Wire drawing device for building measurement
By combining the adjustment mechanism with the laser head, the problem of difficulty in judging the pitch angle of the measuring line is solved, enabling precise adjustment and uniform winding of the measuring line, thus improving the accuracy and practicality of building surveying.
Patent Information
- Application Number
- CN202423316415.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing building surveying line pulling devices are difficult to determine the elevation angle of the surveying line, and the electric push rod lifting and adjusting increases the cost of the device, making it inconvenient to promote.
The system employs an adjustment mechanism in conjunction with a laser head. The direction and pitch angle of the measurement line are adjusted via a push plate, and the measurement line is wound up evenly using a synchronous pulley and lead screw structure.
It improves the accuracy of the measuring line and the practicality of the device, reduces measurement errors, and provides high-precision positioning assurance for building construction.
Smart Images
Figure CN223710658U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building surveying technology, and in particular to a string-drawing device for building surveying. Background Technology
[0002] In the construction process, surveying is the cornerstone for ensuring the accurate positioning and construction of building structures. From the excavation of the foundation to the gradual construction of floors, and then to the installation of complex structures, accurate measurement results are directly related to the quality and safety of the building. A search revealed a Chinese patent entitled "A Wire-Pulling Device for Building Measurement," which includes a base plate. A first electric telescopic rod is fixedly connected to the center of the top of the base plate. A support plate is fixedly connected to the top of the first electric telescopic rod. A clamping box is fixedly connected to the top of the support plate. A servo motor is fixedly connected to one side of the clamping box. A bidirectional screw is fixedly connected to the output end of the servo motor. A threaded sleeve is threadedly connected to the outer periphery of the bidirectional screw. This invention uses the first electric telescopic rod to raise and lower the support plate, facilitating the adjustment of the wire-pulling height. The clamping box allows the vertical plate to move in the opposite direction, facilitating stable clamping of different types of wire rollers and preventing swaying. A second electric telescopic rod raises and lowers the needle-shaped pins. When the needle-shaped pins are inserted into the soil, the overall stability of the device is improved, preventing positional shifts during wire-pulling measurements and ensuring accuracy.
[0003] The aforementioned patent for a string-guided device for building surveying has the following drawbacks: the device improves the accuracy of the measurement by using a laser positioning device in conjunction with the measuring line, but it is difficult to determine the pitch angle of the measuring line. Furthermore, the use of an electric push rod for lifting and adjusting increases the manufacturing cost of the device and makes it difficult to promote the equipment. Therefore, a string-guided device for building surveying has been designed. Summary of the Invention
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a string-drawing device for building surveying.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A wire-pulling device for building surveying includes a housing with a through hole at one end. Vertical holes and insertion holes are located on both sides of the end of the housing near the through hole. A common adjustment mechanism is provided between the two insertion holes. The adjustment mechanism includes a U-shaped frame slidably connected to the inside of the through hole. T-shaped blocks are fixedly connected to both sides of the outer wall of the U-shaped frame, and each T-shaped block is slidably connected to adjacent vertical holes. Two guide rollers are rotatably connected between the two U-shaped frames near the inside of the housing. Rotating rods are rotatably connected between the two sides of the U-shaped frames away from the housing. A common wire-feeding block is fixedly connected between the two rotating rods. A through hole is provided in the middle of the wire-feeding block. A first laser head is provided on the side of the wire-feeding block away from the housing. A scale is fixedly connected to the inner side of the U-shaped frame near the rotating rod, and the scale is coaxial with the rotating rod. A second laser head is provided on the side of the wire-feeding block near the scale.
[0007] Preferably, the adjustment mechanism further includes sliding holes on both sides of the top of the U-shaped frame. A T-shaped insert is slidably connected to each of the two sliding holes, and each T-shaped insert is adapted to the adjacent insert. The same sliding rod is fixedly connected between the two ends of each sliding hole, and each sliding rod slides through the bottom of the adjacent T-shaped insert. A round hole adapted to the sliding rod is opened at the bottom of each of the two T-shaped inserts. A push plate is fixedly connected to the adjacent side of each of the two T-shaped inserts, and the same spring is fixedly connected between the two push plates. Through the setting of the adjustment mechanism, the measurement is more accurate and the direction of the measurement line is easy to adjust.
[0008] Preferably, a baffle is fixedly connected to the inner wall of the outer casing near the adjustment mechanism, and a strip-shaped hole is opened in the middle of the baffle. A connecting plate is fixedly connected to the side of the baffle away from the adjustment mechanism near the top and bottom. The other ends of the two connecting plates are fixedly connected to one side of the inner wall of the outer casing. The same winding roller is rotatably connected between the two connecting plates on the side away from the baffle. A motor is fixedly connected to the bottom of the bottom connecting plate, and the output end of the motor passes through the connecting plate and is fixedly connected to one end of the winding roller. With the cooperation of the motor, the measuring line can be wound up faster and more conveniently.
[0009] Preferably, a reciprocating lead screw is rotatably connected between the two connecting plates near the baffle, and a screw block is screwed onto the circumferential surface of the reciprocating lead screw. A lead screw sleeve is fixedly sleeved on the screw block, and a pin hole is provided radially on the inner circumferential surface of the lead screw sleeve. A crescent pin that mates with the reciprocating lead screw is provided in the pin hole, and a guide hole is provided on one side of the screw block.
[0010] Preferably, the same round rod is fixedly connected between the two connecting plates on the side near the baffle, and the round rod slides through the screw block. The screw block has a round hole that matches the round rod. The top of the reciprocating screw is fixedly connected to the connecting plate through the connecting plate, and the top connecting plate has a round hole that matches the reciprocating screw.
[0011] Preferably, a first synchronous pulley is fixedly connected to the top of the take-up roller through the connecting plate, and the same synchronous belt is sleeved between the first synchronous pulley and the second synchronous pulley. Through the arrangement of the synchronous belt, the first synchronous pulley, and the second synchronous pulley, the reciprocating screw can rotate with the take-up roller, thereby making the measurement and winding more uniform.
[0012] Preferably, a measuring line is fixedly connected to the take-up roller, and the other end of the measuring line passes through the screw block, the strip hole and the through hole respectively.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. Due to the adoption of an adjustment mechanism, the height of the measuring line emerging from the casing can be easily adjusted by pressing the push plate, thus facilitating user operation. The cooperation of the first laser head, second laser head, and third laser head makes it easy to determine the direction and pitch angle of the measuring line, improving measurement accuracy. This effectively solves the problem of difficulty in determining the pitch angle mentioned in the background technology, thereby enabling easy adjustment of the measuring line's exit height to adapt to different measurement scenarios and height requirements. It can accurately determine the direction and pitch angle of the measuring line, overcoming the difficulty in determining the pitch angle in traditional measurement methods, greatly reducing measurement errors, and providing a reliable guarantee for high-precision positioning and construction in building construction.
[0015] 2. By setting up the first synchronous pulley, screw block, reciprocating screw, and second synchronous pulley, the measuring line can be evenly distributed on the take-up roller during winding, avoiding concentration in one place and improving the practicality of the device. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a wire-pulling device for building surveying proposed in this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the adjustment mechanism of the stringing device for building surveying proposed in this utility model.
[0018] Figure 3 This utility model proposes a string-pull device for building surveying. Figure 2 An enlarged structural diagram at point A;
[0019] Figure 4This is a cross-sectional structural diagram of the housing of a wire-pulling device for building surveying proposed in this utility model.
[0020] Figure 5 This utility model proposes a string-pull device for building surveying. Figure 4 An enlarged structural diagram of point B.
[0021] In the diagram: 1. Outer shell; 101. Vertical hole; 102. Insertion hole; 2. Adjustment mechanism; 201. U-shaped frame; 202. T-shaped block; 203. Guide roller; 204. Rotating rod; 205. Wire feeding block; 206. Through hole; 207. First laser head; 208. Second laser head; 209. Dial; 210. T-shaped insertion rod; 211. Slide rod; 212. Push plate; 213. Spring; 3. Baffle; 301. Strip hole; 4. Connecting plate; 401. Motor; 402. Take-up roller; 403. First synchronous pulley; 404. Synchronous belt; 5. Reciprocating lead screw; 501. Round rod; 502. Screw block; 503. Guide hole; 504. Second synchronous pulley. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Reference Figures 1-5 A wire-pulling device for building surveying includes a housing 1. One end of the housing 1 has a through hole. Vertical holes 101 and insertion holes 102 are provided on both sides of the end of the housing 1 near the through hole. A common adjusting mechanism 2 is provided between the two insertion holes 102. The adjusting mechanism 2 includes a U-shaped frame 201 slidably connected to the inside of the through hole. T-shaped blocks 202 are fixedly connected to both sides of the outer wall of the U-shaped frame 201, and each T-shaped block 202 is slidably connected to the adjacent vertical hole 101. Two guide rollers 203 are rotatably connected between the two U-shaped frames 201 near the inside of the housing 1. The two sides of the U-shaped frame 201 away from the end of the housing 1... A rotating rod 204 is rotatably connected between the two rotating rods 204. A wire feeding block 205 is fixedly connected between the two rotating rods 204. A through hole 206 is opened in the middle of the wire feeding block 205. A first laser head 207 is set on the side of the wire feeding block 205 away from the outer shell 1. A scale 209 is fixedly connected to the inner side of the U-shaped frame 201 near the rotating rod 204. The scale 209 is coaxial with the rotating rod 204. A second laser head 208 is set on the side of the wire feeding block 205 near the scale 209. The setting of the second laser head 208, the scale 209 and the first laser head 207 improves the measurement accuracy of the measuring line.
[0024] In this utility model, the adjustment mechanism 2 also includes sliding holes on both sides of the top of the U-shaped frame 201. T-shaped inserts 210 are slidably connected in both sliding holes, and each T-shaped insert 210 is adapted to the adjacent insert hole 102. The same slide rod 211 is fixedly connected between the two ends of each sliding hole, and each slide rod 211 slides through the bottom of the adjacent T-shaped insert 210. The bottom of both T-shaped inserts 210 is provided with a round hole adapted to the slide rod 211. Push plates 212 are fixedly connected to the adjacent side of the two T-shaped inserts 210, and the same spring 213 is fixedly connected between the two push plates 212. Through the arrangement of push plates 212, T-shaped inserts 210, etc., it is convenient to adjust the height of the U-shaped frame 201, and thus adjust the height of the measuring line released from the outer shell 1, which is convenient for use.
[0025] In this utility model, a baffle 3 is fixedly connected to the inner wall of the outer shell 1 near the adjustment mechanism 2, and a strip hole 301 is opened in the middle of the baffle 3. A connecting plate 4 is fixedly connected to the side of the baffle 3 away from the adjustment mechanism 2 near the top and bottom. The other end of the two connecting plates 4 is fixedly connected to one side of the inner wall of the outer shell 1. The same winding roller 402 is rotatably connected between the two connecting plates 4 away from the baffle 3. A motor 401 is fixedly connected to the bottom of the bottom connecting plate 4, and the output end of the motor 401 passes through the connecting plate 4 and is fixedly connected to one end of the winding roller 402. By rotating the motor 401, the measuring line is wound up faster.
[0026] In this utility model, a reciprocating lead screw 5 is rotatably connected between the two connecting plates 4 near the end of the baffle 3, and a screw block 502 is screwed onto the circumferential surface of the reciprocating lead screw 5. A lead screw sleeve is fixedly sleeved on the screw block 502, and a pin hole is provided on the inner circumferential surface of the lead screw sleeve along its radial direction. A crescent pin that cooperates with the reciprocating lead screw 5 is provided in the pin hole. A guide hole 503 is provided on one side of the screw block 502, and the guide hole 503 can limit the measurement line.
[0027] In this utility model, a round rod 501 is fixedly connected between the two connecting plates 4 on the side near the baffle 3, and the round rod 501 slides through the screw block 502. The screw block 502 has a round hole that matches the round rod 501. The top of the reciprocating screw 5 passes through the connecting plate 4 and is fixedly connected to the second synchronous wheel 504, and the top connecting plate 4 has a round hole that matches the reciprocating screw 5.
[0028] In this utility model, a first synchronous wheel 403 is fixedly connected to the top of the take-up roller 402 through the connecting plate 4, and the same synchronous belt 404 is sleeved between the first synchronous wheel 403 and the second synchronous wheel 504. Through the arrangement of the second synchronous wheel 504, the synchronous belt 404 and the first synchronous wheel 403, the take-up roller 402 will drive the screw block 502 to move up and down when it rotates, so that the measuring line can be evenly wound in the take-up roller 402.
[0029] In this invention, a measuring line is fixedly connected to the winding roller 402, and the other end of the measuring line passes through the screw block 502, the strip hole 301 and the through hole 206 respectively.
[0030] Working principle: The device is equipped with a level on top. During use, the level ensures the device is placed vertically and horizontally. When adjusting the height of the measuring line, pressing the two push plates 212 brings the two T-shaped inserts 210 closer together, separating them from the insertion holes 102. The U-shaped frame 201 can then be moved up and down. When the appropriate height is reached, the push plates 212 are released, allowing the T-shaped inserts 210 to be inserted into the corresponding insertion holes 102. The guide rollers 203 keep the measuring line between the two guide rollers, preventing significant wear on the measuring line. Because the direction of the through hole 206 is synchronized with the first laser head 207, precise line pulling measurement is possible. The second laser head 208 and the perforation 206 are located on the same horizontal line. When the wire release block 205 rotates with the measuring wire, the laser of the second laser head 208 illuminates the scale 209. The elevation angle of the measuring wire can be determined by the reading on the scale 209, thus improving the accuracy of the measurement. The rotation of the motor 401 enables the rapid winding of the measuring wire. At the same time, under the action of the first synchronous pulley 403, the second synchronous pulley 504, and the reciprocating screw 5, when the winding roller 402 releases or winds up, the screw block 502 will move up and down along the strip hole 301 with the measuring wire, so that the measuring wire can be evenly distributed on the winding roller 402 when winding up, thus improving the practicality of the device.
[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A stringing device for building surveying, comprising a housing (1), characterized in that, The outer shell (1) has a through hole at one end. Vertical holes (101) and insertion holes (102) are provided on both sides of the end of the outer shell (1) near the through hole. A common adjustment mechanism (2) is provided between the two insertion holes (102). The adjustment mechanism (2) includes a U-shaped frame (201) slidably connected to the inside of the through hole. T-shaped blocks (202) are fixedly connected to both sides of the outer wall of the U-shaped frame (201), and each T-shaped block (202) is slidably connected to the adjacent vertical holes (101). Two guide rollers (203) are rotatably connected between the two U-shaped frames (201) near the inside of the outer shell (1). 201) Rotating rods (204) are rotatably connected between the two sides of the end away from the outer shell (1). The same wire feeding block (205) is fixedly connected between the two rotating rods (204). A through hole (206) is opened in the middle of the wire feeding block (205). A first laser head (207) is provided on the side of the wire feeding block (205) away from the outer shell (1). A scale (209) is fixedly connected to the inner side of the U-shaped frame (201) near the rotating rod (204). The scale (209) is coaxial with the rotating rod (204). A second laser head (208) is provided on the side of the wire feeding block (205) near the scale (209).
2. The string-pull device for building surveying according to claim 1, characterized in that, The adjustment mechanism (2) also includes sliding holes on both sides of the top of the U-shaped frame (201). T-shaped inserts (210) are slidably connected in both sliding holes, and each T-shaped insert (210) is adapted to the adjacent insert (102). The same slide rod (211) is fixedly connected between the two ends of each sliding hole, and each slide rod (211) slides through the bottom of the adjacent T-shaped insert (210). The bottom of both T-shaped inserts (210) is provided with a round hole adapted to the slide rod (211). Push plates (212) are fixedly connected on the adjacent side of the two T-shaped inserts (210), and the same spring (213) is fixedly connected between the two push plates (212).
3. The string-pull device for building surveying according to claim 1, characterized in that, A baffle (3) is fixedly connected to the inner wall of the outer shell (1) near the adjustment mechanism (2), and a strip hole (301) is opened in the middle of the baffle (3). A connecting plate (4) is fixedly connected to the side of the baffle (3) away from the adjustment mechanism (2) near the top and bottom. The other end of the two connecting plates (4) is fixedly connected to one side of the inner wall of the outer shell (1). The same take-up roller (402) is rotatably connected between the two connecting plates (4) away from the baffle (3). A motor (401) is fixedly connected to the bottom of the connecting plate (4), and the output end of the motor (401) passes through the connecting plate (4) and is fixedly connected to one end of the take-up roller (402).
4. A string-pull device for building surveying according to claim 3, characterized in that, A reciprocating screw (5) is rotatably connected between the two connecting plates (4) near the end of the baffle (3), and a screw block (502) is screwed onto the circumferential surface of the reciprocating screw (5). A screw sleeve is fixedly sleeved on the screw block (502), and a pin hole is provided on the inner circumferential surface of the screw sleeve along its radial direction. A crescent pin that cooperates with the reciprocating screw (5) is provided in the pin hole. A guide hole (503) is provided on one side of the screw block (502).
5. A string-operated device for building surveying according to claim 4, characterized in that, A round rod (501) is fixedly connected between the two connecting plates (4) on the side near the baffle (3), and the round rod (501) slides through the screw block (502). The screw block (502) has a round hole that matches the round rod (501). The top of the reciprocating screw (5) passes through the connecting plate (4) and is fixedly connected to the second synchronous wheel (504). The top connecting plate (4) has a round hole that matches the reciprocating screw (5).
6. A string-pull device for building surveying according to claim 3, characterized in that, The top of the take-up roller (402) is fixedly connected to the connecting plate (4), and the first synchronous pulley (403) and the second synchronous pulley (504) are fitted with the same synchronous belt (404).
7. A string-pull device for building surveying according to claim 3, characterized in that, A measuring line is fixedly connected to the take-up roller (402), and the other end of the measuring line passes through the screw block (502), the strip hole (301), and the through hole (206) respectively.