Heat supply engineering pipeline valve device

Abstract

The utility model relates to the related technical field of heat supply engineering, in particular to a heat supply engineering pipeline valve device which comprises a valve body, a sealing mechanism is arranged on the inner side surface of the valve body, and a transmission mechanism is arranged on the upper surface of a second flange. According to the heat supply engineering pipeline valve device, through the arrangement of the sealing mechanism, during use, the valve is matched with a square clamping block of the transmission mechanism through a square clamping groove in the top of the rotating shaft, manual or automatic control is achieved, and when the valve is opened, the transmission mechanism drives the rotating shaft to enable a sealing ball to rotate, a through pipe is aligned with a pipeline channel, and a medium circulates; the rotating shaft drives the large transmission shaft, the small transmission shaft rotates through the transmission belt, then the transmission rod, the threaded rod and the sealing gate are driven to ascend without obstructing medium flow, when the valve is closed, the rotating shaft rotates reversely, the sealing ball blocks the medium, meanwhile, the sealing gate descends, and the double-sealing structure effectively avoids medium leakage, improves the heat supply efficiency and reduces the energy cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heating engineering, especially to a heating engineering pipeline valve device. BACKGROUND

[0002] Heating is mainly for northern cities, and the main measure adopted in China at present is central heating, that is, in a larger area, using centralized heat source to supply production, life and heating heat to factories and civil buildings in the area, and the heating engineering provides stable and comfortable heating guarantee for various buildings, and the pipeline valve is a key component for controlling the flow of heating medium and adjusting the pressure and flow of the heating system, therefore, a heating engineering pipeline valve device is particularly needed.

[0003] However, the existing valve device mostly adopts a single sealing structure, and the sealing element is prone to aging and deformation during long-term operation, leading to sealing failure and leakage of the heating medium, which not only causes a large amount of heat energy loss, reduces the heating efficiency, increases the energy cost, but also may cause damage to the surrounding facilities. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a heating engineering pipeline valve device to solve the problem of the existing valve device, most of which adopts a single sealing structure, and the sealing element is prone to aging and deformation during long-term operation, leading to sealing failure and leakage of the heating medium, which not only causes a large amount of heat energy loss, reduces the heating efficiency, increases the energy cost, but also may cause damage to the surrounding facilities.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a heating engineering pipeline valve device, comprising a valve body, one side surface of the valve body is fixedly connected with a pipeline, one side surface of the pipeline is fixedly connected with a first flange, the upper surface of the valve body is fixedly connected with a connecting pipe, the upper surface of the valve body is fixedly connected with a connecting shell, the upper surface of the connecting pipe is fixedly connected with a second flange, the inner side surface of the valve body is provided with a sealing mechanism, and the upper surface of the second flange is provided with a transmission mechanism.

[0006] The sealing mechanism comprises a bottom shaft, a sealing ball, a through pipe, a rotating shaft, a square clamping groove, a fixing ring, a sealing ring, a large transmission shaft, a transmission belt, a small transmission shaft, a transmission rod, a threaded rod, a sealing gate, a limiting block, a sealing strip, a connecting block, a limiting groove, a fixing block and a sealing groove, the inner side surface of the valve body is rotationally connected with the bottom shaft, the upper surface of the bottom shaft is fixedly connected with the sealing ball, the outer side surface of the sealing ball is provided with the through pipe, the upper surface of the sealing ball is fixedly connected with the rotating shaft, the upper surface of the rotating shaft is provided with the square clamping groove, the outer side surface of the rotating shaft is rotationally connected with the fixing ring, the outer side surface of the fixing ring is fixedly connected with the sealing ring, the outer side surface of the rotating shaft is fixedly connected with the large transmission shaft, the outer side surface of the large transmission shaft is attached with the transmission belt, the inner side surface of the transmission belt is attached with the small transmission shaft, the lower surface of the small transmission shaft is fixedly connected with the transmission rod, the lower surface of the transmission rod is fixedly connected with the threaded rod, the outer side surface of the threaded rod is threadedly connected with the sealing gate, the side surface of the sealing gate is fixedly connected with the limiting block, the outer side surface of the limiting block is slidingly connected with the connecting block, the side surface of the connecting block is provided with the limiting groove, the upper surface of the connecting block is fixedly connected with the fixing block, and the inner side surface of the valve body is provided with the sealing groove.

[0007] Preferably, the pipeline is symmetrically arranged with the central axis of the valve body, the connecting shell is symmetrically arranged with the central axis of the connecting pipe, and the second flange is provided with two groups.

[0008] Preferably, the outer side dimension of the sealing ball is consistent with the inner side dimension of the valve body, and the transmission belt is provided with two groups.

[0009] Preferably, the upper surface of the transmission rod is rotationally connected with the connecting shell, and the lower surface of the threaded rod is rotationally connected with the valve body.

[0010] Preferably, the outer side dimension of the limiting block is consistent with the inner side dimension of the limiting groove, and the connecting block is symmetrically arranged with the central axis of the sealing gate.

[0011] Preferably, the outer side dimension of the sealing strip is consistent with the inner side dimension of the sealing groove, and the sealing strip is provided with two groups on the lower surface of the sealing gate.

[0012] Preferably, the transmission mechanism comprises a transmission shell, a power shaft, a square clamping block, a hand wheel, a large gear, a small gear, a motor shaft and a servo motor, the upper surface of the second flange is fixedly connected with the transmission shell, the inner side surface of the transmission shell is rotationally connected with the power shaft, the lower surface of the power shaft is fixedly connected with the square clamping block, the upper surface of the power shaft is fixedly connected with the hand wheel, the outer side surface of the power shaft is fixedly connected with the large gear, the outer side surface of the large gear is engaged with the small gear, the inner side surface of the small gear is penetrated by the motor shaft, and the upper surface of the motor shaft is fixedly connected with the servo motor.

[0013] Preferably, the inner side size of the square block and the inner side size of the square slot are matched, and the pinion is provided with multiple groups on the outer side surface of the gear wheel.

[0014] Compared with the prior art, the heat supply engineering pipeline valve device has the beneficial effects that: the sealing mechanism is arranged, in use, the top of the rotating shaft is provided with a square slot matched with a square block of the transmission mechanism to realize manual or automatic control, when the square block is rotated by the transmission mechanism, the rotating shaft rotates, the outer side of the sealing ball is provided with a through pipe, when the valve needs to be opened, the sealing ball rotates to align the through pipe with the passage of the pipeline, medium such as hot water or steam can smoothly pass through, meanwhile, the large transmission shaft is fixed on the outer side of the rotating shaft, connected with the small transmission shaft through the transmission belt, when the sealing ball rotates, the large transmission shaft drives the small transmission shaft to rotate through the transmission belt, thereby driving the transmission rod and the threaded rod to move, according to the principle of threaded transmission, when the threaded rod rotates, the sealing gate moves up and down along the axial direction of the threaded rod, when the sealing gate rises, the medium can flow freely, meanwhile, the limiting block slides in the limiting groove to ensure that the sealing gate remains stable during the lifting process and does not deviate or jam, the fixing block is fixed above the connecting block to fix the connecting block on the inner side of the valve body, ensuring that the movement track of the sealing gate is more stable, the sealing ring is fixed on the outer side of the fixed ring to seal the gap between the rotating shaft and the connecting pipe and prevent medium leakage, when the valve needs to be closed, the transmission mechanism drives the rotating shaft to rotate reversely to rotate the sealing ball to a certain degree, so that the through pipe is perpendicular to the passage of the pipeline to block the flow of the medium, meanwhile, the sealing gate can be lowered and matched with the sealing groove to form a second sealing to ensure that the sealing gate is completely closed, the sealing strip is fixed below the sealing gate and matched with the sealing groove to form a tight seal, further enhancing the sealing performance of the valve, the double sealing structure makes the sealing effect of the sealing member better, and does not cause medium leakage during long-term use, improving the heat supply efficiency and reducing energy costs. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a side view appearance structure schematic diagram of the utility model;

[0016] Figure 2 It is a cross section appearance structure schematic diagram of the utility model;

[0017] Figure 3 It is a sealing ball and through pipe mutual cooperation structure schematic diagram of the utility model;

[0018] Figure 4 It is a sealing gate and sealing strip mutual cooperation structure schematic diagram of the utility model;

[0019] Figure 5 It is a connecting shell and transmission rod mutual cooperation structure schematic diagram of the utility model;

[0020] Figure 6 The utility model discloses a transmission mechanism structure schematic view.

[0021] In the figure: 1, valve body;2, pipeline;3, first flange;4, connecting pipe;5, connecting shell;6, second flange;7, sealing mechanism;701, bottom shaft;702, sealing ball;703, through pipe;704, rotating shaft;705, square clamping groove;706, fixed ring;707, sealing ring;708, big transmission shaft;709, transmission belt;710, small transmission shaft;711, transmission rod;712, threaded rod;713, sealing gate;714, limit block;715, sealing strip;716, connecting block;717, limit slot;718, fixed block;719, sealing groove;8, transmission mechanism;801, transmission shell;802, power shaft;803, square clamping block;804, hand wheel;805, big gear;806, pinion;807, motor shaft;808, servo motor. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the utility model.

[0023] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: a heating engineering pipeline valve device, including valve body 1, the side surface of valve body 1 is fixedly connected with pipeline 2, the side surface of pipeline 2 is fixedly connected with first flange 3, the upper surface of valve body 1 is fixedly connected with connecting pipe 4, the upper surface of valve body 1 is fixedly connected with connecting shell 5, the upper surface of connecting pipe 4 is fixedly connected with second flange 6, the inner side surface of valve body 1 is provided with sealing mechanism 7, the upper surface of second flange 6 is provided with transmission mechanism 8;

[0024] The sealing mechanism 7 comprises a bottom shaft 701, a sealing ball 702, a through pipe 703, a rotating shaft 704, a square clamping groove 705, a fixed ring 706, a sealing ring 707, a large transmission shaft 708, a transmission belt 709, a small transmission shaft 710, a transmission rod 711, a threaded rod 712, a sealing gate 713, a limiting block 714, a sealing strip 715, a connecting block 716, a limiting groove 717, a fixed block 718 and a sealing groove 719, the inner side surface of the valve body 1 is rotationally connected with the bottom shaft 701, the upper surface of the bottom shaft 701 is fixedly connected with the sealing ball 702, the outer side surface of the sealing ball 702 is provided with the through pipe 703, the upper surface of the sealing ball 702 is fixedly connected with the rotating shaft 704, the upper surface of the rotating shaft 704 is provided with the square clamping groove 705, the outer side surface of the rotating shaft 704 is rotationally connected with the fixed ring 706, the outer side surface of the fixed ring 706 is fixedly connected with the sealing ring 707, the outer side surface of the rotating shaft 704 is fixedly connected with the large transmission shaft 708, the outer side surface of the large transmission shaft 708 is attached with the transmission belt 709, the inner side surface of the transmission belt 709 is attached with the small transmission shaft 710, the lower surface of the small transmission shaft 710 is fixedly connected with the transmission rod 711, the lower surface of the transmission rod 711 is fixedly connected with the threaded rod 712, the outer side surface of the threaded rod 712 is threadedly connected with the sealing gate 713, one side surface of the sealing gate 713 is fixedly connected with the limiting block 714, the outer side of the limiting block 714 is slidingly connected with the connecting block 716, one side surface of the connecting block 716 is provided with the limiting groove 717, the upper surface of the connecting block 716 is fixedly connected with the fixed block 718, the inner side surface of the valve body 1 is provided with the sealing groove 719, through the arrangement of the bottom shaft 701, the sealing ball 702, the through pipe 703, the rotating shaft 704, the square clamping groove 705, the fixed ring 706, the sealing ring 707, the large transmission shaft 708, the transmission belt 709, the small transmission shaft 710, the transmission rod 711, the threaded rod 712, the sealing gate 713, the limiting block 714, the sealing strip 715, the connecting block 716, the limiting groove 717, the fixed block 718 and the sealing groove 719, in use, the top of the rotating shaft 704 is provided with the square clamping groove 705, which cooperates with the square clamping block 803 of the transmission mechanism 8 to realize manual or automatic control, when the square clamping block 803 is rotated by the transmission mechanism 8, the rotating shaft 704 rotates, the outer side of the sealing ball 702 is provided with the through pipe 703, when the valve needs to be opened, the sealing ball 702 rotates to align the through pipe 703 with the passage of the pipeline 2, and the medium such as hot water or steam can smoothly pass through, at the same time, the large transmission shaft 708 is fixedly connected with the outer side of the rotating shaft 704, and is connected with the small transmission shaft 710 through the transmission belt 709, when the sealing ball 702 rotates, the large transmission shaft 708 drives the small transmission shaft 710 to rotate through the transmission belt 709, thereby driving the transmission rod 711 and the threaded rod 712 to move, when the threaded rod 712 rotates, according to the principle of threaded transmission, the sealing gate 713 moves up and down along the axial direction of the threaded rod 712, when the sealing gate 713 rises, the medium can flow freely, at the same time,The limiting block 714 slides in the limiting groove 717 to ensure that the sealing gate 713 remains stable during lifting and does not deviate or jam. The fixing block 718 is fixed above the connecting block 716 to fix the connecting block 716 to the inner side of the valve body 1, ensuring that the movement trajectory of the sealing gate 713 is more stable. The sealing ring 707 is fixed to the outer side of the fixed ring 706 to seal the gap between the rotating shaft 704 and the connecting pipe 4, preventing medium leakage. When the valve needs to be closed, the transmission mechanism 8 drives the rotating shaft 704 to rotate the sealing ball 702 90 degrees in the opposite direction, making the through pipe 703 perpendicular to the passage of the pipeline 2, blocking the flow of medium, while driving the sealing gate 713 to descend and cooperate with the sealing groove 719 to form a second seal, ensuring that the sealing gate 713 is completely closed. The sealing strip 715 is fixed below the sealing gate 713 and cooperates with the sealing groove 719 to form a tight seal, further enhancing the sealing performance of the valve. Through the double sealing structure, the sealing effect of the sealing member is better, and the medium leakage is not caused during long-term use, improving the heating efficiency and reducing the energy cost.

[0025] Further, the pipeline 2 is symmetrically arranged with the central axis of the valve body 1, the connecting shell 5 is symmetrically arranged with the central axis of the connecting pipe 4, and the second flange 6 is provided with two groups. Through the arrangement of the pipeline 2 and the second flange 6, the first flange 3 is fixedly connected to one side surface of the pipeline 2 during use, and the first flange 3 can be connected with the heating pipeline, so that the valve can be fixed in the heating pipeline. The second flange 6 is provided with two groups, which can connect the transmission mechanism 8 and the sealing mechanism 7 with each other, so that the power transmission is more stable.

[0026] Further, the outer size of the sealing ball 702 matches the inner size of the valve body 1, and the transmission belt 709 is provided with two groups. Through the arrangement of the transmission belt 709, the transmission belt 709 connects the large transmission shaft 708 and the small transmission shaft 710 during use, and can synchronously drive the power of the rotating shaft 704 to the transmission rod 711. The surface of the large transmission shaft 708 is provided with two groups of transmission belts 709, and the two groups of transmission belts 709 can transmit power. The two groups of sealing gates 713 work at the same time, so that the sealing effect of the valve is better.

[0027] Further, the upper surface of the transmission rod 711 is rotationally connected with the connecting shell 5, and the lower surface of the threaded rod 712 is rotationally connected with the valve body 1. Through the arrangement of the transmission rod 711 and the threaded rod 712, the upper and lower ends of the transmission rod 711 and the threaded rod 712 are rotationally connected with the connecting shell 5 and the valve body 1 respectively during use. The transmission rod 711 can rotate in place, and the sealing gate 713 can move up and down through threaded transmission.

[0028] Further, the outer size of the limiting block 714 and the inner size of the limiting groove 717 are matched, the connecting block 716 is symmetrically arranged to seal the central axis of the gate 713, through the arrangement of the limiting block 714 and the limiting groove 717, in use, the limiting block 714 slides in the inner side of the limiting groove 717, the limiting groove 717 limits the limiting block 714, so that the sliding of the sealing gate 713 is more stable.

[0029] Further, the outer size of the sealing strip 715 and the inner size of the sealing groove 719 are matched, the sealing strip 715 is provided with two groups on the lower surface of the sealing gate 713, through the arrangement of the sealing strip 715 and the sealing groove 719, in use, the sealing strip 715 enters the inside of the sealing groove 719, fills into the sealing groove 719, forms a tight seal, and further enhances the sealing performance of the sealing gate 713.

[0030] Further, the transmission mechanism 8 comprises a transmission housing 801, a power shaft 802, a square clamping block 803, a hand wheel 804, a large gear 805, a pinion 806, a motor shaft 807 and a servo motor 808, the upper surface of the second flange 6 is fixedly connected with the transmission housing 801, the inner surface of the transmission housing 801 is rotatably connected with the power shaft 802, the lower surface of the power shaft 802 is fixedly connected with the square clamping block 803, the upper surface of the power shaft 802 is fixedly connected with the hand wheel 804, the outer surface of the power shaft 802 is fixedly connected with the large gear 805, the outer surface of the large gear 805 is meshed with the pinion 806, the inner surface of the pinion 806 is penetrated through by the motor shaft 807, the upper surface of the motor shaft 807 is fixedly connected with the servo motor 808, through the setting of the transmission housing 801, the power shaft 802, the square clamping block 803, the hand wheel 804, the large gear 805, the pinion 806, the motor shaft 807 and the servo motor 808, in use, the operator rotates the hand wheel 804, the rotation of the hand wheel 804 drives the power shaft 802 to rotate, the square clamping block 803 fixedly connected below the power shaft 802 rotates with the power shaft 802, the square clamping block 803 cooperates with the square clamping groove 705 at the top of the rotating shaft 704 to transmit power downward, thereby driving the sealing ball 702 and other components to rotate, realizing manual control of the opening or closing of the valve, or starting the servo motor 808 to drive the motor shaft 807 to rotate, the motor shaft 807 penetrates through the pinion 806, so the rotation of the motor shaft 807 drives the pinion 806 to rotate, the pinion 806 is meshed with the large gear 805, the rotation of the pinion 806 drives the large gear 805 to rotate, the large gear 805 is fixedly connected with the power shaft 802, the rotation of the large gear 805 drives the power shaft 802 to rotate, thereby making the square clamping block 803 below the power shaft 802 rotate, which can also transmit power to the related components below, realizing electric control of the valve, providing double protection for the operation of the valve, in some cases, such as power supply failure or the need for fine manual adjustment, manual control can be used, while in the normal automatic operation process, electric control can be used, improving the convenience and efficiency of operation, meeting the needs of different working scenes, and ensuring the reliable operation of the valve in the heating engineering system and the accurate control of the medium flow.

[0031] Further, the inner size of the square clamping block 803 and the inner size of the square clamping groove 705 are consistent, a plurality of groups of pinions 806 are arranged on the outer surface of the large gear 805, through the setting of the square clamping block 803 and the square clamping groove 705, in use, the square clamping block 803 enters the square clamping groove 705, the square clamping groove 705 limits the square clamping block 803, so that power can be transmitted downward.

[0032] Working principle: one side surface of pipeline 2 is fixedly connected with first flange 3, first flange 3 can be connected with heat supply pipeline, so that the valve can be fixed in the heat supply pipeline, second flange 6 is provided with two groups, through second flange 6, transmission mechanism 8 and sealing mechanism 7 can be connected with each other, power transmission is more stable, the operator rotates hand wheel 804, the rotation of hand wheel 804 drives power shaft 802 to rotate, square clamping block 803 fixedly connected below power shaft 802 rotates with power shaft 802, square clamping block 803 cooperates with square clamping groove 705 at the top of rotating shaft 704, power is transmitted downward, in turn drives sealing ball 702 and other components to rotate, realizes manual control of valve opening or closing, or starts servo motor 808, drives motor shaft 807 to rotate, motor shaft 807 penetrates small gear 806, so the rotation of motor shaft 807 drives small gear 806 to rotate, small gear 806 meshes with large gear 805, the rotation of small gear 806 drives large gear 805 to rotate, large gear 805 is fixedly connected with power shaft 802, the rotation of large gear 805 drives power shaft 802 to rotate, in turn makes square clamping block 803 below power shaft 802 rotate, power is also transmitted to the related components below, realizes electric control of the valve, provides double protection for the operation of the valve, in some cases, such as power supply failure or fine manual adjustment is needed, manual control can be used, while in the normal automatic operation process, electric control can be used, improves the convenience and efficiency of operation, meets the needs of different working scenes, ensures the reliable operation of the valve in the heat supply engineering and the accurate control of medium flow, the top of rotating shaft 704 is provided with square clamping groove 705, which cooperates with square clamping block 803 of transmission mechanism 8, realizes manual or automatic control, when transmission mechanism 8 drives square clamping block 803 to rotate, rotating shaft 704 rotates, the outside of sealing ball 702 is provided with through pipe 703, when the valve needs to be opened, sealing ball 702 rotates, makes through pipe 703 align with the passage of pipeline 2, medium such as hot water or steam can pass through smoothly, at the same time, large transmission shaft 708 is fixed outside rotating shaft 704, through transmission belt 709, small transmission shaft 710 is connected, when sealing ball 702 rotates, large transmission shaft 708 drives small transmission shaft 710 to rotate through transmission belt 709, in turn drives transmission rod 711 and threaded rod 712 to move, when threaded rod 712 rotates, according to the principle of threaded transmission, sealing gate 713 moves up and down along the axial direction of threaded rod 712, when sealing gate 713 rises, medium can flow freely, at the same time, limiting block 714 slides in limiting groove 717, ensures that sealing gate 713 remains stable during lifting, and deviation or jamming does not occur, fixed block 718 is fixed above connecting block 716, which is used for fixing connecting block 716 inside valve body 1, ensures that the movement track of sealing gate 713 is more stable, sealing ring 707 is fixed outside fixed ring 706, which is used for sealing the gap between rotating shaft 704 and connecting pipe 4,Prevent medium leakage, when the valve needs to be closed, the transmission mechanism 8 drives the rotating shaft 704 to rotate the sealing ball 702 in the opposite direction by 90 degrees, so that the through pipe 703 is perpendicular to the passage of the pipeline 2, and the flow of medium is blocked, at the same time, the sealing gate 713 can be driven to descend and cooperate with the sealing groove 719 to form a second sealing, ensure that the sealing gate 713 is completely closed, the sealing strip 715 is fixed below the sealing gate 713, cooperates with the sealing groove 719 to form a tight sealing, further enhances the sealing performance of the valve, through the double sealing structure, the sealing effect of the sealing piece is better, in the long-term use, also will not cause the leakage of medium, improves the heating efficiency, thereby reduces the energy cost.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A heating engineering pipe valve arrangement comprising a valve body (1), characterized in that: One side surface of the valve body (1) is fixedly connected with a pipeline (2), one side surface of the pipeline (2) is fixedly connected with a first flange (3), the upper surface of the valve body (1) is fixedly connected with a connecting pipe (4), the upper surface of the valve body (1) is fixedly connected with a connecting shell (5), the upper surface of the connecting pipe (4) is fixedly connected with a second flange (6), the inner side surface of the valve body (1) is provided with a sealing mechanism (7), the upper surface of the second flange (6) is provided with a transmission mechanism (8). The sealing mechanism (7) comprises a bottom shaft (701), a sealing ball (702), a through pipe (703), a rotating shaft (704), a square clamping groove (705), a fixed ring (706), a sealing ring (707), a large transmission shaft (708), a transmission belt (709), a small transmission shaft (710), a transmission rod (711), a threaded rod (712), a sealing gate (713), a limiting block (714), a sealing strip (715), a connecting block (716), a limiting groove (717), a fixed block (718) and a sealing groove (719), the inner side surface of the valve body (1) is rotatably connected with the bottom shaft (701), the upper surface of the bottom shaft (701) is fixedly connected with the sealing ball (702), the outer side surface of the sealing ball (702) is provided with the through pipe (703), the upper surface of the sealing ball (702) is fixedly connected with the rotating shaft (704), the upper surface of the rotating shaft (704) is provided with the square clamping groove (705), the outer side surface of the rotating shaft (704) is rotatably connected with the fixed ring (706), the outer side surface of the fixed ring (706) is fixedly connected with the sealing ring (707), the outer side surface of the rotating shaft (704) is fixedly connected with the large transmission shaft (708), the outer side surface of the large transmission shaft (708) is attached with the transmission belt (709), the inner side surface of the transmission belt (709) is attached with the small transmission shaft (710), the lower surface of the small transmission shaft (710) is fixedly connected with the transmission rod (711), the lower surface of the transmission rod (711) is fixedly connected with the threaded rod (712), the outer side surface of the threaded rod (712) is threadedly connected with the sealing gate (713), one side surface of the sealing gate (713) is fixedly connected with the limiting block (714), the outer side of the limiting block (714) is slidably connected with the connecting block (716), one side surface of the connecting block (716) is provided with the limiting groove (717), the upper surface of the connecting block (716) is fixedly connected with the fixed block (718), and the inner side surface of the valve body (1) is provided with the sealing groove (719).

2. A heating engineering pipe valve device according to claim 1, characterized in that The pipeline (2) is symmetrically arranged with the central axis of the valve body (1), the connecting shell (5) is symmetrically arranged with the central axis of the connecting pipe (4), and the second flange (6) is provided with two groups.

3. A heating engineering pipe valve device according to claim 1, characterized in that The outer side dimension of the sealing ball (702) is consistent with the inner side dimension of the valve body (1), and the transmission belt (709) is provided with two groups.

4. A heating engineering pipe valve device according to claim 1, characterized in that The upper surface of the transmission rod (711) is rotationally connected with the connecting shell (5), and the lower surface of the threaded rod (712) is rotationally connected with the valve body (1).

5. A heating engineering pipe valve device according to claim 1, characterized in that The outer size of the limiting block (714) is consistent with the inner size of the limiting groove (717), and the connecting block (716) is symmetrically arranged along the central axis of the sealing gate (713).

6. A heating engineering pipe valve device according to claim 1, characterized in that The outer size of the sealing strip (715) is consistent with the inner size of the sealing groove (719), and the sealing strip (715) is provided with two groups on the lower surface of the sealing gate (713).

7. A heating engineering pipe valve device according to claim 1, characterized in that The transmission mechanism (8) comprises a transmission shell (801), a power shaft (802), a square clamping block (803), a hand wheel (804), a large gear (805), a small gear (806), a motor shaft (807) and a servo motor (808), the upper surface of the second flange (6) is fixedly connected with the transmission shell (801), the inner surface of the transmission shell (801) is rotationally connected with the power shaft (802), the lower surface of the power shaft (802) is fixedly connected with the square clamping block (803), the upper surface of the power shaft (802) is fixedly connected with the hand wheel (804), the outer surface of the power shaft (802) is fixedly connected with the large gear (805), the outer surface of the large gear (805) is engaged with the small gear (806), the inner surface of the small gear (806) penetrates through the motor shaft (807), and the upper surface of the motor shaft (807) is fixedly connected with the servo motor (808).

8. A heating engineering pipe valve arrangement according to claim 7, characterized in that The inner size of the square clamping block (803) is consistent with the inner size of the square clamping groove (705), and the small gear (806) is provided with a plurality of groups on the outer surface of the large gear (805).

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