Lifting module, laser and laser equipment

Abstract

The utility model provides a lifting module, laser and laser equipment, the lifting module comprises a driving member, a lifting rod and a lower dustproof sleeve, the lifting rod is in transmission connection with the driving member, at least part of the lifting rod extends downwards from the driving member, and the driving member is used for driving the lifting rod to lift; the lower dustproof sleeve is sleeved on part of the lifting rod below the driving piece, the lower dustproof sleeve is provided with a first end and a second end below the first end, the first end is connected with the driving piece, the second end is connected with the bottom end of the lifting rod, and the lower dustproof sleeve can stretch and retract along with the lifting of the lifting rod. According to the technical scheme, the risk that operation is unstable and unsmooth in the process that the lifting module drives the component to ascend and descend can be reduced.

Description

[0001] Related Applications

[0002] The present application claims priority to Chinese patent applications No. 202410111345.8 and 202410108594.1, filed on January 25, 2024, the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0003] The utility model relates to laser processing technical field, especially a kind of lifting module, laser and laser equipment. BACKGROUND

[0004] In laser engraving machine and laser marking machine and other laser equipment, in order to process the laser position of different height, laser head is usually set up liftable;In the related art, motor screw structure or linear motor lifting module can be used to drive laser head to lift, but a large amount of oil stains and dust are easily generated in the process of laser processing, and the oil stains and dust are easily adhered to the lifting module to affect the normal operation of the lifting module. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a kind of lifting module, laser and laser equipment, to reduce the risk of unstable and not smooth operation of lifting module driving part during lifting.

[0006] To achieve the above-mentioned purpose, the utility model provides a kind of lifting module, comprising:

[0007] Driving member;

[0008] Lifting rod, the lifting rod is drivingly connected with the driving member, and at least part of the lifting rod is arranged downward from the driving member, and the driving member is used to drive the lifting rod to lift;And

[0009] Lower dust cover, the lower dust cover is sleeved on the part of the lifting rod below the driving member, the lower dust cover has first end and second end below the first end, the first end is connected with the driving member, the second end is connected with the bottom end of the lifting rod, and the lower dust cover can stretch and contract with the lifting of the lifting rod.

[0010] In an embodiment of the present application, at least part of the lower dust cover is corrugated.

[0011] In an embodiment of the present application, the lifting module further comprises a fixing seat, the fixing seat is provided with a through hole, the driving member is arranged in the fixing seat, the lifting rod is arranged downward through the through hole and can move up and down relative to the through hole.

[0012] In an embodiment of the present application, the first end is provided with a connecting portion, the lower dust cover is arranged in the through hole, and the connecting portion is arranged between the fixing seat and the driving member.

[0013] In an embodiment of the present application, the lifting module further comprises a protective pad, the protective pad is arranged on a side of the lower dust cover opposite to the driving member, and the protective pad is connected with the lifting rod, and a cross-sectional dimension of the protective pad is not less than a cross-sectional dimension of the lower dust cover.

[0014] In an embodiment of the present application, the driving member is a motor, and the lifting rod is a screw rod, the motor has a mounting hole penetrating along a length direction of the screw rod, the screw rod is arranged in the mounting hole and can extend upwards and downwards through two end openings of the mounting hole.

[0015] In an embodiment of the present application, the lifting module further comprises an upper dust cover, the upper dust cover is arranged on an end opening of the mounting hole away from the lower dust cover, the upper dust cover is internally provided with a movable space with a lower opening, and a part of the screw rod extending above the motor is arranged in the movable space and can move relative to the movable space.

[0016] In an embodiment of the present application, the upper dust cover comprises a dustproof portion and a supporting portion, the supporting portion is arranged on the motor, the dustproof portion is connected to an end of the supporting portion away from the motor and extends along an axial direction of the lifting rod, a radial dimension of the supporting portion is greater than a radial dimension of the dustproof portion, and the movable space is arranged in the dustproof portion.

[0017] The present application further provides a laser device, which comprises the lifting module or the laser as described in any one of the preceding embodiments.

[0018] A housing, an accommodating cavity is formed in the housing, and an opening is arranged at a bottom of the accommodating cavity;

[0019] A laser module, at least part of the laser module is arranged in the accommodating cavity, the laser module can be arranged in a lifting manner relative to the opening, and a light outlet of the laser module faces a lower side of the housing; and

[0020] The lifting module as described in any one of the preceding embodiments is arranged in the accommodating cavity, a driving member of the lifting module is fixed to the housing, a lifting rod of the lifting module is connected with the laser module, so as to drive the laser module to lift relative to the opening.

[0021] The present application further provides a laser device, which comprises the lifting module or the laser as described in any one of the preceding embodiments.

[0022] The utility model discloses a technical scheme, through the telescopic lower dust cover of the lower segment cover of the lifting module, and the lower dust cover is connected with the driving part and the lifting rod of lifting module respectively to form the closed dustproof space, so set, dust or other impurities will not adhere to the lifting rod, also will not from the opening of the driving part lower end for the lifting rod of setting into the driving part, and the lower dust cover can retract and extend with the lifting of the lifting rod, when the length of the lifting rod below the driving part is shortened when the lifting rod rises, the lower dust cover correspondingly shortens to avoid the interference of the lower dust cover to the lifting rod or other structure, when the length of the lifting rod below the driving part is lengthened when the lifting rod drops, the lower dust cover correspondingly expands to ensure that the protruding lifting rod can be covered in the lower dust cover. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structure shown in these drawings without creative labor.

[0024] Figure 1 It is the structure diagram of an embodiment of the laser of the application;

[0025] Figure 2 It is Figure 1 The structure diagram of the laser of the application is removed;

[0026] Figure 3 It is the structure diagram of an embodiment of the lifting module of the application;

[0027] Figure 4 It is Figure 3 The explosion diagram of the lifting module is shown in the figure.

[0028] Explanation of the drawings:

[0029] Reference Name Reference Name 100 Laser 33 Lower dust cover 10 Shell 331 Connection part 11 Accommodating cavity 34 Fixing seat 20 Laser module 341 Through hole 21 Connection block 35 Protective pad 30 Lifting module 36 Upper dust cover 31 Driving piece 361 Dustproof part 311 Mounting hole 362 Supporting part 32 Lifting rod

[0030] The realization of the utility model, functional characteristics and advantages will be further explained by combining with the embodiment and referring to the drawings. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0032] It should be noted that all the directional indications (such as up, down, left, right, front, back, and the like) in the embodiments of the present application are only used to explain the relative positional relationship and movement condition between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0033] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0035] The application provides a lifting module 30.

[0036] Combined with reference Figures 1-4 In an embodiment of the present application, the lifting module 30 comprises a driving member 31, a lifting rod 32 and a lower dust cover 33, the lifting rod 32 is in transmission connection with the driving member 31, and at least part of the lifting rod 32 extends downward from the driving member 31, the driving member 31 is used for driving the lifting rod 32 to lift; the lower dust cover 33 is sleeved on the part of the lifting rod 32 below the driving member 31, the lower dust cover 33 has a first end and a second end below the first end, the first end is connected with the driving member 31, the second end is connected with the bottom end of the lifting rod 32, and the lower dust cover 33 can stretch and contract with the lifting of the lifting rod 32.

[0037] The lifting module 30 provided in the present application can be applied in a laser device or other device having a component lifting requirement. For example, the laser device is provided with a laser 100, the laser 100 includes a shell 10 and a laser module 20 arranged in the shell 10, and the lifting module 30 can be used to drive the whole laser 100 of the laser device to lift or can be used to drive the laser module 20 in the laser 100 to lift. For the convenience of description, the lifting module 30 is used to drive the laser module 20 in the laser 100 to lift in the embodiments of the present application, and the application of the lifting module 30 in other devices or other scenarios can be analogized, which will not be described herein.

[0038] Specifically, the lifting module 30 includes a driving member 31, a lifting rod 32 and a lower dust cover 33. The driving member 31 is in transmission connection with the lifting rod 32. The driving member 31 and the lifting rod 32 can be a pump body and a piston rod in a pneumatic cylinder or a hydraulic cylinder respectively. The driving member 31 and the lifting rod 32 can also form a motor-screw rod assembly or a motor and a rack or a worm, and are in transmission connection through a gear or a worm gear. All of them can form a driving structure in which the driving member 31 drives the lifting rod 32 to lift. When the lifting module 30 is applied in the laser 100, the driving member 31 can be connected with the shell 10 of the laser 100, and the lifting rod 32 can be connected with the laser module 20 of the laser 100, so that the driving member 31 can drive the lifting rod 32 to lift the laser module 20.

[0039] In the lifting module 30, the lower dust cover 33 is arranged outside the part of the lifting rod 32 below the driving member 31. The lower dust cover 33 is arranged in an extendable and retractable manner. For example, the lower dust cover 33 is made of an elastic material or is arranged in a corrugated structure in the following embodiments, so that the lower dust cover 33 can contract and expand with the lifting of the lifting rod 32. When the lifting module 30 is applied in the laser 100, the lower dust cover 33 is arranged on the part of the lifting rod 32 below the driving member 31. For the convenience of description, the two ends of the lower dust cover 33 are a first end and a second end respectively, the first end is above the second end, the first end of the lower dust cover 33 is connected with the driving member 31, the second end is connected with the lifting rod 32, a dustproof space is formed in the lower dust cover 33, and the opening at the lower end of the driving member 31 for penetrating the lifting rod 32 is covered. Dust and oil stains can be prevented from adhering to the lifting rod 32, and impurities such as dust and oil stains can be prevented from entering the driving member 31 from the opening at the lower end of the driving member 31 for penetrating the lifting rod 32. Thus, the impurities such as dust and oil stains can be prevented from blocking between the driving member 31 and the lifting rod 32, so that the driving member 31 can move the lifting rod 32 without being blocked by the impurities, to ensure the smooth and stable operation of the lifting module 30.

[0040] Therefore, it can be understood that the technical scheme of the present application forms a closed dustproof space by sleeving the telescopic lower dustproof sleeve 33 on the lower section of the lifting rod 32 of the lifting module 30, and connecting the lower dustproof sleeve 33 with the driving member 31 and the lifting rod 32 of the lifting module 30 respectively. In this way, dust or other impurities will not adhere to the lifting rod 32, nor will they enter the driving member 31 from the opening at the lower end of the driving member 31 used for passing through the lifting rod 32. Moreover, the lower dustproof sleeve 33 can retract and expand correspondingly with the lifting of the lifting rod 32. When the lifting rod 32 is lifted and the length of the lifting rod 32 below the driving member 31 becomes shorter, the lower dustproof sleeve 33 correspondingly shortens to avoid interference with the lifting rod 32 or other structures. When the lifting rod 32 is lowered and the length of the lifting rod 32 below the driving member 31 becomes longer, the lower dustproof sleeve 33 correspondingly expands to ensure that the extended lifting rod 32 can be covered in the lower dustproof sleeve 33. In this way, dust and other impurities are prevented from adhering to the driving member 31 and the lifting rod 32, ensuring that the driving member 31 will not be blocked by impurities when driving the lifting rod 32 to move, and ensuring smooth and stable operation of the lifting module 30.

[0041] Please refer to Figure 2 and Figure 3 In some embodiments of the present application, at least part of the lower dustproof sleeve 33 is corrugated.

[0042] In this embodiment, at least part of the lower dustproof sleeve 33 is set as a corrugated structure composed of a plurality of corrugated segments connected in sequence. Each corrugated segment can be folded to shorten the length of the lower dustproof sleeve 33, and each corrugated segment of the lower dustproof sleeve 33 can also be expanded to lengthen the length of the lower dustproof sleeve 33. The entire lower dustproof sleeve 33 can be set as a telescopic corrugated structure. In this way, the length of the lower dustproof sleeve 33 can change in the largest range, and the application range is wide. Alternatively, part of the structure of the lower dustproof sleeve 33 can be set as a telescopic corrugated structure. In this way, the shortest retracted length of the lower dustproof sleeve 33 can be set by setting the length of the non-corrugated segment, avoiding the lower dustproof sleeve 33 being pierced by the lifting rod 32 due to excessive contraction, and avoiding affecting the dustproof effect.

[0043] Please refer to Figure 2 and Figure 3 In some embodiments of the present application, the lifting module 30 further comprises a fixing seat 34 provided with a through hole 341. The driving member 31 is arranged in the fixing seat 34, and the lifting rod 32 is arranged to extend downward through the through hole 341 and can move up and down relative to the through hole 341.

[0044] In the embodiment, the lifting module 30 further comprises a fixing seat 34, which is used to fix the lifting module 30 on a position to be installed on the device. For example, when the lifting module 30 is applied to the laser 100, the fixing seat 34 can be fixedly connected with the shell 10 of the laser 100. In the lifting module 30, the driving member 31 is fixed on the fixing seat 34, the lifting rod 32 is arranged through the through hole 341 of the fixing seat 34, and the lower dust cover 33 can be telescoped between the fixing seat 34 and the bottom end of the lifting rod 32. The lower dust cover 33 can be connected with the fixing seat 34, or one end of the lower dust cover 33 can be arranged through the through hole 341 and connected with the driving member 31. The fixing seat 34 can improve the installation stability of the lifting module 30, and facilitate the fixation of the lifting module 30 on the position to be installed, without the need of specially arranging a supporting structure in the device for fixing the lifting module 30.

[0045] In combination with the above Figure 3 and Figure 4 In some embodiments of the present application, the first end is provided with a connecting portion 331, the lower dust cover 33 is arranged through the through hole 341, and the connecting portion 331 is clamped between the fixing seat 34 and the driving member 31.

[0046] In the embodiment, the connecting portion 331 is arranged at the first end of the lower dust cover 33 close to the driving member 31, the lower dust cover 33 is arranged through the through hole 341 of the fixing seat 34, the connecting portion 331 is located between the fixing seat 34 and the driving member 31, and is clamped and fixed by the fixing seat 34 and the driving member 31, so as to improve the connecting strength and position stability of the end of the lower dust cover 33 close to the driving member 31, and avoid the end of the lower dust cover 33 close to the driving member 31 from falling off. The connecting portion 331 can be arranged only at one position in the circumferential direction of the lower dust cover 33, and in some embodiments, the connecting portion 331 can be a sheet-shaped structure arranged in the circumferential direction, or two or more connecting ears distributed in the circumferential direction.

[0047] In combination with the above Figures 1-3 In some embodiments of the present application, the lifting module 30 further comprises a protective pad 35, which is located on the side of the lower dust cover 33 away from the driving member 31 and connected with the lifting rod 32. The cross-sectional size of the protective pad 35 is not less than that of the lower dust cover 33.

[0048] In the embodiment, the lifting module 30 is further provided with a protective pad 35, which can be made of, but is not limited to, vacuum plate, glass wool, expanded perlite, glass fiber mat, polystyrene foam board and other materials, so that the protective pad 35 has at least one of the functions of fireproofing and heat insulation. The protective pad 35 is installed at the bottom end of the lifting rod 32, and the lower dust cover 33 is located above the protective pad 35 between the second end of the lower dust cover 33 and the bottom end of the lifting rod 32. In addition, the cross-sectional size of the protective pad 35 is not less than that of the lower dust cover 33. In this way, when the lifting module 30 is applied to a laser device, the lower dust cover 33 can be isolated from the machining position and the laser by the protective pad 35, so that heat generated during laser processing or other heat is prevented from being transmitted to the lower dust cover 33, thereby avoiding the lower dust cover 33 from catching fire or causing other forms of damage, and improving the safety of use. In addition, the protective pad 35 can also play a certain dustproof role in blocking dust and oil stains to some extent, thereby improving the dustproof performance of the lifting module 30.

[0049] In some embodiments, the position of the lifting rod 32 for sleeving the protective pad 35 can be made into a non-circular cross-sectional profile, and the sleeving hole on the protective pad 35 is shaped to match the cross-sectional shape of the lifting rod 32, so that the protective pad 35 can be prevented from rotating on the lifting rod 32.

[0050] In combination with reference Figure 3 and Figure 4 In some embodiments of the present application, the driving member 31 is a motor, and the lifting rod 32 is a lead screw. The motor has a mounting hole 311 extending along the length direction of the lead screw, and the lead screw is inserted into the mounting hole 311 and can extend upward and downward from the two end openings of the mounting hole 311.

[0051] In the embodiment, the lifting module 30 is a through-type lead screw motor module, in which the lifting rod 32 is a lead screw, the driving member 31 is a motor, and the motor is provided with a mounting hole 311 extending along the length direction of the lead screw. The lead screw is inserted into the mounting hole 311 and can extend above and below the driving member 31 from the two end openings of the mounting hole 311. The rotor in the motor is threadedly connected with the lead screw, so that the lead screw can be driven to move along the length direction of the lead screw when the rotor rotates. By using the through-type lead screw motor module as the lifting module 30, the space occupied by the lifting module 30 is smaller, and the space above and below the motor can be fully utilized for the movement of the lead screw, thereby reducing the volume of devices and equipment using the lifting module 30.

[0052] Please refer to Figures 1-3 In some embodiments of the present application, the lifting module 30 further includes an upper dust cover 36, which is arranged above the end of the mounting hole 311 away from the lower dust cover 33. The upper dust cover 36 is provided with a movable space with a lower opening, and the part of the lead screw extending above the motor is accommodated in the movable space and can move relative to the movable space.

[0053] In the foregoing embodiment, the through-type screw motor module is used as the lifting module 30, and the screw rod can protrude from the upper end of the motor. In this embodiment, the upper dust cover 36 is arranged at the end of the motor away from the lower dust cover 33, and the upper dust cover 36 covers the upper end opening of the mounting hole 311. The upper dust cover 36 forms a movable space in communication with the mounting hole 311. The upper dust cover 36 can shield the screw rod and the mounting hole 311, so as to prevent dust, oil stains and other impurities from adhering to the part of the screw rod protruding from the upper end of the motor, and prevent dust, oil stains and other impurities from entering the motor from the upper end opening of the mounting hole 311. Thus, the dust, oil stains and other impurities can be prevented from blocking between the driving member 31 and the lifting rod 32, so as to ensure that the driving member 31 can drive the lifting rod 32 to move without being blocked by the impurities, and ensure that the lifting module 30 can move smoothly and stably.

[0054] Please refer to Figure 3 In some embodiments of the present application, the upper dust cover 36 includes a dustproof part 361 and a supporting part 362. The supporting part 362 covers the motor, and the dustproof part 361 is connected to the end of the supporting part 362 away from the motor and extends along the axial direction of the lifting rod 32. The radial dimension of the supporting part 362 is greater than the radial dimension of the dustproof part 361, and the dustproof part 361 is provided with a movable space.

[0055] In this embodiment, the upper dust cover 36 includes a dustproof part 361 and a supporting part 362. The supporting part 362 abuts against the motor, and the dustproof part 361 is connected to the end of the supporting part 362 away from the motor and has a substantially cylindrical structure and forms a movable space with a lower opening. The radial dimension of the supporting part 362 is greater than the radial dimension of the dustproof part 361. In this way, the contact area with the motor is increased by the supporting part 362, so as to improve the connection strength between the upper dust cover 36 and the motor.

[0056] Please refer to Figure 1 and Figure 2 In addition, the present application also provides a laser 100, which includes a housing 10, a laser module 20 and a lifting module 30 as in any of the foregoing embodiments. The housing 10 forms a receiving cavity 11 therein, and the bottom of the receiving cavity 11 has an opening. At least part of the laser module 20 is arranged in the receiving cavity 11, and at least part of the laser module 20 can be arranged to be lifted relative to the opening of the receiving cavity 11. The light outlet of the laser module 20 faces downward of the housing 10. The lifting module 30 is arranged in the receiving cavity 11. The driving member 31 of the lifting module 30 is fixed to the housing 10, and the lifting rod 32 of the lifting module 30 is connected to the laser module 20, so as to drive the laser module 30 to be lifted relative to the opening of the receiving cavity 11.

[0057] The laser 100 proposed in the present application can be a laser processing head in a laser engraving machine, a laser cutting machine, a laser marking machine, etc., or can be a laser ranging or positioning structure for emitting laser in a device using laser ranging or positioning, etc. Among them, the laser 100 includes a shell 10 and a laser module 20, and the laser module 20 is a structure for generating and emitting laser in the laser 100, and in some embodiments, a heat dissipation structure, a dust removal air path structure, etc. can also be provided in the laser 100; in the present embodiment, the entire laser module 20 can be lifted relative to the shell 10, or only part of the structure of the laser module 20 can be lifted relative to the shell 10, for example, the laser module 20 includes a laser source and a flight light path structure, the laser source generates laser, and the flight light path structure can guide and emit laser to the desired position, and only the flight light path structure can be lifted. By setting in this way, in the laser device, the shell 10 of the laser 100 is always kept at a fixed height position, so that the connection relationship between the laser 100 and the installation position can be avoided to change due to the overall movement of the laser 100, and the electrical connection and air path connection between the laser 100 and the laser device can be kept stable. And the laser module 20 can be lifted, so that the light outlet of the laser 100 can be adjusted in height according to the processing position, to avoid that the light outlet is too far from the processing position to cause the air flow for dust removal at the light outlet position to not play a good role in dust removal at the processing position.

[0058] In addition, in the laser 100 proposed in the present application, the lifting module 30 in any of the foregoing embodiments is used to drive the laser module 20 to lift. Among them, the driving piece 31 of the lifting module 30 is fixed on the shell 10, which can make the driving piece 31 directly connected with the shell 10, or a fixing seat 34 can be provided in the lifting module 30 to carry the driving piece 31, so that the fixing seat 34 is connected with the shell 10. Optionally, the laser module 20 is provided with a connecting block 21, and the connecting block 21 is connected with the lifting rod 32 of the lifting module 30, so that the connecting block 21 can be sleeved on the bottom end of the lifting rod 32; so that when the driving piece 31 drives the lifting rod 32 to lift, the lifting rod 32 can drive the laser module 20 to lift relative to the shell 10. And by providing the dustproof sleeve 33 in the lifting module 30, a better dustproof effect can be achieved, so that the driving piece 31 and the lifting rod 32 are not affected by dust, oil stains and other impurities, thereby ensuring the smoothness and stability of the lifting process of the laser module 20 driven by the lifting module 30.

[0059] Since the laser device proposed in the present application applies all the technical solutions of the foregoing embodiments, it at least has all the beneficial effects brought by the foregoing technical solutions, which will not be repeated here.

[0060] The application also provides a laser device, which comprises the lifting module 30 or the laser 100 according to any one of the preceding embodiments. The laser device can be a laser engraving machine, a laser cutting machine, a laser marking machine or other devices using laser ranging or positioning. The laser device is provided with the lifting module 30 according to any one of the preceding embodiments, wherein the lifting module 30 can be used to lift the whole laser 100 or only the at least partial structure of the laser module 20 in the laser 100.

[0061] Since the laser device provided by the application applies all the technical solutions of the preceding embodiments, it has all the beneficial effects brought by the preceding technical solutions, which will not be repeated here.

[0062] The preferred embodiments of the application are described above, which do not limit the patent scope of the application. Any equivalent structure transformation made according to the application concept, the content of the specification and the drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the application.

Claims

1. A lifting module, characterized in that, The lifting module comprises: a driving member; a lifting rod in transmission connection with the driving member, and at least partially extending downward from the driving member, the driving member being configured to drive the lifting rod to lift and lower; a lower dust cover sleeved on a portion of the lifting rod below the driving member, the lower dust cover having a first end connected with the driving member and a second end below the first end, the second end of the lower dust cover being connected with a bottom end of the lifting rod, the lower dust cover being capable of extending and retracting with the lifting rod. At least a portion of the lower dust cover is corrugated.

2. The lift module of claim 1, wherein, The lifting module further comprises a fixing seat having a through hole, the driving member is arranged in the fixing seat, and the lifting rod is arranged in the through hole and extends downward and is movable up and down relative to the through hole.

3. The lift module of claim 1, wherein, The first end is provided with a connecting portion, the lower dust cover is arranged in the through hole, and the connecting portion is clamped between the fixing seat and the driving member.

4. The lift module of claim 3, wherein, The lifting module further comprises a protective pad arranged on a side of the lower dust cover opposite to the driving member and connected with the lifting rod, the protective pad having a cross-sectional size not less than that of the lower dust cover.

5. The lift module of claim 1, wherein, The driving member is a motor, and the lifting rod is a lead screw, the motor having a mounting hole penetrating along a length direction of the lead screw, the lead screw being inserted into the mounting hole and being extendable upward and downward relative to two end openings of the mounting hole.

6. The lift module as claimed in any one of claims 1 to 5, characterized in that The lifting module further comprises an upper dust cover arranged at an opening of the mounting hole away from the lower dust cover, the upper dust cover having an active space with a lower opening, and a portion of the lead screw extending above the motor being accommodated in the active space and being movable relative to the active space.

7. The lift module of claim 6, wherein, The upper dust cover comprises a dustproof portion and a supporting portion, the supporting portion being arranged at the motor, the dustproof portion being connected to an end of the supporting portion away from the motor and extending along an axial direction of the lifting rod, a radial dimension of the supporting portion being greater than that of the dustproof portion, and the active space being arranged in the dustproof portion.

8. The lift module of claim 7, wherein, The laser device comprises:

9. A laser characterized by, a housing having a receiving cavity formed therein, the receiving cavity having an opening at a bottom thereof; a laser module at least partially arranged in the receiving cavity and being movable up and down relative to the opening, the laser module having a light outlet directed downward relative to the housing; and the lifting module as claimed in any one of claims 1 to 8, the driving member of the lifting module being fixed to the housing, and the lifting rod of the lifting module being connected with the laser module to drive the laser module to move up and down relative to the opening. The laser device comprises the lifting module as claimed in any one of claims 1 to 8 or the laser as claimed in claim 9.

10. A laser apparatus, characterized by comprising: ​

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