Riveting device for electric melting joint of pipe fitting

By designing a riveting device for pipe fitting electrofusion joints, and utilizing a combination of a positioning plate and a riveting cylinder, precise positioning and uniform riveting of the electrofusion joint and pipe fittings are achieved, solving the problem of inaccurate riveting position in existing technologies and improving connection strength and efficiency.

CN223890501UActive Publication Date: 2026-02-10KANGTAI PLASTIC SCI & TECH GRP CO LTD
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Patent Information

Application Number
CN202520313645.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-02-10
Estimated Expiration
2035-02-25

AI Technical Summary

Technical Problem

The existing electrofusion joint riveting process lacks precise positioning methods, resulting in inaccurate riveting positions and affecting connection strength and reliability.

Method used

A pipe fitting electrofusion joint riveting device was designed. Through the combination of a positioning plate and a riveting cylinder, the device can achieve precise positioning and uniform riveting of the pipe fitting, ensuring accurate connection between the electrofusion joint and the pipe fitting.

Benefits of technology

It improves the accuracy of the electrofusion joint riveting into pipe fittings and the consistency of the riveting pressure, solves problems such as tilting and riveting failure, and improves the quality and efficiency of riveting.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a riveting device for an electrofusion joint of a pipe fitting, and relates to the technical field of riveting of electrofusion joints. The pipe fitting electric melting connector riveting device comprises a bottom plate and a vertical plate, the vertical plate is vertically arranged on the bottom plate, a first positioning plate is arranged on the lower portion of the vertical plate, a mounting plate is arranged on the upper portion of the vertical plate, a riveting air cylinder and a positioning air cylinder are arranged on the mounting plate, the riveting air cylinder is used for riveting an electric melting connector into a pipe fitting, and the positioning air cylinder is used for positioning the electric melting connector into the pipe fitting. A second positioning plate is arranged at the driving end of the positioning air cylinder and located below the mounting plate. The pipe fitting can be accurately positioned, it is guaranteed that the positions of an electric smelting connector and the pipe fitting cannot deviate, meanwhile, it can be guaranteed that riveting force is consistent every time, riveting pressing is in place, and the undesirable phenomena of inclination, rivet disengaging and the like cannot occur.
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Description

Technical Field

[0001] This utility model relates to the field of electrofusion joint riveting technology, and more specifically, to a pipe fitting electrofusion joint riveting device. Background Technology

[0002] The main function of electrofusion joints on pipe fittings is to ensure the sealing and firmness of pipe connections. Through the process of converting electrical energy into heat energy, electrofusion joints can achieve the fusion connection between pipe fittings and pipe materials, forming a strong connection point that can withstand greater water pressure and tensile force.

[0003] Currently, the electrofusion joint riveting process mainly relies on manual labor or simple mechanical auxiliary devices for positioning and fixing. However, this method has many shortcomings: First, due to the lack of precise positioning methods, the electrofusion joint is prone to deviation when assembling with the pipe fitting, resulting in inaccurate riveting position; second, positional deviation will further affect the working effect of the heating element inside the electrofusion joint, resulting in uneven temperature distribution in the fusion area, thereby reducing connection strength and reliability, and affecting the quality of the pipe fitting. Utility Model Content

[0004] The purpose of this utility model is to provide a pipe fitting electrofusion joint riveting device, which can accurately position the pipe fitting, ensure that the position of the electrofusion joint and the pipe fitting will not deviate, and at the same time ensure that the riveting force is consistent each time, and that the riveting is in place without the occurrence of defects such as tilting or riveting failure.

[0005] This utility model is achieved through the following technical solution:

[0006] A pipe fitting electrofusion joint riveting device includes a base plate and a vertical plate. The vertical plate is vertically disposed on the base plate. A positioning plate is disposed at the lower part of the vertical plate, and a mounting plate is disposed at the upper part of the vertical plate. A riveting cylinder and a positioning cylinder are disposed on the mounting plate. The riveting cylinder is used to rivet the electrofusion joint into the pipe fitting. A positioning plate is disposed at the driving end of the positioning cylinder. The positioning plate is located below the mounting plate.

[0007] Furthermore, the mounting plate is provided with a guide assembly, which includes a guide hole disposed on the mounting plate and a guide rod installed in the guide hole. The bottom of the guide rod is fixedly connected to the top of the positioning plate.

[0008] Furthermore, the guide rod has a portal frame structure, and the front and rear ends of the positioning plate are both connected to the guide rod.

[0009] Furthermore, the riveting cylinder includes a left riveting cylinder and a right riveting cylinder, and the positioning cylinder is located between the left riveting cylinder and the right riveting cylinder.

[0010] Furthermore, the base plate is provided with reinforcing ribs, which are in the form of right-angled triangles, with the two right-angled sides of the reinforcing ribs abutting against the base plate and the upright plate, respectively.

[0011] Furthermore, the positioning plate is detachably connected to the upright plate, and the positioning plate has positioning holes.

[0012] Furthermore, an adjustment plate is vertically provided on the side wall of the mounting plate, and a connecting plate is provided at the bottom of the mounting plate. The side of the connecting plate near the adjustment plate is fixedly connected to the adjustment plate, and the adjustment plate is detachably connected to the vertical plate.

[0013] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0014] In this invention, the pipe fitting is positioned using positioning plates one and two, and then the electrofusion joint is riveted into the pipe fitting using a riveting cylinder. This improves the accuracy of riveting the electrofusion joint into the pipe fitting and ensures consistent riveting pressure, solving the problems of tilting, detachment, and incomplete riveting of electrofusion joints in existing technologies. The positioning cylinder drives positioning plate two to move, facilitating height adjustment to accommodate pipe fittings of different lengths. This riveting device has a simple structure, low cost, and long service life. It not only ensures riveting quality but also improves riveting efficiency, significantly increasing product yield. It has promising prospects and significant economic and social benefits. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the pipe fitting electrofusion joint riveting device provided in Embodiment 1 of this utility model;

[0017] Figure 2 This is a front view of the pipe fitting electrofusion joint riveting device provided in Embodiment 1 of this utility model;

[0018] Figure 3 The left view of the pipe fitting electrofusion joint riveting device provided in Embodiment 1 of this utility model.

[0019] Icons: 1-Base plate, 2-Upright plate, 3-Positioning plate one, 4-Mounting plate, 5-Left riveting cylinder, 6-Right riveting cylinder, 7-Positioning cylinder, 8-Positioning plate two, 9-Guide rod, 10-Reinforcing rib, 11-Adjusting plate, 12-Connecting plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and 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.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example 1

[0026] like Figures 1-3As shown, this embodiment provides a pipe fitting electrofusion joint riveting device, including a base plate 1 and a vertical plate 2. The vertical plate 2 is vertically arranged on the base plate 1. A positioning plate 3 is provided at the lower part of the vertical plate 2, and an mounting plate 4 is provided at the upper part of the vertical plate 2. A riveting cylinder and a positioning cylinder 7 are provided on the mounting plate 4. The riveting cylinder is used to rivet the electrofusion joint into the pipe fitting. A positioning plate 8 is provided at the driving end of the positioning cylinder 7. The positioning plate 8 is located below the mounting plate 4.

[0027] The pipe fitting is positioned using positioning plate 3 and positioning plate 8, and then the electrofusion joint is riveted into the pipe fitting using a riveting cylinder. This improves the accuracy of riveting the electrofusion joint into the pipe fitting and ensures consistent riveting pressure, solving the problems of tilting, detachment, and incomplete riveting of electrofusion joints in existing technologies. The positioning cylinder 7 drives the positioning plate 8 to move, facilitating the adjustment of the positioning plate height to accommodate positioning pipe fittings of different lengths.

[0028] In this specific embodiment, the positioning plate 3 is detachably connected to the upright plate 2, and the positioning plate 3 has positioning holes. Specifically, the bottom of the positioning plate 3 has an extension that extends into the pipe, and the outer wall of the extension is adapted to the inner wall of the pipe. One end of the pipe is positioned using the positioning holes, and the other end is positioned using the extension, thus achieving rapid fixing of the pipe. The pipe is a curved pipe.

[0029] In a specific embodiment of this invention, the mounting plate 4 is provided with a guide assembly. The guide assembly includes a guide hole disposed on the mounting plate 4 and a guide rod 9 installed in the guide hole. The bottom of the guide rod 9 is fixedly connected to the top of the positioning plate 8. The guide assembly can guide the up-and-down movement of the positioning plate 8, improving the stability of the positioning plate 8 during movement.

[0030] In this specific embodiment, the guide rod 9 has a portal frame structure, and the front and rear ends of the positioning plate 2 8 are both connected to the guide rod 9. The two guide rods 9 cooperate with the positioning cylinder 7 to achieve a three-point connection of the positioning plate 2 8, further improving the stability of the positioning plate 2 8 when it moves.

[0031] In a specific embodiment of this invention, the riveting cylinder includes a left riveting cylinder 5 and a right riveting cylinder 6, with the positioning cylinder 7 located between the left riveting cylinder 5 and the right riveting cylinder 6. The left riveting cylinder 5 and the right riveting cylinder 6 work together to simultaneously rivet electrofusion joints into both ends of the pipe fitting, resulting in high riveting efficiency.

[0032] In this specific embodiment, a reinforcing rib 10 is provided on the base plate 1. The reinforcing rib 10 has a right-angled triangular structure, and its two right-angled sides abut against the base plate 1 and the upright plate 2, respectively. The reinforcing rib 10 can improve the stability of the connection between the base plate 1 and the upright plate 2, thereby ensuring the stability of the mounting plate 4.

[0033] In this specific embodiment, an adjusting plate 11 is vertically arranged on the side wall of the mounting plate 4, and a connecting plate 12 is arranged at the bottom of the mounting plate 4. The side of the connecting plate 12 closest to the adjusting plate 11 is fixedly connected to the adjusting plate 11, and the adjusting plate 11 is detachably connected to the upright plate 2. The adjusting plate 11 enables quick installation of the mounting plate 4 and the upright plate 2, facilitating operation and maintenance of the riveting cylinder and the positioning cylinder 7. The positioning plate 3 and the upright plate 2, as well as the adjusting plate 11 and the upright plate 2, are connected by screws.

[0034] During assembly: First, install the reinforcing rib 10 and the upright plate 2 on the base plate 1. Then, assemble the adjusting plate 11, connecting plate 12, and mounting plate 4 and install them on the upper part of the upright plate 2. Install the positioning plate 3 on the lower part of the upright plate 2. Install the left riveting cylinder 5, the positioning cylinder 7, and the right riveting cylinder 6 on the mounting plate 4 respectively. Then, connect the guide rod 9 to the positioning plate 8 and fix it on the mounting plate 4. Disassembly is performed in the reverse order.

[0035] Working principle:

[0036] After the operator places electrofusion connectors A and B into the left and right interfaces of the pipe fitting respectively, one end of the pipe fitting is placed into the positioning hole of positioning plate 3, and the pipe fitting is straightened. Then, the start button is pressed, and positioning cylinder 7 extends, pushing a portion of positioning plate 8 into the other end of the pipe fitting, thus completing the positioning of the pipe fitting. Pressing the right riveting button activates the right riveting cylinder 6, riveting electrofusion connector A on the right side of the pipe fitting into the pipe fitting. Then, pressing the left riveting button activates the left riveting cylinder 5, riveting electrofusion connector B on the left side of the pipe fitting into the pipe fitting. After completing the above actions, the pipe fitting can be manually removed. During riveting, a pad can also be placed on the base plate 1, with the pad positioned directly below the pipe fitting, to support the pipe fitting.

[0037] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pipe fitting electrofusion joint riveting device, characterized in that: The device includes a base plate and a vertical plate. The vertical plate is vertically mounted on the base plate. A positioning plate is provided at the lower part of the vertical plate, and an mounting plate is provided at the upper part of the vertical plate. A riveting cylinder and a positioning cylinder are provided on the mounting plate. The riveting cylinder is used to rivet the electrofusion joint into the pipe fitting. A positioning plate is provided at the drive end of the positioning cylinder. The positioning plate is located below the mounting plate.

2. The pipe fitting electrofusion joint riveting device according to claim 1, characterized in that, The mounting plate is provided with a guide assembly, which includes a guide hole in the mounting plate and a guide rod installed in the guide hole. The bottom of the guide rod is fixedly connected to the top of the positioning plate.

3. The pipe fitting electrofusion joint riveting device according to claim 2, characterized in that, The guide rod has a portal frame structure, and the front and rear ends of the positioning plate are connected to the guide rod.

4. The pipe fitting electrofusion joint riveting device according to claim 1, characterized in that, The riveting cylinder includes a left riveting cylinder and a right riveting cylinder, and the positioning cylinder is located between the left riveting cylinder and the right riveting cylinder.

5. The pipe fitting electrofusion joint riveting device according to claim 1, characterized in that, The base plate is provided with reinforcing ribs, which are right-angled triangular structures, and the two right-angled sides of the reinforcing ribs abut against the base plate and the upright plate, respectively.

6. The pipe fitting electrofusion joint riveting device according to claim 1, characterized in that, The positioning plate is detachably connected to the upright plate, and the positioning plate has positioning holes.

7. The pipe fitting electrofusion joint riveting device according to claim 1, characterized in that, An adjustment plate is vertically arranged on the side wall of the mounting plate, and a connecting plate is arranged at the bottom of the mounting plate. The side of the connecting plate near the adjustment plate is fixedly connected to the adjustment plate, and the adjustment plate is detachably connected to the vertical plate.