A balance pan structure

Abstract

The utility model discloses a balance scale disc structure belongs to the balance technical field. Including balance main part, scale disc, scale disc is connected on balance main part, scale disc is cylindrical, and is rotatably arranged with the bearing tray in scale disc, the inner wall of scale disc is seted up with the clamping slot, and the clamping rod of clamping into the clamping slot is fixedly connected on the bearing tray, the connecting groove for the clamping rod entering the clamping slot is seted up on scale disc, and the clamping rod is located at the position away from the connecting groove, and scale disc is connected with bearing tray through the rotatable separation of long strip's magnetic attraction subassembly. The utility model is through the rotary joint cooperation of clamping slot and clamping rod, and combines the magnetic force assistance of long strip magnetic attraction subassembly, realizes the firm and convenient detachable connection between bearing tray and scale disc, can satisfy the actual demand of user need in the state of the tray keeping placing safely, conveniently removes the balance.

Description

Technical Field

[0001] This utility model provides a balance pan structure, belonging to the field of balance technology. Background Technology

[0002] A balance is a measuring instrument used to accurately determine the mass of objects. Its core component is the weighing pan that holds the sample. In practical use, to protect the delicate surface of the weighing pan from contamination, corrosion, or wear, operators typically do not place the sample directly on the pan. Instead, they first place a dedicated tray—such as a watch glass or small container—onto the pan, using this tray as the medium for direct contact with the sample. This method is widely used in laboratories, pharmaceuticals, and precious metal processing, ensuring hygienic weighing and extending the lifespan of the balance itself.

[0003] However, the current "pan-tray" load-bearing mode has a significant limitation: during static weighing, the pan is stable enough to support the tray and the sample on it. But when the balance needs to be moved—for example, to adjust the layout in the laboratory or to transfer the entire balance to different workbenches—the connection between the tray and the pan, relying solely on simple gravity and friction, is significantly less stable. The tray is highly susceptible to sliding, tilting, or even falling off the pan during movement, which could not only lead to sample spillage and contamination but also pose a risk of the tray breaking or impacting the precision pan. Therefore, the existing structure cannot meet the user's practical need for safe and convenient movement of the balance while the tray remains in place, and a new pan structure is urgently needed to solve this connection stability problem. Utility Model Content

[0004] The technical problem this invention aims to solve is that the existing balance pan structure is inconvenient to meet the user's actual need to move the balance safely and conveniently while the pan is in place.

[0005] In order to solve the above problems, the technical solution proposed by this utility model is: a balance pan structure, including a weighing pan, which is connected to the balance;

[0006] The weighing pan is cylindrical, and a support tray is rotatably mounted inside the weighing pan; a slot is formed on the inner wall of the weighing pan, and a lever is fixedly connected to the support tray to engage with the slot; a connecting groove is formed on the weighing pan for the lever to enter the slot, and the lever is located away from the connecting groove; the weighing pan and the support tray are connected by a rotatable, elongated magnetic assembly.

[0007] Preferably, the magnetic attraction component includes a lower magnet and an upper magnet; the lower magnet is embedded and fixed to the bottom of the weighing pan, and the upper magnet, which attracts the lower magnet, is embedded and fixed to the bottom of the support tray.

[0008] Preferably, the lower magnet consists of two separate sets of elongated magnets, and the upper magnet is an elongated magnet corresponding to the lower magnet and capable of separating from the lower magnet when the carrying tray rotates.

[0009] Preferably, the slot is an arc-shaped slot, and the locking rod that can slide along the slot is in clearance fit with the slot; the locking rod is in a horizontal state, and the locking rod is parallel to and corresponds to the upper magnet.

[0010] Preferably, the supporting tray is frustum shaped, with its lower bottom surface located inside the weighing pan, and the diameter of its upper bottom surface being larger than the maximum diameter of the weighing pan.

[0011] The beneficial effects of this utility model are:

[0012] 1. By using a rotating locking mechanism between the slot and the lever, combined with the magnetic assistance of the elongated magnetic component, a stable and convenient detachable connection is achieved between the support tray and the weighing pan. When placing the support tray, simply align the lever with the connecting slot and insert it. Then, rotate it a certain angle, and the lever will slide into the slot track. The upper and lower elongated magnets will fully engage, generating a uniform and strong vertical attraction force, greatly enhancing the stability of the connection and resisting vibrations and inertial impacts generated during the movement of the balance. This ensures that even during transport, the support tray remains firmly fixed to the weighing pan, completely eliminating the safety hazards of tray slippage and tipping that are common in traditional methods.

[0013] 2. The support tray and the weighing pan are rotatably connected. When it is necessary to remove the support tray, simply rotate the support tray so that the locking rod is aligned with the connecting groove. At the same time, the two magnets will no longer be attracted to each other, and the support tray can be lifted up and removed from the weighing pan, achieving a quick removal effect. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention.

[0015] Figure 2 This is a cross-sectional view of the weighing pan of this utility model.

[0016] Figure 3 This is an exploded view of the connection of this utility model.

[0017] 1. Weighing pan; 2. Supporting tray; 3. Lower magnet; 4. Upper magnet; 5. Slot; 6. Connecting slot; 7. Locking rod. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] This utility model provides a balance pan structure: including a pan 1, which is connected to the balance;

[0020] As attached Figure 1 The weighing pan 1 is cylindrical, and a support tray 2 is rotatably installed inside the weighing pan 1. The support tray 2 is frustum shaped, with its lower bottom surface located inside the weighing pan 1, and the diameter of its upper bottom surface being larger than the maximum diameter of the weighing pan 1. This prevents items from falling into the weighing pan 1 when they escape from the support tray 2.

[0021] As attached Figure 2 , 3 The inner wall of the weighing pan 1 is provided with a slot 5, and a lever 7 that is fixedly connected to the bearing tray 2 is inserted into the slot 5. The weighing pan 1 is provided with a connecting groove 6 for the lever 7 to enter the slot 5, and the lever 7 is located away from the connecting groove 6. The slot 5 is an arc-shaped groove. The lever 7 enters the slot 5 from the connecting groove 6 and slides to the end of the slot 5 away from the connecting groove 6, which can greatly increase the stability of the connection between the lever 7 and the slot 5.

[0022] As attached Figure 2 , 3 The weighing pan 1 and the support tray 2 are connected by a rotatable, detachable, elongated magnetic assembly. The magnetic assembly includes a lower magnet 3 and an upper magnet 4. The lower magnet 3 is embedded and fixed to the bottom of the weighing pan 1, and the upper magnet 4, which is attracted to the lower magnet 3, is embedded and fixed to the bottom of the support tray 2. The lower magnet 3 consists of two separate sets of elongated magnets, and the upper magnet 4 is a corresponding elongated magnet that can separate from the lower magnet 3 when the support tray 2 rotates. Rotating the support tray 2 allows for easy control of the attraction state between the upper magnet 4 and the lower magnet 3. When the balance needs to be moved, keeping the two magnets engaged increases stability, while during normal use, the two magnets can be separated, facilitating the removal of the support tray 2. Simultaneously, the locking lever 7 is horizontal and parallel to the upper magnet 4. When the upper magnet 4 is separated from the lower magnet 3, the locking lever 7 is also positioned corresponding to the connecting groove 6, without affecting the removal of the support tray 2.

[0023] The principle of this utility model

[0024] The balance pan 1 structure described in this application is simple and efficient to operate in actual use. First, the support tray 2 is installed; as shown in the attached... Figure 3 The operator holds the support tray 2, aligning its bottom horizontally with the weighing pan 1, ensuring the locking lever 7 at the bottom of the support tray 2 is precisely aligned with the connecting groove 6 on the edge of the weighing pan 1. Then, the locking lever 7 is inserted vertically downwards into the connecting groove 6 until the bottom surface of the support tray 2 contacts the inner bottom surface of the weighing pan 1, at which point the upper magnet 4 and lower magnet 3 are perpendicular and separated. In this state, the object to be measured can be placed on the support tray 2 for normal use of the balance, as shown in the attached diagram. Figure 1 .

[0025] When the balance needs to be moved safely while the tray remains in place, the operator smoothly rotates the support tray 2, driving the locking lever 7 to slide along the arc-shaped groove 5 on the inner wall of the weighing pan 1. During rotation, the elongated upper magnet 4 at the bottom of the support tray 2 and the lower magnet 3 embedded at the bottom of the weighing pan 1 gradually approach each other and eventually reach maximum overlap. They automatically attract and lock together through strong magnetic attraction. Simultaneously, the locking lever 7 slides to the end of the arc-shaped groove 5, completing a dual locking mechanism of mechanical and magnetic force. At this point, the support tray 2 is firmly fixed, facilitating the movement of the entire balance body without causing the support tray 2 to separate from the weighing pan 1. (See attached diagram) Figure 2 .

[0026] Similarly, when it is necessary to remove the carrier tray 2, the disassembly process is equally intuitive and quick. The operator simply rotates the carrier tray 2 in the opposite direction, and the locking lever 7 slides back from the end of the locking groove 5 to the initial entry position of the connecting groove 6. During this rotation, the elongated upper and lower magnets 3 shift relative to each other as they rotate, gradually reducing the adsorption area until they are completely misaligned, the magnetic force rapidly weakens and disappears, and the connection is automatically released. Subsequently, the operator can easily lift the carrier tray 2 vertically upwards, allowing the locking lever 7 to exit from the connecting groove 6, thus completely separating the tray. The entire installation and disassembly process requires no tools, achieving a perfect balance between safety, stability, and quick disassembly.

[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A balance pan structure, comprising a weighing pan (1) connected to a balance; characterized in that: The weighing pan (1) is cylindrical, and a support tray (2) is rotatably mounted inside the weighing pan (1); a slot (5) is provided on the inner wall of the weighing pan (1), and a lever (7) is fixedly connected to the support tray (2) to be inserted into the slot (5); a connecting groove (6) is provided on the weighing pan (1) for the lever (7) to enter the slot (5), and the lever (7) is located away from the connecting groove (6); the weighing pan (1) and the support tray (2) are connected by a rotatable, detachable, elongated magnetic suction assembly.

2. The balance pan structure according to claim 1, characterized in that: The magnetic attraction assembly includes a lower magnet (3) and an upper magnet (4); the lower magnet (3) is embedded and fixed at the bottom of the weighing pan (1), and the upper magnet (4), which attracts the lower magnet (3), is embedded and fixed at the bottom of the carrying tray (2).

3. The balance pan structure according to claim 2, characterized in that: The lower magnet (3) consists of two separate elongated magnets, and the upper magnet (4) is an elongated magnet that corresponds to the lower magnet (3) and can be separated from the lower magnet (3) when the carrying tray (2) rotates.

4. The balance pan structure according to claim 3, characterized in that: The slot (5) is an arc-shaped slot; the lever (7) is horizontal and parallel to the upper magnet (4).

5. The balance pan structure according to claim 1, characterized in that: The supporting tray (2) is in the shape of a frustum, with its lower bottom surface located inside the weighing pan (1), and the diameter of the upper bottom surface of the supporting tray (2) being greater than the maximum diameter of the weighing pan (1).

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