Shrinkage-proof sealing gland for inner container and casting runner of shrinkage-proof sealing gland

Abstract

The utility model provides an anti-shrinkage sealing gland for an inner container and a casting runner of the anti-shrinkage sealing gland, which relate to the technical field of casting process, and are characterized in that the sealing gland is formed by connecting a flange and a base plate through arc transition, and the flange and the base plate have the same thickness. The outer edge of the flange is provided with an inclined downward folded edge and a bolt hole; the chassis is provided with two symmetrical circular pipe connectors which are connected with the flanges through channels. The chassis is provided with H-shaped structure process ribs which are in arc transition with the channel. A pouring gate for investment casting comprises a pouring cup, a flow dividing opening, straight pouring gates and inner pouring gates, the straight pouring gates are symmetrically distributed, and the inner pouring gates are arranged on the straight pouring gates. During production, a wax mould is firstly manufactured, four sealing gland wax moulds are symmetrically distributed on a wax mould tree, half of an ingate is arranged on a channel, the other half of the ingate is arranged on a flange, and all the parts are cooperated to realize casting production of a sealing gland. Casting resources are utilized to the maximum extent, production efficiency is improved, production cost is reduced, and efficient and high-quality sealing gland casting production is achieved through cooperation of all the components.

Description

TECHNICAL FIELD

[0001] The utility model relates to foundry technology field, specifically, relate to a kind of for inner bag's anti-loose sealing gland and its casting runner. BACKGROUND

[0002] Sealing gland is an important component of water heater, its function is to install and fix the heat exchange element of water heater on the inner bag connecting flange of water heater. Sealing gland is connected with the flange welded on the inner bag by bolt, and rubber sealing gasket is arranged between sealing gland flange and inner bag connecting flange to avoid leakage of hot water or steam from sealing gland flange and inner bag connecting flange. Heat exchange element is inserted into inner bag through two interfaces on sealing gland, and is fastened on sealing gland by thread.

[0003] In mass production, the traditional sealing gland is limited by the structure and size of sealing gland, and is affected by factors such as stainless steel melt temperature and casting flow rate fluctuation, so that the feeding channel in the solidification process is not fully opened, and a small amount of loose defects still occur at the connecting parts of channel and cylindrical interface and the connecting parts of cylindrical interface and bottom disc, which affects the quality stability of product and reduces the sealing reliability of product.

[0004] Therefore, it is urgent to replace the existing sealing gland with a new technology to solve the problem of how to improve the stability of product and the sealing reliability of product. SUMMARY

[0005] In view of this, the utility model provides a kind of for inner bag's anti-loose sealing gland and its casting runner, to solve the problem of how to improve the stability of product and the sealing reliability of product.

[0006] The utility model provides a kind of for inner bag's anti-loose sealing gland and its casting runner, the sealing gland is as a whole disc structure, including:

[0007] Casting runner is provided with shunt, the shunt is rhombic, the outer side of the shunt is provided with straight gate component, the shunt is fixedly connected with straight gate component, and inner gate is arranged on the outer side of straight gate component.

[0008] Bottom disc is provided with first circular pipe interface and second circular pipe interface, and the first circular pipe interface and the second circular pipe interface are symmetrically provided with first channel and second channel.

[0009] Flange is provided with flange on the outer edge, and the flange is provided with bolt hole.

[0010] Among them, the flange and the arc-shaped transition connection of bottom disc, the flange, bottom disc and transition connection part thickness are same, the arc-shaped of the transition of flange and bottom disc corresponds with the arc-shaped of inner bag connecting flange, and the junction of inner gate and the flange and bottom disc is connected.

[0011] Further, the runner is provided with a gate cup, which is in the shape of an inverted circular truncated cone, the lower surface of the gate cup is embedded in the middle of the runner, the straight runner assembly includes a first straight runner and a second straight runner, the first straight runner and the second straight runner are respectively connected with the two side surfaces of the runner, the inner and outer sides of the first straight runner and the second straight runner are symmetrically distributed with the same size inner runner, the inner runner includes a first inner runner, a second inner runner, a third inner runner and a fourth inner runner.

[0012] Further, the first straight runner and the second straight runner are symmetrically distributed, and the included angle is 90°, the cross-sectional shape of the first straight runner and the second straight runner is rectangular, and the length-width ratio of the rectangle is 3 / 2;

[0013] The length of the inner runner is 1 / 2 of the cross-sectional length of the first straight runner and the second straight runner, the width is 2 / 3 of the cross-sectional width of the first straight runner and the second straight runner, and the thickness is 1 / 2 of the length.

[0014] Further, the height of the folded edge is the same as the thickness of the flange, and the angle with the flange plane is 60°, the upper surface of the flange is uniformly distributed with a first bolt hole, a second bolt hole, a third bolt hole, a fourth bolt hole, a fifth bolt hole and a sixth bolt hole.

[0015] Further, the first circular pipe interface and the second circular pipe interface are symmetrically distributed through the center connection line of the first bolt hole and the fourth bolt hole, the wall thickness of the first circular pipe interface and the second circular pipe interface is the same as that of the flange, and the top surface is 2mm higher than that of the flange.

[0016] Further, the first channel and the second channel are the same in structure and size, and are composed of a connecting part and a cladding part;

[0017] The width of the connecting part is equal to the inner diameter of the first circular pipe interface and the second circular pipe interface, the top surface of the connecting part is flush with the top surface of the flange, the connecting part extends to the middle part of the bottom disc, the width gradually expands and smoothly transitions to the cladding part, the cladding part is respectively connected with the outer wall of the first circular pipe interface and the second circular pipe interface, the cladding part starts from one half of the cladding first circular pipe interface and the second circular pipe interface, and smoothly transitions to gradually thin, to the angle between the top point and the center connection line of the first circular pipe interface and the second circular pipe interface is 108°, the cladding part includes a first cladding part and a second cladding part, the first cladding part and the second cladding part are symmetrically distributed with the center connection line of the first circular pipe interface and the second circular pipe interface as the symmetric axis, the thickness of the first cladding part and the second cladding part is 2 / 3 of the first circular pipe interface and the second circular pipe interface, and the top surface is flush with the connecting part.

[0018] Further, the bottom plate upper surface is provided with H-shaped structure process ribs, the H-shaped structure process ribs comprise first side ribs, second side ribs and middle ribs;

[0019] The first side ribs and the second side ribs are distributed in axial symmetry through the first circular pipe interface and the second circular pipe interface center connecting line, the first side ribs and the second side ribs length are same with the first circular pipe interface and the second circular pipe interface center distance, and the thickness is 7 / 9 of the first circular pipe interface and the second circular pipe interface wall thickness, the first side ribs and the second side ribs height are same with the first channel and the second channel, the first side ribs and the second side ribs two ends are connected with the first channel and the second channel with circular arc transition respectively.

[0020] The middle ribs are connected with the middle points of the first side ribs and the second side ribs, the middle ribs height is same with the first side ribs and the second side ribs, and the thickness is 2 / 3 of the first circular pipe interface and the second circular pipe interface wall thickness.

[0021] Further, the first inner runner and the second inner runner are connected with the third inner runner and the fourth inner runner with the bottom plate and the flange respectively.

[0022] Half of the first inner runner is connected with the second channel on the bottom plate, and half is connected with the flange, half of the second inner runner is connected with the first channel on the bottom plate, and half is connected with the flange.

[0023] Half of the third inner runner is connected with the second channel on the bottom plate, and half is connected with the flange, half of the fourth inner runner is connected with the first channel on the bottom plate, and half is connected with the flange.

[0024] Compared with the prior art, the beneficial effects of the utility model lie in:

[0025] 1. By adjusting the structure and size of the sealing gland, and simultaneously optimizing the structure and size of the casting runner, the sequential solidification of the casting is realized, the feeding capacity of the casting during the solidification process is improved, the risk of shrinkage cavity and shrinkage porosity of the casting is reduced, and the sealing reliability of the sealing gland is improved.

[0026] 2. The flange and the bottom plate are connected through arc transition, the thickness of the flange, the bottom plate and the transition connection part is same, this design reduces the stress concentration phenomenon, improves the overall strength and durability of the part. At the same time, the arc transition of the flange and the bottom plate corresponds to the arc of the inner container connecting flange, ensures the coordination and matching of the whole device in structure, and is beneficial to improve the sealing performance and working efficiency of the device.

[0027] 3, the runner is provided with a split and is rhombic, which can make the casting material flow more evenly, optimize the flow path of the material in the casting process, and help improve the precision and quality of the casting. The half of the inner runner is arranged in the flange and the half is arranged in the channel, which further guides the casting material to flow accurately into the specified position, reduces the generation of casting defects, and improves the forming rate of the product. BRIEF DESCRIPTION OF DRAWINGS

[0028] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are for purposes of illustration only and are not considered a limitation of the present application. Moreover, like reference numerals are used to designate like parts throughout the specification and drawings. In the drawings:

[0029] Figure 1 Structure diagram of the sealing gland provided by the embodiment of the present application;

[0030] Figure 2 Structure diagram of the wax mold tree of the sealing gland provided by the embodiment of the present application;

[0031] Figure 3 Structure diagram of the runner of the sealing gland provided by the embodiment of the present application;

[0032] Figure 4 Front view diagram of the runner of the sealing gland provided by the embodiment of the present application;

[0033] Figure 5 Sectional view of the sealing gland provided by the embodiment of the present application;

[0034] Figure 6 Front view diagram of the sealing gland provided by the embodiment of the present application;

[0035] Figure 7 Position diagram of the inner gate of the runner of the sealing gland provided by the embodiment of the present application.

[0036] In the drawings: 1-flange; 2-bottom disc; 3-flange; 5-first circular pipe interface; 6-second circular pipe interface; 7-first channel; 7a-connection part; 7b-first cladding part; 7c-second cladding part; 8-second channel; 9-first side rib; 10-second side rib; 11-middle rib; H1-first bolt hole; H2-second bolt hole; H3-third bolt hole; H4-fourth bolt hole; H5-fifth bolt hole; H6-sixth bolt hole; G1-gate cup; G2-split; G3-first straight runner; G4-second straight runner; G5-first inner runner; G6-second inner runner; G7-third inner runner; G8-fourth inner runner. DETAILED DESCRIPTION

[0037] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0038] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0040] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] Referring to Figure 1 and Figure 2 The utility model provides a kind of anti-loosening sealing gland for inner bag and its casting runner, the sealing gland is overall disc structure, comprising: casting runner, it is provided with shunt G2, shunt G2 is diamond, the outer side of shunt G2 is provided with direct sprue assembly, shunt G2 is fixedly connected with direct sprue assembly, and the outer side of direct sprue assembly is provided with inner gate;

[0042] The bottom disc 2 is provided with a first circular pipe interface 5 and a second circular pipe interface 6, and the first circular pipe interface 5 and the second circular pipe interface 6 are symmetrically provided with a first channel 7 and a second channel 8.

[0043] The flange 1 is provided with a folded edge 3 on the outer edge, and the flange 1 is provided with a bolt hole.

[0044] The flange 1 and the bottom disc 2 are connected in an arc transition, the thickness of the flange 1, the bottom disc 2 and the transition connection part 7a is the same, the arc transition of the flange 1 and the bottom disc 2 corresponds to the arc of the inner pot connecting flange, and the inner gate is connected at the junction of the flange 1 and the bottom disc 2.

[0045] As can be seen from the above, the melt flows into the rhombic distribution port G2 through the straight gate assembly, is evenly distributed, then enters the straight gate assembly, and then flows to the junction of the flange 1 and the bottom disc 2 through the inner gate on the outer side of the straight gate assembly, and then flows through the first channel 7 and the second channel 8 corresponding to the first circular pipe interface 5 and the second circular pipe interface 6 on the bottom disc 2 to realize subsequent flow.

[0046] Specifically, the distribution port G2 is provided with a gate cup G1, the gate cup G1 is in the shape of an inverted circular truncated cone, the lower surface of the gate cup G1 is embedded in the middle of the distribution port G2, the straight gate assembly includes a first straight gate G3 and a second straight gate G4, the first straight gate G3 and the second straight gate G4 are respectively connected with the two side surfaces of the distribution port G2, and the inner and outer side surfaces of the first straight gate G3 and the second straight gate G4 are symmetrically distributed with inner gates of the same size, and the inner gates include a first inner gate G5, a second inner gate G6, a third inner gate G7 and a fourth inner gate G8.

[0047] It can be understood that the distribution port G2 distributes the melt to the first straight gate G3 and the second straight gate G4 connected therewith, ensures the flow balance of the melt in the flow channel, and thus provides stable feeding for the subsequent casting process. The inner and outer side surfaces of the first straight gate G3 and the second straight gate G4 are symmetrically distributed with inner gates of the same size, which provides a path for the melt to enter the sealed gland shell mold, enables the melt to more uniformly and stably fill the shell mold, reduces product defects caused by uneven casting, and improves product quality.

[0048] Referring to FIGS. 1, 2 and 3, Figure 3 and Figure 4 As shown in the figures, the first straight gate G3 and the second straight gate G4 are symmetrically distributed, and the included angle is 90°, the cross-sectional shape of the first straight gate G3 and the second straight gate G4 is rectangular, and the length-width ratio of the rectangle is 3 / 2.

[0049] The length of the inner gate is 1 / 2 of the cross-sectional length of the first straight gate G3 and the second straight gate G4, the width of the inner gate is 2 / 3 of the cross-sectional width of the first straight gate G3 and the second straight gate G4, and the thickness of the inner gate is 1 / 2 of the length of the inner gate.

[0050] It can be understood that the cross-sectional shape of the first straight gate G3 and the second straight gate G4 is rectangular and the length-width ratio is 3 / 2, which optimizes the flow field in the straight gate while ensuring a certain melt flow, reduces the resistance of the casting material in the flow process, is conducive to controlling the casting speed and stably filling the melt into the shell mold, and can better control the flow rate and pressure distribution of the melt, and improve the product forming quality.

[0051] See Figure 1 and Figure 5 As shown, the height of the flange 3 is the same as the thickness of the flange 1, and the angle between the flange 3 and the plane of the flange 1 is 60°. The upper surface of the flange 1 is evenly distributed with the first bolt hole H1, the second bolt hole H2, the third bolt hole H3, the fourth bolt hole H4, the fifth bolt hole H5 and the sixth bolt hole H6.

[0052] Specifically, the first round pipe interface 5 and the second round pipe interface 6 are symmetrically distributed with the center connecting line of the first bolt hole H1 and the fourth bolt hole H4 as the axis of symmetry. The wall thickness of the first round pipe interface 5 and the second round pipe interface 6 is the same as that of the flange 1, and the top surface is 2mm higher than the top surface of the flange 1.

[0053] See Figure 1 and Figure 6 As shown, the first channel 7 and the second channel 8 have the same structure and size, both consisting of a connecting part 7a and a covering part;

[0054] The width of the connecting part 7a is equal to the inner diameter of the first round pipe interface 5 and the second round pipe interface 6. The top surface of the connecting part 7a is flush with the top surface of the flange 1. The connecting part 7a extends towards the middle of the chassis 2, gradually increasing in width and smoothly transitioning to the covering part. The covering part is connected to the outer wall of the first round pipe interface 5 and the second round pipe interface 6 respectively. The covering part starts from the halfway point of the covering of the first round pipe interface 5 and the second round pipe interface 6, and gradually thins out smoothly until it ends when the angle between the apex of the two parts and the line connecting the center of the first round pipe interface 5 and the center of the second round pipe interface 6 is 108°. The covering part includes a first covering part 7b and a second covering part 7c. The first covering part 7b and the second covering part 7c are symmetrically distributed with the center connecting line of the first round pipe interface 5 and the second round pipe interface 6 as the axis of symmetry. The thickness of the first covering part 7b and the second covering part 7c is 2 / 3 of the thickness of the first round pipe interface 5 and the second round pipe interface 6, and their top surfaces are flush with the connecting part 7a.

[0055] Understandably, the width of the connecting part 7a is equal to the inner diameter of the circular pipe interface and its top surface is flush with the flange 1, ensuring a smooth transition of the casting material. As it extends towards the center of the chassis 2, its width gradually increases and smoothly transitions to the covering part, which can guide the melt to fill the shell cavity evenly and stably. The covering part wraps around and connects from halfway to the circular pipe interface, and gradually thins until it ends at an angle of 108° with the line connecting to the center of the circle. This not only provides support and reinforcement for the circular pipe structure but also reduces stress concentration. Its symmetrical distribution and thickness of 2 / 3 of the circular pipe interface, with its top surface flush with the connecting part 7a, ensure balanced mechanical properties and optimize material flow.

[0056] Specifically, the upper surface of the chassis 2 is provided with H-shaped structural process ribs, which include a first side rib 9, a second side rib 10 and a middle rib 11.

[0057] The first side rib 9 and the second side rib 10 are distributed in axial symmetry through the center connecting line of the first circular pipe interface 5 and the second circular pipe interface 6, the length of the first side rib 9 and the second side rib 10 is the same as the center distance of the first circular pipe interface 5 and the second circular pipe interface 6, and the thickness is 7 / 9 of the wall thickness of the first circular pipe interface 5 and the second circular pipe interface 6, and the height of the first side rib 9 and the second side rib 10 is the same as the first channel 7 and the second channel 8; the two ends of the first side rib 9 and the second side rib 10 are connected with the first channel 7 and the second channel 8 respectively through a circular arc transition;

[0058] The middle rib 11 is connected with the midpoint of the first side rib 9 and the second side rib 10, the height of the middle rib 11 is the same as the first side rib 9 and the second side rib 10, and the thickness is 2 / 3 of the wall thickness of the first circular pipe interface 5 and the second circular pipe interface 6.

[0059] It can be understood that the H-shaped structure process rib is arranged on the upper surface of the bottom disc 2, wherein the first side rib 9 and the second side rib 10 are distributed in axial symmetry through the center connecting line of the first and second circular pipe interfaces, the length is the same as the center distance, the thickness is 7 / 9 of the wall thickness of the circular pipe interface, the height is consistent with the channel, and the two ends are connected with the channel through a circular arc transition; and the middle rib 11 connects the midpoints of the first and second side ribs, the height is the same, and the thickness is 2 / 3 of the wall thickness of the circular pipe interface, which not only improves the rigidity and stability of the overall structure, improves the carrying capacity of the bottom disc 2, but also improves the smooth filling of the melt into the cavity of the shell mold, effectively establishes the feeding channel, and reduces the deformation and shrinkage risk in the solidification process.

[0060] Referring to Figure 7 As shown in the figure, the first inner gate G5 and the second inner gate G6 are connected with the bottom disc 2 and the flange 1 respectively, and the third inner gate G7 and the fourth inner gate G8 are connected with the bottom disc 2 and the flange 1 respectively.

[0061] Half of the first inner gate G5 is connected with the second channel 8 on the bottom disc, and the other half is connected with the flange 1, and half of the second inner gate G6 is connected with the first channel 7 on the bottom disc, and the other half is connected with the flange 1.

[0062] Half of the third inner gate G7 is connected with the second channel 8 on the bottom disc, and the other half is connected with the flange 1, and half of the fourth inner gate G8 is connected with the first channel 7 on the bottom disc, and the other half is connected with the flange 1.

[0063] It can be understood that the first inner gate G5, the second inner gate G6, the third inner gate G7 and the fourth inner gate G8 are connected with the bottom disc 2 and the flange 1 in this way, so that the melt can flow uniformly from both directions into the combined area of the bottom disc 2 and the flange 1, effectively improving the uniformity and stability of the melt filling, improving the feeding channel of the casting system, realizing the sequential solidification of the product, effectively reducing the internal shrinkage risk of the product, and ensuring the product quality.

[0064] During production, first, the wax mold of the sealing gland and the runner is made, and then the wax mold of the sealing gland and the wax mold of the runner are bonded into a tree. Referring to Figure 2The sealing gland wax mold tree structure diagram is shown. Four sealing gland wax molds are symmetrically distributed on a wax mold tree. After the wax mold tree is completed, sand hanging, mold casting, and other processes are performed to obtain a sealing gland casting.

[0065] The beneficial effects of the present application are as follows: by adjusting the structure and size of the sealing gland, and simultaneously optimizing the structure and size of the pouring channel, the sequential solidification of the casting is achieved, the feeding capacity of the casting during solidification is improved, the risk of shrinkage cavity and shrinkage porosity of the casting is reduced, and the sealing reliability of the sealing gland is improved.

[0066] Embodiment 1

[0067] In use, the rubber sealing gasket and the sealing gland are sequentially placed on the inner container connecting flange, the bolt holes are aligned, the bolts are passed through, and the bolts are tightened. The heat exchange element is inserted into the round pipe interface on the sealing gland and is fixed on the sealing gland through threads.

[0068] Those skilled in the art can understand that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace some technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A shrinkage-proof sealing gland for a liner and a casting runner thereof, the sealing gland being in a whole disc structure, characterized in that, The utility model relates to a casting runner, a bottom disc, a flange and an inner nozzle, and a method for manufacturing the same. The casting runner is provided with a runner gate in a rhombic shape, and the outer side of the runner gate is provided with a straight runner assembly, the runner gate is fixedly connected with the straight runner assembly, and the outer side of the straight runner assembly is provided with an inner nozzle. The bottom disc is provided with a first circular pipe interface and a second circular pipe interface, and the first circular pipe interface and the second circular pipe interface are symmetrically provided with a first channel and a second channel. The flange is provided with a folded edge on the outer edge thereof, the height of the folded edge is the same as the thickness of the flange, and the angle between the folded edge and the plane of the flange is 60°. The flange and the bottom disc are connected in an arc shape, the thickness of the flange, the bottom disc and the transition connection part is the same, the arc shape of the transition of the flange and the bottom disc corresponds to the arc shape of the flange connected with the inner container, and the inner nozzle is connected with the junction of the flange and the bottom disc.

2. The anti-settling sealing gland for the inner liner and its casting runner according to claim 1, characterized in that, The runner gate is provided with a sprue cup in an inverted conical frustum shape, the lower surface of the sprue cup is embedded into the middle part of the runner gate, the straight runner assembly comprises a first straight runner and a second straight runner, the first straight runner and the second straight runner are respectively connected with the two side surfaces of the runner gate, the inner and outer two side surfaces of the first straight runner and the second straight runner are symmetrically provided with inner nozzles of the same size, and the inner nozzles comprise a first inner nozzle, a second inner nozzle, a third inner nozzle and a fourth inner nozzle.

3. The anti-settling sealing gland for the inner liner and its casting runner according to claim 2, characterized in that, The first straight runner and the second straight runner are symmetrically distributed, and the included angle is 90°. The cross-sectional shape of the first straight runner and the second straight runner is a rectangle, and the length-width ratio of the rectangle is 3 / 2.

4. The anti-settling sealing gland for the inner liner and its casting runner according to claim 1, characterized in that, The length of the inner nozzle is 1 / 2 of the cross-sectional length of the first straight runner and the second straight runner, the width of the inner nozzle is 2 / 3 of the cross-sectional width of the first straight runner and the second straight runner, and the thickness of the inner nozzle is 1 / 2 of the length thereof.

5. The anti-settling sealing gland for the inner liner and its casting runner according to claim 1, characterized in that, The upper surface of the flange is uniformly distributed with a first bolt hole, a second bolt hole, a third bolt hole, a fourth bolt hole, a fifth bolt hole and a sixth bolt hole.

6. The anti-settling sealing gland for the inner liner and its casting runner according to claim 1, characterized in that, The first circular pipe interface and the second circular pipe interface are symmetrically distributed about the center connecting line of the first bolt hole and the fourth bolt hole as the axis of symmetry, the wall thickness of the first circular pipe interface and the second circular pipe interface is the same as that of the flange, and the top surface of the first circular pipe interface and the second circular pipe interface is 2mm higher than the top surface of the flange. The first channel and the second channel are the same in structure and size and are composed of a connecting part and a cladding part. The width of the connecting part is equal to the inner diameter of the first circular pipe interface and the second circular pipe interface, the top surface of the connecting part is flush with the top surface of the flange, the connecting part extends to the middle part of the bottom disc, the width gradually expands and smoothly transitions to the cladding part, the cladding part is respectively connected with the outer wall of the first circular pipe interface and the second circular pipe interface, the cladding part starts from the position of one half of the first circular pipe interface and the second circular pipe interface, smoothly transitions and gradually thins, and ends when the included angle between the top vertex and the center line of the first circular pipe interface and the second circular pipe interface is 108°, the cladding part comprises a first cladding part and a second cladding part, the first cladding part and the second cladding part are symmetrically distributed about the center connecting line of the first circular pipe interface and the second circular pipe interface as the axis of symmetry, the thickness of the first cladding part and the second cladding part is 2 / 3 of the first circular pipe interface and the second circular pipe interface, and the top surface of the first cladding part and the second cladding part is flush with the connecting part.

7. The anti-settling sealing gland for the inner liner and its casting runner of claim 1, wherein, The bottom plate upper surface is provided with H-shaped structure process rib, the H-shaped structure process rib includes first side rib, second side rib and middle rib; The first side rib and the second side rib are distributed symmetrically with the first circular pipe interface and the second circular pipe interface center connecting line as the axis, the length of the first side rib and the second side rib is same with the center distance of the first circular pipe interface and the second circular pipe interface, and the thickness is 7 / 9 of the wall thickness of the first circular pipe interface and the second circular pipe interface, the height of the first side rib and the second side rib is same with the first channel and the second channel, the both ends of the first side rib and the second side rib are connected with the first channel and the second channel respectively with circular arc transition; The middle rib is connected with the midpoint of the first side rib and the second side rib, the height of the middle rib is same with the first side rib and the second side rib, and the thickness is 2 / 3 of the wall thickness of the first circular pipe interface and the second circular pipe interface.

8. The anti-settling sealing gland for the inner liner and its casting runner according to claim 2, characterized in that, The first inner gate and the second inner gate are connected with the third inner gate and the fourth inner gate respectively with the bottom plate and the flange; Half of the first inner gate is connected with the second channel on the bottom plate, and the other half is connected with the flange, half of the second inner gate is connected with the first channel on the bottom plate, and the other half is connected with the flange; Half of the third inner gate is connected with the second channel on the bottom plate, and the other half is connected with the flange, half of the fourth inner gate is connected with the first channel on the bottom plate, and the other half is connected with the flange.

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