Protection mechanism for PVC pipe and pressure-resistant PVC pipe assembly thereof

Abstract

The utility model relates to a PVC pipe protection mechanism and a pressure-resistant PVC pipe assembly thereof, the PVC pipe protection mechanism comprises an inner pipe and a protection mechanism, the protection mechanism is provided with a metal protection framework, a reinforcing layer and a pressure-resistant layer, and the inner pipe is directly used for conveying liquid; a wear-resisting layer is arranged between the inner pipe and the metal protection framework to reduce internal and external wear, the metal protection framework is composed of a metal ring and a reinforcing rod, and the metal protection framework is further wrapped with a resin layer for fixing the metal protection framework structure. The reinforcing layer is formed by uniformly surrounding the resin layer with a plurality of V-shaped deformation pieces which are uniformly distributed and arranged along the circumference of the inner pipe; and the compression-resistant layer is made of a polystyrene material outside the reinforcing layer.

Description

TECHNICAL FIELD

[0001] The utility model relates to PVC pipe technology field, concretely relates to a protection mechanism for PVC pipe and pressure -resistant PVC pipe component for PVC pipe. BACKGROUND

[0002] PVC pipe is a kind of widely used plastic pipe, and the existing various PVC pipes all have the problem of poor resistance, and the PVC pipe is also often extruded when used for transporting liquid, thereby leading to deformation, and the deformed PVC pipe can block liquid flow, and the blocked liquid generates large pressure in the pipe, and then the problems of pipeline leakage and even pipe burst appear, based on this situation, liquid transportation has certain danger, and it is not conducive to the application in engineering practice.

[0003] Therefore, it is necessary to design and reform PVC pipe, effectively prevent the existing PVC pipe from being extruded during use, thereby leading to the problem of deformation, block liquid flow, and avoid the possible leakage problem, lead to liquid transportation has certain danger, and it is not conducive to user use. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the problem of deformation and even leakage of existing PVC pipe after extrusion, and provides a protection mechanism for PVC pipe and pressure -resistant PVC pipe component.

[0005] In order to realize the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A protection mechanism for PVC pipe, the protection mechanism includes metal protection framework, resin layer, reinforcing layer and pressure -resistant layer, the resin layer covers the metal protection framework and fixes the metal protection framework, the reinforcing layer is located on the outside of resin layer and is fixedly connected with the outside of resin layer, and the pressure -resistant layer is located on the outside of reinforcing layer and is fixedly connected with the outside of reinforcing layer.

[0007] In the above technical solution, the PVC pipe is arranged in the metal protection framework as an inner pipe, the protection mechanism is used for protecting the inner pipe from deformation caused by pressure, when external pressure is applied on the pipe, a certain position of the pressure-resistant layer of the protection mechanism is subjected to pressure and deformed, and at the same time, the pressure is transmitted to the reinforcing layer, the reinforcing layer supports the position of the pressure-resistant layer with large deformation to prevent excessive deformation, at the same time, the reinforcing layer disperses the pressure received and transmits it to the resin layer, the resin layer is fixed on the outer surface of the metal protection framework to prevent the internal structure from being scattered and at the same time, the pressure is transmitted to the metal protection framework, the metal protection framework has high strength and only a small deformation when subjected to uniform pressure, the small deformation makes the size of the force transmitted to the inner pipe by the external force only a small deformation or negligible for the inner pipe, and finally realizes the protection of the inner pipe, prevents the inner pipe from being deformed by extrusion force and makes the liquid flow blocked or even leaks.

[0008] The metal protection framework is arranged inside the resin layer as a framework of the resin layer, and the resin layer also serves as a protection layer of the metal protection framework, and the structures of the two are equivalent to a reinforced concrete structure, the metal protection framework is equivalent to steel bars, and the resin layer is equivalent to concrete; the resin layer is arranged outside the metal protection framework and wraps the metal protection framework, can fill the space between adjacent metal rings and adjacent reinforcing rods, adhere the entire metal protection framework inside the resin layer, facilitate fixing the metal protection framework, and improve the stability of the metal protection framework, and the resin layer has high hardness, which can further improve the pressure resistance and protection effect.

[0009] Preferably, the reinforcing layer is formed by a plurality of deformation members arranged uniformly around the resin layer. The deformation member can be an elastic member or a metal member that slightly deforms under stress, which can support and support the pressure-resistant layer after the pressure-resistant layer is subjected to impact force and deforms to a certain extent, and at the same time, the impact force is buffered and released to the resin layer.

[0010] Preferably, the outer side of the resin layer is provided with a first positioning layer for positioning and installing one end of the plurality of deformation members, and the inner side of the pressure-resistant layer is provided with a second positioning layer for positioning and installing the other end of the plurality of deformation members, and the first positioning layer and the second positioning layer are provided with positioning points for installing the deformation members.

[0011] Preferably, the deformation member is a V-shaped rod, the V-shaped tip of the deformation member is installed on the second positioning layer, and the tip of the reinforcing rod opposite to the tip is installed on the first positioning layer; since the second positioning layer has only one installation point when the V-shaped deformation member is installed, in order to ensure the reliability of the installation, the thickness of the second positioning layer should be at least greater than the thickness of the first positioning layer; in addition, the shape of the deformation member can also be U-shaped, H-shaped or N-shaped, and the V-shaped deformation member can form a triangle with stability during installation, and the bearing is more reliable; when the reinforcing layer receives the pressure from the pressure-resistant layer, the tip of the V-shaped deformation member will receive the pressure along the deformation member itself to the tip opposite to the tip, the position has two contact points with the first positioning layer, and then the pressure is divided into two parts, so that the effect of dispersing the pressure is achieved; meanwhile, the V-shaped deformation member itself has a certain deformation capacity, and has a certain buffering effect in the process of transmitting the pressure.

[0012] Preferably, the metal protection framework comprises a plurality of metal rings, a plurality of reinforcing rods for strengthening the pressure resistance are arranged on the metal rings, the reinforcing rods are uniformly distributed on the circumference of the metal rings and are parallel to the axial direction of the metal rings. The metal ring is used for bearing the radial pressure, the reinforcing rod is arranged between each metal ring, and each metal ring is fixed in the axial direction to prevent the metal ring from running out of position and failing to bear the radial pressure. Meanwhile, the reinforcing rod connects the plurality of metal rings into a whole, so that when a single metal ring is pressed, the pressure can be dispersed to other metal rings to bear the pressure together, and the overall radial pressure bearing strength of the metal ring is improved.

[0013] Preferably, the material of the pressure-resistant layer is polystyrene, the material is a rigid and brittle material, has a certain pressure resistance, can effectively bear a large impact force, and has a high fatigue resistance when bearing the pressure.

[0014] A pressure-resistant PVC pipe assembly, comprising an inner pipe and a protection mechanism, the protection mechanism is sleeved on the outer surface of the inner pipe, and the inner surface of the resin layer of the protection mechanism is in contact with the outer surface of the inner pipe.

[0015] Preferably, a second wear-resistant layer for preventing internal wear of the pipe caused by friction between the inner wall of the resin layer and the outer wall of the inner pipe is further arranged between the inner wall of the resin layer and the outer wall of the inner pipe; since the resin layer and the inner pipe are not fixedly connected, the direction of the external pressure cannot only be directed to the center of the pipe, and therefore a torque will inevitably act on the inner surface of the resin layer and the outer surface of the inner pipe to cause relative sliding. Since the Mohs hardness of the inner pipe and the resin layer is similar, when the inner pipe and the resin layer slide relative to each other, the wear-resistant layer is arranged to avoid that the inner pipe is abraded too much.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] A protective structure is installed around the inner tube used for transporting liquids. In this protective structure, the pressure-resistant layer withstands the impact force applied from the outside and transmits the impact force to the reinforcing layer. The deformation components of the reinforcing layer disperse and buffer the impact force before transmitting it to the resin layer and the metal protective skeleton it is fixed to. This prevents the PVC pipe from deforming due to frequent compression during use. The metal ring and reinforcing rod in the metal protective skeleton have high strength and only undergo minor deformation, transmitting only a small portion of the impact force to the inner tube or preventing the impact force from being transmitted to the inner tube at all, thus protecting the inner tube. A wear-resistant layer is installed between the inner tube and the resin layer to prevent relative sliding between the inner tube and the resin layer, which would cause wear to the inner tube. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the protective mechanism;

[0019] Figure 2 for Figure 1 A magnified view of a section at point B in the middle;

[0020] Figure 3 A schematic diagram of the structure of the V-shaped deformable component and the metal protective frame;

[0021] Figure 4 This is a structural schematic diagram of a pressure-resistant PVC pipe assembly according to the present invention;

[0022] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle. Detailed Implementation

[0023] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0024] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0025] Example 1

[0026] like Figures 1-2As shown in one embodiment 1 of a protection mechanism for PVC pipes, the protection mechanism comprises a metal protection framework 1, a resin layer 2, a reinforcing layer 3 and a compression-resistant layer 6. The resin layer 2 covers and fixes the metal protection framework 1. The reinforcing layer 3 is located outside the resin layer 2 and is fixedly connected with the resin layer 2. The compression-resistant layer 6 is located outside the reinforcing layer 3 and is fixedly connected with the reinforcing layer 3.

[0027] Further, the metal protection framework 1 comprises a plurality of metal rings 101, and a plurality of reinforcing rods 102 are arranged on each metal ring 101 to strengthen the compression resistance. The reinforcing rods 102 are uniformly distributed on the circumference of the metal ring 101 and are parallel to the axial direction of the metal ring 101. The metal ring 101 is used to bear the radial pressure. The reinforcing rod 102 is arranged between each metal ring 101 to fix each metal ring 101 in the axial direction and prevent the metal ring 101 from running out of position and failing to bear the radial pressure. Meanwhile, the reinforcing rod 102 connects a plurality of metal rings 101 into a whole, so that when a single metal ring 101 is compressed, the pressure can be dispersed to other metal rings 101 to bear the pressure together, thereby improving the overall radial compression strength of the metal ring 101.

[0028] Further, the material of the compression-resistant layer 6 is polystyrene, which is a rigid and brittle material with a certain compression strength and can effectively bear a large impact force and has a high fatigue resistance when bearing the pressure.

[0029] The working process or working principle of the embodiment is as follows: the compression-resistant layer 6 bears the impact force applied from the outside and transmits the impact force to the reinforcing layer 3. The deformation piece 301 of the reinforcing layer 3 disperses and buffers the impact force and then transmits the impact force to the resin layer 2 and the metal protection framework 1 fixed by the resin layer 2. The metal protection framework 1 only has a slight deformation and only transmits a small part of the impact force to the inside or does not transmit the impact force to the inside, thereby realizing the protection effect of the protection mechanism.

[0030] The embodiment has the following beneficial effects: the polystyrene compression-resistant layer 6 is first subjected to the external force, and then transmits the external force to the resin layer 2 through the reinforcing layer 3 and to the metal protection framework 1. The metal ring 101 corresponding to the position of the compression-resistant layer 6 of the metal protection framework 1 bears the pressure and deforms. When the deformation reaches a certain degree, the reinforcing rod 102 also starts to deform and drives the adjacent metal ring 101 to deform to bear the pressure together. The arrangement of the compression-resistant layer 6 can further improve the compression strength of the protection mechanism and avoid the rupture of the outer layer of the protection mechanism. When the resin layer 2 and the inner pipe 10 slide relative to each other, the first wear-resistant layer 8 can protect the inner pipe 10 from being worn.

[0031] Embodiment 2

[0032] As Figures 3-4The embodiment 2 of the protection mechanism for PVC pipes shown in the figure, the protection mechanism comprises a metal protection framework 1, a resin layer 2, a reinforcing layer 3 and a pressure-resistant layer 6, the resin layer 2 covers and fixes the metal protection framework 1, the reinforcing layer 3 is located outside the resin layer 2 and is fixedly connected to the outside of the resin layer 2, and the pressure-resistant layer 6 is located outside the reinforcing layer 3 and is fixedly connected to the outside of the reinforcing layer 3.

[0033] Further, the reinforcing layer 3 is formed by a plurality of deformation members which are evenly arranged around the resin layer. The deformation member 301 can be an elastic member or a metal member which slightly deforms under stress, and its function is to support and bear pressure for the pressure-resistant layer after the pressure-resistant layer is deformed to a certain degree under impact force, and to buffer and release the impact force to the resin layer.

[0034] Further, the outside of the resin layer 2 is provided with a first positioning layer 4 for positioning and installing one end of the plurality of deformation members 301, and the inside of the pressure-resistant layer 6 is provided with a second positioning layer 5 for positioning and installing the other end of the plurality of deformation members 301; the first positioning layer 4 and the second positioning layer 5 are provided with positioning points for installing the deformation members 301,

[0035] Further, the deformation member 301 is a V-shaped rod member, the V-shaped tip of the deformation member 301 is installed on the second positioning layer 5, and the tip of the reinforcing rod opposite to the tip is installed on the first positioning layer 4. Since the second positioning layer 5 has only one installation point when installing the V-shaped deformation member 301, in order to ensure the reliability of installation, the thickness of the second positioning layer 5 should be at least greater than the thickness of the first positioning layer 4; the V shape can form a stable triangle during installation, and the bearing pressure is more reliable; when the reinforcing layer 3 receives pressure from the pressure-resistant layer 6, the tip of the V-shaped deformation member 301 will transmit the pressure along the deformation member 301 to the tip opposite to the tip, and the position has two contact points with the first positioning layer 4, thereby dividing the pressure by two, thereby achieving the effect of dispersing the pressure; at the same time, the V-shaped deformation member 301 itself has a certain deformation ability and has a certain buffering effect during the transmission of pressure.

[0036] Specifically, the deformation member needs a certain elasticity, and the material thereof should be selected as polyurethane.

[0037] The beneficial effects of the embodiment relative to the embodiment 1: during the working of the embodiment, by arranging the reinforcing layer 3 with the V-shaped deformation member 301, the pressure from the pressure-resistant layer 6 can be dispersed and transmitted to the resin layer 2 and then to the metal protection framework 1; by arranging the resin layer 2, the resin layer 2 covers the metal protection framework 1 as a whole, contacts and fills the gaps in the structure of the metal protection framework 1, can stably fix the structure of the metal ring 101 and the reinforcing rod 102 in the metal protection framework 1, and improve the bearing capacity.

[0038] Embodiment 4

[0039] As Figure 4 The pressure-resistant PVC pipe assembly shown in the figure comprises an inner pipe 10 and a protection mechanism, the protection mechanism is sleeved on the outer surface of the inner pipe 10, and the inner surface of the resin layer 2 of the protection mechanism is in contact with the outer surface of the inner pipe 10.

[0040] Further, there is a second wear-resistant layer 9 between the inner wall of the resin layer 2 and the outer wall of the inner pipe 10, which is used to prevent the internal wear of the pipe caused by the friction between the two; since the resin layer 2 and the inner pipe 10 are not fixedly connected, the direction of the external pressure cannot only point to the center of the pipe, therefore, the relative sliding phenomenon between the inner surface of the resin layer 2 and the outer surface of the inner pipe 10 cannot be avoided, the Mohs hardness of the inner pipe 10 and the resin layer 2 is similar, when the relative friction between the two occurs, in order to avoid that the inner pipe 10 will be worn greatly, it is necessary to set the wear-resistant layer.

[0041] Specifically, the material of the wear-resistant layer is polyvinyl fluoride.

[0042] The remaining features and technical effects of the embodiment are consistent with those of the embodiment 1.

[0043] The above embodiments are only preferred embodiments for fully illustrating the present application, and the protection scope of the present application is not limited thereto. The equivalent substitutions or transformations made by the person skilled in the art on the basis of the present application are all within the protection scope of the present application.

Claims

1. A protection mechanism for PVC pipes, characterized in that, The protection mechanism comprises a metal protection framework (1), a resin layer (2), a reinforcing layer (3) and a compression-resistant layer (6), the resin layer (2) covers and fixes the metal protection framework (1), the reinforcing layer (3) is fixedly connected outside the resin layer (2), and the compression-resistant layer (6) is fixedly connected with the outer surface of the reinforcing layer (3). The metal protection framework (1) comprises a plurality of metal rings (101) and reinforcing rods (102) connecting the metal rings (101) into one body, the reinforcing rods (102) are evenly distributed on the circumference of the metal rings (101) and are parallel to the axial direction of the metal rings (101).

2. A protection mechanism for PVC pipes according to claim 1, characterized in that, The reinforcing layer (3) is formed by a plurality of deformation members (301) arranged around the resin layer (2) in a uniform circumferential direction.

3. A protection mechanism for PVC pipes according to claim 2, characterized in that, A first positioning layer (4) is fixedly connected outside the resin layer (2) and used for positioning and installing one end of the deformation members (301), a second positioning layer (5) is fixedly connected inside the compression-resistant layer (6) and used for positioning and installing the other end of the deformation members (301), and the first positioning layer (4) and the second positioning layer (5) are provided with positioning points for installing the deformation members (301).

4. A protection mechanism for PVC pipes according to claim 3, characterized in that, The deformation members (301) are V-shaped rod members, the V-shaped tips of the deformation members (301) are installed on the second positioning layer (5), and the opposite ends of the V-shaped tips of the deformation members (301) are installed on the first positioning layer (4).

5. A protection mechanism for PVC pipes according to claim 1, characterized in that, The material of the compression-resistant layer (6) is polystyrene.

6. A pressure-rated PVC pipe and fitting assembly characterized by, The protection mechanism comprises a metal protection framework (1), a resin layer (2), a reinforcing layer (3) and a compression-resistant layer (6), the resin layer (2) covers and fixes the metal protection framework (1), the reinforcing layer (3) is fixedly connected outside the resin layer (2), and the compression-resistant layer (6) is fixedly connected with the outer surface of the reinforcing layer (3).

7. A pressure-rated PVC pipe and fitting assembly according to claim 6, wherein, A second wear-resistant layer (9) is further arranged between the inner wall of the resin layer (2) and the outer wall of the inner tube (10).

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