CN113970514B

CN113970514B - Impervious test unit

Info

Publication number: CN113970514B
Application number: CN202111600183.7A
Authority: CN
Inventors: 王曦
Original assignee: Wuxi Orient Instrument Making Co ltd; Nanjing Dongyi New Intelligent Technology Co ltd
Current assignee: Wuxi Orient Instrument Making Co ltd; Nanjing Dongyi New Intelligent Technology Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-03-11
Anticipated expiration: 2041-12-24
Also published as: CN113970514A

Abstract

The application discloses an impermeability test unit, which comprises a test die barrel and an opening and closing device, wherein the test die barrel comprises an upper envelope and a lower envelope; the upper envelope has two equilibrium states through the deformation and the recovery of the elastic piece; when the upper envelope abuts against the lower envelope, the gravity of the upper envelope is balanced with the internal stress of the elastic piece, and the test mold barrel can keep a closed state; when the upper envelope is far away from the lower envelope, the gravity of the upper envelope and the internal stress of the elastic piece can be balanced again, so that the test mould barrel is kept in an open state. Through the impervious test unit that this application provided, can simplify the mode of opening and shutting of examination mould bucket, reduce the production and the maintenance cost of equipment.

Description

Impervious test unit

Technical Field

The application relates to the field of material quality detection, in particular to a permeability resistance test unit.

Background

With the vigorous development of real estate and building engineering, the impermeability of materials is receiving wide attention. The permeability resistance tester is used for teaching in colleges and universities, sample inspection and measurement and quality inspection of air permeability of building materials.

In order to increase the number of samples tested in the same batch and thus increase the testing efficiency, a multilayer impermeability tester is available on the market. In order to save the height space of the equipment, the material receiving base of the previous layer of anti-permeability mechanism is connected with the sealing cover of the next layer of anti-permeability mechanism, so that after one-time testing is finished, the sealing covers need to be opened layer by layer to carry out feeding and discharging of samples, time and labor are wasted, the bearing and quality requirements for the laminated plates are high, the cost is high, and the equipment is easy to damage.

Disclosure of Invention

The purpose of this application is to overcome the shortcoming that exists in the prior art, provides a impervious test unit.

To achieve the above technical objects, the present application provides an impermeability test unit including: the test mould barrel is used for receiving a test block and comprises an upper envelope and a lower envelope; the device that opens and shuts, the device that opens and shuts includes: the opening and closing guide piece extends towards the direction far away from the lower envelope, and the upper envelope is arranged on the opening and closing guide piece in a sliding manner; the supporting piece is arranged on one side of the opening and closing guide piece, which is far away from the die testing barrel; the elastic piece is arranged on one side of the supporting piece, which is far away from the die testing barrel; one end of the connecting piece is connected with the elastic piece, and after the connecting piece is wound by the supporting piece, the other end of the connecting piece is connected with the upper envelope; applying a force to the upper envelope away from the lower envelope, the upper envelope being capable of moving away from the lower envelope along the opening and closing guide; the upper envelope is urged toward the lower envelope along the opening and closing guide.

Furthermore, the impermeability test unit also comprises a displacement device which is used for driving the test mold barrel to reciprocate at the test station and the loading and unloading station; the displacement device comprises a displacement guide piece, the displacement guide piece extends from the test station to the feeding and discharging station, and the test mold barrel is arranged on the displacement guide piece in a sliding mode.

Further, the opening and closing guide includes: the sliding chute is connected with the lower envelope, and the extending direction of the sliding chute is perpendicular to the extending direction of the displacement guide piece; and the sliding block is arranged in the sliding groove in a sliding manner and is connected with the upper envelope.

Furthermore, the opening and closing guide piece also comprises a rope tying block which is arranged on the sliding block and is provided with a binding groove; the connecting piece is a hauling rope, one end of which is tied on the elastic piece and the other end is tied in the tying groove.

Furthermore, the opening and closing guide piece also comprises a support frame, the support frame is connected with the lower envelope, and the sliding chute is arranged on the support frame; one of the supporting frame and the sliding groove is provided with a waist-shaped hole, the other one of the supporting frame and the sliding groove is provided with a screw hole, and the extending direction of the waist-shaped hole is parallel to the extending direction of the sliding groove.

Furthermore, the opening and closing device also comprises a support, and the support piece and the elastic piece are arranged on the support.

Further, the stand includes: the support piece is arranged on the first mounting surface; a clamping groove is formed in the second mounting surface, one end of the elastic piece is arranged in the clamping groove, and the other end of the elastic piece is connected with the connecting piece; the first mounting surface is higher than the second mounting surface.

Furthermore, the opening and closing device comprises two supporting pieces, wherein one supporting piece is arranged on the first mounting surface, and the other supporting piece is arranged on the second mounting surface; the connecting piece firstly winds through the supporting piece arranged on the second mounting surface, then winds through the supporting piece arranged on the first mounting surface and finally is connected with the upper envelope.

Further, the device that opens and shuts still includes: the first adjusting mechanism is used for adjusting the horizontal position of the bracket; and/or a second adjusting mechanism for adjusting the height of the bracket or the support.

Further, the impermeability test unit also comprises a water collecting disc which is arranged on the surface of the lower envelope, which is far away from the upper envelope, and is used for receiving the test liquid.

The application provides an impermeability test unit, which comprises a test mold barrel and an opening and closing device, wherein the test mold barrel comprises an upper seal sleeve and a lower seal sleeve, the opening and closing device comprises an opening and closing guide part, a support part, an elastic part and a connecting part, the upper seal sleeve is arranged on the opening and closing guide part in a sliding manner, one end of the connecting part is connected with the elastic part, and the other end of the connecting part is connected with the upper seal sleeve after winding through the support part; the upper envelope has two equilibrium states through the deformation and the recovery of the elastic piece; when the upper envelope abuts against the lower envelope, the gravity of the upper envelope is balanced with the internal stress of the elastic piece, and the test mold barrel can keep a closed state; when the upper envelope is far away from the lower envelope, the gravity of the upper envelope and the internal stress of the elastic piece can be balanced again, so that the test mould barrel is kept in an open state. Through the impervious test unit that this application provided, can simplify the mode of opening and shutting of examination mould bucket, reduce the production and the maintenance cost of equipment.

Drawings

FIG. 1 is a schematic structural view of an impermeability test unit provided herein;

FIG. 2 is a schematic view of the open test barrel of the anti-permeability test unit of FIG. 1;

FIG. 3 is a cross-sectional view of the cartridge of FIG. 1;

FIG. 4 is a schematic structural view of another impermeability test unit provided herein;

FIG. 5 is a schematic perspective view of the anti-permeability test cell of FIG. 4;

FIG. 6 is a schematic structural view of yet another impermeability test unit provided herein;

FIG. 7 is a schematic perspective view of the anti-permeability test cell of FIG. 6.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of 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 implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., 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; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

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. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The application provides a impervious test unit includes: the test mould barrel 10 is used for receiving the test block 1, and the test mould barrel 10 comprises an upper envelope 11 and a lower envelope 12; the opening and closing device 30, the opening and closing device 30 includes: an opening and closing guide 31 extending in a direction away from the lower envelope 12, the upper envelope 11 being slidably disposed on the opening and closing guide 31; the supporting piece 32 is arranged on one side of the opening and closing guide piece 31 far away from the test mold barrel 10; the elastic piece 35 is arranged on one side of the supporting piece 32 far away from the die testing barrel 10; and a connecting member 33, one end of the connecting member 33 being connected to the elastic member 35, and the other end of the connecting member 33 being connected to the upper envelope 11 after passing around the supporting member 32.

Wherein the internal stress of the elastic member 35 is not less than the gravity of the upper envelope 11; applying a force to the upper envelope 11 away from the lower envelope 12, the upper envelope 11 being able to move away from the lower envelope 12 along the opening and closing guide 31; the upper envelope 11 can approach the lower envelope 12 along the opening and closing guide 31 by applying a force to the upper envelope 11 toward the lower envelope 12.

Referring specifically to fig. 1 and 2, in the illustrated embodiment, the upper jacket 11 and the lower jacket 12 of the mold barrel 10 are disposed opposite to each other in a vertical direction. The lower envelope 12 is used for supporting the test block 1 and providing a stable supporting platform for the impermeability test of the test block 1. The lower end of the upper envelope 11 is open and has a cavity therein for receiving the test block 1. After the test block 1 to be tested is in place, the upper envelope 11 and the lower envelope 12 are close to each other; after the test mold barrel 10 is closed, a relatively closed environment is formed in the test mold barrel 10 so as to facilitate the impermeability test.

Wherein the opening and closing guide 31 serves to define the moving direction of the upper envelope 11, ensuring that the upper envelope 11 is accurately spaced apart from the lower envelope 12.

As will be easily understood, the test block 1 has a certain height, and after the test block 1 is placed in the lower envelope 12, the test block is protruded toward the upper envelope 11 compared with the lower envelope 12; in order to avoid the upper envelope 11 from hitting the test block 1 when approaching or departing from the lower envelope 12, the upper envelope 11 is preferably moved in a direction perpendicular to the receiving surface of the lower envelope 12 for receiving the test block 1. For example, in the embodiment shown in fig. 1 and 2, the receiving surface of the lower casing 12 is a horizontal surface, and the opening and closing guide 31 is preferably disposed in a vertical direction.

The opening and closing guide 31 may be any member capable of guiding, such as a guide rod, a guide rail, a slide groove, and the like; the opening and closing guide 31 can define a moving direction of the upper envelope 11 so that the upper envelope 11 is accurately moved toward or away from the lower envelope 12.

The elastic member 35 may be a spring, or may be a structure made of an elastic material such as rubber. The elastic member 35 has the characteristics of being deformed by force and being restored to the original state, the internal stress of the elastic member 35, that is, the elastic force of the elastic member 35, and the elastic member 35 has the internal stress in the deformation and restoration processes.

Because one end of the connecting piece 33 is connected with the elastic piece 35, and the other end is connected with the upper envelope 11, the internal stress of the elastic piece 35 is regulated, so that the stress of the upper envelope 11 is balanced (the self-gravity of the upper envelope 11 and the tensile force of the connecting piece 33 on the upper envelope 11 are balanced). When the upper envelope 11 is in the balanced state, the upper envelope 11 can stably cover the lower envelope 12, so that the test mold barrel 10 is in the closed state; but also stably suspended above the lower envelope 12 so that the test bucket 10 is in an open state.

It is easy to understand that under the condition of not being disturbed by external force, the upper envelope 11 can keep a balanced state so as to be convenient for the test block 1 to be sealed by the test mould barrel 10 and to carry out the impermeability test, or be convenient for the test block 1 to get in and out of the test mould barrel 10 and to carry out loading and unloading.

Further, when the state of the test mold barrel 10 needs to be changed, a force can be applied to the upper envelope 11 manually or mechanically, after the upper envelope 11 is stressed, the balance state of the upper envelope 11 is damaged, and the upper envelope 11 can move along with the force under the influence of inertia; when the upper envelope 11 abuts against the lower envelope 12, the displacement of the upper envelope 11 is limited, and the upper envelope 11 can restore the balanced state; alternatively, when the upper envelope 11 moves to the limit position of the opening and closing guide 31, the displacement of the upper envelope 11 is limited and the upper envelope 11 can be restored to the balanced state.

Furthermore, when the internal stress of the elastic member 35 approaches the gravity of the upper envelope 11, the displacement of the upper envelope 11 is relatively slow, which is beneficial to the safety of the device.

To ensure that the test mold barrel 10 can be opened efficiently by the action of external force, the internal stress of the elastic member 35 is not less than the gravity of the upper envelope 11.

In one embodiment, referring to fig. 1 and 2, when the mold barrel 10 is in the closed state, the elastic member 35 is in a stretched state, and the internal stress of the elastic member 35 is balanced with the gravity of the upper envelope 11; applying an upward force to the upper envelope 11, the upper envelope 11 moves vertically upward along the opening and closing guide 31, away from the lower envelope 12, and at this time, the elastic member 35 is gradually restored; when the upper envelope 11 moves to the extreme position of the opening and closing guide 31, or the internal stress of the elastic member 35 is balanced with the gravity of the upper envelope 11 again, the upper envelope 11 can be maintained in a state of being separated from the lower envelope 12; the internal stress of the elastic member 35 is regulated and controlled to ensure that the test mold barrel 10 is in an open state when the upper envelope 11 is kept away from the lower envelope 12, and the test block 1 can be loaded and unloaded. When the test mold barrel 10 needs to be closed again, a downward force is applied to the upper envelope 11, the upper envelope 11 moves vertically downwards along the opening and closing guide 31 and approaches the lower envelope 12, and at the moment, the elastic piece 35 is gradually stretched; when the upper envelope 11 moves to abut against the lower envelope 12, or the internal stress of the elastic member 35 is balanced with the gravity of the upper envelope 11 again, the upper envelope 11 can be maintained in a state of being close to the lower envelope 12; the internal stress of the elastic member 35 is regulated to ensure that the test bucket 10 is in the closed state when the upper envelope 11 is kept close to the lower envelope 12.

Optionally, the support 32 is higher than the lower envelope 12; when the molding barrel 10 is in the closed state, the connecting member 33 is lower than the supporting member 32 around both ends of the supporting member 32. At this time, the connecting member 33 has a wrap angle on the supporting member 32, and the wrap angle portion can press the supporting member 32 so that the supporting member 32 stably supports the connecting member 33.

Optionally, the surface of the supporting member 32 for contacting the connecting member 33 is a circular arc surface, so as to facilitate the wrapping angle of the connecting member 33 when passing through the supporting member 32 and to facilitate the movement of the connecting member 33 relative to the supporting member 32.

Alternatively, the supporting member 32 is rotatably disposed on a side of the opening and closing guide 31 away from the test mold barrel 10. It can be seen that when the upper envelope 11 moves along the opening and closing guide 31, the elastic member 35 will deform or recover, and the connecting member 33 will be pulled toward the test barrel 10 or toward the elastic member 35; so that the supporting member 32 can rotate around the shaft, and when the connecting member 33 moves relative to the supporting member 32, the supporting member 32 can reduce the friction between the supporting member and the connecting member 33 through rotation, thereby being beneficial to the movement of the connecting member 33 and avoiding the abrasion of the connecting member and the connecting member. The supporting member 32 may be a roller or a roller.

Alternatively, the coupling element 33 is a pulling rope, the rope-like coupling element 33 facilitating the wrapping around the support element 32 to obtain the wrap angle.

Alternatively, the hauling cable is made of steel wire, which can ensure the strength of the connecting piece 33.

Further, a sealing bag 11a is arranged in the upper envelope 11, and a sealing cavity is arranged in the sealing bag 11 a; the upper envelope 11 is provided with an air port 11b, and the air port 11b is communicated with the sealing cavity; after the test block 1 to be tested is placed into the test mold barrel 10, the upper seal sleeve 11 and the lower seal sleeve 12 are close to each other along with the movement of the test mold barrel 10 to a test station, the sealed cavity is inflated through the air port 11b after the test mold barrel 10 is closed, and the sealed bag 11a can contact the test block 1 after being expanded.

The sealing bag 11a can be made of flexible materials such as rubber and plastic.

In one embodiment, referring to FIG. 3, a sealed cavity is formed between the capsule 11a and the upper envelope 11. In another embodiment, a sealed chamber is formed between the sealed bladders 11a, in which case the sealed bladders 11a resemble a tire.

After the test barrel 10 is closed, the air supply device (not shown) inflates the sealed cavity through the air port 11b, and as the air continuously enters the sealed capsule 11a, the sealed capsule 11a gradually bulges and presses the test block 1. On one hand, the bulged sealing bag 11a can fix the test block 1, so that the test block 1 is prevented from moving; on the other hand, the swollen sealing bag 11a can occupy the redundant space in the test mold barrel 10, thereby avoiding the test liquid from overflowing from the non-test part and influencing the detection result.

Further, the upper envelope 11 is provided with a detection port 11c for installing a detection sensor.

Wherein the detection sensor may be a humidity sensor. The working end of the humidity sensor passes through the detection port 11c and can detect the environment in the die testing barrel 10. In the impermeability test, the test liquid enters the test barrel 10 and acts on the test block 1. When the injection pressure of the test liquid is greater than the permeation resistance pressure of the test block 1, the test liquid seeps from the surface of the test block 1. After the working end of the humidity sensor is contacted with the test liquid, the voltage fluctuates and generates an electric signal, and the electric signal is transmitted to the control system, so that the anti-seepage pressure of the test block 1 is obtained.

In one embodiment, the active end of the humidity sensor contacts the test block 1. In another embodiment, a gap is formed between the working end of the humidity sensor and the test block 1. Optionally, the distance between the working end of the humidity sensor and the test block 1 is adjustable, so as to meet the detection requirement according to actual conditions.

Further, the lower envelope 12 is provided with a water inlet 12 a; when the test block 1 is subjected to the impermeability test, the test liquid acts on the test block 1 through the water inlet 12 a.

When the test block 1 is placed on the lower envelope 12, the test block 1 is placed on the water inlet 12 a. The test liquid gradually permeates the test block 1 from bottom to top.

The impervious test unit that this application provided still includes displacement device 20 for order about the mould section of thick bamboo 10 at test station and unloading station reciprocating motion. Reference may be made to fig. 4 and 5 in particular.

It should be explained that in the conventional impermeability apparatus, the position of the test mold barrel in the frame is fixed. Generally, the lower envelope of the test mold barrel is fixedly arranged on a station, and the upper envelope can move up and down; the upper envelope is enabled to move upwards and can be far away from the lower envelope so as to facilitate loading and unloading of the test block; so that the upper envelope moves downwards and can approach the lower envelope so as to form a closed test space.

For this reason, in the conventional impermeability tester, when the test mold barrel is disposed in the rack, a movable space needs to be reserved above the test mold barrel to facilitate the movement of the upper envelope. Further, when being provided with two-layer test mould bucket even more multilayer in the frame, need reserve the activity space for every layer of test mould bucket, also make the size of whole impervious appearance upper and lower direction too big.

In order to reduce the size of the anti-permeability instrument in the vertical direction, a multi-layer anti-permeability instrument appears on the market, and a test mold barrel can be opened layer by layer. Specifically, the first layer of mold testing barrel located above has a movable space, but the upper envelope of the second layer of mold testing barrel adjacent to the first layer of mold testing barrel is connected with the first layer of mold testing barrel, so that when the second layer of mold testing barrel is opened, the upper envelope of the second layer of mold testing barrel needs to be far away from the corresponding lower envelope through the movement of the first layer of mold testing barrel. Similarly, the last big envelope of third layer examination mould bucket links to each other with second floor examination mould bucket, when opening third layer examination mould bucket, need through the removal of first layer examination mould bucket and second floor examination mould bucket, make the last big envelope of third layer examination mould bucket keep away from corresponding lower big envelope … … and so on, when opening last layer examination mould bucket, need remove through the multilayer examination mould bucket of its top, just can make the last big envelope of last layer examination mould bucket keep away from corresponding lower big envelope.

As can be easily understood, in order to ensure the precision and the strength of the equipment and ensure the reliability of the impermeability test, the quality of the test mould barrel is larger. When a plurality of test mold barrels are arranged on each layer, the test mold barrels on one layer are enabled to translate along the vertical direction, and the whole rack and a device for driving the upper sealing cover to move are relatively high in load; thus, to move multiple tiers of mold drums simultaneously, higher quality requirements are placed on the configuration of the racks, the materials, the supports … … between each tier, and the output performance of the drive mechanism, which increases the cost of the apparatus.

The impervious test unit that this application provided can solve above-mentioned problem through setting up displacement device 20, making examination mould bucket 10 possess the work station of two different positions.

Specifically, after completing the impermeability test of a test block 1, the displacement device 20 drives the test mold barrel 10 to leave the test station and reach the loading and unloading station. The test station is generally located in the frame, when the test mold barrel 10 is located at the test station, structures such as a laminate, a frame shell and anti-permeability test related equipment can exist above the test mold barrel, the loading and unloading station is far away from the test station, and after the test mold barrel 10 reaches the loading and unloading station, other structures do not exist above the test mold barrel, so that the upper envelope 11 is beneficial to being far away from the lower envelope 12. Therefore, the opening of the test mold barrel 10 is not interfered by structures such as a middle layer plate and a shell of the impermeability instrument, so that the movable space does not need to be reserved, and the size of the impermeability instrument in the vertical direction can be effectively reduced.

When being provided with two-layer at least examination mould bucket 10 in the impervious appearance, through setting up displacement device 20, opening and closed mutually noninterfere of each layer examination mould bucket 10 no longer need the motion of upper strata examination mould bucket 10 to realize opening and shutting of lower floor's examination mould bucket. Thus, the equipment cost can be further reduced.

In order to avoid the displacement motion interfering with the opening and closing of the molding barrel 10, in one embodiment, the displacement device 20 is connected to the lower envelope 12, and the opening and closing guide 31 is also connected to the lower envelope 12 (the opening and closing guide 31 can be directly disposed on the lower envelope 12, or can be indirectly connected to the lower envelope 12 through a plate, block or the like connected to the lower envelope 12). So, after impervious test is accomplished to a test block 1, displacement device 20 drove down big envelope 12, drive the guide 31 that opens and shuts and move towards last unloading station, receives the restriction of the guide 31 that opens and shuts, and last big envelope 11 is followed big envelope 12 and is gone up unloading station motion towards down.

It should be added that, in the process that the upper envelope 11 moves towards the loading and unloading station along with the lower envelope 12, the upper envelope 11 gradually leaves away from the testing station, the connecting member 33 is driven to gradually leave away from the elastic member 35, the elastic member 35 is stretched, and the internal stress of the elastic member 35 is increased. In some cases, as the internal stress of the elastic member 35 increases, the reverse force of the elastic member 35 applied to the connection member 33 can pull the upper envelope 11 so that the upper envelope 11 is away from the lower envelope 12 along the opening and closing guide 31. At this time, the test mold barrel 10 moves towards the loading and unloading station and is opened at the same time, so that the working efficiency can be improved.

In one embodiment, the test block 1 is a concrete block and the test liquid is clean water. The test mould barrel 10 reaches a test station, and the gas supply device pressurizes to enable the sealing bag 11a to be tightly attached to the test block 1; starting the impermeability test, continuously injecting water into the water inlet 12a by a liquid supply device (not shown), and gradually permeating the test block 1 with the increase of water pressure; when the water pressure is greater than the anti-seepage pressure of the test block 1, water seeps out of the surface of the test block 1; after the humidity sensor detects the moisture, the control system knows the anti-seepage pressure of the test block 1; after the impermeability test is finished, stopping water injection of the liquid supply device, and relieving pressure of the gas supply device; the displacement device 20 drives the test mould barrel 10 to leave the test station, and the connecting piece 33 is stretched along with the upper envelope 11 away from the elastic piece 35 and the elastic piece 35; when the displacement distance of the upper envelope 11 is far enough, the elastic member 35 can actively pull the upper envelope 11 away, so that the test mold barrel 10 is opened; after the mold testing barrel 10 reaches the loading and unloading station, if the mold testing barrel 10 is not completely opened, a force far away from the lower envelope 12 is applied to the upper envelope 11 manually or mechanically, and the upper envelope 11 can ascend along the opening and closing guide piece 31 until the mold testing barrel 10 is opened; taking out the test block 1 which is tested, and replacing the test block 1 with a new test block to be tested; manually or mechanically applying a force to the upper envelope 11 towards the lower envelope 12, the upper envelope 11 can descend along the opening and closing guide 31, meanwhile, the displacement device 20 drives the test mold barrel 10 to leave the loading and unloading station, and the connecting piece 33 gradually recovers along with the upper envelope 11 approaching to the elastic piece 35 and the elastic piece 35; at the test station, the mold barrel 10 is closed.

As can be seen from the above embodiments, in some cases, for example, when the distance between the loading and unloading station and the testing station is long enough, in the process of the test mold barrel 10 moving to the loading and unloading station, the elastic member 35 can actively pull up the upper envelope 11 along with the deformation of the elastic member 35 and the increase of the internal stress; similarly, in the process that the test mold barrel 10 is displaced to the test station, the upper envelope 11 can actively descend along with the recovery of the elastic member 35 and the reduction of the internal stress, and finally the lower envelope 12 is covered tightly.

Therefore, when the impermeability test unit provided by the application comprises the opening and closing device 30 and the displacement device 20, the opening and closing of the test mold barrel 10 can be realized by applying external force, and the opening and closing of the test mold barrel 10 can be realized by the displacement of the test mold barrel 10.

In other embodiments, the test block 1 may be made of other materials to be tested, and the test liquid may be other liquids meeting the requirements of the test.

When the mold testing barrel 10 needs to be displaced, in order to facilitate the connection of the gas supply device and the liquid supply device to the mold testing barrel 10, the gas supply device and/or the liquid supply device can be connected to the detection port 11c or the water inlet 12a through a hose.

The present application does not limit the specific configuration of the displacement device 20, and the displacement device 20 may be an automatic driving device (such as a cylinder, a module, etc.) or a manual driving device (such as a push-pull device similar to a drawer).

In order to ensure that the test mold barrel 10 can reciprocate along a uniform and accurate path, the displacement device 20 comprises a displacement guide 21, the displacement guide 21 extends from the test station to the loading and unloading station, and the test mold barrel 10 is slidably arranged on the displacement guide 21.

The displacement guide 21 may be any member capable of guiding, such as a guide rod, a guide rail, a sliding groove, etc.; the displacement guide 21 can limit the moving direction of the test mold barrel 10, so that the test mold barrel 10 can accurately reach the test station or the loading and unloading station

Further, in order to ensure that the upper envelope 11 is accurately separated from the lower envelope 12 during the opening of the test mold barrel 10, the extending direction of the opening and closing guide 31 is perpendicular to the extending direction of the displacement guide 21.

In one embodiment, the opening and closing guide 31 includes: a slide groove 31a, an extending direction of the slide groove 31a being perpendicular to an extending direction of the displacement guide 21; and a slider 31b slidably disposed in the sliding groove 31a and connected to the upper envelope 11.

Referring specifically to fig. 2, 4 and 6 in combination, in the illustrated embodiment, the displacement guide 21 is a guide rail extending in the left-right direction; the opening and closing guide 31 includes a slide groove 31a and a slider 31b, the slide groove 31a extends in the up-down direction, and the slider 31b is disposed in the slide groove 31a and can move in the up-down direction along the slide groove 31 a.

Since the upper envelope 11 has a certain mass, in order to ensure the guiding stability of the opening and closing guide 31, the opening and closing guide 31 includes two sliding grooves 31a, and a sliding block 31b is arranged in any sliding groove 31 a; referring specifically to fig. 5 in combination, the upper envelope 11 is generally cylindrical, and therefore, the two sliding grooves 31a are spaced apart in a circumferential direction (the center of the circumference is located on the central axis of the upper envelope 11) so that the two sliding blocks 31b are efficiently connected to the upper envelope 11.

With reference to fig. 2 and 5, in order to facilitate the connection of the two sliders 31b to the upper envelope 11, the opening and closing guide 31 further includes a V-shaped connecting plate 36, the V-shaped connecting plate 36 includes two connecting portions arranged in a V-shape, one end of the two connecting portions is fixedly connected to the top of the upper envelope 11 away from the lower envelope 12, and one end of the two connecting portions away from each other is connected to one slider 31 b.

Since the top of the upper envelope 11 is a plane and the sliding block 31b moves in the vertical direction, in order to better connect the sliding block 31b, one end of any connecting part close to the sliding block 31b is also provided with an auxiliary connecting part 37, the extending direction of the auxiliary connecting part 37 is perpendicular to the connecting part, and the auxiliary connecting part 37 can be attached to the surface of the sliding block 31b to realize the connection of the V-shaped connecting plate 36 and the sliding block 31 b.

Since the connection portion extends toward the slider 31b, in order to ensure the stability of the connection portion with the upper envelope 11, the opening and closing guide 31 further includes a support portion 38, one side of the support portion 38 is connected to the arc-shaped side surface of the upper envelope 11, and the other side is connected to the lower surface of the connection portion.

When the connecting piece 33 is a traction rope, in order to facilitate the traction rope to connect the upper envelope 11, the opening and closing guide piece 31 further comprises a rope tying block 31c arranged on the sliding block 31b, and a tying groove is formed in the rope tying block 31 c; one end of the hauling rope is fixedly arranged at one side of the testing station, and the other end of the hauling rope is tied on the tying groove.

Referring specifically to fig. 2 and 5, in the illustrated embodiment, the tether block 31c is disposed on a side of the slider block 31b away from the V-shaped connecting plate 36, and the tying groove is i-shaped. When the hauling rope is tied on the tying groove, the hauling rope can be wound in the tying groove, and the connection stability of the hauling rope is facilitated.

Optionally, the opening and closing guide 31 further includes a support frame 31d, and the chute 31a is disposed on the support frame 31 d; one of the support frame 31d and the sliding chute 31a is provided with a waist-shaped hole, the other is provided with a screw hole, and the extending direction of the waist-shaped hole is parallel to the extending direction of the sliding chute 31 a.

The height of the slide groove 31a can be adjusted by providing the kidney-shaped hole and the screw hole. Specifically, the sliding groove 31a is moved in the height direction, and the screw hole is exposed in the kidney-shaped hole, and after the sliding groove 31a is moved to a desired height, the screw is screwed into the screw hole from the kidney-shaped hole, so that the sliding groove 31a can be fixed.

By adjusting the height of the sliding chute 31a, the opening and closing requirements of the test mold barrel 10 can be met.

Optionally, the displacement device 20 further comprises a displacement driving member (not shown) connected to the test mold barrel 10 and capable of driving the test mold barrel 10 to move along the displacement guide 21; the displacement driving member can be a driving member such as a cylinder, a module and the like.

Optionally, the displacement device 20 further comprises a handle connected to the lower envelope 12; when the test barrel 10 is moved, the force is applied to the handle, so that the test barrel 10 moves along the displacement guide 21.

The handle can be directly disposed on the lower envelope 12, and can also be indirectly connected to the lower envelope 12 through a plate, a block or the like connected to the lower envelope 12, as long as an operator can pull or push the lower envelope 12 to move the lower envelope 12 along the displacement guide 21 when applying force to the handle.

The handle design facilitates operator movement of the mold testing barrel 10.

To facilitate the installation of the supporting member 32, the opening and closing device 30 further includes a bracket 34, and the supporting member 32 and the elastic member 35 are disposed on the bracket 34.

In one embodiment (not shown), the bracket 34 includes a first mounting portion and a second mounting portion, the height of the first mounting portion is greater than that of the second mounting portion, the supporting member 32 is disposed on the first mounting portion, the elastic member 35 is disposed on the second mounting portion, one end of the connecting member 33 is connected to the elastic member 35, and the other end of the connecting member is connected to the upper envelope 11 after passing through the supporting member 32; the supporting member 32 is higher than the end of the connecting member 33 connected to the elastic member 35; when the mold testing barrel 10 is in a closed state, the supporting member 32 is also higher than one end of the connecting member 33 connected with the upper envelope 11; as the upper envelope 11 is gradually spaced apart from the lower envelope 12, the end of the connecting member 33 connected to the upper envelope 11 is continuously raised.

In another embodiment, the support 34 is a unitary body, and the support 34 is uneven, such that the support 34 has a high point position and a low point position.

For example, referring to fig. 1, 2, 4 and 5, the surface of the bracket 34 facing away from the testing station is an inclined surface, and the height of the inclined surface gradually decreases from the loading and unloading station to the testing station; the highest point of the inclined plane is provided with a first mounting surface 34a, and the support piece 32 is arranged on the first mounting surface 34 a; the lowest point of the slope is provided with a second mounting surface 34b, and the elastic piece 35 is arranged on the second mounting surface 34 b.

At this moment, the elastic part 35 is obliquely arranged, the part of the connecting part 33 between the elastic part 35 and the supporting part 32 gradually rises towards the loading and unloading station, the surface departing from the testing station through the support 34 is an inclined surface, the interference of the connecting part 33 on the surface of the support 34 can be avoided, and the stable state and the stress balance of the connecting part 33 can be guaranteed.

For another example, referring to fig. 6 and 7, the bracket 34 includes a first mounting surface 34a and a second mounting surface 34b that are vertically disposed, the first mounting surface 34a is higher than the second mounting surface 34b, the stay 32 is disposed on the top of the first mounting surface 34a, and the elastic member 35 is disposed on an end portion of the second mounting surface 34b away from the first mounting surface 34 a.

Optionally, the second mounting surface 34b is provided with a slot 34 c; one end of the elastic member 35 is disposed in the engaging groove 34c, and the other end is connected to the connecting member 33.

Specifically, referring to fig. 2 and 5, in the illustrated embodiment, the elastic member 35 is a spring, and hooks are disposed at two ends of the spring, so that one hook is clamped into the clamping groove 34c, the elastic member 35 is connected to the bracket 34, and one end of the connecting member 33 is tied to the other hook, so that the elastic member 35 is connected to the connecting member 33.

Optionally, the opening and closing device 30 includes two supporting members 32, wherein one supporting member 32 is disposed on the first mounting surface 34a, and the other supporting member 32 is disposed on the second mounting surface 34 b; the connecting member 33 is wound around the supporting member 32 disposed on the second mounting surface 34b, then wound around the supporting member 32 disposed on the first mounting surface 34a, and finally connected to the upper casing 11.

Referring to fig. 6 in particular, in the illustrated embodiment, the second mounting surface 34b extends horizontally, the elastic member 35 is disposed at an end of the second mounting surface 34b far away from the first mounting surface 34a, and the elastic member 35 is disposed horizontally; a supporting member 32 is arranged at the position of the second installation surface 34b close to the first installation surface 34a, and after the connecting member 33 is wound around the supporting member 32, the connecting member 33 between the supporting member 32 and the elastic member 35 extends horizontally; the other support member 32 is positioned on top of the first mounting surface 34a, the support member 32 being higher than the other support member 32 and the elastic member 35. The connection member 33 connected to the elastic member 35 is wound around the lower supporting member 32 to form a horizontally extending section, and then wound around the upper supporting member 32 to form a first inclined section, and finally connected to the upper envelope 11 to form a second inclined section. When the horizontal extension section pulls the elastic part 35, the elastic part 35 can deform along the horizontal direction, so that the influence of external forces such as self weight on the change of the internal stress of the elastic part 35 is reduced; the two inclined sections facilitate the transfer and balancing of forces.

It should be added that the application does not limit the number of supports 32 in the opening and closing device 30; for example, in the embodiment shown in fig. 1 and 5, the shutter device 30 comprises only one support 32; for another example, in the embodiment shown in fig. 7, the opening and closing device 30 includes two supporting members 32. The opening and closing means 30 may further comprise more supports 32 according to the length of the connecting member 33, the direction of the tape, the movement needs of the upper envelope 11, etc.

Optionally, the opening and closing device 30 further comprises a first adjusting mechanism for adjusting the horizontal position of the bracket 34.

The first adjusting mechanism can be an automatic adjusting device (such as an air cylinder, an electric cylinder and the like) or a manual adjusting device (such as a micrometer, a waist-shaped hole, a screw hole and the like).

The first adjusting mechanism can adjust the bracket 34 to be close to or far away from the loading and unloading station, so as to adjust and control the corresponding relation between the movement of the upper envelope 11 and the deformation of the elastic piece 35. Alternatively, the first adjusting mechanism can adjust any position of the bracket 34 in the horizontal plane so as to satisfy the displacement and opening and closing movement of the mold testing barrel 10.

Optionally, the opening and closing device 30 further comprises a second adjusting mechanism for adjusting the height of the bracket 34 or the support 32.

The second adjusting mechanism can be an automatic adjusting device (such as an air cylinder, an electric cylinder and the like) or a manual adjusting device (such as a micrometer, a waist-shaped hole, a screw hole and the like).

The height of the support 34 can be adjusted by arranging a second adjusting mechanism, so that the height of the support 32 can be adjusted; of course, the second adjusting mechanism is directly connected to the supporting member 32, so that the height of the supporting member 32 can be adjusted. By adjusting the height of the supporting member 32, the correspondence between the movement of the upper envelope 11 and the deformation of the elastic member 35 can be adjusted.

Alternatively, the impermeability test unit provided herein comprises two sets of opening and closing devices 30.

Referring to fig. 5 and 7, each set of opening and closing device 30 includes an opening and closing guide 31, a support 32, a connecting member 33, a bracket 34, and an elastic member 35, and facilitates the opening and closing of the test mold barrel 10 by the translation of the test mold barrel 10 through double traction and guidance.

Optionally, the impermeability test unit provided by the present application further comprises a water tray 40, provided on the surface of the lower envelope 12 facing away from the upper envelope 11, for receiving the test liquid.

Wherein, the water tray 40 can be fixedly connected with the lower envelope 12 and can reciprocate between a testing station and a loading and unloading station along with the lower envelope 12.

It is easily understood that, when the impermeability test is performed, the test liquid is introduced into the test tub, and generally, after the impermeability test is performed by the liquid supply device, the test liquid is withdrawn, but a gap may be formed at a connection portion of the pipe and the lower envelope 12, resulting in liquid overflow. Alternatively, when the test bucket 10 is opened, the test liquid may flow out of the lower envelope 12. The water accumulation disc 40 can receive test liquid, and the influence of the overflow of the test liquid on the whole anti-permeability instrument is avoided.

Optionally, the drip tray 40 communicates with a drain to enable timely or timed drainage of the test liquid from the drip tray 40.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An impermeability test unit, comprising:

the test mould barrel (10) is used for receiving the test block (1), and the test mould barrel (10) comprises an upper envelope (11) and a lower envelope (12);

an opening and closing device (30), the opening and closing device (30) comprising:

the opening and closing guide piece (31) extends towards the direction far away from the lower envelope (12), and the upper envelope (11) is arranged on the opening and closing guide piece (31) in a sliding mode;

the supporting piece (32) is arranged on one side, far away from the test mold barrel (10), of the opening and closing guide piece (31);

the elastic piece (35) is arranged on one side, away from the die testing barrel (10), of the supporting piece (32), and the internal stress of the elastic piece (35) is not smaller than the gravity of the upper envelope (11);

one end of the connecting piece (33) is connected with the elastic piece (35), and after the connecting piece is wound around the supporting piece (32), the other end of the connecting piece (33) is connected with the upper envelope (11);

-applying a force to said upper envelope (11) away from said lower envelope (12), said upper envelope (11) being able to move away from said lower envelope (12) along said opening and closing guides (31);

-applying a force on the upper envelope (11) towards the lower envelope (12), the upper envelope (11) being able to approach the lower envelope (12) along the opening and closing guide (31).

2. The impermeability test unit of claim 1 further comprising a displacement device (20) for driving the mold barrel (10) to reciprocate between a testing station and a loading and unloading station;

the displacement device (20) comprises a displacement guide part (21), the displacement guide part (21) extends from the test station to the feeding and discharging station, and the test mold barrel (10) is arranged on the displacement guide part (21) in a sliding mode.

3. The impermeability test unit according to claim 2, wherein the opening and closing guide (31) comprises:

a chute (31 a) connected to the lower envelope (12), the chute (31 a) extending in a direction perpendicular to the direction of extension of the displacement guide (21);

and the sliding block (31 b) is arranged in the sliding groove (31 a) in a sliding manner and is connected with the upper envelope (11).

4. The impermeability test unit according to claim 3, wherein the opening and closing guide (31) further comprises a lacing block (31 c) provided on the slider (31 b), the lacing block (31 c) being provided with a tying groove;

the connecting piece (33) is a pulling rope, one end of the pulling rope is tied on the elastic piece (35), and the other end of the pulling rope is tied in the binding groove.

5. The impermeability test unit according to claim 3, wherein the opening and closing guide (31) further comprises a support frame (31 d), the support frame (31 d) being connected to the lower envelope (12), the chute (31 a) being provided on the support frame (31 d);

one of the support frame (31 d) and the sliding groove (31 a) is provided with a waist-shaped hole, the other one of the support frame and the sliding groove is provided with a screw hole, and the extending direction of the waist-shaped hole is parallel to the extending direction of the sliding groove (31 a).

6. The impermeability test unit of claim 1, wherein the opening and closing device (30) further comprises a bracket (34), the support (32) and the elastic element (35) being provided on the bracket (34).

7. The impermeability test unit of claim 6, wherein the bracket (34) comprises:

a first mounting surface (34 a), the support member (32) being provided to the first mounting surface (34 a);

a second mounting surface (34 b), wherein a clamping groove (34 c) is formed in the second mounting surface (34 b), one end of the elastic piece (35) is arranged in the clamping groove (34 c), and the other end of the elastic piece is connected with the connecting piece (33);

the first mounting surface (34 a) is higher than the second mounting surface (34 b).

8. The impermeability test unit according to claim 7, wherein the opening and closing means (30) comprises two of the supports (32), one of the supports (32) being provided on the first mounting surface (34 a), the other support (32) being provided on the second mounting surface (34 b);

the connecting piece (33) firstly passes through the supporting piece (32) arranged on the second mounting surface (34 b), then passes through the supporting piece (32) arranged on the first mounting surface (34 a), and finally is connected with the upper envelope (11).

9. The impermeability test unit of claim 6, wherein the opening and closing device (30) further comprises:

a first adjustment mechanism for adjusting the horizontal position of the bracket (34);

and/or a second adjustment mechanism for adjusting the height of the bracket (34) or the support (32).

10. The impermeability test unit according to any of claims 1-9, further comprising a water tray (40) provided on a surface of the lower envelope (12) facing away from the upper envelope (11) for receiving a test liquid.