Dust particle sampling moving support for monitoring suspended particles in clean production area

Abstract

The invention provides a dust particle sampling moving support for monitoring suspended particles in a clean production area, and relates to the field of moving supports. The dust particle sampling moving support comprises a support body, a plurality of auxiliary timing mechanisms, a directional plate and a sampling mechanism, each auxiliary timing mechanism comprises a positioning seat, a valve is fixedly arranged on one side of the interior of each positioning seat, and a valve shaft of each valve penetrates through the corresponding positioning seat and is provided with a linkage gear; one side of the outer wall of the positioning seat extends outwards to form a mounting plate, an expansion block is fixedly arranged at the front end of the mounting plate, and one side of the valve is connected with an air inlet pipe. The sampling mechanism comprises a front plate and a rear plate. The sampling mechanism can be used without manual handheld sampling, the auxiliary timing mechanisms arranged at intervals of height in the lifting process of the sampling mechanism have auxiliary timing and auxiliary starting and stopping effects, the sampling mechanism is promoted to automatically complete the sampling function of multiple groups of different height positions in the lifting process, use is more convenient and faster, and the sampling efficiency is improved. And the automation degree is higher.

Description

Technical Field

[0001] The present invention relates to the field of mobile supports, and particularly to a dust particle sampling mobile support for monitoring suspended particles in a clean production area. Background Art

[0002] Currently, the commonly used dust particle samplers are divided into two types: one is the CSJ-DI I type laser dust particle counter; the other is the TSI, that is, the handheld dust particle counter. Among them, the handheld dust particle counter is manually collected by hand. According to the national standard requirements, when sampling suspended particles in the clean area, each sampling point needs to be sampled at least 8.5L. Therefore, each working point needs to be sampled for more than 3 minutes each time. Usually, there are many sampling points to be set in the clean areas of the production workshop and the weighing center, which causes great waste and loss of manpower, material resources and time. Taking the preparation room of a certain workshop of a certain company as an example, 7 sampling points need to be set, and each sampling point is sampled twice. The required time is 2×7×3 = 42 minutes. During these 42 minutes, the monitoring personnel cannot leave. In these 42 minutes, personnel can test 2 batches of intermediate products of ordinary liquid, or can prepare reagents. Therefore, the existing detection method using the handheld dust particle counter causes great loss of manpower and is prone to cause physical fatigue of personnel. Summary of the Invention

[0003] To achieve the above objectives, the present invention is realized through the following technical solutions: A dust particle sampling mobile support for monitoring suspended particles in a clean production area includes a frame body, a plurality of auxiliary timing mechanisms, an orientation plate and a sampling mechanism. The auxiliary timing mechanism includes a positioning seat. One side inside the positioning seat is fixedly provided with a valve, and the valve shaft of the valve penetrates through the positioning seat and is installed with a linkage gear. One side of the outer wall of the positioning seat extends outward to form a mounting plate, and an expansion block is fixedly provided at the front end of the mounting plate. One side of the valve is connected with an air inlet pipe;

[0004] The sampling mechanism includes a front plate and a rear plate. The two sides of the front end face of the front plate and the rear end face of the rear plate are respectively connected by a first inclined side plate and a second inclined side plate. Driving rods are rotatably installed at the front and rear ends of the opposite sides of the first inclined side plate and the second inclined side plate. Driving wheels are fixedly provided on both sides of the two driving rods. One end of the two driving rods penetrates through the first inclined side plate and is fixedly provided with a first bevel gear. A linkage rod is rotatably arranged inside the first inclined side plate, and second bevel gears are fixedly provided at the front and rear ends of the linkage rod;

[0005] A servo motor is embedded inside the second inclined side plate, and the output end of the servo motor is connected to one of the driving rods. A fixed block is fixedly provided on one side of the outer wall of the second inclined side plate. A rack is fixedly provided on one side of the outer wall of the fixed block. A first micro motion control switch and a second micro motion control switch are respectively installed on both sides of the rear end face of the fixed block.

[0006] Preferably, a through hole is formed in the front end face of the frame body, the orientation plate is fixedly arranged at the midpoint inside the through hole, the sampling mechanism is sleeved outside the orientation plate, and a plurality of the auxiliary timing mechanisms are arranged vertically and equidistantly on one side of the inner wall of the through hole.

[0007] Preferably, sliding grooves are formed on both sides of the outer wall of the orientation plate, guide rods are installed inside the two sliding grooves, sliding blocks are fixedly arranged at the midpoints of the opposite sides of the first inclined side plate and the second inclined side plate, and guide holes are formed in the upper end faces of the sliding blocks, and the guide rods are arranged through the guide holes.

[0008] Preferably, the intake pipes of the plurality of auxiliary timing mechanisms are connected through a conduit, and one end of the conduit is connected to an inflator installed inside the frame body. The expansion block is of an inflatable airbag structure and is communicated with a valve through a connecting pipe.

[0009] Preferably, when the rack ascends and descends, it meshes with the linkage gear and pushes the linkage gear to rotate to complete the rotation of the valve shaft and the opening and closing of the valve. When the expansion block is in an inflated state, it presses and contacts the first micro motion control switch and the second micro motion control switch.

[0010] Preferably, outer plates are fixedly arranged at the lower ends of the front end face of the front plate and the rear end face of the rear plate. A connecting spring is embedded inside the outer plate, and an inner plate is fixedly arranged at one end of the connecting spring away from the inner wall of the outer plate. Orientation auxiliary wheels are installed on both sides of the outer wall of the inner plate. The orientation auxiliary wheels are pressed and fitted on the outer wall surface of the orientation plate, and the orientation auxiliary wheels are rubber wheels with anti-slip patterns on the surface.

[0011] Preferably, a dust particle counter is installed on the upper end face of the rear plate. The driving wheel slides on the front and rear outer walls of the orientation plate, and the two first bevel gears are respectively meshed with the two second bevel gears.

[0012] Preferably, the vertical height of the front plate is higher than that of the rear plate.

[0013] Preferably, bottom wheels are fixedly arranged on the lower end face of the frame body.

[0014] The present invention provides a dust particle sampling mobile bracket for monitoring suspended particles in a clean production area. It has the following beneficial effects:

[0015] The present invention provides a dust particle sampling mobile support for monitoring suspended particles in a clean production area. By installing a dust particle counter on a sampling mechanism, the sampling mechanism is sleeved on a directional plate inside a frame body. Utilizing the directional lifting movement of the sampling mechanism on the directional plate, it is not necessary to hold the sampling device manually. Moreover, an auxiliary timing mechanism set at every certain height during the lifting process of the sampling mechanism has the effects of auxiliary timing and auxiliary start / stop, enabling the sampling mechanism to automatically complete the sampling function at multiple different height positions during the lifting process, making it more convenient and faster to use, and having a higher degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an axonometric structure schematic diagram of the present invention;

[0017] Figure 2 of the present invention Figure 1 side sectional structure schematic diagram;

[0018] Figure 3 of the present invention Figure 1 structure schematic diagram without the sampling mechanism installed;

[0019] Figure 4 of the present invention Figure 1 side view structure schematic diagram;

[0020] Figure 5 is a structure schematic diagram of the auxiliary timing mechanism of the present invention;

[0021] Figure 6 is a side view structure schematic diagram of the sampling mechanism of the present invention;

[0022] Figure 7 is a top view structure schematic diagram of the sampling mechanism of the present invention;

[0023] Figure 8 is a partial top sectional structure schematic diagram of the sampling mechanism of the present invention.

[0024] Wherein, 1, frame body; 2, auxiliary timing mechanism; 201, positioning seat; 202, expansion block; 203, valve shaft; 204, linkage gear; 205, intake pipe; 3, through hole; 4, directional plate; 5, bottom wheel; 6, sampling mechanism; 601, front plate; 602, drive wheel; 603, drive rod; 604, directional auxiliary wheel; 605, first inclined side plate; 606, sliding block; 607, dust particle counter; 608, rear plate; 609, fixing block; 6010, rack; 6011, first micro motion control switch; 6012, second micro motion control switch; 6013, inner plate; 6014, outer plate; 6015, first bevel gear; 6016, second bevel gear; 6017, linkage rod; 6018, second inclined side plate; 7, chute; 8, guide rod; 9, guide hole. Detailed implementation mode

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment:

[0027] As Figures 1-8 shown, the embodiment of the present invention provides a dust particle sampling mobile bracket for monitoring suspended particles in a clean production area, which includes a frame body 1, a plurality of auxiliary timing mechanisms 2, a directional plate 4 and a sampling mechanism 6. A bottom wheel 5 is fixedly arranged on the lower end surface of the frame body 1, a through hole 3 is opened on the front end surface of the frame body 1, the directional plate 4 is fixedly arranged at the midpoint inside the through hole 3, the sampling mechanism 6 is sleeved outside the directional plate 4, and a plurality of auxiliary timing mechanisms 2 are arranged vertically and equidistantly on one side of the inner wall of the through hole 3. Slide grooves 7 are opened on both sides of the outer wall of the directional plate 4, guide rods 8 are installed in both slide grooves 7, and a sliding block 606 is fixedly arranged at the midpoint of the opposite sides of the first inclined side plate 605 and the second inclined side plate 6018, and a guide hole 9 is opened on the upper end surface of the sliding block 606, and the guide rod 8 is arranged through the guide hole 9;

[0028] Specifically, the bottom wheel 5 arranged at the lower end of the frame body 1 can be quickly pushed for use when handling is required, which is convenient for movement; and the guide rod 8 arranged in the slide grooves 7 on both sides of the directional plate 4 is used to limit and guide the sliding block 606, so that the moving direction of the sampling mechanism 6 sleeved on the directional plate 4 is restricted and the phenomenon of backward tipping is avoided, and the stability is better.

[0029] Referring to Figure 5 , the auxiliary timing mechanism 2 includes a positioning seat 201. A valve is fixedly arranged on one side inside the positioning seat 201, and the valve shaft 203 of the valve penetrates through the positioning seat 201 and is installed with a linkage gear 204. An installation plate extends outward on one side of the outer wall of the positioning seat 201, and an expansion block 202 is fixedly arranged at the front end of the installation plate. One side of the valve is connected with an air inlet pipe 205. The air inlet pipes 205 of a plurality of auxiliary timing mechanisms 2 are connected through a conduit, and one end of the conduit is connected with an air inflator installed inside the frame body 1. The expansion block 202 adopts an inflatable airbag structure and is communicated with the valve through a connecting pipe;

[0030] Specifically, when the linkage gear 204 rotates, it drives the valve shaft 203 installed inside to rotate. When the valve shaft 203 rotates, the valve is opened. After the valve is opened, the conduit connected to the expansion block 202 slowly discharges the gas inside the expansion block 202. After the gas is discharged, the expansion block 202 slowly deflates due to the overflow of the gas. Since it takes a certain amount of time for the expansion block 202 to change from the expanded state to the deflated state, a certain auxiliary timing effect is achieved.

[0031] Refer to Figures 6-8 , the sampling mechanism 6 includes a front plate 601 and a rear plate 608. The two sides of the front end face of the front plate 601 and the rear end face of the rear plate 608 are respectively connected by a first inclined side plate 605 and a second inclined side plate 6018. Driving rods 603 are rotatably installed at the front and rear ends of the relative sides of the first inclined side plate 605 and the second inclined side plate 6018. Driving wheels 602 are fixedly arranged on both sides of the two driving rods 603. One end of the two driving rods 603 penetrates through the first inclined side plate 605 and is fixedly provided with a first bevel gear 6015. A linkage rod 6017 is rotatably arranged inside the first inclined side plate 605, and second bevel gears 6016 are fixedly arranged at the front and rear ends of the linkage rod 6017;

[0032] A servo motor is embedded inside the second inclined side plate 6018, and the output end of the servo motor is connected to one of the driving rods 603. A fixed block 609 is fixedly arranged on one side of the outer wall of the second inclined side plate 6018. A rack 6010 is fixedly arranged on one side of the outer wall of the fixed block 609. A first micro motion control switch 6011 and a second micro motion control switch 6012 are respectively installed on both sides of the rear end face of the fixed block 609.

[0033] Specifically, during use, by starting the servo motor to drive one of the driving rods 603 connected to the output end to rotate. When the driving rod 603 rotates, the first bevel gear 6015 connected to one end of it rotates. Since the first bevel gear 6015 meshes with the second bevel gear 6016 at the front end of the linkage rod 6017, the linkage rotation of the linkage rod 6017 is realized, that is, the second bevel gear 6016 at the rear end of the linkage rod 6017 also rotates. Since the second bevel gear 6016 at the rear end is connected to the first bevel gear 6015 on the other driving rod 603 at the rear end, the linkage drive of the two driving rods 603 is completed, and then the rotation effect of the four driving wheels 602 is realized. At this time, the entire sampling mechanism 6 moves up and down along the orientation plate 4.

[0034] Refer to Figures 6-8, when the rack 6010 moves up and down, it meshes with the linkage gear 204 and drives the linkage gear 204 to rotate to complete the rotation of the valve shaft 203 and the opening and closing of the valve. When the expansion block 202 is in the inflated state, it presses and contacts the first micro motion control switch 6011 and the second micro motion control switch 6012. The dust particle counter 607 is installed on the upper end face of the rear plate 608. The driving wheel 602 slides on the front and rear outer walls of the orientation plate 4. The two first bevel gears 6015 are respectively meshed with the two second bevel gears 6016;

[0035] Specifically, when the entire sampling mechanism 6 moves up and down, the rack 6010 outside the fixed block 609 also moves up and down accordingly. During the up and down movement of the rack 6010, it contacts the linkage gear 204 on the moving track, prompting the linkage gear 204 to rotate, and then realizing the opening and closing movement of the valve by driving the valve shaft 203 to turn with the linkage gear 204.

[0036] Refer to Figures 6-8 , outer plates 6014 are fixedly arranged at the lower ends of the front end face of the front plate 601 and the rear end face of the rear plate 608. A connecting spring is embedded inside the outer plate 6014, and an inner plate 6013 is fixedly arranged at one end of the connecting spring away from the inner wall of the outer plate 6014. Orientation auxiliary wheels 604 are installed on both sides of the outer wall of the inner plate 6013. The orientation auxiliary wheels 604 are pressed and fitted on the outer wall surface of the orientation plate 4, and the orientation auxiliary wheels 604 are rubber wheels with anti-slip patterns on the surface;

[0037] Specifically, when the front plate 601 and the rear plate 608 are located at the front and rear ends of the orientation plate 4, the driving wheel 602 will be located on the outer wall of the orientation plate 4, and the orientation auxiliary wheels 604 will also be located on the outer wall of the orientation plate 4. Since the inner plate 6013 at the rear end will extend outwards under the action of the connecting spring, it generates a squeezing force on the outer wall of the orientation plate 4 to increase the friction with the orientation plate 4, and the anti-slip patterns and rubber material used increase the friction again, thus reducing the problem of accidental dropping.

[0038] Refer to Figure 6 , the vertical height of the front plate 601 is higher than that of the rear plate 608; realizing the use of an inclined structural form for lifting.

[0039] Working principle: When in use, the mobile support can be quickly moved to a specified position through the bottom wheels provided at the lower end of the support body. Since the dust particle counter is installed on the sampling mechanism of the support, the transportation and movement of the dust particle counter can be quickly completed. After moving to the specified position, the servo motor set inside is controlled to start, causing a driving rod installed at the output end of the servo motor to rotate. After the driving rod rotates, another driving rod is driven to rotate synchronously by the action of a first bevel gear and a second bevel gear, and then the two driving rods and the driving wheels outside the driving rods rotate. Since the four driving wheels are in contact with the outer wall of the orientation plate, the driving wheels can move upward along the orientation plate during walking, thus completing the lifting movement. At the same time, the orientation auxiliary wheels with telescopic performance provided inside can squeeze the orientation plate to provide orientation friction and reduce the problem of accidental falling.

[0040] During the lifting process of the entire sampling mechanism, the rack on the fixed block located on the second inclined side plate exerts an engaging and pushing effect on the linkage gear during the lifting process. After the linkage gear rotates, it drives the valve shaft to rotate, thereby realizing the opening and closing effect of the valve. At the same time, when the fixed block moves upward, the first micro motion control switch and the second micro motion control switch at the rear end are squeezed and pressed by the expansion block. After the pressing occurs, the first micro motion control switch and the second micro motion control switch respectively control the start and stop of the servo motor and the start of the dust particle counter. After the valve is opened, the gas inside the expansion block will slowly overflow outward, causing the expansion block to stop expanding and squeezing the first micro motion control switch and the second micro motion control switch. Thus, after the force application ends, the servo motor starts again to control the sampling mechanism to rise, and the dust particle counter stops sampling and counting at this height position until it moves to the position of the next auxiliary positioning mechanism and is enabled again.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust particle sampling mobile support for monitoring suspended particles in clean production areas, comprising a frame (1), a plurality of auxiliary timing mechanisms (2), a directional plate (4) and a sampling mechanism (6), characterized in that: The auxiliary timing mechanism (2) comprises a positioning seat (201), a valve is fixedly arranged on one side of the interior of the positioning seat (201), a valve shaft (203) of the valve penetrates the positioning seat (201) and is installed with a linkage gear (204), a mounting plate is extended outwardly on one side of the outer wall of the positioning seat (201), an expansion block (202) is fixedly arranged at the front end of the mounting plate, and an air intake pipe (205) is connected to one side of the valve; The sampling mechanism (6) comprises a front plate (601) and a rear plate (608), the front end face of the front plate (601) and the rear end face of the rear plate (608) are connected by a first inclined side plate (605) and a second inclined side plate (6018) respectively, the front and rear ends of the first inclined side plate (605) and the second inclined side plate (6018) are rotatably mounted with driving rods (603), the two sides of the two driving rods (603) are fixedly provided with driving wheels (602), one end of the two driving rods (603) passes through the first inclined side plate (605) and is fixedly provided with a first bevel gear (6015), the first inclined side plate (605) is rotatably provided with a linkage rod (6017) inside, and the front and rear ends of the linkage rod (6017) are fixedly provided with a second bevel gear (6016); A servo motor is embedded in the second inclined side plate (6018) and the output end of the servo motor is connected to one of the driving rods (603). A fixed block (609) is fixedly arranged on one side of the outer wall of the second inclined side plate (6018). A rack (6010) is fixedly arranged on one side of the outer wall of the fixed block (609). A first micro-control switch (6011) and a second micro-control switch (6012) are respectively installed on both sides of the rear end surface of the fixed block (609).

2. The dust particle sampling mobile bracket for monitoring suspended particles in clean production areas according to claim 1 is characterized in that: A through hole (3) is provided on the front end surface of the frame (1); the directional plate (4) is fixedly arranged at the middle point inside the through hole (3); the sampling mechanism (6) is sleeved on the outside of the directional plate (4); and a plurality of auxiliary timing mechanisms (2) are arranged vertically at equal intervals on one side of the inner wall of the through hole (3).

3. The dust particle sampling mobile bracket for monitoring suspended particles in clean production areas according to claim 2 is characterized by: Slide grooves (7) are provided on both sides of the outer wall of the directional plate (4), and guide rods (8) are installed inside the two slide grooves (7). Sliding blocks (606) are fixedly provided at the midpoints of the opposite sides of the first inclined side plate (605) and the second inclined side plate (6018), and guide holes (9) are provided on the upper end surfaces of the sliding blocks (606), and the guide rods (8) are arranged through the guide holes (9).

4. The dust particle sampling mobile bracket for monitoring suspended particles in clean production areas according to claim 1 is characterized in that: The air inlet pipes (205) of the plurality of auxiliary timing mechanisms (2) are connected via a conduit, and one end of the conduit is connected to an inflator installed inside the frame (1). The expansion block (202) adopts an inflatable airbag structure and is connected to a valve via a connecting pipe.

5. The dust particle sampling mobile bracket for monitoring suspended particles in clean production areas according to claim 1 is characterized by: When the rack (6010) is raised or lowered, it meshes with the linkage gear (204) and pushes the linkage gear (204) to rotate to complete the rotation of the valve shaft (203) and the opening and closing of the valve, and when the expansion block (202) is in an inflated state, it produces a pressing contact with the first micro-control switch (6011) and the second micro-control switch (6012).

6. The dust particle sampling mobile bracket for monitoring suspended particles in clean production areas according to claim 1 is characterized by: An outer plate (6014) is fixedly provided at the lower end of the front end face of the front plate (601) and the rear end face of the rear plate (608); a connecting spring is embedded in the outer plate (6014) and an inner plate (6013) is fixedly provided at one end of the connecting spring away from the inner wall of the outer plate (6014); directional auxiliary wheels (604) are installed on both sides of the outer wall of the inner plate (6013); the directional auxiliary wheels (604) are pressed and fitted on the outer wall surface of the directional plate (4) and the directional auxiliary wheels (604) are rubber wheels with anti-skid patterns on the surface.

7. The dust particle sampling mobile bracket for monitoring suspended particles in clean production areas according to claim 1 is characterized by: A dust particle counter (607) is installed on the upper end surface of the rear plate (608), the driving wheel (602) is located on the front and rear outer walls of the directional plate (4) and slides, and the two first bevel gears (6015) are respectively meshed with the two second bevel gears (6016).

8. The dust particle sampling mobile bracket for monitoring suspended particles in clean production areas according to claim 1 is characterized by: The vertical height of the front plate (601) is higher than that of the rear plate (608).

9. The dust particle sampling mobile bracket for monitoring suspended particles in clean production areas according to claim 1 is characterized by: A bottom wheel (5) is fixedly arranged on the lower end surface of the frame body (1).

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