1. An aging test apparatus for a rubber product, comprising:

the aging test box comprises an aging test box body and a placing plate matched with the aging test box body, wherein the side surface of the placing plate is contacted with the inner side wall of the aging test box body, the upper surface of the placing plate is provided with a placing groove, the bottom of the placing groove is internally provided with an inner cavity, the top surface of the inner cavity is provided with an upper through hole communicated with the placing groove, and the bottom surface of the inner cavity is provided with a lower through hole penetrating through the lower surface of the placing plate;

the supporting rods are positioned in the placing groove, and two ends of each supporting rod are connected to the side wall of the placing groove and used for supporting the rubber product;

the limiting block is arranged on the inner side wall of the aging test box body and used for supporting the placing plate;

in the aging test box body, an upper cavity is positioned above the upper surface of the placing plate, a lower cavity is positioned below the lower surface of the placing plate, an inlet, an outlet and a communicating hole are formed in the inner wall of the aging test box body, the inlet is positioned in the lower cavity and is communicated with the oxygen box, the outlet and the communicating hole are both positioned in the upper cavity, and the outlet is communicated with the getter pump;

the adjusting part is provided with a first state and a second state, and is in the first state after the placing plate is supported by the limiting block, and the upper through hole is communicated with the lower through hole; after the placing plate is far away from the limiting block, the adjusting part is in a second state, and the upper through hole is isolated from the lower through hole.

2. An aging test apparatus for a rubber product according to claim 1, wherein said adjusting portion comprises:

the supporting block is fixed on the side wall of the inner cavity, the inner plate is provided with a through hole penetrating through the upper surface and the lower surface of the inner plate, and the positions of the through hole and the upper through hole are completely staggered;

the air cylinder is fixed at the bottom in the aging test box body, and an output shaft of the air cylinder penetrates through a shaft hole formed in the lower surface of the placing block and is fixedly connected with the inner plate;

when the adjustment portion is in the first state, the inner plate is in contact with the brace and the inner plate is disengaged from the top surface of the inner cavity, and when the adjustment portion is in the second state, the inner plate is disengaged from the brace and the inner plate is in contact with the top surface of the inner cavity.

3. The aging test device for the rubber products as claimed in claim 2, characterized in that the device comprises an isolation sleeve, the output shaft of the air cylinder is positioned in the isolation sleeve, one end of the isolation sleeve is fixed at the inner bottom of the aging test chamber, the other end of the isolation sleeve is fixed at the lower surface of the inner plate, and the isolation sleeve is made of corrugated pipe.

4. The apparatus of claim 1, further comprising a spring disposed in the lower chamber, wherein one end of the spring is fixed to the lower surface of the placement block, and the other end of the spring is fixed to the bottom of the aging test chamber.

5. The aging test device for rubber products as claimed in claim 1, wherein the aging test device comprises an air pump and a nozzle communicated with the air pump, the stay bar is composed of a plurality of V-shaped grooves for placing samples, and a plurality of nozzles are arranged on the side surfaces of the V-shaped grooves.

6. An aging test device for rubber products as claimed in claim 5, wherein the bottom of said V-shaped groove is provided with a through opening.

Background

Aging is one of the main causes of the deterioration of rubber properties. Since the aging process is different due to different formulas and use conditions of the product, the aging process needs to be measured and evaluated through an aging test to evaluate the aging degree of the rubber and the influence of the aging degree on the performance. Wherein, the oxygen aging test time sample is placed in an aging test box, oxygen is filled in the aging test box, the aging test box is tested under heating and pressurizing, and after the test is finished and is placed at room temperature for a period of time, the performance change before and after the test is compared.

The applicant found that: after the aging test is finished, the box cover is generally directly opened, and a sample is taken out, so that residual oxygen in the box body can directly enter the atmosphere and cannot be recycled.

Disclosure of Invention

In view of this, an object of one or more embodiments of the present disclosure is to provide an aging test apparatus for rubber products, so as to solve the technical problem in the prior art that after an aging test is completed, a box cover is generally directly opened, a sample is taken out, and thus oxygen remaining inside the box body directly enters the atmosphere and cannot be recycled.

In view of the above, one or more embodiments of the present specification provide an aging test apparatus for a rubber product, including:

the aging test box comprises an aging test box body and a placing plate matched with the aging test box body, wherein the side surface of the placing plate is contacted with the inner side wall of the aging test box body, the upper surface of the placing plate is provided with a placing groove, the bottom of the placing groove is internally provided with an inner cavity, the top surface of the inner cavity is provided with an upper through hole communicated with the placing groove, and the bottom surface of the inner cavity is provided with a lower through hole penetrating through the lower surface of the placing plate;

the supporting rods are positioned in the placing groove, and two ends of each supporting rod are connected to the side wall of the placing groove and used for supporting the rubber product;

the limiting block is arranged on the inner side wall of the aging test box body and used for supporting the placing plate;

in the aging test box body, an upper cavity is positioned above the upper surface of the placing plate, a lower cavity is positioned below the lower surface of the placing plate, an inlet, an outlet and a communicating hole are formed in the inner wall of the aging test box body, the inlet is positioned in the lower cavity and is communicated with the oxygen box, the outlet and the communicating hole are both positioned in the upper cavity, and the outlet is communicated with the getter pump;

the adjusting part is provided with a first state and a second state, and is in the first state after the placing plate is supported by the limiting block, and the upper through hole is communicated with the lower through hole; after the placing plate is far away from the limiting block, the adjusting part is in a second state, and the upper through hole is isolated from the lower through hole.

Further, the adjusting portion includes:

the supporting block is fixed on the side wall of the inner cavity, the inner plate is provided with a through hole penetrating through the upper surface and the lower surface of the inner plate, and the positions of the through hole and the upper through hole are completely staggered;

the air cylinder is fixed at the bottom in the aging test box body, and an output shaft of the air cylinder penetrates through a shaft hole formed in the lower surface of the placing block and is fixedly connected with the inner plate;

when the adjustment portion is in the first state, the inner plate is in contact with the brace and the inner plate is disengaged from the top surface of the inner cavity, and when the adjustment portion is in the second state, the inner plate is disengaged from the brace and the inner plate is in contact with the top surface of the inner cavity.

Furthermore, the device comprises an isolation sleeve, wherein the output shaft of the air cylinder is positioned in the isolation sleeve, one end of the isolation sleeve is fixed at the inner bottom of the aging test box, the other end of the isolation sleeve is fixed on the lower surface of the inner plate, and the isolation sleeve is a corrugated pipe.

Furthermore, the aging test device comprises a spring positioned in the lower cavity, one end of the spring is fixed on the lower surface of the placing block, and the other end of the spring is fixed at the bottom in the aging test box.

The support rod is composed of a plurality of V-shaped grooves for placing samples, and a plurality of nozzles are arranged on the side surfaces of the V-shaped grooves.

Furthermore, the bottom of the V-shaped groove is provided with a through hole.

The invention has the beneficial effects that: when the aging test device for rubber products is used for testing, firstly, the plug plugs the communicating hole, then the adjusting part is in the second state, the upper through hole is isolated from the lower through hole, then, samples are sequentially placed between the support rods, after the test is finished, the box cover is closed, the adjusting part drives the placing block to move downwards, the placing block stops moving after the placing block falls to the limiting block, at the moment, the adjusting part is converted into the first state to enable the upper through hole and the lower through hole to be communicated, then, the air pump is kept closed, the oxygen bottle is opened to enable oxygen in the oxygen bottle to enter the lower cavity and enter the upper cavity through the upper through hole and the lower through hole to act with the samples, after the test time is up, the adjusting part is firstly converted into the second state to enable the upper through hole to be isolated from the lower through hole, the oxygen in the lower cavity cannot enter the upper cavity again, then, the air suction pump starts to absorb the oxygen in the upper cavity, and accomodate it in the holding vessel, after absorbing a period of time, because the atmospheric pressure in last intracavity is crossed lowly, causes the box to damage easily, opens the intercommunicating pore this moment, makes outside gas get into, at this moment after absorbing a period of time, stops absorbing, then opens the case lid, can take out the sample, and through this device, the sample that is absorbed by the aspirator pump can used repeatedly, has improved oxygen utilization ratio.

Drawings

In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only one or more embodiments of the present specification, and that other drawings may be obtained by those skilled in the art without inventive effort from these drawings.

FIG. 1 is a first cross-sectional front view of an embodiment of the present invention;

FIG. 2 is a second front cross-sectional view of an embodiment of the present invention;

FIG. 3 is an enlarged view of a V-shaped groove in an embodiment of the present invention;

fig. 4 is a top view of a V-groove in an embodiment of the present invention.

Wherein, 1, aging test box body; 2. placing the plate; 3. a placement groove; 4. a stay bar; 5. an upper through hole; 6. a lower through hole; 7. an inner cavity; 8. an inner plate; 9. a through hole; 10. a limiting block; 11. an inlet; 12. an outlet; 13. a communicating hole; 14. a support block; 15. a cylinder; 16. an isolation sleeve; 17. a spring; 18. a nozzle; 19. and (6) a port.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure is further described in detail below with reference to specific embodiments.

It is to be noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present specification should have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in one or more embodiments of the specification is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In view of the above object, a first aspect of the present invention provides an embodiment of an aging test apparatus for rubber products, as shown in fig. 1 and 2, comprising:

the aging test box comprises an aging test box body 1 and a placing plate 2 matched with the aging test box body 1, wherein the side surface of the placing plate 2 is contacted with the inner side wall of the aging test box body 1, a placing groove 3 is arranged on the upper surface of the placing plate 2, an inner cavity 7 is arranged in the bottom of the placing groove 3, an upper through hole 5 communicated with the placing groove 3 is arranged on the top surface of the inner cavity 7, and a lower through hole 6 penetrating through the lower surface of the placing plate 2 is arranged on the bottom surface of the inner cavity 7;

the supporting rods 4 are positioned in the placing groove 3, and two ends of each supporting rod 4 are connected to the side wall of the placing groove 3 and used for supporting rubber products;

the limiting block 10 is arranged on the inner side wall of the aging test box body 1, and the limiting block 10 is used for supporting the placing plate 2;

in the aging test box body 1, an upper cavity is positioned above the upper surface of the placing plate 2, a lower cavity is positioned below the lower surface of the placing plate 2, an inlet 11, an outlet 12 and a communication hole 13 are arranged on the inner wall of the aging test box body 1, the inlet 11 is positioned in the lower cavity, the inlet 11 is communicated with an oxygen box, the outlet 12 and the communication hole 13 are both positioned in the upper cavity, and the outlet 12 is communicated with an air suction pump;

the adjusting part is provided with a first state and a second state, and is in the first state after the placing plate 2 is supported by the limiting block 10, and the upper through hole 5 is communicated with the lower through hole 6; after the placing plate 2 is far away from the limiting block 10, the adjusting part is in a second state, and the upper through hole 5 is isolated from the lower through hole 6.

In this embodiment, during the test, the plug plugs the communication hole 13, the adjusting part is in the second state, the upper through hole 5 is isolated from the lower through hole 6, the sample is sequentially placed between the support rods 4, after the test is completed, the box cover is closed, the adjusting part drives the placing block to move downwards, after the placing block falls to the limiting block 10, the placing block stops moving, the adjusting part is converted into the first state, the upper through hole 5 is communicated with the lower through hole 6, the air pump is kept closed, the oxygen bottle is opened, oxygen in the oxygen bottle enters the lower cavity and enters the upper cavity through the upper through hole 5 and the lower through hole 6 to react with the sample, after the test time, the adjusting part is firstly converted into the second state, the upper through hole 5 is isolated from the lower through hole 6, oxygen in the upper cavity cannot enter the upper cavity again, and then the air suction pump starts to absorb oxygen in the upper cavity, and accomodate it in the holding vessel, after absorbing a period of time, because the atmospheric pressure in last intracavity is crossed lowly, causes the box to damage easily, opens intercommunicating pore 13 this moment, makes outside gas get into, at this moment after absorbing a period of time, stops absorbing, then opens the case lid, can take out the sample, and through this device, the sample that is absorbed by the aspirator pump can used repeatedly, has improved oxygen utilization ratio.

As an embodiment, as shown in fig. 1 and 2, the adjusting part includes:

the inner plate 8 is arranged in the inner cavity 7, the supporting block 14 is positioned below the inner plate 8, the side surface of the inner plate 8 is in contact with the side wall of the inner cavity 7, the supporting block 14 is fixed on the side wall of the inner cavity 7, the inner plate 8 is provided with a through hole 9 penetrating through the upper surface and the lower surface of the inner plate, and the positions of the through hole 9 and the upper through hole 5 are completely staggered;

the air cylinder 15 is fixed at the bottom in the aging test box body 1, and an output shaft of the air cylinder 15 penetrates through a shaft hole formed in the lower surface of the placing block and is fixedly connected with the inner plate 8;

when the adjustment portion is in the first state, the inner plate 8 is in contact with the brace 14 and the inner plate 8 is disengaged from the top surface of the cavity 7, and when the adjustment portion is in the second state, the inner plate 8 is disengaged from the brace 14 and the inner plate 8 is in contact with the top surface of the cavity 7.

In this embodiment, when placing the lower surface of piece and stopper 10 contact, magnetism this moment adjustment portion is in when the first state, inner panel 8 and bracer 14 contact, and inner panel 8 breaks away from with the top surface of inner chamber 7, it communicates with lower through-hole 6 through hole 9 to go up through-hole 5 like this, thereby make oxygen can enter into the epicoele, it is experimental to accomplish, after accomplishing experiment, cylinder 15 at first moves and drives inner panel 8 rebound, after inner panel 8 and the top surface contact of inner chamber 7, at this moment, go up through-hole 5 and keep apart lower through-hole 6, then cylinder 15 continues to move, it moves one section distance to drive and place the piece rebound, place under the action of piece gravity, make the isolation effect better, the aspirator pump begins to absorb intracavity oxygen.

As an embodiment, as shown in fig. 1 and fig. 2, the aging test device comprises an isolation sleeve, wherein the output shaft of the cylinder 15 is located in the isolation sleeve, one end of the isolation sleeve is fixed at the inner bottom of the aging test chamber, the other end of the isolation sleeve is fixed at the lower surface of the inner plate 8, the isolation sleeve is a corrugated pipe, and the cylinder 15 is isolated by an isolation sleeve 16, so that the cylinder 15 is prevented from being oxidized.

As an embodiment, as shown in fig. 1 and 2, a spring 17 is included in the lower chamber, one end of the spring 17 is fixed to the lower surface of the placing block, and the other end is fixed to the bottom of the aging test chamber, wherein after the placing block is separated from the placing block by the cylinder 15, the inner plate 8 is in closer contact with the top surface of the inner chamber 7 by the contraction force of the spring 17, and the sealing effect is better.

As an embodiment, as shown in fig. 3, the sample holder comprises an air pump and a nozzle 18 communicated with the air pump, the brace rod 4 is composed of a plurality of V-shaped grooves for placing samples, and a plurality of nozzles 18 are arranged on the side surface of the V-shaped grooves, wherein, after the samples are placed in the V-shaped grooves, the samples are necessarily contacted with one side surface of the V-shaped grooves, so that the side surface of the samples contacted with the side surface is difficult to contact with oxygen, therefore, after a period of time, the nozzles 18 of the side surface spray gas, so that the samples turn over, and the other side surface of the samples is contacted with the other side surface of the V-shaped grooves, and thus, all the surfaces of the samples are uniformly contacted with oxygen.

In addition, as shown in fig. 4, the bottom of the V-shaped groove is provided with a port 19 so that oxygen can directly enter the gap between the sample and the V-shaped groove from the port 19.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the spirit of the present disclosure, features from the above embodiments or from different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present description as described above, which are not provided in detail for the sake of brevity.

It is intended that the one or more embodiments of the present specification embrace all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present disclosure are intended to be included within the scope of the present disclosure.