Pneumatic valve device

Abstract

The utility model discloses a pneumatic valve device, and relates to the technical field of pneumatic valves. Comprising a valve body, a partition plate is fixedly installed at the position, close to the middle, of the inner wall of the valve body, a discharging hole is formed in the partition plate, a first rubber sealing ring is fixedly installed on the lower surface, corresponding to the discharging hole, of the partition plate, mechanical sealing pieces are arranged on the front side wall and the rear side wall of the valve body, and a transmission rod is installed between the front mechanical sealing piece and the rear mechanical sealing piece; a movable plate is fixedly mounted at the upper middle position of the transmission rod, an adjusting mechanism is arranged on the movable plate, and a sealing plate is fixedly mounted on the upper surface of the adjusting mechanism; the height of the sealing plate and the height of the second rubber sealing ring on the upper surface of the sealing plate can be adjusted, tight attachment is guaranteed, after long-time use, tight attachment can be achieved through upward adjustment, maintenance is convenient, the cleaning function on the upper surface of the second rubber sealing ring is added, tight sealing is guaranteed, meanwhile, materials in the valve body can be stirred, and the service life of the valve body is prolonged. And material blocking is effectively avoided, and use is smoother.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic valves, in particular to a pneumatic valve device. Background Art

[0002] Pneumatic valves are valves driven by compressed air. Pneumatic valves can be used to control the flow of various types of substances such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. They mainly use compressed air to drive the movement of multiple groups of combined pneumatic pistons in the actuator, transmit force to the characteristics of the crossbeam and the inner curved track, drive the hollow spindle to rotate, and transmit compressed air to each cylinder. The air disc changes the inlet and outlet positions to change the direction of spindle rotation. According to the requirements of the rotational torque required by the load, the number of cylinder combinations can be adjusted to drive the valve to work.

[0003] In the prior art, during the use of conventional pneumatic flap valve devices, the rubber sealing rings on the opposite sides of the flap and the partition are squeezed for a long time, resulting in deformation, making the sealing effect poor and inconvenient to use. At the same time, during use, the residue on the flap can easily cause a loose seal, causing material flow. At the same time, during the use of the pneumatic flap valve, there is also the problem of material blockage, which requires disassembly and cleaning, and is very inconvenient to use. Utility Model Content

[0004] The utility model provides a pneumatic valve device to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pneumatic valve device, including a valve body, a partition is fixedly installed on the inner wall of the valve body near the middle position, the partition is provided with a discharge hole, a first rubber sealing ring is fixedly installed on the lower surface of the partition corresponding to the discharge hole, mechanical seals are arranged on the front and rear side walls of the valve body, and a transmission rod is installed between the front and rear mechanical seals, a movable plate is fixedly installed at the upper middle position of the transmission rod, an adjustment mechanism is arranged on the movable plate, a sealing plate is fixedly installed on the upper surface of the adjustment mechanism, a second rubber sealing ring is fixedly installed on the upper surface of the sealing plate at a position corresponding to the first rubber sealing ring, a cleaning mechanism is fixedly installed on the lower surface of the sealing plate, a driving mechanism is arranged on the front end of the transmission rod, and the driving mechanism is fixedly installed on the valve body.

[0006] Furthermore, the adjustment mechanism includes a threaded hole, a bolt rod and a bearing. The movable plate has rectangular threaded holes at the four corners. The bolt rod is threadedly installed in the threaded hole. The upper end of the bolt rod is connected to the lower surface of the sealing plate through a bearing.

[0007] Furthermore, the upper surface of the second rubber sealing ring is an arc-shaped structure.

[0008] Furthermore, the cleaning mechanism includes a motor, a rotating shaft, a cleaning cloth strip and a stirring blade. The motor is fixedly installed on the lower surface of the sealing plate, the rotating shaft is fixedly installed on the upper surface of the motor output shaft, and the rotating shaft is arranged on the upper side of the sealing plate. A cleaning cloth strip is arranged on the rotating shaft at a position corresponding to the second rubber sealing ring, and a stirring blade is fixedly installed on the rotating shaft near the upper side.

[0009] Furthermore, a sealing cover is fixedly mounted on the lower surface of the sealing plate corresponding to the motor, and a rectangular opening is provided on the movable plate corresponding to the sealing cover.

[0010] Furthermore, the driving mechanism includes a connecting arm, a first hinge, a cylinder, a second hinge and a mounting seat, the connecting arm is fixedly mounted on the transmission rod, the left end of the connecting arm is connected to the piston rod of the cylinder through the first hinge, the left end of the cylinder is fixedly connected to the mounting seat through the second hinge, and the mounting seat is fixedly mounted on the left side of the valve body.

[0011] Compared with the prior art, the utility model provides a pneumatic valve device, which has the following beneficial effects:

[0012] 1. The pneumatic valve device drives the sealing plate to move upward by setting an adjustment mechanism, so that the sealing plate drives the second rubber sealing ring to move upward, thereby achieving the effect of adjusting the pressure between the second rubber sealing ring and the first rubber sealing ring to ensure a tight fit. After long-term use, the fit can be made tight by adjusting upward, which is convenient for maintenance.

[0013] 2. The pneumatic valve device is provided with a cleaning mechanism, which can clean the residues on the second rubber sealing ring and the upper surface of the sealing plate when the sealing plate is opened, thereby ensuring a tight seal. At the same time, it can stir the material in the valve body, effectively avoiding blockage and making the use smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 It is a schematic diagram of the cleaning mechanism structure of the utility model.

[0017] In the figure: 1. valve body; 2. partition; 3. discharge hole; 4. first rubber sealing ring; 5. mechanical sealing member; 6. transmission rod; 7. movable plate; 8. adjustment mechanism; 801. threaded hole; 802. bolt rod; 803. bearing; 9. sealing plate; 10. second rubber sealing ring; 11. cleaning mechanism; 111. motor; 112. rotating shaft; 113. cleaning cloth strip; 114. stirring blade; 12. driving mechanism; 121. connecting arm; 122. first hinge; 123. cylinder; 124. second hinge; 125. mounting seat; 13. sealing cover; 14. rectangular opening. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-Figure 3 The utility model discloses a pneumatic valve device, comprising a valve body 1, a partition 2 is fixedly installed on the inner wall of the valve body 1 near the middle position, the partition 2 is a trumpet-shaped structure, a discharge hole 3 is opened on the partition 2, a first rubber sealing ring 4 is fixedly installed on the lower surface of the partition 2 corresponding to the discharge hole 3, mechanical seals 5 are arranged on the front and rear side walls of the valve body 1, and a transmission rod 6 is installed between the front and rear mechanical seals 5, a movable plate 7 is fixedly installed at the upper middle position of the transmission rod 6, an adjustment mechanism 8 is arranged on the movable plate 7, a sealing plate 9 is fixedly installed on the upper surface of the adjustment mechanism 8, a second rubber sealing ring 10 is fixedly installed on the upper surface of the sealing plate 9 at a position corresponding to the first rubber sealing ring 4, a cleaning mechanism 11 is fixedly installed on the lower surface of the sealing plate 9, a driving mechanism 12 is arranged on the front end of the transmission rod 6, and the driving mechanism 12 is fixedly installed on the valve body 1.

[0020] Specifically, the adjustment mechanism 8 includes a threaded hole 801, a bolt rod 802 and a bearing 803. The four corners of the movable plate 7 are rectangularly provided with threaded holes 801. The bolt rod 802 is installed with threads inside the threaded hole 801. The upper end of the bolt rod 802 is connected to the lower surface of the sealing plate 9 through the bearing 803.

[0021] In this embodiment, the bolt rod 802 moves upward in the threaded hole 801 , so that the bolt rod 802 drives the sealing plate 9 to move upward through the bearing 803 .

[0022] Specifically, the upper surface of the second rubber sealing ring 10 is an arc-shaped structure.

[0023] In this embodiment, the arc-shaped upper surface of the second rubber sealing ring 10 is conducive to material flow and reduces residue.

[0024] Specifically, the cleaning mechanism 11 includes a motor 111, a rotating shaft 112, a cleaning cloth strip 113 and a stirring blade 114. The motor 111 is fixedly installed on the lower surface of the sealing plate 9, and the rotating shaft 112 is fixedly installed on the upper surface of the output shaft of the motor 111, and the rotating shaft 112 is arranged on the upper side of the upper surface of the sealing plate 9. A cleaning cloth strip 113 is arranged on the rotating shaft 112 at a position corresponding to the second rubber sealing ring 10, and a stirring blade 114 is fixedly installed on the rotating shaft 112 near the upper side.

[0025] In the present embodiment, the output shaft of the motor 111 drives the rotating shaft 112 to rotate, and the rotating shaft 112 drives the cleaning cloth strip 113 to rotate. When the cleaning cloth strip 113 rotates, it is affected by the force and the cleaning cloth strip 113 straightens to clean the residual material on the second rubber sealing ring 10. At the same time, the rotating shaft 112 drives the stirring blade 114 to rotate, so that the stirring blade 114 breaks and drives the material in the valve body 1, thereby avoiding the material from being blocked in the valve body 1, which is convenient for use.

[0026] Specifically, a sealing cover 13 is fixedly mounted on the lower surface of the sealing plate 9 corresponding to the motor 111 , and a rectangular opening 14 is opened on the movable plate 7 corresponding to the sealing cover 13 .

[0027] In this embodiment, the sealing cover 13 seals the motor 111, so that the motor 111 is not easily damaged by water or dust.

[0028] Specifically, the driving mechanism 12 includes a connecting arm 121, a first hinge 122, a cylinder 123, a second hinge 124 and a mounting seat 125. The connecting arm 121 is fixedly mounted on the transmission rod 6. The left end of the connecting arm 121 is connected to the piston rod of the cylinder 123 through the first hinge 122. The left end of the cylinder 123 is fixedly connected to the mounting seat 125 through the second hinge 124. The mounting seat 125 is fixedly mounted on the left side surface of the valve body 1.

[0029] In this embodiment, the piston rod of the cylinder 123 drives the lower end of the connecting arm 121 to move left and right through the first hinge 122, so that the upper end of the connecting arm 121 drives the transmission rod 6 to rotate in the mechanical seal 5.

[0030] When in use, the piston rod of the cylinder 123 in the driving mechanism 12 is reset, so that the piston rod of the cylinder 123 drives the lower end of the connecting arm 121 to move to the left through the first hinge 122, so that the upper end of the connecting arm 121 drives the transmission rod 6 to rotate clockwise in the mechanical seal 5, and the transmission rod 6 drives the movable plate 7 to rotate, and the movable plate 7 drives the sealing plate 9 to rotate through the adjusting mechanism 8, so that the second rubber sealing ring 10 on the upper surface of the sealing plate 9 is tightly fitted with the first rubber sealing ring 4 to achieve a sealing effect. Conversely, the piston rod of the cylinder 123 drives the lower end of the connecting arm 121 to move to the right through the first hinge 122, so that the upper end of the connecting arm 121 drives the transmission rod 6 to rotate counterclockwise in the mechanical seal 5, and the transmission rod 6 drives the movable plate 7 to rotate, and the movable plate 7 drives the sealing plate 9 to rotate through the adjusting mechanism 8. The cleaning mechanism 11 is actuated by the motor 111 to separate the materials from the valve body 1 and realize the flow of the materials. The output shaft of the motor 111 in the cleaning mechanism 11 drives the rotating shaft 112 to rotate, and the rotating shaft 112 drives the cleaning cloth strip 113 to rotate. When the cleaning cloth strip 113 rotates, it is affected by the force and the cleaning cloth strip 113 straightens to clean the materials remaining on the second rubber sealing ring 10. At the same time, the rotating shaft 112 drives the stirring blade 114 to rotate, so that the stirring blade 114 breaks and drives the materials in the valve body 1 to avoid the materials from being blocked in the valve body 1, which is convenient for use. At the same time, after long-term use, the first rubber sealing ring 4 and the second rubber sealing ring 10 are not tightly pressed together. At this time, the bolt rod 802 in the adjusting mechanism 8 moves upward in the threaded hole 801, so that the bolt rod 802 drives the sealing plate 9 to move upward through the bearing 803, and the sealing plate 9 drives the second rubber sealing ring 10 to move upward, so that the first rubber sealing ring 4 and the second rubber sealing ring 10 are tightly pressed together.

[0031] To sum up, the pneumatic valve device can adjust the height of the sealing plate 9 and the second rubber sealing ring 10 on its upper surface to ensure a tight fit, and after long-term use, it can be adjusted upward to make the fit tight, which is convenient for maintenance, and increases the cleaning function of the second rubber sealing ring 10 and the upper surface of the sealing plate 9 to ensure a tight seal. At the same time, it can stir the material in the valve body 1 to effectively avoid blockage and make it smoother to use.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic valve device, comprising a valve body (1), characterized in that: A partition (2) is fixedly mounted near the middle of the inner wall of the valve body (1), a discharge hole (3) is formed on the partition (2), and a first rubber sealing ring (4) is fixedly mounted on the lower surface of the partition (2) corresponding to the discharge hole (3). Mechanical sealing members (5) are arranged on the front and rear side walls of the valve body (1), and a transmission rod (6) is installed between the front and rear mechanical sealing members (5). A movable plate (7) is fixedly mounted at the upper middle position of the transmission rod (6), an adjustment mechanism (8) is arranged on the movable plate (7), a sealing plate (9) is fixedly mounted on the upper surface of the adjustment mechanism (8), a second rubber sealing ring (10) is fixedly mounted on the upper surface of the sealing plate (9) at a position corresponding to the first rubber sealing ring (4), a cleaning mechanism (11) is fixedly mounted on the lower surface of the sealing plate (9), and a driving mechanism (12) is arranged on the front end of the transmission rod (6), and the driving mechanism (12) is fixedly mounted on the valve body (1).

2. A pneumatic valve device according to claim 1, characterized in that: The adjusting mechanism (8) comprises a threaded hole (801), a bolt rod (802) and a bearing (803); the threaded holes (801) are provided at four rectangular corners on the movable plate (7); the bolt rod (802) is installed with internal threads in the threaded hole (801); the upper end of the bolt rod (802) is connected to the lower surface of the sealing plate (9) via the bearing (803).

3. A pneumatic valve device according to claim 1, characterized in that: The upper surface of the second rubber sealing ring (10) is an arc-shaped structure.

4. A pneumatic valve device according to claim 1, characterized in that: The cleaning mechanism (11) comprises a motor (111), a rotating shaft (112), a cleaning cloth strip (113) and a stirring blade (114); the motor (111) is fixedly mounted on the lower surface of the sealing plate (9); the rotating shaft (112) is fixedly mounted on the upper surface of the output shaft of the motor (111), and the rotating shaft (112) is arranged on the upper side of the upper surface of the sealing plate (9); a cleaning cloth strip (113) is arranged on the rotating shaft (112) at a position corresponding to the second rubber sealing ring (10); and a stirring blade (114) is fixedly mounted on the rotating shaft (112) near the upper side.

5. A pneumatic valve device according to claim 4, characterized in that: A sealing cover (13) is fixedly mounted on the lower surface of the sealing plate (9) corresponding to the motor (111), and a rectangular opening (14) is provided on the movable plate (7) corresponding to the sealing cover (13).

6. A pneumatic valve device according to claim 1, characterized in that: The driving mechanism (12) comprises a connecting arm (121), a first hinge (122), a cylinder (123), a second hinge (124) and a mounting seat (125); the connecting arm (121) is fixedly mounted on the transmission rod (6); the left end of the connecting arm (121) is connected to the piston rod of the cylinder (123) via the first hinge (122); the left end of the cylinder (123) is fixedly connected to the mounting seat (125) via the second hinge (124); and the mounting seat (125) is fixedly mounted on the left side surface of the valve body (1).

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