CN116045106B - Pipe joint and forest fire extinguishing device - Google Patents

Abstract

The invention discloses a pipe joint and a forest fire extinguishing device, and belongs to the field of pipe joints. A pipe joint, comprising: the main joint, still include: the auxiliary joint is connected with one end of the main joint; the fixing column is fixed at one end of the auxiliary joint far away from the main joint; the first drainage groove is formed in the fixed column; the second drainage groove is formed in the fixed column and is symmetrically arranged with the first drainage groove; the first sealing table is arranged in the first drainage groove; the second sealing table is arranged in the second drainage groove; the rotating column is rotatably arranged on the fixed column; according to the invention, when water leakage occurs between the first sealing table and the sub-joint, stable water supply can be realized without replacing the pipe joint, so that the time delay of replacing the pipe joint is effectively prevented from mistaking the fire extinguishing time.

Description

Pipe joint and forest fire extinguishing device

Technical Field

The invention relates to the technical field of pipe joints, in particular to a pipe joint and a forest fire extinguishing device.

Background

The pipe joint refers to a pipeline joint on a forest fire pump or a fire hydrant, mainly adopts a connecting structure of a fire hose and the fire hydrant or the fire pump, mainly plays a role in connection and sealing, and when a forest fire disaster occurs, a sub-joint on the fire hose is connected to the pipe joint, and then fire is extinguished at different places through an extension water hose, so that the pipe joint plays an important role in forest fire prevention.

The existing pipe joint is connected in a form of a primary-secondary joint, for example, the pipe joint on a water pump in a fire engine is subjected to multi-time fire extinguishment, the primary joint is in clamping friction with the primary joint for a long time, so that the primary joint is possibly worn, but water leakage can be observed or detected only after the water pump is started, the primary joint on the water pump needs to be replaced, the replacement time is long, and the best fire extinguishment time is possibly delayed.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a pipe joint and a forest fire extinguishing device which can overcome the problems or at least partially solve the problems.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

a pipe joint, comprising: the main joint, still include: the auxiliary joint is connected with one end of the main joint; the fixing column is fixed at one end of the auxiliary joint far away from the main joint; the first drainage groove is formed in the fixed column; the second drainage groove is formed in the fixed column and is symmetrically arranged with the first drainage groove; the first sealing table is arranged in the first drainage groove; the second sealing table is arranged in the second drainage groove; the rotating column is rotatably arranged on the fixed column; the mounting groove is formed in the rotating column; the sub-connector is clamped in the mounting groove, and the first sealing table and the second sealing table are matched with the sub-connector; the detection assembly is arranged on the lower side of the fixed column and is used for detecting the water leakage quantity of the first sealing table and the sub-joint, when water in the detection assembly reaches a set value, the first sealing table slides towards the direction close to the auxiliary joint, and the rotary column rotates for half a circle to enable the second sealing table to be sealed with the sub-joint.

In order to facilitate buffering and sealing of the auxiliary joint, preferably, the main joint is internally and symmetrically fixedly connected with baffle rings, two baffle rings are fixedly connected with buffer rings, one end of the auxiliary joint, which is far away from the fixed column, is fixedly connected with a sliding ring, one end of the sliding ring is hermetically and slidably arranged between the two baffle rings, the main joint is fixedly connected with a first electromagnetic ring, the auxiliary joint is fixedly connected with a second electromagnetic ring matched with the main joint, and the first electromagnetic ring and the second electromagnetic ring are matched with the detection assembly.

In order to facilitate sliding of the first sealing platform in the first drainage groove, preferably, a first fixing ring is fixedly connected in the first drainage groove, a first connecting ring is fixedly connected on the first fixing ring, the first sealing platform is in sealing sliding on the first connecting ring, a plurality of groups of first springs are fixedly connected between the first connecting ring and the first sealing platform, a first sliding rod is fixedly connected on the first electromagnetic ring, a first sleeve is fixedly connected on the fixing column, one end of the first sliding rod is in sealing sliding in the first sleeve, a first piston is fixedly connected at one end of the first sliding rod in the first sleeve, and a first connecting pipe is arranged between the bottom of the first sleeve and the first sealing platform.

In order to be convenient for detect the weeping condition of sub-joint and first sealing station, preferably, detection assembly includes the water catch bowl that matches with the fixed column, water catch bowl downside fixedly connected with U type pipe, the intraductal fixedly connected with spacing ring of U type, be provided with the showy piece on the spacing ring, fixedly connected with conducting rod on the showy piece, fixedly connected with and the conducting block that the conducting rod matches on the U type pipe, fixedly connected with and the locating lever that floats the piece and match on the spacing ring.

In order to facilitate the sealing of the second sealing platform and the sub-joint, preferably, a second fixing ring is fixedly connected in the second drainage groove, a second connecting ring is fixedly connected on the second fixing ring, the second sealing platform slides on the second connecting ring in a sealing manner, and a plurality of groups of second springs are fixedly connected between the second sealing platform and the second connecting ring.

In order to facilitate improvement of the sealing effect of the second sealing table and the sub-joint, preferably, a second sleeve is fixedly connected to the first electromagnetic ring, a second sliding rod is arranged in the second sleeve in a sealing sliding manner, one end of the second sliding rod, which is far away from the second sleeve, is fixedly connected with a fixed column, one end of the second sliding rod, which is in the second sleeve, is fixedly connected with a second piston, and a second connecting pipe is arranged between one end, which is close to the fixed column, of the second sleeve and the second sealing table.

For the rotation of the rotation post of being convenient for, preferably, fixedly connected with holding ring on the fixed column, the holding ring passes through torsional spring with the rotation post and is connected, symmetrical fixedly connected with gag lever post on the rotation post, the torsional spring is connected with first pivot on the holding ring, symmetrical in the first pivot is fixed with the connecting plate, and two connecting plate and gag lever post assorted, be provided with on the first electromagnetic ring and be used for driving connecting plate along first pivot pivoted drive assembly.

In order to facilitate the control of the rotation of the connection plates along the first rotation axis, preferably, a second rotation axis is rotatably connected between the two connection plates, and the driving assembly comprises a pull rope fixed between the second rotation axis and the first electromagnetic ring.

In order to facilitate sealing of the first drainage groove, preferably, a first sliding cavity is arranged in the rotating column, a sealing column is arranged in the first sliding cavity in a sealing sliding mode, and a third spring is fixedly connected between the sealing column and the first sliding cavity.

The forest fire extinguishing device comprises a pipe joint and a pump body, wherein the output end of the pump body is fixedly connected with a water outlet pipe, and the water outlet pipe is in sealing connection with a main joint flange.

Compared with the prior art, the invention provides the pipe joint, which has the following beneficial effects:

1. this coupling, through detecting the water collection that the subassembly was to spilling, detect the water in the subassembly and reach the setting value after, first sealing station is slided to the direction of auxiliary joint, and the swivelling column rotates half circle, the swivelling column rotates half circle after, second sealing station is corresponding with the sub-joint, then second sealing station is slided in the sub-joint, realize with the sealing of sub-joint, and the front end of first sealing station is sealed with the surface realization of swivelling column, when first sealing station appears leaking with the sub-joint, can not need to change the coupling and realize stable water supply, thereby prevent effectively that the time delay of changing the coupling from mistake fire extinguishing opportunity.

2. The pipe joint slides on the first sliding rod through the first sleeve, the first piston extracts gas in the first sealing platform through the first connecting pipe, the gas pressure in the first sealing platform gradually reduces, the first sealing platform slides out of the sub-joint, at the moment, the rotating column starts to rotate, after half a circle of rotation, the second sealing platform slides in the sub-joint under the action of the second spring, and sealing with the sub-joint is achieved, so that the connection position of the sub-joint is effectively changed, and the time delay of fire extinguishment during pipe joint replacement is prevented.

3. The pipe joint enables the total volume in the main joint and the auxiliary joint to be increased instantaneously in the process of sliding out the auxiliary joint, so that the water pressure can be effectively buffered, the rotating column can be conveniently rotated, and the replacement speed of the position of the auxiliary joint can be effectively improved.

The device has the advantages that when the first sealing table and the sub-joint leak water, stable water supply can be realized without replacing the pipe joint, so that the time delay of replacing the pipe joint is effectively prevented from mistaking the fire extinguishing time.

Drawings

FIG. 1 is a schematic cross-sectional view of a pipe joint according to the present invention;

FIG. 2 is an enlarged schematic view of the pipe joint of FIG. 1A according to the present invention;

FIG. 3 is an enlarged schematic view of a pipe joint according to the present invention at B in FIG. 1;

FIG. 4 is an enlarged schematic view of a pipe joint according to the present invention at C in FIG. 1;

FIG. 5 is a schematic view of a pipe joint according to the present invention;

FIG. 6 is an enlarged schematic view of a pipe joint according to the present invention at D in FIG. 5;

FIG. 7 is a schematic view of an explosion structure of a pipe joint according to the present invention;

FIG. 8 is a schematic cross-sectional view of a main joint of a pipe joint according to the present invention;

fig. 9 is a schematic structural view of a forest fire extinguishing apparatus according to the present invention;

FIG. 10 is a schematic cross-sectional view of a U-shaped pipe of a pipe joint according to the present invention;

fig. 11 is a schematic diagram illustrating connection between a rotary post and a support ring of a pipe joint according to the present invention.

In the figure: 1. a main joint; 101. a baffle ring; 102. a buffer ring; 103. a first electromagnetic ring; 2. an auxiliary joint; 201. a slip ring; 202. a second electromagnetic ring; 203. fixing the column; 204. a first drain tank; 205. a second drain tank; 3. a first sleeve; 301. a first slide bar; 302. a first piston; 303. a vent pipe; 304. a circular groove; 4. a second sleeve; 401. a second slide bar; 402. a second piston; 5. a first fixing ring; 501. a first connection ring; 502. a first sealing stage; 503. a first spring; 504. a first connection pipe; 505. a second fixing ring; 506. a second connecting ring; 507. a second sealing stage; 508. a second spring; 509. a second connection pipe; 6. rotating the column; 601. a support ring; 602. a mounting groove; 603. a clamping groove; 604. a limit rod; 605. a first rotating shaft; 606. a connecting plate; 607. a second rotating shaft; 608. a pull rope; 7. a first sliding cavity; 701. a sealing column; 702. a third spring; 8. a sub-joint; 801. a clamping block; 9. a bending plate; 901. an electric telescopic rod; 902. a water collection tank; 903. a U-shaped tube; 904. a limiting ring; 905. a floating block; 906. a conductive rod; 907. a conductive block; 908. a pump body; 909. and a water outlet pipe.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

Example 1: referring to fig. 1, 2, 3, 4 and 7, a pipe joint, comprising: the main joint 1 further comprises: the auxiliary joint 2 is connected to one end of the main joint 1; a fixing column 203 fixed at one end of the auxiliary joint 2 away from the main joint 1; a first drainage groove 204 formed on the fixing column 203; the second water draining groove 205 is arranged on the fixed column 203, and the second water draining groove 205 and the first water draining groove 204 are symmetrically arranged; a first sealing land 502 disposed in the first drain tank 204; a second sealing stage 507 disposed in the second drain tank 205; a rotation column 6 rotatably provided on the fixed column 203; a mounting groove 602 provided on the rotation column 6; the sub-joint 8 is clamped in the mounting groove 602, and the first sealing table 502 and the second sealing table 507 are matched with the sub-joint 8; the detection component is arranged on the lower side of the fixed column 203 and is used for detecting the water leakage quantity of the first sealing table 502 and the sub-joint 8, when the water in the detection component reaches a set value, the first sealing table 502 slides towards the direction close to the auxiliary joint 2, and the rotary column 6 rotates for half a circle to enable the second sealing table 507 to be sealed with the sub-joint 8.

In forest fire prevention, a main joint 1 is detachably and hermetically connected with the water outlet end of an external pump set, when a fire disaster occurs, a sub-joint 8 connected with a fire-proof water band is clamped in an installation groove 602, and a first sealing table 502 is inserted into the sub-joint 8 and is sealed with the sub-joint 8;

when the first sealing table 502 is worn, the sealing effect of the first sealing table 502 and the sub-joint 8 is reduced, when high-pressure water is conveyed, if water leakage occurs between the first sealing table 502 and the sub-joint 8, leaked water is collected through the detection assembly, after the water in the detection assembly reaches a set value, the first sealing table 502 slides towards the direction of the auxiliary joint 2, the rotary column 6 rotates for half a circle, after the rotary column 6 rotates for half a circle, the second sealing table 507 corresponds to the sub-joint 8, the second sealing table 507 slides towards the sub-joint 8 to realize sealing with the sub-joint 8, and the front end of the first sealing table 502 and the surface of the rotary column 6 realize sealing.

The first sealing table 502 and the second sealing table 507 may be made of, but not limited to, stainless steel, and the front end side is provided with fluororubber as a sealing ring.

Example 2: referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 7, fig. 8 and fig. 10, a pipe joint is basically the same as embodiment 1, further, the inside of the main joint 1 is symmetrically and fixedly connected with baffle rings 101, two baffle rings 101 are fixedly connected with buffer rings 102, one end of an auxiliary joint 2, which is far away from a fixed column 203, is fixedly connected with a sliding ring 201, one end of the sliding ring 201 slides between the two baffle rings 101 in a sealing manner, a first electromagnetic ring 103 is fixedly connected to the main joint 1, a second electromagnetic ring 202 matched with the main joint 1 is fixedly connected to the auxiliary joint 2, and the first electromagnetic ring 103 and the second electromagnetic ring 202 are matched with a detection assembly.

The first water drainage tank 204 is internally fixedly connected with a first fixed ring 5, the first fixed ring 5 is fixedly connected with a first connecting ring 501, a first sealing platform 502 is hermetically and slidably arranged on the first connecting ring 501, a plurality of groups of first springs 503 are fixedly connected between the first connecting ring 501 and the first sealing platform 502, a first sliding rod 301 is fixedly connected on the first electromagnetic ring 103, a first sleeve 3 is fixedly connected on the fixed column 203, one end of the first sliding rod 301 is hermetically and slidably arranged in the first sleeve 3, one end of the first sliding rod 301 is fixedly connected with a first piston 302 in the first sleeve 3, and a first connecting pipe 504 is arranged between the bottom of the first sleeve 3 and the first sealing platform 502.

The detection assembly comprises a water collecting tank 902 matched with the fixing column 203, a U-shaped pipe 903 is fixedly connected to the lower side of the water collecting tank 902, a limiting ring 904 is fixedly connected to the inside of the U-shaped pipe 903, a floating block 905 is arranged on the limiting ring 904, a conductive rod 906 is fixedly connected to the floating block 905, a conductive block 907 matched with the conductive rod 906 is fixedly connected to the U-shaped pipe 903, and a positioning rod matched with the floating block 905 is fixedly connected to the limiting ring 904.

The second water draining groove 205 is fixedly connected with a second fixing ring 505, the second fixing ring 505 is fixedly connected with a second connecting ring 506, the second sealing table 507 slides on the second connecting ring 506 in a sealing way, and a plurality of groups of second springs 508 are fixedly connected between the second sealing table 507 and the second connecting ring 506.

When water leakage occurs between the sub-joint 8 and the first sealing table 502, the water falls into the water collecting tank 902, then the water is collected by the water collecting tank 902 and falls into the U-shaped pipe 903, so that the water level in the U-shaped pipe 903 rises, and the floating block 905 gradually moves upwards;

when the conducting rod 906 and the conducting block 907 are electrified, the controller receives weak current signals of the conducting rod 906 and the conducting block 907, the controller controls the first electromagnetic ring 103 and the second electromagnetic ring 202 to be powered off, the auxiliary joint 2 slides forwards for a certain distance under the action of water pressure, and at the moment, the sliding ring 201 extrudes one buffer ring 102 to enable the main joint 1 and the auxiliary joint 2 to be sealed;

when the auxiliary joint 2 slides out, the first sleeve 3 slides on the first sliding rod 301, the first piston 302 extracts the gas in the first sealing platform 502 through the first connecting pipe 504, the gas pressure in the first sealing platform 502 gradually decreases, the first sealing platform 502 slides out of the sub-joint 8, at the moment, the rotating column 6 starts to rotate, after half a turn, the second sealing platform 507 slides into the sub-joint 8 under the action of the second spring 508, and sealing with the sub-joint 8 is realized, so that the connection position of the sub-joint 8 is effectively changed, and the time delay of fire extinguishing when the pipe joint is replaced is prevented;

in the process of sliding out the auxiliary joint 2, the total volume in the main joint 1 and the auxiliary joint 2 is increased instantaneously, so that the water pressure can be effectively buffered, the rotary column 6 can be conveniently rotated, and the position replacement speed of the auxiliary joint 8 can be effectively improved.

It should be noted that, an external controller is disposed in the water collecting tank 902, and the controller is used to control on-off of the first electromagnetic ring 103 and the second electromagnetic ring 202, where the rotating column (6) may be, but is not limited to, an external motor, and the motor may be typically connected to the controller.

Example 3: referring to fig. 1, 2, 3, 4, 5, 6, 7, 8 and 10, a pipe joint is basically the same as that of embodiment 1, and further, a second sleeve 4 is fixedly connected to the first electromagnetic ring 103, a second sliding rod 401 is sealed and slid in the second sleeve 4, one end of the second sliding rod 401 away from the second sleeve 4 is fixedly connected to the fixed column 203, one end of the second sliding rod 401 in the second sleeve 4 is fixedly connected to a second piston 402, and a second connecting pipe 509 is disposed between one end of the second sleeve 4 close to the fixed column 203 and the second sealing table 507.

Fixedly connected with support ring 601 on the fixed column 203, support ring 601 passes through torsional spring connection with rotation post 6, and symmetrical fixedly connected with gag lever post 604 on the rotation post 6, torsional spring connection has first pivot 605 on the support ring 601, and symmetrical being fixed with connecting plate 606 on the first pivot 605, and two connecting plates 606 and gag lever post 604 assorted are provided with the drive assembly who is used for driving connecting plate 606 along first pivot 605 pivoted on the first electromagnetic ring 103.

When the auxiliary joint 2 slides out, the second sleeve 4 slides on the second sliding rod 401, and gas in the second sleeve 4 is conveyed into the second sealing platform 507 through the second connecting pipe 509, so that the second sealing platform 507 stores energy, and when the sub-joint 8 contacts with the second drainage groove 205, the second sealing platform 507 slides into the sub-joint 8 instantly, so that the sealing effect of the second sealing platform 507 and the sub-joint 8 is effectively improved, and secondary water leakage of the sub-joint 8 is effectively prevented;

when the second sliding rod 401 slides out of the second sleeve 4, the air pressure in the second sealing table 507 is gradually increased, and at the moment, the resistance to the second piston 402 is increased, so that the sliding ring 201 on the auxiliary joint 2 is effectively buffered, and the damage to the baffle ring 101 caused by the excessively high sliding-out speed of the auxiliary joint 2 is prevented;

when the auxiliary joint 2 slides out of the main joint 1, the first driving assembly drives the two connecting plates 606 to rotate along the first rotating shaft 605, the limit of the limiting rod 604 is released, the rotating column 6 instantaneously rotates under the action of the torsion spring, and therefore rotation of the rotating column 6 is achieved, and transposition of the auxiliary joint 8 is facilitated.

Example 4: referring to fig. 1, 2, 3, 4, 5, 7 and 8, a pipe joint is basically the same as that of embodiment 1, and further, a second rotating shaft 607 is rotatably connected between two connecting plates 606, and a driving assembly includes a pull rope 608 fixed between the second rotating shaft 607 and the first electromagnetic ring 103.

The rotary column 6 is internally provided with a first sliding cavity 7, a sealing column 701 is hermetically and slidably arranged in the first sliding cavity 7, and a third spring 702 is fixedly connected between the sealing column 701 and the first sliding cavity 7.

When the auxiliary joint 2 slides out, the first electromagnetic ring 103 pulls the pull rope 608, one end of the pull rope 608 is wound on the second rotating shaft 607, at this time, the second rotating shaft 607 rotates rapidly, and in the process of rotating the second rotating shaft 607, as the sum of the pulling force of the pull rope 608 on the second rotating shaft 607 and the rotating resistance of the second rotating shaft 607 is larger than the force of the torsion spring of the first rotating shaft 605, the two connecting plates 606 rotate slowly along the axis of the first rotating shaft 605, so that the second sealing table 507 can store energy for the rotating column 6 first and then rotate, and the tightness of the second sealing table 507 and the sub joint 8 can be ensured;

the sealing post 701 is tightly attached to the rotating post 6 under the action of the third spring 702, and when the rotating post 6 does not rotate, one end of the sealing post 701 is inserted into the second water draining groove 205 to realize sealing with the side wall of the second water draining groove 205, and the end face of the second sealing table 507 contacts with the end face of the sealing post 701 to realize sealing again, so that the sealing effect is effectively improved;

when the rotary column 6 rotates, the sealing column 701 slides into the first water discharge groove 204 under the action of the third spring 702, on one hand, the sealing column 701 seals with the end face of the first sealing table 502, and the sealing column 701 seals with the side wall of the first water discharge groove 204, so that the fire extinguishment of the pipe joint is effectively prevented from being influenced by water leakage;

when the second sealing table 507 stores energy, the second sealing table 507 gradually presses the sealing column 701, and the sealing column 701 gradually slides into the first sliding cavity 7, so that the limit of the sealing column 701 to the rotating column 6 is released.

It should be noted that, the elastic force of the third spring 702 is greater than the elastic force of the plurality of groups of second springs 508, the elastic force of the second springs 508 is the same as the elastic force of the first springs 503, and when the sealing post 701 slides to the limit position in the first sliding cavity 7, the end face of the sealing post 701 is flush with the end face of the rotating post 6, and the force of the torsion spring on the first rotating shaft 605 is the same as the resistance of the second rotating shaft 607 and the connecting plate 606.

Example 5: referring to fig. 1, 2, 5, 7 and 8, a pipe joint is basically the same as that of embodiment 1, and further, a clamping groove 603 is symmetrically formed in a mounting groove 602, clamping blocks 801 matched with the clamping groove 603 are symmetrically arranged on a sub-joint 8, a first sealing table 502 and a second sealing table 507 are both in a circular truncated cone shape, a bending plate 9 is symmetrically fixed on a first electromagnetic ring 103, an electric telescopic rod 901 is fixedly connected to the bending plate 9, and the electric telescopic rod 901 is matched with a second electromagnetic ring 202.

The first sleeve 3 is provided with a circular groove 304.

A vent pipe 303 is fixedly connected between the first sleeve 3 and the first sliding cavity 7.

When the sub-joint 8 is installed, the clamping blocks 801 on the sub-joint 8 are clamped into the clamping grooves 603, at the moment, the first electromagnetic ring 103 and the second electromagnetic ring 202 are in a non-electrified state, the pressure intensity in the first sealing platform 502 is high, a small amount of gas enters the first sleeve 3, the auxiliary joint 2 slides out a small distance, the tension force of the first sealing platform 502 is reduced, so that the clamping of the rotating column 6 is facilitated, then the first electromagnetic ring 103 and the second electromagnetic ring 202 are electrified through the controller, the limit of the second electromagnetic ring 202 is released by shrinkage of the two electric telescopic rods 901, the first electromagnetic ring 103 and the second electromagnetic ring 202 are instantly adsorbed, the tension force of the first sealing platform 502 is increased, the sealing effect of the sub-joint 8 is effectively improved, the clamping force of the sub-joint 8 and the clamping grooves 603 is effectively improved, and the sub-joint 8 is prevented from loosening;

when the first slide rod 301 slides out of the first sleeve 3, the high-pressure gas in the first sealing platform 502 firstly enters the first sleeve 3, after the first piston 302 moves to the left side of the circular groove 304, part of the gas in the first sealing platform 502 enters the first sleeve 3 and is rapidly discharged through the circular groove 304, when the first piston 302 continues to rapidly move, the air extraction efficiency of the first piston 302 is greater than the air inlet rate of the circular groove 304, so that the first sealing platform 502 slides out of the sub-joint 8, and the rotating column 6 immediately rotates after the first sealing platform 502 slides out, thereby effectively reducing the water overflow amount of the water in the first water drainage groove 204;

when the first piston 302 slides to the left, the gas on the left side of the first sleeve 3 is discharged through the circular groove 304 and then enters the first sliding cavity 7 through the vent pipe 303, so that the sealing column 701 is effectively pressed, and the sealing effect of the sealing column 701 and the first drainage groove 204 is effectively improved;

the circular groove 304 is designed to facilitate the second sealing land 507 to press against the sealing post 701.

The first sleeve 3 and the second sleeve 4 have the same specifications, and the diameter of the first slide bar 301 is larger than the diameter of the second slide bar 401.

Example 6: referring to fig. 10, a forest fire extinguishing apparatus includes a pipe joint, and further includes a pump body 908, wherein an output end of the pump body 908 is fixedly connected with a water outlet pipe 909, and the water outlet pipe 909 is in flange sealing connection with a main joint 1.

The main fitting 1 is flange-connected to the outlet pipe 909 of the pump body 908, and after the fire extinguishing, if the auxiliary fitting 2 is slid out, the entire pipe joint is replaced.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (10)

1. A pipe joint, comprising: main joint (1), its characterized in that still includes:

the auxiliary joint (2) is connected to one end of the main joint (1);

the fixing column (203) is fixed at one end of the auxiliary joint (2) far away from the main joint (1);

a first drainage groove (204) which is arranged on the fixed column (203);

the second drainage groove (205) is formed in the fixed column (203), and the second drainage groove (205) and the first drainage groove (204) are symmetrically arranged;

a first sealing stage (502) disposed within the first drain tank (204);

a second sealing stage (507) disposed in the second drain tank (205);

a rotating column (6) rotatably provided on the fixed column (203);

a mounting groove (602) arranged on the rotating column (6);

the sub-joint (8) is clamped in the mounting groove (602), and the first sealing table (502) and the second sealing table (507) can be matched with the sub-joint (8);

the detection assembly is arranged at the lower side of the fixing column (203), the detection assembly is used for detecting the water leakage amount of the first sealing table (502) and the sub-joint (8), when water in the detection assembly reaches a set value, the first sealing table (502) slides towards the direction close to the auxiliary joint (2), and the rotating column (6) rotates for half a circle to enable the second sealing table (507) to be connected with the sub-joint (8) in a sealing mode.

2. The pipe joint according to claim 1, wherein the main joint (1) is internally and symmetrically fixedly connected with baffle rings (101), two baffle rings (101) are fixedly connected with buffer rings (102), one end, far away from a fixed column (203), of each auxiliary joint (2) is fixedly connected with a sliding ring (201), one end of each sliding ring (201) is hermetically and slidably arranged between the two baffle rings (101), a first electromagnetic ring (103) is fixedly connected to the main joint (1), a second electromagnetic ring (202) matched with the main joint (1) is fixedly connected to each auxiliary joint (2), and the first electromagnetic ring (103) and the second electromagnetic ring (202) are matched with the detection assembly.

3. The pipe joint according to claim 2, wherein a first fixing ring (5) is fixedly connected in the first drainage groove (204), a first connecting ring (501) is fixedly connected on the first fixing ring (5), the first sealing table (502) is hermetically sliding on the first connecting ring (501), a plurality of groups of first springs (503) are fixedly connected between the first connecting ring (501) and the first sealing table (502), a first sliding rod (301) is fixedly connected on the first electromagnetic ring (103), a first sleeve (3) is fixedly connected on the fixing column (203), one end of the first sliding rod (301) is hermetically sliding in the first sleeve (3), one end of the first sliding rod (301) in the first sleeve (3) is fixedly connected with a first piston (302), and a first connecting pipe (504) is arranged between the bottom of the first sleeve (3) and the first sealing table (502).

4. The pipe joint according to claim 2, wherein the detection assembly comprises a water collecting tank (902) matched with the fixing column (203), a U-shaped pipe (903) is fixedly connected to the lower side of the water collecting tank (902), a limiting ring (904) is fixedly connected to the inside of the U-shaped pipe (903), a floating block (905) is arranged on the limiting ring (904), a conductive rod (906) is fixedly connected to the floating block (905), a conductive block (907) matched with the conductive rod (906) is fixedly connected to the U-shaped pipe (903), and a positioning rod matched with the floating block (905) is fixedly connected to the limiting ring (904).

5. A pipe joint according to claim 2, wherein a second fixing ring (505) is fixedly connected in the second water draining groove (205), a second connecting ring (506) is fixedly connected on the second fixing ring (505), the second sealing table (507) slides on the second connecting ring (506) in a sealing manner, and a plurality of groups of second springs (508) are fixedly connected between the second sealing table (507) and the second connecting ring (506).

6. The pipe joint according to claim 5, wherein a second sleeve (4) is fixedly connected to the first electromagnetic ring (103), a second sliding rod (401) is sealed and slid in the second sleeve (4), one end, away from the second sleeve (4), of the second sliding rod (401) is fixedly connected with the fixed column (203), one end, in the second sleeve (4), of the second sliding rod (401) is fixedly connected with a second piston (402), and a second connecting pipe (509) is arranged between one end, close to the fixed column (203), of the second sleeve (4) and the second sealing table (507).

7. A pipe joint according to claim 2, characterized in that the fixing column (203) is fixedly connected with a supporting ring (601), the supporting ring (601) is connected with the rotating column (6) through a torsion spring, the rotating column (6) is symmetrically and fixedly connected with a limiting rod (604), the torsion spring on the supporting ring (601) is connected with a first rotating shaft (605), the first rotating shaft (605) is symmetrically and fixedly provided with a connecting plate (606), two connecting plates (606) are matched with the limiting rod (604), and the first electromagnetic ring (103) is provided with a driving assembly for driving the connecting plate (606) to rotate along the first rotating shaft (605).

8. A pipe joint according to claim 7, characterized in that a second shaft (607) is rotatably connected between two of said connection plates (606), said drive assembly comprising a pull rope (608) fixed between the second shaft (607) and the first electromagnetic ring (103).

9. A pipe joint according to claim 1, characterized in that a first sliding cavity (7) is arranged in the rotating column (6), a sealing column (701) is sealed and slid in the first sliding cavity (7), and a third spring (702) is fixedly connected between the sealing column (701) and the first sliding cavity (7).

10. A forest fire extinguishing apparatus comprising a pipe joint according to any one of claims 1-9, characterized in that it further comprises a pump body (908), wherein the output end of the pump body (908) is fixedly connected with a water outlet pipe (909), and the water outlet pipe (909) is in flange sealing connection with the main joint (1).

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