WO2020186707A1

WO2020186707A1 - Plate-penetrating pipe joint with check valve function, and fuel battery

Info

Publication number: WO2020186707A1
Application number: PCT/CN2019/105383
Authority: WO
Inventors: 李勇; 梁未栋; 邓佳; 韦庆省; 王宏旭; 张振涛; 李国坚; 易勇; 赵勇富; 刘静; 刘华
Original assignee: 中山大洋电机股份有限公司
Priority date: 2019-03-18
Filing date: 2019-09-11
Publication date: 2020-09-24

Abstract

A plate-penetrating pipe joint with a check valve function, and a fuel battery. The plate-penetrating pipe joint with a check valve function comprises a pipe joint (1) and a check valve device (2), wherein a pipeline cavity (11) is provided in the pipe joint (1), and the check valve device (2) is mounted in the pipeline cavity (11). The plate-penetrating pipe joint with a check valve function is simple in terms of structure, convenient to mount, low in terms of manufacturing cost and small in terms of occupied space; and the processing material and labor costs of the check valve device (2) are relatively low, and the assembling processes and parts are reduced.

Description

Piercing pipe joint with check valve function and fuel cell

Technical field:

The utility model relates to a through plate pipe joint with a check valve function and a fuel cell.

Background technique:

A fuel cell is a power generation device that can directly convert the chemical energy stored in the fuel into electrical energy through an electrochemical reaction. The device that performs chemical reactions is often called a "pile" or a "pile module". The cathode side is continuously supplied with fuel (generally hydrogen) and oxidant (generally air), and it can continuously output electric energy through the oxidation-reduction reaction. Unlike ordinary rechargeable batteries (such as lithium batteries), a simple fuel cell or fuel cell stack unit cannot work. It needs a complex auxiliary system to cooperate with it to form a fuel cell power generation system to generate electricity. . Its structure is shown in Figure 1, including a stack module, an electrical control component (not shown), a hydrogen circuit system, a cooling circuit system and an air circuit system. The hydrogen circuit system includes a hydrogen inlet valve assembly, a hydrogen circulation pump and Purge valve; the stack module is made up of several fuel cell cells stacked from bottom to top, the cooling circuit system includes a water pump, a water pump controller, and a thermostat; the air path system includes air compression Engine, air cooler, humidifier; the stack module, electrical control components, and hydrogen circuit system are installed in a box to form the main working module of the fuel cell.

In order to meet the IP67 protection level of the existing fuel cell box structure, the compressed air inlet and outlet inside and outside the battery box are all sealed and assembled by O-rings, screws, and pipe joints with flanges. The fuel cell stack air circuit outlet connector is connected to the stack on the inner side, and the check valve is connected on the outer side, and then connected to the tailpipe; the check valve (or baffle valve) installed at the air circuit outlet of the stack is to prevent When the fuel cell is shut down, harmful substances enter the stack from the outlet, and then damage the stack. This kind of independent check valve parts occupies a large space, processing materials and labor costs are high, and there are many assembly processes and parts.

Utility model content:

The purpose of the present invention is to provide a through-plate pipe joint with a check valve function and a fuel cell, which solves the need for an independent check valve installed externally at the outlet of the air path in the prior art, and this independent check valve component Technical problems such as large space occupation, high processing material and labor costs, and more assembly procedures and parts.

The purpose of the utility model is achieved through the following technical solutions.

The first purpose of the utility model is to provide a through plate pipe joint with a check valve function, which includes a pipe joint and a check valve device. The pipe joint is provided with a pipe cavity, and the check valve is installed in the pipe cavity Device.

The above-mentioned check valve device includes a fixed block, a spring, a folding column and a diaphragm assembly. The fixed block is installed in the pipeline cavity, the folding column is installed on the fixed block by screws, and the middle of the folding column is covered with a spring. The middle of the diaphragm assembly is clamped between the fixed block and the folding column. The middle of the diaphragm assembly is pressed on the fixed block by the folding column and divided into two halves. The two ends of the spring are respectively pressed against the left half of the diaphragm assembly. And on the right half of the diaphragm assembly, the edge of the diaphragm assembly is in contact with the inner wall of the pipe cavity.

The above-mentioned diaphragm assembly is V-shaped.

A limit post is arranged in the pipeline cavity behind the above-mentioned check valve device.

The above-mentioned diaphragm assembly includes a left fixing plate, a right fixing plate, a left pressure plate, a right pressure plate and a whole diaphragm. The left half of the diaphragm is clamped and installed together by the left fixing plate and the left pressure plate. The half is clamped and installed together by the right fixing plate and the right pressure plate.

The above-mentioned fixing block is provided with a mounting groove on the top, and notches are respectively provided on both sides of the mounting groove. The middle of the diaphragm assembly is pressed in the mounting groove by the folding column, and the inner sides of the left and right fixing plates are respectively clamped in the notches. inside.

The above-mentioned fixing block is installed in the pipe cavity of the pipe joint through the sealing gasket and the first screw. Both the top and bottom of the fixing block are provided with screw holes. The end of the first screw extends into the pipe cavity from the pipe joint. The inside is screwed into the screw holes on the top and bottom of the fixing block, and the screw head of the first screw and the outer wall of the pipe joint are sealed with a gasket.

The inner wall of the pipe cavity described above is provided with a first slot, the fixed block includes a fixed block body, a first fixed block, a second fixed block and an adjusting stud, and a horizontal installation pipe is arranged in the fixed block body, The bottom of the fixed block body is provided with an adjusting groove, which is connected to the middle of the installation pipe. The first and second fixed blocks are installed in the installation pipe. The adjusting stud is installed in the adjusting groove. The top of the adjusting stud is provided with a taper. , The cone head is inserted into the installation pipe and is located between the first fixed block and the second fixed block, and the cone head pushes the first fixed block and the second fixed block out of the fixed block body and abuts into the first slot.

The end surfaces of the first fixed block and the second fixed block are provided with arc surfaces, and the arc surfaces are arranged in cooperation with the outer surface of the cone head.

The inner wall of the above-mentioned pipeline cavity is further provided with a second clamping slot, the first clamping slot and the second clamping slot are respectively located at two ends of the cavity, the limit post is installed in the second clamping slot, and the limit post It includes an adjusting rod, a first stud and a second stud. Both ends of the adjusting rod are provided with external threads. The first stud and the second stud are provided with internal threads that cooperate with the external threads. The ends are respectively screwed into the first stud and the second stud, and the first stud and the second stud are clamped in the second slot to fix the limit post.

The ends of the above-mentioned first stud and the second stud are protruded with clamping blocks, and the clamping blocks are clamped in the second clamping slot.

The above-mentioned folding column includes a fixed rod, a first fixed sleeve, and a second fixed sleeve. The spring is sleeved in the middle of the fixed rod. The first fixed sleeve and the second fixed sleeve are respectively sleeved on the fixed rod and located on the spring. On both sides, the first fixing sleeve and the second fixing sleeve are provided with through holes, the diaphragm is provided with mounting holes corresponding to the through holes, and the screws are installed in the through holes and the mounting holes. The tail is installed on the fixed block.

A mounting plate is connected to the outside of the middle part of the pipe joint described above, and the mounting plate has a mounting hole.

The above-mentioned mounting plate is also provided with a water pipe joint, and the water pipe joint and the pipe joint are spaced side by side by a certain distance.

The above-mentioned water pipe joint, pipe joint and mounting plate are integrally formed by injection molding.

The second purpose of the utility model is to provide a fuel cell, including a box body, a stack module and a through plate pipe joint. The stack module is installed in the box body, and the air input port and the air output port of the stack module pass through the pipe. The path extends close to the box, and a through plate pipe joint is provided at the end of the pipeline. The through plate pipe joint is the through plate pipe joint with check valve function described in the first embodiment, which is connected outside the middle of the pipe joint There is a mounting plate with mounting holes. The mounting plate is attached to the outer panel of the box. One end of the pipe joint extends into the box through the through hole on the side wall of the box and is connected to a certain pipeline.

The above-mentioned mounting plate is also provided with a water pipe joint. The water pipe joint and the pipe joint are separated by a certain distance. One end of the water pipe joint penetrates the through hole of the side wall of the box body and extends into the box body and is connected with a certain pipeline.

Compared with the prior art, the utility model has the following effects:

1) The through-plate pipe joint with check valve function of the present invention includes a pipe joint and a check valve device. The pipe joint is provided with a pipe cavity, which is characterized in that a check valve device is installed in the pipe cavity. Simple structure, convenient installation, low manufacturing cost and small space occupation;

2) The other advantages of the utility model are described in detail in the embodiment section.

Description of the drawings:

Figure 1 is a schematic block diagram of a fuel cell in the prior art;

Fig. 2 is a perspective view of the through plate pipe joint of the first embodiment of the present invention from an angle;

Figure 3 is an exploded view of the through plate pipe joint of the first embodiment of the present invention;

Figure 4 is a front view of the through plate pipe joint of the first embodiment of the present invention;

Figure 5 is a cross-sectional view of Figure 4 A-A;

Figure 6 is a B-B sectional view of Figure 5;

Figure 7 is a perspective view of the check valve device of the first embodiment of the present invention;

Figure 8 is an exploded view of the check valve device of the first embodiment of the present invention;

Figure 9 is a perspective view of the diaphragm assembly of the first embodiment of the present invention;

Figure 10 is an exploded view of a diaphragm assembly according to an embodiment of the present invention;

Figure 11 is an exploded view of a spring and a hinge column according to an embodiment of the present invention;

Figure 12 is a perspective view of a through plate pipe joint according to the second embodiment of the present invention;

Figure 13 is a front view of a through plate pipe joint according to the second embodiment of the present invention;

Figure 14 is a C-C cross-sectional view of Figure 13;

Figure 15 is a D-D cross-sectional view of Figure 14;

Fig. 16 is an exploded view of the limiting column of the second embodiment of the present invention;

FIG. 17 is an exploded view of the fixing block of the second embodiment of the present invention;

Figure 18 is a perspective view of a fuel cell according to the third embodiment of the present invention;

Fig. 19 is an exploded view of the fuel cell according to the third embodiment of the present invention.

detailed description:

Hereinafter, the present utility model will be further described in detail through specific embodiments in conjunction with the drawings.

Example one:

As shown in Figures 2 to 11, this embodiment provides a through plate pipe joint with a check valve function, including a pipe joint 1 and a check valve device 2. The pipe joint 1 is provided with a pipe cavity 11, A check valve device 2 is installed in the pipeline cavity 11. It has simple structure, convenient installation, low manufacturing cost, small space occupation, low processing material and labor cost of the check valve device 2, and small assembly procedures and parts.

The above-mentioned check valve device 2 includes a fixed block 21, a spring 22, a folding post 23, and a diaphragm assembly 24. The fixed block 21 is installed in the pipe cavity 11, and the folding post 23 is installed on the fixed block 21 by screws 27. Above, the middle of the folding column 23 is fitted with a spring 22, the middle of the diaphragm assembly 24 is clamped between the fixed block 21 and the folding column 23, and the middle of the diaphragm assembly 24 is pressed against the fixed block 21 by the folding column 23 It is divided into left and right halves. The two ends of the spring 22 are respectively pressed against the left half diaphragm assembly 24a and the right half diaphragm assembly 24b. The edge of the diaphragm assembly 24 is in contact with the inner wall of the pipe cavity 11. It has simple structure, small volume, high integration of parts and low manufacturing cost. The spring is used to reset the diaphragm assembly 24.

The above-mentioned diaphragm assembly 24 is V-shaped. Easy to open and close to cut off or close the air path.

A limit post 28 is provided in the pipeline cavity 11 behind the check valve device 2 described above. When the left half diaphragm assembly 24a and the right half diaphragm assembly 24b of the check valve device 2 are folded, the air path is opened, and the left half diaphragm assembly 24a and the right half diaphragm assembly 24b touch the limit post 28 and cannot Close up.

The diaphragm assembly 24 described above includes a left fixing plate 241a, a right fixing plate 241b, a left pressing plate 242a, a right pressing plate 242b and a whole diaphragm 243. The left half 243a of the diaphragm 243 is covered by the left fixing plate 241a and the left pressing plate 242a. The right half 243b of the diaphragm 243 is clamped and installed together by the right fixing plate 241b and the right pressure plate 242b. The simple monolithic diaphragm 243 is very soft and difficult to control. It must be matched with the left fixing plate 241a, right fixing plate 241b, left pressing plate 242a, and right pressing plate 242b to reach a certain strength before it can be reliably controlled. The diaphragm assembly 24 is used to open and close the passage of the air outlet (ie the pipe cavity 11) and automatically close the pipe cavity 11 when the machine is stopped; the left fixing plate 241a and the right fixing plate 241b limit the left half of the diaphragm assembly 24a of the diaphragm , The right half of the diaphragm assembly 24b movement range; the left pressure plate 242a, the right pressure plate 242b are used to press the diaphragm 243 on the left fixed plate 241a, the right fixed plate 241b, and bear the elastic force of the spring 22; the spring 22 is symmetrical torsion The two arms of the torsion spring press on the left pressure plate 242a and the right pressure plate 242b.

As mentioned above, a limit post 12 is provided in the pipeline cavity 11 behind the check valve device 2. When the left half diaphragm assembly 24a and the right half diaphragm assembly 24b of the check valve device 2 are folded, the air path is opened, and the left half The diaphragm assembly 24a and the right half diaphragm assembly 24b hit the limit post 12 and cannot be folded.

The above-mentioned fixing block 21 is provided with a mounting groove 218 on the top, and notches 219 are respectively provided on both sides of the mounting groove 218. The middle of the diaphragm assembly 24 is pressed in the mounting groove 218 by the folding column 23, and the left fixing plate 241a, right The inner sides of the fixing plate 241b are respectively clamped in the notches 219. The function of the notch 219 is to block the pipe cavity 11 when the left half diaphragm assembly 24a and the right half diaphragm assembly 24b are opened. The notch 219 restricts the opening angle of the left fixing plate 241a and the right fixing plate 241b.

The above-mentioned fixing block 21 is installed in the pipe cavity 11 of the pipe joint 1 through the sealing gasket 25 and the first screw 26. Both the top and the bottom of the fixing block 21 are provided with screw holes 211, and the end of the first screw 26 is from The pipe joint 1 extends into the pipe cavity 11 and is screwed into the screw holes 211 on the top and bottom of the fixing block 21. The screw head of the first screw 26 and the outer wall of the pipe joint 1 are sealed with a gasket 25.

The aforementioned folding column 23 includes a fixed rod 231, a first fixed sleeve 232a, and a second fixed sleeve 232b. The spring 22 is sleeved in the middle of the fixed rod 231. The first fixed sleeve 232a and the second fixed sleeve 232b are respectively It is sleeved on the fixed rod 231 and located on both sides of the spring 22. The first fixed sleeve 232a and the second fixed sleeve 232b are provided with through

holes

233a and 233b, and the diaphragm 243 is provided with through

holes

233a and 233b corresponding to the through

holes

233a and 233b. The screw 27 is installed in the mounting holes 244a, 244b of the through

holes

233a, 233b and the mounting holes 244a, 244b, and the tail of the screw 27 is mounted on the fixing block 21.

As described above, a mounting plate 100 is connected to the outside of the middle of the pipe joint 1, and the mounting plate 100 has a mounting hole 101. The through plate pipe joint is easy to install; the installation plate 100 is also provided with a water pipe joint 3, and the water pipe joint 3 and the pipe joint 1 are separated by a certain distance, which increases the functional structure, reduces the parts, and is easy to install; the water pipe joint 3 and the pipe joint 1 and the mounting plate 100 integrated injection molding, simple structure, strong integrity, reduce the number of parts, easy to install and maintain. The water pipe joint 3 is mainly connected to the cooling water circuit, and there is no valve body in the water pipe joint 3

The principle of the present invention is: when the fuel cell is working, the air compressor works to provide a certain pressure of air through the through plate pipe joint with check valve function, and the high-pressure air enters the pipe cavity 11, overcomes the resistance of the spring 22 and pushes open The left half of the diaphragm assembly 24a and the right half of the diaphragm assembly 24b, the left half of the diaphragm assembly 24a and the right half of the diaphragm assembly 24b are folded around the folding column 23 to open the air flow path of the pipe cavity 11; when the fuel cell stops When working, the air compressor also stops working, and the air pressure in the pipe cavity 11 becomes normal. Under the action of the spring 22, the left half diaphragm assembly 24a and the right half diaphragm assembly 24b open and block the air in the pipe cavity 11 again. The runner prevents foreign objects from entering.

Embodiment two:

As shown in Figures 12 to 17, the bulkhead pipe joint with check valve function provided in this embodiment is similar to the bulkhead pipe joint with check valve function described in the first embodiment. The difference is:

The inner wall of the aforementioned pipe cavity 11 is provided with a first slot 12, and the fixed block 21 includes a fixed block body 210, a first fixed block 212a, a second fixed block 212b, and an adjustment stud 213. The fixed block body 210 A horizontal installation pipe 214 is provided inside. The bottom of the fixed block body 210 is provided with an adjustment groove 215. The adjustment groove 215 is connected to the middle of the installation pipe 214. The first fixing block 212a and the second fixing block 212b are installed in the installation pipe 214. The stud 213 is installed in the adjustment groove 215. The top of the adjustment stud 213 is provided with a cone 216. The cone 216 is inserted into the installation pipe 214 and is located between the first fixing block 212a and the second fixing block 212b. The first fixing block 212a and the second fixing block 212b are pushed out of the fixing block body 210 and pressed into the first slot 12. The fixed block 21 has a simple structure. The position of the taper head 216 is adjusted by rotating the adjusting stud 213, thereby adjusting the distance between the first fixed block 212a and the second fixed block 212b, so that the fixed block 21 is firmly installed. There is no need to open holes on the cylindrical shell 1, which improves the sealing performance of the check valve. The valve assembly 2 is installed in the first slot, which has a simple structure, strong integrity, convenient assembly and low production cost.

The end surfaces of the first fixing block 212a and the second fixing block 212b are provided with an arc surface 217, and the arc surface 217 is arranged in cooperation with the outer surface of the cone. It is ensured that the adjustment of the first fixing block 212a and the second fixing block 212b is accurate.

The inner wall of the pipe cavity 11 described above is further provided with a second clamping slot 13, the first clamping slot 12 and the second clamping slot 13 are respectively located at both ends of the pipe cavity 11, and the limiting post 28 is installed in the second clamping slot 13, the limit post 28 includes an adjusting rod 281, a first stud 282a, and a second stud 282b. Both ends of the adjusting rod 281 are provided with external threads. The first stud 282a and the second stud 282b are provided with There is an internal thread that matches the external thread. Both ends of the adjusting rod 281 are screwed into the first stud 282a and the second stud 282b, respectively, and the first stud 282a and the second stud 282b are clamped in the second slot 13 Internal fixed limit column 28. The limit post 28 is detachably installed in the cavity 11, which is easy to assemble, and the production cost is further reduced. There is no need to open holes on the cylindrical housing 1, which improves the sealing performance of the check valve. When the left half of the diaphragm assembly 24a and the right half of the diaphragm assembly 24b are folded to open the air path, the left half of the diaphragm assembly 24a and the right half of the diaphragm assembly 24b hit the limit post 28 and can no longer be folded.

The ends of the above-mentioned first stud 282 a and the second stud 282 b both protrude with a blocking block 283, and the blocking block 283 is clamped in the second clamping slot 13. The blocking block 283 can prevent the limit post 28 from rotating, and make the installation of the limit post 28 firmer.

Mounting and fixing parts are provided at both ends of the outer surface of the cylindrical housing 1 described above. The above-mentioned mounting and fixing part is an arc-shaped boss. The installation fixing part is used for connection with an external pipe body, such as a rubber hose or a pipe clamp.

Example three:

As shown in Figures 18 to 19, this embodiment provides a fuel cell, which includes a box 200, a stack module 300, and a bulkhead pipe joint 400. The stack module 300 is installed in the box 200. The stack module The air input port and the air output port of 300 extend through the pipeline 500 close to the box 200, and a through-plate pipe joint 400 is provided at the end of the pipe 500. The through-plate pipe joint 400 is described in the first or second embodiment. In the above-mentioned through-plate pipe joint with check valve function, a mounting plate 100 is connected to the outside of the middle of the pipe joint 1, and the mounting plate 100 is provided with mounting holes. The mounting plate 100 is attached to the outer plate of the box 200, the pipe joint 1 One end passes through the through hole on the side wall of the box body 200 and extends into the box body 200 and is connected to a certain pipeline 500.

The above-mentioned mounting plate 100 is also provided with a water pipe joint 3, which is side by side and spaced apart from the pipe joint 1 by a certain distance. One end of the water pipe joint 3 penetrates the through hole in the side wall of the box body 200 and extends into the box body 200 and connects with a certain distance. A pipeline connection.

The air input port and the air output port of the stack module 300 in a fuel cell of the present invention extend through the pipeline 500 close to the box 200, and a through plate pipe joint 400 is provided at the end of the pipeline 500, with a check valve function The through plate pipe joint 400 includes a pipe joint 1 and a check valve device 2. The pipe joint 2 is provided with a pipe cavity 22, which is characterized in that: a check valve device 2 is installed in the pipe cavity 22, which has a simple structure and is installed Convenient, low manufacturing cost, and small space occupation. The check valve device 2 has lower processing materials and labor costs, and smaller assembly procedures and parts.

The above embodiments are the preferred embodiments of the utility model, but the embodiments of the utility model are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the utility model are all The equivalent replacement methods are all included in the protection scope of the present invention.

Claims

A through plate pipe joint with a check valve function, comprising a pipe joint (1) and a check valve device (2). The pipe joint (1) is provided with a pipe cavity (11), and the pipe cavity (11) Install the check valve device (2) inside.
The through-board pipe joint with check valve function according to claim 1, characterized in that: the check valve device (2) includes a fixed block (21), a spring (22), and a folding column ( 23) and the diaphragm assembly (24), the fixing block (21) is installed in the pipe cavity (11), the folding column (23) is installed on the fixing block (21) by screws (27), the folding column (23) ) Is fitted with a spring (22) in the middle, the diaphragm assembly (24) is sandwiched between the fixed block (21) and the folding column (23), and the middle of the diaphragm assembly (24) is folded by the folding column (23) Compressed on the fixed block (21) and divided into left and right halves, the two ends of the spring (22) are respectively pressed against the left half diaphragm assembly (24a) and the right half diaphragm assembly (24b), the diaphragm assembly (24) The edge of the tube is in contact with the inner wall of the pipe cavity (11).
The through-plate pipe joint with check valve function according to claim 2, wherein the diaphragm assembly (24) is V-shaped.
The through-plate pipe joint with check valve function according to claim 2 or 3, characterized in that: a limit column (11) is arranged in the pipeline cavity (11) behind the check valve device (2) 28).
The through-plate pipe joint with check valve function according to claim 4, characterized in that: the diaphragm assembly (24) comprises a left fixing plate (241a), a right fixing plate (241b), and a left pressing plate (242a), the right pressure plate (242b) and the entire diaphragm (243). The left half (243a) of the diaphragm (243) is clamped and installed together by the left fixing plate (241a) and the left pressure plate (242a). The right half (243b) of the sheet (243) is clamped and installed together by the right fixing plate (241b) and the right pressing plate (242b).
The through plate pipe joint with check valve function according to claim 5, characterized in that: the top of the fixing block (21) is provided with a mounting groove (218), and the mounting groove (218) is provided on both sides A notch (219) is provided, the middle of the diaphragm assembly (24) is pressed into the mounting groove (218) by the folding column (23), and the inner sides of the left fixing plate (241a) and the right fixing plate (241b) are respectively stuck in the notch (219) Inside.
The through-plate pipe joint with check valve function according to claim 6, characterized in that: the fixed block (21) is installed on the pipe joint (21) through a gasket (25) and a first screw (26). In the pipe cavity (11) of 1), the top and bottom of the fixing block (21) are provided with screw holes (211), and the end of the first screw (26) extends into the pipe cavity from the pipe joint (1) (11) The inside is screwed into the screw holes (211) at the top and bottom of the fixing block (21), and the screw head of the first screw (26) and the outer wall of the pipe joint (1) are sealed with a gasket (25).
The through-plate pipe joint with check valve function according to claim 6, characterized in that: the inner wall of the pipeline cavity (11) is provided with a first slot (12), and the fixing block ( 21) Including a fixing block body (210), a first fixing block (212a), a second fixing block (212b) and an adjusting stud (213). The fixing block body (210) is provided with a horizontal installation pipe (214), The bottom of the fixed block body (210) is provided with an adjusting groove (215), the adjusting groove (215) is connected to the middle of the installation pipe (214), and the first fixed block (212a) and the second fixed block (212b) are installed in the installation pipe ( In 214), the adjustment stud (213) is installed in the adjustment groove (215), the top of the adjustment stud (213) is provided with a cone (216), and the cone (216) is inserted into the installation pipe (214) and is located at the Between a fixed block (212a) and a second fixed block (212b), the taper head (216) pushes the first fixed block (212a) and the second fixed block (212b) out of the fixed block body (210) and abuts on the Inside a card slot (12).
The through-plate pipe joint with check valve function according to claim 8, characterized in that: the end faces of the first fixing block (212a) and the second fixing block (212b) are provided with curved surfaces (217) , The arc surface (217) is matched with the outer surface of the cone (216).
The through-board pipe joint with check valve function according to claim 9, characterized in that: the inner wall of the pipeline cavity (11) is also provided with a second slot (13), and a first slot (12) and the second clamping slot (13) are respectively located at both ends of the pipe cavity (11), the limiting post (28) is installed in the second clamping slot (13), and the limiting post (28) includes an adjusting rod (281), the first stud (282a) and the second stud (282b), both ends of the adjusting rod (281) are provided with external threads, the first stud (282a) and the second stud (282b) are provided There is an internal thread that matches with the external thread. The two ends of the adjusting rod (281) are screwed into the first stud (282a) and the second stud (282b) respectively. The first stud (282a) and the second stud The post (282b) is clamped in the second slot (13) to fix the limit post (28).
The compact check valve according to claim 10, characterized in that: the ends of the first stud (282a) and the second stud (282b) are protruded with a block (283), The clamping block (283) is stuck in the second clamping slot (13).
The through plate pipe joint with check valve function according to claim 5, characterized in that: the folding column (23) comprises a fixed rod (231) and a first fixed sleeve (232a), Two fixed sleeves (232b), the spring (22) is sleeved in the middle of the fixed rod (231), the first fixed sleeve (232a) and the second fixed sleeve (232b) are respectively sleeved on the fixed rod (231) and located on the spring (22) On both sides, the first fixed sleeve (232a) and the second fixed sleeve (232b) are provided with through holes (233a, 233b), and the diaphragm (243) is provided with through holes (233a, 233b) the corresponding mounting holes (244a, 244b), the screws (27) are installed in the through holes (233a, 233b) and the mounting holes (244a, 244b), and the tails of the screws (27) are installed on the fixing block (21 )on.
The through-plate pipe joint with check valve function according to claim 2, characterized in that: a mounting plate (100) is connected to the outside of the middle of the pipe joint (1), and the mounting plate (100) is With mounting holes (101).
The through-plate pipe joint with check valve function according to claim 13, characterized in that: the mounting plate (100) is also provided with a water pipe joint (3), a water pipe joint (3) and a pipe joint ( 1) A certain distance side by side.
The through-plate pipe joint with check valve function according to claim 14, characterized in that: the water pipe joint (3), the pipe joint (1) and the mounting plate (100) are integrally formed by injection molding.
A fuel cell includes a box (200), a stack module (300) and a through plate pipe joint (400). The stack module (300) is installed in the box (200), and the air in the stack module (300) The input port and the air output port extend close to the box (200) through the pipeline (500), and a through plate pipe joint (400) is provided at the end of the pipe (500). The through plate pipe joint (400) is right The through plate pipe joint with check valve function described in any one of requirements 1 to 15, a mounting plate (100) is connected to the outside of the middle of the pipe joint (1), and a mounting hole is provided on the mounting plate (100), The mounting plate (100) is attached to the outer panel of the box (200), and one end of the pipe joint (1) penetrates the through hole on the side wall of the box (200) to extend into the box (200) and connect with a certain pipeline ( 500) Connect.
The fuel cell according to claim 16, characterized in that: the mounting plate (100) is also provided with a water pipe joint (3), the water pipe joint (3) and the pipe joint (1) are spaced side by side by a certain distance, and the water pipe joint (3) One end passes through the through hole of the side wall of the box body (200) and extends into the box body (200) and is connected with a certain pipeline.