CN217763823U - Purifying device - Google Patents

Abstract

The utility model relates to a purification device, include at least: the air purifier comprises a box body, a first air flow channel and a second air flow channel, wherein at least one side of the box body is provided with the first air flow channel, and at least the other side of the box body is provided with the second air flow channel, and air to be purified flows in through the first air flow channel and flows out through the second air flow channel; the ultraviolet lamp and the fan are arranged in the box body, the ultraviolet lamp is used for sterilizing and disinfecting air to be purified, at least one purifying layer is arranged in the box body, the purifying layer can be arranged between the ultraviolet lamp and the fan in a mode of decomposing harmful substances by contacting the air to be purified under the irradiation of the ultraviolet lamp, and/or the at least one purifying layer is arranged in the through hole of the first mounting plate in a mode of enabling the air to be purified to flow spirally. The utility model discloses a combination of ultraviolet ray, photocatalyst and nanofiber membrane filter media is being greater than traditional single new trend system of melt-blown fabric far away in the efficiency that removes formaldehyde, degerming, dustproof aspect.

Description

Purifying device

Technical Field

The utility model relates to a purifier technical field especially relates to a purifier.

Background

The formaldehyde is a colorless gas with special irritation, researches show that the formaldehyde is a substance with higher toxicity, the formaldehyde can irritate eyes, nasal cavities and respiratory tracts to cause anaphylactic reaction when being contacted with the formaldehyde for a short time, the formaldehyde can increase the risks of carcinogenesis and teratogenesis when being contacted with the formaldehyde for a long time, and the formaldehyde becomes one of serious atmospheric pollutants at present. It is common to keep the room ventilated after decoration, but this way formaldehyde removal is slow and therefore various formaldehyde purification devices have been provided in the prior art.

CN209630965U discloses a be used for indoor formaldehyde purification device, the on-line screen storage device comprises a base, one side of base is provided with the leakage fluid dram, first formaldehyde purification board and second formaldehyde purification board are installed respectively to the top middle part and the end of base, the inner chamber of first formaldehyde purification board and second formaldehyde purification board all is provided with the active carbon filler, the cover of breathing in is installed to the top front end of base, formaldehyde decomposition liquid storage chamber is installed on the top of the cover of breathing in, formaldehyde decomposition liquid storage chamber's one end is installed and is annotated the liquid mouth, formaldehyde decomposition liquid storage chamber's bottom is installed the shower nozzle, the fan cover is installed in the front of the cover of breathing in. The utility model discloses set up to the box structure, the structure is small and exquisite, conveniently carries, and this purifier forms through first formaldehyde purifying plate, second formaldehyde purifying plate, the cover of breathing in and the mutual concatenation combination of base, and easy to assemble dismantles, carries after convenient the dismantlement.

CN 21209505U discloses an indoor formaldehyde purification device, including formaldehyde purification case, air inlet, getter device, primary filter screen, high-efficient air cleaner, bamboo charcoal adsorbed layer, air freshening device, exhaust hole, purification control screen, connecting rod, plant place the platform and remove the support slot, getter device locates in the formaldehyde purification case, high-efficient air cleaner locates in the formaldehyde purification case, the bamboo charcoal adsorbed layer is located in the formaldehyde purification case, the air freshening device pull is located on the formaldehyde purification case. The utility model belongs to the technical field of formaldehyde purification, specifically an indoor formaldehyde purification device, the effectual shortcoming that mostly is ventilation treatment when carrying out formaldehyde purification to the indoor environment in having solved present market, stay fragrant device through the setting and also can fresh the room air when purifying formaldehyde, combine formaldehyde purification and pergola simultaneously, also can realize the effect of beautifying in the purification, be a very practical indoor formaldehyde purification device.

However, the purification device provided by the prior art still has the technical problems of low formaldehyde decomposition and purification efficiency, easy attenuation of the dust and particle filtering effect due to the influence of the material of the filtering membrane, and the like. Accordingly, there remains a need in the art for improvements in at least one or more of these areas.

Furthermore, on the one hand, due to the differences in understanding to those skilled in the art; on the other hand, since the inventor has studied a lot of documents and patents while making the present invention, but the space is not limited to the details and contents listed, however, this is by no means the present invention does not have the features of these prior arts, but the present invention has all the features of the prior arts, and the applicant reserves the right to increase the related prior arts in the background art.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a purifier aims at solving at least one or more technical problem that exist among the prior art.

In order to achieve the above object, the present invention provides a purification device, which at least comprises: the air purifier comprises a box body, a first air flow channel and a second air flow channel, wherein at least one side of the box body is provided with the first air flow channel, and at least the other side of the box body is provided with the second air flow channel, and air to be purified flows in through the first air flow channel and flows out through the second air flow channel; the ultraviolet lamp and the fan are arranged in the box body, wherein the ultraviolet lamp is used for sterilizing and disinfecting the air to be purified.

Preferably, at least one purification layer is installed in the box body, wherein the purification layer can be installed between the ultraviolet lamp and the fan in a manner of contacting with the air to be purified under the irradiation of the ultraviolet lamp to decompose harmful substances, and/or the at least one purification layer is installed in the through hole of the first installation plate in a manner of enabling the air to be purified to spirally flow.

Preferably, at least one filter membrane is mounted in the housing, wherein the filter membrane can be mounted in the first gas flow channel and/or the second gas flow channel substantially perpendicular and/or parallel to the gas flow direction, wherein the filter membrane is made of a fibrous membrane.

Preferably, be provided with control module in the box, control module electric connection is in first mounting panel, and wherein, control module includes detecting element and processing unit, and detecting element can detect the gas concentration in the purifier operational environment to with detection data transmission to processing unit.

Preferably, the control module further comprises a power supply unit electrically connected to the ultraviolet lamp, the detection unit and the management unit.

Preferably, a storage chamber is installed in the case, and the storage chamber is disposed on an inner wall surface of the case in such a manner as to deliver water vapor to the first gas flow passage.

Preferably, at least one conduit is connected to the outer side of the reservoir chamber, and the other end of the conduit is connected to the first gas flow channel.

Preferably, a plate body is connected to one end of the conduit in the first gas flow channel, wherein the plate body has a porous structure, so that the water vapor in the conduit will contact with the air to be purified when entering the first gas flow channel through the plate body.

Preferably, the ultraviolet lamp sets up in first mounting panel one side, and wherein, first mounting panel surface clearance is provided with a plurality of through-holes that are used for the circulation of gas.

Preferably, at least one screen is further installed in the first gas flow channel and/or the second gas flow channel, and is arranged on one side of the filter membrane in a manner of being substantially vertical and/or parallel to the gas flow direction.

Preferably, the fan is installed on the second mounting panel, and a logical groove that is used for connecting the fan is seted up to second mounting panel local position department.

The beneficial technical effects of the utility model include following one or more:

1. the utility model discloses be provided with the photocatalyst net of making by materials such as superfine anatase type nanometer TiO2, its decomposition capacity to VOC gases such as formaldehyde is superior to ordinary photocatalyst material greatly.

2. The utility model discloses an ultraviolet lamp is in the air inlet rear end, can avoid the ultraviolet ray loss to reduce the long-time harm to the human body of using of commercially available ultraviolet sterilization equipment.

3. The filtering membrane made of the nanofiber membrane is arranged at the air inlet and the air outlet to replace the traditional melt-blown fabric, so that the problem that the filtering performance of the melt-blown fabric is easily attenuated quickly due to humidity and time is effectively solved.

4. The utility model discloses a combination of ultraviolet ray, photocatalyst and nanofiber membrane filter media is being greater than traditional single new trend system of melt-blown fabric far away in the efficiency that removes formaldehyde, degerming, dustproof aspect.

Drawings

FIG. 1 is a schematic view of the preferred structure of the present invention;

fig. 2 is a preferred circuit diagram of the control module.

List of reference numerals

1: first case 2: the control module 201: processing unit

202: the display unit 203: the communication unit 204: detection unit

205: the conversion unit 206: the power supply unit 3: first gas flow path

31: and (3) a filtering membrane 4: second gas flow passage 41: screen mesh

5: first mounting plate 6: an ultraviolet lamp 7: purification layer

8: second mounting plate 9: the fan 10: storage chamber

101: the conduit 102: a plate body 11: steering wheel

Detailed Description

This is described in detail below with reference to fig. 1-2.

In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are used in the orientation or positional relationship indicated on the basis of the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, it should also be understood that unless otherwise explicitly specified or limited, "over" or "under" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it is also to be understood that "first direction" and "second direction" herein refer to: with reference to the case 1, an axis along the horizontal direction of the case 1 is a "first direction", and an axis along the vertical direction of the case 1 is a "second direction".

The utility model provides a purification device, as shown in figure 1, can include one of following parts: the apparatus includes a cabinet 1, a control module 2, a first gas flow path 3, a filter membrane 31, a second gas flow path 4, a screen 41, a first mounting plate 5, an ultraviolet lamp 6, a purification layer 7, a second mounting plate 8, a fan 9, a storage chamber 10, a duct 101, a plate body 102, and a steering wheel 11.

According to a preferred embodiment shown in fig. 1, a substantially rectangular through groove is formed in a surface of one side of the substantially cubic or cylindrical case 1 in the first direction. The through slots may be provided in a transverse or longitudinal manner to at least one transverse surface of the cabinet 1. Preferably, the through groove may be provided at a bottom position of one side surface of the case 1 in the first direction. Further, the through groove can serve as a first gas flow channel 3 for the entry of air to be purified.

According to a preferred embodiment shown in fig. 1, at least one screen 41 is mounted in the first gas flow channel 3. Further, the screen 41 is installed at a position close to the outer side surface of the case 1. The screen 41 can primarily filter particles, dust, and the like contained in the air to be purified, which first enters the purification apparatus, to reduce the particle dust content of the air to be purified. And the mesh structure of the mesh 41 enables the air to be purified to uniformly flow into the inside of the apparatus.

According to a preferred embodiment shown in fig. 1, at least one filter membrane 31 is also mounted in the first gas flow channel 3. Preferably, filter membrane 31 may be mounted inside screen 41. The filtering membrane 31 is made of a nanofiber membrane filtering material, fibers of the nanofiber membrane filtering material are about 1/10 of those of melt-blown cloth, the pore diameter is about 0.2-0.3 micrometer, and the nanofiber membrane filtering material can replace the traditional melt-blown cloth filtering material, so that the problem that the filtering performance of the melt-blown cloth is easily attenuated quickly by humidity and time is effectively solved. Before air is discharged, air to be purified is filtered by the nanofiber membrane, and the nanofiber membrane can effectively filter harmful substances such as bacteria and dust so as to reduce harm to human bodies.

According to a preferred embodiment shown in fig. 1, a substantially rectangular through groove is also formed in the upper surface of the casing 1 in the second direction. Further, the through grooves may be provided on the upper surface of the cabinet 1 in a transverse or longitudinal manner. Preferably, the through groove may be provided at a lateral position of the upper surface of the cabinet 1. Further, the through groove can serve as a second gas flow passage 4 for the outflow of purge air.

According to a preferred embodiment shown in fig. 1, at least one screen 41 and filter membrane 31 are also mounted in second gas flow channel 4. The screen 41 and the filter membrane 31 are installed in this order from top to bottom. The purified air is processed by the filter membrane 31 and then is filtered for the second time by the screen 41, so that the content of harmful dust particles is reduced again, and the stimulation and damage to the human body are reduced. Preferably, the arrangement of the screen 41 and the filtering membrane 31 is adopted at the first gas flow channel 3 and the second gas flow channel 4, so as to respectively perform a plurality of different levels of filtering treatments on the air before purification and the air after purification, so that the gas flowing out of the purification device is purer and milder.

According to a preferred embodiment shown in fig. 1, a first mounting plate 5, which is substantially rectangular or polygonal, is arranged horizontally or vertically inside the tank 1. A first mounting plate 5 is mounted adjacent to the first gas flow channel 3. Preferably, the first mounting plate 5 may be a circuit board containing electrical components. A plurality of approximately circular or rectangular through holes are arranged on the surface of the first mounting plate 5 in a staggered mode according to a certain gap. The air to be purified, which enters the apparatus from the first gas flow path 3, can pass through the through holes of the first mounting plate 5 to enter the subsequent purification treatment area after being filtered and dedusted by the screen 41 and the filter membrane 31. Preferably, the through holes are provided on the first mounting plate 5 in an equidistant manner to change the preliminarily treated air to be purified into a uniform air flow.

According to a preferred embodiment shown in fig. 1, a plurality of ultraviolet lamps 6 are mounted on the surface of the first mounting plate 5 at positions substantially outside the circumferential direction of the through-hole. Further, the ultraviolet lamps 6 may be installed at both sides of the first installation plate 5. When the air to be purified flows in from the first air flow channel 3, the ultraviolet lamp 6 can sterilize and disinfect the air to be purified, namely, the DNA of microorganisms contained in the air to be purified is destroyed, so that the air to be purified loses the functions of reproduction and self-replication. Preferably, flat mirrors may be mounted on the upper and lower inner wall surfaces of the case 1 or the inner wall surface in the gas flow direction. Because ultraviolet lamp 6 can take place the ultraviolet ray loss, consequently when treating the air-purifying and disinfecting through ultraviolet lamp 6 irradiation, can gather together again after the ultraviolet ray warp reflection that disperses to the edge through the level crossing to make as much ultraviolet ray as possible can shine in the purification area, thereby increase the ultraviolet ray and treat the coverage area of air-purifying, finally improve ultraviolet lamp 6 sterile efficiency and effect of disinfecting.

According to a preferred embodiment shown in fig. 1, a control module 2 is electrically connected to the surface of the first mounting plate 5. Further, the control module 2 may include a processing unit 201, a display unit 202, a communication unit 203, a detection unit 204, a conversion unit 205, and a power supply unit 206, wherein the power supply unit 206 is electrically connected to the ultraviolet lamp 6. The communication unit 203 may include a WIFI module, a bluetooth module, and the like. Further, the detection unit 204 is a high-precision gas concentration sensor capable of measuring and monitoring the mass fraction or percentage content of harmful gases such as formaldehyde in the device operating environment. Preferably, the detection unit 204 is an environmental sensor, for example of the type BME 680.

According to a preferred embodiment, the detection unit 204 sends information about the gas concentration to the conversion unit 205, and after the conversion unit 205 converts it into electrical information, the information is sent to the processing unit 201 for data analysis and processing. When the concentration of the harmful gas exceeds a prescribed standard threshold, the processing unit 201 can drive the power supply unit 206 to operate the ultraviolet lamp 6, while adjusting the emission intensity of the ultraviolet light 6 by changing the output power of the power supply unit 206 based on the concentration of the harmful gas. On the other hand, the processing unit 201 may transmit the data on the gas concentration collected by the detection unit 204 to the communication unit 203, and transmit the detection data to an external mobile terminal through the communication unit 203.

According to a preferred embodiment shown in fig. 1, a second mounting plate 8 is arranged horizontally or vertically inside the tank 1. A rectangular empty groove is provided at a position substantially in the middle of the second mounting plate 8. Further, the second mounting plate 8 is mounted with a fan 9 through a hollow slot in the middle thereof. Preferably, the fan 9 is electrically connected to the power supply unit 206 in the control module 2, and the processor can adjust the rotation speed of the fan 9 based on the degree of the harmful gas collected by the detection unit 204. The fan 9 has substantially arc-shaped blades. When the air to be purified flows into the purifying device through the first gas flow channel 3, the blades of the fan 9 respectively have an angle with the axial direction and the radial direction, and a mechanical force is wedged into the air molecular group during rotation to push the air to move towards the normal direction of the concave surface of the blades. When the air flows through the fan 9, the fan 9 delivers a uniform air flow to the second air flow path 4 and performs a plurality of filtering processes at the second air flow path 4.

According to a preferred embodiment shown in fig. 1, a purification layer 7 is arranged horizontally or vertically in the tank 1. Further, the purification layer 7 is disposed between the fan 9 and the first mounting plate 5. Preferably, the purification layer 7 is made of ultrafine anatase type nano TiO with a particle size of 50nm or less ₂ Made of photocatalyst material substantiallyA spongy photocatalyst net which can rapidly decompose harmful gases such as formaldehyde in the air into H under the irradiation of the ultraviolet lamp 6 ₂ O and CO ₂ . The photocatalyst net with a specific crystal form, which is prepared by using the photocatalyst material with the ultra-fine grain diameter through a doping technology, has the capability of decomposing VOC gas such as formaldehyde and the like which is far better than that of the common photocatalyst material.

According to a preferred embodiment, the purification layer 7 may also be a plurality of photocatalyst nets mounted in through holes on the surface of the first mounting plate 5. Preferably, the photocatalyst net located in the through hole on the surface of the first mounting plate 5 may have a substantially double-spiral structure, and the photocatalyst net having a double-spiral structure is disposed in the through hole in a manner parallel to the gas flow direction. Specifically, when gas passes through the photocatalyst net, the gas flows in a spiral ascending or advancing mode in the spiral channel, which is beneficial to increasing the contact area and the contact time of the gas and the photocatalyst net, thereby improving the decomposition rate and the effect of the purification layer 7 on VOC gases such as formaldehyde.

According to a preferred embodiment shown in fig. 1, a substantially rectangular slot may be formed in a surface of the housing 1, and a storage chamber 10 for containing water may be detachably installed in the rectangular slot. Preferably, the reserve chamber 10 is installed on the inner wall surface of the case on the side where the first gas flow path 3 is located. Further, a conduit 101 is connected to the end of the storage chamber 10 close to the first gas flow channel 3. The other end of the conduit 101 is connected to the wall surface of the first gas flow passage 3. On the other hand, a plate body 102 is mounted on the inner wall surface of the first gas flow path 3, and one side of the plate body 102 is connected to the conduit 101. Preferably, the plate body 102 may be a ceramic plate having several fine through holes. While the aqueous solution in the manually controlled reservoir 10 flows through the conduit 102 toward the plate body 102, the air to be purified flowing in from the first gas flow path 3 is absorbed by the water vapor on the surface of the plate body 102. When the air to be purified with water vapor contacts the purifying layer 7 made of a photocatalyst material, hydroxyl radicals are generated.

According to a preferred embodiment shown in fig. 1, at least one steering wheel 11 is provided at each end of the bottom of the case 1 in the second direction. Preferably, the steering wheel 11 can be electrically connected to the power supply unit 206 in the control module 2. Preferably, the processing unit 201 is capable of driving the movement of the steering wheel 11 through the power supply unit 206 based on the harmful gas collected by the detection unit 204, so as to drive the purification device to purify the gas in the operating environment in a moving manner.

For the convenience of understanding, the working principle and the using method of the purifying device of the present invention are discussed.

When using the purification device provided in the present application, the device is first activated, and the external air enters the purification device from the first gas flow channel 3, and is first primarily filtered by the screen 41, and then secondarily filtered by the filter membrane 31, so as to reduce the content of dust and particles by different levels of filtration methods. On the other hand, the reservoir chamber 10 is manually adjusted to inject water vapor into the first gas flow channel 3 at the same time as the gas enters the device. Further, the air to be purified with water vapor is sterilized by the ultraviolet lamp 6, and then the VOC gas such as formaldehyde contained in the air to be purified is further decomposed into H after contacting the purification layer 7 ₂ O and CO ₂ And the like. The air to be purified after the solid filtering, the microbial killing and the decomposition of the harmful material is filtered again through the screen 41 and the filtering membrane 31 when flowing out through the second gas flow passage 4, thereby providing a purer and gentler gas.

The utility model provides a purification device, which adopts a photocatalyst net made of materials such as superfine anatase type nanometer TiO2, and the decomposition capability of the photocatalyst net on VOC gases such as formaldehyde is greatly superior to that of common photocatalyst materials; meanwhile, the ultraviolet lamp is positioned at the rear end of the air inlet, so that the ultraviolet light can be prevented from dissipating, and the harm of commercial ultraviolet sterilization equipment to a human body after being used for a long time is reduced; in addition, the filtering membranes made of the nanofiber membranes are arranged at the air inlet and the air outlet so as to replace the traditional melt-blown cloth, and the problem that the filtering performance of the melt-blown cloth is easily attenuated quickly by humidity and time is effectively solved.

It should be noted that the above-mentioned embodiments are exemplary, and those skilled in the art can devise various solutions in light of the present disclosure, which are also within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present specification and drawings are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims (10)

1. A purification device comprising at least:

a box body (1) at least one side of which is provided with a first gas flow channel (3) and at least the other side of which is provided with a second gas flow channel (4), wherein the air to be purified flows in through the first gas flow channel (3) and flows out through the second gas flow channel (4),

an ultraviolet lamp (6) and a fan (9) which are arranged in the box body (1), wherein the ultraviolet lamp (6) is used for sterilizing and disinfecting the air to be purified,

it is characterized in that the preparation method is characterized in that,

at least one purification layer (7) is installed in the tank (1), wherein,

the purification layer (7) can be mounted between the UV lamps (6) and the fan (9) in such a way that it is in contact with the air to be purified under the irradiation of the UV lamps (6) to decompose harmful substances, and/or at least one of the purification layers (7) is mounted in a through hole of the first mounting plate (5) in such a way that it enables the air to be purified to flow in a spiral.

2. A purification device comprising at least:

a box body (1) which is provided with a first gas flow channel (3) at least on one side and a second gas flow channel (4) at least on the other side, wherein air to be purified flows in through the first gas flow channel (3) and flows out through the second gas flow channel (4),

an ultraviolet lamp (6) and a fan (9) which are arranged in the box body (1),

it is characterized in that the preparation method is characterized in that,

at least one layer of filtering membrane (31) is arranged in the box body (1), wherein,

the filter membrane (31) can be mounted in the first gas flow channel (3) and/or the second gas flow channel (4) in a perpendicular and/or parallel manner to the gas flow direction, wherein the filter membrane (31) is made of a fibrous membrane.

3. Purification device according to claim 1 or 2, wherein a control module (2) is arranged in the tank (1), the control module (2) being electrically connected to the first mounting plate (5), wherein,

the control module (2) comprises a processing unit (201) and a detection unit (204), wherein the detection unit (204) can detect the gas concentration in the operating environment of the purification device and send the detection data to the processing unit (201).

4. Purification device according to claim 3, wherein the control module (2) further comprises at least a power supply unit (206), the power supply unit (206) being electrically connected to the UV lamp (6), the detection unit (204) and the processing unit (201).

5. The purification apparatus according to claim 1 or 2, wherein a reservoir chamber (10) is installed in the tank (1), and the reservoir chamber (10) is provided to an inner wall surface of the tank (1) in such a manner as to supply moisture to the first gas flow path (3).

6. Purification device according to claim 5, wherein at least one conduit (101) is connected to the outer side of the reservoir (10), the other end of the conduit (101) being connected to the first gas flow channel (3).

7. Purification device according to claim 6, wherein a plate body (102) is connected to the end of the conduit (101) located in the first gas flow channel (3), wherein the plate body (102) has a porous structure such that moisture in the conduit (101) will come into contact with the air to be purified when entering the first gas flow channel (3) via the plate body (102).

8. Purification device according to claim 1 or 2, wherein the ultraviolet lamp (6) is arranged on one side of the first mounting plate (5), wherein a plurality of through holes for gas circulation are arranged on the surface of the first mounting plate (5) in a clearance manner.

9. Purification apparatus according to claim 1 or 2, wherein at least one screen (41) is further installed in the first gas flow channel (3) and/or the second gas flow channel (4), and the screen (41) is arranged on one side of the filter membrane (31) in a manner perpendicular and/or parallel to the gas flow direction.

10. Purification apparatus according to claim 1 or 2, wherein the fan (9) is mounted on a second mounting plate (8), and a through groove for connecting the fan (9) is formed at a partial position of the second mounting plate (8).

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