Tube tire easy to depoling

Abstract

The utility model provides a tube tire easy to depoling, which belongs to the technical field of rubber tube manufacturing and comprises a tire core, the tire core is of a hollow tubular structure with two sealed ends, one end of the tire core is provided with an external thread a, the tire core is in threaded connection with a connector, the end of the connector is provided with an internal thread a, and the internal thread is provided with a groove b; the groove b extends in the axial direction of the connector, and the depth of the groove b is larger than the tooth height of the internal thread a, so that the groove b forms a ventilation channel, and compressed air can flow along the groove b and enter the position between the tire core and the rubber pipe to separate the tire core from the rubber pipe; 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] This utility model belongs to the field of rubber hose manufacturing technology, specifically relating to a tube tire that is easy to remove the core from. Background Technology

[0002] Rubber hoses can be produced using the hard core method, especially large-diameter rubber hoses. The hard core method requires the use of a stainless steel tubing. A typical stainless steel tubing consists of a core that is sealed at one end and has internal threads at the other end, and a connector with external threads. The core and connector are connected by threads to form a tubing with an integral structure. The rubber sheet and water-repellent cloth are wound onto the tubing in sequence and vulcanized. After vulcanization, the water-repellent cloth is removed, the core is removed, and the formed rubber hose is obtained.

[0003] In the core removal process, the connector is typically rotated out first, and the inflation hose is inserted into the end of the tubing. A steel wire or clamp is used to airtightly connect the ends of the tubing and the inflation hose. Compressed air is then introduced into the tubing through the inflation hose, filling the core. Compressed air then enters the space between the tubing and the core, causing the tubing to expand radially and separating the two. A traction machine is then used to pull the core out from the other end, completing the core removal. However, existing cores have internal threads at the end, and the hollow tube wall has no gap between it and the tubing, making it difficult for compressed air to enter the space between the tubing and the core, resulting in slow removal speed and low efficiency. Even if compressed air can enter the space between the tubing and the core, a large pressure is required. Excessive pressure can cause the inflation hose to detach from the end of the tubing, causing the clamp to fail. Furthermore, the core of tubular tires is a hollow tube; compressed air fills the core first before entering the space between the tubing and the core, wasting a significant amount of compressed air and energy. Utility Model Content

[0004] Existing tubular tires have internal threads at the end, and there is no gap between the hollow tube wall and the hose, making it difficult for compressed air to enter between the hose and the tire core. This results in slow release speed and low work efficiency. Even if compressed air can enter between the hose and the tire core, a large pressure is required to force it in. Excessive pressure can easily cause the inflation tube to detach from the end of the hose, causing the clamp to fail. The tube tire core of the tubular tire is a hollow tube, and compressed air must first fill the tire core before entering between the hose and the tire core, wasting a lot of compressed air and energy. To solve the above problems, a tubular tire with an easy-to-release core and an inflation plug is provided.

[0005] This utility model is achieved in the following manner:

[0006] A tubular tire that is easy to remove the core includes a tire core, the tire core being a hollow tubular structure sealed at both ends, one end of the tire core being provided with an external thread a, the tire core being threadedly connected to a connector, the end of the connector being provided with an internal thread a, the internal thread a being provided with a groove b; the groove b extending along the axial direction of the connector, the depth of the groove b being greater than the tooth height of the internal thread a.

[0007] The grooves b are evenly distributed on the external threads a of the tire core.

[0008] 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, and the connector is provided with at least one axial inflation channel a. The end of the inflation channel a away from the internal thread a is provided with a connecting thread to form an inflation plug.

[0009] Compared to existing technologies, this invention features an external thread at the end of the tire core and an internal thread at the connector, creating a gap between the tire core end and the hose. This allows compressed air to more easily enter between the tire core and the hose, causing them to separate. A groove b is provided on the internal thread of the connector, with a depth greater than the thread height. This groove b forms an air passage, allowing compressed air to flow along it and enter between the tire core and the hose, further separating them. This design ensures a secure connection between the inflation plug and the tire core without affecting inflation performance, thus improving safety. Attached Figure Description

[0010] Figure 1 This is an exploded view of the tubular tire of this utility model.

[0011] Figure 2 This is a cross-sectional view of the connector.

[0012] Figure 3 This is a schematic diagram of the tubular tire connection of this utility model.

[0013] Figure 4 This is a diagram showing the working state of this utility model.

[0014] Among them, tubular tire 1; tire core 2; external thread a22; connector 3; internal thread a30; groove b31; inflation channel a32; ventilation ring a33; rubber hose 4. Detailed Implementation

[0015] The present invention will be further described below with reference to specific embodiments, and the advantages and features of the present invention will become clearer with the description. However, unless otherwise specified, the specific experimental methods involved in the following embodiments are conventional methods or implemented according to the conditions recommended in the manufacturer's instructions.

[0016] A tubular tire with easy core removal includes a core 2, which is a hollow tubular structure sealed at both ends. Since both ends of the core are sealed, compressed air does not need to enter the core and can act directly between the core wall and the tubing, saving compressed air, energy, and materials. One end of the core 2 is provided with an external thread a22, and the core 2 is threadedly connected to a connector 3. The end of the connector 3 is provided with an internal thread a31, and the core 2 is threadedly connected to the connector 3. The end of the connector 3 is provided with an internal thread a30, and a groove b31 is provided on the internal thread a31. The groove b31 extends along the axial direction of the connector 3, and the depth of the groove b31 is greater than the tooth height of the internal thread a30. Connector 3 is threaded to tire core 2. The rubber sheet and water-absorbing cloth are tightly wound along the outer surface of the tubular tire. After vulcanization, the rubber sheet forms a tubular tube, with no gap between the tube and the tubular tire 1. After removing the water-absorbing cloth and connector, a gap appears between the tire core end and the tubular tube due to the external thread at the tire core end and the internal thread at the connector. This reserved space allows compressed air to more easily enter between the tire core and the tubular tube, causing them to separate. The depth of groove b31 is greater than the tooth height of internal thread a30. An inflation channel is formed on the internal thread, allowing compressed air to flow along groove b31. The width of groove b31 is greater than or equal to 1 / 10 of the tire core's inner diameter and less than or equal to 1 / 4 of the tire core's inner diameter, ensuring smooth airflow within groove b31.

[0017] The grooves b31 are evenly distributed on the external thread a22 of the tire core 2, ensuring that the interval between any two grooves is equal.

[0018] The outer diameter of the connector 3 is equal to the outer diameter of the tire core 2. The length of the internal thread a30 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. The end of the inflation channel a32 away from the internal thread a30 is provided with a connecting thread to form an inflation plug.

[0019] A steel wire or clamp is installed on the outer surface of the hose end. The steel wire or clamp presses the hose end onto the connector 3 to make the two airtightly connected and prevent compressed gas from leaking out from between the hose end and the connector.

[0020] Work process:

[0021] Tire core 2 and connector 3 are connected by threads to form tubular tire 1. A rubber sheet and a water-repellent cloth are sequentially wrapped around the surface of tubular tire 1. After vulcanization, the water-repellent cloth is removed, leaving the rubber sheet as a single tubular tube 4. Connector 3 is partially unscrewed, maintaining the threaded connection between tire core 2 and connector 3. An annular channel a33 is formed between tire core 2 and connector 3, creating a cavity between their end faces. Due to the groove b on the internal thread of connector 3, the external thread of tire core 2 and the internal thread of connector 3 form an inflation channel. The end of the tubular tube is pressed against the outer wall of connector 3 using a steel wire or clamp to ensure an airtight connection. Tire core 2... The other end is connected to the traction machine; the end of the inflation channel a32 away from the internal thread a30 is threaded to one end of the inflation tube, and the other end is connected to the air tank and screw air compressor. When the inflation valve is opened, the compressed gas passes through the inflation tube 7 and enters the inflation channel a32. It then enters the cavity between the tire core 2 and the connector 3 through the inflation channel a32, and enters the annular channel a33 through the groove b31. It is filled between the tire core 2 and the rubber hose 4. When the tire core 2 moves to the other end under the impact of the compressed gas, the inflation switch is closed, the connector is removed, and the tire core 2 is pulled out under the external force of the traction machine to obtain the complete rubber hose.

[0022] Compared to existing technologies, this invention features an external thread at the end of the tire core and an internal thread at the connector, creating a gap between the tire core end and the tubing. This allows compressed air to more easily enter between the tire core and the tubing, detaching them from each other. A groove b is provided on the internal thread of the connector, with a depth greater than the thread height. This groove b forms an air passage, allowing compressed air to flow along it and enter between the tire core and the tubing, detaching them from each other. This design ensures a secure connection between the inflation plug and the tire core without affecting inflation performance, thus improving safety.

[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. A tubular tire with an easily detachable core, comprising a tire core (2), characterized in that: The tire core (2) is a hollow tubular structure sealed at both ends. One end of the tire core (2) is provided with an external thread a (22). The tire core (2) is threadedly connected to a connector (3). The end of the connector (3) is provided with an internal thread a (30). A groove b (31) is provided on the internal thread a (30). The groove b (31) extends along the axial direction of the connector (3). The depth of the groove b (31) is greater than the tooth height of the internal thread a (30).

2. The tubular tire with easy core removal as described in claim 1, characterized in that: The groove b (31) is evenly distributed on the external thread a (22) of the tire core (2).

3. A tubular tire that is easy to remove the core as described in claim 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 (30) 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). The end of the inflation channel a (32) away from the internal thread a (30) is provided with a connecting thread to form an inflation plug.

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