Prefabricated stair finished product protection device

Abstract

The utility model discloses a prefabricated stair finished product protection device, and relates to the field of prefabricated stairs. The protection device for the prefabricated stair finished product comprises a plurality of corner protection plates, the corner protection plates are tightly attached to the corners of the prefabricated stair, and a connecting unit is arranged between every two adjacent corner protection plates. According to the protection device for the prefabricated stair finished product, the corner protection plates are tightly attached to the corners of the prefabricated stair, external force can be effectively dispersed, the corners of the stair are prevented from being damaged due to collision and friction, and the service life of the stair is prolonged. Every two adjacent corner protection plates are firmly connected through the connection units through the combination of the transverse strips, the vertical strips and the connection blocks, and an overall protection structure is formed. The stability of the protection device is enhanced, the protection range is expanded, it is ensured that the stair edges and corners are protected in all directions, the connecting blocks serve as connecting pivots of the transverse strips and the vertical strips, and flexible rotation and connection of the transverse strips and the vertical strips are achieved.

Description

Technical Field

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

[0002] During the production, transportation, and installation of prefabricated stairs, the sharp edges and corners are highly susceptible to damage due to their protruding structure and the effects of impacts and friction. Damage to these edges and corners not only affects the aesthetics of the stairs but can also weaken their structural strength and reduce their lifespan. Therefore, effective protection of the sharp edges and corners of prefabricated stairs is crucial.

[0003] Traditional methods for protecting the edges of prefabricated stairs often involve simply wrapping them with materials such as wood panels and foam. However, this method has many drawbacks: the protective material is prone to falling off, the protective effect is not long-lasting, and it is difficult to adapt to the edges of stairs of different sizes and shapes, resulting in poor versatility. Therefore, there is an urgent need for a prefabricated stair protection device that is structurally stable, easy to install, and reusable. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a protective device for prefabricated staircases, solving the problem that traditional methods for protecting the edges of prefabricated staircases often involve simply wrapping them with materials such as wood boards and foam. However, this method has many drawbacks: the protective material is prone to falling off, the protective effect is not long-lasting, and it is difficult to adapt to staircase edges of different sizes and shapes, resulting in poor versatility.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a prefabricated staircase protective device, comprising multiple corner guards, wherein the corner guards are tightly fitted to the external corners of the prefabricated staircase, characterized in that a connecting unit is provided between two adjacent corner guards;

[0006] The connection unit includes:

[0007] The horizontal strips are fitted to the precast stair treads;

[0008] Vertical strips that fit against the precast stair riser;

[0009] A connecting block is installed on the outside of the end of the horizontal bar, and the bottom end of the vertical bar is rotatably connected to the connecting block;

[0010] The first mounting block is mounted at the end of the horizontal bar and is connected to the corner guard plate below it.

[0011] The second mounting block is installed at the end of the vertical strip and is connected to the corner guard plate above it.

[0012] Preferably, both the planar and vertical portions of the outer side of the corner protector are provided with mounting grooves, the first mounting block and the second mounting block are inserted into the corresponding mounting grooves, and the ends of the first mounting block and the second mounting block are connected to the corner protector by bolts.

[0013] Preferably, the interior of the horizontal bar and the vertical bar are respectively threaded with a first lead screw and a second lead screw, and the other ends of the first lead screw and the second lead screw are respectively connected to the first mounting block and the second mounting block.

[0014] Preferably, a slot is provided between the end of the connecting block and the transverse strip, and a fixing rod is inserted into the slot.

[0015] Preferably, both ends of the fixing rod are equipped with connecting rods, and the bottom end of the connecting rod is fixedly connected to a limiting rod, and the limiting rod is in contact with the back of the prefabricated staircase.

[0016] Preferably, a positioning shaft is fixedly connected to the end of the fixing rod, the top end of the connecting rod is sleeved on the outside of the positioning shaft, the positioning shaft is threaded with a nut, and the nut is tightly abutted against the top end of the connecting rod.

[0017] This utility model discloses a protective device for prefabricated staircases, which has the following beneficial effects:

[0018] This prefabricated staircase protection device features corner guards that fit snugly against the edges of the prefabricated staircase, effectively dispersing external forces and preventing damage to the staircase edges from collisions and friction, thus extending the staircase's lifespan. The connecting unit, through a combination of horizontal and vertical strips and connecting blocks, firmly connects adjacent corner guards to form an integrated protective structure. This not only enhances the stability of the protection device but also expands the protection range, ensuring all-around protection of the staircase edges. The connecting blocks act as the connecting hub between the horizontal and vertical strips, enabling flexible rotation and connection between them.

[0019] This prefabricated staircase protective device features horizontal strips that align with the planar portion of the prefabricated staircase flight, and vertical strips that align with the vertical portion of the flight, ensuring tight contact between the connecting unit and the staircase surface and enhancing the device's stability. Furthermore, the adjustment of the first and second lead screws allows it to accommodate staircases of different sizes, improving the device's versatility. The slot design facilitates the insertion of the fixing rod, further strengthening the connection unit and preventing the protective device from loosening or detaching during use. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a partial structural diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the connection unit of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure between the horizontal and vertical strips of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure between the fixing rod, connecting rod, and limiting rod of this utility model.

[0026] In the diagram: 1. Corner guard plate; 11. Mounting groove; 2. Connecting unit; 21. Horizontal bar; 211. First lead screw; 22. Vertical bar; 221. Second lead screw; 23. Connecting block; 231. Slot; 24. First mounting block; 25. Second mounting block; 26. Fixing rod; 261. Positioning shaft; 27. Connecting rod; 28. Limiting rod. Detailed Implementation

[0027] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0028] This utility model discloses a protective device for prefabricated staircases. According to the appendix... Figure 1-5 As shown, the system includes multiple corner guards 1, which are tightly fitted to the corners of the precast staircase. A connecting unit 2 is provided between adjacent corner guards 1. The connecting unit 2 includes a horizontal strip 21, a vertical strip 22, a connecting block 23, a first mounting block 24, and a second mounting block 25. The horizontal strip 21 is fitted to the tread of the precast staircase; the vertical strip 22 is fitted to the riser of the precast staircase; the connecting block 23 is installed on the outer side of the end of the horizontal strip 21, and the bottom end of the vertical strip 22 is rotatably connected to the connecting block 23. The first mounting block 24 is installed at the end of the horizontal strip 21 and is connected to the corner guard 1 below it; the second mounting block 25 is installed at the end of the vertical strip 22 and is connected to the corner guard 1 above it.

[0029] The corner guard 1 fits snugly against the external corner of the prefabricated staircase, effectively dispersing external forces and preventing damage to the staircase edges from collisions and friction, thus extending the staircase's service life. The connecting unit 2 is located at the internal corner of the prefabricated staircase. Through a combination of horizontal strips 21, vertical strips 22, and connecting blocks 23, the connecting unit 2 firmly connects two adjacent corner guards 1, forming an integrated protective structure. This not only enhances the stability of the protective device but also expands the protection range, ensuring that the staircase edges are protected from all angles. The connecting block 23 serves as the connecting hub between the horizontal strips 21 and the vertical strips 22, enabling flexible rotation and connection between the two.

[0030] The working structure of this utility model has been briefly described above, but the connection structure between the connecting unit 2 and the corner guard plate 1, as well as the specific structure of the horizontal strip 21 and the vertical strip 22, have not been described in detail. In order to facilitate better understanding by those skilled in the art, a specific connection structure is given in this embodiment based on the above embodiments.

[0031] The outer flat portion and the vertical portion of the corner protector 1 are provided with mounting grooves 11. The first mounting block 24 and the second mounting block 25 are inserted into the corresponding mounting grooves 11, and the ends of the first mounting block 24 and the second mounting block 25 are connected to the corner protector 1 by bolts.

[0032] The connection between the two is not limited to this structure. For ease of assembly and disassembly, protrusions can be provided on the corner protector 1, and matching hanging holes can be provided at the ends of the first mounting block 24 and the second mounting block 25. This method makes assembly and disassembly even easier. Of course, other existing connection methods can also be used, as long as they can achieve the connection between the two.

[0033] In order to adjust the length of the horizontal bar 21 and the vertical bar 22, a first lead screw 211 and a second lead screw 221 are threadedly connected inside the horizontal bar 21 and the vertical bar 22, respectively, and the other ends of the first lead screw 211 and the second lead screw 221 are rotatably connected to the first mounting block 24 and the second mounting block 25, respectively.

[0034] The horizontal strip 21 fits snugly against the flat surface of the precast stair flight, and the vertical strip 22 fits snugly against the vertical surface of the precast stair flight, ensuring close contact between the connecting unit 2 and the stair surface and improving the stability of the protective device. Simultaneously, by adjusting the first lead screw 211 and the second lead screw 221, it can accommodate staircases of different sizes, improving the device's versatility. The slot 231 is designed to facilitate the insertion of the fixing rod 26, further enhancing the stability of the connecting unit 2 and preventing the protective device from loosening or falling off during use.

[0035] In addition, a slot 231 is provided between the end of the connecting block 23 and the transverse strip 21, and a fixing rod 26 can be selectively inserted into the slot 231. Connecting rods 27 are installed at both ends of the fixing rod 26, and a limiting rod 28 is fixedly connected to the bottom end of the connecting rod 27, and the limiting rod 28 is in contact with the back of the prefabricated staircase.

[0036] The fixing rod 26 is inserted into the slot 231, effectively preventing the connecting unit 2 from deforming or loosening during use. Simultaneously, the fixing rod 26, through the connecting rod 27 and the limiting rod 28, adheres to the back of the prefabricated staircase, further enhancing the stability of the protective device and ensuring the long-term protection of the staircase edges. The connecting rod 27 connects the fixing rod 26 to the limiting rod 28, which fits tightly against the back of the prefabricated staircase, effectively preventing horizontal movement or rotation of the protective device during use and improving its stability.

[0037] The end of the fixed rod 26 is fixedly connected to the positioning shaft 261, and the top end of the connecting rod 27 is sleeved on the outside of the positioning shaft 261. The positioning shaft 261 is threaded with a nut, and the nut is tightly abutted against the top end of the connecting rod 27.

[0038] The positioning shaft 261, in conjunction with the nut, securely connects the connecting rod 27 and the fixing rod 26. By adjusting the tightness of the nut, it can accommodate prefabricated stairs of different sizes, improving the versatility of the safety device.

[0039] The corner guard 1 is tightly fitted to the corner of the precast staircase, and the connecting unit 2 is used to connect two adjacent corner guards 1. The horizontal strip 21 is fitted to the flat part of the precast staircase, and the vertical strip 22 is fitted to the vertical part of the precast staircase. The positions of the first mounting block 24 and the second mounting block 25 are adjusted by the first screw 211 and the second screw 221, so that the first mounting block 24 and the second mounting block 25 are respectively inserted into the mounting grooves 11 of the upper and lower corner guards 1, and the first mounting block 24 and the second mounting block 25 are tightly connected to the corner guard 1 by bolts.

[0040] Insert the fixing rod 26 into the slot 231 of the connecting block 23. Sleeve the connecting rod 27 onto the outside of the positioning shaft 261 and secure the connecting rod 27 to the fixing rod 26 with a nut. Adjust the angle of the connecting rod 27 so that the limiting rod 28 fits tightly against the back of the prefabricated staircase, thereby fixing the position of the connecting unit 2.

[0041] Check that the protective device is securely installed and that the corner guard 1 fits tightly against the external corner of the precast staircase. If necessary, the protective device can be fine-tuned by adjusting the tightness of the first lead screw 211, the second lead screw 221, and the nut to ensure optimal protection.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A protective device for prefabricated stairs, comprising multiple corner guards (1), wherein the corner guards (1) are tightly fitted to the external corners of the prefabricated stairs, characterized in that, A connecting unit (2) is provided between two adjacent corner guards (1); The connection unit (2) includes: The horizontal strip (21) is attached to the precast stair tread. Vertical strip (22), which is attached to the precast stair riser; A connecting block (23) is installed on the outside of the end of the horizontal bar (21), and the bottom end of the vertical bar (22) is rotatably connected to the connecting block (23); The first mounting block (24) is mounted at the end of the transverse strip (21) and is connected to the corner guard (1) below it; The second mounting block (25) is mounted at the end of the vertical strip (22) and is connected to the corner guard (1) above it.

2. The prefabricated staircase protective device according to claim 1, characterized in that, The outer flat portion and the vertical portion of the corner guard (1) are provided with mounting grooves (11). The first mounting block (24) and the second mounting block (25) are inserted into the corresponding mounting grooves (11), and the ends of the first mounting block (24) and the second mounting block (25) are connected to the corner guard (1) by bolts.

3. The prefabricated staircase protective device according to claim 1, characterized in that, The interior of the horizontal bar (21) and the vertical bar (22) are respectively threaded with a first lead screw (211) and a second lead screw (221), and the other ends of the first lead screw (211) and the second lead screw (221) are respectively connected to the first mounting block (24) and the second mounting block (25).

4. The prefabricated staircase protective device according to claim 1, characterized in that, A slot (231) is provided between the end of the connecting block (23) and the transverse bar (21), and a fixing rod (26) is inserted into the slot (231).

5. A prefabricated staircase protective device according to claim 4, characterized in that, Both ends of the fixed rod (26) are equipped with connecting rods (27), and the bottom end of the connecting rod (27) is fixedly connected to a limiting rod (28), and the limiting rod (28) is in contact with the back of the prefabricated staircase.

6. A prefabricated staircase protective device according to claim 5, characterized in that, The end of the fixed rod (26) is fixedly connected to the positioning shaft (261), the top end of the connecting rod (27) is sleeved on the outside of the positioning shaft (261), the positioning shaft (261) is threaded with a nut, and the nut is tightly abutted against the top end of the connecting rod (27).

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