Elevator protective door

Abstract

The utility model relates to the technical field of elevators, and discloses an elevator protective door which comprises an elevator shaft wall body and an elevator entrance groove formed in the elevator shaft wall body, a supporting frame plate is installed on the surface of the front end of the elevator shaft wall body, and locking assemblies are arranged between the two sides of the rear end of the supporting frame plate and the inner walls of the two sides of the elevator entrance groove. The four locking assemblies are used as transition structures and are combined with the elevator protective door composed of the elevator shaft wall body, the elevator entrance groove, the supporting frame plate, the first movable door body and the second movable door body for use; when the supporting frame plate is stably installed on the elevator shaft wall body through the four locking assemblies to protect and shield the elevator entrance groove, convenient and flexible reciprocating installation and disassembly conditions are achieved between the supporting frame plate and the locking assemblies and between the locking assemblies and the elevator shaft wall body. And the requirement for continuous use of the subsequent supporting frame plate and the locking assembly without damage is met, and the use cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to an elevator safety door. Background Technology

[0002] Currently, in the construction of high-rise buildings, simple elevators used for moving up and down in elevator shafts are one of the essential pieces of equipment for construction workers. To ensure the safety of both construction workers and non-construction workers during use, existing technology usually installs elevator safety doors outside the elevator entrance to prevent non-construction workers from operating them at will.

[0003] However, while the elevator safety doors currently in use can provide isolation, they are mostly fixed to the elevator shaft wall structure using a combination of bolts and nuts. After the building is completed, they still need to be disassembled with great effort. Secondly, for the opening and closing of the movable door inside the elevator safety door itself, the existing technology usually uses transmission locks to restrict it. These locks are easily damaged and also cause inconvenience to the construction workers when the key is lost. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides an elevator safety door, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: an elevator safety door, including an elevator shaft wall and an elevator entrance slot disposed inside the elevator shaft wall. A support frame plate is installed on the front surface of the elevator shaft wall, and locking components are provided between the two sides of the rear end of the support frame plate and the inner walls of the two sides of the elevator entrance slot. The locking components include a C-shaped sleeve plate and a threaded rod. The inner side of the C-shaped sleeve plate is fixedly connected to the inner wall of the corresponding side of the elevator entrance slot, and the front end of the C-shaped sleeve plate is detachably installed with screws to the rear end of the support frame plate. The middle part of the threaded rod is threadedly connected to the interior of the rear end structure of the C-shaped sleeve plate, and one end of the threaded rod is rubbed and pressed against the surface of the rear end of the elevator shaft wall. A first movable door body and a second movable door body are respectively hinged to the interior of the two sides of the support frame plate.

[0006] Preferably, the number of locking components is four, and the four locking components are arranged in pairs on both sides of the support frame plate to ensure the locking strength and stability between the elevator shaft wall and the support frame plate.

[0007] Preferably, an auxiliary wrench is fixedly connected to the other end of the threaded rod, and one end of the threaded rod adopts a T-shaped structure. The end face of the T-shaped structure is provided with friction texture to improve the friction limiting effect of the threaded rod on the elevator shaft wall.

[0008] Specifically, the front end of one side of the first movable door body is provided with an installation groove and two clearance grooves. The two clearance grooves are located at the top of the front end of one side of the first movable door body and the bottom of the rear end of one side, respectively, and are connected to the internal space of the installation groove. The top and bottom of one side of the second movable door body are fixedly connected with limit sleeves. The two limit sleeves can be engaged in the two clearance grooves respectively after the first movable door body and the second movable door body are horizontally opposite each other. The limit sleeves are completely fitted into the installation groove through the corresponding clearance grooves to avoid structural interference.

[0009] The selected component is a dual-output assembly with a meshing mechanism installed on the inner side of the mounting groove. The two output structures inside the dual-output assembly are respectively connected to an elastic rod. The front end of the input structure in the middle of the dual-output assembly is fixedly connected to a handle sleeve that engages with the front end structure on one side of the first movable door. The handle sleeve can engage with the movable ends of the two elastic rods through the dual-output assembly and engage with the interior of the two limiting sleeves to lock and limit the first and second movable doors.

[0010] Selectedly, the meshing dual output assembly consists of a transmission gear and two L-shaped straight tooth plates. The inner side of the middle part of the transmission gear is fitted with a support shaft fixedly installed on the inner wall of the middle part of the mounting groove through a bearing. One end of the two L-shaped straight tooth plates is meshed with the two sides of the transmission gear, and the other end of the two L-shaped straight tooth plates is away from the transmission gear and serves as the output structure of the meshing dual output assembly.

[0011] The selected two elastic rods each include a limiting rod, a buffer spring, and a positioning sleeve. The positioning sleeve is fixedly fitted inside the mounting groove, and one end of the limiting rod is engaged with the inner side of the middle of the positioning sleeve. The two ends of the buffer spring are respectively fixedly connected to one end surface of the limiting rod and the surface of the positioning sleeve. The other ends of the two limiting rods serve as the movable ends of the two elastic rods and can be engaged with the two limiting sleeves respectively, thereby satisfying the closing and limiting requirements of the first movable door and the second movable door inside the support frame.

[0012] Preferably, handles are fixedly connected to the front surface of the first movable door and the front surface of the second movable door, so as to facilitate the reciprocating opening, closing and flipping of the first movable door and the second movable door. One end of the glove sleeve is fixedly connected to the surface of the front end of the transmission gear and there is a clearance space between it and the transmission shaft to avoid structural interference.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model uses four locking components as transitional structures. When combined with the elevator shaft wall, elevator entrance slot, and elevator safety door consisting of a support frame plate, a first movable door, and a second movable door, it can not only stably install the support frame plate on the elevator shaft wall to protect and shield the elevator entrance slot through the four locking components, but also provide convenient and flexible reciprocating installation and disassembly conditions between the support frame plate and the locking components, and between the locking components and the elevator shaft wall. This meets the need for continuous use of the support frame plate and locking components without damage, and reduces the cost of use.

[0015] 2. This utility model uses two limiting sleeves, two elastic rods, a meshing double output assembly, and a handle sleeve to form a multi-functional locking structure. When combined with the first movable door, the mounting groove inside the first movable door, and the second movable door, the handle sleeve can drive the two elastic rods and the two limiting sleeves to be limited and fitted during the closing process of the first and second movable doors inside the support frame. This satisfies the locking and limiting requirements of the first and second movable doors. The specially designed handle sleeve is a common and frequently used tool for construction workers, but not for non-construction workers. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a right-side view of the structure of this utility model;

[0018] Figure 3 This is a partial cross-sectional schematic diagram of the first movable door body of the present invention;

[0019] Figure 4 This is a three-dimensional schematic diagram of the structural support frame plate of this utility model;

[0020] Figure 5 This is a right-side view of the structural support frame plate of this utility model;

[0021] Figure 6 This is a partially enlarged schematic diagram of the meshing dual-output component of this utility model;

[0022] Figure 7 The structure of this utility model Figure 3 Enlarged diagram of point A in the middle.

[0023] In the diagram: 1. Elevator shaft wall; 2. Elevator entrance slot; 3. Support frame plate; 4. Locking assembly; 41. C-shaped sleeve plate; 42. Threaded rod; 43. Auxiliary wrench; 5. First movable door; 6. Second movable door; 7. Mounting slot; 8. Limiting sleeve plate; 9. Engaging dual output assembly; 91. Transmission gear; 92. L-shaped straight tooth plate; 10. Elastic rod; 101. Limiting rod body; 102. Buffer spring; 103. Positioning sleeve plate; 11. Handle sleeve. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-7 An elevator safety door includes an elevator shaft wall 1 and an elevator entrance slot 2 set inside the elevator shaft wall 1. A support frame plate 3 is installed on the front surface of the elevator shaft wall 1, and locking components 4 are provided between the two sides of the rear end of the support frame plate 3 and the inner walls of the two sides of the elevator entrance slot 2. The locking components 4 include a C-shaped sleeve plate 41 and a threaded rod 42. The inner side of the C-shaped sleeve plate 41 is fixedly connected to the inner wall of the corresponding side of the elevator entrance slot 2, and the front end of the C-shaped sleeve plate 41 is detachably installed with screws to the rear end of the support frame plate 3. The middle part of the threaded rod 42 is threadedly connected to the interior of the rear end structure of the C-shaped sleeve plate 41, and one end of the threaded rod 42 is rubbed and pressed against the surface of the rear end of the elevator shaft wall 1. A first movable door body 5 and a second movable door body 6 are respectively hinged to the interior of the two sides of the support frame plate 3.

[0026] The number of locking components 4 is four, and the four locking components 4 are set in pairs on both sides of the support frame plate 3 to ensure the locking strength and stability between the elevator shaft wall 1 and the support frame plate 3. The other end of the threaded rod 42 is fixedly connected to the auxiliary wrench 43, and one end of the threaded rod 42 adopts a T-shaped structure. The end face of the T-shaped structure is provided with friction texture to improve the friction limiting effect of the threaded rod 42 on the elevator shaft wall 1.

[0027] The front end of one side of the first movable door 5 is provided with an installation groove 7 and two clearance grooves. The two clearance grooves are located at the top of the front end of one side of the first movable door 5 and the bottom of the rear end of one side, respectively, and are connected to the internal space of the installation groove 7. The top and bottom of one side of the second movable door 6 are fixedly connected with limit sleeves 8. The two limit sleeves 8 can be engaged in the two clearance grooves after the first movable door 5 and the second movable door 6 are horizontally opposite each other. The limit sleeves 8 are completely fitted into the interior of the installation groove 7 through the corresponding clearance grooves to avoid structural interference. The inner side of the middle of the installation groove 7 is fitted with a meshing double output component 9. The two output structures inside the meshing double output component 9 are respectively driven to a flexible rod 10. The front end of the middle input structure of the meshing double output component 9 is fixedly connected to a handle sleeve 11 that is engaged with the front end structure of one side of the first movable door 5. The handle sleeve 11 can be driven by the meshing double output component 9 to engage the movable ends of the two flexible rods 10 into the interior of the two limit sleeves 8, thereby locking and limiting the first movable door 5 and the second movable door 6.

[0028] The meshing dual-output assembly 9 consists of a transmission gear 91 and two L-shaped spur gears 92. A support shaft, fixedly mounted on the inner wall of the mounting groove 7, is mounted on the inner side of the middle of the transmission gear 91 via a bearing. One end of each of the two L-shaped spur gears 92 meshes with the two sides of the transmission gear 91, and the other ends of both L-shaped spur gears 92 are away from the transmission gear 91 and serve as the output structure of the meshing dual-output assembly 9. Both elastic rods 10 include a limiting rod 101, a buffer spring 102, and a positioning sleeve. 103, the positioning sleeve 103 is fixedly sleeved inside the mounting groove 7, and one end of the limiting rod 101 is engaged with the inner side of the middle of the positioning sleeve 103. The two ends of the buffer spring 102 are respectively fixedly connected to one end surface of the limiting rod 101 and the surface of the positioning sleeve 103. The other ends of the two limiting rods 101 serve as the movable ends of the two elastic rods 10 and can be engaged with the two limiting sleeves 8 respectively, thereby satisfying the closing and limiting requirements of the first movable door 5 and the second movable door 6 inside the support frame plate 3.

[0029] Handles are fixedly connected to the front surface of the first movable door 5 and the front surface of the second movable door 6, so that the first movable door 5 and the second movable door 6 can be opened, closed and flipped back and forth. One end of the glove sleeve 11 is fixedly connected to the front surface of the transmission gear 91 and there is a clearance space between it and the transmission shaft to avoid structural interference.

[0030] Working principle:

[0031] Example 1

[0032] To facilitate the installation of the elevator safety door formed by the support frame plate 3, the first movable door body 5, and the second movable door body 6 between the elevator shaft wall 1, firstly, four C-shaped sleeve plates 41 are respectively fitted onto the inner walls of the two sides of the elevator entrance slot 2. Then, the threaded rod 42 is rotated synchronously by the auxiliary wrench 43 until the threaded rod 42 is tightly attached to the surface of the rear end of the elevator shaft wall 1 to ensure the stability of the corresponding C-shaped sleeve plate 41. Similarly, the remaining three C-shaped sleeve plates 41 are operated in the same way.

[0033] After the four locking components 4 are installed and stabilized on the elevator shaft wall 1, the support frame plate 3 and the four locking components 4 are screwed together and fixed using existing technology. This allows the elevator safety door, composed of the support frame plate 3, the first movable door body 5, and the second movable door body 6, to protect the elevator entrance slot 2 inside the elevator shaft wall 1. When the elevator safety door needs to be disassembled later, it is only necessary to remove the screws between the support frame plate 3 and the four locking components 4, turn the four threaded rods 42 and move the four threaded rods 42 away from their respective C-shaped sleeve plates 41. This allows for disassembly without damage, providing conditions for continued use.

[0034] Example 2

[0035] For the locking limit between the first movable door 5 and the second movable door 6, the first movable door 5 is first closed horizontally inside the support frame plate 3. Then, a specific wrench is used to engage and turn the handle sleeve 11. Then, the handle sleeve 11 drives the transmission gear 91 to rotate synchronously. After that, the transmission gear 91 meshes with the two L-shaped straight tooth plates 92. The two L-shaped straight tooth plates 92 drive the two limiting rods 101 to move synchronously, and the positioning sleeves 103 corresponding to the two limiting rods 101 are compressed and contracted.

[0036] Next, the second movable door 6 is closed horizontally inside the support frame plate 3. The two limiting sleeves 8 on one side of the second movable door 6 are fitted into the mounting slots 7 provided on the first movable door 5 through the two clearance slots. Then, the wrench is removed to release the limiting of the handle sleeve 11. Subsequently, the limiting rods 101 inside the two elastic rods 10 are reset by the elastic force of their respective positioning sleeves 103, and one end of the two limiting rods 101 is respectively locked inside the two limiting sleeves 8 for limiting. This achieves the locking and limiting between the first movable door 5 and the second movable door 6. The specially designed handle sleeve 11 is a common and frequently used handle tool for construction workers, but not for non-construction workers.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An elevator safety door, comprising an elevator shaft wall (1) and an elevator entrance slot (2) disposed inside the elevator shaft wall (1), characterized in that: The front surface of the elevator shaft wall (1) is equipped with a support frame plate (3), and locking components (4) are provided between the two sides of the rear end of the support frame plate (3) and the inner walls of the two sides of the elevator entrance slot (2). The locking components (4) include a C-shaped sleeve plate (41) and a threaded rod (42). The inner side of the C-shaped sleeve plate (41) is fixedly connected to the inner wall of the corresponding side of the elevator entrance slot (2), and the front end of the C-shaped sleeve plate (41) and the rear end of the support frame plate (3) are detachably installed by screws. The middle part of the threaded rod (42) is threadedly connected to the interior of the rear end structure of the C-shaped sleeve plate (41), and one end of the threaded rod (42) is rubbed and pressed against the surface of the rear end of the elevator shaft wall (1). The first movable door (5) and the second movable door (6) are respectively hinged to the inner sides of the support frame plate (3).

2. The elevator safety door according to claim 1, characterized in that: The number of locking components (4) is four, and the four locking components (4) are arranged in pairs on both sides of the support frame plate (3).

3. An elevator safety door according to claim 1, characterized in that: The other end of the threaded rod (42) is fixedly connected to an auxiliary wrench (43), and one end of the threaded rod (42) adopts a T-shaped structure, with friction textures on the end face of the T-shaped structure.

4. An elevator safety door according to claim 1, characterized in that: The front end of one side of the first movable door (5) is provided with an installation groove (7) and two clearance grooves. The two clearance grooves are located at the top of the front end of one side of the first movable door (5) and the bottom of the rear end of one side, respectively, and are connected to the internal space of the installation groove (7). The top and bottom of one side of the second movable door (6) are fixedly connected with limit sleeves (8). The two limit sleeves (8) can be engaged in the two clearance grooves respectively after the first movable door (5) and the second movable door (6) are horizontally opposite each other, and the limit sleeves (8) are completely fitted into the interior of the installation groove (7) through the corresponding clearance groove.

5. An elevator safety door according to claim 4, characterized in that: The inner side of the middle of the mounting groove (7) is fitted with a meshing double output assembly (9). The two output structures inside the meshing double output assembly (9) are respectively connected to an elastic rod (10). The front end of the middle input structure of the meshing double output assembly (9) is fixedly connected to a handle sleeve (11) that is engaged with the front end structure of one side of the first movable door body (5). The handle sleeve (11) can be driven by the meshing double output assembly (9) to engage the movable ends of the two elastic rods (10) into the interior of the two limiting sleeves (8) respectively, thereby locking and limiting the first movable door body (5) and the second movable door body (6).

6. An elevator safety door according to claim 5, characterized in that: The meshing dual output assembly (9) consists of a transmission gear (91) and two L-shaped straight tooth plates (92). The inner side of the middle part of the transmission gear (91) is fitted with a support shaft fixedly installed on the inner wall of the middle part of the mounting groove (7) through a bearing. One end of the two L-shaped straight tooth plates (92) is meshed with the two sides of the transmission gear (91), and the other end of the two L-shaped straight tooth plates (92) is far away from the transmission gear (91) and serves as the output structure of the meshing dual output assembly (9).

7. An elevator safety door according to claim 5, characterized in that: Both of the elastic rods (10) include a limiting rod (101), a buffer spring (102), and a positioning sleeve (103). The positioning sleeve (103) is fixedly sleeved inside the mounting groove (7), and one end of the limiting rod (101) is engaged with the inner side of the middle part of the positioning sleeve (103). The two ends of the buffer spring (102) are respectively fixedly connected to one end surface of the limiting rod (101) and the surface of the positioning sleeve (103). The other ends of the two limiting rods (101) serve as the movable ends of the two elastic rods (10) and can be engaged with the two limiting sleeves (8) respectively.

8. An elevator safety door according to claim 6, characterized in that: Handles are fixedly connected to the front surface of the first movable door (5) and the front surface of the second movable door (6), and one end of the glove sleeve (11) is fixedly connected to the front surface of the transmission gear (91) and there is a clearance space between it and the transmission shaft.

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