Anti-extrusion test tool for rail transit door leaf
By adopting a combined structure of sliding chute, limiting groove, cylinder, pressure sensor, damping rod and airbag in rail transit door detection, the problem of door frame damage caused by cylinder leakage is solved, and the safety and accuracy of door detection is improved. , and extend the life of the equipment through the lubricating structure.
Patent Information
- Application Number
- CN202323575453.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-27
AI Technical Summary
During the inspection of existing rail transit doors, the continuous opening and closing test of cylinder drive is prone to collision with the door frame and damage due to cylinder leakage.
A rail transit door leaf anti-extrusion testing tool is designed, using a combined structure such as sliding grooves, limit grooves, cylinders, pressure sensors, damping rods, springs and airbags. The pressure sensor converts the pressure into an electrical signal to stop the cylinder working. The damping rods are used to convert the pressure into an electrical signal. and airbags provide cushioning to prevent the door from colliding with the door frame.
It effectively avoids collision damage between the door and the door frame, improves the safety and accuracy of door inspection, and prevents cylinder corrosion through lubricating structure.
Smart Images
Figure CN222166580U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of anti-extrusion testing tooling for rail transit door leaves, in particular to an anti-extrusion testing tooling for rail transit door leaves. Background Art
[0002] The car door provides a passage for the driver and passengers to enter and exit the vehicle, isolates them from interference from outside the vehicle, reduces side impacts to a certain extent, and protects the occupants. The beauty of the car is also related to the shape of the door. The quality of the door is mainly reflected in its anti-collision performance.
[0003] In daily life, since rail transit doors are double-opening, the collision test between the doors is also an important indicator for the detection of such doors. The inventor found in daily work that in order to shorten the test time, a cylinder is often used to drive the two doors to open and close continuously for collision. Since the cylinder is driven by air force, when a leak occurs in the pipeline, the retraction amount of the cylinder will increase, causing the door frame to collide with the door frame and cause damage. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes an anti-extrusion testing tool for rail transit door leaves.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a rail transit door leaf anti-extrusion test tool includes a door frame, the left and right sides of the door frame are respectively provided with slide grooves, the left and right ends of the door frame are respectively provided with limit grooves, a cylinder is inserted into the door frame, a fixed block is provided at one end of the cylinder, the fixed block is used to connect with the car door, and the car door can be slidably connected with the two slide grooves, the rail transit door leaf anti-extrusion test tool also includes a protective structure, the protective structure includes at least four pressure sensors, and the four pressure sensors are respectively used to be connected to the car door.
[0006] The effect achieved by the above components is: start the cylinder, the cylinder moves left and right, and then drives the car door to move left and right, realizing the opening and closing of the car door. When the car door moves left and right, when the pressure sensor on the surface of the car door contacts the left and right limit grooves respectively, pressure will be applied to the pressure sensor, and the pressure sensor will convert the pressure into an electrical signal. Therefore, when the pressure sensor is subjected to pressure, the cylinder stops working, thereby avoiding the car door from colliding with the door frame and causing damage if the cylinder does not stop in time after the car door moves into place.
[0007] Preferably, four damping rods are fixedly connected in the limiting groove on the left, and a baffle is commonly fixedly connected to the four damping rods.
[0008] The effect achieved by the above components is: when the car door moves to the left and the pressure sensor contacts the baffle, if the cylinder does not stop working immediately, the car door will squeeze the limit groove to cause the damping rod to contract, thereby improving the protection of the car door.
[0009] Preferably, a spring is sleeved on the damping rod, one end of the spring is fixedly connected to the left inner wall of the limiting groove, and the other end of the spring is fixedly connected to the left surface of the baffle.
[0010] The effect achieved by the above components is: when the damping rod is contracted, the spring is in a contracted state, so when the car door moves to the left, the baffle is reset in the opposite direction under the action of the spring rebound force.
[0011] Preferably, a first airbag is fixedly connected to the left limiting groove, and the first airbag is in contact with the left surface of the baffle.
[0012] The effect achieved by the above components is: when the vehicle door squeezes the baffle plate, causing the baffle plate to move to the left, the baffle plate will squeeze the first airbag, causing the first airbag to shrink, thereby further strengthening the protection of the vehicle door.
[0013] Preferably, a terminal post is provided on the surface of the cylinder.
[0014] The effect achieved by the above components is: the terminal is used to connect an external control module to control the extension and retraction of the cylinder.
[0015] Preferably, placement grooves are respectively provided on both sides of the door frame, the two placement grooves are respectively connected with the two limit grooves, connecting tubes are respectively provided in the two placement grooves, one end of the connecting tube is fixedly connected and connected with the first airbag, and the other end of the connecting tube is connected to an external air pump through an electromagnetic valve.
[0016] The effect achieved by the above components is that the air pump inflates the first airbag through the electromagnetic valve, thereby ensuring that the airbag has a cushioning property.
[0017] Preferably, a lubrication structure is provided on the door frame, and the lubrication structure is mainly composed of a box body, the box body is fixedly connected to the upper surface of the door frame, and lubricating oil is provided in the box body.
[0018] The effect achieved by the above components is that lubricating oil can be injected into the cylinder through the box to prevent the cylinder from being damaged by water rust.
[0019] Preferably, an oil pump is fixedly connected to the upper surface of the door frame, an input end of the oil pump is fixedly connected to a first oil pipe, the first oil pipe is communicated with the casing, and an output end of the oil pump is fixedly connected to a second oil pipe, the second oil pipe is in contact with the cylinder surface.
[0020] The effects achieved by the above components are: when the oil pump is started, the oil pump delivers the lubricating oil in the box to the cylinder surface through the first oil pipe and the second oil pipe to lubricate the cylinder, thereby improving the convenience and accuracy of the lubrication operation.
[0021] Compared with the prior art, the advantages and positive effects of the utility model are that, in the utility model, by setting a protective structure, when the car door is moved left and right, when the pressure sensor on the surface of the car door contacts the left and right limit grooves respectively, pressure will be applied to the pressure sensor, and the pressure sensor will convert the pressure into an electrical signal. Therefore, when the pressure sensor is subjected to pressure, the cylinder will stop working. When the car door moves to the left and the pressure sensor contacts the baffle, if the cylinder does not stop working immediately, the car door will squeeze the limit groove to cause the damping rod to contract, thereby improving the protective effect of the car door. When the damping rod contracts, the spring is in a contracted state. Therefore, when the car door moves to the left, the baffle will reset in the opposite direction under the action of the spring rebound force. When the car door squeezes the baffle and causes the baffle to move to the left, the baffle will squeeze the first airbag, causing the first airbag to contract, thereby further strengthening the protection of the car door. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 A three-dimensional structural schematic diagram of a rail transit door leaf anti-extrusion test tooling is proposed for the utility model;
[0023] Figure 2 A partial schematic diagram of a protective structure of a rail transit door leaf anti-extrusion test tooling proposed by the utility model;
[0024] Figure 3 Another schematic diagram of a protective structure of a rail transit door leaf anti-extrusion test tooling proposed by the utility model;
[0025] Figure 4 The utility model provides a partial schematic diagram of a lubrication structure of a rail transit door leaf anti-extrusion testing tool.
[0026] Legend: 1. Terminal; 2. Door frame; 3. Slide groove; 4. Limit groove; 5. Cylinder; 6. Door; 7. Fixing block; 8. Protective structure; 81. Pressure sensor; 82. Damping rod; 83. Spring; 84. Baffle; 85. First airbag; 86. Placement groove; 87. Connecting pipe; 9. Lubrication structure; 91. Box; 92. Oil pump; 93. First oil pipeline; 94. Second oil pipeline. DETAILED DESCRIPTION
[0027] Embodiment 1, as Figure 1As shown, a rail transit door leaf anti-extrusion test tool includes a door frame 2, a slide groove 3 is respectively opened on the left and right sides of the door frame 2, a limit groove 4 is respectively opened on the left and right ends of the door frame 2, a cylinder 5 is inserted into the door frame 2, a fixed block 7 is set at one end of the cylinder 5, a car door 6 is fixedly connected to the fixed block 7, and the car door 6 is slidably connected to the two slide grooves 3.
[0028] Reference Figure 2 and Figure 3 A protective structure 8 is provided on the vehicle door 6, and the protective structure 8 is mainly composed of four pressure sensors 81. The four pressure sensors 81 are respectively fixedly connected to the vehicle door 6, such as by bolt fixing. The terminal 1 is started, and the terminal 1 drives the cylinder 5 to move left and right. A fixing block is provided at one end of the cylinder, and the fixing block is used to be connected to the vehicle door and can be fixed by bolts. Then, the car door 6 is driven to move left and right to open and close the car door 6. When the car door 6 is moved left and right, when the pressure sensors 81 on the surface of the car door 6 contact the left and right limit grooves 4 respectively, pressure is applied to the pressure sensor 81, and the pressure sensor 81 converts the pressure into an electrical signal. Therefore, when the pressure sensor 81 is subjected to pressure, the cylinder 5 stops working, thereby avoiding the situation that when the car door 6 moves into place, if the cylinder 5 is not stopped in time, the car door 6 will squeeze the screw and cause the screw to bend. Four damping rods 82 are fixedly connected in the limit groove 4 on the left, and a baffle 84 is fixedly connected to the four damping rods 82. When the car door 6 moves to the left and makes the pressure sensor 81 contact with the baffle 84, if the terminal 1 does not stop working immediately, the car door 6 will be in a state of being blocked. The door 6 squeezes the limiting groove 4 to cause the damping rod 82 to contract, thereby improving the protection of the cylinder 5. A spring 83 is sleeved on the damping rod 82, one end of the spring 83 is fixedly connected to the left inner wall of the limiting groove 4, and the other end of the spring 83 is fixedly connected to the left surface of the baffle 84. When the damping rod 82 contracts, the spring 83 is in a contracted state. Therefore, when the car door 6 moves to the left, the baffle 84 is reset in the reverse direction under the action of the rebound force of the spring 83. A first airbag 85 is fixedly connected to the left limiting groove 4, and the first airbag 85 contacts the left surface of the baffle 84. When the car door 6 squeezes the baffle 84 and causes the baffle 84 to move to the left, the baffle 84 will squeeze the first airbag 85, causing the first airbag 85 to contract, thereby further strengthening the protection of the car door 6.
[0029] Reference Figure 4A lubrication structure 9 is provided on the door frame 2, and the lubrication structure 9 is mainly composed of a box body 91. The box body 91 is fixedly connected to the upper surface of the door frame 2. Lubricating oil is provided in the box body 91, and the lubricating oil can be injected into the cylinder 5 through the box body 91 to prevent the cylinder 5 from being damaged by water rust. An oil pump 92 is fixedly connected to the upper surface of the door frame 2, and an oil filling hole is opened on the cylinder 5. The input end of the oil pump 92 is fixedly connected to a first oil pipe 93, and the first oil pipe 93 is connected to the box body 91. The output end of the oil pump 92 is fixedly connected to a second oil pipe 94, and the second oil pipe 94 is connected to the oil filling hole. When the oil pump 92 is started, the oil pump 92 will transport the lubricating oil in the box body 91 to the cylinder 5 through the first oil pipe 93 and the second oil pipe 94, thereby lubricating the cylinder 5, thereby improving the convenience and accuracy of the lubrication operation.
[0030] Working principle: when the door 6 is tested, the terminal 1 is started, and the terminal 1 drives the cylinder 5 to move left and right, thereby driving the door 6 to move left and right for continuous collision testing. The performance of the door 6 is tested by observing the damage degree and test time of the door 6, and the opening and closing of the door 6 is realized. When the door 6 is moved left and right, when the pressure sensor 81 on the surface of the door 6 contacts the left and right limit grooves 4 respectively, pressure is applied to the pressure sensor 81, and the pressure sensor 81 converts the pressure into an electrical signal. Therefore, when the pressure sensor 81 is subjected to pressure, the terminal 1 stops working, thereby avoiding the situation that when the door 6 moves into place, if the cylinder is not stopped in time, the door 6 will squeeze the screw, causing the screw to bend. When the door 6 moves to the left and the pressure sensor 81 contacts the baffle 84, if the terminal 1 does not stop working immediately, the door 6 squeezes the limit groove 4 to make the damping rod 82 contract, thereby improving the protection of the cylinder 5. When the damping rod 82 contracts, the spring 83 is in a contracted state. Therefore, when the door 6 moves to the left, the baffle 84 is reversely reset under the action of the rebound elastic force of the spring 83. When the door 6 squeezes the baffle 84 and makes the baffle 84 move to the left, the baffle 84 squeezes the first airbag 85 to make the first airbag 85 contract, thereby further strengthening the protection of the cylinder 5. Lubricating oil can be injected into the cylinder 5 through the box 91 to prevent the cylinder 5 from being damaged by water rust. The oil pump 92 is started, and the oil pump 92 delivers the lubricating oil in the box 91 to the cylinder 5 through the first oil pipe 93 and the second oil pipe 94, thereby lubricating the cylinder 5, improving the convenience and accuracy of the lubrication operation.
[0031] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.
Claims
1. A rail transit door leaf anti-extrusion test tool, comprising a door frame (2), characterized in that: The left and right sides of the door frame (2) are respectively provided with slide grooves (3), the left and right ends of the door frame (2) are respectively provided with limit grooves (4), a cylinder (5) is inserted into the door frame (2), one end of the cylinder (5) is provided with a fixing block (7), the fixing block (7) is used to connect with the vehicle door (6), the vehicle door (6) can be slidably connected with the two slide grooves (3), the rail transit door leaf anti-extrusion test tool also includes a protective structure (8), the protective structure (8) includes at least four pressure sensors (81), and the four pressure sensors (81) are respectively used to connect with the vehicle door (6).
2. The rail transit door leaf anti-extrusion test tool according to claim 1 is characterized in that: Four damping rods (82) are fixedly connected in the left limiting groove (4), and a baffle (84) is fixedly connected to the four damping rods (82).
3. The rail transit door leaf anti-extrusion test tool according to claim 2 is characterized in that: A spring (83) is sleeved on the damping rod (82), one end of the spring (83) is fixedly connected to the left inner wall of the limiting groove (4), and the other end of the spring (83) is fixedly connected to the left surface of the baffle (84).
4. The rail transit door leaf anti-extrusion test tool according to claim 3 is characterized in that: A first air bag (85) is fixedly connected to the left limiting groove (4), and the first air bag (85) is in contact with the left surface of the baffle (84).
5. The rail transit door leaf anti-extrusion test tool according to claim 4 is characterized in that: A terminal post (1) is provided on the surface of the cylinder (5).
6. The rail transit door leaf anti-extrusion test tool according to claim 5 is characterized in that: The door frame (2) is provided with placement grooves (86) on both sides, and the two placement grooves (86) are respectively connected to the two limit grooves (4). The two placement grooves (86) are respectively provided with connecting pipes (87), one end of the connecting pipe (87) is fixedly connected to and connected to the first air bag (85), and the other end of the connecting pipe (87) is connected to an external air pump through an electromagnetic valve.
7. The rail transit door leaf anti-extrusion test tool according to claim 6, characterized in that: The door frame (2) is provided with a lubrication structure (9), the lubrication structure (9) mainly consisting of a box body (91), the box body (91) is fixedly connected to the upper surface of the door frame (2), and lubrication oil is provided in the box body (91).
8. The rail transit door leaf anti-extrusion test tool according to claim 7 is characterized in that: An oil pump (92) is fixedly connected to the upper surface of the door frame (2); an input end of the oil pump (92) is fixedly connected to a first oil pipe (93), the first oil pipe (93) is connected to the box body (91); an output end of the oil pump (92) is fixedly connected to a second oil pipe (94), the second oil pipe (94) is in contact with the surface of the cylinder (5).