Connector expansion device for polyethylene corrugated pipe production

Abstract

The utility model relates to the technical field of corrugated pipe processing, and discloses a connector expansion device for polyethylene corrugated pipe production, which comprises a device main body, the device main body comprises an electric push rod, the top end of the electric push rod is connected with a telescopic bracket, the outer surface of the telescopic bracket is fixedly provided with a mounting shaft block, and the outer side of the mounting shaft block is connected with a rotating shaft rod; and a rotating shaft center is connected between the mounting shaft block and the rotating shaft rod. The electric push rod drives the telescopic support to extend towards the outer side, namely the direction of the electric push rod, the installation shaft block connected with the surface of the telescopic support moves synchronously, the deflection axis connected with the top end of the rotating shaft rod moves synchronously, the deflection axis deflects, and the deflection axis drives the movable shaft rod to move synchronously. The movable shaft rod drives the adjusting shaft center to conduct deflection motion, then the expansion rods connected to the other side of the adjusting shaft center move, the three sets of expansion rods conduct expansion towards the outer side, and expansion of the corrugated pipe is achieved through the expansion rods.

Description

Technical Field

[0001] The utility model relates to the field of corrugated pipe processing, in particular to an interface expansion device for producing polyethylene corrugated pipes. Background Art

[0002] Polyethylene corrugated pipe, due to its excellent flexibility, pressure resistance, and corrosion resistance, is widely used in municipal engineering, drainage systems, and communication cable protection. During installation, the connection of corrugated pipe joints is a critical step, especially with the increasing demand for connecting corrugated pipes of different diameters. To ensure the sealing and connection strength of the joints, the ends of the corrugated pipes are often expanded to ensure a tight fit with other pipe fittings or similar corrugated pipes.

[0003] Currently, there are multiple solutions for bellows interface expansion technology. For example, CN113102644A (application number 202011114118.9) discloses an interface expansion and flattening device for bellows manufacturing. This device achieves bellows expansion and flattening through the coordinated operation of a rotary table, a clamping mechanism, an expansion mechanism, a correction mechanism, and a flattening mechanism. In its technical solution, the expansion mechanism uses a linear drive and a cylinder to drive the expansion head, which cooperates with the correction mechanism and the flattening mechanism to form a relatively complete processing flow.

[0004] The above-mentioned cited document technology is not easy to operate. The cited document equipment needs to complete the expansion work through the coordinated control of multiple driving devices (such as the first servo motor, the second servo motor, the third servo motor, etc.). The operation process is relatively cumbersome and has high technical requirements for the operator, which is not conducive to efficient operation in small-scale production.

[0005] Based on this, we proposed an interface expansion device for the production of polyethylene corrugated pipes. Utility Model Content

[0006] In order to solve the technical problem of inconvenience in connecting corrugated pipes due to different diameters, the utility model provides a joint expansion device for the production of polyethylene corrugated pipes.

[0007] The utility model adopts the following technical solution: a joint expansion device for polyethylene corrugated pipe production, comprising a device body, the device body comprising an electric push rod, the top end of the electric push rod is connected to a telescopic bracket, the outer surface of the telescopic bracket is fixedly mounted with a mounting shaft block, the outer side of the mounting shaft block is connected to a rotating shaft rod, and a rotating axis is connected between the mounting shaft block and the rotating shaft rod;

[0008] The top end of the rotating shaft is connected to a movable shaft, a deflection axis is connected between the rotating shaft and the movable shaft, and the top end of the movable shaft is connected to an expansion rod;

[0009] Insert three groups of expansion rods into the inner diameter of the bellows, and through the operation of the electric push rod, the electric push rod controls the telescopic bracket to perform telescopic operation. The telescopic bracket is composed of two groups of rod bodies, and the two groups of rod bodies can move between each other. The electric push rod drives the telescopic bracket to extend outward, that is, in the direction of the electric push rod. The mounting shaft block connected to the surface of the telescopic bracket moves synchronously, and the mounting shaft block pulls the rotating shaft rod to move horizontally synchronously. The deflection axis connected to the top of the rotating shaft rod moves synchronously, and the deflection axis deflects. The deflection axis drives the movable shaft rod to move synchronously, and the movable shaft rod drives the adjustment axis to deflect. The expansion rod connected to the other side of the adjustment axis then moves, and the three groups of expansion rods expand outward, thereby realizing the expansion of the bellows.

[0010] As a further improvement of the above solution, the mounting shaft block and the rotating shaft rod are deflected through the rotating axis to adjust the deflection angle of the rotating shaft rod.

[0011] As a further improvement of the above solution, the rotating shaft and the movable shaft are deflected through a deflection axis to adjust the deflection angle of the rotating shaft and the movable shaft.

[0012] As a further improvement of the above solution, the expansion rod is connected to the top end of the movable shaft rod, the movable shaft rod and the expansion rod form an L shape, and the adjustment axis is located at the connection between the movable shaft rod and the expansion rod.

[0013] As a further improvement of the above scheme, a receiving block is fixedly connected to the outside of the rod body of the telescopic bracket, the receiving block is passed through the movable shaft rod, and an adjustment axis is provided at the connection between the receiving block and the movable shaft rod. The top end of the receiving block is connected to a limiting plate, and the limiting plate limits the expansion position of the bellows. Three groups of expansion rods are provided, and the three groups of expansion rods are inserted into the interior of the bellows.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model drives the telescopic bracket to extend outward, that is, in the direction of the electric push rod, through an electric push rod. The mounting shaft block connected to the surface of the telescopic bracket moves synchronously, the deflection axis connected to the top of the rotating shaft moves synchronously, the deflection axis deflects, the deflection axis drives the movable shaft to move synchronously, the movable shaft drives the adjustment shaft to deflect, and the expansion rod connected to the other side of the adjustment shaft then moves, so that the three groups of expansion rods expand outward, and the expansion rods thereby realize the expansion of the bellows. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 Schematic diagram of the middle part structure;

[0018] Figure 3 For this utility model Figure 2 Schematic diagram of the structural cross section.

[0019] Description of main symbols:

[0020] 1. Device body; 2. Electric push rod; 3. Telescopic bracket; 4. Mounting shaft block; 5. Rotating shaft; 6. Rotating axis; 7. Movable shaft; 8. Deflection axis; 9. Expansion rod; 10. Adapter block; 11. Adjustment axis; 12. Limit plate; 13. Bellows. DETAILED DESCRIPTION

[0021] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] Example 1:

[0023] Please combine Figure 1-Figure 3 This embodiment proposes an interface expansion device for the production of polyethylene corrugated pipes, including a device body 1, which includes an electric push rod 2. The top of the electric push rod 2 is connected to a telescopic bracket 3. The outer surface of the telescopic bracket 3 is fixedly installed with a mounting shaft block 4. The outer side of the mounting shaft block 4 is connected to a rotating shaft rod 5. A rotating axis 6 is connected between the mounting shaft block 4 and the rotating shaft rod 5; the mounting shaft block 4 and the rotating shaft rod 5 are deflected by the rotating axis 6 to adjust the deflection angle of the rotating shaft rod 5.

[0024] The top end of the rotating shaft 5 is connected to a movable shaft 7, and a deflection axis 8 is connected between the rotating shaft 5 and the movable shaft 7. The rotating shaft 5 and the movable shaft 7 are deflected by the deflection axis 8 to adjust the deflection angle of the rotating shaft 5 and the movable shaft 7. The top end of the movable shaft 7 is connected to an expansion rod 9; the expansion rod 9 is connected to the top end of the movable shaft 7, and the movable shaft 7 and the expansion rod 9 form an L shape. The adjustment axis 11 is located at the connection between the movable shaft 7 and the expansion rod 9.

[0025] Insert the three groups of expansion rods 9 into the inner diameter of the bellows 13, and through the operation of the electric push rod 2, the electric push rod 2 controls the telescopic bracket 3 to perform telescopic operation. The telescopic bracket 3 is composed of two groups of rod bodies, and the two groups of rod bodies can move. The electric push rod 2 drives the telescopic bracket 3 to extend outward, that is, in the direction of the electric push rod 2. The mounting shaft block 4 connected to the surface of the telescopic bracket 3 moves synchronously, and the mounting shaft block 4 pulls the rotating shaft rod 5 to move horizontally synchronously. The deflection axis 8 connected to the top of the rotating shaft rod 5 moves synchronously, and the deflection axis 8 deflects. The deflection axis 8 drives the movable shaft rod 7 to move synchronously, and the movable shaft rod 7 drives the adjusting axis 11 to deflect. The expansion rod 9 connected to the other side of the adjusting axis 11 then moves, and the three groups of expansion rods 9 expand outward, thereby realizing the expansion of the bellows 13.

[0026] A receiving block 10 is fixedly connected to the outside of the rod body of the telescopic bracket 3, and the receiving block 10 passes through the movable shaft 7. An adjustment axis 11 is provided at the connection between the receiving block 10 and the movable shaft 7. The top of the receiving block 10 is connected to a limit plate 12, and the limit plate 12 limits the expansion position of the bellows 13. Three groups of expansion rods 9 are provided, and the three groups of expansion rods 9 are inserted into the interior of the bellows 13.

[0027] The specific implementation steps of this utility model are as follows:

[0028] When in use, the three groups of expansion rods 9 are inserted into the inner diameter of the bellows 13. Through the operation of the electric push rod 2, the electric push rod 2 controls the telescopic bracket 3 to perform telescopic operation. The telescopic bracket 3 is composed of two groups of rod bodies, and the two groups of rod bodies can move. The electric push rod 2 drives the telescopic bracket 3 to extend outward, that is, in the direction of the electric push rod 2. The mounting shaft block 4 connected to the surface of the telescopic bracket 3 moves synchronously, and the mounting shaft block 4 pulls the rotating shaft rod 5 to move horizontally synchronously. The deflection axis 8 connected to the top of the rotating shaft rod 5 moves synchronously, and the deflection axis 8 deflects. The deflection axis 8 drives the movable shaft rod 7 to move synchronously, and the movable shaft rod 7 drives the adjusting axis 11 to deflect. The expansion rod 9 connected to the other side of the adjusting axis 11 then moves, and the three groups of expansion rods 9 expand outward, thereby realizing the expansion of the bellows 13.

[0029] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A joint expansion device for polyethylene corrugated pipe production, comprising a device body, characterized in that: The device body includes an electric push rod, the top end of the electric push rod is connected to a telescopic bracket, the outer surface of the telescopic bracket is fixedly mounted with a mounting shaft block, the outer side of the mounting shaft block is connected to a rotating shaft rod, and a rotating axis is connected between the mounting shaft block and the rotating shaft rod; The top end of the rotating shaft is connected to a movable shaft, a deflection axis is connected between the rotating shaft and the movable shaft, and the top end of the movable shaft is connected to an expansion rod; A receiving block is fixedly connected to the outside of the rod body of the telescopic bracket, and the receiving block passes through the movable shaft. An adjustment axis is provided at the connection between the receiving block and the movable shaft, and the top end of the receiving block is connected to a limiting plate.

2. A joint expansion device for producing polyethylene corrugated pipes according to claim 1, characterized in that: The mounting shaft block and the rotating shaft rod are deflected via the rotating axis to adjust the deflection angle of the rotating shaft rod.

3. The joint expansion device for producing polyethylene corrugated pipes according to claim 1, characterized in that: The rotating shaft and the movable shaft are deflected via the deflection axis to adjust the deflection angles of the rotating shaft and the movable shaft.

4. A joint expansion device for producing polyethylene corrugated pipes according to claim 1, characterized in that: The expansion rod is connected to the top end of the movable shaft rod, the movable shaft rod and the expansion rod form an L shape, and the adjustment axis is located at the connection between the movable shaft rod and the expansion rod.

5. The joint expansion device for producing polyethylene corrugated pipes according to claim 1, characterized in that: The expansion rods are provided in three groups, and the three groups of expansion rods are inserted into the interior of the corrugated tube.

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