A compass

Abstract

The utility model relates to the field of compasses, provide a compass, including compass head, be located in the needle foot and lead foot of compass head, the cavity is formed in the hollow inside lead foot, the installation mouth that lead foot is equipped with the cavity is led through, the installation mouth is detachably equipped with the cover, the pen core mechanism is detachably installed in the cavity, the pen core mechanism is the press type pen core, the pen core mechanism is equipped with the pressing portion, the sliding portion is equipped with the outer wall of lead foot, the pressing portion can be connected in the sliding portion, the sliding portion can push the pressing portion and do the pressing action, the pen core mouth is equipped at the lower extreme of lead foot, and the pen core of pen core mechanism can extend the pen core mouth. The cover and lead foot realizes the quick dismounting of exempting from the tool through the second buckle, when the pen core mechanism is damaged, can also carry out maintenance or replacement alone, improve the service life of compass, solve the technical problem that the compass pen core is inconvenient to dismount and maintain.

Description

Technical Field

[0001] This utility model relates to the field of compasses, and more particularly to a compass. Background Technology

[0002] Traditional compasses typically use a closed, cast-iron structure for the lead feet, with the lead completely encased in the metal casing after installation. When the lead runs out or needs to be replaced with a lead of different hardness (such as HB and 2B), the lead may break and block the lead outlet. The lead feet and compass head are often integrated, making lead replacement inconvenient. When the lead is damaged, it cannot be maintained separately, rendering the entire compass unusable; the lead also cannot be removed for temporary use. Summary of the Invention

[0003] Therefore, to address the aforementioned problems, this utility model proposes a compass. It solves the technical problem of inconvenient disassembly and maintenance of the compass lead.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A compass includes a compass head, needles and lead feet on the compass head. The lead feet are hollow to form a cavity. The lead feet have an installation port that communicates with the cavity. The installation port is detachably covered. A pen refill mechanism is detachably installed in the cavity. The pen refill mechanism is a press-type pen refill. The pen refill mechanism has a pressing part. The outer wall of the lead feet has a sliding part. The pressing part can be connected to the sliding part. The sliding part can push the pressing part to perform a pressing action. The lower end of the lead feet has a pen refill opening. The pen refill mechanism can extend out of the pen refill opening.

[0005] Further: The lead foot includes a first housing that can rotate on the compass head and a second housing that can be detached from the first housing. The cavity, mounting port, and sliding part are located in the second housing. The lead mechanism is located inside the second housing. The lead mechanism and the second housing together form a lead-out pen.

[0006] The first housing and the second housing are connected and fixed by at least one pair of first snaps and first holes.

[0007] The first housing includes a rotating part rotatably connected to a compass head, two side plates connected to the rotating part, and a connecting plate connected to the side plates, wherein a mounting groove is formed between the connecting plate and the two side plates.

[0008] The first card hole is located on the connecting plate, and the first buckle is located on the second housing.

[0009] The two side plates have fixing holes at their lower ends, and the second housing has protrusions corresponding to the fixing holes.

[0010] The cover and the mounting port are detachably connected via a second snap fastener.

[0011] The second buckle is located on the cover, and the lead foot is provided with a second buckle hole corresponding to the second buckle.

[0012] The needle is provided at the bottom of the needle foot, and a needle guard is rotatably provided on the needle foot. When not in use, the needle guard can be rotated downward so that the needle is located inside the needle guard.

[0013] The pin has an arc-shaped structure, and a groove is formed inside the pin. When in use, the pin guard can rotate up and down to be located inside the pin.

[0014] By adopting the aforementioned technical solution, the beneficial effects of this utility model are: The cover and lead feet of this utility model are designed to be quickly disassembled without tools via a second buckle. The first and second housings adopt a double locking structure of buckle-hole and fixing hole-protrusion, which ensures structural stability and facilitates disassembly. The lead mechanism is located inside the second housing, which has a good dustproof function. The lead mechanism, the second housing, and the lead mechanism can be used as temporary pens by themselves. The lead can be dispensing by pushing the external sliding part. The lead feet have a detachable press-type lead mechanism inside, which can be used independently as a temporary pen in conjunction with the second housing. This not only allows for emergency drawing when the lead is exhausted, but also allows for operation as a standard press-type pen completely detached from the compass body, greatly improving the tool's versatility. When the lead mechanism and the second housing are damaged, they can be maintained or replaced separately, extending the compass's service life. The feet have a built-in rotatable needle guard to prevent damage or deformation of the needle when not in use, and also to prevent the needle from accidentally injuring the user. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the compass of this utility model.

[0016] Figure 2 This is a structural diagram of a compass from another angle.

[0017] Figure 3 This is a partial structural diagram of a compass.

[0018] Figure 4 This is a schematic diagram of the second shell structure.

[0019] Figure 5 This is an exploded view of the second shell and core mechanism.

[0020] Figure 6 This is a structural diagram of the core mechanism and the sliding part.

[0021] Figure 7 This is a schematic diagram of the structure of a compass when it is not in use.

[0022] Figure 8 This is a partial structural diagram of a compass when it is not in use.

[0023] Figure label: 1. Compass head; 2. Needle foot; 21. Needle tip; 320. Cavity; 23. Needle guard; 3. Lead foot; 31. First housing; 311. Rotating part; 312. Side plate; 3120. Fixing hole; 313. Connecting plate; 3130. First locking hole; 314. Mounting groove; 32. Second housing; 22. Groove; 321. Mounting port; 322. Cover; 323. Sliding part; 324. Pen tip opening; 325. First buckle; 326. Protrusion; 327. Second buckle; 328. Second locking hole; 4. Pen tip mechanism; 40. Pressing part. Detailed Implementation

[0024] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0025] refer to Figures 1 to 8 This embodiment provides a compass, including a compass head 1, a needle 2 and a lead foot 3 disposed on the compass head 1. The lead foot 3 is hollow to form a cavity 320. The lead foot 3 is provided with an installation port 321 that communicates with the cavity 320. The installation port 321 is detachably provided with a cover 322. A pen refill mechanism 4 is detachably installed in the cavity 320. The pen refill mechanism 4 is a press-type pen refill. The pen refill mechanism 4 is provided with a pressing part 40. The outer wall of the lead foot 3 is provided with a sliding part 323. The pressing part 40 can be connected to the sliding part 323. The sliding part 323 can push the pressing part 40 to perform a pressing action. The lower end of the lead foot 3 is provided with a pen refill opening 324. The pen refill of the pen refill mechanism 4 can extend out of the pen refill opening 324.

[0026] In one embodiment, the lead foot 3 includes a first housing 31 rotatable to the compass head 1 and a second housing 32 detachable from the first housing 31. A cavity 320, a mounting port 321, and a sliding part 323 are located in the second housing 32. A pen refill mechanism 4 is disposed in the second housing 32. The pen refill mechanism 4 and the second housing 32 together form a refill pen.

[0027] The aforementioned lead foot 3 may also be without the structure of the first housing 31 and the second housing 32, that is, the second housing 32 and the first housing 31 are integrally formed housings that cannot be disassembled, or it may be other structures of the lead foot 3, depending on the specific situation.

[0028] In one embodiment, the first housing 31 includes a rotating part 311 rotatably connected to the compass head 1, two side plates 312 connected to the rotating part 311, and a connecting plate 313 connected to the side plates 312, with a mounting groove 314 formed between the connecting plate 313 and the two side plates 312.

[0029] The first housing 31 mentioned above can also be a cylindrical structure with the opening facing downwards or other structures, depending on the specific circumstances.

[0030] In one embodiment, the first housing 31 and the second housing 32 are connected and fixed by a first buckle 325 and a first snap hole 3130.

[0031] The first housing 31 and the second housing 32 mentioned above can also be fixed by bolts or other means, depending on the specific circumstances.

[0032] In one embodiment, a first card hole 3130 is provided on a connecting plate 313, and a first buckle 325 is provided on a second housing 32.

[0033] The first buckle 325 mentioned above can also be set on the connecting plate 313, and the first buckle hole 3130 is set on the second housing 32.

[0034] The number of the first card hole 3130 and the second buckle 327 mentioned above can be one, two or even more, depending on the specific situation.

[0035] In one embodiment, the lower ends of the two side plates 312 are provided with fixing holes 3120, and the second housing 32 is provided with protrusions 326 corresponding to the fixing holes 3120.

[0036] The aforementioned fixing hole 3120 can also be set in the middle of the side, depending on the specific situation.

[0037] In one embodiment, the cover 322 and the mounting port 321 are detachably connected by a second snap-fit ​​327.

[0038] The aforementioned second clip 327 is a known component, and can also be fixed by screws or other fixing components, which are also known components, and will not be described in detail here.

[0039] In one embodiment, the second buckle 327 is located on the cover 322, and the lead foot 3 is provided with a second buckle hole 328 corresponding to the second buckle 327.

[0040] The aforementioned second buckle 327 can also be set on the lead foot 3, depending on the specific situation.

[0041] In one embodiment, the bottom of the needle foot 2 is provided with a needle tip 21, and a needle guard 23 is rotatably provided on the needle foot 2. When not in use, the needle guard 23 can be rotated downward so that the needle tip 21 is located inside the needle guard 23.

[0042] In one embodiment, the pin 2 has an arc-shaped structure, and a groove 22 is formed inside the pin 2. In use, the pin guard 23 can rotate up and down and is located inside the pin 2.

[0043] The aforementioned pin 2 can also be configured in other shapes, depending on the specific circumstances.

[0044] The aforementioned pen refill mechanism 4 can adopt the structure of an automatic pen or other pens, with the top pressing part being a pressing part 40, or another pressing part 40 can be provided at the top pressing part, depending on the specific situation.

[0045] The method of using this utility model is as follows: When disassembling the compass, the second housing 32 can be removed by pressing the first latch 325. The second housing 32 and the lead mechanism 4 can be used as a temporary pencil. The cover 322 can be removed by pressing the second latch 327, thereby removing the lead mechanism 4 from the second housing 32. The lead mechanism 4 can also be used alone as a temporary pencil for emergency use. If the lead mechanism 4 or the second housing 32 is damaged, it can be maintained or replaced separately to improve the service life of the compass. The foot has a built-in rotatable needle guard 23 to prevent the needle 21 from being damaged or deformed when not in use, and also to prevent the needle 21 from accidentally injuring the user.

[0046] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A compass, characterized in that: The device includes a compass head, needles and lead feet on the compass head. The lead feet are hollow to form a cavity. The lead feet have an installation port that connects to the cavity. The installation port is detachably covered. A pen refill mechanism is detachably installed in the cavity. The pen refill mechanism is a press-type pen refill. The pen refill mechanism has a pressing part. The outer wall of the lead feet has a sliding part. The pressing part can be connected to the sliding part. The sliding part can push the pressing part to perform a pressing action. The lower end of the lead feet has a pen refill opening. The pen refill of the pen refill mechanism can extend out of the pen refill opening.

2. A compass according to claim 1, characterized in that: The lead foot includes a first housing that can rotate on the compass head and a second housing that can be detached from the first housing. The cavity, mounting port, and sliding part are located in the second housing. The lead mechanism is located inside the second housing. The lead mechanism and the second housing together form a lead-out pen.

3. A compass according to claim 2, characterized in that: The first housing and the second housing are connected and fixed by at least one pair of first snaps and first holes.

4. A compass according to claim 3, characterized in that: The first housing includes a rotating part rotatably connected to a compass head, two side plates connected to the rotating part, and a connecting plate connected to the side plates, wherein a mounting groove is formed between the connecting plate and the two side plates.

5. A compass according to claim 4, characterized in that: The first card hole is located on the connecting plate, and the first buckle is located on the second housing.

6. A compass according to claim 5, characterized in that: The two side plates have fixing holes at their lower ends, and the second housing has protrusions corresponding to the fixing holes.

7. A compass according to claim 1, characterized in that: The cover and the mounting port are detachably connected via a second snap fastener.

8. A compass according to claim 7, characterized in that: The second buckle is located on the cover, and the lead foot is provided with a second buckle hole corresponding to the second buckle.

9. A compass according to claim 1, characterized in that: The needle is provided at the bottom of the needle foot, and a needle guard is rotatably provided on the needle foot. When not in use, the needle guard can be rotated downward so that the needle is located inside the needle guard.

10. A compass according to claim 9, characterized in that: The pin has an arc-shaped structure, and a groove is formed inside the pin. When in use, the pin guard can rotate up and down to be located inside the pin.

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