Filter screen disassembling and assembling mechanism for column type screen exchanger

Abstract

The filter screen dismounting and mounting mechanism comprises a screen changer box body, a driving air cylinder, a filter column and two groups of filter screens, and further comprises a pair of mounting ring grooves, each mounting ring groove is internally provided with a mounting cylinder, each mounting cylinder is divided into a left part and a right part, and one ends of the left part and the right part are mutually hinged through a hinge; each group of filter screens are respectively arranged on the left / right part of each mounting cylinder, the filter screen further comprises a pair of mounting structures which are respectively used for fixing each mounting cylinder in the corresponding mounting ring groove, and in daily use, by adopting the technical scheme, the corresponding mounting structures are operated, and the connection between the corresponding mounting cylinders and the corresponding ring grooves is released, so that the filter screen is convenient to mount and dismount. During installation, the left part and the right part of the installation cylinder are moved to the two sides of the installation ring groove firstly and then folded, and then the installation cylinder is fixed by operating the installation structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to a flow -coating film screen changing technical field, concretely relates to a filter screen dismounting mechanism for column screen changer. BACKGROUND

[0002] Now flow -coating film is in production, and the filtering screen piece effect is not good and needs to be changed frequently, and the filtering effect is not good and can lead to the problem that flow -coating film has more black spots, holes and crystal points, and the current column screen changer filters by the core shaft with the filter screen, when the filter screen is replaced, the core shaft is pulled out, the screen piece is replaced and put back to complete the screen changing, the traditional screen changer usually needs to use tools such as bolts to fix the screen, so that the screen is fixed on the screen frame, and the screen is replaced, so it is more troublesome to use tools, and the replacement time is relatively long, so it needs to be improved. SUMMARY

[0003] The utility model aims at solving one of the technical problems in the prior art.

[0004] The application provides a filter screen dismounting mechanism for a column screen changer, which comprises a screen changer box body, a driving cylinder, a filter column and two groups of filter screens, and further comprises a pair of mounting ring grooves arranged on the peripheral wall of the filter column, each mounting ring groove is provided with a mounting cylinder, each mounting cylinder is divided into left and right parts and is hingedly connected at one end, each group of filter screens is arranged on the left or right part of each mounting cylinder, and a pair of mounting structures are further arranged and used for fixing each mounting cylinder in the corresponding mounting ring groove.

[0005] The mounting structure comprises a floating hole penetrating through the left and right parts of the mounting cylinder along the axis of the mounting cylinder, a floating rod slidingly arranged in each floating hole, a jack plug arranged on the inner end face of the mounting ring groove and an extension control assembly arranged on the top of the mounting cylinder, and the extension control assembly is used for controlling the lifting of each floating rod.

[0006] A reset slot is formed in the middle of each floating rod, a spring is arranged in each reset slot, a bolt is inserted into the peripheral wall of the mounting cylinder, each bolt is inserted into the corresponding reset slot, and the peripheral wall and each spring abut against the jack plug end in sliding cooperation with each reset slot.

[0007] The extension control assembly comprises an outer ring groove arranged on the outer end of the mounting ring groove, an outer threaded sleeve floatingly arranged in the outer ring groove through a limiting piece, a threaded outer wall of the outer threaded sleeve and a driving sleeve connected through threads, and a top ring groove is further arranged on the top of the mounting cylinder, the top ring groove is in communication with the outer end of each floating hole, the outer threaded sleeve can extend into the top ring groove, and the driving sleeve is rotationally connected with the outer end face of the filter column through a rotating connecting piece.

[0008] The limiting piece has a plurality of limiting pieces, which are arranged in the outer ring groove in a circumferential direction, and are used for limiting the circumferential degree of freedom of the outer threaded sleeve, so that the outer threaded sleeve can only slide along the axis of the mounting cylinder.

[0009] The limiting member comprises a sliding groove arranged on the inner wall of the outer threaded sleeve and a protrusion fixed on the peripheral wall of the outer ring groove and slidingly matched with the corresponding sliding groove, and the sliding groove and the protrusion are parallel to the axis of the filter column.

[0010] The rotating connecting member comprises a trapezoidal ring groove arranged on the end face of the filter column, and the inner peripheral wall of the outer end of the driving sleeve is fixed with a snap ring, the inner circle of the snap ring is inwardly inclined and matched with the peripheral wall of the trapezoidal ring groove, and the trapezoidal ring groove is fixed with a pressing ring through a bolt, and the outer peripheral wall of the pressing ring is inclined and slidingly frictional with the outer wall of the inclined inner circle of the snap ring.

[0011] The beneficial effects of the utility model are as follows:

[0012] The left and right two parts of the mounting cylinder can be opened / folded with the hinge as the axis, the rotating driving sleeve can control the outer threaded sleeve to ascend / descend, when the rotating driving sleeve is rotated, the outer threaded sleeve can be controlled to enter / exit the top ring groove through the threaded transmission, before the mounting cylinder is folded / opened, each floating rod is lowered and inserted into the corresponding insertion hole / each floating rod is raised and separated from the corresponding insertion hole under the driving of the spring, so that the folded mounting cylinder is fixed / removed from the fixing of the mounting cylinder to be opened, and the disassembly and assembly time of the filter screen is shortened through the above-mentioned mode. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a front view of the filter screen dismounting mechanism for the column type screen changer in the embodiment of the application;

[0014] Figure 2 It is a sectional view of the filter screen dismounting mechanism for the column type screen changer in the embodiment of the application;

[0015] Figure 3 It is Figure 2 It is a local enlarged structure schematic view of A in the middle;

[0016] Figure 4 It is a top view of the mounting cylinder (folded state) in the embodiment of the application;

[0017] Figure 5 It is a top view of the mounting cylinder (opened state) in the embodiment of the application.

[0018] REFERENCE NUMERALS

[0019] 1-screen changer box, 2-driving cylinder, 3-filter column, 4-filter screen, 5-mounting ring groove, 6-mounting cylinder, 7-hinge, 8-mounting structure, 81-floating hole, 82-floating rod, 83-insertion hole, 84-return groove, 85-spring, 86-peg, 9-telescopic control assembly, 91-outer ring groove, 92-limiting member, 921-protrusion, 93-outer threaded sleeve, 94-driving sleeve, 95-top ring groove, 96-rotating connecting member, 961-trapezoidal ring groove, 962-snap ring, 963-pressing ring. DETAILED DESCRIPTION

[0020] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0021] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0022] The following description, in conjunction with the accompanying drawings, details the disassembly and assembly mechanism for the column-type screen changer 4 provided in this application through specific embodiments and application scenarios.

[0023] Example 1:

[0024] like Figures 1 to 5 As shown in the figure, this application embodiment provides a filter screen 4 disassembly and assembly mechanism for a column-type filter screen changer, including a filter screen changer housing 1, a drive cylinder 2, a filter column 3 and two sets of filter screens 4, and also includes a pair of mounting ring grooves 5 disposed on the peripheral wall of the filter column 3. Each mounting ring groove 5 is provided with a mounting cylinder 6, and each mounting cylinder 6 is divided into left and right parts and one end is hinged to each other by a hinge 7. Each set of filter screens 4 is respectively disposed on the left and right parts of each mounting cylinder 6. It also includes a pair of mounting structures 8, which are used to fix each mounting cylinder 6 in the corresponding mounting ring groove 5.

[0025] Furthermore, the mounting structure 8 includes floating holes 81 that pass through both ends of the left / right portion of the mounting cylinder 6 parallel to the axis of the mounting cylinder 6, floating rods 82 that slide through each floating hole 81, insertion holes 83 that are set in the inner end face of the mounting ring groove 5, and telescopic control components 9 that are set on the top of the mounting cylinder 6. The telescopic control components 9 are used to control the raising and lowering of each floating rod 82.

[0026] Furthermore, each floating rod 82 has a reset groove 84 in the middle, and each reset groove 84 is provided with a spring 85. A pin 86 is inserted into the peripheral wall of the mounting cylinder 6. Each pin 86 is inserted into the corresponding reset groove 84, slides with each reset groove 84, and the peripheral wall abuts against the end of each spring 85 facing the insertion hole 83.

[0027] Furthermore, the telescopic control assembly 9 includes an outer annular groove 91 disposed at the outer end of the mounting annular groove 5. An external threaded sleeve 93 is floatingly mounted in the outer annular groove 91 by a limiting member 92. The outer wall of the external threaded sleeve 93 is threaded and connected to a drive sleeve 94 by the thread. The top of the mounting cylinder 6 is also provided with a top annular groove 95, which communicates with the outer ends of each floating hole 81. The external threaded sleeve 93 can extend into the top annular groove 95. The drive sleeve 94 is rotatably connected to the outer end face of the filter column 3 by a rotating connector 96.

[0028] In this embodiment of the application, due to the above-described structure, when installing the filter screen 4, the left and right parts of the mounting cylinder 6 are opened with the hinge 7 as the axis, so that the left and right parts of the mounting cylinder 6 are separated from the axis end until the distance is greater than the diameter of the mounting ring groove 5. Then, the left and right parts of the mounting cylinder 6 are moved to both sides of the mounting ring groove 5, and then the left and right parts are closed so that the mounting sleeve is fitted in the mounting ring groove 5. Then, the drive sleeve 94 is rotated, and the external threaded sleeve 93 is inserted into the top ring groove 95 through the threaded transmission. Each floating rod 82 is pressed, so that the other end of each floating rod 82 is inserted into the corresponding insertion hole 83. At the same time, each reset groove 84 is lowered, and each spring 85 is compressed and stores elastic potential energy, thus completing the installation of the filter screen 4.

[0029] When disassembling the filter screen 4, rotate the drive sleeve 94 in the opposite direction. Through the threaded transmission, the external threaded sleeve 93 is disengaged from the top annular groove 95. Each spring 85 releases its elastic potential energy to push each reset groove 84 and each floating rod 82 to rise. Each floating rod 82 disengages from the corresponding insertion hole 83. Then, pry open the left and right parts of the mounting cylinder 6 until the distance between the left and right parts of the mounting cylinder 6 away from the hinge 7 end is greater than the diameter of the mounting annular groove 5. Then, the mounting cylinder 6, together with the filter screen 4 set on the mounting cylinder 6, can be removed from the filter column 3.

[0030] The filter column 3 consists of three circular plates connected to each other by multiple columns, and the adjacent circular plates and the outward-facing peripheral walls of each column form an installation annular groove 5.

[0031] When rotating the drive sleeve 94, staff can wear silicone gloves to increase the friction between their palms and the surrounding wall of the drive sleeve 94, and prevent hand sweat from causing slippage between their palms and the drive sleeve 94.

[0032] Example 2:

[0033] like Figures 2 to 5 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the limiting member 92 has several members, which are circumferentially spaced in the outer annular groove 91 to limit the circumferential degree of freedom of the external threaded sleeve 93, so that the external threaded sleeve 93 can only slide along the axis of the mounting cylinder 6.

[0034] Further, the limiting member 92 comprises a sliding groove arranged on the inner wall of the outer threaded sleeve 93 and a protrusion 921 fixed on the circumferential wall of the outer ring groove 91 and slidingly matched with the corresponding sliding groove, both of which are parallel to the axis of the filter column 3.

[0035] Further, the rotating connecting member 96 comprises a trapezoidal ring groove 961 arranged on the end face of the filter column 3, a snap ring 962 fixed on the outer end of the inner circumferential wall of the driving sleeve 94, the inner circle of the snap ring 962 being inwardly inclined and matched with the circumferential wall of the trapezoidal ring groove 961, and a compression ring 963 fixed in the trapezoidal ring groove 961 by a bolt, the outer circumferential wall of the compression ring 963 being inclined and slidingly matched with the outer wall of the inwardly inclined inner circle of the snap ring 962.

[0036] In this embodiment of the present application, due to the above-mentioned structure, the outer threaded sleeve 93 is lifted in the outer ring groove 91 by the threaded transmission when the driving sleeve 94 rotates, and meanwhile each protrusion 921 slides in the corresponding sliding groove, so as to ensure that the sliding direction of the outer threaded sleeve 93 is parallel to the axis of the filter column 3, and the compression ring 963 and the snap ring 962 are matched to make the driving sleeve 94 rotate and be arranged at both ends of the filter column 3.

[0037] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, so that a process, method, article, or apparatus that includes a list of elements not only includes those elements, but also includes other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element. In addition, it should be pointed out that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0038] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, which are only illustrative and not limiting, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A filter screen dismounting mechanism for a column-type screen changer, comprising a screen changer housing, a drive cylinder, a filter column and two sets of filter screens, characterized in that, Still comprising a pair of mounting ring grooves arranged on the peripheral wall of the filter column, each mounting ring groove is provided with a mounting cylinder, each mounting cylinder is divided into left and right parts and is hingedly connected at one end, each group of filter screens is arranged on the left and right parts of the mounting cylinder, and a pair of mounting structures are arranged for fixing the mounting cylinders in the corresponding mounting ring grooves.

2. The filter screen mounting and demounting mechanism for a column screen changer according to claim 1, characterized in that The mounting structure comprises floating holes penetrating through the left and right parts of the mounting cylinder along the axis of the mounting cylinder, floating rods slidingly arranged in the floating holes, a jack plug arranged on the inner end face of the mounting ring groove, and an extension control assembly arranged on the top of the mounting cylinder, which is used to control the lifting of the floating rods.

3. The filter screen mounting and demounting mechanism for a column screen changer according to claim 2, characterized in that The middle part of each floating rod is provided with a reset slot, each reset slot is provided with a spring, and a latch is arranged in the peripheral wall of the mounting cylinder, each latch is inserted into the corresponding reset slot, and the peripheral wall is in sliding contact with the spring towards the jack plug end.

4. The filter screen mounting and demounting mechanism for a column screen changer according to claim 2, characterized in that The extension control assembly comprises an outer ring groove arranged on the outer end of the mounting ring groove, an outer threaded sleeve floatingly arranged in the outer ring groove through a limiting piece, a threaded outer wall of the outer threaded sleeve, a driving sleeve connected through threads, a top ring groove arranged on the top of the mounting cylinder, the top ring groove being in communication with the outer end of each floating hole, the outer threaded sleeve being capable of extending into the top ring groove, and the driving sleeve being rotatably connected to the outer end face of the filter column through a rotating connecting piece.

5. The filter screen mounting and demounting mechanism for a column screen changer according to claim 4, characterized in that The limiting piece has a plurality of limiting pieces arranged in the outer ring groove in a circumferential direction, which is used to limit the circumferential freedom of the outer threaded sleeve, so that the outer threaded sleeve can only slide along the axis of the mounting cylinder.

6. A filter screen mounting and demounting mechanism for a column screen changer according to claim 5, characterized in that The limiting piece comprises a sliding groove arranged on the inner wall of the outer threaded sleeve and a convex rib fixedly arranged on the peripheral wall of the outer ring groove, which is in sliding contact with the corresponding sliding groove, and the sliding groove and the convex rib are parallel to the axis of the filter column.

7. The filter screen mounting and demounting mechanism for a column screen changer according to claim 5, characterized in that The rotating connecting piece comprises a trapezoidal ring groove arranged on the end face of the filter column, an inner ring of the snap ring is fixedly arranged on the outer end of the inner peripheral wall of the driving sleeve, the inner ring is inclined inward and is in contact with the peripheral wall of the trapezoidal ring groove, a pressing ring is fixedly arranged in the trapezoidal ring groove through a bolt, and the outer peripheral wall of the pressing ring is inclined and in sliding friction with the outer wall of the inclined inner ring of the snap ring.

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