Building construction tool with safety monitoring function

Abstract

The utility model relates to a building construction tool with a safety monitoring function. A detection part, a plug pin and a tensioning element are arranged at the end part of a scaffold cross rod of the building construction tool. A pair of elastic arms is arranged on the plug pin, and arc-shaped parts are formed in the middles of the elastic arms and matched with the peripheral face of the scaffold supporting column. The tensioning element is fixed on the end part of the cross rod and is relatively positioned on the inner side of the bolt, and one end, close to the bolt, of the tensioning element can rotate, so that a bump structure on the tensioning element is selectively matched with a channel structure formed on a corner boss on the faceplate, and tension towards one side of a scaffold strut is applied to the end part of the cross rod; and the outer side surface of the elastic arm and the outer end surface of the sliding plate are simultaneously pressed on the peripheral surface of the scaffold strut. According to the lap joint structure, the combination effect of the lap joint structure between the scaffold cross rod and the scaffold supporting column can be improved, the stability of the scaffold formed through lap joint is improved, and the connection state of the scaffold can be monitored.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering construction tools, specifically to an improvement of the cross bar of a scaffold, and is a construction tool with a safety monitoring function. Background Art

[0002] The scaffold is used as a supporting structure for construction engineering and can provide a working platform for workers to operate. The scaffold includes a scaffold cross bar and a scaffold support column, and usually a support frame is built by releasably connecting the scaffold cross bar and the scaffold support column to each other. The connection between the scaffold support column and the scaffold cross bar is called a scaffold node. At the existing scaffold node, a flower plate is provided on the scaffold support column, and the end of the scaffold cross bar is joined to the flower plate through its respective pin. The connection between the scaffold cross bar and the flower plate mainly depends on the pin on the scaffold cross bar and the shaped hole on the flower plate. After the scaffold cross bar is attached to the scaffold support column, there is a gap at the connection position between the cross bar and the support column of the scaffold, which makes the connection established between the scaffold cross bar and the scaffold support column prone to shaking, and easily leads to relatively poor stability of the scaffold formed by the lap joint. Summary of the Utility Model

[0003] A construction tool with a safety monitoring function provided by the utility model can not only improve the bonding effect of the lap joint structure between the scaffold cross bar and the scaffold support column, enhance the stability of the scaffold formed by the lap joint, but also monitor the connection state of the scaffold.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a construction tool with a safety monitoring function, including a scaffold cross bar, a flower plate, a scaffold support column, a pin provided on the end of the cross bar of the scaffold and extending downward, a tensioning element and a detection part.

[0005] The flower plate is sleeved on the scaffold support column, and the pin at the end of the cross bar is inserted into the shaped hole at the corner position of the flower plate, thereby connecting the scaffold cross bar and the scaffold support column. The pin and the end of the cross bar can be an integrally formed structure, or a welded and fixed connection structure, but it does not exclude the situation where the pin and the end of the cross bar are fixedly connected together by other means.

[0006] On the upper end surface of the end of the cross bar, a straight groove is formed on the free end side, and a linear convex rail extending along the length direction of the scaffold cross bar is formed on the straight groove. One end of the sliding plate is matched with the linear convex rail, so that the sliding plate can slide relative to the end of the cross bar along the length direction of the scaffold cross bar. The other end of the sliding plate extends outward relative to the end of the cross bar.

[0007] The closed end of the U-shaped body is fixedly connected to the bottom surface of the straight groove. The two arms form a pair of arched plates with concave surfaces facing each other, and the free ends of the arched plates are connected to one end of the sliding plate. When the sliding plate moves relative to the end of the cross bar, it can cause the arched plates to elastically deform.

[0008] The sensor body is fixed on the U-shaped body or on the bottom surface of the straight groove, and the physical quantity change part connected to the sensor body is fixed on the arched plate, so that the physical quantity change part can follow the elastic deformation of the arched plate to undergo physical changes, thereby causing the sensor body to emit a sensing signal.

[0009] A pair of elastic arms are formed on the outer side surface of the bolt, and the two elastic arms are arranged front and back relative to each other. An arc-shaped part that bends inward and can elastically deform is formed in the middle of the elastic arm. The free end surface of the elastic arm can contact the outer peripheral surface of the scaffolding post, forming a form in which the two elastic arms hold the scaffolding post between them.

[0010] The tensioning element is fixed on the end of the cross bar and is located inside the bolt. The middle part of the tensioning element is pivotally connected to the end of the cross bar, so that one end of the tensioning element leaning towards the bolt can rotate around an axis extending in the vertical direction. A convex block structure protruding upward is formed at one end of the tensioning element leaning towards the bolt.

[0011] On the face plate, holes / sockets that can correspond to and match the bolt are respectively formed inside the four corners of the face plate. A communication notch is formed between the inside of the hole and the central hole on the face plate. The scaffolding post is inserted into the central hole of the face plate. On the lower end surface of the face plate and at the four corners respectively, corner bosses protruding downward are formed, and a channel structure matching the convex block structure at the end of the tensioning element is formed on the lower end surface of the corner boss. The middle part of the channel structure gradually bulges inward relative to the port side.

[0012] During the rotation of the tensioning element, the convex block structure can slide from the port of the channel structure to the middle of the channel structure, so that the tensioning element exerts a force on the end of the cross bar towards the side of the scaffolding post, to cause the outer side surface of the elastic arm to tightly press against the side wall of the scaffolding post. At this time, the arc-shaped parts in the middle of the two elastic arms will simultaneously elastically deform, causing the elastic part to tightly hold the scaffolding post, and at the same time, it can also cause the free end of the sliding plate arranged at the end of the cross bar to press against the scaffolding post and be able to move.

[0013] When the sliding plate presses on the outer peripheral surface of the scaffolding post, it will move relative to the end of the cross bar towards the inner end side of the straight groove, and force the arched plate to elastically deform, causing the physical quantity change part to generate a physical quantity change, and causing the sensor body to generate a sensing signal.

[0014] The communication module on the sensor body feeds back the generated sensing signals to the remote monitoring end, and can realize the remote monitoring of the connection state of the scaffolding, thereby endowing the lapping position of the scaffolding with a safety monitoring function.

[0015] Optionally, the physical quantity change part is a strain gauge part. Correspondingly, the sensor body is a strain type sensor body. The strain gauge part is fixed at the center position of the concave surface of the arched plate.

[0016] When the free end face of the sliding plate presses on the outer peripheral surface of the scaffolding post, driving the sliding plate to move relative to the end of the cross bar, the sliding plate can push the arched plate of the U-shaped body to elastically deform, and then drive the strain gauge part to elastically deform, resulting in a change in physical quantity, and causing the strain type sensor body to generate a sensing signal. After the strain type sensor body feeds back the sensing signal generated by itself to the remote monitoring end through its communication module, the remote monitoring end can analyze and process the sensing signal to judge the pressing state of the cross bar end on the scaffolding post, so as to realize the stable monitoring of the lapping state of the scaffolding. Once it is found that the result obtained after processing the sensing signal deviates from the warning range, timely alarm / warning can be realized, and potential safety hazards can be eliminated in advance.

[0017] Optionally, a pair of protruding arms are formed on the upper part of the outer end face of the cross bar end, and the two protruding arms are oppositely arranged at intervals in the front-back direction, and the outer end faces of the two protruding arms can contact the side wall of the scaffolding post.

[0018] Optionally, an elastic anti-slip pad is fixedly embedded on the outer end face of the protruding arm.

[0019] Optionally, the tensioning element includes a first hinged arm and a second hinged arm, and the middle part of the first hinged arm is pivotally matched with the middle part of the second hinged arm to form an "X" shaped hinged structure or a cross-shaped hinged structure.

[0020] The convex block structures are respectively formed at one end of the first hinged arm close to the plug pin and one end of the second hinged arm close to the plug pin. When the first hinged arm and the second hinged arm rotate around the pivot axis, the convex block structures at their ends can respectively slide from the two ports of the channel structure to the middle of the channel structure at the same time. During this period, the first hinged arm and the second hinged arm can simultaneously apply a force towards the side of the scaffolding post to the cross bar end, so as to make the outer side surface of the elastic arm tightly press on the side wall of the scaffolding post.

[0021] Optionally, the convex block structures formed at the end of the first hinged arm and the convex block structures formed at the end of the second hinged arm are both cylindrical blocks, and the side wall of the cylindrical block is correspondingly matched with the channel vertical wall of the channel structure.

[0022] Optionally, a drum is sleeved outside the cylindrical block. The side wall of the drum is tangentially matched with the channel structure.

[0023] Optionally, the channel structure includes an outer platform, and the inner side surface of the outer platform is an arc-shaped curved surface.

[0024] At least a pair of curved surface protrusions are formed in the middle of the arc-shaped curved surface, and a concave portion is formed between the pair of curved surface protrusions.

[0025] The convex block structure provided at the end of the tensioning element is tangentially matched with the arc-shaped curved surface, and the convex block structure can slide along the arc-shaped curved surface towards the curved surface protrusion and move into the concave portion.

[0026] The inner bottom surface of the concave portion is closer to the inside than the extension surface of the arc-shaped curved surface towards the middle direction.

[0027] When the convex block structure is designed to be provided at the ends of the first hinge arm and the second hinge arm, correspondingly, two pairs of curved surface protrusions are provided in the middle of the arc-shaped curved surface. When the convex block structures on the two hinge arms are respectively tangentially in contact with the arc-shaped curved surface from both ends of the arc-shaped curved surface and slide towards the middle of the arc-shaped curved surface at the same time, the two convex block structures can be respectively matched with a pair of curved surface protrusions on the same side and finally slide into the concave portions on the same side.

[0028] Optionally, the width of the port of the concave portion formed between a pair of two curved surface protrusions is smaller than the outer diameter of the cylindrical block.

[0029] Optionally, the channel structure further includes an inner platform, and the side wall surface of the inner platform facing the outer platform is an arc surface that can be tangentially matched with the convex block structure.

[0030] The beneficial effects of the present utility model are as follows: The present utility model can not only improve the bonding effect of the lap joint structure between the scaffold cross bar and the scaffold support column, enhance the stability of the scaffold formed by the lap joint, but also monitor the connection state of the scaffold. Description of the Drawings

[0031] Figure 1 It is a schematic structural diagram of the implementation state of the present utility model.

[0032] Figure 2 It is a partial structural schematic diagram of the improved part on the scaffold cross bar related to the present utility model.

[0033] Figure 3 It is a top view structural schematic diagram of the flower plate matched with the scaffold cross bar in the solution of the present utility model.

[0034] Figure 4This is a schematic upward view of the matching structure between the crossbar of the scaffolding and the flower plate in the solution of the present utility model.

[0035] Figure 5 It is Figure 4 a partial enlarged structural schematic diagram.

[0036] Figure 6 It is a schematic diagram of the matching structure between the detection part and the end of the crossbar.

[0037] In the figure: 100 is the crossbar of the scaffolding; 200 is the flower plate, 201 is the central hole, 202 is the socket; 300 is the scaffolding support; 10 is the end of the crossbar, 11 is the straight groove, 12 is the linear convex rail, 13 is the strip-shaped through hole; 20 is the bolt, 21 is the elastic arm, 211 is the inclined surface, 212 is the vertical surface; 30 is the tension element, 31 is the first articulated arm, 32 is the second articulated arm, 33 is the cylindrical block; 40 is the protruding arm, 41 is the elastic cladding; 50 is the corner boss, 51 is the outer side platform, 511 is the first curved surface protrusion, 512 is the first concave part, 513 is the second curved surface protrusion, 514 is the second concave part, 52 is the inner side platform, 53 is the channel; 60 is the detection part, 61 is the sensor body, 611 is the strain gauge part, 62 is the U-shaped body, 621 is the arched plate, 63 is the sliding plate, 631 is the track plate, 632 is the elastic pad, 64 is the assembly block, 641 is the channel. Detailed implementation mode

[0038] The structures, ratios, sizes, etc. shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present utility model. Therefore, they do not have technical substance significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. At the same time, the terms such as "upper", "lower", "front", "rear", "middle" and the like cited in this specification are only for the convenience of clear narration, and are not used to limit the implementation scope of the present utility model. The change or adjustment of their relative relationships, without substantial change of the technical content, should also be regarded as the scope that the present utility model can implement.

[0039] As Figures 1 to 6 shown, a building construction tool with a safety monitoring function includes a crossbar 100 of the scaffolding, a flower plate 200, a scaffolding support 300, a bolt 20 arranged on the end 10 of the crossbar 100 of the scaffolding and extending downward, a tension element 30 and a detection part 60.

[0040] The bolt 20 and the end 10 of the crossbar may be an integrally formed structure, or a welded and fixed connection structure, but it does not exclude the situation where the bolt 20 and the end 10 of the crossbar are fixedly connected together by other means.

[0041] The turntable 200 is sleeved on the scaffolding support column 300, and the pin 20 at the end of the cross bar 10 is inserted into the shaped holes at the corner positions of the turntable 200, thereby connecting the scaffolding cross bar 100 and the scaffolding support column 300.

[0042] As Figures 1 to 2 , Figure 6 shown, the detection unit 60 includes a sensor body 61, a U-shaped body 62, a sliding plate 63 and a fitting block 64. On the upper end surface of the end 10 of the cross bar, a straight groove 11 is formed on the free end side (the left end side shown in the figure), and a pair of linear convex rails 12 and a pair of strip-shaped through holes 13 extending along the length direction of the scaffolding cross bar 100 (the left-right direction shown in the figure) are formed in the straight groove 11, such that the linear convex rails 12 are relatively close to the port side of the straight groove 11, and the strip-shaped through holes 13 are relatively close to the inner end side of the straight groove 11. The two linear convex rails 12 and the two strip-shaped through grooves 13 are arranged front and back relative to each other.

[0043] One end of the sliding plate 63 (the right end shown in the figure) is formed with a track plate 631 that matches the linear convex rail 12, such that the sliding plate 63 can slide relative to the end 10 of the cross bar along the length direction of the scaffolding cross bar 100 (the left-right direction shown in the figure). The other end of the sliding plate 63 (the left end shown in the figure) protrudes outward relative to the end 10 of the cross bar. Two curved convex platforms are formed on the free end surface of the end 10 of the cross bar. After the scaffolding is formed by overlapping, the curved surfaces of the two curved convex platforms are in contact with the outer peripheral surface of the scaffolding support column 300. The free end surface of the sliding plate 63 is formed as an inner concave curved surface, and the bottom of the inner concave curved surface is substantially corresponding to the top of the curved convex platform formed on the end 10 of the cross bar near the same vertical plane, so that when the end 10 of the cross bar presses against the outer peripheral surface of the scaffolding support column 300, the bottom of the inner concave curved surface of the sliding plate 63 can simultaneously press against the outer peripheral surface of the scaffolding support column 300. To promote a significant moving stroke when the free end surface of the sliding plate 63 presses against the outer peripheral surface of the scaffolding support column 300 and increase the contact friction resistance with the outer peripheral surface of the scaffolding support column 300, an elastic coating 41 is provided on the curved convex platform on the end 10 of the cross bar, and an elastic pad 632 is provided on the free end surface of the sliding plate 63.

[0044] The closed end of the U-shaped body 62 (the right end shown in the figure) is fixedly connected to the bottom surface of the straight groove 11. The two arms are formed as a pair of arched plates 621 with concave surfaces facing each other (also called elastic arched plates), and the free ends of the arched plates 621 are fixedly connected to one end of the sliding plate 63 (the right end shown in the figure). When the sliding plate 63 moves relative to the end 10 of the cross bar in the left-right direction, it can cause the arched plate 621 to undergo elastic deformation.

[0045] The sensor body 61 is fixed on the U-shaped body 62, and the physical quantity change part (the illustrated strain gauge part 611) connected to the sensor body 61 is fixed on the arched plate 621, so that the physical quantity change part (the strain gauge part 611) can follow the elastic deformation of the arched plate 621 to undergo physical changes (strain changes), thereby causing the sensor body 61 to emit a sensing signal. The communication module of the sensor body 61 is connected to the remote monitoring end, so as to realize the remote monitoring of the lap joint connection state of the scaffolding.

[0046] To facilitate adjusting the (left-right direction) position of the U-shaped body 62 fixedly installed on the straight groove 11, so that when the free end face of the sliding plate 63 is not under external force compression, it extends outward (to the left) relative to the end of the cross bar 10 by a sufficient length, and can (after the scaffolding is lapped) cause a relatively significant deformation of the arched plate 621. Fix the right end of the U-shaped body 62 (the end relative to the inner end side of the straight groove 11) on the assembly block 64. At the same time, a pair of channels 641 extending in the left-right direction are formed at one end of the assembly block 64, and the two channels 641 can be correspondingly matched with the strip-shaped through holes 13 one by one. The fixing bolts can pass through the channels 641 and the strip-shaped through holes 13, and after the nuts are matched at the ends, the assembly block 64 is fixed on the end of the cross bar 10, so that the U-shaped body 62 is fixed relative to the straight groove 11 or rather the end of the cross bar 10.

[0047] On the outer side surface of the plug pin 20 (see Figure 1 the left side surface of the view shown) are provided with a pair of elastic arms 21, and the two elastic arms 21 are oppositely arranged at intervals in the front-rear direction ( Figure 1 the direction perpendicular to the paper surface in the view), so that the outer side surfaces of the two elastic arms 21 ( Figure 1 the left side surface in the view) can be in contact with the side wall of the scaffolding support 300, and it is shown that the two elastic arms 21 can hold the scaffolding support 300 between the two arms. An arc-shaped part bent inward ( Figure 1 the front side or the rear side in the view) is formed in the middle of the elastic arm 21, so that the elastic arm 21 has the ability to generate elastic deformation, that is, the bending radian of the arc-shaped part can change within a certain range, but the change amplitude is not too large.

[0048] The tensioning element 30 is fixed on the end of the cross bar 10 and is relatively located inside the plug pin 20 ( Figure 1 the right side shown). The middle part of the tensioning element 30 is pivotally connected to the end of the cross bar 10, so that the end of the tensioning element 30 close to the plug pin 20 (i.e., the left end) can rotate around the vertical axis. A convex block structure protruding upward is formed at the end of the tensioning element 30 close to the plug pin 20 (such as Figure 4 、 Figure 5The columnar block 33) shown.

[0049] Similar to the prior art, on the turntable 200 fixed to the scaffolding support 300, socket holes 202 / keyways corresponding to and mating with the pins 20 are respectively formed on the inner sides of the four corners of the turntable 200. A communication notch is formed between the inner side of the socket hole 202 and the central hole 201 on the turntable 200. The scaffolding support 300 is inserted through the central hole 201 of the turntable 200.

[0050] In the solution of the present utility model, on the lower end surface of the turntable 200, corner bosses 50 protruding downward are respectively formed at its four corners, and a channel structure capable of mating with the convex block structure at the end of the tension element 30 is formed on the lower end surface of the corner boss 50. The middle part of the channel structure bulges inward (the side close to the axis of the central hole 201 of the turntable 200) relative to the port side. Along with the rotation of the tension element 30, the convex block structure can selectively slide from the port side of the channel structure to the middle part of the channel structure, and from the middle part of the channel structure to the port side of the channel structure until it slides out of the channel structure.

[0051] During the process of the convex block structure sliding from the port side of the channel structure to the middle part of the channel structure, the tension element 30 can apply a pulling force ( Figure 1 In the view shown, the end of the crossbar 10 will be subjected to a leftward force) on the end of the crossbar 10 towards the side of the scaffolding support 300. The magnitude of this pulling force changes gradually and finally stabilizes within a certain fixed range. Along with the process of the convex block structure gradually sliding into the middle part of the channel structure, the contact pressure of the outer side surface of the elastic arm 21 acting on the side wall of the scaffolding support 300 gradually increases and finally remains within a certain fixed range. During this period, the arc part in the middle of the elastic arm 21 will undergo elastic deformation and can tightly embrace the scaffolding support 300, which can promote the combination of the end of the crossbar 10 with the turntable 200 and the scaffolding support 300 to be closer and more stable, and contribute to improving the stability performance of the scaffolding. At the same time, the tension element 30 can apply a pulling force on the end of the crossbar 10 towards the side of the scaffolding support 300, which can cause the outer side surface of the elastic arm and the outer end surface of the sliding plate 63 to simultaneously press on the outer peripheral surface of the scaffolding support 300, causing the sliding plate 63 to move inward / towards the right relative to the end of the crossbar 10, and finally triggering the sensor body 61 to generate a sensing signal.

[0052] To facilitate the smooth insertion of the bolt 20 into the socket 202 on the faceplate 200, the upper part of the outer side surface of the elastic arm 21 is formed as an inclined surface 211 that slopes downward, and the lower part is a vertical surface 212. The vertical surface 212 portion of the bolt 20 can be relatively positioned below the faceplate 200 and contact the side wall of the scaffolding support column 300. After reducing the contact surface area between the elastic arm 21 and the scaffolding support column 300 and matching the structure of the protruding arm 40, a four-point support structure can be formed up and down, which can enhance the stability of the four-point support structure formed between the end 10 of the crossbar and the scaffolding support column 300.

[0053] To further enhance the stability of the combined structure formed between the end 100 of the crossbar and the scaffolding support column 300 and the faceplate 200, a pair of protruding arms 40 can be further formed on the upper part of the outer end surface (i.e., Figure 1 the left end surface below) of the end 10 of the crossbar, and the two protruding arms 40 are relatively arranged at intervals in the front-rear direction, and the outer end surfaces of the two protruding arms 40 can contact the side wall of the scaffolding support column 300. In this way, when a force is applied to the end 10 of the crossbar through the tension element 30 to press the left end of the end 10 of the crossbar against the side wall of the scaffolding support column 300, the two protruding arms 40 will also act on the scaffolding support column 300 with a pressing force accordingly, so that four supporting feet are established between the end 10 of the crossbar and the side wall of the scaffolding support column 300, the joint surface between the end 10 of the crossbar and the side wall of the scaffolding support column 300 is balanced up and down, and the clamping structure formed between the two is made more stable.

[0054] To enhance the bonding effect between the protruding arm 40 and the wall surface of the scaffolding support column 300, an elastic anti-slip pad can be fixedly embedded on the outer end surface of the protruding arm 40.

[0055] Specifically, the tension element 30 includes a first articulated arm 31 and a second articulated arm 32, and the middle part of the first articulated arm 31 is pivotally matched with the middle part of the second articulated arm 32, so that the whole tension element 30 is formed as an "X"-shaped articulated structure. Cylindrical blocks 33 are respectively formed at one end (left end) of the first articulated arm 31 close to the bolt 20 and one end (left end) of the second articulated arm 32 close to the bolt 20, which are the convex block structures.

[0056] When the first articulated arm 31 and the second articulated arm 32 rotate around the pivot axis, the cylindrical blocks 33 at their ends can respectively slide from the (front and rear) two ports of the channel structure to the middle of the channel structure at the same time. During this period, the first articulated arm 31 and the second articulated arm 32 can simultaneously apply a force to the end 10 of the crossbar toward the side of the scaffolding support column 300 to urge the outer side surface of the elastic arm 21 to tightly press against the side wall of the scaffolding support column 300.

[0057] The side wall of the cylindrical block 33 corresponds to and tangently matches the vertical wall of the channel structure. When the cylindrical block 33 contacts the protruding wall surface (end portion) formed on the vertical wall of the channel structure and continues to slide, the side wall of the cylindrical block 33 will produce an extrusion effect with the protruding wall surface, and at the same time, the side wall of the cylindrical block 33 can be forced to press on the protruding wall surface under the action of external coercive force. In order to further reduce the obstruction force when the cylindrical block 33 is combined with the protruding wall surface formed on the channel structure and improve the operability and labor saving of the operation, a roller can be installed outside the cylindrical block 33. Make the side wall of the roller tangently match the vertical wall of the channel structure.

[0058] like Figures 3 to 5 As shown, the channel structure includes an outer platform 51 and the inner side surface ( Figure 5 The left side surface shown below is a curved surface.

[0059] Two pairs of curved surface protrusions, namely a pair of first curved surface protrusions 511 and a pair of second curved surface protrusions 513, are formed in the middle of the arc-shaped curved surface, and recesses, namely a first recess 512 and a second recess 514, are respectively formed between the two pairs of curved surface protrusions.

[0060] The convex block structure (cylindrical block 33) provided at the end of the first articulated arm 31 and the second articulated arm 32 is tangent to the arcuate surface, and the cylindrical block 33 can slide along the arcuate surface onto the curved wall of the first curved protrusion 511 and the curved wall of the second curved protrusion 513, and finally the two cylindrical blocks 33 can be moved into the first recess 512 and the second recess 514 respectively.

[0061] The inner bottom surface of the first concave portion 512 and the inner bottom surface of the second concave portion 51 can be arranged to be closer to the inside than the extending surface of the arc-shaped surface toward the middle. Figure 5 The tensioning element 30 is shown relatively to the left below so that it can act on the crossbar end 10 to press it against the scaffolding support 300.

[0062] When the cylindrical blocks 33 on the two articulated arms contact the arcuate surface tangentially from the (front and rear) ends of the arcuate surface and slide toward the middle of the arcuate surface at the same time, the two cylindrical blocks 33 can respectively match the first curved surface protrusion 511 and the second curved surface protrusion 513 on the same side, and finally slide into the first recess 512 and the second recess 514.

[0063] The port width of the recess formed between the two paired surface protrusions is smaller than the outer diameter of the cylindrical block 33, so that the cylindrical block 33 can smoothly slide into and out of the recess. In particular, after a sleeve structure is provided on the cylindrical block 33, by means of the rotation of the sleeve relative to the cylindrical block 33, the cylindrical block 33 can be made to slide into and out of the recesses 512 and 514 more smoothly. The channel structure may also include an inner platform 52, and the side wall surface of the inner platform 52 facing the outer platform 51 is an arc surface that can be tangentially matched with the cylindrical block 33. An arc-shaped channel 53 is formed between the opposite surfaces of the outer platform 51 and the inner platform 52.

[0064] The above embodiments are only illustrative of the principles and effects of the present invention and are not intended to limit the present invention. There are many aspects of the present invention that can be improved without departing from the general idea. Persons familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those of ordinary skill in the art in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A construction tool for building construction with a safety monitoring function, comprising a scaffolding crossbar, a flower plate, a scaffolding support column, and a plug that is provided at the end of the crossbar of the scaffolding and extends downward; the flower plate is sleeved on the scaffolding support column, and the plug at the end of the crossbar is inserted into the shaped hole at the corner position of the flower plate, thereby connecting the scaffolding crossbar and the scaffolding support column; it is characterized in that: It further includes a tensioning element and a detection part; the detection part includes a sensor body, a U-shaped body and a sliding plate; On the upper end surface of the end of the cross bar, a straight groove is formed on the free end side and a linear convex rail is formed on the straight groove; one end of the sliding plate is matched with the linear convex rail, so that the sliding plate can slide relative to the end of the cross bar along the length direction of the scaffold cross bar; the other end of the sliding plate extends outward relative to the end of the cross bar; the closed end of the U-shaped body is fixedly connected to the bottom surface of the straight groove, and its two arms are formed into a pair of arched plates, and the free ends of the arched plates are connected to the sliding plate; when the sliding plate moves relative to the end of the cross bar, it can cause the arched plates to undergo elastic deformation; The sensor body is fixed on the U-shaped body or on the bottom surface of the straight groove, and the physical quantity change part connected to the sensor body is fixed on the arched plate, so that the physical quantity change part can undergo physical changes following the elastic deformation of the arched plate to trigger the sensor body to emit a sensing signal; the communication module of the sensor body is connected to the remote monitoring end; A pair of elastic arms are formed on the outer side surface of the bolt and the two elastic arms are arranged front and back relatively; an arc-shaped part that bends inward and can undergo elastic deformation is formed in the middle of the elastic arm; the free end surface of the elastic arm can contact the outer peripheral surface of the scaffold support column; The middle part of the tensioning element is pivotally matched with the end of the cross bar and is relatively located inside the bolt, and the end of the tensioning element close to the bolt can make a rotational movement; a convex block structure is formed on the upper end surface of the end of the tensioning element close to the bolt; On the lower end surface of the flower disc and at the four corners respectively, corner bosses are formed, and a channel structure that can be matched with the convex block structure is formed on the lower end surface of the corner bosses; the middle part of the channel structure gradually bulges inward relative to the port side; The convex block structure can slide from the port side of the channel structure to the middle part of the channel structure, so that the tensioning element can apply a pulling force towards the side of the scaffold support column at the end of the cross bar, to cause the outer side surface of the elastic arm and the outer end surface of the sliding plate to press on the outer peripheral surface of the scaffold support column at the same time, causing the sliding plate to move relative to the end of the cross bar.

2. The construction tooling with a safety monitoring function according to claim 1, characterized in that: A pair of protruding arms are formed on the upper part of the outer end surface of the end of the cross bar, and the two protruding arms are arranged at intervals in the front and back direction, and the outer end surfaces of the two protruding arms can contact the side wall of the scaffold support column.

3. The construction tooling with a safety monitoring function according to claim 2, characterized in that: Elastic anti-slip pads are fixedly embedded on the outer end surfaces of the protruding arms.

4. The construction tooling with a safety monitoring function according to any one of claims 1 to 3, characterized in that: The tensioning element includes a first articulated arm and a second articulated arm, and the middle part of the first articulated arm is pivotally matched with the middle part of the second articulated arm; Convex block structures are respectively formed at the ends of the first articulated arm close to the bolt and the second articulated arm close to the bolt; when the first articulated arm and the second articulated arm rotate around the pivot, the convex block structures at their ends can respectively slide from the two ports of the channel structure to the middle part of the channel structure at the same time.

5. The construction tooling with a safety monitoring function according to claim 4, characterized in that: The convex block structure formed at the end of the first articulated arm and the convex block structure formed at the end of the second articulated arm are both cylindrical blocks, and the side wall of the cylindrical block is tangentially matched with the channel structure.

6. The construction tooling with a safety monitoring function according to claim 5, characterized in that: A roller is sleeved on the cylindrical block; the side wall of the roller is tangentially matched with the channel wall of the channel structure.

7. The construction tooling with a safety monitoring function according to claim 5, characterized in that: The channel structure includes an outer platform, and the inner side surface of the outer platform is an arc-shaped curved surface; two pairs of curved surface protrusions are formed in the middle of the arc-shaped curved surface, and a concave portion is formed between each pair of curved surface protrusions; the two cylindrical blocks provided at the ends of the first hinge arm and the second hinge arm can be tangentially matched with the arc-shaped curved surface, and the two cylindrical blocks can slide from both ends of the arc-shaped curved surface along the arc-shaped curved surface towards the curved surface protrusions and respectively move into the two concave portions; the inner bottom surface of the concave portion is closer to the inside than the extension surface of the arc-shaped curved surface towards the middle direction.

8. The construction tooling with a safety monitoring function according to claim 7, characterized in that: The port width of the concave portion formed between the two paired curved surface protrusions is smaller than the outer diameter of the cylindrical block.

9. The construction tooling with a safety monitoring function according to any one of claims 1 to 3, characterized in that: The channel structure includes an outer platform, and the inner side surface of the outer platform is an arc-shaped curved surface; at least one pair of curved surface protrusions is formed in the middle of the arc-shaped curved surface, and a concave portion is formed between the pair of curved surface protrusions; the convex block structure provided at the end of the tension element is tangentially matched with the arc-shaped curved surface, and the convex block structure can slide along the arc-shaped curved surface towards the curved surface protrusion and move into the concave portion; the inner bottom surface of the concave portion is closer to the inside than the extension surface of the arc-shaped curved surface towards the middle direction.

10. The construction tooling with a safety monitoring function according to claim 9, characterized in that: The channel structure further includes an inner platform, and the side wall surface of the inner platform facing the outer platform is an arc surface that can be tangentially matched with the convex block structure.

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