A three-door firefighter elevator

Abstract

This utility model discloses a three-door firefighter elevator. The rear inner wall of the car is equipped with a handrail. The left and right outer walls of the mounting frame are provided with front-to-back extending first slide rails, each containing a first slider. The rear side wall of the mounting frame has a sliding groove. The upper rear surface of the decorative panel has two fixed seats and a rotating shaft. The rotating shaft passes through the sliding groove and hinges the decorative panel to the mounting frame. The left and right sides of the decorative panel have second slide rails, each containing a second slider. The first and second sliders are respectively connected to the two ends of an elastic body. The outer wall of the mounting frame at the ventilation holes is equipped with high-temperature resistant filter cotton. The three-door firefighter elevator provided by this utility model can reduce the amount of smoke entering the car, and the connection between the decorative panel and the mounting frame is reliable. When the mounting panel is lowered, it is fixed and does not shake, which is beneficial for rescue. This three-door firefighter elevator belongs to the field of elevator technology and is applied to fire rescue.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and in particular to a three-door firefighter elevator. Background Technology

[0002] A three-door firefighter elevator refers to a firefighter elevator with three entrances and exits in the car. Currently, firefighter elevators typically have a mounting frame connected to a safety window at the top of the car. The mounting frame has a rotating groove connecting to one end of a decorative panel, allowing the panel to be moved and rotated. A ladder is installed on the side of the decorative panel facing the mounting frame, and an L-shaped buckle at the other end of the panel temporarily secures it to the mounting frame by interlocking with corresponding holes. Ventilation openings are located on the side walls of the mounting frame to ventilate the elevator interior. The decorative panel has a handle for people inside the car to pull it open. This design is both aesthetically pleasing and practical, but its application in a three-door firefighter elevator has the following drawbacks: First, there is no buffer structure between the decorative panel and the mounting frame. Even if trapped personnel can support the panel and descend slowly after it is opened, they are prone to losing their grip, posing a safety threat to those inside the car. Second, the ventilation openings are directly connected to the interior of the car, allowing air from the shaft to directly enter the car. In the event of a fire, this often results in a small amount of smoke entering the car. Utility Model Content

[0003] The purpose of this utility model is to provide a three-door firefighter elevator to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] Firstly, this utility model provides a three-door firefighter elevator, including a car, a mounting frame, and a decorative panel. The rear inner wall of the car is provided with a handrail, the rear wall of the mounting frame is provided with ventilation holes, the upper front surface of the decorative panel is provided with an L-shaped piece, the front wall of the mounting frame is provided with an opening adapted to the L-shaped piece for inserting the decorative panel, the rear side wall of the mounting frame is provided with a sliding groove, the upper rear surface of the decorative panel is provided with two fixed seats, and a rotating shaft is connected to the two fixed seats. The rotating shaft passes through the sliding groove and hinges the decorative panel to the mounting frame. The left and right outer walls of the mounting frame are provided with a first slide rail extending forward and backward. The first slide rail is located between the sliding groove and the top of the mounting frame. The left and right sides of the decorative panel are provided with a second slide rail. A first slider is slidably connected in the first slide rail, and a second slider is slidably connected in the second slide rail. The first slider and the second slider are respectively connected to the two ends of an elastic body. The kinetic energy of the front end of the decorative panel falling causes the elastic body to deform and move the first slider and the second slider closer to the sliding groove. High-temperature resistant filter cotton is connected to the ventilation holes. In this design, when the decorative panel is closed, the first slider is at the foremost position in the first slide rail, and the second slider is at the foremost position in the second slide rail.

[0006] It is understood that the decorative panel is rectangular, and the edges of the decorative panel protrude beyond the mounting frame.

[0007] In this design, the handrail on the rear inner wall of the elevator car can serve as an "operation support point" for firefighters and also provide a stable grip for evacuees, preventing falls during elevator rides. In scenarios requiring self-rescue, trapped individuals can step on the handrail and push the decorative panel forward to detach the L-shaped piece from the mounting frame. This design, by setting the cooperation between the slide rail and the slider, and connecting the first and second sliders to the two ends of the elastic body respectively, can reduce the kinetic energy of the decorative panel when it descends, effectively preventing injuries to trapped individuals and facilitating self-rescue and escape in crisis situations. The high-temperature resistant filter cotton can reduce the amount of smoke entering the elevator car.

[0008] It is understandable that when the L-shaped piece detaches from the mounting frame, the foremost side of the decorative panel falls a certain distance first, stretching the elastic body and reducing the kinetic energy of the falling decorative panel, thus lowering its falling speed. Subsequently, the decorative panel continues to descend.

[0009] As the decorative panel continues to descend, the original rear side of the decorative panel gradually becomes the upper side, and the elastic body drives the second slider to move upward in the second slide rail and drives the first slider to move backward in the first slide rail;

[0010] When the front side of the decorative panel is below, the second slide rail becomes vertically positioned, the second slider is positioned above the second slide rail, and the first slider is positioned on the rear section of the first slide rail. In this solution, the elastic body will not hinder the descent of the decorative panel due to the movement of the first slider and the second slider.

[0011] When the danger is eliminated, the maintenance personnel will reset the decorative panel, which will simultaneously reset the first slider and the second slider, and confirm whether the elastomer needs to be replaced through inspection.

[0012] As an extension of the above solution, when the decorative panel is closed, the second slider is located between the mounting frame and the front inner wall of the car. This extended solution allows the elastomer to provide better cushioning for the decorative panel.

[0013] As an extension of the above solution, the second slide rail is located on the upper surface of the decorative panel. This conceals the elastomer and prevents it from being exposed.

[0014] As an extension of the above solution, the elastic body is either a cylindrical helical tension spring or a metal leaf spring. Firefighter elevators need to serve for extended periods, and the environment above the car may contain condensation, dust, and slight vibrations. Therefore, the elastic body must maintain stable elasticity over a long period and not fail due to aging. This extended solution optimizes the elastic body to meet the core requirements of safety, reliability, ease of operation, and long-term stability of the firefighter elevator under different operating conditions.

[0015] As an extension of the above solution, an extension post is connected to the first slider, and the end of the extension post has a rotating part. The elastic body is connected to the rotating part. When the decorative panel is opened, the first slider moves, and the elastic body also moves accordingly. At this time, the elastic body is connected to the rotating part (such as a universal joint, bushing, rotatable hook, etc.), which can realize the rotatable connection between the elastic body and the slider, avoid the elastic body being fixed, and reduce the interference between the elastic body and the first slider.

[0016] As an extension of the above solution, a receiving groove is provided at the contact point between the decorative panel and the mounting frame. A rubber strip is fixedly connected to the receiving groove, and the rubber strip has an opening to accommodate the mounting frame. In the aforementioned solution, the use of high-temperature resistant filter cotton reduces the amount of smoke entering the elevator car. However, a small amount of smoke may still enter the car through the gap between the mounting frame and the upper surface of the decorative panel. This extension, by using a rubber strip to adhere to the mounting frame, further prevents smoke from entering the elevator car. Additionally, during elevator operation, vibrations from starting, stopping, and bumping can cause slight collisions between the decorative panel and the mounting frame. This extension helps to buffer the impact of these collisions, preventing noise and component wear. The receiving groove makes the connection between the rubber strip and the decorative panel more secure and less likely to fall off. It should be noted that the mounting frame does not sink into the receiving groove; the rubber strip protrudes from the upper surface of the decorative panel, and the mounting frame only contacts the opening of the rubber strip. The rubber strip does not prevent the decorative panel from falling off.

[0017] As an extension of the above solution, the opening of the adhesive strip is interference-fitted with the mounting frame. This results in a larger contact area and a tighter connection between the adhesive strip and the mounting frame, further preventing the mounting frame from colliding with the decorative panel and causing abnormal noise.

[0018] As an extension of the above solution, the rear wall of the mounting frame is provided with a latch, and the upper rear surface of the decorative panel is provided with a movable clamp that matches the latch. This extension allows the decorative panel to be fixed in place when it is opened, preventing it from shaking during rescue operations.

[0019] As an extension of the above solution, the movable caliper includes a connecting seat, a first caliper claw, a second caliper claw, and a spring. The connecting seat is fixedly connected to the decorative panel, the first caliper claw is fixedly connected to the connecting seat, and the second caliper claw is slidably connected to the connecting seat. The front end of the first caliper claw and the front end of the second caliper claw both have a first notch, and the middle part of the first caliper claw and the middle part of the second caliper claw both have a second notch. The spring causes the first caliper claw and the second caliper claw to close. The two first notches together form an entry port that allows the locking ring to pass through, and the two second notches together form a closing port that accommodates the locking ring.

[0020] The snap ring enters the engagement port through the inlet, and the engagement port prevents the snap ring from disengaging. The design of this extension scheme makes the movable clamp and the snap ring simple in structure, reliable in operation, and repositionable.

[0021] As an extension of the above solution, the connecting seat is provided with a slot, the second claw is slidably connected to the slot, and the spring is located between the end of the slot and the second claw, pushing the second claw towards the first claw. This extension makes the movable caliper structure simple and easy to reset.

[0022] The three-door firefighter elevator provided by this utility model can reduce the amount of smoke entering the car, and the connection between the decorative panel and the mounting frame is reliable. When the mounting panel is lowered, it can be fixed and does not shake, which is conducive to rescue. The three-door firefighter elevator provided by this utility model belongs to the field of elevator technology and is used in fire rescue. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0024] Figure 1 This is a schematic diagram of the car of the three-door firefighter elevator provided by this utility model;

[0025] Figure 2 This is a schematic diagram of the mounting frame and decorative panel of this utility model;

[0026] Figure 3 This is a schematic diagram of the decorative panel of this utility model;

[0027] Figure 4 yes Figure 3 Enlarged view of part A in the middle;

[0028] Figure 5 This is a schematic diagram of the mounting frame in this utility model.

[0029] In the attached diagram: 100, mounting frame; 101, ventilation hole; 102, handrail; 103, sliding groove; 104, first slide rail; 105, second slide rail; 106, first slider; 107, second slider; 108, extension column; 109, rotating part; 110, snap ring; 200, decorative panel; 201, fixed base; 202, rotating shaft; 203, rubber strip; 300, elastomer; 400, movable caliper; 401, connecting base; 402, first pawl; 403, second pawl; 404, spring; 405, slot. Detailed Implementation

[0030] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, if there are words such as "several", they mean one or more, "multiple" means two or more, "greater than", "less than", "exceeding" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] Reference Figures 1 to 5 The following are several embodiments of a three-door firefighter elevator according to this utility model.

[0035] like Figures 1 to 5As shown, a three-door firefighter elevator includes a car, a mounting frame 100, and a decorative panel 200. The rear inner wall of the car is provided with a handrail 102. The rear wall of the mounting frame 100 has ventilation holes 101. The upper front surface of the decorative panel 200 has an L-shaped piece. The front wall of the mounting frame 100 has an opening adapted to the L-shaped piece for inserting the decorative panel 200. The rear side wall of the mounting frame 100 has a sliding groove 103. The upper rear surface of the decorative panel 200 has two fixed seats 201, and a rotating shaft 202 is connected to the two fixed seats 201. The rotating shaft 202 passes through the sliding groove 103 and hinges the decorative panel 200 to the mounting frame 100. The left and right sides of the mounting frame 100... The outer side wall is provided with a first slide rail 104 extending forward and backward. The first slide rail 104 is located between the sliding groove 103 and the top of the mounting frame 100. Second slide rails 105 are installed on the left and right sides of the decorative panel 200. A first slider 106 is slidably connected in the first slide rail 104, and a second slider 107 is slidably connected in the second slide rail 105. The first slider 106 and the second slider 107 are respectively connected to the two ends of the elastic body 300. The kinetic energy of the front end of the decorative panel 200 falling causes the elastic body 300 to deform and move the first slider 106 and the second slider 107 closer to the sliding groove 103. A high-temperature resistant filter cotton is connected to the ventilation hole 101. In this embodiment, when the decorative panel 200 is closed, the first slider 106 is at the foremost side of the first slide rail 104, and the second slider 107 is at the foremost side of the second slide rail 105.

[0036] It is understood that the upper surface of the decorative panel 200 is provided with a ladder for climbing, the decorative panel 200 is rectangular, and the edges of the decorative panel 200 all protrude from the mounting frame 100.

[0037] In this design, the handrail 102 on the rear inner wall of the elevator car can serve as an "operation support point" for firefighters and also provide a stable grip for evacuees, preventing falls during elevator rides. In scenarios requiring self-rescue, trapped individuals can step on the handrail 102 and push the decorative panel 200 forward to detach the L-shaped piece on the decorative panel 200 from the mounting frame 100. By setting the cooperation between the slide rail and the slider, and connecting the first slider 106 and the second slider 107 to the two ends of the elastic body 300 respectively, the descent speed of the decorative panel 200 is effectively reduced, effectively preventing injuries to trapped individuals and facilitating self-rescue and escape in crisis situations. The high-temperature resistant filter cotton can reduce the amount of smoke entering the elevator car.

[0038] It is understandable that when the L-shaped piece detaches from the mounting frame 100, at the moment the decorative panel 200 falls, the foremost side of the decorative panel 200 falls a certain distance first, and the elastic body 300 is stretched, the kinetic energy of the falling decorative panel 200 is weakened, and the falling speed of the decorative panel 200 is reduced, and then the decorative panel 200 continues to fall.

[0039] As the decorative panel 200 continues to descend, the original rear side of the decorative panel 200 gradually becomes the upper side, and the elastic body 300 drives the second slider 106 to move upward in the second slide rail 105 and drives the first slider 106 to move backward in the first slide rail 104.

[0040] When the front side of the decorative panel 200 falls to the bottom, the second slide rail 105 becomes vertically positioned, the second slider 107 is positioned above the second slide rail 105, and the first slider 106 is positioned on the rear section of the first slide rail 104. Due to the displacement of the first slider 106 and the second slider 107, the elastic body 300 does not hinder the descent of the decorative panel 200.

[0041] When the danger is averted, the maintenance personnel will reset the decorative panel 200, which will simultaneously reset the first slider 106 and the second slider 107. They will then inspect and confirm whether the elastomer 300 needs to be replaced.

[0042] The number of elastic bodies 300 is two, which are respectively arranged on the left and right sides of the mounting frame 100 so that the decorative panel 200 is subjected to uniform force.

[0043] In some alternative embodiments, when the decorative panel 200 is closed, the second slider 107 is located between the mounting frame 100 and the front inner wall of the car, which allows the elastomer 300 to provide a better cushioning effect on the decorative panel 200.

[0044] In some alternative embodiments, the second slide rail 105 is located on the upper surface of the decorative panel 200. This conceals the elastomer 300, preventing it from being exposed.

[0045] Firefighter elevators require long-term service, and the environment on the car top may contain condensation, dust, and slight vibrations. Therefore, the elastic body 300 must maintain stable elasticity over a long period and not fail due to aging. In some optional embodiments, the elastic body 300 is configured as either a cylindrical helical tension spring or a sheet spring. The elastic body 300 is optimized to meet the core requirements of safety, reliability, ease of operation, and long-term stability of the firefighter elevator under different operating conditions.

[0046] In some optional embodiments, since the first slider 106 moves when the decorative panel 200 is opened, and the elastic body 300 also moves accordingly, an extension post 108 can be connected to the first slider 106. The end of the extension post 108 has a rotating part 109, and the elastic body 300 is connected to the rotating part 109. At this time, the connection between the elastic body 300 and the rotating part 109 (such as a universal joint, bushing, rotatable hook, etc.) can realize the rotatable connection between the elastic body 300 and the slider, avoiding the elastic body 300 being fixed and reducing the interference between the elastic body 300 and the first slider 106.

[0047] In some optional embodiments, a receiving groove is provided at the contact point between the decorative panel 200 and the mounting frame 100. A rubber strip 203 is fixedly connected to the receiving groove, and the rubber strip 203 has an opening to accommodate the mounting frame 100. In the aforementioned embodiments, the use of high-temperature resistant filter cotton reduces the amount of smoke entering the elevator car. However, a small amount of smoke may still enter the car through the gap between the mounting frame 100 and the upper surface of the decorative panel 200. This extended solution, by setting the rubber strip 203 to adhere to the mounting frame 100, further prevents smoke from entering the elevator car. Additionally, during elevator operation, vibrations occur due to starting, stopping, and bumping, potentially causing slight collisions between the decorative panel 200 and the mounting frame 100. This extended solution helps buffer the "collision impact" between the decorative panel 200 and the mounting frame 100, preventing abnormal noises and component wear. The receiving groove makes the connection between the rubber strip 203 and the decorative panel 200 more secure and less prone to falling off. It should be explained that the mounting frame 100 does not sink into the receiving groove, the adhesive strip 203 protrudes from the upper surface of the decorative panel 200, the mounting frame 100 only contacts the opening of the adhesive strip 203, and the adhesive strip 203 does not prevent the decorative panel 200 from falling.

[0048] In some embodiments, the opening of the adhesive strip 203 is interference-fitted with the mounting frame 100. This results in a larger contact area and a tighter connection between the adhesive strip 203 and the mounting frame 100. At the same time, the adhesive strip 203 clamps the mounting frame 100, further preventing the mounting frame 100 from colliding with the decorative panel 200 and causing abnormal noise.

[0049] In some embodiments, the rear wall of the mounting frame 100 is provided with a snap-fit ​​ring, and the upper rear surface of the decorative panel 200 is provided with a movable clamp 400 adapted to the snap-fit ​​ring 110. This allows the decorative panel 200 to be fixed in place when it is opened, preventing it from shaking during rescue operations.

[0050] In some embodiments, the movable caliper 400 includes a connecting seat 401, a first caliper 402, a second caliper 403, and a spring 404. The connecting seat 401 is fixedly connected to the decorative panel 200. The first caliper 402 is fixedly connected to the connecting seat 401. The second caliper 403 is slidably connected to the connecting seat 401. The front end of the first caliper 402 and the front end of the second caliper 403 both have a first notch. The middle part of the first caliper 402 and the middle part of the second caliper 403 both have a second notch. The spring 404 closes the first caliper 402 and the second caliper 403. The two first notches enclose an entry port that allows the locking ring 110 to pass through. The two second notches enclose an engagement port that accommodates the locking ring 110.

[0051] The locking ring 110 enters the engagement port through the inlet, and the engagement port prevents the locking ring 110 from disengaging. This makes the movable clamp 400 and the locking ring 110 simple in structure, reliable in operation, and repositionable.

[0052] In some optional embodiments, the connecting seat 401 is provided with a slot 405, the second claw 403 is slidably connected to the slot 405, and the spring 404 is disposed between the end of the slot 405 and the second claw 403, and pushes the second claw 403 toward the first claw 402, further making the movable caliper 400 simple in structure and easy to reset.

[0053] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A three-door firefighter elevator, comprising a car, a mounting frame (100), and a decorative panel (200), wherein the rear inner wall of the car is provided with a handrail (102), the rear wall of the mounting frame (100) is provided with a ventilation hole (101), the front upper surface of the decorative panel (200) is provided with an L-shaped piece, the front wall of the mounting frame (100) is provided with an opening adapted to the L-shaped piece for inserting the decorative panel (200), the rear side wall of the mounting frame (100) is provided with a sliding groove (103), the rear upper surface of the decorative panel (200) is provided with two fixed seats (201), a rotating shaft (202) is connected to the two fixed seats (201), the rotating shaft (202) passes through the sliding groove (103) and hinges the decorative panel (200) to the mounting frame (100), characterized in that: The mounting frame (100) has a first slide rail (104) extending forward and backward on the outer walls of its left and right sides. The first slide rail (104) is located between the sliding groove (103) and the top of the mounting frame (100). The decorative panel (200) has a second slide rail (105) installed on its left and right sides. A first slider (106) is slidably connected in the first slide rail (104), and a second slider (107) is slidably connected in the second slide rail (105). The first slider (106) and the second slider (107) are respectively connected to the two ends of the elastic body (300). The kinetic energy of the front end of the decorative panel (200) falling causes the elastic body (300) to deform and move the first slider (106) and the second slider (107) closer to the sliding groove (103). A high-temperature resistant filter cotton is connected to the ventilation hole (101).

2. The three-door firefighter elevator according to claim 1, characterized in that: When the decorative panel (200) is closed, the second slider (107) is located between the mounting frame (100) and the front inner wall of the car.

3. The three-door firefighter elevator according to claim 2, characterized in that: The second slide rail (105) is located on the upper surface of the decorative panel (200).

4. The three-door firefighter elevator according to claim 3, characterized in that: The elastic body (300) is either a cylindrical helical tension spring or a metal sheet spring.

5. The three-door firefighter elevator according to claim 1, characterized in that: An extension post (108) is connected to the first slider (106), and the end of the extension post (108) has a rotating part (109), and the elastic body (300) is connected to the rotating part (109).

6. The three-door firefighter elevator according to claim 1, characterized in that: A receiving groove is provided at the contact point between the decorative panel (200) and the mounting frame (100), and an adhesive strip (203) is fixedly connected to the receiving groove. The adhesive strip (203) has an opening to accommodate a portion of the mounting frame (100).

7. The three-door firefighter elevator according to claim 6, characterized in that: The opening of the adhesive strip (203) is interference-fitted with the mounting frame (100).

8. The three-door firefighter elevator according to claim 1, characterized in that: The rear wall of the mounting frame (100) is provided with a snap ring (110), and the upper rear surface of the decorative panel (200) is provided with a movable clamp (400) for engaging the snap ring (110).

9. The three-door firefighter elevator according to claim 8, characterized in that: The movable caliper (400) includes a connecting seat (401), a first caliper (402), a second caliper (403), and a spring (404). The connecting seat (401) is fixedly connected to the decorative panel (200). The first caliper (402) is fixedly connected to the connecting seat (401). The second caliper (403) is slidably connected to the connecting seat (401). The front end of the first caliper (402) and the front end of the second caliper (403) both have a first notch. The middle part of the first caliper (402) and the middle part of the second caliper (403) both have a second notch. The spring (404) clamps the first caliper (402) and the second caliper (403). The two first notches enclose an entry port that allows the snap ring (110) to pass through. The two second notches enclose an engagement port that accommodates the snap ring (110).

10. The three-door firefighter elevator according to claim 9, characterized in that: The connecting seat (401) is provided with a slot (405), the second claw (403) is slidably connected to the slot (405), and the spring (404) is located between the end of the slot (405) and the second claw (403) to push the second claw (403) towards the first claw (402).

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