Sealing riveting nut for fluid pipeline, installation tool and pull riveting installation method

Abstract

The invention relates to a sealing riveting nut for a fluid pipeline, the sealing riveting nut is used for being riveted and connected to a mounting hole of the fluid pipeline, the sealing riveting nut comprises a riveting mechanism, a flange part and a column body which are connected from a first end to a second end, the flange part is provided with a sealing groove, and a sealing ring is mounted in the sealing groove; the riveting part of the riveting nut is provided with an internal thread for pulling and riveting, so that after the riveting part is pre-placed at the position of the mounting hole, the internal thread is pulled and riveted through a pulling and riveting tool, the riveting part is riveted in the mounting hole, the flange part abuts against the fluid pipeline, and the sealing ring is extruded by the fluid pipeline to deform; the column body of the riveting nut is used for being placed in a positioning hole in the feeding plate and then fed into a cavity defined by the fluid pipeline. The cylinder of the rivet nut can be matched with a feeding plate and the like of an installation tool, the installation efficiency is improved, a good sealing effect is achieved by means of embedded rivet pulling of the riveting mechanism in cooperation with a sealing ring on one side of the flange part, and meanwhile protrusions of an installation face cannot be formed.

Description

Technical Field

[0001] This invention relates to a fastener installation process, and more particularly to a sealing riveting nut, installation tool, and riveting installation method for fluid pipelines. Background Technology

[0002] The description in this section provides only background information related to the disclosure of this invention and does not constitute prior art.

[0003] There is a need to install rivet nuts on a fluid pipeline with a narrow diameter. The existing installation process generally considers using flat-head rivet nuts, which has two problems. First, the sealing performance is difficult to meet the requirements, so large flanges with adhesive or sealing rings are generally used. If a large flange is used, it will cause a flange protrusion on the installation surface. Second, considering the narrow space of the fluid pipeline cavity, the installation of the rivet nuts is relatively difficult.

[0004] It should be noted that the above description of the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of the present invention and facilitating understanding by those skilled in the art. It should not be assumed that the above technical solutions are known to those skilled in the art simply because they have been described in the background section of this invention. Summary of the Invention

[0005] The purpose of this invention is to provide a sealing rivet nut, installation tool, and rivet installation method for fluid pipelines. The installation efficiency can be improved by using the column of the rivet nut in conjunction with the feeding plate of the installation tool. With the embedded rivet of the riveting mechanism, a good sealing effect is formed in conjunction with the sealing ring on one side of the flange, without creating a protrusion on the installation surface.

[0006] To achieve the above objectives, the present invention discloses a riveting installation method, comprising the following steps: Place the rivet nut's post into the positioning hole of the feed plate; The feeding plate is pushed into the fluid pipeline so that the riveting mechanism of the riveting nut corresponds to the mounting hole position of the fluid pipeline. The pad is pushed into the fluid pipeline, and the side of the feeding plate opposite to the rivet nut is pushed up, so that the feeding plate and the rivet nut are padded up, and the riveting mechanism of the rivet nut is pre-placed in the mounting hole. The riveting mechanism is riveted to the mounting hole of the fluid pipeline by means of a riveting tool in the internal thread engagement of the riveting mechanism. The pad is pulled out of the fluid line, causing the column to disengage from the positioning hole of the feed plate; The feed plate is removed from the fluid pipeline.

[0007] As a further description of the above technical solution, in the step of "pushing the feeding plate into the fluid pipeline so that the riveting mechanism of the riveting nut corresponds to the mounting hole position of the fluid pipeline", the feeding plate is pushed into the fluid pipeline until the first stop at the end of the feeding plate contacts the end face of the fluid pipeline and then stops, so that the riveting mechanism of the riveting nut corresponds to the mounting hole position of the fluid pipeline. In the step "pushing the pad into the fluid pipeline on the side of the feeding plate away from the rivet nut, so that the feeding plate and the rivet nut are raised, and the riveting mechanism of the rivet nut is pre-placed in the mounting hole", the pad is pushed into the fluid pipeline on the side of the feeding plate away from the rivet nut until the second stop at the end of the pad contacts the end face of the fluid pipeline, so that the feeding plate and the rivet nut are raised, and the riveting mechanism of the rivet nut is pre-placed in the mounting hole.

[0008] This invention also discloses a sealing riveting nut for fluid pipelines, used for riveting connections at the mounting holes of the fluid pipelines. The sealing riveting nut has a first end and a second end disposed opposite to each other. The sealing riveting nut includes a riveting mechanism, a flange, and a column connected from the first end to the second end. The first end face of the flange is provided with a sealing groove, and a sealing ring is installed in the sealing groove. The riveting nut has an internal thread for riveting at the first end of the riveting part, so that after the riveting part is pre-placed at the mounting hole position, the internal thread is riveted by a riveting tool, so that the riveting part is riveted into the mounting hole. The first end face of the flange abuts against the fluid pipeline, and the sealing ring is deformed by the fluid pipeline. The column of the riveting nut is placed in the positioning hole on the feeding plate and then fed into the cavity formed by the fluid pipeline.

[0009] As a further description of the above technical solution, the riveting part includes a guide post and a toothed joint connected from the first end to the second end. The outer diameter of the guide post is not greater than the inner diameter of the mounting hole, and the outer diameter of the toothed joint is greater than the inner diameter of the mounting hole. The toothed joint is used to rivet the inner wall of the mounting hole. A first accommodating groove is provided between the toothed joint and the flange part. The first accommodating groove is used to accommodate at least partially deformed fluid pipeline during riveting.

[0010] As a further description of the above technical solution, the riveting part includes an annular part and a feeder connected from a first end to a second end. The outer diameter of the annular part is not greater than the inner diameter of the mounting hole, and the outer diameter of the feeder is greater than the inner diameter of the mounting hole. The feeder is used to rivet the outer wall of the fluid pipeline adjacent to the mounting hole. A second accommodating groove is provided between the annular part and the feeder. The second accommodating groove is used to accommodate at least partially deformed fluid pipeline during riveting.

[0011] As a further description of the above technical solution, the sealing groove has a preset size so that the sealing groove can just accommodate the fully deformed sealing ring.

[0012] The present invention also discloses an installation tool, wherein the installation tool is used to position a riveting nut in a fluid pipeline, wherein the riveting nut includes a riveting mechanism, a flange, and a column connected from a first end to a second end, the fluid pipeline includes a mounting hole, and the installation tool includes: The feeding plate includes a positioning hole for placing the column of the rivet nut. The inner diameter of the positioning hole is larger than the outer diameter of the column, and the inner diameter of the positioning hole is smaller than the outer diameter of the flange. The position of the positioning hole on the feeding plate matches the position of the mounting hole on the fluid pipeline, so that after the feeding plate is fully placed into the fluid pipeline, the position of the positioning hole is aligned with the position of the mounting hole. The riveting mechanism is oriented towards the mounting hole.

[0013] As a further description of the above technical solution, there are multiple mounting holes, which are spaced apart on the fluid pipeline, and the feeding plate includes multiple positioning holes that correspond one-to-one with the multiple mounting holes.

[0014] As a further description of the above technical solution, the end of the feeding plate is provided with a raised first stop. After the feeding plate is completely placed into the cavity of the fluid pipeline, the first stop contacts the end face of the fluid pipeline, and the positions of the plurality of mounting holes and the plurality of positioning holes coincide one by one.

[0015] As a further description of the above technical solution, the installation tool also includes a pad with a preset thickness, such that after the feeding plate feeds the rivet nut into the fluid pipeline, the pad is inserted into the fluid pipeline and placed on the side of the feeding plate away from the rivet nut, so that at least a portion of the riveting mechanism is pre-placed in the mounting hole.

[0016] As a further description of the above technical solution, the length of the pad is equal to that of the feeding plate, and a raised second stop is provided at the end of the pad. After the pad is completely placed into the cavity of the fluid pipeline, the second stop contacts the end face of the fluid pipeline.

[0017] By employing the above technical solutions, the beneficial effects of the present invention are as follows: The sealing rivet nut for fluid pipelines of the present invention can improve installation efficiency by using the rivet nut's column in conjunction with the feeding plate of the installation tool. Through the embedded riveting mechanism, a good sealing effect is achieved with the sealing ring on one side of the flange, without creating a protrusion on the mounting surface. Specifically, after the rivet nut is positioned by the column, it is fed into the narrow fluid pipeline by the feeding plate of the installation tool, and then the embedded riveting mechanism is performed. This allows the riveting mechanism to be embedded and engaged with the mounting hole of the fluid pipeline. It achieves a better sealing effect with a smaller flange and sealing ring, and has minimal impact on the mounting surface.

[0018] To further understand the features and technical content of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are for reference and illustration only and are not intended to limit the present invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the riveting process provided in the embodiments of this specification; Figure 2 This is a schematic diagram of the riveted parts provided in the embodiments of this specification; Figure 3 This is a schematic diagram of an installation tool provided in the embodiments of this specification; Figure 4 This is a partial schematic diagram of an installation tool provided in an embodiment of this specification; Figure 5 This is a partial cross-sectional schematic diagram of an installation tool provided in the embodiments of this specification; Figure 6 This is a schematic diagram of a perforated design for a sealing rivet nut used in a fluid pipeline, provided in the embodiments of this specification. Figure 7 This is a schematic diagram of a feeder scheme for a sealing riveting nut for a fluid pipeline provided in the embodiments of this specification; In the picture: 100. Fluid piping; 200. Mounting hole; 1. Rivet nut; 11. Riveting mechanism; 111. Guide post; 112. Spline tooth; 113. First receiving groove; 114. Annular part; 115. Feeder; 116. Second receiving groove; 12. Flange part; 121. Sealing groove; 122. Sealing ring; 13. Column; 14. Internal thread; 2. Installation tools; 21. Feeding plate; 211. Positioning hole; 212. First stop; 22. Pad; 221. Second stop. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this specification.

[0022] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. Furthermore, the accompanying drawings of the present invention are for simple illustrative purposes only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the scope of protection of the present invention.

[0023] It should be understood that while terms such as “first,” “second,” and “third” may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish between a component and causing a component, or a signal and causing a signal. In addition, the term “or” as used herein should, as appropriate, include any combination of one or more of the associated listed items.

[0024] Please see Figure 1-6 This embodiment provides a sealing rivet nut for a fluid pipeline, used for riveting to the mounting hole 200 of the fluid pipeline 100. The sealing rivet nut 1 has a first end and a second end disposed opposite to each other. The sealing rivet nut 1 includes a riveting mechanism 11, a flange portion 12, and a column 13 connected from the first end to the second end. The flange 12 has a sealing groove 121 on its first end face, and a sealing ring 122 is installed in the sealing groove 121. The rivet nut 1 has an internal thread 14 for riveting at the first end of the riveting part, so that after the riveting part is pre-placed at the mounting hole 200, the internal thread 14 is riveted by a riveting tool, so that the riveting part is riveted into the mounting hole 200. The first end face of the flange 12 abuts against the fluid pipeline 100, and the sealing ring 122 is deformed by the fluid pipeline 100. The column 13 of the rivet nut 1 is placed in the positioning hole 211 on the feeding plate 21 and then fed into the cavity formed by the fluid pipeline 100.

[0025] Based on the above scheme, the following installation tool 2 can be used for auxiliary installation. Specifically, the installation tool 2 is used to position the riveting nut 1 in the fluid pipeline 100. The installation tool 2 includes a feeding plate 21, which includes a positioning hole 211. The positioning hole 211 is used to place the column 13 of the riveting nut 1. The inner diameter of the positioning hole 211 is larger than the outer diameter of the column 13, and the inner diameter of the positioning hole 211 is smaller than the outer diameter of the flange 12. The position of the positioning hole 211 on the feeding plate 21 matches the position of the mounting hole 200 on the fluid pipeline 100, so that after the feeding plate 21 is completely placed into the fluid pipeline 100, the position of the positioning hole 211 is aligned with the position of the mounting hole 200. The riveting mechanism 11 is set towards the mounting hole 200.

[0026] To facilitate hole alignment, the installation tool 2 further includes a pad 22. The pad 22 has a preset thickness so that after the feeding plate 21 feeds the riveting nut 1 into the fluid pipeline 100, the pad 22 is inserted into the fluid pipeline 100 and placed on the side of the feeding plate 21 away from the riveting nut 1, so that at least a portion of the riveting mechanism 11 is pre-positioned in the mounting hole 200. The pad 22 can be a plate material with a thickness similar to that of the feeding plate 21, and its main function is to assist in lifting the feeding plate 21 after it is inserted into the cavity, so that the riveting mechanism 11 is lifted and enters the mounting hole 200.

[0027] Based on the above-described process of the present invention, the installation mainly includes the following steps: placing the column 13 of the riveting nut 1 in the positioning hole 211 of the feeding plate 21; pushing the feeding plate 21 into the fluid pipeline 100 until the first stop 212 at the end of the feeding plate 21 contacts the end face of the fluid pipeline 100, so that the riveting mechanism 11 of the riveting nut 1 corresponds to the mounting hole 200 of the fluid pipeline 100; pushing the pad 22 into the fluid pipeline 100, with the feeding plate 21 moving away from the riveting nut 1. On one side of the female 1, the feeding plate 21 and the riveting nut 1 are raised, and the riveting mechanism 11 of the riveting nut 1 is pre-placed in the mounting hole 200; the riveting mechanism 11 is riveted to the mounting hole 200 of the fluid pipeline 100 by means of a riveting tool in contact with the internal thread 14 of the riveting mechanism 11; the pad 22 is pulled out of the fluid pipeline 100, so that the column 13 is disengaged from the positioning hole 211 of the feeding plate 21; the feeding plate 21 is pulled out of the fluid pipeline 100. In the above method, the position of the pad 22 can also be limited by means of the second stop 221.

[0028] In other words, in the solution of this invention, the installation efficiency can be improved by using the column 13 of the rivet nut in conjunction with the feeding plate 21 of the installation tool 2, etc. By using the embedded riveting of the riveting mechanism 11, a good sealing effect can be formed with the sealing ring 122 on one side of the flange portion 12, without creating a protrusion on the mounting surface. Specifically, after the rivet nut 1 is positioned by the column 13, it can be fed into the narrow fluid pipeline 100 by the feeding plate 21 of the installation tool 2, and then the embedded riveting of the riveting mechanism 11 can be performed, so that the riveting mechanism 11 is embedded and engaged with the mounting hole 200 of the fluid pipeline 100. It achieves a better sealing effect with the smaller flange portion 12 and the sealing ring 122, with minimal impact on the mounting surface.

[0029] Furthermore, the aforementioned riveting nut 1 may include at least two different riveting mechanism 11 schemes.

[0030] In one of the schemes, such as Figure 6As shown, the riveting part includes a guide post 111 and a toothed 112 connected from the first end to the second end. The outer diameter of the guide post 111 is not greater than the inner diameter of the mounting hole 200, and the outer diameter of the toothed 112 is greater than the inner diameter of the mounting hole 200. The toothed 112 is used to rivet the inner wall of the mounting hole 200. A first receiving groove 113 is provided between the toothed 112 and the flange part 12. The first receiving groove 113 is used to accommodate at least partially deformed fluid pipeline 100 during riveting. During riveting, after the pad 22 is inserted, the riveting nut 1 is lifted, and the guide post 111 is pre-set in the mounting hole 200. After the external riveting tool is introduced, the external thread and internal thread 14 of the riveting tool engage with each other and rotate upward, so that the spline 112 in the riveting mechanism 11 pierces the inner wall of the mounting hole 200 until all the spline 112 pierces the mounting hole 200. During axial riveting and pressing, the metal fluid of the partially deformed fluid pipe 100 enters the first communal groove 113 at the rear end of the spline 112 and fills it.

[0031] Similarly, in making a solution, such as Figure 7 As shown, the riveting part includes an annular portion 114 and a feeder 115 connected from a first end to a second end. The outer diameter of the annular portion 114 is not greater than the inner diameter of the mounting hole 200, and the outer diameter of the feeder 115 is greater than the inner diameter of the mounting hole 200. The feeder 115 is used to rivet the outer wall of the fluid pipeline 100 adjacent to the mounting hole 200. A second receiving groove 116 is provided between the annular portion 114 and the feeder 115. The second receiving groove 116 is used to accommodate at least partially deformed fluid pipeline 100 during riveting. Similarly, during riveting, after the pad 22 is inserted, the riveting nut 1 is lifted, and the annular part 114 is pre-set in the mounting hole 200. After the external riveting tool is introduced, the external thread and internal thread 14 of the riveting tool engage with each other and rotate upward, so that the feeder 115 in the riveting mechanism 11 pierces the opposite wall surface of the fluid pipeline 100 until all the feeders 115 pierce the fluid pipeline 100 and are embedded therein. During axial riveting compression, the metal fluid of the partially deformed fluid pipeline 100 is squeezed into the second trough 116 at the front end of the feeder 115 and filled.

[0032] In one embodiment, the sealing groove 121 has a preset size so that it can just accommodate the fully deformed sealing ring 122. Specifically, before installation, the sealing ring 122 is radially fitted onto the inner wall of the sealing groove 121, under slight tension and remaining in place. After complete riveting, one side of the sealing ring 122 is squeezed by the wall of the fluid pipeline 100, and the other side is squeezed by the inner wall of the sealing groove 121. Therefore, the sealing groove 121 is completely filled, blocking the flow of liquid before and after the sealing groove 121.

[0033] In practice, during the installation of the above embodiment, there are multiple mounting holes 200, which are spaced apart on the fluid pipeline 100. The feeding plate 21 includes multiple positioning holes 211 corresponding to each of the mounting holes 200. Specifically, to facilitate alignment between the holes, a raised first stop 212 is provided at the end of the feeding plate 21. After the feeding plate 21 is fully inserted into the cavity of the fluid pipeline 100, the first stop 212 contacts the end face of the fluid pipeline 100, and the positions of the mounting holes 200 and the positioning holes 211 coincide one-to-one. The first stop 212 can be made of a vertically bent and raised plate material.

[0034] Similarly, the length of the pad 22 is equal to that of the feeding plate 21. A raised second stop 221 is connected to the end of the pad 22. After the pad 22 is fully inserted into the cavity of the fluid pipeline 100, the second stop 221 contacts the end face of the fluid pipeline 100. The second stop 221 can also be made of a vertically bent and raised plate material, with the direction of the bend opposite to that of the first stop 212, to allow for clearance.

[0035] The content disclosed above is only a preferred and feasible embodiment of the present invention, and is not intended to limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made using the contents of the present invention specification and drawings are included in the scope of the patent application of the present invention.

[0036] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0037] Although this application has been described by way of examples, those skilled in the art will know that this application has many modifications and variations without departing from the spirit of this application, and it is intended that the appended embodiments include these modifications and variations without departing from this application.

Claims

1. A riveting installation method, characterized in that, Includes the following steps: Place the rivet nut's post into the positioning hole of the feed plate; The feeding plate is pushed into the fluid pipeline so that the riveting mechanism of the riveting nut corresponds to the mounting hole position of the fluid pipeline. The pad is pushed into the fluid pipeline, and the side of the feeding plate opposite to the rivet nut is pushed up, so that the feeding plate and the rivet nut are padded up, and the riveting mechanism of the rivet nut is pre-placed in the mounting hole. The riveting mechanism is riveted to the mounting hole of the fluid pipeline by means of a riveting tool in the internal thread engagement of the riveting mechanism. The pad is pulled out of the fluid line, causing the column to disengage from the positioning hole of the feed plate; The feed plate is removed from the fluid pipeline.

2. The riveting installation method according to claim 1, characterized in that: In the step "pushing the feed plate into the fluid pipeline so that the riveting mechanism of the rivet nut corresponds to the mounting hole position of the fluid pipeline", the feed plate is pushed into the fluid pipeline until the first stop at the end of the feed plate contacts the end face of the fluid pipeline and then stops, so that the riveting mechanism of the rivet nut corresponds to the mounting hole position of the fluid pipeline. In the step "Push the pad into the fluid pipeline on the side of the feeding plate away from the rivet nut, so that the feeding plate and the rivet nut are raised, and the riveting mechanism of the rivet nut is pre-placed in the mounting hole", the pad is pushed into the fluid pipeline on the side of the feeding plate away from the rivet nut until the second stop at the end of the pad contacts the end face of the fluid pipeline, so that the feeding plate and the rivet nut are raised, and the riveting mechanism of the rivet nut is pre-placed in the mounting hole.

3. A sealing rivet nut for a fluid pipeline, used for riveting connection at the mounting hole of the fluid pipeline, characterized in that, The sealing riveting nut has a first end and a second end that are disposed opposite to each other. The sealing riveting nut includes a riveting mechanism, a flange, and a column that are connected from the first end to the second end. The first end face of the flange is provided with a sealing groove, and a sealing ring is installed in the sealing groove. The riveting nut has an internal thread for riveting at the first end of the riveting part, so that after the riveting part is pre-placed at the mounting hole position, the internal thread is riveted by a riveting tool, so that the riveting part is riveted into the mounting hole. The first end face of the flange abuts against the fluid pipeline, and the sealing ring is deformed by the fluid pipeline. The column of the riveting nut is placed in the positioning hole on the feeding plate and then fed into the cavity formed by the fluid pipeline.

4. The sealing rivet nut for fluid pipelines according to claim 3, characterized in that: The riveting part includes a guide post and a toothed joint connected from a first end to a second end. The outer diameter of the guide post is not greater than the inner diameter of the mounting hole, and the outer diameter of the toothed joint is greater than the inner diameter of the mounting hole. The toothed joint is used to rivet the inner wall of the mounting hole. A first groove is provided between the toothed joint and the flange part. The first groove is used to accommodate at least partially deformed fluid pipeline during riveting.

5. The sealing rivet nut for fluid pipelines according to claim 3, characterized in that: The riveting part includes an annular portion and a feeder connected from a first end to a second end. The outer diameter of the annular portion is not greater than the inner diameter of the mounting hole, and the outer diameter of the feeder is greater than the inner diameter of the mounting hole. The feeder is used to rivet the outer wall of the fluid pipeline adjacent to the mounting hole. A second accommodating groove is provided between the annular portion and the feeder. The second accommodating groove is used to accommodate at least partially deformed fluid pipeline during riveting.

6. The sealing rivet nut for fluid pipelines according to claim 3, characterized in that: The sealing groove has a preset size so that it can just accommodate the fully deformed sealing ring.

7. An installation tool, characterized in that, The installation tool is used to position the rivet nut in the fluid pipeline, wherein the rivet nut includes a riveting mechanism, a flange, and a column connected from a first end to a second end, the fluid pipeline includes a mounting hole, and the installation tool includes: The feeding plate includes a positioning hole for placing the column of the rivet nut. The inner diameter of the positioning hole is larger than the outer diameter of the column, and the inner diameter of the positioning hole is smaller than the outer diameter of the flange. The position of the positioning hole on the feeding plate matches the position of the mounting hole on the fluid pipeline, so that after the feeding plate is fully placed into the fluid pipeline, the position of the positioning hole is aligned with the position of the mounting hole. The riveting mechanism is oriented towards the mounting hole.

8. The installation tool according to claim 7, characterized in that: The number of mounting holes is multiple, and the multiple mounting holes are spaced apart on the fluid pipeline. The feeding plate includes multiple positioning holes that correspond one-to-one with the multiple mounting holes.

9. The installation tool according to claim 8, characterized in that: The end of the feeding plate is provided with a raised first stop. After the feeding plate is completely placed into the cavity of the fluid pipeline, the first stop contacts the end face of the fluid pipeline, and the positions of the plurality of mounting holes and the plurality of positioning holes coincide one by one.

10. The installation tool according to claim 7, characterized in that: The installation tool also includes a pad with a preset thickness, such that after the feed plate feeds the rivet nut into the fluid line, the pad is inserted into the fluid line and placed on the side of the feed plate away from the rivet nut, so that at least a portion of the riveting mechanism is pre-placed in the mounting hole.

11. The installation tool according to claim 10, characterized in that: The length of the pad is equal to that of the feeding plate, and a raised second stop is provided at the end of the pad. After the pad is completely placed into the cavity of the fluid pipeline, the second stop contacts the end face of the fluid pipeline.

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