A clip structure and a hair curler

Abstract

The utility model relates to the technical field of clamping plate structure, especially relates to a clamping plate structure and curling iron, clamping plate structure includes screw member, wrench and with the clamping plate of wrench connection, the one end of wrench is press end, the other end is fixed end, the clamping plate includes the connecting end set up corresponding fixed end, when the wrench is connected with the clamping plate, the connecting end and fixed end mutually butt joint, be provided with the connecting protrusion on the connecting end, be equipped with two blocks of interval setting connecting plate on fixed end, form the spacing of limiting between two connecting plates, and the connecting protrusion is connected with the wrench through screw member and stretches into the spacing of limiting in, the two sides of connecting protrusion are equipped with the joint piece respectively, two connecting plates are provided with the joint groove respectively towards the connecting end, and the connecting end and fixed end are through the joint piece and stretch into the joint groove and are clamped tightly, realize accurate positioning through the connecting protrusion and insert the spacing of limiting cooperation, and the double fixing of screw member connection and joint piece clamping tightly is formed, and the connection stability is improved, prevents the slack in use.

Description

Technical Field

[0001] This utility model relates to the field of clamp structure technology, and in particular to a clamp structure and a hair curler. Background Technology

[0002] Hair straighteners are common hair styling tools. They mainly use heating elements to generate a suitable temperature and, with the help of curling irons and other structures, wrap or clamp straight hair to create different curly styles such as curls and waves, satisfying diverse hair styling needs.

[0003] In existing clamping structures, the clamping plate is directly locked to the wrench by two threaded parts. However, the clamping plate is fixed by simply locking it to the wrench with threads, which has certain structural defects. For example, the clamping plate is not supported by enough force and is easy to deform when clamped. Also, if the clamping plate is fixed by screws alone, it will move directly if the screws loosen. Therefore, the clamping plate structure needs to be further optimized. Utility Model Content

[0004] To address the structural defects in existing clamping structures, this utility model provides a clamping structure and a hair curler.

[0005] The present invention provides a clamping plate structure to solve the technical problem. The clamping plate structure includes a threaded component, a wrench, and a clamping plate connected to the wrench. One end of the wrench is a pressing end, and the other end is a fixing end. The clamping plate includes a connecting end corresponding to the fixing end. When the wrench is connected to the clamping plate, the connecting end and the fixing end are mated together. A connecting protrusion is provided on the connecting end, and two spaced connecting plates are provided on the fixing end, forming a limiting space between the two connecting plates. The connecting protrusion extends into the limiting space and is connected to the wrench through the threaded component. Snap-fit ​​components are provided on both sides of the connecting protrusion, and snap-fit ​​grooves are provided on the two connecting plates facing the connecting end. The connecting end and the fixing end are snapped together by the snap-fit ​​components extending into the snap-fit ​​grooves.

[0006] Preferably, the connecting end and the fixing end are respectively provided with a first guide slope and a second guide slope that match each other. The first guide slope includes a rear end face facing the wrench side, and the connecting protrusion extends along the length direction of the clamp and extends beyond the rear end face.

[0007] Preferably, the snap-fit ​​element is disposed on the first guide slope.

[0008] Preferably, the second guide ramp extends along the length of the wrench and extends beyond the connecting plate.

[0009] Preferably, a connecting post extending along the height direction of the clamping plate structure is provided in the limiting space, a first connecting hole is provided on the connecting protrusion corresponding to the connecting post, a limiting wall matching the height of the connecting post is provided on the side of the connecting protrusion facing the connecting post, a gap is spaced between the connecting post and the connecting plate, the connecting protrusion is sleeved on the top of the connecting post through the first connecting hole, and the limiting wall is located within the gap.

[0010] Preferably, the connecting post has a threaded hole.

[0011] Preferably, the clamping plate structure further includes a flexible member disposed between the first guide slope and the second guide slope, wherein the second guide slope is engaged with the flexible member.

[0012] Preferably, the flexible member includes a connecting portion extending into the limiting space, the connecting portion having a second connecting hole adapted to the connecting post, and the connecting portion being sleeved onto the side wall of the connecting post through the second connecting hole.

[0013] Preferably, at least a portion of the connecting portion abuts against the limiting wall and the snap-fit ​​member.

[0014] This utility model also provides a hair curler, which includes a pin and the aforementioned clamping plate structure. The fixed end is provided with a positioning hole corresponding to the pin, and the pin is inserted into the positioning hole to fix the hair curler to the clamping plate structure.

[0015] Compared with the prior art, the clamp structure and hair curler provided by this utility model have the following advantages: 1. The clamping structure provided in this embodiment of the utility model has a connecting protrusion that extends into the limiting space formed by two connecting plates and is then connected by threaded parts to achieve basic positioning and initial fixation, ensuring the stability of the connection; the snap-fit ​​parts on both sides of the connecting protrusion extend into the snap-fit ​​grooves on the connecting plates to tighten, strengthening the firmness of the connection, limiting the relative movement between the clamping plate and the wrench, improving the stable connection of the entire clamping structure during use, and improving the reliability and durability of the clamping structure.

[0016] 2. The clamping plate structure provided in this embodiment of the utility model has a first guide slope and a second guide slope that match each other on the connecting end and the fixed end. These guide slopes guide the wrench and clamping plate during the docking process, allowing the connecting protrusion to slide smoothly into the limiting space formed between the two connecting plates. The connecting protrusion extends along the length of the clamping plate and extends beyond the rear end face, so that the connecting protrusion first extends into the limiting space during alignment, forming a preliminary position constraint, increasing the mating length between the connecting protrusion and the connecting plate, and enhancing the fault tolerance and structural stability of the clamping structure during the assembly process.

[0017] 3. In the embodiment of this utility model, when the first guide slope and the second guide slope are in contact with each other, the snap-fit ​​component can be aligned with the snap-fit ​​groove by the guidance of the first guide slope, avoiding the cumbersome setting of a separate positioning snap-fit ​​structure, improving the smoothness and accuracy of snap-fit ​​during assembly. The first guide slope provides a stable mounting carrier for the snap-fit ​​component, allowing the snap-fit ​​component to be evenly stressed after snap-fit.

[0018] 4. In the clamping plate structure provided in this embodiment of the utility model, the second guide slope extends along the length direction of the wrench and is set beyond the direction of the connecting plate. When it cooperates with the first guide slope of the connecting end, it lengthens the range of guide contact and provides a lasting and stable guide during the docking process of the wrench and the clamping plate, so that the process of the connecting protrusion sliding into the limiting space is smooth and efficient.

[0019] 5. The clamping plate structure provided in this embodiment of the utility model has a connecting post extending along the height direction of the clamping plate structure within the limiting space, which provides a vertical positioning reference for the docking of the connecting protrusion and the fixed end of the wrench. A limiting wall with a height matching the connecting post is provided on the side of the connecting protrusion facing the connecting post. After the connecting protrusion is fitted onto the connecting post, it is embedded in the gap between the connecting post and the connecting plate, which laterally limits the connecting protrusion, prevents the connecting protrusion from lateral shaking and displacement when subjected to force, fills the gap between the connecting post and the connecting plate, and enhances the tightness of the overall connection.

[0020] 6. The clamping plate structure provided in this utility model embodiment has a threaded hole in the connecting column. The threaded part extends into the connecting column through the first connecting hole to fix the fixed end and the connecting end. The connection between the connecting protrusion and the connecting column is formed by a double fastening connection through a sleeve connection and a threaded rigid connection. The force of the threaded connection is concentrated on the connecting column extending along the height direction, avoiding the force being dispersed to weak parts such as the connecting plate of the wrench, thus improving the connection stability.

[0021] 7. The clamping structure provided in this embodiment of the utility model includes a flexible component between the first guide slope and the second guide slope. The second guide slope and the flexible component form a snap-fit ​​connection. The flexible component is elastic, and the elastic tension of the flexible component enhances the adhesion between the first guide slope and the second guide slope, making the first guide slope and the second guide slope fit tightly together. When the clamping structure is subjected to force, the flexible component buffers the impact of external force through its own deformation, avoiding hard contact that could damage the components and improving the durability of the structure.

[0022] 8. In the clamping structure provided in this utility model embodiment, the flexible component is sleeved on the side wall of the connecting column through the connecting part and the second connecting hole. The connecting part extends into the limiting space and is adapted to the connecting column, fixing the position of the flexible component and strengthening the tightness of the connection between the connecting column and the connecting protrusion. The connecting part fits against the side wall of the connecting column, forming a flexible wrap around the connecting column. When the connecting column is subjected to force, the elastic buffer of the flexible component absorbs the impact force.

[0023] 9. In the clamping structure provided in this embodiment of the utility model, the flexible part extends into the limiting space through the connecting part, and at least part of the connecting part abuts against the limiting wall and the snap-fit ​​part. The elastic feature fills the tiny gap between the limiting wall, the snap-fit ​​part and the connecting part, reducing the relative shaking of each component during use.

[0024] 10. The hair curler provided in this embodiment of the utility model has a pin. The pin is inserted into the positioning hole of the fixed end to realize the cooperation between the fixed end of the wrench and the connecting end of the hair curler. Pressing the pressing part of the wrench can lift the entire clamping structure. The pin is fixedly connected to the hair curler to form a limit on the clamping plate structure, prevent the clamping structure from falling off, strengthen the stability of the clamping structure, and ensure the reliable execution of the clamping function. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a three-dimensional schematic diagram of the clamping plate structure provided in the first embodiment of this utility model.

[0027] Figure 2 This is an exploded view of the clamping plate structure provided in the first embodiment of this utility model.

[0028] Figure 3 This is a three-dimensional schematic diagram of the clamping plate of the clamping plate structure provided in the first embodiment of this utility model.

[0029] Figure 4 This is a schematic diagram of the assembly of the wrench and flexible component in the clamping structure provided in the first embodiment of this utility model.

[0030] Figure 5 This is a cross-sectional view of the clamping plate structure provided in the first embodiment of this utility model.

[0031] Figure 6 This is an exploded view of the hair curling device provided in the second embodiment of this utility model.

[0032] Explanation of reference numerals in the attached diagram: 100. Clamping plate structure; 200. Hair curling iron; 1. Wrench; 2. Clamping plate; 3. Threaded parts; 4. Flexible parts; 5. Pins; 11. Pressing end; 12. Fixing end; 21. Connecting end; 22. Clamping component; 41. Connecting part; 120. Limiting space; 121. Connecting plate; 122. Second guide slope; 123. Connecting post; 124. Gap; 125. Positioning hole; 211. Connecting protrusion; 212. Snap-fit ​​component; 213. First guide slope; 411. Second connecting hole; 1211, Snap-fit ​​groove; 1231, Threaded hole; 2111, First connecting hole; 2112, Limiting wall; 2131, Rear end face. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0034] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0035] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0036] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0037] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0038] See Figures 1-2 The first embodiment of this utility model provides a clamping plate structure 100, which includes a threaded component 3, a wrench 1, and a clamping plate 2 connected to the wrench 1. One end of the wrench 1 is a pressing end 11, and the other end is a fixing end 12. The clamping plate 2 includes a connecting end 21 corresponding to the fixing end 12. When the wrench 1 is connected to the clamping plate 2, the connecting end 21 and the fixing end 12 are mated together. The connecting end 21 is provided with a connecting protrusion 211, and the fixing end 12 is provided with two spaced connecting plates 121. A limiting space 120 is formed between the two connecting plates 121. The connecting protrusion 211 extends into the limiting space 120 and is connected to the wrench 1 through the threaded component 3. The two sides of the connecting protrusion 211 are respectively provided with snap-fit ​​components 212, and the two connecting plates 121 are respectively provided with snap-fit ​​grooves 1211 facing the connecting end 21. The connecting end 21 and the fixing end 12 are clamped together by the snap-fit ​​components 212 extending into the snap-fit ​​grooves 1211.

[0039] Understandably, the pressing end 11 of the wrench 1 allows the user to apply force, adjusting the distance between the clamp 2 and the external structure through the lever principle. The fixed end 12 of the wrench 1 engages with the connecting end 21 of the clamp 2 to connect the clamp 2 and the wrench 1. The connecting protrusion 211 extends into the limiting space 120 formed by the two connecting plates 121, and is then connected by the threaded part 3 to achieve the initial fixation of the wrench 1 and the clamp 2, ensuring the stability of the connection. The limiting space 120 formed by the connecting plate 121 restricts the offset of the connecting protrusion 211. The snap-fit ​​part 212 and the snap-fit ​​groove 1211 are interlocked, further strengthening the connection stability between the connecting end 21 and the fixed end 12, and jointly ensuring the overall robustness of the clamp structure 100.

[0040] Specifically, the gap 124 between the two connecting plates 121 spaced apart on the fixed end 12, which is the width of the limiting space 120, adapts to the width of the connecting protrusion 211, so that the limiting space 120 can accurately accommodate the connecting protrusion 211.

[0041] In one non-limiting embodiment, the snap-fit ​​groove 1211 on the connecting plate 121 has a U-shaped structure, and the snap-fit ​​groove 1211 has a certain angle with the width direction of the clamping plate structure 100, so that when the connecting end 21 of the clamping plate 2 is snapped in, a component force along the width direction of the clamping plate 2 is generated, making the connecting end 21 and the fixed end 12 fit more tightly and enhancing the stability of the connection. The groove size of the snap-fit ​​groove 1211 is slightly smaller than the maximum outer diameter of the snap-fit ​​member 212. When the connecting protrusion 211 extends into the limiting space 120, the snap-fit ​​member 212 can be elastically snapped into the snap-fit ​​groove 1211, and the threaded part 3 is used to achieve double fixation.

[0042] Furthermore, participation Figures 3-4The connecting end 21 and the fixed end 12 are respectively provided with a first guide slope 213 and a second guide slope 122 that match each other. The first guide slope 213 includes a rear end face 2131 facing the wrench 1 side. The connecting protrusion 211 extends along the length direction of the clamp 2 and extends beyond the rear end face 2131.

[0043] Understandably, the first guide slope 213 and the second guide slope 122 guide the docking process of the wrench 1 and the clamping plate 2, so that the connecting protrusion 211 can smoothly slide into the limiting space 120 formed between the two connecting plates 121. The connecting protrusion 211 extends along the length direction of the clamping plate 2 and is set beyond the rear end face 2131, so that when the alignment is made, the connecting protrusion 211 first extends into the limiting space 120 to form a preliminary position constraint.

[0044] Specifically, the first guide slope 213 of the connecting end 21 and the second guide slope 122 of the fixed end 12 are at complementary inclination angles, forming a guiding effect when they are fitted together, which facilitates the quick alignment and installation of the connecting end 21 and the fixed end 12. The rear end face 2131 of the first guide slope 213 faces the wrench 1 side, and the connecting protrusion 211 extends along the length of the clamp 2 and exceeds the rear end face 2131, ensuring that it fully overlaps with the connecting plate 121 of the fixed end 12.

[0045] Furthermore, the snap-fit ​​element 212 is disposed on the first guide slope 213, and the snap-fit ​​element 212 extends along the length direction of the clamping plate 2 and extends beyond the rear end face 2131.

[0046] Understandably, the snap-fit ​​component 212 is located on the first guide slope 213, corresponding to the snap-fit ​​groove 1211 of the connecting plate 121. It automatically slides into the snap-fit ​​groove 1211 during the fitting process of the guide slope, pre-fixing the connecting end 21 and the fixed end 12 in advance, which facilitates the subsequent installation of the threaded component 3.

[0047] Specifically, both the snap-fit ​​member 212 and the connecting protrusion 211 extend beyond the rear end face 2131, and the length of the connecting protrusion 211 extending along the length direction of the clamping plate 2 exceeds the length of the snap-fit ​​member 212 extending along the length direction of the clamping plate 2. During the connection process, the longer connecting protrusion 211 can enter the limiting space 120 before the snap-fit ​​member 212, providing a guiding foundation for the snap-fit ​​member 212 to accurately snap into the snap-fit ​​groove 1211 and restricting lateral displacement.

[0048] In one non-limiting embodiment, the snap-fit ​​212 and the connecting protrusion 211 are integrally formed on the first guide slope 213 along the length of the clamping plate 2. The three are integrally manufactured by metal die casting process, resulting in a stable structure. The snap-fit ​​212 and the connecting protrusion 211 have an inclined transition connection structure, which makes the snap-fit ​​212 and the connecting protrusion 211 smoothly connected and enhances the connection strength between the two.

[0049] Furthermore, the second guide ramp 122 extends along the length of the wrench 1 and extends beyond the connecting plate 121.

[0050] Understandably, the second guide ramp 122 extends beyond the connecting plate 121, and the extended part contacts the first guide ramp 213. With the help of the ramp, it provides sufficient guiding space for the connecting end 21, so that the connecting end 21 can smoothly slide along the second guide ramp 122 to the docking position.

[0051] Furthermore, a connecting post 123 extending along the height direction of the clamping structure 100 is provided in the limiting space 120. A first connecting hole 2111 is provided on the connecting protrusion 211 corresponding to the connecting post 123. A limiting wall 2112 matching the height of the connecting post 123 is provided on the side of the connecting protrusion 211 facing the connecting post 123. A gap 124 is spaced between the connecting post 123 and the connecting plate 121. The connecting protrusion 211 is sleeved on the top of the connecting post 123 through the first connecting hole 2111, and the limiting wall 2112 is located within the gap 124.

[0052] Understandably, the connecting post 123 extends along the height direction of the clamping plate structure 100, providing a carrier for the connecting protrusion 211 to be fitted. The first connecting hole 2111 is correspondingly set with the connecting post 123, so that the connecting protrusion 211 can be accurately fitted onto the top of the connecting post 123. The limiting wall 2112 of the connecting protrusion 211 matches the height of the connecting post 123 and is located within the gap 124 between the connecting post 123 and the connecting plate 121, limiting the displacement of the connecting protrusion 211 in the height direction. It also uses the space of the gap 124 to guide and limit the connecting protrusion 211 when it is fitted into the limiting space 120, further enhancing the stability of the connection.

[0053] Specifically, in a non-limiting embodiment, the connecting post 123 is cylindrical and is vertically fixed at the middle position between the two connecting plates 121 along the height direction of the limiting space 120. The connecting post 123 has a threaded hole 1231 inside, and the height of the connecting post 123 is lower than that of the connecting plate 121.

[0054] The first connecting hole 2111 is a circular through hole that passes through the connecting protrusion 211. The diameter of the first connecting hole 2111 is adapted to the outer diameter of the connecting post 123, ensuring that the connecting protrusion 211 can be accurately fitted into the connecting post 123.

[0055] The limiting wall 2112 is a vertical flange on the side of the connecting protrusion 211 facing the connecting post 123. The height of the limiting wall 2112 is the same as the height of the connecting post 123, and the thickness matches the width of the gap 124 between the connecting post 123 and the connecting plate 121.

[0056] Furthermore, a threaded hole 1231 is provided inside the connecting post 123. The threaded hole 1231 extends from the top to the bottom and matches the size of the threaded part 3 to achieve a stable connection.

[0057] For example, the assembly process of the clamp structure 100 provided by this utility model is as follows: During assembly, the connecting protrusion 211 first extends into the limiting space 120, and then moves downward so that the first connecting hole 2111 fits into the outer wall of the connecting post 123. The first connecting hole 2111 and the connecting post 123 fit tightly together. At the same time, the limiting wall 2112 is inserted into the gap 124 between the connecting post 123 and the connecting plate 121, and the snap fastener 212 is inserted into the snap fastener groove 1211 to limit the displacement of the connecting protrusion 211 in the width direction. The threaded part 3 passes through the first connecting hole 2111 and connects with the threaded hole 1231 of the connecting post 123. The connecting protrusion 211 is limited in the limiting space 120 by tightening force.

[0058] Furthermore, the clamping structure 100 also includes a flexible member 4 disposed between the first guide slope 213 and the second guide slope 122, and the second guide slope 122 is engaged with the flexible member 4.

[0059] Specifically, the flexible component 4 is made of wear-resistant rubber or silicone material, and its shape is adapted to fit the first guide slope 213 and the second guide slope 122. One side of the flexible component 4 is provided with a groove or protrusion that engages with the second guide slope 122, and the other side is a smooth arc surface that contacts the first guide slope 213.

[0060] Understandably, during assembly, the groove or protrusion of the flexible component 4 is aligned with the protrusion or groove adapted to fit on the second guide slope 122. The elasticity of the material of the flexible component 4 is used to achieve a tight fixation between the first guide slope 213 and the second guide slope 122, buffering the collision between the first guide slope 213 and the second guide slope 122, reducing wear, filling the tiny gap 124 between the two slopes, increasing the friction of the contact surface, and preventing relative sliding after docking.

[0061] Furthermore, the flexible component 4 includes a connecting portion 41 that extends into the limiting space 120. The connecting portion 41 is provided with a second connecting hole 411 that is adapted to the connecting post 123. The connecting portion 41 is sleeved on the side wall of the connecting post 123 through the second connecting hole 411.

[0062] Understandably, the flexible component 4 is further secured by the sleeve structure that is fitted onto the side wall of the connecting post 123 through the second connecting hole 411, preventing it from falling off, filling the gap 124 between the connecting post 123 and the connecting protrusion 211, and enhancing the overall sealing performance.

[0063] Specifically, the connecting part 41 is an elongated protrusion extending from the flexible part 4, and is integrally formed using the same elastic material as the main body of the flexible part 4. The width of the connecting part 41 is slightly smaller than the limiting space 120, so it can smoothly extend into the limiting space 120. The second connecting hole 411 penetrates the connecting part 41. The diameter of the second connecting hole 411 is slightly larger than the outer diameter of the connecting post 123. The wall of the second connecting hole 411 is a smooth arc surface. During assembly, the connecting part 41 is installed synchronously with the flexible part 4, and the second connecting hole 411 is aligned with the connecting post 123 and fitted in, using the elasticity of the material to tightly fit the side wall of the connecting post 123.

[0064] Further, see Figure 5 At least part of the connecting part 41 abuts against the limiting wall 2112 and the snap-fit ​​part 212.

[0065] Understandably, by utilizing the contact between the connecting part 41 and the limiting wall 2112 and the snap-fit ​​part 212, a buffer is formed at the contact point to absorb vibration, reduce hard collision wear between components, fill the gap 124, enhance the tightness and stability of the connection, and improve the impact resistance and fatigue resistance of the overall structure.

[0066] Please see Figure 6 The second embodiment of this utility model provides a hair curler 200, which includes a pin 5 and a clamping structure 100 as in the first embodiment. The fixed end 12 is provided with a positioning hole 125 corresponding to the pin 5. The pin 5 is inserted into the positioning hole 125 to fix the hair curler 200 to the clamping structure 100.

[0067] Understandably, the quick and secure connection between the hair curler 200 and the clamping plate structure 100 is achieved through the insertion and removal of the pin 5 and the positioning hole 125, ensuring the stability of the connection to meet the clamping force requirements when curling hair.

[0068] Specifically, the positioning hole 125 is provided on the connecting plate 121.

[0069] Compared with the prior art, the clamp structure and hair curler provided by this utility model have the following advantages: 1. The clamping structure provided in this embodiment of the utility model has a connecting protrusion that extends into the limiting space formed by two connecting plates and is then connected by threaded parts to achieve basic positioning and initial fixation, ensuring the stability of the connection; the snap-fit ​​parts on both sides of the connecting protrusion extend into the snap-fit ​​grooves on the connecting plates to tighten, strengthening the firmness of the connection, limiting the relative movement between the clamping plate and the wrench, improving the stable connection of the entire clamping structure during use, and improving the reliability and durability of the clamping structure.

[0070] 2. The clamping plate structure provided in this embodiment of the utility model has a first guide slope and a second guide slope that match each other on the connecting end and the fixed end. These guide slopes guide the wrench and clamping plate during the docking process, allowing the connecting protrusion to slide smoothly into the limiting space formed between the two connecting plates. The connecting protrusion extends along the length of the clamping plate and extends beyond the rear end face, so that the connecting protrusion first extends into the limiting space during alignment, forming a preliminary position constraint, increasing the mating length between the connecting protrusion and the connecting plate, and enhancing the fault tolerance and structural stability of the clamping structure during the assembly process.

[0071] 3. In the embodiment of this utility model, when the first guide slope and the second guide slope are in contact with each other, the snap-fit ​​component can be aligned with the snap-fit ​​groove by the guidance of the first guide slope, avoiding the cumbersome setting of a separate positioning snap-fit ​​structure, improving the smoothness and accuracy of snap-fit ​​during assembly. The first guide slope provides a stable mounting carrier for the snap-fit ​​component, allowing the snap-fit ​​component to be evenly stressed after snap-fit.

[0072] 4. In the clamping plate structure provided in this embodiment of the utility model, the second guide slope extends along the length direction of the wrench and is set beyond the direction of the connecting plate. When it cooperates with the first guide slope of the connecting end, it lengthens the range of guide contact and provides a lasting and stable guide during the docking process of the wrench and the clamping plate, so that the process of the connecting protrusion sliding into the limiting space is smooth and efficient.

[0073] 5. The clamping plate structure provided in this embodiment of the utility model has a connecting post extending along the height direction of the clamping plate structure within the limiting space, which provides a vertical positioning reference for the docking of the connecting protrusion and the fixed end of the wrench. A limiting wall with a height matching the connecting post is provided on the side of the connecting protrusion facing the connecting post. After the connecting protrusion is fitted onto the connecting post, it is embedded in the gap between the connecting post and the connecting plate, which laterally limits the connecting protrusion, prevents the connecting protrusion from lateral shaking and displacement when subjected to force, fills the gap between the connecting post and the connecting plate, and enhances the tightness of the overall connection.

[0074] 6. The clamping plate structure provided in this utility model embodiment has a threaded hole in the connecting column. The threaded part extends into the connecting column through the first connecting hole to fix the fixed end and the connecting end. The connection between the connecting protrusion and the connecting column is formed by a double fastening connection through a sleeve connection and a threaded rigid connection. The force of the threaded connection is concentrated on the connecting column extending along the height direction, avoiding the force being dispersed to weak parts such as the connecting plate of the wrench, thus improving the connection stability.

[0075] 7. The clamping structure provided in this embodiment of the utility model includes a flexible component between the first guide slope and the second guide slope. The second guide slope and the flexible component form a snap-fit ​​connection. The flexible component is elastic, and the elastic tension of the flexible component enhances the adhesion between the first guide slope and the second guide slope, making the first guide slope and the second guide slope fit tightly together. When the clamping structure is subjected to force, the flexible component buffers the impact of external force through its own deformation, avoiding hard contact that could damage the components and improving the durability of the structure.

[0076] 8. In the clamping structure provided in this utility model embodiment, the flexible component is sleeved on the side wall of the connecting column through the connecting part and the second connecting hole. The connecting part extends into the limiting space and is adapted to the connecting column, fixing the position of the flexible component and strengthening the tightness of the connection between the connecting column and the connecting protrusion. The connecting part fits against the side wall of the connecting column, forming a flexible wrap around the connecting column. When the connecting column is subjected to force, the elastic buffer of the flexible component absorbs the impact force.

[0077] 9. In the clamping structure provided in this embodiment of the utility model, the flexible part extends into the limiting space through the connecting part, and at least part of the connecting part abuts against the limiting wall and the snap-fit ​​part. The elastic feature fills the tiny gap between the limiting wall, the snap-fit ​​part and the connecting part, reducing the relative shaking of each component during use.

[0078] 10. The hair curler provided in this embodiment of the utility model has a pin. The pin is inserted into the positioning hole of the fixed end to realize the cooperation between the fixed end of the wrench and the connecting end of the hair curler. Pressing the pressing part of the wrench can lift the entire clamping structure. The pin is fixedly connected to the hair curler to form a limit on the clamping plate structure, prevent the clamping structure from falling off, strengthen the stability of the clamping structure, and ensure the reliable execution of the clamping function.

[0079] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A clamping plate structure, characterized in that: The clamping plate structure includes a threaded component, a wrench, and a clamping plate connected to the wrench. One end of the wrench is a pressing end, and the other end is a fixing end. The clamping plate includes a connecting end corresponding to the fixing end. When the wrench is connected to the clamping plate, the connecting end and the fixing end are mated together. The connecting end is provided with a connecting protrusion, and the fixed end is provided with two spaced connecting plates, forming a limiting space between the two connecting plates. The connecting protrusion extends into the limiting space and is connected to the wrench through the threaded part. The connecting protrusion has snap-fit ​​components on both sides, and the two connecting plates have snap-fit ​​grooves facing the connecting end. The connecting end and the fixing end are snapped together by the snap-fit ​​components extending into the snap-fit ​​grooves.

2. The clamping plate structure as described in claim 1, characterized in that: The connecting end and the fixed end are respectively provided with a first guide slope and a second guide slope that match each other. The first guide slope includes a rear end face facing the wrench side. The connecting protrusion extends along the length direction of the clamp and extends beyond the rear end face.

3. The clamping plate structure as described in claim 2, characterized in that: The snap-fit ​​component is disposed on the first guide slope.

4. The clamping plate structure as described in claim 2, characterized in that: The second guide ramp extends along the length of the wrench and extends beyond the connecting plate.

5. The clamping plate structure as described in claim 3, characterized in that: A connecting post extending along the height direction of the clamping plate structure is provided within the limiting space. A first connecting hole is provided on the connecting protrusion corresponding to the connecting post. A limiting wall matching the height of the connecting post is provided on the side of the connecting protrusion facing the connecting post. There is a gap between the connecting post and the connecting plate. The connecting protrusion is sleeved on the top of the connecting post through the first connecting hole, and the limiting wall is located within the gap.

6. The clamping plate structure as described in claim 5, characterized in that: The connecting column has a threaded hole.

7. The clamping plate structure as described in claim 5, characterized in that: The clamping structure also includes a flexible member disposed between the first guide slope and the second guide slope, wherein the second guide slope is engaged with the flexible member.

8. The clamping plate structure as described in claim 7, characterized in that: The flexible component includes a connecting portion that extends into the limiting space. The connecting portion is provided with a second connecting hole that is adapted to the connecting post. The connecting portion is sleeved onto the side wall of the connecting post through the second connecting hole.

9. The clamping plate structure as described in claim 8, characterized in that: At least a portion of the connecting portion abuts against the limiting wall and the snap-fit ​​member.

10. A hair curling iron, characterized in that: The hair curler includes a pin and a clamping plate structure as described in any one of claims 1-9. The fixed end is provided with a positioning hole corresponding to the pin, and the pin is inserted into the positioning hole to fix the hair curler to the clamping plate structure.

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