Crossed roller type article damping structure

Abstract

The invention discloses a crisscross roller type article damping structure, which relates to the technical field of equipment damping, comprises mounting plates, and is characterized in that a plurality of damping assemblies are mounted between the two mounting plates, each damping assembly comprises two track assemblies, the two track assemblies are mounted on the outer surfaces of the two mounting plates respectively, and the two track assemblies are mounted on the outer surfaces of the two mounting plates respectively. The two rail assemblies are arranged in a cross mode, and a pulley assembly is arranged between the two rail assemblies. According to the cross roller type article damping structure, the adjustable resistance pieces are arranged, the more the resistance pieces extend outwards from the through openings, the larger the resistance of the rollers is, the more difficult the rollers move to the limiting positions of the two ends of the track plate, and the situation that when an earthquake occurs, the rollers cannot move to the limiting positions of the two ends of the track plate is avoided. And the equipment is damaged by instantaneous vibration force when moving to a limit position.

Description

Technical Field

[0001] The invention relates to the technical field of equipment shock absorption, and in particular to a cross-roller type article shock absorption structure. Background Art

[0002] With the development of economy and the improvement of people's living standards, more and more people begin to pay attention to the protection of high-value items. Various high-value items, such as precious cultural relics, data cabinets, high-value medical equipment, important equipment and test instruments, play an increasingly important role in people's production and life.

[0003] The common method of seismic isolation for high-value items is to fix the high-value items with columns, brackets, ropes, etc. to prevent them from collapsing and being damaged during vibration. However, the effect is very limited. At present, except for some cultural relics that use some seismic isolation devices, other items such as data cabinets, high-value medical equipment, important equipment and test instruments generally use shock-absorbing bases for seismic isolation. However, the shock-absorbing resistance of some existing shock-absorbing bases is not easy to adjust. When facing such heavier instruments and equipment, during an earthquake, if the horizontal displacement of the house is large and the horizontal inertia of the instruments and equipment is large, it is easy to reach the movement limit of the shock-absorbing base and it will still be damaged by the impact force. Summary of the invention

[0004] The invention discloses a cross roller type article shock absorbing structure, aiming to solve the technical problem that the shock absorbing resistance is difficult to adjust.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A cross roller type article shock absorbing structure comprises a mounting plate, a plurality of shock absorbing components are mounted between the two mounting plates, the shock absorbing components comprise two track components, the two track components are mounted on the outer surfaces of the two mounting plates respectively, the two track components are cross-shaped, and a pulley component is arranged between the two track components;

[0007] The track assembly includes a track plate, and the cross section of the track plate is a "convex" shape;

[0008] The pulley assembly comprises a lower frame, the outer wall of the lower frame is elastically connected to the upper frame, and the inner walls of the lower frame and the upper frame are both rotatably provided with rollers, and the rollers roll along the track plate;

[0009] The inner walls at both ends of the lower frame and the upper frame are movably provided with resistance members, and the resistance members can move along the axis direction of the roller. The closer the resistance member is to the center axis of the roller, the greater the resistance of the roller rolling along the track plate will be. In the process of the roller moving to the extreme position of the track plate, the resistance will continue to increase, but the roller will rotate normally.

[0010] When the resistance member moves away from the limit position along the central axis of the roller, the roller will be unable to rotate;

[0011] The resistance member can prevent the roller from moving up and down.

[0012] In a preferred embodiment, the pulley assembly also includes a threaded rod, which is threadedly connected to the two ends of the lower frame and the upper frame, the end of the threaded rod is rotatably connected to an adjustment plate, the outer surface of the adjustment plate is rotatably connected to a rotating plate, the resistance member is distributed around the outer surface of the rotating plate, and a plurality of through openings are opened through the outer surface of the roller, and the resistance member is located in the through openings.

[0013] In a preferred solution, the resistance element comprises a sleeve fixed to the outer surface of the rotating plate, and a conical block is connected to the inside of the sleeve via a return spring.

[0014] In a preferred solution, the track assembly further includes a curved portion arranged on the upper surface of the track plate.

[0015] In a preferred solution, the track assembly further comprises arc-shaped slots opened on both sides of the track plate, and the resistance member is located in the arc-shaped slots after extending outward from the through opening.

[0016] In a preferred solution, the track assembly further comprises a first chamfered portion arranged at the edge of the arc surface portion, a second chamfered portion is arranged at the upper edge of the arc-shaped notch, and stoppers are arranged on the outer walls at both ends of the track plate.

[0017] In a preferred solution, the outer surface of the first chamfered portion is provided with grooves, the grooves are horizontally distributed, and the number of the grooves increases from the lowest point of the arc portion toward the outside.

[0018] In a preferred solution, the outer walls of the lower frame and the upper frame are provided with sliding grooves, the upper frame is slidably connected to the sliding grooves, and an elastic damping rod is arranged inside the sliding grooves to provide a buffering effect.

[0019] In a preferred solution, a tooth groove is provided on a side of the rotating plate close to the threaded rod, and tooth blocks are correspondingly provided on the inner walls at both ends of the lower frame and the upper frame.

[0020] In a preferred solution, a rotating ring is provided on one side of the rotating plate close to the threaded rod, and a rotating groove is correspondingly provided on one side of the adjusting plate.

[0021] It can be seen from the above that the cross-roller type article shock-absorbing structure provided by the present invention has the following technical effects.

[0022] First, the resistance piece can be extended outward from the through-hole by rotating the threaded rod forward. As the roller rotates, the resistance piece will contact the edge of the track plate. At the same time, the conical block of the resistance piece will be forced to shrink inward through the return spring. In this way, resistance is applied to the rolling of the roller. The more the resistance piece extends outward from the through-hole, the greater the resistance of the roller, and the less likely it is to move to the extreme positions at both ends of the track plate, thereby preventing the equipment from being damaged by instantaneous vibration force when it is displaced to the extreme position when an earthquake occurs.

[0023] Second: When an earthquake occurs, not only horizontal displacement will occur, but also a small amount of vertical displacement. In order to prevent the roller from detaching from the track plate, the resistance member located in the arc-shaped groove can provide a vertical limiting force for the roller, thereby preventing the roller from detaching to a certain extent.

[0024] Third, the grooves are provided to provide resistance for the retraction of the conical block. The closer the grooves are to the block, the greater their number is, so that the resistance of the roller approaching the block is greater. In this way, the impact force when the roller contacts the block can be buffered, avoiding damage to the equipment caused by large vibration force. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the mounting plate structure proposed by the present invention.

[0026] Figure 2 This is a schematic diagram of the track assembly structure proposed by the present invention.

[0027] Figure 3 This is a schematic diagram of the track plate structure proposed in the present invention.

[0028] Figure 4 This is a schematic diagram of the cross-sectional structure of the track plate proposed in the present invention.

[0029] Figure 5 This is a schematic diagram of the lower frame structure proposed by the present invention.

[0030] Figure 6 This is a schematic diagram of the lower frame and roller separation structure proposed by the present invention.

[0031] Figure 7 This is a schematic diagram of the structure in which the resistance member proposed by the present invention is fully extended from the opening.

[0032] Figure 8 This is a schematic diagram of the rotating ring structure proposed by the present invention.

[0033] Fig. 9 This is a schematic diagram of the rotating groove structure proposed by the present invention.

[0034] Fig.10 This is a schematic diagram of the explosion structure of the resistance member proposed in the present invention.

[0035] Fig.11 The present invention proposes Figure 4 Enlarged structural diagram at A in the middle.

[0036] In the accompanying drawings: 1. mounting plate; 2. shock absorbing assembly; 3. track assembly; 301. track plate; 302. arc surface portion; 303. arc-shaped notch; 304. first chamfered portion; 305. second chamfered portion; 306. groove mark; 307. stopper; 4. pulley assembly; 401. lower frame; 402. upper frame; 403. slide groove; 404. roller; 405. threaded rod; 406. adjustment plate; 407. rotating plate; 408. resistance member; 4081. sleeve; 4082. reset spring; 4083. conical block; 409. through port; 410. tooth groove; 411. tooth block; 412. rotating ring; 413. rotating groove. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] Reference Figure 1-Figure 10A cross roller type shock absorbing structure for articles comprises a mounting plate 1, a plurality of shock absorbing components 2 are mounted between two mounting plates 1, the shock absorbing component 2 comprises two track components 3, the two track components 3 are mounted on the outer surfaces of the two mounting plates 1 respectively, the two track components 3 are in a cross-shaped manner, and a pulley component 4 is arranged between the two track components 3; the track component 3 comprises a track plate 301, the cross section of the track plate 301 is a "convex" shape; the pulley component 4 comprises a lower frame 401, the outer wall of the lower frame 401 is elastically connected to the upper frame 402, and the inner walls of the lower frame 401 and the upper frame 402 are A roller 404 is rotatably provided, and the roller 404 rolls along the track plate 301; resistance members 408 are movably provided on the inner walls at both ends of the lower frame 401 and the upper frame 402, and the resistance member 408 can move along the axial direction of the roller 404. The closer the resistance member 408 is to the central axis of the roller 404, the greater the resistance of the roller 404 to rolling along the track plate 301, but the roller 404 can rotate normally; when the resistance member 408 moves away from the central axis of the roller 404 to the extreme position, the roller 404 will not be able to rotate; the resistance member 408 can prevent the roller 404 from moving up and down.

[0040] In this embodiment, when the required equipment needs shock absorption, the equipment can be placed on the mounting plate 1 for fixing. The shock absorption assembly 2 at the bottom of the mounting plate 1 is composed of two upper and lower track plates 301 arranged opposite to each other. The two track plates 301 are arranged in a cross shape, and the two groups of rollers 404 arranged in the middle can roll along the track plates 301 respectively, ensuring that when the equipment is subjected to horizontal vibration force, the rollers 404 can move along the X-axis and Y-axis directions, thereby consuming the horizontal shear force generated by the earthquake;

[0041] When the device that needs shock absorption is heavier, the device will more easily move to the extreme positions of the two ends of the track plate 301 due to inertia, and thus be subjected to stronger instantaneous vibration force. In order to design different shock absorption effects for devices of different weights, the position of the resistance member 408 can be changed to increase the resistance of the roller 404, thereby making it difficult for it to approach the extreme positions of the track plate 301.

[0042] Specifically, refer to Figure 4-Figure 7 The pulley assembly 4 further includes a threaded rod 405, which is threadedly connected to both ends of the lower frame 401 and the upper frame 402, and the end of the threaded rod 405 is rotatably connected to an adjustment plate 406, and the outer surface of the adjustment plate 406 is rotatably connected to a rotating piece 407, and a resistance member 408 is distributed around the outer surface of the rotating piece 407, and a plurality of through openings 409 are opened through the outer surface of the roller 404, and the resistance member 408 is located in the through opening 409, and the resistance member 408 includes a sleeve 4081 fixed to the outer surface of the rotating piece 407, and the sleeve 4081 is connected to a conical block 4083 through a return spring 4082;

[0043] In this embodiment, the threaded rod 405 can be rotated to make the adjustment plate 406 at its end approach the roller 404, and the rotating piece 407 and the resistance piece 408 on its outer surface will also move together. Once the resistance piece 408 extends outward from the through opening 409, as the roller 404 rotates, the resistance piece 408 will contact the edge of the track plate 301, and at the same time, the conical block 4083 of the resistance piece 408 will be forced to shrink inward through the return spring 4082, and in this way, resistance is applied to the rolling of the roller 404. The more the resistance piece 408 extends outward from the through opening 409, the greater the resistance of the roller 404, and the less likely it is to move to the extreme positions at both ends of the track plate 301.

[0044] It is worth noting that the weight and inertia of the device itself can easily drive the roller 404 to roll along the track plate 301, thereby consuming the horizontal shear force, but preventing the device from easily moving to the horizontal limit point. In addition, the threaded rod 405 has a certain resistance to rotation, preventing the vibration force from causing the threaded rod to rotate.

[0045] Specifically, refer to Figure 3 The track assembly 3 also includes an arcuate portion 302 arranged on the upper surface of the track plate 301. When the earthquake stops, due to the influence of the equipment's own gravity, the roller 404 can roll along the arcuate portion 302, thereby resetting smoothly. In addition, the resistance provided by the resistance member 408 to the roller 404 can enable the equipment to reach a stable state more quickly.

[0046] Further, see Figure 3 and Figure 4 The track assembly 3 also includes arc-shaped slots 303 opened on both sides of the track plate 301. After the resistance member 408 extends outward from the through opening 409, it will be located in the arc-shaped slot 303. When an earthquake occurs, not only horizontal displacement will occur, but also a small amount of vertical displacement will occur. In order to prevent the roller 404 from detaching from the track plate 301, the resistance member 408 located in the arc-shaped slot 303 can provide a vertical limiting force for the roller 404, thereby preventing the roller 404 from detaching to a certain extent.

[0047] Furthermore, the track assembly 3 also includes a first chamfered portion 304 arranged at the edge of the arc surface portion 302, a second chamfered portion 305 is arranged at the upper edge of the arc-shaped groove 303, and blocks 307 are arranged on the outer walls at both ends of the track plate 301. During the rotation of the roller 404, the conical block 4083 of the resistance member 408 will first contact the first chamfered portion 304, thereby facilitating the inward contraction of the conical block 4083. When the conical block 4083 rotates to the arc-shaped groove 303, it will pop outward, and then when the conical block 4083 rotates to the second chamfered portion 305, it will continue to contract inward, and so on. The stop block 307 is set to prevent the roller 404 from detaching from the track plate 301, and the position of the stop block 307 is the limit point of the horizontal shock-absorbing movement.

[0048] When adjusting the position of the resistance member 408, the smaller the contact area between the conical block 4083 and the first chamfered portion 304, the smaller the retraction process of the conical block 4083, and the smaller the resistance provided by the resistance member 408 to the roller 404, and vice versa.

[0049] Further, such as Figure 4 and Fig.11 As shown, grooves 306 are provided on the outer surface of the first chamfered portion 304. The grooves 306 are horizontally distributed, and the number of the grooves 306 increases from the lowest point of the arc portion 302 outward. The grooves 306 are provided to provide resistance for the retraction of the conical block 4083. The closer the grooves 306 are to the stopper 307, the greater their number is, thereby making the resistance of the roller 404 approaching the stopper 307 greater. In this way, the impact force when the roller 404 contacts the stopper 307 can be buffered, thereby avoiding damage to the equipment caused by large vibration force.

[0050] Specifically, a slide groove 403 is provided on the outer wall of the lower frame 401 and the upper frame 402, and the upper frame 402 is slidably connected to the slide groove 403. An elastic damping rod is provided inside the slide groove 403 to provide a buffering effect. During an earthquake, the lower frame 401 and the upper frame 402 can have a small vertical displacement, thereby consuming part of the vertical vibration force and preventing the roller 404 from detaching from the track plate 301 to a certain extent.

[0051] Further, such as Figure 6 As shown, a tooth groove 410 is provided on one side of the rotating piece 407 close to the threaded rod 405, and tooth blocks 411 are correspondingly provided on the inner walls at both ends of the lower frame 401 and the upper frame 402. By rotating the threaded rod 405 in the opposite direction, the adjustment plate 406 and the rotating piece 407 can be moved toward the tooth block 411, so that the tooth block 411 engages with the tooth groove 410 to prevent the rotating piece 407 and the roller 404 from rotating. In this state, the shock absorbing effect of the equipment is the lowest and the equipment stability is the highest, which is convenient for personnel to perform maintenance on the equipment and avoids shaking of the equipment due to personnel touching it.

[0052] Further, such as Figure 8 and Fig. 9 As shown, a rotating ring 412 is provided on one side of the rotating piece 407 close to the threaded rod 405, and a rotating groove 413 is correspondingly provided on one side of the adjusting plate 406. During the rotation of the roller 404, the roller 404, the resistance member 408 and the rotating piece 407 will rotate along the rotating groove 413 through the rotating ring 412.

[0053] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. The replacement may be a replacement of a part of the structure, device, method step, or a complete technical solution. Any equivalent replacement or change according to the technical solution and the inventive concept of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A cross roller type article shock absorbing structure, comprising two mounting plates (1), characterized in that: A plurality of shock absorbing assemblies (2) are installed between the two mounting plates (1), the shock absorbing assemblies (2) comprising two track assemblies (3), the two track assemblies (3) being respectively installed on the outer surfaces of the two mounting plates (1), the two track assemblies (3) being in a cross-shaped arrangement, and a pulley assembly (4) being arranged between the two track assemblies (3); The track assembly (3) comprises a track plate (301), and the track plate (301) has a "convex" shape in cross section; The pulley assembly (4) comprises a lower frame (401), the outer wall of the lower frame (401) is elastically connected to the upper frame (402), and the inner walls of the lower frame (401) and the upper frame (402) are both rotatably provided with rollers (404), and the rollers (404) roll along the track plate (301); Resistance members (408) are movably provided on the inner walls at both ends of the lower frame (401) and the upper frame (402); the resistance member (408) can move along the axis direction of the roller (404); the closer the resistance member (408) is to the center axis of the roller (404), the greater the resistance of the roller (404) rolling along the track plate (301); and when the roller (404) moves to the extreme position of the track plate (301), the resistance will continue to increase, but the roller (404) will rotate normally; When the resistance member (408) moves away from the central axis of the roller (404) to the extreme position, the roller (404) will be unable to rotate; The resistance member (408) can prevent the roller (404) from moving up and down.

2. The cross roller type article shock absorbing structure according to claim 1, characterized in that: The pulley assembly (4) further comprises a threaded rod (405), wherein the threaded rod (405) is threadedly connected to the two ends of the lower frame (401) and the upper frame (402), the end of the threaded rod (405) is rotatably connected to an adjustment plate (406), the outer surface of the adjustment plate (406) is rotatably connected to a rotating plate (407), the resistance member (408) is distributed around the outer surface of the rotating plate (407), the outer surface of the roller (404) is penetrated by a plurality of through openings (409), and the resistance member (408) is located in the through openings (409).

3. The cross roller type article shock absorbing structure according to claim 2, characterized in that: The resistance member (408) comprises a sleeve (4081) fixed to the outer surface of the rotating plate (407), and a conical block (4083) is connected inside the sleeve (4081) via a return spring (4082).

4. The cross roller type article shock absorbing structure according to claim 3, characterized in that: The track assembly (3) further comprises a curved surface portion (302) arranged on the upper surface of the track plate (301).

5. The cross roller type article shock absorbing structure according to claim 4, characterized in that: The track assembly (3) further comprises arc-shaped slots (303) formed on both sides of the track plate (301), and the resistance member (408) is located in the arc-shaped slots (303) after extending outward from the through opening (409).

6. The cross roller type article shock absorbing structure according to claim 5, characterized in that: The track assembly (3) further comprises a first chamfered portion (304) arranged at the edge of the arc surface portion (302), a second chamfered portion (305) is arranged at the upper edge of the arc-shaped notch (303), and stoppers (307) are arranged on the outer walls at both ends of the track plate (301).

7. The cross roller type article shock absorbing structure according to claim 6, characterized in that: The outer surface of the first chamfered portion (304) is provided with grooves (306), the grooves (306) are horizontally distributed, and the number of the grooves (306) increases from the lowest point of the arc surface portion (302) outwards.

8. The cross roller type article shock absorbing structure according to claim 7, characterized in that: The outer walls of the lower frame (401) and the upper frame (402) are provided with a sliding groove (403), the upper frame (402) is slidably connected to the sliding groove (403), and an elastic damping rod is arranged inside the sliding groove (403) for providing a buffering effect.

9. The cross roller type article shock absorbing structure according to claim 8, characterized in that: A tooth groove (410) is provided on one side of the rotating plate (407) close to the threaded rod (405), and tooth blocks (411) are correspondingly provided on the inner walls at both ends of the lower frame (401) and the upper frame (402).

10. The cross roller type article shock absorbing structure according to claim 9, characterized in that: A rotating ring (412) is provided on one side of the rotating plate (407) close to the threaded rod (405), and a rotating groove (413) is correspondingly provided on one side of the adjusting plate (406).

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