Cast pipe spraying socket end inflation plugging device capable of being used for manipulator operation

Abstract

The utility model discloses a cast pipe spraying bellmouth end inflation plugging device capable of being used for manipulator operation, which comprises a support ring and a plugging ring which are fixedly connected, the support ring is provided with a support ring opening, and the plugging ring is provided with a plugging main body ring on the inner side and an inflation expansion ring on the outer side. An annular metal forming framework is arranged between the plugging main body ring and the inflatable expansion ring, and the end parts of the two sides of the inflatable expansion ring are in vulcanization connection with the end parts of the two sides of the plugging main body ring; the support ring and the plugging main body ring are internally provided with a communicated closed air inlet channel, an inflation hole of the closed air inlet channel is formed in the support ring, an air inlet hole is formed in the metal forming framework, an inflating valve is installed on the inflation hole, and the inflation expansion ring can expand towards the outer side when inflation is conducted through the inflating valve. The air inflation expansion ring is relatively simple in structure and convenient to assemble, and leakage is not prone to occurring after the air inflation expansion ring is expanded.

Description

Technical Field

[0001] This utility model relates to an air-filled sealing device for the socket end of a cast iron pipe spray coating, specifically an air-filled sealing device for the socket end of a cast iron pipe spray coating that can be used in robotic arm operations. Background Technology

[0002] The "Assembled Inflatable Sealing Device for Cast Pipe Sockets" (application number: 202520079792.X) applied for by our company includes a left annular cap, a middle support ring, and a right annular pressure ring. It also includes an annular rubber diaphragm with an approximately G-shaped cross-section. The left side of the G-shaped annular rubber diaphragm is sealed between the right end face of the left annular cap and the left end face of the middle support ring. The right inner side of the G-shaped annular rubber diaphragm is sealed between the right inner wall of the middle support ring and the outer wall of the right annular pressure ring. In its natural state, the G-shaped... The inflatable part of the G-shaped annular rubber diaphragm is attached to the outer wall of the middle support ring; the left annular cap, the middle support ring and the right annular cap are connected and fastened by circumferentially spaced connecting bolts; the left annular cap and the middle support ring have interconnected sealed air intake channels inside, the air intake port of the left annular cap is equipped with a valve, and the exhaust port of the sealed air intake channel inside the middle support ring is located on the outer wall of the middle support ring. When inflated through the valve, the inflatable part of the G-shaped annular rubber diaphragm can expand outward.

[0003] The aforementioned assembled air-filled sealing device for cast iron pipe sockets has a modular structure, which offers the advantage of easy replacement and low maintenance costs when one component is damaged. However, it also has the following drawbacks: the overall structure includes a left annular cap, a middle support ring, a right annular cap, and a G-shaped annular rubber diaphragm. This results in a relatively large number of components, more processing steps, and a more complex assembly process. Furthermore, since the G-shaped annular rubber diaphragm is press-fitted between the left and right annular caps and the middle support ring, there is a risk of air leakage after the diaphragm expands. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a gas-filled sealing device for the spigot end of a cast pipe that is not prone to leakage after expansion, has a relatively simple structure, and is easy to assemble, and can be used for robotic arm operations.

[0005] To solve the above-mentioned technical problems, this utility model provides an air-filled sealing device for the spout end of a cast pipe used in robotic arm operations. The device includes a fixedly connected support ring and a sealing ring. The support ring has a support ring opening, and the sealing ring has an inner sealing main ring and an outer air-filled expansion ring. A ring-shaped molded skeleton is provided between the sealing main ring and the air-filled expansion ring. The two ends of the air-filled expansion ring are vulcanized to the two ends of the sealing main ring. A connected, sealed air inlet channel is provided inside the support ring and the air inlet is provided on the molded skeleton. A valve is installed on the air inlet, allowing the air-filled expansion ring to expand outwards when inflated through the valve.

[0006] As an improvement of this utility model, an annular baffle is fixed on the inner circumference of the sealing main ring on the side away from the support ring.

[0007] As a further improvement of this utility model, an annular support frame is also provided on the inner side of the sealing main ring, and the inner circumferential surface of the sealing main ring and the outer circumferential surface of the support frame are glued together.

[0008] Furthermore, the support ring and the sealing main ring are fastened together by circumferentially distributed bolts.

[0009] Furthermore, the inner circumferential surface of the annular molded skeleton is bonded to the outer circumferential surface of the sealing body ring.

[0010] Furthermore, the sealed air intake channel is equipped with sealing plugs on both the outer ring surface of the support ring and the inner ring surface of the sealing body ring.

[0011] This utility model has the following beneficial technical effects: 1. The utility model is composed of two parts: a support ring and a sealing ring. The structure is simpler and the assembly is more convenient. The two ends of the inflation ring and the two ends of the sealing main ring are vulcanized together, so the inflation ring is less prone to leakage after expansion. 2. After the sealing main ring is fixed with an annular baffle on the inner circumference away from the support ring, the coating fluid can be blocked at the front end of the utility model during spraying, avoiding the loss and waste of the coating fluid. 3. The inner circumferential surface of the annular molded skeleton and the outer circumferential surface of the sealing main ring are glued together. When inflated, gas will not enter the interface between the molded skeleton and the sealing main ring, enhancing the stability of the product. 4. The annular support skeleton is also provided on the inner side of the sealing main ring, which can further improve the support strength of the sealing ring in this utility model. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings.

[0013] Figure 1This is a schematic diagram of the assembly structure of an air-filled sealing device for the spout of a cast pipe that can be used in robotic arm operations.

[0014] Figure 2 This is a schematic diagram of the assembly structure of an air-filled sealing device for the spout of a cast pipe that can be used in robotic operations. The diagram shows the bolts installed between the support ring and the sealing body ring.

[0015] Figure 3 This is a schematic diagram of the structure of a gas-filled sealing device for the socket end of a cast iron pipe that can be used in robotic arm operations to seal the end of the cast iron pipe socket.

[0016] Figure 4 After the inflation ring is inflated Figure 3 . Detailed Implementation

[0017] See Figure 1 , Figure 2 This utility model discloses an air-filled sealing device for the spout end of a cast iron pipe used in robotic operations. It includes a fixedly connected support ring 10 and a sealing ring 20. The support ring has a support ring opening 11, and the sealing ring has an inner sealing main ring 21 and an outer air-filled expansion ring 22. An annular molded skeleton 23 is provided between the sealing main ring and the air-filled expansion ring. The molded skeleton can be made of metal, plastic, or other rigid materials. The two ends of the air-filled expansion ring are vulcanized to the two ends of the sealing main ring. A connected, sealed air intake channel 6 is provided inside the support ring 10 and the sealing main ring 21. An air inlet 7 is located on the support ring, and an air inlet 8 is located on the molded skeleton 23. A valve 9 is installed on the air inlet. When air is inflated through the valve, the air-filled expansion ring 22 expands outwards. An annular baffle 24 is fixed on the inner circumference of the sealing main ring 21 on the side away from the support ring 10. An annular support frame 25 is also provided on the inner side of the sealing main ring 21. The inner circumferential surface of the sealing main ring is glued to the outer circumferential surface of the support frame. The support frame can be a metal support frame, a plastic support frame, or a support frame made of other rigid materials. The support ring 10 and the sealing main ring 21 are fastened together by circumferentially distributed bolts 30. The inner circumferential surface of the annular molded frame 23 is glued to the outer circumferential surface of the sealing main ring 21. The sealed air intake channel 6 is equipped with sealing plugs 61 at the channel openings on the outer annular surface of the support ring 10 and the inner annular surface of the sealing main ring 21.

[0018] See also Figure 3 , Figure 4 , Figure 3This is a schematic diagram of the structure of a gas-filled sealing device for the socket end of a cast iron pipe, which can be used in robotic arm operations, for sealing the socket end of a cast iron pipe. Figure 4 After the inflation ring is inflated Figure 3 In the diagram, number 1 represents the socket end of the cast pipe, and number 2 represents the cement coating with cement as the lining fluid.

[0019] When using this invention to seal the end of a cast iron pipe socket, first push the invention into the socket of the cast iron pipe, ensuring the end face of the sealing main ring abuts against the end face of the socket. Then, pressurized air is introduced through the valve. The inflation ring expands outwards, sealing the end of the socket. At this time, a lining fluid is introduced into the cast iron pipe. Under the condition that the cast iron pipe rotates at high speed along its axis, a lining layer of a certain thickness can be formed on the inner wall of the cast iron pipe. This invention's structure can be adapted for robotic arm installation. During installation, the robotic arm is inserted into the support ring opening of the support ring to hold the invention, and then the invention is pushed into the socket of the cast iron pipe, ensuring the end face of the sealing main ring abuts against the end face of the socket. Installation is convenient, replaces manual labor, and improves installation efficiency.

[0020] It is understood that the above specific description of the present utility model is only used to illustrate the present utility model and is not limited to the technical solutions described in the embodiments of the present utility model. Any modifications or equivalent substitutions to the present utility model to achieve the same technical effect are within the protection scope of the present utility model.

Claims

1. A pneumatic plug for use in mechanical hand operations for sealing the end of a pipe spigot, characterized in that: The device includes a fixedly connected support ring (10) and a sealing ring (20). The support ring has a support ring opening (11), and the sealing ring has an inner sealing main ring (21) and an outer inflation expansion ring (22). An annular molded skeleton (23) is provided between the sealing main ring and the inflation expansion ring. The two ends of the inflation expansion ring are vulcanized with the two ends of the sealing main ring. The support ring (10) and the sealing main ring (21) have a communicating sealed air intake channel (6). The air intake hole (7) of the sealed air intake channel is opened on the support ring, and the air intake hole (8) is opened on the molded skeleton (23). The air intake hole is equipped with a valve (9). When the air is inflated through the valve, the inflation expansion ring (22) can expand outward.

2. The inflatable plug assembly for use with a robotic pipe coating application socket end of a cast pipe as defined in claim 1, wherein: An annular baffle (24) is fixed on the inner circumference of the sealing main ring (21) away from the support ring (10).

3. The air-filled sealing device for the spigot end of a cast iron pipe used in robotic arm operations as described in claim 1, characterized in that: The inner side of the sealing main ring (21) is also provided with an annular support frame (25), and the inner circumferential surface of the sealing main ring and the outer circumferential surface of the support frame are glued together.

4. The inflatable plug assembly for use with a robotic pipe coating application socket end of a cast pipe as defined in claim 1, wherein: the inflatable plug assembly further comprises a plurality of inflatable bladders; and the plurality of inflatable bladders are arranged in a circular pattern around the inflatable plug assembly. The support ring (10) and the sealing main ring (21) are fastened together by bolts (30) evenly distributed in the circumference.

5. The air-filled sealing device for the spigot end of a cast iron pipe used in robotic arm operations as described in claim 1, characterized in that: The inner circumferential surface of the ring-shaped skeleton (23) is glued to the outer circumferential surface of the sealing body ring (21).

6. The inflatable plug assembly for use with a robotic pipe coating application socket end of a cast pipe as defined in claim 1, wherein: the inflatable plug assembly further comprises a plurality of inflatable bladders, each of the plurality of inflatable bladders being connected to the inflatable plug body by a respective one of the plurality of inflatable bladder conduits. The sealed air intake channel (6) is equipped with sealing plugs (61) on the outer ring surface of the support ring (10) and the inner ring surface of the sealing main ring (21).

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