CN204267940U - A kind of PVC hose connection set - Google Patents

Abstract

The utility model discloses a PVC hose connection device, which relates to the field of pipe connection devices, and solves the problems in the prior art that the hose connection device has poor sealing performance, complex implementation process and narrow application range, and includes an inner support ring, a soft The tube and the outer pressure ring, the inner support ring is set inside the hose, the outer pressure ring is set outside the hose, and the surface of the inner support ring is sequentially provided with a blocking plate, a groove-shaped concave portion, and a convex pointing upward along the vertical axis along the horizontal axis. There are several support frames inside the inner support ring, and the inside of the outer pressure ring is sequentially provided with convex parts along the horizontal axis direction and reverse convex teeth pointing downward along the vertical axis. The utility model has the advantages that several trapezoidal support frames are added inside the inner support ring to reduce the pressure it is subjected to, and avoid the gap between the inner support ring and the hose, thereby causing gas leakage. The protruding teeth prevent the hose from slipping off. The utility model has high practical value and can be widely used in the field of pipe connecting devices.

Description

A PVC hose connection device

technical field

The utility model relates to a pipe connection device, in particular to a PVC hose connection device.

Background technique

Goal frames in sports, such as football goal frames, water polo goal frames, etc., are generally made of wood, light metal or composite materials, but this kind of goal is not easy to install, dismantle, store and transport, and in games or training Players will inevitably collide with the goal. Since most of the goal frames on the market are hard structures, it is easy to cause great damage to the player's body. Therefore, the material of the goal frame is improved. At present, the material of the goal frame can be made of plastic pipes. The inflatable goal frame of PVC hose can also be used. Among them, the inflatable goal frame of PVC hose is limited in scope of application due to the complexity of the connection device at the interface, insufficient air tightness, and poor sealing. Where, the connection device is improved accordingly, so that it is widely applicable to the inflatable goal frame of the PVC hose.

Contents of the invention

The utility model discloses a PVC hose connection device, which is used to solve the problems of poor sealing performance, complex implementation process and narrow application range of the hose connection device in the prior art.

The utility model is achieved through the following technical solutions:

A PVC hose connection device, comprising an inner support ring, a hose and an outer pressure ring, the inner support ring is arranged inside the hose, and the outer pressure ring is arranged outside the hose to tightly press the hose so that the hose It can fit closely with the inner support ring, and the surface of the inner support ring is sequentially provided with a blocking plate, a groove-shaped concave portion, and convex teeth pointing upwards along the vertical axis along the horizontal axis, and a round hole is provided in the inner center of the inner support ring , a number of support frames are evenly distributed along the circumferential direction of the circular hole, and the inside of the outer pressure ring is provided with convex parts along the horizontal axis direction and reverse convex teeth pointing downward along the vertical axis in sequence.

The hose is a PVC hose.

The inner support ring is cylindrical.

The cross-section of the support frame is trapezoidal, and the support frame is integrated with the inner support ring.

The outer pressure ring is made of expandable material.

The depth and length of the groove-shaped concave portion on the surface of the inner support ring are consistent with the convex portion inside the outer pressure ring.

The protruding teeth on the surface of the inner supporting ring engage with the opposite protruding teeth on the inside of the outer pressure ring.

Compared with the prior art, the beneficial effects of the utility model are:

1. Press the outer pressure ring by mechanical force so that when the hose is stuck between the inner support ring and the outer pressure ring, the outer pressure ring will generate a large radial pressure on the inner support ring. Several support frames, and the support frame and the inner support ring are integrated, which can effectively transmit the radial pressure to each support frame evenly, expand the single stress point to a large range of force surface, and reduce the inner support ring. The pressure on the surface prevents the deformation of the inner support ring due to the pressure, thereby avoiding the gap between the inner support ring and the hose, resulting in gas leakage, and also avoids the deformation and damage of the inner support ring;

2. When the outer pressure ring is sleeved on the surface of the hose and the hose is sleeved on the surface of the inner support ring, the outer pressure ring is pressed by mechanical force, so that the outer pressure ring generates radial pressure, and then the convex part of the outer pressure ring is in contact with the surface of the inner support ring. The groove-shaped recesses of the inner support ring engage with each other, and at the same time, the reverse convex teeth of the outer pressure ring engage with the convex teeth of the inner support ring, which prevents the hose from slipping from the connector and enhances the sealing performance;

3. Since the outer pressure ring is made of expandable material, it has high plasticity. When it is squeezed by mechanical force, the outer pressure ring will expand and generate radial pressure on the inner support ring, which is convenient for the tight connection between the hose and the inner support ring. , and due to the characteristics of the material of the outer pressure ring, its net diameter can be adjusted according to the thickness of the hose, which can match PVC hoses with different wall thicknesses, expanding its scope of application;

4. The utility model has high practical value and can be widely used in the field of connecting devices.

Description of drawings

Fig. 1 is the installation diagram of the utility model.

Fig. 2 is an enlarged view of A-A in Fig. 1 .

Fig. 3 is a sectional view of the inner support ring of the present invention.

In the figure: 1. inner support ring; 2. hose; 3. outer pressure ring; 4. support frame; 11. blocking plate; Convex teeth.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

A PVC hose connection device, including an inner support ring 1, a hose 2 and an outer pressure ring 3, the inner support ring 1 is placed inside the hose 2, and the outer pressure ring 3 is arranged outside the hose 2, tightly Press the hose 2 so that the hose 2 can fit closely with the inner support ring 1. The surface of the inner support ring 1 is sequentially provided with a blocking plate 11, a groove-shaped concave portion 12, and a convex pointing upward along the vertical axis. Teeth 13, the inner center of the inner support ring 1 is provided with a round hole, and a number of support frames 4 are evenly distributed along the circumferential direction of the round hole, and the inside of the outer pressure ring 3 is sequentially provided with convex parts 31 along the horizontal axis. The reverse lobe 32 with the vertical axis pointing downwards.

The inner support ring 1 is inserted into the hose 2, the hose 2 is inserted into the outer pressure ring 3, and the outer pressure ring 3 is extended to the axial direction of the inner support ring 1 to the blocking plate 11 by pressing the external force, and the inner support ring passes through the The hose squeezes the outer pressure ring 3 outwards, causing it to deform in the radial direction, and then makes the groove-shaped concave portion 12 on the surface of the inner support ring 1 engage with the convex portion 31 inside the outer pressure ring 3, and the inner support ring 1 The inner protruding teeth 13 engage with the opposite protruding teeth 32 inside the outer pressure ring 3 .

The utility model increases the number of trapezoidal support frames in the circumferential direction of the inner ring of the inner support ring, so that the force distribution of the inner support ring is uniform, the pressure on the surface of the inner support ring is reduced, and the gap between the inner support ring and the hose is avoided, thereby causing gas leakage. The occurrence of the situation; the setting of convex teeth and reverse convex teeth prevents the hose from slipping; and the outer pressure ring is made of expandable material, which can be matched with hoses of different wall thickness and has a wide range of applications; its practical value High, can be widely used in the field of pipe connection devices.

In summary, it is only a preferred embodiment of the present utility model, and is not used to limit the scope of the utility model implementation. All the shapes, structures, features and spirits described in the scope of the claims of the utility model are equal. Changes and modifications should be included in the scope of the claims of the present utility model.

Claims (7)

1. A PVC hose connection device, comprising an inner support ring (1), a hose (2) and an outer pressure ring (3), characterized in that: the inner support ring (1) is arranged on the hose (2) Inside, the outer pressure ring (3) is arranged outside the hose (2) to tightly press the hose (2), so that the hose (2) can fit closely with the inner support ring (1), and the inner support ring (1) The surface is provided with a blocking plate (11), a groove-shaped recess (12), and a convex tooth (13) pointing upward along the vertical axis in sequence along the horizontal axis. The inner center of the inner support ring (1) is provided with a circle There are a number of support frames (4) evenly distributed along the circumferential direction of the round hole, and the inside of the outer pressure ring (3) is sequentially provided with convex parts (31) along the horizontal axis direction, and the reverse direction pointing downward along the vertical axis. Convex teeth (32). 2. A PVC hose connection device according to claim 1, characterized in that: the inner support ring (1) is cylindrical. 3. A PVC hose connection device according to claim 1, characterized in that: the cross-section of the support frame (4) is trapezoidal, and the support frame (4) and the inner support ring (1) are one overall. 4. A PVC hose connection device according to claim 1, characterized in that: the outer pressure ring (3) is made of expandable material. 5. A PVC hose connection device according to claim 1, characterized in that: the hose (2) is a PVC hose. 6. A PVC hose connection device according to claim 1, characterized in that: the depth and length of the grooved recess (12) on the surface of the inner support ring (1) are the same as the depth and length of the outer pressure ring (3) The inner protrusions (31) are consistent. 7. A PVC hose connection device according to claim 1, characterized in that: the protruding teeth (13) on the surface of the inner support ring (1) and the reverse convex teeth inside the outer pressure ring (3) Teeth (32) interlock.