Simple closing clamp
By simplifying the locking structure design, the endoscope clip achieves efficient clamping in confined spaces, solving the problem of complex locking structures in existing technologies, improving the reliability and stability of the endoscope clip, and making it suitable for multiple application scenarios.
Patent Information
- Application Number
- CN202422797263.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-11-15
AI Technical Summary
Existing endoscope clips have complex locking structures, making it difficult to achieve effective locking within the narrow working channel of the endoscope. In particular, the three-arm clip structure is even more complex and cannot meet the closure requirements of larger defects.
A simple closing clamp was designed. The initial locking structure abuts against each other to reduce the radial dimension. The clamping arm is locked through its own elastic deformation and limiting structure. The locking structure is simplified and it is suitable for narrow operating spaces.
It achieves efficient clamping in confined spaces, simplifies structural design, reduces product complexity and failure rate, improves reliability and stability, and is suitable for multi-scenario applications.
Smart Images
Figure CN223569353U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to endoscope minimally invasive surgery's medical instrument technical field, especially in a simple and easy closed clamp. BACKGROUND
[0002] The most commonly used soft endoscopic gastrointestinal tract defect suture instrument is an endoscopic clamp. The endoscopic clamp directly passes through the endoscopic working channel, without the need for mirror installation, making the operation efficient. Due to the small inner diameter of the soft endoscopic working channel, the endoscopic clamp is required to have a thin outer diameter, which greatly increases the difficulty of development and design. In order to design the arrangement structure in the limited size space, how to design the locking structure of the endoscopic clamp is crucial.
[0003] At present, most of the existing endoscopic clamp technology, the locking structure is realized by the interference with the structure on the outer wall or the inner wall of the endoscopic clamp shell, which increases the complexity of the structure. In addition, the traditional endoscopic clamp (double-arm clamp) is mainly applied to the closure of small mucosal tissue defects. For larger defects, there is a special endoscopic clamp (three-arm clamp) that can effectively close large defects. However, in the existing three-arm clamp technology, the three-arm clamp structure is more complex than the double-arm clamp structure. SUMMARY
[0004] The embodiment of the utility model provides a simple and easy closed clamp, it includes: frame body, two clamping arms, two clamping arms are hinged and are installed on the frame body, the clamping arm includes clamping portion, connecting portion and control portion which are sequentially arranged, two connecting portions are hinged, drive assembly, drive assembly is connected with two control portions respectively, drive assembly is configured as control clamping portion relative to frame body rotation, and two locking structures, two locking structures are arranged on two control portions respectively, wherein, the simple and easy closed clamp has initial state, opening state and locking state which change in turn, in initial state, two clamping portions are closed, two locking structures are abutted, in opening state, two clamping portions are separated, two locking structures are separated, in locking state, two clamping portions are closed, two locking structures are limited to make two clamping arms relative fixation.
[0005] In some embodiments, at least one locking structure can move relative to the clamping arm; when the initial state changes to the opening state, the locking structure moves relative to the clamping portion.
[0006] In some embodiments, one of the locking structures is a first elastic sheet, and the other is a fixing member; the first elastic sheet comprises a first fixed part and a first bent part, the first fixed part is connected with the clamping arm; in the initial state, the first bent part is pressed against the fixing member and is bent by the fixing member to move towards the first fixed part, so that the first elastic sheet is in the energy storage state; in the process from the initial state to the open state, the first bent part is separated from the fixing member, and under the action of the elastic force of the first elastic sheet, the first bent part moves relative to the clamping arm; in the locked state, the first bent part is clamped on the fixing member.
[0007] In some embodiments, the clamping hook of the first bent part can be hooked on the fixing member.
[0008] In some embodiments, the fixing member is provided with a plurality of matching teeth, and the clamping structure of the first bent part can be connected with the matching teeth.
[0009] In some embodiments, the fixing member is a fixing sheet, the fixing sheet is provided with a clamping hook, and the clamping hook of the first bent part is hooked with the clamping hook.
[0010] In some embodiments, both of the locking structures are second elastic sheets; the second elastic sheet comprises a second fixed part and a second bent part, the second fixed part is connected with the clamping arm; in the initial state, the two second bent parts are pressed against each other and are bent by being pressed towards the second fixed part, so that the second elastic sheet is in the energy storage state; in the process from the initial state to the open state, the two second bent parts are separated, and under the action of the elastic force of the second elastic sheet, the second bent part moves relative to the clamping arm; in the locked state, the clamping hooks of the two second bent parts are hooked.
[0011] In some embodiments, both of the locking structures comprise a connecting sheet and a reset member, the connecting sheet is connected with the clamping arm and can rotate relative to the clamping arm, and the reset member is connected with the connecting sheet and the clamping arm respectively; in the initial state, the two connecting sheets are pressed against each other, and the reset member is in the energy storage state; in the process from the initial state to the open state, the two connecting sheets are separated, and under the action of the elastic force of the reset member, the connecting sheet rotates relative to the clamping arm; in the locked state, the clamping structures of the two connecting sheets are clamped.
[0012] In some embodiments, in the direction from the control part to the clamping part, the line connecting the rotation centers of the two connecting pieces divides the space where the connecting pieces are located into a first part and a second part; during the process from the initial state to the open state, the clamping structures of the two connecting pieces enter the second part from the first part; during the process from the open state to the locked state, the center point of the first surface that is first contacted on the outer surface of the two connecting pieces is located in the second part.
[0013] In some embodiments, the clamping structure of the connecting piece is a clamping hook or a clamping tooth.
[0014] In some embodiments, a limiting piece is arranged on the clamping arm, the limiting piece is arranged near the locking structure and is located on the movement path of the locking structure, and the limiting piece is configured to limit the movement distance of the locking structure.
[0015] In some embodiments, the two locking structures are limiting racks arranged on the control part; in the initial state, the two limiting racks abut against each other; in the open state, the two limiting racks are separated; and in the locked state, the limiting teeth on the two limiting racks are engaged with each other.
[0016] In some embodiments, a groove is arranged on the control part, and the locking structure is located in the groove.
[0017] In some embodiments, the simple closure clamp further comprises a clamping core, the clamping core is fixedly connected with the frame body and is located between the two clamping parts, and the clamping core is configured to cooperate with the clamping parts.
[0018] In some embodiments, the driving assembly comprises a push-pull piece, the push-pull piece is connected with the control part and can rotate relative to the control part, and a pull-off opening is arranged on the push-pull piece.
[0019] In some embodiments, the frame body comprises a fixed seat and a connecting frame; the clamping arm is arranged on the fixed seat; the fixed seat is detachably connected with the connecting frame through a connecting piece; a limiting part is arranged on the push-pull piece, the limiting part is located between the connecting piece and the clamping arm, and the limiting part can interfere with the connecting piece in the movement direction of the push-pull piece.
[0020] Compared with the prior art, the above technical solution has the following advantages:
[0021] In the initial state, the two locking structures abut against each other and have no connection relationship, so that the distance between the two clamping parts is minimum, that is, the size in the radial direction of one end of the simple closure clamp inserted into the human body is smaller, so that the product is suitable for more scene applications, especially narrow operation space use; in the process of changing from the open state to the locked state, the two locking structures contact each other, and after reaching the locked position, the two locking structures are limited by each other, so that the clamping arms cannot move relative to each other. The above-mentioned locking structure can realize the mutual locking of the two clamping arms without complex and precise structure, on the one hand, the layout of the product is more simple, the occupied space is small, easy to install and maintain, and the operation is simple, on the other hand, the complexity and failure rate of the product are reduced, and the reliability and stability of the product are improved. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0023] Figure 1 The structure schematic diagram of the first embodiment of the simple closure clamp is shown in the present application.
[0024] Figure 2 The exploded structure schematic diagram of the simple closure clamp is shown in the present application. Figure 1
[0025] Figure 3 The partial sectional structure schematic diagram of the simple closure clamp is shown in the present application. Figure 1
[0026] Figure 4 The enlarged structure schematic diagram of A part in the present application. Figure 3
[0027] Figure 5 The structure schematic diagram of the simple closure clamp in the open state is shown in the present application. Figure 1
[0028] Figure 6 The structure schematic diagram of the simple closure clamp in the locked state is shown in the present application. Figure 1
[0029] Figure 7 The partial sectional structure schematic diagram of the simple closure clamp is shown in the present application. Figure 6
[0030] Figure 8 The enlarged structure schematic diagram of B part in the present application. Figure 7
[0031] Figure 9 Fig. 1 is a schematic view of a structure of a push-pull piece according to the present application; Figure 1 Fig. 2 is a schematic view of a structure of a push-pull piece according to the present application;
[0032] Figure 10 Fig. 3 is a schematic view of a structure of a push-pull piece according to the present application; Figure 1 Fig. 4 is a schematic view of a structure of a push-pull piece according to the present application;
[0033] Figure 11 Fig. 5 is a schematic view of a structure of a push-pull piece according to the present application; Figure 1 Fig. 6 is a schematic view of a structure of a push-pull piece according to the present application;
[0034] Figure 12 Fig. 7 is a schematic view of a structure of a simple closure clamp according to the present application;
[0035] Figure 13 Fig. 8 is a schematic view of a structure of a simple closure clamp according to the present application; Figure 12 Fig. 9 is a schematic view of a structure of a simple closure clamp according to the present application;
[0036] Figure 14 Fig. 10 is a schematic view of a structure of a simple closure clamp according to the present application; Figure 12 Fig. 11 is a schematic view of a structure of a simple closure clamp according to the present application;
[0037] Figure 15 Fig. 12 is a schematic view of a structure of a simple closure clamp according to the present application; Figure 14 Fig. 13 is a schematic view of a structure of a simple closure clamp according to the present application;
[0038] Figure 16 Fig. 14 is a schematic view of a structure of a simple closure clamp according to the present application;
[0039] Figure 17 Fig. 15 is a schematic view of a structure of a simple closure clamp according to the present application;
[0040] Figure 18 Fig. 16 is a schematic view of a structure of a simple closure clamp according to the present application;
[0041] Figure 19 Fig. 17 is a schematic view of a structure of a simple closure clamp according to the present application; Figure 18 Fig. 18 is a schematic view of a structure of a simple closure clamp according to the present application;
[0042] Figure 20 Fig. 19 is a schematic view of a structure of a simple closure clamp according to the present application; Figure 18 Fig. 20 is a schematic view of a structure of a simple closure clamp according to the present application;
[0043] Figure 21 Fig. 21 is a schematic view of a structure of a simple closure clamp according to the present application; Figure 20 Fig. 22 is a schematic view of a structure of a simple closure clamp according to the present application;
[0044] Figure 22 Fig. 23 is a schematic view of a structure of a simple closure clamp according to the present application;
[0045] Figure 23 Fig. 24 is a schematic view of a structure of a simple closure clamp according to the present application;Figure 22 The diagram shows the exploded structure of a simple closed clamp.
[0046] Figure 24 for Figure 22 A partial cross-sectional view of the simplified closed clamp shown.
[0047] Figure 25 for Figure 22 The diagram shown is a schematic of the simple closing clip in the open state.
[0048] Figure 26 for Figure 22 The diagram shows the structure of the simple closing clamp in the locked state;
[0049] Figure 27 for Figure 26 Schematic diagram of the cross-sectional structure along the CC direction;
[0050] Figure 28 for Figure 26 A partial cross-sectional view of the simplified closed clamp from another perspective;
[0051] Figure 29 for Figure 23 A schematic diagram of the structure of a clamping arm shown in the figure;
[0052] Figure 30 This is a partial cross-sectional view of the sixth embodiment of the simplified closing clip of this utility model in its initial state;
[0053] Figure 31 This is a partial cross-sectional view of the sixth embodiment of the simple closing clip of this utility model in the locked state;
[0054] Figure 32 This is a structural schematic diagram of the seventh embodiment of the simplified closing clip described in this utility model;
[0055] Figure 33 for Figure 32 The diagram shows the exploded structure of a simple closed clamp.
[0056] Figure 34 for Figure 32 The diagram shown is a schematic of the simple closing clip in the open state.
[0057] Figure 35 for Figure 32 The diagram shows the structure of the simple closing clamp in the locked state;
[0058] Figure 36 for Figure 35 Schematic diagram of the cross-sectional structure along the DD direction.
[0059] The attached figures are labeled as follows:
[0060] 10, frame body; 11, fixing seat; 12, connecting frame;
[0061] 20, clamping arm; 21, clamping part; 22, connecting part; 23, control part; 24, groove;
[0062] 30, driving assembly; 31, push-pull piece; 32, limiting part; 33, pull-off opening;
[0063] 40, locking structure; 41, first elastic sheet; 411, first fixing part; 412, first bending part; 42, fixing piece; 421, matching tooth; 43, second elastic sheet; 431, second fixing part; 432, second bending part; 44, connecting sheet; 45, reset piece; 46, limiting rack;
[0064] 51, first part; 52, second part; 60, limiting piece; 70, clamping core; 80, connecting piece. DETAILED DESCRIPTION
[0065] The utility model will be further explained in detail by the drawings and embodiments. Through these explanations, the characteristics and advantages of the utility model will become more clear and explicit.
[0066] Unless otherwise defined, all technical and scientific terms used in the utility model have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs; the terms used in the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model; the terms "include" and "have" and any variations thereof in the specification and the above-mentioned drawing description of the utility model are intended to cover the non-exclusive inclusion.
[0067] The "embodiments" mentioned in the utility model mean that the specific features, structures or characteristics described in combination with the embodiments can be contained in at least one embodiment of the utility model. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is not mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the utility model can be combined with other embodiments.
[0068] The word "exemplary" in the present utility model means "as an example, embodiment or illustration". Any embodiment described as "exemplary" is not necessarily to be construed as superior or better than other embodiments. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated. In the description of the present utility model, the technical terms "first", "second", "third" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.
[0069] In the description of the present utility model, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present utility model can be understood according to the specific circumstances. In the description of the present utility model, the meaning of "multiple" is more than two (including two), unless otherwise explicitly specified and limited.
[0070] In the description of the present utility model, the same reference signs represent the same parts, and for the sake of brevity, the detailed description of the same parts is omitted in different embodiments. It should be understood that the thickness, length and other dimensions of various components in the embodiments of the present utility model shown in the drawings, as well as the overall thickness, length and other dimensions of the integrated device, are only exemplary and should not constitute any limitation on the present utility model.
[0071] The technical solutions of the embodiments of the present utility model are described in detail below in combination with the drawings. The technical features involved in different embodiments of the present utility model described below can be combined with each other as long as there is no conflict.
[0072] As Figures 1 to 36 shown, the simple closure clamp provided by the present utility model comprises a frame body 10, two clamping arms 20, a driving assembly 30 and two locking structures 40.
[0073] The two clamping arms 20 are hingedly connected and mounted on the frame body 10. The clamping arm 20 comprises a clamping portion 21, a connecting portion 22 and a control portion 23 arranged in sequence. The two connecting portions 22 are hingedly connected.
[0074] The driving assembly 30 is connected with the two control portions 23 respectively. The driving assembly 30 is configured to control the rotation of the clamping portion 21 relative to the frame body 10.
[0075] The two locking structures 40 are arranged on the two control portions 23 respectively.
[0076] The simple closure clamp has an initial state, an open state and a locked state in turn.
[0077] In the initial state, the two clamping portions 21 are closed, the two locking structures 40 abut against each other, and the two locking structures 40 have no connection relationship, so that the distance between the two clamping portions 21 is minimized, that is, the size of one end of the simple closure clamp inserted into the human body in the radial direction is smaller, so that the product is suitable for more scene applications, especially narrow operation space use.
[0078] In the open state, the two clamping portions 21 are separated, and the two locking structures 40 are separated. In this process, the clamping portions 21 are opened to each other to prepare for clamping the human tissue, and the two locking structures 40 are prepared for mutual locking.
[0079] In the locked state, the two clamping portions 21 are closed, and the two locking structures 40 are limited, so that the two clamping arms 20 are relatively fixed, and the two locking structures 40 are limited by each other, so that the clamping arms 20 cannot move relatively.
[0080] The simple closure clamp provided by the utility model has simple structure, and can realize mutual locking of the two clamping arms 20 without complex and precise structure. On the one hand, the layout of the product is more simple, the occupied space is small, and the product is easy to install and maintain, and the operation is simple. On the other hand, the complexity and failure rate of the product are reduced, and the reliability and stability of the product are improved.
[0081] As shown in Figures 1 to 31 In one embodiment of the utility model, a recess 24 is arranged on the control portion 23, and the locking structure 40 is located in the recess 24. Specifically, a recess 24 is arranged on one control portion 23, and the recess 24 and the outer surface of the other control portion 23 form an accommodation space, and the locking structure 40 is located in the accommodation space. Alternatively, recesses 24 are arranged on the two control portions 23, and the two recesses 24 are connected to form an accommodation space, and the locking structure 40 is located in the accommodation space.
[0082] The recess 24 provides an installation space for the locking structure 40, so as to reasonably utilize the space on the clamping arm 20, thereby reducing the size of the simple closure clamp in the radial direction, so that the product is suitable for more scene applications, especially narrow operation space use.
[0083] As shown in Figures 1 to 21 , as shown in Figures 32 to 36 In one embodiment of the utility model, the simple closure clamp further comprises a clamping core 70. The clamping core 70 is fixedly connected with the frame body 10 and located between the two clamping portions 21, and the clamping core 70 is configured to cooperate with the clamping portion 21.
[0084] The two clamping arms 20 can clamp the human tissue in cooperation with the clamping core 70, that is, the simple closure clamp can realize the effect of a three-arm clamp, so as to increase the use range of the product.
[0085] As shown in Figures 1 to 36 the utility model discloses one embodiment, drive assembly 30 includes push -pull piece 31. Push -pull piece 31 is connected with control portion 23, and can rotate relative to control portion 23, and the pull-off mouth 33 is arranged on push -pull piece 31.
[0086] The frame body 10 includes a fixed seat 11 and a connecting frame 12. The connecting frame 12 can be a spring tube. The clamping arm 20 is arranged on the fixed seat 11. The fixed seat 11 is detachably connected with the connecting frame 12 through the connecting piece 80.
[0087] The push -pull piece 31 is provided with a limiting portion 32, and the limiting portion 32 is located between the connecting piece 80 and the clamping arm 20. Along the moving direction of the push -pull piece 31, the limiting portion 32 can interfere with the connecting piece 80.
[0088] When the simple closure clamp is in the locked state, the operator continues to pull the push -pull piece 31 until the push -pull piece 31 is disconnected from the pull-off mouth 33. When the limiting portion 32 interferes with the connecting piece 80, the push -pull piece 31 separates the connecting piece 80 from the fixed seat 11 and the connecting frame 12, and the fixed seat 11 and the connecting frame 12 are separated, and only the fixed seat 11 and the clamping arm 20 are left in the human body.
[0089] The simple closure clamp provided by the utility model is specifically operated as follows:
[0090] 1. The simple closure clamp is in the initial state, and the two clamping portions 21 are closed together, and the two locking structures 40 abut against each other. The simple closure clamp is inserted into the defect surface of the human tissue.
[0091] 2. The push -pull piece 31 is pushed, and the push -pull piece 31 drives the clamping arm 20 to rotate relative to the frame body 10 along the first rotation direction, so that the simple closure clamp changes from the initial state to the open state. In the open state, the two clamping portions 21 are separated, and the two locking structures 40 are separated.
[0092] 3. The push -pull piece 31 is pulled, and the push -pull piece 31 drives the clamping arm 20 to rotate relative to the frame body 10 along the second rotation direction (the second rotation direction is opposite to the first rotation direction), so that the simple closure clamp changes from the open state to the locked state. The clamping arm 20 clamps the human tissue. In the locked state, the two clamping portions 21 are closed together, and the two locking structures 40 are limited, so that the two clamping arms 20 are relatively fixed.
[0093] 4. The operator continues to drag the push-pull component 31 until it breaks off from the break point 33. Continue to drag the push-pull component 31. When the limiting part 32 interferes with the connecting part 80, the push-pull component 31, along with the connecting part 80, separates from the fixed seat 11 and the connecting frame 12. At the same time, the fixed seat 11 separates from the connecting frame 12, leaving only the fixed seat 11 and the clamping arm 20 inside the human body.
[0094] When the simple closing clamp includes a clamping core:
[0095] The clamping parts on both sides can independently cooperate with the clamping core to achieve closing, opening, and locking movements. After clamping the human tissue on both sides, continue to pull the control pieces on both sides simultaneously, causing the locking pieces on the two control parts to press and engage with each other, thereby locking the clamping parts on both sides. Regarding the implementation of the three-arm clamp, it should be noted that during the closing process of the clamping arm on the side that initially clamps the tissue, since the other clamping arm is movable, it can be pushed open to avoid interference with the closing of the clamping arm; after clamping and tightening the tissue on one side, move closer to the tissue on the other side, and use the other clamping arm and clamping core to clamp and close the tissue; finally, the two clamping arms press and lock with each other.
[0096] The following describes several embodiments of the simple closing clip in detail with reference to the accompanying drawings.
[0097] Example 1
[0098] like Figures 1 to 17 As shown, the simple closing clamp provided by this utility model includes: a frame 10, two clamping arms 20, a drive assembly 30, and two locking structures 40.
[0099] Two clamping arms 20 are hinged together and mounted on the frame 10. Each clamping arm 20 includes a clamping part 21, a connecting part 22 and a control part 23 arranged in sequence. The two connecting parts 22 are hinged together.
[0100] The drive assembly 30 is connected to two control units 23 respectively, and the drive assembly 30 is configured to control the rotation of the clamping unit 21 relative to the frame 10.
[0101] Two locking structures 40 are respectively installed on the two control units 23.
[0102] At least one locking structure 40 is movable relative to the clamping arm 20.
[0103] When the initial state changes to the open state, the locking structure 40 moves relative to the clamping portion 21 to move the clamping structure of the locking structure to the locking position, so that the clamping structure of one locking structure can be locked with the clamping structure of the other locking structure in the locked state; specifically, the locking structure 40 moves relative to the clamping portion 21 to increase the size of the locking structure 40 in the width direction (the direction from the control portion 23 to the clamping portion 21 is the length direction, and the length direction is perpendicular to the width direction); or, the locking structure 40 moves relative to the clamping portion 21, and the slot of the locking structure 40 faces the other locking structure, and part of the other locking structure can be inserted into the slot to lock the two locking structures; or, in the initial state, part of the two locking structures overlaps; in the process of changing to the open state, one or both locking structures rotate relatively to make the clamping structure of the locking structure enter the locking position; in the process of changing to the locked state, part of the two locking structures overlaps, and the clamping structure is locked with the other locking structure.
[0104] The locking structure 40 is specifically implemented as follows:
[0105] One locking structure 40 is a first elastic sheet 41, and the other locking structure 40 is a fixed part 42. It can be understood that the fixed part 42 can be extruded and deformed relative to the first elastic sheet 41, and in the process of product use, the fixed part 42 will not be deformed as much as the first elastic sheet 41.
[0106] The first elastic sheet 41 includes a first fixed portion 411 and a first bending portion 412, and the first fixed portion 411 is connected with the clamping arm 20.
[0107] In the initial state, the first bending portion 412 abuts against the fixed part 42 and is extruded by the fixed part 42 to be close to the first fixed portion 411 and be bent, so that the first elastic sheet 41 is in a force storage state.
[0108] In the process of changing from the initial state to the open state, the first bending portion 412 is separated from the fixed part 42, and under the action of the self-elastic force of the first elastic sheet 41, the first bending portion 412 moves relative to the clamping arm 20.
[0109] In the locked state, the first bending portion 412 is clamped on the fixed part 42.
[0110] In the initial state, the first elastic sheet 41 is in a force storage state; in the process of changing from the initial state to the open state, the first elastic sheet 41 gradually separates from the fixing member 42, in the process, the first elastic sheet 41 gradually opens under the action of its own elasticity, when the first elastic sheet 41 completely separates from the fixing member 42, the clamping structure of the first bending part 412 enters the locked state; in the process of changing from the open state to the locked state, the first elastic sheet 41 gradually contacts the fixing member 42, until the clamping structure is clamped on the fixing member 42, that is, the two clamping arms 20 are in the locked state.
[0111] As shown in Figure 16 and Figure 17 , in an embodiment of the utility model, the clamping arm 20 is provided with a limiting member 60. The limiting member 60 is arranged close to the locking structure 40 and is located on the movement path of the locking structure 40, and the limiting member 60 is configured to limit the movement distance of the locking structure 40.
[0112] In the process of locking the two locking structures 40, the locking structure 40 will be deformed, and the limiting member 60 limits the deformation degree of the locking structure 40 to ensure that the locking structure 40 can restore to the original state under the action of its own elasticity, thereby ensuring the reliability of the connection between the two locking structures 40.
[0113] As shown in Figures 1 to 11 , in a specific embodiment of the utility model, the fixing member 42 is provided with a plurality of matching teeth 421, and the clamping structure of the first bending part 412 can be connected with the matching teeth 421. Specifically, the fixing member 42 can be a separate component, or can be an integral structure with the clamping arm 20.
[0114] The operator can cooperate the clamping structure with one matching tooth 421 according to the thickness of the human tissue clamped by the clamping arm 20, that is, connect the clamping structure with any matching tooth 421 according to the needs, to realize the locking of the two clamping arms 20, and the structure of the above fixing member 42 increases the use range of the product.
[0115] As shown in Figures 12 to 15 , in another specific embodiment of the utility model, the fixing member 42 is a fixing sheet, and the fixing sheet is provided with a clamping hook, and the clamping hook of the first bending part 412 is hooked with the clamping hook. Specifically, the fixing sheet can be a separate component, or can be an integral structure with the clamping arm 20 (the fixing sheet is part of the clamping arm 20 cut off).
[0116] The structure of the above fixing sheet is simple and convenient to manufacture.
[0117] As shown in Figure 16 and Figure 17As shown, in another specific embodiment of the present invention, the hook of the first bent portion 412 can be hooked onto the fixing member 42.
[0118] The first bend 412 can be directly hooked onto the fastener 42, which is simple in structure and easy to manufacture.
[0119] Example 2
[0120] like Figures 18 to 21 As shown, the scheme of Embodiment 2 is largely the same as that of Embodiment 1, with the main difference being that both locking structures 40 are second spring pieces 43.
[0121] The second spring 43 includes a second fixing part 431 and a second bending part 432, and the second fixing part 431 is connected to the clamping arm 20.
[0122] In the initial state, the two second bending portions 432 abut against each other and are squeezed toward the second fixing portion 431 and bent so that the second spring piece 43 is in a state of stored force.
[0123] During the process of changing from the initial state to the open state, the two second bending parts 432 separate, and under the action of the elastic force of the second spring 43 itself, the second bending part 432 moves relative to the clamping arm 20.
[0124] In the locked state, the hooks of the two second bends 432 are engaged.
[0125] In the initial state, the two second spring pieces 43 are in a charged state; during the process of changing from the initial state to the open state, the two second spring pieces 43 gradually separate. During this process, the second spring pieces 43 gradually open under the action of their own elastic force. When the two second spring pieces 43 are completely separated, the snap-fit structure of the second bending part 432 enters the locking position; during the process of changing from the open state to the locked state, the two second spring pieces 43 gradually come into contact with each other and hook together, so that the two second spring pieces 43 limit each other so that the two clamping arms 20 are in the locked state.
[0126] Example 3
[0127] like Figures 22 to 32 As shown, the scheme of Embodiment 3 is largely the same as that of Embodiment 1. The main difference is that both locking structures 40 include a connecting piece 44 and a reset piece 45. The connecting piece 44 is connected to the clamping arm 20 and can rotate relative to the clamping arm 20. The reset piece 45 is connected to the connecting piece 44 and the clamping arm 20 respectively.
[0128] In the initial state, the two connecting pieces 44 abut against each other, and the reset piece 45 is in a charging state.
[0129] In the process from the initial state to the open state, the two connecting pieces 44 are separated, and the connecting pieces 44 rotate relative to the clamping arms 20 under the elastic force of the reset members 45.
[0130] In the locked state, the clamping structures of the two connecting pieces 44 are clamped. Specifically, the clamping structure of the connecting piece 44 is a clamping hook or a clamping tooth.
[0131] In the initial state, the two reset members 45 are in a force storage state; in the process from the initial state to the open state, the two connecting pieces 44 are gradually separated, and in this process, the connecting pieces 44 are gradually opened under the elastic force of the reset members 45, and when the two connecting pieces 44 are completely separated, the clamping structure of the connecting piece 44 enters the locked position; in the process from the open state to the locked state, the two connecting pieces 44 gradually contact each other, and the two connecting pieces 44 are clamped together, so that the two clamping arms 20 are in the locked state.
[0132] As shown in Figures 22 to 31 In an embodiment of the utility model, in the direction from the control part 23 to the clamping part 21, the connecting line of the rotation centers of the two connecting pieces 44 divides the space where the connecting pieces 44 are located into a first part 51 and a second part 52.
[0133] In the process from the initial state to the open state, the clamping structure of the two connecting pieces 44 enters the second part 52 from the first part 51; the rotation from the first part 51 to the second part 52 is positive rotation, and the rotation in the direction opposite to the positive rotation is reverse rotation.
[0134] In the process from the open state to the locked state, the center point of the surface that is first contacted on the outer surface of the two connecting pieces 44 is located in the second part 52.
[0135] The above parameter requirements make the contact point of the two connecting pieces 44 pass the rotation center, which avoids the situation that the two connecting pieces 44 cannot be clamped due to reverse rotation during the contact process, that is, it is ensured that the two connecting pieces 44 can be effectively connected in the process from the open state to the locked state.
[0136] Embodiment Four
[0137] As shown in Figures 32 to 36 The utility model provides a simple and easy to close clamp, which comprises a frame body 10, two clamping arms 20, a driving assembly 30 and two locking structures 40.
[0138] The two clamping arms 20 are hingedly connected and installed on the frame body 10, and the clamping arm 20 comprises a clamping part 21, a connecting part 22 and a control part 23 which are sequentially arranged, and the two connecting parts 22 are hingedly connected.
[0139] The driving assembly 30 is connected with the two control parts 23 respectively, and is configured to control the clamping parts 21 to rotate relative to the frame 10.
[0140] The two locking structures 40 are arranged on the two control parts 23 respectively.
[0141] The two locking structures 40 are limiting racks 46 arranged on the control parts 23.
[0142] In the initial state, the two limiting racks 46 abut against each other; in the open state, the two limiting racks are separated; and in the locked state, the limiting teeth on the two limiting racks 46 are engaged with each other.
[0143] In the initial state, the two limiting racks 46 abut against each other; in the process from the initial state to the open state, the two limiting racks 46 are gradually separated; in the process from the open state to the locked state, the two limiting racks 46 are gradually contacted; in this process, the limiting teeth on the two limiting racks 46 are engaged with each other, that is, the two limiting racks 46 are limited to each other, so that the two clamping arms 20 are in the locked state. The above-mentioned locking structure 40 has a simple structure, and can realize the mutual locking of the two clamping arms 20 without complex and precise structure.
[0144] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.
Claims
1. A simple closure clip, characterized in that, The simple closure clamp comprises: a frame body; two clamping arms hinged to each other and mounted on the frame body, the clamping arms comprising a clamping portion, a connecting portion and a control portion arranged in sequence, the two connecting portions being hinged to each other; a driving assembly connected with the two control portions respectively, the driving assembly being configured to control the rotation of the clamping portion relative to the frame body; and two locking structures arranged on the two control portions respectively; wherein the simple closure clamp has an initial state, an open state and a locked state in sequence; in the initial state, the two clamping portions are closed, and the two locking structures are abutted against each other; in the open state, the two clamping portions are separated, and the two locking structures are separated; in the locked state, the two clamping portions are closed, and the two locking structures are limited to relatively fix the two clamping arms.
2. The simple closure clamp according to claim 1, wherein at least one locking structure is movable relative to the clamping arm; when the initial state changes to the open state, the locking structure moves relative to the clamping portion.
3. The simple closure clamp according to claim 2, wherein one of the locking structures is a first elastic piece, and the other is a fixed piece; the first elastic piece comprises a first fixed portion and a first bent portion, and the first fixed portion is connected with the clamping arm; in the initial state, the first bent portion is abutted against the fixed piece and is pressed by the fixed piece to be bent towards the first fixed portion, so that the first elastic piece is in a force-accumulating state; in the process from the initial state to the open state, the first bent portion is separated from the fixed piece, and under the action of the self-elastic force of the first elastic piece, the first bent portion moves relative to the clamping arm; in the locked state, the first bent portion is clamped on the fixed piece.
4. The simple closure clamp according to claim 3, wherein a hook of the first bent portion can be hooked on the fixed piece.
5. The simple closure clamp according to claim 3, wherein a plurality of matching teeth are arranged on the fixed piece, and a clamping structure of the first bent portion can be connected with the matching teeth.
6. The simple closure clamp according to claim 3, wherein the fixed piece is a fixed sheet, a clamping hook is arranged on the fixed sheet, and a hook of the first bent portion is hooked with the clamping hook.
7. The simple closure clamp according to claim 2, wherein both of the locking structures are second elastic pieces; the second elastic pieces comprise second fixed portions and second bent portions, and the second fixed portions are connected with the clamping arms; in the initial state, the two second bent portions are abutted against each other and are pressed to be bent towards the second fixed portions, so that the second elastic pieces are in a force-accumulating state; in the process from the initial state to the open state, the two second bent portions are separated, and under the action of the self-elastic force of the second elastic pieces, the second bent portions move relative to the clamping arms; in the locked state, hooks of the two second bent portions are hooked with each other.
8. The simple closure clamp of claim 2, wherein each of the locking structures comprises a connecting piece and a reset member, the connecting piece is connected to the clamping arm and is rotatable relative to the clamping arm, and the reset member is connected to the connecting piece and the clamping arm respectively. In the initial state, the two connecting pieces abut against each other, and the reset members are in a force storage state. In the process from the initial state to the open state, the two connecting pieces are separated, and the connecting pieces rotate relative to the clamping arm under the action of the reset members. In the locked state, the clamping structures of the two connecting pieces are clamped.
9. The simple closure clamp of claim 8, wherein in the direction from the control part to the clamping part, the line connecting the centers of rotation of the two connecting pieces divides the space in which the connecting pieces are located into a first part and a second part. In the process from the initial state to the open state, the clamping structures of the two connecting pieces enter the second part from the first part. In the process from the open state to the locked state, the center point of the first surface that first contacts on the outer surface of the two connecting pieces is located in the second part.
10. The simple closure clamp of claim 8, wherein the clamping structure of the connecting piece is a clamping hook or a clamping tooth.
11. The simple closure clamp of claim 2, wherein a limiting member is arranged on the clamping arm, the limiting member is arranged near the locking structure and is located on the movement path of the locking structure, and the limiting member is configured to limit the movement distance of the locking structure.
12. The simple closure clamp of claim 1, wherein the two locking structures are limiting racks arranged on the control part. In the initial state, the two limiting racks abut against each other. In the open state, the two limiting racks are separated. In the locked state, the limiting teeth on the two limiting racks mesh with each other.
13. The simple closure clamp of any one of claims 1 to 12, wherein a groove is arranged on the control part, and the locking structure is located in the groove. The simple closure clamp further comprises a clamping core that is fixedly connected to the frame body and located between the two clamping parts, and the clamping core is configured to cooperate with the clamping parts. The driving assembly comprises a push-pull piece that is connected to the control part and is rotatable relative to the control part, and a pull-off opening is arranged on the push-pull piece.
16. The simple closure clamp of claim 15, wherein the frame body comprises a fixed seat and a connecting frame. The clamping arm is arranged on the fixed seat. The fixed seat is detachably connected to the connecting frame by a connecting piece. A limiting part is arranged on the push-pull piece, the limiting part is located between the connecting piece and the clamping arm, and along the movement direction of the push-pull piece, the limiting part can interfere with the connecting piece.
14. The simple closure clip of any one of claims 1 to 12, wherein, 15. The simple closure clip of any one of claims 1 to 12, wherein,