阅读说明：本技术 内胆涂搪工装 (Inner container enameling tool ) 是由 盛保敬 张其中 苏进 孙强 尚山峰 于 2020-03-16 设计创作，主要内容包括：本发明属于涂搪加工技术领域,具体涉及一种内胆涂搪工装。本发明旨在解决现有内胆涂搪时,釉浆进入内胆端部的螺纹孔内,影响螺栓连接的问题。本发明的内胆涂搪工装,包括连接环和支撑台,通过连接环与内胆端口的台阶面抵接,并在支撑台设置与连接环连通管的容纳空腔,使得内胆内部多余的釉浆通过连接环进入到容纳空腔内,避免釉浆进入胆口法兰的螺纹孔而影响螺栓与螺纹孔的连接；对于安装电热管的胆口法兰,避免釉浆进入螺纹孔而影响电热管的加热性能。(The invention belongs to the technical field of enameling processing, and particularly relates to an inner container enameling tool. The invention aims to solve the problem that when the existing liner is enameled, glaze slip enters a threaded hole at the end part of the liner to influence bolt connection. The lining tool for the inner container comprises a connecting ring and a supporting platform, wherein the connecting ring is abutted against the step surface of the port of the inner container, and the supporting platform is provided with an accommodating cavity communicated with the connecting ring, so that redundant glaze slurry in the inner container enters the accommodating cavity through the connecting ring, and the phenomenon that the connection of a bolt and a threaded hole is influenced because the glaze slurry enters the threaded hole of a flange of the port of the inner container is avoided; for the liner opening flange for mounting the electric heating tube, the glaze slip is prevented from entering the threaded hole to influence the heating performance of the electric heating tube.)

1. The utility model provides a frock is warded off to inner bag which characterized in that includes: the supporting platform is arranged at the bottom of the connecting ring;

the top end of the connecting ring is used for being abutted against the step end face of the port of the inner container, and the projection of the connecting ring on the port of the inner container can accommodate the port of the inner container;

the support table has an accommodating cavity in communication with the connection ring.

2. The liner enameling tool according to claim 1, wherein the outer side wall of the connecting ring is attached to the side face of the step of the port of the liner.

3. The liner enameling tool according to claim 1, wherein the support table is provided with at least two bosses which are arranged at intervals along the circumferential direction of the connecting ring;

the boss is provided with a flow guide hole communicated with the accommodating cavity.

4. The liner enameling tool according to claim 3, wherein one flow guide hole is formed in each boss, and each flow guide hole is an arc-shaped hole extending along the circumferential direction of the connecting ring.

5. The liner enameling tool according to claim 3, wherein a plurality of flow guide holes are formed in each boss and are arranged at intervals along the circumferential direction of the connecting ring.

6. The liner enameling tool according to any one of claims 1 to 5, wherein an overflow opening is formed in the support platform and is communicated with the accommodating cavity.

7. The liner enameling tool according to claim 6, wherein the number of the overflow openings is multiple, and the overflow openings are arranged at intervals along the circumferential direction of the connecting ring.

8. The liner enameling tool according to any one of claims 1 to 5, further comprising a base, wherein the base is connected with the bottom end of the support platform.

9. The liner enameling tool according to claim 8, wherein the support table is welded to the connecting ring and the base respectively.

10. The liner enameling tool according to claim 8, wherein the support platform comprises a support ring connected with the base and a support flat plate arranged at the top end of the support ring, and the top surface of the base, the support ring and the support flat plate are enclosed to form the accommodating cavity;

the support flat plate is provided with a through hole for communicating the accommodating cavity with the connecting ring.

Technical Field

The invention belongs to the technical field of enameling processing, and particularly relates to an inner container enameling tool.

Background

A water heater has been widely used in daily life as an electric appliance in which the temperature of cold water rises to become hot water within a certain period of time. The water heater generally comprises an inner container which is used for storing water and has the characteristics of heat preservation, pressure resistance, rust resistance, water seepage resistance and the like, and the inner container of the existing water heater comprises a stainless steel inner container, an enamel inner container, a titanium inner container and the like.

Wherein, the enamel liner is formed by coating and burning inorganic glass enamel on the inner surface of the metal liner. During the processing of the enamel liner, glaze slip is generally coated in the metal liner, and then the metal liner is sintered to form stable enamel. In the prior art, when the inner container of the water heater is enameled, a metal inner container is generally placed on a workbench, and the top end of the metal inner container is coated with glaze slurry. However, the glaze slip flows into the threaded hole of the flange plate at the end of the inner container along the inner surface of the inner container, and the glaze slip adheres to the threaded surface, which affects the reliability of the connection between the bolt and the threaded hole. On the flange plate equipped with electric heating tube, the glaze slurry can make the bolt and at least partial insulation of screw hole wall to affect the electric conductivity of electric heating tube connected with bolt, so that it can affect the heating performance of water heater.

Accordingly, there is a need in the art for a new liner enameling tool that solves the above problems.

Disclosure of Invention

The problem that when the existing inner container is enameled, glaze slip enters the threaded hole in the end of the inner container to affect the connection of the bolt, so that the bolt and the wall of the threaded hole are at least partially insulated to affect the conductivity of an electric heating tube electrically connected with the bolt, and the heating performance of a water heater is affected is solved.

The invention provides a liner enameling tool, which comprises: the supporting platform is arranged at the bottom of the connecting ring; the top end of the connecting ring is used for being abutted against the step end face of the port of the inner container, and the projection of the connecting ring on the port of the inner container can accommodate the port of the inner container; the support table has an accommodating cavity in communication with the connection ring.

In the preferable technical scheme of the liner enameling tool, the outer side wall of the connecting ring is attached to the side face of the step of the port of the liner.

In the preferable technical scheme of the liner enameling tool, the support table is provided with at least two bosses which are arranged at intervals along the circumferential direction of the connecting ring; the boss is provided with a flow guide hole communicated with the accommodating cavity.

In the preferable technical scheme of the liner enameling tool, each boss is provided with one flow guide hole, and each flow guide hole is an arc-shaped hole extending along the circumferential direction of the connecting ring.

In the preferable technical scheme of the liner enameling tool, each boss is provided with a plurality of flow guide holes, and the plurality of flow guide holes are arranged at intervals along the circumferential direction of the connecting ring.

In the preferable technical scheme of the liner enameling tool, an overflow opening is formed in the support platform and communicated with the accommodating cavity.

In the preferable technical scheme of the liner enameling tool, the number of the overflow openings is multiple, and the overflow openings are arranged at intervals along the circumferential direction of the connecting ring.

In the preferable technical scheme of the liner enameling tool, the liner enameling tool further comprises a base, and the base is connected with the bottom end of the supporting table.

In the preferable technical scheme of the liner enameling tool, the support table is welded with the connecting ring and the base respectively.

In the preferable technical scheme of the liner enameling tool, the support table comprises a support ring connected with the base and a support flat plate arranged at the top end of the support ring, and the top surface of the base, the support ring and the support flat plate are enclosed to form the accommodating cavity; the support flat plate is provided with a through hole for communicating the accommodating cavity with the connecting ring.

The inner container enameling tool is abutted to the step surface of the port of the inner container through the connecting ring, and the supporting table is provided with the accommodating cavity communicated with the connecting ring, so that redundant glaze slurry in the inner container enters the accommodating cavity through the connecting ring, and the phenomenon that the connection between a bolt and a threaded hole is influenced because the glaze slurry enters the threaded hole of the flange of the port of the inner container is avoided; for the liner opening flange for mounting the electric heating tube, the glaze slip is prevented from entering the threaded hole to influence the heating performance of the electric heating tube.

Drawings

The preferred embodiment of the liner enameling tool of the invention is described below with reference to the attached drawings and the inner liner of a small kitchen appliance. The attached drawings are as follows:

FIG. 1 is a schematic structural diagram of an inner container of a conventional small kitchen appliance;

FIG. 2 is a front view of the inner container enameling tool of the invention;

FIG. 3 is a top view of the inner container enameling tool of the invention;

FIG. 4 is a schematic view of the inner container enameling tool of the invention in use;

FIG. 5 is a cross-sectional view of a support table of the lining tool of the present invention.

In the drawings:

1. an inner container;

11. a liner opening flange;

111. a threaded hole;

112. a central bore;

113. a step;

2. a connecting ring;

21. a first central channel;

3. a support table;

31. a boss;

311. a flow guide hole;

32. an overflow opening;

33. a support ring;

331. a second central channel;

34. supporting the flat plate;

341. a via hole;

35. a diversion trench;

4. a base;

41. a weight-reducing opening.

Detailed Description

First, it should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications. For example, although the enamelled inner container tool is described in connection with a small kitchen ware inner container, the tool is not limited to the small kitchen ware inner container, and other enamel inner containers with water heaters can be enamelled by using the inner container enamelling tool of the invention.

Next, it should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", and the like are based on the direction or positional relationship shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or member must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The small kitchen appliance is widely applied due to small volume, quick heating and convenient installation and use. Generally, a small kitchen treasure is installed at a hand washing table of a kitchen or a toilet, can meet the supply of small-water-volume hot water, and saves electricity compared with a water heater. Referring to fig. 1, fig. 1 is a schematic structural view of an inner container of a conventional small kitchen appliance. One end of the inner container 1 of the small kitchen appliance is provided with a container opening flange 11 for installing an electric heating pipe. The liner opening flange 11 is provided with a circular central hole 112, and an annular step 113 is formed outside the central hole 112; the liner opening flange 11 is provided with a plurality of threaded holes 111 arranged along the circumferential direction of a central hole 112 at intervals and used for being connected with a flange of the electric heating pipe.

When the liner 1 is enameled, one end of the liner 1, which is provided with the liner opening flange 11, is generally placed on a workbench, and glaze slurry is coated on the other end of the liner 1, flows to the threaded hole 111 of the liner opening flange 11 along the inner wall of the liner, and adheres to the threaded surface of the threaded hole 111, so that the reliability of bolt connection is affected. The glaze slip flowing into the screw hole 111 insulates the bolt from the inner wall of the hole, and affects the conductivity of the electric heating tube electrically connected to the bolt, thereby affecting the heating performance of the water heater.

In view of the above, the present invention provides an inner container enameling tool, which includes a connecting ring and a supporting platform, wherein the supporting platform has an accommodating cavity; the connecting ring is used for being abutted against the step surface of the port of the liner, so that glaze slurry in the liner enters the accommodating cavity through the connecting ring, and the problem that the connection between the bolt and the threaded hole is influenced because the glaze slurry enters the threaded hole of the liner port flange is avoided; for the liner opening flange for mounting the electric heating tube, the phenomenon that glaze slip enters the threaded hole to influence the electric conduction performance of the inner wall of the threaded hole and the bolt is avoided.

The preferable technical scheme of the liner enameling tool is explained by combining the small kitchen treasure liner.

First, referring to fig. 2 and 3, fig. 2 is a front view of the inner container enameling tool of the present invention, and fig. 3 is a plan view of the inner container enameling tool of the present invention.

As shown in fig. 2 and 3, the inner container enameling tool of the invention comprises: a connecting ring 2 and a support platform 3 arranged at the bottom of the connecting ring 2; the top end of the connecting ring 2 is used for abutting against the end face of the step 113 at the port of the liner 1, and the projection of the connecting ring 2 at the port of the liner can accommodate the port of the liner; the support table 3 has a receiving cavity communicating with the connection ring 2.

In particular, the connection ring 2 may be a circular ring structure having a first central passage 21. The top end of the connecting ring 2 is used for abutting against the end surface of the step 113 at the end part of the inner container 1, so that the glaze slurry in the inner container 1 flows downwards through the first central channel 21 and cannot flow into the threaded hole 111.

The projection of the connecting ring 2 on the inner container port can accommodate the inner container port, i.e. the projection of the inner container port on the end face of the connecting ring 2 is entirely located on the connectionInside the inner side wall of the ring 2. With reference to fig. 4, fig. 4 is a schematic view of the inner container enameling tool of the present invention in use. When the connecting ring 2 and the port of the inner container are both in circular ring structures, the inner diameter L of the connecting ring 2₁Is greater than the diameter L of the port of the inner container₂Therefore, the glaze slurry in the inner container 1 directly enters the first central channel 21 of the connecting ring 2 through the port, and the end surface of the top end of the connecting ring 2 does not influence the downward flow of the glaze slurry.

It should be noted that, in the embodiment of the present invention, the term "top" refers to the direction away from the ground and upward, and the term "bottom" refers to the direction toward the ground.

The inner container 1 and the container opening flange 11 are riveted to form an integral structure, part of the side wall of the container opening flange 11 forms the side wall of the step 113, and part of the side wall of the inner container 1 forms the end wall of the step 113. Note that, the side wall of the step 113 surrounds the central axis of the inner container 1, and the end wall of the step 113 is perpendicular to the central axis of the inner container 1.

The support 3 may be a cylinder, a cube, a circular truncated cone, and the like, and the embodiment of the present invention is not limited herein. The support table 3 has a housing cavity which communicates with the first central passage 21 of the connection ring 2. The support table 3 may be a block structure, and a receiving cavity is formed in the support table to communicate with the first central passage 21 of the connection ring 2, so that the glaze slurry in the inner container 1 enters the receiving cavity through the first central passage 21. The support table 3 may further include a barrel-shaped side wall, a bottom wall disposed at a bottom end of the barrel-shaped side wall, and a top wall disposed at a top end of the barrel-shaped side wall, the top wall being provided with a via hole communicated with the first central channel 21, the top wall, the barrel-shaped side wall, and the bottom wall forming an accommodating cavity. The forming structure of the accommodating cavity is not limited in the embodiment of the invention.

The support table 3 and the bottom of the connecting ring 2 are connected in various ways, for example, the top of the support table 3 is welded with the bottom of the connecting ring 2, so that the inner container enameling tool is stable in structure and high in strength; for another example, the top of the support platform 3 is clamped with the bottom of the connection ring 2, so that the support platform 3 and the connection ring 2 can be conveniently detached, cleaned and maintained.

With continued reference to fig. 4, when the liner enamel tool is used, the top end of the connecting ring 2 is abutted against the step end face of the liner to be enameled, then the other end of the liner is coated with the glaze slurry, and the glaze slurry enters the accommodating cavity of the supporting table 3 through the central hole of the liner opening flange and the first central channel 21 of the connecting ring 2, so that the glaze slurry is prevented from entering the threaded hole of the liner opening flange, and the influence of the glaze slurry on the conductivity of the electric heating tube can also be avoided.

Further, the outer side wall of the connecting ring 2 is attached to the side surface of the step 113 at the end of the inner container 1, that is, the outer side wall of the connecting ring 2 is attached to the side wall of the step 113, so that glaze slip is prevented from flowing out from a gap between the connecting ring 2 and the side surface of the step 113.

In a possible embodiment, referring to fig. 3, the support table 3 is provided with at least two bosses 31, and the at least two bosses 31 are arranged at intervals along the circumferential direction of the connection ring 2; the boss 31 is provided with a diversion hole 311 communicated with the accommodating cavity.

When the liner of some electric water heaters is enameled, a bolt is already installed in a threaded hole of a liner opening flange of the liner, for example, the liner 1 of the small kitchen treasure, when the liner 1 of the small kitchen treasure is enameled, the bolt is already in threaded connection with a threaded hole 111 of the liner opening flange 11, an electric heating tube needs to be installed at the liner opening flange 11, the electric heating tube is electrically connected with a power supply device of the small kitchen treasure through the inner wall of the threaded hole 111 and the bolt, that is, the power supply device of the small kitchen treasure is electrically connected with the electric heating tube through the bolt and the inner wall of the threaded hole 111, so that the bolt is required to be electrically conductive with the inner wall of the threaded. And the side wall of the port of the inner container 1 is provided with an overflow port so that the glaze slurry in the inner container 1 flows out through the overflow port. The glaze slip flowing out of the overflow port may enter the screw hole 111.

For this purpose, the support base 3 is provided with at least two bosses 31, and the bosses 31 are abutted against bolt portions of the liner opening flange. When the inner container 1 is placed on the support platform 3, the bolt can abut against the boss 31, so that the glaze slurry in the threaded hole 111 flows into the boss 31 and then enters the accommodating cavity through the diversion hole 311. Or, courage mouth flange and boss 31 butt, the bolt can stretch into in water conservancy diversion hole 311, so, the glaze slip in the screw hole 111 can directly enter into through water conservancy diversion hole 311 and hold the cavity, can avoid being stained with the glaze slip on the boss 31.

Wherein, the screw hole setting that the quantity of boss 31 set up according to the courage mouth flange of inner bag, for example, to little precious inner bag 1 in kitchen, boss 31 can be provided with four, and four bosses 31 set up along the even interval of circumference of go-between 2. In some large-sized inner containers, the container opening flange may be provided with five, six, etc. threaded holes, and at this time, the boss 31 provided on the support platform 3 should also correspond to the threaded holes.

In addition, the boss 31 may be provided in an arbitrary shape, for example, the boss 31 may be circular, rectangular, irregular, or the like. For example, referring to fig. 3, the boss 31 has a fan-shaped structure, that is, the boss 31 includes a first arc-shaped edge, a second arc-shaped edge, a first side edge and a second side edge, wherein the arc centers of the first arc-shaped edge and the second arc-shaped edge may both coincide with the center of the circular connecting ring 2, the first arc-shaped edge may extend along the circumferential direction of the outer side wall of the circular connecting ring 2, the second arc-shaped edge has a gap with the first arc-shaped edge, the first side edge is connected with the first end of the first arc-shaped edge and the first end of the second arc-shaped edge, the second side edge is connected with the second end of the first arc-shaped edge and the second end of the second arc-shaped edge, that is, the first arc-shaped edge, the first side edge, the second arc-shaped edge and the. Therefore, the boss is convenient to process, and the supporting area can be increased.

Further, a diversion trench 35 is formed between two adjacent bosses 31, and the bolt of the inner container can be opposite to the diversion trench 35, so that the threaded hole of the flange of the inner container opening is opposite to the diversion trench 35, and the glaze slurry in the threaded hole can flow out through the diversion trench 35.

In some implementations, one guiding hole 311 is disposed on each boss 31, and the guiding holes 311 are arc-shaped holes extending along the circumferential direction of the connection ring 2.

Specifically, the boss 31 is provided with an arc-shaped diversion hole 311, and the arc-shaped diversion hole 311 extends along the circumferential direction of the connection ring 2, so that the cross-sectional area of the diversion hole 311 can be increased, and glaze slurry in the threaded hole flows more smoothly.

In other implementations, a plurality of flow guiding holes 311 are provided on each boss 31, and the plurality of flow guiding holes 311 are spaced along the circumferential direction of the connection ring 2.

Specifically, referring to fig. 3, the diversion holes 311 may be holes of any shape, and preferably, the diversion holes 311 are circular holes, which facilitates processing. The number of the flow guide holes 311 on each boss 31 is not limited in the present invention, and those skilled in the art can set the flow guide holes according to actual situations.

Of course, the diversion holes 311 disposed on each boss 31 may be the same, for example, three diversion holes 311 are disposed on each boss 31. The diversion holes 311 disposed on each boss 31 may also be different, for example, two diversion holes 311 are disposed on a part of the bosses 31, and three diversion holes 311 are disposed on another part of the bosses 31.

Preferably, the number and shape of the flow guiding holes 311 provided on each boss 31 are the same, so as to facilitate the processing.

In order to collect the glaze slip that holds the cavity in order to recycle, reduce the waste of glaze slip, can also be provided with the collecting vessel in the bottom that holds the cavity, the collecting vessel passes through the pipeline and holds the cavity intercommunication, perhaps, the collecting vessel is direct with hold the cavity intercommunication to make the glaze slip that holds in the cavity can get into in the collecting vessel, with repeated recycle, save the glaze slip, reduction in production cost.

In a specific embodiment, referring to fig. 2, an overflow opening 32 is provided on the support table 3, and the overflow opening 32 communicates with the receiving cavity.

The overflow opening 32 is used for guiding out glaze slurry in the accommodating cavity, and may be disposed on a bottom wall of the accommodating cavity, or may be disposed on a side wall of the accommodating cavity. The overflow opening 32 may be a circular opening, an oval opening, a polygonal opening, an irregularly shaped opening, or the like. Alternatively, referring to fig. 2, the overflow opening 32 is a semicircular opening, the overflow opening 32 is provided on the side wall of the receiving cavity, and the overflow opening 32 is in contact with the bottom wall of the receiving cavity, so that the glaze slurry in the receiving cavity can sufficiently flow out.

One overflow opening 32 can be provided, so that all glaze slip can flow out of the overflow opening 32, and collection and reuse of the glaze slip are facilitated.

Of course, the overflow opening 32 may be provided in plurality, and the plurality of overflow openings 32 are provided at intervals along the circumferential direction of the connection ring 2. For example, overflow opening 32 can set up three, four etc. and a plurality of overflow openings 32 set up along the even interval of the circumference of go-between 2, so can make the slip outwards flow from a plurality of directions of holding the cavity, avoid the slip to be detained too for a long time in holding the cavity and still influence its mobility.

With continuing reference to fig. 2 to 4, the liner enameling tool further comprises a base 4, wherein the base 4 is connected with the bottom end of the support platform 3.

The base 4 may be a cylindrical structure, the base 4 may also be a cubic structure, and the base 4 may also be a block structure with an irregular shape, which is not limited in the present invention. Preferably, the base 4 is a conical structure with a small top end and a large bottom end, for example, the base 4 is a circular truncated cone structure, a truncated pyramid structure, or the like, so as to support the liner more stably and prevent the liner from toppling over during the enameling process.

With continued reference to fig. 2, the edge of the base 4 is provided with a lightening opening 41, and the lightening opening 41 may be any shape, which is not limited herein. In order to ensure the balance of the base 4 supporting the liner, the weight-reduction openings 41 are provided in plurality, for example, three, four, etc. When the base 4 is a circular truncated cone structure, the plurality of weight-reduction openings 41 are uniformly spaced along the circumferential direction of the base 4.

The connected mode of base 4 and brace table 3 has the multiple, for example, is provided with the joint structure on base 4 and the brace table 3 respectively, and base 4 makes things convenient for the dismantlement of base 4 and brace table 3 with 3 joints of brace table. For another example, the base 4 is welded to the bottom end of the supporting platform 3, so that the base 4 is stably and reliably connected to the supporting platform 3.

Preferably, brace table 3 welds with go-between 2, base 4 respectively, promptly, the top and the go-between 2 welding of brace table 3, and the bottom and the base 4 welding of brace table 3, so make go-between 2, brace table 3 and base 4 weld into an organic whole for the inner bag enamels the stable in structure of frock, support inner bag that can be better enamels.

In a preferred implementation, reference is made to fig. 5, wherein fig. 5 is a cross-sectional view of a support table of the liner enameling tool of the present invention. The support table 3 comprises a support ring 33 connected with a base 4 and a support flat plate 34 arranged at the top end of the support ring 33, wherein the top surface of the base 4, the support ring 33 and the support flat plate 34 are enclosed to form an accommodating cavity; the support plate 34 is provided with a through hole 341 communicating the receiving cavity and the connection ring 2.

Specifically, the support table 3 includes a support ring 33 and a support plate 34, wherein a top end of the support ring 33 is connected to a bottom surface of the support plate 34, a bottom end of the support ring 33 is connected to the base 4, a top surface of the support plate 34 is connected to the connection ring 2, and a through hole 341 is provided on the support plate 34, and the through hole 341 communicates the first central passage 21 of the connection ring 2 and the second central passage 331 of the support ring 33.

The boss 31 is disposed on the support plate 34, and at this time, the guide hole 311 penetrates through the boss 31 and the thickness of the support plate 34, and the guide hole 311 communicates with the second central passage 331 of the support ring 33.

The overflow openings 32 are provided on the support ring 33, and the overflow openings 32 penetrate through the thickness of the side wall of the support ring 33, so that the overflow openings 32 communicate with the second central passage 331 of the support ring 33. The bottom surface of the overflow opening 32 is coplanar with the top surface of the base 4, i.e. the overflow opening 32 is located at the bottom end of the support ring 33.

It should be noted that the top surfaces of the support plate 34, the support ring 33 and the base 4 enclose a receiving cavity, i.e. the second central passage 331 of the support ring 33 is defined between the support plate 34 and the base 4 to form a receiving cavity.

The support table comprises the support ring and the support flat plate, is simple in structure, convenient to process and beneficial to improving the processing efficiency, and is respectively connected with the base and the connecting ring through the support ring and the support flat plate, so that the structural stability of the liner enameling tool is improved.

In conclusion, the lining tool for the inner container is abutted to the step surface of the port of the inner container through the connecting ring, and the supporting table is provided with the accommodating cavity communicated with the connecting ring, so that redundant glaze slurry in the inner container enters the accommodating cavity through the connecting ring, and the phenomenon that the connection between a bolt and a threaded hole is influenced because the glaze slurry enters the threaded hole of the flange of the port of the inner container is avoided; for the liner opening flange for mounting the electric heating tube, the glaze slip is prevented from entering the threaded hole to influence the heating performance of the electric heating tube.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.