Easy-to-carry gradienter for engineering surveying and mapping
By designing an openable or closable housing and positioning mechanism on the level, the problem of damage during transport is solved, achieving both portability and stable measurement.
Patent Information
- Application Number
- CN202520735773.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-17
AI Technical Summary
Existing engineering surveying levels need to be packed in a case during transport, which is cumbersome and makes them prone to damage from collisions with other objects.
A level was designed with a housing and a positioning mechanism. The housing can be opened or closed by a moving component, the positioning mechanism is used to position the housing to prevent collisions, and the instrument is protected by anti-collision cotton.
This improves the portability and stability of the level, prevents damage, and ensures that the measurement process is undisturbed.
Smart Images

Figure CN223940282U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engineering surveying technology, specifically a portable level for engineering surveying. Background Technology
[0002] Engineering surveying studies the theories, techniques, and methods of measurement work in all stages of engineering construction, including design, construction, and management. It provides accurate measurement data and large-scale maps for engineering construction, ensuring reasonable site selection, construction according to design, and effective management. During the operation phase, it conducts deformation observation and settlement monitoring to ensure normal operation of the project. Surveying instruments include: 3D laser scanners, levels, theodolites, total stations, GPS receivers, handheld GPS devices, superstations, gyroscopes, planimeters, steel tape measures, stopwatches, etc. Nowadays, in photogrammetry, cameras have also become instruments used in surveying.
[0003] Before construction, a level is needed to obtain site data to facilitate the design and modification of the construction plan and ensure the smooth implementation of the project. A search revealed Chinese patent authorization number 202322906356.9, which discloses a level for engineering surveying. This level includes a support plate with hydraulic cylinders circumferentially connected to its upper end. A connecting plate is connected to the upper end of each hydraulic cylinder, and a housing is connected to the middle of the upper end of the connecting plate. This engineering surveying level, through the interaction of the housing, connecting rod, first gear, second gear, rotating rod, and sleeve, allows for easy adjustment of the angle between the sleeve and the frame, enabling rapid adjustment of the level's angle. This facilitates easy movement of the level to a suitable position, increasing its operability and practicality. Furthermore, through the interaction of the frame, threaded rod, slider, moving plate, and support block, the position of the moving plate and support block can be translated, allowing for adjustment of the level's position, improving its practicality, ease of operation, and high stability.
[0004] The existing technical solutions mentioned above have the following drawbacks: In the process of using this level, it is mostly necessary to put the level in a case and carry it around, which is cumbersome. During the process of taking out and installing the level, it is easy for the level to collide with other objects, which can cause damage to the level and affect its normal operation. Utility Model Content
[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a portable level for engineering surveying, which has the advantage of being easy to carry and solves the problem that most levels need to be put in a case and carried around during use, which is cumbersome.
[0006] To achieve the above objectives, this utility model provides a portable engineering surveying level, comprising a level body, a level screw installed at the bottom of the level body, a base fixedly connected to the bottom of the level screw, and a housing on each side of the level body, the two housings being arranged in a split configuration outside the level body, the bottoms of the two housings being connected to the base via a movable component, and the two housings opening or closing relative to each other under the action of the movable component; the level also includes a positioning mechanism, the bottom of which is fixedly connected to the top of the level body, and the top of which penetrates into the interior of the housing when the housings are closed.
[0007] The preferred technical solution of this utility model is as follows: the moving component includes a toothed ring and two toothed plates symmetrically arranged on the front and rear sides of the toothed ring. The toothed ring is rotatably installed in the base, and the two toothed plates are slidably installed in the base and both mesh with the toothed ring. A connecting block is rotatably connected to one end of each toothed plate. The end of the connecting block away from the toothed plate extends through to the outer side of the base and is fixedly connected to the inner wall of the shell on the corresponding side.
[0008] The preferred technical solution of this utility model is as follows: The positioning mechanism includes a positioning frame and support blocks symmetrically arranged on both sides of the positioning frame. The bottom of the support blocks is fixedly connected to the top of the level body. The positioning frame is placed between the two support blocks. A pressing block and a locking block are fixedly connected to the top of the positioning frame. The locking block includes two locking pins and corresponding locking holes are provided on both sides of the housing. When the two sides of the housing are closed, the two locking pins of the locking block are respectively inserted into the corresponding locking holes on both sides of the housing, and the top of the pressing block extends through to the top of the housing.
[0009] The preferred technical solution of this utility model is as follows: a handle is provided on the top of the housing, and a second rotating shaft is fixedly connected to the bottom of both the front and back of the handle. A protrusion is sleeved on the surface of the second rotating shaft, and the bottom of the protrusion is fixedly connected to the top of the housing.
[0010] The preferred technical solution of this utility model is that the inner wall of the shell is fixedly connected with anti-collision cotton.
[0011] The preferred technical solution of this utility model is as follows: the base has a groove corresponding to the position of each toothed plate, one end of each groove is open in the length direction, and a connecting block is set at the end of each toothed plate near the opening of the groove; a slider is fixedly connected to the side of the toothed plate away from the toothed ring, and a sliding groove is opened on the inner wall of the base to cooperate with the slider. The toothed plate is slidably placed in the corresponding groove, and the slider on the toothed plate is slidably embedded in the corresponding sliding groove. When the slider slides along the sliding groove, the toothed plate slides along the groove, and the connecting block is always placed on the outside of the base during the sliding process.
[0012] The preferred technical solution of this utility model is as follows: each toothed plate is fixedly connected to a first rotating shaft near the end of the housing to which it is connected, and one end of the connecting block is sleeved on the surface of the first rotating shaft.
[0013] The preferred technical solution of this utility model is as follows: a spring piece is fixedly connected to the bottom of the positioning frame, and the bottom of the spring piece is fixedly connected to the top of the level body.
[0014] The preferred technical solution of this utility model is as follows: the positioning frame is fixedly connected to the front and rear sides with locking blocks, and two locking holes are opened on the top of each side of the housing; the pressing block is located in the middle of the positioning frame, and a pressing block through hole is provided at the docking part of the two side housings.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] This utility model features a housing on the outside of the main body of the level. When carrying the level, the housing protects the main body and positions itself using a positioning mechanism to prevent it from opening arbitrarily during movement. The housing also prevents other objects from colliding with the level, making it convenient for users to carry. When the main body of the level needs to be used, the housing can be moved and opened using a movable component to expose it, preventing the housing from obstructing the level measurement and facilitating the measurement of the required data.
[0017] This invention has the advantages of being easy to carry and improving the stability of the level. During carrying, it can prevent the level body from colliding with other objects and being damaged. During use, it can also prevent the casing from interfering with it. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This utility model Figure 1 Open the structure diagram;
[0020] Figure 3 This utility model Figure 2 Exploded view of the central base structure;
[0021] Figure 4 This utility model Figure 2 Exploded view of the central support block.
[0022] In the diagram: 1. Level; 2. Foot screw; 3. Base; 4. Housing; 5. Positioning mechanism; 501. Support block; 502. Positioning frame; 503. Press block; 504. Locking block; 6. Moving component; 601. Gear ring; 602. Gear plate; 603. Connecting block; 7. Locking hole; 8. Spring; 9. Anti-collision cotton; 10. Slider; 11. Slide groove; 12. Handle; 13. Protrusion; 14. Press block through hole. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] The embodiment provides a portable level for engineering surveying, such as Figures 1 to 4 As shown, the system includes a level body 1, a positioning mechanism 5, and a moving component 6. The level body 1 is a common laser level. A leveling screw 2 is installed at the bottom of the level body 1, and a base 3 is fixedly connected to the bottom of the leveling screw 2. Two housings 4 are provided on both sides of the level body 1. The two housings 4 are arranged in a split configuration outside the level body 1. The bottoms of the two housings 4 are connected to the base 3 via the moving component 6, and the two housings 4 can open or close relative to each other under the action of the moving component 6. The level also includes a positioning mechanism 5. The bottom of the positioning mechanism 5 is fixedly connected to the top of the level body 1, and the top of the positioning mechanism 5 extends into the interior of the housings 4 when they are closed. The positioning mechanism 5 allows for the positioning of the housings 4, preventing them from moving when not needed. The moving component 6 facilitates the relative movement of the housings 4 to open or close, preventing them from obstructing the level body 1 during measurement. The top of the housing 4 is provided with a handle 12. A second rotating shaft is fixedly connected to the bottom of both the front and back of the handle 12. A protrusion 3 is fitted onto the surface of the second rotating shaft, and the bottom of the protrusion 13 is fixedly connected to the top of the housing 4. Through the combined use of the handle 12 and the protrusion 13, the user can easily pull and carry the housing 4 and the level body 1, while preventing the level body 1 from slipping from the user's hand. Figure 2 As shown, the inner wall of the housing 4 is fixedly connected with anti-collision cotton 9. The anti-collision cotton 9 can prevent the level body 1 from contacting and colliding with the inner wall of the housing 4, and at the same time protect the level body 1.
[0025] In the embodiments, such as Figure 2 and Figure 3As shown, the moving component 6 includes a toothed ring 601 and two toothed plates 602 symmetrically arranged on the front and rear sides of the toothed ring 601. The toothed ring 601 is rotatably mounted in the base 3, and the two toothed plates 602 are slidably mounted in the base 3 and both mesh with the toothed ring 601. A connecting block 603 is rotatably connected to one end of each toothed plate 602. The end of the connecting block 603 away from the toothed plate 602 extends to the outer side of the base 3 and is fixedly connected to the inner wall of the housing 4 on the corresponding side. The base 3 has grooves corresponding to the positions of each toothed plate 602, with one end of each groove open along its length. A connecting block (603) is disposed at the end of each toothed plate 602 near the opening of the groove. A slider 10 is fixedly connected to the side of the toothed plate 602 away from the toothed ring 601. The inner wall of the base 3 has a groove 11 that cooperates with the slider 10. The toothed plate 602 slides in the corresponding groove, and the slider 10 on the toothed plate slides into the corresponding groove 11. When the slider 10 slides along the groove 11, the toothed plate 602 slides along the groove. During the sliding process, the connecting block 603 is always placed outside the base 3. Through the cooperation of the slider 10 and the groove 11, the desired position of the toothed plate 602 can be limited. A first rotating shaft is fixedly connected to the end of each toothed plate 602 near the end of the housing 4 to which it is connected. One end of the connecting block 603 is sleeved on the surface of the first rotating shaft.
[0026] In the embodiments, such as Figures 2 to 4 As shown, the positioning mechanism 5 includes a positioning frame 502 and support blocks 501 symmetrically arranged on both sides of the positioning frame 502. The bottom of the support blocks 501 is fixedly connected to the top of the level body 1. The positioning frame 502 is placed between the two support blocks 501. A pressing block 503 and a locking block 504 are fixedly connected to the top of the positioning frame 502. The locking block 504 includes two locking pins and corresponding locking holes 7 on both sides of the housing 4. When the two sides of the housing 4 are closed, the two locking pins of the locking block 504 are respectively inserted into the corresponding locking holes 7 on both sides of the housing 4, and the top of the pressing block 503 extends through to the top of the housing 4. A spring piece 8 is fixedly connected to the bottom of the positioning frame 502, and the bottom of the spring piece 8 is fixedly connected to the top of the level body 1. The positioning frame 502 is fixedly connected to both the front and rear sides with locking blocks 504, and two locking holes 7 are correspondingly opened on the top of each side of the housing 4; the push block 503 is located in the middle of the positioning frame 502, and push block through holes 14 are correspondingly provided at the joint of the two side housings 4. Through the cooperation of the locking blocks 504 and the locking holes 7, the position of the housing 4 can be positioned. The setting of the spring piece 8 can facilitate the reset of the positioning frame 502 and the locking blocks 504, and at the same time prevent the locking blocks 504 from moving when they do not need to move.
[0027] The working principle and usage process of this utility model are as follows: When in use, the user presses down on the button 503, which moves downward and drives the positioning frame 502 and the locking block 504 to move downward, causing the locking block 504 to disengage from the locking hole 7. Then, the user pulls the housing 4 outward, which moves the connecting block 603 and the toothed plate 602 outward. Through the rotation of the toothed ring 601, the toothed plate 602 and the housing 4 move outward simultaneously, causing the housing 4 to disengage from the level body 1. Then, the user pulls down on the housing 4, causing the housing 4 and the connecting block 603 to rotate outward around the first rotating axis. At this time, the level body 1 can be used to measure the project. When carrying, the operation is reversed to position the housing 4. Then, the user pulls up on the handle 12 to facilitate carrying and moving the level body 1.
[0028] In summary, this portable engineering surveying level uses a positioning mechanism to position the housing, protecting the level from collisions with other objects. This facilitates user movement of the level and allows for easy movement and opening of the housing, enabling convenient data measurement. It solves the problem that most levels require being stored in a case for transport, which is cumbersome and prone to collisions with other objects during handling and installation, leading to damage and disrupting normal operation.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A portable engineering surveying level, comprising a level body (1), wherein a level screw (2) is mounted on the bottom of the level body (1), and a base (3) is fixedly connected to the bottom of the level screw (2), characterized in that: The level body (1) is provided with housings (4) on both sides. The two housings (4) are arranged in a split shape outside the level body (1). The bottom of the two housings (4) is connected to the base (3) through a moving component (6). Under the action of the moving component (6), the two housings (4) open or close relative to each other. The level also includes a positioning mechanism (5). The bottom of the positioning mechanism (5) is fixedly connected to the top of the level body (1). The top of the positioning mechanism (5) penetrates into the interior of the housing (4) when the housings (4) are closed.
2. The portable level for engineering surveying according to claim 1, characterized in that: The moving component (6) includes a toothed ring (601) and two toothed plates (602) symmetrically arranged on the front and rear sides of the toothed ring (601). The toothed ring (601) is rotatably mounted in the base (3), and the two toothed plates (602) are slidably mounted in the base (3) and both mesh with the toothed ring (601). A connecting block (603) is rotatably connected to one end of each toothed plate (602). The end of the connecting block (603) away from the toothed plate (602) extends through to the outside of the base (3) and is fixedly connected to the inner wall of the shell (4) on the corresponding side.
3. A portable level for engineering surveying according to claim 1 or 2, characterized in that: The positioning mechanism (5) includes a positioning frame (502) and support blocks (501) symmetrically arranged on both sides of the positioning frame (502). The bottom of the support block (501) is fixedly connected to the top of the level body (1). The positioning frame (502) is placed between the two support blocks (501). A pressing block (503) and a locking block (504) are fixedly connected to the top of the positioning frame (502). The locking block (504) includes two locking pins and corresponding locking holes (7) are provided on the two side housings (4). When the two side housings (4) are closed, the two locking pins of the locking block (504) are respectively inserted into the corresponding locking holes (7) on the two side housings (4), and the top of the pressing block (503) extends through to the top of the housing (4).
4. A portable level for engineering surveying according to claim 1 or 2, characterized in that: The top of the housing (4) is provided with a handle (12), and the bottom of the front and back of the handle (12) are fixedly connected with a second rotating shaft. The surface of the second rotating shaft is fitted with a protrusion (13), and the bottom of the protrusion (13) is fixedly connected to the top of the housing (4).
5. A portable level for engineering surveying according to claim 1 or 2, characterized in that: The inner wall of the shell (4) is fixedly connected with anti-collision cotton (9).
6. A portable level for engineering surveying according to claim 2, characterized in that: The base (3) has a groove corresponding to the position of each toothed plate (602). One end of each groove is open in the length direction. A connecting block (603) is set at the end of each toothed plate (602) near the opening of the groove. A slider (10) is fixedly connected to the side of the toothed plate (602) away from the toothed ring (601). The inner wall of the base (3) has a groove (11) that cooperates with the slider (10). The toothed plate (602) slides in the corresponding groove. The slider (10) on the toothed plate slides into the corresponding groove (11). When the slider (10) slides along the groove (11), the toothed plate (602) slides along the groove. During the sliding process, the connecting block (603) is always placed outside the base (3).
7. A portable level for engineering surveying according to claim 2, characterized in that: Each toothed plate (602) is fixedly connected to a first rotating shaft near the end of the housing (4) to which it is connected, and one end of the connecting block (603) is sleeved on the surface of the first rotating shaft.
8. A portable level for engineering surveying according to claim 3, characterized in that: The bottom of the positioning frame (502) is fixedly connected to a spring piece (8), and the bottom of the spring piece (8) is fixedly connected to the top of the level body (1).
9. A portable level for engineering surveying according to claim 3, characterized in that: The positioning frame (502) is fixedly connected to the front and rear sides with locking blocks (504), and two locking holes (7) are opened on the top of each side housing (4); the pressing block (503) is located in the middle of the positioning frame (502), and a pressing block through hole (14) is provided at the docking part of the two side housings (4).
Citation Information
Patent Citations
Level meter for engineering surveying and mapping
CN221593856U