Hot galvanizing device for lamp post

Abstract

The utility model relates to a hot galvanizing device for a lamp post, which belongs to the technical field of galvanizing and comprises a liquid storage tank, a hanging tool is arranged above the liquid storage tank, and the hanging tool is connected with a lifting mechanism. The hanging tool comprises a frame body and two hanging rods, supporting columns perpendicular to the hanging rods are arranged at the lower ends of the hanging rods, the upper ends of the hanging rods are hinged to the frame body, and the hanging rods are connected with hanging driving mechanisms for driving the hanging rods to rotate; a plurality of parallel supporting pieces are arranged in the liquid storage tank, supporting grooves are formed in the upper surfaces of the supporting pieces, and when the supporting columns are horizontal, the supporting grooves are located under the supporting columns. The two ends of the lamp pole are hooked through the supporting columns, a clamping mechanism does not need to be arranged, and taking and placing are more convenient. Besides, hot galvanizing is divided into two processes, firstly, the inner wall of the lamp post is supported through the supporting column, then the outer wall of the lamp post is supported through the supporting groove, the supporting positions of the supporting column and the supporting groove are different, the whole inner wall and the whole outer wall of the lamp post can make contact with galvanizing liquid, and galvanizing blind areas are eliminated.

Description

Technical Field

[0001] The utility model belongs to the technical field of galvanizing, in particular to a hot-dip galvanizing device for a lamp pole. Background Art

[0002] Street light poles are usually made of metal. In order to improve the corrosion resistance of street light poles, they need to be galvanized. Hot-dip galvanizing is a common galvanizing process. By immersing the light pole in molten zinc liquid, a zinc layer is formed on the surface of the light pole. Street light poles are usually cylindrical. When galvanizing, a hanger is needed to lift the light pole and place it in the galvanizing liquid. After the galvanizing is completed, the light pole is lifted above the galvanizing liquid. For existing hangers, please refer to CN202223127566.X-A new type of hanger for hot-dip galvanizing of street light poles, CN201610485201.4-A clamping device for galvanizing street light poles and other public patents. When these hangers or clamps are used, the two ends of the light pole need to be clamped, which is more troublesome to operate. In addition, after clamping the two ends of the light pole, the clamp will inevitably contact part of the surface of the light pole. During galvanizing, the contact point between the clamp and the light pole is difficult to contact the galvanizing liquid, resulting in a blind spot for galvanizing. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a hot-dip galvanizing device for a lamp pole, which can more conveniently take and place the lamp pole and eliminate the galvanizing blind area.

[0004] In order to solve the above problems, the technical solution adopted by the present invention is as follows: a lamp pole hot-dip galvanizing device includes a liquid storage tank, a hanger is provided above the liquid storage tank, and the hanger is connected to a lifting mechanism;

[0005] The hanger includes a frame and two hanging rods, the lower ends of the hanging rods are provided with support columns perpendicular to the hanging rods, the upper ends of the hanging rods are hinged to the frame, and the hanging rods are connected to a hanging drive mechanism for driving the hanging rods to rotate;

[0006] A plurality of mutually parallel supporting members are arranged in the liquid storage tank, and a supporting groove is arranged on the upper surface of the supporting member. When the supporting column is horizontal, the supporting groove is located directly below the supporting column.

[0007] Furthermore, the upper surface of the support column is a curved surface.

[0008] Furthermore, a crossbeam is provided above the liquid storage tank, a vertical guide column is fixedly provided on the frame, the guide column passes through the crossbeam and slides with the crossbeam; the lifting mechanism is provided on the crossbeam and connected to the frame.

[0009] Furthermore, the lifting mechanism is a hydraulic cylinder.

[0010] Furthermore, a support frame is provided above the liquid storage tank, both ends of the crossbeam are slidably engaged with the support frame, and the crossbeam is connected to a feeding drive mechanism.

[0011] Furthermore, a horizontal telescopic mechanism is provided on the top of the liquid storage tank, and the telescopic mechanism is connected to a horizontal upper push rod and a lower push rod. A drainage block is provided at one end of the upper push rod away from the telescopic mechanism, and a scraper plate is provided at one end of the lower push rod away from the telescopic mechanism.

[0012] Furthermore, the hanging drive mechanism includes a motor, the upper end of the hanging rod is hinged to the frame through a pin, and the motor is connected to the pin.

[0013] Furthermore, an insulation layer is provided on the outer wall of the liquid storage tank, and a heating element is provided between the insulation layer and the liquid storage tank.

[0014] The beneficial effects of the present invention are as follows: when positioning the lamp pole, the two hanging rods are driven by the hook drive mechanism to rotate in opposite directions to an inclined state, the distance between the lower ends of the two hanging rods is increased, and then the lamp pole is moved between the support columns of the two hanging rods, and then the two hanging rods are driven by the hook drive mechanism to rotate toward each other to a vertical state, and the support columns enter the two ends of the lamp pole. The two ends of the lamp pole are supported by the support columns, so that the lamp pole can be kept stable. The lifting mechanism is used to drive the hanger and the lamp pole to be immersed in the galvanizing liquid in the liquid storage tank. After galvanizing for a period of time, the lifting mechanism drives the hanger and the lamp pole to move downward again by an appropriate distance, so that the lamp pole falls into the support groove of the support member. At this time, the support column is separated from the inner wall of the lamp pole and is located in the end of the lamp pole. After continuing to galvanize for a period of time, the galvanizing is completed, and the lifting mechanism is used to drive the hanger and the lamp pole to move upward to the top of the liquid storage tank. After the galvanized layer on the inner and outer walls of the lamp pole cools, the lamp pole can be removed.

[0015] This new design uses support columns to hook the ends of the lamp pole, eliminating the need for a clamping mechanism and making it easier to remove and place. Furthermore, hot-dip galvanizing is a two-step process: first, the support columns support the inner wall of the lamp pole, and then the support grooves support the outer wall. The two support positions are different, ensuring that the entire inner and outer walls of the lamp pole are exposed to the galvanizing solution, eliminating blind spots during galvanizing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a main schematic diagram of the utility model;

[0017] Figure 2 yes Figure 1 Middle AA cross-sectional view;

[0018] Figure 3 yes Figure 1 Schematic diagram of the BB cross section;

[0019] Figure 4 yes Figure 1Schematic diagram of CC cross section;

[0020] Figure 5 yes Figure 1 Middle DD cross-sectional view;

[0021] Figure 6 yes Figure 1 EE cross-sectional view diagram;

[0022] Figure numerals: 1—liquid storage tank; 2—frame; 3—hanging rod; 4—support column; 5—support member; 6—support groove; 7—crossbeam; 8—guide column; 9—hydraulic cylinder; 10—support frame; 11—feeding drive mechanism; 12—telescopic mechanism; 13—upper push rod; 14—lower push rod; 15—scraper plate; 16—motor; 17—pin shaft; 18—insulation layer; 19—heating element; 20—drainage block. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] The utility model of the lamp pole hot dip galvanizing device, such as Figures 1 to 6 As shown, it includes a liquid reservoir 1, and a hanger is provided above the liquid reservoir 1, and the hanger is connected to a lifting mechanism. The liquid reservoir 1 is a rectangular box, tank or tank body with an open top, and can be made of high-temperature resistant metal material. A certain amount of liquid zinc is stored in the liquid reservoir 1, and the temperature of the liquid zinc is 470 to 500 degrees Celsius. In order to reduce the heat loss of the liquid zinc and maintain the liquid zinc at a suitable temperature, the utility model is provided with an insulation layer 18 on the outer wall of the liquid reservoir 1. The insulation layer 18 plays the role of heat preservation and heat insulation, and adopts various existing high-temperature resistant insulation materials, such as ceramic fiber, aluminum silicate fiber, etc. In addition, a heating element 19 is provided between the insulation layer 18 and the liquid reservoir 1. The heating element 19 can heat the liquid zinc to make up for the heat lost by the liquid zinc. Specifically, an electric heating element can be used. In order to accurately control the temperature of the liquid zinc, a thermocouple may be provided in the liquid storage tank 1 to detect the temperature of the liquid zinc. When the temperature of the liquid zinc drops to a set value, the heating element 19 may be turned on to heat the liquid zinc.

[0025] The hanger is used to position the galvanized lamp pole so as to drive the lamp pole to move up and down. Specifically, the hanger includes a frame body 2 and two hanging rods 3. The lower end of the hanging rod 3 is provided with a support column 4 perpendicular to the hanging rod 3. The upper end of the hanging rod 3 is hinged to the frame body 2, and the hanging rod 3 is connected to a hanging drive mechanism that drives the hanging rod 3 to rotate. The frame body 2 is arranged horizontally and can be welded with steel profiles. The two hanging rods 3 are respectively arranged at both ends of the frame body 2. The support column 4 and the hanging rod 3 form an L-shaped hook structure. The lamp pole is cylindrical. When the support column 4 is extended into the inner hole at the end of the lamp pole, the lamp pole can be hung. The upper end of the hanging rod 3 is hinged to the frame body 2, so that the hanging rod 3 can rotate within a certain range. When the two hanging rods 3 are in a vertical state, the distance between the two hanging rods 3 is slightly greater than the length of the lamp pole. The two hanging rods 3 can rotate toward each other and in opposite directions. When the two hanging rods 3 rotate in opposite directions from a vertical state to an inclined state, the distance between the support columns 4 of the two hanging rods 3 increases; when the two hanging rods 3 rotate toward each other from an inclined state to a vertical state, the distance between the support columns 4 of the two hanging rods 3 decreases, and the support columns 4 can extend into the port of the lamp pole.

[0026] The liquid reservoir 1 is equipped with multiple parallel support members 5, which can be bar-shaped support blocks. Their upper surfaces are provided with support grooves 6, which are semicircular ring-shaped grooves that match the shape and size of the lamp post, ensuring stable support. There can be two or three support members 5. When the support column 4 is horizontal, the support grooves 6 are located directly below the support column 4. This means that when the support column 4 and the hanging rod 3 drive the lamp post downward into the liquid reservoir 1, the lamp post can fall into the support grooves 6.

[0027] The hot-dip galvanizing process of this utility model is:

[0028] The two hanging rods 3 are driven by the hanging driving mechanism to rotate in opposite directions to a tilted state, and the distance between the lower ends of the two hanging rods 3 increases;

[0029] Then move the lamp pole between the support columns 4 of the two hanging rods 3, and use the hanging drive mechanism to drive the two hanging rods 3 to rotate toward each other to a vertical state, drive the support columns 4 into the two ends of the lamp pole, and use the support columns 4 to support the two ends of the lamp pole to keep the lamp pole stable;

[0030] The lifting mechanism is used to drive the hanger and the lamp pole to be immersed in the galvanizing solution in the liquid reservoir 1, with the lamp pole located above the support 5;

[0031] After galvanizing for a period of time, the lifting mechanism continues to drive the hanger and the lamp pole to move downward as a whole, so that the lamp pole falls into the support groove 6 of the support member 5, and the lamp pole is supported by the support member 5. At this time, the support column 4 is separated from the inner wall of the lamp pole, but is still located in the inner hole of the lamp pole;

[0032] After galvanizing is completed for a period of time, the lifting mechanism is used to drive the hanger to move upward, and the support column 4 hooks the two ends of the lamp pole again. Then the lifting mechanism drives the hanger and the lamp pole to move upward to the top of the liquid storage tank 1;

[0033] After the galvanized layers on the inner and outer walls of the lamp post cool down, the hook drive mechanism drives the two hook rods 3 to rotate in opposite directions to a tilted state, and the support column 4 is separated from the lamp post, releasing the hook on the lamp post.

[0034] During the galvanizing process, the utility model first uses the support column 4 to support the inner wall of the lamp pole so that the outer wall of the lamp pole can fully contact the galvanizing liquid; then uses the support groove 6 to support the outer wall of the lamp pole so that the inner wall of the lamp pole can fully contact the galvanizing liquid, thereby ensuring that both the inner and outer walls of the lamp pole can contact the galvanizing liquid and eliminating the galvanizing blind area.

[0035] In addition, the utility model does not need to clamp the lamp pole, and adopts the hanging drive mechanism to automatically control the movement of the hanging rod 3 to achieve the hanging and loosening of the lamp pole, without manual clamping and locking, and the operation is more convenient.

[0036] The support column 4 can be a circular cylinder. As a preferred embodiment, the upper surface of the support column 4 is an arc surface. The shape and size of the arc surface are adapted to the shape and size of the inner wall of the lamp pole, which can increase the contact area between the support column 4 and the lamp pole, improve the stability of the lamp pole when it moves up and down, and avoid the contact area being too small to cause the galvanized layer on the inner wall of the lamp pole to wear.

[0037] To improve the stability of the frame 2 during its vertical movement, a horizontal beam 7 is provided above the liquid reservoir 1. A vertical guide post 8 is fixed to the frame 2, extending through and slidingly engaging with the beam 7. The lifting mechanism is mounted on the beam 7 and connected to the frame 2. The guide post 8 serves as a guide and positioning mechanism, ensuring that the frame 2 moves vertically up and down and preventing it from shaking.

[0038] The lifting mechanism is a hydraulic cylinder 9, and commonly used equipment such as a winch can also be used.

[0039] A support frame 10 is provided above the liquid reservoir 1, and both ends of the crossbeam 7 are slidably engaged with the support frame 10, and the crossbeam 7 is connected to a feeding drive mechanism 11. The feeding drive mechanism 11 can push the crossbeam 7 to slide horizontally, and the crossbeam 7 can drive the frame body 2 and the like to move horizontally as a whole, so that the hanger is moved from directly above the liquid reservoir 1 to outside the liquid reservoir 1, so as to facilitate more convenient placement of the lamp pole. Specifically, the lamp pole to be galvanized is transported to the outside of the liquid reservoir 1, and then the crossbeam 7 is used to transport the hanger to the top of the lamp pole, and then the lamp pole is moved upward. After the lamp pole is hung with the hanger, the crossbeam 7 transports the hanger and the lamp pole as a whole to the top of the liquid reservoir 1, and then the lifting mechanism can be used to drive the hanger and the lamp pole as a whole to be immersed in the liquid reservoir 1. After the galvanizing is completed, the lamp pole is transported to the loading position and then unloaded. The feeding drive mechanism 11 can be a commonly used device such as a screw nut sub-mechanism driven by a cylinder or a motor.

[0040] When the lamp pole moves up and down, it is always in a horizontal state. After the galvanizing is completed, the liquid zinc inside the lamp pole is difficult to be discharged quickly, resulting in the accumulation of a thicker thickness of galvanizing liquid on the inner wall of the lamp pole, resulting in uneven galvanizing thickness and waste of galvanizing liquid. In addition, the galvanizing liquid remaining on the outer wall of the lamp pole will also flow downward to the bottom of the lamp pole, forming zinc with uneven thickness. In order to solve this problem, the utility model is provided with a horizontal telescopic mechanism 12 on the top of the liquid storage tank 1. The telescopic mechanism 12 is connected to a horizontal upper push rod 13 and a lower push rod 14. The end of the upper push rod 13 away from the telescopic mechanism 12 is provided with a drainage block 20. The cross-section of the drainage block 20 is semicircular. The end of the lower push rod 14 away from the telescopic mechanism 12 is provided with a scraper plate 15. The upper end of the scraper plate 15 is provided with a semicircular scraping trough. The length of the telescopic mechanism 12 is parallel to the axial direction of the lamp pole. When the galvanizing is completed and the lamp pole moves upward to the upper end of the liquid reservoir 1, the scraper trough can be coaxial with the lamp pole. At this time, the upward movement of the lamp pole is paused, and the telescopic mechanism 12 extends, driving the upper push rod 13 and the lower push rod 14 to move horizontally, so that the drain block 20 extends into the lamp pole, and the lower surface of the drain block 20 contacts the bottom of the lamp pole's inner hole. At the same time, the scraper trough of the scraper plate 15 contacts the lower portion of the lamp pole's outer wall. During the movement of the drain block 20 and scraper plate 15, they can push excess galvanizing liquid from the lamp pole to the outside of the lamp pole and fall into the liquid reservoir 1. At the same time, they can scrape excess galvanizing liquid from the outer wall of the lamp pole into the liquid reservoir 1. After the movement path of the drain block 20 and scraper plate 15 passes through the entire lamp pole, the telescopic mechanism 12 drives the drain block 20 and scraper plate 15 to reset. The telescopic mechanism 12 can be a device such as a multi-stage hydraulic cylinder.

[0041] In the present invention, the hook drive mechanism includes a motor 16. The upper end of the hanging rod 3 is hinged to the frame 2 via a pin 17. That is, the pin 17 is fixedly connected to the hanging rod 3, and the pin 17 rotates in conjunction with the frame 2. The main shaft of the motor 16 is connected to the pin 17. The motor 16 is a reduction motor. When the motor 16 is running, it can drive the pin 17 to rotate. When the pin 17 rotates, it can drive the hanging rod 3 to rotate.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A lamp pole hot-dip galvanizing device, comprising a liquid storage tank (1), a hanger being provided above the liquid storage tank (1), and the hanger being connected to a lifting mechanism; characterized in that: The hanger comprises a frame body (2) and two hanging rods (3); the lower ends of the hanging rods (3) are provided with support columns (4) perpendicular to the hanging rods (3); the upper ends of the hanging rods (3) are hinged to the frame body (2), and the hanging rods (3) are connected to a hanging drive mechanism for driving the hanging rods (3) to rotate; A plurality of mutually parallel support members (5) are provided in the liquid storage tank (1), and a support groove (6) is provided on the upper surface of the support member (5). When the support column (4) is horizontal, the support groove (6) is located directly below the support column (4).

2. The lamp pole hot-dip galvanizing device according to claim 1, characterized in that: The upper surface of the support column (4) is a curved surface.

3. The lamp pole hot-dip galvanizing device according to claim 1, characterized in that: A crossbeam (7) is provided above the liquid storage tank (1), and a vertical guide column (8) is fixedly provided on the frame (2). The guide column (8) passes through the crossbeam (7) and is slidably engaged with the crossbeam (7); the lifting mechanism is provided on the crossbeam (7) and is connected to the frame (2).

4. The lamp pole hot-dip galvanizing device according to claim 1 or 3, characterized in that: The lifting mechanism is a hydraulic cylinder (9).

5. The lamp pole hot dip galvanizing device according to claim 3, characterized in that: A support frame (10) is provided above the liquid storage tank (1), both ends of the crossbeam (7) are in sliding engagement with the support frame (10), and the crossbeam (7) is connected to a feeding drive mechanism (11).

6. The lamp pole hot dip galvanizing device according to claim 1, characterized in that: A horizontal telescopic mechanism (12) is provided on the top of the liquid storage tank (1), and the telescopic mechanism (12) is connected to a horizontal upper push rod (13) and a lower push rod (14), and a liquid discharge block (20) is provided at one end of the upper push rod (13) away from the telescopic mechanism (12), and a scraper plate (15) is provided at one end of the lower push rod (14) away from the telescopic mechanism (12).

7. The lamp pole hot dip galvanizing device according to claim 1, characterized in that: The hanging drive mechanism includes a motor (16); the upper end of the hanging rod (3) is hinged to the frame (2) via a pin shaft (17); and the motor (16) is connected to the pin shaft (17).

8. The lamp pole hot dip galvanizing device according to claim 1, characterized in that: The outer wall of the liquid storage tank (1) is provided with a heat-insulating layer (18), and a heating element (19) is provided between the heat-insulating layer (18) and the liquid storage tank (1).

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