Sampling bottle

Abstract

The utility model provides a sampling bottle, and belongs to the technical field of transformer oil sampling. The sampling bottle comprises a bottle body, a sealing cover, a first switch valve, a piston driving part, a piston rod, a piston body and an oil conveying pipe; the piston body is arranged in the bottle body; the sealing cover is arranged at the bottle opening, and the piston driving piece is arranged on the sealing cover; the oil conveying pipe is communicated with an inner cavity of the bottle body. The first switch valve is arranged on the oil conveying pipe. When the sampling bottle is used, the piston body is moved upwards by the piston driving piece, and negative pressure is formed in the rodless cavity in the bottle body at the moment, so that transformer oil in a transformer oil port of a transformer is pressed into the rodless cavity in the bottle body due to atmospheric pressure, and sampling can be completed. Compared with an existing sampling bottle which is directly in butt joint with the transformer oil port of the transformer, the sampling bottle has the advantages that during sampling, due to the fact that negative pressure exists in the sampling bottle, the speed of transformer oil entering the sampling bottle is higher, and the sampling efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of transformer oil sampling, and in particular to a sampling bottle. Background Art

[0002] Transformer oil is a special liquid obtained by distilling and refining natural petroleum. It has good insulation and cooling properties. In the power system, the use of transformer oil is very important. It can not only effectively transfer heat and help the transformer dissipate heat, but also prevent the oxidation of internal components and materials, and play the role of arc extinguishing when a serious internal fault occurs. Since the quality of transformer oil directly affects the operating safety and efficiency of the transformer, it is necessary to sample the transformer oil regularly to timely discover potential problems with the oil, so as to take corresponding maintenance measures. By sampling the transformer oil for chemical analysis, it is ensured that its performance meets the use standards.

[0003] When sampling transformer oil of a transformer, the existing sampling bottle is directly connected to the transformer oil port of the transformer through the sampling bottle.

[0004] Since the existing sampling bottle is directly connected to the transformer oil port of the transformer, the sampling bottle easily causes the transformer oil to flow into the sampling bottle slowly, and when the transformer oil port is slightly blocked, sampling cannot be performed, causing sampling difficulties. Utility Model Content

[0005] The present application provides a sampling bottle, which is used to solve the technical problem of slow sampling speed of the existing sampling bottles.

[0006] The embodiment of the present application provides a sampling bottle, including a bottle body, a sealing cover, a first switch valve, a piston driving member, a piston rod, a piston body and an oil delivery pipe;

[0007] The piston body is slidably connected to the inner cavity of the bottle body, and the piston body abuts against the inner cavity wall of the bottle body;

[0008] The sealing cover is arranged at the bottle mouth of the bottle body, and a vent hole is arranged on the sealing cover, and the vent hole connects the inner cavity of the bottle body with the outside, and the piston driving member is arranged on the sealing cover, one end of the piston rod is connected to the output end of the piston driving member, and the other end of the piston rod is connected to the piston body, and the piston driving member is used to drive the piston rod to move, so as to drive the piston body to move up and down in the inner cavity of the bottle body;

[0009] An oil inlet is provided on the side wall of the bottle body, one end of the oil pipeline is connected to the inner cavity of the bottle body through the oil inlet, and the other end of the oil pipeline is used to be connected to the oil tank. The first switch valve is provided on the oil pipeline, and the first switch valve is used to open or close the oil pipeline.

[0010] In the preferred technical solution of the above-mentioned sampling bottle, it also includes a drain pipe and a second switch valve. A drain port is provided on the side wall of the bottle body, and the drain port is located below the oil inlet. The drain pipe is connected to the inner cavity of the bottle body through the drain port. The second switch valve is provided on the drain pipe, and the second switch valve is used to open or close the drain pipe.

[0011] In the preferred technical solution of the above-mentioned sampling bottle, the piston body includes a piston plate, a clamping assembly and a piston sleeve. The piston plate is clamped with the end of the piston rod away from the piston driving member through the clamping assembly. The piston sleeve is sleeved on the piston plate, and the piston sleeve is used to abut against the inner cavity wall of the bottle body.

[0012] In the preferred technical solution of the sampling bottle, the clamping assembly includes a docking plate and two clamping block assemblies, a mounting groove is provided on one side of the piston plate facing the piston rod, and clamping grooves are respectively provided on two side walls opposite to the mounting groove;

[0013] The docking plate is connected to one end of the piston rod away from the piston driving member, and the two clamping block assemblies are respectively arranged on two opposite side walls of the docking plate, and the two clamping block assemblies are respectively clamped in the two clamping grooves in a one-to-one correspondence.

[0014] In the preferred technical solution of the above-mentioned sampling bottle, the clamping block assembly includes a reset spring, a slide plate and a clamping block, one end of the reset spring is connected to the docking plate, the other end of the reset spring is connected to the slide plate, the slide plate is slidably connected in the mounting groove, the clamping block is arranged on the slide plate, and the slide plate is used to drive the clamping block to be clamped in the clamping groove.

[0015] In the preferred technical solution of the above-mentioned sampling bottle, a docking ring is provided on the outer circle of the bottle mouth of the bottle body, a plurality of bolt grooves are provided on the circumference of the docking ring, a plurality of connecting bolts are provided on the circumference of the sealing cover, and each connecting bolt is connected one by one in each bolt groove.

[0016] In the preferred technical solution of the above sampling bottle, it also includes a sealing gasket, which is arranged between the sealing cover and the bottle mouth of the bottle body.

[0017] In the preferred technical solution of the above sampling bottle, it also includes an exhaust pipe, and the exhaust pipe is arranged at the vent hole.

[0018] In the preferred technical solution of the above sampling bottle, a mounting bracket is provided on a side of the sealing cover away from the bottle body, and the piston driving member is mounted on the mounting bracket.

[0019] In the preferred technical solution of the above sampling bottle, the piston driving member is a cylinder.

[0020] The present application provides a sampling bottle, comprising a bottle body, a sealing cover, a first switch valve, a piston driving member, a piston rod, a piston body and an oil pipeline; the piston body is slidably connected to the inner cavity of the bottle body; the sealing cover is arranged at the bottle mouth of the bottle body, and a vent hole is arranged on the sealing cover, the piston driving member is arranged on the sealing cover, one end of the piston rod is connected to the output end of the piston driving member, and the other end of the piston rod is connected to the piston body; an oil inlet is arranged on the side wall of the bottle body, one end of the oil pipeline is connected to the inner cavity of the bottle body through the oil inlet, the other end of the oil pipeline is used to be connected to the oil tank, and the first switch valve is arranged on the oil pipeline. When in use, firstly, the piston body is driven to the bottom of the inner cavity of the bottle body by the piston driving member, and the first switch valve is closed to insert the oil delivery pipe into the transformer oil port of the transformer, and then the piston body is moved upward by the piston driving member, so that the air in the bottle body will be discharged from the vent hole, and when the piston driving member drives the piston body to be higher than the oil inlet, the first switch valve is opened, and then the piston driving member is continued to move the piston body upward, at this time, the rodless cavity in the bottle body will form a negative pressure, so that the transformer oil in the transformer oil port of the transformer is pressed into the rodless cavity in the bottle body due to the atmospheric pressure, and the sampling can be completed. Compared with the existing sampling bottle directly docked at the transformer oil port of the transformer, the sampling bottle of the present application has a negative pressure in the sampling bottle during sampling, so that the transformer oil enters the sampling bottle faster, thereby solving the technical problem of the slow sampling speed of the existing sampling bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0022] Figure 1 A schematic diagram of the structure of a sampling bottle provided in an embodiment of the present application;

[0023] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0024] Figure 3 for Figure 1 Schematic diagram of the structure from another angle.

[0025] Description of reference numerals:

[0026] 100-bottle; 110-oil inlet; 120-drainage port;

[0027] 200-sealing cover; 210-vent hole;

[0028] 300-first switch valve;

[0029] 400-piston drive;

[0030] 500-piston rod;

[0031] 600-piston body; 610-piston plate; 620-clamping assembly; 621-butt plate; 622-clamping block assembly; 6221-reset spring; 6222-slide plate; 6223-clamping block; 630-piston sleeve;

[0032] 700-Oil pipeline;

[0033] 800-drain pipe;

[0034] 900-second switch valve;

[0035] 1000-installation slot;

[0036] 1100-card slot;

[0037] 1200-docking ring;

[0038] 1300-bolt slot;

[0039] 1400-connecting bolt;

[0040] 1500-Sealing gasket;

[0041] 1600-exhaust pipe;

[0042] 1700 - Mounting bracket.

[0043] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0044] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0045] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0046] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0047] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0048] As mentioned in the background art, it is necessary to regularly sample the transformer oil of the transformer to promptly discover potential problems with the oil and take corresponding maintenance measures. The transformer oil is sampled for testing and analysis to ensure that its performance meets the use standards.

[0049] When sampling transformer oil of a transformer, the existing sampling bottle is directly connected to the transformer oil port of the transformer through the sampling bottle.

[0050] Since the existing sampling bottle is directly connected to the transformer oil port of the transformer, the sampling bottle easily causes the transformer oil to flow into the sampling bottle slowly, and when the transformer oil port is slightly blocked, sampling cannot be performed, causing sampling difficulties.

[0051] In order to solve the technical problem of slow sampling speed of existing sampling bottles, the present application proposes a sampling bottle, including a bottle body, a sealing cover, a first switch valve, a piston driving member, a piston rod, a piston body and an oil pipeline; the piston body is slidably connected to the inner cavity of the bottle body, and the piston body abuts against the inner cavity wall of the bottle body; the sealing cover is arranged at the bottle mouth of the bottle body, and a vent is arranged on the sealing cover, the vent connects the inner cavity of the bottle body with the outside world, the piston driving member is arranged on the sealing cover, one end of the piston rod is connected to the output end of the piston driving member, and the other end of the piston rod is connected to the piston body, and the piston driving member is used to drive the piston rod to move, so as to drive the piston body to move up and down in the inner cavity of the bottle body; an oil inlet is arranged on the side wall of the bottle body, one end of the oil pipeline is connected to the inner cavity of the bottle body through the oil inlet, and the other end of the oil pipeline is used to be connected to the oil tank, the first switch valve is arranged on the oil pipeline, and the first switch valve is used to open or close the oil pipeline.

[0052] The sampling bottle of the present application is provided with a piston driving member on the sealing cover, and the piston driving member drives the piston rod to move, thereby driving the piston body to move up and down in the inner cavity of the bottle body, and the piston body divides the inner cavity of the bottle body into a rod cavity and a rodless cavity.

[0053] When in use, firstly, the piston body is driven to the bottom of the inner cavity of the bottle body by the piston driving member, and the first switch valve is closed to insert the oil delivery pipe into the transformer oil port of the transformer, and then the piston body is moved upward by the piston driving member, so that the air in the bottle body will be discharged from the vent hole, and when the piston driving member drives the piston body to be higher than the oil inlet, the first switch valve is opened, and then the piston driving member is continued to move the piston body upward, at this time, the rodless cavity in the bottle body will form a negative pressure, so that the transformer oil in the transformer oil port of the transformer is pressed into the rodless cavity in the bottle body due to the atmospheric pressure, and the sampling can be completed. Compared with the existing sampling bottle directly docked at the transformer oil port of the transformer, the sampling bottle of the present application has a negative pressure in the sampling bottle during sampling, so that the transformer oil enters the sampling bottle faster, thereby solving the technical problem of the slow sampling speed of the existing sampling bottle.

[0054] The following specific embodiments are combined with the accompanying drawings to describe the technical solution of the application in detail. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0055] Reference Figure 1 , Figure 2 and Figure 3 As shown, Figure 1 A schematic diagram of the structure of a sampling bottle provided in an embodiment of the present application; Figure 2 for Figure 1 A schematic diagram of the enlarged structure at B in the middle; Figure 3 for Figure 1 Schematic diagram of the structure from another angle.

[0056] In the embodiments of this application, refer to Figures 1 to 3 As shown, an embodiment of the present application provides a sampling bottle, including a bottle body 100, a sealing cover 200, a first switch valve 300, a piston driving member 400, a piston rod 500, a piston body 600 and an oil pipeline 700.

[0057] The piston body 600 is slidably connected to the inner cavity of the bottle body 100 , and the piston body 600 abuts against the inner cavity wall of the bottle body 100 .

[0058] The sealing cover 200 is arranged at the bottle mouth of the bottle body 100, and a vent hole 210 is arranged on the sealing cover 200, and the vent hole 210 connects the inner cavity of the bottle body 100 with the outside world. The piston driving component 400 is arranged on the sealing cover 200, one end of the piston rod 500 is connected to the output end of the piston driving component 400, and the other end of the piston rod 500 is connected to the piston body 600. The piston driving component 400 is used to drive the piston rod 500 to move, so as to drive the piston body 600 to move up and down in the inner cavity of the bottle body 100.

[0059] An oil inlet 110 is provided on the side wall of the bottle body 100, one end of the oil pipe 700 is connected to the inner cavity of the bottle body 100 through the oil inlet 110, and the other end of the oil pipe 700 is used to be connected to the oil tank. The first switch valve 300 is provided on the oil pipe 700, and the first switch valve 300 is used to open or close the oil pipe 700.

[0060] The bottle body 100 of the sampling bottle of the present application is slidably connected to the piston body 600 in the inner cavity, and the piston body 600 abuts against the inner cavity wall of the bottle body 100. The piston body 600 matches the inner cavity wall of the bottle body 100, that is, the piston body 600 can abut against the inner cavity wall of the bottle body 100 and slide up and down.

[0061] The sealing cover 200 is covered at the bottle mouth of the bottle body 100. A piston driving component 400 is arranged on the sealing cover 200. The piston driving component 400 drives the piston rod 500 to move, thereby driving the piston body 600 to move up and down in the inner cavity of the bottle body 100. The piston body 600 divides the inner cavity of the bottle body 100 into a rod cavity and a rodless cavity.

[0062] An oil inlet 110 is provided on the side wall of the bottle body 100, that is, the oil inlet 110 is provided on the bottle body 100, the oil inlet 110 is located below the sealing cover 200, and a sufficient distance is ensured between the oil inlet 110 and the bottle mouth of the bottle body 100. The greater the distance between the oil inlet 110 and the bottle mouth of the bottle body 100, the more transformer oil can be pressed into the inner cavity of the bottle body 100.

[0063] The oil pipeline 700 is provided with a first switch valve 300, and the first switch valve 300 is used to open or close the oil pipeline 700. The first switch valve 300 can be a solenoid valve or a manual valve.

[0064] When in use, first, the piston body 600 is driven to the bottom of the inner cavity of the bottle body 100 through the piston driving member 400, and the first switch valve 300 is closed to insert the oil pipe 700 into the transformer oil port of the transformer, and then the piston body 600 is moved upward by the piston driving member 400, so that the air in the bottle body 100 will be discharged from the vent 210, that is, a vacuum will be formed in the rodless cavity at this time, thereby reducing the probability of bubbles forming in the transformer oil entering the rodless cavity, preventing a large number of bubbles from forming in the inner cavity of the bottle body 100, and ensuring the accuracy of subsequent tests.

[0065] When the piston driving member 400 drives the piston body 600 to a position higher than the oil inlet 110, the first switch valve 300 is opened, and then the piston driving member 400 continues to move the piston body 600 upward. At this time, the rodless cavity in the bottle body 100 will form a negative pressure, so that the transformer oil in the transformer oil port of the transformer is pressed into the rodless cavity in the bottle body 100 due to the atmospheric pressure, and the sampling can be completed. Compared with the existing sampling bottle directly docked at the transformer oil port of the transformer, the sampling bottle of the present application has a negative pressure in the sampling bottle during sampling, so that the transformer oil enters the sampling bottle faster, thereby solving the technical problem of the slow sampling speed of the existing sampling bottle. And when the transformer oil port is blocked, under the action of negative pressure, the transformer oil in the transformer oil port will also smoothly enter the sampling bottle, ensuring the smooth progress of sampling.

[0066] In another embodiment, a drain pipe 800 and a second switch valve 900 are further included. A drain port 120 is provided on the side wall of the bottle body 100, and the drain port 120 is located below the oil inlet 110. The drain pipe 800 is connected to the inner cavity of the bottle body 100 through the drain port 120. The second switch valve 900 is provided on the drain pipe 800, and the second switch valve 900 is used to open or close the drain pipe 800.

[0067] In order to facilitate rinsing the bottle body 100 and draining the liquid in the bottle body 100 out of the bottle body 100, in this embodiment, a drain port 120 is further provided on the side wall of the bottle body 100, and a drain pipe 800 is provided at the drain port 120. The end of the drain pipe 800 away from the drain port 120 is used to communicate with a waste pool or a collection container. When in use, after the transformer oil enters the inner cavity of the bottle body 100 from the oil inlet 110, the piston driving member 400 is started to move the piston body 600 up and down, thereby rinsing the inner cavity of the bottle body 100 and the oil delivery pipe 700. After the rinsing is completed, the first switch valve 300 is closed, the second switch valve 900 is opened, and the piston driving member 400 is started to move the piston body 600 downward, and the waste liquid after rinsing is discharged from the drain pipe 800 at the drain port 120 to the waste pool.

[0068] In some embodiments, the piston body 600 includes a piston plate 610, a clamping assembly 620 and a piston sleeve 630. The piston plate 610 is clamped to the end of the piston rod 500 away from the piston driving member 400 through the clamping assembly 620. The piston sleeve 630 is sleeved on the piston plate 610, and the piston sleeve 630 is used to abut against the inner cavity wall of the bottle body 100.

[0069] Since the piston body 600 is a wearing part, when the piston body 600 is worn, it cannot effectively ensure that negative pressure is formed in the inner cavity of the bottle body 100. In this embodiment, the piston sleeve 630 or the piston plate 610 is replaced to ensure the effectiveness of the piston body 600, thereby increasing the service life of the entire piston body 600.

[0070] In other embodiments, the clamping assembly 620 includes a docking plate 621 and two clamping block assemblies 622; a mounting groove 1000 is provided on the side of the piston plate 610 facing the piston rod 500; clamping grooves 1100 are respectively provided on the two opposite side walls of the mounting groove 1000; the docking plate 621 is connected to the end of the piston rod 500 away from the piston driving member 400; the two clamping block assemblies 622 are respectively provided on the two opposite side walls of the docking plate 621; and the two clamping block assemblies 622 are respectively clamped in the two clamping grooves 1100 one by one.

[0071] In this embodiment, the clamping assembly 620 includes a docking plate 621 and two clamping block assemblies 622. The docking plate 621 is fixedly connected to one end of the piston rod 500 away from the piston driving member 400. A clamping block assembly 622 is respectively arranged on the two opposite side walls of the docking plate 621. The two clamping block assemblies 622 are respectively and one by one clamped in the two clamping grooves 1100 of the installation groove 1000, thereby ensuring the stability of the clamping.

[0072] When in use, the docking plate 621 on the piston rod 500 is inserted into the installation groove 1000 so that the clamping block assemblies 622 on both sides of the docking plate 621 are respectively and one by one clamped into the two clamping grooves 1100 in the installation groove 1000.

[0073] In other possible embodiments, the block assembly 622 includes a return spring 6221, a slide plate 6222 and a block 6223, one end of the return spring 6221 is connected to the docking plate 621, the other end of the return spring 6221 is connected to the slide plate 6222, the slide plate 6222 is slidably connected in the installation groove 1000, the block 6223 is arranged on the slide plate 6222, and the slide plate 6222 is used to drive the block 6223 to be clamped in the clamping groove 1100.

[0074] In this embodiment, the return spring 6221 can be retracted. During installation, the slide plate 6222 is pressed against the docking plate 621 to shrink the return spring 6221. Then the slide plate 6222 is slidably connected to the slideway in the installation groove 1000. The slide plate 6222 is released. Under the action of the return spring 6221, the slide plate 6222 drives the clamping block 6223 to be clamped in the clamping groove 1100. When the clamping block 6223 is clamped in the clamping groove 1100, the assembly of the piston plate 610 and the piston rod 500 is completed.

[0075] Furthermore, a limit rod is provided in the installation groove 1000, and the limit rod is used to limit the displacement of the slide plate 6222, so that the slide plate 6222 can only run in the slideway in the installation groove 1000, thereby preventing the slide plate 6222 from deviating from the slideway.

[0076] In some possible embodiments, a docking ring 1200 is provided on the outer circle of the bottle mouth of the bottle body 100, a plurality of bolt grooves 1300 are provided on the circumference of the docking ring 1200, and a plurality of connecting bolts 1400 are provided on the circumference of the sealing cover 200, and each connecting bolt 1400 is connected one by one in each bolt groove 1300.

[0077] In this embodiment, the sealing cover 200 is fixed to the docking ring 1200 by a plurality of connecting bolts 1400 , so that the sealing cover 200 seals the bottle mouth of the bottle body 100 .

[0078] In another possible embodiment, a sealing gasket 1500 is further included, and the sealing gasket 1500 is disposed between the sealing cover 200 and the bottle mouth of the bottle body 100. The sealing gasket 1500 enhances the sealing performance between the sealing cover 200 and the bottle mouth of the bottle body 100.

[0079] In other possible embodiments, an exhaust pipe 1600 is further included, and the exhaust pipe 1600 is arranged at the vent hole 210. The exhaust pipe 1600 has a gas guiding function, and its purpose is to guide the gas in the rod cavity of the bottle body 100 to the outside.

[0080] In one embodiment, a mounting bracket 1700 is provided on one side of the sealing cover 200 away from the bottle body 100, and the piston driving member 400 is mounted on the mounting bracket 1700. In this embodiment, the piston driving member 400 is mounted on one side of the sealing cover 200 away from the bottle body 100 through the mounting bracket 1700, that is, the piston driving member 400 is located outside the bottle body 100, thereby increasing the volume of the bottle body 100 that can accommodate liquid.

[0081] In some embodiments, the piston driving member 400 is a cylinder. The piston driving member 400 can also be a hydraulic cylinder, etc., as long as it can drive the piston rod 500 to move up and down.

[0082] Those skilled in the art will readily appreciate other embodiments of the present application after considering the description and practicing the contents disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The description and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0083] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A sampling bottle, characterized in that: It comprises a bottle body (100), a sealing cover (200), a first switch valve (300), a piston driving member (400), a piston rod (500), a piston body (600) and an oil delivery pipe (700); The piston body (600) is slidably connected to the inner cavity of the bottle body (100), and the piston body (600) abuts against the inner cavity wall of the bottle body (100); The sealing cover (200) is arranged at the bottle mouth of the bottle body (100), and a vent hole (210) is arranged on the sealing cover (200), and the vent hole (210) connects the inner cavity of the bottle body (100) with the outside, and the piston driving member (400) is arranged on the sealing cover (200), one end of the piston rod (500) is connected to the output end of the piston driving member (400), and the other end of the piston rod (500) is connected to the piston body (600), and the piston driving member (400) is used to drive the piston rod (500) to move, so as to drive the piston body (600) to move up and down in the inner cavity of the bottle body (100); An oil inlet (110) is provided on the side wall of the bottle body (100); one end of the oil delivery pipe (700) is connected to the inner cavity of the bottle body (100) through the oil inlet (110); the other end of the oil delivery pipe (700) is used to be connected to the oil tank; the first switch valve (300) is provided on the oil delivery pipe (700); the first switch valve (300) is used to open or close the oil delivery pipe (700).

2. The sampling bottle according to claim 1, characterized in that: The invention also comprises a liquid discharge pipe (800) and a second switch valve (900); a liquid discharge port (120) is arranged on the side wall of the bottle body (100), and the liquid discharge port (120) is located below the oil inlet (110); the liquid discharge pipe (800) is connected with the inner cavity of the bottle body (100) through the liquid discharge port (120); the second switch valve (900) is arranged on the liquid discharge pipe (800), and the second switch valve (900) is used to open or close the liquid discharge pipe (800).

3. The sampling bottle according to claim 1, characterized in that: The piston body (600) includes a piston plate (610), a clamping assembly (620) and a piston sleeve (630); the piston plate (610) is clamped to an end of the piston rod (500) away from the piston driving member (400) through the clamping assembly (620); the piston sleeve (630) is sleeved on the piston plate (610); and the piston sleeve (630) is used to abut against the inner cavity wall of the bottle body (100).

4. The sampling bottle according to claim 3, characterized in that: The clamping assembly (620) comprises a docking plate (621) and two clamping block assemblies (622); a mounting groove (1000) is provided on a side of the piston plate (610) facing the piston rod (500); and clamping grooves (1100) are respectively provided on two side walls opposite to the mounting groove (1000); The docking plate (621) is connected to one end of the piston rod (500) away from the piston driving member (400), and the two clamping block assemblies (622) are respectively arranged on two opposite side walls of the docking plate (621), and the two clamping block assemblies (622) are respectively clamped in the two clamping grooves (1100) in a one-to-one correspondence.

5. The sampling bottle according to claim 4, characterized in that: The clamping block assembly (622) includes a reset spring (6221), a slide plate (6222) and a clamping block (6223), one end of the reset spring (6221) is connected to the docking plate (621), the other end of the reset spring (6221) is connected to the slide plate (6222), the slide plate (6222) is slidably connected in the mounting groove (1000), the clamping block (6223) is arranged on the slide plate (6222), and the slide plate (6222) is used to drive the clamping block (6223) to be clamped in the clamping groove (1100).

6. The sampling bottle according to claim 1, characterized in that: The outer ring of the bottle mouth of the bottle body (100) is provided with a docking ring (1200), and a plurality of bolt grooves (1300) are provided on the circumference of the docking ring (1200). The upper circumference of the sealing cover (200) is provided with a plurality of connecting bolts (1400), and each of the connecting bolts (1400) is connected in a one-to-one correspondence in each of the bolt grooves (1300).

7. The sampling bottle according to claim 6, characterized in that: It also includes a sealing gasket (1500), wherein the sealing gasket (1500) is arranged between the sealing cover (200) and the bottle mouth of the bottle body (100).

8. The sampling bottle according to any one of claims 1 to 7, characterized in that: It also includes an exhaust pipe (1600), wherein the exhaust pipe (1600) is arranged at the vent hole (210).

9. The sampling bottle according to any one of claims 1 to 7, characterized in that: A mounting bracket (1700) is provided on a side of the sealing cover (200) away from the bottle body (100), and the piston driving member (400) is mounted on the mounting bracket (1700).

10. The sampling bottle according to any one of claims 1 to 7, characterized in that: The piston driving member (400) is a cylinder.

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