Pneumatic change-over valve of industrial printer

Abstract

The utility model discloses a pneumatic change-over valve of an industrial printer, which comprises a valve body, a liquid inlet, a left liquid outlet and a right liquid outlet, the liquid inlet, the left liquid outlet and the right liquid outlet are arranged on the surface of the valve body, a valve cover is mounted on the surface of the top of the valve body, an inner rod body with a hole is further mounted in the valve body, and a valve rod is fixed on the top of the inner rod body with the hole. The top end of the valve rod penetrates to the top of the valve deck, and a plurality of quick disassembly and assembly mechanisms are arranged between the valve deck and the valve body. The quick disassembly and assembly mechanism comprises a side seat block, a movable rod and a limiting clamping plate; according to the utility model, the pneumatic change-over valve of the industrial printer in the prior art is improved and optimized, and the quick disassembly and assembly mechanism is additionally arranged on the basis of the original structure, so that the valve body and the valve cover can be quickly assembled and disassembled, and the valve body and the valve cover can be quickly disassembled and assembled conveniently when the change-over valve is damaged subsequently; the later maintenance convenience of the whole change-over valve is improved, and meanwhile the overall connection sealing performance can be guaranteed under the effect of the sealing structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of printer conversion valves, and in particular relates to a pneumatic conversion valve for an industrial printer. Background Art

[0002] Industrial printers are printing devices used in the industrial field, and a conversion valve is required in the ink supply system of industrial printers. For example, the existing patent with publication number CN203757063U discloses "a pneumatic conversion valve, including a valve body, a valve stem, a valve cover, and a power actuator. The valve stem is movably connected to the valve body and is transmission-connected to the power actuator. A fluid inlet and two fluid outlets are provided in the valve body. A valve stem is provided at the connection between the fluid inlet and the two fluid outlets. The fluid inlet can be connected to at most one of the fluid outlets through the valve stem." It can be seen that the application describes a common industrial printer pneumatic conversion valve, which can realize the fluid flow in the ink supply system of the industrial printer;

[0003] However, when the pneumatic conversion valve for industrial printers in the above patent is actually used, the valve cover on the top of the valve body is mostly fixed on the top of the valve body by multiple screws, and the overall disassembly and assembly convenience is not higher. When the conversion valve is damaged and needs to be disassembled for maintenance, it will take a lot of time to disassemble and assemble the valve cover, which reduces the convenience of the later maintenance of the entire conversion valve. For this reason, the utility model needs to improve and optimize the pneumatic conversion valve of the existing industrial printer. Utility Model Content

[0004] The purpose of the utility model is to provide a pneumatic conversion valve for an industrial printer to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pneumatic conversion valve for an industrial printer, comprising a valve body and a liquid inlet, a left liquid outlet and a right liquid outlet arranged on the surface of the valve body, a valve cover is installed on the top surface of the valve body, an inner rod body with a hole is also installed in the valve body, and a valve stem is fixed on the top of the inner rod body with a hole, the top end of the valve stem penetrates to the top of the valve cover, and a plurality of quick disassembly mechanisms are arranged between the valve cover and the valve body;

[0006] The quick-disassembly mechanism comprises a side seat block, a movable rod and a limit clamping plate, the side seat block is fixed to the outer surface of the valve body, the movable rod is movably installed on the top of the side seat block, the top of the movable rod is fixed with a limit clamping plate, one end of the limit clamping plate extends to the bottom edge of the valve cover to press the valve cover to limit, the quick-disassembly mechanism also comprises a limit clamping block and a limit clamping groove, the bottom surface of the limit clamping plate is fixed with a limit clamping block, the bottom edge of the valve cover is provided with a limit clamping groove corresponding to the limit clamping block, the limit clamping block is inserted into the limit clamping groove, the side seat block is provided with a cylindrical inner slide groove, the cylindrical inner slide groove is provided with a cylindrical inner sliding block and a spring, the spring is at the top of the cylindrical inner sliding block, the bottom end of the movable rod passes through the inner side of the cylindrical inner slide groove and is fixedly connected to the cylindrical inner sliding block.

[0007] Preferably, a circular top hole communicating with the cylindrical inner slide groove is formed on the top surface of the side seat block, and the circular top hole is adapted to fit the movable rod.

[0008] Preferably, the quick-disassembly mechanism also includes a sealing structure, which includes an annular rubber plug and an annular slot, wherein the annular rubber plug is fixed to the bottom surface of the valve cover, and the annular slot is opened on the top surface of the valve body, and the annular rubber plug is inserted into the annular slot. The inner wall of the annular rubber plug is provided with a plurality of integrated side clamping blocks, and one side inner wall of the annular slot is provided with a plurality of side clamping grooves corresponding to the side clamping blocks, and the side clamping blocks are squeezed into the side clamping grooves.

[0009] Preferably, the liquid inlet is arranged at the bottom of the valve body, and the left liquid outlet and the right liquid outlet are respectively arranged on the two side surfaces of the valve body.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model improves and optimizes the pneumatic conversion valve of the industrial printer in the prior art, and adds a quick disassembly mechanism on its original structural extrusion, so that the valve body and the valve cover can be quickly assembled and disassembled, which facilitates the rapid disassembly and assembly of the valve body and the valve cover when the subsequent conversion valve is damaged, improves the convenience of later maintenance of the entire conversion valve, and at the same time, the overall connection sealing can be guaranteed under the action of the sealing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional diagram of the utility model;

[0012] Figure 2 For this utility model Figure 1 A partial enlarged view of the middle A area;

[0013] Figure 3 It is a cross-sectional view of the utility model;

[0014] Figure 4 For this utility model Figure 3 A partial enlarged view of the middle B area;

[0015] In the figure: 1. valve body; 11. liquid inlet; 12. left liquid outlet; 13. right liquid outlet; 2. valve cover; 3. quick disassembly mechanism; 31. side seat block; 32. movable rod; 33. limit clamping plate; 34. limit clamping block; 35. limit clamping slot; 36. cylindrical inner slide groove; 37. cylindrical inner slide block; 38. spring; 39. annular rubber plug; 310. annular slot; 311. side clamping block; 312. side clamping slot; 4. valve stem; 41. inner stem body with hole. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Example 1

[0018] See also Figures 1 to 4 , which is the first embodiment of the utility model, and this embodiment provides a technical solution: a pneumatic conversion valve for an industrial printer, comprising a valve body 1 and a liquid inlet 11, a left liquid outlet 12 and a right liquid outlet 13 arranged on the surface of the valve body 1, a valve cover 2 is installed on the top surface of the valve body 1, an inner rod body 41 with a hole is also installed in the valve body 1, and a valve stem 4 is fixed on the top of the inner rod body 41 with a hole, and the top end of the valve stem 4 passes through the top of the valve cover 2, and a plurality of quick disassembly mechanisms 3 are arranged between the valve cover 2 and the valve body 1;

[0019] The quick disassembly mechanism 3 includes a side seat block 31, a movable rod 32 and a limit clamping plate 33. The side seat block 31 is welded and fixed to the outer surface of the valve body 1. The movable rod 32 is movably installed on the top of the side seat block 31. The top of the movable rod 32 is fixed with a limit clamping plate 33. One end of the limit clamping plate 33 extends to the bottom edge of the valve cover 2 to press the valve cover 2 to limit the position, thereby realizing the compression and limit of the valve cover 2, ensuring the installation stability of the valve cover 2, and also improving the convenience of disassembly and assembly between the valve cover 2 and the valve body 1. The quick disassembly mechanism 3 also includes a limit clamping block 3 4 and a limiting card slot 35, a limiting card block 34 is fixed on the bottom surface of the limiting card plate 33, a limiting card slot 35 corresponding to the limiting card block 34 is opened at the bottom edge of the valve cover 2, the limiting card block 34 is inserted into the limiting card slot 35, so that the limiting card plate 33 can be stably pressed on the bottom edge of the valve cover 2, a cylindrical inner slide groove 36 is opened in the side seat block 31, a cylindrical inner slide block 37 and a spring 38 are arranged in the cylindrical inner slide groove 36, the spring 38 is at the top of the cylindrical inner slide block 37, and the bottom end of the movable rod 32 penetrates The movable rod 32 is connected to the inner side of the cylindrical inner slide groove 36 and is fixedly connected to the cylindrical inner slide block 37. Under the pushing action of the spring 38, the movable rod 32 will always pull down the limit card plate 33 during daily use, so that the limit card plate 33 is stably pressed on the bottom edge of the valve cover 2, and the limit card block 34 is always stuck in the limit card groove 35, thereby ensuring the sealing of the valve cover 2 and the valve body 1 after being quickly connected through the quick disassembly mechanism 3. If the valve cover 2 and the valve body 1 need to be disassembled for inspection and maintenance in the later stage, it is only necessary to lift the limit card plate 33 first, so that The movable rod 32 lifts the cylindrical inner slider 37 and compresses the spring 38, causing the limit block 34 to move out of the limit slot 35, thereby releasing the limit on the limit card plate 33. At this time, the limit card plate 33 can be rotated to make the movable rod 32 rotate with the cylindrical inner slider 37 until the end of the limit card plate 33 is rotated and moved away from the bottom edge of the valve cover 2, so that the limit card plate 33 no longer causes any obstruction and limitation to the valve cover 2. At this time, the valve cover 2 can be directly lifted to complete the rapid disassembly and assembly of the valve cover 2 and the valve body 1.

[0020] The top surface of the side seat block 31 is provided with a circular top hole communicating with the cylindrical inner slide groove 36 , and the circular top hole is adapted to the movable rod 32 to allow the movable rod 32 to pass through smoothly and rotate subsequently.

[0021] The liquid inlet 11 is arranged at the bottom of the valve body 1 , and the left liquid outlet 12 and the right liquid outlet 13 are arranged on the two side surfaces of the valve body 1 respectively.

[0022] See also Figures 1 to 4 , which is the second embodiment of the utility model, is based on the previous embodiment, and the difference is that the sealing performance of the valve cover 2 and the valve body 1 after being connected can be ensured by setting a sealing structure.

[0023] Specifically, the quick disassembly and assembly mechanism 3 also includes a sealing structure, which includes an annular rubber plug 39 and an annular slot 310. The annular rubber plug 39 is glued and fixed to the bottom surface of the valve cover 2, and the annular slot 310 is opened on the top surface of the valve body 1. The annular rubber plug 39 is inserted into the annular slot 310, so that the valve cover 2 can have good sealing after being pressed on the top surface of the valve body 1 by the limiting clamping plate 33. The inner wall of the annular rubber plug 39 is provided with a plurality of integrated side clamping blocks 311, both of which are made of rubber material and will undergo elastic deformation when squeezed. A plurality of side clamping grooves 312 corresponding to the side clamping blocks 311 are opened on the inner wall of one side of the annular slot 310, and the side clamping blocks 311 are squeezed into the side clamping grooves 312 to achieve auxiliary limiting after the annular rubber plug 39 is inserted into the annular slot 310, thereby playing an auxiliary positioning role for the valve cover 2 when the limiting clamping plate 33 is not pressed on the bottom edge of the valve cover 2.

[0024] The internal structural principles of the valve body 1 in the present invention are all technologies that have been disclosed in existing patents. For details, please refer to the existing patent with publication number CN203757063U. Its original structural principles do not involve the technical improvement part of this application, so no further details will be given here.

[0025] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic conversion valve for an industrial printer, comprising a valve body (1) and a liquid inlet (11), a left liquid outlet (12) and a right liquid outlet (13) arranged on the surface of the valve body (1), a valve cover (2) being installed on the top surface of the valve body (1), an inner rod body (41) with a hole being installed in the valve body (1), and a valve stem (4) being fixed on the top of the inner rod body (41) with a hole, and the top end of the valve stem (4) passing through the top of the valve cover (2), characterized in that: A plurality of quick-disassembly mechanisms (3) are provided between the valve cover (2) and the valve body (1); The quick disassembly and assembly mechanism (3) comprises a side seat block (31), a movable rod (32) and a limit clamping plate (33); the side seat block (31) is fixed to the outer surface of the valve body (1); the movable rod (32) is movably mounted on the top of the side seat block (31); the limit clamping plate (33) is fixed to the top end of the movable rod (32); one end of the limit clamping plate (33) extends to the bottom edge of the valve cover (2) to press the valve cover (2) to limit the position.

2. The pneumatic conversion valve for an industrial printer according to claim 1, characterized in that: The quick disassembly and assembly mechanism (3) further comprises a limit block (34) and a limit slot (35); the limit block (34) is fixed on the bottom surface of the limit plate (33); a limit slot (35) corresponding to the limit block (34) is provided at the bottom edge of the valve cover (2); and the limit block (34) is inserted into the limit slot (35).

3. The pneumatic conversion valve for an industrial printer according to claim 1, characterized in that: The side seat block (31) is provided with a cylindrical inner slide groove (36), and a cylindrical inner slider (37) and a spring (38) are provided in the cylindrical inner slide groove (36). The spring (38) is located at the top of the cylindrical inner slider (37). The bottom end of the movable rod (32) passes through the inner side of the cylindrical inner slide groove (36) and is fixedly connected to the cylindrical inner slider (37).

4. The pneumatic conversion valve for an industrial printer according to claim 3, characterized in that: The top surface of the side seat block (31) is provided with a circular top hole communicating with the cylindrical inner slide groove (36), and the circular top hole is adapted to fit the movable rod (32).

5. The pneumatic conversion valve for an industrial printer according to claim 1, characterized in that: The quick-disassembly and assembly mechanism (3) further comprises a sealing structure, wherein the sealing structure comprises an annular rubber plug (39) and an annular slot (310).

6. The pneumatic conversion valve for an industrial printer according to claim 5, characterized in that: The annular rubber plug (39) is fixed on the bottom surface of the valve cover (2), the annular slot (310) is opened on the top surface of the valve body (1), and the annular rubber plug (39) is inserted into the annular slot (310).

7. The pneumatic conversion valve for an industrial printer according to claim 6, characterized in that: The inner wall of the annular rubber plug (39) is provided with a plurality of integrated side clamping blocks (311), and the inner wall of one side of the annular slot (310) is provided with a plurality of side clamping grooves (312) corresponding to the side clamping blocks (311), and the side clamping blocks (311) are squeezed into the side clamping grooves (312).

8. The pneumatic conversion valve for an industrial printer according to claim 1, characterized in that: The liquid inlet (11) is arranged at the bottom of the valve body (1), and the left liquid outlet (12) and the right liquid outlet (13) are respectively arranged on the two side surfaces of the valve body (1).

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