Adapter for probe of dust concentration monitor

Abstract

The utility model discloses an adapter for a probe of a dust concentration monitor, which relates to the technical field of dust concentration detection devices and solves the problem that air pipes with different inner diameters cannot be completely matched with the probe in connection. One end of the pipe is provided with a pipe head connected with a probe of a dust concentration monitor; one end of the quick connector is in threaded connection with one end, far away from the pipe head, of the connector, and the other end is provided with a plurality of clamping flaps capable of clamping the air pipe; and the screwing head is in threaded connection with the quick connector, and the inner side of the screwing head is provided with a conical surface. The connector in the adapter is connected with the air inlet and the air outlet in the probe, the quick connector is in threaded connection with the connector and the screwing head, the air pipe is inserted among the multiple clamping flaps on the quick connector, and the screwing head is rotated to extrude the multiple clamping flaps so as to clamp the air pipe. And the adaptability requirements of air pipes with different diameters and dust concentration detectors are met.

Description

Technical Field

[0001] The utility model relates to the technical field of dust concentration monitoring devices, in particular to an adapter for a probe rod of a dust concentration monitor. Background Art

[0002] A dust concentration monitor is an instrument used to monitor the amount of dust in an environment. Its operating principle is primarily laser sensing. The monitor consists of a hollow probe with a sensor inside. The probe's outer wall features an air inlet and an air outlet, connected to an inlet pipe and an outlet pipe, respectively. Dust-laden air enters the probe through the inlet pipe and exits through the outlet pipe. The optical sensor within the probe measures dust concentration by illuminating dust particles in the environment using optical phenomena such as scattering and absorption. When light passes through aerosol particles, they scatter and absorb light, with the intensity of the scattered light being proportional to the particle concentration. The monitor determines dust concentration by measuring the intensity of the scattered light.

[0003] The outlet pipe is usually connected to an atmospheric sampler, which draws outside air into the probe through a vacuum pump. The outside air then enters the probe through the inlet pipe and then through the outlet pipe into the atmospheric sampler. Because the diameter of the air inlet on different brands of atmospheric samplers may vary, the inner diameter of the air pipe connected to the inlet may also vary. This can affect the connection between the atmospheric sampler and the probe, resulting in different atmospheric samplers being incompatible with the probe, and the two not being able to fully seal the connection, affecting sample collection. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and to design an adapter for the probe of a dust concentration monitor, which solves the problem that the connection between air pipes with different inner diameters and the probe cannot be fully adapted.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is to provide an adapter for a dust concentration monitor probe, comprising two connecting assemblies for connecting an air inlet pipe and an air outlet pipe to the dust concentration monitor probe, respectively. The connecting assemblies include:

[0006] A connector, one end of which has a pipe head for connecting to a probe of a dust concentration monitor;

[0007] A quick connector, one end of which is threadedly connected to the end of the connector away from the pipe head, and the other end of which has a plurality of clamping flaps capable of clamping the trachea;

[0008] A screwing head is threadedly connected to the quick connector, and the inner side of the screwing head has a conical surface, which can control the inward contraction of multiple clamping petals.

[0009] Preferably, the outer side surface of the clamping flap has an inclined surface or a conical surface that matches the conical surface on the inner side of the screwing head.

[0010] Preferably, the quick connector is connected to a connecting pipe, one end of the connecting pipe is inserted between a plurality of clamping flaps and is clamped by the plurality of clamping flaps, and the other end of the connecting pipe has a plug-in portion for plugging into the air inlet pipe and the air outlet pipe.

[0011] Preferably, the end of the connecting tube away from the plug-in portion is hard, and a rubber sleeve is provided in the middle of the plurality of clamping petals, and the connecting tube is plugged into the rubber sleeve.

[0012] Preferably, the inner side of the end of the connector away from the pipe head has an internal thread, the inner side of the screwing head has an internal thread, and the outer sides of both ends of the quick connector have external threads matching the internal threads.

[0013] Preferably, the screwing head and the quick connector are provided with a screwing portion for facilitating the rotation of the screwing head and the quick connector, and the outer contour of the screwing portion is a polygon.

[0014] Preferably, the outer side of the tube head has an anti-slip structure, and the outer side of the anti-slip structure is wrapped with a sealing tape.

[0015] Preferably, the tube head can be plugged into the dust concentration monitor probe, the connector is provided with a clamp, the two clamps on the connector can be clamped to each other, and a through hole is formed between the two clamps for the dust concentration monitor probe to pass through.

[0016] Preferably, a sealing ring is provided on the periphery of the tube head.

[0017] Compared with the prior art, the beneficial effects are:

[0018] In the utility model, the connector will be connected to the air inlet and outlet holes on the probe, the quick connector will be threadedly connected to the connector, the air pipe will be inserted between the multiple clamping petals on the quick connector, and then the screwing head will be rotated, the screwing head will be threadedly connected to the quick connector, and at the same time, the conical surface on the inner side of the screwing head will cooperate with the clamping petals to squeeze the clamping petals, thereby clamping the air pipe, which can meet the connection requirements of air pipes of different diameters, thus meeting the adaptability requirements of the atmospheric sampler and the dust concentration detector. At the same time, users can choose other accessories by themselves, such as connecting the inlet to the particulate matter pre-separator and the outlet to the three-piece 37mm sampling box, without being restricted by the previous adapter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the adapter of the present invention when it is installed on the probe;

[0020] Figure 2is a schematic structural diagram of the connection assembly in Example 1;

[0021] Figure 3 is a schematic diagram of the exploded structure of the connection assembly in Example 1;

[0022] Figure 4 is a schematic structural diagram of the connector in Example 1;

[0023] Figure 5 is a schematic structural diagram of the connector in Example 1 from another perspective;

[0024] Figure 6 This is a schematic diagram of the structure of the quick connector in Example 1

[0025] Figure 7 This is a schematic diagram of the structure of the screwing head in Example 1

[0026] Figure 8 This is a schematic diagram of the structure of the connecting pipe in Example 1

[0027] Figure 9 Schematic diagram of the structure of the connector in Example 2.

[0028] In the figure, 1. Connecting assembly; 11. Connecting head; 111. Pipe head; 112. Clamp; 113. Anti-slip structure; 1121. Buckle; 1122. Slot; 12. Quick connector; 121. Clamp; 122. Rubber sleeve; 13. Screw head; 131. Conical surface; 14. Connecting pipe; 141. Plug-in part; 101. Internal thread; 102. External thread; 103. Screw part; 2. Probe; 3. Sealing ring. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] Example 1

[0031] like Figure 1 As shown, a preferred embodiment of the present invention proposes an adapter for a dust concentration monitor probe, which can connect air pipes of different inner diameters to the probe 2 in the dust concentration monitor. The adapter mainly includes two connecting components 1, and the two connecting components 1 are respectively used to connect to the air inlet pipe and the air outlet pipe. The air outlet pipe will be connected to the air inlet on the atmospheric sampler, and the air inlet pipe will be connected to, for example, the inlet of the particulate matter pre-separator.

[0032] like Figure 2-Figure 7As shown, the connection assembly 1 mainly consists of a connector 11, a quick connector 12, a screw head 13, and a connecting pipe 14. External threads 102 are provided at both ends of the quick connector 12, and internal threads 101 are provided on the inner sides of the screw head 13 and the connector 11. The external threads 102 mate with the internal threads 101. The screw head 13 and the connector 11 are respectively threadedly connected to the ends of the quick connector 12.

[0033] refer to Figure 6 、 Figure 7 The end of the quick connector 12 that is threadedly connected to the screw head 13 has multiple clips 121. The multiple clips 121 are evenly distributed along the circumference. The clips 121 have a certain degree of toughness and can shrink toward the center of the quick connector 12. The outer side of the clips 121 is an inclined surface or a conical surface. At the same time, the inner side of the screw head 13 also has a conical surface 131. This conical surface 131 can match the inclined surface or conical surface on the clips 121. When the connecting tube 14 passes through the screw head 13 and is inserted between the multiple clips 121, the screw head 13 is rotated to thread the screw head 13 and the quick connector 12. At the same time, under the pressure of the inner conical surface 131 of the screw head 13, the multiple clips 121 on the quick connector 12 can shrink downward to clamp the connecting tube 14.

[0034] refer to Figure 8 The connecting tube 14 has one thicker end and one thinner end. The thinner end has a plug-in portion 141 whose diameter matches the inner diameter of the outlet pipe. The outlet pipe connected to the atmospheric sampler will be plugged into the plug-in portion 141. The thicker end of the connecting tube 14 is made of a hard material to prevent deformation of the connecting tube 14 when the clamping flap 121 clamps it.

[0035] like Figure 6 As shown, a rubber sleeve 122 is disposed between the plurality of clamping petals 121. The rubber sleeve 122 has a through hole in the center. The thicker end of the connecting tube 14 passes through the through hole in the center of the rubber sleeve 122. The screwing head 13 is then rotated to squeeze the plurality of clamping petals 121, thereby clamping the connecting tube 14. The rubber sleeve 122 provides a seal and also prevents damage to the connecting tube 14.

[0036] The connecting tube 14 is replaceable. Depending on the inner diameter of the air outlet pipe, it can be replaced with a connecting tube 14 with a matching plug-in portion 141 , thereby ensuring that the probe 2 can be compatible with atmospheric samplers of different brands.

[0037] If both the inlet and outlet pipes are made of soft materials, they need to be connected with the connecting tube 14. If the inlet and outlet pipes are directly inserted into the quick connector 12, the clamping flaps 121 will damage them and the seal cannot be guaranteed. If both the inlet and outlet pipes are made of hard materials, the connecting tube 14 is not required. The inlet and outlet pipes can be directly inserted into the quick connector 12 and clamped by the multiple clamping flaps 121.

[0038] refer to Figure 5 In this embodiment, a tube head 111 is provided at the end of the connector 11 away from the quick connector 12. The diameter of the tube head 111 matches the diameters of the air inlet and air outlet holes on the probe 2. The tube head 111 on the connector 11 will be plugged into the air inlet and air outlet holes respectively. To ensure a tight seal during plugging, a sealing ring 3 is installed around the outer periphery of the tube head 111.

[0039] The two connectors 11 are symmetrically plugged into the probe 2, and the two connectors 11 are clamped to the probe 2 by the clamping hoop 112. The clamping hoop 112 and the connector 11 are integrally formed. The inner side surface of the clamping hoop 112 is a curved surface, which can fit tightly against the surface of the probe 2. Matching buckles 1121 and slots 1122 are provided at both ends of the clamping hoop 112. After the two connectors 11 are plugged into the probe 2, the buckles 1121 and slots 1122 at both ends of the clamping hoop 112 on the two connectors 11 are clamped end to end in sequence, so that the connector 11 is firmly fixed to the probe 2.

[0040] refer to Figure 6 、 Figure 7 In order to facilitate the rotation of the quick connector 12 and the screw head 13, the outer sides of the quick connector 12 and the screw head 13 have a screwing portion 103, and the outer contour of the screwing portion 103 is deformable, so that the screw head 13 and the quick connector 12 can be rotated manually, thereby quickly assembling the quick connector 12, the connecting head 11, the screw head 13 and the connecting pipe 14 together.

[0041] The air inlets on atmospheric samplers of different brands have different sizes. Therefore, the probe 2 can be connected to the atmospheric sampler by simply selecting a connecting tube 14 that matches the inlet, which provides higher adaptability.

[0042] Example 2

[0043] like Figure 9 As shown, in Example 1, the two connectors 11 are plugged into the probe 2 and then clamped and fixed by a clamp 112. The difference between this embodiment and Example 1 is that in this embodiment, an anti-slip structure 113 is provided on the outer side of the tube head 111. The anti-slip structure 113 can be a plurality of protrusions, a friction surface, or other structures for enhancing friction.

[0044] To enhance the seal, a layer of sealing tape can be wrapped around the outside of the anti-slip structure 113, so that the pipe head 111 and the air inlet and outlet holes on the probe 2 form an interference fit. At the same time, the anti-slip structure 113 can enhance the friction between the sealing tape and the connector 11, making it difficult to pull out of the probe 2. This eliminates the need for the clamp 112 for fixation, simplifies the structure of the connector 11, and makes processing more convenient.

[0045] The above technical solutions only reflect the preferred technical solutions of the present utility model. Any changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present utility model and fall within the scope of protection of the present utility model.

Claims

1. An adapter for a dust concentration monitor probe, comprising two connecting assemblies (1) for connecting an air inlet pipe and an air outlet pipe to a dust concentration monitor probe (2), characterized in that: The connecting assembly (1) comprises: A connector (11), one end of which has a pipe head (111) for connecting to a dust concentration monitor probe (2); A quick connector (12), one end of which is threadedly connected to an end of the connector (11) away from the pipe head (111), and the other end of which has a plurality of clamping flaps (121) capable of clamping the trachea; A screwing head (13) is threadedly connected to the quick connector (12); the inner side of the screwing head (13) has a conical surface (131) capable of controlling the inward contraction of the plurality of clamping petals (121).

2. The adapter for a dust concentration monitor probe according to claim 1, characterized in that: The outer side surface of the clamping flap (121) has an inclined surface or a conical surface that matches the conical surface (131) on the inner side of the screwing head (13).

3. The adapter for a dust concentration monitor probe according to claim 1, characterized in that: The quick connector (12) is connected to a connecting pipe (14), one end of the connecting pipe (14) is inserted between a plurality of clamping flaps (121) and the connecting pipe (14) is clamped by the plurality of clamping flaps (121), and the other end of the connecting pipe (14) has a plug-in portion (141) for plugging into an air inlet pipe and an air outlet pipe.

4. The adapter for the dust concentration monitor probe according to claim 3, characterized in that: One end of the connecting tube (14) away from the plug-in portion (141) is hard, and a rubber sleeve (122) is provided in the middle of the plurality of clamping flaps (121), and the connecting tube (14) is plugged into the rubber sleeve (122).

5. The adapter for the dust concentration monitor probe according to claim 1, characterized in that: The inner side of the end of the connector (11) away from the pipe head (111) has an internal thread (101), the inner side of the screwing head (13) has an internal thread (101), and the outer sides of both ends of the quick connector (12) have external threads (102) that match the internal thread (101).

6. The adapter for the dust concentration monitor probe according to claim 1, characterized in that: The screwing head (13) and the quick connector (12) are provided with a screwing portion (103) for facilitating the rotation of the screwing head (13) and the quick connector (12), and the outer contour of the screwing portion (103) is a polygon.

7. An adapter for a dust concentration monitor probe according to any one of claims 1 to 6, characterized in that: The outer side of the pipe head (111) has an anti-slip structure (113), and the outer side of the anti-slip structure (113) is wrapped with a sealing tape.

8. An adapter for a dust concentration monitor probe according to any one of claims 1 to 6, characterized in that: The pipe head (111) can be plugged into the dust concentration monitor probe (2); the connector (11) is provided with a clamp (112); the clamps (112) on the two connectors (11) can be mutually engaged, and a through hole is formed between the two clamps (112) for the dust concentration monitor probe (2) to pass through.

9. The adapter for the probe of a dust concentration monitor according to claim 8, characterized in that: A sealing ring (3) is provided on the periphery of the pipe head (111).

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