 622 and is abutted against the inner wall of the rotating handle 52, so that the unlocking device 6 is in a locked state.

[0095] When switching from the unlocked state to the locked state, the control switch 62 controls the second telescopic member 621 to press down the bent part of the connecting member 623 into the gap 64, the first stop part 521 does not stop the bent part of the connecting member 623, the first biasing member 63 recovers the deformation to exert a biasing force on the first telescopic member 61 to move towards the limiting part 32, the rod part moves to the protruding structure 611 at the inner end of the rod part abutting against the limiting part 32 to complete the switching, the first stop part 521 abuts against the connecting member 623 to exert a downward pressure on the connecting member 623, after the switching, the first biasing member 63 recovers the deformation to be in the normal state; when switching from the locked state to the unlocked state, manually pull the rod part to move away from the first limiting part 32, the bent part of the connecting member 623 is popped out of the gap 64 under the action of its own elasticity, the first biasing member 63 moves towards the second stop part 522, and when abutting against the second stop part 522, the first biasing member 63 is deformed under the extrusion of the first biasing member fixing part 631 and the second stop part 522 to exert a biasing force on the first telescopic member 61 towards the limiting part 32, so that the bent part of the connecting member 623 tightly abuts against the outside of the first stop part 521 (the side close to the control switch 62), the protruding structure 611 at the inner end of the rod part is separated from the first limiting part 32 to release the rotation restriction on the rotating seat 5, and the movable member can continue to rotate along the compression rotation direction (positive direction) to reduce the size of the compression inner hole 8. The first biasing member 63 and the second biasing member 622 are straight pipe springs in the prior art, and of course can be other spring structures in the prior art, which are not particularly limited here. Optionally, the rod part is an integral structure.

[0096] As Figure 8As shown, the size of the compression inner hole 8 enclosed by the movable members 4 is the largest, that is, the compression device is in the decompression state, at this time, the rotating handle 52 is located at the leftmost side, at this time, the pusher 42 of the movable member 4 close to the starting end 51a of the spiral slide 51 abuts against the starting end 51a, and the pushers 42 of the other movable members 4 are located in the spiral slide 51; when the unlocking device 6 is in the locked state, the rotating handle 52 is rotated to the right (that is, forward), under the driving action of the rotating seat 5 and the guiding action of the guide assembly 31, the movable members 4 slide in the respective corresponding spiral slides 51, the inner end faces of the movable members 4 slide relative to each other, the inner end faces of the adjacent two movable members 4 slide towards each other to reduce the inner cavity of the compression inner hole 8, when the inner end of the first telescopic member 61 abuts against the limiting portion 32, the rotating handle 52 cannot continue to rotate to the right (forward rotation) due to the blocking action of the limiting portion 32, but the rotating seat 5 can rotate to the left (reverse rotation), at this time, the minimum size of the inner cavity of the compression inner hole 8 will not change, at this time, the hook portion 44 of one of the adjacent movable members 4 has not completely embedded into the slot bottom 462 of the other movable member 4; when the unlocking device 6 is in the unlocked state, the rotating handle 52 is rotated to the right (forward rotation), the inner end faces of the adjacent two movable members 4 can continue to slide towards each other to further reduce the size of the inner cavity of the compression inner hole 8, until the rotating handle 52 abuts against the limiting support 7, at this time, the hook portion 44 of one of the adjacent two movable members 4 completely embeds into the slot bottom 462 of the other movable member 4, at this time, the pusher 42 of the movable member 4 close to the end 51b of the spiral slide 51 abuts against the end 51b, and the pushers 42 of the other movable members 4 are located in the spiral slide 51.

[0097] As shown in Figure 1 , the limiting support 7 is a vertically upward protruding limiting support fixedly arranged on the base 1 on the side (for example, the right side as shown in Figure 1 ) outside the rotating seat 5, and the position of the limiting support 7 is lower than that of the limiting portion 32. Optionally, the height of the limiting support 7 is adjustable, and the adjustable structure is not limited here, for example, a height-adjustable support can be added, and the like, as long as the structure can realize the height adjustment of the limiting support 7, and the person skilled in the art can select and design according to the needs.

[0098] As shown in Figure 2 , the support seat is used to support the movable members 4, and the plurality of movable members 4 move under the driving action of the rotating seat 5 to change the size of the compression inner hole 8 enclosed thereby, so that the medical stent accommodated in the compression inner hole 8 can be compressed and reduced in volume under the extrusion action of the inner end faces of the movable members 4, thereby completing the compression of the medical stent.

[0099] As shown in Figure 1 and Figure 2As shown, the support seat includes a base 1 and a support frame 2 fixed to the upper end of the base 1. The support frame 2 and the base 1 together form a storage space 9 for accommodating the rotating seat 5, the fixed seat 3 and the movable part. The fixed seat 3 and the movable part 4 are arranged in the storage space 9.

[0100] like Figure 2 As shown, the support frame 2 has an arc-shaped opening to match the annular shapes of the fixed seat 3 and the rotating seat 5.

[0101] like Figure 3 As shown, a vertically fixed limit frame 10 is provided in the middle of the arc-shaped opening of the support frame 2 , and a gap exists between the top end of the limit frame 10 and the bottom end of the rotating seat 5 to facilitate the rotation of the rotating seat 5 .

[0102] like Figure 1 As shown, the base 1 is a rectangular flat plate that can more stably support the crimping machine. In other alternative embodiments, the base 1 can also be a curved plate or other shapes other than a flat plate. Preferably, the shape of the base 1 matches the shape of the external support surface supporting the crimping machine to improve the crimping machine's support stability.

[0103] As a first alternative embodiment, only the limiting bracket 7 may be provided, and the limiting portion 32 may not be provided on the fixing seat 3 . Correspondingly, the unlocking device 6 may not be provided in the rotating handle 52 .

[0104] As a second alternative embodiment, the limiting bracket 7 may not be provided, and the limiting portion 32 is only provided at the position where the limiting bracket 7 was originally provided on the right side of the fixing seat 3 .

[0105] As a third alternative embodiment, in order to increase the functionality of the crimping machine, a real-time pressure feedback module (such as a pressure sensor), a torque setting module and an alarm device 13 (such as a buzzer) can be added to the rotating handle 52, and these modules are electrically connected to the controller. As for the connection method and working principle, they are not described or limited here, and those skilled in the art can design according to actual needs.

[0106] Example 2

[0107] like Figures 1 to 13 As shown, the difference from Example 1 is that this embodiment does not include a rotating handle 52 and an unlocking device 6. The driving method of this embodiment is an electric drive method, that is, the driving mechanism includes a gear 11 meshing with the circumferential outer wall of the rotating base 5 and a driver 12 that drives the gear 11 to rotate. The driver 12 drives the gear 11 to rotate, and the rotation of the gear 11 drives the rotating base 5 to rotate.

[0108] As an alternative embodiment, the driving mechanism of the present embodiment can also be a chain transmission belt structure, a belt pulley transmission belt structure, and the like, which are well known to those skilled in the art in the prior art.

[0109] In order to improve the functionality of the pressing machine, a pressure real-time feedback module 14 (such as a pressure sensor), a torque setting module, a compression inner hole size setting module, an alarm device 13 (such as a buzzer), and the like can be added to the pressing machine, and these modules are electrically connected to a controller (not shown). The connection method and working principle are not described and limited here, and those skilled in the art can design according to actual needs. The pressure real-time feedback module can display the pressing strength data and overload protection in real time.

[0110] Embodiment 3

[0111] As shown in Figures 1 to 14 The difference between the present embodiment and Embodiment 2 is that the pressing machine of the present embodiment is also provided with a low-temperature circulation control module (not shown) and refrigeration circulation pipelines 15 are arranged on both sides of the pressing machine. For example, a refrigerating device (not shown) is added to the rotating seat 5 or the support seat of the pressing machine, and the refrigerating device is connected with the refrigeration circulation pipelines 15. Through the low-temperature circulation control module and the refrigeration circulation pipelines 15, the refrigeration circulation pipelines 15 are arranged at the outer ends of both sides of the rotating seat 5. The low-temperature pressing can be realized by using dry ice or liquid nitrogen as a coolant through physical refrigeration, so as to meet the pressing requirements of some products with special temperature requirements without the need of external cooling devices for cooling. The specific structure and working principle of the refrigerating device and the refrigeration circulation pipelines 15 are not described and limited here, and those skilled in the art can select and set according to the requirements, as long as the low-temperature adjustment of the pressing machine can be met.

[0112] Embodiment 4

[0113] The difference between the present embodiment and Embodiments 1, 2 and 3 is that the present embodiment is provided with both the rotating handle 52 and the unlocking device 6, and also provided with the driver 12 and the gear 11. The gear 11 is detachably installed on the side of the base 1 of the support seat opposite to the limiting support 7, so that the pressing machine can be pressed in a manual driving mode by using the rotating handle 52, or pressed in an electric pressing mode by using the driver 12. The two modes can be arbitrarily switched for use, and the applicability is stronger.

[0114] Obviously, the above embodiments are only examples for clearly illustrating, but not limiting the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A crimping machine, characterized in that: include: Fixed seat (3); a rotating seat (5) rotatably arranged relative to the fixed seat (3); and At least four movable parts (4) are arranged in a spiral along the circumference of a circle, and the inner ends of two adjacent movable parts (4) can slide relative to each other; the inner ends of all the movable parts (4) cooperate to form a compression inner hole (8), and the outer ends thereof extend radially outward along the circumference; any of the movable parts (4) is arranged on the fixed seat (3) so as to be reciprocatingly slidable along its extension direction; The rotating seat (5) is provided with a toggle mechanism corresponding to at least four of the movable members (4) and used to toggle the movable members (4) to reciprocate along a spiral trajectory extending from a direction close to the compression inner hole (8) toward a direction away from the compression inner hole (8); The rotating seat (5) is driven by an external force to rotate in a forward or reverse direction, thereby driving the toggle mechanism to toggle the corresponding movable parts (4) to rotate in a direction toward or away from the compression inner hole (8). In the forward rotation state, the inner ends of the two adjacent movable parts (4) slide toward each other to reduce the inner cavity of the compression inner hole (8); in the reverse rotation state, the inner ends of the two adjacent movable parts (4) slide away from each other to increase the inner cavity of the compression inner hole (8); A limiting portion (32) is provided on the outer peripheral wall of the fixed seat (3); the crimping machine further comprises an unlocking device (6); the unlocking device (6) is capable of switching between a locked state in which the rotating seat (5) is locked to the fixed seat (3) by applying an abutting force to the limiting portion (32) and an unlocked state in which the rotating seat (5) is rotated relative to the fixed seat (3) by releasing the abutting force; The crimping machine further comprises a support seat; the fixed seat (3) is fixed on the support seat, and the rotating seat (5) is rotatably mounted on the support seat; The crimping machine further comprises a driving mechanism for driving the rotating seat (5) to rotate, wherein the driving mechanism is a rotating handle (52) protruding from the circumferential outer surface of the rotating seat (5); The crimping machine further comprises a limiting bracket (7), wherein the limiting bracket (7) is provided on the support seat and is located on the rotation path of the rotating handle (52), and the rotating handle (52) is suitable for abutting against the limiting bracket (7).

2. The crimping machine according to claim 1, characterized in that The inner end of any one of the movable members (4) is a hook portion (44); In the forward rotation state, the hook portions (44) of the two adjacent movable members (4) slide and abut against each other so as to approach and overlap; in the reverse rotation state, the hook portions (44) of the two adjacent movable members (4) slide and abut against each other so as to move away from each other.

3. The crimping machine according to claim 2, characterized in that Any of the movable parts (4) comprises a body (41), a hook (44), and a handle (45) connecting the body (41) and the hook (44); the handle (45) and the hook (44) are located between the front side walls in front of the forward rotation direction to form a circumferentially inwardly recessed clearance groove (46); In the forward rotation state, of the two adjacent movable members (4), the handle (45) of the movable member (4) located in the front in the rotation direction is embedded in the clearance groove (46) of the movable member (4) located in the rear in the rotation direction; and in the reverse rotation state, the handle (45) of the movable member (4) located in the rear in the rotation direction is withdrawn from the clearance groove (46) of the movable member (4) located in the front in the rotation direction.

4. The crimping machine according to claim 3, characterized in that An outer structure adapted to be embedded in the clearance groove (46) of the adjacent movable part (4) is formed between the end surface of the hook portion (44) facing the compression inner hole (8) and the outer wall surface of the adjacent handle portion (45) facing away from the clearance groove (46).

5. The crimping machine according to claim 3, wherein: The compression inner holes (8) are regular polygonal holes corresponding to the number of the movable parts (4).

6. The crimping machine according to claim 5, characterized in that The longitudinal cross-section of the clearance groove (46) is a trapezoid, and the parallel short sides and long sides of the trapezoid serve as the groove bottom (462) of the clearance groove (46) and the groove opening opposite to the groove bottom (462), respectively.

7. The crimping machine according to any one of claims 1 to 6, characterized in that: Any of the toggle mechanisms comprises a spiral slideway (51) provided on the rotating seat (5), and a toggle member (42) provided on the movable member (4), wherein the toggle member (42) is slidably embedded in the spiral slideway (51) to perform the reciprocating rotation; The rotating seat (5) is provided with a first clearance hole (53) connected to the compression inner hole (8), and the inner ends of all the spiral slideways (51) are sequentially spaced along the positive rotation direction on the periphery of the first clearance hole (53). Among two adjacent spiral slideways (51), the spiral slideway (51) whose inner end is located in front of the positive rotation direction is closer to the first clearance hole (53) than the spiral slideway (51) whose inner end is located behind the positive rotation direction.

8. The crimping machine according to claim 7, wherein: There are at least five movable parts (4), at least four spiral slideways (51), and at least two of the toggle parts (42) on the movable parts (4) are slidably embedded in the same spiral slideway (51).

9. The crimping machine according to claim 7, wherein: The fixed seat (3) is provided with a guide assembly (31) which corresponds one-to-one with the movable member (4) and on which the movable member (4) can be slidably arranged.

10. The crimping machine according to claim 9, wherein: The fixed seat (3) and the rotating seat (5) are arranged in a stacked manner, and the fixed seat (3) is provided with a second clearance hole (33) communicating with the compression inner hole (8); The guide assembly (31) includes a guide slot (311) provided on the fixed seat (3); the movable member (4) is provided with the toggle member (42) on one end facing the rotating seat (5); the toggle member (42) passes through the guide slot (311) and is embedded in the corresponding spiral slideway (51).

11. The crimping machine according to claim 10, wherein: The guide assembly (31) further includes a guide rib (312) or a guide groove provided on the fixing seat (3) and parallel to the guide groove (311); and the end surface of the movable member (4) provided with the toggle member (42) is further provided with a guide groove (43) pluggable with the guide rib (312) or a guide rib pluggable with the guide groove.

12. The crimping machine according to claim 10 or 11, characterized in that: There are two fixed seats (3) and two rotating seats (5); The two fixed seats (3) are buckled and symmetrically arranged to form a mounting cavity; the two rotating seats (5) are symmetrically arranged on the outsides of the two fixed seats (3), respectively, and the spiral slideway (51) is arranged on the inner wall surface of the rotating seat (5) facing the fixed seat (3); all the movable parts (4) are arranged in the mounting cavity.

13. The crimping machine according to any one of claims 1 to 6, characterized in that: The rotating seat (5) is disc-shaped.

14. The crimping machine according to claim 13, wherein: The unlocking device (6) is arranged on the rotating handle (52).

15. The crimping machine according to claim 14, wherein: The unlocking device (6) comprises: A first telescopic member (61) is inserted into the inner cavity (520) of the rotating handle (52), wherein the inner end thereof can act on the limiting portion (32) and the outer end thereof extends out of the rotating handle (52); a first biasing member (63) disposed in the rotating handle (52) and sleeved outside the first telescopic member (61), applying a first biasing force toward the limiting portion (32) to the first telescopic member (61); A control switch (62) is telescopically disposed on the outer end of the rotating handle (52); when the control switch (62) is extended, the inner end of the first telescopic member (61) is in the unlocked state, and when the control switch (62) is extended, the inner end of the first telescopic member (61) is in the locked state under the first biasing force of the first biasing member (63).

16. The crimping machine according to claim 15, wherein: The control switch (62) includes: a second telescopic member (621) passing through the outer end of the first telescopic member (61); a second biasing member (622) disposed inside the outer end of the first telescopic member (61), one end of which is connected to the bottom of the second telescopic member (621) and the other end of which abuts against the inner bottom of the outer end of the first telescopic member (61), applying a second biasing force toward the inner bottom of the outer end of the first telescopic member (61) to the second telescopic member (621), wherein the second biasing force is perpendicular to the direction of the first biasing force; The connecting member (623) has one end connected to the second telescopic member (621) and the other end extending toward the inner end of the limiting portion (32) and forming a bent portion; when performing an extending movement, the bent portion of the connecting member (623) extends out of the notch (64) provided on one side of the first telescopic member (61) and abuts against the inner wall of the first telescopic member (61), so that the unlocking device (6) is in an unlocked state; when performing an extending movement, the connecting member (623) extends into the notch (64) under the second biasing force of the second biasing member and abuts against the inner wall of the rotating handle (52), so that the unlocking device (6) is in a locked state.

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