An auxiliary device for rock density determination
By using auxiliary devices such as a support frame and a lifting mechanism, the problem of unstable human operation in rock density determination was solved, achieving stable sample suspension and rapid reading, improving measurement efficiency and reducing manpower consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA GEOLOGICAL SURVEY TIANJIN GEOLOGICAL SURVEY CENT (NORTH CHINA GEOLOGICAL TECH INNOVATION CENT)
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-02
AI Technical Summary
In existing methods for measuring rock density, human intervention leads to instability in the measurement process, making it difficult to quickly stabilize the reading, resulting in high manpower consumption and low efficiency.
Design an auxiliary device including a support frame and a lifting mechanism. The device is connected to the rock sample via a lifting rope. The lifting mechanism controls the lifting of the sample and is combined with an electronic balance for weighing. This ensures that the sample does not shake when suspended in water and provides a stable reading.
This method enables stable sample suspension during rock density determination, reduces manpower consumption, improves measurement efficiency, and ensures rapid and stable readings from the weighing device.
Smart Images

Figure CN224317465U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of geophysical exploration technology, and specifically to an auxiliary device for measuring rock density. Background Technology
[0002] Rock (ore) density data is an indispensable component of regional gravity surveys, large-scale gravity exploration, and airborne gravity surveys. It serves as an important basis for conducting method effectiveness analysis, topographic correction, Bouguer correction, and anomaly interpretation.
[0003] The main methods for determining the density of rocks (ores) include the balance method and the hydrometer method, both based on Archimedes' principle. The balance method has lower testing costs and requires less skill from the operator, making it more suitable for fieldwork in geology. The balance method is further divided into mechanical and electronic balance methods. In comparison, the electronic balance method is simpler and faster to operate, significantly improving testing efficiency. However, this method typically requires manual adjustment of the lifting rope to bring the sample to a state of natural contact with the bottom of the container and then to a suspended state. Because it is difficult to maintain stability manually or for extended periods, and the water in the container is difficult to stagnate, the balance struggles to stabilize for readings, resulting in increased manpower and testing delays. Therefore, it is necessary to develop an auxiliary device to complement this method, avoiding instability caused by human factors during the testing process, enabling the balance to stabilize for readings in the shortest possible time, improving testing efficiency, and reducing manpower consumption. Utility Model Content
[0004] The purpose of this invention is to provide an auxiliary device for rock density determination to solve the above-mentioned problems, so as to keep the sample in a stationary state during the rock (ore) density determination process, avoid the difficulty in stabilizing the balance due to instantaneous changes in external force, effectively reduce labor costs and greatly improve the determination efficiency.
[0005] To achieve the above objectives, this utility model provides the following solution:
[0006] An auxiliary device for determining rock density includes two support frames, a lifting mechanism for controlling the lifting and lowering of a rock sample is installed between the two support frames, a weighing device is provided between the two support frames, a container is placed on the weighing device, the top surface of the container has an opening, and the lifting mechanism is connected to the rock sample via a lifting rope.
[0007] Preferably, the lifting mechanism includes a take-up rod, the end of which is rotatably connected to two of the support frames. One end of the take-up rod passes through one of the support frames and is axially connected to a drive component. One end of the lifting rope is fixedly connected to the take-up rod and wound around it.
[0008] Preferably, the drive component includes a rocker arm that is fixedly connected to the take-up rod.
[0009] Preferably, the rocker arm includes a vertical rod and a horizontal rod, one end of the vertical rod is fixedly connected to the end of the take-up rod that extends out of the support frame, and the other end of the vertical rod is fixedly connected to the horizontal rod.
[0010] Preferably, the horizontal bar is a cylindrical structure.
[0011] Preferably, the weighing device is an electronic balance scale.
[0012] This utility model has the following technical effects:
[0013] When testing rock samples, the rock sample is secured with a lifting rope and then released by a lifting mechanism, bringing it to the bottom of a container filled with water. A weighing device measures the combined weight of the container, the rock sample, and the water. To separate the rock sample from the bottom of the container, the lifting mechanism moves the rope upwards, causing the rock sample to rise. Once the rock sample is separated from the bottom but still submerged in the water, the lifting mechanism stops. At this point, the length of the lifting rope is fixed. Compared to manually pulling the rope, once the distance between the rock sample and the bottom of the container is determined, there will be no further fluctuations or swaying of the rope. This allows the rock sample to be quickly and stably suspended in the water, ensuring that the weighing device readings remain stable. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the structure of this utility model.
[0016] The components include: 1. Weighing device; 2. Container; 3. Rock sample; 4. Lifting rope; 5. Support frame; 6. Take-up rod; and 7. Rocker arm. Detailed Implementation
[0017] 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.
[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0019] Reference Figure 1 As shown, this embodiment provides an auxiliary device for measuring rock density, including two support frames 5, a lifting mechanism for controlling the lifting of rock sample 3 is installed between the two support frames 5, a weighing device 1 is provided between the two support frames 5, a container 2 is placed on the weighing device 1, the top surface of the container 2 is provided with an opening, and the lifting mechanism is connected to the rock sample 3 through a lifting rope 4.
[0020] When measuring rock sample 3, rock sample 3 is tied with lifting rope 4 and then released by lifting mechanism, placing rock sample 3 below the bottom of container 2. Container 2 is filled with water. Weighing device 1 is used to measure the combined weight of container 2, rock sample 3, and water in container 2. When it is necessary to control lifting rope 4 to separate rock sample 3 from the bottom of container 2, lifting mechanism is used to move lifting rope 4 upward, thereby raising rock sample 3. When rock sample 3 is separated from the bottom of container 2, and rock sample 3 is still submerged in water in container 2, lifting mechanism is stopped. At this time, the length of lifting rope 4 is fixed. Compared to pulling lifting rope 4 directly by hand, once the distance between rock sample 3 and the bottom of container 2 is determined, there will be no more fluctuation, and lifting rope 4 will no longer sway. This allows rock sample 3 to be quickly and stably suspended in water, ensuring that the value displayed by weighing device 1 does not fluctuate.
[0021] Further optimization of the scheme: the lifting mechanism includes a take-up rod 6, the end of which is rotatably connected to two support frames 5. One end of the take-up rod 6 passes through one of the support frames 5 and is axially connected to a drive component. One end of the lifting rope 4 is fixedly connected to the take-up rod 6 and wound around the take-up rod 6.
[0022] The design is further optimized so that the drive component includes a rocker arm 7 that is fixedly connected to the take-up rod 6.
[0023] By using the rocker arm 7 to rotate the take-up rod 6, the lifting rope 4 can be wound around the take-up rod 6 to lift the rock sample 3.
[0024] Further optimization of the design: the rocker arm 7 includes a vertical rod and a horizontal rod. One end of the vertical rod is fixedly connected to the end of the take-up rod 6 that extends out of the support frame 5, and the other end of the vertical rod is fixedly connected to the horizontal rod.
[0025] The design was further optimized, with the horizontal bar being a cylindrical structure.
[0026] The horizontal bar is designed as a cylindrical structure, which makes it easier to rotate the take-up rod 6.
[0027] The scheme was further optimized, and the weighing device 1 was an electronic balance scale.
[0028] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0029] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. An auxiliary device for determining rock density, characterized in that, It includes two support frames (5), a lifting mechanism for controlling the lifting of the rock sample (3) is installed between the two support frames (5), a weighing device (1) is provided between the two support frames (5), a container (2) is placed on the weighing device (1), the top surface of the container (2) is provided with an opening, and the lifting mechanism is connected to the rock sample (3) through a lifting rope (4). The lifting mechanism includes a take-up rod (6), the end of which is rotatably connected to two support frames (5). One end of the take-up rod (6) passes through one of the support frames (5) and is axially connected to a drive component. One end of the lifting rope (4) is fixedly connected to the take-up rod (6) and wound around the take-up rod (6).
2. The auxiliary device for measuring rock density according to claim 1, characterized in that, The drive component includes a rocker arm (7) that is fixedly connected to the take-up rod (6).
3. The auxiliary device for determining rock density according to claim 2, characterized in that, The rocker arm (7) includes a vertical rod and a horizontal rod. One end of the vertical rod is fixedly connected to the end of the take-up rod (6) that extends out of the support frame (5), and the other end of the vertical rod is fixedly connected to the horizontal rod.
4. An auxiliary device for determining rock density according to claim 3, characterized in that, The horizontal bar is a cylindrical structure.
5. An auxiliary device for measuring rock density according to claim 1, characterized in that, The weighing device (1) is an electronic balance scale.