Plastic pipeline connecting device

Abstract

The plastic pipeline connecting device comprises a bottom plate, two clamping devices and a connecting device, an I-shaped sliding way is transversely arranged on the bottom plate, the two clamping devices are located on the left side and the right side of the bottom plate respectively, and each clamping device comprises a convex cylinder, a bearing, an end face gear, a lead screw and a top wheel buffering device; the lower end of the convex cylinder is fixedly connected with the sliding plate, the sliding groove is formed in the lower end of the sliding plate and matched with the I-shaped sliding way, the electric push rod is used for pushing the moving plate to move, and in combination with meshing transmission of the end face gear and the gear, the lead screw drives the jacking wheel buffering device to clamp plastic pipelines of different specifications. A compression spring is arranged in the top wheel buffering device so that deformation of the plastic pipeline caused by rigid clamping can be avoided, and the sealing performance of the connecting position can be enhanced through the inclined opening design of an upper semicircular sealing ring and a lower semicircular sealing ring in the connecting device.

Description

Technical Field

[0001] This utility model relates to the field of plastic pipe connection equipment, and in particular to a plastic pipe connection device. Background Technology

[0002] Plastic pipes are a general term for pipes made of plastic. Plastic pipes are lightweight, hygienic and safe, have low water flow resistance, save energy and metal, improve the living environment, have a long service life, and are safe and convenient. During installation, plastic pipes often need to be connected due to length and other factors, thus requiring the use of plastic pipe connection devices.

[0003] While existing connection devices can connect pipes, they also have related drawbacks. For example, a prior art plastic pipe connection device (authorization announcement number CN222416582U, application date 2024.05.29) includes a worktable with a pair of lower clamping blocks on its upper side. An upper clamping block is hinged to the upper surface of the lower clamping blocks. Two pipe bodies are placed on the lower clamping blocks respectively. The locking rod is rotated upwards to be perpendicular to the upper clamping block, and the locking block is screwed to fit tightly with the upper clamping block, thereby clamping the pipe bodies. Air is inflated into the air bladder through the valve, and the air bladder expands to clamp the two pipe bodies, improving the sealing performance. The air bladder is not easily affected by thermal expansion and contraction, resulting in a better connection effect. The gasket further improves the sealing performance. In this technical solution, the clamping of the plastic pipe body is achieved using upper and lower clamping blocks. However, in actual use, plastic pipes come in different specifications. Therefore, this clamping structure cannot clamp plastic pipes of different specifications according to actual needs, thus limiting its applicability. In addition, since plastic pipes are easily deformed, the rigid clamping with upper and lower clamping blocks can also easily lead to deformation of the plastic pipes. Therefore, there is room for improvement. Utility Model Content

[0004] The purpose of this invention is to provide a plastic pipe connection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A plastic pipe connection device includes a base plate, a clamping device, and a connecting device. The base plate has a transverse I-shaped slide rail. Two clamping devices are provided, located on the left and right sides of the base plate respectively. Each clamping device includes a convex cylinder, a bearing, an end face gear, a lead screw, and a top wheel buffer device. The lower end of the convex cylinder is fixedly connected to a sliding plate. The lower end of the sliding plate has a sliding groove that matches the I-shaped slide rail. The sliding plate has integrally formed protrusions on both sides of the sliding groove. The protrusions are fixedly connected to the telescopic end of an electric push rod, which is fixedly connected to the base plate.

[0007] The convex cylinder includes a first cylinder and a second cylinder. The inner side of the bearing is fixed to the first cylinder, and the end face gear is fixed to the outer side of the bearing. The second cylinder is provided with three fixed frames along the circumferential direction. Each fixed frame is provided with a gear. The gear meshes with the end face gear, and the gear is provided with an internal thread. The gear is threaded to the lead screw, and the top end of the lead screw extends toward the center of the second cylinder.

[0008] The top wheel buffer device includes a movable plate fixed to the top of the lead screw. A U-shaped plate is provided at the lower end of the movable plate. A top wheel is rotatably connected inside the U-shaped plate. The upper two sides of the U-shaped plate are fixed to a sliding rod. The upper end of the sliding rod moves through the two sides of the movable plate. A compression spring is sleeved on the sliding rod, and the lower end of the compression spring is fixed to the upper end face of the U-shaped plate, and its upper end is fixed to the lower end face of the movable plate.

[0009] A guide rod is also fixedly connected to the upper end of the movable plate, and the upper end of the guide rod moves through the second cylinder.

[0010] The connecting device includes an upper clamping block and a lower clamping block. The two ends of the upper clamping block and the lower clamping block are fixed to each other by bolts and nuts. The upper clamping block and the lower clamping block are provided with an upper semi-circular sealing ring and a lower semi-circular sealing ring. The two ends of the upper semi-circular sealing ring are provided with an upward inclined opening, and the two ends of the lower semi-circular sealing ring are provided with a downward inclined opening. The upward inclined opening and the downward inclined opening are compatible with each other.

[0011] The end face gear is also provided with a handle on its side.

[0012] The beneficial effects of this utility model are:

[0013] By setting up a clamping device, an electric push rod is used to move the moving plate. Combined with the meshing transmission of the end face gears, the lead screw drives the top wheel buffer device to clamp plastic pipes of different specifications. The compression spring in the top wheel buffer device can avoid deformation of the plastic pipes caused by hard clamping, thus expanding the scope of application and protecting the plastic pipes. The inclined opening design of the upper and lower semi-circular sealing rings in the connecting device can enhance the sealing performance of the connection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of this utility model.

[0016] Figure 3 This is an enlarged schematic diagram of A in Figure 1 of this utility model.

[0017] Figure 4 This is an enlarged schematic diagram of B in Figure 2 of this utility model.

[0018] The components are as follows: 1-base plate; 2-clamping device; 3-connecting device; 4-I-shaped slide rail; 5-convex cylinder; 6-bearing; 7-end face gear; 8-lead screw; 9-sliding plate; 10-slide groove; 11-protrusion; 12-electric push rod; 13-first cylinder; 14-second cylinder; 15-fixed frame; 16-gear; 17-moving plate; 18-U-shaped plate; 19-top wheel; 20-slide rod; 21-compression spring; 22-guide rod; 23-upper clamping block; 24-lower clamping block; 25-upper semi-circular sealing ring; 26-lower semi-circular sealing ring; 27-upper inclined opening; 28-lower inclined opening; 29-handle. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0020] A plastic pipe connection device includes a base plate 1, a clamping device 2, and a connecting device 3. The base plate 1 is provided with an I-shaped slide rail 4 in the horizontal direction. There are two clamping devices 2, located on the left and right sides of the base plate 1, respectively. The clamping device 2 includes a convex cylinder 5, a bearing 6, an end gear 7, a lead screw 8, and a top wheel buffer device. The lower end of the convex cylinder 5 is fixedly connected to a sliding plate 9. The lower end of the sliding plate 9 is provided with a slide groove 10, which is adapted to the I-shaped slide rail 4. The sliding plate 9 is provided with integrally formed protrusions 11 on both sides of the slide groove 10. The protrusions 11 are fixedly connected to the telescopic end of an electric push rod 12, which is fixedly connected to the base plate 1.

[0021] The convex cylinder 5 includes a first cylinder 13 and a second cylinder 14. The inner side of the bearing 6 is fixed to the first cylinder 13, and the end face gear 7 is fixed to the outer side of the bearing 6. The second cylinder 14 is provided with three fixing brackets 15 along the circumferential direction. Each fixing bracket 15 is provided with a gear 16. The gear 16 meshes with the end face gear 7, and the gear 16 is provided with an internal thread. The gear 16 is threaded to the lead screw 8 through the internal thread. The top end of the lead screw 8 extends toward the center of the second cylinder 14.

[0022] The top wheel buffer device includes a movable plate 17 fixed to the top of the lead screw 8. A U-shaped plate 18 is provided at the lower end of the movable plate 17. A top wheel 19 is rotatably connected inside the U-shaped plate 18. The upper ends of the U-shaped plate 18 are fixed to the slide rod 20 on both sides. The upper end of the slide rod 20 moves through the two sides of the movable plate 17. A compression spring 21 is sleeved on the slide rod 20. The lower end of the compression spring 21 is fixed to the upper end face of the U-shaped plate 18, and its upper end is fixed to the lower end face of the movable plate 17.

[0023] A guide rod 22 is also fixedly connected to the upper end of the movable plate 17, and the upper end of the guide rod 22 moves through the second cylinder 14.

[0024] The connecting device includes an upper clamping block 23 and a lower clamping block 24. The two ends of the upper clamping block 23 and the lower clamping block 24 are fixed to each other by bolts and nuts. The upper clamping block 23 and the lower clamping block 24 are provided with an upper semi-circular sealing ring 25 and a lower semi-circular sealing ring 26. The two ends of the upper semi-circular sealing ring 25 are provided with an upward inclined opening 27, and the two ends of the lower semi-circular sealing ring 26 are provided with a downward inclined opening 28. The upward inclined opening 27 and the downward inclined opening 28 are compatible with each other.

[0025] The end face gear 7 is also provided with a handle 29 on its side.

[0026] The implementation principle of this utility model is as follows: In the plastic pipe connection device, the clamping device 2 plays a key role. When it is necessary to clamp plastic pipes of different specifications, the electric push rod 12 is activated, and its telescopic end drives the protrusion 11 fixed to the sliding plate 9 to move. Since the sliding groove 10 at the lower end of the sliding plate 9 is adapted to the I-shaped slide 4 on the base plate 1, the sliding plate 9 can move stably along the I-shaped slide 4, thereby driving the convex cylinder 5 to move. The end face gear 7 in the convex cylinder 5 is fixed to the outer side of the bearing 6. When the end face gear 7 is rotated by the handle 29, the gear 16 meshing with the end face gear 7 begins to rotate. Since the gear 16 has an internal thread that is threaded to the lead screw 8, the rotation of the gear 16 will drive the lead screw 8 to move up and down. A top wheel buffer device is fixed to the top of the lead screw 8. When the lead screw 8 drives the moving plate 17 to move, the top wheel 19 inside the U-shaped plate 18, under the action of the slide rod 20 and the compression spring 21, achieves flexible clamping of the plastic pipe, avoiding pipe deformation caused by rigid clamping. The guide rod 22 ensures the stability of the moving plate 17 during movement.

[0027] The connecting device is used to connect the clamped plastic pipes. The upper clamping block 23 and the lower clamping block 24 are fixed together by bolts and nuts, forming a stable connecting frame. The upper semi-circular sealing ring 25 and the lower semi-circular sealing ring 26 are respectively disposed within the upper clamping block 23 and the lower clamping block 24. When the upper inclined opening 27 and the lower inclined opening 28 are matched, the sealing performance at the connection point is enhanced. During the connection process, the tightening of the bolts and nuts ensures a tight fit between the upper clamping block 23 and the lower clamping block 24, effectively preventing liquid or gas leakage in conjunction with the sealing ring design.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A plastic pipe connection device, characterized in that, The device includes a base plate, a clamping device, and a connecting device. The base plate has a transverse I-shaped slide rail. There are two clamping devices, located on the left and right sides of the base plate, respectively. Each clamping device includes a convex cylinder, a bearing, an end gear, a lead screw, and a top wheel buffer device. The lower end of the convex cylinder is fixedly connected to a sliding plate. The lower end of the sliding plate has a sliding groove that matches the I-shaped slide rail. The sliding plate has integrally formed protrusions on both sides of the sliding groove. The protrusions are fixedly connected to the telescopic end of an electric push rod, which is fixedly connected to the base plate.

2. The plastic pipe connection device according to claim 1, characterized in that, The convex cylinder includes a first cylinder and a second cylinder. The inner side of the bearing is fixed to the first cylinder, and the end face gear is fixed to the outer side of the bearing. The second cylinder is provided with three fixed frames along the circumferential direction. Each fixed frame is provided with a gear. The gear meshes with the end face gear, and the gear is provided with an internal thread. The gear is threaded to the lead screw, and the top end of the lead screw extends toward the center of the second cylinder.

3. A plastic pipe connection device according to claim 1, characterized in that, The top wheel buffer device includes a movable plate fixed to the top of the lead screw. A U-shaped plate is provided at the lower end of the movable plate. A top wheel is rotatably connected inside the U-shaped plate. The upper two sides of the U-shaped plate are fixed to a sliding rod. The upper end of the sliding rod moves through the two sides of the movable plate. A compression spring is sleeved on the sliding rod, and the lower end of the compression spring is fixed to the upper end face of the U-shaped plate, and its upper end is fixed to the lower end face of the movable plate.

4. A plastic pipe connection device according to claim 3, characterized in that, A guide rod is also fixedly connected to the upper end of the movable plate, and the upper end of the guide rod moves through the second cylinder.

5. A plastic pipe connection device according to claim 1, characterized in that, The connecting device includes an upper clamping block and a lower clamping block. The two ends of the upper clamping block and the lower clamping block are fixed to each other by bolts and nuts. The upper clamping block and the lower clamping block are provided with an upper semi-circular sealing ring and a lower semi-circular sealing ring. The two ends of the upper semi-circular sealing ring are provided with an upward inclined opening, and the two ends of the lower semi-circular sealing ring are provided with a downward inclined opening. The upward inclined opening and the downward inclined opening are compatible with each other.

6. A plastic pipe connection device according to claim 1, characterized in that, The end face gear is also provided with a handle on its side.

Images