Connection assembly and keel unit

Abstract

The application relates to a connecting assembly and a keel unit, the connecting assembly comprising a male part and a female part, the protruding structure of the male part being matched with the stop structure of the female part, so as to be suitable for limiting the male part and the female part in a second direction relative to each other in a first state, and simultaneously limiting the male part and the female part in a first direction and a second direction relative to each other in a second state. Through the application, the on-site assembly process difficulty can be simplified, the material use cost of a formwork clamping system is reduced, the assembly process time consumption is greatly shortened, the keel connection stability is improved, and the assembly is more convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of construction, in particular to a connecting assembly and a batten unit. BACKGROUND

[0002] In the construction industry, formwork technology is the most commonly used construction technology, which is closely related to the pouring quality of concrete. Formwork technology can ensure that the structure and size of the poured workpiece can fully meet the established construction requirements and standards. In order to improve the pouring quality, it is crucial to tighten the placed formwork, and the stable connection between the batten used for tightening directly determines whether the formwork remains stable during pouring.

[0003] The area of connection between two battens is generally at the straight face, external corner and internal corner. Firstly, the existing accessory structure is complex, the number of accessories used is large, and the on-site assembly process is cumbersome. Secondly, large-size battens can be used at the straight face, but when the size of the straight face of the wall to be poured is small and the number of external corners and internal corners is large, the use of accessories for connection at the external corners and internal corners leads to an increase in the number of accessories used in the entire system, greatly increasing the material cost and making the process more complicated. Thirdly, the connection methods and accessory structures used in the existing technology for connecting battens at the straight face, external corner and internal corner are different, which greatly increases the difficulty of on-site assembly process and improves the training cost of on-site assembly construction personnel. Finally, the existing two-batten connection method has defects in connection stability due to the large number of accessories used and the complex connection structure.

[0004] Due to the above problems, the existing batten has many size specifications. Specifically, on the one hand, due to the large number of connection structure accessories between the existing battens and the complex connection structure, the connection method often uses bolts or pin fastening, which inevitably causes shaking and loosening. If a special size wall is encountered on site, the position relationship between the two battens will change during the process of connecting the two battens and then putting them on the wall due to loosening of the connection, which cannot meet the precision requirements of formwork tightening. On the other hand, the existing connection method between battens requires positioning one batten on the wall first and then installing the other batten. That is, the existing two-batten connection method cannot combine a whole batten of appropriate length according to the size of the wall to be poured before installation on the wall, which increases the time and complexity of on-site assembly.

[0005] In summary, the existing batten connection method for tightening the construction pouring formwork has a complicated assembly process, high material cost and insufficient connection stability. SUMMARY

[0006] The present application relates to the field of construction, in particular to a connecting assembly and a batten unit.

[0007] The object of the present application is achieved by the technical solution of a connecting assembly for connecting two keels, the connecting assembly comprising a male part and a female part, the male part and the female part being mutually assembled into a first state and a second state, the first state being suitable for connecting the two keels in a first direction, and the second state being suitable for connecting one of the keels in the first direction and the other of the keels in a second direction perpendicular to the first direction; the male part comprising a protruding structure in a third direction perpendicular to the first direction and the second direction, and the female part comprising a stop structure in the third direction, the protruding structure and the stop structure being adapted to mutually limit the male part and the female part in the second direction when in the first state, and to simultaneously mutually limit the male part and the female part in the first direction and the second direction when in the second state.

[0008] The connecting assembly of the present application can be used to connect two keels at straight faces and corners, without the need to distinguish different accessories and connection methods for different areas, greatly reducing the difficulty of the assembly process and improving the assembly process time; and when a wall structure to be poured has more corner structures, since the connecting structure only needs two accessories, the male part and the female part, the material use cost is reduced, and the standardization of the parts of the formwork clamping system is also achieved; finally, since the protruding structure and the stop structure are used for cooperation, the connection of the two keels at the straight face has sufficient limiting in the direction perpendicular to the wall surface, and the connection of the two keels at the corner has sufficient limiting in the direction of the two keels, ensuring the stability of the keel connection. In addition, since the connection is stable, two or more keels can be connected in combination as a whole and directly fixed on the wall, making the assembly more convenient.

[0009] Further, the connecting assembly of the present application, the protruding structure comprises a protruding strip extending in the first direction.

[0010] Further, the connecting assembly of the present application, the protruding strip comprises a pair of protruding strips parallel to each other, the opposite surfaces of the pair of protruding strips respectively forming first limiting surfaces at a first distance from each other, the female part comprising a boss extending in the third direction, the boss having second limiting surfaces at a second distance from each other on both sides in the first direction, and the boss having third limiting surfaces at a third distance from each other on both sides in the second direction, the first distance, the second distance and the third distance being equal.

[0011] Further, the connecting assembly of the present application, the protruding structure comprises a protrusion, the female element comprises a boss extending along the third direction, the boss is formed with a third limit surface on both sides along the second direction, the stop structure further comprises a groove opened on the boss, the protrusion is matched with the groove, so that the protrusion is matched with the groove in the first state and the second state, the male element and the female element are limited along the second direction in the first state, and the male element and the female element are simultaneously limited along the first direction and the second direction in the second state.

[0012] Further, the connecting assembly of the present application, the protruding structure comprises a protrusion, the female element comprises a boss extending along the third direction, the boss is formed with a third limit surface on both sides along the second direction, the stop structure further comprises a groove opened on the boss, the protrusion is matched with the groove, so that the protrusion is matched with the groove in the first state and the second state, the male element and the female element are limited along the second direction in the first state, and the male element and the female element are simultaneously limited along the first direction and the second direction in the second state.

[0013] Further, the connecting assembly of the present application, the protruding structure comprises a protrusion, the female element comprises a boss extending along the third direction, the boss is formed with a third limit surface on both sides along the second direction, the stop structure further comprises a groove opened on the boss, the protrusion is matched with the groove, so that the protrusion is matched with the groove in the first state and the second state, the male element and the female element are limited along the second direction in the first state, and the male element and the female element are simultaneously limited along the first direction and the second direction in the second state.

[0014] Further, the connecting assembly of the present application, the protruding structure comprises a protrusion, the female element comprises a boss extending along the third direction, the boss is formed with a third limit surface on both sides along the second direction, the stop structure further comprises a groove opened on the boss, the protrusion is matched with the groove, so that the protrusion is matched with the groove in the first state and the second state, the male element and the female element are limited along the second direction in the first state, and the male element and the female element are simultaneously limited along the first direction and the second direction in the second state.

[0015] Further, the connecting assembly of the present application, the male element comprises a first connecting part and a first body connected with each other, the first connecting part is adapted to be connected to the keel end, and the first body is provided with the protruding structure; and / or the female element comprises a second connecting part and a second body connected with each other, the second connecting part is adapted to be connected to the keel end, and the second body is provided with the stop structure.

[0016] Further, the connecting assembly of the present application, the first body is provided with a first through hole, the second body is provided with a second through hole, and the first through hole and the second through hole are matched with each other, so that the connecting element can pass through the first through hole and the second through hole simultaneously in the first state and the second state.

[0017] Further, the connecting assembly of the present application, the first through hole is a long hole extending along the first direction; and / or the second through hole has an internal thread.

[0018] Further, the connecting assembly of the present application, the second body is provided with a third through hole at one end away from the second connecting part along the first direction, the distance between the third through hole and the second connecting part is greater than the dimension of the keel along the second direction, so that when the second body is passed through the keel along the second direction from one side of the keel, the third through hole can be exposed from the other side of the keel, so that the pin can be inserted into the third through hole.

[0019] Another object of the present application is achieved by the following technical solution, a keel unit for building pouring formwork clamping, comprising a keel, further comprising the male part and / or the female part described above.

[0020] The present application can achieve the following effects through the above technical solutions:

[0021] Through the technical solutions of the present application, the on-site assembly process difficulty can be simplified, the material use cost of the formwork clamping system can be reduced, the assembly process time consumption can be greatly shortened, the keel connection stability can be improved, and the assembly is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above and other objects, features and advantages of the embodiments of the present application will be readily understood through reading the detailed description of the embodiments of the present application below, with reference to the attached drawings. In the drawings, several embodiments of the present application are shown by way of example and not limitation, in which:

[0023] Figure 1 A double-plate keel unit of the present application is shown in the schematic diagram;

[0024] Figure 2 A keel unit connection schematic diagram of the present application in the first state is shown;

[0025] Figure 3 A keel unit connection schematic diagram of the present application in the second state is shown;

[0026] Figure 4 A first angle schematic diagram of the male part of the present application is shown;

[0027] Figure 5 A second angle schematic diagram of the male part of the present application is shown;

[0028] Figure 6 A first angle schematic diagram of the female part of the present application is shown;

[0029] Figure 7 A second angle schematic diagram of the female part of the present application is shown;

[0030] Figure 8 An exploded view of the connection assembly in the first state of the application is shown;

[0031] Figure 9 An exploded view of the connection assembly in the second state of the application is shown;

[0032] Figure 10 An exploded view of the connection assembly in the first state of the application using the first embodiment of the connection piece is shown;

[0033] Figure 11 An exploded view of the connection assembly in the first state of the application using the second embodiment of the connection piece is shown;

[0034] Figure 12 An exploded view of the keel unit at a female corner of the application is shown;

[0035] Figure 13 A connection diagram of the keel unit at a female corner of the application is shown;

[0036] Figure 14 A diagram of the template clamping system of the first embodiment of the application is shown;

[0037] Figure 15 A diagram of the single-piece keel unit of the application is shown;

[0038] Figure 16 A diagram of the template clamping system of the second embodiment of the application is shown.

[0039] In the drawings, the same or corresponding reference numbers indicate the same or corresponding parts:

[0040] 10-male piece, 11-first support part, 12-first body, 13-convex strip, 14-bump, 141-first bump, 142-second bump, 143-third bump, 144-fourth bump, 145-fifth bump, 146-sixth bump, 15-first through hole, 16-through hole, 161-inclined surface, 17-first notch, 20-female piece, 21-second support part, 22-second body, 23-convex platform, 24-groove, 241-first groove, 242-second groove, 243-third groove, 25-second through hole, 26-third through hole, 27-first rib, 28-second rib, 29-opening, 210-through hole, 2101-inclined surface, 2111-second notch, 30-keel, 30'-keel, 31-first double-piece keel, 32-second double-piece keel, 33-third double-piece keel, 34-fourth double-piece keel, 35-fifth double-piece keel, 31'-first single-piece keel, 32'-second single-piece keel, 33'-third single-piece keel, 34'-fourth single-piece keel, 41-first bolt, 42-second bolt, 5-secondary keel, 6-bolt, 7-nut, 8-pin piece, 9-pin post. Detailed Implementation

[0041] The principles and spirit of the invention will now be described with reference to several exemplary embodiments. It should be understood that these embodiments are given merely to enable those skilled in the art to better understand and implement the invention, and are not intended to limit the scope of the invention in any way.

[0042] It should be noted that the directional terms used in this article are defined uniformly, such as "first direction X". Figure 2 As shown, "direction X" refers to a direction parallel to the horizontal ground and along the straight wall to be poured; "second direction Y" refers to a direction parallel to the horizontal ground and along another straight wall perpendicular to the first straight wall; "third direction Z" refers to a direction perpendicular to the horizontal ground. Those skilled in the art will understand that the above direction definitions are merely illustrative, and in practice, they express that the two walls along which "first direction X" and "second direction Y" are perpendicular to each other. Furthermore, "up" refers to a direction perpendicular to the horizontal ground pointing upwards, and "down" refers to a direction perpendicular to the horizontal ground pointing downwards.

[0043] The keel unit of this invention is used for clamping formwork in building casting. After the formwork is placed according to the wall structure to be cast, multiple keel units of this invention are connected to each other to clamp the formwork. Figure 1 As shown, the keel unit of the present invention includes a keel 30 and male parts 10 and female parts 20 connected to both ends of the keel 30. Keel units of different specifications can be manufactured as needed. The only difference between keel units of different specifications is the length of the keel 30; the male parts 10 and female parts 20 at both ends are the same. Therefore, by using the male part 10 of one keel unit to mate with the female part 20 of another keel unit, the connection between the two keels can be achieved.

[0044] The connection between the two keels at 30mm mainly involves the straight surfaces, inside corners, and outside corners. For example... Figure 2 As shown, in the straight line, the female component 20 of the left keel 30 and the male component 10 of the right keel 30 are assembled together. For ease of description, the assembly of the male component 10 and the female component 20 in this case is defined as the first state, so that the two keels 30 are connected relative to each other along the first direction X. Figure 3 As shown, at the inside corner (or outside corner), the male component 10 of the left keel 30 and the female component 20 of the right keel 30 are assembled together. For ease of description, this assembly of male component 10 and female component 20 is defined as a second state, where the left keel 30 is connected along the first direction X and the right keel 30 is connected along the second direction Y. Those skilled in the art will understand that the positions of male component 10 and female component 20 in the above assembly can be interchanged. Those skilled in the art can immediately see that male component 10 or female component 20 can be connected only at one end of the keel 30, leaving the other end unconnected; or male component 10 or female component 20 can be connected at both ends of the keel 30.

[0045] The assembling principle of the male part 10 and the female part 20 is explained in detail below.

[0046] As shown in Figure 4 the male part 10 comprises a first connecting part 11 and a first body 12 connected with each other. In one embodiment, the first connecting part 11 is in the shape of a plate, one side of which extends the first body 12 along the first direction X, and the other side is connected with the end of the keel 30, which can be welding or other conventional connection mode. In one embodiment, the first body 12 is in the shape of a plate, one side of which is provided with a protruding structure along the third direction Z.

[0047] In one embodiment, the protruding structure comprises a pair of parallel protrusions 13 extending along the first direction X, and the opposite sides of the pair of protrusions 13 are respectively provided with first limiting surfaces 131 spaced apart by a first distance L1. The protruding structure further comprises a protruding block 14, which in one embodiment comprises a plurality of protruding block arrays arranged along the first direction X and the second direction Y, wherein the first direction X is defined as the protruding block column, and the second direction Y is defined as the protruding block row. Specifically, the first protruding block column comprises a first protruding block 141, a second protruding block 142 and a third protruding block 143, wherein the distance between the first protruding block 141 and the second protruding block 142 is, for example, 1 / 2 of the distance between the second protruding block 142 and the third protruding block 143, and the specific role will be described in detail below; the second protruding block column only comprises a sixth protruding block 146, thereby providing a space for the first through hole 15; the third protruding block column comprises a fourth protruding block 144 and a fifth protruding block 145. On the other hand, the first protruding block row comprises the first protruding block 141 and the fourth protruding block 144, the second protruding block row comprises the second protruding block 142 and the fifth protruding block 145, and the third protruding block row comprises the third protruding block 143 and the sixth protruding block 146.

[0048] As shown in Figure 5 the female part 20 comprises a second connecting part 21 and a second body 22 connected with each other. In one embodiment, the second connecting part 21 is in the shape of a plate, one side of which extends the first body 22 along the first direction X, and the other side is connected with the end of the keel 30, which can be welding or other conventional connection mode. In one embodiment, the first body 22 is in the shape of a plate, one side of which is provided with a limiting structure along the third direction Z.

[0049] In one embodiment, a boss 23 extends along a third direction Z on one side of the second body 22. The projection of the boss 23 along the third direction Z is a regular quadrilateral. Second limiting surfaces 231, spaced a second distance L2 apart, are formed on both sides along the first direction X, and third limiting surfaces 232, spaced a third distance L3 apart, are formed on both sides along the second direction Y. In one embodiment, a groove 24 extending along the first direction X is formed on the boss 23. In one embodiment, the groove 24 includes three parallel grooves: a first groove 241, a second groove 242, and a third groove 243. The limiting surfaces and grooves constitute the stop structure of the present invention.

[0050] In this invention, a connecting assembly is formed by male component 10 and female component 20, thereby enabling the two keels 30 to be interconnected. For example... Figure 8 As shown, in the first state, the protruding structure of the male component 10 and the stop structure of the female component 20 are brought closer together along the third direction Z until the protruding structure and the stop structure cooperate with each other. In one embodiment, since the first distance L1 and the second distance L2 are equal, the first limiting surface 131 of a pair of protrusions 13 and the second limiting surface 231 of the boss 23 cooperate with each other. At the same time, the first protrusion 141, the second protrusion 142, and the third protrusion 143 are all embedded in the third groove 243, the sixth protrusion 146 is embedded in the second groove 242, and the fourth protrusion 144 and the fifth protrusion 145 are all embedded in the first groove 241, thereby ensuring that the male component 10 and the female component 20 are mutually limited along the second direction Y. At this time, the male component 10 and the female component 20 can slide relative to each other in the first direction X, thereby realizing that the two keels 30 can be extended and adjusted along the first direction X when they are connected in a straight plane.

[0051] like Figure 9 As shown, in the second state, the protruding structure of the male part 10 and the stop structure of the female part 20 are brought closer together along the third direction Z until the protruding structure and the stop structure cooperate with each other. In one embodiment, since the first distance L1 and the third distance L3 are equal, the first limiting surface 131 of a pair of protrusions 13 and the third limiting surface 232 of the boss 23 cooperate with each other, thereby ensuring that the male part 10 and the female part 20 are mutually limited along the first direction X. At the same time, the third protrusion 143 and the sixth protrusion 146 are both embedded in the first groove 241, and the second protrusion 142 and the fifth protrusion 145 are both embedded in the third groove 243, forming the first position. At this time, the first protrusion 141 and the fourth protrusion 144 are located on the side of a second limiting surface 231; or the second protrusion 142 and the fifth protrusion 145 are both embedded in the second groove 242, and the first protrusion 141 and the fourth protrusion 144 are both embedded in the third groove 243, forming the second position. At this time, the third protrusion 143 and the sixth protrusion 146 are located on the side of another second limiting surface 231. Through the mutual cooperation of the protrusions and grooves, the male part 10 and the female part 20 are mutually limited along the second direction Y.

[0052] In one embodiment, the first body 12 is provided with a first through hole 15, which can be a long slot, so that the male part 10 and the female part 20 can slide in the first direction X within a certain range in the first state; meanwhile, the second body 22 is provided with a second through hole 25; the first through hole 15 and the second through hole 25 correspond in position in the first state, and the connecting member passes through the first through hole 15 and the second through hole 25 at the same time, so that the male part 10 and the female part 20 are fixed and kept in the first state and the second state in the third direction Z.

[0053] In order to further ensure that the male part 10 and the female part 20 are more closely limited in position (with smaller shaking clearance) in the first direction X and / or the second direction Y in the first state and the second state, the convex strip 13 and the convex block 14 are provided with an outwardly extending profile from top to bottom at the bottom in the third direction Z, and meanwhile, the bottom of each limiting surface and the recess 24 is also provided with an outwardly extending profile from top to bottom, so that the above-mentioned outwardly extending profiles are further squeezed when the male part 10 and the female part 20 are pressed tightly by the connecting member, thereby making the mutual limiting of the male part 10 and the female part 20 more closely, and the connecting effect is close to the welding effect, so that shaking is avoided in the pouring process.

[0054] As shown in Figure 10 In one embodiment, a pin connecting member can be used, the pin 9 is passed through the first through hole 15 and the second through hole 25 from bottom to top, and then the wedge-shaped pin 8 is inserted into the opening of the pin 9 exposed above the male part 10, so that the male part 10 and the female part 20 are pressed tightly in the third direction Z by the inclined surface of the wedge-shaped pin 8.

[0055] As shown in Figure 11 In one embodiment, a threaded connecting member can be used, at this time, the second through hole 25 is provided with an internal thread, which can be a thread provided on the inner surface of the second through hole 25, or a nut 7 can be fixedly or movably arranged below the second through hole 25, the bolt 6 is passed through the first through hole 15 and the second through hole 25, and the male part 10 and the female part 20 are pressed tightly in the third direction Z by the threaded connection.

[0056] The connecting assembly of the present application can also be used to connect two dowe ls 30 at the male corner of the formwork. As shown in Figure 6 , 12As shown in Figure 13, the second body 22 has a third through hole 26 at the end away from the second connecting portion 21 along the first direction X. In one embodiment, the third through hole 26 is an elongated hole. The keel 30 has openings on both sides, and the size of the openings in the third direction Z is larger than the size of the second body 22 in the third direction Z, so as to ensure that the second body 22 can pass through the openings from one side of the keel 30 to the other side. The distance between the third through hole 26 and the second connecting portion 21 is larger than the size of the keel 30 along the second direction Y, so as to ensure that when the second body 22 passes through the keel 30 from one side to the other side along the second direction Y, the third through hole 26 can be exposed from the other side of the keel 30, so that the first pin 41 can be inserted into the third through hole 26 from the outside of the keel 30. At this time, the first pin 41 is used to tighten the keel 30 to its corresponding template. At the same time, a through hole is made in the keel 30 so that the second pin 42 can pass through the through hole along the third direction Z and enter the keel 30. The second pin 42 is used to block one side of the mother part 20, thereby tightening the keel 30 of the mother part 20 to its corresponding template.

[0057] In one embodiment, since the female component 20 can be used to pass through the keel 30 from the side at the external corner to support the keel 30, in order to improve the connection strength between the first connecting portion 21 and the second connecting portion 22 of the female component 20, such as... Figure 7 As shown, a support rib 27 extends from the second connecting portion 21 along the first direction X away from the second connecting portion 21, and the extended portion of the support rib 27 is connected to the second body 22. In another embodiment, in order to improve the connection strength between the first connecting portion 21 and the second connecting portion 22 of the mother component 20, as follows... Figure 6 As shown, a support rib 28 extends from the second body 22 in a third direction Z away from the second body 22, and the extended portion of the support rib 28 is connected to the second connecting portion 21. Those skilled in the art will understand that the above-described support rib structure can also be used between the first connecting portion 11 and the first body portion 12 of the component 10.

[0058] In one embodiment, such as Figure 7 As shown, in order to further reduce the weight of the mother part 20 and also reduce material costs, a hollow structure 29 is provided on the second body 22 at the boss 23.

[0059] In one embodiment, such as Figure 5 As shown, in order to further reduce the weight of the mother part 20, and especially to avoid paint residue during the impregnation process, a through hole 16 is provided in the first connecting part 11, and the first connecting part 11 transitions to the through hole 16 via a slope 161. Furthermore, in another embodiment, as... Figure 7As shown, the second connecting part 21 is provided with a through hole 210, and the second connecting part 21 is connected to the through hole 210 through a slope 2101. By providing the through holes 16 and 210, when the length direction of the keel unit connected with the male part 10 and the female part 20 is perpendicular to the ground during the process of lifting after the dip painting, the paint can flow out along the slope 161 or 2101, thereby avoiding unnecessary paint remaining on the plate-shaped plane of the first connecting part 11 or the second connecting part 21.

[0060] In one embodiment, in order to make room for the secondary keel 5 in the second state, as shown in Figure 4 and 7 As shown, the first body 12 is provided with a first notch 17 at the corner away from the first connecting part 11 along the first direction X, and the second body 22 is provided with a second notch 211 at the corner away from the second connecting part 21 along the first direction X. As shown in Figure 14 The first notch 17 and the second notch 211 are matched in size and position, so that the first notch 17 and the second notch 211 can make room for the secondary keel 5 in the second state (the inside corner), or limit the secondary keel 5 through the first notch 17 and the second notch 211 from the first direction X and the second direction Y at the same time. Those skilled in the art can understand that the secondary keel 5 can be a wooden square of a wooden formwork, or a connecting plate on both sides of an aluminum formwork.

[0061] In one embodiment, the male part 10 and the female part 20 can be integrally formed by casting. In another embodiment, the protruding structure of the male part 10 and the stop structure of the female part 20 can also be obtained by cutting. In another embodiment, the first connecting part 11 and the first body 12 can be connected by welding, and the second connecting part 21 and the second body 22 can be connected by welding.

[0062] As shown in Figure 14 The male part 10 and the female part 20 of the present application can be integrally transported to the site for direct assembly after being connected with the keel 30 into a keel unit in the factory, or the male part 10, the female part 20 and the keel 30 can be connected on site. In one embodiment, when the building pouring formwork is clamped, first, the first double-plate keel 31 and the second double-plate keel 32 are connected at the inside corner, and the third double-plate keel 33 and the fourth double-plate keel 34 are connected at the outside corner, by using the connecting assembly of the present application, taking the corner area as the reference, and then the second double-plate keel 32 and the fifth double-plate keel 35 are connected at the lock joint, and the third double-plate keel 33 and the first double-plate keel 31 are connected at the lock joint, thereby completing the connection of the entire clamping system.

[0063] In one embodiment, the keel 30 can be designed as a standard part with only several fixed sizes, and through the connecting assembly of the present application, the formwork of most conventional structures of the building pouring wall can be tightly wrapped, without the need for special size keel unit to be produced separately, greatly reducing the production cost.

[0064] In another embodiment, when the wall to be poured has a similar "W" shaped structure, or other similar structures require the use of a keel with a smaller length size, a single-piece keel 30' can be produced separately, as shown in Figure 15 The male part 10 or the female part 20 can be connected at one end of the keel 30' formed by a single profile, or the male part 10 and the female part 20 can be connected at both ends respectively, or the male part 10 or the female part 20 can be connected at both ends, of course, the production cost is optimal when only one end is connected with the male part 10 or the female part 20. As shown in Figure 16 When the building pouring formwork is tightly wrapped, first, the corner area is taken as the reference, the first double-piece keel 31 and the first single-piece keel 31' are connected at the inside corner through the connecting assembly of the present application, and the third double-piece keel 33 and the third single-piece keel 33' are connected at the inside corner, then the first single-piece keel 31' and the second double-piece keel 32 are connected at the outside corner, and the third single-piece keel 33' and the fourth double-piece keel 34 are connected at the outside corner, finally, the end locking connection is performed, thereby completing the connection of the entire tightening system.

[0065] The connecting assembly of the present application can be used to connect two keels at straight faces and corners, without the need for different accessories and connection methods for different areas, greatly reducing the assembly process difficulty and improving the assembly process time; when the wall to be poured has more corner structures, since the connecting structure only needs two accessories, the male part and the female part, the material usage cost is reduced, and the part standardization of the formwork tightening system is realized; finally, since the convex structure and the stop structure are used for cooperation, the connection of the two keels at the straight face has sufficient limiting in the direction perpendicular to the wall surface, and the connection of the two keels at the corner has sufficient limiting in the direction along the two keels, ensuring the stability of the keel connection. In addition, since the connection is stable, two or more keels can be connected as a whole and directly fixed on the wall, making the assembly more convenient.

[0066] The foregoing description is not exhaustive and is not intended to limit the present application to the precise form disclosed. Various modifications and changes can be made therefrom by those skilled in the art which fall within the scope of the teachings of the present application. These embodiments were chosen and described in order to best explain the principles of the present application and its practical application to thereby enable others skilled in the art to best utilize the present application in various embodiments and various modifications as are suited to the particular use contemplated.

Claims

1. A connecting assembly for connecting two rails, the connecting assembly comprising: a male member and a female member, the male member and the female member being adapted to be assembled with each other in a first state and a second state, the first state being adapted for connecting two rails in a first direction, the second state being adapted for connecting one rail in the first direction and another rail in a second direction perpendicular to the first direction; the male member comprising a protruding structure in a third direction perpendicular to the first direction and the second direction, the female member comprising a stop structure in the third direction, the protruding structure and the stop structure being adapted to limit the male member and the female member in the second direction with respect to each other in the first state, and to limit the male member and the female member in the first direction and the second direction with respect to each other in the second state.

2. The connecting assembly according to claim 1, wherein: the protruding structure comprises a protrusion extending in the first direction.

3. The connecting assembly according to claim 2, wherein: the protrusion comprises a pair of protrusions parallel to each other, the pair of protrusions being formed with a first limiting surface at a first distance from each other on opposite sides of the pair of protrusions, the female member comprises a protrusion extending in the third direction, the protrusion being formed with a second limiting surface at a second distance from each other on opposite sides of the protrusion in the first direction, and the protrusion being formed with a third limiting surface at a third distance from each other on opposite sides of the protrusion in the second direction, the first distance, the second distance and the third distance being equal.

4. The connecting assembly according to claim 1, wherein: the protruding structure comprises a protrusion, the female member comprises a protrusion extending in the third direction, the protrusion being formed with a third limiting surface on opposite sides of the protrusion in the second direction, the stop structure further comprising a groove formed in the protrusion, the protrusion and the groove being adapted to cooperate with each other in the first state and the second state, such that the male member and the female member are limited in the second direction with respect to each other in the first state, and the male member and the female member are limited in the first direction and the second direction with respect to each other in the second state.

5. The connecting assembly according to claim 4, wherein: the protrusion comprises at least two rows of protrusions arranged in the second direction, the groove comprises at least two grooves parallel to each other arranged in the second direction, the at least two rows of protrusions and the at least two grooves being adapted to cooperate with each other in the first state, such that the male member and the female member are limited in the second direction with respect to each other.

6. The connecting assembly according to claim 4, wherein: the protrusion comprises at least two columns of protrusions arranged in the first direction, the at least two columns of protrusions and the groove and the third limiting surface being adapted to cooperate with each other in the second state, such that at least one column of protrusions cooperates with the groove and the remaining protrusions are located outside the third limiting surface, thereby limiting the male member and the female member in the first direction and the second direction with respect to each other. ​ ​ ​ ​ ​ ​ ​ 7. The connecting assembly of claim 1, wherein: the protruding structure has a profile extending outwardly from top to bottom at the bottom in the third direction, and the stop structure has a profile extending outwardly from top to bottom at the bottom in the third direction, so that the mutual limiting is tighter when the male member and the female member are pressed against each other in the first state and the second state.

8. The connecting assembly of claim 1, wherein: the male member comprises a first connecting portion and a first body connected to each other, the first connecting portion is adapted to be connected to the keel end portion, and the first body is provided with the protruding structure; and / or the female member comprises a second connecting portion and a second body connected to each other, the second connecting portion is adapted to be connected to the keel end portion, and the second body is provided with the stop structure.

9. The connecting assembly of claim 8, wherein: the first body is provided with a first through hole, and the second body is provided with a second through hole, the first through hole and the second through hole correspond to each other, so that the connecting member can pass through the first through hole and the second through hole at the same time in the first state and the second state.

10. The connecting assembly of claim 9, wherein: the first through hole is a long hole extending in the first direction; and / or the second through hole has an internal thread.

11. The connecting assembly of claim 8, wherein: the second body is provided with a third through hole at an end away from the second connecting portion in the first direction, and the distance between the third through hole and the second connecting portion is greater than the dimension of the keel in the second direction, so that when the second body is passed through the keel from one side of the keel in the second direction, the third through hole is exposed from the other side of the keel, and thus a pin can be inserted into the third through hole.

12. A keel unit for tightening a building pouring formwork, comprising a keel, wherein: the male member and the female member of any one of claims 1-11 are further included. ​

Images