Ultralow particulate matter sampling head pressing device

Abstract

The utility model discloses an ultralow particulate matter sampling head pressing device, which relates to the technical field of sampling head pressing devices and comprises a pressing ring, a sampling tube head and a sampling head. According to the utility model, the wrench, the pin shaft, the torsion spring, the pressing ring and the high-elasticity heat-resistant rubber pad are arranged, and the wrench is rotationally connected with the smoke gun groove through the pin shaft and is elastically connected with the smoke gun groove through the torsion spring, so that the wrench can be pushed towards two ends to deflect by taking the pin shaft as an axis, and the wrench relieves the extrusion on the pressing ring; at the moment, the sampling head is aligned with the sampling tube head, the wrench is pressed towards the sampling tube head to extrude the pressing ring, and meanwhile, the pressing ring extrudes the sampling head through the high-elasticity heat-resistant rubber pad, so that rapid butt joint assembly between the sampling head and the sampling tube head is realized, the structure is simple, the operation is convenient, and one person can rapidly complete the assembly; meanwhile, after pressing, the wrenches are arranged on the two sides of the smoke gun groove and cannot be disengaged due to mistaken touch, and safety and reliability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling head pressing devices, in particular to an ultra-low particle sampling head pressing device. Background Art

[0002] The ultra-low particulate sampling head clamping device is a device used to fix and clamp the ultra-low particulate sampling head. It usually includes a clamping mechanism and a fixing seat. The clamping mechanism fixes the sampling head on the fixing seat by applying pressure to ensure that the sampling head does not fall off or move during the sampling process. It is usually used in environmental monitoring, industrial emission control and other fields to ensure accurate and reliable collection of ultra-low particulate samples.

[0003] At present, when sampling ultra-low particulate matter, the direction of the ultra-low sampling nozzle is required to be aligned with the direction of the exhaust gas to be tested. If it is skewed at a certain angle, inaccurate measurement will occur. When installing the ultra-low sampling head, a pressure ring must be used to rotate and tighten it. During the tightening process, the ultra-low sampling head will be rotated by the pressure ring due to friction, causing the sampling head to be skewed. Fixing the sampling gun, rotating the pressure ring, and fixing the ultra-low sampling head need to be done simultaneously, so two people are required to operate it, which is a waste of manpower. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide an ultra-low particle sampling head pressing device to solve the technical problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ultra-low particle sampling head clamping device, comprising a pressing ring, a sampling tube head and a sampling head, the pressing ring is sleeved on the outside of the sampling head, a high-elasticity and heat-resistant rubber pad is arranged between the pressing ring and the sampling head, and a sampling tube head is arranged on one side of the sampling head.

[0006] Preferably, a smoke gun groove is provided on the outer surface of the sampling tube head, a pin is rotatably connected inside the smoke gun groove, and a wrench is welded between two pins.

[0007] Preferably, a torsion spring is welded between the wrench and the cigarette gun slot, and the wrench and the cigarette gun slot form an elastic structure through the torsion spring. The torsion spring and the pin are symmetrically arranged in two groups about the central axis of the wrench.

[0008] Preferably, two wrenches are symmetrically arranged about the central axis of the sampling tube head.

[0009] Preferably, an aluminum foil sealing ring is provided on one side of the interior of the sampling tube head, and a support net is provided on one side of the aluminum foil sealing ring inside the sampling tube head, and the support net is made of stainless steel.

[0010] Preferably, a filter membrane is provided inside the sampling tube head on one side of the support net, and the specification of the filter membrane is 47 mm.

[0011] Preferably, an end cap is provided on the outer surface of one end of the sampling head, and the end cap is made of PVC material.

[0012] In summary, the utility model mainly has the following beneficial effects:

[0013] The existing ultra-low particle sampling head clamping device is easy to cause the sampling head to be skewed when assembling the sampling head and the sampling tube head, and requires two people to operate synchronously, which is a waste of manpower. The utility model is provided with a wrench, a pin, a torsion spring, a pressure ring and a high-elasticity heat-resistant rubber pad. Since the wrench is rotatably connected to the cigarette gun groove by the pin and elastically connected by the torsion spring, the wrench can be pushed to both ends to make it deflected with the pin as the axis, and the wrench releases the squeezing of the pressure ring. At this time, the sampling head is aligned with the sampling tube head, and the wrench is pressed in the direction of the sampling tube head, so that the wrench squeezes the pressure ring, and the pressure ring squeezes the sampling head through the high-elasticity heat-resistant rubber pad, thereby realizing the rapid docking assembly between the sampling head and the sampling tube head. The structure is simple and the operation is convenient. It can be completed quickly by one person, and there will be no phenomenon of skewed direction of the sampling head. At the same time, after clamping, the wrench is on both sides of the cigarette gun groove and will not fall out due to accidental touch, which is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0015] Figure 2 It is a partial side cutaway view of the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the utility model.

[0017] In the figure: 1. Pressing ring; 2. Sampling tube head; 3. Smoke gun slot; 4. Wrench; 5. Sampling head; 6. High elasticity and heat-resistant rubber pad; 7. Pin shaft; 8. Torsion spring; 9. Aluminum foil sealing ring; 10. Filter membrane; 11. Support net. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0019] The following describes an embodiment of the utility model based on its overall structure.

[0020] An ultra-low particle sampling head clamping device, such as Figure 1 and Figure 2 As shown, it includes a pressing ring 1, a sampling tube head 2 and a sampling head 5, the pressing ring 1 is sleeved on the outside of the sampling head 5, a high-elasticity heat-resistant rubber pad 6 is arranged between the pressing ring 1 and the sampling head 5, a sampling tube head 2 is arranged on one side of the sampling head 5, a cigarette gun groove 3 is arranged on the outer surface of the sampling tube head 2, a pin shaft 7 is rotatably connected inside the cigarette gun groove 3, a wrench 4 is welded and connected between the two pin shafts 7, a torsion spring 8 is welded and connected between the wrench 4 and the cigarette gun groove 3, the wrench 4 and the cigarette gun groove 3 form an elastic structure through the torsion spring 8, and two groups of the torsion spring 8 and the pin shaft 7 are symmetrically arranged about the central axis of the wrench 4;

[0021] See also Figure 1 and Figure 2 It can be seen that when the sampling head 5 is assembled with the sampling tube head 2, the sampling head 5 is prone to be skewed in direction, and two people are required to operate synchronously, which is a waste of manpower. For this reason, the wrench 4 can be pushed to both ends to make it deflect with the pin shaft 7 as the axis, and at the same time, the wrench 4 releases the squeezing of the pressure ring 1. At this time, the sampling head 5 is aligned with the sampling tube head 2, and the wrench 4 is pressed in the direction of the sampling tube head 2, so that the wrench 4 squeezes the pressure ring 1, and at the same time, the pressure ring 1 squeezes the sampling head 5 through the high-elasticity heat-resistant rubber pad 6, thereby realizing the rapid docking assembly between the sampling head 5 and the sampling tube head 2. The structure is simple and the operation is convenient. It can be completed quickly by one person, and there will be no phenomenon such as the sampling head 5 being skewed in direction.

[0022] See also Figure 1 and Figure 2 It can be seen that two of the wrenches 4 are symmetrically arranged about the central axis of the sampling tube head 2, which can make it easier to evenly force the pressure ring 1 and the high-elasticity heat-resistant rubber pad 6 to improve the stability after installation. The wrenches 4 are on both sides of the cigarette gun groove 3. After clamping, the tail end of the wrench 4 will enter the rear position of the cigarette gun groove 3, thereby preventing accidental touch and improving the safety of use.

[0023] See also Figure 1 and Figure 3 It can be seen that a filter membrane 10 is provided inside the sampling tube head 2 on one side of the support net 11. The specification of the filter membrane 10 is 47 mm, and it can be used to filter particulate matter in the gas.

[0024] See also Figure 1 and Figure 3 It can be seen that the outer surface of one end of the sampling head 5 is provided with an end cap, and the end cap is made of PVC material. The end of the sampling head 5 can be closed by the end cap to prevent debris from entering when not in use, thereby protecting the sampling head 5.

[0025] See also Figure 1 and Figure 3It can be seen that an aluminum foil sealing ring 9 is provided on one side of the interior of the sampling tube head 2, and a support net 11 is provided on one side of the aluminum foil sealing ring 9 inside the sampling tube head 2, which can be used to support the filter membrane 10 to improve its installation stability. The support net 11 is made of stainless steel, which is hard and not easy to deform, so that it has a long service life.

[0026] The working principle of the utility model is: when the ultra-low particle sampling head clamping device is used, the wrench 4 can be pushed to both ends to make it deflect with the pin shaft 7 as the axis, so that the wrench 4 releases the squeezing of the pressing ring 1. At this time, the sampling head 5 is aligned with the sampling tube head 2, and the wrench 4 is pressed toward the sampling tube head 2, so that the wrench 4 squeezes the pressing ring 1. At the same time, the pressing ring 1 squeezes the sampling head 5 through the high-elasticity heat-resistant rubber pad 6, thereby realizing the rapid docking assembly between the sampling head 5 and the sampling tube head 2. The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0027] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A ultra-low particle sampling head clamping device, comprising a pressing ring (1), a sampling tube head (2) and a sampling head (5), characterized in that: The pressing ring (1) is sleeved on the outside of the sampling head (5), a high-elasticity heat-resistant rubber pad (6) is arranged between the pressing ring (1) and the sampling head (5), and a sampling tube head (2) is arranged on one side of the sampling head (5).

2. The ultra-low particle sampling head pressing device according to claim 1 is characterized in that: The outer surface of the sampling tube head (2) is provided with a smoke gun groove (3), the interior of the smoke gun groove (3) is rotatably connected with a pin shaft (7), and a wrench (4) is welded between two of the pin shafts (7).

3. The ultra-low particle sampling head pressing device according to claim 2 is characterized in that: A torsion spring (8) is welded between the wrench (4) and the cigarette gun slot (3), and the wrench (4) and the cigarette gun slot (3) form an elastic structure through the torsion spring (8). The torsion spring (8) and the pin shaft (7) are both symmetrically arranged in two groups about the central axis of the wrench (4).

4. The ultra-low particle sampling head pressing device according to claim 3 is characterized in that: Two wrenches (4) are symmetrically arranged about the central axis of the sampling tube head (2).

5. The ultra-low particle sampling head pressing device according to claim 1 is characterized in that: An aluminum foil sealing ring (9) is arranged on one side of the interior of the sampling tube head (2), and a support net (11) is arranged on one side of the aluminum foil sealing ring (9) inside the sampling tube head (2), and the support net (11) is made of stainless steel.

6. The ultra-low particle sampling head pressing device according to claim 5 is characterized in that: A filter membrane (10) is arranged inside the sampling tube head (2) on one side of the support net (11), and the specification of the filter membrane (10) is 47 mm.

7. The ultra-low particle sampling head pressing device according to claim 1 is characterized in that: The outer surface of one end of the sampling head (5) is provided with an end cap, and the end cap is made of PVC material.

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