Display screen waterproof box and water purifier comprising same

Abstract

The utility model provides a display screen waterproof box and a water purifier including the same, the display screen waterproof box comprises a box body and a first sealing member, the box body comprises a back plate, the back plate is provided with a flat cable hole, the first sealing member is arranged in the flat cable hole in a penetrating manner, and the projection of the first sealing member in the axial direction of the flat cable hole completely covers the flat cable hole. The first sealing element is detachably connected to the back plate, a through hole for a cable of the display screen to penetrate through is formed in the first sealing element, and the cable is in interference fit with the through hole. The water purifier comprises the display screen waterproof box. By the adoption of the structure, the first sealing piece can completely coincide with the edge of the wire arranging hole, so that a gap allowing water vapor to pass through is reduced as much as possible, and the sealing effect between the first sealing piece and the wire arranging hole is guaranteed. Meanwhile, the hole wall of the through hole of the first sealing piece can be tightly attached to the cable, a gap allowing water vapor to pass through is reduced as much as possible, and therefore the sealing effect between the first sealing piece and the cable is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of water purifier, especially a display screen waterproof box and a water purifier comprising the same. BACKGROUND

[0002] With the improvement of people's living standards, water purifiers have been widely used in families and commercial places. As an important part of the water purifier, the display screen is used to display key information such as water quality, filter core state, and operation mode, and its stability is crucial. However, the sealing effect of the display screen wire interface of the existing water purifier is often unsatisfactory.

[0003] Since the water purifier is usually installed in a humid environment, and the cable of the display screen needs to be connected to the external power equipment through the wire hole of the display screen, water vapor is easy to enter through the gap between the cable and the wire hole, causing signal transmission interruption, poor contact, and even short circuit failure. The poor sealing effect between the cable and the wire hole will also cause the electronic components at the wire interface to be corroded, further reducing the reliability and service life of the display screen. SUMMARY

[0004] The technical problem to be solved by the utility model is to overcome the defect of poor sealing effect of the display screen wire interface in the prior art, and to provide a display screen waterproof box and a water purifier comprising the same.

[0005] The utility model solves the above technical problems by the following technical scheme:

[0006] The utility model provides a display screen waterproof box, which comprises a box body and a first sealing element, the box body comprises a back plate, a wire hole is formed in the back plate, the first sealing element is arranged through the wire hole, and the projection of the first sealing element on the wire hole axis direction completely covers the wire hole, the first sealing element is detachably connected to the back plate, the first sealing element is provided with a through hole for the cable of the display screen to pass through, and the cable and the through hole are in interference fit.

[0007] In this scheme, the first sealing element is arranged through the wire hole and completely covers the wire hole, which can make the first sealing element completely coincide with the edge of the wire hole, so as to minimize the gap that allows water vapor to pass through, thereby ensuring the sealing effect between the first sealing element and the wire hole. At the same time, the interference fit between the through hole on the first sealing element and the cable can make the through hole wall of the first sealing element tightly adhere to the cable, also minimizing the gap that allows water vapor to pass through, thereby ensuring the sealing effect between the first sealing element and the cable.

[0008] Preferably, the first sealing member comprises a blocking portion arranged in the wire hole, one end of the blocking portion is a first extending end, the first extending end extends outward from the wire hole and around the wire hole to form a first protruding portion, and the first protruding portion is tightly attached to the outer wall of the back plate on one side thereof facing the wire hole; and / or the other end of the blocking portion is a second extending end, the second extending end extends inward into the wire hole and around the wire hole to form a second protruding portion, and the second protruding portion is tightly attached to the inner wall of the back plate on one side thereof facing the wire hole.

[0009] In the present scheme, the presence of the first protruding portion makes water vapor entering the inside of the display screen waterproof box need to pass between the first protruding portion and the outer wall of the back plate, and since the first protruding portion extends around, it is equivalent to increasing the distance of water vapor to the wire hole, and the first protruding portion tightly attached to the outer wall of the back plate is equivalent to further reducing the gap allowing water vapor to pass, thereby achieving the purpose of further improving the sealing effect of the wire hole. In addition, even if a small amount of water vapor passes through the wire hole, since the second protruding portion extends around, it is equivalent to increasing the distance of the small amount of water vapor to the inside of the box, and the second protruding portion tightly attached to the inner wall of the back plate is equivalent to further reducing the gap allowing water vapor to pass, thereby ensuring that even if water vapor passes through the wire hole, it can reduce the possibility of water vapor eroding the elements inside the box.

[0010] Preferably, the extending length of the first extending end is longer than the extending length of the second extending end; and / or the side of the second protruding portion facing away from the wire hole is provided with a guide sliding surface inclined toward the edge of the wire hole.

[0011] In the present scheme, the extending length of the first extending end is the length of the first protruding portion, which is the main sealing structure of the wire hole sealing, and the extending length of the second extending end is the length of the second protruding portion, which plays a guarantee role when the first protruding portion fails. The extending length of the first extending end is longer than the extending length of the second extending end, which can facilitate the installation of the second sealing member while ensuring the sealing effect of the first extending end. In addition, the side of the second protruding portion facing away from the wire hole is provided with a guide sliding surface, which can further improve the convenience of installing the first sealing member.

[0012] Preferably, the back plate is further provided with a burning end hole in communication with the terminal of the burning program, and the display screen waterproof box further comprises a second sealing member arranged in the burning end hole, and the projection of the second sealing member on the axis direction of the burning end hole completely covers the burning end hole. The second sealing member is detachably connected to the back plate, and the side of the second sealing member facing the terminal of the burning program is provided with a blind hole for the terminal of the burning program to pass through.

[0013] In the scheme, the detachable connection of the second sealing member to the back plate can ensure sealing when burning is not needed and facilitate burning when burning is needed. The setting of the burning terminal hole at the back of the display screen waterproof box can avoid repeated disassembly and assembly of the display screen when burning, thereby avoiding damage to the original sealing structure. The complete coverage of the second sealing member on the edge of the burning terminal hole can make the second sealing member completely coincide with the edge of the burning terminal hole, reducing the possibility of water vapor penetrating into the burning terminal hole. The blind hole can be sleeved on the terminal of the burning program, thereby protecting the terminal of the burning program.

[0014] Preferably, the second sealing member comprises a sealing body and a handle, the sealing body is arranged through the burning terminal hole, and the projection of the sealing body on the axis direction of the burning terminal hole completely covers the burning terminal hole, and the handle is connected to one side of the sealing body facing the outside. And / or, a first clamping member is arranged on the side surface of the second sealing member, a second clamping member is arranged on the inner wall of the back plate facing the burning terminal hole, and the first clamping member and the second clamping member are clamped and matched.

[0015] In the scheme, the handle arranged on the second sealing member can facilitate the application of force to pull out or press the second sealing member. In addition, the first clamping member and the second clamping member arranged on the second sealing member and the back plate respectively can improve the connection stability of the second sealing member.

[0016] Preferably, the box body further comprises a cover plate and a side plate, the cover plate, the side plate and the back plate form a closed containing cavity, and the containing cavity is used for containing a display screen assembly; the back plate is provided with a groove along the outer contour thereof, and the display screen waterproof box further comprises a third sealing member arranged in the groove, and the third sealing member is used for abutting against the cover plate.

[0017] In the scheme, the cooperation of the groove arranged on the back plate and the third sealing member can make the penetration path of water vapor between the cover plate and the back plate become complex, thereby improving the sealing effect.

[0018] Preferably, the cross section of the third sealing member is Y-shaped, the lower end of the third sealing member is inserted into the groove, and the upper end of the third sealing member abuts against the cover plate.

[0019] In the scheme, the insertion of the lower end of the third sealing member, i.e. the lower end of the Y-shaped third sealing member, into the groove is beneficial to reduce the gap between the third sealing member and the groove, and the V-shaped upper end of the Y-shaped third sealing member is deformed under the pressing of the cover plate, thereby increasing the contact area of the third sealing member with the cover plate and more closely fitting the inner wall surface of the cover plate, and achieving further improvement of the sealing effect.

[0020] Preferably, the outer side wall of the box body is provided with a plurality of connecting portions, each of the connecting portions is provided with a connecting hole, and the connecting hole is used for fixing the display screen waterproof box.

[0021] In the present scheme, the connecting part can facilitate installation and fixation of the display screen waterproof box.

[0022] Preferably, at least one of the connecting parts is provided with a dovetail groove, the short side of the dovetail groove faces the box body, the long side of the dovetail groove faces outward, and an opening is provided in communication with the dovetail groove.

[0023] In the present scheme, the long side of the dovetail groove faces outward and the short side faces inward, which facilitates the entire display screen waterproof box to be pushed in for installation, improving the convenience and reliability of installation.

[0024] The utility model discloses further provide a water purifier, it includes the display screen waterproof box as described above.

[0025] In the present scheme, the first sealing member is disposed through the wire arrangement hole and completely covers the wire arrangement hole, which can make the first sealing member completely coincide with the edge of the wire arrangement hole, so as to minimize the gap allowing water vapor to pass through, thereby ensuring the sealing effect between the first sealing member and the wire arrangement hole. At the same time, the interference fit between the through hole on the first sealing member and the cable can make the through hole wall of the first sealing member tightly adhere to the cable, also minimizing the gap allowing water vapor to pass through, thereby ensuring the sealing effect between the first sealing member and the cable.

[0026] The utility model discloses the positive progress effect is in at:

[0027] The display screen waterproof box and the water purifier comprising the same of the utility model, by the first sealing member is disposed through the wire arrangement hole and completely covers the wire arrangement hole, which can make the first sealing member completely coincide with the edge of the wire arrangement hole, so as to minimize the gap allowing water vapor to pass through, thereby ensuring the sealing effect between the first sealing member and the wire arrangement hole. At the same time, the interference fit between the through hole on the first sealing member and the cable can make the through hole wall of the first sealing member tightly adhere to the cable, also minimizing the gap allowing water vapor to pass through, thereby ensuring the sealing effect between the first sealing member and the cable. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is the structure schematic diagram of the display screen waterproof box of the utility model embodiment after installing PCB board

[0029] Figure 2 It is the structure schematic diagram of the display screen waterproof box of the utility model embodiment without installing PCB board

[0030] Figure 3 It is the perspective view of the first sealing member of the utility model embodiment

[0031] Figure 4 It is the perspective view of the second sealing member of the utility model embodiment

[0032] Figure 5 A perspective view of a third sealing member according to an embodiment of the present application

[0033] Figure 6 A sectional view of the third sealing member according to an embodiment of the present application

[0034] Figure 7 A back structure schematic view of the display screen waterproof box according to an embodiment of the present application

[0035] Figure 8 A perspective view of a display screen waterproof box according to an embodiment of the present application Figure 2 An enlarged view of the middle circle part

[0036] Figure 9 A sectional view of the display screen waterproof box according to an embodiment of the present application

[0037] Figure 10 An enlarged view of the middle circle part Figure 9 An enlarged view of the middle circle part

[0038] Explanation of reference signs:

[0039] Display screen waterproof box 100

[0040] Box body 1

[0041] Side plate 11

[0042] Back plate 12

[0043] Wire arranging hole 121

[0044] Burning end hole 122

[0045] Accommodation cavity 13

[0046] Boss 131

[0047] Positioning column 132

[0048] Second clamping member 14

[0049] Groove 15

[0050] Connecting part 16

[0051] Connecting hole 161

[0052] Dovetail groove 162

[0053] First sealing member 2

[0054] Through hole 21

[0055] Plugging part 22

[0056] First protruding part 221

[0057] Second protruding part 222

[0058] Guide sliding surface 223

[0059] Second sealing member 3

[0060] Blind hole 31

[0061] Sealing body 32

[0062] Handle 33

[0063] First clamping member 34

[0064] Third sealing member 4

[0065] PCB board 200 DETAILED DESCRIPTION

[0066] The utility model will be described below in a preferred embodiment and in combination with the drawings to make the utility model clearer and more complete.

[0067] As Figures 1-10 shown, the embodiment provides a display screen waterproof box 100, which comprises a box body 1 and a first sealing member 2, the box body 1 comprises a cover plate (not shown in the figure), a side plate 11 and a back plate 12, the cover plate, the side plate 11 and the back plate 12 enclose a containing cavity 13, the containing cavity 13 is used for placing a display screen assembly, and the display screen assembly comprises a cable. A wire arranging hole 121 is formed in the back plate 12, the first sealing member 2 is arranged through the wire arranging hole 121, and the projection of the first sealing member 2 on the axis direction of the wire arranging hole 121 completely covers the wire arranging hole 121, the first sealing member 2 is detachably connected to the back plate 12, the first sealing member 2 is provided with a through hole 21 for the cable of the display screen to pass through, and the cable and the through hole 21 are in interference fit.

[0068] In this way, the first sealing member 2 arranged through the wire arranging hole 121 and completely covering the wire arranging hole 121 can make the first sealing member 2 completely coincide with the edge of the wire arranging hole 121, so as to minimize the gap allowing water vapor to pass through, thereby ensuring the sealing effect between the first sealing member 2 and the wire arranging hole 121. Meanwhile, the interference fit between the through hole 21 on the first sealing member 2 and the cable can make the hole wall of the through hole 21 of the first sealing member 2 tightly adhere to the cable, also minimizing the gap allowing water vapor to pass through, thereby ensuring the sealing effect between the first sealing member 2 and the cable.

[0069] In the embodiment, the first sealing member 2 is a sealing block, and can also be a sealing ring, preferably a sealing block, which has higher structural strength. The material of the first sealing member 2 can be plastic or rubber. Preferably, rubber material is selected. As Figure 3 shown, the first sealing member 2 comprises a plugging part 22, the plugging part 22 is arranged in the wire arranging hole 121, one end of the plugging part 22 is a first extension end, the first extension end extends outward from the wire arranging hole 121 and extends to the periphery of the wire arranging hole 121 to form a first protruding part 221, and the side of the first protruding part 221, which faces the wire arranging hole 121, tightly adheres to the outer wall of the back plate 12.

[0070] Alternatively, the other end of the blocking part 22 is a second extending end, the second extending end extends inwardly from the wire hole 121 and extends around the wire hole 121 to form a second protruding part 222, the side of the second protruding part 222 facing the wire hole 121 is close to the inner wall of the back plate 12.

[0071] Preferably, the first protruding part 221 and the second protruding part 222 are provided simultaneously.

[0072] Thus, as shown in Figure 10 , the arrow is the path of water vapor entering the inside of the waterproof box 100 of the display screen. Due to the existence of the first protruding part 221, water vapor entering the inside of the waterproof box 100 of the display screen needs to pass between the first protruding part 221 and the outer wall of the back plate 12, and due to the extension of the first protruding part 221 around, it is equivalent to increasing the distance of water vapor to reach the wire hole 121, and the close of the first protruding part 221 to the outer wall of the back plate 12 is equivalent to further reducing the gap allowing water vapor to pass, thereby achieving the purpose of further improving the sealing effect of the wire hole 121. In addition, even if a small amount of water vapor passes through the wire hole 121, due to the extension of the second protruding part 222 around, it is equivalent to increasing the distance of the small amount of water vapor to reach the inside of the box body 1, and the close of the second protruding part 222 to the inner wall of the back plate 12 is equivalent to further reducing the gap allowing water vapor to pass, thereby ensuring that even if water vapor passes through the wire hole 121, it can reduce the possibility of water vapor eroding the elements inside the box body 1.

[0073] In the present embodiment, the extension length of the first extending end is longer than the extension length of the second extending end. The extension length of the first extending end is the length of the first protruding part 221, which is the main sealing structure of the wire hole 121, and the extension length of the second extending end is the length of the second protruding part 222, which plays a guarantee role when the first protruding part 221 fails. The extension length of the first extending end is longer than the extension length of the second extending end, which can facilitate the installation of the second sealing part 3 while ensuring the sealing effect of the first extending end.

[0074] In the present embodiment, as shown in Figure 3 and Figure 10 , the side of the second protruding part 222 facing away from the wire hole 121 is provided with a guide sliding surface 223, and the guide sliding surface 223 is inclined toward the edge of the wire hole 121. The side of the second protruding part 222 facing away from the wire hole 121 is provided with a guide sliding surface 223, which can further improve the convenience of installing the first sealing part 2.

[0075] Specifically, as shown in Figure 2 and Figure 7As shown, the back plate 12 is also provided with a burning terminal hole 122, which is in communication with the terminal of the burning program. The waterproof box 100 also comprises a second sealing member 3, which is arranged through the burning terminal hole 122, and the projection of the second sealing member 3 on the axis direction of the burning terminal hole 122 completely covers the burning terminal hole 122. The second sealing member 3 is detachably connected to the back plate 12. The side of the second sealing member 3 facing the terminal of the burning program is provided with a blind hole 31 for the terminal of the burning program to pass through.

[0076] In this way, the detachable connection of the second sealing member 3 to the back plate 12 can ensure that the sealing is not required when burning is not required, and the burning is facilitated when burning is required. The burning terminal hole 122 is arranged at the back of the waterproof box 100, which can avoid repeatedly disassembling the display screen when burning, thereby avoiding damaging the original sealing structure. The complete covering of the burning terminal hole 122 by the second sealing member 3 can make the second sealing member 3 completely coincide with the edge of the burning terminal hole 122, thereby reducing the possibility of water vapor penetrating into the burning terminal hole 122. The blind hole 31 can be sleeved on the terminal of the burning program, thereby protecting the terminal of the burning program.

[0077] In the embodiment, as shown in Figure 4 The second sealing member 3 comprises a sealing body 32 and a handle 33. The sealing body 32 is arranged through the burning terminal hole 122, and the projection of the sealing body 32 on the axis direction of the burning terminal hole 122 completely covers the burning terminal hole 122. The handle 33 is connected to the side of the sealing body 32 facing the outside. The arrangement of the handle 33 on the second sealing member 3 can facilitate the application of force to pull out or press the second sealing member 3. Preferably, the cross-sectional area of the end of the handle 33 away from the sealing body 32 is greater than the cross-sectional area of the end of the handle 33 close to the sealing body 32.

[0078] In the embodiment, preferably, the sealing body 32 and the handle 33 are integrally formed.

[0079] In the embodiment, as shown in Figure 3 and Figure 8 The side surface of the second sealing member 3 is provided with a first clamping member 34, and the inner wall of the back plate 12 facing the burning terminal hole 122 is provided with a second clamping member 14. The first clamping member 34 and the second clamping member 14 are clamped and matched to achieve detachable connection, which can improve the stability of the connection of the second sealing member 3.

[0080] As shown in Figure 3 and Figure 8 The first clamping member 34 is a protrusion, and the second clamping member 14 is a clamping groove. In other embodiments, the first clamping member 34 can be a clamping groove, and the second clamping member 14 can be a protrusion. The first clamping member 34 and the second clamping member 14 can also be other clamping structures.

[0081] Specifically, as shown inFigure 1 and Figure 2 As shown, the back plate 12 has a groove 15 along its outer contour. The waterproof box 100 of the display screen also includes a third seal 4, which is disposed in the groove 15 and is used to abut against the cover plate.

[0082] Thus, the groove 15 provided on the back plate 12 and the third seal 4 work together to make the permeation path of water vapor between the cover plate and the back plate 12 more complex, thereby improving the sealing effect.

[0083] In this embodiment, the third seal 4 can be a common sealing ring. Preferably, such as Figure 5 and Figure 6 As shown, the cross-section of the third seal 4 is Y-shaped. (As...) Figure 9 As shown, the lower end of the third seal 4 is inserted into the groove 15, and the upper end of the third seal 4 abuts against the cover plate. The insertion of the lower end of the third seal 4, i.e. the lower end of the Y-shape, into the groove 15 helps to reduce the gap between the third seal 4 and the groove 15. The V-shape at the upper end of the Y-shape deforms under the pressure of the cover plate, thereby increasing the contact area between the third seal 4 and the cover plate and making it fit the inner wall surface of the cover plate more closely, thus further improving the sealing effect.

[0084] Specifically, the outer side wall of the box body 1 is provided with several connecting parts 16, and each connecting part 16 has a connecting hole 161 for fixing the waterproof box 100 of the display screen.

[0085] Thus, the connection part 16 facilitates the installation and fixation of the waterproof display box 100.

[0086] In this embodiment, as Figure 1 and Figure 2 As shown, there are four connecting parts 16, arranged in pairs on the outer sides of the two opposite side walls of the box body 1. The number and location of the connecting parts 16 are illustrative and can be adjusted by those skilled in the art according to actual needs; this embodiment does not limit the number of connecting parts 16.

[0087] The two connecting portions 16 located on the outer side of the upper sidewall have dovetail grooves 162. The short side of the dovetail groove 162 faces the housing 1, and the long side of the dovetail groove 162 faces outward and has an opening. The long side of the dovetail groove 162 facing outward and the short side facing inward facilitates the entire waterproof display box 100 to be pushed in for installation, improving the convenience and reliability of installation.

[0088] Specifically, such as Figure 2As shown, the accommodating cavity 13 can also be provided with a plurality of bosses 131, one end of the bosses 131 is fixedly connected to the inner wall of the back plate 12, the other end of the bosses 131 extends away from the back plate 12, and the display screen assembly includes a PCB board 200 (Printed Circuit Board, i.e. printed circuit board), and the PCB board 200 is arranged on the plurality of bosses 131. The main function of the boss 131 is to support the PCB board 200, prevent the electrical components on the back of the PCB board 200 from being damaged due to extrusion, and at the same time, since the resin needs to be filled under the PCB board 200, the boss 131 can effectively allow the resin to flow under the PCB board 200.

[0089] Specifically, as shown in the drawings, Figure 2 As shown, the accommodating cavity 13 can also be provided with a plurality of positioning columns 132, one end of the plurality of positioning columns 132 is fixedly connected to the inner wall of the back plate 12, the other end of the plurality of positioning columns 132 extends away from the back plate 12, and the edge of the PCB board 200 abuts against the positioning column 132 to be positioned.

[0090] The embodiment also provides a water purifier comprising the display screen waterproof box 100.

[0091] In this way, the first sealing member 2 is arranged in the wire hole 121 and covers the wire hole 121 completely, so that the first sealing member 2 is completely coincided with the edge of the wire hole 121, the gap allowing water vapor to pass through is reduced as much as possible, and the sealing effect between the first sealing member 2 and the wire hole 121 is ensured. Meanwhile, the interference fit between the through hole 21 on the first sealing member 2 and the cable can make the hole wall of the through hole 21 of the first sealing member 2 tightly abut against the cable, and the gap allowing water vapor to pass through is also reduced as much as possible, so that the sealing effect between the first sealing member 2 and the cable is ensured.

[0092] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and these changes and modifications all fall within the protection scope of the present application.

Claims

1. A waterproof case for a display screen, characterized by, The display screen waterproof box comprises a box body and a first sealing member, the box body comprises a back plate, a wire arranging hole is formed in the back plate, the first sealing member is arranged in the wire arranging hole, a projection of the first sealing member on an axis direction of the wire arranging hole completely covers the wire arranging hole, the first sealing member is detachably connected to the back plate, the first sealing member is provided with a through hole for a cable of a display screen to pass through, and the cable is in interference fit with the through hole.

2. The display screen waterproof case of claim 1, wherein, The first sealing member comprises a blocking part, one end of the blocking part is a first extending end, the first extending end extends outward from the wire arranging hole and extends around the wire arranging hole to form a first protruding part, and the first protruding part is tightly attached to an outer wall of the back plate on a side facing the wire arranging hole. The other end of the blocking part is a second extending end, the second extending end extends inward into the wire arranging hole and extends around the wire arranging hole to form a second protruding part, and the second protruding part is tightly attached to an inner wall of the back plate on a side facing the wire arranging hole.

3. The display screen waterproof case of claim 2, wherein, The extending length of the first extending end is longer than that of the second extending end. The second protruding part is provided with a guide sliding surface on a side facing away from the wire arranging hole, and the guide sliding surface is inclined towards an edge of the wire arranging hole.

4. The display screen waterproof case of claim 1, wherein, The back plate is further provided with a burning end hole, the burning end hole is in communication with a terminal of a burning program, the display screen waterproof box further comprises a second sealing member, the second sealing member is arranged in the burning end hole, a projection of the second sealing member on an axis direction of the burning end hole completely covers the burning end hole, the second sealing member is detachably connected to the back plate, and a blind hole is formed in a side of the second sealing member facing the terminal of the burning program, and the blind hole is used for the terminal of the burning program to pass in.

5. The display screen waterproof case of claim 4, wherein, The second sealing member comprises a sealing main body and a handle, the sealing main body is arranged in the burning end hole, and a projection of the sealing main body on an axis direction of the burning end hole completely covers the burning end hole; the handle is connected to a side of the sealing main body facing the outside; The second sealing member is provided with a first clamping member on a side surface, and a second clamping member is arranged on an inner wall of the back plate facing the burning end hole, and the first clamping member and the second clamping member are clamped and matched.

6. The display screen waterproof case of claim 1, wherein, The box body further comprises a cover plate and a side plate, a closed containing cavity is formed between the cover plate, the side plate and the back plate, and the containing cavity is used for containing a display screen assembly; The back plate is provided with a groove along an outer contour thereof, the display screen waterproof box further comprises a third sealing member, the third sealing member is arranged in the groove, and the third sealing member is used for abutting against the cover plate.

7. The display screen waterproof case of claim 6, wherein, The third sealing member has a Y-shaped cross section, a lower end of the third sealing member is inserted into the groove, and an upper end of the third sealing member abuts against the cover plate.

8. The display screen waterproof case of claim 1, wherein, An outer side wall of the box body is provided with a plurality of connecting parts, each of the connecting parts is provided with a connecting hole, and the connecting hole is used for fixing the display screen waterproof box.

9. The display screen waterproof case of claim 8, wherein, At least one of the connecting portions is provided with a dovetail groove, a short side of the dovetail groove faces the box body, a long side of the dovetail groove faces outward, and an opening is provided to communicate with the dovetail groove.

10. A water purifier characterized by comprising: The display screen waterproof box comprises the display screen waterproof box body and the display screen waterproof box cover.

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