A galvanized pipe outer blow ring and a uniform blowing method thereof

Abstract

The application discloses a galvanized pipe outer air blowing ring and a uniform air blowing method thereof, relates to the technical field of galvanized pipe outer air blowing rings, and comprises a wind ring body, fixed discs are fixedly connected to the upper and lower sides of the wind ring body, a gas supply pipe is throughly connected to the side of the wind ring body, the outer end of the gas supply pipe is communicated with external gas supply equipment, first and second air outlet holes for jetting treatment of the galvanized pipe are arranged in the inner side of the wind ring body, and electromagnetic valves are arranged in the first and second air outlet holes. The galvanized pipe outer air blowing ring and the uniform air blowing method thereof have the advantages that part of the gas conveyed into the wind ring body can be jetted outwards through the first and second air outlet holes, the outer side of the galvanized pipe is further subjected to air blowing treatment, the first and second air outlet holes are matched with each other, the outer wall of the galvanized pipe can be subjected to uniform air flow action at different positions, and the situation that air blowing is insufficient or too strong in some positions can be avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of a galvanized pipe outer blow ring, in particular to a galvanized pipe outer blow ring and a uniform blowing method thereof. BACKGROUND

[0002] The pipe outer blow ring is a device arranged around the outer part of a tubular object and achieving a specific process target by blowing air flow, and is commonly used in the fields of plastic film blow molding, metal pipe processing and fiber spinning. At present, in the manufacture of large-diameter steel pipes, the uniformity and stability of the air outlet of the blow ring directly affect the precision of the product.

[0003] The prior art one (Chinese patent with the publication number CN223176168U and the publication date of August 1, 2025) is a pressure-adjustable galvanized outer blow ring, which comprises a shell, the shell adopts a circular ring structure, and a circular ring cavity structure is formed in the inside of the shell, an inner shell of a circular ring structure is fixedly arranged on the inner side of the shell, six groups of cylindrical structure sliding rods are fixedly arranged in the rectangular grooves of the inner wall of the inner shell in a ring array, and a sliding frame of a rectangular frame structure is slidably arranged on the outer side of the sliding rods. It is convenient to adjust according to different needs, greatly improves the practicability of the device, meets different production needs, and the adjustment operation is simple and fast.

[0004] The prior art two (Chinese patent with the publication number CN201704392U and the publication date of January 12, 2011) is a galvanized steel pipe outer blow ring, which comprises a ring-shaped body, the ring-shaped body is hollow, compressed air is continuously filled into the ring-shaped body, the ring-shaped body has an inner tapered surface, a circle of air holes are uniformly distributed on the inner tapered surface, and the ring-shaped body is mainly composed of the ring-shaped body. The ring-shaped body is hollow and uniformly distributed with a circle of small air holes on the inner side, compressed gas is continuously filled into the ring body from the compressed gas inlet, a circle of air holes are uniformly distributed on the inner tapered surface of the ring-shaped body, the included angle between the axis of the air hole and the central axis of the ring-shaped body is 45-60 degrees, when the hot-dip galvanized steel pipe comes out of the zinc pot and passes through the outer blow ring, the air flow blown out of the small holes forms a "air knife" to blow and wipe the zinc liquid on the outer wall of the steel pipe clean, and the outer blowing process is completed.

[0005] Although the prior art can blow the steel pipe, the blowing angle is mostly fixed, it is difficult to realize the full coverage of the outer wall of the steel pipe, and the blowing is not uniform, the fixed angle blowing mode has poor adaptability when facing steel pipes with different diameters or shapes, the blowing range and angle cannot be flexibly adjusted, and therefore the blowing effect and the uniformity of the galvanized layer are affected.

[0006] Therefore, the application provides a galvanized pipe outer blow ring and a uniform blowing method thereof to solve the problems in the prior art. SUMMARY

[0007] The present application aims to provide a galvanized pipe outer blowing ring and a uniform blowing method thereof, to solve the problem that the blowing angle of the current market is mostly fixed, which is difficult to realize the full coverage of the outer wall of the steel pipe, and is easy to cause uneven blowing.

[0008] To achieve the above object, the present application provides the following technical scheme:

[0009] A galvanized pipe outer blowing ring and a uniform blowing method thereof, comprising a blowing ring body, the upper and lower sides of the blowing ring body are fixedly connected with fixing discs, the side of the blowing ring body is throughly connected with a gas supply pipe, the outer end of the gas supply pipe is communicated with an external gas supply device, the inner side of the blowing ring body is provided with a first gas outlet and a second gas outlet for jet processing of the galvanized pipe, the inside of the first gas outlet and the second gas outlet is provided with an electromagnetic valve, an adjusting mechanism is arranged between the blowing ring body and the fixing disc, the adjusting mechanism controls the operation of the electromagnetic valve through the movement of the sliding rod rack contained therein, a butt joint hose is throughly arranged on the inner side of the blowing ring body, the outer end of the butt joint hose is throughly connected with a blowing nozzle, and a swing mechanism is arranged between the outer side of the blowing nozzle and the fixing disc, the swing mechanism realizes multi-angle blowing of the blowing nozzle through the movement of the abutting frame contained therein.

[0010] Preferably, the first gas outlet and the second gas outlet are arranged in a vertical state in a ring shape on the inner side of the blowing ring body, and are arranged at intervals, and the first gas outlet and the second gas outlet are arranged in a ring array about the center point of the blowing ring body.

[0011] Preferably, the diameter of the first gas outlet near the inner wall of the blowing ring body is greater than the diameter near the outer wall of the blowing ring body, and the diameter of the second gas outlet near the inner wall of the blowing ring body is smaller than the diameter near the outer wall of the blowing ring body.

[0012] Preferably, the adjusting mechanism comprises a connecting shaft, the connecting shaft is rotationally connected in the inside of the blowing ring body, a wind wheel is fixedly connected at the center of the connecting shaft, the position of the wind wheel corresponds to the gas outlet end of the gas supply pipe, and the wind wheel is driven to rotate the connecting shaft under the action of the wind force.

[0013] Preferably, a sliding rod rack is slidingly connected on the blowing ring body, the upper end of the sliding rod rack extends to the outer end of the fixing disc, a connecting plate is fixedly connected to the upper end of the sliding rod rack, a half gear is fixedly connected to the outer side of the connecting shaft, the half gear is engaged with the tooth block part of the lower end of the sliding rod rack, two groups of half gears are symmetrically arranged about the center point of the connecting shaft, and a first spring is fixedly connected between the sliding rod rack and the blowing ring body.

[0014] Preferably, the outer side of the fixed disc is fixedly connected with a support plate, and the support plate is in one-to-one correspondence with the connecting plate, and the lower surface of the support plate and the upper surface of the connecting plate are respectively fixedly connected with a first electromagnetic sheet group, and the first electromagnetic sheet group is electrically connected between the electromagnetic valve arranged inside the first air outlet hole, the lower surface of the connecting plate and the upper surface of the fixed disc are fixedly connected with a second electromagnetic sheet group, and the second electromagnetic sheet group is electrically connected between the electromagnetic valve arranged inside the second air outlet hole.

[0015] Preferably, the swing mechanism comprises a fixed plate, the fixed plate is fixedly connected to the lower surface of the fixed disc, the air blowing nozzle is rotatably connected to the fixed plate, and a torsion spring is fixedly connected between the side of the air blowing nozzle and the fixed plate.

[0016] Preferably, the rear side of the fixed plate is provided with a sliding groove, and a sliding block is slidably connected in the sliding groove, the fixed plate is fixedly connected with the abutting frame, and the upper end of the abutting frame is fixedly connected with the lower surface of the connecting plate, a rod body for abutting the air blowing nozzle is arranged in the middle of the abutting frame, and the abutting frame drives the air blowing nozzle to rotate.

[0017] A uniform air blowing method of a galvanized pipe outer blowing ring, characterized in that the method further comprises the following steps:

[0018] S1: The gas supply pipe supplies gas to the inside of the wind ring body through external gas supply components, at this time the gas is transported to the inside of the air blowing nozzle through the butt joint hose arranged on the wind ring body, and is blown outwards through the air blowing nozzle, so as to blow the galvanized pipe outside, wipe off the excess zinc liquid on the outer wall of the steel pipe, complete the outer blowing process, and at the same time, part of the gas transported to the inside of the wind ring body is blown outwards through the first air outlet hole and the second air outlet hole, so as to further blow the galvanized pipe outside, and further supplement the blowing coverage range;

[0019] S2: When the gas supply pipe supplies gas to the inside of the wind ring body, the wind wheel is driven to rotate by the airflow, so as to drive the connecting shaft and the half gear to move synchronously, the meshing relationship between the half gear and the slide rod rack enables the slide rod rack to move back and forth along the fixed disc, when the slide rod rack moves, the connecting plate connected to the upper end thereof also moves, so as to drive the first electromagnetic sheet group and the second electromagnetic sheet group to alternately approach or move away, and trigger the on-off state of the electromagnetic valve, so as to realize the effect that the first air outlet hole and the second air outlet hole work alternately, ensure that the gas can be blown out from different positions in a uniform manner, and avoid the problem of uneven coverage caused by single direction blowing;

[0020] S3: When the slide rack moves, the slide rack will synchronously drive the abutment frame to move, the movement of the abutment frame will exert force on the blowing nozzle through the rod body arranged in the middle, so that the blowing nozzle swings around the rotating connection point on the fixed plate, and under the cooperation of the torsion spring, the blowing nozzle can reciprocate within a certain angle range, multi-angle blowing effect is realized, the uniformity of blowing is further improved, each area of the galvanized pipe outer wall is effectively covered, and the quality and efficiency of blowing treatment are further optimized.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] 1、The present application, the gas supply pipe supplies gas to the inside of the wind ring body through the external gas supply component, at this time the gas is transported to the inside of the blowing nozzle through the butt joint hose arranged on the wind ring body, and is sprayed outward through the blowing nozzle, so that the galvanized pipe outside is blown and treated, the excess zinc liquid on the outer wall of the steel pipe is blown and wiped clean, the outer blowing process is completed, and the quality and efficiency of the galvanized pipe surface treatment are significantly improved.

[0023] 2、The present application, part of the gas transported to the inside of the wind ring body is sprayed outward through the first gas outlet hole and the second gas outlet hole, so that the galvanized pipe outside is further blown and treated, the setting of the first gas outlet hole and the second gas outlet hole can effectively improve the uniformity of blowing, when the gas passes through the first gas outlet hole, due to the design of the diameter difference of the inner wall, the gas flow rate will form a specific distribution mode at the outlet; and the second gas outlet hole is further supplemented by the opposite diameter change design, the range of blowing coverage is further supplemented, the first gas outlet hole and the second gas outlet hole cooperate with each other, so that the outer wall of the galvanized pipe can be uniformly affected by the airflow at different positions, and the problems of local blowing deficiency or excessive strength are avoided.

[0024] 3、The present application, when the gas supply pipe supplies gas to the inside of the wind ring body, the wind wheel is driven to rotate by the airflow, and drives the half gear to move through the connecting shaft, so that the slide rack moves up and down, thereby driving the first electromagnetic sheet group and the second electromagnetic sheet group to alternately approach or move away, and then triggering the electromagnetic valve to open or close, realizing intelligent control of the first gas outlet hole and the second gas outlet hole, realizing intermittent opening and closing of the first gas outlet hole and the second gas outlet hole, and ensuring that the gas can be sprayed from different positions in a uniform manner, avoiding the uneven coverage problem caused by single direction blowing.

[0025] 4、The sliding rod rack moves and drives the abutting frame to move synchronously through the connecting plate, the rod body arranged in the middle of the abutting frame contacts the blowing nozzle during the movement process, and the blowing nozzle is deflected around the rotation point on the fixed plate by applying force, the deflected blowing nozzle is provided with reset support by the torsion spring, so that the blowing nozzle can quickly recover to the initial state after each stress ends, the blowing effect of multiple angles is realized through the reciprocating blowing nozzle, the blowing direction is flexibly adjusted, and the comprehensiveness and efficiency of the galvanized pipe outer wall treatment are further improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a three-dimensional structure schematic diagram of the present application;

[0027] Figure 2 It is a three-dimensional sectional structure schematic diagram of the present application;

[0028] Figure 3 It is a three-dimensional structure schematic diagram of the present application; Figure 2 It is an enlarged structure schematic diagram of A in the present application;

[0029] Figure 4 It is a three-dimensional structure schematic diagram of the present application;

[0030] Figure 5 It is an enlarged structure schematic diagram of B in the present application; Figure 4

[0031] It is a three-dimensional structure schematic diagram of the present application; Figure 6

[0032] It is a three-dimensional structure schematic diagram of the present application; Figure 7

[0033] It is a three-dimensional structure schematic diagram of the present application; Figure 8

[0034] It is a three-dimensional structure schematic diagram of the present application. Figure 9 In the figure: 1, air ring body; 2, fixed disc; 3, gas supply pipe; 4, fixed plate; 5, connecting plate; 6, support plate; 7, wind wheel; 8, first air outlet; 9, blowing nozzle; 10, connecting shaft; 11, half gear; 12, sliding rod rack; 13, butt joint hose; 14, first spring; 15, abutting frame; 16, electromagnetic valve; 17, first electromagnetic sheet group; 18, second electromagnetic sheet group; 19, torsion spring; 20, sliding block; 21, sliding groove; 22, second air outlet.

[0035] DETAILED DESCRIPTION

[0036] ​The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example 1: To effectively avoid problems such as insufficient air blowing leading to zinc residue in localized areas, or excessive air blowing causing damage to the zinc plating layer, such as... Figure 1 - Figure 5 The present invention provides the following technical solution: an external blowing ring for a galvanized pipe and a method for uniformly blowing air thereon, which discloses:

[0038] Fixed plates 2 are fixedly connected to both the upper and lower sides of the air ring body 1, and an air supply pipe 3 is connected through the side of the air ring body 1. The outer end of the air supply pipe 3 is connected to an external air supply device. A first air outlet 8 and a second air outlet 22 for spraying galvanized pipes are opened on the inner side of the air ring body 1. Solenoid valves 16 are installed inside the first air outlet 8 and the second air outlet 22. A connecting hose 13 is connected through the inner side of the air ring body 1, and an air blowing nozzle 9 is connected through the outer end of the connecting hose 13. The first air outlet 8 and the second air outlet 22 are arranged in a vertical ring on the inner side of the air ring body 1, and the first air outlet 8 and the second air outlet 22 are spaced apart. The first air outlet 8 and the second air outlet 22 are arranged in a ring array about the center point of the air ring body 1. The diameter of the first air outlet 8 near the inner wall of the air ring body 1 is larger than the diameter near the outer wall of the air ring body 1, and the diameter of the second air outlet 22 near the inner wall of the air ring body 1 is smaller than the diameter near the outer wall of the air ring body 1.

[0039] The gas supply pipe 3 supplies gas to the inside of the wind ring body 1 through the external gas supply component, at this time, the gas is transported to the inside of the blowing nozzle 9 through the docking hose 13 arranged on the wind ring body 1, and is blown outwards through the blowing nozzle 9, so as to blow the galvanized pipe outside, wipe off the excess zinc liquid on the outer wall of the steel pipe, complete the outer blowing process, at the same time, part of the gas transported to the inside of the wind ring body 1 is blown outwards through the first gas outlet hole 8 and the second gas outlet hole 22, so as to further blow the galvanized pipe outside, further supplement the blowing coverage range, the gas supply pipe 3 stably transports the compressed gas to the inside chamber of the wind ring body 1 through the connection with the external gas supply component, the gas entering the wind ring body 1 is divided into two ways, one way of the gas is accurately transported to the inside of the blowing nozzle 9 through the docking hose 13 arranged in advance on the wind ring body 1, and then is blown outwards from the blowing nozzle 9 at a specific flow rate and direction, forming a high-efficiency blowing airflow for the outside of the galvanized pipe, which can effectively act on the outer wall of the galvanized pipe, rapidly wipe off the excess zinc liquid attached to the outer wall of the steel pipe, so as to smoothly complete the outer blowing process, thereby optimizing the surface treatment quality of the galvanized pipe and greatly improving the treatment efficiency, providing a good foundation condition for the subsequent process, the other part of the gas transported to the inside of the wind ring body 1 is diffused and blown out to the space outside the galvanized pipe through the first gas outlet hole 8 and the second gas outlet hole 22, and the galvanized pipe outside is supplemented with blowing treatment, when the gas passes through the first gas outlet hole 8, due to the gradual difference design of the inner wall diameter, according to the fluid continuity equation and Bernoulli principle, the gas flow rate will form a specific distribution mode at the outlet, so that the airflow speed at different positions of the outlet is different but coordinated with each other, and the second gas outlet hole 22 adopts a diameter change design opposite to that of the first gas outlet hole 8, further expanding the coverage range of the blowing airflow, making up for the insufficient blowing intensity of the first gas outlet hole 8 in some areas, the first gas outlet hole 8 and the second gas outlet hole 22 cooperate and act together to form a full-range and uniform airflow coverage for the outer wall of the galvanized pipe, so as to ensure that the outer wall of the galvanized pipe is uniformly and appropriately impacted by the airflow at different positions, thereby ensuring the stability and consistency of the surface treatment quality of the galvanized pipe.

[0040] Example two: in order to effectively avoid the problem of uneven gas coverage on the outside of the galvanized pipe caused by the fixed direction of the airflow, and ensure that each area of the outer wall of the galvanized pipe can be affected by the airflow with appropriate intensity and distribution, such as Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 9The technical scheme is shown, and the present application provides the following technical scheme: a galvanized pipe air blowing ring and a uniform air blowing method thereof, which discloses that an adjusting mechanism is arranged between the air ring body 1 and the fixed disc 2, the adjusting mechanism controls the operation of the electromagnetic valve 16 through the movement of the slide rack 12 contained therein, the adjusting mechanism comprises a connecting shaft 10, the connecting shaft 10 is rotationally connected in the inside of the air ring body 1, a wind wheel 7 is fixedly connected at the center of the connecting shaft 10, the wind wheel 7 corresponds to the position of the air outlet end of the air supply pipe 3, the wind wheel 7 is driven to rotate the connecting shaft 10 under the action of the wind force supplied, the slide rack 12 is slidably connected on the air ring body 1, the upper end of the slide rack 12 extends to the outer end of the fixed disc 2, a connecting plate 5 is fixedly connected to the upper end of the slide rack 12, a half gear 11 is fixedly connected to the outer side of the connecting shaft 10, the half gear 11 is engaged with the lower end tooth block part of the slide rack 12, the half gear 11 is symmetrically provided with two groups about the center point of the connecting shaft 10, the first spring 14 is fixedly connected between the slide rack 12 and the air ring body 1, the support plate 6 is fixedly connected to the outer side of the fixed disc 2, the support plate 6 and the connecting plate 5 are one-to-one corresponding in position, the first electromagnetic sheet group 17 is fixedly connected between the lower surface of the support plate 6 and the upper surface of the connecting plate 5, respectively, and the first electromagnetic sheet group 17 is electrically connected between the electromagnetic valve 16 arranged inside the first air outlet hole 8, the second electromagnetic sheet group 18 is fixedly connected between the lower surface of the connecting plate 5 and the upper surface of the fixed disc 2, and the second electromagnetic sheet group 18 is electrically connected between the electromagnetic valve 16 arranged inside the second air outlet hole 22.

[0041] When the gas supply pipe 3 starts and transports gas to the inside of the air ring body 1, the gas flow forms an aerodynamic field with a certain pressure and flow rate after entering the air ring body 1, and under the action of the aerodynamic field, the wind wheel 7 is driven by the gas flow to start rotating motion around its own axis, and the wind wheel 7 is mechanically connected to the half gear 11 through the connecting shaft 10 arranged in the center of the wind wheel 7, and the rotating power is transmitted to the half gear 11 to drive the half gear 11 to rotate synchronously, and when the half gear 11 rotates, part of the gear teeth of the half gear 11 meshes with the tooth profile on the slide bar rack 12, and with the rotation of the half gear 11, the gear teeth sequentially contact and generate interaction force with the teeth of the slide bar rack 12, forcing the slide bar rack 12 to make reciprocating linear motion in the vertical direction, and the up and down movement of the slide bar rack 12 further drives the first electromagnetic sheet group 17 and the second electromagnetic sheet group 18 connected thereto to move, and the first electromagnetic sheet group 17 and the second electromagnetic sheet group 18 are driven by the slide bar rack 12 to alternately approach or move away, and the electromagnetic valve 16 is provided with a sensing element sensitive to magnetic field changes, and when the corresponding first electromagnetic sheet group 17 and second electromagnetic sheet group 18 are in contact, the changing electromagnetic field is detected by the sensing element of the electromagnetic valve 16, and the sensing element outputs corresponding electric signals according to the change of the electromagnetic field, and the valve core in the electromagnetic valve 16 is actuated to realize the opening or closing of the electromagnetic valve 16, and through the accurate control of the opening and closing state of the electromagnetic valve 16, the intelligent regulation and control of the first gas outlet 8 and the second gas outlet 22 can be realized, and the opening and closing of the first gas outlet 8 and the second gas outlet 22 are intermittently controlled, so that the gas can be sprayed from different positions on the air ring body 1, i.e. the positions of the first gas outlet 8 and the second gas outlet 22 in a uniform and orderly manner, further improving the quality and uniformity of the galvanized pipe surface treatment.

[0042] In order to effectively remove excess zinc liquid at different positions and improve the comprehensiveness and efficiency of the treatment of the outer wall of the galvanized pipe, as shown in the technical scheme, Figure 5 Figure 9 The present application provides the following technical scheme: an air blowing ring for galvanized pipes and a uniform air blowing method thereof, which discloses that a swing mechanism is arranged between the outside of the air blowing nozzle 9 and the fixed disc 2, the swing mechanism realizes multi-angle air blowing of the air blowing nozzle 9 through the movement of the abutting frame 15 contained therein, the swing mechanism comprises a fixed plate 4, the fixed plate 4 is fixedly connected to the lower surface of the fixed disc 2, the air blowing nozzle 9 is rotatably connected to the fixed plate 4, and a torsion spring 19 is fixedly connected between the side of the air blowing nozzle 9 and the fixed plate 4, a sliding groove 21 is formed in the rear side of the fixed plate 4, and a sliding block 20 is slidably connected in the sliding groove 21, the fixed plate 4 and the abutting frame 15 are fixedly connected, the upper end of the abutting frame 15 and the lower surface of the connecting plate 5 are fixedly connected, a rod body for abutting the air blowing nozzle 9 is arranged in the middle of the abutting frame 15, and the air blowing nozzle 9 is driven to rotate by the abutting frame 15.

[0043] ​When the slide rack 12 moves up and down under the action of pneumatic force and mechanical transmission, its movement state is transmitted through the rigidly connected connecting plate 5. The connecting plate 5 drives the contact frame 15 to realize synchronous movement, and the middle part of the contact frame 15 is provided with a rod body. In the process of moving the contact frame 15 with the connecting plate 5, the rod body can accurately contact the blowing nozzle 9 according to the predetermined trajectory. When the rod body contacts the blowing nozzle 9, an action force with controllable size and direction will be applied to the blowing nozzle 9 according to the movement direction and intensity of the slide rack 12. The blowing nozzle 9 is connected to the fixed plate 4 through a rotating pair, and the fixed plate 4 provides stable support and a clear rotating point for the blowing nozzle 9. Under the driving of the action force of the rod body of the contact frame 15, the blowing nozzle 9 deflects around the rotating point on the fixed plate 4. When the blowing nozzle 9 is deflected by external force, the torsion spring 19 will be stretched or compressed, generating an elastic restoring force opposite to the deflection direction. After the external force disappears, the elastic restoring force of the torsion spring 19 will quickly drive the blowing nozzle 9 to reverse rotation around the rotating point until it returns to the initial set position. Through the reciprocating movement of the slide rack 12, the contact frame 15 is driven to move synchronously, and then the blowing nozzle 9 realizes periodic reciprocating swing under the action of the torsion spring 19. This reciprocating blowing mode enables the blowing nozzle 9 to spray air flow at multiple angles, achieving flexible adjustment of the blowing direction. The multi-angle blowing effect can more comprehensively cover the outer wall of the galvanized pipe.

[0044] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A galvanized pipe external blowing ring, comprising a ring body (1), wherein fixed plates (2) are fixedly connected to both the upper and lower sides of the ring body (1), and an air supply pipe (3) is connected through the side of the ring body (1), and the outer end of the air supply pipe (3) is connected to an external air supply device, characterized in that: The inner side of the air ring body (1) is provided with first air outlet holes (8) and second air outlet holes (22) for jet processing of galvanized pipes, and the inner sides of the first air outlet holes (8) and the second air outlet holes (22) are provided with electromagnetic valves (16), the air ring body (1) and the fixed disc (2) are provided with an adjusting mechanism, the adjusting mechanism controls the operation of the electromagnetic valves (16) through the movement of the sliding rack (12) contained therein, the inner side of the air ring body (1) is provided with a butt joint hose (13), the outer end of the butt joint hose (13) is connected with a blowing nozzle (9), and the outer side of the blowing nozzle (9) and the fixed disc (2) are provided with a swing mechanism, the swing mechanism realizes multi-angle blowing of the blowing nozzle (9) through the movement of the abutting frame (15) contained therein. The first air outlet holes (8) and the second air outlet holes (22) are arranged in a vertical state in a ring shape on the inner side of the air ring body (1), and the first air outlet holes (8) and the second air outlet holes (22) are arranged at intervals and are arranged in a ring array about the center point of the air ring body (1). The diameter of the first air outlet hole (8) near the inner wall of the air ring body (1) is greater than the diameter near the outer wall of the air ring body (1), and the diameter of the second air outlet hole (22) near the inner wall of the air ring body (1) is less than the diameter near the outer wall of the air ring body (1).

2. A galvanized pipe blow ring according to claim 1, wherein: The adjusting mechanism comprises a connecting shaft (10), the connecting shaft (10) is rotatably connected in the inner side of the air ring body (1), the center of the connecting shaft (10) is fixedly connected with a wind wheel (7), the wind wheel (7) corresponds to the position of the air outlet end of the air supply pipe (3), and the wind wheel (7) is driven by the wind force to rotate the connecting shaft (10).

3. A galvanized pipe blow ring according to claim 2, wherein: The air ring body (1) is slidably connected with a sliding rack (12), the upper end of the sliding rack (12) extends to the outer end of the fixed disc (2), the upper end of the sliding rack (12) is fixedly connected with a connecting plate (5), the outer side of the connecting shaft (10) is fixedly connected with a half gear (11), the half gear (11) is engaged with the lower end tooth block part of the sliding rack (12), the half gear (11) is symmetrically provided with two groups about the center point of the connecting shaft (10), and the sliding rack (12) and the air ring body (1) are fixedly connected with a first spring (14).

4. A galvanized pipe blow ring according to claim 3, wherein: The outer side of the fixed disc (2) is fixedly connected with a support plate (6), the support plate (6) corresponds to the position of the connecting plate (5) one by one, the lower surface of the support plate (6) and the upper surface of the connecting plate (5) are respectively fixedly connected with a first electromagnetic sheet group (17), the first electromagnetic sheet group (17) and the electromagnetic valve (16) arranged in the first air outlet hole (8) are electrically connected, the lower surface of the connecting plate (5) and the upper surface of the fixed disc (2) are fixedly connected with a second electromagnetic sheet group (18), and the second electromagnetic sheet group (18) and the electromagnetic valve (16) arranged in the second air outlet hole (22) are electrically connected.

5. A galvanized pipe blow ring as defined in claim 4 wherein: The swing mechanism comprises a fixed plate (4) fixedly connected to the lower surface of the fixed disc (2), and the air blowing nozzle (9) is rotatably connected to the fixed plate (4), and a torsion spring (19) is fixedly connected between the side of the air blowing nozzle (9) and the fixed plate (4).

6. A galvanized pipe blow ring as defined in claim 5 wherein: A sliding groove (21) is formed in the rear side of the fixed plate (4), and a sliding block (20) is slidably connected in the sliding groove (21), the fixed plate (4) is fixedly connected with the abutting frame (15), and the upper end of the abutting frame (15) is fixedly connected with the lower surface of the connecting plate (5), and the abutting frame (15) is provided with a rod body abutting against the air blowing nozzle (9), and the abutting frame (15) drives the air blowing nozzle (9) to rotate.

7. A method of uniform air blowing based on the galvanized pipe blow ring of any one of claims 1-6, characterized by: Further comprising the following steps: S1: the gas supply pipe (3) supplies gas to the inside of the wind ring body (1) through the external gas supply component, at this time the gas is transported to the inside of the air blowing nozzle (9) through the butt joint hose (13) arranged on the wind ring body (1), and is blown outwards through the air blowing nozzle (9), so as to blow the outside of the galvanized pipe and wipe off the excess zinc liquid on the outer wall of the steel pipe, complete the external blowing process, at the same time, part of the gas transported to the inside of the wind ring body (1) will be blown outwards through the first air outlet (8) and the second air outlet (22), so as to further blow the outside of the galvanized pipe, and further supplement the range of blowing coverage; S2: when the gas supply pipe (3) supplies gas to the inside of the wind ring body (1), the wind wheel (7) is driven to rotate by the airflow, so as to drive the connecting shaft (10) and the half gear (11) to move synchronously, the meshing relationship between the half gear (11) and the sliding rod rack (12) enables the sliding rod rack (12) to reciprocate along the fixed disc (2), when the sliding rod rack (12) moves, the connecting plate (5) connected to the upper end of the sliding rod rack (12) also moves, so as to drive the first electromagnetic sheet group (17) and the second electromagnetic sheet group (18) to alternately approach or move away, and trigger the switching state of the electromagnetic valve (16), so as to realize the effect that the first air outlet and the second air outlet work alternately, ensure that the gas can be blown out from different positions in a uniform manner, and avoid the problem of uneven coverage caused by blowing in a single direction; S3: when the sliding rod rack (12) moves, the sliding rod rack (12) will synchronously drive the abutting frame (15) to move, the movement of the abutting frame (15) will exert a force on the air blowing nozzle (9) through the rod body arranged in the middle of the abutting frame (15), so that the air blowing nozzle (9) swings around the rotating connection point on the fixed plate (4), under the cooperation of the torsion spring (19), the air blowing nozzle (9) can reciprocate within a certain angle range, realizing the blowing effect of multiple angles, further improving the uniformity of blowing, effectively covering each area of the outer wall of the galvanized pipe, and further optimizing the quality and efficiency of the blowing treatment.

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