Handheld dust-free sand blasting gun for steel structure rust removal
By setting up sandblasting and suction channels inside the sandblasting gun, and combining positive pressure sandblasting pipes and negative pressure suction pipes, the dust pollution problem during sandblasting rust removal is solved, achieving efficient and environmentally friendly rust removal.
Patent Information
- Application Number
- CN202520189202.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-02-07
AI Technical Summary
Existing sandblasting and rust removal equipment generates a large amount of dust during use, polluting the environment and affecting the health of workers. At the same time, rust removal of steel structures is not flexible enough, and equipment recycling is difficult.
A handheld dust-free sandblasting gun was designed, which has a sandblasting channel and a sand suction channel, and is equipped with a positive pressure sandblasting pipe and a negative pressure sand suction pipe. Combined with an annular sand-blocking component and an electromagnet, it can effectively adsorb and recover sand particles and reduce dust pollution.
It effectively adsorbs and recovers sand particles, reduces dust pollution, improves rust removal efficiency and flexibility, and reduces the possibility of sand particles flying out when the equipment is moved.
Smart Images
Figure CN223749411U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to steel structure rust removal technical field, concretely relates to a handheld dustless sand blasting gun for steel structure rust removal. BACKGROUND
[0002] After the steel structure is welded, it needs to be painted to prolong the service life of the steel structure. But before the painting process of the steel structure, the steel structure generally needs to be rusted to prevent the steel structure from being damaged from the inside of the primer after painting.
[0003] Currently, the steel structure is generally rusted by sand blasting or shot blasting, and the principle is to use foreign matter to impact the surface of the steel structure at high speed, so that the rust, impurities and the like on the surface of the steel structure are removed. The difference is that the shot blasting is generally a heavy equipment, which consumes a lot of energy and is not flexible to use, and is mainly applied to large-volume and simple-structure steel structures. For the treatment of slightly complex steel structures, it is not enough. The use scene and object of the sand blasting are more flexible, but the existing sand blasting equipment generates a large amount of dust during use, which affects the environment and the health of the workers. The workers must wear a complete set of protective equipment when sand blasting, and at the same time, the steel sand sprayed by the existing sand blasting equipment is also difficult to recover.
[0004] Based on this, the inventor designs a handheld dustless sand blasting gun for steel structure rust removal, which can solve the problem of a large amount of dust generated during sand blasting, and thus the present application is proposed. SUMMARY
[0005] The purpose of the present application is to provide a handheld dustless sand blasting gun for steel structure rust removal, which solves the problem of dust pollution and environmental and health problems caused by sand blasting rust removal of steel structure in the prior art.
[0006] To solve the above technical problems, the utility model adopts the following scheme:
[0007] On the one hand, the present application provides a handheld dustless sand blasting gun for steel structure rust removal, which comprises a sand blasting gun body, a separation pipe is arranged in the sand blasting gun body to separate it into a sand blasting channel and a sand suction channel, the side of the sand suction channel close to the head end of the sand blasting gun body is annular, and the sand blasting channel is located inside the annular sand suction channel.
[0008] It also includes a positive pressure sand blasting pipe and a negative pressure sand suction pipe connected to the tail end of the sand blasting gun and communicating with the sand blasting channel and the sand suction channel respectively, and an annular sand blocking assembly for preventing sand particles from flying out, which is arranged at the head end of the sand blasting gun and extends outward.
[0009] Optionally, the head end of the sand blasting gun body is also provided with an electromagnet mounting cabin, and an annular mounting groove is arranged in the electromagnet mounting groove.
[0010] The electromagnet body is arranged in the annular mounting groove;
[0011] The handle is fixed to the sand blasting gun body, and the switch button is arranged on the handle.
[0012] The annular sand blocking assembly is arranged on the side of the electromagnet mounting cabin towards the head end.
[0013] Optionally, the annular wire routing cavity is arranged in the electromagnet mounting cabin.
[0014] The sand blasting gun body is further provided with a wire routing structure, and the wiring terminal of the electromagnet body is electrically connected with the switch button through the annular wire routing cavity and the wire routing structure.
[0015] Optionally, the electromagnet body is a ring-shaped direct current electromagnet.
[0016] Optionally, the annular sand blocking assembly comprises an inner ring elastic sand blocking ring and an outer ring elastic sand blocking ring, both of which are made of silica gel or rubber, and the inner ring elastic sand blocking ring and the outer ring elastic sand blocking ring have an annular cavity opposite to the electromagnet body.
[0017] Optionally, the cross section of the sand blasting channel is circular, and the cross section of the sand suction channel is annular.
[0018] Optionally, the ratio of the cross section area of the sand blasting channel to the cross section area of the sand suction channel ranges from 0.5 to 1.
[0019] Optionally, the sand blasting channel is provided with a turning structure for turning the straight blasting direction of the sand blasting into an oblique blasting direction.
[0020] Optionally, the turning structure comprises a connecting rod and a turning conical block fixed to the connecting rod, the turning conical block gradually increases in cross section area along the sand blasting direction, and the peripheral side surface of the turning conical block is a concave curved surface.
[0021] The present application has the following beneficial effects:
[0022] The technical problem solved by the present application is that the sand blasting channel and the sand suction channel are arranged in the sand blasting gun body, and the positive pressure sand blasting pipe and the negative pressure sand suction pipe are arranged in communication with the sand blasting channel and the sand suction channel respectively, so that the sand particles in the positive pressure sand blasting pipe are blasted to the surface of the steel structure through the sand blasting channel for rust removal, and then quickly enter the negative pressure sand suction pipe through the sand suction channel, thereby avoiding the pollution of the working environment caused by the sand particles entering the environment.
[0023] The elastic annular sand blocking assembly and the electromagnet body are arranged, so that the magnetic force generated by the electromagnet body can attract the sand blasting gun body to the surface of the steel structure when the sand blasting gun body is in a working state, and the flying of the sand particles during the movement of the sand blasting gun body can be further reduced.
[0024] In addition, the turning structure is arranged in the sand blasting channel, so that the sand particles are sprayed to the steel structure surface in an inclined manner instead of vertically, and the rust removal efficiency and effect can be improved. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 It is a structural schematic view of the embodiment 1 of the present application.
[0026] Figure 2 It is a structural schematic view of the embodiment 2 of the present application. Figure 1
[0027] Figure 3 It is a structural schematic view of the embodiment 2 of the present application.
[0028] Figure 4 It is a structural schematic view of the embodiment 2 of the present application. Figure 3
[0029] BRIEF DESCRIPTION OF DRAWINGS
[0030] 1-sand blasting gun body, 11-separation pipe, 12-sand blasting channel, 13-sand suction channel, 14-electromagnet installation cabin, 141-annular installation groove, 142-annular wiring cavity, 15-wiring structure, 2-grip, 21-switch button, 3-annular sand blocking assembly, 31-inner ring elastic sand blocking ring, 32-outer ring elastic sand blocking ring, 4-electromagnet body, 51-connection rod, 52-turning conical block, 521-concave curved surface, 6-steel structure body, 7-positive pressure sand blasting pipe, 8-negative pressure sand suction pipe. DETAILED DESCRIPTION
[0031] The present application will be further described in detail below in combination with the embodiments and the drawings, but the implementation mode of the present application is not limited thereto.
[0032] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0033] In the description of the utility model, still need to explain, unless another explicit provision and limitation, term " set ", " open ", " install ", " connect ", " connection " should do broad sense, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication. For ordinary skilled in the art, the above-mentioned terms can be understood in the utility model with the concrete meaning of the specific situation.
[0034] The utility model will be described in detail below by referring to the drawings and combining with the embodiments.
[0035] Embodiment 1:
[0036] As Figure 1 And Figure 2 The embodiment provides a handheld dustless sand blasting gun for rust removal of steel structure, including sand blasting gun main body 1, sand blasting gun main body 1 is equipped with the separation pipe 11 that separates its inside into sand blasting channel 12 and sand suction channel 13, and the side of sand suction channel 13 close to the head end of sand blasting gun main body 1 is annular, and sand blasting channel 12 is located inside annular sand suction channel 13.
[0037] Still include the positive pressure sand blasting pipe 7 and negative pressure sand suction pipe 8 that are connected at the tail end of sand blasting gun and are communicated with sand blasting channel 12 and sand suction channel 13 respectively, and the annular sand blocking assembly 3 for preventing sand particles from flying out, the annular sand blocking assembly 3 is set at the head end of sand blasting gun and extends outward.
[0038] The embodiment is by setting sand blasting channel 12 and sand suction channel 13 in sand blasting gun main body 1, and setting the positive pressure sand blasting pipe 7 and negative pressure sand suction pipe 8 that are communicated with sand blasting channel 12 and sand suction channel 13 respectively, so that the sand particles in positive pressure sand blasting pipe 7 are sprayed to the surface of steel structure through sand blasting channel 12 for rust removal, and can quickly enter negative pressure sand suction pipe 8 through sand suction channel 13, avoid sand particles from entering the environment and polluting the working environment.
[0039] Specifically, in the embodiment, as Figure 1 And Figure 2 The head end of sand blasting gun main body 1 is also provided with an electromagnet mounting cabin 14, and an annular mounting groove 141 is arranged in the electromagnet mounting groove.
[0040] Still include the electromagnet main body 4 that is arranged in annular mounting groove 141.
[0041] Still include the handle 2 fixed on sand blasting gun main body 1 and the switch button 21 arranged on handle 2, and the switch electromagnet is electrically connected with switch button 21.
[0042] The annular sand blocking assembly 3 is installed on the side of the electromagnet installation cabin 14 facing the head end. The annular sand blocking assembly 3 in the embodiment has elasticity, and by arranging the elastic annular sand blocking assembly 3 and the electromagnet body 4, the magnetic force generated by the electromagnet body 4 can attract the sandblasting gun body 1 to the surface of the steel structure when the sandblasting gun body 1 is in the working state, which can further reduce the possibility of sand particles flying out during the movement of the sandblasting gun body 1.
[0043] Specifically, in the embodiment, the annular wire routing cavity 142 is further arranged in the electromagnet installation cabin 14.
[0044] The sandblasting gun body 1 is further provided with a wire routing structure 15, and the wire terminal of the electromagnet body 4 is electrically connected with the switch button 21 through the annular wire routing cavity 142 and the wire routing structure 15. By arranging the annular wire routing cavity 142 and the wire routing structure 15, the problem of messy wiring can be avoided, and maintenance is also facilitated.
[0045] Specifically, in the embodiment, the electromagnet body 4 is a ring-shaped direct-current electromagnet.
[0046] Specifically, in the embodiment, the annular sand blocking assembly 3 includes an inner ring elastic sand blocking ring 31 and an outer ring elastic sand blocking ring 32, both of which are made of silica gel or rubber, and the inner ring elastic sand blocking ring 31 and the outer ring elastic sand blocking ring 32 have an annular cavity opposite to the electromagnet body 4.
[0047] Specifically, in the embodiment, the cross section of the sandblasting channel 12 is circular, and the cross section of the sand suction channel 13 is circular ring-shaped.
[0048] Specifically, in the embodiment, the area ratio of the cross-sectional area of the sandblasting channel 12 to the cross-sectional area of the sand suction channel 13 ranges from 0.5 to 1. The cross-sectional area of the sandblasting channel 12 is smaller than the cross-sectional area of the sand suction channel 13, which can minimize the environmental pollution caused by flying sand particles.
[0049] Embodiment 2:
[0050] Based on the above-mentioned embodiment 1, in the embodiment, as shown in Figure 3 and Figure 4 The sandblasting channel 12 is provided with a turning structure for turning the straight blowing direction of sandblasting into an inclined blowing direction.
[0051] The turning structure arranged in the sandblasting channel 12 in the embodiment changes the blowing direction of the sand particles from perpendicular to the surface of the steel structure to an inclined direction towards the surface of the steel structure, which can improve the rust removal efficiency and effect.
[0052] Specifically, in the embodiment, the turning structure comprises a connecting rod 51 and a turning conical block 52 fixed on the connecting rod 51, the cross-sectional area of the turning conical block 52 gradually increases along the sandblasting direction, and the peripheral side surface of the turning conical block 52 is a concave curved surface 521. In the embodiment, the cross section of the turning conical block 52 is circular, and in some embodiments, it can also be square.
[0053] The remaining structures in the embodiment are the same as those in the above-described embodiment 1, and will not be described herein.
[0054] It can be understood that the above embodiments are only exemplary embodiments adopted for illustrating the principles of the present application, and the present application is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present application, and these modifications and improvements are also considered as the protection scope of the present application.
Claims
1. A hand-held dustless sandblaster for rust removal of steel structures comprising a sandblaster body (1), characterized in that, The sand blasting gun body (1) is internally provided with a partition pipe (11) separating the inside thereof into a sand blasting channel (12) and a sand suction channel (13), the sand suction channel (13) is annular at the side close to the head end of the sand blasting gun body (1), and the sand blasting channel (12) is located inside the annular sand suction channel (13); Further comprising a positive pressure sand blasting pipe (7) and a negative pressure sand suction pipe (8) connected at the tail end of the sand blasting gun and respectively communicated with the sand blasting channel (12) and the sand suction channel (13), and an annular sand blocking assembly (3) for preventing sand particles from flying out, the annular sand blocking assembly (3) is arranged at the head end of the sand blasting gun and extends outward.
2. A hand-held dustless sandblaster for rust removal of steel structures according to claim 1, characterized in that, The head end of the sand blasting gun body (1) is further provided with an electromagnet mounting cabin (14), and the electromagnet mounting groove is provided with an annular mounting groove (141); Further comprising an electromagnet body (4) arranged in the annular mounting groove (141); Further comprising a handle (2) fixed to the sand blasting gun body (1) and a switch button (21) arranged on the handle (2), the switch electromagnet is electrically connected with the switch button (21); The annular sand blocking assembly (3) is arranged at the side of the electromagnet mounting cabin (14) facing the head end.
3. The handheld dustless sandblaster for rust removal of steel structure according to claim 2, characterized in that, The electromagnet mounting cabin (14) is further provided with an annular wire routing cavity (142); The sand blasting gun body (1) is further provided with a wire routing structure (15), and the wire terminal of the electromagnet body (4) is electrically connected with the switch button (21) through the annular wire routing cavity (142) and the wire routing structure (15).
4. The handheld dustless sandblaster for rust removal of steel structure according to claim 2, characterized in that, The electromagnet body (4) is a ring-shaped direct current electromagnet.
5. The handheld dustless sandblaster for rust removal of steel structure according to claim 2, characterized in that, The annular sand blocking assembly (3) comprises an inner ring elastic sand blocking ring (31) and an outer ring elastic sand blocking ring (32) both made of silica gel or rubber, and has an annular cavity opposite to the electromagnet body (4) between the inner ring elastic sand blocking ring (31) and the outer ring elastic sand blocking ring (32).
6. The handheld dustless sandblaster for rust removal of steel structure according to claim 1, characterized in that, The cross section of the sand blasting channel (12) is circular, and the cross section of the sand suction channel (13) is annular.
7. The handheld dustless sandblaster for rust removal of steel structures according to claim 1, characterized in that, The ratio of the cross-sectional area of the sand blasting channel (12) to the cross-sectional area of the sand suction channel (13) ranges from 0.5 to 1.
8. The handheld dustless sandblaster for rust removal of steel structure according to claim 1, characterized in that, The sand blasting channel (12) is provided with a turning structure for turning the straight blasting direction of the sand blasting into an oblique blasting direction.
9. The handheld dustless sandblaster for rust removal of steel structures according to claim 8, characterized in that, The turning structure comprises a connecting rod (51) and a turning conical block (52) fixed to the connecting rod (51), the cross-sectional area of the turning conical block (52) gradually increases along the sand blasting direction, and the peripheral side surface of the turning conical block (52) is a concave curved surface (521).