A mixer feed port seal splash guard

By designing multiple sets of arc-shaped guide plates and cover plates at the mixer inlet, the problems of material splashing and dust diffusion at the mixer inlet are solved, achieving a safer and cleaner material feeding process.

CN224541619UActive Publication Date: 2026-07-24TONGLU HONGYU BUILDING MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TONGLU HONGYU BUILDING MATERIALS CO LTD
Filing Date
2025-08-25
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The feed inlet of existing mixers is prone to material splashing and dust diffusion, which pollutes the working environment.

Method used

A sealing and splash-proof device for the feed inlet of a mixer is designed. It adopts a structure of multiple sets of arc-shaped guide plates and cover plates, which can rotate flexibly according to the material distribution. Combined with the sealing design of the feed hopper and cover plate, it reduces material splashing and dust diffusion.

Benefits of technology

It effectively reduces the probability of material splashing and dust diffusion, improves operational safety and environmental cleanliness, and enhances the stability and convenience of material delivery.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a mixer feed inlet sealing splashproof device, including the mixer main part and the feed inlet on the mixing chamber of mixer main part's installation have feed assembly, feed assembly include the feed hopper that has set up on the feed inlet and the rotation setting of multiple groups of arc setting's guide plate on the feed inlet and the rotation setting of the cover on the feed hopper top opening, the corresponding both ends face of adjacent guide plate is inlaid, and the locking piece is connected between cover and feed hopper. The device can according to the distribution of material through the rotation process of multiple guide plates on the feed inlet, so that the feed inlet carries out the flexible change of corresponding opening size, and the structure setting of feed hopper in combination feed assembly and the cover of its cover set, effectively reduce the probability that the material in the mixing chamber produces splashing outward through the feed assembly, simultaneously effectively reduce the concentration that the dust produced in the mixing chamber disperses outward through the feed assembly, further reduce the pollution degree to the working environment.
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Description

Technical Field

[0001] This utility model relates to the field of mixing machinery technology, specifically to a sealing and splash-proof device for the feed inlet of a mixer. Background Technology

[0002] Existing mixers often use simple cover plates or open designs for their feed inlets. During operation, when materials are fed into the mixing chamber through the feed inlet, the impact force of the materials and the rotation of the mixer often cause the materials in the mixing chamber to splash out of the feed inlet. At the same time, the feed inlets of existing mixers use simple flap structures. When materials are fed in, they are relatively concentrated, and the flap flipping process relies heavily on manual adjustment. Furthermore, the dust generated by the materials falling into the mixing chamber is relatively large. If the flap does not flip in time, it will further increase the probability of materials splashing out of the feed inlet and increase the concentration of dust generated inside the mixing chamber that drifts out through the feed inlet, thus increasing the degree of pollution to the working environment. Utility Model Content

[0003] The purpose of this utility model is to provide a sealing and splash-proof device for the feed inlet of a mixer. This device can rotate according to the distribution of the material by means of multiple sets of guide plates on the feed inlet in corresponding positions, quantities and directions, so that the opening size of the feed inlet can be flexibly changed. Combined with the structural design of the feed hopper in the feed assembly and the cover plate, it effectively reduces the probability of material in the mixing chamber splashing outward through the feed assembly, and at the same time effectively reduces the concentration of dust generated inside the mixing chamber that drifts outward through the feed assembly, further reducing the degree of pollution to the working environment.

[0004] The technical solution adopted by this utility model to solve the above problems is:

[0005] A mixer inlet sealing and splash-proof device includes a mixer body and a feeding assembly installed on the inlet of the mixing chamber located in the mixer body. The feeding assembly includes a feeding hopper provided on the feeding inlet, multiple sets of arc-shaped guide plates rotatably provided on the feeding inlet, and a cover plate rotatably provided on the top opening of the feeding hopper. The corresponding end faces of adjacent guide plates are in contact with each other, and a locking element is connected between the cover plate and the feeding hopper.

[0006] Preferably, the guide plate has counterweight rods embedded at both ends and adhesive strips are pasted along the end faces of the counterweight rods.

[0007] Preferably, the multiple sets of arc-shaped guide plates are detachably installed on the feed inlet by multiple sets of spaced connecting rods passing through the feed inlet and a retaining spring at one end.

[0008] Preferably, the feeding assembly further includes a second guide plate located between the cover plate and the guide plate, rotatably arranged in a V-shape inside the feeding hopper with multiple sets of spaced-apart second guide plates. The second guide plate is detachably mounted on the feeding hopper via a second connecting rod with multiple sets of spaced-apart second connecting rods passing through it and a second snap ring clamped at one end. The second connecting rods are spaced at the same distance from the connecting rods and their positions are correspondingly set.

[0009] Preferably, the feeding assembly further includes a connecting frame rotatably connected to the feeding hopper and the feeding port, and a second locking member and a third locking member connected to the connecting frame and the feeding port are respectively installed on the feeding hopper and the connecting frame. A plurality of sets of spaced guide rods are rotatably arranged between the guide plate and the second guide plate within the connecting frame. The guide rods are detachably installed on the connecting frame through a plurality of spaced third connecting rods passing through the connecting frame and a third snap ring clamped at one end.

[0010] Preferably, multiple sets of anti-collision blocks are installed on the outer walls of the hinged positions between the cover plate, the feed hopper, the connecting frame, and the feed inlet, and sealing gaskets are affixed to the wall surfaces that are pressed together.

[0011] Preferably, the cover plate is provided with an observation window.

[0012] Compared with the prior art, this utility model has the following advantages and effects:

[0013] This utility model relates to a sealing and splash-proof device for the feed inlet of a mixer. This device is integrated into the structure of the mixer body and incorporated into the feed inlet as a structural addition to the feeding assembly. The feed hopper within the assembly further enhances the convenience of material feeding. Simultaneously, the rotating cover plate ensures the sealing of the mixing chamber. Furthermore, during material feeding, the multiple sets of arc-shaped guide plates rotating on the feed inlet, arranged according to the material distribution, allow for appropriate rotation based on the corresponding position, quantity, and direction. This process allows the feed inlet to flexibly change its opening size through the rotation of multiple sets of guide plates. Guide plates without material falling can remain stationary, providing partial obstruction of the feed inlet. Compared to traditional open-structure feed inlets, this design, combined with the rotation of the guide plates and the structure of the feed hopper, effectively reduces material splashing from the mixing chamber to the outside of the feed hopper. Furthermore, it reduces dust generated by the material fed into the mixing chamber from being dispersed into the feed hopper and even to the outside via the guide plates. The concentration of the diffused material is reduced, thereby further decreasing the pollution level to the working environment. Combined with the weight setting of the guide plate and the cover plate, the guide plate, when stationary, can seal the inlet, further reducing the splashing of material from the mixing chamber outwards along the feed hopper. Furthermore, the manual back-and-forth movement of the material during feeding further improves the dispersion of the material within the feed hopper and at the inlet. The rotation of the guide plate ensures the stability of the material entering the mixing chamber. The bag used to hold the material can also... Multiple sets of guide plates are pre-placed at the feed inlet of the hopper. When stationary, these guide plates can seal the feed inlet, isolating it from the mixing blades in the mixing chamber to ensure operational safety. This, combined with the process of opening the bag and pouring it out along the guide plates, with the material being fed into the mixing chamber via the rotation of the guide plates, further reduces the dust concentration generated in the feed hopper during material feeding. Combined with the timely covering of the cover after material feeding, it reduces further pollution to the external environment, improving operational flexibility and applicability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a mixer inlet sealing and splash-proof device according to an embodiment of the present invention.

[0015] Figure 2-5 This is an enlarged view of the feeding assembly located at the feed inlet of the mixing chamber in an embodiment of this utility model.

[0016] Figure 6This is an enlarged view of the structure of the guide plate, the second guide plate, and the guide rod in the embodiment of this utility model, respectively disassembled at the feed inlet, the feed hopper, and the connecting frame.

[0017] Figure Numbers: Mixer Body 100, Mixing Chamber 101, Feed Inlet 102, Mounting Hole 1021, Feeding Assembly 1, Guide Plate 11, Through Hole 110, Counterweight Rod 111, Rubber Strip 112, Connecting Rod 113, Snap Ring 1131, Feed Hopper 12, Second Mounting Hole 120, Second Locking Component 121, Cover Plate 13, Locking Component 130, Observation Window 131, Second Guide Plate 14, Second Through Hole 140, Second Connecting Rod 141, Second Snap Ring 1411, Circular Handle 1412, Connecting Frame 15, Third Mounting Hole 150, Third Locking Component 151, Guide Rod 16, Third Through Hole 160, Third Connecting Rod 161, Third Snap Ring 1611, Anti-collision Block 17. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0019] See Figure 1-6 This embodiment relates to a sealing and splash-proof device for a mixer feed inlet 102, including a mixer body 100 and a feeding assembly 1 installed on the feed inlet 102 of the mixing chamber 101 of the mixer body 100. The feeding assembly 1 includes a feeding hopper 12 provided on the feed inlet 102, multiple sets of arc-shaped guide plates 11 rotatably provided on the feed inlet 102, and a cover plate 13 rotatably provided on the top opening of the feeding hopper 12. The corresponding end faces of adjacent guide plates 11 are in contact with each other, and a locking member 130 is connected between the cover plate 13 and the feeding hopper 12.

[0020] Specifically in this embodiment, such as Figure 1 The overall structure of the sealing and splash-proof device for the feed inlet 102 of this mixer shown is designed using a common structure found in commercially available mixers for mixing powdery materials. Figure 2-3 As shown, the feed inlet 102 is open at the top of the mixing chamber 101. The feed hopper 12 in the feed assembly 1 is adapted to the size of the feed inlet 102 and is installed and fixed on the feed inlet 102, while combining with Figure 3 and Figure 6 The structure of the guide plate 11 and its arrangement on the feed inlet 102 are shown. The shaft for rotating the guide plate 11 can be inserted at the apex of the arc in the middle of the plate, so that the guide plate 11 can be in a stationary position. Figure 3In the example state, and with the structural setting and arrangement spacing of the guide plates 11 not affecting the normal rotation of the guide plates 11, the corresponding end faces of adjacent guide plates 11 are appropriately fitted together. In actual use, the cover plate 13 can be rotated to open the feed hopper 12, allowing material to be fed into the mixing chamber 101 through the feed hopper 12 along the lower feed inlet 102. The material fed into the feed hopper 12 can fall onto the multiple sets of guide plates 11 at the feed inlet 102 beforehand. At the same time, combined with the weight of the material, the guide plates 11 rotate and move along their arc surfaces and the openings of adjacent guide plates 11 during rotation. The material falls into the mixing chamber 101 through an opening of appropriate size. Multiple sets of arc-shaped guide plates 11, rotatably mounted on the feed inlet 102, can rotate in corresponding positions and directions according to the specific distribution of material during feeding. Guide plates 11 without material falling can remain stationary, partially blocking the feed inlet 102. Simultaneously, during feeding, material enters the mixing chamber 101 along with the rotation of the multiple guide plates 11. After feeding is complete, the guide plates 11 return to a stationary state, sealing the feed inlet 102. At this time, rotating the cover plate 13 closes the feed hopper 12, allowing material to flow through... Figure 1For example, a locking element 130 with a locking structure is set to lock the cover plate 13 and the feed hopper 12 to ensure the sealing. The material put into the mixing chamber 101 is subsequently mixed and discharged through the discharge hopper at the bottom of the mixing chamber 101 after the mixing is completed.This type of sealing and splash-proof device for the mixer inlet 102 can be integrated into the structure of the mixer body 100 by adding the feeding assembly 1 to the inlet 102. The structure of the feeding hopper 12 in the feeding assembly 1 further improves the convenience of material feeding. Simultaneously, the cover plate 13 rotatably mounted on it ensures the sealing of the mixing chamber 101. Furthermore, during material feeding, the structure and arrangement of the multiple sets of arc-shaped guide plates 11 rotatably mounted on the inlet 102 allow for rotation according to the material distribution, adjusting the position, quantity, and direction. This allows the inlet 102 to pass through the multiple sets of guide plates 11. The rotation process allows for flexible changes in the opening size, while the guide plate 11, which prevents material from falling, can remain stationary, partially blocking the feed inlet 102. Compared to the traditional open-structure feed inlet 102, this rotation of the guide plate 11, combined with the opening design of the guide plate 11 and the structure of the feed hopper 12, effectively reduces the splashing of material from the mixing chamber 101 to the outside of the feed hopper 12 via the guide plate 11. Furthermore, it reduces the concentration of dust generated by the material fed into the mixing chamber 101 that diffuses into the feed hopper 12 and even to the outside via the guide plate 11, thereby further... To further reduce pollution to the working environment, the guide plate 11, with its weight and the cover plate 13, can seal the feed inlet 102 when stationary, further reducing the splashing of material from the mixing chamber 101 outwards from the feed inlet 102 along the feed hopper 12. Additionally, the manual back-and-forth movement of the material during feeding further improves the dispersion of the material within the feed hopper 12 and at the feed inlet 102. The rotation of the guide plate 11 ensures the stability of the material entering the mixing chamber 101. Furthermore, the material can be pre-placed in the material container during feeding. The multiple sets of guide plates 11 on the feed inlet 102 in the feed hopper 12 can seal the feed inlet 102 in a static state to isolate it from the agitator in the mixing chamber 101 to ensure operational safety. In combination with the operation of opening the bag and pouring it out along the multiple sets of guide plates 11, and then feeding the material into the mixing chamber 101 by rotating the guide plates 11, the dust concentration generated in the feed hopper 12 during the feeding process can be further reduced. Combined with the timely covering of the cover plate 13 after the material is fed, the degree of further pollution to the external environment is reduced, and the operational flexibility and applicability are improved.

[0021] The guide plate 11 has counterweight rods 111 embedded at both ends, and adhesive strips 112 are attached to the end faces of the counterweight rods 111. As can be seen from section 6, the addition of the counterweight rods 111 to the guide plate 11 and the setting of their positions ensure that the material can be stably discharged from the mixing chamber 101 through the guide plate 11, while further improving the rotational stability and corresponding guiding effect of the guide plate 11. This reduces the phenomenon of bridging or even accumulation of material on the guide plate 11, which can prevent the guide plate 11 from rotating. It also improves the stability of the guide plate 11 in its stationary state and the stability of the feed inlet 102. To ensure the stability of the sealed baffle, and to appropriately reduce the splashing of material in the mixing chamber 101 during the mixing process, which would cause the guide plate 11 to swing left and right, the probability of material in the mixing chamber 101 splashing into the feed hopper 12 through the guide plate 11 during the mixing process is further reduced. In addition, the addition of rubber strips 112 at both ends of the guide plate 11 can further improve the adhesion between multiple sets of guide plates 11 and the sealing of the feed inlet 102 and the mixing chamber 101 without affecting the normal rotation of the guide plate 11, in combination with the gravity of the counterweight rod 111.

[0022] The multiple sets of arc-shaped guide plates 11 are detachably mounted on the feed inlet 102 through multiple sets of spaced connecting rods 113 and snap rings 1131 at one end. The connecting rods 113 can pass through the mounting holes 1021 at both ends of the feed inlet 102 and the through hole 110 in the middle of the guide plate 11, and are combined with the snap rings 1131 at one end to realize the process of assembling and disassembling the guide plates 11 on the feed inlet 102, which facilitates the installation, disassembly, cleaning and replacement of the guide plates 11.

[0023] The feeding assembly 1 further includes a plurality of second guide plates 14 located between the cover plate 13 and the guide plate 11, rotatably arranged inside the feeding hopper 12 with spaced intervals and arranged in a V-shape. The second guide plates 14 are detachably mounted on the feeding hopper 12 via a plurality of second connecting rods 141 arranged with spaced intervals passing through them and a second snap ring 1411 clamped at one end. The second connecting rods 141 and the connecting rods 113 are spaced at the same intervals and their positions are correspondingly set. For details, please refer to [link to documentation]. Figure 5 The structure of the second guide plate 14 and its arrangement within the feed hopper 12 corresponding to the guide plate 11 are shown in the figure. Figure 6The detachable connection method shown is the same as that of the detachable guide plate 11. The second connecting rod 141 can be detached from the feed hopper 12 through the second mounting hole 120 opened at the corresponding position on the feed hopper 12 and the second through hole 140 opened at the V-shaped tip connection on the second guide plate 14, combined with the second snap ring 1411 locked at one end. This realizes the detachable installation process of the second guide plate 14 on the feed hopper 12. Thus, the V-shaped second guide plate 14 and the second connecting rod 141 are set in the position of the second through hole 140, so that when in the position of the second guide plate 14 and the second connecting rod 141, the second guide plate 14 is detached from the feed hopper 12. Figure 5 The material can be in an inverted V shape in the static state shown. Combined with the structural design of the second guide plate 14 and the arrangement of the second connecting rod 141 and the connecting rod 113 with the same spacing and corresponding positions, the dispersion of the material in the feed hopper 12 can be further improved, and the guiding effect of the feed assembly 1 can be improved.

[0024] The feeding assembly 1 further includes a connecting frame 15 rotatably connected to the feeding hopper 12 and the feeding port 102, respectively. A second locking member 121 and a third locking member 151, connected to the connecting frame 15 and the feeding port 102, are respectively installed on the feeding hopper 12 and the connecting frame 15. Multiple sets of spaced-apart guide rods 16 are rotatably arranged within the connecting frame 15 between the guide plate 11 and the second guide plate 14. The guide rods 16 are detachably mounted on the connecting frame 15 via multiple sets of spaced-apart third connecting rods 161 passing through the connecting frame 15 and a third retaining spring 1611 clamped at one end. See details [link to documentation]. Figure 3 , Figure 4 as well as Figure 6As shown, the structural addition of the connecting frame 15 and its connection method to the feed inlet 102 and the feed hopper 12 respectively allow both the feed hopper 12 and the connecting frame 15 to rotate and open above the feed inlet 102. Combined with the unified structure of the second locking member 121, the third locking member 151, and the locking member 130, this facilitates opening while simultaneously locking and sealing the feed hopper 12, the connecting frame 15, and the feed inlet 102 in a closed state. The cover plate 13 on top of the feed hopper 12 ensures the sealing of the mixing chamber 101. Furthermore, the guide rod 16 adopts the same detachable connection method as the guide plate 11 and the second guide plate 14. The third connecting rod 161 can pass through the third connecting rods opened at both ends of the connecting frame 15. The mounting hole 150 and the third through hole 160 on the guide rod 16, combined with the third retaining spring 1611 locked at one end, enable the detachable connection of the guide rod 16 to the connecting frame 15. This facilitates the rotation of the feed hopper 12, its upper cover 13, and the connecting frame 15 above the feed inlet 102, and also allows for easy disassembly, cleaning, and replacement of the guide plate 11, the second connecting plate, and the guide rod 16. When material is fed into the feed hopper 12, it can be guided and scattered in the mixing chamber 101 through the rotation of the second guide plate 14, the guide rod 16, and the guide plate 11 on the second connecting rod 141, the third connecting rod 161, and the connecting rod 113, respectively, further enhancing the functionality of the feeding assembly 1. The material feeding process improves the guiding and dispersing effects. Compared to the open structure of the feed inlet 102 where materials fall directly into the mixing chamber 101, this method provides a buffering effect. During feeding, the bag containing the material can be placed on multiple sets of second guide plates 14 within the feed hopper 12. A cutter can be used to open and cut the bag to allow the material to flow out. After cutting, the cover plate 13 can be closed. A circular handle 1412 can be added to one end of the second connecting rod 141 to facilitate rotation. An interference fit can be used between the second guide plate 14 on the second connecting rod 141 and the second connecting rod 141. By connecting the two materials in a suitable manner, the second connecting rod 141 and the second guide plate 14 on it can be easily driven to rotate synchronously in the corresponding direction through the ring handle 1412. This can move the bag placed on the second guide plate 14 to improve the outflow of material inside the bag. Finally, after most of the material inside the bag has been guided by the feeding component 1, the cover plate 13 is opened to adjust the bag until all the material inside is completely fed in. Combined with the above operation method, the concentration of dust that is generated and dispersed outward can be further reduced. Moreover, the two ends of the V-shaped second guide plate 14 can also be set with a pointed structure or equipped with blades according to the usage requirements, which can facilitate the cutting and unpacking of the bag containing the material, meeting different usage environments and needs.

[0025] Multiple sets of anti-collision blocks 17 are installed on the outer walls of the hinged joints between the cover plate 13, the feed hopper 12, the connecting frame 15, and the feed inlet 102, and sealing gaskets are affixed to the wall surfaces where they are pressed together. Specifically, from Figure 2 As can be seen, the addition of the anti-collision block 17 can provide a certain buffering effect when the cover plate 13, the feed hopper 12 and the connecting frame 15 are rotated and opened above the feed inlet 102. Combined with the installation position setting of the connecting rod 113, the second connecting rod 141 and the third connecting rod 161, it effectively reduces unnecessary structural damage when opening. In addition, sealing gaskets can be installed on the wall surface where the bottom of the cover plate 13 and the upper and lower ends of the feed hopper 12 and the upper and lower ends of the connecting frame 15 and the top of the feed inlet 102 are pressed together, according to the usage requirements. Thus, combined with the locking process of the locking member 130, the second locking member 121 and the third locking member 151, the sealing effect of the feeding assembly 1 on the feed inlet 102 on the inside of the mixing chamber 101 can be further improved, and the internal material is less likely to leak and splash.

[0026] The cover plate 13 is provided with an observation window 131, from which... Figure 1 or Figure 2 As can be seen, the addition of the observation window 131 on the cover plate 13 facilitates the observation and adjustment of the material guiding situation inside the feed hopper 12, improving operational flexibility and speed.

[0027] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A sealing and splash-proof device for the feed inlet of a mixer, characterized in that: The device includes a mixer body and a feeding assembly installed on the feed inlet of the mixing chamber located in the mixer body. The feeding assembly includes a feed hopper provided on the feed inlet, multiple sets of arc-shaped guide plates rotatably provided on the feed inlet, and a cover plate rotatably provided on the top opening of the feed hopper. The corresponding end faces of adjacent guide plates are in contact with each other, and a locking device is connected between the cover plate and the feed hopper.

2. The mixer inlet sealing and splash-proof device according to claim 1, characterized in that: The guide plate has counterweight rods embedded at both ends, and adhesive strips are attached to the end faces of the counterweight rods.

3. The mixer inlet sealing and splash-proof device according to claim 1, characterized in that: The multiple sets of arc-shaped guide plates are detachably installed on the feed inlet by multiple sets of spaced connecting rods passing through the feed inlet and snap rings at one end of each rod.

4. The mixer inlet sealing and splash-proof device according to claim 3, characterized in that: The feeding assembly also includes a second guide plate located between the cover plate and the guide plate, which is rotatably arranged in a V-shape inside the feeding hopper. The second guide plate is detachably installed on the feeding hopper via a second connecting rod with multiple intervals passing through it and a second snap ring at one end. The second connecting rods are spaced at the same distance from the connecting rods and their positions are correspondingly set.

5. The mixer inlet sealing and splash-proof device according to claim 4, characterized in that: The feeding assembly further includes a connecting frame rotatably connected to the feeding hopper and the feeding port, and a second locking member and a third locking member connected to the connecting frame and the feeding port are respectively installed on the feeding hopper and the connecting frame. A plurality of guide rods are rotatably arranged between the guide plate and the second guide plate within the connecting frame. The guide rods are detachably installed on the connecting frame through a plurality of third connecting rods arranged at intervals passing through the connecting frame and a third snap ring clamped at one end.

6. The mixer inlet sealing and splash-proof device according to claim 5, characterized in that: Multiple sets of anti-collision blocks are installed on the outer walls of the hinged joints between the cover plate, the feed hopper, the connecting frame, and the feed inlet, and sealing gaskets are affixed to the wall surfaces that are pressed together.

7. The mixer inlet sealing and splash-proof device according to claim 1, characterized in that: An observation window is provided on the cover plate.