Safety protection device and hanging basket device

Abstract

The utility model discloses a safety protection device and a hanging basket device.The safety protection device comprises an obstacle detection unit and a switch unit, the obstacle detection unit is arranged on the hanging basket device of an industrial furnace, and the obstacle detection unit is used for detecting whether an obstacle exists within a preset distance in the ascending direction of the hanging basket device or not; and when the obstacle detection unit detects that an obstacle exists in the upward direction of the hanging basket device, a first control signal is output. The switch unit is arranged between the driving end of the hanging basket device and the rising signal end of the hanging basket device, the rising signal end is used for outputting a rising driving signal to the driving end, the output end of the obstacle detection unit is electrically connected with the control end of the switch unit, and the switch unit is used for being disconnected under the condition that a first control signal is received.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of basket devices in industrial furnaces, in particular to a safety protection device and a basket device. BACKGROUND

[0002] When performing furnace maintenance work, a basket device needs to be used. The basket device needs to be raised to a certain height when in use. Due to the complex environment at a high place in the furnace, for example, a burner is arranged in the furnace, collision may occur during the raising process of the basket device, and the safety is not high. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to provide a safety protection device and a basket device, which can solve the problem of low safety of the traditional basket device.

[0004] In a first aspect, an embodiment of the present application provides a safety protection device, comprising:

[0005] An obstacle detection unit is arranged on a basket device of an industrial furnace. The obstacle detection unit is used to detect whether there is an obstacle within a preset distance in the upward direction of the basket device, and output a first control signal when the obstacle detection unit detects that there is an obstacle in the upward direction of the basket device.

[0006] A switch unit is arranged between a driving end of the basket device and a rising signal end of the basket device. The rising signal end is used to output a rising driving signal to the driving end. An output end of the obstacle detection unit is electrically connected to a control end of the switch unit, and the switch unit is used to be disconnected when the first control signal is received.

[0007] According to some embodiments of the present application, the obstacle detection unit comprises:

[0008] A first wireless ranging sub-unit, and an output end of the first wireless ranging sub-unit is electrically connected to the control end of the switch unit.

[0009] According to some embodiments of the present application, the first wireless ranging sub-unit comprises:

[0010] A photoelectric ranging sensor, and an output end of the photoelectric ranging sensor is electrically connected to the control end of the switch unit.

[0011] According to some embodiments of the present application, the first wireless ranging sub-unit comprises:

[0012] A laser ranging sensor, and an output end of the laser ranging sensor is electrically connected to the control end of the switch unit.

[0013] According to some embodiments of the present application, the obstacle detection unit further comprises:

[0014] a second wireless ranging subunit, an output end of the second wireless ranging subunit being electrically connected to a control end of the switch unit.

[0015] According to some embodiments of the present application, the first wireless ranging subunit and the second wireless ranging subunit are respectively arranged at two sides of the top of the basket device.

[0016] According to some embodiments of the present application, the obstacle detection unit further comprises:

[0017] an obstruction detection subunit arranged at the top of the basket device, the obstruction detection subunit being configured to detect whether there is an obstacle between the two sides of the top of the basket device, and an output end of the obstruction detection subunit being electrically connected to a control end of the switch unit.

[0018] According to some embodiments of the present application, the obstruction detection subunit comprises:

[0019] a safety grating, a transmitter of the safety grating and a receiver of the safety grating being respectively arranged at two sides of the top of the basket device, and an output end of the receiver being electrically connected to a control end of the switch unit.

[0020] According to some embodiments of the present application, the switch unit comprises:

[0021] a first switch subunit, a first end of the first switch subunit being electrically connected to a power supply end, and an output end of the first wireless ranging subunit being electrically connected to a control end of the first switch subunit;

[0022] a second switch subunit, a first end of the second switch subunit being electrically connected to a second end of the first switch subunit, and an output end of the second wireless ranging subunit being electrically connected to a control end of the second switch subunit;

[0023] a third switch subunit, a first end of the third switch subunit being electrically connected to a second end of the second switch subunit, and an output end of the obstruction detection subunit being electrically connected to a control end of the third switch subunit;

[0024] a fourth switch subunit arranged between the driving end and the rising signal end, and a second end of the third switch subunit being electrically connected to a control end of the fourth switch subunit.

[0025] In a second aspect, embodiments of the present application provide a basket device applied to an industrial furnace, the device comprising the safety protection device as described above.

[0026] In the embodiment of the present application, the obstacle detection unit detects the obstacle within the preset distance in the upward direction of the basket device. When the obstacle detection unit detects the obstacle within the preset distance in the upward direction of the basket device, the first control signal is output to control the switch unit to be disconnected, and the driving end cannot receive the rising driving signal, so that the rising is stopped, the obstacle is avoided to be touched, and the safety is improved.

[0027] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0028] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0029] Figure 1 The schematic diagram of the embodiment of the basket device provided by the present application is shown;

[0030] Figure 2 The schematic diagram of the first wireless ranging subunit in the embodiment of the safety protection device provided by the present application is shown;

[0031] Figure 3 The schematic diagram of the second wireless ranging subunit in the embodiment of the safety protection device provided by the present application is shown;

[0032] Figure 4 The schematic diagram of the safety grating in the embodiment of the safety protection device provided by the present application is shown;

[0033] Figure 5 The schematic diagram of the switch unit in the embodiment of the safety protection device provided by the present application is shown.

[0034] LIST OF REFERENCE NUMERALS

[0035] The basket device 100, the first wireless ranging subunit 200, the second wireless ranging subunit 300, the transmitter 400, and the receiver 500. DETAILED DESCRIPTION

[0036] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0037] In the description of this application, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0038] In the description of this application, "multiple" refers to two or more. The use of "first" and "second" is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or the order in which the technical features are indicated.

[0039] In the description of this application, unless otherwise expressly defined, terms such as "setting," "installation," and "electrical connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0040] The following reference Figures 1 to 4 This application describes a safety protection device and a suspended platform device 100 according to an embodiment of the present application.

[0041] This application provides a safety protection device, including:

[0042] An obstacle detection unit is installed on the suspended basket device 100 inside the industrial furnace. The obstacle detection unit is used to detect whether there are obstacles within a preset distance in the upward direction of the suspended basket device 100.

[0043] A switching unit is disposed between the drive end and the lifting signal end of the suspended platform device 100. The lifting signal end is used to output a lifting drive signal to the drive end. The output end of the obstacle detection unit is electrically connected to the control end of the switching unit.

[0044] When the obstacle detection unit detects an obstacle in the upward direction of the suspended platform 100, it outputs a first control signal to control the switch unit to disconnect.

[0045] In this embodiment, an obstacle is detected by the obstacle detection unit within a preset distance in the upward direction of the suspended platform 100. When the obstacle detection unit detects an obstacle within the preset distance in the upward direction of the suspended platform 100, a first control signal is output to control the switch unit to disconnect. The drive end does not receive the upward drive signal and stops rising, thus avoiding contact with the obstacle and improving safety.

[0046] In some embodiments of this application, the preset distance can be set according to the application scenario, such as 2m, 1m, 0.5m, etc.

[0047] In some embodiments of the present application, the switch unit can adopt a MOS tube, a switching triode or other switching devices.

[0048] In some embodiments of the present application, as shown in Figure 1 The obstacle detection unit comprises:

[0049] The first wireless ranging subunit 200 has an output end electrically connected to the control end of the switch unit.

[0050] In the present embodiment, the detection direction of the first wireless ranging subunit 200 is the upward direction of the basket device 100. The detection distance of the first wireless ranging subunit 200 is set as a preset distance. When the first wireless ranging subunit 200 detects an obstacle within the preset distance, the first wireless ranging subunit 200 can measure the distance to the obstacle, and then output a low-level signal to the control end of the switch unit, so as to control the switch unit to be disconnected. When the first wireless ranging subunit 200 does not detect an obstacle within the preset distance, the first wireless ranging subunit 200 outputs a high-level signal to the control end of the switch unit, so as to control the switch unit to be connected.

[0051] If the obstacle detection unit adopts a limit switch to limit the upward process, the installation position of the limit switch is limited. Moreover, since the basket device 100 may collide during the upward process, the limit switch is generally composed of a metal elastic part. The limit switch is prone to mechanical fatigue damage due to poor construction environment and long-term use, and is not suitable for high-speed motion. Therefore, the limit switch cannot be applied to the complex environment in the furnace, has low fault tolerance, and is prone to collision accidents of the basket device 100. The obstacle measurement by the first wireless ranging subunit 200 does not have the above problems of the limit switch.

[0052] In some embodiments of the present application, the first wireless ranging subunit 200 can adopt an optoelectronic ranging sensor or a laser ranging sensor, and the output end of the optoelectronic ranging sensor or the laser ranging sensor is electrically connected to the control end of the switch unit. By selecting different models of the optoelectronic ranging sensor or the laser ranging sensor, the detection distance of the optoelectronic ranging sensor or the laser ranging sensor can be changed, i.e., the preset distance can be changed.

[0053] In some embodiments of the present application, as shown in Figure 1 The obstacle detection unit further comprises:

[0054] The second wireless ranging subunit 300 has an output end electrically connected to the control end of the switch unit.

[0055] In the present embodiment, by arranging the second wireless ranging subunit 300, the detection range can be expanded, and the accuracy of detecting obstacles can be improved.

[0056] In some embodiments of this application, the first wireless ranging subunit 200 and the second wireless ranging subunit 300 are respectively disposed on both sides of the top of the suspended basket device 100.

[0057] In this embodiment, by setting the first wireless ranging subunit 200 and the second wireless ranging subunit 300 on the two sides of the top of the suspended basket device 100, it is possible to detect whether there are obstacles above the two sides of the suspended basket device 100, and the obstacle judgment result is accurate.

[0058] In some embodiments of this application, the obstacle detection unit further includes:

[0059] An obstruction detection subunit is installed on the top of the suspended platform device 100. The obstruction detection subunit is used to detect whether there is an obstacle between the two sides of the top of the suspended platform device 100. The output of the obstruction detection subunit is electrically connected to the control terminal of the switch unit.

[0060] In this embodiment, the obstruction detection subunit detects whether there is an obstacle between the two sides of the top of the suspended platform device 100. If there is an obstacle, the output terminal of the obstruction detection subunit electrically outputs a second control signal to the control terminal of the switch unit, controls the switch unit to open, and the drive terminal does not receive the rising drive signal, so the suspended platform device 100 stops rising.

[0061] In some embodiments of this application, the occlusion detection subunit may employ a through-beam photoelectric sensor.

[0062] In some embodiments of this application, the occlusion detection subunit includes:

[0063] Safety light curtains, such as Figure 1 As shown, the transmitter 400 and receiver 500 of the safety light curtain are respectively installed on both sides of the top of the suspended platform device 100, and the output terminal of the receiver 500 is electrically connected to the control terminal of the switch unit.

[0064] In this embodiment, a safety light curtain is used to detect whether there is an obstacle between the two sides of the top of the suspended platform 100. If there is an obstacle between the two sides of the top of the suspended platform 100, the output terminal of the receiver 500 outputs a low-level signal to the control terminal of the switching unit, and the switching unit is opened. If there is no obstacle between the two sides of the top of the suspended platform 100, the output terminal of the receiver 500 outputs a high-level signal to the control terminal of the switching unit, and the switching unit is closed.

[0065] In some embodiments of this application, the switching unit includes:

[0066] The first switch subunit has its first terminal electrically connected to the power supply terminal, and the output terminal of the first wireless ranging subunit 200 is electrically connected to the control terminal of the first switch subunit.

[0067] a second switch subunit, a first end of the second switch subunit being electrically connected to a second end of the first switch subunit, and an output end of the second wireless ranging subunit 300 being electrically connected to a control end of the second switch subunit;

[0068] a third switch subunit, a first end of the third switch subunit being electrically connected to a second end of the second switch subunit, and an output end of the obstruction detection subunit being electrically connected to a control end of the third switch subunit;

[0069] a fourth switch subunit, the fourth switch subunit being arranged between the driving end and the rising signal end, and a second end of the third switch subunit being electrically connected to a control end of the fourth switch subunit.

[0070] In the embodiment, the first wireless ranging subunit 200 outputs a low-level signal to control the switch subunit to be disconnected in the case of detecting an obstacle. The second wireless ranging subunit 300 outputs a low-level signal to control the second switch subunit to be disconnected in the case of detecting an obstacle. The obstruction detection subunit outputs a low-level signal to control the third switch subunit to be disconnected in the case of detecting an obstacle between the two sides on the top of the basket device 100. When any one of the first switch subunit, the second switch subunit, and the third switch subunit is disconnected, the control end of the fourth switch subunit is powered off, the fourth switch subunit is disconnected, and the driving end cannot receive the rising driving signal sent by the rising signal end, so that the basket device 100 stops rising.

[0071] In some embodiments of the present application, as shown in Figure 5 the first switch subunit includes a first relay KA7, as shown in Figure 2 an output end of the first wireless ranging subunit 200 is electrically connected to a coil of the first relay KA7;

[0072] the second switch subunit includes a second relay KA8, as shown in Figure 3 an output end of the second wireless ranging subunit 300 is electrically connected to a coil of the second relay KA8;

[0073] the third switch subunit includes a third relay KA9, as shown in Figure 4 an output end of the obstruction detection subunit is electrically connected to a coil of the third relay KA9.

[0074] The fourth switch subunit comprises a fourth relay KA6, a fifth relay KA2 and a sixth relay KA3, the normally closed contact of the first relay KA7, the normally closed contact of the second relay KA8 and the normally closed contact of the third relay KA9 are sequentially connected between the power supply end and the coil of the fourth relay KA6, the driving end comprises a left driving end and a right driving end, the rising signal end comprises a left rising signal end and a right rising signal end, the normally open contact of the fifth relay KA2 is arranged between the power supply end and the left driving end, the normally open contact of the sixth relay KA3 is arranged between the power supply end and the right driving end, the first normally open contact of the fourth relay KA6 is arranged between the left rising signal end and the coil of the fifth relay KA2, and the second normally open contact of the fourth relay KA6 is arranged between the right rising signal end and the coil of the sixth relay KA3.

[0075] In the embodiment, the first wireless ranging subunit 200 outputs a low-level signal to control the first relay KA7 to be disconnected when detecting an obstacle. The second wireless ranging subunit 300 outputs a low-level signal to control the second relay KA8 to be disconnected when detecting an obstacle. The shielding detection subunit outputs a low-level signal to control the third relay KA9 to be disconnected when detecting that there is an obstacle shielding between the two sides of the top of the basket device 100. When any one of the first relay KA7, the second relay KA8 and the third relay KA9 is disconnected, the coil of the fourth relay KA6 is powered off, the first normally open contact and the second normally open contact of the fourth relay KA6 are disconnected, the coils of the fifth relay KA2 and the sixth relay KA3 are powered off, and the normally open contacts of the fifth relay KA2 and the sixth relay KA3 are disconnected, so that the basket device 100 stops rising.

[0076] In addition, the embodiment of the present application also provides a basket device 100 applied to an industrial furnace, and the device comprises the safety protection device as described above.

[0077] The basket device 100 provided by the embodiment of the present application can realize the processes realized by the safety protection device and achieve the same beneficial effects. To avoid repetition, details are not described here.

[0078] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the present application.

Claims

1. A safety protection device, characterized in that, include: An obstacle detection unit is installed on the hanging basket device of the industrial furnace. The obstacle detection unit is used to detect whether there is an obstacle within a preset distance in the upward direction of the hanging basket device, and outputs a first control signal when the obstacle detection unit detects that there is an obstacle in the upward direction of the hanging basket device. A switching unit is disposed between the drive end of the suspended platform and the lifting signal end of the suspended platform. The lifting signal end is used to output a lifting drive signal to the drive end. The output end of the obstacle detection unit is electrically connected to the control end of the switching unit, and the switching unit is used to disconnect when the first control signal is received.

2. The safety protection device according to claim 1, characterized in that, The obstacle detection unit includes: The first wireless ranging subunit has its output terminal electrically connected to the control terminal of the switching unit.

3. The safety protection device according to claim 2, characterized in that, The first wireless ranging subunit includes: An optical-electric ranging sensor, the output of which is electrically connected to the control terminal of the switching unit.

4. The safety protection device according to claim 2, characterized in that, The first wireless ranging subunit includes: A laser rangefinder sensor, the output of which is electrically connected to the control terminal of the switching unit.

5. The safety protection device according to claim 2, characterized in that, The obstacle detection unit also includes: The second wireless ranging subunit has its output terminal electrically connected to the control terminal of the switching unit.

6. The safety protection device according to claim 5, characterized in that: The first wireless ranging subunit and the second wireless ranging subunit are respectively located on both sides of the top of the suspended basket device.

7. The safety protection device according to claim 5, characterized in that, The obstacle detection unit also includes: An obstruction detection subunit is provided, which is located on the top of the suspended platform device. The obstruction detection subunit is used to detect whether there is an obstacle obstructing the space between the two sides of the top of the suspended platform device. The output terminal of the obstruction detection subunit is electrically connected to the control terminal of the switching unit.

8. The safety protection device according to claim 7, characterized in that, The occlusion detection subunit includes: A safety light curtain, wherein the transmitter and receiver of the safety light curtain are respectively disposed on both sides of the top of the suspended platform device, and the output terminal of the receiver is electrically connected to the control terminal of the switching unit.

9. The safety protection device according to claim 7, characterized in that, The switching unit includes: The first switch subunit has its first terminal electrically connected to the power supply terminal, and its output terminal electrically connected to the control terminal. The second switch subunit has its first terminal electrically connected to the second terminal of the first switch subunit, and its output terminal electrically connected to the control terminal of the second switch subunit. The third switch subunit has its first terminal electrically connected to the second terminal of the second switch subunit, and the output terminal of the occlusion detection subunit is electrically connected to the control terminal of the third switch subunit. The fourth switch subunit is disposed between the driving end and the rising signal end, and the second end of the third switch subunit is electrically connected to the control end of the fourth switch subunit.

10. A suspended platform device, characterized in that, Applied to industrial furnaces, the device includes the safety protection device as described in any one of claims 1 to 9.

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