Node connecting structure for steel truss

Abstract

The utility model discloses a steel truss node connecting structure which comprises chord members, mounting rods, connecting plates and connecting sleeve rods, mounting grooves are formed in the two ends of each mounting rod in the length direction of the mounting rod, the chord members are inserted into the mounting grooves, the connecting plates are arranged on the mounting rods in the length direction of the mounting rods, and the connecting plates are semicircular. A sliding arc groove is formed in the connecting plate, the circle center of the sliding arc groove coincides with the circle center of the connecting plate, one end of the connecting sleeve rod is open, a connecting block is arranged at the closed end of the connecting sleeve rod, a clamping groove used for containing the connecting plate is formed in the connecting block, and the connecting block is clamped to the edge of the connecting plate through the clamping groove. The connecting block is connected with the connecting plate through a connecting piece, the connecting piece comprises a connecting bolt and a connecting nut, and the connecting bolt penetrates through the connecting plate through the sliding arc groove and is connected with the connecting nut. The connecting structure has the effect of expanding the application range.

Description

Technical Field

[0001] The present application relates to the technical field of bridge construction, and in particular to a steel truss node connection structure. Background Art

[0002] The truss in a truss structure refers to the truss beam, a type of lattice beam structure. Truss structures are commonly used in large-span public buildings such as factories, exhibition halls, stadiums, and bridges. A truss consists of parallel upper and lower chords, with several web members positioned between them. The web members can be either diagonal or straight. The connection between the web members and the chords is called the truss node.

[0003] Currently, chords and webs are typically connected using either integral or loose joints. Integral joints are factory-fabricated and then bolted or welded to the chord and web. Loose joints use two gusset plates to connect the chord and web, also bolted or welded. However, both integral and loose joints result in excessive welds in the overall structure, causing damage to the components and reducing truss construction efficiency. Utility Model Content

[0004] In order to expand the application scope of the connection structure, the present application provides a connection structure for a steel truss node.

[0005] The present application provides a steel truss node connection structure using the following technical solutions:

[0006] The lockhole that is formed on the upper of the two ends of the support frame is formed on the upper portion of the support frame, and the lockhole that is formed on the upper portion of the support frame is formed on the upper portion of the support frame.

[0007] By adopting the above technical solution, the chord is inserted into the mounting slot of the mounting rod, the connecting block is clamped onto the edge of the connecting plate through the clamping slot, the connecting sleeve is moved to the appropriate angle on the connecting plate, and the clamping block is secured using connecting bolts and nuts. The web is inserted into the connecting sleeve, achieving a specific angle connection between the chord and web. The interaction between the chord, mounting rod, connecting plate, and connecting sleeve allows for rapid, multi-angle installation of the chord and web, effectively expanding the application range of the connection structure.

[0008] Optionally, a sliding rail is provided on the outer wall of the mounting rod along its length direction, a sliding groove is provided on the sliding rail along its length direction, a sliding round rod is connected to the straight edge of the connecting plate, the sliding round rod is slidably provided in the sliding groove, and a positioning piece for positioning the sliding round rod is provided on the sliding rail.

[0009] By adopting the above technical solution, the arrangement of the sliding round rod and the sliding rail realizes a detachable connection between the connecting plate and the mounting rod, making it convenient to adjust the node position specifically.

[0010] Optionally, a limit assembly is provided in the mounting rod, and a group of the limit assembly is provided in each of the mounting slots, and the limit assembly includes an abutting push plate, an elastic member and a limit block, the abutting push plate is provided in the mounting slot, the elastic member is provided between the abutting push plate and the bottom wall of the mounting slot, the limit block is connected to the inner circumferential wall of the mounting slot and is provided on the side of the abutting push plate away from the inner bottom wall of the mounting slot, and a limit groove is provided at the end of the outer circumferential wall of the chord rod, the limit groove includes an axial sliding section, a circumferential sliding section and a limit section, the axial sliding section and the limit section are both arranged along the length direction of the chord rod, one end of the axial sliding section passes through the end of the chord rod, the circumferential sliding section is connected and arranged between the axial sliding section and the end of the limit section away from the end of the chord rod, and the circumferential sliding section is arranged along the circumference of the chord rod.

[0011] By adopting the above technical solution, the chord is pushed into the installation slot, the limit block slides into the axial sliding section, and the chord is rotated, and the limit block slides into the circumferential sliding section. When the chord is released, the push plate pushes the chord under the action of the elastic member, and the limit block moves into the limit section, achieving a quick connection between the chord and the mounting rod.

[0012] Optionally, a plug-in rod is vertically connected to one side of the abutting push plate close to the inner bottom wall of the installation groove, and a plug-in groove is provided on the inner bottom wall of the installation groove, and the plug-in rod is slidably inserted into the plug-in groove.

[0013] By adopting the above technical solution, the arrangement of the plug rod limits and guides the sliding of the abutting push plate, so that the abutting push plate can always be completely fitted with the end of the chord rod.

[0014] Optionally, the mounting rod is provided with a positioning C-shaped rod, the positioning C-shaped rod comprises a connecting part and plug-in parts vertically arranged at two ends of the connecting part, two plug-in holes corresponding to the mounting slots and communicating with the mounting slots are formed in the mounting rod, the plug-in parts extend into the mounting slots through the plug-in holes, and the plug-in parts are arranged between the abutting push plate and the inner bottom wall of the mounting slot, so that the abutting push plate abuts against the end of the chord rod during the connection process.

[0015] By adopting the above technical scheme, the end of the positioning C-shaped rod is clamped between the abutting push plate and the inner bottom wall of the mounting slot, so that the abutting push plate can always abut against the end of the chord rod during the connection process, and the stability of the structure is improved.

[0016] Optionally, the two sides of the connecting plate are provided with reinforcing ribs parallel to the sliding round rod, and one side of the reinforcing rib is arranged in abutment with one side of the sliding rail when the sliding round rod is inserted into the sliding slot.

[0017] By adopting the above technical scheme, the reinforcing ribs improve the connection strength between the connecting plate and the mounting rod, and help to improve the overall strength of the structure.

[0018] Optionally, the connecting plate is provided with an angle scale along the circumference.

[0019] By adopting the above technical scheme, the angle scale facilitates the operator to more accurately determine the installation angle of the web rod.

[0020] Optionally, the sliding rail is connected to one of the two opposite sides of the mounting rod.

[0021] By adopting the above technical scheme, the sliding rail is provided with two, which facilitates the operator to install the web rod on the two sides of the chord rod according to actual needs.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. By the cooperation of the chord rod, the mounting rod, the connecting plate and the connecting sleeve rod, the multi-angle quick installation of the chord rod and the web rod is realized, and the effect of expanding the application range of the connecting structure is achieved.

[0024] 2. The limiting assembly is arranged to realize the quick connection of the chord rod and the mounting rod.

[0025] 3. The arrangement of the angle scale facilitates the operator to more accurately determine the installation angle of the web rod. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1It is a structural diagram of a steel truss node connection structure used in an embodiment of the present application.

[0027] Figure 2 It is a partial cross-sectional view used to illustrate the internal structure of the mounting rod in the embodiment of the present application.

[0028] Figure 3 It is a structural diagram for illustrating the positioning C-shaped rod in the embodiment of the present application.

[0029] Figure 4 It is a structural diagram used to reflect the limiting groove in the embodiment of the present application.

[0030] Explanation of the accompanying drawings: 1. Chord; 2. Web; 3. Mounting rod; 31. Mounting groove; 32. Plug-in groove; 33. Plug-in hole; 4. Limiting assembly; 41. Plug-in rod; 42. Return spring; 43. Abutment push plate; 44. Limiting block; 45. Positioning C-rod; 451. Plug-in portion; 452. Connecting portion; 5. Sliding rail; 51. Sliding groove; 52. Positioning hole; 6. Connecting plate; 61. Sliding arc groove; 62. Angle scale line; 63. Reinforcing rib; 7. Connecting sleeve; 8. Sliding round rod; 9. Positioning cylinder; 10. Positioning bolt; 11. Connecting block; 111. Clamping groove; 12. Connecting bolt; 13. Connecting nut; 14. Limiting groove; 141. Axial sliding section; 142. Limiting section; 143. Circumferential sliding section. DETAILED DESCRIPTION

[0031] The following is combined with Figures 1-4 The present application is further described in detail. The embodiment of the present application provides a connection structure for a steel truss node, which has the effect of expanding the application range of the connection structure.

[0032] Reference Figure 1 and Figure 2 A connection structure for a steel truss node includes a chord 1, a web 2, a mounting rod 3, a limiting assembly 4, a sliding rail 5, a connecting plate 6, and a connecting sleeve rod 7. Both ends of the mounting rod 3 are provided with a mounting groove 31 along the length thereof. The inner diameter of the mounting groove 31 is equal to the diameter of the chord 1, and the end of the chord 1 is inserted into the mounting groove 31. A sliding rail 5 is fixedly connected to each of the opposite sides of the mounting rod 3 along the length thereof. The sliding rail 5 is the same length as the mounting rod 3. A sliding groove 51 is provided along the length thereof on the side of the sliding rail 5 away from the mounting rod 3. A plurality of positioning holes 52 are provided on the inner bottom wall of the sliding groove 51 along the length thereof.

[0033] Reference Figure 1 and Figure 2The connecting plate 6 is semicircular in shape. A sliding rod 8 corresponding in shape to the sliding groove 51 is fixedly connected to the straight edge of the connecting plate 6. The length of the sliding rod 8 is less than the diameter of the connecting plate 6. The sliding rod 8 is slidably inserted into the sliding groove 51. Two positioning cylinders 9 are slidably disposed in the sliding groove 51. The two positioning cylinders 9 are respectively disposed on either side of the sliding rod 8 and abut the ends of the sliding rod 8. The sliding rail 5 is provided with a positioning bolt 10, which passes through the positioning cylinders 9 and is threadedly connected to the corresponding positioning hole 52.

[0034] Reference Figure 2 and Figure 3 , a sliding arc groove 61 is provided on the connecting plate 6, and the center of the sliding arc groove 61 is arranged to coincide with the center of the connecting plate 6, and an angle scale line 62 is provided on the connecting plate 6. A plurality of connecting sleeve rods 7 are provided on the connecting plate 6, one end of the connecting sleeve rod 7 is open, and the other end is closed. The inner diameter of the connecting sleeve rod 7 is equal to the diameter of the web 2, and the end of the web 2 is inserted and connected to the open end of the connecting sleeve rod 7. A connecting block 11 is fixedly connected to the closed end of the connecting sleeve rod 7, and a clamping groove 111 with the same thickness as the connecting plate 6 is provided on the connecting block 11. The connecting block 11 is clamped to the edge of the connecting plate 6 through the clamping groove 111, and a connecting bolt 12 is passed through the connecting block 11, and the connecting bolt 12 passes through the sliding arc groove 61 and is threadedly connected to the connecting nut 13. At this time, the opposite sides of the clamping groove 111 are tightly pressed against the two sides of the connecting plate 6. Reinforcement ribs 63 are provided on both sides of the connecting plate 6 . When the sliding round rod 8 is inserted into the sliding groove 51 , one side of the reinforcement rib 63 is fitted against the sliding rail 5 .

[0035] Reference Figure 2 and Figure 3 A set of limit assemblies 4 is provided in each mounting slot 31. The limit assemblies 4 include a plug rod 41, a return spring 42, an abutting push plate 43, a limit block 44, and a positioning C-shaped rod 45. The abutting push plate 43 is slidably arranged in the mounting slot 31. The plug rod 41 is vertically fixedly connected to the side of the abutting push plate 43 close to the inner bottom wall of the mounting slot 31. The inner bottom wall of the mounting slot 31 is provided with a plug slot 32 corresponding to the position of the plug rod 41, and the plug rod 41 is slidably inserted into the plug slot 32. A plurality of return springs 42 are provided in the mounting slot 31. One end of the return spring 42 is connected to the bottom end of the mounting slot 31, and the other end is connected to the side of the abutting push plate 43 close to the inner bottom wall of the mounting slot 31. The limit block 44 is fixedly connected to the inner peripheral wall of the mounting slot 31 and is arranged on the side of the abutting push plate 43 away from the return spring 42.

[0036] Reference Figure 2 and Figure 4A limiting groove 14 is provided at the end of the chord 1. The limiting groove 14 includes an axial sliding section 141, a limiting section 142, and a circumferential sliding section 143. The axial sliding section 141 is provided along the length direction of the chord 1. One end of the axial sliding section 141 away from the end of the chord 1 is provided in communication with one end of the circumferential sliding section 143. The circumferential sliding section 143 is provided along the circumference of the chord 1. One end of the circumferential sliding section 143 away from the axial sliding section 141 is provided in communication with the limiting section 142. The limiting section 142 is provided in parallel with the axial sliding section 141. The end of the chord 1 is provided in contact with the push plate 43. The positioning C-shaped rod 45 includes two parallel plug-in sections 451 and a connecting section 452 provided between the two plug-in sections 451. The mounting rod 3 has two insertion holes 33 formed therein. These holes 33 correspond to and communicate with the two mounting slots 31. The two insertion holes 33 correspond to two insertion portions 451. The insertion portions 451 extend into the mounting slots 31 through the insertion holes 33. The ends of the insertion portions 451 extending into the mounting slots 31 are sandwiched between the inner bottom wall of the mounting slots 31 and the abutment push plate 43.

[0037] Reference Figure 2 and Figure 4 When connecting the trusses, the chord 1 is inserted into the mounting groove 31 of the mounting rod 3. The limit block 44 on the inner wall of the mounting groove 31 is inserted into the axial sliding section 141. When the limit rod moves to the connection between the axial sliding section 141 and the circumferential sliding section 143, the chord 1 is rotated and the limit block 44 moves into the circumferential sliding section 143. When the limit rod moves to the connection between the circumferential sliding section 143 and the limit section 142, the chord 1 is released. Under the action of the return spring 42, the abutment push plate 43 moves in a direction away from the inner bottom wall of the mounting groove 31 and pushes the chord 1. The limit rod moves into the limit section 142, thus achieving the connection of the chord 1. The plug-in parts 451 at both ends of the positioning C-shaped rod 45 are inserted into the plug-in hole 33 to achieve the positioning of the abutment push plate 43, so that the abutment push plate 43 can always abut against the end of the chord 1 during the positioning process, thereby improving the stability of the structure.

[0038] Reference Figure 2 Depending on the actual installation requirements, the connecting plate 6 is installed on one or both sides of the mounting rod 3. The sliding rod 8 is slid into the appropriate position in the sliding groove 51. The positioning cylinder 9 is pushed into the appropriate position in the sliding groove 51. The positioning bolt 10 is passed through the positioning cylinder 9 and threaded into the corresponding positioning hole 52. The provision of the two positioning cylinders 9 effectively defines the position of the connecting plate 6. The provision of the reinforcing ribs 63 increases the connection strength between the connecting plate 6 and the mounting rod 3, helping to further improve the stability of the structure.

[0039] Reference Figure 2 and Figure 3The connecting block 11 is clamped on the edge of the connecting plate 6 through the clamping groove 111, and the connecting sleeve rod 7 is fixed on the connecting plate 6 at a proper position by using the connecting bolt 12 and the connecting nut 13. The setting of the angle scale line 62 facilitates the operator to intuitively observe the installation angle of the connecting sleeve rod 7, and the setting of the connecting sleeve rod 7 facilitates the operator to connect a proper number of web rods 2 to the chord rod 1 at a specific angle according to actual needs. Finally, the web rod 2 is inserted into the connecting sleeve rod 7, and the quick detachable connection of the node position is realized.

[0040] The implementation principle of one of the embodiments of the steel truss node connection structure is as follows: when the truss is connected, the chord rod 1 is inserted into the installation groove 31 of the installation rod 3, and the connection of the chord rod 1 and the installation rod 3 is realized by using the limiting assembly 4. According to actual installation needs, the connecting plate 6 is installed on one side or both sides of the installation rod 3. A proper number of connecting blocks 11 are connected to the edge of the connecting plate 6 at a specific angle, and finally the web rod 2 is inserted into the connecting sleeve rod 7, and the quick detachable connection of the node position is realized.

[0041] The above are the preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A steel truss node connection structure, characterized by: The invention comprises a chord rod (1), a mounting rod (3), a connecting plate (6) and a connecting sleeve rod (7), wherein both ends of the mounting rod (3) are provided with a mounting groove (31) along the length direction thereof, the chord rod (1) is inserted into the mounting groove (31), the connecting plate (6) is provided on the mounting rod (3) along the length direction of the mounting rod (3), the connecting plate (6) is semicircular, a sliding arc groove (61) is provided on the connecting plate (6), the center of the sliding arc groove (61) coincides with the center of the connecting plate (6), and one end of the connecting sleeve rod (7) is open. The closed end of the connecting sleeve rod (7) is provided with a connecting block (11), and a clamping groove (111) for accommodating the connecting plate (6) is provided on the connecting block (11). The connecting block (11) is clamped to the edge of the connecting plate (6) through the clamping groove (111). The connecting block (11) is connected to the connecting plate (6) through a connecting piece, and the connecting piece includes a connecting bolt (12) and a connecting nut (13). The connecting bolt (12) passes through the connecting plate (6) through the sliding arc groove (61) and is connected to the connecting nut (13).

2. A steel truss node connection structure according to claim 1, characterized in that: A sliding rail (5) is provided on the outer wall of the mounting rod (3) along its length direction, a sliding groove (51) is provided on the sliding rail (5) along its length direction, a sliding round rod (8) is connected to the straight edge of the connecting plate (6), the sliding round rod (8) is slidably arranged in the sliding groove (51), and a positioning member for positioning the sliding round rod (8) is provided on the sliding rail (5).

3. The steel truss node connection structure according to claim 1, characterized in that: A limiting assembly (4) is provided in the mounting rod (3), and a group of the limiting assembly (4) is provided in each of the mounting grooves (31). The limiting assembly (4) includes an abutting push plate (43), an elastic member, and a limiting block (44). The abutting push plate (43) is provided in the mounting groove (31), and the elastic member is provided between the abutting push plate (43) and the bottom wall of the mounting groove (31). The limiting block (44) is connected to the inner peripheral wall of the mounting groove (31) and is provided on a side away from the inner bottom wall of the mounting groove (31) with respect to the abutting push plate (43). A limiting groove (14) is provided at the end portion, and the limiting groove (14) includes an axial sliding section (141), a circumferential sliding section (143) and a limiting section (142). The axial sliding section (141) and the limiting section (142) are both arranged along the length direction of the chord (1). One end of the axial sliding section (141) passes through the end portion of the chord (1), and the circumferential sliding section (143) is connected and arranged between the axial sliding section (141) and the end of the limiting section (142) away from the end portion of the chord (1). The circumferential sliding section (143) is arranged along the circumference of the chord (1).

4. The steel truss node connection structure according to claim 3, characterized in that: A plug-in rod (41) is vertically connected to one side of the abutting push plate (43) close to the inner bottom wall of the installation slot (31); a plug-in slot (32) is provided on the inner bottom wall of the installation slot (31); and the plug-in rod (41) is slidably inserted into the plug-in slot (32).

5. The steel truss node connection structure according to claim 4, characterized in that: A positioning C-shaped rod (45) is provided on the mounting rod (3), and the positioning C-shaped rod (45) includes a connecting portion (452) and a plug-in portion (451) vertically arranged at both ends of the connecting portion (452). Two plug-in holes (33) corresponding to and connected to the mounting groove (31) are provided on the mounting rod (3), and the plug-in portion (451) extends into the mounting groove (31) through the plug-in holes (33). The plug-in portion (451) is provided between the abutting push plate (43) and the inner bottom wall of the mounting groove (31), and at this time, the abutting push plate (43) is tightly abutted against the end of the chord rod (1).

6. The steel truss node connection structure according to claim 2, characterized in that: Reinforcement ribs (63) parallel to the sliding round rod (8) are provided on both sides of the connecting plate (6); when the sliding round rod (8) is inserted into the sliding groove (51), one side of the reinforcement rib (63) is arranged to fit with one side of the sliding rail (5).

7. The steel truss node connection structure according to claim 1, characterized in that: Angle scale lines (62) are provided on the connecting plate (6) along the circumferential direction.

8. The steel truss node connection structure according to claim 2, characterized in that: The sliding rail (5) is connected to two opposite sides of the mounting rod (3).

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