Adaptive pipe joint

Abstract

The adaptive pipe joint comprises a flexible bellows and a magnetic suction piece; the magnetic suction piece is located at the front end of the flexible bellows. The adaptive pipe joint adopts flexible connection of the flexible bellows, adopts suction connection of the magnetic suction piece and the magnetic suction port, automatically finds each other and is attracted by the flexible adjustment of the front, back, left, right, up and down directions of the flexible bellows, and is not required to be too accurate in connection, as long as it is within the suction range of the magnetic suction piece and the magnetic suction port, and the problem of the fixed mode joint is well solved.

Description

Technical Field

[0001] This invention relates to a pipe fitting that can adaptively adjust the suction. Background Technology

[0002] In many fields requiring drainage or ventilation, pipelines are not always connected; they are temporarily connected when needed and disconnected when not. This necessitates a temporary connector to connect when needed and disconnect when not needed. However, many connectors on current equipment are fixed. This means that if the two pipelines to be connected are not aligned, manual alignment is required before connection. If the alignment is not easily adjusted, the two pipelines may not be able to connect properly. For example, in the devices with patent numbers 201610868612.1 and 201610868768.X, the exhaust ports are fixed. These exhaust ports need to connect with the exhaust channels of the food container, which are also fixed relative to the container itself. Therefore, when connecting the two exhaust pipelines, strict alignment and precise connection are required; otherwise, the exhaust port may not be able to connect with the exhaust channels on the food container, affecting the ventilation function. Summary of the Invention

[0003] Purpose of the invention:

[0004] This application relates to an adaptive pipe fitting, the purpose of which is to solve the problem that in the past, fixed pipe connections that could not be adjusted required manual correction and alignment, and could not be adaptively aligned.

[0005] Technical solution:

[0006] An adaptive pipe fitting, the pipe fitting comprising a flexible corrugated pipe and a magnetic absorbing plate; the magnetic absorbing plate is located at the front end of the flexible corrugated pipe.

[0007] The front end of the flexible corrugated pipe is provided with a sleeve edge, and the magnetic absorbing piece is located inside the sleeve edge.

[0008] The magnetic chuck has a through hole, and the relationship between the magnetic chuck and the sleeve edge is one of the following forms:

[0009] The first type: The magnetic accumulator is fitted onto the flexible corrugated pipe and located inside the edge of the accumulator;

[0010] The second type: The magnetic clasp is located inside the sleeve edge, and the through hole of the magnetic clasp is connected to the flexible corrugated tube.

[0011] It also includes a magnetic suction port that is set at the front end of the connected pipeline during use, which can be attracted to the magnetic plate during use.

[0012] A one-way valve is provided behind the flexible bellows. The one-way valve includes a valve seat and an openable valve plate. The valve seat is provided with a valve hole, which corresponds to the tail end outlet of the flexible bellows. The valve plate is located in the valve hole, and the diameter of the valve plate is larger than the diameter of the tail end outlet of the flexible bellows. A part of the valve plate is connected to the valve seat, so that when steam is discharged, the part of the valve plate that is not connected to the valve seat can be lifted to achieve steam discharge.

[0013] It also includes mounting holes and mounting housings; the flexible bellows is located inside the mounting holes, and a gap is left between the flexible bellows and the sidewall of the mounting holes to allow the flexible bellows to move.

[0014] The mounting housing has a retaining shoulder. When in use, the mounting hole is positioned on the retaining shoulder, and a sealing ring is installed between the mounting hole and the retaining shoulder.

[0015] The valve seat is secured to the rear of the mounting hole, and the raised vertical ring on the valve seat protrudes beyond the rear end of the mounting hole. The raised vertical ring is designed to hold the shoulder after installation; or the valve seat is clamped between the mounting hole and the shoulder.

[0016] It also includes a retaining pad; the outer wall of the mounting hole is also provided with a retaining pin, which is a structure that can lock the retaining pad after rotation during use.

[0017] It also includes a silicone part, which has a through hole with a variable diameter, so that the inner wall of the rear part of the silicone part expands outward to form a stepped shoulder. The through hole at the front of the through hole with a variable diameter is a mating through hole, and the space formed by the through hole at the rear of the through hole with a variable diameter is a space to accommodate the rotation of the fixing pin. The front end face of the silicone part forms a shoulder. A notch is provided on the side wall of the mating through hole for the fixing pin to pass through, and a pad is formed on one side of the notch.

[0018] It also includes a silicone part, which has a through hole with a variable diameter, so that the inner wall of the rear part of the silicone part expands outward to form a stepped shoulder. The through hole at the front of the through hole with a variable diameter is a secondary mating hole, and the space formed by the through hole at the rear of the through hole with a variable diameter is a space to accommodate the rotation of the fixing pin. A notch is provided on the inner wall of the secondary mating hole for the fixing pin to pass through, and a retaining pad is formed on one side of the notch.

[0019] It also includes a silicone component, which has a secondary mating hole. The inner wall of the secondary mating hole has a secondary notch for the fixing pin to pass through, and a retaining pad is formed on one side of the secondary notch.

[0020] A limiting post is provided on the other side of the notch. The front end of the mounting hole is provided with a structure to facilitate control of the rotation of the mounting hole.

[0021] The structure that facilitates control of the rotation of the mounting hole is an insertion hole located at the front end of the mounting hole.

[0022] A sealing ring is fitted on the front side wall of the mounting hole.

[0023] The bottom inner wall of the rear tube of the housing is not higher than the bottom inner wall of the raised vertical ring.

[0024] The inner wall of the raised ring is flared.

[0025] Advantages and effects:

[0026] This invention provides an adaptive pipe connector that uses a flexible corrugated pipe for flexible connection and a magnetic absorbing plate and magnetic suction port for attraction. By flexibly adjusting the front, back, left, right, up, and down directions of the flexible corrugated pipe, the magnetic absorbing plate and magnetic suction port automatically find and attract each other. The connection does not need to be too precise, as long as it is within the attraction range of the magnetic absorbing plate and magnetic suction port, which effectively solves the problem of fixed connectors. Attached Figure Description

[0027] Figure 1-1 This is a schematic diagram illustrating one possible use of this application;

[0028] Figure 1-2 This is a diagram illustrating one method of connecting the flexible corrugated pipe to the exhaust pipe in this application;

[0029] Figure 1-3 This is a diagram illustrating another way in which the flexible corrugated pipe of this application is connected to the exhaust pipe;

[0030] Figure 2 This is a schematic diagram of a structural arrangement of a flexible corrugated pipe and a magnetic absorbing sheet.

[0031] Figure 3 This is a schematic diagram illustrating another method of using flexible corrugated pipes and magnetic absorbing sheets.

[0032] Figure 4 This is a schematic diagram of the exhaust principle of a type of one-way valve located behind a flexible bellows.

[0033] Figure 5 This is an end view of one type of check valve located behind a flexible bellows.

[0034] Figure 6 for Figure 4 A schematic diagram of the exhaust path based on the exhaust principle;

[0035] Figure 7 A cross-sectional schematic diagram of a form in which a flexible corrugated pipe is fitted with a mounting hole;

[0036] Figure 8 for Figure 7 Detailed annotation diagram;

[0037] Figure 9 for Figure 7 Another cross-sectional view;

[0038] Figure 10 for Figure 9 Detailed annotation diagram;

[0039] Figure 11 This is a schematic diagram of one form of silicone part;

[0040] Figure 12 This is a schematic diagram of another form of silicone part;

[0041] Figure 13 This is a schematic diagram of another form of silicone part;

[0042] Figure 14 A perspective view of a type of detachable connection between the mounting holes and the back panel;

[0043] Figure 15 This is a schematic diagram of one type of card pad;

[0044] Figure 16 This is a schematic diagram of another form of the card pad;

[0045] Figure 17 A perspective view showing another form of detachable connection between the mounting holes and the back panel;

[0046] Figure 18 A perspective view showing another form of detachable connection between the mounting holes and the back panel;

[0047] Figure 19 A schematic diagram showing one form of jack;

[0048] Figure 20 This is a schematic diagram of the column tool.

[0049] Figure 21 A partial sectional view of the mounting holes;

[0050] Figure 22 A schematic diagram showing another form of the jack;

[0051] Figure 23 Rear view of one mounting configuration for silicone parts;

[0052] Figure 24 Rear perspective view of a type of detachable connection between the mounting holes and the back panel;

[0053] Figure 25 for Figure 24 Enlarged view of the core location. Detailed Implementation

[0054] like Figure 2 and 3As shown, an adaptive pipe fitting includes a flexible bellows 12-1 (e.g., it may be made of silicone) and a magnetic absorbing plate 12-1-2. When in use, the flexible bellows 12-1 is connected to an exhaust pipe 4, and the magnetic absorbing plate 12-1-2 is located at the front end of the flexible bellows 12-1.

[0055] One embodiment of the magnetic absorbing sheet 12-1-2 being located at the front end of the flexible corrugated tube 12-1:

[0056] The front end of the flexible corrugated tube 12-1 is provided with a sleeve edge 12-1-1, and the magnetic absorbing piece 12-1-2 is located inside the sleeve edge 12-1-1 (e.g. Figure 2 , 3 As shown, the sleeve 12-1-1 can be either fully enclosed or semi-enclosed. A full enclosed sleeve completely covers the outer perimeter of the magnetic piece 12-1-2, while a semi-enclosed sleeve... Figure 2 As shown, in this case, a protective sleeve can be added around the magnetic locator 12-1-2. The magnetic locator 12-1-2 is a structure that can be attracted to the magnetic locator 12-2 (with a through hole) on the corresponding lunch box during use. That is to say, in actual use, a magnetic locator 12-2 that can cooperate with the magnetic flexible connector 12 is set on the lunch box (that is, a magnetic locator 12-2 is set at the front end of the lunch box exhaust channel; the specific setting method can adopt any existing method, for example, a sleeve edge can be set, and the magnetic locator 12-2 can be placed in the sleeve edge, which can be referred to the front end setting of the flexible corrugated tube 12-1). The magnetic clasp 12-1-2 can be used (or any other existing configuration can be adopted). The magnetic clasp 12-2 corresponds to the exhaust port on the food container. During use, the magnetic clasp 12-1-2 automatically aligns and engages with the magnetic clasp 12-2, connecting the exhaust pipe 4 to the exhaust channel inside the food container. The structure of the magnetic clasp 12-1-2 that engages with the magnetic clasp 12-2 means, for example, that the magnetic clasp is a magnet and the magnetic clasp is an iron ring; or that the magnetic clasp is an iron ring and the magnetic clasp is a magnet; or that the magnetic clasp and the magnetic clasp are magnets with opposite magnetic poles that attract each other. During use, because the corrugated pipe is a flexible, adjustable structure, it can automatically adjust its position according to the magnetic clasp it is engaging, thus achieving engagement.

[0057] Specifically: The magnetic chuck 12-1-2 has a through hole 12-1-2-1, and the relationship between the magnetic chuck 12-1-2 and the sleeve edge 12-1-1 is one of the following forms:

[0058] The first type: The magnetic clasp 12-1-2 is fitted onto the flexible corrugated tube 12-1 and located inside the rim 12-1-1 (e.g., ...). Figure 2 (The rim is turned outwards).

[0059] The second form: The magnetic accumulator 12-1-2 is located inside the sleeve 12-1-1, and the through hole 12-1-2-1 of the magnetic accumulator 12-1-2 is connected to the flexible corrugated tube 12-1 (e.g., Figure 3 (The rim is turned inward).

[0060] It also includes a magnetic port 12-2 that is set at the front end of the connected pipe (that is, the pipe that will be connected to the flexible corrugated pipe, such as the exhaust pipe of the lunch box) when in use. The magnetic port 12-2 can be attracted to the magnetic plate 12-1-2 when in use.

[0061] One installation method for the adaptive pipe fitting in this application is a fixed installation method:

[0062] like Figure 1-2 As shown, taking the devices with patent numbers 201610868612.1 and 201610868768.X as examples, a conical tube 4-5 can be set up, with the rear end of the conical tube 4-5 connected to the exhaust pipe 4 (referring to the exhaust pipe in the devices with patent numbers 201610868612.1 and 201610868768.X). Then, the rear end of the flexible corrugated pipe 12-1 is fitted over the conical part at the front end of the conical tube 4-5 to complete the connection; or as shown... Figure 1-3 As shown, a pipe 4-6 with a flange at the front end is provided, and an integral flange 12-1-F is provided at the rear end of the flexible corrugated pipe 12-1. The material of flange 12-1-F can be the same as that of the flexible corrugated pipe 12-1. Then, two flange plates 4-6-1 are used to clamp flange 12-1-F and fix it with bolts to complete the connection. The rear end of the pipe 4-6 with flange is connected to the exhaust pipe 4. Of course, any other feasible method can be used (these methods belong to a type of fixed connection). Magnetic suction plate 12-1-2 is located at the front end of flexible corrugated pipe 12-1. Reference numeral 8 in the drawings of this application represents the back plate of the device with patent numbers 201610868612.1 and 201610868768.X that needs to install the adaptive pipe joint of this application.

[0063] When using the above method, a magnetic suction port 12-2 is set at the front end of the exhaust pipe of the lunch box. Then, push the lunch box to the designated position. The magnetic suction port 12-2 and the magnetic suction piece 12-1-2 gradually come closer. When they are within the range of attraction, if the magnetic suction port 12-2 is slightly deviated from the mounting hole 35 on the back plate, the flexible corrugated tube swings and actively seeks the position of the magnetic suction port 12-2 until the magnetic suction port 12-2 and the magnetic suction piece 12-1-2 are attracted together, thus completing the connection of the exhaust pipe.

[0064] Another installation method: In this method, mounting holes are provided on the back plate 8, and the flexible bellows 12-1 is installed in the mounting holes. The flexible bellows 12-1 is connected to the exhaust pipe 4. A gap C is left between the flexible bellows 12-1 and the side wall of the mounting hole to allow the flexible bellows 12-1 to move. (A one-way valve can be installed at the rear end of the flexible bellows 12-1 to prevent the discharged steam from flowing back. This one-way valve can be a direct use of existing components or the method described later.) Here, the connection between the mounting hole and the back plate can be either fixed or detachable. The detachable connection is described later, while the fixed connection means that the mounting hole is fixed to the back plate. During installation, the flexible bellows 12-1 can be connected to the exhaust pipe 4 first (the connection method can be as described above, see...). Figure 1-2 and Figure 1-3 Then, the mounting hole is fitted over the flexible corrugated pipe 12-1. The mounting hole can be directly fixed to the back plate via a flange or similar means. Alternatively, a sub-plate can be installed in front of the back plate 8, and the mounting hole can be connected to the sub-plate. Then, the mounting hole is fitted over the flexible corrugated pipe 12-1, and the sub-plate is fixed to the back plate. Of course, any other feasible fixing method can also be used.

[0065] A one-way valve (to prevent backflow of discharged steam) is provided behind the flexible bellows 12-1. The one-way valve can be configured as follows: the one-way valve includes a valve seat 4-1-2 and an openable valve plate 4-1-1 (the valve plate is a flexible sheet, and both the valve seat and the valve plate can be made of silicone). The valve seat 4-1-2 is provided with a valve hole 4-1-2-1, which corresponds to the tail outlet 12-A-1 of the flexible bellows 12-1. The valve plate 4-1-1 is located at the valve hole. Within 4-1-2-1, and the diameter of valve plate 4-1-1 (and valve hole 4-1-2-1) is larger than the diameter of the tail outlet 12-A-1 of flexible bellows 12-1 (so that valve plate 4-1-1 can cover tail outlet 12-A-1), a portion of valve plate 4-1-1 is connected to valve seat 4-1-2 (e.g., the edges of valve plate 4-1-1 are connected to the inner wall of valve hole 4-1-2-1 of valve seat 4-1-2 at locations 4-A and 4-B respectively; see... Figure 4 and Figure 5 This allows the portion of valve plate 4-1-1 not connected to valve seat 4-1-2 to be lifted during steam discharge (e.g., Figure 4 — Figure 6 As shown in the schematic diagram, when not in use, the circular flexible plate 4-1-1 covers the tail outlet 12-A-1. However, if gas backflow occurs, the valve plate 4-1-1 will be pressed closed; that is, if... Figure 4 and Figure 6As shown, valve plate 4-1-1 has a silicone elastic film structure that is deformable. When positive gas passes through, i.e., during exhaust, steam will be discharged from the tail end outlet 12-A-1 of flexible bellows 12-1. The part of valve plate 4-1-1 not connected to the valve seat is pushed open, and the valve plate 4-1-1 bulges and deforms, forming a ventilation gap AAA between it and the valve seat. Figure 4 and Figure 6 The arrow in the middle indicates the direction of steam exhaust. Steam is transmitted through the gap. When it encounters the reverse airflow, valve plate 4-1-1 closes and locks tightly without gap. At this time, valve plate 4-1-1 covers the tail outlet 12-A-1, and the airflow cannot pass through, so that the gas does not flow back. Figure 5 The dashed line represents the tail outlet 12-A-1. That is, the silicone elastic film structure 4-1-1 is deformable; in the forward direction, gas is transmitted through the gaps via the bulge deformation, and in the reverse direction, it closes and locks tightly without gaps, preventing gas from passing through.

[0066] Another installation method for the adaptive pipe fitting in this application is a detachable installation method:

[0067] This method also includes a mounting hole 35 and a mounting housing 36. The mounting hole 35 is detachably connected to the back plate to be installed (that is, the plate at the location where it needs to be installed, such as the back plate in the device with patent numbers 201610868612.1 and 201610868768.X that needs to install the adaptive pipe connector of this application). The flexible corrugated pipe 12-1 is installed in the mounting hole, and a gap C is left between the flexible corrugated pipe 12-1 and the side wall of the mounting hole for the flexible corrugated pipe 12-1 to move. When in use, the mounting housing 36 is installed at the rear of the back plate (that is, the component used to install this application). The mounting housing 36 is provided with an annular shoulder 36-1, and the mounting hole 35 is abutted at the shoulder 36-1. A sealing ring is provided between the mounting hole 35 and the shoulder 36-1.

[0068] The valve seat is locked at the rear of the mounting hole 35 (e.g., Figure 8 The image shows the rear of the mounting hole 35, and the raised ring 4-1-2-1 on the valve seat protrudes from the rear end of the mounting hole 35. The raised ring 4-1-2-1 is designed to press against the annular shoulder 36-1 after installation (the raised ring 4-1-2-1 is made of silicone and can press against the annular shoulder (36-1) with an interference fit), thus playing a sealing role. In other words, the raised ring 4-1-2-1 at this time is equivalent to the aforementioned sealing ring.

[0069] Another form is where the valve seat is clamped between the mounting hole 35 and the annular shoulder 36-1 (in this case, the valve seat itself is equivalent to the aforementioned sealing ring).

[0070] In addition, this solution also includes a retaining pad 8-1-2, and a fixing pin 35-1 is provided on the outer wall of the mounting hole 35. The fixing pin 35-1 is designed to pass through the notch 8-1-1 during use and to lock the retaining pad 8-1-2 after rotation. It is generally advisable to lock it in the retaining groove 8-1-2-1.

[0071] Taking the devices with patent numbers 201610868612.1 and 201610868768.X as examples, the back plate 8 (reference numeral 8 in the accompanying drawings represents the back plate of the device with patent numbers 201610868612.1 and 201610868768.X that requires the installation of the adaptive pipe connector of this application) is provided with a mating through hole for mounting the mounting hole 35. The mounting housing 36 is installed on the back of the back plate 8 and the front opening of the mounting housing 36 corresponds to the mating through hole, so that the mounting hole 35 can be installed in the mounting housing 36 through the mating through hole; the mating through hole (inner edge) has a notch 8-1-1 (e.g. Figure 14 , Figure 17 , Figure 18 The number of notches is generally two or more, and the number and position of the fixing pins 35-1 correspond to the notches. Of course, one notch and one fixing pin can also be set. When there are multiple notches, all notches are evenly distributed. Evenly means that if there are two notches, the two notches are symmetrically positioned. If there are three or more notches, the angle between adjacent lines connecting the three or more notches to the center of the mating through hole is the same. Figure 14 An elastic (usually silicone) retainer 8-1-2 is formed by extending along the edge of the mating through hole 8-1, starting from one side of the notch 8-1-1. The retainer 8-1-2 (from head to tail) extends along the edge of the mating through hole 8-1, meaning that the inner wall of the retainer 8-1-2 can be aligned with the inner wall of the mating through hole 8-1, and the inner wall of the retainer 8-1-2 can be a single, integrated structure with the inner wall of the mating through hole 8-1. Figure 14 , Figure 17 , Figure 18 As shown, where Figure 18It can be a one-piece structure; or the pad 8-1-2 can be offset outwards from the inner wall of the through hole 8-1 (outwards means radially outwards from the center of the through hole 8-1). Additionally, a limiting post 8-1-3 can be set on the other side of the notch 8-1-1 to prevent incorrect rotation; the tail of the pad 8-1-2 has a limiting structure; this limiting structure can be a slot 8-1-2-1, a limiting protrusion 8-1-2-2, or both a slot 8-1-2-1 and a limiting protrusion 8-1-2-2. When both -1-2-2 are set simultaneously, the slot 8-1-2-1 and the limiting protrusion 8-1-2-2 can be set separately (not connected, meaning they are separated by a distance) to prevent over-rotation. For example, if the limiting protrusion 8-1-2-2 is set after the slot 8-1-2-1, then if the fixing pin 35-1 rotates excessively past the slot 8-1-2-1, it will also be stuck at the protrusion 8-1-2-2. Alternatively, the slot 8-1-2-1 and the limiting protrusion 8-1-2-2 can be set separately but connected. Here, "connected" means, for example... Figure 18 In the configuration where the slot 8-1-2-1 is in front and the limiting protrusion 8-1-2-2 is behind, the rear side of the slot 8-1-2-1 is the front side of the limiting protrusion 8-1-2-2, and the two sides overlap to form surface DE. The function of the limiting structure is twofold: firstly, to restrict the excessive rotation of the fixing pin 35-1, meaning that the fixing pin 35-1 stops rotating when it reaches the position of the limiting structure; secondly, the slot 8-1-2-1 can lock the fixing pin 35-1, thus providing a limiting and anti-rotation function.

[0072] The thickness direction SS of the pad 8-1-2 extends from front to back, i.e., as shown... Figure 18 The direction of the arrow shown is also the axial direction of the through hole 8-1; the "front" mentioned here refers to the side where the delivery and unloading compartment 2 is located, and the width of the pad 8-1-2 extends outward along the radial direction of the through hole 8-1.

[0073] Furthermore, as an extension, the front end of the mounting hole 35 can also be provided with a structure to facilitate control of the rotation of the mounting hole 35. (The structure to facilitate control of the rotation of the mounting hole 35 can be as follows...) Figures 18 to 21 The two symmetrical sockets 35-2 shown can be adjusted as needed, such as more than two. Generally, installing two is sufficient for normal use, but one is also possible, although operation is slightly more difficult with only one, but it does not affect the functionality. The bottom of the socket 35-2 is closed, as shown below. Figure 21 As shown, when using it, first pass the entire mounting hole 35 through the mating through hole 8-1, and then use two cylindrical tools 38 (such as...) Figure 20Insert the pin 35-1 into the socket 35-2 and press it against the mounting hole 35 so that the retaining pin 35-1 passes through the notch 8-1-1 and presses against the socket 35-2, so that the retaining pin 35-1 is located at the rear of the retaining pad 8-1-2 (that is, as shown). Figures 11 to 13 as well as Figure 15 (As shown on the left), then by rotating, the fixing pin 35-1 is inserted into the slot 8-1-2-1. At this time, the raised vertical ring 4-1-2-1 presses against the annular shoulder 36-1, with an interference fit, or the rear end of the mounting hole 35 and the annular shoulder 36-1 clamp the valve seat in the middle (or clamp another sealing ring), completing the installation of the mounting hole. At this time, the raised vertical ring 4-1-2-1 presses against the shoulder 36-1, completing the seal, and the sealing ring 40 is also clamped between the mounting hole 35 and the mating through hole 8-1; In addition, if for ease of operation, such as Figure 20 As shown, the two cylindrical tools 38 can also be connected by a horizontal handle 39. Alternatively, a strip groove 35-2A can be used to facilitate control of the rotation of the mounting hole 35, as shown. Figure 22 Similar to the slot on a self-tapping screw head, the insert 38A, adapted to the slot 35-2A, is inserted into the slot and presses against the mounting hole 35, causing the retaining pin 35-1 to pass through the notch 8-1-1. Rotation then causes the retaining pin 35-1 to engage with the slot 8-1-2-1, completing the mounting hole installation. Alternatively, for ease of operation, such as... Figure 22 As shown, the two inserts 38A can also be connected by a horizontal handle 39A.

[0074] Additionally, a sealing ring 40 can be provided between the front sidewall of the mounting hole 35 and the mating through hole 8-1. The sealing ring 40 can be pre-fitted onto the front sidewall of the mounting hole 35, or... Figure 21 As shown, a groove for fitting the sealing ring is provided on the front side wall of the mounting hole 35.

[0075] The back side mentioned above is in contrast to the front side. The front side, for example, is the side of the back panel that faces the lunchbox, which is the side that faces the lunchbox when in use. The other side is the back side. The same applies to other components.

[0076] like Figures 7 to 10As shown, one installation method for the flexible corrugated pipe 12-1 (this is not an exhaustive list, but only one of several possible methods): The rear end of the flexible corrugated pipe 12-1 has an outwardly turned (radially extended) mounting flange 12-1-3 (also made of silicone and integral with the corrugated pipe). The mounting hole 35 contains an inner clamping piece 35-01 (an annular piece with a through hole connected to the tail outlet 12-A-1 of the flexible corrugated pipe 12-1) and an outer clamping piece 35-02 (an annular piece with a through hole connected to the tail outlet 12-A-1 of the flexible corrugated pipe 12-1). The mounting flange 12-1-3 is clamped between the inner clamping piece 35-01 and the outer clamping piece 35-02. Additionally, the rear inner wall of the mounting hole 35 has a mounting groove 35-5, located behind and close to the outer clamping piece 35-2. The valve seat 4-1-2 includes a raised vertical ring 4-1-2-1 and a transverse flange ring 4-1-2-2. The raised vertical ring 4-1-2-1, the transverse flange ring 4-1-2-2, and the valve plate 4-1-1 are all made of elastic material (such as silicone, and are all integral). The transverse flange ring 4-1-2-2 is located outside the raised vertical ring 4-1-2-1 (or, in other words, the transverse flange ring 4-1-2-2 extends outward relative to the outer wall of the raised vertical ring 4-1-2-1, so that a stepped protrusion is formed between the outer wall of the raised vertical ring 4-1-2-1 and the outer wall of the transverse flange ring 4-1-2-2). In use, the transverse flange ring 4-1-2-2 is installed in the mounting groove 35-5, so that the valve seat is close to the outer clamp 35-02. Of course, the above installation method is only an example to illustrate one way of implementing the technical means, and any other feasible method can be used for installation.

[0077] The bottom inner wall 36-2A of the rear pipe 36-2 (generally referring to the part behind the shoulder 36-1, which is connected to the exhaust pipe 4) of the housing 36 shall not be higher than the bottom inner wall 4-1-2-1A of the raised ring 4-1-2-1. This is to prevent the accumulation of condensate.

[0078] The inner wall of the raised vertical ring 4-1-2-1 is flared. (That is, the inner diameter gradually increases from front to back. Here, "from front to back" refers to the direction from the valve plate towards the rear of the pipe 36-2. In other words, the front is the side closer to the delivery and unloading compartment 2, or as...) Figure 8 As shown, the side closer to the back plate 8 will form a sloping structure on the bottom inner wall 4-1-2-1A of the raised ring 4-1-2-1. This slope extends downward from the valve plate direction to the bottom inner wall 36-2A of the rear pipe 36-2 to prevent the accumulation of condensate.

[0079] Regarding the installation method described above, one of the following further methods can be adopted. The following methods are merely examples of feasible methods and are not exhaustive; any other existing and conceivable installation method can also be used:

[0080] Method 1 (e.g.) Figures 7 to 11 as well as Figure 18 , Figure 19 ,as well as Figures 23 to 25 (As shown): This method also includes a silicone part AB. During installation, a round hole ABB is made on the back plate 8, and then the pre-made silicone part AB is placed into the round hole. The silicone part AB is provided with a variable diameter through hole, that is, the inner diameter of the front through hole is smaller than the inner diameter of the rear through hole, so that the rear inner wall of the silicone part AB expands outward to form a stepped shoulder AB-1. At this time, the inner diameter of the front through hole of the variable diameter through hole is smaller than the diameter of the round hole ABB of the back plate 8. The front through hole (the part with the smaller inner diameter) of the variable diameter through hole is the mating through hole 8-1. The space formed by the rear through hole (the part with the larger inner diameter) of the variable diameter through hole is the space DA that accommodates the rotation of the fixing pin 35-1. The front end face of the silicone part AB forms a stepped shoulder AB-1, which is used to lock at the through hole ABB of the back plate 8.

[0081] At this point, the front through hole of the reducing diameter is essentially formed by the rubber ring, and the notch 8-1-1 for the fixing pin 35-1 to pass through is set on the rubber ring. A retaining pad 8-1-2 is formed on the rubber ring on one side of the notch (the rubber ring on one side of the notch can be used directly as the retaining pad 8-1-2, or an additional retaining pad 8-1-2 can be set). A limiting post 8-1-3 can be set on the other side of the notch.

[0082] During installation, bolts DAA are passed sequentially from back to front through the mounting through holes 36-3-1 of the mounting flange 36-3 of the mounting housing 36 and the edge mounting holes AB-A of the silicone part AB, and then fixed to the back plate.

[0083] Method 2 (e.g.) Figure 12 (as shown)

[0084] This method also includes a silicone part AB. During installation, a round hole is drilled on the back plate 8, which serves as a mating through hole 8-1. A notch 8-1-1 is drilled on the inner wall of the mating through hole 8-1. Then, the pre-made silicone part AB is installed aligning with the round hole. The silicone part AB has a variable diameter through hole, that is, the inner diameter of the front through hole is smaller than the inner diameter of the rear through hole, so that the inner wall of the rear part of the silicone part AB expands outward to form a stepped shoulder AB-1. The front through hole (the part with the smaller inner diameter) of the variable diameter through hole is a secondary mating hole 08-1 corresponding to the mating through hole 8-1 (the diameter of the secondary mating hole 08-1 can be the same as that of the mating through hole 8-1). Similar to 1, or slightly larger than the diameter of the through hole 8-1), the space formed by the rear through hole (the larger inner diameter part) of the variable diameter through hole is the space DA for accommodating the rotation of the fixing pin 35-1. At this time, the front through hole of the variable diameter through hole, i.e., the secondary mating hole 08-1, is essentially formed by the rubber ring surrounding it. A secondary notch 08-1-1 is provided on the inner wall of the secondary mating hole 08-1. When installed, the secondary notch 08-1-1 corresponds to the notch 8-1-1. A retaining pad 8-1-2 is formed on the rubber ring on one side of the secondary notch (the rubber ring on one side of the secondary notch can be used directly as the retaining pad 8-1-2, or a separate retaining pad 8-1-2 can be used). A limiting post 8-1-3 can be provided on the other side of the secondary notch.

[0085] During installation, bolts DAA are passed sequentially from back to front through the mounting through holes 36-3-1 of the mounting flange 36-3 of the mounting housing 36 and the edge mounting holes AB-A of the silicone part AB, and then fixed to the back plate.

[0086] Method 3 (e.g.) Figure 13 and Figure 14 (as shown)

[0087] This method also includes a silicone component AB. A round hole is drilled in the back plate 8, which serves as a mating through hole 8-1. A notch 8-1-1 is drilled on the inner wall of the mating through hole 8-1. The pre-made silicone component AB is then installed aligning with this round hole. The silicone component AB has a secondary mating hole 08-1, which is a structure corresponding to the mating through hole 8-1 (the diameter of the secondary mating hole 08-1 can be the same as or slightly larger than the diameter of the mating through hole 8-1). At this time, the secondary mating hole 08-1 is essentially formed by a rubber ring. A secondary notch 08-1-1 is set on the inner wall of the secondary mating hole 08-1. During installation, the secondary notch 08-1-1 corresponds to the notch 8-1-1. A retaining gasket 8-1-2 is formed on the rubber ring on one side of the secondary notch. A limiting post 8-1-3 can be set on the other side of the secondary notch. In this method, the mounting flange 36-3 faces forward (e.g., Figure 13 (From the center to the right) A protrusion is formed by a distance to create a raised ring L, which in turn forms a space DA to accommodate the rotation of the fixing pin 35-1.

[0088] During installation, bolts DAA are passed sequentially from back to front through the mounting through holes 36-3-1 of the mounting flange 36-3 of the mounting housing 36 and the edge mounting holes AB-A of the silicone part AB, and then fixed to the back plate.

[0089] Method 4 (e.g.) Figures 15 to 17 (as shown)

[0090] A round hole is made on the back plate 8, which serves as a through hole 8-1. A notch 8-1-1 is made on the inner wall of the through hole 8-1, and a retaining gasket 8-1-2 is installed on one side of the notch on the back of the back plate. A limiting post 8-1-3 can be set on the other side of the notch. In this method, the mounting flange 36-3 protrudes forward by a distance to form a raised ring L, so that the raised ring L forms a space DA to accommodate the rotation of the fixing pin 35-1.

[0091] During installation, bolts DAA are passed sequentially from back to front through the mounting through holes 36-3-1 of the mounting flange 36-3 of the mounting housing 36 and the edge mounting holes AB-A of the silicone part AB, and then fixed to the back plate.

[0092] In this method, the fixing method of the pad 8-1-2 and the limiting post 8-1-3 to the back plate 8 can be as follows: Figure 16 As shown in the figure, the front of the back plate 8, i.e., the right side of the figure, faces the delivery and unloading compartment 2, and the left side is the back. The pad 8-1-2 and the limiting post 8-1-3 are installed on the back of the back plate 8. As shown in the figure, the installation method of the pad 8-1-2 and the limiting post 8-1-3 is the same (of course, different installation methods can also be used). The pad 8-1-2 and the limiting post 8-1-3 have a variable diameter through hole. Starting from the rear end (i.e., the left end shown in the figure), one end of the variable diameter through hole is a large diameter hole 0B-1, which is used to accommodate the nut 0B-3-2. From the front end of the large diameter hole 0B-1 (i.e., the right end of the figure) to the front end of the entire variable diameter hole (i.e., the right end of the figure), there is a small diameter hole 0B-2. A shoulder is formed between the large diameter hole 0B-1 and the small diameter hole 0B-2. The front end of the variable diameter hole on the back plate 8 has a through hole for the mounting bolt 0B-3 to pass through.

[0093] During installation, the externally threaded mounting bolt 0B-3 extends into the reducer hole from the rear end (e.g., Figure 16(As shown from left to right), and after passing through the small-diameter hole 0B-2 and the back plate, it extends out of the back plate 8. Then, the nut 0B-3-1 is used to engage with the mounting bolt 0B-3 to fix the washer 8-1-2 and the limiting post 8-1-3. In this method, the outer surface of the nut 0B-3-2 can be provided with a cross or slotted groove similar to that on a self-tapping screw, making it easy to operate with a Phillips screwdriver or a flathead screwdriver. For example, after the mounting bolt 0B-3 is inserted into the reducing hole, the screwdriver is inserted into the large-diameter hole 0B-1, and the screwdriver... The cutting head is inserted into the Phillips or slotted groove of the nut 0B-3-2 to hold the mounting bolt 0B-3 in place, preventing it from rotating. The nut 0B-3-1 can then be tightened from the other side. Alternatively, the large-diameter hole 0B-1 can be made square, and the nut 0B-3-2 can also be made square enough to fit perfectly into the square hole 0B-1 (the mounting bolt 0B-3 remains a conventional cylindrical shape). In this case, when tightening the nut 0B-3-1, the nut 0B-3-2 will act as an anti-rotation device. Of course, the installation method is not limited to the above; any other feasible method can be used. For example, bonding or attaching a flange-like mounting plate to the gasket 8-1-2 and the limiting post 8-1-3, and then fixing this mounting plate to the back plate 8 with bolts, etc., will be used to install the gasket 8-1-2 and the limiting post 8-1-3, etc., which will not be elaborated here.

[0094] The mounting hole 35 (generally a round tube structure).

[0095] Figure 1 shows the mounting hole fixed installation method, where the mounting holes are directly fixed to the back panel (unlike the detachable type). Of course, other existing installation methods are also possible.

[0096] After installation, when using the device with patent numbers 201610868612.1 and 201610868768.X as examples, install a magnetic suction port 12-2 at the exhaust outlet of the lunch box. When the lunch box is placed in the corresponding position, the magnetic suction port 12-2 and the magnetic suction piece 12-1-2 gradually approach each other. When they are within the range of attraction, if the magnetic suction port 12-2 is slightly deviated from the mounting hole 35 on the back plate, the flexible corrugated tube in the mounting hole 35 will swing and actively search for the position of the magnetic suction port 12-2 until the magnetic suction port 12-2 and the magnetic suction piece 12-1-2 are attracted together, thus completing the connection of the exhaust pipe.

[0097] This application achieves automatic alignment and attraction by extending, retracting, and swinging a flexible corrugated tube, eliminating the tedious process of manual adjustment and effectively solving the problems that existed in the past, thus facilitating its widespread application.

Claims

1. An adaptive pipe joint, characterized by: The pipe fitting includes a flexible corrugated pipe (12-1) and a magnetic absorbing plate (12-1-2); the magnetic absorbing plate (12-1-2) is located at the front end of the flexible corrugated pipe (12-1); It also includes mounting holes (35) and mounting housing (36); The flexible corrugated pipe (12-1) is located inside the mounting hole (35), and a gap (C) is left between the flexible corrugated pipe (12-1) and the side wall of the mounting hole for the flexible corrugated pipe (12-1) to move. The mounting housing (36) is provided with a shoulder (36-1). When in use, the mounting hole (35) is placed against the shoulder (36-1), and a sealing ring is provided between the mounting hole (35) and the shoulder (36-1). A one-way valve is provided behind the flexible bellows (12-1). The one-way valve includes a valve seat (4-1-2) and an openable valve plate (4-1-1). The valve seat (4-1-2) is provided with a valve hole, which corresponds to the tail outlet (12-A-1) of the flexible bellows (12-1). The valve plate (4-1-1) is located in the valve hole, and the diameter of the valve plate (4-1-1) is larger than the diameter of the tail outlet (12-A-1) of the flexible bellows (12-1). A part of the valve plate (4-1-1) is connected to the valve seat (4-1-2), so that when steam is discharged, the part of the valve plate (4-1-1) that is not connected to the valve seat (4-1-2) can be lifted to achieve steam discharge. The valve seat is fitted into the rear of the mounting hole (35) and the raised vertical ring (4-1-2-1) on the valve seat protrudes from the rear end of the mounting hole (35). The raised vertical ring (4-1-2-1) is designed to hold the shoulder (36-1) after installation; or the valve seat is clamped between the mounting hole (35) and the shoulder (36-1). It also includes a card pad (8-1-2); The outer wall of the mounting hole (35) is also provided with a fixing pin (35-1). The fixing pin (35-1) is designed to lock the pad (8-1-2) after rotation during use. The raised ring (4-1-2-1) is made of silicone. When the fixing pin (35-1) locks the pad (8-1-2), the raised ring (4-1-2-1) presses against the annular shoulder (36-1) with an interference fit.

2. The adaptive pipe joint according to claim 1, characterized in that: The front end of the flexible corrugated pipe (12-1) is provided with a sleeve edge (12-1-1), and the magnetic absorbing piece (12-1-2) is located inside the sleeve edge (12-1-1).

3. The self-adapting pipe joint of claim 1, wherein: The magnetic chuck (12-1-2) has a through hole (12-1-2-1), and the relationship between the magnetic chuck (12-1-2) and the sleeve edge (12-1-1) is one of the following forms: The first form: The magnetic accumulator (12-1-2) is sleeved on the flexible corrugated tube (12-1) and located inside the sleeve edge (12-1-1); The second form: the magnetic accumulator (12-1-2) is located inside the sleeve edge (12-1-1), and the through hole of the magnetic accumulator (12-1-2) is connected to the flexible corrugated tube (12-1).

4. The self-adapting pipe joint of claim 1, wherein: It also includes a magnetic suction port (12-2) that is set at the front end of the connected pipeline when in use, and the magnetic suction port (12-2) can be attracted to the magnetic plate (12-1-2) when in use.

5. The self-adapting pipe joint of claim 1, wherein: It also includes a silicone part (AB), which has a variable diameter through hole, so that the inner wall of the rear part of the silicone part (AB) expands outward to form a stepped shoulder (AB-1). The front through hole of the variable diameter through hole is a mating through hole (8-1), and the space formed by the rear through hole of the variable diameter through hole is a space DA for accommodating the rotation of the fixing pin (35-1). The front end face of the silicone part (AB) forms a shoulder. A notch (8-1-1) for the fixing pin (35-1) to pass through is provided on the side wall of the mating through hole (8-1), and a retaining pad (8-1-2) is formed on one side of the notch.

6. The self-adapting pipe joint of claim 1, wherein: It also includes a silicone part (AB), which has a variable diameter through hole, so that the inner wall of the rear part of the silicone part (AB) expands outward to form a stepped shoulder (AB-1). The front through hole of the variable diameter through hole is a secondary mating hole (08-1), and the space formed by the rear through hole of the variable diameter through hole is a space (DA) to accommodate the rotation of the fixing pin (35-1). The inner wall of the secondary mating hole (08-1) is provided with a secondary notch (08-1-1) for the fixing pin (35-1) to pass through, and a retaining pad (8-1-2) is formed on one side of the secondary notch.

7. The self-adapting pipe joint of claim 1, wherein: It also includes a silicone part (AB), which has a secondary mating hole (08-1). The inner wall of the secondary mating hole (08-1) has a secondary notch (08-1-1) for the fixing pin (35-1) to pass through, and a retaining pad (8-1-2) is formed on one side of the secondary notch.

8. The self-adapting pipe joint according to any one of claims 5-7, characterized in that: A limiting post (8-1-3) is installed on the other side of the opening.

9. The self-adapting pipe joint of claim 1, wherein: The front end of the mounting hole (35) is provided with a structure that facilitates the control of the rotation of the mounting hole (35).

10. The self-adapting pipe joint of claim 1, wherein: The structure that facilitates the control of the rotation of the mounting hole (35) is the insertion hole (35-2) located at the front end of the mounting hole (35).

11. The self-adapting pipe joint of claim 9, wherein: A sealing ring (40) is fitted on the front side wall of the mounting hole (35).

12. The self-adapting pipe joint of claim 1, wherein: The bottom inner wall (36-2A) of the rear tube (36-2) of the mounting housing (36) is not higher than the bottom inner wall (4-1-2-1A) of the raised vertical ring (4-1-2-1).

13. The self-adapting pipe joint of claim 12, wherein: The inner wall of the raised vertical ring (4-1-2-1) is flared.

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