Stair rubber sliding support

Abstract

The stair rubber sliding support comprises an upper connecting plate, a lower connecting plate and a rubber part, the upper connecting plate and the lower connecting plate are provided with embedded connecting pieces used for being connected with a stair correspondingly, the upper connecting plate and the lower connecting plate are arranged on the upper side and the lower side of the rubber part correspondingly, and the upper connecting plate, the lower connecting plate and the rubber part jointly form an inner cavity; the inner cavity is provided with a plurality of injection holes communicated with the outside, the injection holes are used for injecting the lubricating filler into the inner cavity, and the sliding part is formed after the inner cavity is filled with the lubricating filler. The upper connecting plate and the lower connecting plate are connected with the stair part through the embedded connecting pieces respectively, the rubber part is fixedly connected with the upper connecting plate and the lower connecting plate through the heat vulcanization technology, an inner cavity with the good sealing effect is formed, lubricating filler is injected into the inner cavity through the injection hole, and the sliding part is formed. And the embedded connecting pieces are embedded in the upper connecting plate and the lower connecting plate, so that the installation difficulty is reduced, and the installation of the stair sliding support is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of building stairs, in particular to a stair rubber sliding support. Background Art

[0002] The stair rubber sliding support is an important component used in the stair structure. It mainly allows the stairs to slide within a certain range under the action of external forces such as earthquakes, thereby reducing the impact of the stairs on the main structure, avoiding serious damage to the stairs during earthquakes, and ensuring the safety of the evacuation passage for personnel in case of emergencies.

[0003] The patent with publication number CN215484183U relates to a stair structure based on a sliding support, including a high-end stair beam, a tread section, a low-end stair beam, and a building surface layer arranged above the low-end stair beam. A sliding support is arranged between the tread section and the low-end stair beam; the sliding support includes a first sliding cushion layer arranged between the tread section and the bottom stair beam and a second sliding cushion layer arranged between the tread section and the building surface layer; the first sliding cushion layer includes an upper embedded steel plate, a polytetrafluoroethylene plate, and a lower embedded steel plate arranged in sequence.

[0004] In the above technical solution, the cost of the stair isolation rubber support is high, there are many accessories, and the installation difficulty at the construction site is large. Content of the Utility Model

[0005] In order to facilitate the installation of the stair sliding support, the present application provides a stair rubber sliding support.

[0006] The stair rubber sliding support provided by the present application adopts the following technical solution:

[0007] A stair rubber sliding support includes an upper connecting plate, a lower connecting plate, and a rubber part. Embedded connecting parts for connecting the stairs are respectively arranged on the upper connecting plate and the lower connecting plate. The upper connecting plate and the lower connecting plate are respectively arranged on the upper and lower sides of the rubber part. An inner cavity is jointly formed by the upper connecting plate, the lower connecting plate, and the rubber part. A plurality of injection holes communicating with the outside are opened on the inner cavity. The injection holes are used for injecting lubricating filler into the inner cavity. When the lubricating filler fills the inner cavity, a sliding part is jointly formed.

[0008] By adopting the above technical solution, the upper connecting plate and the lower connecting plate are respectively connected to the stair part through the embedded connecting parts. Then, the rubber part is fixedly connected to the upper connecting plate and the lower connecting plate through the hot vulcanization technology to form an inner cavity with a good sealing effect. Then, the lubricating filler is injected into the inner cavity through the injection holes to form a sliding part, making the displacement of the stairs in the horizontal direction more free and smooth. Moreover, the embedded connecting parts are directly embedded on the upper connecting plate and the lower connecting plate, reducing the installation difficulty and the manufacturing cost, and being more competitive in the market, which is convenient for the installation of the stair sliding support.

[0009] Preferably, it further includes a bolt, one end of the bolt is threadedly connected to the injection hole, and a plug is provided at one end of the bolt. When the bolt is threadedly connected to the injection hole, the plug is flush with the surface of the inner cavity.

[0010] By adopting the above technical solution, the bolt is threadedly connected to the injection hole to facilitate the opening and closing of the injection hole and the injection of the lubricating filler into the inner cavity; when the bolt is threadedly connected to the injection hole, the plug is flush with the surface of the inner cavity, which can reduce the possibility of the sliding part being blocked during sliding.

[0011] Preferably, the lubricating filler is graphite powder.

[0012] By adopting the above technical solution, graphite powder has an extremely low coefficient of friction and can form a lubricating film on the surface of the inner cavity, greatly reducing the frictional resistance between the staircase and the support structure. This makes the sliding of the staircase in the horizontal direction smoother. Especially under external forces such as earthquakes, it can effectively reduce the interaction force between the staircase and the main structure. Moreover, graphite powder has high-temperature resistance, and graphite can still maintain stable performance at high temperatures and is not prone to deformation or failure. This is very important for buildings that may face high-temperature situations such as fires, ensuring that the staircase rubber sliding bearing can still function under extreme conditions.

[0013] Preferably, one side surface of the rubber part close to the inner cavity is concave-convex, and the sliding part is fixedly connected to the rubber part.

[0014] By adopting the above technical solution, by making the surface of the rubber part concave-convex, the bonding force between the graphite powder and the rubber part is improved, facilitating the fixed connection between the sliding part and the rubber part, reducing the possibility of separation between the rubber part and the sliding part during the sliding of the bearing, and enhancing the integrity and stability of the bearing.

[0015] Preferably, grooves that can cooperate with the upper and lower ends of the rubber part are respectively formed on the opposite side surfaces of the upper connecting plate and the lower connecting plate, and the upper and lower ends of the rubber part are respectively arranged in the grooves of the upper connecting plate and the lower connecting plate.

[0016] By adopting the above technical solution, by arranging the rubber part in the grooves of the upper connecting plate and the lower connecting plate at the same time, the installation of the rubber part is positioned to facilitate the installation of the staircase sliding bearing; at the same time, the sealing performance of the inner cavity is improved by the labyrinth sealing method.

[0017] Preferably, a plurality of vacuum holes are respectively formed in the bottom walls of the grooves, connecting rods are respectively slidably connected in the plurality of vacuum holes, the rubber part is arranged on the plurality of connecting rods at the same time, and when the rubber part does not deform, one end of the connecting rod away from the rubber part always abuts against the bottom wall of the vacuum hole.

[0018] By adopting the above technical solution, the rubber part is arranged on the connecting rod. When the rubber part is separated from the surface of the groove, if the support slides and deforms the rubber part, the negative pressure in the vacuum hole makes the connecting rod always slide towards the bottom wall side of the vacuum hole, so as to reduce the possibility of the rubber part separating from the groove.

[0019] Preferably, connecting parts are respectively arranged at one ends of the connecting rod far away from the bottom wall of the vacuum hole, and the connecting parts are embedded into the rubber part and fixedly connected with the rubber part.

[0020] By adopting the above technical solution, by arranging the connecting parts, the contact area between the rubber part and the connecting rod is increased, and the possibility of the rubber part separating from the connecting rod is reduced.

[0021] Preferably, the embedded connecting pieces are a plurality of anchor bolts, and the plurality of anchor bolts are respectively fixedly connected to the upper connecting plate and the lower connecting plate.

[0022] By adopting the above technical solution, by directly embedding and fixedly connecting the plurality of anchor bolts to the upper connecting plate and the lower connecting plate, the installation difficulty is reduced, and the manufacturing cost is also reduced.

[0023] The technical effects of the present utility model are mainly reflected in the following aspects:

[0024] 1. By arranging the injection holes in the present utility model, the upper connecting plate and the lower connecting plate are respectively connected to the staircase part through the embedded connecting pieces, and then the rubber part is fixedly connected to the upper connecting plate and the lower connecting plate through the hot vulcanization technology to form an inner cavity with good sealing effect. Then, lubricating filler is injected into the inner cavity through the injection holes to form a sliding part, so that the displacement of the staircase in the horizontal direction is more free and smooth. Moreover, the embedded connecting pieces are directly embedded in the upper connecting plate and the lower connecting plate, reducing the installation difficulty and the manufacturing cost, and being more competitive in the market, which is convenient for the installation of the staircase sliding support;

[0025] 2. By arranging the bolts and the plugs in the present utility model, the bolts are threadedly connected to the injection holes to facilitate the opening and closing of the injection holes and the injection of the lubricating filler into the inner cavity; when the bolts are threadedly connected to the injection holes, the plugs are flush with the surface of the inner cavity, which can reduce the possibility of the sliding part being blocked during sliding;

[0026] 3. By arranging the grooves in the present utility model, by arranging the rubber part in the grooves of the upper connecting plate and the lower connecting plate at the same time, the installation of the rubber part is positioned, which is convenient for the installation of the staircase sliding support; at the same time, by the method of labyrinth seal, the sealing performance of the inner cavity is improved. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application.

[0028] Figure 2It is a schematic diagram of the injection hole structure of the embodiment of the present application.

[0029] Figure 3 It is along Figure 2 The enlarged view at position A in

[0030] Figure 4 It is along Figure 2 The enlarged view at position B in

[0031] Explanation of reference numerals: 1, upper connecting plate; 2, lower connecting plate; 3, rubber part; 4, embedded connecting piece; 41, anchor bolt; 5, groove; 51, vacuum hole; 52, connecting rod; 53, connecting part; 6, inner cavity; 7, injection hole; 71, bolt; 72, plug; 8, sliding part. Detailed implementation manners

[0032] The following further elaborates on the present application in conjunction with Figures 1-4 to make the technical solution of the present application easier to understand and master.

[0033] The embodiment of the present application discloses a stair rubber sliding support.

[0034] Referring to Figure 1 and Figure 2 , a stair rubber sliding support of this embodiment includes an upper connecting plate 1, a lower connecting plate 2 and a rubber part 3. Embedded connecting pieces 4 for connecting the stairs are respectively provided on the upper connecting plate 1 and the lower connecting plate 2. The embedded connecting pieces 4 are multiple anchor bolts 41, and the multiple anchor bolts 41 are respectively evenly distributed and fixedly connected to the upper connecting plate 1 and the lower connecting plate 2. By directly inlaying and fixedly connecting the multiple anchor bolts 41 to the upper connecting plate 1 and the lower connecting plate 2, the installation difficulty is reduced, and the manufacturing cost is also reduced.

[0035] Referring to Figures 1-4 , the upper connecting plate 1 and the lower connecting plate 2 are respectively located on the upper and lower sides of the rubber part 3. Grooves 5 that can cooperate with the upper and lower ends of the rubber part 3 are respectively opened on the opposite side surfaces of the upper connecting plate 1 and the lower connecting plate 2. The upper and lower ends of the rubber part 3 are simultaneously fixedly connected to the grooves 5 of the upper connecting plate 1 and the lower connecting plate 2 through hot vulcanization technology. By arranging the rubber part 3 in the grooves 5 of the upper connecting plate 1 and the lower connecting plate 2 at the same time, the installation of the rubber part 3 is positioned, which is convenient for the installation of the stair sliding support.

[0036] Referring to Figures 1-4 , the cross-sections of the groove 5 and the rubber part 3 are respectively arranged in a square shape. When the rubber part 3 is fixedly connected to the grooves 5 on the upper connecting plate 1 and the lower connecting plate 2, the upper connecting plate 1, the lower connecting plate 2 and the rubber part 3 jointly form an inner cavity 6. A number of injection holes 7 communicating with the outside are opened on the inner cavity 6. The injection holes 7 are used for injecting lubricating filler into the inner cavity 6. When the lubricating filler fills the inner cavity 6, a sliding part 8 is jointly formed. The lubricating filler is graphite powder.

[0037] Referring to Figures 1-4 , the upper connecting plate 1 and the lower connecting plate 2 are respectively connected to the stair part through anchor bolts 41. The rear rubber part 3 is fixedly connected to the upper connecting plate 1 and the lower connecting plate 2 by vulcanization technology to form an inner cavity 6 with a good sealing effect. Then, lubricating filler is injected into the inner cavity 6 through the injection holes 7 to form a sliding part 8, making the displacement of the stair in the horizontal direction more free and smooth. Moreover, the embedded connecting piece 4 is directly embedded on the upper connecting plate 1 and the lower connecting plate 2, reducing the installation difficulty, also reducing the manufacturing cost, being more competitive in the market, and facilitating the installation of the stair sliding support.

[0038] Referring to Figure 2 and Figure 4 , it further includes a plurality of bolts 71. The plurality of bolts 71 respectively correspond to the plurality of injection holes 7. One ends of the plurality of bolts 71 are respectively threadedly connected to the injection holes 7. A plug is provided at one end of the bolt 71. When the bolt 71 is threadedly connected to the injection hole 7, the plug is flush with the surface of the inner cavity 6. By threadedly connecting the bolt 71 to the injection hole 7, it is convenient to open and close the injection hole 7 and facilitate the injection of the lubricating filler into the inner cavity 6; when the bolt 71 is threadedly connected to the injection hole 7, making the plug flush with the surface of the inner cavity 6 can reduce the possibility of the sliding part 8 being blocked during sliding.

[0039] Referring to Figure 2 and Figure 3 , one side surface of the rubber part 3 close to the inner cavity 6 is concavo-convexly arranged, and the sliding part 8 is fixedly connected to the rubber part 3. By making the surface of the rubber part 3 concavo-convex, the bonding force between the graphite powder and the rubber part 3 is improved, facilitating the fixed connection between the sliding part 8 and the rubber part 3, reducing the possibility of the separation between the rubber part 3 and the sliding part 8 during the sliding of the support, so as to enhance the integrity and stability of the support.

[0040] Referring to Figure 2 and Figure 3 , a plurality of vacuum holes 51 are respectively opened on the bottom walls of the two grooves 5. Connecting rods 52 are respectively slidably connected in the plurality of vacuum holes 51. Connecting parts 53 are respectively provided at one ends of the connecting rods 52 away from the bottom walls of the vacuum holes 51. The connecting parts 53 are embedded into the rubber part 3 and fixedly connected to the rubber part 3. The inside of the vacuum holes 51 is set to be in negative pressure vacuum. When the rubber part 3 does not deform, one end of the connecting rod 52 away from the rubber part 3 always abuts against the bottom wall of the vacuum hole 51. By arranging the rubber part 3 on the connecting rod 52, when the rubber part 3 is separated from the surface of the groove 5, if the support slides and the rubber part 3 deforms, the negative pressure in the vacuum hole 51 makes the connecting rod 52 always slide towards the bottom wall side of the vacuum hole 51 to reduce the possibility of the rubber part 3 detaching from the groove 5. By providing the connecting part 53, the contact area between the rubber part 3 and the connecting rod 52 is increased, reducing the possibility of the rubber part 3 detaching from the connecting rod 52.

[0041] Of course, the above are only typical examples of this application. In addition, this application can also have many other specific implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by this application.

Claims

1. A staircase rubber sliding bearing, characterized in that: The invention comprises an upper connecting plate (1), a lower connecting plate (2) and a rubber part (3), wherein the upper connecting plate (1) and the lower connecting plate (2) are respectively provided with embedded connecting parts (4) for connecting stairs, and the upper connecting plate (1) and the lower connecting plate (2) are respectively arranged on the upper and lower sides of the rubber part (3), and the upper connecting plate (1), the lower connecting plate (2) and the rubber part (3) jointly form an inner cavity (6), and the inner cavity (6) is provided with a plurality of injection holes (7) connected to the outside, and the injection holes (7) are used to inject lubricating fillers into the inner cavity (6), and when the lubricating fillers fill the inner cavity (6), they jointly form a sliding part (8).

2. The staircase rubber sliding bearing according to claim 1, characterized in that: It also includes a bolt (71), one end of which is threadedly connected to the injection hole (7), and one end of which is provided with a plug. When the bolt (71) is threadedly connected to the injection hole (7), the plug is flush with the surface of the inner cavity (6).

3. The staircase rubber sliding bearing according to claim 1, characterized in that: The lubricating filler is graphite powder.

4. The staircase rubber sliding bearing according to claim 3, characterized in that: The side surface of the rubber part (3) close to the inner cavity (6) is arranged in a concave-convex manner, and the sliding part (8) is fixedly connected to the rubber part (3).

5. The staircase rubber sliding bearing according to claim 1, characterized in that: Grooves (5) that can match with the upper and lower ends of the rubber part (3) are respectively provided on the side surfaces of the upper connecting plate (1) and the lower connecting plate (2) on which they face each other. The upper and lower ends of the rubber part (3) are respectively arranged in the grooves (5) of the upper connecting plate (1) and the lower connecting plate (2).

6. The staircase rubber sliding bearing according to claim 5, characterized in that: The bottom wall of the groove (5) is respectively provided with a plurality of vacuum holes (51), and connecting rods (52) are respectively slidably connected in the plurality of vacuum holes (51). The rubber part (3) is simultaneously arranged on the plurality of connecting rods (52), and when the rubber part (3) is not deformed, a section of the connecting rod (52) away from the rubber part (3) always abuts against the bottom wall of the vacuum hole (51).

7. The staircase rubber sliding bearing according to claim 6, characterized in that: A connecting portion (53) is provided at one end of the connecting rod (52) away from the bottom wall of the vacuum hole (51); the connecting portion (53) is embedded in the rubber portion (3) and fixedly connected to the rubber portion (3).

8. The staircase rubber sliding bearing according to claim 1, characterized in that: The embedded connection parts (4) are a plurality of anchor bolts (41), and the plurality of anchor bolts (41) are respectively fixedly connected to the upper connection plate (1) and the lower connection plate (2).

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