Moisture absorber protection device

Abstract

The invention discloses a moisture absorber protection device, and relates to the technical field of moisture absorbers, and the moisture absorber protection device comprises a cleaning unit which comprises a pressing piece penetrating through the bottom of a first protection cover, a circular truncated cone block arranged on the inner side of the pressing piece, a second limiting block arranged on the inner side of the first protection cover, a push rod arranged in the pressing piece, and a sliding plate arranged on the inner side of the push rod; and the scraping plate is arranged at the top of the pressing piece. The moisture absorber has the beneficial effects that the moisture absorber can be protected through the arranged first protective cover, and the moisture absorption material is effectively prevented from being irradiated by ultraviolet rays and aged; and dust and impurities remaining in the breathing channel can be cleaned through the arranged cleaning unit, so that smoothness of the breathing channel is guaranteed, and normal use of equipment is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of desiccant, in particular to a desiccant protective device. Background Art

[0002] The intelligent maintenance-free desiccant is an air purification device designed for oil-immersed transformers or transformers. It is connected to the oil storage cabinet of the oil-immersed transformer or transformer. When the transformer oil volume expands or contracts due to changes in load or ambient temperature, the gas in the oil storage cabinet is forced to breathe through the desiccant in the maintenance-free desiccant to remove debris and moisture in the air and maintain the insulation strength of the transformer oil in the transformer or transformer. And when the desiccant is damp after long-term use, the maintenance-free desiccant has an automatic heating function to automatically remove the moisture in the desiccant, thereby achieving the purpose of maintenance-free desiccant.

[0003] Intelligent maintenance-free desiccant and transformer are mostly installed outdoors and need to be exposed to the sun for a long time. Long-term ultraviolet radiation may accelerate the aging of the desiccant material and affect its sealing performance. There is oil residue brought out during exhalation at the port of the breathing channel. Dust and pollutants in the outdoor environment may enter the desiccant through the breathing channel, easily adhere to the inner wall of the breathing duct, and cause blockage of the breathing channel, affecting the normal use of the desiccant. Summary of the invention

[0004] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0005] Therefore, an object of the present invention is to provide a desiccant protective device, which is designed to solve the problem that the desiccant needs to be exposed to the sun for a long time, which accelerates the aging of the desiccant material.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a desiccant protective device, comprising: a protective unit, including a first protective cover, a connecting sleeve arranged at the inner side of the bottom of the first protective cover, a first limit block arranged inside the first protective cover, and a second protective cover arranged at the top of the first protective cover;

[0007] A cleaning unit, comprising a pressing member penetrating the bottom of the first protective cover, a truncated cone block disposed inside the pressing member, a second limit block disposed inside the first protective cover, a push rod disposed inside the pressing member, a sliding plate disposed inside the push rod, and a scraper disposed on the top of the pressing member;

[0008] A desiccant is arranged inside the first protective cover, and the end of the pressing piece penetrates into the inner side of the exhalation duct at the bottom of the desiccant.

[0009] As a preferred solution of the desiccant protective device of the present invention, the connecting sleeve comprises a limiting hole provided on its side wall, a C-shaped groove provided above the limiting hole, and a partition provided on the inner side of the connecting sleeve;

[0010] The first limiting block passes through the limiting hole and extends to the outside thereof, and the first protective cover and the connecting sleeve are fixed by the first limiting block;

[0011] The first protective cover is movably connected to the second protective cover.

[0012] As a preferred solution of the desiccant protective device of the present invention, the pressing member includes a connecting plate symmetrically arranged at its end, a semicircular block arranged at the end of the connecting plate, a first set of rods arranged at the top of the semicircular block, a spring arranged outside the first set of rods, and a second set of rods arranged at the bottom of the semicircular block;

[0013] The connecting plate passes through the first protective cover and extends to the inner side of the connecting sleeve;

[0014] The truncated cone block is arranged outside the second set of rods; the truncated cone block is slidably connected with the second set of rods.

[0015] As a preferred solution of the desiccant protective device of the present invention, wherein: the connecting plate includes a through hole opened on its side wall;

[0016] The through hole is adapted to the first limiting block; the first limiting block corresponds to the position of the limiting hole;

[0017] The second limiting block and the first limiting block are arranged alternately, and the second limiting block corresponds to the position of the C-shaped groove.

[0018] As a preferred solution of the desiccant protective device of the present invention, the first set of rods is connected to the second set of rods, and the push rod passes through the second set of rods and extends to the inner side of the first set of rods;

[0019] The push rod includes a rectangular groove penetrating through the side wall thereof, and a protrusion disposed at the end of the push rod;

[0020] The sliding plate includes a slider disposed on a side wall thereof;

[0021] The second set of rods includes an oblique groove formed on a side wall thereof;

[0022] The sliding plate is matched with the inclined slot, and the sliding plate passes through the inclined slot and extends to the outside thereof.

[0023] As a preferred solution of the moisture absorber protection device of the present invention, wherein: the rectangular groove corresponds to the position of the inclined groove, the sliding plate is adapted to the push rod, and the sliding plate passes through the rectangular groove and extends to the outside thereof;

[0024] The rectangular groove includes a slide groove opened on its inner wall;

[0025] The sliding block is matched with the sliding groove, and the sliding plate is slidably connected with the push rod.

[0026] As a preferred solution of the moisture absorber protection device of the present invention, wherein: the tracks of the inclined slot and the chute are staggered;

[0027] The sliding plate moves along the inner wall of the inclined groove to drive the push rod to move along the vertical direction;

[0028] The first set of rods includes a notch formed in a side wall thereof;

[0029] The scrapers are provided in multiple groups, and the multiple groups of scrapers are distributed in an array along the axis of the first set of rods;

[0030] The scraper passes through the notch and extends to the outside thereof.

[0031] As a preferred solution of the desiccant protective device of the present invention, wherein: the first limiting block passes through the limiting hole and extends to the inner side of the through hole;

[0032] The second limiting block is in contact with the outer side of the semicircular block;

[0033] One end of the spring is connected to the semicircular block, and the other end is connected to the partition;

[0034] There is a gap between the truncated cone block and the semicircular block.

[0035] As a preferred solution of the desiccant protection device of the present invention, wherein: the connecting plate is in contact with the end of the first limiting block;

[0036] The end of the second limiting block passes through the C-shaped groove and is inserted between the semicircular block and the truncated cone block;

[0037] The end of the second limit block contacts the end of the sliding plate, and the second limit block pushes the sliding plate to move and drives the push rod to move along the axis direction of the first sleeve rod.

[0038] As a preferred solution of the desiccant protective device of the present invention, wherein: the end of the second limit block contacts the side wall of the truncated cone block;

[0039] The truncated cone block is in contact with the semicircular block, and the end of the sliding plate penetrates into the inner side of the truncated cone block.

[0040] The beneficial effects of the present invention are as follows: the present invention can protect the desiccant by means of the first protective cover, thereby effectively preventing the hygroscopic material from being aged due to ultraviolet radiation; the dust and impurities remaining inside the breathing passage can be cleaned by means of the cleaning unit, thereby ensuring the patency of the breathing passage and thus ensuring the normal use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0042] Figure 1 It is a schematic diagram of the structure of the desiccant protective device.

[0043] Figure 2 A partial cross-sectional view of the first protective cover of the desiccant protective device.

[0044] Figure 3 Protective device for desiccant Figure 2 A magnified view of the local structure at A.

[0045] Figure 4 This is a schematic diagram of the connection structure between the second limit block and the semicircular block of the desiccant protection device.

[0046] Figure 5 Protective device for desiccant Figure 4 Enlarged view of the local structure at point B.

[0047] Figure 6 This is a schematic diagram of the connection structure between the second limit block and the truncated cone block of the desiccant protection device.

[0048] Figure 7 Schematic diagram of the explosion structure of the cleaning unit of the desiccant protection device.

[0049] Figure 8 Protective device for desiccant Figure 7 Enlarged view of the local structure at location C.

[0050] Fig. 9 This is a schematic diagram of the connection structure between the pressing piece and the scraper of the desiccant protective device.

[0051] Fig.10 Schematic diagram of the explosion structure of the pressing part and scraper of the desiccant protection device.

[0052] Fig.11 Protective device for desiccant Fig.10 Enlarged view of the local structure at D.

[0053] In the figure: 100, protection unit; 101, first protection cover; 102, connecting sleeve; 1021, limiting hole; 1022, C-shaped groove; 1023, partition; 103, first limiting block; 104, second protection cover; 200, cleaning unit; 201, pressing piece; 2011, connecting plate; 20111, through hole; 2012, semicircular block; 2013, first set of rods; 20131, notch; 2014, spring; 2015, second set of rods; 20151, inclined groove; 202, truncated cone block; 203, second limiting block; 204, push rod; 2041, rectangular groove; 20411, slide groove; 2042, protrusion; 205, sliding plate; 2051, slider; 206, scraper; 300, desiccant. DETAILED DESCRIPTION

[0054] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0055] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0056] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0057] Example 1

[0058] Reference Figures 1 to 8 , is the first embodiment of the present invention, which provides a desiccant protection device, including a protection unit 100, including a first protective cover 101, a connecting sleeve 102 arranged on the inner side of the bottom of the first protective cover 101, a first limit block 103 arranged inside the first protective cover 101, and a second protective cover 104 arranged on the top of the first protective cover 101; a desiccant 300 is arranged on the inner side of the first protective cover 101, and the end of the pressing piece 201 passes through the inner side of the exhalation duct at the bottom of the desiccant 300.

[0059] Preferably, the first protective cover 101 and the second protective cover 104 are both made of UV-proof materials, which can protect the hygroscopic material inside the desiccant 300 during UV irradiation; the connecting sleeve 102 and the first protective cover 101 are movably connected, and the position between the connecting sleeve 102 and the first protective cover 101 can be fixed by the first limit block 103; and the inner sides of the connecting sleeve 102 and the second protective cover 104 are provided with internal thread structures, and the desiccant 300 is provided with external thread structures that are compatible with the connecting sleeve 102 and the second protective cover 104 respectively at corresponding positions; and the connecting sleeve 102 is threadedly connected to the breathing channel of the desiccant 300; and a large number of ventilation holes are provided at the bottom of the first protective cover 101.

[0060] Furthermore, the cleaning unit 200 includes a pressing piece 201 passing through the bottom of the first protective cover 101, a frustum block 202 arranged on the inner side of the pressing piece 201, a second limit block 203 arranged on the inner side of the first protective cover 101, a push rod 204 arranged inside the pressing piece 201, a sliding plate 205 arranged on the inner side of the push rod 204, and a scraper 206 arranged on the top of the pressing piece 201.

[0061] Preferably, the pressing piece 201 passes through the bottom of the first protective cover 101 and extends to the inner side of the connecting sleeve 102, and the pressing piece 201 and the truncated cone block 202 are both arranged on the inner side of the connecting sleeve 102; the second limit block 203 can limit the position of the pressing piece 201, thereby ensuring that the position between the pressing piece 201 and the connecting sleeve 102 is fixed; the end of the second limit block 203 pushes the sliding plate 205 to move, which can drive the push rod 204 to move along the vertical direction; the push rod 204 moves and pushes the scraper 206 to move, so that the scraper position of the scraper 206 contacts the breathing passage inside the desiccant 300, and the scraper 206 can be driven to rotate by rotating the first protective cover 101, so that the impurities remaining on the inner wall of the breathing passage can be cleaned by the scraper 206.

[0062] In summary, the present invention can protect the desiccant by providing the first protective cover, effectively preventing the hygroscopic material from aging due to ultraviolet radiation; the dust and impurities remaining inside the breathing passage can be cleaned by providing the cleaning unit, thereby ensuring the patency of the breathing passage and ensuring the normal use of the equipment.

[0063] Example 2

[0064] Reference Figure 1 to Figure 5 and Figure 6 to Figure 11, which is the second embodiment of the present invention, and which is different from the first embodiment in that: it also includes, in the previous embodiment, the desiccant protection device includes, the connecting sleeve 102 includes a limiting hole 1021 opened on its side wall, a C-shaped groove 1022 opened above the limiting hole 1021, and a partition 1023 arranged on the inner side of the connecting sleeve 102; the first limiting block 103 passes through the limiting hole 1021 and extends to the outside thereof, and the first protective cover 101 and the connecting sleeve 102 are fixed by the first limiting block 103; the first protective cover 101 and the second protective cover 104 are movably connected.

[0065] Preferably, the first limit block 103 passes through the limit hole 1021 and extends to the inner side thereof. The first limit block 103 can be set to fix the position of the connecting sleeve 102 and the first protective cover 101, and the rotation of the first protective cover 101 drives the connecting sleeve 102 to rotate; during the installation of the first protective cover 101, the first protective cover 101 and the second protective cover 104 are rotated synchronously, and the connecting sleeve 102 and the second protective cover 104 are both threadedly connected to the desiccant 300; the limit hole 1021 and the C-shaped groove 1022 are arranged in a staggered manner along the axial direction of the connecting sleeve 102.

[0066] Furthermore, the pressing member 201 includes a connecting plate 2011 symmetrically arranged at its end, a semicircular block 2012 arranged at the end of the connecting plate 2011, a first set of rods 2013 arranged at the top of the semicircular block 2012, a spring 2014 arranged on the outside of the first set of rods 2013, and a second set of rods 2015 arranged at the bottom of the semicircular block 2012; the connecting plate 2011 passes through the first protective cover 101 and extends to the inside of the connecting sleeve 102; the truncated cone block 202 is arranged on the outside of the second set of rods 2015; the truncated cone block 202 and the second set of rods 2015 are slidably connected.

[0067] It should be noted that the connecting plate 2011 penetrates to the inner side of the first protective cover 101, and the pressing piece 201 is arranged on the outer side of the bottom of the first protective cover 101, so as to better facilitate the staff to press the connecting plate 2011 to move; the bottom surface of the semicircular block 2012 is arranged opposite to the end surface of the truncated cone block 202 with a larger diameter, and the diameter of the truncated cone block 202 is slightly larger than the diameter of the semicircular block 2012; the first set of rods 2013 is fixedly connected to the semicircular block 2012, and the diameter of the first set of rods 2013 is larger than the diameter of the second set of rods 2015; the truncated cone block 202 is sleeved on the outer side of the second set of rods 2015, and the truncated cone block 202 moves along the axial direction of the second set of rods 2015. The bottom of the second set of rods 2015 is connected with a limiting plate, and the set limiting plate can effectively prevent the truncated cone block 202 from slipping from the outer side of the second set of rods 2015.

[0068] Furthermore, the connecting plate 2011 includes a through hole 20111 opened on its side wall; the through hole 20111 is adapted to the first limit block 103; the first limit block 103 corresponds to the position of the limit hole 1021; the second limit block 203 and the first limit block 103 are arranged alternately, and the second limit block 203 corresponds to the position of the C-shaped groove 1022.

[0069] It should be noted that the bottom of the first limit block 103 is opened on the first inclined surface, and a second inclined surface is arranged at a position perpendicular to the first inclined surface. The first limit block 103 is arranged to pass through the limit hole 1021 and extend to the inner side of the through hole 20111; when the connecting plate 2011 moves, the side wall of the connecting plate 2011 can be used to squeeze the first limit block 103; so that the end of the first limit block 103 is immersed in the inner side of the limit hole 1021, so that the second inclined surface corresponds to the limit hole 1021, so that the rotation of the connecting sleeve 102 relative to the first protective cover 101 is no longer restricted;

[0070] The end of the first limit block 103 is connected with a spring, and a guide column is arranged inside the cavity of the first protective cover 101 accommodating the first limit block 103, so as to ensure that the first limit block 103 moves along a fixed track; the first limit block 103 and the second limit block 203 have the same setting structure;

[0071] The first limit block 103 and the second limit block 203 are arranged perpendicular to each other, and the first limit block 103 is located close to the bottom of the inner wall of the first protective cover 101, and the second limit block 203 is located close to the upper position inside the first protective cover 101. There is a certain height difference between the first limit block 103 and the second limit block 203.

[0072] Furthermore, the first set of rods 2013 and the second set of rods 2015 are connected, and the push rod 204 passes through the second set of rods 2015 and extends to the inner side of the first set of rods 2013; the push rod 204 includes a rectangular groove 2041 passing through its side wall, and a protrusion 2042 arranged at the end of the push rod 204; the sliding plate 205 includes a slider 2051 arranged on its side wall; the second set of rods 2015 includes an inclined groove 20151 opened on its side wall; the sliding plate 205 is adapted to the inclined groove 20151, and the sliding plate 205 passes through the inclined groove 20151 and extends to the outside thereof.

[0073] It should be noted that the push rod 204 passes through the second set of rods 2015 and extends to the inner side of the first set of rods 2013. The push rod 204 also passes through the semicircular block 2012 during the process of passing through the inner side of the first set of rods 2013. The rectangular groove 2041 provides a certain moving space for the movement of the sliding plate 205, ensuring that the sliding plate 205 can slide along the inner wall of the rectangular groove 2041. The inclined groove 20151 is arranged to match the sliding plate 205, thereby ensuring that the sliding plate 205 moves along the trajectory of the inner wall of the inclined groove 21051.

[0074] Furthermore, the rectangular groove 2041 corresponds to the position of the inclined groove 20151, the sliding plate 205 is adapted to the push rod 204, the sliding plate 205 passes through the rectangular groove 2041 and extends to its outside; the rectangular groove 2041 includes a sliding groove 20411 opened on its inner wall; the sliding block 2051 is adapted to the sliding groove 20411, and the sliding plate 205 and the push rod 204 are slidingly connected.

[0075] It should be noted that the rectangular groove 2041 corresponds to the inclined groove 20151, so that when the sliding plate 205 slides along the inner wall of the inclined groove 21051, the slider 2051 slides along the inner wall of the sliding groove 20411, and the sliding of the sliding plate 205 drives the push rod 204 to move in the vertical direction.

[0076] Furthermore, the trajectories of the inclined groove 20151 and the sliding groove 20411 are staggered; the sliding plate 205 moves along the inner wall of the inclined groove 20151 to drive the push rod 204 to move along the vertical direction; the first set of rods 2013 includes a notch 20131 opened on its side wall; the number of scrapers 206 is multiple groups, and the multiple groups of scrapers 206 are distributed in an array along the axis of the first set of rods 2013; the scrapers 206 pass through the notch 20131 and extend to its outside.

[0077] It should be noted that the inclined groove 20151 and the slide groove 20411 are staggered to ensure that the sliding plate 205 moves along the trajectory of the inclined groove 20151, and the slider 2051 is adapted to the slide groove 20411; thereby, the movement of the sliding plate 205 drives the push rod 204 to move along the axial direction of the first set of rods 2013; the side wall of the protrusion 2042 contacts the bottom of multiple groups of scrapers 206, and as the protrusion 2042 moves, the scraper 206 can be pushed to move, so that the scraper 206 contacts the inner wall of the breathing channel of the desiccant 300; thereby, the scraper 206 can be rotated to clean the impurities on the inner wall of the breathing channel of the desiccant 300.

[0078] When in use, under normal conditions, the first limit block 103 is pushed to move by the spring connected to its end, so that the first limit block 103 passes through the limit hole 1021 and extends to the inside of the through hole 20111; the first limit block 103 can be set to fix the position between the connecting sleeve 102 and the first protective cover 101; thereby ensuring that the first protective cover 101 and the connecting sleeve 102 can rotate synchronously; then adjust the connecting sleeve 102 and the second protective cover 104 to make them aligned with the dehumidifier 300 Then, the pressing member 201 is pushed to move, so that the pressing member 201 drives the first limiting block 103 to move, so that the inner wall of the through hole 20111 squeezes the end of the first limiting block 103, so that the end of the first limiting block 103 is immersed in the inner side of the limiting hole 1021; at the same time, the side wall of the semicircular block 2012 squeezes the end of the second limiting block 203, so that the end of the second limiting block 203 moves along its predetermined trajectory; when the semicircular block 2012 moves to above the end of the second limiting block 203, the second limiting block 203 The spring arranged at the end pushes the second limit block 203 to move, so that the second limit block 203 is inserted between the semicircular block 2012 and the truncated cone block 202; then the end of the second limit block 203 squeezes the sliding plate 205 to move, so that the sliding plate 205 pushes the push rod 204 to move; the push rod 204 moves along the axis direction of the first set of rods 2013, so that the protrusion 2042 pushes the scraper 206 to move, so that the scraper 206 contacts the inner wall of the breathing duct of the dehumidifier 300, so that the residual in the breathing duct can be removed. The impurities on the inside are cleaned; the first limit block 103 is immersed in the inner side of the limit hole 1021. At this time, the first protective cover 101 is rotated to move so that the end of the first limit block 103 can be squeezed through the inner wall of the limit hole 1021, so that the end of the first limit block 103 is immersed in the inner side of the first protective cover 101; thereby, the first protective cover 101 can drive the scraper 206 to rotate; the scraper 206 is arranged in three groups, thereby ensuring that the first protective cover 101 only needs to rotate one-third of the position to completely clean the inner wall of the breathing duct.

[0079] In summary, the second limit block 203 is squeezed and moved by the setting of the pressing piece 201, and the position of the pressing piece 201 can be limited by the setting of the second limit block 203, thereby ensuring that the position of the pressing piece 201 inside the first protective cover 101 is fixed; and then the pressing piece 201 is moved to squeeze the first limit block 103, so as to release the limit between the connecting sleeve 102 and the first protective cover 101, thereby ensuring that the first protective cover 101 can rotate relative to the connecting sleeve 102, and the impurities on the inner wall of the breathing duct can be cleaned by the rotation.

[0080] Example 3

[0081] Reference Figures 4 to 11, which is the third embodiment of the present invention, is different from the previous two embodiments in that: it includes: a first limit block 103 passes through the limit hole 1021 and extends to the inner side of the through hole 20111; the second limit block 203 contacts the outer side of the semicircular block 2012; one end of the spring 2014 is connected to the semicircular block 2012, and the other end is connected to the partition 1023; there is a gap between the truncated cone block 202 and the semicircular block 2012.

[0082] Preferably, the first limiting block 103 can fix the position between the first protective cover 101 and the connecting sleeve 102, so that the position between the first protective cover 101 and the desiccant 300 is relatively fixed; thereby ensuring that the protective device can provide better protection for 300.

[0083] Furthermore, the connecting plate 2011 contacts the end of the first limit block 103; the end of the second limit block 203 passes through the C-shaped groove 1022 and is inserted between the semicircular block 2012 and the truncated cone block 202; the end of the second limit block 203 contacts the end of the sliding plate 205, and the second limit block 203 pushes the sliding plate 205 to move and drives the push rod 204 to move along the axial direction of the first set of rods 2013.

[0084] Preferably, the second limit block 203 corresponds to the position of the C-shaped groove 1022. The C-shaped groove 1022 can ensure that the first protective cover 101 rotates to drive the scraper 206 to clean the impurities on the inner wall of the breathing passage. The second limit block 203 can be driven to move by rotating the first protective cover 101. The C-shaped groove 1022 can ensure the normal rotation of the second limit block 203; the end of the second limit block 203 is inserted between the semicircular block 2012 and the truncated cone block 202, and the second limit block 203 is inserted between the semicircular block 2012 and the truncated cone block 202. The surface of 03 contacts the bottom surface of the semicircular block 2012, and the second limit block 203 can limit the semicircular block 2012; under the action of the rebound force, the second limit block 203 pushes the sliding plate 205 to move, so that the movement of the sliding plate 205 drives the push rod 204 to move along the axial direction of the first set of rods 2013, so that the protrusion 2042 moves to squeeze the end of the scraper 206, and the scraper 206 can penetrate to its outside after being pressed; thereby, the end of the scraper 206 contacts the inner wall of the breathing duct.

[0085] Furthermore, the end of the second limiting block 203 contacts the side wall of the truncated cone block 202 ; the truncated cone block 202 contacts the semicircular block 2012 , and the end of the sliding plate 205 penetrates to the inner side of the truncated cone block 202 .

[0086] Preferably, the pressing member 201 is continued to be pushed to move, so that the pressing member 201 can drive the truncated cone block 202 to move, so that the truncated cone block 202 squeezes the end of the second limit block 203, and then the side wall of the truncated cone block 202 contacts the end of the second limit block 203; the cavity opened inside the truncated cone block 202 provides a certain spatial position for the movement of the sliding plate 205; then, under the action of the rebound force of the spring 2014, the connecting plate 2011 is pushed to move, so that the side wall of the truncated cone block 202 squeezes the end of the second limit block 203, so that the second limit block 203 moves along its specific trajectory. Since the diameter of the truncated cone block 202 is larger than the diameter of the semicircular block 2012, when the semicircular block 2012 moves to the position corresponding to the second limit block 203, the second limit block 203 will not limit the position of the semicircular block 2012; thereby, the pressing member 201 is reset.

[0087] When in use, when it is necessary to reset the pressing member 201, the pressing member 201 is continuously pushed to move, so that the end of the truncated cone block 202 squeezes the surface of the second limiting block 203, thereby causing the end of the second limiting block 203 to move under pressure, and then when the truncated cone block 202 corresponds to the side wall of the second limiting block 203, the semicircular block 2012 is pushed to move under the rebound force of the spring 2014, so that the semicircular block 2012 moves along the axis direction of the second sleeve rod 2015. The table block 202 moves, driving the truncated table block 202 to move along the second set of rods 2015, so that the top of the truncated table block 202 contacts the bottom of the semicircular block 2012; then the semicircular block 2012 is no longer limited by the second limit block 203, so that the pressing piece 201 is reset; then the first protective cover 101 can be rotated, and when the first limit block 103 corresponds to the position of the limit hole 1021, the first limit block 103 can limit the position between the connecting sleeve 102 and the first protective cover 101.

[0088] In summary, the position of the pressing piece 201 can be fixed by setting the second limit block 203, and at the same time, the sliding plate 205 can be pushed to move so that the scraper 206 is in an open state; it is more convenient for the staff to clean the inner wall of the breathing duct; during the movement of the pressing piece 201, the limit between the connecting sleeve 102 and the first protective cover 101 can be released, thereby ensuring that the first protective cover 101 rotates to drive the scraper 206 to clean the impurities on the inner wall of the breathing passage.

[0089] It is important to note 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 the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A desiccant protective device, characterized in that: include, A protection unit (100) comprises a first protection cover (101), a connecting sleeve (102) arranged on the inner side of the bottom of the first protection cover (101), a first limiting block (103) arranged inside the first protection cover (101), and a second protection cover (104) arranged on the top of the first protection cover (101); A cleaning unit (200), comprising a pressing piece (201) penetrating the bottom of the first protective cover (101), a truncated cone block (202) arranged inside the pressing piece (201), a second limit block (203) arranged inside the first protective cover (101), a push rod (204) arranged inside the pressing piece (201), a sliding plate (205) arranged inside the push rod (204), and a scraper (206) arranged on the top of the pressing piece (201); A desiccant (300) is arranged inside the first protective cover (101), and the end of the pressing member (201) penetrates to the inside of the exhalation duct at the bottom of the desiccant (300).

2. The desiccant protective device according to claim 1, characterized in that: The connecting sleeve (102) comprises a limiting hole (1021) provided on a side wall thereof, a C-shaped groove (1022) provided above the limiting hole (1021), and a partition plate (1023) provided on the inner side of the connecting sleeve (102); The first limiting block (103) passes through the limiting hole (1021) and extends to the outside thereof, and the first protective cover (101) and the connecting sleeve (102) are fixed via the first limiting block (103); The first protective cover (101) and the second protective cover (104) are movably connected.

3. The desiccant protective device according to claim 2, characterized in that: The pressing member (201) comprises a connecting plate (2011) symmetrically arranged at its end, a semicircular block (2012) arranged at the end of the connecting plate (2011), a first set of rods (2013) arranged at the top of the semicircular block (2012), a spring (2014) arranged outside the first set of rods (2013), and a second set of rods (2015) arranged at the bottom of the semicircular block (2012); The connecting plate (2011) passes through the first protective cover (101) and extends to the inner side of the connecting sleeve (102); The truncated cone block (202) is arranged outside the second set of rods (2015); the truncated cone block (202) and the second set of rods (2015) are slidably connected.

4. The desiccant protective device according to claim 3, characterized in that: The connecting plate (2011) comprises a through hole (20111) opened on a side wall thereof; The through hole (20111) is adapted to the first limiting block (103); the first limiting block (103) and the limiting hole (1021) are located correspondingly; The second limit block (203) and the first limit block (103) are arranged alternately with each other, and the second limit block (203) corresponds to the position of the C-shaped groove (1022).

5. The desiccant protective device according to claim 4, characterized in that: The first set of rods (2013) and the second set of rods (2015) are connected to each other, and the push rod (204) passes through the second set of rods (2015) and extends to the inside of the first set of rods (2013); The push rod (204) comprises a rectangular groove (2041) penetrating through a side wall thereof, and a protrusion (2042) arranged at the end of the push rod (204); The sliding plate (205) comprises a sliding block (2051) arranged on a side wall thereof; The second rod (2015) comprises an inclined groove (20151) formed on a side wall thereof; The sliding plate (205) is adapted to the inclined groove (20151), and the sliding plate (205) passes through the inclined groove (20151) and extends to the outside thereof.

6. The desiccant protective device according to claim 5, characterized in that: The rectangular groove (2041) corresponds to the position of the inclined groove (20151), the sliding plate (205) is adapted to the push rod (204), and the sliding plate (205) penetrates the rectangular groove (2041) and extends to the outside thereof; The rectangular groove (2041) includes a slide groove (20411) opened on its inner wall; The sliding block (2051) is adapted to the sliding groove (20411), and the sliding plate (205) is slidably connected to the push rod (204).

7. The desiccant protective device according to claim 6, characterized in that: The tracks of the inclined groove (20151) and the sliding groove (20411) are arranged in an interlaced manner; The sliding plate (205) moves along the inner wall of the inclined groove (20151) to drive the push rod (204) to move along the vertical direction; The first set of rods (2013) comprises a notch (20131) formed on a side wall thereof; The scrapers (206) are in multiple groups, and the multiple groups of scrapers (206) are distributed in an array along the axis of the first set of rods (2013); The scraper (206) passes through the notch (20131) and extends to the outside thereof.

8. The desiccant protective device according to claim 7, characterized in that: The first limiting block (103) passes through the limiting hole (1021) and extends to the inner side of the through hole (20111); The second limiting block (203) is in contact with the outer side of the semicircular block (2012); One end of the spring (2014) is connected to the semicircular block (2012), and the other end is connected to the partition (1023); There is a gap between the truncated cone block (202) and the semicircular block (2012).

9. The desiccant protective device according to claim 8, characterized in that: The connecting plate (2011) is in contact with the end of the first limiting block (103); The end of the second limiting block (203) passes through the C-shaped groove (1022) and is inserted between the semicircular block (2012) and the truncated cone block (202); The end of the second limit block (203) contacts the end of the sliding plate (205), and the second limit block (203) pushes the sliding plate (205) to move, thereby driving the push rod (204) to move along the axis direction of the first sleeve rod (2013).

10. The desiccant protective device according to claim 9, characterized in that: The end of the second limiting block (203) is in contact with the side wall of the truncated cone block (202); The truncated cone block (202) is in contact with the semicircular block (2012), and the end of the sliding plate (205) penetrates into the inner side of the truncated cone block (202).

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