Quick insertion structure

Abstract

The utility model relates to the technical field of pipeline connection, in particular to a quick insertion structure. A quick insertion structure comprises a main body and further comprises an auxiliary pipe pulling device, one end of the main body is an insertion end, the other end of the main body is a screw joint end, and the auxiliary pipe pulling device is used for acting on the insertion end and facilitating pulling out of a pipeline inserted into the insertion end from the insertion end. The quick connector has the advantages that the auxiliary pipe drawing device acts on the inserting end so that a pipeline can be conveniently drawn out of the inserting end, the quick connector can be conveniently detached, the maintenance cost is reduced, and the part damage probability is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of pipe connection, in particular to a quick plug structure. BACKGROUND

[0002] In modern industrial production and daily life, the connection technology of the pipe system is an important link for guaranteeing the stability and efficiency of the transmission of various media, with the accelerated development of industrialization, the quick plug connector as an efficient and convenient pipe connection tool has been widely used in petroleum chemical industry, water treatment, pneumatic control and other fields, the quick plug connector significantly improves the work efficiency of equipment installation and maintenance with the characteristics of simple operation process and rapid response, and also brings considerable cost saving advantage for enterprises of different scales.

[0003] However, in the process of pursuing higher technical level, people gradually realize that the traditional quick plug connector still has some design shortcomings that need to be improved, the traditional quick plug connector generally has a problem: once the assembly is completed, the subsequent disassembly operation is often difficult, which not only increases the maintenance cost, but also may damage the parts and even cause safety accidents. CONTENT OF THE INVENTION

[0004] In order to facilitate the disassembly of the quick plug connector, reduce the maintenance cost and reduce the probability of part damage, the application provides a quick plug structure.

[0005] The quick plug structure provided by the application adopts the following technical scheme: a main body, an auxiliary pipe puller, one end of the main body is a plug-in end, the other end of the main body is a screw end, the auxiliary pipe puller is used for acting on the plug-in end and facilitating the pipe inserted into the plug-in end to be pulled out from the plug-in end.

[0006] By adopting the above technical scheme, the auxiliary pipe puller acts on the plug-in end to facilitate the pipe to be pulled out from the plug-in end, which facilitates the disassembly of the quick plug connector, reduces the maintenance cost and reduces the probability of part damage.

[0007] Preferably, a reinforcing sleeve is arranged in the plug-in end, the reinforcing sleeve and the plug-in end are concentric circles along the axial projection of the plug-in end, the distance between the reinforcing sleeve and the plug-in end along the radial direction of the reinforcing sleeve is used for inserting the pipe, one end of the reinforcing sleeve close to the plug-in end is coaxially sleeved with an annular protruding part, a first annular shoulder is circumferentially arranged on the inner wall of the plug-in end, and the bottom of the annular protruding part is used for abutting against the first annular shoulder.

[0008] By adopting the technical scheme, the path for inserting the pipeline is formed between the reinforcing sleeve and the inner wall of the inserting end, and the first annular shoulder circumferentially arranged on the inner wall of the inserting end plays a supporting role. When the annular protruding part is pushed to the predetermined position, the bottom of the annular protruding part just abuts against the first annular shoulder, so that the stability of the structure is ensured.

[0009] Preferably, the inserting end is internally provided with a clamping sleeve, the clamping sleeve is arranged between the inserting end and the reinforcing sleeve, the inserting end, the clamping sleeve and the reinforcing sleeve are concentric circles in the axial projection of the inserting end, the clamping sleeve is used for abutting against the outer wall of the pipeline, and the clamping sleeve is used for maintaining the state that the pipeline is inserted into the inserting end.

[0010] By adopting the technical scheme, the function of the clamping sleeve is to tightly wrap the outer surface of the pipeline entering the inserting end, so that the stable connection state between the quick connecting structure and the pipeline is maintained.

[0011] Preferably, a plurality of expansion openings are arranged on the sleeve wall of the clamping sleeve, the plurality of expansion openings are circumferentially and equiangularly arranged, the expansion openings penetrate the sleeve wall of the clamping sleeve in the radial direction of the clamping sleeve, and the length direction of the expansion openings is parallel to the axial direction of the clamping sleeve.

[0012] By adopting the technical scheme, the arrangement of the plurality of expansion openings enhances the gripping force of the clamping sleeve, and facilitates the subsequent disengagement of the pipeline from the inserting end.

[0013] Preferably, the bottom of the clamping sleeve is divided into a plurality of pointed parts by the arrangement of the expansion openings, a plurality of clamping teeth are arranged on one side of each pointed part close to the side wall of the reinforcing sleeve, and the plurality of clamping teeth are equidistantly arranged on the pointed part in the axial direction of the clamping sleeve.

[0014] By adopting the technical scheme, the plurality of clamping teeth on the plurality of pointed parts are arranged in rows, and the plurality of clamping teeth cooperatively realize the more firm and reliable holding effect on the pipeline.

[0015] Preferably, a second annular shoulder is circumferentially arranged on the inner wall of the inserting end, the second annular shoulder is arranged at the end away from the screwing end of the first annular shoulder, a first O-shaped sealing ring is arranged in the inserting end, the first O-shaped sealing ring abuts against the second annular shoulder, the inner wall of the first O-shaped sealing ring abuts against the pipeline, and the outer wall of the first O-shaped sealing ring abuts against the inner wall of the inserting end.

[0016] By adopting the technical scheme, the first O-shaped sealing ring is closely attached to the adjacent contact surface, so that the sealing performance between the inserting end and the pipeline is improved.

[0017] Preferably, a hand ring is sleeved on the screw joint end, the hand ring is arranged at one end of the screw joint end close to the plug-in end, a plurality of cut surfaces are arranged on the outer wall of the hand ring, the plurality of cut surfaces are sequentially arranged along the circumferential direction of the screw joint end, and the arrangement direction of the cut surfaces is perpendicular to the radial direction of the hand ring.

[0018] By adopting the above technical scheme, the plurality of cut surfaces on the hand ring facilitate the rotation of the quick plug structure to realize the screw joint relationship.

[0019] Preferably, a clamping groove is arranged on the end face of the hand ring away from the plug-in end along the circumferential direction of the hand ring, and a second O-shaped sealing ring is arranged on the hand ring and embedded in the clamping groove.

[0020] By adopting the above technical scheme, the second O-shaped sealing ring is embedded in the clamping groove, so that the second O-shaped sealing ring can be stably embedded in the clamping groove, the sealing is improved, and mechanical shock impact is also relieved to a certain extent.

[0021] In summary, the present application has at least one of the following beneficial technical effects:

[0022] 1. The auxiliary pipe extractor acts on the plug-in end to facilitate the extraction of the pipeline from the plug-in end, facilitate the disassembly of the quick plug connector, reduce the maintenance cost, and reduce the probability of part damage;

[0023] 2. The plurality of expansion heads enhance the gripping force of the clamping sleeve and facilitate the subsequent disengagement of the pipeline from the plug-in end;

[0024] 3. The plurality of clamping teeth on the plurality of sharp portions are arranged in rows and cooperatively achieve a more firm and reliable holding effect on the pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic view of the overall structure of the straight-through connector of the present application;

[0026] Figure 2 is a schematic view of the structure of the auxiliary pipe extractor of the present application;

[0027] Figure 3 is a top view of the overall structure of the straight-through connector of the present application;

[0028] Figure 4 is Figure 3 is a schematic view of the structure of the auxiliary pipe extractor of the present application;

[0029] Figure 5 is a schematic view of the structure of the clamping sleeve of the present application;

[0030] Figure 6 is a schematic view of the overall structure of the straight-through connector of the present application from another perspective;

[0031] Figure 7 is the overall structure schematic diagram of the corner joint of the present application;

[0032] Figure 8 is the top view schematic diagram of the overall structure of the corner joint of the present application;

[0033] Figure 9 is Figure 8 is the A-A section view schematic diagram in

[0034] Reference signs: 110, main body; 111, plug-in end; 112, screwing end; 113, reinforcing sleeve; 114, annular protrusion; 115, first annular shoulder; 116, second annular shoulder; 120, clamping sleeve; 121, expansion opening; 122, sharp part; 123, clamping tooth; 124, protruding ring; 130, hand ring; 131, cutting surface; 132, clamping groove; 140, first O-shaped sealing ring; 141, second O-shaped sealing ring; 150, auxiliary pipe puller; 151, circular ring head; 152, protruding sleeve ring; 153, insertion opening. DETAILED DESCRIPTION

[0035] The present application is further described in detail below in combination with the drawings.

[0036] The present application discloses a quick plug structure for facilitating the disassembly of the quick plug joint, reducing maintenance cost and reducing the probability of part damage.

[0037] Reference Figure 1 , Figure 2 , a quick plug structure, comprising a main body 110 and an auxiliary pipe puller 150, wherein one end of the main body 110 is a plug-in end 111, the other end of the main body 110 is a screwing end 112, the auxiliary pipe puller 150 is used for acting on the plug-in end 111 and facilitating the pipe inserted into the plug-in end 111 to be pulled out from the plug-in end 111, the auxiliary pipe puller 150 acting on the plug-in end 111 facilitates the pipe to be pulled out from the plug-in end 111, which facilitates the disassembly of the quick plug joint, reduces the maintenance cost and reduces the probability of part damage, and such design can significantly improve the work efficiency and reduce the risk of leakage caused by improper operation.

[0038] Specifically, reference Figure 3 , Figure 4The reinforcing sleeve 113 is coaxially sleeved on one end of the reinforcing sleeve 113 close to the plug-in end 111, and the annular protruding part 114 is made of plastic or rubber and has a certain elastic restoring force. The first annular shoulder part 115 is circumferentially arranged on the inner wall of the plug-in end 111, and the bottom of the annular protruding part 114 is used to abut against the first annular shoulder part 115. The first annular shoulder part 115 plays a supporting role. When the annular protruding part 114 is pushed to the predetermined position, the bottom of the annular protruding part 114 abuts against the first annular shoulder part 115, thereby ensuring the stability of the structure.

[0039] Further, referring to Figure 4 、 Figure 5 The clamping sleeve 120 is arranged between the plug-in end 111 and the reinforcing sleeve 113, and the plug-in end 111, the clamping sleeve 120 and the reinforcing sleeve 113 are concentrically projected along the axial direction of the plug-in end 111. The clamping sleeve 120 is used to abut against the outer wall of the pipe and to keep the pipe inserted into the plug-in end 111. The clamping sleeve 120 tightly wraps the outer surface of the pipe entering the plug-in end 111, thereby maintaining the stable connection between the quick connection structure and the pipe.

[0040] In order to enhance the gripping force of the clamping sleeve 120 and facilitate the subsequent disengagement of the pipe from the plug-in end 111, a plurality of expansion openings 121 are arranged on the sleeve wall of the clamping sleeve 120. The expansion openings 121 are equally angularly spaced apart along the circumferential direction of the clamping sleeve 120. The expansion openings 121 penetrate the sleeve wall of the clamping sleeve 120 along the radial direction of the clamping sleeve 120. The length direction of the expansion openings 121 is parallel to the axial direction of the clamping sleeve 120. A protruding ring 124 is arranged on the clamping sleeve 120 to facilitate positioning during disassembly. The expansion openings 121 penetrate the sleeve wall of the clamping sleeve 120, and the protruding ring 124 is also penetrated. Each expansion opening 121 divides the lower part of the clamping sleeve 120 into a plurality of small wedge-shaped areas, i.e., the sharp part 122. The plurality of sharp parts 122 are uniformly distributed along the circumferential direction of the clamping sleeve 120 and extend in a long strip shape parallel to the longitudinal axis of the clamping sleeve 120.

[0041] Due to the cutting seam layout, when external force is applied to the clamping sleeve 120, the parts will expand accordingly, thereby reducing the pressure constraint on the internal pipeline, and each sharp portion 122 is provided with a plurality of clamping teeth 123 on one side of the sidewall of the reinforcing sleeve 113, the plurality of clamping teeth 123 are arranged on the sharp portion 122 at equal intervals in the axial direction of the clamping sleeve 120, and the plurality of clamping teeth 123 on the plurality of sharp portions 122 are arranged in rows and cooperate to achieve a more secure and reliable holding effect on the pipeline.

[0042] With reference to Figure 4 、 Figure 6 , the threaded end 112 is sleeved with a hand ring 130, the hand ring 130 is arranged on one end of the threaded end 112 close to the plug-in end 111, a plurality of cutting surfaces 131 are formed on the outer wall of the hand ring 130, the plurality of cutting surfaces 131 are sequentially formed in the circumferential direction of the threaded end 112, and the cutting surfaces 131 are formed in a direction perpendicular to the radial direction of the hand ring 130. The plurality of cutting surfaces 131 on the hand ring 130 facilitate the rotation of the quick plug-in structure to achieve a threaded relationship.

[0043] To further improve the sealing performance, a second annular shoulder 116 is formed on the inner wall of the plug-in end 111 in the circumferential direction, the second annular shoulder 116 is formed on one end of the first annular shoulder 115 away from the threaded end 112, a first O-shaped sealing ring 140 is arranged in the plug-in end 111, the first O-shaped sealing ring 140 abuts against the second annular shoulder 116, the inner wall of the first O-shaped sealing ring 140 abuts against the pipeline, the outer wall of the first O-shaped sealing ring 140 abuts against the inner wall of the plug-in end 111, the first O-shaped sealing ring 140 closely contacts the adjacent contact surface, thereby improving the sealing performance between the plug-in end 111 and the pipeline; a clamping groove 132 is formed on the end face of one end of the hand ring 130 away from the plug-in end 111 in the circumferential direction of the hand ring 130, a second O-shaped sealing ring 141 is arranged on the hand ring 130, and the second O-shaped sealing ring 141 is embedded in the clamping groove 132, so that the second O-shaped sealing ring 141 can be stably embedded in the clamping groove 132, thereby improving the sealing performance and relieving mechanical shock to a certain extent.

[0044] In addition, with reference to Figure 2 、 Figure 4The auxiliary pipe puller 150 includes a circular head 151 and a raised collar 152. The raised collar 152 and the circular head 151 are coaxially arranged. The inner diameter of the raised collar 152 is the same as the inner diameter of the circular head 151. The circular head 151 is used to fit onto the pipe. An insertion port 153 for pipe insertion is opened on one side of the circular head 151 radially. The insertion port 153 is connected to the inner ring of the circular head 151. When the circular head 151 is fitted onto the pipe and slides along the pipe axis to abut against the main body 110, the raised collar 152 abuts against the clamping sleeve 120, pressing the auxiliary pipe puller 150 toward the main body 110. The raised collar 152 applies force to the clamping sleeve 120, causing the multiple tips 122 to expand outward and no longer squeeze the pipe, thus facilitating the removal of the pipe from the insertion end 111.

[0045] In this embodiment, the main body 110 is a straight-through connector, which is suitable for straight-through pipes. The inlet and outlet channels of the straight-through pipe are designed in the same direction, forming a 180° angle. The fluid flows in a straight line in the pipe, with low flow resistance and large flow rate.

[0046] In another embodiment, reference Figures 7-9 The main body 110 is an angle-type connector, which is suitable for angle-type pipes. The inlet and outlet of the angle-type pipe are at a 90-degree angle. When the fluid passes through, it will generate a vortex, which enhances the self-cleaning ability. It is suitable for high-viscosity fluids containing suspended solids and particulate fluids.

[0047] The implementation principle of the quick-connect structure in this application embodiment is as follows: when the annular head 151 is fitted onto the pipe and slides along the pipe axis to abut against the main body 110, the protruding collar 152 abuts against the clamping sleeve 120, and the auxiliary pipe puller 150 is pressed towards the main body 110. The protruding collar 152 applies force to the clamping sleeve 120, causing the multiple tips 122 to expand outward and no longer squeeze the pipe, so that the pipe can be easily pulled out from the plug end 111, which facilitates the removal of the quick-connect connector, reduces maintenance costs, and reduces the probability of component damage.

[0048] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A quick plug structure comprising a main body (110), characterized in that: Also included is an auxiliary tube extractor (150), one end of the main body (110) is a plug-in end (111), the other end of the main body (110) is a screw end (112), the auxiliary tube extractor (150) is used for acting on the plug-in end (111) and facilitating the pipe inserted into the plug-in end (111) to be pulled out from the plug-in end (111).

2. A quick connect structure according to claim 1, wherein: The plug-in end (111) is provided with a reinforcing sleeve (113), the reinforcing sleeve (113) and the plug-in end (111) are concentric circles along the axial projection of the plug-in end (111), and the distance between the reinforcing sleeve (113) and the plug-in end (111) along the radial direction of the reinforcing sleeve (113) is used for inserting the pipe, one end of the reinforcing sleeve (113) close to the plug-in end (111) is coaxially sleeved with an annular protruding portion (114), a first annular shoulder (115) is circumferentially arranged on the inner wall of the plug-in end (111), and the bottom of the annular protruding portion (114) is used for abutting against the first annular shoulder (115).

3. A quick connect structure according to claim 2, wherein: The plug-in end (111) is provided with a clamping sleeve (120), the clamping sleeve (120) is arranged between the plug-in end (111) and the reinforcing sleeve (113), the plug-in end (111), the clamping sleeve (120) and the reinforcing sleeve (113) are concentric circles along the axial projection of the plug-in end (111), and the clamping sleeve (120) is used for abutting against the outer wall of the pipe and maintaining the state that the pipe is inserted into the plug-in end (111).

4. A quick connect structure according to claim 3, wherein: A plurality of expansion openings (121) are arranged on the sleeve wall of the clamping sleeve (120), the plurality of expansion openings (121) are equiangularly and circumferentially arranged, the expansion openings (121) penetrate the sleeve wall of the clamping sleeve (120) along the radial direction of the clamping sleeve (120), and the length direction of the expansion openings (121) is parallel to the axial direction of the clamping sleeve (120).

5. A quick connect structure according to claim 4, wherein: The arrangement of the expansion openings (121) divides the bottom of the clamping sleeve (120) into a plurality of pointed portions (122), a plurality of clamping teeth (123) are arranged on the side wall of each pointed portion (122) close to the reinforcing sleeve (113), and the plurality of clamping teeth (123) are equidistantly and axially arranged on the pointed portion (122).

6. A quick connect structure according to claim 2, wherein: A second annular shoulder (116) is circumferentially arranged on the inner wall of the plug-in end (111), the second annular shoulder (116) is arranged at one end of the first annular shoulder (115) away from the screw end (112), the plug-in end (111) is provided with a first O-shaped sealing ring (140), the first O-shaped sealing ring (140) abuts against the second annular shoulder (116), the inner wall of the first O-shaped sealing ring (140) abuts against the pipe, and the outer wall of the first O-shaped sealing ring (140) abuts against the inner wall of the plug-in end (111).

7. The quick connect structure of claim 1, wherein: The screw joint end (112) is sleeved with a hand ring (130), which is arranged at one end of the screw joint end (112) close to the plug-in end (111), and a plurality of cut surfaces (131) are arranged on the outer wall of the hand ring (130) and sequentially arranged along the circumference of the screw joint end (112), and the cut surfaces (131) are arranged in a direction perpendicular to the radial direction of the hand ring (130).

8. A quick connect structure according to claim 7, wherein: An end face of the hand ring (130) away from the plug-in end (111) is provided with a clamping groove (132) along the circumference of the hand ring (130), and the hand ring (130) is provided with a second O-shaped sealing ring (141), and the second O-shaped sealing ring (141) is embedded in the clamping groove (132).

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