A weight-reducing flange for connecting a liquid riser pipe

Abstract

The utility model provides a weight-reducing flange for connecting a liquid riser, which is provided with a flange body, a connecting hole is formed through the flange body, an annular shoulder is provided in the middle of the inner wall of the connecting hole, a bushing is fitted in the connecting hole on one side of the annular shoulder, a flange clip is connected to the side of the flange body opposite to the bushing, and the flange body is detachably connected to the bushing and the flange clip. The utility model has a simple structure, and the flange body, the bushing, and the flange clip are separately arranged to reduce weight, which reduces the labor intensity of workers, reduces abnormal damage to the liquid riser during transportation, increases the convenience of workers' transportation and installation, and improves safety. The groove weight-reducing design of the weight-reducing groove and the grabbing groove further reduces the weight of the flange body, facilitates the gripping of the flange body, reduces the difficulty of operation for workers, improves assembly efficiency, effectively increases the service life of the liquid riser, reduces the cost of use, and can be widely used in the field of liquid riser assembly technology.

Description

Technical Field

[0001] The utility model relates to the technical field of riser pipes for casting, in particular to a weight-reducing flange for connecting the riser pipes. Background Art

[0002] Differential pressure casting is one of the most advanced metal forming methods. It is an effective way to achieve less cutting or no cutting. It is widely used and developing rapidly. Aluminum titanate riser tube plays a key role in the die casting process with its good low thermal conductivity, high strength and thermal shock resistance, and non-wetting performance with aluminum liquid.

[0003] The aluminum titanate riser is one of the key components of counter-gravity casting. When punching the mold, the molten metal enters the mold from the crucible through the riser under the action of gas pressure. When the pressure is released, the unsolidified molten metal also flows back to the crucible through the riser.

[0004] The aluminum titanate riser tube is difficult to transport, disassemble and assemble due to its heavy weight. It is easy for it to be bumped during transportation and bumped against the crucible wall during installation, which seriously affects the quality of the riser tube. Utility Model Content

[0005] The purpose of the utility model is to provide a weight-reducing flange for connecting a riser pipe, which reduces the labor intensity of workers by reducing the weight of the flange body, reduces abnormal damage to the riser pipe during transportation, reduces the cost of use, and improves assembly efficiency.

[0006] To this end, the utility model provides a weight-reducing flange for connecting a liquid riser, which is provided with a flange body, a connecting hole is formed through the flange body, an annular shoulder is provided in the middle of the inner wall of the connecting hole, a bushing is adapted in the connecting hole on one side of the annular shoulder, a flange clip is connected to the side of the flange body opposite to the bushing, and the flange body, the bushing and the flange clip are detachably connected.

[0007] Preferably, a countersunk threaded hole is formed through the end surface of the flange body close to the bushing, and a threaded blind hole is formed on the end surface of the flange holder close to the flange body. The flange body and the flange holder are fixedly connected together by screws through the countersunk threaded hole and the threaded blind hole.

[0008] Preferably, a weight-reducing groove is provided on the end surface of the flange body, and a fixing hole is provided through the bottom surface of the weight-reducing groove.

[0009] Preferably, a plurality of gripping grooves are also provided on the circumferential side surface of the flange body.

[0010] Preferably, the bushing and the flange clip are both columnar structures with through holes, and the through holes are connected to the connecting holes of the flange body.

[0011] Preferably, the end faces of the flange body and the bushing are both provided with catch blind holes.

[0012] The utility model provides a weight-reducing flange for connecting a liquid riser pipe, which has the following beneficial effects:

[0013] The utility model has a simple structure, and the flange body, bushing, and flange clip are separated to reduce weight, which reduces the labor intensity of workers, reduces abnormal damage to the lifting pipe during transportation, increases the convenience of workers' transportation and installation, and improves safety. The weight-reducing groove design of the weight-reducing groove and the grabbing groove further reduces the weight of the flange body, facilitates the gripping of the flange body, reduces the difficulty of operation for workers, improves assembly efficiency, effectively increases the service life of the lifting pipe, and reduces the cost of use. It can be widely used in the field of lifting pipe assembly technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a structural schematic diagram of an exploded view of the utility model.

[0016] Markings in the figure: 1. Flange body, 11. Connecting hole, 12. Annular shoulder pad, 13. Countersunk threaded hole, 14. Weight reduction groove, 15. Fixing hole, 16. Grabbing groove, 2. Bushing, 21. Grabbing blind hole, 3. Flange clip, 31. Threaded blind hole. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments to help understand the content of the present invention. The methods used in the present invention are all conventional methods unless otherwise specified; the raw materials and devices used are all conventional commercial products unless otherwise specified.

[0018] Depend on Figure 1-Figure 2As shown, the utility model provides a weight-reducing flange for connecting a liquid riser, which is provided with a flange body 1, and a connecting hole 11 is opened through the flange body 1. An annular shoulder 12 is provided in the middle of the inner wall of the connecting hole 11. A bushing 2 is adapted to be provided in the connecting hole 11 on one side of the annular shoulder 12, and the bushing 2 is interference fit with the flange body 1. The setting of the annular shoulder 12 can play the role of supporting the bushing 2, and prevent the top downward pressure from directly acting on the ceramic pipe flange to cause the ceramic pipe flange to be fractured. A flange clip 3 is connected to the side of the flange body 1 opposite to the bushing 2, and the flange clip 3 is used to connect with the liquid riser. The flange body 1 is detachably connected with the bushing 2 and the flange clip 3. The bushing 2 and the flange clip 3 are both columnar structures with through holes, and their through holes are connected with the connecting hole 11 of the flange body 1. The flange body 1, bushing 2 and flange bracket 3 are designed separately. On the one hand, it is convenient to disassemble the device before transportation, which reduces the labor intensity of workers and avoids bumps and damages. On the other hand, the split weight-reducing design reduces the difficulty of installation and ensures the installation accuracy.

[0019] The end surface of the flange body 1 close to the bushing 2 is provided with a plurality of countersunk threaded holes 13, and the end surface of the flange clip 3 close to the flange body 1 is provided with a corresponding threaded blind hole 31. The flange body 1 and the flange clip 3 are fixedly connected together by screws through the countersunk threaded holes 13 and the threaded blind holes 31. The design of the countersunk threaded holes 13 can achieve both weight reduction and installation avoidance.

[0020] The end surface of the flange body 1 is also provided with a plurality of weight-reducing grooves 14, and the bottom surface of the weight-reducing grooves 14 is penetrated with fixing holes 15, and the plurality of fixing holes 15 are equidistantly arranged on the outside of the circumferential end surface of the flange body 1. During installation, the fixing holes 15 are used to connect the riser pipe, the flange body 1 and the equipment together, and the provision of the weight-reducing grooves 14 further reduces the weight of the flange body 1.

[0021] The circumferential side of the flange body 1 is also provided with a plurality of gripping grooves 16 along the radial direction. The gripping grooves 16 are hollowed out and concave, which can reduce the weight by more than 500g while maintaining the rigidity of the flange body 1, thereby reducing the difficulty of workers' handling and installation and increasing safety. At the same time, the weight-reducing groove setting also provides workers with gripping space during the handling process, making it easier to take the goods, further improving the safety of the handling process, reducing the number of handling damages, and reducing the use cost.

[0022] The end faces of the flange body 1 and the bushing 2 are also provided with a grabbing blind hole 21. The provision of the grabbing blind hole 21 facilitates the separation operation of the bushing 2 from the flange body 1, and the flange body 1 from the equipment, thereby improving the installation and disassembly efficiency.

[0023] In order to further achieve the purpose of weight reduction, the inner diameter of the through hole of the flange bracket 3 decreases from the inside to the outside. The inner diameter of the through hole at the end of the flange bracket 3 close to the flange body 1 is larger than the inner diameter of the through hole at the end of the flange bracket 3 away from the flange body 1. This arrangement enables the flange bracket 3 to connect the flange body 1 with the liquid riser well, facilitating the circulation of the liquid inside.

[0024] The use process of the utility model is:

[0025] Before installing the riser, first disassemble the flange body 1, bushing 2 and flange clip 3 and carry them in sequence, which not only reduces the labor intensity of the workers, but also reduces the damage caused by bumps. When installing the riser, first use the blind hole 21 to install the bushing 2 in the through hole of the flange body 1, and then use screws through the countersunk threaded hole 13 and the threaded blind hole 31 to fix the flange body 1 and the flange clip 3 together. Finally, put the riser on the outer periphery of the flange clip 3, and use screws through the fixing holes 15 to connect and fix the flange body 1, the equipment and the riser. After the flange body 1, the equipment and the riser are fixed, the through hole of the bushing 2 corresponds to the connection hole of the equipment, and the through hole of the flange clip 3 corresponds to the through hole of the riser.

[0026] The utility model has a simple structure, and the flange body 1, the bushing 2, and the flange clip 3 are separated and weight-reduced, which reduces the labor intensity of workers, reduces abnormal damage to the lifting pipe during transportation, increases the convenience of workers' transportation and installation, and improves safety. The groove weight-reducing design of the weight-reducing groove 14 and the grasping groove 16 further reduces the weight of the flange body 1, facilitates the gripping of the flange body 1, reduces the difficulty of operation for workers, improves assembly efficiency, effectively increases the service life of the lifting pipe, and can be widely used in the field of lifting pipe assembly technology.

[0027] In the description of the present invention, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inside", "outside", "back", "middle", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] However, what is described above is only a specific embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the scope of protection of the patent of the present invention should still fall within the scope covered by the claims of the present invention.

Claims

1. A weight-reducing flange for connecting a riser pipe, characterized in that: It is provided with a flange body, which has a connecting hole extending therethrough, an annular shoulder pad is provided in the middle of the inner wall of the connecting hole, a bushing is adapted in the connecting hole on one side of the annular shoulder pad, a flange clip is connected to the side of the flange body opposite to the bushing, and the flange body, the bushing and the flange clip are detachably connected.

2. A weight-reducing flange for connecting a riser pipe according to claim 1, characterized in that: The flange body has a countersunk threaded hole through the end surface close to the bushing, and the flange clip has a threaded blind hole through the end surface close to the flange body. The flange body and the flange clip are fixedly connected together by screws through the countersunk threaded hole and the threaded blind hole.

3. A weight-reducing flange for connecting a riser pipe according to claim 1, characterized in that: The end surface of the flange body is also provided with a weight-reducing groove, and the bottom surface of the weight-reducing groove is penetrated by a fixing hole.

4. A weight-reducing flange for connecting a riser pipe according to claim 1, characterized in that: The circumferential side surface of the flange body is also provided with a plurality of grasping grooves.

5. A weight-reducing flange for connecting a riser pipe according to claim 1, characterized in that: The bushing and the flange bracket are both columnar structures with through holes, and the through holes are connected to the connecting holes of the flange body.

6. A weight-reducing flange for connecting a riser pipe according to claim 1, characterized in that: The end faces of the flange body and the bushing are both provided with grabbing blind holes.

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