WO2017129078A1 - Seismic isolation elastic restoring mechanism with pre-set starting load and starting control seismic isolation device - Google Patents

Abstract

Disclosed are a seismic isolation elastic restoring mechanism with a pre-set starting load and a starting control seismic isolation device. The seismic isolation elastic restoring mechanism comprises a guide rod (13), stop blocks (15), and a pre-set starting load elastic unit. There are at least two of the stop blocks (15), and the stop blocks (15) are sleeved on the guide rod (13). The pre-set starting load elastic unit is provided with a helical steel spring (12); the helical steel spring (12) is sleeved on the guide rod (13) and is located between the stop blocks (15), and the helical steel spring (12) is a pre-compressed helical steel spring and has a pre-compressed length. Since the pre-set starting load exists, starting can begin only after an external load produced by a seism is higher than the pre-set starting load, and thereby the seismic isolation elastic restoring mechanism has a function of pre-setting the starting load.

Description

Seismic isolation elastic reset mechanism and start control isolation device with preset starting load Technical field

The invention relates to equipment in the field of earthquake resistance, in particular to a vibration isolation elastic reset mechanism and a start control isolation device which are preset starting loads.

Background technique

As the most representative innovative structural seismic technology in the last century, the damping control technology provides new means and research direction for engineering earthquake disaster reduction.

The horizontal isolation structure system is divided into three parts: the upper structure, the isolation layer and the lower structure. The seismic energy is transmitted to the isolation layer through the lower structure, and is absorbed and consumed by the isolation device of the isolation layer. After the seismic energy, only a small part of the energy is transferred to the superstructure. The setting of the isolation layer changes the natural vibration period of the superstructure, reduces the seismic response of the structure, and ensures that the superstructure can remain in an elastic state during a large earthquake or remain in an initial state of elastoplastic deformation.

Different from engineering isolation, equipment isolation has a lightening effect on the seismic input due to the light weight of the protected object, and the deformation capability of the equipment isolation device is limited by the size of the device. The starting condition of the device and the ability of the device to resist excessive earthquakes in the isolation of the equipment become particularly prominent.

The company, Foshan Baianju Shock Absorption Technology Co., Ltd. has successfully applied for the patent of the equipment for isolation of the natural rubber bearing as the elastic reset device. The patent number is ZL201420209702.6. The protected equipment or cultural relics using the isolation device can be greatly reduced in response to earthquakes, thereby protecting its safety under earthquake action. However, this patent still has three problems that are not well solved. One is the durability problem of the rubber elastic reset device, the reset function of the two elastic reset devices is also flawed, and the third is the startup problem of the device.

Under normal circumstances, the deformation of the isolation device will increase with the increase of the seismic intensity, and the deformation space of some isolation devices will be limited. For example, the cultural relics in the showcase can protect the safety of such objects under strong earthquakes. A big problem.

Summary of the invention

One of the objects of the present invention is to provide a shock isolation elastic reset mechanism that presets a starting load. The isolated elastic reset mechanism has a preset starting load, and starts when the external load generated by the vibration is greater than a preset starting load.

The above object of the present invention is achieved by the following technical solution: a shock isolation elastic reset mechanism that presets a starting load, wherein the seismic isolation elastic reset mechanism comprises a guide rod, a stopper and a preset starting load elastic unit, The block is at least two, the block sleeve Mounted on the guide rod, the preset starting load elastic unit has a spiral steel spring, the spiral steel spring is set on the guiding rod and is located between the blocks, and the spiral steel spring is preloaded The spiral steel spring has a preloading length, and a preset starting load exists. When the external load generated by the vibration is greater than the preset starting load, the starting is started, so that the isolated elastic resetting mechanism has a function of a preset starting load.

In the seismic isolation elastic reset mechanism of the present invention, a steel spring assembly or a steel spring device is preferably used, and the pre-compression deformation of the spiral steel spring is used to store the preset starting load.

The seismic isolation elastic reset mechanism of the present invention may be a horizontal isolation elastic reset mechanism or a vertical isolation elastic reset mechanism, and the principle and process of the preset start load are the same, when it is a horizontal isolation elastic reset mechanism, The following three structures can be used:

Structure 1: The seismic isolation elastic reset mechanism is a horizontal isolation elastic reset mechanism, which can realize horizontal isolation, the guide rod is horizontally arranged, and the two blocks are respectively arranged at two ends of the guide rod. The preset starting load elastic unit further includes a pull rod and a first sliding block, the first sliding sleeve is set in the middle of the guiding rod, the spiral steel spring is one, and the spiral steel spring passes through the first sliding block. The two ends of the spiral steel spring are respectively in contact with the two blocks, and the two pull rods are located on the left and right sides of the first slider, and the two ends of the pull rod are respectively opposite to the block and the first slider. Connected, the spiral steel spring has a preloading length L1.

The pre-compression length L1 is 50 to 500 mm.

In this structure, the spiral steel spring passes through the middle of the slider and is pre-stressed at the initial stage. The pre-pressure is determined by meeting the equipment reset, starting control load and project requirements. When the spiral steel spring is working, the one end pull rod moves the stopper by the movement of the slider, thereby compressing the spiral steel spring to provide elastic reset, and the other end pull rod is in a relaxed state. A surface of the stopper, the tie rod and the slider are adhered with a layer of elastic buffer to reduce impact and noise during the movement.

In the above structure, when the tie rod is replaced by a stranded wire, the first slider can be eliminated, one end of the stranded wire is connected to the stopper, and the other end is fixed to the panel.

Structure 2: The seismic isolation elastic reset mechanism is a horizontal isolation elastic reset mechanism, which can realize horizontal isolation, the guide rod is horizontally disposed, and the two blocks are respectively disposed at two ends of the guide rod. The preset starting load elastic unit further includes a pull rod and a first sliding block, the first sliding block is set in the middle of the guiding rod, and the spiral steel spring is two in the same structure, respectively located in the first sliding block On the left and right sides, one end of the spiral steel spring passes through the first slider, and the other end is in contact with the stopper. The tie rods are four, and two on the left and right sides of the first slider, and the two ends of the rod are respectively The spiral steel spring has a preloading length L2 connected to the stopper and the first slider.

The pre-compression length L2 is 25 mm to 250 mm, and the length of L2 is one-half of L1.

The horizontal isolation elastic returning mechanism of the invention is realized by pre-pressing the steel spring, the seismic isolation elastic resetting mechanism can also be self-damped, and the damping fluid can be disposed in the guiding rod. As a preferred embodiment, the invention can be improved as follows: The guiding rod is a round rod, and the guiding rod is a damping groove is arranged in the axial direction, and the damping groove is filled with a viscous damping liquid, and the damping shearing sleeve can be disposed in the stopper or in the first sliding block, as a preferred solution, A damping shear sleeve is directly embedded in a slider, the damping shear sleeve has a shearing blade, and the shearing blade extends into a viscous damping fluid in the damping groove, the stopper or the first When the slider slides along the axial direction of the guide rod, it is hindered by the damping force, thereby further improving the isolation capability of the seismic isolation elastic reset mechanism.

As another implementation of the damping, the damping block may be selected as a damping block, and the damping block and the guiding rod form a damping pair, and the damping form may be friction damping or viscous damping, further improving the isolation of the isolation elastic reset mechanism. Earthquake ability.

Structure 3: The seismic isolation elastic reset mechanism is a horizontal isolation elastic reset mechanism capable of horizontal isolation, the guide rod is horizontally disposed, and the preset start load elastic unit further includes a steel strand and a second a slider, the second slider is set in the middle of the guide bar, the block is four blocks, two blocks are respectively set at the two ends of the guide bar, and the other two blocks are respectively set in the middle of the guide bar, and The second sliding block is in contact with each other, and the spiral steel springs are two of the same structure, respectively located on the left and right sides of the second sliding block, and the two ends of the spiral steel spring respectively interfere with the corresponding two blocking blocks The steel strands are at least four, and are located on the left and right sides of the second slider. The two ends of the steel strand are respectively connected with the corresponding two blocks, and the steel strands are used for coupling. A stopper at both ends of the spiral steel spring, the spiral steel spring having a preloading length L3.

The pre-compression length L3 is 25 mm to 300 mm.

When the isolation elastic returning mechanism is a vertical isolation elastic returning mechanism, the specific structure is as follows: the isolated elastic restoring mechanism is a vertical isolation elastic reset mechanism, which can realize vertical isolation, the guide rod Vertically disposed, the two blocks are respectively disposed at two ends of the guide bar, and the preset starting load elastic unit further includes a steel strand, and the spiral steel spring is one, the The steel strands are at least two, and the two ends of the steel strands are respectively connected with two stoppers, and the steel strands are used for connecting the stoppers at both ends of the spiral steel spring, and the spiral steel spring has a preloading length L4. .

The pre-compression length L4 is 30 mm to 150 mm.

The invention has a layer of elastic buffer sheet attached to the stopper to reduce the impact during the movement.

The second object of the present invention is to provide a starting control isolation device with a preset starting load. The starting control isolation device has a preset starting load, and the starting load is started when the external load generated by the vibration is greater than the preset starting load, which can greatly Reduce the response of protected equipment or cultural relics under earthquakes, thus protecting the safety of equipment or cultural relics under earthquakes.

The object of the present invention is achieved by the following technical solution: a start-up control isolation device that presets a starting load, including the horizontal isolation elastic return mechanism described above, the device further comprising an upper panel, a lower panel and a middle frame, The panel is used to support the protected equipment, the middle frame is a hollow frame, the middle frame is located between the upper panel and the lower panel, and is respectively connected with the upper panel and the lower panel, and the lower panel is used for placing on the floor panel, the showcase panel or the ground. The two upper horizontal rails are disposed laterally between the lower portion of the upper panel and the upper portion of the middle frame, and two longitudinal rail pairs, lateral rail pairs and longitudinal rails are longitudinally disposed between the lower panel portion and the lower portion of the middle frame The auxiliary pair is disposed at the peripheral edge of the middle frame, the lateral guide rail supports the upper panel, and the longitudinal guide rail supports the upper panel, so that the isolation device has a good anti-overturning function, and the isolation device passes through the double-layer bidirectional guide rail. It is also possible to achieve any horizontal movement, characterized in that the horizontally isolated elastic resetting mechanism is disposed in the middle frame and coupled to the corresponding upper or lower panel.

The horizontal isolation elastic returning mechanism of the invention is arranged in the middle frame of the device, and can adopt various setting manners, such as horizontal horizontal and vertical setting; the middle frame can be changed into two intermediate connecting plates, and the upper panel is connected with one of the intermediate plates Two parallel horizontal guide rail pairs and one set of horizontal horizontal isolation elastic reset mechanism are arranged between the plates, and two parallel longitudinal guide rail pairs and one set of longitudinal horizontal isolation elastic reset mechanism are disposed between the lower panel and the other intermediate joint plate, two The intermediate connecting plate is integrally connected by bolts, and the guide rail pair can be selected by using a cross roller guide rail, a roller linear guide rail, a ball linear guide rail or a sliding guide rail pair; the horizontal isolation elastic reset mechanism can also be horizontally arranged obliquely. The guide rail pair is also arranged horizontally obliquely, parallel to the horizontal isolation elastic reset mechanism, and the following structure can be adopted:

When the horizontally-isolated elastic restoring mechanism of the present invention is disposed in the middle frame in the lateral direction and the longitudinal direction, the specific structure is that the horizontally-isolated elastic restoring mechanism is disposed in the middle frame in the lateral direction and the longitudinal direction, and is laterally And at least one set of each of the longitudinal direction, the horizontally disposed horizontal isolation elastic returning mechanism is erected on the middle frame, and is coupled with the upper panel by a corresponding slider, and longitudinally erecting the horizontally-separated horizontal isolation elastic return mechanism On the middle frame, and connected to the lower panel by a corresponding slider, the horizontal isolation elastic reset mechanism has a preset starting load, and the external load generated by the vibration is greater than the preset starting load. Start-up and has the ability to move in accordance with the deformation of the isolation layer.

As one of the preferred embodiments of the present invention, the horizontal isolation elastic return mechanism is provided in a set in the lateral direction and the longitudinal direction, and two sets of horizontal isolation elastic return mechanisms are orthogonally disposed in the middle frame in the lateral direction and the longitudinal direction.

As a second preferred embodiment of the present invention, the horizontal isolation elastic returning mechanism has two sets in the lateral direction and the longitudinal direction, and four sets of horizontal isolation elastic returning mechanisms are vertically arranged in the horizontal direction and the longitudinal direction, and are arranged in a trapezoidal shape. Inside the frame.

The device of the invention can realize horizontal isolation due to the built-in horizontal isolation elastic reset mechanism.

The invention can also be modified as follows: the middle frame is a combined frame composed of two intermediate link plates, and the two lateral guide rail pairs are disposed between the lower portion of the upper panel and the upper portion of an intermediate coupling plate located above The two longitudinal rail pairs are disposed between an upper portion of the lower panel and a lower portion of an intermediate connecting plate located below, and the horizontal rail pair and the longitudinal rail pair are respectively disposed at peripheral positions of the upper panel and the lower panel The two intermediate connecting plates are coupled by bolts, and the horizontally disposed horizontally-isolated elastic restoring mechanism is laterally disposed between the lower portion of the upper panel and an upper intermediate plate portion located above, the longitudinally disposed horizontal partition The seismic elastic returning mechanism is longitudinally disposed between the lower plate portion and the lower intermediate plate upper plate portion, and the horizontal isolation elastic returning mechanism and the corresponding intermediate connecting plate are coupled by corresponding sliders, and the horizontal isolation elastic reset mechanism and the corresponding On The panel or the lower panel is coupled by a corresponding guide rod.

The guide rail pair and the horizontal isolation elastic reset mechanism provided in the start-control isolation device of the present invention can adopt an oblique orthogonal structure. In this case, the device of the present invention can adopt the following structure: the device includes an upper panel, a lower panel, and an upper panel. Two sets of oblique orthogonal guide rail pairs are disposed between the lower panel and the lower panel, wherein the horizontal isolation elastic reset mechanism is two sets, and two sets of horizontal isolation elastic return mechanisms are diagonally arranged orthogonally on the upper panel and the lower panel. Between the panels, a set of horizontal isolation elastic reset mechanism is connected with the upper panel, and another set of horizontal isolation elastic reset mechanism is coupled with the lower panel, and two sets of horizontal isolation elastic reset mechanisms are connected by corresponding sliders, The horizontally-isolated elastic reset mechanism has a preset starting load through a slider, and the external starting load generated by the vibration is started before the external load is greater than the preset starting load, and is adapted to the deformation of the isolation layer. Ability to exercise. As a preferred embodiment of the present invention, the four sets of the above-mentioned vibration isolation devices are integrally connected by a connecting rod, and a horizontal vibration isolation function can be realized.

As an improvement of the present invention, the device of the present invention can further add a vertical isolation elastic reset mechanism, and the horizontal isolation elastic return mechanism and the vertical isolation elastic reset mechanism together constitute a seismic isolation elastic reset device of the device, which can be combined to realize vertical direction. And horizontal three-dimensional isolation, horizontal isolation elastic reset mechanism and vertical isolation elastic reset mechanism can be used to achieve vertical isolation and horizontal isolation, thus ensuring the safety of protected equipment or cultural relics during earthquakes.

The device further includes a lower coupling plate and a vertical isolation elastic reset mechanism, the lower coupling plate is mounted on the upper plate, and the vertical isolation elastic reset mechanism includes a guide rod, a stopper, and a spiral steel spring And the steel strand, the guide rod is vertically disposed, the two blocks are respectively disposed at two ends of the guide rod, and the bottom end of the guide rod is vertically inserted on the lower joint plate, and Fixed with the lower connecting plate, the spiral steel spring is one, is set on the guiding rod, and is located between the two blocks, the lower block is fixed with the lower connecting plate, and the steel strand is at least two The two ends of the steel strand are respectively connected with the two stoppers, and the steel strand is used for connecting the stoppers at both ends of the spiral steel spring. The spiral steel spring is a pre-pressed spiral steel spring with a preloading length L4. There is a preset starting load, and the starting load is started when the external load generated by the vibration is greater than the preset starting load. The device has both a horizontal isolation elastic return mechanism and a vertical isolation elastic reset mechanism, which can realize vertical and horizontal Three-dimensional isolation.

As a preferred embodiment of the present invention, the vertical isolation elastic reset mechanism is five sets, four sets are respectively installed at the edge of the device, and the other set is installed at the center of the device part, when the earthquake vibrates downward. The four sets of vertical isolation elastic reset mechanism at the edge work, when the earthquake vibrates upwards, a set of vertical isolation elastic reset mechanism at the center works to provide vertical isolation protection. The pre-compression length L4 is 30 mm to 150 mm.

The apparatus further includes an upper coupling plate and an upper cavity, the guide rod of the vertical isolation elastic return mechanism passes through the upper coupling plate, and the upper cavity is mounted on the upper coupling plate, vertically separated A guide rod of the seismic elastic return mechanism is movable within the upper chamber.

In the startup control and isolation device of the present invention, a wiring area is provided in the upper panel and the lower panel for the power supply line or the data line to pass. Wherein, the upper surface of the upper panel is further provided with a non-slip mat, and the lower panel and the ground, the showcase panel or the floor panel are used according to the needs of use. A layer of non-slip mat is placed between the faces.

In the horizontal isolation device part of the invention, the vibration isolation device has a certain anti-overturning capability, and the device has a large frictional force with the ground. When the anti-overturning protection of the isolation device can ensure that the protected equipment does not overturn and the friction between the device and the ground or the floor can ensure that the device does not slip, the device can be directly placed on the ground, the showcase panel or the floor. When the height and width of the protected equipment are relatively large, the device needs to provide a large anti-overturning capability, and the device and the ground or the floor can be fixed by bolts.

When the horizontal isolation device of the present invention is used to protect a device equipped with a wire, the upper panel of the vibration isolation device adopts an open hole type or another reserved wire passing region.

The horizontal isolation device part of the invention can also be arranged in the form of a unit body, and the unit body comprises an upper panel, a lower panel, a middle frame rod, a lateral rail pair, a longitudinal rail pair, a lateral starting control elastic reset device and a longitudinal starting control elastic reset device. The middle frame rod is located between the upper plate and the lower plate, and the lateral start control elastic reset device is located between the middle frame bar and the upper plate. The longitudinal start control elastic reset device is located between the middle frame bar and the lower link plate, and is characterized in that: Two or more of the unit bodies are combined to form a horizontally-controlled and controlled vibration isolation device through a coupling rod, and a coupling rod is used to form a middle frame at both ends of the middle frame rod. When the isolation device is used to protect multiple devices in the same place, each unit body can be used in combination.

In the start-control isolation device of the present invention, the start-up control is implemented by pre-pressing the steel spring, and the device starts to work only when the upper device responds to a certain condition. The use of steel springs as the core component of the elastic reset device solves the durability problem well. Pre-applying pressure on the steel spring not only solves the reset function well, but also makes the device function like a start switch, and most importantly, Preloading, the device can resist the ability of super-large earthquake under finite deformation conditions, and can realize the good resetting and starting control function of the isolation device, which is equivalent to greatly improving the deformation capability of the device, thereby greatly improving the applicable range of the device, and is a high-intensity zone. Equipment and heritage protection is available.

Compared with the prior art, the present invention has the following remarkable effects:

(1) The startup control of the preset start load of the embodiment of the present invention has a start control function, and the device starts to work under a certain seismic force, and has a good start-up function and a reset function, and the device structure is simple;

(2) The start-up control of the preset starting load of the embodiment of the present invention, by pre-pressing the steel spring, the device can resist the capability of a large earthquake under the finite deformation condition, which is equivalent to the deformation capability of the device is greatly improved, and thus greatly Improve the scope of application of the device;

(3) The device isolation device of the invention has a good anti-overturning function.

DRAWINGS

Figure 1 is a cross-sectional view showing the entire structure of a first embodiment of the starting and controlling vibration isolation device of the present invention;

2a is a cross-sectional view showing the structure of a roller linear guide in the first embodiment of the present invention.

2b is a cross-sectional view showing the structure of a cross roller guide in the first embodiment of the start-control isolation device of the present invention;

3a is a top view of the second panel after removing the upper panel, showing the positional relationship and installation relationship of the horizontal isolation elastic reset mechanism;

3b is a top view of the second panel after removing the upper panel, showing the positional relationship and installation relationship of the horizontal isolation elastic reset mechanism;

4a is a schematic view showing the overall structure of the seismic isolation resetting mechanism of the first embodiment of the first embodiment of the present invention for the horizontally-preset starting load in the first embodiment of the present invention;

4b is a schematic view showing the overall structure of the isolated elastic restoring mechanism of the first preset starting load in the first embodiment of the present invention;

5 is a schematic structural view of a guide rod in the first embodiment of the starting and controlling vibration isolation device of the present invention;

Figure 6 is an assembled view of the damping shear sleeve and the guide rod in the first embodiment of the starting and controlling vibration isolation device of the present invention;

7 is a schematic structural view of a damping shear sleeve in the first embodiment of the starting and controlling vibration isolation device of the present invention;

8 is a schematic structural view of a slider in the first embodiment of the starting and controlling vibration isolation device of the present invention;

9a is a schematic structural view of a shock isolation elastic return mechanism of a first embodiment of a start-control isolation device according to the first embodiment of the present invention;

9b is a schematic structural view of a shock-isolated elastic return mechanism of a first embodiment of the first embodiment of the present invention;

10 is a schematic structural view of a pull rod in the first embodiment of the starting and controlling vibration isolation device of the present invention;

11a is a schematic structural view of an upper panel or a lower panel of a linear roller guide structure according to a first embodiment of the present invention.

11b is a schematic structural view of an upper panel or a lower panel of a cross roller guide structure in the first embodiment of the startup control isolation device according to the present invention;

Figure 12 is a cross-sectional view showing a partial structure of the first embodiment of the vertical start control isolation device of the present invention with the lower structure removed;

Figure 13 is a plan view showing the structure of the connecting plate on a part of the embodiment of the vertical starting control isolation device of the present invention;

14 is a schematic structural view of a vertical isolation elastic reset mechanism located around the first embodiment of the vertical start control isolation device of the present invention;

15 is a schematic structural view of a vertical isolation elastic reset mechanism located in the middle of the first embodiment of the vertical start control isolation device of the present invention;

16 is a schematic diagram of the operation of starting the control isolation device in the first embodiment of the starting and controlling isolation device of the present invention;

Figure 17 is a graph showing the hysteretic performance test of the isolating elastic return mechanism of the preset starting load in the first embodiment of the starting and controlling isolation device of the present invention;

Figure 18 is a cross-sectional view showing the entire structure of a second embodiment of the starting and controlling vibration isolation device of the present invention;

Figure 19 is a plan view of Figure 18 after removing the upper panel;

20 is a schematic diagram of an upper panel or a lower panel in the second embodiment of the startup control isolation device of the present invention;

Figure 21 is a cross-sectional view showing the overall structure of a third embodiment of the starting and controlling vibration isolation device of the present invention;

Figure 22 is a plan view of Figure 21 after removing the upper panel;

23 is a schematic diagram showing the overall structure of a horizontal isolation elastic reset mechanism in the third embodiment of the starting and controlling vibration isolation device of the present invention;

Figure 24a is a cross-sectional view showing the overall structure of a linear guide rail structure of a fourth embodiment of the present invention;

24b is a cross-sectional view showing the overall structure of a cross-roller rail structure in the fourth embodiment of the present invention.

Figure 25 is a cross-sectional view showing the unit body of the fifth embodiment of the starting and controlling vibration isolation device of the present invention;

Figure 26 is a plan view of a unit body in the fifth embodiment of the starting and controlling vibration isolation device of the present invention;

Figure 27 is a plan view showing the connection of two unit bodies in the fifth embodiment of the starting and controlling vibration isolation device of the present invention;

28 is a side view of the combination of the horizontal isolation elastic return mechanism in the sixth embodiment of the start control and isolation device according to the present invention;

Figure 29 is a plan view showing the combination of the horizontal isolation elastic return mechanism in the sixth embodiment of the start control and isolation device of the present invention;

Figure 30 is a plan view of the unit body after removing the upper panel in the sixth embodiment of the starting and controlling vibration isolation device of the present invention;

Figure 31 is a side elevational view of the unit body in the sixth embodiment of the starting and controlling vibration isolation device of the present invention;

Figure 32 is a plan view showing the connection of four unit bodies in the sixth embodiment of the starting and controlling vibration isolation device of the present invention;

Figure 33 is a diagram showing the use state of the start-control isolation device of the present invention, which is used for isolation of the host device;

Figure 34 is a view showing the use state of the start-control isolation device of the present invention, which is used for one of the showcase isolation;

Figure 35 is a view showing the use state of the start-control isolation device of the present invention, which is used for the second case of the showcase isolation.

Description of the reference numerals

1 is a horizontal isolation elastic reset mechanism; 2 is a lower panel; 3 is an upper panel; 4 is a middle frame; 5 is a guide rail pair; 6 is a vertical isolation elastic reset mechanism; 7 is a sleeve; 8 is an upper cavity; 9 is the upper connecting plate; 10 is the lower protective cover, 11 is the lower connecting plate; 12 is the spiral steel spring; 13 is the guiding rod; 13a is the damping groove; 14a is the pulling rod; 14b is the strand; 15 is the stopper; The first slider; 17 is a damping shear sleeve; 17a is a shearing blade; 18 is a nut; 19 is an elastic buffer sheet; 20 is a bushing; 21 is a damping fluid; 22 is a steel hinge line; 23 is a second Slider; 24 is the middle frame rod; 25 is the coupling rod; 26 is the fixed frame; 27 is the sliding track pair; 28 is the intermediate connecting plate; 100 is the horizontal isolation elastic reset combination mechanism; 101 is the wiring area; 201 is the host Equipment; 202 is a showcase.

detailed description

Embodiment 1

Embodiment 1 of the start-up control isolation device of the preset start load of the present invention is as shown in FIG. 1 to FIG. 17, and the device includes an upper panel 3, a lower panel 2, a middle frame 4, and a vibration isolation elastic reset device with a preset starting load. , the lower panel 2 is used to be placed on the floor or showcase panel or On the ground, the upper panel 3 and the lower panel 2 are provided with a wiring area 101 for the power supply line or the data line to pass. The seismic isolation elastic resetting device comprises two sets of horizontal isolation elastic resetting mechanism 1 and five sets of vertical isolation. The elastic return mechanism 6 is located above the vertical isolation elastic return mechanism 6. The device has a horizontal isolation elastic return mechanism 1 and a vertical isolation elastic reset mechanism 6, which can be combined to realize vertical and horizontal three-dimensional isolation. Separate use enables vertical isolation and horizontal isolation to ensure the safety of protected equipment or cultural relics during an earthquake.

The upper panel 3 is for supporting the protected device, the middle frame 4 is a hollow rectangular frame, and the middle frame 4 is located between the upper panel 3 and the lower panel 2, respectively connected to the upper panel 3 and the lower panel 2, and the lower panel 2 For placing on the inner panel, the floor or the floor of the showcase, two transverse rail pairs are disposed laterally between the lower portion of the upper panel 3 and the upper portion of the middle frame 4, and two longitudinal rails are longitudinally disposed between the upper portion of the lower panel 2 and the lower portion of the middle frame 4. The structure of the lateral rail pair and the longitudinal rail pair is exactly the same, collectively referred to as the rail pair 5, the lateral rail pair and the longitudinal rail pair are both disposed at the peripheral edge of the middle frame 4, the lateral rail pair supports the upper panel 3, and the longitudinal rail pair Supporting the middle frame 4, the horizontal starting control isolation device has a good anti-overturning function, and the device can also realize any horizontal movement through the double-layer bidirectional guide. Two sets of horizontally isolated elastic return mechanisms 1 are coupled to the corresponding upper panel 3 or lower panel 2.

The two sets of horizontal isolation elastic returning mechanisms in this embodiment have the same structure, one set in the lateral direction and the longitudinal direction, and two sets of isolated elastic restoring mechanisms are orthogonally arranged in the middle frame 4 in the lateral direction and the longitudinal direction, and two sets of horizontal isolation elastic The reset mechanism structure is located between the upper panel 3 and the lower panel 2, and a horizontally disposed horizontal isolation elastic return mechanism structure is laterally erected on the upper part of the middle frame 4, and is coupled with the upper panel 3, and a horizontally set horizontal isolation is provided. The elastic reset mechanism structure is longitudinally erected on the lower part of the middle frame 4 and coupled with the lower panel 2, and the horizontal isolation elastic reset mechanism can preset the starting load, and starts when the external load generated by the vibration is greater than the preset starting load, and It has the ability to move in accordance with the deformation of the isolation layer.

The horizontal isolation elastic return mechanism of the embodiment includes a spiral steel spring 12, a guide rod 13, a stopper 15, a tie rod 14, a bushing 20, a first slider 16, and a damping shear sleeve 17, and the guide rod 13 is horizontally disposed. The first slider 16 is sleeved in the middle of the guide rod 13, and the stopper 15 is two pieces, respectively respectively abutting the two inner sides of the middle frame 4, and the two blocks 15 are respectively fitted on the end of the guide rod 13 through the bushing 20 The spiral steel spring 12 is set on the guide rod 13. The spiral steel spring 12 is two of the same structure, respectively located on the left and right sides of the first slider 16, and the two ends of the spiral steel spring 12 are respectively associated with the stopper 15 and the damping The shearing sleeves 17 are in contact with each other, and the two rods 14 are located on the left and right sides of the first sliding block 16, and the pulling rods 14 pass through the first sliding block 16 and are connected to the blocking block 15, and the spiral steel spring 12 is The pre-pressed spiral steel spring, the spiral steel spring 12 is in a pre-pressed state when it is not subjected to the initial position of the vibration, and has a preset starting load, and has a pre-compression length L2 of 150 mm. The first slider 16 of the horizontally-set horizontal isolation elastic reset mechanism is coupled with the upper panel 3, and the first slider 16 and the lower panel 2 of the horizontally-separated horizontal isolation elastic reset mechanism are disposed longitudinally. Join.

The guide rod 13 in this embodiment is a round rod, and a damping groove 13a is opened in the middle of the guiding rod 13 in the axial direction, and both ends of the damping groove 13a are sealed. The thread is machined at both ends of the guide rod 13, and the nut 18 is disposed thereon to facilitate the fixing of the stopper 15 to the middle frame 4. The damping groove 13a is filled with a viscous damping liquid 21, and the first sliding block 16 is embedded with a damping shearing block 17, the damping shearing sleeve 17 has a shearing blade 17a, and the shearing blade 17a extends into the damping groove. In the viscous damping fluid 21 in the 13a, the damping shearing sleeve 17 is disposed in the middle of the guiding rod 13, and the two spiral steel springs 12 are respectively located on the left and right sides of the damping shearing sleeve 17, and the two spiral steel springs 12 respectively It is in conflict with the damping shear sleeve 17. The shearing blade 17a and the damping fluid 21 are added, and the first sliding block 16 is hindered by the damping force when sliding along the axial direction of the guiding rod, which can further improve the seismic resistance of the device.

In order to reduce the impact and noise of the metal member during the movement, the elastic buffer sheet 19 is disposed at the contact position of the end of the guide rod 13 and the nut 18, and the surface of the stopper 15, the tie rod 14 and the first slider 16 are also adhered. The layer is elastically cushioned 19 to reduce the impact during the movement.

The device further includes a lower connecting plate 11, an upper connecting plate 9 and an upper cavity 8, and the lower connecting plate 11 is mounted on the upper plate 2. The five sets of vertically isolated elastic resetting mechanisms in this embodiment have basically the same structure, including The guide rod 13, the stopper 15, the spiral steel spring 12 and the steel strand 22, the guide rod 13 is vertically disposed, the stopper 15 is two pieces, and the lower block is fixed to the lower coupling plate 11, respectively, which are respectively set on the guide rod 13 At the end, the bottom end of the guide rod 13 is vertically inserted into the lower coupling plate 11 and fixed to the lower coupling plate 11, and the spiral steel spring 12 is one, which is fitted on the guide rod 13 and located between the two stoppers 15. The steel strands 22 are two, and the two ends of the steel strands 22 are respectively connected to the two stoppers 15 for tensioning, and the steel strands 22 are used for connecting the stoppers 15 at both ends of the spiral steel spring 12.

The guide rod 13 passes through the upper coupling plate 9, and the upper chamber 8 is mounted on the upper coupling plate 9. The spiral steel spring 12 is a preloaded spiral steel spring, and the spiral steel spring 12 is in a preloaded state at an initial position free from vibration, and has a preloading length L4 of 100 mm.

In the five sets of vertical isolation elastic return mechanism structures in the embodiment, four sets of the same structure are respectively installed at the edge of the device, and the guide rod 13 and the lower joint plate 10 are fixed by welding and pass through the upper connecting plate 9. Another set of vertical isolation elastic reset mechanism is installed in the middle position of the device, the vertical isolation elastic reset device is disposed in the sleeve 7, and the sleeve 7 is welded and fixed to the upper joint plate 9, the vertical isolation elastic The reset device guide rod 13 is fixed to the lower link plate 10, passes through the sleeve 7 and the upper link plate 9, and is fixed to the upper block 15 by a nut 18. The spiral steel spring 12 is in a preloaded state when it is not subjected to the initial position of the vibration, and has a preset starting load having a preloading length L4.

When the earthquake vibrates downward, four sets of vertical isolation elastic reset mechanisms work at the edge. When the earthquake vibrates upwards, a set of vertical isolation elastic reset mechanism at the center works to provide vertical isolation protection.

The working process of the horizontal isolation elastic reset mechanism in this embodiment is as follows: when the seismic response of the device is greater than the corresponding load of the set spring compression, the device isolation device starts working, and if the upper panel 3 and the middle frame 4 are relatively displaced, one side The pull rod 14 drives the same side stop 15 to move, the compression amount of the spiral steel spring 12 increases, and the other side pull rod 14 is in a relaxed state. When the reverse movement occurs, the spiral steel spring 12 is gradually reset to the initial state and the other side pull rod 14 is The other side stopper 15 is gradually moved to realize the movement function. When the seismic response of the device is less than the corresponding load of the set spring compression, the equipment isolation device is turned off, and the device returns to the initial position state under the preloading force of the spiral steel spring 12. The lower plate 2 and the middle frame 4 move in the same manner as above.

In the embodiment, the working process of the vertical isolation elastic reset mechanism is as follows: when the seismic response of the device is greater than the corresponding load of the spring compression, the equipment isolation device starts to work, and when the device moves downward, the upper coupling plate 9 is compressed and set. The vertical isolation elastic reset device 6 has a vertical isolation elastic reset device 6 disposed in the middle of the original working state; when the device moves upward, the vertical isolation elastic reset device 6 disposed around is gradually restored to the original state, and the intermediate setting is performed. The vertical isolation elastic reset device 6 is driven by the sleeve 7 to gradually compress the spring 15 to realize the motion function.

The principle of the preset starting load in this embodiment is shown in FIG. 16. FIG. 16 shows the relationship between the horizontal force and the horizontal displacement corresponding to the conventional isolation and the preset starting load. The working process of the preset starting load isolation device is as follows: in the event of an earthquake, the seismic amplitude has a series of processes such as a small value and a large amplitude. During the process of the small amplitude, the isolation device does not start, and the protected object passes. Self-seismic safety guarantee; in the process of large earthquake amplitude, the seismic action of the protected object increases. When it is greater than the preset starting load, the device starts to work and protects the protected object.

In the traditional isolation, under the action of small horizontal force, the isolation device is deformed, and the horizontal displacement increases with the increase of the force; the first stiffness and the second stiffness exist in the skeleton curve of the isolated elastic reset mechanism with preset starting load. The first stiffness is determined by the stiffness of the elastic buffer sheet 19, and the stiffness value is large. The second stiffness is the same as the conventional post-yield yield stiffness. The test curve is shown in FIG. 17, and the data table corresponding to the test curve is shown in Table 1.

When the horizontal force is less than the preset starting load, the elastic isolation plate 19 of the preset starting load only has a small deformation, and the device starts to deform after being greater than the preset starting load. Under the action of the same horizontal force F, the displacement elastic restoring mechanism of the preset starting load has a displacement of d1, and the displacement of the conventional isolation device is d2, indicating that the seismic isolation elastic reset of the preset starting load under the same isolation effect condition The deformation d1 of the mechanism is much smaller than the deformation d2 of the conventional isolation device.

The start-controlled isolation device has the following distinctive features:

(1) Start-up control The isolation device combines the respective characteristics of the protected object and the earthquake, and uses the starting force as a control means to achieve the purpose of seismic protection of the protected object. Whether the object to be protected is related to its aspect ratio and the magnitude of the earthquake force is affected. When the earthquake force is small, the object to be protected is stable. This performance is verified in theoretical analysis and test; when the magnitude of the earthquake is large The device starts to work and achieves isolation protection for the protected object;

(2) Start control The isolation device has a good reset function.

(3) Start-up control The isolation device can withstand small earthquakes and has small deformation. The start-controlled isolation device is pre-stressed by the steel spring. Under the action of strong earthquakes, the device only produces limited deformation. The start-control isolation device can be processed into a smaller size, which can meet the conditions of installation space and limited space. In turn, the scope of application of the control and isolation device is greatly improved.

Table 1: Comparison table of force and displacement of the isolation control isolation device in the first embodiment

Displacement	force	Displacement	force	Displacement	force	Displacement	force	Displacement	force
0.74	1.9	120.16	16.73	77.25	2.34	-41.39	-12.6	-137.63	-11.18
3.82	3.53	123.12	16.98	74.15	2.38	-44.78	-12.75	-134.81	-10.33
8.24	5.9	127.44	16.93	69.57	2.43	-50.05	-13	-131.57	-9.26
9.62	6.71	128.82	16.74	68.06	2.45	-51.63	-13.09	-130.02	-8.95
12.49	8.1	131.48	16.42	65.06	2.48	-55.53	-13.27	-126.69	-8.42
16.86	9.94	135.07	16.39	60.57	2.54	-59.93	-13.51	-122.32	-7.81
18.3	10.6	136.13	16.23	59.07	2.56	-61.52	-13.59	-120.84	-7.65
21.18	11.35	137.96	15.62	56.07	2.6	-65.49	-13.74	-117.28	-7.37
22.63	11.6	138.71	15.3	54.56	2.61	-67.01	-13.81	-115.64	-7.26
25.54	12.01	139.88	14.69	51.54	2.63	-69.97	-13.94	-112.61	-7.05
27.01	12.16	140.28	14.23	50.03	2.63	-72.04	-14.01	-111.43	-6.95
30	12.35	140.7	13.22	47.01	2.6	-75.02	-14.12	-108.5	-6.77
33.04	12.42	140.63	12.19	44.01	2.55	-77.64	-14.21	-105.51	-6.6
36.12	12.52	140.08	11.09	41.02	2.48	-79.85	-14.28	-101.99	-6.43
39.25	12.61	139.08	9.96	38.04	2.41	-82.86	-14.33	-98.98	-6.28
40.82	12.67	138.42	9.4	36.56	2.37	-84.35	-14.35	-97.55	-6.22
44	12.68	136.8	8.2	33.6	2.29	-86.1	-14.38	-94.5	-6.1
47.2	12.95	134.81	6.98	30.64	2.21	-89.3	-14.43	-91.28	-6

50.41	12.89	132.53	6.18	27.69	2.11	-91.97	-14.48	-88.3	-5.91
52.01	12.96	131.31	5.83	26.21	2.05	-93.49	-14.52	-86.81	-5.87
55.2	13.12	128.75	5.16	23.23	1.92	-96.53	-14.61	-83.83	-5.79
59.89	13.42	124.7	4.45	18.72	1.63	-102.02	-14.75	-79.14	-5.69
61.42	13.59	123.3	4.28	17.2	1.49	-103.55	-14.81	-77.58	-5.65
64.46	14.51	120.44	3.91	14.12	1.11	-106.4	-14.94	-74.6	-5.6
65.96	14.58	118.99	3.76	12.52	0.86	-108.17	-15.02	-73.23	-5.57
68.94	14.28	116.02	3.47	9.35	0.23	-111.14	-15.2	-68.86	-5.5
70.43	14.06	129.68	4.52	7.86	-0.15	-112.75	-15.3	-67.26	-5.47
73.4	13.73	126.73	4.04	4.73	-1.02	-115.79	-15.51	-62.61	-5.38
74.87	13.79	125.25	3.8	3.16	-1.51	-117.3	-15.63	-59.72	-5.31
77.8	13.69	122.31	3.43	0.12	-2.57	-120.3	-15.86	-56.82	-5.24
79.26	13.93	120.85	3.27	-1.49	-3.14	-121.72	-15.99	-55.43	-5.2
82.16	13.92	117.92	2.91	-4.44	-4.35	-124.89	-16.24	-50.97	-5.11
83.61	13.95	116.46	2.72	-6.1	-4.97	-126.38	-16.36	-49.32	-5.08
86.49	14.2	113.53	2.41	-8.61	-6.21	-129.33	-16.6	-46.25	-5.02
87.94	14.24	112.05	2.3	-9.85	-6.82	-130.92	-16.71	-44.72	-4.99
90.83	14.34	109.07	2.14	-12.82	-7.97	-133.97	-16.86	-41.69	-4.94
93.72	13.59	106.05	2.05	-15.77	-8.99	-137.06	-16.9	-38.36	-4.88
96.61	13.96	103	2.02	-18.65	-9.87	-138.47	-16.78	-33.66	-4.81

99.5	15	99.9	2.03	-21.58	-10.58	-140.4	-16.5	-29.09	-4.76
100.95	15.72	98.32	2.05	-23.09	-10.88	-141.11	-16.3	-27.59	-4.74
103.86	16.08	95.11	2.09	-26.15	-11.38	-142.87	-15.79	-23.11	-4.67
106.79	16.34	91.83	2.14	-29.06	-11.76	-143.26	-15.14	-19.74	-4.55
109.74	16.41	88.53	2.19	-30.98	-12.03	-143.77	-14.37	-13.99	-3.84
111.23	16.51	86.88	2.21	-32.62	-12.14	-143.42	-13.95	-12.44	-3.52
114.21	16.57	83.61	2.26	-35.5	-12.32	-142.35	-13.04	-9.56	-2.68
118.68	16.65	78.81	2.32	-39.9	-12.53	-139	-11.63	-0.74	1.15

The horizontal isolation elastic reset mechanism and the vertical isolation elastic reset mechanism in this embodiment can be used alone or in combination, and the horizontal isolation elastic reset mechanism can be used for horizontal isolation, and the vertical isolation elastic reset mechanism can be used alone. Vertical isolation is achieved, and the combination of the two can achieve vertical and horizontal three-dimensional isolation.

As a transformation of the embodiment, the start-up control flat-isolation device comprises at least one set of horizontally-isolated elastic restoring mechanisms of the same structure arranged orthogonally in the lateral direction and the longitudinal direction in the middle frame, preferably horizontally disposed horizontally isolated elastic The reset mechanism has the same number of sets of horizontal isolation elastic reset mechanisms as the longitudinal direction, such as one set or two sets or three sets.

As a transformation of the embodiment, the seismic isolation elastic return mechanism is a horizontal isolation elastic return mechanism including only a guide rod, a stopper, a spiral steel spring and a stranded wire, and the spiral steel spring is one, and both ends of the spiral steel spring Corresponding to the two blocks, the strands are four, one end of the strand is connected with the block, and the other end is connected with the panel.

As a conversion of the embodiment, the guide rail pair may be a horizontal slider such as a cross roller guide, a roller linear guide, a ball linear guide or a slide guide pair.

As a transformation of the embodiment, the preset starting load preloading length L2 of the horizontal isolation elastic returning mechanism can be in the range of 25 mm to 250 mm; the preset starting load preloading length L4 of the vertical isolation elastic returning mechanism can be The value ranges from 30mm to 150mm.

As a modification of the embodiment, the horizontal isolation elastic reset mechanism can be changed as follows: at this time, the horizontal isolation elastic return mechanism uses only one spiral steel spring, and the damping shear sleeve 17 can be omitted, and the horizontal isolation elastic The reset mechanism includes a guide rod 13, a stopper 15, a tie rod 14, a first slider 16, and a spiral steel spring 12. The guide rod 13 is horizontally disposed, and the stopper 15 is two pieces, which are respectively set in the guide At both ends of the rod 13, the first slider 16 is set in the middle of the guide rod 13, and the spiral steel spring 12 is a pre-pressed spiral steel spring. The spiral steel spring 12 is set on the guide rod 13 between the blocks 15. The spiral steel spring 12 passes through the first sliding block 16, and the two ends of the spiral steel spring 12 respectively interfere with the two blocking blocks 15, and the two pulling rods 14 are located on the left and right sides of the first sliding block 16 respectively. The pull rod 14 passes through the first slider 16 and is connected to the stopper 15.

The spiral steel spring has a preloading length L1, and a preset starting load exists. When the external load generated by the vibration is greater than the preset starting load, the starting is started, so that the isolated elastic resetting mechanism has a function of a preset starting load. L1=2L2, and the pre-compression length L1 can take a value in the range of 50 mm to 500 mm.

As a modification of the embodiment, a vertical damper may be added between the upper coupling plate 9 and the lower coupling plate 11, and the damper may be a speed type viscous damper or a displacement damper device to enhance the vertical earthquake resistance. ability.

As a modification of the embodiment, a horizontal damper may be added between the upper panel 3 and the lower panel 2. The damper may be a speed type viscous damper or a displacement type damper device to enhance the horizontal seismic resistance.

The device of the embodiment of the present invention can be configured with the following steps: the device includes the upper panel and the lower panel. Two sets of oblique orthogonal guide rails are arranged between the upper panel and the lower panel, and the horizontal isolation elastic returning mechanism is two sets, and two sets of horizontal isolation elastic reset mechanisms are obliquely arranged orthogonally between the upper panel and the lower panel. The horizontal isolation elastic reset mechanism is coupled with the upper panel, and the other horizontal seismic isolation elastic reset mechanism is coupled with the lower panel, and the two sets of horizontal isolation elastic reset mechanisms are coupled by corresponding sliders, and simultaneously pass the slider and the guide rail. The secondary connection is provided, and the horizontal isolation elastic reset mechanism has a preset starting load. When the external load generated by the vibration is greater than the preset starting load, the starting is started, and the moving ability is adapted to the deformation of the isolation layer.

In this embodiment, the start-up isolation isolation method of the preset start load is simultaneously disclosed, and the start-up load is preset by the isolation elastic reset mechanism in the device, and the elastic reset device is activated when the external load generated by the vibration is greater than the preset start load. Start up to ensure the safety of protected equipment or artifacts during an earthquake.

Embodiment 2

As shown in FIG. 18 to FIG. 20, the embodiment of the present invention is different from the first embodiment. The seismic isolation elastic reset device of the present embodiment includes only the horizontal isolation elastic reset mechanism. The vertical isolation elastic reset mechanism is not provided, and the coupling plate and the upper cavity are omitted.

In this embodiment, two sets of horizontal isolation elastic reset mechanisms are disposed in the lateral direction and the longitudinal direction, and four sets of horizontal isolation elastic return mechanisms are perpendicularly arranged in the lateral direction and the longitudinal direction, and are arranged in a trapezoidal shape on the side of the middle frame 4, each of which Both ends of the elastic isolation mechanism are fixedly coupled to the middle frame 4 through the guide rods 13. The first slider 16 in the lateral isolation elastic return mechanism is coupled with the upper panel 3, and the longitudinal isolation elastic reset mechanism The first slider 16 is coupled to the lower panel 2, and the activation control elastic reset device provides a horizontal restoring force to the device. The rest of the structure is the same as in the first embodiment.

Embodiment 3

As shown in FIG. 21 to FIG. 23, the seismic isolation resetting device of the present embodiment includes only the horizontal isolation elastic reset mechanism. The vertical isolation elastic reset mechanism is not provided, and the coupling plate and the upper cavity are omitted.

In this embodiment, the seismic isolation elastic reset mechanism is a horizontal isolation elastic reset mechanism, and the horizontal isolation elastic return mechanism is provided in a lateral direction and a longitudinal direction. The horizontal isolation elastic reset mechanism includes a guide rod 13, a stopper 15, and a spiral steel. The spring 12, the steel strand 22 and the second slider 23, the guide rod 13 is horizontally disposed, the second slider 23 is set in the middle of the guide rod 13, and the stopper 15 is four, and the two stoppers 15 are respectively set on the guide rod The two ends of the 13 are respectively disposed in the middle of the guide rod 13 and are in contact with the second slider 23. The spiral steel springs 12 are two of the same structure, respectively located on the left and right sides of the second slider 23. On the side, the spiral steel spring 12 is set on the guide rod 13 between the corresponding two blocks 15. The two ends of the spiral steel spring 12 respectively interfere with the corresponding two blocks 15, and the steel strand 22 is guided along the guide. Four axially disposed rods 7 are located on the left and right sides of the second slider 23, and two ends of the steel strands 22 are respectively connected to the corresponding two blocks 15 and the steel strands 22 are used for A stopper 15 is coupled to both ends of the spiral steel spring 12. The steel strands 22 in this embodiment are disposed at least four, symmetrically disposed on the left and right sides of the second slider 23.

The spiral steel spring 12 is a pre-pressed spiral steel spring, and the spiral steel spring 12 is in a pre-pressed state when it is not subjected to the initial position of the vibration, and has a pre-pressing length L3, and there is a preset starting load, and the external load generated when the vibration is greater than the preset The start-up is started after the load is started, so that the isolated elastic return mechanism has a function of a preset starting load.

In the embodiment, the two sets of horizontal isolation elastic returning mechanisms are linked, the guiding rod 13 passes through the pre-pressing spiral steel spring assembly and the second sliding block 23, and the two ends of the guiding rod 13 are respectively fixedly coupled with the middle frame 4, and the horizontal direction The second slider 23 of the set of horizontal isolation elastic reset mechanism is coupled with the upper panel 3, and the second slider 23 of the horizontally-separated horizontal isolation elastic reset mechanism is coupled with the lower panel 2 to start Controlling the elastic reset device provides horizontal restoring force to the device.

The steel wire 22 of the present embodiment may also be two or four axially disposed along the guide rod 7, and generally requires at least two.

The spiral steel spring 12 is in a pre-pressing state at the initial stage, and the pre-pressing amount is determined by satisfying the equipment reset, the starting control load and the project need, the pre-pressing length L3 can be set to 150 mm, and the block 15 is pasted with a layer of elastic buffer sheet. To reduce the impact during the movement.

The working process of the start-up control elastic reset device in this embodiment is as follows: when the seismic response of the device is greater than the load corresponding to the set spring compression amount, the device isolation device starts to work, if the upper panel 3 and the middle frame 4 are relatively displaced, the second slide The block 23 compresses the spiral steel spring 12, the spring compression amount increases, and the other side spiral steel spring 12 is in an initial state; when the reverse movement occurs, the second slider 23 compresses the other side spiral steel spring 12 after exceeding the initial position, The opposite compression spiral steel spring 12 is in an initial state. When the seismic response of the device is less than the corresponding load of the set spring compression, the equipment isolation device is closed, and the device is preloaded in the spiral steel spring 12. Restore the initial position state under the action. The movement of the lower plate 2 and the middle frame 4 is the same as that of the upper panel 3.

As a modification of the embodiment, the start-up control elastic reset device includes at least one set of the same structure orthogonally disposed in the middle frame in the lateral direction and the longitudinal direction, preferably a laterally disposed start-up control elastic reset device and a longitudinally set start control The number of sets of elastic reset devices is the same.

As a conversion of this embodiment, the preloading length L3 can take values in the range of 25 mm to 300 mm.

In this embodiment, a start-up control isolation method for presetting the starting load is also disclosed, and the starting load is preset by the start-up elastic reset device in the device, and the elastic reset device is activated when the external load generated by the vibration is greater than the preset starting load. Start up to ensure the safety of protected equipment or artifacts during an earthquake.

Embodiment 4

As shown in FIG. 24, the embodiment of the present invention is different from the first embodiment. The seismic isolation resetting device of the present embodiment includes only the horizontal isolation elastic reset mechanism, and is not provided. The vertical isolation elastic return mechanism omits the coupling plate and the upper cavity at the same time. The horizontal isolation elastic return mechanism in this embodiment is the same as the first embodiment, and is two sets, but the middle frame is a split structure, which causes the connection relationship between the horizontal isolation elastic return mechanism and the middle frame and the panel to change.

In this embodiment, the middle frame is a combined frame composed of two intermediate connecting plates 28, and two horizontal guide rail pairs are disposed between the lower portion of the upper panel 3 and the upper portion of the intermediate connecting plate 28 located above, and the two longitudinal rail pairs are disposed under Between the upper portion of the panel 2 and the lower portion of the intermediate coupling plate 28 located below, the lateral rail pair and the longitudinal rail pair are respectively disposed at the peripheral positions of the upper panel 3 and the lower panel 2, and the two intermediate coupling plates 28 are carried out by a plurality of bolts. The horizontally-separated horizontal isolation elastic reset mechanism is laterally disposed between the lower portion of the upper panel 3 and the upper portion of the intermediate coupling plate 28 located above, and the longitudinally-separated horizontal isolation elastic reset mechanism is longitudinally disposed at the upper portion of the lower panel 2 and below. Between the upper portions of one intermediate link plate 28, the horizontal isolation elastic return mechanism is coupled to the corresponding upper panel 3 or lower panel 2 by corresponding sliders.

As a conversion of the embodiment, the guide rail pair may be a horizontal slider such as a cross roller guide, a roller linear guide, a ball linear guide or a slide guide pair.

Embodiment 5

The fifth embodiment of the starting control isolation device for presetting the starting load of the present invention is shown in FIGS. 25 to 27. The function is the change of the first embodiment. The horizontal start control isolation device can be set in the form of a unit body. The unit body includes the upper panel 3, the lower panel 2, the middle frame rod 24, the horizontal and vertical guide rails 5, and the horizontal and vertical start control flexibility. The reset device 1, the middle frame rod 24 is located between the upper joint plate 3 and the lower joint plate 2, the lateral start control elastic return device 1 is located between the middle frame rod 24 and the upper joint plate 2, and the longitudinal start control elastic reset device 1 is located in the middle frame Between the rod 24 and the lower plate 2. Two or more of the unit bodies are combined to form a horizontally actuated isolation device through the coupling rod 25, and a coupling rod 25 is used at both ends of the middle frame rod 24 to form a middle frame. The rest of the structure is the same as in the first embodiment.

In this embodiment, a start-up control isolation method for presetting the starting load is also disclosed, and the starting load is preset by the start-up elastic reset device in the device, and the elastic reset device is activated when the external load generated by the vibration is greater than the preset starting load. Start up to ensure the safety of protected equipment or artifacts during an earthquake.

Embodiment 6

The sixth embodiment of the starting control isolation device for presetting the starting load of the present invention is shown in FIGS. 28 to 32. The functions of the first embodiment and the sixth embodiment are changed. The horizontal start control isolation device can be set into a unit body form, and the start control load isolation device with preset start load is four sets, and the unit body is integrated by the connecting rod 25, and the unit body includes Upper panel 3, lower panel 2, horizontal isolation elastic reset combination mechanism 100. The horizontally isolated elastic return combination mechanism 100 includes a start control elastic returning device 1, a fixed frame 26 and a sliding track pair 27, and the first slider 16 is coupled with the sliding track pair 27 to bear vertical loads and also to move along the track. The unit body comprises two sets of horizontally isolating elastic restoring mechanism 100, and the two pieces are orthogonally coupled into one body, and the upper horizontal isolation and elastic restoring combination mechanism 100 is obliquely coupled with the upper panel 3, and the lower horizontal isolation and elastic restoring combination mechanism 100 is obliquely Connected to the lower panel 2. Four or more unit bodies are formed by the coupling rod 25 to form a horizontally-starting control isolation device, and the rest of the structure is the same as that of the first embodiment.

In the embodiment, the horizontal isolation elastic returning mechanism is obliquely disposed, and the seismic isolation elastic resetting mechanism has an inclined angle of 45° with the horizontal horizontal direction. When two sets of horizontal isolation elastic returning mechanisms are adopted, the two sets of elastic isolation elastic reset The mechanism is diagonally erected within the middle frame.

In this embodiment, a start-up control isolation method for presetting the starting load is also disclosed, and the starting load is preset by the start-up elastic reset device in the device, and the elastic reset device is activated when the external load generated by the vibration is greater than the preset starting load. Start up to ensure the safety of protected equipment or artifacts during an earthquake.

The horizontal isolation elastic return mechanism in the first embodiment to the sixth embodiment of the present invention can be used interchangeably. The horizontal isolation elastic reset mechanism in the third embodiment can be directly used in the embodiment. One or implementation four or six. The vertical isolation elastic reset mechanism and the corresponding coupling plate and upper cavity in the first embodiment of the present invention can also be directly applied to the second embodiment to the sixth embodiment. The various modifications of the horizontal isolation elastic return mechanism and the vertical isolation elastic return mechanism in the first embodiment of the present invention are also applicable to the second embodiment to the sixth embodiment.

The vibration isolation device of the first embodiment to the sixth embodiment of the present invention can be used not only for sill isolation on the floor or the showcase panel or the ground, but also for use in the multi-purpose structure for achieving vibration isolation, and the host device 201 shown in FIG. The earthquake or the showcase 202 shown in Figs. 34 and 35 is isolated.

The above-described embodiments of the present invention are not intended to limit the scope of the present invention, and the embodiments of the present invention are not limited thereto. According to the above-mentioned contents of the present invention, according to the ordinary technical knowledge and conventional means in the art, without departing from the above basic techniques of the present invention. Other various modifications, substitutions and alterations of the above-described structures of the present invention are intended to fall within the scope of the present invention.

Claims (23)

1. The isolating elastic reset mechanism of the preset starting load is characterized in that: the seismic isolation elastic reset mechanism comprises a guide rod, a stopper and a preset starting load elastic unit, wherein the blocking block is at least two pieces, and the blocking piece is disposed in the On the guide rod, the preset starting load elastic unit adopts a spiral steel spring, the spiral steel spring is set on the guide rod and is located between the blocks, and the spiral steel spring is a pre-pressed spiral steel spring. The preloading length has a preset starting load, and the starting is started when the external load generated by the vibration is greater than the preset starting load, so that the isolated elastic resetting mechanism has the function of preset starting load.
2. The seismic isolation elastic reset mechanism of claim 1 , wherein the vibration isolation elastic reset mechanism is a horizontal isolation elastic reset mechanism, which can realize horizontal isolation, and the guide rod level The first block is disposed at the two ends of the guide bar, and the preset start load elastic unit further includes a pull rod and a first slider, and the first slider is set in the middle of the guide rod. The spiral steel spring is one, the spiral steel spring passes through the first sliding block, and the two ends of the spiral steel spring respectively interfere with the two blocking blocks, and the pulling rods are four, which are located at the left and right of the first sliding block. Two sides on each side, the two ends of the tie rod are respectively coupled with the stopper and the first slider, and the spiral steel spring has a pre-compression length L1.
3. The seismic isolation elastic reset mechanism of claim 1 , wherein the vibration isolation elastic reset mechanism is a horizontal isolation elastic reset mechanism, which can realize horizontal isolation, and the guide rod level The two blocks are respectively disposed at two ends of the guide bar, and the preset starting load elastic unit further comprises a stranded wire, wherein the spiral steel spring is one, and both ends of the spiral steel spring Corresponding to the two blocks respectively, the strands are four, one end of the strand is coupled to the block, and the other end is coupled to the panel, and the spiral steel spring has a pre-compression length L1.
4. The seismic isolation elastic reset mechanism according to claim 2 or 3, wherein the preloading length L1 is 50 mm to 500 mm.
5. The seismic isolation elastic reset mechanism of claim 1 , wherein the vibration isolation elastic reset mechanism is a horizontal isolation elastic reset mechanism, which can realize horizontal isolation, and the guide rod level The first block is disposed at the two ends of the guide bar, and the preset start load elastic unit further includes a pull rod and a first slider, and the first slider is set in the middle of the guide rod. The spiral steel springs are two of the same structure, respectively located on the left and right sides of the first slider, one end of the spiral steel spring passes through the first slider, and the other end is in contact with the stopper, and the tie rods are four Two ends on the left and right sides of the first slider, the two ends of the tie rod are respectively coupled with the stopper and the first slider, and the spiral steel spring has a preloading length L2.
6. The isolated elastic load reduction mechanism according to claim 5, wherein the preloading length L2 is 25 mm to 250 mm.
7. The shock isolation elastic return mechanism of the preset starting load according to any one of claims 2 to 5, characterized in that: the guiding rod is a round rod, and a damping groove is opened in the middle of the guiding rod in the axial direction, the damping The groove is filled with a viscous damping fluid, and the damping block and the first sliding block are embedded with a damping shearing sleeve. The damping shearing sleeve has a shearing blade, and the shearing blade extends into the damping groove. In the internal viscous damping fluid, when the stopper and the first sliding block slide along the axial direction of the guiding rod, the damping force is hindered, and the isolation capability of the seismic isolation elastic reset mechanism is further improved.
8. The shock isolation elastic return mechanism of the preset start load according to any one of claims 2 to 5, wherein the guide rod is a round rod, and a damping pair is formed between the stopper and the guide rod, the block When the block slides along the guide rod in the axial direction, it is hindered by the damping force, which further improves the isolation capability of the seismic isolation elastic reset mechanism.
9. The seismic isolation elastic reset mechanism of claim 1 , wherein the vibration isolation elastic reset mechanism is a horizontal isolation elastic reset mechanism, which can realize horizontal isolation, and the guide rod level The preset starting load elastic unit further comprises a stranded wire and a second sliding block, wherein the second sliding block is set in the middle of the guiding rod, and the stopping block is four pieces, and the two blocking pieces are respectively set on the guiding rod The two ends of the two blocks are respectively disposed in the middle of the guide bar and are in contact with the second slider. The spiral steel springs are two of the same structure, respectively located on the left and right sides of the second slider. On the side, the two ends of the spiral steel spring are respectively in contact with the corresponding two blocks, the steel strands are at least four, and two on the left and right sides of the second block, the two ends of the steel strand are respectively The two strands are tensioned and coupled to the two ends of the spiral steel spring, and the spiral steel spring has a preloading length L3.
10. The isolated elastic load reduction mechanism according to claim 9, wherein the preloading length L3 is 25 mm to 300 mm.
11. The isolated elastic load reduction mechanism according to claim 1, wherein the vibration isolation elastic reset mechanism is a vertical isolation elastic reset mechanism, which can realize vertical isolation, and the guide The rods are vertically disposed, and the two blocks are respectively disposed at two ends of the guide rods, wherein the preset starting load elastic unit further comprises a steel strand, and the spiral steel spring is one, The steel strands are at least two, and the two ends of the steel strands are respectively connected with two stoppers, and the steel strands are used for connecting the stoppers at both ends of the spiral steel spring, and the spiral steel spring has a preloading length. L4.
12. The seismic isolation elastic reset mechanism for a preset starting load according to claim 11, wherein the preloading length L4 is 30 mm to 150 mm.
13. A start-up control isolation device comprising a preset start load of the seismic isolation reset mechanism according to any one of claims 2 to 10, the device comprising an upper panel, a lower panel and a middle frame, the upper panel being used for supporting Equipment, the middle frame is a hollow frame, The middle frame is located between the upper panel and the lower panel, respectively coupled to the upper panel and the lower panel, and the lower panel is for placing on the floor panel or the showcase panel or the ground, and the lower portion of the upper panel is laterally disposed between the upper portion of the middle frame There are two transverse rail pairs, two longitudinal rail pairs are longitudinally disposed between the lower plate portion and the lower portion of the middle frame, and the horizontal rail pair and the longitudinal rail pair are disposed on the peripheral edge of the middle frame, and the lateral rail auxiliary supports The panel and the longitudinal rail pair are supported on the lower panel, so that the isolation device has a good anti-overturning function, and the isolation device can also realize any horizontal movement through the double-layer bidirectional guide rail, which is characterized by: the level A seismic isolation elastic reset mechanism is disposed within the middle frame and coupled to a corresponding upper or lower panel.
14. A start-up control isolation device according to claim 13, wherein said horizontally-isolated elastic return mechanism is disposed in said middle frame in a lateral direction and a longitudinal direction, and is disposed in a lateral direction and a longitudinal direction. At least one set of laterally disposed horizontally-isolated elastic returning mechanism is erected on the middle frame, and is coupled to the upper panel by a corresponding slider, and the longitudinally-separated horizontal isolation elastic returning mechanism is longitudinally erected on the middle frame And the horizontal sliding elastic returning mechanism has a preset starting load through a corresponding slider, and the starting load is started when the external load generated by the vibration is greater than the preset starting load, and has The ability to exercise in accordance with the isolation deformation.
15. The start-up control isolation device with preset starting load according to claim 14, wherein: the horizontal isolation elastic return mechanism is set in a horizontal direction and a vertical direction, and two sets of horizontal isolation elastic return mechanisms are laterally and horizontally. The longitudinal direction is orthogonally disposed within the middle frame.
16. The starting control isolation isolation device according to claim 14, wherein the horizontal isolation elastic return mechanism is two sets in the lateral direction and the longitudinal direction, and four sets of horizontal isolation elastic return mechanisms are laterally and laterally. The longitudinal two-two perpendicular intersections are erected within the frame.
17. The start-up control isolation device with preset starting load according to claim 14, wherein the middle frame is a combined frame composed of two intermediate connecting plates, and the two horizontal guide rail pairs are disposed on the upper panel. Between the lower portion and the upper portion of the intermediate gusset located above, the two longitudinal rail pairs are disposed between the upper portion of the lower panel and the lower portion of an intermediate gusset located below, the transverse rail pair and The longitudinal rail pairs are respectively disposed at peripheral positions of the upper panel and the lower panel, and the two intermediate coupling plates are coupled by bolts, and the horizontally disposed horizontal isolation elastic reset mechanism is laterally disposed at a lower portion of the upper panel and a portion located above Between the upper intermediate plate portions, the longitudinally disposed horizontal isolation elastic returning mechanism is longitudinally disposed between the lower plate portion and the lower intermediate plate upper plate portion, and the horizontal isolation elastic return mechanism and the corresponding intermediate coupling plate pass correspondingly The sliders are coupled, and the horizontal isolation elastic reset mechanism and the corresponding upper or lower panel pass corresponding guide rods Connection.
18. The starting control isolation isolation device for a preset starting load of the seismic isolation elastic reset mechanism according to claim 17, wherein the guide rail pair is a cross roller guide, a roller linear guide, a ball linear guide or a slide guide vice.
19. A start-up control isolation device comprising a preset start load of the seismic isolation reset mechanism according to any one of claims 2 to 10, wherein the device comprises an upper panel and a lower panel, and two sets of obliques are arranged between the upper panel and the lower panel The orthogonal rail pair is characterized in that: the horizontal isolation elastic reset mechanism is two sets, and two sets of horizontal isolation elastic reset mechanisms are obliquely arranged orthogonally between the upper panel and the lower panel, and one set of horizontal isolation The elastic reset mechanism is coupled with the upper panel, and the other set of horizontal isolation elastic reset mechanism is coupled with the lower panel, and the two sets of horizontal isolation elastic reset mechanisms are coupled by corresponding sliders, and are coupled to the guide rail pair through the slider. The horizontal isolation elastic reset mechanism has a preset starting load, and the starting load is started when the external load generated by the vibration is greater than the preset starting load, and has an athletic ability adapted to the deformation of the isolation layer.
20. The start-up control isolation device with preset starting load according to claim 18, wherein: the start-up control isolation device of the preset starting load is four sets, and the horizontal connection can be realized through the connecting rod. Shock function.
21. The start-up control isolation device with preset starting load according to any one of claims 13 to 19, wherein the device further comprises a lower connecting plate and a vertical isolation elastic reset mechanism, and the lower connecting plate is mounted. The vertical isolation elastic reset mechanism includes a guide rod, a stopper, a spiral steel spring and a steel strand on the upper plate, the guide rod is vertically disposed, and the stopper is two pieces. They are respectively sleeved at two ends of the guide rod, and the bottom end of the guide rod is vertically inserted on the lower joint plate and fixed with the lower joint plate, and the spiral steel spring is one piece, which is set on the guide rod, and Located between two blocks, the lower block is fixed to the lower connecting plate, and the steel strands are at least two, and the two ends of the steel strand are respectively connected with two blocks, and the steel strand is used for a stopper connecting the two ends of the spiral steel spring, the spiral steel spring is a pre-pressed spiral steel spring, has a pre-pressing length L4, and has a preset starting load, and starts to start when the external load generated by the vibration is greater than the preset starting load. The device has both a horizontal isolation elastic reset mechanism and a vertical direction Shock elastic return means, can be realized three-dimensional vertical and horizontal isolation.
22. The starting control isolation isolation device according to claim 21, wherein the vertical isolation elastic reset mechanism is five sets, wherein four sets are respectively installed at the edge of the device, and another set Installed at the center of the equipment section, when the earthquake vibrates downward, four sets of vertical isolation elastic reset mechanisms work at the edge. When the earthquake vibrates upwards, a set of vertical isolation elastic reset mechanism at the center works. Vertical isolation protection.
23. The starting control isolation isolation device according to claim 21, wherein the device further comprises an upper coupling plate and an upper cavity, and the guide rod of the vertical isolation elastic return mechanism passes through the The upper connecting plate is mounted on the upper connecting plate, and the guiding rod of the vertical isolation elastic returning mechanism is movable in the upper cavity.

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