Shock absorption device for water supply and drainage pipeline

Abstract

The utility model relates to the technical field of water supply and drainage pipeline earthquake resistance, in particular to a water supply and drainage pipeline earthquake-proof device which comprises a corrugated pipe, an earthquake-proof adjusting mechanism, a response hanging bracket, a matching support, a first outer pipe and a second outer pipe. The matched support and the response hanging bracket jointly divide independent waveform compensation sections from the pipeline, random displacement vectors of earthquake response are synchronously absorbed under cooperative limiting of the shock absorption adjusting mechanism, the hard pipeline is protected against damage, and flexible shock absorption is achieved. The utility model provides a practical shock-proof solution for the water supply and drainage pipeline on a building control layer, not only adapts to the normalized vibration control requirement of a pipeline system, but also matches the earthquake fortification requirement under small probability, and has the advantages of simple and compact structure, high overall cost performance and convenience in installation and maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of earthquake resistance of water supply and drainage pipelines, and in particular provides a shock-absorbing device for water supply and drainage pipelines. Background Art

[0002] With the implementation of T / CECS1234-2023 technical standard for dual control of vibration in building projects, water supply and drainage pipelines at the building control layer must meet the requirements of normalized vibration control and earthquake protection under low probability. However, the products corresponding to the existing JG / T541-2017 building seismic isolation flexible pipe standard only solve the requirements for pipelines passing through the seismic isolation layer to adapt to earthquake horizontal displacement, and the material cost is high and the service life is short. Therefore, there is an urgent need for a solution that adapts to the development needs of seismic isolation and has a better cost-effectiveness. The utility model provides a water supply and drainage pipeline seismic isolation device to make up for the need. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a water supply and drainage pipeline shock-absorbing device, which meets the normalized vibration control requirements of the water supply and drainage pipeline in the building control layer and the earthquake protection requirements under low probability.

[0004] The utility model is implemented in this way, providing a water supply and drainage pipeline shock-absorbing device, including a corrugated pipe, a shock-absorbing adjustment mechanism, a response hanger, a matching bracket, a first outer pipe and a second outer pipe, the corrugated pipe includes a first straight section connected in sequence, a corrugated section symmetrically arranged on the middle double-wave trough as the center, and a second straight section, the shock-absorbing adjustment mechanism includes two sets of shock-absorbing adjustment components symmetrically arranged on the corrugated pipe up and down and a ring plate sleeved on the middle double-wave trough of the corrugated section with clearance matching, the shock-absorbing adjustment component includes an adjustment rod, six limit rings and two vertical plates, two The vertical plates are respectively fixed to the first straight section and the second straight section, the adjusting rod passes through the ring plate and the two vertical plates, the six limiting rings are divided into three groups, the two limiting rings in each group are respectively fixed on the ring plate and the adjusting rods on both sides of each vertical plate at a certain distance, the end of the first straight section away from the corrugated section is fixedly connected to the first outer tube, the end of the second straight section away from the corrugated section is fixedly connected to the second outer tube, the response hanger anchored to the upper structure is fixedly connected to the first straight section or the first outer tube, and the matching bracket anchored to the lower structure is fixedly connected to the second straight section or the second outer tube.

[0005] Preferably, the corrugated tube is pre-stretched to no more than 50% of its original length during assembly.

[0006] Further preferably, the corrugated section takes its mid-point double-wave trough as the symmetry center, has n straight sections on both sides spaced n-1 single waves, and the outermost sides on both sides are continuous multiple waves.

[0007] Further preferably, the distance S1 between the limit rings on both sides of the vertical plate is much larger than the distance S2 between the limit rings on both sides of the ring plate, and the aperture D1 of the vertical plate is larger than the outer diameter D2 of the adjustment rod.

[0008] Further preferably, the response hanger includes two hanging columns and a hanging crossarm, both ends of the hanging crossarm are connected to the lower ends of the two hanging columns, the upper ends of the two hanging columns are provided with upper anchor plates, the upper anchor plates are anchored to the upper structure, the first straight section or the first outer tube is fixedly connected to the hanging crossarm, and the plumb line net distance S4 between the lower edge of the hanging crossarm and the upper edge of the limiting ring arranged on the adjusting rod below is not less than 5 mm.

[0009] Further preferably, the mating bracket includes two pillars and a supporting crossarm, both ends of the supporting crossarm are connected to the upper ends of the two pillars, lower ends of the two pillars are provided with lower anchor plates, the lower anchor plates are anchored to the lower structure, the second straight section or the second outer tube is fixedly connected to the supporting crossarm, and the plumb line net distance S5 between the lower edge of the supporting crossarm and the upper edge of the limiting ring arranged on the adjusting rod below is not less than 5 mm.

[0010] Further preferably, the hanging columns, hanging cross arms, pillars and supporting cross arms are angle steel type or channel steel type.

[0011] Further preferably, the first outer tube is connected to the first straight section of the corrugated tube through a flange joint, and the second outer tube is connected to the second straight section of the corrugated tube through a flange joint, and the plumb line net distance S3 between the upper outer edge or the lower outer edge of the flange joint and the outer edge of the limit ring on the adjusting rod arranged above or below the corrugated tube is not less than 5 mm.

[0012] Further preferably, the flange joint comprises a pair of flanges of the same material or different materials, a flange sealing gasket, a plurality of bolts and nuts, and the flange is in the form of a fixed or loose sleeve.

[0013] Further preferably, the adjustment rod is a solid rod or a hollow rod, the two adjustment rods are installed and applied in an orientation parallel to the plumb plane, and the adjustment rod and the limit ring are fixedly sleeved or threadedly connected.

[0014] Further preferably, after the water supply and drainage pipeline is filled with fluid, the downward deflection of the corrugated pipe between the pipeline span formed by the response hanger and the matching bracket is less than 1 / 20 of the nominal diameter of the corrugated pipe.

[0015] Further preferably, the upper structure and the lower structure are the upper structure and the lower structure of the seismic isolation layer of a seismic isolation building or the upper structure and the lower structure of the control layer of a vibration-vibration dual-control building.

[0016] Compared with the prior art, the advantages of the utility model are:

[0017] The utility model provides a shock-absorbing device for water supply and drainage pipelines, which provides a practical shock-absorbing solution for the water supply and drainage pipelines of buildings in the control layer or the shock-isolating layer, which can meet the normalized vibration control requirements of the pipeline system and match the earthquake protection requirements under low probability. It has a simple and compact structure, high overall cost performance, and is easy to install and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation methods:

[0019] Figure 1 This is a schematic structural diagram of a water supply and drainage pipeline shock-absorbing device according to Example 1.

[0020] Figure 2 yes Figure 1 AA view in .

[0021] Figure 3 This is a schematic diagram of the angle steel response hanger installation.

[0022] Figure 4 This is a schematic diagram of the installation of the channel steel type matching bracket.

[0023] In the figure: 1-corrugated tube, 101-corrugated section, 102-first straight section, 103-second straight section; 2-shock-absorbing adjustment mechanism, 201-adjusting rod, 202-limiting ring, 203-ring plate, 204-vertical plate, 2011-D2, 2041-D1; 3-response hanger, 301-hanging column, 302-hanging cross arm, 3011-upper anchor plate; 4-matching bracket, 401-pillar, 402-supporting cross arm, 4011-lower anchor plate; 5-first outer tube; 6-second outer tube; 7-flange joint; 8-upper structure; 9-lower structure; 10-S1; 11-S2; 12-S3; 13-S4; 14-S5. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] Embodiment 1,

[0026] like Figure 1-Figure 4 As shown, this embodiment provides a water supply and drainage pipeline shock-absorbing device, which is installed and applied in the control layer of a public building in a city with a magnitude 9 earthquake protection.

[0027] The water supply and drainage pipeline shock-absorbing device in this embodiment is composed of a corrugated tube 1, two sets of shock-absorbing adjustment mechanisms 2, a response hanger 3, a matching bracket 4, a first outer tube 5, a second outer tube 6 and two sets of flange joints 7. The corrugated tube 1 includes a first straight section 102, a corrugated section 101 symmetrically arranged with the middle double-wave trough as the center, and a second straight section 103 connected in sequence; the assembly pre-stretching amount of the corrugated tube 1 is 25% of the original length, and the corrugated section 101 is symmetrically arranged with the middle double-wave trough as the center, with three straight sections on both sides and two single waves spaced apart, and is composed of eight consecutive waves located at the outermost sides.

[0028] The two sets of shock-absorbing adjustment mechanisms 2 in this example are symmetrically arranged on the corrugated tube 1, including a shock-absorbing adjustment assembly and a ring plate 203 that is sleeved on the double-wave trough in the middle of the corrugated section 101 with clearance fit. The shock-absorbing adjustment assembly includes an adjustment rod 201, six limit rings 202 and two vertical plates 204, the two vertical plates 204 are welded and fixed on the first straight section 102 and the second straight section 103 respectively, the adjustment rod 201 is axially penetrated through the holes of the ring plate 203 and the two vertical plates 204, the six limit rings 202 are divided into three groups, and the two limit rings 202 in each group are respectively fixed on the ring plate 203 and the adjustment rod 201 on both sides of each vertical plate 204. The distance S110 between the limiting rings 202 on both sides of the vertical plate 204 is 250mm, and the distance S211 between the limiting rings 202 on both sides of the ring plate 203 is 6mm. At the same time, the aperture D12041 of the vertical plate 204 is 4mm larger than the outer diameter D22011 of the adjustment rod 201 made of seamless steel pipe. The orientation of the two adjustment rods 201 is one day and one ground, and they are parallel to the plumb line up and down, and are fixedly connected to the limiting rings 202 by welding.

[0029] The above-mentioned clearance-fitting ring plate 203 is sleeved on the double-wave trough in the middle of the corrugated section 101. In this example, it not only strengthens the overall rigidity to prevent excessive deflection in the full water state from affecting the shock-absorbing function, but also cooperates with the shock-absorbing adjustment component to ensure that the various corrugations of the corrugated tube 101 are evenly deformed under any displacement of the environmental input.

[0030] The pipeline shock-absorbing device is located between the upper structure 8 and the lower structure 9 of the building control layer. In this example, the response hanger 3 anchored to the upper structure 8 is responsible for introducing the seismic response of the upper structure of the building, and is fixed to the pipeline from the first straight section 102 by U-shaped bolts; the matching bracket 4 is anchored to the lower structure 9 of the control layer, and the pipeline is fixed by U-shaped bolts from the second straight section 103; the matching bracket 4 and the response hanger 3 jointly divide an independent corrugated compensation section that can absorb linear displacement and angular displacement in any direction from the pipeline; the end of the first straight section 102 away from the corrugated section 101 is fixedly connected to the first outer tube 5 by a flange joint 7; the end of the second straight section 103 away from the corrugated section 101 is fixedly connected to the second outer tube 6 by a flange joint 7.

[0031] This embodiment adopts an angle steel response hanger 3, which is welded by two hanging columns 301 and a hanging cross arm 302 to form a fixed frame, with an opening facing upward. The upper anchor plate 3011 welded to the upper end of the hanging column 301 is anchored to the upper structure 8 by rear anchor bolts, and the plumb line net distance S413 between the lower edge of the hanging cross arm 302 and the upper edge of the limit ring 202 arranged on the adjusting rod 201 below is controlled at 12 mm.

[0032] This embodiment adopts a channel steel type matching bracket 4, which is welded by two pillars 401 and a supporting cross arm 401 to form a fixed frame with an opening facing downward. The lower anchor plate 4011 welded at the lower end of the pillar 401 is anchored to the lower structure 9 by rear anchor bolts. The plumb line net distance S514 between the lower edge of the supporting cross arm 402 and the upper edge of the limiting ring 202 arranged on the adjusting rod 201 below is controlled at 12 mm.

[0033] In this embodiment, the two sets of flange joints 7 respectively include a pair of flanges of different materials, a flange gasket, a plurality of bolts and nuts. One of the flanges of the flange joint 7 connecting the first outer tube 5 and the first straight section 102 is a loose flange; the two flanges of the flange joint 7 connecting the second outer tube 6 and the second straight section 103 are both fixed flanges. The plumb line clearance S312 between the upper outer edge or the lower outer edge of the flange joint 7 designed in this embodiment and the outer edge of the limit ring 202 on the adjusting rod 201 arranged above or below the corrugated tube 1 is greater than 10 mm.

[0034] This embodiment strictly controls the pipeline span formed by the support and hanger, so that after the pipeline is filled with fluid, the downward deflection of the middle part of the pipeline span formed by the response hanger 3 and the matching bracket 4 is less than 1 / 20 of the nominal diameter of the corrugated tube 1.

[0035] Under the action of accidental earthquake motion, i.e., earthquake working condition, the response of the upper structure 8, i.e., the above-ground part of the entire building, in this example is like a person doing ice skating, sliding to any position on the ground in a horizontal circle with the foot position as the center and the maximum response displacement as the radius, and randomly switching directions according to the response cycle. At this time, the water supply and drainage pipeline shock-absorbing device in this example introduces the earthquake response from the upper structure 8 through the response hanger 3; the supporting bracket 4 is anchored to the lower structure 9, i.e., the relatively immovable part below the ground, and together with the response hanger 3, separates an independent waveform compensation section from the pipeline that can absorb any linear displacement and angular displacement; the two sets of shock-absorbing adjustment mechanisms 2 cooperate with the independently deformed waveform compensation sections, with the response cycle as the rhythm and the randomly changing response displacement and direction as the deformation vector, to continuously absorb the high-amplitude and low-frequency external displacement on the compensation pipeline. The large mass of the entire building above the ground dissipates the huge seismic energy by continuously moving smoothly in all directions like skating. At the same time, the water supply and drainage pipe system installed in the building moves synchronously with the building to continuously absorb the corresponding displacement and flexibly absorb shock, protecting the hard pipe materials from being forcibly damaged by the large deformation of the building structure due to the earthquake.

[0036] Under normal engineering vibration, no matter the vibration acts on the upper structure 8 or the lower structure 9 of the building control layer, the allowable range of the absorption capacity of the water supply and drainage pipeline shock absorber in this example is extremely small, and does not affect the daily safe operation of the water supply and drainage pipeline.

[0037] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein, including technical terms and scientific terms, have the same meaning as the general understanding of ordinary technicians in the field to which the utility model belongs. It should also be understood that those terms such as those defined in general dictionaries should be understood to have the same meaning as the meaning in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0038] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A water supply and drainage pipeline shock-absorbing device, characterized in that: The invention comprises a corrugated tube (1), a shock-absorbing adjustment mechanism (2), a response hanger (3), a matching bracket (4), a first outer tube (5) and a second outer tube (6); the corrugated tube (1) comprises a first straight section (102), a corrugated section (101) symmetrically arranged with a mid-position double-wave trough as the center, and a second straight section (103) connected in sequence; the shock-absorbing adjustment mechanism (2) comprises two sets of shock-absorbing adjustment components symmetrically arranged on the corrugated tube (1) and a ring plate (203) sleeved on the mid-position double-wave trough of the corrugated section (101) with clearance fit; the shock-absorbing adjustment component comprises an adjustment rod (201), six limit rings (202) and two vertical plates (204); the two vertical plates (204) are respectively fixed to the first straight section (102) and the second straight section (103); The whole rod (201) passes through the ring plate (203) and the two vertical plates (204); the six limiting rings (202) are divided into three groups; the two limiting rings (202) in each group are respectively fixed on the adjusting rod (201) on both sides of the ring plate (203) and each vertical plate (204) at a certain distance; the end of the first straight section (102) away from the corrugated section (101) is fixedly connected to the first outer tube (5); the end of the second straight section (103) away from the corrugated section (101) is fixedly connected to the second outer tube (6); the response hanger (3) anchored to the upper structure (8) is fixedly connected to the first straight section (102) or the first outer tube (5); and the matching bracket (4) anchored to the lower structure (9) is fixedly connected to the second straight section (103) or the second outer tube (6).

2. The water supply and drainage pipeline shock-absorbing device according to claim 1, characterized in that: The corrugated tube (1) is pre-stretched to a length not exceeding 50% of the original length during assembly.

3. The water supply and drainage pipeline shock-absorbing device according to claim 1, characterized in that: The corrugated section (101) has a mid-point double-wave trough as a symmetric center, with n straight sections on both sides spaced n-1 single waves, and the outermost sides on both sides are continuous multiple waves.

4. The water supply and drainage pipeline shock-absorbing device according to claim 1, characterized in that: The distance S1 (10) between the limit rings (202) located on both sides of the vertical plate (204) is much greater than the distance S2 (11) between the limit rings (202) located on both sides of the ring plate (203), and the aperture D1 (2041) of the vertical plate (204) is greater than the outer diameter D2 (2011) of the adjustment rod (201).

5. The water supply and drainage pipeline shock-absorbing device according to claim 1, characterized in that: The response hanger (3) comprises two suspension columns (301) and a suspension cross arm (302), the two ends of the suspension cross arm (302) are connected to the lower ends of the two suspension columns (301), the upper ends of the two suspension columns (301) are provided with upper anchor plates (3011), the upper anchor plates (3011) are anchored to the upper structure (8), the first straight section (102) or the first outer tube (5) is fixedly connected to the suspension cross arm (302), and the plumb line net distance S4 (13) between the lower edge of the suspension cross arm (302) and the upper edge of the limit ring (202) arranged on the adjusting rod (201) below is not less than 5 mm.

6. The water supply and drainage pipeline shock-absorbing device according to claim 1, characterized in that: The matching bracket (4) comprises two pillars (401) and a supporting cross arm (402), the two ends of the supporting cross arm (402) are connected to the upper ends of the two pillars (401), the lower ends of the two pillars (401) are provided with lower anchor plates (4011), the lower anchor plates (4011) are anchored to the lower structure (9), the second straight section (103) or the second outer tube (6) is fixedly connected to the supporting cross arm (402), and the plumb line net distance S5 (14) between the lower edge of the supporting cross arm (402) and the upper edge of the limiting ring (202) arranged on the adjusting rod (201) below is not less than 5 mm.

7. The water supply and drainage pipeline shock-absorbing device according to claim 1, characterized in that: The first outer tube (5) is connected to the first straight section (102) of the corrugated tube (1) via a flange joint (7), and the second outer tube (6) is connected to the second straight section (103) of the corrugated tube (1) via a flange joint (7), and the plumb line clearance S3 (12) between the upper outer edge or the lower outer edge of the flange joint (7) and the outer edge of the limit ring (202) on the adjustment rod (201) arranged above or below the corrugated tube (1) is not less than 5 mm.

8. The water supply and drainage pipeline shock-absorbing device according to claim 1, characterized in that: The adjustment rod (201) is a solid rod or a hollow rod. The two adjustment rods (201) are installed and applied in an orientation parallel to the plumb line. The adjustment rod (201) and the limit ring (202) are fixedly sleeved or threadedly connected.

9. The water supply and drainage pipeline shock-absorbing device according to claim 1, characterized in that: After the water supply and drainage pipeline is filled with fluid, the downward deflection of the corrugated pipe (1) between the pipeline span formed by the response hanger (3) and the matching bracket (4) is less than 1 / 20 of the nominal diameter of the corrugated pipe (1).

10. The water supply and drainage pipeline shock-absorbing device according to claim 1, characterized in that: The upper structure (8) and the lower structure (9) are the upper structure and lower structure of the seismic isolation layer of a seismic isolation building or the upper structure and lower structure of the control layer of a vibration-vibration dual-control building.

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