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CN-224231741-U - Pumping type gas detector

CN224231741UCN 224231741 UCN224231741 UCN 224231741UCN-224231741-U

Abstract

The utility model discloses a pumping type gas detector which comprises a gas detector component, wherein the gas detector component comprises a detector main body, an alarm lamp and a gas sensor component, the gas sensor component comprises a built-in sensor shell and a built-in micropump shell which are fixedly connected, the protection component comprises an outer sleeve ring and a protection sleeve which are sleeved on the outer side of the gas sensor component and are connected in a combined mode, a spring plate is arranged on the inner wall of the protection sleeve, a pressing column with one end connected with the spring plate is arranged on the protection sleeve in a sliding mode, a bulge is arranged on the top end of the spring plate, and the outer sleeve ring, the protection sleeve and the dust box are arranged on the outer side of the gas sensor component through the outer sleeve ring, the protection sleeve and the dust box, so that the purpose of separating the gas sensor component from the outside is achieved, and pollutants such as dust, greasy dirt, water vapor and the like are prevented from contacting the gas sensor component, and the pollutants in the gas are adsorbed and settled through a designed dust blocking mechanism.

Inventors

  • WANG JINGJING
  • SHEN XIAOMING
  • CAO FEILONG

Assignees

  • 无锡英凡特科技有限公司

Dates

Publication Date
20260512
Application Date
20250523

Claims (7)

  1. 1. A pumping type gas detector is characterized by comprising The gas detector assembly comprises a detector main body (1), an alarm lamp (2) and a gas sensor assembly (3), wherein the gas sensor assembly (3) comprises a built-in sensor shell (31) and a built-in micropump shell (32) which are fixedly connected; The protection assembly comprises an outer sleeve (4) and a protection sleeve (5) which are sleeved on the outer side of the gas sensor assembly (3) and connected in a combined mode, a spring plate (52) is arranged on the inner wall of the protection sleeve (5), a pressing column (51) with one end connected with the spring plate (52) is penetrated on the protection sleeve (5) in a sliding mode, and a protrusion (521) is arranged on the top end of the spring plate (52); The dust blocking mechanism comprises an ash accumulation box (6) fixedly connected with the bottom end of a protective sleeve (5), an air inlet (7) communicated with the ash accumulation box (6), and a blocking round block (8) connected with the ash accumulation box (6) in a clamping manner, wherein a lifting rod (81) and a net-shaped cylinder (82) are respectively arranged on the surfaces of the blocking round block (8) which are opposite to each other, foam round blocks (83) are arranged in the net-shaped cylinder (82), a baffle (9) is arranged in the ash accumulation box (6), symmetrically distributed ventilation round tubes (91) are welded on the surfaces of the baffle (9), and second separation rings (61) are arranged on the inner surfaces of the ash accumulation box (6).
  2. 2. A pumping gas detector according to claim 1 wherein the inner surface of the outer collar (4) is provided with a first spacer ring (41), the center lines of the first spacer ring (41) and the outer collar (4) are on the same axis, and the protective sleeve (5) and the elastic plate (52) are inserted into a ring cavity a formed between the outer collar (4) and the first spacer ring (41).
  3. 3. A pumping gas detector according to claim 1 wherein the inner side wall of the outer collar (4) is provided with a concave annular groove (42), and the protrusions (521) are engaged with the groove (42).
  4. 4. A pumping gas detector according to claim 1 wherein one end of the spring plate (52) is attached to an inner side wall of the shield sleeve (5), a gap is formed between the other end of the spring plate (52) and the shield sleeve (5), and an inner diameter of the shield sleeve (5) is 1 cm larger than an outer diameter of the cylindrical gas sensor assembly (3).
  5. 5. A pumping type gas detector according to claim 1, wherein a dust-absorbing cotton cloth (92) is adhered to the center of the baffle plate (9).
  6. 6. A pumping gas detector according to claim 1 wherein the outer diameter of the mesh cylinder (82) is the same as the inner diameter of the ventilation circular tube (91), the mesh cylinder (82) corresponds to the ventilation circular tube (91), the top end of the lifting rod (81) is of a sphere structure, and the centers of the air inlet (7), the dust collecting box (6), the baffle plate (9) and the second partition ring (61) are on the same axis.
  7. 7. A pump suction type gas detector according to claim 1, wherein the conveying paths of the gas in the dust collecting box (6) are in the direction b, the gas inlet (7), the direction c, the ventilation circular tube (91), the foam circular block (83) in the net-shaped cylinder (82) and the direction d in sequence.

Description

Pumping type gas detector Technical Field The utility model belongs to the technical field of gas detection devices, and particularly relates to a pumping type gas detector. Background The gas detector is used for detecting the gas concentration in the air in real time, plays a role in safety protection, and has various types, wherein the pumping type gas detector is one of the gas detectors, mainly the gas is actively pumped by the air pump, the gas can be rapidly conveyed to the sensor for detection, the gas detector with the filter is disclosed in an authorization document with the publication number of CN222461428U, and the gas detector is a gas detection device with the structure and principle disclosed; When the pumping type gas detector is used in the place of the industrial environment, a large amount of dust and oil stains can be adsorbed on the surface of the sensor, if the surface of the sensor is covered by pollutants such as dust, oil stains, water vapor and the like, the contact between the gas and the sensor can be blocked, the adsorption and reaction of the gas are affected, so that the detection performance of the sensor is reduced, the sensitivity of the sensor is reduced, and when the pumping type gas detector is used, the design of a protective sensor which does not separate the sensor from the outside exists, and the defect exists; The conventional pumping type gas detector has the problem of not protecting the sensor from the outside when the pumping type gas detector is used in an industrial environment, and the pumping type gas detector is provided. Disclosure of utility model The present utility model is directed to a pumping gas detector, which solves the problem of the pumping gas detector proposed in the above-mentioned background art that the sensor is not protected from the outside. In order to achieve the above object, the present utility model provides a pumping type gas detector comprising The gas detector assembly comprises a detector main body, an alarm lamp and a gas sensor assembly, wherein the gas sensor assembly comprises a built-in sensor shell and a built-in micropump shell which are fixedly connected; The protection assembly comprises an outer sleeve ring and a protection sleeve which are sleeved on the outer side of the gas sensor assembly and are connected in a combined mode, a spring plate is arranged on the inner wall of the protection sleeve, a pressing column with one end connected with the spring plate is penetrated through the protection sleeve in a sliding mode, and a bulge is arranged on the top end of the spring plate; The dust blocking mechanism comprises an ash accumulation box fixedly connected with the bottom end of the protection sleeve, an air inlet communicated with the ash accumulation box and a blocking round block connected with the ash accumulation box in a clamping manner, wherein lifting rods and net-shaped cylinders are respectively arranged on the surfaces of the blocking round blocks, the blocking round block is positioned in the net-shaped cylinders and is provided with foam round blocks, a baffle is arranged in the ash accumulation box, symmetrically distributed ventilation round pipes are welded on the surfaces of the baffle, and a second isolating ring is arranged on the inner surface of the ash accumulation box. Preferably, a first spacing ring is arranged on the inner surface of the outer sleeve ring, the center lines of the first spacing ring and the outer sleeve ring are positioned on the same axis, and the protective sleeve and the elastic plate are inserted into a ring cavity a formed between the outer sleeve ring and the first spacing ring. Preferably, the inner side wall of the outer lantern ring is provided with a concave annular groove, and the protrusion is matched with the groove. Preferably, the spring plate one end is laminated with the inside wall of the protective sleeve, there is a clearance between the other end of the spring plate and the protective sleeve, and the diameter of the inner circle of the protective sleeve is 1 cm greater than the outer diameter of the cylindrical gas sensor assembly. Preferably, the center of the baffle is adhered with dust-absorbing cotton cloth. Preferably, the diameter of the outer circle of the mesh cylinder is the same as the diameter of the inner circle of the ventilation circular tube, the mesh cylinder corresponds to the ventilation circular tube, the top end of the lifting rod is of a sphere structure, and the centers of the air inlet, the ash accumulation box, the baffle plate and the second partition ring are positioned on the same axis. Preferably, the conveying paths of the gas in the dust box are in the direction b, the gas inlet, the direction c, the ventilation circular tube, the foam circular block in the net-shaped cylinder and the direction d in sequence. Compared with the prior art, the utility model has the beneficial effects that: 1. According to the utility model,