Rotary oscillation type nitrogen blowing sample pretreatment instrument
The nitrogen blowing sample pretreatment instrument with a rotary oscillation design solves the problem of lack of synchronous mixing in traditional instruments, realizes synchronous mixing of samples during nitrogen blowing and prevents test tube shaking, thus improving experimental efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN ANBINUO TESTING TECH CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional nitrogen blowing sample pretreatment instruments lack synchronous mixing function, resulting in inconsistent solvent evaporation rates in different parts of the sample, which affects the accuracy and repeatability of experimental results and increases the number of work steps and time costs.
A rotary oscillating nitrogen blowing sample pretreatment instrument was designed. By setting a rotating device, the nozzle and the circular frame rotate synchronously to achieve uniform mixing of the sample during the nitrogen blowing process. Combined with a blocking device, the test tube is prevented from shaking and the sample is prevented from leaking.
This technology enables simultaneous mixing of samples during nitrogen blowing, shortens pretreatment time, improves work efficiency, prevents test tube shaking and sample contamination, and enhances the practicality and safety of the device.
Smart Images
Figure CN224216406U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nitrogen blowing technology, and in particular to a rotary oscillating nitrogen blowing sample pretreatment instrument. Background Technology
[0002] In numerous fields such as scientific research, chemical engineering, and pharmaceuticals, nitrogen purging sample pretreatment is a common and crucial experimental procedure. Its purpose is to concentrate and dry samples through nitrogen purging, providing suitable sample conditions for subsequent experimental analysis. However, traditional nitrogen purging sample pretreatment instruments have several drawbacks. Firstly, during nitrogen purging, samples often passively receive nitrogen, lacking a simultaneous mixing function. This results in inconsistent solvent evaporation rates across different parts of the sample, severely impacting the accuracy and repeatability of experimental results. To achieve uniform experimental results, staff must spend extra time after nitrogen purging, employing methods such as manual shaking or using other mixing equipment for secondary mixing. This undoubtedly increases the workload, prolongs the overall pretreatment time, significantly reduces work efficiency, and the errors introduced by manual operation further affect the reliability of the experiment.
[0003] The inventors believe that the following defects often exist: due to the lack of synchronous mixing function, staff need to spend extra time after nitrogen blowing to use other methods to mix the sample, which increases the number of work steps and time costs and reduces work efficiency; therefore, a rotary oscillating nitrogen blowing sample pretreatment instrument is proposed to address the above problems. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as increased work steps and time costs, and reduced work efficiency, by proposing a rotary oscillating nitrogen blowing sample pretreatment instrument.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a rotary oscillating nitrogen blowing sample pretreatment instrument, comprising a nitrogen blowing instrument, a circular frame rotatably connected to the surface of the nitrogen blowing instrument, an adjusting frame mounted on the arc surface of the nitrogen blowing instrument, an adjuster mounted on the surface of the adjusting frame, a spray frame rotatably connected to the arc surface of the adjuster, a plurality of nozzles fixedly connected inside the spray frame, a rotating device provided on the arc surface of the spray frame, the rotating device comprising two L-shaped frames, both of which are fixedly connected to the arc surface of the spray frame, grooves formed on the surface of the L-shaped frames, two fixing blocks fixedly connected to the arc surface of the circular frame, the fixing blocks being slidably connected to the surface of the L-shaped frames, a fixing rod fixedly connected to one side of the fixing blocks, an operating plate slidably connected to the arc surface of the fixing rod, an insert rod fixedly connected to one side of the operating plate, and a plurality of test tube holes formed on the surface of the circular frame.
[0006] The effect achieved by the above components is as follows: by setting up a rotating device, the nozzle and the circular frame can be rotated simultaneously, thereby achieving sample homogenization during nitrogen blowing, shortening the pretreatment time, avoiding the situation where, due to the lack of synchronous homogenization function, the staff need to spend extra time after nitrogen blowing to use other methods to homogenize the sample, which would increase the number of work steps and time costs and reduce work efficiency, thus improving the practicality of the device.
[0007] Preferably, a limiting plate is fixedly connected to the end of the fixing rod away from the fixing block, and the size of the insertion rod is adapted to the size of the L-shaped bracket slot.
[0008] The effect achieved by the above components is that the limiting plate restricts the maximum sliding distance of the operating plate on the arc surface of the fixed rod, thus preventing the operating plate from detaching from the arc surface of the fixed rod due to excessive pulling force when the operator pulls the operating plate.
[0009] Preferably, a first spring is fitted onto the arc surface of the fixing rod, and the two ends of the first spring are fixedly connected to the operating plate and the fixing block, respectively.
[0010] The effect achieved by the above components is that the first spring improves the stability of the insertion rod when it is positioned relative to the L-shaped frame.
[0011] Preferably, a rubber ring is fixedly connected to the surface of the test tube hole of the circular frame, and the inner surface of the rubber ring is provided with anti-slip protrusions.
[0012] The effect achieved by the above-mentioned components is that the rubber rings restrain the test tubes placed in the test tube holes of the circular rack, preventing the test tubes from colliding with the test tube holes of the circular rack and being damaged when the circular rack rotates.
[0013] Preferably, a limiting ring is fixedly connected to the surface of the nitrogen blowing device, and the limiting ring is slidably connected to the arc surface of the circular frame.
[0014] The effect achieved by the above components is that the limiting ring limits the rotation range of the circular frame, preventing the center of rotation of the circular frame from shifting due to prolonged rotation, which could cause the circular frame to fall off the nitrogen blower.
[0015] Preferably, the surfaces of the two L-shaped frames are provided with a blocking device, the blocking device including two support plates, the two support plates being slidably connected to the surfaces of the two L-shaped frames respectively, a ring being fixedly connected to one side of the two support plates that are close to each other, a plurality of blocking pads being fixedly connected to one side of the ring, the blocking pads being slidably connected to the arc surface of the nozzle, a drive rod being threaded into the internal thread of the support plate, one end of the drive rod being rotatably connected to a connecting block, the connecting block abutting against the surface of the L-shaped frame.
[0016] The effect achieved by the above-mentioned components is as follows: by setting up a blocking device, the sample in the test tube is blocked, which prevents the test tubes in the test tube holes of the circular frame from shaking synchronously when the circular frame rotates. This avoids the sample in the test tube from being thrown out of the test tube due to inertial factors, thereby causing pollution to the surrounding environment and improving the protective performance of the device.
[0017] Preferably, a positioning rod is fixedly connected to the side of the connecting block near the drive rod, and the arc surface of the positioning rod is slidably connected to the support plate.
[0018] The effect achieved by the above components is that the positioning rod restricts the connecting block from rotating with the drive rod, so as to provide stable and accurate guidance for the connecting block.
[0019] In summary, the beneficial effects of this utility model are as follows:
[0020] 1. In this utility model, by setting a rotating device, the nozzle and the circular frame are rotated simultaneously, thereby achieving sample homogenization during nitrogen blowing, shortening the pretreatment time, and avoiding the situation where, due to the lack of synchronous homogenization function, the staff need to spend extra time after nitrogen blowing to use other methods to homogenize the sample, which would increase the number of work steps and time costs and reduce work efficiency, thus improving the practicality of the device.
[0021] 2. In this utility model, by setting up a blocking device, the sample in the test tube is blocked, which avoids the test tubes in the test tube holes of the circular frame from shaking synchronously when the circular frame rotates. The sample in the test tube may be thrown out of the test tube due to inertial factors, thereby causing pollution to the surrounding environment, thus improving the protective performance of the device. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0023] Figure 2 This is a schematic diagram of the rotating device in this utility model;
[0024] Figure 3 This is a partial structural schematic diagram of the rotating device in this utility model;
[0025] Figure 4 This is a partial structural diagram of the rotating device in this utility model;
[0026] Figure 5 This is a schematic diagram of the blocking device in this utility model;
[0027] Figure 6 In this utility model Figure 5 Enlarged view of point A.
[0028] Legend: 1. Nitrogen blower; 2. Circular frame; 3. Adjusting frame; 4. Adjuster; 5. Spray frame; 6. Nozzle; 7. Rotating device; 8. Blocking device; 71. L-shaped frame; 72. Fixing block; 73. Fixing rod; 74. Operating panel; 75. Insert rod; 76. Limiting plate; 77. First spring; 78. Rubber ring; 79. Limiting ring; 81. Support plate; 82. Circular ring; 83. Blocking pad; 84. Drive rod; 85. Connecting block; 86. Positioning rod. Detailed Implementation
[0029] Reference Figure 1 As shown, this utility model provides a technical solution: a rotary oscillating nitrogen blowing sample pretreatment instrument, including a nitrogen blowing instrument 1, a circular frame 2 rotatably connected to the surface of the nitrogen blowing instrument 1, an adjusting frame 3 mounted on the arc surface of the nitrogen blowing instrument 1, an adjuster 4 mounted on the surface of the adjusting frame 3, a spray frame 5 rotatably connected to the arc surface of the adjuster 4, a plurality of nozzles 6 fixedly connected inside the spray frame 5, and a rotating device 7 provided on the arc surface of the spray frame 5. By setting the rotating device 7, the effect of rotating the nozzles 6 and the circular frame 2 simultaneously is achieved, thereby achieving simultaneous sample mixing during the nitrogen blowing process, shortening the pretreatment time, and avoiding... Because of the lack of synchronous mixing function, staff need to spend extra time after nitrogen blowing to use other methods to mix the sample, which increases the number of work steps and time costs and reduces work efficiency. To improve the practicality of the device, the surfaces of the two L-shaped frames 71 are equipped with blocking devices 8. By setting the blocking devices 8, the sample in the test tube is blocked, which prevents the test tube in the test tube hole of the circular frame 2 from shaking synchronously when the circular frame 2 rotates. The sample in the test tube may be thrown out of the test tube due to inertial factors, thus causing pollution to the surrounding environment, thereby improving the protection of the device.
[0030] The specific configuration and function of its rotating device 7 and blocking device 8 will be explained in detail below.
[0031] Reference Figure 2 , Figure 3 , Figure 4 and Figure 6As shown in this embodiment: the rotating device 7 includes two L-shaped frames 71, both of which are fixedly connected to the arc surface of the spray frame 5. The surface of the L-shaped frame 71 has grooves. Two fixing blocks 72 are fixedly connected to the arc surface of the circular frame 2. The fixing blocks 72 are slidably connected to the surface of the L-shaped frame 71. A fixing rod 73 is fixedly connected to one side of the fixing block 72. An operating plate 74 is slidably connected to the arc surface of the fixing rod 73. A plug rod 75 is fixedly connected to one side of the operating plate 74. Several test tube holes are opened on the surface of the circular frame 2. The fixing rod 73 is located away from the fixing... One end of block 72 is fixedly connected to a limiting plate 76. The size of the insertion rod 75 is adapted to the size of the slot of the L-shaped frame 71. When the operator pulls the operating plate 74, the operating plate 74 slides on the arc surface of the fixed rod 73. At this time, the limiting plate 76 achieves the effect of limiting the maximum sliding distance of the operating plate 74 on the arc surface of the fixed rod 73, avoiding the situation where the operating plate 74 detaches from the arc surface of the fixed rod 73 due to excessive pulling force. The arc surface of the fixed rod 73 is fitted with a first spring 77. 7 is fixedly connected to the operating plate 74 and the fixing block 72 at both ends respectively. When the operator releases the operating plate 74, the rebound force of the first spring 77 causes the operating plate 74 to slide on the arc surface of the fixing rod 73. At the same time, the operating plate 74 drives the insertion rod 75 to move until the insertion rod 75 is inserted into the slot of the L-shaped frame 71. At this time, the first spring 77 improves the stability of the insertion rod 75 when it is limited by the L-shaped frame 71. A rubber ring 78 is fixedly connected to the surface of the test tube hole of the circular frame 2. The inner surface of the rubber ring 78 is provided with anti-slip protrusions. At this time, the rubber ring 78 achieves the stability of the circular frame 2. The test tubes placed in the test tube holes are restrained, preventing them from colliding with the test tube holes of the circular frame 2 when the frame 2 rotates, thus avoiding damage to the test tubes. A limiting ring 79 is fixedly connected to the surface of the nitrogen blowing device 1. The limiting ring 79 is slidably connected to the arc surface of the circular frame 2, thus limiting the rotation range of the circular frame 2. This prevents the center of rotation of the circular frame 2 from shifting due to prolonged rotation, which could cause the circular frame 2 to fall off the nitrogen blowing device 1.
[0032] Reference Figure 5 and Figure 6As shown, specifically, the blocking device 8 includes two support plates 81, which are slidably connected to the surfaces of two L-shaped frames 71 respectively. A ring 82 is fixedly connected to one side of the two support plates 81 that is close to each other. Several blocking pads 83 are fixedly connected to one side of the ring 82. The blocking pads 83 are slidably connected to the arc surface of the nozzle 6. A drive rod 84 is threaded into the support plate 81. A connecting block 85 is rotatably connected to one end of the drive rod 84. The connecting block 85 abuts against the surface of the L-shaped frame 71. A positioning rod 86 is fixedly connected to the side of the connecting block 85 that is close to the drive rod 84. The arc surface of the positioning rod 86 is slidably connected to the support plate 81. When the operator rotates the drive rod 84, the drive rod 84 moves in the threaded section of the support plate 81. At the same time, the drive rod 84 drives the connecting block 85 to move. The connecting block 85 drives the positioning rod 86 to slide in the support plate 81. At this time, the positioning rod 86 achieves the effect of restricting the connecting block 85 from rotating with the drive rod 84, so as to provide stable and accurate guidance for the connecting block 85.
[0033] Working principle: The rotating device 7 is mainly used to realize the synchronous rotation of the nozzle 6 and the circular frame 2, and to ensure the stable operation of the overall structure. When it is necessary to synchronously rotate the nozzle 6 and the circular frame 2, the fixing block 72 fixed on the circular frame 2 slides with the surface of the L-shaped frame 71 on the spray frame 5, so that the circular frame 2 and the spray frame 5 are kinematically linked. When the operator pulls the operating plate 74, the operating plate 74 slides on the arc surface of the fixing rod 73. The limiting plate 76 at one end of the fixing rod 73 limits the sliding distance of the operating plate 74 to prevent it from detaching from the fixing rod 73. When the operating plate 74 is released, the first spring 77 sleeved on the fixing rod 73 rebounds, driving the operating plate 74 and the insertion rod 75 to move. Insert the L-shaped frame 71 into the slot to secure the connection between the two, ensuring that the spray frame 5 and the circular frame 2 rotate together during rotation. In terms of sample placement, the rubber ring 78 on the surface of the test tube hole of the circular frame 2, with its anti-slip protrusions on the inner surface, restrains the test tube placed in the test tube hole, preventing the test tube from colliding and being damaged when the circular frame 2 rotates. The limiting ring 79 on the surface of the nitrogen blowing device 1 slides and connects with the arc surface of the circular frame 2, effectively limiting the rotation range of the circular frame 2 and preventing it from shifting its rotation center due to long-term rotation, thereby preventing the circular frame 2 from falling off the nitrogen blowing device 1. Through the coordinated operation of each component, the entire device achieves sample mixing and stable sample processing during the nitrogen blowing process.
[0034] The blocking device 8 is mainly used to block the nozzle 6. Its working process is as follows: When the operator rotates the drive rod 84, since the drive rod 84 is threadedly connected to the support plate 81, the drive rod 84 moves threadedly within the support plate 81. During this process, the drive rod 84 drives the connecting block 85 to move together. The connecting block 85 then drives the positioning rod 86 to slide within the support plate 81. The function of the positioning rod 86 is to restrict the connecting block 85 from rotating with the drive rod 84, ensuring that the connecting block 85 can move stably and accurately along a straight line. At this time, pushing the connecting block 85 causes the support plate 81 to slide on the surface of the L-shaped frame 71, thereby causing the two support plates 81 to move the ring 82 and several blocking pads 83. Finally, the blocking pads 83 slide into contact with the arc surface of the nozzle 6, thereby blocking the test tubes in the test tube holes of the circular frame 2, meeting the needs of specific experimental operations or equipment operation. Through the close cooperation between the components, the device can accurately control the blocking of the test tubes.
[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
Claims
1. A rotary oscillating nitrogen blowing sample pretreatment instrument, comprising a nitrogen blowing device (1), characterized in that: A circular frame (2) is rotatably connected to the surface of the nitrogen blower (1). An adjusting frame (3) is installed on the arc surface of the nitrogen blower (1). An adjuster (4) is installed on the surface of the adjusting frame (3). A spray frame (5) is rotatably connected to the arc surface of the adjuster (4). Several nozzles (6) are fixedly connected inside the spray frame (5). A rotating device (7) is provided on the arc surface of the spray frame (5). The rotating device (7) includes two L-shaped frames (71). Both L-shaped frames (71) are connected to the spray frame (5). The L-shaped frame (71) is fixedly connected to the arc surface. The surface of the L-shaped frame (71) is provided with a groove. The arc surface of the circular frame (2) is fixedly connected to two fixing blocks (72). The fixing blocks (72) are slidably connected to the surface of the L-shaped frame (71). A fixing rod (73) is fixedly connected to one side of the fixing block (72). An operating plate (74) is slidably connected to the arc surface of the fixing rod (73). A plug rod (75) is fixedly connected to one side of the operating plate (74). The surface of the circular frame (2) is provided with several test tube holes.
2. The rotary oscillating nitrogen blowing sample pretreatment instrument according to claim 1, characterized in that: The end of the fixing rod (73) away from the fixing block (72) is fixedly connected to the limiting plate (76), and the size of the insertion rod (75) is adapted to the size of the slot of the L-shaped frame (71).
3. The rotary oscillating nitrogen blowing sample pretreatment instrument according to claim 1, characterized in that: The arc surface of the fixing rod (73) is fitted with a first spring (77), and the two ends of the first spring (77) are fixedly connected to the operating plate (74) and the fixing block (72) respectively.
4. The rotary oscillating nitrogen blowing sample pretreatment instrument according to claim 1, characterized in that: A rubber ring (78) is fixedly connected to the surface of the test tube hole of the circular frame (2), and the inner surface of the rubber ring (78) is provided with anti-slip protrusions.
5. The rotary oscillating nitrogen blowing sample pretreatment instrument according to claim 1, characterized in that: A limiting ring (79) is fixedly connected to the surface of the nitrogen blower (1), and the limiting ring (79) is slidably connected to the arc surface of the circular frame (2).
6. The rotary oscillating nitrogen blowing sample pretreatment instrument according to claim 1, characterized in that: The surfaces of the two L-shaped frames (71) are provided with blocking devices (8). The blocking devices (8) include two support plates (81). The two support plates (81) are slidably connected to the surfaces of the two L-shaped frames (71). A ring (82) is fixedly connected to one side of the two support plates (81) that are close to each other. A plurality of blocking pads (83) are fixedly connected to one side of the ring (82). The blocking pads (83) are slidably connected to the arc surface of the nozzle (6). A drive rod (84) is threaded into the support plate (81). One end of the drive rod (84) is rotatably connected to a connecting block (85). The connecting block (85) abuts against the surface of the L-shaped frame (71).
7. The rotary oscillating nitrogen blowing sample pretreatment instrument according to claim 6, characterized in that: A positioning rod (86) is fixedly connected to the side of the connecting block (85) near the drive rod (84), and the arc surface of the positioning rod (86) is slidably connected to the support plate (81).