Clamping type train pipeline high-sealing type connecting device

Abstract

The utility model discloses a clamping type train pipeline high sealing type connecting device which comprises a middle connecting pipe, a first pipeline and a second pipeline, the first pipeline and the second pipeline are movably connected to the two ends of the middle connecting pipe in an inserted mode, and a concave ring groove is formed in the middle of the surface of the middle connecting pipe. A rotating fastening ring and a rotating adjusting ring are installed in the concave ring groove, the rotating fastening ring is located in the rotating adjusting ring, the rotating adjusting ring conducts rotating adjustment on the rotating fastening ring, and four sliding grooves communicating with the concave ring groove are annularly formed in the two ends of the interior of the middle connecting pipe at equal intervals; the end of the first pipeline and the end of the second pipeline are both connected with clamping ends, and the clamping ends are clamped between the sliding grooves and the concave ring grooves and are fastened by rotating the fastening rings. The clamping type high-sealing type connecting device for the train pipeline is provided with a convenient and firm connecting and fixing structure and a quick dismounting structure, and the pipeline is firmly and reliably connected and is good in sealing performance through pipeline insertion and one-way extrusion.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline connection, and specifically relates to a high-sealing connection device for clamping type train pipelines. Background Art

[0002] The train pipeline system is a very important part of railway transportation, undertaking various functions, including water supply, gas supply, sewage discharge, braking, etc.; the connection between traditional two pipelines is rather troublesome, generally using threaded connection, clamp connection, gluing connection, crimping connection, etc. The connection operation of such pipeline components is inconvenient, and it is also not convenient to disassemble, and the sealing performance is not good, resulting in leakage. Therefore, in view of the above problems, improvement is needed now. Content of the Utility Model

[0003] In order to achieve the above object, the utility model provides the following technical solution: a high-sealing connection device for clamping type train pipelines, including a middle connecting pipe, a first pipeline and a second pipeline. The first pipeline and the second pipeline are movably inserted at both ends of the middle connecting pipe. A concave circular groove is opened in the middle of the surface of the middle connecting pipe. A rotating fastening ring and a rotating adjusting ring are installed inside the concave circular groove. The rotating fastening ring is located inside the rotating adjusting ring, and the rotating adjusting ring rotates and adjusts the rotating fastening ring. Four sliding grooves communicating with the concave circular groove are annularly and equidistantly opened at both ends inside the middle connecting pipe. The ends of the first pipeline and the second pipeline are both connected with clamping ends, and the clamping ends are clamped between the sliding grooves and the concave circular groove and are fastened by the rotating fastening ring.

[0004] Preferably, the clamping ends each include a pipeline connecting ring head fixedly connected to the ends of the first pipeline and the second pipeline. Clamping extrusion pins are fixedly installed at equal distances on the circumferential surface of the pipeline connecting ring head. Four right trapezoidal notches are annularly and equidistantly opened at both ends of the rotating fastening ring. The clamping extrusion pins slide through the sliding grooves and the concave circular groove and move into the inside of the right trapezoidal notches, so as to effectively carry out clamping connection.

[0005] Preferably, two first conical surfaces are symmetrically opened in the middle of the middle connecting pipe. Clamping rubber layers are fixedly installed inside the two first conical surfaces. A second conical surface matching the first conical surface is opened at the end of the pipeline connecting ring head. Four connecting blocks are fixedly connected at equal distances between the outer circumferential surface of the rotating fastening ring and the inner circumferential surface of the rotating adjusting ring, so as to effectively carry out adjustment.

[0006] Preferably, ratchet rings are fixedly installed at both ends inside the concave circular groove. A fixing block is fixedly installed on the inner circumferential surface of the rotating adjustment ring. Inverted T-shaped grooves are symmetrically formed at both ends of the fixing block. Inverted T-shaped pins are installed inside both inverted T-shaped grooves. Compression springs are fixedly connected between the inside of the inverted T-shaped grooves and one ends of the inverted T-shaped pins. Extrusion inclined surfaces matching the ratchet rings are formed at the other ends of the inverted T-shaped pins. The other ends of the two inverted T-shaped pins are respectively clamped with the two ratchet rings, so that one-way rotation adjustment can be stably and effectively carried out.

[0007] Preferably, through holes are formed between the inside of the two inverted T-shaped grooves and the surface of the rotating adjustment ring. Toggle blocks fixedly connected to the inverted T-shaped pins are arranged inside both through holes, so that disassembly and separation operations can be effectively carried out.

[0008] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing a middle connecting pipe, a first pipe, a second pipe, a concave circular groove, a rotating fastening ring, a rotating adjustment ring, a sliding groove and a clamping end, the clamping type high-sealing connection device for train pipes of the present utility model has a convenient and firm connection and fixing structure and a quick disassembly structure. Through the insertion of the pipes and the one-way extrusion of the pipes, the connection of the pipes is firm and reliable and has good sealing performance. At the same time, the connection and disassembly operations can be completed only by rotating and adjusting, so that the disassembly and assembly of the pipes are more convenient. In addition, the structure design of the pipe connection device of the present utility model is simple, the use and operation are convenient, the connection is stable and reliable, and its performance can meet the use requirements of train pipe connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model.

[0010] In the drawings:

[0011] Figure 1 is a schematic cross-sectional structure view of the clamping type high-sealing connection device for train pipes of the present utility model;

[0012] Figure 2 is a schematic structure view of the first pipe of the present utility model;

[0013] Figure 3 is the present utility model Figure 1 of the partial structure schematic view;

[0014] Figure 4 is the present utility model Figure 3 of the partial structure schematic Figure 1 ;

[0015] Figure 5 is the present utility model Figure 3The local structure of Figure 2 ;

[0016] Figure 6 For this utility model Figure 3 The local structure of Figure 3 ;

[0017] In the figure: 1, middle connecting pipe; 2, first pipeline; 3, second pipeline; 4, concave ring groove; 5, rotating fastening ring; 6, rotating adjustment ring; 7, sliding groove; 8, clamping end; 9, pipeline connecting ring head; 10, clamping extrusion pin; 11, right-angle trapezoidal notch; 12, first conical surface; 13, clamping rubber layer; 14, connecting block; 15, ratchet ring; 16, fixing block; 17, inverted T-shaped groove; 18, inverted T-shaped pin; 19, compression spring; 20, through sliding mouth; 21, toggle block. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] Depend on Figures 1 to 6 The utility model comprises a middle connecting pipe 1, a first pipe 2 and a second pipe 3. The first pipe 2 and the second pipe 3 are movably plugged at the two ends of the middle connecting pipe 1. A concave groove 4 is provided in the middle of the surface of the middle connecting pipe 1. A rotating fastening ring 5 and a rotating adjustment ring 6 are installed inside the concave groove 4. The rotating fastening ring 5 is located inside the rotating adjustment ring 6. The rotating adjustment ring 6 performs rotation adjustment on the rotating fastening ring 5. Four sliding grooves 7 connected to the concave groove 4 are provided in annular shapes at both ends of the middle connecting pipe 1 at equal distances. The ends of the first pipe 2 and the second pipe 3 are connected with clamping terminals 8. The clamping terminals 8 are clamped between the sliding groove 7 and the concave groove 4 and are fastened by the rotating fastening ring 5.

[0020] The clamping ends 8 each include a pipe connection collar head 9 fixedly connected to the ends of the first pipe 2 and the second pipe 3. The circumferential surface of the pipe connection collar head 9 is fixedly installed with clamping extrusion pins 10 at equal distances. Four right trapezoidal notches 11 are annularly and equidistantly formed at both ends of the rotating fastening ring 5. The clamping extrusion pins 10 slide through the sliding grooves 7 and the concave ring grooves 4 and move into the interior of the right trapezoidal notches 11, so that a clamping connection can be effectively carried out. Two first conical surfaces 12 are symmetrically formed in the middle of the middle connecting pipe 1. A clamping rubber layer 13 is fixedly installed inside each of the two first conical surfaces 12. The end of the pipe connection collar head 9 is provided with a second conical surface matching the first conical surface. Four connecting blocks 14 are fixedly connected at equal distances between the outer circumferential surface of the rotating fastening ring 5 and the inner circumferential surface of the rotating adjustment ring 6, so that effective adjustment can be carried out;

[0021] The first pipe 2 and the second pipe 3 are inserted into both ends of the middle connecting pipe 1 through the pipe connection collar head 9, so that the clamping extrusion pins 10 slide through the sliding grooves 7 and the concave ring grooves 4 and move into the interior of the right trapezoidal notches 11. At the same time, the second conical surface on the pipe connection collar head 9 is inserted into the interior of the first conical surface 12. Then, the rotating adjustment ring 6 is rotated to adjust the rotating fastening ring 5. The rotation of the rotating fastening ring 5 will extrude and move the clamping extrusion pins 10 through the inclined surface of the right trapezoidal notch 11, so that the clamping extrusion pins 10 drive the pipe connection collar head 9 and the second conical surface to be inserted into the interior of the first conical surface 12 and be extruded with the clamping rubber layer 13 to maintain the firmness and tightness of the connection.

[0022] Ratchet rings 15 are fixedly installed at both ends inside the concave ring grooves 4. A fixed block 16 is fixedly installed on the inner circumferential surface of the rotating adjustment ring 6. Inverted T-shaped grooves 17 are symmetrically formed at both ends of the fixed block 16. Inverted T-shaped pins 18 are installed inside both of the two inverted T-shaped grooves 17. Compression springs 19 are fixedly connected between the interior of the inverted T-shaped grooves 17 and one end of the inverted T-shaped pins 18. The other ends of the inverted T-shaped pins 18 are provided with extrusion inclined surfaces matching the ratchet rings 15. The other ends of the two inverted T-shaped pins 18 are respectively clamped with the two ratchet rings 15, so that stable and effective one-way rotation adjustment can be carried out; Through holes 20 are formed between the interior of the two inverted T-shaped grooves 17 and the surface of the rotating adjustment ring 6. Toggle blocks 21 fixedly connected to the inverted T-shaped pins 18 are arranged inside both of the two through holes 20, so that effective disassembly and separation operations can be carried out;

[0023] When connecting, the rotating adjustment ring 6 is rotated to drive the two inverted T-shaped pins 18 to move. The movement of the two inverted T-shaped pins 18 can only make the rotating adjustment ring 6 rotate in one direction through the contact between the extrusion inclined surface at the end thereof and the ratchet ring 15 and the reset action of the compression spring 19. At this time, the rotating adjustment ring 6 that rotates in one direction will squeeze and move the clamping extrusion pin 10 through the rotating fastening ring 5 and the inclined surface of the right-angled trapezoidal notch 11, so that the clamping extrusion pin 10 drives the pipe connection ring head 9 and the second conical surface to be inserted into the inside of the first conical surface 12 and squeeze the clamping rubber layer 13 to maintain the firmness and sealing of the connection, so that the first pipe 2 and the second pipe 3 can be firmly and tightly connected to the middle connecting pipe 1;

[0024] When disassembling the first pipe 2 and the second pipe 3, it is necessary to rotate the rotating adjustment circle 6 in the opposite direction. At this time, it is necessary to move the two toggle blocks 21 relative to each other. The two toggle blocks 21 moving relatively to each other will drive the inverted T-shaped pin 18 to move and compress the compression spring 19, thereby separating the inverted T-shaped pin 18 from the ratchet ring 15. At this time, the rotating adjustment circle 6 and the rotating fastening circle 5 can be rotated in the opposite direction to disassemble the first pipe 2 and the second pipe 3.

[0025] The present clamp-on train pipeline high-seal connection device has a convenient and firm connection fixing structure and a quick disassembly structure. Through the plugging of the pipeline and the unidirectional extrusion of the pipeline, the connection of the pipeline is firm, reliable and has good sealing performance. At the same time, the connection and disassembly operations can be completed by rotating and adjusting, thereby making the disassembly and assembly of the pipeline more convenient. In addition, the pipeline connection device has a simple structural design, is easy to use and operate, and has a stable and reliable connection. Its performance can meet the use requirements of train pipeline connections.

Claims

1. A snap - on type high - sealing connection device for train pipelines, comprising a middle connecting pipe (1), a first pipeline (2) and a second pipeline (3), characterized in that: The first pipe (2) and the second pipe (3) are movably plugged at the two ends of the middle connecting pipe (1); a concave groove (4) is provided in the middle of the surface of the middle connecting pipe (1); a rotating fastening ring (5) and a rotating adjustment ring (6) are installed inside the concave groove (4); the rotating fastening ring (5) is located inside the rotating adjustment ring (6); the rotating adjustment ring (6) performs rotation adjustment on the rotating fastening ring (5); four sliding grooves (7) in communication with the concave groove (4) are provided at equal intervals in an annular manner at both ends of the middle connecting pipe (1); the ends of the first pipe (2) and the second pipe (3) are connected with a clamping terminal (8); the clamping terminal (8) is clamped between the sliding groove (7) and the concave groove (4) and is fastened by the rotating fastening ring (5).

2. The high-sealing connection device for a clamping-type train pipeline according to claim 1, characterized in that: The clamping end heads (8) each comprise a pipe connection ring head (9) fixedly connected to the ends of the first pipe (2) and the second pipe (3); the circumferential surface of the pipe connection ring head (9) is fixedly provided with clamping extrusion pins (10) at equal distances; both ends of the rotating fastening ring (5) are provided with four right-angled trapezoidal notches (11) at equal distances in an annular manner; the clamping extrusion pins (10) slide and move into the inside of the right-angled trapezoidal notches (11) through the sliding groove (7) and the concave ring groove (4).

3. The high-sealing connection device for train pipelines with a snap connection type according to claim 1, wherein: Two first conical surfaces (12) are symmetrically provided in the middle of the middle connecting pipe (1), and a clamping rubber layer (13) is fixedly installed inside the two first conical surfaces (12). A second conical surface matching the first conical surface (12) is provided at the end of the pipe connecting ring head (9), and four connecting blocks (14) are fixedly connected at equal distances between the outer circumference of the rotating fastening ring (5) and the inner circumference of the rotating adjustment ring (6).

4. The snap - on type high - sealing connection device for train pipelines according to claim 1, characterized in that: Ratchet rings (15) are fixedly installed at both ends of the concave ring groove (4), a fixed block (16) is fixedly installed on the inner circumferential surface of the rotating adjustment ring (6), and inverted T-shaped grooves (17) are symmetrically provided at both ends of the fixed block (16), and inverted T-shaped pins (18) are installed inside the two inverted T-shaped grooves (17), and compression springs (19) are fixedly connected between the inside of the inverted T-shaped groove (17) and one end of the inverted T-shaped pin (18), and the other end of the inverted T-shaped pin (18) is provided with an extrusion inclined surface matching the ratchet ring (15), and the other ends of the two inverted T-shaped pins (18) are respectively clamped with the two ratchet rings (15).

5. The high-sealing connection device for a clamping type train pipeline according to claim 4, characterized in that: A through sliding opening (20) is provided between the inside of the two inverted T-shaped grooves (17) and the surface of the rotating adjustment ring (6), and a toggle block (21) fixedly connected to the inverted T-shaped pin (18) is provided inside the two through sliding openings (20).

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