Integrated elevator door closing pressure detector

Abstract

The utility model discloses an integrated elevator door closing pressure detector, which relates to the technical field of special equipment detection, and comprises a measurement host and a wireless thermal printer, and the measurement host comprises an operation unit and a measurement unit; the operation unit comprises a panel, an operation screen, a circuit board, a rear shell, a plastic signal board, a switch, a charging port and a battery; the measuring unit comprises a measuring shell, a pressure sensor, a bottom cylinder, a reset spring, a pressing cap and a limiting cylinder; the operation unit and the measuring unit are integrated, so that the device is more convenient, efficient, time-saving and labor-saving, and is very convenient to carry. The operation screen and the force measuring unit are integrally designed, no other related equipment is arranged, the operation screen can be held by one hand or two hands during measurement, measurement can be completed in the closing process of an elevator door, measurement and results are displayed in real time in the detection process, real-time impact force, impact energy, impact force acting time and maximum impact force parameters are displayed on a measurement interface, and whole-process monitoring is achieved. And a wireless thermal printer can be connected to print a detection report on site.

Description

Technical Field

[0001] The utility model relates to the technical field of special equipment detection, in particular to an integrated elevator door closing pressure detector. Background Technique

[0002] With the rapid development of China's economy, there are more and more high-rise buildings. In order to meet people's requirements for travel convenience, comfort, etc., elevators have become one of the indispensable means of transportation in modern life. Therefore, the usage of elevators is also increasing. Subsequently, various elevator accidents have occurred, and accidents caused by elevator door failures account for a large proportion. As the first and most direct elevator component that passengers face when taking an elevator, the safety of the elevator door is particularly important. The anti-pinch protection device of the elevator door gives an elevator door opening signal when the signals such as photoelectric or light curtain are blocked, so as to achieve the purpose of protecting the personal safety of passengers. If the anti-pinch protection device of the elevator door fails, the elevator door will hit the passengers and cause harm to the passengers. If the closing force of the elevator door is relatively large, the harm caused to the passengers will be more serious.

[0003] GB / T 7588.1-2020 "Safety Rules for the Construction and Installation of Lifts - Part 1: Passenger and Goods Lifts" stipulates as follows: 5.3.6.2.2.1 Power-driven automatic doors shall meet the following conditions: a) The kinetic energy of the landing door and / or car door and their rigidly connected mechanical parts, calculated or measured at the average closing speed, shall not be greater than 10 J. c) The force that prevents the door from closing shall not be greater than 150 N, and the measurement of this force shall not be carried out within the first 1 / 3 of the closing stroke.

[0004] Existing detection means and detection instruments, such as:

[0005] In the above specification, a reference measurement method is given. When measuring, a set of devices can be used. The device includes a piston with a scale acting on a spring and is equipped with an easily slidable ring to indicate the limit point of motion at the moment of impact. By checking the scale value corresponding to the limit point, the corresponding kinetic energy value can be calculated. This method has simple tools, requires visual observation of the dynamic process during measurement, and the repeatability of the measurement results is poor.

[0006] Chinese patents with the authorization announcement numbers of "CN 215338667 U" and "CN 219567208 U" both use detection equipment to detect the elevator door closing pressure. In the detection equipment, the detection sensor or the host is separated from the handheld part. First, the sensor or the host is used for detection, and the data is communicated with the handheld part wirelessly or via Bluetooth. The relevant detection data is calculated, analyzed, and displayed on the handheld part. Although advanced detection equipment is adopted compared with the method in the specification, during the use process, it is necessary to perform detection operations while checking the data, which poses a risk of safety accidents. At the same time, the detection equipment is relatively large in size, and it is not very convenient to operate and carry. Utility Model Content

[0007] The purpose of the present utility model is to provide an integrated elevator door closing pressure detector to solve the problems of inconvenient operation and carrying and inflexible application of the existing elevator door closing force detection equipment proposed in the above background technology.

[0008] To achieve the above purpose, the present utility model provides the following technical solution: An integrated elevator door closing pressure detector includes a measurement host and a wireless thermal printer; the measurement host includes an operation unit and a measurement unit; the operation unit includes a front-side rectangular panel and a rear-side rectangular rear shell bottom wall parallel to it. At the four side edges of the rear shell bottom wall, there are rear shell side walls perpendicular to it and extending forward. And the front side edges of the rear shell side walls are fixed to the outer sides of the panel with bolts; a rectangular window is provided in the middle of the panel, and an operation screen is provided on the rear side. A circuit board electrically connected to the operation screen is provided on the rear side of the operation screen; a battery is adhesively fixed to the front side of the rear shell bottom wall and electrically connected to the circuit board; a through hole is provided at the center position of a relatively large side wall among the rear shell side walls, and bolt holes are provided around the through hole and a measurement unit is fixed with bolts; the measurement unit includes a measurement housing bolt-fixed to the rear shell side wall, and a concave cylindrical center groove is provided on the measurement housing, and the axis of the center groove is parallel to the panel. A pressure sensor coaxial with it is provided at the bottom of the center groove, and a bottom cylinder with its outer wall closely attached to the pressure sensor is provided. A return spring is provided inside the bottom cylinder, and the other end of the return spring is provided with a pressure cap; a limiting cylinder is also threadedly installed in the center groove, and a center hole is provided at the center of the bottom wall of the limiting cylinder. The top of the pressure cap passes through the center hole of the limiting cylinder, and the root of the pressure cap is restricted inside the limiting cylinder.

[0009] Preferably, the operation screen and the circuit board are jointly fixed to the panel with bolts.

[0010] Preferably, one of the two side walls with smaller specifications in the rear shell side wall is embedded with a plastic signal board, and the other is embedded with a switch and a charging port, and the switch and the charging port are respectively electrically connected to the circuit board.

[0011] Preferably, by adjusting the thread depth of the limit cylinder, the contact force between the bottom cylinder and the pressure sensor can be adjusted and pre-set to zero.

[0012] Preferably, the connecting wire of the pressure sensor passes through the through hole and is electrically connected to the circuit board.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The integrated elevator door closing pressure detector provided by the present utility model integrates the operation unit and the measurement unit, which is more convenient, efficient, time-saving and labor-saving, and is very convenient to carry; it is used for measuring the elevator door closing force and kinetic energy. The operation screen and the force measuring unit are integrally designed, without other related devices. It can be held with one or both hands during measurement and can be completed during the closing process of the elevator door. During the detection process, the measurement and result of the elevator door closing pressure are displayed in real time. The measurement interface displays real-time impact force, impact energy, impact force action time, maximum impact force parameters, and the whole process is monitored. And it can be connected to a wireless thermal printer to print the detection report on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an isometric view of the present utility model;

[0016] Figure 2 is a schematic diagram of the measurement host;

[0017] Figure 3 is Figure 2 an exploded view;

[0018] Figure 4 is a right view;

[0019] Figure 5 is Figure 4 a sectional view taken along A-A in

[0020] Figure 6 is a schematic diagram of the use of the integrated elevator door closing pressure detector;

[0021] In the figure: measurement host - 1, operation unit - 11, panel - 111, window opening - 112, operation screen - 113, circuit board - 114, bottom wall of the rear shell - 115, side wall of the rear shell - 116, plastic signal board - 117, switch - 118, charging port - 119, battery - 120, through hole - 121, measurement unit - 13, measurement housing - 131, central groove - 132, pressure sensor - 133, bottom cylinder - 134, return spring - 135, compression cap - 136, limit cylinder - 137, wireless thermal printer - 2. Detailed implementation mode

[0022] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments.

[0023] Please refer to Figures 1-6 , Figure 1 is the axonometric drawing of the present utility model; Figure 2 is the schematic diagram of the measurement host; Figure 3 is Figure 2 the exploded view; Figure 4 is the right view; Figure 5 is Figure 4 the sectional view taken along A - A in Figure 6 is the schematic diagram of the use of the integrated elevator door - closing pressure detector.

[0024] The present utility model provides an integrated elevator door - closing pressure detector for measuring the door - closing force and kinetic energy of an elevator; it includes a measurement host 1 and a wireless thermal printer 2.

[0025] The measurement host 1 includes an operation unit 11 and a measurement unit 13;

[0026] The operation unit 11 includes a panel 111 arranged in a rectangle, and a rectangular opening 112 is provided at the middle position of the panel 111. An operation screen 113 is arranged on the rear side of the panel 111 through the opening 112. A circuit board 114 is arranged at the rear side of the operation screen 113. The operation screen 113 and the circuit board 114 are jointly fixed on the panel 111 by bolts; a rectangular rear shell bottom wall 115 parallel to it is further arranged at the rear side of the panel 111. Rear shell side walls 116 perpendicular to it and extending forward are arranged at the four side edges of the rear shell bottom wall 115. And the front side edges of the rear shell side walls 116 are fixedly connected to the outer sides of the panel 111 by bolts; a plastic signal board 117 is embedded in one of the two rear shell side walls 116 with smaller specifications, and a switch 118 and a charging port 119 are embedded in the other. And the switch 118 and the charging port 119 are respectively electrically connected to the circuit board 114; a battery 120 is adhesively fixed to the front side of the rear shell bottom wall 115 and is electrically connected to the circuit board 114;

[0027] A through hole 121 is arranged at the center position of one of the rear shell side walls 116 with larger specifications, and bolt holes are arranged around the through hole 121 and a measuring unit 13 is fixed by bolts.

[0028] The measuring unit 13 includes a measuring housing 131 bolted to the rear shell side wall 116. An inwardly concave cylindrical central groove 132 is arranged on the measuring housing 131. And the axis of the central groove 132 is parallel to the panel 111. A pressure sensor 133 coaxial with it is arranged at the bottom of the central groove 132. A bottom cylinder 134 with its outer wall closely attached is arranged closely to the pressure sensor 133. A return spring 135 is arranged inside the bottom cylinder 134. And the other end of the return spring 135 is provided with a pressing cap 136; A limiting cylinder 137 is also threadedly installed in the central groove 132. And a central hole is arranged at the axis of the bottom wall of the limiting cylinder 137. The cap top of the pressing cap 136 passes through the central hole of the limiting cylinder 137. The root of the pressing cap 136 is restricted inside the limiting cylinder 137. By adjusting the threaded depth of the limiting cylinder 137, the contact force between the bottom cylinder 134 and the pressure sensor 133 can be adjusted and pre-set to the zero position.

[0029] The connecting wire of the pressure sensor 134 passes through the through hole 121 and is electrically connected to the circuit board 114, so as to transmit the measurement data to the circuit board 114 and then display it through the operation screen 113.

[0030] When using the integrated elevator door closing pressure detector to detect the elevator door closing pressure, the following steps are included:

[0031] Step 1: Take out the measuring host 1, turn on the switch, and enter the main measurement interface;

[0032] Step 2: Click the [Measure] icon to enter the measurement interface. After clicking the [Measure] icon in the upper right corner, the measurement starts. The pressure sensor 133 in the measurement unit 13 automatically detects the force value and displays the detected value on the operation screen 113.

[0033] Step 3, measurement operation: When the elevator door is closing, the operator holds the operating unit 11 of the measuring host 1, clamps the measuring unit 13 on the edge of the elevator door and moves with the elevator door until the elevator door clamps the sensor measuring probe, and the whole measurement process is completed;

[0034] Step 4: If you need to re-measure, click the "Measure" icon again and repeat the above process;

[0035] Step 5: After the measurement is completed, you can choose to save or print the measurement data through the wireless thermal printer 2, or you can directly exit the measurement interface.

[0036] The utility model provides an integrated elevator door closing pressure detector, in which the operation unit and the measuring unit are integrated, which is more convenient, efficient, time-saving and labor-saving, and very easy to carry; it is used to measure the elevator door closing force and kinetic energy. The operation screen and the force measuring unit are integrated into one design, without other related equipment, and can be held by one or both hands during measurement, and the measurement can be completed as the elevator door is closed. During the detection process, the measurement and results of the elevator door closing pressure are displayed in real time, and the measurement interface displays the real-time impact force, impact energy, impact force action time, and maximum impact force parameters, with full-process monitoring, and can be connected to a wireless thermal printer to print the test report on site.

[0037] Although the embodiments of the utility model have been shown and described, it is obvious that the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, it can be understood by ordinary technicians in this field that all other embodiments obtained by making various changes, modifications, substitutions and variations to these embodiments without departing from the principle and spirit of the utility model and without making creative work, all belong to the scope of protection of the utility model.

Claims

1. An integrated elevator door closing pressure detector, characterized in that: It includes a measurement host (1) and a wireless thermal printer (2); the measurement host (1) includes an operation unit (11) and a measurement unit (13); the operation unit (11) includes a panel (111) arranged in a rectangle on the front side and a rear shell bottom wall (115) arranged in a rectangle parallel to the rear side. At the four side edges of the rear shell bottom wall (115), there are rear shell side walls (116) perpendicular to it and extending forward. And the front side edges of the rear shell side walls (116) are fixedly connected to the outer sides of the panel (111) with bolts; at the middle position of the panel (111), there is a rectangular window opening (112) and an operation screen (113) is arranged on the rear side. On the rear side of the operation screen (113), there is a circuit board (114) electrically connected to it; on the front side of the rear shell bottom wall (115), a battery (120) is pasted and fixed and is electrically connected to the circuit board (114); at the center position of one of the rear shell side walls (116), there is a through hole (121), and bolt holes are arranged around the through hole (121) and the measurement unit (13) is fixed with bolts; the measurement unit (13) includes a measurement outer shell (131) bolt-fixed to the rear shell side wall (116), and an inwardly concave cylindrical center groove (132) is arranged on the measurement outer shell (131). And the axis of the center groove (132) is parallel to the panel (111). At the bottom of the center groove (132), there is a pressure sensor (133) coaxial with it. A bottom cylinder (134) with its outer wall closely attached is arranged closely to the pressure sensor (133). A return spring (135) is arranged inside the bottom cylinder (134), and the other end of the return spring (135) is provided with a pressure cap (136); a limiting cylinder (137) is also installed in the center groove (132) by threading, and a center hole is arranged at the center of the bottom wall of the limiting cylinder (137). The top of the pressure cap (136) passes through the center hole of the limiting cylinder (137), and the root of the pressure cap (136) is restricted inside the limiting cylinder (137).

2. The integrated elevator door closing pressure detector according to claim 1, characterized in that: The operation screen (113) and the circuit board (114) are jointly fixed on the panel (111) with bolts.

3. The integrated elevator door closing pressure detector according to claim 2, wherein: A plastic signal board (117) is embedded in one of the rear shell side walls (116) adjacent to the rear shell side wall (116) provided with the through hole (121). A switch (118) and a charging port (119) are embedded in the other side wall, and the switch (118) and the charging port (119) are respectively electrically connected to the circuit board (114).

4. The integrated elevator door closing pressure detector according to claim 3, characterized in that: By adjusting the threaded depth of the limiting cylinder (137), the contact force between the bottom cylinder (134) and the pressure sensor (133) can be adjusted and pre-set to the zero position.

5. The integrated elevator door closing pressure detector according to claim 4, characterized in that: The connecting wire of the pressure sensor (133) passes through the through hole (121) and is electrically connected to the circuit board (114).

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