Plastic-lined steel pipe press-fitting equipment
By using a hydraulic rod mechanism and pressure block design, the problems of center alignment and positional misalignment of the steel pipe and the inner plastic-lined pipe during the pressing process were solved, achieving a stable pressing effect.
Patent Information
- Application Number
- CN202520250484.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-18
AI Technical Summary
In existing plastic-lined steel pipe pressing equipment, the inclined rollers cannot provide reliable support, resulting in the steel pipe and the inner lining pipe not being on the same line, making reliable pressing impossible and prone to positional displacement.
The design employs a hydraulic rod mechanism and pressure block. Through the cooperation of the slide and hydraulic rod mechanism, it ensures that the steel pipe and the inner plastic-lined pipe remain centered during movement. The pressure block increases the contact surface to prevent displacement, and the hydraulic rod pushes the steel pipe and the inner plastic-lined pipe to the designated position.
It achieves reliable support and positioning of the steel pipe and the inner plastic-lined pipe, preventing displacement during movement and ensuring the stability and accuracy of the pressing process.
Smart Images
Figure CN223670631U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to plastic lined steel pipe processing technical field, especially, relate to a plastic lined steel pipe pressure equipment. BACKGROUND
[0002] The plastic lined steel pipe is formed by lining a food-grade polyethylene (PE) pipe material with the same diameter as the galvanized pipe into the inner wall of a galvanized seamless steel pipe or a welded steel pipe after removing the welding ribs, and then pressurizing and heating for a certain period of time. The plastic lined steel pipe inherits the advantages of steel pipes and plastic pipes, and overcomes the disadvantages of steel pipes and plastic pipes, and thus has a wider application range.
[0003] The utility model discloses a kind of plastic lined steel pipe pressure equipment of CN221456861U, which is supported by inclined roller to steel pipe and inner lining pipe bottom, and extrusion plate is moved bidirectionally to steel pipe and inner lining pipe relative force is applied, steel pipe and inner lining pipe realize pressure equipment, and pressure equipment process limiting roller is rolled and is held to the outer wall of steel pipe and inner lining pipe upper end. Inclined roller is fixedly connected together with support plate only at one end, cannot provide reliable support to steel pipe, under the action of gravity of steel pipe, inclined roller will be bent downward, so that the center of steel pipe and the center of inner lining pipe are not on a line, limiting roller only has a point with steel pipe and inner lining pipe is connected, cannot reliably hold steel pipe and inner lining pipe, cannot guarantee that steel pipe and inner lining pipe cannot be positionally deviated. UTILITY MODEL CONTENTS
[0004] To solve the above problems, the utility model provides a plastic lined steel pipe pressure equipment.
[0005] The utility model is realized as follows: a plastic lined steel pipe pressure equipment, including bottom plate, the first sliding slot is horizontally arranged in the middle position of the upper end of one side of the bottom plate, the steel pipe is horizontally arranged above the bottom plate, the arc of the first sliding slot is same with the arc of the steel pipe, the lower part of the steel pipe is arranged in the first sliding slot, the steel pipe is reliably supported by the bottom plate, and the steel pipe moves horizontally along the first sliding slot stably, the first hydraulic rod mechanism is fixedly arranged horizontally on the upper end of the bottom plate on the side of the first sliding slot, the first baffle is fixedly arranged vertically at one end of the first hydraulic rod mechanism, the first baffle is arranged together with one end of the steel pipe, the first baffle moves horizontally under the action of the first hydraulic rod mechanism until the first baffle is arranged together with one end of the steel pipe, and the steel pipe is moved to specified position,
[0006] The second chute is communicated with the first chute, so that the inner lining plastic pipe can enter the steel pipe, and the arc of the second chute is same with the arc of the inner lining plastic pipe, the lower part of the inner lining plastic pipe is arranged in the second chute, and the inner lining plastic pipe is reliably supported by the bottom plate and moves horizontally along the second chute stably, a second hydraulic rod mechanism is horizontally and fixedly arranged at the upper end of the bottom plate on the side of the second chute, a second baffle is vertically and fixedly arranged at one end of the second hydraulic rod mechanism, one end of the second baffle abuts against one end of the inner lining plastic pipe, the second baffle moves horizontally under the action of the second hydraulic rod mechanism until the one end of the second baffle abuts against the one end of the inner lining plastic pipe, and the second baffle pushes the inner lining plastic pipe to move to a specified position, the inner lining plastic pipe corresponds to the position of the steel pipe, and the center of the inner lining plastic pipe is on the same horizontal line with the center of the steel pipe, the inner diameter of the steel pipe is same with the outer diameter of the inner lining plastic pipe, when the one end of the inner lining plastic pipe abuts against the one end of the steel pipe, the inner lining plastic pipe is continuously pushed by the second baffle to extend into the steel pipe,
[0007] The vertical plates are vertically and fixedly arranged on both sides of the upper end of the bottom plate in a symmetrical mode, and the vertical plates support the third hydraulic rod mechanism and the fourth hydraulic rod mechanism, first bottom blocks are fixedly arranged on the inner walls of the vertical plates on the upper part of both sides of the steel pipe in a symmetrical mode, the third hydraulic rod mechanism is connected to the vertical plate through the first bottom blocks, one end of the third hydraulic rod mechanism is inclined and fixedly arranged downward from one end of the first bottom block, the third hydraulic rod mechanism is arranged towards the center of the steel pipe, a first pressing block is fixedly arranged at the end of the third hydraulic rod mechanism, the first pressing block moves to the side of the steel pipe under the action of the third hydraulic rod mechanism until the first pressing block abuts against the steel pipe, a first pressing groove is formed in the end of the first pressing block which is close to the side of the steel pipe, the arc of the first pressing groove is same with the arc of the outer wall of the steel pipe, the contact area between the first pressing block and the outer wall of the steel pipe is increased, the reliable connection between the first pressing block and the steel pipe is ensured, and thus the position of the steel pipe is limited, so that the steel pipe is prevented from deviating during movement,
[0008] Second bottom blocks are fixedly arranged on the inner walls of the vertical plates on the upper part of both sides of the inner lining plastic pipe in a symmetrical mode, the fourth hydraulic rod mechanism is connected to the vertical plate through the second bottom blocks, one end of the fourth hydraulic rod mechanism is inclined and fixedly arranged downward from one end of the second bottom block, the fourth hydraulic rod mechanism is arranged towards the center of the inner lining plastic pipe, a second pressing block is fixedly arranged at the end of the fourth hydraulic rod mechanism, the second pressing block moves to the side of the inner lining plastic pipe under the action of the fourth hydraulic rod mechanism until the second pressing block abuts against the inner lining plastic pipe, a second pressing groove is formed in the end of the second pressing block which is close to the side of the inner lining plastic pipe, the arc of the second pressing groove is same with the arc of the outer wall of the inner lining plastic pipe, the contact area between the second pressing block and the outer wall of the inner lining plastic pipe is increased, the reliable connection between the second pressing block and the inner lining plastic pipe is ensured, and thus the position of the inner lining plastic pipe is limited, so that the inner lining plastic pipe is prevented from deviating during movement.
[0009] Preferably, the length of the first baffle is greater than the outer diameter of the steel pipe and the distance between the upper end of the first baffle and the bottom plate is less than the distance between the lower end of the first pressing block and the bottom plate, which not only ensures that the first baffle reliably pushes the steel pipe to move under the action of the first hydraulic lever mechanism, but also avoids the first baffle from contacting the first pressing block during movement, thereby affecting the normal movement of the steel pipe. The length of the second baffle is greater than the outer diameter of the plastic-lined pipe and the distance between the upper end of the second baffle and the bottom plate is less than the distance between the lower end of the second pressing block and the bottom plate, which not only ensures that the second baffle reliably pushes the plastic-lined pipe to move under the action of the second hydraulic lever mechanism, but also avoids the second baffle from contacting the second pressing block during movement, thereby affecting the normal movement of the plastic-lined pipe.
[0010] Preferably, the angle between the third hydraulic lever mechanism and the horizontal plane and the angle between the fourth hydraulic lever mechanism and the horizontal plane are 40°-50°, which ensures that the steel pipe is reliably pressed in the first chute and the plastic-lined pipe is reliably pressed in the second chute.
[0011] The utility model discloses the beneficial effect is: the lower part of steel pipe is located in the first chute, and the lower part of plastic-lined pipe is located in the second chute, and reliable support is carried out to steel pipe and plastic-lined pipe through bottom plate, and the first baffle of one end of first hydraulic lever mechanism pushes steel pipe and moves, and the second baffle of one end of second hydraulic lever mechanism pushes plastic-lined pipe and moves, and until plastic-lined pipe extends into steel pipe, and the first pressing block of third hydraulic lever mechanism end portion has seted up first pressure groove one end with steel pipe and reached together, has increased the contact surface of first pressing block and steel pipe outer wall, thereby has carried out the position limitation to steel pipe, and the second pressing block of fourth hydraulic lever mechanism end portion has seted up second pressure groove one end with plastic-lined pipe and reached together, has increased the contact surface of second pressing block and plastic-lined pipe outer wall, thereby has carried out the position limitation to plastic-lined pipe, has prevented steel pipe and plastic-lined pipe from deviating during movement. BRIEF DESCRIPTION OF DRAWINGS
[0012] Fig. 1 It is the structural schematic diagram of the utility model;
[0013] Fig. 2 It is the sectional structure schematic diagram of one side of first baffle;
[0014] Fig. 3 It is the sectional structure schematic diagram of one side of plastic-lined pipe;
[0015] In the drawing: 1. bottom plate; 2. first chute; 3. steel pipe; 4. first hydraulic lever mechanism; 5. first baffle; 6. second chute; 7. plastic-lined pipe; 8. second hydraulic lever mechanism; 9. second baffle; 10. vertical plate; 11. first bottom block; 12. third hydraulic lever mechanism; 13. first pressing block; 14. first pressure groove; 15. second bottom block; 16. fourth hydraulic lever mechanism; 17. second pressing block; 18. second pressure groove. DETAILED DESCRIPTION
[0016] In order to make the technical scheme of the utility model more clearly understood, the utility model will be further described below with reference to the drawings.
[0017] As Figs. 1-3The plastic-lined steel pipe pressing equipment shown includes a bottom plate 1, a first sliding groove 2 is horizontally arranged in the middle of one side of the upper end of the bottom plate 1, a steel pipe 3 is horizontally arranged above the bottom plate 1, the curvature of the first sliding groove 2 is the same as that of the steel pipe 3, the lower part of the steel pipe 3 is arranged in the first sliding groove 2, the steel pipe 3 is reliably supported by the bottom plate 1 and moves horizontally along the first sliding groove 2 stably, a first hydraulic rod mechanism 4 is horizontally and fixedly arranged at the upper end of the bottom plate 1 on one side of the first sliding groove 2, a first baffle 5 is vertically and fixedly arranged at one end of the first hydraulic rod mechanism 4, the first baffle 5 is in abutment with one end of the steel pipe 3, the first baffle 5 moves horizontally under the action of the first hydraulic rod mechanism 4 until it is in abutment with one end of the steel pipe 3 and pushes the steel pipe 3 to move to a specified position, a second sliding groove 6 is horizontally arranged in the middle of the other side of the upper end of the bottom plate 1, the second sliding groove 6 is communicated with the first sliding groove 2, so that an inner plastic lining pipe 7 can enter the steel pipe 3, the inner plastic lining pipe 7 is horizontally arranged above the bottom plate 1, the curvature of the second sliding groove 6 is the same as that of the inner plastic lining pipe 7, the lower part of the inner plastic lining pipe 7 is arranged in the second sliding groove 6, the inner plastic lining pipe 7 is reliably supported by the bottom plate 1 and moves horizontally along the second sliding groove 6 stably, a second hydraulic rod mechanism 8 is horizontally and fixedly arranged at the upper end of the bottom plate 1 on one side of the second sliding groove 6, a second baffle 9 is vertically and fixedly arranged at one end of the second hydraulic rod mechanism 8, the second baffle 9 is in abutment with one end of the inner plastic lining pipe 7, the second baffle 9 moves horizontally under the action of the second hydraulic rod mechanism 8 until it is in abutment with one end of the inner plastic lining pipe 7 and pushes the inner plastic lining pipe 7 to move to a specified position, the inner plastic lining pipe 7 corresponds to the position of the steel pipe 3 and the center of the inner plastic lining pipe 7 is on the same horizontal line as the center of the steel pipe 3, the inner diameter of the steel pipe 3 is the same as the outer diameter of the inner plastic lining pipe 7, when one end of the inner plastic lining pipe 7 is in abutment with one end of the steel pipe 3, the inner plastic lining pipe 7 is pushed into the steel pipe 3 by the second baffle 9, vertical plates 10 are vertically and fixedly arranged on both sides of the upper end of the bottom plate 1 in a symmetrical manner, the vertical plates 10 support the positions of a third hydraulic rod mechanism 12 and a fourth hydraulic rod mechanism 16, first bottom blocks 11 are fixedly arranged on the inner walls of the vertical plates 10 on both sides of the steel pipe 3 in a symmetrical manner, the third hydraulic rod mechanism 12 is connected with the vertical plate 10, one end of the first bottom block 11 is fixedly arranged downward in an inclined manner and provided with the third hydraulic rod mechanism 12, one end of the third hydraulic rod mechanism 12 is directed to the center of the steel pipe 3, a first pressing block 13 is fixedly arranged at the end of the third hydraulic rod mechanism 12, the first pressing block 13 moves to one side of the steel pipe 3 under the action of the third hydraulic rod mechanism 12 until it is in abutment with the steel pipe 3, a first pressing groove 14 is arranged at the end of the first pressing block 13 near one side of the steel pipe 3, the curvature of the first pressing groove 14 is the same as that of the outer wall of the steel pipe 3, the contact surface of the first pressing block 13 and the outer wall of the steel pipe 3 is increased, the reliable connection of the first pressing block 13 and the steel pipe 3 is ensured, so that the position of the steel pipe 3 is limited,The second bottom block 15 is symmetrically arranged on the inner wall of the vertical plate 10 on both sides of the inner lining plastic pipe 7, and the fourth hydraulic rod mechanism 16 is connected with the vertical plate 10, one end of the second bottom block 15 is fixedly arranged with the fourth hydraulic rod mechanism 16 which is inclined downward, one end of the fourth hydraulic rod mechanism 16 is towards the center of the inner lining plastic pipe 7, and the end of the fourth hydraulic rod mechanism 16 is fixedly arranged with the second pressing block 17, the second pressing block 17 is moved to one side of the inner lining plastic pipe 7 under the action of the fourth hydraulic rod mechanism 16 until the second pressing block 17 is in contact with the inner lining plastic pipe 7, the end of the second pressing block 17 near the inner lining plastic pipe 7 is provided with the second pressing groove 18, the curvature of the second pressing groove 18 is same with the curvature of the outer wall of the inner lining plastic pipe 7, the contact surface of the second pressing block 17 and the outer wall of the inner lining plastic pipe 7 is increased, the reliable connection between the second pressing block 17 and the inner lining plastic pipe 7 is ensured, and thus the position of the inner lining plastic pipe 7 is limited, and the inner lining plastic pipe 7 is prevented from deviating during movement.
[0018] The length of the first baffle 5 is greater than the outer diameter of the steel pipe 3, and the distance between the upper end of the first baffle 5 and the bottom plate 1 is less than the distance between the lower end of the first pressing block 13 and the bottom plate 1, so that the first baffle 5 can reliably push the steel pipe 3 to move under the action of the first hydraulic rod mechanism 4, and the first baffle 5 is prevented from being in contact with the first pressing block 13 during movement, and the normal movement of the steel pipe 3 is affected, the length of the second baffle 9 is greater than the outer diameter of the inner lining plastic pipe 7, and the distance between the upper end of the second baffle 9 and the bottom plate 1 is less than the distance between the lower end of the second pressing block 17 and the bottom plate 1, so that the second baffle 9 can reliably push the inner lining plastic pipe 7 to move under the action of the second hydraulic rod mechanism 8, and the second baffle 9 is prevented from being in contact with the second pressing block 17 during movement, and the normal movement of the inner lining plastic pipe 7 is affected.
[0019] The included angle between the third hydraulic rod mechanism 12 and the fourth hydraulic rod mechanism 16 and the horizontal plane is 45°, so that the steel pipe 3 can be reliably pressed in the first sliding groove 2, and the inner lining plastic pipe 7 can be reliably pressed in the second sliding groove 6.
[0020] The above only is the preferred implementation manner of the utility model, therefore, equivalent changes or modifications made according to the structure, features and principles of the utility model patent application range are all included in the utility model patent application range.
Claims
1. A plastic lined steel pipe press fitting apparatus comprising a base plate, characterized by, The first sliding groove is horizontally arranged in the middle of the upper end of the bottom plate, the steel pipe is horizontally arranged above the bottom plate, the arc of the first sliding groove is same as that of the steel pipe, the lower part of the steel pipe is arranged in the first sliding groove, the first hydraulic rod mechanism is horizontally arranged at the upper end of the bottom plate on the side of the first sliding groove, the first baffle is vertically arranged at one end of the first hydraulic rod mechanism, and the first baffle is in abutment with one end of the steel pipe, The second sliding groove is horizontally arranged in the middle of the other side of the upper end of the bottom plate, the second sliding groove is communicated with the first sliding groove, the inner plastic lining pipe is horizontally arranged above the bottom plate, the arc of the second sliding groove is same as that of the inner plastic lining pipe, the lower part of the inner plastic lining pipe is arranged in the second sliding groove, the second hydraulic rod mechanism is horizontally arranged at the upper end of the bottom plate on the side of the second sliding groove, the second baffle is vertically arranged at one end of the second hydraulic rod mechanism, and the second baffle is in abutment with one end of the inner plastic lining pipe, the inner plastic lining pipe corresponds to the steel pipe in position, and the center of the inner plastic lining pipe is on the same horizontal line as the center of the steel pipe, the inner diameter of the steel pipe is same as the outer diameter of the inner plastic lining pipe, The vertical plates are vertically and symmetrically arranged at the upper end of the bottom plate, the first bottom blocks are symmetrically arranged on the inner walls of the vertical plates on the two sides of the steel pipe, the third hydraulic rod mechanism is obliquely and downward arranged at one end of the first bottom block, the third hydraulic rod mechanism is towards the center of the steel pipe, the first pressing block is fixedly arranged at the end of the third hydraulic rod mechanism, the first pressing groove is arranged at the end of the first pressing block on the side of the steel pipe, and the arc of the first pressing groove is same as that of the outer wall of the steel pipe, The second bottom blocks are symmetrically arranged on the inner walls of the vertical plates on the two sides of the inner plastic lining pipe, the fourth hydraulic rod mechanism is obliquely and downward arranged at one end of the second bottom block, the fourth hydraulic rod mechanism is towards the center of the inner plastic lining pipe, the second pressing block is fixedly arranged at the end of the fourth hydraulic rod mechanism, the second pressing groove is arranged at the end of the second pressing block on the side of the inner plastic lining pipe, and the arc of the second pressing groove is same as that of the outer wall of the inner plastic lining pipe.
2. A plastic-lined steel pipe press fitting apparatus according to claim 1, wherein The length of the first baffle is greater than the outer diameter of the steel pipe, the distance between the upper end of the first baffle and the bottom plate is less than the distance between the lower end of the first pressing block and the bottom plate, the length of the second baffle is greater than the outer diameter of the inner plastic lining pipe, and the distance between the upper end of the second baffle and the bottom plate is less than the distance between the lower end of the second pressing block and the bottom plate.
3. A plastic-lined steel pipe press fitting apparatus according to claim 1, wherein The included angle between the third hydraulic rod mechanism, the fourth hydraulic rod mechanism and the horizontal plane is 40°-50°.