CN217843046U - Stainless steel pipe joint capable of preventing leakage - Google Patents

Abstract

The utility model belongs to the technical field of pipe joints, in particular to a stainless steel pipe joint capable of preventing leakage, which comprises a connector and two sealing covers, wherein the two sealing covers are all in threaded connection with the outer side walls at the two ends of the connector, a corresponding hollow cylinder is arranged in the connector, a circular baffle is fixedly arranged on the inner wall at one end of the connector, a corresponding water inlet is arranged at the center of the circular baffle, a corresponding main water inlet hole is arranged at the center of one end of the hollow cylinder, which is close to the water inlet, a fixed plate is fixedly arranged on one side, which is far away from the circular baffle, of the inner side wall of the connector, the fixed plate is fixedly connected with the outer side wall of the hollow cylinder, and a plug is arranged between the circular baffle and the end wall of the hollow cylinder; the realization is injectd the maximum velocity of flow of liquid in the connector, has effectively solved the interior rivers velocity of connector and has leaded to the connector shake greatly, and then leads to connector and transfer line to be connected not hard up liquid and take place the defect of leaking, has improved the leakproofness of joint.

Description

Stainless steel pipe joint capable of preventing leakage

Technical Field

The utility model relates to a coupling technical field specifically is a can prevent nonrust steel pipe joint of leakage.

Background

The pipe joint is a part for connecting a pipeline in a hydraulic system or installing the pipeline on a hydraulic element, and is a general name of a connecting piece which can be assembled and disassembled in a fluid passage.

Stainless steel pipe joints in the current market are mostly connected with an infusion tube through fastening bolt butt-joint lugs in actual use, or are directly in threaded connection with the infusion tube to realize the communication of the pipeline.

The stainless steel pipe joint that has now causes transfer line and coupling vibration easily when the inside liquid velocity of flow of coupling is too big at the in-service use in-process to lead to fastening bolt not hard up, and then lead to coupling and transfer line junction not hard up the appearance gap, the liquid of carrying in the pipeline is easy via the gap outdiffusion between the two, consequently needs to design a can prevent the nonrust steel pipe joint of leakage and solves above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

In order to compensate the problem that the inside liquid flow velocity of prior art coupling too big leads to fastening bolt not hard up and then lead to pipeline liquid to leak, the utility model provides a can prevent stainless steel pipe joint of leakage.

The utility model provides a technical scheme that its technical problem adopted is: a stainless steel pipe joint capable of preventing leakage comprises a connector and two sealing covers, wherein the two sealing covers are in threaded connection with the outer side walls of two ends of the connector, a corresponding hollow cylinder is arranged in the connector, a circular baffle is fixedly arranged on the inner wall of one end of the connector, a corresponding water inlet is formed in the center of the circular baffle, a corresponding main water inlet hole is formed in the center of one end, close to the water inlet, of the hollow cylinder, a fixed plate is fixedly arranged on one side, away from the circular baffle, of the inner side wall of the connector, the fixed plate is fixedly connected with the outer side wall of the hollow cylinder, a plug is arranged between the circular baffle and the end wall of the hollow cylinder, two symmetrical connecting lugs are fixedly connected to two sides of the plug, a telescopic column is fixedly arranged on each connecting lug, one end, away from the connecting lugs, of the telescopic column is fixedly connected with the circular baffle, a spring is sleeved on the telescopic column, two ends of the spring are fixedly connected with the circular baffle and the connecting lugs respectively, a symmetrical auxiliary water inlet hole is formed in one end, away from the main water inlet hole, a plurality of the auxiliary water inlet holes are arranged on one side, close to the fixed plate, a matched with a plugging device is arranged in the hollow cylinder, and one end, away from the circular baffle is fixedly connected with a water outlet hole; liquid enters the hollow cylinder through the auxiliary water inlet hole and then flows out through the drain hole, the maximum flow speed of the liquid in the connector is limited, and the defect that the connector shakes due to the fact that the water flow speed in the connector is too high, and then the connector is connected with a liquid conveying pipe to loosen the liquid to cause leakage is effectively overcome.

Preferably, the plugging device comprises a plurality of groups of plugging plates which are uniformly distributed, each group of plugging plates is matched with the corresponding auxiliary water inlet hole, one end of the plug close to the hollow cylinder is fixedly provided with a connecting frame, one end of the connecting frame far away from the plug penetrates through the main water inlet hole inwards, and the connecting frame is fixedly connected with the plurality of groups of plugging plates; the link links into a whole with multiunit shutoff board and jam, utilizes the liquid stream to strike the jam motion to open vice inlet opening, thereby prescribe a limit to the interior liquid maximum velocity of flow of connector.

Preferably, a plurality of groups of uniformly distributed through holes are formed in each sealing cover, a hexagonal groove matched with the through holes is formed in one side, close to the center of the connector, of each sealing cover, corresponding fastening bolts are arranged in the through holes, hexagonal positioning blocks are sleeved on the fastening bolts, limiting sliding grooves in symmetrical positions are formed in the fastening bolts, and limiting sliding blocks matched with the limiting sliding grooves are formed in the hexagonal positioning blocks; when connector or transfer line vibration, the hexagonal locating piece can be fixed a position fastening bolt, avoids fastening bolt not hard up, leads to the transfer line not hard up with the connector, leads to the emergence of phenomenon such as liquid leakage.

Preferably, a layer of annular sealing gasket with uniform thickness is arranged on the inner wall of the sealing cover in a gasket mode, a sealing groove is formed in one side, away from the hexagonal groove, of the sealing cover, and the sealing groove is arranged in an annular mode; through the setting of annular sealing pad, strengthened sealed cowling and transfer line lateral wall complex leakproofness, the setting of sealed recess makes things convenient for transfer line and sealed cowling to dock the location, has further improved the sealing performance of connector.

Preferably, the plug is flared, the diameter of the opening at one end, close to the water inlet, of the plug is larger than that of the opening at the other end of the plug, and the main water inlet hole is also flared and matched with the plug; just, block up and carry out the shutoff to main inlet opening, block up and can be comparatively nimble realization to injecing the liquid velocity of flow in the connector with the cooperation of main inlet opening.

Preferably, the connecting frame comprises an axial rod and a plurality of radial rods, the axial rod is fixedly connected with the plug, one end of each radial rod is fixedly connected with the corresponding plugging plate, and the other ends of the radial rods are fixedly connected with the axial rod; the axial rod and the radial rod are matched for use, so that the plug and the multiple groups of plugging plates are connected together, the connection of the plug and the plugging plates is simple and convenient, and the production and processing difficulty is reduced.

The utility model discloses an useful part lies in:

1. when the water flow speed in the connector is too high, the water flow impacts the plug, the telescopic column extends out, the spring is stretched, the plug completely plugs the main water inlet hole, the plug plate and the auxiliary water inlet hole are staggered, and liquid enters the hollow cylinder through the auxiliary water inlet hole and flows out through the water outlet hole, so that the maximum flow speed of the liquid in the connector is limited, and the defect that the connector shakes due to the fact that the water flow speed in the connector is too high, and the liquid is connected with a liquid conveying pipe and is loosened to cause leakage is effectively overcome;

2. when connector and transfer line cooperate, insert fastening bolt in the through-hole that corresponds, screw up fastening bolt after, the manual hexagonal locating piece that promotes this moment, hexagonal locating piece pushes into in the hexagonal recess, the two is mutually supported, when connector or transfer line vibration, the hexagonal locating piece can be fixed a position fastening bolt, it is not hard up to avoid fastening bolt, it is not hard up to lead to transfer line and connector, lead to the emergence of phenomenons such as liquid leakage, the setting of annular sealing gasket, sealed cowling and transfer line lateral wall complex leakproofness have been strengthened, the setting of sealed recess, make things convenient for transfer line and sealed cowling to dock the location, the sealing performance of connector has further been improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic cross-sectional view of the interior of a connecting head according to a first embodiment;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic view of a fastening bolt and a hexagonal positioning block according to an embodiment;

FIG. 4 is a schematic view of a sealing cap and a connecting tube according to the first embodiment;

fig. 5 is a schematic view of a fitting structure of a sealing gasket and a hexagonal positioning block according to a second embodiment.

In the figure: the sealing device comprises a connector 1, a sealing cover 2, an annular sealing gasket 3, a sealing groove 4, a through hole 5, a hexagonal groove 6, a hollow cylinder 7, a fixing plate 8, a circular baffle 9, a water inlet 10, a main water inlet 11, a drain hole 12, a plug 13, a connecting lug 14, a telescopic column 15, a spring 16, a connecting frame 17, an auxiliary water inlet 18, a plugging plate 19, a fastening bolt 20, a hexagonal positioning block 21, a limiting sliding block 22, a limiting sliding groove 23 and a sealing gasket 24.

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 of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example one

Referring to fig. 1-4, a stainless steel pipe joint capable of preventing leakage comprises a connector 1 and two sealing covers 2, wherein the two sealing covers 2 are both in threaded connection with outer side walls of two ends of the connector 1, a corresponding hollow cylinder 7 is arranged in the connector 1, a circular baffle 9 is fixedly arranged on an inner wall of one end of the connector 1, a corresponding water inlet 10 is arranged at the center of the circular baffle 9, a corresponding main water inlet hole 11 is arranged at the center of one end, close to the water inlet 10, of the hollow cylinder 7, a fixing plate 8 is fixedly arranged on one side, far away from the circular baffle 9, of the inner side wall of the connector 1, the fixing plate 8 is fixedly connected with the outer side wall of the hollow cylinder 7, a plug 13 is arranged between the circular baffle 9 and the end wall of the hollow cylinder 7, connecting lugs 14 with symmetrical positions are fixedly connected to two sides of the plug 13, a telescopic column 15 is fixedly arranged on each connecting lug 14, one end, far away from the connecting lug 14, of the telescopic column 15 is fixedly connected with the circular baffle 9, a spring 16 is sleeved on the telescopic column 15, two ends of the spring 16 are respectively fixedly connected with the circular baffle 9 and the connecting lug 14, one side, a plug device is arranged on one side, which is close to the side, which is far away from the main water inlet hole 11, and is arranged on the plug device 18, and is arranged on the side of the hollow cylinder 7, and is arranged, and a plug device is arranged on the side of the fixing baffle 18, and is arranged on the side of the hollow cylinder 7; when liquid in the connector 1 normally flows, the auxiliary water inlet hole 18 is sealed by the sealing plate 19 at the moment, the liquid enters the hollow cylinder 7 through a gap between the plug 13 and the main water inlet hole 11 and then flows out through the water outlet hole 12, so that the liquid is conveyed, when the water flow speed in the connector 1 is overlarge, the plug 13 is impacted by the water flow at the moment, the telescopic column 15 extends out, the spring 16 is stretched, the plug 13 completely seals the main water inlet hole 11, the positions of the sealing plate 19 and the auxiliary water inlet hole 18 are staggered, the liquid enters the hollow cylinder 7 through the auxiliary water inlet hole 18 and then flows out through the water outlet hole 12, so that the maximum flow speed of the liquid in the connector 1 is limited, and the defect that the connector 1 shakes due to the overlarge water flow speed in the connector 1 and then the liquid is connected with a liquid conveying pipe and loosened to cause leakage is effectively solved.

The plugging device comprises a plurality of groups of plugging plates 19 which are uniformly distributed, each group of plugging plates 19 is matched with the corresponding auxiliary water inlet 18, one end of the plug 13 close to the hollow cylinder 7 is fixedly provided with a connecting frame 17, one end of the connecting frame 17 far away from the plug 13 is arranged to penetrate through the main water inlet 11 inwards, and the connecting frame 17 is fixedly connected with the plurality of groups of plugging plates 19; the connecting frame 17 connects a plurality of groups of blocking plates 19 and the plug 13 into a whole, and the plug 13 is impacted by liquid flow to move, so that the auxiliary water inlet hole 18 is opened, and the maximum flow speed of the liquid in the connector 1 is limited.

Each sealing cover 2 is provided with a plurality of groups of uniformly distributed through holes 5, one side of each sealing cover 2 close to the center of the connector 1 is provided with a hexagonal groove 6 matched with the through hole 5, corresponding fastening bolts 20 are arranged in the through holes 5, hexagonal positioning blocks 21 are sleeved on the fastening bolts 20, limiting chutes 23 with symmetrical positions are formed in the fastening bolts 20, and limiting sliding blocks 22 matched with the limiting chutes 23 are formed in the hexagonal positioning blocks 21; remove sealed cowling 2, make sealed cowling 2 closely cooperate with the transfer line, when connector 1 cooperates with the transfer line, insert fastening bolt 20 in the through-hole 5 that corresponds, after screwing up fastening bolt 20, manual promotion hexagonal locating piece 21 this moment, hexagonal locating piece 21 pushes in hexagonal recess 6, the two is mutually supported, when connector 1 or transfer line vibration, hexagonal locating piece 21 can fix a position fastening bolt 20, avoid fastening bolt 20 not hard up, lead to transfer line and connector 1 not hard up, lead to the emergence of phenomenons such as liquid leakage.

A layer of annular sealing gasket 3 with uniform thickness is arranged on the inner wall of the sealing cover 2 in a gasket mode, a sealing groove 4 is formed in one side, away from the hexagonal groove 6, of the sealing cover 2, and the sealing groove 4 is arranged in an annular mode; through the setting of annular sealing pad 3, strengthened sealed cowling 2 and transfer line lateral wall complex leakproofness, sealed recess 4's setting makes things convenient for transfer line and sealed cowling 2 to carry out the butt joint location, has further improved the sealing performance of connector 1.

The plug 13 is arranged in a horn shape, the diameter of the opening of the plug 13 close to one end of the water inlet 10 is larger than that of the opening of the other end of the plug 13, and the main water inlet hole 11 is also arranged in a horn shape matched with the plug 13; the purpose that sets up like this conveniently blocks up 13 and blocks up main inlet opening 11, blocks up 13 and can be comparatively nimble realization of cooperating with main inlet opening 11 and prescribe a limit to the interior liquid velocity of flow of connector 1.

The connecting frame 17 comprises an axial rod and a plurality of radial rods, the axial rod is fixedly connected with the plug 13, one ends of the radial rods are fixedly connected with the corresponding plugging plates 19, and the other ends of the radial rods are fixedly connected with the axial rod; the axial rod and the radial rod are matched for use, so that the plug 13 and the multiple groups of plugging plates 19 are connected together, the connection of the plug and the plugging plates is simple and convenient, and the production and processing difficulty is reduced.

Example two

Referring to fig. 5, as another implementation manner of the present invention, in the first comparative example, a circle of sealing gasket 24 with uniform thickness is disposed on a fixing pad at an end of each hexagonal positioning block 21 close to an inner wall of the hexagonal groove 6, and by the arrangement of the sealing gasket 24, the sealing performance of the abutting surface between the hexagonal positioning block 21 and the hexagonal groove 6 is improved, so as to prevent liquid from leaking out through the gap between the hexagonal positioning block 21 and the hexagonal groove 6 through the through hole 5.

The working principle is that the sealing cover 2 is moved to enable the sealing cover 2 to be tightly matched with an infusion tube, when the connector 1 is matched with the infusion tube, the fastening bolt 20 is inserted into the corresponding through hole 5, after the fastening bolt 20 is screwed down, the infusion tube is communicated with the connector 1, the hexagonal positioning block 21 is manually pushed at the moment, the hexagonal positioning block 21 is pushed into the hexagonal groove 6, the hexagonal positioning block and the hexagonal groove are mutually matched, when liquid in the connector 1 normally flows, the auxiliary water inlet hole 18 is blocked by the blocking plate 19 at the moment, the liquid enters the hollow cylinder 7 through a gap between the blocking plate 13 and the main water inlet hole 11 and then flows out through the drain hole 12, liquid conveying is achieved, when the water flow speed in the connector 1 is too high, the blocking plate 13 is impacted by the water flow, the telescopic column 15 extends out, the spring 16 is stretched, the blocking plate 13 completely blocks the main water inlet hole 11, the blocking plate 19 is staggered with the auxiliary water inlet hole 18, the liquid enters the hollow cylinder 7 through the auxiliary water inlet hole 18 and then flows out through the drain hole 12, and the maximum liquid flow speed in the connector 1 is limited.

In the description of the present specification, reference to the description of "one embodiment," "an example," "a specific example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims (6)

1. A stainless steel pipe joint capable of preventing leakage is characterized in that: including connector (1) and two sealed cowls (2), two equal threaded connection in connector (1) both ends lateral wall of sealed cowls (2), be provided with corresponding hollow cylinder (7) in connector (1), connector (1) one end inner wall is fixed and is provided with circular baffle (9), corresponding water inlet (10) are seted up to circular baffle (9) center department, corresponding main inlet opening (11) are seted up to one end center department that hollow cylinder (7) are close to water inlet (10), one side that circular baffle (9) were kept away from to connector (1) inside wall is fixed and is provided with fixed plate (8), fixed plate (8) and hollow cylinder (7) lateral wall fixed connection, be provided with between circular baffle (9) and hollow cylinder (7) end wall and block up (13), block up engaging lug (14) of (13) both sides fixed connection position symmetry, every all fixed telescopic column (15) that are provided with on engaging lug (14), telescopic column (15) keep away from one end and circular baffle (9) fixed connection of engaging lug (14), telescopic column (15) go up spring (16) cover and the main spring position and auxiliary connection lug (16) and auxiliary connection lateral wall (11) respectively of hollow cylinder (11) are seted up and auxiliary connection lateral wall (11) ) The auxiliary water inlet holes (18) are located on one side, close to the circular baffle (9), of the fixing plate (8), a plugging device matched with the auxiliary water inlet holes (18) is arranged in the hollow cylinder (7), the plugging device is fixedly connected with the plug (13), and a water outlet hole (12) is formed in one end, far away from the circular baffle (9), of the hollow cylinder (7).

2. A leak resistant stainless steel pipe joint as defined in claim 1, wherein: plugging device includes multiunit evenly distributed's shutoff board (19), every group shutoff board (19) all matches the setting with vice inlet opening (18) that correspond, the one end that blocks up (13) and be close to hollow section of thick bamboo (7) is fixed and is provided with link (17), link (17) are kept away from the one end that blocks up (13) and are inwards run through main inlet opening (11) and set up, and link (17) and multiunit shutoff board (19) fixed connection.

3. A leak resistant stainless steel pipe joint as defined in claim 1, wherein: every through-hole (5) of seting up multiunit evenly distributed on sealed cowling (2), hexagonal recess (6) that match with through-hole (5) are seted up to one side that sealed cowling (2) are close to connector (1) center department, be provided with corresponding fastening bolt (20) in through-hole (5), the cover is equipped with hexagonal locating piece (21) on fastening bolt (20), set up position symmetry's spacing spout (23) on fastening bolt (20), set up spacing slider (22) that spacing spout (23) match on hexagonal locating piece (21).

4. A leak resistant stainless steel pipe joint as defined in claim 3 wherein: the inner wall of the sealing cover (2) is provided with an annular sealing gasket (3) with uniform thickness, a sealing groove (4) is formed in one side, away from the hexagonal groove (6), of the sealing cover (2), and the sealing groove (4) is formed in an annular shape.

5. A leak resistant stainless steel pipe joint as defined in claim 1, wherein: the plug (13) is arranged to be horn-shaped, the diameter of the plug (13) close to the opening at one end of the water inlet (10) is larger than that of the plug (13) close to the opening at the other end of the water inlet, and the main water inlet hole (11) is also arranged to be horn-shaped matched with the plug (13).

6. A leak resistant stainless steel pipe joint as defined in claim 2, wherein: link (17) include axial rod and a plurality of radial pole, axial rod and jam (13) fixed connection, it is a plurality of radial pole one end and shutoff board (19) fixed connection that correspond, and the radial pole other end of multiunit all with axial rod fixed connection.

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