Elastic sliding support

Abstract

The utility model belongs to the technical field of supports, and discloses an elastic sliding support. The main technical characteristics are as follows: the support comprises an upper support plate, a first stainless steel plate, a first planar polytetrafluoroethylene plate, a ball core, a spherical polytetrafluoroethylene plate, a middle support plate, a second planar polytetrafluoroethylene plate, a second stainless steel plate and a lower support plate, a lower rail clamping groove is formed in the lower portion of the middle support plate, a lower protruding edge is arranged at the position, corresponding to the lower rail clamping groove, of the lower portion of the middle support plate, the lower protruding edge is clamped in the lower rail clamping groove, a lower outer baffle is arranged on the portion, at the end of the lower rail clamping groove, of the lower support plate, and a lower nitrogen spring with a lower telescopic rod is arranged between the lower outer baffle and the middle support plate. The lower nitrogen spring is light in weight, convenient to install and replace and small in occupied space, and particularly has more advantages for a small support, the pressure of the lower nitrogen spring can be adjusted, and elastic fatigue cannot occur in the using process.

Description

Technical Field

[0001] The utility model belongs to the technical field of supports, and in particular relates to an elastic sliding support. Background Art

[0002] Elastic sliding bearings play a vital role in the safety and service life of bridges. The elastic sliding bearings currently used mainly include the following two types: First, a one-way sliding bearing, including an upper bearing plate, a first stainless steel plate, a first flat PTFE plate, a spherical core, a spherical PTFE plate, a middle bearing plate, a second flat PTFE plate, a second stainless steel plate and a lower bearing plate, wherein a lower rail slot is provided on the lower bearing plate, and a lower convex edge is provided at a position corresponding to the lower rail slot near the lower part of the middle bearing plate, and the lower convex edge is clamped in the lower rail slot; Second, a multi-directional sliding bearing, including an upper bearing plate, a first stainless steel plate, a first flat PTFE plate, a spherical PTFE plate, a middle bearing plate, a second flat PTFE plate, a second stainless steel plate and a lower bearing plate. A steel plate, a first flat Teflon plate, a ball core, a spherical Teflon plate, a middle support plate, a second flat Teflon plate, a second stainless steel plate and a lower support plate, wherein a lower rail slot is provided on the lower support plate, a lower convex edge is provided near the lower portion of the middle support plate and corresponding to the lower rail slot, and the lower convex edge is clamped in the lower rail slot, an upper rail slot is provided on the upper support plate, an upper convex edge is provided near the upper portion of the middle support plate and corresponding to the upper rail slot, and the upper convex edge is clamped in the upper rail slot.

[0003] In order to dissipate energy and reset the bearing itself after an earthquake or impact, a bow plate formed by bending an elastic steel plate is provided between the middle support plate and the lower support plate and / or between the middle support plate and the upper support plate. After displacement occurs between the middle support plate and the lower support plate and / or between the middle support plate and the upper support plate due to an earthquake or impact, the bow plate is squeezed and deformed, absorbing energy. After the external force is removed, the bow plate returns to its original shape and the middle support plate is reset. The above-mentioned bearing has the following disadvantages: First, due to the heavy weight of the bow plate, it is difficult to construct and has high manufacturing costs; second, due to the large area occupied by the bow plate, it is only suitable for bearings with larger areas. For small bearings used in small bridges, the strength and size of the bow plate are limited due to the small size of the bearing; third, during use, the bow plate is prone to elastic fatigue due to aging and repeated deformation, resulting in a large difference in reset strength between the early and late stages of use; fourth, the heavy weight of the bow plate makes it difficult to install and replace. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an elastic sliding support which is light in weight, has good shock-isolating effect, has consistent reset force, is easy to construct, has low cost, and is more convenient to install and replace.

[0005] In order to solve the above problems, the technical solution adopted by the elastic sliding support of the present invention is: it includes an upper support plate, a first stainless steel plate, a first flat Teflon plate, a spherical core, a spherical Teflon plate, a middle support plate, a second flat Teflon plate, a second stainless steel plate and a lower support plate, a lower rail slot is provided on the lower support plate, a lower convex edge is provided at a position corresponding to the lower rail slot near the lower part of the middle support plate, the lower convex edge is clamped in the lower rail slot, a lower outer baffle is provided on the lower support plate at the end of the lower rail slot, and a lower nitrogen spring with a lower telescopic rod is provided between the lower outer baffle and the middle support plate.

[0006] Its additional technical features are:

[0007] A lower spring hole is provided on the middle support plate, the lower nitrogen spring is located in the lower spring hole, a lower universal rotation mechanism is provided on the lower outer baffle plate, and the front end of the lower telescopic rod is fixed to the lower universal rotation mechanism;

[0008] A lower spring hole is provided on the lower outer baffle plate, the lower nitrogen spring is located in the lower spring hole, a lower universal rotation mechanism is provided on the middle support plate, and the front end of the lower telescopic rod is fixed to the lower universal rotation mechanism;

[0009] An upper rail slot is provided on the upper support plate, an upper convex edge is provided at a position corresponding to the upper rail slot near the upper portion of the middle support plate, the upper convex edge is clamped in the upper rail slot, an upper outer baffle is provided on the lower surface of the upper support plate at the end of the upper rail slot, and an upper nitrogen spring with an upper telescopic rod is provided between the upper outer baffle and the middle support plate;

[0010] An upper spring hole is provided on the middle support plate, the upper nitrogen spring is located in the upper spring hole, an upper universal rotation mechanism is provided on the upper outer baffle plate, and the front end of the upper telescopic rod is fixed to the upper universal rotation mechanism;

[0011] An upper spring hole is provided on the upper outer baffle plate, the upper nitrogen spring is located in the upper spring hole, an upper universal rotation mechanism is provided on the middle support plate, and the front end of the upper telescopic rod is fixed to the upper universal rotation mechanism;

[0012] A central through hole is provided in the middle of the core, an upward protrusion is provided at the center of the middle support plate, the protrusion is inserted into the central through hole, and an oil storage box with an oil seepage hole at the bottom is provided in the central through hole at the top of the protrusion.

[0013] The elastic sliding support provided by the utility model has the following advantages compared with the prior art: first, since it includes an upper support plate, a first stainless steel plate, a first flat PTFE plate, a spherical core, a spherical PTFE plate, a middle support plate, a second flat PTFE plate, a second stainless steel plate and a lower support plate, a lower rail groove is provided on the lower support plate, a lower convex edge is provided at a position corresponding to the lower rail groove near the lower part of the middle support plate, the lower convex edge is clamped in the lower rail groove, a lower outer baffle is provided on the lower support plate at the end of the lower rail groove, and a lower nitrogen spring with a lower telescopic rod is provided between the lower outer baffle and the middle support plate. When an earthquake or impact occurs, the beam body transmits the force to the upper support plate, the spherical core and the middle support plate. The seat plate and the middle support plate are displaced relative to the lower support plate, causing the lower nitrogen spring on one side of the moving direction to be compressed, the lower telescopic rod to retract, and the middle support plate and the lower support plate to move relative to each other. As the middle support plate moves, the reaction force of the lower nitrogen spring increases, and the middle support plate stops moving. After the external force is removed, the telescopic rod of the lower nitrogen spring pushes forward and the middle support plate is reset. The lower nitrogen spring is light in weight, easy to install and replace, and occupies little space, which is especially advantageous for small supports. The pressure of the lower nitrogen spring can be adjusted, and elastic fatigue will not occur during use. Secondly, since a lower spring hole is provided on the middle support plate, the lower nitrogen spring is located in the lower spring hole, and a lower universal joint is provided on the lower outer baffle. The lower telescopic rod is connected to the lower outer baffle through the lower universal rotation mechanism, and the front end of the lower telescopic rod is fixed to the lower universal rotation mechanism, so that the space occupied by the lower nitrogen spring is smaller, and the size of the entire support is effectively reduced. The lower telescopic rod is connected to the lower outer baffle through the lower universal rotation mechanism. When the lower nitrogen spring moves slightly in another direction, the bending of the telescopic rod can be effectively avoided, and it is more convenient to use. Thirdly, since a lower spring hole is provided on the lower outer baffle, the lower nitrogen spring is located in the lower spring hole, and a lower universal rotation mechanism is provided on the middle support plate, the front end of the lower telescopic rod is fixed to the lower universal rotation mechanism, which can also effectively reduce the size of the entire support. Fourthly, since an upper rail slot is provided on the upper support plate, the lower rail slot is provided near the An upper convex edge is provided at a position on the upper portion of the middle support plate corresponding to the upper rail slot, and the upper convex edge is clamped in the upper rail slot. An upper outer baffle is provided on the lower surface of the upper support plate at the end of the upper rail slot, and an upper nitrogen spring with an upper telescopic rod is provided between the upper outer baffle and the middle support plate. For the multi-directional sliding support, all-round sliding can be achieved, effectively reducing the size of the entire support and making it more convenient to use; fifthly, since an upper spring hole is provided on the middle support plate, the upper nitrogen spring is located in the upper spring hole, an upper universal rotation mechanism is provided on the upper outer baffle, and the front end of the upper telescopic rod is fixed to the upper universal rotation mechanism, effectively reducing the size of the entire support and achieving multi-directional sliding;Sixth, because the upper outer baffle plate is provided with an upper spring hole, the upper nitrogen spring is located in the upper spring hole, and the middle support plate is provided with an upper universal rotation mechanism. The front end of the upper telescopic rod is fixed to the upper universal rotation mechanism, which also effectively reduces the size of the entire support and enables multi-directional sliding. Seventh, because the center of the ball core is provided with a central through hole, the center of the middle support plate has an upward protrusion, which is inserted into the central through hole. An oil storage box with an oil seepage hole at the bottom is provided in the central through hole at the top of the protrusion. Lubricating grease is placed in the oil storage box. During use, the lubricating grease can enter the surface of the spherical PTFE plate through the oil seepage hole to achieve the purpose of lubrication. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of the elastic sliding support of the utility model;

[0015] Figure 2 for Figure 1 AA section view;

[0016] Figure 3 for Figure 1 Top view without the upper support plate;

[0017] Figure 4 Schematic diagram of the structure of an elastic sliding support with a lower spring hole on the lower outer baffle;

[0018] Figure 5 Schematic diagram of the structure of the elastic sliding support with an upper nitrogen spring;

[0019] Figure 6 for Figure 5 BB cross-sectional view;

[0020] Figure 7 for Figure 5 Top view without the upper support plate;

[0021] Figure 8 Schematic diagram of the structure of an elastic sliding support with only an upper nitrogen spring;

[0022] Figure 9 for Figure 8 CC cross-sectional view;

[0023] Figure 10 for Figure 8 Top view with the upper support plate removed. DETAILED DESCRIPTION

[0024] The structure and operating principle of the elastic sliding support of the present invention are further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] like Figure 1 、 Figure 2 and Figure 3 As shown, a schematic structural diagram of the elastic sliding support of the present invention, the elastic sliding support of the present invention includes an upper support plate 1, a first stainless steel plate 2, a first flat polytetrafluoroethylene plate 3, a spherical core 4, a spherical polytetrafluoroethylene plate 5, a middle support plate 6, a second flat polytetrafluoroethylene plate 7, a second stainless steel plate 8 and a lower support plate 9, a lower rail groove 10 is provided on the lower support plate 9, a lower convex edge 11 is provided at a position corresponding to the lower rail groove 10 near the lower part of the middle support plate 6, the lower convex edge 11 is stuck in the lower rail groove 10, a lower outer baffle 12 is provided on the lower support plate 9 at the end of the lower rail groove 10, and a lower nitrogen spring 14 with a lower telescopic rod 13 is provided between the lower outer baffle 12 and the middle support plate 6.

[0026] During an earthquake or impact, the beam body transmits the force to the upper support plate 1, the ball core 4 and the middle support plate 6. The middle support plate 6 is displaced relative to the lower support plate 9, causing the lower nitrogen spring 14 on one side of the moving direction to be compressed, the lower telescopic rod to retract, and the middle support plate and the lower support plate to move relative to each other. As the middle support plate moves, the reaction force of the lower nitrogen spring 14 increases, and the middle support plate 6 stops moving. After the external force is removed, the telescopic rod 13 of the lower nitrogen spring 14 pushes forward, and the middle support plate 9 is restored. The lower nitrogen spring 14 is light in weight, easy to install and replace, and takes up little space, which is especially advantageous for small supports. The pressure of the lower nitrogen spring can be adjusted, and elastic fatigue will not occur during use.

[0027] A lower spring hole 15 is provided on the middle support plate 6, and the lower nitrogen spring 14 is located in the lower spring hole 15. A lower universal rotation mechanism 16 is provided on the lower outer baffle plate 12, and the front end of the lower telescopic rod 13 is fixed to the lower universal rotation mechanism 16. In this way, the space occupied by the lower nitrogen spring is smaller, and the size of the entire support is effectively reduced. The lower telescopic rod is connected to the lower outer baffle plate through the lower universal rotation mechanism. When the lower nitrogen spring moves slightly in another direction, the telescopic rod can be effectively avoided from bending, and it is more convenient to use.

[0028] like Figure 4 As shown, a lower spring hole 15 is provided on the lower outer baffle 12, and the lower nitrogen spring 14 is located in the lower spring hole 15. A lower universal rotation mechanism 16 is provided on the middle support plate 6, and the front end of the lower telescopic rod 13 is fixed to the lower universal rotation mechanism 16, which can also effectively reduce the size of the entire support.

[0029] like Figure 5 、 Figure 6 and Figure 7As shown, an upper rail slot 17 is provided on the upper support plate 1, and an upper convex edge 18 is provided at a position corresponding to the upper rail slot 17 near the upper part of the middle support plate 6. The upper convex edge 18 is stuck in the upper rail slot 17, and an upper outer baffle 19 is provided on the lower surface of the upper support plate 1 at the end of the upper rail slot 17. An upper nitrogen spring 21 with an upper telescopic rod 20 is provided between the upper outer baffle 19 and the middle support plate 6. For the multi-directional sliding support, all-round sliding can be achieved, which effectively reduces the size of the entire support and is more convenient to use.

[0030] An upper spring hole 22 is provided on the middle support plate 6, and the upper nitrogen spring 21 is located in the upper spring hole 22. An upper universal rotation mechanism 23 is provided on the upper outer baffle 19, and the front end of the upper telescopic rod 20 is fixed to the upper universal rotation mechanism 23, which effectively reduces the size of the entire support and realizes multi-directional sliding.

[0031] Of course, an upper spring hole can also be provided on the upper outer baffle 19, the upper nitrogen spring 21 is located in the upper spring hole, and an upper universal rotation mechanism is provided on the middle support plate 6. The front end of the upper telescopic rod is fixed to the upper universal rotation mechanism, which can also effectively reduce the size of the entire support and realize multi-directional sliding.

[0032] A central through hole 24 is provided in the middle of the core 4, and an upward protrusion 25 is provided at the center of the middle support plate 6. The protrusion 25 is inserted into the central through hole 24. An oil storage box 27 with an oil seepage hole 26 at the bottom is provided in the central through hole 24 at the top of the protrusion 25. Lubricating grease is placed in the oil storage box 27. During use, the lubricating grease can enter the surface of the spherical PTFE plate through the oil seepage hole to achieve the purpose of lubrication.

[0033] Of course, you can also Figure 8 、 Figure 9 and Figure 10 As shown, the elastic sliding support of the present invention is only provided with an upper rail groove 17 on the upper support plate 1, and an upper convex edge 18 is provided at a position corresponding to the upper rail groove 17 near the upper part of the middle support plate 6. The upper convex edge 18 is stuck in the upper rail groove 17, and an upper outer baffle 19 is provided on the lower surface of the upper support plate 1 at the end of the upper rail groove 17. An upper nitrogen spring 21 with an upper telescopic rod 20 is provided between the upper outer baffle 19 and the middle support plate 6. The lower end of the middle support plate 6 is fixed to the lower support plate 9, and one-way sliding is achieved by relative sliding between the upper support plate 1 and the middle support plate 6. In this way, it can also be easy to install and replace, and it occupies little space, which is more advantageous for small supports. The pressure of the upper nitrogen spring can be adjusted, and elastic fatigue will not occur during use.

[0034] The protection scope of the present invention is not limited to the above embodiments. As long as the structure is the same or similar to the elastic sliding support structure of the present invention, it falls within the protection scope of the present invention.

Claims

1. An elastic sliding support, comprising an upper support plate, a first stainless steel plate, a first flat PTFE plate, a spherical core, a spherical PTFE plate, a middle support plate, a second flat PTFE plate, a second stainless steel plate, and a lower support plate, wherein a lower rail slot is provided on the lower support plate, and a lower convex edge is provided near the lower portion of the middle support plate and at a position corresponding to the lower rail slot, wherein the lower convex edge is clamped in the lower rail slot, characterized in that: A lower outer baffle is provided on the lower support plate at the end of the lower rail slot, and a lower nitrogen spring with a lower telescopic rod is provided between the lower outer baffle and the middle support plate.

2. The elastic sliding support according to claim 1, characterized in that: A lower spring hole is provided on the middle support plate, the lower nitrogen spring is located in the lower spring hole, a lower universal rotation mechanism is provided on the lower outer baffle plate, and the front end of the lower telescopic rod is fixed to the lower universal rotation mechanism.

3. The elastic sliding support according to claim 1, characterized in that: A lower spring hole is provided on the lower outer baffle plate, the lower nitrogen spring is located in the lower spring hole, a lower universal rotation mechanism is provided on the middle support plate, and the front end of the lower telescopic rod is fixed to the lower universal rotation mechanism.

4. The elastic sliding support according to claim 1, characterized in that: An upper rail slot is provided on the upper support plate, an upper convex edge is provided at a position corresponding to the upper rail slot near the upper portion of the middle support plate, the upper convex edge is clamped in the upper rail slot, an upper outer baffle is provided on the lower surface of the upper support plate at the end of the upper rail slot, and an upper nitrogen spring with an upper telescopic rod is provided between the upper outer baffle and the middle support plate.

5. The elastic sliding support according to claim 4, characterized in that: An upper spring hole is provided on the middle support plate, the upper nitrogen spring is located in the upper spring hole, an upper universal rotation mechanism is provided on the upper outer baffle, and the front end of the upper telescopic rod is fixed to the upper universal rotation mechanism.

6. The elastic sliding support according to claim 4, characterized in that: An upper spring hole is provided on the upper outer baffle plate, the upper nitrogen spring is located in the upper spring hole, an upper universal rotation mechanism is provided on the middle support plate, and the front end of the upper telescopic rod is fixed to the upper universal rotation mechanism.

7. The elastic sliding support according to claim 1, characterized in that: A central through hole is provided in the middle of the core, an upward protrusion is provided at the center of the middle support plate, the protrusion is inserted into the central through hole, and an oil storage box with an oil seepage hole at the bottom is provided in the central through hole at the top of the protrusion.

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