A level instrument environment simulation detection device

Abstract

The present invention discloses an environment simulation detection device for a level meter, which comprises a box body, wherein the box body comprises an environment bin, a dust storage bin, an anti-blocking dust exhaust unit and a radial air outlet tube, wherein the dust storage bin is arranged above the environment bin, the anti-blocking dust exhaust unit connects the dust storage bin and the environment bin, the radial air outlet tube is arranged in the environment bin, the anti-blocking dust exhaust unit comprises an outer ring portion, a vibration plate and a centrifugal portion, the outer ring portion has a center hole penetrating up and down, the vibration plate is arranged in the center hole of the outer ring portion, and a dust exhaust gap is formed between the vibration plate and the center hole, the centrifugal portion is installed on the outer ring portion and drives the vibration plate to rotate, the vibration plate is energized, dust on the surface of the vibration plate is mixed with air to form a dust mixed gas, the centrifugal portion drives the vibration plate to rotate, the vibration plate drives the dust mixed gas to centrifugal motion, so that the dust mixed gas passes through the dust exhaust gap and covers the level meter for testing, the size of the dust exhaust gap changes accordingly, and the diameter of the dust particles is relatively uniform.

Description

Technical Field

[0001] The invention relates to the field related to laser levelers, and in particular to a leveler environment simulation detection device. Background Art

[0002] When the existing laser level is conducting environmental simulation testing, a dust blowing device is usually required for the dust prevention test. The existing dust blowing device drives the dust to move through wind pressure. In order to blow out the dust smoothly, the air outlet is set relatively large, the dust and air are not mixed evenly, and the dust discharge rate cannot be accurately adjusted with a small flow rate. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art that dust blowing is uneven and the dust discharge flow rate cannot be accurately adjusted.

[0004] In order to solve the above technical problems, the present invention provides a level instrument environment simulation detection device.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a level instrument environment simulation detection device, which includes a box body, the box body includes an environmental bin, a dust storage bin, an anti-blocking dust exhaust unit and a radial air outlet tube, the dust storage bin is arranged above the environmental bin, the anti-blocking dust exhaust unit connects the dust storage bin and the environmental bin, the radial air outlet tube is arranged in the environmental bin, the anti-blocking dust exhaust unit includes an outer ring part, a vibration plate and a centrifugal part, the outer ring part has a center hole passing through the upper and lower parts, the vibration plate is arranged in the center hole of the outer ring part, and a dust exhaust gap is formed between the vibration plate and the center hole, and the centrifugal part is installed on the outer ring part and drives the vibration plate to rotate.

[0006] In this scheme, the spirit level to be tested is placed in the environmental chamber, the anti-blocking dust exhaust unit is started, the dust in the dust storage chamber leaks onto the vibration plate, the vibration plate is energized, the dust on the surface of the vibration plate and the air are mixed to form a dust mixture, the centrifugal part drives the vibration plate to rotate, and the vibration plate drives the dust mixture to centrifugal motion, so that the dust mixture passes through the dust exhaust gap and covers the spirit level for testing.

[0007] Affected by the vibration of the vibration plate, the size of the dust discharge gap changes accordingly. If large solid dust cannot pass through the dust discharge gap, the vibration plate will vibrate at a high frequency to break up the stuck solid particles, which has better anti-blocking performance. The discharged dust particles are broken by the vibration plate, and the particle diameter is relatively uniform.

[0008] Preferably, the side of the outer ring portion close to the dust storage bin has a trumpet-shaped dust inlet, the side of the outer ring portion close to the environmental bin has a trumpet-shaped dust outlet, and the vibration sheet blocks the dust outlet.

[0009] In this solution, the dust inlet adopts a trumpet style to facilitate dust collection. The vibration plate blocks the dust outlet, which vibrates up and down to change the distance between the vibration plate and the dust outlet. The trumpet-shaped dust outlet facilitates the exhaust dust to diffuse downward at a limited angle.

[0010] Preferably, a support net is horizontally placed in the environmental chamber, and the support net divides the environmental chamber into a containing chamber and an air blowing chamber from top to bottom, and a dust agitation unit is arranged in the air blowing chamber.

[0011] In this solution, the support net is used to support the spirit level, and the agitation unit is started to form positive pressure or negative pressure in the air blowing bin. Since the containing bin is connected through the dust exhaust gap, the positive pressure and negative pressure are repeatedly changed, and the dust particles in the dust exhaust gap are pressed and moved, which can further improve the anti-blocking performance.

[0012] Preferably, the dust agitation unit includes an elastic membrane, a vibration generator and a fan, wherein the vibration generator is installed in an air blowing bin and connected to the elastic membrane, and the fan is arranged on the upper side of the elastic membrane to generate upward wind.

[0013] In this scheme, the dust adheres to the upper surface of the elastic membrane due to gravity. The vibration generator drives the elastic membrane to vibrate, causing the dust particles to float in the air again. The fan blows this part of the floating dust back into the containing bin. The lower side of the spirit level is also covered with dust, and the test is more comprehensive.

[0014] Preferably, the dust agitation unit includes a double-layer elastic membrane, a vibration generator and an exhaust unit. The vibration generator is installed in an air blowing bin and connected to the elastic membrane. The double-layer elastic membrane is sealed and connected to form a gas space. The exhaust unit is connected to the gas space. The edge of the elastic membrane is sealed and connected to the inner wall surface of the air blowing bin.

[0015] In this solution, the exhaust unit changes the size of the gas space, the volume of the double-layer elastic membrane increases, and a positive pressure is formed in the containing chamber; the volume of the double-layer elastic membrane decreases, and a negative pressure is formed in the containing chamber, thereby providing an alternating air pressure testing environment for the level.

[0016] Preferably, the anti-blocking dust removal unit also includes a base plate and a sieve plate, the sieve plate is installed in the environmental chamber, the base plate is arranged on the lower side of the sieve plate, the base plate has a mounting hole passing through the upper and lower parts, the vibration plate is arranged in the mounting hole, the sieve plate has a sieve opening passing through the upper and lower parts, and the sieve opening is aligned with the vibration plate on the base plate.

[0017] In this solution, dust particles are gathered on the corresponding upper surface of the vibration plate through the sieve, forming a plurality of dust piles distributed at intervals on the upper surface of the vibration plate. The gaps between the dust piles are used to accommodate air so that the air and the dust piles can be mixed when the vibration plate vibrates.

[0018] Preferably, a hinged frame is provided on the side wall of the environmental chamber, one end of the base plate is hinged to the hinged frame, and a driving mechanism is installed in the environmental chamber, and the driving mechanism is connected to the other end of the base plate.

[0019] Preferably, there are two substrates, which are symmetrically placed horizontally in the environmental chamber, an elastic body is connected between the two substrates, and each substrate is arranged with a plurality of mounting holes.

[0020] In this solution, the two base plates swing symmetrically to adjust the angle of downward dust removal, thereby realizing the function of multi-angle dust removal.

[0021] Preferably, the radial air outlet cylinder is a cylinder, a plurality of ventilation holes are provided on the side wall of the cylinder, the cylinder is vertically arranged in the anti-blocking dust exhaust unit, and the bottom of the cylinder is connected to the blowing unit.

[0022] In this solution, the air blowing unit passes the air flow through the ventilation holes to form radial flow wind, thereby blowing the dust to adhere to the side of the spirit level in a horizontal direction.

[0023] Preferably, there are multiple radial air outlet tubes, which are arranged at intervals, and there are multiple outer ring parts, which correspond one-to-one with the radial air outlet tubes, so that the vibration plate and the radial air outlet tubes are aligned vertically.

[0024] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0025] The positive and progressive effect of the present invention is that: the spirit level to be tested is placed in the environmental chamber, the anti-blocking dust exhaust unit is started, the dust in the dust storage chamber leaks onto the vibration plate, the vibration plate is energized, the dust on the surface of the vibration plate and the air are mixed to form a dust mixture, the centrifugal part drives the vibration plate to rotate, the vibration plate drives the dust mixture to centrifugal motion, so that the dust mixture passes through the dust exhaust gap and covers the spirit level for testing. Affected by the vibration of the vibration plate, the size of the dust exhaust gap changes accordingly. If large solid dust cannot pass through the dust exhaust gap, the vibration plate will vibrate at a high frequency to break the stuck solid particles, so the anti-blocking performance is better, and the discharged dust particles are broken by the vibration plate, and the particle diameter is relatively uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 It is a schematic structural diagram of an embodiment of an appearance defect detection device for level meter production of the present invention.

[0029] Figure 2 for Figure 1 Schematic diagram of the anti-blocking dust exhaust unit.

[0030] Figure 3 for Figure 1 Cross-sectional view at AA in the middle.

[0031] Figure 4 for Figure 3 Schematic diagram of the anti-blocking dust exhaust unit.

[0032] Figure 5 The figure is a schematic structural diagram of an embodiment of a vibration plate.

[0033] Figure 6 The figure is a schematic diagram of the structure of a radial air outlet tube installation method.

[0034] Figure 7 The figure is a schematic structural diagram of an embodiment of a radial air outlet tube.

[0035] Figure 8 The figure is a schematic diagram of the structure of an installation method for multiple radial air outlet tubes.

[0036] Description of reference numerals:

[0037] 10. Box body;

[0038] 11. Environmental warehouse;

[0039] 12. Dust storage silo;

[0040] 13. Anti-blocking dust exhaust unit;

[0041] 14. Radial air outlet;

[0042] 15. Outer ring;

[0043] 16. Vibration plate;

[0044] 17. Centrifugal part;

[0045] 18. Center hole;

[0046] 19. Dust removal clearance;

[0047] 20. Dust inlet;

[0048] 21. Dust outlet;

[0049] 22. Support net;

[0050] 23. Storage compartment;

[0051] 24. Air chamber;

[0052] 25. Elastic membrane;

[0053] 26. Vibration generator;

[0054] 27. Gas space;

[0055] 28. Substrate;

[0056] 29. Screen plate;

[0057] 30. Mounting hole;

[0058] 31. Screen mouth;

[0059] 32. Elastomer;

[0060] 33. Ventilation holes;

[0061] 34. Vibrator;

[0062] 35. Sealed door;

[0063] 36. Telescopic rod;

[0064] 37. Fan;

[0065] 38. Piezoelectric film;

[0066] 39. Sealed cavity;

[0067] 40. Conical disk;

[0068] 41. Through slot;

[0069] 42. Built-in fan;

[0070] 43. Speaker base. DETAILED DESCRIPTION

[0071] Combine the following Figure 1-Figure 8 The present invention is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front, and back directions mentioned below are the same as Figure 1 The up-down, left-right, front-back directions of the projection relationship itself are consistent.

[0072] Figure 1-Figure 8What is shown is a level environment simulation detection device of the present invention, a level environment simulation detection device, which includes a box body 10, the box body 10 includes an environmental bin 11, a dust storage bin 12, an anti-blocking dust exhaust unit 13 and a radial air outlet 14, the dust storage bin 12 is arranged on the environmental bin 11, the anti-blocking dust exhaust unit 13 connects the dust storage bin 12 and the environmental bin 11, the radial air outlet 14 is arranged in the environmental bin 11, the anti-blocking dust exhaust unit 13 includes an outer ring part 15, a vibration plate 16 and a centrifugal part 17, the outer ring part 15 has a center hole 18 passing through from top to bottom, the vibration plate 16 is arranged in the center hole 18 of the outer ring part 15, and a dust exhaust gap 19 is formed between the vibration plate 16 and the center hole 18, and the centrifugal part 17 is installed on the outer ring part 15 and drives the vibration plate 16 to rotate.

[0073] like Figure 2 and Figure 4 As shown, in this example, the spirit level to be tested is placed in the environmental chamber 11, the anti-blocking dust exhaust unit 13 is started, the dust in the dust storage chamber 12 leaks onto the vibration plate 16, the vibration plate 16 is energized, the dust on the surface of the vibration plate 16 and the air are mixed to form a dust mixture, the centrifugal part 17 drives the vibration plate 16 to rotate, and the vibration plate 16 drives the dust mixture to move centrifugally, so that the dust mixture passes through the dust exhaust gap 19 and covers the spirit level for testing.

[0074] Affected by the vibration of the vibration plate 16, the size of the dust discharge gap 19 changes accordingly. If large solid dust particles cannot pass through the dust discharge gap 19, the vibration plate 16 will vibrate at a high frequency to break the stuck solid particles, which has better anti-blocking performance. In addition, the discharged dust particles are broken by the vibration plate 16, and the particle diameters are relatively uniform.

[0075] Preferably, the outer ring portion 15 has a trumpet-shaped dust inlet 20 on one side close to the dust storage bin 12 , and has a trumpet-shaped dust outlet 21 on one side close to the environmental bin 11 , and the vibration sheet 16 is shielded from the dust outlet.

[0076] like Figure 4 As shown, in this example, the dust inlet 20 is in a trumpet shape to facilitate dust collection, and the vibration plate 16 blocks the dust outlet, which vibrates up and down to change the distance between the vibration plate 16 and the dust outlet. The trumpet-shaped dust outlet facilitates the exhaust dust to diffuse downward at a limited angle.

[0077] In this embodiment, the vibration plate 16 has a conical disk 40 opening downward, and the conical disk 40 can fit the inner wall of the dust outlet.

[0078] The vibration plate 16 has a plurality of through grooves 41 penetrating vertically, and dust can diffuse downward through the through grooves 41 to increase the dust discharge area.

[0079] like Figure 1 As shown, preferably, a support net 22 is horizontally placed in the environmental chamber 11, and the support net 22 divides the environmental chamber 11 into a containing chamber 23 and an air blowing chamber 24 in the upper and lower parts, and a dust agitation unit is arranged in the air blowing chamber 24.

[0080] In specific implementation, a vibrator 34 is also provided on the box body 10, and the support net 22 moves in the environment chamber 11, and the vibrator 34 is connected to the support net 22. When the vibrator 34 is started, the support net 22 is driven to vibrate, thereby providing a vibrating detection environment for the level meter.

[0081] An opening is provided on the side wall of the storage chamber 23, and a sealing door 35 is rotatably provided at the opening.

[0082] In this example, the support net 22 is used to support the spirit level, and the dust agitation unit is started to form positive pressure or negative pressure in the air blowing bin 24. Since the containing bin 23 is connected through the dust exhaust gap 19, the positive pressure and negative pressure are repeatedly changed, and the dust particles in the dust exhaust gap 19 are pressed and moved, which can further improve the anti-blocking performance.

[0083] like Figure 3 As shown, in this embodiment, a fan 37 is installed on the lower side of the support net 22, and the fan 37 generates a wind that blows upward or downward.

[0084] Preferably, the dust agitation unit includes an elastic membrane 25, a vibration generator 26 and a fan 37, wherein the vibration generator 26 is installed in the air blowing bin 24 and connected to the elastic membrane 25, and the fan 37 is arranged on the upper side of the elastic membrane 25 for generating upward wind.

[0085] In this example, the dust adheres to the upper surface of the elastic membrane 25 due to gravity, and the vibration generator 26 drives the elastic membrane 25 to vibrate, causing the dust particles to float in the air again. The fan 37 blows this part of the floating dust back into the containing chamber 23, and the lower side of the spirit level is also covered with dust, so the test is more comprehensive.

[0086] In specific implementation, the vibration generator 26 includes a dustproof film fixed to the inner wall of the air-blow chamber 24 , a sealed cavity 39 is provided in the dustproof film, a piezoelectric piece 38 is arranged in the sealed cavity 39 , and one end of the piezoelectric piece 38 is connected to the elastic membrane 25 .

[0087] like Figure 3As shown, preferably, the dust agitation unit includes a double-layer elastic membrane 25, a vibration generator 26 and an exhaust unit. The vibration generator 26 is installed in the air blowing bin 24 and connected to the elastic membrane 25. The double-layer elastic membrane 25 is sealed and connected to form a gas space 27. The exhaust unit is connected to the gas space 27. The edge of the elastic membrane 25 is sealed and connected to the inner wall surface of the air blowing bin 24.

[0088] In this example, the exhaust unit changes the size of the gas space 27, the volume of the double-layer elastic membrane 25 increases, and a positive pressure is formed in the containing chamber 23; the volume of the double-layer elastic membrane 25 decreases, and a negative pressure is formed in the containing chamber 23, thereby providing an alternating air pressure testing environment for the level.

[0089] like Figure 3 Preferably, the anti-blocking dust exhaust unit 13 also includes a base plate 28 and a sieve plate 29, the sieve plate 29 is installed in the environmental chamber 11, the base plate 28 is arranged on the lower side of the sieve plate 29, the base plate 28 has a mounting hole 30 passing through the upper and lower parts, the vibration plate 16 is arranged in the mounting hole 30, the sieve plate 29 has a sieve opening 31 passing through the upper and lower parts, and the sieve opening 31 is aligned with the vibration plate 16 on the base plate 28.

[0090] In this example, dust particles are gathered on the corresponding upper surface of the vibration plate 16 through the sieve 31, forming a plurality of dust piles spaced apart on the upper surface of the vibration plate 16. The gaps between the dust piles are used to accommodate air so that the air and the dust piles can be mixed when the vibration plate 16 vibrates.

[0091] Preferably, a hinged frame is provided on the side wall of the environmental chamber 11 , one end of the base plate 28 is hinged to the hinged frame, and a driving mechanism is installed in the environmental chamber 11 , and the driving mechanism is connected to the other end of the base plate 28 .

[0092] like Figure 3 As shown, preferably, there are two substrates 28 , which are symmetrically placed horizontally in the environmental chamber 11 , an elastic body 32 is connected between the two substrates 28 , and a plurality of mounting holes 30 are arranged on each substrate 28 .

[0093] In specific implementation, a telescopic rod 36 is installed on the lower side of the sieve plate 29, and the lower end of the telescopic rod 36 is connected to the elastic body 32. The telescopic rod 36 is extended and retracted to drive the base plate 28 to be adjusted to a certain angle through the elastic body 32.

[0094] In this example, the two base plates 28 swing symmetrically to adjust the angle of downward dust discharge, thereby realizing the function of multi-angle dust discharge.

[0095] like Figure 1As shown, preferably, the radial air outlet cylinder 14 is a cylinder, a plurality of ventilation holes 33 are provided on the side wall of the cylinder, the cylinder is vertically arranged in the anti-blocking dust exhaust unit 13, and the bottom of the cylinder is connected to the blowing unit.

[0096] In this example, the air blowing unit passes the airflow through the ventilation holes 33 to form radial flow wind, thereby blowing the dust to adhere to the side of the level in a horizontal direction.

[0097] like Figure 7 As shown, in other embodiments of the present application, the radial air outlet cylinder 14 includes a cylinder and a speaker base 43, a plurality of ventilation holes 33 are provided on the cylinder, a built-in fan 42 is installed at the bottom of the cylinder, the speaker base 43 is installed on the lower side of the support net 22, the cylinder is installed on the upper side of the support net 22, and the cylinder and the speaker base 43 are connected by screws.

[0098] like Figure 8 As shown, preferably, the number of the radial air outlet tubes 14 is multiple, and the multiple radial air outlet tubes 14 are arranged at intervals, and the number of the outer ring parts 15 is also multiple, and they correspond one-to-one with the radial air outlet tubes 14, so that the vibration plate 16 and the radial air outlet tubes 14 are aligned up and down.

[0099] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology in this field to understand the content of the present invention and implement it, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A level instrument environment simulation detection device, comprising a box body, characterized in that: The box body comprises an environmental bin, a dust storage bin, an anti-blocking dust exhaust unit and a radial air outlet tube, wherein the dust storage bin is arranged above the environmental bin, the anti-blocking dust exhaust unit is connected with the dust storage bin and the environmental bin, and the radial air outlet tube is arranged in the environmental bin; The anti-blocking dust discharge unit comprises an outer ring portion, a vibration sheet and a centrifugal portion, wherein the outer ring portion has a central hole extending therethrough from top to bottom, the vibration sheet is arranged in the central hole of the outer ring portion, and a dust discharge gap is formed between the vibration sheet and the central hole, and the centrifugal portion is mounted on the outer ring portion and drives the vibration sheet to rotate; A support net is horizontally placed in the environmental chamber, and the support net divides the environmental chamber into a containing chamber and an air-blowing chamber from top to bottom, and a dust-blowing unit is arranged in the air-blowing chamber; The dust agitation unit comprises a double-layer elastic membrane, a vibration generator and an exhaust unit. The vibration generator is installed in the air-blowing bin and connected to the elastic membrane. The double-layer elastic membrane is sealed and connected to form a gas space. The exhaust unit is connected to the gas space. The edge of the elastic membrane is sealed and connected to the inner wall surface of the air-blowing bin. The anti-blocking dust exhaust unit also includes a base plate and a sieve plate, the sieve plate is installed in the environmental chamber, the base plate is arranged at the lower side of the sieve plate, the base plate has a mounting hole that penetrates up and down, the vibration plate is arranged in the mounting hole, the sieve plate has a sieve opening that penetrates up and down, and the sieve opening is aligned with the vibration plate on the base plate; A hinged frame is provided on the side wall of the environmental chamber, one end of the base plate is hinged to the hinged frame, a driving mechanism is installed in the environmental chamber, and the driving mechanism is connected to the other end of the base plate; There are two base plates, which are symmetrically placed horizontally in the environmental chamber, an elastic body is connected between the two base plates, and each base plate is arranged with a plurality of mounting holes; The outer ring portion has a trumpet-shaped dust inlet on one side close to the dust storage bin, and has a trumpet-shaped dust outlet on one side close to the environmental bin, and the vibration sheet is shielded from the dust outlet; The dust agitation unit comprises an elastic membrane, a vibration generator and a fan, wherein the vibration generator is installed in the air blowing bin and connected to the elastic membrane, and the fan is arranged on the upper side of the elastic membrane to generate upward wind; The radial air outlet cylinder is a cylinder, a plurality of ventilation holes are provided on the side wall of the cylinder, the cylinder is vertically arranged in the anti-blocking dust exhaust unit, and the bottom of the cylinder is connected to the air blowing unit; There are multiple radial air outlet tubes, which are arranged at intervals. There are also multiple outer ring parts, which correspond to the radial air outlet tubes one by one, so that the vibration plate and the radial air outlet tubes are aligned up and down.

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