CN212645364U - Novel dewaxing pipe assembly - Google Patents

Abstract

A novel dewaxing pipe component relates to the technical field of sintering and forming. Comprises an inner pipe and an outer pipe. The outer tube has the matching section that is used for cooperating with the inner tube, and the matching section includes: the first expanding section, the first transition section and the first reducing section. The first transition section is connected between the first diameter expanding section and the first diameter reducing section, and the first diameter reducing section is used for being connected with the body of the outer tube. The inner tube includes: the second diameter expanding section, the second transition section and the second reducing section are matched with the first reducing section. The second transition section is connected between the second expanding section and the second reducing section. The outer diameter of the second reducing section is equal to the inner diameter of the first reducing section. The device has the advantages of simple structure, low cost and easy implementation, can reduce the leakage of wax gas, is beneficial to reducing the accumulation of wax in the furnace, relatively reduces the corrosion of adiabatic materials and graphite parts in the furnace by the wax gas, prolongs the service life and improves the product quality.

Description

Novel dewaxing pipe assembly

Technical Field

The utility model relates to a sintering shaping technical field particularly, relates to a novel dewaxing pipe subassembly.

Background

The dewaxed product is sintered in an oven, and a large amount of wax accumulates in the oven each time it is tapped. After each time of furnace discharge, wax deposition in the furnace must be removed, which is time-consuming and labor-consuming. And the wax deposition in the furnace has adverse effects on the sintering furnace and the sintered product.

In view of this, the present application is specifically made.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel dewaxing pipe assembly, its simple structure, low cost, easy to carry out can reduce the wax gas and leak, help reducing the accumulation of stove wax, reduced stove adiabatic material, graphite spare relatively and corroded by the wax gas, prolonged life, promoted the product quality.

The embodiment of the utility model is realized like this:

a novel dewax tube assembly comprising: an inner tube and an outer tube. The outer tube has the matching section that is used for cooperating with the inner tube, and the matching section includes: the first expanding section, the first transition section and the first reducing section. The first transition section is connected between the first diameter expanding section and the first diameter reducing section, and the first diameter reducing section is used for being connected with the body of the outer tube.

The inner tube includes: the second diameter expanding section, the second transition section and the second reducing section are matched with the first reducing section. The second transition section is connected between the second expanding section and the second reducing section. The outer diameter of the second reducing section is equal to the inner diameter of the first reducing section.

Furthermore, the inner tube is provided with a joint part for jointing with the end part of the outer tube, the joint part is provided with a positioning column, and the end part of the positioning column is provided with a positioning flange.

The end of the outer tube is provided with a mounting hole and a positioning hole matched with the positioning column. The mounting hole is parallel to the positioning hole and is arranged at intervals, the mounting hole is also provided with an extension groove, the extension groove is formed by the hole wall of the mounting hole along the radial direction of the mounting hole in a recessed mode, and the extension groove extends continuously along the circumferential direction of the mounting hole in an annular mode. The extension groove is communicated with the positioning hole.

The mounting hole is rotatably engaged with an adjustment post, which also has an extension arm slidably engaged with the extension groove. The end of the extension arm is provided with a notch matched with the positioning column.

The adjustment post is matched with a torsion spring and used for driving the adjustment post to rotate, so that the extension arm is matched with the positioning post through the notch, and the positioning flange is locked in the positioning hole.

Furthermore, the positioning flange is disc-shaped and is perpendicular to the positioning column. The cavity of the positioning hole is cylindrical, and the aperture of the positioning hole is the same as the outer diameter of the positioning flange.

Further, the cross section of the notch is semicircular.

Furthermore, one end, close to the second transition section, of the second diameter expanding section is sleeved with a first matching ring, and one side, close to the second transition section, of the first matching ring is provided with a matching column arranged along the axial direction of the inner pipe. The plurality of matching columns are uniformly arranged at intervals along the circumferential direction of the first matching ring. The inner wall of the first transition section is provided with a first matching ring, and one side of the first matching ring, which is close to the first diameter expansion section, is provided with a matching hole which is used for being in interference fit with a matching column. Wherein, the first matching ring is made of heat-resistant rubber, and the first matching ring and the matching column are made of hard materials.

Furthermore, a second matching ring used for being in interference fit with the first reducing section is further sleeved at one end, close to the second transition section, of the second reducing section. And a second diameter expanding section points to the direction of the second diameter reducing section along the axial direction of the inner pipe, and the outer diameter of the second matching ring is reduced progressively. The maximum outer diameter of the second mating ring is larger than the inner diameter of the first reducing section, and the minimum outer diameter of the second mating ring is equal to the inner diameter of the first reducing section. The second mating ring is made of heat resistant rubber.

Further, the outer wall of the extension arm is smoothed.

Furthermore, the inner wall of the notch and the outer wall of the positioning column are both subjected to frosting treatment.

Furthermore, the end of the adjusting column is rotatably embedded in the end of the outer tube, and the end of the adjusting column is provided with a tip matched with a screwdriver.

The embodiment of the utility model provides a beneficial effect is:

the embodiment of the utility model provides a novel dewaxing pipe assembly is in the use, and outer tube and inner tube can realize closely laminating through first reducing section and second reducing section, have improved closely degree of cooperation and airtight effect between outward appearance and the inner tube greatly, reach approximate seamless connection, reduce wax gas leakage. Therefore, the accumulation of wax in the furnace can be effectively reduced, the corrosion of the furnace adiabatic material and the graphite piece by wax gas is relatively reduced, the service life is prolonged, and the product quality is improved. Simultaneously, the dewaxing effect is improved, and the processing effect and the product quality are further improved.

Generally, the embodiment of the utility model provides a novel dewaxing pipe subassembly simple structure, low cost, easy to carry out can reduce wax gas and leak, help reducing the accumulation of stove wax, reduced stove adiabatic material, graphite spare relatively and corroded by wax gas, prolonged life, promoted the product quality.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a novel dewaxing pipe assembly according to an embodiment of the present invention in a first configuration;

fig. 2 is a schematic structural view of an inner tube of a novel dewaxing tube assembly according to an embodiment of the present invention in a second configuration;

FIG. 3 is an enlarged view of area A of FIG. 2;

fig. 4 is a schematic structural view of an outer tube of a novel dewaxing tube assembly according to an embodiment of the present invention, in a second configuration;

FIG. 5 is an enlarged view of area B of FIG. 4;

fig. 6 is a schematic view illustrating a matching state of an outer pipe and an inner pipe when the novel dewaxing pipe assembly provided by the embodiment of the present invention adopts a second structure;

fig. 7 is an enlarged view of the region C in fig. 6.

Icon: a novel dewaxing tube assembly 1000; an inner tube 100; a second expanding section 110; a second transition section 120; a second reducing section 130; a bonding section 140; a positioning post 150; a positioning flange 160; a matching section 210; a first diameter expanding section 211; a first transition section 212; a first reducing section 213; mounting holes 220; an extension groove 230; positioning holes 240; an adjustment column 300; an extension arm 310; a first mating ring 400; a mating post 410; a first matching loop 500; a mating hole 510; a second mating ring 600.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1, the present embodiment provides a novel dewaxing tube assembly 1000. Novel dewaxing tube assembly 1000 includes: an inner tube 100 and an outer tube.

The outer tube has a mating section 210 for mating with the inner tube 100, the mating section 210 comprising: a first expanded diameter section 211, a first transition section 212 and a first reduced diameter section 213. The first transition section 212 is connected between the first expanding section 211 and the first reducing section 213, and the first reducing section 213 is used for connecting with the body of the outer tube.

The inner tube 100 includes: a second expanded diameter section 110, a second transition section 120, and a second reduced diameter section 130 for mating with the first reduced diameter section 213. The second transition section 120 is connected between the second expanded diameter section 110 and the second reduced diameter section 130. The second reducing section 130 has an outer diameter equal to the inner diameter of the first reducing section 213.

In the use, outer tube and inner tube 100 can realize closely laminating through first reducing section 213 and second reducing section 130, have improved closely degree of cooperation and airtight effect between outward appearance and the inner tube 100 greatly, reach approximate seamless connection, reduce wax gas leakage. Therefore, the accumulation of wax in the furnace can be effectively reduced, the corrosion of the furnace adiabatic material and the graphite piece by wax gas is relatively reduced, the service life is prolonged, and the product quality is improved. Simultaneously, the dewaxing effect is improved, and the processing effect and the product quality are further improved.

In general, the novel dewaxing pipe assembly 1000 is simple in structure, low in cost and easy to implement, can reduce wax gas leakage, is beneficial to reducing wax accumulation in the furnace, relatively reduces corrosion of furnace adiabatic materials and graphite pieces by the wax gas, prolongs service life and improves product quality.

Further, referring to fig. 2 to 7, the inner tube 100 has a fitting portion 140 for fitting with an end portion of the outer tube, the fitting portion 140 has a positioning post 150, the positioning post 150 extends from the fitting portion 140 to a side where the second reduced diameter section 130 is located, and an end portion of the positioning post 150 far away from the fitting portion 140 has a positioning flange 160. In this embodiment, the attaching portion 140 is annular and is sleeved on the outer wall of the second expanding section 110, and the attaching portion 140 is fixedly connected with the outer wall of the second expanding section 110. The positioning post 150 is cylindrical, and the positioning post 150 is disposed along the axial direction of the inner tube 100. The positioning flange 160 is pie shaped.

The end of the outer tube is provided with a mounting hole 220 and a positioning hole 240 for matching with the positioning post 150. The mounting hole 220 and the positioning hole 240 are parallel and spaced, and both the mounting hole 220 and the positioning hole 240 are opened in an end wall of the first diameter-expanding section 211, which is far away from the first transition section 212. The mounting hole 220 further has an extension groove 230, the extension groove 230 is formed by recessing the hole wall of the mounting hole 220 in the radial direction thereof, and the extension groove 230 extends continuously in the circumferential direction of the mounting hole 220 in a ring shape. The extension groove 230 communicates with the positioning hole 240. In this embodiment, the mounting hole 220 and the positioning hole 240 are both cylindrical and are parallel and spaced apart. The cavity of the extension groove 230 has an overall disk shape.

The mounting hole 220 is rotatably fitted with an adjustment post 300, and the adjustment post 300 further has an extension arm 310, and the extension arm 310 is slidably fitted with the extension groove 230. The end of the extension arm 310 is provided with a notch for matching with the positioning post 150. In the present embodiment, the adjusting column 300 has a cylindrical shape, and the extension arm 310 is disposed along a radial direction of the adjusting column 300. The thickness of the extension arm 310 is slightly smaller than the thickness of the groove cavity of the extension groove 230 in the axial direction of the mounting hole 220.

The adjustment post 300 is fitted with a torsion spring for driving the adjustment post 300 to rotate, so that the extension arm 310 engages with the positioning post 150 by using the notch, thereby locking the positioning flange 160 to the positioning hole 240.

Through the design, when the outer pipe and the inner pipe 100 need to be matched, the inner pipe 100 extends into the outer pipe, the outer wall of the second reducing section 130 is attached to the inner wall of the first reducing section 213, the second reducing section 130 is matched with the first reducing section 213, and the attaching part 140 of the inner pipe 100 is attached to the end wall, far away from the first transition section 212, of the first expanding section 211 of the outer pipe. The positioning posts 150 are fitted to the positioning holes 240.

The adjusting post 300 is rotated against the elasticity of the torsion spring, so that the extending arm 310 gives way to the positioning post 150. After the positioning post 150 is matched in place in the positioning hole 240, the adjusting post 300 is released, the extension arm 310 is matched with the positioning post 150 again under the elastic force of the torsion spring, and the notch of the extension arm 310 is attached to the outer wall of the positioning post 150. At this time, the positioning flange 160 is located on the side of the extension arm 310 away from the mouth of the positioning hole 240, so as to lock the positioning post 150 in the positioning hole 240, thereby achieving the assembly of the outer tube and the inner tube 100.

If the outer tube and the inner tube 100 need to be detached, the inner tube 100 can be removed by rotating the adjustment post 300 to disengage the extension arm 310 from the positioning post 150, releasing the positioning post 150.

By the design, the assembling stability and reliability are improved, and the assembling and the disassembling are very convenient.

In the present embodiment, the length of the positioning column 150 is controlled to satisfy: when the fitting portion 140 of the inner tube 100 is fitted to the end portion of the outer tube, after the positioning post 150 is fitted into the positioning hole 240, a side wall of the extension arm 310 away from the opening portion of the positioning hole 240 is fitted to a side wall of the positioning flange 160 close to the opening portion of the positioning hole 240.

In the present embodiment, the positioning flange 160 is disc-shaped, and the positioning flange 160 is disposed perpendicular to the positioning pillar 150. The cavity of the positioning hole 240 is cylindrical, and the diameter of the positioning hole 240 is the same as the outer diameter of the positioning flange 160. The cross section of the notch is semicircular.

Further, one end of the second expanding section 110 close to the second transition section 120 is sleeved with a first mating ring 400, and one side of the first mating ring 400 close to the second transition section 120 is provided with a mating column 410 arranged along the axial direction of the inner tube 100. The plurality of coupling posts 410 are uniformly spaced along the circumference of the first coupling ring 400. The inner wall of the first transition section 212 is provided with a first matching ring 500, and one side of the first matching ring 500 close to the first diameter-expanding section 211 is provided with a matching hole 510 for interference fit with the matching column 410. Wherein the first mating ring 500 is made of heat-resistant rubber, and the first mating ring 400 and the mating post 410 are made of hard material.

The end of the second reducing section 130 close to the second transition section 120 is further sleeved with a second mating ring 600 for interference fit with the first reducing section 213. The outer diameter of the second mating ring 600 decreases in the axial direction of the inner tube 100 and in the direction in which the second expanded diameter section 110 points toward the second reduced diameter section 130. The maximum outer diameter of the second mating ring 600 is greater than the inner diameter of the first reducing section 213 and the minimum outer diameter of the second mating ring 600 is equal to the inner diameter of the first reducing section 213 (it should be noted that the minimum outer diameter of the second mating ring 600 is equal to the inner diameter of the first reducing section 213, i.e. it is shown in the secondary position where the outer wall of the second mating ring 600 has engaged the outer wall of the second reducing section 130, i.e. where the protrusion height of the second mating ring 600 relative to the second reducing section 130 has been zero). The second mating ring 600 is made of heat resistant rubber.

When the outer and inner tubes 100 and 100 are fully mated, the mating post 410 is fitted into the mating hole 510, the first mating ring 400 is fitted to the first mating ring 500, and the second mating ring 600 is fitted between the outer wall of the second reduced-diameter section 130 and the inner wall of the first reduced-diameter section 213.

Through the design, the matching tightness of the outer pipe and the inner pipe 100 can be further improved, and the air tightness is improved. In addition, the overall structural strength of the outer tube and the inner tube 100 at the matching position can be further improved, and the stability and the safety in the use process are greatly improved. Easy dismounting, flexibility and easy use.

Further, in this embodiment, the outer wall of the extension arm 310 is smoothed. The inner wall of the notch and the outer wall of the positioning column 150 are both frosted. The end of the adjusting column 300 is rotatably embedded in the end of the outer tube, and the end of the adjusting column 300 is provided with a tip matched with a screwdriver.

In conclusion, the novel dewaxing pipe assembly 1000 is simple in structure, low in cost and easy to implement, can reduce wax gas leakage, is beneficial to reducing wax accumulation in the furnace, relatively reduces corrosion of furnace heat insulation materials and graphite pieces by the wax gas, prolongs service life and improves product quality.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A novel dewax tube assembly comprising: an inner tube and an outer tube; the outer tube has a mating section for mating with the inner tube, the mating section comprising: the first diameter expanding section, the first transition section and the first reducing section; the first transition section is connected between the first diameter expanding section and the first diameter reducing section, and the first diameter reducing section is used for being connected with the body of the outer tube;

the inner tube includes: the second diameter expanding section, the second transition section and the second reducing section are matched with the first reducing section; the second transition section is connected between the second expanding section and the second reducing section; the outer diameter of the second reducing section is equal to the inner diameter of the first reducing section.

2. The novel dewaxed tube assembly of claim 1, wherein the inner tube has a fitting portion for fitting with an end portion of the outer tube, the fitting portion having a positioning post, an end portion of the positioning post having a positioning flange;

the end part of the outer pipe is provided with a mounting hole and a positioning hole which is used for being matched with the positioning column; the mounting hole and the positioning hole are parallel and arranged at intervals, the mounting hole is also provided with an extension groove, the extension groove is formed by recessing the hole wall of the mounting hole along the radial direction of the mounting hole, and the extension groove continuously extends along the circumferential direction of the mounting hole to form a ring shape; the extension groove is communicated with the positioning hole;

the mounting hole is rotatably matched with an adjusting column, the adjusting column is also provided with an extending arm, and the extending arm is slidably matched with the extending groove; a notch used for being matched with the positioning column is formed in the end part of the extension arm;

the adjusting column is matched with a torsion spring and used for driving the adjusting column to rotate, so that the extension arm utilizes the gap to be matched with the positioning column, and the positioning flange is locked in the positioning hole.

3. The novel dewaxed tube assembly of claim 2, wherein said positioning flange is disc-shaped and disposed perpendicular to said positioning post; the cavity of the positioning hole is cylindrical, and the aperture of the positioning hole is the same as the outer diameter of the positioning flange.

4. The novel dewaxed tube assembly of claim 2, wherein the notch has a semi-circular cross-section.

5. The novel dewaxing tube assembly of claim 2, wherein a first mating ring is sleeved on one end of the second expanded diameter section close to the second transition section, and a mating column arranged along the axial direction of the inner tube is arranged on one side of the first mating ring close to the second transition section; the matching columns are uniformly arranged at intervals along the circumferential direction of the first matching ring; a first matching ring is arranged on the inner wall of the first transition section, and a matching hole which is in interference fit with the matching column is formed in one side, close to the first diameter-expanding section, of the first matching ring; wherein the first mating ring is made of heat-resistant rubber, and the first mating ring and the mating post are made of hard material.

6. The novel dewaxing tube assembly of claim 5, wherein an end of the second reduced diameter section adjacent to the second transition section is further sleeved with a second mating ring for interference fit with the first reduced diameter section; the outer diameter of the second matching ring is decreased progressively along the axial direction of the inner pipe and in the direction that the second diameter expanding section points to the second diameter reducing section; the maximum outer diameter of the second mating ring is larger than the inner diameter of the first reducing section, and the minimum outer diameter of the second mating ring is equal to the inner diameter of the first reducing section; the second mating ring is made of heat resistant rubber.

7. The novel dewaxed tube assembly of claim 4, wherein the outer wall of the extension arm is smoothed.

8. The novel dewaxed tube assembly of claim 4, wherein an inner wall of the notch and an outer wall of the positioning post are both frosted.

9. The novel dewaxing tube assembly of claim 4, wherein an end of the adjustment post is rotatably embedded in an end of the outer tube, and the end of the adjustment post is provided with a tip for mating with a screwdriver.

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