Detachable reinforced vertical pole

Abstract

The application relates to a detachable reinforcing vertical rod, which comprises a reinforcing rod and a sleeve, the reinforcing rod is provided with an assembly hole at the end and a lock pin is arranged in the side wall of the reinforcing rod, meanwhile, the lock pin is sleeved with a reset spring, the sleeve is provided with a limiting rod, the limiting rod is provided with a locking protrusion, the limiting rod is sleeved with an unlocking slider, the side surface of the limiting rod and the bottom of the locking protrusion form an annular stepped groove, the locking protrusion is provided with a spherical surface and the bottom is provided with a groove, the surface of the unlocking slider is an inclined guide surface and the end of the lock pin is provided with a guide surface, when the sleeve is inserted into the assembly hole, the lock pin is clamped with the annular stepped groove through the spherical surface of the locking protrusion and the pushing of the reset spring; when the sleeve and the reinforcing rod are detached, the unlocking slider is moved into the groove of the locking protrusion, and the lock pin is separated from the annular stepped groove along the inclined guide surface of the unlocking slider and the spherical surface of the locking protrusion. The application has the effects of convenient and quick detaching and assembling, no need of detaching and assembling tools, and the effect of simplifying the detaching and assembling process through the clamping type connection.

Description

Technical Field

[0001] This application relates to the technical field of temporary facilities for bridge construction, and in particular to a detachable reinforcing vertical pole. Background Technology

[0002] Bailey bridge trusses are frequently used in building construction or temporary bridge construction sites. To enhance the stability and load-bearing capacity of the entire Bailey bridge truss, additional reinforcing vertical members are often installed at critical locations. These reinforcing vertical members consist of reinforcing bars and sleeves, and a reliable connection is usually required between the reinforcing bars and sleeves to ensure the supporting force of the reinforcing vertical members.

[0003] Currently, there are two main ways to connect reinforcing rods and sleeves on the market: The first is welding, which, while ensuring a strong connection, is difficult to disassemble because the reinforcing rod and sleeve become a single unit after welding. Disassembly requires welding equipment and skilled welders, which is dangerous and costly when operating at heights or in confined spaces. Furthermore, the disassembly process is destructive, requiring cutting the welded joints of the reinforcing rod and sleeve. This connection method makes the disassembly process cumbersome, time-consuming, labor-intensive, and wasteful of materials. The second connection method is bolting, which uses bolts and quick-release clips to secure the reinforcing rod and sleeve. While this allows for disassembly and assembly, the process is also cumbersome, requiring specialized tools to tighten each bolt individually, resulting in low efficiency for high-altitude operations.

[0004] Regarding the aforementioned technologies, the inventors believe that the existing technologies lack an efficient locking mechanism, and therefore urgently need a new type of connection mechanism to achieve convenient and quick assembly and disassembly. Summary of the Invention

[0005] To address the problems of cumbersome assembly and disassembly procedures for reinforcing rods and sleeves in existing reinforcing rod technologies, which require specialized tools and are inefficient, this application provides a detachable reinforcing rod.

[0006] Firstly, this application provides a detachable reinforcing vertical bar, which adopts the following technical solution: A detachable reinforcing vertical rod, comprising a reinforcing rod and a sleeve, characterized in that, The end of the reinforcing rod is provided with an assembly hole, and the sleeve is provided with a limiting rod that is adapted to the assembly hole; The end of the limiting rod has a locking protrusion, and the bottom of the locking protrusion forms a stepped groove with the side of the limiting rod. The side wall of the reinforcing rod has a pin hole along a direction perpendicular to its own axis and corresponding to the position of the assembly hole, and the locking pin passes through the pin hole.

[0007] By adopting the above technical solution, when the sleeve and reinforcing rod are fixedly installed, after the worker inserts the sleeve into the assembly hole, the sleeve can be locked into the stepped groove by the locking pin, thereby realizing the locking operation of the sleeve and reinforcing rod. When disassembling the reinforcing rod and sleeve, workers can first pull out the locking pin to disengage it from the stepped groove, and then remove the sleeve from the assembly hole, thus achieving the disassembly of the reinforcing rod and sleeve. The entire process does not require specialized tools or welding fixation, achieving a convenient disassembly and assembly effect.

[0008] Optionally, the stepped groove is annular.

[0009] By adopting the above technical solution, since the stepped groove is annular, the locking pin can be inserted into the stepped groove in any direction around the circumference, which facilitates the fixing of the reinforcing rod and the sleeve and improves the structural adaptability.

[0010] Optionally, the surface of the locking protrusion is a guide surface.

[0011] By adopting the above technical solution, during the process of inserting the sleeve into the assembly hole, the locking pin can be more smoothly inserted into the stepped groove by utilizing the guiding effect of the guiding surface of the locking protrusion, which facilitates the assembly operation.

[0012] Optionally, the guide surface is spherical.

[0013] By adopting the above technical solution, the spherical surface of the locking protrusion allows the end of the locking pin to smoothly engage with the stepped groove along the spherical surface when the sleeve enters the mounting hole of the reinforcing rod, improving the smoothness of installation. At the same time, the force is more evenly distributed when the locking pin moves on the spherical surface, reducing wear between the locking pin and the locking protrusion and extending the service life of the component.

[0014] Optionally, the locking pin includes a pin head and a pin rod connected to the pin head. A return spring is sleeved on the pin rod. One end of the return spring abuts against the pin head of the locking pin, and the other end abuts against the bottom of the pin hole. A limit block is fixed to the outside of the reinforcing rod at the end of the pin rod away from the pin head.

[0015] By adopting the above technical solution, during assembly, after the sleeve enters the assembly hole, the locking pin will retract due to the spherical pressure of the locking protrusion until it reaches the bottom of the spherical surface of the locking protrusion. At this point, the return spring can push the locking pin to automatically reset, and then the locking pin can quickly engage in the stepped groove. This eliminates the need for manual reset of the locking pin, improving operational convenience and assembly / disassembly efficiency, and ensuring that the locking pin is always in an effectively locking state.

[0016] Optionally, the limiting rod is fitted with an unlocking slider, the middle part of which is larger than the diameter of the top and bottom; the top and middle parts, and the bottom and middle parts of the unlocking slider are continuous inclined guide surfaces, and the bottom of the locking protrusion has a groove, the unlocking slider can be embedded in the groove, and the edge of the maximum diameter of the middle part of the unlocking slider coincides with the edge of the locking protrusion.

[0017] By adopting the above technical solution, during unlocking and disassembly, the sleeve first moves into the assembly hole, causing the unlocking slider to move to the end of the locking pin. The inclined guide surface on the unlocking slider causes the locking pin to retract. Then, the locking pin moves along the inclined guide surface to the bottom of the unlocking slider. At this time, the sleeve moves towards the outlet of the assembly hole, and the locking pin, which is engaged with the bottom of the unlocking slider, drives the unlocking slider to move into the assembly hole. Since the bottom of the locking protrusion has a groove, the unlocking slider is driven into the groove by the locking pin. After the edge of the largest diameter of the unlocking slider in the middle coincides with the edge of the locking protrusion, the locking pin can continue to smoothly disengage from the stepped groove along the inclined guide surface and the spherical surface, thereby realizing the unlocking operation.

[0018] Optionally, it also includes a reference rod, and there are two of each of the reinforcing rod and the sleeve. The two sleeves are slidably connected to the reference rod, and the two sleeves are connected to each other through an adjustment mechanism.

[0019] By adopting the above technical solution, the distance between the two sleeves can be adjusted by the adjustment mechanism, and the sleeves can be moved undisturbed and rotation of the sleeves can be prevented by the sliding connection with the reference rod.

[0020] Optionally, a fixed rod is connected to the sleeve, a T-shaped slider is provided on the fixed rod, a T-shaped groove is provided on the reference rod, and the T-shaped slider is placed in the T-shaped groove and can move along the T-shaped groove.

[0021] By adopting the above technical solution, and using a fixed rod to connect the sleeve, the sleeve can be prevented from rotating when the operator uses the adjusting mechanism to adjust the sleeve spacing. The fixed rod will restrict the rotation of the sleeve, so that the sleeve can only move along the T-shaped groove of the reference rod through the T-shaped slider on the fixed rod.

[0022] Optionally, the adjusting mechanism includes a handwheel, a lead screw, and a housing. The housing is fixed to the reference rod, the handwheel is located in the housing, the lead screw passes through the housing along the length of the reference rod, and the lead screw is fixed to the axis of the handwheel. The side of the housing has an operating port for the handwheel to be exposed, and the two ends of the lead screw are respectively threaded to the two sleeves.

[0023] By adopting the above technical solution, operators can adjust the height of the reinforcing vertical rod through the control port. The rotation of the handwheel drives the lead screw to rotate synchronously. Since the handwheel is located at the intersection of two threads in different directions on the lead screw, the two sleeves will move synchronously in opposite directions along the thread direction of the lead screw after the lead screw rotates, thus adjusting the distance between them. This achieves the adjustment of the height of the reinforcing vertical rod, making the detachable reinforcing vertical rod suitable for different types of Bailey truss reinforcement needs, improving applicability and flexibility.

[0024] Optionally, the handwheel is provided with a gripping part on its outer periphery, the gripping part extends out of the operating port, the box body is provided with a pawl corresponding to the gripping part, and the pawl is provided with a second return spring, the second return spring pushes or pulls the pawl to engage with the gripping part.

[0025] By adopting the above technical solution, the gripping part on the outer periphery of the handwheel facilitates the operator's rotation of the handwheel. When the handwheel rotates, it pushes the pawls on the housing away from itself, and the pawls are pushed or pulled by the return spring, continuously engaging with the handwheel gripping part. In this way, after the height adjustment is completed, even if the upper and lower ends of the reinforcing rod are subjected to pressure, the lead screw will not rotate in the opposite direction, thus preventing the reinforcing rod from shrinking and affecting the final support effect.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting an assembly hole at the end of the reinforcing rod and a matching limiting rod on the sleeve, a stepped groove is formed by the side of the limiting rod and the locking protrusion. Combined with the locking pin on the side wall of the reinforcing rod, the locking pin can directly engage with the stepped groove to lock the sleeve during installation. During disassembly, the operator can simply pull out the locking pin to remove the sleeve from the assembly hole. The entire process requires no specialized tools or welding, simplifying the assembly and disassembly process and improving operational efficiency. 2. The sleeves, through the adjustment mechanism, engage with the T-shaped groove on the reference rod and the T-shaped slider on the fixed rod. The operator can easily adjust the distance between the two sleeves, thereby adjusting the height of the reinforcing vertical rod. This allows the reinforcing vertical rod to adapt to the reinforcement requirements of different types of Bailey trusses, enhancing the flexibility of the structure. At the same time, the gripping part on the outer periphery of the handwheel engages with the pawl with a return spring on the housing, preventing the lead screw from rotating in the opposite direction after adjustment. This ensures the stability of the reinforcing vertical rod support and avoids the reinforcing rod shrinking due to stress, which would affect the support effect. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a Bailey truss structure; Figure 2 This is a schematic diagram of Example 1 placed in a Bailey truss structure; Figure 3 This is a schematic diagram of the reinforcing vertical rod in Example 1; Figure 4This is an exploded view of the reinforcing vertical rod in Example 1; Figure 5 This is a side view of the reinforcing vertical rod of Embodiment 1; Figure 6 This is a cross-sectional view of AA in Example 1; Figure 7 This is a partially enlarged schematic diagram of point B in Example 1; Figure 8 This is a cross-sectional view of the adjustment mechanism of CC in Example 1.

[0028] Explanation of reference numerals in the attached drawings: 1. Reinforcing rod; 11. Assembly hole; 12. Pin hole; 13. Locking pin; 131. Pin head; 132. Pin rod; 14. Return spring one; 15. Limiting block; 2. Sleeve; 21. Limiting rod; 22. Locking protrusion; 23. Unlocking slider; 24. Lead screw hole; 3. Lead screw; 4. Box body; 41. Operating port; 42. Fixing plate; 43. Shaft pin; 44. Claw; 45. Return spring two; 5. Reference rod; 51. Fixing rod; 52. T-shaped slide groove; 53. T-shaped slider; 6. Handwheel; 61. Conical pin; 62. Grip part. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0030] Example 1 This application discloses a detachable reinforcing vertical rod.

[0031] Reference Figure 1-2 One specific application of this embodiment 1 is as follows: In use, the reinforcing vertical rod is placed into the slot opened in the support column of the Bailey truss. The slot matches the maximum width of the reinforcing vertical rod. After the reinforcing vertical rod is placed, the sleeve 2 is moved by the adjustment mechanism to make the ends of the two reinforcing rods 1 abut against the adjacent upper chord and lower chord, thereby fixing the position of the reinforcing vertical rod, improving the bending and bearing capacity of the support column, and thus forming a reinforcing support for the upper chord and lower chord, improving the support stability and practicality of the Bailey truss structure.

[0032] Reference Figure 3-8 The reinforcing vertical rod includes a reinforcing rod 1 and a sleeve 2. There are two reinforcing rods 1 and two sleeves 2, one on top of the other. The two sleeves 2 are respectively connected to two fixed rods 51. The fixed rods 51 are connected to the reference rod 5. The sleeves 2 are connected to each other through an adjustment mechanism.

[0033] The end of the reinforcing rod 1 is provided with an assembly hole 11, and the sleeve 2 is provided with a limiting rod 21. The end of the limiting rod 21 is provided with a locking protrusion 22. The diameter of the limiting rod 21 is smaller than the diameter of the assembly hole 11. The locking protrusion 22 is a hemisphere, the guide surface of the surface is a spherical surface, and the maximum diameter of its bottom is equal to the diameter of the assembly hole 11. The limiting rod 21 matches the assembly hole 11. Two pin holes 12 are provided on the side wall of the reinforcing rod 1 along its radial direction and corresponding to the position of the mounting hole 11. The locking pin 13 is inserted into the reinforcing rod 1 through the pin holes 12. The locking pin 13 includes a pin head 131 and a pin rod 132 connected to the pin head 131. A return spring 14 is sleeved on the pin rod 132. One end of the return spring 14 abuts against the pin head 131, and the other end abuts against the bottom of the pin hole 12. The pin hole 12 is adapted to the size and shape of the locking pin 13 with the return spring 14 sleeved on it. The end of the pin rod 132 away from the pin head 131 extends out of the pin hole 12 from the outside of the reinforcing rod 1 and is fixed with a limit block 15. The limit block 15 is snap-fitted to the pin rod 132 to prevent the locking pin 13 from falling off. The pin head 131 extends into the mounting hole 11 and the pin head 131 is provided with an inclined guide surface. The inclined guide surface is adapted to the spherical surface of the locking protrusion 22.

[0034] An unlocking slider 23 is fitted onto the limiting rod 21. The unlocking slider 23 is formed by connecting the bottoms of two truncated cones. The side diameter of the unlocking slider 23 is larger than the diameters at both ends, and the maximum side diameter is equal to the diameter of the mounting hole 11. The side of the unlocking slider 23 forms a continuous inclined guide surface, which is adapted to the inclined guide surface of the pin head 131.

[0035] During the assembly operation, the sleeve 2 extends into the assembly hole 11. The spherical surface of the locking protrusion 22 provides guidance and applies pressure to retract the locking pin 13 and the return spring 14. The return spring 14 abuts against the bottom of the pin hole 12 away from the pin head 131. When the end of the pin head 131 moves to the bottom of the spherical surface, the return spring 14 resets the locking pin 13. The locking pin 13 quickly engages in the annular trapezoidal groove formed by the bottom of the locking protrusion 22 and the side of the limiting rod 21, thus completing the assembly. During disassembly, the sleeve 2 first moves towards the interior of the assembly hole 11, causing the locking pin 13 to move away from the annular stepped groove and contact the inclined guide surface of the unlocking slider 23. As the sleeve 2 moves the unlocking slider 23, the locking pin 13 can be engaged at the bottom of the unlocking slider 23 along the inclined guide surface. Then, the sleeve 2 moves towards the opening of the assembly hole 11, and the locking pin 13 will move the unlocking slider 23 axially along the limit rod 21 to the locking protrusion 22. Since the bottom of the locking protrusion 22 has a groove that matches the shape of the upper half of the unlocking slider 23, the unlocking slider 23 is moved into the groove by the locking pin 13. When the edge of the largest diameter in the middle of the unlocking slider 23 coincides with the edge of the locking protrusion 22, the locking pin 13 can continue to move along the inclined guide surface of the unlocking slider 23 and the spherical surface of the locking protrusion 22, thus successfully disengaging from the annular stepped groove to achieve the unlocking operation.

[0036] Both sleeves 2 are welded to the fixed rod 51. One end of the fixed rod 51 is provided with a T-shaped slider 53. The reference rod 5 is provided with a T-shaped groove 52 corresponding to the T-shaped slider 53. The T-shaped slider 53 is placed in the T-shaped groove 52. When the sleeve 2 moves, the T-shaped slider 53 moves along the T-shaped groove 52. In order to make the fixed rod 51 and the T-shaped slider 53 more secure, the fixed rod 51 and the T-shaped slider 53 are both welded together.

[0037] The adjustment mechanism between the sleeves 2 includes a lead screw 3, a housing 4, and a handwheel 6. Both sleeves 2 have lead screw 3 holes 24 inside. The lead screw 3 has threads in different directions from the middle to both ends. The two lead screw 3 holes 24 are respectively provided with threads that match the two types of threads on the lead screw 3. The lead screw 3 is threadedly connected to both sleeves 2.

[0038] The housing 44 is welded to the reference rod 5. The handwheel 6 is placed inside the housing 4. The handwheel 6 has a grip 62 on its outer periphery, which is ratchet-shaped. The side of the housing 4 has an operating opening 41 for the handwheel 6 to be exposed. Part of the grip 62 extends out of the operating opening 41. There is a gap between the edge of the grip 62 and the inner edge of the housing 4, so that the handwheel 6 does not interfere with the housing 4 when it is operated. The housing 4 has a pawl 44 that matches the grip 62. The pawl 44 is rotatably connected to the inner wall of the housing 4 through a shaft pin 43. The fixed end of the pawl 44 has a second return spring 45. The other end of the second return spring 45 is welded and fixed to a fixing plate 42 on the inner wall of the housing 4. The second return spring 45 helps to push the pawl 44 to engage in the grip 62, thereby fixing the handwheel 6 and preventing the lead screw 3 from rotating.

[0039] The lead screw 3 passes through the housing 4, and the handwheel 6 is fitted onto the middle of the lead screw 3. This middle section is the junction of the threads on the lead screw 3 in different directions. The lead screw 3 and the handwheel 6 are both fixedly connected by tapered pins 61. There are two tapered pins 61, both of which pass through the handwheel 6 and the lead screw 3. The tapered pins 61 can restrict the axial and radial movement of the handwheel 6 from the lead screw 3, thus playing a positioning and fixing role. The handwheel 6 rotates in one direction. When the lead screw 3 and the handwheel 6 rotate in the same direction, the threads on the lead screw 3 in different directions will cause the two sleeves 2 to move synchronously in opposite directions.

[0040] When adjusting the height of the reinforcing vertical rod through the adjustment mechanism, the rotation of the handwheel 6 drives the lead screw 3 to rotate synchronously. Since the handwheel 6 is located at the intersection of two threads in different directions on the lead screw 3, the two sleeves 2 will move synchronously in opposite directions after the lead screw 3 rotates, thereby adjusting the distance between the sleeves 2 and thus adjusting the height of the reinforcing vertical rod. When the lead screw 3 rotates, the sleeve 2 would normally rotate as well. However, the fixed rod 51 restricts the rotation of the sleeve 2. The sleeve 2 can only drive the T-shaped slider 53 on the fixed rod 51 to move along the T-shaped groove 52. When the handwheel 6 rotates, it pushes the pawl 44, which in turn compresses the second return spring 45. The pawl 44 is pushed by the rebound of the second return spring 45 and continuously engages with the grip part 62 of the handwheel 6. In this way, after the height adjustment is completed, even if the upper and lower ends of the reinforcing vertical rod are pressed against the upper and lower chords on the Bailey truss, the pawl 44 will be firmly engaged in the grip part 62, thereby fixing the handwheel 6. The lead screw 3 will not rotate in the opposite direction, so the reinforcing rod 1 will not retract and affect the final support effect. This completes the support operation for the Bailey truss.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A detachable reinforcing vertical rod, characterized in that: Includes a reinforcing rod (1) and a sleeve (2); The reinforcing rod (1) has an assembly hole (11) at its end, and the sleeve (2) has a limiting rod (21) that is adapted to the assembly hole (11); The end of the limiting rod (21) has a locking protrusion (22), and the bottom of the locking protrusion (22) forms a stepped groove with the side of the limiting rod (21). The side wall of the reinforcing rod (1) is provided with a pin hole (12) in a direction perpendicular to its own axis and corresponding to the position of the assembly hole (11), and the locking pin (13) passes through the pin hole (12).

2. The detachable reinforcing vertical rod according to claim 1, characterized in that: The stepped groove is annular.

3. A detachable reinforcing vertical rod according to claim 2, characterized in that: The surface of the locking protrusion (22) is a guide surface.

4. A detachable reinforcing vertical rod according to claim 3, characterized in that: The guide surface is spherical.

5. A detachable reinforcing vertical rod according to claim 4, characterized in that: The locking pin (13) includes a pin head (131) and a pin rod (132) connected to the pin head (131). A return spring (14) is sleeved on the pin rod (132). One end of the return spring abuts against the pin head (131) of the locking pin (13), and the other end abuts against the bottom of the pin hole (12). A limit block (15) is fixed to the outside of the reinforcing rod (1) at the end of the pin rod (132) away from the pin head (131).

6. A detachable reinforcing vertical rod according to claim 5, characterized in that: The limiting rod (21) is fitted with an unlocking slider (23), the middle part of which is larger than the diameter of the top and bottom; the top and middle parts, and the bottom and middle parts of the unlocking slider (23) are all continuous inclined guide surfaces, and the bottom of the locking protrusion (22) has a groove, the unlocking slider (23) can be embedded in the groove, and the edge of the maximum diameter of the middle part of the unlocking slider (23) coincides with the edge of the locking protrusion (22).

7. A detachable reinforcing vertical bar according to claim 1, characterized in that: It also includes a reference rod (5), and there are two of each of the reinforcing rod (1) and sleeve (2). The two sleeves (2) are slidably connected to the reference rod (5), and the two sleeves (2) are connected to each other through an adjustment mechanism.

8. A detachable reinforcing vertical rod according to claim 7, characterized in that: A fixed rod (51) is connected to the sleeve (2), and a T-shaped slider (53) is provided on the fixed rod (51). The reference rod (5) is provided with a T-shaped groove (52). The T-shaped slider (53) is placed in the T-shaped groove (52) and can move along the T-shaped groove (52).

9. A detachable reinforcing vertical rod according to claim 7, characterized in that: The adjustment mechanism includes a handwheel (6), a lead screw (3), and a housing (4). The housing (4) is fixed on the reference rod (5). The handwheel (6) is located in the housing (4). The lead screw (3) passes through the housing (4) along the length of the reference rod (5). At the same time, the lead screw (3) is fixed to the axis of the handwheel (6). The side of the housing (4) has an operating port (41) for the handwheel (6) to be exposed. The two ends of the lead screw (3) are threadedly connected to the two sleeves (2).

10. A detachable reinforcing vertical rod according to claim 9, characterized in that: The handwheel (6) has a gripping part (62) on its outer periphery. The gripping part (62) extends out of the operating port (41). The box body (4) has a corresponding claw (44) on the gripping part (62). The claw (44) has a second return spring (45). The second return spring (45) pushes or pulls the claw (44) to engage with the gripping part (62).

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