Anti-jamming forward and reverse switching transmission device and hair curling device thereof

Abstract

The utility model relates to the technical field of hairdressing equipment, and in particular to an anti-jamming forward and reverse switching transmission device and a hair curling device thereof; it includes a shell assembly and a reversing assembly installed on the shell assembly, the shell assembly is provided with a rotating part; the reversing assembly has at least two driving parts and a limiting part for limiting the connection between the two driving parts and the rotating part, and the connection between any driving part and the rotating part can change the forward or reverse rotation of the rotating part. Compared with the prior art, the reversing assembly is provided with a limiting part, and the limiting part can be used to limit the stroke of the reversing assembly, so as to ensure that the driving part and the rotating part are not too tightly engaged when they are engaged and connected, thereby avoiding the problem of jamming; when the hair curler is installed with the reversing assembly, it can ensure the reliability and smoothness of the user's forward and reverse switching, so that the user's use experience can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hairdressing equipment, in particular to an anti-jamming forward and reverse switching transmission device and a hair curling device thereof. Background Art

[0002] Hair can not only protect the head, but also be designed into different styles to enhance the beauty of personal image. Among them, using a hair styler is one of the most common methods. In the past, people often had to go to a hair salon to style their hair, but now hair stylers have gradually been integrated into household care products.

[0003] Curling hair (also known as curling irons or curling sticks) is one of the most popular hairstyles nowadays. When people use curling irons to curl their hair, they often need to curl it manually. Generally, when styling hair at home, only the user himself or herself does it.

[0004] For example, Chinese utility model CN211608451U announces a styling tool that can be rotated by manual pressing, comprising a styling part and a handle, a pressing part being provided on the surface of the handle, and a rotating component connected to the pressing part being provided inside the handle; the rotating component comprises a driving rack and a transmission part, the transmission part comprises a rotating shaft, a first gear, a first ratchet, a second ratchet and a second gear, the upper end of the driving rack is connected to the pressing part, the side end of the driving rack is meshed with the first gear, the first gear is meshed with the first ratchet, the second gear is meshed with the second ratchet, the first ratchet and the second gear are respectively limitedly assembled with the rotating shaft, and the second gear is connected to and drives the styling part to rotate.

[0005] The inventors found in the actual research and development process that although this type of curling iron can achieve a mode of forward and reverse rotation to a certain extent; however, when the first gear, the first ratchet, the second ratchet and the second gear structure are switched between forward and reverse rotation, the user applies excessive force during the switching, resulting in excessive engagement between the first gear, the first ratchet, the second ratchet and the second gear structure, thereby causing a jamming problem, which seriously affects the reliability of use and the comfort of switching between forward and reverse rotation.

[0006] Therefore, it is necessary to study a new technical solution to solve the above problems. Summary of the invention

[0007] In view of this, the present invention aims to overcome the deficiencies in the prior art, and its main purpose is to provide an anti-stuck forward and reverse switching transmission device and a curling device thereof, which effectively solves the technical problem in the prior art that when the curling iron is switched forward and reverse, jamming occurs due to excessive force.

[0008] To achieve the above purpose, the utility model adopts the following technical solution: an anti-stuck forward and reverse switching transmission device, comprising

[0009] A housing assembly having a rotating portion; and

[0010] A reversing assembly, mounted on the housing assembly;

[0011] The reversing assembly has at least two driving parts and a limiting part for limiting the connection between the two driving parts and the rotating part. The connection between any one of the driving parts and the rotating part can change the forward or reverse rotation of the rotating part.

[0012] The beneficial effects of the anti-stuck forward and reverse switching transmission device provided by the present application are as follows: compared with the prior art, the reversing component is provided with a limiting portion, and the limiting portion can be used to limit the stroke of the reversing component, thereby ensuring that the driving part and the rotating part are not too tightly engaged when they are engaged and connected, thereby avoiding the problem of jamming; when the curling iron is installed with the reversing component, the reliability and smoothness of the forward and reverse switching of the user can be guaranteed, so that the user's use experience can be further improved.

[0013] As a preferred solution: the reversing assembly includes a first plate body, which can be movably installed on the housing assembly along the first direction and the second direction, and at least two driving parts are arranged on the first plate body at intervals along the first direction; when the first plate body is displaced along the first direction, any driving part can be switched to be connected with the rotating part; when the first plate body is displaced along the second direction, the rotating part can be driven to rotate.

[0014] As a preferred solution: the reversing assembly includes a first plate body and a second plate body, the second plate body can be movably installed on the housing assembly along the first direction, the first plate body can be movably installed on the second plate body along the second direction, and at least two driving parts are arranged on the first plate body at intervals along the first direction; when the second plate body is displaced along the first direction, any driving part can be switched to be connected to the rotating part; when the first plate body is displaced along the second direction, the driving part can drive the rotating part to rotate.

[0015] As a preferred solution: the rotating part is a first gear, and the first gear is rotatably mounted on the housing assembly; the driving part is a first rack, and two first racks are arranged on the first plate body at intervals along the first direction, and the first gear is located between the two first racks.

[0016] As a preferred solution: two limiting parts are arranged in the shell assembly at a distance along the first direction; the first plate body or the second plate body is provided with a first abutting protrusion, the first abutting protrusion is located between the two limiting parts and constitutes a first limiting area, when the first abutting protrusion abuts against any limiting part, the first rack is meshed with the first gear gap.

[0017] As a preferred solution: the height of each convex tooth of the first rack is defined as a first height, and the first height is half of the first limiting area.

[0018] As a preferred solution: the reversing assembly also includes a first fixed plate, the first fixed plate is fixedly installed on the shell assembly, and the limiting part is arranged on the upper surface of the first fixed plate; the second plate body is movably installed on the first fixed plate, and the first abutting protrusion is arranged on the bottom of the second plate body.

[0019] As a preferred solution: the shell assembly is rotatably installed with a toggle cover, and rotating the toggle cover can cause the second plate body to move so as to switch the connection between any driving part and the rotating part; the toggle cover is provided with two first toggle arms, and the two first toggle arms extend downward; first arc-shaped abutting protrusions are respectively provided on both sides of the second plate body, and when the toggle cover rotates clockwise or counterclockwise, the first toggle arms can abut against the first arc-shaped abutting protrusions to cause the second plate body to move.

[0020] As a preferred solution: further comprising a pressing component;

[0021] The pressing assembly includes a first connecting rod, one end of which is pivotally connected to the first plate body;

[0022] A second connecting rod, one end of which is pivotally connected to the other end of the first connecting rod; and the other end of the second connecting rod is pivotally connected to the housing assembly;

[0023] A third connecting rod, one end of which is pivotally connected to a non-end position of the second connecting rod;

[0024] The first pressing member has one end pivotally connected to the housing assembly, and the other end of the third connecting rod is pivotally connected to the first pressing member.

[0025] The present application also provides a curling iron, comprising an anti-stuck forward and reverse switchable transmission device and a curling part, wherein the transmission part is used to drive the curling part to rotate, and the housing assembly is a handle housing.

[0026] Compared with the prior art, the curling iron is provided with an anti-stuck forward and reverse switching transmission device, so that when the user switches the forward and reverse rotation of the curling part, there will be no overly tight meshing connection between the gear and the rack, thus avoiding the occurrence of jamming, thereby improving the smoothness of the forward and reverse rotation of the curling part. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 This is a schematic diagram of a specific structure of an anti-stuck forward and reverse switching transmission device provided in an embodiment of the present application installed on a hair curler;

[0029] Figure 2 yes Figure 1 A partial structural diagram of a forward-reverse switching transmission device with an anti-stuck structure is shown;

[0030] Figure 3 yes Figure 1 A partial structural exploded view of the anti-stuck forward and reverse switching transmission device shown;

[0031] Figure 4 yes Figure 3 A front view of the anti-stuck forward and reverse switching transmission device shown;

[0032] Figure 5 yes Figure 1 A partial structural cross-sectional view of the anti-stuck forward and reverse switching transmission device shown;

[0033] Figure 6 yes Figure 1 The working schematic diagram of the anti-stuck forward and reverse switching transmission device shown;

[0034] Figure 7 yes Figure 1 A further working schematic diagram of the anti-jamming forward and reverse switching transmission device shown.

[0035] Among them, the reference numerals in the figure are:

[0036] 10. Shell assembly; 11. Rotating portion; 12. Toggle cover; 121. First toggle arm;

[0037] 20. Pressing assembly; 21. First connecting rod; 22. Second connecting rod; 23. Third connecting rod; 24. First pressing member;

[0038] 30. Reversing assembly; 301. Driving part; 302. Limiting part; 31. First fixing plate; 311. First limiting member; 312. First groove; 32. Second plate body; 321. First sliding limiting part; 322. Second limiting member; 323. Second groove; 324. First abutting convex part; 325. First arc-shaped abutting convex part; 33. First plate body; 331. Second sliding limiting part;

[0039] 40. Curling department;

[0040] x1, first direction; y1, second direction; f1, first restricted area; h1, first height. DETAILED DESCRIPTION

[0041] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0042] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0043] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0045] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0046] Please also read Figures 1 to 7 The anti-jamming forward-reverse switching transmission device provided in the embodiment of the present application is now described. The anti-jamming forward-reverse switching transmission device includes: a housing component 10, a pressing component 20 and a reversing component 30.

[0047] The shell assembly 10 is provided with a rotating part 11, and the pressing assembly 20 is movably or rotatably arranged on the shell assembly 10 along the pressing direction; the reversing assembly 30 is installed on the shell assembly 10, and the reversing assembly 30 is respectively connected to the rotating part 11 and the pressing assembly 20; the reversing assembly 30 is provided with at least two driving parts 301 and a limiting part 302 for limiting the gap engagement between the two driving parts 301 and the rotating part 11, and the connection between any driving part 301 and the rotating part 11 can change the forward or reverse rotation of the rotating part 11.

[0048] Specifically, the reversing assembly 30 is provided with a limiting portion 302, and the limiting portion 302 can be used to limit the travel of the reversing assembly 30, so as to ensure that the driving portion 301 and the rotating portion 11 are not too tightly engaged when they are engaged and connected, thereby avoiding the problem of jamming; when the curling iron is installed with the reversing assembly 30, it can ensure the reliability and smoothness of the user's forward and reverse switching, so that the user's experience can be further improved.

[0049] In some embodiments of the present application, the reversing assembly 30 has at least a first plate 33, and the first plate 33 can be movably mounted on the housing assembly 10 along the first direction x1 and the second direction y1, and at least two driving parts 301 are arranged on the first plate 33 at intervals along the first direction x1. When the first plate 33 is displaced along the first direction x1, any driving part can be switched to be connected with the rotating part; when the first plate is displaced along the second direction y1, the rotating part can be rotated by the driving part. Since the two driving parts are arranged on the first plate at intervals along the first direction, switching different driving parts to be connected with the rotating part can drive the rotating part to rotate forward or reverse.

[0050] Exemplarily, when the first plate 33 is displaced along the first direction x1, one of the driving parts can be connected to the rotating part. At this time, the first plate 33 is displaced along the second direction y1, which can drive the rotating part to rotate forward; correspondingly, when the first plate 33 is displaced along the first direction x1, the other driving part is connected to the rotating part. At this time, the first plate 33 is displaced along the second direction y1, which can drive the rotating part to rotate reversely.

[0051] Please also read Figures 2 to 4 In some other embodiments of the present application, the reversing assembly includes a first plate and a second plate. The first plate 33 can be movably installed on the housing assembly 10 along the first direction x1 and the second direction y1. At least two driving parts 301 are arranged on the first plate 33 at intervals along the first direction x1; when the first plate 33 is displaced along the first direction x1, any driving part 301 can be switched to be connected to the rotating part 11; when the first plate 33 is displaced along the second direction y1, the rotating part 11 can be driven to rotate.

[0052] It can be understood that when the reversing assembly has only the first plate body, the first plate body can be displaced in the first direction and the second direction at the same time. By displacing the first plate body in the first direction, different driving parts are switched to be connected with the rotating part to achieve forward or reverse rotation of the driving rotating part; by displacing the first plate body in the second direction, the rotating part can be driven to rotate. When the reversing assembly has the first plate body and the second plate body, the rotating part is driven to rotate by the first plate body that is displaced only in the second direction, and different driving parts are switched to be connected with the rotating part by the second plate body that is displaced only in the first direction.

[0053] In more detail, the reversing assembly further includes a first fixed plate, which is fixedly mounted on the housing assembly. The second plate body 32 is movably mounted on the first fixed plate 31 along the first direction x1, and the first plate body 33 is movably mounted on the second plate body 32 along the second direction y1; the rotating part 11 is a first gear, which is rotatably mounted on the housing assembly 10; the driving part 301 is two first racks, which are arranged on the first plate body 33 at a spacing along the first direction x1, and the first gear is located between the two first racks.

[0054] For example, the first direction is defined as forward and backward movement, and the second direction is defined as left and right movement; therefore, the two first racks are arranged at a front-to-back spacing, and the first gear is located between the two first racks. When the user switches between forward and reverse rotation, the second plate 32 is moved forward a certain distance, so that the first rack located at the rear side can be meshed and connected with the first gear, thereby driving the first gear to rotate counterclockwise, i.e. reverse rotation; when the user moves the second plate 32 backward a certain distance, the first rack located at the front side can be meshed and connected with the first gear, thereby driving the first gear to rotate clockwise, i.e. forward rotation.

[0055] It should be noted that the convex teeth of the first gear are the same as the convex teeth of the first rack, ensuring that after the first gear is meshed and connected with the first rack, the first plate 33 moves left and right along the second direction to drive the first gear to rotate forward or reverse.

[0056] It is understandable that the structure of the rotating part 11 and the driving part 301 is not limited to the meshing of a rack and a gear, but may also be the meshing of a worm and a gear, or a screw and a gear.

[0057] Please also read Figures 2 to 5 In some other embodiments of the present application, a first limiting member 311 is provided on the upper surface of the first fixing plate 31, and first grooves 312 are provided on both sides of the first limiting member 311; a second plate body 32 is movably mounted on the upper surface of the first limiting member 311, and first sliding limiting portions 321 movable in the first grooves 312 are provided on both sides of the second plate body 32. A second limiting member 322 is provided on the second plate body 32, and second grooves 323 are provided on both sides of the second limiting member 322; a first plate body 33 is movably mounted on the upper surface of the second limiting member 322, and second sliding limiting portions 331 movable in the second grooves 323 are provided on both sides of the first plate body 33.

[0058] Specifically, by providing the first limiting member 311 for movably mounting the second plate 32, and by providing the second limiting member 322 for movably mounting the first plate 33, the first fixing plate 31, the first limiting member 311, the second plate 32, the second limiting member 322 and the first plate 33 can be stacked from bottom to top, so that the entire reversing assembly 30 becomes more compact and does not occupy too much space, so that it is easy to be installed in hairdressers of different sizes to switch the components in forward and reverse directions.

[0059] In some embodiments of the present application, two limiting portions are arranged at intervals along the first direction on the housing assembly; when the reversing assembly is provided with only the first plate body, a first abutting protrusion is arranged at the bottom of the first plate body, and the first abutting protrusion is located between the two limiting portions. When the reversing assembly has the first plate body and the second plate body, a first abutting protrusion is arranged at the bottom of the second plate body, and the first abutting protrusion is displaced between the two limiting portions. When the first abutting protrusion abuts against any limiting portion, the first rack is meshed with the first gear gap.

[0060] It should be noted that the limiting portion may be provided on the housing assembly or on the upper surface of the first fixing plate.

[0061] Exemplarily, the bottom of the second plate 32 is provided with a first abutting protrusion 324, and when the second plate 32 is displaced along the first direction x1, the first abutting protrusion 324 can abut against any limiting portion 302. When one side of the first abutting protrusion 324 abuts against one limiting portion 302, the other side of the first abutting protrusion 324 and the other limiting portion 302 form a first limiting region f1.

[0062] In more detail, by setting the size of the first limiting area f1, the displacement of the second plate 32 is limited, thereby ensuring that each first rack and the first gear are in clearance meshing, preventing the first rack and the first gear from being too tightly meshed and causing jamming when the user switches forward and reverse, thereby improving the reliability and smoothness of the reversing assembly 30 when in use.

[0063] For example, the first height h1 is set between the tooth top surface and the tooth bottom surface of the convex tooth of the first rack, and the size of the first restricted area f1 is half of the first height, or within the numerical range of half of the height. For example, if the first height h1 is 6 mm, the size of the first area f1 needs to be between 3 mm and 6 mm; to ensure that after the first rack is meshed and connected with the first gear, the transmission efficiency is not reduced, and at the same time, it can also ensure that there is no over-tight meshing.

[0064] Please also read Figure 1 , Figure 6 to Figure 7The housing assembly 10 is rotatably mounted with a toggle cover 12. Rotating the toggle cover 12 can cause the second plate 32 to move, so as to switch the connection between any driving part 301 and the rotating part 11. The toggle cover 12 is provided with two first toggle arms 121, which extend downward; first arc-shaped abutting protrusions 325 are respectively provided on both sides of the second plate 32. When the toggle cover 12 rotates clockwise or counterclockwise, the first toggle arms 121 can abut against the first arc-shaped abutting protrusions 325 to cause the second plate 32 to move.

[0065] It should be noted here that, with the central direction of the toggle cover 12 as the rotation center point, the two first toggle arms 121 are installed on the lower surface of the toggle cover 12 and extend downward, but the first toggle arms 121 are not arranged at equal intervals from the rotation center point, but are eccentrically arranged from the rotation center point, so that one of the first toggle arms 121 acts on the first arc-shaped abutment protrusion 325 to allow the second plate body 32 to move forward in the first direction, or the other toggle arm acts on the other first arc-shaped abutment protrusion to allow the second plate body 32 to move backward in the first direction.

[0066] Please also read Figure 1 The pressing assembly 20 includes a first connecting rod 21, a second connecting rod 22, a third connecting rod 23 and a first pressing piece 24; one end of the first connecting rod 21 is pivoted to the first plate body 33, one end of the second connecting rod 22 is pivoted to the other end of the first connecting rod 21, and the other end of the second connecting rod 22 is pivoted to the shell assembly 10; one end of the third connecting rod 23 is pivoted to a non-end position of the second connecting rod 22, one end of the first pressing piece 24 is pivoted to the shell assembly 10, and the other end of the third connecting rod 23 is pivoted to the first pressing piece 24.

[0067] The present application also provides a curling iron, which is equipped with an anti-jamming forward and reverse switching transmission device and a curling part 40. Specifically, the housing assembly 10 serves as a handle housing, the transmission part can be rotatably mounted on the handle housing, the curling part 40 can be rotatably mounted on the handle housing, and the transmission part and the curling part 40 are fixedly connected together, and when the transmission part rotates, the curling part 40 can be synchronously driven to rotate.

[0068] Specifically, when the user uses the curling iron, he first rotates the toggle cover 12 according to the need for forward or reverse rotation, and uses the toggle cover 12 to toggle the second plate 32 to move, and switches the meshing connection between the corresponding first rack and the first gear to achieve forward or reverse rotation of the curling part 40; when the first rack is meshed with the first gear, the user only needs to press the pressing component 20 to drive the first plate 33 to move, so as to drive the rotating part 11 to rotate, and cooperate with the user to complete the curling operation.

[0069] The above are only preferred embodiments of the present invention, and only specifically describe the technical principles of the present invention. These descriptions are only for the purpose of explaining the principles of the present invention, and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanation here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention, and other specific implementation methods of the present invention that can be associated with by technicians in this field without creative labor, should be included in the scope of protection of the present invention.

Claims

1. An anti-jamming forward and reverse switching transmission device, comprising: A housing assembly (10) is provided with a rotating portion (11); and The reversing assembly (30) is mounted on the housing assembly (10); and is characterized by: The reversing assembly (30) comprises at least two driving parts (301) and a limiting part (302) for limiting the connection between the two driving parts (301) and the rotating part (11), and the connection between any one of the driving parts (301) and the rotating part (11) can change the forward or reverse rotation of the rotating part (11).

2. The anti-jamming forward and reverse switching transmission device according to claim 1, characterized in that: The reversing assembly (30) comprises a first plate body (33), the first plate body (33) being movably mounted on the housing assembly (10) along a first direction (x1) and a second direction (y1), and the at least two driving parts (301) being arranged on the first plate body (33) at intervals along the first direction (x1); When the first plate (33) is displaced in a first direction (x1), any one of the driving parts (301) can be switched to be connected with the rotating part (11); when the first plate (33) is displaced in a second direction (y1), the rotating part (11) can be driven to rotate.

3. The anti-jamming forward and reverse switching transmission device according to claim 1, characterized in that: The reversing assembly (30) comprises a first plate (33) and a second plate (32); the second plate (32) can be movably mounted on the housing assembly (10) along a first direction (x1); the first plate (33) can be movably mounted on the second plate (32) along a second direction (y1); and the at least two driving parts (301) are arranged on the first plate (33) at intervals along the first direction (x1); When the second plate (32) is displaced along a first direction (x1), any one of the driving parts (301) can be switched to be connected with the rotating part (11); when the first plate (33) is displaced along a second direction (y1), the driving part (301) can drive the rotating part (11) to rotate.

4. The anti-jamming forward and reverse switching transmission device according to claim 2 or 3, characterized in that: The rotating part (11) is a first gear, and the first gear is rotatably mounted on the housing assembly (10); The driving part (301) is a first rack, two first racks are arranged on the first plate body (33) at a distance along a first direction (x1), and the first gear is located between the two first racks.

5. The anti-jamming forward and reverse switching transmission device according to claim 4, characterized in that: The two limiting portions (302) are arranged on the housing assembly (10) at a distance along a first direction; The first plate body (33) or the second plate body (32) is provided with a first abutting protrusion (324), the first abutting protrusion (324) is located between the two limiting parts (302) and constitutes a first limiting area (f1), and when the first abutting protrusion (324) abuts against any limiting part (302), the first rack is gap-engaged with the first gear.

6. The anti-jamming forward and reverse switching transmission device according to claim 5, characterized in that: The height of each protruding tooth of the first rack is defined as a first height (h1), and the first height (h1) is half of the first limiting area (f1).

7. The anti-jamming forward and reverse switching transmission device according to claim 5 or 6, characterized in that: The reversing assembly (30) further comprises a first fixing plate (31), the first fixing plate (31) being fixedly mounted on the housing assembly (10), the limiting portion (302) being arranged on the upper surface of the first fixing plate (31); the second plate body (32) being movably mounted on the first fixing plate (31), the first abutting protrusion (324) being arranged on the bottom of the second plate body (32).

8. The anti-jamming forward and reverse switching transmission device according to claim 4, characterized in that: The housing assembly (10) is rotatably mounted with a toggle cover (12), and the rotation of the toggle cover (12) can cause the second plate (32) to move, so as to switch the connection between any one of the driving parts (301) and the rotating part (11); The toggle cover (12) is provided with two first toggle arms (121), and the two first toggle arms (121) extend downwards; First arc-shaped abutting convex parts (325) are respectively provided on both sides of the second plate body (32); when the toggle cover (12) rotates clockwise or counterclockwise, the first toggle arm (121) can abut against the first arc-shaped abutting convex parts (325) to cause the second plate body (32) to move.

9. The anti-jamming forward and reverse switching transmission device according to claim 2 or 3, characterized in that: Also includes a pressing assembly (20); The pressing assembly (20) comprises a first connecting rod (21), one end of the first connecting rod (21) being pivotally connected to the first plate body (33); A second connecting rod (22), one end of the second connecting rod (22) being pivotally connected to the other end of the first connecting rod (21); the other end of the second connecting rod (22) being pivotally connected to the housing assembly (10); A third connecting rod (23), one end of the third connecting rod (23) being pivotally connected to a non-end position of the second connecting rod (22); A first pressing member (24), one end of the first pressing member (24) is pivotally connected to the housing assembly (10), and the other end of the third connecting rod (23) is pivotally connected to the first pressing member (24).

10. A hair curler, characterized in that: It comprises an anti-jamming forward and reverse switchable transmission device as claimed in any one of claims 1 to 9 and a curling part (40), wherein the rotating part (11) is used to drive the curling part (40) to rotate, and the housing assembly (10) is a handle housing.

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