Sample container locking and fixing device of sealed test sample preparation pulverizer
By introducing a locking and fixing device consisting of rollers and locking rods into a sealed laboratory sample preparation grinder, the stability problem of the sample container during the grinding process is solved, the sample container is fixed, and the grinding efficiency and operational safety are improved.
Patent Information
- Application Number
- CN202520010547.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-01-03
AI Technical Summary
The sample containers in sealed laboratory sample preparation grinders are unstable during the grinding process, and are prone to displacement or falling off, affecting the grinding effect and equipment safety.
A locking and fixing device was designed, comprising a crusher base, a sample container, a container cover, a bracket, a roller seat, rollers, a pin, a pressure rod, and a locking rod. Through the cooperation of the rollers and the locking rod, the sample container is ensured not to move or fall off under high-frequency vibration.
It improves the stability of the sample container, prevents displacement or detachment, enhances pulverization efficiency, and ensures operational safety.
Smart Images

Figure CN223931562U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a sealing-type sample container locking and fixing device for a laboratory sample preparation pulverizer, belonging to the technical field of metallurgical industry testing and inspection equipment. Background Technology
[0002] The GM / F-2000 Type 1 sealed laboratory sample preparation pulverizer operates primarily on a vibratory grinding principle. Its main components include a motor, sample container, eccentric hammer, container cover, impact block, impact ring, and crushing ring. The motor, via the eccentric hammer mounted on its shaft, causes the pulverizing device, supported by six springs and consisting of the impact block, impact ring, and crushing ring, to vibrate at high frequency. This high-frequency vibration impacts and grinds the material inside the sample container, breaking it into fine powder. After pulverization, the material can achieve an output particle size of 80–200 mesh, meeting laboratory testing requirements. However, during the pulverization process, the sample container in the sealed laboratory sample preparation pulverizer suffers from poor stability and insecure fixing, which can easily lead to displacement or detachment, affecting the pulverization effect and equipment safety. Utility Model Content
[0003] The purpose of this invention is to provide a sealed sample container locking and fixing device for a laboratory sample preparation pulverizer, which prevents the sample container from moving or falling off during the pulverization process, thereby improving pulverization efficiency and operational safety, and solving the problems existing in the background technology.
[0004] The technical solution of this utility model is:
[0005] A sealed sample container locking and fixing device for a laboratory sample preparation pulverizer includes a pulverizer base, a sample container, a container cover, a bracket, a roller seat, rollers, a pin, a pressure rod, and a locking rod. The sample container is placed on the pulverizer base, the container cover is placed on the sample container, the rollers are pressed on the container cover, the rollers are rotatably connected to the roller seat, the roller seat is rotatably connected to the bracket through the pin, one end of the pressure rod is fixed to the roller seat, and the other end of the pressure rod is provided with a locking rod.
[0006] The container lid has a ring handle in the middle, and the roller presses on the ring handle in the middle of the container lid.
[0007] The rollers are two symmetrically arranged.
[0008] The lower end of the locking rod is rotatably connected to the support, and the upper end of the locking rod is bent to cooperate with the pressure rod.
[0009] The bracket is L-shaped.
[0010] The beneficial effects of this utility model are: it can firmly fix the sample container in the sealed laboratory sample preparation pulverizer, so that there is no relative sliding between the sample container and the base, solving the problems of displacement or falling off during the pulverization process caused by the instability of the sample container, improving pulverization efficiency and ensuring operational safety. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the usage state of this utility model;
[0012] Figure 2 This is a schematic diagram of the open state of the pressure rod of this utility model;
[0013] In the diagram: 1. Crusher base; 2. Sample container; 3. Container cover; 4. Handle; 5. Bracket; 6. Roller seat; 7. Roller; 8. Pin; 9. Pressure rod; 10. Locking rod; 11. Support. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings and examples.
[0015] See attached document Figure 1-2 A sealed sample container locking and fixing device for a laboratory sample preparation pulverizer includes a pulverizer base 1, a sample container 2, a container cover 3, a bracket 5, a roller seat 6, a roller 7, a pin 8, a pressure rod 9, and a locking rod 10. The sample container 2 is placed on the pulverizer base 1, the container cover 3 covers the sample container 2, the roller 7 presses on the container cover 3, the roller 7 is rotatably connected to the roller seat 6, the roller seat 6 is rotatably connected to the bracket 5 through the pin 8, one end of the pressure rod 9 is fixed to the roller seat 6, and the other end of the pressure rod 9 is provided with the locking rod 10.
[0016] In this embodiment, refer to the appendix Figure 1 , 2 The locking device includes a sealed laboratory sample preparation pulverizer, a handle 4, a bracket 5, a roller seat 6, a roller 7, a pin 8, a pressure rod 9, a locking rod 10, and a support 11, wherein:
[0017] The sealed laboratory sample preparation pulverizer is model GM / F-2000 1. Its main components include a motor, sample container 2, eccentric hammer, container cover 3, impact block, impact ring, and crushing ring. The container cover 3 has a ring handle 4 in the middle. The motor causes the pulverizing device, which is supported by six springs and consists of impact block, impact ring, and crushing ring, to vibrate at a high frequency through the eccentric hammer mounted on the shaft end. Under high-frequency vibration, these components impact and grind the material in the sample container, breaking it into fine powder.
[0018] The bracket 5 is L-shaped. The L-shaped bracket 5 and the pressure rod 9 are located on both sides of the roller seat 6. The roller seat 6 is rotatably connected to the bracket 5 through the pin 8. One end of the pressure rod 9 is fixed on the roller seat 6.
[0019] The rollers 7 are two arranged by the other party, and the two rollers 7 press on the ring handle 4 in the middle of the container cover 3 respectively.
[0020] The lower end of the locking rod 10 is rotatably connected to the support 11, and the upper end of the locking rod 10 is bent to cooperate with the pressure rod 9.
[0021] During the crushing process, the container lid 3, pressed down by the rollers 7, ensures that the sample container 2 will not move or fall off. When the sample container 2 needs to be filled, turn the locking rod 10 to lift the pressure rod 9, causing the rollers 7 to disengage from the sample container 2. Then, hold the handle 4 to remove the container lid 3. (See attached image) Figure 2 As shown.
Claims
1. A sealing sample container locking and fixing device for a laboratory sample preparation pulverizer, characterized in that: The device includes a crusher base (1), a sample container (2), a container cover (3), a bracket (5), a roller seat (6), a roller (7), a pin (8), a pressure rod (9), and a locking rod (10). The sample container (2) is placed on the crusher base (1), the container cover (3) covers the sample container (2), the roller (7) presses on the container cover (3), the roller (7) is rotatably connected to the roller seat (6), the roller seat (6) is rotatably connected to the bracket (5) through the pin (8), one end of the pressure rod (9) is fixed on the roller seat (6), and the other end of the pressure rod (9) is provided with a locking rod (10).
2. The sealing sample container locking and fixing device for a laboratory sample preparation pulverizer according to claim 1, characterized in that: The container cover (3) has a ring handle (4) in the middle, and the roller (7) presses on the ring handle (4) in the middle of the container cover (3).
3. A sealing sample container locking and fixing device for a laboratory sample preparation pulverizer according to claim 1 or 2, characterized in that: The rollers (7) are two symmetrically arranged.
4. The sealing sample container locking and fixing device for a laboratory sample preparation pulverizer according to claim 1, characterized in that: The lower end of the locking rod (10) is rotatably connected to the support (11), and the upper end of the locking rod (10) is bent to cooperate with the pressure rod (9).
5. The sealing sample container locking and fixing device for a laboratory sample preparation pulverizer according to claim 1, characterized in that: The bracket (5) is L-shaped.