Kitchen range air vent detection device

Abstract

The utility model discloses a stove vent detection device which comprises a detection table, a to-be-detected gas stove is placed on the detection table, a sleeve assembly, a suction cup assembly and a gas supply assembly are arranged on the detection table, the sleeve assembly can downwards press a downward-pressing type knob of the to-be-detected gas stove, and the suction cup assembly is arranged on the detection table. The suction cup assembly can be communicated with a gas outlet of the gas stove to be detected, and gas output by the gas outlet is sent to a detection area; the detection area is an air bag communicated through the output tail end of the catheter, the air bag is placed in an observation cup, transparent liquid is arranged in the observation cup, and scale marks are arranged on the surface of the observation cup. According to the utility model, the gas tightness of the gas stove to be detected can be judged based on the liquid level height change in unit time; if the air bag does not change, the air outlet can be judged to be completely blocked. The mode of judging the air tightness of the air outlet through the liquid level height change is simple and visual, and the problem of high cost caused by using an air pressure sensor for detection is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of stove detection, in particular to a stove vent detection device. Background Art

[0002] The air tightness of the gas stove will not only affect the working performance of the gas stove, such as combustion efficiency, but also affect the safety of the gas stove. In order to ensure the working performance and safety of the gas stove, the air tightness of the gas stove needs to be tested before leaving the factory;

[0003] The existing technology with patent publication number CN214667488U can batch detect multiple air outlets at one time. However, its detection method relies on the air pressure sensor to display air tightness. Although its measurement performance is excellent and accurate, the cost is bound to be higher, and once damaged, the replacement and repair costs are also higher. Therefore, the pure physical detection method completely avoids this scenario. Summary of the invention

[0004] The purpose of the utility model is to solve the problem that the cost of air pressure sensor detection in the prior art is bound to be higher, and once damaged, the replacement and repair costs are also higher. In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A stove vent detection device comprises a detection platform, on which a gas stove to be tested is placed, and on which a sleeve assembly, a suction cup assembly and a gas supply assembly are arranged, wherein the sleeve assembly can press downward a push-down knob of the gas stove to be tested, and the suction cup assembly can connect to the gas outlet of the gas stove to be tested, and deliver the gas output from the gas outlet to a detection area;

[0006] The detection area is an air bag connected to the output end of the catheter, and the air bag is placed in an observation cup. The observation cup contains a transparent liquid and has scale lines on the surface of the observation cup.

[0007] Preferably, the detection platform is penetrated at both ends and opened on the top surface to form a mounting groove; a plurality of rotating shafts are equidistantly arranged in the mounting groove, and a conveying wheel is arranged on the fixed sleeve outside the rotating shaft, and the plurality of conveying wheels are used to convey the gas stove to be tested to the detection position.

[0008] Preferably, a plurality of first support frames equidistantly pointing upward are fixedly provided on the top surface of the detection platform, and the first support frames are commonly connected to the slide table, and the upper and lower surfaces of the slide table are provided with through grooves, and a slide groove is provided inside the slide table, and the through groove and the slide groove are connected; a slider is provided for limited sliding in the slide groove, and the upper and lower surfaces of the slider are provided with internal thread grooves, and the slider is threadedly connected to the sleeve assembly through the internal thread groove, driving the sleeve assembly to move between adjacent push-down knobs.

[0009] Preferably, the sleeve assembly comprises an externally threaded sleeve threaded with a slider, the top of the externally threaded sleeve is located above the slide, and a coaxial shaft is coaxially fixed on its top, and a turntable is coaxially fixed on the top of the coaxial shaft; the bottom of the externally threaded sleeve is located below the slide, and a telescopic rod is slidably arranged in the coaxial inner cavity of the externally threaded sleeve, and a bearing at the bottom end of the telescopic rod is connected to a cover pressing cylinder. A first spring is sleeved on the outer wall of the telescopic rod, and the upper and lower ends of the first spring are respectively fixedly connected to the externally threaded sleeve and the cover pressing cylinder.

[0010] Preferably, the suction cup assembly includes a suction cup covering the gas stove tabletop to be tested, and the suction cup completely covers the air outlet; a telescopic air pipe is passed through the suction cup upward, the bottom end of the telescopic air pipe is sealed at the penetration point of the suction cup, the top end slides through a lower air pipe, and extends to an upper air pipe fixed in a vertical direction, and the upper air pipe is slidably connected to the telescopic air pipe; the penetration point of the upper air pipe and the telescopic air pipe is sealed and slidably connected by a piston ring structure.

[0011] Preferably, a symmetrical connecting ring is provided between the outer walls of the upper air pipe and the lower air pipe, the connecting ring integrally connects the upper air pipe and the lower air pipe, and a horizontal pull rod is fixed to the outer wall of the telescopic air pipe between the upper air pipe and the lower air pipe.

[0012] Preferably, a second spring is sleeved on the outer wall of the telescopic air pipe between the lower air pipe and the suction cup, and the upper and lower ends of the second spring are respectively fixedly connected to the lower air pipe and the suction cup.

[0013] Preferably, the detection platform is provided with two sets of second support frames which are arranged opposite to each other on one side relative to the first support frame, a rodless cylinder is provided between the second support frames, and a moving body of the rodless cylinder is connected to the moving platform.

[0014] Preferably, the initial lengths of the first spring and the second spring enable the bottom surfaces of the cover pressing cylinder and the suction cup to be located at the top horizontal plane of the detection platform.

[0015] Compared with the prior art, the utility model provides a stove vent detection device, which has the following beneficial effects:

[0016] The air tightness of the gas stove to be tested can be judged based on the change in liquid level within a unit time; if the airbag does not change, it can also be judged that the air outlet is completely blocked. The method of judging the air tightness of the air outlet by the change in liquid level is simple and intuitive, avoiding the high cost problem caused by using an air pressure sensor for detection.

[0017] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a side view structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the suction cup assembly of the utility model;

[0021] Figure 4 This is a schematic diagram of the position of an embodiment of the observation cup of the utility model;

[0022] Figure 5 This is a schematic diagram of the position of another embodiment of the observation cup of the utility model;

[0023] Figure 6 This is a schematic diagram of the connection between the auxiliary pad and the test bench of the utility model;

[0024] Figure 7 It is a schematic diagram of gas transportation of the utility model.

[0025] In the figure: 1. test table; 2. gas stove to be tested; 3. sleeve assembly; 4. suction cup assembly; 7. gas supply assembly; 9. air bag; 10. observation cup; 11. mounting slot; 12. rotating shaft; 13. conveying wheel; 14. auxiliary pad; 21. push-down knob; 22. air inlet; 23. air outlet; 31. turntable; 32. concentric shaft; 33. external threaded sleeve; 34. telescopic rod; 35. first spring; 36. cover pressure Cylinder; 41, suction cup; 42, telescopic air pipe; 43, lower air pipe; 44, upper air pipe; 45, guide tube; 46, connecting ring; 47, pull rod; 48, second spring; 50, first support frame; 51, slide table; 52, slider; 60, second support frame; 61, rodless cylinder 61; 62, moving table; 71, mounting plate; 72, piston air cylinder; 73, winding groove; 511, through groove; 512, slide groove. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] First, the prior art and related concepts involved in the embodiments of the present invention are described:

[0029] Rodless cylinder 61: The working principle of rodless cylinder 61 is the same as that of ordinary cylinder, but the external connection and sealing form are different.

[0030] Both sides of the cylinder are hollow, and the permanent magnet inside the piston rod drives another magnet (moving part) outside the piston rod. It has very high requirements for cleanliness. The magnetically coupled rodless cylinder 61 often needs to be disassembled and cleaned with gasoline, which is related to its working environment.

[0031] The rodless cylinder 61 has a piston but no piston rod. The piston is installed in a guide rail, an external load is connected to the piston, and the action depends on air intake.

[0032] The magnetic coupling movement is achieved by using the permanent magnet in the hollow piston rod to drive another magnet outside the piston rod to move. The piston drives the moving body outside the cylinder to move synchronously through magnetic force. Its working principle is: a set of high-strength permanent magnetic rings are installed on the piston, and the magnetic lines of force act on another set of magnetic rings on the outside through the thin-walled cylinder. Since the two sets of magnetic rings have opposite magnetic properties, they have strong suction. When the piston is pushed by air pressure in the cylinder, it drives the magnetic ring sleeve outside the cylinder to move together under the action of magnetic force. The thrust of the cylinder piston must be adapted to the suction of the magnetic ring. Example

[0033] Reference Figure 1-Figure 7 The present embodiment provides a stove vent detection device, comprising a detection platform 1, on which a gas stove 2 to be tested is placed, and sleeve assemblies 3 and suction cup assemblies 4 are respectively provided on both sides of the detection platform 1, wherein the sleeve assembly 3 is used to press down a push-down knob 21 of the gas stove 2 to be tested, thereby opening a gas passage; the suction cup assembly 4 is used to connect the gas outlet 23 of the gas stove 2 to be tested, and to deliver the gas output from the gas outlet 23 to the detection area.

[0034] Reference Figure 1 Furthermore, the two ends of the detection platform 1 are penetrated and the top surface is open to form an installation groove 11; a plurality of rotating shafts 12 are equidistantly rotated in the installation groove 11, and a conveying wheel 13 is fixedly sleeved outside the rotating shaft 12, and the plurality of conveying wheels 13 are used to convey the gas stove 2 to be tested to the detection position, and then transfer it to the next process after the detection is completed; wherein the conveying wheel 13 can be in the form of a transmission wheel, for example, a driving pulley is fixedly sleeved on a rotating shaft 12, which is controlled by a motor, and then drives a plurality of driven pulleys through a belt, and the driven pulley drives the other conveying wheels 13 to rotate.

[0035] Auxiliary pads 14 are also provided on both sides of the test table 1, which are used to accommodate the protruding positions of the edges of the gas stove 2 to be tested; generally speaking, the edge of the lower surface of the gas stove 2 to be tested has a flange structure downward, and a number of flanges downward are also designed in the middle of the lower surface, which are used to form a number of installation areas for installing the above-mentioned push-down knob 21, the air outlet 23 or the air inlet 22 and other components;

[0036] Furthermore, the top surface of the detection platform 1 is also fixed with a plurality of first support frames 50 equidistantly upward, and the first support frames 50 are preferably an inverted L-shaped structure, and the plurality of first support frames 50 of the L-shaped structure are connected together to a slide 51 parallel to the detection platform 1, and the upper and lower surfaces of the slide 51 are provided with a through groove 511, and a slide groove 512 is provided inside the slide, and the through groove 511 and the slide groove 512 are connected; a slider 52 is provided for limited sliding in the slide groove 512, and the upper and lower surfaces of the slider 52 are provided with an internal thread groove, and the slider 52 is threadedly connected to the sleeve assembly 3 through the internal thread groove, so as to drive the sleeve assembly 3 to move between adjacent push-down knobs 21, and adapt to different push-down knobs 21. Furthermore, in the present embodiment, the limited sliding of the slider 52 and the slide groove 512 is preferably a structure in which the slider 52 is in the shape of the slide groove 512, or a structure in which a ball bearing or a limited pulley is connected between the outer wall of the slider 52 and the inner wall of the slide groove 512.

[0037] Furthermore, the sleeve assembly 3 includes an externally threaded sleeve 33 threaded with a slider 52, the top of the externally threaded sleeve 33 is located above the slide 51, and a coaxial shaft 32 is coaxially fixed on its top, and a turntable 31 is coaxially fixed on the top of the coaxial shaft 32. The bottom end of the externally threaded sleeve 33 is located below the slide 51, and a telescopic rod 34 is slidably provided in the coaxial inner cavity of the externally threaded sleeve 33, and a cover pressure cylinder 36 is connected to the bearing at the bottom end of the telescopic rod 34. Of course, the outer surfaces of the upper and lower ends of the externally threaded sleeve 33 are centrifugally outwardly provided with a first retaining ring (not shown in the figure) to prevent it from falling off and escaping from the slide 51. The sliding inner cavity of the externally threaded sleeve 33 and the top of the telescopic rod 34 are both provided with a second retaining ring (not shown in the figure) to prevent the telescopic rod 34 from falling off. The outer wall of the telescopic rod 34 is sleeved with a first spring 35, and the upper and lower ends of the first spring 35 are respectively fixedly connected to the externally threaded sleeve 33 and the sleeve.

[0038] When it is necessary to use the sleeve to press the push-down knob 21, the turntable 31 is rotated, and the turntable 31 drives the externally threaded sleeve 33 to move upward, and the externally threaded sleeve 33 drives the cover pressing cylinder 36 to move upward through the telescopic rod 34 and the first spring 35; push the turntable 31, use the slider 52 to drive the cover pressing cylinder 36 to move to the top of the push-down knob, and rotate the turntable 31 in the opposite direction, so that the inner top wall of the cover pressing cylinder 36 presses the push-down knob downward, thereby connecting the pipeline between the air inlet 22 and the air outlet 23. Of course, in order to prevent the push-down knob from being over-extruded, the first spring 35 is designed to allow a certain extrusion force tolerance between the knob and the externally threaded sleeve 33. The inner top wall of the cover pressing cylinder 36 can be made of a material with a higher hardness, and the side wall of the cover pressing cylinder 36 can be made of a plastic material with a certain elasticity, which can also improve the extrusion force tolerance between the knob and the externally threaded sleeve 33.

[0039] As mentioned above, the suction cup assembly 4 is used to connect to the gas outlet 23 of the gas stove 2 to be tested, and is used to deliver the gas output from the gas outlet 23 to the detection area. The suction cup assembly 4 includes a suction cup 41 covering the tabletop of the gas stove 2 to be tested, and the suction cup 41 completely covers the gas outlet 23; the suction cup 41 is made of elastic plastic material and is an inverted bowl-shaped structure. The suction cup 41 is penetrated upward by a telescopic air pipe 42, the bottom end of the telescopic air pipe 42 is sealed with the penetration point of the suction cup 41, the top end slides through a lower air pipe 43, and extends to an upper air pipe 44 fixed in the vertical direction, and the upper air pipe 44 is slidably connected with the telescopic air pipe 42; the penetration point of the upper air pipe 44 and the telescopic air pipe 42 is sealed and slidably connected by a piston ring structure. A symmetrical connecting ring 46 is provided between the outer walls of the upper air pipe 44 and the lower air pipe 43, and the connecting ring 46 is used to integrally connect the upper air pipe 44 and the lower air pipe 43, and a horizontal pull rod 47 is fixed to the outer wall of the telescopic air pipe 42 between the upper air pipe 44 and the lower air pipe 43. Furthermore, a second spring 48 is sleeved on the outer wall of the telescopic air pipe 42 between the lower air pipe 43 and the suction cup 41, and the upper and lower ends of the second spring 48 are respectively fixedly connected to the lower air pipe 43 and the suction cup 41.

[0040] Furthermore, the top of the upper air tube 44 is connected to a catheter 45, and the output end of the catheter 45 is connected to an air bag 9. The air bag 9 is placed in a transparent observation cup 10. The observation cup 10 contains a transparent liquid such as clean water, and there are scale lines on the surface of the observation cup 10.

[0041] Furthermore, the fixation of the upper air pipe 44 in the height direction can be achieved by a moving platform 62 of a horizontal moving mechanism; the detection platform 1 is provided with two sets of second support frames 60 arranged opposite to each other on one side relative to the first support frame 50, and a rodless cylinder 61 is provided between the second support frames 60, and the moving body (magnetic ring sleeve) of the rodless cylinder 61 is connected to the moving platform 62. Preferably, the moving platform 62 is a frame structure, which fixes the upper air pipe 44 in the up and down directions. Furthermore, the observation cup 10 can be arranged in the frame of the moving platform 62. Of course, the observation cup 10 can also be arranged on the moving body, so that the observation cup 10 can follow the suction cup 41 to move in the horizontal reverse direction. Alternatively, when the catheter 45 is long enough, the observation cup 10 can be placed on the detection platform 1, which is more convenient for the user to observe.

[0042] In order to batch detect multiple gas outlets 23 on the gas stove 2 to be tested, multiple suction cup assemblies 4 can be fixed by a telescopic connecting rod to adapt to the multiple gas outlets 23.

[0043] When the suction cup 41 needs to cover the gas outlet 23, the gas stove 2 to be tested is placed at an appropriate position of the conveying wheel 13, and the pull rod 47 is pulled upward, that is, the second spring 48 is compressed, and the conveying wheel 13 is controlled to drive the gas outlet 23 of the gas stove 2 to be tested to move to the position directly below the suction cup 41, and the pull rod 47 is released, so that the suction cup 41 controls the rodless cylinder 61 to move in the horizontal direction, driving the suction cup 41 to move directly above the gas outlet 23. When the pull rod 47 is released, the second spring 48 is reset, and the suction cup 41 is tightly pressed on the surface of the gas stove 2 to be tested corresponding to the gas outlet 23.

[0044] Therefore, in order to ensure that the first spring 35 and the second spring 48 can be tightly abutted against the gas stove 2 to be tested, the initial length of the first spring 35 and the second spring 48 should ensure that the bottom surfaces of the cover pressure cylinder 36 and the suction cup 41 are located below the table top of the gas stove 2 to be tested; preferably, the initial length of the first spring 35 and the second spring 48 makes the bottom surfaces of the cover pressure cylinder 36 and the suction cup 41 both located on the top horizontal plane of the detection table 1.

[0045] Reference Figure 6 In this embodiment, in order to adapt to the gas hoods to be tested with flanges of different heights, the height of the auxiliary pad 14 can be fixed to the side wall of the test platform 1 based on bolt connection.

[0046] Reference Figure 7Further, the gas supply component 7 is a piston-type gas cylinder, a one-way valve-type air bag 9 or a gas cylinder, and its output end is connected to the gas inlet 22 of the gas stove 2 to be tested through a pipeline. Therefore, a horizontal mounting plate 71 can be set on the side wall of the test platform 1, and the mounting plate 71 passes through the fixed piston-type gas cylinder 72 from top to bottom. The mounting plate 71 also passes through a winding groove 73 from top to bottom, and the gas delivery pipeline of the piston-type gas cylinder 72 can pass through the winding groove 73 upwards and be connected to the gas inlet 22. Preferably, before the test starts, its delivery pipeline can be connected to the gas inlet 22.

[0047] When the air-tightness test is performed on the vent of the gas stove 2 to be tested, the air is supplied to the air inlet 22 through the air supply assembly 7, and the gas is transported to the air outlet 23 along the pipeline controlled by the squeezing knob opening, and then enters the air bag 9 through the telescopic air pipe 42, the upper air pipe 44 and the conduit 45, so that the air bag 9 expands, and the expanded air bag 9 changes its volume, so that the liquid level of the transparent liquid in the observation cup 10 changes. That is, the air tightness of the gas stove 2 to be tested can be judged based on the change of the liquid level within a unit time (10s, 20s, etc.); if the air bag 9 does not change, it can also be judged that the air outlet 23 is completely blocked. The method of judging the air tightness of the air outlet 23 by the change of the liquid level is simple and intuitive, avoiding the high cost problem caused by the use of air pressure sensor detection.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stove vent detection device, comprising a detection platform (1), characterized in that: The gas stove (2) to be tested is placed on the testing platform (1), and a sleeve assembly (3), a suction cup assembly (4) and a gas supply assembly (7) are arranged on the testing platform (1); the sleeve assembly (3) can press down the push-down knob (21) of the gas stove (2) to be tested, and the suction cup assembly (4) can connect the gas outlet (23) of the gas stove (2) to be tested, so as to deliver the gas output from the gas outlet (23) to the testing area; The detection area is an air bag (9) connected to the output end of the catheter (45), and the air bag (9) is placed in an observation cup (10). The observation cup (10) contains a transparent liquid, and there are scale lines on the surface of the observation cup (10).

2. A stove vent detection device according to claim 1, characterized in that: The detection platform (1) is penetrated at both ends and has an open top surface, forming a mounting groove (11); a plurality of rotating shafts (12) are equidistantly rotatably arranged in the mounting groove (11); a conveying wheel (13) is fixedly sleeved outside the rotating shaft (12); and the plurality of conveying wheels (13) are used to convey the gas stove (2) to be tested to a testing position.

3. A stove vent detection device according to claim 2, characterized in that: The top surface of the detection platform (1) is also fixed with a plurality of first support frames (50) equidistantly upwardly extending, and the first support frames (50) are connected to a slide table (51). The upper and lower surfaces of the slide table (51) are provided with a through groove (511), and a slide groove (512) is provided inside the slide table, and the through groove (511) and the slide groove (512) are connected; a slider (52) is provided in the slide groove (512) for limited sliding, and the upper and lower surfaces of the slider (52) are provided with an internal thread groove, and the slider (52) is threadedly connected to the sleeve assembly (3) through the internal thread groove, so as to drive the sleeve assembly (3) to move between adjacent push-down knobs (21).

4. A stove vent detection device according to claim 3, characterized in that: The sleeve assembly (3) comprises an externally threaded sleeve (33) threaded with a slider (52), the top end of the externally threaded sleeve (33) being located above the slide (51), and a coaxial shaft (32) being coaxially fixed on the top thereof, and a turntable (31) being coaxially fixed on the top end of the coaxial shaft (32); the bottom end of the externally threaded sleeve (33) being located below the slide (51), and a telescopic rod (34) being slidably provided in the coaxial inner cavity of the externally threaded sleeve (33), a bearing at the bottom end of the telescopic rod (34) being connected to a cover pressing cylinder (36), a first spring (35) being sleeved on the outer wall of the telescopic rod (34), and the upper and lower ends of the first spring (35) being fixedly connected to the externally threaded sleeve (33) and the cover pressing cylinder (36) respectively.

5. A stove vent detection device according to claim 4, characterized in that: The suction cup assembly (4) comprises a suction cup (41) covering the tabletop of the gas stove (2) to be tested, and the suction cup (41) completely covers the gas outlet (23); a telescopic air pipe (42) is passed through the suction cup (41) upwards, the bottom end of the telescopic air pipe (42) is sealed with the penetration point of the suction cup (41), the top end slides through a lower air pipe (43), and extends to an upper air pipe (44) fixed in a vertical direction, and the upper air pipe (44) is slidably connected to the telescopic air pipe (42); the penetration point of the upper air pipe (44) and the telescopic air pipe (42) is sealed and slidably connected via a piston ring structure.

6. A stove vent detection device according to claim 5, characterized in that: A symmetrical connecting ring (46) is provided between the outer walls of the upper air pipe (44) and the lower air pipe (43), and the connecting ring (46) integrally connects the upper air pipe (44) and the lower air pipe (43). A horizontally placed pull rod (47) is fixed to the outer wall of the telescopic air pipe (42) between the upper air pipe (44) and the lower air pipe (43).

7. A stove vent detection device according to claim 6, characterized in that: A second spring (48) is sleeved on the outer wall of the telescopic air pipe (42) between the lower air pipe (43) and the suction cup (41), and the upper and lower ends of the second spring (48) are respectively fixedly connected to the lower air pipe (43) and the suction cup (41).

8. A stove vent detection device according to claim 7, characterized in that: The detection platform (1) is provided with two sets of second support frames (60) arranged opposite to each other on one side relative to the first support frame (50), a rodless cylinder (61) is provided between the second support frames (60), and the moving body of the rodless cylinder (61) is connected to the moving platform (62).

9. A stove vent detection device according to claim 8, characterized in that: The initial lengths of the first spring (35) and the second spring (48) ensure that the bottom surfaces of the cover pressing cylinder (36) and the suction cup (41) are both located at the top horizontal plane of the detection platform (1).

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