Portable set square
By designing the three sides of the set square to be detachably connected, the problem of the set square being inconvenient to carry is solved, achieving a portable design that is easy to carry and store.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-04-03
AI Technical Summary
The set squares used in current engineering surveying are large and inconvenient to carry.
The three sides of the triangle are designed to be detachably connected, and a portable design is achieved through inserts, fixing components, connecting components and magnetic attachments.
The footprint of the set square has been reduced, making it easier to carry and store.
Smart Images

Figure CN224075337U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of set square technology, and more specifically, to a portable set square. Background Technology
[0002] A set square is a drawing tool with three angles and three sides. It is usually composed of two special right triangles. Each angle of a set square is a standard geometric angle, and the sides are all straight. It can be used to draw straight lines and angles.
[0003] However, due to the special shape of the set square, especially some set squares used in engineering surveying, which are large in size, and need to be taken out frequently, there is considerable inconvenience when carrying them out.
[0004] Therefore, a solution needs to be proposed to address this problem. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a portable set square. By splitting the three sides of the set square and setting the first and second mounting rods to be detachably connected to the fixed ruler rod, the footprint of the set square is reduced when it is moved, making it convenient to carry and store the set square.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a portable set square, comprising a set square body, the set square body comprising a fixed ruler rod, a mounting rod one, and a mounting rod two, the surfaces of the fixed ruler rod, the mounting rod one, and the mounting rod two are all provided with scale lines, the mounting rod one and the mounting rod two are detachably connected to the fixed ruler rod, the ends of the mounting rod one and the mounting rod two near the fixed ruler rod are all fixedly connected with inserts, both ends of the fixed ruler rod are provided with slots for inserting the inserts on both sides, the slots are provided with fixing components for fixing the inserts, a connecting component is provided between the mounting rod one and the mounting rod two, the connecting component is provided at the ends of the mounting rod one and the mounting rod two away from the fixed ruler rod.
[0007] The present invention is further configured such that: the fixing component includes a lead screw with one end rotatably connected to the inner wall of the slot, the inner wall of the slot is provided with a through hole communicating with the outside, the other end of the lead screw extends out of the through hole and is fixedly connected to a knob, a nut seat is sleeved on the lead screw, and a pressure block for pressing the insert is fixedly connected to the side wall of the nut seat.
[0008] The present invention is further configured such that: both ends of the fixed ruler are fixedly connected to limit blocks; when the insert is inserted into the slot, when the first mounting rod and the second mounting rod respectively abut against the limit blocks on both sides, the side wall of the insert is flush with the slot opening.
[0009] The present invention is further configured such that: the connecting assembly includes a connecting rod rotatably connected to the side wall of the first mounting rod; the end of the connecting rod away from the first mounting rod has two symmetrically distributed grooves; an elastic element is provided on the inner wall of the groove, one end of which is fixedly connected; a locking block is fixedly connected to the other end of the elastic element; the upper end face of the second mounting rod has a connecting groove for the connecting rod to be inserted; and a locking groove for the locking block to be engaged is provided on the inner wall of the connecting groove.
[0010] The present invention is further configured such that a buckle is fixedly connected to the end of the connecting rod that moves away from the mounting rod.
[0011] The present invention is further configured such that the lower end face of the pressure block is provided with a plurality of arrayed recessed segments.
[0012] The present invention is further configured such that: a receiving groove is provided at the end of the mounting rod one away from the fixed ruler rod, and a magnetic attracting component one is fixedly connected in the receiving groove one; a receiving groove two is provided at the end of the mounting rod two away from the fixed ruler rod, and a magnetic attracting component two that attracts the magnetic attracting component one is fixedly connected in the receiving groove two.
[0013] In summary, this utility model has the following beneficial effects:
[0014] This invention separates the three sides of the set square and sets the first and second mounting rods to be detachably connected to the fixed ruler rod, thereby reducing the footprint of the set square when it is moved and making it convenient to carry and store. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 This shows the structural features of the set square body after installation;
[0016] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 This shows the structural features of the triangle ruler body when it is disassembled;
[0017] Figure 3 This is a schematic diagram of the fixing component in this utility model, showing the structural features of the fixing component;
[0018] Figure 4 for Figure 1 An enlarged schematic diagram of part A shows the structural features of the connecting components.
[0019] In the diagram: 1. Fixed ruler rod; 2. Mounting rod one; 3. Mounting rod two; 4. Insert; 5. Slot; 6. Lead screw; 7. Nut seat; 8. Knob; 9. Pressure block; 10. Limiting block; 11. Connecting rod; 12. Groove; 13. Elastic element; 14. Locking block; 15. Locking groove; 16. Buckle rod; 17. Magnetic component one; 18. Magnetic component two; 19. Connecting groove. Detailed Implementation
[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.
[0021] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "set up / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] The present invention will now be described in detail with reference to the accompanying drawings.
[0024] A portable set square, such as Figures 1-4 As shown, the triangle includes a set square body, which includes a fixed ruler 1, a mounting rod 1 2, and a mounting rod 2 3. The surfaces of the fixed ruler 1, the mounting rod 1 2, and the mounting rod 2 3 are all provided with scale lines. The mounting rod 1 2 and the mounting rod 2 3 are detachably connected to the fixed ruler 1.
[0025] Mounting rod 1 (2) and mounting rod 2 (3) are both fixedly connected to one end of the fixed ruler rod 1 with inserts 4. Both ends of the fixed ruler rod 1 are provided with slots 5 for inserts 4 to be inserted. The slots 5 are provided with fixing components for fixing inserts 4. The fixing components include a screw 6 with one end rotatably connected to the inner wall of the slot 5. The inner wall of the slot 5 is provided with a through hole that communicates with the outside. The other end of the screw 6 extends out of the through hole and is fixedly connected to a knob 8. A nut seat 7 is fitted on the screw 6. A pressure block 9 for pressing the inserts 4 is fixedly connected to the side wall of the nut seat 7. The lower end face of the pressure block 9 is provided with several arrayed recessed sections, which are arranged to form an anti-slip texture.
[0026] Both ends of the fixed ruler rod 1 are fixedly connected to limit blocks 10. When the insert 4 is inserted into the slot 5, when the first mounting rod 2 and the second mounting rod 3 abut against the limit blocks 10 on both sides, the side wall of the insert 4 is flush with the groove of the slot 5, so that the edge of the triangle ruler body can still remain flat when in use.
[0027] A connecting assembly is provided between mounting rod 1 (2) and mounting rod 2 (3). The connecting assembly is located at the end of mounting rod 1 (2) and mounting rod 2 (3) away from the fixed ruler rod 1. The connecting assembly includes a connecting rod 11 that is rotatably connected to the side wall of mounting rod 1 (2). The end of the connecting rod 11 away from mounting rod 1 (2) has two symmetrically distributed grooves 12. An elastic element 13 is provided on the inner wall of the groove 12, with one end fixedly connected to it. The other end of the elastic element 13 is fixedly connected to a locking block 14. The elastic element 13 is a spring. The locking block 14 is hemispherical, with the arc surface of the hemispherical block 14 facing the groove opening of the groove 12. The upper end face of mounting rod 2 (3) has a connecting groove 19 for the connecting rod 11 to be inserted. The inner wall of the connecting groove 19 has a locking groove 15 for the locking block 14 to be engaged. The end of the connecting rod 11 away from the mounting rod is fixedly connected to a latching rod 16.
[0028] The mounting rod 2 has a receiving groove 1 at the end away from the fixed ruler rod 1, and a magnetic suction component 17 is fixedly connected in the receiving groove 1. The mounting rod 3 has a receiving groove 2 at the end away from the fixed ruler rod 1, and a magnetic suction component 2 18 that attracts magnetic suction component 17 is fixedly connected in the receiving groove 2.
[0029] Working principle: When assembling the fixed ruler 1, mounting rod 1, and mounting rod 2 to form a complete set square, insert the inserts 4 on mounting rod 1 and mounting rod 2 into the slot 5 until the side walls of mounting rod 1 and mounting rod 2 abut against the limiting block 10. At this time, the inserts 4 are located between the pressure block 9 and the inner wall of the slot 5. Then, hold the knob 8 on the surface of the fixed ruler 1 and rotate it, which drives the lead screw 6 to rotate. Through the nut seat 7, the pressure block 9 moves closer to the inserts 4 until the pressure block 9 presses the inserts 4 tightly against the inner wall of the slot 5, thus fixing the inserts 4. This achieves the connection between mounting rod 1 and mounting rod 2 and the fixed ruler 1. At this time, mounting rod 1 and mounting rod 2 are away from the fixed ruler 1. The ends can fit together, and magnetic component 17 will be attracted together with magnetic component 2. Then, hold the connecting rod 11 and rotate it so that the end of the connecting rod 11 away from the mounting rod 2 is rotated and inserted into the connecting groove 19. During this process, the locking block 14 will be squeezed and contracted into the groove 12 by the inner wall of the connecting groove 19. When the connecting rod 11 is inserted into the connecting groove 19, the position of the groove 12 will correspond to the position of the locking slot 15. At this time, the locking block 14 can be driven by the rebound force of the elastic component 13 and locked into the locking slot 15, making the connection between the mounting rod 2 and the mounting rod 3 more stable, completing the complete installation of the triangle ruler body. At this time, the triangle ruler body can be used normally. The operation is convenient and no external tools are needed during the installation process.
[0030] When it is necessary to carry, transfer or store the triangle ruler body, first use the latch 16 to pry out the connecting rod 11, so that the locking block 14 is squeezed and retracted into the groove 12 by the inner wall of the locking groove 15, separating the connecting rod 11 from the mounting rod 2 3. Then, hold the knob 8 and rotate it in the opposite direction. Through the screw 6 and the nut seat 7, the pressure block 9 is moved away from the insert 4, and the fixed insert 4 is released. The insert 4 can then be pulled out from the slot 5, so that the mounting rod 1 2 and mounting rod 2 3 on both sides are separated from the fixed ruler rod 1. The magnetic attachment 1 17 and magnetic attachment 2 18 can be separated directly, completing the disassembly of the triangle ruler body, which is divided into three long strips, making it convenient to carry and store the triangle ruler.
[0031] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A portable set square, comprising a set square body, characterized in that: The set square body includes a fixed ruler rod, a first mounting rod, and a second mounting rod. The surfaces of the fixed ruler rod, the first mounting rod, and the second mounting rod are all provided with graduation lines. The first mounting rod and the second mounting rod are detachably connected to the fixed ruler rod. Insert pieces are fixedly connected to the ends of the first mounting rod and the second mounting rod near the fixed ruler rod. Both ends of the fixed ruler rod are provided with slots for inserting the insert pieces. Fixing components for fixing the insert pieces are provided in the slots. A connecting component is provided between the first mounting rod and the second mounting rod, located at the ends of the first mounting rod and the second mounting rod furthest from the fixed ruler rod.
2. A portable set square according to claim 1, characterized in that: The fixing component includes a lead screw with one end rotatably connected to the inner wall of the slot, a through hole communicating with the outside on the inner wall of the slot, the other end of the lead screw extending out of the through hole and fixedly connected to a knob, a nut seat being fitted on the lead screw, and a pressure block for pressing the insert being fixedly connected to the side wall of the nut seat.
3. A portable set square according to claim 1, characterized in that: Both ends of the fixed ruler are fixedly connected to limit blocks. When the insert is inserted into the slot, the first mounting rod and the second mounting rod abut against the limit blocks on both sides, and the side wall of the insert is flush with the slot opening.
4. A portable set square according to claim 1, characterized in that: The connecting assembly includes a connecting rod that is rotatably connected to the side wall of the first mounting rod. The end of the connecting rod away from the first mounting rod has two symmetrically distributed grooves. An elastic element is provided on the inner wall of the groove, with one end fixedly connected to it. A locking block is fixedly connected to the other end of the elastic element. The upper end face of the second mounting rod has a connecting groove for the connecting rod to be inserted. The inner wall of the connecting groove has a locking slot for the locking block to be engaged.
5. A portable set square according to claim 4, characterized in that: The end of the connecting rod that moves away from the mounting rod is fixedly connected to a buckle.
6. A portable set square according to claim 2, characterized in that: The lower end face of the pressure block is provided with several arrayed recessed sections.
7. A portable set square according to claim 1, characterized in that: The mounting rod 1 has a receiving groove 1 at the end away from the fixed ruler rod, and a magnetic suction component 1 is fixedly connected in the receiving groove 1. The mounting rod 2 has a receiving groove 2 at the end away from the fixed ruler rod, and a magnetic suction component 2 that attracts the magnetic suction component 1 is fixedly connected in the receiving groove 2.