A shock absorbing device for pipe connection

Abstract

The invention discloses a shock absorbing device for a pipe joint, belonging to the technical field of shock absorbing devices, comprising a curved pipe, a straight pipe and a shock absorbing box arranged at the joint of the two; a water shock absorbing mechanism, a shock absorbing unit and a driving unit are arranged in the shock absorbing box, and the three cooperate with each other. When the amount of water increases, the driving ball is gradually released through the shielding unit, the transmission block is pushed outward, and the first trapezoidal block is gradually clamped into the triangular clamping groove at the rear, so that the contact distance between the transmission block and the shock absorbing block is shortened, and the vibration force generated by the contact between the transmission block and the shock absorbing block will be greater, thereby further increasing the neutralization of the impact force generated by the water, and the shock absorbing level is gradually increased from level one to level four by superimposing the released multiple driving balls, thereby neutralizing the impact force of water on the inner wall of the straight pipe, and can effectively prevent the impact force of the water from loosening the joint between the straight pipe and the curved pipe and causing water leakage.

Description

Technical Field

[0001] The invention belongs to the technical field of shock absorbing devices, and in particular relates to a shock absorbing device used at a pipeline connection. Background Art

[0002] In order to transport water, pipelines are needed. The pipelines are often pre-buried underground. When an earthquake occurs, the vibration caused by the earthquake has a great impact on the pipeline, which can easily cause the pipeline to rupture and leak. Pipeline shock-absorbing devices are used on the market to reduce the shock of the pipeline, so as to avoid pipeline rupture and leakage. However, the shock-absorbing method of the pipeline shock-absorbing device in the prior art is more to reduce the shock caused by the impact of external vibrations on the outer wall of the pipeline. When the external vibration affects the water flowing in the pipeline, it will cause the water to hit the inner wall of the pipeline and generate vibration. The above-mentioned pipeline shock-absorbing device cannot reduce the vibration. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a shock absorbing device for a pipe connection to solve the technical problem that the pipe shock absorbing device in the prior art cannot absorb the vibration caused by water hitting the inner wall of the pipe.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention provides a shock absorbing device for pipe connection, comprising a curved pipe, a straight pipe and a shock absorbing box arranged at the connection between the two; a plurality of water shock absorbing mechanisms arranged in an array around the straight pipe are arranged in the shock absorbing box; each water shock absorbing mechanism comprises a rotatable circular plate; a plurality of radial first slide grooves and second slide grooves are arranged in a circular array inside the circular plate; each first slide groove runs through the circumference of the circular plate; each second slide groove is located in the same straight line as the corresponding first slide groove; slide plates are arranged on both sides of each first slide groove; a transmission block is slidably connected between the two slide plates; a plurality of driving balls arranged in the same straight line are arranged in the second slide groove; the driving balls can make the transmission blocks gradually move. Gradually extending out of the first slide groove; the slide plate is connected to the first slide groove by the first cylinder; the first slide groove and the second slide groove are connected by the shielding unit; a shock-absorbing unit is arranged on the outer wall of the linear pipe; the shock-absorbing unit includes four shock-absorbing plates in a circular shape and shock-absorbing blocks slidably arranged between the shock-absorbing plates; two opposite shock-absorbing plates are slidably connected to the linear pipe by the second cylinder; the transmission block can make the shock-absorbing block gradually approach the outer wall of the linear pipe; a contact block is arranged on the inner wall of the linear pipe; one end of the contact block located outside the linear pipe is connected to a driving unit for driving the circular plate to rotate; the contact block can sense the flow rate of water in the linear pipe and can control the rotation speed of the driving unit.

[0006] Furthermore, the shielding unit includes a turntable coaxially connected to the circular plate; a plurality of connecting strips are evenly arranged on the circumference of the turntable; an arc-shaped baffle is connected to the connecting strip; a plurality of arc-shaped grooves are opened in the circular plate; each arc-shaped groove is located between the corresponding first slide groove and the second slide groove; each arc-shaped baffle is slidably connected in the arc-shaped groove and can separate the first slide groove and the second slide groove.

[0007] Furthermore, the driving unit includes a connecting rod connected to the contact block; a first motor is connected to the connecting rod; a first bevel gear is connected to the first motor; a second bevel gear meshing with the first bevel gear is coaxially fixed on one side of the circular plate close to the first bevel gear; the second bevel gear is connected to the inner wall of the shock absorber box through a fixing bar.

[0008] Furthermore, a plurality of first dampers are evenly hinged on the circumference of the curved pipe; the free ends of the first dampers are hinged to the inner wall of the shock-absorbing box; an internal shock-absorbing mechanism is provided between the straight pipe and the curved pipe; the internal shock-absorbing mechanism includes a circular ring sleeved between the straight pipe and the curved pipe; a plurality of arc blocks are slidably connected on the circular ring; adjacent arc blocks are connected by second dampers; the two sides of each arc block are hinged to the corresponding curved pipe and straight pipe respectively through third dampers and fourth dampers; resistance units are provided between adjacent fourth dampers, and the resistance units include fan-shaped blocks; fan-shaped grooves are provided at both ends of the fan-shaped blocks; a fan-shaped bar is slidably connected in the fan-shaped groove through a fifth damper; the free end of the fan-shaped bar is hinged to the corresponding fourth damper.

[0009] Furthermore, the circumferential side of the fan-shaped block is provided with a resistance groove connected to the corresponding fan-shaped groove; a resistance rod is rotatably connected in the resistance groove; the side wall of the resistance rod is connected to the circumferential side of the fan-shaped block through a first tension spring; the free end of the resistance rod is symmetrically connected with a clamping block and a first hook block; the second hook block is rotatably connected in the resistance groove; one end of the second hook block can be hooked with the first hook block, and the other end thereof extends into the fan-shaped groove; a fixed block is provided in the resistance groove; the second hook block and the fixed block are connected by a second tension spring; a clamping groove is provided on the inner circumference of the arc block; and a damping block is connected in the clamping groove through a sixth damper.

[0010] The beneficial effects of the present invention are:

[0011] 1. With the increase of water volume, the impact force of water driven by earthquake on the straight pipe will further increase. The driving ball will be gradually released through the shielding unit to push the transmission block outward, and the first trapezoidal block will gradually be stuck in the triangular slot at the back, shortening the contact distance between the transmission block and the shock-absorbing block. Since the shock-absorbing block reaches the limit position and can no longer move inward to consume energy, the vibration force generated by the contact between the transmission block and the shock-absorbing block will be greater, thereby further increasing the neutralization of the impact force generated by the water. By superimposing multiple released driving balls, the shock-absorbing level is gradually increased from level one to level four, thereby neutralizing the impact force of water on the inner wall of the straight pipe, which can effectively prevent the impact force of water from loosening the connection between the straight pipe and the bend pipe and causing water leakage.

[0012] 2. By shortening the time that the arc-shaped baffle blocks the second chute, the four driving balls can quickly slide into the first chute under the action of centrifugal force, so that the shock absorption level is instantly increased from level zero to level four, thereby avoiding the situation where the impact force of the water in the straight pipe is the highest due to the sudden increase in the volume of water in the straight pipe, thereby effectively avoiding emergencies.

[0013] 3. Multiple dampers cooperate with each other to gradually consume the seismic force. After the resistance rod rotates and bounces up, the card block limits the sliding of the arc block through the damping block, so that the energy consumption behind strengthens the energy consumption of the arc block, further improving the energy consumption, thereby effectively avoiding the shaking and gradual loosening of the connection between the straight pipe and the curved pipe, thereby causing rupture and leakage.

[0014] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0016] Figure 1 This is an application scenario diagram of the shock absorbing device of the present invention;

[0017] Figure 2 It is a connection diagram of the water shock absorbing device of the present invention and the straight pipeline;

[0018] Figure 3 Another view of the connection between the water shock absorbing device and the straight pipe of the present invention;

[0019] Figure 4 A three-dimensional diagram of the internal structure of the circular plate of the present invention;

[0020] Figure 5A longitudinal sectional view of the transmission block of the present invention;

[0021] Figure 6 A three-dimensional diagram of the connection between the second cylinder and the damping plate of the present invention;

[0022] Figure 7 A longitudinal cross-sectional view of the shock absorbing block of the present invention;

[0023] Figure 8 A three-dimensional diagram of the shock absorbing mechanism of the present invention;

[0024] Fig. 9 It is a partial cross-sectional view of the sector block of the present invention;

[0025] Fig.10 For the present invention Fig. 9 A partial enlarged view of the middle A;

[0026] Fig.11 It is a partial cross-sectional view of the curved plate of the present invention.

[0027] The markings in the accompanying drawings are as follows: turning pipe 1, straight pipe 2, shock-absorbing box 3, circular plate 4, slide plate 5, transmission block 6, driving groove 7, driving ball 8, triangular slot 9, first trapezoidal block 10, first cylinder 11, shock-absorbing plate 12, shock-absorbing block 13, second cylinder 14, second trapezoidal block 15, contact block 16, connecting strip 17, arc baffle 18, connecting rod 19, first motor 20, fixing strip 21, first damper 22, arc block 23, third damper 24, fourth damper 25, fan-shaped block 26, fifth damper 27, resistance slot 28, resistance rod 29, first tension spring 30, card block 31, first hook block 32, second hook block 33, second tension spring 34, damping block 35. DETAILED DESCRIPTION

[0028] like Figures 1 to 11 As shown, the present invention provides a shock absorbing device for pipe connection, comprising a curved pipe 1, a straight pipe 2 and a shock absorbing box 3 arranged at the connection between the two; the shock absorbing box 3 is provided with a plurality of water shock absorbing mechanisms arrayed around the straight pipe 2, and one of them is used as an example for explanation in this embodiment; Figure 2-4 As shown, the water shock absorbing mechanism includes a rotatable circular plate 4; four radial first slide grooves and second slide grooves are provided in a circular array inside the circular plate 4; each first slide groove runs through the circumference of the circular plate 4; each second slide groove is located in the same straight line as the corresponding first slide groove; slide plates 5 are provided on both sides of each first slide groove; a transmission block 6 is connected radially and slidably between the two slide plates 5; a driving groove 7 in the same direction is provided on the side wall of each first slide groove; a driving block is connected in the driving groove 7 through a driving tension spring; the top wall of the driving block is connected to the bottom wall of the corresponding transmission block 6; four driving balls 8 arranged in the same straight line are provided in the second slide groove;

[0029] like Figure 5 As shown, four triangular slots 9 are vertically provided on the side walls facing each other of the two slide plates 5; transmission slots are provided on the left and right side walls of the transmission block 6; a first trapezoidal block 10 is connected to the transmission slot through a transmission spring; when the transmission block 6 moves upward, the transmission block 6 can gradually slide outward through the first trapezoidal block 10 and engage with the corresponding triangular slot 9; when the circular plate 4 rotates, the centrifugal force causes the driving ball 8 to roll toward the transmission block 6, thereby transmitting the driving force to the transmission block 6, so that the transmission block 6 gradually extends out of the first slide slot; the slide plate 5 is connected to the side wall of the first slide slot through the first cylinder 11, and the telescopic shaft of the first cylinder 11 is vertically connected to the side wall of the slide plate 5; the first slide slot and the second slide slot are connected through a shielding unit;

[0030] like Figure 3 , 6 As shown, a shock absorbing unit is provided on the outer wall of the linear pipe 2; the shock absorbing unit includes four shock absorbing plates 12 in a round shape and a shock absorbing block 13 slidably arranged between the shock absorbing plates 12; two shock absorbing plates 12 in the left and right directions are vertically connected to the peripheral side of the linear pipe 2; a second cylinder 14 is provided on the outer side of the two shock absorbing plates 12 in the up and down directions; the second cylinder 14 is connected to the side wall of the linear pipe 2 in a direction perpendicular to the axis of the linear pipe 2, and the telescopic axis of the second cylinder 14 is vertically connected to the corresponding shock absorbing plates 12 in the up and down directions;

[0031] like Figure 7 As shown, the upper and lower damping plates 12 are provided with two triangular grooves in the horizontal direction facing the side walls; the upper and lower side walls of the damping block 13 are provided with damping grooves in the vertical direction; the damping grooves are connected with the second trapezoidal block 15 through the extending spring; when the damping block 13 slides to the left, it can gradually slide out of the damping groove through the second trapezoidal block 15 and engage with the corresponding triangular groove; the damping block 13 is connected to the damping plates 12 by sliding along the left and right directions through the damping springs arranged on the sides of the linear pipe 2; the cross-sectional shapes of the transmission block 6 and the damping block 13 are both wedge-shaped; when the transmission block 6 contacts the damping block 13, the damping block 13 can gradually slide inward and the second trapezoidal block 15 can gradually slide out of the damping groove and engage with the corresponding triangular groove;

[0032] like Figure 2 As shown, a contact block 16 is provided through the inner wall of the linear pipe 2; one end of the contact block 16 located outside the linear pipe 2 is connected to a driving unit for driving the circular plate 4 to rotate; a sensor (not shown in the figure) is provided on the upper side wall of the contact block 16, and a controller (not shown in the figure) is provided inside the contact block 16, the sensor can sense the flow volume of water in the linear pipe 2, and the controller can control the rotation speed of the driving unit.

[0033] The principle and effect of the above technical solution:

[0034] like Figure 2As shown, the water is delivered from top to bottom, and the water flow contacts the upper side wall of the contact block 16. When the sensor senses the flow of water, the controller controls the driving unit to generate power to drive the circular plate 4 to rotate clockwise (as shown in FIG. Figure 3 As shown); under the action of centrifugal force, the transmission block 6 is driven to slide outward, and is engaged with the corresponding nearest triangular groove 9 through the first trapezoidal block 10; when the circular plate 4 rotates, each transmission block 6 contacts and vibrates with the damping block 13 on the straight pipe 2, thereby neutralizing the vibration generated by the water hitting the straight pipe 2 from the inside. At the same time, when the transmission block 6 contacts the damping block 13, due to the wedge-shaped fit, the damping block 13 is pushed to slide inward one grid, so that the second trapezoidal block 15 is engaged with the nearest triangular groove, forming a primary damping.

[0035] When the water transported in the straight pipe 2 gradually increases to one-fourth of the cross-sectional area of ​​the straight pipe 2, the volume of the water flowing in the straight pipe 2 will increase, and the impact force of the water hitting the straight pipe 2 driven by the earthquake will increase; when the sensor senses the increase in volume, the controller accelerates the power of the driving unit. Since the centrifugal force on the transmission block 6 is limited and it will not slide outward anymore, a driving ball 8 is released through the shielding unit. Under the action of centrifugal force, the driving ball 8 slides into the first slide groove through the second slide and hits the transmission block 6, so that the transmission block 6 continues to extend outward. At the same time, when the circular plate 4 rotates and the transmission block 6 and the shock-absorbing block 13 are located in the same straight line, the contact between the transmission block 6 and the shock-absorbing block 13 will be closer, thereby generating greater vibration to neutralize the impact force of the water. At the same time, when the transmission block 6 contacts the shock-absorbing block 13, the shock-absorbing block 13 will continue to be pushed inward, so that the second trapezoidal block 15 is stuck in the innermost triangular groove to form a secondary shock absorption.

[0036] If the water gradually increases to one-half of the straight pipe 2, as the amount of water increases, the impact force of the water hitting the straight pipe 2 driven by the earthquake will further increase, and a driving ball 8 will be released through the shielding unit again to continue pushing the transmission block 6 outward, and make the first trapezoidal block 10 snap into the third triangular slot 9. At this time, the contact distance between the transmission block 6 and the shock-absorbing block 13 is shorter. Since the shock-absorbing block 13 reaches the limit position and can no longer move inward to consume energy, the vibration force generated by the contact between the transmission block 6 and the shock-absorbing block 13 will be greater, thereby further increasing the neutralization of the impact force on the water, forming a three-level shock absorption.

[0037] If the water gradually increases to completely cover the cross-sectional area of ​​the linear pipe 2, the earthquake has the greatest impact on the water, causing the water to have the greatest impact force on the inner wall of the linear pipe 2. Finally, a driving ball 8 is released through the shielding unit to continue pushing the transmission block 6 outward and make the first trapezoidal block 10 snap into the last triangular slot 9. At this time, the contact distance between the transmission block 6 and the shock-absorbing block 13 is shorter. Since the shock-absorbing block 13 reaches the limit position and can no longer move inward to consume energy, the vibration force generated by the contact between the transmission block 6 and the shock-absorbing block 13 will be greater, thereby further increasing the neutralization of the impact force on the water, forming a four-level shock absorption.

[0038] The driving ball 8 cooperates with the shielding unit to gradually form a shock absorption method from level one to level four, effectively neutralizing the impact force of water on the inner wall of the straight pipe 2, and effectively preventing the impact force generated by water from loosening the connection between the straight pipe 2 and the curved pipe 1 and causing water leakage.

[0039] In this embodiment, Figure 4 As shown, the shielding unit includes a turntable connected to the circular plate 4 through a coaxial rotation of a shielding motor; a shielding groove (not shown in the figure) is opened at the center of the front side wall of the circular plate 4; the shielding motor is coaxially arranged in the shielding groove; four connecting strips 17 are evenly arranged on the circumference of the turntable; the connecting strip 17 is connected to an arc-shaped baffle 18 near the side wall of the circular plate 4; a plurality of arc-shaped grooves are opened in the circular plate 4; each arc-shaped groove is located between the corresponding first slide groove and the second slide groove; each arc-shaped baffle 18 is slidably connected in the arc-shaped groove and can separate the first slide groove and the second slide groove.

[0040] The principle and effect of the above technical solution:

[0041] When a driving ball 8 needs to be released, the arc baffle 18 is driven to rotate counterclockwise by the blocking motor. After the driving ball 8 is free from the blocking of the arc baffle 18, it slides into the first slide groove under the action of centrifugal force and pushes the transmission block 6. When a driving ball 8 slides out of the second slide groove, the blocking motor is controlled to rotate clockwise, so that the arc baffle 18 continues to block the second slide groove.

[0042] By shortening the time that the arc baffle 18 blocks the second slide groove, the four driving balls 8 can quickly slide into the first slide groove under the action of centrifugal force, so that the shock absorption level is instantly increased from level zero to level four, thereby avoiding the situation where the impact force of the water in the straight pipe 2 is the highest due to the sudden increase in the volume of water in the straight pipe 2, thereby effectively avoiding emergencies.

[0043] In this embodiment, Figure 2As shown, the driving unit includes a connecting rod 19 connected to the right side wall of the contact block 16; a first motor 20 is vertically connected to the connecting rod 19; a first bevel gear is connected to the first motor 20; a second bevel gear meshing with the first bevel gear is coaxially fixed on one side of the circular plate 4 close to the first bevel gear; the second bevel gear is connected to the inner wall of the shock absorber box 3 through a fixing strip 21.

[0044] Principle and effect of the above technical solution:

[0045] When the sensor senses the water flow, the controller controls the first motor 20 to drive the first bevel gear to rotate clockwise around the first motor 20, thereby driving the circular plate 4 to rotate clockwise through the second bevel gear (such as Figure 3 shown).

[0046] In this embodiment, Figure 8 As shown, four first dampers 22 are evenly hinged on the outer peripheral side of the turning pipe 1; the free end of the first damper 22 is hinged to the inner wall of the shock-absorbing box 3; an internal shock-absorbing mechanism is provided between the straight pipe 2 and the turning pipe 1; the internal shock-absorbing mechanism includes a circular ring sleeved between the straight pipe 2 and the turning pipe 1; four arc blocks 23 are slidably connected on the circular ring; adjacent arc blocks 23 are connected by a second damper (not shown in the figure); the two sides of each arc block 23 are respectively hinged to the corresponding turning pipe 1 and straight pipe 2 through a third damper 24 and a fourth damper 25; a resistance unit is provided between adjacent fourth dampers 25, and the resistance unit includes a fan-shaped block 26; fan-shaped grooves are provided at both ends of the fan-shaped block 26; a fan-shaped bar is slidably connected in the fan-shaped groove through a fifth damper 27; the free end of the fan-shaped bar is hinged to the corresponding fourth damper 25.

[0047] Principle and effect of the above technical solution:

[0048] During an earthquake, the connection between the straight pipe 2 and the curved pipe 1 will shake and gradually loosen, thus causing rupture and water leakage. In order to solve this problem, when an earthquake occurs, the force transmitted to the shock absorbing box 3 by the earthquake will consume energy through the first damper 22, forming a first-level energy consumption; if the first damper 22 is not enough to consume energy, the curved pipe 1 will be rotated through the first damper 22. This embodiment is explained by taking counterclockwise rotation as an example. The counterclockwise rotation of the curved pipe 1 will cause the third damper 24 to consume energy, forming a second-level energy consumption. If it still cannot be consumed, the third damper 24 will drive the arc block 23 to slide counterclockwise on the ring to cause the second damper between the arc blocks 23 to consume energy, forming a third-level energy consumption; at the same time, it will cause the fourth damper 25 to consume energy, forming a fourth-level energy consumption.

[0049] In this embodiment, Figure 8-11As shown, the outer peripheral sides of the sector block 26 near both ends are provided with resistance grooves 28 connected with the corresponding sector grooves; a resistance rod 29 is rotatably connected in the resistance groove 28; the upper side wall of the resistance rod 29 is connected to the peripheral side of the sector block 26 through a first tension spring 30; the free end of the resistance rod 29 is symmetrically connected with a clamping block 31 and a first hook block 32; a second hook block 33 is rotatably connected between the front and rear side walls of the resistance groove 28; the curved end of the second hook block 33 can be hooked with the first hook block 32, and its straight end extends into the sector groove; a fixed block is provided above the curved end in the resistance groove 28; the second hook block 33 is connected to the fixed block through a second tension spring 34; as shown Fig.11 As shown, a slot is formed on the inner circumference of the arc block 23 near both ends, and the cross-sectional shape of the slot is an inverted T-shape; an inverted T-shaped damping block 35 is connected to the slot via a sixth damper.

[0050] The principle and effect of the above technical solution:

[0051] When the fourth-level energy dissipation is not enough to consume, the seismic force will also cause the fan-shaped bar to squeeze the fifth damper 27 inward. When the fan-shaped bar slides in the fan-shaped groove, it will push the straight end of the second hook block 33, so that the curved end will release the restraint on the first hook block 32, so that the fixing rod is driven by the second tension spring 34 and rotates clockwise to the radial direction of the fan-shaped block 26. When the arc block 23 slides counterclockwise on the ring, the block 31 on the resistance rod 29 is stuck in the groove; thereby, the block 31 blocks the damping block 35 from sliding counterclockwise and dissipates energy through the fifth damper 27.

[0052] Multiple dampers cooperate with each other to gradually consume the seismic force. After the resistance rod 29 rotates and bounces up, the blocking block 31 limits the sliding of the arc block 23 through the damping block 35, so that the energy consumption behind strengthens the energy consumption of the arc block 23, further improving the energy consumption, thereby effectively preventing the connection between the straight pipe 2 and the curved pipe 1 from shaking and gradually loosening, thereby causing rupture and water leakage.

[0053] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A shock absorbing device for a pipe connection, characterized in that: The invention comprises a curved pipe, a straight pipe and a shock-absorbing box arranged at the connection between the two; the shock-absorbing box is provided with a plurality of water shock-absorbing mechanisms arrayed on the circumference of the straight pipe; each water shock-absorbing mechanism comprises a rotatable circular plate; the circular array inside the circular plate comprises a plurality of radial first slide grooves and a second slide groove; each first slide groove runs through the circumference of the circular plate; each second slide groove is located in the same straight line as the corresponding first slide groove; a slide plate is provided on both sides of each first slide groove; a transmission block is slidably connected between the two slide plates; a plurality of driving balls arranged in the same straight line are provided in the second slide groove; the driving ball can make the transmission block gradually extend out of the first slide groove; the slide plate and the first slide groove are connected by a first cylinder; the first slide groove and the second slide groove are connected by a blocking unit; a shock-absorbing unit is provided on the outer wall of the straight pipe; the shock-absorbing unit comprises four shock-absorbing plates in a circular shape and a shock-absorbing block slidably arranged between the shock-absorbing plates; two opposite shock-absorbing plates are slidably connected to the straight pipe through a second cylinder The transmission block can make the shock-absorbing block gradually approach the outer wall of the linear pipe; a contact block is provided on the inner wall of the linear pipe; one end of the contact block located outside the linear pipe is connected to a driving unit for driving the circular plate to rotate; the contact block can sense the flow rate of water in the linear pipe and can control the rotation speed of the driving unit; the shielding unit includes a turntable coaxially connected to the circular plate; a plurality of connecting strips are evenly arranged on the circumference of the turntable; an arc-shaped baffle is connected to the connecting strip; a plurality of arc-shaped grooves are opened in the circular plate; each arc-shaped groove is located between the corresponding first slide groove and the second slide groove; each arc-shaped baffle is slidably connected in the arc-shaped groove and can separate the first slide groove and the second slide groove; the driving unit includes a connecting rod connected to the contact block; a first motor is connected to the connecting rod; a first bevel gear is connected to the first motor; a second bevel gear meshing with the first bevel gear is coaxially fixed on one side of the circular plate close to the first bevel gear; the second bevel gear is connected to the inner wall of the shock-absorbing box through a fixing strip.

2. A shock absorbing device for pipe connection according to claim 1, characterized in that: A plurality of first dampers are evenly hinged on the circumference of the curved pipe; the free ends of the first dampers are hinged to the inner wall of the shock-absorbing box; an internal shock-absorbing mechanism is arranged between the straight pipe and the curved pipe; the internal shock-absorbing mechanism comprises a circular ring sleeved between the straight pipe and the curved pipe; a plurality of arc blocks are slidably connected on the circular ring; adjacent arc blocks are connected by second dampers; the two sides of each arc block are respectively hinged to the corresponding curved pipe and straight pipe by third dampers and fourth dampers; resistance units are arranged between adjacent fourth dampers, and the resistance units comprise fan-shaped blocks; fan-shaped grooves are provided at both ends of the fan-shaped blocks; a fan-shaped bar is slidably connected in the fan-shaped groove by a fifth damper; the free end of the fan-shaped bar is hinged to the corresponding fourth damper.

3. A shock absorbing device for pipe connection according to claim 2, characterized in that: The circumferential side of the sector block is provided with resistance grooves connected to the corresponding sector grooves; a resistance rod is rotatably connected in the resistance groove; the side wall of the resistance rod is connected to the circumferential side of the sector block through a first tension spring; the free end of the resistance rod is symmetrically connected with a clamping block and a first hook block; the second hook block is rotatably connected in the resistance groove; one end of the second hook block can be hooked with the first hook block, and the other end thereof extends into the sector groove; a fixed block is provided in the resistance groove; the second hook block and the fixed block are connected by a second tension spring; a clamping groove is provided on the inner circumference of the arc block; and a damping block is connected in the clamping groove through a sixth damper.

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