Weighing device

Abstract

The utility model relates to the technical field of weighing, and discloses a weighing device comprising a housing; the sensor is arranged in the machine shell; the tray is arranged above the machine shell and is connected with the sensing end of the sensor; the protection piece is movably arranged on the machine shell, a first protection part is formed at the end, located in the machine shell, of the protection piece, and a holding part is formed at the end, located outside the machine shell, of the protection piece; wherein when the protection piece is located at the first position, the first protection part abuts against the induction end to support the induction end, and when the protection piece moves to the second position, the first protection part is far away from the induction end to relieve the support to the induction end. The weighing equipment can effectively prevent the sensor from being damaged by impact and overload.

Description

Technical Field

[0001] The utility model relates to the technical field of weighing, and in particular to a weighing device. Background Art

[0002] In current weighing equipment, sensors are key measuring components, and their stability and accuracy are crucial to overall performance. However, during transportation and daily use, sensors often face numerous challenges, with shock and overload being the main causes of sensor damage. This damage directly impacts measurement accuracy, and consequently, the reliability and effectiveness of the entire scale.

[0003] Currently, most weighing equipment is only protected by packaging, which can only solve the impact problem caused by transportation. This method not only increases the amount of packaging materials, but also fails to protect the sensor during daily use. Utility Model Content

[0004] The present invention is made to solve the above technical problems, and one of its purposes is to provide a weighing device that can effectively prevent impact, overload and damage to the sensor.

[0005] According to one embodiment of the present utility model, a weighing device is provided, including: a casing; a sensor arranged in the casing; a tray arranged above the casing and connected to the sensing end of the sensor; a protective member movably provided on the casing, with a first protective portion formed at one end located inside the casing and a gripping portion formed at one end located outside the casing; wherein when the protective member is located in a first position, the first protective portion abuts against the sensing end to provide support for the sensing end, and when the protective member moves to a second position, the first protective portion moves away from the sensing end to release the support for the sensing end.

[0006] As an embodiment, the protective member is slidably provided on the casing. When the protective member is located at a first position, the first protective portion abuts against the lower end surface of the sensing end to provide support for the sensing end. When the protective member slides to a second position, the first protective portion is located on the side of the sensing end to release the support for the sensing end.

[0007] As an embodiment, a second protection portion is formed at the inner end of the protection member, and when the protection member slides to the second position, the second protection portion is located at a preset distance below the sensing end.

[0008] As an embodiment, a side edge of the first protection portion close to the sensing end is formed with an arc-shaped guide surface.

[0009] As an embodiment, the protective member is slidably arranged on the bottom surface or side surface of the housing.

[0010] As an embodiment, the protective member is slidably provided on the top surface of the housing, the gripping portion is located above the tray, and a through hole for the protective member to slide is formed on the tray.

[0011] As an embodiment, the protective member is rotatably provided on the casing. When the protective member is located at a first position, the first protective portion abuts against the lower end surface of the sensing end to provide support for the sensing end. When the protective member is rotated to a second position, the first protective portion is located on the side of the sensing end to release the support for the sensing end.

[0012] As an embodiment, a second protection portion is formed at the inner end of the protection member. When the protection member is rotated to the second position, the second protection portion is located at a preset distance below the sensing end.

[0013] As an embodiment, the gripping portion is in the shape of an elongated strip.

[0014] As an embodiment, a side edge of the first protection portion close to the sensing end is formed with an arc-shaped guide surface.

[0015] According to the above description and practice, the weighing device of the present invention has a protective member movably provided on the housing. When weighing is not required, the protective member is moved to the first position, and the first protective portion thereon can abut against the sensing end of the sensor, providing support for the sensing end. At this time, if the weighing device is impacted or there is a large load on the tray, the sensing end of the sensor will not deform, thus preventing damage to the sensor due to impact or overload. When weighing is required, the protective member is moved to the second position, and the first protective portion can release its support for the sensing end, allowing the sensing end to deform freely and complete the weighing task. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 and Figure 2 This is a structural diagram of the weighing device involved in the first embodiment of the present utility model, wherein: Figure 1 The protective member is in the first position, Figure 2 The protective member is in the second position.

[0017] Figure 3 This is a structural diagram of the weighing equipment involved in the second embodiment of the present utility model.

[0018] Figure 4a and Figure 4b This is a structural diagram of the weighing device involved in the third embodiment of the present utility model. Figure 4a The protective member is in the first position, Figure 4b The protective member is in the second position.

[0019] Figure 5 and Figure 6 This is a structural diagram of the weighing device involved in the fourth embodiment of the present utility model, wherein: Figure 5 The protective member is in the first position, Figure 6 The protective member is in the second position.

[0020] The reference numerals in the figures are:

[0021] 1. Housing 2. Sensor

[0022] 3. Tray 4. Protective parts

[0023] 21. Sensing end 41. First protection part

[0024] 42. Second protection portion 43. Grip portion

[0025] 44. Guide surface 45. Limiting ring DETAILED DESCRIPTION

[0026] The exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0027] In addition, the accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated description will be omitted. It should be noted that in the present disclosure, the terms "including", "configured with", and "set on" are used to express open-ended inclusion and mean that in addition to the listed elements / components / etc., there may be additional elements / components / etc.; the terms "first", "second", etc. are used only as labels and are not intended to limit the number or order of their objects; the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention.

[0028] Unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0029] Example 1

[0030] like Figure 1 and Figure 2 As shown, in this embodiment, the weighing device includes a housing 1, a sensor 2, a tray 3, and a protective member 4. The housing 1 is the main structure of the weighing device, and the sensor 2 is mounted within the housing 1. One end of the sensor 2 is fixed, and the other end of the sensor 2 is a cantilevered sensing terminal 21. Weighing is achieved by deformation of the sensing terminal 21. The tray 3 is located above the housing 1 and connected to the sensing terminal 21 of the sensor 2. When an object is placed on the tray 3, gravity is transferred to the sensing terminal 21, causing it to deform, thereby determining the object's weight.

[0031] The protective member 4 is movably mounted on the housing 1. A first protective portion 41 is formed on one end of the protective member located within the housing 1, and a grip portion 43 is formed on the other end located outside the housing 1. When the protective member 4 is in the first position, the first protective portion 41 abuts against the sensing terminal 21, providing support therefor. At this point, if the weighing device is impacted or if heavy items are placed on the tray 3, the sensing terminal 21 will not deform, thereby protecting the sensor 2 from damage due to impact or overload. Using the grip portion 43 on the outside of the housing 1, the user can move the protective member 4 to the second position. At this point, the first protective portion 41 moves away from the sensing terminal 21, releasing its support, allowing normal weighing operations to resume.

[0032] Specifically, in this embodiment, the protective member 4 is slidably provided on the housing 1. When the protective member 4 is located at the first position, the first protective portion 41 abuts against the lower end surface of the sensing end 21 to form a support for the sensing end 21. Figure 1 With the help of the grip portion 43, the user can slide the protective member 4 outside the housing 1 to the second position, at this time, the first protective portion 41 is located on the side of the sensing end 21, ie Figure 2 In the state shown, the support for the sensing end 21 is released and normal weighing tasks can be performed.

[0033] In other embodiments, the first protection portion 41 may also abut against the side of the sensing terminal 21, as long as it can provide upward support for the sensing terminal 21. For example, a retaining hole may be provided on the side of the sensing terminal 21, and the first protection portion 41 may extend into the retaining hole to provide support for the sensing terminal 21. For another example, if the short-circuit detection portion of the sensing terminal 21 is configured as a step, the first protection portion 41 may abut against the step to provide support for the sensing terminal 21. In all of these situations, protection of the sensor 2 can be achieved.

[0034] like Figure 1 As shown, the protective member 4 is slidably arranged on the bottom surface of the housing 1, and an inwardly concave sliding groove is formed on the protective member 4. A slider slidably assembled in the groove is formed on the housing 1. The sliding groove and the slider are both arranged horizontally, so that the protective member 4 can only slide horizontally. After supporting the sensing end 21, even if the sensing end 21 is subjected to a vertical force, the protective member 4 can prevent the sensing end 21 from generating vertical displacement, thereby protecting the sensor 2.

[0035] In this embodiment, a second protective portion 42 is further formed at the inner end of the protective member 4. When the protective member 4 slides to the second position, the second protective portion 42 is located at a preset distance below the sensing end 21, which can limit the downward displacement of the sensing end 21. During weighing operations, if items exceeding the rated load are placed on the tray 3, the lower side of the sensing end 21 will rest against the second protective portion 42 to prevent further deformation and damage to the sensor 2, thereby realizing the anti-overload function of the weighing equipment. In actual applications, the preset distance can be confirmed based on the rated load of the sensor 2 and its own strength to ensure that the sensor 2 always deforms within the allowable range.

[0036] In this embodiment, the first protection portion 41 and the second protection portion 42 are both block-shaped structures on the protection member 4 , which can form a stable support for the sensing end 21 of the sensor 2 in corresponding states.

[0037] When the weighing device is not in use, in order to provide stable support for the sensing terminal 21, the first protection portion 41 is typically configured to be flush with the lower surface of the sensing terminal 21. In this case, when the protection member 4 slides from the second position to the first position, the top of the first protection portion 41 is prone to friction and collision with the sensing terminal 21. Therefore, in this embodiment, a curved guide surface 44 is formed on the side of the first protection portion 41 near the sensing terminal 21 to facilitate smooth movement of the first protection portion 41 below the sensing terminal 21.

[0038] As an embodiment, the housing 1 is further provided with a stopper to limit the upward movement of the sensing end 21 of the sensor 2. When the protective member 4 is in the first position, the first protective portion 41 and the stopper clamp the sensing end 21, limiting the upward and downward movement of the sensing end 21. This further enhances the protection of the sensor 2 and enables the weighing device to withstand external impacts from multiple directions.

[0039] Example 2

[0040] The main difference between the weighing device in this embodiment and the weighing device in the first embodiment is that the protective member 4 is provided at a different position on the housing 1, and accordingly, the specific structure of the protective member 4 is also different. Figure 3 As shown, the protective member 4 is slidably mounted on the side of the housing 1 in a transverse direction. Its inner end is formed with a first protective portion 41 extending toward the sensing end 21 of the sensor 2, and its outer end is formed with a grip portion 43 for user manipulation. In this embodiment, the first protective portion 41 is a bent rod, with at least a portion of its upper end being flat and capable of contacting the lower end of the sensing end 21.

[0041] When the protective member 4 is in the first position, the top surface of the first protective portion 41 abuts against the lower surface of the sensing terminal 21, providing support for the sensing terminal 21. At this point, if the weighing device is impacted or if heavy items are placed on the tray 3, the sensing terminal 21 will not deform, thus protecting the sensor 2 from damage due to impact or overload. Using the grip 43 on the exterior of the housing 1, the user can slide the protective member 4 to the second position. At this point, the first protective portion 41 moves away from the sensing terminal 21, releasing its support, allowing normal weighing operations to resume.

[0042] The other structures of the weighing device are the same as those of the weighing device in Example 1 and will not be described again here.

[0043] Example 3

[0044] The main difference between the weighing device in this embodiment and the weighing device in the first embodiment is that the protective member 4 is provided at a different position on the housing 1, and accordingly, the specific structure of the protective member 4 is also different. Figure 4a and Figure 4b As shown, the protective member 4 is slidably mounted on the tray 3 on the top surface of the housing 1. A first protective portion 41 is formed on its inner end, extending toward the sensing end 21 of the sensor 2. A grip portion 43 is formed on its outer end for user manipulation. The grip portion 43 extends through the tray 3 and is located above the tray 3, making it easy for the user to manipulate the protective member 4. A through hole is also provided on the tray 3 for the sliding of the protective member 4.

[0045] An inwardly concave sliding groove is formed on the protective member 4, and a slider that is slidably assembled in the groove is formed on the tray 3. The sliding groove and the slider are both arranged horizontally, so that the protective member 4 can only slide horizontally. A boss that can support the first protective part 41 is provided inside the casing 1. After the first protective part 41 supports the sensing end 21, the lower end rests on the boss. Even if the sensing end 21 is subjected to a vertical force, the protective member 4 can prevent the sensing end 21 from generating vertical displacement, thereby protecting the sensor 2.

[0046] In this embodiment, the first protective portion 41 is a bent rod, and at least part of its upper end surface is a plane that can abut against the lower end surface of the sensing end 21. When the protective member 4 is in the first position, the top surface of the first protective portion 41 abuts against the lower end surface of the sensing end 21, providing support for the sensing end 21. At this time, if the weighing device is impacted or there are heavy items on the tray 3, the sensing end 21 will not be deformed, thereby protecting the sensor 2 and preventing the sensor 2 from being damaged by impact or overload. With the help of the grip 43 outside the housing 1, the user can slide the protective member 4 to the second position. At this time, the first protective portion 41 is away from the sensing end 21, and the lower end also leaves the boss, releasing the support for the sensing end 21, and normal weighing tasks can be performed subsequently.

[0047] The other structures of the weighing device are the same as those of the weighing device in Example 1 and will not be described again here.

[0048] Example 4

[0049] The main difference between the weighing device in this embodiment and the weighing device in the first embodiment is that the protective member 4 is moved differently on the housing 1, and accordingly, the specific structure of the protective member 4 is also different. Figure 5 and Figure 6 As shown, the protective member 4 is rotatably mounted on the bottom surface of the housing 1. Its inner end is formed with a first protective portion 41 extending upward, and its outer end is formed with a grip portion 43 for user rotation. A through hole is formed on the bottom plate of the housing 1 for the protective member 4 to rotate. A retaining ring 45 with a diameter larger than the through hole is formed on the protective member 4. The retaining ring 45 is located above the through hole to limit the downward movement of the protective member 4.

[0050] When the protective member 4 is in the first position, the first protective portion 41 abuts against the lower end surface of the sensing end 21 to support the sensing end 21. Figure 5 With the help of the grip portion 43, the user can rotate the protective member 4 outside the housing 1 to the second position, at this time, the first protective portion 41 is located on the side of the sensing end 21, ie Figure 6 In the state shown, the support for the sensing end 21 is released and normal weighing tasks can be performed.

[0051] The grip portion 43 in this embodiment is a long strip structure, which makes it easy for the user to operate the protective member 4 without the need for a special tool housing 1. In this embodiment, the first protective portion 41 is a block-shaped structure that protrudes upward, and can form a stable support for the sensing end 21 of the sensor 2 in the above state.

[0052] When the weighing device is not in use, in order to provide stable support for the sensing terminal 21, the first protection portion 41 is typically configured to be flush with the lower surface of the sensing terminal 21. In this case, when the protection member 4 rotates from the second position to the first position, the top of the first protection portion 41 is prone to friction and collision with the sensing terminal 21. Therefore, in this embodiment, a curved guide surface 44 is formed on the side of the first protection portion 41 near the sensing terminal 21 to facilitate smooth movement of the first protection portion 41 below the sensing terminal 21.

[0053] In this embodiment, a second protective portion 42 is further formed at the inner end of the protective member 4. When the protective member 4 is rotated to the second position, the second protective portion 42 is located at a preset distance below the sensing end 21, which can limit the downward displacement of the sensing end 21. During weighing operations, if items exceeding the rated load are placed on the tray 3, the lower side of the sensing end 21 will rest against the second protective portion 42 to prevent further deformation and damage to the sensor 2, thereby realizing the anti-overload function of the weighing device. In actual applications, the preset distance can be confirmed based on the rated load of the sensor 2 and its own strength to ensure that the sensor 2 always deforms within the allowable range.

[0054] In this embodiment, the protective member 4 is positioned below the sensing terminal 21. The upper end of the protective member 4 is circular, with the first protective portion 41 being a raised structure located on the periphery, and the second protective portion 42 being a flat structure located in the center. When the protective member 4 is in the second position, the first protective portion 41 is positioned below and on both sides of the sensing terminal 21, allowing the first sensing terminal 21 to deform downward until it abuts against the second protective portion 42. When the protective member 4 is rotated to the first position, the first protective portion 41 abuts against the sensing terminal 21, providing support for the sensing terminal 21 and protecting the sensor 2.

[0055] The other structures of the weighing device are the same as those of the weighing device in Example 1 and will not be described again here.

[0056] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A weighing device, characterized in that: include: chassis; a sensor, disposed in the housing; a tray, disposed above the housing and connected to the sensing end of the sensor; a protective member movably disposed on the housing, having a first protective portion formed on one end located inside the housing and a gripping portion formed on one end located outside the housing; in When the protective member is located at the first position, the first protective portion abuts against the sensing end to provide support for the sensing end. When the protective member moves to the second position, the first protective portion moves away from the sensing end to release support for the sensing end.

2. The weighing device according to claim 1, characterized in that The protective member is slidably arranged on the casing. When the protective member is located at a first position, the first protective portion abuts against the lower end surface of the sensing end to provide support for the sensing end. When the protective member slides to a second position, the first protective portion is located on the side of the sensing end to release the support for the sensing end.

3. The weighing device according to claim 2, characterized in that A second protection portion is formed at the inner end of the protection member. When the protection member slides to the second position, the second protection portion is located at a preset distance below the sensing end.

4. The weighing device according to claim 2, characterized in that An arc-shaped guide surface is formed on a side of the first protection portion close to the sensing end.

5. The weighing device according to claim 2, characterized in that The protection member is slidably arranged on the bottom surface or the side surface of the casing.

6. The weighing device according to claim 2, characterized in that The protective member is slidably arranged on the top surface of the housing, the gripping portion is located above the tray, and a through hole for the protective member to slide is formed on the tray.

7. The weighing device according to claim 1, wherein: The protective member is rotatably mounted on the housing. When the protective member is located at a first position, the first protective portion abuts against the lower end surface of the sensing end to provide support for the sensing end. When the protective member is rotated to a second position, the first protective portion is located to the side of the sensing end to release the support for the sensing end.

8. The weighing device according to claim 7, characterized in that A second protection portion is formed at the inner end of the protection member. When the protection member is rotated to the second position, the second protection portion is located at a preset distance below the sensing end.

9. The weighing device according to claim 7, characterized in that The gripping portion is in the shape of an elongated strip.

10. The weighing device according to claim 7, characterized in that An arc-shaped guide surface is formed on a side of the first protection portion close to the sensing end.

Images