Steel frame end face polishing device for civil steel structure building construction

Abstract

The utility model discloses a steel frame end face polishing device for civil steel structure building construction, which comprises a polishing disc, the outer side of the polishing disc is sleeved with a protective cover, the bottom of the protective cover is provided with an opening, a plurality of anti-abrasion balls are annularly embedded in the bottom of the protective cover, the bottom positions of the anti-abrasion balls are lower than the bottom position of the polishing disc, and the anti-abrasion balls are arranged to be matched with the polishing disc. The friction force between the protective cover and the end face of the steel frame can be reduced in the process of moving the protective cover, a circular plate is arranged above the protective cover, and the two sides of the bottom of the circular plate are each fixedly connected with two elastic guide mechanisms. According to the steel frame end face polishing device, through arrangement of a series of structures, a polishing area can be effectively shielded and protected in the steel frame end face polishing process, generated dust steel slag is sucked, filtered and collected, and harm to personnel due to the fact that the steel slag splashes to the personnel can be effectively reduced; and meanwhile, pollution caused by dust flying out to the environment is reduced, and the protection and environment protection effects in the polishing process are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel frame end face grinding, in particular to a steel frame end face grinding device for civil engineering steel structure construction. Background Art

[0002] Civil steel structure is a structure made of steel materials and is one of the main types of building structures. Its structure is mainly composed of beams, steel columns, steel frames and other components made of steel sections and steel plates. Rust removal and rust prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing are used. The components or parts are usually connected by welds, bolts or rivets. The end faces of the steel frame need to be polished before connection, so a steel frame end face polishing device is needed. In order to improve the flexibility of use, handheld steel frame end face polishing devices are widely used in the existing technology.

[0003] The handheld steel frame end face grinding device in the prior art only has a single grinding function, and its protective and environmental protection effect during the grinding process is not ideal. During the grinding process, a large amount of steel slag dust splashes outward, which can easily cause harm to personnel and pollute the external environment. It cannot meet the use requirements. Based on the above situation, this application proposes a steel frame end face grinding device for civil steel structure construction. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a steel frame end face grinding device for civil steel structure construction.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A steel frame end face grinding device for civil steel structure construction includes a grinding disc, a protective cover with an opening at the bottom is provided on the outer side of the grinding disc, a plurality of anti-wear balls are embedded in the bottom of the protective cover in a ring shape, the bottom position of the anti-wear balls is lower than the bottom position of the grinding disc, and the setting of the anti-wear balls can reduce the friction between the protective cover and the end face of the steel frame during the movement of the protective cover, a circular plate is provided above the protective cover, two elastic guide mechanisms are fixedly connected to the two sides of the bottom of the circular plate, the protective cover is set on the four elastic guide mechanisms, and the elastic guide mechanism has a vertical guiding effect on the circular plate, a connecting shaft is fixedly connected to the top center of the grinding disc, and the top end of the connecting shaft is movably extended to the top of the protective cover, the circular plate The plate rotating sleeve is arranged on the connecting shaft, and the top of the circular plate is fixedly connected to a driving motor which is fixedly connected to the output shaft and the bottom end of the connecting shaft. The driving motor and the connecting shaft cooperate to drive the grinding disc to rotate. An annular groove is provided on the outside of the circular plate, and a shielding ring which cooperates with the annular groove is provided on the fixed sleeve of the circular plate. The shielding ring is used to shield the annular groove. A suction and filtering mechanism connected to the inside of the annular groove is installed on the left side of the top of the circular plate. The bottom of the circular plate is annularly embedded with multiple extraction mechanisms connected to the inside of the annular groove. The bottom of the extraction mechanism extends into the protective cover. The grinding disc is located between the multiple extraction mechanisms. The suction and filtering mechanism cooperates with the extraction mechanism to suck, filter and collect the dust and steel slag around the grinding disc.

[0007] Preferably, the elastic guide mechanism includes a guide rod fixedly connected to the bottom of the circular plate, and the protective cover is slidably mounted on the four guide rods. The four guide rods have a vertical guiding effect on the circular plate. Four springs are fixedly connected between the top of the protective cover and the bottom of the circular plate. The springs are movably mounted on the corresponding guide rods. By utilizing the elastic characteristics of the springs, when the protective cover drives the anti-wear ball to contact the end face of the steel frame, the circular plate is provided with a distance space to continue to move vertically.

[0008] Preferably, the suction filtering mechanism includes a rectangular box fixedly connected to the left side of the top of the circular plate, the left side of the rectangular box is set as an opening and fixedly connected to a high-pressure air pump, the right side of the high-pressure air pump is an extraction end, and the interior of the rectangular box is sucked by the high-pressure air pump, and the bottom of the rectangular box is embedded and fixed with a conical cover connected to its interior, the circular plate is fixedly sleeved on the conical cover, and the bottom of the conical cover is connected to the interior of the annular groove, and an L-shaped filter is movable in the rectangular box. The L-shaped filter is used to filter and block the sucked dust and steel slag, and the top of the L-shaped filter is fixedly connected to a T-shaped connecting block magnetically fixed to the top of the rectangular box, and the top of the T-shaped connecting block is fixedly connected to a pull ring, which can be used to move the L-shaped filter out of the interior of the rectangular box by cooperating with the T-shaped connecting block.

[0009] Preferably, the extraction mechanism includes a telescopic hose embedded and fixed in the bottom of the circular plate and connected to the inside of the annular groove. The bottom end of the telescopic hose is connected and fixed with an L-shaped tube. The telescopic characteristics of the telescopic hose are used to provide the circular plate with a distance space for continued vertical movement. The bottom end of the L-shaped tube extends into the protective cover and is set to be inclined inward. The protective cover is fixed on multiple L-shaped tubes. The grinding disc is located between the multiple L-shaped tubes, and suction is performed around the grinding disc through the multiple L-shaped tubes.

[0010] Preferably, a battery and a U-shaped handle are fixedly connected to the top of the circular plate, the battery is electrically connected to the drive motor and the high-pressure air pump, the battery supplies power to the drive motor and the high-pressure air pump, and the battery and the drive motor are both located in the U-shaped handle.

[0011] Preferably, the protective cover is made of a transparent material, and two guide grooves are provided on both sides of the top of the protective cover, and the inner walls of the guide grooves are in movable contact with the outer sides of the corresponding guide rods.

[0012] Preferably, a through hole is provided on the top inner wall of the rectangular box, the inner wall of the through hole is movably contacted with the outer side of the T-shaped connecting block, the distance between the front inner wall and the rear inner wall of the through hole is the same as the distance between the front side and the rear side of the L-shaped filter screen, the through hole can allow the L-shaped filter screen to pass through, two first magnet blocks are fixedly connected to the top inner wall of the T-shaped connecting block, two grooves are provided on the top of the rectangular box, and the second magnet is fixedly connected to the bottom inner wall of the groove, the first magnet is movably arranged in the corresponding groove and adsorbed with the second magnet, and the adsorption force of the first magnet and the second magnet can be used to fix the T-shaped connecting block and the L-shaped filter screen.

[0013] Compared with the existing technology, the beneficial effects of the utility model are:

[0014] 1. The driving motor, connecting shaft and grinding disc are used to grind the end surface of the steel frame;

[0015] 2. The protective cover, annular groove, extraction mechanism and suction and filtration mechanism cooperate to effectively shield the grinding area during the grinding process, and collect the generated dust and slag by suction and filtration, which can effectively reduce the harm caused by the slag splashing onto personnel and reduce the pollution caused by the dust flying outward to the environment, thus achieving the effect of environmental protection;

[0016] 3. The elastic guide mechanism and protective cover can be used to store and shield the grinding disc after grinding, thus improving the safety during carrying.

[0017] The utility model is capable of effectively shielding and protecting the grinding area during the grinding of the steel frame end face through the arrangement of a series of structures, and can suction, filter and collect the generated dust and steel slag, which can effectively reduce the harm caused to personnel by steel slag splashing onto them, and at the same time reduce the pollution to the environment caused by dust flying outward, thereby achieving a protective and environmentally friendly effect during the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a steel frame end face grinding device for civil steel structure construction proposed by the present invention;

[0019] Figure 2 This is a schematic diagram of the main cross-sectional structure of a steel frame end face grinding device for civil steel structure construction proposed by the present invention;

[0020] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A.

[0021] In the figure: 100, grinding disc; 1, protective cover; 2, circular plate; 3, annular groove; 4, guide rod; 5, spring; 6, anti-wear ball; 7, L-shaped tube; 8, telescopic hose; 9, connecting shaft; 10, driving motor; 11, rectangular box; 12, conical cover; 13, L-shaped filter; 14, high-pressure air pump; 15, T-shaped connecting block; 16, shielding ring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figure 1-3A steel frame end face grinding device for civil steel structure construction includes a grinding disc 100. The outer side of the grinding disc 100 is provided with a protective cover 1 with an opening at the bottom. The bottom of the protective cover 1 is annularly embedded with a plurality of anti-wear balls 6. The bottom position of the anti-wear balls 6 is lower than the bottom position of the grinding disc 100. The setting of the anti-wear balls 6 can reduce the friction between the protective cover 1 and the end face of the steel frame during the movement of the protective cover 1. A circular plate 2 is provided above the protective cover 1. Two elastic guide mechanisms are fixedly connected to both sides of the bottom of the circular plate 2. The protective cover 1 is sleeved on the four elastic guide mechanisms. The elastic guide mechanism includes a guide fixedly connected to the bottom of the circular plate 2. Towards the rod 4, the protective cover 1 is slidably sleeved on the four guide rods 4, wherein the protective cover 1 is made of transparent material. Setting the protective cover 1 to a transparent material is convenient for viewing the situation inside it. Two guide grooves are provided on both sides of the top of the protective cover 1. The inner wall of the guide groove is in movable contact with the outer side of the corresponding guide rod 4. The four guide rods 4 have a vertical guiding effect on the circular plate 2. Four springs 5 are fixedly connected between the top of the protective cover 1 and the bottom of the circular plate 2. The springs 5 are movably sleeved on the corresponding guide rods 4. By utilizing the telescopic characteristics of the springs 5, when the protective cover 1 drives the anti-wear balls 6 to contact the end face of the steel frame, the circular plate 2 is provided with a distance space to continue to move vertically;

[0024] The top center of the grinding disc 100 is fixedly connected with a connecting shaft 9, and the top end of the connecting shaft 9 is movably extended to the top of the protective cover 1, wherein a reserved hole is reserved on the protective cover 1 for the connecting shaft 9 to move through, and the circular plate 2 is rotatably sleeved on the connecting shaft 9, wherein a circular hole is opened on the top of the circular plate 2, and a bearing is fixedly sleeved in the circular hole. The inner side of the inner ring of the bearing is fixedly connected to the outer side of the connecting shaft 9, and the bearing plays the role of rotatable installation of the connecting shaft 9. The top of the circular plate 2 is fixedly connected with a drive motor 10 that is fixedly connected to the output shaft and the bottom end of the connecting shaft 9. The drive motor 10 and the connecting shaft 9 cooperate to drive the grinding disc 100 to rotate, and the outer side of the circular plate 2 An annular groove 3 is opened, and a blocking ring 16 that cooperates with the annular groove 3 is fixedly sleeved on the circular plate 2. The blocking ring 16 is used to block the annular groove 3. A suction filtering mechanism connected to the inside of the annular groove 3 is installed on the top left side of the circular plate 2. The suction filtering mechanism includes a rectangular box 11 fixedly connected to the left side of the top of the circular plate 2. The left side of the rectangular box 11 is set as an opening and fixedly connected to a high-pressure air pump 14. The right side of the high-pressure air pump 14 is an extraction end. The interior of the rectangular box 11 is sucked by the high-pressure air pump 14. The bottom of the rectangular box 11 is embedded with a conical cover 12 connected to its interior. The circular plate 2 is fixedly sleeved on the conical cover 12, wherein the rectangular box 11 The bottom of the rectangular box 11 and the top of the circular plate 2 are both provided with conical holes for fixing the conical cover 12. The bottom of the conical cover 12 is connected to the inside of the annular groove 3. An L-shaped filter screen 13 is movably sleeved in the rectangular box 11. The front inner wall and the rear inner wall of the rectangular box 11 are in active contact with the front and rear sides of the L-shaped filter screen 13 respectively. The L-shaped filter screen 13 is used to filter and block the sucked dust and steel slag. The top of the L-shaped filter screen 13 is fixedly connected to a T-shaped connecting block 15 which is magnetically fixed to the top of the rectangular box 11. A through hole is provided on the top inner wall of the rectangular box 11. The inner wall of the through hole is in active contact with the outer side of the T-shaped connecting block 15. The front inner wall and the rear inner wall of the through hole are in active contact with the outer side of the T-shaped connecting block 15. The distance between the side inner walls is the same as the distance between the front and rear sides of the L-shaped filter screen 13. The through hole can allow the L-shaped filter screen 13 to pass through. Two first magnet blocks are fixedly connected to the top inner wall of the T-shaped connecting block 15. Two grooves are provided on the top of the rectangular box 11. The second magnet is fixedly connected to the bottom inner wall of the groove. The first magnet is movably arranged in the corresponding groove and adsorbed with the second magnet. The adsorption force of the first magnet and the second magnet can be used to fix the T-shaped connecting block 15 and the L-shaped filter screen 13. A pull ring is fixedly connected to the top of the T-shaped connecting block 15. The L-shaped filter screen 13 can be removed from the inside of the rectangular box 11 by cooperating with the T-shaped connecting block 15 through the pull ring.

[0025] The bottom of the circular plate 2 is annularly embedded with multiple extraction mechanisms connected to the inside of the annular groove 3. The bottom of the extraction mechanism extends into the protective cover 1. The grinding disc 100 is located between the multiple extraction mechanisms. The extraction mechanism includes a telescopic hose 8 embedded and fixed at the bottom of the circular plate 2 and connected to the inside of the annular groove 3. The bottom end of the telescopic hose 8 is connected and fixed with an L-shaped tube 7. The telescopic characteristics of the telescopic hose 8 are used to provide the circular plate 2 with a distance space for continued vertical movement. The bottom end of the L-shaped tube 7 extends into the protective cover 1 and is set to be tilted inward. The protective cover 1 is fixedly sleeved on the multiple L-shaped tubes 7, wherein the top inner wall of the protective cover 1 is provided with a plurality of mounting holes for fixing the L-shaped tubes 7. The grinding disc 100 is located between the multiple L shaped tubes 7, suction is carried out around the grinding disc 100 through multiple L-shaped tubes 7, and a battery and a U-shaped handle are fixedly connected to the top of the circular plate 2. The battery is electrically connected to the drive motor 10 and the high-pressure air pump 14, and the battery supplies power to the drive motor 10 and the high-pressure air pump 14. The battery and the drive motor 10 are both located in the U-shaped handle; the utility model is set up through a series of structures to effectively shield and protect the grinding area during the grinding of the steel frame end face, and to suction, filter and collect the generated dust and steel slag, which can effectively reduce the damage to personnel caused by steel slag splashing onto personnel, and at the same time reduce the pollution to the environment caused by dust flying outward, thereby achieving a protective and environmental protection effect during the grinding process.

[0026] Working principle: when in use, the entire device can be taken up by the U-shaped handle. When grinding the end face of the steel frame, the entire device is moved to the position of the end face of the steel frame. When multiple anti-wear balls 6 are in contact with the end face of the steel frame, continue to press the U-shaped handle downward to drive the circular plate 2 to move downward. The circular plate 2 drives the four guide rods 4 to slide in the corresponding guide grooves and compress the springs 5. The circular plate 2 presses the protective cover 1 downward through the four springs 5, and the protective cover 1 squeezes the multiple anti-wear balls 6 downward, and utilizes the squeezing force to achieve a stable connection between the protective cover 1 and the end face of the steel frame. While the circular plate 2 moves downward, it also drives the grinding disc 100 to move out of the protective cover 1 through the connecting shaft 9. When the grinding disc 100 contacts the end face of the steel frame, stop pressing the U-shaped handle, and then you can start the drive motor 10 and the high-pressure air pump 14. When the drive motor 10 is turned on, it drives the grinding disc 100 to rotate through the connecting shaft 9 to perform the grinding operation on the end face of the steel frame;

[0027] The L-shaped filter screen 13 is used to filter the dust and slag in the air, and the L-shaped filter screen 13 is used to filter the dust and slag in the air.

[0028] After grinding for a period of time, when the filtered dust and slag need to be cleaned, the pull ring can be directly pulled upwards to drive the L-shaped filter 13 to be moved out of the rectangular box 11 through the T-shaped connecting block 15. When the L-shaped filter 13 is moved out, the dust and slag blocked by the filter are taken out, and the dust and slag can be cleaned. After cleaning, the L-shaped filter 13 can be moved back into the rectangular box 11 and wait for the next use.

[0029] After the grinding is completed, the downward pressure on the U-shaped handle can be released. At this time, the elastic force of the spring 5 in the compressed state drives the circular plate 2 to move upward, and the circular plate 2 drives the grinding disc 100 to move upward through the connecting shaft 9 and is stored in the protective cover 1. The protective cover 1 covers the grinding disc 100 again. By storing and covering the grinding disc 100 after use, the sides of the grinding disc 100 can be protected, thereby improving safety during carrying.

[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steel frame end face grinding device for civil engineering steel structure construction, comprising a grinding disc (100), characterized in that: The outer side of the grinding disc (100) is provided with a protective cover (1) with an opening at the bottom. The bottom of the protective cover (1) is annularly embedded with a plurality of anti-wear balls (6). The bottom position of the anti-wear balls (6) is lower than the bottom position of the grinding disc (100). A circular plate (2) is provided above the protective cover (1). Two elastic guide mechanisms are fixedly connected to both sides of the bottom of the circular plate (2). The protective cover (1) is sleeved on the four elastic guide mechanisms. A connecting shaft (9) is fixedly connected to the center of the top of the grinding disc (100). The top end of the connecting shaft (9) movably extends to the top of the protective cover (1). The circular plate (2) rotates around the sleeve. The circular plate (2) is provided on the connecting shaft (9), the top of the circular plate (2) is fixedly connected to a driving motor (10) whose output shaft is fixedly connected to the bottom end of the connecting shaft (9), an annular groove (3) is provided on the outer side of the circular plate (2), a shielding ring (16) matched with the annular groove (3) is fixedly sleeved on the circular plate (2), a suction filtering mechanism connected to the inside of the annular groove (3) is installed on the left side of the top of the circular plate (2), a plurality of extraction mechanisms connected to the inside of the annular groove (3) are embedded in the bottom of the circular plate (2) in an annular shape, the bottom of the extraction mechanism extends into the protective cover (1), and the grinding disc (100) is located between the plurality of extraction mechanisms.

2. A steel frame end face grinding device for civil engineering steel structure construction according to claim 1, characterized in that: The elastic guide mechanism comprises a guide rod (4) fixedly connected to the bottom of the circular plate (2); the protective cover (1) is slidably sleeved on the four guide rods (4); four springs (5) are fixedly connected between the top of the protective cover (1) and the bottom of the circular plate (2); and the springs (5) are movably sleeved on the corresponding guide rods (4).

3. The steel frame end face grinding device for civil engineering steel structure construction according to claim 1 is characterized in that: The suction filtering mechanism comprises a rectangular box (11) fixedly connected to the left side of the top of the circular plate (2); the left side of the rectangular box (11) is set as an opening and fixedly connected to a high-pressure air pump (14); the right side of the high-pressure air pump (14) is an extraction end; the bottom of the rectangular box (11) is fixedly mounted with a conical cover (12) connected to the interior thereof; the circular plate (2) is fixedly sleeved on the conical cover (12); the bottom of the conical cover (12) is connected to the interior of the annular groove (3); an L-shaped filter screen (13) is movably sleeved in the rectangular box (11); the top of the L-shaped filter screen (13) is fixedly connected to a T-shaped connecting block (15) fixedly fixed to the top of the rectangular box (11) by magnetic attraction; the top of the T-shaped connecting block (15) is fixedly connected to a pull ring.

4. The steel frame end face grinding device for civil engineering steel structure construction according to claim 1, characterized in that: The extraction mechanism comprises a telescopic hose (8) embedded and fixed at the bottom of the circular plate (2) and connected to the inside of the annular groove (3); the bottom end of the telescopic hose (8) is connected and fixed with an L-shaped tube (7); the bottom end of the L-shaped tube (7) extends into the protective cover (1) and is arranged to be inclined inward; the protective cover (1) is fixedly sleeved on the plurality of L-shaped tubes (7); and the grinding disc (100) is located between the plurality of L-shaped tubes (7).

5. The steel frame end face grinding device for civil engineering steel structure construction according to claim 3, characterized in that: A battery and a U-shaped handle are fixedly connected to the top of the circular plate (2); the battery is electrically connected to the drive motor (10) and the high-pressure air pump (14); and both the battery and the drive motor (10) are located inside the U-shaped handle.

6. The steel frame end face grinding device for civil engineering steel structure construction according to claim 2, characterized in that: The protective cover (1) is made of a transparent material. Two guide grooves are provided on both sides of the top of the protective cover (1). The inner walls of the guide grooves are in movable contact with the outer sides of the corresponding guide rods (4).

7. The steel frame end face grinding device for civil engineering steel structure construction according to claim 3, characterized in that: A through hole is provided on the top inner wall of the rectangular box (11), the inner wall of the through hole is in movable contact with the outer side of the T-shaped connecting block (15), the distance between the front inner wall and the rear inner wall of the through hole is the same as the distance between the front side and the rear side of the L-shaped filter (13), two first magnet blocks are fixedly connected to the top inner wall of the T-shaped connecting block (15), two grooves are provided on the top of the rectangular box (11), and the bottom inner walls of the grooves are fixedly connected to the second magnets, and the first magnets are movably sleeved in the corresponding grooves and adsorbed with the second magnets.

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