Visual liquid level valve plate lifting mechanism

Abstract

The utility model provides a visual liquid level valve lifting mechanism. The visual liquid level valve lifting mechanism is provided with a valve plate, a connecting rod, a crank, a rotating shaft, a wrench and a graduated scale which are sequentially connected. The arc-shaped graduated scale is provided with a hollow arc-shaped sliding groove, the screw joint assembly is movably connected to the sliding groove, the screw head is located on the inner side of the sliding groove, and the screw rod is perpendicular to the plane where the arc-shaped graduated scale is located and penetrates through the sliding groove. And the screw rod penetrates through the hole and then is in threaded connection with the nut. The wrench can rotate for a certain angle range on the graduated scale to drive the rotating shaft to rotate for a certain angle and then drive the valve plate to ascend or descend. The lifting degree of the valve plate can be judged through the scale numbers on the arc-shaped graduated scale, and then the liquid level height in the container is judged.

Description

Technical Field

[0001] The present application relates to a liquid level control mechanism. Background Art

[0002] A regulating valve is a valve used to adjust process parameters such as medium flow, pressure, temperature, liquid level, etc. in the field of industrial automation process control. It automatically adjusts the valve opening according to the control signal in the automation system, thereby achieving the regulation of medium flow, pressure, temperature and liquid level.

[0003] Liquid level switches, also known as water level switches or liquid level sensors, are, as the name suggests, switches used to control liquid levels. They are primarily categorized into contact and non-contact types. Common non-contact switches include capacitive level switches, while contact float level switches are the most widely used. Electrode level switches, electronic level switches, and capacitive level switches can also be implemented using contact methods.

[0004] A liquid level controller is a common industrial automation instrument used to measure and control liquid levels. Its operating principle is as follows: a sensor senses the liquid level, converts it into an electrical signal, and then processes the signal through a controller, ultimately achieving precise control of the liquid level.

[0005] The invention, application publication number CN115467007A, relates to an electroplating process water washing tank with a liquid level compensation function and a method for using the same. The invention comprises a water washing tank, wherein a water washing tank body is provided within the water washing tank body, an overflow bin is horizontally disposed on one side of the water washing tank body, and an adjustment assembly is disposed on the side end of the water washing tank body. In this electroplating process water washing tank with a liquid level compensation function, a buoyancy ring moves up and down as the liquid level rises and falls, simultaneously driving a drive rod to move, causing the drive rod to pull or release the cable through a linkage process and the setting of a reel. This device has a relatively complex structure and high manufacturing costs. Summary of the Invention

[0006] Purpose of the utility model:

[0007] The invention overcomes the shortcomings of traditional liquid level valves, such as complex structure or lack of quantitative control, and provides a visual liquid level valve plate lifting mechanism with simple structure, not prone to failure, and capable of digitally indicating the liquid level.

[0008] Technical solution:

[0009] The present invention discloses a visual liquid level valve plate lifting mechanism comprising a valve plate, a connecting rod, a crank, a rotating shaft, a wrench, and an arc-shaped scale, which are sequentially connected. The end of the connecting rod is flexibly connected to a vertically mounted valve plate, the end of the crank is flexibly connected to the head end of the connecting rod, the head end of the crank is fixedly connected to the middle or end end of the rotating shaft, and the head end of the rotating shaft is threadedly connected to the end of the wrench.

[0010] The crank is perpendicular to the central axis of the rotating shaft; the wrench is perpendicular to the rotating shaft, and the upper surface of the end of the wrench has a limit screw collinear with the neutral axis of the rotating shaft and fixedly connected to the rotating shaft, or the top end of the wrench has a fastening screw perpendicular to the central axis of the rotating shaft to strengthen the connection between the two.

[0011] The connecting rod and crank can have two sets arranged in parallel (maintaining substantially parallel during movement), respectively connected to different positions of the rotating shaft and connected to both ends of the valve plate, so that the lifting and lowering of the valve plate is more stable.

[0012] The arc scale has a hollow arc-shaped slide groove, and a screw connection component (consisting of a screw head, a screw rod, and a nut, with the screw head at one end of the screw rod and the nut screwed on the screw rod) is movably connected to the slide groove, with the screw head on the inside of the slide groove, and the screw rod is perpendicular to the plane where the arc scale is located and passes through the slide groove.

[0013] The middle end of the wrench is provided with a hole, and the screw rod passes through the hole and is screwed to the nut.

[0014] The nut of the threaded assembly can be rotated and tightened to fix the position of the wrench and the scale relative to each other. The wrench can be rotated within a certain range on the scale (the scale has increasing numbers from bottom to top, indicating the change in the liquid level controlled by the valve plate from low to high), which drives the shaft to rotate a certain angle, and then drives the valve plate up or down through the crank and connecting rod.

[0015] The first end of the wrench is a free handle for manual hand-holding and rotation of the wrench.

[0016] The tail end of the wrench is provided with a screw hole, which can be screwed onto the screw head of the extended section, thereby extending the length of the wrench, further facilitating manual grip and reducing the torque of rotation.

[0017] Preferably, the sum of the length of the wrench and the extension section is 5-10 times the length of the connecting rod, so that the force required to manually turn the wrench is small and the heavier valve plate is easy to lift.

[0018] The end portion of the rotating shaft connected to the wrench is sleeved in the bearing, which can reduce the friction between the rotating shaft and the wall plate.

[0019] The valve plate can be plugged into the valve port of the electroplating (electrolysis, ionization or reaction) solution flow channel, and the liquid level of the electroplating solution is adjusted by raising and lowering the valve plate.

[0020] Beneficial effects:

[0021] The present application utilizes the lever principle so that the heavy valve plate can be raised or lowered with a relatively small force of the wrench rotation.

[0022] The degree of valve plate lifting and lowering, and thus the liquid level in the container, can be determined by the scale numbers on the arc-shaped scale.

[0023] This application adopts a purely mechanical structure, which is linked in sequence, has no electronic power facilities, does not require power consumption, and is not prone to failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a partial schematic diagram of a scale and a wrench of the present application;

[0025] Figure 2 It is a partial schematic diagram of another scale and wrench of the present application;

[0026] Figure 3 It is a three-dimensional structural schematic diagram of the present invention.

[0027] In the figure, 1 - wrench; 2 - extension; 3 - arc-shaped scale; 4 - positioning hole; 5 - arc-shaped slide; 6 - limit screw; 7 - fastening screw; 8 - movable screw; 9 - flow channel wall; 20 - valve plate; 21 - rotating shaft; 22 - connecting rod; 23 - crank. DETAILED DESCRIPTION

[0028] Example 1:

[0029] like Figure 3 The visual liquid level valve plate lifting mechanism shown has a valve plate 20, two parallel connecting rods 22, two parallel cranks 23, a rotating shaft 21, a wrench 1, and an arc-shaped scale 3 connected in sequence; the end of the connecting rod 22 is movably connected to the vertically set valve plate 20, the end of the crank 23 is movably connected to the head end of the connecting rod 22, and the head end of the crank 23 is fixedly connected to the middle end or the end of the rotating shaft 21, and the head end of the rotating shaft 21 is screwed to the end of the wrench 1.

[0030] like Figure 1 As shown, the arc-shaped scale 3 has a hollow arc-shaped slide groove 5, and the screw connection component is movably connected to the slide groove 5. The screw connection component consists of a screw head, a screw rod, and a nut. The screw head is at one end of the screw rod, and the nut is screwed on the screw rod; the screw head is on the inner side of the slide groove 5, and the screw rod is perpendicular to the plane where the arc-shaped scale 3 is located and passes through the slide groove 5; the middle end of the wrench 1 has a hole, and the screw rod passes through the hole and then is screwed to the nut.

[0031] Wrench 1 can rotate on scale 3 through a certain angle, driving shaft 21 to rotate a certain angle, which in turn drives valve plate 20 up or down through crank 23 and connecting rod 22. Scale 3 has increasing scale numbers from bottom to top, indicating the change in the liquid level controlled by valve plate 20 from low to high.

[0032] Example 2:

[0033] In the visual liquid level valve plate lifting mechanism in the first embodiment, the tail end of the wrench 1 has a screw hole that can be screwed onto the screw head of the extension section 2.

[0034] The sum of the lengths of the wrench 1 and the extension section 2 is 5-10 times the length of the connecting rod 22 .

[0035] The end portion of the rotating shaft 21 connected to the wrench 1 is sleeved in a bearing, and the bearing is pre-buried in the flow channel wall plate 9 to reduce the rotational resistance between the rotating shaft 21 and the flow channel wall plate 9.

Claims

1. A visual liquid level valve plate lifting mechanism, characterized by: It comprises a valve plate (20), a connecting rod (22), a crank (23), a rotating shaft (21), a wrench (1), and an arc-shaped scale (3) which are connected in sequence; the wrench (1) is fixedly connected to the rotating shaft (21) vertically; The arc scale (3) has a hollow arc chute (5), and the screw connection component is movably connected to the chute (5). The screw connection component consists of a screw head, a screw rod, and a nut. The screw head is at one end of the screw rod, and the nut is screwed onto the screw rod; the screw head is inside the chute (5), and the screw rod is perpendicular to the plane where the arc scale (3) is located and passes through the chute (5); the middle end of the wrench (1) has a hole, and the screw rod passes through the hole and is screwed to the nut.

2. The visual liquid level valve plate lifting mechanism according to claim 1, characterized in that: The connecting rod (22) and crank (23) have two sets arranged in parallel, respectively connecting the rotating shaft (21) and the valve plate (20).

3. The visual liquid level valve plate lifting mechanism according to claim 1, characterized in that: The wrench (1) can be rotated within a certain angle range on the scale (3), and the scale (3) has scale numbers from small to large from bottom to top.

4. The visual liquid level valve plate lifting mechanism according to claim 1, characterized in that: The tail end of the wrench (1) is provided with a screw hole, which can be screwed to the screw head of the extension section (2).

5. The visual liquid level valve plate lifting mechanism according to claim 1, characterized in that: The sum of the lengths of the wrench (1) and the extension (2) is 5-10 times the length of the connecting rod (22).

6. The visual liquid level valve plate lifting mechanism according to claim 1, characterized in that: The end portion of the rotating shaft (21) connected to the wrench (1) is sleeved in a bearing, and the bearing is pre-buried in the flow channel wall plate (9).

Images