CN210613749U

CN210613749U - Sampler

Info

Publication number: CN210613749U
Application number: CN201921425174.7U
Authority: CN
Inventors: 刘伟倩; 袁晓洁; 曹君君; 徐菲菲; 高亚会; 赵欢敏
Original assignee: Hebei Crown Zhuo Testing Polytron Technologies Inc
Current assignee: Hebei Crown Zhuo Testing Polytron Technologies Inc
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-05-26
Anticipated expiration: 2029-08-29

Abstract

The utility model provides a sampler, which belongs to the technical field of reagent extraction and comprises a sleeve body, a piston rod, a limiting part and a control rod, wherein a cavity is arranged in the sleeve body and is made of transparent material, one end of the sleeve body is open, the other end of the sleeve body is provided with a water suction port, the inner wall of the sleeve body is provided with a first internal thread, and the outer wall of the sleeve body is provided with a first scale strip; the piston rod is arranged in the cavity of the sleeve body, one end of the piston rod is provided with a piston head, and the piston head and the inner wall of the sleeve body are arranged in a sliding and sealing manner; the outer wall of the limiting piece is provided with a first external thread which is matched and connected with the first internal thread, the limiting piece and the first scale bar are provided with an overlapping area in the direction vertical to the length direction of the sleeve body, the middle part of the limiting piece is provided with a through hole, and the piston rod is arranged in the through hole in a penetrating way; the control rod is detachably connected with the limiting part and is used for driving the limiting part to rotate. The utility model provides a solution can be quantitatively extracted to the sampler, need not the operator and looks over the scale in real time, easy operation and efficient.

Description

Sampler

Technical Field

The utility model belongs to the technical field of the reagent draws, more specifically says, relates to a sampler.

Background

In chemical experiments and food ingredient detection, a specified dosage of solution is often required to be added, the dosage is accurate, and the inaccurate detection bureau can be caused by excessive or insufficient addition. Therefore, the measuring cylinder, the burette with scales and other tools are brought into operation, when the measuring cylinder is used for measuring, in order to ensure the liquid taking precision, an operator needs to pour the solution into the measuring cylinder and ensure that the own sight line is flush with the scale marks. And the graduated flask is generally placed on the laboratory bench, flushes with the scale in order to guarantee own sight, and the operator often will squat the operation half or constantly adjust the seat height as required, influences efficiency, and is inconvenient. The same is true of the burette, and the drop is taken to be flush with the implement, and the drop is checked and converted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sampler aims at solving the inconvenient, efficiency of influence of operation when ration is taken a sample of sampling appliances such as current graduated flask, burette.

In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a sampler comprising:

the sleeve body is internally provided with a cavity and is made of transparent materials, one end of the sleeve body is open, the other end of the sleeve body is provided with a water suction port, the inner wall of the sleeve body is provided with a first internal thread, and the outer wall of the sleeve body is provided with a first scale bar;

the piston rod is arranged in the cavity of the sleeve body, one end of the piston rod is provided with a piston head, and the piston head and the inner wall of the sleeve body are arranged in a sliding and sealing manner;

the outer wall of the limiting piece is provided with a first external thread which is matched and connected with the first internal thread, the limiting piece and the first scale bar are provided with an overlapping area in the direction vertical to the length direction of the sleeve body, the middle part of the limiting piece is provided with a through hole, and the piston rod is arranged in the through hole in a penetrating mode; and

and the control rod is detachably connected with the limiting part and used for driving the limiting part to rotate.

As another embodiment of this application, the locating part cross-section is type and the less segment cover of diameter is equipped with the indicating ring for protruding, the indicating ring is used for instructing scale mark on the first scale bar.

As another embodiment of the present application, the limiting member is provided with a positioning hole, and the control rod is inserted into the positioning hole.

As another embodiment of the present application, the lever includes:

the rod handle is provided with a second external thread;

the rod head is provided with a connecting hole, a second internal thread is arranged on the connecting hole, the rod handle is in threaded connection with the rod head, and the rod head is connected with the limiting part in an inserted mode.

As another embodiment of the application, the positioning hole is a regular pentagon, and the club head is a regular pentaprism.

As another embodiment of the present application, the limiting member is connected to the piston head through a connecting rod, and the connecting rod is a telescopic rod.

As another embodiment of the application, the piston head is provided with an annular sliding groove, and the connecting rod is in sliding connection with the sliding groove.

As another embodiment of the present application, the connecting rod includes:

the fixed rod is connected with the limiting piece and is provided with a through step hole;

the sliding rod is sleeved in the fixing rod, a connecting plate is arranged at one end of the sliding rod, the connecting plate is slidably arranged in the step hole and is limited by means of a step surface, and the other end of the sliding rod is slidably connected with the sliding groove.

As another embodiment of this application, it is provided with the gyro wheel to slide in the spout, the gyro wheel with the slide bar rotates to be connected.

As another embodiment of the application, the sleeve body is provided with a second scale bar, and the second scale bar is positioned below the first scale bar.

The utility model provides a beneficial effect of sampler lies in: compared with the prior art, the utility model discloses the sampler, the one end of the cover body is opened, the other end is equipped with the water sucking mouth, liquid gets into set body cavity by the water sucking mouth in, be equipped with first internal thread on the inner wall of the cover body, be equipped with first scale strip on the outer wall of the cover body, first external screw thread threaded connection on first internal thread and the locating part, locating part and first scale strip have overlap region in the direction with set body length direction looks vertically, the piston rod passes the through-hole of locating part and locates in the inner chamber of the cover body, the one end of piston is equipped with the piston head, the piston head sets up with set body sliding seal, realize drawing and the release of liquid style. And meanwhile, a control rod is arranged and connected with the limiting part, the limiting part is controlled by the control rod to rotate to a position corresponding to the preset scale on the first scale bar, and then the piston rod is pulled to be in contact with the limiting part to absorb quantitative solution. Through set for the assigned position with the locating part in advance before absorbing solution, need incessantly observe the problem of scale mark when having avoided manual operation for it is more convenient to operate, has improved work efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic external structural diagram of a sampler provided in an embodiment of the present invention;

fig. 2 is a top view of a sampler provided in an embodiment of the present invention;

fig. 3 is an exploded view of a control stick according to an embodiment of the present invention;

FIG. 4 is a sectional view taken along line A-A of FIG. 2;

fig. 5 is a schematic view of an internal structure provided in an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a limiting member according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a connecting rod according to an embodiment of the present invention.

In the figure: 1. a sleeve body; 2. a piston rod; 3. an end plate; 4. a control lever; 5. a first scale bar; 6. a second scale bar; 8. a limiting member; 9. a connecting rod; 10. a piston head; 11. a chute; 13. an indicator ring; 14. a roller; 401. a stem; 402. a club head; 801. positioning holes; 901. fixing the rod; 902. a slide bar.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 and fig. 2 together, the sampler provided by the present invention will now be described. The sampler comprises a sleeve body 1, a piston rod 2, a limiting piece 8 and an operating rod 4, wherein a cavity is arranged in the sleeve body 1 and is made of transparent materials, one end of the sleeve body 1 is open, the other end of the sleeve body is provided with a water suction port, a first internal thread is arranged on the inner wall of the sleeve body 1, and a first scale bar 5 is arranged on the outer wall of the sleeve body 1; the piston rod 2 is arranged in the cavity of the sleeve body 1, one end of the piston rod 2 is provided with a piston head 10, and the piston head 10 and the inner wall of the sleeve body 1 are arranged in a sliding and sealing manner; a first external thread which is matched and connected with the first threaded hole is arranged on the outer wall of the limiting piece 8, an overlapping area is formed between the limiting piece 8 and the first scale bar 5 in the direction vertical to the length direction of the sleeve body 1, a through hole is formed in the limiting piece 8, and the piston rod 2 is arranged in the through hole in a penetrating mode; the control rod 4 is detachably connected with the limiting part 8, and the control rod 4 is used for driving the limiting part 8 to rotate.

The utility model provides a sampler, compared with the prior art, the one end of the cover body 1 is opened, the other end is equipped with the water sucking mouth, liquid gets into in the 1 cavity of the cover body by the water sucking mouth, be equipped with first internal thread on the inner wall of the cover body 1, be equipped with first scale strip 5 on the outer wall of the cover body 1, first external screw thread threaded connection on first internal thread and the locating part 8, locating part 8 and first scale strip 5 have overlapping region on the direction with the 1 length direction looks vertically of the cover body, piston rod 2 passes in the inner chamber of the cover body 1 is located to the through-hole of locating part 8, the one end of piston is equipped with piston head 10, piston head 10 sets up with the 1 sliding seal of the cover body, realize drawing and releasing. Set up control lever 4 simultaneously, control lever 4 links to each other with locating part 8, controls locating part 8 through control lever 4 and rotates to the position corresponding with the scale of predetermineeing on the first scale strip 5, and then pulls piston rod 2 to contact with locating part 8, absorbs quantitative solution. Through set for the assigned position with locating part 8 in advance before absorbing solution, need incessantly observe the problem of scale mark when having avoided manual operation for it is more convenient to operate, has improved work efficiency.

In this embodiment, the piston head 10 can be tightly fitted with the sleeve body 1 by wrapping rubber materials, and the end of the piston away from the piston head 10 is provided with an end plate 3 which is convenient for a person to push and pull the piston rod 2. In use, the piston head 10 is pushed to the bottom end to block the water inlet, and the control rod 4 rotates the limiting member 8 to move the limiting member 8 to a position corresponding to the preset scale on the first scale strip 5. The control rod 4 can then be detached from the stop 8, pulling the piston into contact with the stop 8, thereby sucking up a defined amount of solution. The control rod 4 and the limiting part 8 are designed to be detachably connected, and only when the position of the limiting part 8 needs to be adjusted, the control rod 4 is effectively prevented from influencing the push-pull of the piston rod 2, so that the operation is more convenient.

As a specific implementation manner of the sampler provided in the present invention, please refer to fig. 6, the cross section of the limiting member 8 is a convex shape, and the smaller section of the diameter is sleeved with an indicating ring 13, and the indicating ring 13 is used for indicating the scale marks on the first scale bar 5. The degree is more convenient by arranging the indicating ring 13 to indicate the scale.

As a specific implementation manner of the sampler provided in the present invention, please refer to fig. 6, a positioning hole 801 is disposed on the limiting member 8, and the control rod 4 is inserted into the positioning hole 801. The control rod 4 is convenient to disassemble and assemble by adopting the plug-in connection mode.

As a specific embodiment of the sampler provided in the present invention, please refer to fig. 3, the control rod 4 includes a rod handle 401 and a rod head 402, and the rod handle 401 is provided with a second external thread; the rod head 402 is provided with a connecting hole, the connecting hole is provided with a second internal thread, the rod handle 401 is in threaded connection with the rod head 402, and the rod head 402 is inserted into the limiting part 8. Through the threaded connection of the handle 401 and the rod head 402, the length of the whole control rod 4 can be adjusted, and the control rod 4 can be adjusted to a proper length according to different positions of the limiting part 8.

As a specific embodiment of the sampler provided in the present invention, please refer to fig. 3, the positioning hole 801 is a regular pentagon, and the rod head 402 is a regular pentaprism. The positioning hole 801 is designed to be a regular pentagon, and the club head 402 is a regular pentaprism, so that the control rod 4 can drive the limiting piece 8 to rotate more conveniently.

As a specific embodiment of the sampler provided in the present invention, please refer to fig. 4, 5, and 7, the limiting member 8 is connected to the piston head 10 through a connecting rod 9. The connecting rod 9 is a telescopic rod.

In this embodiment, the piston head 10 and the limiting member 8 are arranged at a certain interval through the connecting rod 9, and the telescopic rod does not affect the movement of the piston head 10, so that the piston head 10 has a certain drawing space, and is used for limiting the minimum distance between the piston head 10 and the limiting member 8, and the piston head 10 does not enter the first internal thread region. If the first internal thread region is entered, the solution will enter the thread socket of the first internal thread, resulting in an inaccurate scale mark on the first scale bar 5. The arrangement of the piston head 10 and the limiting member 8 at a certain interval can distinguish the first internal thread section from the smooth section, so that the sampler is more accurate.

As a specific embodiment of the sampler provided in the present invention, please refer to fig. 4, 5, and 7, an annular chute 11 is disposed on the piston head 10, and the connecting rod 9 is slidably connected to the chute 11. The piston head 10 is matched with the sleeve body 1 in a sliding and sealing mode, the piston head 10 is provided with the annular sliding groove 11, the connecting rod 9 is connected with the sliding groove 11 in a sliding mode, and the piston head 10 is effectively prevented from rotating along with the limiting piece 8 when the limiting piece rotates. The piston head 10 is rotated to provide a certain frictional resistance, so that the limiting member 8 is not rotated conveniently.

As a specific embodiment of the sampler provided in the present invention, please refer to fig. 7, the connection rod 9 includes a fixing rod 901 and a sliding rod 902, the fixing rod 901 is connected to the limiting member 8, and the fixing rod 901 is provided with a through step hole; the sliding rod 902 is sleeved in the fixed rod 901, one end of the sliding rod 902 is provided with a connecting plate, the connecting plate is slidably arranged in the step hole and is limited by means of a step surface, and the other end of the sliding rod 902 is slidably connected with the sliding groove 11.

As a specific embodiment of the sampler provided in the present invention, please refer to fig. 4, 5, and 7, a roller 14 is slidably disposed in the chute 11, and the roller 14 is rotatably connected to the sliding rod 902. A roller 14 is arranged in the sliding chute 11, and the sliding rod 902 is rotatably connected with the roller 14, so that the sliding is smoother.

As a specific implementation manner of the sampler provided in the present invention, please refer to fig. 1, a second scale bar 6 is disposed on the cover body 1, and the second scale bar 6 is located below the first scale bar 5. The second scale bar 6 is arranged on the sleeve body 1, so that an operator can directly observe the absorption amount of the solution. Before each solution extraction, whether the position of the limiting part 8 corresponds to the scale is determined to be accurate or not so as to determine that the sampler is accurate and then is used.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A sampler, comprising:

2. The sampler of claim 1, wherein the limiting member is convex in cross section, and a small section with a smaller diameter is sleeved with an indicating ring, and the indicating ring is used for indicating the scale marks on the first scale bar.

3. The sampler of claim 1, wherein the retaining member has a positioning hole, and the lever is inserted into the positioning hole.

4. A sampler according to claim 3, in which the lever comprises:

the rod handle is provided with a second external thread;

5. The sampler of claim 4, wherein the positioning hole is a regular pentagon and the rod head is a regular pentaprism.

6. A sampler according to claim 1, in which the retaining member is connected to the piston head by a connecting rod, the connecting rod being a telescopic rod.

7. A sampler according to claim 6, wherein the piston head is provided with an annular slide groove, the connecting rod being slidably connected to the slide groove.

8. The sampler of claim 7, wherein the connecting rod comprises:

9. The sampler of claim 8, wherein a roller is slidably disposed within the slide slot, the roller being rotatably coupled to the slide rod.

10. The sampler of claim 1, wherein the sheath body is provided with a second graduated strip, and the second graduated strip is positioned below the first graduated strip.