CN217878980U - Automatic testing machine for concrete test block freeze-thaw cycle - Google Patents
Automatic testing machine for concrete test block freeze-thaw cycle Download PDFInfo
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- CN217878980U CN217878980U CN202220842189.9U CN202220842189U CN217878980U CN 217878980 U CN217878980 U CN 217878980U CN 202220842189 U CN202220842189 U CN 202220842189U CN 217878980 U CN217878980 U CN 217878980U
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Abstract
The utility model relates to a concrete test block freeze-thaw cycle automatic testing machine, which comprises a box body, wherein a freezing area and a thawing area are arranged in the box body, a sample box is arranged in the box body, the sample box is connected with a driving device, and the driving device can enable the sample box to move between the freezing area and the thawing area; one side of the sample box close to the melting area is connected with a heat-insulating partition plate; one side of the sample box close to the melting area is connected with a melted water supply device. Because set up freezing district and melting district in the box, and the sample box can switch between freezing district and melting district, and the mobile device contactless water prevents to freeze, improves experimental degree of automation, improves experimental degree of reliability.
Description
Technical Field
The utility model relates to a test equipment technical field specifically, relates to a concrete test block freeze thawing cycle automatic testing machine.
Background
Concrete is widely used in civil and hydraulic engineering. Concrete freeze-thaw damage is common in cold regions. Because of the alternative change of positive and negative temperature, the pore water in the concrete forms the fatigue stress of the combined action of freezing expansion pressure, osmotic pressure, crystallization pressure and the like, so that the concrete is gradually degraded from the surface to the inside, and the strength of the concrete is reduced. The mechanical properties of concrete are reduced when used in a freeze-thaw environment. Therefore, a freeze-thaw cycle test performed in a laboratory is required to determine the number of freeze-thaw cycles to evaluate the frost resistance of the concrete.
The freeze-thaw test requires a certain period, for example, every four hours, the concrete test block is placed alternately in the freezing environment and the thawing environment, and generally the freeze-thaw test requires hundreds of cycles.
Most of the existing experimental facilities use manual lofting and sampling, which requires a lot of manpower. Meanwhile, with the extension of the freeze-thaw cycle period, the error probability may increase due to manual sampling and lofting, and the accuracy of the test result is affected.
There are some technical scheme that change machine among the prior art, for example chinese utility model patent publication No. CN 215339595U discloses a road is with multi-functional maintenance freeze-thaw cycle all-in-one, including experimental box (1), lift measuring mechanism (2), water circulating system (3) and refrigerating system (4), lift measuring mechanism passes through telescopic link (23) and pneumatic cylinder (24) and reciprocates in hot melt room 12 and freezer 13, experimental box adopts double-deck design, upper strata freezer is used for test piece low temperature freezing, lower floor's hot melt room is used for the hot melt, drive the test piece through lift measuring mechanism and reciprocate, carry out hot melt and refrigeration cycle.
Although the structure can realize unmanned operation freeze-thaw cycle tests, the test equipment has a complex structure, and particularly, many parts of the lifting measuring mechanism are transferred to the freezing chamber after contacting water in the hot melting chamber, and are easy to freeze, such as upper and lower heat insulation plates, guide blocks, guide grooves, electronic scales, round holes and the like, and the parts need to move periodically and are easy to be adhered together, so that the equipment cannot run.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is to provide a concrete test block freeze thawing circulation automatic testing machine removes the sample box automatically between freezing district and melting district to sample box and drive, mobile device contactless water prevent to freeze, improve experimental degree of automation, improve experimental reliable degree.
In order to solve the technical problem, the automatic testing machine for the freeze thawing cycle of the concrete test block comprises a box body, wherein a freezing area and a thawing area are arranged in the box body, a sample box is arranged in the box body, the sample box is connected with a driving device, and the driving device can enable the sample box to move between the freezing area and the thawing area; one side of the sample box, which is close to the melting zone, is connected with a heat-preservation partition plate, and the heat-preservation partition plate can separate the freezing zone from the melting zone after the sample box moves to the freezing zone; one side of the sample box, which is close to the melting area, is connected with a molten water supply device, and the molten water supply device can input water for melting the sample blocks into the sample box; the sample box sets up the fused water eduction gear, the fused water eduction gear can be after the thawing finishes get into before the freezing district with water discharge.
Because set up freezing district and melting district in the box, and the sample box can switch between freezing district and melting district, then move the sample box to melting district when melting after freezing cycle is accomplished, close refrigeration plant this moment, input the water of melting in melting district through the pipeline to the sample box, when needs get into freezing cycle, remove the water of melting in the sample box after to remove the sample box to freezing district again, open refrigeration plant and refrigerate, accomplish the freeze-thaw cycle. The side of the sample box close to the melting area is connected with the heat-preservation partition plate, so that the freezing area and the melting area can be separated in a freezing period, cold energy is prevented from being input into the melting area, equipment in the melting area is frozen, and the energy of refrigeration can be saved. The mobile device does not contact water, so that freezing is prevented, the automation degree of the test is improved, and the reliability of the test is improved.
As a further improvement, a second partition is connected to one side of the sample box close to the freezing zone, and the second partition can separate the freezing zone from the melting zone after the sample box moves to the melting zone.
The second partition plate can separate the freezing area from the melting area in the melting period, so that the cold energy of the freezing area is prevented from being input into the melting area, and the energy of refrigeration can be saved.
As a further improvement, a limiting device is arranged on the inner wall of the box body, the limiting device can limit the moving range of the heat-preservation partition plate and the second partition plate but does not interfere with the movement of the sample box, the limiting device is arranged between the freezing area and the melting area, and the heat-preservation partition plate and the second partition plate are arranged on two sides of the limiting device.
As a further improvement, at least one side of the limiting device is provided with a sealing strip.
The freezing area and the melting area are arranged on the left side and the right side of the box body; alternatively, the freezing zone and the melting zone are arranged above and below the box body. The sample box can move left and right and up and down under the driving of the driving device.
As a further improvement, the thawing water supply device is connected with the sample box through a flexible pipe.
The flexible pipe can change the length along with the movement of the sample box when the sample box moves, and can adapt to the movement of the sample box.
Preferably, the molten water discharging device is a valve arranged at the bottom of the sample box.
The driving device is one of the following structures,
(1) The chain and chain wheel structure is connected to the sample box or the heat insulation partition plate;
(2) A gear rack mechanism arranged on the sample box or the heat insulation clapboard and the wall of the box body;
(3) An air cylinder is arranged on the box body, and an air cylinder rod of the air cylinder is connected with the sample box or the heat-preservation partition plate;
(4) And the driving wheel is arranged on the sample box or the heat-insulating partition plate.
The heat-preservation clapboard and the second clapboard are connected with the sample box through a bracket; and rollers are arranged on the sample box and/or the heat-insulating partition plate and the second partition plate. The roller wheels are arranged on the sample box, so that the sample box can move more smoothly, and the phenomenon that the sample box is blocked due to icing is prevented.
The device for providing the molten water is arranged in the box body, the device for providing the molten water is arranged on one side, away from the freezing area, of the molten area, the device for providing the molten water comprises a water storage tank and a heating box, and the heating box is connected with the sample box through a flexible pipe.
After adopting such structure, the utility model discloses a concrete test block freeze thawing circulation automatic testing machine can carry out hot melt and refrigeration cycle automatically, keeps apart the heat preservation through the heat insulating board simultaneously, prevents that the temperature diffusion in two regions from influencing the test result, can reduce the artificial experimental error that produces of removing, and the device collection maintenance is as an organic whole with experimental, easy operation, degree of automation height, and measurement accuracy is high, efficient. The heat-insulating partition plate is connected to one side, close to the melting area, of the sample box, so that the freezing area and the melting area can be partitioned in a freezing period, cold energy is prevented from being input into the melting area, equipment in the melting area is frozen, and refrigerating energy can be saved. The mobile device does not contact water, so that freezing is prevented, the automation degree of the test is improved, and the reliability of the test is improved.
The foregoing description is only an overview of the technical solutions of the present application, so that the technical means of the present application can be more clearly understood and the present application can be implemented according to the content of the description, and in order to make the above and other objects, features and advantages of the present application more clearly understood, the following detailed description is made with reference to the preferred embodiments of the present application and the accompanying drawings.
The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with 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 used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following descriptions are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts. Throughout the drawings, like elements or portions are generally identified by like reference numerals.
Fig. 1 is a schematic structural diagram of a first embodiment of the automatic testing machine for freeze-thaw cycle of a concrete test block of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the automatic testing machine for freeze-thaw cycle of a concrete test block of the present invention, wherein the sample box is in a freezing area.
Fig. 3 is a schematic structural diagram of a second embodiment of the automatic testing machine for freeze-thaw cycle of concrete test block of the present invention, wherein the sample box is located in the melting area.
Fig. 4 is a schematic structural diagram of a third embodiment of the automatic testing machine for freeze-thaw cycle of a concrete test block of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. In the following description, specific details such as specific configurations and components are provided only to help the embodiments of the present application be fully understood. Accordingly, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of well-known functions and constructions are omitted in the embodiments for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "the embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrase "one embodiment" or "the present embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Further, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
The term "and/or" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, which may mean: the three cases of A alone, B alone and A and B together exist, and the term "/and" in this document describes another associated object relationship, which means that two relationships may exist, for example, A/and B, which may mean: a alone, and both a and B alone, and further, the character "/" in this document generally means that the former and latter associated objects are in an "or" relationship.
The term "at least one" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, at least one of a and B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion.
As shown in fig. 1 to 4, the utility model discloses a concrete test block freeze thawing cycle automatic testing machine, including box 1, set up freezing district 2 and melting district 3 in the box 1, refrigeration plant 7 is connected to freezing district 2, and melting district 3 keeps apart with refrigeration plant, sets up sample box 4 in the box 1, and drive arrangement is connected to sample box 4, and drive arrangement can make sample box can move between freezing district 2 and melting district 3. In the first embodiment, the sample box 4 is connected with a thermal insulation partition 5 at one side close to the melting zone 3, and the thermal insulation partition 5 can separate the freezing zone 2 from the melting zone 3 after the sample box 4 moves to the freezing zone 2; one side of the sample box 4 close to the melting area 3 is connected with a molten water supply device 6, and the molten water supply device 6 can input water for melting the sample blocks into the sample box 4; the sample box 4 is provided with a thawing water discharge device which is a valve 14 capable of automatically opening to discharge water before entering the freezing zone after thawing is completed.
Because set up freezing district 2 and melting district 3 in box 1, and sample box 4 can switch between freezing district 2 and melting district 3, when melting after freezing cycle is accomplished, then move sample box 4 to melting district 3, close refrigeration plant 7 this moment, input the water of melting in melting district 3 through the pipeline to sample box 4, when needs enter freezing cycle, remove the water of melting in sample box 4 after and then move sample box 4 to freezing district 2, open refrigeration plant 7 and refrigerate, accomplish the freeze-thaw cycle. One side of the sample box 4 close to the melting area 3 is connected with the heat-insulating partition plate 5, so that the freezing area 2 and the melting area 3 can be separated in a freezing period, cold energy is prevented from being input into the melting area 3, equipment in the melting area 3 is frozen, and the energy of refrigeration can be saved. Various mutual positions need not the equipment contact water that removes, prevent to freeze, improve experimental degree of automation, improve experimental degree of reliability.
In a second embodiment, as shown in fig. 2 and 3, a second partition 8 is attached to the side of the sample chamber 4 adjacent to the freezing zone 2, and the second partition 8 is capable of separating the freezing zone 2 from the thawing zone 3 after the sample chamber 4 is moved to the thawing zone 3. The second partition plate 8 can separate the freezing zone 2 from the melting zone 3 in the melting period, so that the cold energy of the freezing zone 2 is prevented from being input into the melting zone 3, and the energy of refrigeration can be saved.
Set up stop device 9 on the 1 inner wall of box, stop device 9 can inject the range of movement of heat preservation baffle 5 and second baffle 8 but does not hinder sample box 4's removal, and stop device 9 sets up between freezing district 2 and melting district 3, and heat preservation baffle 5 and second baffle 8 live in stop device 9 both sides. Sealing strips 10 are arranged on two sides of the limiting device 9. Freezing district and melting district transverse arrangement, the left and right sides of branch house box, stop device 9 can be the bellied spacing strip that has a take the altitude, and spacing strip sets up on the upper wall of box, left and right walls, and the bottom can not set up spacing strip, and the bottom of box can flow the space and set up the gliding track of convenient sample case 4, perhaps sample case 4 lower part sets up gyro wheel 11.
In the third embodiment, the freezing zone 2 and the thawing zone 3 can also be arranged up and down, and are separated from the upper and lower sides of the box body, the freezing zone 2 is arranged below, and the thawing zone is arranged below. The sample box can move left and right and up and down under the driving of the driving device. Since the up-and-down movement requires a greater driving force and the drive means are more demanding, it is preferred that the freezing zone 2 is arranged transversely to the thawing zone 3.
The molten water supply device 6 is connected to the sample tank 4 through a flexible tube 12. The flexible tube 12 may change in length as the sample chamber 4 moves, accommodating movement of the sample chamber 4, as the sample chamber 4 moves.
The driving device can be a chain and sprocket structure connected to the sample box 4 or the heat insulation partition plate 5, and can also be a gear rack mechanism arranged on the sample box 4 or the heat insulation partition plate 5 and the wall of the box body; an air cylinder 13 arranged on the box body 1, wherein an air cylinder rod of the air cylinder 13 is connected with the heat-insulating partition plate 5; the driving wheel is arranged on the sample box 4 or the heat-preservation clapboard 5. The figure only shows the case where the driving means is the cylinder 13.
The heat-preservation clapboard 5 and the second clapboard 8 are connected with the sample box 4 through a bracket 15; the sample box 4 is provided with rollers 11. The arrangement of the rollers 11 on the sample box 4 can make the movement of the sample box 4 smoother and prevent the sample box from being stuck due to freezing.
The device for providing the melting water 6 is arranged in the box body 1, the device for providing the melting water 6 is arranged on one side of the melting area 3 far away from the freezing area 2, the device for providing the melting water 6 comprises a water storage tank 61 and a heating tank 62, and the heating tank 62 is connected with the sample box 4 through a flexible pipe 12. The water temperature of the melting water tank and the heating water tank is kept at 18-20 ℃.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the spirit and scope of the invention. The technical matters of the present invention, including any simple modification, equivalent changes and modifications, do not depart from the technical matters of the present invention, and all fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a concrete test block freeze-thaw cycle automatic testing machine, includes the box, its characterized in that:
a freezing area and a melting area are arranged in the box body, a sample box is arranged in the box body and is connected with a driving device, and the driving device can enable the sample box to move between the freezing area and the melting area;
one side of the sample box, which is close to the melting zone, is connected with a heat-insulating partition plate, and the heat-insulating partition plate can separate the freezing zone from the melting zone after the sample box moves to the freezing zone;
one side of the sample box, which is close to the melting area, is connected with a molten water supply device, and the molten water supply device can input water for melting the sample blocks into the sample box;
the sample box is provided with a molten water discharge device which can discharge water before entering the freezing zone after thawing is completed.
2. The concrete block freeze-thaw cycle automatic testing machine according to claim 1, characterized in that: and one side of the sample box close to the freezing area is connected with a second partition plate, and the second partition plate can separate the freezing area from the melting area after the sample box moves to the melting area.
3. The concrete block freeze-thaw cycle automatic testing machine according to claim 2, characterized in that: set up stop device on the box inner wall, stop device can inject the displacement range of heat preservation baffle and second baffle does not hinder sample box's removal, stop device sets up between freezing district and melting district, heat preservation baffle and second baffle are separated in stop device both sides.
4. The concrete block freeze-thaw cycle automatic testing machine according to claim 3, characterized in that: and at least one side of the limiting device is provided with a sealing strip.
5. The concrete block freeze-thaw cycle automatic testing machine according to any one of claims 1 to 4, characterized in that: the freezing area and the melting area are arranged on the left side and the right side of the box body;
alternatively, the freezing zone and the melting zone are arranged above and below the box body.
6. The concrete block freeze-thaw cycle automatic testing machine according to any one of claims 1 to 3, characterized in that: the molten water supply device is connected with the sample box through a flexible pipe.
7. The concrete block freeze-thaw cycle automatic testing machine according to claim 6, characterized in that: the molten water discharging device is a valve arranged at the bottom of the sample box.
8. The concrete block freeze-thaw cycle automatic testing machine according to claim 6, characterized in that: the driving device is connected with the control device, the driving device is one of the following structures,
(1) The chain and chain wheel structure is connected to the sample box or the heat insulation partition plate;
(2) A gear rack mechanism arranged on the sample box or the heat insulation clapboard and the wall of the box body;
(3) An air cylinder is arranged on the box body, and an air cylinder rod of the air cylinder is connected with the sample box or the heat-preservation partition plate;
(4) And the driving wheel is arranged on the sample box or the heat-preservation clapboard.
9. The concrete block freeze-thaw cycle automatic testing machine according to claim 6, characterized in that: the heat-preservation clapboard and the second clapboard are connected with the sample box through a bracket;
and rollers are arranged on the sample box and/or the heat-insulating partition plate and the second partition plate.
10. The concrete block freeze-thaw cycle automatic testing machine according to claim 6, characterized in that: the device comprises a freezing area, a thawing water supply device, a storage water tank and a heating box, wherein the thawing water supply device is arranged in a box body and is connected with a control device, the thawing water supply device is arranged in the thawing area and is far away from one side of the freezing area, the thawing water supply device comprises the storage water tank and the heating box, and the heating box is connected with the sample box through a flexible pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220842189.9U CN217878980U (en) | 2022-04-13 | 2022-04-13 | Automatic testing machine for concrete test block freeze-thaw cycle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220842189.9U CN217878980U (en) | 2022-04-13 | 2022-04-13 | Automatic testing machine for concrete test block freeze-thaw cycle |
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| CN217878980U true CN217878980U (en) | 2022-11-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116023517A (en) * | 2022-12-14 | 2023-04-28 | 福州海锐黎思生物科技有限责任公司 | Preparation method of chlorella polysaccharide |
| CN116296933A (en) * | 2023-05-26 | 2023-06-23 | 中国建筑第四工程局有限公司 | Water conservancy construction concrete performance check out test set |
-
2022
- 2022-04-13 CN CN202220842189.9U patent/CN217878980U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116023517A (en) * | 2022-12-14 | 2023-04-28 | 福州海锐黎思生物科技有限责任公司 | Preparation method of chlorella polysaccharide |
| CN116296933A (en) * | 2023-05-26 | 2023-06-23 | 中国建筑第四工程局有限公司 | Water conservancy construction concrete performance check out test set |
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