Intelligent tablet hardness tester
By improving the push rod structure and collection device of the intelligent tablet hardness tester, the problems of inconvenient push rod disassembly and drug waste cleaning have been solved, enabling convenient replacement and automated waste collection, thus improving the ease of use and cleanliness of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN TIANFA ANALYTICAL INSTR CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-17
AI Technical Summary
The pusher structure of existing intelligent tablet hardness testers is not easy to install, disassemble and replace, resulting in residue sticking to the end face and making it difficult to clean. In addition, drug waste needs to be manually collected and cleaned after testing.
The design incorporates a push rod, a diamond-shaped opening, diamond-shaped blocks, and an installation head, enabling easy disassembly and cleaning of the push rod. It also separates tablet waste residue through a mesh plate and a collection box, and utilizes a V-shaped mesh plate and a baffle plate to achieve automatic collection and differentiation of waste residue.
It enables convenient replacement and cleaning of the push rod, and automatically collects tablet waste, improving operating efficiency and cleaning effect.
Smart Images

Figure CN224137018U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drug detection technology, specifically to an intelligent tablet hardness tester. Background Technology
[0002] An intelligent tablet hardness tester is a pharmaceutical testing instrument used to measure the hardness of tablets. It is widely used in pharmaceutical factories, drug testing institutes, and related research units. Its core function is to ensure that tablets are not easily broken or worn during packaging and transportation, thus reflecting the tablet's production process level and quality control. "Intelligent" refers to the instrument's inherent intelligent features, while "tablet" refers to the object being measured, i.e., a medicinal tablet. Its working principle is as follows: a push rod applies a compressive force to the tablet being tested, and the tablet generates a reaction force. This reaction force is captured by a load sensor and converted into an electrical signal for amplification and processing, ultimately yielding the tablet's hardness value.
[0003] The existing technology has the following problems:
[0004] In existing intelligent tablet hardness testers, the push rod is designed as a single piece, which is not easy to disassemble and replace. This results in residue sticking to the end face of the push rod after use, making it difficult to clean. In addition, existing intelligent tablet hardness testers produce a large amount of drug waste after drug testing, which requires operators to manually collect and clean the drug waste.
[0005] Therefore, we need an intelligent tablet hardness tester to solve the above problems. Utility Model Content
[0006] This invention provides an intelligent tablet hardness tester to solve the problems mentioned in the background art.
[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0008] An intelligent tablet hardness tester includes a hardness tester body. A display screen is provided on the rear side of the upper surface of the hardness tester body. A groove is formed on the upper front of the hardness tester body. An electric push rod is fixedly connected through the right side of the inner wall of the groove. A top rod is provided on the left side of the inner wall of the groove. An extrusion block and a mesh plate are provided on the opposite sides of the electric push rod and the top rod. A collection box is slidably connected inside the groove of the hardness tester body.
[0009] The top rod and the mesh plate are each mirror-image of two loading and unloading structures. The outer surfaces of the two loading and unloading structures are provided with locking structures above and below. Each loading and unloading structure includes a mounting head. The opposite surfaces of the electric push rod and the top rod are provided with diamond-shaped openings. A diamond-shaped block is inserted into the diamond-shaped opening. The outer surface of the diamond-shaped block is fixedly connected to the surface of the mounting head. The lower right side of the mounting head is fixedly connected to the surface of the mesh plate. The surface of the mounting head in the electric push rod is fixedly connected to the surface of the extrusion block.
[0010] A further improvement of this utility model is that the lower surface of the extrusion block is parallel to the upper surface of the mesh plate, the left end of the top rod is fixedly connected to a pressure sensor, and the outer surface of the pressure sensor is fixedly connected to the inner wall of the groove in the hardness tester body.
[0011] A further improvement of this utility model is that the locking structure described above and below each includes a fixing block one and a fixing block two. The lower surface of the fixing block one is fixedly connected to the outer surface of the top rod, and the lower surface of the fixing block two is fixedly connected to the outer surface of the mounting head.
[0012] A further improvement of the present invention is that: an extension block is fixedly connected to the right side of the first fixing block, an insertion block is fixedly connected to the right side of the extension block, and a communicating insertion port is opened on the right side of the second fixing block, the inside of the insertion port being inserted into the outer surface of the insertion block.
[0013] A further improvement of this utility model is that a blocking block is movably connected to the middle right side of the insert block, and the length of the blocking block in its vertical state is greater than the height of the insert block.
[0014] A further improvement of this utility model is that: a U-shaped handle is fixedly connected to the front of the collection box; support blocks are fixedly connected to both the front and rear sides of the inner wall of the collection box; a V-shaped mesh plate is movably connected to the right side of the upper surface of the collection box; the mesh in the V-shaped mesh plate is smaller than the mesh in the mesh plate; a rubber plate is fixedly connected to the left side of the upper surface of the collection box; an arc-shaped block is fixedly connected to the upper right side of the rubber plate; the lower right side of the rubber plate overlaps with the left side of the V-shaped mesh plate; and a handle is fixedly connected to the middle left side of the upper surface of the V-shaped mesh plate.
[0015] A further improvement of this utility model is that: baffles are fixedly connected to the front and rear sides of the upper right side of the V-shaped mesh plate, and two guide plates are fixedly connected to the right side of the opposite side of the front and rear baffles. The two guide plates are in an inclined state, and the opposite side of the two guide plates forms a discharge port.
[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0017] 1. This utility model provides an intelligent tablet hardness tester, which adopts the cooperation of a top rod, a diamond-shaped opening, a diamond-shaped block, a mounting head, a fixing block one, a fixing block two, an extension block, an insert block, a blocking block, and an insertion port. When disassembly is required, the blocking block is rotated to the front and rear horizontal direction, and the operator moves the mounting head to move the diamond-shaped block out from the inside of the diamond-shaped opening, thereby completing the disassembly and replacement operation. It also facilitates the cleaning effect of residue after bonding.
[0018] 2. This utility model provides an intelligent tablet hardness tester, which employs a combination of a screen plate, an extrusion block, an electric actuator, a collection box, a support block, a V-shaped screen plate, a rubber plate, an arc-shaped block, a handle, a baffle plate, and a guide plate. Tablets are placed on the screen plate, and the electric actuator pushes the extrusion block to compress the tablets. The resulting waste falls onto the V-shaped screen plate, which separates waste tablets of different sizes for collection. Furthermore, the rotation of the V-shaped screen plate allows larger waste tablets to be poured into a container for collection. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is an exploded view of the loading and unloading structure of this utility model;
[0021] Figure 3 This is an exploded view of the locking structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the front cross-sectional structure of the collection box of this utility model.
[0023] In the diagram: 1. Hardness tester body; 2. Display screen; 3. Electric actuator; 4. Push rod; 41. Diamond-shaped opening; 42. Diamond-shaped block; 43. Mounting head; 5. Mesh plate; 6. Extrusion block; 7. Collection box; 71. Support block; 72. V-shaped mesh plate; 73. Rubber plate; 74. Arc-shaped block; 75. Handle; 76. Baffle plate; 77. Guide plate; 81. Fixing block one; 82. Fixing block two; 83. Extension block; 84. Insertion block; 85. Blocking block; 86. Insertion port. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] Example 1: As Figures 1 to 4As shown, this utility model provides an intelligent tablet hardness tester, including a hardness tester body 1. A display screen 2 is provided on the rear side of the upper surface of the hardness tester body 1. The display screen 2 is used to display various parameters during the testing process, such as pressure value and test results, so that the operator can intuitively understand the testing situation. A groove is provided on the upper front of the hardness tester body 1. An electric push rod 3 is fixedly connected through the right side of the inner wall of the groove. The electric push rod 3 serves as a power source and can perform telescopic movement according to a preset program to provide power for squeezing tablets. A top rod 4 is provided on the left side of the inner wall of the groove.
[0026] The electric push rod 3 and the push rod 4 are equipped with extrusion blocks 6 and mesh plates 5 on their opposite sides. The extrusion blocks 6 are used to directly contact the tablets and apply pressure, while the mesh plates 5 are used to place the tablets and allow the waste residue after extrusion to fall directly for easy collection. The lower surface of the extrusion blocks 6 and the upper surface of the mesh plates 5 are parallel to each other to ensure that the extrusion blocks 6 and the mesh plates 5 will not collide. The left end of the push rod 4 is fixedly connected to a pressure sensor, model PE3029. The pressure sensor can detect the pressure value generated during the extrusion process in real time and transmit the data to the display screen 2 for display. The outer surface of the pressure sensor is fixedly connected to the inner wall of the groove in the hardness tester body 1 to ensure its stability during the testing process.
[0027] Example 2: Figures 1 to 4 As shown, the top rod 4 and the mesh plate 5 are each mirrored with two mounting and disassembly structures. The outer surfaces of the two mounting and disassembly structures are equipped with locking structures above and below. Each mounting and disassembly structure includes a mounting head 43. The opposite surfaces of the electric push rod 3 and the top rod 4 are each provided with a diamond-shaped opening 41. A diamond-shaped block 42 is inserted into the diamond-shaped opening 41. The outer surface of the diamond-shaped block 42 is fixedly connected to the surface of the mounting head 43. The lower right side of the mounting head 43 is fixedly connected to the surface of the mesh plate 5. The surface of the mounting head 43 in the electric push rod 3 is fixedly connected to the surface of the extrusion block 6. This mounting and disassembly structure facilitates the installation and disassembly of the extrusion block 6 and the mesh plate 5. When it is necessary to change to different specifications or when there is damage, the operation can be easily carried out.
[0028] Both the upper and lower locking structures include a first fixing block 81 and a second fixing block 82. The lower surface of the first fixing block 81 is fixedly connected to the outer surface of the top rod 4, and the lower surface of the second fixing block 82 is fixedly connected to the outer surface of the mounting head 43. An extension block 83 is fixedly connected to the right side of the first fixing block 81. The end face of the extension block 83 and the blocking block 85 form a clamping area to limit the second fixing block 82. An insertion block 84 is fixedly connected to the right side of the extension block 83. A through-hole 86 is opened on the right side of the second fixing block 82. The inside of the through-hole 86 is inserted into the outer surface of the insertion block 84. A blocking block 85 is movably connected to the middle of the right side of the insertion block 84. The length of the blocking block 85 in the vertical state is greater than the height of the insertion block 84. When the insertion block 84 is inserted into the through-hole 86, the blocking block 85 is rotated to make it in a vertical state, which can effectively prevent the insertion block 84 from coming out and achieve a firm locking effect for the mounting head 43.
[0029] Example 3: Figures 1 to 4 As shown, a collection box 7 is slidably connected inside the groove of the hardness tester body 1. The collection box 7 is used to collect fragments or powder generated during the testing process. A U-shaped handle is fixedly connected to the front of the collection box 7, making it easy for the operator to pull out the collection box 7 for cleaning. Support blocks 71 are fixedly connected to both the front and rear sides of the inner wall of the collection box 7. The support blocks 71 are used to support the V-shaped mesh plate 72, keeping the V-shaped mesh plate 72 stable. The V-shaped mesh plate 72 is movably connected to the right side of the upper surface of the collection box 7. The mesh in the V-shaped mesh plate 72 is smaller than the mesh in the mesh plate 5, so that the fragments and waste in the mesh plate 5 can fall downwards into the collection box 7 at the same time. A rubber plate 73 is fixedly connected to the left side of the upper surface of the V-shaped mesh plate 72. An arc-shaped block 74 is fixedly connected to the upper right side of the rubber plate 73. The lower right side of the rubber plate 73 overlaps with the left side of the V-shaped mesh plate 72. After the test is completed, the fragments and powders will fall onto the V-shaped mesh plate 72. Some small particles can fall into the bottom of the collection box 7 through the mesh of the V-shaped mesh plate 72, while larger fragments and waste remain on the V-shaped mesh plate 72. The rubber plate 73 and the arc-shaped block 74 have the function of limiting the position of the V-shaped mesh plate 72. A handle 75 is fixedly connected to the middle left side of the upper surface of the V-shaped mesh plate 72. The handle 75 is designed to facilitate the rotation and opening of the V-shaped mesh plate 72.
[0030] Baffles 76 are fixedly connected to the front and rear sides of the right side of the upper surface of the V-shaped mesh plate 72 to prevent larger tablet waste residues from falling from both sides when the V-shaped mesh plate 72 is rotated and opened. Two guide plates 77 are fixedly connected to the right side of the opposite side of the front and rear baffles 76. The two guide plates 77 are tilted and the opposite side of the two guide plates 77 forms a discharge port. The baffles 76 are designed to facilitate the collection and dumping of larger fragments of waste residue when the mesh plate is rotated and opened.
[0031] Working principle: The tablets are placed on the mesh plate 5. The electric push rod 3 is activated to push the extrusion block 6 towards the top rod 4 to extrude the tablets. The pressure sensor detects the pressure value in real time and transmits it to the display screen 2 to complete the tablet hardness detection. During the tablet extrusion, the mesh plate 5 causes tablet waste fragments of different sizes to fall into the collection box 7. The collection box 7 separates the tablet waste fragments of different sizes. When cleaning is required, the worker removes the collection box 7 and pulls the handle 75 to flip the V-shaped mesh plate 72. At the same time, the curved block 74 is squeezed, causing the rubber plate 73 to deform, so that the V-shaped mesh plate 72 is open. The baffle plate 76 and the guide plate 77 remove the larger tablet waste fragments after collection into the container. The collection box 7 is flipped to pour the smaller tablet waste fragments into another container, thus completing the collection process.
[0032] When disassembly and replacement are required, the blocking block 85 is rotated to make it horizontal, and the rhomboid block 42 is moved out of the rhomboid opening 41 by moving the installation head 43, thereby completing the disassembly and replacement operation and cleaning the waste residue of the adhesive.
[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. Intelligent tablet hardness tester comprising a hardness tester body (1), characterized in that: The hardness tester body (1) has a display screen (2) on the rear side of its upper surface. The hardness tester body (1) has a groove on the upper front side. An electric push rod (3) is fixedly connected through the right side of the inner wall of the groove. A top rod (4) is provided on the left side of the inner wall of the groove. An extrusion block (6) and a mesh plate (5) are provided on the opposite sides of the electric push rod (3) and the top rod (4). A collection box (7) is slidably connected inside the groove of the hardness tester body (1). The top rod (4) and the mesh plate (5) are each mirrored with two loading and unloading structures. The outer surfaces of the two loading and unloading structures are provided with locking structures above and below. Both loading and unloading structures include an installation head (43). The opposite surfaces of the electric push rod (3) and the top rod (4) are provided with diamond-shaped openings (41). A diamond-shaped block (42) is inserted into the diamond-shaped opening (41). The outer surface of the diamond-shaped block (42) is fixedly connected to the surface of the installation head (43). The lower right side of the installation head (43) is fixedly connected to the surface of the mesh plate (5). The surface of the installation head (43) in the electric push rod (3) is fixedly connected to the surface of the extrusion block (6).
2. The intelligent tablet hardness apparatus of claim 1, wherein: The lower surface of the extrusion block (6) is parallel to the upper surface of the mesh plate (5). The left end of the top rod (4) is fixedly connected to a pressure sensor. The outer surface of the pressure sensor is fixedly connected to the inner wall of the groove in the hardness tester body (1).
3. The intelligent tablet hardness apparatus of claim 1, wherein: The locking structures described above and below each include a fixing block one (81) and a fixing block two (82). The lower surface of the fixing block one (81) is fixedly connected to the outer surface of the top rod (4), and the lower surface of the fixing block two (82) is fixedly connected to the outer surface of the mounting head (43).
4. The intelligent tablet hardness apparatus of claim 3, wherein: An extension block (83) is fixedly connected to the right side of the first fixing block (81), and an insert block (84) is fixedly connected to the right side of the extension block (83). A communicating insertion port (86) is opened on the right side of the second fixing block (82), and the interior of the insertion port (86) is inserted into the outer surface of the insert block (84).
5. The intelligent tablet hardness apparatus of claim 4, wherein: A blocking block (85) is movably connected to the middle right side of the insert (84), and the length of the blocking block (85) in the vertical state is greater than the height of the insert (84).
6. The intelligent tablet hardness apparatus of claim 1, wherein: A U-shaped handle is fixedly connected to the front of the collection box (7). Support blocks (71) are fixedly connected to both the front and rear sides of the inner wall of the collection box (7). A V-shaped mesh plate (72) is movably connected to the right side of the upper surface of the collection box (7). The mesh in the V-shaped mesh plate (72) is smaller than the mesh in the mesh plate (5). A rubber plate (73) is fixedly connected to the left side of the upper surface of the collection box (7). An arc-shaped block (74) is fixedly connected to the upper right side of the rubber plate (73). The lower right side of the rubber plate (73) overlaps with the left side of the V-shaped mesh plate (72). A handle (75) is fixedly connected to the middle left side of the upper surface of the V-shaped mesh plate (72).
7. The intelligent tablet hardness apparatus of claim 6, wherein: The upper surface of the V-shaped mesh plate (72) is fixedly connected to baffle plates (76) on both the front and back sides. Two guide plates (77) are fixedly connected to the opposite right side of the front and back baffle plates (76). The two guide plates (77) are tilted and the opposite sides of the two guide plates (77) form a discharge port.