An angle support connector and its drilling assembly fixture
By designing corner support connectors and drilling assembly fixtures, the high cost and low flexibility of disc-type connectors were solved, achieving stable connection and efficient drilling of three-dimensional brackets, reducing production costs and improving versatility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN YUNHAI MAGANG
- Filing Date
- 2025-07-25
- Publication Date
- 2026-05-26
AI Technical Summary
Existing disc-type connectors are expensive, have limited flexibility, require high transportation and storage standards, and have high requirements for the flatness of construction sites, resulting in significant financial pressure and inflexible use for small and medium-sized construction companies.
Design a corner support connector, including a first fixed sleeve, a second fixed sleeve, a third fixed sleeve and a combined sleeve, which can be quickly installed through connecting pins and threaded holes, and is equipped with a drilling assembly fixture to improve positioning accuracy and processing efficiency.
This achieves a stable connection of the three-dimensional coordinate structure support, improves the versatility and compatibility of the connectors, reduces production costs, and improves the quality and efficiency of drilling.
Smart Images
Figure CN224273395U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rigid pipe connection technology, specifically to a corner support connector and its drilling assembly fixture. Background Technology
[0002] Three-dimensional coordinate structures are frequently used in the construction of frames, scaffolding, or special supports. These connections are typically assembled and fixed using snap-fit connectors.
[0003] Disc-lock scaffolding is a commonly used type of scaffolding in construction, offering advantages such as structural stability, high load-bearing capacity, high safety, few potential hazards, versatility, and wide applicability. However, it also has some drawbacks:
[0004] ① The initial investment cost is high. The material and processing costs of disc-lock connectors are relatively high. The purchase price of a set of scaffolding is about 2-3 times that of coupler-type scaffolding, which may put financial pressure on small and medium-sized construction companies.
[0005] ② The dimensions of the disc-lock connectors are fixed, which limits their flexibility. The lengths of the uprights and horizontal bars are designed according to the standard module. If a construction scenario with non-standard dimensions is encountered, special parts need to be customized. Otherwise, it may affect the adaptability of the scaffold. In contrast, the dimensions of the coupler-type scaffold can be adjusted by cutting steel pipes, which is more flexible.
[0006] ③ The transportation and storage requirements of disc-type connectors are high. Because their components are rigid structures and the length of a single upright is relatively long, special vehicles are required for transportation, and they must be stacked neatly to prevent deformation. They occupy a large storage space and increase logistics and warehousing costs.
[0007] ④ The disc-lock type connector has high requirements for the flatness of the construction site. Its frame installation must be based on a flat foundation. If the ground is uneven, an adjustable base needs to be set to adjust the height. Otherwise, it will easily lead to uneven stress on the uprights. In contrast, the coupler type scaffold can adapt to slightly uneven ground by finely adjusting the length of the steel pipe.
[0008] The core advantages of disc-type connectors lie in their stability, efficiency, and safety, making them suitable for large-scale, high-standard construction projects; however, they are limited by their manufacturing costs and flexibility of use. Summary of the Invention
[0009] To solve the above problems, the present utility model provides a corner support connecting member and its drilling and assembling fixture, so as to solve many problems faced in the process of bracket connection and drilling processing in the prior art; for the support connecting member, ensure that it can firmly connect each component of the bracket, and ensure the stability of the bracket structure under different loads, while achieving quick and easy installation, with wide generality and compatibility; for the drilling and assembling fixture, it aims to solve the problems of poor adaptability of the existing drilling and assembling fixture to the multi-part processing of the support connecting member, low positioning accuracy, complex operation and low efficiency, etc., and achieve accurate positioning and efficient clamping of the support connecting member, meet diverse drilling requirements, improve the quality and efficiency of drilling processing, and reduce production costs.
[0010] The first object of the present utility model is to provide a corner support connecting member for realizing the fixation and connection of a three-dimensional coordinate structure bracket, which is characterized in that it includes: a first fixed sleeve 1, a second fixed sleeve 2, a third fixed sleeve 3 and a combined sleeve 4; the first fixed sleeve 1 and the second fixed sleeve 2 are a fixed whole, the third fixed sleeve 3 is respectively connected to the first fixed sleeve 1 and the second fixed sleeve 2 through connecting pins, and the combined sleeve 4 is formed by combining the ends of the first three fixed sleeves.
[0011] The first fixed sleeve 1 and the second fixed sleeve 2 have the same length, the lower ends of the two are perpendicularly connected to each other, the inner sides are respectively used as two right-angled sides of an isosceles right triangle, and are connected as a whole through semi-circular arc walls provided at their lower ends, and the sleeving holes on the first fixed sleeve 1 and the second fixed sleeve 2 are partially hollowed out in the vertical projection area on the semi-circular arc wall.
[0012] On the outer sides of the lower ends of the first fixed sleeve 1 and the second fixed sleeve 2, two of the four-piece combined pin seats 5 are respectively arranged at intervals, and the other two matching ones are fixed at both ends of the semi-circular arc wall at the bottom of the third fixed sleeve 3. Concentric pin holes are provided on the four-piece combined pin seats 5. After inserting the connecting pins, the first fixed sleeve 1, the second fixed sleeve 2 and the third fixed sleeve 3 are jointly combined into a "丄"-shaped support connecting member, which are respectively connected to a vertical pipe fitting and two horizontal pipe fittings in the same plane as it. The semi-circular arc walls provided at the ends of the first fixed sleeve 1 and the second fixed sleeve 2, and the semi-circular arc walls provided at the ends of the third fixed sleeve 3, together with the two four-piece combined pin seats 5, jointly form the combined sleeve 4, which is connected to a horizontal pipe fitting perpendicular to the aforementioned three pipe fittings.
[0013] In addition, a pipe fitting locking mechanism is also provided; it includes threaded holes 6 respectively provided on the pipe walls of the first fixed sleeve 1, the second fixed sleeve 2, and the third fixed sleeve 3 and locking screws installed in the threaded holes 6; in addition, inside the intersection part where the first fixed sleeve 1 and the second fixed sleeve 2 intersect perpendicularly, a threaded hole 6 inclined at 45° and a matching locking screw are provided.
[0014] Preferably, a threaded hole 6 and a matching locking screw are provided on the semi-circular arc wall at the end of the third fixing sleeve 3.
[0015] The second objective of this utility model is to provide a drilling assembly fixture for a corner support connector, comprising a base plate 7 and a drilling support mechanism, on which a drill bit 8 is mounted; a vertical support plate 9 is provided on the edge of the base plate 7, and an mounting plate 10 is fixed on the upper edge of the vertical support plate 9. Two mounting holes are symmetrically opened on the mounting plate 10 with the center line as a reference, and height-adjustable sleeve positioning rods 11 are installed in the two mounting holes respectively; below the two sleeve positioning rods 11, a cylindrical rod 12 is horizontally arranged, the diameter of which is smaller than the inner diameter of the first fixing sleeve 1, the second fixing sleeve 2, the third fixing sleeve 3 and the combined sleeve 4, to ensure that the sleeve can be fitted onto the cylindrical rod 12; the top end of the cylindrical rod 12 is sealed, the interior is hollow, and an elongated oval hole 12-1 communicating with the interior is opened on the upper side; the bottom end of the cylindrical rod 12 is open, passes through the vertical support plate 9 and is fixed thereto, and is connected to a negative pressure chip suction device.
[0016] The vertical distance H from the upper edge of the cylindrical rod 12 to the surface of the base plate 7 is the same as the distance L from the upper edge of the inner wall of the first fixed sleeve 1 to the horizontal port of the second fixed sleeve 2, that is, H=L.
[0017] The horizontal distance D between the outer sides of the two sleeve positioning rods 11 is less than or equal to the length C of the hypotenuse of the isosceles right triangle formed by the inner sides of the first fixed sleeve 1 and the second fixed sleeve 2, that is, D≤C.
[0018] Preferably, a locking mechanism is fixed on the surface of the base plate 7, including three positioning blocks 13 and an adjustable locking head 14. The tops of the three positioning blocks 13 are disc-shaped with elastic support, and their diameter is larger than the inner diameter of the first fixed sleeve 1, the second fixed sleeve 2, or the third fixed sleeve 3, so as to stably support and press the three sleeves. The adjustable locking head 14 is provided with a threaded top rod and a rotating handle. First, the three fixed sleeves are aligned with the disc-shaped tops of the three positioning blocks 13 respectively. Then, the rotating handle of the adjustable locking head 14 is rotated, and its top rod is used to push the two pin seats at the lower end of the semi-circular arc wall of the third fixed sleeve 3 upward, and combine them with the two pin seats on the lower outer side of the second fixed sleeve 2. Then, the connecting pin is inserted to assemble the first fixed sleeve 1, the second fixed sleeve 2, and the third fixed sleeve 3 into a whole and form a combined sleeve 4.
[0019] When drilling the threaded holes 6 on the walls of the first fixed sleeve 1, the second fixed sleeve 2, or the third fixed sleeve 3, the sleeve to be processed is horizontally fitted onto the cylindrical rod 12 from the port, with the end of the cylindrical rod 12 abutting against the stop block at the bottom of the corresponding sleeve, so that the drilling position is aligned with the drill bit 8 for drilling; when drilling the threaded holes 6 at a 45° inclination angle on the inner side of the perpendicular intersection of the first fixed sleeve 1 and the second fixed sleeve 2; when drilling the semi-circular arc wall at the end of the third fixed sleeve 3, simply fit the combined sleeve 4 onto the cylindrical rod 12, aligning the drilling position with the drill bit 8 for drilling.
[0020] Preferably, a cylinder 15 is vertically arranged on the surface of the base plate 7, and its position coincides with the combined sleeve 4 formed by the assembly of three fixed sleeves.
[0021] The corner support connector and drilling assembly fixture of this utility model have many beneficial effects. First, the corner support connector, through a specific structural design, can achieve a stable connection of multiple pipes in a three-dimensional coordinate structure support. The combination of the first fixing sleeve 1, the second fixing sleeve 2, and the third fixing sleeve 3 can connect pipes in different directions respectively. The setting of the combined sleeve 4 further expands the connection range, enabling it to connect horizontal pipes perpendicular to the aforementioned three pipes, greatly improving the compatibility and versatility for pipes with different layouts. The multiple settings of the pipe locking mechanism, including the threaded holes 6 and locking screws on the pipe walls and junctions of each fixing sleeve, can effectively lock and fix the pipes, ensuring the stability of the support structure under different loads and preventing the pipes from loosening. At the same time, the connection method of each fixing sleeve is simple, and assembly can be completed by connecting pins and sets, achieving quick and easy installation.
[0022] The drilling assembly fixture, through the coordinated action of components such as the base plate 7 and the drilling support mechanism, can accurately position different parts of the corner support connector. The adjustable height of the sleeve positioning rod 11 and the adaptable design of the cylindrical rod 12 and the fixed sleeve ensure the positioning accuracy during drilling, which helps to improve the drilling quality. The cylindrical rod 12 is hollow inside and connected to a negative pressure chip suction device, which can promptly remove the chips generated during drilling and reduce interference with the processing. In addition, the fixture can adapt to the drilling needs of different positions such as the first fixed sleeve 1, the second fixed sleeve 2, the third fixed sleeve 3 and their perpendicular intersections, which is convenient to operate, improves the efficiency of drilling, and reduces production costs.
[0023] Overall, the corner support connector of this utility model is firmly connected, easy to install, and highly versatile. Its matching drilling assembly fixture is accurate in positioning and highly efficient. The combination of the two can effectively solve many problems in the connection of brackets and drilling in the prior art. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of the first fixed sleeve and the second fixed sleeve.
[0025] Figure 2 This is a schematic diagram of the structure of the third fixed sleeve.
[0026] Figure 3 This is a schematic diagram of the corner support connector from a southwest perspective.
[0027] Figure 4 This is a schematic diagram from the southeast view of the corner support connector.
[0028] Figure 5 This is a schematic diagram of the drilling and assembly fixture for the corner support connector.
[0029] Figure 6 This is a schematic diagram of the drilling assembly fixture machining the threaded hole on the first fixed sleeve.
[0030] Figure 7 This is a schematic diagram of the drilling assembly fixture machining the threaded hole on the second fixed sleeve.
[0031] Figure 8 This is a schematic diagram of the drilling assembly fixture machining a 45° inclined threaded hole.
[0032] Figure 9 This is a schematic diagram of the drilling assembly fixture assembling the corner support connector.
[0033] Figure 10 This is a schematic diagram showing the machining of the threaded hole on the semi-circular arc wall at the end of the third fixed sleeve by the drilling assembly fixture.
[0034] Figure 11 This is a dimensional schematic diagram A of the drilling assembly fixture and the corner support connector.
[0035] Figure 12 This is a dimensional schematic diagram B of the drilling assembly fixture and the corner support connector.
[0036] In the figure: First fixed sleeve 1, Second fixed sleeve 2, Third fixed sleeve 3, Combined sleeve 4, Combined pin seat 5, Threaded hole 6, Base plate 7, Drill bit 8, Vertical support plate 9, Mounting plate 10, Sleeve positioning rod 11, Cylindrical rod 12, Oblong hole 12-1, Positioning block 13, Locking head 14, Cylinder 15. Detailed Implementation
[0037] The present invention will be further described in detail below with reference to specific embodiments.
[0038] refer to Figure 1-4, the corner support connecting piece is used for the fixation and connection of a three-dimensional coordinate structure support, and its structure includes a first fixed sleeve 1, a second fixed sleeve 2, a third fixed sleeve 3 and a combined sleeve 4.
[0039] Casing structure and connection relationship:
[0040] The first fixed sleeve 1 and the second fixed sleeve 2 are of the same length, and their lower ends are perpendicularly connected to form two right-angled sides of an isosceles right triangle, and are integrated by the semi-circular arc walls at the lower ends; the vertical projection areas of their sleeve holes on the semi-circular arc walls are partially hollowed out for the penetration and positioning of pipe fittings; two of the four-piece combined pin seats 5 are provided on the outer sides of the lower ends of the first fixed sleeve 1 and the second fixed sleeve 2 respectively, and the other two are provided at both ends of the semi-circular arc wall at the bottom of the third fixed sleeve 3; the pin holes on the four combined pin seats 5 are concentric. After inserting the connecting pins, the three are combined into a "丄" shape to connect a vertical pipe fitting and two horizontal pipe fittings in the same plane respectively; the semi-circular arc walls at the ends of the first fixed sleeve 1 and the second fixed sleeve 2 and the semi-circular arc walls at the ends of the third fixed sleeve 3 cooperate with two groups of four-piece combined pin seats 5 to form a combined sleeve 4 for connecting the horizontal pipe fitting perpendicular to the aforementioned three pipe fittings.
[0041] Pipe fitting locking mechanism:
[0042] Threaded holes 6 are provided on the pipe walls of the first fixed sleeve 1, the second fixed sleeve 2 and the third fixed sleeve 3, and locking screws are installed inside for fixing the pipe fittings sleeved in the sleeves; inside the intersection part where the first fixed sleeve 1 and the second fixed sleeve 2 are perpendicularly intersected, a threaded hole 6 inclined at 45° and a matching locking screw are provided to enhance the connection stability at the corner. Threaded holes 6 and locking screws can also be provided on the semi-circular arc wall at the end of the third fixed sleeve 3 to further improve the pipe fitting fixing effect.
[0043] Reference Figure 5-12 , the drilling and assembling fixture includes a bottom plate 7 and a drilling support mechanism, and a drill bit 8 is installed above the drilling support mechanism. The specific structure and operation are as follows:
[0044] Vertical support plates 9 are provided at the edges of the bottom plate 7, and an upper mounting plate 10 is fixedly installed at their upper ends; two mounting holes are symmetrically opened on the mounting plate 10 based on the midline, and height-adjustable sleeve positioning rods 11 are installed in the holes for adapting to the positioning requirements of sleeves of different sizes; a cylindrical rod 12 is horizontally provided below the sleeve positioning rod 11, and its diameter is smaller than the inner diameters of the first fixed sleeve 1, the second fixed sleeve 2, the third fixed sleeve 3 and the combined sleeve 4 to ensure that the sleeves can be sleeved on the cylindrical rod 12; the top of the cylindrical rod 12 is sealed and hollow inside, and an oblong hole 12-1 communicating with the inside is opened on the upper side, and the bottom end opens and passes through the vertical support plate 9 and is fixed, and is connected to a negative pressure chip suction device to timely suck away the chips generated by drilling.
[0045] The vertical distance H from the upper edge of the cylindrical rod 12 to the surface of the base plate 7 is equal to the distance L from the upper edge of the inner wall of the first fixed sleeve 1 to the horizontal port of the second fixed sleeve 2, ensuring the positional accuracy after the sleeve is installed. The horizontal distance D between the outer sides of the two sleeve positioning rods 11 is less than the hypotenuse C of the isosceles right triangle formed by the first fixed sleeve 1 and the second fixed sleeve 2, to prevent the positioning rods from obstructing the installation of the sleeve.
[0046] Locking and assembly operation: The base plate 7 is fixed with a locking mechanism, including three positioning blocks 13 and an adjustable locking head 14; the top of the positioning block 13 is a disc-shaped elastic support with a diameter larger than the inner diameter of each sleeve, used to stabilize and press the sleeve; during assembly, the three fixed sleeves are aligned with the disc-shaped tops of the three positioning blocks 13 respectively, and the rotating handle of the locking head 14 is rotated. The threaded top rod pushes the two pin seats at the lower end of the semi-circular arc wall of the third fixed sleeve 3, so that it is combined with the two pin seats on the outer side of the lower end of the second fixed sleeve 2. After inserting the connecting pin, the overall assembly is completed and a combined sleeve 4 is formed.
[0047] Drilling operation procedure: When drilling the threaded hole 6 on the wall of the first fixed sleeve 1, the second fixed sleeve 2, or the third fixed sleeve 3, horizontally fit the sleeve to be processed onto the cylindrical rod 12 from the end, so that the bottom of the sleeve abuts against the corresponding stop block. Adjust the position so that the drilling point is aligned with the drill bit 8, and start the drill to process. When drilling the 45° inclined threaded hole 6 on the inner side of the perpendicular intersection of the first fixed sleeve 1 and the second fixed sleeve 2, fix the sleeve in the above manner, and adjust the drill bit angle to 45° for processing. When drilling the threaded hole 6 on the semi-circular arc wall at the end of the third fixed sleeve 3, fit the combined sleeve 4 onto the cylindrical rod 12 and align it with the drill bit 8 to process.
[0048] Through the above structure and operation, the corner support connector can achieve a stable connection and rapid installation of the three-dimensional bracket. Its matching drilling assembly fixture can accurately position each part and efficiently complete the drilling process. The combination of the two effectively improves the stability of the bracket connection and the processing efficiency.
Claims
1. A corner support connector for fixing and connecting a three-dimensional coordinate structure support, characterized in that, Comprising: A first fixed sleeve (1), a second fixed sleeve (2), a third fixed sleeve (3) and a combined sleeve (4); the first fixed sleeve (1) and the second fixed sleeve (2) form a fixed whole, the third fixed sleeve (3) is connected to the first fixed sleeve (1) and the second fixed sleeve (2) respectively through connecting pins, and the combined sleeve (4) is formed by combining the ends of the first three fixed sleeves; The first fixed sleeve (1) and the second fixed sleeve (2) have the same length, the lower ends of the two are perpendicularly connected to each other, the inner sides are respectively used as two right-angled sides of an isosceles right triangle, and are connected into a whole through a semi-circular arc wall arranged at the lower ends of the two. The sleeve holes on the first fixed sleeve (1) and the second fixed sleeve (2) are partially hollowed out in the vertical projection area on the semi-circular arc wall; On the outer sides of the lower ends of the first fixed sleeve (1) and the second fixed sleeve (2), two of the four-piece combined pin seats (5) are arranged at intervals, and the other two matching ones are fixed at both ends of the semi-circular arc wall at the bottom of the third fixed sleeve (3). Concentric pin holes are opened on the four-piece combined pin seats (5). After inserting the connecting pins, the first fixed sleeve (1), the second fixed sleeve (2) and the third fixed sleeve (3) are jointly combined into a "丄"-shaped support connecting piece. The semi-circular arc walls arranged at the ends of the first fixed sleeve (1) and the second fixed sleeve (2), and the semi-circular arc wall arranged at the end of the third fixed sleeve (3), together with the two four-piece combined pin seats (5), jointly form the combined sleeve (4).
2. The corner support connector according to claim 1, characterized in that, A pipe fitting locking mechanism is further provided; it includes threaded holes (6) respectively arranged on the pipe walls of the first fixed sleeve (1), the second fixed sleeve (2), and the third fixed sleeve (3) and locking screws installed in the threaded holes (6); in addition, inside the intersection part where the first fixed sleeve (1) and the second fixed sleeve (2) intersect perpendicularly, a threaded hole (6) inclined at 45° and a matching locking screw are provided.
3. A corner support connector according to claim 1 or 2, characterized in that, Threaded holes (6) and matching locking screws are arranged on the semi-circular arc wall at the end of the third fixed sleeve (3).
4. A drilling assembly fixture for use with the corner support connector as described in any one of claims 1-3, characterized in that, Comprising a bottom plate (7) and a drilling support mechanism, with a drill bit (8) installed above the two; a vertical support plate (9) is arranged at the edge of the bottom plate (7), the upper edge of the vertical support plate (9) is fixed with a mounting plate (10), two mounting holes are symmetrically opened on the mounting plate (10) based on the center line, and height-adjustable sleeve positioning rods (11) are respectively installed in the two mounting holes; below the two sleeve positioning rods (11), a cylindrical rod (12) is horizontally arranged, and its diameter is smaller than the inner diameters of the first fixed sleeve (1), the second fixed sleeve (2), the third fixed sleeve (3) and the combined sleeve (4) to ensure that the sleeve can be sleeved on the cylindrical rod (12); the top of the cylindrical rod (12) is sealed, the inside is hollow, and an oblong hole (12-1) communicating with the inside is opened on the upper side; the bottom of the cylindrical rod (12) is open, passes through the vertical support plate (9) and is fixed to it, and is connected to a negative pressure chip suction device.
5. The drilling assembly fixture according to claim 4, characterized in that, The vertical distance H from the upper edge of the cylindrical rod (12) to the surface of the base plate (7) is the same as the distance L from the upper edge of the inner wall of the first fixed sleeve (1) to the horizontal port of the second fixed sleeve (2), i.e., H=L.
6. The drilling assembly fixture according to claim 4 or 5, characterized in that, The horizontal distance D between the outer sides of the two sleeve positioning rods (11) is less than the length C of the hypotenuse of the isosceles right triangle formed by the inner sides of the first fixed sleeve (1) and the second fixed sleeve (2), i.e., D≤C.
7. The drilling assembly fixture according to claim 4, characterized in that, A locking mechanism is fixed on the surface of the base plate (7), including three positioning blocks (13) and an adjustable locking head (14). The top of the three positioning blocks (13) is a disc-shaped structure with elastic support, and its diameter is larger than the inner diameter of the first fixed sleeve (1), the second fixed sleeve (2) or the third fixed sleeve (3), so as to stably support and press the three sleeves. The adjustable locking head (14) is provided with a threaded top rod and a rotating handle.
8. The drilling assembly fixture according to claim 4 or 7, characterized in that, A cylinder (15) is also vertically set on the surface of the base plate (7), and its position coincides with the combined sleeve (4) formed by the assembly of three fixed sleeves.