An automatic press for low concentration of particulate matter

Abstract

This invention provides an automatic membrane press for low-concentration particulate matter, belonging to the technical field of detection equipment. It includes a main support frame, with a fixed side box horizontally fixed to one side of the main support frame. A handle side rod is horizontally fixed to the end of the fixed side box away from the main support frame. The automatic membrane press provided by this invention replaces the traditional manual membrane pressing method with automated operation, greatly improving operational efficiency. Operators only need to set the membrane pressing parameters and place the sampling head to start the equipment for membrane pressing, without requiring professional skills or experience. Operators can select the appropriate movable pressing head for membrane pressing according to actual detection needs, eliminating the need for multiple devices for different sampling heads. Because the automated membrane press ensures consistent pressure and uniformity in each pressing and avoids physical damage to the filter membrane that may be caused during manual pressing, it helps improve the accuracy of the detection results.

Description

Technical Field

[0001] This invention relates to the field of detection equipment technology, and more specifically, to an automatic film press for low-concentration particulate matter. Background Technology

[0002] In the fields of environmental monitoring and industrial analysis, the detection and analysis of low-concentration particulate matter is a crucial task. These particles may originate from air pollution, industrial production processes, or specific experimental research environments; their concentrations are often extremely low, but their impact on environmental quality, human health, and production processes cannot be ignored. To accurately detect these low-concentration particulate matter, high-precision sampling equipment is required, with the sampling head being one of the key components.

[0003] The design of the sampling head must effectively capture and retain particulate matter, while ensuring the stability and representativeness of the particles during subsequent analysis. During sampling, a filter membrane is typically placed inside the sampling head to capture airborne particulate matter. To ensure the stability and sealing of the filter membrane during sampling, a stainless steel support mesh is placed above it for support, and a sealing aluminum ring is used to fix the filter membrane and support mesh to the open end of the sampling head. However, traditional manual membrane pressing methods are cumbersome, inefficient, and prone to introducing human error. Manual membrane pressing requires operators with certain skills and experience, and it is difficult to guarantee consistent pressure and uniformity each time, thus affecting the sealing of the sampling head and the fixation effect of the filter membrane. Furthermore, the manual membrane pressing process can easily cause physical damage to the filter membrane, further affecting the accuracy of the test results. Summary of the Invention

[0004] The purpose of this invention is to address the problems of cumbersome operation, low efficiency, and susceptibility to human error associated with traditional manual membrane pressing methods. Manual membrane pressing requires skilled and experienced operators, and it is difficult to ensure consistent pressure and uniformity in each pressing, thus affecting the sealing of the sampling head and the fixation effect of the filter membrane. Furthermore, the manual membrane pressing process can easily cause physical damage to the filter membrane, further affecting the accuracy of the detection results. Therefore, this invention proposes an automatic membrane pressing device for low-concentration particulate matter.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: A sampling head pressing device is applied to testing equipment to improve the above-mentioned problems.

[0006] The present invention is as follows: Includes a main support frame, a fixed side box is horizontally fixedly connected to one side of the main support frame, a handle side rod is horizontally fixedly connected to the fixed side box at the end away from the main support frame, and a movable tray is horizontally connected to the side of the main support frame away from the fixed side box. The main support frame has a horizontally opening top groove on its bottom surface. An adjusting turntable is horizontally engaged with the inner side of the top groove. A sealing base plate is horizontally fixedly installed on the bottom surface of the adjusting turntable. Through holes are evenly distributed on the bottom surface of the sealing base plate. An adjusting motor is fixedly connected to the top surface of the main support frame. A pressing cylinder is vertically fixedly connected to the top surface of the main support frame. Movable inner grooves are evenly distributed on the top surface of the adjusting turntable. A top-clamping block is fixedly connected to the center of the top surface of the adjusting turntable. A movable pressure head is vertically inserted into the inner side of the movable inner groove. A bottom clamping hole and a storage groove are opened on the bottom surface of the main support frame. A pressing base plate is fixedly connected to the output end of the pressing cylinder. A side limiting block is fixedly connected to the outer side of the movable pressure head. Pressing claws are evenly distributed at the bottom end of the movable pressure head. A vertical inner groove is vertically opened on the inner side of the movable inner groove. A top-connecting spring is fixedly connected to the inner side of the vertical inner groove. The movable pallet has a horizontal through-slot on its side. A snap-fit ​​side strip is horizontally fixed to one side of the movable pallet. A mating through hole is opened on the top surface of the movable pallet. A rotating base is horizontally snapped to the inner side of the through-slot. A discharge through hole is evenly opened on the top surface of the rotating base. A limit block is symmetrically snapped to the inner top and bottom surfaces of the through-slot. A side positioning hole is opened on the side of the snap-fit ​​side strip. A stabilizing hole is evenly opened on the top surface of the rotating base. A support shaft is fixedly inserted at the center of the rotating base. A mating bottom ring is horizontally fixed to the inner bottom surface of the discharge through hole.

[0007] As a preferred technical solution of the present invention, the bottom surface of the sealing base plate is provided with uniformly spaced mounting holes near the edge. A fixing screw is inserted into the inner side of the mounting hole. The sealing base plate is fixedly installed at the bottom end of the adjusting turntable by the fixing screw. A side slot is horizontally provided on one side of the main support frame. A toggle block is engaged on the inner side of the side slot. A horizontal groove is horizontally provided on one side of the main support frame. A side through hole is provided on the inner side of the horizontal groove. A positioning pin is inserted into the inner side of the side through hole. One end of the positioning pin is fixedly connected to one end of the toggle block, and the other end of the positioning pin is inserted into the inner side of the side positioning hole. The horizontal groove is located on the side of the main support frame near the bottom end, and one end of the horizontal groove is open.

[0008] As a preferred technical solution of the present invention, a display screen is fixedly embedded on the top surface of the fixed side box, setting keys are evenly snapped onto the top surface of the fixed side box, a control main board is fixedly disposed on the inner side of the fixed side box, a setting main board is fixedly disposed on the inner side of the fixed side box, the display screen, setting keys, control main board and setting main board are electrically connected to each other, an anti-slip rubber sleeve is fixedly sleeved on the outer side of the handle side rod, and a power cord is fixedly connected to the end of the handle side rod away from the fixed side box.

[0009] As a preferred technical solution of the present invention, the main support frame is made of lightweight aluminum alloy and is L-shaped. The top groove is horizontally opened at the center line of the bottom surface of the main support frame. The top surface of the adjusting turntable is connected to the bottom opening end of the bottom card hole. The sealing base plate is fixedly connected to the bottom surface of the adjusting turntable by fixing screws. There are multiple through holes, which are arranged in a ring at equal intervals near the edge of the bottom surface of the sealing base plate. The through holes and the movable inner groove are all connected to each other.

[0010] As a preferred technical solution of the present invention, the output end of the regulating motor extends vertically downward and is inserted into the inner side of the bottom card hole, and the output end is fixedly connected to the center of the top of the top card rotating block. The extrusion cylinder is fixedly located on the side near the regulating motor, and the extrusion cylinder adopts an electric cylinder structure. The output end of the extrusion cylinder extends vertically downward and is inserted into the inner side of the storage groove. The extended bottom end is fixedly connected to the center of the top surface of the extrusion base plate. The movable inner grooves are all vertically through-hole, and the top of the movable inner grooves are correspondingly connected to the bottom opening of the storage groove to maintain communication.

[0011] As a preferred technical solution of the present invention, the top of the top card block is snapped into the inner side of the bottom card hole, there are multiple movable pressure heads, and the multiple movable pressure heads are all set with dimensions corresponding to the sampling heads of multiple specifications. The storage groove is set on the side near the bottom card hole, and the bottom opening of the storage groove is connected to the top opening of the movable inner groove to maintain communication. The bottom surface of the extrusion base plate is connected to the top of the movable pressure head.

[0012] As a preferred technical solution of the present invention, one end of the side limiting block is snapped into the inner side of the vertical inner groove, and the pressing claw head forms a wrapping pressing setting on the horn-shaped sampling head end by squeezing and closing, and the top end of the top connecting spring is connected to the bottom surface of the side limiting block.

[0013] As a preferred technical solution of the present invention, the side of the movable pallet is horizontally connected to the side opening end of the horizontal slot, the snap-fit ​​side strip is horizontally snap-fitted to the inner side of the horizontal slot, the through slot is horizontally opened at the center line of the side of the movable pallet, and the two sides of the through slot are open, the matching through hole is vertically opened at the top surface of the movable pallet near the edge, and the matching through hole and the material discharge through hole are connected to each other, and the rotating chassis is rotatably installed on the inner side of the through slot through the central support shaft.

[0014] As a preferred technical solution of the present invention, the number and arrangement of the discharge through holes are consistent with the movable inner groove. The horn-shaped sampling head is inserted through and installed on the inner side of the discharge through hole. The side positioning hole is opened on the side of the snap-fit ​​side strip near one end. The limiting top block is snap-fitted on the inner side of the stabilizing hole.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: In the solution of this invention: 1. The automated film pressing process ensures consistent pressure and uniformity in each pressing, avoiding human error that may be introduced during manual pressing. The precise design of the movable pressure head and the stable operation of the compression cylinder allow the sealing aluminum ring to tightly wrap around the outer edge of the sampling head opening, thus guaranteeing film quality and the sealing performance of the sampling head. The movable pressure head is available in multiple sizes to accommodate sampling heads of different dimensions, improving the applicability and flexibility of the equipment. Operators can select the appropriate movable pressure head for film pressing based on actual testing needs, eliminating the need for multiple devices for different sampling head sizes.

[0016] 2. The automatic film press provided by this invention has a simple structure and is easy to operate, reducing operational difficulty and labor intensity. Operators only need simple training to operate the equipment, without the need for extensive learning and practical experience. The automatic film press for low-concentration particulate matter provided by this invention replaces the traditional manual film pressing method with automated operation, greatly improving operational efficiency. Operators only need to set the film pressing parameters and place the sampling head to start the equipment for film pressing, without requiring professional skills or experience.

[0017] 3. The automated membrane press ensures consistent pressure and uniformity in each pressing, avoiding physical damage to the filter membrane that may occur during manual pressing, thus improving the accuracy of test results. This is particularly important for low-concentration particulate matter detection, which requires high-precision results. The main support frame is made of lightweight aluminum alloy, ensuring structural strength while reducing weight. Simultaneously, the rational mechanical structure design and intelligent control system make the equipment more stable and reliable during operation, reducing the possibility of malfunctions. The automatic membrane press for low-concentration particulate matter provided by this invention has broad application prospects in environmental monitoring, industrial production, and experimental research. Its efficient and accurate membrane pressing operation helps improve the overall level of low-concentration particulate matter detection, thereby promoting the development of environmental protection and health monitoring. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional connection structure provided by the present invention; Figure 2 This is a schematic diagram of the overall three-dimensional bottom-view connection structure provided by the present invention; Figure 3 This is a schematic diagram of the overall three-dimensional top view connection structure provided by the present invention; Figure 4 This is a schematic diagram of the overall three-dimensional side view connection structure provided by the present invention; Figure 5 This is a schematic diagram of the overall three-dimensional end portion structure provided by the present invention; Figure 6 This is a schematic diagram of the overall separate side view connection structure provided by the present invention; Figure 7 This is a schematic diagram of the overall separate front view connection structure provided by the present invention; Figure 8 A schematic diagram of the overall separate bottom-view connection structure provided by the present invention; Figure 9 This is a schematic diagram of the overall separate top-view connection structure provided by the present invention; Figure 10 This is a schematic diagram showing the detailed structure of the three-dimensional connection of the adjusting turntable provided by the present invention; Figure 11 This is a three-dimensional bottom view of the main support frame connection structure provided by the present invention; Figure 12 This is a top view schematic diagram of the connection structure of the adjusting turntable provided by the present invention; Figure 13 This is a schematic diagram showing the detailed structure of the movable pressure head connection provided by the present invention; Figure 14 This is a schematic diagram showing the detailed internal connection structure of the active inner groove provided by the present invention.

[0019] The image shows: 1. Main support frame; 101. Top groove; 102. Adjusting turntable; 103. Sealing base plate; 104. Through hole; 105. Mounting connection hole; 106. Fixing screw; 107. Side locking groove; 108. Moving inner block; 109. Horizontal locking groove; 110. Adjusting motor; 111. Extrusion cylinder; 112. Side through hole; 113. Positioning pin; 114. Movable inner groove; 115. Top locking turntable; 116. Movable pressure head; 117. Bottom locking hole; 118. Storage groove; 119. Extrusion base plate; 120. Side limiting block; 12 1. Pressing claw head; 122. Vertical inner groove; 123. Top connecting spring; 2. Fixed side box; 201. Display screen; 202. Setting key; 203. Control main board; 204. Setting main board; 3. Handle side rod; 301. Anti-slip rubber sleeve; 302. Power cord; 4. Movable tray; 401. Through horizontal groove; 402. Snap-fit ​​side strip; 403. Matching through hole; 404. Rotating chassis; 405. Material discharge through hole; 406. Limiting top block; 407. Side positioning hole; 408. Stabilizing hole; 409. Support shaft; 410. Matching bottom ring. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Example 1: like Figures 1-14 As shown, the present invention provides a technical solution: an automatic film press for low-concentration particulate matter, including a main support frame 1, a fixed side box 2 horizontally fixedly connected to one side of the main support frame 1, a handle side rod 3 horizontally fixedly connected to the end of the fixed side box 2 away from the main support frame 1, a display screen 201 fixedly embedded on the top surface of the fixed side box 2, setting keys 202 uniformly snapped onto the top surface of the fixed side box 2, a control main board 203 fixedly installed on the inner side of the fixed side box 2, a setting main board 204 fixedly installed on the inner side of the fixed side box 2, the display screen 201, setting keys 202, control main board 203 and setting main board 204 are electrically connected to each other, an anti-slip rubber sleeve 301 is fixedly sleeved on the outer side of the handle side rod 3, a power cord 302 is fixedly connected to the end of the handle side rod 3 away from the fixed side box 2, and a movable tray 4 is horizontally connected to the side of the main support frame 1 away from the fixed side box 2. The bottom surface of the main support frame 1 has a horizontally opening mating top groove 101. An adjusting turntable 102 is horizontally engaged with the inner side of the mating top groove 101. A sealing base plate 103 is horizontally fixedly installed on the bottom surface of the adjusting turntable 102. Through holes 104 are evenly distributed on the bottom surface of the sealing base plate 103. The main support frame 1 is made of lightweight aluminum alloy and is L-shaped. The mating top groove 101 is horizontally positioned at the center line of the bottom surface of the main support frame 1. The top surface of the adjusting turntable 102 is engaged with the bottom opening of the bottom locking hole 117. The sealing base plate 103 is fixedly connected to the bottom surface of the adjusting turntable 102 by a fixing screw 106. Multiple through holes 104 are arranged in a ring at equal intervals near the edge of the bottom surface of the sealing base plate 103. Each through hole 104 and the movable inner groove 114 corresponds to each other to maintain communication. The sealing base plate 103 has evenly spaced mounting holes 105 near its edge on its bottom surface. Fixing screws 106 are inserted into the inner sides of the mounting holes 105. The sealing base plate 103 is fixedly installed at the bottom of the adjusting turntable 102 via the fixing screws 106. A side locking groove 107 is horizontally provided on one side of the main support frame 1. A toggle block 108 is engaged with the inner side of the side locking groove 107. There is a horizontal slot 109, and a side through hole 112 is opened on the inner side of the horizontal slot 109. A positioning pin 113 is inserted into the inner side of the side through hole 112. One end of the positioning pin 113 is fixedly connected to one end of the actuating inner block 108, and the other end of the positioning pin 113 is inserted into the inner side of the side positioning hole 407. The horizontal slot 109 is opened on the side of the main support frame 1 near the bottom end, and one end of the horizontal slot 109 is open.

[0022] The automated operation replaces the traditional manual film pressing method, greatly improving operational efficiency. Operators only need to set the film pressing parameters and place the sampling head to start the film pressing operation, without needing professional skills or experience.

[0023] Example 2: like Figures 1-14As shown, the present invention provides a technical solution: an automatic film press for low-concentration particulate matter, including a main support frame 1, a fixed side box 2 horizontally fixedly connected to one side of the main support frame 1, a handle side rod 3 horizontally fixedly connected to the end of the fixed side box 2 away from the main support frame 1, a display screen 201 fixedly embedded on the top surface of the fixed side box 2, setting keys 202 uniformly snapped onto the top surface of the fixed side box 2, a control main board 203 fixedly installed on the inner side of the fixed side box 2, a setting main board 204 fixedly installed on the inner side of the fixed side box 2, the display screen 201, setting keys 202, control main board 203 and setting main board 204 are electrically connected to each other, an anti-slip rubber sleeve 301 is fixedly sleeved on the outer side of the handle side rod 3, a power cord 302 is fixedly connected to the end of the handle side rod 3 away from the fixed side box 2, and a movable tray 4 is horizontally connected to the side of the main support frame 1 away from the fixed side box 2. The bottom surface of the main support frame 1 has a horizontally opening mating top groove 101. An adjusting turntable 102 is horizontally engaged with the inner side of the mating top groove 101. A sealing base plate 103 is horizontally fixedly installed on the bottom surface of the adjusting turntable 102. Through holes 104 are evenly distributed on the bottom surface of the sealing base plate 103. The main support frame 1 is made of lightweight aluminum alloy and is L-shaped. The mating top groove 101 is horizontally positioned at the center line of the bottom surface of the main support frame 1. The top surface of the adjusting turntable 102 is engaged with the bottom opening of the bottom locking hole 117. The sealing base plate 103 is fixedly connected to the bottom surface of the adjusting turntable 102 by a fixing screw 106. Multiple through holes 104 are arranged in a ring with equal spacing between them. The main support frame 102 is arranged in a grid pattern on the bottom surface of the sealing base plate 103 near the edge. The through holes 104 and the movable inner grooves 114 are all connected to each other. The top surface of the main support frame 1 is fixedly connected to the adjusting motor 110. The bottom surface of the sealing base plate 103 near the edge is evenly provided with mounting holes 105. The inner side of the mounting holes 105 is inserted with fixing screws 106. The sealing base plate 103 is fixedly installed at the bottom end of the adjusting turntable 102 by fixing screws 106. A side locking groove 107 is horizontally provided on one side of the main support frame 1. The inner side of the side locking groove 107 is engaged with a toggle block 108. A horizontal slot 109 is horizontally provided on one side of the main support frame 1. The inner side of the horizontal slot 109 is provided with a side through hole 112. A positioning pin 113 is inserted into the inner side of the side through hole 112. One end of the positioning pin 113 is fixedly connected to one end of the actuating inner block 108, and the other end of the positioning pin 113 is inserted into the inner side of the side positioning hole 407. A horizontal slot 109 is opened on the side of the main support frame 1 near the bottom, and one end of the horizontal slot 109 is open. A pressing cylinder 111 is vertically fixedly connected to the top surface of the main support frame 1. Movable inner grooves 114 are evenly opened on the top surface of the adjusting turntable 102. The output end of the adjusting motor 110 extends vertically downward and is inserted into the inner side of the bottom locking hole 117, and the output end is fixedly connected to the center of the top of the top locking turntable 115. The pressing cylinder 111 is fixedly located near the adjusting motor 110. The extrusion cylinder 111 is located on the side and uses an electric cylinder structure. The output end of the extrusion cylinder 111 extends vertically downward and is inserted into the inner side of the storage groove 118. The bottom end of the extension is fixedly connected to the center of the top surface of the extrusion base plate 119. The movable inner grooves 114 are all vertically through-holes, and the top of the movable inner grooves 114 are connected to the bottom opening of the storage groove 118 to maintain communication. A top locking block 115 is fixedly connected to the center of the top surface of the adjusting turntable 102. A movable pressure head 116 is vertically inserted into the inner side of the movable inner groove 114. The bottom surface of the main support frame 1 has a bottom locking hole 117 and a storage groove 118. The top of the top locking block 115 is locked into the inner side of the bottom locking hole 117.There are multiple movable pressure heads 116, and each movable pressure head 116 is configured with dimensions corresponding to various sampling heads. A storage slot 118 is located on the side near the bottom card hole 117, and the bottom opening of the storage slot 118 is connected to the top opening of the movable inner slot 114 to maintain communication. The bottom surface of the extrusion base plate 119 is connected to the top of the movable pressure head 116.

[0024] The automated pressing process ensures consistent pressure and uniformity in each pressing, avoiding human error that may be introduced during manual pressing. The precise design of the movable pressing head 116 and the stable operation of the extrusion cylinder 111 allow the sealing aluminum ring to tightly wrap around the outer edge of the sampling head opening.

[0025] Example 3: like Figures 1-14 As shown, the present invention provides a technical solution: an automatic film press for low-concentration particulate matter, including a main support frame 1, a fixed side box 2 horizontally fixedly connected to one side of the main support frame 1, a handle side rod 3 horizontally fixedly connected to the end of the fixed side box 2 away from the main support frame 1, a display screen 201 fixedly embedded on the top surface of the fixed side box 2, setting keys 202 uniformly snapped onto the top surface of the fixed side box 2, a control main board 203 fixedly installed on the inner side of the fixed side box 2, a setting main board 204 fixedly installed on the inner side of the fixed side box 2, the display screen 201, setting keys 202, control main board 203 and setting main board 204 are electrically connected to each other, an anti-slip rubber sleeve 301 is fixedly sleeved on the outer side of the handle side rod 3, a power cord 302 is fixedly connected to the end of the handle side rod 3 away from the fixed side box 2, and a movable tray 4 is horizontally connected to the side of the main support frame 1 away from the fixed side box 2. The bottom surface of the main support frame 1 has a horizontally opening mating top groove 101. An adjusting turntable 102 is horizontally engaged with the inner side of the mating top groove 101. A sealing base plate 103 is horizontally fixedly installed on the bottom surface of the adjusting turntable 102. Through holes 104 are evenly distributed on the bottom surface of the sealing base plate 103. The main support frame 1 is made of lightweight aluminum alloy and is L-shaped. The mating top groove 101 is horizontally positioned at the center line of the bottom surface of the main support frame 1. The top surface of the adjusting turntable 102 is engaged with the bottom opening of the bottom locking hole 117. The sealing base plate 103 is fixedly connected to the bottom surface of the adjusting turntable 102 by a fixing screw 106. Multiple through holes 104 are arranged in a ring with equal spacing between them. The main support frame 102 is arranged in a grid pattern on the bottom surface of the sealing base plate 103 near the edge. The through holes 104 and the movable inner grooves 114 are all connected to each other. The top surface of the main support frame 1 is fixedly connected to the adjusting motor 110. The bottom surface of the sealing base plate 103 near the edge is evenly provided with mounting holes 105. The inner side of the mounting holes 105 is inserted with fixing screws 106. The sealing base plate 103 is fixedly installed at the bottom end of the adjusting turntable 102 by fixing screws 106. A side locking groove 107 is horizontally provided on one side of the main support frame 1. The inner side of the side locking groove 107 is engaged with a toggle block 108. A horizontal slot 109 is horizontally provided on one side of the main support frame 1. The inner side of the horizontal slot 109 is provided with a side through hole 112. A positioning pin 113 is inserted into the inner side of the side through hole 112. One end of the positioning pin 113 is fixedly connected to one end of the actuating inner block 108, and the other end of the positioning pin 113 is inserted into the inner side of the side positioning hole 407. A horizontal slot 109 is opened on the side of the main support frame 1 near the bottom, and one end of the horizontal slot 109 is open. A pressing cylinder 111 is vertically fixedly connected to the top surface of the main support frame 1. Movable inner grooves 114 are evenly opened on the top surface of the adjusting turntable 102. The output end of the adjusting motor 110 extends vertically downward and is inserted into the inner side of the bottom locking hole 117, and the output end is fixedly connected to the center of the top of the top locking turntable 115. The pressing cylinder 111 is fixedly located near the adjusting motor 110. The extrusion cylinder 111 is located on the side and uses an electric cylinder structure. The output end of the extrusion cylinder 111 extends vertically downward and is inserted into the inner side of the storage groove 118. The bottom end of the extension is fixedly connected to the center of the top surface of the extrusion base plate 119. The movable inner grooves 114 are all vertically through-holes, and the top of the movable inner grooves 114 are connected to the bottom opening of the storage groove 118 to maintain communication. A top locking block 115 is fixedly connected to the center of the top surface of the adjusting turntable 102. A movable pressure head 116 is vertically inserted into the inner side of the movable inner groove 114. The bottom surface of the main support frame 1 has a bottom locking hole 117 and a storage groove 118. The output end of the extrusion cylinder 111 is fixedly connected to the extrusion base plate 119.The top of the top card rotating block 115 is snapped into the inner side of the bottom card hole 117. Multiple movable pressure heads 116 are present, each with dimensions corresponding to various sampling heads. A storage slot 118 is located near the side of the bottom card hole 117, and its bottom opening is connected to the top opening of the movable inner slot 114. The bottom surface of the extrusion base plate 119 is connected to the top of the movable pressure head 116. The outer side of the movable pressure head 116 is fixedly connected to... The side limiting block 120 has pressing claws 121 evenly distributed at the bottom end of the movable pressing head 116. A vertical inner groove 122 is vertically formed on the inner side of the movable inner groove 114. A top-connecting spring 123 is fixedly connected to the inner side of the vertical inner groove 122. One end of the side limiting block 120 is engaged with the inner side of the vertical inner groove 122. The pressing claws 121, through compression, form a wrapping pressing arrangement on the trumpet-shaped sampling head end. The top end of the top-connecting spring 123 is positioned at the bottom surface of the side limiting block 120.

[0026] The movable pressure head 116 is designed with multiple specifications to accommodate sampling head requirements of different sizes, improving the applicability and flexibility of the equipment. Operators can select the appropriate movable pressure head for membrane pressing according to actual testing needs, eliminating the need to equip multiple devices for different sampling head specifications.

[0027] Example 4: like Figures 1-14 As shown, the present invention provides a technical solution: an automatic film press for low-concentration particulate matter, including a main support frame 1, a fixed side box 2 horizontally fixedly connected to one side of the main support frame 1, a handle side rod 3 horizontally fixedly connected to the end of the fixed side box 2 away from the main support frame 1, a display screen 201 fixedly embedded on the top surface of the fixed side box 2, setting keys 202 uniformly snapped onto the top surface of the fixed side box 2, a control main board 203 fixedly installed on the inner side of the fixed side box 2, a setting main board 204 fixedly installed on the inner side of the fixed side box 2, the display screen 201, setting keys 202, control main board 203 and setting main board 204 are electrically connected to each other, an anti-slip rubber sleeve 301 is fixedly sleeved on the outer side of the handle side rod 3, a power cord 302 is fixedly connected to the end of the handle side rod 3 away from the fixed side box 2, and a movable tray 4 is horizontally connected to the side of the main support frame 1 away from the fixed side box 2. The bottom surface of the main support frame 1 has a horizontally opening mating top groove 101. An adjusting turntable 102 is horizontally engaged with the inner side of the mating top groove 101. A sealing base plate 103 is horizontally fixedly installed on the bottom surface of the adjusting turntable 102. Through holes 104 are evenly distributed on the bottom surface of the sealing base plate 103. The main support frame 1 is made of lightweight aluminum alloy and is L-shaped. The mating top groove 101 is horizontally positioned at the center line of the bottom surface of the main support frame 1. The top surface of the adjusting turntable 102 is engaged with the bottom opening of the bottom locking hole 117. The sealing base plate 103 is fixedly connected to the bottom surface of the adjusting turntable 102 by a fixing screw 106. Multiple through holes 104 are arranged in a ring with equal spacing between them. The main support frame 102 is arranged in a grid pattern on the bottom surface of the sealing base plate 103 near the edge. The through holes 104 and the movable inner grooves 114 are all connected to each other. The top surface of the main support frame 1 is fixedly connected to the adjusting motor 110. The bottom surface of the sealing base plate 103 near the edge is evenly provided with mounting holes 105. The inner side of the mounting holes 105 is inserted with fixing screws 106. The sealing base plate 103 is fixedly installed at the bottom end of the adjusting turntable 102 by fixing screws 106. A side locking groove 107 is horizontally provided on one side of the main support frame 1. The inner side of the side locking groove 107 is engaged with a toggle block 108. A horizontal slot 109 is horizontally provided on one side of the main support frame 1. The inner side of the horizontal slot 109 is provided with a side through hole 112. A positioning pin 113 is inserted into the inner side of the side through hole 112. One end of the positioning pin 113 is fixedly connected to one end of the actuating inner block 108, and the other end of the positioning pin 113 is inserted into the inner side of the side positioning hole 407. A horizontal slot 109 is opened on the side of the main support frame 1 near the bottom, and one end of the horizontal slot 109 is open. A pressing cylinder 111 is vertically fixedly connected to the top surface of the main support frame 1. Movable inner grooves 114 are evenly opened on the top surface of the adjusting turntable 102. The output end of the adjusting motor 110 extends vertically downward and is inserted into the inner side of the bottom locking hole 117, and the output end is fixedly connected to the center of the top of the top locking turntable 115. The pressing cylinder 111 is fixedly located near the adjusting motor 110. The extrusion cylinder 111 is located on the side and uses an electric cylinder structure. The output end of the extrusion cylinder 111 extends vertically downward and is inserted into the inner side of the storage groove 118. The bottom end of the extension is fixedly connected to the center of the top surface of the extrusion base plate 119. The movable inner grooves 114 are all vertically through-holes, and the top of the movable inner grooves 114 are connected to the bottom opening of the storage groove 118 to maintain communication. A top locking block 115 is fixedly connected to the center of the top surface of the adjusting turntable 102. A movable pressure head 116 is vertically inserted into the inner side of the movable inner groove 114. The bottom surface of the main support frame 1 has a bottom locking hole 117 and a storage groove 118. The output end of the extrusion cylinder 111 is fixedly connected to the extrusion base plate 119.The top of the top card rotating block 115 is snapped into the inner side of the bottom card hole 117. Multiple movable pressure heads 116 are present, each with dimensions corresponding to various sampling heads. A storage slot 118 is located near the side of the bottom card hole 117, and its bottom opening is connected to the top opening of the movable inner slot 114. The bottom surface of the extrusion base plate 119 is connected to the top of the movable pressure head 116. The outer side of the movable pressure head 116 is fixedly connected to... The side limiting block 120 has pressing claws 121 evenly arranged at the bottom end of the movable pressing head 116. A vertical inner groove 122 is vertically formed on the inner side of the movable inner groove 114. A top-connecting spring 123 is fixedly connected to the inner side of the vertical inner groove 122. One end of the side limiting block 120 is engaged with the inner side of the vertical inner groove 122. The pressing claws 121 form a wrapping pressing arrangement on the trumpet-shaped sampling head end by squeezing and closing. The top end of the top-connecting spring 123 is positioned at the bottom surface of the side limiting block 120. The movable pallet 4 has a horizontal through-slot 401 on its side. A snap-fit ​​side strip 402 is horizontally fixed to one side of the movable pallet 4. A mating through-hole 403 is provided on the top surface of the movable pallet 4. A rotating base 404 is horizontally snapped onto the inner side of the through-slot 401. The side of the movable pallet 4 is horizontally butted onto the side opening of the horizontal slot 109. The snap-fit ​​side strip 402 is horizontally snapped onto the inner side of the horizontal slot 109. The through-slot 401 is horizontally through-cut at the center line of the side of the movable pallet 4, and both sides of the through-slot 401 are open. The mating through-hole 403 is vertically through-cut near the edge of the top surface of the movable pallet 4, and the mating through-hole 403 and the discharge through-hole 405 are connected to each other. The rotating base 404 is rotatably mounted on the central support shaft 409. The inner side of the transverse groove 401 is penetrated, and the top surface of the rotating base 404 is evenly provided with discharge through holes 405. The inner top and bottom surfaces of the transverse groove 401 are symmetrically engaged with limiting top blocks 406. The side of the side strip 402 is provided with side positioning holes 407. The top surface of the rotating base 404 is evenly provided with stabilizing holes 408. A support shaft 409 is fixedly inserted at the center of the rotating base 404. The number and arrangement of the discharge through holes 405 are consistent with those of the movable inner groove 114. A trumpet-shaped sampling head is inserted through and set on the inner side of the discharge through hole 405. The side positioning hole 407 is set on the side of the side strip 402 near one end. The limiting top block 406 is correspondingly engaged on the inner side of the stabilizing hole 408. A mating bottom ring 410 is horizontally fixed on the inner bottom surface of the discharge through hole 405.

[0028] The support frame 1 is made of lightweight aluminum alloy, which ensures the structural strength of the equipment while reducing its weight. Meanwhile, the rational mechanical structure design and the application of an intelligent control system make the equipment more stable and reliable during operation, reducing the possibility of malfunctions.

[0029] Working principle: Open the movable tray 4 and place the trumpet-shaped sampling head to be pressed into the corresponding specification feeding through hole 405 on the rotating base 404. The feeding through hole 405 has a matching bottom ring 410 at the bottom to provide stable support for the sampling head. Ensure that the top opening of the sampling head is facing upward, and place the filter membrane, stainless steel mesh support, and sealing aluminum ring inside the sampling head in sequence. Close the movable tray 4 so that its side snap-fit ​​strip 402 snaps into the horizontal slot 109 on the side of the main support frame 1. Push the inner block 108 to fix the movable tray 4 in the designated position in the horizontal slot 109 through the positioning pin 113, ensuring that the sampling head is aligned with the movable pressing head 116. Set the pressing parameters, such as pressing force and pressing time, through the setting key 202 on the fixed side box 2. The display screen 201 will display the setting parameters and equipment status in real time. Pressing the start button (not explicitly labeled, but typically located on the fixed side box 2) activates the adjusting motor 110, which, via the top locking block 115, rotates the adjusting turntable 102, causing the corresponding movable pressure head 116 to rotate to the top position of the sampling head. The extrusion cylinder 111, activated by the electric cylinder, pushes the extrusion base plate 119 downwards, applying downward pressure to the movable pressure head 116. Under the action of the extrusion base plate 119, the movable pressure head 116 moves downwards, and its bottom pressing claw 121 gradually engages with the outer edge of the sealing aluminum ring. As extrusion continues, the pressing claw 121 closes and compresses the sealing aluminum ring, tightly wrapping it around the outer edge of the sampling head opening, thus fixing the filter membrane and stainless steel mesh inside the sampling head. During extrusion, the side limiting block 120 slides within the vertical inner groove 122, and the top spring 123 provides a buffering effect, ensuring a smooth extrusion process. Once the preset pressing time or pressing force is reached, the extrusion cylinder 111 stops working and retracts, causing the extrusion base plate 119 and the movable pressure head 116 to rise. Open the movable tray 4, remove the sample head that has been pressed, and check its sealing and filter membrane fixation effect. If it is necessary to press other sample heads, repeat the above steps.

[0030] All technical features in this embodiment can be freely combined according to actual needs.

[0031] The above embodiments are preferred implementations of the present invention. In addition, the present invention can be implemented in other ways. Any obvious substitutions without departing from the concept of the present technical solution are within the protection scope of the present invention.

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic film press for low-concentration particulate matter, comprising a main support frame (1), characterized in that, A fixed side box (2) is horizontally fixedly connected to one side of the main support frame (1). A handle side rod (3) is horizontally fixedly connected to the end of the fixed side box (2) away from the main support frame (1). A movable tray (4) is horizontally connected to the side of the main support frame (1) away from the fixed side box (2). The bottom surface of the main support frame (1) is horizontally provided with a mating top groove (101). The inner side of the mating top groove (101) is horizontally engaged with an adjusting turntable (102). A sealing base plate (103) is horizontally fixedly installed on the bottom surface of the adjusting turntable (102). A through hole (104) is uniformly provided on the bottom surface of the sealing base plate (103). An adjusting motor (110) is fixedly connected to the top surface of the main support frame (1). A compression cylinder (111) is vertically fixedly connected to the top surface of the main support frame (1). Movable inner grooves (114) are uniformly provided on the top surface of the adjusting turntable (102). A top clamping rotating block (11) is fixedly connected to the center of the top surface of the adjusting turntable (102). 5) A movable pressure head (116) is vertically inserted into the inner side of the movable inner groove (114). A bottom card hole (117) is opened on the bottom surface of the main support frame (1). A storage groove (118) is opened on the bottom surface of the main support frame (1). An extrusion base plate (119) is fixedly connected to the output end of the extrusion cylinder (111). A side limit block (120) is fixedly connected to the outer side of the movable pressure head (116). A pressing claw head (121) is evenly arranged at the bottom end of the movable pressure head (116). A vertical inner groove (122) is vertically opened in the inner side of the movable inner groove (114). A top spring (123) is fixedly connected to the inner side of the vertical inner groove (122). The movable pallet (4) has a horizontal through-slot (401) on its side. A snap-fit ​​side strip (402) is horizontally fixed to one side of the movable pallet (4). A mating through hole (403) is opened on the top surface of the movable pallet (4). A rotating base (404) is horizontally snapped to the inner side of the through-slot (401). A discharge through hole (405) is evenly opened on the top surface of the rotating base (404). A limit block (406) is symmetrically snapped to the inner top and bottom surfaces of the through-slot (401). A side positioning hole (407) is opened on the side of the snap-fit ​​side strip (402). A stabilizing hole (408) is evenly opened on the top surface of the rotating base (404). A support shaft (409) is fixedly inserted at the center of the rotating base (404). A mating bottom ring (410) is horizontally fixed to the inner bottom surface of the discharge through hole (405).

2. The automatic film press for low-concentration particulate matter according to claim 1, characterized in that, The sealing base plate (103) has mounting holes (105) evenly distributed near the edge of its bottom surface. A fixing screw (106) is inserted into the inner side of each mounting hole (105). The sealing base plate (103) is fixedly installed at the bottom of the adjusting turntable (102) via the fixing screw (106). A side locking groove (107) is horizontally opened on one side of the main support frame (1). A moving inner block (108) is engaged with the inner side of the side locking groove (107). There is a horizontal slot (109), and a side through hole (112) is provided on the inner side of the horizontal slot (109). A positioning pin (113) is inserted into the inner side of the side through hole (112). One end of the positioning pin (113) is fixedly connected to one end of the toggle block (108), and the other end of the positioning pin (113) is inserted into the inner side of the side positioning hole (407). The horizontal slot (109) is located on the side of the main support frame (1) near the bottom, and one end of the horizontal slot (109) is open.

3. The automatic film press for low-concentration particulate matter according to claim 1, characterized in that, The top surface of the fixed side box (2) is fixedly inlaid with a display screen (201), the top surface of the fixed side box (2) is evenly snapped with setting keys (202), the inner side of the fixed side box (2) is fixedly provided with a control motherboard (203), the inner side of the fixed side box (2) is fixedly provided with a setting motherboard (204), the display screen (201), the setting keys (202), the control motherboard (203) and the setting motherboard (204) are electrically connected to each other, the outer side of the handle side rod (3) is fixedly sleeved with an anti-slip rubber sleeve (301), and the end of the handle side rod (3) away from the fixed side box (2) is fixedly connected with a power cord (302).

4. An automatic film press for low-concentration particulate matter according to claim 1, characterized in that, The main support frame (1) is made of lightweight aluminum alloy. The main support frame (1) is L-shaped and is horizontally opened at the center of the bottom surface of the main support frame (1) in conjunction with the top groove (101). The top surface of the adjusting turntable (102) is connected to the bottom opening end of the bottom card hole (117). The sealing base plate (103) is fixedly connected to the bottom surface of the adjusting turntable (102) by the fixing screw (106). There are multiple through holes (104), and the multiple through holes (104) are arranged in a ring at equal intervals near the edge of the bottom surface of the sealing base plate (103). The through holes (104) and the movable inner groove (114) are all connected to each other.

5. An automatic film press for low-concentration particulate matter according to claim 1, characterized in that, The output end of the regulating motor (110) extends vertically downward and is inserted into the inner side of the bottom card hole (117). The output end is fixedly connected to the center of the top of the top card rotating block (115). The extrusion cylinder (111) is fixedly located on the side near the regulating motor (110). The extrusion cylinder (111) adopts an electric cylinder structure. The output end of the extrusion cylinder (111) extends vertically downward and is inserted into the inner side of the storage groove (118). The bottom end of the extension is fixedly connected to the center of the top surface of the extrusion base plate (119). The movable inner grooves (114) are all vertically through-hole. The top of the movable inner grooves (114) is correspondingly connected to the bottom opening of the storage groove (118) to maintain communication.

6. An automatic film press for low-concentration particulate matter according to claim 1, characterized in that, The top of the top card block (115) is snapped into the inner side of the bottom card hole (117). There are multiple movable pressure heads (116), and each movable pressure head (116) is set with a size corresponding to a sampling head of multiple specifications. The storage groove (118) is located on the side near the bottom card hole (117), and the bottom opening of the storage groove (118) is connected to the top opening of the movable inner groove (114) to maintain communication. The bottom surface of the extrusion base plate (119) is connected to the top of the movable pressure head (116).

7. An automatic film press for low-concentration particulate matter according to claim 1, characterized in that, One end of the side limiting block (120) is snapped into the inner side of the vertical inner groove (122), and the pressing claw head (121) forms a wrap-around pressing setting on the horn-shaped sampling head end by squeezing and closing. The top end of the top connecting spring (123) is connected to the bottom surface of the side limiting block (120).

8. An automatic film press for low-concentration particulate matter according to claim 1, characterized in that, The side of the movable pallet (4) is horizontally connected to the side opening of the horizontal slot (109). The snap-fit ​​side strip (402) is horizontally snap-fitted to the inner side of the horizontal slot (109). The through slot (401) is horizontally opened at the center line of the side of the movable pallet (4), and the two sides of the through slot (401) are open. The through hole (403) is vertically opened at the top surface of the movable pallet (4) near the edge. The through hole (403) and the discharge through hole (405) are connected to each other. The rotating base (404) is rotatably installed on the inner side of the through slot (401) through the central support shaft (409).

9. An automatic film press for low-concentration particulate matter according to claim 1, characterized in that, The number and arrangement of the discharge through holes (405) are consistent with those of the movable inner groove (114). The horn-shaped sampling head is inserted through and installed on the inner side of the discharge through hole (405). The side positioning hole (407) is opened on the side of the snap-fit ​​side strip (402) near one end. The limiting top block (406) is snap-fitted on the inner side of the stabilizing hole (408).

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