A multifunctional compact lock valve with precise flow control

Abstract

The invention discloses a multi-functional compact lock valve for precise flow control, which includes a valve body, a valve stem, a temperature display gauge or a heat gauge; The hole extends to the valve body, and a temperature display gauge or heat meter is installed in the through hole, and the probe extends into the valve body; the valve body is provided with a shaft hole, and a valve stem is installed in the shaft hole, and the valve stem is located on the valve body. One end of the body is connected to the valve core, and the other end of the valve stem is equipped with a gear, and a worm meshed with the gear is provided, and the worm and the gear form a worm gear structure; a cover is provided on the valve body at the valve stem, and the cover connects the valve stem, The worm gear structure is wrapped inside, and a cover is added to the outer cover; this application adopts a worm gear structure in the valve body. Compared with the traditional valve body structure, this structural innovation can control the valve body in both directions and on both sides. The traditional one is only one-way and one-side control. This advantage is that it is very convenient for the technicians of the heating company to install it.

Description

technical field [0001] The invention relates to the field of plumbing valve bodies, in particular to a multifunctional compact locking valve for accurately controlling flow. Background technique [0002] The valve is a control component in the fluid conveying system. It has functions such as cut-off, regulation, diversion, prevention of backflow, voltage stabilization, diversion or overflow and pressure relief. Of course, the realization of the above functions needs to be implemented through different types of valves. Valves used in fluid control systems, from the simplest shut-off valve to various valves used in extremely complex automatic control systems, have a wide variety and specifications. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. Valves are also divided into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316, etc.), chrome...

AI Technical Summary

Problems solved by technology

[0006] Through investigation, it is found that many users are unwilling to reduce the flow rate to cool down even if the indoor temperature is far enough to meet the heat demand. The means they usually use are to open windows to cool down, or even turn on the air conditioner to cool down, so the significance of household heating is not too great. Therefore, the best way is to have unified allocation and management by the heating company. The unified allocation and scheduling of the heating company needs to achieve precise temperature control (for example, there are heating wells on each floor of the corridor). For example, the best indoor temperature in winter is 23-25°C; and in this way, the current flow control valve cannot meet the needs of use, as follows:

[0007] First, different households have different heating quantities, methods, and living areas in their homes, which leads to different indoor actual temperatures of each household under the same flow rate. Therefore, in order to ensure that the actual temperature of each household is the most suitable Therefore, visual adjustment is required, and the current regulating valve body cannot obtain the indoor temperature of the household after the adjustment (in the heating well in the corridor). If the adjustment flow is too large, it will not be achieved The role of reasonable distribution, if the adjustment is too small, it will cause complaints from residents, which is obviously difficult to promote the implementation; to fine-tuning

[0008] Second, the current regulation cannot achieve precise control, only general regulation can be carried out. Although general regulation can be implemented, it is still challenging to achieve fine management. For the fine distribution of heat required by heating companies Still can't meet the requirements

[0009] Third, since the master control of each household is in the heating well of the corridor, and the valve body cannot be locked, there is another loophole, that is, anyone who can open the heating well can control it, but According to management regulations, only those authorized by the heating company or the personnel of the heating company who can regulate and operate the heating equipment can carry out the implementation. Otherwise, once there is a problem with the heating equipment, the responsibility cannot be divided; valve, but each valve body needs to be equipped with a lock core (the structural gap in the lock core is relatively precise), which not only leads to an increase in the cost of a single valve body, but also generally unattended heating wells, the accumulation of dust inside There are many and the air does not circulate. After a long time, dust and moist air penetrate into the lock cylinder, causing the lock cylinder to be stuck, and then the problem of adjustment failure occurs. This is also a very difficult problem in reality. The key problem is the current The lock valve can not be locked in all states. There are only two states that can be locked. One can be locked when it is fully open, and the other can be locked when it is fully closed.

[0010] Fourth, the plumbing pipelines in the heating well are generally attached to the wall in order to save space (and when operating the valve body, it can only be operated on one side), so the installation of the valve body needs to be divided into left and right installations. Therefore, when the heating company installs and selects the valve body, it needs to choose according to the layout of the plumbing pipeline. This will bring some inconvenience to the actual installation work when it is implemented. The valve body is not easy to install. Adjustment can cause many problems

Images