A carpet laying and levelling device
By designing a carpet laying and leveling device, and utilizing components such as worm gear mechanisms and intermittent gears, the problem of insufficient carpet laying flatness is solved, achieving efficient and precise laying results, and adapting to various carpet materials and thicknesses.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG IND POLYTECHNIC COLLEGE
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-26
AI Technical Summary
In the existing technology, it is difficult to ensure the flatness of carpet laying, especially roll carpet, resulting in low laying efficiency and poor quality.
A carpet laying and leveling device was designed, comprising a frame, a leveling mechanism, a width adjustment component, a leveling component, and a leveling head component. It utilizes components such as a worm gear mechanism, intermittent gears, and rectangular springs to achieve efficient carpet leveling and flatness control.
It improves the flatness and precision of carpet laying, frees up manpower, increases laying efficiency, and adapts to carpets of different materials and thicknesses, enhancing the applicability and practicality of the equipment.
Smart Images
Figure CN224403357U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carpet laying equipment, and in particular to a carpet laying and smoothing device. Background Technology
[0002] Currently, carpets are widely used in interior decoration and renovation projects. Carpets are generally divided into carpet tiles and roll carpets according to their laying method. Carpet tiles usually use a movable laying process, which is relatively simple; while roll carpets usually use a fixed laying process. In addition to the necessary processing of the ground base and the laying of the underlayment, a series of processes such as carpet cutting, pressing the seams, flattening, and edge finishing are required. The flattening and stretching process of roll carpet laying is a key process. Whether the flatness of the laying is appropriate directly affects the quality of the carpet laying and the effect of future use.
[0003] Modern carpets are often laid manually, which makes it difficult to guarantee a smooth surface and is also inefficient. To address these issues, a solution is proposed below. Utility Model Content
[0004] The purpose of this invention is to provide a carpet laying and leveling device that has the advantages of freeing up manual labor while improving the flatness and accuracy of carpet laying.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0006] A carpet laying and leveling device includes a frame and a leveling mechanism. The leveling mechanism is connected to the frame. The frame includes a middle frame and two base plates. The middle frame is provided with two horizontally arranged optical axes. The two base plates are located on both sides of the middle frame and are slidably connected to the middle frame through the optical axes.
[0007] The leveling mechanism includes a width adjustment component, two leveling components, and two leveling head components. The width adjustment component is fixed on the middle frame, and the adjustment part of the width adjustment component is connected to the two chassis respectively.
[0008] The two leveling components are respectively fixed on the two chassis, and the two leveling head components are respectively fixed on the adjustment parts of the two leveling components.
[0009] Preferably, the flattening head assembly includes a flattening head cover, a large toothed plate, and several small toothed plates. The flattening head cover is equipped with a reduction motor, which is fixed to the flattening head cover by a reduction motor mounting bracket. A control stud is connected to the upper end of the large toothed plate. The output shaft of the reduction motor passes downward through the flattening head cover, and the threaded post on the output shaft of the reduction motor is threadedly connected to the control stud. The several small toothed plates are fixedly connected to the flattening head cover by fasteners.
[0010] Preferably, two bearing seats are fixed on the upper end face of the flattening head cover, and a flattening head crossbar is inserted into the two bearing seats. Each of the two bearing seats contains a bearing, and the flattening head crossbar is inserted into the bearing. The middle part of the flattening head crossbar is connected to the flattening assembly by a fastener.
[0011] Preferably, the leveling assembly includes a leveling adjustment bracket, a leveling rebound power mechanism, and a rebound guide optical shaft. The leveling adjustment bracket is fixedly connected to one of the chassis. Two optical shaft sliders are fixedly mounted on the lower side of the leveling adjustment bracket. The rebound guide optical shaft is inserted into the two optical shaft sliders and slidably connected to them. The end of the rebound guide optical shaft connected to the leveling head assembly is its output end. A rectangular spring is sleeved on the section from the output end of the rebound guide optical shaft to the first optical shaft slider. The diameter of the rectangular spring is larger than the inner diameter of the optical shaft slider. The leveling rebound power mechanism is connected to the leveling adjustment bracket and is used to drive the rebound guide optical shaft to move, thereby compressing the rectangular spring.
[0012] Preferably, the flattening and rebound power mechanism includes a DC motor, a worm gear, a worm wheel, an intermittent gear, and a rebound adjusting rack. The rebound adjusting rack is located below the rebound guide optical shaft and is fixedly connected to the rebound guide optical shaft. The DC motor is fixedly connected to the flattening adjusting bracket. The DC motor is fixedly connected to one end of the worm gear via a coupling. The other end of the worm gear is rotatably connected to the flattening adjusting bracket. The worm wheel is located above the intermittent gear and is fixedly connected to the intermittent gear. The worm wheel and the intermittent gear are sleeved on the shaft of the flattening adjusting bracket and are rotatably connected to it. The worm wheel meshes with the worm gear, and the intermittent gear meshes with the rack.
[0013] Preferably, the width adjustment assembly includes a second DC motor, a drive gear, two width adjustment racks, and two width adjustment guide wheels. The second DC motor is fixedly connected to the intermediate frame, and the output shaft of the second DC motor is connected to the drive gear. The two width adjustment racks are fixedly connected to two chassis respectively, and the two width adjustment racks are located on both sides of the drive gear and mesh with the drive gear. The two width adjustment guide wheels are respectively connected to the two chassis through wheel frames, and the width adjustment guide wheels are in rolling engagement with the intermediate frame.
[0014] Preferably, the lower end face of the frame is provided with three sets of caster wheels, each set containing two caster wheels. The three sets of caster wheels are a front caster wheel set, a middle caster wheel set, and a rear caster wheel set. The height of the front caster wheel set is lower than that of the middle caster wheel set, and the height of the middle caster wheel set is lower than that of the rear caster wheel set. In the middle caster wheel set, the height of the front caster wheel is lower than that of the rear caster wheel.
[0015] Preferably, the frame is also provided with a power mechanism, which includes a drive wheel, a transmission belt, a drive pulley, and a stepper motor. The stepper motor is fixedly connected to the frame via a bracket, and the output shaft of the stepper motor is connected to the drive pulley. The drive shaft of the drive wheel is fixedly connected to two bearing seats on the lower side of the frame. A driven pulley is provided on the drive shaft of the drive wheel, and the transmission belt is sleeved on the drive pulley and the driven pulley.
[0016] The beneficial effects of this utility model are as follows:
[0017] 1. The addition of a worm gear mechanism to the gear set utilizes the unidirectional self-locking characteristic of the worm gear transmission to achieve rigid locking during transportation, effectively preventing the mechanism from going out of control during transportation and use.
[0018] 2. The intermittent gear mechanism with non-complete tooth meshing, combined with rectangular springs, allows the mechanism to more closely resemble the actual human force exertion process, efficiently accumulating and releasing force; at the same time, by changing different rectangular spring models, the device can be adapted to a wider range of carpet materials.
[0019] 3. A self-designed width adjustment device is added to the equipment. The width of the equipment is controlled by a gear driven by a DC motor. The axial constraint of the optical axis and the lateral limit of the width adjustment guide wheel ensure the accuracy of the motion trajectory, so as to adapt to the needs of different application scenarios and increase the applicability and practicality of the equipment.
[0020] 4. Add an electrically adjustable large toothed plate to the flattening head to ensure that the toothed pins of the flattening head are at the appropriate length, thus ensuring applicability to carpets of various thicknesses.
[0021] 5. The design of replaceable rectangular springs in the flattening mechanism allows for the selection of springs with appropriate strength according to carpets of different hardness and thickness, ensuring applicability to carpets of various materials and thicknesses. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of an embodiment;
[0023] Figure 2 This is a schematic diagram of the frame structure for an example embodiment;
[0024] Figure 3 This is a schematic diagram illustrating the structure of two flattening components in an embodiment;
[0025] Figure 4 This is a schematic diagram illustrating the structure of the flattening head assembly in an embodiment.
[0026] Figure 5This is a cross-sectional view of the flattened head assembly in the embodiment;
[0027] Figure 6 This is a schematic diagram illustrating the structure of the power mechanism in an embodiment.
[0028] Reference numerals: 1. Frame; 11. Intermediate frame; 12. Chassis; 13. Optical shaft; 14. Front universal wheel assembly; 15. Middle universal wheel assembly; 16. Rear universal wheel assembly; 2. Width adjustment assembly; 21. DC motor II; 22. Drive gear; 23. Width adjustment rack; 24. Width adjustment guide wheel; 3. Leveling assembly; 31. Leveling adjustment bracket; 32. Springback guide optical shaft; 33. Rectangular spring; 34. DC motor I; 35. Worm gear; 36. Worm wheel; 37. Intermittent gear; 38. Springback adjustment rack; 4. Leveling head assembly; 41. Leveling head cover; 42. Large gear plate; 43. Small gear plate; 44. Gear motor; 45. Control stud; 46. Leveling head crossbar; 5. Power mechanism; 51. Drive wheel; 52. Transmission belt; 53. Driving pulley; 54. Stepper motor; 55. Driven pulley. Detailed Implementation
[0029] The following description is merely a preferred embodiment of this utility model, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of this utility model's concept should be protected. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom" and "top," "inner" and "outer" refer to directions toward or away from the geometric center of a specific component.
[0030] like Figures 1 to 6 As shown, a carpet laying and leveling device includes a frame 1 and a leveling mechanism. The frame 1 consists of a middle frame 11 and two base plates 12 on the left and right. Two transverse optical axes 13 are fixed on the middle frame 11, and the base plates 12 are slidably connected to the optical axes 13 via sliders, so that the base plates 12 can move laterally along the optical axes 13.
[0031] The leveling mechanism includes a width adjustment component 2, two leveling components 3, and two leveling head components 4. The width adjustment component 2 is fixed to the middle frame 11 and connected to two base plates 12. The two leveling components 3 are respectively fixed below the two base plates 12, and the leveling head components 4 are installed at the output end of the leveling components 3. In this design, the output end of the leveling component 3 is considered the front side.
[0032] The width adjustment assembly 2 includes a second DC motor 21, a drive gear 22, and two width adjustment racks 23. The second DC motor 21 is fixed in the middle of the intermediate frame 11, and its output shaft is connected to the drive gear 22. The two racks are fixed to the inner sides of the left and right chassis 12 respectively, and symmetrically mesh with the two sides of the drive gear 22. The power output from the second DC motor 21 is transmitted to the drive gear 22 through a coupling, causing the drive racks to make lateral linear movements, thereby realizing the adjustment of the overall width of the frame 1.
[0033] Width-adjustable guide wheels 24 are installed on the chassis 12, with wheel frames fixed to the chassis 12. The width-adjustable guide wheels 24 roll in contact with the side rails of the intermediate frame 11. During the lateral unfolding of the related components driven by the rack and pinion movement, a sliding pair consisting of the guide shaft 13 and the slider of the shaft 13 provides precise linear guidance. The width-adjustable guide wheels 24 cooperate with the aluminum profile of the intermediate frame 11 to prevent lateral displacement or torsion of the moving parts, ensuring a smooth and precise unfolding process.
[0034] In this design, the frame 1 can be precisely adjusted in width from 1000mm to 1600mm to meet the needs of different working scenarios.
[0035] The leveling assembly 3 includes a leveling adjustment bracket 31, a DC motor 34, a spring-loaded guide optical shaft 32, and a rectangular spring 33. The leveling adjustment bracket 31 is fixed to the base 12, and two optical shaft 13 sliders are mounted on it. The spring-loaded guide optical shaft 32 passes through the optical shaft 13 sliders, and its front end is connected to the crossbar of the leveling head assembly 4, and a rectangular spring 33 is fitted onto it. The diameter of the spring is larger than the inner hole of the optical shaft 13 slider, forming a pre-pressure buffer.
[0036] The power mechanism 5 includes a worm gear 35 driven by a DC motor 34. The worm gear 35 meshes with a worm wheel 36, which is coaxially fixed with an intermittent gear 37. The intermittent gear 37 meshes with a spring-loaded adjusting rack 38 fixed on the optical shaft 13.
[0037] The power output from the DC motor 34 drives the worm gear 35 to rotate via a coupling. The worm gear 35 meshes with the worm wheel 36, forming a highly efficient one-way self-locking reduction mechanism. The intermittent gear 37, which is fixed to the same gear shaft as the worm wheel 36, rotates accordingly, and its teeth drive the springback adjusting rack 38 to move in a linear direction.
[0038] The movement of the springback adjusting rack 38 is constrained by the linear guidance of the springback guide optical axis 32 and the slider of the optical axis 13, while the lateral limiter of the springback adjusting rack 38 ensures that its movement trajectory does not deviate.
[0039] During this process, the springback adjusting rack 38 continuously compresses the rectangular spring 33, converting the rotational kinetic energy of the DC motor into the elastic potential energy of the rectangular spring 33.
[0040] When the rectangular spring 33 is compressed to a preset stroke, the intermittent gear 37 rotates precisely to the toothless portion of its springback adjusting rack 38, disengaging the springback adjusting rack 38 from the intermittent gear 37. The rectangular spring 33 instantaneously releases its stored elastic potential energy, pushing the carpet flattening head, which is rigidly connected to the rack.
[0041] Guided by the cooperation of the guide optical axis 13 and the slider of the optical axis 13, and constrained by the rack and pinion transverse limiter, the carpet leveling head pushes forward at high speed along a predetermined straight line, completing the impact leveling action on the carpet. The coordinated action of this series of actions ensures that the carpet leveling device can operate efficiently and stably, achieving its design purpose.
[0042] The flattening head assembly 4 includes a flattening head cover 41, a large toothed plate 42, and three serrated small toothed plates 43. The four small toothed plates 43 are bolted to the bottom of the cover, forming a carpet gripping tooth array. A geared motor 44 is mounted on the top of the flattening head cover 41 via a mounting bracket; its output shaft passes downwards through the cover and connects to a threaded post. A control stud 45 is welded to the top of the large toothed plate 42, forming a threaded pair with the threaded post. Starting the geared motor 44 drives the large toothed plate 42 to move vertically up and down, dynamically adjusting the spacing between the flattening head toothed plates to adapt to carpets of different thicknesses, improving equipment compatibility and ensuring the flatness and efficiency of carpet laying.
[0043] Three sets of casters are installed at the bottom of the frame 1. The front caster set 14 is the lowest and is close to the carpet surface; the middle caster set 15 adopts a stepped layout with the front wheel height H1 and the rear wheel height H2, where H2>H1; the rear caster set 16 is the highest, which makes the frame 1 tilt to form an angle.
[0044] The drive unit includes a stepper motor 54, a drive pulley 53, a transmission belt 52, and a drive wheel 51. The stepper motor 54 is fixed to the intermediate frame 11 by a bracket, and the output shaft of the stepper motor 54 is connected to the drive pulley 53. Bearing seats are installed at both ends of the shaft of the drive wheel 51, and a driven pulley 55 is set on the shaft. The belt connects the drive pulley and the driven pulley. The transmission belt 52 is sleeved on the driven pulley 55 and the drive pulley 53.
[0045] The power output by the stepper motor 54 drives the drive pulley 53 to rotate through its output shaft, and transmits the power to the driven pulley 55 via the transmission belt 52; the driven pulley 55 drives the drive shaft coaxial with it to rotate, thereby causing the drive wheel 51 to rotate.
[0046] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A carpet laying and leveling device, comprising a frame (1) and a leveling mechanism, wherein the leveling mechanism is connected to the frame (1), characterized in that, The frame (1) includes a middle frame (11) and two bases (12). The middle frame (11) is provided with two horizontally arranged optical axes (13). The two bases (12) are located on both sides of the middle frame (11) and are slidably connected to the middle frame (11) through the optical axes (13). The flattening mechanism includes a width adjustment component (2), two flattening components (3) and two flattening head components (4). The width adjustment component (2) is fixed on the middle frame (11), and the adjustment part of the width adjustment component (2) is connected to the two chassis (12) respectively. The two leveling components (3) are fixed on the two chassis (12) respectively, and the two leveling head components (4) are fixed on the adjustment parts of the two leveling components (3) respectively.
2. The carpet laying and leveling device according to claim 1, characterized in that, The flattening head assembly (4) includes a flattening head cover (41), a large toothed plate (42), and several small toothed plates (43). The flattening head cover (41) is equipped with a reduction motor (44). The reduction motor (44) is fixed to the flattening head cover (41) by a reduction motor (44) fixing seat. The upper end of the large toothed plate (42) is connected to a control stud (45). The output shaft of the reduction motor (44) passes through the flattening head cover (41) downward, and the threaded post on the output shaft of the reduction motor (44) is threadedly connected to the control stud (45). Several small toothed plates (43) are fixedly connected to the flattening head cover (41) by fasteners.
3. The carpet laying and leveling device according to claim 2, characterized in that, Two bearing seats are fixed on the upper end face of the flattening head cover (41), and a flattening head crossbar (46) is inserted into the two bearing seats. Each of the two bearing seats is provided with a bearing, and the flattening head crossbar (46) is inserted into the bearing. The middle part of the flattening head crossbar (46) is connected to the flattening assembly (3) by fasteners.
4. The carpet laying and leveling device according to claim 1, characterized in that, The leveling assembly (3) includes a leveling adjustment bracket (31), a leveling rebound power mechanism (5), and a rebound guide optical shaft (32). The leveling adjustment bracket (31) is fixedly connected to one of the chassis (12). Two optical shaft (13) sliders are fixedly provided on the lower side of the leveling adjustment bracket (31). The rebound guide optical shaft (32) is inserted into the two optical shaft (13) sliders and is slidably connected to the optical shaft (13) sliders. The end of the rebound guide optical shaft (32) connected to the leveling head assembly (4) is its output end. A rectangular spring (33) is sleeved on the section from the output end of the rebound guide optical shaft (32) to the first optical shaft (13) slider. The diameter of the rectangular spring (33) is larger than the inner diameter of the optical shaft (13) slider. The leveling rebound power mechanism (5) is connected to the leveling adjustment bracket (31). The leveling rebound power mechanism (5) is used to drive the rebound guide optical shaft (32) to move in order to compress the rectangular spring (33).
5. A carpet laying and leveling device according to claim 4, characterized in that, The flattening and rebounding power mechanism (5) includes a DC motor (34), a worm (35), a worm wheel (36), an intermittent gear (37), and a rebound adjusting rack (38). The rebound adjusting rack (38) is located below the rebound guide optical shaft (32) and is fixedly connected to the rebound guide optical shaft (32). The DC motor (34) is fixedly connected to the flattening adjusting bracket (31). The DC motor (34) is fixedly connected to one end of the worm (35) through a coupling. The other end of the worm (35) is rotatably connected to the flattening adjusting bracket (31). The worm wheel (36) is located above the intermittent gear (37) and is fixedly connected to the intermittent gear (37). The worm wheel (36) and the intermittent gear (37) are sleeved on the shaft of the flattening adjusting bracket (31) and rotatably connected to it. The worm wheel (36) meshes with the worm (35), and the intermittent gear (37) meshes with the rack.
6. A carpet laying and leveling device according to claim 1, characterized in that, The width adjustment assembly (2) includes a second DC motor (21), a drive gear (22), two width adjustment racks (23) and two width adjustment guide wheels (24). The second DC motor (21) is fixedly connected to the intermediate frame (11). The output shaft of the second DC motor (21) is connected to the drive gear (22). The two width adjustment racks (23) are fixedly connected to the two chassis (12) respectively. The two width adjustment racks (23) are located on both sides of the drive gear (22) and are meshed with the drive gear (22). The two width adjustment guide wheels (24) are connected to the two chassis (12) respectively through wheel frames, and the width adjustment guide wheels (24) are in rolling cooperation with the intermediate frame (11).
7. A carpet laying and leveling device according to claim 1, characterized in that, The lower end face of the frame (1) is provided with three sets of caster wheels, each set of which includes two caster wheels. The three sets of caster wheels are the front caster wheel set (14), the middle caster wheel set (15), and the rear caster wheel set (16). The height of the front caster wheel set (14) is lower than that of the middle caster wheel set (15), and the height of the middle caster wheel set (15) is lower than that of the rear caster wheel set (16). Among the two caster wheels in the middle caster wheel set (15), the height of the caster wheel on the front side is lower than that of the caster wheel on the rear side.
8. A carpet laying and leveling device according to claim 1, characterized in that, The frame (1) is also provided with a power mechanism (5), which includes a drive wheel (51), a transmission belt (52), a drive pulley (53) and a stepper motor (54). The stepper motor (54) is fixedly connected to the frame (1) through a bracket. The output shaft of the stepper motor (54) is connected to the drive pulley (53). The drive shaft of the drive wheel (51) is fixedly connected to two bearing seats on the lower side of the frame (1). A driven pulley (55) is provided on the drive shaft of the drive wheel (51). The transmission belt (52) is sleeved on the drive pulley (53) and the driven pulley (55).