Telescopic elevator shaft hard protector
Through the hard protection structure of retractable elevator shafts, the problems of complex and high cost of protection of traditional elevator shafts are solved, and efficient and economical elevator shaft safety protection is achieved to meet the needs of elevator shafts of different sizes.
Patent Information
- Application Number
- CN202422258813.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-09-14
AI Technical Summary
The hard protection construction of traditional elevator shafts is large, costly and inconvenient to demolition, which poses safety hazards.
The retractable elevator shaft hard protection structure is adopted, including fixtures and brackets. The fixtures are fixed on both sides of the elevator door frame. The brackets can be adjusted in length and lean against the well wall. The grating plates are laid on the brackets to avoid digging notches on the well wall. The fixtures and brackets can be reused.
Improve construction efficiency, reduce working strength, save material and labor costs, enhance safety, adapt to elevator shafts of different sizes, and facilitate disassembly and reuse.
Smart Images
Figure CN223202769U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of building construction, in particular to a telescopic elevator shaft hard protection. Background Art
[0002] The elevator shaft is the passageway where the elevator is installed. During construction, a pre-installed elevator shaft must be reserved. Each floor of the elevator shaft on a construction site has a shaft opening and a doorway. Failure to properly protect these openings can easily compromise construction safety. The shaft openings are typically protected by installing temporary protective doors and adding safety warning signs. Hard isolation is often used to protect the shaft openings.
[0003] The traditional steel pipe frame laying for elevator shaft hard protection is labor-intensive and poses safety hazards. Another common elevator shaft hard protection method uses square steel or steel plates to make support legs, which are positioned according to preliminary drawings. Pre-embedded holes are used during pouring, or temporary grooves are cut on the shaft wall. After the support legs are installed, isolation boards are further erected. This method still requires cutting or pre-embedded grooves, and is inconvenient to remove later. The construction workload is large and the labor cost is too high. Utility Model Content
[0004] In view of this, the purpose of the present invention is to provide a retractable elevator shaft hard protection that does not require the provision of embedded grooves and can be disassembled and reused.
[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present utility model is a retractable elevator shaft hard protection, comprising a grille plate and a support assembly;
[0006] The support assembly includes a clamp and a bracket. The clamp is provided in two groups, which are clamped and fixed on the left and right sides of the elevator door frame respectively, and one end of the clamp is against the floor;
[0007] One end of the bracket is rotatably connected to the clamp so that the bracket is rotated to the other end to tilt against the shaft wall corresponding to the elevator door, and the length of the bracket can be adjusted;
[0008] The grating plate is laid on the bracket, and the grating plate is adapted to fill the elevator shaft.
[0009] The beneficial effects of the above technical solution are: one end of the bracket is connected to a fixed and locked clamp, and the other end is tilted against the shaft wall corresponding to the elevator door, which is strong in load-bearing and easy to install, thereby improving construction efficiency; the length of the bracket can be adjusted, and it can be used for elevator shafts of different sizes, and the clamp and bracket are easy to disassemble and recycle, reducing material loss and saving construction costs; the installation position of the bracket is provided by the clamp, avoiding the need to cut grooves on the elevator shaft wall, reducing work intensity and saving labor costs.
[0010] Furthermore, the clamp includes a horizontal plate, a front plate and a rear plate. The front plate is clamped on the outside of the elevator door frame, and the rear plate is clamped on the inside of the elevator door frame. A transparent threaded hole is provided on the front plate, and the threaded hole is connected to a screw rod that passes through the front plate. A handle is provided at the rear end of the screw rod.
[0011] Beneficial effect: The clamp can adapt to the clamping of walls of different thicknesses through the movement of the screw rod, and the handle facilitates the adjustment of the position of the screw rod.
[0012] Furthermore, a non-slip pad is provided at the front end of the screw rod, and the protective pad is used to prevent the clamp from loosening during use.
[0013] Beneficial effect: Enhance the clamping effect of the fixture.
[0014] Furthermore, a length-adjustable connector is provided between the clamps on the left and right sides of the elevator door frame. The connector is a forward and reverse threaded sleeve, and both ends of the forward and reverse threaded sleeve are respectively fixed on the horizontal plates of the clamps on the left and right sides.
[0015] Beneficial effects: On the one hand, the forward and reverse threaded sleeve can make the clamps on both sides lean against the elevator door frame to prevent the clamping position from loosening, and the length adjustment can adapt to elevator doors of different sizes; on the other hand, it can appropriately block the gap formed between the height of the clamp and the floor, increasing the safety of elevator shaft protection.
[0016] Furthermore, the bracket includes a rotating shaft and a telescopic rod. A groove is provided on the clamp. The groove is located on the rear clamping plate of the clamp extending into the interior of the elevator shaft, and the rotating shaft is rotatably arranged in the groove.
[0017] Beneficial effect: A connection method between the bracket and the clamp is provided, so that the bracket can be rotatably connected to the clamp.
[0018] Furthermore, the groove is located at the top of the rear clamping plate with the notch facing upward, and the grille plate covers the notch of the groove.
[0019] Beneficial effect: The groove is opened at a position that facilitates the installation of the bracket, and the grille plate is pressed on the notch to prevent the shaft from detaching from the groove after the bracket is subjected to force.
[0020] Furthermore, the telescopic rod includes an outer rod and an inner rod, the outer rod is slidably sleeved on the outside of the inner rod, and both the outer rod and the inner rod are provided with modular holes that are transparent up and down, and bolts are provided corresponding to the modular holes. The bolts pass through the modular holes of the outer rod and the inner rod, and the ends of the bolts are threadedly connected to the matching nuts.
[0021] Beneficial effect: The telescopic rod is convenient for adjusting the length.
[0022] Furthermore, the telescopic rods are arranged in two groups in parallel, and one end portion of the two groups of telescopic rods is fixedly connected by a rotating shaft, and the other end portion is fixedly connected by a connecting rod.
[0023] Beneficial effects: Arranging two groups of telescopic rods in parallel can increase the support density of the bracket to the grid plate, and arranging the connecting rod can increase the contact area between the end of the telescopic rod and the well wall, further improving the load-bearing capacity of the bracket.
[0024] Furthermore, the connecting rod is a circular rod, and an anti-slip strip is provided on the outer wall of the connecting rod.
[0025] Beneficial effects: The round rod can prevent the connecting rod from directly damaging the wall of the well when it hits the well wall, and the anti-slip strip can increase the adhesion of the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a structural diagram of the use process of the utility model;
[0027] Figure 2 yes Figure 1 Side view with floors and elevator shaft removed;
[0028] Figure 3 yes Figure 2 Schematic diagram of the structure of the middle fixture;
[0029] Figure 4 yes Figure 2 Schematic diagram of the structure of the middle bracket;
[0030] In the figure: 1-floor, 2-elevator shaft, 201-elevator shaft opening, 202-elevator door frame, 3-grating plate, 4-clamp, 41-screw rod, 42-anti-slip pad, 43-handle, 401-groove, 5-positive and negative threaded sleeve, 6-bracket, 61-outer rod, 62-inner rod, 63-bolt, 64-nut, 601-modular hole, 7-rotating shaft, 8-connecting rod, 14-cross plate, 15-front splint, 16-rear splint. DETAILED DESCRIPTION
[0031] The telescopic elevator shaft hard protection of the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0032] like Figure 1-4As shown, the utility model is a retractable elevator shaft hard protection, including a grille plate 3 and a support assembly, the support assembly includes a clamp 4 and a bracket 6, the clamp 4 is provided with two groups, which are clamped and fixed on the left and right sides of the elevator door frame 202 respectively, and one end of the clamp 4 is against the floor 1, and one end of the bracket 6 is rotatably connected to the clamp 4, so that the bracket 6 is rotated to the other end and tilted against the shaft wall corresponding to the elevator door, which has a strong load-bearing capacity and is easy to install, ensuring the safety of elevator shaft 2 construction; the length of the bracket 6 can be adjusted, the grille plate 3 is laid on the bracket 6, and the grille plate 3 is adapted to fill the elevator shaft opening 201; the installation position of the bracket 6 is provided by the clamp 4, replacing the traditional groove on the shaft wall, reducing the work intensity and improving the construction efficiency; the clamp 4 and the bracket 6 are both reusable, and will not affect the secondary structure construction of the elevator shaft 2 after installation, and can also be used as an elevator shaft 2 operating frame, and the hard protection structure can be dismantled until before the indoor elevator is installed, with strong construction convenience.
[0033] In this embodiment, the clamp 4 includes a horizontal plate 14, a front splint 15 and a rear splint 16. The front splint 15 and the rear splint 16 are fixed on the same side of the horizontal plate 14 to form a concave structure. When clamping, the elevator door frame 202 is located in the notch of the concave structure. The front splint 15 is clamped on the outside of the elevator door frame 202, and the rear splint 16 is clamped on the inside of the elevator door frame 202. A transparent threaded hole is provided on the front splint 15, and the threaded hole is connected to the screw rod 41 that passes through the front splint 15. A handle 43 is provided at the rear end of the screw rod 41. The handle 43 makes it more convenient to adjust the movable screw rod 41, so that the clamp 4 is stably clamped on the elevator door frame 202.
[0034] Specifically, an anti-slip pad 42 is provided at the front end of the screw rod 41. The protective pad 42 is used to prevent the clamping of the clamp 4 from loosening during use, thereby enhancing the clamping effect of the clamp 4. A length-adjustable connecting piece is provided between the clamps 4 on the left and right sides of the elevator door frame 202. The connecting piece is a forward and reverse threaded sleeve 5. The two ends of the forward and reverse threaded sleeve 5 are respectively fixed on the horizontal plates 14 of the clamps 4 on the left and right sides. The spacing between the clamps 4 can be adjusted through the forward and reverse threaded sleeve 5, so that it is suitable for elevator doors of different sizes. At the same time, the clamps 4 on both sides are pressed against the left and right sides of the elevator door frame 202 to prevent the clamp 4 from loosening. On the other hand, when the clamp 4 is fixed, the height of the clamp 4 itself will form a gap with the floor 1, and the forward and reverse threaded sleeve 5 can slightly block the gap, further enhancing protection safety.
[0035] In this embodiment, the bracket 6 includes a rotating shaft 7 and a telescopic rod. A groove 401 is provided on the clamp 4. The groove 401 is located on the rear splint 16 where the clamp 4 extends into the interior of the elevator shaft 2. The rotating shaft 7 is rotatably set in the groove 401 to facilitate the rotation adjustment of the bracket 6, so that the other end of the bracket 6 is tilted against the shaft wall corresponding to the elevator door. The groove 401 is located at the top of the rear splint 16 with the notch facing upward, which is convenient for the installation and use of the bracket 6; the grille plate 3 covers the notch of the groove 401 to prevent the bracket 6 from detaching from the groove 401 after being subjected to force.
[0036] Specifically, the telescopic rod includes an outer rod 61 and an inner rod 62. The outer rod 61 is slidably sleeved on the outside of the inner rod 62. The outer rod 61 and the inner rod 62 are both provided with a modular hole 601 that is transparent from top to bottom. A bolt 63 is provided corresponding to the modular hole 601. When the outer rod 61 slides to an appropriate position on the inner rod 62, the bolt 63 passes through the modular hole 601 of the outer rod 61 and the inner rod 62 to fix the length of the telescopic rod. The end of the bolt 63 is threadedly connected to the adapted nut 64. In order to further In order to increase the support density of the bracket 6 for the grating plate 3, two groups of telescopic rods are arranged in parallel. One end of the two groups of telescopic rods is fixedly connected by a rotating shaft 7, and the other end is fixedly connected by a connecting rod 8. Compared with the end of the telescopic rod, the connecting rod 8 increases the contact area with the well wall, making the contact of the bracket 6 more firm. The connecting rod 8 is a round rod to avoid direct damage to the wall of the well wall when the connecting rod 8 contacts the well wall. At the same time, an anti-slip strip is provided on the outer wall of the connecting rod 8 to further increase the adhesion of the connecting rod 8 to the well wall.
[0037] When the present invention is in use, first fix the clamp 4, rotate the screw rod 41 according to the thickness of the wall, hook the rear splint 16 of the clamp 4 into the inner side of the elevator door frame 202, and place the front splint 15 of the clamp 4 on the outer side of the elevator door frame 202. The clamp 4 fits with the floor 1, and the screw rod 41 is clamped to the elevator door frame 202 by rotating the handle 43. The clamps 4 on the left and right sides of the elevator door frame 202 are clamped in turn, and then the forward and reverse threaded sleeves 5 are rotated to further press the clamps 4 on both sides against the elevator door frame 202. Then install the bracket 6. First, adjust the length of the bracket 6 according to the length of the elevator shaft 2. It should be noted that the bracket 6 is fixed to the floor 1. The length of the bracket 6 should be greater than the front-to-back length of the elevator shaft 2. Then, place the rotating shaft 7 of the bracket 6 into the groove 401 on the rear splint 16 from the outside, and then slowly rotate the bracket 6 so that the other end of the bracket 6 rests on the shaft wall corresponding to the elevator door. Then observe the inclination angle of the bracket 6. If it is too tilted, you can adjust the bolt 63 of the fixed modular hole 601 to appropriately reduce the length of the telescopic rod. After ensuring that the bracket 6 is firmly supported, install the bracket 6 on the other side in the same way. Finally, lay the grille plate 3 on the bracket 6. The grille plate 3 covers the groove 401 of the clamp 4 and the grille plate 3 fills the entire elevator shaft 201.
[0038] The retractable elevator shaft hard protection of the present invention has the following advantages: first, the installation and use of the clamp 4 and the bracket 6 are relatively convenient, and no excavation or pre-buried grooves are required, which saves construction strength and improves construction efficiency; second, the clamp 4 can adapt to walls of different thicknesses, the positive and negative threaded sleeves 5 can adapt to elevator doors of different sizes, and the telescopic rod can adapt to elevator shafts 2 of different sizes, and has strong applicability; third, the clamp 4 and the bracket 6 can be dismantled and reused, saving material costs.
[0039] In the above embodiment, an anti-slip pad is provided at the front end of the screw rod, and the protective pad is used to prevent the clamp from loosening during use. In other embodiments, no anti-slip pad is provided at the front end of the screw rod, and the screw rod alone is used for clamping.
[0040] In the above embodiment, a length-adjustable connecting piece is provided between the clamps on the left and right sides of the elevator door frame. The connecting piece is a forward and reverse threaded sleeve, and the two ends of the forward and reverse threaded sleeve are respectively fixed on the horizontal plates of the clamps on the left and right sides. In other embodiments, the clamps on the left and right sides are used separately and no connecting piece is provided.
[0041] In the above embodiment, the bracket includes a rotating shaft and a telescopic rod, and a groove is provided on the clamp. The groove is located on the rear plate of the clamp extending into the interior of the elevator shaft, and the rotating shaft is rotatably set in the groove. In other embodiments, the rotating shaft is fixedly set on the clamp, and the bracket is sleeved on the rotating shaft.
[0042] In the above embodiment, the groove is located at the top of the rear splint with the notch facing upward, and the grille plate covers the notch of the groove. In other embodiments, the groove may be located on the side wall of the rear splint, and a corresponding anti-slip mechanism may be added.
[0043] In the above embodiment, two groups of telescopic rods are provided in parallel, one end of the two groups of telescopic rods is fixedly connected by a rotating shaft, and the other end is fixedly connected by a connecting rod. In other embodiments, the connecting rod may not be provided.
[0044] In the above embodiment, the connecting rod is a circular rod, and an anti-slip strip is provided on the outer wall of the connecting rod; in other embodiments, the anti-slip strip may not be provided.
[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A retractable elevator shaft hard protection, characterized by: It includes a grid plate (3) and a support assembly; The support assembly includes a clamp (4) and a bracket (6), wherein the clamp (4) is provided in two groups, which are clamped and fixed on the left and right sides of the elevator door frame (202), respectively, and one end of the clamp (4) is against the floor (1); One end of the bracket (6) is rotatably connected to the clamp (4) so that the bracket (6) is rotated to the other end to tilt against the shaft wall corresponding to the elevator door, and the length of the bracket (6) can be adjusted; The grid plate (3) is laid on the bracket (6), and the grid plate (3) is adapted to fill the elevator shaft (201).
2. The retractable elevator shaft hard protection according to claim 1 is characterized in that: The clamp (4) includes a transverse plate (14), a front clamping plate (15) and a rear clamping plate (16). The front clamping plate (15) is clamped on the outside of the elevator door frame (202), and the rear clamping plate (16) is clamped on the inside of the elevator door frame (202). A transparent threaded hole is provided on the front clamping plate (15). The threaded hole is connected to a screw rod (41) that passes through the front clamping plate (15). A handle (43) is provided at the rear end of the screw rod (41).
3. The retractable elevator shaft hard protection according to claim 2 is characterized in that: An anti-skid pad (42) is provided at the front end of the screw rod (41), and the anti-skid pad (42) is used to prevent the clamp from loosening during use.
4. The retractable elevator shaft hard protection according to claim 2 is characterized in that: A length-adjustable connecting piece is provided between the clamps (4) on the left and right sides of the elevator door frame (202), wherein the connecting piece is a forward and reverse threaded sleeve (5), and both ends of the forward and reverse threaded sleeve (5) are respectively fixed on the horizontal plates (14) of the clamps (4) on the left and right sides.
5. The retractable elevator shaft hard protection according to claim 2 is characterized in that: The bracket (6) includes a rotating shaft (7) and a telescopic rod. A groove (401) is provided on the clamp (4). The groove (401) is located on a rear clamp (16) of the clamp (4) extending into the interior of the elevator shaft (2). The rotating shaft (7) is rotatably arranged in the groove (401).
6. The retractable elevator shaft hard protection according to claim 5 is characterized in that: The groove (401) is located at the top of the rear clamping plate (16) with the notch facing upwards, and the grid plate (3) covers the notch of the groove (401).
7. The retractable elevator shaft hard protection according to claim 5 is characterized in that: The telescopic rod comprises an outer rod (61) and an inner rod (62), wherein the outer rod (61) is slidably sleeved on the outer side of the inner rod (62), and both the outer rod (61) and the inner rod (62) are provided with upper and lower transparent modular holes (601), and bolts (63) are provided corresponding to the modular holes (601). The bolts (63) pass through the modular holes (601) of the outer rod (61) and the inner rod (62), and the ends of the bolts (63) are threadedly connected to the matching nuts (64).
8. The retractable elevator shaft hard protection according to claim 5 is characterized in that: Two groups of telescopic rods are arranged in parallel, and one end portion of the two groups of telescopic rods is fixedly connected via a rotating shaft (7), and the other end portion is fixedly connected via a connecting rod (8).
9. The retractable elevator shaft hard protection according to claim 8 is characterized in that: The connecting rod (8) is a circular rod, and an anti-slip strip is provided on the outer wall of the connecting rod (8).