Sealing joint device for detecting air tightness of rubber tube

Abstract

The utility model provides a sealing joint device for detecting the air tightness of a rubber tube. The sealing joint device comprises a lock cap, a sealing ring, a core head and a jacking device, the core head is composed of a first core head section and a second core head section, and an annular boss is arranged between the first core head section and the second core head section. One section of the core head is inserted into the jacking device; the lock cap is composed of a first lock cap section, a second lock cap section and a third lock cap section. A sealing ring is arranged between one end face of the annular boss and the inner end face of the third lock cap section and makes contact with the inner diameter of the second lock cap section. The diameter of the second core head section is smaller than the inner diameter of the rubber pipe, and the outer diameter of the rubber pipe is smaller than the inner diameter of the sealing ring. The sealing ring is made of silica gel; the rubber tube to be detected can be clamped, the two ends of the rubber tube are sealed in a lossless mode, and it is guaranteed that the two ends of the detected rubber tube are not affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of detecting the air tightness of rubber hoses, in particular to a sealing joint device for detecting the air tightness of rubber hoses. Background Art

[0002] In industrial automation, hose sealing is crucial and requires rigorous airtightness testing. Existing techniques often involve expanding both ends of the hose and inserting them into a testing device. This expansion and deformation of the hose forces them to fit tightly against the device, achieving a seal. This irreversible damage to both ends of the hose affects subsequent use and subsequent testing. Utility Model Content

[0003] In view of the above problems, the purpose of this application is to provide a sealing joint device for detecting the air tightness of the hose, which can not only clamp the hose to be tested, but also achieve lossless sealing between the two ends of the hose and the detection device, ensuring that the two ends of the hose are not affected after testing.

[0004] In order to achieve some or all of the above-mentioned purposes or other purposes, the present application provides the following technical solutions: a sealing joint device for detecting the air tightness of a hose, comprising a locking cap, a sealing ring, a core head and a jacking device; the core head is composed of a core head section and a core head section, and an annular boss is provided between the core head section and the core head section; the core head section is inserted into the jacking device; the locking cap is composed of a locking cap section, a locking cap section and a locking cap section; the inner diameter of the locking cap section is larger than the inner diameter of the locking cap section The inner diameter of the second section of the lock cap is larger than the inner diameter of the third section of the lock cap; the second section of the lock cap is sleeved on the annular boss and the second section of the core head, and the third section of the lock cap is sleeved on the second section of the core head; a sealing ring is arranged between one end face of the annular boss and the inner end face of the third section of the lock cap, and the sealing ring contacts the inner diameter of the second section of the lock cap; a rubber hose is sleeved on the second section of the core head, the diameter of the second section of the core head is smaller than the inner diameter of the rubber hose, and the outer diameter of the rubber hose is smaller than the inner diameter of the sealing ring; the sealing ring is made of silicone.

[0005] Furthermore, it also includes a base; a groove is provided on the base, and a guide strip is provided in the groove; the jacking device is a rectangular parallelepiped, the jacking device is provided in the groove, and the jacking device is provided with a guide groove matching the groove; the base is connected to a first section of the lock cap, and the end face of the base is in contact with the other end face of the annular boss; a protruding circular ring connecting portion is provided at the connection between the base and the first section of the lock cap, and the circular ring connecting portion is connected to the first section of the lock cap through a threaded connection.

[0006] Furthermore, the core head section is connected to the jacking device through threads.

[0007] Furthermore, it also includes a cylinder; the cylinder is arranged at one end of the jacking device away from the core head.

[0008] Furthermore, a device for detecting the air tightness of the hose comprises an air inlet part and an air blocking part; the air inlet part comprises a locking cap, a sealing ring, a No. 1 core head, a No. 1 jacking device and a cylinder; a core head air vent is provided inside the No. 1 core head, and the core head air vent passes through the No. 1 core head section 1 and the No. 1 core head section 2; an air inlet matching the core head air vent is provided inside the No. 1 jacking device, and the air inlet is an L-shaped hole; the air blocking part comprises a locking cap, a sealing ring, a No. 2 core head, a No. 2 jacking device and a cylinder.

[0009] Furthermore, a method for using a sealing joint device for detecting the air tightness of a hose is as follows: put the hose on the core head, start the cylinder, and the cylinder drives the pushing device forward, driving the core head forward; the positions of the base and the locking cap remain unchanged, and the core head pushes out the locking cap; the distance between the annular boss and the three sections of the locking cap becomes smaller, causing extrusion on both ends of the sealing ring; the sealing ring bends and deforms toward the hose, and the sealing ring generates an extrusion force on the hose, thereby achieving sealing between the hose and the core head; after detecting the air tightness of the hose, the cylinder drives the pushing device backward, driving the core head backward, and the sealing ring returns to its original shape due to its own elastic properties. The sealing ring no longer has an extrusion force on the hose, and the hose joint returns to its original shape and can be easily pulled out from the core head.

[0010] Furthermore, the method for using the device for detecting the air tightness of the hose is as follows: put the joint at one end of the hose on the No. 1 core head, and put the joint at the other end of the hose on the No. 2 core head; start the cylinder, and the cylinder drives the No. 1 jacking device and the No. 2 jacking device to move forward, and drives the No. 1 core head and the No. 2 core head to move forward; the position of the base and the lock cap remains unchanged, and the core head pushes out the lock cap; the distance between the annular boss and the three sections of the lock cap becomes smaller, causing squeezing of the two ends of the sealing ring; the sealing ring bends and deforms toward the direction of the hose, and the sealing ring generates squeezing force on the hose, so that the hose is Check the sealing between the hose and the core head; delay for 3 seconds, start to take in air and sink the hose below the water level at the same time to blow air; delay for 6 seconds, observe whether there are bubbles, and complete the air tightness test; lift the hose out of the water, stop blowing air, and the cylinder drives the No. 1 and No. 2 jacking devices to move backward, and drives the No. 1 and No. 2 core heads to move backward. The sealing ring returns to its original shape due to its own elastic properties, and the sealing ring has no squeezing force on the hose. The hose joint returns to its original shape and can be easily pulled out from the core head; repeat the above test method for the next hose.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the inner diameter of the two ends of the hose is larger than the diameter of the core head of the detection device, and the detection device does not clamp the two ends of the hose by expanding and deforming the two ends of the hose; the inner diameter of the sealing ring is larger than the outer diameter of the two ends of the hose, and the two ends of the hose can be easily inserted into the core head of the detection device. The cylinder action drives the jacking device and the core head forward to achieve the squeezing of the two ends of the sealing ring. The sealing ring is made of a silicone material with a certain hardness, the ability to bend and deform toward the middle when squeezed, and has resilience; when the two ends of the sealing ring are squeezed, the outer peripheral surface of the sealing ring fits with the two sections of the locking cap and can only bend and deform in the direction of the hose; thereby achieving damage-free locking of the two ends of the hose and achieving sealing between the two ends of the hose and the detection device. After the test, the sealing ring returns to its original shape through its own elasticity and separates from the two ends of the hose. The two ends of the hose return to their original shape, and the hose is undamaged and traceless, which does not affect the subsequent use and re-testing of the hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model when the hose joint is not locked;

[0013] Figure 2 This is a schematic diagram of the structure of the utility model when locking the hose joint;

[0014] Figure 3 It is a right side view of the utility model;

[0015] Figure 4 Schematic diagram of the structure of the lock cap;

[0016] Figure 5 This is a structural diagram when the sealing ring is not deformed;

[0017] Figure 6 A schematic diagram of the structure of a core head with a core head vent hole;

[0018] Figure 7 A schematic diagram of the structure of a jacking device with an air intake hole;

[0019] Figure 8 is a structural diagram of the base;

[0020] Figure 9 This is the right side view of the base;

[0021] Figure 10 This is the overall schematic diagram after installation;

[0022] In the figure: 1. Locking cap; 1-1. Locking cap section 1; 1-2. Locking cap section 2; 1-3. Locking cap section 3; 2. Sealing ring; 3. Core head No. 1; 3-A. Core head No. 2; 3-1. Core head section 1; 3-2. Core head section 2; 3-3. Annular boss; 4. Jacking device No. 1; 4-A. Jacking device No. 2; 5. Base; 5-1. Circular ring connecting part; 5-2. Groove; 6. Cylinder joint; 7. Core head vent; 8. Air inlet; 9. Hose. DETAILED DESCRIPTION

[0023] In order to make the structure and function of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0024] See attached Figure 1-10 A sealing core head device for detecting the air tightness of a rubber hose comprises a locking cap 1, a sealing ring 2, a core head 3 and a jacking device; the core head comprises a core head section 3-1 and a core head section 2 3-2, an annular boss 3-3 is provided between the core head section 1-1 and the core head section 2 3-2; the core head section 1-1 is inserted into the jacking device; the locking cap 1 comprises a locking cap section 1-1, a locking cap section 2 1-2 and a locking cap section 3 1-3; the inner diameter of the locking cap section 1-1 is larger than the inner diameter of the locking cap section 2 1-2, the inner diameter of the locking cap section 2 1-2 is larger than the inner diameter of the locking cap section 3 1-3; the locking cap section 2 1-2 is sleeved on the annular boss 3-3 and the core head section 3-2, and the lock cap section 3-3 is sleeved on the core head section 3-2; a sealing ring 2 is arranged between one end face of the annular boss 3-3 and the inner end face of the lock cap section 3-3, and the sealing ring 2 is in contact with the inner diameter of the lock cap section 1-2; a rubber hose 9 is sleeved on the core head section 3-2, the diameter of the core head section 3-2 is smaller than the inner diameter of the rubber hose 9, and the outer diameter of the rubber hose 9 is smaller than the inner diameter of the sealing ring 2; the sealing ring 2 is made of silicone; the sealing ring 2 is made of silicone with a certain hardness, the ability to bend towards the middle when squeezed, and resilience.

[0025] It also includes a base 5; a groove 5-2 is provided on the base 5, and a guide strip is provided in the groove 5-2; the jacking device is a rectangular parallelepiped, and the jacking device is provided in the groove 5-2, and the jacking device is provided with a guide groove matching the groove; the base 5 is connected to the lock cap section 1-1, and the end face of the base 5 is in contact with the other end face of the annular boss 3-3; a protruding circular connecting portion 5-1 is provided at the connection between the base 5 and the lock cap section 1-1, and the circular connecting portion 5-1 is connected to the lock cap section 1-1 by a thread; the jacking device can move back and forth in the groove 5-2 of the base 5.

[0026] The core head section 3 - 1 is connected to the jacking device through a thread; the base 5 and the lock cap 1 are fixedly connected, and the jacking device drives the core head 3 to move in the lock cap 1.

[0027] It also includes a cylinder; the cylinder joint portion 6 of the cylinder is arranged at one end of the jacking device away from the core head 3; the jacking device can also be moved forward by manual operation.

[0028] A device for detecting the air tightness of a hose comprises an air intake portion and an air blocking portion; the air intake portion comprises a locking cap 1, a sealing ring 2, a No. 1 core head 3, a No. 1 jacking device 4 and a cylinder; a core head air vent 7 is arranged inside the No. 1 core head 3, and the core head air vent 7 passes through the No. 1 core head section 1 3-1 and the No. 1 core head section 2 3-2; an air intake hole 8 matching the core head air vent 7 is arranged inside the No. 1 jacking device 4, and the air intake hole 8 is an L-shaped hole; the air blocking portion comprises a locking cap 1, a sealing ring 2, a No. 2 core head 3-A, a No. 2 jacking device 4-A and a cylinder; the air intake portion is responsible for air intake, and the air blocking portion is responsible for air blocking, and the two cooperate to realize the detection of the air tightness of the hose 9.

[0029] A method for using a sealing core head device for detecting the air tightness of a hose is as follows: put the hose 9 on the core head 3, start the cylinder, and the cylinder joint part 6 drives the jacking device to move forward, driving the core head 3 to move forward; the positions of the base 5 and the locking cap 1 remain unchanged, and the core head 3 pushes out the locking cap 1; the distance between the annular boss 3-3 and the three sections 1-3 of the locking cap becomes smaller, causing squeezing of the two ends of the sealing ring 2; the sealing ring 2 bends and deforms toward the hose 9, and the sealing ring 2 generates an extrusion force on the hose 9, thereby achieving sealing between the hose 9 and the core head 3; after detecting the air tightness of the hose 9, the elastic properties of the sealing ring 2 itself push the core head 3 and the jacking device to move backward, and the sealing ring 2 returns to its original state, and the sealing ring 2 no longer has an extrusion force on the hose 9. The core head 3 of the hose 9 returns to its original state and can be easily pulled out from the core head 3.

[0030] The method of using the device for detecting the air tightness of the hose is as follows: put the joint at one end of the hose 9 on the No. 1 core head 3, and put the joint at the other end of the hose 9 on the No. 2 core head 3-A; start the cylinder, and the cylinder joint part 6 drives the No. 1 jacking device and the No. 2 jacking device to move forward, and drives the No. 1 core head 3 and the No. 2 core head 3-A to move forward; the position of the base and the locking cap remains unchanged, and the core head pushes out the locking cap; the distance between the annular boss and the three sections of the locking cap becomes smaller, causing squeezing of the two ends of the sealing ring; the sealing ring bends and deforms toward the direction of the hose 9, and the sealing ring generates squeezing force on the hose 9, so that the hose 9 is The sealing between the hose 9 and the core head; delay for 3 seconds, start to take in air and sink the hose 9 to below the water level at the same time for blowing; delay for 6 seconds, observe whether there are bubbles, and complete the air tightness test; lift the hose 9 out of the water, stop blowing, and the cylinder joint 6 drives the No. 1 jacking device and the No. 2 jacking device to move backward, and drives the No. 1 core head and the No. 2 core head to move backward. The sealing ring returns to its original shape due to its own elastic properties, and the sealing ring has no squeezing pressure on the hose 9. The hose 9 joint returns to its original shape and can be easily pulled out from the core head; repeat the above method for the next hose 9.

[0031] The above disclosure is only a preferred embodiment of the present application, and certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A sealing joint device for detecting the air tightness of a hose, characterized by: It includes a locking cap, a sealing ring, a core head and a jacking device; the core head consists of a core head section and a core head section, and an annular boss is arranged between the core head section and the core head section; the core head section is inserted into the jacking device; the locking cap consists of a lock cap section, a lock cap section and a lock cap section; the inner diameter of the lock cap section one is larger than the inner diameter of the lock cap section two, and the inner diameter of the lock cap section two is larger than the inner diameter of the lock cap section three; the lock cap section two is sleeved on the annular boss and the core head section two, and the lock cap section three is sleeved on the core head section two; a sealing ring is arranged between one end face of the annular boss and the inner end face of the lock cap section three, and the sealing ring is in contact with the inner diameter of the lock cap section two; a rubber hose is sleeved on the core head section two, the diameter of the core head section two is smaller than the inner diameter of the rubber hose, and the outer diameter of the rubber hose is smaller than the inner diameter of the sealing ring; the sealing ring is made of silicone.

2. A sealing joint device for detecting air tightness of a hose according to claim 1, characterized in that: It also includes a base; a groove is provided on the base, and a guide strip is provided in the groove; the jacking device is a rectangular parallelepiped, the jacking device is provided in the groove, and the jacking device is provided with a guide groove matching the groove; the base is connected to one end of the lock cap, and the end face of the base is in contact with the other end face of the annular boss.

3. The sealing joint device for detecting the air tightness of a hose according to claim 1, characterized in that: The core head section is connected to the jacking device through threads.

4. The sealing joint device for detecting the air tightness of a hose according to claim 1, characterized in that: It also includes a cylinder; the cylinder is arranged at one end of the jacking device away from the core head.

5. The sealing joint device for detecting the air tightness of a hose according to claim 4, characterized in that: It includes an air intake part and an air blocking part; the air intake part includes a locking cap, a sealing ring, a No. 1 core head, a No. 1 jacking device and a cylinder; a core head air vent is arranged inside the No. 1 core head, and the core head air vent passes through the No. 1 core head section and the No. 1 core head section; an air intake hole matching the core head air vent is arranged inside the No. 1 jacking device, and the air intake hole is an L-shaped hole; the air blocking part includes a locking cap, a sealing ring, a No. 2 core head, a No. 2 jacking device and a cylinder.

Images