Novel platform safety protection device

Abstract

The utility model discloses a novel platform safety protection device which comprises a safety touch panel, an elastic piece, a tension spring and a sensing switch. The safety touch plate is a clamping groove plate with three faces enclosed, sliding pieces are symmetrically installed at the two ends of the safety touch plate, the upper ends of the sliding pieces are connected with the lower ends of tension springs through tension spring lower installation bases, the upper ends of the tension springs are installed on tension spring upper installation bases, the tension spring upper installation bases are fixedly installed on the longitudinal beams, and elastic pieces are installed between the two sides of the front end of the safety touch plate and the platform. And sensing switches are mounted at four corners of the safety touch panel. The safety protection device is of a three-side integrated structure, completely surrounds a platform and a well wall risk area, achieves absolute protection, is sensitive in structure action, stable in safety touch panel fixation and capable of moving up and down through the compression elastic pieces and the tension springs. The travel sensing switches are mounted at the front and rear ends of the device to ensure that the travel switches can be triggered at any position risk, and the control system stops the elevator immediately to avoid danger.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevators, and in particular relates to a novel platform safety protection device. Background Art

[0002] At present, the core problem faced by platform elevators is safety protection, among which the safety protection of the platform is particularly important. However, the existing platform safety protection system generally exposes significant defects such as slow response, easy jamming and easy false triggering in application.

[0003] In the current market, the safety protection solutions for platform elevators are mainly divided into the following two categories:

[0004] First, the traditional passenger elevator light curtain is used as a platform safety protection device. Although this protection device has excellent sensitivity, it is very easy to be falsely triggered, that is, once a passenger approaches the edge of the platform, it will trigger an action, seriously interfering with the passenger's elevator experience.

[0005] Second, a circle of safety touch switches made of soft materials is added to the edge of the platform. Although this solution can effectively avoid the problem of false triggering, its protection range is not comprehensive. It can only monitor and protect potential danger sources directly above the edge of the platform. Once a dangerous situation occurs where an object is stuck in the gap between the platform and the shaft, this solution will not be able to effectively sense and respond accordingly.

[0006] In order to ensure the absolute safety of passengers on the platform elevator, we have invented a new platform safety protection device. This device can ensure that once an object falls into the gap of the platform or a person's body is stuck in the gap, it can sensitively sense and instantly stop the elevator to ensure the absolute safety of passengers on the platform. Summary of the invention

[0007] The purpose of the utility model is to provide a new platform safety protection device to solve the problems raised in the above background technology.

[0008] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new platform safety protection device, including a safety touch plate, a spring, a tension spring and a sensing switch;

[0009] The safety touch plate is a card slot plate surrounded on three sides, and slides are symmetrically installed at both ends of the safety touch plate. The upper end of the slide is connected to the lower end of the tension spring through the lower mounting seat of the tension spring, and the upper end of the tension spring is installed on the upper mounting seat of the tension spring, and the upper mounting seat of the tension spring is fixedly installed on the longitudinal beam. Shrapnel is installed between the two sides of the front end of the safety touch plate and the platform, and sensing switches are installed at the four corners of the safety touch plate.

[0010] Preferably, the sliding plate is a U-shaped sliding plate composed of a side sliding plate and an upper limit plate and a lower limit plate arranged at the upper and lower ends of the side sliding plate.

[0011] Preferably, the spring sheet is inserted into the inner groove of the platform, one end of which is fixed to the safety touch plate, and the other end of which is in contact with the inner wall of the safety touch plate via a set screw.

[0012] Preferably, it also includes a limiting slide, which is formed by connecting a left plate, a card plate and a right plate in sequence. If the height of the left plate / card plate / right plate is H1, the height of the upper limit plate / lower limit plate is H2, and the safety stroke of the safety touch plate is S, then H1<H2, and H1-H2=S.

[0013] Preferably, if the width of the left side plate / right side plate is W1, the width of the side sliding sheet is W2, and the width of the card plate is W3, then W2+W3<W1.

[0014] Technical effects and advantages of the utility model:

[0015] 1. This protective device is a three-sided integrated structure, which completely surrounds the three sides of the platform and the shaft wall where risks may occur, playing an absolute protective role.

[0016] 2. This structure is sensitive and will not move sideways. The front ends of the safety touch plate are fixed to the platform by springs, and the rear side is fixed to the vertical beam by tension springs. This fixing method ensures that the safety touch plate is firmly fixed to the edge of the platform, and can be moved up and down within a certain range by compressing the springs and tension springs. When a danger occurs, the springs / tension springs will be compressed, thereby causing the safety touch plate to compress the travel switch. When the risk is eliminated, the springs and tension springs will reset the safety touch plate, thereby contacting the compression of the travel sensing switch, and the system can operate normally again after receiving the risk elimination signal.

[0017] 3. The spring sheet on the front side of the safety touch plate is inserted into the platform and pressed with a set screw, so that there is only elastic force in the up and down direction and no displacement in other directions. The safety touch plate is fixed with bolts and spring sheets, so that the front side of the safety touch plate can only move up and down and will not move left and right or forward and backward, ensuring the stability of the position of the safety touch plate, and will not scratch the platform, nor will it become a source of danger and scratch the shaft wall. At the same time, because the spring sheet is inserted into the inner groove of the platform, the front side of the safety touch plate can only move up and down to a limited extent and will not fall off or flip up.

[0018] 4. This protective device is equipped with travel sensing switches at both ends of the front and rear sides. Since the safety touch panels are made of rigid materials, the travel switches can be triggered no matter where risks occur. The control system then receives the signal to stop the elevator immediately to avoid danger.

[0019] 5. The rear side of the safety touch plate is inserted into the slide slot, so that the rear side safety touch plate can only move up and down in the slide slot, so that the rear side of the safety touch plate will not move left and right. Due to the fixation of the front spring sheet, it is impossible to move forward and backward in the front and back directions. This fixing method ensures that the front, back, left and right positions of the safety touch plate are fixed, and due to the special structure of the slide slot and the rear side of the safety touch plate, the up and down travel of the safety touch plate is fixed, and there is no risk of falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the assembly drawing of the utility model;

[0021] Figure 2 It is an assembly exploded view of the utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the safety touch panel;

[0023] Figure 4 It is a structural schematic diagram of a limiting slide plate;

[0024] Figure 5 It is a schematic diagram of the connection between the limiting slide plate and the sliding piece;

[0025] Figure 6 It is a schematic diagram of the structure of the shrapnel.

[0026] In the figure: safety touch plate-1, spring-2, tension spring-3, limit slide plate-4, left plate-41, card plate-42, right plate-43, slide plate-5, slide plate-51, upper limit plate-52, lower limit plate-53, tension spring lower mounting seat-61, tension spring upper mounting seat-62, sensing switch-7, longitudinal beam-8, platform-9. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1-Figure 6 A specific implementation of a novel platform safety protection device of the utility model is shown: comprising a safety touch plate 1, a spring 2, a tension spring 3 and a sensing switch 7;

[0029] The safety touch plate 1 is a card slot plate surrounded on three sides, and slides 5 are symmetrically installed at both ends of the safety touch plate 1. The lower end of the tension spring 3 is connected to the upper end of the slide 5 through the tension spring lower mounting seat 61, and the upper end of the tension spring 3 is installed on the tension spring upper mounting seat 62, and the tension spring upper mounting seat 62 is fixedly installed on the longitudinal beam 8. Shrapnel 2 is installed between the two sides of the front end of the safety touch plate 1 and the platform 9, and sensing switches 7 are installed at the four corners of the safety touch plate 1.

[0030] Furthermore, the sliding plate 5 is a U-shaped sliding plate composed of a side sliding plate 51 and an upper limit plate 52 and a lower limit plate 53 provided at the upper and lower ends of the side sliding plate 51 .

[0031] Furthermore, the spring sheet 2 is inserted into the inner groove of the platform, one end of which is fixed to the safety touch plate 1, and the other end of which is in contact with the inner wall of the safety touch plate 1 through a set screw.

[0032] Furthermore, it also includes a limit slide plate 4, which is composed of a left side plate 41, a card plate 42 and a right side plate 43 connected in sequence. If the height of the left side plate 41 / card plate 42 / right side plate 43 is H1, the height of the upper limit plate 52 / lower limit plate 53 is H2, and the safety stroke of the safety touch plate 1 is S, then H1<H2, and H1-H2=S.

[0033] Furthermore, if the width of the left side plate 41 / the right side plate 42 is W1, the width of the side sliding piece 51 is W2, and the width of the clamping plate 42 is W3, then W2+W3<W1.

[0034] The platform is running in the shaft, and there is a background board at the back to block people and objects from coming into contact with the shaft wall at the back. Therefore, the back is a risk-free area. Except for the back, the other three sides can directly contact the shaft wall. Therefore, safety protection is required on all three sides to prevent people or objects from being pinched by the gap between the platform and the shaft wall during the operation of the platform. When the platform is running in the shaft, once an object falls to the edge of the platform, it will inevitably press the safety touch plate, and the safety touch plate will trigger the travel switch, and then the control system will instantly feedback to stop running, avoiding the risk of pinching people or objects during the operation of the platform; when the fallen object is removed, the safety touch plate is reset by the force of the spring and the tension spring, and after the travel switch is reset, the platform resumes normal operation.

[0035] The applicant further declares that the present invention illustrates the implementation method and device structure of the present invention through the above embodiments, but the present invention is not limited to the above embodiments, that is, it does not mean that the present invention must rely on the above methods and structures to be implemented. Those skilled in the art should understand that any improvement to the present invention, equivalent replacement of the implementation method selected by the present invention, addition of steps, selection of specific methods, etc., all fall within the scope of protection and disclosure of the present invention.

[0036] The present invention is not limited to the above-mentioned embodiments, and all methods that use structures and methods similar to the present invention to achieve the purpose of the present invention are within the protection scope of the present invention.

Claims

1. A new platform safety protection device, characterized by: It comprises a safety touch plate (1), a spring (2), a tension spring (3) and a sensing switch (7); The safety touch plate (1) is a card slot plate surrounded on three sides, and slides (5) are symmetrically installed at the two ends of the safety touch plate (1), and the upper end of the slide (5) is connected to the lower end of the tension spring (3) through the tension spring lower mounting seat (61), and the upper end of the tension spring (3) is installed on the tension spring upper mounting seat (62), and the tension spring upper mounting seat (62) is fixedly installed on the longitudinal beam (8). Shrapnel (2) is installed between the two sides of the front end of the safety touch plate (1) and the platform (9), and sensing switches (7) are installed at the four corners of the safety touch plate (1).

2. A new platform safety protection device according to claim 1, characterized in that: The sliding plate (5) is a U-shaped sliding plate composed of a side sliding plate (51) and an upper limit plate (52) and a lower limit plate (53) arranged at the upper and lower ends of the side sliding plate (51).

3. A new platform safety protection device according to claim 1, characterized in that: The spring sheet (2) is inserted into the inner groove of the platform, one end of which is fixed to the safety touch plate (1), and the other end of which is in contact with the inner wall of the safety touch plate (1) via a set screw.

4. A new platform safety protection device according to claim 2, characterized in that: The invention also comprises a limit slide plate (4), wherein the limit slide plate (4) is formed by sequentially connecting a left side plate (41), a clamping plate (42) and a right side plate (43); if the height of the left side plate (41) / the clamping plate (42) / the right side plate (43) is H1, the height of the upper limit plate (52) / the lower limit plate (53) is H2, and the safety stroke of the safety touch plate (1) is S, then H1<H2, and H1-H2=S.

5. A new platform safety protection device according to claim 4, characterized in that: If the width of the left side plate (41) / right side plate (43) is W1, the width of the side sliding sheet (51) is W2, and the width of the card plate (42) is W3, then W2+W3<W1.

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