A dry-burn prevention iron

Abstract

The application relates to a dry-burn-preventing iron, belonging to the technical field of irons, which comprises an iron body, a handle and a counterweight, the bottom of the iron body is provided with an ironing bottom plate, the handle is arranged on the iron body and extends outward, the side where the handle is arranged is the tail of the iron body, the other side is the front part, the counterweight is arranged on the handle, the center of gravity of the iron body is deviated to the tail of the iron body under the action of the counterweight, the tail of the iron body is provided with a first supporting inclined surface, the side of the handle away from the iron body is provided with a second supporting inclined surface; the iron body is inclined backward under the action of the counterweight in the non-force state, at this time, the first supporting inclined surface and the second supporting inclined surface are attached to the ironing platform for supporting, and the ironing bottom plate is in a suspended state. The application has the effect of improving the safety of the iron during use.

Description

Technical Field

[0001] This application relates to the field of iron technology, and in particular to an anti-dry-burning iron. Background Technology

[0002] An iron is a common household appliance, often used to iron wrinkled clothing. An iron consists of a casing, a water tank, a soleplate, and a handle at the rear for easy gripping. The water tank, located inside the casing, heats the water to create steam, while the soleplate, mounted at the bottom of the casing, is used to iron clothing. Typically, a support surface is located at the rear of the iron; when the user temporarily stops ironing, this support surface allows the iron to stand upright, preventing the soleplate from contacting the clothing and causing it to dry-burn and damage the fabric.

[0003] However, if a user encounters an emergency and is unable to stand the iron upright while it is in use, the iron will dry-burn, the soleplate will burn the fabric, and it may even cause a safety accident. Summary of the Invention

[0004] To improve the safety of irons during use, this application provides an anti-dry-burning iron.

[0005] This application provides an anti-dry-burning iron, which adopts the following technical solution:

[0006] An anti-dry-burning iron includes an iron body, a handle, and a counterweight. An ironing soleplate is installed on the bottom of the iron body, and the handle is disposed on the iron body and extends outward.

[0007] Let the side where the handle is located be the tail of the iron body and the other side be the front. The counterweight is installed on the handle. Under the action of the counterweight, the center of gravity of the iron body is biased towards the tail of the iron body. The tail of the iron body is provided with a first support slope, and the side of the handle away from the iron body is provided with a second support slope.

[0008] When the iron body is not under force, it tilts backward under the action of the counterweight. At this time, the first support slope and the second support slope are attached to the ironing platform for support, and the ironing soleplate is in a suspended state.

[0009] To maintain a dynamic eccentricity between the counterweight and the water tank, preventing the rear of the iron from becoming too heavy and causing wrist pain when the water level in the tank decreases, the anti-dry-burn iron also includes a floating component installed inside the iron body to drive the counterweight to move back and forth. The handle has a cavity inside, and the counterweight is slidably installed in the cavity. The iron body has a water tank inside, and the floating component is partially installed in the water tank and partially located in the cavity and connected to the counterweight.

[0010] When the water level in the tank rises, the floating assembly drives the counterweight to move away from the iron body along the extension direction of the handle.

[0011] When the water level in the tank drops, the floating assembly drives the counterweight to move along the extension direction of the handle towards the side closer to the iron body.

[0012] In order to make the counterweight move backward after the iron body is tilted without force, so as to make the iron body more stable in the tilted state, the water tank includes a front water-holding cavity located at the top of the ironing soleplate and a rear water-holding cavity located at the tail of the iron body and communicating with the front water-holding cavity. The lowest point of the rear water-holding cavity is lower than the lowest point of the front water-holding cavity, and the floating component is installed in the rear water-holding cavity.

[0013] The floating assembly includes a float, a connecting hose, and a guide post. One end of the connecting hose is connected to the float, and the other end is connected to the counterweight. The guide post is located at the lowest point of the rear water-filling cavity and extends into the cavity. The guide post is inserted into the connecting hose. The buoyancy force on the float is greater than the weight of the connecting hose and the counterweight.

[0014] To reduce the weight of the connecting hose while ensuring good deformation recovery and enabling it to move the counterweight, the floating assembly further includes two sets of fixed pulleys disposed within the cavity to assist in limiting the movement direction of the connecting hose. The two sets of fixed pulleys are spaced apart within the cavity along the movement direction of the counterweight. Deformable wires are inserted into the wall thickness of the connecting hose to provide support for the connecting hose and to move the counterweight. Multiple deformable wires are provided and are spaced apart circumferentially within the wall thickness of the connecting hose.

[0015] To enable the counterweight to move in a directional manner with minimal frictional resistance during movement, a dovetail block is provided on the counterweight. A dovetail groove is formed on the cavity wall for the dovetail block to insert and slide. The extension direction of the dovetail groove is consistent with the extension direction of the grip rod. Rolling balls that reduce friction when the counterweight slides are also provided on the cavity wall. The rolling balls are rotatably mounted on the cavity wall and roll in contact with the counterweight. Multiple rolling balls are spaced apart along the sliding direction of the counterweight.

[0016] To ensure that the counterweight can move smoothly towards the iron body as the water level drops and smoothly away from the iron body as the water level rises, the handle is gradually tilted away from the ironing soleplate along its extension direction. A tension spring is provided on the side of the counterweight away from the connecting hose to assist the counterweight in moving away from the iron body after being buoyed. The tension of the tension spring is less than the combined weight of the float and the connecting hose.

[0017] To allow users to move their hands on the handle to find a more effortless position and hold it while ironing clothes, a micro switch is installed inside the handle near the iron body to control whether the iron body emits steam. A steam button is provided on the handle to drive the micro switch on and off, and the steam button is rotatably mounted on the handle.

[0018] When the steam button is pressed, the steam button squeezes the micro switch, and the iron body will spray steam.

[0019] When no force is applied to the steam button, the steam button automatically resets and does not press the micro switch, at which point the iron body will not emit steam.

[0020] A locking button is slidably mounted on the steam button. When the steam button is pressed, sliding the locking button will limit the reset of the steam button.

[0021] The locking button includes a sliding block and a locking rod. A fixing block is provided in the cavity, and a locking groove is provided on the fixing block for the locking rod to be inserted. When the locking rod is inserted into the locking groove, the locking button will limit the reset rotation of the steam button.

[0022] The steam button is provided with a snap-fit ​​protrusion, and the sliding block is provided with a first snap-fit ​​groove and a second snap-fit ​​groove for the snap-fit ​​protrusion to snap into. The first snap-fit ​​groove and the second snap-fit ​​groove are arranged at intervals along the sliding direction of the sliding block.

[0023] When the latching protrusion is engaged in the first latching groove, the steam button will automatically reset after being unforced, and steam will no longer be ejected.

[0024] When the latching protrusion engages with the second latching groove, the locking rod will insert into the locking groove to lock the steam button, and steam will continue to be ejected.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. When the user encounters an emergency and releases the iron body and leaves, the iron body will automatically tilt backward under the action of the counterweight, so that the ironing soleplate leaves the clothes being ironed and becomes suspended in the air, preventing the clothes from being burned. At the same time, the first and second support slopes will abut against the ironing platform for stable support, thereby improving the safety of the ironing stand during use.

[0027] 2. The counterweight can slide within the cavity of the handle via a floating component. When the water level in the tank rises, the counterweight moves away from the iron body. When the water level in the tank drops, the counterweight moves closer to the iron body, thus creating a dynamic eccentricity. This allows the iron body to tilt backward when there is more water in the tank and the front of the iron body is heavier, as it is not under pressure. When there is less water in the tank and the front of the iron body is lighter, the tail of the iron body is less likely to exert a heavy force on the user.

[0028] 3. When pressing the steam button to iron clothes, the user can move the locking button to insert the locking rod into the locking slot, so that steam can be continuously sprayed out, freeing the user's hands and making it easier for the user to adjust the position on the handle and lift the tail of the iron body with less effort. Attached Figure Description

[0029] Figure 1 This is an overall view of the anti-dry-burning iron in the embodiments of this application.

[0030] Figure 2 This is a cross-sectional view of the anti-dry-burning iron in the embodiments of this application.

[0031] Figure 3 This is an exploded view of the counterweight and grip in an embodiment of this application.

[0032] Figure 4 This is an exploded view of the floating component in an embodiment of this application.

[0033] Figure 5 This is a cross-sectional schematic diagram of the connecting hose in an embodiment of this application.

[0034] Figure 6 This is a partial cross-sectional enlarged view of an embodiment of this application.

[0035] Figure 7 This is an exploded schematic diagram of the steam button and the lock button in the embodiments of this application.

[0036] Figure 8 This is a cross-sectional view of the combined structure of the steam button, the locking button, and the micro switch in the embodiments of this application.

[0037] Explanation of reference numerals in the attached drawings: 1. Iron body; 11. Ironing soleplate; 12. Water tank; 121. Front water chamber; 122. Rear water chamber; 13. First support slope; 2. Handle; 21. Second support slope; 22. Cavity; 23. Ball bearing; 24. Microswitch; 25. Steam button; 251. Snap-fit ​​protrusion; 26. Locking button; 261. Sliding block; 262. Locking rod; 263. First snap-fit ​​groove; 264. Second snap-fit ​​groove; 27. Fixing block; 271. Locking groove; 3. Counterweight; 31. Tension spring; 4. Floating assembly; 41. Float plate; 42. Connecting hose; 43. Guide post; 44. Fixed pulley block; 45. Deformable wire. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0039] This application discloses an anti-dry-burning iron. (Refer to...) Figure 1 and Figure 2 The anti-dry-burning iron includes an iron body 1, a handle 2, a counterweight 3, and a floating assembly 4. The bottom of the iron body 1 is fitted with an ironing soleplate 11 for ironing clothes. A water tank 12 is formed inside the iron body 1, allowing for steam ironing. The handle 2 is fixedly mounted on the iron body 1 and extends outwards. The side with the handle 2 is considered the rear of the iron body 1, and the other side is the front, with the ironing soleplate 11 located at the front. The counterweight 3 is mounted on the handle 2. Under the action of the counterweight 3, the center of gravity of the iron body 1 shifts towards the rear of the iron body 1. Without external force, the iron body 1 will tilt backwards, causing the ironing soleplate 11 to suspend and not contact the clothes. The floating component 4 is installed inside the water tank 12 to drive the counterweight 3 to move back and forth. When the water level in the water tank 12 rises, the floating component 4 drives the counterweight 3 to move away from the iron body 1 along the extension direction of the handle 2. When the water level in the water tank 12 drops, the floating component 4 drives the counterweight 3 to move closer to the iron body 1 along the extension direction of the handle 2. As the water content in the water tank 12 changes, the front and rear of the iron body 1 can form a dynamic eccentricity.

[0040] It is worth noting that, in order to prevent users from having to apply a large upward lifting force to lift the rear end of the iron body 1 when using it, the center of gravity of the iron body 1 is only slightly shifted backward. The iron body 1 can be tilted towards the tail when not under force.

[0041] Reference Figure 1 and Figure 2The iron body 1 has a first supporting slope 13 at its tail end, and the handle 2 has a second supporting slope 21 on the side away from the iron body 1. When the iron body 1 is tilted backward, the first supporting slope 13 and the second supporting slope 21 are attached to the ironing platform for support, so the ironing soleplate 11 will be in a suspended state.

[0042] Reference Figure 2 The water tank 12 includes a front water-holding cavity 121 and a rear water-holding cavity 122, which are interconnected. The front water-holding cavity 121 is located at the top of the ironing soleplate 11, and the rear water-holding cavity 122 is located at the tail of the iron body 1. Part of the rear water-holding cavity 122 is located on the side of the ironing soleplate 11 closer to the tail, so that the ironing soleplate 11 can be suspended and separated from the ironing platform by a certain distance after the iron body 1 is tilted to the tail. The lowest point of the rear water-holding cavity 122 is lower than the lowest point of the front water-holding cavity 121. After the iron body 1 is tilted to the tail, the water in the front water-holding cavity 121 will also enter the rear water-holding cavity 122, increasing the weight of the tail of the iron body 1, making the first support slope 13 and the second support slope 21 more stable.

[0043] Reference Figure 2 and Figure 3 The handle 2 is gradually tilted away from the ironing soleplate 11 along its extension direction. As the water level drops, the counterweight 3 is subjected to both the pulling force of the floating component 4 and the downward force of gravity, facilitating its smooth movement towards the iron body 1. A cavity 22 is provided inside the handle 2, and the counterweight 3 is slidably installed within this cavity. Part of the floating component 4 is installed within the rear water-filled cavity 122; another part is located within the cavity 22 and connected to the counterweight 3.

[0044] The counterweight 3 has a dovetail block integrally formed on the side closest to the ground. A dovetail groove is formed on the cavity wall of the cavity 22 on the side closest to the ground, allowing the dovetail block to be inserted and slid. The dovetail groove extends along the sliding direction of the counterweight 3, and one end of the dovetail groove has an opening slot communicating with the dovetail groove to allow the dovetail block to enter. The dovetail block first enters the opening slot, and then slides into the dovetail groove.

[0045] Reference Figure 2 and Figure 3The cavity 22 has an open spherical groove on its wall near the ground. A rolling ball 23 is inserted into the spherical groove and can rotate within it. Part of the rolling ball 23 protrudes from the groove and is located within the cavity 22. The diameter of the opening of the spherical groove is smaller than the diameter of the rolling ball 23, making it difficult for the rolling ball 23 to detach from the groove once inserted. Multiple spherical grooves are spaced apart along the sliding direction of the counterweight 3, and each groove contains a rolling ball 23. When the counterweight 3 moves within the cavity 22, it moves along the rolling ball 23, thereby reducing the friction experienced by the counterweight 3 during movement.

[0046] Reference Figure 2 and Figure 4 The floating assembly 4 includes a float 41, a connecting hose 42, a guide post 43, and two sets of fixed pulleys 44 disposed within the cavity 22 to assist in limiting the movement direction of the connecting hose 42. The float 41 is located within the rear water-filling cavity 122 and is sleeved on the guide post 43. One end of the connecting hose 42 is connected to the float 41, and the other end is connected to the counterweight 3. The guide post 43 is located at the lowest point of the rear water-filling cavity 122 and extends into the cavity 22. The guide post 43 is inserted into the connecting hose 42, and the buoyancy force on the float 41 is greater than the weight of the connecting hose 42 and the counterweight 3.

[0047] The end of the guide post 43 that is away from the lowest point of the rear water-filled cavity 122 passes through the water tank 12 and is located in the cavity 22. Since the handle 2 is inclined on the iron body 1, the part of the guide post 43 located in the cavity 22 is bent into an arc-shaped post, so that the connecting hose 42 can smoothly transition from the rear water-filled cavity 122 to the cavity 22; or the connecting hose 42 in the cavity 22 can smoothly move to the rear water-filled cavity 122.

[0048] Combination Figure 2 Reference Figure 4 and Figure 5 One end of the connecting hose 42 passes through the water tank 12 and is located inside the cavity 22. A deformable iron wire 45 is inserted into the wall of the connecting hose 42 to provide support for the counterweight 3. Multiple deformable iron wires 45 are arranged circumferentially within the wall of the connecting hose 42 at intervals. Under the action of the deformable iron wires 45, the connecting hose 42 bends after passing the arc-shaped portion of the guide post 43 and enters the cavity 22, thus providing sufficient strength for the connecting hose 42 to move the counterweight 3.

[0049] Combination Figure 2 Reference Figure 4 and Figure 5Two sets of fixed pulleys 44 are arranged at intervals within the cavity 22 along the sliding direction of the counterweight 3, and both sets of fixed pulleys 44 are rotatably mounted on the cavity wall of the cavity 22. Each set of fixed pulleys 44 has two fixed pulleys, which clamp the connecting hose 42. One set of fixed pulleys 44 is located on one side of the arc of the guide post 43, thus restricting the rearward direction of the connecting hose 42 entering the cavity 22; the other set of fixed pulleys 44 guides the movement direction of the hose again.

[0050] Combination Figure 2 Reference Figure 3 and Figure 4 A tension spring 31 is installed on the side of the counterweight 3 that moves along itself and is away from the connecting hose 42. The tension spring 31 can assist the counterweight 3 in moving away from the iron body 1 after being buoyed. The tension of the tension spring 31 is less than the combined weight of the float 41 and the connecting hose 42. Therefore, after the water level drops, the counterweight 3 can move against the tension of the tension spring 31 under the tension of the float and the connecting hose 42.

[0051] A spring plate is fixedly installed on the cavity wall of cavity 22. Hanging rings are installed on both the spring plate and the counterweight 3. Hooks are formed at both ends of the tension spring 31. The hooks at both ends of the tension spring 31 are hooked to the hanging rings on the spring plate and the counterweight 3, respectively.

[0052] Combination Figure 1 Reference Figure 6 and Figure 7 A control circuit board is installed in the cavity 22 on the side of the handle 2 closest to the iron body 1. The control circuit board contains a microswitch 24 (a standard component commonly used in circuit control systems, whose specific principle is not described here) that controls whether the iron body 1 emits steam. A steam button 25, which drives the microswitch 24, is rotatably mounted on the handle 2. The side of the steam button 25 closest to the iron body 1 is rotatably mounted on the handle 2. The user presses the other side of the steam button 25 with their finger, causing it to swing into the cavity 22 and squeeze the microswitch 24. When the steam button 25 is pressed, it squeezes the microswitch 24, and the iron body 1 emits steam. When no force is applied to the steam button 25, it automatically resets and does not squeeze the microswitch 24, at which point the iron body 1 does not emit steam.

[0053] The cavity wall of cavity 22 has a through hole for mounting steam button 25. In addition, in order not to affect the cooperation between steam button 25 and micro switch 24, connecting hose 42 is located on one side of steam button 25.

[0054] Combination Figure 6 Reference Figure 7 and Figure 8A locking button 26 is slidably mounted on the steam button 25, and the locking button 26 rotates synchronously with the steam button 25. When the steam button 25 is pressed, the sliding locking button 26 will limit the reset of the steam button 25, so that the iron body 1 can continuously spray steam without pressing the steam button 25 with a finger.

[0055] The locking button 26 includes a sliding block 261 and a locking lever 262, which is integrally formed with the sliding block 261. The sliding block 261 is snapped into and slidably mounted on the steam button 25. When the steam button 25 is pressed, the sliding block 261 moves, and the locking lever 262 locks and limits the rotation reset of the steam button 25.

[0056] Combination Figure 6 Reference Figure 7 and Figure 8 The bottom of the steam button 25 has a snap-fit ​​sliding groove that passes through the steam button 25 and communicates with the cavity 22. The sliding block 261 has a snap-fit ​​that is integrally formed on it. After the snap-fit ​​is inserted into the snap-fit ​​sliding groove, it snaps onto the steam button 25 along the insertion direction. However, the sliding block 261 can still slide on the steam button 25 along the extension direction of the snap-fit ​​sliding groove.

[0057] The cavity 22 has a fixing block 27, and the fixing block 27 has a locking groove 271 for the locking rod 262 to slide into after insertion. When the locking rod 262 is inserted into the locking groove 271, the locking button 26 will limit the reset rotation of the steam button 25.

[0058] The steam button 25 has an integrally formed snap-fit ​​protrusion 251 on the side near the sliding block 261. The sliding block 261 has a first snap-fit ​​groove 263 and a second snap-fit ​​groove 264 for the snap-fit ​​protrusion 251 to engage. The first snap-fit ​​groove 263 and the second snap-fit ​​groove 264 are arranged at intervals along the sliding direction of the sliding block 261. When the snap-fit ​​protrusion 251 is engaged in the first snap-fit ​​groove 263, the steam button 25 will automatically reset after being relieved of force, and steam will no longer be emitted. When the snap-fit ​​protrusion 251 is engaged in the second snap-fit ​​groove 264, the locking rod 262 will be inserted into the locking groove 271 to lock the steam button 25, and steam will continue to be emitted.

[0059] The implementation principle of the anti-dry-burning iron in this embodiment is as follows: Due to the action of the counterweight 3, the center of gravity of the iron body 1 shifts towards the tail. When the user encounters an emergency and releases the iron body 1 and leaves, the iron body 1 automatically tilts towards the tail under the action of the counterweight 3. After the iron body 1 tilts towards the tail, the first support slope 13 and the second support slope 21 will abut against the ironing platform for stable support. At this time, the ironing soleplate 11 is lifted off the ironed clothes and becomes suspended, preventing damage to the clothes.

[0060] When water is added to the water tank 12, as the water level rises, the float 41 rises, and the counterweight 3 will be pushed away from the iron body 1 by the connecting hose 42. At the same time, because the handle 2 is tilted, the tension spring 31 will also provide a pulling force as the counterweight 3 moves away from the iron body 1, allowing the counterweight 3 to move normally. In addition, after the counterweight 3 moves backward, the iron body 1 is less likely to tilt backward due to excessive water in the water tank 12, causing the front weight to be greater than the rear weight, thus preventing the iron body 1 from tilting backward when no force is applied.

[0061] During steam ironing, as the ironing time increases, the water volume in the water tank 12 decreases, and the water level drops. At this time, the float 41 descends, and the counterweight 3 moves closer to the iron body 1 due to the pulling force of the float 41 and the connecting hose 42, as well as the downward gravity of the handle 2. This eliminates the need for the user to apply significant upward lifting force to raise the rear end of the iron body 1, thus preventing wrist pain.

[0062] In addition, after the iron body 1 tilts backward, the water in the front water chamber 121 will flow into the rear water chamber 122, causing the float 41 to rise and the counterweight 3 to move away from the iron body 1, increasing the weight of the tail of the iron body 1, thereby making the iron body 1 more stable when tilted.

[0063] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dry-burning iron, characterized in that: It includes an iron body (1), a handle (2) and a counterweight (3). The bottom of the iron body (1) is equipped with an ironing soleplate (11), and the handle (2) is set on the iron body (1) and suspended. Let the side where the handle (2) is located be the tail of the iron body (1) and the other side be the front. The counterweight (3) is installed on the handle (2). Under the action of the counterweight (3), the center of gravity of the iron body (1) is biased towards the tail of the iron body (1). The tail of the iron body (1) is provided with a first support slope (13), and the side of the handle (2) away from the iron body (1) is provided with a second support slope (21). When the iron body (1) is not under force, it tilts backward under the action of the counterweight (3). At this time, the first support slope (13) and the second support slope (21) are attached to the ironing platform for support, and the ironing base plate (11) is in a suspended state. It also includes a floating component (4) installed inside the iron body (1) to drive the counterweight (3) to move back and forth. The handle (2) has a cavity (22) inside. The counterweight (3) is slidably installed in the cavity (22). The iron body (1) has a water tank (12) inside. The floating component (4) is partially installed in the water tank (12) and partially located in the cavity (22) and connected to the counterweight (3). When the water level in the water tank (12) rises, the floating component (4) drives the counterweight (3) to move away from the iron body (1) along the extension direction of the handle (2); When the water level in the water tank (12) drops, the floating component (4) drives the counterweight (3) to move along the extension direction of the handle (2) towards the side closer to the iron body (1).

2. The anti-dry-burning iron according to claim 1, characterized in that: The water tank (12) includes a front water chamber (121) located at the top of the ironing soleplate (11) and a rear water chamber (122) located at the tail of the iron body (1) and communicating with the front water chamber (121). The lowest point of the rear water chamber (122) is lower than the lowest point of the front water chamber (121), and the floating component (4) is installed in the rear water chamber (122).

3. The anti-dry-burning iron according to claim 2, characterized in that: The floating assembly (4) includes a float (41), a connecting hose (42), and a guide post (43). One end of the connecting hose (42) is connected to the float (41), and the other end is connected to the counterweight (3). The guide post (43) is located at the lowest point of the rear water-filling cavity (122) and extends into the cavity (22). The guide post (43) is inserted into the connecting hose (42). The buoyancy force on the float (41) is greater than the weight of the connecting hose (42) and the counterweight (3).

4. The anti-dry-burning iron according to claim 3, characterized in that: The floating component (4) also includes two sets of fixed pulleys (44) disposed in the cavity (22) to assist in limiting the movement direction of the connecting hose (42). The two sets of fixed pulleys (44) are arranged at intervals in the cavity (22) along the movement direction of the counterweight (3). A deformable iron wire (45) is inserted into the wall thickness of the connecting hose (42) to provide support for the connecting hose (42) to push the counterweight (3) to move. There are multiple deformable iron wires (45), and the multiple deformable iron wires (45) are arranged at intervals in the circumferential direction within the wall thickness of the connecting hose (42).

5. The anti-dry-burning iron according to claim 3, characterized in that: The counterweight (3) is provided with a dovetail block, and the cavity wall of the cavity (22) is provided with a dovetail groove for the dovetail block to be inserted and slide. The extension direction of the dovetail groove is consistent with the extension direction of the grip (2). The cavity wall of the cavity (22) is also provided with a rolling ball (23) to reduce the friction when the counterweight (3) slides. The rolling ball (23) is rotatably installed on the cavity wall of the cavity (22), and the rolling ball (23) rolls in contact with the counterweight (3). Multiple rolling balls (23) are spaced apart along the sliding direction of the counterweight (3).

6. A dry-burning iron according to claim 4 or 5, characterized in that: The handle (2) is gradually tilted away from the ironing plate (11) along its own extension direction. The counterweight (3) is provided with a tension spring (31) on the side away from the connecting hose (42) to assist the counterweight (3) in moving away from the iron body (1) after being buoyed. The tension of the tension spring (31) is less than the weight of the float (41) plus the connecting hose (42).

7. The anti-dry-burning iron according to claim 1, characterized in that: The handle (2) is equipped with a micro switch (24) inside the side of the iron body (1) that controls whether the iron body (1) sprays steam. The handle (2) is provided with a steam button (25) that drives the micro switch (24) to open and close. The steam button (25) is rotatably mounted on the handle (2). When the steam button (25) is pressed, the steam button (25) squeezes the micro switch (24), and the iron body (1) will spray steam. When no force is applied to the steam button (25), the steam button (25) automatically resets and does not press the micro switch (24), at which time the iron body (1) will not spray steam; A locking button (26) is slidably mounted on the steam button (25). When the steam button (25) is pressed, sliding the locking button (26) will limit the reset of the steam button (25).

8. The anti-dry-burning iron according to claim 7, characterized in that: The locking button (26) includes a sliding block (261) and a locking rod (262). A fixing block (27) is provided inside the grip (2). The fixing block (27) has a locking groove (271) for the locking rod (262) to be inserted. When the locking rod (262) is inserted into the locking groove (271), the locking button (26) will limit the reset rotation of the steam button (25).

9. A dry-burning iron according to claim 8, characterized in that: The steam button (25) is provided with a snap-fit ​​protrusion (251), and the sliding block (261) is provided with a first snap-fit ​​groove (263) and a second snap-fit ​​groove (264) for the snap-fit ​​protrusion (251) to snap into. The first snap-fit ​​groove (263) and the second snap-fit ​​groove (264) are arranged at intervals along the sliding direction of the sliding block (261). When the latching protrusion (251) is latched into the first latching groove (263), the steam button (25) will automatically reset after being unforced, and steam will no longer be ejected; when the latching protrusion (251) is latched into the second latching groove (264), the locking rod (262) will be inserted into the locking groove (271) to lock the steam button (25), and steam will continue to be ejected.

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