CN116734066A - Fire control connects - Google Patents
Fire control connects Download PDFInfo
- Publication number
- CN116734066A CN116734066A CN202311021693.8A CN202311021693A CN116734066A CN 116734066 A CN116734066 A CN 116734066A CN 202311021693 A CN202311021693 A CN 202311021693A CN 116734066 A CN116734066 A CN 116734066A
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- Prior art keywords
- joint
- fire
- movable
- state
- fighting
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 230000002093 peripheral effect Effects 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
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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
- F16L17/00—Joints with packing adapted to sealing by fluid pressure
- F16L17/02—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
-
- 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
- F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
-
- 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
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/009—Combination of a quick-acting type coupling and a conventional one
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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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/086—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of latching members pushed radially by spring-like elements
-
- 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
- F16L37/00—Couplings of the quick-acting type
- F16L37/62—Couplings of the quick-acting type pneumatically or hydraulically actuated
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The application relates to the technical field of fire-fighting equipment, in particular to a fire-fighting joint. The fire-fighting joint comprises a fixed joint and a movable joint which are movably connected together and are used for communicating two different fire-fighting pipes; the fire-fighting joint is in a water-through state and a standby state, the fixed joint comprises a first joint and a second joint which synchronously rotate, the movable joint comprises a third joint and a fourth joint which synchronously rotate, the second joint is movably connected with the third joint, and the first joint is movably connected with the fourth joint; when the movable joint is in a water-through state, the movable joint is reversed relative to the fixed joint, so that the first joint and the fourth joint are close to each other. When the water is supplied, if the movable joint is reversely rotated due to misoperation, the first joint and the fourth joint can be mutually close to each other so that the connection of the first joint and the fourth joint is tighter, thereby being difficult to loosen the connection due to misoperation when water is supplied and being difficult to break due to misoperation.
Description
Technical Field
The application relates to the technical field of fire-fighting equipment, in particular to a fire-fighting joint.
Background
The fire control joint is mainly used for being connected between water pipe and squirt etc., and chinese patent literature of application publication No. CN110360398B discloses a fire control interface, and this fire control interface includes the interface body, and the interface body includes fixed mouth and movable interface, when using, can effectively reduce the phenomenon that takes place to leak when fixed interface and movable interface connect.
However, the fire-fighting interface uses a threaded joint, and in the actual use process, the connection between the joints is easily disconnected due to misoperation, so that the use is inconvenient.
Disclosure of Invention
Accordingly, it is necessary to provide a fire-fighting joint against the problem that the conventional fire-fighting joint is easily broken by an erroneous operation when water is supplied.
The above purpose is achieved by the following technical scheme:
the fire-fighting joint comprises a fixed joint and a movable joint which are movably connected together and are used for communicating two different fire-fighting pipes;
the fire-fighting joint is in a water-through state and a standby state, the fixed joint comprises a first joint and a second joint which synchronously rotate, the movable joint comprises a third joint and a fourth joint which synchronously rotate, the second joint is movably connected with the third joint, the first joint is used for connecting one fire-fighting pipe, the fourth joint is used for connecting the other fire-fighting pipe, and the first joint is movably connected with the fourth joint;
when the movable joint is in a water-through state, the movable joint is reversed relative to the fixed joint, so that the first joint and the fourth joint are close to each other; when the movable joint is in a standby state, the movable joint is reversed relative to the fixed joint, so that the first joint and the fourth joint can be mutually far away.
Further, the fire-fighting joint further comprises an adjusting structure, wherein the adjusting structure comprises a first thread group and a second thread group, and the rotation direction of the second thread group is opposite to that of the first thread group;
the second joint and the third joint are in threaded connection through a first thread group, when the movable joint rotates forwards, the first thread group enables the third joint to be close to the second joint, and when the movable joint rotates backwards, the first thread group enables the third joint to be far away from the second joint;
when the water is in a water-through state, the first joint and the fourth joint are in threaded connection through the second thread group, the movable joint is reversed, and the second thread group enables the first joint to be close to the fourth joint.
Further, the fixed joint further comprises a movable assembly, the movable assembly is used for detecting the state of water flow, and the fire-fighting joint is switched between the water-flowing state and the standby state according to the detection result of the movable assembly.
Further, the second thread group comprises a second internal thread and a second external thread, the second external thread is arranged on the fourth joint, the movable assembly comprises a thread block, the second internal thread is arranged on the thread block, and when the fire-fighting joint is in a water-through state, the thread block enables the first joint and the fourth joint to be in threaded connection through the second thread group.
Further, the movable assembly further comprises a reset spring and a floating plate, one end of the floating plate is hinged to the inner wall of the first joint, and the other end of the floating plate is fixedly connected with the threaded block;
when the reset spring is in an initial state, the fire-fighting joint is in a standby state;
when the return spring is in a stretched state, the fire-fighting joint has a tendency to be in a standby state;
when the water flow impacts the floating plate and the floating plate drives the threaded block to swing, the fire-fighting joint is in a water-through state, and the reset spring is in a stretching state.
Further, the fixed joint is provided with a unidirectional component, the unidirectional component has a locking state and an unlocking state, and when the unidirectional component is in the locking state, the unidirectional component limits the first joint to slide along a direction opposite to a first direction, and the first direction is the direction that the fixed joint points to the movable joint.
Further, the unidirectional component comprises a first ratchet plate, a second ratchet and a pushing spring, the first ratchet plate is provided with a first ratchet, the first ratchet plate is arranged on the first connector in a floating mode through the pushing spring, the second ratchet is arranged on the second connector, when the unidirectional component is in a locking state, the first ratchet is clamped with the second ratchet, and the unidirectional component limits the first connector to move along a direction opposite to the first direction.
Further, the movable joint further comprises a fifth joint and a fixing ring, the fixing ring is arranged on the fifth joint, the cross section of the inner peripheral wall surface of the fixing ring is gradually increased along the first direction, the outer peripheral wall surface of the fourth joint also has a part with the cross section gradually increased along the first direction, and the inner peripheral wall surface of the fixing ring is abutted on the outer peripheral wall surface of the part with the cross section gradually increased along the fifth joint.
The beneficial effects of the application are as follows:
the application provides a fire-fighting joint, which comprises a fixed joint and a movable joint, wherein the fixed joint comprises a first joint and a second joint which synchronously rotate, the movable joint comprises a third joint and a fourth joint which synchronously rotate, the fire-fighting joint has a water-through state and a standby state, and when the fire-fighting joint is in the water-through state, if the movable joint is reversely rotated due to misoperation, the first joint and the fourth joint can be mutually close to each other so as to enable the connection of the first joint and the fourth joint to be more compact, thereby being difficult to loose connection due to misoperation when water is supplied, being difficult to break due to misoperation, and being more convenient to use.
Drawings
FIG. 1 is a schematic view of an overall structure of a fire joint according to an embodiment of the present application;
FIG. 2 is a cross-sectional view of the fire fitting of FIG. 1;
FIG. 3 is an enlarged view of a portion at A in FIG. 2;
FIG. 4 is a partial enlarged view at B in FIG. 2;
FIG. 5 is a partial enlarged view at C in FIG. 2;
FIG. 6 is a schematic view of the movable assembly of the fire fitting of FIG. 1;
fig. 7 is a schematic structural view of the third joint in fig. 1.
Reference numerals illustrate:
110. a first joint; 111. a first bump; 112. a mounting groove; 113. a first arc-shaped groove; 114. a second arc-shaped groove; 115. a receiving groove;
120. a second joint;
130. a third joint; 131. a first helical bump; 132. a second helical bump;
140. a fourth joint;
150. a fifth joint; 151. a vent hole;
160. a seal ring;
170. a fixing ring;
210. a first ratchet plate; 211. a second ratchet; 213. a pushing spring; 215. a hemispherical segment;
310. a floating plate; 320. a screw block; 321. a second bump; 322. a third bump; 330. and a return spring.
Detailed Description
The present application will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present application. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
The fire-fighting joint provided by the embodiment of the present application is described below with reference to fig. 1 to 7.
The embodiment of the application provides a fire-fighting joint, which has a water-through state and a standby state, and comprises a fixed joint and a movable joint which are movably connected together and are used for communicating two fire-fighting pipes, wherein the two fire-fighting pipes are respectively named as a first fire-fighting pipe and a second fire-fighting pipe, the fixed joint comprises a first joint 110 and a second joint 120 which synchronously rotate, the movable joint comprises a third joint 130 and a fourth joint 140 which synchronously rotate, the second joint 120 is movably connected with the third joint 130, the first joint 110 is used for connecting the first fire-fighting pipe, the fourth joint 140 is used for connecting the second fire-fighting pipe, and the first joint 110 is movably connected with the fourth joint 140. When the fire hydrant is in use, one end of the first fire hydrant is fixedly connected with the first connector 110, the other end of the first fire hydrant is fixedly connected with the fire hydrant, the fourth connector 140 is fixedly connected with the second fire hydrant, after the fixed connector is connected with the movable connector, the valve of the fire hydrant is opened, water flows through the fire hydrant connector of the fire hydrant, the fire hydrant of the fire hydrant is in a water passing state, the valve of the fire hydrant is closed, and the fire hydrant of the fire hydrant is restored to a standby state.
When the fire-fighting joint is in a water-through state, the first joint 110 and the fourth joint 140 are close to each other when the movable joint is rotated reversely by misoperation, so that the first joint 110 and the fourth joint 140 are connected more tightly, water leakage is not easy to occur, looseness is not easy to occur due to misoperation, and when the fire-fighting joint is in a standby state, the movable joint can be separated from the fixed joint by reversing the movable joint, so that the movable joint is detached from the fixed joint.
In one embodiment, the fire fitting of the present application further comprises an adjustment structure comprising a first set of threads and a second set of threads of opposite threads, the first set of threads comprising a first internal thread and a first external thread, the second set of threads comprising a second internal thread and a second external thread, the second fitting 120 and the third fitting 130 being threadably coupled by the first set of threads.
In one embodiment, the first joint 110 and the second joint 120 are rotated synchronously by the cooperation of the key and the key groove, and the length of the key groove is longer than that of the key, so that the two can slide relatively in the axial direction. The movable joint further comprises a fifth joint 150, wherein the fourth joint 140 and the fifth joint 150 synchronously rotate and synchronously move, relative sliding cannot occur, the second joint 120 and the third joint 130 are detachably connected, specifically, a first spiral convex block 131 and a second spiral convex block 132 are arranged on the inner wall surface of the third joint 130, the first spiral convex block 131 and the second spiral convex block 132 are positioned on the same spiral track, a first internal thread is formed by the first spiral convex block 131 and the second spiral convex block 132, a third spiral convex block and a fourth spiral convex block are arranged on the outer wall surface of the second joint 120, the third spiral convex block and the fourth spiral convex block are also positioned on the same spiral track, the first external thread is formed by the third spiral convex block and the fourth spiral convex block, and the first internal thread and the first external thread are in spiral fit, so that the detachable connection of the second joint 120 and the third joint 130 can be realized; the third joint 130 and the fifth joint 150 also achieve synchronous rotation by the key and the key groove being matched, and the key groove and the key have the same length, so that the two cannot slide relatively in the axial direction. In other embodiments, the first internal thread and the first external thread are each a continuous thread structure.
In one embodiment, the fixed joint further comprises a movable component, wherein the movable component is used for detecting the state of water flow, and the fire-fighting joint is switched between a water-through state and a standby state according to the detection result.
Specifically, the movable assembly is located inside the fixed joint, the movable assembly includes a first bump 111, a thread block 320, a return spring 330 and a floating plate 310, the first bump 111 is fixed on the inner wall surface of the first joint 110, the floating plate 310 is arc-shaped, a first end of the floating plate 310 is hinged with the first bump 111, a second end of the floating plate 310 is fixedly connected with the thread block 320, an installation groove 112 is formed in the inner wall of the first joint 110, the return spring 330 and the thread block 320 are installed in the installation groove 112, the return spring 330 is a tension spring, one end of the return spring 330 is fixed at the bottom of the installation groove 112, and the other end of the return spring 330 is fixedly connected with the thread block 320. The screw block 320 is an arc block, the second internal thread is arranged on the inner wall surface of the arc block, the second external thread is arranged on the outer circumferential surface of the fourth joint 140, the second protruding block 321 and the third protruding block 322 are arranged on the outer circumferential surface of the screw block 320, the bottom of the mounting groove 112 is also provided with a sinking groove, and the inner wall surface of the sinking groove is provided with a first arc groove 113 and a second arc groove 114 which are arc-shaped.
When the fire-fighting joint is in a water-passing state, the floating plate 310 is impacted by water flow to swing, the floating plate 310 drives the threaded block 320 to swing, the reset spring 330 is stretched, and the second convex block 321 and the third convex block 322 slide in the first arc-shaped groove 113 and the second arc-shaped groove 114 respectively, so that the second internal thread and the second external thread are meshed, at the moment, the second internal thread and the second external thread can be matched with each other, but at the moment, errors caused by tooth gaps can exist, and therefore, the fourth joint 140 is pushed leftwards, and the second internal thread and the second external thread are completely and tightly matched.
In one embodiment, the fixed joint is provided with a unidirectional component, and the unidirectional component has a locked state and an unlocked state, and in the locked state, the unidirectional component limits the first joint 110 to slide in a direction opposite to a first direction, wherein the first direction is a direction in which the fixed joint points to the movable joint.
Specifically, the unidirectional component includes a first ratchet plate 210, a second ratchet 211 and two pushing springs 213, the pushing springs 213 are provided with a holding groove 115 on the outer peripheral surface of the first joint 110, the bottom of the holding groove 115 is provided with two sinking grooves, the two pushing springs 213 are respectively arranged in the two sinking grooves, the first ratchet plate 210 is provided with a first ratchet, the bottom surface of the first ratchet plate 210 is provided with two pushing blocks for being in pushing fit with the pushing springs 213, the first ratchet plate 210 can float along the depth direction of the holding groove 115 after being installed in the holding groove 115, the second ratchet 211 is arranged on the inner wall surface of the second joint 120, the end part of the first ratchet plate 210 is provided with a hemispherical section 215, and the hemispherical section 215 is hemispherical. In the initial state, the one-way assembly is in the locked state, at which time the first ratchet plate 210 is pushed up by the push spring 213, and the first ratchet and the second ratchet 211 are in one-way stop engagement to restrict the first joint 110 from sliding in a direction opposite to the first direction. When the hemispherical segment 215 is pressed, the first ratchet plate 210 can be sunk into the accommodating groove 115, so that the limit of the second ratchet 211 on the first ratchet plate 210 is released, and the unidirectional assembly is in an unlocked state, and the first joint 110 can slide freely.
In one embodiment, the movable joint further includes a fixing ring 170, the fixing ring 170 is made of a rubber material and has elasticity, the cross-sectional dimension of the inner peripheral wall surface of the fixing ring 170 is gradually increased along the first direction, an annular sinking groove is provided on the outer wall surface of the fifth joint 150, a venting hole 151 penetrating through the inner wall of the fifth joint 150 is provided on the fifth joint 150, the radial cross-sectional dimension of the annular sinking groove is also gradually increased along the first direction, the annular sinking groove is used for accommodating the fixing ring 170, the cross-sectional dimension of the outer peripheral surface of the fixing ring 170 is equal to the cross-sectional dimension of the inner wall surface of the annular sinking groove, but the thickness of the fixing ring 170 is greater than the groove depth of the annular sinking groove so that the fixing ring 170 can protrude from the annular sinking groove, the cross-sectional dimension of the inner wall surface of the fixing ring 170 is equal to the outer diameter dimension of the fourth joint 140 so that the fourth joint 140 can pass through the fixing ring 170, an annular groove is further provided on the inner wall surface of the fixing ring 170, and the inner wall surface of the annular groove and the outer peripheral surface of the fourth joint 140 forms an annular sealing cavity.
The cross-sectional dimension of the outer circumferential surface of the fourth joint 140 for contact with the fixing ring 170 is also gradually increased in the first direction, and when the fourth joint 140 moves in a direction opposite to the first direction with respect to the fixing ring 170, the fixing ring 170 is compressed, and air in the annular seal chamber is discharged, so that the fixing ring 170 is in close contact with both the fourth joint 140 and the fifth joint 150 under the action of the atmospheric pressure and the pressures of the fourth joint 140 and the fifth joint 150, and when the fifth joint 150 rotates, the fourth joint 140 can also be rotated synchronously by the frictional force between the fixing ring 170 and both the fourth joint 140 and the fifth joint 150. The fixing ring 170 is a disposable article, and when the fourth joint 140 and the fifth joint 150 need to be separated, the fixing ring 170 is punctured by the vent hole 151 to break the annular sealing cavity and communicate with the atmosphere, thereby enabling the fourth joint 140 and the fifth joint 150 to be conveniently separated.
In addition, in order to improve the sealing performance, an annular step is provided on the inner wall surface of the first joint 110, and a seal ring 160 is provided on the annular step, and the end surface of the fifth joint 150 abuts against the seal ring 160 when mounted.
The use process of the fire-fighting joint is as follows:
when the fire-fighting hose is used, one end of the first fire-fighting hose is fixedly connected with the first connector 110, the other end of the first fire-fighting hose is fixedly connected with the fire hydrant, the fourth connector 140 is fixedly connected with the second fire-fighting hose, the second connector 120 and the third connector 130 are connected through the first thread group, the end face of the fifth connector 150 is tightly propped against the sealing ring 160 in the connecting process, the fixing ring 170 is tightly attached to the inner wall face of the fifth connector 150 and the outer peripheral face of the fourth connector 140, the first ratchet and the second ratchet 211 are in one-way blocking fit, and the one-way assembly is in a locking state.
The valve of the fire hydrant is opened, and water flows through the fire-fighting joint, so that the fire-fighting joint is in a water-through state. Under the impact of water flow, the floating plate 310 swings and drives the threaded block 320 to swing, the return spring 330 is stretched, and then the second protrusion 321 and the third protrusion 322 slide in the first arc-shaped groove 113 and the second arc-shaped groove 114 respectively, so that the second internal thread and the second external thread are meshed, at this time, although the second internal thread and the second external thread can be mutually matched, errors caused by tooth gaps may exist, and therefore the fourth joint 140 is forced to the left, on the one hand, the second internal thread and the second external thread are completely and tightly matched, on the other hand, the outer peripheral surface of the fourth joint 140 can press the fixing ring 170 when moving to the left, the fixing ring 170 can be compressed, and air in the annular sealing cavity is discharged, so that under the action of atmospheric pressure and the pressure of the fourth joint 140 and the fifth joint 150, the fixing ring 170 is tightly contacted with the fourth joint 140 and the fifth joint 150, and the fifth joint 150 can drive the fourth joint 140 to rotate.
In the water-through state, when the second joint 120 is pinched and the third joint 130 is reversed due to the misoperation, the third joint 130 moves rightward, the moving distance is determined by the pitch of the first thread group, for example, the third joint 130 is set to reverse 45 degrees and then moves rightward by 4mm, that is, the second joint 120 and the third joint 130 are separated from each other by 4mm, and the third joint 130 drives the fifth joint 150 and the fourth joint 140 to synchronously rotate 45 degrees and synchronously move rightward by 4mm. Because the first joint 110 and the fourth joint 140 are connected through the second thread group, the second thread group and the first thread group are opposite in rotation direction, so that the fourth joint 140 drives the first joint 110 to move rightwards by 4mm, meanwhile, the first joint 110 and the fourth joint 140 are close to each other by a set distance which is determined by the thread pitch of the second thread group, the set distance is assumed to be 2mm, the first joint 110 is actually moved rightwards by 6mm, the first ratchet plate 210 is also moved rightwards by 6mm, a plurality of first ratchets pass over the second ratchets 211, and the fourth joint 140 stops after being moved rightwards by 4mm, so that the first joint 110 is close to 2mm rightwards relative to the fourth joint 140, the sealing ring 160 is compressed by 2mm, so that the sealing between the first joint 110 and the fourth joint 140 is tighter, looseness and water leakage between the fixed joint and the movable joint are not easy to be caused by misoperation, the second ratchet plate 210 is more convenient to use, and meanwhile, the second ratchet plate 211 can carry out unidirectional limiting on the first ratchet plate 210, and the reliability of the connection is guaranteed leftwards.
When the water supply is completed, the floating plate 310 and the screw block 320 are reset by the tension of the return spring 330, the fire-fighting joint is in a standby state, and the second internal screw thread and the second external screw thread are separated. When the disassembly is needed, the third joint 130 is reversed to separate the third joint 130 from the second joint 120, and the fourth joint 140 and the fifth joint 150 are synchronously far away from the second joint 120 under the driving of the third joint 130, so that the separation of the movable joint and the fixed joint is realized.
To further separate the fifth joint 150 from the fourth joint 140, the fixing ring 170 is pierced from the vent hole 151 to break the annular seal chamber and to communicate with the atmosphere, thereby making it possible to easily separate the fourth joint 140 from the fifth joint 150. The first connector 110 needs to be reset relative to the second connector 120 to facilitate the next use, specifically, the hemispherical section 215 on the first ratchet plate 210 is pressed, so that the first ratchet plate 210 is sunk into the accommodating groove 115, and the limit of the second ratchet 211 on the first ratchet plate 210 is released, the unidirectional component is in an unlocked state, at this time, the first connector 110 can freely slide, and then the first connector 110 is pulled leftwards to be in an initial state.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (8)
1. The fire-fighting joint is characterized by comprising a fixed joint and a movable joint which are movably connected together and are used for communicating two different fire-fighting pipes;
the fire-fighting joint is in a water-through state and a standby state, the fixed joint comprises a first joint and a second joint which synchronously rotate, the movable joint comprises a third joint and a fourth joint which synchronously rotate, the second joint is movably connected with the third joint, the first joint is used for connecting one fire-fighting pipe, the fourth joint is used for connecting the other fire-fighting pipe, and the first joint is movably connected with the fourth joint;
when the movable joint is in a water-through state, the movable joint is reversed relative to the fixed joint, so that the first joint and the fourth joint are close to each other; when the movable joint is in a standby state, the movable joint is reversed relative to the fixed joint, so that the first joint and the fourth joint can be mutually far away.
2. The fire fitting of claim 1 further comprising an adjustment structure comprising a first set of threads and a second set of threads, the second set of threads having a reverse direction of rotation to the first set of threads;
the second joint and the third joint are in threaded connection through a first thread group, when the movable joint rotates forwards, the first thread group enables the third joint to be close to the second joint, and when the movable joint rotates backwards, the first thread group enables the third joint to be far away from the second joint;
when the water is in a water-through state, the first joint and the fourth joint are in threaded connection through the second thread group, the movable joint is reversed, and the second thread group enables the first joint to be close to the fourth joint.
3. The fire fitting of claim 2 wherein the fixed fitting further comprises a movable assembly for detecting a state of the water flow, the fire fitting being switched between a water-on state and a standby state based on the detection of the movable assembly.
4. A fire fitting as claimed in claim 3 wherein the second thread group comprises a second internal thread and a second external thread, the second external thread being provided on the fourth fitting, the movable assembly comprising a threaded block, the second internal thread being provided on the threaded block, the threaded block threadably connecting the first fitting to the fourth fitting through the second thread group when the fire fitting is in a water passing condition.
5. The fire protection joint according to claim 4, wherein the movable assembly further comprises a return spring and a floating plate, one end of the floating plate is hinged on the inner wall of the first joint, and the other end of the floating plate is fixedly connected with the threaded block;
when the reset spring is in an initial state, the fire-fighting joint is in a standby state;
when the return spring is in a stretched state, the fire-fighting joint has a tendency to be in a standby state;
when the water flow impacts the floating plate and the floating plate drives the threaded block to swing, the fire-fighting joint is in a water-through state, and the reset spring is in a stretching state.
6. The fire protection joint according to any one of claims 1-5, wherein the fixed joint is provided with a one-way assembly, the one-way assembly having a locked state and an unlocked state, the one-way assembly limiting sliding movement of the first joint in a direction opposite to the first direction in which the fixed joint points in the direction of the movable joint in the locked state.
7. The fire protection joint according to claim 6, wherein the one-way assembly comprises a first ratchet plate, a second ratchet and a pushing spring, the first ratchet plate is provided with a first ratchet, the first ratchet plate is floatingly arranged on the first joint through the pushing spring, the second ratchet is arranged on the second joint, when the one-way assembly is in a locked state, the first ratchet is clamped with the second ratchet, and the one-way assembly limits the first joint to move in a direction opposite to the first direction.
8. The fire protection joint according to claim 6, wherein the movable joint further comprises a fifth joint and a fixing ring, the fixing ring is provided on the fifth joint, the cross-sectional dimension of the inner peripheral wall surface of the fixing ring gradually increases in the first direction, the outer peripheral wall surface of the fourth joint also has a portion of which the cross-sectional dimension gradually increases in the first direction, and the inner peripheral wall surface of the fixing ring abuts on the outer peripheral wall surface of the portion of which the cross-sectional dimension gradually increases in the fifth joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311021693.8A CN116734066B (en) | 2023-08-15 | 2023-08-15 | Fire control connects |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311021693.8A CN116734066B (en) | 2023-08-15 | 2023-08-15 | Fire control connects |
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| CN116734066A true CN116734066A (en) | 2023-09-12 |
| CN116734066B CN116734066B (en) | 2023-12-19 |
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| CN202311021693.8A Active CN116734066B (en) | 2023-08-15 | 2023-08-15 | Fire control connects |
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|---|---|
| CN116734066B (en) | 2023-12-19 |
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