Locking mechanism

Abstract

The utility model discloses a locking mechanism, belongs to clothes ironing equipment, aims to solve the problems that a locking mechanism in the prior art is complex in structure and inconvenient to operate, and is provided with a sliding rod, a locking piece, an unlocking piece and a handle, the locking piece is sleeved on the sliding rod through a through hole and locks the sliding rod by means of elastic force, and the unlocking piece is in linkage fit with the handle and the locking piece. The unlocking piece and the locking piece are linked through the control handle so that the locking piece can unlock the sliding rod. Stepless adjustment of movement of the sliding rod in the through hole is achieved, the ironing plate can be locked at the horizontal position, the vertical position and any inclination angle between the horizontal position and the vertical position, the gear does not need to be searched deliberately during operation, positioning and locking are easy, and operation is easy. The sliding rod is locked by means of elastic force, and is not loosened or shaken in a locking state, and locking is reliable. And parts are few and compact, the structure is simple, and the manufacturing cost is low.

Description

Technical Field

[0001] The utility model belongs to clothing ironing equipment, in particular to a locking mechanism for locking an ironing board in a required posture. Background Art

[0002] The utility model patent application with application publication number CN117449077A discloses a steam garment steamer with adjustable ironing board tilt angle, and the utility model patent application with application publication number CN117845594A discloses an ironing board and garment steamer with changeable posture. The ironing boards disclosed in the two patent documents have changeable tilt angles and can be positioned in a desired posture to meet different ironing needs.

[0003] The ironing boards disclosed in the above two patent documents are representative examples. The positioning of such an ironing board with adjustable tilt angle at a desired posture generally relies on a locking mechanism. Such an ironing board needs a locking mechanism that is simple in structure, reliable in locking, easy to operate, and capable of locking the ironing board at a horizontal position, an upright position, or any tilt angle between the horizontal position and the upright position. Utility Model Content

[0004] The technical problem to be solved and the technical task proposed by the utility model are to overcome the defects of the locking mechanism of the prior art that the structure is complex and the operation is inconvenient, and to provide a locking mechanism which has a simple structure, reliable locking, is easy to operate and can lock the ironing board in a horizontal position, an upright position and any inclined angle between the horizontal position and the upright position.

[0005] In order to achieve the above-mentioned purpose, the locking mechanism of the utility model comprises:

[0006] Slide bar;

[0007] A locking member, which is sleeved on the slide bar through the through hole and locks the slide bar by elastic force;

[0008] An unlocking member, which cooperates with the handle and the locking member;

[0009] The operating handle links the unlocking member and the locking member to prompt the locking member to unlock the slide bar.

[0010] Since the locking member is sleeved on the slide bar through the through hole and locks the slide bar by elastic force, the locking member can be sleeved on the through hole of the slide bar and lock the slide bar by elastic force, so as to realize stepless adjustment of the movement of the slide bar in the through hole. Correspondingly, no matter the ironing board is rotated to any tilt angle between upright and horizontal, the ironing board can be locked in place.

[0011] The locking mechanism does not require deliberate search for gear positions during operation, and is easy to locate and lock, and is easy to operate.

[0012] The locking mechanism locks the slide bar by elastic force, and the slide bar does not loosen or shake in the locked state, and the locking is reliable.

[0013] The locking mechanism has few parts, is compact and has a simple structure.

[0014] Preferably, the locking member locks the slide bar by clamping the slide bar at the edge of its through hole, and the locking member unlocks the slide bar by releasing the slide bar at the edge of its through hole. The structure is simple and compact, and the locking and unlocking actions are sensitive.

[0015] Preferably, the locking mechanism further comprises a linkage member, which is connected between the handle and the unlocking member to realize the linkage between the handle and the unlocking member. Accordingly, the handle can be arranged at a position suitable for operation, such as placing the handle at one end of the ironing board. When operating, the ironing board can be adjusted by holding one end of the ironing board to flip the ironing board and operate the handle at the same time, so that the ironing board can be adjusted with one hand, which is convenient to operate.

[0016] Preferably, the unlocking member is rotatably configured and toggled with the locking member. Such toggling cooperation can damp and buffer the unlocking and locking of the slide bar, and will not cause loss of control due to sudden unlocking or sudden locking.

[0017] Preferably, the locking member comprises a first locking member and a second locking member, and the locking directions of the first locking member and the second locking member are opposite. Accordingly, the slide bar can be locked in two directions, thereby stably maintaining the ironing board at a desired angle.

[0018] Preferably, the unlocking member is configured by rotating the pin and is located between the first locking member and the second locking member. Accordingly, the first locking member and the second locking member are unlocked simultaneously by rotating the unlocking member, which simplifies the structure and facilitates operation.

[0019] Preferably, one end of the slide bar is connected to the third axis. Accordingly, when the angle of the ironing board is changed, the slide bar is moved together with the third axis to keep synchronization, thereby ensuring smooth movement of the slide bar.

[0020] Preferably, the locking member is an elastic member, a part of the locking member is fixed, and a part of the locking member provided with the through hole can be elastically deformed and provide elastic force for locking the sliding rod. Accordingly, the structure can be simplified.

[0021] Preferably, an auxiliary elastic element acts on the locking member, and the auxiliary elastic element provides auxiliary elastic force for locking the sliding rod. The auxiliary elastic force is used to compensate for the insufficient elastic force of the elastic locking member itself.

[0022] Preferably, the locking member is movably configured, and a first elastic element acts on the locking member, and the first elastic element provides elastic force for locking the sliding rod. Since the elastic force of the locking member to lock the sliding rod will be fed back to the handle when the handle is operated, the elastic force will affect the comfort of operating the handle. When the first elastic element provides the elastic force to lock the sliding rod, it can provide a long-lasting moderate elastic force to improve the comfort of operating the handle. In particular, since the locking member locks the sliding rod by elastic force, when the first elastic element provides the elastic force, the reliability of the locking member locking the sliding rod can be guaranteed.

[0023] Preferably, the locking member and the unlocking member are located in a fixed box, thereby ensuring the cooperation between the locking member and the unlocking member and avoiding interference from external factors.

[0024] Preferably, a second elastic element acts on the handle to assist the handle in resetting after being operated.

[0025] Preferably, the slide bar is arranged on the back of the ironing board and extends along the length direction of the ironing board; the locking member is fixedly arranged on the back of the ironing board, thereby occupying a small space and not affecting ironing.

[0026] Preferably, the locking member and the unlocking member are located in the middle of the back of the ironing board, so that the locking mechanism can be easily arranged relative to the ironing board and the locking mechanism can reliably lock the ironing board.

[0027] Preferably, the handle is located at one end of the ironing board for easy operation.

[0028] Preferably, a rotatable pin is provided, one end of which extends to a side of the ironing board, and the unlocking member and the handle are both fixed to the pin, so that the unlocking member is rotated synchronously with the handle. Accordingly, the handle can be arranged on the side of the ironing board for easy operation. When the ironing board is long, it is difficult for some users to operate the handle at the end of the ironing board, and the user will have to approach the handle and leave the middle part of the ironing board, making it difficult to balance operating the handle and stabilizing the ironing board. When the handle is arranged on the side of the ironing board, especially when the handle is arranged on the side of the middle part of the length direction of the ironing board, the user can stand in the middle part of the ironing board to operate the handle and balance the stability of the ironing board.

[0029] The utility model configures a sliding rod, a locking piece, an unlocking piece and a handle, so that the locking piece is sleeved on the sliding rod through a through hole and locks the sliding rod by elastic force, so that the unlocking piece, the handle and the locking piece are linked to each other, and the locking piece is prompted to unlock the sliding rod by operating the handle to link the unlocking piece and the locking piece. A locking mechanism is provided which has a simple structure, reliable locking, is easy to operate, and can lock the ironing board in a horizontal position, an upright position, or any inclined angle between the horizontal position and the upright position.

[0030] The utility model realizes stepless adjustment of the movement of the slide bar in the through hole, and there is no need to deliberately find the gear position during operation. The positioning and locking are easy and easy to operate. The slide bar is locked by elastic force, and it does not loosen or shake in the locked state, and the locking is reliable. The parts are few and compact, the structure is simple, and the manufacturing cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is an isometric view of the ironing board adjustment mechanism of the utility model;

[0032] Figure 2 for Figure 1 An orthographic schematic diagram of the ironing board adjustment mechanism shown;

[0033] Figure 3 for Figure 1-2 The structural exploded diagram of the ironing board adjustment mechanism shown;

[0034] Figure 4 for Figure 3 A schematic diagram of the ironing board adjustment mechanism from another perspective;

[0035] Figure 5 for Figure 2 AA section view;

[0036] Figure 6 for Figure 5 A schematic diagram of the model of the triangle defined by the base frame, the connecting rod and the ironing board in the state shown;

[0037] Figure 7 for Figure 5 A schematic diagram of the ironing board in the state shown being adjusted to be flat;

[0038] Figure 8 for Figure 7 A schematic diagram of the model of the triangle defined by the base frame, the connecting rod and the ironing board in the state shown;

[0039] Fig. 9 for Figure 5 A schematic diagram of the ironing board in the state shown being adjusted to be flat;

[0040] Fig.10 for Fig. 9 A schematic diagram of the model of the triangle defined by the base frame, the connecting rod and the ironing board in the state shown;

[0041] Fig.11 It is a schematic diagram of the structural decomposition of the locking mechanism of the utility model;

[0042] Fig.12 for Fig.11 A schematic diagram of the locking mechanism shown in another perspective;

[0043] Fig.13It is a schematic diagram of an orthographic projection of the locking mechanism of the utility model from one viewing angle;

[0044] Fig.14 for Fig.13 BB section view;

[0045] Fig.15 for Fig.14 A schematic diagram showing the locking mechanism in an unlocked state;

[0046] Fig.16 This is a schematic diagram of a garment steamer according to an embodiment of the present invention;

[0047] Description of the numbers in the figure:

[0048] 100 Ironing board adjustment mechanism:

[0049] 110 ironing board, 111 sliding structure;

[0050] 120 degree angle adjustment mechanism,

[0051] 121 base frame, 1211 support portion, 1212 first extension portion, 1213 second extension portion,

[0052] 122 connecting rod, 1221 avoidance part,

[0053] a is the first axis, b is the second axis, c is the third axis, A is the axial projection point of the first axis, B is the axial projection point of the second axis, C is the axial projection point of the third axis,

[0054] 130 locking mechanism: 131 handle, 132 slide bar, 133a first locking member, 133b second locking member, 133c folding edge, 134 unlocking member, 1341 pin shaft, 135 linkage member, 136 box, 1361 seat, 1362 cover;

[0055] 200 main unit, 300 support structure, 400 steam pipe, 500 handheld ironing head. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0057] The terms "including" and "having" and any variations thereof in the specification and claims of the present utility model are intended to cover non-exclusive inclusions. For example, a method or product comprising a series of technical features is not necessarily limited to those technical features clearly listed, but may also include other technical features that are not clearly listed and can be included in the method or product.

[0058] In the description of the present invention, it should be understood that the terms "front", "rear", "up", "down", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Among them, "front" and "rear", "up" and "down", "left" and "right" are opposite directions.

[0059] In the description of the present utility model, it is necessary to understand that the technical features defined by the terms "first", "second" and the like with sequential concepts are only for the purpose of clearly describing the defined technical features so that the defined technical features can be clearly distinguished from other technical features, but do not represent such naming in actual implementation, and therefore cannot be understood as a limitation of the present utility model.

[0060] The present invention is described in detail below in conjunction with specific embodiments and drawings.

[0061] The ironing board adjustment mechanism of one embodiment of the utility model is Figures 1 to 15 The locking mechanism of the present invention is shown and explained in the description of the ironing board adjustment mechanism.

[0062] like Figures 1 to 4 , Figure 5 , Figure 7 , Fig. 9 As shown, the ironing board adjustment mechanism includes an ironing board 110 , an angle adjustment mechanism 120 and a locking mechanism 130 .

[0063] The ironing board 110 is in the shape of a plate, preferably made of plastic. In order to increase the strength of the ironing board and reduce the weight, through holes are provided on the ironing board, ribs are provided on the back of the ironing board, and side edges are provided on the edges of the ironing board. The through holes can increase the permeability of steam. When ironing, a cloth cover can be put on the ironing board. Each side edge has a guide groove as a sliding structure 111.

[0064] The angle adjustment mechanism 120 includes a base frame 121 and a connecting rod 122. The base frame 121 is rotatably connected to the ironing board 110 via a first axis a, the base frame 121 is rotatably connected to a first end of the connecting rod 122 via a second axis b, and the second end of the connecting rod 122 is slidably connected to a sliding structure 111 of the ironing board via a third axis c. An axial projection point A of the first axis, an axial projection point B of the second axis, and an axial projection point C of the third axis are respectively located at the vertices of a triangle ABC, wherein the ironing board rotates around the first axis a to adjust its tilt angle, and the rotation of the ironing board around the first axis a causes the connecting rod 122 to rotate around the second axis b and the third axis c to slide along the sliding structure 111 to change the shape of the triangle ABC.

[0065] Based on this structure, the first side AB of the triangle determined by the first axis a and the second axis b is fixed in position and unchanged in length; the second side BC of the triangle determined by the second axis b and the third axis c, i.e. the connecting rod, is unchanged in length and can be changed in position; the third side AC of the triangle determined by the first axis a and the third axis c can change in length and position. Figure 5 , Figure 6 As shown, the ironing board is tilted. Figure 5 , Figure 6 In the state shown, the ironing board 110 rotates clockwise around the first axis a to achieve Figure 7 , Figure 8 In the flat state shown in FIG. 1 , the ironing board 110 can rotate counterclockwise around the first axis a to achieve Fig. 9 , Fig.10 The ironing board is in the upright state shown. Furthermore, the ironing board is in the upright state, horizontal state, and any inclined angle between the upright state and the horizontal state as the shape of the triangle changes. The distance between the first axis a and the third axis c, that is, the side AC of the triangle ABC, gradually increases as the ironing board changes from the upright state to the horizontal state. When the ironing board is upright, the first axis a is located below the third axis c.

[0066] In order to increase the sliding flexibility of the third shaft c and the sliding structure 111, bearings are installed at both ends of the third shaft, and the bearings are located in the guide groove of the sliding structure. Moreover, the length of the guide groove is configured such that when the ironing board is upright, the third shaft c is located at one end of the sliding structure ( Fig. 9 , Fig.10 The third axis is located at the other end of the sliding structure when the ironing board is placed flat ( Figure 7 , Figure 8 right end as shown).

[0067] Moreover, the base frame 121 has a support portion 1211, a first extension portion 1212 and a second extension portion 1213. The first extension portion 1212 extends forward from the support portion 1211, and the second extension portion 1213 extends backward from the support portion 1212. The first axis a is located at the first extension portion 1212, and the second axis b is located at the second extension portion 1213. When the ironing board is placed horizontally, the first axis a is located at the front side of the support portion 1211, and the third axis c is located at the rear side of the support portion 1211, thereby ensuring that the center of gravity of the ironing board is as close to the support portion 1211 as possible, so that the ironing board is stable. The first extension portion 1212 is higher than the second extension portion 1213, the connecting rod is trapezoidal and its middle part is hollow, and the middle part serves as an avoidance portion 1221. When the ironing board is upright, the upper end of the support portion 1211 is located at the avoidance portion 1221. The first axis a and the third axis c are both connected to the back of the ironing board 110. When the ironing board is upright, the front side faces forward, and when the ironing board is flat, the front side faces upward. Figure 5 , Figure 7 , Fig. 9 In the menu, left is forward and right is backward. Figure 5-6 The tilt shown Figure 7-8 Shown flat and Figure 9-10 When changing between the upright and other postures shown, it can be smooth and without interference. Taking the horizontal plane as the reference, the inclination angle of the ironing board when it is flat is 0 degrees, and the inclination angle of the ironing board when it is upright is 90 degrees. The inclination angle of the ironing board can be adjusted anywhere between 0-90 degrees.

[0068] The locking mechanism 130 is mounted on the back of the ironing board 110, and is used to lock and fix the triangle ABC to prevent the ironing board from rotating around the first axis, thereby fixing the ironing board at a desired angle. In the illustrated structure, the locking mechanism prevents the triangle from deforming by preventing the length of the side AC of the triangle ABC from changing.

[0069] Specifically, the locking mechanism 130 includes a handle 131, and the handle is manipulated to release the locking mechanism from locking the triangle to allow the ironing board to rotate around the first axis. The locking mechanism further includes a slide bar 132, a locking member, and an unlocking member 134. The slide bar 132 is arranged on the back of the ironing board 110 and extends along the length direction of the ironing board. One end of the slide bar 132 is sleeved on the third axis c. The locking member is fixed to the back of the ironing board through its folded edge 133c, and the rest of the locking member extends in a direction away from the ironing board and is provided with a through hole. The extended part can be elastically deformed and provide elastic force to lock the slide bar. The locking member is sleeved on the slide bar through the through hole and locks the slide bar and the triangle by elastic force.

[0070] The unlocking member 134 is linked with the handle 131 and the locking member. In addition, the unlocking member 134 is rotatably arranged on the back of the ironing board and is toggled with the locking member. The handle is operated to link the unlocking member and the locking member so that the locking member unlocks the slide bar. The edge of the through hole clamps the slide bar to make the locking member lock the slide bar, and the edge of the through hole releases the slide bar to make the locking member unlock the slide bar.

[0071] The operation handle links the unlocking member and the locking member so that the locking member unlocks the slide bar can be achieved in any of the following ways:

[0072] First, as shown in the figure, a linkage 135 is configured, that is, the locking mechanism also includes a linkage, the handle 131 is located at one end of the ironing board 110, and the linkage 135 is connected between the handle 131 and the unlocking member 134 to realize the linkage between the handle and the unlocking member. The linkage shown in the figure is in the shape of a rod, and the unlocking member is rotated by pushing or pulling the linkage with the handle. In other embodiments, the linkage can also be a traction rope, such as a steel wire rope, and the unlocking member is rotated by pulling the linkage with the handle.

[0073] Second, the handle is configured to rotate synchronously with the unlocking member coaxially: as shown in the figure, since the unlocking member 134 rotates around the pin 1341, one end of the pin is extended to one side of the ironing board, and the unlocking member 134 and the handle 131 are both fixed to the pin 1341. The pin is configured to rotate, and the unlocking member can be rotated synchronously with the handle. Since the locking member and the unlocking member are located in the middle of the back of the ironing board. Since the locking member and the unlocking member are located in the middle of the back of the ironing board, when the ironing board is rotated, one hand can hold the handle to unlock it, and the other hand can hold one end of the ironing board to flip it. This operation method of adjusting the ironing board with two hands can ensure that the ironing board is stable and does not tip over.

[0074] Figure 11-15 In the embodiment, the locking member includes a first locking member 133a and a second locking member 133b, and the locking directions of the first locking member and the second locking member are opposite. Fig.14 In the state where the first locking member and the second locking member lock the slide bar, the first locking member 133a deflects relative to the slide bar under its own elastic force, so that the upper and lower edges of its through hole clamp the slide bar 132 to prevent the slide bar from moving to the upper right, and the second locking member 133b deflects relative to the slide bar under its own elastic force, so that the upper and lower edges of its through hole clamp the slide bar 132 to prevent the slide bar from moving to the lower left, and the ironing board cannot be rotated to adjust the tilt angle of the ironing board. When the handle is operated to rotate the unlocking member, as shown in FIG. Fig.15As shown, the unlocking member 134 pushes the first locking member 133a and the second locking member 133b to both sides, the first locking member 133a and the second locking member 133b deflect relative to the slide bar to a smaller extent, the upper edge and the lower edge of the through hole of the two members release the slide bar, and the first locking member and the second locking member are unlocked from the slide bar, and the ironing board is rotated accordingly to adjust the tilt angle of the ironing board. Therefore, in the natural state, the ironing board is locked and fixed in an upright, horizontal or any tilt angle by the locking mechanism. Operate the handle to unlock, and then the ironing board can be rotated to adjust the tilt angle of the ironing board. After the ironing board is adjusted to the desired tilt angle, release the handle, and the locking mechanism locks the ironing board in this position.

[0075] Figure 11-15 In the structure shown, the first locking member 133a and the second locking member 133b are both elastic members such as leaf springs, thereby providing elastic force for locking the slide bar. In order to compensate for the insufficient elastic force of the elastic locking member itself, in other embodiments, an auxiliary elastic element such as a torsion spring, leaf spring, etc. acts on the locking member, and the auxiliary elastic element provides auxiliary elastic force for locking the slide bar.

[0076] In other embodiments, the fixed locking member can be replaced by a movable locking member, in which case the locking member is sleeved on the slide bar like a gasket, and the first elastic element acts on the locking member, and the first elastic element provides elastic force to lock the slide bar. Moreover, the locking member can be elastic or rigid, and can be multiple pieces stacked.

[0077] The first locking member 133a and the second locking member 133b are both fixed in the box 136. The unlocking member 134 is rotatably assembled in the box 136 and is located between the first locking member 133a and the second locking member 133b via a pin 1341. The box 136 is fixed to the back of the ironing board 110. The box 136 includes a seat 1361 and a cover 1362. The seat 1361 is fixed to the back of the ironing board 110 by fasteners such as screws, and the cover 1362 is fastened to the seat 1361 by fasteners such as screws.

[0078] The handle 131 is assembled on the back of one end of the ironing board 110 through a pin shaft, which is convenient for the user to hold the ironing board and the handle at the same time to unlock and rotate the ironing board. A second elastic element such as a torsion spring acts on the handle to reset the handle.

[0079] like Fig.16As shown, the aforementioned ironing board adjustment mechanism 100 is applied to a hanging ironing machine, and the ironing board is suitable for laying clothes flat on the ironing board for ironing when it is flat or tilted, and is suitable for hanging clothes on the ironing board for ironing when it is upright. The hanging ironing machine includes a main unit 200 and a support structure 300. The support mechanism shown in the figure is a support rod. In other embodiments, the support mechanism can be two support rods. The base frame 121 of the ironing board adjustment mechanism is assembled on the upper end of the support structure 300. In other embodiments, the base frame and the support structure can be made as one body. Accordingly, when in use, the inclination angle of the ironing board is adjusted by the ironing board adjustment mechanism, steam is generated by the main unit and transported to the handheld ironing head through the steam pipe, and the steam is released from the handheld ironing head for ironing clothes.

[0080] The aforementioned ironing board adjustment mechanism can also be used as an ironing board by placing the frame on a folding bracket.

[0081] The above embodiments illustrate the structure and application of the locking mechanism of the utility model. In specific implementation, the locking mechanism can be applied to angle adjustment mechanisms of ironing boards of other structures according to the locking and unlocking of the locking mechanism.

Claims

1. Locking mechanism, characterized by include: Slide bar (132); A locking member, which is sleeved on the slide bar through the through hole and locks the slide bar by elastic force; An unlocking member (134) which cooperates with the handle (131) and the locking member; The operating handle links the unlocking member and the locking member to prompt the locking member to unlock the slide bar.

2. The locking mechanism according to claim 1, characterized in that: The locking piece locks the slide bar so that the edge of its through hole clamps the slide bar, and the locking piece unlocks the slide bar so that the edge of its through hole releases the slide bar.

3. The locking mechanism according to claim 1 or 2, characterized in that: The locking mechanism (130) further comprises a linkage member (135), wherein the linkage member (135) is connected between the handle (131) and the unlocking member (134) to realize linkage between the handle and the unlocking member.

4. The locking mechanism according to claim 1 or 2, characterized in that: The unlocking member (134) is rotatably arranged and is rotatably matched with the locking member.

5. The locking mechanism according to claim 1 or 2, characterized in that: The locking member comprises a first locking member (133a) and a second locking member (133b), and the locking directions of the first locking member and the second locking member are opposite.

6. The locking mechanism according to claim 5, characterized in that: The unlocking member (134) is rotatably arranged via a pin shaft (1341) and is located between the first locking member (133a) and the second locking member (133b).

7. The locking mechanism according to claim 1 or 2, characterized in that: One end of the sliding rod (132) is connected to the third shaft (c).

8. The locking mechanism according to claim 1 or 2, characterized in that: The locking piece is an elastic component, a part of the locking piece is fixed, and a part of the locking piece with the through hole can be elastically deformed and provide elastic force for locking the sliding rod.

9. The locking mechanism according to claim 8, characterized in that: An auxiliary elastic element acts on the locking piece, and the auxiliary elastic element provides auxiliary elastic force for locking the sliding rod.

10. The locking mechanism according to claim 1 or 2, characterized in that: The locking member is movably arranged, and a first elastic element acts on the locking member, and the first elastic element provides elastic force for locking the sliding rod.

11. The locking mechanism according to claim 1 or 2, characterized in that: The locking member and the unlocking member are located in a fixed box (136).

12. The locking mechanism according to claim 1 or 2, characterized in that: A second elastic element acts on the handle.

13. The locking mechanism according to claim 1 or 2, characterized in that: The slide bar (132) is arranged on the back of the ironing board (110) and extends along the length direction of the ironing board; the locking member is fixedly arranged on the back of the ironing board.

14. The locking mechanism according to claim 1 or 2, characterized in that: The locking part and the unlocking part are located in the middle part of the back side of the ironing board.

15. The locking mechanism according to claim 1 or 2, characterized in that: The handle (131) is located at one end of the ironing board (110).

16. The locking mechanism according to claim 1 or 2, characterized in that: A rotatable pin is provided, one end of which extends toward a side of the ironing board. The unlocking member (134) and the handle (131) are both fixed to the pin (1341), so that the unlocking member is rotated synchronously with the handle when it is rotated.

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