Excavator bucket tooth falling alarm device

Abstract

The utility model discloses an excavator bucket tooth falling alarm device in the technical field of excavators, which comprises an excavator bucket and a cab, a mechanical arm is connected between the excavator bucket and the cab, the bottom of the excavator bucket is connected with a plurality of bucket tooth bodies, RFID (Radio Frequency Identification Device) positioning chips are arranged in the plurality of bucket tooth bodies, and the RFID positioning chips are connected with the mechanical arm. A positioning base station, a sound-light alarm module, a display screen and a signal transmission module are installed in the cab. The RFID positioning chip, the positioning base station, the sound-light alarm module, the display screen and the signal transmission module are arranged in a matched mode, whether the bucket tooth body falls off or not is judged according to the distance between the bucket tooth body and the interior of a cab by means of the radio frequency technology principle, and when the bucket tooth body falls off, the sound-light alarm module gives a sound-light alarm to remind a driver; and meanwhile, the falling information is sent to related personnel in the form of short messages and the like through the signal transmission module, so that the related personnel can conveniently check and replace the bucket tooth body in time.

Description

Technical Field

[0001] The utility model relates to the technical field of excavators, in particular to an excavator bucket tooth falling-off alarm device. Background Art

[0002] The bucket teeth of an excavator are important parts of the excavator. They are similar to human teeth and are also vulnerable parts. They are composed of a tooth seat and a tooth tip, which are connected by a pin. Since the tooth tip is the part that fails due to wear, it is only necessary to replace the tooth tip. However, the bucket teeth are easy to fall off due to the high pressure they are subjected to during use, which makes them inconvenient to use, increases the cost of use, and reduces the efficiency of use.

[0003] Patent announcement number CN218437289U discloses an anti-drop bucket tooth assembly for an excavator, including a mounting plate, a plurality of mounting grooves are opened inside the mounting plate, and an excavator bucket tooth is installed inside the mounting grooves. Blocks are symmetrically fixedly connected in the middle of both sides of the excavator bucket tooth, and limiting grooves are symmetrically opened on both sides of the bottom of the mounting groove. The block is clamped in the limiting groove, and a fourth screw threadedly connected to the mounting plate passes through the middle of the block. A rectangular groove passing through both sides of the excavator bucket tooth is opened on the upper part of the inside, a first pin is installed on one side of the rectangular groove, and a second pin is installed on the other side of the rectangular groove. A third screw passing through the first pin and the second pin is installed on the top of the excavator bucket tooth.

[0004] Patent announcement number CN212835623U discloses an anti-falling bucket tooth assembly for excavators, which relates to the field of bucket teeth, including a bucket tooth body that can be restricted in a slot by a clamping plate, and the outside of the bucket tooth body is also restricted on the excavator bucket plate body by a fixed shell to prevent the bucket tooth body from falling off due to extrusion force; the bucket tooth body is restricted on an inner fixed plate in the fixed shell, and the fixed plate is restricted in a groove on the inner wall of the fixed shell by a limiting protrusion to prevent the bucket tooth body from falling off; the fixed shell, the bucket tooth body and the excavator bucket plate body can be quickly fixed by a first screw, and the fixed shell and the excavator bucket plate body are further fixed by a second screw, thereby achieving stable fixing of the bucket tooth body and preventing the bucket tooth body from falling off.

[0005] The above two groups of patents make bucket teeth last longer and reduce falling off by changing the structure. However, as the machine runs for a long time, the fixing parts such as screws, bolts, etc. will loosen, and the bucket teeth will loosen and fall off. It is impossible to fundamentally solve the problem of bucket teeth falling off. For actual on-site operations, ensuring that the bucket teeth do not fall off during the operation of the excavator can avoid mechanical damage, high cost of use and low efficiency. Based on this, we propose an excavator bucket tooth falling off alarm device. Utility Model Content

[0006] In order to improve the bucket teeth of the excavator mentioned above, as the machine runs for a long time, fixing parts such as screws, bolts, etc. become loose, and the bucket teeth still become loose and fall off, and the problem of bucket teeth falling off cannot be solved fundamentally, the utility model provides an excavator bucket tooth falling off alarm device.

[0007] The utility model provides an excavator bucket tooth falling alarm device, which adopts the following technical solutions:

[0008] An excavator bucket tooth falling alarm device comprises a bucket and a cab, wherein a mechanical arm is connected between the bucket and the cab, a plurality of bucket tooth bodies are connected to the bottom of the bucket, RFID positioning chips are installed inside the plurality of bucket tooth bodies, and a positioning base station, an audible and visual alarm module, a display screen and a signal transmission module are installed inside the cab respectively.

[0009] By adopting the above technical solution and utilizing the principle of radio frequency technology, the distance between the RFID positioning chip and the positioning base station is obtained to determine whether the bucket tooth body has fallen off. The display screen is used to display the distance between each RFID positioning chip and the positioning base station. When the bucket tooth body falls off, the sound and light alarm module will sound and light alarm to remind the driver. At the same time, the signal transmission module will send the shedding information to relevant personnel in the form of text messages, etc., so that relevant personnel can come to check and replace the bucket tooth body in time.

[0010] Optionally, a plurality of bucket tooth bodies are provided with a card slot, the RFID positioning chip is located inside the card slot, and a clamping assembly is provided inside the card slot.

[0011] By adopting the above technical solution, the insertion, removal and replacement of the RFID positioning chip are facilitated.

[0012] Optionally, the clamping assembly includes a shell, which is installed on the inner top wall of the slot, and both ends of the inner top wall of the shell are connected to reset springs, the bottoms of two groups of reset springs are connected to connecting blocks, the bottoms of two groups of connecting blocks are connected to movable rods, and the bottoms of the two groups of movable rods extend out of the shell and are installed with pressure plates.

[0013] By adopting the above technical solution, under the elastic force of the reset spring, the pressure plate presses on the top of the RFID positioning chip, so that the RFID positioning chip can be fixedly installed inside the card slot, preventing the RFID positioning chip from falling off during use.

[0014] Optionally, both ends of the bottom of the shell are provided with sliding holes matching with the movable rod.

[0015] By adopting the above technical solution, the movable rod can move more smoothly.

[0016] Optionally, a rubber pad is connected to the bottom of the pressing plate.

[0017] By adopting the above technical solution, the friction between the pressing plate and the RFID positioning chip is increased, so that the RFID positioning chip is pressed more firmly.

[0018] Optionally, the output end of the RFID positioning chip is electrically connected to the input end of the positioning base station, the output end of the positioning base station is electrically connected to the input end of the display screen, and the output end of the display screen is electrically connected to the input ends of the sound and light alarm module and the signal transmission module respectively.

[0019] By adopting the above technical solution and utilizing the principle of radio frequency technology, the distance between the RFID positioning chip and the positioning base station is obtained to determine whether the bucket tooth body has fallen off. The display screen is used to display the distance between each RFID positioning chip and the positioning base station. When the bucket tooth body falls off, the sound and light alarm module will sound and light alarm to remind the driver. At the same time, the signal transmission module will send the shedding information to relevant personnel in the form of text messages, etc., so that relevant personnel can come to check and replace the bucket tooth body in time.

[0020] In summary, the present invention has at least one of the following beneficial effects:

[0021] Through the coordinated setting of RFID positioning chip, positioning base station, sound and light alarm module, display screen and signal transmission module, and using the principle of radio frequency technology, the distance between the bucket tooth body and the cab is used to determine whether the bucket tooth body has fallen off. When the bucket tooth body has fallen off, the sound and light alarm module will give a sound and light alarm to remind the driver. At the same time, the signal transmission module will send the shedding information to relevant personnel in the form of text messages, etc., so that relevant personnel can come to check and replace the bucket tooth body in time.

[0022] Through the coordinated setting of the card slot and the clamping assembly, the RFID positioning chip is installed inside the card slot, which facilitates the insertion, removal and replacement of the RFID positioning chip. The RFID positioning chip is pressed and fixed by the clamping assembly to prevent the RFID positioning chip from falling off from the inside of the card slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the bucket tooth structure of the utility model;

[0026] Figure 3 For the utility model Figure 2 Schematic diagram of the structure at point A in the middle.

[0027] In the figure: 1. RFID positioning chip; 2. Positioning base station; 3. Sound and light alarm module; 4. Display screen; 5. Signal transmission module; 6. Bucket; 7. Mechanical arm; 8. Bucket tooth body; 9. Cab; 10. Card slot; 11. Clamping assembly; 1101. Shell; 1102. Return spring; 1103. Connecting block; 1104. Movable rod; 1105. Pressing plate; 12. Rubber pad. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-3 The utility model is described in further detail.

[0029] Please refer to the attached figure in the instruction manual Figure 1 and Figure 2 The utility model provides an embodiment: an excavator bucket tooth falling alarm device, including a bucket 6 and a cab 9, a mechanical arm 7 is connected between the bucket 6 and the cab 9, a plurality of bucket tooth bodies 8 are connected to the bottom of the bucket 6, a plurality of bucket tooth bodies 8 are installed with RFID positioning chips 1 inside, a plurality of bucket tooth bodies 8 are provided with card slots 10, the RFID positioning chip 1 is located inside the card slots 10, and a clamping assembly 11 is provided inside the card slots 10. It is convenient to insert, remove and replace the RFID positioning chip 1.

[0030] Please refer to the attached figure in the instruction manual Figure 2 and Figure 3 The clamping assembly 11 includes a housing 1101, which is mounted on the inner top wall of the card slot 10. Both ends of the inner top wall of the housing 1101 are connected to return springs 1102. The bottoms of the two groups of return springs 1102 are connected to connecting blocks 1103. The bottoms of the two groups of connecting blocks 1103 are connected to movable rods 1104. The bottoms of the two groups of movable rods 1104 extend out of the housing 1101 and are mounted with a pressing plate 1105. Under the elastic force of the return spring 1102, the pressing plate 1105 presses on the top of the RFID positioning chip 1, so that the RFID positioning chip 1 can be fixedly installed inside the card slot 10 to prevent the RFID positioning chip 1 from falling off during use.

[0031] Please refer to the attached figure in the instruction manual Figure 3Both ends of the bottom of the housing 1101 are provided with sliding holes that match the movable rod 1104. This makes the movable rod 1104 move more smoothly. The bottom of the pressing plate 1105 is connected with a rubber pad 12. This increases the friction between the pressing plate 1105 and the RFID positioning chip 1, so that the RFID positioning chip 1 is pressed more firmly.

[0032] Please refer to the attached figure in the instruction manual Figure 1 The interior of the cab 9 is respectively equipped with a positioning base station 2, an audible and visual alarm module 3, a display screen 4 and a signal transmission module 5. The output end of the RFID positioning chip 1 is electrically connected to the input end of the positioning base station 2, the output end of the positioning base station 2 is electrically connected to the input end of the display screen 4, and the output end of the display screen 4 is electrically connected to the input ends of the audible and visual alarm module 3 and the signal transmission module 5. The principle of radio frequency technology is used to obtain the distance between the RFID positioning chip 1 and the positioning base station 2 to determine whether the bucket tooth body 8 is off. The display screen 4 is used to display the distance between each RFID positioning chip 1 and the positioning base station 2. When the bucket tooth body 8 is off, the audible and visual alarm module 3 sounds and lights an alarm to remind the driver, and at the same time, the signal transmission module 5 sends the off information to relevant personnel in the form of text messages, etc., so that relevant personnel can come to check and replace the bucket tooth body 8 in time.

[0033] Working principle: When in use, install the corresponding bucket tooth body 8 at the bottom of the bucket 6 as required, and then insert the RFID positioning chip 1 into the slot 10 on the bucket tooth body 8. Before the RFID positioning chip 1 is inserted into the slot 10, pull the pressure plate 1105 upward, and the pressure plate 1105 drives the connecting block 1103 to move upward through the movable rod 1104 and compresses the reset spring 1102. When the RFID positioning chip 1 is inserted into the slot 10, release the pressure plate 1105. Under the elastic force of the reset spring 1102, the connecting block 1103 rebounds and drives the pressure plate 1105 to press on the top of the RFID positioning chip 1 through the movable rod 1104, so that the RFID positioning chip 1 can be fixed inside the slot 10 to prevent the RFID positioning chip 1 from falling off.

[0034] By using the principle of radio frequency technology, the distance between the RFID positioning chip 1 and the positioning base station 2 is obtained to determine whether the bucket tooth body 8 has fallen off. The display screen 4 is used to display the distance between each RFID positioning chip 1 and the positioning base station 2. When the bucket tooth body 8 falls off, the sound and light alarm module 3 will sound and light alarm to remind the driver, so that the driver can know that the bucket tooth body 8 has fallen off in the first time, thereby avoiding the situation of operation without the bucket tooth body 8. At the same time, the signal transmission module 5 will send the shedding information to relevant personnel in the form of text messages, etc., so that relevant personnel can come to check and replace the bucket tooth body 8 in time.

[0035] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An excavator bucket tooth falling alarm device, comprising a bucket (6) and a cab (9), a mechanical arm (7) connected between the bucket (6) and the cab (9), and a plurality of bucket tooth bodies (8) connected to the bottom of the bucket (6), characterized in that: A plurality of bucket tooth bodies (8) are each installed with an RFID positioning chip (1), and a positioning base station (2), an audible and visual alarm module (3), a display screen (4), and a signal transmission module (5) are respectively installed inside the cab (9).

2. The excavator bucket tooth falling alarm device according to claim 1, characterized in that: A plurality of bucket tooth bodies (8) are each provided with a card slot (10), the RFID positioning chip (1) is located inside the card slot (10), and a clamping assembly (11) is provided inside the card slot (10).

3. The excavator bucket tooth falling alarm device according to claim 2, characterized in that: The clamping assembly (11) comprises a shell (1101), the shell (1101) being mounted on the inner top wall of the slot (10), both ends of the inner top wall of the shell (1101) being connected to return springs (1102), the bottoms of two groups of return springs (1102) being connected to connecting blocks (1103), the bottoms of two groups of connecting blocks (1103) being connected to movable rods (1104), and the bottoms of the two groups of movable rods (1104) extending out of the shell (1101) and being mounted with pressure plates (1105).

4. The excavator bucket tooth falling alarm device according to claim 3, characterized in that: Both ends of the bottom of the housing (1101) are provided with sliding holes that match the movable rod (1104).

5. The excavator bucket tooth falling alarm device according to claim 3 is characterized in that: The bottom of the pressing plate (1105) is connected to a rubber pad (12).

6. The excavator bucket tooth falling alarm device according to claim 1, characterized in that: The output end of the RFID positioning chip (1) is electrically connected to the input end of the positioning base station (2), the output end of the positioning base station (2) is electrically connected to the input end of the display screen (4), and the output end of the display screen (4) is electrically connected to the input ends of the sound and light alarm module (3) and the signal transmission module (5), respectively.

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