An assembled stair

Abstract

The utility model discloses an assembly type stair relates to assembly type stair technical field, an assembly type stair, including stair body, the top one side fixed mounting of stair body has the protection board, and the inside one side of stair body is clamped and has the fixed cylinder, the inside of fixed cylinder is provided with first installation slot, the bottom fixed mounting of protection board has the clamping post, the inner wall one side of fixed cylinder is provided with first sliding slot, first sliding slot is linked with first installation slot, the utility model discloses through being close to stair body vertically downwards to protection board, and the resistance block is inserted into first installation slot and is in contact with the clamping block, makes a plurality of clamping blocks retract into first sliding slot, when resistance block gradually moves downward, and the clamping post moves with resistance block, and the clamping groove is moved to the inside of the clamping groove of clamping post with the force of compression spring reset, makes the clamping block insert the inside of clamping post, and the protection board and clamping post after replacement are fixed.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated staircase technology, specifically a prefabricated staircase. Background Technology

[0002] Prefabricated staircases are assembled components made up of multiple stair slabs joined together. They feature fast construction speed, convenient operation, and high appearance quality, and can meet the requirements of green buildings for high efficiency, high quality, low cost, and low energy consumption.

[0003] Traditional prefabricated staircases install tread corner protectors during installation to protect the edges of the treads from damage. However, after long-term use, the treads become damaged, reducing the protective effect on the treads. Tread corner protectors are often glued to the outside corners of the treads, making replacement inconvenient and leaving residual glue.

[0004] To address these issues, we designed a prefabricated staircase. Utility Model Content

[0005] The purpose of this utility model is to provide a prefabricated staircase to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a prefabricated staircase, including a staircase body. A protective plate is fixedly installed on one side of the top of the staircase body. A fixing cylinder is snapped into one side of the interior of the staircase body. A first mounting groove is opened inside the fixing cylinder. A snap-fit ​​post is fixedly installed at the bottom of the protective plate. A first sliding groove is opened on one side of the inner wall of the fixing cylinder. The first sliding groove communicates with the first mounting groove. A compression spring is fixedly installed inside the first sliding groove. One end of the compression spring is fixedly connected to one side of the inner wall of the first sliding groove. A snap-fit ​​block is fixedly connected to the other end of the compression spring. A snap-fit ​​groove is opened on one side of the snap-fit ​​post. The snap-fit ​​block is inserted into the snap-fit ​​groove.

[0007] Furthermore, a second mounting groove is provided on one side of the staircase body, and a sliding member is slidably connected inside the second mounting groove. A telescopic spring is fixedly connected to one side of the sliding member, and the other end of the telescopic spring is fixedly connected to the second mounting groove. A round rod is fixedly connected to the side of the sliding member away from the telescopic spring, and the round rod is inserted into the inside of the fixed cylinder.

[0008] Furthermore, a circular groove is provided on the top of the protective plate, and a rotating component is rotatably installed inside the circular groove. A limit groove is provided on the top of the rotating component, and the rotating component is fixedly connected to the snap-fit ​​post through a rotating shaft.

[0009] Furthermore, an abutment block is fixedly installed at the bottom of the snap-fit ​​post, and the snap-fit ​​post and the abutment block are inserted into the inside of the first mounting groove.

[0010] Furthermore, a chamfer is provided on one side of the snap-fit ​​block, and the chamfer abuts against the snap-fit ​​post.

[0011] Furthermore, the number of the snap-fit ​​blocks is set to four, and the four snap-fit ​​blocks are inserted into one side of the inner wall of the first mounting groove at equal intervals.

[0012] Furthermore, a lever is fixedly connected to the top of the slider, and the lever is disposed inside the second mounting groove.

[0013] Furthermore, slots are provided on both sides of the fixed cylinder, and the number of round rods matches the number of slots, with both round rods inserted into the inside of the fixed cylinder.

[0014] Compared with the prior art, the beneficial effects of this utility model are: The replacement protective plate is placed vertically downwards close to the stair body. The abutment block is inserted into the first mounting groove and abuts against the snap-fit ​​block, causing multiple snap-fit ​​blocks to retract into the first sliding groove. As the abutment block gradually moves downwards, the snap-fit ​​post moves with the abutment block. The snap-fit ​​groove is pushed into the snap-fit ​​groove of the snap-fit ​​post by the force of the compression spring, so that the snap-fit ​​block is inserted into the interior of the snap-fit ​​post, fixing the protective plate and the snap-fit ​​post. When the parts inside the fixed cylinder are damaged, the fixing effect of the fixed cylinder deteriorates, and the fixed cylinder needs to be replaced. The sliding part can be driven to move inside the second mounting groove. The sliding part drives the round rod to move. The telescopic spring is squeezed by the sliding part, and the round rod can be pulled out from one side of the fixed cylinder. After the limitation on the fixed cylinder is released, the fixed cylinder can be replaced. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded view of the staircase body and protective plate of this utility model; Figure 3 This is a cross-sectional view of the snap-fit ​​post of this utility model installed inside the fixed cylinder; Figure 4 for Figure 2 Enlarged view of point A in the middle; Figure 5 This is a structural schematic diagram of the staircase body of this utility model; Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0016] In the diagram: 1. Staircase body; 2. Protective plate; 3. Snap-fit ​​post; 4. Abutment block; 5. Fixing cylinder; 6. First mounting groove; 7. First sliding groove; 8. Compression spring; 9. Snap-fit ​​block; 10. Snap-fit ​​groove; 11. Circular groove; 12. Rotating component; 13. Limiting groove; 14. Second mounting groove; 15. Telescopic spring; 16. Sliding component; 17. Round rod; 18. Slot. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-6 This utility model provides a technical solution: it includes a stair body 1, a protective plate 2 fixedly installed on one side of the top of the stair body 1, a fixed cylinder 5 snapped into one side of the inside of the stair body 1, a first mounting groove 6 opened inside the fixed cylinder 5, a snap-fit ​​post 3 fixedly installed at the bottom of the protective plate 2, a first sliding groove 7 opened on one side of the inner wall of the fixed cylinder 5, the first sliding groove 7 communicating with the first mounting groove 6, a compression spring 8 fixedly installed inside the first sliding groove 7, one end of the compression spring 8 fixedly connected to one side of the inner wall of the first sliding groove 7, and a snap-fit ​​block 9 fixedly connected to the other end of the compression spring 8, a snap-fit ​​groove 10 opened on one side of the snap-fit ​​post 3, the snap-fit ​​block 9 inserted into the snap-fit ​​groove 10, a circular groove 11 opened at the top of the protective plate 2, a rotating component 12 rotatably installed inside the circular groove 11, a limit groove 13 opened at the top of the rotating component 12, the rotating component 12 fixedly connected to the snap-fit ​​post 3 through a rotating shaft, and an abutment block 4 fixedly installed at the bottom of the snap-fit ​​post 3, the snap-fit ​​post 3 and the abutment block 4 inserted into the inside of the first mounting groove 6.

[0019] It should be noted that the limiting groove 13 is hexagonal in shape, and a tool such as an Allen wrench can be inserted into the limiting groove 13 to drive the rotating part 12 to rotate.

[0020] In practice, when installing the protective plate 2, the right angle on one side of the bottom of the protective plate 2 can be aligned with the right angle on one side of the top of the stair body 1. The protective plate 2 is then placed vertically downwards close to the stair body 1. The locking post 3 and the abutment block 4 move synchronously towards the stair body 1 as the protective plate 2 moves. After the abutment block 4 is inserted into the first mounting groove 6, the edge of the abutment block 4 abuts against the locking block 9, causing multiple locking blocks 9 to compress the compression spring 8. One end of the locking block 9 retracts into the interior of the first sliding groove 7. As the abutment block 4 gradually moves downwards, and the locking post 3 moves with the abutment block 4, when the locking groove 10 aligns with the first sliding groove 7, it is driven by the restoring force of the compression spring 8. The locking block 9 moves into the locking groove 10, so that it is inserted into the locking post 3, fixing the protective plate 2 and the locking post 3. When the protective plate 2 is damaged after long-term use, the more severely damaged protective plate 2 can be replaced. When replacing the protective plate 2, the hexagonal limiting rod is inserted into the limiting groove 13, and then the rotating part 12 is rotated. The rotating part 12 drives the locking post 3 to rotate. When the locking post 3 rotates, the end of the locking block 9 with the chamfer is squeezed by the rotation of the locking post 3, so that the locking block 9 retracts into the first sliding groove 7. When multiple locking blocks 9 are disengaged from the locking groove 10, the locking post 3 can be removed from the first mounting groove 6, thereby replacing the new protective plate 2.

[0021] See Figure 2 , Figure 5 and Figure 6 A second mounting groove 14 is provided on one side of the stair body 1. A sliding member 16 is slidably connected inside the second mounting groove 14. A telescopic spring 15 is fixedly connected to one side of the sliding member 16. The other end of the telescopic spring 15 is fixedly connected to the second mounting groove 14. A round rod 17 is fixedly connected to the side of the sliding member 16 away from the telescopic spring 15. The round rod 17 is inserted into the inside of the fixed cylinder 5. Slots 18 are provided on both sides of the fixed cylinder 5. The number of round rods 17 matches the number of slots 18. Both round rods 17 are inserted into the inside of the fixed cylinder 5.

[0022] In practice, when the zero inside the fixed cylinder 5 is damaged, the fixing effect of the fixed cylinder 5 deteriorates, and the fixed cylinder 5 needs to be replaced. The sliding member 16 can be driven to move inside the second mounting groove 14. The sliding member 16 drives the round rod 17 to move. The telescopic spring 15 is squeezed by the sliding member 16, and the round rod 17 can be pulled out from one side of the fixed cylinder 5. After the limitation on the fixed cylinder 5 is released, the fixed cylinder 5 can be replaced.

[0023] See Figure 3 One side of the snap-fit ​​block 9 has a chamfer, which abuts against the snap-fit ​​post 3. There are four snap-fit ​​blocks 9, which are inserted into the inner wall of the first mounting groove 6 at equal intervals.

[0024] By providing a chamfer on one side of the snap-fit ​​block 9, when the snap-fit ​​post 3 rotates, the chamfered side abuts against the inner wall edge of the snap-fit ​​groove 10. When the snap-fit ​​post 3 rotates, it is easy for the snap-fit ​​block 9 to be disengaged from the snap-fit ​​groove 10 and squeezed to move into the interior of the first slide groove 7.

[0025] See Figure 6 A lever is fixedly connected to the top of the slider 16, and the lever is located inside the second mounting groove 14.

[0026] By providing a lever at the top of the slide 16, with the top of the lever lower than the top of the stair body 1, the protective plate 2 and the stair body 1 are not affected in being locked together. Sliding the lever allows the slide 16 to move inside the second mounting groove 14, facilitating the movement of the round rod 17.

[0027] Working principle: When using the device, when installing the protective plate 2, align the right angle on one side of the bottom of the protective plate 2 with the right angle on one side of the top of the stair body 1, and place the protective plate 2 vertically downward close to the stair body 1. The locking post 3 and the abutment block 4 move synchronously towards the stair body 1 as the protective plate 2 moves. After the abutment block 4 is inserted into the first mounting groove 6, the edge of the abutment block 4 abuts against the locking block 9, causing multiple locking blocks 9 to compress the compression spring 8. One end of the locking block 9 retracts into the interior of the first sliding groove 7. When the abutment block 4 gradually moves downward, and the locking post 3 moves with the abutment block 4, when the locking groove 10 is aligned with the first sliding groove 7, it is driven by the resetting force of the compression spring 8, and the compression spring 8 drives the locking post 10 to engage. Block 9 moves into the snap-fit ​​groove 10, so that the snap-fit ​​block 9 is inserted into the snap-fit ​​post 3, fixing the protective plate 2 and the snap-fit ​​post 3. When the protective plate 2 is damaged after long-term use, the more severely damaged protective plate 2 can be replaced. When replacing the protective plate 2, the hexagonal limit rod is inserted into the limit groove 13, and then the rotating part 12 is rotated. The rotating part 12 drives the snap-fit ​​post 3 to rotate. When the snap-fit ​​post 3 rotates, the end of the snap-fit ​​block 9 with the chamfer is squeezed by the rotation of the snap-fit ​​post 3, so that the snap-fit ​​block 9 retracts into the first sliding groove 7. When multiple snap-fit ​​blocks 9 are disengaged from the snap-fit ​​groove 10, the snap-fit ​​post 3 can be removed from the first mounting groove 6, thereby replacing the new protective plate 2. When the zero inside the fixed cylinder 5 is damaged, the fixing effect of the fixed cylinder 5 deteriorates, and the fixed cylinder 5 needs to be replaced. The sliding member 16 can be driven to move inside the second mounting groove 14. The sliding member 16 drives the round rod 17 to move. The telescopic spring 15 is squeezed by the sliding member 16, and the round rod 17 can be pulled out from one side of the fixed cylinder 5. After the limitation on the fixed cylinder 5 is released, the fixed cylinder 5 can be replaced.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A prefabricated staircase, comprising a staircase body (1), characterized in that: A protective plate (2) is fixedly installed on one side of the top of the stair body (1). A fixed cylinder (5) is snapped into one side of the inside of the stair body (1). A first installation groove (6) is opened inside the fixed cylinder (5). A snap-fit ​​post (3) is fixedly installed at the bottom of the protective plate (2). A first sliding groove (7) is opened on one side of the inner wall of the fixed cylinder (5). The first sliding groove (7) is connected to the first installation groove (6). A compression spring (8) is fixedly installed inside the first sliding groove (7). One end of the compression spring (8) is fixedly connected to one side of the inner wall of the first sliding groove (7). A snap-fit ​​block (9) is fixedly connected to the other end of the compression spring (8). A snap-fit ​​groove (10) is opened on one side of the snap-fit ​​post (3). The snap-fit ​​block (9) is inserted into the snap-fit ​​groove (10).

2. The prefabricated staircase as described in claim 1, characterized in that: A second mounting groove (14) is provided on one side of the stair body (1). A sliding member (16) is slidably connected inside the second mounting groove (14). A telescopic spring (15) is fixedly connected to one side of the sliding member (16). The other end of the telescopic spring (15) is fixedly connected to the second mounting groove (14). A round rod (17) is fixedly connected to the side of the sliding member (16) away from the telescopic spring (15). The round rod (17) is inserted into the inside of the fixed cylinder (5).

3. A prefabricated staircase as described in claim 2, characterized in that: The top of the protective plate (2) is provided with a circular groove (11), and a rotating part (12) is rotatably installed inside the circular groove (11). A limiting groove (13) is provided on the top of the rotating part (12), and the rotating part (12) is fixedly connected to the snap-fit ​​post (3) through a rotating shaft.

4. A prefabricated staircase as described in claim 3, characterized in that: The bottom of the snap-fit ​​post (3) is fixedly installed with an abutment block (4), and the snap-fit ​​post (3) and the abutment block (4) are inserted into the inside of the first mounting groove (6).

5. A prefabricated staircase as described in claim 4, characterized in that: The snap-fit ​​block (9) has a chamfer on one side, and the chamfer abuts against the snap-fit ​​post (3).

6. A prefabricated staircase as described in claim 5, characterized in that: The number of the snap-fit ​​blocks (9) is set to four, and the four snap-fit ​​blocks (9) are inserted into one side of the inner wall of the first mounting groove (6) at equal intervals.

7. A prefabricated staircase as described in claim 6, characterized in that: A lever is fixedly connected to the top of the slider (16), and the lever is disposed inside the second mounting groove (14).

8. A prefabricated staircase as described in claim 7, characterized in that: The fixed cylinder (5) has slots (18) on both sides, and the number of round rods (17) matches the number of slots (18). Both round rods (17) are inserted into the inside of the fixed cylinder (5).

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