Convenient cleaning type air-lock valve

Abstract

The utility model provides a convenient cleaning type air-lock valve which comprises a machine shell, an impeller and a driving shaft, the machine shell comprises a shell body, a front end cover and a rear end cover, and the front end cover and the rear end cover are arranged at the two ends of the shell body respectively. The impeller is arranged in the shell; the driving shaft comprises a fixed shaft and a movable shaft, the fixed shaft is connected and rotationally matched with the front end cover, and a first clamping structure is arranged at one end, facing the shell, of the fixed shaft; the movable shaft penetrates through the impeller, is connected with the impeller and rotates synchronously with the impeller, and the movable shaft is in running fit with the rear end cover; the end, facing the front end cover, of the movable shaft is provided with a second clamping structure, and the second clamping structure is suitable for being clamped with or separated from the first clamping structure through axial displacement. According to the air-lock valve convenient to clean, when the air-lock valve needs to be cleaned, only one part of the rear end cover needs to be detached, the impeller and the movable shaft can be directly pulled out, the impeller and the interior of the shell can be cleaned, and operation is easy, convenient and fast.

Description

Technical Field

[0001] The utility model belongs to the technical field of air locks, and in particular relates to a convenient-to-clean air lock. Background Art

[0002] An air lock, also known as an air lock, star discharger, or star ash valve, is a discharger installed at the discharge position under negative pressure conditions. Material from the upper silo falls by gravity into the cavity between the impeller blades of the air lock and is discharged from below as the impeller rotates. While ensuring stable and continuous material conveyance, air locks also provide a seal and air lock, making them commonly used in environmental dust removal systems. Air locks are primarily used to convey dust and small particles, and have a wide range of applications in environmental protection, metallurgy, chemical engineering, grain, and other fields.

[0003] Traditional airlock structures require a high degree of precision between the impeller's outer diameter and the housing's inner cavity, placing high demands on component processing and assembly, and resulting in high production costs. When conveying sticky materials, they can easily cling to the impeller blades, clogging the airlock and preventing proper discharge, or even causing the impeller to become stuck. Cleaning the airlock often requires dismantling multiple airlock components and peripherals, or even removing the entire airlock, a significant inconvenience and a significant impact on production. Utility Model Content

[0004] The utility model provides a convenient-to-clean air lock, aiming to solve the technical problem that when cleaning the existing air lock, a plurality of air locks and peripheral equipment parts need to be dismantled, or even the entire air lock needs to be removed.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is to provide a convenient cleaning air lock, comprising:

[0006] The housing comprises a shell, a front cover and a rear cover, wherein the front cover and the rear cover are respectively provided at two ends of the shell and are detachably connected to the two ends of the shell;

[0007] an impeller disposed in the casing;

[0008] The drive shaft includes a fixed shaft and a movable shaft. The fixed shaft is connected to the front end cover and rotates in conjunction with it, and a first clamping structure is provided at one end facing the casing; the movable shaft is passed through the impeller, connected to the impeller and rotates synchronously, and the movable shaft rotates in conjunction with the rear end cover; a second clamping structure is provided at one end of the movable shaft facing the front end cover, and the second clamping structure is suitable for clamping or separating with the first clamping structure through axial displacement.

[0009] In a possible implementation of the convenient cleaning air lock provided by the present invention, the first clamping structure includes a clamping claw, and the second clamping structure includes a clamping slot, and the clamping claw is suitable for being clamped into the clamping slot.

[0010] In a possible implementation of the convenient cleaning type air lock provided by the present invention, the first clamping structure also includes a positioning groove, and there are several clamping claws, and several of the clamping claws are arranged around the positioning groove; the second clamping structure also includes a positioning column, and there are several clamping slots, and several of the clamping slots are arranged around the positioning column, the clamping slots correspond one-to-one to the clamping claws, and the positioning column is suitable for being inserted into the positioning groove.

[0011] In a possible implementation of the convenient cleaning air lock provided by the present invention, the edges of the clamping claw and the clamping slot are both chamfered.

[0012] In a possible implementation of the convenient cleaning air lock provided by the present invention, the end of the positioning column is chamfered.

[0013] In a possible implementation of the convenient cleaning air lock provided by the present invention, the impeller includes:

[0014] A connecting sleeve, the interior of which is suitable for passing the movable shaft through and connected to the movable shaft;

[0015] a plurality of blades, arranged around the connecting sleeve, one end of which is connected to the connecting sleeve, the blades being adapted to be spaced apart from the inner wall of the housing; and

[0016] A plurality of elastic sheets correspond one to one with the plurality of blades. The elastic sheets are arranged at one end of the blade facing away from the connecting sleeve and connected to the blade. The elastic sheets are suitable for abutting against the inner wall of the shell.

[0017] In a possible implementation of the convenient cleaning type air lock provided by the present invention, the impeller also includes multiple pressure plates and multiple bolt assemblies, the pressure plates correspond one-to-one to the blades, one end of the elastic sheet is arranged between the pressure plate and the blades, and the pressure plate is connected to the blades through several of the bolt assemblies.

[0018] In a possible implementation of the convenient cleaning air lock provided by the present invention, two first bearings are spaced apart on the fixed shaft, the two first bearings are connected to the front end cover, and first bearing covers are provided at both ends of the front end cover.

[0019] In a possible implementation of the convenient cleaning air lock provided by the present invention, a second bearing is provided on the movable shaft, the second bearing is connected to the rear end cover, and second bearing covers are provided at both ends of the rear end cover.

[0020] In a possible implementation of the convenient cleaning air lock provided by the present invention, it further includes a plurality of push rods, which all pass through the rear end cover, abut against the shell, and are threadedly connected to the rear end cover.

[0021] The beneficial effects of the convenient cleaning air lock provided by the utility model are as follows: compared with the prior art, the convenient cleaning air lock provided by the utility model has a casing provided with a rear end cover, and the drive shaft is separately arranged, consisting of a fixed shaft and a movable shaft that are mutually clamped, wherein the fixed shaft is connected to the front end cover, and the movable shaft is connected to the impeller. When the air lock needs to be cleaned, it is only necessary to remove a part of the rear end cover, and the impeller together with the movable shaft can be directly pulled out to clean the impeller and the inside of the casing. The operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a convenient cleaning air lock provided by an embodiment of the utility model;

[0023] Figure 2 A schematic diagram of the explosion structure of a convenient cleaning air lock provided by an embodiment of the present utility model;

[0024] Figure 3 A schematic diagram of the three-dimensional structure of the first clamping structure at the end of the fixed shaft of the convenient cleaning air lock provided by an embodiment of the present utility model;

[0025] Figure 4 A schematic diagram of the three-dimensional structure of the first clamping structure at the end of the movable shaft of the convenient cleaning air lock provided by an embodiment of the present utility model;

[0026] Figure 5 A schematic cross-sectional view of a convenient cleaning air lock provided by an embodiment of the present invention;

[0027] Figure 6 For the Figure 5 Cross-sectional structural diagram along line AA;

[0028] Figure 7 A schematic cross-sectional view of the structure of the convenient cleaning air lock provided by an embodiment of the present invention in a disassembled state;

[0029] Description of reference numerals:

[0030] 11. Housing; 12. Front end cover; 13. Rear end cover; 14. First bearing cover;

[0031] 15. Second bearing cap; 20. Impeller; 21. Connecting sleeve;

[0032] 22. Blade; 23. Elastic sheet; 24. Pressure plate; 25. Bolt assembly; 30. Fixed shaft;

[0033] 31. Positioning groove; 32. Clamping claw; 33. First bearing; 40. Movable shaft;

[0034] 41. Positioning column; 42. Slot; 43. Second bearing; 51. Push rod; 52. Plum blossom handle. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] Unless otherwise specified, the relative arrangement of the parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. Technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0039] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0040] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be subsequently positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used herein are interpreted accordingly.

[0041] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0042] Please also refer to Figures 1 to 7 The convenient cleaning type air lock provided by the present invention is now described. The convenient cleaning type air lock comprises a casing, an impeller 20 and a drive shaft. The casing comprises a shell 11, a front end cover 12 and a rear end cover 13. The front end cover 12 and the rear end cover 13 are respectively arranged at both ends of the shell 11 and are detachably connected to the two ends of the shell 11; the impeller 20 is arranged in the casing; the drive shaft comprises a fixed shaft 30 and a movable shaft 40. The fixed shaft 30 is connected to the front end cover 12 and rotates in conjunction with it. A first clamping structure is provided at one end facing the casing; the movable shaft 40 is passed through the impeller 20, connected to the impeller 20 and rotates synchronously with it. The movable shaft 40 is rotated in conjunction with the rear end cover 13; a second clamping structure is provided at one end of the movable shaft 40 facing the front end cover 12. The second clamping structure is suitable for clamping or separating with the first clamping structure through axial displacement.

[0043] Specifically, the housing 11 is provided with a feed port and a discharge port relative to each other. The material enters the housing 11 from the feed port, and the impeller 20 rotates to drive the material to the discharge port to complete the discharge.

[0044] The beneficial effect of the convenient cleaning type air lock provided by the embodiment of the present invention is: compared with the prior art, the convenient cleaning type air lock provided by the embodiment of the present invention has a casing provided with a rear end cover 13, and the drive shaft is separately arranged, consisting of a fixed shaft 30 and a movable shaft 40 that are mutually clamped, wherein the fixed shaft 30 is connected to the front end cover 12, and the movable shaft 40 is connected to the impeller 20. When the air lock needs to be cleaned, it is only necessary to remove the rear end cover 13, and the impeller 20 can be directly pulled out together with the movable shaft 40, and the impeller 20 and the inside of the casing 11 can be cleaned, which is simple and convenient to operate.

[0045] like Figure 3 and Figure 4 As shown, in a specific embodiment of the convenient cleaning type air lock provided by an embodiment of the present invention, the first clamping structure includes a clamping claw 32, and the second clamping structure includes a clamping slot 42. The clamping claw 32 is suitable for being clamped into the clamping slot 42 to transmit the power on the fixed shaft 30 to the movable shaft 40, thereby driving the impeller 20 to rotate.

[0046] Specifically, such as Figure 3 and Figure 4 As shown, in a specific embodiment of the convenient cleaning type air locker provided by an embodiment of the present utility model, the first clamping structure also includes a positioning groove 31, and there are several clamping claws 32, and several clamping claws 32 are arranged around the positioning groove 31; the second clamping structure also includes a positioning column 41, and there are several clamping grooves 42, and several clamping grooves 42 are arranged around the positioning column 41, and the clamping grooves 42 correspond one-to-one to the clamping claws 32, and the positioning column 41 is suitable for inserting into the positioning groove 31, so that the second clamping structure and the first clamping structure can be coaxially docked.

[0047] Further, such as Figure 3 and Figure 4 As shown, in a specific embodiment of the convenient cleaning type air locker provided by the embodiment of the present utility model, the edges of the claw 32 and the slot 42 are chamfered, and the chamfers here are rounded to facilitate the docking of the claw 32 and the slot 42.

[0048] Ruru Figure 3 and Figure 4 As shown, in a specific embodiment of the convenient cleaning type air lock provided by an embodiment of the present utility model, the end of the positioning column 41 is chamfered, and the chamfer here is an oblique angle, so that the positioning column 41 can be inserted into the positioning groove 31 to complete the docking.

[0049] like Figure 5 and Figure 6As shown, in a specific embodiment of the convenient cleaning type air lock provided by an embodiment of the present utility model, the impeller 20 includes a connecting sleeve 21, a plurality of blades 22 and a plurality of elastic sheets 23. The interior of the connecting sleeve 21 is suitable for passing a movable shaft 40 and being connected to the movable shaft 40; the plurality of blades 22 are arranged around the connecting sleeve 21, and one end is connected to the connecting sleeve 21, and the blades 22 are suitable for being spaced apart from the inner wall of the shell 11; the plurality of elastic sheets 23 correspond one to one with the plurality of blades 22, and the elastic sheet 23 is provided at one end of the blade 22 facing away from the connecting sleeve 21 and connected to the blade 22. The elastic sheet 23 is suitable for abutting against the inner wall of the shell 11. Specifically, the side surface of the elastic sheet 23 abuts against the inner wall of the shell 11 after bending, and the elastic sheet 23 is a wear-resistant rubber sheet.

[0050] It should be noted that in traditional air locks, the impeller 20 and the housing 11 are rigidly matched, which makes them prone to clogging. In this embodiment, an elastic sheet 23 is provided at the end of the blade 22, and the elastic sheet 23 is elastically matched with the housing 11 to reduce the possibility of clogging.

[0051] Further, such as Figure 5 and Figure 6 As shown, in a specific embodiment of the convenient cleaning type air lock provided by an embodiment of the present invention, the impeller 20 also includes a plurality of pressure plates 24 and a plurality of bolt assemblies 25, the pressure plates 24 correspond one to one with the blades 22, one end of the elastic sheet 23 is arranged between the pressure plate 24 and the blade 22, the pressure plate 24 is connected to the blade 22 through a plurality of bolt assemblies 25, and the elastic sheet 23 is fixed to the blade 22 through the pressure plate 24.

[0052] like Figure 1 and Figure 2 As shown, in a specific embodiment of the convenient cleaning type air lock provided by an embodiment of the present utility model, two first bearings 33 are spaced apart on the fixed shaft 30, the two first bearings 33 are connected to the front end cover 12, and first bearing covers 14 are provided at both ends of the front end cover 12.

[0053] It should be noted that since the transmission shaft is split into a fixed shaft 30 and a movable shaft 40, the movable shaft 40 is connected to the impeller 20, which can effectively limit the radial freedom. Two first bearings 33 are set on the fixed shaft 30 to limit the radial freedom of the fixed shaft 30 and avoid the fixed shaft 30 from shaking, thereby facilitating the docking of the movable shaft 40 with the fixed shaft 30.

[0054] like Figure 1 and Figure 2 As shown, in a specific embodiment of the convenient cleaning type air lock provided by an embodiment of the present invention, a second bearing 43 is provided on the movable shaft 40, the second bearing 43 is connected to the rear end cover 13, and a second bearing cover 15 is provided at both ends of the rear end cover 13.

[0055] like Figure 1 and Figure 2 As shown, in a specific embodiment of the convenient cleaning type air lock provided by the embodiment of the present invention, it also includes a plurality of push rods 51, and the plurality of push rods 51 all pass through the rear end cover 13, abut against the shell 11, and are threadedly connected to the rear end cover 13.

[0056] Furthermore, a plum blossom handle 52 is provided at the end of the push rod 51 to facilitate rotating the push rod 51 to push out the rear end cover 13 and separate the rear end cover 13 from the housing 11 .

[0057] It should be noted that when cleaning the impeller 20, the machine must be shut down first. Unscrew the four bolts securing the rear end cover 13, and rotate the plum blossom handle 52 to push the rear end cover 13 out and separate it from the housing 11. Once the rear end cover 13 stopper is completely free, it can be removed along with the movable shaft 40 and impeller 20.

[0058] After the cleaning work is completed, the rear end cover 13 is inserted together with the movable shaft 40 and the impeller 20, and the movable shaft 40 is engaged with the fixed shaft 30. Tightening the four fixing bolts of the rear end cover 13 can restore the air lock to the working state.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A convenient cleaning air lock, characterized in that: include: The housing comprises a shell, a front cover and a rear cover, wherein the front cover and the rear cover are respectively provided at two ends of the shell and are detachably connected to the two ends of the shell; an impeller disposed in the casing; as well as The drive shaft includes a fixed shaft and a movable shaft. The fixed shaft is connected to the front end cover and rotates in conjunction with it, and a first clamping structure is provided at one end facing the casing; the movable shaft is passed through the impeller, connected to the impeller and rotates synchronously, and the movable shaft rotates in conjunction with the rear end cover; a second clamping structure is provided at one end of the movable shaft facing the front end cover, and the second clamping structure is suitable for clamping or separating with the first clamping structure through axial displacement.

2. The convenient cleaning air lock according to claim 1, characterized in that: The first clamping structure includes a clamping claw, and the second clamping structure includes a clamping slot, and the clamping claw is suitable for being clamped into the clamping slot.

3. The convenient cleaning air lock according to claim 2, characterized in that: The first clamping structure also includes a positioning groove, and there are several clamping claws, and several of the clamping claws are arranged around the positioning groove; the second clamping structure also includes a positioning column, and there are several clamping slots, and several of the clamping slots are arranged around the positioning column, the clamping slots correspond to the clamping claws one by one, and the positioning column is suitable for being inserted into the positioning groove.

4. The convenient cleaning air lock according to claim 3, characterized in that: The edges of the clamping claw and the clamping slot are both chamfered.

5. The convenient cleaning air lock according to claim 4, characterized in that: The end of the positioning column is chamfered.

6. The convenient cleaning air lock according to claim 1, characterized in that: The impeller comprises: A connecting sleeve, the interior of which is suitable for passing the movable shaft through and connected to the movable shaft; a plurality of blades, arranged around the connecting sleeve, one end of which is connected to the connecting sleeve, the blades being adapted to be spaced apart from the inner wall of the housing; and A plurality of elastic sheets correspond one to one with the plurality of blades. The elastic sheets are arranged at one end of the blade facing away from the connecting sleeve and connected to the blade. The elastic sheets are suitable for abutting against the inner wall of the shell.

7. The convenient cleaning air lock according to claim 6, characterized in that: The impeller further includes a plurality of pressure plates and a plurality of bolt assemblies. The pressure plates correspond to the blades one by one. One end of the elastic sheet is arranged between the pressure plates and the blades. The pressure plates are connected to the blades via a plurality of the bolt assemblies.

8. The convenient cleaning air lock according to claim 1, characterized in that: Two first bearings are spaced apart on the fixed shaft, the two first bearings are connected to the front end cover, and first bearing covers are provided at both ends of the front end cover.

9. The convenient cleaning air lock according to claim 1, characterized in that: The movable shaft is provided with a second bearing, the second bearing is connected to the rear end cover, and both ends of the rear end cover are provided with a second bearing cover.

10. The convenient cleaning air lock according to claim 1, characterized in that: It also includes a plurality of push rods, which all pass through the rear end cover, abut against the shell, and are threadedly connected to the rear end cover.

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