Cantilever folding beam type concrete stair

Abstract

The utility model relates to the technical field of concrete stairs, in particular to a cantilever folding beam type concrete stair which comprises a cantilever folding beam type concrete stair body and connecting seats, and the two sides of the cantilever folding beam type concrete stair body are fixedly connected with the connecting seats on the two sides respectively. A plurality of fixing structures are arranged in the middle of the cantilever folding beam type concrete stair. A user pulls pull blocks on the two sides, the pull blocks drive guide blocks to move rightwards, the guide blocks slide along a round rod, the guide blocks drive second springs to be compressed, the guide blocks and spherical blocks are released from abutting, so that the steps are detached, in the same way, new steps are connected with the cantilever folding beam type concrete stairs, then the pull blocks are loosened, and then the steps are detached. And the elastic force of the second spring enables the spherical block to reset so as to fix the step, so that the step is replaced, and the situation that the use and attractiveness of the cantilever folding beam type concrete stair are affected due to the fact that the step is damaged is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete stairs, in particular to a cantilevered folding beam type concrete staircase. Background Art

[0002] Stairs are important building structural components. Stairs include a lower connecting plate, a stair flight, an upper connecting plate, a supporting plate and a stair platform. The stair flight includes a number of steps. The upper connecting plate, the lower connecting plate, the supporting plate and the stair platform are all horizontally arranged. The lower connecting plate is connected to the ground. The horizontal height of the upper connecting plate is higher than that of the lower connecting plate. The stair flight is connected between the upper connecting plate and the lower connecting plate; the supporting plate is located below the upper connecting plate, and the upper surface of the supporting plate is connected to the lower surface of the upper connecting plate. The sides of the supporting plate and the upper connecting plate away from the stair flight are connected to the stair platform.

[0003] For example, a precast concrete staircase with the authorization announcement number CN213710151U, the upper connecting plate, lower connecting plate, stair steps, receiving plate and stair platform in the above document are all prefabricated. When building the stairs, the above components are moved to the corresponding positions and installed. Compared with cast-in-place stairs, the construction process is simple and the construction period is short; the upper connecting plate is placed on the receiving plate, and when the first clamping groove is clamped with the clamping strip, the upper connecting plate can be limited on the receiving plate, and the upper connecting plate and the receiving plate are fixed by steel nails, which is convenient for limiting the upper connecting plate on the receiving plate, and has the effect of facilitating construction. However, the steps of the cantilever folded beam concrete staircase in the above document are an integrated structure, which makes Replacing the top end surface of the steps may cause the cantilevered folding beam type concrete stairs to be easily damaged by the external environment under long-term use, thereby affecting the aesthetics of the cantilevered folding beam type concrete stairs and the use of the cantilevered folding beam type concrete stairs, and the cantilevered folding beam type concrete stairs and the stepping platform in the above-mentioned documents are connected and fixed by steel nails and bolts, and this method requires the use of tools of corresponding sizes to rotate the bolts, which makes the connection operation between the cantilevered folding beam type concrete stairs and the stepping platform in the above-mentioned documents cumbersome and inconvenient to connect the cantilevered folding beam type concrete stairs. Utility Model Content

[0004] The utility model aims to solve the problem that steps cannot be replaced and the problem that it is inconvenient to connect cantilevered folded beam type concrete stairs, and proposes a cantilevered folded beam type concrete staircase.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A cantilever folding beam type concrete staircase is designed, comprising a cantilever folding beam type concrete staircase and a connecting seat, wherein two sides of the cantilever folding beam type concrete staircase are respectively fixedly connected to the connecting seats on both sides, a plurality of fixing structures are arranged in the middle of the cantilever folding beam type concrete staircase, and the fixing structures may further comprise a spherical block, the outer ends of the plurality of spherical blocks are tightly pressed against the cantilever folding beam type concrete staircase, the inner ends of the spherical blocks on both sides are tightly pressed against a guide block, the end of the guide block is slidably connected to a pull block, the inner wall of the guide block is slidably connected to a round rod, the middle part of the round rod is fixedly connected to one end of a second spring, and the other end of the second spring is fixedly connected to the guide block.

[0007] Preferably, the left end of the round rod is fixedly connected to the step, and the middle parts of the plurality of spherical blocks are slidably connected to the step.

[0008] Preferably, the outer wall of the pull block is slidably connected to the step, and the inner side of the step is in contact with the cantilevered folded beam type concrete staircase.

[0009] Preferably, the outer walls of the connecting seats on both sides are respectively fitted with the lower stepping platform and the upper stepping platform.

[0010] Preferably, a connecting structure is provided on the outer side of the connecting seat, and the connecting structure includes a fixed block, the inner ends of the multiple fixed blocks are tightly pressed against the connecting seat, the outer ends of the fixed blocks are fixedly connected to the threaded blocks, the inner walls of the threaded blocks on both sides are threadedly connected to the double-headed screw, the outer ends of the threaded blocks are fixedly connected to the sliding block, and the inner ends of the fixed blocks on both sides are respectively fixedly connected to the two ends of the first spring.

[0011] Preferably, the plurality of sliding blocks are respectively connected in sliding connection with the upper and lower jogging platforms, and the two sides of the double-headed screws are respectively connected in rotation with the upper and lower jogging platforms.

[0012] The utility model provides a cantilever folding beam type concrete staircase, which has the beneficial effect that: when the user pulls the pull blocks on both sides, the pull blocks drive the guide blocks to move rightward, the guide blocks slide along the round rod, the guide blocks drive the second spring to compress, the guide blocks and the spherical blocks are released from being tightly pressed, so that the steps are disassembled, and similarly, new steps are connected to the cantilever folding beam type concrete staircase, and then the pull blocks are released, the elastic force of the second spring resets the spherical blocks to fix the steps, so that the steps can be replaced, and the situation that the damage of the steps affects the use and appearance of the cantilever folding beam type concrete staircase is avoided;

[0013] By inserting the upper and lower step platforms into the outside of the connecting seat, and then rotating the double-headed screws on both sides in turn, the screws drive the threaded blocks to move outward, and the threaded blocks drive the sliders to slide along the corresponding slide grooves, and at the same time the threaded blocks drive the fixed block to press against the connecting seat. At this time, the first spring is in a stretched state, and the elastic force of the first spring acts on the threaded block through the fixed block to fill the gap between the threaded block and the double-headed screws, thereby avoiding loosening of the fixed block and realizing the connection of the two step platforms. In this way, the original connection method is replaced, making the connection between the cantilevered folded beam type concrete stairs and the step platform more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 3 for Figure 2 The structural diagram of A in the figure;

[0017] Figure 4 for Figure 2 Schematic diagram of the structure of B;

[0018] Figure 5 for Figure 2 Schematic diagram of the side structure.

[0019] In the figure: 1. cantilever folding beam type concrete staircase, 2. connecting seat, 3. connecting structure, 301. double-headed screw, 302. threaded block, 303. slider, 304. fixed block, 305. first spring, 4. fixed structure, 4a1. pull block, 4a2. guide block, 4a3. spherical block, 4a4. round rod, 4a5. second spring, 4b1. pull ring, 5. steps, 6. upper stepping platform, 7. lower stepping platform. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] Embodiment 1:

[0022] Refer to the attached Figure 1-5: In the present embodiment, a cantilever folding beam type concrete staircase comprises a cantilever folding beam type concrete staircase 1 and a connecting seat 2, the two sides of the cantilever folding beam type concrete staircase 1 are respectively fixedly connected with the connecting seats 2 on both sides, a plurality of fixing structures 4 are arranged in the middle of the cantilever folding beam type concrete staircase 1, and the fixing structure 4 can also include a spherical block 4a3, the outer ends of the plurality of spherical blocks 4a3 are tightly pressed against the cantilever folding beam type concrete staircase 1, and the pull blocks 4a1 on both sides are pulled, and the pull blocks 4a1 drive the guide blocks 4a2 to move rightward, and the guide blocks 4a2 slide along the round rod 4a4, and the guide blocks 4a2 drive the second spring 4a5 to be compressed, and the guide blocks 4a2 and the spherical blocks 4a3 are released from being pressed, thereby disassembling the steps 5, and similarly connecting the new steps 5 to the cantilever folding beam type concrete staircase 1, and then loosening. Open the pull block 4a1, and the elastic force of the second spring 4a5 resets the spherical block 4a3 to fix the step 5, thereby realizing the replacement of the step. The inner ends of the spherical blocks 4a3 on both sides are tightly pressed against the guide block 4a2, and the end of the guide block 4a2 is slidably connected to the pull block 4a1, the inner wall of the guide block 4a2 is slidably connected to the round rod 4a4, the middle part of the round rod 4a4 is fixedly connected to one end of the second spring 4a5, the other end of the second spring 4a5 is fixedly connected to the guide block 4a2, the left end of the round rod 4a4 is fixedly connected to the step 5, the middle parts of the multiple spherical blocks 4a3 are slidably connected to the step 5, the outer wall of the pull block 4a1 is slidably connected to the step 5, the inner side of the step 5 is fitted with the cantilevered folding beam type concrete staircase 1, and the outer walls of the connecting seats 2 on both sides are respectively fitted with the lower step platform 7 and the upper step platform 6.

[0023] A connecting structure 3 is provided on the outer side of the connecting seat 2, and the connecting structure 3 includes a fixed block 304, the inner ends of the plurality of fixed blocks 304 are tightly pressed against the connecting seat 2, the outer ends of the fixed blocks 304 are fixedly connected to the threaded block 302, the inner walls of the threaded blocks 302 on both sides are threadedly connected to the double-headed screw 301, the upper stepping platform 6 and the lower stepping platform 7 are inserted into the outer side of the connecting seat 2, and then the double-headed screws 301 on both sides are rotated in turn, the screw 301 drives the threaded block 302 to move outward, the threaded block 303 drives the slider 303 to slide along the corresponding slide groove, and at the same time the threaded block 303 drives the fixed block 304 to press against the connecting seat 2 At this time, the first spring 305 is in a stretched state, and the elastic force of the first spring 305 acts on the threaded block 302 through the fixed block 304, thereby compensating the gap between the threaded block 302 and the double-headed screw 301, thereby avoiding the loosening of the fixed block 304 and realizing the connection between the two platforms. The outer end of the threaded block 302 is fixedly connected to the slider 303, and the inner ends of the fixed blocks 304 on both sides are respectively fixedly connected to the two ends of the first spring 305, and the multiple sliders 303 are respectively slidably connected to the upper platform 6 and the lower platform 7, and the two sides of the double-headed screws 301 on both sides are respectively rotatably connected to the upper platform 6 and the lower platform 7.

[0024] Working principle:

[0025] The user pulls the pull blocks 4a1 on both sides, and the pull blocks 4a1 drive the guide blocks 4a2 to move rightward, and the guide blocks 4a2 slide along the round rod 4a4, and the guide blocks 4a2 drive the second spring 4a5 to compress, and the guide blocks 4a2 and the spherical blocks 4a3 are released from being pressed tightly, so that the step 5 is disassembled, and the new step 5 is connected to the cantilever folding beam type concrete staircase 1 in the same way, and then the pull blocks 4a1 are released, and the elastic force of the second spring 4a5 causes the spherical blocks 4a3 to reset, so that the step 5 is fixed, so that the step can be replaced, and the situation that the step is damaged and affects the use and appearance of the cantilever folding beam type concrete staircase is avoided;

[0026] By inserting the upper and lower jogging platforms 6 and 7 into the outside of the connecting seat 2, and then rotating the double-headed screws 301 on both sides in turn, the screws 301 drive the threaded blocks 302 to move outward, and the threaded blocks 303 drive the slider 303 to slide along the corresponding slide grooves. At the same time, the threaded blocks 303 drive the fixed block 304 to press against the connecting seat 2. At this time, the first spring 305 is in a stretched state. The elastic force of the first spring 305 acts on the threaded block 302 through the fixed block 304, thereby filling the gap between the threaded block 302 and the double-headed screw 301, thereby avoiding the loosening of the fixed block 304 and realizing the connection between the two jogging platforms. In this way, the original connection method is replaced, making the connection between the cantilevered folded beam type concrete stairs and the jogging platform more convenient.

[0027] Embodiment 2:

[0028] Refer to the attached Figure 1-5 In the present embodiment, a cantilevered folded beam type concrete staircase is provided, wherein the fixed structure 4 may further include a pull ring 4b1, the top of the pull ring 4b1 is rotatably connected to the pull block 4a1, and the pull ring 4b1 is used to make it more convenient to pull the pull block 4a1.

[0029] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A cantilever folding beam type concrete staircase, comprising a cantilever folding beam type concrete staircase (1) and a connecting seat (2), wherein two sides of the cantilever folding beam type concrete staircase (1) are respectively fixedly connected to the connecting seats (2) on both sides, and characterized in that: A plurality of fixed structures (4) are arranged in the middle of the cantilever folding beam type concrete staircase (1), and the fixed structure (4) may further include a spherical block (4a3), the outer ends of the plurality of spherical blocks (4a3) are tightly abutted against the cantilever folding beam type concrete staircase (1), the inner ends of the spherical blocks (4a3) on both sides are tightly abutted against the guide block (4a2), the end of the guide block (4a2) is slidably connected to the pull block (4a1), the inner wall of the guide block (4a2) is slidably connected to the round rod (4a4), the middle of the round rod (4a4) is fixedly connected to one end of the second spring (4a5), and the other end of the second spring (4a5) is fixedly connected to the guide block (4a2).

2. A cantilever folded beam concrete staircase according to claim 1, characterized in that: The left end of the round rod (4a4) is fixedly connected to the step (5), and the middle parts of the plurality of spherical blocks (4a3) are slidably connected to the step (5).

3. The cantilever folded beam concrete staircase according to claim 1, characterized in that: The outer wall of the pull block (4a1) is slidably connected to the step (5), and the inner side of the step (5) is in contact with the cantilevered folding beam type concrete staircase (1).

4. The cantilever folded beam concrete staircase according to claim 1, characterized in that: The outer walls of the connecting seats (2) on both sides are respectively fitted with the lower stepping platform (7) and the upper stepping platform (6).

5. The cantilever folded beam concrete staircase according to claim 1, characterized in that: A connection structure (3) is provided on the outer side of the connection seat (2), and the connection structure (3) comprises a fixed block (304), the inner ends of the plurality of fixed blocks (304) are tightly abutted against the connection seat (2), the outer ends of the fixed blocks (304) are fixedly connected to the threaded block (302), the inner walls of the threaded blocks (302) on both sides are threadedly connected to the double-headed screw (301), the outer ends of the threaded blocks (302) are fixedly connected to the slider (303), and the inner ends of the fixed blocks (304) on both sides are respectively fixedly connected to the two ends of the first spring (305).

6. The cantilever folded beam concrete staircase according to claim 5, characterized in that: The plurality of sliding blocks (303) are respectively connected to the upper slow-moving platform (6) and the lower slow-moving platform (7) in a sliding manner, and the two sides of the double-headed screw rod (301) are respectively connected to the upper slow-moving platform (6) and the lower slow-moving platform (7) in a rotational manner.

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