Explosion-proof load cell

Abstract

The utility model discloses an explosion -proof weighing sensor, include: casing, weighing sensor unit is fixedly arranged in the casing, bearing assembly contains the weighing plate of detachable connection in the top of weighing sensor unit, plug -in guide mechanism includes the plug -in structure of setting in the top of weighing sensor unit and the adaptive plug -in spare of weighing plate connection, the adaptive plug -in spare is connected with plug -in structure through elastic rolling component, support adjusting mechanism contains at least a pair of articulated in casing's support unit, the support unit is connected with the bottom of weighing plate through detachable connection mechanism, the detachable connection mechanism contains spacing locking assembly and elastic reset component, realizes the quick assembly of support unit. The utility model adopts three -level buffer structure: the common effect of the joint action under the rolling buffer + elastic support + articulated adjustment reduces the impact influence, modular design realizes quick assembly maintenance, and double locking mechanism promotes explosion -proof security.

Description

Technical Field

[0001] This utility model belongs to the field of industrial weighing technology, and in particular relates to explosion-proof weighing sensors. Background Technology

[0002] A load cell is a type of force sensor used on weighing instruments.

[0003] Explosion-proof load cells are placed on a weighing plate to facilitate the weighing of objects. However, it is not easy to ensure that the bottom edges of the weighing plate are at the same level, which affects the weighing results. Utility Model Content

[0004] This utility model addresses the problems existing in the prior art by proposing the following technical solution:

[0005] Explosion-proof load cells include:

[0006] case;

[0007] The weighing sensing unit is fixedly installed inside the housing;

[0008] The load-bearing component includes a weighing plate that is detachably connected to the top of the weighing sensing unit;

[0009] The plug-in guide mechanism includes a plug-in structure disposed on the top of the weighing sensing unit and an adapter plug-in component connected to the weighing plate. The adapter plug-in component is connected to the plug-in structure through an elastic rolling component.

[0010] The support adjustment mechanism includes at least one pair of support units hinged to the housing, the support units being connected to the bottom of the weighing plate via a detachable connection mechanism;

[0011] The detachable connection mechanism includes a limit locking component and an elastic reset component, enabling quick assembly and disassembly of the support unit.

[0012] As a preferred embodiment of the above technical solution, the elastic rolling assembly includes: elastic receiving cavities symmetrically arranged on both sides of the adapter connector;

[0013] The rolling element is telescopically disposed within the elastic receiving cavity by means of an elastic support member;

[0014] The guide rail assembly is arranged parallel to the two side walls of the elastic receiving cavity and slides in cooperation with the rolling element support.

[0015] As a preferred embodiment of the above technical solution, the elastic support is a butterfly spring assembly, and the guide rail assembly includes a T-shaped rail and a matching slider structure.

[0016] As a preferred embodiment of the above technical solution, the detachable connection mechanism includes: a plug-in rod, which is vertically fixed to the bottom end of the support unit;

[0017] Hinged base, pivotally connected to the top of the housing;

[0018] A limiting through hole is provided through the hinged base;

[0019] The elastic locking assembly includes a laterally sliding limit pin, a linkage operating component, and a reset spring mechanism disposed on the side wall of the support unit.

[0020] As a preferred embodiment of the above technical solution, the reset spring mechanism includes: a bidirectional sliding assembly symmetrically arranged in a mounting groove on the side wall of the support unit; the bidirectional sliding assembly includes: a slide rail symmetrically opened in the mounting groove, and a sliding block is slidably connected in the slide rail, the sliding block being mounted on an elastic connecting rod;

[0021] The elastic connecting rod is connected to the limiting pin at both ends via the bidirectional sliding assembly;

[0022] A pressure buffer pad is installed on the inner wall of the linkage operating component.

[0023] As a preferred embodiment of the above technical solution, the support adjustment mechanism further includes:

[0024] The horizontal sliding assembly includes a guide rod disposed at the bottom of the weighing plate, a slidingly engaged slider, and a connecting part hinged to the top of the support unit.

[0025] As a preferred embodiment of the above technical solution, it further includes: a positioning reinforcement structure disposed at the joint between the adapter and the connector structure, comprising wedge-shaped protrusions and grooves that cooperate with each other.

[0026] The beneficial effects of this utility model are as follows:

[0027] In this application, a three-level buffer structure is adopted: the combined effect of rolling buffer, elastic support and hinge adjustment reduces the impact; the modular design enables quick assembly and disassembly for maintenance; and the dual locking mechanism enhances explosion-proof safety. Attached Figure Description

[0028] Figure 1 The diagram shown is a frontal view of the internal structure of an embodiment of the present invention.

[0029] Figure 2 The embodiments of the present invention shown provide Figure 1 Enlarged structural diagram at point A in the middle;

[0030] Figure 3 The embodiments of the present invention shown provide Figure 1 Enlarged structural diagram at point B.

[0031] Legend:

[0032] 1. Housing; 2. Weighing sensor; 3. Plug-in structure; 4. Plug-in component; 5. Positioning reinforcement structure; 6. Weighing plate; 7. Elastic receiving cavity; 8. Elastic support component; 9. Roller body support; 10. Rolling element; 11. Slider structure; 12. Guide slide rail assembly; 13. Second slot; 14. Guide slide rod; 15. Slider; 16. Support unit; 17. Plug-in rod; 18. Hinge base; 19. Limit pin; 20. Linkage operation component; 21. Elastic connecting rod; 22. Sliding block; 23. Slide rail; 24. Return spring mechanism; 25. Mounting slot; 26. Pressure buffer pad. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0034] like Figure 1 , Figure 2 and Figure 3 As shown in the embodiment of this utility model, the explosion-proof weighing sensor includes a housing 1 and a weighing sensor 2 installed inside the housing 1. A plug-in structure 3 is provided at the top of the weighing sensor 2, and a plug-in component 4 is plugged into the plug-in structure 3 via a rolling mechanism. The plug-in component 4 is installed on a weighing plate 6, and a support unit 16 is slidably connected to the bottom of the weighing plate 6. The bottom of the support unit 16 is installed on the housing 1 via a disassembly and assembly mechanism. The weighing plate 6 is locked in place by bolts on the side wall while the plug-in component 4 is plugged into the weighing sensor 2, ensuring the stability of the installation between the weighing plate 6 and the weighing sensor 2. A positioning reinforcement structure 5 is plugged into the middle of the bottom of the plug-in component 4, and the bottom of the positioning reinforcement structure 5 is installed inside the plug-in structure 3. The plug-in connection between the positioning reinforcement structure 5 and the plug-in component 4 ensures the stability of the plug-in connection between the plug-in component 4 and the weighing sensor 2.

[0035] like Figure 1 and Figure 3As shown, the disassembly and assembly mechanism includes a plug rod 17 installed at the bottom of the support unit 16, which is inserted into the hinge base 18. The bottom end of the hinge base 18 is hinged to the outer shell 1. A limit pin 19 is inserted into the outer wall of the plug rod 17. The outer side of the limit pin 19 passes through the outer wall of the hinge base 18 and is installed on the linkage operation component 20. An elastic connecting rod 21 is installed on the inner wall of the linkage operation component 20 above the limit pin 19. A return spring mechanism 24 is connected to the elastic connecting rod 21. The return spring mechanism 24 is connected in the mounting groove 25, which is opened on the side wall of the support unit 16. Slide rails 23 are symmetrically opened in the mounting groove 25, and each slide rail 23 is slidably connected to a sliding block 22. The sliding blocks 22 are all installed on the elastic connecting rod 21. When the elastic potential energy of the return spring mechanism 24 is combined with the sliding action of the sliding blocks 22 and the slide rails 23, the linkage operation component 20 is pulled outward, causing the limit pin 19 to move outward to its maximum limit. After the value is measured, the plug rod 17 is inserted into the hinge base 18, and the linkage operation component 20 is released to complete the insertion and locking state between the limit pin 19, the plug rod 17, and the hinge base 18, thus completing the installation of the support unit 16. The inner wall of the linkage operation component 20 is glued with a pressure buffer pad 26, and the inner side of the pressure buffer pad 26 abuts against the outer wall of the support unit 16 and the hinge base 18. Under the protection of the pressure buffer pad 26, direct collision between the linkage operation component 20 and the hinge base 18 and the support unit 16 is avoided, preventing damage. The bottom end of the weighing plate 6 is symmetrically provided with a second slot 13, and a guide slide rod 14 is installed in the second slot 13. The outer wall of the guide slide rod 14 is slidably connected to a slider 15, and the bottom end of the slider 15 is hinged to the support unit 16. Under the sliding action of the guide slide rod 14 and the slider 15, combined with the supporting action of the support unit 16, the bottom end of the symmetrical weighing plate 6 is horizontally supported and maintained.

[0036] like Figure 1 and Figure 2As shown, the rolling mechanism includes elastic receiving cavities 7 symmetrically opened on the side walls of the connector 4, and elastic support members 8 are connected inside the elastic receiving cavities 7. The outer side of the elastic support members 8 is connected to the roller support 9. Rolling bodies 10 are rolledly embedded in the outer wall of the roller support 9. The outer wall of the rolling bodies 10 rolls against the inner wall of the connector structure 3. Guide slide rail assemblies 12 are symmetrically opened on the inner wall of the elastic receiving cavity 7, and slider structures 11 slide in each guide slide rail assembly 12. The slider structures 11 are all connected to the outer wall of the roller support 9. Under the rolling action of the rolling bodies 10, the friction between the connector 4 and the connector structure 3 can be reduced, so that the ease of insertion between the connector 4 and the connector structure 3 is guaranteed. At the same time, under the storage action of the elastic receiving cavity 7, the elastic potential energy of the elastic support members 8 and the sliding action of the slider structures 11 and the guide slide rail assembly 12 drive the rolling bodies 10 and the roller support 9 to be stored in the elastic receiving cavity 7, ensuring the convenience and efficiency of insertion between the connector 4 and the weighing sensor 2.

[0037] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. An explosion-proof weighing sensor, characterized in that, include: Shell (1); The weighing sensing unit (2) is fixedly installed inside the housing; The load-bearing component includes a weighing plate (6) that is detachably connected to the top of the weighing sensing unit; The plug-in guide mechanism includes a plug-in structure (3) disposed on the top of the weighing sensing unit (2) and an adapter plug-in component (4) connected to the weighing plate (6). The adapter plug-in component is connected to the plug-in structure through an elastic rolling component. The support adjustment mechanism includes at least one pair of support units (16) hinged to the housing, the support units (16) being connected to the bottom of the weighing plate (6) via a detachable connection mechanism; The detachable connection mechanism includes a limit locking component and an elastic reset component, enabling quick assembly and disassembly of the support unit (16).

2. The explosion-proof weighing sensor according to claim 1, characterized in that, The elastic rolling assembly includes: elastic receiving cavities (7) symmetrically arranged on both sides of the adapter plug (4); The rolling element (10) is telescopically disposed in the elastic receiving cavity (7) by means of the elastic support (8); The guide rail assembly (12) is arranged parallel to the two side walls of the elastic receiving cavity (7) and slides in cooperation with the rolling element support (9).

3. The explosion-proof weighing sensor according to claim 2, characterized in that, The elastic support (8) is a butterfly spring assembly, and the guide rail assembly includes a T-shaped rail and a matching slider structure (11).

4. The explosion-proof weighing sensor according to claim 1, characterized in that, The detachable connection mechanism includes: a plug rod (17), which is vertically fixed to the bottom end of the support unit (16); A hinged base (18) is pivotally connected to the top of the housing (1); A limiting through hole is provided through the hinged base; The elastic locking assembly includes a laterally sliding limit pin (19), a linkage operating element (20), and a reset spring mechanism (24) disposed on the side wall of the support unit (16).

5. The explosion-proof weighing sensor according to claim 4, characterized in that, The reset spring mechanism includes: a bidirectional sliding assembly symmetrically arranged in the mounting groove (25) on the side wall of the support unit (16); the bidirectional sliding assembly includes: a slide rail (23) symmetrically opened in the mounting groove (25), and a sliding block (22) is slidably connected in the slide rail (23), the sliding block (22) being mounted on the elastic connecting rod (21); The elastic connecting rod (21) is connected to the limiting pin (19) at both ends through the bidirectional sliding assembly; A pressure buffer pad (26) is provided on the inner wall of the linkage operation component (20).

6. The explosion-proof weighing sensor according to claim 1, characterized in that, The support adjustment mechanism also includes: The horizontal sliding assembly includes a guide slide rod (14) disposed at the bottom of the weighing plate (6), a slidingly engaged slider (15), and a connecting part hinged to the top of the support unit (16).

7. The explosion-proof weighing sensor according to claim 1, characterized in that, Also includes: The positioning reinforcement structure (5) is provided at the joint between the adapter plug (4) and the plug structure (3), and includes wedge-shaped protrusions and grooves that cooperate with each other.

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