Switching mechanism and stick hair dryer

Abstract

The utility model discloses a kind of switch mechanism and stick type hair dryer, it is related to switch technical field, wherein switch mechanism, including support, drive assembly and vane switch component;Support is provided with the guide groove extending along first direction, and the end of the slot of guide groove forms a limit block;Drive assembly includes drive block and reset spring piece, the two sides of reset spring piece respectively abut the bottom wall of guide groove and drive block;Drive block slides along first direction in guide groove;Vane switch component includes trigger block, first elastic vane and second elastic vane, first elastic vane and second elastic vane are all arranged in support, and trigger block is arranged in first elastic vane;Drive block can be moved in second direction, drive trigger block moves along third direction, to drive first elastic vane and second elastic vane abut;Wherein, first direction, second direction and third direction are perpendicular to each other.

Description

Technical Field

[0001] This utility model relates to the field of switch technology, and in particular to a switch mechanism and a rod-type hair dryer. Background Technology

[0002] A push-button switch is an electronic switching device that uses the deformation of a metal spring triggered by pressing a button to open or close a circuit. Its core structure includes a housing, a button, a spring, and a support. When the user presses the button, the elastic metal spring deforms, causing the contact point below the spring to make contact with the solder pad, thus connecting the circuit. After the button is released, the elastic metal spring disconnects the circuit due to its own restoring force. A push-button switch can be kept in an always-on state by adding a self-locking mechanism.

[0003] Adding a self-locking mechanism to a push-button switch would increase the overall height of the switch. However, in some small electrical appliances, the limited stacking space in the height direction makes it impossible to apply push-button switches with self-locking mechanisms. Utility Model Content

[0004] The main purpose of this invention is to propose a switch mechanism and a stick-type hair dryer, aiming to expand the application range of push-button switches.

[0005] To achieve the above objectives, the switching mechanism proposed in this utility model includes: The bracket has a guide groove extending in a first direction, and a limit block is formed at one end of the groove opening; A driving assembly, comprising a driving block and a reset spring, wherein the two sides of the reset spring respectively abut against the bottom wall of the guide groove and the driving block; the driving block slides within the guide groove along the first direction; and A leaf switch assembly includes a trigger block, a first elastic leaf, and a second elastic leaf. The first and second elastic leaves are both disposed on the bracket, and the trigger block is disposed on the first elastic leaf. A drive block is movable in a second direction, driving the trigger block to move along a third direction, so as to cause the first elastic leaf to abut against the second elastic leaf. The first direction, the second direction, and the third direction are perpendicular to each other. The switching mechanism has a pressed state and an extended state; when the switching mechanism is in the pressed state, the driving block is located at one end of the guide groove away from the limiting block; when the switching mechanism is in the extended state, the driving block abuts against the limiting block so as to be limited by the limiting block in the second direction. Attached Figure Description

[0006] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0007] Figure 1 A schematic diagram of the structure of an embodiment of the switching mechanism provided by this utility model; Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a schematic diagram of another embodiment of the switching mechanism; Figure 4 for Figure 3 Sectional view along BB; Figure 5 This is a schematic diagram of the support structure in the switching mechanism; Figure 6 for Figure 5 A magnified view of a section at point C; Figure 7 This is a schematic diagram of the drive block in the switching mechanism; Figure 8 This is a schematic diagram of the reset spring in the switching mechanism; Figure 9 This is a schematic diagram of the blade switch assembly in the switching mechanism; Figure 10 This is a schematic diagram of an embodiment of the rod-type hair dryer provided by this utility model.

[0008] Explanation of icon numbers:

[0009] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0011] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0012] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0013] In existing technologies, push-button switches typically rely on a self-locking mechanism to maintain the conductive state. However, the introduction of a self-locking mechanism increases the overall height of the switch. In small appliances such as hair dryers, the internal space is compactly stacked along the height direction. Traditional self-locking switches are difficult to integrate due to size limitations, forcing designers to compromise between functional integrity and device miniaturization. For example, when a self-locking power switch needs to be placed inside the handle of a hair dryer, a conventional self-locking structure will occupy too much height space, resulting in an increased overall size or conflicts in the layout of functional modules.

[0014] To solve the above problems, this utility model proposes a switching mechanism 1000. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 as well as Figure 9 This is a schematic diagram of an embodiment of the switching mechanism 1000 provided by this utility model.

[0015] Please refer to Figure 1 , Figure 2 , Figure 3 as well as Figure 4This utility model proposes a switching mechanism 1000, including a bracket 1, a driving assembly, and a blade switch assembly 3; the bracket 1 has a guide groove 1a extending along a first direction, and a limit block 1a1 is formed at one end of the groove opening of the guide groove 1a; the driving assembly includes a driving block 21 and a reset spring 22, with the two sides of the reset spring 22 abutting against the bottom wall of the guide groove 1a and the driving block 21 respectively; the driving block 21 slides in the guide groove 1a along the first direction; the blade switch assembly 3 includes a trigger block 31, a first elastic blade 32, and a second elastic blade 33, both of which are disposed on the bracket 1. The trigger block 31 is located on the first elastic leaf 32; the drive block 21 is movable in the second direction, driving the trigger block 31 to move in the third direction, so as to cause the first elastic leaf 32 to abut against the second elastic leaf 33; wherein, the first direction, the second direction and the third direction are perpendicular to each other; the switch mechanism 1000 has a pressing state and an extending state; when the switch mechanism 1000 is in the pressing state, the drive block 21 is located in the guide groove 1a at one end away from the limiting block 1a1; when the switch mechanism 1000 is in the extending state, the drive block 21 abuts against the limiting block 1a1, so as to be limited by the limiting block 1a1 in the second direction.

[0016] The second direction can be considered as the direction in which the user presses the drive block 21 or the drive block 21 rebounds and moves up and down. When the drive block 21 moves in the second direction, the switch mechanism 1000 can be switched on and off. The guide groove 1a refers to the groove structure on the bracket 1 used to constrain the sliding path of the drive block 21, and its extension direction is defined as the first direction. The first direction and the third direction can be considered to be on the same horizontal plane as the second direction. The sliding of the drive block 21 in the guide groove 1a is provided with a rebound force by the reset spring 22. The linkage between the trigger block 31 and the drive block 21 is completed by the inclined surface cooperation. For example, an inclined surface is set on the side wall of the drive block 21. When the drive block 21 moves in the second direction (i.e., moves up and down), the trigger block 31 is squeezed by the drive block 21 and reciprocates in the third direction (lateral movement). The first elastic blade 32 and the second elastic blade 33 can be copper alloy springs, and the circuit is connected by deformation contact. The abutment of the limiting block 1a1 and the drive block 21 forms a self-locking state. The limiting block 1a1 can be designed as a boss or a hook structure.

[0017] Specifically, when the drive block 21 is moved along the second direction by an external force, the reset spring 22 is compressed and stores energy. The inclined surface of its sidewall pushes the trigger block 31 to move along the third direction, causing the first elastic leaf 32 to bend towards the second elastic leaf 33 until it contacts the conducting circuit. Then, the drive block 21 is pushed to slide along the first direction to the end of the guide groove 1a. At this time, the drive block 21 is blocked by the limiting block 1a1, and the reset spring 22 cannot rebound, so the switch remains in the conducting state. When the drive block 21 is pulled back, the reset spring 22 releases energy, the drive block 21 resets and moves upward, and the trigger block 31 retracts along the inclined surface under the elastic force of the first elastic leaf 32. The first elastic leaf 32 and the second elastic leaf 33 separate and disconnect the circuit. Since it is only necessary to move the drive block 21 in the first direction to push the trigger block 31 to press the first elastic leaf 32 and the second elastic leaf 33 against each other on the horizontal surface, the switching mechanism 1000 is turned on. Afterward, maintaining the conducting state of the switching mechanism 1000 only requires moving the drive block 21 on the horizontal surface.

[0018] By linking vertical pressing with horizontal triggering and maintaining conduction through horizontal sliding, the movement direction is decomposed into three orthogonal axes, avoiding structural stacking in a single direction. Self-locking is achieved through the direct contact between the guide groove 1a's end limiting block 1a1 and the drive block 21, simplifying the structure. While maintaining the self-locking function, the height of the switch mechanism 1000 is compressed to accommodate only the displacement space of the drive block 21 and the deformation space of the reset spring 22, allowing it to be integrated into small electrical devices with limited height space, such as the stick hair dryer 2000. The vertical movement of the drive block 21 and the horizontal movement of the trigger block 31 are achieved through inclined plane linkage. The drive block 21 then moves on the horizontal plane to maintain self-locking and conduction, eliminating the need for an additional vertical locking structure. The overall structure only needs to accommodate the displacement of the drive block 21 and the deformation of the reset spring 22 in the height direction, significantly reducing the occupied height space.

[0019] Please refer to Figure 3 and Figure 7 In one embodiment of the present invention, the driving block 21 has protrusions 211 on both sides facing the third direction, and the protrusions 211 near the trigger block 31 form a driving inclined surface 211a. The trigger block 31 slides on the driving inclined surface 211a to reciprocate along the third direction.

[0020] The protrusion 211 refers to the protruding structure extending outward from both sides of the drive block 21. It can be made of metal or plastic integrally formed with the drive block 21, and is used to enhance the structural stability of the drive block 21 and form a sliding contact surface. The drive inclined surface 211a refers to the inclined surface formed on the surface of the protrusion 211. It can be made of a plane or arc surface with the contact area with the trigger block 31 processed at a preset angle, and is used to convert the movement of the drive block 21 in the second direction into the displacement of the trigger block 31 in the third direction.

[0021] Specifically, when the drive block 21 moves in the second direction, the drive inclined surface 211a contacts the trigger block 31 and slides relative to it. Due to the inclination angle of the drive inclined surface 211a, the trigger block 31 is guided to move along the third direction during the sliding process, thereby causing the first elastic blade 32 to abut or separate from the second elastic blade 33. In this process, the protrusion 211, through the contact between the drive inclined surface 211a and the trigger block 31, converts the linear motion of the drive block 21 into the vertical motion of the trigger block 31, while the structural strength of the protrusion 211 itself can prevent the drive block 21 from deforming due to force.

[0022] The horizontal movement of the drive block 21 is converted into the vertical movement of the trigger block 31 by the drive ramp 211a, making the movement direction of the drive component orthogonal to the trigger direction in space. This reduces the space occupied by the switch mechanism 1000 in the height direction, thus enabling the switch triggering action to be completed within a limited height space, solving the problem that traditional self-locking switches cannot be applied to small electrical appliances due to height limitations. The cooperation between the drive ramp 211a and the trigger block 31 makes the movement of the trigger block 31 more stable, avoiding poor contact or wear caused by deviation in the movement trajectory.

[0023] Please refer to Figure 5 and Figure 6 In one embodiment of the present invention, a plurality of limiting protrusions 1a2 are formed in the guide groove 1a, and each of the limiting protrusions 1a2 is distributed on the opposite side walls at both ends of the guide groove 1a along the first direction; each of the limiting protrusions 1a2 is configured to limit and stop the protrusion 211 to restrict the movement of the drive block 21 in the first direction.

[0024] Among them, the limiting protrusion 1a2 refers to the protruding structure set on both sides of the guide groove 1a. Specifically, it can be implemented by trapezoidal block or hemispherical protrusion. Its function is to prevent the drive block 21 from exceeding the predetermined stroke range during the sliding process by forming physical interference with the protrusion 211 of the drive block 21.

[0025] Specifically, when the drive block 21 slides along the first direction, its side walls maintain sliding contact with the limiting protrusions 1a2 on both sides of the guide groove 1a. When the drive block 21 moves to the end region of the guide groove 1a, the protrusion 211 abuts against the corresponding limiting protrusion 1a2, at which point the drive block 21 cannot continue to move along the original direction. This limiting structure ensures that the drive block 21 always remains within the effective stroke range of the guide groove 1a.

[0026] By symmetrically arranging limiting protrusions 1a2 on both sides of the guide groove 1a, multi-point contact limiting of the protrusion 211 of the drive block 21 is formed, effectively dispersing the contact stress and preventing the drive block 21 from tilting during sliding. This solves the problem of insufficient motion stability of the traditional switch mechanism 1000. Through the cooperation of the multi-point symmetrically distributed limiting protrusions 1a2 and the protrusion 211, it is ensured that the drive block 21 always maintains a straight sliding trajectory in the guide groove 1a, preventing abnormal wear of the reset spring 22 or poor contact of the blade switch assembly 3 caused by tilting, thereby improving the operational stability of the switch mechanism 1000.

[0027] In one embodiment of the present invention, the driving block 21 includes a stop section and two abutment sections, the two abutment sections being connected to the two ends of the stop section respectively; the stop section is provided with the protrusion 211, and each of the limiting protrusions 1a2 slides against the opposite side walls of the two abutment sections along the third direction.

[0028] The stop section refers to the main body of the drive block 21, which can be implemented using a rectangular block structure to form a protrusion 211 and cooperate with the limiting protrusion 1a2 for limiting. The abutment section refers to the extensions located at both ends of the stop section, which can be implemented using a plate structure to contact the limiting protrusion 1a2 in the guide groove 1a to limit the movement trajectory of the drive block 21.

[0029] Specifically, the drive block 21 is divided into a stop section and two abutment sections. The stop section serves as the core for transmitting driving force, and its protrusion 211 contacts the trigger block 31. The two abutment sections are located at both ends of the stop section, and their side walls remain in contact with the limiting protrusion 1a2 when sliding within the guide groove 1a. When the drive block 21 slides along the first direction, the limiting protrusion 1a2 applies a constraint force to the side walls of the abutment sections, strictly limiting the direction of movement of the drive block 21 and preventing tilting or jamming caused by uneven force.

[0030] By setting segmented stop sections and abutment sections, the contact area between the drive block 21 and the limiting protrusion 1a2 is increased and evenly distributed, thereby improving sliding stability. This effectively solves the problem of motion trajectory deviation caused by force offset during the sliding process of the drive block 21, ensuring that the trigger block 31 can move in the predetermined direction. At the same time, it reduces wear between the drive block 21 and the guide groove 1a, extending the service life of the switching mechanism 1000.

[0031] Please refer to Figure 2 and Figure 9 In one embodiment of the present invention, the blade switch assembly 3 further includes a limiting block 34, which is disposed in the middle of the second elastic blade 33 and abuts against the middle of the first elastic blade 32.

[0032] The limiting block 34 is a rigid structural component located in the middle of the second elastic blade 33. It can be implemented using a plastic boss and is used to prevent the first elastic blade 32 from contacting the second elastic blade 33 when the switching mechanism 1000 is in the open state. The first elastic blade 32 is an elastic metal sheet with conductive function. It can be made of copper alloy sheet by stamping. Its deformation capability allows it to contact the second elastic blade 33 to conduct the circuit under trigger pressure.

[0033] The rigid support of the limit block 34 prevents the first elastic blade 32 from contacting the second elastic blade 33 and thus turning on when the switch mechanism 1000 is in the off state, thereby improving the operational stability of the switch mechanism 1000.

[0034] Please refer to Figure 2 and Figure 9 In one embodiment of the present invention, the blade switch assembly 3 further includes a fixing frame 35, which is disposed on the bracket 1. The end of the first elastic blade 32 away from the trigger block 31 and the end of the second elastic blade 33 away from the trigger block 31 are both disposed on the fixing frame 35.

[0035] The fixing frame 35 is a structural component used to fix the elastic blades. It can be made of plastic and is installed on the bracket 1 by welding, snap-fitting, or bolting. Its function is to provide a stable mounting point for the first elastic blade 32 and the second elastic blade 33, preventing them from shifting due to vibration or external force. The fact that the non-moving ends of the first elastic blade 32 and the second elastic blade 33 are both located on the fixing frame 35 means that the non-moving ends of the first elastic blade 32 and the second elastic blade 33 are fixed to the same fixing frame 35. This can be achieved by clamping, riveting, or bonding, thereby ensuring that the relative positions of the first elastic blade 32 and the second elastic blade 33 are fixed and preventing poor contact due to deformation.

[0036] Specifically, the fixing frame 35 is installed at a preset position on the bracket 1, and its shape matches the bracket 1 to achieve a stable connection. The fixed ends of the first elastic blade 32 and the second elastic blade 33 are fixed to the fixing frame 35. When the trigger block 31 is displaced by the driving block 21, the free end of the first elastic blade 32 bends towards the second elastic blade 33, while the fixed end remains stationary due to the constraint of the fixing frame 35. This forms a stable elastic deformation path, ensuring that the first elastic blade 32 can rebound stably when the trigger block 31 retracts, thereby realizing the disconnection of the switching mechanism 1000.

[0037] By adding a fixing frame 35, the fixed end of the elastic blade is separated from the trigger end, which not only restricts the degree of freedom of the non-working area, but also enhances the controllability of deformation in the working area, thereby improving the stability of the switching action. This solves the problem of contact failure caused by the elastic blade not being firmly fixed. By constraining the non-working ends of the first elastic blade 32 and the second elastic blade 33 by the fixing frame 35, it is ensured that the deformation of the first elastic blade 32 is concentrated in the preset area when the trigger block 31 moves, thereby improving the durability of the switching mechanism 1000 in miniaturized equipment and the reliability of circuit switching.

[0038] Please refer to Figure 2 and Figure 9 In one embodiment of the present invention, the blade switch assembly 3 further includes a fixing block 36, which is disposed on the bracket 1, and the end of the second elastic blade 33 away from the fixing frame 35 is disposed on the fixing block 36.

[0039] The fixing block 36 is an auxiliary structure used to fix the second elastic blade 33. Specifically, it can be a block-shaped component made of plastic that is installed on the bracket 1 to constrain the end position of the second elastic blade 33. The end of the second elastic blade 33 away from the fixing frame 35 is located on the fixing block 36, which means that the end of the second elastic blade 33 is fixed to the fixing block 36 by snap-fitting, welding or riveting, thus forming a double-end fixing structure to prevent the second elastic blade 33 from shifting due to force.

[0040] Specifically, when the drive block 21 moves and triggers the first elastic blade 32, the deformation range of the second elastic blade 33 is limited to a controllable range because its two ends are constrained by the fixing frame 35 and the fixing block 36, respectively. The rigid connection between the fixing block 36 and the bracket 1 prevents the second elastic blade 33 from shifting position during repeated movements. For example, the fixing block 36 can be designed as a plastic block with a slot, and the end of the second elastic blade 33 is embedded in the slot, thereby achieving a stable mechanical connection.

[0041] By adding a fixing block 36 to form a double-ended fixing structure, the position of the second elastic blade 33 can be precisely controlled, thereby improving the stability of the contact and solving the contact instability problem caused by the single-ended fixing of the second elastic blade 33. The double-ended fixing structure enhances the anti-displacement capability of the second elastic blade 33. In addition, the fixing block 36 does not require additional height space.

[0042] Please refer to Figure 2 , Figure 4 , Figure 7 as well as Figure 8 In one embodiment of the present invention, the driving block 21 has a limiting groove 21a on the side facing the bottom wall of the guide groove 1a, and the reset spring 22 is engaged in the limiting groove 21a.

[0043] The limiting groove 21a refers to the recessed structure on the contact surface between the driving block 21 and the bottom wall of the guide groove 1a. Specifically, it can be implemented using a rectangular groove or a dovetail groove, and is used to constrain the displacement path of the reset spring 22. The reset spring 22 snap-fit ​​means that the reset spring 22 is embedded in the limiting groove 21a, so that the reset spring 22 remains stable and does not shift during the sliding of the driving block 21.

[0044] Specifically, when the drive block 21 moves along the second direction, the reset spring 22 is compressed and stores elastic potential energy. The sidewall of the limiting groove 21a provides lateral constraint on the spring, preventing it from shifting or disengaging during compression. In the pressed state, the drive block 21 is located away from the limiting block 1a1, and the reset spring 22 is in a state of maximum compression. In the pushed-out state, the reset spring 22 remains in a state of maximum compression, at which point the end face of the drive block 21 contacts the limiting block 1a1, completing the mechanical self-locking.

[0045] By engaging the limiting groove 21a with the spring piece, the spring piece is embedded inside the drive block 21, which reduces the space occupied by the reset component in the vertical direction, thereby reducing the overall height of the switch mechanism 1000. This solves the problem that traditional self-locking switches cannot be applied to small electrical appliances due to their large size. By engaging the limiting groove 21a with the reset spring piece 22, the structure is made more compact while ensuring the reliability of the reset function.

[0046] Please refer to Figure 7 and Figure 8 In one embodiment of the present invention, a limiting post 21a1 protrudes from the bottom wall of the limiting groove 21a, and a through hole 22a is formed in the reset spring 22, and the limiting post 21a1 passes through the through hole 22a.

[0047] The limiting post 21a1 refers to a columnar structure extending upward from the bottom wall of the limiting groove 21a, which can be implemented as a cylinder or a prism, and is used to limit the lateral displacement of the reset spring 22. The through hole 22a refers to a through hole opened on the reset spring 22, which can be implemented as a circular hole or an elliptical hole, with the hole diameter slightly larger than the outer diameter of the limiting post 21a1, so that the limiting post 21a1 can pass through the through hole 22a and allow the reset spring 22 to undergo elastic deformation.

[0048] Specifically, after the limiting post 21a1 passes through the through hole 22a of the reset spring 22, the reset spring 22 is clamped and limited in the vertical direction by the bottom wall of the limiting groove 21a and the driving block 21. At the same time, in the horizontal direction, radial constraint is achieved through the gap fit between the limiting post 21a1 and the through hole 22a. This structure prevents the reset spring 22 from shifting laterally during repeated compression, thereby ensuring that the driving block 21 always moves along the predetermined trajectory during the reset process.

[0049] In some specific embodiments, the limiting posts 21a1 can be symmetrically distributed at both ends of the bottom wall of the limiting groove 21a. For example, one limiting post 21a1 can be provided on each side of the bottom wall of the groove along its length, and the corresponding reset spring 22 has through holes 22a at both ends. The edges of the through holes 22a of the reset spring 22 can be chamfered to reduce frictional wear with the limiting posts 21a1.

[0050] Through the mechanical cooperation between the limiting post 21a1 and the through hole 22a, the dual positioning constraint of the reset spring 22 is achieved while maintaining the overall height of the switch. The cooperation structure between the limiting post 21a1 and the through hole 22a only increases the height of the post in the vertical direction. This height can be fully accommodated inside the drive block 21 by optimizing the depth of the limiting groove 21a, so that the overall height of the switch mechanism 1000 is not affected, and the stability of the reset function of the switch mechanism 1000 can also be ensured.

[0051] This utility model also proposes a rod-type hair dryer 2000, please refer to it. Figure 10 The stick-type hair dryer 2000 includes a housing 4, a button 5, and a switching mechanism 1000. The specific structure of the switching mechanism 1000 is as described in the above embodiments. Since the stick-type hair dryer 2000 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The housing 4 forms a mounting cavity, and a push hole 4a is opened on the peripheral wall of the mounting cavity. The bracket 1, the drive assembly, and the blade switch assembly 3 are all disposed in the mounting cavity. The push hole 4a extends along the first direction and is located at the opening of the guide groove 1a. The drive block 21 slides against the inner wall of the mounting cavity, and the button 5 is disposed on the drive block 21 and exposed in the push hole 4a.

[0052] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A switching mechanism, characterized in that, include: The bracket has a guide groove extending in a first direction, and a limit block is formed at one end of the groove opening; A driving assembly includes a driving block and a reset spring, wherein the two sides of the reset spring abut against the bottom wall of the guide groove and the driving block, respectively; the driving block slides within the guide groove along the first direction. as well as A leaf switch assembly includes a trigger block, a first elastic leaf, and a second elastic leaf. The first and second elastic leaves are both disposed on the bracket, and the trigger block is disposed on the first elastic leaf. A drive block is movable in a second direction, driving the trigger block to move along a third direction, so as to cause the first elastic leaf to abut against the second elastic leaf. The first direction, the second direction, and the third direction are perpendicular to each other. The switching mechanism has a pressed state and an extended state; when the switching mechanism is in the pressed state, the driving block is located at one end of the guide groove away from the limiting block; when the switching mechanism is in the extended state, the driving block abuts against the limiting block so as to be limited by the limiting block in the second direction.

2. The switching mechanism as described in claim 1, characterized in that, The drive block has protrusions on both sides facing the third direction. The protrusions near the trigger block form a drive slope. The trigger block slides on the drive slope to reciprocate along the third direction.

3. The switching mechanism as described in claim 2, characterized in that, Multiple limiting protrusions are formed in the guide groove, and each limiting protrusion is distributed on the opposite side walls at both ends of the guide groove along the first direction; each limiting protrusion is configured to limit and stop the protrusion to restrict the movement of the drive block in the first direction.

4. The switching mechanism as described in claim 3, characterized in that, The drive block includes a stop section and two abutment sections, with the two abutment sections respectively connected to both ends of the stop section; The stop section is provided with the protrusion, and each of the limiting protrusions slides against the opposite side walls of the two abutment sections along the third direction.

5. The switching mechanism as described in claim 1, characterized in that, The blade switch assembly further includes a limiting block, which is located in the middle of the second elastic blade and abuts against the middle of the first elastic blade.

6. The switching mechanism as described in claim 5, characterized in that, The blade switch assembly further includes a fixing frame, which is mounted on the bracket. The end of the first elastic blade away from the trigger block and the end of the second elastic blade away from the trigger block are both mounted on the fixing frame.

7. The switching mechanism as described in claim 6, characterized in that, The blade switch assembly further includes a fixing block, which is disposed on the bracket, and the end of the second elastic blade away from the fixing frame is disposed on the fixing block.

8. The switching mechanism as described in any one of claims 1 to 7, characterized in that, The drive block has a limiting groove on one side facing the bottom wall of the guide groove, and the reset spring is engaged in the limiting groove.

9. The switching mechanism as described in claim 8, characterized in that, The bottom wall of the limiting groove is provided with a limiting post, the reset spring is formed with a through hole, and the limiting post passes through the through hole.

10. A rod-type hair dryer, characterized in that, The stick-type hair dryer includes a housing, a button, and a switching mechanism as described in any one of claims 1 to 9; The outer shell has a mounting cavity, and a push hole is provided on the peripheral wall of the mounting cavity. The bracket, the drive assembly, and the blade switch assembly are all disposed in the mounting cavity. The push hole extends along the first direction and is located at the opening of the guide groove. The drive block slides against the inner wall of the mounting cavity, and the button is disposed on the drive block and exposed in the push hole.

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