CN110726017B - Fire-fighting pipe fitting and connecting structure thereof - Google Patents
Fire-fighting pipe fitting and connecting structure thereof Download PDFInfo
- Publication number
- CN110726017B CN110726017B CN201910898427.0A CN201910898427A CN110726017B CN 110726017 B CN110726017 B CN 110726017B CN 201910898427 A CN201910898427 A CN 201910898427A CN 110726017 B CN110726017 B CN 110726017B
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- CN
- China
- Prior art keywords
- snap ring
- fire
- fighting pipe
- clamp
- elastic
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/06—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe-ends
- F16L21/065—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe-ends tightened by tangentially-arranged threaded pins
Abstract
The invention relates to a fire-fighting pipe connecting structure which comprises a first clamping ring, a second clamping ring and a bolt used for fastening and connecting the first clamping ring and the second clamping ring, wherein a connecting channel used for connecting a fire-fighting pipe is formed between the first clamping ring and the second clamping ring, the fire-fighting pipe connecting structure also comprises a sealing ring arranged between the first clamping ring and the second clamping ring, elastic clamps used for abutting against the outer edges of the sealing ring are arranged in the first clamping ring and the second clamping ring, rigid clamps used for contracting the elastic clamps are sleeved outside the elastic clamps, and abutting pieces used for abutting against the rigid clamps and enabling the rigid clamps to move towards the elastic clamps are arranged in the first clamping ring in a penetrating mode. The elastic clamp extrudes the sealing ring, so that a gap between the sealing ring and the fire-fighting pipe fitting is reduced, and the invention has the effects of enhancing the sealing of the joint of the fire-fighting pipe fitting and reducing water leakage.
Description
Technical Field
The invention relates to the technical field of fire fighting, in particular to a fire fighting pipe fitting and a connecting structure thereof.
Background
According to the fire-fighting requirements, indoor fire hydrant, fire-fighting pipe fittings and other equipment for fire extinguishing need to be installed in the building. The fire-fighting pipeline is formed by connecting fire-fighting pipe fittings, and traditional fire-fighting pipe fittings form the fire-fighting pipeline through welding or threaded connection mode, and the connected mode of this kind of pipeline makes the maintenance especially inconvenient to exist and waste time, hard, the construction cycle length, with high costs, defects such as installation effectiveness low.
In the prior art, a Chinese patent with an authorization publication number of CN102966808B discloses an installation method of a fire-fighting pipe fitting, which comprises the steps of cutting a plurality of sections of steel pipes with the same diameter according to a designed length on a construction site; b. processing an inward concave annular clamping groove surrounding the circumferential surface on the outer circumferential surface of the near-end surface at the two ends of each section of the intercepted steel pipe; c. spraying antirust paint on the outer surface of each section of steel pipe with the machined clamping groove, and then spraying finish paint to form a plurality of sections of fire fighting pipes with the designed length; d. and connecting the plurality of sections of fire fighting pipes into an indoor fire fighting pipeline by a plurality of hoops, wherein the connecting parts of the fire fighting pipes and the hoops are sealed by sealing parts. The invention has the characteristics of convenient and quick processing and installation, easy maintenance, high installation efficiency, low cost and the like.
The above prior art solutions have the following drawbacks: along with the increase of service time, the impact force generated when water is introduced into the pipeline can cause the clamp part of the pipeline connection to be loosened, and water leakage at the clamp part is caused.
Disclosure of Invention
The invention aims to provide a fire-fighting pipe connecting structure which has the advantages of enhancing the sealing of the fire-fighting pipe connecting part and reducing water leakage.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a fire control pipe fitting connection structure, includes first snap ring, second snap ring and is used for first snap ring and second snap ring fastening connection's bolt, first snap ring with form the connected passage who is used for fire control pipe fitting to connect between the second snap ring, still including set up in first snap ring with sealing washer between the second snap ring, first snap ring with be provided with in the second snap ring be used for with the sealing washer is outer along the elastic fixture of looks butt, the elastic fixture overcoat is equipped with and is used for the rigid fixture of elastic fixture shrink, first snap ring is worn to be equipped with and is used for with rigid fixture butt and makes its orientation the butt piece of elastic fixture motion.
Implement above-mentioned technical scheme, when connecting to fire control pipe fitting, carry out the butt with the sealing washer respectively with the terminal surface of two fire control pipe fittings, again with first snap ring and second snap ring joint in the junction of two fire control pipe fittings, and fasten first snap ring and second snap ring through the bolt, the butt of wearing to establish in the rethread first snap ring carries out the butt with the rigidity anchor clamps, the rigidity anchor clamps move towards the elastic fixture, the elastic fixture contracts under the joint effect of rigidity anchor clamps, and carry out the butt in the outside outer department of following of fire control pipe fitting junction to the sealing washer, through the extrusion of elastic fixture to the sealing washer, reduce the gap of sealing washer and fire control pipe fitting, it is sealed to have reinforcing fire control pipe fitting junction, reduce the advantage of leaking.
The invention is further set that the elastic clamp and the rigid clamp are both round tables with hollow interiors, and the diameter of the maximum opening of the rigid clamp along the axis of the rigid clamp is smaller than that of the maximum opening of the elastic clamp along the axis of the rigid clamp.
Implement above-mentioned technical scheme, the rigidity anchor clamps are the round platform, carry out the butt and towards the in-process that the fire control pipe fitting removed through the outside of butt piece and rigidity anchor clamps for the rigidity anchor clamps can move towards the elastic fixture, and the diameter of rigidity anchor clamps along its axis maximum opening part is less than the diameter of the maximum opening part of elastic fixture along its axis, makes the rigidity anchor clamps carry out the in-process of butt with the elastic fixture, and the rigidity anchor clamps can make the elastic fixture contract and press from both sides tightly the outer edge of sealing washer.
The invention is further provided that the elastic clamp is provided with a plurality of slots for shrinkage along the axial direction of the elastic clamp.
According to the technical scheme, the elastic clamp is provided with the plurality of slots in the axis direction, so that when the rigid clamp is clamped, the elastic clamp can contract through the slots.
The invention is further arranged that the outer edge of the sealing ring is a bevel edge.
Implement above-mentioned technical scheme, when two fire control pipe fittings connect, the belly of sealing washer carries out the butt with the terminal surface of two fire control pipe fittings respectively, and the edge of a wing department of sealing washer is located the fire control pipe fitting junction outside, and the outer border of the edge of a wing department of sealing washer is the hypotenuse, and the elastic fixture of being convenient for carries out the joint with the outer border department of sealing washer.
The invention is further arranged in that the abutting piece is a screw rod, and the abutting piece is in threaded connection with the first clamping ring.
Implement above-mentioned technical scheme, the butt piece is the screw rod, carries out the butt when needs butt piece and rigid fixture, moves the butt piece through twisting for the butt piece carries out the butt with the inclined plane of rigid fixture, makes rigid fixture carry out the joint with elastic fixture along the axis direction of fire control pipe fitting.
The first snap ring is further provided with an external thread end for the abutting part to penetrate through outside, and the external thread end is in threaded connection with an internal thread end cover used for shielding the abutting part and abutting against the abutting part.
Implement above-mentioned technical scheme, move butt piece and rigidity anchor clamps through twisting and carry out the butt to make rigidity anchor clamps and elastic fixture joint back, carry out threaded connection through internal thread end cover and external screw thread end, and make internal thread end cover and butt piece carry out the butt, can effectively prevent when fire control pipe fitting leads to water to take place to vibrate, lead to the butt piece to take place not hard up the back, elastic fixture does not press from both sides tightly the outer border of sealing washer.
The invention is further provided that one end of the abutting part, which is used for abutting against the rigid clamp, is embedded and is connected with a ball in a rotating mode.
According to the technical scheme, the balls are arranged, so that the friction between the abutting piece and the rigid clamp is rolling friction in the abutting process of the abutting piece and the rigid clamp, and the friction between the abutting piece and the rigid clamp is reduced.
The invention is further provided that the first snap ring and the second snap ring are both provided with protrusions for clamping with the fire fighting pipe fitting.
Implement above-mentioned technical scheme, through being provided with the arch, be convenient for first snap ring and second snap ring carry out the joint.
The invention aims to provide a fire-fighting pipe connecting structure which has the advantage of facilitating clamping connection of a first clamping ring and a second clamping ring.
The second purpose of the invention is realized by the following technical scheme:
the utility model provides a fire control pipe fitting, includes a plurality of sections fire control body, every section the both ends of fire control body all be provided with be used for with the recess of protruding joint.
Implement above-mentioned technical scheme, be provided with the recess through the both ends at the fire control body, fix a position for first snap ring and second snap ring, be convenient for first snap ring and second snap ring are connected with the fire control body.
In conclusion, the invention has the following beneficial effects:
when fire-fighting pipe fittings are connected, the sealing rings are respectively abutted against the end faces of the two fire-fighting pipe fittings, then the first clamping ring and the second clamping ring are clamped at the joint of the two fire-fighting pipe fittings and are fastened through bolts, the abutting pieces penetrating through the first clamping ring are abutted against the rigid clamp, the rigid clamp moves towards the elastic clamp, the elastic clamp contracts under the clamping action of the rigid clamp and abuts against the outer edge of the sealing ring outside the joint of the fire-fighting pipe fittings, the sealing rings are extruded through the elastic clamp, gaps between the sealing rings and the fire-fighting pipe fittings are reduced, and the fire-fighting pipe fittings joint sealing is enhanced, and water leakage is reduced;
the rigid clamp is a circular truncated cone, and can move towards the elastic clamp in the process of abutting the abutting part with the outer part of the rigid clamp and moving towards the fire-fighting pipe fitting, the diameter of the maximum opening of the rigid clamp along the axis of the rigid clamp is smaller than that of the maximum opening of the elastic clamp along the axis of the elastic clamp, and the rigid clamp can enable the elastic clamp to contract and clamp the outer edge of the sealing ring in the process of abutting the rigid clamp with the elastic clamp;
third, move butt piece and rigidity anchor clamps through twisting and carry out the butt to make behind rigidity anchor clamps and the elastic fixture joint, carry out threaded connection through internal thread end cover and external screw thread end, and make internal thread end cover and butt piece carry out the butt, can effectively prevent when fire control pipe fitting water-passing takes place to vibrate, lead to the butt piece to take place not hard up the back, the elastic fixture is not pressed from both sides tightly the outer border of sealing washer.
Drawings
FIG. 1 is a schematic structural view of a fire fighting pipe according to an embodiment of the present invention;
FIG. 2 is an exploded view of a fire fighting pipe connection according to an embodiment of the present invention;
fig. 3 is an enlarged view of a portion a in fig. 2.
Reference numerals: 1. a first snap ring; 2. a second snap ring; 3. a bolt; 4. a seal ring; 5. an elastic clamp; 6. a rigid clamp; 7. an abutting member; 8. grooving; 9. a bevel edge; 10. an externally threaded end; 11. an internal thread end cap; 12. a ball bearing; 13. a protrusion; 14. a fire hose body; 15. and (4) a groove.
Detailed Description
The technical solutions of the embodiments of the present invention will be described below with reference to the accompanying drawings.
Example one
As shown in FIG. 1, a fire fighting pipe fitting comprises a plurality of fire fighting pipe bodies 14 according to the required length of fire fighting water, and two ends of each fire fighting pipe body 14 are integrally formed with annular grooves 15.
Example two
As shown in figure 2, a fire-fighting pipe connecting structure comprises a first snap ring 1, a second snap ring 2 and a bolt 3 for fastening and connecting the first snap ring 1 and the second snap ring 2, wherein a protrusion 13 used for being clamped with a groove 15 on a fire-fighting pipe body 14 is arranged in the first snap ring 1 and the second snap ring 2. After the first snap ring 1 and the second snap ring 2 are fastened and connected through the bolt 3, a connecting channel for connecting the fire fighting pipe body 14 is formed. The embedded sealing washer 4 that is used for with the section looks butt of fire control body 14 that has between first snap ring 1 and the second snap ring 2, the outer border of sealing washer 4 and 14 butts of fire control body extends integrated into one piece to its both sides and has the edge of a wing, and the outer border on the edge of a wing is hypotenuse 9.
As shown in fig. 2, elastic clamps 5 used for abutting against the bevel edges 9 of the sealing rings 4 are arranged in the first snap ring 1 and the second snap ring 2, rigid clamps 6 used for contracting the elastic clamps 5 are sleeved outside the elastic clamps 5, and the rigid clamps 6 and the elastic clamps 5 are sequentially sleeved at the end parts of the fire fighting pipe body 14 to be connected. The elastic clamp 5 and the rigid clamp 6 are both internally hollow round tables, the diameter of the maximum opening of the rigid clamp 6 along the axis of the rigid clamp is smaller than that of the maximum opening of the elastic clamp 5 along the axis of the rigid clamp, and seven slots 8 for shrinkage of the elastic clamp 5 are formed in the axis direction of the elastic clamp 5. In the present embodiment, the rigid clamp 6 is made of stainless steel and the elastic clamp 5 is made of plastic.
As shown in fig. 2, the first snap ring 1 is provided with an abutting piece 7 for abutting against the rigid clamp 6 and moving the rigid clamp toward the elastic clamp 5 along the axis of the fire fighting pipe body 14, and the abutting piece 7 is a screw rod screwed to the first snap ring 1. One end of the abutting piece 7, which is used for abutting against the rigid clamp 6, is embedded and is connected with a ball 12 in a rotating mode, and the friction force borne by the abutting piece 7 and the rigid clamp 6 when the abutting piece abuts against the rigid clamp 6 is reduced.
The specific working process is as follows: the rigid clamp 6 and the elastic clamp 5 are sequentially sleeved at the end parts of the two fire-fighting pipe bodies 14 to be connected, and then the abdomen of the sealing ring 4 is abutted against the end surfaces of the two fire-fighting pipe bodies 14. Next, carry out the joint through arch 13 on the first snap ring 1 and the arch 13 on the second snap ring 2 respectively with the recess 15 on the fire control pipe fitting, rethread bolt 3 makes first snap ring 1 be connected with second snap ring 2 to fasten two fire control body 14.
Constructor twists butt joint piece 7 towards fire control body 14 for butt joint piece 7 carries out the butt with rigid clamp 6, because the cross section of rigid clamp 6 is the round platform, so butt joint piece 7 and the inclined plane butt of rigid clamp 6 and continuously move towards fire control body 14, make rigid clamp 6 move towards elastic clamp 5 along the axis direction of fire control body 14.
In the process that the rigid clamp 6 is abutted to the elastic clamp 5, the rigid clamp 6 firstly pushes the elastic clamp 5 to the inclined edge 9 at the outer edge of the sealing ring 4 along the axis direction of the fire-fighting pipe body 14, and then the rigid clamp 6 is continuously clamped with the elastic clamp 5. Because the diameter of the maximum opening of the rigid clamp 6 along the axis is smaller than that of the maximum opening of the elastic clamp 5 along the axis, and seven slots 8 for contracting are formed in the elastic clamp 5 along the axis, the slots 8 in the elastic clamp 5 contract under the clamping action of the rigid clamp 6, so that the contracted elastic clamp 5 clamps the inclined edge 9 of the sealing ring 4, and the gap between the sealing ring 4 and the fire fighting pipe body 14 is reduced.
EXAMPLE III
With reference to fig. 2 and 3, the first snap ring 1 is welded with an external thread end 10 outside a threaded hole through which the abutting member 7 is inserted, and the external thread end 10 is in threaded connection with an internal thread end cap 11 for shielding the abutting member 7 and abutting against the same.
The specific working process is as follows: elastic fixture 5 carries out threaded connection with internal thread end cover 11 and external screw thread end 10 to the back is good to the hypotenuse 9 joint of sealing washer 4 to make internal thread end cover 11 and the one end looks butt of keeping away from rigid fixture 6 for butt piece 7 of screw rod, can effectively prevent when fire control pipe fitting logical water takes place to vibrate, lead to butt piece 7 to take place not hard up the back, elastic fixture 5 is not pressed from both sides tightly to the outside of sealing washer 4 along.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (7)
1. A fire-fighting pipe connecting structure comprises a first snap ring (1), a second snap ring (2) and a bolt (3) for fastening and connecting the first snap ring (1) and the second snap ring (2), wherein a connecting channel for connecting the fire-fighting pipe is formed between the first snap ring (1) and the second snap ring (2), the fire-fighting pipe connecting structure is characterized by further comprising a sealing ring (4) arranged between the first snap ring (1) and the second snap ring (2), an elastic clamp (5) used for abutting against the outer edge of the sealing ring (4) is arranged in the first snap ring (1) and the second snap ring (2), a rigid clamp (6) used for contracting the elastic clamp (5) is sleeved outside the elastic clamp (5), and an abutting piece (7) used for abutting against the rigid clamp (6) and enabling the rigid clamp to move towards the elastic clamp (5) is arranged in the first snap ring (1) in a penetrating mode, elastic fixture (5) with rigid fixture (6) are inside hollow round platform, the diameter of rigid fixture (6) along the maximum opening part of its axis is less than the diameter of elastic fixture (5) along the maximum opening part of its axis, elastic fixture (5) have seted up a plurality of flutings (8) that are used for its shrink along its axis direction.
2. A fire fighting pipe connection according to claim 1, characterized in that the outer edge of the sealing ring (4) is a bevelled edge (9).
3. A fire fighting pipe connection according to claim 1, characterized in that the abutment (7) is a screw, the abutment (7) being in threaded connection with the first collar (1).
4. A fire fighting pipe connection according to claim 1, characterized in that the first snap ring (1) is provided at its exterior with an externally threaded end (10) through which the abutment member (7) is passed, the externally threaded end (10) being threadedly connected with an internally threaded end cap (11) for shielding and abutting against the abutment member (7).
5. A fire fighting pipe connection according to claim 1, characterized in that the end of the abutment (7) for abutment with the rigid clamp (6) is embedded and rotatably connected with a ball (12).
6. A fire fighting pipe connection according to claim 1, characterized in that the first snap ring (1) and the second snap ring (2) are each provided with a projection (13) for snap-engagement with a fire fighting pipe.
7. A fire fighting pipe fitting comprising the fire fighting pipe fitting connecting structure according to claim 6, characterized by comprising a plurality of sections of fire fighting pipe body (14), wherein both ends of each section of fire fighting pipe body (14) are provided with grooves (15) for being clamped with the protrusions (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910898427.0A CN110726017B (en) | 2019-09-23 | 2019-09-23 | Fire-fighting pipe fitting and connecting structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910898427.0A CN110726017B (en) | 2019-09-23 | 2019-09-23 | Fire-fighting pipe fitting and connecting structure thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110726017A CN110726017A (en) | 2020-01-24 |
| CN110726017B true CN110726017B (en) | 2021-06-15 |
Family
ID=69218285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910898427.0A Expired - Fee Related CN110726017B (en) | 2019-09-23 | 2019-09-23 | Fire-fighting pipe fitting and connecting structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110726017B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114413085B (en) * | 2021-12-29 | 2024-04-19 | 中国十七冶集团有限公司 | Connecting piece with good sealing performance for assembled building construction and operation method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2775472A (en) * | 1952-11-14 | 1956-12-25 | Cicero C Brown | Sealing device for flanged joints |
| US4650226A (en) * | 1986-03-31 | 1987-03-17 | Joy Manufacturing Company | Holddown screw |
| JP3553713B2 (en) * | 1995-11-27 | 2004-08-11 | 株式会社水研 | Fluid pipe seal structure |
| JP2004162855A (en) * | 2002-11-15 | 2004-06-10 | Kubota Corp | Pressing ring for pipe joint and pipe joint |
| KR100927164B1 (en) * | 2007-10-24 | 2009-11-18 | 현대주철산업 주식회사 | Pipe connection socket |
| US20120098258A1 (en) * | 2010-10-21 | 2012-04-26 | Kamran Toudehfallah | Apparatus for connecting and sealing pipelines |
| CN102966808B (en) * | 2012-11-26 | 2015-09-23 | 深圳市广安消防装饰工程有限公司 | The installation method of fire-fighting pipe fitting |
| CN106322015B (en) * | 2015-06-30 | 2019-03-29 | 大连凯斯博格设备制造有限公司 | A kind of clamping hoop type assembling pipe joint |
-
2019
- 2019-09-23 CN CN201910898427.0A patent/CN110726017B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN110726017A (en) | 2020-01-24 |
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