Assembled elevator shaft opening protection fixing frame

Abstract

The utility model discloses an assembly type elevator shaft opening protection fixing frame which comprises a protection door and two sets of fixing supports, each fixing support comprises two clamps and an adjusting inner supporting pipe used for connecting the two clamps, the clamps comprise an L-shaped primary clamp and an L-shaped secondary clamp, the primary clamp comprises a primary clamp beam and a primary clamp clamping plate, and the secondary clamp comprises a secondary clamp beam and a secondary clamp clamping plate. The child clamp comprises a child clamp cross beam which is of a hollow structure and is arranged in the mother clamp cross beam in a sleeved mode and a child clamp clamping plate which is fixedly arranged at the end, away from the mother clamp cross beam, of the child clamp cross beam, a fastening nut with an internal thread structure is fixedly arranged in the child clamp cross beam, and a fastening bolt penetrates through the child clamp cross beam, the mother clamp cross beam and the fastening nut in the child clamp cross beam to be connected. The outer side of the female clamp clamping plate is detachably connected with a semicircular fastener used for fixing the connecting rod. The installation speed is increased through the bolt fastening principle, the protective door can be installed in several minutes, the protective door can be rapidly installed without opening holes in the wall face to install expansion bolts for fixation, the protective door is suitable for various door opening sizes, the repeated utilization rate is high, and cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of protective fixing brackets, specifically relating to an assembled elevator shaft opening protective fixing bracket. Background Technology

[0002] Elevator shaft opening safety doors are a temporary sealing measure to prevent safety accidents. Before elevator installation or when not in use, a normally closed safety door should be installed at the elevator shaft opening, with a height of no less than 1.5 meters. After installation, the safety door should be reliably locked to prevent accidental falls of personnel and objects. Traditional methods use prefabricated safety doors and fixing clamps for sealing, requiring professionals to drill holes in the main structure, damaging it. Installing expansion bolts for fixing clamps is labor-intensive, time-consuming, and material-intensive, uneconomical, and environmentally unfriendly. Depending on the construction conditions, secondary dismantling, modification, and re-fixing may be required. There are also non-drilling structures using hinged connections, but these are complex, difficult to install, heavy, expensive, and prone to failure, requiring specialized construction personnel for installation. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an assembled elevator shaft opening protection fixing bracket to address the shortcomings of the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an assembled elevator shaft opening protection fixing frame, characterized in that: it includes a protective door set on the outside of the elevator shaft opening and two sets of fixing brackets arranged vertically for fixing the protective door; connecting rods are fixedly installed at both ends of the upper and lower sides of the protective door; the fixing brackets include two clamps arranged symmetrically for clamping the side wall of the elevator shaft opening and an adjusting inner support tube for connecting the two clamps; the clamps include an L-shaped female clamp and an L-shaped female clamp. The L-shaped female clamp includes a hollow female clamp beam and a female clamp plate fixedly installed at one end of the female clamp beam. The L-shaped male clamp includes a hollow male clamp beam sleeved inside the female clamp beam and a male clamp plate fixedly installed at the end of the male clamp beam away from the female clamp beam. A fastening nut with an internal thread structure is fixedly installed inside the male clamp beam. A fastening bolt passes through the female clamp beam and the fastening nut and is threadedly connected to the fastening nut. A semi-circular fastener for fixing the connecting rod is detachably connected to the outside of the female clamp plate.

[0005] The above-mentioned assembled elevator shaft opening protection fixing bracket is characterized in that: a support screw is provided on the outer side of the female clamp crossbeam, and an external thread is provided on the support screw. The external threads on the two support screws have opposite directions of rotation. A first internal thread is provided on one side of the inner wall of the adjusting inner support tube, and a second internal thread is provided on the other side. The rotation directions of the first internal thread and the second internal thread are opposite. The first internal thread engages with the external thread of one support screw, and the second internal thread engages with the external thread of the other support screw.

[0006] The above-mentioned assembled elevator shaft opening protection fixing frame is characterized in that: both ends of the adjusting inner support tube are provided with rotating handles.

[0007] The above-mentioned assembled elevator shaft opening protection fixing bracket is characterized in that: the mother clamp plate is provided with multiple pairs of screw holes arranged vertically along the length direction, and both the upper and lower ends of the semi-circular fastener are provided with outward turning parts. The outward turning parts of the semi-circular fastener are provided with threaded holes, and screws pass through the threaded holes and screw holes to connect the semi-circular fastener to the mother clamp plate.

[0008] The above-mentioned assembled elevator shaft opening protection fixing frame is characterized in that: the L-shaped female clamp and the L-shaped female clamp are assembled into a U-shaped clamp.

[0009] This utility model has the following advantages compared with the prior art:

[0010] 1. This utility model adjusts the clamping width by setting a male and female clamp. Both the male and female clamps are L-shaped structures. The crossbeam of the female clamp is sleeved inside the crossbeam of the female clamp. The crossbeam of the female clamp limits the movement direction of the crossbeam of the female clamp and protects the crossbeam of the female clamp safely and stably during the movement. A fastening nut with an internal thread structure is welded inside the crossbeam of the female clamp. The fastening bolt passes through the crossbeam of the female clamp and the fastening nut and is threadedly connected to the fastening nut. By tightening the fastening bolt, the male and female clamps can be tightened and loosened, which is convenient for widespread use.

[0011] 2. This utility model, by setting a support screw on the outside of the crossbeam of the mother clamp and adjusting the distance between the two clamps by adjusting the inner support tube, can adapt to various door opening sizes, has a high reusability, can be operated and installed by ordinary workers, reduces the investment of special construction personnel, is reliable and stable, and has good performance.

[0012] 3. This utility model has a novel and reasonable design. By detachably connecting a semi-circular fastener for fixing the connecting rod on the protective door to the outside of the clamp plate of the mother clamp, the installation of the protective door can be realized. The installation of a protective door can be completed in just a few minutes. There is no need to drill holes in the wall to install expansion bolts for fixing. It can be installed quickly. Taking into account personnel, equipment, materials and environment, it reduces costs, saves construction materials, avoids safety risks, and is easy to promote and use.

[0013] In summary, this utility model features a novel and reasonable design, rapid installation, and fast installation speed achieved through bolt fastening. Installing a protective door takes only a few minutes, eliminating the need for wall drilling and expansion bolt fixing. It adapts to various door opening sizes, has a high reusability rate, and can be operated and installed by ordinary workers, reducing the need for specialized construction personnel. Considering personnel, equipment, materials, and the environment, it reduces costs, saves construction materials, mitigates safety risks, and facilitates widespread adoption.

[0014] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 for Figure 1 Top view.

[0017] Figure 3 This is a schematic diagram of the structure of the fixed bracket of this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the female clamp and the male clamp of this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1—Safety door; 2—Connecting rod; 3—Fixed bracket;

[0021] 4—Main clamp crossbeam; 5—Main clamp plate; 6—Daughter clamp crossbeam;

[0022] 7—Fasting nut; 8—Sub-clamp plate; 9—Fasting bolt;

[0023] 10—Semi-circular fastener; 11—Support screw; 12—Adjusting inner support tube;

[0024] 13—Rotating handle; 14—Screw; 15—Screw hole. Detailed Implementation

[0025] like Figures 1 to 4As shown, this utility model includes a protective door 1 installed on the outside of an elevator shaft opening and two sets of vertically arranged fixing brackets 3 for fixing the protective door 1. Connecting rods 2 are fixedly installed at both ends of the upper and lower sides of the protective door 1. Each fixing bracket 3 includes two symmetrically arranged clamps for holding the sidewall of the elevator shaft opening and an adjusting inner support tube 12 for connecting the two clamps. Each clamp includes an L-shaped female clamp and an L-shaped female clamp. The L-shaped female clamp includes a hollow female clamp beam 4 and a fixing... A mother clamp plate 5 is set at one end of the mother clamp beam 4. The L-shaped sub-clamp includes a hollow sub-clamp beam 6 sleeved inside the mother clamp beam 4 and a sub-clamp plate 8 fixedly set at the end of the sub-clamp beam 6 away from the mother clamp beam 4. A fastening nut 7 with an internal thread structure is fixedly set inside the sub-clamp beam 6. A fastening bolt 9 passes through the mother clamp beam 4 and the fastening nut 7 and is threadedly connected to the fastening nut 7. A semi-circular fastener 10 for fixing the connecting rod 2 is detachably connected to the outside of the mother clamp plate 5.

[0026] It should be noted that the clamping width is adjusted by setting up a male and female clamp. Both the male and female clamps are L-shaped structures. The crossbeam of the female clamp is fitted inside the crossbeam of the female clamp. The crossbeam of the female clamp limits the movement direction of the crossbeam of the female clamp and protects the crossbeam of the female clamp during movement. A fastening nut with an internal thread structure is welded inside the crossbeam of the female clamp. The fastening bolt passes through the crossbeam of the female clamp and the fastening nut and is threadedly connected to the fastening nut. The tightening and loosening of the male and female clamps are achieved by tightening the fastening bolt. A support screw is set on the outside of the crossbeam of the female clamp to utilize... Adjusting the distance between the two clamps by adjusting the inner support tube adapts to various door opening sizes, has a high reusability rate, and can be operated and installed by ordinary workers, reducing the need for special construction personnel; the installation of the protective door is achieved by a semi-circular fastener that is detachably connected to the outside of the mother clamp plate for fixing the connecting rod on the protective door. The installation of a protective door can be completed in just a few minutes, without the need to drill holes in the wall for expansion bolts, allowing for rapid installation. Considering personnel, equipment, materials, and environment, this approach reduces costs, saves construction materials, and avoids safety risks.

[0027] In actual use, multiple fastening nuts 7 with internal thread structure are fixedly installed inside the sub-clamp beam 6, and the multiple fastening nuts 7 with internal thread structure are arranged concentrically inside the sub-clamp beam 6.

[0028] In this embodiment, a support screw 11 is provided on the outer side of the female clamp beam 4. The support screw 11 has an external thread. The external threads on the two support screws 11 have opposite directions of rotation. The inner wall of the adjusting inner support tube 12 has a first internal thread on one side and a second internal thread on the other side. The rotation directions of the first internal thread and the second internal thread are opposite. The first internal thread engages with the external thread of one support screw 11, and the second internal thread engages with the external thread of the other support screw 11.

[0029] In this embodiment, both ends of the adjusting inner support tube 12 are provided with rotating handles 13.

[0030] In this embodiment, the female clamp plate 5 is provided with multiple pairs of screw holes 15 arranged vertically along the length direction. Both the upper and lower ends of the semicircular fastener 10 are provided with outward-turned portions. The outward-turned portions of the semicircular fastener 10 are provided with threaded holes. Screws 14 pass through the threaded holes and screw holes 15 to connect the semicircular fastener 10 to the female clamp plate 5.

[0031] It should be noted that the purpose of the multiple pairs of screw holes 15 arranged vertically along the length of the mother clamp plate 5 is to meet the needs of various door opening sizes when installing the protective door 1.

[0032] In this embodiment, the L-shaped female clamp and the L-shaped female clamp are assembled into a U-shaped clamp.

[0033] In use, this invention first retracts two support screws 11 on the inner support tube 12 to shorten the length of the fixed bracket, allowing it to extend into the doorway. Then, the inner support tube 12 is adjusted to extend two support screws 11, causing two U-shaped clamps to hold the side wall of the doorway. After the height of the two fixed brackets is adjusted, the two fixed brackets are locked by tightening the fastening bolts 9. Then, the connecting rod 2 is locked using the semi-circular fastener 10, thus installing the protective door 1. After use, the protective door 1 is removed first. The U-shaped clamps are released from the side wall of the doorway by reverse tightening the fastening bolts 9. Finally, the inner support tube 12 is adjusted by reverse tightening to shorten the length of the fixed bracket, allowing it to be removed from the doorway. Installing a protective door takes only a few minutes. It does not require drilling holes in the wall to install expansion bolts for fixation, allowing for quick installation. It is adaptable to various doorway sizes, has a high reusability rate, and can be operated and installed by ordinary workers, reducing the need for special construction personnel. Considering personnel, equipment, materials, and environment, it reduces costs, saves construction materials, and avoids safety risks.

[0034] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. An assembled elevator shaft opening protection fixture, characterized by: The system includes a protective door (1) installed on the outside of the elevator shaft opening and two sets of vertically arranged fixing brackets (3) for fixing the protective door (1). Connecting rods (2) are fixedly installed at both ends of the upper and lower sides of the protective door (1). Each fixing bracket (3) includes two symmetrically arranged clamps for holding the sidewall of the elevator shaft opening and an adjusting inner support tube (12) for connecting the two clamps. Each clamp includes an L-shaped female clamp and an L-shaped female clamp. The L-shaped female clamp includes a hollow female clamp beam (4) and a component fixedly installed on the female clamp beam (4). The L-shaped sub-clamp includes a hollow sub-clamp beam (6) fitted inside the mother clamp beam (4) and a sub-clamp plate (8) fixedly installed at one end of the sub-clamp beam (6) away from the mother clamp beam (4). A fastening nut (7) with an internal thread structure is fixedly installed inside the sub-clamp beam (6). A fastening bolt (9) passes through the mother clamp beam (4) and the fastening nut (7) and is threadedly connected to the fastening nut (7). A semi-circular fastener (10) for fixing the connecting rod (2) is detachably connected to the outside of the mother clamp plate (5).

2. An assembled elevator shaft opening guard fixture according to claim 1, characterized in that: The outer side of the mother clamp beam (4) is provided with a support screw (11), and the support screw (11) is provided with an external thread. The external threads on the two support screws (11) have opposite directions of rotation. The inner wall of the adjusting inner support tube (12) is provided with a first internal thread on one side and a second internal thread on the other side. The rotation direction of the first internal thread and the rotation direction of the second internal thread are opposite. The first internal thread is engaged with the external thread of one support screw (11), and the second internal thread is engaged with the external thread of the other support screw (11).

3. An assembled elevator shaft opening guard fixture according to claim 1, characterized in that: Both ends of the adjustable inner support tube (12) are provided with rotating handles (13).

4. An assembled elevator shaft opening guard fixture according to claim 1, characterized in that: The female clamp plate (5) is provided with multiple pairs of screw holes (15) arranged vertically along the length direction. Both the upper and lower ends of the semicircular fastener (10) are provided with outward-turned parts. The outward-turned parts of the semicircular fastener (10) are provided with threaded holes. Screws (14) pass through the threaded holes and screw holes (15) to connect the semicircular fastener (10) to the female clamp plate (5).

5. An assembled elevator shaft opening guard fixture according to claim 1, characterized in that: The L-shaped mother clamp and the L-shaped daughter clamp are assembled into a U-shaped clamp.

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