Extendable elevator toeboard structure

Abstract

The utility model discloses an extendable elevator toeboard structure, including an elevator car, a fixed toeboard fixedly connected to the bottom end of one side of the elevator car, a storage cavity is provided in the fixed toeboard, a fixed support column is fixedly installed on one side of the storage cavity close to the elevator car, an extendable component 1 and an extendable component 2 are movably provided on both sides of the fixed support column, the extendable component 1 and the extendable component 2 are symmetrically arranged, and the extendable component 1 and the extendable component 2 are movably connected to the movable support column on one side away from the fixed support column, the movable support column is fixedly installed on the side of the movable toeboard away from the fixed toeboard, the movable toeboard is slidably arranged in the storage cavity, and a buffer plate is fixedly connected to the end of the movable toeboard. By arranging the extendable component 1 and the extendable component 2, while ensuring that the movable toeboard can be extended and retracted, the support strength of the movable toeboard is improved, so as to avoid damage to the movable toeboard when the trapped person kicks the movable toeboard.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an extendable elevator footboard structure. Background Art

[0002] With the rapid development of the construction industry, houses are getting taller and taller. Elevators are an indispensable means of transportation in people's daily lives and are becoming more and more important. In the elevator industry, elevators need to be frequently inspected and maintained. However, accidents may occur during the elevator inspection process. In order to avoid injuries to personnel in the event of an accident, it is necessary to install a toe guard at the bottom of the car. On the other hand, when an elevator fails near a floor station and cannot operate, the personnel in the car pull open the car door and the floor door to save themselves. When jumping out of the car, the toe guard can play a shielding role to prevent people from falling into the shaft. Therefore, the toe guard is very important for elevators.

[0003] Existing toeboards meet the national standard requirements and are suitable for pits of standard depth. They can fully reflect the required functions, and are low in production cost and simple in installation. However, for pits with a smaller depth, the existing fixed-length toeboards cannot meet the use requirements. At this time, telescopic toeboards are needed, which can be telescoped to adapt to shallower pits. For example, a Chinese patent with publication number CN213475082U discloses an elevator structure with a telescopic toe guard, including an elevator shaft and a car in the elevator shaft, wherein a telescopic toe guard extending vertically downward is installed at the bottom of the car, wherein the telescopic toe guard includes a fixed toe guard and a movable toe guard, wherein the fixed toe guard is fixed on a bottom beam of the car, wherein the movable toe guard is slidably matched with the fixed toe guard so that the movable toe guard can move up and down along the fixed toe guard, and further includes a limit switch device and a travel device for detecting the extension degree of the telescopic toe guard; the limit switch device includes a contact block and a limit switch, wherein the contact block contacts the limit switch and forms a limit branch, and the travel device includes a travel switch and a travel trigger; the limit branch and the travel branch are connected in parallel with each other, and the two ends after the parallel connection are connected to the control circuit of the car.

[0004] The elevator can adapt to pits of different depths by setting up movable toe guards. However, the fixed toe guard and the movable toe guard are only connected by a sliding rail and a slider, which results in low support strength of the movable toe guard and easy deformation, affecting the protective effect. Therefore, we propose an extendable elevator toe guard structure to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to provide an extendable elevator toe guard structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an extendable elevator toe guard structure, comprising an elevator car, a fixed toe guard being fixedly connected to the bottom end of one side of the elevator car, a storage cavity being opened in the fixed toe guard, a fixed support column being fixedly installed on the side of the storage cavity close to the elevator car, an extendable component 1 and an extendable component 2 being movably provided on both sides of the fixed support column, the extendable component 1 and the extendable component 2 being symmetrically arranged and a side of the extendable component 1 and the extendable component 2 away from the fixed support column being movably connected to a movable support column, the movable support column being fixedly installed on a side of the movable toe guard away from the fixed toe guard, the movable toe guard being slidably arranged in the storage cavity and a buffer plate being fixedly connected to the end of the movable toe guard.

[0007] Preferably, the buffer plate is an arc-shaped plate.

[0008] Preferably, two ends of the movable support column are respectively fixedly connected to fixing seats, and the fixing seats are fixedly connected to two sides of one end surface of the movable foot guard plate.

[0009] Preferably, the movable support column and the fixed support column are both quadrangular column structures.

[0010] Preferably, the extension component 2 includes a fixed frame 1, a fixed base 1, a sliding frame 1, a movable base 1, a connecting rod 1, a connecting rod 2, a fixed base 2, a movable base 2, a fixed frame 2, and a sliding frame 2. The fixed frame 1 is fixedly sleeved on one end of the movable support column, one side of the fixed frame 1 is fixedly connected to the fixed base 1, the fixed base 1 is hinged to one end of the connecting rod 1, and the other end of the connecting rod 1 is hinged to the movable base 2, the movable base 2 is fixedly connected to the sliding frame 2, and the sliding frame 2 is slidably sleeved on the fixed support column, the middle part of the connecting rod 1 is hinged to the middle part of the connecting rod 2 through a cylindrical pin, one end of the connecting rod 2 is hinged to the fixed base 2, the fixed base 2 is fixedly connected to the fixed frame 2, the fixed frame 2 is fixedly sleeved on one end of the fixed support column, and the other end of the connecting rod 2 is hinged to the movable base 1, the movable base 1 is fixedly connected to the sliding frame 1, and the sliding frame 1 is slidably sleeved on the movable support column.

[0011] Preferably, the connecting rod 1 and the connecting rod 2 are cross-arranged in an X-shaped structure, and the sliding frame 1 and the sliding frame 2 are both in a U-shaped structure.

[0012] Compared with the prior art, the beneficial effect of the utility model is that by setting extension component 1 and extension component 2, while ensuring that the movable toe guard can be extended and retracted, the supporting strength of the movable toe guard is improved, thereby preventing the movable toe guard from being damaged when the trapped person kicks the movable toe guard. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of the fixed toe plate of the utility model.

[0016] In the figure: elevator car 1, fixed toe guard 2, storage chamber 21, movable toe guard 3, buffer plate 4, movable support column 5, fixed seat 51, extension component one 6, extension component two 7, fixed frame one 71, fixed base one 72, sliding frame one 73, movable base one 74, connecting rod one 75, connecting rod two 76, fixed base two 77, movable base two 78, fixed frame two 79, sliding frame two 70, fixed support column 8. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0018] Example 1

[0019] Reference Figure 1 , 2 , which is the first embodiment of the utility model, and this embodiment provides an extendable elevator toeboard structure, including an elevator car 1, a fixed toeboard 2 is fixedly connected to the bottom end of one side of the elevator car 1, a storage cavity 21 is opened in the fixed toeboard 2, a fixed support column 8 is fixedly installed on one side of the storage cavity 21 close to the elevator car 1, and an extendable component 1 6 and an extendable component 2 7 are movably provided on both sides of the fixed support column 8, respectively, the extendable component 1 6 and the extendable component 2 7 are symmetrically arranged and the side of the extendable component 1 6 and the extendable component 2 7 away from the fixed support column 8 is movably connected to a movable support column 5, the movable support column 5 is fixedly installed on the side of the movable toeboard 3 away from the fixed toeboard 2, the movable toeboard 3 is slidably arranged in the storage cavity 21 and the end of the movable toeboard 3 is fixedly connected to a buffer plate 4.

[0020] The elevator car 1 descends to the lowest end in the elevator shaft, and the buffer plate 4 contacts the ground of the bottom pit. The buffer plate 4 with an arc structure buffers the impact force of the contact to prevent the impact force from directly acting on the movable foot guard 3. The movable foot guard 3 is retracted into the storage chamber 21 under the reverse action of the ground. When the movable foot guard 3 retracts, it drives the extension component 1 6 and the extension component 2 7 to work to achieve the retraction of the movable foot guard 3. When the elevator car 1 rises, the movable foot guard 3 and the buffer plate 4 are extended from the storage chamber 21 under the action of their own weight. At the same time, the extension component 1 6 and the extension component 2 7 work in the opposite direction to expand the movable foot guard 3, thereby increasing the overall protection area. At the same time, the cross-arranged connecting rod 1 75 and the connecting rod 2 76 support the movable foot guard 3 to ensure the protection strength of the movable foot guard 3.

[0021] Example 2

[0022] Reference Figure 1-3 , which is the second embodiment of the utility model, and this embodiment is based on the previous embodiment. Specifically, the buffer plate 4 is an arc-shaped plate. When the elevator car 1 descends to the lowest end in the elevator shaft, the end of the buffer plate 4 with an arc-shaped structure first hits the ground of the bottom pit, and the buffer plate 4 with an arc-shaped structure buffers the impact force of the impact and prevents the impact force from directly acting on the movable foot guard plate 3.

[0023] Specifically, both ends of the movable support column 5 are fixedly connected to the fixing seat 51 respectively, and the fixing seat 51 is fixedly connected to both sides of one end surface of the movable foot guard 3. The fixing seat 51 fixes and installs the movable support column 5 to keep the position of the movable support column 5 fixed.

[0024] Specifically, the movable support column 5 and the fixed support column 8 are both quadrangular prism structures, and the quadrangular prism structure enables the extension component 2 7 to achieve linear sliding, thereby preventing the sliding frame 1 73 and the sliding frame 2 70 from rotating.

[0025] Specifically, the extension assembly 27 includes a fixed frame 171, a fixed base 172, a sliding frame 173, a movable base 174, a connecting rod 175, a connecting rod 276, a fixed base 277, a movable base 278, a fixed frame 279, and a sliding frame 270. The fixed frame 171 is fixedly sleeved with one end of the movable support column 5, one side of the fixed frame 171 is fixedly connected to the fixed base 172, the fixed base 172 is hinged to one end of the connecting rod 175, and the other end of the connecting rod 175 is hinged to the movable base 278. Seat 2 78 is fixedly connected to sliding frame 2 70, sliding frame 2 70 is slidably sleeved on fixed support column 8, the middle part of connecting rod 1 75 is hinged to the middle part of connecting rod 2 76 through a cylindrical pin, one end of connecting rod 2 76 is hinged to fixed base 2 77, fixed base 2 77 is fixedly connected to fixed frame 2 79, fixed frame 2 79 is fixedly sleeved on one end of fixed support column 8, the other end of connecting rod 2 76 is hinged to movable base 1 74, movable base 1 74 is fixedly connected to sliding frame 1 73, sliding frame 1 73 is slidably sleeved on movable support column 5.

[0026] Under the reverse action of the ground, the movable foot guard 3 is retracted into the storage chamber 21. When the movable foot guard 3 is retracted, the extension component 1 6 and the extension component 2 7 are driven to work. The extension component 1 6 and the extension component 2 7 are symmetrically arranged. The sliding frame 1 73 and the sliding frame 2 70 slide toward the middle along the two sides of the movable support column 5 and the fixed support column 8 respectively, thereby driving the cross-arranged connecting rod 1 75 and the connecting rod 2 76 to rotate to achieve the retraction of the movable foot guard 3. When the elevator car 1 is raised, the movable foot guard 3 and the buffer plate 4 are extended from the storage chamber 21 under the action of their own weight. At the same time, the sliding frame 1 73 and the sliding frame 2 70 slide toward both sides along the middle of the movable support column 5 and the fixed support column 8 respectively, thereby expanding the movable foot guard 3, thereby increasing the overall protection area. At the same time, the cross-arranged connecting rod 1 75 and the connecting rod 2 76 support the movable foot guard 3 to ensure the protection strength of the movable foot guard 3.

[0027] Furthermore, connecting rod 1 75 and connecting rod 2 76 are cross-arranged in an X-shaped structure, and sliding frame 1 73 and sliding frame 2 70 are both U-shaped structures. The U-shaped structure matches the movable support column 5 and the fixed support column 8 to ensure that sliding frame 1 73 and sliding frame 2 70 slide in a straight line, and extension component 1 6 and extension component 2 7 are both arranged on the back of the movable foot guard 3 to keep the front of the movable foot guard 3 flat.

[0028] Example 3

[0029] Reference Figure 1-3 , which is the third embodiment of the utility model. This embodiment is based on the above two embodiments. When in use, the elevator car 1 descends to the lowest end in the elevator shaft, and the buffer plate 4 contacts the ground of the bottom pit. The buffer plate 4 with an arc structure buffers the impact force of the contact to prevent the impact force from directly acting on the movable foot guard 3. Under the reverse action of the ground, the movable foot guard 3 is retracted into the storage chamber 21. When the movable foot guard 3 retracts, it drives the extension component 1 6 and the extension component 2 7 to work. The extension component 1 6 and the extension component 2 7 are symmetrically arranged. The sliding frame 1 73 and the sliding frame 2 70 are respectively along the movable support column 5 and the fixed support The two sides of the column 8 slide toward the middle, thereby driving the cross-arranged connecting rod 1 75 and the connecting rod 2 76 to rotate, thereby realizing the retraction of the movable foot guard 3. When the elevator car 1 rises, the movable foot guard 3 and the buffer plate 4 extend out from the storage cavity 21 under the action of their own weight. At the same time, the sliding frame 1 73 and the sliding frame 2 70 slide toward both sides along the middle of the movable support column 5 and the fixed support column 8 respectively, thereby unfolding the movable foot guard 3, thereby increasing the overall protection area. At the same time, the cross-arranged connecting rod 1 75 and the connecting rod 2 76 support the movable foot guard 3, thereby ensuring the protection strength of the movable foot guard 3.

[0030] Elevator car 1, fixed toe guard 2, storage cavity 21, movable toe guard 3, buffer plate 4, movable support column 5, fixed seat 51, extension component one 6, extension component two 7, fixed frame one 71, fixed base one 72, sliding frame one 73, movable base one 74, connecting rod one 75, connecting rod two 76, fixed base two 77, movable base two 78, fixed frame two 79, sliding frame two 70, fixed support column 8.

Claims

1. An extendable elevator toe guard structure, comprising an elevator car (1), characterized in that: A fixed footboard (2) is fixedly connected to the bottom end of one side of the elevator car (1), a storage cavity (21) is provided in the fixed footboard (2), a fixed support column (8) is fixedly installed on the side of the storage cavity (21) close to the elevator car (1), and an extension component (6) and an extension component (7) are movably provided on both sides of the fixed support column (8), the extension component (6) and the extension component (7) are symmetrically arranged, and the side of the extension component (6) and the extension component (7) away from the fixed support column (8) is movably connected to the movable support column (5), the movable support column (5) is fixedly installed on the side of the movable footboard (3) away from the fixed footboard (2), the movable footboard (3) is slidably arranged in the storage cavity (21), and the end of the movable footboard (3) is fixedly connected to a buffer plate (4).

2. The extendable elevator toeboard structure according to claim 1, characterized in that: The buffer plate (4) is an arc-shaped plate.

3. The extendable elevator toe guard structure according to claim 1, characterized in that: Both ends of the movable support column (5) are respectively fixedly connected to a fixing seat (51), and the fixing seat (51) is fixedly connected to both sides of one end surface of the movable foot guard plate (3).

4. The extendable elevator toe guard structure according to claim 1, characterized in that: The movable support column (5) and the fixed support column (8) are both quadrangular column structures.

5. The extendable elevator toe guard structure according to claim 1, characterized in that: The extension assembly 2 (7) comprises a fixed frame 1 (71), a fixed base 1 (72), a sliding frame 1 (73), a movable base 1 (74), a connecting rod 1 (75), a connecting rod 2 (76), a fixed base 2 (77), a movable base 2 (78), a fixed frame 2 (79), and a sliding frame 2 (70). The fixed frame 1 (71) is fixedly sleeved on one end of the movable support column (5). One side of the fixed frame 1 (71) is fixedly connected to the fixed base 1 (72). The fixed base 1 (72) is hinged to one end of the connecting rod 1 (75). The other end of the connecting rod 1 (75) is hinged to the movable base 2 (78). The movable base 2 ( 78) is fixedly connected to a sliding frame 2 (70), the sliding frame 2 (70) is slidably sleeved on a fixed support column (8), the middle part of the connecting rod 1 (75) is hinged to the middle part of the connecting rod 2 (76) through a cylindrical pin, one end of the connecting rod 2 (76) is hinged to a fixed base 2 (77), the fixed base 2 (77) is fixedly connected to a fixed frame 2 (79), the fixed frame 2 (79) is fixedly sleeved on one end of a fixed support column (8), the other end of the connecting rod 2 (76) is hinged to a movable base 1 (74), the movable base 1 (74) is fixedly connected to a sliding frame 1 (73), the sliding frame 1 (73) is slidably sleeved on a movable support column (5).

6. The extendable elevator toe guard structure according to claim 5, characterized in that: The connecting rod 1 (75) and the connecting rod 2 (76) are cross-arranged in an X-shaped structure, and the sliding frame 1 (73) and the sliding frame 2 (70) are both in a square-shaped structure.

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