Portable laser cleaning machine

Abstract

The utility model discloses a portable laser cleaning machine, and particularly relates to the technical field of laser cleaning machines, the portable laser cleaning machine comprises a cleaning machine body, the right side of the upper end of the cleaning machine body is fixedly connected with a laser cleaning pipe, the middle part of the front side of the upper end of the cleaning machine body is fixedly connected with a lifting handle, and the front end of the cleaning machine body is fixedly connected with a sponge mat. The left side and the right side of the front end of the sponge mat are symmetrically and fixedly connected with straps, pull rod assemblies are symmetrically arranged in the middle of the rear end of the cleaning machine body in a left-right mode, a fixing assembly is arranged in the middle of the rear end of the cleaning machine body, and a clamping assembly is arranged on the upper portion of the rear end of the cleaning machine body. According to the portable laser cleaning machine, the storage assembly is arranged, when the cleaning hose is not used, the cleaning hose is stored, and the situation that the cleaning hose is exposed in the external environment and is prone to damage is prevented; and the two connecting rod assemblies are arranged, so that a worker does not need to carry the cleaning machine body on the back all the time, and the workload of work is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cleaning machines, in particular to a portable laser cleaning machine. Background Art

[0002] Laser cleaning machine is a device that uses laser technology for cleaning. Its working principle is to evaporate or peel off dirt and impurities from the surface of the object through the high energy and high density of the laser beam, thereby achieving the purpose of cleaning.

[0003] The core components of a laser cleaning machine are a laser generator and an optical system. The laser generator generates a high-energy laser beam, and the optical system focuses the laser beam onto the surface of the object, forming a tiny cleaning spot. When the laser beam hits the surface of the object, dirt and impurities absorb the laser energy, causing thermal expansion and thermal decomposition, which evaporate or peel off. The cleaning spot moves across the surface of the object, continuously removing dirt and impurities until the entire surface of the object is cleaned.

[0004] As an efficient, environmentally friendly and energy-saving cleaning equipment, laser cleaning machine has broad application prospects in multiple industries. With the continuous advancement of technology and the continuous expansion of the market, laser cleaning machine will receive more and more attention and favor from people.

[0005] Chinese patent publication number CN220346740U relates to the technical field of laser cleaning machines and discloses a portable laser cleaning machine, comprising a device body, the device body comprising a laser cleaning body, a carrying assembly mounted on the outside of the laser cleaning body, the carrying assembly comprising a shoulder strap, two shoulder straps being mounted on one side of the laser cleaning body, a mounting base being fixedly mounted on the side of the laser cleaning body away from the shoulder strap, two mounting bases being mounted inside both mounting bases with connecting rods movably mounted via a rotating shaft. The above patent document adopts a design that allows the laser cleaning body to be carried on the shoulder strap by means of a carrying assembly, and then the connecting rod is flipped to a downward vertical position and locked by means of an insertion rod. In the process of carrying the device, most of the gravity is applied to the ground through the rollers, reducing the load intensity on the staff when carrying the device over long distances.

[0006] When the two connecting rods need to be folded up and not in use, the above-mentioned device is provided with a snap-fit ​​frame to store the two connecting rods. However, the snap-fit ​​frame stores the two connecting rods by providing two grooves on the snap-fit ​​frame and respectively inserting the two connecting rods into the two grooves. This storage and fixing method of the two connecting rods is unstable. After the two connecting rods are stored by the snap-fit ​​frame, the above-mentioned device is subjected to bumps, and the two connecting rods can easily come out of the snap-fit ​​frame, thereby causing trouble for the user's specific use. Utility Model Content

[0007] The main purpose of the utility model is to provide a portable laser cleaning machine, which can effectively solve the problem that the storage and fixing method of the two connecting rods is unstable, so that the two connecting rods are easily detached from the fixing device, causing troubles for the user's specific use.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0009] A portable laser cleaning machine includes a cleaning machine body, a laser cleaning tube fixedly connected to the right side of the upper end of the cleaning machine body, a lifting handle fixedly connected to the middle of the front upper end of the cleaning machine body, a sponge pad fixedly connected to the front end of the cleaning machine body, shoulder straps symmetrically fixedly connected to the left and right sides of the front end of the sponge pad, a pull rod assembly symmetrically arranged at the middle of the rear end of the cleaning machine body, a fixing assembly arranged in the middle of the rear end of the cleaning machine body, and a locking assembly arranged at the upper rear end of the cleaning machine body.

[0010] Preferably, the storage assembly includes a storage box, which is fixedly connected to the middle of the right end of the cleaning machine body, and the upper right part of the storage box is rotatably connected to a box cover, and a rectangular groove is opened in the middle of the upper end of the box cover, and a clamping block is fixedly connected to the left side of the lower end of the box cover symmetrically in the front and back, and a circular groove is opened symmetrically in the left side of the upper end of the storage box, and the clamping block and the circular groove on the same side are both clamped.

[0011] Preferably, the pull rod assembly includes two fixed blocks, both of which are fixedly connected to the left side of the middle part of the rear end of the cleaning machine body, and the two fixed blocks are connected to a cylinder at one end for common rotation, and the outer surface of the cylinder is fixedly connected to support column 1, and the inner surface of support column 1 is provided with an adjustment assembly, the inner surface of support column 1 is slidably connected to support column 2, and the lower end of support column 2 is fixedly connected to a wheel.

[0012] Preferably, the adjusting assembly includes a threaded rod 1, which is rotatably connected to the middle part of the upper inner surface of the support column 1, and the support column 2 is threadedly connected to the outer surface of the threaded rod 1. A rubber ring is sleeved on the upper outer surface of the threaded rod 1, and the rubber ring is fixedly connected to the upper inner surface of the support column 1. The upper outer surface of the threaded rod 1 is fixedly connected to a bevel gear 1. The upper left end of the support column 1 penetrates and extends to the support column 1 and is rotatably connected to a round rod. The right side of the outer surface of the round rod is fixedly connected to a bevel gear 2, and the bevel gear 1 is meshed with the bevel gear 2. The left end of the round rod is fixedly connected to a rotating handle 1.

[0013] Preferably, a plurality of rubber blocks are fixedly connected to an outer surface of the rotating handle, and the plurality of rubber blocks are distributed in an arc-shaped array.

[0014] Preferably, the fixing assembly includes a second threaded rod, the outer surface of the second threaded rod is threadedly connected to a connecting rod and a connecting block, the connecting rod is fixedly connected to the right end of the support column, the connecting block is fixedly connected to the middle part of the rear end of the cleaning machine body, and the upper end of the second threaded rod is fixedly connected to a rotating handle.

[0015] Preferably, the locking assembly includes a rectangular rod and a threaded rod three, the rectangular rod is fixedly connected to the upper rear end of the cleaning machine body, the left and right parts of the rear end of the rectangular rod are symmetrically provided with card slots, the right part of the rear end of the rectangular rod is provided with a circular hole one, the left side of the rear end of the rectangular rod is rotatably connected to a rectangular plate, the right side of the rear end of the rectangular plate is provided with a circular hole two, the threaded rod three is threadedly connected to the inner surfaces of the circular hole one and the circular hole two, the rear end of the threaded rod three is fixedly connected to a rotating handle three, the rear end of the rotating handle three is fixedly connected to a rope, and the rope is fixedly connected to the right part of the rear end of the rectangular plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The utility model provides a storage assembly, which can store the cleaning hose when it is not in use, preventing the cleaning hose from being exposed to the external environment and easily damaged; the two connecting rod assemblies are provided, so that when the device is being transported, the staff does not have to carry the cleaning machine body all the time, but can pull the cleaning machine body, thereby reducing the workload. At the same time, the lengths of the two connecting rod assemblies can be changed, so that when the device needs to be pulled instead of carried on the back, it provides convenience for the specific use of staff of different heights.

[0018] 2. The utility model can fix the positions of the two connecting rod assemblies when the two connecting rod assemblies are used to pull the device through the setting of the fixing assembly, so as to prevent the two connecting rod assemblies from rotating when the device is pulled, thereby hindering the process of using the two connecting rod assemblies to pull the device; the setting fixing assembly is fixed with a threaded rod three, and this fixing method is relatively stable, which can prevent the two connecting rod assemblies from coming out of the clamping assembly due to bumps when the two connecting rod assemblies are stored and fixed using the clamping assembly, causing trouble for the staff's laser cleaning work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the storage component structure of the present utility model;

[0021] Figure 3 This is a schematic structural diagram of the pull rod assembly of the present utility model;

[0022] Figure 4 For the utility model Figure 3 Schematic diagram of the structure at A in the middle;

[0023] Figure 5 This is a schematic diagram of the fixing assembly structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the locking assembly of the present invention.

[0025] Figure: 1. Cleaning machine body; 2. Laser cleaning tube; 3. Handle; 4. Shoulder strap; 5. Sponge pad; 6. Storage assembly; 61. Storage box; 62. Box cover; 63. Rectangular slot; 64. Clamping block; 65. Circular slot; 7. Pull rod assembly; 71. Fixing block; 72. Cylinder; 73. Support column 1; 741. Rubber ring; 742. Bevel gear 1; 743. Threaded rod 1; 744. Bevel gear 2. 745. Round rod; 746. Turning handle 1; 747. Rubber block; 75. Support column 2; 76. Wheel; 8. Fixing assembly; 81. Connecting rod; 82. Connecting block; 83. Threaded rod 2; 84. Turning handle 2; 9. Engaging assembly; 91. Rectangular rod; 92. Slot; 93. Round hole 1; 94. Round hole 2; 95. Rectangular plate; 96. Threaded rod 3; 97. Turning handle 3; 98. Rope. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figure 1 As shown, a portable laser cleaning machine includes a cleaning machine body 1, a laser cleaning tube 2 is fixedly connected to the right side of the upper end of the cleaning machine body 1, a lifting handle 3 is fixedly connected to the middle of the front upper end of the cleaning machine body 1, a sponge pad 5 is fixedly connected to the front end of the cleaning machine body 1, and shoulder straps 4 are symmetrically fixedly connected to the left and right sides of the front end of the sponge pad 5, a pull rod assembly 7 is symmetrically arranged on the left and right sides in the middle of the rear end of the cleaning machine body 1, a fixing assembly 8 is arranged in the middle of the rear end of the cleaning machine body 1, and a locking assembly 9 is arranged on the upper rear end of the cleaning machine body 1.

[0028] The cleaning machine body 1 and the laser cleaning tube 2 mentioned above are both mature technical means in the prior art. This solution only demonstrates their coordination with other structures, and their structure and working principle will not be elaborated here.

[0029] In a specific implementation, when the cleaning machine body 1 is being transported, the staff does not need to carry the cleaning machine body 1 on their backs. Instead, they can remove the two pull rod assemblies 7 from the clamping assembly 9 and then adjust the two pull rod assemblies 7 to a length that is convenient for the staff to pull the cleaning machine body 1 according to their height and hand length.

[0030] Then, the fixing assembly 8 is used to fix the positions of the two pull rod assemblies 7 to prevent the two pull rod assemblies 7 from rotating when the staff pulls the cleaning machine body 1, so that the staff cannot pull the cleaning machine body 1 through the two pull rod assemblies 7;

[0031] During transportation, the laser cleaning tube 2 is stored in the storage assembly 6 to prevent the laser cleaning tube 2 from being exposed to the external environment during transportation, which may cause damage.

[0032] After the staff carries the device to the location where laser cleaning is required, the two pull rod assemblies 7 are stored and fixed through the snap assembly 9 to prevent the two pull rod assemblies 7 from obstructing the cleaning process when the staff starts laser cleaning with the cleaning machine body 1 on their back. Then the staff carries the cleaning machine body 1 on their back through the two straps 4 to start laser cleaning. The sponge pad 5 can increase the comfort of the staff when carrying the cleaning machine body 1.

[0033] Specifically, in order to prevent the laser cleaning tube 2 from being exposed to the external environment when not in use, thereby avoiding damage, refer to Figure 2 The storage assembly 6 includes a storage box 61, which is fixedly connected to the middle of the right end of the cleaning machine body 1. The upper right part of the storage box 61 is rotatably connected to a box cover 62. A rectangular groove 63 is provided in the middle of the upper end of the box cover 62. A clamping block 64 is fixedly connected to the left side of the lower end of the box cover 62 symmetrically front and back. A circular groove 65 is provided symmetrically front and back on the left side of the upper end of the storage box 61. The clamping block 64 and the circular groove 65 on the same side are both clamped.

[0034] In a specific implementation, when the device is not needed for laser cleaning, the box cover 62 is opened, the laser cleaning tube 2 is placed in the storage box 61, and then the box cover 62 is closed, and the two clamping blocks 64 are correspondingly inserted into the two circular grooves 65, so that when the box cover 62 is closed, it will not open easily. After the laser cleaning tube 2 is placed in the storage box 61, the rectangular groove 63 can clamp the cleaning head of the laser cleaning tube 2 to prevent the laser cleaning tube 2 from coming out of the storage box 61;

[0035] In this way, when the laser cleaning tube 2 is not in use, it can be stored in the storage box 61 and does not need to be exposed to the external environment all the time, which prevents the laser cleaning tube 2 from being damaged and affecting the service life of the laser cleaning tube 2.

[0036] Specifically, in order to reduce the burden of laser cleaning work for the staff, the staff does not have to carry the cleaning machine body 1 all the time when the laser cleaning work is not required. Figure 3 The pull rod assembly 7 includes two fixed blocks 71, both of which are fixedly connected to the left side of the middle part of the rear end of the cleaning machine body 1. The two fixed blocks 71 are connected to a cylinder 72 at one end thereof for common rotation. The outer surface of the cylinder 72 is fixedly connected to a support column 1 73. The inner surface of the support column 1 73 is provided with an adjustment assembly. The inner surface of the support column 1 73 is slidably connected to the support column 2 75. The lower end of the support column 2 75 is fixedly connected to a wheel 76.

[0037] Further reading Figure 4 , the adjustment assembly includes a threaded rod 743, the threaded rod 743 is rotatably connected to the middle part of the upper inner surface of the support column 73, the support column 75 is threadedly connected to the outer surface of the threaded rod 743, the outer surface of the threaded rod 743 is sleeved with a rubber ring 741, the rubber ring 741 is fixedly connected to the upper inner surface of the support column 73, the outer surface of the threaded rod 743 is fixedly connected to a bevel gear 742, the upper left end of the support column 73 passes through and extends into the support column 73 and is rotatably connected to a round rod 745, the right side of the outer surface of the round rod 745 is fixedly connected to a bevel gear 2 744, the bevel gear 1 742 is meshed with the bevel gear 2 744, and the left end of the round rod 745 is fixedly connected to a rotating handle 1 746;

[0038] A plurality of rubber blocks 747 are fixedly connected to the outer surface of the rotating handle 1 746 , and the plurality of rubber blocks 747 are distributed in an arc-shaped array;

[0039] Further reading Figure 5 The fixing assembly 8 includes a second threaded rod 83, the outer surface of the second threaded rod 83 is threadedly connected to a connecting rod 81 and a connecting block 82, the connecting rod 81 is fixedly connected to the right end of the support column 73, the connecting block 82 is fixedly connected to the middle of the rear end of the cleaning machine body 1, and the upper end of the second threaded rod 83 is fixedly connected to a second rotating handle 84;

[0040] Further reading Figure 6The locking assembly 9 includes a rectangular rod 91 and a threaded rod three 96. The rectangular rod 91 is fixedly connected to the upper rear end of the cleaning machine body 1. The left and right parts of the rear end of the rectangular rod 91 are symmetrically provided with card slots 92. The right part of the rear end of the rectangular rod 91 is provided with a circular hole 1 93. The left side of the rear end of the rectangular rod 91 is rotatably connected to a rectangular plate 95. The right side of the rear end of the rectangular plate 95 is provided with a circular hole 2 94. The threaded rod three 96 is threadedly connected to the inner surfaces of the circular hole 1 93 and the circular hole 2 94. The rear end of the threaded rod three 96 is fixedly connected to a rotating handle three 97. The rear end of the rotating handle three 97 is fixedly connected to a rope 98. The rope 98 is fixedly connected to the right part of the rear end of the rectangular plate 95.

[0041] The two rubber rings 741 can exert friction on the two threaded rods 1 743 without affecting the rotation of the two threaded rods 1 743, so that the two threaded rods 1 743 will not rotate easily due to external forces;

[0042] The two threaded rods 1 743 can lock the two support columns 2 75 when the two rotating handles 1 746 are not rotated, thereby preventing the two support columns 1 73 from sliding due to external forces.

[0043] In a specific implementation, when the device does not need to perform laser cleaning and the worker carries the cleaning machine body 1 to perform cleaning, the two pull rod assemblies 7 are fixed by the snap assembly 9. At this time, the two support columns 75 are respectively retracted into the two support columns 1 73, and the two pull rod assemblies 7 are in the shortest state. If the two support columns 75 are not retracted into the two support columns 1 73, the length of the two pull rod assemblies 7 is too long, and when they are retracted by the snap assembly 9, it is easy to cause obstruction to the laser cleaning process.

[0044] Turn the rotating handle 1 746 counterclockwise, and the rubber blocks 747 can increase the friction force, making the process of turning the rotating handle 1 746 more stable and comfortable. The rotating handle 1 746 rotates to drive the round rod 745 to rotate, thereby driving the bevel gear 2 744 to rotate. Since the bevel gear 1 742 and the bevel gear 2 744 are engaged, the rotation of the bevel gear 2 744 drives the bevel gear 1 742 to rotate, thereby driving the threaded rod 1 743 to rotate, thereby driving the support column 2 75 to slide into the inside of the support column 1 73. The support column 2 75 and the support column 1 73 are slidably connected, which can limit the support column 2 75. In this way, the two support columns 2 75 are respectively received in the two support columns 1 73;

[0045] Then, the second rotating handle 84 is rotated counterclockwise to make the second threaded rod 83 come out of the connecting rod 81 and no longer fix the connecting rod 81. The third rotating handle 97 is rotated counterclockwise to make the third threaded rod 96 disengage from the circular hole 1 93. Then, the rectangular plate 95 is rotated to rotate the two pull rod assemblies 7 to respectively insert the two support columns 1 73 into the two slots 92. The rectangular plate 95 is rotated to cover the rectangular rod 91. The third rotating handle 97 is rotated clockwise to drive the third threaded rod 96 to rotate so that the third threaded rod 96 is inserted into the circular hole 1 93, thereby fixing the two support columns 1 73 through the rectangular plate 95. This fixing method is relatively stable, so that after the two pull rod assemblies 7 are stored by the clamping assembly 9, they are not easily affected by bumps and can easily come out of the clamping assembly 9, which would affect the laser cleaning process of the staff.

[0046] During transportation, the staff does not need to carry the cleaning machine body 1 on their backs. They only need to rotate the rotating handle 3 97 counterclockwise to drive the threaded rod 3 96 to rotate, so that the threaded rod 3 96 is disengaged from the circular hole 1 93, and then take the two pull rod assemblies 7 out of the engaging assembly 9. According to the height and hand length of the staff, the rotating handle 1 746 is rotated clockwise. Under the meshing action of the bevel gear 1 742 and the bevel gear 2 744, the threaded rod 1 743 is rotated, so that the support column 2 75 slides out from the support column 1 73, and the two pull rod assemblies 7 are adjusted to the required length.

[0047] Then, turn the second handle 84 clockwise to move the second threaded rod 83 downward to fix the connecting rod 81, thereby connecting the two pull rod assemblies 7 to the cleaning machine body 1, so that the two pull rod assemblies 7 will not rotate easily, thereby preventing the staff from pulling the cleaning machine body 1.

[0048] In this way, the staff can use the two pull rod assemblies 7 to pull the cleaning machine body 1 during transportation, instead of having to carry the cleaning machine body 1 all the time, thereby reducing the workload of the staff.

[0049] The working principle of this utility model is:

[0050] When transporting the cleaning machine body 1, the worker stores the laser cleaning tube 2 through the storage assembly 6, takes out the two pull rod assemblies 7 from the clamping assembly 9, and then adjusts the two pull rod assemblies 7 to a suitable length according to the height and arm length of the worker. The two pull rod assemblies 7 are connected to the cleaning machine body 1 through the fixing assembly 8. The worker then pulls the cleaning machine body 1 and carries it to the location where laser cleaning is required.

[0051] The two pull rod assemblies 7 are stored through the clamping assembly 9, and the laser cleaning tube 2 is taken out from the storage assembly 6. The staff carries the cleaning machine body 1 on their back and starts the laser cleaning work.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A portable laser cleaning machine, comprising a cleaning machine body (1), characterized in that: The right side of the upper end of the cleaning machine body (1) is fixedly connected to a laser cleaning tube (2), the middle part of the front side of the upper end of the cleaning machine body (1) is fixedly connected to a lifting handle (3), the front end of the cleaning machine body (1) is fixedly connected to a sponge pad (5), the left and right sides of the front end of the sponge pad (5) are symmetrically fixedly connected to a shoulder strap (4), the middle part of the rear end of the cleaning machine body (1) is symmetrically provided with a pull rod assembly (7), the middle part of the rear end of the cleaning machine body (1) is provided with a fixing assembly (8), and the upper part of the rear end of the cleaning machine body (1) is provided with a locking assembly (9).

2. The portable laser cleaning machine according to claim 1, characterized in that: The storage assembly (6) includes a storage box (61), the storage box (61) is fixedly connected to the middle of the right end of the cleaning machine body (1), the upper right part of the storage box (61) is rotatably connected to a box cover (62), the upper middle part of the box cover (62) is provided with a rectangular groove (63), the left side of the lower end of the box cover (62) is symmetrically fixed with a clamping block (64), the left side of the upper end of the storage box (61) is symmetrically provided with a circular groove (65), and the clamping block (64) and the circular groove (65) on the same side are both clamped.

3. The portable laser cleaning machine according to claim 1, characterized in that: The pull rod assembly (7) includes two fixed blocks (71), and the two fixed blocks (71) are fixedly connected to the left side of the middle part of the rear end of the cleaning machine body (1). The two fixed blocks (71) are connected to a cylinder (72) at one end thereof for common rotation. The outer surface of the cylinder (72) is fixedly connected to a support column 1 (73). The inner surface of the support column 1 (73) is provided with an adjustment assembly. The inner surface of the support column 1 (73) is slidably connected to the support column 2 (75). The lower end of the support column 2 (75) is fixedly connected to a wheel (76).

4. The portable laser cleaning machine according to claim 3, characterized in that: The adjustment assembly includes a threaded rod (743), the threaded rod (743) is rotatably connected to the middle part of the upper inner surface of the support column (73), the support column (75) is threadedly connected to the outer surface of the threaded rod (743), a rubber ring (741) is sleeved on the upper outer surface of the threaded rod (743), the rubber ring (741) is fixedly connected to the upper inner surface of the support column (73), the outer surface of the threaded rod (743) is fixedly connected to a bevel gear (742), the upper left end of the support column (73) passes through and extends into the support column (73) and is rotatably connected to a round rod (745), the outer surface of the round rod (745) is fixedly connected to a bevel gear (744) on the right side, the bevel gear (742) is meshed with the bevel gear (744), and the left end of the round rod (745) is fixedly connected to a rotating handle (746).

5. The portable laser cleaning machine according to claim 4, characterized in that: A plurality of rubber blocks (747) are fixedly connected to the outer surface of the rotating handle (746), and the plurality of rubber blocks (747) are distributed in an arc-shaped array.

6. The portable laser cleaning machine according to claim 5, characterized in that: The fixing assembly (8) comprises a second threaded rod (83), the outer surface of the second threaded rod (83) being threadedly connected to a connecting rod (81) and a connecting block (82), the connecting rod (81) being fixedly connected to the right end of the first support column (73), the connecting block (82) being fixedly connected to the middle portion of the rear end of the cleaning machine body (1), and the upper end of the second threaded rod (83) being fixedly connected to a second rotating handle (84).

7. The portable laser cleaning machine according to claim 1, characterized in that: The engaging assembly (9) comprises a rectangular rod (91) and a threaded rod (96), wherein the rectangular rod (91) is fixedly connected to the upper rear end of the cleaning machine body (1), and the left and right rear ends of the rectangular rod (91) are symmetrically provided with a card slot (92), and the right rear end of the rectangular rod (91) is provided with a circular hole (93), and the left rear end of the rectangular rod (91) is rotatably connected to a rectangular plate (95), and the right rear end of the rectangular plate (95) is provided with a circular hole (94), and the threaded rod (96) is threadedly connected to the inner surfaces of the circular hole (93) and the circular hole (94), and the rear end of the threaded rod (96) is fixedly connected to a rotating handle (97), and the rear end of the rotating handle (97) is fixedly connected to a string (98), and the string (98) is fixedly connected to the right rear end of the rectangular plate (95).

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