Sampling device for inspection and detection

Abstract

The utility model belongs to the technical field of inspection and detection, and particularly relates to an inspection and detection sampling device which comprises a vertical rod, first handles are fixed on the outer wall of the top end of the vertical rod in a bilateral symmetry mode, a movable rod is installed in the vertical rod in a sliding mode, and second handles are fixed on the outer wall of the top end of the movable rod in a bilateral symmetry mode. The two second handles are located over the two first handles respectively, the outer side of the movable rod is fixedly sleeved with a plurality of movable blocks in the length direction of the movable rod, a spring is fixedly connected between the topmost movable block and the vertical rod, and sampling assemblies are arranged at the front end of each movable block in a bilateral symmetry mode. Fixing pipes are fixed to the positions, corresponding to the sampling assemblies, of the outer walls of the left side and the right side of the vertical rod, and the sampling assemblies are arranged at the ends, away from the vertical rod, of the fixing pipes. According to the utility model, not only can multi-layer sampling be realized, but also a plurality of samples can be extracted at each layer, so that the reliability of measured data can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of inspection and detection, especially relates to a sampling device for inspection and detection. BACKGROUND

[0002] In the production and processing of products, in order to detect the quality of a batch of products, sample inspection is needed, and in liquid product sampling, sampling devices are also needed to facilitate sample extraction.

[0003] In the Chinese utility model patent with the publication number CN221765011U, a layered sampling device for food inspection and detection is disclosed, the inner rod body can drive multiple pistons to move synchronously on the inside of the sampling pipe, and the use of the one-way exhaust member can quickly complete the layered sampling, and the device has simple structure and low cost, and can be used as disposable tools;

[0004] Through retrieval, it is found that when the sampling device in the above-mentioned comparative document is used for layered sampling, only single sampling can be carried out at each layer position, the sample is single, the measured data has poor reliability, and when the sampling is completed and the device is extracted, the liquid sample is also prone to dripping from the inlet and outlet pipe, and the whole device is used as disposable, which can cause great waste and increase the cost. Therefore, it is urgent to improve the existing sampling device for inspection and detection and provide a sampling device for inspection and detection. UTILITY MODEL CONTENTS

[0005] The utility model aims at the deficiencies in the prior art, provides a sampling device for inspection and detection, which is reasonable in design, simple in structure, convenient for multiple sample extraction, can avoid sample leakage, and the device main body is convenient for recycling, to solve the problems in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A sampling device for inspection and detection, comprising a vertical rod, the top end outer wall of the vertical rod is fixed with a first handle left and right symmetrically, a movable rod is slidably installed in the inside of the vertical rod, the top end outer wall of the movable rod is fixed with a second handle left and right symmetrically, two second handles are located above two first handles respectively, a plurality of movable blocks are fixedly sleeved on the outside of the movable rod along the length direction thereof, a spring is fixedly connected between the top movable block and the vertical rod, a sampling assembly is symmetrically arranged at the front end of each movable block, a fixed pipe is fixed on the position corresponding to the sampling assembly on the left and right outer walls of the vertical rod, and a sampling assembly is arranged at the end of the fixed pipe away from the vertical rod.

[0008] As a preferred implementation, the vertical rod is internally provided with a rectangular slot structure, and the plurality of movable blocks are clamped and slid in the rectangular slot structure and are arranged at equal intervals in the vertical direction.

[0009] As a preferred implementation, the sampling assembly, the fixed tube and the sampling assembly are arranged in one-to-one correspondence, and a plurality of groups of the sampling assembly are linked.

[0010] As a preferred implementation, the sampling assembly comprises a push rod, a piston and a sealing sleeve, one end of the push rod is hingedly connected with the movable block, the other end of the push rod is hingedly connected with the piston, the piston is slidably arranged in the fixed tube, the outer side of the piston is adhesively provided with the sealing sleeve, and the sealing sleeve is sealingly and slidably connected with the fixed tube.

[0011] As a preferred implementation, the fixed tube is internally provided with a groove structure near the upper middle part of one end of the vertical rod, the width of the groove structure is greater than the thickness of the push rod, and the bottom inner wall of the fixed tube is fixedly provided with a limiting block.

[0012] As a preferred implementation, the sampling assembly comprises a collecting cylinder, a sealing ring, a liquid inlet and rubber flaps, the collecting cylinder is threadedly arranged at the end of the fixed tube away from the vertical rod, the end of the collecting cylinder near the fixed tube is adhesively provided with the sealing ring, the end of the collecting cylinder away from the fixed tube is provided with the liquid inlet at the center, and the inner wall of the liquid inlet is annularly adhesively provided with a plurality of rubber flaps, and the rubber flaps are movably sealed at the joint.

[0013] As a preferred implementation, the collecting cylinder and the fixed tube are detachable and have equal inner diameters.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] In the scheme of the utility model, the sampling device can be used for multi-layer sampling, and a plurality of samples can be extracted at each layer position, so that the reliability of measured data can be improved.

[0016] The movable rod and the movable blocks are lowered, the piston is moved into the collecting cylinder by the push rod, the device is vertically inserted into the liquid product container, the second handle is loosened, the movable rod and the movable blocks are raised and reset by the spring, the negative pressure is generated in the collecting cylinder when the piston is reset, and the liquid product is sucked into the collecting cylinder through the liquid inlet.

[0017] The collecting cylinder is provided with a sealing ring at one end, so that the sealing performance of the connection between the collecting cylinder and the fixed tube can be ensured when the collecting cylinder is threadedly connected with the fixed tube, liquid sampling is stable, sample leakage is avoided, the device can be laid horizontally after sampling is completed, each collecting cylinder can be individually disassembled, sample transfer and storage are convenient, the collecting cylinder is made of plastic and can be used once, the device main body can be recycled, waste is avoided, and the use cost is lower. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description, and the drawings will be described as follows:

[0019] Figure 1 It is a perspective view structural schematic diagram of the present application;

[0020] Figure 2 It is a disassembled state structural schematic diagram of the sampling assembly of the present application;

[0021] Figure 3 It is a whole perspective view structural schematic diagram of the sampling assembly of the present application;

[0022] Figure 4 It is a whole side view structural schematic diagram of the sampling assembly of the present application;

[0023] Figure 5 It is a working state perspective view structural schematic diagram of the sampling assembly of the present application.

[0024] In the drawings:

[0025] 1, vertical rod; 2, first handle; 3, movable rod; 4, second handle; 5, movable block; 6, spring; 7, sampling assembly; 71, push rod; 72, piston; 73, sealing sleeve; 8, fixed tube; 9, sampling assembly; 91, collecting cylinder; 92, sealing ring; 93, liquid inlet; 94, rubber baffle; 10, limiting block. DETAILED DESCRIPTION

[0026] The embodiments described below are only part of the embodiments of the present application, and do not represent all the embodiments consistent with the present application. Now, the exemplary embodiments will be described as follows in combination with the drawings:

[0027] As Figures 1-5The utility model discloses a sampling device for inspection and detection, which comprises a vertical rod 1, first handles 2 fixed symmetrically on the top outer wall of the vertical rod 1, a movable rod 3 slidingly installed in the vertical rod 1, second handles 4 fixed symmetrically on the top outer wall of the movable rod 3, two second handles 4 located above two first handles 2 respectively, a plurality of movable blocks 5 fixedly sleeved on the outer side of the movable rod 3 along the length direction of the movable rod 3, springs 6 fixedly connected between the top movable block 5 and the vertical rod 1, sampling assemblies 7 symmetrically arranged on the front end of each movable block 5, fixed pipes 8 fixed on the positions corresponding to the sampling assemblies 7 on the left and right outer walls of the vertical rod 1, and sampling assemblies 9 arranged on the end of the fixed pipes 8 away from the vertical rod 1.

[0028] On the basis of the above structure, a rectangular groove structure is formed in the vertical rod 1, and the plurality of movable blocks 5 are clamped and slidingly arranged in the rectangular groove structure and arranged at equal intervals in the vertical direction.

[0029] In the embodiment, the rectangular groove structure in the vertical rod 1 facilitates stable lifting adjustment of the plurality of movable blocks 5.

[0030] On the basis of the above structure, the sampling assemblies 7, the fixed pipes 8 and the sampling assemblies 9 are arranged in one-to-one correspondence, and the plurality of sampling assemblies 7 are linked.

[0031] In the embodiment, the plurality of sampling assemblies 7 facilitate the suction of liquid samples into the sampling assemblies 9, and convenient sampling is completed.

[0032] On the basis of the above structure, the sampling assembly 7 comprises a push rod 71, a piston 72 and a sealing sleeve 73, one end of the push rod 71 is hinged to the movable block 5, the other end of the push rod 71 is hingedly installed with the piston 72, the piston 72 is slidingly arranged in the fixed pipe 8, the outer side of the piston 72 is adhesively sleeved with the sealing sleeve 73, and the sealing sleeve 73 is sealingly and slidingly connected with the fixed pipe 8.

[0033] In the embodiment, the piston 72 and the sealing sleeve 73 sleeved on the outer side of the piston 72 facilitate the generation of suction force during sliding, and facilitate the extraction of liquid samples.

[0034] On the basis of the above structure, a groove structure is formed in the middle part above the end of the fixed pipe 8 close to the vertical rod 1, the width of the groove structure is greater than the thickness of the push rod 71, and a limiting block 10 is fixedly arranged on the inner wall of the bottom of the fixed pipe 8.

[0035] In the embodiment, the limiting block 10 can limit the sliding range of the piston 72, and the piston 72 is prevented from being separated from the fixed pipe 8.

[0036] Based on the above structure, the sampling component 9 includes a collection cylinder 91, a sealing ring 92, a liquid inlet 93, and rubber baffles 94. The collection cylinder 91 is threadedly installed on the end of the fixed tube 8 away from the vertical rod 1. The sealing ring 92 is bonded to the end of the collection cylinder 91 close to the fixed tube 8. The liquid inlet 93 is opened at the center of the end of the collection cylinder 91 away from the fixed tube 8. Multiple rubber baffles 94 are bonded in a ring on the inner wall of the liquid inlet 93. The junction of the multiple rubber baffles 94 is dynamically sealed.

[0037] In this embodiment, the sealing ring 92 can improve the sealing performance at the connection between the collection tube 91 and the fixed tube 8. After sampling, the rubber baffle 94 can be restored and the liquid inlet 93 can be blocked to prevent sample leakage.

[0038] Based on the above structure, the collecting cylinder 91 and the fixing tube 8 form a detachable structure, and their inner diameters are equal.

[0039] In this embodiment, a detachable collection tube 91 is used to facilitate convenient transfer and preservation of samples. The collection tube 91 is made of plastic and can be used once, while the main body of the device can be recycled to avoid waste and reduce the cost of use.

[0040] The working principle of this utility model is as follows:

[0041] In use, first hold the first handle 2 and the second handle 4 on the left and right sides respectively with both hands, and press down on the second handle 4. This controls the movable lever 3 to move multiple movable blocks 5 vertically downwards simultaneously. At this time, the piston 72 can be moved into the collecting cylinder 91 by the push rod 71. Then the device can be... Figure 1 The device is inserted vertically into the liquid product container. After multiple collection tubes 91 have entered the liquid sample, the second handle 4 can be released, or the second handle 4 can be pulled up by hand to make the movable rod 3 and movable block 5 rise and reset by the spring 6. When the piston 72 slides back to reset, a negative pressure is generated in the collection tube 91, which causes the rubber baffle 94 to bend and deform and suck the liquid product into the collection tube 91 through the liquid inlet 93, thus completing the quick extraction of the liquid sample. After the sampling is completed, the multiple rubber baffles 94 arranged in a ring can be restored and the liquid inlet 93 can be sealed to prevent sample leakage. Then the device can be pulled out.

[0042] This sampling device not only enables multi-layer sampling but also allows for the extraction of multiple samples from each layer, improving the reliability of the measured data. The sealing ring 92 bonded to one end of the collection cylinder 91 ensures a tight seal between the collection cylinder 91 and the fixed tube 8, facilitating stable liquid sampling and preventing sample leakage. Furthermore, the convenient threaded connection allows for easy reassembly after sampling. Figure 2The horizontal placement is performed as shown in the middle part, so that each collecting cylinder 91 is individually disassembled, the sample is conveniently transferred and stored, the collecting cylinder 91 is made of plastic material, can be used once, the device main body can be recycled, waste is avoided, and the use cost is lower.

[0043] The above is only a preferred embodiment of the present application, and is not used to limit the protection scope of the present application; any equivalent change, modification, replacement and transformation made by logical analysis, reasoning or limited experiment on the basis of the prior art according to the conception of the present application should be within the protection scope determined by the claims.

Claims

1. A sampling device for testing and inspection, comprising a vertical rod (1), characterized in that: The top outer wall of the vertical rod (1) is symmetrically fixed with a first handle (2). A movable rod (3) is slidably installed inside the vertical rod (1). The top outer wall of the movable rod (3) is symmetrically fixed with a second handle (4). The two second handles (4) are located directly above the two first handles (2). Multiple movable blocks (5) are fixedly sleeved on the outer side of the movable rod (3) along its length. A spring (6) is fixedly connected between the topmost movable block (5) and the vertical rod (1). A sampling component (7) is symmetrically provided at the front end of each movable block (5). A fixing tube (8) is fixed at the position corresponding to the sampling component (7) on the left and right outer walls of the vertical rod (1). A sampling component (9) is provided at the end of the fixing tube (8) away from the vertical rod (1).

2. The sampling device for testing and inspection according to claim 1, characterized in that: The vertical rod (1) has a rectangular groove structure inside, and multiple movable blocks (5) are engaged and slidably located in the rectangular groove structure and are equally spaced in the vertical direction.

3. The sampling device for testing and inspection according to claim 1, characterized in that: The sampling component (7), the fixing tube (8) and the sampling component (9) are arranged in a one-to-one correspondence, and multiple sets of the sampling components (7) are linked together.

4. A sampling device for testing and inspection according to claim 1, characterized in that: The sampling assembly (7) includes a push rod (71), a piston (72) and a sealing sleeve (73). One end of the push rod (71) is hinged to the movable block (5), and the other end of the push rod (71) is hinged to the piston (72). The piston (72) slides in the fixed tube (8), and the sealing sleeve (73) is adhesively fitted on the outside of the piston (72). The sealing sleeve (73) is slidably connected to the fixed tube (8).

5. A sampling device for testing and inspection according to claim 4, characterized in that: The fixed tube (8) has a groove structure in the middle of the upper part of the end near the vertical rod (1). The width of the groove structure is greater than the thickness of the push rod (71). A limiting block (10) is fixed on the bottom inner wall of the fixed tube (8).

6. A sampling device for testing and inspection according to claim 1, characterized in that: The sampling assembly (9) includes a collection cylinder (91), a sealing ring (92), a liquid inlet (93), and rubber baffles (94). The collection cylinder (91) is threaded onto the end of the fixed tube (8) away from the vertical rod (1). The end of the collection cylinder (91) close to the fixed tube (8) is bonded with a sealing ring (92). The liquid inlet (93) is opened at the center of the end of the collection cylinder (91) away from the fixed tube (8). Multiple rubber baffles (94) are bonded in a ring on the inner wall of the liquid inlet (93). The junctions of the multiple rubber baffles (94) are dynamically sealed.

7. A sampling device for testing and inspection according to claim 6, characterized in that: The collecting tube (91) and the fixing tube (8) form a detachable structure, and their inner diameters are equal.

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