Spring type horizontal limiting device

Abstract

The utility model belongs to the technical field of shock insulation, and particularly relates to a spring type horizontal limiting device which comprises a horizontally-arranged cylinder body and a tensile / compression bar horizontally stretching out and drawing back along with the axis of the cylinder body, a spring mechanism is arranged in the cylinder body, the spring mechanism comprises a spring horizontally arranged in the cylinder body, and the spring is arranged in the cylinder body. A right end connecting piece is fixedly installed at one end of the cylinder body, and a coaxial mechanism is arranged at the axis position of the right end connecting piece so as to achieve the sliding guiding and positioning action of the tensile / pressing rod. According to the spring type horizontal limiting device, the left-right sliding length of the tensile / compression bar can be limited, and after the spring type horizontal limiting device is connected with an upper structure and a lower structure of a shock insulation layer through the connecting piece, displacement of the upper structure and the lower structure of the shock insulation layer can be limited, so that horizontal displacement of the upper structure and the lower structure of the shock insulation layer is limited; and the shock insulation layer can be limited in the horizontal direction.

Description

Technical Field

[0001] The utility model relates to the technical field of seismic isolation, in particular to a spring type horizontal limiting device. Background Art

[0002] Seismic isolation technology is to set up seismic isolation bearings and damping devices between the upper structure and the underground structure or foundation, extend the natural vibration period of the structure, increase the structural damping ratio, make the structural deformation mainly concentrated in the seismic isolation layer, reduce the seismic force and deformation of the upper structure, make the structural deformation mainly concentrated in the seismic isolation layer, reduce the stress of the upper structure, and ensure the safety of the structure under earthquake. Compared with non-seismic isolation structures, seismic isolation structures can reduce the seismic effect of the upper structure, make the seismic response of the upper structure an overall translation, greatly reduce the floor acceleration and inter-story displacement angle of each floor, in addition to protecting structural components, it also effectively protects non-structural components, equipment and pipelines in the building, ensure that it can meet normal use requirements when a fortified earthquake occurs in this area, and improve the functional recovery ability of the building structure after an earthquake.

[0003] In actual practical use, when encountering a large earthquake, the deformation displacement of the seismic isolation bearing in the prior art may exceed the limited displacement, resulting in a major safety hazard in the seismic isolation layer. Utility Model Content

[0004] Based on the existing technical problems, the utility model proposes a spring-type horizontal limiting device.

[0005] The utility model provides a spring type horizontal limit device, which comprises a horizontally placed cylinder body and a tensile / compression rod which is horizontally telescopic along the axis of the cylinder body.

[0006] A spring mechanism is disposed inside the cylinder body, and the spring mechanism includes a spring horizontally placed inside the cylinder body.

[0007] A right end connecting piece is fixedly mounted on one end of the cylinder body, and a coaxial mechanism is provided at the axis center of the right end connecting piece to realize the sliding guiding positioning action of the tensile / compression rod.

[0008] An auxiliary supporting mechanism is provided at the end of the cylinder body for supporting or lifting the end of the cylinder body.

[0009] Preferably, one end of the tension / compression rod is fixedly connected to a left end connection piece, the right end connection piece is connected to the lower structure, and the left end connection piece is connected to the upper structure, and the connection action with the upper structure of the seismic isolation layer and the lower structure of the seismic isolation layer is realized through the lower structure and the upper structure;

[0010] When the lower structure and the upper structure generate horizontal relative displacement, the spring is subjected to tension or compression.

[0011] Preferably, the type of the spring includes any one of a disc spring, a linear spring, a ring spring or a wave spring.

[0012] Preferably, the spring mechanism also includes a sleeve slidably connected to the inner wall of the cylinder body, and the other end of the tensile / compression rod slides and extends into the interior of the sleeve and is fixedly installed with a piston slidably connected to the inner wall of the sleeve. The spring is movably arranged in a cavity between the sleeve and the cylinder body, and when the tensile / compression rod is extended, the sleeve squeezes the spring from the inner end to the outer end.

[0013] The outer surface of one end of the tensile / compression rod is slidably sleeved with a pressure plate slidably connected to the inner wall of the cylinder body. The outer surface of one end of the tensile / compression rod is also fixedly connected to a limiting plate. When the limiting plate is driven by the tensile / compression rod to retract, it moves through the cylinder body and squeezes the spring from the outer end to the inner end.

[0014] Preferably, after the two ends of the spring mechanism are respectively connected to the left end connecting member and the right end connecting member, a rotating hinge connection node is set at the end of the left end connecting member and the right end connecting member to achieve free rotation within a certain plane range.

[0015] Through the above technical solution, the provision of a rotating hinge connection node can prevent the device from being broken or bent when the upper structure and the lower structure of the seismic isolation layer are slightly displaced forward and backward.

[0016] Preferably, the coaxial mechanism comprises a linear bearing coaxially mounted at the axis of the right end connector, and the length of the linear bearing is greater than or equal to the length from the right end surface of the piston to the right inner wall of the cylinder body.

[0017] Through the above technical solution, the linear bearing has a good linear guiding sliding effect, and can effectively ensure the coaxial displacement effect of the tension / compression rod and the cylinder body.

[0018] Preferably, a weight-reducing hole is opened at the axis of the tensile / compression rod, the inner wall of the weight-reducing hole is slidably connected with a connecting shaft extending to the outer end of the piston, and the outer surface of the connecting shaft is slidably connected with a connecting tube slidably connected with the inner wall of the linear bearing.

[0019] Through the above technical solution, a connecting pipe is used to connect the connecting shaft and the linear bearing coaxially, thereby achieving a coaxial guiding effect for the tensile / compression rod. At the same time, part of the gravity borne by the tensile / compression rod can be shared to the right end connector, thereby reducing the gravity borne by the cylinder body and the tensile / compression rod.

[0020] Preferably, the right end surface of the connecting shaft is fixedly connected with a tension spring fixed to the right end of the linear bearing.

[0021] Through the above technical solution, the use of a tension spring can prevent the coupling shaft from sliding to the left end of the weight-reducing hole and then detaching from the connecting pipe.

[0022] Preferably, the auxiliary support mechanism comprises a support beam vertically arranged with respect to the cylinder body, and both ends of the support beam are fixedly mounted with suspension rods upward or universal wheels downward.

[0023] The beneficial effects of the present invention are:

[0024] 1. By setting a spring mechanism, the left and right sliding length of the tension / compression rod can be limited, and then after being connected with the upper structure and the lower structure of the isolation layer through the connecting parts, the displacement of the upper structure and the lower structure of the isolation layer can be limited, thereby limiting the horizontal displacement of the upper structure and the lower structure of the isolation layer, and the isolation layer will be limited in the horizontal direction.

[0025] 2. By setting up a coaxial mechanism, the weight of the entire limit device can be reduced, and at the same time, gravity can be prevented from being concentrated on the components that slide against each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of a spring-type horizontal limit device proposed by the utility model;

[0027] Figure 2 A three-dimensional diagram of a spring mechanism of a spring-type horizontal limiter device proposed by the utility model;

[0028] Figure 3 A three-dimensional diagram of a coaxial mechanism of a spring-type horizontal limit device proposed by the utility model;

[0029] Figure 4 A diagram showing a spring-type horizontal limiter device proposed by the utility model and the connection state of the device and the seismic isolation support;

[0030] Figure 5 Figure 2 is a diagram of a spring-type horizontal limiter device proposed by the utility model, showing the device being connected to a seismic isolation support;

[0031] Figure 6 A three-dimensional diagram of the universal wheel installation of a spring-type horizontal limit device proposed by the utility model;

[0032] Figure 7 This is a three-dimensional diagram of the installation of a suspension rod of a spring-type horizontal limit device proposed by the utility model.

[0033] In the figure: 1. cylinder body; 11. spring; 12. sleeve; 13. piston; 14. pressure plate; 15. limit plate; 2. tensile / compression rod; 3. lower structure; 4. upper structure; 5. right end connector; 51. linear bearing; 52. weight reduction hole; 53. connecting shaft; 54. connecting pipe; 55. tension spring; 6. left end connector; 7. seismic isolation support; 8. spherical bearing; 9. support beam; 91. suspension rod; 92. universal wheel. DETAILED DESCRIPTION

[0034] 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 of the embodiments.

[0035] Reference Figure 1-7 A spring-type horizontal limit device comprises a horizontally placed cylinder body 1 and a tensile / compression rod 2 which is extended and retracted horizontally along the axis of the cylinder body 1.

[0036] A spring mechanism is disposed inside the cylinder 1, and the spring mechanism includes a spring 11 horizontally placed inside the cylinder 1. Preferably, the spring 11 is any one of a disc spring, a linear spring, a ring spring or a wave spring.

[0037] The spring mechanism limits the upper and lower structures of the seismic isolation layer in the following way:

[0038] One end of the tension / compression rod 2 is fixedly connected to a left end connection piece 6, the right end connection piece 5 is connected to the lower structure 3, and the left end connection piece 6 is connected to the upper structure 4, and the connection action with the upper structure of the seismic isolation layer and the lower structure of the seismic isolation layer is realized through the lower structure 3 and the upper structure 4;

[0039] When the lower structure 3 and the upper structure 4 generate horizontal relative displacement, the spring 11 is subjected to tension or compression.

[0040] The specific elastic limit is as follows: the spring mechanism also includes a sleeve 12 slidably sleeved on the inner wall of the cylinder body 1, and the other end of the tensile / compression rod 2 slides and extends into the interior of the sleeve 12 and is fixedly installed with a piston 13 slidably connected to the inner wall of the sleeve 12. The spring 11 is movably arranged in the cavity between the sleeve 12 and the cylinder body 1. When the tensile / compression rod 2 is extended, the sleeve 12 squeezes the spring 11 from the inner end to the outer end.

[0041] The outer surface of one end of the tensile / compression rod 2 is slidably sleeved with a pressure plate 14 that is slidably connected to the inner wall of the cylinder body 1. The outer surface of one end of the tensile / compression rod 2 is also fixedly connected to a limiting plate 15. When the limiting plate 15 is driven by the tensile / compression rod 2 to retract, it moves through the cylinder body 1 and squeezes the spring 11 from the outer end to the inner end.

[0042] Furthermore, after the two ends of the spring 11 are connected to the left end connection member 6 and the right end connection member 5 respectively, a rotating hinge connection node is set at the end of the left end connection member 6 and the right end connection member 5 to achieve free rotation within a certain plane range. A spherical bearing 8 can be installed on the surface of the left end connection member 6 and the right end connection member 5. The setting of the rotating hinge connection node can prevent the device from breaking or bending when the upper structure and the lower structure of the seismic isolation layer are slightly displaced forward and backward.

[0043] By setting up a spring mechanism, the left and right sliding length of the tension / compression rod 2 can be limited. After being connected to the upper structure and lower structure of the isolation layer through a connecting piece, the displacement of the upper structure and lower structure of the isolation layer can be limited, thereby limiting the horizontal displacement of the upper structure and lower structure of the isolation layer, and limiting the isolation layer in the horizontal direction.

[0044] In order to prevent the sliding problem between the components that may be affected when the entire device weighs several tons, a right-end connecting piece 5 is fixedly installed at one end of the cylinder body 1, and a coaxial mechanism is provided at the axis center of the right-end connecting piece 5 to realize the sliding guiding positioning action of the tensile / compression rod 2.

[0045] The coaxial sliding effect is achieved in this way:

[0046] The coaxial mechanism includes a linear bearing 51 coaxially mounted at the axis of the right end connector 5, and the length of the linear bearing 51 is greater than or equal to the length from the right end surface of the piston 13 to the right inner wall of the cylinder 1. The linear bearing 51 has a good linear guide sliding effect, and can effectively ensure the coaxial displacement effect of the tension / compression rod 2 and the cylinder 1.

[0047] In order to reduce weight, a weight-reducing hole 52 is provided at the axis of the tension / compression rod 2, and a connecting shaft 53 extending to the outer end of the piston 13 is slidably inserted into the inner wall of the weight-reducing hole 52, and a connecting pipe 54 slidably sleeved on the outer surface of the connecting shaft 53 is slidably inserted into the inner wall of the linear bearing 51. The connecting pipe 54 is used to coaxially connect the connecting shaft 53 and the linear bearing 51, thereby achieving a coaxial guiding effect for the tension / compression rod 2, and at the same time, it can also share a part of the gravity borne by the tension / compression rod 2 to the right end connector 5, reducing the gravity borne by the cylinder 1 and the tension / compression rod 2.

[0048] In order to prevent the coupling 53 from being disengaged, a tension spring 55 fixed to the right end of the linear bearing 51 is fixedly connected to the right end surface of the coupling 53. The tension spring 55 can prevent the coupling 53 from sliding to the left end of the weight-reducing hole 52 and then disengaging from the connecting tube 54.

[0049] By providing a coaxial mechanism, the weight of the entire limiting device can be reduced, and at the same time, gravity can be prevented from being concentrated on the components that slide against each other.

[0050] In order to provide auxiliary support for the cylinder body 1 weighing several tons, an auxiliary support mechanism is provided at the end of the cylinder body 1 to support or lift the end of the cylinder body 1. The auxiliary support mechanism includes a support beam 9 vertically arranged with the cylinder body 1, and both ends of the support beam 9 are fixedly installed with a suspension rod 91 upward or a universal wheel 92 downward.

[0051] When cylinder 1 is Figure 4 As shown in FIG. 1 , universal wheels 92 are used to support the bottom structural beam. Figure 5 As shown in the figure, the cylinder body 1 is lifted by a suspension rod 91 , and then the suspension rod 91 is fixed to the structural beam at the bottom by expansion bolts, so as to achieve auxiliary support for the cylinder body 1 .

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A spring-type horizontal limit device, comprising a horizontally placed cylinder (1) and a tensile / compression rod (2) that expands and contracts horizontally along the axis of the cylinder (1); Features: A spring mechanism is arranged inside the cylinder (1), and the spring mechanism comprises a spring (11) horizontally placed inside the cylinder (1); A right end connecting piece (5) is fixedly mounted on one end of the cylinder body (1), and a coaxial mechanism is provided at the axis center of the right end connecting piece (5) to achieve a sliding guide positioning action for the tensile / compression rod (2); An auxiliary supporting mechanism is provided at the end of the cylinder body (1) for supporting or lifting the end of the cylinder body (1).

2. A spring type horizontal limiter according to claim 1, characterized in that: One end of the tension / compression rod (2) is fixedly connected to a left end connecting piece (6), the right end connecting piece (5) is connected to the lower structure (3), and the left end connecting piece (6) is connected to the upper structure (4), and the connection action with the upper structure of the seismic isolation layer and the lower structure of the seismic isolation layer is realized through the lower structure (3) and the upper structure (4); When the lower structure (3) and the upper structure (4) undergo horizontal relative displacement, the spring (11) is subjected to tension or compression.

3. A spring type horizontal limiter according to claim 1, characterized in that: The type of the spring (11) includes any one of a disc spring, a linear spring, a ring spring or a wave spring.

4. A spring type horizontal limiter according to claim 2, characterized in that: The spring mechanism further comprises a sleeve (12) slidably sleeved on the inner wall of the cylinder body (1); the other end of the tension / compression rod (2) slides and extends into the interior of the sleeve (12), and a piston (13) is fixedly mounted thereon and slidably connected to the inner wall of the sleeve (12); the spring (11) is movably arranged in a cavity between the sleeve (12) and the cylinder body (1); when the tension / compression rod (2) is extended, the sleeve (12) presses the spring (11) from the inner end to the outer end; The outer surface of one end of the tensile / compression rod (2) is slidably sleeved with a pressure plate (14) slidably connected to the inner wall of the cylinder body (1). The outer surface of one end of the tensile / compression rod (2) is also fixedly connected to a limiting plate (15). When the limiting plate (15) is driven by the tensile / compression rod (2) to retract, it moves through the cylinder body (1) and squeezes the spring (11) from the outer end to the inner end.

5. A spring type horizontal limiter according to claim 4, characterized in that: After the two ends of the device are respectively connected to the left end connecting member (6) and the right end connecting member (5), rotating hinge connection nodes are arranged at the ends of the left end connecting member (6) and the right end connecting member (5) to achieve free rotation within a certain plane range.

6. A spring type horizontal limiter according to claim 4, characterized in that: The coaxial mechanism comprises a linear bearing (51) coaxially mounted at the axis of the right end connecting member (5), the length of the linear bearing (51) being greater than or equal to the length from the right end surface of the piston (13) to the right inner wall of the cylinder body (1).

7. A spring type horizontal limiter according to claim 6, characterized in that: A weight-reducing hole (52) is provided at the axis of the tension / compression rod (2), and a connecting shaft (53) extending to the outer end of the piston (13) is slidably inserted into the inner wall of the weight-reducing hole (52), and a connecting pipe (54) slidably inserted into the inner wall of the linear bearing (51) is slidably sleeved on the outer surface of the connecting shaft (53).

8. A spring type horizontal limiter according to claim 7, characterized in that: The right end surface of the connecting shaft (53) is fixedly connected to a tension spring (55) fixed to the right end of the linear bearing (51).

9. A spring type horizontal limiter according to claim 1, characterized in that: The auxiliary support mechanism comprises a support beam (9) vertically arranged with respect to the cylinder body (1), and both ends of the support beam (9) are fixedly mounted with suspension rods (91) upward or with universal wheels (92) downward.

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