CN112145830B - Installation method of fire-fighting pipe fitting - Google Patents
Installation method of fire-fighting pipe fitting Download PDFInfo
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- CN112145830B CN112145830B CN202011031921.6A CN202011031921A CN112145830B CN 112145830 B CN112145830 B CN 112145830B CN 202011031921 A CN202011031921 A CN 202011031921A CN 112145830 B CN112145830 B CN 112145830B
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- pipe
- pipe orifice
- orifice sleeve
- connecting pipe
- bolt
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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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
Abstract
The application relates to a fire-fighting pipe fitting and an installation method thereof, wherein the fire-fighting pipe fitting comprises two pipelines and a connecting pipe, wherein pipe orifice external members are fixedly sleeved on the peripheral surfaces of the ends, close to each other, of the two pipelines, the peripheral surfaces of the connecting pipes are sleeved with the two pipe orifice external members, and two ends of the connecting pipe are respectively communicated with the two pipelines; the connecting pipe outer peripheral face is provided with annular protruding, two convex terminal surfaces of annular all are provided with first rubber circle, two it orders about two pipe orifice sleeve spares to be provided with a plurality of groups between the mouth of pipe external member and is close to each other and supports respectively and closely adjacent the fastener of first rubber circle, it is a plurality of fastener circumference distributes in pipeline week side. This application has the effect that improves fire control pipe fitting water permeability.
Description
Technical Field
The application relates to the field of fire fighting, in particular to a fire fighting pipe fitting and an installation method thereof.
Background
According to the fire-fighting requirements, fire-fighting equipment such as indoor fire hydrant for fire extinguishing must be installed in the building. The indoor fire hydrant is an interface with a valve for supplying water to a fire place through an indoor pipe network, is used as an indoor fixed fire-fighting facility of buildings and the like, is usually installed in a fire hydrant box, and is matched with equipment such as a fire hose, a water gun, a fire hose reel and the like for use. The water supply pipeline in the building is divided into an independent domestic water pipeline and a fire pipeline, wherein the fire pipeline comprises a pipeline for connecting an indoor fire hydrant and a pipeline for connecting an indoor spraying device, and the indoor fire hydrant and the indoor spraying device are respectively connected with the indoor fire pipeline through parts such as a three-way joint and the like to provide water sources for the indoor fire hydrant and the spraying device.
The fire-fighting pipeline is formed by connecting fire-fighting pipe fittings, and general fire-fighting pipe fittings pass through the clamp connection, and the rethread threaded connection mode is fixed on the support body of floor to realize the connection of two pipelines in the fire-fighting pipe fittings.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the clamp is used, due to the fact that water flow speed in the fire fighting pipeline is not balanced, impact is generated on the fire fighting pipeline, the fire fighting pipeline is vibrated, and impact stress generated by the fire fighting pipeline is particularly concentrated at the clamp connection position. Along with the extension of the service life, the pipeline joint is easy to loosen, thereby causing the phenomenon of water leakage.
Disclosure of Invention
In order to improve the water seepage prevention effect of the fire-fighting pipe fitting, the application provides the fire-fighting pipe fitting and the installation method thereof.
The application provides a fire control pipe fitting and installation method thereof adopts following technical scheme:
the fire-fighting pipe fitting comprises two pipelines and a connecting pipe, wherein pipe orifice external members are fixedly sleeved on the outer peripheral surfaces of the ends, close to each other, of the two pipelines, the two pipe orifice external members are sleeved on the outer peripheral surfaces of the connecting pipe, and two ends of the connecting pipe are respectively communicated with the two pipelines; the connecting pipe outer peripheral face is provided with the annular arch, two bellied terminal surfaces of annular all are provided with first rubber circle, two it orders about two pipe orifice sleeve spares to be provided with a plurality of groups between the mouth of pipe external member and is close to each other and supports respectively and tightly adjacent the fastener of first rubber circle, it is a plurality of fastener circumference distributes in pipeline week side.
By adopting the technical scheme, the two pipe orifice external members are fixedly sleeved at the pipe orifices of the pipelines, and are respectively sleeved with the connecting pipe, so that the connecting pipe is communicated with the two pipelines, and the normal drainage function of the fire-fighting pipe fitting is realized; set up the annular protruding in the connecting pipe outside, set up first rubber circle at two terminal surfaces of annular protruding simultaneously to locking two mouth of pipe external members with the fastener, mouth of pipe external member supports first rubber circle tightly, and first rubber circle shutoff mouth of pipe external member and annular are protruding clearance between, thereby cut off intraductal water toward the route of exosmosis department, are favorable to improving the problem of fire control pipe fitting toward exosmosis in the use.
Preferably, a plurality of counter bores distributed circumferentially are formed in the outer peripheral surfaces of the two pipe orifice sleeve pieces, tapping screws with threads penetrating through the bottom walls of the counter bores are arranged in the counter bores, and the threads of each tapping screw penetrate into the outer peripheral surface of the pipeline.
Through adopting above-mentioned technical scheme, fix mouth of pipe external member and pipeline with self-tapping screw, be favorable to improving the stability of being connected between mouth of pipe external member and the pipeline, reduce the condition that mouth of pipe external member and pipeline break away from.
Preferably, each pipe orifice sleeve piece is penetrated with a plurality of through holes distributed circumferentially along the direction parallel to the axis of the pipe orifice sleeve piece, the through holes of the two pipe orifice sleeve pieces are aligned one by one, the fastener comprises a bolt arranged in the through holes aligned with each other in a penetrating manner and a nut in threaded connection with the end part of the bolt, and the bolt penetrates through the side walls of the counter bores of the two pipe orifice sleeve pieces and abuts against the upper end of the self-tapping screw.
By adopting the technical scheme, the bolts are simultaneously penetrated through the through holes which are opposite to each other in the two pipe orifice external members and are simultaneously screwed down by the nuts, so that the connection stability of the two pipe orifice external members is favorably improved; meanwhile, the bolt penetrates through the side wall of the counter bore and abuts against the upper end of the self-tapping screw, so that when the bolt locks the two pipe orifice external members, the self-tapping screw in the counter bore is limited, the probability that the self-tapping screw is separated from the counter bore is reduced, and the connection stability between the pipe orifice external members and the pipeline is further improved.
Preferably, the outer peripheral surface of one end of the connecting pipe is provided with an external thread, and the inner side wall of one of the pipe orifice sleeve is provided with an internal thread matched with the external thread.
Through adopting above-mentioned technical scheme to can be earlier with connecting pipe and mouth of pipe external member threaded connection, thereby improved the connecting pipe and be connected the steadiness with mouth of pipe external member, be convenient for the connecting pipe be connected with another mouth of pipe external member.
Preferably, one of them each of mouth of pipe external member the through-hole inside wall all opens towards the connecting pipe direction has the holding tank, holding tank sliding connection has the wedge, the holding tank diapire is provided with the most advanced elastic component that stretches out the holding tank of order about the wedge, the inclined plane of wedge is towards the through-hole opening.
Through adopting above-mentioned technical scheme, during the installation fastener, when wearing to locate the through-hole with the bolt, the inclined plane of bolt tip extrusion wedge to apply the extrusion force on this inclined plane of perpendicular to in the wedge, and produce the component towards holding tank diapire, thereby in squeezing the holding tank with the wedge, the wedge supports tight bolt outer peripheral face under the elastic force effect of elastic component, thereby is favorable to reducing the bolt and rotates and lead to the not hard up probability of this fastener.
Preferably, the wedge is provided with the inserted bar that runs through the holding tank diapire towards one side of holding tank diapire, the connecting pipe is kept away from the one end outer peripheral face of external screw thread and is seted up the card hole that a plurality of circumference distributes and supply the inserted bar to peg graft, works as when the mouth of pipe external member supports tightly adjacent first rubber circle and bolt and pegs graft in the through-hole, the inserted bar is pegged graft with the card hole.
Through adopting above-mentioned technical scheme, set up the inserted bar in wedge bottom and run through the holding tank diapire, when first rubber circle is in the pressurized state, the inserted bar is pegged graft with the card hole to improved the connecting steadiness of being connected of the one end that the connecting pipe does not take the screw thread and mouth of pipe external member, be favorable to reducing the probability of the pine of connecting pipe and mouth of pipe external member taking off.
Preferably, both ends of the connecting pipe are provided with second rubber rings, and the outer side walls of the second rubber rings are in sealing butt joint with the inner side walls of the pipelines.
Through adopting above-mentioned technical scheme, when the mouth of pipe cover box-joint is connected the pipe end portion, the second rubber circle stretch into in the pipeline and with the sealed butt of pipeline inside, the second rubber circle carries out the shutoff to the gap between mouth of pipe cover and the pipeline mouth of pipe, is favorable to improving this fire control pipe fitting's prevention of seepage water effect.
Preferably, a plurality of U-shaped limiting parts are arranged between the two pipe orifice sleeve parts, and when the two inner side walls, which are opposite to each other, of the U-shaped limiting parts are abutted against one side, which is away from the pipe orifice sleeve part, of the pipe orifice sleeve part, the axis of the inserted link coincides with the axis of the clamping hole.
Through adopting above-mentioned technical scheme, press from both sides tight adjacent first rubber circle respectively with two mouth of pipe external members with U type locating part, make the inserted bar aim at the card hole simultaneously, when the bolt of being convenient for inserts, inserted bar and card hole joint.
A method for installing a fire-fighting pipe fitting comprises the following specific steps:
a. installing a pipe orifice sleeve: sleeving the two pipe orifice external members at the pipe orifices of the two pipelines respectively, putting self-tapping screws into the counter bores, and locking the pipe orifice external members with the pipeline threads;
b. installing a connecting pipe: connecting one end of the connecting pipe with external threads with the pipe orifice sleeve with internal threads in a threaded manner until a second rubber ring at the end of the connecting pipe extends into the pipeline;
c. installing a fastener: inserting one of the bolts into a through hole of the nozzle assembly with the internal thread;
d. connecting two pipes and a connecting pipe: sleeving the other pipe orifice sleeve with the inserted rod inside at one end, far away from the external thread, of the connecting pipe, inserting the through hole in the pipe orifice sleeve into the end part of the bolt, and then pushing the pipe orifice sleeve in the annular protruding direction until the pipe orifice sleeve is abutted against the first rubber ring;
e. installing a U-shaped limiting part: two inner side walls, which are opposite to each other, of each U-shaped limiting part are abutted against one side, which is opposite to each other, of the pipe orifice sleeve, the U-shaped limiting parts force the pipe orifice sleeve to abut against the first rubber ring towards the annular protrusion direction, and the insertion rods are driven to align to the corresponding clamping holes;
f. locking a fastener: impel the bolt toward the wedge direction to order about the outer wedge inclined plane of bolt tip extrusion holding tank, force the wedge simultaneously and be crowded into in the holding tank, the wedge pushes down and drives the inserted bar and remove towards card hole direction, and the inserted bar is pegged graft fixedly with the card hole, inserts in corresponding the through-hole with other bolts after that, and stretches out the outer one end threaded connection of through-hole with nut and bolt, screws up the nut simultaneously, takes off each U type locating part at last.
Through adopting above-mentioned technical scheme, in the step of connecting pipeline and connecting pipe, the bolt has played the effect of direction, when making the inserted bar follow the mouth of pipe external member and remove, the bolt can restrict mouth of pipe external member and connecting pipe and take place relative rotation, make the removal route of inserted bar pass through the card hole, the inserted bar of being convenient for aims at the card hole, in the step of locking fastener, the bolt has played the locking function with the nut cooperation, and simultaneously, the bolt has played the role of driving the inserted bar and blocking the hole grafting in advancing the in-process, be favorable to realizing driving the wedge of through-hole inside, and the operation is thus simple, and the while is favorable to improving the pipeline, the connection steadiness between connecting pipe and the mouth of pipe external member three.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the pipe orifice external members at the end parts of the two pipelines are respectively sleeved on the peripheral surfaces of the two ends of the connecting pipe, so that the two ends of the connecting pipe are respectively communicated with the two pipelines, and the first rubber ring is tightly propped against the pipe orifice external members of the two pipelines while the pipe orifice external members of the two pipelines are connected through the fastening piece, thereby being beneficial to improving the water seepage prevention effect of the fire-fighting pipe fitting;
2. wear to establish in the through-hole through the bolt to the self-tapping screw who will fix mouth of pipe external member and pipeline supports, has reduced the condition that self-tapping screw deviates from, and the inserted bar on the wedge is ordered about through the grafting action of bolt and through-hole simultaneously pegs graft with the through-hole, is favorable to improving the connection steadiness between pipeline, connecting pipe and the mouth of pipe external member three.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a schematic view of the internal structure of the pipe and the connecting pipe in the embodiment of the present application.
Fig. 3 is an enlarged schematic view at a in fig. 2.
Description of reference numerals: 1. a pipeline; 2. a tube orifice sleeve; 21. a counter bore; 22. a self-tapping screw; 23. a through hole; 24. accommodating grooves; 25. an inner edge; 3. a U-shaped limiting part; 4. a fastener; 41. a bolt; 42. a nut; 43. a lock washer; 5. a connecting pipe; 51. a second rubber ring; 52. an annular projection; 53. a clamping hole; 54. a first rubber ring; 6. a wedge block; 61. inserting a rod; 7. an elastic member.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a fire-fighting pipe fitting and an installation method thereof. Referring to fig. 1 and 2, a fire fighting pipe fitting includes two pipes 1 and a connecting pipe 5 between the two pipes 1. The pipe orifice external member 2 is fixedly sleeved on the peripheral surface of one end of each of the two pipelines 1 close to each other. The one end that two mouth of pipe external members 2 are close to each other all inwards extends and forms the interior edge 25 of parcel pipeline 1 mouth of pipe edge, and interior edge 25 inside wall is flushed with pipeline 1 inside wall. The inner edges 25 of the two pipe orifice sleeve members 2 are respectively sleeved on the peripheral surfaces of the two pipelines 1. Two ends of the connecting pipe 5 are respectively communicated with the two pipelines 1. An annular protrusion 52 is fixed on the outer peripheral surface of the middle part of the connecting pipe 5, and the annular protrusion 52 extends circumferentially around the axis of the connecting pipe 5. The annular protrusion 52 is respectively bonded and fixed with first rubber rings 54 towards two end faces of the two nozzle sets 2, a plurality of groups of fastening pieces 4 are installed between the two nozzle sets 2, and the fastening pieces 4 are circumferentially distributed on the periphery of the pipeline 1. Thereby it is close to each other and support tight first rubber circle 54 to order about two mouth of pipe external member 2 through the retaining member to the clearance between mouth of pipe external member 2 and the annular bulge 52 has been shutoff, is favorable to improving the problem of the outside infiltration of fire control pipe fitting in the use. The edges of the openings at the two ends of the connecting pipe 5 are fixedly bonded with second rubber rings 51 positioned in the adjacent pipelines 1, and the outer side walls of the second rubber rings 51 are in sealing butt joint with the inner side walls of the pipelines 1. The second rubber ring 51 blocks the gap between the pipe orifice sleeve 2 and the pipe orifice of the pipeline 1, and is favorable for improving the water seepage prevention effect of the fire-fighting pipe fitting.
Referring to fig. 2 and 3, each nozzle set 2 has a plurality of circumferentially distributed through holes 23 extending in a direction parallel to the axis of the nozzle set 2, the through holes 23 of the two nozzle sets 2 are aligned one by one, and the fastening member 4 includes a bolt 41 inserted into the through holes 23 aligned with each other and a nut 42 threadedly connected to the end of the bolt 41. The end of the bolt 41 is sleeved with a lock washer 43 between the nut 42 and the nozzle set 2. The peripheral surfaces of the two pipe orifice sleeve members 2 are provided with a plurality of counter bores 21 which are circumferentially distributed and are respectively communicated with the through holes 23, each counter bore 21 is internally provided with a self-tapping screw 22 with threads penetrating through the bottom wall of the counter bore 21, and the self-tapping screws 22 penetrate into the peripheral surface of the pipeline 1. The outer peripheral surface of the bolt 41 abuts against the upper end of the tapping screw 22. The probability that the bolts 41 are separated is favorably reduced, the connection stability of the nozzle sets 2 and the pipeline 1 is favorably improved, and the connection stability between the two nozzle sets 2 is realized through the threaded matching of the bolts 41 and the nuts 42.
Referring to fig. 2, the outer circumferential surface of one end of the connecting pipe 5 is provided with an external thread, and the inner side wall of the pipe orifice sleeve 2 of one of the pipes 1 is provided with an internal thread matched with the external thread. The threaded connection of the connecting pipe 5 and the pipe orifice sleeve 2 is beneficial to improving the connection stability of one end of the connecting pipe 5 and the pipeline 1.
Referring to fig. 2 and 3, each through hole 23 inside wall of a nozzle set 2 close to the nut 42 is provided with a receiving groove 24 towards the direction of the connecting pipe 5, a wedge block 6 is slidably connected in the receiving groove 24, an elastic member 7 for driving the tip of the wedge block 6 to extend out of the receiving groove 24 is fixed on the bottom wall of the receiving groove 24, and the elastic member 7 is specifically a spring. When the wedge-shaped block 6 protrudes out of the accommodation groove 24, the inclined surface of the wedge-shaped block 6 opens toward one end of the through-hole 23 near the annular projection 52. Wedge 6 is fixed with the inserted bar 61 that runs through holding tank 24 diapire towards one side of holding tank 24 diapire, and connecting pipe 5 keeps away from the one end outer peripheral face of external screw thread and has offered a plurality of circumference and distribute and supply the card hole 53 that inserted bar 61 pegged graft, and when mouth of pipe external member 2 supported tightly adjacent first rubber circle 54 and bolt 41 pegged graft in through-hole 23, inserted bar 61 pegged graft with calorie hole 53. Thereby improving the connection stability of the connection pipe 5 and the nozzle set 2.
Referring to fig. 2 and 3, a plurality of U-shaped limiting members 3 are installed between the two pipe orifice suites 2, and the plurality of U-shaped limiting members 3 are circumferentially distributed around the axis of the pipe orifice suites 2. When two inner side walls opposite to each other of the U-shaped limiting part 3 abut against one side of the pipe orifice sleeve 2 deviating from each other, the two first rubber rings 54 are deformed under pressure, and the axis of the insertion rod 61 coincides with the axis of the clamping hole 53. The insertion rod 61 is aligned with the clamping hole 53, and the bolt 41 drives the insertion rod 61 to be inserted into the clamping hole 53 in the subsequent operation of installing the fastener 4.
A method for installing a fire-fighting pipe fitting comprises the following specific steps:
a. installing a pipe orifice sleeve: sleeving the two pipe orifice sleeve parts 2 at the pipe orifices of the two pipelines 1 respectively, placing the self-tapping screws 22 into the counter bores 21, and then penetrating the self-tapping screws 22 through the pipe orifice sleeve parts 2 by using a gun drill and driving the self-tapping screws into the outer walls of the pipelines 1, so that the pipe orifice sleeve parts 2 are locked with the pipelines 1;
b. installing a connecting pipe: connecting one end of the connecting pipe 5 with an external thread with the pipe orifice sleeve 2 with an internal thread in a threaded manner, rotating the connecting pipe 5 to drive the connecting pipe 5 to be screwed in the direction of the network pipeline 1 until the second rubber ring 51 at the end part of the connecting pipe 5 extends into the pipeline 1 and is abutted against the inner side wall of the pipeline 1 in a sealing manner;
c. installing a fastener: one of the bolts 41 is inserted into one of the through holes 23 of the boss member 2 having the internal thread;
d. connecting two pipes and a connecting pipe: sleeving the other pipe orifice sleeve 2 with the inserted rod 61 arranged therein on one end, far away from the external thread, of the connecting pipe 5, inserting the through hole 23 in the pipe orifice sleeve 2 into the end part of the bolt 41, then pushing the pipe orifice sleeve 2 towards the annular bulge 52 until the pipe orifice sleeve 2 abuts against the first rubber ring 54, and enabling the second rubber ring 51 at the end part of the pipe orifice sleeve 2 to stretch into the pipeline 1 and abut against the inner side wall of the second pipeline 1 in a sealing manner;
e. installing a U-shaped limiting part: two inner side walls, opposite to each other, of each U-shaped limiting part 3 are abutted against one side, opposite to each other, of the pipe orifice sleeve 2, the U-shaped limiting parts 3 force the pipe orifice sleeve 2 to abut against the first rubber ring 54 towards the direction of the annular bulge 52, and the insertion rods 61 are driven to align to the corresponding clamping holes 53;
f. locking a fastener: the bolt 41 is pushed towards the direction of the wedge-shaped block 6, the end part of the bolt 41 is driven to extrude the inclined surface of the wedge-shaped block 6 outside the accommodating groove 24, meanwhile, the wedge-shaped block 6 is forced to be extruded into the accommodating groove 24, the wedge-shaped block 6 is pressed downwards to drive the inserting rod 61 to move towards the direction of the clamping hole 53, the inserting rod 61 and the clamping hole 53 are fixedly inserted, then, other bolts 41 are inserted into the corresponding through holes 23, the nut 42 and the bolt 41 are connected through one end of the bolt 42 extending out of the through hole 23 in a threaded mode, meanwhile, the nut 42 is screwed, and finally, each U-shaped limiting part 3 is taken down.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (1)
1. A method for installing a fire-fighting pipe fitting is characterized by comprising the following steps: the pipe orifice sleeve comprises two pipelines (1) and a connecting pipe (5), wherein pipe orifice sleeve members (2) are fixedly sleeved on the peripheral surfaces of the ends, close to each other, of the two pipelines (1), the peripheral surfaces of the connecting pipes (5) are sleeved with the two pipe orifice sleeve members (2), and two ends of the connecting pipe (5) are respectively communicated with the two pipelines (1); an annular bulge (52) is arranged on the outer peripheral surface of the connecting pipe (5), first rubber rings (54) are arranged on two end faces of the annular bulge (52), a plurality of groups of fastening pieces (4) which drive the two pipe orifice sleeve pieces (2) to be close to each other and respectively abut against the adjacent first rubber rings (54) are arranged between the two pipe orifice sleeve pieces (2), and the fastening pieces (4) are circumferentially distributed on the peripheral side of the pipeline (1);
the outer peripheral surfaces of the two pipe orifice sleeve pieces (2) are provided with a plurality of counter bores (21) distributed in the circumferential direction, self-tapping screws (22) with threads penetrating through the bottom walls of the counter bores (21) are arranged in the counter bores (21), and the threads of the self-tapping screws (22) penetrate into the outer peripheral surface of the pipeline (1);
each nozzle sleeve (2) is provided with a plurality of through holes (23) distributed in the circumferential direction in a penetrating manner along the direction parallel to the axis of the nozzle sleeve (2), the through holes (23) of the two nozzle sleeves (2) are opposite to each other, each fastener (4) comprises a bolt (41) arranged in the through holes (23) opposite to each other in a penetrating manner and a nut (42) in threaded connection with the end part of the bolt (41), and the bolt (41) penetrates through the side walls of the counter bores (21) of the two nozzle sleeves (2) and abuts against the upper end of the self-tapping screw (22);
the outer peripheral surface of one end of the connecting pipe (5) is provided with an external thread, and the inner side wall of one of the pipe orifice sleeve pieces (2) is provided with an internal thread matched with the external thread;
an accommodating groove (24) is formed in the inner side wall of each through hole (23) of one of the pipe orifice sleeve members (2) towards the direction of the connecting pipe (5), a wedge block (6) is connected to the accommodating groove (24) in a sliding mode, an elastic piece (7) for driving the tip end of the wedge block (6) to extend out of the accommodating groove (24) is arranged on the bottom wall of the accommodating groove (24), and the inclined surface of the wedge block (6) is opened towards the through hole (23);
one side, facing the bottom wall of the accommodating groove (24), of the wedge-shaped block (6) is provided with an inserting rod (61) penetrating through the bottom wall of the accommodating groove (24), the outer peripheral surface of one end, far away from the external thread, of the connecting pipe (5) is provided with a plurality of clamping holes (53) which are circumferentially distributed and used for the inserting rod (61) to be inserted, and when the pipe orifice sleeve (2) abuts against the adjacent first rubber ring (54) and the bolt (41) is inserted into the through hole (23), the inserting rod (61) is inserted into the clamping holes (53);
two ends of the connecting pipe (5) are respectively provided with a second rubber ring (51), and the outer side wall of each second rubber ring (51) is in sealing butt joint with the inner side wall of the pipeline (1);
a plurality of U-shaped limiting parts (3) are arranged between the two pipe orifice sleeve parts (2), and when two inner side walls, which are opposite to each other, of the U-shaped limiting parts (3) are respectively abutted against one side, which is away from each other, of the pipe orifice sleeve parts (2), the axis of the inserted rod (61) is overlapped with the axis of the clamping hole (53);
further comprising the steps of:
a. installing a pipe orifice sleeve: sleeving the two pipe orifice external members (2) at the pipe orifices of the two pipelines (1) respectively, putting self-tapping screws (22) into the counter bores (21), and locking the pipe orifice external members (2) and the pipelines (1) in a threaded manner;
b. installing a connecting pipe: connecting one end of the connecting pipe (5) with an external thread with the pipe orifice sleeve (2) with an internal thread in a threaded manner until a second rubber ring (51) at the end part of the connecting pipe (5) extends into the pipeline (1);
c. installing a fastener: inserting one of the bolts (41) into a through hole (23) of the nozzle assembly (2) with the internal thread;
d. connecting two pipes and a connecting pipe: sleeving the other pipe orifice sleeve (2) with an inserted rod (61) arranged inside at one end, far away from the external thread, of the connecting pipe (5), inserting the through hole (23) in the pipe orifice sleeve (2) into the end part of the bolt (41), and then pushing the pipe orifice sleeve (2) towards the annular bulge (52) until the pipe orifice sleeve (2) is abutted against the first rubber ring (54);
e. installing a U-shaped limiting part: two inner side walls, which are opposite to each other, of each U-shaped limiting part (3) are abutted against one side, which is opposite to each other, of the pipe orifice sleeve (2), the U-shaped limiting parts (3) force the pipe orifice sleeve (2) to abut against the first rubber ring (54) towards the direction of the annular bulge (52), and the insertion rods (61) are driven to align to the corresponding clamping holes (53);
f. locking a fastener: the bolt (41) is pushed in the direction of the wedge-shaped block (6), the end part of the bolt (41) is driven to extrude the inclined surface of the wedge-shaped block (6) outside the accommodating groove (24), the wedge-shaped block (6) is simultaneously forced to be extruded into the accommodating groove (24), the wedge-shaped block (6) is pressed down to drive the inserting rod (61) to move towards the direction of the clamping hole (53), the inserting rod (61) and the clamping hole (53) are fixedly inserted, then other bolts (41) are inserted into the corresponding through holes (23), the nut (42) and the bolt (41) are connected through threads extending out of the through hole (23), the nut (42) is simultaneously screwed, and finally each U-shaped limiting part (3) is taken down.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011031921.6A CN112145830B (en) | 2020-09-27 | 2020-09-27 | Installation method of fire-fighting pipe fitting |
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| CN202011031921.6A CN112145830B (en) | 2020-09-27 | 2020-09-27 | Installation method of fire-fighting pipe fitting |
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| CN112145830A CN112145830A (en) | 2020-12-29 |
| CN112145830B true CN112145830B (en) | 2021-12-07 |
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| CN113374953B (en) * | 2021-06-08 | 2022-03-25 | 常州腾飞特材科技有限公司 | 0Cr18Ni10Ti seamless stainless steel tube |
| CN113446446B (en) * | 2021-08-04 | 2022-06-28 | 广东博智林机器人有限公司 | Bolt installation kit and pipeline installation assembly |
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| CN201891964U (en) * | 2010-11-11 | 2011-07-06 | 沈玉林 | Joint |
| US20170184232A1 (en) * | 2014-04-08 | 2017-06-29 | Odin Connect As | Method For Connecting A Coupling Device To Respective Ends Of Two Pipes, And Structure Of Said Coupling Device |
| CN207599192U (en) * | 2017-10-24 | 2018-07-10 | 江苏飞达不锈钢有限公司 | A kind of steel flange for preventing rotation from coming off |
| CN108548001A (en) * | 2018-07-04 | 2018-09-18 | 德阳市迪信佳阀门制造有限公司 | Valve anti-theft device |
| CN108644499A (en) * | 2018-05-08 | 2018-10-12 | 胡振强 | Dredging pipe leakproof connection device |
| CN210218972U (en) * | 2019-05-09 | 2020-03-31 | 陈艳 | Automobile flange plate with smooth surface |
-
2020
- 2020-09-27 CN CN202011031921.6A patent/CN112145830B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201891964U (en) * | 2010-11-11 | 2011-07-06 | 沈玉林 | Joint |
| US20170184232A1 (en) * | 2014-04-08 | 2017-06-29 | Odin Connect As | Method For Connecting A Coupling Device To Respective Ends Of Two Pipes, And Structure Of Said Coupling Device |
| CN207599192U (en) * | 2017-10-24 | 2018-07-10 | 江苏飞达不锈钢有限公司 | A kind of steel flange for preventing rotation from coming off |
| CN108644499A (en) * | 2018-05-08 | 2018-10-12 | 胡振强 | Dredging pipe leakproof connection device |
| CN108548001A (en) * | 2018-07-04 | 2018-09-18 | 德阳市迪信佳阀门制造有限公司 | Valve anti-theft device |
| CN210218972U (en) * | 2019-05-09 | 2020-03-31 | 陈艳 | Automobile flange plate with smooth surface |
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| Publication number | Publication date |
|---|---|
| CN112145830A (en) | 2020-12-29 |
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