Digital sensor for weighing to prevent overloading damage

Abstract

The utility model discloses a kind of digital sensors for weighing of anti-overweight damage, sensor shell and sensor shell inner surface mounting pedestal are set, and the upper surface of pedestal is equipped with sensor body, and sensitive element is attached in the middle section of sensor body upper surface;Including: support seat, is installed in the left end of the sensor body upper surface, and support seat is connected with support plate by magnetic attraction positioning mechanism;Extrusion rod, is installed in the lower surface of the support plate.The digital sensors for weighing of anti-overweight damage, sensor body is set with the sensor body of being convenient for stable support, and cooperate with the weighing work of the support plate and weighing surface of magnetic attraction assembly, and the position of rack is controlled by the cooperation of extrusion rod and elastic piece, so as to control extrusion block to be in pressure shrinkage state, when excessive weight occurs, extrusion elastic piece is separated from the engagement state, and elastic driving is unfolded, control extrusion block prevents anti-overweight damage to sensor body and uses.

Description

Technical Field

[0001] This utility model relates to the field of digital sensors for weighing, specifically a digital sensor for weighing that is protected against damage from overloading. Background Technology

[0002] A weighing digital sensor is a device that integrates signal processing, digital conversion, load sensing, and intelligent communication functions. It can directly display signals digitally, control the accuracy of weighing, and, with the help of a protective structure, prevent overloading and damage to the weighing digital sensor, thus improving safety. However, during use, it is inconvenient to control the stability of the weighing digital sensor, and it is easy to damage it when overloaded.

[0003] To overcome the aforementioned deficiencies, existing technology (Chinese patent application CN202211481892.2, filed on 2022-11-24) provides a weighing digital sensor to prevent damage from overloading. This overloading-resistant digital weighing sensor is equipped with a protective cover and a weighing plate. The assembled protective cover and weighing plate provide all-around protection for the weighing digital sensor, preventing debris from contaminating the sensor and certain moving parts, thus avoiding affecting weighing accuracy. Furthermore, when the weighing digital sensor experiences overloading, an alarm is triggered between the digital sensor, controller, alarm, and electric telescopic rod. The signal transmission enables the alarm to sound, allowing staff to take timely measures. It also controls the electric telescopic rod to push the protective cover and weighing plate upwards, moving the items upwards and dispersing the weight of the items pressing on the digital sensor, preventing damage from overload and achieving the overload protection function for the weighing digital sensor. While existing technologies can be used for protective support, they are inconvenient to quickly control the stability of the digital sensor support during operation, affecting the speed of protection when overloaded. Furthermore, they require excessive data analysis in conjunction with other sensors, resulting in a slow overload response and potential damage to the detection components.

[0004] To address the aforementioned issues, there is an urgent need for innovative designs based on existing digital sensors used for weighing. Utility Model Content

[0005] The purpose of this invention is to provide a digital weighing sensor that prevents damage from overload, thereby solving the problems mentioned in the background art, such as the inconvenience of quickly controlling the stability of the digital sensor support during operation, which affects the speed of protection against overload, and the need for excessive data analysis in conjunction with other sensors, resulting in a slow overload response and easy damage to the detection components.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a digital weighing sensor for preventing damage from overloading, comprising a sensor housing and a base mounted on the inner surface of the sensor housing, with the sensor body mounted on the upper surface of the base, and a sensitive element attached to the middle section of the upper surface of the sensor body; including: a support base mounted on the left end of the upper surface of the sensor body, and the support base being connected to a support plate via a magnetic positioning mechanism; a compression rod mounted on the lower surface of the support plate, with a fixing frame mounted on the left side of the inner surface of the sensor housing, and a rack elastically connected to the inner surface of the fixing frame, while the upper surface of the rack is connected to the lower side of the compression rod via an elastic engagement mechanism, and a gear disk meshing with the outer surface of the rack, and a compression block being linearly connected to the outer surface of the gear disk, and the compression block being positioned on the lower side of the sensor body for supporting and protecting the sensor body when it is overloaded.

[0007] Preferably, the magnetic positioning mechanism further includes a magnetic suction component embedded in the support base, and a support plate is connected to the upper surface of the magnetic suction component. A protective slide bar is connected between the support plate and the sensor housing, and a weighing surface is nested on the upper surface of the support plate. The support base and the support plate form a magnetic suction docking structure through the magnetic suction component, and the support plate and the sensor housing form a lifting and sealing sliding structure through the protective slide bar. The support plate and the weighing surface form a nested structure.

[0008] Preferably, a balance block is installed on the lower surface of the support plate, and a rack is slidably connected to the inner surface of the fixing frame. A compression spring is elastically connected between the rack and the fixing frame. Meanwhile, a reset rod is installed on the rear side of the outer surface of the rack, and the reset rod is nested in the inner surface of the sensor housing.

[0009] Preferably, the support plate and the balance block form an integrated structure, and the balance block and the compression rod are symmetrically arranged. The compression rod and the balance block are made of the same material and have the same weight. At the same time, the fixing frame forms an elastic sliding structure with the rack through the compression spring, and the rack forms a nested telescopic structure with the sensor housing through the reset rod.

[0010] Preferably, the engaging mechanism further includes an elastic element mounted on the upper surface of the rack, and a locking block mounted on the upper surface of the elastic element. A locking member is engaged with the outer surface of the locking block, and the locking member is positioned and mounted on the upper surface of the fixed frame. Meanwhile, a pressing rod is provided on the upper surface of the elastic element. The rack, the elastic element, and the locking block form an integrated structure, and the elastic element and the locking member form an elastic engaging structure through the locking block and the locking member. The elastic element and the pressing rod form a pressing structure.

[0011] Preferably, the rack and gear disk form a meshing structure, and the upper surface of the gear disk is rotatably connected to a connecting rod via an off-axis. The upper surface of the connecting rod is rotatably connected to a moving rod, and a pressing block is installed at the outer end of the moving rod. A limiting frame is slidably connected to the outer surface of the pressing block, and the limiting frame is fitted and installed against the outer side of the fixed frame. The gear disk forms a circumferential linear movement structure through the connecting rod and the moving rod, and the moving rod and the pressing block form an integral structure. The pressing block and the limiting frame form a telescopic structure, and the limiting frame is embedded in the outer surface of the fixed frame.

[0012] Preferably, a connecting block is installed on the outer surface of the extrusion block, and a tension spring is elastically connected between the connecting block and the limiting frame, and a roller is rotatably connected to the upper surface of the extrusion block; the extrusion block and the connecting block form an elastic tension structure through the tension spring, and the extrusion block and the roller form a nested rotation structure, and the roller and the sensor body form an extrusion structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This weighing digital sensor designed to prevent damage from overloading features a sensor body that is easily and stably supported. It works in conjunction with a magnetically assembled support plate and weighing surface to perform weighing operations. By cooperating with the extrusion rod and the sandalwood component, the position of the rack is controlled, thereby controlling the extrusion block to be in a pressure-contracted state. When the weight exceeds the limit, the extrusion elastic component is disengaged and elastically expanded, controlling the extrusion block to prevent damage to the sensor body from overloading.

[0015] 2. This digital weighing sensor designed to prevent damage from overloading is equipped with a magnetic positioning mechanism. The magnetic components can be nested and assembled with the support base assembled on the sensor body, thereby controlling the stability of the support plate and positioning the symmetrical plane of the support plate to improve weighing stability. In addition, the protective sliding strip between the support plate and the sensor housing controls the stability of the support plate during use, reduces the entry of impurities that affect the weighing, and improves the weighing accuracy.

[0016] 3. This weighing digital sensor designed to prevent damage from overload is equipped with a fixed frame for easy positioning and assembly. This frame, along with a locking mechanism assembled with elastic components, controls the position of the rack after movement and adjusts the position of the compression block. This provides rapid mechanical support for the sensor body during overload measurements. Furthermore, the elastic locking mechanism allows for control of the rack's locking position through the engagement of the elastic component mounted on the rack and its locking block. When the support plate is overloaded, the compression rod presses against the end of the elastic component, controlling its unlocking and locking state. This controls the elastic movement of the rack, driving the gear disc to rotate for support and protection. Moreover, the rotation of the gear disc controls the position of the connecting rod and the moving rod. The tension spring between the connecting block and the limit frame, which is mounted with the compression block, controls the contact support between the roller nested in the compression block and the sensor body, preventing damage from overload. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the sensor housing of this utility model;

[0018] Figure 2 This is a half-section three-dimensional structural diagram of the sensor housing of this utility model;

[0019] Figure 3 This is a half-section three-dimensional structural diagram of the sensor body of this utility model;

[0020] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the fixing frame of this utility model;

[0021] Figure 5 This is a partial cross-sectional perspective view of the gear disk of this utility model.

[0022] Figure 6 This is a partial cross-sectional three-dimensional structural diagram of the extrusion block of this utility model.

[0023] In the diagram: 1. Sensor housing; 2. Base; 3. Sensor body; 4. Sensing element; 5. Support base; 6. Magnetic suction assembly; 7. Support plate; 8. Protective slide bar; 9. Weighing surface; 10. Compression rod; 11. Balance block; 12. Fixing frame; 13. Rack; 14. Compression spring; 15. Reset rod; 16. Elastic element; 17. Locking block; 18. Locking component; 19. Gear disk; 20. Connecting rod; 21. Moving rod; 22. Compression block; 23. Limiting frame; 24. Connecting block; 25. Tension spring; 26. Roller. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-6 The present invention provides the following technical solution: a digital weighing sensor for preventing damage from overloading, comprising a sensor housing 1 and a base 2 mounted on the inner surface of the sensor housing 1, wherein a sensor body 3 is mounted on the upper surface of the base 2, and a sensitive element 4 is attached to the middle section of the upper surface of the sensor body 3.

[0026] Example 1: As Figures 1-6 The technical solution shown in this utility model provides the following technical solution: a digital weighing sensor for preventing damage from overloading, comprising: a support base 5, installed on the left end of the upper surface of the sensor body 3, and the support base 5 is connected to a support plate 7 via a magnetic positioning mechanism; as shown in the figure. Figure 4 , Figure 5 and Figure 6 As shown, the compression rod 10 is installed on the lower surface of the support plate 7, and a fixing bracket 12 is installed on the left side of the inner surface of the sensor housing 1. A rack 13 is elastically connected to the inner surface of the fixing bracket 12. The upper surface of the rack 13 is connected to the lower side of the compression rod 10 via an elastic engagement mechanism. A gear disk 19 is meshed with the outer surface of the rack 13, and a compression block 22 is linearly connected to the outer surface of the gear disk 19. The compression block 22 is positioned under the sensor body 3 for support and protection when the sensor body 3 is overweight. Figure 2 and Figure 3 As shown, the magnetic positioning mechanism also includes a magnetic suction component 6 embedded in the support base 5, and a support plate 7 is connected to the upper surface of the magnetic suction component 6. A protective slide bar 8 is connected between the support plate 7 and the sensor housing 1. At the same time, a weighing surface 9 is nested on the upper surface of the support plate 7. The support base 5 and the support plate 7 form a magnetic suction docking structure through the magnetic suction component 6, and the support plate 7 and the sensor housing 1 form a lifting and sealing sliding structure through the protective slide bar 8. The support plate 7 and the weighing surface 9 form a nested structure.

[0027] In use, a base 2 is installed on the middle right side of the sensor housing 1, and the sensor body 3 and the sensitive element 4 are stably installed on the base 2 for weighing. A support base 5 is installed on the top weighing end of the sensor body 3. The support plate 7 is connected to the magnetic suction assembly 6 nested in the support base 5. The support plate 7 is raised and lowered inside the sensor housing 1 to weigh items of different sizes and weights. When the sensor housing 1 moves, the support plate 7 will slide with the protective sliding strips 8 assembled separately by the two to reduce dust entry and friction, thus avoiding affecting the accuracy of weighing. When the support plate 7 is in use, the nested weighing surface 9 is assembled to improve the stability of the placed product.

[0028] Example 2: Figure 4 and Figure 5 The technical solution shown, based on Embodiment 1, also discloses a method for storing energy in the anti-overweight mechanism. Through the cooperation of an elastic mechanism and an unlocking mechanism, mechanical protection is provided when overweight occurs, solving the problem of digital sensors being easily damaged by overweight. The specific details are as follows: A balance block 11 is installed on the lower surface of the support plate 7, and a rack 13 is slidably connected to the inner surface of the fixing frame 12. A compression spring 14 is elastically connected between the rack 13 and the fixing frame 12. Simultaneously, a reset rod 15 is installed on the rear side of the outer surface of the rack 13, and the reset rod 15 is nested within the inner surface of the sensor housing 1. Please refer to... Figure 4 The support plate 7 and the balance block 11 form an integrated structure, and the balance block 11 and the compression rod 10 are symmetrically arranged. The compression rod 10 and the balance block 11 are made of the same material and have the same weight. Meanwhile, the fixing frame 12 forms an elastic sliding structure with the rack 13 through the compression spring 14, and the rack 13 forms a nested telescopic structure with the sensor housing 1 through the reset rod 15.

[0029] In use, the compression reset rod 15 drives the rack 13 to slide within the inner surface of the fixed frame 12, thereby controlling the compression spring 14 between the fixed frame 12 and the rack 13 to contract and store energy. The compression rod 10 installed on the support plate 7 is effectively located at the upper end of the elastic element 16, and the balance block 11 is evenly and symmetrically assembled on the lower surface of the support plate 7 to control the stability of the support plate 7 and facilitate energy storage for later protection and stability.

[0030] Example 3: Figure 4 and Figure 6The technical solution shown, based on Embodiment 2, further discloses a limiting movement for the anti-overweight mechanism, and in conjunction with it, energy storage, facilitating mechanical support and protection of the digital sensor during overweight conditions, thus solving the problem of digital sensors being easily damaged by overweight. The specific details are as follows: The engaging mechanism connection also includes an elastic element 16 mounted on the upper surface of the rack 13, and a locking block 17 mounted on the upper surface of the elastic element 16. A locking member 18 is engaged with the outer surface of the locking block 17, and the locking member 18 is positioned and mounted on the upper surface of the fixed frame 12. Simultaneously, a pressing rod 10 is provided on the upper surface of the elastic element 16. The rack 13, the elastic element 16, and the locking block 17 form an integrated structure, and the elastic element 16 forms an elastic engaging structure with the locking member 18 through the locking block 17, and the elastic element 16 and the pressing rod 10 form a pressing structure. Figure 4 and Figure 5 As shown, the rack 13 and the gear disk 19 form a meshing structure. A connecting rod 20 is rotatably connected to the upper surface of the gear disk 19 via an off-axis. A moving rod 21 is rotatably connected to the upper surface of the connecting rod 20. A pressing block 22 is installed at the outer end of the moving rod 21, and a limiting frame 23 is slidably connected to the outer surface of the pressing block 22. The limiting frame 23 is fitted against the outer side of the fixed frame 12. The gear disk 19 forms a circumferential linear movement structure with the connecting rod 20 and the moving rod 21. The moving rod 21 and the pressing block 22 form an integrated structure, and the pressing block 22 and the limiting frame 23 form a telescopic structure. The limiting frame 23 is embedded in the outer surface of the fixed frame 12. Please refer to [link to relevant documentation]. Figure 6 A connecting block 24 is installed on the outer surface of the extrusion block 22, and a tension spring 25 is elastically connected between the connecting block 24 and the limiting frame 23. A roller 26 is rotatably connected to the upper surface of the extrusion block 22. The extrusion block 22 and the connecting block 24 form an elastic tension structure through the tension spring 25, and the extrusion block 22 and the roller 26 form a nested rotation structure. The roller 26 and the sensor body 3 form an extrusion structure.

[0031] When the rack 13 is sliding and storing energy, the locking block 17 assembled from the elastic element 16 mounted on the upper side of the rack 13 is stably engaged with the locking element 18 assembled on the lower side of the fixed frame 12. Simultaneously, as the rack 13 moves, the meshing adjusting gear disk 19 is effectively controlled to rotate within the inner surface of the fixed frame 12. This drives the connecting rod 20 assembled on the gear disk 19, causing the pressing block 22 mounted on the rotating adjusting moving rod 21 to slide away from the lower side of the sensor body 3 on the inner surface of the limiting frame 23. Furthermore, the connecting block 24 mounted on the pressing block 22 causes the tension spring 25 between it and the limiting frame 23 to unfold. The stability of the movement of the squeezing block 22 is controlled, and the engagement between the locking block 17 and the locking piece 18 is controlled. The position of the squeezing block 22 is controlled, and when the support plate 7 is overloaded, the installed squeezing rod 10 will move down and squeeze the end of the elastic member 16, causing the locking block 17 installed on the upper side of the elastic member 16 to disengage from the locking piece 18. The position of the squeezing block 22 can be controlled by the elasticity of the squeezing spring 14 and the elasticity of the tension spring 25. Thus, the roller 26 nested in the squeezing block 22 contacts the lower side of the weighing end of the sensor body 3, supporting the weighing end of the sensor body 3, improving the support stability, and avoiding damage to the weighing end under overload.

[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A digital weighing sensor for preventing damage from overloading, comprising a sensor housing (1) and a base (2) mounted on the inner surface of the sensor housing (1), wherein a sensor body (3) is mounted on the upper surface of the base (2), and a sensitive element (4) is attached to the middle section of the upper surface of the sensor body (3); Its features are, include: A support base (5) is installed on the left end of the upper surface of the sensor body (3), and the support base (5) is connected to a support plate (7) through a magnetic positioning mechanism; A squeezing rod (10) is installed on the lower surface of the support plate (7), and a fixing frame (12) is installed on the left side of the inner surface of the sensor housing (1). A rack (13) is elastically connected to the inner surface of the fixing frame (12). At the same time, the upper surface of the rack (13) is connected to the lower side of the squeezing rod (10) through an elastic engagement mechanism. A gear disk (19) is meshed with the outer surface of the rack (13), and a squeezing block (22) is linearly connected to the outer surface of the gear disk (19). The squeezing block (22) is set on the lower side of the sensor body (3) for support and protection when the sensor body (3) is overweight.

2. The digital weighing sensor for preventing damage from overloading according to claim 1, characterized in that: The magnetic positioning mechanism also includes a magnetic suction component (6) embedded in the support base (5), and a support plate (7) is connected to the upper surface of the magnetic suction component (6). A protective slide strip (8) is connected between the support plate (7) and the sensor housing (1). At the same time, a weighing surface (9) is nested on the upper surface of the support plate (7). The support base (5) and the support plate (7) form a magnetic suction docking structure through the magnetic suction component (6). The support plate (7) and the sensor housing (1) form a lifting and sealing sliding structure through the protective slide strip (8). The support plate (7) and the weighing surface (9) form a nested structure.

3. The digital weighing sensor for preventing damage from overloading according to claim 1, characterized in that: A balance block (11) is installed on the lower surface of the support plate (7), and a rack (13) is slidably connected to the inner surface of the fixing frame (12). A compression spring (14) is elastically connected between the rack (13) and the fixing frame (12). Meanwhile, a reset rod (15) is installed on the rear side of the outer surface of the rack (13), and the reset rod (15) is nested in the inner surface of the sensor housing (1).

4. A digital weighing sensor for preventing damage from overloading according to claim 1, characterized in that: The support plate (7) and the balance block (11) form an integrated structure, and the balance block (11) and the compression rod (10) are symmetrically arranged. The compression rod (10) and the balance block (11) are made of the same material and have the same weight. Meanwhile, the fixing frame (12) forms an elastic sliding structure with the rack (13) through the compression spring (14), and the rack (13) forms a nested telescopic structure with the sensor housing (1) through the reset rod (15).

5. A digital weighing sensor for preventing damage from overloading according to claim 1, characterized in that: The engagement mechanism also includes an elastic element (16) mounted on the upper surface of the rack (13), and a locking block (17) is mounted on the upper surface of the elastic element (16). The outer surface of the locking block (17) is engaged with a locking element (18), and the locking element (18) is positioned and mounted on the upper surface of the fixed frame (12). At the same time, a pressing rod (10) is provided on the upper surface of the elastic element (16). The rack (13), the elastic element (16), and the locking block (17) form an integrated structure. The elastic element (16) and the locking element (18) form an elastic engagement structure through the locking block (17), and the elastic element (16) and the pressing rod (10) form a pressing structure.

6. A digital weighing sensor for preventing damage from overloading according to claim 1, characterized in that: The rack (13) and the gear disk (19) form a meshing structure, and the upper surface of the gear disk (19) is rotatably connected to the connecting rod (20) via the off-axis, and the upper surface of the connecting rod (20) is rotatably connected to the moving rod (21). At the same time, the outer surface end of the moving rod (21) is equipped with a pressing block (22), and the limiting frame (23) is slidably connected to the outer surface of the pressing block (22), and the limiting frame (23) is fitted and installed on the outer surface side of the fixed frame (12). The gear disk (19) forms a circumferential linear movement structure through the connecting rod (20) and the moving rod (21), and the moving rod (21) and the pressing block (22) form an integrated structure, and the pressing block (22) and the limiting frame (23) form a telescopic structure. At the same time, the limiting frame (23) is embedded in the outer surface of the fixed frame (12).

7. A digital weighing sensor for preventing damage from overloading according to claim 1, characterized in that: A connecting block (24) is installed on the outer surface of the extrusion block (22), and a tension spring (25) is elastically connected between the connecting block (24) and the limiting frame (23). A roller (26) is rotatably connected to the upper surface of the extrusion block (22). The extrusion block (22) and the connecting block (24) form an elastic tension structure through the tension spring (25), and the extrusion block (22) and the roller (26) form a nested rotation structure. The roller (26) and the sensor body (3) form an extrusion structure.

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