Trolley wheel falling-off detection device

Abstract

The utility model discloses a trolley wheel falling-off detection device, which relates to the technical field of trolley wheel falling-off detection and is characterized in that the inner wall of a rotating plate is rotatably connected with a roller, the side end of the rotating plate is fixedly connected with a rotating rod, the roller is in rolling connection with a plurality of trolley wheels for detection, and the side end of the rotating rod is fixedly connected with an adjusting plate. The bottom ends of the rollers are in rolling connection with guide rails, the inner wall of an adjusting pipe is in sliding connection with an adjusting plate, the side end of the adjusting pipe is fixedly connected with a connecting shaft, the side end of the connecting shaft is fixedly connected with a matching plate, and a proximity switch is arranged at the bottom of the connecting shaft. When the trolley wheels fall off, the rollers cannot be in contact with the trolley wheels, so that the matching plate cannot rotate to the position which is located on the same horizontal plane with the axis of the proximity switch, and the proximity switch transmits an electric signal to the alarm to give an alarm if the proximity switch does not detect a signal after a set time interval. Therefore, a worker is reminded of the phenomenon that the trolley wheel falls off.

Description

Technical Field

[0001] The utility model relates to the technical field of trolley wheel falling-off detection, in particular to a trolley wheel falling-off detection device. Background Art

[0002] A trolley usually refers to a mobile work platform or mechanical equipment that can be moved in factories, warehouses, hospitals and other places to support different work processes or medical examinations. The wheels on the trolley are often used to provide support when the trolley is moving.

[0003] In the prior art, trolley wheels are often mounted on pins on the trolley. When the trolley is moving, the pins roll the trolley wheels along the track, thereby achieving the effect of the trolley moving on the track.

[0004] However, the existing trolley wheels are at risk of falling off when used for a long time. When the trolley wheels fall off, it is difficult for the staff to discover the phenomenon of the trolley wheels falling off in time, which may cause the trolley to get stuck and stop, thereby causing damage to the trolley. Utility Model Content

[0005] The purpose of the utility model is to provide a trolley wheel detachment detection device to solve the technical problem in the prior art that the existing trolley wheels are at risk of detachment when used for a long time. When the trolley wheels detach, it is difficult for the staff to discover the trolley wheel detachment in time, which causes the trolley to get stuck and stop, thereby causing damage to the trolley.

[0006] The technical problem to be solved by the present invention can be achieved through the following technical solutions:

[0007] A trolley wheel fall-off detection device, comprising:

[0008] A rotating plate, wherein the inner wall of the rotating plate is rotatably connected to a roller, a side end of the rotating plate is fixedly connected to a rotating rod, the roller is rollingly connected to a plurality of trolley wheels for detection, the side end of the rotating rod is fixedly connected to an adjustment plate, and the bottom end of the roller is rollingly connected to a guide rail;

[0009] An adjusting tube, wherein the inner wall of the adjusting tube is slidably connected to the adjusting plate, a side end of the adjusting tube is fixedly connected to a connecting shaft, and a side end of the connecting shaft is fixedly connected to a matching plate;

[0010] A proximity switch is arranged at the bottom of the connecting shaft.

[0011] As a further solution of the present invention: a support seat is provided on the outer wall of the connecting shaft, the inner wall of the support seat is rotatably connected to the connecting shaft, the bottom end of the support seat is fixedly connected to a support plate, and the side end of the proximity switch is fixedly connected to the support plate.

[0012] As a further solution of the present invention: the bottom end of the support plate is fixedly connected to a base plate, and mounting holes are respectively opened at both ends of the base plate.

[0013] As a further solution of the present invention: a sliding groove is provided inside the adjusting tube, and the inner wall of the sliding groove is slidably connected to the adjusting plate and is in abutting connection with the adjusting plate.

[0014] As a further solution of the present invention: the adjustment plate passes through the adjustment tube and is provided with a plurality of positioning holes equidistantly along the length direction. The inner walls of the positioning holes are connected to the positioning rod, and the positioning rod is connected to the top end of the adjustment tube. The outer wall of the bottom of the positioning rod is threadedly connected with a nut, and the nut is connected to the bottom end of the adjustment tube.

[0015] As a further solution of the present invention: the roller is provided with an axial hole along the axis line, the inner wall of the axial hole is rotatably connected with a pin, and both ends of the pin are fixedly connected to the rotating plate respectively.

[0016] Beneficial effects of the utility model:

[0017] 1. When the trolley rolls along the guide rail through the rotation of the trolley wheel, the guide rail provides support and guidance for the rolling of the trolley wheel. When the roller contacts the surface of the trolley wheel, the trolley wheel continues to roll, and the roller rolls along the surface of the trolley wheel. At the same time, the roller drives the rotating plate to rotate along the axis of the rotating rod. The rotating plate drives the rotating rod and the adjusting plate to rotate. The adjusting plate drives the adjusting tube and the matching plate to rotate, thereby rotating the matching plate. When the axis of the matching plate and the axis of the proximity switch are on the same horizontal plane, the proximity switch detects the matching plate. The trolley wheel has several groups. The wheels roll on the guide rails at a constant speed, and the proximity switch sets the time interval in advance. When the trolley wheel falls off, the roller cannot get contact with the trolley wheel, which causes the matching plate to be unable to rotate to a position that is on the same horizontal plane as the axis of the proximity switch. Therefore, the proximity switch cannot detect the matching plate. At this time, the proximity switch exceeds the set time interval, and the proximity switch transmits an electrical signal to the alarm of the existing technology, thereby reminding the staff that the trolley wheel has fallen off the trolley. The proximity switch realizes the effect of timely detection of the falling of the trolley wheel, thereby avoiding the accident of the trolley being stuck and stopped.

[0018] 2. When the proximity switch and the matching plate are used together for detection, the rotation of the matching plate is driven by the contact force provided by the roller and the trolley wheel. The roller rolls along the surface of the trolley wheel to drive the rotating plate to rotate, reducing the friction generated by the direct contact between the rotating plate and the trolley wheel surface for rotation, further avoiding the wear of the rotating plate caused by friction and protecting the service life of the rotating plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 3 This is the AA cross-sectional view of the overall structure of the utility model;

[0023] Figure 4 For the utility model Figure 3 A magnified schematic diagram of the structure at A;

[0024] Figure 5 This is an enlarged schematic diagram of the structure at B in FIG. 3 of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the adjustment plate of the present utility model.

[0026] In the figure: 1. rotating plate; 2. roller; 3. trolley wheel; 4. guide rail; 5. rotating rod; 6. adjusting plate; 7. adjusting tube; 8. support seat; 9. support plate; 10. bottom plate; 11. proximity switch; 12. matching plate; 13. connecting shaft; 14. mounting hole; 15. slide groove; 16. positioning hole; 17. positioning rod; 18. nut; 19. pin; 20. shaft hole. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] like Figures 1-6 As shown, a trolley wheel fall-off detection device includes: a rotating plate 1, an adjustment tube 7 and a proximity switch 11.

[0029] The inner wall of the rotating plate 1 is rotatably connected to the roller 2, the side end of the rotating plate 1 is fixedly connected to the rotating rod 5, the roller 2 is rotatably connected to several trolley wheels 3 for detection, the side end of the rotating rod 5 is fixedly connected to the adjusting plate 6, the bottom end of the roller 2 is rotatably connected to the guide rail 4, the inner wall of the adjusting tube 7 is slidably connected to the adjusting plate 6, the side end of the adjusting tube 7 is fixedly connected to the connecting shaft 13, the side end of the connecting shaft 13 is fixedly connected to the matching plate 12, and the proximity switch 11 is arranged at the bottom of the connecting shaft 13. When the trolley rolls along the guide rail 4 through the trolley wheel 3, the guide rail 4 provides support and guidance for the rolling of the trolley wheel 3. When the roller 2 and the trolley wheel 3 contact the surface, the trolley wheel 3 continues to roll, and the roller 2 rolls along the surface of the trolley wheel 3. At the same time, the roller 2 brings the rotating plate 1 to rotate along the axis of the rotating rod 5, and the rotating plate 1 drives the rotating rod 5 and the adjusting plate 6 to rotate, and the adjusting plate 6 drives the adjusting tube 7 and the matching plate 12 rotates, thereby the matching plate 12 rotates. When the axis center line of the matching plate 12 and the axis center line of the proximity switch 11 are in the same horizontal plane, the proximity switch 11 detects the matching plate 12. The trolley wheel 3 has several groups, and the trolley wheel 3 rolls on the guide rail 4 at a constant speed. The proximity switch 11 sets the time interval in advance. When the trolley wheel 3 falls off, the roller 2 cannot get the contact of the trolley wheel 3, thereby causing the matching plate 12 to be unable to rotate to a position in the same horizontal plane as the axis center line of the proximity switch 11. Therefore, the proximity switch 11 cannot detect the matching plate 12. At this time, the proximity switch 11 exceeds the set time interval, and the proximity switch 11 transmits an electrical signal to the alarm of the prior art, thereby reminding the staff that the trolley wheel 3 has fallen off on the trolley. The proximity switch 11 realizes the effect of timely detection of the falling off of the trolley wheel 3, thereby avoiding the accident of the trolley being stuck and stopped.

[0030] When the proximity switch 11 and the matching plate 12 cooperate for detection, the rotation of the matching plate 12 is provided by the contact force between the roller 2 and the trolley wheel 3. The roller 2 rolls along the surface of the trolley wheel 3 to drive the rotating plate 1 to rotate, reducing the friction generated by the direct contact between the rotating plate 1 and the surface of the trolley wheel 3 for rotation, further avoiding the influence of friction on the wear of the rotating plate 1 and protecting the service life of the rotating plate 1.

[0031] In some specific embodiments, a support seat 8 is provided on the outer wall of the connecting shaft 13, the inner wall of the support seat 8 is rotatably connected to the connecting shaft 13, the bottom end of the support seat 8 is fixedly connected to a support plate 9, and the side end of the proximity switch 11 is fixedly connected to the support plate 9. When the connecting shaft 13 rotates, the connecting shaft 13 rotates along the inner wall of the support seat 8, and the support plate 9 provides support and fixation for the connecting shaft 13 and the proximity switch 11 through the support seat 8.

[0032] In some specific embodiments, the bottom end of the support plate 9 is fixedly connected to the base plate 10, and mounting holes 14 are respectively opened at both ends of the base plate 10. When the detection device is installed, the base plate 10 is aligned with the ground or steel plate, and the bolts are passed through the mounting holes 14 and installed on the ground or steel plate, thereby fixing the base plate 10 and further fixing the support plate 9.

[0033] In some specific embodiments, a slide groove 15 is opened inside the adjustment tube 7, and the inner wall of the slide groove 15 is slidably connected to the adjustment plate 6 and is abutted against the adjustment plate 6. When the roller 2 needs to be aligned with the trolley wheel 3, the staff can control the rotating rod 5 to pull the adjustment plate 6, and the adjustment plate 6 slides along the inner wall of the slide groove 15. When the roller 2 is aligned with the trolley wheel 3, the movement of the rotating rod 5 is stopped. The abutment connection between the inner wall of the slide groove 15 and the adjustment plate 6 can ensure that the rotation of the rotating rod 5 is transmitted to the adjustment tube 7.

[0034] In some specific implementation schemes, the adjustment plate 6 passes through the adjustment tube 7 and is provided with a number of positioning holes 16 at equal intervals along the length direction. The inner wall of the positioning hole 16 is abutted against a positioning rod 17, and the positioning rod 17 is abutted against and connected to the top of the adjustment tube 7. The outer wall of the bottom of the positioning rod 17 is threadedly connected with a nut 18, and the nut 18 is abutted against and connected to the bottom end of the adjustment tube 7. When the roller 2 is aligned with the trolley wheel 3, the staff inserts the positioning rod 17 into the positioning hole 16, and then rotates and installs the nut 18 on the positioning rod 17. The positioning rod 17 and the nut 18 respectively abut against the upper and lower ends of the adjustment tube 7, thereby achieving the fixing of the positioning rod 17 in the positioning hole 16. The abutment between the positioning rod 17 and the inner wall of the positioning hole 16 provides a fixing function for the adjustment plate 6 and the adjustment tube 7. The distribution of the positioning holes 16 enables the adjustment plate 6 to be adjusted and fixed in the adjustment tube 7.

[0035] In some specific embodiments, the roller 2 is provided with an axial hole 20 along the axis, and the inner wall of the axial hole 20 is rotatably connected to a pin 19, and both ends of the pin 19 are fixedly connected to the rotating plate 1. When the roller 2 rotates, the axial hole 20 provided on the roller 2 rotates along the pin 19, and the pin 19 provides support and fixation for the roller 2.

[0036] The above describes several embodiments of the present invention in detail, but the present invention is not limited to these embodiments and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A trolley wheel fall-off detection device, characterized in that: include: A rotating plate (1), wherein the inner wall of the rotating plate (1) is rotatably connected to a roller (2), a side end of the rotating plate (1) is fixedly connected to a rotating rod (5), the roller (2) is rollingly connected to a plurality of trolley wheels (3) for detection, the side end of the rotating rod (5) is fixedly connected to an adjustment plate (6), and the bottom end of the roller (2) is rollingly connected to a guide rail (4); An adjusting tube (7), wherein the inner wall of the adjusting tube (7) is slidably connected to the adjusting plate (6), a side end of the adjusting tube (7) is fixedly connected to a connecting shaft (13), and a side end of the connecting shaft (13) is fixedly connected to a matching plate (12); A proximity switch (11) is provided at the bottom of the connecting shaft (13).

2. A trolley wheel fall-off detection device according to claim 1, characterized in that: The outer wall of the connecting shaft (13) is provided with a support seat (8), the inner wall of the support seat (8) is rotatably connected to the connecting shaft (13), the bottom end of the support seat (8) is fixedly connected to a support plate (9), and the side end of the proximity switch (11) is fixedly connected to the support plate (9).

3. A trolley wheel fall-off detection device according to claim 2, characterized in that: The bottom end of the support plate (9) is fixedly connected to a base plate (10), and mounting holes (14) are respectively provided through both ends of the base plate (10).

4. The trolley wheel fall-off detection device according to claim 1, characterized in that: A sliding groove (15) is provided inside the regulating tube (7), and the inner wall of the sliding groove (15) is slidably connected to the regulating plate (6) and is abutted against the regulating plate (6).

5. The trolley wheel fall-off detection device according to claim 1, characterized in that: The regulating plate (6) passes through the regulating tube (7) and is provided with a plurality of positioning holes (16) at equal intervals along the length direction. The inner wall of the positioning hole (16) is abutted and connected with a positioning rod (17). The positioning rod (17) is abutted and connected with the top end of the regulating tube (7). The outer wall of the bottom of the positioning rod (17) is threadedly connected with a nut (18). The nut (18) is abutted and connected with the bottom end of the regulating tube (7).

6. The trolley wheel fall-off detection device according to claim 1, characterized in that: The roller (2) is provided with an axial hole (20) when viewed along the axis, and a pin (19) is rotatably connected to the inner wall of the axial hole (20), and both ends of the pin (19) are fixedly connected to the rotating plate (1).

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