CN110260071B - High-precision mechanical casting - Google Patents
High-precision mechanical casting Download PDFInfo
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- CN110260071B CN110260071B CN201910567717.7A CN201910567717A CN110260071B CN 110260071 B CN110260071 B CN 110260071B CN 201910567717 A CN201910567717 A CN 201910567717A CN 110260071 B CN110260071 B CN 110260071B
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- connecting pipe
- water pipe
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- 238000005266 casting Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 157
- 238000007789 sealing Methods 0.000 claims abstract description 79
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 239000011148 porous material Substances 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims 1
- 235000011613 Pinus brutia Nutrition 0.000 claims 1
- 241000018646 Pinus brutia Species 0.000 claims 1
- 230000035939 shock Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/02—Influencing flow of fluids in pipes or conduits
- F15D1/025—Influencing flow of fluids in pipes or conduits by means of orifice or throttle elements
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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
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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
- F16L25/00—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00
- F16L25/06—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00 comprising radial locking means
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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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/027—Throttle passages
- F16L55/02709—Throttle passages in the form of perforated plates
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Pipe Accessories (AREA)
Abstract
The invention belongs to the technical field of castings, and particularly relates to a high-precision mechanical casting which comprises a water pipe, a connecting pipe, a cylinder barrel, a piston rod, a baffle plate, a sliding hole, a sliding block, an O-shaped sealing ring and a clamping groove; the periphery of the water pipe at the joint of the adjacent water pipes is sleeved with a connecting pipe, and a piston rod is connected in a cylinder barrel on the inner wall of the middle part of the connecting pipe in a sliding manner; a baffle plate is arranged at one end of the piston rod, which is far away from the cylinder barrel; two ends of the inner wall of the connecting pipe, which are far away from the cylinder barrel, are symmetrically provided with a group of sliding holes, and sliding blocks are connected in the sliding holes in a sliding manner; a clamping groove matched with the sliding block is formed in the position, corresponding to the sliding hole, of the outer edge of the water pipe; the sliding hole is communicated with a rodless cavity in the cylinder barrel through a pipeline; according to the invention, the baffle and the piston rod are pushed to move by water flow in the water pipe, and the compressed gas generated in the cylinder barrel pushes the sliding block in the sliding hole to be clamped in the clamping groove, so that the connecting pipe and the water pipe are prevented from loosening, and the sealing reliability of the connecting pipe is improved.
Description
Technical Field
The invention belongs to the technical field of castings, and particularly relates to a high-precision mechanical casting.
Background
The fire-fighting pipeline refers to a pipeline material which is used for fire fighting, connecting fire-fighting equipment and equipment, and conveying water, gas or other media for fire fighting. Due to special requirements, the thickness and the material of the fire fighting pipeline have special requirements, and the fire fighting pipeline is sprayed with red oil paint and used for conveying fire fighting water.
Its single structure of connecting piece of traditional pipe connection usefulness can not cushion rivers, causes the impact easily, starts the fire control water pump when the conflagration breaing out, because the sudden start, the output is big, produces the water hammer effect easily in the pipeline. The water hammer effect is an image saying that water flow impacts a pipeline when a feed pump is started and stopped, and a serious water hammer is generated. Because the inner wall of the water pipe is smooth, water can freely flow. When the open valve is suddenly closed or the water pump is stopped, the water flow generates a pressure on the valve and the pipe wall, mainly the valve or the pump. Because the pipe wall is smooth, the water power of the subsequent water flow quickly reaches the maximum under the action of inertia, and a destructive effect is generated, namely a water hammer effect in hydraulics, namely a positive water hammer. Conversely, a closed valve, when suddenly opened or the feed pump is started, also produces a water hammer, called a negative water hammer, but not as large as the former.
The instantaneous pressure generated by the water hammer can reach dozens of times or even hundreds of times of the normal working pressure in the pipeline. The large-amplitude pressure fluctuation can cause the pipeline system to generate strong vibration or noise, and can damage a valve joint, so that the pipeline connecting pipe is not tightly sealed or loosened, and the great damage effect is realized on the fire-fighting pipeline system.
Disclosure of Invention
The invention provides a high-precision mechanical casting, which aims to make up the defects of the prior art and solve the problems that when a fire fighting water pump is started in case of fire, because of sudden start, the water supply amount is large, the water hammer effect is easy to generate in a pipeline, the instantaneous pressure generated by the water hammer can reach dozens of times or even hundreds of times of the normal working pressure in the pipeline, and the large-amplitude pressure fluctuation can cause strong vibration or noise of a pipeline system and possibly damage a valve joint, so that the pipeline connecting pipe is not tightly sealed or loosened.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a high-precision mechanical casting which comprises a water pipe, a connecting pipe, a cylinder barrel, a piston rod, a baffle plate, a sliding hole, a sliding block, an O-shaped sealing ring and a clamping groove, wherein the connecting pipe is arranged on the water pipe; the periphery of the water pipe at the joint of the adjacent water pipes is sleeved with a connecting pipe, and the inner wall of the middle part of the connecting pipe is provided with a cylinder barrel; a piston rod is connected in the cylinder barrel in a sliding manner, an included angle between the axis of the piston rod and the axis of the water pipe is an acute angle, and the piston rod is deviated to one side of the water pipe in the opposite direction of water flow; a baffle plate is arranged at one end of the piston rod, which is far away from the cylinder barrel; two ends of the inner wall of the connecting pipe, which are far away from the cylinder barrel, are symmetrically provided with a group of sliding holes respectively, and sliding blocks are connected in the sliding holes in a sliding manner; a clamping groove matched with the sliding block is formed in the position, corresponding to the sliding hole, of the outer edge of the water pipe; the sliding hole is communicated with a rodless cavity in the cylinder barrel through a pipeline; one side of the sliding hole, which is close to the middle part of the connecting pipe, is provided with a sealing ring groove, and an O-shaped sealing ring is arranged in the sealing ring groove; through the mutual matching among the water pipe, the connecting pipe, the cylinder barrel, the piston rod, the baffle plate, the sliding hole, the sliding block, the O-shaped sealing ring and the clamping groove, the piston rod pushes out the sliding block to clamp the clamping groove after sliding, the sealing ring is prevented from loosening, and the reliability of connection and sealing of the water pipe is improved; when a fire disaster occurs, the fire pump is started, the water pressure in the water pipe is instantly increased, and when pressure shock waves in water flow are transmitted to the connecting pipe, the baffle plate and the piston rod are pushed to move, the contracted piston rod compresses air in the cylinder barrel to form compressed gas, the compressed gas enters the sliding hole through the pipeline to push the sliding block to move, the moved sliding block is clamped in the clamping groove, the connecting pipe and the water pipe are prevented from loosening, and the connection reliability of the connecting pipe is improved; meanwhile, the sliding block clamped into the clamping groove can prevent the O-shaped sealing ring from turning out of the sealing ring groove under the action of water flow pressure shock waves, and the sealing reliability of the connecting pipe is further improved.
Preferably, the diameter of the sliding block is smaller than that of the clamping groove, so that the sliding block can conveniently and rapidly slide into the clamping groove to clamp the water pipe, and the response speed of the sliding block is further improved; through the clearance fit between draw-in groove and the slider, reduce the resistance when the slider slides, increase the velocity of motion of slider, further improve the response speed of slider, guarantee the slider in time card and go out the draw-in groove, further improve water piping connection and sealed reliability.
Preferably, the clamping groove is in a dovetail shape; one end of the sliding block, which is close to the clamping groove, is provided with a V-shaped opening, and an air bag is fixedly connected in the V-shaped opening; a cavity is formed in one end, far away from the clamping groove, of the sliding block and is communicated with the air bag through a pipeline; an elastic rubber layer in sealing connection is arranged at the opening of the cavity, and a group of pores with the diameter of zero point one millimeter are formed in the rubber layer; through the matching among the clamping groove, the sliding block, the V-shaped opening, the air bag, the cavity, the rubber layer and the pore, the V-shaped opening is opened after the sliding block is clamped in the clamping groove, the clamping effect of the sliding block is further increased, and the reliability of water pipe connection and sealing is further improved; after the compressed gas in the slide hole pushes the sliding block to be clamped into the clamping groove, the compressed gas continues to extrude the rubber layer to enable the rubber layer to be sunken towards one side of the cavity, the stretched rubber layer enables the diameter of the fine hole to be enlarged, the compressed gas enters the fine hole and then is inflated into the air bag through a pipeline, the air bag is inflated and then expanded, and then a V-shaped opening in the sliding block is enlarged, so that the sliding block is tightly clamped in the dovetail-shaped clamping groove, the connection strength of the sliding block and the clamping groove is further increased, and the reliability of water pipe connection and sealing is further improved.
Preferably, one end of the baffle is hinged with one end of the piston rod, which is far away from the cylinder barrel, and the other end of the baffle is hinged with the inner wall of the connecting pipe through a connecting rod; when the piston rod slides towards the cylinder barrel, the baffle plate is opened, the acting force of water flow on the piston rod is increased, and the response speed of the sliding block is further improved; when the baffle drives the piston rod to move under the impact of water flow, the piston rod drives the baffle to rotate when sliding in the cylinder barrel, the connecting rod is matched with the piston rod and the connecting pipe, the baffle hinged with the connecting rod is unfolded, the water-facing surface of the baffle is increased, the resistance of the baffle is increased, the sliding speed of the piston rod is increased, and the response speed of the sliding block is further increased.
Preferably, the baffle plate is provided with a group of drainage holes, and water wheels are rotatably connected in the drainage holes; a rotating shaft of the water wheel is hinged with the inner wall of the drainage hole through a support rod, and a torsional spring is arranged at the hinged position of the support rod and the drainage hole; the drainage holes are matched with the water wheels to rotate, so that the water flow speed at the position of the baffle can be increased, and the influence of the baffle on the water flow speed and pressure in the water pipe is reduced; can guide the rivers direction in the water pipe through the drainage hole, near baffle rivers speed is accelerated in cooperation water wheels rotation to reduce the loss of water pressure in the water pipe, when the piston rod removed the cylinder bottom, rivers promote water wheels, and then promote branch and rotate, and the flow in increase drainage hole after water wheels rotate reduces the resistance of baffle to the rivers, further reduces the loss of water pressure in the water pipe.
Preferably, a take-up pulley is arranged at the hinged position of the connecting rod and the connecting pipe, which are positioned on one side of the piston rod, and the take-up pulley is fixedly connected with a hinged shaft of the connecting rod; an annular sealing groove is formed in the inner wall of the connecting pipe, which is far away from the center of the connecting pipe, of the sliding hole, and an annular sealing ring with a horn-shaped cross section is arranged in the sealing groove; a steel wire rope is wound on the periphery of the sealing ring; the other end of the steel wire rope is wound on a take-up pulley through a pipeline; the wire winding wheel, the steel wire rope, the sealing groove and the sealing ring are matched with each other, so that the sealing performance of the sealing ring is improved after the steel wire rope is tightened, and the reliability of water pipe connection and sealing is further improved; the connecting rod is driven by the baffle to rotate, the rotating connecting rod drives the take-up pulley to rotate, the take-up pulley tightens up the steel wire rope, pressure between the sealing ring in the sealing groove and the water pipe is increased, the sealing effect of the sealing ring on the water pipe is increased, and the reliability of water pipe connection and sealing is further improved.
The invention has the following beneficial effects:
1. according to the high-precision mechanical casting, after the fire pump is started, the water pressure in the water pipe is instantly increased, when pressure shock waves in the water flow are transmitted to the connecting pipe, the baffle plate and the piston rod are pushed to move, compressed gas formed by air in the cylinder barrel enters the sliding hole through the pipeline, the sliding block is pushed to be clamped in the clamping groove, the connecting pipe and the water pipe are prevented from loosening, and the connection reliability of the connecting pipe is improved; meanwhile, the sliding block clamped into the clamping groove can prevent the O-shaped sealing ring from turning out of the sealing ring groove under the action of water flow pressure shock waves, and the sealing reliability of the connecting pipe is further improved.
2. According to the high-precision mechanical casting, after the sliding block is pushed to be clamped into the clamping groove by the compressed gas in the sliding hole, the compressed gas continuously extrudes the rubber layer to enable the rubber layer to be sunken towards one side of the cavity, the diameter of the fine hole is increased by the stretched rubber layer, the compressed gas enters the fine hole and then is filled into the air bag through the pipeline, the air bag expands and expands after being inflated, the V-shaped opening in the sliding block is expanded, the sliding block is tightly clamped in the dovetail-shaped clamping groove, the connecting strength of the sliding block and the clamping groove is further increased, and therefore the reliability of connection and sealing of a water pipe is further improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
FIG. 5 is an enlarged view of a portion of FIG. 2 at C;
FIG. 6 is an enlarged view of a portion of FIG. 2 at D;
in the figure: the water pipe comprises a water pipe 1, a connecting pipe 2, a cylinder barrel 3, a piston rod 4, a baffle 5, a sliding hole 6, a sliding block 7, an O-shaped sealing ring 8, a clamping groove 9, a V-shaped opening 10, an air bag 11, a cavity 12, a rubber layer 13, a fine hole 14, a connecting rod 15, a drainage hole 16, a water wheel 17, a take-up pulley 18, a sealing groove 19, a sealing ring 20, a steel wire rope 21 and a support rod 22.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, the high-precision mechanical casting provided by the invention comprises a water pipe 1, a connecting pipe 2, a cylinder barrel 3, a piston rod 4, a baffle 5, a slide hole 6, a slide block 7, an O-shaped seal ring 8 and a clamping groove 9; a connecting pipe 2 is sleeved on the periphery of the water pipe 1 at the joint of the adjacent water pipes 1, and a cylinder barrel 3 is arranged on the inner wall of the middle part of the connecting pipe 2; a piston rod 4 is connected in the cylinder barrel 3 in a sliding mode, an included angle between the axis of the piston rod 4 and the axis of the water pipe 1 is an acute angle, and the piston rod 4 deflects to one side of the water flow in the water pipe 1 in the opposite direction; a baffle 5 is arranged at one end of the piston rod 4 far away from the cylinder barrel 3; two ends of the inner wall of the connecting pipe 2, which are far away from the cylinder barrel 3, are symmetrically provided with a group of sliding holes 6 respectively, and sliding blocks 7 are connected in the sliding holes 6 in a sliding manner; a clamping groove 9 matched with the sliding block 7 is formed in the position, corresponding to the sliding hole 6, of the outer edge of the water pipe 1; the slide hole 6 is communicated with a rodless cavity in the cylinder barrel 3 through a pipeline; a sealing ring groove is formed in one side, close to the middle of the connecting pipe 2, of the sliding hole 6, and an O-shaped sealing ring 8 is arranged in the sealing ring groove; through the mutual matching among the water pipe 1, the connecting pipe 2, the cylinder barrel 3, the piston rod 4, the baffle 5, the sliding hole 6, the sliding block 7, the O-shaped sealing ring 8 and the clamping groove 9, the sliding block 7 is pushed out to clamp the clamping groove 9 after the piston rod 4 slides, the sealing ring is prevented from loosening, and the reliability of connection and sealing of the water pipe 1 is improved; when a fire disaster occurs, the fire pump is started, the water pressure in the water pipe 1 is instantly increased, and when pressure shock waves in water flow are transmitted to the connecting pipe 2, the baffle plate 5 and the piston rod 4 are pushed to move, the air in the cylinder barrel 3 is compressed by the contracted piston rod 4 to form compressed air, the compressed air enters the slide hole 6 through a pipeline, the slide block 7 is pushed to move, the moved slide block 7 is clamped into the clamping groove 9, the connecting pipe 2 is prevented from being loosened from the water pipe 1, and the connection reliability of the connecting pipe 2 is improved; meanwhile, the sliding block 7 clamped into the clamping groove 9 can also prevent the O-shaped sealing ring 8 from turning out of the sealing ring groove under the action of water flow pressure shock waves, and the sealing reliability of the connecting pipe 2 is further improved.
As an implementation mode of the invention, the diameter of the sliding block 7 is smaller than that of the clamping groove 9, so that the sliding block 7 can slide into the clamping groove 9 quickly to clamp the water pipe 1, and the response speed of the sliding block 7 is further improved; through the clearance fit between draw-in groove 9 and the slider 7, reduce the resistance when slider 7 slides, increase slider 7's rate of motion, further improve slider 7's response speed, guarantee that slider 7 in time blocks out draw-in groove 9, further improve the reliability that water pipe 1 connects and seals.
As an embodiment of the present invention, the slot 9 has a dovetail shape; one end of the sliding block 7, which is close to the clamping groove 9, is provided with a V-shaped opening 10, and an air bag 11 is fixedly connected in the V-shaped opening 10; a cavity 12 is formed in one end, far away from the clamping groove 9, of the sliding block 7, and the cavity 12 is communicated with the air bag 11 through a pipeline; an elastic rubber layer 13 in sealing connection is arranged at the opening of the cavity 12, and a group of fine holes 14 with the diameter of zero point one millimeter are formed in the rubber layer 13; through the matching among the clamping groove 9, the sliding block 7, the V-shaped opening 10, the air bag 11, the cavity 12, the rubber layer 13 and the pore 14, the V-shaped opening 10 is opened after the sliding block 7 is clamped in the clamping groove 9, the clamping effect of the sliding block 7 is further increased, and the reliability of connection and sealing of the water pipe 1 is further improved; after the sliding block 7 is pushed to be clamped into the clamping groove 9 through compressed gas in the sliding hole 6, the compressed gas continues to extrude the rubber layer 13 to enable the rubber layer 13 to be sunken towards one side of the cavity 12, the stretched rubber layer 13 enables the diameter of the fine hole 14 to be enlarged, the compressed gas enters the fine hole 14 and then is filled into the air bag 11 through a pipeline, the air bag 11 is inflated and then expands, the V-shaped opening 10 in the sliding block 7 is enlarged, the sliding block 7 is tightly clamped into the dovetail-shaped clamping groove 9, the connection strength of the sliding block 7 and the clamping groove 9 is further increased, and the connection and sealing reliability of the water pipe 1 is further improved.
As an embodiment of the invention, one end of the baffle 5 is hinged with one end of the piston rod 4 far away from the cylinder 3, and the other end is hinged with the inner wall of the connecting pipe 2 through a connecting rod 15; when the piston rod 4 slides into the cylinder barrel 3, the baffle 5 is opened, so that the acting force of water flow on the piston rod 4 is increased, and the response speed of the sliding block 7 is further increased; when baffle 5 drives piston rod 4 and moves under the impact of rivers, piston rod 4 drives baffle 5 and rotates when sliding in cylinder 3, and connecting rod 15 cooperation piston rod 4 and connecting pipe 2 will strut with connecting rod 15 articulated baffle 5, increase the upstream face of baffle 5, and then the resistance that increases baffle 5 and receive for the sliding speed of piston rod 4 further improves the response speed of slider 7.
As an embodiment of the invention, a group of drainage holes 16 are formed in the baffle 5, and a water wheel 17 is rotatably connected in the drainage holes 16; a rotating shaft of the water wheel 17 is hinged with the inner wall of the drainage hole 16 through a support rod 22, and a torsional spring is arranged at the hinged position of the support rod 22 and the drainage hole 16; the drainage holes 16 are matched with the water wheels 17 to rotate, so that the water flow speed at the baffle 5 can be increased, and the influence of the baffle 5 on the water flow speed and pressure in the water pipe 1 is reduced; can guide the rivers direction in the water pipe 1 through drainage hole 16, near baffle 5 current speed is accelerated in cooperation water wheels 17 rotation to reduce the loss of water pressure in the water pipe 1, when piston rod 4 removed 3 bottoms of cylinder, rivers promote water wheels 17, and then promote branch 22 and rotate, increase the flow in drainage hole 16 after water wheels 17 rotates, reduce baffle 5 to the resistance of rivers, further reduce the loss of water pressure in the water pipe 1.
As an embodiment of the present invention, a take-up pulley 18 is disposed at a hinge joint of the connecting rod 15 and the connecting pipe 2, the hinge joint being located on one side of the piston rod 4, and the take-up pulley 18 is fixedly connected with a hinge shaft of the connecting rod 15; an annular sealing groove 19 is formed in the inner wall of the connecting pipe 2, which is far away from the center of the connecting pipe 2, of the sliding hole 6, and an annular sealing ring 20 with a horn-shaped cross section is arranged in the sealing groove 19; a steel wire rope 21 is wound on the periphery of the sealing ring 20; the other end of the steel wire rope 21 is wound on the take-up pulley 18 through a pipeline; through the mutual matching among the take-up pulley 18, the steel wire rope 21, the sealing groove 19 and the sealing ring 20, the sealing performance of the sealing ring 20 is improved after the steel wire rope 21 is tightened, and the connection and sealing reliability of the water pipe 1 is further improved; rotate under the drive of baffle 5 through connecting rod 15, pivoted connecting rod 15 drives take-up pulley 18 and rotates, and take-up pulley 18 tightens up wire rope 21, and then increases the pressure between sealing ring 20 in the seal groove 19 and the water pipe 1, increases the sealed effect of sealing ring 20 to water pipe 1, further improves water pipe 1 and connects and sealed reliability.
When the fire pump works, the fire pump is started, the water pressure in the water pipe 1 is instantly increased, when pressure shock waves in water flow are transmitted to the connecting pipe 2, the baffle plate 5 and the piston rod 4 are pushed to move, the air in the cylinder barrel 3 is compressed by the contracted piston rod 4 to form compressed air, the compressed air enters the slide hole 6 through a pipeline and pushes the slide block 7 to move, the moved slide block 7 is clamped into the clamping groove 9, the connecting pipe 2 is prevented from being loosened from the water pipe 1, and the connection reliability of the connecting pipe 2 is improved; meanwhile, the sliding block 7 clamped into the clamping groove 9 can also prevent the O-shaped sealing ring 8 from turning out of the sealing ring groove under the action of water flow pressure shock waves, so that the sealing reliability of the connecting pipe 2 is further improved; through the clearance fit between the clamping groove 9 and the sliding block 7, the resistance of the sliding block 7 during sliding is reduced, the movement speed of the sliding block 7 is increased, the response speed of the sliding block 7 is further improved, the sliding block 7 is guaranteed to be clamped out of the clamping groove 9 in time, and the connection and sealing reliability of the water pipe 1 is further improved; after the sliding block 7 is pushed to be clamped into the clamping groove 9 by compressed gas in the sliding hole 6, the compressed gas continuously extrudes the rubber layer 13 to enable the rubber layer 13 to be sunken towards one side of the cavity 12, the stretched rubber layer 13 enables the diameter of the fine hole 14 to be enlarged, the compressed gas enters the fine hole 14 and then is filled into the air bag 11 through a pipeline, the air bag 11 is inflated and then expands and expands, further the V-shaped opening 10 on the sliding block 7 is enlarged, the sliding block 7 is tightly clamped into the dovetail-shaped clamping groove 9, the connection strength of the sliding block 7 and the clamping groove 9 is further increased, and therefore the connection and sealing reliability of the water pipe 1 is further; when the baffle 5 drives the piston rod 4 to move under the impact of water flow, the piston rod 4 drives the baffle 5 to rotate when sliding in the cylinder barrel 3, the connecting rod 15 is matched with the piston rod 4 and the connecting pipe 2 to prop the baffle 5 hinged with the connecting rod 15 open, the water facing surface of the baffle 5 is increased, the resistance borne by the baffle 5 is further increased, the sliding speed of the piston rod 4 is accelerated, and the response speed of the sliding block 7 is further increased; the water flow direction in the water pipe 1 can be guided through the drainage holes 16, the water flow speed near the baffle 5 is accelerated by matching with the rotation of the water wheel 17, so that the water pressure loss in the water pipe 1 is reduced, when the piston rod 4 moves to the bottom of the cylinder barrel 3, the water flow pushes the water wheel 17, the supporting rod 22 is further pushed to rotate, the flow of the drainage holes 16 is increased after the water wheel 17 rotates, the resistance of the baffle 5 to the water flow is reduced, and the water pressure loss in the water pipe 1 is further reduced; rotate under the drive of baffle 5 through connecting rod 15, pivoted connecting rod 15 drives take-up pulley 18 and rotates, and take-up pulley 18 tightens up wire rope 21, and then increases the pressure between sealing ring 20 in the seal groove 19 and the water pipe 1, increases the sealed effect of sealing ring 20 to water pipe 1, further improves water pipe 1 and connects and sealed reliability.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A high accuracy machinery foundry goods which characterized in that: comprises a water pipe (1), a connecting pipe (2), a cylinder barrel (3), a piston rod (4), a baffle (5), a slide hole (6), a slide block (7), an O-shaped sealing ring (8) and a clamping groove (9); a connecting pipe (2) is sleeved on the periphery of the water pipe (1) at the joint of the adjacent water pipes (1), and a cylinder barrel (3) is arranged on the inner wall of the middle part of the connecting pipe (2); a piston rod (4) is connected in the cylinder barrel (3) in a sliding mode, an included angle between the axis of the piston rod (4) and the axis of the water pipe (1) is an acute angle, and the piston rod (4) deflects to one side of the water pipe (1) in the opposite direction of water flow; a baffle plate (5) is arranged at one end of the piston rod (4) far away from the cylinder barrel (3); two ends of the inner wall of the connecting pipe (2) far away from the cylinder barrel (3) are symmetrically provided with a group of sliding holes (6) respectively, and sliding blocks (7) are connected in the sliding holes (6) in a sliding manner; a clamping groove (9) matched with the sliding block (7) is formed in the position, corresponding to the sliding hole (6), of the outer edge of the water pipe (1); the sliding hole (6) is communicated with a rodless cavity in the cylinder barrel (3) through a pipeline; a sealing ring groove is formed in one side, close to the middle of the connecting pipe (2), of the sliding hole (6), and an O-shaped sealing ring (8) is arranged in the sealing ring groove; through mutually supporting between water pipe (1), connecting pipe (2), cylinder (3), piston rod (4), baffle (5), slide opening (6), slider (7), O type sealing washer (8) and draw-in groove (9), release slider (7) after piston rod (4) slide and block draw-in groove (9), prevent that the sealing washer pine from taking off, improve water pipe (1) and connect and sealed reliability.
2. A high precision mechanical casting according to claim 1 wherein: the diameter of the sliding block (7) is smaller than that of the clamping groove (9), so that the sliding block (7) can slide into the clamping groove (9) quickly to clamp the water pipe (1), and the response speed of the sliding block (7) is further improved.
3. A high precision mechanical casting according to claim 1 wherein: the clamping groove (9) is in a dovetail shape; one end of the sliding block (7) close to the clamping groove (9) is provided with a V-shaped opening (10), and an air bag (11) is fixedly connected in the V-shaped opening (10); a cavity (12) is formed in one end, far away from the clamping groove (9), of the sliding block (7), and the cavity (12) is communicated with the air bag (11) through a pipeline; an elastic rubber layer (13) in sealing connection is arranged at the opening of the cavity (12), and a group of fine holes (14) with the diameter of zero point one millimeter are formed in the rubber layer (13); through the cooperation between draw-in groove (9), slider (7), V-arrangement opening (10), gasbag (11), cavity (12), rubber layer (13) and pore (14), V-arrangement opening (10) open after in draw-in groove (9) is gone into to slider (7) card, further increase the chucking effect of slider (7), further improve water pipe (1) and connect and sealed reliability.
4. A high precision mechanical casting according to claim 1 wherein: one end of the baffle (5) is hinged with one end of the piston rod (4) far away from the cylinder barrel (3), and the other end of the baffle is hinged with the inner wall of the connecting pipe (2) through a connecting rod (15); when the piston rod (4) slides towards the cylinder barrel (3), the baffle (5) is opened, the acting force of water flow on the piston rod (4) is increased, and the response speed of the sliding block (7) is further improved.
5. A high precision mechanical casting according to claim 1 wherein: a group of drainage holes (16) are formed in the baffle (5), and a water wheel (17) is rotatably connected in the drainage holes (16); a rotating shaft of the water wheel (17) is hinged with the inner wall of the drainage hole (16) through a support rod (22), and a torsional spring is arranged at the hinged position of the support rod (22) and the drainage hole (16); the drainage holes (16) are matched with the water wheels (17) to rotate, so that the water flow speed at the position of the baffle (5) can be increased, and the influence of the baffle (5) on the water flow speed and pressure in the water pipe (1) is reduced.
6. A high precision mechanical casting according to claim 1 wherein: a take-up pulley (18) is arranged at the hinged position of the connecting rod (15) positioned at one side of the piston rod (4) and the connecting pipe (2), and the take-up pulley (18) is fixedly connected with a hinged shaft of the connecting rod (15); an annular sealing groove (19) is formed in the inner wall of the connecting pipe (2) on one side, away from the center of the connecting pipe (2), of the sliding hole (6), and an annular sealing ring (20) with a horn-shaped cross section is arranged in the sealing groove (19); a steel wire rope (21) is wound on the periphery of the sealing ring (20); the other end of the steel wire rope (21) is wound on the take-up pulley (18) through a pipeline; through mutual cooperation between take-up pulley (18), wire rope (21), seal groove (19), sealing ring (20), increase the leakproofness of sealing ring (20) after tightening up wire rope (21), further improve water pipe (1) and connect and sealed reliability.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910567717.7A CN110260071B (en) | 2019-06-27 | 2019-06-27 | High-precision mechanical casting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910567717.7A CN110260071B (en) | 2019-06-27 | 2019-06-27 | High-precision mechanical casting |
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| CN110260071A CN110260071A (en) | 2019-09-20 |
| CN110260071B true CN110260071B (en) | 2020-12-11 |
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| CN201910567717.7A Active CN110260071B (en) | 2019-06-27 | 2019-06-27 | High-precision mechanical casting |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165668B (en) * | 2021-11-26 | 2024-02-06 | 山东冠通管业有限公司 | Polypropylene anti-corrosion pipe joint |
| CN114738577B (en) * | 2022-03-11 | 2024-07-16 | 贵州乌江水电开发有限责任公司 | Convenient connection structure of water pipe |
| CN114738578B (en) * | 2022-03-11 | 2024-07-12 | 贵州乌江水电开发有限责任公司 | Butt joint oil pipe of power plant |
| CN117704165B (en) * | 2023-12-15 | 2024-12-20 | 太仓濂辉液压器材有限公司 | A leak-proof high-pressure oil pipe connector |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7036850B2 (en) * | 2003-09-04 | 2006-05-02 | Ajit Singh Gill | Pipe coupling |
| CN201180880Y (en) * | 2008-03-01 | 2009-01-14 | 北京和创达通用技术有限公司 | Pneumatic ring locking quick connector |
| CN101629662B (en) * | 2009-07-28 | 2012-04-18 | 吴良江 | Fire hose pipe joint |
| US8544497B2 (en) * | 2009-10-30 | 2013-10-01 | Emd Millipore Corporation | Fluid transfer device and system |
| KR101538868B1 (en) * | 2013-12-26 | 2015-07-22 | 주식회사 포스코 | Apparatus for sealing pipe |
| CN104847978B (en) * | 2015-04-26 | 2016-08-24 | 谢洁萍 | A kind of modified model Pneumatic pipeline connector |
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Effective date of registration: 20201123 Address after: 239400 intersection of Guanshan Avenue, Huaihe Avenue, industrial new town, Mingguang City, Chuzhou City, Anhui Province Applicant after: Anhui daorun Electronic Co., Ltd Address before: Room 406, 4th floor, Central Taxation Branch, 78 Yingbin Road, Hongye Street, Bengbu City, Anhui Province Applicant before: Lian Wei |
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