Cast-in-place concrete plate type stair sliding support

Abstract

The utility model belongs to the technical field of building structures, and provides a cast-in-place concrete plate type stair sliding support which comprises a stair flight and a lower platform, and a groove is defined in the top end of the lower platform. The first sliding block is fixed at the bottom end of the ladder section, and one end extends along the groove direction; the second sliding block is fixed in the groove, a sliding groove is defined in the side, close to the first sliding block, of the second sliding block, and the first sliding block is arranged in the sliding groove in a sliding fit mode; the sliding connection seat is fixed to the first sliding block, a limiting groove is formed in the inner wall of the top end of the sliding groove, the sliding connection seat is in sliding contact with the limiting groove, and the distances between the peripheral side of the sliding connection seat and the inner wall face of the limiting groove are the same; the first elastic piece is arranged between the sliding connection base and the limiting groove so that the sliding connection base can be elastically connected with the limiting groove. According to the sliding support, sliding resistance can be reduced, the structural stability of the sliding support is effectively guaranteed, the uniformity of the resistance effect is enhanced, and the sliding vibration reduction effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building structures, and in particular relates to a cast-in-place concrete plate-type staircase sliding support. Background Art

[0002] The sliding support is a thick plastic sheet added at the joint of the stair tread and the ladder beam, which separates the stair tread from the ladder beam below. When responding to vibration, structural displacement occurs between the stair tread and the ladder beam to eliminate the K-type support effect of the stairs. By reducing the stiffness of the stairwell, the impact of earthquake forces and other factors is reduced, thereby ensuring structural safety.

[0003] However, common sliding bearings usually adopt a rectangular surface contact method, which leads to large sliding resistance and makes it difficult to ensure the sliding effect. In addition, the rectangular contact surface has a long side and a short side respectively. The sliding resistance generated on the long-distance contact surface is different from that on the short-distance contact surface. As a result, under the influence of vibration, the ladder section is prone to damage to its own structure due to uneven reaction force generated by resistance. Therefore, a sliding bearing is urgently needed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a cast-in-place concrete slab staircase sliding support to solve the above problems, reduce sliding resistance and effectively ensure the structural stability of the sliding support, enhance the uniformity of resistance effect, and improve the sliding vibration reduction effect.

[0005] To achieve the above purpose, the utility model provides the following solution: a cast-in-place concrete slab staircase sliding support, comprising:

[0006] A staircase and a lower platform, wherein a groove is defined at the top of the lower platform;

[0007] A first sliding block, fixed at the bottom end of the step, with one end extending along the direction of the groove;

[0008] A second slider is fixed in the groove, a side of the second slider close to the first slider is defined with a slide groove, and the first slider is slidably fitted in the slide groove;

[0009] A sliding seat is fixed on the first sliding block, a limiting groove is provided on the inner wall of the top end of the sliding groove, the sliding seat is in sliding contact with the limiting groove, and the distance between the outer peripheral side of the sliding seat and the inner wall of the limiting groove is the same;

[0010] The first elastic member is arranged between the sliding seat and the limiting groove to form an elastic connection between the sliding seat and the limiting groove.

[0011] Preferably, it also includes:

[0012] The arc-shaped clamping seat is welded to the bottom axis of the sliding seat, and a clamping groove is provided on the inner wall of the bottom end of the limiting groove, and the arc-shaped clamping seat is in sliding contact with the clamping groove.

[0013] Preferably, the first elastic member comprises:

[0014] The spring sheet is distributed circumferentially around the sliding seat, and two ends of the spring sheet are respectively against the sliding seat and the inner wall surface of the limiting groove.

[0015] Preferably, the spring sheet is an annular wavy structure, and the protruding portion of the spring sheet is configured to abut against the sliding seat and the inner wall surface of the limiting groove respectively.

[0016] Preferably, a truncation is provided on the spring sheet, and two sides of the truncation respectively constitute two end portions of the spring sheet, wherein one end portion is fixedly connected to the inner side wall of the limiting groove, and the other end portion is not in contact with the limiting groove and the sliding seat.

[0017] Preferably, it also includes:

[0018] The second elastic member is arranged between the first slider and the second slider so as to elastically connect the first slider to the second slider.

[0019] Preferably, the second elastic member comprises:

[0020] A plurality of first spring sheets and a second spring sheet, wherein the area corresponding to the side wall of the first slider and the inner wall of the groove forms an elastic interval, and the plurality of first spring sheets and second spring sheets are distributed in the elastic interval in sequence and at intervals, wherein the mutually close ends of the first spring sheets and the second spring sheets abut against each other, and the mutually distant ends are respectively fixed to the first slider or the second slider.

[0021] Preferably, the first elastic sheet and the second elastic sheet have the same arc-shaped structure, and the arc-shaped ends of the first elastic sheet and the second elastic sheet abut against each other.

[0022] Compared with the prior art, the utility model has the following advantages and technical effects:

[0023] The utility model realizes the sliding cooperation between the bottom end of the ladder section and the lower platform through the first sliding block and thus forms a sliding support. The sliding block is fixedly connected to the bottom surface of the first sliding block and is slidably connected to the limiting groove by the sliding block. When the sliding block is in sliding contact with the limiting groove, the distance between the outer peripheral side and the inner wall surface of the limiting groove is the same. Since the limiting groove is arranged on the inner wall of the top end of the sliding groove, the sliding block is in sliding contact with the limiting groove, thereby reducing the sliding contact area between the first sliding block and the second sliding block. At the same time, the first elastic member is arranged in the gap with the same distance between the sliding seat and the limiting groove to apply elastic support thereto and ensure the uniformity of the sliding resistance. At the same time, the connection stability between the sliding seat and the limiting groove is enhanced to achieve the improvement of the sliding vibration reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor:

[0025] Figure 1 It is the position relationship diagram of the lower platform and the staircase;

[0026] Figure 2 is a position relationship diagram of the sliding seat and the spring sheet;

[0027] Figure 3 The figure is a positional relationship diagram of the arc-shaped card seat and the card connection slot;

[0028] Among them, 1. ladder section; 2. lower platform; 3. first slider; 4. second slider; 5. sliding seat; 6. arc-shaped clamping seat; 7. spring sheet; 8. first spring sheet; 9. second spring sheet; 10. limiting groove; 11. clamping groove. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] Example: Refer to Figure 1-Figure 3, a cast-in-place concrete slab staircase sliding support, comprising:

[0032] The stair section 1 and the lower platform 2, the top of the lower platform 2 is defined with a groove;

[0033] A first sliding block 3 is fixed at the bottom end of the stair segment 1, and one end of the sliding block extends along the groove direction;

[0034] The second slider 4 is fixed in the groove, and a sliding groove is defined on one side of the second slider 4 close to the first slider 3, and the first slider 3 is slidably fitted in the sliding groove;

[0035] The sliding seat 5 is fixed on the first sliding block 3, and a limiting groove 10 is provided on the inner wall of the top of the sliding groove. The sliding seat 5 is in sliding contact with the limiting groove 10, and the distance between the outer peripheral side of the sliding seat 5 and the inner wall surface of the limiting groove 10 is the same;

[0036] The first elastic member is arranged between the sliding seat 5 and the limiting groove 10 to form an elastic connection between the sliding seat 5 and the limiting groove 10 .

[0037] The utility model realizes the sliding cooperation between the bottom end of the ladder section 1 and the lower platform 2 through the first slider 3 and the second slider 4, thereby forming a sliding support, and by fixing the sliding seat 5 on the bottom surface of the first slider 3, the sliding seat 5 is slidably connected to the limiting groove 10, and the distance between the outer peripheral side and the inner wall surface of the limiting groove 10 is the same while sliding in contact with the limiting groove 10. Since the limiting groove 10 is arranged on the inner wall of the top end of the sliding groove, the sliding seat 5 is in sliding contact with the limiting groove 10, thereby reducing the sliding contact area between the first slider 3 and the second slider 4. At the same time, the first elastic member is arranged in the gap with the same distance between the sliding seat 5 and the limiting groove 10 to apply elastic support thereto, and ensure the uniformity of the sliding resistance, while enhancing the connection stability between the sliding seat 5 and the limiting groove 10, thereby improving the sliding vibration reduction effect.

[0038] Furthermore, it also includes:

[0039] The arc-shaped clamping seat 6 is welded to the bottom axis of the sliding seat 5 . A clamping groove 11 is formed on the inner wall of the bottom end of the limiting groove 10 . The arc-shaped clamping seat 6 is in sliding contact with the clamping groove 11 .

[0040] By using the arc-shaped clamping seat 6 fixedly connected to the bottom surface of the sliding seat 5, the arc-shaped clamping seat 6 is made to slide in contact with the clamping groove 11, and is further connected to the clamping groove 11 through the arc-shaped clamping seat 6 to improve the connection stability between the first slider 3 and the second slider 4. It can be understood that the arc surface of the arc-shaped clamping seat 6 is a circular arc surface, and the sliding seat 5 is a cylindrical structure. A sliding gap is generated between the first slider 3 and the second slider 4 through the sliding seat 5 so that the first slider 3 and the second slider 4 do not contact each other. Combined with the arc-shaped clamping seat 6 being connected to the clamping groove 11, when the first slider 3 and the second slider 4 slide relative to each other, the uniformity of the direction of the sliding resistance can be guaranteed.

[0041] Furthermore, the first elastic member includes:

[0042] The spring sheet 7 is distributed circumferentially around the sliding seat 5 , and two ends of the spring sheet 7 are respectively against the sliding seat 5 and the inner wall surface of the limiting groove 10 .

[0043] Furthermore, the spring sheet 7 is an annular wavy structure, and the protruding portion of the spring sheet 7 is configured to abut against the sliding seat 5 and the inner wall surface of the limiting groove 10 respectively.

[0044] By annularly arranging the spring sheet 7 on the sliding seat 5, and utilizing the protruding parts on both sides of its wavy structure to respectively abut against the sliding seat 5 and the limiting groove 10, the sliding seat 5 and the limiting groove 10 are elastically connected, and a vibration reduction effect is provided for the relative sliding between the first slider 3 and the second slider 4 on the basis of the supporting force generated by the sliding contact between the sliding seat 5 and the limiting groove 10.

[0045] Furthermore, a truncation is provided on the spring sheet 7 , and two sides of the truncation respectively constitute two ends of the spring sheet 7 , wherein one end is fixedly connected to the inner wall of the limiting groove 10 , and the other end is not in contact with the limiting groove 10 and the sliding seat 5 .

[0046] By arranging the spring sheet 7 with one end fixedly connected to the limiting groove 10 and the other end located in the gap between the sliding seat 5 and the limiting groove 10 and not in contact with the two, when the stairs receive vibration during daily use, the vibration is transmitted to the spring sheet 7, and the end of the spring sheet 7 that is not in contact with the sliding seat 5 and the limiting groove 10 is used to release the vibration transmission, so as to ensure the service life of the spring sheet 7 structure.

[0047] Furthermore, it also includes:

[0048] The second elastic member is arranged between the first slider 3 and the second slider 4 so as to elastically connect the first slider 3 and the second slider 4 .

[0049] Furthermore, the second elastic member includes:

[0050] A plurality of first spring sheets 8 and second spring sheets 9, and the area corresponding to the matching side wall of the first slider 3 and the inner wall of the groove constitute an elastic interval, and a plurality of first spring sheets 8 and second spring sheets 9 are distributed in the elastic interval in sequence, wherein the mutually close ends of the first spring sheets 8 and the second spring sheets 9 abut against each other, and the mutually distant ends are fixedly connected to the first slider 3 or the second slider 4 respectively.

[0051] Furthermore, the first elastic piece 8 and the second elastic piece 9 have the same arc-shaped structure, and the arc-shaped ends of the first elastic piece 8 and the second elastic piece 9 abut against each other.

[0052] By respectively arranging a plurality of first spring sheets 8 and second spring sheets 9 between the corresponding side wall surfaces between the first slider 3 and the second slider 4, the arc ends of the first spring sheets 8 and the second spring sheets 9 are abutted against each other, and the sides away from the arc ends are respectively fixed to the first slider 3 or the second slider 4, thereby improving the vibration reduction support strength between the first slider 3 and the second slider 4.

[0053] The working process of this embodiment is as follows:

[0054] When the cam 1 is in the state of being moved, the cam 12 is in the state of being moved along the cam 13 and the cam 14, so that the cam 12 can move freely, and the cam 12 can move freely, so that the cam 12 can move freely, and the cam 12 can move freely.

[0055] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0056] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A cast-in-place concrete slab staircase sliding support, characterized in that: include: A stair section (1) and a lower platform (2), wherein a top end of the lower platform (2) is defined with a groove; A first sliding block (3) is fixed at the bottom end of the ladder section (1) and has one end extending along the direction of the groove; A second sliding block (4) is fixed in the groove, and a sliding groove is defined on a side of the second sliding block (4) close to the first sliding block (3), and the first sliding block (3) is slidably fitted in the sliding groove; A sliding seat (5) is fixed on the first sliding block (3), a limiting groove (10) is provided on the inner wall of the top end of the sliding groove, the sliding seat (5) is in sliding contact with the limiting groove (10), and the distance between the outer peripheral side of the sliding seat (5) and the inner wall surface of the limiting groove (10) is the same; The first elastic member is arranged between the sliding seat (5) and the limiting groove (10) to form an elastic connection between the sliding seat (5) and the limiting groove (10).

2. The cast-in-place concrete slab staircase sliding support according to claim 1, characterized in that: Also includes: The arc-shaped clamping seat (6) is welded to the bottom axis of the sliding seat (5), and a clamping groove (11) is provided on the inner wall of the bottom end of the limiting groove (10), and the arc-shaped clamping seat (6) is in sliding contact with the clamping groove (11).

3. The cast-in-place concrete slab staircase sliding support according to claim 1, characterized in that: The first elastic member comprises: The spring sheet (7) is distributed circumferentially around the sliding seat (5), and two ends of the spring sheet (7) respectively abut against the sliding seat (5) and the inner wall surface of the limiting groove (10).

4. The cast-in-place concrete slab staircase sliding support according to claim 3, characterized in that: The spring sheet (7) is an annular wave-shaped structure, and the protruding portion of the spring sheet (7) is configured to abut against the inner wall surface of the sliding seat (5) and the limiting groove (10) respectively.

5. The cast-in-place concrete slab staircase sliding support according to claim 4 is characterized in that: The spring sheet (7) is provided with a truncation, and the two sides of the truncation respectively constitute the two ends of the spring sheet (7), wherein one end is fixedly connected to the inner side wall of the limiting groove (10), and the other end is not in contact with the limiting groove (10) and the sliding seat (5).

6. The cast-in-place concrete slab staircase sliding support according to claim 1, characterized in that: Also includes: The second elastic member is arranged between the first sliding block (3) and the second sliding block (4) so ​​as to elastically connect the first sliding block (3) and the second sliding block (4).

7. The cast-in-place concrete slab staircase sliding support according to claim 6, characterized in that: The second elastic member comprises: A plurality of first spring sheets (8) and second spring sheets (9), wherein the area where the side wall of the first slider (3) matches the inner wall of the groove forms an elastic zone, and the plurality of first spring sheets (8) and second spring sheets (9) are sequentially distributed in the elastic zone at intervals, wherein the mutually approaching ends of the first spring sheets (8) and the second spring sheets (9) abut against each other, and the mutually distant ends are respectively fixed to the first slider (3) or the second slider (4).

8. The cast-in-place concrete slab staircase sliding support according to claim 7, characterized in that: The first spring piece (8) and the second spring piece (9) have the same arc-shaped structure, and the arc-shaped ends of the first spring piece (8) and the second spring piece (9) abut against each other.

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