Cleaning device

Abstract

The utility model provides a cleaning device, the cleaning device is used for cleaning a mercury intrusion instrument dilatometer, the mercury intrusion instrument dilatometer comprises a sample tube, the sample tube is provided with a tube narrow mouth end and a tube open mouth end which are oppositely arranged, and the cleaning device comprises a first fixing assembly, a narrow mouth cleaning nozzle and an open mouth cleaning nozzle. A spraying opening of the narrow-opening cleaning spray head faces the first fixing assembly; the open cleaning nozzle and the narrow cleaning nozzle are oppositely arranged on the two sides of the first fixing assembly. A nozzle of the open cleaning nozzle faces the first fixing assembly; the caliber of the nozzle of the narrow-mouth cleaning nozzle is d1, the caliber of the narrow-mouth end of the pipe is d2, and d1 is larger than 0 and smaller than d2. A narrow-opening cleaning spray head is arranged to spray cleaning liquid to the narrow-opening end of the pipe fixed to the first fixing assembly; the open cleaning nozzle is arranged to spray the cleaning liquid to the open end of the pipe fixed on the first fixing assembly, so that the problem that the mercury injection instrument dilatometer is inconvenient to clean in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, and more particularly, to a cleaning device. Background Art

[0002] In the prior art, after the high-pressure test of a mercury intrusion porosimeter is completed, a small amount of sample, a large amount of mercury, and a small amount of hydraulic oil remain in the sample tube. Currently, after the high-pressure test of the dilatometer (sample tube assembly) of the mercury intrusion porosimeter is completed, since there is no automatic cleaning device to clean the sample tube assembly, manual cleaning is required; when the sample tube assembly is unscrewed, a large amount of mercury flows out of the sample tube and is poured into an open container containing water. Then, a washing bottle containing ethanol is used to flush the hydraulic oil and mercury in the thin tube at one end of the sample tube downward, and the inner part of the tube containing the sample at the other end is washed with ethanol. Finally, the sample tube connector removed is rinsed and wiped clean with a solution containing ethanol.

[0003] However, during this operation, it is easy to wash the sample containing mercury and mercury beads onto the hands or spill them onto the laboratory bench. Although this experiment is carried out in a fume hood, since the fume hood is not a closed environment, mercury vapor is easily volatilized and pollutes the environment; in addition, the washed mercury and sample need to be further transferred to a brown bottle and sealed with water. The above operations are relatively troublesome, and mercury is a highly toxic substance, which will cause certain harm to the environment and personnel. Summary of the Utility Model

[0004] The main object of the present utility model is to provide a cleaning device to solve the problem that the dilatometer of the mercury intrusion porosimeter in the prior art is not convenient to clean.

[0005] To achieve the above object, the present utility model provides a cleaning device for cleaning a dilatometer of a mercury intrusion porosimeter. The dilatometer of the mercury intrusion porosimeter includes a sample tube, and the sample tube has a relatively arranged narrow tube mouth end and an open tube mouth end. The cleaning device includes: a first fixing component for fixing the sample tube; a narrow mouth cleaning nozzle, the nozzle of the narrow mouth cleaning nozzle is arranged towards the first fixing component to spray a cleaning liquid towards the narrow tube mouth end fixed on the first fixing component; an open mouth cleaning nozzle, which is arranged on both sides of the first fixing component opposite to the narrow mouth cleaning nozzle; the nozzle of the open mouth cleaning nozzle is arranged towards the first fixing component to spray a cleaning liquid towards the open tube mouth end fixed on the first fixing component; wherein, the diameter of the nozzle of the narrow mouth cleaning nozzle is d1, and the diameter of the narrow tube mouth end is d2, and 0 < d1 < d2.

[0006] Further, the first fixing component includes: a first jaw movably arranged along the arrangement direction of the narrow-mouth cleaning nozzle and the open-mouth cleaning nozzle; the first jaw has a movably arranged jaw part for clamping the narrow-mouth end of the tube; a second jaw arranged on the side of the first jaw away from the narrow-mouth cleaning nozzle; the second jaw is movably arranged along the arrangement direction of the narrow-mouth cleaning nozzle and the open-mouth cleaning nozzle; the second jaw has a movably arranged jaw part for clamping the open-mouth end of the tube.

[0007] Further, the narrow-mouth cleaning nozzle and the open-mouth cleaning nozzle are arranged at intervals in the vertical direction, where: the narrow-mouth cleaning nozzle is arranged above the open-mouth cleaning nozzle, and the nozzle of the open-mouth cleaning nozzle sprays the cleaning liquid upward; or the narrow-mouth cleaning nozzle is arranged below the open-mouth cleaning nozzle, and the nozzle of the narrow-mouth cleaning nozzle sprays the cleaning liquid upward.

[0008] Further, the mercury intrusion dilatometer further includes a sample tube connecting piece, and the cleaning device further includes: a second fixing component arranged at an interval from the first fixing component; the second fixing component has a movably arranged jaw part for fixing the sample tube connecting piece; a connecting piece cleaning nozzle, the nozzle of the connecting piece cleaning nozzle is arranged towards the second fixing component to spray the cleaning liquid on the sample tube connecting piece fixed thereon; wherein, the second fixing component is movably arranged towards the direction close to or away from the connecting piece cleaning nozzle.

[0009] Further, the cleaning device further includes: a plurality of outer wall cleaning nozzles arranged at intervals along the arrangement direction of the first fixing component and the second fixing component to spray the cleaning liquid on the sample tube fixed on the first fixing component and / or the sample tube connecting piece fixed on the second fixing component.

[0010] Further, the cleaning device further includes: a waste liquid treatment structure arranged below the narrow-mouth cleaning nozzle and the open-mouth cleaning nozzle to collect the cleaning liquid and the waste liquid carried away by the cleaning liquid.

[0011] Further, the waste liquid treatment structure includes: a liquid storage component having a liquid storage space for collecting the cleaning liquid and the waste liquid carried away by the cleaning liquid; a diversion component having a diversion outlet, and the diversion outlet is docked with the inlet of the liquid storage component to divert the cleaning liquid and the waste liquid carried away by the cleaning liquid.

[0012] Further, the diversion component is a diversion groove, and the diversion outlet is arranged on the bottom plate of the diversion groove; or the diversion component is an inclined diversion plate, and the end of the inclined diversion plate away from the diversion outlet is higher than the end close to the diversion outlet.

[0013] Further, the cleaning device further includes: a mounting bracket, on which the first fixing component and the second fixing component of the cleaning device are both movably arranged; a mounting base, mounted on the mounting bracket; the first fixing component and the second fixing component are both arranged above the mounting base; the diversion component of the cleaning device is arranged on the mounting base, and the liquid storage component of the cleaning device is arranged below the mounting base.

[0014] Further, the cleaning device further includes: a protective cover, covering the mounting bracket, the protective cover having a protective space, and the first fixing component and the second fixing component are both arranged in the protective space; an operation handle, arranged on the protective cover; wherein, the protective cover is detachably or openable / closable or push-pullably arranged on the mounting bracket.

[0015] Applying the technical solution of the present utility model, the present utility model provides a cleaning device for cleaning a mercury intrusion dilatometer. The mercury intrusion dilatometer includes a sample tube, and the sample tube has a relatively arranged tube narrow mouth end and a tube open mouth end. The cleaning device includes a first fixing component, a narrow mouth cleaning nozzle and an open mouth cleaning nozzle. Among them, the nozzle of the narrow mouth cleaning nozzle is arranged towards the first fixing component; the open mouth cleaning nozzle is arranged on both sides of the first fixing component opposite to the narrow mouth cleaning nozzle; the nozzle of the open mouth cleaning nozzle is arranged towards the first fixing component; the diameter of the nozzle of the narrow mouth cleaning nozzle is d1, and the diameter of the tube narrow mouth end is d2, and 0 < d1 < d2. By setting the first fixing component to fix the sample tube; by setting the narrow mouth cleaning nozzle to spray the cleaning liquid towards the tube narrow mouth end fixed on the first fixing component; by setting the open mouth cleaning nozzle to spray the cleaning liquid towards the tube open mouth end fixed on the first fixing component; by setting the diameter of the nozzle of the narrow mouth cleaning nozzle to be smaller than the diameter of the tube narrow mouth end, so that the cleaning liquid sprayed out from the narrow mouth cleaning nozzle is sprayed into the sample tube at a high pressure and high flow rate, thereby flushing out the residual waste liquid in the sample tube from the sample tube, so as to achieve a better cleaning effect on the sample tube, and avoid the occurrence of too much residual waste liquid being inconvenient to clean due to the too small diameter of the tube narrow mouth end of the sample tube, and further solve the problem that the mercury intrusion dilatometer in the prior art is inconvenient to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 shows a first perspective structural schematic diagram of an embodiment of the cleaning device according to the present utility model;

[0018] Figure 2 shows a second perspective structural schematic diagram of an embodiment of the cleaning device according to the present utility model;

[0019] Figure 3 The figure shows a first - perspective structural schematic diagram of the protective cover of the cleaning device according to the present utility model covering the mounting bracket;

[0020] Figure 4 The figure shows a second - perspective structural schematic diagram of the protective cover of the cleaning device according to the present utility model covering the mounting bracket.

[0021] Among them, the above - mentioned drawings include the following reference numerals:

[0022] 1. Sample tube; 11. Narrow - mouth end of the tube; 12. Open - mouth end of the tube; 13. Sample - tube connecting piece; 2. First fixing assembly; 21. First jaw; 22. Second jaw; 31. Narrow - mouth cleaning spray head; 32. Open - mouth cleaning spray head; 33. Connecting - piece cleaning spray head; 34. Outer - wall cleaning spray head; 4. Second fixing assembly; 5. Waste - liquid treatment structure; 51. Liquid - storage component; 52. Diversion component; 53. Diversion outlet; 61. Mounting bracket; 611. Support base; 612. Mounting rod; 613. Mounting plate; 62. Mounting base; 7. Protective cover; 71. Operating handle. Detailed implementation manners

[0023] It should be noted that, without conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0024] Please refer to Figures 1 to 4 , the present utility model provides a cleaning device for cleaning a mercury porosimeter dilatometer. The mercury porosimeter dilatometer includes a sample tube 1. The sample tube 1 has a relatively - arranged narrow - mouth end 11 and open - mouth end 12 of the tube. The cleaning device includes a first fixing assembly 2, a narrow - mouth cleaning spray head 31 and an open - mouth cleaning spray head 32. The first fixing assembly 2 is used to fix the sample tube 1; the spray opening of the narrow - mouth cleaning spray head 31 is arranged towards the first fixing assembly 2 to spray cleaning liquid on the narrow - mouth end 11 of the tube fixed thereon; the open - mouth cleaning spray head 32 is arranged on both sides of the first fixing assembly 2 opposite to the narrow - mouth cleaning spray head 31; the spray opening of the open - mouth cleaning spray head 32 is arranged towards the first fixing assembly 2 to spray cleaning liquid on the open - mouth end 12 of the tube fixed thereon; wherein, the diameter of the spray opening of the narrow - mouth cleaning spray head 31 is d1, and the diameter of the narrow - mouth end 11 of the tube is d2, and 0 < d1 < d2.

[0025] The utility model provides a cleaning device, which is used to clean the dilatometer of a mercury intrusion porosimeter. The dilatometer of the mercury intrusion porosimeter includes a sample tube 1. The cleaning device includes a first fixing component 2, a narrow-mouth cleaning nozzle 31 and an open-mouth cleaning nozzle 32. The first fixing component 2 is provided for fixing the sample tube 1; the narrow-mouth cleaning nozzle 31 is provided to spray cleaning liquid towards the narrow end 11 of the tube fixed on the first fixing component 2; the open-mouth cleaning nozzle 32 is provided to spray cleaning liquid towards the open end 12 of the tube fixed on the first fixing component 2; by setting the diameter of the nozzle of the narrow-mouth cleaning nozzle 31 to be smaller than the diameter of the narrow end 11 of the tube, the cleaning liquid sprayed out from the narrow-mouth cleaning nozzle 31 is sprayed into the sample tube 1 with high pressure and high flow rate, so as to wash out the residual waste liquid in the sample tube 1 from the sample tube 1, so as to achieve a better cleaning effect on the sample tube 1, and avoid the occurrence of too much residual waste liquid being inconvenient to clean due to the too small diameter of the narrow end 11 of the sample tube 1, thereby solving the problem that the dilatometer of the mercury intrusion porosimeter in the prior art is inconvenient to clean.

[0026] Specifically, as Figure 1 shown, in order to facilitate fixing the sample tube 1 on the first fixing component 2, the first fixing component 2 includes a first clamping jaw 21 and a second clamping jaw 22. The first clamping jaw 21 is movably arranged along the arrangement direction of the narrow-mouth cleaning nozzle 31 and the open-mouth cleaning nozzle 32; the first clamping jaw 21 has a movably arranged clamping part for clamping the narrow end 11 of the tube; the second clamping jaw 22 is arranged on the side of the first clamping jaw 21 away from the narrow-mouth cleaning nozzle 31; the second clamping jaw 22 is movably arranged along the setting direction of the narrow-mouth cleaning nozzle 31 and the open-mouth cleaning nozzle 32; the second clamping jaw 22 has a movably arranged clamping part for clamping the open end 12 of the tube, so as to fix the sample tube 1 on the first fixing component 2 through the two clamping jaws, and prevent the sample tube 1 from moving relative to the first fixing component 2 under the impact of the cleaning liquid during the cleaning of the sample tube 1; and by arranging the clamping part, it is convenient to fix or remove the sample tube 1; by movably arranging the first clamping jaw 21 and the second clamping jaw 22, it is convenient to adjust the distance between the first clamping jaw 21 and the second clamping jaw 22, so as to be applicable to sample tubes 1 of different models and lengths.

[0027] Further, in order to make it convenient for the cleaning liquid to carry the waste liquid away from the sample tube 1 under the action of gravity, the narrow-mouth cleaning nozzle 31 and the open-mouth cleaning nozzle 32 are arranged at intervals in the vertical direction. Among them, the specific setting method of the narrow-mouth cleaning nozzle 31 is:

[0028] One specific setting method is: as Figure 1 shown, the narrow-mouth cleaning nozzle 31 is arranged above the open-mouth cleaning nozzle 32, and the nozzle of the open-mouth cleaning nozzle 32 sprays the cleaning liquid upwards. Such a setting method makes the cleaning effect of the cleaning liquid sprayed out from the narrow-mouth cleaning nozzle 31 on the narrow end of the tube better under the action of gravity.

[0029] Optionally, the narrow - orifice cleaning nozzle 31 is a needle - type nozzle; the wide - orifice cleaning nozzle 32 is a fountain - type nozzle.

[0030] Another specific setting method is: the narrow - orifice cleaning nozzle 31 is arranged below the wide - orifice cleaning nozzle 32, and the nozzle of the narrow - orifice cleaning nozzle 31 sprays the cleaning liquid upward.

[0031] Specifically, the mercury intrusion dilatometer further includes a sample tube connector 13. In order to clean the sample tube connector 13, the cleaning device further includes a second fixing component 4 and a connector cleaning nozzle 33. The second fixing component 4 is arranged at an interval from the first fixing component 2; the second fixing component 4 has a jaw part that can be movably arranged for fixing the sample tube connector 13; the nozzle of the connector cleaning nozzle 33 is arranged facing the second fixing component 4 to spray the cleaning liquid onto the sample tube connector 13 fixed thereon; wherein, the second fixing component 4 is movably arranged in a direction approaching or departing from the connector cleaning nozzle 33.

[0032] Furthermore, in order to clean the outer walls of the sample tube 1 and the sample tube connector 13, the cleaning device further includes a plurality of outer - wall cleaning nozzles 34. The plurality of outer - wall cleaning nozzles 34 are arranged at intervals along the setting direction of the first fixing component 2 and the second fixing component 4 to spray the cleaning liquid onto the sample tube 1 fixed on the first fixing component 2 and / or the sample tube connector 13 fixed on the second fixing component 4.

[0033] In addition, in order to facilitate the collection and treatment of the cleaning liquid and waste liquid after cleaning, the cleaning device further includes a waste - liquid treatment structure 5. The waste - liquid treatment structure 5 is arranged below the narrow - orifice cleaning nozzle 31 and the wide - orifice cleaning nozzle 32 to collect the cleaning liquid and the waste liquid carried away by the cleaning liquid.

[0034] Furthermore, in order to facilitate the collection of the cleaning liquid and waste liquid, the waste - liquid treatment structure 5 includes a liquid - storage component 51 and a diversion component 52. The liquid - storage component 51 has a liquid - storage space for collecting the cleaning liquid and the waste liquid carried away by the cleaning liquid; the diversion component 52 has a diversion outlet 53, and the diversion outlet 53 is docked with the inlet of the liquid - storage component 51 to divert the cleaning liquid and the waste liquid carried away by the cleaning liquid.

[0035] Generally, the liquid - storage component 51 is a brown waste - liquid collection bottle.

[0036] Optionally, the specific structure of the diversion component 52 in the embodiments of the present application is:

[0037] The first specific structure is: as Figure 2 shown, the diversion component 52 is a diversion groove, and the diversion outlet 53 is arranged on the bottom plate of the diversion groove.

[0038] The second specific structure is as follows: the diversion component 52 is an inclined diversion plate, and one end of the inclined diversion plate away from the diversion outlet 53 is higher than the end close to the diversion outlet 53.

[0039] In addition, to facilitate the installation of the first fixing component 2 and the second fixing component 4, the cleaning device further includes a mounting bracket 61 and a mounting base 62. The first fixing component 2 and the second fixing component 4 of the cleaning device can both be movably arranged on the mounting bracket 61; the mounting base 62 is mounted on the mounting bracket 61; the first fixing component 2 and the second fixing component 4 are both arranged above the mounting base 62; the diversion component 52 of the cleaning device is arranged on the mounting base 62, and the liquid storage component 51 of the cleaning device is arranged below the mounting base 62.

[0040] Furthermore, the mounting bracket 61 includes a support base 611, a mounting rod 612 and a mounting plate 613. The support base 611 is used to be arranged on the support base surface; the mounting base 62 is mounted on the support base 611; the mounting rod 612 is vertically mounted on the mounting base 62; the mounting plate 613 is mounted on the end of the mounting rod 612 away from the mounting base 62.

[0041] Among them, there are two mounting rods 612, and the first fixing component 2 and the second fixing component 4 are respectively mounted on the two mounting rods 612; both ends of the mounting plate 613 are connected to the two mounting rods 612, and the narrow - mouth cleaning nozzle 31, the connector cleaning nozzle 33 and the outer - wall cleaning nozzle 34 are all arranged on the mounting plate 613.

[0042] Specifically, in order to prevent waste liquid and cleaning liquid from spilling into the environment during the cleaning process, the cleaning device further includes a protective cover 7 and an operation handle 71. The protective cover 7 covers the mounting bracket 61, and the protective cover 7 has a protection space. The first fixing component 2 and the second fixing component 4 are both arranged in the protection space; the operation handle 71 is arranged on the protective cover 7 to facilitate opening or closing the protective cover 7; among them, the protective cover 7 is detachably or openably or push - pullably arranged on the mounting bracket 61.

[0043] As Figure 3 and Figure 4 shown, the bottom end of the protective cover 7 in the embodiment of the present application is fixedly connected to the mounting bracket 61. The protective cover 7 is an upward - turning protective cover, and a hinge is arranged on the side of the protective cover 7 away from the operation handle 71 to facilitate opening or closing the protective cover 7.

[0044] Generally, the specific dimensions of the cleaning device in the embodiment of the present application are: 35 cm in length, 16 cm in width, and 50 cm in height, occupying a small space, so as to be convenient for placement and use in the laboratory.

[0045] The cleaning device in the embodiments of the present application further includes a plurality of start buttons, which are respectively electrically connected to the narrow - mouth cleaning nozzle 31, the open - mouth cleaning nozzle 32, the connector cleaning nozzle 33, and the outer - wall cleaning nozzle 34, so as to control the start or stop of the narrow - mouth cleaning nozzle 31, the open - mouth cleaning nozzle 32, the connector cleaning nozzle 33, and the outer - wall cleaning nozzle 34 by pressing the start buttons.

[0046] Optionally, the cleaning liquid in the embodiments of the present application is an ethanol solution.

[0047] The specific implementation manner of the cleaning device in the embodiments of the present application is as follows:

[0048] S1: After the high - pressure test is completed, dry the residual oil liquid on the outer wall of the dilatometer of the mercury porosimeter and unscrew it. Open the sample tube 1 and the sample tube connector 13. Pour the mercury and the sample in the sample tube 1 into the diversion component 52. Then fix the sample tube 1 and the sample tube connector 13 on the first fixing component 2 and the second fixing component 4 respectively;

[0049] S3: Press the start button. First, control the start of the narrow - mouth cleaning nozzle 31, the open - mouth cleaning nozzle 32, and the connector cleaning nozzle 33 to spray the ethanol cleaning liquid onto the sample tube 1 and the sample tube connector 13 until the inner wall of the sample tube 1 is clean and there is no mercury bead and powder residue on the upper part of the sample tube connector 13. Press the start button again to stop the cleaning;

[0050] S5: Press the start button to control the start of the outer - wall cleaning nozzle 34 to spray the cleaning liquid onto the outer wall of the sample tube 1, the outer wall of the sample tube connector 13, and the bottom wall of the diversion component 52, so as to wash the mercury beads thereon to the diversion outlet 53 and finally collect them into the liquid storage component 51 through the diversion outlet 53; Then manually control the start button to stop the flushing according to the flushing situation. This operation can not only clean the inside of the whole device, but also achieve the purpose of mercury water - sealing;

[0051] S7: Plug the inlet of the liquid storage component 51 with a plug. After the sample tube 1 is dried, remove it and put it into the box for placing the sample tube 1;

[0052] S9: When there is more waste liquid collected in the liquid storage component 51, it needs to be transferred to a special mercury - treatment department for treatment.

[0053] From the above description, it can be seen that the above - mentioned embodiments of the present utility model achieve the following technical effects:

[0054] The utility model provides a cleaning device, which is used for cleaning a mercury intrusion dilatometer. The mercury intrusion dilatometer includes a sample tube 1, and the sample tube 1 has a relatively arranged tube narrow-mouth end 11 and a tube open-mouth end 12. The cleaning device includes a first fixing component 2, a narrow-mouth cleaning spray head 31 and an open-mouth cleaning spray head 32. Among them, the spray orifice of the narrow-mouth cleaning spray head 31 is arranged towards the first fixing component 2; the open-mouth cleaning spray head 32 is arranged on both sides of the first fixing component 2 opposite to the narrow-mouth cleaning spray head 31; the spray orifice of the open-mouth cleaning spray head 32 is arranged towards the first fixing component 2; the diameter of the spray orifice of the narrow-mouth cleaning spray head 31 is d1, and the diameter of the tube narrow-mouth end 11 is d2, and 0 < d1 < d2. By providing the first fixing component 2 for fixing the sample tube 1; by providing the narrow-mouth cleaning spray head 31 to spray a cleaning liquid towards the tube narrow-mouth end 11 fixed on the first fixing component 2; by providing the open-mouth cleaning spray head 32 to spray a cleaning liquid towards the tube open-mouth end 12 fixed on the first fixing component 2; by setting the diameter of the spray orifice of the narrow-mouth cleaning spray head 31 to be smaller than the diameter of the tube narrow-mouth end 11, so that the cleaning liquid sprayed out by the narrow-mouth cleaning spray head 31 is sprayed into the sample tube 1 at a high pressure and high flow rate, thereby flushing out the residual waste liquid in the sample tube 1, so as to make the cleaning effect of the sample tube 1 better, and avoid the occurrence of excessive residual waste liquid being inconvenient to clean due to the too small diameter of the tube narrow-mouth end 11 of the sample tube 1, and further solve the problem that the mercury intrusion dilatometer in the prior art is not easy to clean.

[0055] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A cleaning device for cleaning a mercury intrusion porosimeter dilatometer, the mercury intrusion porosimeter dilatometer comprising a sample tube (1), the sample tube (1) having a relatively arranged tube narrow mouth end (11) and a tube open mouth end (12), characterized in that, The cleaning device includes: A first fixing component (2) for fixing the sample tube (1); A narrow - mouth cleaning spray head (31), the spray orifice of the narrow - mouth cleaning spray head (31) is arranged towards the first fixing component (2) to spray cleaning liquid towards the narrow - mouth end (11) of the tube fixed on the first fixing component (2); An open - mouth cleaning spray head (32), which is arranged on both sides of the first fixing component (2) opposite to the narrow - mouth cleaning spray head (31); the spray orifice of the open - mouth cleaning spray head (32) is arranged towards the first fixing component (2) to spray cleaning liquid towards the open - mouth end (12) of the tube fixed on the first fixing component (2); Wherein, the diameter of the spray orifice of the narrow - mouth cleaning spray head (31) is d1, and the diameter of the narrow - mouth end (11) of the tube is d2, 0 < d1 < d2.

2. The cleaning device according to claim 1, wherein The first fixing component (2) includes: A first clamping jaw (21), which is movably arranged along the arrangement direction of the narrow - mouth cleaning spray head (31) and the open - mouth cleaning spray head (32); the first clamping jaw (21) has a movably arranged clamping part for clamping the narrow - mouth end (11) of the tube; A second clamping jaw (22), which is arranged on the side of the first clamping jaw (21) away from the narrow - mouth cleaning spray head (31); the second clamping jaw (22) is movably arranged along the setting direction of the narrow - mouth cleaning spray head (31) and the open - mouth cleaning spray head (32); the second clamping jaw (22) has a movably arranged clamping part for clamping the open - mouth end (12) of the tube.

3. The cleaning device according to claim 2, characterized in that, The narrow - mouth cleaning spray head (31) and the open - mouth cleaning spray head (32) are arranged at intervals in the vertical direction, where: The narrow - mouth cleaning spray head (31) is arranged above the open - mouth cleaning spray head (32), and the spray orifice of the open - mouth cleaning spray head (32) sprays cleaning liquid upwards; or The narrow - mouth cleaning spray head (31) is arranged below the open - mouth cleaning spray head (32), and the spray orifice of the narrow - mouth cleaning spray head (31) sprays cleaning liquid upwards.

4. The cleaning device according to claim 1, wherein, The mercury intrusion dilatometer further includes a sample tube connecting piece (13), and the cleaning device further includes: A second fixing component (4), which is arranged at an interval from the first fixing component (2); the second fixing component (4) has a movably arranged clamping part for fixing the sample tube connecting piece (13); A connecting - piece cleaning spray head (33), the spray orifice of the connecting - piece cleaning spray head (33) is arranged towards the second fixing component (4) to spray cleaning liquid towards the sample tube connecting piece (13) fixed thereon; Wherein, the second fixing component (4) is movably arranged towards the direction of approaching or moving away from the connecting - piece cleaning spray head (33).

5. The cleaning device according to claim 4, wherein, The cleaning device further includes: A plurality of outer - wall cleaning spray heads (34), which are arranged at intervals along the setting direction of the first fixing component (2) and the second fixing component (4) to spray cleaning liquid towards the sample tube (1) fixed on the first fixing component (2) and / or the sample tube connecting piece (13) fixed on the second fixing component (4).

6. The cleaning device according to claim 1, characterized in that, The cleaning device further includes: The waste liquid treatment structure (5) is arranged below the narrow-mouth cleaning nozzle (31) and the open-mouth cleaning nozzle (32) to collect the cleaning liquid and the waste liquid carried away by the cleaning liquid.

7. The cleaning device according to claim 6, characterized in that, The waste liquid treatment structure (5) includes: A liquid storage component (51) having a liquid storage space for collecting the cleaning liquid and the waste liquid carried away by the cleaning liquid; A diversion component (52) having a diversion outlet (53), and the diversion outlet (53) is docked with the inlet of the liquid storage component (51) to divert the cleaning liquid and the waste liquid carried away by the cleaning liquid.

8. The cleaning device according to claim 7, wherein The diversion component (52) is a diversion groove, and the diversion outlet (53) is arranged on the bottom plate of the diversion groove; or The diversion component (52) is an inclined diversion plate, and one end of the inclined diversion plate away from the diversion outlet (53) is higher than the end close to the diversion outlet (53).

9. The cleaning device according to claim 1, characterized in that, The cleaning device further includes: A mounting bracket (61), and the first fixing assembly (2) and the second fixing assembly (4) of the cleaning device are both movably arranged on the mounting bracket (61); A mounting base (62) is mounted on the mounting bracket (61); the first fixing assembly (2) and the second fixing assembly (4) are both arranged above the mounting base (62); the diversion component (52) of the cleaning device is arranged on the mounting base (62), and the liquid storage component (51) of the cleaning device is arranged below the mounting base (62).

10. The cleaning device according to claim 9, wherein, The cleaning device further includes: A protective cover (7) is sleeved on the mounting bracket (61), the protective cover (7) has a protective space, and the first fixing assembly (2) and the second fixing assembly (4) are both arranged in the protective space; An operation handle (71) is arranged on the protective cover (7); Wherein, the protective cover (7) is detachably or openably or push-pullably arranged on the mounting bracket (61).

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