Steel structure building paint surface repairing device

Abstract

The invention relates to a steel structure building paint surface repairing device which is matched with a rust removal device, an air injection part is further arranged on the basis of the rust removal device, the rust removal device can move on a steel beam and work under the assistance of airflow, the airflow can sequentially pass through the rust removal device and the air injection part, and the air injection part is used for being connected with a paint source. Compared with the prior art, in the process that a worker operates the moving part on the ground to move on the steel beam, polishing and automatic paint repairing of the surface of the steel beam can be achieved, and compared with a current manual rust removal operation mode, higher paint repairing efficiency can be guaranteed; and meanwhile, the safety of personnel can be ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of steel building maintenance equipment, and in particular relates to a paint surface repair device for a steel structure building. Background Art

[0002] Steel-concrete building structures often develop surface rust over time, necessitating the removal of rust from the beams and columns (both I-beams) before repainting. Traditionally, this process involves manual repainting of the steel structure surface. However, this manual process is laborious and cumbersome, as well as dangerous. Summary of the Invention

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0004] In view of the following technical problems in the prior art: the prior art lacks a device that can replace manual rust removal of beams and columns of steel structures. To solve this technical problem, the present invention provides the following technical solutions:

[0005] A rust removal device for a steel structure building, comprising:

[0006] A moving portion configured to move along the length of the steel beam;

[0007] A first grinding part and a second grinding part, both of which are provided on the movable part and are configured to act on the bottom and side of the steel beam respectively, and at least the second grinding part is in active cooperation with the movable part;

[0008] The energy supply part is relatively independently arranged from the moving part. The first grinding part, the second grinding part and the moving part are all moved by the energy supply part. The second grinding part moves on the moving part through the energy supply part.

[0009] As an optimal technical solution for a rust removal device for steel structure buildings, the moving part includes a base and a contact wheel rotatably arranged on the base, the contact wheel is used to contact the steel beam, and the position configuration is adjustable on the base, the contact wheel is provided with a power-assisting element that is moved by airflow, and the energy supply part is used to provide airflow and is connected to the power-assisting element.

[0010] As an optimal technical solution for a rust removal device for steel structure buildings, it also includes a supporting part and a pushing part that is moved by airflow. The supporting part is movably arranged on the base and is provided with an elastic reset relationship on the base. The pushing part acts on the supporting part and cooperates with the air circuit of the assisting element.

[0011] As an optimal technical solution for a rust removal device for steel structure buildings, the first grinding part and the second grinding part both work in a rotating state, the first grinding part is rotatably set on the base, and the second grinding part is rotatably set on the support part. When the support part moves to a fixed position on the base, the first grinding part and the second grinding part are transmission-coordinated.

[0012] As an optimal technical solution for a rust removal device for steel structure buildings, it also includes a transmission part, the support part rotates in conjunction with the first grinding part, the transmission part rotates in conjunction with the support part, and cooperates with the pulley between the second grinding part, and forms a contact transmission with the first transmission part.

[0013] As an optimal technical solution for a rust removal device for steel structure buildings, a pneumatic motor is fixedly mounted on at least one of the support parts, the second polishing part is arranged at the output end of the pneumatic motor, and the pneumatic motor is connected to the air circuit of the power assist element to form a branch coordination.

[0014] As an optimal technical solution for a rust removal device for steel structure buildings, the first grinding part and the second grinding part are both constructed with interconnected storage chambers and air suction holes, a guide chamber is provided on the base, and an exhaust element located in the guide chamber is fixedly connected to the first grinding part, and the storage chamber is connected to the guide chamber.

[0015] As an optimal technical solution for a rust removal device for steel structure buildings, a guide area is constructed in the support part, which is connected to the guide cavity. The pneumatic motor output shaft is a hollow structure, and its two ends extend into the storage cavity and the guide area respectively.

[0016] As an optimal technical solution for a rust removal device for steel structure buildings, a delivery pipe is connected between the support portion and the base portion, and the guide area and the diversion cavity are kept in communication through the delivery pipe, and the delivery pipe is an elastic structure.

[0017] A steel structure building paint repair device is used in conjunction with the above-mentioned steel structure building rust removal device and includes an air nozzle configured to move synchronously with the base. The air flow flows out of the pneumatic motor and passes through the air nozzle. The air nozzle is used to connect to a paint source.

[0018] The rust removal and paint repair device for steel structure buildings provided by the present invention has the following beneficial effects:

[0019] 1 The present invention cooperates with the first grinding part and the second grinding part, so that when a person operates the moving part on the ground to move on the steel beam, the surface of the steel beam can be polished. Compared with the current manual rust removal method, the present invention can ensure higher rust removal efficiency and also ensure the safety of personnel.

[0020] 2 The present invention utilizes the structural coordination of the first grinding part and the second grinding part, so that dust can be automatically collected during the rust removal process, thereby reducing the pollution caused by the rust removal process to the surrounding environment.

[0021] 3. The present invention can automatically spray paint the rust-removed parts during the rust removal process through the cooperation of the jet parts, thereby further ensuring the full functionality of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0023] Figure 1 It is a perspective view of the first embodiment of the present invention.

[0024] Figure 2 For about Figure 1 Another perspective view of .

[0025] Figure 3 For about Figure 1 A separate illustration of the structure shown in the middle section.

[0026] Figure 4 For about Figure 3 The exploded view and three-dimensional cut-away view of the structure shown in the middle part.

[0027] Figure 5 This is a schematic three-dimensional cutout diagram of the first polishing portion in an embodiment of the present invention.

[0028] Figure 6 For about Figure 1 A separate display diagram of the structure shown in another part.

[0029] Figure 7 Schematic diagram of the operation of the pushing portion in an embodiment of the present invention.

[0030] Figure 8 This is a disassembled diagram of the contact wheel in an embodiment of the present invention and a schematic diagram of its coordination with the power assist element.

[0031] Figure 9 Schematic diagram of the gas path connection between some structures in the first embodiment of the present invention.

[0032] Figure 10 FIG. 2 is a schematic diagram of an application of the first embodiment of the present invention.

[0033] Figure 11 For about Figure 10 Another perspective view of .

[0034] Figure 12 This is a schematic diagram of another application of the first embodiment of the present invention.

[0035] Figure 13 For about Figure 12 Another perspective view of .

[0036] Figure 14 It is a partial structural diagram and application diagram of the second embodiment of the present invention.

[0037] Figure 15 Schematic diagram of the gas path connection between some structures in the second embodiment of the present invention.

[0038] Figure 16 It is another structural schematic diagram of the second grinding part in the embodiment of the present invention.

[0039] Figure 17 It is a schematic diagram of the arrangement of multiple power-assisting elements on the base in the implementation of the present invention.

[0040] Figure 18 Schematic diagram of airflow distribution of two groups of power-assisting elements in an embodiment of the present invention.

[0041] Reference numerals:

[0042] 1. Moving part; 101. Base; 102. Contact wheel; 102a. Shaft; 102b. Wheel body; 2. First grinding part; 3. Second grinding part; 4. Support part; 5. Transmission part; 6. Pneumatic motor; 7. Storage chamber; 8. Air suction hole; 9. Diversion chamber; 10. Guide area; 11. Delivery pipe; 12. Slider; 13. Threaded rod; 14. Rotating nozzle; 15. Pipe joint; 16. Air cylinder; 17. Piston rod; 18. Support plate; 19. Spring sheet; 20. Sandpaper; 21. First solenoid valve; 22. First pipeline; 23. Second pipeline; 24. Impeller; 25. Air nozzle; 26. Third pipeline; 27. Second solenoid valve. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0044] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0045] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0046] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0047] Example 1

[0048] Reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, provides a rust removal device for steel structure buildings, comprising the following parts:

[0049] The structure of the moving part 1 can ensure that it can move along the length of the steel beam;

[0050] The first grinding part 2 and the second grinding part 3 are both provided on the movable part 1 and are used to grind the bottom and side of the steel beam respectively, thereby completing the rust removal work. The number of the second grinding parts 3 is at least two, so as to act on both sides of the steel beam respectively, and the second grinding parts 3 can be movable relative to the movable part 1;

[0051] The energy supply part is relatively independent from the moving part 1. The first grinding part 2, the second grinding part 3 and the moving part 1 are all powered by the energy supply part to move. The second grinding part 3 is also powered by the energy supply part to move on the moving part 1.

[0052] The present invention is in normal state Figure 1 、 Figure 2 In the state shown, the two second moving parts 1 are separated, which makes it easy to take the moving part 1 from the steel beam. Figure 10 and Figure 11By setting the moving part 1 on the steel beam, the first grinding part 2 contacts the bottom of the steel beam, and the energy supply part provides power to move the two second grinding parts 3 on the moving part 1 to a state of being close to each other, thereby forming contact with both sides of the steel beam respectively, thereby achieving rust removal on the surface of the steel beam;

[0053] In the above process, the energy supply unit is operated by a person standing on the ground, thereby controlling the movement of the moving unit 1 on the steel beam, the work of the first grinding unit 2 and the second grinding unit 3. After the rust removal work is completed, the two second grinding units 3 are controlled to move to the moving unit 1. Figure 1 The state shown in FIG1 is obtained, and the movable part 1 can be removed from the steel beam. During the whole process, the present invention can automatically remove rust from multiple surfaces of the steel beam and move on the steel beam at the same time, thereby ensuring the efficiency of rust removal. At the same time, compared with the purely manual rust removal method in the prior art, the rust removal process of the present invention is safer.

[0054] The above is a basic description of the present invention. The specific structure of the present invention will be further introduced below with reference to more drawings. Specifically:

[0055] Reference Figure 1-3 , the moving part 1 includes a base 101 and a contact wheel 102 rotatably arranged on the base 101, the contact wheel 102 is used to contact the steel beam, the number of the contact wheels 102 is multiple, and 4 are configured in the figure. For reference, the setting position of the contact wheel 102 on the base 101 is adjustable. When multiple contact wheels 102 are brought together, they can be matched and clamped on the steel beam to realize the setting of the moving part 1 on the steel beam. On the contrary, when a sufficient distance is maintained between the multiple contact wheels 102, the clamping relationship can be released, thereby facilitating the removal of the moving part 1 from the steel beam. At least two of the contact wheels 102 are provided with power-assisting elements that can be rotated by airflow. As for the function of the energy supply part, it is used to provide high-pressure airflow. The energy supply part can adopt elements such as an air pump and be connected to the power-assisting element through a longer connecting pipe. When the energy supply part is operated to provide airflow to the power-assisting element, the rotation of the contact wheel 102 can be realized to realize the movement of the moving part 1 on the steel beam;

[0056] Furthermore, regarding the adjustment method of the contact wheel 102, as shown in FIG. Figure 6 As shown, the number of sliders 12 corresponding to the number of contact wheels 102 can be slidably set on the base 101, and the contact wheels 102 are rotatably set on the sliders 12. The base 101 is also rotatably provided with a threaded rod 13, which is threadedly matched with the slider 12, so that the rotation process of the threaded rod 13 can be adjusted to realize the movement of the slider 12 on the base 101, that is, the position adjustment process of the contact wheel 102 on the base 101 is realized, as shown in FIG. Figure 8As shown, the contact wheel 102 is composed of a shaft 102a and a wheel body 102b. The wheel body 102b is set on the shaft 102a by a long bolt, so that the wheel body 102b can be replaced. When encountering steel beams of different thicknesses, the working process of the present invention can be taken into account. The surface of the wheel body 102b is a rubber layer with textures, which can reduce or avoid the phenomenon of slipping on the surface of the steel beam; the power-assisting element here can be a rotating nozzle 14, which is coaxially fixedly connected to the shaft 102a. A pipe joint 15 for connecting to an external pipeline is rotatably provided at one end of the rotating nozzle 14. The pipeline for receiving the airflow from the energy supply unit is connected to the pipe joint 15 to supply air to the rotating nozzle 14.

[0057] Reference Figure 1 and Figure 2 Regarding the activity mode of the second grinding part 3 on the base 101, specifically, the present invention further includes a support part 4 and a pushing part that is moved by airflow. The second grinding part 3 is arranged on the support part 4, and the support part 4 is movably arranged on the base 101, and an elastic reset relationship is configured on the base 101, so that in normal state, the second grinding part 3 and the second grinding part 3 are in a fixed position on the base 101 (i.e. Figure 1 、 Figure 2 The pushing portion is provided on the base 101 and is used to push the supporting portion 4. The pushing portion pushes the supporting portion 4 under the action of the airflow, so that the supporting portion 4 breaks free from the elastic force and moves, thereby maintaining the movement process of the second grinding portion 3. When the thrust is released, it returns to its original position under the action of the elastic force. An air path matching relationship is established between the pushing portion and the assisting element. The pushing portion shares the same air path with the first grinding portion 2 and the second grinding portion 3, thereby achieving rust removal by receiving the airflow from the energy supply portion. The assisting element is connected to the energy supply portion through another air path, and the two air paths are respectively put into operation, thereby achieving the grinding and moving processes respectively.

[0058] For the structure of the driving part, such as Figure 2 and Figure 7 As shown, it includes an air cylinder 16, a piston rod 17 is arranged in the air cylinder 16, the air cylinder 16 is fixedly set on the base 101, and air inlet valves are provided near both ends of the air cylinder 16, and the air inlet valves are used to connect to external pipelines. As shown by the arrows in the figure, the air flow from the energy supply part enters the air cylinder 16 through one of the air inlet valves, thereby pushing the internal piston rod 17. When the piston rod 17 moves to avoid the other air inlet valve, the air flow flows out of the air cylinder 16, achieving the effect that the piston rod 17 is automatically pushed out when the air flow passes through the air cylinder 16. The end of the piston rod 17 is connected to a support plate 18, which is used to contact the support part 4, so that the support part 4 can be pushed when the piston rod 17 is pushed out;

[0059] Further, refer to Figure 1 、 Figure 2 as well as Figure 10 and Figure 11 , the first grinding part 2 and the second grinding part 3 are both working in a rotating state. Specifically, the first grinding part 2 is rotatably set on the base 101, and the second grinding part 3 is also set on the support part 4 in a rotating manner. When the support part 4 moves to a fixed position on the base 101 (keeping the second grinding part 3 in contact with the side of the steel beam, that is, Figure 10 As shown), the first grinding part 2 and the second grinding part 3 form a transmission cooperation relationship. Therefore, when configuring the driving mode of the first grinding part 2 and the second grinding part 3, it is only necessary to configure the driving force for one of them, so that the transmission can be used to achieve the synchronous operation of the first grinding part 2 and the second grinding part 3;

[0060] Specifically, for the structural configuration of the first grinding part 2 and the second grinding part 3, as shown in FIG. Figure 1-3 as well as Figure 5 As shown, the first grinding part 2 and the second grinding part 3 are both of a rotary structure, and grinding elements are provided on their circumferences. Specifically, a plurality of spring sheets 19 are arranged in an array on the circumferences of both, and sandpaper 20 is adhered to the spring sheets 19. In addition, a spring sheet 19 and sandpaper 20 are also provided at the end of the second grinding part 3. When the first grinding part 2 rotates, the bottom of the steel beam is ground, and when the second grinding part 3 rotates, the three inner concave surfaces of the side of the steel beam are ground. The sandpaper 20 is arranged on the spring sheet 19 by adhesion, thereby ensuring that it can be replaced. At the same time, when encountering a larger or smaller steel beam, the size adaptation effect can be achieved by replacing sandpaper 20 of different sizes.

[0061] Further, for the transmission mode between the first grinding part 2 and the second grinding part 3, refer to Figure 3-5 The present invention also includes a transmission part 5, the support part 4 and the first grinding part 2 rotate together, through the elastic reset relationship, when normal, the support is in Figure 1In the state shown, the rotation axis of the support part 4 on the first grinding part 2 is consistent with the rotation axis of the first grinding part 2 on the base 101. Specifically, one end of the support part 4 is rotatably sleeved on the first grinding part 2, and the transmission part 5 is rotatably matched with the support part 4. The rotation axis is consistent with the rotation axis of the first grinding part 2 on the base 101. The transmission part 5 also forms a pulley matching relationship with the second grinding part 3 (which can be a chain belt matching gear plate, a chain belt matching sprocket or a steel belt matching wheel), so that the second grinding part 3 and the transmission part 5 are matched. A synchronous rotation relationship is always formed, and a contact transmission is formed between the transmission part 5 and the first transmission part 5. Specifically, when the support part 4 moves to keep the transmission part 5 in contact with the first grinding part 2, a transmission relationship is formed between the transmission part 5 and the first grinding part 2. At this time, the second grinding part 3 is in full contact with the side of the steel beam at the same time. Therefore, when the support part 4 moves to keep the second grinding part 3 in full contact with the side of the steel beam, the first grinding part 2 and the second grinding part 3 form a transmission effect. When one of them is driven to rotate, grinding and rust removal can be performed.

[0062] like Figure 12 and Figure 13 As shown, here, when other steel beams are welded to the steel beam being ground, through the rotational cooperation relationship between the support part 4 and the first grinding part 2 and the elastic reset relationship of the support part 4, when the moving part 1 passes through the place where other steel beams are welded during movement, the support part 4 can swing down under the action of the obstruction to avoid the steel beam, so that the support part 4 and the second grinding part 3 can bypass the steel beam that causes the obstruction together. After the whole passes this section, the support part 4 is reset to the position under the elastic reset relationship. Figure 1 In the state shown, the structure ensures that the moving part 1 can move smoothly on the steel beam;

[0063] like Figure 3-5 As shown, one side surface of the transmission part 5 and one end surface of the first grinding part 2 are both friction surface structures. When the two are in contact, a hard connection is formed by high friction, thereby forming a transmission effect. Alternatively, in order to further increase the transmission effect or prevent relative sliding, teeth can be formed on the friction surface to form mutual engagement through mutual contact;

[0064] For the driving process of the first grinding part 2 or the second grinding part 3, as shown in FIG. Figure 1 as well as Figure 3 As shown, at least one of the support parts 4 is fixedly provided with a pneumatic motor 6, and the second grinding part 3 is fixedly provided on the output end of the pneumatic motor 6. When the pneumatic motor 6 is connected to the airflow from the energy supply part to work, the first grinding part 2 and the second grinding part 3 perform grinding work;

[0065] like Figure 9As shown, the pneumatic motor 6 is connected to the power-assisting element air circuit, so that they can jointly receive the air source from the energy supply part, and the two form a branch matching relationship. Specifically, after the air flow from the energy supply part comes out, it passes through the first solenoid valve 21. The first solenoid valve 21 is a one-inlet and two-outlet control valve. The two outlets are kept open respectively, and the two outlets are respectively connected to the first pipeline 22 and the second pipeline 23. The two pushing parts and the pneumatic motor 6 are connected in series on the first pipeline 22 in sequence, and the power-assisting element is arranged on the second pipeline 23. Through the control of the first solenoid valve 21, the air flow enters the first pipeline 22 or the second pipeline 23 respectively, thereby realizing the grinding process or the movement process of the moving part 1 respectively.

[0066] Furthermore, the combination structure of the rotating nozzle 14 and the contact wheel 102 can be provided in multiple numbers and divided into two groups, such as Figure 17 As shown, the rotation directions of the two groups of rotating nozzles 14 are opposite. When the rotating nozzles 14 in any group work alone, they control the moving part 1 to move in one direction on the steel beam. The two groups of rotating nozzles 14 respectively control the moving part to move in two directions on the steel beam. Therefore, for the structure of the second pipeline 23, the following can also be used. Figure 18 As shown in , specifically, two groups of rotating nozzles 14 (boosting elements) are connected in parallel to the second pipeline 23, and a second solenoid valve 27 is configured on the second pipeline 23 to respectively control the air supply process of the two groups of rotating nozzles 14, thereby respectively realizing the movement process of the moving part 1 in two directions on the steel beam. The structure of the second solenoid valve 27 is consistent with that of the first solenoid valve 21, which is a one-inlet and two-outlet type; the first solenoid valve 21 and the second solenoid valve 27 can be powered by a line, which is connected to the ground through the line and is configured with a handheld power supply device (such as a mobile power supply) for easy operation by the operator;

[0067] like Figure 10As shown in the perspective, the second grinding part 3 on one side of the steel beam in the figure rotates clockwise, thereby driving the first grinding part 2 to rotate clockwise as well. When the second grinding part 3 rotates at high speed, the friction between its circumferential side and the two relatively concave sides of the steel beam is in opposite directions, and the friction between the end face and the inner wall of the steel beam is circumferential. Therefore, during the high-speed rotation of the second grinding part 3, it does not form a tendency to move on the steel beam, while the first grinding part 2 only contacts with the bottom of the steel beam. During the high-speed rotation, the friction force of the circumferential position will form a tendency to move to the left side of the figure, so that it can automatically move on the steel beam during the grinding process, thereby facilitating the grinding of rust that is distributed over a long distance on the steel beam. During the movement of the mobile part 1 on the steel beam, when it encounters a place without rust, the air flow is controlled to enter the second pipeline 23 separately, so that the power-assisting element is activated, thereby keeping the first grinding part 2 and the second grinding part 3 stopped, so that the mobile part 1 can only move. In addition, in order to further enhance the use effect of the present invention, the mobile part 1 can also be equipped with a rust detection element, such as a grating sensor, so as to judge the presence of rust by color detection, and establish a signal linkage relationship with the first solenoid valve 21, so as to correspondingly control the opening of the first pipeline 22 and the second pipeline 23, so as to keep the present invention moving on the steel beam while removing rust, or only moving.

[0068] Reference Figure 3-5 The first grinding part 2 and the second grinding part 3 are both constructed with a communicating storage chamber 7 and an air suction hole 8. A guide chamber 9 is also provided on the base 101. The first grinding part 2 is fixedly connected to an exhaust element located in the guide chamber 9. The exhaust element can be an impeller 24 or a wind wheel. The storage chamber 7 is connected to the guide chamber 9. During the rust removal and grinding process, the high-speed rotation of the first grinding part 2 drives the rotation of the exhaust element, so that an air suction effect is formed in the guide chamber 9. The rust dust ground off the steel beam is sucked into the storage chamber 7 by the air suction hole 8 and finally reaches the guide chamber 9. The guide chamber 9 is provided with a discharge port, which can be connected to a collection pipe leading to the ground, so that the dust is collected and transmitted to the ground. This structure can effectively reduce the falling of dust, thereby reducing the pollution caused during the rust removal process;

[0069] like Figure 10 As shown in the perspective, the spring piece 19 is arc-shaped and deflected to one side, and the air intake hole 8 is located on the inner side of the deflected direction of the spring piece 19. When the second grinding part 3 shown in the figure rotates clockwise, it can just cover the dust from the grinding, thereby facilitating the suction of the air intake hole 8. Alternatively, the spring piece 19 can also be used Figure 16 In the structure shown in FIG, the rotation direction of the second grinding part 3 is still as shown by the arrow in the figure. In this structure, the bending structure at the end of the spring piece 19 can better increase its elastic range of motion, thereby taking into account the contact process with more steel beams of different sizes;

[0070] Further, refer to Figure 4 Regarding the communication method between the storage chamber 7 and the guide chamber 9, specifically, a guide area 10 is constructed in the support portion 4, which is connected to the guide chamber 9. The pneumatic motor 6 is a vane-type pneumatic motor 6, and its output shaft is a hollow structure, with its two ends extending into the storage chamber 7 and the guide area 10 respectively, so that dust can pass through the interior of the inner shaft of the pneumatic motor 6;

[0071] Further, refer to Figure 1 and Figure 2 A delivery tube 11 is connected between the support portion 4 and the base 101. The guide area 10 and the guide cavity 9 are communicated with each other through the delivery tube 11. In addition, the delivery tube 11 is an elastic structure to meet the elastic reset relationship of the support portion 4 on the base 101. For example, the delivery tube 11 can be an elastic tube with a PU structure.

[0072] Example 2

[0073] Reference Figure 14 and Figure 15 , which is the second embodiment of the present invention, and provides a steel structure building paint repair device, which is a further technical upgrade based on the first embodiment. Specifically, as shown in the figure, a steel structure building paint repair device includes the rust removal device in the first embodiment, and also includes a jet component configured to move synchronously with the base 101, and a third pipeline 26. The jet component can be an atomizing jet nozzle 25, which faces the surface of the steel beam and is arranged on the rear side of the moving direction of the moving part 1. In terms of the air path relationship, the air flow flows out of the pneumatic motor 6 and then passes through the jet nozzle 25, and is finally discharged. The third pipeline 26 (oil pipe) is connected to The first pipeline 22 is parallel, and the air nozzle 25 is used to be connected to a paint source (a paint can or paint bucket or other container) on the ground through an oil pipe. The paint source is equipped with a delivery pump for delivering paint into the air nozzle 25. At the same time, the air flow enters the air nozzle 25 and mixes with the paint, so that the paint forms a high-pressure state so that it can be sprayed. In this way, the present invention can automatically touch up the rust-removed steel beam surface in the process of grinding and rust removal while moving, thereby further expanding the actual use effect of the present invention, and further increasing the replacement effect of manual labor in the entire steel beam rust removal and air jetting process, thereby improving the efficiency of the operation.

[0074] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0075] It should be noted that the above embodiments are only used to illustrate the technical solutions 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 preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A paint repair device for steel structure buildings, characterized in that: It comprises a rust removal device, which moves on the steel beam and works with the help of airflow, and also comprises an injection component, through which the airflow passes in sequence, and the injection component is used to connect to a paint source.

2. The steel structure building paint repair device according to claim 1 is characterized in that: The rust removal device comprises: A moving part, wherein the moving part is configured to move along the length direction of the steel beam; A grinding assembly is arranged on the moving part and acts on multiple positions of the steel beam; The energy supply part is relatively independently arranged with the moving part and is used to provide airflow. The grinding assembly and the moving part are both moved by the energy supply part.

3. The paint surface repair device for steel structure buildings according to claim 2 is characterized in that: The grinding assembly includes a first grinding part and a second grinding part, both of which are arranged on the movable part and are configured to act on the bottom and side of the steel beam respectively, and at least the second grinding part and the movable part maintain active cooperation, the first grinding part, the second grinding part and the movable part are all moved by the energy supply part, and the second grinding part moves on the movable part through the energy supply part.

4. The steel structure building paint repair device according to claim 3 is characterized by: It also includes a supporting part and a pushing part that is moved by airflow. The moving part includes a base that is configured to move along the length of the steel beam. The supporting part is movably arranged on the base, and an elastic reset relationship is configured on the base. The pushing part acts on the supporting part.

5. The paint surface repair device for steel structure buildings according to claim 4 is characterized in that: The first grinding part and the second grinding part both work in a rotating state. The first grinding part is rotatably arranged on the base, and the second grinding part is rotatably arranged on the support part. When the support part moves to a fixed position on the base, the first grinding part and the second grinding part cooperate in transmission.

6. The paint surface repair device for steel structure buildings according to claim 5 is characterized in that: It also includes a transmission part, the support part is rotationally matched with the first grinding part, the transmission part is rotationally matched with the support part, and is matched with the pulley between the second grinding part, and forms a contact transmission with the first transmission part.

7. The paint surface repair device for steel structure buildings according to claim 6 is characterized in that: A pneumatic motor is fixedly arranged on at least one of the supporting parts, and the second polishing part is arranged at the output end of the pneumatic motor.

8. The steel structure building paint repair device according to claim 7, characterized in that: It also includes a first pipeline, through which the airflow from the functional part passes, and a plurality of the pushing parts and the pneumatic motors are sequentially connected in series on the first pipeline, and the first pipeline is connected to the jet element.

9. The paint surface repair device for steel structure buildings according to claim 8, characterized in that: It also includes a third pipeline, which is relatively independent from the first pipeline and connected to the jetting component. The end of the third pipeline is used to connect to the paint source.

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