Quick combination and locking mechanism for a multi-range weight

Abstract

The utility model discloses a kind of quick combination and locking mechanism of multi-range weight, belong to weight technical field. Including cylinder, end cover;Several weights are arranged in cylinder inside up and down and are stacked, and adjustment groove is set in weight;Limiting cylinder is inserted into cylinder, and limiting cylinder is located in the adjustment groove of all weights, and can limit the rotation of weight, which is fixedly connected to end cover;Lifting mechanism is arranged in limiting cylinder, locking plate is fixedly connected with lifting mechanism, and locking plate is pressed on the uppermost weight upper surface. Through the radial anti-rotation cooperation of limiting cylinder and weight adjustment groove, and the axial compression of screw drive locking plate, the quick, stable integrated locking of multiple weights is realized, and the combination efficiency and handling safety are greatly improved.

Description

Technical Field

[0001] This utility model provides a rapid combination and locking mechanism for multi-range weights, belonging to the field of weight technology, and particularly relates to a combination weight for coarse measurement of large mass. Background Technology

[0002] In the field of weighing and metrology, combined weights are widely used in key processes such as calibration, testing, and value transfer. Currently, operators typically manually select multiple individual weights and stack them to meet different measurement ranges, based on the required mass value. This traditional method relies on the stacking stability of the weights themselves and the operator's meticulous handling to achieve temporary combinations, and is currently the basic and common application mode in verification institutions.

[0003] However, in practical operation, when multiple weights need to be combined to form a large overall mass, existing technologies have significant shortcomings: they lack a dedicated mechanism that can reliably and quickly connect and lock multiple independent weights into a stable whole. During the handling, transfer, or overall placement of the combined weights, the weights rely solely on simple stacking contact, making them highly susceptible to slippage, scattering, or even falling due to shaking, tilting, or slight collisions. This not only causes inconvenience and affects work efficiency but may also damage the measurement accuracy due to accidental collisions or falls, and it fails to meet the requirements for stable and reliable overall operation of the combined weights. Therefore, an innovative locking mechanism is urgently needed to solve this practical problem. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing technology lacks a dedicated mechanism for quickly connecting and locking multiple weights, so as to be suitable for handling and transferring them after assembly.

[0005] To solve the above problems, the proposed technical solution is as follows: a rapid combination and locking mechanism for multi-range weights, comprising a cylinder and an end cap, wherein a detachable end cap is fixedly connected to the upper end of the cylinder; a plurality of weights are stacked vertically inside the cylinder, and the weights have adjustment grooves inside; further comprising: A limiting cylinder and a locking plate; the limiting cylinder, which is fixedly connected to the end cap, is inserted into the cylinder body and can limit the rotation of the weights. The limiting cylinder is located in the adjustment slots of all the weights; a lifting mechanism is provided inside the limiting cylinder, and the locking plate is fixedly connected to the lifting mechanism, with the locking plate pressing on the upper surface of the uppermost weight.

[0006] Preferably, the cylinder is cylindrical, the weight is cylindrical, and the diameter of the weight corresponds to the inner diameter of the cylinder.

[0007] Preferably, the lifting mechanism includes a screw and a lifting block; the screw is rotatably disposed inside the limiting cylinder, and the lifting block is threadedly connected to the screw; a guide groove is provided on the side wall of the limiting cylinder, and the lifting block passes through the guide groove and is fixedly connected to the locking plate; the lifting block is a cuboid structure corresponding to the inner wall of the limiting cylinder.

[0008] Preferably, the operating end of the screw is located outside the end cover, and the operating end of the screw is provided with a screw that can fix the operating end of the screw to the limiting cylinder.

[0009] Preferably, the limiting cylinder is square, corresponding to the inner wall of the adjustment groove, the limiting cylinder fits against the inner wall of the adjustment groove, and an elastic pad is provided on the outer wall of the limiting cylinder; an elastic pad is provided on the lower surface of the locking plate.

[0010] Preferably, both the end cap and the weight are fixedly connected with lifting hooks, and the bottom of the weight is provided with a receiving groove for accommodating the lifting hooks.

[0011] Preferably, the end cap is fixedly connected to the cylinder by screws, and a sealing gasket is provided below the end cap.

[0012] The beneficial effects of this utility model are: 1. This application utilizes a cylindrical body to support stacked weights, providing initial positioning for the weights. Simultaneously, a limiting cylinder is installed on the end cap; by inserting the limiting cylinder into the adjustment slots of all weights, the circumferential rotation of the weights is effectively constrained, preventing mutual rotation between weights. A locking plate is also installed on the limiting cylinder to achieve axial fastening, preventing the weights from moving up and down due to vibration during handling and transfer. The combination of the limiting cylinder and adjustment slots allows for quick and convenient combination and locking of all weights, greatly improving the efficiency of combination and locking.

[0013] 2. The locking plate is fixedly connected to the lifting mechanism. The position of the locking plate can be adjusted using the lifting mechanism, thus adapting to different heights when stacking different quantities of weights. Attached Figure Description

[0014] Figure 1 This is a perspective view of a rapid assembly and locking mechanism for multi-range weights according to the present invention.

[0015] Figure 2 This is a cross-sectional view of the cylinder of a rapid combination and locking mechanism for multi-range weights according to this utility model.

[0016] Figure 3 This is a diagram showing the internal structure of the cylinder of a rapid combination and locking mechanism for multi-range weights according to this utility model.

[0017] Figure 4 This is an exploded view of the connection of a rapid assembly and locking mechanism for multi-range weights according to this utility model.

[0018] Figure 5 This is a cross-sectional view of the limiting cylinder of a rapid combination and locking mechanism for multi-range weights according to this utility model.

[0019] Figure 6 This is an exploded view of the connection of the weights in the rapid assembly and locking mechanism of a multi-range weight according to this utility model.

[0020] 1. Cylinder body; 2. End cap; 3. Weight; 4. Limiting cylinder; 5. Locking plate; 6. Guide groove; 7. Adjusting groove; 8. Screw; 9. Lifting block; 10. Lifting hook; 11. Receiving groove. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Reference Appendix Figure 1 , 2 A rapid combination and locking mechanism for multi-range weights includes a cylindrical body 1 and an end cap 2. The detachable end cap 2 is fixedly connected to the upper end of the cylindrical body 1. The end cap 2 is fixedly connected to the cylindrical body 1 by screws, and a sealing gasket is provided below the end cap 2 to effectively isolate dust and moisture, providing a reliable protective environment for the internal weight set 3, and ensuring the long-term stability of the metrological standard during storage and transportation. Several weights 3 are stacked vertically inside the cylindrical body 1. The cylindrical body 1 is cylindrical, and the weights 3 are cylindrical, with the diameter of the weights 3 corresponding to the inner diameter of the cylindrical body 1. The arrangement of the cylindrical body 1 achieves initial circumferential limiting of the weights 3, which is the basis for subsequent combination and locking of the weights 3.

[0023] The weight 3 has an adjustment groove 7 inside. After the weight 3 is cast or machined, there will inevitably be a slight manufacturing error between its actual mass and its nominal value. The adjustment groove is an operating window for making this precise correction: If the weight is too heavy, a small amount of material can be removed from the inside of the weight using precision tools (such as a miniature drill bit or milling cutter) through the adjustment groove, reducing its mass to the standard value. If the weight is too light, a metal material of suitable density (such as lead shavings or copper pillars) can be added to the adjustment groove 7, and then it can be firmly sealed and fixed to increase its mass to the standard value.

[0024] Reference Appendix Figure 3 , 4The limiting cylinder 4, which is fixedly connected to the end cap 2, is inserted into the cylinder 1 and can limit the rotation of the weights 3. The limiting cylinder 4 is located in the adjustment slots 7 of all the weights 3. A lifting mechanism is provided inside the limiting cylinder 4. The locking plate 5 is fixedly connected to the lifting mechanism and presses on the upper surface of the uppermost weight 3. The inherent functional structure of the adjustment slots 7 on the weights 3 is creatively utilized. The limiting cylinder 4 is precisely inserted into the adjustment slots 7 of all the weights 3, and the channel originally used for mass adjustment is converted into a slot to achieve radial anti-rotation. Functional reuse is achieved, and there is no need to process additional special locking structures on the weights 3, so as to maintain the integrity of the weights 3 as a standard to the greatest extent.

[0025] Reference Appendix Figure 5 The lifting mechanism includes a screw 8 and a lifting block 9. The screw 8 is rotatably disposed inside the limiting cylinder 4, and the lifting block 9 is threadedly connected to the screw 8. A guide groove 6 is provided on the side wall of the limiting cylinder 4, and the lifting block 9 passes through the guide groove 6 and is fixedly connected to the locking plate 5. The lifting block 9 is a cuboid structure corresponding to the inner wall of the limiting cylinder 4. When the screw 8 is rotated, the lifting block 9 moves vertically along the guide groove 6 under the drive of the screw, which drives the locking plate 5 to press down or rise smoothly, thereby pressing and fixing the assembled weight 3. The operating end of the screw 8 is located outside the end cover 2, and the operating end of the screw 8 is provided with a screw that can fix the operating end of the screw 8 to the limiting cylinder 4. Tightening the screw can prevent the screw 8 from slightly reversing and loosening due to accidental collision or vibration, thus achieving anti-loosening protection and ensuring the absolute stability of the locked state under long-term use or complex working conditions.

[0026] Reference Appendix Figure 4 The limiting cylinder 4 is square, corresponding to the inner wall of the adjusting groove 7. The limiting cylinder 4 fits snugly against the inner wall of the adjusting groove 7, and an elastic pad is provided on the outer wall of the limiting cylinder 4; an elastic pad is provided on the lower surface of the locking plate 5. By setting up cushioning materials such as elastic pads, surface scratches or bumps caused by rigid contact can be prevented, providing a flexible protective barrier for the precision weight 3.

[0027] Reference Appendix Figure 5 , 6 Both the end cap 2 and the weight 3 are fixedly connected with lifting hooks 10, and the bottom of the weight 3 is provided with a receiving groove 11 for accommodating the lifting hooks 10. When the assembly is in the locked state, it can be lifted or moved as a whole through the lifting hooks 10 on the end cap 2; when multiple assemblies are stacked, the receiving groove 11 at the bottom of the upper assembly weight 3 can be accurately fitted into the lifting hooks 10 of the lower assembly weight 3 to achieve stable vertical stacking and avoid the lifting hooks 10 on the weight 3 from affecting the stacking.

[0028] It should be noted that the mass of all parts, including cylinder 1, end cap 2, screws, and limiting cylinder 4, has been precisely calculated to ensure the overall mass of the combined mechanism remains constant. Furthermore, the combined weights involved in this application are for coarse measurement of large objects; minor wear during use is insufficient to affect the overall measurement results.

[0029] The principle of this utility model When using this application, the first step is to prepare the assembly. (See attached document for reference.) Figure 4 With end cap 2 separated from cylinder 1, select the appropriate number of weights 3 according to the required total mass. Stack all weights 3 sequentially inside cylinder 1. During placement, ensure that the adjustment grooves 7 on the side walls of each weight 3 are vertically aligned. Next, close end cap 2 onto the top of cylinder 1 and initially secure it with screws. At this point, the square limiting cylinder 4 fixed below end cap 2 should be precisely inserted into the continuous vertical channel formed by the adjustment grooves 7 of all weights 3, thereby radially constraining each weight 3 and preventing relative rotation. (Refer to Appendix) Figure 1-3 .

[0030] Subsequently, axial locking and overall fixation are performed. (See attached document) Figure 5 Rotate the operating end of the screw 8 located above the end cap 2. This drives the lifting block 9 inside the limiting cylinder 4 and the locking plate 5 fixed thereto to move smoothly downwards along the guide groove 6 via threaded transmission. The locking plate 5 continues to press down until the elastic pad on its lower surface is tightly pressed against the upper surface of the top weight 3, thereby pressing all the stacked weights 3 together axially. Finally, tighten the locking screw on the operating end of the screw 8 to prevent the screw 8 from accidentally reversing and loosening. At this point, the set of weights 3 is reliably locked in both the radial and axial directions and can be safely transported, transferred, or stacked for storage using the lifting hook 10 on the end cap 2.

[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A rapid combination and locking mechanism for multi-range weights, characterized in that: Includes a cylindrical body (1) and an end cap (2), the detachable end cap (2) being fixedly connected to the upper end of the cylindrical body (1); several weights (3) are stacked inside the cylindrical body (1), and the weights (3) have adjustment grooves (7); also includes: Limiting cylinder (4) and locking plate (5); The limiting cylinder (4) fixedly connected to the end cap (2) is inserted into the cylinder (1) and the limiting cylinder (4) that can limit the rotation of the weight (3) is located in the adjustment groove (7) of all the weights (3); The limiting cylinder (4) is provided with a lifting mechanism, the locking plate (5) is fixedly connected to the lifting mechanism, and the locking plate (5) presses on the upper surface of the uppermost weight (3).

2. The rapid combination and locking mechanism for multi-range weights according to claim 1, characterized in that: The cylinder (1) is cylindrical, the weight (3) is cylindrical, and the diameter of the weight (3) corresponds to the inner diameter of the cylinder (1).

3. The rapid combination and locking mechanism for multi-range weights according to claim 1, characterized in that: The lifting mechanism includes a screw (8) and a lifting block (9); the screw (8) is rotatably disposed inside the limiting cylinder (4), and the lifting block (9) is threadedly connected to the screw (8); the side wall of the limiting cylinder (4) is provided with a guide groove (6), and the lifting block (9) passes through the guide groove (6) and is fixedly connected to the locking plate (5); the lifting block (9) is a cuboid structure corresponding to the inner wall of the limiting cylinder (4).

4. The rapid combination and locking mechanism for multi-range weights according to claim 3, characterized in that: The operating end of the screw (8) is located outside the end cover (2), and the operating end of the screw (8) is provided with a screw that can fix the operating end of the screw (8) to the limiting cylinder (4).

5. The rapid combination and locking mechanism for multi-range weights according to claim 1, characterized in that: The limiting cylinder (4) is square and corresponds to the inner wall of the adjustment groove (7). The limiting cylinder (4) fits against the inner wall of the adjustment groove (7), and the outer wall of the limiting cylinder (4) is provided with an elastic pad. The lower surface of the locking plate (5) is provided with an elastic pad.

6. The rapid combination and locking mechanism for multi-range weights according to claim 1, characterized in that: Both the end cap (2) and the weight (3) are fixedly connected with lifting hooks (10), and the bottom of the weight (3) is provided with a receiving groove (11) for accommodating the lifting hooks (10).

7. The rapid combination and locking mechanism for multi-range weights according to claim 1, characterized in that: The end cap (2) is fixedly connected to the cylinder (1) by screws, and a sealing gasket is provided below the end cap (2).

Images