Hinge rod for variable-diameter reinforcement cage telescopic mechanism

Abstract

The utility model discloses a variable-diameter hinge rod for a reinforcement cage telescopic mechanism. The variable-diameter hinge rod comprises a rod body I, the second rod body is located at the bottom of the first rod body and rotationally connected with one end of the first rod body; the device further comprises a rolling lubrication assembly. The rolling lubricating assembly is composed of a rolling piece and a lubricating piece, the rolling piece is arranged at the top of one end of the second rod body, and the rolling piece is connected with the bottom of one end of the first rod body in a rolling mode. The lubricating piece is located at one end of the first rod body, the lubricating piece is located over the rolling piece, and the lubricating piece penetrates through the first rod body and forms a channel to the position of the rolling piece. According to the utility model, the rolling lubrication assembly is arranged, the original connection mode which is easy to generate high frictional resistance due to plane attachment is ingeniously converted into rolling connection, and the rolling connection replaces sliding between planes through rotation of the rolling body, so that the contact area and the friction coefficient are greatly reduced; and the hinge rod can work more smoothly with low energy consumption in the moving process, so that the friction force is obviously reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of hinge rods, in particular to a hinge rod for a telescopic mechanism of a variable-diameter steel cage. Background Art

[0002] Variable diameter rebar cages are a widely used structural component in construction projects. Their characteristic is that their diameter can be varied to accommodate different project requirements. The basic principle of a variable diameter rebar cage is to bundle rebars of varying diameters together to form a framework with a specific shape, such as a cone, cylinder, polygon, pyramid, trapezoid, or bamboo-shaped column, to suit different project requirements. Their structure typically includes components such as reinforcing bars, guide rods, and floating rods. The bars are positioned around the guide rods and connected to them in a specific manner, forming a deformable and stable structure. Variable diameter rebar cages are widely used as reinforcement materials in infrastructure projects such as subways, highways, and bridges, enhancing their strength and stability. This change in diameter is typically achieved through a telescopic mechanism, with the hinge rod being a key component, enabling the cage diameter to be adjusted as needed.

[0003] During the movement of the hinge rod, the contact between the two hinge rod planes causes excessive frictional damping. This situation usually occurs after the hinge rod system has been running for a long time. Due to wear, dust accumulation or insufficient lubrication, the contact surface of the two hinge rods becomes uneven, which increases the frictional resistance during their relative movement. This increased frictional damping not only leads to a decrease in mechanical efficiency, but may also cause energy loss, temperature increase and accelerated component wear, ultimately affecting the stability and service life of the entire system. Utility Model Content

[0004] The purpose of the utility model is to provide a hinge rod for a telescopic mechanism of a variable diameter steel cage, so as to solve the problem of excessive friction in the movement of the existing hinge rod proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hinge rod for a telescopic mechanism of a variable-diameter steel cage, comprising a rod body one; a rod body two, which is located at the bottom of the rod body one and is rotatably connected to one end of the rod body one; and also comprising a rolling lubrication assembly; the rolling lubrication assembly is composed of a rolling member and a lubricating member, wherein the rolling member is located at the top position of one end of the rod body two, and the rolling member is rollingly connected to the bottom of one end of the rod body one, changing the original planar connection mode to a rolling connection, thereby reducing friction and ensuring normal operation during the telescopic process; the lubricating member is located at one end of the rod body one, and the lubricating member is located directly above the rolling member, and the lubricating member penetrates the rod body one and forms a channel to the rolling member position, so that during lubrication, the lubricating oil is poured from the lubricating member position, and then the lubricating oil is guided to the rolling member position, thereby achieving the purpose of lubrication.

[0006] As a preferred technical solution in the present invention, ball grooves are opened at equal angles on the top of one end of the rod body 2, and the rolling element includes a ball placed in each of the ball grooves. The ball is rollingly connected to the bottom of one end of the rod body 1, and a hole is opened at the bottom of one end of the rod body 1 for the ball to be inserted and rotated, which is not drawn in the figure, so as to accommodate the ball and limit the ball to prevent it from falling off. During rotation, the rod body 1 and the rod body 2 can be connected by the ball rolling to reduce friction.

[0007] As a preferred technical solution in the present invention, the lubricating part includes an annular groove opened at the top of one end of the rod body, and oil filling holes are opened at equal angles inside the annular groove. The oil filling holes are located directly above the ball. During lubrication, the lubricating oil is poured into the annular groove and then poured into the ball through the oil filling hole, thereby achieving lubrication of the ball.

[0008] As a preferred technical solution in the present invention, a sealing ring is also inserted into the annular groove, and the side wall of the sealing ring abuts against the inner wall of the opening of the annular groove, thereby sealing the oil filling hole and ensuring that the annular groove is sealed when lubrication is not required.

[0009] As a preferred technical solution in the present invention, an obtuse angle is formed between the rod body 1 and the rod body 2, and multiple screw holes are opened on the side walls of the obtuse angle area of ​​the rod body 2 and the rod body 1. The internal threads of the screw holes are connected to a hanging rod, and a spring can be hung through the hanging rod to achieve elastic limitation of the angle of the rod body 1 and the rod body 2, and the opening angle of the rod body 1 and the rod body 2 can be adjusted as needed.

[0010] As a preferred technical solution in the present invention, a slot is provided on one side of the hanging rod, and a spring is inserted into the slot (not shown in the figure). The spring can be easily installed through the provision of the slot.

[0011] As a preferred technical solution in the present invention, a connecting stud is passed through the end positions of the rod body one and the rod body two, and a nut is sleeved on the connecting stud. The nut is used to limit the position of the rod body two and the rod body one, but does not cause a tightening effect on the rod body one and the rod body two, thereby ensuring that the normal rotation of the rod body one and the rod body two is not affected.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model is provided with a rolling lubrication component, which cleverly transforms the original connection method that is prone to high friction resistance due to the flat surface contact into a rolling connection. The rolling connection replaces the sliding between the planes by the rotation of the rolling body, greatly reducing the contact area and the friction coefficient, so that the hinge rod can work more smoothly and with low energy consumption during the movement process, thereby significantly reducing friction and improving the operating efficiency and life of the mechanical system.

[0014] This rolling lubrication component not only optimizes the connection method, but also fully considers the maintenance requirements during long-term use. The built-in lubrication structure ensures that the rolling parts can be fully lubricated during continuous operation, effectively preventing wear and overheating caused by dry friction, ensuring that the rolling surface is always maintained in an ideal lubrication state, and extending the service life of the component.

[0015] In addition, the design of the rolling lubrication component also takes into account the needs of easy maintenance and inspection. It is equipped with a removable sealing ring, which makes it convenient for technicians to regularly check the status of the lubricant and replenish or replace it in time, thereby further ensuring the stable operation of the mechanical system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a top view of the utility model;

[0018] Figure 3 This is a schematic diagram of the end structure of the rod body 1 of the present invention;

[0019] Figure 4 This is a schematic diagram of the end structure of the rod body 2 of the present invention;

[0020] Figure 5 It is a structural schematic diagram of the hanging rod of the utility model.

[0021] In the picture:

[0022] 100, rod body 1; 101, rod body 2; 102, screw hole; 103, sealing ring; 104, ring groove; 105, oil filling hole; 106, ball groove; 107, ball;

[0023] 200, hanging rod; 201, card slot;

[0024] 300. Connecting studs. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1

[0027] See also Figures 1 to 5 The utility model provides a technical solution: a hinge rod for a telescopic mechanism of a variable diameter steel cage, comprising

[0028] Rod body 100;

[0029] Rod body 2 101 is located at the bottom of rod body 100 and is rotatably connected to one end of rod body 100. In the telescopic mechanism of the variable diameter steel cage, the material selection of the hinge rod is crucial, as it directly affects the telescopic performance, durability, and overall stability of the steel cage. Taking various factors into consideration, stainless steel and high-strength aluminum alloy are relatively ideal hinge rod materials.

[0030] Also includes

[0031] Rolling lubrication assembly; the rolling lubrication assembly consists of rolling parts and lubricating parts, wherein

[0032] The rolling element is located at the top of one end of the second rod body 101. The rolling element is connected to the bottom of one end of the first rod body 100 in a rolling manner, changing the original planar connection to a rolling connection, thereby reducing friction and ensuring normal operation during the extension and retraction process.

[0033] The lubricating part is located at one end of the rod body 100, and the lubricating part is located directly above the rolling part. The lubricating part passes through the rod body 100 and forms a channel to the position of the rolling part. Therefore, during lubrication, the lubricating oil is poured from the lubricating part position, and then the lubricating oil is guided to the position of the rolling part to achieve the purpose of lubrication.

[0034] In this embodiment, preferably, ball grooves 106 are opened at equal angles at the top of one end of the rod body 2 101, and the rolling element includes a ball 107 placed in each ball groove 106. The ball 107 is rollingly connected to the bottom of one end of the rod body 100. A hole is opened at the bottom of one end of the rod body 100 for the ball 107 to be inserted and rotated, which is not drawn in the figure. This is to accommodate the ball 107 and limit the ball 107 to prevent it from falling off. During rotation, the rod body 100 and the rod body 2 101 can be rollingly connected through the ball 107 to reduce friction.

[0035] In this embodiment, preferably, the lubricating part includes an annular groove 104 opened at the top of one end of the rod body 100, and the interior of the annular groove 104 is provided with oil filling holes 105 at equal angles. The oil filling holes 105 are located directly above the ball 107. During lubrication, the lubricating oil is poured into the annular groove 104 and then poured into the ball 107 through the oil filling hole 105, thereby achieving lubrication of the ball 107.

[0036] In this embodiment, preferably, a sealing ring 103 is also inserted into the annular groove 104. The sealing ring 103 here is a rubber ring. The side wall of the sealing ring 103 abuts against the inner wall of the opening of the annular groove 104, thereby sealing the oil filling hole 105 and ensuring that the annular groove 104 is sealed when lubrication is not required.

[0037] In this embodiment, preferably, an obtuse angle is formed between rod body 100 and rod body 2 101, and a plurality of screw holes 102 are provided on the side walls of the obtuse angle area of ​​rod body 2 101 and rod body 1 100. The internal threads of the screw holes 102 are connected to a hanging rod 200, and a spring can be hung through the hanging rod 200 to achieve elastic limitation of the angle of rod body 100 and rod body 2 101, and the opening angle of rod body 100 and rod body 2 101 can be adjusted as needed.

[0038] In this embodiment, preferably, a slot 201 is provided on one side of the hanging rod 200 , and a spring is inserted into the slot 201 , which is not shown in the figure. The spring can be easily installed by providing the slot 201 .

[0039] In this embodiment, preferably, a connecting stud 300 is passed through the end positions of the rod body 100 and the rod body 2 101, and a nut is sleeved on the connecting stud 300. The nut is used to limit the rod body 2 101 and the rod body 1 100, but does not cause a tightening effect on the rod body 1 100 and the rod body 2 101, thereby ensuring that the normal rotation of the rod body 100 and the rod body 2 101 is not affected.

[0040] Example 2

[0041] The difference from the embodiment 1 is that in this embodiment, preferably, a sealing ring 103 is also inserted into the annular groove 104. The sealing ring 103 here is made of metal. The side wall of the sealing ring 103 is seamlessly fitted or interference-fitted with the inner wall of the opening of the annular groove 104, thereby sealing the oil filling hole 105 and ensuring that the annular groove 104 is sealed when lubrication is not required. In the later disassembly, it can be disassembled by external knocking, which is very convenient to operate. At the same time, in the early processing and production, the difficulty is relatively low and the materials are easy to obtain.

[0042] Although embodiments of the present invention have been shown and described (see the detailed description above for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Hinged rod for telescopic mechanism of variable diameter steel cage, including Rod body 1 (100); Rod body 2 (101) is located at the bottom of rod body 1 (100) and is rotatably connected to one end of rod body 1 (100); Its characteristics are: Also includes Rolling lubrication assembly; the rolling lubrication assembly consists of rolling parts and lubricating parts, wherein The top position of one end of the second rod body (101) of the rolling element is connected to the bottom of one end of the first rod body (100) in a rolling manner; The lubricating component is located at one end of the rod body (100), and is located directly above the rolling component. The lubricating component passes through the rod body (100) and forms a channel to the position of the rolling component.

2. The hinge rod for the telescopic mechanism of a variable diameter steel cage according to claim 1, characterized in that: A ball groove (106) is provided at an equal angle on the top of one end of the rod body (101), and the rolling element includes a ball (107) placed in each ball groove (106). The ball (107) is rollingly connected to the bottom of one end of the rod body (100), and a hole is provided on the bottom of one end of the rod body (100) for the ball (107) to be inserted and rotated.

3. The hinge rod for the telescopic mechanism of a variable diameter steel cage according to claim 2, characterized in that: The lubricating part includes an annular groove (104) formed on the top of one end of the rod body (100), and oil injection holes (105) are formed inside the annular groove (104) at equal angles. The oil injection holes (105) are located directly above the ball (107).

4. The hinge rod for the telescopic mechanism of a variable diameter steel cage according to claim 3, characterized in that: A sealing ring (103) is also inserted into the annular groove (104), and the side wall of the sealing ring (103) abuts against the inner wall of the opening of the annular groove (104).

5. The hinge rod for the telescopic mechanism of a variable diameter steel cage according to claim 1, characterized in that: An obtuse angle is formed between the rod body 1 (100) and the rod body 2 (101), and a plurality of screw holes (102) are provided on the side walls of the obtuse angle region of the rod body 2 (101) and the rod body 1 (100), and the internal threads of the screw holes (102) are connected to the hanging rod (200).

6. The hinge rod for the telescopic mechanism of a variable diameter steel cage according to claim 5, characterized in that: A clamping slot (201) is provided on one side of the hanging rod (200), and a spring is clamped in the clamping slot (201).

7. The hinge rod for the telescopic mechanism of a variable diameter steel cage according to claim 1, characterized in that: The end positions of the rod body 1 (100) and the rod body 2 (101) are penetrated by a connecting stud (300), and a nut is sleeved on the connecting stud (300).

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