Waterproof mechanism and waterproof method of electronic scale

Abstract

This invention discloses a waterproof mechanism and method for an electronic scale, relating to the field of waterproof electronic scale technology. The waterproof mechanism includes a scale body with a weighing panel, the weighing panel being connected to a weighing sensor within the scale body via a support column. It also includes: a water-blocking sleeve fitted onto the support column, one end of which is connected to the scale body to prevent liquid from entering the scale body through the gap between the support column and the scale body; and a flexible collar. This invention, by providing a flexible collar on the support column that, when not weighing, is in close contact with the support column to prevent moisture from entering the scale body and seals the gap between the water-blocking sleeve and the support column, allows the flexible collar to remain in contact with the support column during weighing. It also collects and treats dripping water, and during the treatment process, it can spray a deodorizing or disinfecting liquid, generating an adsorption force to hold the weighed object in place, preventing movement that could affect weighing accuracy.

Description

Technical Field

[0001] This invention belongs to the field of waterproof technology for electronic scales, specifically, it relates to a waterproof mechanism and waterproof method for electronic scales. Background Technology

[0002] Electronic scales are a type of weighing instrument that uses Hooke's Law or the lever balance principle of forces to determine the mass of an object. According to their structural principles, they can be divided into three main categories: mechanical scales, electronic scales, and electromechanical scales. Electronic scales mainly consist of a load-bearing system, a force transmission and conversion system, and a display system. According to their functions, they can also be divided into waterproof electronic scales, etc.

[0003] When using an electronic scale, if the object being weighed contains easily leaking liquid, the liquid will flow to both sides of the weighing panel and enter the gap between the weighing panel and the scale housing. Since the weighing panel needs to pass through a support column into the scale housing and connect to the pressure sensor inside, there will be a gap at the point where the support column passes through the housing. Liquid entering between the weighing panel and the scale housing may seep into the scale housing through this gap, damaging the electrical components inside. This is especially problematic when weighing seafood, as the high salt content of seafood makes it more susceptible to corrosion and damage to electrical components. Furthermore, seawater has good conductivity; if seawater seeps into the internal components or between contacts, it may cause a short circuit, damaging the electronic devices or rendering the scale unusable.

[0004] Therefore, we propose a waterproof mechanism for electronic scales to further improve the waterproof performance of existing electronic scales. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a waterproof mechanism for an electronic scale that can overcome or at least partially solve the above problems.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: a waterproof mechanism for an electronic scale, including a scale body with a weighing panel, the weighing panel being connected to a weighing sensor in the scale body via a support column, and further including: a water-blocking sleeve fitted on the support column, one end of the water-blocking sleeve being connected to the scale body to prevent liquid from entering the scale body through the gap between the support column and the scale body; a flexible collar fitted on the support column and connected to the water-blocking sleeve via a flexible film, so that when not weighing, the flexible collar is in close contact with the support column to seal the gap between the water-blocking sleeve and the support column, and when weighing, the flexible collar does not contact the support column; an inclined slope symmetrically arranged on the scale body to guide the liquid located between the scale body and the weighing panel toward the support column; and a drain hole located in the scale body to drain the guided liquid between the scale body and the weighing panel.

[0007] Preferably, it further includes: a drive mechanism, for keeping the flexible collar in close contact with the support column when not weighing, sealing the gap between the water-blocking sleeve and the support column, and for keeping the flexible collar out of contact with the support column when weighing.

[0008] Preferably, the driving mechanism includes a connecting column slidably disposed on the weighing panel, and a spring sleeved on the connecting column to drive the connecting column to slide and then reset; it also includes a connecting rod disposed between the connecting column and the flexible collar, which pulls the flexible collar away from the supporting column when the connecting column slides down.

[0009] Furthermore, it also includes: an absorbent sponge placed on the inclined slope to absorb liquid.

[0010] Furthermore, it also includes: a limiting plate, used to limit the movement of weighted objects.

[0011] Furthermore, it also includes: a plate located at the end of the connecting column; a channel formed in the plate; and multiple connecting holes formed on the side of the plate facing the absorbent sponge. The connecting holes are connected to the channel and are used to vent air through the connecting holes to the absorbent sponge when the connecting column slides down, causing the liquid in the absorbent sponge to flow rapidly towards the drain hole. When the connecting column slides up and resets, deodorizing liquid is sprayed through the connecting holes into the gap between the scale body and the weighing panel.

[0012] Furthermore, it also includes: a sleeve disposed on the weighing panel, the connecting column slidably connected to the sleeve, a sliding plate fixedly connected to the connecting column, the sliding plate slidably connected in the sleeve, the sliding plate dividing the sleeve into a first chamber and a second chamber; a suction pipe and a discharge pipe, both disposed on the first chamber, for drawing the deodorizing liquid into the first chamber and discharging it into the channel through the discharge pipe; it also includes: an air outlet pipe and an air inlet pipe, both disposed on the second chamber, for discharging the gas in the second chamber through the air outlet pipe into the channel when the connecting column slides down; the suction pipe, the discharge pipe, and the air inlet pipe are each equipped with a first one-way valve, and the air outlet pipe is equipped with a one-way overflow valve.

[0013] Furthermore, it also includes: a negative pressure suction tube, which is installed on the weighing panel to suck up the object during weighing to prevent it from moving; the first chamber and the negative pressure suction tube are connected by a suction pipe, and a second one-way valve is installed on the suction pipe.

[0014] Furthermore, it also includes: a mounting groove, formed on the bottom surface of the scale body; a liquid storage box, disposed in the mounting groove, wherein the insertion tube on the liquid storage box is inserted into the drain hole.

[0015] A method for waterproofing an electronic scale includes the following steps:

[0016] S1. By installing a water-blocking sleeve on the support column, the water-blocking sleeve can block water. When not weighing, the flexible collar is in close contact with the support column to seal the gap between the water-blocking sleeve and the support column and prevent water vapor from entering the scale body. When weighing, the flexible collar does not contact the support column.

[0017] S2. When the connecting column moves down, it drives the sliding plate to squeeze the gas in the second chamber. The gas is then sprayed through the connecting hole into the gap between the scale body and the weighing panel to remove water.

[0018] S3. When the connecting column moves down, the negative pressure suction tube is drawn through the suction tube to adsorb the weighed object and prevent it from moving and affecting the weighing accuracy.

[0019] S4. After weighing is completed, the connecting column moves upward after the object is removed, squeezing the liquid in the first chamber out of the connecting hole and spraying it into the gap between the scale body and the weighing panel to deodorize or disinfect, thus achieving waterproofing during and after weighing.

[0020] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The present invention sets a flexible collar on the support column so that when not weighing, it can be tightly attached to the support column to prevent water vapor from entering the scale body and seal the gap between the water-blocking sleeve and the support column. When weighing, the flexible collar can not contact the support column and collect and treat the dripping water. In the process of treatment, it can also spray liquid for deodorization or disinfection and generate an adsorption force to hold the weighed object and avoid movement that affects the weighing accuracy. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1 A three-dimensional structural diagram of a waterproof mechanism for an electronic scale proposed in this invention. Figure 1 ;

[0023] Figure 2 This invention provides a waterproof mechanism for an electronic scale. Figure 1 Schematic diagram of the structure at point A;

[0024] Figure 3 This invention provides a waterproof mechanism for an electronic scale. Figure 1 Schematic diagram of the structure at point B;

[0025] Figure 4 A three-dimensional structural diagram of a waterproof mechanism for an electronic scale proposed in this invention. Figure 2 ;

[0026] Figure 5 This invention provides a waterproof mechanism for an electronic scale. Figure 4 Schematic diagram of the structure at point C;

[0027] Figure 6 A three-dimensional structural diagram of a waterproof mechanism for an electronic scale proposed in this invention. Figure 3 ;

[0028] Figure 7 This invention provides a waterproof mechanism for an electronic scale. Figure 6 Schematic diagram of the structure at point D;

[0029] Figure 8 A three-dimensional structural diagram of a waterproof mechanism for an electronic scale proposed in this invention. Figure 4 ;

[0030] Figure 9 Top view of a waterproof mechanism for an electronic scale proposed in this invention. Figure 1 ;

[0031] Figure 10 Top view of a waterproof mechanism for an electronic scale proposed in this invention. Figure 2 ;

[0032] Figure 11 This is a schematic diagram of the plate and sponge structure of the waterproof mechanism of an electronic scale proposed in this invention;

[0033] Figure 12 This is a schematic diagram of the storage cavity structure of a waterproof mechanism for an electronic scale proposed in this invention;

[0034] Figure 13 This is a schematic diagram of the structure of the water-blocking sleeve, flexible collar, and flexible film of the waterproof mechanism of an electronic scale proposed in this invention.

[0035] In the diagram: 1. Scale body; 10. Water-blocking sleeve; 11. Weighing panel; 12. Limiting plate; 13. Sleeve; 130. First chamber; 1301. Suction pipe; 1302. Air suction pipe; 1303. Drain pipe; 1300. Second chamber; 13001. Air outlet pipe; 13002. Air inlet pipe; 131. Connecting column; 132. Slide plate; 133. Spring; 14. Plate; 141. Channel; 142. Connecting hole; 15. Absorbent sponge; 16. Support column; 161. Inclined surface; 17. Flexible collar; 171. Flexible film; 172. Connecting rod; 18. Negative pressure suction pipe; 19. Storage chamber; 191. Liquid filling pipe; 2. Inclined slope; 21. Drain hole; 22. Mounting groove; 23. Liquid storage box; 231. Insertion tube; 3. Limiting sleeve. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0037] Example:

[0038] Reference Figures 1-13A waterproof mechanism for an electronic scale includes a scale body 1 with a weighing panel 11. The weighing panel 11 is connected to a weighing sensor in the scale body 1 via a support column 16. When a weighted object is placed on the weighing panel 11, gravity is transmitted to the weighing sensor through the support column 16. The weighing sensor identifies the weight of the object and displays it on the display panel of the scale body 1. Therefore, the scale body 1 needs to have an opening for accommodating the support column 16. One end of the support column 16 extends into the scale body 1 through the opening and is connected to the weighing sensor installed in the scale body 1. The scale body 1 also includes a water-blocking sleeve 10 sleeved on the support column 16, with one end of the water-blocking sleeve 10 connected to the scale body 1. A connection is provided to prevent liquid from entering the scale body 1 through the gap between the support column 16 and the scale body 1; a flexible collar 17 is fitted on the support column 16 and connected to the water-blocking sleeve 10 through a flexible film 171, so that the flexible collar 17 is in close contact with the support column 16 when not weighing, sealing the gap between the water-blocking sleeve 10 and the support column 16, and the flexible collar 17 does not contact the support column 16 when weighing; an inclined slope 2 is symmetrically arranged on the scale body 1 to guide the liquid located between the scale body 1 and the weighing panel 11 towards the support column 16; and a drain hole 21 is located in the scale body 1 to drain the guided liquid between the scale body 1 and the weighing panel 11.

[0039] During use, the device works by placing the object to be weighed on the weighing panel 11. The liquid in the object flows onto the weighing panel 11 and then flows to both sides, dripping onto the scale body 1. The inclined slope 2 on the scale body 1 is inclined towards the support column 16, causing the liquid dripping onto the inclined slope 2 to flow towards the support column 16. By installing a water-blocking sleeve 10 at the opening of the scale body 1, the liquid can be prevented from entering the opening of the scale body 1, thus achieving a certain waterproof effect.

[0040] Meanwhile, the device further incorporates a flexible collar 17, which is fitted onto the support column 16. The inner walls of the flexible collar 17 and the flexible film 171 are spaced apart from the outer wall of the support column 16, preventing them from contacting the support column 16 and thus avoiding affecting the weighing accuracy during weighing.

[0041] Specifically, the upper diameter of the support column 16 is larger than the lower diameter. An inclined surface 161 is provided on the outer wall of the upper end of the support column 16. The inner wall of the flexible collar 17 is inclined at the same angle as the inclined surface 161. Therefore, when the flexible collar is not weighing, the inner wall of the flexible collar 17 is in contact with the inclined surface 161 at the upper end of the support column 16, which can seal the gap between the support column 16 and the water-blocking sleeve 10, preventing water vapor from entering the interior of the scale body 1 through the gap.

[0042] During weighing, when the object is placed on the weighing panel 11, the flexible collar 17 will move away from the inclined surface 161 of the support column 16, so that the flexible collar 17 does not contact the support column 16, thus avoiding affecting the weighing accuracy. The flexible film 171 is used to shrink and unfold when the flexible collar 17 moves up and down. The flexible film 171 is a soft film with a light texture, which can further reduce the impact on the weighing accuracy.

[0043] When the liquid flows rapidly towards the support column 16 through the inclined slope 2, it will be discharged through the drain hole 21 in the scale body 1 to the gap between the weighing panel 11 and the scale body 1, thus avoiding liquid accumulation. The drain hole 21 can also be replaced with a tubular body for easy installation in the scale body 1.

[0044] In one embodiment, refer to Figure 13 A flexible film 171 is fitted onto the support column 16, and one end of the flexible film 171 is connected to the weighing panel 11. The upper diameter of the water-blocking sleeve 10 is larger than the lower diameter, and the outer wall of the upper end is inclined inward. A flexible ring 17 is fitted onto the water-blocking sleeve 10, and the other end of the flexible film 171 is connected to the water-blocking sleeve 10, forming an open end and a closed end with the weighing panel 11. The inner wall of the flexible ring 17 is inclined outward, which is compatible with the inward inclined shape of the outer wall of the upper end of the water-blocking sleeve 10. Therefore, when not in use, the flexible ring 17 is in close contact with the upper end of the water-blocking sleeve 10 to seal the gap between the flexible ring 17 and the water-blocking sleeve 10 and prevent water vapor from entering. When weighing, after the object is pressed down, the connecting rod 172 will pull the flexible ring 17 connected to it to move down, so that the flexible ring 17 is not in contact with the water-blocking sleeve 10.

[0045] It should be understood that when the scale body 1 is not in use, the inner wall of the flexible collar 17 is inclined outward and is in contact with the water-blocking sleeve 10, while the inner wall of the flexible collar 17 is vertical and there is a gap between it and the water-blocking sleeve 10, so they do not contact each other. Therefore, when weighing, after the flexible collar 17 moves down, the flexible collar 17 does not contact the support column 16, which not only achieves the waterproof effect, but also further improves the weighing accuracy.

[0046] It also includes: a drive mechanism, which is used to keep the flexible collar 17 in close contact with the support column 16 when not weighing, to seal the gap between the water-blocking sleeve 10 and the support column 16, and to prevent the flexible collar 17 from contacting the support column 16 when weighing.

[0047] In one embodiment, the driving mechanism includes a connecting column 131 slidably disposed on the weighing panel 11, and a spring 133 sleeved on the connecting column 131 for driving the connecting column 131 to slide and then reset; it also includes a connecting rod 172 disposed between the connecting column 131 and the flexible collar 17, which pulls the flexible collar 17 away from the support column 16 when the connecting column 131 slides down.

[0048] By placing an object on the weighing panel 11, the object, under the action of gravity, presses down on the connecting column 131, generating a downward force. When the connecting column 131 slides down, it pulls the flexible collar 17 downward through the connecting rod 172, so that the flexible collar 17 moves away from the inclined surface 161 of the support column 16 and does not contact the support column 16.

[0049] In one embodiment, it further includes: an absorbent sponge 15 disposed on the inclined slope 2 to absorb liquid, which can prevent the liquid on the scale body 1 from flowing everywhere when it is tilted during the weighing process.

[0050] It also includes: a limiting plate 12, used to limit the weight of the object;

[0051] In one embodiment, it further includes: a plate 14 located at the end of the connecting column 131; a channel 141 formed in the plate 14; and multiple sets of connecting holes 142 formed on the side of the plate 14 facing the absorbent sponge 15. The connecting holes 142 are connected to the channel 141 and are used to vent air through the connecting holes 142 to the absorbent sponge 15 when the connecting column 131 slides down, blowing the liquid in the absorbent sponge 15 to flow rapidly towards the drain hole 21, and spraying deodorizing liquid into the gap between the scale body 1 and the weighing panel 11 through the connecting holes 142 when the connecting column 131 slides up and resets.

[0052] By setting the plate 14 close to the absorbent sponge 15 but not in contact with it when the connecting column 131 slides down, the isomorphic connecting hole 142 discharges gas onto the absorbent sponge 15 when it is close to the absorbent sponge 15, which is used to blow the liquid in the absorbent sponge 15. The connecting hole 142 is set at an angle, which can blow the liquid in the absorbent sponge 15 towards the support column 16, improve the drainage effect, and thus effectively improve the waterproof effect of the scale body 1. Secondly, it can also dry the liquid.

[0053] In one embodiment, the system further includes: a sleeve 13 disposed on the weighing panel 11; a connecting post 131 slidably connected to the sleeve 13; a sliding plate 132 fixedly connected to the connecting post 131; the sliding plate 132 slidably connected within the sleeve 13; and the sliding plate 132 dividing the sleeve 13 into a first chamber 130 and a second chamber 1300; a suction pipe 1301 and a discharge pipe 1303, both disposed on the first chamber 130, for drawing deodorizing liquid into the first chamber 130. And the liquid is discharged from the drain pipe 1303 into the channel 141; it also includes: an exhaust pipe 13001 and an intake pipe 13002, both of which are installed on the second chamber 1300, so that when the connecting column 131 slides down, the slide plate 132 squeezes the gas in the second chamber 1300 and discharges it into the channel 141 through the exhaust pipe 13001; the suction pipe 1301, the drain pipe 1303, and the intake pipe 13002 are all equipped with a first one-way valve, and the exhaust pipe 13001 is equipped with a one-way overflow valve;

[0054] As the connecting column 131 slides down, the slide plate 132 squeezes the gas in the second chamber 1300. When the gas breaks through the one-way overflow valve, it fills the channel 141 and is discharged from the connecting hole 142, so that the gas discharged from the connecting hole 142 blows air onto the water-absorbing sponge 15 when weighing.

[0055] As the slide plate 132 slides down, the first chamber 130 draws in the deodorizing liquid through the suction pipe 1301. When the weighing is completed and the object is removed from the weighing panel 11, the connecting column 131 returns to its original position under the action of the spring 133. At this time, the slide plate 132 squeezes the liquid in the first chamber 130, and the liquid enters the channel 141 through the drain pipe 1303 and is discharged from the connecting hole 142. When the connecting column 131 moves up, the plate 14 moves away from the absorbent sponge 15, which increases the gap between the plate 14 and the absorbent sponge 15. At this time, the deodorizing liquid sprayed from the connecting hole 142 can diffuse in the gap between the scale body 1 and the weighing panel 11 to deodorize the gap.

[0056] Alcohol for disinfection can also be drawn into the first chamber 130.

[0057] In one embodiment, by fitting a limiting sleeve 3 with a notch onto the connecting post 131, the limiting sleeve 3 can be freely inserted and removed from the connecting post 131. When the connecting post 131 slides down, the bottom surface of the limiting plate 12 on the connecting post 131 contacts the upper end surface of the sleeve 13, and the plate 14 does not contact the absorbent sponge 15. When it is necessary to squeeze the absorbent sponge 15 to squeeze out the liquid in the absorbent sponge 15, the limiting sleeve 3 is removed from the connecting post 131 and the connecting post 131 is pressed down. At this time, the plate 14 can contact the absorbent sponge 15 and squeeze the absorbent sponge 15.

[0058] In one embodiment, it further includes: a negative pressure suction tube 18, which is disposed on the weighing panel 11 to suck up the object during weighing to prevent it from moving; the first chamber 130 and the negative pressure suction tube 18 are connected by a suction pipe 1302, and a second one-way valve is provided on the suction pipe 1302.

[0059] The negative pressure suction tube 18 can be used to hold objects with packaging bags when weighing them, thus preventing the packaging bags from sliding on the weighing panel 11 or the limiting plate 12 due to water on them, which would otherwise reduce the weighing accuracy.

[0060] When the object presses down on the connecting column 131 and the slide plate 132 slides down with the connecting column 131, the air in the negative pressure suction tube 18 is drawn into the first chamber 130 through the suction tube 1302, so that the negative pressure suction tube 18 can adsorb the packaging bag on the object.

[0061] At the same time, after the gas enters the first chamber 130, when the slide plate 132 moves up and squeezes the liquid in the first chamber 130, it can work with the gas in the first chamber 130 to produce a greater spraying effect, so that the liquid is sprayed over a larger area in the gap between the weighing panel 11 and the scale body 1.

[0062] It also includes: a mounting groove 22, which is opened on the bottom surface of the scale body 1; a liquid storage box 23, which is set in the mounting groove 22, and the insertion tube 231 on the liquid storage box 23 is inserted into the drain hole 21. By setting up the liquid storage box 23, it is easy to collect the liquid discharged from the drain hole 21. The liquid storage box 23 adopts a plug-in design. The insertion tube 231 on the liquid storage box 23 is inserted into the drain hole 21. On the one hand, it is easy to connect the liquid storage box 23 to the mounting groove 22, and on the other hand, it is easy to connect the drain hole 21 with the cavity inside the liquid storage box 23.

[0063] Furthermore, storage cavities 19 are provided on both sides of the scale body 1. The end of the suction pipe 1301 away from the first chamber 130 leads to the storage cavity 19. The storage cavity 19 is located on the scale body 1 and a liquid adding pipe 191 is installed to add liquid to the storage cavity 19.

[0064] Reference Figure 1 A method for waterproofing electronic scales includes the following steps:

[0065] S1. By installing a water-blocking sleeve 10 on the support column 16, the water-blocking sleeve 10 blocks water. Then, when not weighing, the flexible collar 17 is in close contact with the support column 16 to seal the gap between the water-blocking sleeve 10 and the support column 16 to prevent water vapor from entering the scale body 1. When weighing, the flexible collar 17 does not contact the support column 16.

[0066] S2. When the connecting column 131 moves down, it drives the sliding plate 132 to squeeze the gas in the second chamber 1300. The gas is then sprayed through the connecting hole 142 into the gap between the scale body 1 and the weighing panel 11 to remove water.

[0067] S3. When the connecting column 131 moves down, the negative pressure suction tube 18 is drawn through the suction tube 1302 to adsorb the weighed object and prevent it from moving and affecting the weighing accuracy.

[0068] S4. After weighing is completed, the connecting column 131 moves upward after the object is removed, and the liquid in the first chamber 130 is squeezed out from the connecting hole 142 and sprayed into the gap between the scale body 1 and the weighing panel 11 to deodorize or disinfect, thus achieving waterproofing during and after weighing.

[0069] This invention provides a flexible collar 17 on the support column 16 that, when not weighing, is tightly attached to the support column 16 to prevent moisture from entering the scale body 1, thus sealing the gap between the water-blocking sleeve 10 and the support column 16. When weighing, the flexible collar 17 does not contact the support column 16 and collects and treats the dripping water. During the treatment process, it can also spray a liquid for deodorization or disinfection and generate an adsorption force to hold the weighed object in place, preventing it from shifting and affecting the weighing accuracy.

[0070] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A waterproof mechanism of an electronic scale comprising a scale body (1) provided with a weighing panel (11), the weighing panel (11) being connected with a weighing sensor in the scale body (1) through a support column (16), characterized in that, Also includes: A water-blocking sleeve (10) is fitted on the support column (16). One end of the water-blocking sleeve (10) is connected to the scale body (1) to prevent liquid from entering the scale body (1) through the gap between the support column (16) and the scale body (1). A flexible collar (17) is fitted onto the support column (16) and connected to the water-blocking sleeve (10) via a flexible film (171). When not weighing, the flexible collar (17) is in close contact with the support column (16) to seal the gap between the water-blocking sleeve (10) and the support column (16). When weighing, the flexible collar (17) does not contact the support column (16). An inclined ramp (20) is symmetrically arranged on the scale body (1) to guide the liquid located between the scale body (1) and the weighing panel (11) toward the support column (16); A drain hole (21) is located in the scale body (1) to drain the guided liquid between the scale body (1) and the weighing panel (11); Also includes: The drive mechanism is used to ensure that the flexible collar (17) is in close contact with the support column (16) when not weighing, and to seal the gap between the water-blocking sleeve (10) and the support column (16). When weighing, the flexible collar (17) does not contact the support column (16). The driving mechanism includes a connecting column (131) slidably disposed on the weighing panel (11), and a spring (133) is sleeved on the connecting column (131) to drive the connecting column (131) to slide and then reset. It also includes a connecting rod (172), which is disposed between the connecting post (131) and the flexible collar (17). When the connecting post (131) slides down, the connecting rod (172) pulls the flexible collar (17) away from the support post (16).

2. The waterproof mechanism of an electronic scale according to claim 1, wherein, Also includes: An absorbent sponge (15) is placed on the inclined slope (20) to absorb liquid.

3. The waterproof mechanism of an electronic scale according to claim 1, wherein, Also includes: Limiting plate (12) is used to limit the weight of the object.

4. The waterproof mechanism of an electronic scale according to claim 2, wherein, Also includes: Plate (14) is located at the end of the connecting post (131); A channel (141) is formed in the plate (14); Multiple sets of connecting holes (142) are provided on the side of the plate (14) facing the absorbent sponge (15). The connecting holes (142) are connected to the channel (141) and are used to vent air onto the absorbent sponge (15) through the connecting holes (142) when the connecting column (131) slides down, blowing the liquid in the absorbent sponge (15) to flow quickly toward the drain hole (21), and spraying deodorizing liquid into the gap between the scale body (1) and the weighing panel (11) through the connecting holes (142) when the connecting column (131) slides up and resets. Also includes: A sleeve (13) is disposed on the weighing panel (11). The connecting column (131) is slidably connected to the sleeve (13). A sliding plate (132) is fixedly connected to the connecting column (131). The sliding plate (132) is slidably connected in the sleeve (13). The sliding plate (132) divides the sleeve (13) into a first chamber (130) and a second chamber (1300). The suction tube (1301) and the drain tube (1303) are both installed on the first chamber (130) to draw the deodorizing liquid into the first chamber (130) and discharge it into the channel (141) from the drain tube (1303); Also includes: The exhaust pipe (13001) and the intake pipe (13002) are both installed on the second chamber (1300) to allow the gas in the second chamber (1300) to be discharged into the channel (141) through the exhaust pipe (13001) when the connecting column (131) slides down; The suction pipe (1301), the discharge pipe (1303), and the air inlet pipe (13002) are each equipped with a first one-way valve, and the air outlet pipe (13001) is equipped with a one-way overflow valve.

5. The waterproof mechanism of an electronic scale according to claim 4, characterized in that, Also includes: A negative pressure suction tube (18) is provided on the weighing panel (11) to suck up the object during weighing to prevent it from moving. The first chamber (130) is connected to the negative pressure suction tube (18) through a suction tube (1302), and a second one-way valve is provided on the suction tube (1302).

6. The waterproof mechanism of an electronic scale according to claim 1, characterized in that, Also includes: Mounting groove (22) is provided on the bottom surface of the scale body (1); A liquid storage box (23) is set in the mounting groove (22), and the insertion tube (231) on the liquid storage box (23) is inserted into the drain hole (21).

7. A method for waterproofing an electronic scale, comprising the waterproofing mechanism of an electronic scale as described in claim 5, characterized in that, Includes the following steps: S1. By installing a water-blocking sleeve (10) on the support column (16), the water-blocking sleeve (10) blocks the water. When not weighing, the flexible sleeve (17) is in close contact with the support column (16) to seal the gap between the water-blocking sleeve (10) and the support column (16) to prevent water vapor from entering the scale body (1). When weighing, the flexible sleeve (17) does not contact the support column (16). S2. When the connecting column (131) moves down, it drives the sliding plate (132) to squeeze the gas in the second chamber (1300). The gas is then sprayed through the connecting hole (142) into the gap between the scale body (1) and the weighing panel (11) to remove water. S3. When the connecting column (131) moves down, the negative pressure suction tube (18) is drawn through the suction tube (1302) to adsorb the weighed object and prevent it from moving and affecting the weighing accuracy. S4. After weighing is completed, the connecting column (131) moves upward after the object is removed, and the liquid in the first chamber (130) is squeezed out from the connecting hole (142) and sprayed into the gap between the scale body (1) and the weighing panel (11) to deodorize or disinfect, so as to achieve waterproofing during weighing and waterproofing after weighing.

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