Straightener with adjustable plate spacing

Abstract

The present invention discloses a hair straightener with adjustable plate spacing, belonging to the technical field of hair straighteners. Through the provided limiting mechanism, before using the hair straightener body, the positions of the traction rope connector and the slider are adjusted according to the size of the user's palm. Under the restriction of the folded traction rope, the spacing between the lower plate and the upper plate after unfolding matches the size of the user's palm, so as to achieve the purpose of making the clamping action more labor-saving; when long-term hair perming for several minutes to more than ten minutes is required, on the premise that the temperature is ensured to be appropriate and no scalding will occur, the positions of the traction rope connector and the slider can be adjusted separately. When the lower plate and the upper plate are in the closed state, the slider cooperates with the traction rope connector to actively straighten the folded traction rope. Under the restriction of the folded traction rope, the lower plate and the upper plate cannot be unfolded by straightening the folded traction rope, so as to achieve the purpose of keeping the lower plate and the upper plate in a closed state all the time, and the user does not need to continuously apply a clamping force.

Description

Technical Field

[0001] The present invention relates to the technical field of hair straighteners, and particularly to a hair straightener with adjustable plate spacing. Background Art

[0002] A hair straightener heats the heating element of the hair straightener (such as MCH, PTC or heating wire) through an electric current, and then conducts it to an aluminum plate or a ceramic plate to make it heat up. The hair is heated and softened by the heating element, and then cooled to achieve the purpose of straightening the hair. When using a hair straightener, it is necessary to adjust the appropriate temperature according to one's own hair quality to avoid scalding due to too high temperature;

[0003] Most of the existing hair straighteners are set in a V shape and a torsion spring is arranged at the hinge shaft. When in use, it is necessary to hold the hair straightener with the hand to make the two heating plates fit the hair. The purpose of doing this is that when the temperature is not suitable, the user can loosen the hair straightener, and the heating plates can be quickly unfolded by using the elastic deformation recovery of the torsion spring, so as to avoid scalding the skin;

[0004] Although this design avoids scalding, in the actual use process, since pressure needs to be applied to the hair straightener all the time to ensure that the heating plates fit the hair, it causes certain difficulties for users with smaller palms or weaker grip strength when using it;

[0005] When the hair straightener is loosened and the two ends are fully unfolded, the distance between the two ends is too large. The user's palm is too small to hold the outermost ends of the hair straightener at the same time, and can only apply pressure by holding the position close to the hinge shaft. Since the lever principle cannot be used to reduce the force applied for the clamping action, more physical strength will be consumed when using it, and when a more lasting hair styling effect is required, the overall time required ranges from several minutes to more than ten minutes. Holding and applying pressure for a long time will also make the user's experience poor. Summary of the Invention

[0006] The purpose of the present invention is to solve the problem that when the hair straightener is loosened and the two ends are fully unfolded, the distance between the two ends is too large. The user's palm is too small to hold the outermost ends of the hair straightener at the same time, and can only apply pressure by holding the position close to the hinge shaft. More physical strength will be consumed when using it, and holding and applying pressure for a long time will also make the user's experience poor, and a hair straightener with adjustable plate spacing is proposed.

[0007] In order to achieve the above purpose, the present invention adopts the following technical hair straightener with adjustable plate spacing:

[0008] It includes a hair straightener body, which includes a lower clamping plate, an upper clamping plate, and a first hinge shaft that rotatably connects the lower clamping plate and the upper clamping plate. The lower clamping plate and the upper clamping plate are connected by a limiting mechanism. The limiting mechanism includes an installation cavity installed on the lower clamping plate and a second sliding rail opened on the upper clamping plate. A traction rope connector and a slider are respectively slidably arranged in the installation cavity and on the second sliding rail. A folding traction rope that limits the adjustable distance between the lower clamping plate and the upper clamping plate is connected between the traction rope connector and the slider;

[0009] When the traction rope connector and the slider are at the same vertical height, the lower clamping plate and the upper clamping plate are unfolded to the maximum, and the folding traction rope is straightened. When the traction rope connector and the slider are not at the same vertical height, when the slider moves, it cooperates with the traction rope connector to straighten the folding traction rope, so that the lower clamping plate and the upper clamping plate cannot be unfolded by straightening the folding traction rope.

[0010] As a further description of the hair straightener with adjustable plate spacing of the above technology:

[0011] An inclined slideway and a first sliding rail are arranged inside the installation cavity. Through grooves are opened on both sides of the slideway. An adjusting mechanism connected to the traction rope connector is slidably embedded on the first sliding rail;

[0012] The adjusting mechanism includes a mounting frame installed on the traction rope connector. The mounting frame is attached to the through groove and a lifting frame is slidably sleeved on the surface. The mounting frame and the lifting frame penetrate the through groove and the lifting frame is connected to a slide table slidably embedded on the first sliding rail. A push block that penetrates the bottom of the installation cavity and fits the outer edge of the lower clamping plate is installed on the slide table.

[0013] As a further description of the hair straightener with adjustable plate spacing of the above technology:

[0014] The adjusting mechanism further includes a ball mounting cavity installed in the middle of the mounting frame. A ball is embedded in the ball mounting cavity and the ball rolls and fits with the inner wall of the slideway.

[0015] As a further description of the hair straightener with adjustable plate spacing of the above technology:

[0016] A tooth row is installed at the bottom of the first sliding rail. A locking mechanism that cooperates with the tooth row is arranged on the slide table to fix the position of the traction rope connector;

[0017] The locking mechanism includes a second hinge shaft installed on the slide table and a hook rotatably arranged on the second hinge shaft. Torsion springs are wound around both ends of the second hinge shaft. The two ends of the torsion spring are respectively connected to the second hinge shaft and the hook. The hook can be embedded in the tooth gap of the tooth row to fix the push block.

[0018] As a further description of the hair straightener with adjustable plate spacing of the above technology:

[0019] The locking mechanism further includes an abutting plate disposed on the hook, a spring telescopic rod disposed on the sliding table, and a button connected to the spring telescopic rod. The spring telescopic rod penetrates through the abutting plate and the top of the button abuts against the abutting plate. Pressing the button can cause the spring telescopic rod to contract and push the abutting plate, and the abutting plate drives the hook to rotate about the second hinge axis.

[0020] As a further description of the straightener with adjustable plate spacing of the above technology:

[0021] An annular mounting groove having the same height as the button is provided on the pushing block. The button is disposed in the mounting groove and penetrates through the mounting groove to be connected to the spring telescopic rod. When using the lower clamping plate, the button is protected by the mounting groove, so that the finger cannot touch the button in the holding state;

[0022] A groove for the finger to extend into is provided on the surface of the mounting groove away from the first hinge axis.

[0023] As a further description of the straightener with adjustable plate spacing of the above technology:

[0024] Positioning pins are provided on both sides of the mounting cavity. A counterbore for installing the mounting cavity is provided at the bottom of the lower clamping plate. The mounting cavity is detachably installed in the counterbore through the positioning pins.

[0025] As a further description of the straightener with adjustable plate spacing of the above technology:

[0026] A straight groove penetrating to the outside of the upper clamping plate is provided on one side of the second slide rail. The position of the slider is adjusted by a positioning mechanism. The positioning mechanism includes a connecting rod rotatably installed on the slider and penetrating through the straight groove. A turning knob is installed at the end of the connecting rod, and the turning knob pushes the slider to move through the connecting rod.

[0027] As a further description of the straightener with adjustable plate spacing of the above technology:

[0028] A diamond-shaped fastener is sleeved and installed on the surface of the connecting rod. There are two protrusions on the fastener. Upper clamping grooves and lower clamping grooves are respectively provided on the inner wall of the straight groove provided on the surface of the upper clamping plate and are matched with the protrusions of the fastener. The fastener rotates with the connecting rod and is inserted into the upper clamping groove and the lower clamping groove at the same time for limiting.

[0029] As a further description of the straightener with adjustable plate spacing of the above technology:

[0030] The connecting rod includes a fixed rod connected to the slider and a rotating sleeve rod connected to the fastener. An arc-shaped deflection groove is provided on the surface of the fixed rod and a positioning member is provided on the inner wall of the rotating sleeve rod. The positioning member is rotatably disposed in the deflection groove and is in interference fit with the deflection groove. When the fastener rotates, the positioning member rotates from one end of the deflection groove to the other end.

[0031] In summary, due to the adoption of the straightener with adjustable plate spacing of the above technology, the beneficial effects of the present invention are:

[0032] 1. By means of the provided limiting mechanism, before using the hair straightener body, the positions of the traction rope connector and the slider are adjusted according to the size of the user's palm. Under the limitation of the folded traction rope, the distance between the lower clamping plate and the upper clamping plate after unfolding matches the size of the user's palm, so as to achieve the purpose of making the clamping action more labor-saving.

[0033] 2. When long-term hair perming for several minutes to more than ten minutes is required, under the condition that the temperature is ensured to be appropriate and there will be no scalding, the positions of the traction rope connector and the slider can be adjusted separately. When the lower clamping plate and the upper clamping plate are in the closed state, the slider cooperates with the traction rope connector to actively straighten the folded traction rope. Under the limitation of the folded traction rope, the lower clamping plate and the upper clamping plate cannot be unfolded by straightening the folded traction rope, so as to achieve the purpose of keeping the lower clamping plate and the upper clamping plate in a closed state all the time, and the user does not need to continuously apply a clamping force.

[0034] 3. Compared with the traditional external frame-type limiting structure, the traction rope connector, the slider and the folded traction rope are all arranged inside the hair straightener body. The maximum distance between the lower clamping plate and the upper clamping plate after unfolding can be adjusted by changing the position of the folded traction rope, and no redundant structure that may affect the user's holding comfort is arranged on the surface of the hair straightener body. Description of the Drawings

[0035] Figure 1 Shows a three-dimensional structural schematic diagram of a hair straightener with adjustable plate spacing;

[0036] Figure 2 Shows a three-dimensional structural schematic diagram of the folded traction rope limiting the minimum unfolding amplitude of the hair straightener;

[0037] Figure 3 Shows Figure 2 The enlarged structural schematic diagram at A in

[0038] Figure 4 Shows a three-dimensional structural schematic diagram of the folded traction rope limiting the maximum unfolding amplitude of the hair straightener;

[0039] Figure 5 Shows a partial front view sectional structural schematic diagram of a hair straightener with adjustable plate spacing;

[0040] Figure 6 Shows Figure 5 The enlarged structural schematic diagram at B in

[0041] Figure 7 Shows a partial three-dimensional structural schematic diagram of the limiting mechanism and the adjusting mechanism;

[0042] Figure 8 Shows a partial three-dimensional structural schematic diagram in the locked state of the locking mechanism;

[0043] Figure 9 Shows a partial three-dimensional structural schematic diagram of the locking mechanism in the unlocked state;

[0044] Figure 10 Shows a partial three-dimensional sectional structural schematic diagram of the adjustment mechanism moving within the limit mechanism;

[0045] Figure 11 Shows a three-dimensional structural schematic diagram of the installation cavity;

[0046] Figure 12 Shows a side sectional structural schematic diagram of the hair straightener body and the positioning mechanism;

[0047] Figure 13 Shows a three-dimensional sectional structural schematic diagram of the connecting rod, fastener and knob;

[0048] Figure 14 Shows Figure 13 An enlarged structural schematic diagram at position C in;

[0049] Figure 15 Shows a partial front sectional structural schematic diagram of the positioning mechanism;

[0050] Figure 16 Shows a partial front sectional structural schematic diagram of the positioning mechanism when moving and straightening the folded traction rope.

[0051] Legend:

[0052] 10. Hair straightener body; 11. Lower clamping plate; 12. Upper clamping plate; 13. First hinge shaft;

[0053] 20. Limit mechanism; 21. Installation cavity; 211. Slideway; 212. Through groove; 213. First slide rail; 214. Tooth row; 215. Positioning pin; 22. Traction rope connecting piece; 23. Second slide rail; 24. Slide block; 25. Folded traction rope;

[0054] 30. Adjustment mechanism; 31. Mounting frame; 32. Ball mounting cavity; 33. Ball; 34. Lifting frame; 35. Slide table; 36. Pushing block;

[0055] 40. Locking mechanism; 41. Second hinge shaft; 42. Hook; 43. Abutting plate; 44. Spring telescopic rod; 45. Installation groove; 46. Button;

[0056] 50. Positioning mechanism; 51. Connecting rod; 511. Fixed rod; 512. Deflection groove; 513. Rotating sleeve rod; 514. Positioning piece; 52. Fastener; 53. Knob; 54. Upper card slot; 55. Lower card slot. Detailed implementation manners

[0057] The following will clearly and completely describe the straightener with adjustable plate spacing in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0058] In order to solve the problem that when the straightener is released and the two ends are fully unfolded, the distance between the two ends is too large, and the user's palm is small and cannot hold the outermost ends of the straightener at the same time. The user can only apply pressure by holding the position close to the hinge axis, which will consume more physical strength during use, and the long-term holding and pressing will also make the user's experience poor. The present invention proposes a straightener with adjustable plate spacing, as Figure 1 - Figure 16 shown:

[0059] It includes a straightener body 10, the straightener body 10 includes a lower clamping plate 11, an upper clamping plate 12, and a first hinge axis 13 that rotatably connects the lower clamping plate 11 and the upper clamping plate 12. The lower clamping plate 11 and the upper clamping plate 12 are connected by a limiting mechanism 20, as Figure 2 、 Figure 4 and Figure 5 shown. The limiting mechanism 20 includes an installation cavity 21 installed on the lower clamping plate 11 and a second slide rail 23 opened on the upper clamping plate 12. A traction rope connector 22 and a slider 24 are respectively slidably arranged in the installation cavity 21 and on the second slide rail 23. A folding traction rope 25 that limits the adjustable distance between the lower clamping plate 11 and the upper clamping plate 12 is connected between the traction rope connector 22 and the slider 24;

[0060] Before using the straightener body 10, adjust the positions of the traction rope connector 22 and the slider 24 according to the size of the user's palm. While the traction rope connector 22 moves inside the installation cavity 21, the slider 24 moves under the restriction of the second slide rail 23. The folding traction rope 25 moves with the traction rope connector 22 and the slider 24. When the traction rope connector 22 and the slider 24 move to the appropriate positions and are at the same vertical height, during the automatic unfolding process of the lower clamping plate 11 and the upper clamping plate 12 under the push of the torsion spring in the first hinge axis 13, the folding traction rope 25 will be pulled until it is straightened. Under the restriction of the folding traction rope 25, the distance between the lower clamping plate 11 and the upper clamping plate 12 after unfolding matches the size of the user's palm. The user can hold and apply pressure at a position far from the first hinge axis 13. When the force applied by the user is the same, applying pressure at a position far from the first hinge axis 13 will cause the lower clamping plate 11 and the upper clamping plate 12 to generate a relatively large clamping force, so as to achieve the purpose of making the clamping action more labor-saving. When the distance between the folding traction rope 25 and the first hinge axis 13 is the largest, the adjustable distance between the lower clamping plate 11 and the upper clamping plate 12 is the smallest, which is suitable for users with small palms and less strength;

[0061] If you want to achieve a more lasting perm effect, you need to perform a long-term perm for several minutes to more than ten minutes. When it is ensured that the temperature is appropriate and there will be no scalding, the positions of the traction rope connector 22 and the slider 24 can be adjusted separately. As Figure 16 shown, the traction rope connector 22 and the slider 24 are in positions where they are not at the same vertical height. When the lower clamping plate 11 and the upper clamping plate 12 are in the closed state, the slider 24 cooperates with the traction rope connector 22 to actively straighten the folded traction rope 25. Under the restriction of the folded traction rope 25, the lower clamping plate 11 and the upper clamping plate 12 cannot be unfolded by straightening the folded traction rope 25, so as to achieve the purpose of keeping the lower clamping plate 11 and the upper clamping plate 12 in a closed state all the time, and the user does not need to continuously apply a clamping force;

[0062] Compared with the traditional external frame-type limit structure, the traction rope connector 22, the slider 24 and the folded traction rope 25 are all arranged inside the hair straightener body 10. The maximum distance between the unfolded lower clamping plate 11 and the upper clamping plate 12 can be adjusted by changing the position of the folded traction rope 25, and there are no redundant structures on the surface of the hair straightener body 10 that may affect the user's holding comfort.

[0063] In order to be able to adjust the position of the traction rope connector 22, as Figure 5 , Figure 7 and Figure 10 shown, an inclined slideway 211 and a first slide rail 213 are arranged inside the installation cavity 21. Through grooves 212 are opened on both sides of the slideway 211. An adjusting mechanism 30 connected to the traction rope connector 22 is slidably embedded on the first slide rail 213;

[0064] The adjusting mechanism 30 includes a mounting frame 31 mounted on the traction rope connector 22. The mounting frame 31 fits with the through groove 212 and a lifting frame 34 is slidably sleeved on the surface. The mounting frame 31 and the lifting frame 34 penetrate through the through groove 212 and the lifting frame 34 is connected to a slide table 35 slidably embedded on the first slide rail 213. A push block 36 that penetrates through the bottom of the installation cavity 21 and fits with the outer edge of the lower clamping plate 11 is mounted on the slide table 35;

[0065] When it is necessary to adjust the position of the traction rope connector 22, by pushing the push block 36, the push block 36 drives the slide table 35 to slide under the restriction of the first slide rail 213. At the same time, the slide table 35 drives the mounting frame 31 to move in the through groove 212 through the lifting frames 34 on both sides. The mounting frame 31 moves along the surface of the slideway 211. Under the push of the slideway 211 and the restriction of the lifting frame 34, the mounting frame 31 can drive the traction rope connector 22 to move and lift, while adjusting the position of the folded traction rope 25 and changing the distance from the slider 24, so as to achieve the purpose of adjusting the unfolded distance between the lower clamping plate 11 and the upper clamping plate 12;

[0066] Preferably, in order to enable the mounting bracket 31 to move smoothly on the surface of the slideway 211, the adjusting mechanism 30 further includes a ball mounting cavity 32 installed in the middle of the mounting bracket 31. The ball mounting cavity 32 is internally provided with balls 33, and the balls 33 are in rolling contact with the inner wall of the slideway 211. Through this design, the mounting bracket 31 contacts the slideway 211 through the ball mounting cavity 32 and the balls 33. When the mounting bracket 31 moves, the balls 33 are driven by the ball mounting cavity 32 to roll in the slideway 211, thereby achieving the purpose of reducing the friction when the mounting bracket 31 moves.

[0067] After the traction rope connector 22 is moved to a suitable position, it is necessary to limit the position of the push block 36 to avoid accidental touch during use. For example, Figure 6 , Figure 8 and Figure 9 as shown, a tooth row 214 is installed at the bottom of the first slide rail 213, and a locking mechanism 40 cooperating with the tooth row 214 is provided on the sliding table 35 to fix the position of the traction rope connector 22;

[0068] The locking mechanism 40 includes a second hinge shaft 41 installed on the sliding table 35 and a hook 42 rotatably arranged on the second hinge shaft 41. Torsion springs (not shown in the figure) are wound around both ends of the second hinge shaft 41, and the two ends of the torsion spring are respectively connected to the second hinge shaft 41 and the hook 42. The hook 42 can be embedded in the tooth gap of the tooth row 214 to fix the push block 36;

[0069] When it is necessary to release the restriction on the push block 36 so that it can push the sliding table 35 to move on the first slide rail 213, by rotating the hook 42, the hook 42 rotates under the restriction of the second hinge shaft 41 and moves out of the tooth row 214. The restriction of the hook 42 and the tooth row 214 on the sliding table 35 is released, and the push block 36 can push the sliding table 35 to move on the first slide rail 213;

[0070] When the hook 42 rotates, it cooperates with the second hinge shaft 41 to pull the torsion spring. Under the action of the elastic deformation and reset of the torsion spring, the hook 42 reversely resets and re-inserts into the tooth gap of the tooth row 214 after losing the external force that makes it rotate, thereby achieving the purpose of fixing the adjusted sliding table 35;

[0071] Preferably, the locking mechanism 40 further includes an abutting plate 43 provided on the hook 42, a spring telescopic rod 44 provided on the sliding table 35, and a button 46 connected to the spring telescopic rod 44. The spring telescopic rod 44 penetrates through the abutting plate 43, and the top of the button 46 abuts against the abutting plate 43. Pressing the button 46 can cause the spring telescopic rod 44 to contract and push the abutting plate 43, and the abutting plate 43 drives the hook 42 to rotate around the second hinge shaft 41;

[0072] By pushing the button 46 , the button 46 moves under the restriction of the spring telescopic rod 44 and the spring telescopic rod 44 contracts. The abutting plate 43 abutting against the button 46 drives the hook 42 to rotate around the second hinge shaft 41 under the push of the button 46 .

[0073] In order to avoid accidentally touching the button 46 during use, the push block 36 is provided with an annular mounting groove 45 which is in the same height as the button 46. The button 46 is arranged in the mounting groove 45 and penetrates through the mounting groove 45 to be connected with the spring telescopic rod 44. When the lower clamping plate 11 is used, the button 46 is protected by the mounting groove 45, so that the finger cannot touch the button 46 when the lower clamping plate 11 is in the gripping state.

[0074] A groove for fingers to enter is formed on the surface of the mounting slot 45 away from the first hinge shaft 13. When the button 46 needs to be pressed, the gripping posture needs to be actively adjusted to allow the finger to contact the button 46, thereby avoiding accidental touch.

[0075] When the folding traction rope 25 ages after long-term use and cannot be automatically folded after the lower clamping plate 11 and the upper clamping plate 12 are closed, the installation cavity 21 can be removed from the lower clamping plate 11 and the folding traction rope 25 can be replaced. Figure 11 As shown, positioning pins 215 are provided on both sides of the installation cavity 21, and a countersunk hole for installing the installation cavity 21 is opened at the bottom of the lower clamping plate 11. The installation cavity 21 is detachably installed in the countersunk hole through the positioning pins 215, thereby achieving the purpose of disassembling the installation cavity 21 and replacing the folding traction rope 25.

[0076] In order to be able to adjust the position of the slider 24, as Figure 12 As shown, a straight groove penetrating to the outer side of the upper clamping plate 12 is opened on one side of the second slide rail 23, and the position of the slider 24 is adjusted by a positioning mechanism 50. The positioning mechanism 50 includes a connecting rod 51 rotatably mounted on the slider 24 and penetrating the straight groove. A knob 53 is installed at the end of the connecting rod 51. The knob 53 pushes the slider 24 to move through the connecting rod 51.

[0077] By pushing the knob 53 to make it move horizontally along the length direction of the straight groove, the knob 53 drives the connecting rod 51 to move in the straight groove, and the sliding block 24 connected to the connecting rod 51 adjusts its position under the restriction of the second slide rail 23;

[0078] Furthermore, the position of the slider 24 needs to be fixed after the adjustment is completed. Figure 3 , Figure 13 and Figure 15 As shown, a diamond-shaped fastener 52 is sleeved and installed on the surface of the connecting rod 51, and two protrusions are set on the fastener 52. The inner wall of the straight groove opened on the surface of the upper clamping plate 12 is respectively opened with an upper clamping groove 54 and a lower clamping groove 55 that match the protrusions of the fastener 52. The fastener 52 rotates with the connecting rod 51 and is embedded in the upper clamping groove 54 and the lower clamping groove 55 for limiting.

[0079] By rotating the knob 53, the knob 53 drives the connecting rod 51 to rotate under the restriction of the slider 24. At the same time, the two protrusions of the fastener 52 are respectively inserted into the upper card slot 54 and the lower card slot 55 as the connecting rod 51 rotates. Under the restriction of the upper card slot 54 and the lower card slot 55, the fastener 52 can no longer move horizontally along the length direction of the straight groove with the knob 53, and the position of the slider 24 is fixed and completed;

[0080] In order to improve the fixing effect on the slider 24, as Figure 13 and Figure 14 shown, the connecting rod 51 includes a fixed rod 511 connected to the slider 24 and a rotating sleeve rod 513 connected to the fastener 52. An arc-shaped deflection groove 512 is formed on the surface of the fixed rod 511, and a positioning member 514 is arranged on the inner wall of the rotating sleeve rod 513. The positioning member 514 is rotatably arranged in the deflection groove 512 and is in interference fit with the deflection groove 512. When the fastener 52 rotates, the positioning member 514 rotates from one end of the deflection groove 512 to the other end. While restricting the maximum angle of the rotating sleeve rod 513 driving the fastener 52 to rotate, the rotating sleeve rod 513 is restricted by the interference fit between the positioning member 514 and the deflection groove 512, so that it cannot drive the fastener 52 to rotate by itself, and the stability of the fastener 52 in the upper card slot 54 and the lower card slot 55 is improved.

[0081] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical plate spacing adjustable hair straightener and its inventive concept, can make equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A hair straightener with adjustable plate spacing, comprising a hair straightener body (10), wherein the hair straightener body (10) comprises a lower clamping plate (11), an upper clamping plate (12) and a first hinge shaft (13) rotatably connecting the lower clamping plate (11) and the upper clamping plate (12), characterized in that: The lower clamping plate (11) and the upper clamping plate (12) are connected via a limiting mechanism (20), the limiting mechanism (20) comprising a mounting cavity (21) mounted on the lower clamping plate (11) and a second slide rail (23) provided on the upper clamping plate (12), an inclined slide rail (211) and a first slide rail (213) being provided inside the mounting cavity (21), and an adjustment mechanism (30) being slidably embedded on the first slide rail (213); A traction rope connecting member (22) and a sliding block (24) are slidably disposed in the installation cavity (21) and on the second slide rail (23), respectively; a folding traction rope (25) for limiting the adjustable spacing between the lower clamping plate (11) and the upper clamping plate (12) is connected between the traction rope connecting member (22) and the sliding block (24); The adjustment mechanism (30) comprises a mounting frame (31) mounted on the traction rope connecting member (22), the mounting frame (31) and the slider (24) being located at the same vertical height and when the folded traction rope (25) is straightened, the lower clamping plate (11) and the upper clamping plate (12) are unfolded to a maximum angle; When the mounting frame (31) and the slider (24) are located at different vertical heights and the folding traction rope (25) is straightened in advance, the lower clamping plate (11) and the upper clamping plate (12) cannot be unfolded by straightening the folding traction rope (25).

2. The hair straightener with adjustable plate spacing according to claim 1, characterized in that: The mounting frame (31) is fitted with the through groove (212) and a lifting frame (34) is provided on the surface of the mounting frame (31) for sliding. The mounting frame (31) and the lifting frame (34) penetrate the through groove (212) and the lifting frame (34) is connected to a slide table (35) slidably embedded on the first slide rail (213). A push block (36) is installed on the slide table (35) and penetrates the bottom of the mounting cavity (21) and fits the outer edge of the lower clamping plate (11).

3. The hair straightener with adjustable plate spacing according to claim 2, characterized in that: The adjustment mechanism (30) further comprises a ball installation cavity (32) installed in the middle of the installation frame (31), a ball (33) being embedded in the ball installation cavity (32), and the ball (33) rollingly fits against the inner wall of the slideway (211).

4. The hair straightener with adjustable plate spacing according to claim 2, characterized in that: A tooth row (214) is installed at the bottom of the first slide rail (213), and a locking mechanism (40) cooperating with the tooth row (214) is provided on the slide platform (35) to fix the position of the traction rope connecting member (22); The locking mechanism (40) comprises a second hinge shaft (41) mounted on the slide (35) and a hook (42) rotatably arranged on the second hinge shaft (41); torsion springs are wound around both ends of the second hinge shaft (41); both ends of the torsion spring are respectively connected to the second hinge shaft (41) and the hook (42); the hook (42) can be embedded in the tooth gap of the tooth row (214) to fix the push block (36).

5. The hair straightener with adjustable plate spacing according to claim 4, characterized in that: The locking mechanism (40) further comprises an abutment plate (43) arranged on the hook (42), a spring telescopic rod (44) arranged on the slide (35), and a button (46) connected to the spring telescopic rod (44); the spring telescopic rod (44) passes through the abutment plate (43) and the top of the button (46) abuts against the abutment plate (43); pressing the button (46) can cause the spring telescopic rod (44) to contract and push the abutment plate (43); the abutment plate (43) drives the hook (42) to rotate about the second hinge shaft (41).

6. The hair straightener with adjustable plate spacing according to claim 5, characterized in that: The push block (36) is provided with an annular mounting groove (45) having the same height as the button (46); the button (46) is arranged in the mounting groove (45) and penetrates the mounting groove (45) to be connected with the spring telescopic rod (44); when the lower clamping plate (11) is used, the button (46) is protected by the mounting groove (45), so that the button (46) cannot be touched by fingers in a gripping state; A groove for inserting a finger is provided on the surface of the installation slot (45) on one side away from the first hinge shaft (13).

7. The hair straightener with adjustable plate spacing according to claim 2, characterized in that: Positioning pins (215) are provided on both sides of the installation cavity (21), and a countersunk hole for installing the installation cavity (21) is provided at the bottom of the lower clamping plate (11), and the installation cavity (21) is detachably installed in the countersunk hole via the positioning pins (215).

8. The hair straightener with adjustable plate spacing according to claim 1, characterized in that: A straight groove extending through the outer side of the upper clamping plate (12) is formed on one side of the second slide rail (23). The position of the slider (24) is adjusted by a positioning mechanism (50). The positioning mechanism (50) comprises a connecting rod (51) rotatably mounted on the slider (24) and extending through the straight groove. A rotating knob (53) is mounted at the end of the connecting rod (51). The rotating knob (53) pushes the slider (24) to move via the connecting rod (51).

9. The hair straightener with adjustable plate spacing according to claim 8, characterized in that: A diamond-shaped fastener (52) is sleeved and installed on the surface of the connecting rod (51), and two protrusions are arranged on the fastener (52). An upper clamping groove (54) and a lower clamping groove (55) are respectively arranged on the inner wall of the straight groove opened on the surface of the upper clamping plate (12) to cooperate with the protrusions of the fastener (52). The fastener (52) rotates with the connecting rod (51) and is embedded in the upper clamping groove (54) and the lower clamping groove (55) for limiting.

10. The hair straightener with adjustable plate spacing according to claim 8, characterized in that: The connecting rod (51) comprises a fixed rod (511) connected to the slider (24) and a rotating sleeve rod (513) connected to the buckle (52); an arc-shaped deflection groove (512) is provided on the surface of the fixed rod (511); a positioning piece (514) is provided on the inner wall of the rotating sleeve rod (513); the positioning piece (514) is rotatably disposed in the deflection groove (512) and is interference-fitted with the deflection groove (512); when the buckle (52) rotates, the positioning piece (514) rotates from one end of the deflection groove (512) to the other end.

Images