CN219244876U - In-container pressure detection device and in-container pressure detection system - Google Patents

Abstract

The present application relates to a device and a system for detecting pressure in a container. The container internal pressure detection device includes: the detection assembly comprises a pressure gauge, a connecting piece and a stop piece, wherein the connecting piece is connected to the pressure gauge, the stop piece is arranged at one end of the connecting piece far away from the pressure gauge, a communication hole is formed in the stop piece, and the communication hole is communicated with the interior of the pressure gauge through the connecting piece so as to communicate the interior of the container with the interior of the pressure gauge after the connecting piece extends into the container, and the pressure inside the container is detected by the pressure gauge; and the sealing component is positioned on one side of the stopping piece, which is close to the pressure gauge, and comprises a supporting piece and a sealing piece, wherein the supporting piece is sleeved outside the connecting piece and can be arranged in a relative motion with the connecting piece, and the sealing piece is arranged on the supporting piece so as to be extruded and deformed by the stopping piece in the relative motion process of the supporting piece and the connecting piece and seal the opening of the container. Thus, accurate detection of the pressure change condition in the container can be conveniently realized.

Description

In-container pressure detection device and in-container pressure detection system

Technical Field

The present disclosure relates to pressure detection technology, and in particular, to a device and system for detecting pressure in a container.

Background

Containers such as bottles are usually filled with contents such as water and beverages to form products, which are sold on the market. For such products, there is a certain requirement for pressure change in the container over a period of time, so the pressure change in the container is generally detected before the container is marketed, and the pressure change is used as one of conditions for judging whether the product is qualified or is used as a design basis for theoretical filling of the pressure in the container.

In the related art, a destructive manner such as puncturing a container is generally adopted to achieve the corresponding purpose of pressure detection, however, the destructive detection manner has the problems of inconvenient detection and inaccurate detection result. Because, when adopting this kind of destructive test mode, one sample only can detect once, to realize the detection to pressure variation, need reserve a plurality of samples, and destroy one sample every time, carry out pressure detection, and then by the pressure detection result of all samples, obtain the pressure variation detection result of product, in the corresponding process, reserve a plurality of samples, and destroy one sample every time and detect, all result in the testing process complicacy, the detection degree of difficulty is great, influence the detection convenience, moreover, because the destruction condition (for example the position and the size of perforating on each container) of every sample is difficult to keep totally unanimous, and the initial pressure of every sample also probably is not the same, consequently, the accuracy of pressure detection result is easily influenced.

Therefore, how to conveniently and accurately detect the pressure change condition in the container is a difficult problem to be solved.

Disclosure of Invention

The application aims to provide a device and a system for detecting the pressure in a container, so as to conveniently realize accurate detection of the pressure change condition in the container.

In order to achieve the above object, the present application provides a device for detecting pressure in a container, comprising:

the detection assembly comprises a pressure gauge, a connecting piece and a stop piece, wherein the connecting piece is connected to the pressure gauge, the stop piece is arranged at one end of the connecting piece far away from the pressure gauge, a communication hole is formed in the stop piece, and the communication hole is communicated with the interior of the pressure gauge through the connecting piece so as to communicate the interior of the container with the interior of the pressure gauge after the connecting piece extends into the container, and the pressure inside the container is detected by the pressure gauge; and

the sealing component is positioned on one side of the stop piece, which is close to the pressure gauge, and comprises a support piece and a sealing piece, wherein the support piece is sleeved outside the connecting piece and can be arranged in a relative motion with the connecting piece, and the sealing piece is arranged on the support piece so as to be extruded and deformed by the stop piece in the relative motion process of the support piece and the connecting piece and seal the opening of the container.

In some embodiments, the device further comprises an actuator movably sleeved outside the connector and located on a side of the support away from the stopper to move closer to or farther from the support during movement relative to the connector and to drive the support and the connector to move relative to each other during movement closer to the support.

In some embodiments, the actuating member is movably sleeved outside the connecting member by being threadably coupled to the connecting member.

In some embodiments, the device further comprises a limiting member disposed on the supporting member and located on a side of the sealing member away from the stopping member, for abutting against an end surface of the opening of the container when the sealing member is inserted into the container, so as to limit displacement of the supporting member.

In some embodiments, the in-container pressure detecting means further comprises securing means for securing the in-container pressure detecting means to the container after the seal seals the opening of the container.

In some embodiments, the securing means comprises a securing member that is removably connected to the support member or the connecting member and/or the securing member is adapted to removably connect with the container.

In some embodiments, the fixing member is engaged with the supporting member or the connecting member to be detachably connected to the supporting member or the connecting member; and/or the fixing piece is used for being clamped with the container so as to be detachably connected with the container.

In some embodiments, the fixing member includes a first fixing portion and a second fixing portion connected to each other, the first fixing portion is provided with a first clamping groove, the first clamping groove is clamped with the supporting member or the connecting member, and the second fixing portion is provided with a second clamping groove, the second clamping groove is used for clamping with the container.

In some embodiments, the securing device further comprises a reinforcement member disposed on the support member or the connector member and securing the securing member when the securing member is connected to the support member or the connector member.

In some embodiments, the reinforcement is threadably connected to the support or the connector.

In some embodiments, the seal is made of food grade silicone.

In addition, the system for detecting the pressure in the container provided by the application comprises the container and further comprises the device for detecting the pressure in the container according to any embodiment of the application.

In some embodiments, the container is a bottle.

In some embodiments, the container is a PET bottle.

The pressure loss condition of the container of the product can be obtained by adopting a nondestructive mode to carry out long-term pressure tracking on one sample, so that the accurate detection of the pressure change condition of the container can be conveniently realized.

Other features of the present application and its advantages will become apparent from the following detailed description of exemplary embodiments of the present application, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a device for detecting pressure in a container according to an embodiment of the present application.

Fig. 2 is a bottom view of the pressure detecting device in the container according to the embodiment of the present application.

Fig. 3 is an exploded view of the pressure detecting device in the container according to the embodiment of the present application.

Reference numerals illustrate:

10. a device for detecting the pressure in the container;

1. a detection assembly; 11. a pressure gauge; 12. a dial; 13. a joint; 14. a vent hole; 15. a connecting piece; 16. a stopper; 17. a communication hole;

2. a seal assembly; 21. a support; 22. a seal;

3. an actuator;

4. a limiting piece;

5. a fixing device;

6. a fixing member; 61. a first fixing portion; 62. a second fixing portion; 63. a connection part; 64. a fastener; 65. a first clamping groove; 66. a second clamping groove; 67. a connecting rod;

7. and (3) a reinforcement.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the inventors, are within the scope of the present application, based on the embodiments herein.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

In the description of the present application, it should be understood that, the terms "first," "second," etc. are used for defining the components, and are merely for convenience in distinguishing the corresponding components, and if not otherwise stated, the terms are not to be construed as limiting the scope of the present application.

In addition, the technical features described below in the different embodiments of the present application may be combined with each other as long as they do not collide with each other.

Fig. 1-3 schematically illustrate a device for detecting pressure in a container according to the present application.

Referring to fig. 1-3, in the present application, a device 10 for detecting pressure within a container includes a detection assembly 1 and a seal assembly 2. The detection assembly 1 comprises a pressure gauge 11, a connecting piece 15 and a stop piece 16, wherein the connecting piece 15 is connected to the pressure gauge 11, the stop piece 16 is arranged at one end, far away from the pressure gauge 11, of the connecting piece 15, a communication hole 17 is formed in the stop piece 16, the communication hole 17 is communicated with the inside of the pressure gauge 11 through the connecting piece 15, so that after the container is stretched into the container, the inside of the container is communicated with the inside of the pressure gauge 11, and the pressure inside the container is detected by the pressure gauge 11. The sealing assembly 2 is located on one side of the stop member 16, which is close to the pressure gauge 11, and comprises a support member 21 and a sealing member 22, wherein the support member 21 is sleeved outside the connecting member 15 and is arranged in a manner of being capable of moving relative to the connecting member 15, and the sealing member 22 is arranged on the support member 21 so as to be pressed and deformed by the stop member 16 during the relative movement of the support member 21 and the connecting member 15, so as to seal the opening of the container.

The provided device 10 for detecting pressure in a container can be placed on the container for a long period of time, and can detect pressure change in the same container without damaging the container.

When the pressure detecting device 10 is used, the stopper 16 and the sealing member 22 above the stopper 16 are positioned in the container by inserting the pressure detecting device 10 into the container through the opening of the container, then the connecting member 15 and the supporting member 21 are relatively moved, the sealing member 22 is compressed by the stopper 16, the sealing member 22 is pressed and deformed, and the opening of the container is sealed, so that the pressure change condition in the container can be detected by the pressure gauge 11 under the condition that the container is sealed. Wherein, when the sealing member 22 seals the opening of the container, the stopper 16 is located in the container, and since the stopper 16 communicates the interior of the container with the interior of the pressure gauge 11, the pressure gauge 11 can detect the pressure in the container for a period of time with the container sealed after the sealing member 22 seals the opening of the container, so as to obtain the pressure change condition in the container.

In the above process, since the container itself is not required to be damaged by puncturing, puncturing and the like, a plurality of samples are not required to be reserved, and damage detection on different samples at intervals is not required, but the pressure detecting device 10 in the container can be directly placed in the same sample to detect the pressure change condition in the container of the same sample for a long time, so that the detecting process can be effectively simplified, the detecting difficulty is reduced, and the pressure in the container is conveniently detected. Moreover, as the pressure detecting device 10 in the container can detect the pressure change condition in the same container only by directly placing the pressure detecting device in the same sample, the pressure detecting device does not need to damage different samples and is not influenced by the damage condition of the different samples and the consistency of the initial pressure, more accurate detecting results can be obtained, and the accuracy of the pressure detecting results in the container is effectively improved. Meanwhile, the sample is not required to be destroyed, so that the waste of the sample can be reduced, and the cost is saved.

Therefore, the provided container internal pressure detection device 10 can track the pressure of a sample for a long time by adopting a nondestructive mode to obtain the pressure loss condition of the container of the product, so that the detection of the container internal pressure can be effectively facilitated, the accuracy of the detection result of the container internal pressure is improved, the accurate detection of the container internal pressure is conveniently realized, the product is more accurately judged to be qualified, or the theoretical filling value of the container internal pressure is more accurately guided, and the product quality is effectively improved.

Wherein the sealing of the container opening by the sealing member 22 is accomplished during the relative movement of the connecting member 15 and the supporting member 21. In order to facilitate the relative movement of the connecting element 15 and the supporting element 21, and with reference to figures 1 and 3, in some embodiments the in-container pressure detecting means 10 comprise not only the detecting assembly 1 and the sealing assembly 2, but also the actuating element 3. The actuator 3 is movably sleeved outside the connecting member 15 and is located on the side of the support member 21 remote from the stopper 16 to move closer to or away from the support member 21 during movement relative to the connecting member 15 and to drive the support member 21 and the connecting member 15 to move relatively during movement closer to the support member 21.

Based on the arranged actuating piece 3, when the opening of the container needs to be sealed, the actuating piece 3 only needs to move on the connecting piece 15 towards the supporting piece 21 to push the supporting piece 21, so that the supporting piece 21 and the connecting piece 15 can move relatively, the sealing piece 22 on the supporting piece 21 is pressed to the degree of being capable of sealing the opening of the container by the stop piece 16 on the connecting piece 15, the opening of the container is sealed, and the pressure gauge 11 can smoothly detect the pressure change in the sealed container, so that the sealing device is simple and convenient.

As a way of achieving the relative movement of the actuating member 3 and the connecting member 15, see fig. 3, in some embodiments the actuating member 3 is movably sleeved outside the connecting member 15 by being screwed with the connecting member 15. Thus, the relative movement of the actuating piece 3 and the connecting piece 15 can be realized only by screwing the actuating piece 3, and the relative movement of the connecting piece 15 and the supporting piece 21 can be realized simply and conveniently. Moreover, the actuating piece 3 is connected with the connecting piece 15 through threads, so that the relative displacement between the actuating piece 3 and the connecting piece 15 is controlled conveniently and accurately, and the relative displacement between the connecting piece 15 and the supporting piece 21 is controlled accurately, and a better sealing effect is achieved. In addition, the actuating member 3 and the connecting member 15 are connected through threads, so that after the actuating member 3 moves to a position where the sealing member 22 seals the opening of the container, the actuating member 3 can be stably kept at the corresponding position, and the position of the actuating member 3 can be effectively prevented from changing without additionally taking other measures, so that the sealing effect is not influenced due to the displacement of the actuating member 3, the accuracy of the detection result is influenced, and therefore, the accurate detection of the pressure change condition in the container by the pressure detection device 10 in the container is more convenient.

In the above embodiments, the relative movement between the connecting member 15 and the supporting member 21 may be either that one of the connecting member 15 and the supporting member 21 moves, the other is not moving, or that both the connecting member 15 and the supporting member 21 move, but the directions and/or the speeds of the movements of both are different.

For example, referring to fig. 1 and 3, the in-container pressure detecting device 10 of each of the foregoing examples further includes a stopper 4, the stopper 4 being provided on the support 21 and located on a side of the seal 22 away from the stopper 16 for abutting against an end face of an opening of the container to restrict displacement of the support 21 when the seal 22 is inserted into the container.

Since the limiting piece 4 can press on the end face of the container opening to limit the downward displacement of the supporting piece 21, the supporting piece 21 is prevented from driving the sealing piece 22 to move towards the stopping piece 16, therefore, when the container opening needs to be sealed, the supporting piece 21 can keep not to move downwards under the action of the limiting piece 4 and the end face of the container opening, the stopping piece 16 is driven by the connecting piece 15 to move upwards, the pressing of the stopping piece 16 on the sealing piece 22 is achieved, and the sealing of the sealing piece 22 on the container opening is achieved, namely, in this case, the sealing of the sealing piece 22 on the container opening is achieved through the movement of the connecting piece 15 and the stopping piece 16, and the supporting piece 21 is fixed. In the corresponding process, as only one of the connecting piece 15 and the supporting piece 21 moves, whether the sealing piece 22 seals the opening of the container can be controlled, the structure is simple, and the operation is convenient. Moreover, the limiting piece 4 is pressed on the end face of the opening of the container, and can also limit the relative displacement between the whole pressure detecting device 10 in the container and the container to a certain extent, so that in the sealing process, the pressure detecting device 10 in the container is not required to be additionally fixed by hands or tools, and especially, the relative movement between the supporting piece 21 and the connecting piece 15 can be realized without additionally fixing the detecting component 1 or the supporting piece 21 by hands or tools, therefore, the operation process can be further simplified, and the more convenient pressure detecting process can be realized.

As a further improvement to the previous embodiments, referring to fig. 1 and 3, the in-container pressure detecting device 10 further comprises a fixing device 5, the fixing device 5 being configured to fix the in-container pressure detecting device 10 to the container after the sealing member 22 seals the opening of the container. In this way, after the opening of the container is sealed by the sealing member 22, the container internal pressure detecting device 10 can be fixed to the container by the fixing device 5, so that the relative position between the container internal pressure detecting device 10 and the container is not changed any more, and the problems of seal failure, detection failure and the like caused by the change of the relative position between the container internal pressure detecting device 10 and the container due to shaking and the like are prevented. It can be seen that by arranging the fixing device 5, the working reliability of the pressure detecting device 10 in the container is improved, and more accurate detection of the pressure change condition in the container is realized.

To achieve a fixation of the fixation device 5 to the pressure detection device 10 within the container, see fig. 1-3, in some embodiments the fixation device 5 comprises a fixation member 6. The fixing member 6 is used to connect the in-container pressure detecting means 10 with the container after the sealing member 22 seals the opening of the container.

The connection between the fixing member 6 and the pressure detecting device 10 in the container may be detachable connection or may be non-detachable connection. For example, referring to fig. 1 and 3, in some embodiments, the securing member 6 is removably connected to the support member 21 or the connecting member 15, and in particular, referring to fig. 1 and 3, in some embodiments, the securing member 6 is snapped into engagement with the support member 21 or the connecting member 15 to removably connect to the support member 21 or the connecting member 15. In this way, the fixing member 6 can be removed from the in-container pressure detecting means 10 before the sealing member 22 seals the opening of the container so as not to interfere with the relative movement between the connecting member 15 and the supporting member 21, and the fixing member 6 can be connected to the in-container pressure detecting means 10 to fix the in-container pressure detecting means 10 to the container after the sealing member 22 seals the opening of the container. It can be seen that the fixing member 6 is detachably connected with the pressure detecting device 10 in the container, so that different requirements of the sealing member 22 for sealing the opening of the container can be met conveniently.

In addition, referring to fig. 1 and 3, in some embodiments, the fixing member 6 is configured to be clamped to the container, and at this time, the fixing member 6 is configured to be detachably connected to the container, that is, the fixing member 6 is detachably connected to the container, so that after the detection is finished, the fixing member 6 can be removed from the container without affecting the normal use of the container.

As an example of the fixing member 6 that is engaged with both the container internal pressure detecting device 10 and the container, referring to fig. 1 and 3, the fixing member 6 includes a first fixing portion 61 and a second fixing portion 62 that are connected to each other, the first fixing portion 61 is provided with a first clamping groove 65, the first clamping groove 65 is engaged with the supporting member 21 or the connecting member 15, the second fixing portion 62 is provided with a second clamping groove 66, and the second clamping groove 66 is used for being engaged with the container. In this way, after the sealing member 22 seals the opening of the container, the connection between the pressure detecting device 10 in the container and the container by the fixing member 6 can be achieved simply and conveniently by only clamping the first connecting member 15 or the supporting member 21 into the first clamping groove 65 of the fixing member 6 and clamping the container into the second clamping groove 66 of the fixing member 6.

In addition, referring to fig. 1 and 3, in the case where the fixing device 5 includes the fixing member 6 in the foregoing embodiments, the fixing device 5 may further include a reinforcement member 7, the reinforcement member 7 being provided on the support member 21 or the connection member 15, and fastening the fixing member 6 when the fixing member 6 is connected to the support member 21 or the connection member 15. In this way, the reinforcing member 7 and the fixing member 6 firmly fix the in-container pressure detecting device 10 to the container, and the in-container pressure detecting device 10 can be reliably prevented from shaking during the detection process, so that the accuracy of the detection result is not affected by shaking.

Wherein, referring to fig. 3, in some embodiments, the reinforcement 7 is threadably connected to the support 21 or the connector 15. At this time, only the reinforcement 7 needs to be screwed, whether the reinforcement 7 fastens the fixing piece 6 can be controlled, and the fastening device is simple and convenient, and can realize a reliable fastening effect.

In the foregoing embodiments, the container may be various containers such as a bottle (e.g., PET bottle), a can, or a barrel, and the content in the container may be various contents such as a liquid (e.g., purified water or beverage) or a semisolid.

When the content in the container is food such as purified water or beverage, the sealing member 22 can be made of food-grade silica gel, so that the sealing member 22 can be effectively prevented from adversely affecting the quality of the food in the container while a good sealing effect is achieved, and further the influence of the pressure detection device 10 in the container on the food in the container is reduced.

The present application is further described below in connection with the embodiments shown in fig. 1-3.

In the embodiment shown in fig. 1-3, the in-container pressure detecting device 10 is used for detecting pressure change of a PET bottled product, that is, in this embodiment, the container is a PET bottle, where the in-container pressure detecting device 10 is an in-bottle pressure detecting device and the opening of the container is the mouth of the bottle. Also, in this embodiment, the PET bottle is a bottle for holding purified water or beverage.

As shown in fig. 1 to 3, in this embodiment, the in-container pressure detecting device 10 includes a detecting assembly 1, a sealing assembly 2, an actuating member 3, a stopper 4, and a fixing device 5, and the detecting assembly 1 includes a pressure gauge 11, a connecting member 15, and a stopper 16, the sealing assembly 2 includes a supporting member 21 and a sealing member 22, and the fixing device 5 includes a fixing member 6 and a reinforcing member 7.

Wherein the pressure gauge 11 is used for detecting the pressure in the bottle. As shown in fig. 3, in this embodiment, the pressure gauge 11 includes a dial 12 and a joint 13. The dial 12 is internally provided with scales and pointers, the upper surface of the dial 12 is a dial surface, and the dial surface is transparent, so that the dial 12 can clearly display the pressure value. The joint 13 has a cylindrical shape, is attached to the lower surface of the dial 12 (i.e., the surface of the dial 12 opposite to the dial surface), and extends downward from the lower surface of the dial 12. The inside of the joint 13 is provided with a vent hole 14, and the vent hole 14 is communicated with the inside of the dial 12. When the bottle interior space communicates with the inside of the dial 12 via the vent hole 14, the pressure gauge 11 detects the pressure inside the bottle and is displayed by the dial 12.

The connection 15 is connected to the pressure gauge 11 and the stop 16 and the actuator 3 provide the basis for installation. As shown in fig. 1 and 3, in this embodiment, the connecting member 15 is cylindrical, is sleeved outside the joint 13, and protrudes in a direction away from the dial 12 (i.e., downward) with respect to the joint 13. The outer surface of the connecting piece 15 is provided with a thread for achieving a threaded connection with the actuating piece 3. And, the inside of the connection member 15 is hollow and communicates with the vent hole 14 of the pressure gauge 11, so that the connection member 15 can communicate the stopper 16 and the inside of the dial 12.

The stopper 16 is fixed to the connecting member 15 for pressing the sealing member 22 to seal the bottle mouth during upward movement of the connecting member 15. As shown in fig. 3 and 2, in this embodiment, the stopper 16 is cylindrical, fixed to the lower end of the connecting member 15, and is provided at its center with a communication hole 17 penetrating the stopper 16 in the thickness direction (i.e., up-down direction). The communication hole 17 communicates the external environment with the inside of the connecting piece 15, so that the communication hole 17 communicates with the inside of the pressure gauge 11 through the connecting piece 15, and after the stopper 16 is inserted into the bottle, gas in the bottle can enter the inside of the dial 12 through the communication hole 17, the connecting piece 15 and the vent hole 14, and the pressure gauge 11 can detect the pressure in the bottle, and further, after a period of time, the pressure change condition in the bottle can be detected. In this embodiment, the outer diameter of the stopper 16 is larger than the outer diameter of the connector 15, and the outer diameters of both the connector 15 and the stopper 16 are smaller than the inner diameter of the bottle mouth, so that, in use, the lower portion of the connector 15 and the stopper 16 can be inserted into the interior of the bottle via the bottle mouth.

The actuating member 3 is fitted over the connecting member 15 for driving the relative movement between the connecting member 15 and the supporting member 21 by movement relative to the connecting member 15, so that the sealing member 22 is expanded or relaxed, thereby controlling whether the mouth is sealed. In this embodiment the actuating member 3 is a nut, the inner surface of which is provided with a thread, which cooperates with a thread on the outer surface of the connecting member 15 to achieve a threaded connection between the actuating member 3 and the connecting member 15.

The supporting member 21 is sleeved on the connecting member 15 and is located between the actuating member 3 and the stop member 16, and is used for supporting the sealing member 22 and the limiting member 4. As shown in fig. 1 and 3, in this embodiment, the support member 21 is cylindrical, and is sleeved on the connecting member 15, and is located below the threads on the outer surface of the connecting member 15, and the inner surface of the support member is smooth, so that the support member 21 and the connecting member 15 are slidably connected, and the support member 21 and the connecting member 15 can relatively move along the axial direction of the two. As can be seen from fig. 3, in this embodiment, the outer diameter of the supporting member 21 is smaller than the outer diameter of the actuating member 3 and larger than the inner diameter of the actuating member 3, so that during the screwing down of the actuating member 3, the actuating member 3 can abut against the upper end surface of the supporting member 21, apply a force to the supporting member 21 and then receive a reaction force applied by the supporting member 21, so that when the supporting member 21 cannot move downward due to the limiting effect of the limiting member 4, the screwing down of the actuating member 3 is continued, and the actuating member 3 cannot move downward due to the blocking of the supporting member 21, so that the connecting member 15 moves upward under the action of the actuating member 3 and then drives the stopper 16 to move upward together, so that the stopper 16 can generate a relative movement with respect to the sealing member 22 on the supporting member 21, squeeze the sealing member 22 to crush and press the sealing member 22 to widen the bottle mouth.

The limiting piece 4 is disposed on the supporting piece 21, and is configured to limit the downward movement of the supporting piece 21 by abutting against the upper end surface of the bottle mouth, so as to realize the relative movement between the supporting piece 21 and the connecting piece 15, and further realize the relative movement between the stopping piece 16 and the sealing piece 22, thereby completing the sealing of the bottle mouth. As shown in fig. 1 and 3, in this embodiment, the stopper 4 is cylindrical, is fixed to the lower end of the support 21, and has an outer diameter larger than the bottle mouth so that it can press against the upper end surface of the bottle mouth, restricting downward displacement of the support 21 and the seal 22 on the support 21.

A seal 22 is provided on the support 21 for sealing the mouth of the bottle. In this embodiment, the sealing member 22 is made of food grade silica gel, and as shown in fig. 1 and 3, the sealing member 22 is cylindrical, is sleeved outside the connecting member 15, is located below the limiting member 4 and above the stopping member 16, and is fixed to the lower surface of the limiting member 4 by means of adhesion or the like.

The fixing member 6 is engaged with the supporting member 21 and engaged with the bottle for fixing the in-container pressure detecting device 10 to the bottle together with the reinforcing member 7. As shown in fig. 1 to 3, in this embodiment, the fixing member 6 includes a first fixing portion 61, a second fixing portion 62, and a connecting portion 63. The first fixing portion 61 and the second fixing portion 62 are each plate-shaped, are arranged at intervals in the up-down direction, are opposed to each other, and are supported by the connecting portion 63. The first fixing portion 61 and the second fixing portion 62 are provided with a first engaging groove 65 and a second engaging groove 66, respectively. The first clamping groove 65 and the second clamping groove 66 are non-closed arc grooves with open side walls, and are respectively matched with the outer surface of the supporting piece 21 and the outer surface below the supporting ring of the bottle so as to realize the clamping connection of the fixing piece 6, the supporting piece 21 and the bottle. The connecting portion 63 is supported between the first fixing portion 61 and the second fixing portion 62, and includes two connecting rods 67, and the two connecting rods 67 are disposed on both sides of the center of the first clamping groove 65 and the second clamping groove 66, and are connected to the first fixing portion 61 and the second fixing portion 62 by fasteners 64, so as to support the first fixing portion 61 and the second fixing portion 62.

The reinforcement 7 is fitted over the outside of the support 21 for fixing the device 10 for detecting the pressure inside the container to the bottle together with the fixing member 6. As shown in fig. 1 and 3, in this embodiment, the reinforcement 7 is a nut, the inner surface of which is provided with threads, and correspondingly, the outer surface of the support 21 is provided with threads, so that the reinforcement 7 is screwed with the support 21. Also, as is apparent from fig. 1 and 3, in this embodiment, in the up-down direction (also in the axial direction of the connecting member 15 and the supporting member 21), the reinforcement 7 is located between the actuating member 3 and the stopper 4, and between the first fixing portion 61 and the stopper 4, and the outer diameter of the reinforcement 7 is larger than the size of the first card slot 65, so that the reinforcement 7 can fasten the first fixing portion 61 between the actuating member 3 and the reinforcement 7.

It can be seen that in this embodiment, the supporting member 21 is slidably sleeved outside the connecting member 15, the actuating member 3 is screwed outside the connecting member 15, the reinforcing member 7 is screwed outside the supporting member 21, the stopper 4 and the sealing member 22 are fixed to the supporting member 21, and the dial 12, the actuating member 3, the first fixing portion 61, the reinforcing member 7, the stopper 4, the sealing member 22 and the stopper 16 are sequentially arranged in the top-to-bottom direction.

Based on the above configuration, the device 10 for detecting pressure in a container according to this embodiment can conveniently and accurately detect pressure change in a bottle, and the working process thereof can be approximately as follows:

(1) After confirming that the pressure gauge 11 is working abnormally, the inspector confirms whether the sealing member 22 is in an undeformed relaxed state, and if the sealing member 22 is deformed, the actuator 3 can be screwed upward to restore the sealing member 22 to the relaxed state.

(2) When the sealing member 22 is in a loose state, the fixing member 6 is removed from the supporting member 21, then the pressure detecting device 10 in the container is inserted into the bottle with the pressure regulated through the bottle mouth of the bottle, the limiting member 4 is pressed on the upper end surface of the bottle mouth, at this time, the sealing member 22 and the stopping member 16 are both positioned in the bottle, after that, the actuating member 3 is quickly screwed down, the connecting member 15 drives the stopping member 16 and the pressure gauge 11 to move upwards together, and the sealing member 22 is changed into an expanded state from the loose state by the extrusion action of the stopping member 16 on the sealing member 22, so as to seal the bottle mouth.

(3) After the closure 22 has sealed the mouth of the bottle, the first clamping groove 65 of the fixing element 6 is clamped on the portion of the support element 21 between the actuating element 3 and the reinforcement element 7, and the second clamping groove 66 of the fixing element 6 is clamped under the support ring of the bottle.

(4) The reinforcement 7 is screwed up to fasten the fixing member 6 to the support member 21 so that the fixing member 6 fixes the internal pressure detecting means 10 of the container to the bottle.

(5) The readings of the pressure gauge 11 are periodically observed and recorded to obtain the detection result of the pressure change inside the bottle.

It can be seen that the container internal pressure detection device 10 of this embodiment can be placed on a bottle for a long time without damaging the bottle, and can detect the pressure change condition of the same bottled product, so as to conveniently realize accurate detection of the pressure change condition of the bottle, and the corresponding detection result can be used as one of conditions for judging whether the bottled product is qualified or not, or can be used for guiding the theoretical filling value of the bottle internal pressure.

Based on the in-container pressure detection device 10 of the foregoing embodiments, the present application also provides an in-container pressure detection system that includes a container, and further includes the in-container pressure detection device 10 of any of the embodiments of the present application. Wherein the container may be a bottle, in particular, in some embodiments, a PET bottle, in particular, a 28 gauge PET bottle. The container may be preloaded with contents prior to testing to better simulate the actual situation after market.

The foregoing description of the exemplary embodiments of the present application is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, alternatives, and alternatives falling within the spirit and scope of the utility model.

Claims (14)

1. A container internal pressure detection device (10), characterized by comprising:

the detection assembly (1) comprises a pressure gauge (11), a connecting piece (15) and a stop piece (16), wherein the connecting piece (15) is connected to the pressure gauge (11), the stop piece (16) is arranged at one end, far away from the pressure gauge (11), of the connecting piece (15), a communication hole (17) is formed in the stop piece (16), the communication hole (17) is communicated with the interior of the pressure gauge (11) through the connecting piece (15), so that after the connecting piece (15) extends into a container, the interior of the container is communicated with the interior of the pressure gauge (11), and the pressure inside the container is detected by the pressure gauge (11); and

the sealing component (2) is positioned on one side of the stop piece (16) close to the pressure gauge (11) and comprises a support piece (21) and a sealing piece (22), wherein the support piece (21) is sleeved outside the connecting piece (15) and can be arranged in a relatively moving manner with the connecting piece (15), and the sealing piece (22) is arranged on the support piece (21) so as to be extruded and deformed by the stop piece (16) in the relatively moving process of the support piece (21) and the connecting piece (15) and seal the opening of the container.

2. The in-container pressure detection device (10) according to claim 1, wherein the in-container pressure detection device (10) further comprises an actuating member (3), the actuating member (3) being movably sleeved outside the connecting member (15) and located at a side of the supporting member (21) remote from the stopper (16) to be moved closer to or farther from the supporting member (21) during movement relative to the connecting member (15) and to drive the supporting member (21) and the connecting member (15) to move relatively during approaching to the supporting member (21).

3. The device (10) according to claim 2, wherein said actuating member (3) is movably sleeved outside said connecting member (15) by being screwed with said connecting member (15).

4. A device (10) for detecting the pressure in a container according to any one of claims 1 to 3, wherein the device (10) further comprises a stopper (4), the stopper (4) being provided on the support (21) and being located on a side of the sealing member (22) remote from the stopper (16) for abutting against an end face of an opening of the container to restrict the displacement of the support (21) when the sealing member (22) is inserted into the container.

5. A device (10) for detecting the pressure in a container according to any one of claims 1 to 3, wherein the device (10) for detecting the pressure in a container further comprises fixing means (5), said fixing means (5) being adapted to fix the device (10) for detecting the pressure in a container to the container after the sealing member (22) seals the opening of the container.

6. The in-container pressure detection device (10) according to claim 5, characterized in that the fixing means (5) comprise a fixing member (6), the fixing member (6) being detachably connected to the support member (21) or the connecting member (15), and/or the fixing member (6) being adapted to be detachably connected to the container.

7. The in-container pressure detection device (10) according to claim 6, wherein the fixing member (6) is engaged with the supporting member (21) or the connecting member (15) to be detachably connected to the supporting member (21) or the connecting member (15); and/or the fixing piece (6) is used for being clamped with the container so as to be detachably connected with the container.

8. The in-container pressure detection device (10) according to claim 7, wherein the fixing member (6) comprises a first fixing portion (61) and a second fixing portion (62) connected to each other, a first clamping groove (65) is provided on the first fixing portion (61), the first clamping groove (65) is clamped with the supporting member (21) or the connecting member (15), a second clamping groove (66) is provided on the second fixing portion (62), and the second clamping groove (66) is used for clamping with the container.

9. The in-container pressure detection device (10) according to claim 6, wherein the fixing device (5) further comprises a reinforcement member (7), the reinforcement member (7) being provided on the support member (21) or the connection member (15) and fastening the fixing member (6) when the fixing member (6) is connected to the support member (21) or the connection member (15).

10. The in-container pressure detection device (10) according to claim 9, wherein the reinforcement member (7) is screwed with the support member (21) or the connection member (15).

11. A device (10) for detecting the pressure inside a container according to any one of claims 1 to 3, characterized in that said seal (22) is made of food-grade silicone.

12. A system for detecting pressure in a container, comprising a container, characterized by further comprising a device (10) for detecting pressure in a container according to any one of claims 1-11.

13. The system of claim 12, wherein the container is a bottle.

14. The in-container pressure detection system of claim 13, wherein the container is a PET bottle.

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