Efficient depoling combination device and gas connection structure

Abstract

The invention provides an efficient depoling combination device and a gas connecting structure, and belongs to the technical field of rubber tube manufacturing, a tire core is of a hollow tubular structure with two sealed ends, an external thread a is arranged at one end of the tire core, and at least one groove a is formed in the external thread; the tire core is in threaded connection with a connector, and an internal thread a is arranged at the end of the connector and is in threaded connection with the tire core; the groove a extends in the axial direction of the tire core, and the depth of the groove a is larger than the tooth height of the external thread a; the end part of the tire core is provided with the external thread, the connector is provided with the internal thread, and a gap is formed between the end part of the tire core and the rubber tube, so that compressed air is easier to rush between the tire core and the rubber tube, and the tire core and the rubber tube are separated from each other. A groove a is formed in the external thread of the tire core, and the depth of the groove a is larger than the tooth height of the external thread, so that the groove a forms a ventilation channel, and compressed air can flow along the groove a21 and enter the space between the tire core and the rubber tube to separate the tire core from the rubber tube; and the inflation plug is firmly connected with the tire core while the inflation effect is not influenced, so that the safety is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of rubber tube manufacturing, and in particular relates to a highly efficient core-removing combined device and a gas connection structure. Background Art

[0002] Rubber hoses can be produced by the hard core method, especially large-diameter rubber hoses. Stainless steel tubes are required in the hard core method. The general stainless steel tube consists of a tube core with a seal at one end and an internal thread at the other end and a connector with an external thread. The tube core and the connector are connected by threads to form an integrated tube. The rubber sheet and the water cloth are wound around the tube in turn and vulcanized. After the vulcanization is completed, the water cloth is removed and the core is removed to obtain a formed rubber hose. In the core removal operation, the connector is generally rotated and pulled out first, and the inflation tube is inserted into the end of the hose. The hose end and the inflation tube end are connected airtightly with a steel wire or a clamp. Compressed air is passed into the hose through the inflation tube. After the tire core is filled, the compressed gas enters between the hose and the tire core, and the hose expands radially. The two are separated from each other. The tire core is pulled out from the other end by a traction machine, and the core removal is completed. However, the existing tire core end is provided with an internal thread, and there is no gap between the hollow tube wall and the hose, which makes it difficult for compressed air to enter between the hose and the tire core, resulting in slow separation speed and low work efficiency; even if the compressed air can enter between the hose and the tire core, it requires a lot of pressure to rush into between the hose and the tire core. Excessive pressure can easily cause the inflation tube to detach from the hose end, causing the clamp fixation to fail; in addition, the tire core of the tubular tire is a hollow tube, and the compressed air first fills the tire core and then enters between the hose and the tire core, which wastes a lot of compressed air and causes energy waste. Summary of the invention

[0003] The existing tire core end is provided with an internal thread, and there is no gap between the hollow tube wall and the rubber hose, which makes it difficult for compressed air to enter between the rubber hose and the tire core, resulting in slow disengagement speed and low work efficiency; even if the compressed air can enter between the rubber hose and the tire core, it requires a large pressure to rush into the space between the rubber hose and the tire core. Excessive pressure can easily cause the inflation tube to detach from the end of the rubber hose, causing the clamp fixation to fail; the tire core of the tubular tire is a hollow tube, and the compressed air first fills the tire core and then enters between the rubber hose and the tire core, wasting a large amount of compressed air and causing energy waste; In order to solve the above problems, an efficient core removal assembly device and a gas connection structure are provided.

[0004] The present invention is achieved in the following manner: An efficient core-removing assembly device comprises a tire core, which is a hollow tubular structure sealed at both ends. An external thread a is arranged at one end of the tire core, and at least one groove a is arranged on the external thread; a connector is threadedly connected to the tire core, and an internal thread a is arranged at the end of the connector, which is threadedly connected to the tire core; the groove a extends along the axial direction of the tire core, and the depth of the groove a is greater than the tooth height of the external thread a.

[0005] The grooves a are evenly distributed on the external threads a of the tire core.

[0006] The outer diameter of the connector is equal to the outer diameter of the tire core, the length of the internal thread a of the connector is greater than or equal to the length of the external thread a of the tire core, the connector is provided with at least one axial inflation channel a, and a connecting thread is provided at one end of the inflation channel a away from the internal thread a to form an inflation plug.

[0007] The outer diameter of the connector is greater than or equal to the outer diameter of the tire core.

[0008] A gas connection structure matched with the above-mentioned tubular tire that is easy to remove the core, the gas connection structure includes an inflation plug, the inflation plug is a barrel-shaped cavity, the side wall of the inflation plug is provided with an internal thread b connected to the tire core, the length of the internal thread b is less than the length of the external thread a on the tire core, so that a ventilation loop b is formed between the inflation plug and the tire core, and an air storage chamber is formed between the bottom of the barrel-shaped cavity and the internal thread; the bottom of the barrel-shaped cavity is provided with an inflation inlet.

[0009] There is at least one inflation inlet.

[0010] There are two inflation inlets.

[0011] Compared with the prior art, the present invention sets the end of the tire core as an external thread, the connector as an internal thread, and forms a gap between the end of the tire core and the rubber hose, so that compressed air can more easily rush into the space between the tire core and the rubber hose, so that the two are separated from each other. A groove a is set on the external thread of the tire core, and the depth of the groove a is greater than the tooth height of the external thread, so that the groove a forms a ventilation channel, which allows the compressed air to flow along the groove a21 and enter the space between the tire core and the rubber hose, so that the two are separated from each other; while not affecting the inflation effect, the inflation plug is firmly connected to the tire core, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is an exploded view of a tubular tire of the present invention.

[0013] Figure 2 yes Figure 1 Cross-section view at the middle BB.

[0014] Figure 3 It is a schematic diagram of a tubular tire of the present invention.

[0015] Figure 4 It is a working status diagram of an embodiment of the present invention.

[0016] Figure 5 It is a structural schematic diagram of the inflation plug of the present invention.

[0017] Figure 6 It is a schematic diagram of the combination state of the inflation plug and the tire core of the present invention.

[0018] Figure 7 yes Figure 6 A partial enlarged view of point A in the middle.

[0019] Among them, the tubular tire 1; tire core 2; groove a21; external thread a22; connector 3; internal thread a31; inflation channel a32; ventilation ring a33; hose 4; inflation plug 5; internal thread b50; inflation inlet 51; ventilation ring b52; handle 53. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with specific examples, and the advantages and features of the present invention will become clearer as the description proceeds. However, the specific experimental methods involved in the following examples are all conventional methods or implemented under the conditions recommended by the manufacturer's instructions unless otherwise specified.

[0021] An efficient core-removing assembly device comprises a tire core 2, wherein the tire core 2 is a hollow tubular structure sealed at both ends. Both ends of the tire core are sealed, and compressed air does not need to enter the tire core, but can directly act between the tire core wall and the hose, thereby saving compressed air, energy and materials; an external thread a22 is arranged at one end of the tire core 2, and at least one groove a21 is arranged on the external thread; the tire core 2 is threadedly connected to a connector 3, and an internal thread a31 is arranged at the end of the connector 3, which is threadedly connected to the tire core; the groove a21 extends along the axial direction of the tire core 2, and the depth of the groove a21 is greater than the tooth height of the external thread a22. The connector 3 is threadedly connected to the tire core 2, and the film and the water cloth are tightly wound along the outer surface of the tube tire in sequence. After vulcanization, the film forms a hose, and there is no gap between the hose and the tube tire 1. After removing the water cloth and the connector, since the end of the tire core is set as an external thread and the connector is an internal thread, after removing the connector, a gap appears between the end of the tire core and the hose, and the reserved space makes it easier for compressed air to rush into the tire core and the hose, so that the two are separated from each other. The depth of the groove a21 is greater than the tooth height of the external thread a22, and an inflation channel a is formed on the external thread a22, so that the compressed air can flow along the groove a21. The depth of the groove a21 is less than the depth of the external thread chamfer a22, and the width of the groove a21 is greater than or equal to 1 / 10 of the inner diameter of the tire core and less than or equal to 1 / 4 of the inner diameter of the tire core, ensuring smooth flow of gas in the groove a21.

[0022] The grooves a21 are evenly distributed on the external threads a22 of the tire core 2 to ensure that the intervals between any two grooves a are equal.

[0023] In one embodiment, the outer diameter of the connector 3 is equal to the outer diameter of the tire core 2, the length of the internal thread a31 of the connector 3 is greater than or equal to the length of the external thread a22 of the tire core 2, the connector 3 is provided with at least one axial inflation channel a32, and a connecting thread is provided at one end of the inflation channel a32 away from the internal thread a31 to form an inflation plug.

[0024] A steel wire or a clamp is arranged on the outer surface of the hose end, and the steel wire or the clamp presses the hose end onto the connector 3 to make the two airtightly connected to prevent the compressed gas from escaping from between the hose end and the connector.

[0025] Working process: The tire core 2 and the connector 3 are connected by threads to form a tubular tire 1. The rubber sheet and the water cloth are wound on the surface of the tubular tire 1 in sequence. The water cloth is removed after vulcanization. The rubber sheet becomes an integrated rubber tube 4. The connector 3 is screwed out partially to keep the tire core 2 and the connector 3 threadedly connected. An annular channel a33 is formed between the tire core 2 and the connector 3, and a cavity appears between the end faces of the tire core 2 and the connector 3. The end of the rubber tube is pressed onto the outer wall of the connector 3 by a steel wire or a clamp to make the two connected airtightly. The other end of the tire core 2 is connected to the traction machine. The inflation channel a32 is away from the inner One end of the thread a31 is threadedly connected to one end of the inflation tube, and the other end is connected to the air tank and the screw air compressor. The inflation valve is opened, and the compressed gas passes through the inflation tube 7 and enters the inflation channel a32, and enters the cavity between the tire core 2 and the connector 3 through the inflation channel a32, and then enters the annular channel a33 through the groove a21, and is filled between the tire core 2 and the hose 4. When the tire core 2 moves to the other end under the impact of compressed gas, the inflation switch is turned off, the connector is removed, and the tire core 2 is pulled out under the external force of the traction machine to obtain a complete hose.

[0026] In another embodiment, the structure is the same as the above embodiment, except that: the outer diameter of the connector 3 is greater than or equal to the outer diameter of the tire core 2, so that the gap between the end of the tire core and the hose is larger. A gas connection structure matching the above efficient core removal assembly device is provided, the gas connection structure includes an inflation plug, the inflation plug 5 is a barrel-shaped cavity, the side wall of the inflation plug 5 is provided with an internal thread b50 connected to the tire core 2, the length of the internal thread b50 is less than the length of the external thread a22 on the tire core, so that a ventilation loop b52 is formed between the inflation plug 5 and the tire core 2, and a gas storage compartment is formed between the bottom of the barrel-shaped cavity and the internal thread; the bottom of the barrel-shaped cavity is provided with an inflation inlet 51. The inflation plug 5 is inserted between the tire core 2 and the hose 4 to pass the compressed gas between the tire core 2 and the hose 4.

[0027] There is at least one inflation inlet 51 .

[0028] There are two air inlets 51 .

[0029] A handle 53 is disposed at the bottom center of the inflation plug 5 , and the handle 53 is configured as an elongated rectangular parallelepiped.

[0030] A steel wire or a clamp is arranged on the outer surface of the hose end, and the steel wire or the clamp presses the hose end onto the inflation plug 5 to make the two airtightly connected to prevent the compressed gas from escaping from between the hose end and the inflation plug 5 .

[0031] Working process: The tire core 2 and the connector 3 are connected by threads to form a tubular tire 1. The rubber film and the water cloth are wound on the surface of the tubular tire 1 in sequence. The water cloth is removed after vulcanization. The rubber film becomes an integrated hose 4. The connector 3 is unscrewed to form a gap between the tire core 2 and the hose 4. The inflation plug 5 is inserted between the tire core 2 and the hose 4. The inflation plug 5 is a barrel-shaped cavity. The side wall of the inflation plug 5 is provided with an internal thread b50 connected to the tire core 2. The length of the internal thread b50 is less than the length of the external thread a22 on the tire core, so that a ventilation loop b52 is formed between the inflation plug 5 and the tire core 2, and an air storage compartment is formed between the bottom of the barrel-shaped cavity and the internal thread; the barrel-shaped cavity An inflation inlet 51 is provided at the bottom of the barrel; the upper end of the hose is pressed onto the outer wall of the inflation plug 5 by a steel wire or a clamp to make the two airtightly connected; the other end of the tire core 2 is connected to the traction machine; one end of the inflation tube is threadedly connected to the inflation inlet 51, and the other end is connected to the air storage tank and the screw air compressor, and the inflation valve is opened. The compressed gas enters the air storage compartment through the inflation tube and the inflation inlet, and is filled into the space between the tire core 2 and the hose 4 through the inflation channel a and the ventilation ring channel. When the tire core 2 moves to the other end under the impact of the compressed gas, the inflation switch is turned off, the inflation plug is removed, and the tire core 2 is pulled out under the external force of the traction machine to obtain a complete hose.

[0032] Compared with the prior art, the present invention sets the end of the tire core as an external thread, the connector as an internal thread, and forms a gap between the end of the tire core and the rubber hose, so that compressed air can more easily rush into the space between the tire core and the rubber hose, so that the two are separated from each other. A groove a is set on the external thread of the tire core, and the depth of the groove a is greater than the tooth height of the external thread, so that the groove a forms a ventilation channel, which allows the compressed air to flow along the groove a21 and enter the space between the tire core and the rubber hose, so that the two are separated from each other; while not affecting the inflation effect, the inflation plug is firmly connected to the tire core, thereby improving safety.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, which should also be regarded as the scope of protection of the present invention.

Claims

1. An efficient core stripping assembly device, comprising a tire core (2), characterized in that: The tire core (2) is a hollow tubular structure with sealed ends; one end of the tire core (2) is provided with an external thread a (22), and at least one groove a (21) is provided on the external thread; the tire core (2) is threadedly connected to a connector (3), and an end of the connector (3) is provided with an internal thread a (31) which is threadedly connected to the tire core; the groove a (21) extends along the axial direction of the tire core (2), and the depth of the groove a (21) is greater than the tooth height of the external thread a (22).

2. An efficient core stripping assembly device as claimed in claim 1, characterized in that: The grooves a (21) are evenly distributed on the external threads a (22) of the tire core (2).

3. An efficient core stripping assembly device as described in any one of claims 1 or 2, characterized in that: The outer diameter of the connector (3) is equal to the outer diameter of the tire core (2); the length of the internal thread a (31) of the connector (3) is greater than or equal to the length of the external thread a (22) of the tire core (2); the connector (3) is provided with at least one axial inflation channel a (32); and a connecting thread is provided at one end of the inflation channel a (32) away from the internal thread a (31) to form an inflation plug.

4. An efficient core stripping assembly as described in any one of claims 1 or 2, characterized in that: The outer diameter of the connecting head (3) is greater than or equal to the outer diameter of the tire core (2).

5. A gas connection structure matching an efficient core stripping assembly device according to any one of claims 1, 2 or 4, characterized in that: The gas connection structure comprises an inflatable plug (5), the inflatable plug (5) being a barrel-shaped cavity, the side wall of the inflatable plug (5) being provided with an internal thread b (50) connected to the tire core (2), the length of the internal thread b (50) being less than the length of the external thread a (22) on the tire core, so that a ventilation loop b (52) is formed between the inflatable plug (5) and the tire core (2), and a gas storage chamber is formed between the bottom of the barrel-shaped cavity and the internal thread; and the bottom of the barrel-shaped cavity is provided with an inflatable inlet (51).

6. The inflatable plug according to claim 5, characterized in that: There is at least one inflation inlet (51).

7. The inflatable plug according to claim 6, characterized in that: There are two inflation inlets (51).

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