Sampler for chemical quality inspection

Abstract

The utility model discloses a sampler for chemical quality inspection, which belongs to the field of chemical detection and comprises a sampling barrel with a closed bottom and a suction pipe; the sampling piston is slidably arranged in the sampling barrel through a piston rod, and the piston rod and the sampling piston are detachably connected; the sealing cover is detachably arranged on the suction pipe; the sampling device has the beneficial effects that by arranging the detachable sampling piston, the detachable piston rod and the detachable sealing cover, the sampling barrel after sampling can be more conveniently stored, the volume of the sampling barrel in a storage state is greatly reduced, and one piston rod can be used for completing sampling operation on a plurality of sampling barrels, so that the sampling device is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical detection, in particular to a sampler for chemical quality inspection. Background Art

[0002] Chemical engineering is the technology of using chemical methods to change the composition and structure of substances or synthesize new substances, that is, chemical process. The resulting products are called chemicals or chemical products.

[0003] After sampling, the existing chemical detection samplers are unable to seal and store the sampled wastewater. Long-term contact with air has a great impact on the detection structure of the wastewater. In addition, most of the existing samplers are pull-out type. After sampling, the sampler pull-out structure is pulled out, and the space occupied by the sampler is very large, which is not easy to store.

[0004] Therefore, we propose a sampler for chemical quality inspection. Summary of the Invention

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides a sampler for chemical quality inspection.

[0006] In order to achieve the above-mentioned purpose of the invention, the technical solution adopted by the present utility model is:

[0007] A sampler for chemical quality inspection comprises: a sampling cylinder with a closed bottom and a suction tube; a sampling piston slidably arranged in the sampling cylinder via a piston rod, wherein the piston rod and the sampling piston are detachably connected; and a sealing cover detachably arranged on the suction tube.

[0008] By detachably connecting the piston rod and the sampling piston and providing a sealing cover, the piston rod can be removed after sampling is completed, and the sealing cover can be connected to the suction tube to store the sampling cylinder. Compared with the existing sampler, the storage volume of the sampling cylinder is greatly reduced, saving space, and the piston rod can be directly installed on another sampling cylinder to perform sampling operations on the other sampling cylinder, which is very convenient. One piston rod can complete the sampling operations of multiple sampling cylinders.

[0009] It is further defined that the bottom surface of the sampling cylinder is a downwardly protruding conical surface, the bottom of the sampling piston is also a cone-shaped surface that matches the bottom surface of the sampling cylinder, and the suction tube is arranged at the center of the bottom surface of the sampling cylinder; setting the bottom surface of the sampling cylinder as a downwardly protruding conical surface facilitates the complete discharge of the liquid sample inside, and also facilitates the cleaning of the sampling cylinder.

[0010] It is further defined that the cross-section of the sampling cylinder is a regular quadrilateral, and the outer diameter of the sampling piston matches the inner diameter of the sampling cylinder; the sampling cylinder is set to a square cylinder in the shape of a regular quadrilateral, and the sampling piston is also set to a regular quadrilateral shape, which can prevent the sampling piston from rotating in the sampling cylinder and facilitate the disassembly between the sampling piston and the piston rod.

[0011] It is further defined that the inner end of the piston rod is provided with an external thread, the top of the sampling piston is provided with a mounting hole, and the mounting hole is provided with an internal thread matching the external thread of the piston rod; the piston rod and the sampling piston are connected by threads, the structure is stable and not easy to fall out, and since the sampling cylinder is a square cylinder, the sampling piston will not rotate when rotating for installation or disassembly, which is very convenient.

[0012] It is further defined that the sampling piston is limited by a limiting structure to prevent the sampling piston from falling out of the sampling tube. The limiting structure includes a hinged ear and a limiting rod. There are two hinged ears. The two hinged ears are spaced apart on the tube wall at the top of the sampling tube. The limiting rod is hinged in the two hinged ears through a hinge axis. Limiting protrusions are provided on both side walls of the limiting rod. A limiting groove matching the limiting protrusion is provided on the inner walls of the two hinged ears corresponding to the vertical and horizontal states of the limiting rod. A limiting groove for the limiting rod to pass through is provided on the side wall of the sampling tube.

[0013] By setting a limit structure, the sampling piston can be prevented from falling out of the sampling tube and causing sample leakage during the storage process, which is safer. The limit rod is hinged by the hinged support ear. By rotating the limit rod, when the limit rod is in a vertical state, the sampling piston can fall out or be installed into the sampling tube. When the limit rod is in a horizontal state, the sampling piston cannot fall out or be installed into the sampling tube. Regardless of whether the limit rod is in a horizontal state or a vertical state, the limit groove and the limit protrusion on the limit rod cooperate to limit the limit rod to prevent it from rotating freely.

[0014] It is further defined that an anti-slip layer is provided on the outer wall of the sampling tube; providing the anti-slip layer on the outer wall of the sampling tube can increase the friction of the sampling tube, making it easier for personnel to take it and operate it.

[0015] It is further defined that a straight-line push-pull handle is horizontally provided at the outer end of the piston rod; the push-pull handle is provided to facilitate pushing and pulling the sampling piston, and the push-pull handle is provided to facilitate rotating the piston rod to achieve disassembly and assembly.

[0016] The beneficial effects of the utility model are: by providing a detachable sampling piston and piston rod, as well as a detachable sealing cover, it is more convenient to store the sampling cylinder after sampling, which greatly reduces the volume of the sampling cylinder in the stored state, and one piston rod can complete the sampling operation on multiple sampling cylinders, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the sampling state of the utility model;

[0018] Figure 2 It is a structural diagram of the utility model in a saved state;

[0019] Figure 3 It is a top view of the limiting structure.

[0020] The symbols of the components are as follows:

[0021] Sampling cylinder 1, suction tube 11, anti-slip layer 12, limiting groove 13, sampling piston 2, mounting block 21, mounting hole 211, piston body 22, piston rod 3, external thread 31, push-pull handle 32, sealing cover 4, limiting structure 5, hinged support ear 51, limiting groove 511, limiting rod 52, limiting protrusion 521, hinged shaft 53. DETAILED DESCRIPTION

[0022] The specific implementation methods of the present invention are described below to facilitate understanding of the present invention by those skilled in the art. However, it should be clear that the present invention is not limited to the scope of the specific implementation methods. For those skilled in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the appended claims, these changes are obvious, and all utility model creations using the concept of the present invention are protected.

[0023] Example:

[0024] like Figure 1-Figure 3As shown, a sampler for chemical quality inspection comprises a sampling cylinder 1, a sampling piston 2, a piston rod 3, a sealing cover 4 and a limiting structure 5; the bottom of the sampling cylinder 1 is closed and provided with a suction tube 11, and the bottom surface of the sampling cylinder 1 is a downwardly convex conical surface; the cross-section of the sampling cylinder 1 is a regular quadrilateral; an anti-slip layer 12 is provided on the outer wall of the sampling cylinder 1; the sampling piston 2 is slidably arranged in the sampling cylinder 1 through the piston rod 3, and the bottom of the sampling piston 2 is also a cone-shaped shape matching the bottom surface of the sampling cylinder 1, and the outer diameter of the sampling piston 2 matches the inner diameter of the sampling cylinder 1; the suction tube 11 is arranged at the center of the bottom surface of the sampling cylinder 1; the inner end of the piston rod 3 is provided with an external thread 31, and the outer end of the piston rod 3 is horizontally provided with a straight push-pull handle 32; the sampling piston 2 comprises an internal mounting block 21 and a piston body 22 covered on the outside of the mounting block 21, and the mounting block 21 is also polygonal to prevent The top of the mounting block 21 is provided with a mounting hole 211, and the mounting hole 211 is provided with an internal thread matching the external thread 31 of the piston rod 3; the sampling piston 2 is limited by the limiting structure 5 to prevent the sampling piston 2 from falling out of the sampling tube 1; the limiting structure 5 includes two hinged ears 51 and a limiting rod 52, and the two hinged ears 51 are provided with two intervals on the cylinder wall at the top of the sampling tube 1, and the limiting rod 52 is hinged in the two hinged ears 51 through the hinge shaft 53. A limiting protrusion 521 is provided on the two side walls of the limiting rod 52, and a limiting groove 511 matching the limiting protrusion 521 is provided on the inner wall of the two hinged ears 51 corresponding to the vertical state and horizontal state of the limiting rod 52. A limiting groove 13 for the limiting rod 52 to pass through is provided on the side wall of the sampling tube 1; the sealing cover 4 is connected to the suction tube 11 by threading.

[0025] The hopper 1 is then opened and closed by the cap 4 and the hopper 1 is opened, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is opened and closed, and the hopper 1 is a square cylinder, and the sampling piston 2 will not rotate when rotating for installation or disassembly, which is very convenient; by setting a limiting structure 5, the sampling piston 2 can be prevented from being dislodged from the sampling cylinder 1 during the storage process, causing sample leakage, which is safer. The limiting rod 52 is hinged by the hinged lug 51, and by rotating the limiting rod 52, when the limiting rod 52 is in a vertical state, the sampling piston 2 can be dislodged or installed in the sampling cylinder 1, and when the limiting rod 52 is in a horizontal state, the sampling piston 2 cannot be dislodged or installed When installed in the sampling tube 1, no matter the limiting rod 52 is in a horizontal state or a vertical state, the limiting groove 511 cooperates with the limiting protrusion 521 on the limiting rod 52 to limit the limiting rod 52 and prevent it from rotating freely; an anti-slip layer 12 is provided on the outer wall of the sampling tube 1 to increase the friction of the sampling tube 1, making it convenient for personnel to take and operate; a push-pull handle 32 is provided to facilitate pushing and pulling the sampling piston 2, and the push-pull handle 32 is set in a straight line shape to facilitate rotating the piston rod 3 for disassembly and assembly.

Claims

1. A sampler for chemical quality inspection, characterized in that: include: A sampling cylinder (1) having a closed bottom and provided with a suction tube (11); A sampling piston (2) is slidably arranged in the sampling cylinder (1) via a piston rod (3), and the piston rod (3) and the sampling piston (2) are detachably connected; The sealing cover (4) is detachably mounted on the suction pipe (11).

2. The chemical quality inspection sampler according to claim 1, characterized in that: The bottom surface of the sampling cylinder (1) is a downwardly convex conical surface, the bottom of the sampling piston (2) is also a cone-shaped surface that matches the bottom surface of the sampling cylinder (1), and the suction tube (11) is arranged at the center of the bottom surface of the sampling cylinder (1).

3. The chemical quality inspection sampler according to claim 2, characterized in that: The cross section of the sampling cylinder (1) is a regular quadrilateral, and the outer diameter of the sampling piston (2) matches the inner diameter of the sampling cylinder (1).

4. The chemical quality inspection sampler according to claim 3, characterized in that: The inner end of the piston rod (3) is provided with an external thread (31), the top of the sampling piston (2) is provided with a mounting hole (211), and the mounting hole (211) is provided with an internal thread matching the external thread (31) of the piston rod (3).

5. The chemical quality inspection sampler according to claim 2, characterized in that: The sampling piston (2) is limited by a limiting structure (5) to prevent the sampling piston (2) from falling out of the sampling tube (1). The limiting structure (5) includes a hinged lug (51) and a limiting rod (52). There are two hinged lugs (51). The two hinged lugs (51) are spaced apart on the wall of the top of the sampling tube (1). The limiting rod (52) is hinged in the two hinged lugs (51) through a hinge shaft (53). A limiting protrusion (521) is provided on both side walls of the limiting rod (52). A limiting groove (511) matching the limiting protrusion (521) is provided on the inner walls of the two hinged lugs (51) corresponding to the vertical state and the horizontal state of the limiting rod (52). A limiting groove (13) for the limiting rod (52) to pass through is provided on the side wall of the sampling tube (1).

6. The chemical quality inspection sampler according to claim 1, characterized in that: An anti-slip layer (12) is provided on the outer wall of the sampling tube (1).

7. The chemical quality inspection sampler according to claim 4, characterized in that: The outer end of the piston rod (3) is horizontally provided with a straight push-pull handle (32).

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