Clamping member and clamping device

Abstract

The utility model provides a kind of clamping component and clamping device, wherein, clamping component includes: assembly part, is assembled on movable part;Clamping part has first clamping surface in preset trajectory towards support part, support part has second clamping surface with arc, the second plane where preset trajectory is perpendicular to first plane and the projection of second clamping surface on second plane is relatively inclined to the direction of far away from clamping part;Wherein, first clamping surface includes abutting pressure part and opposite abutting pressure part protrudes the step portion towards second clamping surface, in clamping cooperation state, the projection of step portion on second plane is located in the inclined direction of second clamping face.The utility model provides clamping component and clamping device, can realize the automatic bending of eyelash in shaping process, improve eyelash shaping efficiency, reduce make-up time and step.

Description

Technical Field

[0001] This utility model relates to the field of cosmetics technology, and in particular to a clamping component and clamping device. Background Technology

[0002] An eyelash curler is a makeup tool that can bend and curl eyelashes, making them look longer and more upturned. It is a popular beauty product among women.

[0003] However, the eyelash curlers currently on the market have the following defects in the process of clamping and shaping eyelashes: on the one hand, when clamping eyelashes, the clamping part deforms under pressure, causing the eyelashes to become angular, straight, and not curled, and even damaging the eyelashes; on the other hand, users need to gently adjust the angle and displacement between the clamping surface and the eyelashes multiple times, adjusting and clamping at the same time, which is very cumbersome, time-consuming, and the curling effect is very poor. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a clamping component and clamping device that can make eyelashes automatically bend and curl upward during the eyelash setting process, improve the eyelash setting efficiency, and reduce the time and steps of makeup.

[0005] This utility model provides a clamping member in a clamping device, the clamping device comprising a first clamp and a second clamp hinged together, the first clamp having a support portion and the second clamp having a movable portion, wherein the movable portion moves toward the support portion along a preset trajectory during the clamping action of the first clamp and the second clamp, the clamping member comprising:

[0006] The assembly part is assembled onto the movable part;

[0007] The clamping portion has a first clamping surface facing the support portion on the preset trajectory, and the support portion has an arc-shaped second clamping surface disposed opposite to the first clamping surface. The first plane on which the second clamping surface is located intersects the preset trajectory, and the second plane on which the preset trajectory is located is perpendicular to the first plane, and the projection of the second clamping surface on the second plane is inclined in a direction away from the clamping portion.

[0008] The first clamping surface includes a pressing portion and a stepped portion protruding towards the second clamping surface relative to the pressing portion. The outer contours of both the pressing portion and the stepped portion are arc-shaped surfaces adapted to the second clamping surface.

[0009] The pressing part can clamp and cooperate with the second clamping surface under the preset trajectory of the movable part. In the clamping and cooperating state, the projection of the stepped part on the second plane is located in the inclined direction of the second clamping surface.

[0010] According to the clamping component provided by this utility model, eyelashes are curled and shaped during makeup application. The arc-shaped second clamping surface and the first clamping surface are adapted to the shape of the eye, and can simultaneously clamp the eyelashes arranged along the direction of the eyeball. In this structure, the first clamping surface is divided into a pressing part and a stepped part. The pressing part presses down on the root of the eyelashes when combined with the second clamping surface, while the stepped part bends the eyelashes along the upper position of the eyelid during the pressing part's engagement. This allows the eyelashes to automatically curl and shaped during the shaping process, resulting in a good shaping effect. There is no need to pull the eyelashes or eyelids with additional actions to make the eyelashes curl, which significantly improves the makeup effect.

[0011] In a preferred embodiment of this invention, the joint between the stepped portion and the pressing portion has a transition arc-shaped surface.

[0012] In a preferred embodiment of this utility model, the pressing part includes a pressing surface and a joint portion located on the opposite side of the stepped part on the pressing surface. The joint portion protrudes toward the second clamping surface and the distance between the joint portion and the stepped part is not less than the radial width of the second clamping surface.

[0013] In a second aspect, this utility model provides a clamping device, comprising:

[0014] The first clamp has a support portion;

[0015] The second clamp has a movable part, which moves toward the support part along a preset trajectory when the first clamp and the second clamp are engaged.

[0016] Clamping components, including:

[0017] The assembly part is assembled onto the movable part;

[0018] The clamping portion has a first clamping surface facing the support portion on the preset trajectory, and the support portion has an arc-shaped second clamping surface disposed opposite to the first clamping surface. The first plane on which the second clamping surface is located intersects the preset trajectory, and the second plane on which the preset trajectory is located is perpendicular to the first plane, and the projection of the second clamping surface on the second plane is inclined in a direction away from the clamping portion.

[0019] The first clamping surface includes a pressing portion and a stepped portion protruding towards the second clamping surface relative to the pressing portion. The outer contours of both the pressing portion and the stepped portion are arc-shaped surfaces adapted to the second clamping surface.

[0020] The pressing part can clamp and cooperate with the second clamping surface under the preset trajectory of the movable part. In the clamping and cooperating state, the projection of the stepped part on the second plane is located in the inclined direction of the second clamping surface.

[0021] According to the clamping device provided by this utility model, the clamping component of the first aspect embodiment mentioned above is adopted. After the clamping component is assembled into the clamping device, the first clamp and the second clamp on the clamping device cooperate with the pressing part and the second clamping surface during the clamping process, so that the eyelashes are quickly clamped and shaped, while the stepped surface bends and curls the eyelashes, so that the eyelashes have an upward bending process, without the need to pull the eyelashes or eyelids through additional actions to make the eyelashes curl, which significantly improves the makeup effect.

[0022] In a preferred embodiment of this utility model, the first clamp includes a movable guide rail, the movable part is movably disposed on the movable guide rail and moves along the preset trajectory, the movable part has a fixed locking position facing the support part on the preset trajectory, and the assembly part is detachably connected to the fixed locking position.

[0023] In a preferred embodiment of this utility model, the clamping member further includes a body, the assembly portion and the clamping portion are respectively disposed on both sides of the body, the assembly portion forms a mating groove relative to the upper edge and / or lower edge of the body, and the movable portion has an upper mating edge and a lower mating edge for forming the fixed locking position.

[0024] When the assembly part is snapped into the fixed slot, at least one of the upper mating edge and the lower mating edge engages with the mating groove, and the at least one smoothly transitions with the upper edge and / or lower edge of the body in the direction of the preset trajectory.

[0025] In a preferred embodiment of this utility model, the assembly part includes an arc-shaped groove with the same shape as the arc-shaped surface of the second clamping surface, and the movable part has an arc-shaped protruding edge that cooperates with the arc-shaped groove. The concave direction of the arc-shaped groove is the same as the direction of the second clamping surface relative to the first clamping surface.

[0026] In a preferred embodiment of this utility model, when the pressing part and the second clamping surface are clamped together, the projection of the arc-shaped groove on the second plane is located in the inclined direction of the second clamping surface and is located further away from the second clamping surface than the stepped part.

[0027] In a preferred embodiment of this utility model, the movable guide rail includes two cylindrical tracks that extend along the preset trajectory and are arranged opposite to each other, and the two ends of the movable part have guide holes fitted on the cylindrical tracks.

[0028] In a preferred embodiment of this utility model, the preset trajectory is a straight line trajectory along the first direction, the support portion includes a support plate extending a preset width from the second clamping surface along the first direction, and the stepped portion abuts against the surface of the support plate in the clamping state of the clamping device.

[0029] In a preferred embodiment of the present invention, the first clamp includes a first handle portion, the second clamp includes a second handle portion, and the plane containing the clamping direction of the first handle portion and the second handle portion around the hinge portion coincides with or is parallel to the second plane.

[0030] Other features and advantages of the present invention will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the technical solution of the present invention. The objects and other advantages of the present invention may be realized and obtained by means of the structures and / or processes particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the clamping device provided in an embodiment of the present utility model;

[0032] Figure 2 A schematic diagram of the clamping device provided in this embodiment of the present invention when viewed in a direction perpendicular to the second plane;

[0033] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle;

[0034] Figure 4 A schematic diagram of the clamping device provided in this embodiment of the present invention when viewed in the opposite direction of Y;

[0035] Figure 5 A schematic diagram of the clamping device provided in the embodiment of this utility model when viewed in the Z direction;

[0036] Figure 6 A cross-sectional view of the clamping device provided in an embodiment of the present invention in a direction perpendicular to the second plane;

[0037] Figure 7 for Figure 6 A magnified view of a portion of point B in the middle;

[0038] Figure 8 A schematic diagram of the structure of the clamping component when it is assembled on the movable part according to an embodiment of the present utility model;

[0039] Figure 9A schematic diagram of the clamping member provided in an embodiment of this utility model from a first perspective;

[0040] Figure 10 A schematic diagram of the clamping member provided in an embodiment of this utility model from a second perspective.

[0041] Explanation of icon numbers:

[0042] 100 First clamping component, 110 First handle, 120 Support part, 121 Second clamping surface, 130 Movable guide rail;

[0043] 200 Second clamp, 210 Second handle, 220 Movable part, 221 Guide hole, 222 Fixed position, 223 Upper mating edge, 224 Lower mating edge, 230 Connecting part, 240 Connecting rod;

[0044] 300 Clamping component, 310 Assembly part, 311 Arc-shaped groove, 320 Clamping part, 321 First clamping surface, 322 Pressing part, 322a Pressing surface, 322b Joint part, 323 Stepped part, 324 Transition arc-shaped surface, 330 Body, 340 Fitting groove. Detailed Implementation

[0045] The following detailed description of the embodiments of this utility model, in conjunction with the accompanying drawings, will provide a thorough understanding of how this utility model uses technical means to solve technical problems and achieve technical effects, enabling its implementation. It should be noted that these specific descriptions are merely intended to facilitate a clearer understanding of this utility model by those skilled in the art, and are not intended to limit its scope. For example, the use of "first" and "second" in the embodiments of this utility model is not intended to limit its application, but merely to indicate the serial numbers of multiple identical or similar devices or mechanisms. Those skilled in the art can readjust these serial numbers for ease of description or during the organization of technical solutions. Furthermore, alternative solutions are described for some mechanisms in different embodiments, and these alternatives can be applied to other identical or similar devices or mechanisms. As long as there is no conflict, the various embodiments and features in each embodiment of this utility model can be combined with each other, and the resulting technical solutions are all within the protection scope of this utility model.

[0046] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] See Figures 1 to 10This utility model provides a clamping device, including a first clamp 100 and a second clamp 200 hinged together. The first clamp 100 includes a first handle 110 and a first clamping end, with the hinge point with the second clamp 200 as the dividing point. The first clamping end has a support portion 120. The second clamp 200 includes a second handle 210 and a second clamping end, with the hinge point with the first clamp 100 as the dividing point. The second clamping end is provided with a movable portion 220. The first handle 110 and the second handle 210 can move closer to or further away from each other around the hinge point under external force, such as hand force. Under the clamping action of the first handle 110 and the second handle 210, the movable portion 220 moves towards the support portion 120 along a preset trajectory. During the action of the two handles moving closer to or further away from each other, the movable portion 220 moves towards the support portion 120 and forms a clamping and shaping action for eyelashes. In this embodiment, see reference. Figure 2 When the first handle 110 moves toward the second handle 210 along direction X, the movable part 220 moves toward the support part 120 along direction Y.

[0048] This utility model also provides a clamping member 300 detachably assembled on the movable part 220, including an assembly part 310 and a clamping part 320. The movable part 220 is provided with an assembly structure, and the assembly part 310 is combined with the assembly structure to fix the movable part 220. The clamping part 320 has a first clamping surface 321 facing the support part 120 on a preset trajectory. The second support part 120 has an arc-shaped second clamping surface 121 opposite to the first clamping surface 321. That is, with the second clamping surface 121 having an arc structure, as in Figure 2 In the embodiment shown, the second clamping surface 121 is located in the direction Y of the first clamping surface 321, so that when the first clamping surface 321 moves toward the support portion 120 along a preset trajectory, the first clamping surface 321 can clamp and cooperate with the second clamping surface 121 to form a clamping action.

[0049] Specifically, the first plane containing the second clamping surface 121 intersects with the preset trajectory, wherein the first plane is as follows: Figure 3 The plane P in the above embodiment represents a trajectory along the Y direction, that is, it intersects with plane P after passing through plane P. The second plane containing the preset trajectory is in... Figure 4The second clamping surface 121 is shown as plane U. This second plane is perpendicular to the first plane. When viewed from a direction perpendicular to the second plane, the second clamping surface 121 appears as an inclined line segment projected onto the second clamping surface 121. Thus, the projection of the second clamping surface 121 onto the second plane is relatively inclined away from the clamping portion. For example, when the preset trajectory is an arc trajectory, the second plane containing the preset trajectory is a defined plane, namely plane U, which passes through the middle of the second clamping surface 121 and is perpendicular to the first plane. When the preset trajectory is a straight line trajectory, the second plane perpendicular to the first plane is also only plane U. Therefore, the first and second planes are defined in this structure. In this structure, the projection of the second clamping surface 121 onto the second plane, namely plane U, is a straight line segment, which is relatively inclined away from the clamping portion 320. It should be noted that if the straight line trajectory is perpendicular to the second clamping surface 121, there will be no second plane that causes the second clamping surface 121 to be relatively inclined onto the second plane. Therefore, this second plane is a defined limiting plane.

[0050] In the above structure, if the support portion 120 is viewed along the preset trajectory in direction Y, for example... Figure 3 The second clamping surface 121 has a first arc-shaped structure in this direction, and when the support portion 120 is viewed along the direction Z perpendicular to the Y direction and on the second plane U, as shown... Figure 5 The second clamping surface 121 has a second arc-shaped structure in this direction. The arc-shaped structures in both directions are adapted to the arc-shaped surface of the eye, because during the eyelash shaping process, the support portion 120 is angled closer to the eyeball. Figure 1 The first arc-shaped structure is adapted to the position of the eyeball. During the process of shaping the eyelashes with the first clamping surface 321 and the second clamping surface 121, the support part 120 avoids the position of the eyeball to prevent the first clamping surface 321 and the second clamping surface 121 from touching the eye or exerting excessive pressure on the eyelid during the clamping of the eyelashes.

[0051] Furthermore, the first clamping surface 321 includes a pressing portion 322 and a stepped portion 323 protruding from the pressing portion 322 toward the second clamping surface 121. The protruding direction of the stepped portion 323 is along a preset trajectory toward the support portion 120, such as in... Figure 6 and Figure 7In the illustrated embodiment, the part protrudes along the Y direction, and the outer contours of both the pressing part 322 and the stepped part 323 are arc-shaped surfaces adapted to the second clamping surface 121. The pressing part 322, under the preset trajectory of the movable part 220, can clamp and engage with the second clamping surface 121, fitting snugly against it. At this time, the pressing part 322 is also below the first plane, and the arc shape of the stepped part 323 is also on a plane parallel to the first plane. In the clamping engagement state of the pressing part 322 and the second clamping surface 121, the projection of the stepped part 323 onto the second plane is located in the inclined direction of the second clamping surface 121, for example... Figure 6 When the clamping action of the pressing part 322 and the second clamping surface 121 is used to press down the root of the eyelashes, the step part 323 and the upper part of the second clamping surface 121 will form a curved slit. This curved slit will curl the eyelashes upward, thereby automatically flipping the eyelashes upward during the shaping process. There is no need to pull the eyelashes or eyelids with additional actions to curl the eyelashes, which significantly improves the makeup effect.

[0052] Continue reading Figure 8 The joint between the stepped portion 323 and the pressing portion 322 has a transition arc surface 324, which can prevent the eyelashes from being bent at right angles when they are being styled, thus protecting the eyelashes.

[0053] Furthermore, the pressing part 322 includes a pressing surface 322a and a joint part 322b located on the opposite side of the stepped part 323 on the pressing surface 322a. The joint part 322b protrudes in the direction of the second clamping surface 121, i.e., direction Y, and the distance between it and the stepped part 323 is not less than the radial width of the second clamping surface 121. Therefore, in the clamping engagement state of the pressing surface 322a and the second clamping surface 121, the pressing part 322 can fit tightly with the second clamping surface 121. The joint part 322b and the stepped part 323 are the upper and lower sides of the pressing surface 322a, respectively, which can better clamp the eyelashes.

[0054] In an expandable manner, the pressing surface 322a is an inclined arc-shaped surface that is inclined relative to the stepped portion 323 toward the support portion 120. Therefore, the included angle between the pressing surface 322a and the stepped portion 323 is less than 90 degrees. In this embodiment, the lower joint portion 322b is the bottom edge of the pressing surface 322a, so that the pressing surface 322a can better adapt to the root shape of the eyelashes in the tilted operation posture, and there will be no local excessive compression, so that the force is even during the shaping process.

[0055] In one embodiment, the first clamp 100 includes a movable guide rail 130, and a movable part 220 is movably disposed on the movable guide rail 130 and moves along a preset trajectory. The movable part 220 has a fixed locking position 222 facing the support part 120 on the preset trajectory. The assembly part 310 is detachably connected to the fixed locking position 222. Thus, the clamping member 300 is assembled on the movable part 220 on the side facing the support part 120. The movable part 220 can provide sufficient support force to counteract the relative force generated by the clamping force when the pressing part 322 and the second clamping surface 121 are clamped together, thereby improving the support effect on the clamping member 300 and making the whole structure more reliable and stable.

[0056] In the specific structure of this embodiment, see [reference]. Figure 1 The movable guide rail 130 includes two cylindrical tracks that extend along a preset trajectory and are arranged opposite each other. The two ends of the movable part 220 have guide holes 221 fitted on the cylindrical tracks. The movable guide rail 130 guides the movable part 220 from both sides, so that the movement trajectory of the movable part 220 is fixed and reliable, avoiding the problem that the clamping part is prone to misalignment when some eyelash curlers are clamped in the prior art.

[0057] Further reading Figures 6 to 9 The clamping member 300 also includes a body 330, an assembly part 310 and a clamping part 320 respectively disposed on both sides of the body 330. The assembly part 310 forms a mating groove 340 relative to the upper edge and / or lower edge of the body 330. The movable part 220 has an upper mating edge 223 and a lower mating edge 224 for forming a fixed locking position 222. After the assembly part 310 is snapped into the fixed locking position 222, it is clamped by the upper mating edge 223 and the lower mating edge 224. At this time, the mating groove 340 acts as a limiting structure for the upper mating edge 223 and / or the lower mating edge 224, which can provide a limiting force to prevent the conversion part from snapping into the fixed locking position 222 after it is assembled in place. At the same time, it can also increase the contact area between the assembly part and the movable part 220 and enhance the assembly firmness.

[0058] When the assembly part 310 is inserted into the fixed slot 222, at least one of the upper mating edge 223 and the lower mating edge 224 is engaged with the mating groove 340. The upper mating edge 223 and / or the lower mating edge 224 smoothly transitions with the upper edge and / or the lower edge of the body 330 in the direction of the preset trajectory. That is, after the assembly part 310 is assembled onto the movable part 220, the upper mating edge 223 and / or the lower mating edge 224 extend in the same direction as the upper edge and / or the lower edge of the body 330. This smooth transition structure can avoid the formation of sharp corners on the movable part 220, which would affect the human body during shaping. At the same time, it can also be observed whether the assembly part 310 is properly assembled on the movable part 220.

[0059] In the above embodiments, with Figure 6 To further explain, the assembly part 310 includes a mating groove 340 located on the upper side of the body 330. After the assembly part 310 is snapped into the fixing slot 222, the upper mating edge 223 engages with the mating groove 340 and smoothly transitions with the mating groove 340 in the Y direction.

[0060] In another embodiment, see Figure 6 and Figure 10 The assembly part 310 includes an arc-shaped groove 311 with the same shape as the arc-shaped surface of the second clamping surface 121, while the movable part 220 has an arc-shaped protruding edge that mates with the arc-shaped groove 311. The recessed direction of the arc-shaped groove 311 is the same as the direction of the second clamping surface 121 relative to the first clamping surface 321. Figure 2 The direction Y in the middle makes the supporting force provided by the arc-shaped groove 311 during the process of being fixed by the arc-shaped protrusion correspond to the pressing surface 322a of the pressing part 322, which can provide a better supporting effect and ensure the stability of the force.

[0061] Furthermore, the curved convex edge is Figure 8 In the embodiment shown, the upper mating edge 223, in the clamping engagement state of the pressing part 322 and the second clamping surface 121, has the projection of the arc-shaped groove 311 on the second plane located in the inclined direction of the second clamping surface 121 and at a position farther from the second clamping surface 121 than the stepped part 323, with the inclined direction as follows: Figure 1 In the direction W, the arc-shaped protrusion extends above the stepped portion 323 when it is in the arc-shaped groove 311. The arc-shaped protrusion can provide a support surface for the stepped portion 323 in the inclined direction, forming a binding structure. This can prevent the stepped portion 323 from being excessively deformed during the clamping process and provide sufficient support so that the stepped portion 323 can curl the eyelashes upward.

[0062] Furthermore, in this embodiment of the invention, the plane containing the clamping direction of the first handle 110 and the second handle 210 around the hinge point coincides with or is parallel to the second plane, for example, in Figure 1 In this embodiment, the first handle 110 and the second handle 210 rotate along an axis perpendicular to the second plane. In conjunction with the direction Y, the second handle 210 is connected to the movable part 220 via a linkage. As the two handles approach each other, the second handle 210 pushes the movable part 220 towards the support part 120 along a preset trajectory, i.e., direction Y, via the linkage. This achieves a switch from rotational motion to linear motion, adapting to the eyelash shaping action and facilitating manual operation. (See also...) Figure 1As can be seen, the second handle 210 has a connecting part 230, which has a rotating hole. The movable part 220 is rotatably mounted on the rotating hole via the connecting rod 240. Thus, the second handle 210 switches the rotational motion to the linear motion of the movable part 220 on the movable guide rail 130 on the first clamp 100.

[0063] In this embodiment, see Figure 1 and Figure 2 The preset trajectory is a straight line trajectory along a first direction, where the first direction is... Figure 2 and Figure 3 In the direction Y, the support part 120 includes a support plate extending a predetermined width from the second clamping surface 121 along the first direction, which can improve the clamping support force of the support plate on the second clamping surface. The stepped part 323 abuts against the surface of the support plate in the clamping state of the clamping device, that is, during the clamping process of the first handle 110 and the second handle 210, so that it manifests as an edge-wrapping structure on the support surface of the support part 120, and bends the eyelashes together with the support surface.

[0064] Finally, it should be noted that the above description is merely the preferred embodiment of this utility model and is not intended to limit the utility model in any way. Any person skilled in the art can make many possible changes and simple substitutions to the technical solution of this utility model using the disclosed methods and technical content without departing from the scope of the technical solution of this utility model, and these all fall within the protection scope of the technical solution of this utility model.

Claims

1. A clamping member applied to a clamping device, the clamping device comprising a first jaw and a second jaw hingedly connected to each other, the first jaw having a support portion thereon, the second jaw having a movable portion thereon, the movable portion moving along a preset trajectory toward the support portion under the clamping action of the first jaw and the second jaw, characterized in that, The clamping component includes: The assembly part is assembled onto the movable part; The clamping portion has a first clamping surface facing the support portion on the preset trajectory, and the support portion has an arc-shaped second clamping surface disposed opposite to the first clamping surface. The first plane on which the second clamping surface is located intersects the preset trajectory, and the second plane on which the preset trajectory is located is perpendicular to the first plane, and the projection of the second clamping surface on the second plane is inclined in a direction away from the clamping portion. The first clamping surface includes a pressing portion and a stepped portion protruding towards the second clamping surface relative to the pressing portion. The outer contours of both the pressing portion and the stepped portion are arc-shaped surfaces adapted to the second clamping surface. The pressing part can clamp and cooperate with the second clamping surface under the preset trajectory of the movable part. In the clamping and cooperating state, the projection of the stepped part on the second plane is located in the inclined direction of the second clamping surface.

2. The clamping member according to claim 1, characterized in that, The joint between the stepped portion and the pressing portion has a transition arc-shaped surface.

3. The clamping member of claim 1, wherein The pressing part includes a pressing surface and a joint portion located on the opposite side of the stepped part on the pressing surface. The joint portion protrudes toward the second clamping surface and the distance between the joint portion and the stepped part is not less than the radial width of the second clamping surface.

4. A clamping device, characterized in that include: The first clamp has a support portion; The second clamp has a movable part, which moves toward the support part along a preset trajectory when the first clamp and the second clamp are engaged. Clamping components, including: The assembly part is assembled onto the movable part; The clamping portion has a first clamping surface facing the support portion on the preset trajectory, and the support portion has an arc-shaped second clamping surface disposed opposite to the first clamping surface. The first plane on which the second clamping surface is located intersects the preset trajectory, and the second plane on which the preset trajectory is located is perpendicular to the first plane, and the projection of the second clamping surface on the second plane is inclined in a direction away from the clamping portion. The first clamping surface includes a pressing portion and a stepped portion protruding towards the second clamping surface relative to the pressing portion. The outer contours of both the pressing portion and the stepped portion are arc-shaped surfaces adapted to the second clamping surface. The pressing part can clamp and cooperate with the second clamping surface under the preset trajectory of the movable part. In the clamping and cooperating state, the projection of the stepped part on the second plane is located in the inclined direction of the second clamping surface.

5. The clamping device according to claim 4, characterized in that, The first clamp includes a movable guide rail, the movable part is movably disposed on the movable guide rail and moves along the preset trajectory, the movable part has a fixed locking position facing the support part on the preset trajectory, and the assembly part is detachably connected to the fixed locking position.

6. The clamping device according to claim 5, characterized in that, The clamping member further includes a body, the assembly portion and the clamping portion are respectively disposed on both sides of the body, the assembly portion forms a mating groove relative to the upper edge and / or lower edge of the body, and the movable portion has an upper mating edge and a lower mating edge for forming the fixed locking position. When the assembly part is snapped into the fixed slot, at least one of the upper mating edge and the lower mating edge engages with the mating groove, and the at least one smoothly transitions with the upper edge and / or lower edge of the body in the direction of the preset trajectory.

7. The clamping device according to claim 4, characterized in that, The assembly part includes an arc-shaped groove with the same shape as the arc-shaped surface of the second clamping surface, and the movable part has an arc-shaped protrusion that mates with the arc-shaped groove. The concave direction of the arc-shaped groove is the same as the direction of the second clamping surface relative to the first clamping surface.

8. The clamping device according to claim 7, characterized in that, When the pressing part is clamped with the second clamping surface, the projection of the arc-shaped groove on the second plane is located in the inclined direction of the second clamping surface and is located further away from the second clamping surface than the stepped part.

9. The clamping device according to claim 5, characterized in that, The movable guide rail includes two cylindrical tracks that extend along the preset trajectory and are arranged opposite each other, and the two ends of the movable part have guide holes fitted on the cylindrical tracks.

10. The clamping device according to any one of claims 4 to 8, characterized in that, The preset trajectory is a straight line trajectory along the first direction, and the support portion includes a support plate extending a preset width from the second clamping surface along the first direction. The stepped portion abuts against the surface of the support plate in the clamping state of the clamping device.

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