Pre-tightening connecting device for steel structure building

Abstract

The utility model relates to the technical field of steel structure connection, and discloses a pre-tightening connecting device for a steel structure building, which comprises a connecting steel structure of an I-shaped structure, mounting preformed holes for positioning are formed in the surfaces of the two ends of the connecting steel structure, and the mounting preformed holes are communicated with a hollow part entering the connecting steel structure. A second connecting clamping base and a first connecting clamping base are connected to the outer portion of the connecting steel structure in a sleeving mode, and connecting cavities are formed in the second connecting clamping base and the first connecting clamping base correspondingly. According to the novel connecting structure, pressing gaskets are installed on the upper sides and the lower sides of the interiors of the connecting cavities, and the first connecting clamping base and the second connecting clamping base cannot be loosened after being connected in a clamped mode and used for a long time; and meanwhile, connection between the first connecting clamping base and the second connecting clamping base is reinforced again through the connecting bolts, two connecting steel structures which are not welded are located after being attached through a multi-channel reinforcing mode, dislocation cannot occur in the follow-up welding work, and the good pre-fixing effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure connection, in particular to a pre-tightening connection device for steel structure buildings. Background Art

[0002] Steel structure is a structure made of steel materials and is one of the main types of building structures. It is usually connected by welding or bolts. When connecting steel structures, the connecting parts need to be initially fixed to reduce the occurrence of hole misalignment. The existing connection structure has poor stability when fixing adjacent steel structures. For this reason, we propose a pre-tightening connection device for steel structure buildings. Utility Model Content

[0003] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a pre-tightening connection device for steel structure buildings.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pre-tightening connection device for steel structure building, comprising a connecting steel structure of an I-shaped structure, both ends of the connecting steel structure are provided with installation reserved holes for positioning, the installation reserved holes are connected to the hollow part inside the connecting steel structure, the outside of the connecting steel structure is sleeved with a connecting card seat 2 and a connecting card seat 1, the insides of the connecting card seat 2 and the connecting card seat 1 are provided with access cavities, the upper and lower protruding parts of the connecting steel structure are inserted into the access cavity, and the connecting card seat 2 is installed on the outside of the connecting steel structure, the surfaces of the connecting card seat 2 and the connecting card seat 1 are provided with positioning sockets, the positioning sockets are connected to the inside of the access cavity, after the connecting card seat 2 is sleeved on the outside of the connecting steel structure, the two positioning sockets on the surface of the connecting card seat 2 correspond to the installation reserved holes on the surface of the connecting steel structure, bolts are used to pass through the positioning sockets and enter the inside of the installation reserved holes and then locked, and the connecting card seat 2 is installed on the outside of the connecting steel structure, and a connecting block is provided at the center of one side where the connecting card seat 1 and the connecting card seat 2 are close to each other.

[0005] Furthermore, a mounting socket is provided inside the connection block, a thread is provided on the inner wall of the mounting socket, and a connecting bolt is installed between the corresponding two connection blocks.

[0006] Furthermore, a card-mounting cavity is provided on the left and right surfaces of one end of the connecting card holder 1 corresponding to the connecting card holder 2, and the interior of the card-mounting cavity is an L-shaped structure.

[0007] Furthermore, the connecting socket 2 is provided with snap-in protrusions on the left and right side walls of one end corresponding to the connecting socket 1, and the size of the snap-in protrusions is adapted to the internal size of the snap-in cavity. The connecting socket 1 and the connecting socket 2 are spliced ​​by snapping the snap-in protrusions into the corresponding internal size of the snap-in cavity.

[0008] Furthermore, compression gaskets are fixed to the upper and lower surfaces of the left and right ends of the access cavity. After the connecting steel structure is inserted into the access cavity, the compression gaskets are squeezed together with the surface of the connecting steel structure.

[0009] Beneficial Effects

[0010] The utility model provides a pre-tightening connection device for steel structure buildings, which has the following beneficial effects:

[0011] 1. A pre-tightening connection device for a steel structure building comprises a connection base 1 and a connection base 2 which are spliced ​​and installed. The sides of the connection base 1 and the connection base 2 which are close to each other are both concave structures. The access cavity opened inside the connection base 1 and the connection base 2 has an internal size larger than the width of the protruding parts of the upper and lower sides of the connection steel structure. After the connection base 2 and the connection base 1 are respectively clamped on the outside of the two connection steel structures to be connected, the two adjacent connection steel structures are welded together, and the positions of the connection base 1 and the connection base 2 are adjusted so that the positioning holes opened on the surfaces of the connection base 1 and the connection base 2 correspond to the installation reserved holes on the surfaces of the connection steel structures. Bolts are used to pass through the positioning holes and clamp them into the corresponding installation reserved holes to lock the positions of the connection base 1 and the connection base 2. Then, the connection bolts are passed through between the two connection blocks to strengthen the connection between the connection base 1 and the connection base 2. When the device is in use, the stability of the two adjacent connection steel structures after welding can be improved by connecting the connection base 1 and the connection base 2.

[0012] 2. The pre-tightening connection device for steel structure buildings installs compression gaskets on the upper and lower sides of the interior of the access cavity. When the protruding parts on the upper and lower sides of the connecting steel structure are inserted into the interior of the access cavity, the bolts in the positioning sockets are rotated and pressed down, which will drive the compression gaskets to squeeze the surface of the connecting steel structure, so that the connecting base one or the connecting base two will not shake after being installed on the outside of the connecting steel structure. When the connecting base one and the connecting base two are installed, the connecting base two is clamped between the two clamping cavities opened on the surface of the connecting base one through two clamping protrusions, so that the connecting base one and the connecting base two become a whole. After the clamping connection between the connecting base one and the connecting base two, they will not loosen during long-term use. At the same time, the connection between the connecting base one and the connecting base two is further strengthened by connecting bolts. Through multiple reinforcement methods, the two unwelded connecting steel structures are positioned after being fitted, and will not be misaligned in subsequent welding work, thereby achieving a better pre-fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the utility model can be implemented, so they have no substantial technical significance.

[0014] Figure 1 It is a schematic diagram of the overall structure;

[0015] Figure 2 It is a schematic diagram of the structure of the second connection card seat;

[0016] Figure 3 It is a structural diagram of a connection card holder.

[0017] Legend:

[0018] 1. Connect the steel structure; 2. Connect the first card holder; 3. Connect the second card holder; 4. Access the cavity; 5. Install the reserved hole; 6. Connect the bolt; 7. Tighten the gasket; 8. Connect the block; 9. Install the socket; 10. Position the socket; 11. Install the protrusion; 12. Install the cavity. DETAILED DESCRIPTION

[0019] A pre-tightening connection device for steel structure buildings, such as Figures 1 to 3 As shown, the connecting steel structure 1 includes an I-shaped structure, and the surfaces of both ends of the connecting steel structure 1 are provided with installation reserved holes 5 for positioning, and the installation reserved holes 5 are connected to the hollow part inside the connecting steel structure 1, and the outer part of the connecting steel structure 1 is sleeved with a connecting card seat 2 3 and a connecting card seat 1 2, and the inner parts of the connecting card seat 2 3 and the connecting card seat 1 2 are provided with access cavities 4, and the upper and lower protruding parts of the connecting steel structure 1 are inserted into the access cavities 4, and the connecting card seat 2 3 is installed on the outer part of the connecting steel structure 1, and the connecting card seat 2 3 is connected to the outer part of the connecting steel structure 1. Positioning holes 10 are provided on the surface of the connecting seat 1 2, and the positioning holes 10 are connected to the inside of the access cavity 4. After the connecting seat 2 3 is mounted on the outside of the connecting steel structure 1, the two positioning holes 10 on the surface of the connecting seat 2 3 correspond to the installation reserved holes 5 on the surface of the connecting steel structure 1. Bolts are used to pass through the positioning holes 10 and enter the inside of the installation reserved holes 5 to lock the connecting seat 2 3, and then the connecting seat 2 3 is installed on the outside of the connecting steel structure 1. A connecting block 8 is provided at the center of the side where the connecting seat 1 2 and the connecting seat 2 3 are close to each other.

[0020] An installation socket 9 is provided inside the connecting block 8, and a thread is provided on the inner wall of the installing socket 9. A connecting bolt 6 is installed between the two corresponding connecting blocks 8, and the connecting socket 1 2 and the connecting socket 2 3 which are mounted on the outside of the connecting steel structure 1 are fixedly connected together by the connecting bolt 6.

[0021] A card-mounting cavity 12 is provided on the surfaces of the left and right sides of one end of the connecting card seat 1 corresponding to the connecting card seat 2 3. The interior of the card-mounting cavity 12 is an L-shaped structure. A card-mounting protrusion 11 is provided on the wall surfaces of the left and right sides of one end of the connecting card seat 2 3 corresponding to the connecting card seat 1 2. The size of the card-mounting protrusion 11 is adapted to the internal size of the card-mounting cavity 12. After the connecting card seat 1 2 and the connecting card seat 2 3 are installed at the near ends of the two connecting steel structures 1 that need to be connected, the connecting card seat 1 2 and the connecting card seat 2 3 are inserted into the interior of the card-mounting cavity 12 through the card-mounting protrusion 11 and then assembled together. Then the two connecting steel structures 1 are welded and assembled together to complete the fixation.

[0022] Compression gaskets 7 are fixed to the upper and lower surfaces of the left and right ends of the interior of the access cavity 4. After the connecting steel structure 1 is inserted into the interior of the access cavity 4, the compression gasket 7 is squeezed together with the surface of the connecting steel structure 1. After the connecting base 1 2 and the connecting base 2 3 are installed on the surface of the connecting steel structure 1, the bolts are inserted into the positioning sockets 10 and enter into the installation reserved holes 5 on the surface of the connecting steel structure 1 and rotated to lock for secondary fixation, so that the two adjacent connecting steel structures 1 are more stable after welding.

[0023] The working principle of this utility model:

[0024] By providing a connecting card seat 1 2 and a connecting card seat 2 3 which are spliced ​​and installed, the sides of the connecting card seat 1 2 and the connecting card seat 2 3 which are close to each other are both concave structures, and the access cavity 4 opened inside the connecting card seat 1 2 and the connecting card seat 2 3 has an internal size larger than the width of the protruding parts of the upper and lower sides of the connecting steel structure 1. After the connecting card seat 2 3 and the connecting card seat 1 2 are respectively clamped on the outside of the two connecting steel structures 1 to be connected, the two adjacent connecting steel structures 1 are welded together, and the positions of the connecting card seat 1 2 and the connecting card seat 2 3 are adjusted so that the positioning holes 10 opened on the surfaces of the connecting card seat 1 2 and the connecting card seat 2 3 correspond to the installation reserved holes 5 on the surface of the connecting steel structure 1. Bolts are used to pass through the positioning holes 10 and snap into the corresponding installation reserved holes 5 to lock the positions of the connecting card seat 1 2 and the connecting card seat 2 3. Then, the connecting bolts 6 are passed through between the two connecting blocks 8 to strengthen the connection between the connecting card seat 1 2 and the connecting card seat 2 3. When the device is in use, the stability of the two adjacent connecting steel structures 1 after welding can be improved by connecting the connecting card seat 1 2 and the connecting card seat 2 3.

[0025] By installing the compression gaskets 7 on the upper and lower sides of the access cavity 4, when the upper and lower protruding parts of the connecting steel structure 1 are inserted into the access cavity 4, the bolts in the positioning sockets 10 are rotated and pressed down, which will drive the compression gaskets 7 to squeeze the surface of the connecting steel structure 1, so that the connecting base 1 2 or the connecting base 2 3 will not shake after being installed on the outside of the connecting steel structure 1. When the connecting base 1 2 and the connecting base 2 3 are installed, the connecting base 2 3 is clamped between the two clamping cavities 12 opened on the surface of the connecting base 1 2 through two clamping protrusions 11, so that the connecting base 1 2 and the connecting base 2 3 become a whole. After the clamping connection between the connecting base 1 2 and the connecting base 2 3, it will not loosen during long-term use. At the same time, the connection between the connecting base 1 2 and the connecting base 2 3 is further strengthened by the connecting bolts 6. Through multiple reinforcement methods, the two unwelded connecting steel structures 1 are positioned after being fitted, and will not be misaligned in subsequent welding work, which has a better pre-fixing effect.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A pre-tightening connection device for steel structure buildings, comprising an I-shaped connecting steel structure (1), both end surfaces of the connecting steel structure (1) are provided with installation reserved holes (5) for positioning, the installation reserved holes (5) are connected to the hollow part inside the connecting steel structure (1), the outside of the connecting steel structure (1) is sleeved with a second connecting clamp (3) and a first connecting clamp (2), characterized in that: The connection card seat 2 (3) and the connection card seat 1 (2) are both provided with access cavities (4) inside. After the upper and lower protruding parts of the connection steel structure (1) are inserted into the access cavities (4), the connection card seat 2 (3) is installed outside the connection steel structure (1). The surfaces of the connection card seat 2 (3) and the connection card seat 1 (2) are both provided with positioning holes (10). The positioning holes (10) are connected and enter the inside of the access cavity (4). After the connection card seat 2 (3) is sleeved on the outside of the connection steel structure (1), the two positioning holes (10) on the surface of the connection card seat 2 (3) correspond to the installation reserved holes (5) on the surface of the connection steel structure (1). Bolts are used to pass through the positioning holes (10) and enter the inside of the installation reserved holes (5) to be locked, and then the connection card seat 2 (3) is installed outside the connection steel structure (1). A connection block (8) is provided at the center of one side where the connection card seat 1 (2) and the connection card seat 2 (3) are close to each other.

2. A pre-tightening connection device for steel structure buildings according to claim 1, characterized in that: The connection block (8) is provided with a mounting hole (9) inside, and the inner wall surface of the mounting hole (9) is provided with a thread, and a connecting bolt (6) is installed between two corresponding connection blocks (8).

3. A pre-tightening connection device for steel structure buildings according to claim 1, characterized in that: A card-mounting cavity (12) is provided on the left and right surfaces of one end of the connecting card seat 1 (2) corresponding to the connecting card seat 2 (3), and the interior of the card-mounting cavity (12) is an L-shaped structure.

4. A pre-tightening connection device for steel structure buildings according to claim 1, characterized in that: The connecting card seat 2 (3) is provided with a clamping protrusion (11) on the left and right side wall surfaces of one end corresponding to the connecting card seat 1 (2); the size of the clamping protrusion (11) is adapted to the internal size of the clamping cavity (12); the connecting card seat 1 (2) and the connecting card seat 2 (3) are spliced ​​by clamping the clamping protrusion (11) into the corresponding clamping cavity (12).

5. A pre-tightening connection device for steel structure buildings according to claim 1, characterized in that: Compression gaskets (7) are fixed to the upper and lower surfaces of both left and right ends of the access cavity (4). After the connecting steel structure (1) is inserted into the access cavity (4), the compression gasket (7) and the surface of the connecting steel structure (1) are squeezed together.

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