A dirt intercepting screen for a paint delivery valve

Abstract

The utility model relates to filter screen technical field, concretely is a kind of impurity interception filter screen for coating delivery valve, including main installation pipe and vice installation pipe, the inside of main installation pipe can threadedly connect vice installation pipe, the inside right side of main installation pipe and set filter piece, the right side of filter piece is tightly contacted with the left wall of vice installation pipe, the outer wall of main installation pipe is parallel with the outer wall of vice installation pipe, annular recess is set in the inside of main installation pipe, main left thread slot is set in the inside left side of main installation pipe, main right thread slot is set in the inside right side of main installation pipe, by main installation pipe and vice installation pipe split design, it can be conveniently disassembled and assembled to improve the usability of device, by the filter piece filled in main installation pipe, coating can be secondary filtered to improve coating delivery quality, by the two groups of filter screens of different mesh diameter installed in filter piece, further improve filtering effect.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to an impurity interception filter for a paint delivery valve. Background Technology

[0002] During the production and transportation of coatings, the presence of impurities poses a significant threat to product quality and equipment operation. Coating raw materials (such as resins, pigments, and solvents) are easily contaminated with particulate impurities (such as metal fragments, glue lumps, and fibers), colloidal substances, or gels formed by chemical reactions during storage, transportation, and mixing. If these impurities are not effectively intercepted, they may cause conveying valve jamming, pipeline blockage, and even affect the uniformity of downstream coating processes, resulting in surface defects in the coating film (such as particles and pinholes). For example, CN214826763U discloses a paint conveying device for paint processing, including a conveyor belt, a support frame matched to the outer wall of the conveyor belt, a guide hopper on the outer wall of the support frame, one end of the guide hopper being movably connected to the support frame through a connecting component, a push block on the bottom of the outer wall of the other end of the guide hopper, a hydraulic push rod on the outer wall of the push block, a guide rail on the outer wall of the support frame, the push block being movably connected to the guide rail through a first connecting rod, a filter screen on the inner wall of the guide hopper, and a handle on one side of the filter screen extending to the outer wall of the guide hopper. This invention allows for convenient and quick adjustment of the height and distance of the paint delivery destination without moving the conveyor belt. It is simple to operate, improves work efficiency, and can filter the conveyed paint to prevent large solid particles from affecting subsequent processes. It also allows for quick replacement of filters with different mesh sizes, increasing the device's versatility. However, after production, the paint is transported via a pump. Due to the paint's viscosity, some larger particles can affect the subsequent spraying effect, and large particles accumulating on the pump can easily cause blockage and damage. Furthermore, the existing filters installed within the pump are difficult to replace and inefficient. Therefore, there is an urgent need to design an impurity interception filter for paint delivery valves to solve these problems. Utility Model Content

[0003] The purpose of this utility model is to provide an impurity interception filter for a paint delivery valve, in order to solve the problems mentioned in the background art, which are that due to the viscosity of the paint itself, some larger particles affect the subsequent paint spraying effect, and when larger particles accumulate on the delivery pump, they can easily cause blockage and damage to the delivery pump. At the same time, the existing filter installed in the delivery pump is difficult to replace and has low efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an impurity interception filter for a paint delivery valve, comprising a main mounting pipe and a secondary mounting pipe, wherein the inner side of the main mounting pipe is threadedly connected to the secondary mounting pipe, a filter element is sleeved on the inner right side of the main mounting pipe, the right side of the filter element is in close contact with the left wall of the secondary mounting pipe, and the outer wall of the main mounting pipe is parallel to the outer wall of the secondary mounting pipe.

[0005] Preferably, the main mounting tube has an annular groove inside, a main left threaded groove on the left side inside the main mounting tube, and a main right threaded groove on the right side inside the main mounting tube.

[0006] Preferably, a secondary internal thread groove is formed on the right side of the inner side of the secondary mounting tube, and an extension ring block is installed inside the left end of the secondary mounting tube.

[0007] Preferably, an annular groove is provided on the right side of the center of the extension ring block, and a rubber sealing ring is placed in the annular groove. A secondary external thread groove is provided on the outer wall of the left end of the extension ring block.

[0008] Preferably, the left end of the extension ring is threaded inside the right side of the main mounting tube, and the rubber sealing ring seals the connection between the extension ring and the main mounting tube.

[0009] Preferably, the filter element includes a mounting ring block, a left filter screen, and a right filter screen, wherein the left filter screen is installed on the left side inside the mounting ring block, and the right filter screen is installed on the right side inside the mounting ring block.

[0010] Preferably, the upper and lower sides of the right end of the mounting ring block are fixed with fixing blocks, and square grooves are opened inside the two sets of fixing blocks. The mesh diameter of the right filter screen is twice that of the left filter screen.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This impurity interception filter for a paint delivery valve features a detachable main and auxiliary installation pipe design, which facilitates disassembly and assembly, improving the usability of the device. The filter element filled in the main installation pipe enables secondary filtration of the paint, thereby improving the quality of paint delivery. The two sets of filter screens with different mesh sizes installed in the filter element further enhance the filtration effect.

[0012] This impurity interception filter for a paint delivery valve can be installed inside the main installation pipe via an extension ring block provided in the auxiliary installation pipe, thus facilitating overall installation inside the delivery pump for convenient use. The annular groove opened in the extension ring block and filled with a rubber sealing ring further improves the sealing performance and prevents the filter element from falling off. The fixing block fixed on the right side of the installation ring block makes it easy to remove with tools for subsequent replacement. Attached Figure Description

[0013] Figure 1 This is a front sectional view of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a frontal dissection view of the main body of this utility model; Figure 4 This is a cross-sectional view of the auxiliary mounting pipe of this utility model; Figure 5 This is a schematic diagram of the cross-section of the main mounting pipe of this utility model.

[0014] In the diagram: 1. Main mounting tube; 11. Annular groove; 12. Main left threaded groove; 13. Main right threaded groove; 2. Secondary mounting tube; 20. Secondary internal threaded groove; 21. Extension ring block; 211. Secondary external threaded groove; 212. Annular groove; 213. Rubber sealing ring; 3. Filter element; 301. Fixing block; 302. Square groove; 31. Mounting ring block; 32. Left filter screen; 33. Right filter screen. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-5 One embodiment provided by this utility model: An impurity interception filter for a paint delivery valve includes a main mounting pipe 1 and a secondary mounting pipe 2. The inner side of the main mounting pipe 1 is threadedly connected to the secondary mounting pipe 2. A filter element 3 is sleeved on the inner right side of the main mounting pipe 1. The right side of the filter element 3 is in close contact with the left wall of the secondary mounting pipe 2. The outer wall of the main mounting pipe 1 is parallel to the outer wall of the secondary mounting pipe 2.

[0017] As a further feature of this invention, the main mounting tube 1 has an annular groove 11 inside, a main left threaded groove 12 on the left side inside the main mounting tube 1, and a main right threaded groove 13 on the right side inside the main mounting tube 1, which is beneficial for docking and installation with the auxiliary mounting tube.

[0018] Furthermore, an internal threaded groove 20 is opened on the right side of the auxiliary mounting tube 2, and an extension ring block 21 is installed inside the left end of the auxiliary mounting tube 2. An annular groove 212 is opened on the right side of the center of the extension ring block 21, and a rubber sealing ring 213 is placed in the annular groove 212. An external threaded groove 211 is opened on the outer wall of the left end of the extension ring block 21, and the thread of the left end of the extension ring block 21 is installed inside the right side of the main mounting tube 1. The rubber sealing ring 213 seals the connection between the extension ring block 21 and the main mounting tube 1, which can limit the center of the dog food component for filtering.

[0019] As a further improvement of this utility model, the filter element 3 includes an mounting ring block 31, a left filter screen 32, and a right filter screen 33. The left filter screen 32 is installed on the left side inside the mounting ring block 31, and the right filter screen 33 is installed on the right side inside the mounting ring block 31. Fixing blocks 301 are fixed on the upper and lower sides of the right end of the mounting ring block 31. Square grooves 302 are opened inside the two sets of fixing blocks 301. The mesh diameter of the right filter screen 33 is twice that of the left filter screen 32, which can achieve efficient filtration of coatings and improve the coating delivery efficiency.

[0020] Working principle: In use, the user first fills the side of the mounting ring block 31 without the fixing block 301 into the inside right side of the main mounting tube 1, and then fits the rubber sealing ring 213 into the annular groove 212 opened in the extension ring block 21. Then, the extension ring block 21 fixed at the left end of the auxiliary mounting tube 2 is threaded onto the right side of the main mounting tube 1. Finally, the entire set of mounting tubes is filled into the appropriate delivery pump input end. In use, the paint enters through the right input end of the auxiliary mounting tube 2, and after being filtered by the right filter screen 33 and the left filter screen 32 installed in the center of the mounting ring block 31, it can be delivered to the delivery pump through the main mounting tube 1. When it is necessary to replace the filter screen, first turn off the delivery device to prevent the paint from being delivered, then rotate the auxiliary mounting tube 2 to separate it from the main mounting tube 1, and then use a tool to hook the fixing block 301 on the right side of the mounting ring block 31 to pull it out for replacement. The above is the complete working principle of this utility model.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A dirt interception screen for a paint delivery valve comprising a main mounting tube (1) and a secondary mounting tube (2), characterized in that: The inner side of the main mounting tube (1) can be threaded to the auxiliary mounting tube (2). The inner right side of the main mounting tube (1) is fitted with a filter element (3). The right side of the filter element (3) is in close contact with the left wall of the auxiliary mounting tube (2). The outer wall of the main mounting tube (1) is parallel to the outer wall of the auxiliary mounting tube (2).

2. The impurity interception filter screen for a paint delivery valve according to claim 1, characterized in that: The main mounting tube (1) has an annular groove (11) inside, a main left thread groove (12) is opened on the left side inside the main mounting tube (1), and a main right thread groove (13) is opened on the right side inside the main mounting tube (1).

3. An impurity interception screen for a paint delivery valve according to claim 1, wherein: The auxiliary mounting tube (2) has an internal threaded groove (20) on the right side inside, and an extension ring block (21) is installed inside the left end of the auxiliary mounting tube (2).

4. An impurity interception screen for a paint delivery valve according to claim 3, characterized in that: An annular groove (212) is provided on the right side of the center of the extension ring block (21), and a rubber sealing ring (213) is placed in the annular groove (212). A secondary external thread groove (211) is provided on the outer wall of the left end of the extension ring block (21).

5. A dirt screen for a paint delivery valve according to claim 4, wherein: The left end of the extension ring block (21) is threaded inside the right side of the main mounting tube (1), and the rubber sealing ring (213) seals the connection between the extension ring block (21) and the main mounting tube (1).

6. An impurity interception screen for a paint delivery valve according to claim 1, wherein: The filter element (3) includes a mounting ring block (31), a left filter screen (32) and a right filter screen (33). The left filter screen (32) is installed on the left side inside the mounting ring block (31), and the right filter screen (33) is installed on the right side inside the mounting ring block (31).

7. An impurity interception screen for a paint delivery valve according to claim 6, characterized in that: The right end of the mounting ring (31) is fixed with a fixing block (301) on both the upper and lower sides. The two sets of fixing blocks (301) have square grooves (302) inside. The mesh diameter of the right filter (33) is twice that of the left filter (32).

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