Chemical sampler

Abstract

The utility model relates to a chemical sampler which comprises a sampling head, a suction part and a protective cylinder, and one end of the sampling head is used for being inserted into a chemical product; the suction part is fixedly arranged at the other end of the sampling head, the suction part is used for sucking chemical products through the sampling head, and the suction part is also used for accommodating the sucked chemical products; one end of the protection barrel is closed, the other end of the protection barrel is open, a through hole with the diameter larger than that of the sampling head is formed in the position, corresponding to the sampling head, of an end plate of the closed end of the protection barrel, the protection barrel is arranged on the suction part, and the protection barrel can slide on the suction part; the protection barrel can rotate on the suction part so that the through hole can move to one side, back on to the suction part, of the sampling head, and the protection barrel can also rotate on the suction part so that the through hole can rotate to be completely staggered from the sampling head. Due to the adoption of the technical scheme, the possibility that a human body is injured by chemical products can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling devices, in particular to a chemical sampler. Background Art

[0002] In chemical production, it is often necessary to sample chemical products and then send the obtained chemical products to the laboratory for testing. In the process of sampling chemical products, a sampler is an indispensable equipment. The Chinese utility model patent with patent number CN202222830169.2 discloses a sampling device for chemical research and analysis. The device is essentially a sampler for sampling chemical products. In the process of using the device, the pull block can be pulled to drive the card plate to move to the right as a whole until the meshing and fixing relationship between the left outer surface of the card plate and the right outer surface of the push rod body is released, thereby releasing the fixing effect on the push rod body. Then, the push rod body and the circular plate can be pulled as a whole to extract the chemical product through the sampling head, and then the pull block is released, so that the elastic force of the connecting spring pushes the card plate and the pull block to move to the right as a whole, so that the push rod body is fixed for subsequent research and analysis operations. In the process of using the device to sample chemical products, the sampling head will be inserted into the chemical product to extract the chemical product, causing the chemical product to adhere to the outer surface of the sampling head. Some chemical products are corrosive, and the chemical products adhered to the surface of the sampling head will cause harm to the human body when they come into contact with the human body. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a chemical sampler to solve the technical problem in the prior art that during the process of sampling chemical products, the sampling head will enter the chemical product to extract the chemical product, causing the chemical product to adhere to the outer surface of the sampling head, and some chemical products are corrosive. The chemical products adhered to the surface of the sampling head will cause harm to the human body when they come into contact with the human body.

[0004] The utility model is realized by the following technical solutions:

[0005] A chemical sampler comprises a sampling head, a suction part and a protective tube, wherein one end of the sampling head is used for inserting into a chemical product; the suction part is fixedly arranged at the other end of the sampling head, the suction part is used for sucking the chemical product through the sampling head, and the suction part is also used for accommodating the sucked chemical product; one end of the protective tube is closed and the other end is open, a through hole with a diameter larger than that of the sampling head is formed on an end plate of the closed end of the protective tube at a position corresponding to the sampling head, the protective tube is arranged on the suction part, the protective tube can slide on the suction part so that the through hole can be moved to the side of the sampling head facing away from the suction part, and the protective tube can also rotate on the suction part so that the through hole can be rotated to completely offset the sampling head.

[0006] Furthermore, the suction part includes a cylinder with one end closed and the other end open, a piston slidably fitted in the cylinder, and a piston rod with one end fixedly connected to the piston and the other end passing through the other end of the cylinder to the outside of the cylinder; the other end of the sampling head is eccentrically fixed to the closed end plate of the cylinder, and the inner cavity of the sampling head is connected to the inner cavity of the cylinder; the protective cylinder is sleeved on the cylinder, and the inner cavity of the protective cylinder cooperates with the cylinder.

[0007] Furthermore, it also includes a coil spring arranged around the cylinder, one end of the coil spring is fixedly connected to the protection cylinder, and the other end is rotatably connected to the cylinder, and the coil spring is used to provide a pulling force for the protection cylinder toward the other end of the cylinder.

[0008] Furthermore, the outer circumferential surface of the cylinder is recessed inwardly to form an annular groove at a position corresponding to the other end of the coil spring, and the suction part also includes a rotating ring rotatably engaged in the annular groove, and the other end of the coil spring is fixedly connected to the rotating ring.

[0009] Furthermore, it also includes a soft elastic rubber pad arranged in the protection tube, and the soft elastic rubber pad is fixed on the closed end plate of the protection tube. After the protection tube rotates a certain angle, the soft elastic rubber pad faces the sampling head.

[0010] Furthermore, it also includes a wiping portion which is arranged in the protection tube and is used to wipe the outer surface of the sampling head.

[0011] Furthermore, the wiping portion includes a fixed tube fixed on the closed end plate of the protective tube and a sponge column arranged in the fixed tube and adapted to the fixed tube, and a wiping hole matching the sampling head is formed on the sponge column; after the protective tube is rotated a certain angle, the wiping hole is opposite to the sampling head.

[0012] Furthermore, a screw hole is formed on the closed end plate of the protective tube at a position corresponding to the fixing tube; the wiping portion also includes a threaded column screwed into the screw hole, and the fixing tube is fixedly connected to the threaded column.

[0013] The beneficial effects of the utility model are:

[0014] After sampling of the chemical product is completed, the protective cylinder is slid on the suction part to move the through hole to the side of the sampling head facing away from the suction part, and then the protective cylinder is rotated on the suction part to rotate the through hole to completely stagger the sampling head. At this time, the sampling head can be located in the protective cylinder, so that the chemical product attached to the sampling head is not easy to contact the human body, which can reduce the possibility of chemical products causing harm to the human body.

[0015] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a chemical sampler of the utility model;

[0017] Figure 2 This is a top view of a chemical sampler of the utility model;

[0018] Figure 3 for Figure 2 AA section view.

[0019] The meanings of the numbers in the accompanying drawings are:

[0020] Sampling head-1; protection tube-2; through hole-3; cylinder-4; piston-5; piston rod-6; spiral spring-7; rotating ring-8; soft elastic rubber pad-9; fixing tube-10; sponge column-11; wiping hole-12; threaded column-13. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the above description of the utility model, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0026] See also Figure 1-3 The utility model provides a technical solution: a chemical sampler, comprising a sampling head 1, a suction part and a protective tube 2, the sampling head 1 is a round tube, one end of the sampling head 1 is used to insert into the chemical product; the suction part is fixedly arranged at the other end of the sampling head 1, the suction part is used to suck the chemical product through the sampling head 1, and the suction part is also used to accommodate the sucked chemical product; one end of the protective tube 2 is closed and the other end is open, and a through hole 3 with a diameter larger than that of the sampling head 1 is formed on the end plate of the closed end of the protective tube 2 at a position corresponding to the sampling head 1, the protective tube 2 is arranged on the suction part, the protective tube 2 can slide on the suction part, so that the through hole 3 can be moved to the side of the sampling head 1 that is away from the suction part, and the protective tube 2 can also rotate on the suction part, so that the through hole 3 can be rotated to completely stagger the sampling head 1.

[0027] The initial state of the chemical sampler described in the utility model is that the sampling head 1 is located in the through hole 3, and the one end of the sampling head 1 passes through the side of the closed end plate of the protective tube 2 facing away from the suction part.

[0028] When using the chemical sampler of the utility model to sample chemical products, the one end of the sampling head 1 is inserted into the chemical product, and then the suction part can suck the chemical product through the sampling head 1 inserted into the chemical product, and the sucked chemical product is contained in the suction part. At this time, the sampling of the chemical product is completed.

[0029] After completing the sampling of the chemical product, slide the protective tube 2 on the suction part to move the through hole 3 to the side of the sampling head 1 facing away from the suction part, and then rotate the protective tube 2 on the suction part to rotate the through hole 3 to completely offset the sampling head 1. At this time, the sampling head 1 can be located in the protective tube 2, so that the chemical product adhered to the sampling head 1 is not easy to contact the human body, which can reduce the possibility of chemical products causing harm to the human body. The through hole 3 can be completely offset from the sampling head 1, which can reduce the possibility of the sampling head 1 accidentally coming out of the protective tube 2. The sucked chemical product can be contained in the suction part. After completing the sampling of the chemical product, the chemical sampler described in the utility model can be directly sent to the laboratory, and then the chemical product contained in the suction part can be discharged for detection.

[0030] In this embodiment, the suction part includes a cylinder 4, a piston 5 and a piston rod 6. One end of the cylinder 4 is closed and the other end is open. The piston 5 is slidably fitted in the cylinder 4. One end of the piston rod 6 is fixedly connected to the piston 5, and the other end passes through the other end of the cylinder 4 to the outside of the cylinder 4; the other end of the sampling head 1 is eccentrically fixed on the closed end plate of the cylinder 4, and the inner cavity of the sampling head 1 is connected to the inner cavity of the cylinder 4; the protective cylinder 2 is sleeved on the cylinder 4, and the inner cavity of the protective cylinder 2 cooperates with the cylinder 4.

[0031] After the one end of the sampling head 1 is inserted into the chemical product, the piston rod 6 is pulled in the cylinder 4 away from the sampling head 1, and the piston rod 6 drives the piston 5 to move away from the sampling head 1, so that the chemical product can be sucked into the cylinder 4 through the sampling head 1. With this structure, the suction part can suck the chemical product through the sampling head 1, and the suction part can accommodate the sucked chemical product.

[0032] Since the other end of the sampling head 1 is eccentrically fixed on the closed end plate of the cylinder 4, the protective tube 2 is sleeved on the cylinder 4, and the inner cavity of the protective tube 2 cooperates with the cylinder 4. The protective tube 2 can slide on the cylinder 4 to drive the through hole 3 to move to the side of the sampling head 1 that is away from the suction part, and the protective tube 2 can rotate on the cylinder 4 to rotate the through hole 3 to completely stagger the sampling head 1. With this structure, the protective tube 2 can slide on the suction part so that the through hole 3 can move to the side of the sampling head 1 that is away from the suction part, and the protective tube 2 can rotate on the suction part so that the through hole 3 can rotate to completely stagger the sampling head 1.

[0033] After the chemical sampler described in the utility model is sent to the laboratory, the protective cylinder 2 is slid away from the other end of the cylinder 4 to separate the closed end plate of the protective cylinder 2 from the sampling head 1, and then the protective cylinder 2 is rotated on the cylinder 4 to make the sampling head 1 face the through hole 3, and then the protective cylinder 2 is slid toward the other end of the cylinder 4 to make the one end of the sampling head 1 pass through the through hole 3 again to the outside of the protective cylinder 2, and then the piston rod 6 is pushed toward the sampling head 1, and the piston rod 6 pushes the piston 5 toward the sampling head 1 to discharge the chemical product in the cylinder 4 for detection, so that the chemical product contained in the suction part can be discharged for detection.

[0034] In this embodiment, the chemical sampler described in the utility model also includes a coil spring 7, which is arranged on the cylinder 4. One end of the coil spring 7 is fixedly connected to the protective cylinder 2, and the other end is rotatably connected to the cylinder 4. The coil spring 7 is used to provide a pulling force to the other end of the protective cylinder 2 toward the cylinder 4.

[0035] The coil spring 7 is stretched during the process of sliding the protective cylinder 2 on the cylinder 4 to drive the through hole 3 to move to the side of the sampling head 1 facing away from the suction portion. Since the other end of the coil spring 7 is rotatably connected to the cylinder 4, during the process of rotating the protective cylinder 2 on the cylinder 4 to rotate the through hole 3 to completely offset the sampling head 1, the coil spring 7 can rotate with the protective cylinder 2, and the coil spring 7 will not hinder the rotation of the protective cylinder 2.

[0036] After the through hole 3 moves to the side of the sampling head 1 facing away from the suction part and the through hole 3 rotates to completely offset the sampling head 1, the protective tube 2 is loosened, and under the elastic tension of the coil spring 7, the inner side surface of the closed end plate of the protective tube 2 can be pressed against the end of the one end of the sampling head 1. This can further reduce the possibility of the sampling head 1 accidentally passing out of the protective tube 2.

[0037] In this embodiment, the outer circumferential surface of the cylinder 4 is recessed inward to form an annular groove at a position corresponding to the other end of the coil spring 7, and the suction part also includes a rotating ring 8 rotatably engaged in the annular groove, and the other end of the coil spring 7 is fixedly connected to the rotating ring 8.

[0038] The rotating ring 8 can rotate in the annular groove, and the other end of the coil spring 7 is fixedly connected to the rotating ring 8. With this structure, the other end of the coil spring 7 can be rotatably connected to the cylinder 4.

[0039] In this embodiment, a chemical sampler described in the utility model further includes a soft elastic rubber pad 9 disposed in the protective tube 2, and the soft elastic rubber pad 9 is fixedly disposed on the closed end plate of the protective tube 2. After the protective tube 2 is rotated by a certain angle, the soft elastic rubber pad 9 is directly opposite to the sampling head 1. It is only necessary to ensure that the shortest distance from the center of the soft elastic rubber pad 9 to the center line of the protective tube 2 is the same as the shortest distance from the center of the through hole 3 to the center line of the protective tube 2. After the protective tube 2 is rotated by a certain angle, the soft elastic rubber pad 9 can directly face the sampling head 1.

[0040] After the through hole 3 moves to the side of the sampling head 1 facing away from the suction part, the protective tube 2 is rotated at a certain angle so that the soft elastic rubber pad 9 faces the sampling head 1. Then the protective tube 2 is released, and under the elastic tension of the coil spring 7, the soft elastic rubber pad 9 can be pressed against the end of the one end of the sampling head 1, and can play a good sealing role on the end of the one end of the sampling head 1. When the piston rod 6 is pushed toward the direction of the sampling head 1 in an unexpected situation, the chemical product contained in the cylinder 4 is not easily squeezed out, which can reduce the possibility of the chemical product leaking from the cylinder 4 and causing harm to the human body.

[0041] In this embodiment, the chemical sampler described in the utility model further includes a wiping portion, which is disposed in the protective tube 2 and is used to wipe the outer surface of the sampling head 1 .

[0042] After the sampling head 1 completely enters the protective tube 2, the wiping part can wipe the sampling head 1, which can reduce the chemical products remaining on the outer surface of the sampling head 1. When the one end of the sampling head 1 passes through the through hole 3 again to the outside of the protective tube 2, the chemical products on the sampling head 1 have been wiped, and the chemical products remaining on the outer surface of the sampling head 1 have been greatly reduced. Even if the sampling head 1 contacts the human body, the damage to the human body will be greatly reduced.

[0043] In this embodiment, the wiping portion includes a fixed tube 10 and a sponge column 11. The fixed tube 10 is fixed on the closed end plate of the protective tube 2. The sponge column 11 is arranged in the fixed tube 10. The sponge column 11 is adapted to the fixed tube 10. A wiping hole 12 matching the sampling head 1 is formed on the sponge column 11. After the protective tube 2 rotates a certain angle, the wiping hole 12 faces the sampling head 1. It is only necessary to ensure that the shortest distance from the center of the wiping hole 12 to the center line of the protective tube 2 is the same as the shortest distance from the center of the through hole 3 to the center line of the protective tube 2. After the protective tube 2 rotates a certain angle, the wiping hole 12 can face the sampling head 1.

[0044] After completing the sampling of the chemical product, slide the protective tube 2 on the other end of the cylinder 4 facing away from the cylinder 4, so that the end of the fixed tube 10 facing the cylinder 4 moves with the protective tube 2 to the side of the sampling head 1 facing away from the cylinder 4. Then rotate the protective tube 2 on the cylinder 4 by a certain angle so that the wiping hole 12 faces the sampling head 1. Then move the protective tube 2 on the cylinder 4 toward the other end of the cylinder 4, so that the sponge column 11 moves toward the sampling head 1 and is sleeved on the sampling head 1. At this time, the sponge column 11 can wipe the sampling head 1, and the sponge column 11 can absorb the chemical products on the outer surface of the sampling head 1. With this structure, the wiping part can wipe the outer surface of the sampling head 1.

[0045] In this embodiment, the protection tube 2 is made of a transparent material to facilitate observation of whether the wiping hole 12 is facing the sampling head 1 .

[0046] In this embodiment, a screw hole is formed on the closed end plate of the protective tube 2 at a position corresponding to the fixed tube 10; the wiping portion also includes a threaded column 13 screwed into the screw hole, and the fixed tube 10 is fixedly connected to the threaded column 13, that is, the fixed tube 10 is fixed to the closed end plate of the protective tube 2 through the threaded column 13.

[0047] After the chemical product contained in the cylinder 4 is discharged for testing, the threaded column 13 can be rotated in the screw hole to remove the wiper from the closed end plate of the protective cylinder 2. Then the chemical sampler of the present invention is cleaned and dried, and then a new wiper can be installed on the closed end plate of the protective cylinder 2.

[0048] In this embodiment, the soft elastic rubber pad 9 is fixed on the threaded column 13 and is located in the fixing tube 10 , that is, the soft elastic rubber pad 9 is fixed on the closed end plate of the protection tube 2 through the threaded column 13 .

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A chemical sampler, characterized in that: include: A sampling head, one end of which is used to be inserted into the chemical product; A suction part, which is fixedly arranged at the other end of the sampling head, and is used to suck the chemical product through the sampling head, and is also used to contain the sucked chemical product; as well as A protective tube, one end of which is closed and the other end is open, a through hole with a diameter larger than that of the sampling head is formed on an end plate of the closed end of the protective tube at a position corresponding to the sampling head, the protective tube is arranged on the suction part, the protective tube can slide on the suction part so that the through hole can be moved to the side of the sampling head that is away from the suction part, and the protective tube can also rotate on the suction part so that the through hole can be rotated to completely offset the sampling head.

2. A chemical sampler according to claim 1, characterized in that: The suction part includes a cylinder with one end closed and the other end open, a piston slidably fitted in the cylinder, and a piston rod with one end fixedly connected to the piston and the other end passing through the other end of the cylinder to the outside of the cylinder; the other end of the sampling head is eccentrically fixed to the closed end plate of the cylinder, and the inner cavity of the sampling head is connected to the inner cavity of the cylinder; the protective cylinder is sleeved on the cylinder, and the inner cavity of the protective cylinder is matched with the cylinder.

3. A chemical sampler according to claim 2, characterized in that: It also includes a coil spring arranged around the cylinder, one end of the coil spring is fixedly connected to the protection cylinder, and the other end is rotatably connected to the cylinder, and the coil spring is used to provide a pulling force for the protection cylinder toward the other end of the cylinder.

4. A chemical sampler according to claim 3, characterized in that: The outer circumferential surface of the cylinder is recessed inwardly to form an annular groove at a position corresponding to the other end of the coil spring. The suction part also includes a rotating ring rotatably engaged in the annular groove. The other end of the coil spring is fixedly connected to the rotating ring.

5. A chemical sampler according to claim 3, characterized in that: It also includes a soft elastic rubber pad arranged in the protection tube, the soft elastic rubber pad is fixed on the closed end plate of the protection tube, and after the protection tube rotates a certain angle, the soft elastic rubber pad faces the sampling head.

6. A chemical sampler according to claim 2, characterized in that: It also includes a wiping portion which is arranged in the protection tube and is used for wiping the outer surface of the sampling head.

7. A chemical sampler according to claim 6, characterized in that: The wiping portion includes a fixed tube fixed on the closed end plate of the protective tube and a sponge column arranged in the fixed tube and adapted to the fixed tube, and a wiping hole matching the sampling head is formed on the sponge column; after the protective tube is rotated by a certain angle, the wiping hole is opposite to the sampling head.

8. A chemical sampler according to claim 7, characterized in that: A screw hole is formed on the closed end plate of the protection tube at a position corresponding to the fixing tube; the wiping portion also includes a threaded column screwed into the screw hole, and the fixing tube is fixedly connected to the threaded column.

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