Controllable valve rod type valve for heat supply system

Abstract

The invention belongs to hot equipment for heat supply in the building industry, and particularly relates to a controllable valve rod type valve for a heat supply system. The lock body is fixedly arranged in a pipe opening in the right side of the valve body, a lock cylinder is arranged in the lock body and located on the outer side of the valve rod, a lock body chip, a lock body contact and a clutch mechanism are arranged in the lock cylinder, the clutch mechanism is in linkage connection with two limiting columns, two pairs of limiting column grooves are formed in the positions, corresponding to the two limiting columns, of the valve rod, and a battery and a controller are further arranged in the unlocking body. Wherein the controller comprises a communication unit, a Bluetooth device, a storage unit, a control chip, an identification unit and a buzzer, and the controller communicates with the lock body chip. The chip is additionally arranged in the lock body, the clutch mechanism is controlled through a chip program of the lock body, so that opening and closing of the valve rod are controlled, control over fluid by the ball core can be systematically controlled, a heat supply valve cannot be easily and mechanically opened, the control efficiency of a heating system is improved, and loss of a heat source is reduced.

Description

Technical Field

[0001] The invention belongs to heat standby for heating in the building industry, and in particular relates to a controllable valve stem type valve for a heating system. Background Art

[0002] During the heating season in northern my country, heating companies use a "one-household-one-valve" control method for heating users. In 2018, our company applied for a patent named "Laser Anti-theft Locking Valve for Heating System" with a patent number of "2018210519526". This product has been widely used in heating systems. The effective control of heating valves has greatly reduced the heat source loss of heating companies. However, the structural features of this product have been made public, and they are not complicated and can be easily cracked. In addition, internal staff with unlocking authority can open the locking valve at will, and there is no trace to be found, which brings trouble to the management in this regard. As time goes by, the heat source loss of the heating company has shown signs of increasing again. Summary of the invention

[0003] The object of the present invention is to overcome the above-mentioned technical deficiencies and to provide a controllable valve stem valve for a heating system which has a simple structure and is more effective in controlling the heating valve.

[0004] The controllable valve stem type valve for the heating system has a ball package body at the central position inside the valve body, a ball core is provided in the inner cavity of the ball package body, a valve stem hole is provided at the central position of the right end face of the ball core, and the valve stem is installed in the valve stem hole. Its characteristics are that it is also provided with a lock body, which is fixed in the pipe opening on the right side of the valve body, the valve stem is installed in the lock body, the valve stem and the lock body are concentric, the right end face of the valve stem is flush with the right end face of the lock body, and a valve stem keyhole is provided on the right end face of the valve stem, and the valve stem key is inserted into the valve stem keyhole; a lock core is provided in the lock body, the lock core is located on the outside of the valve stem, and a lock body chip, a lock body contact, and a clutch mechanism are provided in the lock core, and two lock body contacts are on the right end face of the lock body, and the two lock body contacts are connected to the lock body chip, and the lock body chip is connected to the clutch mechanism, and the clutch mechanism is program-controlled, and the clutch mechanism is linked to connect two limit posts. Two pairs of limit column grooves are provided on the valve stem at positions corresponding to the two limit columns, and the angle between the two pairs of limit column grooves is 90 degrees. A lock body contact matching and connected to the lock body contact is provided on the left end face of the unlocking body. A battery and a controller are also provided in the unlocking body, wherein the controller includes a communication unit, a Bluetooth device, a storage unit, a control chip, an identification unit and a buzzer. The battery supplies power to the lock body contacts and the controller. The control chip in the controller is connected to the communication unit, the Bluetooth device, the storage unit, the identification unit and the buzzer and performs program control on them. The controller communicates with the lock body chip. A valve stem baffle is provided on the outer wall on the left side of the valve stem, and the valve stem baffle is located on the right side of the valve stem hole. Two valve body limit baffles are provided on the inner wall of the valve body tube at positions corresponding to the valve stem baffle, and the angle between the extension lines of the two valve body limit baffles to the center of the circle is 90 degrees. The valve stem baffle is located within the 90-degree interval of the two valve body limit baffles.

[0005] The beneficial effects of the present invention are as follows: the controllable valve stem type valve for the heating system has a compact structure and is easy to operate. A chip is added to the lock body, and the clutch mechanism is controlled by the lock body chip program, thereby controlling the switch of the valve stem, so that the control of the ball core on the fluid can be systematically controlled, so that the heating valve will not be easily opened mechanically. A controller is provided in the unlocking body. Through the use of radio frequency technology, only the authorized unlocking body can successfully match the lock body within its authority to open the heating valve. The management department of the heating company can control the jurisdiction of the unlocking body, the authority usage time and the specific operator through software programs and system platforms in the background. Even if the unlocking body is lost, the unlocking body that has lost its authority no longer has the function of opening the heating valve. The interactive communication between the chip of the lock body and the controller of the unlocking body enables all the switch information of the lock body to be transmitted back to the management platform. In this way, the working status and authority usage of the internal employees of the heating company are standardized, and the correct heating status of each heating user is monitored, thereby realizing closed-loop management, effectively improving the control efficiency of the heating system, and reducing the loss of heat sources. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The following is a detailed description of the embodiments with reference to the accompanying drawings.

[0007] Figure 1 It is the structural front view of a controllable stem valve for a heating system.

[0008] Figure 2 yes Figure 1 Enlarged view of point I.

[0009] Figure 3 yes Figure 1 AA view.

[0010] Figure 4 yes Figure 1 BB direction view.

[0011] Figure 5 yes Figure 1 P-direction view.

[0012] Figure 6 It is a structural view of the lock body.

[0013] Figure 7 yes Figure 6 Left side view.

[0014] Figure 8 It is a schematic diagram of the interactive communication between the unlocking body and the lock body.

[0015] Fig. 9 It is a structural view of the lock body and the valve stem key connected as a whole.

[0016] Fig.10 yes Fig. 9 Left side view.

[0017] In the figure, 1-valve body; 1-2-valve body limit baffle; 2-ball package body pressure cover; 3-ball package body; 4-ball core; 4-1-valve stem hole; 5-sealing ring; 6-valve stem; 6-1-valve stem keyhole; 6-2-valve stem baffle; 6-3-limit column groove; 7-lock body; 7-1-lock core; 7-1-1-lock body chip; 7-1-2-electromagnet; 7-1-3-limit column; 7-1-4-hinge shaft; 7-1-5-reset spring; 7-2-lock body contact; 8-unlock body; 8-1-unlock body contact; 9-valve stem key; 9-1-bearing; 9-2-bearing sleeve; 9-3-handle. DETAILED DESCRIPTION

[0018] Embodiment 1, referring to the attached drawings, a controllable valve stem type valve for a heating system is provided with a ball package 3 at the central position inside the valve body 1, and a ball package cover 2 is provided above the ball package 3 in the valve body 1, and the ball package cover 2 is installed in close cooperation with the ball package 3, and the ball package cover 2 limits the ball package 3. A ball core 4 is provided in the inner cavity of the ball package 3, and a valve stem hole 4-1 is provided at the center position of the right end face of the ball core 4, and a valve stem 6 is inserted into the valve stem hole 4-1, and the rotation of the valve stem 6 drives the ball core 4 to rotate, thereby controlling the switch of the fluid in the valve. A lock body 7 is also provided, and the lock body 7 is fixedly provided in the pipe opening on the right side of the valve body 1, and the valve stem 6 is inserted into the lock body 7, and the valve stem 6 and the lock body 7 have the same center of a circle, and the valve stem 6 can rotate in the lock body 7, and the right end face of the valve stem 6 is flush with the right end face of the lock body 7, and the rightmost end of the valve stem 6 is provided with a valve stem key hole 6-1. A lock core 7-1 is provided in the lock body 7. The lock core 7-1 is on the outside of the valve stem 6. The lock core 7-1 is located directly above the valve stem 6. A lock body chip 7-1-1, a lock body contact 7-2, and a clutch mechanism are provided in the lock core 7-1. Two lock body contacts 7-2 are on the right end surface of the lock body 7. The two lock body contacts 7-2 are connected to the lock body chip 7-1-1. The lock body chip 7-1-1 is connected to the clutch mechanism. The lock body chip 7-1-1 performs program control on the clutch mechanism to control the opening and closing of the clutch mechanism. The clutch mechanism is linked to the locking device. In this embodiment, the locking device is two limit columns 7-1-3, and a valve stem limit device is provided at a position on the valve stem 6 corresponding to the locking device, that is, the two limit columns 7-1-3. The valve stem limit device in this embodiment is two pairs of limit column grooves 6-3, and the angle between the two pairs of limit column grooves 6-3 is 90 degrees. Because when the valve stem 6 controls the rotation of the ball core 4, the angle of control of the ball core 4 on the fluid in the pipeline is exactly 90 degrees, and the two limit columns 7-1-3 can stay in each pair of limit column grooves 6-3 for locking and limiting.The clutch mechanism includes an electromagnet 7-1-2, which is installed in the lock core 7-1-1. The left ends of the two limit columns 7-1-3 are provided with a hinge shaft 7-1-4, and the hinge shaft 7-1-4 is installed on the lock core 7-1-1. The limit columns 7-1-3 can rotate around the hinge shaft 7-1-4. The two limit columns 7-1-3 are connected with a return spring 7-1-5, and the other end of the return spring 7-1-5 is connected to the lock core 7-1-1. When the lock body 7 is not energized, the electromagnet 7-1-2 has no magnetism, and the elastic force of the return spring 7-1-5 pops out the two limit columns 7-1-3. The two limit columns 7-1-3 stand up and lean against the vertical end face of the valve stem limit column groove 6-3. The vertical end face of the valve stem limit column groove 6-3 limits the two limit columns 7-1-3. The two vertical limit The positioning column 7-1-3 limits the valve stem 6, so that the valve stem 6 cannot rotate radially, and the valve stem 6 cannot rotate, thereby limiting the ball core 4 and controlling the circulation and closing of the fluid in the pipeline; when the lock body chip 7-1-1 in the lock body 7 is powered, the program controls the electromagnet 7-1-2 to be energized, and the electromagnet 7-1-2 has magnetism. The two limiting columns 7-1-3 are made of metal. The magnetic force of the electromagnet 7-1-2 is greater than the elastic force of the reset spring 7-1-5, which compresses the reset spring 7-1-5 and magnetically attracts the two limiting columns 7-1-3 to a horizontal position, thereby leaving the valve stem limiting column groove 6-3 and releasing the limitation on the valve stem 6. At this time, the valve stem key is inserted into the valve stem keyhole 6-1 to rotate the valve stem 6, thereby driving the ball core 4 to control the opening and closing of the fluid in the pipeline. An unlocking body 8 is also provided, and an unlocking body contact 8-1 is provided on the left end face of the unlocking body 8, and the unlocking body contact 8-1 is in contact with the lock body contact 7-2. A battery and a controller are also provided in the unlocking body 8, wherein the controller includes a communication unit, a Bluetooth device, a storage unit, a control chip, an identification unit and a buzzer. The battery supplies power to the lock body contacts 8-1 and the controller. When the battery starts to supply power, the control chip in the controller is connected to the communication unit, Bluetooth device, storage unit, identification unit, and buzzer and controls them through programs. The lock body 8 is first connected to the background operating system through the Bluetooth device, and the Bluetooth device can also be connected to the mobile phone APP. The mobile phone APP has the same function as the background operating system. The lock body 8 obtains corresponding authorization. The content of the authority includes the scope of unlocking and the effective time of the lock body. Because the heating valve opening time during the winter heating period is generally very short, the valve opening operation for the paying users is completed within one or two weeks, so the effective time of the authorization is also limited to this period of time. The rest of the time, the lock body is in a state of blocking authority, thereby achieving the purpose of authority management and control of the on-site valve opening staff. If there are special requirements or special time periods require additional valve opening, then this is a low-probability event, then temporary authorization for one day and specifying the authority of specific points can complete the work.After the staff obtains the authorization to unlock the lock body 8, the authority information is recorded in the storage unit, and the two unlocking body contacts 8-1 of the unlocking body 8 are brought into contact with the two lock body contacts 7-2. The electric energy in the battery is connected through the contact between the unlocking body contacts 8-1 and the lock body contacts 7-2, and the lock body chip 7-1-1 is powered. Then the lock body chip 7-1-1 is activated and is in a working state. The communication unit in the unlocking body 8 starts to communicate with the lock body chip 7-1-1, and the identification unit in the unlocking body 8 sends a signal to identify the point information in the lock body chip 7-1-1. When the identified point information is not within the authority of this unlocking body, the buzzer sounds, and the lock body chip 7-1-1 does not trigger the opening operation of the clutch mechanism. The two limit columns 7-1-3 continue to be limited in the corresponding limit column slots 6-3. When the identification signal sent by the identification unit interacts with the lock body chip 7-1-1 through the communication unit, and the lock body chip information at this point is an object within the authorization of this lock body, the buzzer emits another sound, and at the same time, the lock body chip 7-1-1 triggers the signal program to control the clutch mechanism to perform the opening operation, and the electromagnet 7-1-2 of the clutch mechanism is energized, and the electromagnet 7-1-2 attracts the two limit columns 7-1-3 through magnetic force. The magnetic force of the electromagnet 7-1-2 is greater than the elastic force of the reset spring 7-1-5, and the two limit columns 7-1-3 leave the limit column groove 6-3 and are attracted by the magnetic force of the electromagnet 7-1-2. At this time, the clutch mechanism releases the limit lock of the two limit columns 7-1-3 by the limit device in the valve stem 6, thereby releasing the limit lock on the valve stem 6, and the valve stem 6 can rotate.

[0019] A valve stem baffle 6-2 is provided on the outer wall on the left side of the valve stem 6, and the valve stem baffle 6-2 is located on the right side of the valve stem hole 4-1. Two valve body limit baffles 1-2 are provided on the inner wall of the tube of the valve body 1 at positions corresponding to the valve stem baffle 6-2. One valve body limit baffle 1-2 is located at the top of the inner wall of the valve body, and the other valve body limit baffle 1-2 is located at the rightmost end of the inner wall of the valve body. The two valve body limit baffles 1-2 will not affect the rotation of the valve stem 6. The two valve body limit baffles 1-2 are oriented in a circular direction. The angle between the extension lines of the valve center is 90 degrees, and the valve stem baffle 6-2 is located between the 90 degree interval range of the two valve body limit baffles 1-2. When the valve stem 6 rotates to the position of the right valve body limit baffle 1-2, this valve body limit baffle 1-2 limits the valve stem baffle 6-2 on the outer wall of the valve stem 6, so that the valve stem 6 can no longer rotate clockwise. When the valve stem 6 reverses and rotates to the position of the uppermost valve body limit baffle 1-2, this valve body limit baffle 1-2 limits the valve stem baffle 6-2 on the outer wall of the valve stem 6. The valve stem baffle 6-2 is limited so that the valve stem 6 cannot continue to rotate counterclockwise, thereby allowing the valve stem 6 to rotate within an arc of 90 degrees. When the valve stem baffle 6-2 is limited by the valve body limit baffle 1-2 directly above, a pair of limit column grooves 6-3 are directly above the valve stem 6, and the other pair of limit column grooves 6-3 are directly to the left of the valve stem 6. The reason for this arrangement is: when the valve stem 6 drives the ball core 4, the two angles of fully open and fully closed of the ball core 4 are exactly 90 degrees to each other. If there is no limit on the valve body limit baffle 1-2, when the valve stem 6 is rotated to drive the ball core 4, the position where the ball core 4 stays is not easy to control, and it is easy to interfere or miss, resulting in the position where the ball core 4 stays is easy to be incompletely opened or incompletely closed. When it is incompletely opened, it will affect the heating effect. If it is not completely closed, during the non-heating period, the fluid in the heating pipeline will flow back into the user's indoor heating pipeline, and there have been cases where the user's home was flooded. Therefore, the valve body limit baffle 1-2 and the valve stem baffle 6-2 are used in conjunction to control the angle of the valve stem 6, which can ensure that the ball core 4 is fully opened and fully closed within a 90-degree range. The positions of the two valve body limit baffles 1-2 are not limited to the upper right quadrant of the inner wall of the right pipe opening of the valve body 6. No matter what angle they are in, as long as the valve stem key can be limited to turn the valve stem 6 so that the ball core 4 only rotates 90 degrees.

[0020] In this embodiment, the lock core 7-1-1 is arranged directly above the valve stem 6, and the two valve body limit baffles 1-2 are located directly above and to the right of the inner wall of the valve body 1. When the valve stem baffle 6-2 is limited by the valve body limit baffle 1-2 directly above, a pair of limit column grooves 6-3 are directly above the valve stem 6, and the other pair of limit column grooves 6-3 are directly to the left of the valve stem 6. The combination of position relationships set in this way is limited to controlling the ball core 4 to be able to rotate exactly 90 degrees and limit it, and the lock core 4 can limit and lock the valve stem 6 in the open and closed positions, thereby ensuring that the ball core 4 is fully opened and fully closed. However, actual production work is not limited to this combination of position relationships. It can also be arranged like this: the lock core 7-1-1 is arranged in the lock body 7 on the left side of the valve stem 6, the valve body limit baffle 1-2 is arranged on the left and below the inner wall of the valve body 1, and the valve stem baffle 6-2 is arranged within the 90-degree angle interval of the two valve body limit baffles 1-2. When the valve stem baffle 6-2 is limited by the valve body limit baffle 1-2 on the left, a pair of limit column grooves 6-3 are on the left side of the valve stem 6, and another pair of limit column grooves 6-3 are on the top of the valve stem 6. In short, there are multiple combinations that can realize the functions of the present application, thereby completing the control of the switch of the valve stem 6, which will not be described repeatedly here, and these position combination relationships should also be within the scope of protection of the present application.

[0021] The working principle of the controllable valve stem type valve for the heating system in the first embodiment is as follows: the lock core 4 is located in the lock body 7 just above the valve stem 6, the unlocking body contact 8-1 of the authorized unlocking body 8 is in contact with the lock body contact 7-2, the lock body chip 7-1-1 is powered on and activated and is in working state, the electromagnet 7-1-2 sucks the two lock body limit columns 7-1-3 out of the valve stem limit column groove 6-3, the lock body limit column 7-1-3 releases the limit on the valve stem 6, the valve stem key 9 is inserted into the valve stem key hole 6-1, the valve stem key 9 is rotated clockwise, the valve stem 6 is driven to rotate, the valve stem 6 drives the ball core 4 to rotate, when the valve stem baffle 6-2 is limited by the valve body limit baffle 1-2 on the right, the valve stem key 9 can no longer continue to rotate clockwise, at this time the ball core 4 is just in a fully closed state, in Before the valve stem key 9 rotates, the pair of limit column grooves 6-3 located on the left side of the valve stem 6 are now located above the valve stem 6. The valve stem key 9 is pulled out, and then the unlocking body 8 is separated from the lock body 7. The lock body chip 7-1-1 is powered off, and the electromagnet 7-1-2 is powered off and loses its magnetism. The reset spring 7-1-5 pops out the two limit columns 7-1-3 so that they are vertically pressed against the two limit column grooves 6-3 below them, and then the valve stem 6 is locked and locked so that the valve stem 6 cannot rotate. The ball core 4 is closed to put the heating valve in a closed state. The control chip in the unlocking body 8 controls the communication unit to work, so that the unlocking body 8 and the lock body 7 communicate with each other. The identification unit in the unlocking body 8 identifies the information of this point, and then transmits the closing information of this point to the storage unit of the unlocking body 8 for storage. When all residents have all operated to close, the unlocking body is brought back to the system control center, and all information is transmitted to the backend control system through a Bluetooth device or a mobile phone APP. Before the heating period arrives, the users who have paid are counted and recorded in the management and control system. The mobile phone APP or the background management and control system authorizes each unlocking body through the Bluetooth device. The authority of each unlocking body includes the jurisdiction of the employee using the unlocking body, the location information of the paid users within the jurisdiction, and the time limit of the use of the unlocking body 8. These are all stored in the storage unit of the unlocking body 8. Users who have not paid the heating fee do not have the authority to unlock this unlocking body.The employee holds the unlocking body 8 to open the valve for the user who has paid the fee. The battery in the unlocking body 8 supplies power to the unlocking body contact 8-1 and the controller. The control chip in the controller is connected to the communication unit, the Bluetooth device, the storage unit, the identification unit, and the buzzer and controls them by program. The two contacts of the unlocking body 8 are in contact with the two lock contacts 7-2 on the lock body 7, and the lock body chip 7-1-1 is powered. Then, the lock body chip 7-1-1 is activated and in working state. The communication unit in the unlocking body 8 is connected to the lock body chip 7-1-1. Start interactive communication, the identification unit in the unlocking body 8 sends a signal to identify the point information in the lock body chip 7-1-1. When the identified point information is not within the authority of this unlocking body 8, the buzzer sounds, the lock body chip 7-1-1 does not trigger the opening operation of the clutch mechanism, and the two limit columns 7-1-3 continue to be limited in the corresponding limit column grooves 6-3; when the identification signal sent by the identification unit interacts with the lock body chip 7-1-1 through the communication unit, the lock body chip 7-1-1 information at this point is the unlocking body. 8 authorized object, the buzzer emits another sound, and the lock body chip 7-1-1 triggers the signal program to control the clutch mechanism to perform the opening operation. At this time, the electromagnet 7-1-2 is energized, and the magnetic force sucks the two limit posts 7-1-3 out of the limit post slot 6-3. The limit post 7-1-3 releases the limit on the valve stem 6, and the valve stem key 9 is inserted into the valve stem key hole 6-1 and rotated 90 degrees counterclockwise. At this time, the valve stem baffle 6-2 is limited by the valve body limit baffle 1-2 just above it, so that it can no longer rotate counterclockwise. , the valve stem key 9 drives the valve stem 6 to rotate the ball core 4 90 degrees, so that the ball core 4 is in a completely open state, the heating fluid is in a circulating state, and the operation of opening the valve for heating is completed. The valve stem key 9 is pulled out from the valve stem key hole 6-1, and then the unlocking body 8 is separated from the lock body 7. The lock body chip 7-1-1 is powered off, the electromagnet 7-1-2 is powered off and loses its magnetism, and the reset spring 7-1-5 is reset, so that the two limit columns 7-1-3 pop out and stand upright in the two limit column grooves 6-3 below them, thereby locking and limiting the valve stem 6. The communication unit of the unlocking body 8 transmits the information of successful valve opening to the storage unit. When the employee completes the work within the jurisdiction, he / she will hand in the unlocking body 8 and upload the information in the storage unit to the management and control system through the Bluetooth device. The management personnel can use the management and control software to analyze whether all the users who have paid have opened the valves for heating, what is the situation of the users who have paid but have not opened the valves, whether the staff did not go to the site to open the valves or the valve body of this user's point is faulty, and whether there are any users who have not paid and have opened the valves. The heating work can be analyzed based on the summarized information, thereby achieving the purpose of efficient management and control.

[0022] In the second embodiment, the unlocking body 8 and the valve stem key 9 can be set as one body, and do not need to be set separately as in the first embodiment. If they are set separately, one hand needs to hold the unlocking body 8, and then the other hand needs to hold the valve stem key 9, and insert the valve stem key 9 into the valve stem key hole 6-1 to rotate the valve stem 6 to switch the lock, which is more troublesome to operate. The valve stem key is integrally connected and set below the unlocking body contact 8-1 on the left side of the unlocking body 8, and the unlocking body contact 8-1 above is inserted into the recessed lock body contact 7-2 and cannot rotate. The valve stem key 9 below is inserted into the valve stem key hole 6-1 in parallel up and down at the same time, and the valve stem key 9 protrudes forward, and the protruding part can be inserted into the valve stem key hole 6-1. The outer ring of the valve stem key 9 is provided with a bearing 9-1, and the bearing 9-1 is provided with a bearing sleeve 9-2. The bearing sleeve 9-2 and the controller part of the unlocking body 8 above it are fixedly connected together to form an integral unlocking body, and the tail end of the valve stem key 9 is provided with a handle 9-3. When the unlocking body 8 has the authority, the contacts in the unlocking body contacts 8-1 are inserted into the lock body contacts 7-2, and the two recessed lock body contacts 7-2 clamp the two unlocking body contacts 8-1, so that the unlocking body contacts 8-1 remain stationary, and the unlocking body controller supplies power to the lock body chip 7-1-1 through the unlocking body contacts 8-1, and the lock body chip 7-1-1 works. At the same time, the valve stem key 9 integrated under the unlocking body controller is inserted into the valve stem keyhole 6-1, and then the handle 9-3 at the tail end of the valve stem key is rotated, and the valve stem key 9 will rotate in its external bearing 9-1, and at this time, the unlocking body contacts 8-1 are inserted into the lock body contacts 7-2, and the unlocking body contacts 8-1 and the unlocking body controller connected behind remain stationary, so that the unlocking and rotating valve stem operations can be performed in one operation, eliminating the cumbersome mode of separate operations.

[0023] In the third embodiment, a lock body 7 is fixedly connected to the valve body 1, a lock core 7-1 and a lock body contact 7-2 are provided in the lock body 7, a lock body chip 7-1-1, a clutch mechanism and a locking device are provided in the lock core 7-1, the lock body contact 7-2 is connected to the lock body chip 7-1-1, the lock body chip 7-1-1 is connected to the clutch mechanism, the lock body chip 7-1-1 performs program control on the clutch mechanism to control the opening and closing of the clutch mechanism, the clutch mechanism is linked to the locking device, the locking device is a lock ball, a limit device is provided on the valve stem, the limit device is a limit hole matched with the lock ball, the lock ball is controlled by the linkage connection of the clutch mechanism in the lock body, locked into the limit hole of the valve stem 6, and limited by the limit hole, thereby controlling the rotation of the valve stem 6, and the communication relationship between the unlocking body 8 and the lock body 7 is the same as that in the first embodiment.

[0024] In this embodiment, the specific connection relationship and linkage relationship between the lock body chip in the lock core, the clutch mechanism and the locking device will not be described in detail here. Firstly, these are not the main protection scope of this application. Secondly, too many technical solutions and structural features in this regard have been disclosed in the prior art. These are already well-known technologies familiar to technical personnel in the relevant field. For specific solutions, please refer to the patent application with the patent name "A multi-mode smart door lock" and patent number "2018115253025", and the patent application with the patent name "An electronic lock core and electronic lock" and patent number "2020104063293".

[0025] Embodiment 4. In Embodiments 1-3, a locking device is provided on the lock body, and a limit device is provided on the valve stem. The positions may also be swapped, that is, a lock core and a locking device are provided on the valve stem, and a limit device is provided on the lock body. However, the ideas are the same, that is, non-mechanical operation of the valve stem is performed in a way that is beneficial to the system control of the heating valve. The technical problems solved are the same, except that the positions of the structures are swapped. However, such structural features are within the scope of protection of this application.

[0026] In the description of the invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

Claims

1. A controllable valve stem valve for a heating system, comprising a valve body (1) and a valve stem (6), characterized in that: A lock body (7) is fixedly connected to the valve body (1), a lock core (7-1) is provided in the lock body (7), a lock body chip (7-1-1), a clutch mechanism and a locking device are provided in the lock core (7-1), the lock body chip (7-1-1) is connected to the clutch mechanism, the lock body chip (7-1-1) controls the clutch mechanism to switch, the clutch mechanism is linked to the locking device, a valve stem (6) is movably installed in the lock body (7), a limit device for limiting the locking device is provided on the valve stem (6), the left end of the valve stem (6) is connected to the ball core (5), the rightmost end of the valve stem is provided with a valve stem keyhole (6-1), and a controller is provided on the lock body (8), and the controller communicates with the lock body chip (7-1) on the lock body (7).

2. The controllable stem valve for a heating system according to claim 1, characterized in that: A lock body contact (7-2) is provided on the right end surface of the lock body (7), one end of the lock body contact (7-2) is connected to the lock body chip (7-1-1), a lock body contact (8-1) is provided at the front end of the unlocking body (8), the lock body contact (8-1) is connected to the other end of the lock body contact (7-2), and a battery and a controller are also provided in the unlocking body (8), wherein the controller comprises a communication unit, a Bluetooth device, a storage unit, a control chip, an identification unit and a buzzer, the battery supplies power to the controller and the lock body contact, and the control chip in the controller is connected to the communication unit, the Bluetooth device, the storage unit, the identification unit and the buzzer and performs program control on them.

3. The controllable stem valve for a heating system according to claim 2, characterized in that: The locking device on the lock core (7-1) is two limit posts (7-1-3), and the limit posts on the valve stem (6) are two pairs of limit post grooves (6-3). The angle between the two pairs of limit post grooves (6-3) is 90 degrees. The two pairs of limit post grooves (6-3) correspond to the positions between the two limit posts (7-1-(3). The two limit posts (7-1-3) can be respectively erected in the two pairs of limit post grooves (6-3) for locking and limiting.

4. The controllable stem valve for a heating system according to claim 3, characterized in that: The lock core (7-1) is arranged on the outside of the valve stem (6). The clutch mechanism in the lock core (7-1) comprises an electromagnet (7-1-2), two limit columns (7-1-3), a return spring (7-1-5), and a hinge shaft (7-1-4). The two limit columns (7-1-3) are connected to the return spring (7-1-5). The other end of the return spring (7-1-5) is fixed on the lock core (7-1). The two limit columns (7-1-3) rotate around the hinge shaft (7-1-4). The hinge shaft (7-1-4) is fixed on the lock core (7-1). The lock body chip (7-1-1) is connected to the electromagnet (7-1-2) and the electromagnet (7-1-2) is program-controlled. The electromagnet (7-1-2) controls the horizontal and vertical positions of the two limit columns (7-1-3).

5. The controllable stem valve for a heating system according to claim 1, characterized in that: A valve stem baffle (6-2) is provided on the outer wall on the left side of the valve stem (6), the valve stem baffle (6-2) is located on the right side of the valve stem hole (4-1), and two valve body limit baffles (1-2) are provided on the inner wall of the tube of the valve body (1) at positions corresponding to the valve stem baffle (6-2), the angle between the two valve body limit baffles (1-2) extended from the center of the circle is 90 degrees, and the valve stem baffle (6-2) is located within the 90 degree range of the two valve body limit baffles (1-2).

6. The controllable stem valve for a heating system according to claim 5, characterized in that: A valve body limit baffle (1-2) is located at the uppermost end of the inner wall of the valve body (1) tube, and a valve body limit baffle (1-2) is located at the rightmost end of the inner wall of the valve body (1) tube. The lock core (7-1) is arranged directly above the valve stem (6). When the valve stem baffle (6-2) is located directly above the valve stem (6), it is limited by the uppermost valve body limit baffle (1-2). At this time, a pair of limit column grooves (6-3) are located above the valve stem (6), and another pair of limit column grooves (6-3) are located on the left side of the valve stem (6).

7. The controllable stem valve for a heating system according to claim 2, characterized in that: The locking device on the lock core (7-1) is a lock ball. A limit device is provided on the valve stem (6). The limit device is a limit hole that matches the lock ball. The lock ball is controlled by the linkage connection of the clutch mechanism in the lock body (7). The lock ball is locked into the limit hole of the valve stem (6) to limit the rotation of the valve stem (6).

8. The controllable stem valve for a heating system according to claim 2, characterized in that: The two unlocking body contacts (8-1) are inserted into the two lock body contacts (7-2), the two lock body contacts (7-2) are recessed inwardly, the forward protruding portion of the valve stem key is inserted into the valve stem key hole (6-1), a bearing (9-1) is provided outside the valve stem key (9), a bearing sleeve (9-2) is provided outside the bearing (9-1), the bearing sleeve (9-2) and the controller portion of the unlocking body above it are fixedly connected together to form an integral unlocking body, and a handle (9-3) is provided at the rear end of the valve stem key (9).

9. The controllable stem valve for a heating system according to claim 2, characterized in that: The lock body chip (7-1-1) in the lock body (7) records the location information of the heating user. After the lock body chip (7-1-1) is powered on, the control chip in the lock body (8) controls the communication unit to communicate with the lock body chip (7-1-1). The control chip controls the identification unit to identify the lock body chip (7-1-1), and the storage unit stores the operation information.

10. The controllable stem valve for a heating system according to claim 2, characterized in that: The Bluetooth device in the unlocking body (8) is connected to the background monitoring system platform, and the Bluetooth device in the unlocking body (8) is connected to the mobile phone APP.

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