Filtering device and printing equipment

Abstract

The utility model provides a filtering device and printing equipment, and the filtering device comprises a box body which comprises a containing cavity; the filter part is mounted in the accommodating cavity and used for filtering waste gas, and the accommodating cavity is divided into a filter cavity and a waste gas cavity by the filter part; the gas inlet is formed in the wall surface of the box body and is communicated with the waste gas cavity; the air outlet is formed in the wall surface of the box body and is communicated with the filtering cavity; the air inlet is opposite to the top wall of the filtering piece, and the thickness of the top wall of the filtering piece is smaller than that of the side wall of the filtering piece; the fixing part is connected to the wall surface of the box body and is used for fixing the filtering part; the fixing piece comprises a connecting part connected with the wall surface of the box body; the first limiting plate is connected with the connecting part; and the second limiting plate is connected with the connecting part. The filtering device can accelerate the flowing speed of waste gas into the filtering cavity, improves the waste gas filtering efficiency of the filtering device, and avoids the problems that the air pressure in the waste gas cavity is too large and external waste gas is difficult to flow into the filtering device due to excessive waste gas storage.

Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to a filtering device and a printing equipment. Background Art

[0002] In the filtering device in the prior art, a filter element for filtering is arranged in the box body. However, due to the large size of the filter element, the air pressure in the box body is easily too low, and the gas is difficult to be discharged. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art or related technology.

[0004] Therefore, the first object of the present invention is to provide a filtering device.

[0005] The second purpose of the utility model is to provide a printing device.

[0006] To achieve at least one of the above-mentioned purposes, according to the first aspect of the utility model, a filtering device is proposed, comprising: a box body, comprising a accommodating chamber; a filter element, installed in the accommodating chamber, the filter element being used to filter exhaust gas, and the filter element dividing the accommodating chamber into a filter chamber and an exhaust gas chamber; an air inlet, arranged on the wall of the box body, and the air inlet is connected to the exhaust gas chamber; an air outlet, arranged on the wall of the box body, and the air outlet is connected to the filter chamber; wherein the air inlet is arranged opposite to the top wall of the filter element, and the thickness of the top wall of the filter element is less than the thickness of the side wall of the filter element; a fixing element, connected to the wall of the box body, and the fixing element is used to fix the filter element; the fixing element comprises: a connecting part, connected to the wall of the box body; a first limiting plate, connected to the connecting part; and a second limiting plate, connected to the connecting part.

[0007] The present application proposes a filtering device, including a housing and a filter element, wherein the housing includes a receiving chamber, the receiving chamber is used to install the filter element, and the filter element is used to filter the exhaust gas. Specifically, the filter element is detachably installed in the receiving chamber, and when the filter element is installed in the receiving chamber, the filter element separates the receiving chamber into a filter chamber and an exhaust gas chamber, and the filter chamber and the exhaust gas chamber are not connected to each other. After entering the filtering device, the exhaust gas first enters the exhaust gas chamber, and then enters the filter chamber after being filtered by the filter element. The filter chamber is used to accommodate the gas filtered by the filter element. Since the filter chamber and the exhaust gas chamber are separated from each other by the filter element, it can be prevented that the filtered exhaust gas is contaminated by the unfiltered exhaust gas.

[0008] Furthermore, the filter device includes an air inlet and an air outlet, and the air inlet and the air outlet are both arranged on the wall of the box body. The air inlet is connected to the exhaust gas cavity, and the air outlet is connected to the filter cavity. The exhaust gas first enters the exhaust gas cavity in the accommodating cavity through the air inlet, and then enters the filter cavity after being filtered by the filter element. Since the filter cavity is connected to the air outlet, the filtered gas can be discharged to the outside of the filter device through the air outlet.

[0009] In a possible technical solution, the air outlet can be connected to an air pump, and the air pump can pump out the gas in the filter chamber. Understandably, after the air pump pumps out the gas in the filter chamber, the air pressure in the filter chamber decreases, so that the waste gas in the waste gas chamber can automatically pass through the filter element and flow into the filter chamber more quickly, thereby causing the waste gas outside the filter device to automatically flow into the waste gas chamber, thereby achieving automatic filtering of the waste gas.

[0010] Furthermore, the air inlet is arranged relative to the top wall of the filter element, and the thickness of the top wall of the filter element is smaller than the thickness of the side wall of the filter element. After the exhaust gas enters the exhaust gas chamber through the air inlet, it flows in the direction toward the filter element. Since the air inlet is arranged relative to the filter element, part of the exhaust gas first flows to the top of the filter element. Since the thickness of the top wall of the filter element is smaller than the thickness of the side wall of the filter element, it is easier for the exhaust gas to flow into the filter chamber through the top wall of the filter element. By arranging the air inlet relative to the top wall of the filter chamber with a smaller thickness, the speed at which the exhaust gas flows into the filter chamber can be accelerated. On the one hand, the efficiency of the filter device in filtering the exhaust gas is improved, and on the other hand, the problem of excessive accumulation of exhaust gas in the exhaust gas chamber, which causes excessive air pressure in the exhaust gas chamber and makes it difficult for external exhaust gas to flow into the filter device, is avoided.

[0011] Furthermore, in order to enable the filter element to be stably installed in the accommodating chamber, the present application provides a fixing member in the filter device. Specifically, the fixing member is connected to the wall surface of the box body, and the fixing member contacts the filter element and can fix the filter element. In one possible technical solution, the fixing member applies pressure to the filter element in the direction toward the bottom wall of the accommodating chamber to fix the filter element. In another possible technical solution, the number of the fixing members is multiple and connected to the side wall of the accommodating chamber, and the multiple fixing members are relatively arranged and jointly squeeze the side wall of the filter element to achieve the fixation of the filter element. The fixing member can also be constructed into a variety of other structures as long as the fixing effect of the filter element can be achieved.

[0012] Furthermore, the fixing member includes a connecting portion, a first limiting plate and a second limiting plate. The connecting portion is connected to the wall of the box body, the first limiting plate is connected to the connecting portion, and the second limiting plate is connected to the connecting portion. By arranging the first limiting plate and the second limiting plate in the fixing member, the filter element can be limited in multiple directions, so that the filter element can be more stably installed in the accommodating cavity.

[0013] According to the above-mentioned filter device of the utility model, it can also have the following distinguishing technical features:

[0014] In some technical solutions, optionally, there is a distance between the top wall of the filter element and the top wall of the box body, and there is a distance between the side wall of the filter element and the side wall of the box body.

[0015] In this technical solution, there is a spacing between the top wall of the filter element and the top wall of the accommodating chamber, and there is a spacing between the side wall of the filter element and the side wall of the accommodating chamber. In this way, there can be an accommodating space in the accommodating chamber for accommodating exhaust gas. After entering the accommodating chamber, the exhaust gas first enters the space defined by the top wall and side wall of the filter element and the top wall and side wall of the accommodating chamber (i.e., at least a part of the exhaust gas chamber), thereby avoiding the problem of exhaust gas having difficulty flowing into the filter device due to the space for accommodating exhaust gas in the filter device being too small.

[0016] In some technical schemes, optionally, the top wall of the filter element, the side walls of the filter element and part of the bottom wall of the box body enclose a filter cavity, and the top wall of the filter element, the side walls of the filter element, the side walls of the box body, the top wall of the box body and part of the bottom wall of the box body enclose an exhaust gas cavity.

[0017] In this technical solution, the positional relationship between the filter element and the housing is defined. Specifically, the top wall of the filter element, the side wall of the filter element and part of the bottom wall of the housing enclose a filter cavity, and the top wall of the filter element, the side wall of the filter element, the side wall of the housing, the top wall of the housing and part of the bottom wall of the housing enclose an exhaust gas cavity. The filter element is a structure with a groove. When the filter element is installed in the accommodating cavity, the inner and outer sides of the filter element respectively enclose two mutually separated spaces (i.e., the filter cavity and the exhaust gas cavity) with the wall surface of the housing. In this way, the exhaust gas can be filtered and the filtered gas can be prevented from being contaminated by the unfiltered exhaust gas.

[0018] In some technical solutions, optionally, the first limiting plate is attached to and presses the top wall of the filter element, and the second limiting plate is located on the peripheral side of the side wall of the filter element.

[0019] In this technical solution, the first limiting plate is located above the filter element and fits against the top wall of the filter element. The first limiting plate can press the top wall of the filter element and apply an inner force to the filter element along the bottom wall direction of the accommodating cavity to fix the filter element.

[0020] Furthermore, the second limiting plate is located on the peripheral side of the side wall of the filter element, so that the filter element can be further limited by the second limiting plate to prevent the filter element from moving. The number of the fixing element can be multiple or one.

[0021] By arranging the first limiting plate and the second limiting plate in the fixing member, the filter element can be limited in multiple directions, so that the filter element can be installed in the accommodating cavity more stably.

[0022] In some technical solutions, optionally, the box body includes: a main body; an upper cover, which is detachably connected to the main body, and the main body and the upper cover together form a accommodating cavity; wherein the air inlet is arranged on the upper cover, and the air outlet is arranged on the bottom wall of the main body.

[0023] In this technical solution, the structure of the box is defined. The box includes a main body and an upper cover, wherein the upper cover is detachably connected to the main body, and when the upper cover is buckled on the main body, the upper cover and the main body enclose a receiving cavity. Understandably, after the filter element has been used for a long time, the filter element needs to be replaced. When the user replaces the filter element, the upper cover can be removed from the main body so as to take out the filter element in the receiving cavity for replacement. By configuring the box to include a main body and an upper cover that can be detachably connected to the main body, it is convenient for the user to open the receiving cavity to replace the filter element, thereby improving the user's convenience. Among them, the air inlet is arranged on the upper cover, and the air outlet is arranged on the bottom wall of the main body.

[0024] In some technical solutions, optionally, the fixing member is connected to the upper cover.

[0025] In this technical solution, the fixing part is further defined. Specifically, the fixing part is connected to the upper cover, and when the user separates the upper cover from the main body, the upper cover can be moved together with the fixing part, and the fixing part is separated from the filter element, thereby releasing the position restriction of the fixing part on the filter element, making it convenient for the user to remove the filter element from the accommodating cavity without having to remove the fixing part separately.

[0026] By connecting the fixing part to the upper cover, the user can separate the fixing part from the filter element when removing the upper cover, and simultaneously release the limit on the filter element, without having to remove the fixing part separately, thereby improving user convenience.

[0027] In some technical solutions, optionally, the filtering device can be connected to an air pump, which is used to extract the gas in the filter chamber. The filtering device also includes: an air inlet pipe, connected to the air inlet, which is used to input exhaust gas into the box; an air outlet pipe, connected to the air outlet, which is used to connect to the air pump.

[0028] In this technical solution, the filtering device is further defined. The filtering device also includes an air inlet pipe and an air outlet pipe, wherein the air inlet pipe is connected to the air inlet, and the air inlet pipe can be connected to other external devices so that the exhaust gas generated by the external devices can be discharged into the box through the air inlet pipe. The air outlet pipe is connected to the air outlet, and the air outlet pipe can be connected to an air pump so that the air pump can extract the filtered gas in the filter cavity through the air outlet pipe.

[0029] By arranging an air inlet pipe connected to the air inlet and an air outlet pipe connected to the air outlet in the filter device, the filter device can be easily connected to other external equipment and an air pump to achieve automatic filtering of exhaust gas.

[0030] In some technical solutions, optionally, the filter device also includes: a seal, which is arranged on the bottom wall of the accommodating cavity, the seal is located on the peripheral side of the filter element and is in contact with the side wall of the filter element, and the seal is used to close the gap between the filter element and the bottom wall of the accommodating cavity.

[0031] In this technical solution, the structure of the filter device is further defined. The filter device also includes a seal, which is used to close the gap between the filter and the bottom wall of the accommodating chamber. It is understandable that when the filter is installed in the accommodating chamber, there is a tiny gap between the filter and the bottom wall of the filter chamber. In order to prevent the exhaust gas in the exhaust gas chamber from flowing into the filter chamber through the gap and polluting the filtered gas, the present application is provided with a seal on the bottom wall of the accommodating chamber. Specifically, the seal surrounds the circumference of the filter and fits tightly with the side wall of the filter. The seal can be used to close the gap between the filter and the bottom wall of the accommodating chamber to block the filter chamber from the exhaust gas chamber, thereby preventing the exhaust gas in the exhaust gas chamber from polluting the filtered gas in the filter chamber. The seal can be made of rubber material.

[0032] The second aspect of the utility model further provides a printing device, comprising the filtering device provided in the first aspect of the utility model.

[0033] The printing device provided in the second aspect of the utility model comprises the filtering device provided in the first aspect of the utility model, and therefore has all the beneficial effects of the filtering device.

[0034] Printing equipment includes digital flexographic plate-making machines.

[0035] Additional aspects and advantages of the present invention will become apparent in the following description or will be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0037] Figure 1 One of the structural schematic diagrams of a filtering device according to an embodiment of the utility model is shown;

[0038] Figure 2 The second structural schematic diagram shows a filtering device according to an embodiment of the utility model.

[0039] in, Figure 1 and Figure 2 The corresponding relationship between the reference numerals and the component names is as follows:

[0040] 100 filtering device, 110 housing, 111 containing chamber, 112 filtering chamber, 113 exhaust chamber, 114 main body, 115 upper cover, 120 filtering element, 130 air inlet, 140 air outlet, 150 fixing element, 151 connecting part, 152 first limiting plate, 153 second limiting plate, 160 air inlet pipe, 170 air outlet pipe, 180 sealing element. DETAILED DESCRIPTION

[0041] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0042] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0043] Refer to the following Figure 1 and Figure 2 The filtering device 100 and the printing apparatus provided according to some embodiments of the present invention are described.

[0044] In one embodiment according to the present application, Figure 1 and Figure 2 As shown, the utility model proposes a filtering device 100, comprising: a box body 110, including a receiving chamber 111; a filter element 120, installed in the receiving chamber 111, the filter element 120 is used to filter the exhaust gas, and the filter element 120 divides the receiving chamber 111 into a filter chamber 112 and an exhaust gas chamber 113; an air inlet 130, which is arranged on the wall surface of the box body 110, and the air inlet 130 is connected to the exhaust gas chamber 113; an air outlet 140, which is arranged on the wall surface of the box body 110, and the air outlet 140 is connected to the filter chamber 112 is connected; wherein, the air inlet 130 is arranged opposite to the top wall of the filter element 120, and the thickness of the top wall of the filter element 120 is less than the thickness of the side wall of the filter element 120; the fixing member 150 is connected to the wall surface of the box body 110, and the fixing member 150 is used to fix the filter element 120; the fixing member 150 includes: a connecting portion 151, connected to the wall surface of the box body 110; a first limiting plate 152, connected to the connecting portion 151; a second limiting plate 153, connected to the connecting portion 151.

[0045] The present application proposes a filter device 100, including a housing 110 and a filter element 120, wherein the housing 110 includes a receiving chamber 111, the receiving chamber 111 is used to install the filter element 120, and the filter element 120 is used to filter the exhaust gas. Specifically, the filter element 120 is detachably installed in the receiving chamber 111. When the filter element 120 is installed in the receiving chamber 111, the filter element 120 separates the receiving chamber 111 into a filter chamber 112 and an exhaust gas chamber 113, and the filter chamber 112 and the exhaust gas chamber 113 are not connected to each other. After entering the filter device 100, the exhaust gas first enters the exhaust gas chamber 113, and then enters the filter chamber 112 after being filtered by the filter element 120. The filter chamber 112 is used to accommodate the gas filtered by the filter element 120. Since the filter chamber 112 and the exhaust gas chamber 113 are separated from each other by the filter element 120, it can be prevented that the filtered exhaust gas is polluted by the unfiltered exhaust gas.

[0046] Furthermore, the filter device 100 includes an air inlet 130 and an air outlet 140, and the air inlet 130 and the air outlet 140 are both arranged on the wall surface of the box body 110. The air inlet 130 is connected to the exhaust gas chamber 113, and the air outlet 140 is connected to the filter chamber 112. The exhaust gas first enters the exhaust gas chamber 113 in the accommodating chamber 111 through the air inlet 130, and then enters the filter chamber 112 after being filtered by the filter element 120. Since the filter chamber 112 is connected to the air outlet 140, the filtered gas can be discharged to the outside of the filter device 100 through the air outlet 140. In a possible embodiment, the air outlet 140 can be connected to an air pump, and the air pump can extract the gas in the filter chamber 112. It can be understood that after the air pump extracts the gas in the filter chamber 112, the air pressure in the filter chamber 112 decreases, so that the exhaust gas in the exhaust gas chamber 113 can automatically pass through the filter element 120 and flow into the filter chamber 112 more quickly, thereby allowing the exhaust gas outside the filter device 100 to automatically flow into the exhaust gas chamber 113, thereby achieving automatic filtration of the exhaust gas.

[0047] Further, the air inlet 130 is arranged opposite to the top wall of the filter element 120, and the thickness of the top wall of the filter element 120 is less than the thickness of the side wall of the filter element 120. After the exhaust gas enters the exhaust gas chamber 113 through the air inlet 130, it flows in the direction toward the filter element 120. Since the air inlet 130 is arranged opposite to the filter element 120, part of the exhaust gas first flows to the top of the filter element 120. Since the thickness of the top wall of the filter element 120 is less than the thickness of the side wall of the filter element 120, it is easier for the exhaust gas to flow into the filter chamber 112 through the top wall of the filter element 120. By arranging the air inlet 130 opposite to the top wall of the filter chamber 112 with a smaller thickness, the speed at which the exhaust gas flows into the filter chamber 112 can be accelerated. On the one hand, the efficiency of the filter device 100 in filtering the exhaust gas is improved, and on the other hand, the problem of excessive accumulation of exhaust gas in the exhaust gas chamber 113, which leads to excessive pressure in the exhaust gas chamber 113 and difficulty for external exhaust gas to flow into the filter device 100, is avoided.

[0048] Furthermore, in order to enable the filter element 120 to be stably installed in the accommodating chamber 111, the present application provides a fixing member 150 in the filter device 100. Specifically, the fixing member 150 is connected to the wall of the housing 110, and the fixing member 150 contacts the filter element 120 and can fix the filter element 120. In a possible embodiment, the fixing member 150 applies pressure to the filter element 120 in the direction toward the bottom wall of the accommodating chamber 111 to fix the filter element 120. In another possible embodiment, the number of fixing members 150 is multiple and connected to the side wall of the accommodating chamber 111, and the multiple fixing members 150 are relatively arranged and jointly squeeze the side wall of the filter element 120 to achieve the fixation of the filter element 120. The fixing member 150 can also be constructed as a variety of other structures, as long as the fixing effect of the filter element 120 can be achieved.

[0049] Furthermore, the fixing member 150 includes a connecting portion 151, a first limiting plate 152, and a second limiting plate 153. The connecting portion 151 is connected to the wall of the box body 110, the first limiting plate 152 is connected to the connecting portion 151, and the second limiting plate 153 is connected to the connecting portion 151. By arranging the first limiting plate 152 and the second limiting plate 153 in the fixing member 150, the filter element 120 can be limited in multiple directions, so that the filter element 120 can be more stably installed in the accommodating cavity 111.

[0050] In some embodiments, optionally, Figure 1 As shown, there is a distance between the top wall of the filter element 120 and the top wall of the box body 110 , and there is a distance between the side wall of the filter element 120 and the side wall of the box body 110 .

[0051] In this embodiment, there is a spacing between the top wall of the filter element 120 and the top wall of the box body 110, and there is a spacing between the side wall of the filter element 120 and the side wall of the box body 110. In this way, the accommodating chamber 111 can have an accommodating space for accommodating exhaust gas. After entering the accommodating chamber 111, the exhaust gas first enters the space defined by the top wall and side wall of the filter element 120 and the top wall and side wall of the accommodating chamber 111 (that is, at least a part of the exhaust gas chamber 113), thereby avoiding the problem that the exhaust gas has difficulty flowing into the filter device 100 due to the small space for accommodating exhaust gas in the filter device 100.

[0052] In some embodiments, optionally, Figure 1 As shown, the top wall of the filter element 120, the side walls of the filter element 120 and a portion of the bottom wall of the box body 110 together form a filter chamber 112, and the top wall of the filter element 120, the side walls of the filter element 120, the side walls of the box body 110, the top wall of the box body 110 and a portion of the bottom wall of the box body 110 together form an exhaust gas chamber 113.

[0053] In this embodiment, the positional relationship between the filter element 120 and the housing 110 is defined. Specifically, the top wall of the filter element 120, the side wall of the filter element 120 and part of the bottom wall of the housing 110 enclose a filter cavity 112, and the top wall of the filter element 120, the side wall of the filter element 120, the side wall of the housing 110, the top wall of the housing 110 and part of the bottom wall of the housing 110 enclose an exhaust gas cavity 113. The filter element 120 is a structure with a groove. When the filter element 120 is installed in the accommodating cavity 111, the inner side and the outer side of the filter element 120 respectively enclose two mutually separated spaces (i.e., the filter cavity 112 and the exhaust gas cavity 113) with the wall surface of the housing 110. In this way, the exhaust gas can be filtered and the filtered gas can be prevented from being contaminated by the unfiltered exhaust gas.

[0054] In some embodiments, optionally, Figure 1 As shown, the first limiting plate 152 is attached to and presses the top wall of the filter element 120 ; the second limiting plate 153 is located on the peripheral side of the side wall of the filter element 120 .

[0055] In this embodiment, the first limiting plate 152 is located above the filter element 120 and fits against the top wall of the filter element 120. The first limiting plate 152 can press the top wall of the filter element 120 and apply an inner force to the filter element 120 along the direction toward the bottom wall of the accommodating cavity 111 to fix the filter element 120.

[0056] Furthermore, the second limiting plate 153 is located on the peripheral side of the side wall of the filter element 120, so that the filter element 120 can be further limited by the second limiting plate 153 to prevent the filter element 120 from moving. The number of the fixing element 150 can be multiple or one.

[0057] By providing the first limiting plate 152 and the second limiting plate 153 in the fixing member 150 , the filter element 120 can be limited in multiple directions, so that the filter element 120 can be more stably installed in the accommodating cavity 111 .

[0058] In some embodiments, optionally, Figure 1 and Figure 2 As shown, the box body 110 includes: a main body 114; an upper cover 115, which is detachably connected to the main body 114, and the main body 114 and the upper cover 115 together form a accommodating cavity 111; wherein, the air inlet 130 is arranged on the upper cover 115, and the air outlet 140 is arranged on the bottom wall of the main body 114.

[0059] In this embodiment, the structure of the box 110 is defined. The box 110 includes a main body 114 and an upper cover 115, wherein the upper cover 115 is detachably connected to the main body 114, and when the upper cover 115 is buckled on the main body 114, the upper cover 115 and the main body 114 enclose a receiving chamber 111. It is understandable that after the filter element 120 is used for a long time, the filter element 120 needs to be replaced. When the user replaces the filter element 120, the upper cover 115 can be removed from the main body 114 to facilitate the removal of the filter element 120 in the receiving chamber 111 for replacement. By setting the box 110 to include a main body 114 and an upper cover 115 that can be detachably connected to the main body 114, it is convenient for the user to open the receiving chamber 111 to replace the filter element 120, thereby improving the user's convenience. Among them, the air inlet 130 is provided on the upper cover 115, and the air outlet 140 is provided on the bottom wall of the main body 114.

[0060] In some embodiments, optionally, Figure 1 As shown, the fixing member 150 is connected to the upper cover 115 .

[0061] In this embodiment, the fixing member 150 is further defined. Specifically, the fixing member 150 is connected to the upper cover 115, and when the user separates the upper cover 115 from the main body 114, the upper cover 115 can move together with the fixing member 150, and the fixing member 150 is separated from the filter element 120, thereby releasing the position restriction of the fixing member 150 on the filter element 120, making it convenient for the user to remove the filter element 120 from the accommodating cavity 111 without having to remove the fixing member 150 separately.

[0062] By connecting the fixing member 150 to the upper cover 115, the user can separate the fixing member 150 from the filter element 120 when removing the upper cover 115, and simultaneously release the limit on the filter element 120 without having to remove the fixing member 150 separately, thereby improving user convenience.

[0063] In some embodiments, optionally, Figure 1 and Figure 2 As shown, the filter device 100 can be connected to an air pump, which is used to extract the gas in the filter chamber 112. The filter device 100 also includes: an air inlet pipe 160, which is connected to the air inlet 130, and the air inlet pipe 160 is used to input exhaust gas into the box body 110; an air outlet pipe 170, which is connected to the air outlet 140, and the air outlet pipe 170 is used to be connected to the air pump.

[0064] In this embodiment, the filter device 100 is further defined. The filter device 100 further includes an air inlet pipe 160 and an air outlet pipe 170, wherein the air inlet pipe 160 is connected to the air inlet port 130, and the air inlet pipe 160 can be connected to other external devices so that the exhaust gas generated by the external devices can be discharged into the box body 110 through the air inlet pipe 160. The air outlet pipe 170 is connected to the air outlet port 140, and the air outlet pipe 170 can be connected to an air pump so that the air pump can extract the filtered gas in the filter cavity 112 through the air outlet pipe 170.

[0065] By providing an air inlet pipe 160 connected to the air inlet 130 and an air outlet pipe 170 connected to the air outlet 140 in the filter device 100, the filter device 100 can be conveniently connected to other external equipment and an air pump to achieve automatic filtering of exhaust gas.

[0066] In some embodiments, optionally, Figure 1 As shown, the filter device 100 also includes: a seal 180, which is arranged on the bottom wall of the accommodating chamber 111. The seal 180 is located on the peripheral side of the filter element 120 and is in contact with the side wall of the filter element 120. The seal 180 is used to close the gap between the filter element 120 and the bottom wall of the accommodating chamber 111.

[0067] In this embodiment, the structure of the filter device 100 is further defined. The filter device 100 also includes a seal 180, which is used to close the gap between the filter element 120 and the bottom wall of the accommodating chamber 111. It can be understood that when the filter element 120 is installed in the accommodating chamber 111, there is a small gap between the filter element 120 and the bottom wall of the filter chamber 112. In order to prevent the exhaust gas in the exhaust chamber 113 from flowing into the filter chamber 112 through the gap and polluting the filtered gas, the present application is provided with a seal 180 on the bottom wall of the accommodating chamber 111. Specifically, the seal 180 surrounds the peripheral side of the filter element 120 and fits tightly with the side wall of the filter element 120. The seal 180 can close the gap between the filter element 120 and the bottom wall of the accommodating chamber 111 to block the filter chamber 112 from the exhaust chamber 113, so as to prevent the exhaust gas in the exhaust chamber 113 from polluting the filtered gas in the filter chamber 112. The sealing member 180 may be made of rubber material.

[0068] The second aspect of the present invention further provides a printing device, comprising the filtering device 100 provided in the first aspect of the present invention.

[0069] The printing device provided in the second aspect of the utility model comprises the filtering device 100 provided in the first aspect of the utility model, and therefore has all the beneficial effects of the filtering device 100.

[0070] Printing equipment includes digital flexographic plate-making machines.

[0071] In a possible embodiment, Figure 1 and Figure 2 As shown, the air outlet 140 of the filter device 100 can be connected to an air pump, and the air pump is used to continuously extract gas from the inside of the filter element (i.e., the filter element 120). After the gas inside the filter element (i.e., the filter chamber 112) is extracted, the exhaust gas outside the filter element will enter the filter element. In the process of the exhaust gas entering the filter element, the exhaust gas is filtered. During the filtering process, the pipe connected to the air inlet 130 will continuously inhale the exhaust gas. After the exhaust gas is sucked into the filter box (i.e., the box body 110), it is filtered through the filter element until it meets the emission standards, and then discharged from the air outlet 140. It should be noted that the entry of exhaust gas may cause the filtering effect of the filter element to decrease, so the filter element needs to be replaced regularly to ensure the filtering efficiency of the filter element.

[0072] The filtering device 100 proposed in this application has the following advantages:

[0073] High-efficiency filtration: Through continuous air extraction, the gas inside the filter element can be continuously extracted, so that the gas entering the filter element can be effectively filtered to meet the emission standards;

[0074] Automatic operation: The entire filtering process can be realized by the air pump connected to the filtering device 100, without the need for manual intervention, thus reducing labor costs;

[0075] Simple maintenance: only need to replace the filter element regularly, low maintenance cost;

[0076] Environmentally friendly: By filtering exhaust gas, environmental pollution can be reduced and the environment can be protected.

[0077] In the present invention, the term "plurality" means two or more than two, unless otherwise clearly defined. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0078] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0079] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A filtering device, characterized in that: include: The box body includes a containing cavity; A filter element is installed in the accommodating chamber, the filter element is used to filter the exhaust gas, and the filter element divides the accommodating chamber into a filter chamber and an exhaust gas chamber; An air inlet is provided on the wall of the box body, and the air inlet is communicated with the exhaust gas chamber; An air outlet is provided on the wall surface of the box body, and the air outlet is communicated with the filter cavity; Wherein, the air inlet is arranged opposite to the top wall of the filter element, and the thickness of the top wall of the filter element is smaller than the thickness of the side wall of the filter element; A fixing member connected to the wall of the box body, and used to fix the filter element; The fixing member comprises: A connecting portion connected to a wall surface of the box; A first limiting plate connected to the connecting portion; The second limiting plate is connected to the connecting portion.

2. The filtering device according to claim 1, characterized in that: There is a distance between the top wall of the filter element and the top wall of the box body, and there is a distance between the side wall of the filter element and the side wall of the box body.

3. The filtering device according to claim 1, characterized in that: The top wall of the filter element, the side walls of the filter element and part of the bottom wall of the box body together form the filter cavity, and the top wall of the filter element, the side walls of the filter element, the side walls of the box body, the top wall of the box body and part of the bottom wall of the box body together form the exhaust gas cavity.

4. The filtering device according to claim 3, characterized in that: The first limiting plate is attached to and presses the top wall of the filter element, and the second limiting plate is located on the peripheral side of the side wall of the filter element.

5. The filtering device according to claim 3, characterized in that: The box body comprises: main body; An upper cover is detachably connected to the main body, and the main body and the upper cover together form the accommodating cavity; Wherein, the air inlet is arranged on the upper cover, and the air outlet is arranged on the bottom wall of the main body.

6. The filtering device according to claim 5, characterized in that: The fixing member is connected to the upper cover.

7. The filtering device according to any one of claims 1 to 6, characterized in that: The filtering device can be connected to an air pump, and the air pump is used to extract the gas in the filtering cavity. The filtering device also includes: An air intake pipe connected to the air intake port, the air intake pipe being used to input the exhaust gas into the box; An air outlet pipe is connected to the air outlet, and the air outlet pipe is used to be connected to the air pump.

8. The filtering device according to any one of claims 1 to 6, characterized in that: Also includes: A sealing member is arranged on the bottom wall of the accommodating cavity. The sealing member is located on the peripheral side of the filter element and is in contact with the side wall of the filter element. The sealing member is used to close the gap between the filter element and the bottom wall of the accommodating cavity.

9. A printing device, characterized in that: include: The filter device according to any one of claims 1 to 8.

10. The printing device according to claim 9, characterized in that The printing equipment includes a digital flexographic plate-making machine.

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