CN211010271U - Fastening device of nodular cast iron pipe - Google Patents
Fastening device of nodular cast iron pipe Download PDFInfo
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- CN211010271U CN211010271U CN201921414555.5U CN201921414555U CN211010271U CN 211010271 U CN211010271 U CN 211010271U CN 201921414555 U CN201921414555 U CN 201921414555U CN 211010271 U CN211010271 U CN 211010271U
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- iron pipe
- cast iron
- lugs
- butted
- hoop
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Abstract
The utility model discloses a fastener of nodular cast-iron pipe, its characterized in that: the device comprises a hoop which is detachably tightened at one end of a target cast iron pipe, at least two first lugs are uniformly arranged on the hoop along the circumferential direction of the hoop, a bearing plate is detachably connected at one end, far away from the target cast iron pipe, of the cast iron pipe to be butted, second lugs are respectively constructed on the bearing plate and at positions corresponding to the first lugs, and the first lugs and the corresponding second lugs are connected through tightening mechanisms hooked on the first lugs and the second lugs. The utility model is simple in operation, fixed firm difficult slippage, and the cast iron pipe of required butt joint atress in tightening mechanism accommodation process is even, and the cast iron pipe of difficult required butt joint produces the skew. The utility model is suitable for a two cast-iron pipe docks.
Description
Technical Field
The utility model belongs to the technical field of machining, concretely relates to fastener of nodular cast-iron pipe.
Background
Because the ductile cast iron pipe has high hardness and brittleness and is not easy to weld, the connection mode is that short pipes, full-disc T-shaped pipes, disc-bearing sleeves and other connection pipe fittings are adopted to be connected with each other, the connection mode is suitable for the initial planning construction of a ductile cast iron pipe network, if the ductile cast iron pipe network is constructed, then branch pipes are connected on the ductile cast iron pipe network more difficultly, and the common method is to remove a section of pipe between two ductile cast iron pipe fittings, increase the ductile cast iron pipe fittings, and then connect out the branch pipes. The method has the advantages that the pipe is difficult to process and complicated to construct, and the construction cost of pipe network engineering is increased, so that a fastening device which can solve the problems of complicated butt joint fastening operation, easy slippage in fixation and uneven stress is urgently needed in the field.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve present cast-iron pipe at butt joint in-process complex operation, the fixed easy slippage and the inhomogeneous nodular cast-iron pipe's of atress nodular cast-iron pipe's fastener.
In order to achieve the above object, the utility model adopts the following technical scheme:
a fastening device for a nodular cast iron pipe comprises a hoop detachably tightened at one end of a target cast iron pipe, at least two first hanging lugs are uniformly arranged on the hoop along the circumferential direction of the hoop, a bearing plate is detachably connected to one end, far away from the target cast iron pipe, of the cast iron pipe to be butted, second hanging lugs are respectively constructed on the bearing plate and at positions corresponding to the first hanging lugs, and the first hanging lugs and the corresponding second hanging lugs are connected through tightening mechanisms hooked on the first hanging lugs and the second hanging lugs.
And the end, connected with the clamp, of the target cast iron pipe is provided with a trumpet-shaped structure which is gradually expanded outwards along the axis of the target cast iron pipe, and the clamp is provided with an inner wall matched with the outer wall of the trumpet-shaped structure.
As another limitation, the clamp includes two arc-shaped plates that are fastened to each other and tightened on the target cast iron pipe, fixing lugs are respectively configured at the ends of the two arc-shaped plates that are fastened to each other, and the two corresponding fixing lugs are fastened by bolts penetrating through the two fixing lugs.
By way of further limitation, the at least two first hanging lugs are uniformly configured on the outer walls of the two arc-shaped plates.
As a further limitation, a layer of rubber pad is embedded on the inner wall of the hoop.
As a further limitation, an annular clamping groove is formed on the end face of one end of the tensile plate close to the cast iron pipe to be butted, and one end of the cast iron pipe to be butted, far away from the target cast iron pipe, is clamped in the annular clamping groove.
As a further limitation, a rubber layer is padded in the annular clamping groove.
As further injects, the terminal surface that holds the arm-tie and keep away from ring slot one end has linked firmly and has held the post, the both ends of holding the post are followed hold the radial of arm-tie and stretch out hold the arm-tie, two the second hangers is constructed respectively in hold the post and stretch out hold the both ends of arm-tie.
As a further limitation, the tightening mechanism is a chain block, and two ends of the chain block are respectively hooked on the corresponding first hanging lug and the second hanging lug.
The utility model discloses owing to adopted foretell structure, it compares with prior art, and the technical progress who gains lies in:
(1) the utility model discloses a cast iron pipe fastening device, including can dismantle the clamp of tightening in one end of target cast iron pipe, evenly be equipped with two at least first hangers along its circumference on the clamp, can dismantle the connection with the take-up plate in the one end of waiting to dock the cast iron pipe and keeping away from the target cast iron pipe, construct the second hanger respectively on the take-up plate and with the position department that the first hanger corresponds, the first hanger with corresponding the second hanger through colluding in the connection of the tightening mechanism of the two; when two cast iron pipes need to be butted, firstly, a clamp hoop with at least two first lugs is sleeved on a target cast iron pipe, the clamp hoop is fastened at one end of the target cast iron pipe to be butted, then, a hoisting device is used for hoisting the cast iron pipe to be butted, a rubber ring is sleeved on the end to be butted of the cast iron pipe to be butted, the butted end sleeved with the rubber ring is embedded into one end matched with the target cast iron pipe, a bearing plate with a second lug is connected at one end of the cast iron pipe to be butted, which is far away from the target cast iron pipe, the bearing plate is rotated to enable the second lug to correspond to the first clamp hoop on the clamp hoop, then, the first lug and the corresponding second lug are connected through a tightening mechanism hooked on the first lug and the second lug, and finally, when the cast iron pipe to be butted is hoisted by the hoisting device, the tightening mechanism is adjusted under the action of external force to enable the cast iron pipe to be butted with the target cast, finishing the butt joint process to separate the hoisting equipment from the cast iron pipe to be butted; the design has simple operation, firm fixation and difficult slipping, and the cast iron pipes to be butted are stressed uniformly in the adjusting process of the tightening mechanism, so that the cast iron pipes to be butted are not easy to deviate;
(2) the end of the target cast iron pipe connected with the clamp of the utility model is provided with a trumpet-shaped structure which is gradually expanded outwards along the axis of the target cast iron pipe, the clamp is provided with an inner wall which is matched with the outer wall of the trumpet-shaped structure, and the clamp and the target cast iron pipe can be tightened more firmly by the arrangement;
(3) the clamp of the utility model comprises two arc plates which are mutually buckled and tightly tied on the target cast iron pipe, the end parts of the two arc plates which are mutually buckled are respectively provided with a fixing lug, and the two corresponding fixing lugs are fastened by a bolt which runs through the two arc plates, so that the clamp is more convenient in the use process and can also be suitable for the cast iron pipes with the pipe diameters which are not much different, and the use efficiency is increased;
(4) the at least two first hangers of the utility model are uniformly constructed on the outer walls of the two arc-shaped plates, and the arrangement can enlarge the stress surface in the stress process of the first hangers, so that the hoop is not easy to damage, and the service life of the hoop is prolonged;
(5) the rubber gasket is embedded on the inner wall of the hoop, so that the hoop and the target cast iron pipe can play a certain buffering role in the adjusting process of the hoop, and the friction force is increased in the tightening process of the tightening mechanism, so that the hoop is not easy to slide on the target cast iron pipe;
(6) the annular clamping groove is formed on the end face of one end, close to the cast iron pipe to be butted, of the bearing pull plate, and one end, far away from the target cast iron pipe, of the cast iron pipe to be butted is clamped in the annular clamping groove, so that clamping is firmer, and the position of a second hanging lug on the bearing pull plate is easy to adjust;
(7) the annular clamping groove is internally provided with a rubber layer in a cushioning manner, and a protective layer can be formed on the bearing plate and the cast iron pipe to be butted by the rubber layer, so that the cast iron pipe is prevented from being damaged in the operation process of the tightening mechanism;
(8) in the utility model, the end face of the end of the bearing plate far away from the annular clamping groove is fixedly connected with the bearing column, the two ends of the bearing column extend out of the bearing plate along the radial direction of the bearing plate, and the two second hangers are respectively constructed at the two ends of the bearing plate, which extend out of the bearing column;
to sum up, the utility model is simple in operation, fixed firm difficult slippage, and the cast iron pipe of required butt joint atress in tightening mechanism accommodation process is even, and the cast iron pipe that is difficult for making required butt joint produces the skew, is applicable to two cast iron pipe butt joints.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural view of a clamp according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a tensile plate according to an embodiment of the present invention.
Labeling components: 1-a target cast iron pipe, 101-a cast iron pipe to be butted, 2-a hoop, 201-a first lug, 202-a fixing lug, 203-a bolt, 3-a bearing plate, 301-a bearing column, 302-a second lug and 4-a hand-operated block.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the invention.
Embodiment a fastening device of a ductile cast iron pipe
The embodiment discloses a fastening device of a nodular cast iron pipe, which comprises the steps of before laying a nodular target nodular cast iron pipe 1, carrying out on-site measurement and paying-off on a laying ground, after the measurement and paying-off are qualified, slotting along a measurement line by using a slotting machine, inspecting the slotted pipe after the slotting is qualified, paving sand at the bottom of the slot after the inspection is qualified to level the bottom of the slot, then putting the qualified nodular cast iron pipe 1 into the slot, after the pipe is put, cleaning a pipe chamber and a pipe orifice to clean the pipe chamber and the pipe orifice, putting no sand and soil in the pipe chamber and the pipe orifice, firstly fixing the target nodular cast iron pipe 1, then sleeving a rubber ring at one end of the to-be-butted cast iron pipe 101 to be butted, butting one end sleeved with the rubber ring with the butted end of the fixed target nodular cast iron pipe 1, hoisting the to-be-butted cast iron pipe 101 by using a crane, and leading one end sleeved with the rubber ring to extend into the end of the target nodular cast iron pipe 1 to, as shown in fig. 1, a detachable hoop 2 is fastened at one end of a target cast iron pipe 1, at least two first lugs 201 are uniformly welded on the hoop 2 along the circumferential direction thereof, a pull plate 3 is detachably connected to one end of the cast iron pipe 101 to be butted, which is far away from the target cast iron pipe 1, a second lug 302 is welded on the pull plate 3 and at a position corresponding to the first lug 201, the first lug 201 and the corresponding second lug 302 are connected by a manual hoist 4 hooked on the first lug and the second lug, and the operation process and principle of the embodiment are as follows: when two cast iron pipes need to be butted, firstly, a bolt 203 on the hoop 2 is loosened to enable the hoop 2 to be in a loose state, then, the hoop 2 with at least two first lugs is sleeved on the target cast iron pipe 1, the hoop 2 is made to slide to one end, needing to be butted, of the target cast iron pipe 1, the bolt 203 in the fixing lug 202 is adjusted to be fastened, the bolt 203 can be fastened through a threaded hole in the fixing lug 202 or can be fastened through the bolt 203 and a nut matched with the bolt 203, then, a crane is used for hoisting the clean cast iron pipe 101 to be butted, the clean cast iron pipe 101 to be butted is hoisted, the rubber ring is arranged at the end, needing to be butted, of the cast iron pipe 101 to be butted, the butted end sleeved with the rubber ring is embedded into one end matched with the target cast iron pipe 1, a bearing plate 3 with a second lug 302 is connected to one end, far away from the target cast iron pipe 1, the bearing plate 3 is rotated to enable the second lug 302 to correspond to the first lug 201 on the hoop 2, and finally, when the cast iron pipe 101 to be butted is lifted by a crane, the manual hoist 4 is adjusted under the action of external force to ensure that the cast iron pipe 101 to be butted and the target cast iron pipe 1 are butted at proper positions, the cast iron pipe to be butted and the target cast iron pipe are fixed, so that the crane and the cast iron pipe 101 to be butted are separated, and the butting process is finished. The advantages of this embodiment are thus: by adopting the arrangement, the two cast iron pipes are easy to operate and firmly fixed without slipping in the butt joint process, the cast iron pipes to be butted are uniformly stressed in the adjusting process of the manual hoist 4, and the cast iron pipes to be butted are not easy to deviate.
As a preferred structure of the clamp 2 of this embodiment, as shown in fig. 1 and fig. 2, one end of the target cast iron pipe 1 connected to the clamp 2 has a trumpet-shaped structure gradually expanding outward along an axis of the target cast iron pipe 1, the clamp 2 has an inner wall adapted to an outer wall of the trumpet-shaped structure, the clamp 2 includes two arc-shaped plates fastened to each other and tightened on the target cast iron pipe 1, fixing lugs 202 are welded to end portions of the two arc-shaped plates fastened to each other, the two corresponding fixing lugs 202 are fastened by bolts 203 penetrating through the two fixing lugs, at least two first lugs 201 are uniformly welded to outer walls of the two arc-shaped plates, and a layer of rubber pad is embedded on an inner wall of the clamp 2. The advantage of this embodiment lies in from this, adopt above-mentioned setting, can make clamp 2 more convenient in the use, and can also be applicable to the cast iron pipe that the pipe diameter differs a little, increase the availability factor, can also make the stress surface increase, be difficult to damage clamp 2, increase clamp 2's life, can make clamp 2 and target cast iron pipe 1 in clamp 2 accommodation process, play certain cushioning effect, and tighten up the in-process increase frictional force at hand block 4, make clamp 2 be difficult for producing the slip on target cast iron pipe 1.
As a preferred structure of the bearing plate 3 of this embodiment, as shown in fig. 1 and fig. 3, an annular groove is formed on an end surface of the bearing plate 3 near the cast iron pipe 101 to be butted, the cast iron pipe 101 to be butted is far from the target cast iron pipe 1 and is clamped in the annular groove, and a rubber layer is padded in the annular groove. The advantage of this embodiment lies in that, with the above arrangement, the joint can be more firm, and the position of the second lug 302 on the bearing and pulling plate 3 can be easily adjusted, and the damage to the cast iron pipe 101 to be butted can also be avoided in the process of tightening the manual block 4.
As a preferred structure of the bearing plate 3 of this embodiment, as shown in fig. 1 and fig. 3, a bearing column 301 is welded to an end surface of the bearing plate 3, which is far away from one end of the annular clamping groove, two ends of the bearing column 301 extend out of the bearing plate 3 along a radial direction of the bearing plate 3, two second hanging lugs 302 are respectively configured at two ends of the bearing column 301 extending out of the bearing plate 3, and the second hanging lugs 302 at two ends of the bearing column 301 can be formed by cutting with a machine tool. Therefore, the advantage of this embodiment is that, with the above arrangement, the tensile column 301 can play a role of reinforcing rib for the tensile plate 3 in the stress process, so as to improve the tensile strength of the tensile plate 3 and increase the bearing capacity of the second hanging lug 302.
After the inspection of the opening is qualified, filling soil into the groove, plugging the pipeline, fixing, building a well chamber in a required place, performing irrigation pressure test, installing pipeline valves and pipe fittings after the pipeline pressure test is qualified, performing pressure test inspection, and performing secondary backfilling soil burying after the inspection is qualified.
The embodiment of the utility model provides a theory of operation as follows:
when two cast iron pipes need to be butted, firstly, fixing the target cast iron pipe 2 at a proper position, cleaning an official cavity and a pipe orifice, firstly loosening bolts 203 on the clamp 2 to enable the clamp 2 to be in a loose state, then, sleeving the clamp 2 with at least two first hanging lugs 201 on the target cast iron pipe 1 in a sleeving manner to enable the clamp 2 to slide to one end of the target cast iron pipe 1 to be butted, adjusting the bolts 203 in the fixing lugs 202 to fasten the clamp, then, hoisting the cleaned cast iron pipe 101 to be butted by using a crane, sleeving a rubber ring on the end to be butted of the cast iron pipe 101 to be butted, embedding the butted end of the rubber ring into one end matched with the target cast iron pipe 1, connecting a bearing plate 3 with a second hanging lug 302 on one end of the cast iron pipe 101 to be butted, far away from the target cast iron pipe 1, rotating the bearing plate 3 to enable the second hanging lug 302 to correspond to the first hanging lug 201 on the clamp 2, and finally, when the cast iron pipe 101 to be butted is lifted by a crane, the manual hoist 4 is adjusted under the action of external force to ensure that the cast iron pipe 101 to be butted and the target cast iron pipe 1 are butted at proper positions, the cast iron pipe 101 to be butted is fixed, and the crane and the cast iron pipe 101 to be butted are separated to finish the butting process.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the protection of the claims of the present invention.
Claims (9)
1. The utility model provides a fastener of nodular cast-iron pipe which characterized in that: the device comprises a hoop (2) which is detachably tightened at one end of a target cast iron pipe (1), at least two first lugs (201) are uniformly arranged on the hoop (2) along the circumferential direction of the hoop, one end of the cast iron pipe (101) to be butted, which is far away from the target cast iron pipe (1), is detachably connected with a bearing plate (3), second lugs (302) are respectively constructed on the bearing plate and at positions corresponding to the first lugs (201), and the first lugs (201) are connected with the corresponding second lugs (302) through tightening mechanisms hooked on the first lugs and the second lugs.
2. The fastening device of ductile iron pipes according to claim 1, wherein: one end of the target cast iron pipe (1) connected with the clamp (2) is provided with a horn-shaped structure which is gradually expanded outwards along the axis of the target cast iron pipe (1), and the clamp (2) is provided with an inner wall matched with the outer wall of the horn-shaped structure.
3. The fastening device of ductile iron pipes according to claim 2, wherein: the hoop (2) comprises two arc-shaped plates which are buckled with each other and tightened on the target cast iron pipe (1), fixing lugs (202) are respectively constructed at the buckled end parts of the two arc-shaped plates, and the two corresponding fixing lugs (202) are fastened through bolts (203) penetrating through the two fixing lugs.
4. The fastening device of ductile iron pipe according to claim 3 wherein said at least two first lugs (201) are uniformly formed on the outer wall of both said arc-shaped plates.
5. The fastening device of ductile iron pipes according to any one of claims 1 to 4, wherein: and a layer of rubber pad is embedded on the inner wall of the hoop (2).
6. The fastening device of ductile iron pipes according to claim 1, wherein: an annular clamping groove is formed in the end face, close to the cast iron pipe (101) to be butted, of the bearing plate (3), and one end, far away from the target cast iron pipe (1), of the cast iron pipe (101) to be butted is clamped in the annular clamping groove.
7. The fastening device of ductile cast iron pipe according to claim 6, wherein: and a rubber layer is padded in the annular clamping groove.
8. The fastening device of ductile cast iron pipe according to claim 6, wherein: hold arm-tie (3) and keep away from the terminal surface of ring channel one end has linked firmly and has held arm-tie (301), the both ends that hold arm-tie (301) are followed hold radial stretching out of arm-tie (3) hold arm-tie (3), two second hangers (302) construct respectively in hold arm-tie (301) stretch out hold the both ends of arm-tie (3).
9. The fastening device of ductile iron pipes according to claim 1, wherein: the tightening mechanism is a chain block (4), and two ends of the chain block (4) are respectively hooked on the corresponding first hanging lug (201) and the second hanging lug (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921414555.5U CN211010271U (en) | 2019-08-28 | 2019-08-28 | Fastening device of nodular cast iron pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921414555.5U CN211010271U (en) | 2019-08-28 | 2019-08-28 | Fastening device of nodular cast iron pipe |
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| Publication Number | Publication Date |
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| CN211010271U true CN211010271U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921414555.5U Active CN211010271U (en) | 2019-08-28 | 2019-08-28 | Fastening device of nodular cast iron pipe |
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| CN (1) | CN211010271U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128489A (en) * | 2020-09-10 | 2020-12-25 | 广东电网有限责任公司梅州供电局 | Detachable insulation joint |
-
2019
- 2019-08-28 CN CN201921414555.5U patent/CN211010271U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128489A (en) * | 2020-09-10 | 2020-12-25 | 广东电网有限责任公司梅州供电局 | Detachable insulation joint |
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