Precast concrete component joint surface roughness detection device

Abstract

The utility model discloses a precast concrete component joint surface roughness detection device, comprising a housing, the housing is provided with a vertical partition plate, a chamber, a transverse partition line, a reading area, a non-reading area and a plurality of graduated scales, and a front plate and a rear plate of the housing in the reading area are transparent plates; the plurality of probes are distributed in the shell in rows and columns, and the lower end surfaces of the probes are aligned with the lower surface of the bottom plate of the shell; the number of the probe pressing pieces is multiple, each probe pressing piece comprises a sliding piece and a pressing needle, the pressing needles penetrate through the top plate and extend out of the shell, and zero scale marking lines are arranged on the pressing needles; the probe driving mechanism comprises a first rack arranged on the probe, a second rack arranged on the inner walls of two vertical plates of a sliding piece of the probe pressing piece, and a gear transmission mechanism connected between the first rack and the second rack in an engaged manner; and the locking piece is used for locking or unlocking the probe pressing piece. According to the utility model, the detection precision and the detection efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a device for detecting the roughness of a joint surface of a prefabricated concrete component. Background Art

[0002] In prefabricated buildings, the interface between precast concrete components and post-cast concrete is a weak part of the structure, and generally needs to be roughened to improve its impermeability and shear strength. Existing methods for testing the roughness of the interface generally include measuring the depth of the concave and convex points in different areas and indirect measurement by sand filling, but both have defects: the depth measurement of the probe needs to be measured multiple times when taking points in different areas, and the result is affected by the vertical placement of the probe, resulting in low detection accuracy; the sand filling method is only applicable to horizontal surface measurement, and the sand is difficult to collect, which is inefficient. Utility Model Content

[0003] The utility model aims to provide a device for detecting the roughness of a joint surface of a prefabricated concrete component, so as to solve the problems of low efficiency and low detection accuracy of the conventional joint surface roughness detection.

[0004] In order to solve the above technical problems, the technical solution provided by the utility model is: a device for detecting the roughness of the joint surface of a prefabricated concrete component, comprising:

[0005] A shell, wherein the shell is a cube consisting of a front plate, a rear plate, a left plate, a right plate, a top plate and a bottom plate, wherein a vertical partition plate parallel to the front plate is arranged in the shell, wherein the vertical partition plate divides the shell into two chambers, wherein the surfaces of the front plate and the rear plate of the shell are provided with a transverse partition line, wherein the transverse partition line divides the front plate and the rear plate of the shell into a reading area and a non-reading area, wherein at least the front plate and the rear plate of the reading area are transparent plates, wherein a plurality of scales distributed vertically at equal intervals are aligned on the front plate and the rear plate of the reading area, wherein the upper end surfaces of the front plate and the rear plate are zero scales of each of the scales;

[0006] Probes are multiple probes distributed in rows and columns in the shell on both sides of the vertical partition plate, the length of the probes is less than the height of the shell, the lower end surface of the probes is aligned with the lower surface of the bottom plate of the shell, and the lower end of the probes can extend out of the bottom plate of the shell;

[0007] The probe pressing pieces are multiple and correspond to the probes one by one, each of which comprises a sliding piece of a U-shaped structure composed of a horizontal plate and two vertical plates, and a pressing needle vertically arranged on the horizontal plate, the pressing needle passes through the top plate and extends out of the shell, one of the pressing pieces is aligned on a scale, and each of the pressing needles is aligned with a zero scale mark line arranged at the zero scale position of the scale; the two vertical plates of the sliding piece are respectively slidably arranged on the inner walls of the front plate and the rear plate of the vertical partition plate and parallel thereto;

[0008] The probe driving mechanism includes first racks arranged on both sides of the probe in the width direction of the reading area, second racks arranged on the inner walls of the two vertical plates of the sliding member of the probe pressing member along the length direction thereof, and a gear transmission mechanism meshingly connected between the first racks of each probe in each chamber and the second rack of the probe pressing member, wherein the gear transmission mechanism is used to drive the probe and the probe pressing member to move in the same direction;

[0009] The locking piece is used to lock or unlock the pressing needles of each of the probe pressing pieces.

[0010] Furthermore, in the device for detecting the roughness of the joint surface of a precast concrete component provided by the utility model, the gear transmission mechanism includes a third gear meshingly connected to the first rack of the probe, the third gear meshingly connected to the second gear, the second gear coaxially connected to the first gear, the gear ratio of the first gear to the second gear is greater than 1, and the first gear meshingly connected to the second rack of the probe pressure piece.

[0011] Furthermore, in the concrete precast component joint surface roughness detection device provided by the utility model, the locking member includes a clamping rod arranged on the top plate surface of the shell and clamped on the pressure pins in the same row or column, and both ends of the two clamping rods in the same row or column are provided with locking bolts that are through-connected.

[0012] Furthermore, in the device for detecting the roughness of the joint surface of a precast concrete component provided by the utility model, the locking member is a nut threadedly connected to each pressure pin.

[0013] Furthermore, in the device for detecting the roughness of the joint surface of a prefabricated concrete component provided by the utility model, convex lenses are embedded in the front plate and the rear plate at the corresponding positions of the scale.

[0014] Furthermore, in the device for detecting the roughness of the joint surface of a precast concrete component provided by the utility model, the front plate and the rear plate in the non-reading area are transparent plates, and the bottom plate is a transparent plate.

[0015] Furthermore, in the device for detecting the roughness of the joint surface of a prefabricated concrete component provided by the utility model, the shell is a transparent shell.

[0016] Furthermore, in the device for detecting the roughness of the joint surface of a prefabricated concrete component provided by the utility model, the probes are arranged in two rows and multiple columns.

[0017] Furthermore, in the device for detecting the roughness of the joint surface of a precast concrete component provided by the utility model, there are 10 probes, and the 10 probes are arranged in two rows and five columns, and the probes in each row are isolated by the vertical partition plate.

[0018] Furthermore, in the device for detecting the roughness of the joint surface of a precast concrete component provided by the utility model, the thickness of the bottom plate of the shell is greater than the thickness of the top plate, the front plate, the rear plate, the left plate and the right plate.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] The utility model provides a device for detecting the roughness of the joint surface of a precast concrete component. Before use, the locking piece is unlocked to release the constraints of the probe and the probe pressing piece. The device for detecting the roughness of the joint surface of the precast concrete component is placed on a horizontal plane so that the bottom plate of the shell contacts the horizontal plane. The probe extending out of the shell moves upward and retracts to align with the lower surface of the bottom plate of the shell. At the same time, the probe drives the probe pressing piece to move upward through the probe driving mechanism so that the zero scale mark line on the pressing needle is aligned with the zero scale of each scale, that is, zeroing. The locking piece is locked to constrain the probe and the probe pressing piece. When in use, the zero-adjusted roughness detection device for the bonding surface of the precast concrete component is placed on the bonding surface of the precast concrete component, the locking piece is unlocked to release the constraints of the probe and the probe pressing piece, and each probe pressing piece is pressed downward. Each of the probe pressing pieces moves downward and is driven by the probe driving mechanism to extend downward from the bottom plate of the shell to contact the bonding surface of the precast concrete component. The roughness of each contact point on the bonding surface of the precast concrete component is measured by reading the height difference of the zero scale mark line of each probe pressing piece relative to the zero scale of the scale in situ, or the locking piece is locked to constrain the probe and the probe pressing piece, and the roughness detection device for the bonding surface of the precast concrete component is removed from the bonding surface of the precast concrete component to read the height difference of the zero scale mark line of each probe pressing piece relative to the zero scale of the scale in off-site manner to measure the roughness of each contact point on the bonding surface of the precast concrete component.

[0021] The device for detecting the roughness of the joint surface of a precast concrete component provided by the utility model integrates a plurality of probes and matched probe pressing pieces and performs multi-point detection on the roughness of the joint surface of the precast concrete component, thereby improving the detection efficiency and detection accuracy.

[0022] The roughness detection device for the joint surface of a precast concrete component provided by the utility model places the shell on the joint surface of the precast concrete component for measurement. Since the shell is a cube, the bottom plate of the shell and the joint surface of the precast concrete component have a large contact area, so that the roughness detection device can be placed horizontally on the joint surface of the precast concrete component, reducing the verticality deviation of each probe relative to the joint surface, overcoming the problem of verticality deviation when the probe is placed at the measuring point of the joint surface, thereby further improving the detection accuracy of the roughness. In addition, by detecting the roughness at multiple points, the average value is calculated, the maximum value is taken, or the value with the largest height difference is taken as the roughness of the joint surface, thereby further improving the detection accuracy of the roughness.

[0023] The roughness detection device for the joint surface of a precast concrete component provided by the utility model can perform roughness detection on a non-horizontal joint surface by reading the roughness value off-site, thereby improving the application range of the roughness detection device. By reading the roughness value off-site, the disadvantageous situation that the reserved steel bars of the precast concrete component block the line of sight and it is inconvenient to read the roughness value of the corresponding point can also be overcome.

[0024] The concrete precast component joint surface roughness detection device provided by the utility model can make each probe contact with the joint surface of the concrete precast component by pressing the pressing needle of the probe pressing piece after the probe and the probe pressing piece are released from constraint, and has the advantage of convenient operation.

[0025] The utility model provides a device for detecting the roughness of the joint surface of a precast concrete component. The probe pressing needle and the probe are moved synchronously by a probe driving mechanism, and the probe pressing needle and the probe are moved relative to each other by a gear transmission mechanism, thereby improving the stability of the upward or downward movement of the probe and the probe pressing piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the main structure of a device for detecting the roughness of the joint surface of a precast concrete component;

[0027] Figure 2 It is a schematic diagram of the top view of the structure of a device for detecting the roughness of the joint surface of a precast concrete component;

[0028] Figure 3 It is a schematic diagram of the side cross-sectional structure of a device for detecting the roughness of the joint surface of a precast concrete component;

[0029] Figure 4 yes Figure 3 A magnified view of the probe pressing piece;

[0030] Figure 5 yes Figure 3 An enlarged view of the gear transmission mechanism;

[0031] Figure 6 It is a structural schematic diagram of the use state of the concrete precast component joint surface roughness detection device;

[0032] As shown in the figure:

[0033] 100. Device for detecting roughness of joint surface of precast concrete components;

[0034] 110, housing, 111, vertical partition plate, 112, chamber, 113, horizontal partition line, 114, reading area, 115, non-reading area, 116, scale, 117, bottom plate;

[0035] 120. Probe;

[0036] 130, probe pressing piece, 131, pressing needle, 132, zero scale mark line, 133, sliding piece, 134, horizontal plate, 135, vertical plate;

[0037] 140. probe driving mechanism, 141. first rack, 142. second rack, 143. gear transmission mechanism, 144. first gear, 145. second gear, 146. third gear, 147. gear shaft;

[0038] 150, locking piece, 151, clamp rod, 152, locking bolt;

[0039] 160. Convex lens;

[0040] 200. Precast concrete components. 201. Joint surfaces. DETAILED DESCRIPTION

[0041] The utility model is described in detail below in conjunction with the accompanying drawings: According to the following description, the advantages and features of the utility model will be more clearly understood. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model.

[0042] Please refer to Figures 1 to 6 The present utility model provides a concrete precast component joint surface roughness detection device 100, which at least includes a housing 110, a probe 120, a probe pressing member 130, a probe driving mechanism 140 and a locking member 150, wherein:

[0043] The shell 110 is a cube consisting of a front plate, a rear plate, a left plate, a right plate, a top plate and a bottom plate. A vertical partition plate 111 parallel to the front plate is arranged in the shell 110, and the vertical partition plate 111 divides the shell 110 into two chambers 112. The surfaces of the front plate and the rear plate of the shell 110 are provided with a horizontal partition line 113, and the horizontal partition line 113 divides the front plate and the rear plate of the shell 110 into a reading area 114 and a non-reading area 115. At least the front plate and the rear plate of the reading area 114 are transparent plates, and a plurality of equally spaced vertically distributed scales 116 are aligned on the front plate and the rear plate of the reading area 114, and the upper end surfaces of the front plate and the rear plate are zero scales of each scale 116, that is, the lower surface of the top plate is zero scale. The scale 116 has scale lines, which can be horizontal lines arranged at equal intervals of 1 mm along the length of the scale 116, and the intervals between the horizontal lines are not limited to 1 mm. The scale 116 can range from 0 to 50 mm. Figure 1 The upper end is the top plate, the lower end is the bottom plate, the left end is the left plate, and the right end is the right plate. Figure 2 The lower end is the front plate, the upper end is the back plate, the left end is the left plate, and the right end is the right plate. Figure 3 The upper end of the device is the top plate, the lower end is the bottom plate, the left end is the back plate, and the right end is the front plate.

[0044] The probes 120 are multiple probes distributed in rows and columns in the housing 110 on both sides of the vertical partition plate 111. The length of the probes 120 is less than the height of the housing 110, that is, the height of the probes 120 is less than the height of the housing 110. The lower end surface of the probes 120 is aligned with the lower surface of the bottom plate of the housing 110, and the lower end of the probes 120 can extend out of the bottom plate of the housing 110. That is, a through hole for the probes 120 to pass through is provided on the bottom plate of the housing 110.

[0045] The probe pressing pieces 130 are multiple and correspond to the probes 120 one by one. Each of the probe pressing pieces 130 includes a U-shaped sliding piece 133 composed of a horizontal plate 134 and two vertical plates 135, and a pressing needle 131 vertically arranged on the horizontal plate 134. The pressing needle 131 extends through the top plate and extends out of the housing 110. One of the pressing needles 131 is aligned with a scale 116, that is, the pressing needle 131 and the scale 116 are distributed on the same vertical line, and each of the pressing needles 131 is aligned with the scale A zero scale mark line 132 is provided at the zero scale position of the ruler 116; the two vertical plates 135 of the sliding member 133 are respectively slidably arranged on the inner walls of the front plate and the rear plate parallel to the vertical partition plate 111, that is, the two vertical plates 135 of the sliding member 133 in one chamber 112 are respectively slidably arranged on the rear plate parallel to the vertical partition plate 111, and the two vertical plates 135 of the sliding member 133 in another chamber 112 are respectively slidably arranged on the front plate parallel to the vertical partition plate 111.

[0046] Please focus on Figure 3 The probe driving mechanism 140 includes a first rack 141 arranged on both sides of the width direction of the probe 120 located in the reading area 114, a second rack 142 arranged along the length direction of the inner walls of the two vertical plates 135 of the sliding member 133 of the probe pressing member 130, and a gear transmission mechanism 143 meshingly connected between the first rack 141 of each probe 120 in each chamber 112 and the second rack 142 of the probe pressing member 130, wherein the gear transmission mechanism 143 is used to drive the probe 120 and the probe pressing member 130 to move in the same direction.

[0047] The locking member 150 is used to lock or unlock the pressing pins 131 of each probe pressing member 130. When the pressing pins 131 are locked, the probe 120 and the probe driving mechanism 140 are locked at the same time, and when the pressing pins 131 are unlocked, the probe 120 and the probe driving mechanism 140 are unlocked at the same time.

[0048] Please refer to Figure 3 and Figure 6, the concrete precast component joint surface roughness detection device 100 provided by the embodiment of the utility model, before use, the locking piece 150 is unlocked to release the constraints of the probe 120 and the probe pressing piece 130, the concrete precast component joint surface roughness detection device 100 is placed on a horizontal plane, the bottom plate of the shell 110 is in contact with the horizontal plane, the probe 120 extending out of the shell 110 moves upward and retracts to align with the lower surface of the bottom plate of the shell 110, and at the same time, the probe 120 drives the probe pressing piece 130 to move upward through the probe driving mechanism 140 so that the zero scale mark line 132 on the pressing needle 131 is aligned with the zero scale of each scale 116, that is, zeroing, and the locking piece 150 is locked to constrain the probe 120 and the probe pressing piece 130. When in use, the zero-adjusted roughness detection device 100 for detecting the bonding surface of a prefabricated concrete component is placed on the bonding surface 201 of the prefabricated concrete component 200, the locking member 150 is unlocked to release the constraints of the probe 120 and the probe pressing member 130, and each probe pressing member 130 is pressed downward. Each of the probe pressing members 130 moves downward and drives the probe 120 to extend downward from the bottom plate of the shell 110 through the probe driving mechanism 140 to contact the bonding surface 201 of the prefabricated concrete component 200. The roughness of each contact point of the bonding surface 201 of the prefabricated concrete component 200 is measured by reading in-situ the height difference of the zero scale mark line 132 of each probe pressing member 130 relative to the zero scale of the scale 116, that is, the roughness detection device 100 is not taken away, and this reading method is suitable for the bonding surface 201 in a horizontal state. Alternatively, the locking member 150 is locked to constrain the probe 120 and the probe pressing member 130, and the roughness detection device 100 is removed from the joint surface 201 of the precast concrete component 200 to read the height difference of the zero scale mark line 132 of each probe pressing member 130 relative to the zero scale of the scale 116 to measure the roughness of each contact point of the joint surface 201 of the precast concrete component 200. The height change of the probe pressing member 130 is proportional to that of the probe 120, and the height difference of the probe pressing member 130 is the roughness value of the contact point of the joint surface 201 of the precast concrete component 200 measured by the probe, wherein the roughness value is also the depth of the concave and convex points of the joint surface 201 of the probe 120 and the precast concrete component 200.

[0049] Please refer to Figure 6 The concrete precast component joint surface roughness detection device 100 provided by the embodiment of the utility model improves the detection efficiency and detection accuracy by integrating multiple probes 120 and their matching probe presses 130, and performing multi-point simultaneous detection of the roughness of the joint surface 201 of the concrete precast component 200.

[0050] The concrete precast component joint surface roughness detection device 100 provided by the embodiment of the utility model places the shell 110 on the joint surface 201 of the concrete precast component 200 for measurement. Since the shell 110 is a cube, the bottom plate of the shell 110 and the joint surface 201 of the concrete precast component 200 have a large contact area, so that the roughness detection device 100 can be placed horizontally on the joint surface 201 of the concrete precast component 200, reducing the verticality deviation of each probe 120 relative to the joint surface 201, overcoming the problem of verticality deviation when the probe is placed at the measuring point of the joint surface, thereby further improving the roughness detection accuracy. In addition, by detecting the roughness at multiple points, the average value is calculated, the maximum value is taken, or the value with the largest height difference is taken as the roughness of the joint surface, thereby further improving the roughness detection accuracy.

[0051] The roughness detection device 100 for the joint surface of a precast concrete component provided by the embodiment of the utility model reads the roughness value off-site, so that the roughness detection device 100 can perform roughness detection on a non-horizontal joint surface, thereby improving the application scope of the roughness detection device 100. By reading the roughness value off-site, the disadvantageous situation that the reserved steel bars of the precast concrete component block the line of sight and it is inconvenient to read the roughness value of the corresponding point can also be overcome.

[0052] The concrete precast component joint surface roughness detection device 100 provided in the embodiment of the utility model can make each probe 120 contact the joint surface 201 of the concrete precast component 200 by pressing the pressure needle 131 of the probe pressure piece 130 after the constraints of the probe 120 and the probe pressure piece 130 are released, so it has the advantage of easy operation.

[0053] The concrete precast component joint surface roughness detection device 100 provided by the embodiment of the utility model makes the probe 120 pressure needle 131 and the probe 120 move synchronously through the probe driving mechanism 140, and makes the probe 120 pressure needle 131 and the probe 120 produce relative movement through the gear transmission mechanism 143, thereby improving the stability of the upward or downward movement of the probe 120 and the probe pressure piece 130.

[0054] Please refer to Figure 3 and Figure 5In order to improve the detection accuracy, the concrete precast component joint surface roughness detection device 100 provided by the embodiment of the utility model comprises a gear transmission mechanism 143 including a third gear 144 meshingly connected with the first rack 141 of the probe 120, the third gear 144 meshingly connected with the second gear 145, the second gear 145 coaxially connected with the first gear 146, the gear ratio of the first gear 146 to the second gear 145 is greater than 1, and the first gear 146 meshingly connected with the second rack 142 of the probe pressing member 130. The first gear 147 and the third gear 144 are respectively arranged on the housing 110 through a gear shaft 147, which can be parallel to the front plate and penetrated through the left plate and the right plate. The first gear 146 and the second gear 145 are coaxially connected to enlarge the length of rotation, and the second gear 145 and the third gear 144 are meshed to change the direction of rotation. The three gears assist in making the probe pressure piece 130 descend by a predetermined multiple of the probe 120 descending distance, thereby enlarging the reading value and reducing the error that may be generated when the roughness value is manually read. For example: when the gear is not used to enlarge the reading value, if the actual depth is 20.5mm and the manual reading value is 20.0mm or 21.00mm, the manual error is ±0.5mm, but when the gear is used to enlarge the reading value by 5 times, the actual depth is displayed as 102.5mm, and the manual reading value is 102mm or 103mm at this time, and the measured depth is 20.4mm or 20.6mm, and the manual error is reduced to ±0.1mm.

[0055] Please refer to Figures 1 to 3 In order to improve the rapidity of locking or unlocking, the concrete precast component joint surface roughness detection device 100 provided by the embodiment of the utility model comprises a locking member 150 which includes a clamping rod 151 which is arranged on the top plate surface of the shell 110 and clamped on the pressure pins 131 in the same row or column, and locking bolts 152 which are connected through the two ends of the two clamping rods 151 in the same row or column. Figure 2 The example in which the clamp rods 151 are arranged along the same row is shown. Each row of probe presses 130 is locked and unlocked by two clamp rods 151, with a total of four clamp rods 151. Each clamp rod 151 is provided with a concave shape matching the pressure needle 131 at the position of the pressure needle 131 of each probe press 130, so that when the locking bolt 152 locks the two clamp rods 151 of each row of probe presses 130, the pressure needle 131 of each probe press 130 is clamped. That is, the clamp rods 151 distributed in rows or columns can lock or unlock each clamp pressure piece 130 in the same row or column at the same time, thereby improving the locking or unlocking of the probe presses 130.

[0056] In the concrete prefabricated component joint surface roughness detection device 100 provided by the embodiment of the utility model, the locking member 150 is a nut threadedly connected to each pressure needle 131. The locking member 150 is a nut, and each probe pressure member 130 is independently controlled.

[0057] Please refer to Figures 1 to 3 In order to facilitate reading the roughness value of each contact point position of the probe 120 on the joint surface 201 of the prefabricated concrete component 200 reflected by each probe pressing piece 130, the concrete prefabricated component joint surface roughness detection device 100 provided by the embodiment of the utility model has convex lenses 160 embedded in the front plate and the rear plate at the corresponding position of the scale 116. The convex lens 160 can magnify the scale lines on the scale 116, which has the advantage of convenient reading. The convex lens 160 is embedded in the housing 110, that is, specifically embedded in the front plate and the rear plate of the housing 110, which can prevent the convex lens 160 from being worn and affecting the reading.

[0058] Please refer to Figure 1 In order to facilitate observation of whether the probe 120 extends out of the housing 110, the concrete precast component joint surface roughness detection device 100 provided by the embodiment of the utility model has the front plate and the rear plate of the non-reading area 115 as transparent plates, and the bottom plate as a transparent plate. In order to facilitate observation of the position of the probe 120 from various angles, the housing 110 is a transparent housing 110. When the front plate and the rear plate are transparent plates, the value of the roughness of each contact point detected by each probe 120 can be read through the scale 116 of the reading area 114 by observing the descending position of the zero scale mark line 131 on the pressure needle 131 of the probe pressing piece 130.

[0059] Please refer to Figure 2 In order to improve the detection efficiency, the concrete precast component joint surface roughness detection device 100 provided by the embodiment of the utility model has the probes 120 arranged in two rows and multiple columns. The probes 120 may be 10, and the 10 probes 120 are arranged in two rows and five columns, and the probes 120 in each row are isolated by the vertical partition plate 111. The number of rows and columns of the probes is not limited to two rows, nor is it limited to five columns. In order to avoid the assembly of the corresponding probe pressing pieces 130 on each probe 120, the probe pressing pieces 130 are prohibited from being staggered.

[0060] Please refer to Figure 1 , Figure 3 and Figure 6In order to improve the stability of the housing 110 placed on the joint surface 201 of the precast concrete component 200, the present invention provides a roughness detection device 100 for the joint surface of the precast concrete component, wherein the thickness of the bottom plate of the housing 110 is greater than the thickness of the top plate, the front plate, the rear plate, the left plate and the right plate, that is, the thickness of the bottom plate is the thickest, and the thickness of the bottom plate is thicker than that of the other plates, so that it can be stably supported on the joint surface 201 of the precast concrete component 200, and avoid the bottom plate being too thin and bending along the roughness curve of the joint surface 201 when placed on the joint surface 201 of the precast concrete component 200. The bottom plate can be used as the reference measurement surface of the roughness detection device 100, and also as the reference for zeroing.

[0061] In the concrete prefabricated component joint surface roughness detection device 100 provided by the utility model, the top plate of the housing 110 can prevent the probe pressing piece from being separated from the housing 110 .

[0062] The detection process of the concrete prefabricated component joint surface roughness detection device 100 provided by the present invention can be simplified as follows:

[0063] Zero adjustment → Place the tool on the surface to be measured → Unlock the probe → Press the probe pressure piece to make it fully contact with the measuring point → Fix the probe → Remove the tool from the surface to be measured → Read and record. The locking probe pressure piece is the fixed probe.

[0064] The present utility model is not limited to the above-mentioned specific implementation modes. Obviously, the above-mentioned embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the described embodiments of the present utility model belong to the scope of protection of the present utility model. Those skilled in the art can make other levels of modifications and changes to the present utility model. In this way, if these modifications and changes of the present utility model fall within the scope of the claims of the present utility model, the present utility model is also intended to include these changes and changes.

Claims

1. A device for detecting the roughness of the joint surface of a precast concrete component, characterized in that: include: A shell, wherein the shell is a cube consisting of a front plate, a rear plate, a left plate, a right plate, a top plate and a bottom plate, wherein a vertical partition plate parallel to the front plate is arranged in the shell, wherein the vertical partition plate divides the shell into two chambers, wherein the surfaces of the front plate and the rear plate of the shell are provided with a transverse partition line, wherein the transverse partition line divides the front plate and the rear plate of the shell into a reading area and a non-reading area, wherein at least the front plate and the rear plate of the reading area are transparent plates, wherein a plurality of scales distributed vertically at equal intervals are aligned on the front plate and the rear plate of the reading area, wherein the upper end surfaces of the front plate and the rear plate are zero scales of each of the scales; Probes are multiple probes distributed in rows and columns in the shell on both sides of the vertical partition plate, the length of the probes is less than the height of the shell, the lower end surface of the probes is aligned with the lower surface of the bottom plate of the shell, and the lower end of the probes can extend out of the bottom plate of the shell; The probe pressing pieces are multiple and correspond to the probes one by one, each of which comprises a sliding piece of a U-shaped structure composed of a horizontal plate and two vertical plates, and a pressing needle vertically arranged on the horizontal plate, the pressing needle passes through the top plate and extends out of the shell, one of the pressing pieces is aligned on a scale, and each of the pressing needles is aligned with a zero scale mark line arranged at the zero scale position of the scale; the two vertical plates of the sliding piece are respectively slidably arranged on the inner walls of the front plate and the rear plate of the vertical partition plate and parallel thereto; The probe driving mechanism includes first racks arranged on both sides of the probe in the width direction of the reading area, second racks arranged on the inner walls of the two vertical plates of the sliding member of the probe pressing member along the length direction thereof, and a gear transmission mechanism meshingly connected between the first racks of each probe in each chamber and the second rack of the probe pressing member, wherein the gear transmission mechanism is used to drive the probe and the probe pressing member to move in the same direction; The locking piece is used to lock or unlock the pressing needles of each of the probe pressing pieces.

2. The device for detecting the roughness of the joint surface of a precast concrete component according to claim 1, characterized in that: The gear transmission mechanism includes a third gear meshingly connected to the first rack of the probe, the third gear meshingly connected to the second gear, the second gear coaxially connected to the first gear, the gear ratio of the first gear to the second gear is greater than 1, and the first gear meshingly connected to the second rack of the probe pressure piece.

3. The device for detecting the roughness of the joint surface of a precast concrete component according to claim 1, characterized in that: The locking member comprises a clamp rod which is arranged on the top plate surface of the shell and is clamped on the pressure pins in the same row or column. Both ends of the two clamp rods in the same row or column are provided with locking bolts which are connected through.

4. The device for detecting the roughness of the joint surface of a precast concrete component according to claim 1, characterized in that: The locking piece is a nut threadedly connected to each pressure needle.

5. The device for detecting the roughness of the joint surface of a precast concrete component according to claim 1, characterized in that: Convex lenses are embedded in the front plate and the rear plate at corresponding positions of the scale.

6. The device for detecting the roughness of the joint surface of a precast concrete component according to claim 1, characterized in that: The front plate and the rear plate in the non-reading area are transparent plates, and the bottom plate is a transparent plate.

7. The device for detecting the roughness of the joint surface of a precast concrete component according to claim 1, characterized in that: The shell is a transparent shell.

8. The device for detecting the roughness of the joint surface of a precast concrete component according to claim 1, characterized in that: The probes are arranged in two rows and multiple columns.

9. The device for detecting the roughness of the joint surface of a precast concrete component according to claim 8, characterized in that: There are 10 probes, which are arranged in two rows and five columns, and the probes in each row are isolated by the vertical partition board.

10. The device for detecting the roughness of the joint surface of a precast concrete component according to claim 1, characterized in that: The thickness of the bottom plate of the shell is greater than the thickness of the top plate, the front plate, the rear plate, the left plate and the right plate.

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