Controllable valve for heat supply system

Abstract

The utility model belongs to hot equipment for heat supply in the building industry, and particularly relates to a controllable valve for a heat supply system. A limiting device is arranged in the inner wall of a right pipe opening of the valve body, and the limiting device is a circle of spherical groove formed in the inner wall. A lock body is arranged, a spring bolt is arranged in each spring bolt hole, and a limiting device on a valve body limits the spring bolts on the lock body. A clutch mechanism and a lock body chip are further arranged in a lock cylinder of the lock body, a rotating needle which protrudes forwards and is matched with a rotating needle hole in the lock body in an inserted mode is arranged at the foremost end of the unlocking body, a battery and a controller are further arranged in the unlocking body, and the battery supplies power to an unlocking body contact and the controller. And a control chip in the controller is connected with the communication unit, the Bluetooth device, the storage unit, the identification unit and the buzzer and performs program control on the communication unit, the Bluetooth device, the storage unit, the identification unit and the buzzer. The chip is additionally arranged in the lock body, so that the heat supply valve cannot be easily and mechanically opened, closed-loop management is realized, the management and control efficiency of a heating system is effectively improved, and the loss of a heat source is reduced.

Description

Technical Field

[0001] This utility model pertains to heating backup in the construction industry, and specifically relates to a controllable valve for heating systems. Background Technology

[0002] During the heating season in northern my country, heating companies use a "one valve per household" control system for their customers. Our company applied for a patent in 2018 titled "Laser Anti-theft Locking Valve for Heating Systems" (patent number "2018210519526"). This product has been widely used in heating systems, and its effective control of heating valves has significantly reduced heat loss for heating companies. However, the structural features of this product are publicly available and not complex, making it easily crackable. Furthermore, authorized personnel can freely open and close the valves without leaving any trace, causing management difficulties. As time goes on, there are signs that heat loss for heating companies is increasing again. Summary of the Invention

[0003] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a controllable valve for a heating system that has a simple structure and more effective control over heating valves.

[0004] The technical solution adopted by this utility model to solve the technical problem is a controllable valve for a heating system. Its characteristic is that a spherical body is located at the center of the valve body, and a ball core is located within the inner cavity of the spherical body. A valve stem hole is located on the right end face of the ball core, and a valve stem passes through the valve stem hole. Rotation of the valve stem drives the ball core to rotate. A limiting device is provided on the inner wall of the right-side pipe opening of the valve body; the limiting device is a ring of spherical grooves on the inner wall.

[0005] The limiting device can also be an annular boss on the inner wall of the right-side port of the valve body. It serves to limit the movement of the bolt on the lock body.

[0006] A 90-degree limiting block is fixed at the upper right corner of the leftmost end of the inner wall of the right side of the valve body. The 90-degree limiting block is a 90-degree fan-shaped block. The arc end of the fan-shaped block is fixedly connected to the inner wall of the valve body. The center of the 90-degree limiting block is passed through by the rightmost end of the valve stem.

[0007] The lock body is provided with two symmetrical lock tongue holes on the outer wall of the cylindrical lock shell on the left side, and each lock tongue hole is provided with a lock tongue which can be ejected and retracted in the lock tongue hole. The valve body is provided with a limiting device which limits the lock tongue on the lock body. The lock tongue is a spherical lock bead. The lock core of the lock body is further provided with a clutch mechanism and a lock body chip. The lock body chip controls the clutch action of the clutch mechanism through an electric circuit. The clutch mechanism is connected with the rotating needle hole in linkage, and the rotating needle hole controls the lock bead in linkage. The lock core of the right end surface of the lock body is provided with two lock body contacts which are connected with the lock body chip. The rotating needle hole is located on the same side of the two lock body contacts. The left end of the cylindrical lock shell of the lock body is provided with two symmetrical 90-degree arc-shaped limiting pieces which protrude to the left. The included angle between the two side edges of each 90-degree arc-shaped limiting piece and the extension line of the center is 90 degrees. The 90-degree limiting block is limited and clamped in the space between the two 90-degree arc-shaped limiting pieces. The front end of the unlocking body is provided with a rotating needle which protrudes forward and is inserted into the rotating needle hole of the lock body. The unlocking body is further provided with a battery and a controller. 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 unlocking body contacts and the controller. When the battery starts to supply power, the control chip in the controller is connected with the communication unit, the Bluetooth device, the storage unit, the identification unit and the buzzer and controls them in program. The controller communicates with the lock body chip.

[0008] Further, the metal lock seat is integrally formed in the pipe opening on the right side of the valve body. A 90-degree limiting block is fixedly arranged at the upper right corner of the inner wall of the left end of the lock seat. The 90-degree limiting block is a 90-degree sector. The arc end of the sector of the 90-degree limiting block is fixedly connected with the inner wall of the lock seat. The center of the 90-degree limiting block is penetrated by the rightmost end of the valve rod. A limiting device is arranged on the inner wall of the lock seat. The limiting device can be a circle of spherical grooves, a circle of annular bosses or other limiting blocks. The limiting device of the lock seat limits the lock tongue on the lock body.

[0009] The utility model discloses a heat supply system use controllable valve structure is compact, easy operation, through the control of passive lock body, and add the chip in the lock body, make heat supply valve not be easily mechanically opened, be equipped with controller in the lock body, through the use of RFID radio frequency technology, make the lock body of authorized opening only with the lock body of its authority matching success, can only open heat supply valve, the management department of heat supply company can carry out authority management to the jurisdiction range and authority use time and specific operator of the lock body through software program and system platform, even if the lock body is lost, the lock body of losing authority no longer has the function of opening heat supply valve, the interactive communication of the chip of lock body and the controller of the lock body, make the switch information of lock body all can be returned to the management platform, like this, both standardize the work state and authority use situation of heat supply company internal staff, and also monitor the correct state of every heating user, realize closed loop management, effectively improve the management efficiency of heating system, reduce the loss of heat source. BRIEF DESCRIPTION OF DRAWINGS

[0010] The following will be specifically described with examples in combination with the drawings.

[0011] Figure 1 It is the main view of heat supply system use controllable valve whole structure.

[0012] Figure 2 It is the structure view of valve body sets up the stop device.

[0013] Figure 3 It is the structure view of valve body inside connection lock seat.

[0014] Figure 4 It is the structure view of lock body.

[0015] Figure 5 It is Figure 4 Plan view.

[0016] Figure 6 It is Figure 5 A view of.

[0017] Figure 7 It is Figure 4 B view of.

[0018] Figure 8 It is Figure 3 P view of.

[0019] Figure 9 It is the structure view of the lock body of opening.

[0020] Figure 10 It is Figure 9 C view of.

[0021] Figure 11is a schematic block diagram of the lock body and the unlocking body interacting with each other.

[0022] Figure 12 is a structure diagram of the boss as a limiting device.

[0023] Figure 13 is a top view of the lock cylinder.

[0024] Figure 14 is Figure 13 is a connection relationship diagram of the middle column-shaped limiting block and the strip-shaped coupling.

[0025] Figure 15 is Figure 14 is a left side view of the lock cylinder.

[0026] Figure 16 is a view of the lock cylinder side cover from the inside to the outside.

[0027] Figure 17 is Figure 16 is a right side view of the lock cylinder.

[0028] Figure 18 is a structure relationship diagram of the limiting cone and the lock body.

[0029] Figure 19 is Figure 18 is a sectional view of the lock cylinder.

[0030] Figure 20 is a position relationship diagram of the limiting cone and the lock body.

[0031] In the figure, 1-valve body; 1-2-spherical groove, 1-3-boss; 2-ball pack body cover; 3-ball pack; 4-ball core; 4-1-valve rod hole; 5-sealing ring; 6-valve rod; 6-1-valve rod key limiting table; 7-lock seat; 7-1-90 degree limiting block; 7-2-limiting device; 8-lock body; 8-1-lock body cylindrical shell; 8-2-latch; 8-3-90 degree arc limiting piece; 8-4-lock cover; 8-5-hinge shaft; 8-6-lock body contact; 8-7-lock cylinder; 8-8-lock cylinder limiting block; 8-9-rotary needle hole; 8-10-lock body chip; 8-11-left limiting shoulder; 8-12-right limiting shoulder; 8-13-triangular limiting arc; 9-unlocking body; 9-1-unlocking body switch button; 9-2-rotary needle; 9-3-unlocking body contact;

[0032] 8-7-1 - lock cylinder limiting block; 8-7-2 - lock cylinder side cover; 8-7-3 - strip limiting groove; 8-7-4 - semi-cylindrical surface; 8-7-5 - square opening; 8-7-6 - motor; 8-7-7 - strip coupling; 8-7-8 - cylindrical limiting block; 8-7-9 - limiting cone; 8-7-10 - circular arc limiting piece; 8-7-11 - cylindrical limiting block hole; 8-7-12 - lock cylinder lower hole; 8-7-13 - return spring one; 8-7-14 - elastic block; 8-7-15 - platform; 8-7-16 - return spring two. DETAILED DESCRIPTION

[0033] Example one, refer to the attached Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 9 , Figure 10 , Figure 11 , Figures 13-20The controllable valve for heating system is provided with a ball body 3 in the central position of the valve body 1, a ball body cover 2 is arranged above the ball body 3 in the valve body 1, the ball body cover 2 is tightly fitted with the ball body 3, and the ball body cover 2 limits the ball body 3. A ball core 4 is arranged in the inner cavity of the ball body 3, a valve rod hole 4-1 is arranged in the central position of the right end surface of the ball core 4, a valve rod 6 is arranged in the valve rod hole 4-1, the valve rod 6 rotates to drive the ball core 4 to rotate, and the opening and closing of the fluid in the valve are controlled. A sealing ring groove is arranged on the outer circumference of the valve rod 1 at the position connected with the ball body 2, and a sealing ring 4 is arranged in the groove. A limiting device 7-2 is arranged in the inner wall of the right side pipe opening of the valve body 1, the limiting device 7-2 is a circle of spherical grooves 1-2 arranged on the inner wall, a lock body 8 is arranged, the lock body is composed of a lock body cylindrical shell 8-1 and a lock core 8-7, two lock tongue holes are symmetrically arranged on the outer wall of the lock body cylindrical shell 8-1 on the left side of the lock body 8, a lock tongue 8-2 is arranged in each lock tongue hole, and the lock tongue 8-2 can be popped out and retracted in the lock tongue hole. The lock tongue 8-2 is a spherical lock bead, when the lock bead is located in the position of the spherical groove 1-2, the lock bead is popped out and fixed, the spherical groove 1-2 limits and fixes the lock bead, and the limiting device 7-2 of the valve body locks the lock body 8. A clutch mechanism and a lock body chip are further arranged in the lock core 8-7, the lock body chip controls the clutching action of the clutch mechanism through a circuit. The clutch mechanism is connected with a rotating needle hole 8-9 in linkage, the rotating needle hole 8-9 is connected with a control lock bead, controls the pop-out and retraction of the lock bead, and therefore the clutch mechanism is connected with the lock tongue 8-2 in linkage. When the lock bead is located in the groove of the spherical groove, the rotating needle hole 8-9 is rotated to a closed state, then the rotating needle hole limits the lock bead, makes the lock bead unable to be retracted, and keeps the lock bead in the spherical groove 1-2, so that the limiting device 7-2 of the valve body limits and locks the lock bead in the spherical groove 1-2, and the valve body 1 and the lock body 8 are locked together. The linkage principle between the clutch mechanism and the rotating needle hole 8-9 is that the clutch mechanism is controlled by the lock body chip, when the clutch mechanism is opened, the rotating needle hole 8-9 can be operated in rotation, and when the clutch mechanism is closed, the rotating needle hole is limited and cannot be operated in rotation. The lock body chip is passive, needs to be charged by an external power supply to activate the working state of the chip, the lock body chip writes the specific point position information of the valve body 1 connected with the lock body, that is, the specific doorplate number address information of the heating user, when the chip addresses to the interactive communication information of the lock body with the authority, the lock body chip controls the clutch mechanism to execute the opening work through a program instruction, the clutch mechanism releases the locking of the rotating needle hole 8-9, the rotating needle 9-2 rotates to control the lock bead to retract from the lock tongue hole of the lock body cylindrical shell 8-1. The limiting of the lock body by the limiting device 7-2 is released, and the lock body 8 and the valve body 1 can be separated.

[0034] The structure relationship and linkage principle between the lock body chip 8-10 in the lock cylinder 8-7, the clutch mechanism, the rotating pin 9-2 and the lock bolt 8-2 in the lock body 8 will be briefly introduced below, that is, the further explanation of the linkage control relationship between the lock body chip and the clutch mechanism and the linkage control relationship between the clutch mechanism and the lock bolt. This description and explanation are applicable to all embodiments of the present application.

[0035] There are a lock body contact 8-6 and a rotating pin hole 8-9 on the right end face of the lock cylinder 8-7, a strip-shaped lock cylinder limiting block 8-7-1 is fixedly arranged at the middle position of the left end face of the lock cylinder 8-7, bolt holes are arranged on both sides of the lock cylinder limiting block 8-7-1, a lock cylinder side cover 8-7-2 is further arranged on the left side of the lock cylinder 8-7, the lock cylinder side cover 8-7-2 has a strip-shaped limiting block slot 8-7-3 matched with the lock cylinder limiting block, two bolt holes are arranged on both sides of the strip-shaped limiting block slot 8-7-3, the two bolt holes on the lock cylinder side cover 8-7-2 are coincident with the bolt holes on both sides of the lock cylinder strip-shaped limiting block 8-7-1, a semi-cylindrical surface 8-7-4 is further arranged on the outer edge of the lock cylinder side cover 8-7-2, the lock cylinder side cover 8-7-2 is buckled on the left end face of the lock cylinder 8-7, the lock cylinder strip-shaped limiting block 8-7-1 of the lock cylinder 8-7 is arranged into the strip-shaped limiting block slot 8-7-3 on the lock cylinder side cover 8-7-2, the two bolt holes on the left end face of the lock cylinder are coincident with the two bolt holes on the lock cylinder side cover 8-7-2, and bolts are arranged into the two bolt holes for connection and fixation. The opening end of the semi-cylindrical surface 8-7-4 on the outer edge of the lock cylinder side cover 8-7-2 is provided with a square-shaped gap 8-7-5, and slopes are arranged on both sides of the gap.

[0036] In the lock core 8-7, there is a lock body chip 8-10, the lock body chip 8-10 is connected with a clutch mechanism, the clutch mechanism includes a motor 8-7-6, a strip-shaped coupling 8-7-7, a cylindrical limiting block 8-7-8, a limiting cone 8-7-9, the motor 8-7-6 of the clutch mechanism is connected with the lock body chip 8-10, is controlled by the program of the lock body chip 8-10, the output shaft of the motor 8-7-6 is connected with one end of the strip-shaped coupling 8-7-7, one end of the cylindrical limiting block 8-7-8 is provided with two circular-arc-shaped limiting sheets 8-7-10, the other end of the strip-shaped coupling 8-7-7 is inserted between the two circular-arc-shaped limiting sheets 8-7-10, the strip-shaped coupling 8-7-7 is rotated to drive the cylindrical limiting block 8-7-8 to rotate.The central part of the cylindrical limiting block 8-7-8 is provided with a cylindrical limiting block hole 8-7-11, the lower part of the cylindrical limiting block 8-7-8 is provided with a lock core lower hole 8-7-12, the limiting cone 8-7-9 is inserted into the lock core lower hole 8-7-12 of the lock core 8-7 from bottom to top, and the limiting cone 8-7-9 is provided with a reset spring 8-7-13.In the left end of the lock body 8, that is, the inner wall of the port close to the one end of the valve body 1, there is a left limiting shoulder 8-11 and a right limiting shoulder 8-12, and a triangular limiting circular arc 8-13 is arranged between the left limiting shoulder 8-11 and the right limiting shoulder 8-12, the top end of the limiting circular arc is at the lowermost part of the inner wall of the lock body, the top angle is circular-arc-shaped, the lowermost end of the limiting cone 8-7-9 is in the shape of a chamfer with two sides provided with a gentle slope, so that it can slide in the top angle of the triangular limiting circular arc 8-13.

[0037] The linkage relationship between the lock body chip 8-10 and the clutch mechanism, the rotating needle hole 8-9, and the lock tongue 8-2 is as follows: the rotating needle 9-2 of the unlocking body 9 is inserted into the rotating needle hole 8-9 of the lock body, the unlocking body contact 9-3 is in contact with the lock body contact 8-6, when the authority of the unlocking body 9 can be successfully recognized by the lock body 8, the lock body chip 8-10 is powered on and starts to work to control the clutch mechanism. The lock body chip 8-10 supplies power to the motor 8-7-6 in the clutch mechanism, the motor 8-7-6 works and rotates after being powered on, the output shaft drives the strip-shaped coupling 8-7-7 to rotate, the strip-shaped coupling 8-7-7 rotates from the vertical state to the horizontal state, the two side elastic blocks 8-7-14 of the strip-shaped coupling 8-7-7 can be linked up and down, the elastic block on one side is wider than the elastic block on the other side, the inner side of the wide elastic block 8-7-14 has a convex platform 8-7-15, the uppermost part of the two elastic blocks 8-7-14 is provided with a convex point, the convex point is sleeved with a reset spring 8-7-16, the lower part of the two elastic blocks 8-7-14 is connected together and can be linked to move up and down simultaneously, when the strip-shaped coupling 8-7-7 rotates from the vertical state to the horizontal state, the side edge of the strip-shaped coupling 8-7-7 will contact the lower part of the convex platform 8-7-15 of the wider elastic block 8-7-14, because the driving force of the motor is greater than the elastic force of the reset spring 8-7-16, the side edge of the strip-shaped coupling 8-7-7 will lift the wider elastic block 8-7-14 upward, because the two elastic blocks 8-7-14 are connected together at the lower part, the other spring is also lifted, so that the reset spring 8-7-16 on the two elastic blocks is in a compressed state, the other end of the reset spring 8-7-16 is connected to the inner wall above the lock cylinder 8-7. At this time, the other end of the strip-shaped coupling 8-7-7 is clamped between the two arc-shaped limiting pieces 8-7-10 of the cylindrical limiting block 8-7-8, so that the rotation of the strip-shaped coupling 8-7-7 also drives the rotation of the cylindrical limiting block 8-7-8, so that the cylindrical limiting hole 8-7-11 in the cylindrical limiting block 8-7-8 also rotates to the position where the limiting hole faces downward.When the cylindrical limiting block 8-7-8 is not rotated, the lowermost conical tip of the limiting cone 8-7-9 is in the center of the arc angle of the triangular limiting arc 8-13 of the lock body, and at this time, the part of the lock tongue 8-2, that is, the lock bead, is in the lock hole of the lock body, and the other part is limited and fixed in the limiting device 7-2 of the lock seat 7 or the valve body 1. When the unlocking body 9 is not authorized, the lock body chip 8-10 controls the motor 8-7-6 to be unable to rotate, and the cylindrical limiting block 8-7-8 is not rotated. Then, after the rotating needle 9-2 is inserted into the rotating needle hole 8-9, in order to rotate the rotating needle 9-2, the limiting cone 8-7-9 needs to be released from the limiting of the triangular limiting arc 8-13 of the lock body. Although the lowermost conical tip of the limiting cone 8-7-9 is a slow slope arc shape and matches the triangular limiting arc 8-13, in order for the limiting cone 8-7-9 to be released from the limiting of the triangular limiting arc 8-13, the lowermost end of the limiting cone 8-7-9 needs to move away from the arc angle of the triangular limiting arc 8-13. At this time, the limiting cone 8-7-9 wants to move upward in the lower hole 8-7-12 of the lock cylinder, but the cylindrical limiting block 8-7-8 has not been rotated yet, the direction of the cylindrical limiting hole 8-7-11 is not downward, the uppermost end of the limiting cone 8-7-9 is on the cylindrical surface of the cylindrical limiting block 8-7-8, and the cylindrical surface is in a static state to prevent the limiting cone 8-7-9 from continuing to move upward, thereby locking the lock cylinder 8-7 from rotating. When the unlocking body 9 has the right to operate, the motor 8-7-6 drives the strip-shaped shaft 8-7-7 and the cylindrical limiting block 8-7-8 to rotate, and the cylindrical limiting block 8-7-8 rotates to the position where the cylindrical limiting hole 8-7-11 faces downward. At this time, when the rotating needle 9-2 is rotated, the top of the limiting cone 8-7-9 will go deep into the cylindrical limiting hole 8-7-11 along the lower hole 8-7-11 of the lock cylinder, and the conical tip of the limiting cone 8-7-9 will move away from the arc angle of the triangular limiting arc 8-13. Thus, the limiting of the triangular limiting arc 8-13 on the limiting cone 8-7-9 is released, and the limiting of the lock body on the lock cylinder 8-7 is released. Therefore, the lock cylinder 8-7 rotates with the rotating needle 9-2. After the lock cylinder 8-7 rotates, the lock cylinder side cover 8-7-2 connected to the leftmost end of the lock cylinder 8-7 also rotates. The lock cylinder side cover 8-7-2 is in the shape of a half-cylindrical surface, and the side edges of the half-cylindrical surface 8-7-4 will be limited and controlled by the left limiting shoulder 8-11 and the right limiting shoulder 8-12 of the lock body, so that the lock cylinder 8-7 rotates within a certain angle. When the lock cylinder 8-7 is in the locked limiting state, the part of the lock tongue 8-2, that is, the lock bead, is in the lock hole of the lock body, and the other part is limited and fixed by the limiting device in the limiting device 7-2 of the lock seat 7 or the valve body 1. The lower part of the lock bead is the outer wall of the half-cylindrical surface 8-7-4 of the lock cylinder side cover 8-7-2, which supports and blocks the lock bead to prevent it from moving downward in the lock hole.When the lock body 9 has the right to open the lock, the contact 9-3 will supply power to the lock body chip 8-10, the motor 8-7-6 will work, the tumblers 9-2 will be inserted into the tumbler hole 8-9, and the lock cylinder 8-7 can be rotated, then the lock tongue 8-2, which is also called the lock bead here, will roll along the gentle slope of the upper half-cylindrical surface 8-7-4 of the lock cylinder side cover into the square gap 8-7-5, at this time the lock bead is separated from the limiting device 7-2, and the limiting of the lock bead by the limiting device 7-2 is released, and the lock body 8 can be pulled out of the lock seat 7 or the valve body 1, and the valve stem 6 in the valve body 1 can be rotated. At this time, part of the lock bead falls into the square gap 8-7-5, and a small part is still in the lock hole, but the uppermost part of the lock bead is already below the upper edge of the lock hole, and the operation of opening the lock is completed. After the operation of the valve stem 6 is completed, the lock body 8 is inserted into the lock seat 7 or the valve body 1, and the tumbler 9-2 is rotated, at this time the tapered end of the limiting cone 8-7-9 will move from the position away from the circular arc angle of the triangular limiting circular arc 8-13 to the position of the circular arc angle, and finally the tapered end of the limiting cone 8-7-9 will stop at the center of the circular arc angle of the triangular limiting circular arc 8-13, the distance from the center of the triangular limiting circular arc 8-13 to the circular arc angle is longer than the distance to the two sides, so under the action of the elastic force of the reset spring one 8-7-13, the limiting cone 8-7-9 will be bounced out of the cylindrical limiting hole 8-7-11 of the cylindrical limiting block 8-7-8, and the remaining part will stay in the lower hole 8-7-12 of the lock cylinder, after the tumbler 9-2 is rotated to the position, the tumbler 9-2 is pulled out of the tumbler hole 8-9, the lock body contact 9-3 is separated from the lock body contact 8-6, the power supply to the lock body chip 8-10 is stopped, the motor 8-7-6 is reversed, the motor output shaft drives the strip-shaped coupling 8-7-7 to reverse, the strip-shaped coupling 8-7-7 drives the cylindrical limiting block 8-7-8 to reverse, the strip-shaped coupling 8-7-7 is in the vertical state, the cylindrical limiting hole 8-7-11 of the cylindrical limiting block 8-7-8 is not downward, the top end of the limiting cone 8-7-9 abuts against the metal cylindrical surface of the cylindrical limiting block 8-7-8, then the limiting cone 8-7-9 cannot release the limiting of the triangular limiting circular arc 8-13, so the lock cylinder 8-7 cannot be rotated to open the lock, and the two reset springs two 8-7-16 are automatically reset to compress the two elastic blocks 8-7-14 to the low position without the control of the motor driving force. This is the principle of the linkage control of the lock body chip 8-10 on the clutch mechanism, and the linkage control relationship principle of the clutch mechanism on the lock tongue 8-2.

[0038] Two lock body contacts 8-6 are provided on the lock cylinder 8-7 on the right end face of the lock body 8. The two lock body contacts 8-6 are connected to the lock body chip and provide power to the lock body chip. A pin hole 8-9 is provided on the lock cylinder on the same side of the two lock body contacts. The front end of the unlocking body 9 is provided with a forward-protruding pin 9-2 that is inserted into and cooperates with the pin hole 8-9 in the lock body. On one side of the pin 9-2, there is an unlocking body contact 9-3 that contacts and cooperates with the lock body contacts 8-6. The unlocking body 9 also contains a battery and a controller, wherein the controller includes a communication unit, a Bluetooth device, a storage unit, a control chip, an identification unit, and a buzzer. The battery powers the unlocking body contacts 9-3 and the controller. When the battery is powered, the control chip in the controller connects to and controls the communication unit, Bluetooth device, storage unit, identification unit, and buzzer. The unlocking body 9 first connects to the backend operating system via the Bluetooth device. The Bluetooth device can also connect to the mobile APP. The mobile APP has the same functions as the backend operating system and obtains the corresponding authorization. The authorization includes the unlocking range and the effective time of the unlocking body. Because the valve opening time during the winter heating season is generally very short, concentrated within one or two weeks to complete the valve opening operation for paying users, the effective time of authorization is limited to this period. At other times, the unlocking body is in a blocked state, thereby achieving the purpose of authorization management for on-site valve opening personnel. If there are special requirements or special time periods that require additional valve opening, this is a low-probability event. In this case, temporary authorization for one day and specifying the authorization of specific points can complete the work. After the staff obtains authorization from the unlocking body, the authorization information is recorded in the storage unit. The pin 9-2 of the unlocking body 9 is inserted into the pin hole 8-9 of the lock body 8, and the two unlocking body contacts 9-3 of the unlocking body 9 are brought into contact with the two lock body contacts 8-6. The power in the battery is connected through the contact between the unlocking body contacts 9-3 and the lock body contacts 8-6 to power the lock body chip, thus activating the lock body chip and putting it into working state. At this time, the communication unit in the unlocking body 9 begins to communicate with the lock body chip. The identification unit in the unlocking body sends a signal to identify the position information in the lock body chip. When the identified position information is not within the authorization of this unlocking body, the honeycomb device emits a sound, and the lock body chip does not trigger the opening operation of the clutch mechanism. Therefore, the pin hole 8-9 cannot be turned by the pin 9-2, and the bolt 8-2 remains in a limited and locked state.When the identification signal emitted by the identification unit interacts with the lock body chip through the communication unit, if the lock body chip information at this point is within the authorized scope of this unlocking body, the buzzer emits a different sound. At the same time, the lock body chip trigger signal program controls the clutch mechanism to perform the opening operation. At this time, the clutch mechanism releases the lock of the rotating pin hole 8-9, and the rotating pin 9-2 of the unlocking body 9 can rotate in the rotating pin hole 8-9, which in turn drives the lock ball to retract from the spherical groove 1-2 on the inner wall of the valve body. The storage chip in the unlocking body 9 records the successful operation status. When returning to the back-end monitoring room, this information will be transmitted back to the back-end monitoring system platform or mobile APP via Bluetooth. In the monitoring software program, the information at this point is the valve-opening heating status. Back-end staff can monitor whether the valve-opening heating status of a user is correct based on the user's payment status. If the user has paid, it is the correct heating status; if the user has not paid, it is the incorrect heating status. This can effectively manage the on-site staff of the heating company. Then, the on-site staff used their other hand to pull the lock body 8 out of the pipe opening on the right side of the valve body 1, inserted a special key into the valve stem 6, and turned the valve stem to open the heating valve. Then, they pulled out the valve stem key from valve stem 6, inserted the lock body 8 into the pipe opening on the right side of the valve body 1, reversed the rotating pin 9-2 of the unlocking body 9, ejected the lock ball into the limiting device of the valve body 1, and then pulled out the unlocking body 9 from the rotating pin hole 8-9. The unlocking body contact 9-3 separated from the lock body contact 8-6, and the lock body chip lost power input and was in a passive state. The lock body chip then automatically executed the program to control the clutch mechanism to perform a closing action. This closing action pressed the pin in place. The pin hole 8-9 locks and limits the locking pin hole, which in turn limits the locking ball and prevents it from retracting. The limiting device in valve body 1 then locks and limits the locking tongue 8-2 in the lock body, thereby locking valve body 1 and lock body 8 together. Unauthorized unlocking body 9 or other keys cannot turn the pin hole 8-9, and therefore cannot release the limitation of the pin hole 8-9 on the locking tongue 8-2, and cannot separate lock body 8 from valve body 1.

[0039] Example 2, refer to Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figures 9-20The heating system uses a controllable valve. A ring-shaped boss 1-3 is located on the inner wall of the pipe opening on the right side of the valve body 1. This boss 1-3 serves as a limiting device. Two symmetrical locking tongue holes are located on the outer wall of the cylindrical outer shell 8-1 on the left side of the lock body 8. Each locking tongue hole contains a locking tongue 8-2, which is a spherical locking ball. The locking ball can pop out and retract within the locking ball hole. The locking ball is linked to the rotating needle hole 8-9. The rotating needle 9-2 of the unlocking body 9 is inserted into the rotating needle hole 8-9. The rotation and reversal of the rotating needle 9-2 control the pop-out and retraction of the locking ball. A clutch mechanism is linked to the rotating needle hole 8-9, and the opening and closing of the clutch mechanism are controlled by the program of the lock body chip. The unlocking body 9 also includes unlocking body contacts 9-3, a controller, and a battery. The rotating pin 9-2 of the unlocking body 9 is inserted into the rotating pin hole 8-9 of the lock body 8. The unlocking body contact 9-3 contacts the lock body contact 8-6. The battery supplies power to the lock body chip. The controller of the unlocking body 9 communicates with the lock body chip. When the unlocking body 9 is authorized and can match the lock body chip in the lock body 8, the lock body chip program controls the opening of the clutch mechanism. The clutch mechanism releases the limit on the rotating pin hole 8-9, allowing the rotating pin 9-2 to turn. After the rotating pin 9-2 turns, the lock ball is released from the lock. The tongue retracts into the hole, and the lock body 8 is inserted into the tube on the right side of the valve body 1. The lock ball is placed inside the annular boss 1-3. Then, the rotating needle 9-2 is rotated in the opposite direction to eject the lock ball. The unlocking body 9 is pulled out, and the unlocking body contact 9-3 separates from the lock body contact 8-6. The lock body chip loses power, and the program automatically controls the clutch mechanism. The clutch mechanism executes the closing command and locks the limiting rotating needle hole 8-9, so that the rotating needle hole cannot rotate. Therefore, the lock ball is locked and cannot retract. The annular boss 1-3 locks and limits the lock ball, so the lock body 8 and the valve body 1 are locked together. To activate the valve for heating, insert the needle 9-2 into the needle hole 8-9 of the lock body. The unlocking body 9 matches the lock body 8, and the unlocking body contact 9-3 contacts the lock body contact 8-6. The unlocking body battery supplies power to the lock body chip through the unlocking body contact 9-3. The lock body chip program controls the clutch mechanism, opening the clutch mechanism's limit on the needle hole 8-9. The needle 9-2 can then be turned, causing the lock ball to retract from the bolt hole. The lock body 8 can then be pulled out of the valve body 1, and the valve stem key can be used to operate the valve stem to activate the heating operation.

[0040] Example 3, refer to Appendix Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figures 13-20The heating system uses a controllable valve. A 90-degree limiting block 7-1 is fixedly installed at the upper right corner of the leftmost end of the inner wall of the right-side pipe opening of the valve body 1. The 90-degree limiting block 7-1 is a 90-degree sector shape. The arc end of the sector shape of the 90-degree limiting block 7-1 is fixedly connected to the inner wall of the valve body 1. The center of the 90-degree limiting block 7-1 is passed through by the rightmost end of the valve stem 6. The 90-degree limiting block 7-1 is close to but does not contact the outer edge of the valve stem 6; otherwise, it would affect the rotation of the valve stem 6. Turning the valve stem 6 with a special valve stem key can drive the ball core 4 to rotate, thereby controlling the flow and closing of fluid within the valve body 1. Because the fully open and fully closed angles of the ball core 4 are exactly 90 degrees apart when the valve stem 6 is turned, without the 90-degree limit stop 7-1, the position of the ball core 4 is difficult to control when the valve stem 6 is turned, easily resulting in interference or under-interference. This can lead to the ball core 4 not being fully open or fully closed. When it is not fully open, it will affect the heating effect. If it is not fully closed, during the non-heating season, fluid in the heating pipes may flow back into the user's indoor heating pipes, causing flooding in some homes. Therefore, a specially designed valve stem key is used in conjunction with the 90-degree limit stop 7-1 to control the opening and closing of the valve stem 6, ensuring that the ball core 4 is fully open and fully closed. The position of the 90-degree limit stop 7-1 is not limited to the upper right corner of the inner wall of the right side of the valve body 1. Regardless of its position, as long as it can limit the valve stem key to turn the valve stem 6 so that the ball core 4 only rotates 90 degrees, it is sufficient. The specially designed valve stem key will not be described in detail here, as it is not within the scope of this application. A limiting device 7-2 is provided on the inner wall of the right side of the valve body 1. The limiting device can be a spherical groove or a ring-shaped boss. A latch 8-2 ​​is provided on the lock body, and a latch hole is provided on the outer wall of the left cylindrical surface of the lock body 8. The latch 8-2 ​​consists of two symmetrical locking balls that can pop out and retract within the latch hole. The unlocking body 9 contains a battery, a controller, unlocking body contacts 9-3, and a rotating needle 9-2. The lock body 8 contains lock body contacts 8-6, a lock body chip, a clutch mechanism, and a rotating needle hole 8-9. For the locking and limiting relationships between them, please refer to Embodiment 1 and Embodiment 2.

[0041] Example 4, see attached document Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figures 13-20The heating system uses a controllable valve, with a metal locking seat 7 integrally molded into the pipe opening on the right side of the valve body 1. If the valve body 1 is directly connected to the locking body 8, since the valve body 1 is made of rubber and plastic and the locking body 8 is generally made of metal, their long locking time will affect their service life. However, by fixing the valve body 1 and the locking seat 7 as one piece, with the metal locking body 8 inserted into the locking seat 7 for locking, the service life of the entire valve body structure will be extended. A fan-shaped 90-degree limiting block 7-1 is fixedly installed at the upper right corner of the inner wall at the leftmost end of the lock seat 7. The arc end of the fan-shaped limiting block 7-1 is fixedly connected to the inner wall of the lock seat 7. The center of the 90-degree limiting block 7-1 is passed through by the rightmost end of the valve stem 6. The 90-degree limiting block 7-1 is close to but does not contact the outer edge of the valve stem 6, otherwise it would affect the rotation of the valve stem. A limiting device 7-2 is provided on the inner wall of the lock seat 7. The limiting device 7-2 can be a spherical groove, a ring-shaped boss, or other forms of limiting block. A lock tongue 8-2 is provided on the lock body 8. A lock tongue hole is provided on the outer wall of the cylindrical outer shell 8-1 on the left side of the lock body 8. The lock tongue 8-2 consists of two symmetrical lock beads, or multiple lock beads, or a protrusion, as long as it can perform the function of limiting and locking. The lock ball can pop out and retract in the bolt hole. The unlocking body 9 contains a battery, controller, unlocking body contacts 9-3, and a rotating pin 9-1. The lock body 8 contains lock body contacts 8-6, a lock body chip, a clutch mechanism, and a rotating pin hole 8-9. On the left side of the cylindrical outer shell 8-1 of the lock body 8, there are two symmetrical, left-protruding 90-degree arc-shaped limiting pieces 8-3. The angle between the extension lines of the two side edges of each 90-degree arc-shaped limiting piece 8-3 towards the center is 90 degrees. The 90-degree limiting block 7-1 on the lock seat 7 fits precisely in the space between the two 90-degree arc-shaped limiting pieces 8-3. In other words, opening the rotating pin hole 8-9 to limit the bolt 8-2, allowing the bolt 8-2 to retract, is equivalent to inserting the lock body 8 into the lock seat 7. The rightmost protruding part of the cylindrical outer shell 8-1 of the left lock body 8 is engaged and limited on the end face of the right side opening of the lock seat 7. The two symmetrical 90-degree arc-shaped limiting plates 8-3 protruding to the left from the front end of the left cylinder of the lock body 8 have one side edge of the upper part of the 90-degree arc-shaped limiting plate 8-3 abutting against the right side of the vertical straight edge of the fan-shaped 90-degree limiting block 7-1, and the other side edge of the upper part of the 90-degree arc-shaped limiting plate 8-3 abutting against the lower part of the horizontal straight edge of the fan-shaped 90-degree limiting block 7-1.Since the 90-degree limiting stop 7-1 is fixed on the lock base 7, it is positioned between the two 90-degree arc-shaped limiting plates 8-3. Without the 90-degree limiting stop 7-1 and the 90-degree arc-shaped limiting plates 8-3, because the lock cylinder part inside the lock body 8 and the cylindrical outer shell 8-1 of the lock body 8 are separate, when the rotating needle 9-2 can rotate, although the rotating needle hole 8-9 releases the limiting of the bolt 8-2, the lock ball still requires a certain amount of force to retract from the bolt hole of the cylindrical outer shell 8-1. Generally, one hand needs to turn the rotating needle 9-2 while the other hand applies some force to support the lock body 8 to allow the lock cylinder 8-7 inside the lock body 8 to retract. The lock ball slides out of the bolt hole of the cylindrical outer shell 8-1 of the lock body. With the 90-degree limit stop 7-1 and two 90-degree arc-shaped limit plates 8-3 in place, when one hand turns the rotating needle 9-2, the cylindrical outer shell 8-1 of the lock body 8 remains stationary after the 90-degree limit stop 7-1 blocks the 90-degree arc-shaped limit plates 8-3. Only the lock cylinder 8-7 inside the lock body 8, along with the bolt 8-2, slides out of the bolt hole on the cylindrical outer shell 8-1, thus releasing the locking limit between the lock body 8 and the lock seat 7, enabling the unlocking operation. At this point, one hand can pull the lock body 8 out of the lock seat 7, eliminating the need for two hands. Then, the valve stem 6 and the ball core 4 are controlled to open and close. The lock body 8 is also provided with lock body contacts 8-6, lock body chip, clutch mechanism and rotating needle hole 8-9. The unlocking body 9 is provided with battery, controller, unlocking body contacts 9-3 and rotating needle 9-2. For the locking limit relationship between them, please refer to Embodiment 1 and Embodiment 2.

[0042] In embodiment five, the limiting device provided on the valve body can be a spherical groove or an annular boss. If a lock seat 7 is provided inside the pipe opening at the right end of the valve body 1, the limiting device 7-2 provided on the lock seat 7 can also be a spherical groove 1-2 or an annular boss 1-3, etc. The locking tongue 8-2 on the lock body can be multiple locking balls, or it can be a combination of a tightening ring, a protrusion, etc. that can play a limiting role. These should all be within the scope of protection of this application.

[0043] Example 6: The main technical solution of this application is to set a limiting device on the valve body and to provide a locking tongue, a locking chip, and a clutch mechanism on the lock body. If we simply interchange their positions—that is, to set the locking tongue, chip, and clutch mechanism on the valve body and the limiting device on the lock body or lock seat—this technical solution is essentially the same as the main idea of ​​this application, and solves the same problem; only the positions of the same structures are interchanged. These are all things that those skilled in the art can easily conceive of. To avoid wasting resources and preventing the generation of abnormal applications, we will not apply for additional patents for these solutions. Products with the features described above should also be within the scope of protection of this application. For the limiting and locking relationship between them, please refer to Examples 1 and 2.

[0044] In Example 7, the lock body 8 no longer has a rotating pin hole. The clutch mechanism is directly linked to the lock tongue. After the authorized unlocking body communicates with the lock body, the lock body chip inside the lock body controls the opening operation of the clutch mechanism through the program. The clutch mechanism directly releases the lock tongue 8-2 from the limiting device 7-2 of the valve body 1, and then the lock body 8 can be directly pulled out of the valve body 1 to control the opening and closing of the ball core 4.

[0045] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A controllable valve for a heating system, comprising a valve body (1), characterized in that, A limiting device (7-2) is provided on the valve body (1). The limiting device (7-2) limits the lock tongue (8-2) on the lock body (8). The lock body (8) is provided with a lock body chip (8-10) and a clutch mechanism. The clutch mechanism is linked to the lock tongue (8-2). The lock body chip (8-10) controls the opening and closing of the clutch mechanism. The unlocking body (9) is provided with a controller. The controller communicates with the lock body chip (8-10) on the lock body (8).

2. The controllable valve for a heating system according to claim 1, characterized in that, Two lock body contacts (8-6) are provided on the right end face of the lock cylinder (8-7) of the lock body (8). The two lock body contacts (8-6) are connected to the lock body chip (8-10). A rotating pin hole (8-9) is provided on the same side of the two lock body contacts (8-6). The clutch mechanism is linked to the rotating pin hole (8-9). The rotating pin hole (8-9) is linked to the lock tongue (8-2).

3. The controllable valve for a heating system according to claim 2, characterized in that, The unlocking body (9) is equipped with a battery and a controller, wherein the controller includes a communication unit, a Bluetooth device, a storage unit, a control chip, an identification unit and a buzzer. The battery powers the controller, and the control chip in the controller is connected to and controls the communication unit, the Bluetooth device, the storage unit, the identification unit and the buzzer.

4. The controllable valve for a heating system according to claim 3, characterized in that, At the front end of the unlocking body (9), there is a forward-protruding pin (9-2) that is inserted into and cooperates with the pin hole (8-9) in the lock body. On one side of the pin (9-2), there is an unlocking body contact (9-3) that is in contact with the lock body contact (8-6). The battery is connected to the unlocking body contact (9-3).

5. The controllable valve for a heating system according to claim 1, characterized in that, A 90-degree limiting block (7-1) is fixedly connected to the inner wall of the right side of the lock body (8). The 90-degree limiting block (7-1) is a 90-degree fan shape. The arc end of the fan shape of the 90-degree limiting block (7-1) is fixedly connected to the inner wall of the valve body (1). The center of the 90-degree limiting block (7-1) is passed through by the rightmost end of the valve stem (6).

6. The controllable valve for a heating system according to claim 5, characterized in that, Two symmetrical 90-degree arc-shaped limiting pieces (8-3) protruding to the left are provided on the outer edge of the cylindrical outer shell (8-1) of the lock body (8). The angle between the extension lines of the two side edges of each 90-degree arc-shaped limiting piece (8-3) to the center is 90 degrees. The 90-degree limiting block (7-1) is stuck in the space between the two 90-degree arc-shaped limiting pieces (8-3).

7. The controllable valve for a heating system according to claim 1, characterized in that, A metal lock seat (7) is integrally molded and connected to the pipe opening on the right side of the valve body (1). A fan-shaped 90-degree limiting block (7-1) is fixed at the upper right corner of the inner wall of the left end of the lock seat (7). The 90-degree limiting block (7-1) is a 90-degree fan shape. The arc end of the fan shape of the 90-degree limiting block (7-1) is fixedly connected to the inner wall of the lock seat (7). The center of the 90-degree limiting block (7-1) is passed through by the rightmost end of the valve stem (6). A limiting device (7-2) is provided on the inner wall of the lock seat (7). The limiting device (7-2) is a spherical groove or The lock seat (7) has a ring-shaped protrusion. The limiting device (7-2) of the lock seat (7) locks and limits the latch (8-2) on the lock body (8). The latch (8-2) consists of multiple lock beads or protrusions. On the left side of the cylindrical outer shell (8-1) of the lock body (8), there are two symmetrical 90-degree arc-shaped limiting pieces (8-3) protruding to the left. The angle between the extension lines of the two side edges of each 90-degree arc-shaped limiting piece (8-3) to the center is 90 degrees. The 90-degree limiting block (7-1) is limited and locked in the space between the two 90-degree arc-shaped limiting pieces (8-3).

8. The controllable valve for a heating system according to claim 4, characterized in that, A limiting device (7-2) is provided on the inner wall of the valve body (1). The limiting device (7-2) is a ring-shaped boss. A lock tongue is provided on the lock cylinder (8-7) of the lock body (8). The lock tongue (8-2) consists of two symmetrically arranged lock beads. A lock tongue hole is provided on the cylindrical outer shell (8-1) of the lock body. The lock beads pop out and retract in the lock tongue hole. The ring-shaped boss limits the lock beads.

9. The controllable valve for a heating system according to claim 4, characterized in that, The lock body chip (8-10) in the lock body (8) records the location information of the heating user. After the lock body chip (8-10) is powered on, the control chip in the unlocking body (9) controls the communication unit to communicate with the lock body chip. The control chip controls the identification unit to identify the lock body chip, and the storage unit stores the operation information.

10. The controllable valve for a heating system according to claim 4, characterized in that, The Bluetooth device in the unlocking body (9) is connected to the background monitoring system platform, and the Bluetooth device in the unlocking body (9) is connected to the mobile APP.

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