CN221034386U

CN221034386U - PVC composite solid wall pipe

Info

Publication number: CN221034386U
Application number: CN202322890158.8U
Authority: CN
Inventors: 杨宇亮
Original assignee: Guangdong Fiber Plastic Technology Group Co ltd
Current assignee: Guangdong Fiber Plastic Technology Group Co ltd
Priority date: 2023-10-26
Filing date: 2023-10-26
Publication date: 2024-05-28
Anticipated expiration: 2033-10-26

Abstract

The PVC composite solid wall pipe comprises a pipe wall section, the pipe wall section comprises an inner wall and an outer wall, the outer wall is covered with a fiber reinforced layer, the inner wall and the outer wall are integrally formed, one end of the outer wall and the other end of the inner wall are provided with clamping structures which are mutually clamped and matched, the pipe wall section is provided with a limiting groove which is used for vertically limiting and horizontally limiting the fiber reinforced layer and a notch groove which is used for increasing the contact area with the fiber reinforced layer, the limiting groove can prevent the fiber reinforced layer from sliding relative to the pipe wall or separating from the pipe wall, the notch groove can enable the fiber reinforced layer to be tightly attached in the notch groove, when the pipe wall is subjected to bending stress, the fiber reinforced layer which is permeated into the notch groove can be firmly attached, and the situation of desorption is avoided.

Description

PVC composite solid wall pipe

Technical Field

The utility model relates to the technical field of pipe structures, in particular to a PVC composite solid wall pipe.

Background

PVC (polyvinyl chloride) is a widely used plastic material, and is widely applied to the fields of pipelines, wire insulation layers, building materials and the like because of the characteristics of good durability, chemical stability, low cost, plasticity and the like, and a PVC composite pipe is a PVC hose which is formed by combining steel wire reinforcement and polyester fiber reinforcement together through a certain process and realizes complementary advantages.

In the existing PVC pipe, as disclosed in China patent document with the patent application number of CN201921963017.1, a high-performance polyvinyl chloride/hard polyvinyl chloride fiber reinforced winding pipe section bar comprises a section bar made of high-performance polyvinyl chloride/hard polyvinyl chloride, wherein the section bar comprises an inner wall, an outer wall and a cavity, a plurality of dovetail grooves are formed in the outer surface of the outer wall, rib plates corresponding to the positions of the dovetail grooves are arranged in the cavity, a buckle and a clamping groove which can be mutually buckled in a buckling mode are formed in the inner wall or the outer wall, the section bar is spirally bent and wound and is matched with the buckling mode through the buckle and the clamping groove to form a hollow pipe, the structure is connected with a fiber reinforced layer through the dovetail grooves, the connection strength of the fiber reinforced layer and the hollow pipe is effectively enhanced, and the fiber reinforced layer is not easy to fall off from the hollow pipe.

However, since the hollow cavity structure exists in the pipe wall, the hollow cavity structure may affect the strength and stability of the pipe, when the pipe is pressed by external pressure or heavy objects, the hollow cavity may make the pipe more easily deformed or broken, although the hollow cavity is supported by the rib plates, the two adjacent rib plates and the pipe wall form a rectangular structure, and the rectangular structure has weak bending resistance, so that the pipe has poor bending resistance, and the pipe is easily bent, so that the fiber reinforced layer at the bending part is easily extruded and falls off from the pipe wall, and therefore, a pipe wall structure with strong bending resistance and more tightly attached to the pipe wall is required.

Disclosure of utility model

In order to overcome the defects in the prior art, the utility model provides a PVC composite solid wall pipe.

The technical scheme adopted for solving the technical problems is as follows:

The utility model provides a PVC composite solid wall pipe, includes the pipe wall section bar, the pipe wall section bar includes inner wall and outer wall, the cover has the fibre enhancement layer on the outer wall, inner wall and outer wall integrated into one piece, the one end of outer wall is equipped with mutual joint complex joint structure with the other end of inner wall, when pipe wall section bar spiral bending winding, the joint structure at pipe wall section bar both ends is joint cooperation each other, be equipped with the joint face that is used for connecting the fibre enhancement layer on the outside of outer wall, the fibre enhancement layer adheres to on the joint face, still be equipped with on the joint face and be used for improving the limit structure with limit fibre enhancement layer connection stability, limit structure includes a plurality of spacing grooves and a plurality of breach grooves that are used for increasing and to fibre enhancement layer area of contact that limit fibre enhancement layer is spacing perpendicularly.

Further, a plurality of the limit grooves and a plurality of the notch grooves are uniformly distributed on the connecting surface at intervals, and the fiber reinforced layer is tightly matched in the limit grooves and the notch grooves.

In the utility model, the clamping structure comprises clamping seats respectively connected to the outer wall and the inner wall, the two groups of clamping seats are arranged oppositely, at least one group of clamping buckles and clamping grooves are arranged on the two groups of clamping seats, the clamping buckles on the outer wall are matched with the clamping grooves on the inner wall, and the clamping grooves on the outer wall are matched with the clamping buckles on the inner wall.

Further, the outer side of the clamping seat on the outer wall is flush with the connecting surface to form an excessive surface, at least one notch groove is formed in the excessive surface, limiting structures on two adjacent sections of pipe wall profiles are connected through the excessive surface, and the inner side of the clamping seat on the inner wall is flush with the inner wall.

In the utility model, the buckle and the clamping groove are of a water drop-shaped structure, and the tail part of the buckle is connected with the clamping seat.

The utility model has the following advantages and beneficial effects:

Through thereby with outer wall and inner wall integrated into one piece increase the structural stability and the bending resistance of pipe wall, thereby be provided with on the outer wall simultaneously carry out vertical spacing and horizontal spacing groove and be used for increasing with the breach groove to fiber reinforcement layer area of contact, the spacing groove can prevent that the relative pipe wall of fiber reinforcement layer from sliding or breaking away from the pipe wall, and breach groove can make the fiber reinforcement layer closely laminate in breach inslot, when receiving the pipe wall and receive bending stress, the fiber reinforcement layer that permeates into breach inslot can be firmly attached, avoid appearing the condition of desorption, therefore the pipe wall section bar of this structure not only bending resistance can be strong and fiber reinforcement layer and pipe wall laminating are inseparabler firm.

Drawings

The utility model is further described below with reference to the drawings and embodiments:

FIG. 1 is a schematic illustration of the connection of fiber reinforced layers in this embodiment;

fig. 2 is a schematic structural view of a pipe wall profile in the present embodiment;

FIG. 3 is an enlarged view of area A of FIG. 2;

Fig. 4 is a schematic diagram of spiral winding of a pipe wall profile in this embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and the present utility model is not limited to the following embodiments.

As shown in fig. 1 to 4, the present embodiment discloses a PVC composite solid wall pipe formed by spirally winding a solid PVC composite material section bar, specifically comprising a pipe wall section bar 1, the pipe wall section bar 1 comprises an inner wall 10 and an outer wall 11, the outer wall 11 is covered with a fiber reinforced layer 2, the inner wall 10 and the outer wall 11 are integrally formed and connected with each other, one end of the outer wall 11 in the horizontal direction and the other end of the inner wall 10 in the horizontal direction are provided with a clamping structure 12 which is mutually clamped and matched, when the pipe wall section bar 1 is spirally wound, the clamping structures 12 at two ends of the pipe wall section bar 1 are mutually clamped and matched to form a hollow pipe, a connecting surface 13 for connecting the fiber reinforced layer 2 is provided on the outer side of the outer wall 11, the fiber reinforced layer 2 is coated on the connecting surface 13 in a molten state, the connection surface 13 is further provided with a limiting structure 14 for improving the connection stability with the fiber reinforced layer 2, the limiting structure 14 comprises a plurality of limiting grooves 140 for vertically limiting and horizontally limiting the fiber reinforced layer 2 and a plurality of notch grooves 141 for increasing the contact area with the fiber reinforced layer 2, preferably, in order to achieve vertical limiting, the limiting grooves 140 can be T-shaped grooves or dovetail grooves and other groove types with vertical limiting functions, the notch grooves 141 can be rectangular grooves or special-shaped grooves and other groove types capable of increasing the contact area, a plurality of limiting grooves 140 and a plurality of notch grooves 141 are uniformly distributed on the connection surface 13 at intervals, the fiber reinforced layer 2 in a molten state can infiltrate into the limiting grooves 140 and the notch grooves 141, and after the fiber reinforced layer 2 is cooled, the fiber reinforced layer 2 can be tightly covered on the connection surface 13.

Through thereby with outer wall 11 and inner wall 10 integrated into one piece increase the structural stability and the bending resistance of pipe wall, thereby be provided with on outer wall 11 simultaneously and carry out spacing groove 140 that vertical spacing and level spacing to fibre enhancement layer 2 and be used for increasing with the breach groove 141 to fibre enhancement layer 2 area of contact, spacing groove 140 can prevent that fibre enhancement layer 2 from sliding or breaking away from the pipe wall relative to the pipe wall, and breach groove 141 can make fibre enhancement layer 2 closely laminate in breach groove 141, when receiving the pipe wall and receive bending stress, the fibre enhancement layer 2 that permeates into breach groove 141 can be firmly attached, avoid the condition of desorption to appear, consequently the pipe wall section bar 1 of this structure not only bending resistance is strong and fibre enhancement layer 2 and pipe wall laminating are inseparabler firm.

In this embodiment, the clamping structure 12 includes clamping seats 120 respectively connected to one end of the outer wall 11 and the other end of the inner wall 10, the two sets of clamping seats 120 are oppositely arranged, at least one set of clamping buckles 121 and clamping slots 122 are respectively arranged on the inner side of the clamping seat 120 on the outer wall 11 and the outer side of the clamping seat 120 on the inner wall 10, the clamping buckles 121 on the outer wall 11 are matched with the clamping slots 122 on the inner wall 10, and the clamping slots 122 on the outer wall 11 are matched with the clamping buckles 121 on the inner wall 10, so that the spirally wound pipe wall profile 1 can be clamped and fixed to form a tubular structure; through set up a set of buckle 121 and draw-in groove 122 so that improve the connection stability of pipe wall section bar 1 on the cassette 120 of outer wall 11 and inner wall 10 at least, the joint structure 12 of mutually supporting can also improve the tensile ability of PVC pipe and further improved bending resistance, and moreover, the sealing performance of PVC pipe can also be improved to the joint structure 12 of mutually lock.

Further, in order to further improve the stability of the fiber reinforced layer 2, the outer side of the clamping seat 120 on the outer wall 11 is flush with the connecting surface 13 to form an excessive surface 15, at least one notch groove 141 is formed in the excessive surface 15, after the pipe wall profile 1 is spirally wound, the limiting structures 14 on two adjacent pipe wall profiles 1 are connected through the excessive surface 15, so that the limiting reinforcing layer attached to the connecting surface 13 can be simultaneously attached to the excessive surface 15, a connecting gap is avoided, and the inner side of the clamping seat 120 on the inner wall 10 is flush with the inner wall 10, so that the PVC pipe inner wall 10 after the pipe wall profile 1 is spirally wound is smooth and smooth.

In this embodiment, in order to prevent the buckle 121 from separating from the clamping groove 122, it is necessary to perform horizontal limiting and vertical limiting on two adjacent sections of the pipe wall profile 1, so that the buckle 121 and the clamping groove 122 are set to be in a water-drop structure or other shape structures capable of realizing clamping fit, the tail of the buckle 121 in the water-drop structure is connected with the clamping seat 120, the water-drop structure can bear repeated friction and impact, and the wear resistance is good, so that the service life of the pipeline is prolonged.

The above description is merely illustrative of the utility model and those skilled in the art may make various modifications and additions to the described embodiments or substitutions in a similar manner without departing from the scope of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

PVC composite solid wall pipe, including pipe wall section bar (1), pipe wall section bar (1) includes inner wall (10) and outer wall (11), the cover has fiber reinforcement layer (2) on outer wall (11), inner wall (10) and outer wall (11) integrated into one piece, the one end of outer wall (11) is equipped with mutual joint complex joint structure (12) with the other end of inner wall (10), and when pipe wall section bar (1) helical bending winding, joint structure (12) at pipe wall section bar (1) both ends are joint cooperation each other, its characterized in that: the utility model discloses a fiber reinforced plastic composite structure, including outer wall (11), fiber reinforced layer (2), connecting face (13) that are used for connecting fiber reinforced layer (2) are equipped with on the outside of outer wall (11), fiber reinforced layer (2) are attached on connecting face (13), still be equipped with on connecting face (13) be used for improving with limit fiber reinforced layer (2) connection stability limit structure (14), limit structure (14) include a plurality of limit groove (140) that are used for to fiber reinforced layer (2) vertical limit and horizontal limit and a plurality of be used for increase with be connected area's breach groove (141) to fiber reinforced layer (2).
2. The PVC composite solid wall pipe according to claim 1, wherein: the limiting grooves (140) and the notch grooves (141) are uniformly distributed on the connecting surface (13) at intervals, and the fiber reinforced layer (2) is tightly matched in the limiting grooves (140) and the notch grooves (141).
3. The PVC composite solid wall pipe according to claim 1, wherein: the clamping structure (12) comprises clamping seats (120) which are respectively connected to the outer wall (11) and the inner wall (10), two groups of clamping seats (120) are oppositely arranged, at least one group of clamping buckles (121) and clamping grooves (122) are formed in the two groups of clamping seats (120), the clamping buckles (121) on the outer wall (11) are matched with the clamping grooves (122) on the inner wall (10), and the clamping grooves (122) on the outer wall (11) are matched with the clamping buckles (121) on the inner wall (10).
4. A PVC composite solid wall pipe according to claim 3, wherein: the outer side of the clamping seat (120) on the outer wall (11) is flush with the connecting surface (13) to form an excessive surface (15), at least one notch groove (141) is formed in the excessive surface (15), the limiting structures (14) on two adjacent sections of pipe wall profiles (1) are connected through the excessive surface (15), and the inner side of the clamping seat (120) on the inner wall (10) is flush with the inner wall (10).
5. A PVC composite solid wall pipe according to claim 3, wherein: the buckle (121) and the clamping groove (122) are of a water drop-shaped structure, and the tail of the buckle (121) is connected with the clamping seat (120).