阅读说明：本技术 一种用于混凝土加工的z形混凝土空心砌块冻融循环试验装置 (A Z shape concrete hollow block freeze thawing cycle test device for concrete processing ) 是由 王学军 于 2020-12-12 设计创作，主要内容包括：本发明涉及混凝土冻融循环试验装置技术领域,具体是一种用于混凝土加工的Z形混凝土空心砌块冻融循环试验装置,包括载荷、混凝土试样、螺杆和传感器；所述混凝土试样放置在试验箱中,所述试验箱顶部盖合有盖,所述试验箱底部内壁设置有降温设备,所述降温设备上方设置有支撑底座,所述试验箱左右内壁上加工有卡槽,所述卡槽内卡装有卡齿,所述卡齿上还与拉索的一端固定连接,所述拉索的另一端放置在拉索槽内,所述拉索槽开设在所述滑动座上,所述拉索的另一端卡装在转向轮上且延伸出空隙,所述空隙开设在所述试验箱的后侧壁。本发明结构原理简单、造价低廉,能够实现混凝土冻融循环试验过程中的快速变温,有效保证了试验精度,实用性强。(The invention relates to the technical field of concrete freeze-thaw cycle test devices, in particular to a Z-shaped concrete hollow block freeze-thaw cycle test device for concrete processing, which comprises a load, a concrete sample, a screw and a sensor, wherein the load is a load; the concrete sample is placed in a test box, a cover is covered at the top of the test box, cooling equipment is arranged on the inner wall of the bottom of the test box, a supporting base is arranged above the cooling equipment, clamping grooves are machined in the left inner wall and the right inner wall of the test box, clamping teeth are clamped in the clamping grooves and fixedly connected with one ends of the stay cables, the other ends of the stay cables are placed in stay cable grooves, the stay cable grooves are formed in sliding seats, the other ends of the stay cables are clamped on steering wheels and extend out of gaps, and the gaps are formed in the rear side wall of the test box. The concrete freeze-thaw cycle test device is simple in structure principle and low in manufacturing cost, can realize rapid temperature change in the concrete freeze-thaw cycle test process, effectively guarantees test precision, and is high in practicability.)

1. The utility model provides a Z shape concrete hollow block freeze-thaw cycle test device for concrete processing, includes load (1), concrete sample (2), screw rod (3) and sensor (4), load (1) below is provided with concrete sample (2), load (1) through sensor (4) with concrete sample (2) are fixed, be provided with in concrete sample (2) sensor (4), its characterized in that: the concrete sample (2) is placed in a test box (5), a cover (6) covers the top of the test box (5), cooling equipment (9) is arranged on the inner wall of the bottom of the test box (5), a supporting base (8) is arranged above the cooling equipment (9), and the left end and the right end of the supporting base (8) are respectively welded and fixed on the left inner wall and the right inner wall of the test box (5); a plurality of through holes (10) are formed in the supporting base (8); clamping grooves (12) are processed on the left inner wall and the right inner wall of the test box (5), clamping teeth (15) are clamped in the clamping grooves (12), the clamping teeth (15) are installed in installation grooves (14) in a left-right sliding mode, the installation grooves (14) are formed in the left end and the right end of a sliding seat (13), the upper end face of the sliding seat (13) is fixed with the screw rod (3) in a threaded mode, and the concrete sample (2) is placed on the upper end face of the sliding seat (13); a spring (16) is further arranged in the mounting groove (14), one end of the spring (16) is fixedly welded with the latch (15), and the other end of the spring (16) is fixedly welded with the inner wall of the mounting groove (14); the clamping teeth (15) are fixedly connected with one end of a cable (17), the other end of the cable (17) is placed in a cable groove (18), the cable groove (18) is formed in the sliding seat (13), the other end of the cable (17) is clamped on a steering wheel (19) and extends out of a gap (21), the gap (21) is formed in the rear side wall of the test box (5), the steering wheel (19) is welded and fixed on a wheel shaft (20), and the wheel shaft (20) is rotatably installed in the cable groove (18).

2. The freeze-thaw cycle test device for the Z-shaped concrete hollow block for concrete processing according to claim 1, characterized in that: and a handle (7) is fixed on the upper end surface of the cover (6) through a bolt.

3. The freeze-thaw cycle test device for the Z-shaped concrete hollow block for concrete processing according to claim 2, characterized in that: the handle (7) is sleeved with a rubber sleeve.

4. The freeze-thaw cycle test device for the Z-shaped concrete hollow block for concrete processing according to claim 1, characterized in that: and a protective gasket (11) is bonded on the upper end surface of the supporting base (8).

5. The freeze-thaw cycle test device for the Z-shaped concrete hollow block for concrete processing according to claim 4, characterized in that: the protective pad (11) is made of silica gel.

6. The freeze-thaw cycle test device for the Z-shaped concrete hollow block for concrete processing according to any one of claims 1 to 5, wherein the freeze-thaw cycle test device comprises: the inhaul cable (17) is a steel cable or a nylon cable.

Technical Field

The invention relates to the technical field of concrete freeze-thaw cycle test devices, in particular to a freeze-thaw cycle test device for a Z-shaped concrete hollow block for concrete processing.

Background

The freeze-thaw damage is the degradation damage from the outside to the inside of concrete containing water or contacting with water for a long time under the alternating action of positive and negative temperature. In cold region engineering, freeze-thaw cycles can cause deterioration of the mechanical properties of concrete and destroy the integrity of the concrete, thereby affecting the stability of the whole structure. The concrete is subjected to freeze-thaw cycles while being under a load. Therefore, the damage under the combined action of the freeze-thaw cycle and the load can reflect the practical problem better, and the existing freeze-thaw tester has the action of considering the load. And no test device capable of compressing the concrete sample after the coupling action of load and freeze-thaw cycle is available so far.

In the existing concrete freezing and thawing cycle test device, because the whole test device is placed in a freezing and thawing test machine to simulate the change of the ambient temperature, the whole device is high in cost, and meanwhile, the temperature change process is slow and uneven, so that the test precision is influenced to a certain extent.

Disclosure of Invention

In order to solve the problems in the background technology, the invention provides a freeze-thaw cycle test device for a Z-shaped concrete hollow block for concrete processing.

In order to achieve the purpose, the invention provides the following technical scheme:

a freeze-thaw cycle test device for a Z-shaped concrete hollow block for concrete processing comprises a load, a concrete sample, a screw and a sensor, wherein the concrete sample is arranged below the load, the load is fixed with the concrete sample through the sensor, and the sensor is arranged in the concrete sample;

the concrete sample is placed in a test box, a cover covers the top of the test box, cooling equipment is arranged on the inner wall of the bottom of the test box, a supporting base is arranged above the cooling equipment, and the left end and the right end of the supporting base are respectively welded and fixed on the left inner wall and the right inner wall of the test box; the supporting base is provided with a plurality of through holes for ensuring that the temperature of the inner cavity of the test box can be fully cooled by cooling equipment and ensuring the circulation of the inner air; clamping grooves are machined in the left inner wall and the right inner wall of the test box, clamping teeth are clamped in the clamping grooves, the clamping teeth are installed in installation grooves in a left-right sliding mode, the installation grooves are formed in the left end and the right end of a sliding seat, the upper end face of the sliding seat is fixed with the screw in a threaded mode, and the concrete sample is placed on the upper end face of the sliding seat; a spring is further arranged in the mounting groove, one end of the spring is fixedly welded with the latch, and the other end of the spring is fixedly welded with the inner wall of the mounting groove; the gear clip is fixedly connected with one end of a cable, the other end of the cable is placed in a cable groove, the cable groove is formed in the sliding seat, the other end of the cable is clamped on a steering wheel and extends out of a gap, the gap is formed in the rear side wall of the test box, the steering wheel is welded and fixed on a wheel shaft, and the wheel shaft is rotatably installed in the cable groove.

As a further scheme of the invention: the handle is fixed on the upper end face of the cover through a bolt, and a rubber sleeve is sleeved on the handle, so that the technical effects of skid resistance and heat insulation are achieved.

As a further scheme of the invention: the up end bonding of support base has the protection gasket, the protection gasket is the silica gel material, plays the technical effect of abrasionproof loss and buffering.

As a further scheme of the invention: the inhaul cable is a steel cable or a nylon cable and is used for pulling the latch into the mounting groove, so that the sliding seat can move downwards in the test box conveniently.

Compared with the prior art, the invention has the beneficial effects that:

the whole temperature inside the test box is reduced through the temperature reduction equipment, the temperature inside the test box is continuously reduced from top to bottom because the temperature reduction equipment is positioned at the bottom of the cavity inside the test box, when a concrete freeze-thaw cycle test needs to be carried out, the sliding seat, a sample, a load and a sensor above the sliding seat are integrally placed into the test box, and in the process that the sliding seat is placed into the test box downwards, because the latch and the clamping groove are mutually limited, only the pull rope needs to be tensioned at the moment, the latch is contracted back into the mounting groove, the downward sliding of the sliding seat in the test box can be realized, the different positions of the sliding seat represent the different temperatures, the latch and the clamping groove are mutually limited to ensure that the sliding seat can stay at each temperature position in the test box, and because the latch and the clamping groove cannot be mutually limited in the process that the sliding seat moves upwards in the test box, the convenience of temperature adjustment is ensured, the technical effect of rapid temperature change in the experimental process is realized. The concrete freeze-thaw cycle test device is simple in structure principle and low in manufacturing cost, can realize rapid temperature change in the concrete freeze-thaw cycle test process, effectively guarantees test precision, and is high in practicability.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is an enlarged view of a portion B in fig. 1.

In the figure: 1-load, 2-concrete sample, 3-screw, 4-sensor, 5-test box, 6-cover, 7-handle, 8-supporting base, 9-cooling device, 10-through hole, 11-protective gasket, 12-clamping groove, 13-sliding seat, 14-mounting groove, 15-clamping tooth, 16-spring, 17-inhaul cable, 18-inhaul cable groove, 19-steering wheel, 20-wheel shaft and 21-gap.

Detailed Description

Example 1

Referring to fig. 1-3, a freeze-thaw cycle test device for a Z-shaped concrete hollow block for concrete processing comprises a load 1, a concrete sample 2, a screw 3 and a sensor 4, wherein the concrete sample 2 is arranged below the load 1, the load 1 is fixed with the concrete sample 2 through the sensor 4, and the sensor 4 is arranged in the concrete sample 2; the concrete sample 2 is placed in a test box 5, a cover 6 covers the top of the test box 5, a cooling device 9 is arranged on the inner wall of the bottom of the test box 5, a support base 8 is arranged above the cooling device 9, and the left end and the right end of the support base 8 are respectively welded and fixed on the left inner wall and the right inner wall of the test box 5; the supporting base 8 is provided with a plurality of through holes 10 for ensuring that the cooling equipment 9 can fully cool the air temperature of the inner cavity of the test box 5 and ensure the circulation of the inner air; clamping grooves 12 are formed in the left inner wall and the right inner wall of the test box 5, clamping teeth 15 are clamped in the clamping grooves 12, the clamping teeth 15 are installed in installation grooves 14 in a left-right sliding mode, the installation grooves 14 are formed in the left end and the right end of a sliding seat 13, the upper end face of the sliding seat 13 is fixed with the screw rod 3 in a threaded mode, and the concrete sample 2 is placed on the upper end face of the sliding seat 13; a spring 16 is further arranged in the mounting groove 14, one end of the spring 16 is fixedly welded with the latch 15, and the other end of the spring 16 is fixedly welded with the inner wall of the mounting groove 14; the latch 15 is further fixedly connected with one end of a cable 17, the other end of the cable 17 is placed in a cable groove 18, the cable groove 18 is formed in the sliding seat 13, the other end of the cable 17 is clamped on a steering wheel 19 and extends out of a gap 21, the gap 21 is formed in the rear side wall of the test box 5, the steering wheel 19 is welded and fixed on a wheel shaft 20, and the wheel shaft 20 is rotatably installed in the cable groove 18.

Example 2

Referring to fig. 1 to 3, in this embodiment, on the basis of embodiment 1, a handle 7 is fixed to an upper end face of the cover 6 by a bolt, and a rubber sleeve is sleeved on the handle 7 to achieve the technical effect of anti-skid and heat insulation; a protective gasket 11 is bonded on the upper end surface of the supporting base 8, and the protective gasket 11 is made of silica gel, so that the technical effects of wear resistance and buffering are achieved; the pulling cable 17 is a steel cable or a nylon cable and is used for pulling the latch 15 into the mounting groove 14, so that the sliding seat 13 can move downwards in the test box 5.

The working principle of the invention is as follows: the temperature inside the test box 5 is integrally cooled through the cooling equipment 9, the temperature inside the test box 5 is continuously reduced from top to bottom because the cooling equipment 9 is positioned at the bottom of the inner cavity of the test box 5, when a concrete freeze-thaw cycle test needs to be carried out, only the sliding seat 13 and a sample, a load and a sensor above the sliding seat are required to be integrally placed into the test box 5, in the process that the sliding seat 13 is placed into the test box 5 downwards, because the latch 15 and the clamping groove 12 are mutually limited, only the pull rope 17 needs to be tensioned, the latch 15 is contracted back into the mounting groove 14, the sliding seat 13 can slide downwards in the test box 5, the different positions of the sliding seat 13 represent the different temperatures, the latch 15 and the clamping groove 12 are mutually limited to ensure that the sliding seat 13 can stay at each temperature position inside the test box 5, and because the latch 15 and the clamping groove 12 cannot be mutually limited in the process that the sliding seat 13 moves upwards inside the test box 5, the convenience of temperature adjustment is guaranteed, and the technical effect of rapid temperature change in the experimental process is achieved. The concrete freeze-thaw cycle test device is simple in structure principle and low in manufacturing cost, can realize rapid temperature change in the concrete freeze-thaw cycle test process, effectively guarantees test precision, and is high in practicability.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.