Membrane replacing equipment of dust sampler

Abstract

The utility model relates to the technical field of dust sampling devices, and discloses membrane replacing equipment of a dust sampler, which comprises a sampler body and a connecting pipe arranged on the side surface of the sampler body, and a driving motor on the same side as the connecting pipe is fixedly mounted on one side of the sampler body. A polygonal inserting shaft is fixedly mounted at the output end of the driving motor, a mounting groove for mounting the driving motor is formed in one side of the sampler body, a sleeving ring matched with the polygonal inserting shaft is arranged on the side face of the polygonal inserting shaft in a sleeving mode, and a quick disassembling and assembling unit is arranged between the sleeving ring and the polygonal inserting shaft; connecting rods are fixedly connected to the multiple side faces of the sleeving ring, and abutting rings matched with the connecting pipes are fixedly installed at the ends, away from the sleeving ring, of the connecting rods. According to the dust sampler disclosed by the utility model, the sleeving rings are arranged on the side surfaces of the polygonal inserting shafts in a sleeving manner, and are matched with the quick dismounting units, so that a plurality of filter membrane bodies can be quickly and integrally replaced, the filter membrane bodies of the dust sampler are convenient to replace, and the efficiency of the dust sampler is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust sampling device technical field, concretely is a kind of membrane replacement equipment of dust sampler. BACKGROUND

[0002] High dust concentration in the air of production site can cause great harm to staff and safety in production, on the one hand, it will adversely affect the health of personnel, on the other hand, too high dust concentration can also cause explosion, so we need to monitor the dust concentration in the air of production site in real time, using dust sampling device to monitor dust concentration is a simple and effective method.

[0003] In order to facilitate the replacement of filter membrane in dust sampler, the prior art has made many improvements on dust sampler, such as the patent with the patent announcement number CN220960799U, which discloses a remote-controlled dust sampler, comprising a sampler main body, a protective device is fixed on the right side surface of the sampler main body, a first through hole is formed on the right side surface of the protective device, a sampling head is fixed on the right side surface of the sampler main body, a second through hole is formed on the inner left side surface of the protective device, the left side of the sampling head is arranged in the second through hole, three filter membrane clamps are arranged on the right side of the sampling head, an automatic conversion mechanism is fixed on the inner left side surface of the protective device, and a controller is fixed on the front of the inner left side surface of the protective device. When using the device in places where the dust concentration is high and the sampling personnel cannot stay, such as mine crushing sites and feeding crushing sites, the controller can be controlled by the mobile phone to control the sampler, and the start of the sampler main body and the rotation of the automatic conversion mechanism can ensure the personal safety of the sampling personnel.

[0004] The above-mentioned patent has obvious beneficial effects, but there are still the following deficiencies in practical operation:

[0005] In the above-mentioned comparative file, when the filter membrane needs to be replaced, the support seat is rotated by the motor, and a plurality of filter membranes are installed on the support seat to realize the effect of replacing the filter membrane. However, in reality, when the plurality of filter membranes on the support seat are all used up, the protective cover on one side of the dust sampler needs to be opened, and then the plurality of filter membranes need to be replaced. Although the membrane replacement time is reduced during sampling, when the plurality of filter membranes need to be replaced at the same time, it still takes a long time, and the dust sampler needs to be closed for a long time during the replacement process, thereby reducing the dust collection efficiency. Therefore, the dust sampler membrane replacement equipment needs to be improved in the field, so as to solve the defects of the prior art. UTILITY MODEL CONTENTS

[0006] To address the shortcomings of existing technologies, this utility model provides a membrane replacement device for a dust sampler, which facilitates the replacement of the filter membrane body during dust sampling and improves the efficiency of the dust sampler.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a membrane replacement device for a dust sampler, comprising a sampler body and a connecting pipe disposed on the side of the sampler body. A drive motor is fixedly installed on one side of the sampler body, on the same side as the connecting pipe. A polygonal plug-in shaft is fixedly installed at the output end of the drive motor. A mounting groove for installing the drive motor is provided on one side of the sampler body. A matching sleeve ring is fitted on the side of the polygonal plug-in shaft. A quick disassembly unit is provided between the sleeve ring and the polygonal plug-in shaft. Connecting rods are fixedly connected to multiple sides of the sleeve ring. An abutment ring adapted to the connecting pipe is fixedly installed at one end of the connecting rod and the sleeve ring. A filter membrane body is fixedly installed inside the abutment ring. A detachable protective cover is provided on the side of the sampler body. The protective cover is used to protect several unused filter membrane bodies.

[0008] Preferably, a locking ring is threadedly connected to one side of the abutment ring, and the filter membrane body is pressed between the abutment ring and the locking ring. Several resistance protrusions are provided on the side of the locking ring.

[0009] Preferably, the quick-release unit includes a limiting rod that passes through the sleeve ring, a limiting hole adapted to the end of the limiting rod is opened on the side of the polygonal plug shaft, a connecting plate is fixedly connected to the end of the limiting rod away from the sleeve ring, and a spring sleeved on the side of the limiting rod is fixedly installed between the connecting plate and the polygonal plug shaft.

[0010] Preferably, the cavity inside the protective cover is adapted to the abutment ring and the locking ring, and several plug rods are fixedly connected to the side of the protective cover near the sampler body. Several plug slots adapted to the plug rods are opened on the side of the sampler body.

[0011] Preferably, a connector is inserted into the upper part of the sampler body, and a connector hole adapted to the connector is opened on the upper part of the sampler body. A connecting bracket adapted to the position of the connecting pipe is fixedly installed on the upper part of the connector. A clamping ring is fixedly installed at the end of the connecting bracket away from the connector. The clamping ring presses the clamping ring against the connecting pipe. A guide angle is provided on the side of the clamping ring near the connecting pipe.

[0012] Preferably, two elastic plates with elasticity are fixedly installed on the upper part of the sampler body, located on the side of the plug hole, and the side of the elastic plate is provided with an arc-shaped protrusion that is adapted to the connecting frame.

[0013] Preferably, the connecting tube has arc-shaped grooves on the side away from the sampler body and on the side of the contact ring, and an elastic sealing ring is embedded in the arc-shaped groove on one side of the connecting tube.

[0014] To address the shortcomings of existing technologies, this utility model provides a membrane replacement device for a dust sampler, overcoming the deficiencies of the prior art. The beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, by sleeved on the side of the polygonal plug shaft and in conjunction with the quick disassembly unit, several filter membrane bodies can be quickly replaced as a whole, which is convenient for replacing filter membrane bodies when sampling dust and improves the efficiency of the dust sampler.

[0016] 2. In this utility model, the filter membrane body is located between the abutment ring and the locking ring by a threaded connection of the locking ring. The filter membrane body is convenient to be installed during the idle time.

[0017] 3. In this utility model, by setting an elastic sealing ring on one side of the connecting pipe, and cooperating with the locking ring to press the locking ring in the direction of the connecting pipe, the sealing effect after the connecting pipe and the locking ring are tightly attached is improved.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure where the protective cover is separated in this utility model;

[0022] Figure 3 This is a schematic diagram of the connecting frame in this utility model;

[0023] Figure 4 This is a schematic diagram of the clamping ring in this utility model;

[0024] Figure 5 This is a partial cross-sectional structural diagram of the connecting pipe and other components in this utility model;

[0025] Figure 6 for Figure 3 Enlarged structural diagram at point A in the middle.

[0026] In the diagram: 1. Sampler body; 2. Connecting pipe; 3. Drive motor; 4. Polygonal plug-in shaft; 5. Mounting groove; 6. Sleeve ring; 7. Connecting rod; 8. Abutment ring; 9. Locking ring; 10. Filter membrane body; 11. Protective cover; 12. Limiting rod; 13. Connecting plate; 14. Spring; 15. Limiting hole; 16. Plug-in rod; 17. Plug-in groove; 18. Plug-in seat; 19. Plug-in hole; 20. Connecting frame; 21. Abutment ring; 22. Elastic plate; 23. Arc-shaped protrusion; 24. Arc-shaped groove; 25. Sealing ring; 26. Guide angle; 27. Resistance protrusion. Detailed Implementation

[0027] 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. Example

[0028] Please see Figures 1-6 A membrane replacement device for a dust sampler includes a sampler body 1 and a connecting pipe 2 disposed on the side of the sampler body 1. A drive motor 3 is fixedly installed on one side of the sampler body 1, on the same side as the connecting pipe 2. A polygonal plug-in shaft 4 is fixedly installed at the output end of the drive motor 3. A mounting groove 5 for installing the drive motor 3 is provided on one side of the sampler body 1. A fitting sleeve ring 6 is sleeved on the side of the polygonal plug-in shaft 4. A quick-release unit is provided between the sleeve ring 6 and the polygonal plug-in shaft 4. Connecting rods 7 are fixedly connected to multiple sides of the sleeve ring 6. An abutment ring 8 that fits the connecting pipe 2 is fixedly installed at one end of the connecting rod 7 and the sleeve ring 6. A filter membrane body 10 is fixedly installed inside the abutment ring 8. A detachable protective cover 11 is provided on the side of the sampler body 1 for protection. Several unused filter membrane bodies 10 are connected to a locking ring 9 threadedly on one side of an abutment ring 8. The filter membrane bodies 10 are pressed between the abutment ring 8 and the locking ring 9. Several resistance protrusions 27 are provided on the side of the locking ring 9. The quick disassembly unit includes a limiting rod 12 that passes through a sleeve ring 6. A limiting hole 15 adapted to the end of the limiting rod 12 is opened on the side of the polygonal plug shaft 4. A connecting plate 13 is fixedly connected to the end of the limiting rod 12 away from the sleeve ring 6. A spring 14 sleeved on the side of the limiting rod 12 is fixedly installed between the connecting plate 13 and the polygonal plug shaft 4. The cavity inside the protective cover 11 is adapted to the abutment ring 8 and the locking ring 9. Several plug rods 16 are fixedly connected to the side of the protective cover 11 near the sampler body 1. Several plug grooves 17 adapted to the plug rods 16 are opened on the side of the sampler body 1.

[0029] The specific implementation method in this embodiment is as follows: The sampler body 1 is a known existing technology. When dust sampling and monitoring are required in a designated location, the sampler body 1 is installed in the designated location. It draws in dust-laden air through a built-in air pump (such as a bidirectional air pump), causing the dust in the air to be trapped on a filter membrane body 10 of known mass. The weight difference of the filter membrane body 10 before and after sampling is the mass of dust collected. When the dust adsorbed on one filter membrane body 10 reaches a threshold, the drive motor 3 is started through the control device. The output end drives the polygonal plug shaft 4 to rotate, which in turn drives the sleeve ring 6 to rotate. The sleeve ring 6, through the connecting rod 7, drives several abutment rings 8 to rotate, rotating the abutment rings 8 located inside the protective cover 11 to a position that matches the connecting tube 2. Dust sampling continues. When several filter membrane bodies 10 need to be replaced, the connecting plate 13 is pulled away from the sleeve ring 6. The connecting plate 13 drives the limiting rod 12, and the end of the limiting rod 12 disengages from the limiting hole 15. At this time, the spring 14 is stretched, directly pulling the sleeve ring 6 from the polygonal plug shaft 11. The polygonal plug shaft 4 is pulled out from the side, and the plug rod 16 disengages from the plug groove 17, separating the protective cover 11 from the several abutment rings 8. The protective cover 11 is then fitted onto the sides of the abutment rings 8 of the pre-installed filter membrane bodies 10. The connecting plate 13 is pulled away from the sleeve ring 6 again, fitting the sleeve ring 6 onto the side of the polygonal plug shaft 4. After the sleeve ring 6 is fully fitted onto the side of the polygonal plug shaft 4, the connecting plate 13 is released, and the spring 14 returns to its original position, causing one end of the limiting rod 12 to insert into the limiting hole 15. This completes the fitting of several filter membrane bodies 10. The membrane body 10 can be replaced quickly, improving the efficiency of the dust sampler. The abutment ring 8 and locking ring 9 on both sides of the protective cover 11 are tightly against the opposite side wall inside the protective cover 11 to prevent dust from sticking to the unsampled filter membrane body 10. During idle time, the locking ring 9 connected to the abutment ring 8 can be unscrewed. The resistance protrusion 27 makes it easy for the sampling personnel to turn the locking ring 9. The new filter membrane body 10 is placed between the abutment ring 8 and the locking ring 9, and the locking ring 9 is tightened to fix the filter membrane body 10. Example

[0030] Please see Figure 2 , Figure 4 and Figure 5This embodiment includes the above embodiment, and further includes: a connector 18 is inserted into the upper part of the sampler body 1, and a connector hole 19 adapted to the connector 18 is opened on the upper part of the sampler body 1. A connecting frame 20 adapted to the position of the connecting tube 2 is fixedly installed on the upper part of the connector 18. A clamping ring 21 is fixedly installed on the end of the connecting frame 20 away from the connector 18. The clamping ring 21 presses the clamping ring 8 against the connecting tube 2. A guide angle 26 is provided on the side of the clamping ring 21 near the connecting tube 2. Two elastic plates 22 located on the side of the connector hole 19 and having elasticity are fixedly installed on the upper part of the sampler body 1. An arc-shaped protrusion 23 adapted to the connecting frame 20 is provided on the side of the elastic plate 22. An arc-shaped groove 24 is opened on the side of the connecting tube 2 away from the sampler body 1 and on the side of the clamping ring 8. An elastic sealing ring 25 is embedded in the arc-shaped groove 24 on the side of the connecting tube 2.

[0031] In this embodiment, when the sleeve ring 6 rotates, one side of the locking ring 9 is guided by the guide angle 26 to deflect towards the connecting pipe 2. This, combined with the elastic sealing ring 25 embedded in the arc groove 24, improves the sealing effect after the abutment ring 8 and the connecting pipe 2 are tightly pressed together. When replacing the sleeve ring 6, pull the connecting frame 20 upwards. The insertion seat 18 will disengage from the insertion hole 19, and the locking ring 21 can be removed. After replacing several filter membrane bodies 10, insert the insertion seat 18 into the insertion hole 19. The elastic plate 22, in conjunction with the arc protrusion 23, engages the connecting frame 20.

[0032] The aforementioned drive motor 3 can be purchased from the market. It is a mature technology that has been fully disclosed, so it will not be repeated in the specification. The drive motor 3 is equipped with a power connection line, and it is electrically connected to the external main controller and 220V phase voltage (or chemical power source) through the power connection line. The main controller can be a conventional known device such as a computer that plays a control role.

[0033] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 according to the specific circumstances.

[0035] The above description is merely 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 membrane replacement device for a dust sampler, comprising a sampler body (1) and a connecting pipe (2) disposed on the side of the sampler body (1), characterized in that, A drive motor (3) is fixedly installed on one side of the sampler body (1) on the same side as the connecting tube (2). A polygonal plug shaft (4) is fixedly installed at the output end of the drive motor (3). A mounting groove (5) for installing the drive motor (3) is opened on one side of the sampler body (1). A matching sleeve ring (6) is fitted on the side of the polygonal plug shaft (4). A quick disassembly unit is provided between the sleeve ring (6) and the polygonal plug shaft (4). A connecting rod (7) is fixedly connected to multiple sides of the sleeve ring (6). A mating ring (8) that matches the connecting tube (2) is fixedly installed on one end of the connecting rod (7) and the mating ring (8). A filter membrane body (10) is fixedly installed inside the mating ring (8). A detachable protective cover (11) is provided on the side of the sampler body (1). The protective cover (11) is used to protect several unused filter membrane bodies (10).

2. The membrane replacement device for a dust sampler according to claim 1, characterized in that, A locking ring (9) is threadedly connected to one side of the abutment ring (8). The filter membrane body (10) is pressed between the abutment ring (8) and the locking ring (9). Several resistance protrusions (27) are provided on the side of the locking ring (9).

3. The membrane replacement device for a dust sampler according to claim 1, characterized in that, The quick-release unit includes a limiting rod (12) that passes through the sleeve ring (6), and a limiting hole (15) that matches the end of the limiting rod (12) is opened on the side of the polygonal plug shaft (4). A connecting plate (13) is fixedly connected to the end of the limiting rod (12) away from the sleeve ring (6). A spring (14) sleeved on the side of the limiting rod (12) is fixedly installed between the connecting plate (13) and the polygonal plug shaft (4).

4. The membrane replacement device for a dust sampler according to claim 1, characterized in that, The cavity inside the protective cover (11) is adapted to the abutment ring (8) and the locking ring (9). Several plug rods (16) are fixedly connected to the side of the protective cover (11) near the sampler body (1). Several plug slots (17) adapted to the plug rods (16) are opened on the side of the sampler body (1).

5. The membrane replacement device for a dust sampler according to claim 1, characterized in that, A connector (18) is inserted into the upper part of the sampler body (1). A connector hole (19) adapted to the connector (18) is opened on the upper part of the sampler body (1). A connecting frame (20) adapted to the position of the connecting tube (2) is fixedly installed on the upper part of the connector (18). A clamping ring (21) is fixedly installed at the end of the connecting frame (20) away from the connector (18). The clamping ring (21) pushes the clamping ring (8) against the connecting tube (2). A guide angle (26) is provided on the side of the clamping ring (21) close to the connecting tube (2).

6. The membrane replacement device for a dust sampler according to claim 5, characterized in that, Two elastic plates (22) are fixedly installed on the upper part of the sampler body (1) on the side of the plug hole (19) and are elastic. The side of the elastic plate (22) is provided with an arc-shaped protrusion (23) that is compatible with the connecting frame (20).

7. The membrane replacement device for a dust sampler according to claim 1, characterized in that, The connecting tube (2) has an arc groove (24) on the side away from the sampler body (1) and on the side of the abutment ring (8). An elastic sealing ring (25) is embedded in the arc groove (24) on one side of the connecting tube (2).

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