Steel structure equidistance marking device

Abstract

The application discloses a kind of steel structure equidistance marking device, including mobile body and drive mechanism, the mobile body is provided with marking mechanism, operating mechanism and transmission mechanism, the drive mechanism includes drive track, the marking mechanism is connected with drive track by the operating mechanism and the transmission mechanism, when mobile body moves along drive track, the marking mechanism is intermittently left on steel structure Marking print.The marking mechanism of the application can be driven by the linkage of drive track, and the marking mechanism is driven to perform intermittent marking operation on steel structure, which is convenient to control, and does not need to install additional drive mechanism, thereby reducing its manufacturing cost.

Description

Technical Field

[0001] This invention relates to the field of machining technology, specifically to a steel structure equidistant marking device. Background Technology

[0002] During construction, steel structure materials, such as I-beams, H-beams, and steel plates, are typically transported to the construction site in standard lengths for ease of loading and transport. These materials are then cut to specific lengths on-site. Since construction is largely a standardized process, the length requirements for steel structures are usually in batches. Therefore, batch marking is necessary during cutting, especially for shorter materials. Manual measurement and marking are time-consuming and labor-intensive. Therefore, a steel structure equidistant marking device is needed to replace manual measurement and marking, reducing labor intensity. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned shortcomings by providing a steel structure equidistant marking device to replace the measurement and marking work of steel structure raw materials before cutting, thereby reducing labor intensity.

[0004] The technical solution adopted in this invention is:

[0005] A steel structure equidistant marking device includes a mobile body and a drive mechanism. The mobile body is equipped with a marking mechanism, a running mechanism and a transmission mechanism. The drive mechanism includes a drive rail. The marking mechanism is connected to the drive rail through the running mechanism and the transmission mechanism. When the mobile body moves along the drive rail, the marking mechanism intermittently leaves marking marks on the steel structure.

[0006] As a further optimization, the marking mechanism includes a marking head, and the operating mechanism includes a turntable. The turntable is rotatably mounted on the moving body, and a drive groove is provided on the end face of the turntable. The drive groove is an eccentric groove. The marking head is rolled in the drive groove of the turntable via rollers. The turntable is connected to a transmission mechanism. When the rollers are in the lower position in the drive groove, the marking head leaves a marking mark on the steel structure. When the marking head is in the higher position in the drive groove, the marking head disengages from the steel structure. When the turntable rotates, the marking head moves up and down, leaving marking marks on the steel structure at intervals.

[0007] As a further optimization, the marking mechanism also includes a pigment box and a connecting pipe. The marking head includes a marking block and a placement chamber. The placement chamber is a shell structure that matches the marking block. The two ends of the connecting pipe are respectively connected to the pigment box and the placement chamber, and the connecting pipe is connected to both the pigment box and the placement chamber. The top of the pigment box is provided with a feeding port, and a corresponding cover is provided on the feeding port.

[0008] As a further optimization, a switch control assembly is provided between the connecting pipe and the pigment box. The switch control assembly includes a mounting base and two sets of switch doors slidably mounted on the mounting base. The two switch doors are arranged opposite each other and have open and closed states. A first spring is provided between the switch doors and the mounting base. When the two switch doors are in the closed state, the first spring is in a stretched state. The moving body is provided with a control channel corresponding to the switch control assembly. The control channel includes a closing control part and a opening control part. The channel size of the closing control part is smaller than the channel size of the opening control part. The switch doors are located in the control channel. When the marking head is in the low position, the switch doors are in the opening control part and are in the open state. When the marking head is in the high position, the switch doors are in the closing control part and are in the closed state.

[0009] As a further optimization, the marking mechanism is also provided with a height adjustment component, which includes a connecting plate and a collar. The roller is rotatably mounted on one end of the connecting plate near the turntable. The roller is rolled in the drive groove of the turntable. The collar is rotatably connected to the connecting plate, and the rotation plane of the collar is parallel to the plane of the connecting plate. The inner ring of the collar is screwed onto the connecting pipe.

[0010] A second spring is also provided between the connecting plate and the moving body. When the marking head moves downward, the second spring is in a stretched state.

[0011] As a further optimization, the transmission mechanism includes an input shaft and an output shaft, the drive track includes a rack, one end of the input shaft is provided with a gear that matches the rack, the other end of the input shaft is connected to the output shaft, and the output shaft is directly / indirectly connected to the operating mechanism.

[0012] As a further optimization, the transmission mechanism also includes an adjusting shaft and at least two sets of conversion wheels. The conversion wheels are rotatably mounted in the movable body via a bracket. The output shaft is rotatably mounted in the movable body, and a driven wheel corresponding to each conversion wheel is fixedly mounted on the output shaft. Each conversion wheel and its corresponding driven wheel are connected by a belt. The transmission ratio between each set of conversion wheels and driven wheels is different. The adjusting shaft is equipped with a locking wheel, and a matching spline structure is provided between the locking wheel and the conversion wheel. The adjusting shaft is movably mounted in the movable body, and an adjusting handle is provided at the end of the adjusting shaft. By pushing the adjusting handle, the locking wheel on the adjusting shaft is engaged with a certain conversion wheel. The input shaft is connected to the adjusting shaft via a bevel gear structure, and the end of the output shaft is connected to the operating mechanism.

[0013] As a further optimization, it also includes fixed bodies set on both sides of the mobile body. Both the mobile body and the fixed body are C-shaped. During use, the steel structure material is placed in the C-shaped grooves of the mobile body and the fixed body. The drive rail passes through the fixed body and the mobile body in sequence. The upper part of the fixed body is provided with a clamping mechanism. The clamping mechanism includes an adjusting screw, which is screwed to the fixed body. The outer end of the adjusting screw is provided with a handwheel, and the inner end of the adjusting screw is provided with a pressure head. The lower side of the clamping mechanism is provided with a support frame.

[0014] As a further optimization, a locking mechanism is provided on the fixed body. The locking mechanism includes a contact plate, a connecting shaft, and a limiting block. The contact plate is fixedly connected to the connecting shaft, and the connecting shaft and the limiting block are slidably connected to the fixed body. A second spring is provided between the connecting shaft and the fixed body. When the contact plate is pushed, the limiting block has two states: it passes through the fixed body and engages with the drive rail, and it is not engaged. When the limiting block engages with the drive rail, the second spring is in a compressed state.

[0015] As a further optimization, the mobile body is provided with a rolling mechanism, which has two sets, upper and lower, arranged in a mirror symmetrical manner. The rolling mechanism includes a support plate, several rollers set on the support plate, and an adjusting stud for adjusting the height of the support plate. The adjusting stud is rotatably connected to the support plate, passes through the mobile body, and is screwed to the mobile body.

[0016] The present invention has the following advantages:

[0017] 1. The marking mechanism of the present invention can perform intermittent marking operations on a steel structure by driving the track, which is convenient to control and does not require additional drive mechanism installation, thus reducing its manufacturing cost.

[0018] 2. The marking mechanism of the present invention can adapt to steel structure raw materials of different heights and dimensions, and the marking spacing can be adjusted with one click by adjusting the handle, making it easy to operate;

[0019] 3. When the marking mechanism of the present invention is in a low position, it can replenish the pigment in time. When it is in a high position, it can close the replenishment channel to avoid unclear marking and pigment leakage. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] Figure 1 This is a three-dimensional structural diagram of the overall structure of the present invention;

[0023] Figure 2 This is a partial cross-sectional view of the overall structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the exploded structure of the fixed body in this invention;

[0025] Figure 4 This is a three-dimensional structural diagram of the driving track in this invention;

[0026] Figure 5 This is a longitudinal sectional view of the mobile body in this invention;

[0027] Figure 6 This is an exploded view of the operating mechanism of the present invention;

[0028] Figure 7 This is an exploded view of the internal transmission mechanism of the mobile body in this invention;

[0029] Figure 8 This is an exploded view of the marking mechanism in this invention;

[0030] Figure 9 This is a schematic diagram of the height adjustment component in this invention;

[0031] Figure 10 This is a schematic diagram showing the connection between the door opening / closing mechanism and the control channel in this invention.

[0032] The components include: 1. Steel structure equidistant marking device; 11. Fixed body; 111. Adjusting screw; 112. Track channel; 113. Contact plate; 114. Limiting clip; 115. Mounting slot; 116. Support bracket; 12. Moving body; 121. Inner groove; 122. Gear; 123. Top groove; 13. Drive track; 131. Rack; 14. Transmission mechanism; 141. Input shaft; 142. Bevel gear; 143. Adjusting shaft; 144. Output shaft; 145. Bracket; 146. First conversion wheel; 147. Second conversion wheel, 148-locking wheel, 149-adjusting handle, 15-operating mechanism, 151-protective cover, 152-turntable, 153-upper limit plate, 154-guide rod, 155-control channel, 16-marking mechanism, 161-placement compartment, 162-connecting plate, 163-roller, 164-ring, 165-paint box, 166-cover, 167-mounting base, 168-opening and closing door, 169-marking block, 17-rolling mechanism, 171-support plate, 172-roller, 173-pressure wheel. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other.

[0034] It should be understood that in the description of the embodiments of the present invention, terms such as "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance, nor as indicating or implying order. In the embodiments of the present invention, "multiple" refers to two or more.

[0035] In this embodiment of the invention, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, B existing alone, or both A and B existing simultaneously. Furthermore, in this document, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0036] This embodiment provides a specific implementation of a steel structure equidistant marking device 1. The specific implementation will be described in detail below with reference to the accompanying drawings. Figure 1 and Figure 2 As shown, the technical content of this embodiment specifically includes two sets of fixed bodies 11, one set of mobile bodies 12, and a drive rail 13. The two sets of fixed bodies 11 are arranged on both sides of the mobile body 12, and the fixed bodies 11 are fixedly installed on the machine platform or other positions for fixing the steel structure to be processed. The installation distance between the two sets of fixed bodies 11 can be determined according to the actual size of the steel structure to be processed at the construction site. The mobile body 12 is provided with a marking mechanism 16. During use, the two ends of the steel structure are clamped and fixed by the two sets of fixed bodies 11. The marking mechanism 16 on the mobile body 12 is connected to the slide rail through the transmission mechanism. When the mobile body 12 moves along the drive rail 13, the marking mechanism 16, driven by the drive rail 13, intermittently leaves marks on the steel structure in the direction along the slide rail.

[0037] Both sets of fixed bodies 11 and one set of mobile bodies 12 are C-shaped structures, meaning one side is open, allowing for compatibility with steel pipes, profiles, and even steel plates. The drive track 13 passes sequentially through one set of fixed bodies 11, one set of mobile bodies 12, and the other set of fixed bodies 11. Figure 3As shown, to facilitate the fixing of the steel structure material, both sets of fixing bodies 11 are equipped with clamping mechanisms. The clamping mechanism includes an adjusting screw 111, which passes through the upper part of the C-shaped structure of the fixing body 11 and is screwed to the fixing body 11. The upper end of the adjusting screw 111 is equipped with a handwheel, which allows for manual driving of the adjusting screw 111 to rotate and move it up and down. The lower end of the adjusting screw 111 is also equipped with a pressure head, which is used to directly contact the steel structure material. Therefore, the pressure head should avoid using rigid materials directly and can use materials such as wood, plastic, and rubber to avoid indentations and scratches on the steel structure material. The lower side of the clamping mechanism is equipped with a support bracket 116 for supporting the steel structure and leveling it. The support bracket 116 is installed at the lower end of the fixing body through the mounting groove 115.

[0038] To facilitate the connection between the fixed body 11 and the drive rail 13, both the fixed body 11 and the movable body 12 have rail channels 112 inside their C-shaped side walls. The drive rail 13 passes through the rail channels 112. Since the fixed body 11 needs to remain fixed to the drive rail 13 during operation, a locking mechanism is also installed on the side wall of the fixed body 11. This locking mechanism includes a contact plate 113, a guide shaft, and a limit lock 114. One end of both the guide shaft and the limit lock 114 is vertically connected to the contact plate 113, and both are slidably connected to the side wall of the fixed body 11. The other end of the guide shaft is provided with a limit ring to prevent separation between the guide shaft and the fixed body 11. A second spring is provided between the guide shaft and the fixed body 11. Figure 4 As shown, the drive track 13 includes a rack 131, and the end of the limiting card 114 is configured with a toothed structure corresponding to the rack. The connecting hole on the fixing body 11 and the limiting card 114 are connected to the track channel 112. The limiting card 114 has two states: it is inserted into the track channel 112 and engaged with the drive track 13, and it is not engaged with the drive track 112. When the limiting card 114 is engaged with the drive track 13, the second spring is in a compressed state. In use, the steel structure material presses against the contact plate 113 and further pushes the contact plate 113 to move inward until the limiting card 114 is engaged with the drive track 13, thus completing the fixed connection between the fixing body 11 and the drive track 13. In the non-use state, under the action of the second spring force, the limiting card 114 is disengaged from the drive track 13, and the fixing body 11 and the drive track 13 can slide relative to each other.

[0039] like Figure 2As shown, the mobile body 12 is equipped with a marking mechanism 16 and a transmission mechanism 14. The marking mechanism 16 is connected to the drive rail 13 via a rotating mechanism 15 and the transmission mechanism 14. When the mobile body 12 moves along the drive rail, the marking mechanism 16 intermittently leaves marks on the steel structure. The marking mechanism 16 includes a marking head. The rotating mechanism 15 drives the marking mechanism 16 to move up and down. The rotating mechanism includes a turntable 152, which is rotatably mounted on the mobile body 12. To ensure safe operation, a protective cover 151 is provided at the front end of the mobile body 12, and the turntable 152 is rotatably mounted inside the protective cover 151. Figure 6 As shown, a drive groove is provided on the end face of the turntable 152. The drive groove is an eccentric groove. The marking head is set in the drive groove of the turntable 152 by a roller. When the roller is in the low position in the drive groove, the marking head leaves a marking mark on the steel structure. When the marking head is in the high position in the drive groove, the marking head is detached from the steel structure. Therefore, when the turntable 152 rotates, the marking head has a state of up and down movement and leaves a marking mark on the steel structure at intervals.

[0040] like Figure 5 and Figure 7 As shown, in this embodiment, the turntable 152 is driven to rotate by a transmission mechanism 14. Specifically, the transmission mechanism includes an input shaft 141 and an output shaft 144. One end of the input shaft 141 is provided with a gear 122 that matches the rack of the drive track 13. The gear 122 is rotatably disposed in the inner groove 121 of the moving body 12. The other end of the input shaft 141 is connected to the output shaft 144 through a pair of bevel gears. The output shaft 144 is directly / indirectly connected to the marking structure. That is, when the moving body 12 slides along the drive track 13, the gear 122 is driven to rotate by the meshing connection between the gear and the rack, and the rotation of the input shaft 141 and the output shaft 144 transmits power to the turntable 152.

[0041] To adjust the marking spacing, the transmission mechanism 14 also includes an adjusting shaft 143 and at least two sets of conversion wheels, such as... Figure 7As shown, this embodiment includes two sets of conversion wheels: a first conversion wheel 146 and a second conversion wheel 147. Both the first conversion wheel 146 and the second conversion wheel 147 are rotatably mounted in the top groove 123 of the moving body 12 via a bracket 145. The output shaft 144 is rotatably mounted in the top groove 123 of the moving body 12, and a driven wheel corresponding to the first conversion wheel 146 and the second conversion wheel 147 is fixedly mounted on the output shaft 144. Each conversion wheel is connected to its corresponding driven wheel via a belt. The transmission ratios between the first conversion wheel 146 and the second conversion wheel 147 and the driven wheel are different. The adjusting shaft 14... The 3 is provided with a locking wheel 148, and the locking wheel 148 is provided with a matching spline structure between it and the two sets of conversion wheels. The adjusting shaft 143 is movably disposed in the moving body 12, and the end of the adjusting shaft 143 is provided with an adjusting handle 149. The adjusting handle 149 extends out of the top groove 123 of the moving body 12. By pushing the adjusting handle 149, the locking wheel 148 on the adjusting shaft 143 is in a meshing connection state with the first conversion wheel 146 or the second conversion wheel 147. The input shaft 141 is connected to the adjusting shaft 143 through a bevel gear structure, and the end of the output shaft 144 is fixedly connected to the turntable 152.

[0042] like Figure 8As shown, in this embodiment, the marking mechanism 16 further includes a pigment box 165 and a connecting pipe. The marking head includes a marking block 169 and a placement chamber 161. The placement chamber 161 is a shell structure that matches the marking block 169. The two ends of the connecting pipe are respectively connected to the pigment box 165 and the placement chamber 161, and the connecting pipe is connected to both the pigment box 165 and the placement chamber 161. The top of the pigment box 165 is provided with a filling port, and a cover 166 is correspondingly provided on the filling port. A switch control assembly is provided between the connecting pipe and the pigment box 165. The switch control assembly includes a mounting base 167 and two sets of switch doors 168 slidably disposed on the mounting base 167. The two switch doors 168 are arranged opposite to each other. There are open and closed states between the two doors 168. A first spring is provided between the door 168 and the mounting base 168. When both doors 168 are in the closed state, the first spring is stretched. A control channel 155 is provided on the outer cover 151 of the turntable 152. The control channel 155 includes a closing control part and a opening control part. The channel size of the closing control part is smaller than that of the opening control part. The door 168 is located within the control channel 155. When the marking head is in the low position, the door 168 is in the opening control part and is in the open state. When the marking head is in the high position, the door 168 is in the closing control part and is in the closed state. The door 168 is designed to prevent the pigment in the pigment box 165 from constantly flowing out. By intermittently opening and closing the door, the pigment in the marking block 169 is replenished, which ensures the reasonable amount of pigment used and avoids pigment dripping.

[0043] like Figure 9 and 10As shown, because different steel structure materials have varying thicknesses, the marking mechanism is also equipped with a height adjustment component to accommodate steel structure materials of different thicknesses. The height adjustment component includes a connecting plate 162 and a collar 164. A roller 163 is rotatably mounted on one end of the connecting plate 162 near the turntable 152. The roller 163 is rolled within the drive groove of the turntable 152. The collar 164 is rotatably connected to the connecting plate 162, and the plane of rotation of the collar 164 is parallel to the plane of the connecting plate 162. The inner... The collar 164 is screwed onto the connecting pipe. By rotating the collar 164, the connection position of the collar 164 on the connecting pipe can be adjusted to adapt to steel structures of different thicknesses. A third spring is also provided between the connecting plate 164 and the protective cover 151. An upper limit plate 153 is provided at the upper end of the protective cover, and multiple guide rods 154 are provided at the lower part of the upper limit plate 153. The third spring is provided between the connecting plate 162 and the upper limit plate 153, and the connecting plate 162 is slidably connected to the guide rods 154. When the marking head moves downward, the third spring is in a stretched state.

[0044] To facilitate the movement of the mobile body 12 along the steel structure, a rolling mechanism 17 is provided on the mobile body 12. The rolling mechanism 17 has two sets, upper and lower, which are arranged in a mirror symmetrical manner. The rolling mechanism 17 includes a support plate 171, a plurality of pressure rollers 172 disposed on the support plate 171, and an adjusting stud for adjusting the height of the support plate 17. The pressure rollers 172 are disposed on the support plate 171 via rollers. The adjusting stud is rotatably connected to the support plate 171. The adjusting stud passes through the mobile body 12 and is screwed to the mobile body 12.

[0045] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A steel structure equidistant marking device, characterized in that: It includes a mobile body and a drive mechanism. The mobile body is equipped with a marking mechanism, a running mechanism and a transmission mechanism. The drive mechanism includes a drive rail. The marking mechanism is connected to the drive rail through the running mechanism and the transmission mechanism. When the mobile body moves along the drive rail, the marking mechanism intermittently leaves marking marks on the steel structure. The marking mechanism includes a marking head, and the operating mechanism includes a turntable. The turntable is rotatably mounted on a moving body. A drive groove is provided on the end face of the turntable. The drive groove is an eccentric groove. The marking head is rolled in the drive groove of the turntable via rollers. The turntable is connected to a transmission mechanism. When the rollers are at the low position in the drive groove, the marking head leaves a marking mark on the steel structure. When the marking head is at the high position in the drive groove, the marking head disengages from the steel structure. When the turntable rotates, the marking head moves up and down and leaves marking marks on the steel structure at intervals. The marking mechanism also includes a pigment box and a connecting pipe. The marking head includes a marking block and a placement chamber. The placement chamber is a shell structure that matches the marking block. The two ends of the connecting pipe are respectively connected to the pigment box and the placement chamber, and the connecting pipe is connected to both the pigment box and the placement chamber. The top of the pigment box is provided with a filling port and a corresponding cover is provided on the filling port. A switch control assembly is provided between the connecting pipe and the pigment box. The switch control assembly includes a mounting base and two sets of switch doors slidably mounted on the mounting base. The two switch doors are arranged opposite each other and have open and closed states. A first spring is provided between the switch doors and the mounting base. When the two switch doors are in the closed state, the first spring is in a stretched state. The moving body is provided with a control channel corresponding to the switch control assembly. The control channel includes a closing control part and a opening control part. The channel size of the closing control part is smaller than the channel size of the opening control part. The switch doors are located in the control channel. When the marking head is in the low position, the switch doors are in the opening control part and are in the open state. When the marking head is in the high position, the switch doors are in the closing control part and are in the closed state.

2. The steel structure equidistant marking device according to claim 1, characterized in that: The marking mechanism is also provided with a height adjustment component, which includes a connecting plate and a collar. The roller is rotatably mounted on one end of the connecting plate near the turntable. The roller is rolled in the drive groove of the turntable. The collar is rotatably connected to the connecting plate, and the rotation plane of the collar is parallel to the plane of the connecting plate. The inner ring of the collar is screwed onto the connecting pipe. A second spring is also provided between the connecting plate and the moving body. When the marking head moves downward, the second spring is in a stretched state.

3. The steel structure equidistant marking device according to claim 1, characterized in that: The transmission mechanism includes an input shaft and an output shaft. The drive track includes a rack. One end of the input shaft is provided with a gear that matches the rack. The other end of the input shaft is connected to the output shaft. The output shaft is directly or indirectly connected to the operating mechanism.

4. The steel structure equidistant marking device according to claim 3, characterized in that: The transmission mechanism further includes an adjusting shaft and at least two sets of conversion wheels. The conversion wheels are rotatably mounted in the movable body via a bracket. The output shaft is rotatably mounted in the movable body, and a driven wheel corresponding to each conversion wheel is fixedly mounted on the output shaft. Each conversion wheel and its corresponding driven wheel are connected by a belt. The transmission ratio between each set of conversion wheels and driven wheels is different. The adjusting shaft is equipped with a locking wheel, and a matching spline structure is provided between the locking wheel and the conversion wheel. The adjusting shaft is movably mounted in the movable body, and an adjusting handle is provided at the end of the adjusting shaft. By pushing the adjusting handle, the locking wheel on the adjusting shaft is engaged with a certain conversion wheel. The input shaft is connected to the adjusting shaft via a bevel gear structure, and the end of the output shaft is connected to the operating mechanism.

5. The steel structure equidistant marking device according to claim 1, characterized in that: It also includes fixed bodies set on both sides of the mobile body. Both the mobile body and the fixed body are C-shaped. During use, the steel structure material is placed in the C-shaped grooves of the mobile body and the fixed body. The drive rail passes through the fixed body and the mobile body in sequence. A clamping mechanism is set on the upper part of the fixed body. The clamping mechanism includes an adjusting screw. The adjusting screw is screwed to the fixed body. A handwheel is set on the outer end of the adjusting screw, and a pressure head is set on the inner end of the adjusting screw. A support frame is set on the lower side of the clamping mechanism.

6. The steel structure equidistant marking device according to claim 5, characterized in that: The fixed body is provided with a locking mechanism, which includes a contact plate, a connecting shaft, and a limiting block. The contact plate is fixedly connected to the connecting shaft, and the connecting shaft and the limiting block are slidably connected to the fixed body. A second spring is provided between the connecting shaft and the fixed body. When the contact plate is pushed, the limiting block has two states: it passes through the fixed body and engages with the drive rail, and it is not engaged. When the limiting block engages with the drive rail, the second spring is in a compressed state.

7. The steel structure equidistant marking device according to claim 1, characterized in that: The mobile body is provided with a rolling mechanism, which has two sets, one upper and one lower, arranged in a mirror image. The rolling mechanism includes a support plate, several rollers on the support plate, and an adjusting stud for adjusting the height of the support plate. The adjusting stud is rotatably connected to the support plate, passes through the mobile body, and is screwed to the mobile body.

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