Totally-enclosed waterproof weighing instrument structure

Abstract

The utility model is suitable for technical field of instrument equipment, provide a kind of totally enclosed waterproof weighing instrument structure;Including: instrument outer casing, the instrument outer casing includes upper shell and lower shell, the upper shell is covered on lower shell, the upper shell and lower shell, the open end of the upper shell is provided with welding cooperation part, the open end of the lower shell is provided with welding cooperation part, the welding cooperation part of the upper shell is set on the welding cooperation part of lower shell, and the welding cooperation part of the upper shell is welded with the welding cooperation part on the lower shell between welding connection.The utility model realizes the totally enclosed connection of upper shell and lower shell by welding, eliminates the gap and interface existing in traditional sealing mode, fundamentally eliminates the infiltration approach of moisture.

Description

Technical Field

[0001] This utility model relates to the field of instrumentation technology, specifically a fully enclosed waterproof weighing instrument structure. Background Technology

[0002] Weighing instruments are widely used in material weighing and measurement across various fields such as industrial production and logistics. However, in certain special working environments, such as damp warehouses, outdoor open-air work sites, and seafood processing workshops, weighing instruments are highly susceptible to moisture corrosion. Traditional weighing instrument structures often employ sealing strips and screw fastening for protection, but this sealing method has several drawbacks. On the one hand, sealing strips age and deform after prolonged use, leading to a decrease in sealing performance. This allows moisture to easily seep into the instrument, damaging electronic components, affecting the normal operation of the weighing instrument, and increasing maintenance costs. On the other hand, screw-fastened structures have gaps, and when external environmental changes cause vibrations or impacts, the screws may loosen, also reducing waterproof performance. Furthermore, in harsh environments with high dust levels, ordinary sealing structures are insufficient to prevent dust from entering the instrument, affecting its lifespan and measurement accuracy. Therefore, there is an urgent need to design a weighing instrument structure with high waterproof performance to meet the needs of special working environments. Utility Model Content

[0003] The purpose of this invention is to provide a fully enclosed waterproof weighing instrument structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A fully enclosed waterproof weighing instrument structure includes: an instrument housing, the instrument housing including an upper housing and a lower housing, the upper housing covering the lower housing, the upper housing having a welded mating part at its open end, the lower housing having a welded mating part at its open end, the welded mating part of the upper housing being sleeved on the welded mating part of the lower housing, and the welded mating parts of the upper housing and the lower housing being welded together.

[0006] The upper and lower shells are fully enclosed by laser welding along the welding joint, forming a seamless and airtight overall sealed space.

[0007] As a further embodiment of this utility model: the welding mating parts on the upper shell and the welding mating parts on the lower shell adopt a stepped welding mating.

[0008] As a further embodiment of this utility model: the thickness of the welded mating part of the upper shell is less than that of the open end of the upper shell, and the welded mating part on the lower shell is contracted inward.

[0009] As a further improvement of this utility model: a wiring port is provided on the side wall of the lower housing, and a waterproof connector is provided on the wiring port.

[0010] As a further improvement of this utility model: a display screen motherboard is provided inside the instrument housing, the display screen motherboard is fixedly mounted on the upper housing, and the front end of the upper housing is provided with an operation button surface corresponding to the position of the display screen motherboard.

[0011] The mainboard of the display screen is embedded in the display screen mounting slot pre-set on the front end of the upper housing. The operation buttons are protected by waterproof adhesive to prevent the inside and outside from getting in, ensuring the waterproof performance of the operation buttons.

[0012] As a further improvement of this utility model, a waterproof adhesive is used between the operating button surface and the upper housing.

[0013] As a further embodiment of this utility model: the waterproof connector includes a connector body, the connector body passes through the wiring port, and a sealing plug is sleeved on the outside of the connector body. The sealing plug abuts against the bottom of the wiring port. A fastening nut is also installed on the outside of the connector body. The fastening nut is disposed in the lower housing, and the bottom of the fastening nut abuts against the lower housing.

[0014] As a further embodiment of this utility model: the welded mating portion of the upper shell extends outward, and the welded mating portion of the lower shell contracts inward; the welded mating portion of the upper shell is sleeved on the welded mating portion of the lower shell; the lower shell includes a bottom and an annular portion connected to the outer edge of the bottom; the annular portion includes a connecting section and a welded mating portion; the welded mating portion extends outward, and the welded mating portion on the lower shell contracts inward; a welding position is provided at the inner end of the welded mating portion on the upper shell, and the welding position is located near the outer edge of the welded mating portion on the lower shell.

[0015] Compared with the prior art, the beneficial effects of this utility model are: by welding, the upper shell and the lower shell are fully enclosed, eliminating the gaps and interfaces that exist in the traditional sealing method, and fundamentally eliminating the way for water to seep in. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the appearance of a fully enclosed waterproof weighing instrument structure according to an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the waterproof connector at the wiring port in a fully enclosed waterproof weighing instrument structure according to an embodiment of this utility model.

[0018] Figure 3This is an exploded structural diagram of a fully enclosed waterproof weighing instrument structure according to an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the structure of the instrument shell in a fully enclosed waterproof weighing instrument structure according to an embodiment of the present invention.

[0020] In the diagram: 1-Instrument housing, 101-Upper housing, 102-Lower housing, 2-Display mainboard, 3-Operation button faceplate, 4-Wiring port, 401-Waterproof connector, 4011-Connector body, 4012-Sealing plug, 4013-Fasting nut, 5-Welding mating part, 6-Waterproof adhesive, 51-Welding position. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example

[0023] Please see Figures 1-4 This utility model provides a structural diagram of a fully enclosed waterproof weighing instrument. The fully enclosed waterproof weighing instrument includes: an instrument housing 1, which comprises an upper housing 101 and a lower housing 102. The upper housing 101 covers the lower housing 102. The upper housing 101 and the lower housing 102 have a welding mating part 5 at their open ends, and the welding mating parts 5 of the upper housing 101 and lower housing 102 are welded together. By welding the upper housing 101 and the lower housing 102 together through the welding mating parts 5, the upper housing 101 and the lower housing 102 can be firmly welded together to form a fully enclosed instrument housing 1. The upper housing 101 and the lower housing 102 are connected by continuous welding.

[0024] This invention achieves a fully enclosed connection between the upper and lower shells through welding, eliminating the gaps and interfaces present in traditional sealing methods and fundamentally preventing moisture infiltration.

[0025] In a preferred embodiment of this utility model, the welding mating part 5 on the upper housing 101 and the welding mating part 5 on the lower housing 102 adopt a stepped welding mating. Both the upper housing 101 and the lower housing 102 are made of stainless steel. Specifically, the thickness of the welding mating part 5 on the upper housing 101 is less than the opening end of the upper housing 101, and the welding mating part 5 on the lower housing 102 is tapered inwards. The use of a stepped welding mating part and high-strength stainless steel, combined with laser welding, gives the instrument housing high structural strength and stability, enabling it to withstand certain external impacts and vibrations and adapt to complex working environments.

[0026] In a preferred embodiment of this utility model, the upper housing 101 and the lower housing 102 can be laser welded together along the welding mating part 5 using a laser welding device. By precisely controlling parameters such as laser power and welding speed, the upper housing 101 and the lower housing 102 can be firmly welded together to form a fully enclosed instrument housing 1.

[0027] In a preferred embodiment of the present invention, a wiring port 4 is provided on the side wall of the lower housing 102, and a waterproof connector 401 is provided on the wiring port 4.

[0028] In a preferred embodiment of this utility model, a display screen mainboard 2 is disposed inside the instrument housing 1. The display screen mainboard 2 is fixedly mounted on the upper housing 101. The operation button surface 3 is mounted on the corresponding position on the front end face of the upper housing 101. Waterproof adhesive 6 can be used between the operation button surface 3 and the upper housing 101. The display screen mainboard is embedded in a pre-set display screen mounting groove on the front end face of the upper housing 101. The operation button surface is protected from the inside and outside by the waterproof adhesive, ensuring the waterproof performance of the operation buttons.

[0029] This utility model features waterproof sealing structures on the control buttons and wiring ports, forming a comprehensive waterproof system that enables the weighing instrument to operate stably in humid and wet environments. The fully enclosed structure not only provides waterproofing but also effectively prevents dust from entering the instrument, avoiding damage to electronic components, extending the instrument's lifespan, and ensuring measurement accuracy. By effectively preventing the intrusion of moisture and dust, the probability of electronic components being damaged by moisture and dust accumulation is reduced, lowering maintenance frequency, extending the overall lifespan of the weighing instrument, and reducing operating costs.

[0030] During manufacturing, when laser welding the fully enclosed waterproof weighing instrument structure, the welding mating part 5 of the upper housing 101 and the lower housing 102 is first cleaned to ensure that the welding surface is clean and free of impurities. Then, the display motherboard 2 is installed inside the upper housing 101, fixing the display motherboard 2 in a suitable position on the upper housing 101.

[0031] In a preferred embodiment of this utility model, the waterproof connector 401 includes a connector body 4011, which passes through the wiring port 4. A sealing plug 4012 is fitted on the outside of the connector body 4011, and the sealing plug 4012 abuts against the bottom of the wiring port 4. A fastening nut 4013 is also installed on the outside of the connector body 4011. The fastening nut 4013 is disposed in the lower housing 102, and its bottom abuts against the lower housing 102. The fastening nut 4013 is used to fix the connector body 4011 onto the lower housing 102.

[0032] During installation, the connector body 4011 of the waterproof connector 401 is fixedly connected to the wiring port 4 on the side of the lower housing 102. After the wiring to be connected is passed through the sealing plug 4012, it is installed in a suitable position inside the connector body 4011. Then, the fastening nut 4013 is put on the outside of the connector body 4011 and tightened, so that the sealing plug 4012 tightly presses the wiring and achieves waterproof sealing of the wiring port 4.

[0033] Assemble the upper housing 101, which has the display motherboard 2, operation button surface 3, and wiring port 4 installed, and the lower housing 102. Make the welding mating parts 5 of the upper housing 101 and the lower housing 102 fit together. Use laser welding equipment to perform laser welding along the welding mating parts 5. By precisely controlling the laser power, welding speed and other parameters, the upper housing 101 and the lower housing 102 are firmly welded together to form a fully enclosed instrument housing 1.

[0034] like Figure 4 As shown, in another preferred embodiment of this utility model, the welding mating part 5 of the upper housing 101 extends outward, while the welding mating part 5 of the lower housing 102 contracts inward. The welding mating part 5 of the upper housing 101 is sleeved on the welding mating part 5 of the lower housing 102. The lower housing 102 includes a bottom and an annular portion connected to the outer edge of the bottom. The annular portion includes a connecting section and the welding mating part 5. The welding mating part 5 extends outward, while the welding mating part 5 on the lower housing 102 contracts inward. A welding position 51 is provided at the inner end of the welding mating part 5 on the upper housing 101, and the welding position 51 is located near the outer edge of the welding mating part 5 on the lower housing 102. This utility model provides a protrusion in the middle of the instrument housing 1, and the welding position 51 is located inside the upper housing 101. This avoids water accumulation on the surface of the instrument housing 1, and the welding position 51 is located at the most protruding position, which is less prone to water accumulation, further ensuring sealing. Located inside the upper housing 101, the welding position 51 effectively protects the welding interface.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A fully enclosed waterproof weighing instrument structure, characterized in that, include: The instrument housing (1) includes an upper housing (101) and a lower housing (102). The upper housing (101) covers the lower housing (102). The upper housing (101) and the lower housing (102) are connected by welding. The upper housing (101) has a welding mating part (5) at its open end, and the lower housing (102) has a welding mating part (5) at its open end. The welding mating part (5) of the upper housing (101) is sleeved on the welding mating part (5) of the lower housing (102). The welding mating part (5) of the upper housing (101) and the welding mating part (5) on the lower housing (102) are welded together.

2. The fully enclosed waterproof weighing instrument structure according to claim 1, characterized in that, The welding mating part (5) on the upper shell (101) and the welding mating part (5) on the lower shell (102) adopt a stepped welding mating.

3. The fully enclosed waterproof weighing instrument structure according to claim 2, characterized in that, The thickness of the welded mating part (5) of the upper shell (101) is less than that of the open end of the upper shell (101), and the welded mating part (5) on the lower shell (102) is contracted inward.

4. The fully enclosed waterproof weighing instrument structure according to claim 1, characterized in that, The lower housing (102) has a wiring port (4) on its side wall, and a waterproof connector (401) is provided on the wiring port (4).

5. The fully enclosed waterproof weighing instrument structure according to claim 1, characterized in that, The instrument housing (1) is equipped with a display screen motherboard (2), which is fixedly mounted on the upper housing (101). The front end of the upper housing (101) is provided with an operation button surface (3) corresponding to the position of the display screen motherboard (2).

6. The fully enclosed waterproof weighing instrument structure according to claim 5, characterized in that, Waterproof adhesive (6) is used between the operation button surface (3) and the upper housing (101).

7. The fully enclosed waterproof weighing instrument structure according to claim 4, characterized in that, The waterproof connector (401) includes a connector body (4011), which passes through the wiring port (4), and a sealing plug (4012) is sleeved on the outside of the connector body (4011). The sealing plug (4012) abuts against the bottom of the wiring port (4). A fastening nut (4013) is also installed on the outside of the connector body (4011). The fastening nut (4013) is located in the lower housing (102), and the bottom of the fastening nut (4013) abuts against the lower housing (102).

8. The fully enclosed waterproof weighing instrument structure according to claim 1, characterized in that, The welding mating part (5) of the upper shell (101) extends outward, and the welding mating part (5) of the lower shell (102) contracts inward. The welding mating part (5) of the upper shell (101) is sleeved on the welding mating part (5) of the upper shell (101). The lower shell (102) includes a bottom and an annular part connected to the outer edge of the bottom. The annular part includes a connecting section and a welding mating part (5). The welding mating part (5) extends outward, and the welding mating part (5) on the lower shell (102) contracts inward. A welding position (51) is provided at the inner end of the welding mating part (5) on the upper shell (101). The welding position (51) is located near the outer side of the welding mating part (5) on the lower shell (102).

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