Elevator car door closing pressure detection device

Abstract

The utility model discloses an elevator car door closing pressure detection device, belongs to the technical field of detection equipment, and provides the elevator car door closing pressure detection device which is convenient to position and higher in operation safety, the elevator car door closing pressure detection device comprises a trolley and two detection ends, the trolley is provided with a configuration table, and the upper surface and the lower surface of the configuration table are fixedly connected with main guide rods; each main guide rod is sleeved with a sliding piece, the end of each main guide rod is fixedly connected with a limiting ring, the main guide rod is sleeved with a spring located between the limiting ring and the sliding piece, each detection end is movably connected with the two sliding pieces through a movable connecting rod, and a pressure sensor is arranged in each detection end. The guide rod, the spring, the sliding part and the movable connecting rod are designed, so that the two detection ends can be kept in a positioning state by utilizing pre-pressure when the elevator car door is opened, the positioning operation is more convenient, and the pressure sensor can obtain detection data with higher precision; and the operator is far away from the car door when the elevator car door is closed, so that the safety coefficient is higher.

Description

Technical Field

[0001] This application relates to the field of testing equipment technology, and in particular to an elevator car door closing pressure testing device. Background Technology

[0002] To test the safety factor of elevators, it is usually necessary to test the closing pressure of the elevator car doors before they leave the factory. Existing testing devices can be designed to be relatively small, and the operator can hold them between the elevator car doors to perform the test. However, during the test, the anti-pinch system of the elevator car doors is closed, and the elevator car doors will not open on their own due to the closing resistance. For safety reasons, the operator's confidence in operating the device is relatively low. Using auxiliary clamping tools can improve safety, but the testing end of the testing device is not easy to align with the elevator car door. Summary of the Invention

[0003] The purpose of this application is to provide an elevator car door closing pressure detection device that is easy to locate and has higher operational safety.

[0004] To achieve the above objectives, this application provides an elevator car door closing pressure detection device: comprising a trolley and two detection ends. The trolley is equipped with a mounting platform, and a main guide rod is fixedly connected to both the upper and lower surfaces of the mounting platform. A sliding component is fitted over each main guide rod, and a limit ring is fixedly connected to the end of each main guide rod. A spring is fitted over the main guide rod between the limit ring and the sliding component. The two detection ends are symmetrical about the mounting platform, and each detection end is movably connected to the two sliding components via a movable connecting rod. A pressure sensor is installed inside each detection end. A microcomputer is also installed on the mounting platform for recording, processing, and analyzing the data detected by the pressure sensor.

[0005] As a preferred embodiment, the detection end includes a horizontal plate with a hinge plate at the center of its side. The main body of the sliding component is a sliding sleeve, and each sliding sleeve has a pair of longitudinal cantilever arms symmetrical about an axis on its outer side. The movable connecting rod is divided into an upper inclined rod and a lower inclined rod. The upper end of the upper inclined rod is rotatably connected to the longitudinal cantilever arm of the upper sliding component, and the lower end of the upper inclined rod is rotatably connected to the hinge plate. The lower end of the lower inclined rod is rotatably connected to the longitudinal cantilever arm of the lower sliding component, and the upper end of the lower inclined rod is rotatably connected to the hinge plate. The detection end achieves pre-pressurization positioning with the elevator car door through the movable connecting rod.

[0006] As a preferred embodiment, the pressure sensor is fixed on the other side of the cross plate, and the probe of the pressure sensor is connected to a pressure plate, which directly contacts the elevator car door, reducing the wear of the pressure sensor probe.

[0007] As a preferred embodiment, the two ends of the cross plate have extension arms, and the two extension arms have grooves on opposite sides. The two ends of the pressure plate cooperate with the two grooves to form a sliding pair, so that the pressure plate 706 has good sliding stability within a certain range, which can effectively improve the detection accuracy of the pressure sensor.

[0008] As a preferred embodiment, the upper and lower surfaces of the configuration platform also have secondary guide rods, which are parallel to the main guide rod. The outer side of the sliding sleeve has a transverse cantilever, which has a guide hole for the secondary guide rod to pass through to form a sliding pair, thereby suppressing the rotation of the sliding member relative to the main guide rod and improving the smoothness of the sliding member when moving up and down.

[0009] As a preferred embodiment, the trolley includes a transport platform, which is connected to the configuration platform via a support column. A guide frame is fixedly connected to the transport platform, and the lower end of the support column is adapted to slide along the guide frame, so that the configuration platform and its connected components can be positioned on the transport platform.

[0010] As a preferred embodiment, the support column includes a column body fixedly connected to the configuration platform, and a sliding plate is fixedly connected to the lower end of the column body. The guide frame includes a parallel front baffle and a rear baffle, and a pair of constraint plates are fixedly connected between the front baffle and the rear baffle. The sliding plate is located between the transport platform and the constraint plates to form a sliding pair. The sliding plate is kept stable relative to the constraint plates by the constraint members, ensuring that the detection shaft has good stability when it is in working condition or during transfer.

[0011] As a preferred embodiment, a rib is fixedly connected between the upper surface of the slide plate and the outer side of the column. The slide plate is also provided with a pin hole. The constraint plate is provided with a positioning groove that runs through the upper and lower surfaces. The constraint member includes a pin shaft, which is adapted to pass through the positioning groove and be inserted into the pin hole. The upper end of the pin shaft has a handle for easy removal and placement of the constraint member.

[0012] As a preferred embodiment, a reinforcing plate is fixedly connected to the lower surface of the transport platform, rollers are provided at the four corners of the lower surface of the transport platform, and handrails are also provided on the transport platform to facilitate the operator to apply pushing and pulling force to the trolley.

[0013] Compared with the prior art, the beneficial effects of this application are as follows:

[0014] (1) By designing a guide rod, spring, sliding component and movable linkage structure, the two detection ends can be kept in a positioning state by using pre-pressure when the elevator car door is open, making the positioning operation more convenient and helping the pressure sensor to obtain high-precision detection data; and the operator is away from the car door when the elevator car door is closed, which is safer and gives the operator more confidence.

[0015] (2) By setting a sliding and locking trolley under the configuration platform, the transfer process of the detection device is made easier. Moving the configuration platform forward to the front limit position allows the detection end to be closer to the elevator car door. Moving the configuration platform backward to the rear limit position allows the center of gravity of the entire device to fall on the transport platform. The transfer process is less likely to tip over and is safer. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the elevator car door closing pressure detection device.

[0017] Figure 2 This is a three-dimensional structural diagram of the main functional parts of the elevator car door closing pressure detection device.

[0018] Figure 3 A three-dimensional structural diagram of the guide frame for the elevator car door closing pressure detection device.

[0019] Figure 4 This is a three-dimensional structural diagram of the constraint component of the elevator car door closing pressure detection device.

[0020] Figure 5 This is a three-dimensional structural diagram of the sliding component of the elevator car door closing pressure detection device.

[0021] Figure 6 This is a three-dimensional structural diagram of the detection end of the elevator car door closing pressure detection device.

[0022] Figure 7 A three-dimensional structural diagram of the trolley 1 for the elevator car door closing pressure detection device.

[0023] In the diagram: 1. Trolley; 101. Transport platform; 102. Reinforcing plate; 103. Handrail; 104. Roller; 2. Guide frame; 201. Front baffle; 202. Rear baffle; 203. Constraint plate; 204. Positioning groove; 3. Constraint component; 301. Pin; 302. Handle; 4. Support column; 401. Slide plate; 402. Pin hole; 403. Column; 404. Rib; 5. Configuration platform; 501. Main guide rod 502, Limiting ring; 503, Spring; 504, Secondary guide rod; 6, Sliding component; 601, Sliding sleeve; 602, Longitudinal cantilever; 603, Transverse cantilever; 604, Guide hole; 7, Detection end; 701, Hinge plate; 702, Horizontal plate; 703, Extension arm; 704, Slide groove; 705, Pressure sensor; 706, Pressure plate; 8, Microcomputer; 9, Movable connecting rod; 901, Upper inclined rod; 902, Lower inclined rod. Detailed Implementation

[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. They should not be construed as limiting the specific protection scope of this application.

[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0028] like Figure 1-7 The elevator car door closing pressure detection device shown includes a trolley 1 and two detection ends 7, which are symmetrically arranged on the trolley 1. A placement platform 5 is mounted on the trolley 1. The trolley 1 includes a transport platform 101, which is connected to the placement platform 5 via a support column 4. A guide frame 2 is fixedly connected to the transport platform 101. The lower end of the support column 4 can slide along the guide frame 2. The support column 4 includes a column body 403 fixedly connected to the placement platform 5. The column body 403 is vertically arranged, so that the placement platform 5 is a certain distance from the transport platform 101. A sliding mechanism is fixedly connected to the lower end of the column body 403. The guide frame 2 includes a front baffle 201 and a rear baffle 202, which are parallel to each other. A pair of constraint plates 203 are fixedly connected between the front baffle 201 and the rear baffle 202. The two constraint plates 203 are parallel to each other. The front baffle 201, the rear baffle 202 and the constraint plates 203 are all fixedly connected to the upper surface of the transport platform 101. The upper surface of the transport platform 101 is smooth. The sliding plate 401 is located between the transport platform 101 and the constraint plates 203 to form a sliding pair. Usually, lubricating oil is applied to the contact parts of the sliding plate 401 with the transport platform 101 and the two constraint plates 203 to reduce sliding friction.

[0029] A rib plate 404 is fixedly connected between the upper surface of the slide plate 401 and the outer side of the column 403, which can improve the connection stability between the column 403 and the slide plate 401. The slide plate 401 can also be kept stable relative to the constraint plate 203 by the constraint member 3. This requires the slide plate 401 to have a pin hole 402 below the constraint plate 203. The constraint plate 203 has a positioning groove 204 that runs through the upper and lower surfaces. The positioning groove 204 can be aligned with the pin hole 402. The specific structure of the constraint member 3 includes a pin shaft 301, which can pass through the positioning groove 204 and be inserted into the pin hole 402, thereby restricting the sliding of the slide plate 401 relative to the constraint plate 203, and thus keeping the support column 4 in a small push position. The position on the cart 1 is stable. There are at least two positioning grooves 204 on the constraint plate 203 to keep the support column 4 stable at the two extreme positions. The upper end of the pin 301 also has a handle 302 to facilitate the operator to pick up and put down the constraint 3. The lower surface of the transport platform 101 is fixedly connected with a reinforcing plate 102 to improve the structural strength of the transport platform 101 and thus ensure the flatness of the upper surface of the transport platform 101. Rollers 104 are provided at the four corners of the lower surface of the transport platform 101 to keep the transport platform 101 stable. Handrails 103 are also provided on the transport platform 101 to facilitate the operator to apply force to the trolley 1 to push and transfer the trolley 1.

[0030] The upper and lower surfaces of the configuration platform 5 are fixedly connected with main guide rods 501. The two main guide rods 501 are coaxial, and each main guide rod 501 is fitted with a sliding member 6, which can slide up and down along the main guide rod 501. The end of the main guide rod 501 is fixedly connected with a limit ring 502 to prevent the sliding member 6 from disengaging from the main guide rod 501. The main guide rod 501 is fitted with a spring 503 located between the limit ring 502 and the sliding member 6. The spring 503 is used to provide a buffer force for the sliding member 6.

[0031] The two detection ends 7 are symmetrical about the configuration platform 5. Each detection end 7 is actually connected to two sliding members 6 via a movable connecting rod 9. Each detection end 7 includes a horizontal plate 702, with a hinge plate 701 at the center of its side. The main body of the sliding member 6 is a sliding sleeve 601. Each sliding sleeve 601 has a pair of longitudinal cantilever arms 602 symmetrical about its axis on its outer surface. The movable connecting rod 9 is divided into an upper inclined rod 901 and a lower inclined rod 902. The combination of the upper inclined rod 901 and the lower inclined rod 902 is divided into two groups. The two groups of upper inclined rods 901 and lower inclined rods 902 are also symmetrical about the configuration platform 5. For the same group of upper inclined rods 901 and lower inclined rods 902, the upper end of the upper inclined rod 901 is rotatably connected to the longitudinal cantilever arm 602 of the upper sliding member 6, and the lower end of the upper inclined rod 901 is connected to the hinge plate 602. Plate 701 is rotatably connected; the lower inclined rod 902 is rotatably connected at its lower end to the longitudinal cantilever 602 of the sliding member 6 below, and the upper end of the lower inclined rod 902 is rotatably connected to the hinge plate 701. Under normal circumstances, the upper inclined rod 901 and the lower inclined rod 902 are of equal length. The upper inclined rod 901 and the lower inclined rod 902 of the same group form an isosceles triangle with a variable base length with the two main rods 501. The upper and lower surfaces of the mounting platform 5 also have auxiliary guide rods 504. The auxiliary guide rods 504 are parallel to the main rods 501, and the axes of the two auxiliary guide rods 504 are collinear. The outer side of the sliding sleeve 601 has a transverse cantilever 603. The transverse cantilever 603 has a guide hole 604, which is just enough for the auxiliary guide rod 504 to pass through to form a sliding pair, thereby preventing the sliding member 6 from rotating relative to the main rod 501 and ensuring the smooth sliding of the sliding member 6.

[0032] A pressure sensor 705 is installed inside the detection end 7. It is a key component for detecting the pressure when the elevator car door is closed. The pressure sensor 705 is fixed on the other side of the horizontal plate 702. The probe of the pressure sensor 705 is connected to a pressure plate 706, which is used to directly contact the elevator car door to withstand the squeezing force when the door is closed. The two ends of the horizontal plate 702 have extension arms 703. The extension arms 703 extend in the opposite direction to the extension direction of the hinge plate 701. The two extension arms 703 have grooves 704 on opposite sides. The two ends of the pressure plate 706 cooperate with the two grooves 704 to form a sliding pair, which further improves the stability of the pressure plate 706 after contacting the elevator car door. A microcomputer 8 is also installed on the configuration platform 5. The two pressure sensors 705 are electrically connected to the microcomputer 8 to transmit the detected pressure signal to the microcomputer 8 in real time for recording, processing and analysis.

[0033] Working principle: In the initial state, the slide plate 401 is in contact with the rear baffle 202, the support column 4 is located at the rear limit and is locked by the constraint member 3, the configuration platform 5 is located above the transport platform 101, and the center of gravity of the entire device is roughly located in the center of the transport platform 101.

[0034] In use, push the trolley 1 to the elevator car to be tested, open the elevator car door and keep it open, remove the constraint 3 to unlock the slide plate 401, push the support column 4 forward to position the mounting platform 5 between the two elevator car doors until the slide plate 401 contacts the front baffle 201, then insert the constraint 3 to keep the support column 4 in the front limit position and stable. Due to the elasticity of the spring 503, the two sliding parts 6 will be forced to move closer to each other and the two detection ends 7 will move further apart. The distance between the two detection ends 7 is usually greater than the distance between the two elevator car doors. Manually press the two detection ends 7 to bring them closer together, then move them between the two elevator car doors, and then release the two detection ends 7 so that the pressure plate 70 of the detection ends 7 can be released. When the sliding member 6 contacts the opposing side of the elevator car door, the pressure plate 706 will be pre-pressed against the elevator car due to the elastic force of the spring 503. The opposing side of the elevator car door is located between the two extension arms 703 of the detection end 7. At this time, the pressure sensor 705 has detected the pressure data. When the elevator is manually operated, the car door is closed. The two detection ends 7 overcome the elastic force of the spring 503 and approach each other through the upper inclined rod 901 and the lower inclined rod 902 until the sliding member 6 can no longer move upward, indicating that the closing pressure of the elevator car door has reached the upper limit. The two pressure sensors 705 transmit the real-time recorded detection data to the microcomputer 8. The display screen of the microcomputer 8 can display the pressure curve, and the maximum pressure value can be clearly observed.

[0035] After the test is completed, open the elevator car door again, manually separate the two test ends 7 from the elevator car door, and then let the configuration platform 5 leave the space between the two elevator car doors. Remove the constraint 3, push the support column 4 to let the slide plate 401 return to the rear limit position that contacts the rear baffle 202, and lock it again with the constraint 3. At this time, the center of gravity of the configuration platform 5 and its connecting parts is roughly in the center of the transport platform 101, so it is not easy to tip over when pulling the trolley 1, and the transfer process is safer.

[0036] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. An elevator car door closing pressure detection device, characterized in that: The device includes a trolley (1) and two detection ends (7). The trolley (1) is equipped with a configuration platform (5). The upper and lower surfaces of the configuration platform (5) are fixedly connected with a main guide rod (501). Each main guide rod (501) is fitted with a sliding member (6). The end of the main guide rod (501) is fixedly connected with a limit ring (502). The main guide rod (501) is fitted with a spring (503) located between the limit ring (502) and the sliding member (6). The two detection ends (7) are symmetrical about the configuration platform (5). Each detection end (7) is movably connected to the two sliding members (6) through a movable connecting rod (9). A pressure sensor (705) is installed inside the detection end (7). A microcomputer (8) is also installed on the configuration platform (5).

2. The elevator car door closing pressure detection device as described in claim 1, characterized in that: The detection end (7) includes a horizontal plate (702), and a hinge plate (701) is located at the center of the side of the horizontal plate (702). The main body of the sliding member (6) is a sliding sleeve (601). Each sliding sleeve (601) has a pair of longitudinal cantilever arms (602) symmetrical about the axis on its outer side. The movable connecting rod (9) is divided into an upper inclined rod (901) and a lower inclined rod (902). The upper end of the upper inclined rod (901) is rotatably connected to the longitudinal cantilever arm (602) of the upper sliding member (6), and the lower end of the upper inclined rod (901) is rotatably connected to the hinge plate (701). The lower end of the lower inclined rod (902) is rotatably connected to the longitudinal cantilever arm (602) of the lower sliding member (6), and the upper end of the lower inclined rod (902) is rotatably connected to the hinge plate (701).

3. The elevator car door closing pressure detection device as described in claim 2, characterized in that: The pressure sensor (705) is fixed on the other side of the horizontal plate (702). The probe of the pressure sensor (705) is connected to a pressure plate (706) and is suitable for direct contact with the elevator car door.

4. The elevator car door closing pressure detection device as described in claim 3, characterized in that: The horizontal plate (702) has extension arms (703) at both ends, and the two extension arms (703) have grooves (704) on opposite sides. The two ends of the pressure plate (706) cooperate with the two grooves (704) to form a sliding pair.

5. The elevator car door closing pressure detection device as described in claim 2, characterized in that: The upper and lower surfaces of the configuration platform (5) also have a secondary guide rod (504), which is parallel to the main guide rod (501). The outer side of the sliding sleeve (601) has a transverse cantilever (603), which has a guide hole (604) for the secondary guide rod (504) to pass through to form a sliding pair.

6. The elevator car door closing pressure detection device as described in any one of claims 1 to 5, characterized in that: The trolley (1) includes a transport platform (101), which is connected to the configuration platform (5) via a support column (4). A guide frame (2) is fixedly connected to the transport platform (101), and the lower end of the support column (4) is adapted to slide along the guide frame (2).

7. The elevator car door closing pressure detection device as described in claim 6, characterized in that: The support column (4) includes a column (403) fixedly connected to the configuration platform (5). A sliding plate (401) is fixedly connected to the lower end of the column (403). The guide frame (2) includes a parallel front baffle (201) and a rear baffle (202). A pair of constraint plates (203) are fixedly connected between the front baffle (201) and the rear baffle (202). The sliding plate (401) is located between the transport platform (101) and the constraint plate (203) to form a sliding pair. The sliding plate (401) is kept stable relative to the constraint plate (203) by the constraint member (3).

8. The elevator car door closing pressure detection device as described in claim 7, characterized in that: A rib plate (404) is fixedly connected between the upper surface of the slide plate (401) and the outer side of the column (403). The slide plate (401) is also provided with a pin hole (402). The constraint plate (203) is provided with a positioning groove (204) that runs through the upper and lower surfaces. The constraint member (3) includes a pin shaft (301) which is adapted to pass through the positioning groove (204) and be inserted into the pin hole (402). The upper end of the pin shaft (301) has a handle (302).

9. The elevator car door closing pressure detection device as described in claim 6, characterized in that: A reinforcing plate (102) is fixedly connected to the lower surface of the transport platform (101), and rollers (104) are provided at the four corners of the lower surface of the transport platform (101). Handrails (103) are also provided on the transport platform (101).

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