Gas extraction device for fabric deodorization performance test

Abstract

The utility model discloses a gas extraction device for a fabric deodorization performance test. The gas extraction device comprises a gas extraction pipe, a limiting cover, a detection pipe connected with the gas extraction pipe, a handle and a sealing cover, the limiting cover and the sealing cover are located at the two ends of the exhaust pipe respectively, the handle penetrates through the sealing cover and extends into the exhaust pipe, and a piston assembly is arranged at the end, located in the exhaust pipe, of the handle. The limiting cover is conical, and a plurality of clamping assemblies are arranged on the outer wall of the limiting cover. The clamping assembly comprises a guide rail plate and a clamping rod connected with the guide rail plate in a sliding mode. Tooth grooves are formed in the two sides of the guide rail plate, and lock catches matched with the tooth grooves are arranged on the clamping rods. The positions of the clamping rods on the guide rail plate are adjusted in a sliding mode, so that a variable concentric circle is formed to adapt to detection tubes of different sizes, and the application range is widened. And in addition, the situation that the clamping rods are loosened in the clamping process can be effectively prevented, and the clamping stability is guaranteed.

Description

Technical Field

[0001] The utility model relates to a gas extraction device, in particular to a gas extraction device used for testing the deodorizing performance of fabrics. Background Art

[0002] Fabric deodorization performance testing is a key process for evaluating the ability of textiles to eliminate or reduce odors. This test is often used to evaluate the deodorization performance of fabrics to meet consumers' demand for textiles to remain fresh and odorless during wearing, use or storage. The detection tube method is a commonly used test method that evaluates the deodorization performance of fabrics by measuring the concentration of specific chemical gases. Before the test, the test sample and the blank sample need to be cut into a certain size and placed in the center of the bottom of a sealed container. Then, an odor source is added and placed in a constant temperature and humidity incubator for a period of time. During the test, after the fabric sample is in contact with the container containing the odorous gas for a certain period of time, the concentration of the odorous components in the sampling bag containing the sample and the blank sampling bag are measured using a detection tube, and the reduction rate of the odorous component concentration is calculated.

[0003] When testing the deodorizing properties of fabrics using the detection tube method, each detection tube has different requirements for the gas extraction speed, and the gas is usually extracted at a constant speed. Therefore, a specialized gas extraction device is required to assist in completing the deodorizing performance test of fabrics.

[0004] However, the existing gas extraction devices for testing the deodorization performance of fabrics have the following technical problems:

[0005] (1) In existing gas extraction devices, the portion for installing the detection tube is generally formed in one piece. Therefore, a single gas extraction device is only suitable for one type of detection tube. However, existing detection tubes are of various types and sizes, so more gas extraction devices need to be prepared to match the detection tubes, which directly causes a waste of resources.

[0006] (2) Since the detection tube has a certain length, it is easy for the detection tube to be installed unstable during use, causing the detection tube to slip or shift in position, thereby affecting the final test results.

[0007] Therefore, there is an urgent need for a gas extraction device for testing the deodorizing performance of fabrics to solve the technical problems existing in the prior art. Summary of the Invention

[0008] The utility model overcomes the deficiencies of the prior art and provides a gas extraction device for testing the deodorizing performance of fabrics.

[0009] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a gas extraction device for testing the deodorization performance of fabrics, including: an exhaust pipe, a limit cover, a detection tube connected to the exhaust pipe, a handle and a sealing cover.

[0010] The limiting cover and the sealing cover are respectively located at the two ends of the exhaust pipe. The handle passes through the sealing cover and extends into the exhaust pipe. A piston assembly is provided at one end of the handle located in the exhaust pipe.

[0011] The limit cover is conical, and the outer wall of the limit cover is provided with multiple groups of clamping components; the clamping components include: a guide rail plate, and a clamping rod slidably connected to the guide rail plate; both sides of the guide rail plate have teeth grooves, and the clamping rod is provided with a lock that matches the teeth grooves.

[0012] The piston assembly includes: a piston plate, a buffer spring, a pressure sensor, and a baffle; the buffer spring is located between the piston plate and the baffle, and the pressure sensor is located on the piston plate; when the piston plate moves to full displacement, the baffle abuts against the sealing cover.

[0013] In a preferred embodiment of the present invention, a protrusion is provided at the end of the clamping rod, and a protective layer is provided on a side of the clamping rod close to the limiting cover.

[0014] In a preferred embodiment of the present invention, a convex plate is provided on one side of the sealing cover, and the convex plate can abut against the baffle.

[0015] In a preferred embodiment of the present invention, a connecting rod is provided between the handle and the piston assembly, and one end of the connecting rod is plugged into the piston plate.

[0016] In a preferred embodiment of the present invention, one end of the limiting cover is provided with a first external thread, and is connected to the exhaust pipe through the first external thread.

[0017] In a preferred embodiment of the present invention, a second external thread is provided on one side of the sealing cover, and is connected to the other end of the exhaust pipe through the second external thread.

[0018] In a preferred embodiment of the present invention, a soft leather tube is provided at one end of the exhaust pipe connected to the detection pipe.

[0019] In a preferred embodiment of the present invention, the protrusion and the protective layer are both made of rubber.

[0020] In a preferred embodiment of the present invention, a protective shell is provided on a side of the clamping rod away from the limiting cover, and the protective shell is made of plastic material.

[0021] In a preferred embodiment of the present invention, a rubber ring is sleeved on the outside of the piston plate.

[0022] The present invention solves the defects in the background technology and has the following beneficial effects:

[0023] (1) The utility model is provided with a limit cover and a clamping assembly, and when in use, the clamping rod in the clamping assembly can slide on the guide plate, and the position of the clamping rod on the guide plate is adjusted by sliding, thereby forming a variable concentric circle, thereby adapting to detection tubes of different sizes, broadening the scope of application, and effectively preventing the clamping rod from loosening during the clamping process, thereby ensuring the stability of the clamping.

[0024] (2) The utility model provides a rubber protrusion and a protective layer at the end of the clamping rod. When in use, the protrusion can enhance the friction between the end of the clamping rod and the detection tube, thereby further improving the stability of clamping. At the same time, the protective layer on one side of the clamping rod can also avoid damage to the detection tube due to the mutual collision between the outer wall of the clamping rod and the outer wall of the detection tube, thereby further ensuring safety during use.

[0025] (3) The utility model is provided with a buffer spring and a pressure sensor, and when in use, by slowly and evenly pulling the handle, the operator can accurately control the moving speed and distance of the piston plate in the exhaust pipe, thereby ensuring the accuracy and reliability of the test results. And when the baffle on the piston plate abuts the convex plate at the sealing cover, the convex plate will give the baffle a reverse force, thereby increasing the movement resistance of the piston plate. This can effectively prevent the piston plate from moving excessively and avoid the risk of damage to the exhaust pipe or the detection pipe. At the same time, the pressure sensor located on the piston plate can detect the pressure generated by the convex plate in real time, thereby triggering the alarm system to remind the operator to stop pulling in time, further ensuring the safety of the operation and the integrity of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is further described below with reference to the accompanying drawings and embodiments;

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the limit cover of the utility model;

[0030] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure at A in the middle;

[0031] Figure 5 It is a schematic diagram of the connection structure of the piston assembly and the connecting rod of the utility model.

[0032] In the picture:

[0033] 1. Suction pipe; 1.1. Soft leather hose;

[0034] 2. Limit cover; 2.1. First external thread; 2.2. Clamping assembly; 2.2.1. Guide plate; 2.2.2. Alignment; 2.2.3. Clamping rod; 2.2.4. Locking catch; 2.2.5. Protrusion; 2.2.6. Protective layer;

[0035] 3. Inspection and supervision;

[0036] 4. Handle; 4.1. Connecting rod; 4.2. Piston assembly; 4.2.1. Piston plate; 4.2.2. Buffer spring; 4.2.3. Pressure sensor; 4.2.4. Baffle;

[0037] 5. Sealing cover; 5.1. Second external thread; 5.2. Raised plate. DETAILED DESCRIPTION

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show components related to the present invention.

[0039] like Figure 1 As shown, a gas extraction device for testing the deodorizing performance of fabrics includes: an exhaust pipe 1, a limiting cover 2, a detection tube 3 connected to the exhaust pipe 1, a handle 4 and a sealing cover 5.

[0040] like Figure 2 As shown, the limit cover 2 and the sealing cover 5 are respectively located at the two ends of the exhaust pipe 1. The handle 4 passes through the sealing cover 5 and extends into the exhaust pipe 1. The end of the handle 4 located in the exhaust pipe 1 is provided with a piston assembly 4.2. The end of the exhaust pipe 1 connected to the detection pipe 3 is provided with a soft leather tube 1.1.

[0041] like Figure 3 As shown, the limiting cover 2 is tapered, and its outer wall is equipped with multiple clamping assemblies 2.2. These assemblies include a guide plate 2.2.1 and a clamping rod 2.2.3 slidably connected to the guide plate 2.2.1. The guide plate 2.2.1 has tooth grooves 2.2.2 on both sides, and the clamping rod 2.2.3 is equipped with a lock 2.2.4 that engages with the tooth grooves 2.2.2. The clamping rods in the clamping assembly can slide on the guide plate, and the position of the clamping rods on the guide plate can be adjusted by sliding, forming a variable concentric circle, thereby accommodating detection tubes of different sizes and expanding the scope of application.

[0042] like Figure 4 As shown, the end of the clamping rod 2.2.3 is provided with a protrusion 2.2.5, and the side of the clamping rod 2.2.3 close to the limit cover 2 has a protective layer 2.2.6. The protrusion 2.2.5 provides an additional force point during clamping, thereby enhancing the clamping effect; the protective layer 2.2.6 can reduce damage to the fabric surface and increase the safety of the device. A convex plate 5.2 is provided on one side of the sealing cover 5, and the convex plate 5.2 can abut against the baffle 4.2.4. A connecting rod 4.1 is provided between the handle 4 and the piston assembly 4.2, and one end of the connecting rod 4.1 is plugged into the piston plate 4.2.1. A first external thread 2.1 is provided at one end of the limit cover 2, and is connected to the exhaust pipe 1 through the first external thread 2.1.

[0043] In one embodiment, a fixing hook is provided at one end of the connecting rod 4.1 away from the handle 4, and a fixing ring is provided at the piston plate 4.2.1 to cooperate with the fixing hook.

[0044] like Figure 5 As shown, the piston assembly 4.2 includes: a piston plate 4.2.1, a buffer spring 4.2.2, a pressure sensor 4.2.3, and a baffle 4.2.4; the buffer spring 4.2.2 is located between the piston plate 4.2.1 and the baffle 4.2.4, and the pressure sensor 4.2.3 is located on the piston plate 4.2.1; when the piston plate 4.2.1 moves to full displacement, the baffle 4.2.4 abuts against the sealing cover 5. The convex plate will give the baffle a reverse force, thereby increasing the movement resistance of the piston plate. A second external thread 5.1 is provided on one side of the sealing cover, and is connected to the other end of the exhaust pipe 1 through the second external thread 5.1. By slowly and evenly pulling the handle, the operator can accurately control the moving speed and distance of the piston plate in the exhaust pipe, thereby ensuring the accuracy and reliability of the test results.

[0045] In a preferred embodiment, the protrusion 2.2.5 and the protective layer 2.2.6 are both made of rubber. A protective shell made of plastic is provided on the side of the clamping rod 2.2.3 away from the limit cover 2. A rubber ring is sleeved on the outside of the piston plate 4.2.1.

[0046] In a preferred embodiment, the sealing cap 5 comprises an outer cap portion and an inner cap portion, which are circumferentially connected to each other in a sliding manner. A second external thread 5.1 is located on the outer cap portion. To install the sealing cap 5, the outer cap portion is rotated to complete the installation. During this rotation, the inner cap portion is connected to the outer cap portion and slides parallel to the connecting rod 4.1.

[0047] In another embodiment, since the sizes of the detection tubes 3 are inconsistent, when the clamping rod 2.2.3 is used to clamp and fix the thicker detection tube 3, the clamping portion of the clamping rod 2.2.3 is located at the rear end of the detection tube 3, so the clamping rod 2.2.3 will not block the marking on the detection tube 3, so the limit cover 2 can be normally installed at the end of the exhaust pipe 1; when the clamping rod 2.2.3 is used to clamp and fix the thinner detection tube 3, the clamping portion of the clamping rod 2.2.3 is located at the middle and rear end of the detection tube 3, so the clamping rod 2.2.3 will partially block the marking on the detection tube 3, so the limit cover 2 needs to be further rotated and installed toward the handle 4 of the exhaust pipe 1, thereby changing the position of the clamping portion of the clamping rod 2.2.3 at the detection tube 3, thereby further ensuring the applicability of the gas extraction device.

[0048] When using the present invention, first insert one end of the detection tube 3 into the soft leather tube 1.1, and ensure the tightness of the connection between the detection tube 3 and the soft leather tube 1.1, then pass the limit cover 2 through the detection tube 3 and rotate it to the end of the exhaust pipe 1 through the first external thread 2.1, so as to achieve the effect of fixing the detection tube 3.

[0049] Then, the lock buckle 2.2.4 on the limit cover 2 is moved to disengage the lock buckle 2.2.4 from the tooth groove 2.2.2, and then an upward push is given to the lock buckle 2.2.4 to make the clamping rod 2.2.3 slide on the guide plate 2.2.1, so that the end of the clamping rod 2.2.3 fits tightly with the detection tube 3. In the process of continuous upward movement of the clamping rod 2.2.3, the inner diameter of the concentric circle formed between the multiple clamping rods 2.2.3 will continue to shrink, so that it is suitable for clamping detection tubes 3 of different sizes.

[0050] Then hold the handle and pull it slowly, the piston plate 4.2.1 will move slowly and evenly in the exhaust pipe 1. When the baffle 4.2.4 on the piston plate 4.2.1 abuts against the convex plate 5.2 on the sealing cover 5, the convex plate 5.2 will exert a reverse force on the baffle 4.2.4, thereby increasing the movement resistance of the piston plate 4.2.1.

[0051] When the piston plate 4.2.1 contacts the convex plate 5.2, the pressure sensor 4.2.3 on the piston plate 4.2.1 detects the pressure, thereby triggering the alarm system to remind the operator to stop pulling.

[0052] The above description is based on the ideal embodiment of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A gas extraction device for testing the deodorizing performance of fabrics, comprising: The exhaust pipe, the limiting cover, the detection pipe connected to the exhaust pipe, the handle and the sealing cover are characterized by: The limiting cover and the sealing cover are respectively located at both ends of the exhaust pipe, the handle passes through the sealing cover and extends into the exhaust pipe, and a piston assembly is provided at one end of the handle located in the exhaust pipe; The limiting cover is conical, and the outer wall of the limiting cover is provided with multiple groups of clamping components; the clamping components include: a guide rail plate, and a clamping rod slidably connected to the guide rail plate; both sides of the guide rail plate have tooth grooves, and the clamping rod is provided with a lock buckle that matches the tooth grooves; The piston assembly includes: a piston plate, a buffer spring, a pressure sensor and a baffle; the buffer spring is located between the piston plate and the baffle, and the pressure sensor is located on the piston plate; when the piston plate moves to full displacement, the baffle abuts against the sealing cover.

2. A gas extraction device for testing the deodorization performance of fabrics according to claim 1, characterized in that: The end of the clamping rod is provided with a protrusion, and a side of the clamping rod close to the limiting cover is provided with a protective layer.

3. The gas extraction device for testing the deodorization performance of fabrics according to claim 1, characterized in that: A convex plate is provided on one side of the sealing cover, and the convex plate can abut against the baffle.

4. The gas extraction device for testing the deodorization performance of fabrics according to claim 1, characterized in that: A connecting rod is provided between the handle and the piston assembly, and one end of the connecting rod is plugged into the piston plate.

5. The gas extraction device for testing the deodorization performance of fabrics according to claim 1, characterized in that: One end of the limiting cover is provided with a first external thread and is connected to the exhaust pipe through the first external thread.

6. The gas extraction device for testing the deodorization performance of fabrics according to claim 1, characterized in that: A second external thread is provided on one side of the sealing cover, and is connected to the other end of the exhaust pipe through the second external thread.

7. The gas extraction device for testing the deodorization performance of fabrics according to claim 1, characterized in that: One end of the exhaust pipe connected to the detection pipe is provided with a soft leather tube.

8. The gas extraction device for testing the deodorization performance of fabrics according to claim 2, characterized in that: The protrusion and the protective layer are both made of rubber.

9. The gas extraction device for testing the deodorization performance of fabrics according to claim 2, characterized in that: A protective shell is provided on one side of the clamping rod away from the limiting cover, and the protective shell is made of plastic material.

10. The gas extraction device for testing the deodorization performance of fabrics according to claim 1, characterized in that: The outside of the piston plate is sleeved with a rubber ring.

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