Modified plastic particle detection device

Abstract

The utility model relates to the field of plastic particle detection, and discloses a modified plastic particle detection device which comprises a detection box, a connecting disc is fixedly connected to the top of the inner wall of the detection box, an adjusting mechanism is arranged in the connecting disc, and the adjusting mechanism comprises a two-way screw rod, a knob and a fixing rod. A switching mechanism is arranged at the bottom of the connecting disc, a fixing mechanism is arranged on the switching mechanism, a moving block is in threaded connection with the outer wall of the two-way screw rod, the switching mechanism comprises a limiting rod, the limiting rod is fixedly connected with the bottom of the moving block, and a connecting box is slidably connected with the outer wall of the limiting rod. According to the utility model, the limiting rod is in sliding connection with the connecting box, and the fixing block is matched with the clamping block through the clamping groove, so that rapid and stable connection and separation of the connecting box and the limiting rod are realized, supporting blocks can be conveniently and rapidly switched in detection, emergency situations such as particles adhered to the outer fixing rod can be handled, and continuous and efficient detection can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of plastic particle detection, and in particular to a modified plastic particle detection device. Background Technology

[0002] Modified plastic particle testing devices are equipment used to detect and analyze various performance indicators of modified plastic particles. Modified plastics are plastics that have been processed and modified from general-purpose plastics and engineering plastics through methods such as filling, blending, and reinforcement to obtain plastics with specific properties. Testing devices are important tools to ensure that their quality and performance meet the corresponding requirements.

[0003] According to announcement number "CN219201495U", this modified plastic particle detection device belongs to the technical field of plastic particle production equipment. It mainly addresses the problem that some existing detection devices produce toxic gases during flame retardant testing of modified plastic particles, which can damage the lungs and health of test personnel if inhaled for extended periods. The proposed technical solution is as follows: A modified plastic particle detection device includes a test chamber. An L-shaped support plate is fixedly connected to the side surface of the test chamber. A gas cylinder is placed on the L-shaped support plate. The top of the gas cylinder is engaged with one end of a nozzle. The other end of the nozzle movably penetrates through the test chamber. A smoke extraction port is provided at the top of the test chamber, and a smoke purifier is fixedly connected to the upper surface of the top of the test chamber. This application, through the design of the smoke purifier, smoke extraction tube, magnetic strip, and smoke extraction port, can effectively absorb the toxic gases produced during combustion inside the test chamber, ensuring the health of test personnel and providing convenience and speed.

[0004] However, in actual use, when conducting flame retardant tests on plastic particles, the particles may melt during continuous heating. The existing fixture surface will stick to the melted particles. When the particles adhere to the fixture surface for a long time, it is not easy to clean the fixture, which affects the next plastic particle test. Therefore, improvements have been made based on the above-mentioned problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a modified plastic particle detection device, which aims to solve the problem in the prior art that "particles will melt during the continuous heating process, and the surface of the existing fixture will stick to the melted particles".

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a modified plastic particle detection device, comprising a detection box, a connecting plate fixedly connected to the top of the inner wall of the detection box, an adjustment mechanism provided inside the connecting plate, the adjustment mechanism comprising a bidirectional screw, a knob, and a fixing rod, a conversion mechanism provided at the bottom of the connecting plate, a fixing mechanism provided on the conversion mechanism, a moving block threadedly connected to the outer wall of the bidirectional screw, the conversion mechanism comprising a limiting rod, a limiting rod fixedly connected to the bottom of the moving block, a connecting box slidably connected to the outer wall of the limiting rod, a turntable rotatably connected to the top of the connecting box, a spring A fixedly connected to the bottom of the moving block, the bottom end of the spring A fixedly connected to the top of the turntable, a fixing block fixedly connected to the outer wall of the limiting rod, and a locking block fixedly connected to the inner wall of the connecting box.

[0007] As a further description of the above technical solution: the fixing block is located inside the fixing block, and the outer wall of the fixing block is provided with a slot, and the outer wall of the card block contacts the slot provided on the outer wall of the fixing block.

[0008] As a further description of the above technical solution: a slide rail is fixedly connected to the bottom of the connecting box, and a plug rod is inserted into the outer wall of the slide rail.

[0009] As a further description of the above technical solution: the fixing mechanism includes a support block, the outer wall of the slide rail is slidably connected to the support block, the inner wall of the support block is fixedly connected to an inner fixing rod, the inner wall of the inner fixing rod is fixedly connected to a spring B, and the top end of the spring B is fixedly connected to an outer fixing rod.

[0010] As a further description of the above technical solution: the outer wall of the outer fixing rod is slidably connected to the inner wall of the inner fixing rod, and the top end of the outer fixing rod extends outward through the support block.

[0011] As a further description of the above technical solution: there are two sets of support blocks, and the two sets of support blocks are symmetrically arranged at the left and right ends of the bottom of the connecting box, and the bottom of the support block is in contact with the outer wall of the plug rod.

[0012] As a further description of the above technical solution: the top of the detection box is fixedly connected to a smoke inlet, the rear end of the detection box is fixedly connected to a heating nozzle, and the front surface of the detection box is hinged to an observation door.

[0013] As a further description of the above technical solution: a bidirectional screw is rotatably connected to the inner wall of the connecting plate, a knob is fixedly connected to the right extension end of the bidirectional screw, a fixing rod is inserted into the outer wall of the knob, and the top end of the fixing rod is inserted into the right side of the outer wall of the connecting plate.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, a limiting rod is slidably connected to the connecting box, providing precise guidance for the connecting box and ensuring its fixed movement path. A turntable gives the connecting box rotational capability, allowing its angle to be adjusted as needed. Spring A buffers the impact of the connecting box's movement while also assisting in its reset and fixation. The fixing block and the locking block cooperate through a slot to achieve rapid and stable connection and separation of the connecting box and the limiting rod, facilitating quick switching of support blocks during testing and addressing unexpected situations such as particles adhering to the external fixing rod, ensuring continuous and efficient testing.

[0016] 2. In this utility model, an elastic fixing assembly consisting of an inner fixing rod, spring B, and an outer fixing rod is supported by a support block. The two sets of symmetrically distributed support blocks work together to evenly and stably fix the particles and prevent particle displacement. Spring B allows the outer fixing rod to adapt to the particle size and heating deformation, and can dynamically adjust the fixing force during heating to always tightly clamp the particles. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a modified plastic particle detection device proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the bottom structure of the connecting plate of a modified plastic particle detection device proposed in this utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of the connection box of a modified plastic particle detection device proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the support block for a modified plastic particle detection device proposed in this utility model.

[0021] Legend:

[0022] 1. Detection box; 2. Smoke inlet; 3. Observation door; 4. Connecting plate; 5. Adjustment mechanism; 6. Moving block; 7. Conversion mechanism; 711. Limiting rod; 712. Connecting box; 713. Spring A; 714. Fixing block; 715. Locking block; 716. Slide rail; 717. Insert rod; 8. Fixing mechanism; 811. Support block; 812. Inner fixing rod; 813. Spring B; 814. Outer fixing rod. Detailed Implementation

[0023] 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.

[0024] Reference Figures 1-3 This utility model provides an embodiment of a modified plastic particle detection device, comprising a detection box 1. A connecting plate 4 is fixedly connected to the top of the inner wall of the detection box 1. An adjustment mechanism 5 is provided inside the connecting plate 4. The adjustment mechanism 5 includes a bidirectional screw, a knob, and a fixing rod, which is an existing structure. A conversion mechanism 7 is provided at the bottom of the connecting plate 4. A fixing mechanism 8 is provided on the conversion mechanism 7. A moving block 6 is threadedly connected to the outer wall of the bidirectional screw. The conversion mechanism 7 includes a limiting rod 711, which plays a key guiding and limiting role. The bottom of the moving block 6 is fixedly connected to the limiting rod 711. A connecting box 712 is slidably connected to the outer wall of 711. A turntable is rotatably connected to the top of the connecting box 712. The turntable acts as a flexible steering joint, giving the connecting box 712 the ability to adjust at multiple angles to adapt to different testing needs. A spring A713 is fixedly connected to the bottom of the moving block 6. The bottom end of the spring A713 is fixedly connected to the top of the turntable, which can provide appropriate cushioning during component movement and assist in the reset and fixation of the connecting box 712 under specific operations. A fixing block 714 is fixedly connected to the outer wall of the limiting rod 711, and a fixing block 714 is fixedly connected to the inner wall of the connecting box 712. A locking block 715 is attached, and a fixing block 714 is located inside the fixing block 714. The outer wall of the fixing block 714 has a slot, which is designed to cooperate with the locking block 715, enabling quick and stable connection and separation between the connecting box 712 and the limiting rod 711. This lays a solid foundation for subsequent conversion operations. The outer wall of the locking block 715 contacts the slot on the outer wall of the fixing block 714. A slide rail 716 is fixedly connected to the bottom of the connecting box 712, and a plug rod 717 is inserted into the outer wall of the slide rail 716. The plug rod 717 acts as a reliable locking bolt, ensuring the support block 811 is securely positioned at critical moments. The position is fixed to prevent accidental sliding. The top of the test box 1 is fixedly connected to the smoke port 2, and the rear end of the test box 1 is fixedly connected to the heating nozzle. The front surface of the test box 1 is hinged to the observation door 3 (the smoke port 2 and the heating nozzle are existing structures in the comparative example). The inner wall of the connecting plate 4 is rotatably connected to a bidirectional screw. The right extension end of the bidirectional screw is fixedly connected to a knob. The outer wall of the knob is inserted with a fixing rod. The top end of the fixing rod is inserted into the right side of the outer wall of the connecting plate 4, ensuring that every link from the knob rotation input to the precise transmission of the bidirectional screw is stable and reliable, realizing the efficient operation of the entire adjustment system.

[0025] Reference Figure 4The fixing mechanism 8 includes a support block 811. The support block 811 is slidably connected to the outer wall of the slide rail 716. An inner fixing rod 812 is fixedly connected to the inner wall of the support block 811. The inner fixing rod 812 provides a stable support structure for the subsequent elastic fixing components. A spring B813 is fixedly connected to the inner wall of the inner fixing rod 812. An outer fixing rod 814 is fixedly connected to the top of the spring B813. The outer wall of the outer fixing rod 814 is slidably connected to the inner wall of the inner fixing rod 812. The top of the outer fixing rod 814 extends outward through the support block 811. There are two sets of support blocks 811. Setting two sets of support blocks 811 facilitates quick switching for subsequent use. The two sets of support blocks 811 are symmetrically arranged at the left and right ends of the bottom of the connecting box 712. The bottom of the support block 811 contacts the outer wall of the insertion rod 717.

[0026] Working principle: During use, the operator rotates the knob to drive the bidirectional screw, which in turn moves the bottom support block 811. The external fixing rod 814 connected inside the support block 811 clamps and fixes particles of different specifications. During the heating process, the particles slowly melt, and the external fixing rod 814 is pushed to move under the action of the spring B813, thus adapting to the deformation of the particles during the heating process and firmly fixing the particles to prevent them from falling off. When one set of external fixing rods 814 sticks to the melted particles, the connecting box 712 is pressed upward, causing the locking block 715 to disengage from the slot of the fixing block 714. Under the action of the turntable set on the top of the connecting box 712, the connecting box 712 is rotated, and under the action of the spring A713, the locking block 715 inside the connecting box 712 is fixed in the fixing block 714, thus quickly switching the support block 811. The support block 811 can also be removed from the slide rail 716 individually, so that the removed support block 811 can be thoroughly cleaned.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modified plastic particle detection apparatus comprising a detection tank (1), characterized in that: The inner wall top of the detection box (1) is fixedly connected with a connecting disc (4), the inside of the connecting disc (4) is provided with an adjusting mechanism (5), the adjusting mechanism (5) comprises a bidirectional screw rod, a knob, a fixed rod, the bottom of the connecting disc (4) is provided with a conversion mechanism (7), the conversion mechanism (7) is provided with a fixing mechanism (8), the outer wall of the bidirectional screw rod is threadedly connected with a moving block (6), the conversion mechanism (7) comprises a limiting rod (711), the bottom of the moving block (6) is fixedly connected with a limiting rod (711), the outer wall of the limiting rod (711) is slidably connected with a connecting box (712), the top of the connecting box (712) is rotatably connected with a rotating disc, the bottom of the moving block (6) is fixedly connected with a spring A (713), the bottom end of the spring A (713) is fixedly connected to the top of the rotating disc, the outer wall of the limiting rod (711) is fixedly connected with a fixed block (714), the inner wall of the connecting box (712) is fixedly connected with a clamping block (715).

2. The modified plastic particle detection apparatus of claim 1, wherein: The fixed block (714) is located in the inside of the fixed block (714), the outer wall of the fixed block (714) is provided with a clamping groove, and the outer wall of the clamping block (715) is in contact with the clamping groove provided on the outer wall of the fixed block (714).

3. The modified plastic particle detection apparatus of claim 1, wherein: The bottom of the connecting box (712) is fixedly connected with a sliding rail (716), and the outer wall of the sliding rail (716) is inserted with a plug rod (717).

4. The modified plastic particle detection apparatus of claim 3, wherein: The fixing mechanism (8) comprises a supporting block (811), the outer wall of the sliding rail (716) is slidably connected with a supporting block (811), the inner wall of the supporting block (811) is fixedly connected with an inner fixed rod (812), the inner wall of the inner fixed rod (812) is fixedly connected with a spring B (813), and the top end of the spring B (813) is fixedly connected with an outer fixed rod (814).

5. The modified plastic particle detection apparatus of claim 4, wherein: The outer wall of the outer fixed rod (814) is slidably connected to the inner wall of the inner fixed rod (812), and the top end of the outer fixed rod (814) extends outwardly through the supporting block (811).

6. The modified plastic particle detection apparatus of claim 4, wherein: The number of the supporting block (811) is two groups, and the two groups of supporting blocks (811) are respectively and symmetrically arranged at the left and right ends of the bottom of the connecting box (712), and the bottom of the supporting block (811) is in contact with the outer wall of the plug rod (717).

7. The modified plastic particle detection apparatus of claim 1, wherein: The top of the detection box (1) is fixedly connected with a smoking port (2), the rear end of the detection box (1) is fixedly connected with a heating nozzle, and the front surface of the detection box (1) is hingedly connected with an observation door (3).

8. The modified plastic particle detection apparatus of claim 1, wherein: The inner wall of the connecting disc (4) is rotatably connected with a bidirectional screw rod, the right extension end of the bidirectional screw rod is fixedly connected with a knob, the outer wall of the knob is inserted with a fixed rod, and the top end of the fixed rod is inserted into the outer wall right side of the connecting disc (4).

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