Testing device for water holding characteristic of bentonite sample

Abstract

The utility model relates to the technical field of devices for measuring the characteristics of porous materials, in particular to a device for testing the water holding characteristic of a bentonite sample, which comprises a sealed container and a telescopic heating device, the telescopic heating device is arranged below the sealed container, the top of the sealed container is connected with a sealing cover in a sealed manner, and the sealing cover is connected with the telescopic heating device. A connecting ring is fixedly connected to the top end of the inner side of the sealing cover, a hanging frame is clamped to the inner side of the connecting ring, a fixing mechanism is arranged at the top end of the hanging frame and located on the inner side of the connecting ring, a lifting handle is hung at the bottom end of the hanging frame, a hanging cup is installed at the bottom end of the lifting handle, and a heat preservation cover is fixedly installed at the top of the telescopic heating device. The fixing mechanism comprises a movable head fixedly connected to the top end of the hanging frame, compared with an existing testing device for the water holding characteristic of the bentonite sample, the testing device for the water holding characteristic of the bentonite sample has the advantages that the testing accuracy can be guaranteed through the design, meanwhile, the energy consumption is reduced, the heating efficiency is greatly improved, and the testing efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the technical field of devices for measuring the properties of porous materials, and specifically to a testing device for the water-holding properties of bentonite samples. Background Technology

[0002] Bentonite is a non-metallic mineral with montmorillonite as its main mineral component. The montmorillonite content in bentonite is as high as 85-90%. Therefore, the properties of bentonite are mainly determined by the properties of its main component, montmorillonite. Montmorillonite has strong water absorption and ion exchange properties, which gives bentonite characteristics such as low permeability, high expansion and high adsorption, and makes it widely used.

[0003] A search revealed that publication number CN220525576U discloses a temperature sensor and a humidity sensor; a container having a cavity, with the temperature sensor and humidity sensor disposed on the inner wall of the cavity; a lid, with the lid and container sealed together; a hanging cup and a connecting assembly, the connecting assembly having a first end sealingly extending out of the lid and a second end sealingly extending into the container, the hanging cup being connected to the second end of the connecting assembly so that the hanging cup is suspended inside the container, the hanging cup being used to hold a bentonite sample to be tested; a pull-out balance and a telescopic heating device, the container being disposed on the telescopic heating device, the first end of the connecting assembly being connected to the pull-out balance; the telescopic heating device being configured to extend and retract along the height direction.

[0004] The testing device described in the above-mentioned application embodiment can conveniently and accurately test the water-holding characteristics of bentonite samples. However, in actual operation, when the suspension line lifts the handle at the top of the cup, the bottom of the suspension line is in the shape of a water droplet. During the test, the water vapor condenses into water droplets that easily accumulate at the bottom of the suspension line. After the water droplets drip back into the cup, they affect the accuracy of the test. At the same time, when using the telescopic heating device to heat the sealed container, the telescopic heating device only contacts the bottom of the sealed container, resulting in a limited contact area and most of the heat being wasted. This not only increases energy consumption but also reduces heating efficiency, thereby reducing test efficiency.

[0005] Therefore, it is of great importance to design a testing device for the water-holding properties of bentonite samples to address the above-mentioned shortcomings. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention designs a testing device for the water-holding properties of bentonite samples. This testing device aims to solve the technical problems of insufficient accuracy and low testing efficiency of existing testing devices for the water-holding properties of bentonite samples.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A testing device for the water-holding properties of bentonite samples includes a sealed container and a telescopic heating device. The telescopic heating device is placed below the sealed container. The top of the sealed container is sealed with a cap. A connecting ring is fixedly connected to the top of the inner side of the cap. A hanging frame is snapped into the inner side of the connecting ring. A fixing mechanism is provided at the top of the hanging frame and inside the connecting ring. A handle is hung at the bottom of the hanging frame. A hanging cup is installed at the bottom of the handle. A heat insulation cover is fixedly installed on the top of the telescopic heating device.

[0009] The fixing mechanism includes a movable head fixedly connected to the top of the hanging frame. The movable head has symmetrical sliding columns inside. A first spring is fixedly connected inside the movable head and between the two sets of sliding columns. An operating handle is fixedly connected to one end of each set of sliding columns facing each other. A locking block is fixedly connected to one end of each set of sliding columns facing away from each other. Each set of locking blocks has a slot inside that is adapted to the connecting ring.

[0010] As a preferred embodiment of this utility model, the telescopic heating device includes a telescopic part and a heating part. The heating part is installed on the top of the telescopic part, and both the left and right ends of the heat preservation cover are fixedly connected to the heating part through locking boxes.

[0011] As a preferred embodiment of this utility model, the top of the heat insulation cover is provided with an entry hole, and the interior of the heat insulation cover is provided with a fireproof rock wool insulation layer.

[0012] As a preferred embodiment of this utility model, a heat-conducting cover is fixedly connected to the top of the heating part and below the inlet hole, and multiple sets of heat-conducting plates are fixedly connected between the outer side of the heat-conducting cover and the heating part.

[0013] As a preferred embodiment of this utility model, a locking pin is slidably connected inside the locking box, a locking block is fixedly connected at the position corresponding to the locking pin of the heat insulation cover, a second spring is sleeved on the outside of the locking pin, and a top ring is fixedly connected on the outside of the locking pin and at the rear end of the second spring.

[0014] As a preferred embodiment of this utility model, a positioning post is fixedly connected to the outer side of the top ring, and a positioning groove is provided on the outer side of the locking box at a position corresponding to the positioning post.

[0015] As a preferred embodiment of this utility model, hooks are fixedly connected to both ends of the hanging frame, and hanging posts are fixedly connected to the top of the left and right sides of the handle and inside the hooks.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, through the coordinated design of the hanging frame, fixing mechanism and handle, the hanging cup containing the bentonite test sample is hung on the bottom of the hanging frame by the handle. Then, the two sets of operating handles are squeezed to compress the first spring. After that, the movable head is inserted into the inside of the connecting ring and the two sets of operating handles are released. After the first spring returns to its original position, the two sets of sliding columns are pushed outward into the inside of the movable head, so that the groove on the inside of the locking block fits into the inside of the connecting ring, thereby installing the hanging frame below the connecting ring. This not only facilitates installation and operation during the test, but also prevents water droplets formed by water vapor from adhering to the hanging frame and handle from sliding off from both ends, thus avoiding water droplets from dripping back into the hanging cup and ensuring the accuracy of the test.

[0018] 2. In this utility model, through the cooperative design of the telescopic heating device and the heat insulation cover, the heat insulation cover is installed and fixed on the top of the heating part by the locking box. During the test, the heating part is moved vertically upward by the telescopic part, and then the hanging cup enters the interior of the heat insulation cover through the inlet hole, so that the bottom of the hanging cup touches the heating part. The heating part heats the hanging cup. During this process, the heat insulation cover can concentrate the heat of the heating part on the outside of the hanging cup and keep it warm through the fireproof rock wool insulation layer, thereby reducing energy consumption and greatly improving heating efficiency. When the bottom of the hanging cup contacts the heating part, the bottom of the hanging cup is located inside the heat conduction cover. The heat of the part of the heating part that does not contact the bottom of the hanging cup is conducted to the heat conduction cover through multiple sets of heat conduction plates, thereby increasing the contact area between the heating part and the hanging cup, further improving the heating efficiency, and thus improving the test efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the sealed container of this utility model;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a schematic diagram of the card block structure of this utility model;

[0023] Figure 5 This is a diagram showing the state of the sealed container inside the heat insulation cover of this utility model;

[0024] Figure 6 This is a schematic diagram of the top structure of the heating part of this utility model;

[0025] Figure 7 for Figure 6 Enlarged view at point B in the middle;

[0026] Figure 8 This is a schematic diagram of the internal structure of the locking box of this utility model.

[0027] In the diagram: 1. Sealed container; 2. Telescopic heating device; 201. Telescopic part; 202. Heating part; 3. Cover; 4. Connecting ring; 5. Hanging frame; 6. Fixing mechanism; 601. Movable head; 602. Sliding column; 603. First spring; 604. Operating handle; 605. Locking block; 606. Locking groove; 7. Handle; 701. Hook; 702. Hanging column; 8. Hanging cup; 9. Insulation cover; 901. Locking box; 902. Entry hole; 903. Fireproof rock wool insulation layer; 904. Heat-conducting cover; 905. Heat-conducting plate; 906. Locking insert; 907. Locking block; 908. Second spring; 909. Top ring; 910. Positioning column; 911. Positioning groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] Example: Please refer to Figures 1-8 This utility model provides a technical solution:

[0030] A testing device for the water-holding properties of bentonite samples includes a sealed container 1 and a telescopic heating device 2. The telescopic heating device 2 is placed below the sealed container 1. The top of the sealed container 1 is sealed with a cover 3. The top of the inner side of the cover 3 is fixedly connected with a connecting ring 4. The inner side of the connecting ring 4 is snapped with a hanging frame 5. The top of the hanging frame 5 and located inside the connecting ring 4 is provided with a fixing mechanism 6. The bottom of the hanging frame 5 is hung with a handle 7. The bottom of the handle 7 is equipped with a hanging cup 8. The top of the telescopic heating device 2 is fixedly installed with a heat insulation cover 9.

[0031] First, in this embodiment, the specific structure of the fixing mechanism 6 is as follows:

[0032] The fixing mechanism 6 includes a movable head 601 fixedly connected to the top of the hanging frame 5. Sliding columns 602 are symmetrically slidably connected inside the movable head 601. A first spring 603 is fixedly connected inside the movable head 601 and between the two sets of sliding columns 602. An operating handle 604 is fixedly connected to the opposite end of each set of sliding columns 602, and a locking block 605 is fixedly connected to the opposite end of each set of sliding columns 602. Each locking block 605 has a slot 606 inside that is adapted to the connecting ring 4. The hanging cup 8 containing the bentonite test sample is hung on the bottom of the hanging frame 5 via the handle 7, and then simultaneously squeezed... The two sets of operating handles 604 compress the first spring 603. Then, the movable head 601 is inserted into the inside of the connecting ring 4 and the two sets of operating handles 604 are released. After the first spring 603 returns to its original position, the two sets of sliding pins 602 are pushed outward into the movable head 601, so that the slot 606 on the inside of the locking block 605 fits against the inside of the connecting ring 4, thereby installing the hanging frame 5 below the connecting ring 4. This not only facilitates installation and operation during testing, but also prevents water droplets condensed from adhering to the hanging frame 5 and the handle 7 from sliding off from both ends, thus avoiding water droplets from dripping back into the hanging cup 8 and ensuring the accuracy of the test.

[0033] Furthermore, the telescopic heating device 2 includes a telescopic part 201 and a heating part 202. The heating part 202 is installed on the top of the telescopic part 201. The left and right ends of the heat insulation cover 9 are fixedly connected to the heating part 202 through locking boxes 901. The heat insulation cover 9 is installed and fixed on the top of the heating part 202 through the locking boxes 901.

[0034] Then, an entry hole 902 is provided on the top of the heat insulation cover 9, and a fireproof rock wool insulation layer 903 is provided inside the heat insulation cover 9. During the test, the heating part 202 is moved vertically upward by the telescopic part 201, and then the hanging cup 8 enters the interior of the heat insulation cover 9 through the entry hole 902, so that the bottom of the hanging cup 8 touches the heating part 202, and the heating part 202 heats the hanging cup 8. During this process, the heat insulation cover 9 can concentrate the heat of the heating part 202 on the outside of the hanging cup 8 and keep it warm through the fireproof rock wool insulation layer 903, thereby reducing energy consumption and greatly improving heating efficiency, thus improving the efficiency of the test.

[0035] Furthermore, a heat-conducting cover 904 is fixedly connected to the top of the heating part 202 and below the inlet hole 902. Multiple sets of heat-conducting plates 905 are fixedly connected between the outer side of the heat-conducting cover 904 and the heating part 202. When the bottom of the hanging cup 8 contacts the heating part 202, the bottom end of the hanging cup 8 is located inside the heat-conducting cover 904. The heat of the part of the heating part 202 that does not contact the bottom of the hanging cup 8 is conducted to the heat-conducting cover 904 through the multiple sets of heat-conducting plates 905, thereby increasing the contact area between the heating part 202 and the hanging cup 8, further improving the heating efficiency, and thus improving the testing efficiency.

[0036] The locking box 901 has a locking pin 906 slidably connected inside. The heat insulation cover 9 is fixedly connected to the locking pin 906 at the corresponding position. The locking pin 906 is fitted with a second spring 908. The locking pin 906 is fixedly connected to a top ring 909 at the rear end of the second spring 908. When the heat insulation cover 9 is installed on the top of the heating part 202, the top ring 909 is pressed against the second spring 908, thereby pushing the locking pin 906 out of the locking box 901. The locking pin 906 then fixes the locking block 907, making it convenient to install the heat insulation cover 9 on the heating part 202 for auxiliary testing.

[0037] Secondly, a positioning post 910 is fixedly connected to the outer side of the top ring 909. A positioning groove 911 is provided on the outer side of the locking box 901 at the position corresponding to the positioning post 910. When the heat insulation cover 9 is removed from the heating part 202, the locking post 906 is pulled and rotated so that the positioning post 910 is inserted into the front end of the positioning groove 911, thereby fixing the locking post 906 inside the locking box 901. Then the heat insulation cover 9 can be removed from the heating part 202, which facilitates disassembly and assembly and improves testing efficiency.

[0038] Finally, hooks 701 are fixedly connected to both ends of the hanging frame 5, and hanging posts 702 are fixedly connected to the top of the left and right sides of the handle 7 and inside the hooks 701. The top of the handle 7 is hung on the hooks 701 at the bottom of the hanging frame 5 through the hanging posts 702, so that the hanging cup 8 is hung inside the sealed container 1. At the same time, the hanging posts 702 can prevent the hooks 701 from slipping off and ensure the stability of the test.

[0039] In this embodiment, the specific implementation scenario is as follows: The hanging cup 8 containing the bentonite test sample is hung on the bottom of the hanging frame 5 via the handle 7. Then, the two sets of operating handles 604 are squeezed simultaneously to compress the first spring 603. After the movable head 601 is inserted into the inside of the connecting ring 4, the two sets of operating handles 604 are released. After the first spring 603 returns to its original position, the two sets of sliding pillars 602 are pushed outward towards the inside of the movable head 601, so that the slot 606 on the inside of the locking block 605 fits against the inside of the connecting ring 4. Thus, the hanging frame 5 is installed below the connecting ring 4. This not only facilitates installation and operation during the test, but also prevents water droplets formed by water vapor from adhering to the hanging frame 5 and the handle 7 from sliding off from both ends, thus preventing water from dripping back into the hanging cup 8. The heat insulation cover 9 is installed and fixed on the top of the heating part 202 via the locking box 901. During the test, the heating part 202 is moved vertically upward via the telescopic part 201, and then the hanging cup 8 enters the heat insulation cover 9 through the inlet hole 902. Inside the device, the bottom of the hanging cup 8 is placed against the heating element 202, which heats the hanging cup 8. During this process, the heat insulation cover 9 concentrates the heat from the heating element 202 on the outside of the hanging cup 8 and is insulated by the fireproof rock wool insulation layer 903, thereby reducing energy consumption and greatly improving heating efficiency. When the bottom of the hanging cup 8 contacts the heating element 202, the bottom of the hanging cup 8 is located inside the heat-conducting cover 904. Multiple sets of heat-conducting plates 905 conduct the heat from the part of the heating element 202 that is not in contact with the bottom of the hanging cup 8 to the heat-conducting cover 904, thereby increasing the contact area between the heating element 202 and the hanging cup 8 and further improving heating efficiency. The entire operation process is simple and convenient. Compared with the existing testing device for the water retention characteristics of bentonite samples, this utility model can ensure the accuracy of the test through design, while reducing energy consumption and greatly improving heating efficiency, thereby improving the efficiency of the test.

[0040] 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 testing device for the water-holding properties of bentonite samples, comprising a sealed container (1) and a telescopic heating device (2), characterized in that: The telescopic heating device (2) is placed below the sealed container (1). The top of the sealed container (1) is sealed with a cover (3). The top of the inner side of the cover (3) is fixedly connected with a connecting ring (4). The inner side of the connecting ring (4) is snapped with a hanging frame (5). The top of the hanging frame (5) and located inside the connecting ring (4) are provided with a fixing mechanism (6). The bottom of the hanging frame (5) is hung with a handle (7). The bottom of the handle (7) is installed with a hanging cup (8). The top of the telescopic heating device (2) is fixedly installed with a heat preservation cover (9). The fixing mechanism (6) includes a movable head (601) fixedly connected to the top of the hanging frame (5). The movable head (601) is symmetrically connected to a sliding column (602). The movable head (601) is fixedly connected to a first spring (603) inside the movable head (601) and between the two sets of sliding columns (602). An operating handle (604) is fixedly connected to one end of each set of sliding columns (602) opposite to each other. A locking block (605) is fixedly connected to one end of each set of sliding columns (602) opposite to each other. The locking blocks (605) are provided with a slot (606) inside each set of locking blocks (605) that is adapted to the connecting ring (4).

2. The testing device for the water-holding properties of bentonite samples according to claim 1, characterized in that: The telescopic heating device (2) includes a telescopic part (201) and a heating part (202). The heating part (202) is installed on the top of the telescopic part (201). The left and right ends of the heat insulation cover (9) are fixedly connected to the heating part (202) through locking boxes (901).

3. The testing device for the water-holding properties of bentonite samples according to claim 2, characterized in that: The top of the heat insulation cover (9) is provided with an entry hole (902), and the interior of the heat insulation cover (9) is provided with a fireproof rock wool insulation layer (903).

4. The testing device for the water-holding properties of bentonite samples according to claim 3, characterized in that: A heat-conducting cover (904) is fixedly connected to the top of the heating part (202) and below the inlet hole (902). Multiple sets of heat-conducting plates (905) are fixedly connected between the outer side of the heat-conducting cover (904) and the heating part (202).

5. The testing device for the water-holding properties of bentonite samples according to claim 2, characterized in that: The locking box (901) is slidably connected to a locking pin (906). The heat insulation cover (9) is fixedly connected to a locking block (907) at a position corresponding to the locking pin (906). A second spring (908) is sleeved on the outside of the locking pin (906). A top ring (909) is fixedly connected on the outside of the locking pin (906) and at the rear end of the second spring (908).

6. A device for testing the water retention characteristics of a sample of bentonite according to claim 5, characterised in that: A positioning post (910) is fixedly connected to the outer side of the top ring (909), and a positioning groove (911) is provided on the outer side of the locking box (901) at a position corresponding to the positioning post (910).

7. The testing device for the water-holding properties of bentonite samples according to claim 1, characterized in that: Both ends of the hanging frame (5) are fixedly connected with hooks (701), and the top of the left and right sides of the handle (7) and located inside the hooks (701) are fixedly connected with hanging posts (702).

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