Pipeline connecting device

Abstract

The utility model discloses a pipeline connecting device which comprises a connecting sleeve, connectors, an adjusting rod and a sealing ring, the connectors are fixed to the two ends of the connecting sleeve, fastening bolts are arranged at the two ends of each connector, fastening nuts are installed at the ends of the fastening bolts, a first rubber clamping head is arranged at one end of the connecting sleeve in a bonding mode, and a second rubber clamping head is arranged at the other end of the connecting sleeve in a bonding mode. A second clamping groove is formed in the position, located on the side of the first rubber clamping head, of the connecting sleeve, a second rubber clamping head is arranged at the other end of the connecting sleeve in a bonding mode, a first clamping groove is formed in the position, located on the side of the second rubber clamping head, of the connecting sleeve, and adjusting rods are rotationally connected to the middles of the upper end and the lower end of the connecting sleeve correspondingly. According to the pipeline connecting device, the extrusion rings are arranged at the two ends of the sealing ring, when the pipeline connecting device is used, the two-way lead screw drives the extrusion blocks at the two ends of the limiting block to extrude the extrusion rings, so that the extrusion rings inwards give out acting force to extrude the sealing ring, the tightness between the sealing ring and the pipeline is improved, and the sealing effect of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of municipal water supply and drainage, in particular to a pipeline connecting device. BACKGROUND

[0002] In the process of municipal water supply and drainage, two pipelines need to be connected through a pipeline connecting device, which facilitates drainage and maintenance and replacement between pipelines.

[0003] The existing pipeline connecting device seals the pipeline and the device with a simple sealing ring, which is not tight enough and causes water seepage after a long time. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a pipeline connecting device to solve the problem of the existing pipeline connecting device, which seals the pipeline and the device with a simple sealing ring, which is not tight enough and causes water seepage after a long time.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a pipeline connecting device, comprising a connecting sleeve, a connecting head, an adjusting rod and a sealing ring, the connecting sleeve is fixed with a connecting head at both ends, and the connecting head is provided with a fastening bolt at both ends, the end of the fastening bolt is provided with a fastening nut, one end of the connecting sleeve is provided with a first rubber chuck, and a second clamping groove is formed on the side of the first rubber chuck, the other end of the connecting sleeve is provided with a second rubber chuck, and a first clamping groove is formed on the side of the second rubber chuck, the upper and lower sides of the connecting sleeve and both ends of the connecting sleeve are provided with cavities, the middle of the upper and lower ends of the connecting sleeve is rotatably connected with an adjusting rod, and the inner end of the adjusting rod is fixed with a first bevel gear, the middle of the fixed block is rotatably connected with a bidirectional screw rod, the inner cavity of both ends of the connecting sleeve is provided with an extrusion ring, the upper end of the extrusion ring is provided with an extrusion block, the lower side of the connecting sleeve is provided with a sealing ring below the extrusion ring, and the inner side of the connecting sleeve is provided with a protective pad between the two sealing rings.

[0006] Preferably, the first rubber chuck and the second rubber chuck are arc-shaped, and the first rubber chuck is located outside the second rubber chuck.

[0007] Preferably, the first rubber clamping head and the second clamping groove and the second rubber clamping head and the first clamping groove are clamped.

[0008] Preferably, the middle part of the bidirectional screw rod is fixed with a second bevel gear, and the second bevel gear is in meshing connection with the first bevel gear below the adjusting rod.

[0009] Preferably, the longitudinal section of the extrusion block and the extrusion ring is in a right-angled trapezoidal shape, and the lower end surface of the extrusion ring is bonded to the middle part of the sealing ring.

[0010] Preferably, the upper and lower ends of the extrusion block are fixed with limiting blocks, a threaded hole is formed in the middle part of one side of the limiting block, the limiting block and the bidirectional screw rod are in threaded connection, the limiting block and the inner cavity on the upper and lower sides of the surface of the connecting sleeve are in clamping sliding connection, and the movement directions of the two groups of limiting blocks on the bidirectional screw rod are opposite.

[0011] Compared with the prior art, the pipe connecting device has the advantages that,

[0012] The first rubber clamping head and the second rubber clamping head at the two ends of the connecting sleeve are matched with the clamping between the first clamping groove and the second clamping groove, the end part of the connecting sleeve can be tightly locked under the fixing action of the fastening bolt and the fastening nut, and the firmness of the connection between the device and the pipeline is improved.

[0013] The extrusion ring is arranged at the two ends of the sealing ring, the extrusion block at the two ends of the limiting block is extruded by the bidirectional screw rod during use, the extrusion ring is extruded inward to extrude the sealing ring, the tightness between the sealing ring and the pipeline is improved, and the sealing effect of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view structural schematic diagram of the utility model;

[0015] Figure 2 It is a side view structural schematic diagram of the utility model;

[0016] Figure 3 It is a front view structural schematic diagram of the utility model;

[0017] Figure 4 It is a side view structural schematic diagram of the utility model;

[0018] Figure 5 It is a connecting structure schematic diagram of the extrusion ring and the extrusion block of the utility model.

[0019] In the figure: 1, connecting sleeve; 2, connecting head; 3, fastening bolt; 4, fastening nut; 5, first rubber clamp; 6, second rubber clamp; 7, first clamping groove; 8, second clamping groove; 9, inner cavity; 10, adjusting rod; 11, first bevel gear; 12, fixed block; 13, bidirectional screw rod; 14, second bevel gear; 15, extrusion block; 16, extrusion ring; 17, sealing ring; 18, protective pad; 19, limiting block; 20, threaded hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to 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 the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a pipeline connecting device, including connecting sleeve 1, connecting head 2, adjusting rod 10 and sealing ring 17, the both ends of connecting sleeve 1 are fixed with connecting head 2, and the both ends of connecting head 2 are provided with fastening bolt 3, the end of fastening bolt 3 is equipped with fastening nut 4, one end of connecting sleeve 1 is adhesively provided with first rubber clamp 5, and second clamping groove 8 is set up in the side of first rubber clamp 5 on connecting sleeve 1, the other end of connecting sleeve 1 is adhesively provided with second rubber clamp 6, and first clamping groove 7 is set up in the side of second rubber clamp 6 on connecting sleeve 1, first rubber clamp 5 and second rubber clamp 6 are arc-shaped, and first rubber clamp 5 is located at the outside of second rubber clamp 6, first rubber clamp 5 and second clamping groove 8 and second rubber clamp 6 and first clamping groove 7 are all engaged, and the use of rubber clamp and clamping groove that are mutually staggered can firmly lock connecting sleeve 1 when fixing, improve the firmness of connecting sleeve 1 and pipeline connection, the upper and lower sides of connecting sleeve 1 and the both ends of connecting sleeve 1 are provided with inner cavity 9, the middle of the both ends of connecting sleeve 1 is rotatably connected with adjusting rod 10, and the inner end of adjusting rod 10 is fixed with first bevel gear 11, the middle of fixed block 12 is rotatably connected with bidirectional screw rod 13, and the middle of bidirectional screw rod 13 is fixed with second bevel gear 14, second bevel gear 14 and first bevel gear 11 below adjusting rod 10 are meshing connection, first bevel gear 11 drives second bevel gear 14 on the surface of bidirectional screw rod 13 to mesh and rotate by rotating adjusting rod 10, so that bidirectional screw rod 13 rotates on fixed block 12.

[0022] Please refer to Figures 1-5The inner cavity 9 at both ends of the connecting sleeve 1 is provided with an extrusion ring 16, and the upper end of the extrusion ring 16 is provided with an extrusion block 15, the lower side of the connecting sleeve 1 is bonded with a sealing ring 17 below the extrusion ring 16, the inner part of the connecting sleeve 1 is bonded with a protective pad 18 between the two groups of sealing rings 17, the upper and lower ends of the extrusion block 15 are both fixed with a limiting block 19, and a threaded hole 20 is formed in the middle of one side of the limiting block 19, the connecting mode of the limiting block 19 and the bidirectional screw rod 13 is threaded connection, and the limiting block 19 and the inner cavities 9 on the upper and lower sides of the surface of the connecting sleeve 1 form a clamping type sliding connection, the movement directions of the two groups of limiting blocks 19 on the bidirectional screw rod 13 are opposite, the limiting block 19 can drive the extrusion block 15 to slide to both sides in the inner cavity 9 through the threaded movement of the bidirectional screw rod 13 and the limiting block 19, the longitudinal sections of the extrusion block 15 and the extrusion ring 16 are both provided in a right trapezoidal shape, the lower end surface of the extrusion ring 16 is bonded in the middle of the sealing ring 17, the extrusion ring 16 can be extruded inwardly to the sealing ring 17 through the extrusion of the extrusion block 15, so as to improve the sealing performance between the sealing ring 17 and the pipeline.

[0023] Working principle: firstly, during installation, the pipeline can be placed in the inner part of the connecting sleeve 1, and the first rubber clamp head 5 at one end of the connecting sleeve 1 is clamped into the first clamping groove 7 in the inner part of the connecting sleeve 1, and the second rubber clamp head 6 at the other end is clamped into the second clamping groove 8 in the inner part of the connecting sleeve 1, and then the fastening nut 4 is rotated, so that the connecting heads 2 at both ends of the connecting sleeve 1 are close to the locking state, and the end part of the connecting sleeve 1 is connected more firmly.

[0024] After the pipeline and the connecting sleeve 1 are installed, the adjusting rod 10 can be rotated by two hands synchronously, so that the adjusting rod 10 drives the second bevel gear 14 on the surface of the bidirectional screw rod 13 to mesh and rotate through the first bevel gear 11, and then the bidirectional screw rod 13 rotates on the fixed block 12, and the bidirectional screw rod 13 rotates to threadedly move with the limiting block 19, so that the limiting block 19 slides outwardly in the inner cavity 9 in the inner part of the connecting sleeve 1, and then the limiting block 19 drives the extrusion block 15 at the end part thereof to extrude the extrusion ring 16, the extrusion block 15 and the extrusion ring 16 are both provided in a right trapezoidal shape, and the inclined surfaces thereof are correspondingly arranged, when the extrusion block 15 extrudes the extrusion ring 16, the extrusion ring 16 will extrude the sealing ring 17 downwardly, so as to improve the tightness of the sealing ring 17 and the pipeline connection, and then the sealing effect of the device is improved, which is the use principle of the pipeline connecting device.

[0025] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A pipe connecting device comprising a connecting sleeve (1), a connecting head (2), an adjusting rod (10) and a sealing ring (17), characterized in that: The both ends of the connecting sleeve (1) are fixedly provided with connecting heads (2), and the both ends of the connecting head (2) are provided with fastening bolts (3), the end of the fastening bolt (3) is provided with a fastening nut (4), one end of the connecting sleeve (1) is adhesively provided with a first rubber chuck (5), and the side of the connecting sleeve (1) located at the first rubber chuck (5) is provided with a second clamping groove (8), the other end of the connecting sleeve (1) is adhesively provided with a second rubber chuck (6), and the side of the connecting sleeve (1) located at the second rubber chuck (6) is provided with a first clamping groove (7), the upper and lower sides of the connecting sleeve (1) and the both ends of the connecting sleeve (1) are provided with cavities (9), the middle part of the upper and lower ends of the connecting sleeve (1) is rotatably connected with an adjusting rod (10), and the inner end of the adjusting rod (10) is fixedly provided with a first bevel gear (11), the middle part of the fixed block (12) is rotatably connected with a bidirectional screw rod (13), the cavity (9) of the both ends of the connecting sleeve (1) is provided with an extrusion ring (16), and the upper end of the extrusion ring (16) is provided with an extrusion block (15), the lower side of the connecting sleeve (1) is adhesively provided with a sealing ring (17) below the extrusion ring (16), and the inner part of the connecting sleeve (1) is adhesively provided with a protective pad (18) between the two groups of sealing rings (17).

2. A pipe coupling device according to claim 1, characterised in that: The first rubber chuck (5) and the second rubber chuck (6) are arranged in an arc shape, and the first rubber chuck (5) is located outside the second rubber chuck (6).

3. A pipe coupling device according to claim 1, wherein: The first rubber chuck (5) and the second clamping groove (8) and the second rubber chuck (6) and the first clamping groove (7) are clamped.

4. A pipe coupling device according to claim 1, wherein: The middle part of the bidirectional screw rod (13) is fixedly provided with a second bevel gear (14), and the second bevel gear (14) is meshed with the first bevel gear (11) below the adjusting rod (10).

5. A pipe coupling device according to claim 1, wherein: The longitudinal section of the extrusion block (15) and the extrusion ring (16) is arranged in a right trapezoidal shape, and the lower end surface of the extrusion ring (16) is adhesively connected to the middle part of the sealing ring (17).

6. A pipe coupling device according to claim 1, wherein: The upper and lower ends of the extrusion block (15) are fixedly provided with limiting blocks (19), and the middle part of one side of the limiting block (19) is provided with a threaded hole (20), the connecting mode of the limiting block (19) and the bidirectional screw rod (13) is screw connection, and the limiting block (19) and the cavities (9) on the upper and lower sides of the surface of the connecting sleeve (1) form clamping type sliding connection, and the movement directions of the two groups of limiting blocks (19) on the bidirectional screw rod (13) are opposite.

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