Air dryer housing and method of forming

Abstract

The application discloses an air dryer shell and a forming method, which comprises a dryer body and a partition part; the partition part divides a containing space into a first drying cavity and a second drying cavity; a first protruding part is arranged on the outer side wall of the dryer body and extends outward along the Z-axis direction, and an air inlet hole is formed in the first protruding part; the air outlet ends of the air inlet holes are respectively communicated with the first drying cavity and the second drying cavity; a second protruding part is arranged on the outer side wall of the dryer body and extends outward along the Z-axis direction, and an air outlet hole is formed in the second protruding part; an air outlet channel is arranged on the partition part; the dryer body is provided with a third protruding part and a fourth protruding part, a first demolding hole is formed in the third protruding part, and a second demolding hole is formed in the fourth protruding part. The application can reduce the size of the air dryer in the length direction, make the disassembly of the pipe joint or pipeline more convenient, and be beneficial to the demolding of the product in the injection molding process.

Description

Technical Field

[0001] This invention relates to the field of air dryer technology, specifically to an air dryer housing and its molding method. Background Technology

[0002] An air dryer is a device that removes oil and water from the air source of automotive braking systems, suspension systems, door opening and closing, and other auxiliary pneumatic devices. The air dryer dries the air compressed by the supercharger and sends the compressed dry air to the pneumatic control system.

[0003] Air dryers for air suspensions in related technologies include a shell with an approximately cylindrical shape and a desiccant filled within the shell. A compressor-side port for connection to an external compressor is formed at the middle of one axial end face of the shell, and a control system-side port for connection to a pneumatic control system is formed on the other axial end face. Furthermore, patent application CN202180083485.3 discloses an air dryer shell having a connecting device, particularly a connecting flange, for a desiccant container filled with desiccant and a compressed air supply unit having a compressed air flow. The connecting device is configured to connect the air dryer shell to the compressed air supply unit. The connecting device can be pressure-sealed to the desiccant container on the desiccant side. The connecting device has a valve body extending into the desiccant container on the desiccant side, a valve piston that can move within the valve body, and the valve body and valve piston form a venting valve unit configured as a pneumatic relay valve. The connecting device is configured to connect to a compressed air supply device on the equipment side, and the desiccant container can be traversed by compressed air flow in a first direction when the valve piston is in a first position, and by compressed air flow in a second direction when the valve piston is in a second position. Because this device arranges all pneumatic interfaces on the axial end face of the air dryer housing, external piping needs to be routed along the length of the air dryer housing, increasing the space occupied in the length direction of the air dryer housing, and making pipe installation and removal inconvenient. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the object of the present invention is to provide an air dryer housing and a molding method thereof.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] The first aspect of the present invention provides an air dryer housing, including a dryer body and a partition; the length direction of the dryer body is defined as the X-axis, its width direction as the Y-axis, and its thickness direction as the Z-axis;

[0007] The dryer body has an internal accommodating space, one end of the dryer body in the X-axis direction is an open end, and the other end in the X-axis direction is a closed end.

[0008] The partition extends along the X-axis and is disposed in the accommodating space, dividing the accommodating space into a first drying chamber and a second drying chamber for accommodating the desiccant.

[0009] A first protrusion is provided on the outer side wall of the dryer body extending outward along the Z-axis direction, and an air inlet is formed inside the first protrusion; the air inlet end of the air inlet is connected to the outside air, and its air outlet end is connected to the first drying chamber and the second drying chamber respectively.

[0010] A second protrusion is provided on the outer side wall of the dryer body extending outward along the Z-axis direction, and an exhaust hole is formed inside the second protrusion; the exhaust end of the exhaust hole is in communication with the outside air.

[0011] The partition is provided with an exhaust channel, which has a first air inlet, a second air inlet and an exhaust outlet. The first air inlet of the exhaust channel is connected to the first drying chamber, the second air inlet is connected to the second drying chamber, and the exhaust outlet is connected to the air inlet end of the exhaust hole of the second protrusion.

[0012] According to an embodiment of the present invention, in practical applications, the open end of the air dryer housing is closed by an outer cover. The first protrusion is connected to the compressed air output end of a compressed air supply device via a pipe joint or pipe. Compressed air enters the first drying chamber and the second drying chamber through the air inlet of the first protrusion for drying. The two portions of dried compressed air enter the exhaust channel through the first and second air inlets of the exhaust channel, respectively, and then enter the exhaust port of the second protrusion through the exhaust port of the exhaust channel. The second protrusion is then connected to the pneumatic control system via a pipe joint or pipe. Thus, the present invention divides the accommodating space into a first drying chamber and a second drying chamber for accommodating the desiccant through a partition, and provides an exhaust channel on the partition. Compared with the structure of a single drying chamber, under the condition of the same amount of desiccant, the length dimension of the dryer body can be reduced, reducing the space occupied in the length direction of the air dryer housing. At the same time, by providing a first protrusion with an air inlet and a second protrusion with an exhaust port in the thickness direction (i.e., the Z-axis direction) of the dryer body, the present invention can further reduce the length dimension of the air dryer and make the disassembly and assembly of pipe joints or pipes more convenient.

[0013] In a first aspect of the invention, as an optional embodiment, the exhaust channel includes a Y-direction connecting hole extending through the partition along the Y-axis, an X-direction connecting hole extending along the X-axis, and a Z-direction connecting hole extending along the Z-axis; a first end of the Y-direction connecting hole forms a first air inlet of the exhaust channel, and a second end forms a second air inlet of the exhaust channel; the middle portion of the Y-direction connecting hole communicates with the first end of the Z-direction connecting hole through the X-direction connecting hole, and the second end of the Z-direction connecting hole forms an exhaust outlet of the exhaust channel. This allows for smoother airflow and provides sufficient space for the formation of the second protrusion.

[0014] In a first aspect of the invention, as an optional embodiment, the dryer body is a one-piece molded structure. Thus, the one-piece molded structure of the dryer body of the present invention can improve processing accuracy and reduce material and processing costs.

[0015] In a first aspect of the invention, as an optional embodiment, the closed end of the dryer body extends outward along the X-axis and is provided with a third protrusion, the third protrusion having a first demolding hole formed inside; the first demolding hole communicates with the X-axis connecting hole, and the center lines of the first demolding hole and the X-axis connecting hole are located on the same X-axis.

[0016] A fourth protrusion is provided on the outer wall of the dryer body near the closed end, extending outward along the Y-axis direction. A second demolding hole is formed inside the fourth protrusion. The second demolding hole communicates with the Y-direction connecting hole, and the center lines of the second demolding hole and the Y-direction connecting hole are located on the same Y-axis.

[0017] A first sealing element is provided in the first demolding hole of the third protrusion, and a second sealing element is provided in the second demolding hole of the fourth protrusion.

[0018] Thus, to obtain a dryer body with an integrally molded structure, the present invention requires a first demolding hole and a second demolding hole during the injection molding process to form intersecting Y-axis and X-axis connecting holes. This allows the first end of the first insert to pass through the first demolding hole and extend into the second cavity along the X-axis during subsequent injection molding, while one end of the second insert can pass through the second demolding hole, pass through the through hole of the first insert along the Y-axis, and then penetrate into the second cavity. After injection molding is completed, the second insert and the first insert are removed sequentially to complete demolding, which facilitates subsequent demolding. Without the design of the first and second demolding holes, demolding of the injection-molded product would be impossible. Furthermore, by providing a third and a fourth protrusion, the present invention increases the length of the first and second demolding holes, providing sufficient space for filling the first and second sealing components.

[0019] In a first aspect of the invention, as an optional embodiment, the first sealing member is a first sphere, the radius of which is the same as the radius of the first demolding hole; the second sealing member is a second sphere, the radius of which is the same as the radius of the second demolding hole. Thus, during installation, the first sphere and the second sphere are pressed into their corresponding first and second demolding holes, offering advantages of convenient operation and good sealing effect.

[0020] In a first aspect of the invention, as an optional embodiment, the partition is provided with a fifth protrusion extending outward along the Z-axis direction, and the interior of the fifth protrusion has a mounting hole extending through the partition along the Z-axis direction.

[0021] Thus, by providing a mounting hole that penetrates the partition along the Z-axis, the present invention can connect the dryer body to the compressed air supply equipment along the Z-axis via a locking mechanism, thereby further reducing the length dimension of the air dryer and providing a more compact structural solution.

[0022] In a first aspect of the invention, as an optional embodiment, the dryer body includes two cylindrical structures arranged side by side along the Y-axis, with the partition connecting the two cylindrical structures; a plurality of reinforcing ribs are also provided between the outer walls of the two cylindrical structures. Thus, by designing a plurality of reinforcing ribs, the connection strength between the two cylindrical structures can be greatly enhanced.

[0023] In a first aspect of the invention, as an optional embodiment, the radii of both the first drying chamber and the second drying chamber gradually decrease from the open end to the closed end.

[0024] Thus, during installation, positioning can be achieved by pushing the first and second air guide components to positions with the same radius within the first or second drying chamber, which offers the advantage of convenient installation.

[0025] A second aspect of the present invention provides a method for molding an air dryer housing, comprising the following steps:

[0026] S10. A molding die is provided, the molding die including an upper die, a lower die, a first insert, a second insert, and a third insert, wherein the upper die and the lower die are closed to form a cavity; the cavity includes a first cavity adapted to form the dryer body and a second cavity adapted to form the partition portion; a through hole is provided on the first end of the first insert along the Y-axis direction, the first end of the first insert extends into the second cavity along the X-axis direction of the dryer body, one end of the second insert passes through the through hole of the first insert along the Y-axis direction of the dryer body and then passes through the second cavity, and one end of the third insert extends into the second cavity along the Z-axis direction and abuts against the first end of the first insert, so that the exhaust channel can be formed during the injection molding process;

[0027] S20. Inject the molding material into the cavity of the molding mold. After the injection molding is completed, remove the second insert, the third insert and the first insert in sequence. Then open the upper mold and take out the molded dryer body to complete the demolding.

[0028] According to an embodiment of the present invention, a method for molding an air dryer housing is provided. This method uses a dedicated mold to mold the dryer body, which is an integrally molded structure. During injection molding, in order to form Y-axis, X-axis, and Z-axis connecting holes, a through hole is provided at the first end of the first insert, extending along the Y-axis direction. The first end of the first insert extends into the second cavity along the X-axis direction of the dryer body. One end of the second insert passes through the through hole of the first insert along the Y-axis direction of the dryer body and then through the second cavity. One end of the third insert extends into the second cavity along the Z-axis direction and abuts against the first end of the first insert, thus forming the exhaust channel during injection molding. After injection molding is completed, the second insert, the third insert, and the first insert are removed sequentially, and then the upper mold is opened to complete demolding. This facilitates demolding; without the first, second, and third inserts, demolding of the injection-molded product would be impossible.

[0029] In a second aspect of the invention, as an optional embodiment, the cavity further includes a third cavity adapted to form a third protrusion and a fourth cavity adapted to form a fourth protrusion; the upper mold includes a left upper mold and a right upper mold, which are detachably connected.

[0030] The first end of the first insert passes through the third cavity and extends into the second cavity along the X-axis direction, and the second insert passes through the third cavity and the through hole of the first insert along the Y-axis direction and then through the second cavity.

[0031] After injection molding is completed, remove the second insert, the third insert, and the first insert in sequence. Then open the upper left mold and the upper right mold to remove the molded dryer body and complete the demolding.

[0032] After demolding is completed, a first sealing element is provided in the first demolding hole of the third protrusion, and a second sealing element is provided in the second demolding hole of the fourth protrusion.

[0033] Thus, the present invention forms the third protrusion and the fourth protrusion through the third cavity and the fourth cavity. The portion of the first insert located in the third cavity forms the first demolding hole, and the portion of the second insert located in the fourth cavity forms the second demolding hole. This increases the length of the first demolding hole and the second demolding hole, providing sufficient space for filling the first sealing member and the second sealing member. Attached Figure Description

[0034] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0035] Figure 1 A perspective view of the air dryer housing in an embodiment;

[0036] Figure 2 Another perspective view of the air dryer housing in this embodiment;

[0037] Figure 3 Another perspective view of the air dryer housing in the embodiment;

[0038] Figure 4 This is a cross-sectional view of the air dryer housing in an embodiment;

[0039] Figure 5 Another cross-sectional view of the air dryer housing in this embodiment;

[0040] Figure 6 This is a schematic diagram of the molding die used in the embodiment.

[0041] Figure 7 A perspective view of the air dryer in the embodiment;

[0042] Figure 8 A cross-sectional view of the air dryer in this embodiment;

[0043] Figure 9 Another cross-sectional view of the air dryer in this embodiment.

[0044] In the picture:

[0045] 100. Air dryer housing; 10. Dryer body; 101. Open end; 102. Closed end; 11. First drying chamber; 12. Second drying chamber; 13. First protrusion; 131. Air inlet; 14. Second protrusion; 141. Exhaust port; 15. Third protrusion; 151. First demolding hole; 16. Fourth protrusion; 161. Second demolding hole; 17. Fifth protrusion; 171. Mounting hole; 18. Reinforcing rib; 20. Partition; 21. Y-direction connection hole; 22. X-direction connection hole; 23. Z-direction connection hole; 30. First sealing element; 40. Second sealing element;

[0046] 200. Molding mold; 201. First cavity; 202. Second cavity; 203. Third cavity; 204. Fourth cavity; 210. Upper mold; 211. Upper left mold; 212. Upper right mold; 220. Lower mold; 230. First insert; 240. Second insert;

[0047] 300. Outer cover;

[0048] 410. First air guide component; 420. Second air guide component;

[0049] 500. Preload spring. Detailed Implementation

[0050] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0051] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0052] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0053] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0054] Example 1

[0055] Please refer to Figure 1-9 As shown, Embodiment 1 provides an air dryer housing 100, including a dryer body 10 and a partition 20; the length direction of the dryer body is defined as the X-axis, its width direction as the Y-axis, and its thickness direction as the Z-axis;

[0056] Specifically, the dryer body 10 has an accommodating space inside, and one end of the dryer body 10 in the X-axis direction forms an open end 101, while the other end in the X-axis direction forms a closed end 102.

[0057] Specifically, the partition 20 extends along the X-axis direction and is disposed in the accommodating space, dividing the accommodating space into a first drying chamber 11 and a second drying chamber 12 for accommodating the desiccant.

[0058] Specifically, a first protrusion 13 is provided on the outer side wall of the dryer body 10 extending outward along the Z-axis direction, and an air inlet 131 is formed inside the first protrusion 13; the air inlet end of the air inlet 131 is connected to the outside air, and its air outlet end is connected to the first drying chamber 11 and the second drying chamber 12 respectively.

[0059] Specifically, a second protrusion 14 is provided on the outer side wall of the dryer body 10 extending outward along the Z-axis direction, and an exhaust hole 141 is formed inside the second protrusion 14; the exhaust end of the exhaust hole 141 is connected to the outside air.

[0060] Specifically, the partition 20 is provided with an exhaust channel, which has a first air inlet, a second air inlet and an exhaust outlet. The first air inlet of the exhaust channel is connected to the first drying chamber 11, the second air inlet is connected to the second drying chamber 12, and the exhaust outlet is connected to the air inlet end of the exhaust hole 141 of the second protrusion 14.

[0061] According to an embodiment of the present invention, in practical application, the open end 101 of the air dryer housing 100 is closed by an outer cover. The first protrusion 13 is connected to the compressed air output end of a compressed air supply device through a pipe joint or pipe. Compressed air enters the first drying chamber 11 and the second drying chamber 12 through the air inlet 131 of the first protrusion 13 for drying. The two portions of compressed air after drying enter the exhaust channel through the first air inlet and the second air inlet of the exhaust channel, respectively, and then enter the exhaust port 141 of the second protrusion 14 through the exhaust port of the exhaust channel. The second protrusion 14 is then connected to the pneumatic control system through a pipe joint or pipe. Thus, the present invention divides the accommodating space into the first drying chamber 11 and the second drying chamber 12 for accommodating the desiccant through the partition 20, and provides an exhaust channel on the partition 20. Compared with the structure of a single drying chamber, under the condition of the same amount of desiccant, the length dimension of the dryer body 10 can be reduced, thus reducing the space occupied in the length direction of the air dryer housing 100. Meanwhile, by providing a first protrusion 13 with an air inlet 131 and a second protrusion 14 with an exhaust 141 in the thickness direction (i.e., the Z-axis direction) of the dryer body 10, the present invention can further reduce the length dimension of the air dryer and make the disassembly and assembly of pipe joints or pipelines more convenient.

[0062] In a preferred embodiment of the present invention, the exhaust channel includes a Y-direction connecting hole 21 extending through the partition 20 along the Y-axis, an X-direction connecting hole 22 extending along the X-axis, and a Z-direction connecting hole 23 extending along the Z-axis. The first end of the Y-direction connecting hole 21 forms a first air inlet of the exhaust channel, and its second end forms a second air inlet of the exhaust channel. The middle portion of the Y-direction connecting hole 21 communicates with the first end of the Z-direction connecting hole 23 through the X-direction connecting hole 22, and the second end of the Z-direction connecting hole 23 forms the exhaust outlet of the exhaust channel. This allows for smoother airflow and provides sufficient space for the formation of the second protrusion 14.

[0063] In a preferred embodiment of the present invention, the dryer body 10 is a one-piece molded structure;

[0064] The closed end 102 of the dryer body 10 extends outward along the X-axis and is provided with a third protrusion 15. A first demolding hole 151 is formed inside the third protrusion 15. The first demolding hole 151 communicates with the X-axis connecting hole 22, and the center lines of the first demolding hole 151 and the X-axis connecting hole 22 are located on the same X-axis.

[0065] A fourth protrusion 16 is provided on the outer wall of the dryer body 10 adjacent to the closed end 102, extending outward along the Y-axis direction. A second demolding hole 161 is formed inside the fourth protrusion 16. The second demolding hole 161 communicates with the Y-direction connecting hole 21, and the center lines of the second demolding hole 161 and the Y-direction connecting hole 21 are located on the same Y-axis.

[0066] A first sealing element 30 is provided in the first demolding hole 151 of the third protrusion 15, and a second sealing element 40 is provided in the second demolding hole 161 of the fourth protrusion 16.

[0067] Thus, the dryer body 10 of the present invention is an integrally molded structure, which can improve processing accuracy and reduce material and processing costs. In order to obtain the integrally molded dryer body 10, in order to form the intersecting Y-direction connecting holes 21 and X-direction connecting holes 22 during the injection molding process, it is necessary to set a first demolding hole 151 and a second demolding hole 161. This allows the first end of the first insert 230 to pass through the first demolding hole 151 and extend into the second cavity 202 along the X-axis direction during the subsequent injection molding process. One end of the second insert 240 can pass through the second demolding hole 161 and pass through the through hole of the first insert 230 along the Y-axis direction and then penetrate into the second cavity 202. After the injection molding is completed, the second insert 240 and the first insert 230 are removed in sequence to complete the demolding, which is beneficial for subsequent demolding. If the first demolding hole 151 and the second demolding hole 161 are not designed, it is impossible to demold the injection molded product. In addition, by providing the third protrusion 15 and the fourth protrusion 16, the present invention can increase the length of the first demolding hole 151 and the second demolding hole 161, providing sufficient accommodating space for filling the first sealing member 30 and the second sealing member 40.

[0068] Preferably, the first sealing element 30 is a first sphere, the radius of which is the same as the radius of the first demolding hole 151; the second sealing element 40 is a second sphere, the radius of which is the same as the radius of the second demolding hole 161. Thus, during installation, the first and second spheres are pressed into their corresponding first and second demolding holes 151 and 161, respectively, offering advantages such as convenient operation and good sealing effect.

[0069] In a preferred embodiment of the present invention, a fifth protrusion 17 extending outward along the Z-axis direction is provided on the partition 20, and a mounting hole 171 penetrating the partition 20 along the Z-axis direction is formed inside the fifth protrusion 17.

[0070] Thus, by providing a mounting hole 171 that penetrates the partition 20 along the Z-axis, the present invention can connect the dryer body 10 to the compressed air supply equipment along the Z-axis via a locking mechanism, thereby further reducing the length dimension of the air dryer and thus providing a more compact structure.

[0071] In a preferred embodiment of the present invention, the dryer body 10 includes two cylindrical structures arranged side by side along the Y-axis, and a partition 20 is connected between the two cylindrical structures; a plurality of reinforcing ribs 18 are also provided between the outer walls of the two cylindrical structures. Thus, by designing a plurality of reinforcing ribs 18, the connection strength between the two cylindrical structures can be greatly enhanced.

[0072] In a preferred embodiment of the present invention, the radii of both the first drying chamber and the second drying chamber gradually decrease from the open end to the closed end.

[0073] Thus, during installation, positioning can be achieved by pushing the first and second air guide components to positions with the same radius within the first or second drying chamber, which offers the advantage of convenient installation.

[0074] Example 2

[0075] Please refer to Figure 6 As shown, Embodiment 2 provides a method for molding the air dryer housing 100 of Embodiment 1, including the following steps:

[0076] S10. A molding die 200 is provided, which includes an upper die 210, a lower die 220, a first insert 230, a second insert 240, and a third insert. The upper die 210 and the lower die 220 are closed to form a cavity. The cavity includes a first cavity 201 suitable for forming a dryer body 10 and a second cavity 202 suitable for forming a partition 20. A through hole is provided on the first end of the first insert 230 along the Y-axis direction. The first end of the first insert 230 extends into the second cavity 202 along the X-axis direction of the dryer body 10. One end of the second insert 240 passes through the through hole of the first insert 230 along the Y-axis direction of the dryer body 10 and then passes through the second cavity 202. One end of the third insert extends into the second cavity 202 along the Z-axis direction and abuts against the first end of the first insert 230, so that an exhaust channel can be formed during the injection molding process.

[0077] S20. Inject the injection molding material into the cavity of the molding mold 200. After injection molding is completed, remove the second insert 240, the third insert, and the first insert 230 in sequence. Then open the upper mold and remove the molded dryer body 10 to complete the demolding.

[0078] According to the molding method of the air dryer housing 100 of the present invention, the method designs a special mold to form the dryer body 10 with an integral molding structure. In order to form the Y-axis connecting hole 21, the X-axis connecting hole 22, and the Z-axis connecting hole 23 during the injection molding process, a through hole is provided on the first end of the first insert 230 along the Y-axis direction. The first end of the first insert 230 extends into the second cavity 202 along the X-axis direction of the dryer body 10. One end of the second insert 240 extends along the Y-axis direction of the dryer body 10. After passing through the through hole of the first insert 230 in the axial direction, it passes through the second cavity 202. One end of the third insert extends into the second cavity 202 along the Z-axis direction and abuts against the first end of the first insert 230, so that an exhaust channel can be formed during the injection molding process. After the injection molding is completed, the second insert 240, the third insert, and the first insert 230 are removed in sequence, and then the upper mold 210 is opened to complete the demolding. This is conducive to demolding. If the first insert 230, the second insert 240, and the third insert are not designed, it is impossible to demold the injection molded product.

[0079] In a preferred embodiment of the present invention, the cavity further includes a third cavity 203 adapted to form a third protrusion 15 and a fourth cavity 204 adapted to form a fourth protrusion 16; the upper mold 210 includes a left upper mold 211 and a right upper mold 212, which are detachably connected.

[0080] The first end of the first insert 230 passes through the third cavity 203 along the X-axis and extends into the second cavity 202. One end of the second insert 240 passes through the third cavity 203 and the through hole of the first insert 230 along the Y-axis and then passes through the second cavity 202.

[0081] After injection molding is completed, remove the second insert 240, the third insert, and the first insert 230 in sequence. Then open the upper left mold 211 and the upper right mold 212 to remove the molded dryer body 10 and complete the demolding.

[0082] After demolding is completed, a first sealing element 30 is provided in the first demolding hole 151 of the third protrusion 15, and a second sealing element 40 is provided in the second demolding hole 161 of the fourth protrusion 16.

[0083] Thus, the present invention forms the third protrusion 15 and the fourth protrusion 16 through the third cavity 203 and the fourth cavity 204. The portion of the first insert 230 located in the third cavity 203 forms the first demolding hole 151, and the portion of the second insert 240 located in the fourth cavity 204 forms the second demolding hole 161. This increases the length of the first demolding hole 151 and the second demolding hole 161, providing sufficient space for filling the first sealing member 30 and the second sealing member 40.

[0084] Example 3

[0085] Please refer to Figure 1-9 As shown, Embodiment 3 provides an air dryer, including the air dryer housing 100, outer cover 300, and two sets of desiccant assemblies of Embodiment 1;

[0086] Specifically, the outer cover 300 is detachably connected to the opening end 101 of the air dryer housing 100; preferably, the detachable connection includes a screw-locking or snap-fit ​​connection.

[0087] Specifically, the two sets of desiccant assemblies are respectively disposed in the first drying chamber 11 and the second drying chamber 12;

[0088] The air inlet 131 of the first protrusion 13 is located between the desiccant assembly and the outer cover 300, and the first air inlet and the second air inlet of the air inlet channel are both located between the closed end 102 of the air dryer housing 100 and the desiccant assembly.

[0089] According to an embodiment of the present invention, in practical application, the open end 101 of the air dryer is closed by the outer cover 300. The first protrusion 13 is connected to the compressed air output end of the compressed air supply equipment through a pipe joint or pipe. Compressed air enters the first drying chamber 11 and the second drying chamber 12 through the air inlet 131 of the first protrusion 13 and is dried by the dryer assembly. The two portions of compressed air after drying enter the exhaust channel through the first air inlet and the second air inlet of the exhaust channel, respectively, and then enter the exhaust port 141 of the second protrusion 14 through the exhaust port of the exhaust channel. The second protrusion 14 is then connected to the pneumatic control system through a pipe joint or pipe. Thus, the present invention divides the accommodating space into the first drying chamber 11 and the second drying chamber 12 for accommodating the desiccant through the partition 20, and provides an exhaust channel on the partition 20. Compared with the structure of a single drying chamber, under the condition of the same amount of desiccant, the length dimension of the dryer body 10 can be reduced, and the space occupied in the length direction of the air dryer housing 100 can be reduced. Meanwhile, by providing a first protrusion 13 with an air inlet 131 and a second protrusion 14 with an exhaust 141 in the thickness direction (i.e., the Z-axis direction) of the dryer body 10, the present invention can further reduce the length dimension of the air dryer and make the disassembly and assembly of pipe joints or pipelines more convenient.

[0090] Specifically, the desiccant assembly includes a first air guide 410, a second air guide 420, and a desiccant. The first air guide 410 and the second air guide 420 are respectively installed in a first receiving cavity or a second receiving cavity, and the desiccant fills the space between the first air guide 410 and the second air guide 420. Preferably, both the first air guide 410 and the second air guide 420 have multiple through holes. Preferably, a filter element is also provided on the side of the first air guide 410 away from the opening end, and a filter element is also provided on the side of the second air guide 420 near the opening end.

[0091] Furthermore, the air dryer housing 100 has an opening end 101 with a preload spring receiving cavity for accommodating the preload spring; it also includes two preload springs 500 mounted side by side in the preload spring receiving cavity along the Y-axis direction, the two preload springs being used to load the two sets of desiccant assemblies with preload force respectively.

[0092] In a preferred embodiment of the present invention, the radii of the first drying chamber 11 and the second drying chamber 12 gradually decrease from the open end 101 to the closed end 102. The radius of the first air guide 410 is larger than the radius of the second air guide 420. The radius of the first air guide 410 is smaller than the maximum radius of the first drying chamber 11 or the second drying chamber 12, and the radius of the second air guide 420 is larger than the minimum radius of the first drying chamber 11 or the second drying chamber 12. Thus, during installation, positioning can be achieved by pushing the first air guide 410 and the second air guide 420 to a position with the same radius as the first drying chamber 11 or the second drying chamber 12, providing the advantage of convenient installation.

[0093] Other configurations and operations of the air dryer according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0094] Although only certain components and embodiments of this application have been illustrated and described, many modifications and alterations will be apparent to those skilled in the art without actually departing from the scope and spirit of the claims, such as variations in the size, dimensions, structure, shape and proportion of the various elements, installation arrangement, material use, color, orientation, etc.

[0095] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the embodiments of the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. An air dryer housing, comprising a dryer body and a partition; the length direction of the dryer body is defined as the X-axis, its width direction as the Y-axis, and its thickness direction as the Z-axis; characterized in that: The dryer body has an internal accommodating space, one end of the dryer body in the X-axis direction is an open end, and the other end in the X-axis direction is a closed end. The partition extends along the X-axis and is disposed in the accommodating space, dividing the accommodating space into a first drying chamber and a second drying chamber for accommodating the desiccant. A first protrusion is provided on the outer side wall of the dryer body extending outward along the Z-axis direction, and an air inlet is formed inside the first protrusion; the air inlet end of the air inlet is connected to the outside air, and its air outlet end is connected to the first drying chamber and the second drying chamber respectively. A second protrusion is provided on the outer side wall of the dryer body extending outward along the Z-axis direction, and an exhaust hole is formed inside the second protrusion; the exhaust end of the exhaust hole is in communication with the outside air. The partition is provided with an exhaust channel, which has a first air inlet, a second air inlet and an exhaust outlet. The first air inlet of the exhaust channel is connected to the first drying chamber, the second air inlet is connected to the second drying chamber, and the exhaust outlet is connected to the air inlet end of the exhaust hole of the second protrusion.

2. The air dryer housing according to claim 1, characterized in that, The exhaust channel includes a Y-direction connecting hole extending through the partition along the Y-axis, an X-direction connecting hole extending along the X-axis, and a Z-direction connecting hole extending along the Z-axis; the first end of the Y-direction connecting hole forms the first air inlet of the exhaust channel, and the second end forms the second air inlet of the exhaust channel; the middle part of the Y-direction connecting hole is connected to the first end of the Z-direction connecting hole through the X-direction connecting hole, and the second end of the Z-direction connecting hole forms the exhaust outlet of the exhaust channel.

3. The air dryer housing according to claim 2, characterized in that, The dryer body is a one-piece molded structure.

4. The air dryer housing according to claim 3, characterized in that, The closed end of the dryer body extends outward along the X-axis and is provided with a third protrusion. A first demolding hole is formed inside the third protrusion. The first demolding hole is connected to the X-axis connecting hole, and the center lines of the first demolding hole and the X-axis connecting hole are located on the same X-axis. A fourth protrusion is provided on the outer wall of the dryer body near the closed end, extending outward along the Y-axis direction. A second demolding hole is formed inside the fourth protrusion. The second demolding hole communicates with the Y-direction connecting hole, and the center lines of the second demolding hole and the Y-direction connecting hole are located on the same Y-axis. A first sealing element is provided in the first demolding hole of the third protrusion, and a second sealing element is provided in the second demolding hole of the fourth protrusion.

5. The air dryer housing according to claim 4, characterized in that, The first sealing element is a first sphere, the radius of which is the same as the radius of the first demolding hole; the second sealing element is a second sphere, the radius of which is the same as the radius of the second demolding hole.

6. The air dryer housing according to claim 1, characterized in that, The partition is provided with a fifth protrusion extending outward along the Z-axis direction, and the interior of the fifth protrusion has a mounting hole that penetrates the partition along the Z-axis direction.

7. The air dryer housing according to claim 1, characterized in that, The dryer body includes two cylindrical structures arranged side by side along the Y-axis, and the partition is connected between the two cylindrical structures; a plurality of reinforcing ribs are also provided between the outer walls of the two cylindrical structures.

8. The air dryer housing according to claim 1, characterized in that, The radii of the first drying chamber and the second drying chamber gradually decrease from the open end to the closed end.

9. A method for forming an air dryer housing according to any one of claims 1-8, characterized in that, Includes the following steps: S10. A molding die is provided, the molding die including an upper die, a lower die, a first insert, a second insert, and a third insert, wherein the upper die and the lower die are closed to form a cavity; the cavity includes a first cavity adapted to form the dryer body and a second cavity adapted to form the partition portion; a through hole is provided on the first end of the first insert along the Y-axis direction, the first end of the first insert extends into the second cavity along the X-axis direction of the dryer body, one end of the second insert passes through the through hole of the first insert along the Y-axis direction of the dryer body and then passes through the second cavity, and one end of the third insert extends into the second cavity along the Z-axis direction and abuts against the first end of the first insert, so that the exhaust channel can be formed during the injection molding process; S20. Inject the molding material into the cavity of the molding mold. After the injection molding is completed, remove the second insert, the third insert and the first insert in sequence. Then open the upper mold and take out the molded dryer body to complete the demolding.

10. The method for forming the air dryer housing according to claim 9, characterized in that, The cavity further includes a third cavity adapted to form a third protrusion and a fourth cavity adapted to form a fourth protrusion; the upper mold includes a left upper mold and a right upper mold, which are detachably connected. The first end of the first insert passes through the third cavity and extends into the second cavity along the X-axis direction, and the second insert passes through the third cavity and the through hole of the first insert along the Y-axis direction and then through the second cavity. After injection molding is completed, remove the second insert, the third insert, and the first insert in sequence. Then open the upper left mold and the upper right mold to remove the molded dryer body and complete the demolding. After demolding is completed, a first sealing element is provided in the first demolding hole of the third protrusion, and a second sealing element is provided in the second demolding hole of the fourth protrusion.

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