阅读说明：本技术 一种消防水带用接头 (Connector for fire hose ) 是由 陈保利 于 2021-07-27 设计创作，主要内容包括：本发明涉及消防设备技术领域,且公开了一种消防水带用接头,包括分接头、连接头和消防水带,所述分接头的内部均匀活动安装有连接板,所述连接板的底部活动连接有密封板,所述密封板与分接头活动连接,所述分接头上且位于连接板左侧固定安装有活塞筒。通过密封板和中心管的设置,使得输水线路中的传输压力达到一定时,推动中心管向左移动,同时推动活塞杆上升,活塞杆通过连接板带动密封板向上移动,连接头所建立的输水通道发生泄漏时,水压骤降,则弹簧推动活塞杆下降,密封板对分接头向连接头的输水通道关闭,避免分接头内部的压力失压,进而确保其他输水通道的压力,保证灭火时,其它水枪的压力,避免一处泄漏不会影响其他输水线。(The invention relates to the technical field of fire fighting equipment and discloses a joint for a fire hose, which comprises a tap, a joint and the fire hose, wherein a connecting plate is uniformly and movably arranged in the tap, the bottom of the connecting plate is movably connected with a sealing plate, the sealing plate is movably connected with the tap, and a piston cylinder is fixedly arranged on the tap and positioned on the left side of the connecting plate. Through the setting of closing plate and center tube, make transmission pressure in the water delivery line reach a timing, promote the center tube and remove left, promote the piston rod to rise simultaneously, the piston rod drives the closing plate rebound through the connecting plate, when the water delivery passageway that the connector was established takes place to leak, the water pressure dip, then the spring promotes the piston rod and descends, the closing plate is closed to the water delivery passageway of joint to the connector, avoid the inside pressure decompression of tap, and then ensure the pressure of other water delivery passageways, when guaranteeing to put out a fire, the pressure of other squirts, avoid a department to leak and can not influence other water delivery lines.)

1. The utility model provides a joint for fire hose, includes tap (1), connector (9) and fire hose (18), its characterized in that: the improved tap joint comprises a tap joint (1), a connecting plate (2) is uniformly and movably mounted in the tap joint (1), a sealing plate (3) is movably connected to the bottom of the connecting plate (2), the sealing plate (3) is movably connected with the tap joint (1), a piston cylinder (4) is fixedly mounted on the left side of the connecting plate (2) on the tap joint (1), a piston rod (5) is movably sleeved in the piston cylinder (4), a spring (6) is movably sleeved on the piston rod (5), the bottom end of the piston cylinder (4) is positioned below the piston rod (5) and communicated with an inner cavity of the tap joint (1), an arc-shaped clamping block (8) is fixedly mounted on the outer side of the left end of the tap joint (1), a rotary clamping head (10) is movably sleeved at the right end of a connector (9), the rotary clamping head (10) is movably sleeved with the left end of the tap joint (1), and the rotary clamping head (10) is movably clamped with the arc-shaped clamping block (8), center tube (11) have been cup jointed in the inside activity of connector (9), fixed cover has been cup jointed hydraulic tank (12) on connector (9), annular depression bar (13) has been cup jointed in hydraulic tank (12) activity, the inside of hydraulic tank (12) is filled with hydraulic oil, clearance intercommunication between hydraulic tank (12) and tap (1) and center tube (11), the even fixedly connected with splint (15) of left end of connector (9), fixed mounting has briquetting (16) on splint (15), the draw-in groove has been seted up on connector (9), briquetting (16) and draw-in groove swing joint, the thread groove has been seted up in the outside of splint (15), threaded pipe (17) have been cup jointed to splint (15) last screw thread, the left end of connector (9) is cup jointed with the one end activity of fire hose (18).

2. The joint for a fire hose according to claim 1, wherein: the inside fixed mounting of connector (9) has arc spacing (19), the spacing groove has been seted up on center tube (11), arc spacing (19) and spacing groove activity joint, the right-hand member outside symmetry fixed mounting of center tube (11) has dog II (21), dog I (20) are installed to the left end inner wall symmetry of tap (1).

3. The joint for a fire hose according to claim 1, wherein: the hydraulic oil tank is characterized in that a mechanical sealing device (14) is fixedly mounted on the left side of the connector (9) and located on the hydraulic oil tank (12), and the mechanical sealing device (14) is movably sleeved with the left end of the central pipe (11).

4. The joint for a fire hose according to claim 1, wherein: the diameter of the outer wall of the right end of the central tube (11) is smaller than the diameter of the inner cavity of the left end of the tap (1).

Technical Field

The invention relates to the technical field of fire fighting equipment, in particular to a joint for a fire hose.

Background

Fire control product belongs to public safety class product, concern the safety of people's production life, wherein fire hose and interface application range are wide, the quantity is big, its quality is good or bad and directly influences public fire control safety, fire hose usually refers to the fixed length flexible coilable circular or flat tubular body that tubular fabric layer and lining (or overburden) that weave by the longitude and latitude pass through steam vulcanization or gluing agent combination and forms, carry the water source for long distance fire rescue, utilize the interface to connect multistage fire hose, but the interface that uses at present has some deficiencies in the use, as follows:

at present common fire hose has clamp ligature, iron wire ligature with interface connection department's ligature mode, but this kind of ligature mode causes the hosepipe incomplete in interface card circle compaction easily, causes the leakage point more to, when in the use, water pressure can be used in the arbitrary surface in the hosepipe, produces the bulging force at submarine circumferencial direction, promotes the hosepipe and warp along radial direction, in case appear the defect when the ligature, causes water pressure to concentrate and lets out, must appear revealing the condition.

Simultaneously, at the delivery water source in-process, in order to reduce pipeline's laying, the great fire hose of a common diameter carries out remote transport, then utilizes the tap to connect the less fire hose of a plurality of diameters, but in the use, in case there is a fire hose damaged leakage to appear, then can cause the water pressure reduction of tap department, influences the transmission pressure of other fire hoses, leads to squirt spun water pressure not enough, influences the task of putting out a fire.

Disclosure of Invention

The invention provides a joint for a fire hose, which has the advantages of good connecting effect and strong leakage prevention capability and solves the problems in the background technology.

The invention provides the following technical scheme: a joint for a fire hose comprises a tap, a connector and a fire hose, wherein a connecting plate is uniformly and movably arranged in the tap, a sealing plate is movably connected to the bottom of the connecting plate, the sealing plate is movably connected with the tap, a piston cylinder is fixedly arranged on the tap and positioned on the left side of the connecting plate, a piston rod is movably sleeved in the piston cylinder, a spring is movably sleeved on the piston rod, the bottom end of the piston cylinder is positioned below the piston rod and communicated with an inner cavity of the tap, an arc-shaped clamping block is fixedly arranged on the outer side of the left end of the tap, a rotary clamping head is movably sleeved on the right end of the connector and movably sleeved on the left end of the tap, the rotary clamping head is movably clamped with the arc-shaped clamping block, a central pipe is movably sleeved on the inner part of the connector, and a hydraulic oil tank is fixedly sleeved on the connector, the hydraulic pressure fire hose is characterized in that an annular pressure rod is movably sleeved on the hydraulic oil tank, hydraulic oil is filled in the hydraulic oil tank, a gap between the hydraulic oil tank and a tap and a central pipe is communicated, a clamping plate is evenly and fixedly connected to the left end of the connector, a pressing block is fixedly mounted on the clamping plate, a clamping groove is formed in the connector, the pressing block is movably connected with the clamping groove, a thread groove is formed in the outer side of the clamping plate, a threaded pipe is sleeved on the clamping plate in a threaded manner, and the left end of the connector is movably sleeved with one end of a fire hose.

Preferably, the inside fixed mounting of connector has the spacing strip of arc, the spacing groove has been seted up on the center tube, the spacing strip of arc and spacing groove activity joint, the right-hand member outside symmetry fixed mounting of center tube has dog II, dog I is installed to the left end inner wall symmetry of tap.

Preferably, a mechanical sealing device is fixedly mounted on the connecting head and positioned on the left side of the hydraulic oil tank, and the mechanical sealing device is movably sleeved with the left end of the central pipe.

Preferably, the diameter of the outer wall of the right end of the center tube is smaller than the diameter of the inner cavity of the left end of the tap.

The invention has the following beneficial effects:

1. through the setting of closing plate and center tube, make transmission pressure in the water delivery line reach a timing, promote the center tube and remove left, promote the piston rod to rise simultaneously, the piston rod drives the closing plate rebound through the connecting plate, when the water delivery passageway that the connector was established takes place to leak, the water pressure dip, then the spring promotes the piston rod and descends, the closing plate is closed to the water delivery passageway of joint to the connector, avoid the inside pressure decompression of tap, and then ensure the pressure of other water delivery passageways, when guaranteeing to put out a fire, the pressure of other squirts, avoid a department to leak and can not influence other water delivery lines.

2. Through splint, the setting of briquetting and screwed pipe, make the screwed pipe to the splint bunch and lock, utilize the briquetting and draw-in groove to carry out the chucking to the fire hose this moment, the connector presss from both sides tightly to the fire hose with splint, when avoiding fire hose to carry water, because the too big inflation of pressure, the dew point appears, rely on connector and splint two-sided tight, increase the locking effect to the fire hose, and simultaneously, through the setting of arc spacing and spacing groove, rotatory 90 degrees when making the center tube remove, dog I blocks dog II, increase the fastness that connector and tap are connected, and when avoiding the too big impact center tube of water pressure, the center tube is applyed the pressure that receives on the connector, alleviate the pressure that the connector received, further improve the steadiness that connector and tap are connected, avoid the disconnection of both in use.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic top view of the structure of the present invention;

FIG. 3 is a schematic view of the installation of the structural joint and the clamping plate of the present invention;

FIG. 4 is a schematic view of the installation of the central tube and the arc-shaped spacing strips in the structure of the present invention;

FIG. 5 is a schematic view of the installation of the stop block I and the stop block II according to the structure of the present invention.

In the figure: 1. a tap; 2. a connecting plate; 3. a sealing plate; 4. a piston cylinder; 5. a piston rod; 6. a spring; 8. an arc-shaped fixture block; 9. a connector; 10. rotating the chuck; 11. a central tube; 12. a hydraulic oil tank; 13. an annular compression bar; 14. a mechanical seal device; 15. a splint; 16. briquetting; 17. a threaded pipe; 18. a fire hose; 19. an arc-shaped limiting strip; 20. a stop block I; 21. and a stop block II.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a joint for a fire hose comprises a tap 1, a joint 9 and a fire hose 18, wherein a connecting plate 2 is uniformly and movably mounted inside the tap 1, a sealing plate 3 is movably connected to the bottom of the connecting plate 2, the sealing plate 3 is movably connected to the tap 1, a piston cylinder 4 is fixedly mounted on the tap 1 and positioned on the left side of the connecting plate 2, a piston rod 5 is movably sleeved inside the piston cylinder 4, a spring 6 is movably sleeved on the piston rod 5, the bottom end of the piston cylinder 4 is positioned below the piston rod 5 and communicated with an inner cavity of the tap 1, an arc-shaped fixture block 8 is fixedly mounted on the outer side of the left end of the tap 1, a rotary chuck 10 is movably sleeved at the right end of the joint 9, the rotary chuck 10 is movably sleeved at the left end of the tap 1, the rotary chuck 10 is movably clamped with the arc-shaped fixture block 8, a central tube 11 is movably sleeved inside the joint 9, a hydraulic oil tank 12 is fixedly sleeved on the connector 9, an annular pressure rod 13 is movably sleeved on the hydraulic oil tank 12, hydraulic oil is filled in the hydraulic oil tank 12, the hydraulic oil tank 12 is communicated with a gap between the tap 1 and the central pipe 11, the connector 9 is connected with the tap 1 by utilizing the clamping of the rotary clamping head 10 and the arc-shaped clamping block 8, then the annular pressure rod 13 is pressed, so that the hydraulic oil pushes the central pipe 11 to move rightwards to push the sealing plate 3 to rotate the sealing plate 3, a water outlet channel is opened, when water is conveyed to the tap 1 for branching conveying, the water is conveyed outwards through the central pipe 11 and the connector 9 in sequence, when the conveying pressure reaches a certain pressure, the central pipe 11 is pushed to move leftwards, the piston rod 5 is pushed to ascend, the piston rod 5 drives the sealing plate 3 to move upwards through the connecting plate 2, and when the water conveying channel established by the connector 9 leaks, when the water pressure suddenly drops, the spring 6 pushes the piston rod 5 to descend, so that the water delivery channel from the branch joint 1 to the connector 9 is closed by the sealing plate 3, the pressure in the branch joint 1 is prevented from losing pressure, the pressure of other water delivery channels is further ensured, the pressure of other water guns is ensured when fire is extinguished, and the phenomenon that one part leaks and cannot influence other water delivery lines is avoided; a clamping plate 15 is uniformly and fixedly connected at the left end of the connector 9, a pressing block 16 is fixedly arranged on the clamping plate 15, a clamping groove is arranged on the connector 9, the pressing block 16 is movably connected with the clamping groove, a thread groove is arranged on the outer side of the clamping plate 15, a thread pipe 17 is sleeved on the clamping plate 15 in a threaded manner, the left end of the connector 9 is movably sleeved with one end of a fire hose 18, when the connector 9 is connected with the fire hose 18, the fire hose 18 is sleeved with the connector 9, then the threaded pipe 17 is rotated, so that the threaded pipe 17 bundles and locks the clamping plate 15, at the moment, the pressing block 16 and the clamping groove are used for clamping the joint 9 of the waterproof compensation belt 18 and clamping the waterproof compensation belt 18 by the clamping plate 15, when the fire hose 18 is prevented from delivering water, because the pressure is too large and expands, a leakage point appears, the expansion of the expansion point is limited by clamping the connector 9 and the clamping plate 15 on two sides, and the locking effect of the waterproof band 18 is increased; an arc-shaped limiting strip 19 is fixedly installed inside the connector 9, a limiting groove is formed in the central tube 11, the arc-shaped limiting strip 19 is movably clamped with the limiting groove, a stop block II 21 is symmetrically and fixedly installed on the outer side of the right end of the central tube 11, a stop block I20 is symmetrically installed on the inner wall of the left end of the tap 1, when the central tube 11 is pushed leftwards due to water pressure inside the tap 1, the central tube 11 rotates 90 degrees when moving due to the fact that the water pressure inside the tap 1 is applied to the arc-shaped limiting strip 19 and the limiting groove, the stop block I20 blocks the stop block II 21, the firmness of connection between the connector 9 and the tap 1 is improved, and when the central tube 11 is prevented from being impacted by overlarge water pressure, the central tube 11 applies the pressure applied to the connector 9, the pressure applied to the connector 9 is reduced, the stability of connection between the connector 9 and the tap 1 is further improved, and disconnection between the connector 9 and the tap 1 is avoided when the two are in use; a mechanical sealing device 14 is fixedly arranged on the connector 9 and positioned on the left side of the hydraulic oil tank 12, and the mechanical sealing device 14 is movably sleeved with the left end of the central tube 11 to prevent hydraulic oil from leaking; the diameter of the outer wall of the right end of the central tube 11 is smaller than the diameter of the inner cavity of the left end of the tap 1, so that water can enter between the tap 1 and the central tube 11 to impact the piston rod 5, and the simultaneity of the movement of the central tube 11 and the piston rod 5 is ensured.

The working principle is that when the connector 9 is connected with the fire hose 18, the fire hose 18 is sleeved with the connector 9, then the threaded pipe 17 is rotated, the threaded pipe 17 bundles and locks the clamping plate 15, at the moment, the pressing block 16 and the clamping groove are used for clamping the connector 9 and the clamping plate 15 to clamp the fire hose 18, then the annular pressing rod 13 is pressed, hydraulic oil in the hydraulic oil tank 12 enters between the central pipe 11 and the connector 9, the central pipe 11 is pushed to move rightwards, the connector 9 is sleeved with the tap joint 1, the arc-shaped clamping block 8 is clamped by the rotary clamping head 10, at the moment, the central pipe 11 enters the central pipe 11 and pushes the sealing plate 3 to rotate, then, a water source is conveyed into the tap joint 1, the water central pipe is conveyed outwards through the connector 11 and the connector 9 in sequence, when the conveying pressure reaches a certain value, the central pipe 11 is pushed to move leftwards, promote simultaneously that piston rod 5 rises, piston rod 5 drives closing plate 3 through connecting plate 2 and upwards removes, when the water delivery passageway that connector 9 was established takes place to leak, the water pressure suddenly drops, then spring 6 promotes piston rod 5 and descends, make closing plate 3 close the water delivery passageway of butt joint 1 to connector 9, ensure other transfer circuit's water pressure, when the inside water pressure of tap 1, when promoting center tube 11 left, owing to receive the setting of arc spacing strip 19 and spacing groove, make center tube 11 rotatory 90 degrees when removing, make dog I20 contact and block it to dog II 21.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.