A welding device for processing corrosion-resistant manhole covers

Abstract

This invention discloses a welding device for processing corrosion-resistant manhole covers, relating to the field of welding device technology. It includes a welding device body with a control console fixedly mounted on it. A pair of support plates are fixedly connected to the rear side of the top surface of the welding device body. A top plate is fixedly connected to the top of the pair of support plates. A cylinder is fixedly mounted in the middle of the top plate. A hinge ring is rotatably connected to the bottom end of the cylinder, and a welding machine is fixedly mounted on the hinge ring. This invention has a reasonable structure. The cooperation of the positioning and tensioning components facilitates the clamping and fixing of the manhole cover, replacing the traditional method of fixing the manhole cover with threads. The drive component allows the manhole cover to rotate, facilitating the welding machine's welding of the inner ring of the manhole cover.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and in particular to a welding device for processing corrosion-resistant manhole covers. Background Technology

[0002] Municipal manhole covers are exposed to complex outdoor and underground environments for extended periods. Traditional cast iron and concrete manhole covers are susceptible to corrosion from rainwater, acids, alkalis, salt spray, and corrosive gases, leading to problems such as rust, carbonization, and strength reduction. Corrosion is particularly severe in coastal areas and chemical industrial zones. Cast iron manhole covers are prone to electrochemical corrosion, and their protective layer fails rapidly after damage, shortening their service life. Concrete manhole covers are prone to carbonization and cracking, with internal steel reinforcement corroding and expanding, causing structural damage. Currently, most manhole covers are composite covers, which offer a certain degree of corrosion resistance.

[0003] Patent CN208051236U discloses a sealing manhole cover welding clamping mechanism, including a grid-shaped base and a clamping mechanism. The grid-shaped base has a sliding track within its grid-shaped grooves. The clamping mechanism consists of a base, a bracket, sliding rods 1 and 2, and a clamping fastening plate. The base's dimensions match the sliding track. Each of the sliding rods 1 and 2 has three fastening nuts. The sliding rod 2 and the clamping fastening plate are bolted together. The clamping fastening plate is composed of a combination of stainless steel plates connected by a fastening nut. This sealing manhole cover welding clamping mechanism is easy and labor-saving to operate, provides a secure and reliable clamping effect, and has wide applicability, suitable for welding and clamping sealing manhole covers of various thicknesses and shapes.

[0004] There are still some problems with the welding of the manhole cover.

[0005] In the process of welding manhole covers, traditional tooling often uses threaded clamping structures to fix the manhole covers. This is cumbersome, has low clamping efficiency, and is prone to deformation due to uneven force, affecting welding accuracy and product qualification rate. At the same time, traditional fixing devices lack flexible rotation functions. When welding different positions such as the inner ring and side wall of the manhole cover, frequent disassembly and repositioning are required, which is complicated, labor-intensive, and has low production efficiency. Although some existing devices have positioning functions, they lack adaptive clamping structures, making it difficult to adapt to the clamping requirements of different specifications of manhole covers and resulting in poor versatility. Summary of the Invention

[0006] The purpose of this application is to provide a welding device for processing corrosion-resistant manhole covers. It enables the manhole cover to be clamped and fixed by the cooperation of a positioning component and a tensioning component, replacing the traditional method of fixing the manhole cover by threads. Then, the drive component can rotate the manhole cover, which facilitates the welding machine to weld the inner ring of the manhole cover.

[0007] To achieve the above objectives, this application provides the following technical solution: a welding device for processing corrosion-resistant manhole covers, comprising a welding device body, a control console fixedly mounted on the welding device body, a pair of support plates fixedly connected to the rear side of the top surface of the welding device body, a top plate fixedly connected to the top of the pair of support plates, a cylinder fixedly mounted in the middle of the top plate, a hinge ring rotatably connected to the bottom end of the cylinder, and a welding machine fixedly mounted on the hinge ring;

[0008] It also includes a positioning component, a tensioning component, and a driving component. The positioning component is disposed on the welding device body for fixing the manhole cover, the tensioning component is disposed on the shelf for moving the bracket, and the driving component is disposed on the shelf for rotating the manhole cover.

[0009] Preferably, the positioning component includes a frame fixedly mounted on the welding device body, a first pulley rotatably connected to the top of the frame, a pair of slide rails fixedly connected to the top surface of the welding device body, a slider slidably connected to the pair of slide rails, and a bracket fixedly connected to the top of the slider.

[0010] Preferably, the bracket has a sliding groove, a sliding rod is slidably connected inside the sliding groove, a bracket is fixedly connected to the top of the sliding rod, a horizontal plate is fixedly connected to one end of the bracket, and second pulleys are rotatably connected to both ends of the horizontal plate.

[0011] Preferably, the bottom end of the slide rod is fixedly connected to the ring, the ring is slidably connected to the crossbar, one end of the crossbar is fixedly connected to the inner wall of the bracket, the other end of the crossbar is fixedly connected to a retaining ring, and a first spring is sleeved on the crossbar, with the two ends of the first spring being fixedly connected to one side of the ring and one side of the retaining ring, respectively.

[0012] Preferably, the stretching assembly includes a first shaft pin fixedly installed on the bottom surface of the bracket, a linkage plate rotatably connected to the first shaft pin, the other end of the linkage plate rotatably connected to a second shaft pin, the second shaft pin being fixedly connected to one end of a rotating plate, and the middle part of the rotating plate being fixedly connected to a main shaft.

[0013] Preferably, the bottom end of the main shaft is fixedly connected to the output end of the first motor, the first motor is fixedly installed at the middle position of the bottom surface of the shelf, and the bottom end of the shelf is fixedly connected to the welding device body.

[0014] Preferably, the drive assembly includes a pair of through slots formed on the shelf, a shaft is slidably connected inside the pair of through slots, a wheel is rotatably connected to the top end of the shaft, and the bottom end of the shaft is fixedly connected to the sleeve block.

[0015] Preferably, the sleeve block is slidably connected to the limiting rod, one end of the limiting rod is fixedly connected to the shelf, the other end of the limiting rod is fixedly connected to a collar, and a second spring is sleeved on the limiting rod, with the two ends of the second spring being fixedly connected to one side of the sleeve block and one side of the collar, respectively.

[0016] Preferably, a pair of shafts are provided, one of which is fitted with a sleeve. The top end of the sleeve is fixedly connected to a rotating wheel, and the bottom end of the sleeve is fixedly connected to a first pulley. A transmission belt is fitted on the first pulley, and the other end of the transmission belt is fitted on a second pulley.

[0017] Preferably, the second pulley is fixedly connected to the top end of the drive rod, the bottom end of the drive rod is fixedly connected to the output end of the second motor, the second motor is fixedly installed on the bottom surface of the positioning plate, the other end of the positioning plate is rotatably connected to the shaft, and a limit wheel is rotatably connected to the positioning plate, the limit wheel being attached to the shelf.

[0018] In summary, the present invention has the following beneficial effects:

[0019] 1. The present invention has a reasonable structure. The bracket is moved by the tensioning component. The bottom end of the bracket is fixedly connected to the slider, and the slider is fixedly connected to the slide rail. The movement of the bracket causes the slider to slide on the slide rail. A slide rod is slidably connected inside the slide groove, and the top end of the slide rod is fixedly connected to the bracket. The movement of the bracket drives the bracket to move, so that the second pulley on the horizontal plate can be attached to the inner wall of the manhole cover by the elastic force of the first spring. Then the first pulley will be attached to the bottom wall of the manhole cover.

[0020] 2. In this invention, a shelf is fixedly connected to the middle of the welding device body, and a first motor is fixedly installed at the middle of the bottom surface of the shelf. The first motor operates to make the main shaft rotate. The top end of the main shaft is fixedly connected to the rotating plate. The rotation of the main shaft drives the rotating plate to rotate. A second shaft pin is fixedly connected to the rotating plate, and a linkage plate is rotatably connected to the second shaft pin. The rotation of the rotating plate pushes the bracket on the first shaft pin to move through the linkage plate.

[0021] 3. In this invention, a through groove is provided on the shelf, and a shaft is slidably connected inside the through groove. The bottom end of the shaft is fixedly connected to the sleeve block, and the sleeve block is slidably connected to the limiting rod. The sleeve block is moved by the elastic force of the second spring on the limiting rod. The movement of the sleeve block causes the rotating wheel to fit against the inner wall of the manhole cover through the shaft. Then, the second motor operates to make the second pulley on the drive rod rotate. The rotation of the second pulley causes the first pulley to rotate through the transmission belt. The rotation of the first pulley drives the rotating wheel to rotate through the sleeve, thereby facilitating the rotation of the manhole cover and making it convenient for the welding machine to weld the manhole cover. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the welding device body;

[0024] Figure 2 This is a side view of the three-dimensional structure of the welding device body;

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the support plate;

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the slide rail;

[0027] Figure 5 This is a schematic diagram of the three-dimensional structure of the bracket;

[0028] Figure 6 A schematic diagram of the bracket's three-dimensional structure viewed from below;

[0029] Figure 7 This is a schematic diagram of the three-dimensional structure of the shelving unit;

[0030] Figure 8 This is a schematic diagram of the three-dimensional structure of the shelving unit viewed from below.

[0031] In the diagram: 1. Welding device body; 101. Control console; 102. Support plate; 103. Top plate; 104. Cylinder; 105. Hinge ring; 106. Welding machine; 2. Frame; 201. First pulley; 202. Slide rail; 203. Slider; 204. Bracket; 205. Slide groove; 206. Slide rod; 207. Support; 208. Horizontal plate; 209. Second pulley; 210. Ring; 211. Crossbar; 212. Snap ring; 213. First spring; 3. First shaft pin 301. Linkage plate; 302. Second shaft pin; 303. Rotating plate; 304. Main shaft; 305. First motor; 306. Shelf; 4. Through groove; 401. Shaft; 402. Rotating wheel; 403. Sleeve block; 404. Limiting rod; 405. Collar ring; 406. Second spring; 407. Sleeve; 408. First pulley; 409. Transmission belt; 410. Second pulley; 411. Drive rod; 412. Second motor; 413. Positioning plate; 414. Limiting wheel. Detailed Implementation

[0032] 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.

[0033] Example: Reference Figure 1 - Figure 8 The welding device for processing corrosion-resistant manhole covers shown includes a welding device body 1, a control console 101 fixedly mounted on the welding device body 1, a pair of support plates 102 fixedly connected to the rear side of the top surface of the welding device body 1, a top plate 103 fixedly connected to the top of the pair of support plates 102, a cylinder 104 fixedly mounted in the middle of the top plate 103, a hinge ring 105 rotatably connected to the bottom end of the cylinder 104, and a welding machine 106 fixedly mounted on the hinge ring 105; it also includes a positioning component, a tensioning component, and a driving component. The positioning component is set on the welding device body 1 for fixing the manhole cover, the tensioning component is set on the shelf 306 for moving the bracket 204, and the driving component is set on the shelf 306 for rotating the manhole cover.

[0034] Specifically, it should be noted that the welding machine 106, the first motor 305, and the second motor 412 are electrically connected to the control console 101 via wires. The specific working principle is based on existing technology and will not be elaborated further here.

[0035] In one embodiment of this invention, the positioning component includes a frame 2 fixedly mounted on the welding device body 1. A first pulley 201 is rotatably connected to the top of the frame 2. A pair of slide rails 202 are fixedly connected to the top surface of the welding device body 1. A slider 203 is slidably connected to the pair of slide rails 202. A bracket 204 is fixedly connected to the top of the slider 203. A groove 205 is provided on the bracket 204. A slide rod 206 is slidably connected inside the groove 205. A bracket 207 is fixedly connected to the top of the slide rod 206. A horizontal plate 208 is fixedly connected to one end of the bracket 207. A second pulley 209 is rotatably connected to both ends of the horizontal plate 208. The bottom end of the slide rod 206 is fixedly connected to the ring 210. The ring 210 is slidably connected to the crossbar 211. One end of the crossbar 211 is fixedly connected to the inner wall of the bracket 204. The other end of the crossbar 211 is fixedly connected to the retaining ring 212. A first spring 213 is sleeved on the crossbar 211. The two ends of the first spring 213 are fixedly connected to one side of the ring 210 and one side of the retaining ring 212, respectively.

[0036] Specifically, the bracket 204 is moved by the tensioning component. The bottom end of the bracket 204 is fixedly connected to the slider 203, and the slider 203 is fixedly connected to the slide rail 202. The movement of the bracket 204 causes the slider 203 to slide on the slide rail 202. A slide rod 206 is slidably connected inside the slide groove 205, and the top end of the slide rod 206 is fixedly connected to the bracket 207. The movement of the bracket 204 drives the bracket 207 to move, so that the second pulley 209 on the horizontal plate 208 can be attached to the inner wall of the manhole cover by the elastic force of the first spring 213. Then the first pulley 201 will be attached to the bottom wall of the manhole cover.

[0037] As one embodiment of this invention, the stretching assembly includes a first shaft pin 3 fixedly installed on the bottom surface of the bracket 204. A linkage plate 301 is rotatably connected to the first shaft pin 3. The other end of the linkage plate 301 is rotatably connected to a second shaft pin 302. The second shaft pin 302 is fixedly connected to one end of a rotating plate 303. The middle part of the rotating plate 303 is fixedly connected to a main shaft 304. The bottom end of the main shaft 304 is fixedly connected to the output end of a first motor 305. The first motor 305 is fixedly installed at the middle of the bottom surface of a shelf 306. The bottom end of the shelf 306 is fixedly connected to the welding device body 1.

[0038] Specifically, a shelf 306 is fixedly connected to the middle of the welding device body 1. A first motor 305 is fixedly installed at the middle of the bottom surface of the shelf 306. The first motor 305 operates to rotate the main shaft 304. The top of the main shaft 304 is fixedly connected to the rotating plate 303. The rotation of the main shaft 304 drives the rotating plate 303 to rotate. A second shaft pin 302 is fixedly connected to the rotating plate 303, and a linkage plate 301 is rotatably connected to the second shaft pin 302. The rotation of the rotating plate 303 pushes the bracket 204 on the first shaft pin 3 to move through the linkage plate 301.

[0039] In one embodiment of this invention, the driving assembly includes a pair of through slots 4 formed on the shelf 306. A shaft 401 is slidably connected inside the pair of through slots 4. A wheel 402 is rotatably connected to the top of the shaft 401. The bottom end of the shaft 401 is fixedly connected to a sleeve block 403. The sleeve block 403 is slidably connected to a limiting rod 404. One end of the limiting rod 404 is fixedly connected to the shelf 306, and the other end is fixedly connected to a collar 405. A second spring 406 is sleeved on the limiting rod 404. The two ends of the second spring 406 are fixedly connected to one side of the sleeve block 403 and one side of the collar 405, respectively. A pair of shafts 401 are provided, one of which is... A sleeve 407 is fitted onto the shelf 306. The top end of the sleeve 407 is fixedly connected to the rotating wheel 402, and the bottom end of the sleeve 407 is fixedly connected to the first pulley 408. A transmission belt 409 is fitted onto the first pulley 408, and the other end of the transmission belt 409 is fitted onto the second pulley 410. The second pulley 410 is fixedly connected to the top end of the drive rod 411, and the bottom end of the drive rod 411 is fixedly connected to the output end of the second motor 412. The second motor 412 is fixedly installed on the bottom surface of the positioning plate 413, and the other end of the positioning plate 413 is rotatably connected to the shaft 401. A limit wheel 414 is rotatably connected to the positioning plate 413, and the limit wheel 414 is attached to the shelf 306.

[0040] Specifically, a through groove 4 is provided on the shelf 306, and a shaft 401 is slidably connected inside the through groove 4. The bottom end of the shaft 401 is fixedly connected to the sleeve block 403, and the sleeve block 403 is slidably connected to the limiting rod 404. The sleeve block 403 is moved by the elastic force of the second spring 406 on the limiting rod 404. The movement of the sleeve block 403 causes the rotating wheel 402 to fit against the inner wall of the manhole cover through the shaft 401. Then, the second motor 412 operates to make the second pulley 410 on the drive rod 411 rotate. The rotation of the second pulley 410 causes the first pulley 408 to rotate through the transmission belt 409. The rotation of the first pulley 408 drives the rotating wheel 402 to rotate through the sleeve 407, thereby facilitating the rotation of the manhole cover and making it convenient for the welding machine 106 to perform welding work on the manhole cover.

[0041] The working principle of this invention is as follows: The bracket 204 is moved by the tensioning component. The bottom end of the bracket 204 is fixedly connected to the slider 203, and the slider 203 is fixedly connected to the slide rail 202. The movement of the bracket 204 causes the slider 203 to slide on the slide rail 202. A slide rod 206 is slidably connected inside the slide groove 205, and the top end of the slide rod 206 is fixedly connected to the bracket 207. The movement of the bracket 204 drives the bracket 207 to move, so that the second pulley 209 on the horizontal plate 208 can be attached to the inner wall of the manhole cover by the elastic force of the first spring 213. Then the first pulley 201 will be attached to the bottom wall of the manhole cover.

[0042] A shelf 306 is fixedly connected to the middle of the welding device body 1. A first motor 305 is fixedly installed at the middle of the bottom surface of the shelf 306. The first motor 305 operates to rotate the main shaft 304. The top end of the main shaft 304 is fixedly connected to the rotating plate 303. The rotation of the main shaft 304 drives the rotating plate 303 to rotate. A second shaft pin 302 is fixedly connected to the rotating plate 303, and a linkage plate 301 is rotatably connected to the second shaft pin 302. The rotation of the rotating plate 303 pushes the bracket 204 on the first shaft pin 3 to move through the linkage plate 301.

[0043] A through groove 4 is provided on the shelf 306, and a shaft 401 is slidably connected inside the through groove 4. The bottom end of the shaft 401 is fixedly connected to the sleeve block 403, and the sleeve block 403 is slidably connected to the limiting rod 404. The sleeve block 403 is moved by the elastic force of the second spring 406 on the limiting rod 404. The movement of the sleeve block 403 causes the rotating wheel 402 to fit against the inner wall of the manhole cover through the shaft 401. Then, the second motor 412 operates to make the second pulley 410 on the drive rod 411 rotate. The rotation of the second pulley 410 causes the first pulley 408 to rotate through the transmission belt 409. The rotation of the first pulley 408 drives the rotating wheel 402 to rotate through the sleeve 407, thereby facilitating the rotation of the manhole cover and making it convenient for the welding machine 106 to perform welding work on the manhole cover.

[0044] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding device for processing corrosion-resistant manhole covers, characterized in that, include: The welding device body (1) is fixedly mounted with a control console (101). A pair of support plates (102) are fixedly connected to the rear side of the top surface of the welding device body (1). A top plate (103) is fixedly connected to the top of the pair of support plates (102). A cylinder (104) is fixedly mounted in the middle of the top plate (103). A hinge ring (105) is rotatably connected to the bottom end of the cylinder (104). A welding machine (106) is fixedly mounted on the hinge ring (105). It also includes a positioning component, a tensioning component and a driving component. The positioning component is disposed on the welding device body (1) for fixing the manhole cover. The tensioning component is disposed on the shelf (306) for moving the bracket (204). The driving component is disposed on the shelf (306) for rotating the manhole cover.

2. The welding device for processing corrosion-resistant manhole covers according to claim 1, characterized in that: The positioning component includes a frame (2) fixedly installed on the welding device body (1), a first pulley (201) is rotatably connected to the top of the frame (2), a pair of slide rails (202) are fixedly connected to the top surface of the welding device body (1), a slider (203) is slidably connected to the pair of slide rails (202), and a bracket (204) is fixedly connected to the top of the slider (203).

3. The welding device for processing corrosion-resistant manhole covers according to claim 2, characterized in that: The bracket (204) is provided with a sliding groove (205), and a sliding rod (206) is slidably connected inside the sliding groove (205). A bracket (207) is fixedly connected to the top of the sliding rod (206), and a horizontal plate (208) is fixedly connected to one end of the bracket (207). Second pulleys (209) are rotatably connected to both ends of the horizontal plate (208).

4. The welding device for processing corrosion-resistant manhole covers according to claim 3, characterized in that: The bottom end of the slide bar (206) is fixedly connected to the ring (210), the ring (210) is slidably connected to the crossbar (211), one end of the crossbar (211) is fixedly connected to the inner wall of the bracket (204), and the other end of the crossbar (211) is fixedly connected to the retaining ring (212). A first spring (213) is sleeved on the crossbar (211), and the two ends of the first spring (213) are fixedly connected to one side of the ring (210) and one side of the retaining ring (212), respectively.

5. The welding device for processing corrosion-resistant manhole covers according to claim 3, characterized in that: The tensioning assembly includes a first axle pin (3) fixedly installed on the bottom surface of the bracket (204), a linkage plate (301) rotatably connected to the first axle pin (3), the other end of the linkage plate (301) rotatably connected to a second axle pin (302), the second axle pin (302) fixedly connected to one end of a rotating plate (303), and the middle part of the rotating plate (303) fixedly connected to the main shaft (304).

6. The welding device for processing corrosion-resistant manhole covers according to claim 5, characterized in that: The bottom end of the main shaft (304) is fixedly connected to the output end of the first motor (305). The first motor (305) is fixedly installed in the middle of the bottom surface of the shelf (306). The bottom end of the shelf (306) is fixedly connected to the welding device body (1).

7. The welding device for processing corrosion-resistant manhole covers according to claim 6, characterized in that: The drive assembly includes a pair of through slots (4) formed on the shelf (306), with a shaft (401) slidably connected inside the pair of through slots (4), a wheel (402) rotatably connected to the top of the shaft (401), and the bottom of the shaft (401) fixedly connected to the sleeve (403).

8. The welding device for processing corrosion-resistant manhole covers according to claim 7, characterized in that: The sleeve block (403) is slidably connected to the limiting rod (404). One end of the limiting rod (404) is fixedly connected to the shelf (306), and the other end of the limiting rod (404) is fixedly connected to a collar (405). A second spring (406) is sleeved on the limiting rod (404). The two ends of the second spring (406) are fixedly connected to one side of the sleeve block (403) and one side of the collar (405), respectively.

9. The welding device for processing corrosion-resistant manhole covers according to claim 8, characterized in that: A pair of shafts (401) are provided, one of which is fitted with a sleeve (407). The top end of the sleeve (407) is fixedly connected to the rotating wheel (402), and the bottom end of the sleeve (407) is fixedly connected to the first pulley (408). The first pulley (408) is fitted with a transmission belt (409), and the other end of the transmission belt (409) is fitted with a second pulley (410).

10. The welding device for processing corrosion-resistant manhole covers according to claim 9, characterized in that: The second pulley (410) is fixedly connected to the top of the drive rod (411). The bottom end of the drive rod (411) is fixedly connected to the output end of the second motor (412). The second motor (412) is fixedly installed on the bottom surface of the positioning plate (413). The other end of the positioning plate (413) is rotatably connected to the shaft (401). A limit wheel (414) is rotatably connected to the positioning plate (413). The limit wheel (414) is attached to the shelf (306).

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