Waterproof device and control box

Abstract

The application provides a waterproof device and a control box, the waterproof device comprising: a fixing member with a first through hole, a positioning member with a second through hole, and a sealing member fixed between the fixing member and the positioning member, the fixing member and the positioning member being pressed against each other to fix the sealing member, the sealing member comprising a sealing base, the sealing base having an adapting structure protruding out of the first through hole, the adapting structure having a third through hole corresponding to the second through hole, a cable passing through the first through hole, the second through hole and the third through hole of the waterproof device, and part of the cable being accommodated in the adapting structure. The waterproof device of the application realizes the sealing and fixing between the fixing member and the positioning member by pressing and fixing the sealing member between the fixing member and the positioning member. At the same time, the cable can directly pass through the first through hole of the fixing member, the second through hole of the positioning member and the third through hole of the adapting structure, and part of the cable is accommodated in the adapting structure, realizing the sealing and waterproof between the cable and the waterproof device.

Description

TECHNICAL FIELD

[0001] The present application relates to a waterproof device and a control box, belonging to the technical field of fire-fighting electrical appliances. BACKGROUND

[0002] With the rapid development of Internet of Things technology, fire-fighting electrical appliances are often used in high-temperature and humid environments such as tunnels, subways, mines, and building courtyards, which brings great challenges to the waterproof effect of fire-fighting electrical appliances. In this regard, the technical personnel installs the fire-fighting electrical appliances in the control box for installation to enhance the waterproof effect of the fire-fighting electrical appliances.

[0003] At present, most of the control boxes on the market use waterproof joints or direct hole opening methods to achieve the waterproof of fire-fighting electrical appliances. However, the waterproof joint occupies a large space and has high cost; the direct hole opening method is difficult to solve the waterproof problem of the control box.

[0004] Therefore, it is necessary to improve the existing waterproof device and control box to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a waterproof device and a control box to solve the problems of large space occupation, high cost, and poor waterproof effect of the existing control box.

[0006] To achieve the above purpose, the present application provides a waterproof device, comprising: a fixing member having a first through hole, a positioning member having a second through hole, and a sealing member fixed between the fixing member and the positioning member, the fixing member and the positioning member being pressed against each other to fit the sealing member, the sealing member comprising a sealing base, the sealing base having an adaptive structure protruding out of the first through hole, the adaptive structure having a third through hole corresponding to the second through hole, a cable passing through the first through hole, the second through hole and the third through hole of the waterproof device, and the cable being partially accommodated in the adaptive structure of the waterproof device.

[0007] Optionally, the adaptive structure comprises a plurality of sealing rings, the plurality of sealing rings being arranged along the protruding direction of the adaptive structure and surrounding the third through hole, and the inner diameters of the plurality of sealing rings gradually decreasing in the direction away from the second through hole.

[0008] Optionally, it further comprises a sealing plug, the outer side wall of the sealing plug having a first groove, the sealing plug being clamped in the second through hole through the first groove, the sealing plug having a plurality of wire holes in the inside, and the cable further passing through the wire holes and being partially accommodated in the sealing plug.

[0009] Optionally, the adapter structure further has a clamping portion extending inward from the inner sidewall of the sealing ring, the outer sidewall of the sealing plug further has a second groove, the sealing plug extends into several sealing rings after passing through the second through hole, and the clamping portion is clamped into the second groove.

[0010] Optionally, the threading hole is a blind hole, the diameter of the threading hole is smaller than the diameter of the second through hole, and the cable comprises a single core wire, the blind hole is pierced when the single core wire passes through the blind hole.

[0011] Optionally, the number of the adapter structures is more than two.

[0012] Optionally, the sealing base comprises a sealing bottom disc, the sealing bottom disc has a protruding sealing fitting portion, the adapter structure protrudes from the surface of the sealing fitting portion, the fixing member is a box-shaped structure opening towards the sealing member, and the box-shaped structure covers the sealing fitting portion.

[0013] Optionally, the fixing member further has a plurality of fixing holes, the positioning member further has a plurality of fixing columns, the sealing base further has a plurality of locking holes, the waterproof device further comprises a plurality of locking members, the plurality of fixing holes, the plurality of fixing columns and the plurality of locking holes correspond to each other, and each locking member is locked and connected with the corresponding fixing column after sequentially passing through the corresponding fixing hole and locking hole.

[0014] Optionally, the edge of at least one side of the fixing member has three fixing holes which are unevenly distributed along the length direction of the fixing member.

[0015] Optionally, the fixing member further has a plurality of first backup holes, the positioning member further has a plurality of second backup holes, the sealing member further has a plurality of reserve holes, the plurality of first backup holes, the plurality of second backup holes and the plurality of reserve holes correspond to each other, and the reserve hole is a blind hole.

[0016] To achieve the above-mentioned purpose, the application further provides a control box, comprising a shell, an electric appliance accommodated in the shell, a cable connected with the electric appliance and the waterproof device described above, and the waterproof device is used for sealing the cable and the shell.

[0017] Optionally, the shell has a through hole matched with the waterproof device, the sealing base is accommodated in the through hole in an interference fit, the fixing member and the positioning member are located on two sides of the through hole respectively, the fixing member is located inside the control box, the positioning member is located outside the control box, and at least one of the fixing member and the positioning member extrudes the sealing member, so that the sealing base is deformed and tightly fitted with the fixing member and the positioning member.

[0018] Optionally, the shell further has a protrusion protruding into the through hole, the sealing base has a circumferentially opened notch, the protrusion is inserted into the notch and is blocked and pressed by the fixing member to limit the waterproof device.

[0019] The present application has the following advantages:

[0020] In the waterproof device, the sealing member fixed between the fixing member and the positioning member has a sealing base, and the fixing member and the positioning member are pressed against each other, so that the sealing member is attached to the fixing member and the positioning member and is fixed between the fixing member and the positioning member by being pressed, thereby achieving the sealing and fixing between the fixing member and the positioning member. At the same time, since the sealing base has an adapter structure protruding out of the first through hole, and the adapter structure has a third through hole corresponding to the second through hole, the cable can directly pass through the first through hole on the fixing member, the second through hole on the positioning member, and the third through hole on the adapter structure, and is partially accommodated in the adapter structure, thereby achieving the sealing and waterproof between the cable and the waterproof device. Thus, by applying the waterproof device to the control box, the waterproof device can be used to achieve the sealing connection between the cable and the control box shell. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a perspective structural schematic diagram of a control box according to an embodiment of the present application;

[0022] Figure 2 is Figure 1 is an exploded view of the control box in

[0023] Figure 3 is Figure 2 is a partial enlarged view of region A in

[0024] Figure 4 is a perspective structural schematic diagram of a waterproof device according to an embodiment of the present application;

[0025] Figure 5 is Figure 4 is an exploded view of the waterproof device in

[0026] Figure 6 is a perspective structural schematic diagram of a sealing member in a first view according to an embodiment of the present application;

[0027] Figure 7 is a perspective structural schematic diagram of a sealing member in a second view according to an embodiment of the present application;

[0028] Figure 8 is an assembly schematic diagram of a positioning member and a sealing plug according to an embodiment of the present application;

[0029] Figure 9 is a perspective structural schematic diagram of a sealing plug according to an embodiment of the present application.

[0030] Explanation of reference signs:

[0031] 100 - control box, 101 - waterproof device, 102 - electric appliance, 103 - shell;

[0032] 1 - fixing member, 11 - fixing hole, 12 - first through hole, 13 - first spare hole;

[0033] 2 - positioning member, 21 - fixing column, 22 - second through hole, 23 - second spare hole;

[0034] 3 - sealing member, 31 - locking hole, 32 - third through hole, 33 - adapting structure, 331 - sealing ring, 34 - reserve hole, 35 - notch, 36 - sealing base, 361 - sealing bottom plate, 362 - sealing fitting part;

[0035] 4 - sealing plug, 41 - first groove, 42 - threading hole, 43 - second groove, 5 - locking member, 6 - through hole, 7 - protrusion, 8 - fixing device. DETAILED DESCRIPTION

[0036] In order to make the object, technical solutions and advantages of the present application clearer, the present application will be described in detail below with reference to the drawings and specific embodiments.

[0037] Please refer to Figures 1 to 3 , the embodiment provides a control box 100 for connecting a cable (not shown) and an electric appliance 102. The control box 100 comprises a shell 103, an electric appliance 102 accommodated in the shell 103, a cable connected with the electric appliance 102, and a waterproof device 101 for sealing the cable and the shell 103. Wherein, the cable passes through the shell 103 to realize the transmission of at least one of energy and signal between the electric appliance 102 and the outside world, and the waterproof device 101 is arranged between the cable and the shell 103 to realize the waterproof between the cable and the shell 103.

[0038] In the embodiment, the electric appliance 102 comprises a fire-fighting electric appliance.

[0039] The control box 100 further comprises a fixing device 8 for fixing the control box 100 on a mounting surface. Specifically, the fixing device 8 is an "L" type bending structure, one end surface of the fixing device 8 is connected with the mounting surface, and the other end surface is connected with the shell 103 of the control box 100, so as to mount the control box 100 on the mounting surface.

[0040] Preferably, the control box 100 comprises two fixing devices 8, and the two fixing devices 8 are respectively located on the upper and lower sides of the control box 100, so as to increase the fixing strength of the control box 100.

[0041] In the embodiment, the connection structure between the control box 100 and the electrical appliance 102 and the connection structure between the electrical appliance 102 and the cable can be set according to the prior art, and the improvement of the present application is the waterproof device 101. The following description mainly describes the waterproof device 101.

[0042] Please refer to Figures 4 to 9 The waterproof device 101 has a fixing member 1, a positioning member 2, and a sealing member 3. The sealing member 3 is located between the fixing member 1 and the positioning member 2, and is fixed by the mutual extrusion of the fixing member 1 and the positioning member 2.

[0043] The fixing member 1 has a first through hole 12, the positioning member 2 has a second through hole 22, and the sealing member 3 includes a sealing base 36. The sealing base 36 has an adaptive structure 33 protruding from the sealing base 36 towards the inside of the control box 100. The adaptive structure 33 protrudes out of the first through hole 12, so that at least part of the adaptive structure 33 is accommodated in the first through hole 12. In addition, the adaptive structure 33 has a third through hole 32 corresponding to the second through hole 22. Thus, the cable can pass through the first through hole 12, the second through hole 22, and the third through hole 32 of the waterproof device 101, and be partially accommodated in the adaptive structure 33, so as to seal the gap between the cable and the control box 100 by the adaptive structure 33.

[0044] Since the sealing member 3 fixed between the fixing member 1 and the positioning member 2 has the sealing base 36 in the waterproof device 101, and the fixing member 1 and the positioning member 2 are extruded, the sealing member 3 is attached to the fixing member 1 and the positioning member 2 respectively, and is extruded and fixed between the fixing member 1 and the positioning member 2, thereby achieving the sealing and fixing between the fixing member 1 and the positioning member 2. At the same time, since the adaptive structure 33 protruding out of the first through hole 12 is provided on the sealing base 36, and the third through hole 32 corresponding to the second through hole 22 is provided on the adaptive structure 33, the cable can directly pass through the first through hole 12 on the fixing member 1, the second through hole 22 on the positioning member 2, and the third through hole 32 on the adaptive structure 33, and be partially accommodated in the adaptive structure 33, thereby achieving the sealing and waterproof between the cable and the waterproof device 101. Thus, by applying the waterproof device 101 on the control box 100, the sealing connection between the cable and the shell 103 of the control box 100 can be achieved by the waterproof device 101.

[0045] Preferably, the material of the sealing member 3 and the material of the adaptive structure 33 are both elastic materials, such as rubber materials.

[0046] The sealing base 36 comprises a sealing base disc 361 with a protruding sealing fitting portion 362, the adapter structure 33 protrudes from the surface of the sealing fitting portion 362, and the fixing member 1 is a box-shaped structure opening towards the sealing member 3, which covers the sealing fitting portion 362. Therefore, when the fixing member 1 and the positioning member 2 are pressed against each other, the sealing base disc 361, the protruding sealing fitting portion 362, and the fixing member 1 covering the sealing fitting portion 362 effectively increase the fitting area of the fixing member 1 and the sealing member 3, and the fitting area of the positioning member 2 and the sealing member 3, thereby further enhancing the sealing between the fixing member 1 and the sealing member 3, and the sealing between the positioning member 2 and the sealing member 3.

[0047] The adapter structure 33 comprises a plurality of sealing rings 331, which enclose the third through hole 32, and the plurality of sealing rings 331 are arranged in the protruding direction of the adapter structure 33, and the inner diameters of the plurality of sealing rings 331 gradually decrease in the direction away from the second through hole 22. Therefore, the adapter structure 33 can be adapted to cables with different diameters.

[0048] In this embodiment, the inner diameter of each sealing ring 331 is unique and unchangeable, that is, the plurality of sealing rings 331 have a plurality of inner diameters of different sizes, thereby increasing the controllability of the inner diameter of the adapter structure 33 when adapting to cables with different diameters, and better improving the sealing reliability.

[0049] In some other embodiments, the inner diameters of the sealing rings 331 can also be variable, for example, the inner diameters of the sealing rings continuously decrease in the direction away from the second through hole 22, thereby further increasing the diameters of the cables that can be adapted to the adapter structure 33.

[0050] In this embodiment, in the protruding direction of the adapter structure 33, the adapter structure 33 comprises three sealing rings 331 arranged in series. The three sealing rings 331 each have a unique inner diameter, and the three sealing rings 331 are sequentially connected in the direction away from the second through hole 22 according to the sizes of the respective inner diameters from large to small, thereby the inner diameter of the adapter structure 33 gradually decreases in the direction away from the second through hole 22, and the adapter structure 33 is adapted to cables with different diameters.

[0051] Specifically, when the diameter of the cable is the same as the inner diameter of the smallest sealing ring 331, the cable can directly pass through the adapter structure 33 to realize the sealing of the cable and the adapter structure 33; when the diameter of the cable is greater than the inner diameter of the smallest sealing ring 331, an external tool can be used to trim the sealing ring 331 with an inner diameter smaller than the diameter of the cable, so that the cable is in sealing connection with the adapter structure 33 on the basis of passing through the adapter structure 33, and the waterproof between the cable and the waterproof device 101 is realized.

[0052] In other embodiments, the adapting structure 33 can also be composed of other number of sealing rings 331, for example, the adapting structure 33 can include one sealing ring 331, or include five sealing rings 331, etc., so that the adapting structure 33 can reduce the cost and manufacturing difficulty according to the actual needs, or adapt to more different diameter cables.

[0053] Preferably, the sealing ring 331 with the smallest inner diameter in the adapting structure 33 is a blind hole, that is, the inside of the sealing ring 331 with the smallest diameter is sealed. When needed, the sealing ring 331 is pierced by an external tool and then used, thereby further enhancing the sealing reliability between the adapting structure 33 and the cable.

[0054] Preferably, the number of the adapting structure 33 is more than two, and correspondingly, the number of the first perforation 12 and the second perforation 22 is also more than two, realizing the mutual correspondence among the adapting structure 33, the first perforation 12 and the second perforation 22, so that the control box 100 can be connected to multiple cables with different diameters, improving the practicability of the waterproof device 101.

[0055] In the present embodiment, the first perforation 12, the second perforation 22 and the adapting structure 33 are all provided with eight, and are arranged in two rows, so that the control box 100 can be connected to multiple cables with different diameters, improving the practicability of the waterproof device 101.

[0056] Of course, in other embodiments, the first perforation 12, the second perforation 22 and the adapting structure 33 can also be other numbers, and the arrangement mode can also be other shapes, which are not limited here.

[0057] Please refer to Figure 5 , Figure 8 and Figure 9 , the waterproof device 101 further includes a sealing plug 4, which is installed on the positioning member 2 and extends towards the fixed member 1, so that at least part of the sealing plug 4 is accommodated in the adapting structure 33 and matches the inner diameter of the adapting structure 33, thereby strengthening the closure of the adapting structure 33.

[0058] Specifically, the sealing plug 4 has a first groove 41 on the outer side wall, and the sealing plug 4 is clamped in the second perforation 22 through the first groove 41 to close the second perforation 22. Preferably, the material of the sealing plug 4 is an elastic material such as rubber, and the first groove 41 matches the second perforation 22, so that the sealing plug 4 can be in interference fit with the positioning member 2 to realize the sealed connection of the sealing plug 4 and the positioning member 2.

[0059] Specifically, the outer side wall of the sealing plug 4 further has a second groove 43, and the corresponding adapter structure 33 further has a clamping portion (not labeled in the figure) extending inward from the inner side wall of the sealing ring 331. The second groove 43 is located beside the first groove 41 and close to the fixing member 1. When the sealing plug 4 extends into the sealing ring 331 after passing through the second through hole 22, the clamping portion is clamped into the second groove 43 to close the third through hole 32, thereby preventing water vapor and dust from entering the control box 100.

[0060] Specifically, the sealing plug 4 includes a threading hole 42, which extends through the sealing plug 4 in the direction in which the adapter structure 33 protrudes. The diameter of the threading hole 42 is smaller than the diameter of the second through hole 22. The cable passes through and is partially accommodated in the threading hole 42, so that the cable can pass through the threading hole 42 to enter the control box 10.

[0061] Preferably, the sealing plug 4 is provided with a plurality of threading holes 42.

[0062] Preferably, the cable is a single-core wire, and the threading hole 42 is a blind hole. When the single-core wire passes through the blind hole, the blind hole is pierced. Such an arrangement enables the waterproof device 101 to adapt to single-core wires, thereby improving the practicability of the waterproof device 101. At the same time, the threading hole 42 is arranged as a blind hole, thereby achieving the sealing effect of the waterproof device 101 when no wire is threaded, and preventing dust, moisture, and the like from entering the control box 100.

[0063] Preferably, the sealing plug 4 is provided with eight, so as to be adapted to the eight second through holes 22, respectively. At the same time, the eight sealing plugs 4 are independent of each other, so that the waterproof device 101 can configure the sealing plugs 4 according to the number and size of the cable, thereby improving the practicability of the waterproof device 101.

[0064] Of course, in other embodiments, the sealing plug 4 can be provided with other numbers according to actual conditions, and a plurality of sealing plugs 4 can also be connected to each other. In the case of not needing to be used, the sealing plug 4 that is not used is cut by using an external tool, which is not limited here.

[0065] In the present embodiment, the cable further includes a multi-core wire, wherein the multi-core wire has a plurality of types with different diameters. The waterproof device 101 can be adapted to both single-core wires and multi-core wires. Specifically, in the embodiment in which there are both single-core wires and multi-core wires with different sizes, the sealing plug 4 is arranged according to the number of single-core wires, so that the single-core wires are connected to the waterproof device 101 in a sealed manner through the mutual cooperation of the sealing plug 4 and the adapter structure 33. At the same time, the plurality of adapter structures 33 are cut by using an external tool to expose the third through holes 32 that are adapted to the multi-core wires, so that the multi-core wires with different sizes can be connected to the waterproof device 101 in a sealed manner through the adapter structure 33.

[0066] The waterproof device 101 further comprises a plurality of locking pieces 5, the fixing piece 1 further has a plurality of fixing holes 11, the positioning piece 2 further has a plurality of fixing columns 21, the sealing base 36 further has a plurality of locking holes 31, the plurality of fixing holes 11, the plurality of fixing columns 21 and the plurality of locking holes 31 correspond to each other, each locking piece 5 passes through the corresponding fixing hole 11, locking hole 31 and locking connection with the corresponding fixing column 21 in turn, so that the fixing piece 1 and the positioning piece 2 extrude each other, the sealing base 36 is deformed under stress, so as to realize the sealing between the fixing piece 1 and the positioning piece 2.

[0067] The edge of at least one side of the fixing piece 1 has 3 fixing holes 11 distributed non-uniformly along the length direction of the fixing piece 1.

[0068] Preferably, the edges of both sides of the fixing piece 1 have 3 fixing holes 11 distributed non-uniformly along the length direction of the fixing piece 1. That is, in the length direction of the fixing piece 1, the fixing hole 11, the fixing column 21 and the locking hole 31 are provided with three pairs. For the convenience of understanding and description, taking the fixing hole 11 as an example, the three pairs of fixing holes 11 are defined as the first pair of fixing holes 11, the second pair of fixing holes 11 and the third pair of fixing holes 11 from left to right in turn. Among them, the distance between the first pair of fixing holes 11 and the second pair of fixing holes 11 is different from the distance between the second pair of fixing holes 11 and the third pair of fixing holes 11. Thus, the installation mode between the fixing piece 1, the sealing piece 3 and the positioning piece 2 is unique, and when the placement direction of any one component is wrong, the waterproof device 101 cannot be assembled, so as to realize the foolproof assembly of the waterproof device 101.

[0069] In other embodiments, the number of fixing holes 11, fixing columns 21 and locking holes 31 can also be provided with two pairs, four pairs, five pairs or other numbers, as long as the waterproof device 101 can be assembled, which is not limited here.

[0070] In this embodiment, the waterproof device 101 further comprises a plurality of reserved holes to adapt to more cables and other devices. Specifically, the fixing piece 1 further has a plurality of first spare holes 13, the positioning piece 2 further has a plurality of second spare holes 23, and the sealing piece 3 further has a plurality of reserve holes 34, the first spare hole 13, the second spare hole 23 and the reserve hole 34 correspond to each other, and the first spare hole 13, the second spare hole 23 and the reserve hole 34 are respectively arranged in the blank area of the fixing piece 1, the positioning piece 2 and the sealing piece 3, for example: the first spare hole 13 is arranged between the plurality of first through holes 12, that is, arranged in other areas on the fixing piece 1, so as to avoid interference with the first through hole 12.

[0071] In the embodiment, the first spare hole 13 and the second spare hole 23 are provided in two types of circular and square shapes, and the first spare hole 13 and the second spare hole 23 are respectively arranged through the fixing member 1 and the positioning member 2, and the shape of the reserve hole 34 is also provided in two types of circular and square shapes, but the reserve hole 34 is a blind hole. In this way, in the embodiment in which the reserve hole 34 is not needed, the sealing and waterproof of the waterproof device 101 can be realized. When the reserve hole 34 is needed, the corresponding reserve hole 34 is pierced by an external tool to realize the expansion of the cable. Of course, in other embodiments, the number and shape of the first spare hole 13, the second spare hole 23 and the reserve hole 34 can be set according to the actual situation, which is not limited here.

[0072] Please refer to Figure 3 and Figure 6 , the housing 103 is provided with a through hole 6 matched with the waterproof device 101, and a protrusion 7 protruding into the through hole 6, and the sealing base 36 of the sealing member 3 has a notch 35 opened towards the circumference, and the notch 35 corresponds to the protrusion 7. When the waterproof device 101 is connected with the housing 103, the protrusion 7 is inserted into the notch 35 and is blocked and pressed by the fixing member 1 to limit the waterproof device 101 and realize the positioning installation of the waterproof device 101.

[0073] Preferably, the protrusion 7 and the notch 35 are each provided with only one, which is set to realize the foolproof installation between the waterproof device 101 and the housing 103, and to avoid the mistake of the operator during installation.

[0074] Of course, in other embodiments, the number of the protrusion 7 and the notch 35 can also be provided with multiple, and the multiple protrusions 7 and the notches 35 are asymmetric to realize the foolproof installation of the waterproof device 101 and the housing 103, which is not limited here.

[0075] The sealing base 36 is provided in a square shape, the shapes of the fixing member 1 and the positioning member 2 are the same as that of the sealing base 36, the fixing member 1 and the positioning member 2 are pressed against each other, so that the sealing base 36 is deformed to realize the sealing between the waterproof device 101 and the housing 103. Specifically, when the sealing base 36 is accommodated in the through hole 6, the side of the sealing bottom plate 361 abuts against the edge of the through hole 6 to realize the positioning of the sealing base 36 and the through hole 6. When the waterproof device 101 is installed with the housing 103, the sealing base 36 is accommodated in the through hole 6 in an interference manner, the fixing member 1 and the positioning member 2 are arranged on both sides of the through hole 6, and the fixing member 1 is located inside the control box 100, and the positioning member 2 is located outside the control box 100, at least one of the fixing member 1 and the positioning member 2 presses the sealing member 3, so that the sealing base 36 is deformed and tightly attached to the fixing member 1 and the positioning member 2.

[0076] Specifically, the sealing base 36 is interference-fitted in the through hole 6, and the protrusion 7 is inserted into the gap 35. Then, the fixing member 1 and the positioning member 2 are arranged on two sides of the through hole 6, and then the locking member 5 is sequentially inserted through the fixing hole 11, the locking hole 31 and connected with the fixing column 21, so that the fixing member 1 and the positioning member 2 are pressed and sealed, and the sealing base 36 is deformed. At this time, on the one hand, the protrusion 7 is inserted into the gap 35 and is tightly fixed by the fixing member 1 to limit the waterproof device 101, and on the other hand, the edge of the through hole 6 is limited between the fixing member 1 and the positioning member 2 to realize the fixation between the waterproof device 101 and the shell 103, and the sealing and waterproof between the shell 103, the fixing member 1 and the positioning member 2 are realized.

[0077] It can be understood that the fixing column 21 can also be inserted through the locking hole 31 to preliminarily fix the positioning member 2 with the sealing base 36, and then the sealing base 36 is interference-fitted in the through hole 6, at this time, the positioning member 2 is located on one side of the through hole 6, and then the fixing member 1 is located on the other side of the through hole 6, and the locking member 5 is sequentially inserted through the fixing hole 11, the locking hole 31 and connected with the fixing column 21.

[0078] Preferably, the through hole 6 and the waterproof device 101 are located at the bottom of the control box 100.

[0079] In summary, the control box 100 of the present application realizes the sealed connection between the fixing member 1, the positioning member 2 and the shell 103 by sequentially connecting the fixing member 1, the sealing member 3 and the positioning member 2 to limit part of the shell 103 between the fixing member 1 and the positioning member 2 and deform the sealing member 3; the foolproof assembly between the waterproof device 101 and the shell 103 is realized by setting the protrusion 7 on the shell 103 and the gap 35 on the sealing member 3; the foolproof assembly between the fixing member 1, the sealing member 3 and the positioning member 2 is realized by setting the spacing between the adjacent two fixing holes 11 as different; the practicability of the waterproof device 101 is improved by setting the adaptive structure 33 capable of adapting to cables with different diameters on the sealing member 3 and setting multiple reserved holes on the waterproof device 101; the sealing of the positioning member 2 is realized on the one hand and the waterproof device 101 can adapt to single-core cables on the other hand by setting the sealing plug 4 on the waterproof device 101 and setting the threading hole 42 on the sealing plug 4.

[0080] The above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the present application.

Claims

1. A waterproof device, characterized in that, include: The device includes a fixing member (1) with a first through hole (12), a positioning member (2) with a second through hole (22), and a sealing member (3) fixed between the fixing member (1) and the positioning member (2). The fixing member (1) and the positioning member (2) are pressed against each other to fit and fix the sealing member (3). The sealing member (3) includes a sealing base (36). The sealing base (36) has an adapter structure (33) protruding from the first through hole (12). The adapter structure (33) has a third through hole (32) corresponding to the second through hole (22). The cable passes through the first through hole (12), the second through hole (22) and the third through hole (32) of the waterproof device (101). The cable is partially housed in the adapter structure (33) of the waterproof device (101). The adapter structure (33) includes a plurality of sealing rings (331), which together form the third through hole (32). The plurality of sealing rings (331) are arranged along the protruding direction of the adapter structure (33), and the inner diameter of the plurality of sealing rings (331) gradually decreases in the direction away from the second through hole (22).

2. The waterproof device according to claim 1, characterized in that, Also includes: A sealing plug (4) has a first groove (41) on its outer side wall. The sealing plug (4) is engaged with the second through hole (22) through the first groove (41). The sealing plug (4) has a plurality of wire holes (42) inside. The cable also passes through the wire holes (42) and is partially housed inside the sealing plug (4).

3. The waterproof device according to claim 2, characterized in that, The adapter structure (33) also has a locking part extending inward from the inner sidewall of the sealing ring (331), and the outer sidewall of the sealing plug (4) also has a second groove (43). The sealing plug (4) passes through the second through hole (22) and extends into a plurality of the sealing rings (331), and the locking part engages into the second groove (43).

4. The waterproof device according to claim 2 or 3, characterized in that, The wire hole (42) is a blind hole, and the diameter of the wire hole (42) is smaller than the diameter of the second through hole (22). The cable includes a single core wire, and the blind hole is punctured when the single core wire passes through it.

5. The waterproof device according to claim 1, characterized in that, The number of the adapter structures (33) is more than two.

6. The waterproof device according to claim 1, characterized in that, The sealing base (36) includes a sealing chassis (361) with a raised sealing fitting portion (362) on the sealing chassis (361). The adapter structure (33) protrudes from the surface of the sealing fitting portion (362). The fixing member (1) is a box-shaped structure that opens toward the sealing member (3) and covers the sealing fitting portion (362).

7. The waterproof device according to claim 1, characterized in that, The fixing member (1) also has several fixing holes (11), the positioning member (2) also has several fixing posts (21), the sealing base (36) also has several locking holes (31), the waterproof device (101) also includes several locking members (5), the several fixing holes (11), the several fixing posts (21) and the several locking holes (31) correspond to each other, and each locking member (5) passes through the corresponding fixing hole (11) and locking hole (31) in sequence and is locked to the corresponding fixing post (21).

8. The waterproof device according to claim 7, characterized in that, The fastener (1) has three fastening holes (11) that are not uniformly distributed along the length of the fastener (1) on at least one side edge.

9. The waterproof device according to claim 1, characterized in that, The fixing member (1) also has several first spare holes (13), the positioning member (2) also has several second spare holes (23), and the sealing member (3) also has several reserve holes (34). The several first spare holes (13), the several second spare holes (23) and the several reserve holes (34) correspond to each other, and the reserve holes (34) are blind holes.

10. A control box, characterized in that, include: The housing (103), the electrical appliance (102) housed within the housing (103), the cable connected to the electrical appliance (102), and the waterproof device (101) as claimed in any one of claims 1-9, the waterproof device (101) being used to seal the cable and the housing (103).

11. The control box according to claim 10, characterized in that, The housing (103) has a through hole (6) that mates with the waterproof device (101). The sealing base (36) is interference-fitted into the through hole (6). The fixing member (1) and the positioning member (2) are located on both sides of the through hole (6), with the fixing member (1) located inside the control box and the positioning member (2) located outside the control box. At least one of the fixing member (1) and the positioning member (2) presses against the sealing member (3), causing the sealing base (36) to deform and be tightly fitted by the fixing member (1) and the positioning member (2).

12. The control box according to claim 11, characterized in that, The housing (103) also has a protrusion (7) that protrudes into the through hole (6), and the sealing base (36) has a notch (35) that is opened in the circumferential direction. The protrusion (7) is inserted into the notch (35) and is blocked and squeezed by the fastener (1) to limit the waterproof device (101).

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