Inhaul cable type opening and closing liquid level measuring head device

Abstract

The invention belongs to the technical field of liquid level measurement and ship engineering, and particularly relates to an inhaul cable type liquid level measuring head opening and closing device. The device comprises a valve body provided with a rotatable valve element; the transmission assembly comprises a driving wheel, a driven wheel, a gear shaft and a transmission wheel, one side face of the driving wheel is fixedly connected with the transmission wheel, the axis of the driving wheel and the axis of the transmission wheel are rotationally installed on the valve body by being sleeved with the gear shaft, and the driving wheel and the transmission wheel can rotate around the gear shaft; the driving wheel is meshed with the driven wheel, and one end of the valve element is fixed to the axis of the driven wheel. And the driving part is connected with the transmission wheel and is used for driving the transmission wheel to rotate. When the device is used, only the inhaul cable type chain needs to be slightly pulled down and fixed, the device is safe, stable, high in practicability and easy to operate, and the measurement work of the cabin liquid level can be safely completed by a single person.

Description

Technical Field

[0001] The invention belongs to the technical field of liquid level measurement and ship engineering, and in particular relates to a cable-type opening and closing liquid level measuring head device. Background Art

[0002] In the ship's measurement system, the self-closing valve is a key component used in ship piping systems for liquids with a flash point of not less than 60°C. The existing standard "GB / T 3778-2019 Sounding Self-closing Valve" relies on the swing of a weight to control the opening and closing of the valve core. Although this design is simple, it has several significant disadvantages.

[0003] First, the existing depth-sensing self-closing valve requires a large space to accommodate the swing stroke of the weight. In the limited cabin of the ship, this requirement limits the flexibility of the design and layout of the measuring pipe. Since the space on the ship is precious, the design of such a large swing arm not only takes up too much space, but may also interfere with other equipment or operations.

[0004] Secondly, the valve’s opening mechanism requires the weight to be above the valve body when it is opened. Therefore, during operation, the high position of the weight not only increases the difficulty of operation, but also poses a safety hazard. For example, in the complex offshore environment, if the weight accidentally slips, it may cause injury to the operator.

[0005] In addition, although the valve is designed with a tripod structure with a rope for the operator to step on to assist in opening, this design is too complicated and cumbersome to operate, so it is rarely used in practice. In actual operation, it usually requires two people to cooperate in operation, or a single person needs to use his body to support the weight to prevent it from sliding, which is obviously not conducive to improving work efficiency and reducing labor intensity.

[0006] Therefore, the existing technology has the problems of large space occupation, high operational safety risk and low operational efficiency, and there is an urgent need for a new depth sounding self-closing valve design to solve the above problems. Summary of the invention

[0007] 1. Technical issues to be resolved

[0008] The present invention mainly aims at the above problems and proposes a cable-type opening and closing liquid level measuring head device, the purpose of which is to solve the problems of large operating space, cumbersome operation and potential safety hazards of traditional depth sounding self-closing valves, so as to simplify operation, improve safety and optimize the utilization of internal space of the ship.

[0009] (II) Technical solution

[0010] To achieve the above-mentioned object, the first aspect of the present invention provides a cable-type opening and closing liquid level measuring head device, the device comprising:

[0011] A valve body, wherein a rotatable valve core is provided on the valve body;

[0012] A transmission assembly, the transmission assembly includes a driving wheel, a driven wheel, a gear shaft, and a transmission wheel, one side of the driving wheel is fixedly connected to the transmission wheel, the driving wheel and the axis of the transmission wheel are rotatably mounted on the valve body by sleeved with a gear shaft, and the driving wheel and the transmission wheel can rotate around the gear shaft; the driving wheel is meshed with the driven wheel, and one end of the valve core is fixed on the axis of the driven wheel;

[0013] A driving member is connected to the transmission wheel and is used to drive the transmission wheel to rotate.

[0014] Furthermore, the transmission component also includes a box body, and the driving wheel, the driven wheel, the gear shaft, and the transmission wheel are all arranged in the box body.

[0015] Furthermore, the transmission wheel is a sprocket, the driving member is a chain, the chain is wound around the sprocket, both ends of the chain extend out of the box body, and the extended ends are respectively provided with hanging rings.

[0016] Furthermore, the device also includes a hanging piece, on which a hook is arranged, and both ends of the chain are respectively provided with hanging rings adapted to the hook, and the hanging piece is located at the lower end of the box body.

[0017] Furthermore, the driving member is a motor.

[0018] Furthermore, the driving member is two pull ropes, one of the pull ropes is fixed on one side of the transmission wheel, and the other pull rope is fixed on the other side of the transmission wheel, and the two pull ropes are symmetrically arranged along the axis of the transmission wheel.

[0019] Furthermore, the radius of the driving wheel is greater than the radius of the driven wheel.

[0020] Furthermore, a valve nameplate is attached to the box body.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the cable-type opening and closing liquid level measuring head device provided by the present invention effectively solves multiple problems encountered by traditional depth-measuring self-closing valves during use by adopting the design of transmission components and driving parts. The transmission component includes a driving wheel, a driven wheel, a gear shaft and a transmission wheel. The coordinated work of these components allows the valve core to rotate through a simple driving part operation, thereby realizing the rapid opening and closing of the valve. This design eliminates the weight swing mechanism required by traditional valves, greatly reduces the physical space required for operation, simplifies the operation process, and reduces the safety risks during operation. By converting complex physical swings into simple axle drives, the present invention makes operation easier and safer, while also optimizing the space configuration inside the ship, improving the practicality of the equipment and the overall safety of the ship. This improvement not only improves the efficiency of operation, but also reduces the labor intensity of the operator, achieving the goal of safe operation by a single person. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the main structure of a cable-type opening and closing liquid level measuring head device.

[0024] Figure 2 This is a schematic diagram of the half-section structure of a cable-type opening and closing liquid level measuring head device disclosed in this application.

[0025] Figure 3 This is a schematic diagram of the structure of a driving member and a hanging member hooked connection disclosed in this application.

[0026] Reference numerals shown in the figures:

[0027] 1. Valve body; 10. Valve core;

[0028] 2. Transmission assembly; 20. Driving wheel; 21. Driven wheel; 22. Gear shaft; 23. Transmission wheel; 24. Box body;

[0029] 3. Driving member; 30. Lifting ring;

[0030] 4. Pendant; 40. Hook. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0034] See also Figure 1-Figure 3 The figure is a schematic diagram of a cable-type opening and closing liquid level measuring head device provided in a preferred embodiment of the present application. Figure 1-Figure 3 In the embodiment shown, the device includes: a valve body 1, a transmission assembly 2 and a driving member 3; a rotatable valve core 10 is arranged inside the valve body 1. The transmission assembly 2 includes a driving wheel 20, a driven wheel 21, a transmission wheel 23 and a gear shaft 22, wherein the driving wheel 20 and the driven wheel 21 are both circular gears made of corrosion-resistant high-strength alloy steel, and a transmission wheel 23 is fixedly connected to one side of the driving wheel 20, and the driving wheel 20 and the transmission wheel 23 are coaxially arranged, and the axis is rotatably mounted on the valve body 1 by sleeved with the same gear shaft 22. The driven wheel 21 is meshed with the driving wheel 20, and its axis is directly connected to the valve core 10 to ensure that the valve core 10 rotates synchronously with the driven wheel 21. The driving member 3 is connected to the transmission wheel 23, and is used to drive the transmission wheel 23 to rotate.

[0035] During operation, the driving member 3 provides power to rotate the transmission wheel 23. The rotation of the transmission wheel 23 is transmitted to the driven wheel 21 through the driving wheel 20. The rotation of the driven wheel 21 drives the valve core 10 fixed on its axis to rotate, thereby opening or closing the valve. During the entire transmission process, smooth and precise control is achieved through precise gear meshing.

[0036] The above contents will be explained with three embodiments below.

[0037] Example 1

[0038] In this embodiment, the cable-type opening and closing liquid level measuring head device includes a valve body 1 and a box body 24, in which a transmission assembly 2 and a part of a driving member 3 are installed. The transmission assembly 2 includes a driving wheel 20, a driven wheel 21, a gear shaft 22, and a sprocket wheel as a transmission wheel 23. These components are all arranged inside the box body 24. The driving member 3 is a chain, which is wound around the sprocket wheel, and the two ends of the chain extend from both sides of the bottom of the box body 24. The two ends of the chain extending from the bottom are provided with hanging rings 30. Figure 3 As shown, the device also includes a hanging part 4, which is provided with a hook 40 for cooperating with the lifting ring 30 at the end of the chain. During operation, when the left chain is pulled down so that its lifting ring 30 is just stuck on the hook 40, the valve core 10 in the device is in a closed state. When the left chain is loosened and the right chain is pulled down at the same time, the sprocket rotates to drive the coaxial driving wheel 20 to rotate, and the driving wheel 20 then drives the coupled driven wheel 21 to rotate. The driven wheel 21 is coaxial with the valve core 10, thereby completing the opening of the valve core 10. At this time, the lifting ring 30 of the right chain is just stuck on the lifting ring hook 40, thereby realizing the safe opening of the device.

[0039] Example 2

[0040] In this embodiment, the cable-type opening and closing liquid level measuring head device uses a motor as a driving member 3 to achieve automatic control. The motor is connected to the gear shaft 22 in the transmission assembly to drive the transmission wheel 23 (sprocket) to rotate. The rotation of the transmission wheel 23 is transmitted to the driven wheel 21 through the driving wheel 20, and the rotation of the driven wheel 21 drives the valve core 10 fixed on its axis to rotate. This configuration allows the remote automatic opening and closing of the valve through the electrical control system, which is suitable for ship liquid level control systems that require a high degree of automation.

[0041] Example 3

[0042] The cable-type opening and closing liquid level measuring head device in this embodiment uses two pull ropes as driving members 3, which are respectively fixed on both sides of the transmission wheel 23 (sprocket) and symmetrically arranged along the axis of the transmission wheel 23. During operation, the ship staff can control the rotation of the transmission wheel 23 by simply pulling a pull rope, thereby transmitting power through the meshing of the driving wheel 20 and the driven wheel 21, driving the valve core 10 to rotate, and realizing the opening of the valve. Pulling the other pull rope can realize the closing of the valve. This double pull rope design provides a simple and intuitive manual control method, which increases the flexibility and convenience of operation.

[0043] The above three embodiments demonstrate different driving and control mechanisms to meet the diversity of different working environments and operating requirements. Each implementation method can effectively improve the practicality of the device and the safety of operation.

[0044] In the present invention, the radius of the driving wheel 20 is designed to be larger than the radius of the driven wheel 21. This configuration allows the driving wheel 20 to generate a larger torque and speed change when rotating, thereby effectively controlling the rotation speed and torque of the driven wheel 21 and achieving precise valve core operation. In addition, in order to simplify the equipment structure and reduce maintenance requirements, no rebound mechanism is provided in the device. Instead, the opening and closing stroke of the valve core 10 is calculated only based on the ratio of the diameter of the sprocket to the diameter of the valve core. This design method not only simplifies the mechanical structure, but also improves the reliability of the equipment and the accuracy of operation, so that the opening and closing stroke of the valve core 10 can be accurately calculated and adjusted according to the specific diameter ratio to meet the needs of different working conditions.

[0045] In the old design of "GB / T 3778-2019 Sounding Self-closing Valve", the structure of the valve body 1 is not conducive to directly posting the valve nameplate on it. It is usually necessary to install the nameplate by welding a nameplate seat under the sounding pipeline. This method increases the complexity of installation and may affect the overall appearance and maintenance of the pipeline. In contrast, the cable-type opening and closing liquid level measuring head device in the present invention is designed with an optimized box body 24 structure, which has a smooth surface and is convenient for directly attaching the valve nameplate. This design simplifies the installation process of the nameplate, avoids the need for additional welding or mechanical fixing, improves the convenience of overall installation and the neatness of the appearance of the device, while ensuring the stability and readability of the nameplate.

[0046] Therefore, no matter from which point of view, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present application is limited by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application. Any figure mark in the claims should not be regarded as limiting the claims involved. In addition, it is obvious that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Multiple units or devices stated in the device claim can also be implemented by the same unit or device through software or hardware. The words first, second, etc. are used to indicate names, and do not indicate any particular order.

[0047] The above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person skilled in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A cable-type opening and closing liquid level measuring head device, It is characterized in that The device comprises: A valve body, wherein a rotatable valve core is provided on the valve body; A transmission assembly, the transmission assembly comprises a driving wheel, a driven wheel, a gear shaft, and a transmission wheel, one side of the driving wheel is fixedly connected to the transmission wheel, the driving wheel and the axis of the transmission wheel are rotatably mounted on the valve body by sleeved with the gear shaft, and the driving wheel and the transmission wheel can rotate around the gear shaft; the driving wheel is meshed with the driven wheel, and one end of the valve core is fixed on the axis of the driven wheel; A driving member is connected to the transmission wheel and is used to drive the transmission wheel to rotate.

2. A cable-type opening and closing liquid level measuring head device according to claim 1, It is characterized in that The transmission component also includes a box body, and the driving wheel, the driven wheel, the gear shaft and the transmission wheel are all arranged in the box body.

3. A cable-type opening and closing liquid level measuring head device according to claim 2, It is characterized in that The transmission wheel is a sprocket wheel, the driving member is a chain, the chain is wound around the sprocket wheel, both ends of the chain extend out of the box body, and the extended ends are respectively provided with hanging rings.

4. A cable-type opening and closing liquid level measuring head device according to claim 3, It is characterized in that The device also includes a hanging piece, on which a hook is arranged, and both ends of the chain are respectively provided with hanging rings adapted to the hook, and the hanging piece is located at the lower end of the box body.

5. A cable-type opening and closing liquid level measuring head device according to claim 1, It is characterized in that The driving member is a motor.

6. A cable-type opening and closing liquid level measuring head device according to claim 1, It is characterized in that The driving member is two pull ropes, one of which is fixed on one side of the transmission wheel, and the other is fixed on the other side of the transmission wheel, and the two pull ropes are symmetrically arranged along the axis of the transmission wheel.

7. A cable-type opening and closing liquid level measuring head device according to claim 1, It is characterized in that The radius of the driving wheel is greater than the radius of the driven wheel.

8. A cable-type opening and closing liquid level measuring head device according to claim 2, It is characterized in that The box body is provided with a valve component nameplate.

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