CN217207525U - Earthquake-resistant support with changeable natural frequency - Google Patents

Abstract

The utility model relates to the technical field of earthquake resistance, and provides an earthquake-proof support with changeable natural frequency, which is convenient for reducing the earthquake-proof burden of an upper spring and a lower spring, prolonging the service life of the upper spring and the lower spring, and has higher practicability, and comprises an upper clamp, a lower clamp and a frequency converter, wherein the upper clamp and the lower clamp are connected through bolts, the frequency converter is arranged on the upper clamp, a plurality of sliding sleeves are arranged above the frequency converter, the sliding sleeves are internally and slidably connected with sliding strips, the top ends of the sliding sleeves are slidably connected with a plurality of sliding rods, an upper fixing plate is arranged on the plurality of sliding rods, the plurality of sliding rods are fixedly connected with the sliding strips, the upper fixing plate is rotatably connected with a mounting seat, the bottom ends of the sliding sleeves are fixedly connected with a lower fixing plate through a plurality of support rods, the lower fixing plate is rotatably connected with the frequency converter, the sliding rods are sleeved with upper springs, the inner bottom walls of the sliding sleeves are fixedly connected with the bottom ends of the sliding strips through a plurality of lower springs, a plurality of gears are installed on the sliding sleeve, and a plurality of toothed belts are installed on the sliding strip.

Description

Earthquake-resistant support with changeable natural frequency

Technical Field

The utility model relates to an antidetonation technical field, concretely relates to natural frequency can change antidetonation support.

Background

As is known, the anti-seismic support limits the displacement of the attached electromechanical engineering facilities, controls the vibration of the facilities, and provides reliable protection for the electromechanical engineering facilities in the building in the earthquake.

Through retrieval, the utility model patent with patent publication number CN208735022U in 12.4.4.2019 discloses a variable fixed frequency anti-seismic support, which roughly comprises a base, a straight brace, an inclined brace, a plurality of anti-seismic members, a connecting seat and a frequency converter, wherein the anti-seismic members comprise a pulling fastener, a strong spring, a bolt and a positioning nut; draw the fastener to be the U-shaped, the bottom of drawing the fastener is equipped with the round hole that can supply the screw rod of bolt to pass, powerful spring, draw fastener and set nut to pass the screw rod of bolt in proper order, two pterygoid laminas that draw the fastener are connected with directly propping/bracing, the screw rod end and the connecting seat/base of bolt are connected, it is when using, the antidetonation component mainly leans on the elasticity of spring to the vibrations absorption, make natural frequency change through setting up the converter, thereby make building and antidetonation support and install the equipment on the antidetonation support can not produce resonance, and then guarantee that the range of rocking of antidetonation support and the equipment of installing on the antidetonation support is less, guarantee its security.

Among the foretell prior art scheme, it mainly relies on the flexible antidetonation that carries out of spring, and the spring causes the life of spring to reduce easily under long-time incessant reciprocal flexible very fast, and the practicality is lower.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a antidetonation support that natural frequency can change to it mainly leans on the flexible antidetonation that goes on of spring to solve that it proposed in the background art, and the spring causes the life of spring to subtract the very fast problem of loss easily under long-time incessant reciprocal flexible.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: an anti-seismic support with changeable natural frequency comprises an upper clamp, a lower clamp and a frequency converter, wherein the upper clamp and the lower clamp are connected through bolts, the frequency converter is installed on the upper clamp, a plurality of sliding sleeves are arranged above the frequency converter, sliding strips are connected inside the sliding sleeves in a sliding manner, a plurality of sliding rods are connected at the top ends of the sliding sleeves in a sliding manner, an upper fixing plate is installed on the plurality of sliding rods, the plurality of sliding rods are all fixedly connected with the sliding strips, the upper fixing plate is rotatably connected with an installation seat, a lower fixing plate is fixedly connected at the bottom ends of the sliding sleeves through a plurality of supporting rods, the lower fixing plate is rotatably connected with the frequency converter, upper springs are sleeved on the sliding rods, two ends of each upper spring are respectively fixedly connected with the sliding strips and the sliding sleeves, the inner bottom walls of the sliding sleeves and the bottom ends of the sliding strips are fixedly connected through a plurality of lower springs, a plurality of gears are installed on the inner side walls of the sliding sleeves, a plurality of grooves are formed in the sliding strips, toothed belts are installed inside the grooves, the gear is meshed with the toothed belt.

Preferably, the mounting base comprises a mounting plate and a positioning plate, the positioning plate is fixedly connected with the mounting plate, two rotating plates are mounted on a fixing plate located on the upper side, and the two rotating plates are rotatably connected with the positioning plate.

Furthermore, two supporting plates are mounted on the fixing plate located on the lower side, a limiting plate is arranged between the two supporting plates, the limiting plate is rotatably connected with the two supporting plates, and the limiting plate is fixedly connected with the frequency converter.

Still further, the number of the plurality of slide bars is set to two.

As a further scheme of the scheme, the sliding rod is arranged to be cylindrical.

As a further scheme of the scheme, a plurality of mounting holes are formed in the mounting plate.

On the basis of the scheme, the number of the sliding sleeves is two.

Further on the basis of aforementioned scheme, go up the clamp and all be provided with the chamfer on the clamp down.

(III) advantageous effects

Compared with the prior art, the utility model provides a changeable antidetonation support of natural frequency possesses following beneficial effect:

in the utility model, when earthquake comes, the sliding strip slides up and down in the sliding sleeve through the cooperation of the sliding sleeve, the sliding strip, the upper spring, the lower spring and the sliding rod, the anti-vibration is convenient through the elasticity of the upper spring and the lower spring, through the cooperation of the sliding strip, the gear and the toothed belt, when the sliding strip slides up in the sliding sleeve, the sliding strip drives a plurality of gears to rotate forwards, when the sliding sleeve slides down, the sliding sleeve drives a plurality of gears to rotate backwards, so that part of the vibration energy is converted into the kinetic energy of the gears, the vibration amplitude is convenient to weaken, the anti-vibration burden of the upper spring and the lower spring is convenient to reduce, the service life of the upper spring and the lower spring is prolonged, therefore, the anti-vibration support with changeable natural frequency is convenient to convert part of the vibration energy into the kinetic energy of the gears, the vibration amplitude is convenient to weaken, the anti-vibration burden of the upper spring and the lower spring is convenient to reduce, and the service life of the upper spring and the lower spring is prolonged, the practicability is high.

Drawings

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

FIG. 2 is a schematic view of a portion of the enlarged structure of FIG. 1;

FIG. 3 is a schematic view of a portion of the enlarged structure of FIG. 1 at B according to the present invention;

FIG. 4 is a schematic view of the overall three-dimensional structure of the present invention;

fig. 5 is a schematic view of the three-dimensional structure of the slide bar, the toothed belt, the gear and the like of the present invention.

In the figure: 1. an upper hoop; 2. a lower hoop; 3. a frequency converter; 4. a bolt; 5. a sliding sleeve; 6. a slide bar; 7. a slide bar; 8. an upper fixing plate; 9. a strut; 10. a lower fixing plate; 11. an upper spring; 12. a lower spring; 13. a gear; 14. a toothed belt; 15. mounting a plate; 16. positioning a plate; 17. a rotating plate; 18. a support plate; 19. a limiting plate; 20. and (7) installing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-5, an anti-seismic support with changeable natural frequency comprises an upper clamp 1, a lower clamp 2 and a frequency converter 3, wherein the frequency converter 3 is used for conveniently changing the natural frequency, reducing the shaking amplitude and improving the safety, the upper clamp 1 and the lower clamp 2 are connected through a bolt 4 for conveniently hooping an electromechanical pipeline, the frequency converter 3 is installed on the upper clamp 1, a plurality of sliding sleeves 5 are arranged above the frequency converter 3, sliding strips 6 are slidably connected inside the sliding sleeves 5, a plurality of sliding rods 7 are slidably connected to the top ends of the sliding sleeves 5, an upper fixing plate 8 is installed on the plurality of sliding rods 7, the plurality of sliding rods 7 are fixedly connected with the sliding strips 6, the upper fixing plate 8 is rotatably connected with a mounting seat for conveniently installing the anti-seismic support on a roof plate, a lower fixing plate 10 is fixedly connected to the bottom ends of the sliding sleeves 5 through a plurality of supporting rods 9, and the lower fixing plate 10 is rotatably connected with the frequency converter 3, the sliding rod 7 is sleeved with an upper spring 11, two ends of the upper spring 11 are respectively fixedly connected with the sliding strip 6 and the sliding sleeve 5, the inner bottom wall of the sliding sleeve 5 is fixedly connected with the bottom end of the sliding strip 6 through a plurality of lower springs 12, the inner side wall of the sliding sleeve 5 is provided with a plurality of gears 13, the sliding strip 6 is provided with a plurality of grooves, the grooves are internally provided with toothed belts 14, the gears 13 are meshed with the toothed belts 14, when an earthquake occurs, the sliding strip 6 slides up and down in the sliding sleeve 5, the earthquake resistance is facilitated through the elastic force of the upper springs 11 and the lower springs 12, when the sliding strip 6 slides up in the sliding sleeve 5, the gears 13 are driven to rotate forwards, when the sliding sleeve 5 slides downwards, the gears 13 are driven to rotate backwards, part of the vibration energy is converted into the kinetic energy of the gears 13, the vibration amplitude is weakened, the earthquake resistance burden of the upper springs 11 and the lower springs 12 is facilitated to be reduced, and the service lives of the upper springs 11 and the lower springs 12 are prolonged, the practicability is high.

Further, the mount pad includes mounting panel 15 and locating plate 16, and locating plate 16 and mounting panel 15 fixed connection install two rotor plates 17 on being located the fixed plate of upside, and two rotor plates 17 all rotate with locating plate 16 and are connected, are located the downside install two extension boards 18 on the fixed plate, be provided with limiting plate 19 between two extension boards 18, and limiting plate 19 rotates with two extension boards 18 and is connected, and limiting plate 19 and 3 fixed connection of converter are convenient for connect, and the number of a plurality of slide bars 7 sets up to two, and slide bar 7 sets up to cylindrical, and the slip of slide bar 7 of being convenient for has seted up a plurality of mounting holes 20 on the mounting panel 15, is convenient for install, and a plurality of sliding sleeves 5 set up to two, all are provided with the chamfer on last clamp 1 and the lower clamp 2, are convenient for improve the security.

In summary, when the anti-seismic support with changeable natural frequency is used, an electromechanical pipeline is firstly hooped by the upper hoop 1, the lower hoop 2 and the bolt 4, then the device is fixed on the roof plate through the mounting plate 15, when an earthquake happens, the sliding strip 6 slides up and down in the sliding sleeve 5, the earthquake resistance is facilitated through the elasticity of the upper spring 11 and the lower spring 12, when the slide bar 6 slides upwards in the slide sleeve 5, the plurality of gears 13 are driven to rotate forwards, when the slide sleeve 5 slides downwards, the plurality of gears 13 are driven to rotate backwards, so that part of the vibration energy is converted into the kinetic energy of the plurality of gears 13, the vibration amplitude is weakened, the anti-vibration burden of the upper spring 11 and the lower spring 12 is reduced, the service life of the upper spring 11 and the lower spring 12 is prolonged, the natural frequency is convenient to change through the frequency converter 3, the shaking amplitude is reduced, the safety is improved, and the practicability is higher.

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

Claims (8)

1. An earthquake-proof support with changeable natural frequency comprises an upper clamp (1), a lower clamp (2) and a frequency converter (3), and is characterized in that the upper clamp (1) and the lower clamp (2) are connected through a bolt (4), the frequency converter (3) is installed on the upper clamp (1), a plurality of sliding sleeves (5) are arranged above the frequency converter (3), sliding strips (6) are connected inside the sliding sleeves (5) in a sliding manner, a plurality of sliding rods (7) are connected at the top ends of the sliding sleeves (5) in a sliding manner, an upper fixing plate (8) is installed on the plurality of sliding rods (7), the plurality of sliding rods (7) are fixedly connected with the sliding strips (6), an installation seat is rotatably connected with an upper fixing plate (8), a lower fixing plate (10) is fixedly connected with the bottom end of the sliding sleeves (5) through a plurality of supporting rods (9), the lower fixing plate (10) is rotatably connected with the frequency converter (3), an upper spring (11) is sleeved on each sliding rod (7), go up the both ends of spring (11) respectively with draw runner (6) and sliding sleeve (5) fixed connection, through a plurality of lower spring (12) fixed connection between the interior diapire of sliding sleeve (5) and the bottom of draw runner (6), install a plurality of gears (13) on the inside wall of sliding sleeve (5), seted up a plurality of recesses on draw runner (6), the internally mounted of recess has cingulum (14), gear (13) and cingulum (14) mesh mutually.

2. An earthquake-resistant support with changeable natural frequency according to claim 1, characterized in that the mounting seat comprises a mounting plate (15) and a positioning plate (16), the positioning plate (16) is fixedly connected with the mounting plate (15), two rotating plates (17) are mounted on the fixing plate at the upper side, and both rotating plates (17) are rotatably connected with the positioning plate (16).

3. An earthquake-resistant support with changeable natural frequency according to claim 2, characterized in that two supporting plates (18) are mounted on the fixing plate at the lower side, a limiting plate (19) is arranged between the two supporting plates (18), the limiting plate (19) is rotatably connected with the two supporting plates (18), and the limiting plate (19) is fixedly connected with the frequency converter (3).

4. Seismic support with variable natural frequency, according to claim 3, characterized in that the number of sliding bars (7) is two.

5. Anti-seismic frame with variable natural frequency according to claim 4, characterized in that said sliding bar (7) is provided with a cylindrical shape.

6. An earthquake-resistant support with changeable natural frequency according to claim 5, characterized in that the mounting plate (15) is provided with a plurality of mounting holes (20).

7. An earthquake-resistant support with variable natural frequency according to claim 6, wherein a plurality of said sliding sleeves (5) are provided in two.

8. An earthquake-resistant support with changeable natural frequency according to claim 7, characterized in that the upper clamp (1) and the lower clamp (2) are provided with chamfers.

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