Buckling-restrained brace device
By designing a combined structure of the connecting part, fixing part and the lower support part of the buckling brace, the problem of easy bending of the grating during highway paving was solved, the stable superposition of the grating and the overall stability were achieved, and the seismic performance of the highway was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 王剑
- Filing Date
- 2023-06-05
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional buckling bracing devices are prone to bending due to grating settlement during highway paving and cannot effectively restrain buckling, affecting stability and seismic performance.
A buckling-resistant support device was designed. Through the combination of a connecting part, a fixing part and a lower support part, and by using threaded connection and plug-in method, the stable superposition and constraint of the grid plate are realized, the overall stability is enhanced and settlement and buckling are avoided.
It improves the stability and seismic resistance of the grating, prevents bending caused by highway settlement, and enhances the overall load-bearing capacity and seismic performance of the highway.
Smart Images

Figure CN121875145A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of highway engineering technology, and in particular to a buckling brace device. Background Technology
[0002] Traditional structures may lack necessary seismic design, and seismic reinforcement is required after the structure is damaged by an earthquake. Buckling-restrained braces can significantly improve the lateral stiffness and energy dissipation capacity of a structure, thereby improving its seismic resistance. Due to their excellent mechanical properties, low cost, and simple installation process, buckling-restrained braces are needed in highway engineering to ensure highway quality.
[0003] Currently, traditional buckling bracing devices typically require the addition of grating plates during highway paving. However, due to the long overall structure of the grating plates, they are prone to bending when the road surface settles, making them inconvenient to use. In addition, highways are usually paved in multiple layers, and the grating plates are often laid separately inside the road, so they cannot restrain each other when buckling occurs, making them inconvenient to use. Summary of the Invention
[0004] In view of this, the present invention provides a buckling brace device having a connecting part and a fixing part. By rotatably connecting the connecting block in the adjusting groove, it is easy to fix the connecting part by threaded rod, thereby facilitating the stacking process according to the road surface paving. The restraining block is inserted into the adjusting groove, and the connecting block is used by the hexagonal prism protrusion, thereby preventing it from loosening and facilitating its use. The grid plate is fixed by the stacked connecting part in conjunction with the outward extension part and the lower support part, which increases the interconnection between the grid plates while maintaining stability, thereby facilitating the mutual restraint between the grid plates and facilitating its use. By inserting the fixing frame into the ground, it is easy to maintain the overall stability of the device through the road surface, thereby facilitating the support of the grid plate and preventing it from buckling. It also supports the road while maintaining stability, thereby preventing it from being affected by settlement. The restraining rod is inserted into the stacked block and the fixing block, which facilitates the restraint of both, thereby facilitating the overall stability of the device.
[0005] This invention provides a buckling-resistance brace, specifically comprising: a fixing part, a connecting part, a lower support part, and an outwardly extending part; the fixing part includes: a stacking block; the stacking block has a rectangular block structure, a rectangular groove on its outer wall, a circular insertion hole on its surface, and a cylindrical protrusion on its surface, and the stacking block is positioned above the fixing frame of the fixing part; the connecting part is located inside the fixing part, the connecting block of the connecting part is rotatably connected to the adjusting groove of the fixing part, the connecting block is threadedly connected to the top of the fixing frame, and the constraint block of the connecting part is inserted into the adjusting groove; the connecting block has a cylindrical structure, an annular protrusion on its outer wall, a threaded rod-shaped protrusion at the bottom of the connecting block, and six... The lower support is located outside the fixed part. The fixing block of the lower support is fixed to the stacking block by screws. The lower support includes a tightening block. The tightening block is a T-shaped block structure with a shaft hole. A cylindrical block is rotatably connected in the shaft hole of the tightening block. The cylindrical block of the tightening block has a hexagonal groove and a threaded rod-shaped protrusion. The tightening block is slidably connected to the lower support frame of the lower support. The outward extension is located above the lower support. The protective frame of the outward extension is inserted into the lower support frame. The outward extension includes an outward frame. The outward frame is a square plate structure with an L-shaped protrusion. There are two sets of outward frames. The two sets of outward frames are fixed to the outer wall of the protective frame by screws.
[0006] Optionally, the fixing frame is a square plate structure, with a cylindrical protrusion at the bottom, a conical protrusion at the bottom of the cylindrical protrusion, a threaded through hole at the top, and a circular insertion hole on the fixing frame.
[0007] Optionally, the fixing part further includes: a constraint rod; the adjusting groove is a cylindrical groove, with an annular groove connected to it, and a hexagonal prism-shaped insertion hole connected to it, the adjusting groove being disposed inside the stacked block; the constraint rod is a cylindrical rod-shaped structure, with a conical protrusion, a cylindrical protrusion, and a cylindrical groove, the constraint rod being inserted into the fixing frame and into the stacked block.
[0008] Optionally, the connecting part further includes: a mating groove; the mating groove is a threaded rod-shaped groove, and the mating groove is disposed on the top of the connecting block.
[0009] Optionally, the connecting part further includes: a top cover; the constraint block is a disc-shaped structure, the bottom of the constraint block is provided with a hexagonal prism-shaped protrusion, the constraint block is provided with a hexagonal prism-shaped through hole, and the constraint block is fitted onto the connecting block; the top cover is a disc-shaped structure, the bottom of the top cover is provided with a threaded rod-shaped protrusion, and the top cover is threadedly connected to the mating groove.
[0010] Optionally, the fixing block is a rectangular block structure with a cross-shaped protrusion; the lower support is a rectangular block structure with a cross-shaped groove, two sets of L-shaped protrusions, and a rectangular groove, and the lower support is fixed to the fixing block by screws.
[0011] Optionally, the lower support further includes: a lower fixing frame; the lower fixing frame is a T-shaped block structure, the lower fixing frame is provided with a rectangular protrusion, the bottom of the rectangular protrusion of the lower fixing frame is provided with a conical protrusion, the lower fixing frame is provided with a threaded through hole, the lower fixing frame is slidably connected to the lower support frame, and the lower fixing frame is threadedly connected to the threaded rod-shaped protrusion of the tightening block.
[0012] Optionally, the extended portion further includes: a material feeding trough; the protective frame is an inverted U-shaped structure, and a rectangular protrusion is provided on the inner wall of the protective frame; the material feeding trough is an inverted T-shaped groove, and the material feeding trough is connected to a circular through hole, and the material feeding trough is located on the top of the protective frame.
[0013] Optionally, the extended portion further includes: a pressure strip; the pressure strip has a cuboid structure, and cylindrical protrusions are provided on the pressure strip, which is fixed to the top of the protective frame by screws.
[0014] Beneficial effects
[0015] The bottom of this invention is provided with a fixing part. By opening a threaded groove on the fixing frame, the fixing frame is fixed by the connecting block, which facilitates the stacking of the connecting parts and makes it easy to adjust according to the road surface. By providing a rectangular groove on the outer wall of the stacking block, it is easy to fix the fixing block, which increases the tightness between the fixing block and the stacking block and makes it easier to maintain stability. At the same time, by opening an adjustment groove inside the stacking block, it is easy to fix the connecting block, which makes it easy to fix the stacking block during the adjustment process, thus making it easy to use. The constraint rod is inserted into the stacking block and the fixing block, which makes it easy to constrain both of them, thereby making it easy to maintain the overall stability of the device.
[0016] Furthermore, the connecting part is located inside the fixing part. By rotating the connecting block into the adjusting groove, it connects to the fixing frame through the threaded rod while rotating, thus facilitating the fixing of the stacking blocks and making them easy to stack. By opening a mating groove on the connecting block, it is easier to assist in stacking and fix the top cover. The top cover protects the mating groove and prevents it from becoming blocked. By inserting the constraint block into the adjusting groove and fitting it onto the connecting block, the two are mutually constrained by the hexagonal prism protrusion, thus locking them together and facilitating their stability.
[0017] In addition, the lower support is located outside the fixed part. The fixed block is fixed to the outer wall of the stacked block by screws, which makes it easy to fix the lower support while maintaining stability. The tightening block and the lower fixed frame are slidably connected in the lower support frame, which is fixed by the lower fixed frame while maintaining stability, making it easy to use. This helps to support the lower support frame and make it easy to maintain the stability of the grid plate. By rotating the tightening block, the lower fixed frame is tightened under the action of the threaded rod, which makes it easier to maintain stability and make it easy to use.
[0018] In addition, the outward extension is located above the lower support. By inserting the protective frame into the two sets of lower support frames, it is easier to maintain its stability and protect the lower support frames, preventing building materials from entering them. By opening material channels on the protective frame, it can increase the tightness between the device and the road while maintaining stability, thus facilitating the use of the device. By fixing the pressure strip to the top of the protective frame, it is easier to fix the grid plate, thus facilitating its overall stability and preventing buckling due to road settlement, thus facilitating its use. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.
[0020] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.
[0021] In the attached diagram:
[0022] Figure 1 A schematic diagram of a three-dimensional structure according to an embodiment of the present invention is shown;
[0023] Figure 2 A schematic diagram of a three-dimensional bottom-view structure according to an embodiment of the present invention is shown;
[0024] Figure 3 A schematic diagram of the exploded structure according to an embodiment of the present invention is shown;
[0025] Figure 4 A schematic diagram of the exploded bottom view structure according to an embodiment of the present invention is shown;
[0026] Figure 5 A schematic diagram of a partially cut-out structure according to an embodiment of the present invention is shown;
[0027] Figure 6 The invention is illustrated by an embodiment of the invention. Figure 5 A schematic diagram of the enlarged structure of section A;
[0028] Figure 7 The invention is illustrated by an embodiment of the invention. Figure 5 A schematic diagram of the enlarged structure of section B is shown.
[0029] Figure 8 A schematic diagram of the fixing assembly structure according to an embodiment of the present invention is shown;
[0030] Figure 9 A schematic diagram of the connection assembly structure according to an embodiment of the present invention is shown;
[0031] Figure 10 A schematic diagram of the lower support assembly structure according to an embodiment of the present invention is shown;
[0032] Figure 11 A schematic diagram of the extended part assembly structure according to an embodiment of the present invention is shown.
[0033] List of reference numerals
[0034] 1. Fixing part; 101. Fixing frame; 102. Stacking block; 103. Adjustment groove; 104. Constraint rod; 2. Connecting part; 201. Connecting block; 202. Docking groove; 203. Constraint block; 204. Top cover; 3. Lower support part; 301. Fixing block; 302. Lower support frame; 303. Tightening block; 304. Lower fixing frame; 4. Outer part; 401. Protective frame; 402. Material feeding chute; 403. Pressing strip; 404. Outer frame. Detailed Implementation
[0035] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.
[0036] Example: Please refer to Figures 1 to 11 :
[0037] This invention proposes a buckling-resistance brace, comprising: a fixing part 1, a connecting part 2, a lower support part 3, and an outwardly extending part 4; the fixing part 1 includes: a stacking block 102; the stacking block 102 is a rectangular block structure, with a rectangular groove on its outer wall, a circular insertion hole on its surface, and a cylindrical protrusion on its surface, and is positioned above the fixing frame 101 of the fixing part 1; the stacking block 102 assists in the installation and fixing of the connecting part 2 and the fixing block 301, making it easier to maintain stability and thus easier to use; the connecting part 2 is located inside the fixing part 1. The connecting block 201 of the connecting part 2 is rotatably connected to the adjusting groove 103 of the fixing part 1. The connecting block 201 is threadedly connected to the top of the fixing frame 101. The constraint block 203 of the connecting part 2 is inserted into the adjusting groove 103. The connecting block 201 has a cylindrical structure. The outer wall of the connecting block 201 is provided with an annular protrusion, the bottom of the connecting block 201 is provided with a threaded rod-shaped protrusion, and the top of the connecting block 201 is provided with a hexagonal prism-shaped protrusion. The connecting block 201 is used to assist in the installation and fixation of other structures of the device, making it easier to maintain stability. At the same time, it is connected to the fixing frame 101 through the threaded rod at the bottom, so that... It is easy to use; the lower support 3 is set outside the fixed part 1, and the fixing block 301 of the lower support 3 is fixed to the stacking block 102 by screws. The lower support 3 includes: a tightening block 303; the tightening block 303 is a T-shaped block structure, the tightening block 303 is provided with a shaft hole, a cylindrical block is rotatably connected in the shaft hole of the tightening block 303, the cylindrical block of the tightening block 303 is provided with a hexagonal groove, the cylindrical block of the tightening block 303 is provided with a threaded rod-shaped protrusion, the tightening block 303 is slidably connected to the lower support frame 302 of the lower support 3; the tightening block 303 is used to adjust the lower fixed frame 304 to the left and right of the threaded rod. The outer part 4 is fixed to maintain its stability and facilitate its use. The outer part 4 is located above the lower support 3, and the protective frame 401 of the outer part 4 is inserted into the lower support 302. The outer part 4 includes an outer frame 404. The outer frame 404 is a square plate structure with an L-shaped protrusion. There are two sets of outer frames 404, and the two sets of outer frames 404 are fixed to the outer wall of the protective frame 401 by screws. The outer frame 404 is used to increase the contact area with the road construction materials through the external L-shaped frame while maintaining stability, thereby increasing its overall stability and facilitating its use.
[0038] like Figure 8As shown, the fixing frame 101 is a square plate structure. The bottom of the fixing frame 101 has a cylindrical protrusion, and the bottom of the cylindrical protrusion has a conical protrusion. The top of the fixing frame 101 has a threaded through hole, and the fixing frame 101 has a circular insertion hole. The fixing frame 101 is inserted into the ground to facilitate stability, thereby preventing the device from being affected by road settlement and facilitating the stability of the grid. The fixing part 1 also includes: a constraint rod 104; the adjusting groove 103 is a cylindrical groove, with an annular groove connected to the adjusting groove 103, and a hexagonal prism connected to the adjusting groove 103. The insertion hole and adjustment groove 103 are located inside the stacking block 102; the adjustment groove 103 is used to assist in the installation of the connecting block 201, making it easy to adjust and thus easy to use; the constraint rod 104 is a cylindrical rod structure, with a conical protrusion, a cylindrical protrusion, and a cylindrical groove on the constraint rod 104. The constraint rod 104 is inserted into the fixing frame 101 and into the stacking block 102; the constraint rod 104 is used to insert into the fixing frame 101 and the stacking block 102, making it easy to maintain overall stability and thus easy to use.
[0039] like Figure 9 As shown, the connecting part 2 further includes: a mating groove 202; the mating groove 202 is a threaded rod-shaped groove, and the mating groove 202 is set on the top of the connecting block 201; the mating groove 202 is used to assist in the installation of the top cover 204, thereby facilitating its stability and the docking between the connecting blocks 201, thus facilitating its use; the connecting part 2 also includes: a top cover 204; a constraint block 203 is a disc-shaped structure, the bottom of the constraint block 203 is provided with a hexagonal prism-shaped protrusion, the constraint block 203 is provided with a hexagonal prism-shaped through hole, and the constraint block 203 is fitted onto the connecting block 201; the constraint block 203 is used to constrain the connecting block 201 after it is fixed, thereby preventing it from loosening and facilitating its use; the top cover 204 is a disc-shaped structure, the bottom of the top cover 204 is provided with a threaded rod-shaped protrusion, and the top cover 204 is threadedly connected to the mating groove 202; the top cover 204 is used to cover the mating groove 202, thereby preventing building materials from entering the mating groove 202.
[0040] like Figure 10As shown, the fixing block 301 is a rectangular block structure with a cross-shaped protrusion. The fixing block 301 serves to maintain stability while simultaneously fixing the lower support frame 302, facilitating its use. The lower support frame 302 is also a rectangular block structure with a cross-shaped groove, two sets of L-shaped protrusions, and a rectangular groove. The lower support frame 302 is fixed to the fixing block 301 with screws. The lower support frame 302 is used to support the grating plate through a docking auxiliary, thereby facilitating its maintenance. To maintain stability and facilitate use, the lower support 3 also includes a lower fixing frame 304. The lower fixing frame 304 is a T-shaped block structure with a rectangular protrusion on it. The bottom of the rectangular protrusion of the lower fixing frame 304 has a conical protrusion. The lower fixing frame 304 has a threaded through hole. The lower fixing frame 304 is slidably connected to the lower support frame 302 and threadedly connected to the threaded rod-shaped protrusion of the tightening block 303. The lower fixing frame 304 is used to assist in supporting the lower support frame 302, thereby facilitating its stability and thus facilitating the stability of the grid plate, making it easy to use.
[0041] like Figure 11 As shown, the extended part 4 also includes: a material feeding trough 402; a protective frame 401 with an inverted U-shaped structure and rectangular protrusions on its inner wall; the protective frame 401 is used to completely cover the lower support part 3, thereby preventing road paving material from seeping into the interior of the lower support part 3, thus facilitating its use; the material feeding trough 402 is an inverted T-shaped groove, connected to a circular through hole, and is located on top of the protective frame 401; the material feeding trough 402 is used to allow the paved road construction material to seep into it after the device is fixed. The outer section 4 further includes a pressure strip 403. The pressure strip 403 has a cuboid structure and cylindrical protrusions. The pressure strip 403 is fixed to the top of the protective frame 401 by screws. The pressure strip 403 is used to constrain the grid plate during the tightening process to make it more stable, and to support the grid to prevent it from buckling under external force, thus facilitating its use.
[0042] The specific usage and function of this embodiment: In this invention, before use, the device needs to be manually moved to the designated location. Then, a cylindrical groove is opened on the road. During use, the fixing frame 101 is inserted into the preset groove, so that the first layer of road construction material is laid while ensuring stability. After compaction, the connecting block 201 is rotated, so that it is connected to the fixing frame 101 through the thread on the rod while rotating. At the same time, the stacking block 102 is installed on the top of the fixing frame 101. After they are connected, the constraint rod 104 is inserted into the ground after passing through the fixing frame 101 and the stacking block 102, so that the whole is easy to maintain stability. After the connecting block 201 is connected, the constraint block 203 is inserted. Within the adjusting groove 103, it is simultaneously fitted onto the connecting block 201, allowing the hexagonal prism-shaped protrusion to constrain the connecting block 201, preventing rotation after fixing and thus preventing loosening of the connecting block 201 and the stacking block 102. Then, the fixing block 301 is fixed to the outer wall of the stacking block 102 with screws, and the lower support 302 is fixed to both sets of fixing blocks 301. This facilitates the adjustment of the tightening block 303 and the lower support 304, allowing them to slide and adjust their corresponding positions. After adjustment, rotating the threaded rod inside the tightening block 303 increases the stability of the lower support 302 while maintaining stability. Finally, the protective frame 401 is inserted into the lower support 302, and the outer... The display frame 404 is fixed to the outer wall of the protective frame 401 with screws to facilitate stability. The top cover 204 is then threaded into the docking groove 202 to conceal it. A second layer of road construction material is then laid, flush with the top of the stacked block 102. After compaction, the outer display frame 404 increases the contact area with the road construction material, enhancing stability and mitigating vertical pressure on the road surface through its L-shaped structure, thus facilitating use. Simultaneously, the material is pushed into the material feeding chute 402 through compression, increasing the tightness between the device and the road. A grating plate is then laid on the top layer, followed by pressing with mesh strips. 403 is fixed to make it easy to maintain stability, and then it is repeatedly laid to make it easy to use. Under the action of the lower support 3 and the outward extension 4, the grid plate is supported and locked to make it easy to maintain stability. This allows the grid plate to be tightened when it is subjected to external force and to prevent it from bending, thus making it easy to maintain the basic state of the road. The mutual superposition of the fixing frame 101 and the stacking block 102 allows the road surface to be directly transmitted to the underlying ground, thus making it easy to maintain the overall stability of the device and making it easy to use. At the same time, by using the device in conjunction with the grid plate to lay the road, the overall bearing capacity of the road is increased, making it more earthquake resistant and thus easier to use.
Claims
1. A buckling-resistance brace, characterized in that, include: The fixing part (1), connecting part (2), lower support part (3), and outward part (4) are provided. The fixing part (1) includes: a stacking block (102); the stacking block (102) is a rectangular block structure, the outer wall of the stacking block (102) is provided with a rectangular groove, the stacking block (102) is provided with a circular insertion hole, the stacking block (102) is provided with a cylindrical protrusion, and the stacking block (102) is located above the fixing frame (101) of the fixing part (1); the connecting part (2) is located inside the fixing part (1), connecting... The connecting block (201) of the connecting part (2) is rotatably connected to the adjusting groove (103) of the fixing part (1). The connecting block (201) is threadedly connected to the top of the fixing frame (101). The constraint block (203) of the connecting part (2) is inserted into the adjusting groove (103). The connecting block (201) is a cylindrical structure. The outer wall of the connecting block (201) is provided with an annular protrusion. The bottom of the connecting block (201) is provided with a threaded rod-shaped protrusion. The top of the connecting block (201) is provided with a hexagonal prism-shaped protrusion. The lower support Part (3) is located outside the fixed part (1). The fixing block (301) of the lower support part (3) is fixed to the stacking block (102) by screws. The lower support part (3) includes: a tightening block (303); the tightening block (303) is a T-shaped block structure. The tightening block (303) is provided with a shaft hole. A cylindrical block is rotatably connected in the shaft hole of the tightening block (303). The cylindrical block of the tightening block (303) is provided with a hexagonal groove. The cylindrical block of the tightening block (303) is provided with a threaded rod-shaped protrusion. The lower support frame (302) of the lower support part (3) is slidably connected; the extension part (4) is set above the lower support part (3), and the protective frame (401) of the extension part (4) is inserted into the lower support frame (302). The extension part (4) includes: the extension frame (404); the extension frame (404) is a square plate structure, and the extension frame (404) is provided with an L-shaped protrusion. There are two sets of extension frames (404), and the two sets of extension frames (404) are respectively fixed to the outer wall of the protective frame (401) by screws.
2. The buckling-resistance brace according to claim 1, characterized in that: The fixing frame (101) is a square plate structure. The bottom of the fixing frame (101) is provided with a cylindrical protrusion, the bottom of the cylindrical protrusion of the fixing frame (101) is provided with a conical protrusion, the top of the fixing frame (101) is provided with a threaded through hole, and the fixing frame (101) is provided with a circular insertion hole.
3. The buckling-resistance brace according to claim 1, characterized in that: The fixing part (1) further includes: a constraint rod (104); the adjusting groove (103) is a cylindrical groove, the adjusting groove (103) is connected to an annular groove, the adjusting groove (103) is connected to a hexagonal prism insertion hole, and the adjusting groove (103) is set inside the stacking block (102); the constraint rod (104) is a cylindrical rod structure, the constraint rod (104) is provided with a conical protrusion, the constraint rod (104) is provided with a cylindrical protrusion, the constraint rod (104) is provided with a cylindrical groove, the constraint rod (104) is inserted into the fixing frame (101), and the constraint rod (104) is inserted into the stacking block (102).
4. The buckling-resistance brace according to claim 1, characterized in that: The connecting part (2) further includes a mating groove (202); the mating groove (202) is a threaded rod-shaped groove, and the mating groove (202) is located on the top of the connecting block (201).
5. The buckling-resistance brace according to claim 4, characterized in that: The connecting part (2) further includes: a top cover (204); the constraint block (203) is a disc-shaped structure, the bottom of the constraint block (203) is provided with a hexagonal prism-shaped protrusion, the constraint block (203) is provided with a hexagonal prism-shaped through hole, and the constraint block (203) is fitted onto the connecting block (201); the top cover (204) is a disc-shaped structure, the bottom of the top cover (204) is provided with a threaded rod-shaped protrusion, and the top cover (204) is threadedly connected to the mating groove (202).
6. The buckling-resistance brace according to claim 1, characterized in that: The fixing block (301) is a rectangular block structure with a cross-shaped protrusion on it; the lower support (302) is a rectangular block structure with a cross-shaped groove on it, two sets of L-shaped protrusions on it, and a rectangular groove on it. The lower support (302) is fixed to the fixing block (301) with screws.
7. The buckling-resistance brace according to claim 1, characterized in that: The lower support (3) further includes: a lower fixing frame (304); the lower fixing frame (304) is a T-shaped block structure, the lower fixing frame (304) is provided with a rectangular protrusion, the bottom of the rectangular protrusion of the lower fixing frame (304) is provided with a conical protrusion, the lower fixing frame (304) is provided with a threaded through hole, the lower fixing frame (304) is slidably connected to the lower support frame (302), and the lower fixing frame (304) is threadedly connected to the threaded rod-shaped protrusion of the tightening block (303).
8. The buckling-resistance brace according to claim 1, characterized in that: The extended part (4) further includes: a material feeding trough (402); the protective frame (401) is an inverted U-shaped structure, and a rectangular protrusion is provided on the inner wall of the protective frame (401); the material feeding trough (402) is an inverted T-shaped groove, and a circular through hole is connected to the material feeding trough (402), which is located on the top of the protective frame (401).
9. The buckling-resistance brace according to claim 1, characterized in that: The extended part (4) further includes: a pressure strip (403); the pressure strip (403) is a cuboid structure, and the pressure strip (403) has cylindrical protrusions. The pressure strip (403) is fixed to the top of the protective frame (401) by screws.