A quick check pipe clamp

Abstract

The application provides a clamp-press pipe fitting for quickly checking a pipeline, which comprises a pipe fitting body, a check ring clamped and fixed outside the pipe fitting body, a press-steel sleeve clamped to the check ring in a sleeving manner outside the pipe fitting body, and an insertion space for inserting a pipe material formed between the pipe fitting body and the press-steel sleeve, wherein an outer wall of the press-steel sleeve is provided with a mark part for comparing with a press mark to check whether the press-steel sleeve is pressed in place, and an indicating petal is clamped to the press-steel sleeve and the check ring in a manner of adhering to the outer wall of the press-steel sleeve. The indicating petal is used for pre-connecting the press-steel sleeve and the check ring to prevent the clamp-press pipe fitting from being scattered during transportation. Whether the press-steel sleeve is pressed in place is checked by comparing the press mark with the mark part. The indicating petal is broken and falls off after being pressed, so that construction is avoided in the case that the press is not completed, and thus the connection is firm, safe and reliable.

Description

Technical Field

[0001] This invention relates to the field of pipe connection technology, and in particular to a crimp fitting for quick inspection of pipelines. Background Technology

[0002] Pipe fittings are a general term for components in pipelines that serve functions such as connection, control, direction change, flow diversion, sealing, and support. According to the connection method, they can be divided into threaded pipe fittings, clamp pipe fittings, and press-fit pipe fittings. Among them, press-fit pipe fittings are connectors that use socket pipe fittings with special sealing rings to connect pipes. The pipe ends are pressed with special tools to achieve sealing and fixing functions. They have the characteristics of being resistant to pull-out and rotation, simple and convenient to install, requiring little operating space, and requiring no maintenance after installation. Therefore, they are widely used.

[0003] On the one hand, during the installation of press-fit pipe fittings, after the pipe and fitting are connected, they are crimped together using a crimping tool. Because the pipe and fitting have a certain sealing effect, leaks will not occur in the short term at the un-crimped areas, but serious water leakage will occur in the fittings after a long time. It is evident that whether the fittings are crimped properly is an essential inspection step.

[0004] On the other hand, pipe fittings generally include the fitting body, retaining ring, crimp sleeve and sealing ring, etc., and are pre-assembled for use as a whole in pipeline construction. However, pipe fittings are prone to falling apart during transportation, which affects the efficiency of pipe fitting use. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a quick inspection pipe clamping fitting that allows for rapid remote inspection of whether the pipe is crimped and close-up inspection of whether it is properly crimped, while preventing the pipe from falling apart during transportation.

[0006] This invention provides a quick-inspection pipe clamping fitting, comprising:

[0007] One pipe fitting body;

[0008] A retaining ring is snapped and fixed to the outside of the pipe fitting body;

[0009] A crimping steel sleeve is fitted onto the retaining ring by being sleeved on the outside of the pipe fitting body, and an insertion space for inserting a pipe is formed between the pipe fitting body and the crimping steel sleeve. The outer wall of the crimping steel sleeve is provided with a marking part for comparison with the indentation to check whether it is crimped in place.

[0010] At least one indicator petal is engaged with the press-fit steel sleeve and the retaining ring respectively, in a manner that fits against the outer wall of the press-fit steel sleeve.

[0011] As a preferred technical solution, the outer wall of the pressing steel sleeve is provided with a plurality of steel sleeve slots, and the inner wall of the indicator petal is provided with a plurality of buckles. The indicator petal is engaged with the steel sleeve slots through the buckles and abuts against the retaining ring.

[0012] As a preferred technical solution, the lower part of the indicator petal is provided with a plurality of elastic grooves, and the upper part of the indicator petal is provided with a plurality of fracture grooves, wherein the fracture grooves and the elastic grooves are staggered along the edge of the indicator petal.

[0013] As a preferred technical solution, at least one of the elastic grooves is provided with buckles on both sides, and the buckles located on both sides of the same elastic groove are respectively engaged in the same steel sleeve groove.

[0014] As a preferred technical solution, the number of indicator petals is two, each indicator petal has two ends, and the two opposite ends of the indicator petals are respectively engaged in the same steel sleeve groove by the buckle.

[0015] As a preferred technical solution, the marking portion is formed by the recess of the crimping steel sleeve, and the inner wall of the crimping steel sleeve is provided with a steel sleeve protrusion opposite to the marking portion, the steel sleeve protrusion being used to fix the pipe.

[0016] As a preferred technical solution, a pipe fitting groove is provided on the outer wall of the pipe fitting body, the retaining ring is engaged in the pipe fitting groove, and a steel sleeve engaging part is provided on the edge of one end of the pressing steel sleeve, the steel sleeve engaging part is engaged in the retaining ring.

[0017] As a preferred technical solution, the retaining ring includes a retaining ring bottom, a retaining ring side, a retaining ring snap-fit ​​part, and a retaining ring step part. The retaining ring side is connected to the outer edges of the retaining ring bottom and the retaining ring step part, respectively. The retaining ring snap-fit ​​part is connected to the inner edge of the retaining ring bottom and snaps into the pipe fitting groove. The steel sleeve snap-fit ​​part snaps into the retaining ring bottom and the retaining ring step part, and the retaining ring step part surrounds and abuts against the outer wall of the press-fit steel sleeve.

[0018] As a preferred technical solution, the retaining ring further includes multiple retaining ring bosses. The retaining ring bosses and the side portion of the retaining ring are located on the upper and lower sides of the retaining ring step portion, and the retaining ring bosses are connected to the outer edge of the retaining ring step portion. A drop area is formed between two adjacent retaining ring bosses. The indicator petal is located between the pressing steel sleeve and the retaining ring bosses and abuts against the retaining ring step portion.

[0019] As a preferred technical solution, it also includes at least one sealing ring, and the outer wall of the pipe body is provided with a groove for fixing the sealing ring.

[0020] Compared with existing technologies, this technical solution has the following advantages:

[0021] The indicator petal is used to pre-connect the crimping steel sleeve and the retaining ring to prevent the crimped fitting from falling apart during transportation, thus affecting its efficiency. When the pipe is inserted into the insertion space, the crimping steel sleeve is crimped using a crimping tool. The indicator petal breaks and detaches during the crimping process, forming an indentation on the outer wall of the crimping steel sleeve, thereby sealing and fixing the crimped fitting to the pipe. At this point, comparing the indentation with the marking portion verifies whether the crimping is in place, facilitating close-range, rapid, and accurate inspection of the pipeline system. Furthermore, the indicator petal detaches from the drop area after the crimping breaks. This allows for rapid, easy inspection from a distance, avoiding construction before crimping is complete, thus ensuring a firm and reliable connection. Additionally, the indicator petal detaches from the drop area after the crimping breaks.

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the compression fitting for rapid pipeline inspection described in this invention;

[0024] Figure 2 This is an exploded view of the compression fitting for rapid pipeline inspection described in this invention;

[0025] Figure 3 This is a cross-sectional view of the compression fitting for rapid pipeline inspection described in this invention;

[0026] Figure 4 This is a schematic diagram of the structure of the retaining ring described in this invention;

[0027] Figure 5 This is a cross-sectional view of the retaining ring described in this invention;

[0028] Figure 6 This is a schematic diagram of the structure of the press-fit steel sleeve described in this invention;

[0029] Figure 7 This is a schematic diagram of the structure of the indicator lobe described in this invention;

[0030] Figure 8 This is a schematic diagram of the structure of the indicator lobe in another direction according to the present invention;

[0031] Figure 9 This is a schematic diagram of the structure of the quick-inspection pipeline clamping fitting after it is connected to the pipe according to the present invention;

[0032] Figure 10 This is a schematic diagram of the crimped fitting for quick inspection of pipelines as described in this invention.

[0033] In the diagram: 100 for quick inspection of pipeline crimp fittings, 1000 for insertion space, 110 for fitting body, 111 for fitting groove, 112 for groove, 120 for retaining ring, 121 for bottom of retaining ring, 122 for side of retaining ring, 123 for retaining ring snap-fit ​​part, 124 for step of retaining ring, 125 for retaining ring boss, 1200 for drop area, 130 for crimping steel sleeve, 131 for marking part, 132 for steel sleeve groove, 133 for steel sleeve protrusion, 134 for steel sleeve snap-fit ​​part, 1300 for indentation, 140 for indicator flap, 141 for fracture groove, 142 for elastic groove, 143 for buckle, 150 for sealing ring, and 200 for pipe. Detailed Implementation

[0034] The following description is intended to disclose the present invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0035] like Figures 1 to 10 As shown, the quick-check pipeline crimp fitting 100 includes:

[0036] One pipe fitting body 110;

[0037] A retaining ring 120 is snapped and fixed to the outside of the pipe fitting body 110;

[0038] A crimping steel sleeve 130 is fitted onto the retaining ring 120 by means of being sleeved on the outside of the pipe fitting body 110, and an insertion space 1000 for inserting the pipe 200 is formed between the pipe fitting body 110 and the crimping steel sleeve 130. The outer wall of the crimping steel sleeve 130 is provided with a marking part 131 for comparison with the indentation 1300 to check whether it is crimped in place.

[0039] At least one indicator petal 140 is engaged with the press-fit steel sleeve 130 and the retaining ring 120 respectively, in a manner that fits against the outer wall of the press-fit steel sleeve 130.

[0040] The indicator petal 140 is used to pre-connect the crimping steel sleeve 130 and the retaining ring 120 to prevent the crimped fitting 100 from falling apart during transportation, thus affecting its efficiency. When the pipe 200 is inserted into the insertion space 1000, the crimping steel sleeve 130 is crimped using a crimping tool. The indicator petal 140 breaks and falls off during the crimping process, and an indentation 1300 is formed on the outer wall of the crimping steel sleeve 130, thereby sealing and fixing the crimped fitting 100 to the pipe 200. At this time, the crimping is checked by comparing the indentation 1300 and the marking portion 131. The indentation 1300 consists of three concentric circles arranged from top to bottom. Figure 10 When the bottommost indentation 1300 aligns with the marking portion 131, it indicates that the crimping is in place, facilitating close-range, rapid, and accurate inspection of the piping system. Furthermore, the indicator petal 140 detaches from the drop area 1200 after the crimping breaks. This enables rapid, easy-to-read inspection from a distance, preventing construction from proceeding before the crimping is complete, thus ensuring a secure and reliable connection.

[0041] like Figures 1 to 3 , Figure 5 , Figure 7 and Figure 8 As shown, the outer wall of the pressing steel sleeve 130 is provided with a plurality of steel sleeve slots 132, and the inner wall of the indicator petal 140 is provided with a plurality of buckles 143. The indicator petal 140 is engaged with the steel sleeve slots 132 through the buckles 143 and abuts against the retaining ring 120.

[0042] When the indicator petal 140 is engaged with the steel sleeve groove 132 by the buckle 143, it prevents the indicator petal 140 from moving circumferentially along the pressing steel sleeve 130. When the indicator petal 140 abuts against the retaining ring 120, it prevents the indicator petal 140 from moving axially along the pressing steel sleeve 130.

[0043] Specifically, the crimping steel sleeve 130 is tubular and snaps onto the retaining ring 120, so that the crimping steel sleeve 130 is fitted over the outside of the pipe fitting body 110, and an insertion space 1000 for inserting the pipe 200 is formed between the pipe fitting body 110 and the crimping steel sleeve 130. The steel sleeve groove 132 is located near the retaining ring 120, and multiple steel sleeve grooves 132 are equidistantly spaced along the outer periphery of the crimping steel sleeve 130, and their shape may be waist-shaped. Each steel sleeve groove 132 can accommodate two buckles 143, the buckles 143 may be semi-circular or similar in shape, corresponding to the two sides of the steel sleeve groove 132 respectively.

[0044] like Figure 7 and Figure 8As shown, the indicator petal 140 is arc-shaped, the lower part of the indicator petal 140 abuts against the retaining ring 120, and the lower part of the indicator petal is provided with a plurality of elastic grooves 142, and the upper part of the indicator petal 140 is provided with a plurality of fracture grooves 141, the fracture grooves 141 and the elastic grooves 142 being staggered along the edge of the indicator petal 140.

[0045] The elastic groove 142 is provided to allow the indicator petal 140 to elastically deform, so that the indicator petal 140 can be engaged between the crimping steel sleeve 130 and the retaining ring 120. The fracture groove 141 is provided to allow the indicator petal 140 to break during the crimping process.

[0046] Specifically, the elastic groove 142 extends from the bottom to the top of the indicator petal 140, and the ratio of the depth of the elastic groove 142 to the width of the indicator petal 140 is not less than 2 / 3, wherein the width of the indicator petal 140 is the distance between the top and bottom of the indicator petal 140. The fracture groove 141 extends from the top to the bottom of the indicator petal 140, and the ratio of its depth to the width of the indicator petal 140 is not less than 2 / 3. This ensures the elastic deformation capability of the indicator petal 140 while preventing the indicator petal 140 from breaking during the pressing process.

[0047] More specifically, an elastic groove 142 is provided between two adjacent fracture grooves 141 to achieve the staggered arrangement of the fracture grooves 141 and the elastic groove 142, making the structure more symmetrical and better reflecting the elasticity and fracture function of the indicator petal 140.

[0048] like Figure 1 , Figure 7 and Figure 8 As shown, at least one of the elastic grooves 142 has a buckle 143 on each of its two sides, and the buckles 143 located on both sides of the same elastic groove 142 are respectively engaged in the same steel sleeve groove 132. This allows the two buckles 143 to elastically unfold under the action of the elastic groove 142 and abut and fix against both sides of the steel sleeve groove 132.

[0049] Preferably, the buckles 143 are provided at intervals in the plurality of elastic grooves 142. For example, in two adjacent elastic grooves 142, only one elastic groove 142 is provided with buckles 143 on both sides.

[0050] like Figure 2As shown, there are two indicator petals 140, each indicator petal 140 having two ends. The two indicator petals 140 are arranged opposite each other to form an annular structure that is adapted to the crimping steel sleeve 130. The ends of the two opposite indicator petals 140 are respectively snapped into the same steel sleeve groove 132 by the buckle 143.

[0051] like Figure 2 and Figure 6 As shown, the marking part 131 is formed by the recess of the crimping steel sleeve 130, and the inner wall of the crimping steel sleeve 130 is provided with a steel sleeve protrusion 133 opposite to the marking part 131. The steel sleeve protrusion 133 is used to fix the pipe 200.

[0052] Specifically, the number of the marking portion 131 and the steel sleeve protrusion 133 are the same, and they are formed together by riveting. That is, when the riveting tool applies pressure to the outside of the crimping steel sleeve 130, the crimping position simultaneously forms the recessed marking portion 131 and the steel sleeve protrusion 133, making the forming more convenient. The marking portion 131 is compared with the indentation 1300 to check whether it is crimped in place. The steel sleeve protrusion 133 is used to fix the pipe 200 before crimping to prevent the pipe 200 from falling off.

[0053] The number of marking portions 131 is the same as that of the steel sleeve groove 132. The marking portions 131 and the retaining ring 300 are located on both sides of the steel sleeve groove 132, and the marking portions 131 are arranged adjacent to the steel sleeve groove 132.

[0054] like Figure 2 , Figure 3 and Figure 6 As shown, a pipe fitting groove 111 is provided on the outer wall of the pipe fitting body 110, and the retaining ring 120 is engaged in the pipe fitting groove 111. A steel sleeve engaging part 134 is provided on the edge of one end of the pressing steel sleeve 130, and the steel sleeve engaging part 134 is engaged in the retaining ring 120.

[0055] Specifically, the steel sleeve engaging portion 134 is located near one end edge of the steel sleeve slot 132, and it is inclined outward to form the steel sleeve engaging portion 134, which engages with the retaining ring 120, and under the action of the indicator petal 140, a pre-connection is achieved.

[0056] like Figures 2 to 5As shown, the retaining ring 120 includes a retaining ring bottom 121, a retaining ring side 122, a retaining ring snap-fit ​​part 123, and a retaining ring step part 124. The retaining ring side 122 is connected to the outer edges of the retaining ring bottom 121 and the retaining ring step part 124 respectively. The retaining ring snap-fit ​​part 123 is connected to the inner edge of the retaining ring bottom 121 and snaps into the pipe fitting groove 111. The steel sleeve snap-fit ​​part 134 snaps into the retaining ring bottom 121 and the retaining ring step part 124, and the retaining ring step part 124 surrounds and abuts against the outer wall of the press-fit steel sleeve 130.

[0057] Specifically, the bottom 121 of the retaining ring, the side 122 of the retaining ring, the retaining ring snap-fit ​​portion 123, and the retaining ring stepped portion 124 are all annular. When the retaining ring snap-fit ​​portion 123 is snapped into the pipe fitting groove 111, the side 122 of the retaining ring and the stepped portion 124 of the retaining ring are arranged around the outside of the pipe fitting body 110. When the crimping steel sleeve 130 is snapped into the retaining ring 120, the steel sleeve snap-fit ​​portion 134 abuts against the bottom 121 of the retaining ring and is held between the bottom 121 of the retaining ring and the stepped portion 124 of the retaining ring, and the stepped portion 124 of the retaining ring abuts against the outer wall of the crimping steel sleeve 130 to complete the snap-fit ​​between the crimping steel sleeve 130 and the retaining ring 120.

[0058] like Figures 2 to 5 As shown, the retaining ring 120 also includes a plurality of retaining ring bosses 125. The retaining ring bosses 125 and the retaining ring side portion 122 are located on the upper and lower sides of the retaining ring step portion 124, and the retaining ring bosses 125 are connected to the outer edge of the retaining ring step portion 124. A drop area 1200 is formed between two adjacent retaining ring bosses 125. The indicator petal 140 is located between the pressing steel sleeve 130 and the retaining ring bosses 125 and abuts against the retaining ring step portion 124.

[0059] When the indicator petal 140 is crushed, it falls off from the drop area 1200.

[0060] like Figure 2 and Figure 3 As shown, it also includes at least one sealing ring 150, and a groove 112 for fixing the sealing ring 150 is provided on the outer wall of the pipe fitting body 110. The number of sealing rings 150 can be two, and they are arranged from top to bottom on the outer wall of the pipe fitting body 110. The sealing ring 150 can be a rubber O-ring.

[0061] The sealing ring 150 is located in the insertion space 1000. Its outer diameter after being installed in the groove 112 is consistent with the outer edge of the pipe body 110. It does not have a sealing effect when not pressed. After the pipe 200 is inserted into the insertion space 1000, the sealing ring 150 is held between the pipe body 110 and the pipe 200, thus playing a sealing role.

[0062] The assembly method of the quick-inspection pipeline crimp fitting 100 is as follows:

[0063] The first step is to fit the sealing ring 150 into the groove 112 on the pipe body 110.

[0064] In the second step, the retaining ring 120 is engaged with the pipe fitting groove 111 of the pipe fitting body 110 by the retaining ring engaging part 123, so as to realize the connection between the retaining ring 120 and the pipe fitting body 110.

[0065] The third step is to snap the steel sleeve snap-fit ​​portion 134 of the crimping steel sleeve 130 between the bottom 121 and the step portion 124 of the retaining ring 120 to achieve the connection between the crimping steel sleeve 130 and the retaining ring 120, and to form an insertion space 1000 for inserting the pipe 200 between the pipe body 110 and the crimping steel sleeve 130.

[0066] Fourth step, place the indicator petal 140 between the crimping steel sleeve 13 and the retaining ring boss 125, and use the buckle 143 on the inner wall of the indicator petal 140 to engage with the steel sleeve groove 132 on the crimping steel sleeve 130. At the same time, the lower edge of the indicator petal 140 abuts against the retaining ring step portion 124 to complete the assembly of the crimping fitting 100.

[0067] In summary, the indicator petal 140 is used to pre-connect the crimping steel sleeve 130 and the retaining ring 120 to prevent the crimped fitting 100 from falling apart during transportation, thus affecting its efficiency. When the pipe 200 is inserted into the insertion space 1000, the crimping steel sleeve 130 is crimped using a crimping tool. The indicator petal 140 breaks and falls off during the crimping process, and an indentation 1300 is formed on the outer wall of the crimping steel sleeve 130, thereby sealing and fixing the crimped fitting 100 to the pipe 200. At this time, by comparing the indentation 1300 and the marking part 131, it can be verified whether the crimping is in place, facilitating close-range, rapid, and accurate inspection of the pipeline system. Furthermore, after the indicator petal 140 breaks during crimping, it falls off from the drop area 1200. This enables rapid, easy-to-read inspection from a distance, avoiding construction before crimping is completed, thus ensuring a firm and reliable connection.

[0068] The embodiments described above are only used to illustrate the technical ideas and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. The scope of patent application of the present invention should not be limited by these embodiments. That is, any equivalent changes or modifications made in accordance with the spirit disclosed in the present invention still fall within the patent scope of the present invention.

Claims

1. A quick-inspection pipe clamping fitting (100), characterized in that, include: One pipe fitting body (110); A retaining ring (120) is snapped and fixed to the outside of the pipe fitting body (110); A crimping steel sleeve (130) is fitted onto the retaining ring (120) by being sleeved on the outside of the pipe fitting body (110), and an insertion space (1000) for inserting a pipe (200) is formed between the pipe fitting body (110) and the crimping steel sleeve (130). The outer wall of the crimping steel sleeve (130) is provided with a marking part (131) for comparing with the indentation (1300) to check whether it is crimped in place. At least one indicator petal (140) is engaged with the press-fit steel sleeve (130) and the retaining ring (120) respectively in a manner that fits against the outer wall of the press-fit steel sleeve (130); The outer wall of the crimping steel sleeve (130) is provided with a plurality of steel sleeve slots (132), and the inner wall of the indicator petal (140) is provided with a plurality of buckles (143). The indicator petal (140) is engaged with the steel sleeve slots (132) through the buckles (143) and abuts against the retaining ring (120). The retaining ring (120) includes a retaining ring stepped portion (124) and a plurality of retaining ring bosses (125). The retaining ring bosses (125) are connected to the outer edge of the retaining ring stepped portion (124) and are located on the upper side of the retaining ring stepped portion (124). The indicator petal (140) is located between the pressing steel sleeve (130) and the retaining ring bosses (125) and abuts against the retaining ring stepped portion (124).

2. The quick-inspection pipeline crimping fitting (100) as described in claim 1, characterized in that, The lower part of the indicator petal (140) is provided with a plurality of elastic grooves (142), and the upper part of the indicator petal (140) is provided with a plurality of fracture grooves (141). The fracture grooves (141) and the elastic grooves (142) are staggered along the edge of the indicator petal (140).

3. The quick-inspection pipeline crimping fitting (100) as described in claim 2, characterized in that, At least one elastic groove (142) has buckles (143) on both sides, and the buckles (143) located on both sides of the same elastic groove (142) are respectively engaged in the same steel sleeve groove (132).

4. The quick-inspection pipeline crimping fitting (100) as described in claim 2, characterized in that, The number of indicator petals (140) is two, and each indicator petal (140) has two ends. The two opposite ends of the indicator petals (140) are respectively engaged in the same steel sleeve groove (132) by the buckle (143).

5. The quick-inspection pipeline crimping fitting (100) as described in claim 1, characterized in that, The marking part (131) is formed by the recess of the crimping steel sleeve (130), and the inner wall of the crimping steel sleeve (130) is provided with a steel sleeve protrusion (133) opposite to the marking part (131), and the steel sleeve protrusion (133) is used to fix the pipe (200).

6. The quick-inspection pipeline crimping fitting (100) as described in claim 1, characterized in that, The outer wall of the fitting body (110) is provided with a fitting groove (111), the retaining ring (120) is engaged in the fitting groove (111), and the edge of one end of the pressing steel sleeve (130) is provided with a steel sleeve engaging part (134), the steel sleeve engaging part (134) is engaged in the retaining ring (120).

7. The quick-inspection pipeline crimping fitting (100) as described in claim 6, characterized in that, The retaining ring (120) includes a retaining ring bottom (121), a retaining ring side (122), and a retaining ring snap-fit ​​part (123). The retaining ring side (122) is connected to the outer edge of the retaining ring bottom (121) and the retaining ring step (124), respectively. The retaining ring snap-fit ​​part (123) is connected to the inner edge of the retaining ring bottom (121) and snaps into the pipe fitting groove (111). The steel sleeve snap-fit ​​part (134) snaps into the retaining ring bottom (121) and the retaining ring step (124), and the retaining ring step (124) surrounds and abuts against the outer wall of the press-fit steel sleeve (130).

8. The quick-inspection pipeline crimping fitting (100) as described in claim 7, characterized in that, The retaining ring boss (125) and the retaining ring side (122) are located on the upper and lower sides of the retaining ring step (124), and a drop area (1200) is formed between two adjacent retaining ring bosses (125).

9. The quick-inspection pipeline crimping fitting (100) as described in claim 1, characterized in that, It also includes at least one sealing ring (150), and the outer wall of the pipe body (110) is provided with a groove (112) for fixing the sealing ring (150).

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