Milk homogenizer material pipe control valve anti-misoperation device

Abstract

The utility model provides a kind of milk homogenizer's material pipe control valve anti-misoperation device, it is related to food processing equipment technical field, including with the detachable installation of material pipe installation piece, installation piece is equipped with the locking piece that can slide up and down;Locking piece is limited by position spring, the stopper of locking piece physically blocks the operating lever of control valve in normality;When operating, locking piece is pressed first to overcome spring elasticity, so that stopper can be rotated operating lever after disengaging blocking position, form mechanical locking;Device is set on base for detecting the displacement sensor linkage audible and visual sensor of locking piece displacement, realize the operation early warning before valve actual rotation.The utility model structure is simple, can effectively prevent misoperation, improve production safety.

Description

Technical Field

[0001] This utility model relates to the field of food processing technology, specifically to a device for preventing misoperation of the material pipe control valve of a milk homogenizer. Background Technology

[0002] In the production process of dairy products such as milk and yogurt, the homogenizer is a key piece of equipment. The pipelines for material entering and exiting the homogenizer are typically controlled by manual butterfly valves or ball valves. The opening and closing status of these valves must strictly adhere to operating procedures when switching between different processes such as production, shutdown, and CIP (clean-in-place) operation. However, in actual production, due to factors such as operator fatigue, negligence, or complex processes, there are instances where operators mistakenly operate the manual valves. For example, the material feed valve may be accidentally opened during CIP cleaning, or the feed valve may be left open when the homogenizer is started, causing the equipment to run dry and empty.

[0003] Although there are already electrically controlled valve solutions managed by a central PLC system, the cost of retrofitting the large number of existing equipment already in operation is extremely high. Not only are the valves themselves expensive, but a large number of control cables and air pipes also need to be laid, and the main PLC system needs hardware expansion and complex program reconstruction. Large-scale pipeline and circuit modifications require long-term production line shutdowns, resulting in huge economic losses. On the other hand, at certain critical process nodes, the process specifications actually require operators to manually operate and visually confirm on-site, serving as a safety barrier independent of the automation system to prevent program errors or misoperation in the central control room.

[0004] Therefore, the market urgently needs a material pipe control valve anti-misoperation device that can provide a low-cost, high-reliability, and safe upgrade to existing manual valves while retaining the advantages of manual operation. Utility Model Content

[0005] To overcome the problems in the background technology, this utility model provides a device to prevent misoperation of the material pipe control valve of a milk homogenizer, which solves the problem that existing manual valves are prone to product quality risks or equipment damage due to human error in key processes.

[0006] A device for preventing misoperation of the material pipe control valve of a milk homogenizer includes a mounting component, a base plate, a limiting side plate, a locking component, and a limiting spring. The mounting component is detachably installed on the outer wall of the material pipe C corresponding to the operating rod B of the control valve A. The base plate is fixed to the mounting component. The limiting side plate is installed perpendicular to one end of the base plate. The locking component is C-shaped, with its side wall slidably installed with the limiting side plate. The bottom wall of the locking component is connected to the base plate via the limiting spring. One end of the bottom wall of the locking component is provided with an upwardly protruding operating rod B limiting block, and the front end of the locking component is a pressure plate. Furthermore, a limiting slider is provided on the side wall of the locking member and a limiting groove is provided on the limiting side plate for sliding installation.

[0007] Furthermore, the mounting component is a clamp.

[0008] Furthermore, an audible and visual alarm with a controller is installed on the limiting side plate, and a displacement sensor is installed on the bottom plate corresponding to the bottom wall of the locking member. The displacement sensor is connected to the controller of the audible and visual alarm.

[0009] Compared with the prior art, the beneficial effects of this utility model are: 1. The structure of the limit block and spring forms a two-step operation mechanism of "press first, then rotate". This effectively prevents valve malfunction caused by accidental contact or clothing scratches, and forces the operator to have a clear intention to open or close the valve, thus achieving the first layer of mechanical protection; 2. It integrates a proximity sensor and an audible and visual alarm, which can detect the status and trigger an audible and visual alarm when the operator intends to operate the valve.

[0010] 3. This device has a simple structure and can be installed on existing manual valves and pipelines without damage by means of clamps, etc. No welding, drilling or other modifications are required to the original valves and pipelines, avoiding large-scale production stoppages. It is especially suitable for low-cost, high-efficiency and safe upgrades of a large number of existing equipment. Attached Figure Description

[0011] To clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments are explained.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram from one perspective of the present invention; Figure 3 This is a structural schematic diagram from a second perspective of the present invention; Figure 4 This is a schematic diagram of the utility model installed on a material pipe in use.

[0013] The markings in the diagram are: 1-installation component, 2-base plate, 3-limiting side plate, 4-locking component, 41-limiting block, 42-pressure plate, 5-limiting spring, 6-audible and visual alarm, 7-displacement sensor, A-control valve, B-operating lever, C-material pipe. Detailed Implementation

[0014] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0015] See Figure 1-3This utility model proposes a device to prevent misoperation of the material pipe control valve of a milk homogenizer, including a mounting part 1 for fixing to the material pipe C. In this embodiment, the mounting part 1 is preferably a clamp structure, which can be easily and without damage fixed to material pipes C of different diameters by bolt locking. A base plate 2 is fixedly connected to the mounting part 1, and a limiting side plate 3 is installed vertically upward on one end of the base plate 2. The locking part 4 is the moving part of this device, and its whole body is C-shaped. The side wall of the locking part 4 slides with the limiting side plate 3 to ensure the stability and accuracy of the sliding process. The bottom wall of the locking part 4 is connected to the base plate 2 by a limiting spring 5. In the natural state, the limiting spring 5 pushes the locking part 4 upward to the highest position to the operating rod B. The bottom wall of the locking part 4 near the control valve A protrudes upward to form a limiting block 41 to limit the rotation of the operating rod B. The front end of the locking part 4 forms a pressure plate 42 that is easy to press by hand.

[0016] Preferably, a limiting slider is provided on the side wall of the locking member 4, and a limiting groove is correspondingly opened on the limiting side plate 3. The slider slides in the groove to prevent the locking member 4 from moving left and right.

[0017] Preferably, an audible and visual alarm 6 can be installed on the limiting side plate 3, and the audible and visual alarm 6 has a built-in or external controller; a displacement sensor 7, such as a proximity switch, is installed on the base plate 2, directly opposite the bottom wall of the locking member 4. The purpose of this position is twofold: first, to detect the action of the locking member 4 being pressed down, which is a prerequisite for valve unlocking, thus providing an early warning before the valve operating rod B actually rotates, giving the operator valuable reaction time to stop erroneous operations; second, the displacement sensor 7 is installed between the base plate 2 and the locking member 4, which is equivalent to being encased by the structure of the device itself, protecting it from accidental collisions and mis-touches. At the same time, the surrounding metal side plate 3, base plate 2, and other components also form a certain degree of electromagnetic shielding, thereby ensuring the accuracy of detection and the reliability of the system.

[0018] Work process: like Figure 4 As shown, when the device is installed in place, in its natural state, the limit spring 5 will lift the locking part 4. At this time, the height of the limit block 41 is on the rotation plane of the operating rod B of the control valve A, which physically blocks the rotation path of the operating rod B. Therefore, any unintentional touch or scraping will not make the operating rod B rotate. When an operator needs to legally operate the valve, they must first press down on the pressure plate 42 at the front end of the locking member 4 to overcome the elastic force of the limit spring 5, causing the entire locking member 4 to slide downward along the limit side plate 3. When the locking member 4 is pressed to its lowest position, the limit block 41 on it also descends below the rotation plane of the operating rod B, no longer forming an obstruction. At this time, the operator's other hand or the same hand can smoothly rotate the operating rod B to open or close the valve. After the operation is completed, the operator releases the pressure plate 42, the limit spring 5 automatically resets the locking member 4, and the limit block 41 locks the operating rod B again. This mandatory two-step operation of "pressing first and then rotating" greatly improves the safety of operation. For the audible and visual alarm 6, when the locking member 4 is in the initial locked position pushed up by the spring, the proximity switch 7 outputs the first status signal "locked"; when the locking member 4 is pressed by the operator, the displacement sensor 7 senses this change, outputs the second status signal "ready to unlock", and issues an audible and visual warning, forming a second layer of warning protection.

[0019] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for preventing misoperation of the material pipe control valve of a milk homogenizer, characterized in that, The device includes an installation component (1), a base plate (2), a limiting side plate (3), a locking component (4), and a limiting spring (5). The installation component (1) is detachably installed on the outer wall of the material pipe (C) corresponding to the operating rod (B) of the control valve (A). The base plate (2) is fixed on the installation component (1). The limiting side plate (3) is installed perpendicular to the base plate (2) at one end. The locking component (4) is C-shaped. The side wall of the locking component (4) is slidably installed with the limiting side plate (3). The bottom wall of the locking component (4) is connected to the base plate (2) through the limiting spring (5). One end of the bottom wall of the locking component (4) is provided with an upwardly protruding operating rod (B) limiting block (41). The front end of the locking component (4) is a pressure plate (42).

2. The anti-misoperation device for the material pipe control valve of the milk homogenizer according to claim 1, characterized in that, The locking component (4) is provided with a limiting slider on its side wall and a limiting groove on its limiting side plate (3) for sliding installation.

3. The anti-misoperation device for the material pipe control valve of the milk homogenizer according to claim 1, characterized in that, The mounting component (1) is a clamp.

4. The anti-misoperation device for the material pipe control valve of the milk homogenizer according to claim 1, characterized in that, A sound and light alarm (6) with a controller is installed on the limiting side plate (3), and a displacement sensor (7) is installed on the bottom plate (2) corresponding to the bottom wall of the locking part (4). The displacement sensor (7) is connected to the controller of the sound and light alarm (6).

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