CN115219270A

CN115219270A - Lid, liquid sampling bottle, liquid sampling device and notes liquid rifle of liquid sampling bottle

Info

Publication number: CN115219270A
Application number: CN202110739321.3A
Authority: CN
Inventors: 李德旭
Original assignee: Beijing Cloudoptek Technology Co ltd
Current assignee: Beijing Cloudoptek Technology Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-10-21
Also published as: WO2023273454A1

Abstract

The utility model relates to a lid of liquid sampling bottle, liquid sampling device and notes liquid rifle, the lid is including the base that has inlet and liquid outlet, the setting is on the base and can the sealed lid of valve body and detachably setting with the switching liquid outlet of selectivity switching inlet on the base, wherein, the valve body is including motion body and stopping structure, set up on the motion body can with annotate the notes liquid mouth of liquid pipe fluid intercommunication of liquid rifle, the motion body can move along the first direction, and have the first station of the closed inlet that sets gradually along the first direction, annotate the second station of liquid mouth and inlet intercommunication in order to open the inlet and the third station of closed inlet, the stopping structure is used for preventing the motion body to move along the second direction opposite to the first direction. Therefore, the moving body cannot return to the second station from the third station after sampling is finished so as to inject liquid into the bottle, and the possibility of cheating in the transportation process is avoided.

Description

Lid, liquid sampling bottle, liquid sampling device and notes liquid rifle of liquid sampling bottle

Technical Field

The utility model relates to a sewage sampling field specifically relates to a lid, liquid sampling bottle, liquid sampling device and notes liquid rifle of liquid sampling bottle.

Background

At present, the sewage detection process includes sampling-transportation-laboratory detection, and specifically, a sewage sample is obtained by filling sewage into a sampling bottle, and then the sewage sample is transported from a designated laboratory of a sample collection point for analysis. There has been ripe software scheme to whole process control now, for example, set for different two-dimensional code in order to correspond different ID numbers on every sampling bottle, sampling equipment is before filling the sample to the sampling bottle, can sweep the sign indicating number to the sampling bottle earlier, in order to upload appointed network platform with information such as sampling bottle information, sampling equipment serial number, time and place, the laboratory is transported to the sampling bottle to the manual work after the sampling, the laboratory personnel are through sweeping the information that the sign indicating number confirmed the sample to the sampling bottle, the inspection sample obtains corresponding result.

However, in a process like this, if the contaminated water in the bottle is cheated during transportation, for example, the bottle is mixed with other impurities, the inspection result is not in accordance with the actual inspection result.

Disclosure of Invention

The utility model aims at providing a lid, liquid sampling bottle, liquid sampling device and notes liquid rifle of liquid sampling bottle to prevent to carry out the cheating to the sewage sample in the sampling bottle.

In order to achieve the above object, the present disclosure provides a cover body of a liquid sampling bottle, comprising: base, setting that have inlet and liquid outlet are in on the base and can the selective switching the valve body of inlet and detachably set up with the switching on the base the sealed lid of liquid outlet, wherein, the valve body includes the motion body, set up on the motion body can with annotate the notes liquid mouth of liquid pipe fluid intercommunication of liquid rifle, the motion body can follow the first direction and move, and have the edge first station, second station and the third station that the first direction set gradually, wherein first station, the motion body seals the inlet the second station, annotate the liquid mouth with the inlet intercommunication is in order to open the inlet the third station, the motion body seals the inlet, and wherein, the valve body still including set up stopping structure on the base, stopping structure is used for at least first station, second station and the third station prevents the motion body moves along the direction of second that is opposite to first direction.

Optionally, the moving body is a columnar structure with a bottom end inserted into the base, the first direction is a direction rotating clockwise or counterclockwise around a central axis of the columnar structure, a liquid injection channel for inserting the liquid injection pipe is formed in the top end face of the moving body, and the liquid injection port is formed in the side wall of the moving body and communicated with the liquid injection channel.

Optionally, the valve body further comprises a limiting ring which is sleeved on the outer side of the moving body and can elastically deform along the radial direction, and the limiting ring is locked on the base along the circumferential direction; the retaining structure comprises a pawl arranged on the inner peripheral surface of the limiting ring and a ratchet arranged on the outer peripheral surface of the moving body, wherein a first ratchet groove, a second ratchet groove and a third ratchet groove are formed in the ratchet and sequentially arranged on the outer peripheral surface of the moving body, the pawl is clamped in the first ratchet groove when the moving body rotates from the first station to the second station along the first direction, and the pawl is clamped in the second ratchet groove when the moving body rotates from the second station to the third station along the first direction.

Optionally, the moving body further has a fourth station located between the first station and the second station, and when the moving body rotates to the fourth station along the first direction, the liquid injection port and the liquid inlet start to be in fluid communication; the ratchet is also provided with a fourth ratchet groove between the first ratchet groove and the second ratchet groove, and the rotation angle of the first ratchet groove and the fourth ratchet groove in the circumferential direction is smaller than the rotation angle of the moving body from the first station to the fourth station.

Optionally, a downward-protruding limiting portion is formed on the limiting ring, and a limiting groove for accommodating the limiting portion is formed on the base so as to circumferentially limit the limiting ring.

Optionally, a sealing rubber strip is provided on an outer peripheral surface of a portion of the moving body inserted into the base.

Optionally, the valve body further includes a gland that is sleeved outside the moving body and fixed on the base, the gland presses the moving body into the base from the top, and an opening for inserting the liquid injection pipe is arranged at a position of the gland corresponding to the liquid injection passage.

Optionally, the liquid injection gun is provided with a driving lug for radially protruding, and the gland is provided with a vertically extending guide groove for guiding the liquid injection pipe to be inserted into the liquid injection channel by sliding fit with the driving lug; a first driving chute and a second driving chute which are communicated at the bottom end are formed in the outer peripheral surface of the moving body, the first driving chute extends obliquely from the top end surface to the bottom end surface of the moving body along the second direction, and the second driving chute extends obliquely from the bottom end of the first driving chute to the top end surface of the moving body along the second direction; the driving lug is positioned at the top end of the guide groove at the first station, the top end of the first driving sliding groove is aligned with the top end of the guide groove, and when the driving lug moves downwards along the guide groove, the driving lug moves along the first driving sliding groove to drive the moving body to rotate along the first direction to the second station; at the second station, the driving lug is positioned at the bottom end of the guide groove, the bottom ends of the first driving chute and the second driving chute are aligned with the bottom end of the guide groove, and when the driving lug moves upwards along the guide groove, the driving lug moves along the second driving chute to drive the moving body to rotate to the third station along the first direction; and when the third station is carried out, the driving lug is positioned at the top end of the guide groove, and the top end of the second driving sliding groove is aligned with the top end of the guide groove.

Optionally, the first and second drive chutes are formed as a Y-shaped structure with a vertical segment of the Y-shaped structure biased toward the second drive chute.

Optionally, the liquid injection gun has a limiting hook, and a clamping groove for matching with the limiting hook is formed on the outer peripheral surface of the gland, so that when the liquid injection pipe is inserted into the liquid injection channel and the moving body is located at the second station, the limiting hook can be clamped in the clamping groove.

Optionally, annotate the liquid rifle and include the main part and run through the notes liquid pipe of main part to orientation the inboard of main part is in the joint was arrived when rotating in the draw-in groove, and is in the orientation the outside of main part is removed the joint when rotating, spacing pothook with be provided with the elastic component between the main part, the elastic component structure be can for spacing pothook provides the orientation the inboard pivoted elasticity of main part.

Optionally, the base further defines a trapway, the trapway extending from an interior of the base obliquely downward to an exterior surface of the base, the trapway configured to: when the moving body is positioned at the first station, the liquid injection port is communicated with the drainage channel so as to discharge the liquid entering the liquid injection port through the drainage channel.

Optionally, the sealing cover comprises a closure and a pilfer proof ring connected to each other, the sealing cover being configured to: when the blocking cover is opened to enable the liquid outlet to be communicated with external liquid, the anti-theft ring is separated from the blocking cover and locked on the base.

Optionally, the blocking cover is provided with an air hole, and a waterproof air-permeable membrane is arranged on the inner side of the blocking cover corresponding to the air hole.

On above-mentioned technical scheme's basis, this disclosure still provides a liquid sampling bottle, lid among bottle and the above-mentioned technical scheme, the opening has been seted up on the bottle, the opening with inlet and liquid outlet intercommunication.

On above-mentioned technical scheme's basis, this disclosure still provides a liquid sampling device, including the liquid sampling bottle among the above-mentioned technical scheme and annotate the liquid rifle, it can pass through to annotate the liquid rifle the lid to annotate liquid in the bottle.

On the basis of the technical scheme, the present disclosure further provides a liquid injection gun, which is the liquid injection gun in the liquid sampling device in the technical scheme.

Through above-mentioned technical scheme, the lid of the liquid sampling bottle that this disclosure provided can pass through the opening part of base fixed connection at the bottle, with through this lid in to the bottle injected liquid sample, because the valve body of installation has the motion body that can follow the first direction motion on the base, consequently, when sampling liquid, can make the motion body by initial first station along first direction motion to second station, make liquid sample can be in proper order through the notes liquid mouth of motion body and the inlet of base and get into the bottle, later can make the motion body follow first direction motion to third station by the second station, make the motion body seal the inlet of base. Because be provided with the stopping structure in the valve body, consequently, the motion body that moves to the third station after the sampling finishes can't get back to the second station again, that is to say, transports the sampling bottle back to the in-process in laboratory after the sampling and can't annotate the liquid in the sampling bottle again to the possibility of cheating in the transportation has been avoided. This liquid sampling bottle, liquid sampling device and annotate liquid rifle that this disclosure provided have the same technological effect with lid among the above-mentioned technical scheme, avoid unnecessary repetition, do not describe here any longer.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic structural view of a cap of a liquid sampling bottle according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of a lid body without a sealing cover in accordance with an embodiment of the present disclosure;

FIG. 3 is a schematic view of a valve body according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of the structure of the moving body cooperating with the stop collar according to the embodiment of the disclosure;

FIG. 5 is a schematic view of another angle of FIG. 4;

FIG. 6 is a schematic structural view of the assembly of the moving body and the base according to the embodiment of the present disclosure;

FIG. 7 is a schematic view of the assembly of the moving body, the limiting ring and the base according to the embodiment of the disclosure;

FIG. 8 is a cross-sectional view of the motiles at a first station in the base, in accordance with an embodiment of the present disclosure;

FIG. 9 is a schematic view of a fluid injection gun in accordance with an embodiment of the present disclosure;

FIG. 10 is a cross-sectional view of a fluid injection gun in accordance with an embodiment of the present disclosure;

FIG. 11 is a schematic structural view of the liquid injection gun engaged with the valve body when the movable body is at the first station according to the embodiment of the present disclosure;

FIG. 12 is a schematic structural view of the liquid injection gun engaged with the columnar structure when the movable body is at the first station according to the embodiment of the present disclosure;

FIG. 13 is a schematic diagram of a second station of a fluid injection gun-driven vehicle according to an embodiment of the present disclosure;

FIG. 14 is a schematic view of a fluid injection gun in accordance with an embodiment of the present disclosure illustrating a movement of a movable body from a second position to a third position;

FIG. 15 is a schematic view of the injection gun driving the motiles to rotate to a third station in accordance with the embodiment of the present disclosure;

FIG. 16 is a cross-sectional view of the movable body engaging the stop collar at a first station showing the pawl engaged with the first ratchet groove according to an embodiment of the present disclosure;

FIG. 17 is a cross-sectional view of a seal cap according to an embodiment of the present disclosure;

FIG. 18 is a schematic view of a liquid sampling bottle according to an embodiment of the present disclosure.

Description of the reference numerals

1-base, 11-liquid inlet, 12-liquid outlet, 13-limiting groove, 14-sewage channel, 2-valve body, 20-moving body, 201-large diameter section, 202-small diameter section, 21-liquid injection port, 22-limiting ring, 221-limiting part, 222-pawl, 23-sealing rubber strip, 241-first ratchet groove, 242-second ratchet groove, 243-third ratchet groove, 244-fourth ratchet groove, 25-liquid injection channel, 26-pressing cover, 261-guide groove, 262-clamping groove, 263-opening, 271-first driving sliding groove, 272-second driving sliding groove, 3-sealing cover structure, 31-blocking cover, 311-air hole, 32-anti-theft ring, 33-waterproof liquid injection, 4-bottle body, 5-air gun, 50-main body, 51-liquid injection pipe, 52-driving lug, 53-limiting clamping hook, 54-rotating shaft and 55-elastic element.

Detailed Description

The following detailed description of the embodiments of the disclosure refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the use of directional terms such as "inner and outer" means inner and outer relative to the profile of the corresponding component part itself, unless otherwise specified. Terms such as "first," "second," and the like, are used herein to distinguish one element from another, and are not necessarily sequential or significant. Furthermore, in the following description, when referring to the drawings, like reference numbers in different drawings denote like elements.

According to the embodiment of the present disclosure, as shown in fig. 1 to 8, a cover of a liquid sampling bottle may include a base 1 having a liquid inlet 11 and a liquid outlet 12, a valve body 2 disposed on the base 1 and capable of selectively opening and closing the liquid inlet 11, and a sealing cover 3 detachably disposed on the base 1 for opening and closing the liquid outlet 12, wherein, as shown in fig. 3 to 5, the valve body 2 may include a moving body 20, the moving body 20 is provided with a liquid filling port 21 capable of being in fluid communication with a liquid filling pipe 51 of a liquid filling gun 5, the moving body 20 may move along a first direction, and has a first station, a second station, and a third station sequentially disposed along the first direction, wherein the first direction may be a direction moving along a straight line, a direction moving along a curved line, or a direction rotating around a certain rotation axis, in the embodiment of the present disclosure, the arrow direction in fig. 8 indicates a first direction, line a represents the position of the center line of the liquid filling port 21 when the moving body 20 is at the first station, line B represents the position of the center line of the liquid filling port 21 when the moving body 20 is at the second station, and line C represents the position of the center line of the liquid filling port 21 when the moving body 20 is at the third station, wherein the first station is the initial position of the moving body 20 when the cover body is shipped, referring to fig. 8, at the first station, the moving body 20 closes the liquid inlet 11, the liquid filling port 21 is not communicated with the liquid inlet 11, at the second station, the liquid filling port 21 is aligned with the liquid inlet 11 and is in liquid communication to open the liquid inlet 11, at the third station, the moving body 20 closes the liquid inlet 11, the liquid filling port 21 is not communicated with the liquid inlet 11, and wherein the valve body 2 may further include a retaining structure provided on the base 1, the retaining structure is configured to prevent the moving body 20 from moving in a second direction opposite to the first direction at least at the first station, the second station, and the third station.

Through the technical scheme, the cover body of the liquid sampling bottle provided by the disclosure can be fixedly connected to the opening of the bottle body 4 through the base 1, so as to inject a liquid sample into the bottle body 4 through the cover body, and the valve body 2 mounted on the base 1 is provided with the moving body 20 capable of moving along the first direction, so that when the liquid is sampled, the moving body 20 can be moved to the second station from the initial first station along the first direction, so that the liquid sample can sequentially enter the bottle body 4 through the liquid injection port 21 of the moving body 20 and the liquid inlet 11 of the base 1, and then the moving body 20 can be moved to the third station from the second station along the first direction, so that the moving body 20 closes the liquid inlet 11 of the base 1. Because be provided with the stopping structure in the valve body 2, consequently, the motion body 20 that moves to the third station after the sampling finishes can't get back to the second station again, that is to say, can't annotate the liquid in the sampling bottle again with the in-process of sample bottle transport laboratory after the sampling to the possibility of cheating in the transportation has been avoided.

In order to reduce the volume of the cover, referring to fig. 1 to 8, the moving body 20 may be configured as a column structure with the bottom end inserted into the base 1, the first direction is a direction of rotating clockwise or counterclockwise around the central axis of the column structure, so as to improve the space utilization rate by rotating the moving body 20, thereby reducing the volume of the valve body 2, a liquid injection passage 25 into which the liquid injection pipe 51 can be inserted may be opened on the top end surface of the moving body 20, and the liquid injection port 21 may be opened on the side wall of the moving body 20 and communicated with the liquid injection passage 25, so that the liquid injection port 21 is aligned and communicated with the liquid inlet 11 opened inside the base 1 when the moving body 20 rotates to the second station. Further, the columnar structure may include a small-diameter section 202 and a large-diameter section 201 that are connected to each other, wherein the small-diameter section 202 is inserted into the base 1, a shoulder formed between the large-diameter section 201 and the small-diameter section 202 abuts against the base 1, the liquid injection port 21 is provided on an outer peripheral surface of the small-diameter section 202, and the liquid injection passage 25 is provided on a top end surface of the large-diameter section 201.

Referring to fig. 4, 5 and 7, the valve body 2 may further include a limiting ring 22 sleeved outside the moving body 20, the limiting ring 22 can elastically deform along a radial direction, and the limiting ring 22 is locked to the base 1 along a circumferential direction to prevent the limiting ring 22 from rotating with the moving body 20; referring to fig. 16, the anti-backup structure may include a pawl 222 disposed on an inner circumferential surface of the stopper ring 22 and a ratchet tooth disposed on an outer circumferential surface of the moving body 20, and the ratchet tooth may be formed with a first ratchet groove 241, a second ratchet groove 242, and a third ratchet groove 243 sequentially disposed on the outer circumferential surface of the moving body 20, wherein the pawl 222 is latched to the first ratchet groove 241 at the first position, the pawl 222 is latched to the second ratchet groove 242 when the moving body 20 rotates from the first position to the second position in the first direction as shown by an arrow in fig. 16, and the pawl 222 is latched to the third ratchet groove 243 when the moving body 20 rotates from the second position to the third position in the first direction. During the rotation of the moving body 20 in the first direction, the retainer ring 22 can be elastically deformed to facilitate the relative sliding between the pawls 222 and the respective ratchet grooves. In order to make the fitting between the moving body 20 and the retainer ring 22 smooth and reliable, the pawls may include two pawls 222 radially opposite on the inner circumferential surface of the retainer ring 22, and correspondingly, the ratchet teeth may include two first ratchet grooves 241 radially opposite, two second ratchet grooves 242 radially opposite, and two third ratchet grooves 243 radially opposite on the outer circumferential surface of the moving body 20. In addition, the limiting ring 22 may not be disposed between the base 1 and the moving body 20, but a pawl that can only move along the radial direction of the moving body 20 to approach or separate from the moving body 20 may be directly disposed on the base 1, and it should be noted here that, as long as the pawl can be locked to the base 1 along the circumferential direction, can move along the radial direction of the moving body 20, and can be locked to a corresponding ratchet groove on the moving body 20 at a corresponding station, the specific disposing manner of the pawl is not limited in the present disclosure.

In order to realize the relative fixation between the limiting ring 22 and the base 1 along the circumferential direction, as shown in fig. 4 and 5, a limiting portion 221 protruding downward is formed on the limiting ring 22, as shown in fig. 6 and 7, a limiting groove 13 for accommodating the limiting portion 221 is formed on the base 1, and the limiting portion 221 is placed in the limiting groove 13 to prevent the limiting ring 22 from rotating along with the moving body 20, so as to realize the circumferential limiting of the limiting ring 22.

In addition, in order to enable the moving body 20 to rotate in the base 1, the small-diameter section 202 of the moving body 20 is in clearance fit with the base 1, and in order to ensure that there is no fluid communication between the liquid injection port 21 and the liquid inlet 11 in the first and third stations, referring to fig. 3 to 5, a sealing rubber strip 23 may be provided on an outer circumferential surface of the small-diameter section 202 of the moving body 20, which is a portion inserted into the base 1, so as to seal a gap between the small-diameter section 202 and the base 1, thereby avoiding fluid communication between the liquid injection port 21 and the liquid inlet 11 in the first and third stations through the gap, and since the sealing rubber strip 23 can be elastically deformed, the sealing rubber strip 23 does not affect the rotation of the moving body 20 in the base 1 while providing sealing.

In order to avoid cheating by filling the sampling bottle with liquid in advance before sampling, the movable body 20 may further have a fourth station located between the first station and the second station, and when the movable body 20 rotates to the fourth station along the first direction, the liquid filling port 21 and the liquid inlet 11 start to be in fluid communication, that is, the fourth station is configured to: when the moving body 20 rotates from the first station in the first direction, and rotates to a position where the edge of the sealing rubber strip 23 on the side close to the liquid injection port 21 just crosses the edge of the liquid inlet 11, the liquid inlet 11 and the liquid injection port 21 can be in fluid communication through the gap between the small-diameter section 202 and the base 1; referring to fig. 16, the ratchet teeth may be further formed with a fourth ratchet groove 244 between the first ratchet groove 241 and the second ratchet groove 242, and a rotation angle of the first ratchet groove 241 and the fourth ratchet groove 244 in a circumferential direction is smaller than an angle by which the moving body 20 rotates from the first station to the fourth station. That is, if the cheating is caused by pouring the liquid into the sampling bottle before sampling, at least the moving body 20 needs to be rotated to the fourth position, when the cheating is over and the moving body 20 needs to be returned to the first position, the moving body 20 needs to be reversed in the second direction, and when the reversing is completed and the pawl 222 is stopped at the fourth ratchet groove 244, the moving body 20 cannot be rotated in the second direction, and thus cannot be returned to the first position. When the staff sampled, if the initial first station when discovering moving body 20 in the lid of certain sampling bottle when dispatching from the factory, just can realize that this sampling bottle has the risk of being cheated to can do useless processing to this sampling bottle, it is inaccurate to avoid using the testing result that the sampling of sampling bottle through cheating leads to.

In order to axially limit the moving body 20, referring to fig. 1 to 3, the valve body 2 may further include a gland 26 sleeved outside the moving body 20 and fixed on the base 1, the gland 26 presses the moving body 20 into the base 1 from the top, and a position of the gland 26 corresponding to the liquid injection channel 25 is provided with an opening 263 for avoiding the liquid injection channel 25, so that the liquid injection pipe 51 may be inserted into the liquid injection channel 25 through the opening 263. The pressing cover 26 can be bonded and fixed with the base 1.

In order to enable the movable body 20 to be driven to rotate by the pouring gun 5, as shown in fig. 9 and 11 to 15, the pouring gun 5 may have a drive projection 52 for projecting radially, as shown in fig. 3, the gland 26 may be formed with a vertically extending guide groove 261 for slidably engaging with the drive projection 52 to guide the pouring spout 51 to be inserted into the pouring channel 25; referring to fig. 4 to 6, a first driving sliding groove 271 and a second driving sliding groove 272 which are communicated with each other at bottom ends may be formed on an outer circumferential surface of the large-diameter section 201 of the moving body 20, the first driving sliding groove 271 extends obliquely from a top end surface of the large-diameter section 201 to the shaft shoulder along the second direction, and the second driving sliding groove 272 extends obliquely from a bottom end of the first driving sliding groove 271 to a top end surface of the large-diameter section 201 along the second direction; as shown in fig. 11 and 12, in the first station, the driving protrusion 52 is located at the top end of the guiding slot 261, the top end of the first driving sliding slot 271 is aligned with the top end of the guiding slot 261, and when the driving protrusion 52 slides downwards along the guiding slot 261, the driving protrusion moves along the first driving sliding slot 271 to drive the moving body 20 to rotate along the first direction to the second station, that is, the liquid injection gun 5 can simultaneously drive the moving body 20 to rotate from the first station to the second station during the process of inserting the cover body; referring to fig. 13, in the second station, the driving protrusion 52 is located at the bottom end of the guiding slot 261, and the bottom ends of the first driving sliding slot 271 and the second driving sliding slot 272 are aligned with the bottom end of the guiding slot 261, referring to fig. 14, when the driving protrusion 52 moves upwards along the guiding slot 261, the driving protrusion moves along the second driving sliding slot 272 to drive the moving body 20 to rotate to the third station along the first direction, referring to fig. 15, in the third station, the driving protrusion 52 is located at the top end of the guiding slot 261, and the top end of the second driving sliding slot 272 is aligned with the top end of the guiding slot 261, that is, after the injection gun 5 finishes injecting the sample bottle, the moving body 20 can be simultaneously driven to rotate from the second station to the third station during the process of pulling the injection gun 5 out of the cover body. Through the technical scheme, the rotation of the moving body 20 can be driven by the insertion and extraction of the liquid injection gun 5, and the sampling efficiency can be improved. In addition, if the sampling bottle is cheated before sampling and the moving body 20 of the cover body cannot return to the first station, then the top end of the first driving sliding groove 271 and the top end of the guide groove 261 are staggered, so that the liquid injection gun 5 cannot be inserted into the cover body and the sampling bottle cannot be used, and the cheating prevention performance of the sampling bottle is further improved.

Referring to fig. 5 and 6, the first and

second driving chutes

271 and 272 may be configured in a Y-shaped structure, and a vertical section of the Y-shaped structure may be biased toward the second driving chute 272.

In order to avoid the rotation of the moving body 20 during the filling process of the liquid filling gun 5, referring to fig. 3, 9 and 10, the liquid filling gun 5 may have a limiting hook 53, and a clamping groove 262 for matching with the limiting hook 53 may be formed on the outer circumferential surface of the pressing cover 26, so that when the liquid filling pipe 51 is inserted into the liquid filling channel 25 and the moving body 20 is located at the second station, the limiting hook 53 can be clamped in the clamping groove 262, so that the liquid filling gun 5 and the cover body are relatively fixed, and the moving body 20 is prevented from rotating due to the misoperation of the liquid filling gun 5 during the filling process.

Referring to FIGS. 9 and 10, the injection gun 5 may include a main body 50 and an injection tube 51 extending through the main body 50, and the injection tube 51 may be inserted into the injection passage 25 of the lid body to inject the liquid into the vial 4 through the injection port 21 of the lid body. Referring to fig. 10, the limit hook 53 may be rotatably connected to the main body 50 by a rotation shaft 54 to be engaged with the engaging groove 262 when rotating toward the inner side of the main body 50 and to be released from being engaged with the engaging groove 262 when rotating toward the outer side of the main body 50, and an elastic member 55 may be disposed between the limit hook 53 and the main body 50, and the elastic member 55 may be configured to provide elastic force for the limit hook 53 to rotate toward the inner side of the main body 50. In the process that the liquid injection gun 5 is inserted into the cover body and drives the moving body 20 to rotate from the first station to the second station, the limiting hook 53 slides on the outer peripheral surface of the pressing cover 26, when the moving body 20 rotates to the second station, the limiting hook 53 can clamp the clamping groove 262 under the action of the elastic piece 55, when the liquid injection of the liquid injection gun 5 is finished and needs to be pulled out, external force can be applied to the limiting hook 53, the limiting hook 53 is separated from the clamping groove 262 by overcoming the elastic force of the elastic piece 55, and therefore the liquid injection gun 5 can be pulled out of the cover body.

In order to avoid cheating caused by storing liquid in the liquid injection channel 25 in advance, referring to fig. 6 and 8, the base 1 can be further provided with a sewage drainage channel 14, the sewage drainage channel 14 extends from the inner part of the base 1 to the outer surface of the base 1 in an inclined and downward manner, and the sewage drainage channel 14 can be configured in such a way that when the moving body 20 is positioned at the first station, the liquid injection port 21 is communicated with the sewage drainage channel 14, so that the liquid entering the liquid injection channel 25 is discharged through the liquid injection port 21 and the sewage drainage channel 14, and the liquid for cheating is prevented from remaining in the liquid injection channel 25.

In order to avoid cheating through the liquid outlet 12 of the base 1, as shown in fig. 1 and 17, the sealing cover 3 may comprise a blocking cover 31 and a tamper-proof ring 32 connected to each other, and the sealing cover 3 may be configured such that when the blocking cover 31 is opened to allow the liquid outlet 12 to be in liquid communication with the outside, the tamper-proof ring 32 is separated from the blocking cover 31 and locked on the base 1. After a sample bottle has been sampled and transported back to the laboratory, if the laboratory worker finds that the anti-tamper ring 32 on a sample bottle is separated from the closure 31, he can recognize that the outlet 12 of the sample bottle was in fluid communication with the outside, i.e., that the sample bottle has the possibility of being tampered with through the outlet 12 before reaching the laboratory.

In addition, in order to facilitate the liquid injection into the bottle body 4, referring to fig. 1 and 17, at least one air hole 311 may be formed on the blocking cover 31, and a waterproof air-permeable membrane 33 may be disposed on the inner side of the blocking cover 31 corresponding to the air hole 311, so that the bottle body 4 can exhaust air through the waterproof air-permeable membrane 33 and the air hole 311, thereby facilitating the liquid sample to be injected into the bottle body 4 through the liquid inlet 11.

On above-mentioned technical scheme's basis, this disclosure still provides a liquid sampling bottle, refer to fig. 18 and show, this liquid sampling bottle can include bottle 4 and the lid among the above-mentioned technical scheme, and the lid can bond fixedly with bottle 4, has seted up the opening on the bottle 4, the opening and the inlet 11 and the 12 liquid intercommunication of liquid outlet of the base 1 of lid.

Through above-mentioned technical scheme, this liquid sampling bottle that this disclosure provided has the same technological effect with the lid among the above-mentioned technical scheme, avoids unnecessary repetition, does not describe here any more.

On above-mentioned technical scheme's basis, this disclosure still provides a liquid sampling device, including the liquid sampling bottle among the above-mentioned technical scheme and annotate liquid rifle 5, annotate liquid rifle 5 can annotate liquid in to bottle 4 through the lid.

Through above-mentioned technical scheme, this liquid sampling device that this disclosure provided has the same technological effect with the liquid sampling bottle among the above-mentioned technical scheme, avoids unnecessary repetition, does not describe here any more.

On the basis of the technical scheme, the present disclosure also provides a liquid injection gun, which is the liquid injection gun 5 in the liquid sampling device in the technical scheme.

Through above-mentioned technical scheme, the notes liquid rifle that this disclosure provided has the same technological effect with the liquid sampling device among the above-mentioned technical scheme, avoids unnecessary repetition, does not describe here any more.

The preferred embodiments of the present disclosure are described in detail above with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details in the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A lid for a liquid sampling bottle, comprising: a base (1) with a liquid inlet (11) and a liquid outlet (12), a valve body (2) which is arranged on the base (1) and can selectively open and close the liquid inlet (11), and a sealing cover (3) which is detachably arranged on the base (1) and can open and close the liquid outlet (12),

wherein, the valve body (2) comprises a moving body (20), a liquid injection port (21) which can be communicated with a liquid injection pipe (51) of a liquid injection gun (5) is arranged on the moving body (20), the moving body (20) can move along a first direction and is provided with a first station, a second station and a third station which are sequentially arranged along the first direction, wherein, the moving body (20) seals the liquid inlet (11) at the first station, the liquid injection port (21) is communicated with the liquid inlet (11) to open the liquid inlet (11) at the second station, the moving body (20) seals the liquid inlet (11),

and wherein the valve body (2) further comprises a backstop structure provided on the base (1) for stopping movement of the moving body (20) in a second direction opposite to the first direction at least at the first, second and third stations.

2. The cover according to claim 1, wherein the moving body (20) is configured as a column structure with a bottom end inserted into the base (1), the first direction is a clockwise or counterclockwise direction around a central axis of the column structure, a liquid injection passage (25) into which the liquid injection pipe (51) can be inserted is opened on a top end surface of the moving body (20), and the liquid injection port (21) is opened on the moving body (20) and is communicated with the liquid injection passage (25).

3. The cover according to claim 2, wherein the valve body (2) further comprises a limiting ring (22) which is sleeved outside the moving body (20) and can be elastically deformed along the radial direction, and the limiting ring (22) is locked to the base (1) along the circumferential direction;

the retaining structure comprises a pawl (222) arranged on the inner peripheral surface of the limiting ring (22) and a ratchet arranged on the outer peripheral surface of the moving body (20), wherein the ratchet is provided with a first ratchet groove (241), a second ratchet groove (242) and a third ratchet groove (243) which are sequentially arranged on the outer peripheral surface of the moving body (20), the pawl (222) is clamped in the first ratchet groove (241) when the moving body (20) rotates from the first station to the second station along the first direction, the pawl (222) is clamped in the second ratchet groove (242) when the moving body (20) rotates from the second station to the third station along the first direction, and the pawl (222) is clamped in the third ratchet groove (243).

4. The cover according to claim 3, wherein the mobile body (20) further has a fourth station located between the first station and the second station, and when the mobile body (20) rotates in the first direction to the fourth station, the liquid injection port (21) and the liquid inlet (11) start to be in fluid communication;

the ratchet is further formed with a fourth ratchet groove (244) between the first ratchet groove (241) and the second ratchet groove (242), and a rotation angle of the first ratchet groove (241) and the fourth ratchet groove (244) in a circumferential direction is smaller than an angle by which the moving body (20) is rotated from the first station to the fourth station.

5. The cover body according to claim 3, wherein a downward convex limiting portion (221) is formed on the limiting ring (22), and a limiting groove (13) for accommodating the limiting portion (221) is formed on the base (1) to circumferentially limit the limiting ring (22).

6. The cover according to claim 2, characterized in that a sealing rubber strip (23) is provided on an outer circumferential surface of a portion of the moving body (20) inserted into the base (1).

7. The cover according to any one of claims 2 to 6, wherein the valve body (2) further comprises a pressing cover (26) fitted over the exterior of the moving body (20) and fixed to the base (1), the pressing cover (26) pressing the moving body (20) into the base (1) from the top, and an opening (263) into which the liquid filling pipe (51) can be inserted is provided in a position of the pressing cover (26) corresponding to the liquid filling channel (25).

8. The cover body according to claim 7, wherein the pouring gun (5) is provided with a driving lug (52) for radial projection, and a vertically extending guide groove (261) is formed on the pressing cover (26), the guide groove (261) being used for sliding fit with the driving lug (52) to guide the pouring pipe (51) to be inserted into the pouring channel (25);

a first driving sliding groove (271) and a second driving sliding groove (272) which are communicated at the bottom ends are formed in the outer peripheral surface of the moving body (20), the first driving sliding groove (271) extends obliquely from the top end surface to the bottom end surface of the moving body (20) along the second direction, and the second driving sliding groove (272) extends obliquely from the bottom end of the first driving sliding groove (271) to the top end surface of the moving body (20) along the second direction;

wherein, in the first station, the driving lug (52) is positioned at the top end of the guide groove (261), the top end of the first driving sliding groove (271) is aligned with the top end of the guide groove (261), and when the driving lug (52) moves downwards along the guide groove (261), the driving lug moves along the first driving sliding groove (271) to drive the moving body (20) to rotate to the second station along the first direction;

in the second station, the driving lug (52) is positioned at the bottom end of the guide groove (261), the bottom ends of the first driving chute (271) and the second driving chute (272) are aligned with the bottom end of the guide groove (261), and when the driving lug (52) moves along the guide groove (261) upwards, the driving lug moves along the second driving chute (272) to drive the moving body (20) to rotate to the third station along the first direction;

in the third station, the driving lug (52) is positioned at the top end of the guide groove (261), and the top end of the second driving sliding groove (272) is aligned with the top end of the guide groove (261).

9. The cover according to claim 8, characterized in that the first and second drive chutes (271, 272) are formed as a Y-shaped structure, the vertical section of the Y-shaped structure being biased towards the second drive chute (272).

10. The cover body according to claim 7, wherein the injection gun (5) has a limit hook (53), and a locking groove (262) for engaging with the limit hook (53) is formed on the outer peripheral surface of the pressing cover (26) so that the limit hook (53) can be locked in the locking groove (262) when the injection tube (51) is inserted into the injection passage (25) and the movable body (20) is located at the second station.

11. The cover body of claim 10, wherein the liquid injection gun (5) comprises a main body (50) and a liquid injection pipe (51) penetrating through the main body (50), the limit hook (53) is rotatably connected with the main body (50) through a rotating shaft (54) so as to be clamped into the clamping groove (262) when rotating towards the inner side of the main body (50) and be released from clamping when rotating towards the outer side of the main body (50), an elastic element (55) is arranged between the limit hook (53) and the main body (50), and the elastic element (55) is configured to provide elastic force for the limit hook (53) to rotate towards the inner side of the main body (50).

12. The cover body according to claim 1, wherein the base (1) is further provided with a sewage draining channel (14), the sewage draining channel (14) extends from the inner part of the base (1) to the outer surface of the base (1) obliquely and downwards, and the sewage draining channel (14) is configured as follows: when the moving body (20) is positioned at the first station, the liquid injection port (21) is communicated with the drainage channel (14) so as to discharge the liquid entering the liquid injection port (21) through the drainage channel (14).

13. Cover according to claim 1, characterized in that the sealing cover (3) comprises a blanking cover (31) and an anti-theft ring (32) connected to each other, the sealing cover (3) being configured to: when the closure (31) is opened to place the liquid outlet (12) in fluid communication with the exterior, the anti-theft ring (32) disengages from the closure (31) and locks onto the base (1).

14. The cover body according to claim 13, wherein the blocking cover (31) is provided with a ventilation hole (311), and a waterproof and breathable film (33) is arranged on the inner side of the blocking cover (31) corresponding to the ventilation hole (311).

15. A liquid sampling bottle, comprising a bottle body (4) and a cover body as claimed in any one of claims 1 to 14, wherein the bottle body (4) is provided with an opening, and the opening is communicated with the liquid inlet (11) and the liquid outlet (12).

16. A liquid sampling device, comprising the liquid sampling bottle of claim 15 and an injection gun (5), wherein the injection gun (5) is capable of injecting liquid into the bottle body (4) through the cap body.

17. A priming gun, characterized in that it is the priming gun (5) in the liquid sampling device according to claim 16.