Energy-saving reinforced concrete drainage pipe centrifugal forming device

By using a damping structure combining dampers and springs in the centrifugal molding machine, the problem of short service life caused by excessive vibration amplitude was solved, resulting in higher mold density and extended centrifuge service life.

CN224391495UActive Publication Date: 2026-06-23GUANGZHOU PANYU BENDA CEMENT PROD CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202520938915.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-14
Publication Date
2026-06-23
Estimated Expiration
2035-05-14

AI Technical Summary

Technical Problem

The vibration amplitude of existing centrifugal molding machines is too large, resulting in a short service life. Vibration reduction devices are needed to reduce vibration and extend the service life of the centrifuges.

Method used

A damping structure combining dampers and springs is adopted. The dampers and springs are connected by a sliding column to form a damping structure. Combined with a servo motor driving a worm gear and worm wheel to drive an adjusting screw, the mold can be adjusted and centrifuged. During vibration, the damper and spring absorb vibration energy through their extension and contraction.

Benefits of technology

It effectively reduced vibration amplitude, improved mold density, extended the service life of centrifuges, and enhanced shock absorption and damper lifespan.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224391495U_ABST
    Figure CN224391495U_ABST
Patent Text Reader

Abstract

The utility model provides an energy -conserving reinforced concrete drain pipe centrifugal forming device, include; workstation, die and bottom plate, the four corners of workstation bottom surface all are fixedly connected with first sleeve pipe, first sleeve pipe inside upper surface is fixedly connected with first damper, first damper circumferential surface is equipped with first spring, first sleeve pipe bottom end is inserted with slide post, the slide post bottom end circumferential surface is equipped with second sleeve pipe, second sleeve pipe inside bottom surface is fixedly connected with second damper, second damper circumferential surface is equipped with second spring. The utility model discloses an energy -conserving reinforced concrete drain pipe centrifugal forming device, drives the worm rotation through starting servo motor, and the worm is engaged with worm wheel, and further drives the adjusting screw rotation, and the adjusting screw is cooperated with the sliding block screw thread, and further drives the sliding block moves in the adjusting groove, and further drives the mobile seat to move, and further can adjust according to the size of die.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of centrifugal forming of drainage pipes, and in particular to an energy-saving centrifugal forming device for reinforced concrete drainage pipes. Background Technology

[0002] Concrete pipes are pipes made of concrete or reinforced concrete, used to transport fluids such as water, oil, and gas. The forming methods include centrifugal forming, vibration forming, rolling forming, vacuum forming, and a combination of rolling, centrifugal forming, and vibration forming. Among these, centrifugal forming is widely used.

[0003] A search revealed a utility model patent in China with publication number CN217196064U, which discloses an energy-saving reinforced concrete drainage pipe centrifugal molding device. The device includes a mounting base. An auxiliary mechanism is connected to the top surface of the mounting base via an adjustment mechanism, and the adjustment mechanism is symmetrically arranged on the right side of the top surface of the mounting base. A drive mechanism is arranged on the left side of the top surface of the mounting base. A driving mechanism is symmetrically arranged on the top surface of the mounting base. The driving mechanism includes concave plates, a drive shaft, and a drive wheel. The concave plates are symmetrically arranged on the top surface of the mounting base, and a drive shaft is arranged symmetrically between two adjacent concave plates. A drive wheel is sleeved on the outer wall of the drive shaft. The device uses a speed-regulating motor as the drive method and a sprocket and chain as the braking method, effectively driving multiple molds through a single drive end for centrifugal molding, thus improving molding efficiency.

[0004] The above-mentioned patents have solved the problem of improving molding efficiency by driving multiple molds with one drive end. However, the centrifugal molding machine has excessive vibration amplitude, which leads to a short service life of the centrifuge. It is necessary to reduce the vibration of the centrifuge through vibration reduction device. Therefore, an energy-saving reinforced concrete drainage pipe centrifugal molding device is proposed. Utility Model Content

[0005] Based on this, it is necessary to address the technical problem of excessive vibration amplitude in centrifugal molding machines, which leads to a short service life, by providing an energy-saving centrifugal molding device for reinforced concrete drainage pipes. The device includes: a worktable, a mold, and a base plate. First sleeves are fixedly connected to the four corners of the bottom surface of the worktable. A first damper is fixedly connected to the upper surface inside the first sleeve. A first spring is fitted around the periphery of the first damper. A sliding column is inserted through the bottom end of the first sleeve. A second sleeve is fitted around the periphery of the bottom end of the sliding column. A second damper is fixedly connected to the bottom surface inside the second sleeve. A second spring is fitted around the periphery of the second damper. A support plate is fixedly connected to the bottom end of the second sleeve. Guide rods are symmetrically fixedly connected to the upper surface of the support plate. Sliding grooves are symmetrically formed on the upper surface of the base plate. A sliding rod is fixedly connected within the sliding groove. A partition is inserted around the periphery of the sliding rod. Sliding seats are inserted around the periphery of both ends of the sliding rod. A tension spring and a compression spring are respectively fitted around the periphery of both ends of the sliding rod on both sides of the sliding seat. A connecting rod is hinged to the upper surface of the sliding seat. Rubber columns are symmetrically fixedly connected to the bottom surface of the worktable.

[0006] In one embodiment, the upper surface of the worktable is symmetrically provided with adjustment grooves, a mounting shell is fixedly connected to the right side of the worktable, a fixed seat is fixedly connected to the upper surface of the worktable near the mounting shell, a second rotating rod is rotatably connected inside the fixed seat, a rotating motor is provided on the front side of the fixed seat, and drive wheels are inserted through both ends of the peripheral side of the second rotating rod.

[0007] In one embodiment, an adjusting screw is rotatably connected within the adjusting groove, a slider is inserted through the periphery of the adjusting screw, the right end of the adjusting screw penetrates one side of the inner wall of the adjusting groove and extends into the mounting housing, the slider is threadedly engaged with the adjusting screw, and the shape and size of the slider are adapted to the adjusting groove, a worm gear is rotatably connected within the mounting housing, a servo motor is provided on the front side of the mounting housing, and a worm wheel is fixedly connected to the right end of the adjusting screw.

[0008] In one embodiment, a movable seat is fixedly connected to the upper surface of the slider, and a first rotating rod is rotatably connected inside the movable seat. Driven wheels are inserted through the two circumferential sides of the first rotating rod, and the two circumferential sides of the first rotating rod are fixedly connected to the driven wheels. The two circumferential sides of the second rotating rod are fixedly connected to the driving wheel. The output end of the rotating motor is fixedly connected to one end of the second rotating rod. The servo motor is fixedly connected to one end of the worm gear. The worm gear meshes with the worm wheel. The mold is installed on the circumferential sides of the driving wheel and the driven wheel.

[0009] In one embodiment, the bottom end of the first sleeve is slidably engaged with the sliding column, the top end of the first spring is fixedly connected to the upper surface of the inner wall of the first sleeve, the bottom end of the first damper is fixedly connected to the top end of the sliding column, and the bottom end of the first spring is fixedly connected to the top end of the sliding column.

[0010] In one embodiment, the peripheral side of the bottom end of the slide column is slidably engaged with the second sleeve, the top end of the second damper is fixedly connected to the bottom end of the slide column, the bottom end of the second spring is fixedly connected to the bottom surface of the inner wall of the second sleeve, the top end of the second spring is fixedly connected to the bottom end of the slide column, and the top end of the guide rod penetrates the bottom surface of the worktable and is slidably engaged with the worktable.

[0011] In one embodiment, the bottom end of the rubber column is fixedly connected to the upper surface of the base plate, the bottom surface of the partition block is fixedly connected to the bottom surface of the slide groove, the top end of the connecting rod is hinged to the bottom surface of the workbench, the slide block is slidably engaged with the sliding rod, the slide block is slidably engaged with the slide groove, the left end of the tension spring is fixedly connected to one side of the partition block, the right end of the tension spring is fixedly connected to the left side of the slide block, the left end of the compression spring is fixedly connected to the right side of the slide block, and the right end of the compression spring is fixedly connected to one side of the inner wall of the slide groove.

[0012] In the operation of the aforementioned energy-saving reinforced concrete drainage pipe centrifugal molding device, a servo motor is started to drive the worm gear to rotate. The worm gear meshes with the worm wheel, thereby driving the adjusting screw to rotate. The adjusting screw engages with the slider threadedly, thereby driving the slider to move in the adjusting groove, which in turn drives the moving seat to move. This allows for adjustment according to the size of the mold. The mold is then hoisted onto the circumference of the driving wheel and the driven wheel by the machine. After that, the rotating motor is started to drive the second rotating rod to rotate together with the driving wheel to perform centrifugal operation on the mold. The centrifugal casting method is existing technology, and its working principle will not be described here.

[0013] During the casting of the mold, the worktable vibrates. To mitigate this vibration, a sliding column connects the first and second dampers, forming a damping structure that connects the support plate and the worktable. To further optimize the damping effect and improve its seismic absorption performance, a first and second spring are added. When the support plate displaces relative to the worktable, the first damper, first spring, second damper, and second spring simultaneously extend and retract. To a certain extent, the springs can dampen the vibration of the support plate. The damper provides protection and also improves the energy absorption effect, reducing the amplitude. The first and second sleeves provide excellent protection, extending the lifespan of the damper and spring. During vibration, the connecting rod pushes the slide block downwards, moving it to both sides within the groove. The tension spring applies tension to the slide block during movement, while the slide block compresses the spring, absorbing some of the force. This combination of structures reduces vibrations generated during mold casting, improving tube density and extending the centrifuge's lifespan. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a centrifugal forming device for energy-saving reinforced concrete drainage pipes in one embodiment.

[0015] Figure 2 This is a front view of an energy-saving reinforced concrete drainage pipe centrifugal forming device in one embodiment;

[0016] Figure 3 In one embodiment Figure 2 Cross-sectional view of section AA;

[0017] Figure 4 This is a right view of an energy-saving reinforced concrete drainage pipe centrifugal forming device in one embodiment;

[0018] Figure 5 In one embodiment Figure 4 Cross-sectional view of section BB in the middle;

[0019] Figure 6 In one embodiment Figure 4 Cross-sectional view of the CC section. Detailed Implementation

[0020] To make the above-mentioned objectives, features, and advantages of this utility model more readily understood, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0025] Please refer to the following: Figures 1 to 6This utility model provides an energy-saving reinforced concrete drainage pipe centrifugal molding device, comprising: a workbench 1, a mold 2, and a base plate 3. First sleeves 16 are fixedly connected to the four corners of the bottom surface of the workbench 1. A first damper 160 is fixedly connected to the upper inner surface of the first sleeve 16. A first spring 161 is sleeved on the circumferential side of the first damper 160. A sliding column 17 is inserted through the bottom end of the first sleeve 16. A second sleeve 18 is sleeved on the circumferential side of the bottom end of the sliding column 17. A second damper 180 is fixedly connected to the bottom inner surface of the second sleeve 18. A second spring 181 is sleeved on the circumferential side of the second damper 180. A support plate 19 is fixedly connected to the bottom end of the second sleeve 18. Guide rods 190 are symmetrically fixedly connected to the upper surface of the support plate 19. Sliding grooves 301 are symmetrically formed on the upper surface of the base plate 3. A sliding rod 303 is fixedly connected inside the slide groove 301. A partition block 302 is inserted through the periphery of the sliding rod 303. A slide seat 304 is inserted through the periphery of both ends of the sliding rod 303. A tension spring 305 and a compression spring 306 are respectively sleeved on the periphery of both ends of the sliding rod 303 on both sides of the slide seat 304. A connecting rod 15 is hinged to the upper surface of the slide seat 304. Rubber columns 14 are symmetrically fixedly connected to the bottom surface of the worktable 1. Adjustment grooves 10 are symmetrically opened on the upper surface of the worktable 1. A mounting shell 13 is fixedly connected to the right side of the worktable 1. A fixed seat 12 is fixedly connected to the side of the upper surface of the worktable 1 near the mounting shell 13. A second rotating rod 120 is rotatably connected inside the fixed seat 12. A rotating motor 122 is provided on the front side of the fixed seat 12. A drive wheel 121 is inserted through both ends of the periphery of the second rotating rod 120.

[0026] Furthermore, an adjusting screw 100 is rotatably connected inside the adjusting groove 10, and a slider 101 is inserted through the circumference of the adjusting screw 100. The right end of the adjusting screw 100 passes through one side of the inner wall of the adjusting groove 10 and extends into the mounting shell 13. The slider 101 is threadedly engaged with the adjusting screw 100, and the shape and size of the slider 101 are adapted to the adjusting groove 10.

[0027] Furthermore, a worm gear 130 is rotatably connected inside the mounting shell 13, a servo motor 131 is provided on the front side of the mounting shell 13, a worm wheel 102 is fixedly connected to the right end of the adjusting screw 100, a movable seat 11 is fixedly connected to the upper surface of the slider 101, a first rotating rod 110 is rotatably connected inside the movable seat 11, driven wheels 111 are inserted through the two circumferential sides of the first rotating rod 110, the two circumferential sides of the first rotating rod 110 are fixedly connected to the driven wheels 111, the two circumferential sides of the second rotating rod 120 are fixedly connected to the driving wheel 121, the output end of the rotating motor 122 is fixedly connected to one end of the second rotating rod 120, the servo motor 131 is fixedly connected to one end of the worm gear 130, the worm gear 130 meshes with the worm wheel 102, and the mold 2 is installed on the circumferential sides of the driving wheel 121 and the driven wheel 111.

[0028] Furthermore, the bottom end of the first sleeve 16 is slidably engaged with the slide column 17, the top end of the first spring 161 is fixedly connected to the upper surface of the inner wall of the first sleeve 16, the bottom end of the first damper 160 is fixedly connected to the top end of the slide column 17, the bottom end of the first spring 161 is fixedly connected to the top end of the slide column 17, the peripheral side of the bottom end of the slide column 17 is slidably engaged with the second sleeve 18, the top end of the second damper 180 is fixedly connected to the bottom end of the slide column 17, the bottom end of the second spring 181 is fixedly connected to the bottom surface of the inner wall of the second sleeve 18, the top end of the second spring 181 is fixedly connected to the bottom end of the slide column 17, and the top end of the guide rod 190 penetrates the bottom surface of the worktable 1 and is slidably engaged with the worktable 1.

[0029] Furthermore, the bottom end of the rubber column 14 is fixedly connected to the upper surface of the base plate 3, the bottom surface of the partition block 302 is fixedly connected to the bottom surface of the slide groove 301, the top end of the connecting rod 15 is hinged to the bottom surface of the workbench 1, the slide seat 304 is slidably engaged with the sliding rod 303, the slide seat 304 is slidably engaged with the slide groove 301, the left end of the tension spring 305 is fixedly connected to one side of the partition block 302, the right end of the tension spring 305 is fixedly connected to the left side of the slide seat 304, the left end of the compression spring 306 is fixedly connected to the right side of the slide seat 304, and the right end of the compression spring 306 is fixedly connected to one side of the inner wall of the slide groove 301.

[0030] It should be noted that during the operation of the above-mentioned energy-saving reinforced concrete drainage pipe centrifugal molding device, the servo motor 131 is started to drive the worm gear 130 to rotate. The worm gear 130 meshes with the worm wheel 102, thereby driving the adjusting screw 100 to rotate. The adjusting screw 100 is threadedly engaged with the slider 101, thereby driving the slider 101 to move within the adjusting groove 10, which in turn drives the moving seat 11 to move. This allows for adjustment according to the size of the mold 2. Then, the mold 2 is hoisted onto the circumference of the driving wheel 121 and the driven wheel 111 by the machine. After that, the rotating motor 122 is started to drive the second rotating rod 120 to rotate together with the driving wheel 121 to perform centrifugal operation on the mold 2. The centrifugal casting method is existing technology, and its working principle will not be described here.

[0031] When the mold 2 is being poured, the workbench 1 vibrates. To reduce vibration, the first damper 160 and the second damper 180 are connected via a sliding column 17 to create a vibration-damping structure connecting the support plate 19 and the workbench 1. To further optimize the vibration reduction effect and improve its shock absorption performance, a first spring 161 and a second spring 181 are added. When the support plate 19 moves relative to the workbench 1, the first damper 160, the first spring 161, the second damper 180, and the second spring 181 simultaneously extend and retract, thus mitigating vibration to a certain extent. The spring can protect the corresponding damper and improve the energy absorption effect of the damper, thereby reducing the amplitude. At the same time, the first sleeve 16 and the second sleeve 18 can provide good protection and improve the service life of the damper and the spring. Meanwhile, when the connecting rod 15 vibrates, it pushes the slide 304 downward to move on both sides of the slide groove 301. During the movement of the slide 304, the tension spring 305 will give the slide 304 a tension force, and the slide 304 will squeeze the compression spring 306. The compression spring 306 absorbs part of the force. The above structures work together to reduce the vibration generated when the mold 2 is poured, improve the tube density and extend the service life of the centrifuge.

[0032] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An energy-saving centrifugal molding device for reinforced concrete drainage pipes, characterized in that, include: The workbench, mold, and base plate are provided. Each of the four corners of the workbench's bottom surface is fixedly connected to a first sleeve. A first damper is fixedly connected to the upper surface inside the first sleeve. A first spring is fitted around the periphery of the first damper. A sliding column is inserted through the bottom end of the first sleeve. A second sleeve is fitted around the periphery of the bottom end of the sliding column. A second damper is fixedly connected to the bottom surface inside the second sleeve. A second spring is fitted around the periphery of the second damper. A support plate is fixedly connected to the bottom end of the second sleeve. Guide rods are symmetrically fixedly connected to the upper surface of the support plate. Sliding grooves are symmetrically formed on the upper surface of the base plate. A sliding rod is fixedly connected within the sliding groove. A partition is inserted around the periphery of the sliding rod. Sliding seats are inserted around both ends of the sliding rod. A tension spring and a compression spring are respectively fitted around the periphery of both ends of the sliding rod on either side of the sliding seat. A connecting rod is hinged to the upper surface of the sliding seat. Rubber columns are symmetrically fixedly connected to the bottom surface of the workbench.

2. The energy-saving reinforced concrete drainage pipe centrifugal molding device according to claim 1, characterized in that, The worktable has symmetrical adjustment slots on its upper surface. A mounting shell is fixedly connected to the right side of the worktable. A fixed seat is fixedly connected to the upper surface of the worktable near the mounting shell. A second rotating rod is rotatably connected inside the fixed seat. A rotating motor is provided on the front side of the fixed seat. Drive wheels are inserted at both ends of the circumferential side of the second rotating rod.

3. The centrifugal molding device for energy-saving reinforced concrete drainage pipes according to claim 2, characterized in that, An adjusting screw is rotatably connected inside the adjusting groove. A slider is inserted through the periphery of the adjusting screw. The right end of the adjusting screw penetrates one side of the inner wall of the adjusting groove and extends into the mounting housing. The slider is threadedly engaged with the adjusting screw. The shape and size of the slider are adapted to the adjusting groove.

4. The centrifugal molding device for energy-saving reinforced concrete drainage pipes according to claim 3, characterized in that, A worm gear is rotatably connected inside the mounting housing, a servo motor is provided on the front side of the mounting housing, and a worm wheel is fixedly connected to the right end of the adjusting screw.

5. The energy-saving reinforced concrete drainage pipe centrifugal molding device according to claim 4, characterized in that, A movable seat is fixedly connected to the upper surface of the slider, and a first rotating rod is rotatably connected inside the movable seat. Driven wheels are inserted through the two circumferential sides of the first rotating rod, and the two circumferential sides of the first rotating rod are fixedly connected to the driven wheels. The two circumferential sides of the second rotating rod are fixedly connected to the driving wheels.

6. The energy-saving reinforced concrete drainage pipe centrifugal molding device according to claim 5, characterized in that, The output end of the rotating motor is fixedly connected to one end of the second rotating rod, the servo motor is fixedly connected to one end of the worm gear, the worm gear meshes with the worm wheel, and the mold is installed on the circumferential side of the driving wheel and the driven wheel.

7. The energy-saving reinforced concrete drainage pipe centrifugal molding device according to claim 1, characterized in that, The bottom end of the first sleeve is slidably engaged with the sliding column, the top end of the first spring is fixedly connected to the upper surface of the inner wall of the first sleeve, the bottom end of the first damper is fixedly connected to the top end of the sliding column, and the bottom end of the first spring is fixedly connected to the top end of the sliding column.

8. The energy-saving reinforced concrete drainage pipe centrifugal molding device according to claim 7, characterized in that, The bottom peripheral side of the sliding column is slidably engaged with the second sleeve, the top of the second damper is fixedly connected to the bottom of the sliding column, the bottom of the second spring is fixedly connected to the bottom surface of the inner wall of the second sleeve, the top of the second spring is fixedly connected to the bottom of the sliding column, and the top of the guide rod penetrates the bottom surface of the worktable and is slidably engaged with the worktable.

9. The energy-saving reinforced concrete drainage pipe centrifugal molding device according to claim 1, characterized in that, The bottom end of the rubber column is fixedly connected to the upper surface of the base plate, the bottom surface of the partition block is fixedly connected to the bottom surface of the slide groove, and the top end of the connecting rod is hinged to the bottom surface of the workbench.

10. The energy-saving reinforced concrete drainage pipe centrifugal molding device according to claim 9, characterized in that, The slide block is slidably engaged with the sliding rod, and the slide block is slidably engaged with the slide groove. The left end of the tension spring is fixedly connected to one side of the partition block, the right end of the tension spring is fixedly connected to the left side of the slide block, the left end of the compression spring is fixedly connected to the right side of the slide block, and the right end of the compression spring is fixedly connected to one side of the inner wall of the slide groove.

Citation Information

Patent Citations

  • Energy-saving reinforced concrete drain pipe centrifugal forming device

    CN217196064U