Detection device for vacuum cleaner

Abstract

The present invention discloses a detection device for a vacuum cleaner, aiming to provide a detection device for a vacuum cleaner that can be adjusted according to the suction power of the vacuum cleaner. The device comprises a housing, a sealing plate, and a telescopic mechanism. The housing is provided with a channel, the sealing plate is connected to the end face of the housing, the sealing plate is provided with an air outlet, the telescopic mechanism is placed in the channel, the telescopic mechanism matches the channel, one end of the telescopic mechanism is connected to the sealing plate, the air outlet is connected to the telescopic mechanism, an adjustment slot is provided on the housing, an adjustment rod is provided in the adjustment slot, a spring is provided on the adjustment rod, one end of the spring is connected to the adjustment rod, and the other end of the spring is connected to the bottom surface of the telescopic mechanism. The beneficial effects of the present invention are: achieving the goal of adjusting the device according to the suction power of the vacuum cleaner, improving the stability of the connection, making the extrusion plate more firmly fix the vacuum cleaner, improving the airtightness of the device, and making it more convenient to observe and detect whether it is qualified.

Description

Technical Field

[0001] The present invention relates to the technical field related to production detection equipment, and in particular to a detection device for a vacuum cleaner. Background Art

[0002] Vacuum cleaners are used to absorb dust from spaces and surfaces to achieve the purpose of cleaning. Vacuum cleaners can be divided into vertical, horizontal and portable types according to their structure. The working principle of a vacuum cleaner is to use an electric motor to drive the blades to rotate at high speed, generating air negative pressure in the sealed shell, sucking air from the suction port, so that the dust box produces a certain vacuum. The dust enters the dust filter bag in the dust box through the floor brush, connecting pipe, handle, hose, and main suction pipe, and the dust is retained in the dust filter bag. The suction power of the vacuum cleaner determines the vacuum cleaner's ability to absorb dust and other foreign matter. Therefore, the suction power of the vacuum cleaner needs to be tested before the vacuum cleaner leaves the factory. However, the vacuum cleaner detection devices under the existing technology are mostly bulky, and during the detection process, the vacuum cleaner detection device cannot be adjusted according to the suction power of the vacuum cleaner after debugging, resulting in the inability to meet the detection requirements of vacuum cleaners with different suction powers.

[0003] China Patent Authorization Announcement No.: CN213544027U, authorization announcement date November 4, 2020, discloses a suction detection device for vacuum cleaner processing, including a support column, characterized in that: a vertical plate is provided at the top of the support column, a display screen is provided on the right side of the vertical plate, fixed sleeve rods are provided at the upper and lower ends of the left side of the vertical plate, a telescopic sleeve rod is provided on the left side of the fixed sleeve rod, an arc-shaped connecting plate is provided between the two groups of telescopic sleeve rods, a fixed rod is provided on the side where the two groups of fixed sleeve rods are close to each other, a rotating plate is provided on the left side of the fixed rod, and the rotating plate and the fixed rod are connected A rotating shaft is provided at the connection point, a connecting rod is provided on the left side of the rotating plate, the side of the connecting rod not connected to the rotating plate is fixedly connected to the right side of the arc-shaped connecting plate, a pressing block is provided on the right side of the rotating plate, a pressure sensor is provided on the side where the two sets of fixed sleeves are close to each other, an additional plate is provided on the end where the two sets of fixed sleeves are separated from each other, a horizontal plate is provided on the left side of the additional plate, a rubber plate is provided on the side where the two sets of horizontal plates are close to each other, and a threaded extrusion rod is provided on the side where the rubber plates are separated from each other, a rotating fixed cover is provided on the left side of the horizontal plate, and a connecting rotating shaft is provided at the connection between the rotating fixed cover and the horizontal plate. The disadvantage of this utility model is that it cannot meet the detection requirements of vacuum cleaners with different suction powers. Summary of the Invention

[0004] The present invention aims to overcome the insufficiency of the prior art in detecting vacuum cleaners having different suction powers, and provides a detection device for vacuum cleaners which can be adjusted according to the suction power of the vacuum cleaners.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A detection device for a vacuum cleaner comprises a shell, a sealing plate and a telescopic mechanism, wherein a channel is provided in the shell, the sealing plate is connected to the top end of the shell, an air exhaust port is provided on the sealing plate, the telescopic mechanism is placed in the channel, the telescopic mechanism matches the channel, the telescopic mechanism is connected to the sealing plate, the air exhaust port is communicated with the telescopic mechanism, an adjustment slot is provided on the shell, an adjustment rod is provided in the adjustment slot, a spring is provided on the adjustment rod, one end of the spring is connected to the adjustment rod, and the other end of the spring is connected to the telescopic mechanism.

[0007] The shell supports and protects the device, and a channel is provided on the shell, which passes through the two end faces. The sealing plate is connected to the shell and closes one end face of the shell. An air exhaust port is provided on the sealing plate, and the air exhaust port passes through the sealing plate and corresponds to the channel of the shell. The sealing plate is sealed and connected to the end face of the shell. A telescopic mechanism is provided in the channel, and the shape of the telescopic mechanism matches the shape of the channel. The telescopic mechanism can move up and down in the channel. One end of the telescopic mechanism is connected to the sealing plate to form a closed space in the channel of the shell. A spring is provided on the telescopic mechanism to provide rebound force. One end of the spring is connected to the telescopic mechanism. An adjustment slot is provided on the side of the shell, and the position of the adjustment slot is close to the lower end. When adjusting An adjustment rod is provided on the node slot, which is connected to the adjustment slot. The other end of the spring is connected to the adjustment rod. The working hole of the vacuum cleaner is placed on the sealing plate to correspond to the exhaust port, and the two are sealed and connected. After placement, a closed space is formed inside the detection device. Then the vacuum cleaner works, and the air is extracted outward by the exhaust, which causes the pressure inside the detection device to decrease. Under the action of the pressure, the telescopic mechanism moves upward. A spring is installed on the telescopic mechanism, which provides a reaction force. The telescopic mechanism will only move to the specified position when the suction force generated by the vacuum cleaner is greater than the tension of the spring. During the test, the position of the adjustment rod in the adjustment slot can be moved to change the tension of the spring, thereby adapting to different vacuum cleaner suction forces. This design achieves the purpose of adjusting according to the suction force of the vacuum cleaner.

[0008] Preferably, a limit block is provided at the top of the shell, the limit block is in a U-shape, the cross-section of the limit block is in an L-shape, the side of the limit block is connected to the outer side of the shell, and the sealing plate is placed between the bottom surface of the limit block and the top of the shell. The structure of the shell is square, and the structure of the channel is also square, which can better seal the sealing plate and the telescopic mechanism. A limit plate is provided at the top of the shell, the limit plate is in a U-shape, the cross-section of the limit plate is in an L-shape, the side of the L-shape is connected to the shell, the bottom plate of the side of the limit plate is parallel to the top of the shell, and a gap is formed between the inner side of the bottom plate of the limit plate and the top of the shell, the spacing of the gap matches the height of the sealing plate, and the sealing plate can be pushed from the open end into the gap formed by the limit plate and the shell. Such a design can improve the stability of the connection.

[0009] Preferably, an extrusion plate is provided on the outer shell, and the extrusion plate includes a long side, a short side and a bottom side, the bottom side is placed above the sealing plate and parallel to the sealing plate, one end of the short side is connected to one end of the bottom side, the other end of the short side is placed between the sealing plate and the bottom side, one end of the long side is connected to the other end of the bottom plate, a rotating shaft is provided on the inner side surface of the long side, and the rotating shaft is rotatably connected to the limit block, a fixing groove is provided on the outer shell, and a rotating block is provided on the fixing groove, the rotating block is square in shape, the rotating block is rotatably connected to the fixing groove, and a limiting groove is provided on the inner side surface of the other end of the long side, and the limiting groove matches the rotating block. An extrusion plate is installed on the shell, and the extrusion plate includes a long side, a short side and a bottom side. A rotating shaft is installed on the long side, which is connected to the side of the limit block through the rotating shaft. The top end of the long side is connected to the bottom side, and the other end of the bottom side is connected to one end of the short side. The other end of the short side is in contact with the sealing plate, and two are installed. In this way, the vacuum cleaner can be squeezed and fixed by the extrusion plate, and a fixing groove is provided on the shell. The shape of the fixing groove is square. A rotating block is installed on the fixing groove. The shape of the rotating block is also square. The length of the fixing groove can meet the rotation of the rotating block. A fixing groove is opened on the extrusion plate. The position of the fixing groove corresponds to the rotating block. The rotating block rotates to rotate the top end into the fixing groove to fix the extrusion plate, so that the extrusion plate fixes the vacuum cleaner more firmly.

[0010] Preferably, the telescopic mechanism includes a bottom plate and a sealing bag, one end of the sealing bag is connected to the bottom plate, the other end of the sealing bag is connected to the sealing plate, the sealing bag is communicated with the exhaust port, and the bottom plate matches the channel. The telescopic mechanism includes a bottom plate and a sealing bag, the bottom plate is connected to one end of the sealing bag, the other end of the sealing bag is connected to the sealing plate, the sealing bag is sealed to both the bottom plate and the sealing plate, the end of the sealing bag connected to the sealing plate is open, and the open end of the sealing bag corresponds to the vent of the sealing plate, so that a closed space can be formed by the sealing plate. Such a design can improve the airtightness of the device.

[0011] Preferably, a guide plate is provided on the bottom plate, the position of the guide plate corresponds to the position of the rotating block up and down, the guide plate is connected to the bottom plate, and a guide groove is provided on the guide plate, and the guide groove includes an arc groove and a vertical groove, one end of the arc groove is communicated with the top of the guide plate and is placed on the side away from the shell, the other end of the arc groove is communicated with one end of the vertical groove, the other end of the vertical groove is communicated with the bottom surface of the guide plate, and the vertical groove is placed on the side close to the shell, and a rotating rod is provided on the rotating block, and the rotating rod is connected to the rotating block, and the rotating rod is located at one of the right angle points of the rotating block, and the guide groove matches the rotating rod. The guide plates are located on both side surfaces of the bottom plate and correspond to the position of the rotating block up and down. The guide plates are connected to the bottom plate. The guide plates are composed of two plates, which can guide the rotating block to pass when the telescopic mechanism moves, and a guide groove is opened on the guide plate. The guide groove is opened on the inner side of the guide plate. A rotating rod is provided at the top of the rotating block, and the rotating rod is connected to the rotating block. The shape of the guide groove is consistent with the motion trajectory of the rotating rod. When the bottom plate moves to the rotating block, the rotating block enters the guide groove, and the rotating rod of the rotating block enters the guide groove and rotates following the shape of the guide groove. The rotating fast plate can be rotated until the side is parallel to the extrusion plate. At this time, the long side of the extrusion plate is not subjected to force and is in a relaxed state. At this time, the vacuum cleaner can be removed. After removing the vacuum cleaner, the telescopic mechanism moves downward, so that the rotating plate can be reset. Such a design can more conveniently observe and detect whether it is qualified.

[0012] Preferably, the base plate is provided with four hooks 1, the springs are provided with four hooks 1 and correspond one to one with the hooks 1, the hooks 1 are connected to the bottom surface of the base plate, and the four hooks 1 correspond one to one with the four side surfaces of the shell, two of the corresponding side surfaces of the shell are provided with hooks 2 on the inner wall, the hooks 1 are connected to the hooks 2 via springs, the adjustment slots are located on the remaining two corresponding side surfaces of the shell, and the adjustment rods are connected to the hooks 1 via springs. The base plate of the telescopic mechanism is connected to the springs, the base plate is provided with hooks 1, the hooks 1 are semicircular, both ends of the hooks 1 are connected to the base plate, and the springs are connected to the hooks 1, a plurality of hooks 1 are installed on the base plate, the plurality of hooks 1 are distributed in a square pattern and correspond to the side surfaces of the shell, two of the opposite side surfaces are provided with hooks 2, the hooks 2 are connected to one end of the springs, the adjustment slots are located on the other two side surfaces of the shell, and the adjustment rods are installed on the adjustment slots, and the adjustment rods are also connected to the springs. This design can achieve the effect of providing minimum tension while adjusting the spring tension, balancing the telescopic mechanism, and facilitating installation.

[0013] Preferably, the adjustment groove includes a connecting groove, a sliding groove and a limiting groove. The sliding groove is V-shaped. There are several sliding grooves and limiting grooves. The sliding grooves and limiting grooves are in one-to-one correspondence. The connecting groove is vertically placed on the shell. The sliding grooves are evenly distributed on one side of the connecting groove. One end of the sliding groove is connected to the connecting groove, and the other end of the sliding groove is connected to the limiting groove. The limiting groove is placed above the sliding groove. The opened adjustment groove is divided into three parts. Each sliding groove is connected by a connecting groove. The connected sliding groove can adjust the height of the spring. The sliding groove is V-shaped. One end of the V is connected to the connecting groove, and the other end is connected to the fixed groove. The V-shaped structure prevents the adjustment rod from sliding into the connecting groove. After the spring is stressed, it will slide into the fixed groove. When adjusting the spring, you only need to slide the adjustment rod into the corresponding fixed groove. Such a design can make the adjustment process simpler.

[0014] Preferably, the adjustment rod includes a sliding rod, a baffle, a hook three and a handle. The sliding rod is placed in the adjustment slot and is slidably connected to the adjustment slot. The baffle is installed on the left and right ends of the sliding rod. The baffle is placed on both sides of the adjustment slot. The hook three is installed on the baffle inside the adjustment slot. The hook three is connected to the spring. The handle is installed on the baffle outside the adjustment slot and is coaxial with the sliding rod. The adjustment rod exists to better adjust the spring. The adjustment rod is divided into four parts. The sliding rod passes through the adjustment slot and is slidably connected to the sliding slot. Baffles are provided on the sliding rod. The baffles are placed on both sides of the adjustment slot to prevent the adjustment rod from sliding out of the adjustment slot. A portion of the sliding rod extends out. The extended portion can be used to adjust the adjustment rod by hand. A hook three is provided on the inner baffle. The hook three is connected to the spring. A handle is provided on the baffle outside the sliding slot. The handle can make the adjustment rod more convenient when adjusting. Such a design can make the adjustment rod more stable when adjusting.

[0015] Preferably, the bottom plate is provided with a telescopic rod, the telescopic rod being placed in the sealing bag, the telescopic rod comprising a plurality of short rods, the short rods being arranged in an X shape and hinged together sequentially from top to bottom, one end of the telescopic rod being connected to the bottom plate, the other end of the telescopic rod being connected to the sealing plate, the sealing bag being provided with two pressure strips, the lower end of the sealing bag being connected to the bottom plate via one pressure strip, and the upper end of the sealing bag being connected to the sealing plate via the other pressure strip. The telescopic rod is mounted on the bottom plate, the telescopic rod comprising a plurality of short rods, each two short rods being connected in an X shape, the ends of each two short rods being hinged to the ends of the next X-shaped short rod, the connected telescopic rod being able to extend and retract, one end of the telescopic rod being connected to the bottom plate, the other end being connected to the sealing plate, and the telescopic rod being located inside the sealing bag to ensure that the sealing bag does not fit tightly, so as to better detect the suction force of the vacuum cleaner, the two ends of the sealing bag being compressed by pressure strips, and the compressed sealing bag improving the airtightness, such a design can improve the movement stability of the telescopic mechanism.

[0016] Preferably, the bottom end of the housing is provided with a fixed flange, which is connected to the bottom end of the housing and has a threaded hole. A fixed flange is provided on the bottom surface of the housing, which is connected to the bottom end of the housing. After connection, a threaded hole is provided on the fixed flange for fixing the device. The structure of the fixed flange leaves the bottom end unobstructed, allowing parts such as springs to be installed from the bottom of the housing during installation, making installation more convenient.

[0017] The beneficial effects of the present invention are: the device can be adjusted according to the suction force of the vacuum cleaner, the stability of the connection is improved, the extrusion plate fixes the vacuum cleaner more firmly, the air tightness of the device is improved, it is more convenient to observe and detect whether it is qualified, the telescopic mechanism is balanced and the installation is simple, making the adjustment process simpler, the adjustment rod is more stable during adjustment, the movement stability of the telescopic mechanism is improved, and the installation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 yes Figure 1 sectional view of

[0020] Figure 3 yes Figure 1 A schematic diagram of the structure of the middle shell and the rotating block;

[0021] Figure 4 yes Figure 3 A partial enlarged view of point B in the middle;

[0022] Figure 5 yes Figure 1 Structural diagram of the telescopic mechanism;

[0023] Figure 6 yes Figure 5 A partial enlarged view of point A in the middle;

[0024] Figure 7 yes Figure 2 Schematic diagram of the structure of the rotating block;

[0025] Figure 8 yes Figure 1 Schematic diagram of the structure of the middle extruded plate;

[0026] Figure 9 yes Figure 1 Schematic diagram of the structure of the middle adjustment rod.

[0027] In the figure: 1. Shell; 11. Adjustment slot; 12. Fixed flange; 13. Fixed slot; 14. Limit block; 15. Threaded hole; 16. Hook 2; 17. Connecting slot; 18. Sliding slot; 19. Limiting slot; 2. Extrusion plate; 21. Long side; 22. Bottom side; 23. Short side; 24. Limiting slot; 25. Rotating shaft; 3. Sealing plate; 31. Exhaust port; 4. Telescopic mechanism; 41. Bottom plate; 42. Sealing bag; 43. Telescopic rod; 431. Short rod; 44. Pressing strip; 45. Hook 1; 46. Guide plate; 47. Guide slot; 48. Arc slot; 49. Vertical slot; 5. Adjustment rod; 51. Sliding rod; 52. Baffle; 53. Hook 3; 54. Handle; 6. Rotating block; 61. Rotating rod; 7. Spring; 8. Channel. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1 、 Figure 2 In the embodiment shown, a detection device for a vacuum cleaner includes a housing 1, a sealing plate 3 and a telescopic mechanism 4. The housing 1 is provided with a channel 8, the sealing plate 3 is connected to the end face of the housing 1, an air outlet 31 is provided in the sealing plate 3, the telescopic mechanism 4 is placed in the channel 8, the telescopic mechanism 4 matches the channel 8, the telescopic mechanism 4 is connected to the sealing plate 3, the air outlet 31 is communicated with the telescopic mechanism 4, an adjustment slot 11 is provided in the housing 1, an adjustment rod 5 is provided on the adjustment slot 11, a spring 7 is provided on the adjustment rod 5, one end of the spring 7 is connected to the adjustment rod 5, and the other end of the spring 7 is connected to the telescopic mechanism 4.

[0030] like Figure 3 As shown, a limit block 14 is provided at the top of the housing 1. The limit block 14 is U-shaped, and its cross section is L-shaped. The side of the limit block 14 is connected to the outer side of the housing 1, and the sealing plate 3 is placed between the bottom surface of the limit block 14 and the top of the housing 1. Figure 8As shown, the housing 1 is provided with an extrusion plate 2, which includes a long side 21, a short side 23 and a bottom side 22. The bottom side 22 is placed above the sealing plate 3 and parallel to the sealing plate 3. One end of the short side 23 is connected to one end of the bottom side 22, and the other end of the short side 23 is placed between the sealing plate 3 and the bottom side 22. One end of the long side 21 is connected to the other end of the bottom plate 41. A rotating shaft 25 is provided on the inner side surface of the long side 21. The rotating shaft 25 is rotatably connected to the limit block 14. A fixing groove 13 is provided on the housing 1, as shown in FIG. Figure 4 、 Figure 7 As shown, a rotating block 6 is provided on the fixed groove 13. The rotating block 6 is square in shape and is rotatably connected to the fixed groove 13. A limiting groove 24 is provided on the inner side surface of the other end of the long side 21. The limiting groove 24 matches the rotating block 6.

[0031] like Figure 5 As shown, the telescopic mechanism 4 includes a bottom plate 41 and a sealing bag 42. One end of the sealing bag 42 is connected to the bottom plate 41, and the other end of the sealing bag 42 is connected to the sealing plate 3. The sealing bag 42 is connected to the air outlet 31, and the bottom plate 41 matches the channel 8. Figure 6 As shown, a guide plate 46 is provided on the bottom plate 41, and the position of the guide plate 46 corresponds to the position of the rotating block 6 up and down. The guide plate 46 is connected to the bottom plate 41, and a guide groove 47 is provided on the guide plate 46. The guide groove 47 includes an arcuate groove 48 and a vertical groove 49. One end of the arcuate groove 48 is communicated with the top of the guide plate 46 and is placed on the side away from the shell 1, and the other end of the arcuate groove 48 is communicated with one end of the vertical groove 49, and the other end of the vertical groove 49 is communicated with the bottom surface of the guide plate 46. The vertical groove 49 is placed on the side close to the shell 1, and a rotating rod 61 is provided on the rotating block 6. The rotating rod 61 is connected to the rotating block 6, and the rotating rod 61 is located at one of the right angles of the rotating block 6, and the guide groove 47 matches the rotating rod 61.

[0032] like Figure 5 As shown, four hooks 45 are provided on the base plate 41, there are four springs 7 and they correspond one-to-one with the hooks 45, the hook 1 45 is connected to the bottom surface of the base plate 41 and the four hooks 45 correspond one-to-one with the four side surfaces of the housing 1, two of the corresponding side inner walls of the housing 1 are provided with a hook 2 16, the hook 1 45 is connected to the hook 2 16 through the spring 7, the adjustment slot 11 is placed on the remaining two corresponding side surfaces of the housing 1, and the adjustment rod 5 is connected to the hook 1 45 through the spring 7.

[0033] like Figure 3As shown, the adjustment groove 11 includes a connecting groove 17, a sliding groove 18 and a limiting groove 19. The sliding groove 18 is V-shaped. There are a plurality of sliding grooves 18 and limiting grooves 19. The sliding grooves 18 and limiting grooves 19 correspond to each other one by one. The connecting groove 17 is vertically placed on the housing 1. The sliding grooves 18 are evenly distributed on one side of the connecting groove 17. One end of the sliding groove 18 is connected to the connecting groove 17, and the other end of the sliding groove 18 is connected to the limiting groove 19. The limiting groove 19 is placed above the sliding groove 18. Figure 9 As shown, the adjusting rod 5 includes a sliding rod 51, a baffle 52, a hook three 53 and a handle 54. The sliding rod 51 is placed in the adjusting groove 11 and is slidably connected to the adjusting groove 11. The baffle 52 is installed at the left and right ends of the sliding rod 51. The baffle 52 is placed on both sides of the adjusting groove 11. The hook three 53 is installed on the baffle 52 on the inner side of the adjusting groove 11. The hook three 53 is connected to the spring 7. The handle 54 is installed on the baffle 52 on the outer side of the adjusting groove 11 and is coaxial with the sliding rod 51.

[0034] like Figure 5 As shown, a telescopic rod 43 is provided on the bottom plate 41 and is placed in the sealing bag 42. The telescopic rod 43 includes several short rods 431, which are arranged in an X shape and hinged together from top to bottom. One end of the telescopic rod 43 is connected to the bottom plate 41, and the other end of the telescopic rod 43 is connected to the sealing plate 3. The sealing bag 42 is provided with two beadings 44, the lower end of the sealing bag 42 is connected to the bottom plate 41 via one beading 44, and the upper end of the sealing bag 42 is connected to the sealing plate 3 via the other beading 44. The bottom end of the housing 1 is provided with a fixed flange 12, which is connected to the bottom end of the housing 1 and has a threaded hole 15.

[0035] During installation, the telescopic mechanism 4 is connected to the sealing bag 42, and then fastened with the pressure strip 44. After fastening, the other end of the sealing bag 42 is connected to the sealing plate 3, and the pressure strip 44 is also used to fasten it. This design improves the airtightness of the telescopic mechanism 4 and improves the accuracy of detection. The sealing plate 3 is pushed into the limit block 14 of the shell to make the connection of the structure tighter. After pushing the sealing plate 3, the telescopic mechanism 4 is placed into the channel 8 of the shell 1. The enclosed space composed of the sealing plate 3, the sealing bag 42 and the bottom plate 41 is used to detect the suction force of the vacuum cleaner. An exhaust port 31 is provided on the sealing plate 3, and the exhaust port 31 corresponds to the open end of the sealing bag 42. The working port of the vacuum cleaner is connected to the exhaust port 31 accordingly. When the vacuum cleaner works, the internal gas is extracted to form a pressure difference between the inside and the outside. Under the action of the pressure difference, the telescopic mechanism 4 is pushed upward to achieve the purpose of detection.

[0036] A telescopic rod 43 is provided inside the sealing bag 42. The structure of the telescopic rod 43 allows the telescopic rod 43 to be extended and retracted up and down. The telescopic rod 43 placed inside can make the telescopic mechanism 4 move stably. Two telescopic rods 43 are provided inside to achieve a balancing effect. The telescopic rods 43 are installed inside to prevent the sealing bag 42 from sticking to each other after the gas inside is extracted, so as to avoid the telescopic mechanism 43 from failing to rise.

[0037] An extrusion plate 2 is mounted on the housing's stopper 24. Its long side 21 is parallel to the side of the housing 1, its bottom side 22 is parallel to the end face, and its short side 23 contacts the sealing plate 3. The extrusion plate 2 is connected to the stopper 14 via a rotating shaft 25. This connection creates a gap between the long side 21 of the extrusion plate 2 and the side of the housing 1, allowing the extrusion plate 2 to rotate to a certain degree. A fixing slot 12 is provided in the housing 1, on which a rotating block 6 is mounted. The rotating block 6 is square in shape and connected to the housing 1 within the fixing slot 12. The width of the fixing slot 12 ensures the rotation of the rotating block 6. A limiting slot 24 is provided on the long side 21 of the extrusion plate 2, corresponding to the rotating block 6. The rotating block 6 is rotated to its top and placed in the limiting slot 24, supporting the extrusion plate 2. A guide plate 46 is provided on the bottom plate 41 of the telescopic mechanism 4 within the housing 1, allowing the rotating block 6 to pass through as the bottom plate 41 moves up and down. The guide plate 46 is provided with a guide groove 47, the shape of which aligns with the motion trajectory of the rotating block 6. A rotating rod 61 is provided on the rotating block 6, and its position corresponds to that of the guide groove 47. Therefore, when the base plate 41 passes through the rotating block 6, the rotating rod 61 enters the guide groove 47 and moves along the shape of the guide groove 47. After the base plate 41 passes through the rotating block 6, the side of the rotating block 6 becomes parallel to the long side 21 of the extrusion plate 2, thereby relaxing the extrusion plate 2.

[0038] The base of the telescopic mechanism 4 is equipped with four hooks 45 arranged in a square pattern, corresponding to the sides of the housing 1. Hooks 16 are mounted on two sides of the inner wall of the housing 1. One end of the spring 7 is connected to hook 1 45, and the other end of the spring 7 is connected to hook 2 16. Adjustment rods 5 are mounted on the adjustment slots 11 on the other two sides of the housing 1. Hooks 53 are also mounted on the adjustment rods, which are connected to springs 7. Finally, the fixed plate 12 of the housing 1 is secured with screws.

[0039] When in use, place the working port of the vacuum cleaner on the exhaust port 31 of the sealing plate 3 and place it tightly. The vacuum cleaner starts working and extracts the air inside the sealing bag 42. After the air is extracted, a pressure difference is formed inside and outside the sealing bag 42, thereby causing the bottom plate 41 of the telescopic mechanism 4 to rise. When rising, the rotating block 6 is passed through and the rotating rod 61 moves in the guide groove 47, thereby rotating the rotating block 6, causing the extrusion plate 2 to relax and the detection is completed. After the detection is completed, remove the vacuum cleaner, and the telescopic mechanism 4 moves downward under the action of the spring 7. The rotating block 6 can be reset during the movement. When the suction force of the vacuum cleaner being tested changes, it is only necessary to slide the adjustment rod 5 and place the adjustment rod 5 in different sliding grooves 18 to detect vacuum cleaners with different suction forces.

Claims

1. A detection device for a vacuum cleaner, characterized in that: The invention comprises a housing (1), a sealing plate (3) and a telescopic mechanism (4), wherein the housing (1) is provided with a channel (8), the sealing plate (3) is connected to the top of the housing (1), the sealing plate (3) is provided with an air outlet (31), the telescopic mechanism (4) is placed in the channel (8), the telescopic mechanism (4) matches the channel (8), the telescopic mechanism (4) is connected to the sealing plate (3), the air outlet (31) is communicated with the telescopic mechanism (4), the housing (1) is provided with an adjustment groove (11), the adjustment groove ( 11) is provided with an adjusting rod (5), the adjusting rod (5) is provided with a spring (7), one end of the spring (7) is connected to the adjusting rod (5), the other end of the spring (7) is connected to the telescopic mechanism (4), the telescopic mechanism (4) includes a bottom plate (41) and a sealing bag (42), one end of the sealing bag (42) is connected to the bottom plate (41), the other end of the sealing bag (42) is connected to the sealing plate (3), the sealing bag (42) is communicated with the exhaust port (31), and the bottom plate (41) matches the channel (8).

2. A detection device for a vacuum cleaner according to claim 1, characterized in that: A limit block (14) is provided at the top of the housing (1), the limit block (14) is U-shaped, the cross-section of the limit block (14) is L-shaped, the side of the limit block (14) is connected to the outer side of the housing (1), and the sealing plate (3) is placed between the bottom surface of the limit block (14) and the top of the housing (1).

3. The detection device for a vacuum cleaner according to claim 2, characterized in that: The housing (1) is provided with an extrusion plate (2), the extrusion plate (2) comprising a long side (21), a short side (23) and a bottom side (22), the bottom side (22) being placed above the sealing plate (3) and parallel to the sealing plate (3), one end of the short side (23) being connected to one end of the bottom side (22), the other end of the short side (23) being placed between the sealing plate (3) and the bottom side (22), one end of the long side (21) being connected to the other end of the bottom plate (41), and the long side (23) being placed between the sealing plate (3) and the bottom side (22). A rotating shaft (25) is provided on the inner side surface of the side (21), and the rotating shaft (25) is rotatably connected to the limiting block (14). A fixing groove (13) is provided on the housing (1), and a rotating block (6) is provided on the fixing groove (13). The rotating block (6) is square in shape, and the rotating block (6) is rotatably connected to the fixing groove (13). A limiting groove (24) is provided on the inner side surface of the other end of the long side (21), and the limiting groove (24) matches the rotating block (6).

4. The detection device for a vacuum cleaner according to claim 3, characterized in that: The bottom plate (41) is provided with a guide plate (46), the position of the guide plate (46) corresponds to the position of the rotating block (6) in the upper and lower directions, the guide plate (46) is connected to the bottom plate (41), the guide plate (46) is provided with a guide groove (47), the guide groove (47) includes an arc groove (48) and a vertical groove (49), one end of the arc groove (48) is communicated with the top of the guide plate (46) and is located on a side away from the shell (1), the other end of the arc groove (48) is communicated with one end of the vertical groove (49), the other end of the vertical groove (49) is communicated with the bottom surface of the guide plate (46), and the vertical groove (49) is located on a side close to the shell (1), the rotating block (6) is provided with a rotating rod (61), the rotating rod (61) is connected to the rotating block (6), the rotating rod (61) is located at one of the right angles of the rotating block (6), and the guide groove (47) matches the rotating rod (61).

5. The detection device for a vacuum cleaner according to claim 1, characterized in that: The bottom plate (41) is provided with four hooks (45), the springs (7) are four and correspond one to one with the hooks (45), the hooks (45) are connected to the bottom surface of the bottom plate (41) and the four hooks (45) correspond one to one with the four side surfaces of the housing (1), two of the corresponding side inner walls of the housing (1) are provided with hooks (16), the hooks (45) are connected to the hooks (16) via the springs (7), the adjustment slots (11) are placed on the remaining two corresponding side surfaces of the housing (1), and the adjustment rod (5) is connected to the hooks (45) via the springs (7).

6. The detection device for a vacuum cleaner according to claim 5, characterized in that: The adjusting groove (11) includes a connecting groove (17), a sliding groove (18) and a limiting groove (19), the sliding groove (18) is V-shaped, and a plurality of the sliding grooves (18) and the limiting grooves (19) are provided. The sliding grooves (18) and the limiting grooves (19) correspond to each other one by one. The connecting groove (17) is vertically placed on the housing (1), and the sliding grooves (18) are evenly distributed on one side of the connecting groove (17). One end of the sliding groove (18) is connected to the connecting groove (17), and the other end of the sliding groove (18) is connected to the limiting groove (19), and the limiting groove (19) is placed above the sliding groove (18).

7. The detection device for a vacuum cleaner according to claim 5, characterized in that: The adjusting rod (5) includes a sliding rod (51), a baffle (52), a hook three (53) and a handle (54). The sliding rod (51) is placed in the adjusting groove (11) and is slidably connected to the adjusting groove (11). The baffle (52) is installed on the left and right ends of the sliding rod (51). The baffle (52) is placed on both sides of the adjusting groove (11). The hook three (53) is installed on the baffle (52) inside the adjusting groove (11). The hook three (53) is connected to the spring (7). The handle (54) is installed on the baffle (52) outside the adjusting groove (11) and is coaxial with the sliding rod (51).

8. The detection device for a vacuum cleaner according to claim 1, characterized in that: A telescopic rod (43) is provided on the bottom plate (41), and the telescopic rod (43) is placed in the sealing bag (42). The telescopic rod (43) includes a plurality of short rods (431), and the short rods (431) are hinged together in sequence from top to bottom after being in an X shape. One end of the telescopic rod (43) is connected to the bottom plate (41), and the other end of the telescopic rod (43) is connected to the sealing plate (3). Two pressure strips (44) are provided on the sealing bag (42), and the lower end of the sealing bag (42) is connected to the bottom plate (41) through one of the pressure strips (44), and the upper end of the sealing bag (42) is connected to the sealing plate (3) through the other pressure strip (44).

9. The detection device for a vacuum cleaner according to claim 1, characterized in that: The bottom end of the housing (1) is provided with a fixed flange (12), the fixed flange (12) is connected to the bottom end of the housing (1), and a threaded hole (15) is provided on the fixed flange (12).

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