An infrared thermal imaging detector protective shell with an under-net brush structure

Abstract

The present application relates to the technical field of protective shell, especially to an infrared thermal imaging detector protective shell with a net underbrush type structure, comprising a base shell, a cover plate installed on the base shell, infrared glass and ultraviolet glass both installed on the cover plate, a rotating column rotatably connected to the cover plate, a mounting piece installed on the rotating column, a locking nut used for fixing the mounting piece, a cleaning piece installed on the mounting piece, the cleaning piece being in contact with the cover plate, the infrared glass and the ultraviolet glass, a power mechanism arranged in the base shell and used for relatively rotating the rotating column and the cover plate. The mounting piece drives the cleaning piece to rotate counterclockwise, the cleaning piece cleans the outside of the infrared glass and the ultraviolet glass, thereby removing the dust accumulated on the outside of the infrared glass and the ultraviolet glass, and avoiding the dust from shielding the detection head of the infrared temperature sensor and the ultraviolet glass tube sensor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of protective shells, in particular to an infrared thermal imaging detector protective shell with a net-under-brushing structure. BACKGROUND

[0002] Infrared thermal imaging detectors are widely used in military, fire fighting, industrial detection, medical treatment and other fields. In the field of fire fighting, infrared thermal imaging detectors are usually applied on water cannons to monitor the temperature changes in the area. When an abnormal temperature in the nearby area is detected, the water cannon is immediately driven to spray high-pressure water to the area with abnormal temperature to eliminate potential dangers. Since the application environment of the water cannon is quite different, a protective shell is usually provided for the infrared thermal imaging detector to protect it from the environmental factors and ensure its long-term stable operation.

[0003] The existing protective shell usually simply wraps and covers the infrared imaging detector. In order to ensure that the detector can monitor the external environment in real time, the detector is usually covered with a glass plate. However, since the water cannon is in an inactive state in most cases, dust will gradually accumulate on the outside of the glass plate as the'standby' time increases, thereby blocking the infrared imaging detector and affecting its normal monitoring of the external environment. This may cause the water cannon to fail to start at the first time, seriously threatening the safety in the area. SUMMARY

[0004] In order to overcome the shortcomings mentioned in the above technical background, the present application provides an infrared thermal imaging detector protective shell with a net-under-brushing structure.

[0005] The technical solution of the present application is as follows: an infrared thermal imaging detector protective shell with a net-under-brushing structure, comprising a base shell, a cover plate installed on the base shell, infrared glass and ultraviolet glass both installed on the cover plate, a protective net installed on the cover plate, a rotating column rotatably connected to the cover plate, a locking nut threadedly connected to the rotating column, a mounting member installed on the rotating column, the locking nut being used to fix the mounting member, a cleaning member installed on the mounting member, the cleaning member being in contact with the cover plate, the infrared glass and the ultraviolet glass, the cleaning member being located between the cover plate and the protective net, and a power mechanism arranged in the base shell and used to relatively rotate the rotating column and the cover plate.

[0006] Preferably, the mounting member is made of elastic material, and an opening is provided on the side of the mounting member away from the rotating column for replacing and installing the cleaning member.

[0007] Preferably, the cleaning piece is made of hard rubber, and the side of the cleaning piece close to the cover plate is arc-shaped, for changing the contact state between the cleaning piece and the cover plate, the infrared glass and the ultraviolet glass.

[0008] Preferably, the length of the cleaning piece is greater than the maximum distance from the edges of the infrared glass and the ultraviolet glass to the rotation center between the rotating column and the cover plate.

[0009] Preferably, the areas where the infrared glass and the ultraviolet glass contact the cover plate are both stepped, for keeping the infrared glass and the ultraviolet glass stable.

[0010] Preferably, the power mechanism comprises a motor installed on the base shell, a rotating piece arranged on the rotating column, the rotating piece being rotationally connected with the cover plate, and a bevel gear set arranged between the output shaft of the motor and the rotating piece.

[0011] Preferably, the bevel gear set comprises a first bevel gear and a second bevel gear arranged in mirror image, the second bevel gear being engaged with the first bevel gear, the first bevel gear being a missing tooth gear, the first bevel gear being fixedly connected with the output shaft of the motor, and the second bevel gear being fixedly connected with the rotating piece.

[0012] Preferably, the power mechanism further comprises a rotating shaft rotationally connected with the mounting piece, and a cleaning brush fixedly connected with the rotating shaft.

[0013] Preferably, the power mechanism further comprises two limit rods arranged in mirror image and fixedly connected with the rotating piece, the side of the connecting column close to the rotating shaft is provided with a protrusion, the limit rods are in extrusion fit with the protrusions on the connecting column, the cleaning brush is in contact fit with the cleaning piece, the connecting column is in limit rotation connection with the rotating column, the rotating column is provided with a groove, the protrusion is in limit fit with the groove, and the rotating piece is in rotation connection with the rotating column.

[0014] Preferably, the width of the cleaning brush is greater than the maximum distance between the rotating shaft and the arc-shaped surface on the cleaning piece.

[0015] Compared with the prior art, the present application has at least the following beneficial effects: the cleaning piece is driven to rotate counterclockwise by the mounting piece, the cleaning piece cleans the outer side of the infrared glass and the ultraviolet glass, thereby removing the dust accumulated on the outer side of the infrared glass and the ultraviolet glass, avoiding that the dust blocks the probe head of the infrared temperature sensor and the ultraviolet glass tube sensor, thereby causing errors in the detection of the external situation and affecting the normal performance of the detection work; the arc surface on the cleaning piece is used to make the contact force of the cleaning piece with the cover plate different during the cleaning and resetting processes, thereby reducing the wear of the cleaning piece, ensuring the cleaning effect of the infrared glass and the ultraviolet glass, and prolonging the service life; the cleaning brush is driven to rotate clockwise by the rotating shaft, the cleaning brush gradually contacts the cover plate, and the impurities accumulated on the cleaning piece due to scratching are cleaned, thereby ensuring the cleaning effect of the infrared glass and the ultraviolet glass by the subsequent cleaning piece; the cleaning brush is driven to rotate counterclockwise by the rotating shaft, the cleaning brush sweeps the impurities left on the infrared glass and the ultraviolet glass, thereby improving the cleaning effect of the infrared glass and the ultraviolet glass. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application;

[0017] Figure 2 It is a sectional view of the three-dimensional structure of the base shell and the cover plate of the present application;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the present application when the rotating column and the rotating piece relatively rotate;

[0019] Figure 4 It is a sectional view of the three-dimensional structure of the rotating column and the rotating piece of the present application;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating column, the mounting piece and the cleaning piece of the present application;

[0021] Figure 6 It is a sectional view of the three-dimensional structure of the rotating column and the mounting piece of the present application;

[0022] Figure 7 It is an exploded view of the three-dimensional structure of the mounting piece and the parts thereon of the present application.

[0023] In the above drawings: 1: base shell, 201: cover plate, 202: infrared glass, 203: ultraviolet glass, 204: protective net, 3: rotating column, 4: locking nut, 5: mounting piece, 6: cleaning piece, 701: motor, 702: rotating piece, 703: bevel gear set, 7031: first bevel gear, 7032: second bevel gear, 801: rotating shaft, 802: cleaning brush, 803: connecting column, 9: limiting rod. DETAILED DESCRIPTION

[0024] With reference to the accompanying drawings: brief description of the drawings The technical solutions in the embodiments of the present application will be apparently and completely described with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the protection scope of the present application, although the embodiments of the present application have been shown and described. For a person of ordinary skill in the art, it can be understood that the embodiments can be variously changed, modified, replaced and varied without departing from the principles and spirits of the present application.

[0025] As Figures 1-3 and Figure 7 shown, an infrared thermal imaging detector protective shell with an under-net brush structure is proposed to solve the problem that the existing protective shell cannot clean the glass cover after adding a protective net, resulting in poor infrared detection thermal imaging. It includes a base shell 1, a cover plate 201 installed on the base shell 1, an infrared glass 202 and an ultraviolet glass 203 both installed on the cover plate 201, the areas where the infrared glass 202 and the ultraviolet glass 203 contact the cover plate 201 are stepped, used to keep the infrared glass 202 and the ultraviolet glass 203 and the base shell 1 stable, a protective net 204 installed on the cover plate 201, a rotating column 3 rotatably connected to the cover plate 201, a locking nut 4 threadedly connected to the rotating column 3, a mounting piece 5 mounted on the rotating column 3, the locking nut 4 used to fix the mounting piece 5, a cleaning piece 6 mounted on the mounting piece 5, the mounting piece 5 made of elastic material, the side of the mounting piece 5 away from the rotating column 3 provided with an opening for replacing the cleaning piece 6, the cleaning piece 6 made of hard rubber material, and the side of the cleaning piece 6 close to the cover plate 201 is an arc surface for changing the contact state between the cleaning piece 6 and the cover plate 201, the infrared glass 202 and the ultraviolet glass 203, the cleaning piece 6 in contact with the cover plate 201, the infrared glass 202 and the ultraviolet glass 203, the length of the cleaning piece 6 greater than the maximum distance from the edges of the infrared glass 202 and the ultraviolet glass 203 to the rotating center between the rotating column 3 and the cover plate 201, the cleaning piece 6 located between the cover plate 201 and the protective net 204, and a power mechanism arranged in the base shell 1 for relatively rotating the rotating column 3 and the cover plate 201.

[0026] In the above scheme, the contact surface between the base shell 1 and the cover plate 201 is an explosion-proof joint surface, and a protective space is formed between the base shell 1 and the cover plate 201 to protect the electronic components therein. A sealing ring is provided between the base shell 1 and the cover plate 201 to isolate the external environment. The infrared glass 202 and the ultraviolet glass 203 are both sealed with epoxy resin to the cover plate 201. The contact area between the infrared glass 202, the ultraviolet glass 203 and the cover plate 201 can also be wedge-shaped to make the infrared glass 202 and the ultraviolet glass 203 The protective net 204 is made of steel and is used to protect the infrared glass 202 and the ultraviolet glass 203 to prevent the impact of foreign objects. The front side of the cleaning member 6 is an arc-shaped surface. During the use of the present invention, the present invention continues to protect the electronic components therein (including but not limited to infrared temperature sensors and ultraviolet glass tube sensors). As the use time increases, dust will accumulate on the outside of the infrared glass 202 and the ultraviolet glass 203, and then the power mechanism is used to rotate the rotating column 3 counterclockwise (such as Figure 2 (Taking the left viewing direction as an example), the rotating column 3 drives the mounting part 5 to rotate counterclockwise, and the mounting part 5 drives the cleaning part 6 to rotate counterclockwise. The cleaning part 6 cleans the outside of the infrared glass 202 and the ultraviolet glass 203 to remove the dust accumulated on the outside of the two, so as to prevent the dust from blocking the detection heads of the infrared temperature sensor and the ultraviolet glass tube sensor, thereby causing errors in the detection of external conditions and affecting the normal operation of the detection work.

[0027] During the counterclockwise rotation of the cleaning piece 6, since the front side of the cleaning piece 6 is an arc-shaped surface, that is, during the counterclockwise rotation of the cleaning piece 6, the edge of the cleaning piece 6 in contact with the cover plate 201 will bend slightly backward, thereby increasing the force applied by the cleaning piece 6 to the cover plate 201, the infrared glass 202 and the ultraviolet glass 203, thereby improving the cleaning effect, and then the power mechanism is used to rotate the rotating column 3 and the parts thereon clockwise (reset), and the cleaning piece 6 will continue to bend toward the side of its arc-shaped surface, thereby reducing the resistance encountered by the cleaning piece 6 during the resetting process and reducing the loss of the cleaning piece 6, thereby extending the service life while ensuring the cleaning effect on the infrared glass 202 and the ultraviolet glass 203.

[0028] like Figure 3 、 Figure 4 and Figure 7As shown, the power mechanism includes: a motor 701, installed on the base shell 1; a rotating member 702, arranged on the rotating column 3, and the rotating member 702 is rotatably connected to the cover plate 201; a bevel gear set 703, arranged between the output shaft of the motor 701 and the rotating member 702, the bevel gear set 703 consists of a first bevel gear 7031 and a second bevel gear arranged in a mirror image, the second bevel gear 7032 is engaged with the first bevel gear 7031, the first bevel gear 7031 is a missing gear, the first bevel gear 7031 is fixedly connected to the output shaft of the motor 701, and the second bevel gear 7032 is fixedly connected to the rotating member 702.

[0029] In the above solution, the first bevel gear 7031 rotates one circle, and the second bevel gear 7032 on the left rotates 150 degrees clockwise (as shown in FIG. Figure 4 As an example (taking the left view as an example), the second bevel gear 7032 on the right side rotates counterclockwise by 150°, so that the area swept by the cleaning member 6 during the rotation completely covers the infrared glass 202 and the ultraviolet glass 203. When the infrared glass 202 and the ultraviolet glass 203 need to be cleaned, the first bevel gear 7031 is driven counterclockwise by the output shaft of the motor 701 (as shown in FIG. Figure 4 As an example (taking the top view as an example), the first bevel gear 7031 meshes with the second bevel gear 7032 on the left and drives it to rotate counterclockwise (as shown in FIG. Figure 4 3 and 3. The second bevel gear 7032 on the right side starts to rotate clockwise, and the second bevel gear 7032 on the right side drives the rotating member 702 and the parts thereon to rotate clockwise together. As a result, the cleaning member 6 rotates counterclockwise and cleans the infrared glass 202 and the ultraviolet glass 203. As the first bevel gear 7031 continues to rotate counterclockwise, when the first bevel gear 7031 rotates counterclockwise until it disengages from the second bevel gear 7032 on the left side, the cleaning member 6 has completed the cleaning of the infrared glass 202 and the ultraviolet glass 203. Then the first bevel gear 7031 continues to rotate counterclockwise and engages with the second bevel gear 7032 on the right side. The second bevel gear 7032 on the right side starts to rotate clockwise, and the second bevel gear 7032 on the right side drives the rotating member 702 and the parts thereon to rotate clockwise together.

[0030] like Figures 3-7 As shown, it also includes: a rotating shaft 801, which is rotatably connected to the mounting member 5; a cleaning brush 802, which is fixedly connected to the rotating shaft 801, and the cleaning brush 802 is in contact with the cover plate 201, the infrared glass 202 and the ultraviolet glass 203; a connecting column 803, which is arranged on the rotating column 3, and the connecting column 803 is fixedly connected to the rotating shaft 801, and the protrusion and the groove are limited and matched.

[0031] In the above scheme, the cleaning brush 802 is always in contact with the cover plate 201, and a plurality of hard hairs are arranged on the cleaning brush 802 for cleaning dust left on the outer side of the infrared glass 202 and the ultraviolet glass 203. During counterclockwise rotation of the rotating column 3, the rotating column 3 drives the cleaning brush 802 to rotate counterclockwise through the mounting piece 5. During the process, the cleaning brush 802 removes easily cleaned impurities (such as dust), and the cleaning piece 6 removes difficult-to-clean impurities (such as adhesions). Then, during the process of resetting the parts driven by the rotating column 3, the impurities scraped off by the cleaning piece 6 will be left on the outer side of the infrared glass 202 and the ultraviolet glass 203 after falling off, and then these left impurities are removed by the cleaning brush 802 during the resetting process (since the adhesion impurities have been scraped by the cleaning piece 6, the subsequent cleaning difficulty is greatly reduced), so as to increase the removal rate of impurities and improve the cleaning effect.

[0032] As shown in Figures 5-7 The mirror image arrangement of the two limiting rods 9 are both fixedly connected to the rotating piece 702, the eccentricity of the connecting column 803 near the side of the rotating shaft 801 is provided as a protruding rod, the limiting rod 9 is in extrusion fit with the protruding rod on the connecting column 803, the cleaning brush 802 is in contact fit with the cleaning piece 6, the connecting column 803 is in limiting rotation connection with the rotating column 3, the connecting column 803 is provided with a protrusion, the rotating column 3 is provided with a groove, the protrusion is in limiting fit with the groove, the rotating piece 702 is in rotation connection with the rotating column 3, and the width of the cleaning brush 802 is greater than the distance between the rotating shaft 801 and the upper arc surface of the cleaning piece 6.

[0033] In the above scheme, the cleaning brush 802 is initially not in contact with the cleaning piece 6, and there is a friction force between the rotating column 3 and the cover plate 201 for ensuring that the two remain relatively stationary without external intervention, and there is a friction force between the rotating shaft 801 and the mounting piece 5, which serves the same purpose as above, and the friction force between the rotating shaft 801 and the mounting piece 5 is less than the friction force between the rotating column 3 and the cover plate 201, and the deflection angle of the protrusion in the groove is less than 180°. During counterclockwise rotation of the rotating piece 702, the rotating piece 702 drives the two limiting rods 9 to rotate counterclockwise, and the left limiting rod 9 (such as Figure 6The cam on the connecting post 803 is squeezed, and the connecting post 803 drives the rotating shaft 801 to rotate counterclockwise (rotate) through the cam thereon. The rotating shaft 801 rotates relative to the mounting part 5, and the rotating shaft 801 drives the cleaning brush 802 to rotate counterclockwise. The cleaning brush 802 gradually disengages from the cover plate 201 and gradually contacts the cleaning part 6, thereby cleaning the dust accumulated on the cleaning part 6, thereby ensuring the subsequent cleaning effect of the cleaning part 6 on the infrared glass 202 and the ultraviolet glass 203. After the rotating shaft 801 rotates counterclockwise to the extreme position (rotation 135°), the rotating part 702 continues to rotate counterclockwise, and the connecting post 803 drives the cleaning brush 802 to rotate counterclockwise through the rotating shaft 801, and the cleaning part 6 cleans the infrared glass 202 and the ultraviolet glass 203.

[0034] During the clockwise rotation of the rotating member 702, the rotating member 702 drives the two limiting rods 9 to rotate clockwise together. The limiting rod 9 on the right (such as Figure 6 The cleaning brush 802 is driven by the cleaning rod 801 to rotate clockwise, and the cleaning brush 802 is driven by the cleaning rod 801 to rotate clockwise. The cleaning brush 802 gradually contacts the cover plate 201 and cleans the impurities accumulated on the cleaning member 6 due to scratching, thereby ensuring the cleaning effect of the subsequent cleaning member 6 on the infrared glass 202 and the ultraviolet glass 203. After the rotating shaft 801 rotates counterclockwise to the limit position (rotation 135°), the rotating member 702 continues to rotate counterclockwise, and the connecting column 803 drives the cleaning brush 802 to rotate counterclockwise through the rotating shaft 801. The cleaning brush 802 sweeps away the impurities remaining on the infrared glass 202 and the ultraviolet glass 203, thereby improving the cleaning effect of the infrared glass 202 and the ultraviolet glass 203.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solutions of the present invention. They should all be included in the scope of the technical solutions claimed for protection by the present invention.

Claims

1. An infrared thermal imaging detector protective shell with an under-net brush structure, characterized in that comprising: a base shell (1); a cover plate (201) mounted on the base shell (1); an infrared glass (202) and an ultraviolet glass (203) both mounted on the cover plate (201); a protective net (204) mounted on the cover plate (201); a rotating column (3) rotatably connected to the cover plate (201); a locking nut (4) threadedly connected to the rotating column (3); a mounting piece (5) mounted on the rotating column (3), and the locking nut (4) is used to fix the mounting piece (5); a cleaning piece (6) mounted on the mounting piece (5), the cleaning piece (6) is in contact with the cover plate (201), the infrared glass (202) and the ultraviolet glass (203), and the cleaning piece (6) is located between the cover plate (201) and the protective net (204); a power mechanism arranged in the base shell (1) for relatively rotating the rotating column (3) and the cover plate (201); the cleaning piece (6) is made of hard rubber material, and an arc surface is formed on the side of the cleaning piece (6) close to the cover plate (201) for changing the contact state between the cleaning piece (6) and the cover plate (201), the infrared glass (202) and the ultraviolet glass (203); the areas where the infrared glass (202) and the ultraviolet glass (203) contact with the cover plate (201) are both stepped for keeping the infrared glass (202) and the ultraviolet glass (203) stable with the cover plate (201); further comprising: a rotating shaft (801) rotatably connected to the mounting piece (5); a cleaning brush (802) fixedly connected to the rotating shaft (801), the cleaning brush (802) is in contact with the cover plate (201), the infrared glass (202) and the ultraviolet glass (203); a connecting column (803) arranged on the rotating column (3), the connecting column (803) is fixedly connected with the rotating shaft (801).

2. The protective housing for an infrared thermal imaging detector with a netted brush type structure according to claim 1, characterized in that, the mounting piece (5) is made of elastic material, and an opening is formed on the side of the mounting piece (5) away from the rotating column (3) for replacing the cleaning piece (6).

3. The protective housing for an infrared thermal imaging detector with a netted brush type structure according to claim 2, characterized in that, the length of the cleaning piece (6) is greater than the maximum distance from the edges of the infrared glass (202) and the ultraviolet glass (203) to the rotating center between the rotating column (3) and the cover plate (201).

4. The protective housing for an infrared thermal imaging detector with a netted brush type structure according to claim 3, characterized in that, the power mechanism comprises: a motor (701) mounted on the base shell (1); a rotating piece (702) arranged on the rotating column (3), the rotating piece (702) is rotatably connected with the cover plate (201); a bevel gear set (703) arranged between the output shaft of the motor (701) and the rotating piece (702).

5. The protective housing for an infrared thermal imaging detector with a netted brush type structure according to claim 4, characterized in that, The bevel gear set (703) is composed of a first bevel gear (7031) and a mirror image arranged second bevel gear (7032) meshed with the first bevel gear (7031), the first bevel gear (7031) is a missing gear, the first bevel gear (7031) is fixedly connected with the output shaft of the motor (701), and the second bevel gear (7032) is fixedly connected with the rotating part (702).

6. The protective housing for an infrared thermal imaging detector with a netted brush type structure according to claim 5, characterized in that, Also includes: The two limit rods (9) are mirror image arranged and fixedly connected to the rotating part (702), the connecting column (803) is provided as a convex rod near the eccentric side of the rotating shaft (801), the limit rod (9) is extruded with the convex rod on the connecting column (803), the cleaning brush (802) is in contact with the cleaning part (6), the connecting column (803) is limitingly rotatably connected with the rotating column (3), the connecting column (803) is provided with a convex, the rotating column (3) is provided with a groove, and the convex and the groove are limitingly matched, and the rotating part (702) is rotatably connected with the rotating column (3).

7. The protective housing for an infrared thermal imaging detector with a netted brush type structure according to claim 6, characterized in that, The width of the cleaning brush (802) is greater than the maximum distance between the rotating shaft (801) and the arc surface on the cleaning part (6).

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