Partition wall masonry reference instrument with clamping function
By setting a clamping component on the laser line projector, the problems of requiring additional personnel and unstable line projection in the existing technology are solved, thereby improving the stability of laser line projection and the quality of masonry.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-05-15
AI Technical Summary
Existing portable laser line laying instruments require additional personnel assistance during the masonry process and have poor line laying stability, which affects construction efficiency and quality.
Design a partition wall masonry reference instrument with clamping function. The clamping component includes a fixed clamp, a movable clamp and a slide. The laser line projector is fixed on the floor slab or frame beam by the clamping mechanism to provide stable laser line projection.
No additional personnel are required, ensuring the stability of laser-based line laying, improving masonry quality, and reducing labor costs.
Smart Images

Figure CN224245900U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction tools, and in particular to a partition wall masonry reference instrument with clamping function. Background Technology
[0002] A laser line-laying instrument is a high-tech construction tool that projects high-precision horizontal, vertical, or intersecting lines using a laser. It is widely used in construction, decoration, and partition wall construction to quickly establish baselines, replacing traditional chalk lines or plumb lines, significantly improving construction efficiency and accuracy, reducing rework, and enhancing project quality.
[0003] The utility model patent with application number CN201822212919.3 proposes a portable laser line laying device. The line laying device has a fixing block above the adjustment component, and a connecting ring is fixed on the fixing block. The connecting ring can be easily held in the hand during use. It lays lines by hand to provide a reference during decoration or wall construction. However, it has the problems of requiring additional personnel assistance and poor line laying stability, which need to be improved. Utility Model Content
[0004] To solve the above problems, this utility model proposes a partition wall masonry reference instrument with clamping function.
[0005] The technical solution of this utility model is as follows: a partition wall masonry reference instrument with clamping function, including a laser projector, a support plate and a clamping assembly. The clamping assembly includes a fixed clamp, a movable clamp and a slide. The fixed clamp is fixed to the end of the support plate and is vertically connected to the support plate to form a vertical limiting structure. The slide is slidably installed in the middle of the support plate through a sliding hole in its middle part. The movable clamp and the fixed clamp are arranged facing each other. The movable clamp is located at the upper end of the slide. An extension rod is provided on the upper surface of the slide. The movable clamp is located at the upper end of the extension rod. A locking mechanism is provided inside the slide. A support is provided at the upper end of the laser projector. A movable seat is provided on the support. The movable seat is slidably connected to the support plate between the fixed clamp and the slide.
[0006] Preferably, the locking mechanism includes a receiving cavity, a pressure plate, and a V-shaped spring inside the slide. The upper part of the receiving cavity is provided with a swing hole, the size of which is larger than the cross-sectional size of the pressure plate. The pressure plate is inserted into the receiving cavity through the swing hole. The middle part of the pressure plate is provided with an elongated hole that fits onto the support plate. Both ends of the elongated hole are provided with arcs, and the size of the elongated hole is larger than the cross-sectional size of the support plate. The V-shaped spring is sleeved between the pressure plate and the cavity wall of the receiving cavity to provide elastic clamping force for the pressure plate.
[0007] Preferably, the lower part of the inner wall of the receiving cavity is provided with a step, and the lower end of the V-shaped spring is supported on the step. The V-shaped spring has a double V-shaped structure.
[0008] Preferably, the movable chuck includes a clamping plate, a handle, and a lead screw. The clamping plate is fixed to one end of the lead screw, and the handle is fixed to the other end of the lead screw. A threaded hole is provided on the upper part of the slide, and the lead screw is connected in the threaded hole. The clamping plate is a circular plate, and the clamping plate is coaxially connected to the lead screw, and the lead screw is coaxially connected to the handle.
[0009] Preferably, the movable seat is provided with a set screw on its side, and the outer end of the set screw is provided with a butterfly structure to facilitate turning. The movable seat is locked or released by the set screw.
[0010] Preferably, the sliding hole inside the movable seat is provided with a U-shaped groove in the middle, the U-shaped groove passes through both ends of the movable seat, and the threaded hole passes through the middle of the U-shaped groove.
[0011] Preferably, the upper and lower sides of the support plate are densely covered with anti-slip grooves along the length direction, forming a rough textured structure, and the edges of the support plate are provided with transition rounded corners to improve the smoothness of sliding of the support plate.
[0012] Preferably, the fixed clamp is sleeved on the end of the support plate, and a fastening bolt is provided between the fixed clamp and the support plate.
[0013] The beneficial technical effects of this utility model are as follows: The laser line projector of this utility model is installed on a support plate. By setting a fixed clamp and a movable clamp on the support plate to form a clamping mechanism, the laser line projector can be clamped to the main beam or frame beam of the floor slab through the clamping mechanism during the construction of the partition wall. This allows it to provide a continuous and stable laser line for the wall construction in a fixed position, without the need for additional personnel assistance. This helps to improve the quality of the wall construction and reduce labor costs. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0015] Figure 2 yes Figure 1 A schematic diagram of the AA-direction cross-section structure;
[0016] Figure 3 yes Figure 2 A magnified view of a portion of the image;
[0017] Figure 4 This is a three-dimensional structural diagram of the present invention after removing the laser line projector;
[0018] Figure 5 This is a schematic diagram of the clamping assembly within the slide.
[0019] Figure 6 This is a three-dimensional structural diagram of the pressure plate and the V-shaped spring.
[0020] In the diagram, 1. Laser projector, 11. Support, 12. Movable base, 13. Set screw, 14. U-groove, 2. Support plate, 21. Anti-slip groove, 31. Fixed chuck, 32. Slide, 33. Clamping plate, 34. Handle, 35. Lead screw, 36. Threaded hole, 41. Sliding hole, 42. Receiving cavity, 421. Step, 43. Swing hole, 44. Pressure plate, 441. Long hole, 45. V-shaped spring, 5. Fastening bolt. Detailed Implementation
[0021] Example 1, see appendix Figure 1-4 A partition wall masonry reference instrument with clamping function includes a laser line projector 1, a support plate 2, and a clamping assembly. The clamping assembly includes a fixed clamp 31, a movable clamp, and a slide 32. The fixed clamp 31 is fixed to the end of the support plate 2. The slide 32 is slidably mounted in the middle of the support plate 2 through a sliding hole 41 in its middle. The movable clamp is located at the upper end of the slide 32, and a locking mechanism is provided inside the slide 32. The upper end of the laser line projector 1 is provided with a support 11, and a movable seat 12 is provided on the support 11. The movable seat 11 is slidably connected to the support plate 2 between the fixed clamp 31 and the slide 32. By setting the fixed clamp 31 and the movable clamp on the support plate 2 to form a clamping mechanism, the laser line projector 1 can be clamped to the main beam or frame beam of the floor slab during the wall construction process, so that it can provide continuous and stable laser line projection for wall construction in a fixed position without the need for additional personnel assistance, thereby improving the quality of wall construction.
[0022] The movable chuck includes a clamping plate 33, a handle 34, and a lead screw 35. The clamping plate is fixed to one end of the lead screw 35, and the handle is fixed to the other end of the lead screw. A threaded hole 36 is provided on the upper part of the slide 32, and the lead screw 35 is connected in the threaded hole 36. By holding and rotating the handle 34, the lead screw can be driven to extend and retract within the threaded hole 36, thereby driving the clamping plate 33 to move along the support plate 2 to achieve the clamping function. At the same time, a ball joint connection structure can be provided between the clamping plate 33 and the lead screw to allow relative rotation between the two, avoiding hard friction when the clamping plate is pressed.
[0023] The movable seat 12 is provided with a set screw 13 on its side. The movable seat is locked or released by the set screw. The set screw 13 is connected in the threaded hole 36 on the side of the movable seat 12. The movable seat 12 is locked on the support plate 2 by tightening the set screw 13.
[0024] The sliding hole 41 inside the movable seat 12 is provided with a U-shaped groove 14 in the middle, which passes through both ends of the movable seat.
[0025] The upper and lower sides of the support plate 2 are densely covered with anti-slip grooves 21 along the length direction. The anti-slip grooves 21 form a serrated anti-slip texture structure, which provides high frictional support for the connection between the slide block 32 and the moving seat 12 and the support plate 2, avoids the phenomenon of slippage caused by poor locking effect, and ensures the quality of laser line laying construction.
[0026] The fixed chuck 31 is sleeved on the end of the support plate 2. A fastening bolt 5 is provided between the fixed chuck 31 and the support plate 2. The fixed chuck 31 adopts a movable docking connection structure, which facilitates the replacement of parts and reduces costs.
[0027] Example 2, see appendix Figure 3-5 Based on Embodiment 1, this embodiment designs the locking mechanism as including a receiving cavity 42, a pressure plate 44, and a V-shaped spring 45 inside the slide 32. The upper part of the receiving cavity 42 is provided with a swing hole 43. The pressure plate is inserted into the receiving cavity through the swing hole. The upper part of the pressure plate 44 can swing within the swing hole 43. The middle part of the pressure plate 44 is provided with an elongated hole 441 that fits onto the support plate 2. The size of the elongated hole is larger than the cross-sectional size of the support plate 2, so that it has a certain amount of movement when fitted onto the support plate 2. The V-shaped spring 45 is fitted between the pressure plate 44 and the cavity wall of the receiving cavity 42. The lower part of the inner wall of the receiving cavity 42 is provided with a step 421. The lower end of the V-shaped spring 45 is supported on the step 421. The step 421 restricts the V-shaped spring 45 within the receiving cavity 42, so that it has sufficient elastic support force.
[0028] When using the reference instrument in this embodiment, the slide 32 is adjusted according to the size of the beam or wall at the clamping position. Pressing the upper part of the pressure plate 44 inside the adjustment seat compresses the V-shaped spring 45 below the pressure plate 44, and the elongated hole 441 in the middle of the pressure plate 44 leaves the support plate 2, releasing the lock on the slide 32. At this time, holding the handle 34 can drive the slide 32 to move along the support plate 2. When the clamping plate 33 on the slide 32 contacts the beam or wall, the pressure plate 44 is released. Under the action of the V-shaped spring 45, the pressure plate presses the support plate 2 again through the elongated hole 441, fixing the slide 32. Then, holding the handle 34 and rotating it, the clamping plate 33 is driven to press against the side of the beam or wall through the screw 35, fixing the reference instrument. Then, by moving the position of the laser line projector 1 on the support plate 2, it is aligned with the wall masonry position, and the masonry worker performs wall masonry according to the laser line projector 1.
Claims
1. A partition wall masonry reference instrument with clamping function, characterized in that: The device includes a laser line projector, a support plate, and a clamping assembly. The clamping assembly includes a fixed clamp, a movable clamp, and a slide. The fixed clamp is fixed to the end of the support plate, and the slide is slidably mounted in the middle of the support plate through a sliding hole in the middle. The movable clamp is located at the upper end of the slide, and a locking mechanism is provided inside the slide. The upper end of the laser line projector is provided with a support, and a movable seat is provided on the support. The movable seat is slidably connected to the support plate between the fixed clamp and the slide. The locking mechanism includes a receiving cavity, a pressure plate, and a V-shaped spring inside the slide. The upper part of the receiving cavity is provided with a swing hole. The pressure plate is inserted into the receiving cavity through the swing hole. The middle part of the pressure plate is provided with an elongated hole that is fitted onto the support plate. The size of the elongated hole is larger than the cross-sectional size of the support plate. The V-shaped spring is fitted between the pressure plate and the cavity wall of the receiving cavity.
2. The partition wall masonry reference instrument with clamping function according to claim 1, characterized in that: The lower part of the inner wall of the cavity is provided with a step, and the lower end of the V-shaped spring is supported on the step.
3. The partition wall masonry reference instrument with clamping function according to claim 1, characterized in that: The movable chuck includes a clamping plate, a handle, and a lead screw. The clamping plate is fixed to one end of the lead screw, and the handle is fixed to the other end of the lead screw. A threaded hole is provided on the upper part of the slide, and the lead screw is connected to the threaded hole.
4. The partition wall masonry reference instrument with clamping function according to claim 1, characterized in that: The movable seat is provided with a set screw on its side, which is used to lock or release the movable seat.
5. The partition wall masonry reference instrument with clamping function according to claim 4, characterized in that: The sliding hole inside the movable seat has a U-shaped groove in the middle, which runs through both ends of the movable seat.
6. The partition wall masonry reference instrument with clamping function according to claim 1, characterized in that: The upper and lower sides of the support plate are densely covered with anti-slip grooves along the length direction.
7. The partition wall masonry reference instrument with clamping function according to claim 1, characterized in that: The fixed clamp is sleeved on the end of the support plate, and a fastening bolt is provided between the fixed clamp and the support plate.