CN115027834A

CN115027834A - Liquid container for manufacturing equivalent standard weights

Info

Publication number: CN115027834A
Application number: CN202210718828.5A
Authority: CN
Inventors: 王建国; 张学成; 王继船; 窦广义
Original assignee: Jinan Xinguang Testing Machine Co ltd
Current assignee: Jinan Xinguang Testing Machine Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-09-09
Anticipated expiration: 2042-06-23
Also published as: CN115027834B

Abstract

The application discloses a liquid container for manufacturing equivalent standard weights, and belongs to the technical field of weighing apparatus verification. The liquid container includes: a top plate and a bottom plate; the two ends of the sleeve are respectively connected with the top plate and the bottom plate, the sleeve can be folded, a loading cavity is formed among the sleeve, the top plate and the bottom plate, and the loading cavity is provided with a liquid injection and discharge port; the annular rings are sleeved outside the sleeve and are uniformly distributed along the axial direction of the sleeve. The liquid container can utilize liquid to rapidly manufacture equivalent standard weights on site so as to solve the problems of large quantity, heavy weight and high accuracy standard weights required by large-range weighing apparatus verification, thereby providing a simple, convenient and effective tool for weighing apparatus verification and quantity value transmission.

Description

Liquid container for manufacturing equivalent standard weights

Technical Field

The application relates to a liquid container for manufacturing equivalent standard weights, and belongs to the technical field of weighing apparatus verification.

Background

In the calibration or calibration work of the weighing apparatus, the standard weight is the basic tool. It needs to be manufactured, transported to the certification job site, and placed on the certified scale. After the certification work is completed, it needs to be transported back to a storage site, stored and maintained to maintain its function as a mass and quantity transfer tool and its accuracy in quantity.

For a large weighing apparatus with a large measuring range, the number of the required standard weights is naturally large and heavy. For example, a 100t scale, the total weight required by full-scale verification is not less than 100 t. The transportation and storage of the weights become a very big problem, which not only needs to consume a large amount of transportation cost, but also wastes a large amount of time, thereby almost becoming a difficult problem which is difficult to overcome. For the verification of the weighing apparatus and the national quantity value transmission, the guarantee of the fair trade is very unfavorable.

Disclosure of Invention

In order to solve the problems, the liquid container for manufacturing the equivalent standard weights can be used for manufacturing the equivalent standard weights in a liquid filling mode in real time on site by utilizing liquid to solve the problems of large quantity, heavy weight and high accuracy of the standard weights required by verification of a large-scale weighing machine, and therefore, a simple, convenient and effective tool is provided for verification of the weighing machine and quantity transmission.

The application provides a liquid container of preparation equivalent standard weight, includes:

a top plate, a sleeve and a bottom plate;

the two ends of the sleeve are respectively connected with the top plate and the bottom plate, the sleeve can be folded, a loading cavity is formed among the sleeve, the top plate and the bottom plate, and the loading cavity is provided with a liquid injection and discharge port;

the annular rings are sleeved outside the sleeve and are distributed along the axial direction of the sleeve.

Optionally, ropes are arranged between the top plate and the bottom plate, preferably at least three ropes are arranged between the top plate and the bottom plate uniformly.

Optionally, a positioning boss is arranged above the top plate, and a positioning groove matched with the positioning boss is formed below the bottom plate.

Optionally, the sleeve is made of a flexible material, and the top plate and the bottom plate are made of a non-flexible solid material. The circular ring can be made of any material capable of bearing large load;

the top of the sleeve is fixedly connected with the lower end face of the top plate through a first fastener, and the bottom of the sleeve is fixedly connected with the upper end face of the bottom plate through the first fastener;

preferably, the top plate and the bottom plate are circular.

Optionally, the top plate comprises a central top plate and an outer periphery connecting top plate, the central top plate is circular, the outer periphery connecting top plate is circular, the central top plate and the outer periphery connecting top plate are fastened and connected through a second fastening piece, and the lower end face of the outer periphery connecting top plate is fastened and connected with the top of the sleeve through a first fastening piece; and/or

The bottom plate comprises a central bottom plate and an outer peripheral connecting bottom plate, the central bottom plate is circular, the outer peripheral connecting bottom plate is circular, the central bottom plate and the outer peripheral connecting bottom plate are fastened and connected through a second fastener, and the upper end face of the outer peripheral connecting bottom plate is fastened and connected with the bottom of the sleeve through a first fastener;

preferably, the positioning boss is arranged on the central top plate and is arranged on the same central axis with the central top plate, and the positioning groove is arranged on the central bottom plate and is arranged on the same central axis with the central bottom plate. The connections must be sealed to prevent leakage of the liquid in the container.

Optionally, the liquid injection and discharge port is arranged on the sleeve and close to the bottom plate, and the liquid injection and discharge port is plugged by a plugging piece.

Optionally, the plugging piece comprises a valve core, a connecting rod and a connecting seat which are sequentially connected, the valve core is in an inverted truncated cone shape, and a spring is sleeved on the periphery of the connecting rod;

the liquid injection and discharge port comprises a first channel and a second channel, the first channel is in an inverted circular truncated cone shape and is abutted to the valve core, one end of the connecting rod is arranged in the first channel, the other end of the connecting rod and the connecting seat are arranged in the second channel, one end of the spring is connected with the connecting seat, and the other end of the spring is fixed on the second channel.

Optionally, a locking groove is formed in the second channel, the locking groove is formed in one side, away from the valve core, of the connecting seat, and an elastic piece is arranged in the locking groove and can extend out or retract along the radial direction of the second channel.

Preferably, one end of the elastic member away from the locking groove is configured as a circular arc.

Optionally, the liquid injection and discharge port further comprises a third channel, the third channel is arranged between the first channel and the second channel, and the radial cross-sectional area of the third channel is equal to the radial cross-sectional area of the bottom of the first channel and is smaller than the radial cross-sectional area of the second channel;

the connecting rod sequentially penetrates through the first channel, the third channel and the second channel, the radial cross-sectional area of the spring is larger than that of the third channel, and the spring is fixed to the top of the second channel.

Optionally, the connecting seat is circumferentially provided with a slot.

Preferably, the bottom plate is provided with an adjusting port, the adjusting port is consistent with the liquid injection and discharge port in structure, and the adjusting port is plugged through a plugging piece.

Benefits that can be produced by the present application include, but are not limited to:

1. the liquid container of preparation equivalent standard weight that this application provided, it must have the water source to belong to the weighing apparatus department of laying, can be in the weighing apparatus verification process local materials of gathering, and the equivalent standard weight of preparation anytime and anywhere, the equivalent standard weight only uses in the weighing apparatus verification for a short time, need not to consider the stability problem of measurement value.

2. The liquid container of preparation equivalent standard weight that this application provided, the container is light, easily warehousing and transportation to repeatedly usable, the life-span is not less than high-grade standard weight, and the liquid of loading in the container easily obtains, uses its preparation equivalent standard weight only need consume annotate liquid and accurate measurement time, but quick preparation.

3. The application provides a liquid container of preparation equivalent standard weight saves the heavy load warehousing and transportation flow of traditional weight, has saved the manufacturing cost of standard weight, has solved the unable problem of carrying out full range examination of wide range weighing apparatus.

4. The application provides a preparation equivalent standard weight's liquid container adopts high accuracy standard weight to calibrate high accuracy quality comparator, and high accuracy quality comparator later weighs the container after loading, accomplishes the quantity value transfer between standard weight and the equivalent standard weight.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a sectional view of a liquid container according to an embodiment of the present application in a water filled state;

FIG. 2 is a schematic view of a bottom plate and a sleeve of a liquid container according to an embodiment of the present disclosure;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

fig. 4 is a schematic structural view of a liquid container according to an embodiment of the present application in a non-filled state;

FIG. 5 is a schematic view of a plurality of container stacks according to embodiments of the present application;

FIG. 6 is a schematic structural diagram of a liquid container according to an embodiment of the present application in a water-filled state on a mass comparator;

FIG. 7 is a schematic structural diagram of a liquid container in a metering and weighing state on a mass comparator according to an embodiment of the present application;

fig. 8 is a schematic perspective view of a closure according to an embodiment of the present application;

list of parts and reference numerals:

11. a top plate; 12. a base plate; 121. a central floor; 122. the periphery is connected with a bottom plate; 123. a first fastener; 124. a second fastener; 13. positioning the boss; 14. a positioning groove; 15. a sleeve; 16. a circular ring; 17. a rope; 18. a liquid injection and discharge port; 181. a first channel; 182. a second channel; 183. a third channel; 19. a blocking piece; 191. a valve core 192, a connecting rod; 193. a connecting seat; 194. slotting; 196. a spring; 197. a locking groove; 198. an elastic member; 20. an adjustment port; 30. a mass comparator; 31. a bearing plate; 32. a table body; 33. a hose.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The containers of the following examples were capable of being filled with a liquid, which may be at least one of water, kerosene, lubricating oil, paraffin, to prepare equivalent standard weights. The following examples are given by way of illustration of water, but are not intended to limit the scope of the present application.

Referring to fig. 1 to 8, an embodiment of the present application discloses a liquid container for making an equivalent standard weight, comprising: a top plate 11 and a bottom plate 12; the sleeve 15, both ends of the sleeve 15 are connected with roof 11 and bottom plate 12 separately, and the sleeve 15 can be folded, form and load the cavity among sleeve 15, roof 11 and bottom plate 12, load the cavity and have liquid injection and discharge outlet 18; at least two rings 16, rings 16 cover the outside of sleeve 15 to along the axial distribution of sleeve 15.

The sleeve 15 can be folded, so that the container is in a thin disc shape during transportation, transportation is facilitated, and a heavy-load storage and transportation process of a traditional standard weight is omitted. After the container is filled with water through the liquid filling and discharging port 18, the sleeve 15 extends, the circular ring 16 is fastened on the outer side of the sleeve 15, the container is a cylinder with the shape similar to a corrugated pipe, the top plate 11, the bottom plate 12 and the circular ring 16 provide a stabilizing force for the sleeve 15, and the loaded container is convenient to place in multiple layers. The container can be used for quickly manufacturing equivalent standard weights on a verification site, is a closed container after water is loaded, has the characteristics of stable shape and physical and chemical properties along with time, does not change the quality due to environment and transportation, and does not need to consider the problem of the stability of the metering value in the verification process of a wide-range weighing instrument. Preferably, the rings 16 are evenly distributed along the circumference of the sleeve 15.

The container is used for preparing the equivalent standard weights, so that the cost for purchasing the ton-level weights and the cost for tracing the ton-level weights are reduced for large-range scale weighing apparatus manufacturing enterprises, and the factory inspection cost is greatly reduced; the metering verification mechanisms at all levels also reduce the cost for purchasing the ton-level weights, the weight transportation cost and the cost for tracing the sources of the ton-level weights, and the quantity value transfer cost is reduced; meanwhile, a large amount of manufacturing raw materials of the ton-level weight are saved, resources are saved for the society, and after the equivalent standard weight is used, the liquid can be recycled, so that no pollution or resource waste exists.

The container can be filled with water on site to manufacture equivalent standard weights, and the water can be natural water without causing environmental pollution, such as river water, lake water, well water, rainwater, tap water and the like. The natural state water is relatively easy to obtain in the verification field, and if leakage exists, the natural state water cannot cause any environmental pollution problem. In particular, the water reservoir may also be provided exclusively at the installation site of the weighing apparatus, or any other form of permissible water reservoir. In particular, in case of coastal areas, seawater may also be used. The water is temporarily borrowed, and after the calibration process of the apparatus to be weighed is finished, the water can be conveyed back to the original place or discharged to the allowed place on the spot, so that the environmental pollution is avoided.

Specifically, the container is filled with water and drained through the liquid injection and drainage port 18, does not need an exhaust hole, does not need liquid level monitoring, and can monitor the water injection state by means of pressure. The liquid injection and discharge port 18 can be placed on the periphery of the sleeve 15, and can also be arranged on the top plate 11 or the bottom plate 12, and one liquid injection and discharge port 18 can realize liquid injection and discharge, so that the opening arrangement of the container is saved, and the sealing performance of the container is improved.

In particular, the material of which the container is made may be any material capable of fulfilling the shape and functional requirements. Of course, it must be physically and chemically stable, harmless and pollution-free.

As an embodiment, a rope 17 is arranged between the top plate 11 and the bottom plate 12, the rope 17 is mainly used for bearing the load of the water injection pressure on the top plate 11 and the bottom plate 12, the height of the container can be limited, the top plate 11 and the bottom plate 12 are limited and fixed, preferably, at least three ropes 17 are arranged between the top plate 11 and the bottom plate 12 uniformly, the uniformly distributed ropes 17 can further improve the limiting and fixing effects on the top plate 11 and the bottom plate 12, the deformation of the top plate 11 and the bottom plate 12 due to the water injection pressure is reduced, and the flatness of the surface of the top plate 11 of the container after water injection is ensured.

In the calibration process, deviation detection needs to be carried out on the weighing apparatus, namely, equivalent standard weights made on site of all containers are placed at the 1/4 or 1/2 position of the weighing apparatus carrier, and the calibration mode can be realized only by placing a plurality of containers in a multi-layer manner. In a preferred embodiment, the rope 17 is a steel wire rope or other high strength rope 17, the rope 17 is used for bearing load after water injection, and after a plurality of containers are made into equivalent standard weights, the lower container can support the upper container, so that the stability of the containers placed in multiple layers in weighing apparatus determination is improved.

In one embodiment, a positioning boss 13 is disposed above the top plate 11, and a positioning groove 14 engaged with the positioning boss 13 is disposed below the bottom plate 12. Under this setting, no matter be in the transportation stage of empty container or the examination stage at wide range weighing apparatus, all can realize that the multilayer of container is placed, the location boss 13 cooperation that sets up on positioning groove 14 and the roof 11 of lower floor's container of seting up on the bottom plate 12 of upper strata container improves the connection stability between the upper and lower layer container, the smooth of the transportation of being convenient for and examination process goes on.

In one embodiment, the sleeve 15 is made of a flexible material, and the top plate 11 and the bottom plate 12 are made of a non-flexible solid material. The circular ring can be made of any material capable of bearing large load; the top of the sleeve 15 is fastened to the lower end face of the top plate 11 by a first fastening member 123, and the bottom of the sleeve 15 is fastened to the upper end face of the bottom plate 12 by a first fastening member 123. The sleeve 15 is made of a material that can be folded and sealed against water, and the top plate 11 and the bottom plate 12 are made of a rigid material that forms the shape of the filled container. The sleeve 15 is tightly connected with the top plate 11 and the bottom plate 12 through the first fastening member 123, the sealing performance of the sleeve 15 with the top plate 11 and the bottom plate 12 after connection is good, water cannot leak from the connection part, and therefore the stability of the container in the measuring value during the use period is improved. The sleeve 15 is in a free state in the form of a thin-walled ring 16, the ring 16 provided outside the sleeve 15 is made of a high-strength material and has a higher rigidity than the material of the sleeve 15, the ring 16 is fixed to the sleeve 15, and the ring 16 fixes the sleeve 15 in the circumferential direction. Preferably, the sleeve 15 is made of a special canvas material, the top plate 11 and the bottom plate 12 are made of an engineering plastic material, and the ring 16 is made of a steel wire material.

Specifically, one ring 16 is disposed at regular intervals in the axial direction of the sleeve 15, and the spacing distance between adjacent rings 16 can be adjusted according to the total height of the sleeve 15 and the circumference of the sleeve 15. Preferably, the distance between adjacent rings 16 is 1/3-1/10 of the height of the liquid container, the perimeter of the sleeve 15 is about the perimeter of the top plate, and the height of the sleeve 15 is the height of the container. The height diameter of the container is determined according to the mass of the equivalent standard weight to be manufactured, and the height is basically sought to be as low as possible.

In a preferred embodiment, the top plate 11 and the bottom plate 12 are circular to facilitate a tight connection with the sleeve 15, thereby improving the sealing performance of the container.

The top plate 11 and the bottom plate 12 may be an integral plate, and are connected to the sleeve 15 by the first fastening member 123, or the top plate 11 and the bottom plate 12 may be provided as separate structures, referring to fig. 2, the top plate 11 includes a central top plate 11 and an outer peripheral connecting top plate 11, the central top plate 11 is circular, the outer peripheral connecting top plate 11 is circular 16, the central top plate 11 and the outer peripheral connecting top plate 11 are fastened and connected by the second fastening member 124, and the lower end surface of the outer peripheral connecting top plate 11 is fastened and connected to the top of the sleeve 15 by the first fastening member 123; the bottom plate 12 comprises a central bottom plate 121 and an outer peripheral connecting bottom plate 122, the central bottom plate 121 is circular, the outer peripheral connecting bottom plate 122 is circular 16-shaped, the central bottom plate 121 and the outer peripheral connecting bottom plate 122 are fastened and connected through a second fastener 124, and the upper end face of the outer peripheral connecting bottom plate 122 is fastened and connected with the bottom of the sleeve 15 through a first fastener 123.

The periphery of the sleeve 15 is firstly connected with the periphery connecting top plate 11 and the periphery connecting bottom plate 122 through the first fastening piece 123, then the periphery connecting top plate 11 and the center top plate 11 are fastened through the second fastening piece 124, the periphery connecting bottom plate 122 and the center bottom plate 121 are fastened through the second fastening piece 124, the forming of the top plate 11 and the bottom plate 12 is achieved, the arrangement facilitates the connection of the sleeve 15 and the bottom plate 12 or the top plate 11, and the processing and forming efficiency of the container is improved.

As a specific embodiment, the first fastening member 123 connected to the joint of the bottom plate 122 and the sleeve 15 at the periphery of the bottom plate 12 is arranged above the bottom plate 12, that is, arranged inside the sleeve 15, and the first fastening member 123 connected to the joint of the top plate 11 and the sleeve 15 at the periphery of the top plate 11 is arranged below the top plate 11, that is, arranged inside the sleeve 15, so that the first fastening member 123 can be prevented from obstructing the matched placement of the upper and lower containers, and the convenience in use of the containers can be improved.

In a preferred embodiment, the connection surface between the outer peripheral connection bottom plate 122 and the central bottom plate 121 is disposed in a staggered manner, and the second fastening member 124 is disposed on the connection surface between the outer peripheral connection bottom plate 122 and the central bottom plate 121, so that the sealing performance between the outer peripheral connection bottom plate 122 and the central bottom plate 121 is improved, the space occupied by the second fastening member 124 is saved, and the installation is facilitated. Preferably, a sealing member is disposed at a joint between the outer peripheral connecting bottom plate 122 and the central bottom plate 121, so that the sealing effect of the bottom plate 12 can be ensured. Similarly, the connection surface of the peripheral connection top plate 11 and the central top plate 11 is arranged in a staggered manner, and the second fastening member 124 is arranged on the connection surface of the peripheral connection top plate 11 and the central top plate 11.

In one embodiment, the positioning boss 13 is disposed on the central top plate 11 and is disposed coaxially with the central top plate 11, and the positioning groove 14 is disposed on the central bottom plate 121 and is disposed coaxially with the central bottom plate 121. The center of mass of the container after being filled with water is stable when the container is in a motion state without acceleration or does not move, and in this way, the positioning groove 14 and the positioning boss 13 are arranged at the center of the container, so that the stability of the container placed in multiple layers can be further improved in the verification process of the container serving as an equivalent standard weight.

In one embodiment, the liquid injection and discharge port 18 is provided on the sleeve 15 and near the bottom plate 12, and the liquid injection and discharge port 18 is closed by a closing member 19. The liquid injection and discharge port 18 is formed in the periphery of the sleeve 15, so that folding of the sleeve 15 is not hindered, multi-layer placement among containers is not hindered, and the liquid injection and discharge port 18 is blocked by the blocking piece 19, so that sealing of the containers is realized.

As an embodiment, the blocking piece 19 comprises a valve core 191, a connecting rod 192 and a connecting seat 193 which are connected in sequence, the valve core 191 is in an inverted truncated cone shape, and a spring 196 is sleeved on the outer periphery of the connecting rod 192; the liquid injection and discharge port 18 includes a first passage 181 and a second passage 182, the first passage 181 is in an inverted circular truncated cone shape and abuts against the valve body 191, one end of a link 192 is disposed in the first passage 181, the other end and a connecting seat 193 are disposed in the second passage 182, one end of a spring 196 is connected to the connecting seat 193, and the other end is fixed to the second passage 182. In the water injection process, the water pipe is communicated with the second channel 182, the connecting seat 193 is pushed upwards by the water pipe, the spring 196 is compressed, the connecting rod 192 and the valve core 191 move towards the direction of the loading cavity, water enters the container from the connecting seat 193 and the first channel 181, when the container is not injected with water or is full of the container, the valve core 191 is abutted against the first channel 181 again under the action force of the water and the pulling force of the spring 196, the valve core 191 is reset, the self-sealing of the liquid injection and discharge port 18 is realized, the water in the container is prevented from being leaked, and the stability of the container quantity value is improved; when water needs to be drained, the water pipe can be used for continuously jacking the connecting seat 193 upwards, so that a gap exists between the valve core 191 and the first channel 181, and water in the container flows out of the first channel 181 and the connecting seat 193 to the water pipe in sequence, so that water is discharged. Above-mentioned shutoff piece 19 set up can realize intaking by oneself and the drainage to automatic seal after intaking and drainage are accomplished need not the manual work and operates, can improve the sealing performance of container, can practice thrift operating procedure again, improve the use convenience of container.

In one embodiment, the second channel 182 has a locking groove 197, the locking groove 197 is disposed on a side of the connecting seat 193 away from the valve core 191, and an elastic member 198 is disposed in the locking groove 197, wherein the elastic member 198 can extend or retract along a radial direction of the second channel 182. The elastic component 198 that sets up in the locking groove 197 can lock the water pipe to realize water injection or drainage in-process, the location of water pipe and shutoff piece 19, after treating water injection or drainage process completion, can use external force to take out the water pipe from elastic component 198, this elastic component 198 set up the locking that can realize the water pipe, further improve the practicality of container.

Specifically, the locking groove 197 may be a single groove formed along the radial direction of the second passage 182, one elastic member 198 is disposed inside the groove, and the number of the grooves may be two or more; the locking groove 197 may also be an annular groove formed along the radial direction of the second passage 182, an annular elastic member 198 is disposed in the annular groove, and the annular elastic member 198 is tightly fastened to the circumferential direction of the water pipe to lock the water pipe.

In a preferred embodiment, an end of the elastic member 198, which is away from the locking groove 197, that is, a free end of the elastic member 198, is formed in a circular arc shape, which facilitates the water pipe to compress the elastic member 198, thereby achieving locking of the water pipe.

In one embodiment, the liquid injection and discharge port 18 further includes a third channel 183, the third channel 183 is disposed between the first channel 181 and the second channel 182, and the radial cross-sectional area of the third channel 183 is equal to the radial cross-sectional area of the bottom of the first channel 181 and smaller than the radial cross-sectional area of the second channel 182; the link 192 passes through the first passage 181, the third passage 183, and the second passage 182 in this order, the radial cross-sectional area of the spring 196 is smaller than that of the third passage 183, and the spring 196 is fixed to the top of the second passage 182. The third channel 183 plays a role in connecting the first channel 181 and the second channel 182, and the radial cross-sectional area of the third channel 183 is smaller than that of the second channel 182, referring to fig. 3, the third channel 183 can limit the spring 196, and the spring 196 can be ensured to be timely restored to the original position, so that the self-sealing of the liquid injection and discharge port 18 is realized, and the connecting seat 193 can be prevented from being pushed to the first channel 181 by a water pipe.

In one embodiment, the length of the spool 191 is smaller than the length of the first passage 181, the spool 191 abuts against one side of the first passage 181 close to the loading chamber, and after the spool 191 seals the first passage 181, a certain gap exists in the first passage 181, which is beneficial for the compression of the spring 196, so that the link 192 pushes the spool 191 to move towards the loading chamber, facilitates the flow of water, and improves the water filling and draining efficiency.

In one embodiment, the connecting seat 193 is circumferentially provided with a slot 194, when water is filled, the top of the water pipe pushes the connecting seat 193 out towards the first channel 181, the connecting rod 192 pushes the valve core 191 to move towards the loading cavity, water flows into the loading cavity from the water pipe, the slot 194, the second channel 182, the third channel 183 and the first channel 181, and when water is drained, the flowing direction of the water is opposite.

In one embodiment, referring to fig. 6-7, the bottom plate 12 is provided with an adjustment port 20, the adjustment port 20 has the same structure as the liquid injection and discharge port 18, and the adjustment port 20 is also sealed by a sealing member 19. In a normal state, the bottom plate 12 is placed on the bearing plate 31 of the mass comparator 30 for loading, after the loading is completed, the platform body 32 of the mass comparator 30 rises to weigh the container, the mass comparator 30 is provided with the hose 33, the tail end of the hose 33 is provided with the plug 331, the adjusting port 20 is arranged, and the bottom plate can be communicated with the plug 331 arranged on the mass comparator 30 in the process that the platform body 32 of the mass comparator 30 weighs the container, so that the quality of the container can be finely adjusted.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A liquid container for making an equivalent standard weight, comprising:

a top plate and a bottom plate;

2. The liquid container for making an equivalent standard weight according to claim 1, wherein ropes are provided between the top plate and the bottom plate, preferably at least three ropes are provided between the top plate and the bottom plate.

3. The liquid container for manufacturing the equivalent standard weight according to claim 1, wherein a positioning boss is arranged above the top plate, and a positioning groove matched with the positioning boss is arranged below the bottom plate.

4. The liquid container for making an equivalent standard weight according to claim 1, wherein the sleeve is made of a flexible material, and the top plate, the bottom plate and the circular ring are made of a rigid material;

preferably, the top plate and the bottom plate are circular.

5. The liquid container for manufacturing the equivalent standard weight according to claim 4, wherein the top plate comprises a central top plate and an outer peripheral connecting top plate, the central top plate is circular, the outer peripheral connecting top plate is circular, the central top plate and the outer peripheral connecting top plate are tightly connected through a second fastening piece, and the lower end face of the outer peripheral connecting top plate is tightly connected with the top of the sleeve through a first fastening piece; and/or

preferably, the positioning boss is arranged on the central top plate and is arranged with the central top plate in a coaxial manner, and the positioning groove is arranged on the central bottom plate and is arranged with the central bottom plate in a coaxial manner.

6. The liquid container for manufacturing equivalent standard weights according to any one of claims 1 to 5, wherein the liquid injection and discharge port is arranged on the sleeve and close to the bottom plate, and the liquid injection and discharge port is sealed by a sealing piece.

7. The liquid container for manufacturing the equivalent standard weight according to claim 6, wherein the blocking piece comprises a valve core, a connecting rod and a connecting seat which are sequentially connected, the valve core is in an inverted truncated cone shape, and a spring is sleeved on the periphery of the connecting rod;

8. The liquid container for manufacturing the equivalent standard weight according to claim 7, wherein the second channel is provided with a locking groove, the locking groove is arranged on one side of the connecting seat away from the valve core, and an elastic piece is arranged in the locking groove and can extend out or retract along the radial direction of the second channel.

9. The liquid container for manufacturing equivalent standard weights according to claim 8, wherein the liquid injection and discharge port further comprises a third channel, the third channel is arranged between the first channel and the second channel, and the radial cross-sectional area of the third channel is equal to the radial cross-sectional area of the bottom of the first channel and is smaller than the radial cross-sectional area of the second channel;

10. The liquid container for manufacturing the equivalent standard weight according to claim 9, wherein the connecting seat is provided with a groove in the circumferential direction.