A process for detecting the verticality of a cement precast

Abstract

The application discloses a cement prefabricated part installation verticality detection process applied to the detection field, which can effectively shorten the detection span by replacing the setting of a hanging line plummet in the prior art with a drop detection sleeve, thereby greatly reducing the detection difficulty compared with the prior art, and meanwhile, in cooperation with the injection of a detection liquid, the detection liquid can drop along the liquid guide detection plummet downward, when the prefabricated part body is inclined, the dropping track of the detection liquid is offset from the center of the inclined color developing cylinder, the dropped detection liquid enters the edge of the inclined color developing cylinder and is gathered on the inclined side, thereby obvious color change phenomenon occurs on the drop detection sleeve, and the change side is the offset side, compared with the prior art, the verticality of the prefabricated part body can be effectively adjusted by the staff, and the safety hidden danger during use is greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of detection, in particular to a verticality detection process for cement prefabricated part installation. BACKGROUND

[0002] The cement prefabricated part, namely the concrete prefabricated part, refers to the concrete product processed and produced in a factory through a standardized and mechanized way. The traditional cast-in-situ concrete, in contrast, needs to be molded, poured and maintained on site. The concrete prefabricated part is widely used in the fields of construction, transportation and water conservancy, and plays an important role in the national economy.

[0003] Since the cement prefabricated part is generally heavy and has a large span, the verticality requirement for the prefabricated part during installation is very high. For example, when the verticality of the telegraph pole and the bridge pier is not enough due to the inclination, the building stability is poor, and there is a great safety hazard. In the prior art, the detection is generally performed by using a plumb line, and for the prefabricated part with a large longitudinal height such as the telegraph pole, the operation is difficult during detection. SUMMARY

[0004] The present application aims to facilitate the detection of the verticality of the prefabricated part during installation, so as to timely adjust and reduce the safety hazard. Compared with the prior art, the present application provides a verticality detection process for cement prefabricated part installation, which comprises the following steps:

[0005] S1, first, the bottom of the prefabricated part body of the cement prefabricated part is buried below the ground, so as to position the prefabricated part body, then the hole plug on the prefabricated part body is removed, and the drop detection sleeve is installed on the prefabricated part body through the two detection plates;

[0006] S2, the detection liquid is injected into the top of the upper detection plate, so that the detection liquid enters the drop detection sleeve, and is left to stand for 3-5 minutes;

[0007] S3, after standing, the phenomenon change on the outer surface of the drop detection sleeve is observed, when there is no obvious change phenomenon on the outer surface of the drop detection sleeve, it indicates that the verticality of the prefabricated part body meets the standard;

[0008] S4, when the color change phenomenon occurs on the outer surface of the drop detection sleeve, it indicates that the prefabricated part body is inclined, at this time, the position of the prefabricated part body is adjusted according to the direction of the change on the surface of the drop detection sleeve, and then another color of detection liquid is selected to repeat steps S2-S3 again, until no obvious color change phenomenon occurs on the outer surface of the drop detection sleeve.

[0009] By replacing the setting of the wire pendant in the prior art with the drop detection sleeve, the detection span can be effectively shortened, thereby greatly reducing the detection difficulty compared with the prior art. Meanwhile, during detection, the detection liquid can be injected and drop along the liquid guide drop detector downward. When the prefabricated body is inclined, the drop trajectory of the detection liquid deviates from the center of the inclined color developing cylinder, causing the detection liquid to enter the edge of the inclined color developing cylinder and gather on the inclined side, thereby causing a significant color change on the drop detection sleeve. The change side is the deviation side. Compared with the prior art, the verticality of the prefabricated body can be effectively adjusted, and the safety risk during use can be greatly reduced.

[0010] Further, in step S1, during embedding, according to naked eye observation, the prefabricated body is as vertical as possible in vision, and the distance between the two hole plugs is not less than 1.5 meters. When the verticality of the prefabricated body is not enough, the distance between the two hole plugs is too small, which can easily cause a small deviation during detection, and the detection liquid can still pass through the middle of the inclined color developing cylinder, causing no obvious change on the drop detection sleeve. The length of the lower extension rope is not less than 2 / 3 of the distance between the two hole plugs.

[0011] Further, the detection liquid is a dark liquid, which makes the phenomenon change on the surface of the outer variable cylinder more obvious when the verticality is not enough. In step S2, the injection of the detection liquid is in several times, and during the standing process, the detection liquid is kept on the top of the upper detection plate at all times, so that the color change phenomenon gradually gathers and becomes more and more obvious.

[0012] Further, two detection grooves are opened on the prefabricated body, the hole plugs are inserted into the detection grooves, and the end portions of the hole plugs and the detection plate are matched with the detection grooves. Before detecting the verticality, the hole plugs are inserted into the detection grooves, and during detection, the detection plate is inserted into the detection grooves. After installation or after installation, the hole plugs can be inserted into the detection grooves, thereby filling the detection grooves, and the influence of the existence of the detection grooves on the overall strength of the prefabricated body is effectively avoided. During installation, the hole plugs can be removed and replaced with the detection plate for detecting the verticality, thereby facilitating the installation of the drop detection sleeve for detecting the verticality.

[0013] Further, a spherical groove is opened on the upper end of the upper detection plate away from the prefabricated body. The drop detection sleeve includes an outer variable cylinder clamped on the upper end of the lower detection plate, an upper sleeve fixedly connected to the lower end of the upper detection plate, and a liquid guide drop detector located in the upper sleeve. The upper end of the liquid guide drop detector is located in the spherical groove, and the liquid guide drop detector moves through the upper detection plate. The detection liquid is injected into the spherical groove, and then the detection liquid can drop downward along the liquid guide drop detector. When the verticality is high, the dropped detection liquid can just pass through the inclined color developing cylinder and enter the inside of the inclined color developing cylinder. At this time, no obvious color change phenomenon occurs on the surface of the drop detection sleeve.

[0014] Furthermore, the spherical groove, the outer variable tube and the upper sleeve are coaxially arranged. The upper sleeve is made of an elastic material with a hydrophobic coating on the inner surface. When the detection liquid drops onto the inner wall of the upper sleeve, the detection liquid can quickly fall to the edge of the oblique color-developing tube under the action of hydrophobicity, thereby changing color. The outer variable tube is a hard double-layer structure, and the outer layer of the outer variable tube is transparent, which is convenient for observing the accumulation of the detection liquid at the edge of the oblique color-developing tube.

[0015] Furthermore, the liquid-guiding measuring sinker includes a limiting end with multiple through holes located in the spherical groove, a liquid collecting sinker located below, and a lower extension rope fixedly connected between the limiting end and the liquid collecting sinker. The liquid collecting sinker is a double-pyramid structure, and the angle between the two pyramid edges is not less than 120°, so that the angle of the turning part between the two pyramids is not easy to be too small, and thus the detection liquid gathered on the pyramid is not easy to drip down at the turning point, effectively ensuring that the detection liquid can gather at the bottom of the pyramid and then fall, making the detection result more accurate, and the angle between the lower pyramid oblique surface and the horizontal plane is greater than the angle between the upper pyramid oblique side and the horizontal plane.

[0016] Furthermore, the upper end surface of the inner layer of the outer variable tube is lower than the upper end surface of the outer layer, an oblique color-developing tube is provided between the inner and outer layers of the outer variable tube, an outer fixed ring is placed on the upper end of the outer variable tube, a plurality of connecting rods are fixedly connected between the outer fixed ring and the oblique color-developing tube, and the upper end of the outer fixed ring is connected to the lower end of the upper sleeve.

[0017] Furthermore, the oblique color-developing tube includes a liquid guide ring located at the upper end of the inner layer of the outer variable tube, a chain ring fixedly connected to the outer periphery of the liquid guide ring, and a plurality of liquid collecting tubes distributed in an array. The plurality of liquid collecting tubes are all located between the inner and outer layers of the outer variable tube, and the upper end of the liquid collecting tube is fixedly passed through the liquid guide ring. The inner diameter of the liquid guide ring is larger than the maximum outer diameter of the liquid collecting pendant, and the outer edge of the liquid guide ring is lower than the inner edge, so that the liquid guide ring is tilted. When the detection liquid drops on the liquid guide ring, it can slide down along its inclination into the liquid collecting tube, so that when the preform body is not vertical, obvious color changes can be observed on the drip inspection sleeve. The liquid collecting tube is a transparent tube structure with a water-absorbing cotton layer attached to the inner wall. After the detection liquid enters the liquid collecting tube, it will be absorbed by the water-absorbing cotton layer and quickly dispersed, thereby making the color change range larger and more obvious.

[0018] Compared with the existing technology, the advantages of this application are:

[0019] (1) By replacing the existing technology of the drop detection sleeve with the setting of the existing technology, the detection span can be effectively shortened, thereby greatly reducing the detection difficulty compared with the existing technology, and at the same time, cooperating with the injection of the detection liquid, the detection liquid can drop along the liquid guide detection drop, when the body of the prefabricated part is inclined, the drop trajectory of the detection liquid and the center of the inclined color developing cylinder are offset, causing the dropped detection liquid to enter the edge of the inclined color developing cylinder and gather on the inclined side, thereby causing a significant color change on the drop detection sleeve. The change side is the offset side, which can effectively assist the staff to adjust the perpendicularity of the prefabricated part body, greatly reducing the safety hazard during use.

[0020] (2) When the perpendicularity of the prefabricated part body is not enough, the distance between the two hole plugs is too small, which can easily cause a small offset during detection, which can easily cause the dropped detection liquid to still pass through the middle of the inclined color developing cylinder, causing no obvious change at the drop detection sleeve.

[0021] (3) The detection liquid is a dark liquid, which makes the phenomenon change on the surface of the outer variable cylinder more obvious when the perpendicularity is not enough. The injection of the detection liquid in step S2 is a gradual injection, and during the standing process, the detection liquid is always maintained on the top of the detection plate, so that the color change phenomenon gradually gathers and becomes more and more obvious.

[0022] (4) The hole plug can be inserted into the detection groove after installation or after installation, thereby filling the detection groove, thereby effectively avoiding the influence of the existence of the detection groove on the overall strength of the prefabricated part body. During installation, in order to detect the perpendicularity, the hole plug can be removed and replaced with a detection plate, thereby facilitating the installation of the drop detection sleeve for detecting the perpendicularity.

[0023] (5) The detection liquid is injected into the spherical groove, and then the detection liquid can drop downward. When the perpendicularity is high, the dropped detection liquid can just pass through the inclined color developing cylinder and enter its interior, at which time the surface of the drop detection sleeve does not have a significant color change phenomenon.

[0024] (6) The spherical groove, the outer variable cylinder and the upper sleeve are coaxially arranged, the upper sleeve is made of elastic material with a hydrophobic coating on the inner surface. When the detection liquid drops onto the inner wall of the upper sleeve, it can quickly fall to the edge of the inclined color developing cylinder under the action of the hydrophobic coating, thereby changing color. The outer variable cylinder is a hard double-layer structure, and the outer layer of the outer variable cylinder is transparent, which facilitates the observation of the aggregation of the detection liquid at the edge of the inclined color developing cylinder.

[0025] (7) The angle of the transition part between the two pyramids should not be too small, so that the detection liquid gathered on the pyramid does not easily drop downward at the transition, effectively ensuring that the detection liquid can be gathered at the bottom of the pyramid before falling, making the detection result more accurate. The angle between the lower pyramid inclined surface and the horizontal plane is greater than the angle between the upper pyramid inclined edge and the horizontal plane.

[0026] (8) the guide liquid ring is inclined, when the detection liquid drops on the guide liquid ring, it can slide into the liquid gathering pipe along the inclination, and when the verticality of the prefabricated part body is not high, the obvious color change phenomenon can be observed on the drop detection sleeve, the liquid gathering pipe is a transparent pipe structure with a water-absorbing cotton layer attached to the inner wall, so that the detection liquid entering the liquid gathering pipe can be absorbed by the water-absorbing cotton layer and quickly dispersed, and the color change range is larger and more obvious. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 the change structure diagram of the drop detection sleeve part of the prefabricated part of the application when the verticality is not enough;

[0028] Figure 2 the structure diagram of the prefabricated part of the application without the drop detection sleeve;

[0029] Figure 3 the structure diagram of the prefabricated part of the application with the drop detection sleeve;

[0030] Figure 4 the structure diagram of the prefabricated part of the application with the drop detection sleeve;

[0031] Figure 5 the exploded structure diagram of the drop detection sleeve of the application;

[0032] Figure 6 the structure diagram of the guide liquid drop part of the application;

[0033] Figure 7 the three-dimensional structure diagram of the outer variable cylinder of the application;

[0034] Figure 8 the exploded structure diagram of the outer edge cylinder part of the application;

[0035] Figure 9 the three-dimensional structure diagram of the inclined color developing cylinder of the application.

[0036] Explanation of reference numerals in the drawing:

[0037] 1 prefabricated part body, 2 hole block, 3 detection plate, 31 spherical groove, 4 drop detection sleeve, 41 outer variable cylinder, 42 upper sleeve, 43 guide liquid drop, 431 lower extension rope, 432 liquid gathering drop, 51 outer fixed ring, 52 connecting rod, 531 guide liquid ring, 532 liquid gathering pipe, 533 connecting ring. DETAILED DESCRIPTION

[0038] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application. Embodiments

[0039] The present application discloses a cement prefabricated part installation verticality detection process, please refer to Figure 1 , Fig. b indicates the detection liquid drops, c indicates the color change formed on the surface of the detection sleeve 4, comprising the following steps:

[0040] S1, please refer to Figure 2 , Fig. a indicates the ground, first, the bottom of the prefabricated part body 1 of the cement prefabricated part is buried below the ground, so as to position the prefabricated part body 1, then the hole plug 2 on the prefabricated part body 1 is taken out, such as Figure 3 , and the detection sleeve 4 is installed on the prefabricated part body 1 through two detection plates 3;

[0041] Two detection grooves are opened on the prefabricated part body 1, the hole plug 2 is inserted in the detection groove, and the end of the hole plug 2 and the detection plate 3 is matched with the detection groove. Before detecting the verticality, the hole plug 2 is inserted in the detection groove, and the detection plate 3 is inserted in the detection groove when detecting the verticality. After installation or after installation, the hole plug 2 can be inserted into the detection groove, so as to fill the detection groove, thereby effectively avoiding the influence of the existence of the detection groove on the overall strength of the prefabricated part body 1. During installation, the hole plug 2 can be removed and replaced with the detection plate 3 for detecting the verticality, so as to facilitate the installation of the detection sleeve 4 for detecting the verticality.

[0042] S2, inject the detection liquid into the top of the detection plate 3, so that the detection liquid enters the detection sleeve 4, and stand for 3-5 minutes;

[0043] S3, after standing, observe the phenomenon change of the outer surface of the detection sleeve 4, when there is no obvious change phenomenon on the outer surface of the detection sleeve 4, it indicates that the verticality of the prefabricated part body 1 meets the standard;

[0044] S4, when the outer surface of the detection sleeve 4 changes, it indicates that the prefabricated part body 1 is skewed, at this time, the position of the prefabricated part body 1 is adjusted according to the direction of the change on the surface of the detection sleeve 4, and then another color of detection liquid is selected to repeat steps S2-S3 again, until no obvious change occurs at the detection sleeve 4.

[0045] In step S1, when burying, according to naked eye observation, the control prefabricated part body 1 is as vertical as possible in vision, and the distance between the two hole plugs 2 is not less than 1.5 meters. When the verticality of the prefabricated part body 1 is not enough, the distance between the two hole plugs 2 is too small, which easily leads to small deviation of the detection liquid when detecting, and the detection liquid still passes through the middle of the inclined color developing cylinder, so that the obvious change does not occur at the dripping detection sleeve 4, and the length of the lower extension rope 431 is not less than 2 / 3 of the distance between the two hole plugs 2.

[0046] The detection liquid is a dark liquid, so that when the verticality is not enough, the color change phenomenon of the surface of the outer variable cylinder 41 is more obvious. In step S2, the injection of the detection liquid is in several times, and during the standing process, the detection liquid is kept on the top of the upper detection plate 3, so that the color change phenomenon is gradually gathered and more and more obvious.

[0047] Please refer to Figure 4 The upper detection plate 3 is far away from the upper end of the prefabricated part body 1 and is provided with a spherical groove 31. The dripping detection sleeve 4 includes the outer variable cylinder 41 clamped on the upper end of the lower detection plate 3, the upper sleeve 42 fixedly connected to the lower end of the upper detection plate 3, and the liquid guide falling body 43 located in the upper sleeve 42. The upper end of the liquid guide falling body 43 is located in the spherical groove 31, and the liquid guide falling body 43 is movably penetrated through the detection plate 3. The detection liquid is injected into the spherical groove 31, and then the detection liquid can drop downward along the liquid guide falling body 43. When the verticality is high, the dropped detection liquid can just pass through the inclined color developing cylinder and enter the inside of the inclined color developing cylinder. At this time, the surface of the dripping detection sleeve 4 does not have obvious color change phenomenon.

[0048] The spherical groove 31, the outer variable cylinder 41 and the upper sleeve 42 are coaxially arranged. The upper sleeve 42 is made of elastic material with a hydrophobic coating on the inner surface. When the detection liquid drops onto the inner wall of the upper sleeve 42, the detection liquid can quickly fall to the edge of the inclined color developing cylinder under the action of the hydrophobicity, so as to change color. The outer variable cylinder 41 has a hard double-layer structure, and the outer layer of the outer variable cylinder 41 is transparent, which is convenient for observing the gathering of the detection liquid at the edge of the inclined color developing cylinder.

[0049] As Figure 5 The liquid guide falling body 43 includes a limiting end with multiple through holes located in the spherical groove 31, a liquid gathering falling body 432 located below, and a lower extension rope 431 fixedly connected between the limiting end and the liquid gathering falling body 432. Figure 6 In the figure, d represents the included angle between the two edges of the pyramids. The liquid gathering falling body 432 has a double-pyramid structure, and the included angle between the two edges of the pyramids is not less than 120°. The angle of the turning part between the two pyramids is not too small, so that the detection liquid gathered on the pyramids is not easy to drop downward at the turning part, effectively ensuring that the detection liquid can be gathered at the bottom of the pyramids and then fall down, so that the detection result is more accurate. The included angle between the lower pyramid inclined surface and the horizontal plane is greater than the included angle between the upper pyramid inclined surface and the horizontal plane. The upper end surface of the inner layer of the outer variable cylinder 41 is lower than the upper end surface of the outer layer.

[0050] Please refer to Figure 7 , the outer variable barrel 41 is provided with a slanting color developing barrel between the inner and outer layers, an outer fixed ring 51 is placed on the upper end of the outer variable barrel 41, a plurality of connecting rods 52 are fixedly connected between the outer fixed ring 51 and the slanting color developing barrel, and the upper end of the outer fixed ring 51 is connected with the lower end of the upper sleeve 42. Figures 8-9 The slanting color developing barrel comprises a liquid guiding ring 531 located on the upper end of the inner layer of the outer variable barrel 41, a connecting ring 533 fixedly connected on the outer periphery of the liquid guiding ring 531, and a plurality of liquid collecting tubes 532 arranged in an array, the plurality of liquid collecting tubes 532 are located between the inner and outer layers of the outer variable barrel 41, and the upper end of the liquid collecting tube 532 is fixedly penetrated through the liquid guiding ring 531, the inner diameter of the liquid guiding ring 531 is larger than the maximum outer diameter of the liquid collecting tube 432, and the outer edge of the liquid guiding ring 531 is lower than the inner edge, so that the liquid guiding ring has an inclination, when the detection liquid drops on the liquid guiding ring 531, it can slide downward along the inclination into the liquid collecting tube 532, and thus when the perpendicularity of the prefabricated part body 1 is not high, the obvious color change phenomenon can be observed on the drop detection sleeve 4, the liquid collecting tube 532 is a transparent tube structure with a water-absorbing cotton layer attached to the inner wall, so that after the detection liquid enters the liquid collecting tube 532, it will be absorbed by the water-absorbing cotton layer and quickly dispersed, and thus the color change range is larger and more obvious.

[0051] By replacing the existing technology of the drop detection sleeve 4 with the setting of the hanging line drop, the detection span can be effectively shortened, and thus compared with the existing technology, the detection difficulty is greatly reduced, and at the same time during detection, the detection liquid can be injected along the liquid guiding drop 43 to drop downward, when the prefabricated part body 1 is inclined, the dropping track of the detection liquid is offset from the center of the slanting color developing barrel, causing the dropped detection liquid to enter the edge of the slanting color developing barrel and gather on the inclined side, and thus the obvious color change phenomenon occurs on the drop detection sleeve 4, and the change side is the offset side, compared with the existing technology, the staff can effectively assist in adjusting the perpendicularity of the prefabricated part body 1, and greatly reduce the safety hazards during use.

[0052] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change within the technical range disclosed in the present application according to the technical solution and improvement concept of the present application, which should be covered in the protection scope of the present application.

Claims

1. A process for detecting verticality during installation of cement prefabricated parts, characterized in that: The following steps are involved: S1. First, bury the bottom of the prefabricated body (1) of the cement prefabricated part below the ground, thereby positioning the prefabricated body (1), then remove the hole-blocking block (2) on the prefabricated body (1), and install the drip detection sleeve (4) on the prefabricated body (1) through two detection plates (3), wherein two detection grooves are cut on the prefabricated body (1), the hole-blocking block (2) is inserted into the detection groove, and the ends of the hole-blocking block (2) and the detection plate (3) are matched with the detection groove, and the hole-blocking block (2) is inserted into the detection groove before detecting the verticality, and the detection plate (3) is inserted into the detection groove when detecting the verticality; S2. Inject the test liquid onto the top of the test plate (3) so that the test liquid enters the drip test sleeve (4) and let it stand for 3-5 minutes; S3. After standing still, observe the color change of the outer surface of the drip inspection sleeve (4). When there is no obvious color change on the outer surface of the drip inspection sleeve (4), it indicates that the verticality of the preform body (1) meets the standard; S4. When the outer surface of the dripping detection sleeve (4) changes color, it indicates that the preform body (1) is skewed. At this time, the position of the preform body (1) is adjusted according to the direction of the change of the outer surface of the dripping detection sleeve (4), and then another color of detection liquid is selected and steps S2-S3 are repeated until the outer surface of the dripping detection sleeve (4) does not change significantly. wherein, a spherical groove (31) is bored at the upper end of the upper detection plate (3) away from the preform body (1); the drip detection sleeve (4) comprises an outer variable tube (41) clamped on the upper end of the lower detection plate (3), an upper sleeve (42) fixedly connected to the lower end of the upper detection plate (3), and a liquid guide pendant (43) located in the upper sleeve (42); the upper end of the liquid guide pendant (43) is located in the spherical groove (31), and the liquid guide pendant (43) movably penetrates the upper detection plate (3); the liquid guide pendant (43) comprises a limiting end with multiple through holes located in the spherical groove (31), a liquid collecting pendant (432) located below, and a lower extension rope (431) fixedly connected between the limiting end and the liquid collecting pendant (432); the length of the lower extension rope (431) is not less than 2 / 3 of the distance between the two hole-blocking blocks (2); The spherical groove (31), the outer variable tube (41) and the upper sleeve (42) are coaxially arranged. The upper sleeve (42) is made of an elastic material with a hydrophobic coating on the inner surface. The outer variable tube (41) is a hard double-layer structure, and the outer layer of the outer variable tube (41) is transparent. The upper end surface of the inner layer of the outer variable tube (41) is lower than the upper end surface of the outer layer; an oblique color development tube is provided between the inner and outer layers of the outer variable tube (41); an outer fixed ring (51) is placed on the upper end of the outer variable tube (41); a plurality of connecting rods (52) are fixedly connected between the outer fixed ring (51) and the oblique color development tube; and the upper end of the outer fixed ring (51) is connected to the lower end of the upper sleeve (42); The oblique color development tube comprises a liquid guide ring (531) located at the upper end of the inner layer of the outer variable tube (41), a chain ring (533) fixedly connected to the outer periphery of the liquid guide ring (531), and a plurality of liquid collecting tubes (532) distributed in an array, wherein the plurality of liquid collecting tubes (532) are all located between the inner and outer layers of the outer variable tube (41), and the upper ends of the liquid collecting tubes (532) are fixedly passed through the liquid guide ring (531); the inner diameter of the liquid guide ring (531) is greater than the maximum outer diameter of the liquid collecting pendant (432), and the outer edge of the liquid guide ring (531) is lower than the inner edge; When the detection liquid drops onto the inner surface of the upper sleeve, under the action of hydrophobicity, the detection liquid quickly falls to the edge of the oblique color developing cylinder, thereby changing color.

2. A process for detecting verticality of cement precast parts during installation according to claim 1, characterized in that: In the step S1, during burial, the prefabricated component body (1) is controlled to be as vertical as possible visually based on visual observation, and the distance between the two hole-blocking blocks (2) is not less than 1.5 meters.

3. A process for detecting verticality of cement precast parts during installation according to claim 1, characterized in that: The injection of the detection liquid in step S2 is performed in batches, and during the static process, the detection liquid is always kept on the top of the upper detection plate (3).

4. A process for detecting verticality during installation of cement precast parts according to claim 1, characterized in that: The liquid collecting sinker (432) is a double pyramid structure, and the angle between the two pyramid edges is not less than 120 degrees, and the angle between the lower pyramid oblique surface and the horizontal plane is greater than the angle between the upper pyramid oblique surface and the horizontal plane.

5. The verticality detection process during installation of cement precast parts according to claim 1 is characterized in that: The liquid collecting tube (532) is a transparent tube structure with a water-absorbing cotton layer attached to the inner wall.

Images