Device for detecting thickness of paint spraying layer of trailer

Abstract

The invention provides a trailer paint spraying layer thickness detection device, which comprises a plurality of linearly distributed detection modules, a plurality of joint structures and a plurality of pre-tightening assemblies in one-to-one correspondence with the joint structures, and is characterized in that each detection module comprises a mounting frame and at least one detection assembly arranged on the mounting frame; the detection assembly comprises a detection head; the adjacent mounting frames are connected through the joint structures, and the joint structures can support one of the two adjacent detection modules to turn over relative to the other one of the two adjacent detection modules; the pre-tightening assemblies are used for providing corresponding pre-tightening force for the corresponding joint structures so that the joint structures can be kept at the angle after being overturned by a certain angle under the action of external force. According to the scheme, the trailer can be folded into a shape matched with the shape of the surface of the trailer, and the shape is kept by the pre-tightening assembly, so that multiple planes of the surface of the trailer can be subjected to multi-point detection at the same time, the thicknesses of paint spraying layers at multiple positions can be detected at the same time, and the detection efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of paint layer thickness measurement, and in particular to a device for detecting the thickness of a trailer spray paint layer. Background Art

[0002] A trailer is a vehicle with an axle behind the center of gravity and equipped with a coupling device that can transmit horizontal and vertical forces to the tractor. The body of a trailer is generally made of metal, and in order to prevent the body from rusting, the body surface of the trailer is usually painted.

[0003] Since the thickness of spray paint generally has relevant standards, the thickness of the paint layer needs to be measured after the paint layer is dried and hardened. Common measurement methods include single-point measurement and multi-point measurement. However, the existing multi-point measurement method can only measure multiple points on the same plane, and it is difficult to measure multiple points on different planes at the same time. Summary of the invention

[0004] Based on the above problems existing in the prior art, the present invention aims to solve the technical problem that it is difficult to measure multiple points in different planes when measuring the thickness of the paint layer using a multi-point measurement method in the prior art.

[0005] The present invention provides a device for detecting the thickness of a paint layer on a trailer, which comprises:

[0006] A plurality of linearly distributed detection modules, each of which comprises a mounting frame and at least one detection component disposed on the mounting frame, wherein the detection component comprises a detection head;

[0007] A plurality of joint structures, adjacent mounting frames are connected by the joint structures, and the joint structures can support one of two adjacent detection modules to flip relative to the other;

[0008] A plurality of pre-tightening components corresponding to the joint structures are used to provide corresponding pre-tightening force for the corresponding joint structure, so that the joint structure can be turned over at a certain angle by an external force and remain at the angle.

[0009] According to an embodiment of the present invention, the joint structure is a link structure, and a plurality of the link structures are hinged in sequence to form a flexible single chain.

[0010] According to an embodiment of the present invention, the chain link structure comprises a first chain plate, a second chain plate and a pin shaft, and the first chain plate and the second chain plate, as well as adjacent chain link structures, are respectively hinged via the pin shaft;

[0011] The detection module is arranged in one-to-one correspondence with the first chain plate or the second chain plate; through holes are opened at both ends of the mounting frame, and the pin shaft moves through the through holes and is positioned.

[0012] According to an embodiment of the present invention, the number of the single chains is two, and the two single chains are arranged opposite to each other;

[0013] The mounting frame is located between the two single chains, and the two ends of the pin shaft pass through the through holes and are respectively connected to the two single chains.

[0014] According to one embodiment of the present invention, the pin shaft is a screw with a thread on one end and a nut on the other end, and the pre-tightening assembly includes a nut matching the thread. The nut cooperates with the nut of the screw to press the two single chains against the outer walls on both sides of the mounting frame.

[0015] According to one embodiment of the present invention, the detection component also includes a detection rod and an elastic member, the mounting frame is vertically provided with a mounting hole matching the detection rod, the detection rod is slidably disposed in the mounting hole, and the detection head is fixedly disposed at the bottom end of the detection rod; the two ends of the elastic member are respectively connected to the mounting frame and the detection rod so that the detection head protrudes from the bottom of the mounting frame.

[0016] According to an embodiment of the present invention, a receiving cavity communicating with the mounting hole is formed at the bottom of the mounting frame, and at least a portion of the elastic member is located in the receiving cavity.

[0017] According to an embodiment of the present invention, the detection assembly further comprises a display fixedly disposed on the top end of the detection rod, and the display is electrically connected to the detection head.

[0018] According to an embodiment of the present invention, the detection module further includes a plurality of suction cups fixedly disposed at the bottom of the mounting frame.

[0019] According to an embodiment of the present invention, the suction cup is a flexible suction cup.

[0020] The beneficial effects of the present invention are:

[0021] In a trailer paint layer thickness detection device provided by the present invention, multiple detection modules are distributed linearly, and adjacent mounting frames are connected by the joint structure, so that the trailer paint layer thickness detection device can be folded into a shape adapted to the trailer surface shape according to the trailer surface shape, and each joint structure can be provided with a pre-tightening force by the corresponding pre-tightening component so that the trailer paint layer thickness detection device maintains the folded shape, thereby realizing multi-point detection of multiple planes on the complex surface of the trailer at the same time, so as to simultaneously detect the paint layer thickness at multiple positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 is a structural schematic diagram of a first-viewing angle of view of a trailer paint layer thickness detection device provided by an embodiment of the present invention;

[0024] Figure 2 is a structural schematic diagram of a second viewing angle of a trailer paint layer thickness detection device provided by an embodiment of the present invention;

[0025] Figure 3 1 is a schematic diagram of a working state of a trailer paint layer thickness detection device provided by an embodiment of the present invention for performing multi-point detection on two planes at the same time;

[0026] Figure 4 1 is a schematic diagram of a working state of a trailer paint layer thickness detection device provided by an embodiment of the present invention for performing multi-point detection on three planes at the same time;

[0027] Figure 5 yes Figure 4 Enlarged schematic diagram of part A in the middle. DETAILED DESCRIPTION

[0028] The following descriptions of the embodiments refer to the attached drawings to illustrate specific embodiments in which the present invention can be implemented.

[0029] The present invention provides a device for detecting the thickness of a trailer paint layer, the structure of which is as follows: Figure 1 and Figure 2 As shown, it includes a plurality of linearly distributed detection modules 1, a plurality of joint structures 2 and a plurality of pre-tightening components 3 corresponding to the joint structures 2 one by one, wherein the detection module 1 includes a mounting frame 11 and at least one detection component 12 arranged on the mounting frame 11, and the detection component 12 includes a detection head 121; adjacent mounting frames 11 are connected through the joint structure 2, and the joint structure 2 can support one of two adjacent detection modules 1 to flip relative to the other; the pre-tightening component 3 is used to provide corresponding pre-tightening force for the corresponding joint structure 2, so that the joint structure 2 can remain at this angle after being flipped by an external force to a certain angle.

[0030] In a trailer paint layer thickness detection device provided by the present invention, multiple detection modules 1 are distributed linearly, and adjacent mounting frames 11 are connected by the joint structure 2, so that the trailer paint layer thickness detection device can be folded into a shape adapted to the surface shape of the trailer, and each joint structure 2 can be provided with a pre-tightening force by the corresponding pre-tightening component 3 so that the trailer paint layer thickness detection device maintains the folded shape, thereby realizing multi-point detection of multiple planes on the complex surface of the trailer at the same time, so as to simultaneously detect the paint layer thickness at multiple positions.

[0031] Specifically, the joint structure 2 is a chain link structure, and a plurality of the chain link structures are hinged in sequence to form a flexible single chain. As a specific embodiment, the chain link structure includes a first chain plate 21, a second chain plate 22 and a pin 23, and the first chain plate 21 and the second chain plate 22, as well as the adjacent chain link structures, are hinged by the pin 23; the detection module 1 is arranged in a one-to-one correspondence with the first chain plate 21 or the second chain plate 22; through holes are opened at both ends of the mounting frame 11, and the pin 23 moves through the through holes and is positioned.

[0032] It can be understood that a single chain has a dense link structure, which is conducive to the compact arrangement of multiple detection modules 1, so that the trailer paint layer thickness detection device can detect dense points.

[0033] It should be noted that, in theory, the chain link structure can be flipped at any angle between 0 and 360°, but due to the size limitations of the chain link structure and the detection module 1, the actual flippable angle range will be less than 360°; therefore, in actual work, the size (mainly the thickness size) of the chain link structure and the detection module 1 can be reduced according to actual needs, so that the chain link structure has a larger angle adjustment range.

[0034] Preferably, there are two single chains, and the two single chains are arranged opposite to each other; the mounting frame 11 is located between the two single chains, which can improve the structural reliability of the trailer paint layer thickness detection device; the two ends of the pin shaft 23 pass through the through hole and are respectively connected to the two single chains.

[0035] According to one embodiment of the present invention, the pin shaft 23 is a screw with a thread on one end and a nut on the other end. The pre-tightening assembly 3 includes a nut 31 matching the thread. The nut 31 cooperates with the nut of the screw to press the two single chains against the outer walls on both sides of the mounting frame 11.

[0036] It can be understood that after the nut 31 cooperates with the thread of the screw, it can also cooperate with the nut of the screw to clamp the mounting frame 11 between the two single chains, thereby providing a pre-tightening force for the chain link structure; after the angle between the first chain plate 21 and the second chain plate 22 is adjusted to a certain angle, the nut can be tightened to keep the first chain plate 21 and the second chain plate 22 in this position.

[0037] Furthermore, the detection assembly 12 also includes a detection rod 122 and an elastic member 123. The mounting frame 11 is vertically provided with a mounting hole 111 matching the detection rod 122. The detection rod 122 is slidably arranged in the mounting hole 111. The detection head 121 is fixedly arranged at the bottom end of the detection rod 122. The two ends of the elastic member 123 are respectively connected to the mounting frame 11 and the detection rod 122, so that the detection head 121 protrudes from the bottom of the mounting frame 11. Specifically, the elastic member 123 is a spring sleeved on the outside of the detection rod 122. Preferably, the detection assembly 12 also includes a display 124 fixedly arranged at the top of the detection rod 122. The display 124 is electrically connected to the detection head 121 and is used to directly display the thickness of the paint layer detected by the detection head 121.

[0038] It can be understood that the elastic member 123 can make the detection head 121 protrude from the bottom of the mounting frame 11 based on its own elastic force, so that the detection head 121 can make actual contact with the surface to be tested of the trailer, thereby performing effective detection; it is not difficult to understand that when the surface to be tested of the trailer is a horizontal plane, the detection head 121 can be attached to the surface to be tested based on its own gravity, thereby performing effective detection; however, when the surface to be tested of the trailer has a certain angle with the horizontal plane (such as a vertical plane), the detection head 121 cannot be attached to the surface to be tested based on its own gravity. At this time, under the action of the elastic force of the elastic member 123, the detection head 121 protrudes from the bottom of the mounting frame 11. Driven by external force, the detection head 121 can also be attached to the surface to be tested, thereby successfully detecting the thickness of the paint layer on the surface to be tested.

[0039] Preferably, in order to allow the elastic member 123 to have sufficient deformation to provide greater elastic force, a receiving cavity 112 communicating with the mounting hole 111 is provided at the bottom of the mounting frame 11 , and at least a portion of the elastic member 123 is located in the receiving cavity 112 .

[0040] According to an embodiment of the present invention, the detection module 1 further includes a plurality of suction cups 13 fixedly disposed at the bottom of the mounting frame 11 .

[0041] It can be understood that the suction cup 13 can be directly adsorbed on the surface to be measured of the trailer, especially when measuring a non-horizontal surface (such as a vertical plane or an inclined plane), it can be directly adsorbed on the surface to be measured for measurement, thereby facilitating the measurement operation.

[0042] Preferably, in order to avoid damaging the paint layer on the surface of the trailer, the suction cup 13 can be selected as a flexible suction cup.

[0043] In order to facilitate the understanding of this scheme, the following Figure 3-Figure 5 The working principle of the present invention is described in detail:

[0044] like Figure 3 As shown, when it is necessary to perform multi-point detection on the paint layer thickness of two interconnected planes on the trailer surface, the trailer paint layer thickness detection device in the embodiment of the present invention is attached to the two planes, and the suction cup 13 is adsorbed on the two planes. At this time, the trailer paint layer thickness detection device is folded according to the angle between the two planes, and at least the nut 31 in the pre-tightening component 3 at the chain link structure in the folded state is tightened ("at least" means that only the nut 31 at the chain link structure in the folded state can be tightened, or all the nuts 31 at all the chain link structures between the detection modules 1 attached to the surface to be tested can be tightened) to keep the chain link structure in the folded state in the folded state; read the indication of the detection head 121 in the detection module 1 attached to the surface to be tested, that is, the paint layer thickness at multiple positions on the two planes is obtained.

[0045] like Figure 4 As shown, when it is necessary to perform multi-point detection on the paint layer thickness of three interconnected planes on the trailer surface, the trailer paint layer thickness detection device in the embodiment of the present invention is attached to the three planes, and the suction cup 13 is adsorbed on the three planes. At this time, the trailer paint layer thickness detection device is folded according to the angles between the three planes, and at least the nut 31 in the pre-tightening component 3 at the chain link structure in the folded state is tightened ("at least" means that only the nut 31 at the chain link structure in the folded state can be tightened, or all the nuts 31 at the chain link structures between the detection modules 1 attached to the surface to be tested can be tightened) to keep the chain link structure in the folded state in the folded state; read the indication of the detection head 121 in the detection module 1 attached to the surface to be tested, that is, the paint layer thickness at multiple positions on the three planes is obtained.

[0046] It should be noted that when multi-point detection is performed on three planes at the same time, due to the influence of size, one of the three sections of the folded trailer paint layer thickness detection device may not fit tightly on the corresponding plane, such as Figure 4As shown, the trailer paint layer thickness detection device is folded into three sections from left to right. Since the top of the second section protrudes from the third plane, the third section of the trailer paint layer thickness detection device is at a large distance from the third plane, resulting in the suction cup 13 of the third section being unable to be adsorbed on the third plane. Figure 5 As shown; however, since the distance between the third section of the trailer paint layer thickness detection device and the third plane is relatively small at this time, the detection head 121 can be attached to the third plane by its own gravity, so the third plane can also be normally detected. However, when the distance between the third section of the trailer paint layer thickness detection device and the third plane is too large, resulting in the detection head 121 being unable to be attached to the third plane, the multi-point detection of the three planes at the same time can be abandoned, and only two planes can be detected.

[0047] Furthermore, when the trailer paint layer thickness detection device provided in the embodiment of the present invention is relatively long, more than three planes can be detected simultaneously, and the detection method is the same as the above process.

[0048] In summary, the trailer paint layer thickness detection device provided by the present invention can be folded into a shape adapted to the surface shape of the trailer and maintained in this shape by the pre-tightening component 3, thereby realizing multi-point detection of multiple planes on the trailer surface at the same time, so as to simultaneously detect the paint layer thickness at multiple positions, and has a higher detection efficiency.

[0049] It should be noted that although the present invention is disclosed as above by specific embodiments, the above embodiments are not intended to limit the present invention. Ordinary technicians in this field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A trailer paint layer thickness detection device, characterized in that: include: A plurality of linearly distributed detection modules (1), the detection module (1) comprising a mounting frame (11) and at least one detection component (12) arranged on the mounting frame (11), the detection component (12) comprising a detection head (121); A plurality of joint structures (2), adjacent mounting frames (11) are connected by the joint structures (2), and the joint structures (2) can support one of two adjacent detection modules (1) to flip relative to the other; A plurality of pre-tightening components (3) corresponding one to the joint structure (2), the pre-tightening components (3) being used to provide a corresponding pre-tightening force for the corresponding joint structure (2), so that the joint structure (2) is kept at a certain angle after being flipped by an external force.

2. A trailer paint layer thickness detection device according to claim 1, characterized in that: The joint structure (2) is a chain link structure, and a plurality of the chain link structures are hinged in sequence to form a flexible single chain.

3. A trailer paint layer thickness detection device according to claim 2, characterized in that: The chain link structure comprises a first chain plate (21), a second chain plate (22) and a pin shaft (23); the first chain plate (21) and the second chain plate (22), as well as adjacent chain link structures, are hingedly connected via the pin shaft (23); The detection module (1) is arranged in one-to-one correspondence with the first chain plate (21) or the second chain plate (22); through holes are provided at both ends of the mounting frame (11), and the pin shaft (23) is movably passed through the through holes and positioned.

4. A trailer paint layer thickness detection device according to claim 3, characterized in that: The number of the single chains is two, and the two single chains are arranged opposite to each other; The mounting frame (11) is located between the two single chains, and the two ends of the pin shaft (23) pass through the through hole and are respectively connected to the two single chains.

5. A trailer paint layer thickness detection device according to claim 4, characterized in that: The pin shaft (23) is a screw having a thread at one end and a nut at the other end. The pre-tightening assembly (3) comprises a nut (31) matching the thread. The nut (31) cooperates with the nut of the screw to respectively press the two single chains against the outer walls on both sides of the mounting frame (11).

6. The trailer paint layer thickness detection device according to claim 1, characterized in that: The detection assembly (12) further comprises a detection rod (122) and an elastic member (123); the mounting frame (11) is vertically provided with a mounting hole (111) matching the detection rod (122); the detection rod (122) is slidably arranged in the mounting hole (111); the detection head (121) is fixedly arranged at the bottom end of the detection rod (122); and the two ends of the elastic member (123) are respectively connected to the mounting frame (11) and the detection rod (122), so that the detection head (121) protrudes from the bottom of the mounting frame (11).

7. A trailer paint layer thickness detection device according to claim 6, characterized in that: The bottom of the mounting frame (11) is provided with a receiving cavity (112) which is in communication with the mounting hole (111), and at least a portion of the elastic member (123) is located in the receiving cavity (112).

8. The trailer paint layer thickness detection device according to claim 6, characterized in that: The detection assembly (12) further comprises a display (124) fixedly arranged on the top end of the detection rod (122), and the display (124) is electrically connected to the detection head (121).

9. The trailer paint layer thickness detection device according to claim 1, characterized in that: The detection module (1) also includes a plurality of suction cups (13) fixedly arranged at the bottom of the mounting frame (11).

10. A trailer paint layer thickness detection device according to claim 9, characterized in that: The suction cup (13) is a flexible suction cup.

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