Detection device and printing trolley

Abstract

The embodiment of the utility model relates to the technical field of printing equipment, and particularly discloses a detection device and a printing dolly, the detection device comprises a support, a reflection assembly and a laser sensor, the reflection assembly is arranged on one side of the support, and the laser sensor is arranged on the other side of the support. The laser sensor comprises a shell, a transmitting module, a receiving module and a control module, the transmitting module, the receiving module and the control module are all arranged in the shell, the transmitting module and the receiving module are both in communication connection with the control module, the transmitting module is used for transmitting laser to the reflection assembly, and the receiving module is used for receiving the laser reflected by the reflection assembly. And the control module is used for obtaining detection information according to the laser emitted by the emitting module and the laser received by the receiving module. By means of the mode, the detection device achieves non-contact detection through the laser sensor, and the detection sensitivity and accuracy are improved.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model relates to the technical field of printing equipment, in particular to a detection device and a printing trolley. BACKGROUND

[0002] Digital printing machine refers to a kind of high-precision, high-efficiency printing equipment using digital control technology, which directly sprays patterns or characters on fabric or other media. In the working process of digital printing machine, the printing trolley carries the nozzle and moves back and forth above the fabric according to the preset pattern and path to realize accurate spraying of the pattern. However, during the working process of the printing trolley, various unpredictable factors such as paper debris, ink droplet splashing and external object intrusion may cause obstacles in front of the nozzle, thereby affecting the normal operation of the printing trolley and the printing effect. Currently, the detection of obstacles in front of the nozzle usually uses mechanical trigger devices, for example, physical stop blocks and microswitches are used. If an obstacle is encountered during the movement of the printing trolley, the physical stop block will first contact and trigger the microswitch, thereby sending an alarm signal or stopping the operation of the printing trolley.

[0003] In the process of implementing the embodiments of the present application, the inventors found that the sensitivity of the mechanical trigger type detection device is low. When the obstacle is small or relatively soft, the obstacle cannot effectively trigger the physical stop block and thus trigger the microswitch, resulting in the detection device failing to timely discover the obstacle and thus causing damage to the nozzle. UTILITY MODEL CONTENT

[0004] In view of the above problems, the embodiments of the utility model provide a detection device and a printing trolley, which overcome the above problems or at least partially solve the above problems.

[0005] To solve the above technical problems, one technical scheme adopted by the utility model is to provide a detection device, which comprises a support, a reflection assembly and a laser sensor. The reflection assembly is arranged on one side of the support, and the laser sensor is arranged on the other side of the support. The laser sensor comprises a shell, a transmitting module, a receiving module and a control module. The transmitting module, the receiving module and the control module are all arranged in the shell. The transmitting module and the receiving module are in communication connection with the control module. The transmitting module is used for transmitting laser to the reflection assembly, the receiving module is used for receiving laser reflected by the reflection assembly, and the control module is used for obtaining detection information according to the laser transmitted by the transmitting module and the laser received by the receiving module.

[0006] In some embodiments, the housing is provided with a transceiving window, the receiving module and the transmitting module are both aligned with the transceiving window, the transceiving window is used for the laser emitted by the transmitting module to exit, and the laser reflected by the reflecting assembly to enter the receiving module.

[0007] In some embodiments, the detection device further comprises a reflecting prism, the reflecting prism is arranged on the other side of the bracket, the reflecting prism is aligned with the reflecting assembly along a first direction, the reflecting prism is aligned with the transceiving window along a second direction, the laser emitted by the transmitting module is reflected by the reflecting prism to the reflecting assembly, the reflecting assembly reflects the laser back to the reflecting prism, and the laser enters the receiving module after being reflected by the reflecting prism again, wherein the first direction refers to the direction from the other side of the bracket to the side of the bracket, and the first direction is perpendicular to the second direction.

[0008] In some embodiments, the detection device further comprises a first mounting bracket, the first mounting bracket is arranged on the other side of the bracket, and the reflecting prism and the laser sensor are both mounted on the first mounting bracket.

[0009] In some embodiments, the detection device further comprises an adjusting assembly, the adjusting assembly is arranged on the first mounting bracket, the laser sensor is arranged on the adjusting assembly, and the adjusting assembly is used to adjust the position of the laser sensor relative to the reflecting prism.

[0010] In some embodiments, the adjusting assembly comprises an adjusting bracket and a first screw, the laser sensor is arranged on the adjusting bracket, the adjusting bracket is provided with a first waist-shaped through hole extending along the first direction, the first mounting bracket is provided with a first screw hole, and the first screw is used to be screwed into the first screw hole after passing through the first waist-shaped through hole.

[0011] In some embodiments, the adjusting bracket is provided with a second waist-shaped through hole extending along the second direction, the shell of the laser sensor is provided with a second screw hole, the adjusting assembly further comprises a second screw, and the second screw is used to be screwed into the second screw hole after passing through the second waist-shaped through hole.

[0012] In some embodiments, the detection device further comprises a second mounting bracket, the second mounting bracket comprising a bracket body, a rotating rod and a locking member, the bracket body being configured to be connected to the bracket, one end of the rotating rod being arranged in the bracket body, the reflecting assembly being fixed to the other end of the rotating rod, the rotating rod being rotatable relative to the bracket body, and the locking member being connected to the bracket body and the rotating rod respectively, the bracket body and the rotating rod being fixed when the locking member is in a locked state, and the rotating rod being allowed to rotate relative to the bracket body when the locking member is in an unlocked state.

[0013] In some embodiments, the housing is provided with a transmitting window and a receiving window, the transmitting module is aligned with the transmitting window, and the receiving module is aligned with the receiving window, the transmitting window being configured to allow the laser emitted by the transmitting module to exit, and the receiving window being configured to allow the laser reflected by the reflecting assembly to enter the receiving module.

[0014] To solve the above technical problems, the utility model provides another technical scheme, which is a printing trolley, comprising a printing trolley body, a nozzle and the detection device described above, the nozzle is arranged at the bottom of the printing trolley body, the printing trolley body can reciprocate along a third direction, the detection device is arranged on at least one side of the printing trolley body along the third direction, and the third direction is perpendicular to the direction from the other side of the bracket to the side of the bracket.

[0015] The utility model embodiment has the advantages that, different from the prior art, the utility model embodiment provides a detection device and a printing trolley, the detection device comprises a bracket, a reflecting assembly and a laser sensor, the reflecting assembly is arranged on one side of the bracket, the laser sensor is arranged on the other side of the bracket, the laser sensor comprises a housing, a transmitting module, a receiving module and a control module, the transmitting module, the receiving module and the control module are arranged in the housing, the transmitting module and the receiving module are in communication connection with the control module, the transmitting module is used for transmitting laser to the reflecting assembly, the receiving module is used for receiving laser reflected by the reflecting assembly, and the control module is used for obtaining detection information according to the laser transmitted by the transmitting module and the laser received by the receiving module. In the above manner, the detection device realizes non-contact detection through the laser sensor, and the detection sensitivity and accuracy are improved compared with a mechanical trigger type detection device. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the drawings without creative labor.

[0017] Figure 1 is a perspective view of the detection device provided by the embodiments of the present application;

[0018] Figure 2 is an enlarged explosion view of the laser sensor, the reflecting prism, the adjusting assembly and the first mounting bracket from one perspective provided by the embodiments of the present application;

[0019] Figure 3 is an enlarged explosion view of the laser sensor, the reflecting prism, the adjusting assembly and the first mounting bracket from another perspective provided by the embodiments of the present application;

[0020] Figure 4 is a structural schematic view of the laser sensor provided by the embodiments of the present application;

[0021] Figure 5 is an enlarged explosion view of the reflecting assembly and the second mounting bracket provided by the embodiments of the present application. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present application, the following will be more detailed description of the present application in combination with the drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element, or one or more intervening elements can exist therebetween. When an element is described as "connected to" another element, it can be directly connected to another element, or one or more intervening elements can exist therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in the specification are only for the purpose of illustration.

[0023] Unless otherwise defined, all technical and scientific terms used in the specification are the same as those commonly understood by those skilled in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments, and are not used to limit the present application. The term "and / or" used in the specification includes any and all combinations of one or more related listed items.

[0024] Please refer to Figure 1The detection device 100 comprises a support 1, a first mounting support 2, a reflecting prism 3, a laser sensor 4, an adjusting assembly 5, a second mounting support 6 and a reflecting assembly 7. The second mounting support 6 is mounted on one side of the support 1, the first mounting support 2 is mounted on the other side of the support 1, the laser sensor 4, the reflecting prism 3 and the adjusting assembly 5 are all mounted on the first mounting support 2. The laser sensor 4 is used for emitting laser and receiving laser reflected by the reflecting assembly 7, and detection information is obtained according to the emitted laser and the received laser. The reflecting prism 3 is used for reflecting and transmitting the laser emitted by the laser sensor 4 to the reflecting assembly 7, and the reflecting assembly 7 is used for reflecting the laser back to the laser sensor 4.

[0025] For the first mounting support 2, please refer to Figure 2 and Figure 3 The first mounting support 2 comprises a main body 21 and a connecting part 22 arranged in sequence along the third direction z. The connecting part 22 is used for connecting with the support 1. The main body 21 is provided with a through slot 210, a mounting plane 211 and a first screw hole 212. The mounting plane 211 is located at one end of the main body 21 along the second direction y, and is used for mounting the laser sensor 4 and the adjusting assembly 5. The first screw hole 212 is located at the mounting plane 211, and is used for fixing the adjusting assembly 5 to the mounting plane 211 by a bolt. The through slot 210 penetrates through the main body 21 along the second direction y, and is used for mounting the reflecting prism 3.

[0026] For the reflecting prism 3, please refer to Figure 2 and Figure 3 The reflecting prism 3 is arranged at the bottom of the through slot 210 along the second direction y. The reflecting prism 3 is aligned with the laser sensor 4 along the second direction y, and is aligned with the reflecting assembly 7 along the first direction x. The reflecting prism 3 is a right-angle prism. Two rectangular right-angle faces of the reflecting prism 3 are parallel to the first direction x and the second direction y respectively. A rectangular inclined face of the reflecting prism 3 is arranged correspondingly to the laser sensor 4.

[0027] It should be noted that the first direction x refers to the direction from the other side of the support 1 to the one side of the support 1, and the second direction y refers to the direction from the top of the first mounting support 2 to the bottom of the first mounting support 2. The first direction x, the second direction y and the third direction z are perpendicular to each other.

[0028] For the laser sensor 4, please refer to 2 to Figure 4The laser sensor 4 comprises a housing 41, a transmitting module 42, a receiving module 43 and a control module 44, the transmitting module 42, the receiving module 43 and the control module 44 are all arranged in the housing 41, the transmitting module 42 and the receiving module 43 are in communication connection with the control module 44, the transmitting module 42 is used for transmitting laser, the receiving module 43 is used for receiving the laser reflected by the reflecting assembly 7, and the control module 44 is used for obtaining detection information according to the laser transmitted by the transmitting module 42 and the laser received by the receiving module 43. The housing 41 is provided with a transceiving window 410, the receiving module 43 and the transmitting module 42 are aligned with the transceiving window 410, and the transceiving window 410 is correspondingly arranged with the reflecting prism 3, the transceiving window 410 is used for the laser transmitted by the transmitting module 42 to exit, and the laser reflected by the reflecting assembly 7 to enter the receiving module 43. The transceiving window 410 is arranged obliquely relative to the first direction x. The housing 41 is further provided with a second screw hole, and the second screw hole is used for the bolt to fix the laser sensor 4 with the adjusting assembly 5.

[0029] It can be understood that the laser sensor 4 is not limited to the structure described above, but can also be other structures, for example, in some embodiments, the housing 41 is provided with a transmitting window and a receiving window, the transmitting module 42 is aligned with the transmitting window, the transmitting window is correspondingly arranged with the reflecting prism 3, the receiving module 43 is aligned with the receiving window, and the transmitting window is used for the laser transmitted by the transmitting module 42 to exit, and the receiving window is used for the laser reflected by the reflecting assembly 7 to enter the receiving module 43.

[0030] It should be noted that the detection information refers to the data calculated by the laser sensor 4 according to the time difference, intensity change, phase difference or other related parameters between the transmitted laser and the received reflected laser, which can directly or indirectly reflect the key information such as the distance, position, speed, shape, surface characteristics or existence of the target object. The related algorithm executed by the control module 44 of the laser sensor 4 is the prior art, which will not be described here.

[0031] For the above-mentioned adjusting assembly 5, please refer to Figure 2 and Figure 3 The adjusting assembly 5 comprises an adjusting bracket 51, a first bolt (not shown in the figure) and a second bolt (not shown in the figure), the laser sensor 4 is arranged in the adjusting bracket 51, the adjusting bracket 51 is provided with a first waist-shaped through hole 511 and a second waist-shaped through hole 512, the first waist-shaped through hole extends along the first direction x, and the second waist-shaped through hole 512 extends along the second direction y. The first bolt is used for being fixed to the first screw hole 212 after penetrating through the first waist-shaped through hole 511, so as to fix the adjusting bracket 51 and the laser sensor 4 to the first mounting bracket 2. The second bolt is used for being fixed to the second screw hole after penetrating through the second waist-shaped through hole 512, so as to fix the laser sensor 4 to the adjusting bracket 51.

[0032] It can be understood that the laser sensor 4 and the adjusting bracket 51 are fixed by the cooperation of the second bolt, the second waist-shaped through hole 512 and the second threaded hole, and the second waist-shaped through hole 512 is arranged to enable adjustment of the inclination angle of the laser sensor 4 relative to the mounting plane 211, specifically, by loosening the second bolt, the laser sensor 4 is finely adjusted along the second direction y within the length range of the second waist-shaped through hole 512, and then the second bolt is tightened, so as to adjust the inclination angle of the laser sensor 4 relative to the mounting plane 211, to ensure that the emitted laser of the laser sensor 4 is vertically sent to the emission prism along the second direction y.

[0033] The adjusting bracket 51 and the laser sensor 4 connected with the adjusting bracket 51 are fixed to the mounting plane 211 by the cooperation of the first bolt, the first waist-shaped through hole 511 and the first threaded hole 212, and the first waist-shaped through hole 511 is arranged to enable adjustment of the position of the laser sensor 4 relative to the reflection prism 3 along the first direction x, specifically, by loosening the first bolt, the adjusting bracket 51 is moved along the first direction x within the length range of the first waist-shaped through hole 511, and then the first bolt is tightened, so as to adjust the position of the laser sensor 4 connected with the adjusting bracket 51 relative to the reflection prism 3 along the first direction x. Further, since the rectangular inclined surface of the reflection prism 3 is arranged corresponding to the transceiving window 410 of the laser sensor 4 along the second direction y, when the laser sensor 4 is located at different positions relative to the rectangular inclined surface along the first direction x, the emitted laser will fall on different height positions of the rectangular inclined surface, so that the reflection prism 3 reflects the emitted laser at different height positions, thereby adjusting the height position of the laser between the reflection prism 3 and the reflection assembly 7.

[0034] For the second mounting bracket 6 described above, please refer to Figure 5 The second mounting bracket 6 includes a bracket body 61, a rotating rod 62 and a locking member (not shown in the figure), the bracket body 61 is used to be connected with the bracket 1, one end of the rotating rod 62 is arranged in the bracket body 61, the reflection assembly 7 is fixed to the other end of the rotating rod 62, and the rotating rod 62 can rotate relative to the bracket body 61. The locking member is connected with the bracket body 61 and the rotating rod 62 respectively, when the locking member is in a locked state, the bracket body 61 and the rotating rod 62 are fixed, and when the locking member is in an unlocked state, the rotating rod 62 is allowed to rotate relative to the bracket body 61. Further, the reflection assembly 7 can rotate relative to the bracket body 61 with the rotating rod 62, so as to adjust the reflection angle of the reflection assembly 7.

[0035] In some embodiments, the adjusting member is a third bolt, the bracket body 61 is provided with a threaded through hole, and the third bolt abuts against the rotating rod 62 after passing through the threaded through hole of the bracket body 61, so as to fix the bracket body 61 and the rotating rod 62.

[0036] For the reflection assembly 7 described above, please refer to Figure 5The reflection assembly 7 includes a plane mirror 71 and a mirror seat 72, the mirror seat 72 is fixed to the other end of the rotating rod 62, and the plane mirror 71 is fixed to the mirror seat 72. When the emission plane of the plane mirror 71 is perpendicular to the first direction x, the plane mirror 71 reflects the laser emitted by the reflection prism 3 back along the original light path, thereby reducing the energy loss of the laser in the transmission process and ensuring that the laser can accurately return into the transceiver window 410 of the laser sensor 4.

[0037] It can be understood that the detection device 100 can be applied to various measurement and detection scenes, and based on the transmission characteristics of the laser and the optical reflection principle, the distance, position, speed and the like of the target object are measured, or the existence, shape characteristics and the like of the object are detected. Especially in the application scene where the height of the target detection area in the second direction y is limited or the laser path needs to be accurately controlled, the detection device 100 has good adaptability and practicability. Specifically, for example, when the detection device is arranged on the side wall of the printing trolley and used to detect whether there is an obstacle in the moving direction of the nozzle, since the distance between the bottom of the nozzle and the surface of the printing medium is usually a few millimeters, if the height of the detection laser passing through the moving area of the nozzle is adjusted by adjusting the vertical height of the laser sensor, the printing trolley and the printing medium surface will be limited, which will affect the accuracy of the detection. The detection device 100 in the present application indirectly adjusts the height of the detection laser from the vertical direction to the horizontal direction through the reflection prism 3 and the adjusting assembly 5, which not only reduces the risk of collision between the detection device 100 and the printing medium surface during the adjustment process, but also improves the accuracy and flexibility of the adjustment. Similarly, the detection device 100 reflects the detection laser back through the reflection assembly 7 and can adjust the reflection angle. Compared with directly adjusting the angle or position of the laser sensor, the detection device 100 has higher flexibility and accuracy in the scene where the space is limited or the laser path needs to be finely adjusted.

[0038] In the embodiment of the present application, the detection device 100 realizes non-contact detection of the area in front of the support 1 through the cooperation of the laser sensor 4, the reflection prism 3 and the reflection assembly 7, and compared with the contact trigger type detection device 100, the detection sensitivity and accuracy are improved, and mechanical wear or damage caused by contact detection can be avoided.

[0039] The utility model also provides printing trolley embodiment, printing trolley includes printing trolley body, nozzle and above-mentioned detection device 100, for the structure and function of detection device 100 can refer to the above-mentioned embodiment, here will not be elaborated one by one.

[0040] The nozzle is arranged at the bottom of the printing trolley body, the printing trolley body can move back and forth along the third direction z, and the detection device 100 is arranged on at least one side of the printing trolley body along the third direction z. The bracket 1 is installed on the side wall of at least one side of the printing trolley body along the third direction z, and the laser between the reflecting prism 3 and the reflecting assembly 7 is used to detect the obstacle condition in the moving direction of the nozzle, so as to avoid the collision between the nozzle and the obstacle. In the working process of the printing trolley, if an obstacle appears in front of the nozzle, the obstacle will block the transmission path of the laser, so that the receiving module 43 cannot receive the reflected laser or the received laser intensity is significantly reduced, and the control module 44 can judge that there is an obstacle in front according to the change, and an alarm signal or the operation of the printing trolley is stopped in time, so that the nozzle is effectively protected from damage.

[0041] Preferably, the detection device 100 is arranged on both sides of the printing trolley body along the third direction z, so as to ensure that the obstacle condition in the moving direction of the nozzle can be effectively detected when the printing trolley body moves along the third direction z and the opposite direction of the third direction z.

[0042] In addition, the bracket 1 protrudes from the surface of the printing trolley body, and the bracket 1 not only provides a stable installation basis for the detection device 100 and improves the optical path stability of the detection device 100 during the movement of the printing trolley, but also expands the detection range, so that the detection device 100 can detect the obstacle in the moving direction of the nozzle earlier, provides a longer reaction time for the printing trolley, and further improves the safety of obstacle avoidance.

[0043] In the embodiment of the utility model, the printing trolley realizes real-time and high-precision detection of the obstacle in front of the nozzle through the detection device 100, and effectively improves the safety and reliability in the printing process.

[0044] It should be noted that the specification and drawings of the utility model provide a preferred embodiment of the utility model, but the utility model can be realized in many different forms, and is not limited to the embodiments described in the specification. These embodiments are not additional limitations on the content of the utility model, and the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Furthermore, the above technical features continue to combine to form various embodiments not listed above, which are considered to be within the scope of the utility model specification; further, for those skilled in the art, the above description can be improved or changed, and all these improvements and changes should belong to the protection scope of the utility model claims.

Claims

1. A detection device, characterized in that, The detection device comprises: a support; a reflection component arranged on one side of the support; a laser sensor arranged on the other side of the support, the laser sensor comprising a housing, a transmitting module, a receiving module and a control module, the transmitting module, the receiving module and the control module being arranged in the housing, the transmitting module and the receiving module being in communication connection with the control module, the transmitting module being configured to emit laser to the reflection component, the receiving module being configured to receive laser reflected by the reflection component, and the control module being configured to obtain detection information according to the laser emitted by the transmitting module and the laser received by the receiving module.

2. The detection device according to claim 1, wherein the housing is provided with a transceiving window, the receiving module and the transmitting module are aligned with the transceiving window, and the transceiving window is configured to allow the laser emitted by the transmitting module to exit and allow the laser reflected by the reflection component to enter the receiving module.

3. The detection device of claim 2, wherein , The detection device further comprises a reflection prism arranged on the other side of the support, the reflection prism being aligned with the reflection component along a first direction and being aligned with the transceiving window along a second direction, the laser emitted by the transmitting module is reflected by the reflection prism to the reflection component, the reflection component reflects the laser back to the reflection prism, and the laser is reflected by the reflection prism to enter the receiving module, wherein the first direction refers to the direction from the other side of the support to the one side of the support, and the first direction is perpendicular to the second direction.

4. The detection device of claim 3, wherein , The detection device further comprises a first mounting support arranged on the other side of the support, and the reflection prism and the laser sensor are mounted on the first mounting support.

5. The detection device according to claim 4, wherein the detection device further comprises an adjusting component arranged on the first mounting support, and the laser sensor is arranged on the adjusting component, and the adjusting component is configured to adjust the position of the laser sensor relative to the reflection prism.

6. The detection device according to claim 5, wherein the adjusting component comprises an adjusting support and a first screw, the laser sensor is arranged on the adjusting support, the adjusting support is provided with a first waist-shaped through hole extending along the first direction, the first mounting support is provided with a first screw hole, and the first screw is configured to pass through the first waist-shaped through hole and be screwed into the first screw hole.

7. The detection device according to claim 6, wherein the adjusting support is provided with a second waist-shaped through hole extending along the second direction, and the housing of the laser sensor is provided with a second screw hole; the adjusting component further comprises a second screw, and the second screw is configured to pass through the second waist-shaped through hole and be screwed into the second screw hole.

8. The detection device according to any one of claims 1-7, wherein The detection device further comprises a second mounting bracket, the second mounting bracket comprising a bracket body, a rotating rod and a locking member, the bracket body being configured to be connected to the bracket, one end of the rotating rod being arranged in the bracket body, the reflecting assembly being fixed to the other end of the rotating rod, the rotating rod being capable of rotating relative to the bracket body; The locking member is connected to the bracket body and the rotating rod respectively, when the locking member is in a locked state, the bracket body and the rotating rod are fixed, when the locking member is in an unlocked state, the rotating rod is allowed to rotate relative to the bracket body.

9. The detection device according to claim 1, wherein, The shell is provided with a transmitting window and a receiving window, the transmitting module is aligned with the transmitting window, the receiving module is aligned with the receiving window, the transmitting window is configured to allow the laser emitted by the transmitting module to exit, and the receiving window is configured to allow the laser reflected by the reflecting assembly to enter the receiving module.

10. A print carriage, characterized by, The printing carriage body, the nozzle and the detection device according to any one of claims 1-9 are included. The nozzle is arranged at the bottom of the printing carriage body, the printing carriage body is capable of reciprocating along a third direction, and the detection device is arranged on at least one side of the printing carriage body along the third direction, Wherein, the third direction is perpendicular to the direction from the other side of the bracket to the one side of the bracket.

Images