A seismic isolation device suitable for light load equipment

Abstract

The present invention provides a seismic isolation device suitable for light-load equipment, comprising an upper fixed plate, a lower fixed plate and a supporting plate, the lower fixed plate is located between the upper fixed plate and the supporting plate, a vertical elastic member is connected between the lower fixed plate and the supporting plate, the lower fixed plate is fixedly connected with a lower slide rail in the transverse direction, the lower slide rail is slidably connected with a slider, the upper fixed plate is fixedly connected with an upper slide rail in the longitudinal direction, the side of the slider facing away from the lower slide rail is slidably connected to the upper slide rail, the upper slide rail and the lower slide rail are arranged in an X shape, the slider is connected to the lower fixed plate by the lower elastic member, and the slider is connected to the upper fixed plate by the upper elastic member, so as to achieve a shock-absorbing effect on lightweight objects.

Description

Technical Field

[0001] The invention relates to the field of seismic isolation, and in particular to a seismic isolation device suitable for light-load equipment. Background Art

[0002] With the increasing popularity of building seismic isolation bearings, seismic isolation bearings isolate earthquake effects, delay the natural vibration cycle of buildings, and thus protect the upper structure. They are seismic isolation devices suitable for high-load multi-story or high-rise buildings. For example, at present, the Chinese patent with the authorization announcement number CN221118229U discloses a seismic isolation rubber bearing, including a top steel plate, a bottom steel plate, a seismic isolation bearing body, a thin steel plate, a rubber support column, a lead core, and a shock-absorbing spring. The top steel plate and the bottom steel plate are symmetrically arranged, and the seismic isolation bearing body is arranged between the top steel plate and the bottom steel plate. The seismic isolation bearing body is provided with a thin steel plate, a rubber support column, a lead core, and a shock-absorbing spring. The thin steel plate is located at the top and bottom ends of the seismic isolation bearing body, the rubber support column is located on both sides of the seismic isolation bearing body, the lead core is located at the center of the seismic isolation bearing body, and the shock-absorbing spring is located between the rubber support column and the lead core.

[0003] But at the same time, some components under light loads are not suitable for seismic isolation bearings, such as important cultural relics, optical equipment, computer room equipment units, precision processing equipment, small important testing equipment, etc. When an earthquake comes, they need to be protected by special seismic isolation devices to avoid immeasurable value loss due to earthquakes or vibrations. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a seismic isolation device suitable for light-load equipment to achieve a shock-absorbing effect on lightweight objects.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a seismic isolation device suitable for light-load equipment, comprising an upper fixed plate, a lower fixed plate and a support plate, the lower fixed plate is located between the upper fixed plate and the support plate, a vertical elastic member is connected between the lower fixed plate and the support plate, the lower fixed plate is fixedly connected with a lower slide rail in the transverse direction, the lower slide rail is slidably connected with a slider, the upper fixed plate is fixedly connected with an upper slide rail in the longitudinal direction, the side of the slider facing away from the lower rail is slidably connected to the upper slide rail, the upper slide rail and the lower slide rail are arranged in an X shape, the slider is connected to the lower fixed plate by the lower elastic member, and the slider is connected to the upper fixed plate by the upper elastic member.

[0006] To implement the above technical solution, when an earthquake occurs, due to the elastic force of the vertical elastic member, the upper elastic member and the lower elastic member, relative movement occurs between the upper fixed plate and the lower fixed plate, and relative movement occurs between the lower fixed plate and the support plate. The relative movement is smooth and there is no holding back. The vertical elastic member, the upper elastic member and the lower elastic member pull the upper fixed plate and the lower fixed plate back to their original positions to achieve a shock-absorbing effect on lightweight objects.

[0007] As a preferred solution of the present invention, an upper enclosure is fixed on the side wall of the upper fixed plate, and a lower enclosure is fixedly connected to the side wall of the lower fixed plate.

[0008] By implementing the above technical solution, foreign matter is not easy to enter between the upper fixing plate and the lower fixing plate, so that the upper fixing plate and the lower fixing plate are not easy to get stuck.

[0009] As a preferred solution of the present invention, a plurality of weight-reducing holes are provided on the surface of the upper fixing plate.

[0010] The implementation of the above technical solution reduces the overall mass of the upper fixing plate and enables the lightweight objects on the upper fixing plate to move more smoothly.

[0011] As a preferred solution of the present invention, a plurality of the vertical elastic members are provided, and the plurality of the vertical elastic members are arranged in a rectangular shape.

[0012] Implementing the above technical solution greatly improves the stability of the lower fixing plate.

[0013] As a preferred solution of the present invention, two groups of upper elastic members are provided, each group of upper elastic members is provided with a plurality of upper elastic members, the two groups of upper elastic members are respectively located on opposite sides of the slider, and the upper elastic members are arranged along the length direction of the lower sliding rail.

[0014] To implement the above technical solution, when the upper fixed plate moves along the length direction of the upper slide rail, the two groups of upper elastic members can simultaneously apply tension to the upper fixed plate, so that the force on the upper fixed plate is more even and the upper slide rail and the slider are not easily stuck.

[0015] As a preferred solution of the present invention, the lower elastic members are provided in two groups, each group of lower elastic members is provided with a plurality of lower elastic members, the two groups of lower elastic members are respectively located on opposite sides of the slider, and the lower elastic members are arranged along the length direction of the upper slide rail.

[0016] To implement the above technical solution, when the slider moves along the lower slide rail, the two groups of lower elastic members can simultaneously apply tension to the slider, so that the slider is subjected to force more evenly and the slider is not easily stuck with the lower slide rail.

[0017] As a preferred solution of the present invention, the lower fixed plate is fixedly connected to a fixed seat on one side facing the upper fixed plate, the length direction of the fixed seat is parallel to the length direction of the lower sliding rail, a sliding seat is slidably connected to the fixed seat, an auxiliary spring is connected between the sliding seat and the fixed seat, and a convex column is connected to the side wall of the slider, and the convex column is used to contact the sliding seat.

[0018] To implement the above technical solution, the slider moves along the lower slide rail toward the sliding seat, causing the protruding column to contact the sliding seat, causing the sliding seat to move along the length direction of the fixed seat, compressing the auxiliary spring, and providing the lower elastic member with a force on the slider, which can withstand greater earthquake forces and improve practicality.

[0019] As a preferred solution of the present invention, the sliding seat is slidably connected to a connecting rod along its width direction, the connecting rod and the sliding seat are connected by a connecting spring, the convex column pushes the sliding seat to move through the connecting rod, the fixed seat is fixedly connected to an inclined block, the connecting rod is fixedly connected to a connecting column for contacting with the conductive inclined surface on the inclined block, the connecting column moves along the length direction of the conductive inclined surface and separates the connecting rod from the convex column, the fixed seat is fixedly connected to a knocking rod, and the sliding seat contacts the knocking rod due to the elastic force of the auxiliary spring.

[0020] To implement the above technical solution, the slider moves along the lower slide rail toward the sliding seat, the convex column contacts the sliding seat, causing the sliding seat to move along the length direction of the fixed seat, causing the auxiliary spring to be compressed. As the slider and the sliding seat continue to move, the connecting column contacts the conductive inclined surface, causing the connecting column to move along the conductive inclined surface and separate the connecting rod from the convex column. Through the elastic force of the auxiliary spring, the sliding seat moves and contacts the knocking rod, and the knocking rod makes a sound, warning that the lower elastic member is about to reach the limit of elastic deformation.

[0021] As a preferred solution of the present invention, a locking hole is provided on the lower fixed plate, a fixed shaft is fixedly connected in the locking hole, an elastic resistance plate is sleeved on the fixed shaft, the elastic resistance plate resists against the bottom wall of the locking hole, a connecting sleeve is threadedly connected on the fixed shaft, a locking disk located in the locking hole is fixedly connected on the connecting sleeve, the connecting sleeve rotates and causes the bottom wall of the locking disk to squeeze the elastic resistance plate, so that the elastic resistance plate is deformed and the edge of the elastic resistance plate is pressed against the side wall of the locking disk, and the slider moves along the length direction of the lower rail and causes the connecting sleeve to rotate through the transmission component.

[0022] To implement the above technical solution, the slider moves along the length direction of the lower sliding rail, the auxiliary spring is compressed, the elastic force of the auxiliary spring gradually increases, the connecting sleeve is rotated through the conduction component, and the connecting sleeve moves along the axial direction of the fixed shaft, so that the locking plate moves in the direction close to the elastic resistance plate, and the bottom wall of the locking plate applies pressure to the elastic resistance plate, the elastic resistance plate is deformed and the edge of the elastic resistance plate gradually approaches the side wall of the locking plate, and after the edge of the elastic resistance plate contacts the side wall of the locking plate, energy dissipation is achieved through friction, so that the slider can withstand greater seismic force; after the knocking rod contacts the sliding seat, the side wall of the locking plate is fully in contact with the elastic resistance plate, and the locking plate can no longer rotate due to the action of friction, that is, the connecting sleeve can no longer rotate, and at the same time, the slider can no longer move, so as to avoid plastic deformation of the lower elastic member and damage to the lower elastic member.

[0023] As a preferred solution of the present invention, the transmission component includes a rack and a connecting groove, a plurality of the connecting grooves are opened on the outer wall of the connecting sleeve and are evenly distributed along the axis of the connecting sleeve, the rack is fixed on the side wall of the slider, the length direction of the rack is parallel to the length direction of the lower sliding rail, and the rack is engaged with the connecting groove.

[0024] To implement the above technical solution, during the movement of the slider, the rack moves synchronously with the slider, and the connecting sleeve rotates by meshing the rack with the connecting groove, and the rotation of the connecting sleeve is relatively stable.

[0025] In summary, the present invention has the following beneficial effects:

[0026] 1. Due to the elastic force of the vertical elastic member, the upper elastic member and the lower elastic member, relative movement occurs between the upper fixed plate and the lower fixed plate, and relative movement occurs between the lower fixed plate and the support plate. The relative movement is smooth without any tension. The vertical elastic member, the upper elastic member and the lower elastic member pull the upper fixed plate and the lower fixed plate back to their original positions to achieve a shock-absorbing effect on lightweight objects.

[0027] 2. As the slider moves along the lower slide rail, the slider drives the slide seat to move and compresses the auxiliary spring to generate elastic force, so that the slider can withstand greater earthquake forces; as the slider continues to move, the slide seat will collide with the knocking rod, and the knocking rod will make a collision sound to warn that the lower elastic part is about to reach the limit of elastic deformation; while the slider drives the slide seat to move, the elastic resistance plate and the side wall of the locking disk gradually increase the friction, producing an energy-consuming effect, so that the slider can withstand greater earthquake forces; after the collision sound, the elastic resistance plate and the side wall of the locking disk are in full contact, the locking disk cannot rotate, and the slider cannot continue to move, and the deformation limit of the lower elastic part is reached at this time, so as to avoid plastic deformation of the lower elastic part and cause damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the external structure of the present invention;

[0029] Figure 2 A schematic diagram showing the positions of the upper elastic member and the lower elastic member;

[0030] Figure 3 A schematic diagram showing the position of the fixed seat;

[0031] Figure 4 A cross-sectional schematic diagram showing a connecting sleeve;

[0032] Figure 5 A schematic diagram showing the structure of the elastic resistance plate;

[0033] Figure 6 A schematic diagram showing the position of the connecting spring.

[0034] : 11. upper fixed plate; 111. upper enclosure; 112. weight-reducing hole; 12. lower fixed plate; 121. lower enclosure; 13. support plate; 2. vertical elastic member; 31. lower slide rail; 32. slider; 33. upper slide rail; 41. lower elastic member; 42. upper elastic member; 5. fixed seat; 51. slide seat; 511. boss; 52. auxiliary spring; 53. connecting rod; 531. connecting column; 54. connecting spring; 55. inclined block; 56. knocking rod; 6. locking hole; 61. fixed shaft; 62. elastic resistance plate; 621. elastic groove; 7. connecting sleeve; 71. locking disk; 8. transmission component; 81. rack; 82. connecting groove. DETAILED DESCRIPTION

[0035] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0036] A seismic isolation device suitable for light-load equipment includes an upper fixing plate 11, a lower fixing plate 12 and a support plate 13, wherein the cross-sections of the upper fixing plate 11, the lower fixing plate 12 and the support plate 13 are all rectangular. The lower fixing plate 12 is located between the upper fixing plate 11 and the support plate 13. A vertical elastic member 2 is fixedly connected between the lower fixing plate 12 and the support plate 13, and nine vertical elastic members 2 are provided. The nine vertical elastic members 2 are arranged in a rectangular shape to provide good support for the lower fixing plate 12. The support plate 13 is fixedly connected to the ground.

[0037] The lower fixed plate 12 is fixedly connected with a lower sliding rail 31 in the transverse direction, and the lower sliding rail 31 is located on the side of the lower fixed plate 12 facing away from the support plate 13. A slider 32 is slidably connected to the lower sliding rail 31. The upper fixed plate 11 is fixedly connected with an upper sliding rail 33 in the longitudinal direction, and the side of the slider 32 facing away from the lower sliding rail 31 is slidably connected to the upper sliding rail 33. The upper sliding rail 33 and the lower sliding rail 31 are arranged in an X shape.

[0038] The slider 32 is connected to the lower fixing plate 12 via a lower elastic member 41 , and the slider 32 is connected to the upper fixing plate 11 via an upper elastic member 42 .

[0039] Two groups of upper elastic members 42 are provided, each group of upper elastic members 42 is provided with two upper elastic members, and the two groups of upper elastic members 42 are respectively located on two opposite sides of the slider 32 , and the upper elastic members 42 are arranged along the length direction of the lower sliding rail 31 .

[0040] Two groups of lower elastic members 41 are provided, each group of lower elastic members 41 is provided with two lower elastic members, and the two groups of lower elastic members 41 are respectively located on two opposite sides of the slide block 32 , and the lower elastic members 41 are arranged along the length direction of the upper slide rail 33 .

[0041] The upper elastic member 42 , the lower elastic member 41 , and the vertical elastic member 2 are tension springs.

[0042] An upper enclosure 111 is fixed to the side wall of the upper fixing plate 11, and a lower enclosure 121 is fixedly connected to the side wall of the lower fixing plate 12. Four weight-reducing holes 112 are opened on the surface of the upper fixing plate 11.

[0043] When the upper fixing plate 11 moves laterally relative to the lower fixing plate 12, the upper slide rail 33 contacts the slider 32, causing the slider 32 to move along the length direction of the lower slide rail 31. At the same time, the two groups of lower elastic members 41 apply elastic force to the slider 32 to achieve a shock-absorbing effect. When the upper fixing plate 11 moves longitudinally relative to the lower fixing plate 12, the upper slide rail 33 moves along the slider 32, and the two groups of upper elastic members 42 apply elastic force to the upper fixing plate 11 to achieve a shock-absorbing effect.

[0044] A fixing seat 5 is fixedly connected to the side of the lower fixing plate 12 facing the upper fixing plate 11. The fixing seat 5 has two fixing seats, which are respectively located on both sides of the lower lower rail 31. The length direction of the fixing seat 5 is parallel to the length direction of the lower lower rail 31. A slide seat 51 is slidably connected to the fixing seat 5, and an auxiliary spring 52 is fixedly connected between the slide seat 51 and the fixing seat 5. A convex column 511 is connected to the side wall of the slider 32, and the convex column 511 is used to contact the slide seat 51 and push the slide seat 51 to move in the direction close to the auxiliary spring 52.

[0045] The axial direction of the auxiliary spring 52 is parallel to the longitudinal direction of the lower sliding rail 31 .

[0046] When the slider 32 moves along the lower slide rail 31 to one end of the slide rail 31 , one auxiliary spring 52 is compressed; when the slider 32 moves to the other end of the slide rail 31 , the other auxiliary spring 52 is compressed.

[0047] The slide 51 is slidably connected to a connecting rod 53 along its width direction, and the connecting rod 53 slides along the longitudinal direction. The connecting rod 53 and the slide 51 are connected by a connecting spring 54. The protruding column 511 pushes the slide 51 to move through the connecting rod 53.

[0048] The fixing seat 5 is fixedly connected with an inclined block 55, which is close to the auxiliary spring 52. The connecting rod 53 is fixedly connected with a connecting column 531 for contacting with the conductive inclined surface on the inclined block 55, and the connecting column 531 moves along the length direction of the conductive inclined surface and separates the connecting rod 53 from the protruding column 511.

[0049] An iron knocking rod 56 is fixedly connected to the fixed seat 5 , and the sliding seat 51 is in conflict with the knocking rod 56 due to the elastic force of the auxiliary spring 52 .

[0050] The slider 32 moves along the lower rail 31 toward the slider 51, and the boss 511 contacts the connecting rod 53, causing the slider 51 to move along the length direction of the fixed seat 5, compressing the auxiliary spring 52. As the slider 32 and the slider 51 continue to move, the connecting column 531 contacts the conductive slope, causing the connecting column 531 to move along the conductive slope and separating the connecting rod 53 from the boss 511. The elastic force of the auxiliary spring 52 causes the slider 51 to move and contact the knocking rod 56, which makes a sound, warning the lower elastic member 41 that it is about to reach the limit of elastic deformation.

[0051] A locking hole 6 is provided on the lower fixing plate 12, and the locking hole 6 has two holes respectively located on both sides of the lower lower rail 31. A fixed shaft 61 is fixedly connected in the locking hole 6, and the fixed shaft 61 is coaxially arranged with the locking hole 6.

[0052] An elastic abutment plate 62 made of titanium metal is sleeved on the fixed shaft 61, and an elastic groove 621 is formed on the elastic abutment plate 62. The cross section of the elastic abutment plate 62 is arc-shaped. The elastic abutment plate 62 abuts against the bottom wall of the locking hole 6. A connecting sleeve 7 is threadedly connected to the fixed shaft 61, and a locking disc 71 located in the locking hole 6 is fixedly connected to the connecting sleeve 7. The locking sleeve is located outside the elastic abutment plate 62.

[0053] The connecting sleeve 7 rotates and causes the bottom wall of the locking disk 71 to press the elastic abutment plate 62 , so that the elastic abutment plate 62 is deformed and the edge of the elastic abutment plate 62 is pressed against the side wall of the locking disk 71 .

[0054] The slider 32 moves along the length direction of the lower rail 31 and causes the connecting sleeve 7 to rotate through the transmission component 8 .

[0055] The transmission component 8 includes a rack 81 and a connection groove 82. A plurality of connection grooves 82 are formed on the outer wall of the connection sleeve 7 and are evenly distributed along the axis of the connection sleeve 7. The rack 81 is fixed to the side wall of the slider 32. The length direction of the rack 81 is parallel to the length direction of the lower slide rail 31. The rack 81 is meshed with the connection groove 82.

[0056] No matter the slider 32 moves along the lower rail 31 toward one end or the other end of the lower rail 31, one connecting sleeve 7 rotates toward the direction close to the elastic resistance plate 62, and the other connecting sleeve 7 rotates toward the direction away from the resistance plate.

[0057] Of course, the above are only typical examples of the present invention. In addition, the present invention may also have many other specific implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A seismic isolation device suitable for light load equipment, comprising an upper fixing plate (11), a lower fixing plate (12) and a support plate (13), wherein the lower fixing plate (12) is located between the upper fixing plate (11) and the support plate (13), and wherein: A vertical elastic member (2) is connected between the lower fixed plate (12) and the support plate (13); the lower fixed plate (12) is fixedly connected with a lower slide rail (31) in the transverse direction; the lower slide rail (31) is slidably connected with a slider (32); the upper fixed plate (11) is fixedly connected with an upper slide rail (33) in the longitudinal direction; the slider (32) is slidably connected with the upper slide rail (33) on the side facing away from the lower slide rail (31); the upper slide rail (33) and the lower slide rail (31) are arranged in an X shape; the slider (32) is connected to the lower fixed plate (12) via a lower elastic member (41); the slider (32) is connected to the upper fixed plate (11) via an upper elastic member (42); the lower fixed plate (12) is moved toward the upper A fixed seat (5) is fixedly connected to one side of the fixed plate (11), the length direction of the fixed seat (5) is parallel to the length direction of the lower sliding rail (31), a sliding seat (51) is slidably connected to the fixed seat (5), an auxiliary spring (52) is connected between the sliding seat (51) and the fixed seat (5), a convex column (511) is connected to the side wall of the sliding block (32), the convex column (511) is used to contact the sliding seat (51), the sliding seat (51) is slidably connected to a connecting rod (53) along its width direction, the connecting rod (53) and the sliding seat (51) are connected by a connecting spring (54), the convex column (511) pushes the sliding seat (51) to move through the connecting rod (53), and the fixed seat (51) is provided with a plurality of movable members. The seat (5) is fixedly connected with an inclined block (55), the connecting rod (53) is fixedly connected with a connecting column (531) for contacting with the conductive inclined surface on the inclined block (55), the connecting column (531) moves along the length direction of the conductive inclined surface and separates the connecting rod (53) from the convex column (511), the fixed seat (5) is fixedly connected with a knocking rod (56), the sliding seat (51) contacts with the knocking rod (56) due to the elastic force of the auxiliary spring (52), the lower fixed plate (12) is provided with a locking hole (6), the locking hole (6) is fixedly connected with a fixed shaft (61), the fixed shaft (61) is sleeved with an elastic contact plate (62), the elastic contact plate (62) and the bottom of the locking hole (6) are connected. The fixing shaft (61) is threadedly connected with a connecting sleeve (7), and a locking disk (71) located in the locking hole (6) is fixedly connected to the connecting sleeve (7). The connecting sleeve (7) rotates and causes the bottom wall of the locking disk (71) to squeeze the elastic contact plate (62), so that the elastic contact plate (62) is deformed and the edge of the elastic contact plate (62) is pressed against the side wall of the locking disk (71). The sliding block (32) moves along the length direction of the lower rail (31) and causes the connecting sleeve (7) to rotate through a transmission component (8). The transmission component (8) includes a rack (81) and a connecting groove (82). A plurality of the connecting grooves (82) are arranged on the outer wall of the connecting sleeve (7) and are evenly distributed along the axis of the connecting sleeve (7).The rack (81) is fixed on the side wall of the slider (32), the length direction of the rack (81) is parallel to the length direction of the lower slide rail (31), and the rack (81) is meshed with the connecting groove (82).

2. The seismic isolation device suitable for light load equipment according to claim 1 is characterized in that: An upper enclosure (111) is fixed on the side wall of the upper fixing plate (11), and a lower enclosure (121) is fixedly connected to the side wall of the lower fixing plate (12).

3. The seismic isolation device suitable for light load equipment according to claim 2 is characterized in that: A plurality of weight-reducing holes (112) are provided on the surface of the upper fixing plate (11).

4. The seismic isolation device suitable for light load equipment according to claim 1 is characterized in that: A plurality of the vertical elastic members (2) are provided, and the plurality of the vertical elastic members (2) are arranged in a rectangular shape.

5. The seismic isolation device suitable for light load equipment according to claim 1 is characterized in that: The upper elastic members (42) are provided in two groups, each group of upper elastic members (42) is provided with a plurality of members, the two groups of upper elastic members (42) are respectively located on two opposite sides of the slider (32), and the upper elastic members (42) are arranged along the length direction of the lower sliding rail (31).

6. The seismic isolation device suitable for light load equipment according to claim 5, characterized in that: The lower elastic members (41) are provided in two groups, each group of lower elastic members (41) is provided with a plurality of lower elastic members, the two groups of lower elastic members (41) are respectively located on two opposite sides of the slide block (32), and the lower elastic members (41) are arranged along the length direction of the upper slide rail (33).

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