Elevator door mechanical strength inspection device

Abstract

The utility model relates to an elevator door mechanical strength inspection device, and aims to solve the problems that the shape of a current detection head is fixed, so that the strength inspection of collision of objects with different shapes on an elevator door cannot be simulated, the accuracy of the strength inspection of the elevator door is reduced, the deformation degree of the inspected elevator door cannot be visually observed, and the inspection cost is reduced. The device comprises a base, a fixing plate is installed on one side of the top of the base, an adjusting mechanism is installed on the fixing plate, an electric hydraulic cylinder is installed on the adjusting mechanism, and an inspection mechanism is installed at the driving end of the electric hydraulic cylinder. According to the utility model, collision with the elevator door in different shapes is simulated to detect the strength of the elevator door, the strength detection accuracy of the elevator door is further improved, the deformation degree of the elevator door can be visually observed, and the deformation distance of the elevator door can be rapidly measured according to the scale marks.

Description

Technical Field

[0001] This utility model relates to the field of elevator door strength testing, specifically an elevator door mechanical strength testing device. Background Technology

[0002] Elevator doors are a very important part of an elevator. There are two types of doors: the one that can be seen from the outside of the elevator and is fixed to each floor is called the hall door, and the one that can be seen from the inside of the elevator and is fixed to the car and moves with the car is called the car door.

[0003] According to the published patent CN218212410U, an elevator door mechanical strength testing device includes a base. The upper surface of the base is respectively provided with a positioning mechanism and a pressurizing mechanism. The positioning mechanism includes a positioning frame rotatably disposed on the upper surface of the base, and the interior of the positioning frame has an insertion slot through one side of the positioning frame for inserting an elevator door. The lower surface of the positioning frame is provided with a positioning component. In the process of realizing this utility model, the inventor found that at least the following problems in the prior art have not been solved. The problem of not being able to flexibly change the test point is solved by rotating the first motor and the second motor to drive the first lead screw and the second lead screw to rotate respectively. In use, the traditional detection head has a fixed shape, which makes it impossible to simulate the strength test of elevator doors colliding with objects of different shapes, thereby reducing the accuracy of elevator door strength test. Moreover, it is not possible to intuitively observe the degree of deformation of the elevator door after the test, and it is not convenient to measure the degree of deformation of the elevator door. Therefore, a new technical solution needs to be designed to solve this problem. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide an elevator door mechanical strength testing device to solve the technical problems of the current fixed shape of the detection head, which makes it impossible to simulate the strength test of elevator doors by colliding with objects of different shapes, thereby reducing the accuracy of elevator door strength testing, and also making it impossible to intuitively observe the degree of deformation of the elevator door after testing, and making it inconvenient to measure the degree of deformation of the elevator door.

[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: An elevator door mechanical strength testing device is designed, including a base. A fixed plate is installed on one side of the top of the base. An adjustment mechanism is installed on the fixed plate. An electric hydraulic cylinder is installed on the adjustment mechanism. A testing mechanism is installed on the drive end of the electric hydraulic cylinder. The testing mechanism includes a connecting frame installed on the drive end of the electric hydraulic cylinder, a connecting groove on the connecting frame, a connecting disc rotatably connected in the connecting groove, and multiple detection heads of different shapes installed on the outside of the connecting disc. A positioning frame is installed on the top side of the base away from the fixed plate. An insertion groove is opened on the positioning frame. Sliding rods are fixedly connected to the four corners of the end of the positioning frame away from the fixed plate. A limiting plate is fixedly connected between the four sliding rods. A push plate is slidably sleeved between the four sliding rods on the side of the limiting plate away from the positioning frame. Multiple connecting holes are opened on the limiting plate, and multiple detection rods movably pass through each of the multiple connecting holes. A support plate is fixedly connected to the bottom of the limiting plate, and scale lines are engraved on the surface of the support plate.

[0006] Preferably, the adjusting mechanism includes a groove with a fixed plate on one side, a slider slidably connected in the groove, and a first lead screw rotatably connected between the upper and lower sides of the inner cavity of the groove. The slider is helically sleeved on the outside of the first lead screw. An adjusting plate is fixedly connected to the slider. An adjusting groove is opened at one end of the adjusting plate, an adjusting block is slidably connected in the adjusting groove, and a second lead screw rotatably connected between the left and right sides of the inner cavity of the adjusting groove. The adjusting block is helically sleeved on the outside of the second lead screw and connected to an electric hydraulic cylinder. A first drive motor and a second drive motor are installed on the top of the fixed plate and one side of the adjusting plate, respectively.

[0007] Preferably, guide grooves are provided on both sides of the detection rod, and guide blocks are fixedly connected to both sides of the inner cavity of the connecting hole.

[0008] Preferably, a T-shaped rod is slidably passed through one end of the outer side of the connecting frame, and multiple insertion holes are opened at the end of the connecting plate near the T-shaped rod, and the multiple insertion holes correspond to multiple detection heads of different shapes.

[0009] Preferably, a spring is sleeved on the outside of the T-shaped rod on the outer side of the connecting frame, and the two ends of the spring are fixedly connected to the head of the T-shaped rod and the connecting frame, respectively.

[0010] Preferably, the T-shaped rod corresponds to the socket, and the size of the socket is adapted to the size of the T-shaped rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention combines a positioning frame, a plug-in slot, a connecting plate, an electric hydraulic cylinder, detection heads of different shapes, a push plate, a sliding rod, a limit plate, a detection rod, and scale lines. By rotating the connecting plate, different shaped detection heads are aligned with the elevator door, thus simulating collisions between different shapes and the elevator door to test its strength, further improving the accuracy of elevator door strength testing. When the elevator door deforms during testing, it pushes the detection rod to move, allowing for a direct observation of the degree of deformation based on the position of the moving detection rod. Simultaneously, by moving the push plate to contact the detection rod with the largest displacement distance, the distance of the elevator door deformation can be quickly measured according to the scale line corresponding to the push plate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a top view of the connection between the positioning frame and the slide bar of this utility model;

[0015] Figure 3 This is a top view of the connection between the connecting frame and the connecting plate of this utility model;

[0016] Figure 4 This is a side view of the limiting plate of this utility model;

[0017] In the diagram: 1. Base; 2. Fixing plate; 3. First drive motor; 31. Slide groove; 32. First lead screw; 33. Slider; 34. Adjusting block; 35. Adjusting plate; 36. Second drive motor; 37. Second lead screw; 38. Adjusting groove; 4. Connecting frame; 41. Connecting plate; 42. Detection head; 43. Connecting groove; 5. Positioning frame; 51. Insertion groove; 6. Slide rod; 61. Limiting plate; 62. Detection rod; 63. Push plate; 64. Support plate; 65. Scale line; 66. Connecting hole; 7. Guide groove; 71. Guide block; 8. T-shaped rod; 81. Spring; 9. Electric hydraulic cylinder. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Example 1: A mechanical strength testing device for elevator doors, see [link / reference] Figures 1 to 4The system includes a base 1, a fixed plate 2 mounted on one side of the top of the base 1, an adjustment mechanism mounted on the fixed plate 2, an electric hydraulic cylinder 9 mounted on the adjustment mechanism, and an inspection mechanism mounted on the drive end of the electric hydraulic cylinder 9. The inspection mechanism includes a connecting frame 4 mounted on the drive end of the electric hydraulic cylinder 9, a connecting groove 43 on the connecting frame 4, a connecting plate 41 rotatably connected in the connecting groove 43, and multiple detection heads 42 of different shapes mounted on the outside of the connecting plate 41. A positioning frame 5 is mounted on the top of the base 1 away from the fixed plate 2. The positioning frame 5 has an insertion groove 51. Slide rods 6 are fixedly connected to the four corners of the end of the positioning frame 5 away from the fixed plate 2. A limit plate 61 is fixedly connected between the four slide rods 6. A push plate 63 is slidably sleeved between the four slide rods 6 on the side of the limit plate 61 away from the positioning frame 5. Multiple connecting holes 66 are opened on the limit plate 61, and multiple detection rods 62 are movably inserted through each of the multiple connecting holes 66. A support plate 64 is fixedly connected to the bottom of the positioning plate 61. The surface of the support plate 64 is engraved with scale lines 65. The elevator door to be inspected is inserted into the insertion slot 51 in the positioning frame 5. Then, the push plate 63 is pushed to make the detection rod 62 contact the elevator door. Then, the electric hydraulic cylinder 9 is activated to push the connecting plate 41 to move so that the detection head 42 contacts the elevator door to perform elevator door strength testing. When the elevator door deforms during the inspection, it will push the detection rod 62 to move. The degree of elevator door deformation can be directly observed according to the position of the detection rod 62. At the same time, by moving the push plate 63 to contact the detection rod 62 with the largest displacement distance, the distance of elevator door deformation can be quickly measured according to the scale line 65 corresponding to the push plate 63. Then, by rotating the connecting plate 41, detection heads 42 of different shapes are matched with the elevator door, thereby simulating collisions between different shapes and the elevator door to test the strength of the elevator door, further improving the accuracy of elevator door strength testing.

[0020] For details, see Figure 1The adjustment mechanism includes a groove 31 with a fixed plate 2 on one side. A slider 33 is slidably connected in the groove 31, and a first lead screw 32 is rotatably connected between the upper and lower sides of the inner cavity of the groove 31. The slider 33 is helically sleeved on the outside of the first lead screw 32. An adjustment plate 35 is fixedly connected to the slider 33. An adjustment groove 38 is opened at one end of the adjustment plate 35. An adjustment block 34 is slidably connected in the adjustment groove 38, and a second lead screw 37 is rotatably connected between the left and right sides of the inner cavity of the adjustment groove 38. The adjustment block 34 is helically sleeved on the outside of the second lead screw 37, and the adjustment block 34 is connected to the electric hydraulic... The pressure cylinder 9 is connected, and the top of the fixed plate 2 and one side of the adjusting plate 35 are respectively equipped with a first drive motor 3 and a second drive motor 36. By starting the first drive motor 3, the first lead screw 32 is driven to rotate, and the slider 33 is guided to move in the slide groove 31, thereby adjusting the position of the detection head 42 up and down. Then, starting the second drive motor 36 can drive the second lead screw 37 to rotate, and the adjusting block 34 is guided to move in the adjusting groove 38, thereby adjusting the position of the detection head 42 back and forth, so that the detection head 42 can be used to perform strength testing on different positions of the elevator door.

[0021] Further, see Figure 2 and Figure 4 The detection rod 62 has guide grooves 7 on both sides, and guide blocks 71 are fixedly connected to both sides of the inner cavity of the connecting hole 66. The rod can slide on the guide blocks 71 through the guide grooves 7. Since the length of the guide grooves 7 is fixed, it can ensure that multiple detection rods 62 contact the elevator door to be inspected at the same time and accurately, thereby improving the deformation effect during elevator door inspection.

[0022] It is worth noting that, see Figure 1 and Figure 3 A T-shaped rod 8 slides through one end of the outer side of the connecting frame 4. The connecting plate 41 has multiple insertion holes near the end of the T-shaped rod 8, and the multiple insertion holes correspond to multiple detection heads 42 of different shapes. The T-shaped rod 8 corresponds to the insertion holes, and the size of the insertion holes is adapted to the size of the T-shaped rod 8. By inserting the T-shaped rod 8 into the insertion hole, the rotating connecting plate 41 can be limited, thereby preventing the detection head 42 from rotating and affecting the elevator door inspection effect during use.

[0023] It is worth noting that, see Figure 3 A spring 81 is sleeved on the outside of the T-shaped rod 8 on the outside of the connecting frame 4. The two ends of the spring 81 are fixedly connected to the head of the T-shaped rod 8 and the connecting frame 4, respectively. Since the spring 81 is always in a stretched state, the spring 81 always has tension, which can stably insert the T-shaped rod 8 into the socket, thereby preventing the T-shaped rod 8 from falling out of the socket and affecting the stability of the positioning of the connecting plate 41.

[0024] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0025] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A mechanical strength testing device for elevator doors, comprising a base (1), characterized in that, A fixing plate (2) is installed on one side of the top of the base (1). An adjustment mechanism is installed on the fixing plate (2). An electric hydraulic cylinder (9) is installed on the adjustment mechanism. An inspection mechanism is installed on the drive end of the electric hydraulic cylinder (9). The inspection mechanism includes a connecting frame (4) installed on the drive end of the electric hydraulic cylinder (9), a connecting groove (43) opened on the connecting frame (4), a connecting plate (41) rotatably connected in the connecting groove (43), and multiple detection heads (42) of different shapes installed on the outside of the connecting plate (41). A positioning frame (5) is installed on the top of the base (1) away from the fixed plate (2). The positioning frame (5) has a slot (51). Slide rods (6) are fixedly connected to the four corners of the end of the positioning frame (5) away from the fixed plate (2). A limiting plate (61) is fixedly connected between the four slide rods (6). A push plate (63) is slidably sleeved between the four slide rods (6) on the side of the limiting plate (61) away from the positioning frame (5). Multiple connecting holes (66) are opened on the limiting plate (61), and multiple detection rods (62) are movably inserted into the multiple connecting holes (66). A support plate (64) is fixedly connected to the bottom of the limiting plate (61). The surface of the support plate (64) is engraved with scale lines (65).

2. The elevator door mechanical strength testing device as described in claim 1, characterized in that, The adjustment mechanism includes a slide groove (31) with a fixed plate (2) on one side. A slider (33) is slidably connected in the slide groove (31). A first lead screw (32) is rotatably connected between the upper and lower sides of the inner cavity of the slide groove (31). The slider (33) is spirally sleeved on the outside of the first lead screw (32). An adjustment plate (35) is fixedly connected to the slider (33). An adjustment groove (38) is opened at one end of the adjustment plate (35). An adjustment block (34) is slidably connected in the adjustment groove (38). A second lead screw (37) is rotatably connected between the left and right sides of the inner cavity of the adjustment groove (38). The adjustment block (34) is spirally sleeved on the outside of the second lead screw (37). The adjustment block (34) is connected to an electric hydraulic cylinder (9). A first drive motor (3) and a second drive motor (36) are installed on the top of the fixed plate (2) and one side of the adjustment plate (35).

3. The elevator door mechanical strength testing device as described in claim 1, characterized in that, Guide grooves (7) are provided on both sides of the detection rod (62), and guide blocks (71) are fixedly connected to both sides of the inner cavity of the connecting hole (66).

4. The elevator door mechanical strength testing device as described in claim 1, characterized in that, A T-shaped rod (8) slides through one end of the outer side of the connecting frame (4), and the connecting plate (41) has multiple insertion holes at one end near the T-shaped rod (8), and the multiple insertion holes correspond to multiple detection heads (42) of different shapes.

5. The elevator door mechanical strength testing device as described in claim 4, characterized in that, A spring (81) is sleeved on the outside of the T-shaped rod (8) on the outside of the connecting frame (4). The two ends of the spring (81) are fixedly connected to the head of the T-shaped rod (8) and the connecting frame (4), respectively.

6. The elevator door mechanical strength testing device as described in claim 4, characterized in that, The T-shaped rod (8) corresponds to the socket, and the size of the socket is adapted to the size of the T-shaped rod (8).

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