阅读说明：本技术 一种用于自来水管道运输的具有防冻功能的启闭装置 (A headstock gear that is used for having of running water pipeline transportation to prevent frostbite function ) 是由 蒙泽喜 于 2020-03-30 设计创作，主要内容包括：本发明涉及一种用于自来水管道运输的具有防冻功能的启闭装置,包括阀体、插板和两个连接管,所述插板设置在阀体上,所述插板与阀体匹配,所述插板与阀体的内壁滑动且密封连接,两个连接管同轴设置且分别设置在阀体的两侧,两个连接管通过阀体连通,所述阀体的顶部设置升降装置,所述升降装置驱动插板升降,所述插板位于连接管和升降装置之间,所述插板上设有通孔,所述通孔的轴线与连接管的轴线平行,所述通孔的孔径与连接管的内径相等,所述通孔内设有辅助机构和防冻机构,该用于自来水管道运输的具有防冻功能的启闭装置通过辅助机构提升了密封效果,不仅如此,还通过防冻机构实现了融冰的功能。(The invention relates to an opening and closing device with an antifreezing function for tap water pipeline transportation, which comprises a valve body, an inserting plate and two connecting pipes, wherein the inserting plate is arranged on the valve body, the inserting plate is matched with the valve body, the inserting plate is in sliding and sealing connection with the inner wall of the valve body, the two connecting pipes are coaxially arranged and are respectively arranged at two sides of the valve body, the two connecting pipes are communicated through the valve body, a lifting device is arranged at the top of the valve body, the lifting device drives the inserting plate to lift, the inserting plate is positioned between the connecting pipes and the lifting device, a through hole is arranged on the inserting plate, the axis of the through hole is parallel to the axis of the connecting pipes, the aperture of the through hole is equal to the inner diameter of the connecting pipes, an auxiliary mechanism and an antifreezing mechanism are arranged in the through hole, the opening and closing, and the function of melting ice is realized through an anti-freezing mechanism.)

1. The utility model provides an headstock gear that is used for water pipeline transport to have frostproofing function, includes valve body (1), picture peg (2) and two connecting pipes (3), picture peg (2) set up on valve body (1), picture peg (2) match with valve body (1), picture peg (2) slide and sealing connection with the inner wall of valve body (1), and two coaxial settings of connecting pipe (3) just set up respectively in the both sides of valve body (1), and two connecting pipes (3) communicate through valve body (1), the top of valve body (1) sets up elevating gear, elevating gear drive picture peg (2) go up and down, picture peg (2) are located between connecting pipe (3) and the elevating gear, be equipped with the through-hole on picture peg (2), the axis of through-hole is parallel with the axis of connecting pipe (3), the aperture of through-hole equals with the internal diameter of connecting pipe (3), the anti-freezing device is characterized in that an auxiliary mechanism and an anti-freezing mechanism are arranged in the through hole;

the auxiliary mechanism comprises two sealing discs (4) and two pushing assemblies, the sealing discs (4) are coaxially arranged with the through holes, the two sealing discs (4) are arranged at two ends in the through holes respectively, the diameter of each sealing disc (4) is equal to the inner diameter of each connecting pipe (3), the sealing discs (4) are in sliding and sealing connection with the inner walls of the through holes, a gap is formed between the two sealing discs (4), the two pushing assemblies are arranged on one sides, close to each other, of the two sealing discs (4) respectively, and the pushing assemblies drive the sealing discs (4) to move along the axial direction of the through holes;

the anti-freezing mechanism is positioned between the two sealing discs (4), and comprises a power assembly, a rotating shaft (5) and two anti-freezing assemblies, wherein the rotating shaft (5) is coaxial with the through hole, the power assembly is arranged at the middle end of the rotating shaft (5) and is in transmission connection with the rotating shaft (5), and the two anti-freezing assemblies are respectively arranged at two ends of the rotating shaft (5);

the subassembly that prevents frostbite includes rolling disc (6), friction ring (7) and two at least drive unit, rolling disc (6) and sealed dish (4) coaxial setting and install on axis of rotation (5), rolling disc (6) and sealed dish (4) laminating, friction ring (7) and the coaxial setting of through-hole, the internal diameter of friction ring (7) equals with the diameter of rolling disc (6), the external diameter of friction ring (7) is less than the aperture of through-hole, the inner wall fixed connection of friction ring (7) and through-hole, rolling disc (6) set up in friction ring (7) and with the inner wall sliding connection of friction ring (7), the drive assembly uses the axis of through-hole as center circumference evenly distributed on rolling disc (6), rolling disc (6) are connected with sealed dish (4) through the drive unit.

2. The opening and closing device with the antifreezing function for the tap water pipeline transportation according to claim 1, wherein the pushing assembly comprises at least two electromagnets (8), the electromagnets (8) are circumferentially and uniformly fixed on the inner wall of the through hole by taking the axis of the through hole as a center and abut against the sealing disc (4), and the sealing disc (4) is made of a magnet.

3. The opening and closing device with an anti-freezing function for the transportation of a tap water pipeline according to claim 1, wherein the transmission unit comprises a transmission rod (9), a connecting block (10), a spring (11) and a mounting hole, the mounting hole is formed in the rotating disc (6), the transmission rod (9) is parallel to the rotating shaft (5), the transmission rod (9) penetrates through the mounting hole and is slidably connected with the inner wall of the mounting hole, one end of the transmission rod (9) is fixed on the sealing disc (4), the connecting block (10) is fixed at the other end of the transmission rod (9), the spring (11) is located between the connecting block (10) and the rotating disc (6), and the connecting block (10) is connected with the rotating disc (6) through the spring (11).

4. The opening and closing device with antifreezing function for water piping transportation of claim 3, wherein both ends of the driving lever (9) are provided with chamfers.

5. The opening and closing device with an anti-freezing function for the transportation of tap water according to claim 1, wherein the power assembly comprises a driving motor (12), a driving bevel gear (13), a driven bevel gear (14) and a bearing (15), the driving motor (12) is fixed on the inner wall of the through hole and is in transmission connection with the driving bevel gear (13), the driven bevel gear (14) and the inner ring of the bearing (15) are both installed on the rotating shaft (5), the outer ring of the bearing (15) is fixedly connected with the inner wall of the through hole, and the driving bevel gear (13) is meshed with the driven bevel gear (14).

6. The opening and closing device with an anti-freezing function for a tap water pipeline transportation according to claim 5, wherein the driving motor (12) is a servo motor.

7. The opening and closing device with the anti-freezing function for the transportation of the tap water pipeline as claimed in claim 1, wherein the lifting device comprises a power motor (16), a screw rod (17), a sliding block (18), two push rods (19) and two connecting holes, the axis of the screw rod (17) is perpendicular to and intersected with the axis of the through hole and the axis of the connecting pipe (3) respectively, the power motor (16) is fixed at the top of the valve body (1) and is in transmission connection with the screw rod (17), the sliding block (18) is sleeved on the screw rod (17), the connecting part of the sliding block (18) and the screw rod (17) is provided with a thread matched with the screw rod (17), the push rods (19) and the screw rod (17) are parallel, the screw rod (17) is positioned between the two push rods (19), the push rods (19) are positioned between the sliding block (18) and the valve body (1), the connecting holes are arranged at the top of the valve body (1) and correspond to the push rods, the connecting hole is passed in push rod (19), slide and sealing connection of push rod (19) and the inner wall of connecting hole, the one end of push rod (19) is fixed on picture peg (2), the other end of push rod (19) is fixed on slider (18).

8. The opening and closing device with an anti-freezing function for transporting the tap water pipeline as claimed in claim 7, wherein the inner wall of the connecting hole is coated with sealing grease.

9. The opening and closing device with antifreezing function for water piping transportation of claim 7, wherein the screw rod (17) is coated with a lubricant.

10. The opening and closing device with antifreezing function for tap water pipeline transportation according to claim 1, wherein the valve body (1) is provided with an anticorrosive zinc coating.

Technical Field

The invention relates to the field of pipeline transportation, in particular to an opening and closing device with an anti-freezing function for tap water pipeline transportation.

Background

Pipeline transportation is a transportation mode for long-distance transportation of liquid and gas materials by using pipelines as transportation tools, is a transportation mode for transporting petroleum, coal and chemical products to markets from production places, and is a special component part for trunk transportation in a uniform transportation network. In some cases, pneumatic tubes may work similarly to compress gas to transport the solid chamber with cargo therein. Pipeline transportation of petroleum products is more expensive than water transportation, but is still less expensive than rail transportation. Most pipelines are used by their owners to transport their own products.

The gate valve is one of the common equipment in the water supply pipeline transportation, and current gate valve is in the use, and when the gate valve was in the closed condition, the picture peg received the water pressure effect for a long time and easily produced the deformation and influence the leakproofness, and so, when ambient temperature was lower, still easily resulted in the running water to freeze to make the unable normal transport running water of running water pipe.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the opening and closing device with the anti-freezing function for the transportation of the tap water pipeline is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an headstock gear that has frostproofing function for water pipeline transportation, includes valve body, picture peg and two connecting pipes, the picture peg sets up on the valve body, the picture peg matches with the valve body, the inner wall of picture peg and valve body slides and sealing connection, and two connecting pipes coaxial setting just set up respectively in the both sides of valve body, and two connecting pipes pass through the valve body intercommunication, the top of valve body sets up elevating gear, elevating gear drive picture peg goes up and down, the picture peg is located between connecting pipe and the elevating gear, be equipped with the through-hole on the picture peg, the axis of through-hole is parallel with the axis of connecting pipe, the aperture of through-hole equals with the internal diameter of connecting pipe, be equipped with complementary unit and frostproofing;

the auxiliary mechanism comprises two sealing discs and two pushing assemblies, the sealing discs and the through holes are coaxially arranged, the two sealing discs are respectively arranged at two ends in the through holes, the diameter of each sealing disc is equal to the inner diameter of each connecting pipe, the sealing discs are in sliding and sealing connection with the inner walls of the through holes, a gap is formed between the two sealing discs, the two pushing assemblies are respectively arranged at one sides, close to each other, of the two sealing discs, and the pushing assemblies drive the sealing discs to move along the axial direction of the through holes;

the anti-freezing mechanism is positioned between the two sealing discs and comprises a power assembly, a rotating shaft and two anti-freezing assemblies, the rotating shaft and the through hole are coaxially arranged, the power assembly is arranged at the middle end of the rotating shaft and is in transmission connection with the rotating shaft, and the two anti-freezing assemblies are respectively arranged at the two ends of the rotating shaft;

the subassembly that prevents frostbite includes rolling disc, friction ring and two at least drive unit, the rolling disc just installs in the axis of rotation with sealed coaxial setting of dish, the rolling disc laminates with sealed dish, friction ring and the coaxial setting of through-hole, the internal diameter of friction ring equals with the diameter of rolling disc, the external diameter of friction ring is less than the aperture of through-hole, the inner wall fixed connection of friction ring and through-hole, the rolling disc set up in the friction ring and with the inner wall sliding connection of friction ring, drive assembly uses the axis of through-hole as center circumference evenly distributed on the rolling disc, the rolling disc passes through drive unit and is connected with sealed dish.

Preferably, in order to push the sealing disc to move, the pushing assembly comprises at least two electromagnets, the electromagnets are circumferentially and uniformly fixed on the inner wall of the through hole by taking the axis of the through hole as a center and abut against the sealing disc, and the sealing disc is made of a magnet.

As preferred, in order to realize sealed rotation of dish, the transmission unit includes transfer line, connecting block, spring and mounting hole, the mounting hole sets up on the rolling disc, the transfer line is parallel with the axis of rotation, the transfer line pass the mounting hole and with the inner wall sliding connection of mounting hole, the one end of transfer line is fixed on sealed dish, the other end at the transfer line is fixed to the connecting block, the spring is located between connecting block and the rolling disc, the connecting block passes through the spring and is connected with the rolling disc.

Preferably, in order to facilitate the installation of the transmission rod, both ends of the transmission rod are provided with chamfers.

Preferably, in order to drive the rotating shaft to rotate, the power assembly comprises a driving motor, a driving bevel gear, a driven bevel gear and a bearing, the driving motor is fixed on the inner wall of the through hole and is in transmission connection with the driving bevel gear, the driven bevel gear and the inner ring of the bearing are both installed on the rotating shaft, the outer ring of the bearing is fixedly connected with the inner wall of the through hole, and the driving bevel gear is meshed with the driven bevel gear.

Preferably, the drive motor is a servo motor in order to increase the drive force of the drive motor.

As preferred, in order to realize the removal of picture peg, elevating gear includes motor power, lead screw, slider, two push rods and two connecting holes, the axis of lead screw is perpendicular and crossing with the axis of through-hole and connecting pipe respectively, motor power fixes at the top of valve body and is connected with the lead screw transmission, the slider cover is established on the lead screw, the slider be equipped with the screw thread that matches with the lead screw with the junction of lead screw, the push rod is parallel with the lead screw, the lead screw is located between two push rods, the push rod is located between slider and the valve body, the connecting hole sets up at the top of valve body and with the push rod one-to-one, the push rod passes the connecting hole, the inner wall slip and sealing connection of push rod and connecting hole, the one end of push rod is fixed on the picture peg.

Preferably, in order to reduce a gap between the push rod and an inner wall of the coupling hole, the inner wall of the coupling hole is coated with a sealing grease.

Preferably, the screw is coated with a lubricating oil in order to reduce the frictional force between the screw and the slider.

Preferably, in order to prolong the service life of the valve body, an anti-corrosion zinc coating is arranged on the valve body.

The opening and closing device with the anti-freezing function for the transportation of the tap water pipeline has the advantages that the sealing effect is improved through the auxiliary mechanism, compared with the existing auxiliary mechanism, the auxiliary mechanism is ingenious in structure and higher in practicability, the anti-freezing mechanism also achieves the ice melting function, compared with the existing anti-freezing mechanism, the anti-freezing mechanism can also achieve the effect that impurities on the connecting pipe can be removed through the rotation of the driving sealing disc, and the sealing performance between the sealing disc and the connecting pipe is prevented from being influenced by the impurities.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of an opening and closing device with an anti-freezing function for transporting a tap water pipeline according to the present invention;

FIG. 2 is a schematic structural diagram of an anti-freezing mechanism of an opening and closing device with an anti-freezing function for the transportation of a tap water pipeline, which is disclosed by the invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an enlarged view of portion B of FIG. 2;

in the figure: 1. the valve comprises a valve body, a plug board, a connecting pipe, a sealing disc, a rotating shaft, a rotating disc, a friction ring, an electromagnet, a transmission rod, a connecting block, a spring, a driving motor, a driving bevel gear, a driven bevel gear, a bearing, a power motor, a screw rod, a sliding block and a push rod, wherein the plug board is 2, the connecting pipe is 3, the sealing disc is 4, the rotating shaft is 5, the rotating disc is 6, the friction ring is 7, the electromagnet is.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1-2, an opening and closing device with an anti-freezing function for transportation of a tap water pipeline comprises a valve body 1, an insertion plate 2 and two connecting pipes 3, wherein the insertion plate 2 is arranged on the valve body 1, the insertion plate 2 is matched with the valve body 1, the insertion plate 2 is in sliding and sealing connection with the inner wall of the valve body 1, the two connecting pipes 3 are coaxially arranged and are respectively arranged on two sides of the valve body 1, the two connecting pipes 3 are communicated through the valve body 1, a lifting device is arranged at the top of the valve body 1, the lifting device drives the insertion plate 2 to lift, the insertion plate 2 is positioned between the connecting pipes 3 and the lifting device, a through hole is formed in the insertion plate 2, the axis of the through hole is parallel to the axis of the connecting pipes 3, the aperture of the through hole is equal to;

the auxiliary mechanism comprises two sealing discs 4 and two pushing assemblies, the sealing discs 4 are coaxially arranged with the through holes, the two sealing discs 4 are respectively arranged at two ends in the through holes, the diameter of each sealing disc 4 is equal to the inner diameter of each connecting pipe 3, the sealing discs 4 are in sliding and sealing connection with the inner walls of the through holes, gaps are formed between the two sealing discs 4, the two pushing assemblies are respectively arranged at one sides, close to each other, of the two sealing discs 4, and the pushing assemblies drive the sealing discs 4 to move along the axial direction of the through holes;

the anti-freezing mechanism is positioned between the two sealing discs 4 and comprises a power assembly, a rotating shaft 5 and two anti-freezing assemblies, the rotating shaft 5 is coaxially arranged with the through hole, the power assembly is arranged at the middle end of the rotating shaft 5 and is in transmission connection with the rotating shaft 5, and the two anti-freezing assemblies are respectively arranged at two ends of the rotating shaft 5;

the subassembly that prevents frostbite includes rolling disc 6, friction ring 7 and two at least drive unit, rolling disc 6 just installs in axis of rotation 5 with sealed 4 coaxial settings of dish, rolling disc 6 and the laminating of sealed dish 4, friction ring 7 and the coaxial setting of through-hole, the internal diameter of friction ring 7 equals with the diameter of rolling disc 6, the external diameter of friction ring 7 is less than the aperture of through-hole, the inner wall fixed connection of friction ring 7 and through-hole, rolling disc 6 sets up in friction ring 7 and with the inner wall sliding connection of friction ring 7, drive assembly uses the axis of through-hole as center circumference evenly distributed on rolling disc 6, rolling disc 6 is connected with sealed dish 4 through drive unit.

Two connecting pipes 3 are respectively connected with a running water conveying pipeline to realize the conveying of running water, during the process, when the running water conveying is required to be stopped, an inserting plate 2 is moved towards the direction close to the axis of the connecting pipes 3 through a lifting device, and the through hole and the connecting pipes 3 are in the coaxial position and then stopped, a sealing disc 4 is inserted into the connecting pipes 3 through a pushing assembly, so that the thrust generated by the water pressure on the inserting plate 2 can be reduced, the phenomenon that the inserting plate 2 is deformed due to long-term stress to influence the sealing performance is avoided, when the running water in the running water conveying pipe is frozen, a rotating shaft 5 drives a rotating disc 6 to rotate through a power assembly, the rotating disc 6 drives the sealing disc 4 inserted into the connecting pipes 3 to rotate through a transmission unit, the ice melting is realized through the heat generated through the friction between the sealing disc 4 and ice blocks, and meanwhile, the heat generated through the sliding of, the temperature of the sealing disc 4 can be increased, the ice melting capability is improved, and the anti-freezing function is realized.

Preferably, in order to push the sealing disc 4 to move, the pushing assembly comprises at least two electromagnets 8, the electromagnets 8 are circumferentially and uniformly fixed on the inner wall of the through hole by taking the axis of the through hole as a center and abut against the sealing disc 4, and the sealing disc 4 is made of a magnet.

The electromagnet 8 is energized to generate a repulsive force between the seal disk 4 made of the magnet and the electromagnet 8, so that the seal disk 4 is inserted into the connection pipe 3.

As shown in fig. 3, the transmission unit includes a transmission rod 9, a connecting block 10, a spring 11 and a mounting hole, the mounting hole is formed in the rotating disc 6, the transmission rod 9 is parallel to the rotating shaft 5, the transmission rod 9 penetrates through the mounting hole and is in sliding connection with the inner wall of the mounting hole, one end of the transmission rod 9 is fixed on the sealing disc 4, the connecting block 10 is fixed at the other end of the transmission rod 9, the spring 11 is located between the connecting block 10 and the rotating disc 6, and the connecting block 10 is connected with the rotating disc 6 through the spring 11.

The rotation of rolling disc 6 drives sealed dish 4 through transfer line 9 and rotates, when sealed dish 4 inserts in the connecting pipe 3, sealed dish 4's removal drives connecting block 10 through transfer line 9 and realizes synchronous motion to make spring 11 compress, after the electro-magnet 8 outage, can make sealed dish 4 reset under the elastic action of spring 11, here, the cooperation of transfer line 9 and mounting hole not only can realize supporting sealed dish 4's effect, can also realize making rolling disc 6 drive sealed dish 4 pivoted function.

Preferably, in order to facilitate the installation of the transmission rod 9, both ends of the transmission rod 9 are provided with chamfers.

The chamfer angle is used for reducing the caliber of the transmission rod 9 when the transmission rod passes through the mounting hole, and the effect of convenient mounting is achieved.

As shown in fig. 4, the power assembly includes a driving motor 12, a driving bevel gear 13, a driven bevel gear 14 and a bearing 15, the driving motor 12 is fixed on the inner wall of the through hole and is in transmission connection with the driving bevel gear 13, the driven bevel gear 14 and the inner ring of the bearing 15 are both mounted on the rotating shaft 5, the outer ring of the bearing 15 is fixedly connected with the inner wall of the through hole, and the driving bevel gear 13 is meshed with the driven bevel gear 14.

The driving motor 12 is started to rotate the driving bevel gear 13, the rotation of the driving bevel gear 13 drives the driven bevel gear 14 to rotate, and the rotation of the driven bevel gear 14 drives the rotating shaft 5 to rotate under the supporting action of the bearing 15.

Preferably, the driving motor 12 is a servo motor in order to increase the driving force of the driving motor 12.

The servo motor has a characteristic of strong overload capability, so that the driving force of the driving motor 12 can be improved.

Preferably, in order to realize the movement of the inserting plate 2, the lifting device comprises a power motor 16, a screw rod 17, a sliding block 18, two push rods 19 and two connecting holes, the axis of the screw rod 17 is perpendicular to and intersected with the axis of the through hole and the axis of the connecting pipe 3 respectively, the power motor 16 is fixed at the top of the valve body 1 and is in transmission connection with the screw rod 17, the sliding block 18 is sleeved on the screw rod 17, the connecting part of the sliding block 18 and the screw rod 17 is provided with a thread matched with the screw rod 17, the push rod 19 is parallel to the screw rod 17, the screw rod 17 is positioned between the two push rods 19, the push rod 19 is positioned between the sliding block 18 and the valve body 1, the connecting holes are arranged at the top of the valve body 1 and are in one-to-one correspondence with the push rods 19, the push rods 19 penetrate through the connecting holes, the push rods, the other end of the push rod 19 is fixed on the slide block 18.

The power motor 16 is started to rotate the screw rod 17 and move the slide block 18 on the screw rod 17, and the slide block 18 moves to drive the inserting plate 2 to realize synchronous movement through the push rod 19.

Preferably, in order to reduce the gap between the push rod 19 and the inner wall of the coupling hole, the inner wall of the coupling hole is coated with a sealing grease.

The sealing grease has the function of reducing the gap between the push rod 19 and the inner wall of the connecting hole, and the sealing performance is improved.

Preferably, in order to reduce the friction between the screw 17 and the slider 18, the screw 17 is coated with a lubricating oil.

The lubricating oil has the function of reducing the friction force between the screw rod 17 and the sliding block 18 and improving the moving fluency of the sliding block 18.

Preferably, in order to prolong the service life of the valve body 1, an anti-corrosion zinc coating is arranged on the valve body 1.

The function of anticorrosive galvanizing coat is to promote the rust-resistant ability of valve body 1, prolongs the life of valve body 1.

The two connecting pipes 3 are respectively connected with a running water conveying pipeline to realize the conveying of running water, during the period, when the conveying of the running water is required to be stopped, a power motor 16 is started to enable a screw rod 17 to rotate, a slide block 18 moves on the screw rod 17, the movement of the slide block 18 drives an inserting plate 2 to realize synchronous movement through a push rod 19, so that the inserting plate 2 can move towards the direction close to the axis of the connecting pipes 3, and the through hole and the connecting pipes 3 are stopped after being in the coaxial position, subsequently, an electromagnet 8 is electrified to generate mutually exclusive acting force between a sealing disc 4 made of a magnet material and the electromagnet 8, so that the sealing disc 4 is inserted into the connecting pipes 3, thereby reducing the thrust generated by water pressure on the inserting plate 2, avoiding the influence on the sealing performance due to the deformation generated by the long-term stress of the inserting plate 2, and the movement of, the spring 11 is compressed, when tap water in the tap water conveying pipe is frozen, the driving motor 12 is started to rotate the driving bevel gear 13, the driving bevel gear 13 rotates to drive the driven bevel gear 14 to rotate, the driven bevel gear 14 rotates to drive the rotating shaft 5 to rotate under the supporting action of the bearing 15, the rotating shaft 5 rotates to drive the rotating disc 6 to rotate, the rotating disc 6 rotates to drive the sealing disc 4 inserted into the connecting pipe 3 to rotate through the transmission rod 9, ice melting is realized by heat generated by friction between the sealing disc 4 and ice blocks, meanwhile, heat generated by sliding of the rotating disc 6 on the inner wall of the friction ring 7 is transferred to the sealing disc 4, the temperature of the sealing disc 4 can be increased, the ice melting capacity is improved, and an anti-freezing function is realized.

Compared with the prior art, this an headstock gear for water pipeline transport has antifreezing function has promoted sealed effect through complementary unit, compare with current complementary unit, this complementary unit structure is ingenious, the practicality is stronger, moreover, still realized the function of ice-melt through antifreezing mechanism, compare with current antifreezing mechanism, this antifreezing mechanism can also realize can also clearing away the impurity on the connecting pipe 3 in through the rotation of drive sealed dish 4, avoid impurity influence sealed dish 4 and the leakproofness between the connecting pipe 3.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.