CN215173008U

CN215173008U - Connecting mechanism for nodular cast iron pipe

Info

Publication number: CN215173008U
Application number: CN202121288805.2U
Authority: CN
Inventors: 盛荣超
Original assignee: Jiangsu Qingou Construction Development Co ltd
Current assignee: Jiangsu Qingou Construction Development Co ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2021-12-14
Anticipated expiration: 2031-06-09

Abstract

The utility model discloses a coupling mechanism for nodular cast iron pipe, which comprises a sleeve, the inside both sides of sleeve all are provided with the cast iron pipe body, the outside of cast iron pipe body extends to the telescopic outside, the fixed surface of cast iron pipe body is connected with solid fixed ring, telescopic surface is seted up flutedly, the inside of recess is provided with the fixture block, and one side that the fixture block is close to the cast iron pipe body runs through to telescopic inside, and the both sides on sleeve surface all overlap and are equipped with the hollow tube, the inner wall of hollow tube and solid fixed ring's sliding surface connection. The utility model provides an in-process that current nodular cast-iron pipe is connecting, most of them are connected nodular cast-iron pipe through a plurality of bolts, and not hard up gyration and cracked phenomenon appear easily in the bolt when connecting, the problem of the nodular cast-iron union coupling of being not convenient for, this coupling mechanism for nodular cast-iron pipe possesses the advantage of being convenient for to connect, has improved nodular cast-iron pipe's practicality.

Description

Connecting mechanism for nodular cast iron pipe

Technical Field

The utility model relates to a nodular cast-iron pipe technical field specifically is a coupling mechanism for nodular cast-iron pipe.

Background

In the process of conveying tap water, the nodular cast iron pipes are needed, but most of the existing nodular cast iron pipes are connected through a plurality of bolts in the connecting process, and the bolts are easy to loosen, rotate and break during connection, so that the connection of the nodular cast iron pipes is inconvenient.

SUMMERY OF THE UTILITY MODEL

For solving the problem that proposes in the above-mentioned background art, the utility model aims to provide a coupling mechanism for nodular cast iron pipe possesses the advantage of being convenient for to connect, has solved current nodular cast iron pipe and at the in-process of connecting, and the majority is connected nodular cast iron pipe through a plurality of bolts, and not hard up gyration and cracked phenomenon appear easily in the bolt when connecting, the problem of nodular cast iron union coupling of being not convenient for.

In order to achieve the above object, the utility model provides a following technical scheme: a connecting mechanism for a nodular cast iron pipe comprises a sleeve, wherein cast iron pipe bodies are arranged on two sides of the interior of the sleeve, the outer sides of the cast iron pipe bodies extend to the outer sides of the sleeve, a fixing ring is fixedly connected to the surface of each cast iron pipe body, grooves are formed in the surface of the sleeve, clamping blocks are arranged in the grooves, one side, close to each cast iron pipe body, of each clamping block penetrates into the interior of the sleeve, hollow pipes are sleeved on two sides of the surface of the sleeve, the inner walls of the hollow pipes are connected with the surface of the fixing ring in a sliding mode, placing grooves are formed in the top and the bottom of the inner sides of the hollow pipes, movable blocks are movably connected in the placing grooves through rotating shafts, positioning blocks are fixedly connected to the inner sides of the movable blocks, one sides, far away from the movable blocks, of the positioning blocks penetrate into the interior of the sleeve, and tension springs are fixedly connected to the inner sides of the inner walls of the placing grooves, the outer side of the tension spring is fixedly connected with the inner side of the movable block.

As the utility model discloses it is preferred, gu fixed ring's inboard fixedly connected with baffle, the inner wall of baffle and the fixed surface of cast iron pipe body are connected, the shape of baffle is the annular, the cross section of baffle is trapezoidal, the first sealing washer of the inside outside fixedly connected with of sleeve, the inboard contact of first sealing washer and baffle.

As the utility model discloses it is preferred, the quantity of recess and fixture block is eight, and eight recesses and eight fixture blocks all are the equidistance and distribute, the draw-in groove that uses with the fixture block cooperation is seted up on the surface of baffle, the shape of fixture block is the T style of calligraphy.

As the utility model discloses it is preferred, the equal fixedly connected with second sealing washer in telescopic both sides, the outside and the solid fixed ring's of second sealing washer inboard contact, telescopic inner wall fixedly connected with ring, the equal fixedly connected with third sealing washer in both sides of ring, the outside of third sealing washer and the inboard fixed connection of cast iron pipe body.

As the utility model discloses it is preferred, the external screw thread has been seted up on solid fixed ring's surface, the internal thread that uses with the external screw thread fit is seted up to the inner wall of hollow tube, the inner wall of hollow tube and solid fixed ring's surface threaded connection.

As the utility model discloses it is preferred, the constant head tank that uses with the locating piece cooperation is seted up on telescopic surface, the quantity of constant head tank is a plurality of, and a plurality of constant head tank is the equidistance and distributes.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up the sleeve, the cast iron pipe body, solid fixed ring, a groove, the fixture block, the hollow tube, the standing groove, the movable block, the cooperation of locating piece and extension spring is used, the in-process of current nodular cast iron pipe at the connection has been solved, mostly be connected nodular cast iron pipe through a plurality of bolts, not hard up gyration and cracked phenomenon appear easily in the bolt when just connecting, the problem of nodular cast iron union coupling of being not convenient for, this coupling mechanism for nodular cast iron pipe possesses the advantage of being convenient for to connect, the practicality of nodular cast iron pipe has been improved.

2. The utility model discloses a setting of baffle can carry on spacingly to the position of cast iron pipe body, through the setting of first sealing washer, can seal the sleeve, prevents that the leakage from appearing in the cast iron pipe body.

3. The utility model discloses a friction of hollow tube and fixture block can be reduced in the setting of recess, uses through the cooperation of fixture block and draw-in groove, can fix the position of cast iron pipe body and baffle, prevents that the cast iron pipe body from breaking away from the hollow tube.

4. The utility model discloses a friction of sleeve and solid fixed ring can be reduced in the setting of second sealing washer, seals the sleeve simultaneously, through the setting of ring, can carry on spacingly to the position of cast iron pipe body, through the setting of third sealing washer, can seal the cast iron pipe body.

5. The utility model discloses an external screw thread and internal screw thread cooperation are used, can fix a position the position of hollow tube, prevent that cast iron pipe body and solid fixed ring from breaking away from the sleeve.

6. The utility model discloses a cooperation of locating piece and constant head tank is used, can carry on spacingly to the position of hollow tube, prevents that the phenomenon of gyration from appearing in the hollow tube.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged structural view of the point A in FIG. 1 according to the present invention;

FIG. 3 is a right side sectional view of the sleeve of FIG. 1 according to the present invention;

fig. 4 is a perspective view of the sleeve of fig. 1 according to the present invention.

In the figure: 1. a sleeve; 2. a cast iron pipe body; 3. a fixing ring; 4. a groove; 5. a clamping block; 6. a hollow tube; 7. a placement groove; 8. a movable block; 9. positioning blocks; 10. a tension spring; 11. a baffle plate; 12. a first seal ring; 13. a card slot; 14. a second seal ring; 15. a circular ring; 16. a third seal ring; 17. and (6) positioning a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 4, the connecting mechanism for ductile cast iron pipes provided by the present invention comprises a sleeve 1, wherein both sides of the inside of the sleeve 1 are provided with a cast iron pipe body 2, the outside of the cast iron pipe body 2 extends to the outside of the sleeve 1, the surface of the cast iron pipe body 2 is fixedly connected with a fixing ring 3, the surface of the sleeve 1 is provided with a groove 4, the inside of the groove 4 is provided with a fixture block 5, one side of the fixture block 5 close to the cast iron pipe body 2 penetrates into the inside of the sleeve 1, both sides of the surface of the sleeve 1 are sleeved with a hollow pipe 6, the inner wall of the hollow pipe 6 is connected with the surface of the fixing ring 3 in a sliding manner, the top and the bottom of the inner side of the hollow pipe 6 are both provided with a placement groove 7, the inside of the placement groove 7 is movably connected with a movable block 8 through a rotating shaft, the inner side of the movable block 8 is fixedly connected with a positioning block 9, one side of the positioning block 9 far away from the movable block 8 penetrates into the inside of the sleeve 1, the inner side of the inner wall of the placing groove 7 is fixedly connected with a tension spring 10, and the outer side of the tension spring 10 is fixedly connected with the inner side of the movable block 8.

Referring to fig. 1, a baffle 11 is fixedly connected to the inner side of the fixing ring 3, the inner wall of the baffle 11 is fixedly connected to the surface of the cast iron pipe body 2, the baffle 11 is annular, the cross section of the baffle 11 is trapezoidal, a first sealing ring 12 is fixedly connected to the outer side of the inner portion of the sleeve 1, and the first sealing ring 12 is in contact with the inner side of the baffle 11.

As a technical optimization scheme of the utility model, through the setting of baffle 11, can carry on spacingly to the position of cast iron pipe body 2, through the setting of first sealing washer 12, can seal sleeve 1, prevent that leakage from appearing in cast iron pipe body 2.

Referring to fig. 1, the number of the grooves 4 and the number of the clamping blocks 5 are eight, the eight grooves 4 and the eight clamping blocks 5 are distributed at equal intervals, clamping grooves 13 matched with the clamping blocks 5 for use are formed in the surface of the baffle 11, and the clamping blocks 5 are T-shaped.

As a technical optimization scheme of the utility model, through the setting of recess 4, can reduce the friction of hollow tube 6 and fixture block 5, use through the cooperation of fixture block 5 and draw-in groove 13, can fix the position of cast iron pipe body 2 and baffle 11, prevent that cast iron pipe body 2 from breaking away from hollow tube 6.

Referring to fig. 1, a second sealing ring 14 is fixedly connected to each of two sides of a sleeve 1, the outer side of the second sealing ring 14 is in contact with the inner side of a fixing ring 3, a circular ring 15 is fixedly connected to the inner wall of the sleeve 1, a third sealing ring 16 is fixedly connected to each of two sides of the circular ring 15, and the outer side of the third sealing ring 16 is fixedly connected to the inner side of a cast iron pipe body 2.

As a technical optimization scheme of the utility model, through the setting of second sealing washer 14, can reduce sleeve 1 and solid fixed ring 3's friction, seal sleeve 1 simultaneously, through the setting of ring 15, can carry on spacingly to the position of cast iron pipe body 2, through the setting of third sealing washer 16, can seal cast iron pipe body 2.

Referring to fig. 2, the surface of the fixing ring 3 is provided with an external thread, the inner wall of the hollow tube 6 is provided with an internal thread used in cooperation with the external thread, and the inner wall of the hollow tube 6 is in threaded connection with the surface of the fixing ring 3.

As a technical optimization scheme of the utility model, use through external screw thread and internal screw thread cooperation, can fix a position hollow tube 6's position, prevent that cast iron pipe body 2 and solid fixed ring 3 from breaking away from sleeve 1.

Referring to fig. 3, the surface of the sleeve 1 is provided with a plurality of positioning grooves 17 used in cooperation with the positioning block 9, and the plurality of positioning grooves 17 are equidistantly distributed.

As a technical optimization scheme of the utility model, use through the cooperation of locating piece 9 and constant head tank 17, can carry on spacingly to the position of hollow tube 6, prevent that the phenomenon of gyration from appearing in hollow tube 6.

The utility model discloses a theory of operation and use flow: during the use, the user stimulates the movable block 8 to the outside, make the movable block 8 around the pivot anticlockwise rotation, make locating piece 9 break away from constant head tank 17, the rotatory tensile extension spring 10 of movable block 8, then anticlockwise rotation hollow tube 6, make the internal thread break away from the external screw thread, make hollow tube 6 break away from solid fixed ring 3, then stimulate fixture block 5 to the outside, make fixture block 5 break away from draw-in groove 13 and recess 4 in proper order, then stimulate cast iron pipe body 2 to the outside, make cast iron pipe body 2 break away from sleeve 1, can dismantle cast iron pipe body 2 this moment, user's opposite operation can connect cast iron pipe body 2 during the connection.

In summary, the following steps: this coupling mechanism for nodular cast iron pipe through the cooperation that sets up sleeve 1, cast iron pipe body 2, solid fixed ring 3, recess 4, fixture block 5, hollow tube 6, standing groove 7, movable block 8, locating piece 9 and extension spring 10 and use, has solved current nodular cast iron pipe and at the in-process of connecting, and the nodular cast iron pipe is connected through a plurality of bolts mostly, and the phenomenon that the bolt appears not hard up gyration and fracture easily during the connection, the problem of being not convenient for the connection of nodular cast iron pipe.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a coupling mechanism for nodular cast iron pipe, includes sleeve (1), its characterized in that: the casting iron pipe comprises a sleeve (1), wherein both sides of the inside of the sleeve (1) are provided with casting iron pipe bodies (2), the outside of the casting iron pipe bodies (2) extends to the outside of the sleeve (1), the surface of the casting iron pipe bodies (2) is fixedly connected with fixing rings (3), the surface of the sleeve (1) is provided with grooves (4), clamping blocks (5) are arranged inside the grooves (4), one side, close to the casting iron pipe bodies (2), of each clamping block (5) penetrates into the inside of the sleeve (1), both sides of the surface of the sleeve (1) are sleeved with hollow pipes (6), the inner walls of the hollow pipes (6) are connected with the surfaces of the fixing rings (3) in a sliding mode, the top and the bottom of the inner sides of the hollow pipes (6) are provided with placing grooves (7), the inside of each placing groove (7) is movably connected with a movable block (8) through a rotating shaft, and the inner sides of the movable blocks (8) are fixedly connected with positioning blocks (9), one side that movable block (8) were kept away from in locating piece (9) runs through to the inside of sleeve (1), inboard fixedly connected with extension spring (10) of standing groove (7) inner wall, the inboard fixed connection of the outside of extension spring (10) and movable block (8).

2. The connection mechanism for a ductile iron pipe according to claim 1, wherein: the inner side of the fixing ring (3) is fixedly connected with a baffle (11), the inner wall of the baffle (11) is fixedly connected with the surface of the cast iron pipe body (2), the baffle (11) is annular, the cross section of the baffle (11) is trapezoidal, the outer side of the inner part of the sleeve (1) is fixedly connected with a first sealing ring (12), and the first sealing ring (12) is in contact with the inner side of the baffle (11).

3. The connection mechanism for a ductile iron pipe according to claim 2, wherein: the quantity of recess (4) and fixture block (5) is eight, and eight recess (4) and eight fixture block (5) all are the equidistance and distribute, draw-in groove (13) that use with fixture block (5) cooperation are seted up on the surface of baffle (11), the shape of fixture block (5) is the T style of calligraphy.

4. The connection mechanism for a ductile iron pipe according to claim 1, wherein: the casting pipe is characterized in that second sealing rings (14) are fixedly connected to two sides of the sleeve (1), the outer sides of the second sealing rings (14) are in contact with the inner side of the fixing ring (3), a circular ring (15) is fixedly connected to the inner wall of the sleeve (1), third sealing rings (16) are fixedly connected to two sides of the circular ring (15), and the outer sides of the third sealing rings (16) are fixedly connected with the inner side of the cast iron pipe body (2).

5. The connection mechanism for a ductile iron pipe according to claim 1, wherein: the surface of the fixing ring (3) is provided with external threads, the inner wall of the hollow tube (6) is provided with internal threads matched with the external threads for use, and the inner wall of the hollow tube (6) is in threaded connection with the surface of the fixing ring (3).

6. The connection mechanism for a ductile iron pipe according to claim 1, wherein: the locating groove (17) that use with locating piece (9) cooperation is seted up on the surface of sleeve (1), the quantity of locating groove (17) is a plurality of, and a plurality of locating groove (17) are the equidistance and distribute.