A continuous detection system for a gas alarm

Abstract

The application discloses a continuous detection system for a gas alarm, which comprises a workbench, a feeding device, a sound detection device, a sensitivity detection device, a discharging device and a conveying device. The gas alarm is fixed through the positioning plate and the quick locking device, so that deviation of the gas alarm is prevented during conveying. Meanwhile, the quick locking device can be smoothly opened and closed by the grabbing device, so that the gas alarm is smoothly grabbed.

Description

Technical Field

[0001] This invention belongs to the technical field of gas alarm detection equipment, specifically relating to a continuous detection system for gas alarms. Background Technology

[0002] Chinese Utility Model Application No. 201721753719.8 discloses a suction cup feeding mechanism and an automatic feeding machine, including a module mounting plate, a linear module mounted on the module mounting plate, and a feeding device disposed below the linear module. The feeding device includes a feeding cylinder and a feeding suction cup assembly connected below the feeding cylinder. The feeding suction cup assembly picks up material from a material tray, and the linear module drives the feeding suction cup assembly to move to the production line and release the material. This patent's suction cup feeding mechanism has a simple structure, high feeding efficiency, can replace manual operation, improve work efficiency, reduce labor intensity, reduce production costs, and avoid errors. However, this patent is only effective when the material is not fixed. When the material is prone to sliding on the tray and needs to be fixed to the tray, this patent is ineffective and cannot remove the material from the tray. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: how to grab a gas alarm when it is fixed in place. To solve the above problem, a continuous detection system for gas alarms is provided.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is implemented in the following manner:

[0005] A continuous detection system for gas alarms includes a workbench, a feeding device, a sound detection device, a sensitivity detection device, a discharging device, and a conveying device. The conveying device includes a main conveying device and a secondary conveying device. The main conveying device includes a conveyor belt and a positioning plate disposed on the conveyor belt. The positioning plate has a groove, and quick-locking devices are provided on both sides of the groove. The quick-locking devices can fix the gas alarm in the groove. Power supply devices are provided on both sides of the main conveying device to power the gas alarm. The main conveying device and the secondary conveying device are both fixedly connected to the workbench. The secondary conveying device is disposed to the side of the feeding device. The feeding device, the sound detection device, the sensitivity detection device, and the discharging device are sequentially mounted above the main conveying device. A vision sensor a is mounted above the feeding device. The feeding device includes a three-axis cantilever module a and a gripping device a connected to the working axis of the three-axis cantilever module a. The lower end of the three-axis cantilever module a is fixedly connected to a bracket a, and the bracket a is fixedly connected to the workbench.

[0006] The gripping device a includes a cylinder a, a plate a, and cylinders b fixedly connected to both sides of the plate a. The lower end of the connecting plate is fixedly connected to the upper side of the plate a. The plate b is located on the lower side of the plate a. The plate a and the plate b are fixedly connected by a support column. The telescopic shaft of the cylinder b passes through the plate a and the plate b downwards. The upper side of the plate b is fixedly connected to the cylinder a. The telescopic shaft of the cylinder a passes through the plate b downwards. A suction cup is provided at the top of the telescopic shaft of the cylinder a.

[0007] The three-axis cantilever module a includes a Z-axis module that enables the gripping device a to move up and down. The Z-axis module is the working axis and includes a slider that can move up and down. The slider is fixedly connected to a connecting plate, and the lower end of the connecting plate is fixedly connected to the gripping device a.

[0008] Guide posts are fixedly connected to both sides of the suction cup. The guide posts pass through the plate b and are slidably connected to the plate b. Guide sleeves are fixedly connected to both sides of the lower end of the plate b. The telescopic shaft of the cylinder b passes through the guide sleeves and points downward.

[0009] The power supply device is provided with a wire groove a, and a groove is provided on the inner side of the power supply device. The wire groove a is connected to the groove. A conductive block is provided in the groove. A wire a is provided in the wire groove a and the wire a is connected to the conductive block.

[0010] The positioning plate includes an upper plate and a lower plate. The upper plate is fixedly connected to the top of the lower plate. Conductive strips are provided on both the left and right sides of the lower plate. A wire groove b is provided on the lower plate. A probe and a wire b electrically connected to the probe are provided in the wire groove b. The wire b is electrically connected to the conductive strip. A groove is provided on the upper plate. The position of the groove corresponds to the position of the probe. Quick locking devices are provided on both sides of the groove. A label groove is provided on the upper plate. A label is placed in the label groove. A power supply device is hinged to one end of the conductive block. A limiting hole is provided on the other end of the conductive block. A limiting post is provided in the limiting hole. The limiting post is fixedly connected to the power supply device. A spring is provided between the conductive block and the inner side of the groove.

[0011] The sound detection device includes a three-axis cantilever module b and a pressure head fixedly connected to the three-axis cantilever module b. The lower end of the three-axis cantilever module b is fixedly connected to a bracket b, which is fixedly connected to the worktable. A sound sensor is installed on the side of the bracket b, and a vision sensor b is installed above the sound detection device.

[0012] The sensitivity detection device includes a detection box, which is set on a workbench. The detection box has lids on both the front and rear sides, which seal the box. A gas supply port is located on the left side wall of the detection box and is connected to a gas supply device. A gas detection port is located on the right side wall of the detection box and is connected to a gas concentration detection device. The upper wall of the detection box is transparent. A support frame is mounted on top of the detection box, and a visual sensor c is installed at the lower end of the support frame. The visual sensor c can detect whether the alarm indicator light on the gas alarm is lit.

[0013] The cover includes a cover plate, a limiting plate slidably connected to the cover plate, and a cylinder. The limiting plate is fixedly connected to both sides of the front end of the test box. A guide groove is provided on the limiting plate. Guide columns are fixedly connected to both sides of the cover plate. The guide columns slide in the guide groove. One end of the cylinder is hinged to the front end of the test box. The other end of the cylinder is connected to the cover plate. A fan is provided inside the test box.

[0014] At least two sensitivity detection devices are provided.

[0015] The unloading device includes a three-axis gantry module and a gripping device b fixedly connected to the working axis of the three-axis gantry module. A bracket c is fixedly connected to the lower end of the three-axis gantry module. The bracket c is fixedly connected to the workbench. A shelf is provided on the outside of the unloading device and fixedly connected to the workbench. The shelf is used to place unqualified gas alarms. A vision sensor d is installed above the unloading device.

[0016] Compared with the prior art, the present invention has the following advantages: The present invention fixes the gas alarm by setting a positioning plate and a quick locking device, preventing the gas alarm from shifting during the transportation process; at the same time, the gripping device can smoothly open and close the quick locking device, ensuring the smooth gripping of the gas alarm. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a view from one perspective of the feeding device.

[0019] Figure 3 This is another view of the feeding device.

[0020] Figure 4 This is a view from one perspective of the sound detection device.

[0021] Figure 5 This is another perspective view of the sound detection device.

[0022] Figure 6 This is a view from one perspective of the feeding device.

[0023] Figure 7 This is another perspective view of the feeding device.

[0024] Figure 8 This is a schematic diagram of the gripping device a.

[0025] Figure 9 This is a schematic diagram of the power supply device.

[0026] Figure 10 This is a schematic diagram of the structure of wire groove a.

[0027] Figure 11 This is a schematic diagram of the lower plate structure.

[0028] Figure 12 This is a schematic diagram of the positioning plate structure.

[0029] Figure 13 This is a schematic diagram of the structure of the conductive block.

[0030] Figure 14 This is a view from one perspective of the sensitivity detection device.

[0031] Figure 15 This is another perspective view of the sensitivity detection device.

[0032] Figure 16 This is a schematic diagram of the box lid.

[0033] Among them, 1 is the secondary conveying device; 2 is the workbench; 3 is the shelf; 4 is the unloading device; 5 is the sensitivity detection device; 6 is the sound detection device; 7 is the main conveying device; 8 is the loading device; 9 is the bracket a; 10 is the Y-axis module; 11 is the X-axis module; 12 is the Z-axis module; 13 is the connecting plate; 14 is the cylinder a; 15 is the suction cup; 16 is the quick locking device; 17 is the positioning plate; 18 is the gas alarm; 19 is the bracket b; 20 is the three-axis cantilever module b; 21 is the sound sensor; 22 is the pressure head; 23 is the three-axis gantry module; 24 is the gripping device b; 25 is the bracket c; 26 is the groove; 27 is the cylinder b; 28 is the plate a; 29 is the support column. 30 is the guide sleeve; 31 is the guide post; 32 is the flat plate b; 33 is the vision sensor a; 34 is the vision sensor b; 35 is the vision sensor d; 36 is the power supply device; 37 is the conductive block; 38 is the wire groove a; 39 is the lower plate; 40 is the wire groove b; 41 is the conductive strip; 42 is the probe; 43 is the upper plate; 44 is the label groove; 45 is the spring; 46 is the limiting post; 47 is the limiting hole; 48 is the wire a; 49 is the support frame; 50 is the vision sensor c; 51 is the detection box; 52 is the gas concentration detection device; 53 is the gas supply port; 54 is the fan; 55 is the cover plate; 56 is the gas detection port; 57 is the cylinder; 58 is the limiting plate; 59 is the guide groove. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention. Therefore, the following detailed description of the embodiments of this invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0035] In the description of this invention, it should be understood that if directional descriptions are involved, such as up, down, front, back, left, right, etc., indicating the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0036] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0037] The present invention will now be further described in conjunction with the embodiments and accompanying drawings:

[0038] like Figures 1-16As shown, a continuous detection system for gas alarms includes a workbench 2, a feeding device 8, a sound detection device 6, a sensitivity detection device 5, a discharging device 4, and a conveying device. The conveying device includes a main conveying device 7 and a secondary conveying device 1. The main conveying device 7 includes a conveyor belt and a positioning plate 17 mounted on the conveyor belt. The positioning plate 17 has a groove 26, and quick-locking devices 16 are provided on both sides of the groove 26. The quick-locking devices 16 can fix the gas alarm 18 within the groove 26. Power supply devices 36 are provided on both sides of the main conveying device 7 to power the gas alarm 18. To prevent the gas alarm 18 from moving on the positioning plate 17, the quick-locking devices 16 are used for fixation to prevent movement of the gas alarm 18 during the conveyor belt's movement, which could affect subsequent processes related to the gas alarm 18. Both the main conveying device 7 and the secondary conveying device 1 are fixedly connected to the workbench 2, with the secondary conveying device 1 located to the side of the feeding device 8. The feeding device 8 picks up the gas alarm 18 from the secondary conveying device 1 and then places it on the main conveying device 7. A vision sensor a33 is mounted above the feeding device 8. The feeding device 8, the sound detection device 6, the sensitivity detection device 5, and the unloading device 4 are sequentially mounted above the main conveying device 7 to facilitate the operation of the gas alarm 18 on the main conveying device 7 by the feeding device 8, the sound detection device 6, the sensitivity detection device 5, and the unloading device 4.

[0039] The feeding device 8 includes a three-axis cantilever module a and a gripping device a connected to the working axis of the three-axis cantilever module a. The main conveying device 7 is used to move the gas alarm 18. The gripping device a can grip the gas alarm 18 under the drive of the three-axis cantilever module a. The lower end of the three-axis cantilever module a is fixedly connected to the bracket a9, and the bracket a9 is fixedly connected to the worktable 2. The three-axis cantilever module a is a module capable of moving in three-dimensional space. It includes an X-axis module 11, a Y-axis module 10, and a Z-axis module 12 capable of moving the gripping device a up and down. The Z-axis module 12 is the working axis. The Y-axis module 10 is fixedly connected to the bracket a9. The X-axis module 11 is set on the Y-axis module 10, and the Z-axis module 12 is set on the X-axis module 11. The Y-axis module 10 drives the X-axis module 11 to move left and right, and the X-axis module 11 drives the Z-axis module 12 to move forward. The Z-axis module 12 includes a slider that can move up and down. A connecting plate 13 is fixedly connected to the slider, and the lower end of the connecting plate 13 is fixedly connected to the gripping device a.

[0040] like Figure 8As shown, the gripping device a includes a cylinder a14, a plate a28, and cylinders b27 fixedly connected to both sides of the plate a28. There is one cylinder b27 on each side of the plate a28. The lower end of the connecting plate 13 is fixedly connected to the upper side of the plate a28. A plate b32 is provided on the lower side of the plate a28. The plate a28 and plate b32 are fixedly connected by a support column 29. The length of the support column 29 is greater than or equal to the main body length of the cylinder a14. The telescopic shaft of the cylinder b27 passes through the plate a28 and plate b32 downwards. The upper side of the plate b32 is fixedly connected to the cylinder a14. The telescopic shaft of the cylinder a14 passes through the plate b32 downwards. A suction cup 15 is provided at the top of the telescopic shaft of the cylinder a14. The suction cup 15 can adsorb the gas alarm 18, ensuring that the gas alarm 18 can move with the three-axis cantilever module a.

[0041] Guide posts 31 are fixedly connected to both sides of the suction cup 15. The guide posts 31 pass through the plate b32 and are slidably connected to the plate b32. Guide sleeves 30 are fixedly connected to both sides of the lower end of the plate b32, and the telescopic shaft of the cylinder b27 passes through the guide sleeves 30 downwards. The guide posts 31 can ensure the stability of the suction cup 15 during its rising and falling, thereby ensuring the stability of the adsorption. At the same time, the guide sleeves 30 have the same effect as the guide posts 31, ensuring the stability of the telescopic shaft of the cylinder b27 during its rising and falling.

[0042] like Figures 9-13 As shown, the power supply device 36 is located on both sides of the positioning plate 17. A wire groove a38 is provided on the power supply device 36, and a groove is provided on the inner side of the power supply device 36. A conductive block 37 is placed in the groove. The wire groove a38 connects to the groove, and a wire a48 is placed inside the wire groove a38. The wire a48 connects the conductive block 37 to an external power source. The power supply device 36, located on both sides of the positioning plate 17, is connected to the neutral wire and the live wire respectively, forming a complete power circuit to ensure that the positioning plate 17 can be energized.

[0043] The positioning plate 17 includes an upper plate 43 and a lower plate 39. The upper plate 43 is fixedly connected to the upper part of the lower plate 39. Conductive strips 41 are provided on both sides of the lower plate 39, and the conductive block 37 can just contact the conductive strips 41 to conduct electricity. A wire groove b40 is provided on the lower plate 39. A probe 42 and a wire b electrically connected to the probe 42 are provided in the wire groove b40. The wire b is electrically connected to the conductive strip 41. A groove 26 is provided on the upper plate 43. The position of the groove 26 corresponds to the position of the probe 42. Quick locking devices 16 are provided on both sides of the groove 26. The probe 42 has two needles, which are connected to the neutral wire and the live wire, respectively. When the product is placed in the groove 26, the probe 42 can connect the internal circuit of the product, so that the product is energized. If the product is normal, the power indicator light will light up. The quick locking device 16 can fix the product in the groove 26 to prevent the product from shaking from side to side during movement, thus affecting the quality of the product.

[0044] Driven by the conveyor belt, the positioning plate 17 moves in the middle of the power supply device 36. The conductive block 37 contacts the conductive strip 41, forming a complete power circuit and ensuring that the positioning plate 17 is energized. Multiple conductive blocks 37 are installed on the power supply device 36, and the distance between each conductive block 37 should be less than the length of the conductive strip 41. This ensures that the positioning plate 17 remains energized regardless of its movement.

[0045] A label slot 44 is provided on the upper plate 43, and a label is placed in the label slot 44. The label records the position information of the corresponding groove 26. When the system detects a problem with the product in the groove 26, such as the product's power indicator light not illuminating when it is powered on, the system will identify the power indicator light and the label information, and then record the problem in the corresponding product in the groove 26. In subsequent processes, the product with the problem will be selected out.

[0046] like Figure 13 As shown, the conductive block 37 is located within the groove of the power supply device 36. One end of the conductive block 37 is hinged to the power supply device 36 within the groove, and the other end of the conductive block 37 is provided with a limiting hole 47. A limiting post 46 is provided within the limiting hole 47, and the two ends of the limiting post 46 are fixedly connected to the upper and lower ends of the groove of the power supply device 36. A spring 45 is provided inside the groove of the conductive block 37. The spring 45 ensures that the conductive block 37 is always in an outward pop-out state, which ensures better contact between the conductive block 37 and the conductive strip 41. At the same time, the limiting post 46 prevents the conductive block 37 from protruding too much outward, thus affecting the normal movement of the positioning plate 17.

[0047] The sound detection device 6 includes a three-axis cantilever module b20 and a pressure head 22 fixedly connected to the working axis of the three-axis cantilever module b20. The pressure head 22 can move up and down on the working axis. A bracket b19 is fixedly connected to the lower end of the three-axis cantilever module b20. The bracket b19 is fixedly connected to the worktable 2. A sound sensor 21 is installed on the side of the bracket b19. When the working axis moves, the pressure head 22 can press the self-test button on the gas alarm 18. If the gas alarm 18 sounds and is received by the sound sensor 21, then the gas alarm 18 is qualified; if the gas alarm 18 does not sound and is not received by the sound sensor 21, then the gas alarm 18 is unqualified. A vision sensor b34 is mounted above the sound detection device 6.

[0048] like Figures 14-16As shown, the sensitivity testing device 5 includes a testing box 51, which is mounted on the workbench 2. The gas alarm is electrically connected to a power supply device. Both the front and rear sides of the testing box 51 have lids. When the main conveyor 7 delivers the positioning plate 17 to the front of the testing box 51, the front lid is opened, the main conveyor 7 delivers the positioning plate 17 into the testing box 51, the front lid is closed, and testing is performed. After testing, the rear lid is opened, and the positioning plate 17 is removed from the testing box 51 for the next process, thus completing the gas alarm testing. The lids are sealed to the testing box 51, ensuring that the introduced gas does not leak out, guaranteeing the airtightness of the testing box 51, and the accuracy of the test results. A gas supply port 53 is provided on the left side wall of the detection box 51. The gas supply port 53 is connected to a gas supply device through a hose. A gas detection port 56 is provided on the right side wall of the detection box 51. The gas detection port 56 is connected to a gas concentration detection device 51 through a hose. The upper wall of the detection box 51 is a transparent wall. A support frame 49 is installed on the top of the detection box 51. A visual sensor c50 is installed at the lower end of the support frame 49. The visual sensor c50 can detect whether the alarm indicator light on the gas alarm is lit.

[0049] The gas supply device can provide gases including but not limited to methane and propane. At the same time, the gas concentration detection device 51 can also detect various gases provided by the gas supply device and accurately provide the concentration of the detected gas.

[0050] The test chamber cover includes a cover plate 55, a limiting plate 58 slidably connected to the cover plate 55, and a cylinder 57. The limiting plate 58 is fixedly connected to both sides of the front end of the test chamber 51. A guide groove 59 is provided on the limiting plate 58. Guide posts are fixedly connected to both sides of the cover plate 55. The guide posts slide within the guide grooves 59. Bearings can be installed at the outer ends of the guide posts, and the bearings slide within the guide grooves 59, thus reducing friction between the guide posts and the guide grooves 59. One end of the cylinder 57, which has a telescopic rod, is hinged to the front end of the test chamber 51. The other end of the cylinder 57 is connected to the cover plate 55. Multiple fans 54 are installed inside the test chamber 51. The fans 54 blow the gas inside the test chamber 51, further making the distribution of the gas to be tested within the test chamber 51 more uniform and improving the accuracy of the test.

[0051] The cylinder 57 on the front side of the test box 51 pulls the cover plate 55 upward, opening the front cover plate 55 of the test box 51. Then, the positioning plate 17 with a gas alarm, which is conveyed from the front process by the main conveyor device 7, enters the test box 51. After the positioning plate 17 is fully inside the test box 51, the front cover of the test box 51 is closed, forming a sealed space inside the test box 51.

[0052] Gas is then introduced into the testing chamber 51, the fan 54 starts, and the gas concentration detection device 51 begins to detect the concentration of the introduced gas. When the gas concentration reaches a certain value, the gas supply device stops supplying gas. At this time, the vision sensor c50 identifies which gas alarm indicator lights are lit. Then, the rear cover of the testing chamber 51 is opened, and the gas alarms on the positioning plate 17 are transferred to the next process. The next process, based on the location information of the unqualified gas alarms identified by the vision sensor c50, removes the gas alarms whose alarm indicator lights are not lit, leaving the qualified gas alarms.

[0053] One or more sensitivity detection devices 5 may be provided. Using one sensitivity detection device 5 facilitates testing the sensitivity of the gas alarm 18 to a single gas. Using multiple sensitivity detection devices 5 allows for sequential testing of the gas alarm 18's sensitivity to multiple gases. Using only one sensitivity detection device 5 to test the gas alarm 18's sensitivity to multiple gases avoids frequent changes in gas types, thus improving detection efficiency. The sensitivity detection device 5 detects whether the gas alarm 18 sounds an alarm when gas is introduced into a sealed chamber and the gas concentration reaches a certain value.

[0054] The unloading device 4 includes a three-axis gantry module 23 and a gripping device b24 fixedly connected to the working axis of the three-axis gantry module 23. The gripping device b24 can move up and down on the working axis of the three-axis gantry module 23. The gripping device b24 has the same structure as the gripping device a and can achieve the same effect. A vision sensor d35 is mounted on top of the unloading device 4. A bracket c25 is fixedly connected to the lower end of the three-axis gantry module 23. The bracket c25 is fixedly connected to the worktable 2. A shelf 3 is set on the outside of the unloading device 4 and is fixedly connected to the worktable 2. The shelf 3 is used to place defective gas alarms 18. The shelf 3 has multiple separated areas, each with a rotatable roller. Each separated area is used to place gas alarms 18 with different reasons for defection. Meanwhile, the outer side of the shelf 3 is tilted downwards at a certain angle. When the gripping device b24 places a defective gas alarm 18 into the shelf 3, the gas alarm 18 can move downwards due to the tilt of the roller and shelf 3, and then move upwards one after another. This facilitates the later collection of defective gas alarms 18 and also makes it easier to detect the specific reasons for the gas alarm 18's failure, thus improving efficiency. Vision sensors a33, b34, and d35 are all used to detect the position of the gas alarm and the position of its button, preparing for gripping.

[0055] The working process of this invention is as follows:

[0056] When the gas alarm 18 to be tested moves from the secondary conveyor 1, the feeding device 8 grabs the gas alarm 18 and moves it to the positioning plate 17 of the main conveyor 7, while simultaneously fixing the gas alarm 18 securely. Then, the main conveyor 7 moves the gas alarm 18 to the sound detection device 6. The sound detection device 6 presses the self-test button through the pressure head 22, and the sound sensor 21 receives the sound signal. Then, it starts to detect whether each gas alarm 18 can complete the self-test and emits a buzzer. After that, the main conveyor 7 moves the gas alarm 18 to the sensitivity detection device 5. The sensitivity detection device 5 is a device that detects the sensitivity of the gas alarm 18 to the gas. When a certain concentration of gas is introduced, it starts to detect whether the gas alarm 18 emits a buzzer. Then, the main conveyor 7 moves the gas alarm 18 to the unloading device 4. The unloading device 4 can place the unqualified gas alarm 18 into the corresponding unqualified area in the shelf 3 according to the test results of the previous process, that is, classify and place gas alarms 18 with the same condition for easy maintenance later. The positions of the sound detection device 6 and the sensitivity detection device 5 are interchangeable and do not affect the detection effect.

[0057] ① When the feeding device 8 picks up the gas alarm 18 from the secondary conveying device 1, the suction cup 15 on the picking device a can directly adsorb the gas alarm 18. Then the three-axis cantilever module a moves to move the picked-up gas alarm 18 to the corresponding position on the positioning plate 17. The slider and the telescopic shaft of the cylinder a14 move downwards at the same time. After moving a certain distance and correctly placing the gas alarm 18 into the groove 26, the telescopic shaft of the cylinder b27 moves downwards and presses the quick locking device 16 until the quick locking device 16 fixes the gas alarm 18. Then the telescopic shaft of the cylinder b27 moves upwards, the suction cup 15 closes and no longer adsorbs the gas alarm 18. Then the slider and the telescopic shaft of the cylinder a14 move upwards at the same time.

[0058] ② The process of the unloading device 4 grabbing the gas alarm 18 from the main conveying device 7 and placing it into the shelf 3 is completely opposite to the process of the loading device 8 grabbing the gas alarm 18 from the secondary conveying device 1 and placing it into the main conveying device 7, and will not be described in detail here.

[0059] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present invention, and these should also be considered within the scope of protection of the present invention.

Claims

1. A continuous detection system for a gas alarm, comprising a workbench (2), a feeding device (8), a sound detection device (6), a sensitivity detection device (5), a discharging device (4), and a conveying device, characterized in that, The conveying device includes a main conveying device (7) and a secondary conveying device (1). The main conveying device (7) includes a conveyor belt and a positioning plate (17) set on the conveyor belt. A groove (26) is provided on the positioning plate (17). A quick-locking device (16) is provided on both sides of the groove (26). The quick-locking device (16) can fix the gas alarm (18) in the groove (26). Power supply devices (36) are provided on both sides of the main conveying device (7). The power supply devices (36) can provide power to the gas alarm (18). The main conveying device (7) and the secondary conveying device (1) 1) All are fixedly connected to the workbench (2). The secondary conveying device (1) is set on the side of the feeding device (8). The feeding device (8), sound detection device (6), sensitivity detection device (5) and unloading device (4) are sequentially mounted above the main conveying device (7). A vision sensor a (33) is mounted above the feeding device (8). The feeding device (8) includes a three-axis cantilever module a and a gripping device a connected to the working axis of the three-axis cantilever module a. The lower end of the three-axis cantilever module a is fixedly connected to a bracket a (9). The bracket a (9) is fixedly connected to the workbench (2). The three-axis cantilever module a includes a Z-axis module (12) that enables the gripping device a to move up and down. The Z-axis module (12) is the working axis. The Z-axis module (12) includes a slider that can move up and down in the Z-axis module (12). The slider is fixedly connected to a connecting plate (13). The lower end of the connecting plate (13) is fixedly connected to the gripping device a. The gripping device a includes a cylinder a (14), a plate a (28), and cylinders b (27) fixedly connected to both sides of the plate a (28). The lower end of the connecting plate (13) is fixedly connected to the upper side of the plate a (28). A plate b (32) is provided on the lower side of the plate a (28). The plate a (28) and the plate b (32) are fixedly connected by a support column (29). The telescopic shaft of the cylinder b (27) passes through the plate a (28) and the plate b (32) downwards. The upper side of the plate b (32) is fixedly connected to the cylinder a (14). The telescopic shaft of the cylinder a (14) passes through the plate b (32) downwards. A suction cup (15) is provided at the top of the telescopic shaft of the cylinder a (14). Guide posts (31) are fixedly connected to both sides of the suction cup (15). The guide posts (31) pass through the plate b (32). The guide posts (31) and the plate b (32) are slidably connected. Guide sleeves (30) are fixedly connected to both sides of the lower end of the plate b (32). The telescopic shaft of the cylinder b (27) passes through the guide sleeves (30) and goes downward. The unloading device (4) includes a three-axis gantry module (23) and a gripping device b (24) fixedly connected to the working axis of the three-axis gantry module (23). The gripping device can smoothly open and close the quick-locking device; The power supply device (36) is provided with a wire groove a (38), and the inner side of the power supply device (36) is provided with a groove. The wire groove a (38) is connected to the groove. A conductive block (37) is provided in the groove. A wire a (48) is provided in the wire groove a (38). The wire a (48) is connected to the conductive block (37). The positioning plate (17) includes an upper plate (43) and a lower plate (39). The upper plate (43) is fixedly connected to the upper part of the lower plate (39). Conductive strips (41) are provided on both the left and right sides of the lower plate (39). A wire groove b (40) is provided on the lower plate (39). A probe (42) and a wire b electrically connected to the probe (42) are provided in the wire groove b (40). The wire b is electrically connected to the conductive strip (41). A groove (26) is provided on the upper plate (43). The position of the groove (26) is relative to the probe (42). 2) Corresponding to the position, quick locking devices (16) are provided on both sides of the groove (26), and a label groove (44) is provided on the upper plate (43), and a label is provided in the label groove (44); one end of the conductive block (37) is hinged to the power supply device (36), and a limiting hole (47) is provided on the other end of the conductive block (37), and a limiting post (46) is provided in the limiting hole (47), and the limiting post (46) is fixedly connected to the power supply device (36). A spring (45) is provided between the conductive block (37) and the inner side of the groove.

2. The continuous detection system for a gas alarm according to claim 1, characterized in that, The sound detection device (6) includes a three-axis cantilever module b (20) and a pressure head (22) fixedly connected to the three-axis cantilever module b (20). The lower end of the three-axis cantilever module b (20) is fixedly connected to a bracket b (19). The bracket b (19) is fixedly connected to the workbench (2). A sound sensor (21) is provided on the side of the bracket b (19). A visual sensor b (34) is mounted above the sound detection device (6).

3. The continuous detection system for a gas alarm according to claim 1, characterized in that, The sensitivity detection device (5) includes a detection box (51), which is set on the workbench (2). The front and rear sides of the detection box (51) are provided with box covers, which are sealed to the detection box (51). The left side wall of the detection box (51) is provided with a gas supply port (53), which is connected to a gas supply device. The right side wall of the detection box (51) is provided with a gas detection port (56), which is connected to a gas concentration detection device (52). The upper wall of the detection box (51) is a transparent wall. A support frame (49) is erected above the detection box (51). A visual sensor c (50) is set at the lower end of the support frame (49). The visual sensor c (50) can detect whether the alarm indicator light on the gas alarm is lit. The cover includes a cover plate (55), a limiting plate (58) slidably connected to the cover plate (55), and a cylinder (57). The limiting plate (58) is fixedly connected to both sides of the front end of the test box (51). A guide groove (59) is provided on the limiting plate (58). Guide columns are fixedly connected to both sides of the cover plate (55). The guide columns slide in the guide groove (59). One end of the cylinder (57) is hinged to the front end of the test box (51). The other end of the cylinder (57) is connected to the cover plate (55). A fan (54) is provided inside the test box (51).

4. A continuous detection system for a gas alarm according to claim 3, characterized in that, At least two of the sensitivity detection devices (5) are provided.

5. A continuous detection system for a gas alarm according to claim 1, characterized in that, The lower end of the three-axis gantry module (23) of the unloading device (4) is fixedly connected to the bracket c (25), the bracket c (25) is fixedly connected to the workbench (2), the unloading device (4) is provided with a shelf (3), the shelf (3) is fixedly connected to the workbench (2), the shelf (3) is used to place unqualified gas alarms (18), and a visual sensor d (35) is installed above the unloading device (4).

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