CN112848778A

CN112848778A - Wallpaper stripping machine

Info

Publication number: CN112848778A
Application number: CN201911178747.5A
Authority: CN
Inventors: 张石锋; 耿路明; 闫明星; 胡瑞红
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2021-05-28
Also published as: WO2021104440A1

Abstract

The invention discloses a wallpaper stripping machine, which comprises: the wall paper heating device comprises a machine shell, a heating cavity and a heating cavity, wherein the machine shell comprises a bottom plate attached to wall paper and an upper cover far away from the wall paper, and a steam injection hole is formed in the bottom plate and can be matched with the wall paper to form the heating cavity; the water supply mechanism comprises a booster pump, the booster pump is provided with an inlet and an outlet which are opposite, and the inlet is connected with a water pipe used for communicating a water source; the heater is arranged in the shell and provided with an inlet end and an outlet end which are opposite, the inlet end is communicated with the outlet of the booster pump, and the heater can heat water pumped by the booster pump to form steam which is then injected into the heating cavity; and one end of the steam outlet switching mechanism is communicated with the outlet end, and the other end of the steam outlet switching mechanism is a steam outlet end communicated to the steam jet hole. The steam generator can quickly generate steam, reduces heat waste, and has higher safety performance when the whole machine is used.

Description

Wallpaper stripping machine

Technical Field

The invention relates to the technical field of decoration equipment, in particular to a wallpaper stripping machine.

Background

In house decoration, wallpaper or wall paper is a decoration material which is widely used. However, the lifetime of the wallpaper is limited, and after a certain number of years of use, the wallpaper may curl, break, etc. due to failure of the adhesive or exposure to moisture, etc., thereby affecting the aesthetic appearance. At this time, the decorating personnel can peel the old wallpaper from the wall by using the steam wall peeling machine and then paste new wallpaper again.

In general, a steam wallpaper peeling machine may include a water tank having a heater integrated therein, a main body operating with steam, a duct connected between the water tank and the main body for conveying steam, and the like. However, the current steam wallpaper peeling machine mainly has the following problems:

1. the existing wallpaper stripping machine heats water in a water tank to boiling completely to generate steam, so that the heating time is long and the steam generation is slow.

2. The length of the conduit for conveying the steam is long, and the conduit is directly exposed, so that the steam has much heat dissipation to the air. When the work is finished and the water in the water tank is still in a boiling state, the heat is wasted. In addition, the hot water tank is exposed outside, and the heat dissipation is fast. Overall, a great waste of heat is caused in many ways.

3. The steam delivery conduit is exposed, can be repeatedly bent and dragged during use, can accelerate the abrasion of the conduit, is easy to break through and has accidental puncture. When the conduit is damaged, steam may be directly sprayed on operators, and the danger is relatively high.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the wallpaper stripping machine which can quickly generate steam, reduce heat waste and simultaneously has higher safety performance when the whole machine is used.

The above object of the present invention can be achieved by the following technical solutions:

a wallpaper stripper comprising: the wall paper heating device comprises a machine shell, a heating cavity and a heating cavity, wherein the machine shell comprises a bottom plate attached to wall paper and an upper cover far away from the wall paper, and a steam injection hole is formed in the bottom plate and can be matched with the wall paper to form the heating cavity; the water supply mechanism comprises a booster pump, the booster pump is provided with an inlet and an outlet which are opposite, and the inlet is connected with a water pipe used for communicating a water source; the heater is arranged in the shell and provided with an inlet end and an outlet end which are opposite, the inlet end is communicated with the outlet of the booster pump, and the heater can heat water pumped by the booster pump to form steam which is then injected into the heating cavity; and one end of the steam outlet switching mechanism is communicated with the outlet end, and the other end of the steam outlet switching mechanism is a steam outlet end communicated to the steam jet hole.

In a preferred embodiment, the booster pump is disposed in the casing, and one end of the water pipe is connected to the inlet and the other end thereof protrudes out of the casing.

In a preferred embodiment, the booster pump and the heater are hermetically connected through a connecting pipe, the connecting pipe is further connected with a pressure relief mechanism, one end of the pressure relief mechanism is connected with the connecting pipe, and the other end of the pressure relief mechanism is communicated with the outside through the casing.

In a preferred embodiment, the heater comprises: the shell, the conductor, the heat-generating body, water supply connector, play water connection, sealing member, the sealing member sets up shell and conductor match department, the shell with be formed with flow channel between the conductor, flow channel's one side with water supply connector connects, the opposite side with it is connected to go out the water connection.

In a preferred embodiment, the heating element is a spiral heating wire, the heating element is threaded into the conductor, and a fluid flow channel formed between the conductor and the housing is a spiral flow channel.

In a preferred embodiment, the heating device further comprises a controller electrically connected to the heating element, and a temperature detection element electrically connected to the controller, wherein the temperature detection element is configured to detect an operating temperature of the heater, and the controller disconnects the connection between the heater and the power supply when the temperature detected by the temperature detection element exceeds a preset temperature range.

In a preferred embodiment, the heating device further comprises a controller electrically connected to the heating element, and a current detection element electrically connected to the controller, wherein the current detection element is configured to detect a current of the heating element, and the controller cuts off a connection between the heater and a power supply when the current detected by the current detection element exceeds a preset current range.

In a preferred embodiment, the conductor includes a main body portion extending into the housing and an extension portion located outside the housing, the main body portion and the housing form the flow channel by the sealing member, and the temperature detecting member and the current detecting member are fixed to the extension portion.

In a preferred embodiment, the water supply mechanism further comprises a filter disposed upstream of the heater.

In a preferred embodiment, the water supply mechanism further comprises a water inlet adapter mechanism, and the water inlet adapter mechanism comprises a first adapter body and a filter arranged in the first adapter body in a detachable connection mode.

In a preferred embodiment, the steam baffle is provided on the soleplate, and the steam baffle is opposite to the steam injection holes at a certain distance.

In a preferred embodiment, the bottom plate comprises a bottom wall and a side wall enclosed on the bottom wall, the bottom wall is the inner wall of the heating cavity, a groove is arranged on the bottom wall, a diversion step is formed at the interface position of the groove and the bottom wall, and the steam injection hole is arranged in the groove.

In a preferred embodiment, the steam injection hole is located at the center of the bottom wall.

In a preferred embodiment, the bottom plate comprises a bottom wall and a side wall surrounding the bottom wall, the side wall has a first side matching with the bottom wall and a second side matching with the wallpaper, and the second side is further provided with a sealing part.

In a preferred embodiment, a partition is further disposed between the upper cover and the bottom plate, the bottom plate includes a bottom wall and a side wall surrounding the bottom wall, a steam injection area is formed on the bottom wall, and the partition at least covers the steam injection area.

In a preferred embodiment, a first insulating layer is arranged between the partition and the bottom wall.

In a preferred embodiment, the heater outer surface is provided with a second insulating layer.

Advantageous effects

The wallpaper stripping machine provided in the embodiment of the application changes the heater arranged in the heating water tank and used for generating steam into the shell, starts the heater, can immediately heat the water flowing into the heater according to the use requirement, and quickly converts the immediately heated water into steam, and then utilizes the steam outlet switching mechanism to flow into the heating cavity with a short stroke, so that the wallpaper stripping operation is performed. Compared with a heating water tank in the prior art, the whole water tank is not required to be heated during use, the heated water quantity is added according to the current requirement (namely, the heating is carried out immediately), the heat waste phenomenon is greatly reduced, the time for generating steam is greatly shortened, the time for waiting for use by a user is shortened, and the user use experience is improved. In addition, because set up the heater in the host computer side as the removal end, what the water pipe between this host computer and the water source flowed through is normal atmospheric temperature water, even this water pipe subsequently appears breaking, also can not appear the steam and injure people's accident, the security when having improved this wall paper stripping machine and using.

Drawings

The invention is further described with reference to the following figures and embodiments.

FIG. 1 is a schematic view of a wallpaper stripper provided in one embodiment of the present application in an operational state;

FIG. 2 is a front view of a wallpaper stripper host provided in one embodiment of the present application;

FIG. 3 is a cross-sectional view of a host A-A of the wallpaper stripper provided in one embodiment of the present application;

FIG. 4 is a cross-sectional view of a host B-B of a wallpaper stripper provided in an embodiment of the present application;

FIG. 5 is a schematic illustration of a portion of a host wallpaper stripper provided in one embodiment of the present application;

FIG. 6 is a schematic diagram of a wallpaper stripper heater provided in one embodiment of the present application;

FIG. 7 is a cross-sectional view of a wallpaper stripper heater provided in one embodiment of the present application;

FIG. 8 is a schematic view of a base plate of a wallpaper stripper heater provided in one embodiment of the present application.

Description of reference numerals:

100. a host;

1. a power line;

2. a housing; 21. a base plate; 210. a flow guide step; 211. a groove; 212. a steam injection hole; 22. an upper cover; 220. a handle; 23. a steam baffle; 24. a spacer;

3. a heater; 30. a housing; 31. a conductor; 32. a heating element; 33. a water inlet joint; 34. a water outlet joint; 35. a first seal member; 36. a second seal member; 37. a temperature detection member; 38. a current detection element; 39. a spiral flow channel;

4. a connecting pipe;

5. a booster pump;

6. a water pipe;

7. a pressure relief mechanism; 70. a pressure relief vent;

8. a water inlet switching mechanism; 80. a first transfer body; 81. a first seal structure; 82. a filter;

9. a steam outlet switching mechanism; 90. a second adapting body; 91. a second seal structure; 92. a heat insulating sleeve;

200. a water source.

Detailed Description

The technical solutions of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments, it should be understood that these embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention, and various equivalent modifications of the present invention by those skilled in the art after reading the present invention fall within the scope of the appended claims.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The utility model provides a wall paper machine of peeling off, can produce steam rapidly in this application description, reduce the waste of heat, the complete machine has higher security performance when using simultaneously.

Referring to fig. 1 to 8, the wallpaper peeling machine provided in the embodiment of the present application will be described in detail. The wallpaper stripper may comprise: the water supply device comprises a machine shell 2, a water supply mechanism provided with a booster pump 5, a heater 3, a steam outlet switching mechanism 9 and some necessary connecting pieces, such as a water pipe 6 connected with a water source 200, an electric wire connected with a power supply and the like.

In this embodiment, the main body 100 of the wallpaper peeling machine may include at least a casing 2, a heater 3 and a steam outlet switching mechanism 9 disposed in the casing 2. The housing 2 and the components (i.e., the host 100) disposed in the housing 2 constitute a mobile terminal. When the wallpaper peeling machine is used, the main machine 100 is moved to spray steam on wallpaper at different positions, so that the wallpaper peeling function of the wallpaper peeling machine is realized.

In this embodiment, the casing 2 may be a relatively closed casing, which may include a bottom plate 21 attached to the wallpaper and a top cover 22 away from the wallpaper. The bottom plate 21 is provided with the steam injection holes 212, and when the wallpaper heating box is used, the bottom plate 21 is in contact with wallpaper and can form a steam heating cavity with the wallpaper.

In the present embodiment, the water supply mechanism is used to pump water from the water source 200 into the heater 3, i.e., to provide a driving force for the water flow. The water supply mechanism has opposing inlets and outlets. The inlet of the water supply mechanism is connected with a water pipe 6 for communicating with a water source 200, and the outlet of the booster pump 5 is connected with the heater 3. Specifically, the water supply mechanism may include a booster pump 5. The booster pump 5 may be in the form of an electronic pump which may be powered by the power cord 1. The electronic pump can provide a water pressure value of 3bar-5bar and a low-power pump with rated power of less than 18W.

In the present embodiment, the heater 3 is used to instantaneously heat the water flowing into the interior thereof. The specific heating form, parameter performance and the like of the heater 3 can be selected according to actual needs. The heater 3 has opposite inlet and outlet ends, wherein the inlet end is in communication with the outlet of the booster pump 5. When in use, the heater 3 supplies water pumped by the booster pump 5 to the heating element 32 therein to form hot steam. The amount and rate of the generated hot vapor depend on the flow rate of the booster pump 5 and the power of the heat generating body 32 in the heater 3.

Referring to fig. 6 to 7 in combination, the heater 3 may include: a shell 30, a conductor 31, a heating element 32, a water inlet joint 33, a water outlet joint 34 and a sealing element.

Wherein the sealing member is disposed at the coupling position of the outer shell 30 and the conductor 31, and a liquid flow channel is formed between the outer shell 30 and the conductor 31. One side of the liquid flow channel is connected with the water inlet joint 33, and the other side is connected with the water outlet joint 34.

The water inlet connection 33 and the water outlet connection 34 may be in the form of copper connections. The water inlet joint 33 may be fixed to the housing 30 by a screw connection, and the water outlet joint 34 may be fixed to the conductor 31 by a screw connection.

During the use process, the heating element 32 converts water into steam, which increases the internal pressure of the heater 3 to form the working pressure of the heater 3. Specifically, the operating pressure of the heater 3 depends mainly on the volume and power of the heat generating body 32. Specifically, the heating element 32 may be a spiral heating wire, the heating element 32 is threaded through the conductor 31, and a fluid flow channel formed between the conductor 31 and the housing 30 is a spiral flow channel 39.

The conductor 31 may be made of a material with better conductivity, such as an aluminum alloy material. The heating element 32 may be inserted into the conductor 31 by casting. A spiral groove 211 is formed at the periphery of the conductor 31, and the spiral groove 211 is engaged with the inner wall of the housing 30 to form the spiral flow passage 39.

When the heat exchanger is used, water enters the inlet flow guide section formed between the conductor 31 and the shell 30 from the water inlet connector 33, then enters the spiral flow channel 39, and flows out from the water outlet connector 34 through the outlet flow guide section on the conductor 31 after sufficient heat exchange. Since the heating body 32 is in the form of a spiral heating wire, it can rapidly and uniformly transfer heat to the conductive body 31. Furthermore, the liquid flow channel formed by the conductor 31 and the shell 30 is a spiral flow channel 39, and water flowing through the spiral flow channel 39 can greatly extend the flow path, so that the normal temperature water entering from the water inlet joint 33 can be reliably and efficiently converted into hot steam after flowing through the spiral flow channel 39.

Further, the conductor 31 includes a main body portion extending into the housing 30 and an extension portion located outside the housing 30, and the main body portion and the housing 30 form the flow channel by the sealing member. In particular, the seal may include a first seal 35 and a second seal 36.

Wherein the first sealing member 35 may be disposed at a mating position of the body portion adjacent to the water inlet joint 33 and the housing 30. Specifically, the first sealing member 35 may be a hollow swivel type as a whole, and a side thereof facing the main body portion may be provided with an annular groove 211. The body portion may be provided with an annular projection that mates with the annular recess 211. When the first seal member 35 and the main body portion are fitted in the form of a projection through the groove 211, reliability and sealability of the fitting position can be secured. On the other side of the annular recess 211, against the housing 30. In particular, the inner surface of the casing 30 may be provided with an annular projection cooperating with the first seal 35. When both sides of the first seal 35 abut against the annular protrusions of the conductor 31 and the housing 30, the engaging positions of the two can be reliably sealed.

The second seal 36 may be disposed proximate the mating location of the extension of the outlet fitting 34 with the housing 30. Specifically, the second sealing member 36 may be a hollow rotary body, and a side facing the housing 30 may be provided with an annular protrusion. The housing 30 may be provided with an annular groove 211 that mates with the annular protrusion. When the second sealing member 36 is engaged with the housing 30 in the form of a protrusion via the recess 211, reliability and sealing performance of the engagement position can be ensured. The other side of the second seal 36 may abut the extension. The inner side of the second seal 36 may be arranged at the transition of the extension and the body portion. To facilitate reliable positioning of the second seal 36, a limit step may be formed at the transition location. In addition, the second sealing member 36 may fixedly connect the conductor 31 and the housing 30 by a connector, for example, the conductor 31 and the housing 30 may be fixedly connected by a bolt.

Further, the wallpaper stripping machine may further include a controller electrically connected to the heating element 32, and a temperature detecting element 37 electrically connected to the controller. The temperature detecting part 37 is used for detecting the working temperature of the heater 3, and the controller disconnects the connection relation between the heater 3 and the power supply when the temperature detected by the temperature detecting part 37 exceeds a preset temperature range.

In the present embodiment, the temperature detector 37 is provided to obtain the operating temperature of the heater 3. The operating temperature of the heater 3 may be the temperature of the heating element 32, the temperature of the conductor 31, or a temperature directly related to the temperature of the heating element 32 to express the magnitude of the temperature of the heating element 32, and the specific application is not limited thereto. Generally, the heating element 32 has a predetermined temperature range, which may be, for example, 120 degrees celsius to 170 degrees celsius, when the heater 3 is normally operated. The predetermined temperature range may be pre-stored in the controller. When the temperature detected by the temperature detecting member 37 exceeds a preset temperature range, the controller may cut off the communication between the heater 3 and the power supply to stop the operation of the heater 3, thereby ensuring that the heater 3 does not operate at an excessive temperature. Specifically, the temperature sensing member 37 may be fixed to an extension portion of the housing 30, thereby facilitating repair and replacement.

Further, the wallpaper stripping machine may further include a controller electrically connected to the heating element 32, and a current detecting element 38 electrically connected to the controller. The current detector 38 is used for detecting the current of the heating element 32, and the controller cuts off the connection between the heater 3 and the power supply when the current detected by the current detector 38 exceeds a preset current range.

In the present embodiment, the current detector 38 is provided to obtain the operating current of the heating element 32. In general, the heating element 32 has a predetermined current range when the heater 3 normally operates, and specifically, the predetermined current range may be different according to the power, voltage, and the like of the heater 3, and the present application is not limited thereto. The preset current range may be pre-stored in the controller. When the current detected by the current detector 38 exceeds the predetermined current range, the controller may cut off the communication between the heater 3 and the power supply to stop the operation of the heater 3, thereby protecting the heater 3 from safe operation. The current sensing member 38 is fixed to an extension of the housing 30 to facilitate maintenance and replacement.

In one embodiment, the booster pump 5 is disposed in the casing 2, and one end of the water pipe 6 is connected to the inlet and the other end extends out of the casing 2.

In the present embodiment, the booster pump 5 may be provided in the casing 2. Specifically, the booster pump 5 may be a small power, small volume electronic pump rated at 10W. When the electronic pump is arranged in the casing 2, the electronic pump is beneficial to ensuring that the size of the casing 2 is not too large, and the weight of the whole machine can be controlled, so that the burden of a user during operation is reduced.

In the present embodiment, the form of the water source 200 is not particularly required. For example, the water source 200 may be a bucket of water; or a tap water supply end, namely, one end of the water pipe 6 is directly connected with a tap water outlet end; alternatively, the present application may be in other forms and should not be limited specifically herein.

In one embodiment, the booster pump 5 and the heater 3 are hermetically connected by a connection pipe 4. The connecting pipe 4 is further connected with a pressure relief mechanism 7, one end of the pressure relief mechanism 7 is connected with the connecting pipe 4, and the other end of the pressure relief mechanism 7 is communicated with the outside through the casing 2.

In the present embodiment, the pressure relief mechanism 7 is mainly used to control the pressure in the heater 3 and the pipeline communicated with the heater 3 so as not to be too large. During the heating of the heater 3, a fluctuating pressure may be generated, which may affect the normal operation of the heater 3 itself, as well as the core components such as the booster pump 5 communicating with the heater 3. Particularly, when the internal pressure of the heater 3 is excessively high, the excessively high pressure may back-charge the booster pump 5, so that the booster pump 5 may not operate normally.

When the pressure relief mechanism 7 is disposed on the connecting pipe 4 between the pressure relief mechanism 7 and the booster pump 5, and when the pressure in the connecting pipe 4 connected to the heater 3 fluctuates greatly, for example, the pressure rises to the opening pressure of the pressure relief mechanism 7, the rising excess pressure can be discharged through the pressure relief mechanism 7, so as to ensure the normal and reliable operation of the core components such as the heater 3 and the booster pump 5. Specifically, the pressure relief structure may be in the form of a pressure relief valve, and the opening pressure of the pressure relief valve may be selected according to the actual operation conditions of the heater 3 and the like, which is not specifically limited herein.

In one embodiment, the wallpaper stripper may further comprise a filter 82. The filter 82 is disposed upstream of the heater 3. For example, the filter 82 may be provided in the water pipe 6 or an extended flow passage communicating with the water pipe 6.

In the present embodiment, a filter 82 may be provided upstream of the heater 3 in order to extend the service life of the heater 3 and prevent the occurrence of a fouling phenomenon inside the heater. The specific function of the filter 82 can be adaptively set according to the actual water quality requirement. For example, the filter 82 may be used to block particulate impurities in the water and calcium-magnesium hard ions, etc., which are likely to cause scale in the water, from entering the heater 3.

Specifically, the inlet of the booster pump 5 may be provided with a water inlet adapter mechanism 8, and the water inlet adapter mechanism 8 is used for connecting the water pipe 6 with the inlet of the booster pump 5.

As shown in fig. 5, the water inlet adapter 8 may include: a first adapter body 80, and a filter 82 provided in said first adapter body 80 by means of a detachable connection. Because the filter 82 is detachably connected to the water inlet adapter 8, the filter 82 can be easily replaced after a period of use. The first adapter body 80 may comprise two removable portions and the filter 82 may be positioned where the two portions are mated. A portion of the first adapter body 80 may be a connector, the end remote from the filter 82 for connecting to the water pipe 6; and the other part is connected with the booster pump 5 at the end far away from the filter 82. At the position where the first adaptor body 80 is connected to the booster pump 5, the detachable two parts may be provided with a first sealing structure 81 at the coupling position.

Specifically, the first sealing structure 81 may be in the form of a sealing ring, and the specific number, shape, size, and the like of the sealing ring may be set according to the assembly requirement, which is not specifically limited herein. High-temperature-resistant silica gel sealing rings, sealing sleeves, silica gel tubes and the like can be selected, and the pressure value of the joint can be guaranteed to be 6.5Bar without leakage.

In addition, the wallpaper stripping machine can further comprise a container for containing water. The filter 82 may be disposed in the container or in the water pipe 6. Of course, the filter 82 may not be provided when the water source 200 has a particularly good quality or is pure filtered water.

The wallpaper stripping machine is provided with a steam outlet switching mechanism 9, one end of the steam outlet switching mechanism 9 is communicated with the outlet end, and the other end of the steam outlet switching mechanism 9 is communicated to the steam jet hole 212 and is used for guiding steam generated by the heater 3 to the steam jet hole of the bottom plate 21.

As shown in fig. 5, in particular, the steam outlet switching mechanism 9 may include: a hollow second adapter body 90, and a heat insulating sleeve 92 for fixing the second adapter body 90 to the heater 3. Wherein the second adapter body 90 may include a first portion and a second portion that mate via a detachable connection. The second part fixes the steam outlet switching mechanism 9 on the heater 3 through the heat insulation sleeve 92. Further, the two detachable parts may be provided with a second sealing structure 91 at the mating position.

Specifically, the second sealing structure 91 may be in the form of a sealing ring, and the specific number, shape, size, and the like of the sealing ring may be set according to the assembly requirement, which is not specifically limited herein. In order to ensure the reliability of the sealing of the connection position, the second sealing structure 91 can adopt the forms of a high-temperature-resistant silica gel sealing ring, a sealing sleeve, a silica gel tube and the like, and the connection position can ensure that the pressure value reaches 6.5Bar and does not leak.

In the embodiment, the heater 3 arranged in the heating water tank for generating steam is changed into the heater 3 arranged in the machine shell 2, the heater 3 is started, water flowing into the heater 3 can be instantly heated according to use requirements, and after the instantly heated water is rapidly converted into steam, the steam flows into the heating water chamber in a short stroke by using the steam outlet switching mechanism 9, and the wallpaper is peeled. Compared with a heating water tank in the prior art, the whole water tank is not required to be heated during use, the heated water quantity is added according to the current requirement (namely, the heating is carried out immediately), the heat waste phenomenon is greatly reduced, the time for generating steam is greatly shortened, the time for waiting for use by a user is shortened, and the user use experience is improved. In addition, because the heater 3 is arranged at the side of the main machine 100 as a moving end, the water pipe 6 between the main machine 100 and the water source 200 is normal temperature water, even if the water pipe 6 is subsequently broken, the accident that steam hurts people can not occur, and the safety of the wallpaper stripping machine in use is improved

In one embodiment, as shown in fig. 8, a steam baffle 23 is provided on the bottom plate 21, and the steam baffle 23 is spaced apart from and opposite to the steam injection holes 212.

In the embodiment, the steam baffle plate 23 is arranged on the moving path of the steam sprayed from the steam spraying holes 212, so that the steam sprayed from the steam spraying holes 212 can be guided to diffuse around along the horizontal plane where the steam baffle plate 23 is located, on one hand, the direct spraying of high-temperature steam can be prevented, and the accidents of hurting people can be prevented, and on the other hand, the uniform diffusion of the steam is facilitated.

Wherein, a certain distance between the steam baffle plate 23 and the steam jet hole 212 can be optimized according to the comprehensive factors of the actual steam pressure, the size of the wallpaper stripping machine, the size of the steam jet hole 212 and the like. For example, the certain distance may be between 3 mm and 5 mm. The steam baffle 23 may be a long plate with a certain width, and two ends of the plate may be fixed on the bottom plate 21 by a fixed connection. The width of the plate body may be equal to or close to the diameter of the steam injection holes 212.

As shown in fig. 8, in one embodiment, the bottom plate 21 includes a bottom wall and a side wall surrounding the bottom wall, the bottom wall is an inner wall of the heating cavity, a groove 211 is disposed on the bottom wall, a diversion step 210 is formed at a position where the groove 211 meets the bottom wall, and the steam injection hole 212 is disposed in the groove 211.

In the present embodiment, the bottom plate 21 is provided with the inward concave grooves 211, so that the bottom plate 21 is provided with the stepped diffusion chambers having different diffusion areas, and the steam ejected from the steam ejection holes 212 can uniformly fill the entire heating chamber with high efficiency. Further, the steam injection hole 212 may be located at the center of the bottom wall in order to improve the uniformity of the steam diffusion.

In addition, a pressure relief hole 70 is further formed in the bottom plate 21, and the pressure relief hole 70 can communicate with the pressure relief valve. When the relief valve is opened, the pressure inside the heater 3 can be discharged to the outside through the relief hole 70.

In one embodiment, the side walls of the base plate 21 have a first side for engaging the bottom wall and a second side for engaging the wallpaper, the second side further having a seal disposed thereon. Through setting up this sealing, can guarantee the leakproofness of this bottom plate 21 and wall paper contact position, prevent that high temperature steam from outwards revealing through bottom plate 21 and wall paper cooperation position. Specifically, the sealing portion may be made of rubber, silicone, or the like that can withstand a certain temperature and has a certain deformation capability, and of course, the material of the sealing portion may also be in other forms, and the application is not limited in particular herein.

In this embodiment, the upper cover 22 is provided with a handle 220 for the user to hold and move the main body 100. A spacer 24 may be further provided between the upper cover 22 and the bottom plate 21. The bottom wall is formed with a steam injection area, and the partition 24 covers at least the steam injection area.

When the partition 24 is provided, the steam spray area grip 220 can be effectively partitioned, thereby preventing excessive temperature on the grip 220. In order to further improve the insulation effect and at the same time keep the heated steam in the heating chamber warm, a first insulation layer may be arranged between said insulation 24 and said bottom wall.

In addition, in order to prevent the upper cover 22 from over-temperature, especially the over-temperature at the handle 220, a second thermal insulation layer may be further provided on the outer surface of the heater 3. When the second heat insulation layer is arranged on the outer surface of the heater 3, the heat insulation of the heater 3 is facilitated, and the temperature is dissipated outwards too quickly in the heating process.

It should be noted that, in the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no precedence between the two is intended or should be construed to indicate or imply relative importance. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.

The above embodiments in the present specification are all described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment is described with emphasis on being different from other embodiments.

The above description is only a few embodiments of the present invention, and although the embodiments of the present invention are described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A wallpaper stripper, comprising:

the wall paper heating device comprises a machine shell, a heating cavity and a heating cavity, wherein the machine shell comprises a bottom plate attached to wall paper and an upper cover far away from the wall paper, and a steam injection hole is formed in the bottom plate and can be matched with the wall paper to form the heating cavity;

the water supply mechanism comprises a booster pump, the booster pump is provided with an inlet and an outlet which are opposite, and the inlet is connected with a water pipe used for communicating a water source;

the heater is arranged in the shell and provided with an inlet end and an outlet end which are opposite, the inlet end is communicated with the outlet of the booster pump, and the heater can heat water pumped by the booster pump to form steam which is then injected into the heating cavity;

and one end of the steam outlet switching mechanism is communicated with the outlet end, and the other end of the steam outlet switching mechanism is a steam outlet end communicated to the steam jet hole.

2. The wallpaper stripper as recited in claim 1, wherein said booster pump is disposed in said housing, one end of said water pipe being connected to said inlet and the other end extending out of said housing.

3. The wallpaper stripping machine according to claim 2, wherein the booster pump is connected with the heater in a sealing manner through a connecting pipe, the connecting pipe is further connected with a pressure relief mechanism, one end of the pressure relief mechanism is connected with the connecting pipe, and the other end of the pressure relief mechanism is communicated with the outside through the shell.

4. The wallpaper stripper as recited in claim 1 or 3, wherein the heater comprises: casing, conductor, heating body, water inlet joint, water outlet joint and sealing piece

The sealing element is arranged at the joint of the shell and the conductor, a liquid flow channel is formed between the shell and the conductor, one side of the liquid flow channel is connected with the water inlet connector, and the other side of the liquid flow channel is connected with the water outlet connector.

5. The wallpaper stripping machine according to claim 4, wherein the heating element is a spiral heating wire, the heating element is threaded through the conductor, and a fluid flow channel formed between the conductor and the housing is a spiral flow channel.

6. The wallpaper stripping machine according to claim 4, further comprising a controller electrically connected with the heating element, a temperature detecting element electrically connected with the controller,

the temperature detection piece is used for detecting the working temperature of the heater, and the controller disconnects the connection relation between the heater and the power supply under the condition that the temperature detected by the temperature detection piece exceeds a preset temperature range.

7. The wallpaper stripping machine according to claim 4, further comprising a controller electrically connected with the heating element, a current detecting element electrically connected with the controller,

the current detection piece is used for detecting the current of the heating body, and the controller cuts off the communication relation between the heater and the power supply under the condition that the current detected by the current detection piece exceeds a preset current range.

8. The wallpaper stripper as claimed in claim 6 or 7, wherein said conductor comprises a main body portion extending into said housing and an extension portion located outside said housing, said main body portion and said housing cooperating to form said flow channel through said sealing member, said temperature detecting member and said current detecting member being fixed to said extension portion.

9. The wallpaper stripper as recited in claim 1, wherein the water supply mechanism further comprises a filter, the filter being disposed upstream of the heater.

10. The wallpaper stripper as recited in claim 9, wherein the water supply mechanism further comprises a water inlet adapter mechanism, the water inlet adapter mechanism comprising a first adapter body, and a filter disposed in the first adapter body by a detachable connection.

11. The wallpaper stripper as recited in claim 1, wherein said base plate is provided with a steam baffle, said steam baffle being spaced a distance opposite said steam injection holes.

12. The wallpaper stripper as defined in claim 1, wherein the bottom plate comprises a bottom wall and a side wall enclosed on the bottom wall, the bottom wall is an inner wall of the heating cavity, a groove is arranged on the bottom wall, a diversion step is formed at a position where the groove is intersected with the bottom wall, and the steam injection hole is arranged in the groove.

13. The wallpaper stripper as recited in claim 12, wherein said steam injection hole is located in a center of said bottom wall.

14. The wallpaper stripper as recited in claim 1, wherein the base plate comprises a bottom wall and a side wall surrounding the bottom wall, the side wall having a first side for engaging the bottom wall and a second side for engaging the wallpaper, the second side further having a seal disposed thereon.

15. The wallpaper stripper as recited in claim 1, further comprising a partition member disposed between the top cover and the bottom plate, wherein the bottom plate comprises a bottom wall and a side wall surrounding the bottom wall, a steam spraying area is formed on the bottom wall, and the partition member at least covers the steam spraying area.

16. The wallpaper stripper as recited in claim 15, wherein a first layer of insulation is disposed between the partition and the bottom wall.

17. The wallpaper stripper as recited in claim 1, wherein the heater outer surface is provided with a second layer of insulation.