A handle assembly for a clip applier, a clip assembly for a clip applier, and a clip applier

Abstract

The utility model discloses a handle assembly of clip applier, a clamp assembly of clip applier and clip applier, include: handle main part, operating assembly includes movable element and fixed part, and fixed part connects handle main part, and the first wall body of movable element is set up outside, along both common axial direction, and movable element is reciprocal at least between first position and second position relative to fixed part, and movable element is equipped with the insertion hole along its axial direction, and the first wall body is equipped with the installation hole that communicates with insertion hole, and the installation hole is equipped with the locking piece, and fixed part is equipped with the let -by slot, and let -by slot is set up to the first wall body and can accommodate the at least one part of locking piece, when movable element is located first position, and fixed part restricts locking piece and makes it partially from installation hole and stretches to insertion hole, when movable element is located second position, and clamp assembly can insert or pull out insertion hole, and when clamp assembly is inserted and is pulled, and push locking piece and make it partially from installation hole and stretch into let -by slot and exit insertion hole, can realize that clip applier is simple and quick dismounting.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a handle assembly of a clamping forceps, a clamping forceps assembly, and a clamping forceps. Background Technology

[0002] In surgical procedures, clamps play an important role. They are mainly used for clamping, fixing, cutting, or suturing tissues, blood vessels, or other structures.

[0003] In related technologies, reusable clamps require the clamp assembly and handle assembly to be installed together for use. After use, both need to be disassembled for cleaning and disinfection. However, the disassembly and assembly structure between the clamp assembly and handle assembly in existing technologies is complex and cumbersome, which is inconvenient for both manufacturers and users.

[0004] Therefore, how to achieve simple and quick assembly and disassembly of clamping pliers is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a handle assembly for clamping pliers, which enables simple and quick assembly and disassembly of the clamping pliers.

[0006] Another objective of this invention is to provide a clamping assembly for applying clamps, which can be easily and quickly assembled and disassembled.

[0007] Another objective of this invention is to provide a clamping pliers that can be easily and quickly assembled and disassembled.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A handle assembly for a clamping pliers, for detachably connecting to a clamping assembly of the clamping pliers, comprising:

[0010] handle body;

[0011] An operating component includes a movable part and a fixed part that are movably connected. One end of the fixed part is fixedly installed on the handle body, and the other end is sleeved on the first wall of the movable part. Along the common axis of the two, the movable part can reciprocate between at least a first position and a second position relative to the fixed part.

[0012] The movable component has a plug-in hole along its axial direction for detachably connecting to the clamp assembly, and the first wall surrounds the plug-in hole; a mounting hole communicating with the plug-in hole is provided through the first wall, and a locking component is provided in the mounting hole. The locking component is movable relative to the mounting hole and can partially extend from the mounting hole into the plug-in hole and partially extend from the mounting hole into the first wall.

[0013] The fastener is provided with a relief groove, which is opened toward the first wall and can accommodate at least a portion of the locking member;

[0014] When the movable member is in the first position, the fixing member restricts the movement range of the locking member so that the locking member partially extends from the mounting hole into the insertion hole; when the movable member is in the second position, the clamp assembly can be inserted into or pulled out of the insertion hole, and when the clamp assembly is inserted or pulled out, it pushes the locking member so that the locking member partially extends from the mounting hole out of the first wall body, into the relief groove, and out of the insertion hole.

[0015] Optionally, the movable element includes:

[0016] A double-layer sleeve includes an inner first wall and an outer second wall, with a first gap between them. The two are connected to each other at one end and have a first opening communicating with the first gap at the other end.

[0017] The fastener includes a fixed wall body, which is inserted into the first gap through the first opening, and the clearance groove is provided on the side of the fixed wall body facing the first wall body.

[0018] Optionally, a second gap is provided between the second wall and the fixed wall, and an elastic element is provided in the second gap. The connection between the first wall and the second wall limits one end of the elastic element. The fixed element has a stepped surface that abuts against the other end of the elastic element. The elastic element is used to provide an elastic force to the double-layer sleeve to move from the second position to the first position.

[0019] Optionally, the fastener further includes a limiting wall connected to the fixed wall body, the limiting wall body being sleeved inside the fixed wall body and having a third gap between it and the fixed wall body, the third gap being used for sliding engagement with the first wall body.

[0020] Optionally, the movable component further includes:

[0021] An operating component is located outside the second wall and connected to the second wall, and is used to bear loads to drive the double-layer sleeve to move.

[0022] Optionally, the clearance groove is provided with a guide surface, which gradually moves radially away from the insertion hole along the insertion direction of the clamp assembly;

[0023] The guide surface is used to guide and limit the locking member, so that when the movable member moves from the second position to the first position, it applies a pressing force to the locking member, causing the locking member to extend into the insertion hole.

[0024] Optionally, when the movable member is in the first position, the locking member extends partially from the mounting hole into the insertion hole and into the relief groove to prevent the movable member from disengaging from the fixing member.

[0025] Optionally, the clearance groove is an annular groove.

[0026] Optionally, the movable part is provided with a first positioning structure for slidingly engaging with a second positioning structure provided on the clamp assembly along their axial directions to define the circumferential positions of the clamp assembly and the movable part.

[0027] Optionally, the locking member is a spherical member, and the maximum inner diameter of the opening of the mounting hole facing the insertion hole is smaller than the maximum outer diameter of the spherical member.

[0028] A clamping assembly for applying clamps, comprising:

[0029] Pliers, used to grip objects;

[0030] The inner core assembly has a first end connected to the pliers head and a second end connected to the handle assembly of the clamping pliers and driven by the handle assembly to move, thereby moving the pliers head.

[0031] An outer sheath is fitted around the outer periphery of the inner core assembly and is circumferentially fixed to the inner core assembly. The first end of the outer sheath faces the pliers head, and its second end is provided with a limiting groove for detachable connection with the handle assembly of the clamping pliers.

[0032] Optionally, the second end of the outer sheath is provided with a second positioning structure for slidingly engaging with the first positioning structure provided on the movable part along their axial directions to define the circumferential position of the clamp assembly and the movable part.

[0033] A clamping pliers includes: a handle assembly of the clamping pliers and a clamping assembly of the clamping pliers.

[0034] The handle assembly of the clamping pliers provided by this utility model has the following beneficial effects:

[0035] When the clamp assembly is not installed on the handle assembly, the movable part is in the first position. At this time, the locking member extends partially from the mounting hole into the insertion hole under the constraint of the fixing member. When the clamp assembly needs to be installed, a force is applied to the movable part, causing it to move from the first position to the second position. During this process, the locking member moves together with the movable part under the constraint of the mounting hole. When the movable part moves to the second position, the locking member can at least partially enter the clearance groove. The clearance groove has a clearance function, forming a clearance space for accommodating at least part of the locking member. At this time, the clamp assembly is inserted into the insertion hole. During the insertion of the clamp assembly, the clamp assembly pushes the locking member, causing the locking member to move radially away from the insertion hole. The locking member extends partially from the mounting hole out of the first wall body, into the clearance groove, and out of the insertion hole, thereby avoiding the locking member interfering with the installation of the clamp assembly and facilitating the insertion of the clamp assembly into place. Once the clamp assembly is inserted into place, the moving part moves from the second position to the first position by force. During this process, the locking part moves together with the moving part under the limitation of the mounting hole. When the moving part moves to the first position, the locking part extends partially from the mounting hole into the insertion hole under the limitation of the fixing part to lock the clamp assembly, so that the clamp assembly cannot be pulled out from the insertion hole, thus achieving the locking of the clamp assembly and the moving part.

[0036] After a single use, the movable part can be moved from the first position to the second position. The clearance groove allows the locking part to exit the insertion hole, thereby releasing the clamp assembly and allowing the clamp assembly to be pulled out of the insertion hole. This separates the clamp assembly from the handle assembly, allowing the clamp assembly to be cleaned, disinfected, etc., and making the clamp assembly reusable.

[0037] It can be seen that when disassembling and assembling the clamp assembly, the movable part is first moved from the first position to the second position, then the clamp assembly is inserted or pulled out, and then the movable part is moved from the second position to the first position. That is, when disassembling and assembling the clamp assembly, it is only necessary to switch the movable part between the first position and the second position. It can be seen that the structure of the handle assembly is simple and convenient to operate, and can realize the quick disassembly and assembly of the clamp assembly.

[0038] The clamping assembly of the clamping pliers provided by this utility model can be disassembled and assembled during the switching of the movable part of the handle assembly of the clamping pliers between the first position and the second position. The disassembly and assembly of the clamping assembly is simple and quick.

[0039] The clamping pliers provided by this utility model include the handle assembly and clamping assembly of the clamping pliers, which can be easily and quickly disassembled and assembled. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0041] Figure 1 An exploded view of the clamping pliers provided in a specific embodiment of this utility model;

[0042] Figure 2 A schematic diagram of the internal structure of the movable part in its first position after assembly with the fixed part;

[0043] Figure 3 for Figure 2 Another structural diagram from another perspective;

[0044] Figure 4 A schematic diagram of the internal structure of the movable part in the second position after assembly of the movable and fixed parts;

[0045] Figure 5 A schematic diagram of the internal structure of the movable part in the first position after the clamp assembly and the movable part are assembled;

[0046] Figure 6 This is a partial structural diagram of the outer sheath of the clamp assembly;

[0047] Figure 7 for Figure 2 Left view of the structure shown.

[0048] Figure label:

[0049] 1-Clamping assembly; 11-Inner core assembly; 12-Outer sheath; 121-Limiting groove; 122-Second positioning structure; 13-Clamping head; 14-Drive rod;

[0050] 2-Handle assembly; 21-Handle body; 211-Handle moving part; 212-Static spring; 213-Moving spring; 214-First fastener; 215-Second fastener; 22-Operating component; 221-Moving part; 2211-First wall; 2212-Insertion hole; 2213-Mounting hole; 2214-Second wall; 2215-Double sleeve; 2216-First gap; 2217-First opening; 2218-Second gap; 2219-Operating component; 2210-First positioning structure; 222-Fixing component; 2221-Leaning groove; 2222-Guide surface; 2223-Fixing wall; 2224-Step surface; 2225-Limiting wall; 2226-Third gap; 23-Locking component; 24-Elastic component; 25-Third positioning structure. Detailed Implementation

[0051] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0052] The core of this utility model is to provide a handle assembly for a clamping pliers, which is detachable and allows for simple and quick assembly and disassembly of the clamping pliers. Another core aspect of this utility model is to provide a clamping pliers assembly for a clamping pliers, which allows for simple and quick assembly and disassembly.

[0053] It should be noted that the preset direction in this embodiment refers to the length direction or axial direction of the clamp assembly 1. The preset direction includes two opposite orientations, defined as the first orientation and the second orientation. For ease of understanding, the first orientation is referred to as the attached orientation. Figure 3 The X-axis direction in the middle, the second direction is the auxiliary Figure 4 The -X axis direction in the diagram.

[0054] Please refer to Figures 1 to 5This utility model provides a handle assembly 2 for a clamping pliers, which is detachably connected to a clamping pliers assembly 1. The handle assembly 2 includes a handle body 21 and an operating component 22. The operating component 22 includes a movable member 221 and a fixing member 222 that are movably connected. One end of the fixing member 222 is fixedly installed on the handle body 21, and the other end is sleeved on the outside of the first wall 2211 of the movable member 221. Along the common axial direction of both, the movable member 221 can reciprocate between at least a first position and a second position relative to the fixing member 222. The movable member 221 has a insertion hole 2212 along its axial direction for detachably connecting to the clamping pliers assembly 1. The first wall 2211 surrounds the insertion hole 2212. A mounting hole 2213 communicating with the insertion hole 2212 is provided through the first wall 2211, and a locking member 23 is provided in the mounting hole 2213. The locking member 23 is movable relative to the mounting hole 2213 and can partially extend from the mounting hole 2213 into the insertion hole 2212 and partially extend from the mounting hole 2213 into the outside of the first wall 2211; the fixing member 222 is provided with a relief groove 2221, which is opened towards the first wall 2211 and can accommodate at least a portion of the locking member 23; when the movable member 221 is in the first position, the fixing member 222 restricts the range of movement of the locking member 23 so that the locking member 23 partially extends from the mounting hole 2213 into the insertion hole 2212; when the movable member 221 is in the second position, the clamp assembly 1 can be inserted into or pulled out of the insertion hole 2212, and when the clamp assembly 1 is inserted or pulled out, it pushes the locking member 23 so that the locking member 23 partially extends from the mounting hole 2213 into the outside of the first wall 2211, extends into the relief groove 2221, and exits the insertion hole 2212.

[0055] like Figure 2 and Figure 3 As shown, when the clamp assembly 1 is not installed onto the handle assembly 2, the movable member 221 is in the first position. At this time, the locking member 23 extends partially from the mounting hole 2213 into the insertion hole 2212 under the constraint of the fixing member 222. It is understood that the size of the mounting hole 2213 is smaller than the maximum size of the locking member 23, so that the locking member 23 is partially exposed in the insertion hole 2212, but will not fall out of the mounting hole 2213 into the insertion hole 2212. In this situation, the locking member 23 is constrained by the fixing member 222 and cannot exit the insertion hole 2212. Therefore, in this state, the clamp assembly 1 cannot be installed.

[0056] Please refer to Figure 3 and Figure 4 When clamp assembly 1 needs to be installed, a force is applied to movable part 221, causing movable part 221 to move from the first position to the second position, such as... Figure 3In the direction shown by the X-axis, during this process, the locking member 23 moves together with the movable member 221 under the limitation of the mounting hole 2213. When the movable member 221 moves to the second position, as shown by the X-axis... Figure 4 As shown, at least part of the locking member 23 can enter the relief groove 2221. The relief groove 2221 has a relief function, forming a relief space for accommodating at least part of the locking member 23. At this time, the clamp assembly 1 is inserted into the insertion hole 2212. During the insertion process of the clamp assembly 1, the clamp assembly 1 pushes the locking member 23, so that the locking member 23 moves radially away from the insertion hole 2212. The locking member 23 extends partially from the mounting hole 2213 to the outside of the first wall 2211, extends into the relief groove 2221, and exits the insertion hole 2212. This avoids the locking member 23 interfering with the installation of the clamp assembly 1, so as to facilitate the insertion of the clamp assembly 1 into place.

[0057] Please refer to Figure 4 and Figure 5 When the clamp assembly 1 is inserted into place, the movable part 221 moves from the second position to the first position through the action of force, such as... Figure 4 In the direction shown by the -X axis, during this process, the locking member 23 moves together with the movable member 221 under the limitation of the mounting hole 2213. When the movable member 221 moves to the first position, as shown by the -X axis, during this process, the locking member 23 moves together with the movable member 221 under the limitation of the mounting hole 2213. Figure 5 As shown, the locking member 23 extends partially from the mounting hole 2213 into the insertion hole 2212 under the limitation of the fixing member 222, thereby locking the clamp assembly 1 and preventing the clamp assembly 1 from being pulled out of the insertion hole 2212. This achieves the locking of the clamp assembly 1 and the handle assembly 2, thus realizing the assembly of the clamp assembly 1 and the handle assembly 2. For example, the clamp assembly 1 is provided with a limiting groove 121. When the movable member 221 is in the first position, the locking member 23 extends partially from the mounting hole 2213 into the insertion hole 2212 and extends into the limiting groove 121 of the clamp assembly 1. By utilizing the cooperation between the locking member 23 and the limiting groove 121, the axial relative position of the clamp assembly 1 and the movable member 221 is limited, preventing the clamp assembly 1 from being pulled out of the insertion hole 2212 and achieving the locking of the clamp assembly 1 and the movable member 221.

[0058] Understandably, after a single use, the movable part 221 can be moved from the first position to the second position. By utilizing the clearance groove 2221 to allow the locking part 23 to be disengaged from the insertion hole 2212, the locking part 23 can be released from the clamp assembly 1, allowing the clamp assembly 1 to be pulled out from the insertion hole 2212, thus separating the clamp assembly 1 from the handle assembly 2. This allows the clamp assembly 1 to be cleaned, disinfected, etc., making the clamp assembly 1 reusable.

[0059] It can be seen that when disassembling and assembling the clamp assembly 1, the movable part 221 is first moved from the first position to the second position, then the clamp assembly 1 is inserted or pulled out, and then the movable part 221 is moved from the second position to the first position. That is, when disassembling and assembling the clamp assembly 1, it is only necessary to switch the movable part 221 between the first position and the second position. It can be seen that the structure of the handle assembly 2 is simple and convenient to operate, and can realize the quick disassembly and assembly of the clamp assembly 1.

[0060] It should be noted that the specific number of locking members 23 is not limited in this embodiment of the utility model. The number of locking members 23 can be one or at least two, as long as the locking members 23 can press against the clamp assembly 1 to achieve locking between the clamp assembly 1 and the handle assembly 2. Figure 7 As shown, for example, there are three locking members 23, which are evenly distributed along the circumference of the movable member 2, so that the force in the circumference is more uniform.

[0061] Additionally, when the movable part 221 moves from the second position to the first position, to facilitate the partial extension of the locking part 23 from the mounting hole 2213 into the insertion hole 2212, please refer to... Figure 4 and Figure 5 In some embodiments, the clearance groove 2221 is provided with a guide surface 2222, which gradually moves radially away from the insertion hole 2212 along the insertion direction of the clamp assembly 1; the guide surface 2222 is used to guide and limit the locking member 23, so that when the movable member 221 moves from the second position to the first position, it applies a pressing force to the locking member 23, so that the locking member 23 partially extends from the mounting hole 2213 into the insertion hole 2212.

[0062] In other words, when the movable part 221 moves from the second position to the first position, it drives the locking part 23 to move together under the limitation of the mounting hole 2213. During this process, the locking part 23 abuts against the guide surface 2222. Since the guide surface 2222 gradually moves radially away from the insertion hole 2212 along the insertion direction of the clamp assembly 1, when the locking part 23 moves with the mounting hole 2213 towards the direction of the first position, the guide surface 2222 applies a squeezing force to the locking part 23, so that part of the locking part 23 gradually extends from the mounting hole 2213 into the insertion hole 2212. The setting of the guide surface 2222 can ensure the stability of the locking part 23 extending from the mounting hole 2213 into the insertion hole 2212, ensure that the locking part 23 locks the clamp assembly 1 smoothly, and reduce the impact on the clamp assembly 1.

[0063] It should be noted that the guide surface 2222 can be an inclined surface or an arc surface. For example, the guide surface 2222 can be a conical surface, a convex surface, or a concave surface.

[0064] In addition, for ease of processing, in some embodiments, the guide surface 2222 and the relief groove 2221 are formed as an integral groove.

[0065] In addition, for the specific implementation of the structures of movable part 221 and fixed part 222, please refer to... Figure 2 In some embodiments, the movable component 221 includes a double-layer sleeve 2215, which includes an inner first wall 2211 and an outer second wall 2214. A first gap 2216 is provided between the first wall 2211 and the second wall 2214. The first wall 2211 and the second wall 2214 are connected to each other at one end and a first opening 2217 communicating with the first gap 2216 is provided at the other end. The fixing component 222 includes a fixing wall 2223, which is inserted into the first gap 2216 through the first opening 2217. A clearance groove 2221 is provided on the side of the fixing wall 2223 facing the first wall 2211.

[0066] In other words, when the movable part 221 is assembled with the fixed part 222, the fixed wall 2223 of the fixed part 222 is inserted into the first gap 2216 between the first wall 2211 and the second wall 2214 from the first opening 2217, so that the fixed wall 2223 is located between the first wall 2211 and the second wall 2214. This structure allows the movable part 221 and the fixed part 222 to restrict each other in the circumferential direction and guide each other during installation, which facilitates installation and positioning. Moreover, after assembly, the locking part 23 is located inside the fixed wall 2223. That is, the locking part 23 is wrapped by the fixed wall 2223 and the second wall 2214, which can prevent the locking part 23 from coming out. Furthermore, the first wall 2211, the fixed wall 2223 and the locking part 23 are located inside the second wall 2214, and the second wall 2214 can also protect the first wall 2211, the fixed wall 2223 and the locking part 23.

[0067] It should be noted that damping force can be used to allow the movable part 221 and the fixed part 222 to move relative to each other without easily disengaging; alternatively, the locking part 23, the mounting hole 2213, and the clearance groove 2221 can be structurally coordinated to prevent the movable part 221 and the fixed part 222 from disengaging; of course, mutually blocking protrusions can also be provided on the movable part 221 and the fixed part 222 to provide a limiting function and prevent them from disengaging. For example, when the movable part 221 is in the first position, the locking part 23 partially extends from the mounting hole 2213 into the insertion hole 2212 and into the clearance groove 2221 to prevent the movable part 221 from disengaging from the fixed part 222. In other words, in this embodiment, the locking member 23 is axially limited by the relief groove 2221. When the movable member 221 moves to the first position, the locking member 23 moves to one end of the relief groove 2221. The end side wall of the relief groove 2221 stops and limits the locking member 23, thereby preventing the movable member 221 from separating from the fixed member 222.

[0068] In addition, in order to avoid large friction between the first wall 2211 and the fixed wall 2223 and between the second wall 2214 and the fixed wall 2223, which would affect the movement of the double sleeve 2215 relative to the fixing member 222, for example, the first wall 2211 and the fixed wall 2223 and the second wall 2214 and the fixed wall 2223 are all clearance fits.

[0069] Additionally, it should be noted that the locking member 23 is located between the fixed wall 2223 and the first wall 2211, so that the side wall of the fixed wall 2223 facing the first wall 2211 limits the locking member 23, keeping it within the mounting hole 2213. When the movable member 221 is in the first position, the locking member 23 can partially extend from the mounting hole 2213 into the insertion hole 2212. When the movable member 221 is in the second position, the locking member 23 can partially extend from the mounting hole 2213 out of the first wall 2211 and into the relief groove 2221 to exit the insertion hole 2212. It is understood that when the movable member 221 is provided with the guide surface 2222 described above, the guide surface 2222 is located on the side of the fixed wall 2223 facing the first wall 2211.

[0070] Furthermore, to facilitate the repositioning of the movable part 221 from the second position to the first position, such as... Figure 2 As shown, in some embodiments, an elastic member 24 is provided between the movable member 221 and the fixed member 222. The elastic member 24 is used to provide an elastic force to the movable member 221 to move the movable member 221 from the second position to the first position.

[0071] In other words, in this embodiment, the elastic element 24 drives the movable element 221 from the second position to the first position. When it is necessary to install or remove the clamp assembly 1, the movable element 221 is pushed by an external force to move from the first position to the second position. During this process, the elastic element 24 is compressed and stores elastic potential energy. When the clamp assembly 1 is inserted or removed, the movable element 221 is released, and the movable element 221 can move from the second position to the first position under the action of the elastic element 24. This structure is simple and makes the movement of the movable element 221 convenient.

[0072] Considering the ease of setting the elastic element 24, such as Figure 2 As shown, in some embodiments, there is a second gap 2218 between the second wall 2214 and the fixed wall 2223, and an elastic member 24 is provided in the second gap 2218. The connection between the first wall 2211 and the second wall 2214 limits one end of the elastic member 24. The fixed member 222 is provided with a stepped surface 2224, which abuts against the other end of the elastic member 24. The elastic member 24 is used to provide an elastic force to the double sleeve 2215 to move from the second position to the first position.

[0073] In other words, in this embodiment, the elastic element 24 is disposed within the second gap 2218 between the second wall 2214 and the fixed wall 2223, preventing the elastic element 24 from being exposed and thus protecting it. For example, if the elastic element 24 is a spring, the spring is sleeved outside the fixed wall 2223 and located inside the second wall 2214. The fixed wall 2223 and the second wall 2214 can also guide the elastic element 24 and prevent it from tilting.

[0074] Furthermore, one end of the first wall 2211 and the second wall 2214 are connected by a connecting part, and the end of the elastic member 24 away from the step surface 2224 abuts against the connecting part.

[0075] In addition, to ensure the smooth movement of the moving part 221 between the first and second positions, such as Figure 2 As shown, in some embodiments, the fastener 222 further includes a limiting wall 2225 connected to the fixed wall 2223. The limiting wall 2225 is sleeved inside the fixed wall 2223 and has a third gap 2226 between it and the fixed wall 2223. The third gap 2226 is used for sliding engagement with the first wall 2211.

[0076] In other words, when the movable part 221 moves from the first position to the second position or from the second position to the first position, at least a portion of the first wall 2211 slides within the third gap 2226 between the limiting wall 2225 and the fixed wall 2223. This utilizes the limiting wall 2225 and the fixed wall 2223 to limit and guide the sliding of the first wall 2211, ensuring the reliability of the movement of the double-layer sleeve 2215. To avoid the friction between the first wall 2211 and the limiting wall 2225 and the fixed wall 2223 affecting the movement of the double-layer sleeve 2215 relative to the fixed part 222, exemplarily, the third gap 2226 between the limiting housing 222 and the fixed housing 221 is clearance-fitted with the first wall 2211. Furthermore, the ends of the limiting wall 2225 and the fixed wall 2223 away from the double sleeve 2215 are connected. That is, one end of the third gap 2226 between the limiting wall 2225 and the fixed wall 2223 is closed, so that the closed end of the third gap 2226 can be used to stop and limit the first wall 2211, thereby limiting the stroke of the first wall 2211 from the first position to the second position, and thus limiting the second position of the movable part 221.

[0077] It is understood that one of the movable part 221 and the fixed part 222 is provided with a first limiting part and the other is provided with a second limiting part. The first limiting part and the second limiting part cooperate to limit the first position of the movable part 221 and prevent the movable part 221 from separating from the fixed part 222 in a preset direction.

[0078] Furthermore, such as Figure 2 and Figure 3 As shown, in some embodiments, the movable member 221 further includes an operating member 2219, which is located outside the second wall 2214 and connected to the second wall 2214. The operating member 2219 is used to bear loads to drive the double-layer sleeve 2215 to move.

[0079] In other words, this embodiment applies external force to the operating member 2219 to move the double-layer sleeve 2215. To facilitate operation, the operating member 2219 can be designed according to ergonomic principles. For example, one end of the operating member 2219 has an arc-shaped portion at its connection with the side wall, so that applying external force to the operating member 2219 can cause it to move the double-layer sleeve 2215 from the first position to the second position. In addition, the outer periphery of the operating member 2219 can be provided with an arc-shaped groove to form a spaced-apart protrusion structure around the circumference of the operating member 2219, so as to facilitate the rotation of the operating member 2219.

[0080] In addition, to facilitate the connection between the operating component 2219 and the second wall 2214, such as Figure 2As shown, in some embodiments, the second wall 2214 is provided with a positioning hole, and the operating member 2219 is provided with a third positioning structure 25, which is connected to the positioning hole.

[0081] In other words, this embodiment utilizes the third positioning structure 25 in conjunction with the positioning hole to fix the operating member 2219 and the second wall 2214, ensuring that the relative positional relationship between the operating member 2219 and the second wall 2214 remains unchanged. For example, the positioning hole radially penetrates the wall thickness of the second wall 2214, the third positioning structure 25 is a headless bolt, and the operating member 2219 has a threaded hole for installing the headless bolt. By screwing the headless bolt into the threaded hole, one end of the headless bolt extends into the positioning hole, achieving the matching and limiting of the headless bolt and the positioning hole. It should be noted that this embodiment does not limit the specific number and distribution of the third positioning structure 25 and the positioning hole, as long as the relative position of the operating member 2219 and the second wall 2214 can be fixed. For example, there are three third positioning structures 25 and three positioning holes. The three third positioning structures 25 are arranged in a one-to-one correspondence with the three positioning holes. The three third positioning structures 25 are distributed at intervals along the circumference of the operating member 2219, and the three positioning holes are distributed at intervals along the circumference of the outer shell 2111.

[0082] Additionally, it is understandable that after the clamp assembly 1 is assembled with the movable part 221, in order to enable the clamp assembly 1 and the movable part 221 to rotate together, when the movable part 221 is in the first position, the clamp assembly 1 is inserted into the insertion hole 2212 and is circumferentially limited with the movable part 221, so that the movable part 221 can drive the clamp assembly 1 to rotate circumferentially, thereby allowing the clamp head 13 of the clamp assembly 1 to rotate, so as to facilitate the adjustment of the angle of the clamp head 13.

[0083] Additionally, it is understood that when the movable part 221 rotates circumferentially relative to the fixed part 222, the locking part 23 contacts the fixed part 222 (e.g., the locking part 23 contacts the inner wall of the fixed wall 2223). To reduce friction, in some embodiments, the locking part 23 is a spherical part, and the maximum inner diameter of the opening of the mounting hole 2213 facing the insertion hole 2212 is smaller than the maximum outer diameter of the spherical part. That is, by designing the locking part 23 as a spherical part in this embodiment, rolling friction is achieved between the locking part 23 and the fixed part 222, thereby reducing the frictional resistance during the circumferential rotation and axial movement of the movable part 221.

[0084] In some embodiments, the clearance groove 2221 is an annular groove.

[0085] In other words, the clearance groove 2221 is a circumferentially integral annular groove, which allows the locking member 23 to rotate circumferentially along the clearance groove 2221. This enables the movable member 221 and the fixed member 222 to rotate circumferentially, thereby allowing the movable member 221 to drive the clamping assembly 1 to rotate after the handle assembly 2 and the clamping assembly 1 are assembled. In addition, it avoids the need for a one-to-one correspondence between the locking member 23 and a single non-annular clearance groove 2221, which is beneficial for aligning the locking member 23 with the annular groove. It ensures that the locking member 23 can be aligned regardless of its position, thus reducing assembly difficulty. Furthermore, the clearance groove 2221 can be positioned and formed in one go, which also reduces processing difficulty.

[0086] Please refer to Figure 2 and Figure 6 In some embodiments, the movable member 221 is provided with a first positioning structure 2210 for slidingly engaging with a second positioning structure 121 provided on the clamp assembly 1 along their axial directions to define the circumferential positions of the clamp assembly 1 and the movable member 221.

[0087] In other words, when assembling the clamp assembly 1 and the handle assembly 2, the first positioning structure 2210 is aligned with the second positioning structure 121. The clamp assembly 1 and the movable part 221 are installed through the relative axial sliding of the first positioning structure 2210 and the second positioning structure 121. Simultaneously, the first positioning structure 2210 and the second positioning structure 121 provide circumferential limiting, restricting the circumferential position of the clamp assembly 1 and the movable part 221. This allows the movable part 221 to rotate circumferentially, and the motion is transmitted through the cooperation of the first positioning structure 2210 and the second positioning structure 122, causing the clamp assembly 1 to rotate as well. This solution is simple and easy to implement. Furthermore, when the movable part 221 is in the first position, the cooperation of the first positioning structure 2210 and the second positioning structure 122 achieves circumferential limiting of the clamp assembly 1 and the movable part 221. Simultaneously, the locking member 23, in conjunction with the limiting groove 121, provides axial limiting of the clamp assembly 1 and the movable part 221, thus achieving relative fixation of the clamp assembly 1 and the movable part 221. Furthermore, when inserting the clamp assembly 1 into the insertion hole 2212, the first positioning structure 2210 and the second positioning structure 122 are aligned. This allows the first positioning structure 2210 to enter the second positioning structure 122 from its opening and slide relative to it, ensuring smooth installation of the clamp assembly 1. Simultaneously, the cooperation between the first positioning structure 2210 and the second positioning structure 122 also guides the installation of the clamp assembly 1, ensuring the correct insertion direction and stable insertion. Additionally, aligning the first positioning structure 2210 and the second positioning structure 122 during clamp assembly also helps determine the orientation of the clamp head when initially assembling the clamp assembly 1.

[0088] Furthermore, in some embodiments, the first positioning structure 2210 extends radially through the movable member 221 and into the insertion hole 2212.

[0089] In other words, in this embodiment, the first positioning structure 2210 extends into the insertion hole 2212 to facilitate a sliding engagement between the first positioning structure 2210 and the second positioning structure 122. For example, the first positioning structure 2210 is a headless bolt, and the movable member 221 has a threaded hole for installing the headless bolt. By screwing the headless bolt into the threaded hole, one end of the headless bolt extends into the insertion hole 2212 to slide into the second positioning structure 122.

[0090] Furthermore, this embodiment does not limit the specific number and distribution of the first positioning structure 2210 and the second positioning structure 122. Please refer to [the relevant documentation]. Figure 7 For example, there are two first positioning structures 2210 and two second positioning structures 122, with each of the two first positioning structures 2210 and the two second positioning structures 122 corresponding one-to-one. Further, the two first positioning structures 2210 are positioned at 180° angles, and the two second positioning structures 122 are positioned at 180° angles. Of course, the number and distribution of the first positioning structures 2210 and the second positioning structures 122 can also be other, which will not be elaborated here.

[0091] In addition, to facilitate triggering the action of clamp assembly 1, such as Figure 1 As shown, in some embodiments, the handle body 21 is provided with a handle movable part 211, which is rotatably connected to the handle body 21. A stationary spring piece 212 and a movable spring piece 213 are connected between the handle movable part 211 and the handle body 21. One end of the stationary spring piece 212 is connected to the handle body 21, and one end of the movable spring piece 213 is connected to the handle movable part 211. The other ends of the stationary spring piece 212 and the other end of the movable spring piece 213 are hinged. In addition, the handle movable part 211 is linked to the drive rod 14 of the clamp assembly 1 of the clamping pliers. The drive rod 14 passes through the fixing member 222 and the movable member 221 axially. When the handle movable part 211 is activated, the drive rod 14 moves axially to drive the clamp assembly 1 to work.

[0092] In other words, in this embodiment, by moving the handle movable part 211, the handle movable part 211 drives the drive rod 14 to move axially, so that the drive rod 14 pushes the preset component of the clamp assembly 1 to move, thereby driving the clamp assembly 1 to work.

[0093] For example, the movable part 211 of the handle is connected to the handle body 21 via a first fastener 214, and the movable part 211 of the handle can rotate around the first fastener 214. The movable part 211 of the handle is provided with a driving part, which is connected to the driving rod 14. That is, when the movable part 211 of the handle rotates, it drives the driving part to rotate, thereby causing the driving part to drive the driving rod 14 to move axially. The driving rod 14 is provided with a slot, and the driving part is located in the slot. The driving part can be a cam structure, so that when the movable part 211 of the handle drives the driving part to rotate, different parts of the cam structure push the driving rod 14 to move axially. This structure is simple and easy to connect.

[0094] In addition, the stationary spring 212 and the handle body 21, as well as the moving spring 213 and the handle movable part 211, can be connected by the second fastener 215 respectively.

[0095] In addition to the handle assembly 2 of the clamping pliers described above, this embodiment of the present invention also provides a clamping pliers assembly 1, which is used in conjunction with the handle assembly 2 of the clamping pliers disclosed in the above embodiment. The clamping pliers assembly 1 includes a clamping head 13, an inner core assembly 11, and an outer sheath 12. The clamping head 13 is used to clamp an object. The first end of the inner core assembly 11 is connected to the clamping head 13, and the second end of the inner core assembly 11 is connected to and driven by the handle assembly 2 of the clamping pliers to move, thereby driving the clamping head 13 to move. The outer sheath 12 is sleeved on the outer periphery of the inner core assembly 11 and is circumferentially fixed to the inner core assembly 11. The first end of the outer sheath 12 faces the clamping head 13, and the second end of the outer sheath 12 is provided with a limiting groove 121 for detachable connection with the handle assembly 2 of the clamping pliers.

[0096] It should be noted that the limiting groove 121 is used to cooperate with the locking member 23 to realize the detachable connection between the clamp assembly 1 and the handle assembly 2 of the clamping pliers. That is, when the clamp assembly 1 of the clamping pliers is inserted into the insertion hole 2212 and the movable member 221 is in the first position, the locking member 23 extends partially from the mounting hole 2213 into the insertion hole 2212 and extends into the limiting groove 121. Thus, by utilizing the cooperation between the locking member 23 and the limiting groove 121, the axial relative position of the clamp assembly 1 and the movable member 221 is at least limited, so that the clamp assembly 1 cannot be pulled out from the insertion hole 2212, thereby realizing the locking of the clamp assembly 1 and the movable member 221.

[0097] It is understood that the clamp assembly 1 is used in conjunction with the handle assembly 2 of the clamp described above. When assembling or disassembling the clamp assembly 1, the movable part 221 of the handle assembly 2 is first moved from the first position to the second position. Then, the clamp assembly 1 is inserted or pulled out, and the movable part 221 of the handle assembly 2 is moved from the second position to the first position. That is, when assembling or disassembling the clamp assembly 1, it is only necessary to switch the movable part 221 of the handle assembly 2 between the first position and the second position, which can realize the quick assembly or disassembly of the clamp assembly 1.

[0098] Furthermore, in some embodiments, the limiting groove 121 is an annular groove.

[0099] That is, the limiting groove 121 is an integral annular groove structure. This type of limiting groove 121 can ensure that the locking member 23 can be aligned with the locking member 23 no matter what position the locking member 23 is in, which is convenient for processing and assembly. In addition, it is also conducive to realizing the cooperation between the locking member 23 and the limiting groove 121.

[0100] Additionally, it should be noted that this embodiment does not limit the specific structure of the pliers head 13, the inner core assembly 11, and the outer sheath 12; relevant technologies can be referenced, and further details will not be provided here.

[0101] In some embodiments, the outer sheath 12 is detachably connected to the inner core assembly 11.

[0102] In other words, the clamp assembly 1 in this embodiment is a detachable assembly, with its inner core assembly 11 and outer sheath 12 being detachable, facilitating separate cleaning and disinfection of the inner core assembly 11 and the outer sheath 12. It should be noted that this embodiment does not limit the specific detachable method between the inner core assembly 11 and the outer sheath 12. For example, the inner core assembly 11 and the outer sheath 12 are threaded together to facilitate disassembly and assembly.

[0103] In addition, in some embodiments, the second end of the outer sheath 12 is provided with a second positioning structure 122 for slidingly engaging with the first positioning structure 2210 provided on the movable member 221 along the axial direction of both, so as to define the circumferential position of the clamp assembly 1 and the movable member 221.

[0104] In other words, this embodiment provides a second positioning structure 122 at the second end of the outer sheath 12, which is used to slide and engage with the first positioning structure 2210 along the axial direction and to limit the movement along the circumference. The second positioning structure 122 can be a groove with a certain length along the axial direction of the outer sheath 12 to meet the relative sliding stroke of the clamp assembly 1 and the handle assembly 2 during the assembly process.

[0105] In addition to the handle assembly 2 and clamp assembly 1 of the clamping pliers described above, this utility model embodiment also provides a clamping pliers, which includes the handle assembly 2 of the clamping pliers disclosed in any of the above embodiments and the clamp assembly 1 of the clamping pliers disclosed in any of the above embodiments.

[0106] The beneficial effects of the clamping pliers, including at least the handle assembly 2 and the clamping assembly 1, will not be elaborated further here.

[0107] It should also be noted that, in this specification, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0108] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other.

[0109] The handle assembly, clamping assembly, and clamping pliers of the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A handle assembly (2) for a clamping pliers, for detachably connecting to a clamping assembly (1) of the clamping pliers, characterized in that, include: handle body (21); The operating component (22) includes a movable part (221) and a fixed part (222) that are movably connected. One end of the fixed part (222) is fixedly installed on the handle body (21), and the other end is sleeved on the outside of the first wall (2211) of the movable part (221). Along the common axial direction of the two, the movable part (221) can reciprocate between at least a first position and a second position relative to the fixed part (222). The movable part (221) is provided with a plug-in hole (2212) along its axial direction for detachably connecting with the clamp assembly (1), and the first wall (2211) surrounds the plug-in hole (2212); a mounting hole (2213) communicating with the plug-in hole (2212) is provided through the first wall (2211), and a locking member (23) is provided in the mounting hole (2213). The locking member (23) is movable relative to the mounting hole (2213) and can extend partially from the mounting hole (2213) into the plug-in hole (2212) and can extend partially from the mounting hole (2213) out of the first wall (2211); The fastener (222) is provided with a relief groove (2221), which is opened toward the first wall (2211) and can accommodate at least a portion of the locking member (23); When the movable part (221) is in the first position, the fixed part (222) restricts the range of movement of the locking part (23) so that the locking part (23) extends partially from the mounting hole (2213) into the insertion hole (2212); when the movable part (221) is in the second position, the clamp assembly (1) can be inserted into or pulled out of the insertion hole (2212). When the clamp assembly (1) is inserted or pulled out, it pushes the locking part (23) so that the locking part (23) extends partially from the mounting hole (2213) out of the first wall (2211), into the relief groove (2221), and out of the insertion hole (2212).

2. The handle assembly (2) of the clamping pliers according to claim 1, characterized in that, The movable component (221) includes: The double-layer sleeve (2215) includes an inner first wall (2211) and an outer second wall (2214), with a first gap (2216) between them. The two are connected to each other at one end and have a first opening (2217) communicating with the first gap (2216) at the other end. The fastener (222) includes a fixed wall (2223), which is inserted into the first gap (2216) through the first opening (2217), and the clearance groove (2221) is provided on the side of the fixed wall (2223) facing the first wall (2211).

3. The handle assembly (2) of the clamping pliers according to claim 2, characterized in that, There is a second gap (2218) between the second wall (2214) and the fixed wall (2223), and an elastic element (24) is provided in the second gap (2218). The connection between the first wall (2211) and the second wall (2214) limits one end of the elastic element (24). The fixed element (222) has a stepped surface (2224) that abuts against the other end of the elastic element (24). The elastic element (24) is used to provide an elastic force to the double sleeve (2215) to move from the second position to the first position.

4. The handle assembly (2) of the clamping pliers according to claim 2, characterized in that, The fastener (222) further includes a limiting wall (2225) connected to the fixed wall (2223). The limiting wall (2225) is sleeved inside the fixed wall (2223) and has a third gap (2226) with the fixed wall (2223). The third gap (2226) is used for sliding cooperation with the first wall (2211).

5. The handle assembly (2) of the clamping pliers according to claim 2, characterized in that, The movable component (221) also includes: An operating element (2219) is located outside the second wall (2214) and connected to the second wall (2214) for bearing loads to drive the double-layer sleeve (2215) to move.

6. The handle assembly (2) of the clamping pliers according to claim 1, characterized in that, The clearance groove (2221) is provided with a guide surface (2222), which gradually moves radially away from the insertion hole (2212) along the insertion direction of the clamp assembly (1). The guide surface (2222) is used to guide and limit the locking member (23), so that when the movable member (221) moves from the second position to the first position, it applies a squeezing force to the locking member (23) so that the locking member (23) extends into the insertion hole (2212).

7. The handle assembly (2) of the clamping pliers according to claim 1, characterized in that, When the movable part (221) is in the first position, the locking part (23) extends partially from the mounting hole (2213) into the insertion hole (2212) and into the relief groove (2221) to prevent the movable part (221) from disengaging from the fixing part (222).

8. The handle assembly (2) of the clamping pliers according to claim 1, characterized in that, The clearance groove (2221) is an annular groove.

9. The handle assembly (2) of the clamping pliers according to claim 8, characterized in that, The movable part (221) is provided with a first positioning structure (2210) for slidingly engaging with the second positioning structure (122) provided on the clamp assembly (1) along the axial direction of both, so as to limit the circumferential position of the clamp assembly (1) and the movable part (221).

10. The handle assembly (2) of the clamping pliers according to any one of claims 1-9, characterized in that, The locking member (23) is a spherical member, and the maximum inner diameter of the opening of the mounting hole (2213) facing the insertion hole (2212) is smaller than the maximum outer diameter of the spherical member.

11. A clamping assembly (1) for applying clamps, characterized in that, include: The pliers (13) are used to grip objects; The inner core assembly (11) has a first end connected to the pliers head (13) and a second end connected to the handle assembly (2) of the clamping pliers according to any one of claims 1-10 and driven by the handle assembly (2) to move the pliers head (13). The outer sheath (12) is fitted around the outer periphery of the inner core assembly (11) and is circumferentially fixed to the inner core assembly (11). The first end of the outer sheath (12) faces the pliers head (13), and the second end is provided with a limiting groove (121) for detachable connection with the handle assembly (2) of the clamping pliers.

12. The clamping assembly (1) of the clamping forceps according to claim 11, characterized in that, The second end of the outer sheath (12) is provided with a second positioning structure (122) for slidingly engaging with the first positioning structure (2210) provided on the movable part (221) of the handle assembly (2) of the clamp along the axial direction of both, so as to define the circumferential position of the clamp assembly (1) and the movable part (221).

13. A clamping pliers, characterized in that, include: The handle assembly (2) of the clamping pliers as claimed in any one of claims 1-10 and the clamping assembly (1) of the clamping pliers as claimed in claim 11 or 12.

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