阅读说明：本技术 一种消防用防水kbo控制与保护开关 (Fire control is with waterproof KBO control and protection switch ) 是由 袁腾 其他发明人请求不公开姓名 于 2021-08-03 设计创作，主要内容包括：本发明公开了一种消防用防水KBO控制与保护开关,包括控制保护开关和顶盖,所述控制保护开关的上端后侧与顶盖固定相连,所述顶盖的下端四角均固接有边框,所述控制保护开关的上端加工有多个接线孔,多个所述接线孔的前端均加工有螺栓孔,所述防水组件的上部一侧安装有动力组件,所述控制保护开关的前部下端安装有多个按钮。该消防用防水KBO控制与保护开关,通过电机、第三锥齿轮、第四锥齿轮、第一转轴、端板、侧板和第二转轴之间的配合,启动电机,通过多个锥齿轮之间的传动,使多个第二转轴、第一转轴、侧板和端板进行同步转动,避免了外侧的防水结构不便于同步进行伸缩导致长期使用下容易出现干涉或不到位的问题。(The invention discloses a waterproof KBO control and protection switch for fire fighting, which comprises a control protection switch and a top cover, wherein the rear side of the upper end of the control protection switch is fixedly connected with the top cover, four corners of the lower end of the top cover are fixedly connected with a frame, a plurality of wiring holes are processed at the upper end of the control protection switch, bolt holes are processed at the front ends of the wiring holes, a power assembly is installed on one side of the upper part of the waterproof assembly, and a plurality of buttons are installed at the lower end of the front part of the control protection switch. This waterproof KBO control and protection switch is used in fire control, through the motor, third bevel gear, fourth bevel gear, first pivot, the end plate, the cooperation between curb plate and the second pivot, starter motor through the transmission between a plurality of bevel gears, makes a plurality of second pivots, first pivot, curb plate and end plate carry out synchronous rotation, and the waterproof construction of having avoided the outside is not convenient for stretch out and draw back in step and leads to appearing easily under the long-term use problem of interfering or not arriving.)

1. The utility model provides a fire control is with waterproof KBO control and protection switch, includes control protection switch (13) and top cap (1), the upper end rear side of control protection switch (13) is fixed continuous with top cap (1), its characterized in that: the equal rigid coupling in lower extreme four corners of top cap (1) has frame (5), the upper end processing of control protection switch (13) has a plurality of wiring holes (7), and is a plurality of bolt hole (8) have all been processed to the front end of wiring hole (7), knob (9) are installed at the front end center of control protection switch (13), display screen (10) and pilot lamp (12) are installed to the anterior below of control protection switch (13), spacing subassembly (3) are installed to the outer wall of frame (5), waterproof component (2) are installed to the inboard of spacing subassembly (3), power component (4) are installed to upper portion one side of waterproof component (2), a plurality of buttons (11) are installed to the anterior lower extreme of control protection switch (13).

2. The fire fighting waterproof KBO control and protection switch according to claim 1, characterized in that: the waterproof assembly (2) comprises an upper side plate (201), an upper end plate (202), a first gear (203), an end plate (204), a second gear (205), a side plate (206) and a connecting plate (207);

the upper side plates (201) are respectively positioned at the left side and the right side of the outer wall of the top cover (1), a plurality of side plates (206) are arranged on one side of the lower part of the upper side plate (201), second gears (205) are fixedly connected below the front and rear tail ends of the side plates (206) and the upper side plate (201), first gears (203) are fixedly connected above the front and rear tail ends of the side plates (206), the upper end plate (202) is positioned on one side of the front part of the outer wall of the top cover (1), one side of the lower part of the upper end plate (202) is provided with a plurality of end plates (204), second gears (205) are fixedly connected below the left and right tail ends of the end plates (204) and the upper end plate (202), first gears (203) are fixedly connected above the left and right tail ends of the end plates (204), and the adjacent first gears (203) are meshed with the second gears (205), the inner shaft outer walls of the first gear (203) and the second gear (205) are rotatably connected with a connecting plate (207).

3. The fire fighting waterproof KBO control and protection switch according to claim 1, characterized in that: the height of the end plates (204) is consistent with that of the side plates (206), the height of the upper side plate (201) is half of that of the side plates (206), and the height of the upper end plate (202) is half of that of the end plate (204).

4. The fire fighting waterproof KBO control and protection switch according to claim 1, characterized in that: the limiting component (3) comprises a vertical plate (301), a convex block (302), a guard plate (303), a round rod (304) and a sliding groove (305);

a plurality of riser (301) rigid coupling is in the outer wall outside of frame (5) respectively, inside all processing in the outside of riser (301) has spout (305), a plurality of pole (304) of inside equidistance evenly distributed of spout (305), pole (304) all slide with spout (305) and link to each other, the terminal equal rigid coupling of outer wall of pole (304) has lug (302), and is a plurality of lug (302) rigid coupling is at the both ends center of end plate (204) and curb plate (206) respectively, the outer wall of pole (304) is provided with backplate (303), outer wall one side of backplate (303) all links to each other with riser (301) are fixed.

5. The fire fighting waterproof KBO control and protection switch according to claim 1, characterized in that: the glass plate is characterized in that glass plates (6) are arranged on two sides of the outer wall corner of the frame (5), the inner sides of the glass plates (6) are fixedly connected with the frame (5), and the outer sides of the glass plates (6) are fixedly connected with the vertical plates (301).

6. The fire fighting waterproof KBO control and protection switch according to claim 1, characterized in that: the power assembly (4) comprises a first bevel gear (401), a first rotating shaft (402), a third bevel gear (403), a second bevel gear (404), a second rotating shaft (405), a third rotating shaft (406), a fourth bevel gear (407) and a motor (408);

the motor (408) is fixedly connected to one side of the inner wall of the top cover (1), an output shaft of the motor (408) is fixedly connected with a fourth bevel gear (407) through a third rotating shaft (406), the left side of the outer wall of the fourth bevel gear (407) is meshed and connected with a third bevel gear (403), the inner wall of the third bevel gear (403) is fixedly connected with a first rotating shaft (402), the center of the outer wall of the first rotating shaft (402) is fixedly connected with an upper end plate (202), two sides of the outer wall of the first rotating shaft (402) are rotatably connected with a vertical plate (301) through bearings, two tail ends of two sides of the first rotating shaft (402) are fixedly connected with second bevel gears (404), the outer walls of the second bevel gears (404) are respectively meshed and connected with a first bevel gear (401), the inner side of the inner wall of the first bevel gear (401) is fixedly connected with a second rotating shaft (405), and the center of the outer wall of the second rotating shaft (405) is fixedly connected with an upper side plate (201), and both sides of the outer wall of the second rotating shaft (405) are rotationally connected with the vertical plate (301) through bearings.

Technical Field

The invention relates to the technical field of control protection switches, in particular to a waterproof KBO control and protection switch for fire fighting.

Background

The control and protection switch is the best substitute product of low-voltage electrical appliances such as circuit breaker, contactor, thermal relay, fuse, etc., the "control and protection switch electrical appliance" is the novel product in the low-voltage electrical appliance, is the first generation of the most recent research and development of the nineties of our country that fills the blank in China, as the new large class product, its product classification code is "CPS", the control and protection switch product adopts the single product structural style of modularization, the main functions of traditional circuit breaker (fuse), contactor, overload (or overcurrent, phase failure) protection relay, starter, isolator, etc. have been integrated.

Although prior art can realize control and protection switch's use, prior art has the waterproof construction in the outside not convenient to stretch out and draw back in step and leads to appearing easily under the long-term use problem of interfering or not arriving in place in the use, need a large amount of control module control to realize its waterproof work and lead to appearing the condition of inefficacy easily when meetting the conflagration, current waterproof construction beats many direct mount and leads to using inconvenient problem and rotate the problem that expandes waterproof in-process rivers and get into from the gap easily in the switch outside and at end plate and curb plate.

Disclosure of Invention

The invention aims to provide a fire-fighting waterproof KBO control and protection switch, which aims to solve the problem that the outer side waterproof structure proposed in the background technology is inconvenient to synchronously extend and retract, so that interference or missing easily occurs under long-term use.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a fire control is with waterproof KBO control and protection switch, includes control protection switch and top cap, control protection switch's upper end rear side links to each other with the top cap is fixed, the equal rigid coupling in lower extreme four corners of top cap has the frame, control protection switch's upper end processing has a plurality of wiring holes, and is a plurality of the bolt hole has all been processed to the front end in wiring hole, the knob is installed at control protection switch's front end center, display screen and pilot lamp are installed to control protection switch's front portion below, spacing subassembly is installed to the outer wall of frame, waterproof component is installed to spacing subassembly's inboard, power component is installed to waterproof component's upper portion one side, a plurality of buttons are installed to control protection switch's anterior lower extreme.

Preferably, the waterproof assembly comprises an upper side plate, an upper end plate, a first gear, an end plate, a second gear, a side plate and a connecting plate;

it is a plurality of go up the curb plate and be located the outer wall left and right sides of top cap respectively, the lower part one side of last curb plate is provided with a plurality of curb plates, and is a plurality of the equal rigid coupling in terminal below has the second gear around curb plate and the last curb plate, and is a plurality of the equal rigid coupling in terminal top has first gear around the curb plate, the upper end plate is located the anterior one side of outer wall of top cap, the lower part one side of upper end plate is provided with a plurality of end plates, and is a plurality of the equal rigid coupling in terminal below has the second gear about end plate and upper end plate, and is a plurality of the equal rigid coupling in terminal top has first gear about the end plate, and is a plurality of adjacent first gear and second gear intermeshing, the inside off-axial wall of first gear and second gear all rotates and links to each other there is the curb plate.

Preferably, the height dimensions of the end plates and the side plates are consistent, the height of the upper side plate is half of the height of the side plate, and the height of the upper end plate is half of the height of the end plate.

Preferably, the limiting assembly comprises a vertical plate, a convex block, a protective plate, a round rod and a sliding groove;

it is a plurality of the riser is the rigid coupling in the outer wall outside of frame respectively, the spout has all been processed to the outside inside of riser, a plurality of round bars of inside equidistance evenly distributed of spout, the round bar all slides with the spout and links to each other, the terminal equal rigid coupling of outer wall of round bar has the lug, and is a plurality of the lug rigid coupling is at the both ends center of end plate and curb plate respectively, the outer wall of round bar is provided with the backplate, outer wall one side of backplate all links to each other with the riser is fixed.

Preferably, the two sides of the corner of the outer wall of the frame are both provided with glass plates, the inner sides of the glass plates are fixedly connected with the frame, and the outer sides of the glass plates are fixedly connected with the vertical plates.

Preferably, the power assembly comprises a first bevel gear, a first rotating shaft, a third bevel gear, a second rotating shaft, a third rotating shaft, a fourth bevel gear and a motor;

the utility model discloses a motor, including top cap, motor, output shaft, riser, first pivot, second pivot, first bevel gear, second bevel gear, motor rigid coupling, motor output shaft, third pivot and fourth bevel gear are fixed continuous through the third pivot, third bevel gear's outer wall left side meshing links to each other mutually, third bevel gear's inner wall rigid coupling has first pivot, the outer wall center and the upper end plate of first pivot are fixed continuous, the outer wall both sides of first pivot all rotate continuously through bearing and riser, the terminal equal rigid coupling in both sides of first pivot has second bevel gear, second bevel gear's outer wall all meshes and links to each other mutually, the equal rigid coupling in inner wall inboard of first bevel gear has the second pivot, the outer wall center of second pivot all links to each other with the upper side plate is fixed, the outer wall both sides of second pivot all rotate continuously through bearing and riser.

Compared with the prior art, the invention has the beneficial effects that: the fire-fighting waterproof KBO control and protection switch,

through the matching between the motor, the third bevel gear, the fourth bevel gear, the first rotating shaft, the end plate and the side plate, the motor is started, so that the motor can drive the first rotating shaft and the end plate to rotate through the third bevel gear and the fourth bevel gear, meanwhile, the first rotating shaft can drive the second rotating shaft and the side plate to rotate through the first bevel gear and the second bevel gear, and through the transmission among the plurality of bevel gears, the plurality of second rotating shafts, the first rotating shaft, the side plate and the end plate can synchronously rotate, thereby avoiding the problem that the outer waterproof structure is inconvenient to synchronously extend and retract so as to cause interference or missing easily under long-term use;

the driving process of the waterproof structure only needs the motor as a power source for driving, and only needs to connect the control module of the motor into the fire alarm control system in the using process, when a fire is detected, the motor can be automatically started along with the corresponding spray header, so that waterproof protection operation is realized, and the condition that the failure is easily caused because a large number of control modules are needed to control and realize the waterproof work in case of the fire is avoided;

the upper end plate and the upper side plate synchronously rotate through the matching of the upper end plate, the upper side plate, the first gears, the second gears and the side plates, so that the upper end plate and the upper side plate can be folded and rotated through the meshing of the first gears and the second gears, the end plates and the side plates are rotatably stacked or rotatably unfolded, and the problem that the existing waterproof structure is inconvenient to use due to the fact that the existing waterproof structure is directly arranged on the outer side of a switch in a large number of times is solved;

through the end plate, the curb plate, first gear, and the cooperation between the second gear, the folding rotation of a plurality of end plates and curb plate or the in-process of opening, because the meshing design of first gear and second gear, the radius size that gradually bursts at seams of its gear is unanimous with the terminal radius size of end plate and curb plate, make at the meshing in-process, the adjacent department of a plurality of end plates and curb plate is laminated each other, can prevent that water from flowing into from the laminating gap department of a plurality of end plates and curb plates, avoided rotating at end plate and curb plate and expanded the problem that waterproof in-process rivers got into from the gap department easily.

Drawings

FIG. 1 is a schematic view of the external structure of the present invention;

FIG. 2 is a partial schematic view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 1;

FIG. 4 is an enlarged view of the structure at B in FIG. 1;

FIG. 5 is a schematic front view of the present invention;

fig. 6 is a right-view structural diagram of the present invention.

In the figure: 1. the top cover, 2, waterproof component, 201, the side panel, 202, the up end plate, 203, first gear, 204, the end plate, 205, the second gear, 206, the curb plate, 207, even board, 3, spacing subassembly, 301, the riser, 302, the lug, 303, the backplate, 304, the round bar, 305, the spout, 4, power component, 401, first bevel gear, 402, first pivot, 403, the third bevel gear, 404, the second bevel gear, 405, the second pivot, 406, the third pivot, 407, the fourth bevel gear, 408, the motor, 5, the frame, 6, the glass board, 7, the wiring hole, 8, the bolt hole, 9, the knob, 10, the display screen, 11, the button, 12, the pilot lamp, 13, control protection switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a fire-fighting waterproof KBO control and protection switch comprises a control protection switch 13 and a top cover 1, wherein the rear side of the upper end of the control protection switch 13 is fixedly connected with the top cover 1, four corners of the lower end of the top cover 1 are fixedly connected with a frame 5, a plurality of wiring holes 7 are processed at the upper end of the control protection switch 13, the wiring holes 7 can be used for wiring, the wiring fixation is realized by screwing bolts in the bolt holes 8, the bolt holes 8 are processed at the front ends of the wiring holes 7, a knob 9 is installed at the center of the front end of a control protection switch 13, the knob 9 can be used for adjusting the control capability of the control protection switch 13, a display screen 10 and an indicator lamp 12 are installed below the front portion of the control protection switch 13, a limiting component 3 is installed on the outer wall of the frame 5, a waterproof component 2 is installed on the inner side of the limiting component 3, a power component 4 is installed on one side of the upper portion of the waterproof component 2, and a plurality of buttons 11 are installed at the lower end of the front portion of the control protection switch 13;

through the matching among the motor 408, the third bevel gear 403, the fourth bevel gear 407, the first rotating shaft 402, the end plate 202, the side plate 201 and the second rotating shaft 405, the motor 408 is started, so that the motor 408 can drive the first rotating shaft 402 and the end plate 202 to rotate through the third bevel gear 403 and the fourth bevel gear 407, meanwhile, the first rotating shaft 402 can drive the second rotating shaft 405 and the side plate 201 to rotate through the first bevel gear 401 and the second bevel gear 404, and through the transmission among a plurality of bevel gears, the plurality of second rotating shafts 405, the first rotating shaft 402, the side plate 201 and the end plate 202 synchronously rotate, thereby avoiding the problem that the outer waterproof structure is not convenient for synchronous extension and retraction and is easy to cause interference or missing under long-term use;

because this waterproof construction's drive process only needs this power supply drive of motor 408, only needs to insert fire alarm control system with motor 408's control module in the use, when detecting the conflagration, motor 408 can be started along with corresponding shower head automatically, realizes the waterproof protection operation, has avoided needing a large amount of control module control to realize its waterproof work when meetting the conflagration and has leaded to the condition that the inefficacy appears easily.

The waterproof assembly 2 comprises an upper side plate 201, an upper side plate 202, a first gear 203, an end plate 204, a second gear 205, side plates 206 and a connecting plate 207, wherein the plurality of upper side plates 201 are respectively positioned at the left side and the right side of the outer wall of the top cover 1, the lower side of the upper side plate 201 is provided with the plurality of side plates 206, the second gears 205 are fixedly connected below the front ends and the rear ends of the plurality of side plates 206 and the upper side plate 201, the upper side plate 201 can rotate to drive the plurality of side plates 206 to synchronously rotate through the first gear 203 and the second gear 205, the first gear 203 is fixedly connected above the front ends and the rear ends of the plurality of side plates 206, the upper end plate 202 can rotate to drive the plurality of end plates 204 to synchronously rotate through the first gear 203 and the second gear 205, the upper end plate 202 is positioned at one side of the front part of the outer wall of the top cover 1, the lower side of the upper end plate 202 is provided with the plurality of end plates 204, the second gears 205 are fixedly connected below the left ends and the right ends of the upper end plate 202, the upper parts of the left and right tail ends of the end plates 204 are fixedly connected with first gears 203, the adjacent first gears 203 and second gears 205 are meshed with each other, the outer walls of the inner shafts of the first gears 203 and the second gears 205 are rotatably connected with connecting plates 207, the height sizes of the end plates 204 and the side plates 206 are consistent, the height of the upper side plate 201 is half of that of the side plate 206, and the height of the upper end plate 202 is half of that of the end plate 204;

through the cooperation between upper end plate 202, go up side panel 201, first gear 203, second gear 205, curb plate 206 and the end plate 204, the synchronous rotation of upper end plate 202 and last side panel 201 makes upper end plate 202 and last side panel 201 accessible a plurality of first gears 203 and the meshing of second gear 205 realize a plurality of end plates 204 and curb plate 206 and fold and rotate, realize that the rotation of a plurality of end plates 204 and curb plate 206 is piled up or is rotated and expand, avoided current waterproof construction to beat many direct mountings outside the switch and lead to using inconvenient problem.

The limiting component 3 comprises vertical plates 301, convex blocks 302, a protection plate 303, round rods 304 and sliding grooves 305, the vertical plates 301 are fixedly connected to the outer side of the outer wall of the frame 5 respectively, the sliding grooves 305 are machined in the outer sides of the vertical plates 301, the round rods 304 are uniformly distributed in the sliding grooves 305 at equal intervals, the round rods 304 limit the side plates 206 and the end plate 204 to rotate only along the centers of the round rods, the round rods 304 are connected with the sliding grooves 305 in a sliding mode, the convex blocks 302 are fixedly connected to the tail ends of the outer wall of the round rods 304, the convex blocks 302 are fixedly connected to the centers of the two ends of the end plate 204 and the side plate 206 respectively, the protection plate 303 is arranged on the outer wall of the round rods 304 and used for protecting the round rods 304, one side of the outer wall of the protection plate 303 is fixedly connected with the vertical plates 301, glass plates are arranged on two sides of corners of the outer wall of the frame 5, 6 are fixedly connected with the frame 5, and the outer sides of the glass plates 6 are fixedly connected with the vertical plates 301;

through the cooperation between end plate 204, curb plate 206, first gear 203, and second gear 205, the folding of a plurality of end plates 204 and curb plate 206 is rotated or is opened the in-process, because the meshing design of first gear 203 and second gear 205, the involute radius size of its gear is unanimous with the terminal radius size of end plate 204 and curb plate 206, make in the meshing process, the adjacent department of a plurality of end plates 204 and curb plate 206 is laminated each other, can prevent that water from flowing in from the laminating gap of a plurality of end plates 204 and curb plate 206, avoided end plate 204 and curb plate 206 rotate and expand waterproof in-process rivers and easily get into from the gap problem.

The power assembly 4 comprises a first bevel gear 401, a first rotating shaft 402, a third bevel gear 403, a second bevel gear 404, a second rotating shaft 405, a third rotating shaft 406, a fourth bevel gear 407 and a motor 408, the motor 408 is fixedly connected to one side of the inner wall of the top cover 1, the motor 408 is a servo motor, the specific use type can be determined according to the required size, the output shaft of the motor 408 is fixedly connected with the fourth bevel gear 407 through the third rotating shaft 406, the motor 408 can drive the first rotating shaft 402 and the upper end plate 202 to rotate through the fourth bevel gear 407 and the third bevel gear 403, the left side of the outer wall of the fourth bevel gear 407 is meshed and connected with the third bevel gear 403, the inner wall of the third bevel gear 403 is fixedly connected with the first rotating shaft 402, the center of the outer wall of the first rotating shaft 402 is fixedly connected with the upper end plate 202, both sides of the outer wall of the first rotating shaft 402 are rotatably connected with the vertical plate 301 through bearings, the first rotating shaft 402 can drive a plurality of second rotating shafts 405 to rotate through the second bevel gear 404 and the first bevel gear 401, the tail ends of two sides of the first rotating shaft 402 are fixedly connected with second bevel gears 404, the outer walls of the second bevel gears 404 are meshed with and connected with first bevel gears 401, the inner sides of the inner walls of the first bevel gears 401 are fixedly connected with second rotating shafts 405, the centers of the outer walls of the second rotating shafts 405 are fixedly connected with the upper side plate 201, and two sides of the outer wall of each second rotating shaft 405 are rotatably connected with the vertical plate 301 through bearings.

When the fire-fighting waterproof KBO control and protection switch is required to be used, firstly, a user can insert a cable for connection into the wiring hole 7 and screw down the bolt in the bolt hole 8 to control the connection wiring of the protection switch 13, when the fire-fighting waterproof KBO control and protection switch is used, the operation of starting, stopping and the like can be realized by pressing the button 11, the control can be realized by rotating the knob 9, when the fire-fighting waterproof KBO control and protection switch is used in case of fire, the early warning device informs the water diffuser and simultaneously starts the motor 408, so that the motor 408 can drive the first rotating shaft 402 and the end plate 202 to rotate by the third bevel gear 403 and the fourth bevel gear 407, meanwhile, the first rotating shaft 402 can drive the second rotating shaft 405 and the side plate 201 to rotate by the first bevel gear 401 and the second bevel gear 404, and the plurality of second rotating shafts 405, the first rotating shaft 402, the side plate 201 and the end plate 202 can synchronously rotate by the transmission among the plurality of bevel gears, the problem that interference or missing can easily occur under long-term use caused by the fact that the waterproof structure on the outer side is not convenient to synchronously extend and retract is solved, the upper end plate 202 and the upper side plate 201 synchronously rotate, the upper end plate 202 and the upper side plate 201 can be folded and rotated through the meshing of the first gears 203 and the second gears 205, the end plates 204 and the side plates 206 can be rotated, stacked or rotated and unfolded, the problem that the existing waterproof structure is frequently and directly installed on the outer side of a switch to cause inconvenience in use is solved, in the folding, rotating or opening process of the end plates 204 and the side plates 206, due to the meshing design of the first gears 203 and the second gears 205, the involute radius size of the gears is consistent with the radius size of the tail ends of the end plates 204 and the side plates 206, in the meshing process, the adjacent positions of the end plates 204 and the side plates 206 are mutually attached, water can be prevented from flowing into the attachment gaps of the end plates 204 and the side plates 206, avoided rotating at end plate 204 and curb plate 206 and expand the problem that waterproof in-process rivers got into from the gap easily, simultaneously because this waterproof construction's drive process only needs this power supply drive of motor 408, only need insert fire alarm control system with the control module of motor 408 in the use, when detecting the conflagration, motor 408 can be followed the shower head that corresponds automatically and started, realize the waterproof protection operation, avoided needing a large amount of control module control to realize its waterproof work when meetting the conflagration and lead to appearing the condition of inefficacy easily.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.