Metal pipe fitting connector connecting device

Abstract

The utility model relates to a metal pipe fitting joint connecting device which comprises a bearing sleeve and an inserting block, the bearing sleeve and the inserting block are both sleeved or welded on two pipe fittings needing to be connected, the bearing sleeve is respectively provided with a first groove and a second groove which are communicated with each other, and the size of the second groove is matched with the sectional size of the inserting block. A third groove is formed in the side wall of the second groove; a fourth groove is formed in the outer portion of the side wall of the inserting block, a spring is arranged at the bottom of the fourth groove, a check block is arranged on the upper portion of the spring, one end of the spring is fixedly connected with the bottom of the fourth groove, the other end of the spring is fixedly connected with the check block, and a fifth groove is formed in the inserting block. And through mutual matching of the third groove and the stop block arranged in the fourth groove, it is ensured that the jacking force between the first pipe fitting and the second pipe fitting meets the design requirement, and it is ensured that no leakage phenomenon occurs when the pipe fittings convey liquid.

Description

Technical Field

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

[0002] The statements herein provide only background information in relation to this disclosure and do not necessarily constitute prior art.

[0003] Metal pipe fittings are increasingly used in various fields. However, due to limitations in manufacturing processes and transportation conditions, metal pipe fittings cannot be directly processed to larger lengths. Currently, pipe fittings are typically processed to a specific length and then spliced ​​on-site to meet usage requirements. To better serve customers and improve customer satisfaction, pipe fitting manufacturers generally need to provide technical support to ensure the reliability of pipe connections. This places higher technical demands on pipe fitting manufacturers.

[0004] Existing technologies typically control the tightening force at the ends of pipe fittings manually. However, during the manual splicing of pipe fittings, it is impossible to accurately control the tightness at the ends. This can easily lead to liquid leakage when using the pipe fittings for liquid transportation. Specifically, when the tightness at the ends of the pipe fittings is too high, the sealing ring at the ends of the pipe fittings can be damaged. When the tightness at the ends of the pipe fittings is too low, a gap can easily exist between the pipe fittings and the sealing ring, thus easily causing liquid leakage. Utility Model Content

[0005] The purpose of this disclosure is to provide a metal pipe fitting connection device that can at least solve one of the above-mentioned technical problems.

[0006] To achieve the above objectives, this disclosure provides a metal pipe fitting connector connection device, comprising a receiving sleeve and an insertion block. The receiving sleeve and the insertion block are both fitted or welded onto two pipe fittings to be connected, namely a first pipe fitting and a second pipe fitting. The receiving sleeve has two interconnected grooves, a first groove and a second groove, the size of which matches the cross-sectional size of the insertion block. A third groove is provided on the side wall of the second groove. A fourth groove is provided on the outside of the side wall of the insertion block. A spring is provided at the bottom of the fourth groove, and a stop block is provided above the spring. One end of the spring is fixedly connected to the bottom of the fourth groove, and the other end is fixedly connected to the stop block. A fifth groove is provided inside the insertion block.

[0007] Furthermore, the third groove is arranged in a ring along the inner wall of the second groove, and the fourth groove corresponds one-to-one with the third groove;

[0008] Furthermore, the stop has a set height to ensure that the sum of the length of the extended spring and the length of the stop is greater than the length of the fourth groove, and the sum of the length of the compressed spring and the length of the stop is less than or equal to the length of the fourth groove. The outer surface of the stop contacts the inner surface of the fourth groove or simultaneously contacts the inner surfaces of the third groove and the fourth groove.

[0009] Furthermore, the spring is a high-elasticity spring, and the elastic force provided by the spring can overcome the friction between the stop block and the side wall of the fourth groove or between the third groove and the side wall of the fourth groove.

[0010] Furthermore, the fourth groove is located in the middle of the insertion block, and the position of the third groove is reasonably arranged according to the selected sealing ring material and sealing ring thickness.

[0011] Furthermore, the receiving sleeve is cylindrical in shape, and the insertion block is cuboid in shape;

[0012] Furthermore, the first groove is circular, and the second groove is rectangular. During operation, the inner wall of the second groove contacts the outer wall of the insertion block.

[0013] Furthermore, a sealing ring is provided at the end of the first pipe fitting, and the sealing ring is attached to the end of the first pipe fitting with industrial adhesive;

[0014] Furthermore, the sealing ring is elastic;

[0015] Furthermore, the end of the first pipe fitting is flush with the inner end face of the first groove, the sealing ring extends into the second groove, and the end of the second pipe fitting is flush with the outer end face of the fifth groove.

[0016] The beneficial effects of one or more of the above technical solutions are as follows:

[0017] 1. This utility model discloses a metal pipe fitting connector connection device. When splicing two pipe fittings, the clamping force between the first and second pipe fittings is controlled by the cooperation of the third groove, the fourth groove, the spring, and the stop block. The position of the third groove is reasonably determined according to the material and thickness of the sealing ring, so as to ensure that the clamping force between the ends of the first and second pipe fittings can avoid gaps between the sealing ring and the end of the second pipe fitting, and also avoid excessive clamping force between the ends of the first and second pipe fittings, which would damage the sealing ring. By ensuring the accuracy of the clamping force between the ends of the first and second pipe fittings, liquid leakage is avoided when using pipe fittings to transport liquids.

[0018] 2. This application uses a stop post to fix the position of the receiving sleeve and the insertion block, and uses this to splice the first pipe fitting and the second pipe fitting. The connection method has strong stability and can effectively prevent the two connected pipe fittings from breaking. Attached Figure Description

[0019] Figure 1 This is an overall schematic diagram of the metal pipe fitting connector connection device provided in this embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the receiving sleeve of the metal pipe fitting joint connection device provided in this embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the insertion block of the metal pipe fitting connector connection device provided in this embodiment of the utility model;

[0022] Figure 4 This is a side view of the receiving sleeve of the metal pipe fitting connector connection device provided in this embodiment of the utility model;

[0023] Figure 5 This is a side view of the insertion block of the metal pipe fitting connector connecting device provided in this embodiment of the utility model.

[0024] In the diagram, 1 is the first pipe fitting; 2 is the second pipe fitting; 3 is the receiving sleeve; 4 is the first groove; 5 is the second groove; 6 is the third groove; 7 is the insertion block; 8 is the spring; 9 is the stop block; 10 is the fourth groove; 11 is the fifth groove; and 12 is the sealing ring. Detailed Implementation

[0025] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless otherwise expressly indicated by the invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] For ease of description, the use of the words "upper" and "lower" in this invention only indicates that they correspond to the upper and lower directions of the accompanying drawings and do not limit the structure. They are merely for the purpose of describing the invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0028] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, the present invention proposes a metal pipe fitting connector connection device.

[0029] like Figure 1 As shown, during use, the insertion block is placed into the second groove, and the stop block extends into the third groove under the action of the spring, completing the connection between the left and right pipe fittings. This device can ensure that the clamping force of the two pipe fittings is within a reasonable range, thereby avoiding leakage when conveying liquid.

[0030] like Figure 2 as well as Figure 4 As shown, the receiving sleeve 3 is provided with two interconnected first grooves 4 and second grooves 5. The first pipe 1 is fixedly connected to the receiving sleeve 3 by sleeve or welding. A sealing ring 12 is provided at the end of the first pipe 1. The end of the first pipe 1 is flush with the inner end face of the first groove 4. The sealing ring 12 extends into the second groove 5. A third groove 6 is provided on the inner wall of the second groove 5.

[0031] like Figure 3 as well as Figure 5 As shown, a fifth groove 11 is provided inside the insertion block 7. The second tube 2 is fixedly connected to the insertion block 7 by sleeve or welding. A fourth groove 10 is provided on the outer side wall of the insertion block 7. A spring 8 is provided at the bottom of the fourth groove 10, and a stop block 9 is provided on the upper part of the spring 8. One end of the spring 8 is fixedly connected to the bottom of the fourth groove 10, and the other end is fixedly connected to the stop block 9. The end of the second tube 2 is flush with the outer end face of the fifth groove 11. By making the end of the first tube 1 flush with the inner end face of the first groove 4, and by making the sealing ring 12 extend into the second groove 5, and by making the end of the second tube 2 flush with the outer end face of the fifth groove 11, the interference of the side wall of the first groove 4 on the insertion block 7 is avoided, thus preventing the end of the second tube 2 from squeezing the sealing ring 12.

[0032] like Figure 3 , Figure 4 as well as Figure 5As shown, the third groove 6 is arranged in a ring along the inner wall of the second groove 5. The fourth groove 10 corresponds one-to-one with the third groove 6. The stop block 9 has a set height to ensure that the sum of the extended length of the spring 8 and the length of the stop block 9 is greater than the length of the fourth groove 10, and the sum of the compressed length of the spring 8 and the length of the stop block 9 is less than or equal to the length of the fourth groove 10. The outer surface of the stop block 9 contacts the inner surface of the fourth groove 10, or simultaneously contacts the inner surfaces of the third groove 6 and the fourth groove 10. The spring 8 is a high-elasticity spring, and the elastic force provided by the spring 8 can overcome the friction between the stop block 9 and the side wall of the fourth groove 10, or between the side walls of the third groove 6 and the fourth groove 10. The fourth groove 10 is located in the insertion block 7. The position of the third groove 6 in the middle is reasonably arranged according to the material and thickness of the selected sealing ring 12. Specifically, the position of the third groove 6 is determined according to the compressive strength and thickness of the sealing ring 12 material. If the compressive strength and thickness of the sealing ring 12 material are small, the third groove 6 is set near the right opening of the receiving sleeve 3. If the compressive strength and thickness of the sealing ring 12 material are large, the third groove 6 is set gradually away from the right opening of the receiving sleeve 3. The compressive strength of different sealing ring 12 materials can be determined according to the current national standards or through compressive strength tests. That is, the determination of the compressive strength of different materials is common knowledge to those skilled in the art or can be obtained by conventional technical means, so it will not be described in detail.

[0033] The receiving sleeve is cylindrical in shape, and the insertion block 7 is cuboid in shape. The first groove 4 is circular, and the second groove 5 is cuboid in shape. The size of the second groove 5 matches the cross-sectional size of the insertion block 7. During operation, the inner wall of the second groove 5 contacts the outer wall of the insertion block 7. The sealing ring 12 is elastic. Since the sealing ring 12 is fixed in position by the clamping force of the first pipe 1 and the second pipe 2 during operation, the sealing ring 12 only needs to be temporarily fixed at the end of the first pipe 1 initially. Therefore, the sealing ring 12 described in this application is glued to the end of the first pipe 1 with industrial adhesive, which is easy to operate and has a low manufacturing cost.

[0034] Working principle:

[0035] When using this device, the receiving sleeve 3 and the insertion block 7 are first fixedly connected to the first pipe fitting 1 and the second pipe fitting 2 respectively by sleeve or welding. Then, the insertion block 7 is placed in the second groove 5, with the outer surface of the insertion block 7 contacting the inner surface of the second groove 5. The insertion block 7 moves axially within the second groove 5. Since the position of the third groove 6 is determined according to the material and thickness of the sealing element 12, when the tightening force of the second pipe fitting end against the sealing ring 12 meets the requirements, the stop block 9 enters the third groove 6 under the action of the spring 8, thereby... This avoids insufficient tightening force of the second pipe 2 end on the sealing ring, which would cause gaps between the first pipe 1, the sealing ring 12, and the end of the second pipe 2. It also avoids excessive compression of the sealing ring 12 by the end of the second pipe 2, which would damage the sealing ring 12. Furthermore, by aligning the end of the first pipe 1 with the inner end face of the first groove 4, and by having the sealing ring 12 extend into the second groove 5, and by aligning the end of the second pipe 2 with the outer end face of the fifth groove 11, this application avoids interference from the sidewall of the first groove 4 on the insertion block 7, thereby preventing the end of the second pipe 2 from compressing the sealing ring 12.

[0036] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A metal pipe fitting connector connection device, characterized in that, The device includes a receiving sleeve and an insertion block, both of which are fitted or welded onto two pipe fittings to be connected, namely a first pipe fitting and a second pipe fitting. The receiving sleeve has two interconnected grooves, a first groove and a second groove, the size of which matches the cross-sectional size of the insertion block. A third groove is provided on the side wall of the second groove. A fourth groove is provided on the outside of the side wall of the insertion block. A spring is provided at the bottom of the fourth groove, and a stop block is provided above the spring. One end of the spring is fixedly connected to the bottom of the fourth groove, and the other end is fixedly connected to the stop block. A fifth groove is provided inside the insertion block.

2. The metal pipe fitting connector connection device as described in claim 1, characterized in that, The third groove is arranged in a ring along the inner wall of the second groove, and the fourth groove corresponds one-to-one with the third groove.

3. The metal pipe fitting connector connection device as described in claim 1, characterized in that, The stop block has a set height to ensure that the sum of the length of the extended spring and the length of the stop block is greater than the length of the fourth groove, and the sum of the length of the compressed spring and the length of the stop block is less than or equal to the length of the fourth groove. The outer surface of the stop block is in contact with the inner surface of the fourth groove or simultaneously with the inner surfaces of the third groove and the fourth groove.

4. The metal pipe fitting connector connection device as described in claim 1, characterized in that, The spring is a high-elasticity spring, and the elastic force provided by the spring can overcome the friction between the stop block and the side wall of the fourth groove or between the third groove and the side wall of the fourth groove.

5. A metal pipe fitting connector connection device as described in claim 1, characterized in that, A sealing ring is provided at the end of the first pipe fitting, and the sealing ring is attached to the end of the first pipe fitting with industrial adhesive.

6. A metal pipe fitting connector connection device as described in claim 5, characterized in that, The fourth groove is located in the middle of the insertion block, and the position of the third groove is reasonably arranged according to the material and thickness of the selected sealing ring.

7. A metal pipe fitting connector connection device as described in claim 1, characterized in that, The receiving sleeve is cylindrical in shape, and the insertion block is rectangular in shape.

8. A metal pipe fitting connector connection device as described in claim 1, characterized in that, The first groove is circular, and the second groove is rectangular. During operation, the inner wall of the second groove contacts the outer wall of the insertion block.

9. A metal pipe fitting connector connection device as described in claim 5, characterized in that, The sealing ring is elastic.

10. A metal pipe fitting connector connection device as described in claim 5, characterized in that, The end of the first pipe fitting is flush with the inner end face of the first groove, the sealing ring extends into the second groove, and the end of the second pipe fitting is flush with the outer end face of the fifth groove.

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