A device for tightening the screw cap of a bridge machine boom

Abstract

This utility model discloses a tightening device for the nut of a bridge erecting machine's boom, comprising a nut fixing ring, a connecting rod, a tightening connecting ring, a connecting base, a first connecting plate, and a second connecting plate. The nut fixing ring and the tightening connecting ring are arranged parallel to each other, and the connecting rod is positioned between the nut fixing ring and the tightening connecting ring. The second connecting plate is arranged on the outer ring of the nut fixing ring; the first connecting plate is arranged on the outer ring of the tightening connecting ring; one end of the connecting rod is connected to the first connecting plate, and the other end is connected to the second connecting plate; the connecting base is installed in the middle of the inner ring of the tightening connecting ring. This utility model can be powered by an electric screwdriver, changing the inefficient method of manually tightening nuts, improving the efficiency of nut tightening, and reducing the labor intensity of construction workers.

Description

Technical Field

[0001] This utility model relates to the technical field of tightening nuts on the booms of bridge construction machines, and particularly to a tightening device for the boom nuts of bridge construction machines. Background Technology

[0002] A bridge erecting machine is a large-scale engineering machine specifically designed for bridge construction. It is primarily used to precisely erect prefabricated bridge beams onto bridge piers or abutments. Its main features include: high-efficiency erection capabilities, enabling the rapid and stable lifting and placement of beams weighing hundreds of tons, greatly improving construction efficiency; adaptability to various terrain conditions, whether in flat valleys or rugged mountains, it can find suitable work positions to complete the erection task through its own support and walking system; and versatility, making it widely applicable to the construction of various types of bridges, including highway bridges and railway bridges.

[0003] In the structure of a bridge erecting machine, the suspender system is one of the core components, used to bear the weight of the bridge beam and maintain its stability. The suspender nut, as a key component connecting the suspender to the bridge beam, ensures a tight connection and prevents loosening, which is crucial for the safety of bridge construction and use. However, in actual construction, the suspender nuts of bridge erecting machines are large, and there is a lack of specialized tightening tools; currently, they can only be tightened manually. This method is not only inefficient but also makes it difficult to ensure uniform tightening torque, easily leading to weak connections and safety hazards. It also increases the labor intensity of workers and affects the construction progress. Utility Model Content

[0004] The purpose of this invention is to provide a tightening device for the bolt nuts of a bridge erecting machine. This device utilizes an electric screwdriver, eliminating the inefficient method of manual tightening and improving efficiency while reducing the workload of construction workers. The specific technical solution is as follows:

[0005] A tightening device for the nut of a bridge erecting machine boom includes a nut retaining ring, a connecting rod, a tightening connecting ring, a connecting base, a first connecting plate, and a second connecting plate. The nut retaining ring and the tightening connecting ring are arranged parallel to each other, and the connecting rod is disposed between the nut retaining ring and the tightening connecting ring. The second connecting plate is disposed on the outer ring of the nut retaining ring. The first connecting plate is disposed on the outer ring of the tightening connecting ring. One end of the connecting rod is connected to the first connecting plate, and the other end is connected to the second connecting plate. The connecting base is installed in the middle of the inner ring of the tightening connecting ring.

[0006] Preferably, the connecting base includes a connecting groove, a fixing block, and a locking block; a base mounting plate is installed in the middle of the inner ring of the screwing connecting ring, and a connecting hole is opened in the middle of the base mounting plate; a connecting groove is opened at one end of the fixing block, and a locking block is provided at the other end; the fixing block is located on the side away from the nut fixing ring, and the locking block is locked in the connecting groove.

[0007] Preferably, it also includes a threaded fixing hole and a stud; the nut fixing ring has a threaded fixing hole on its ring body, and the stud is connected to the threaded fixing hole.

[0008] Preferably, the connecting rod includes a threaded connection hole, a first straight rod, an inclined rod, and a second straight rod; the first straight rod and the second straight rod are respectively arranged horizontally; one end of the first straight rod is connected to one end of the inclined rod, and the other end is provided with a threaded connection hole and connected to the first connecting plate; one end of the second straight rod is connected to the other end of the inclined rod, and the other end is provided with a threaded connection hole and connected to the second connecting plate.

[0009] Preferably, the first connecting plate and the second connecting plate are arranged in pairs, and one end of the connecting rod is placed between the two first connecting plates or the second connecting plate.

[0010] Preferably, the outer ring of the nut retaining ring is evenly provided with 3 pairs of second connecting plates, and the outer ring of the screwing connecting ring is evenly provided with 3 pairs of first connecting plates.

[0011] Preferably, the diameter of the nut retaining ring is larger than the diameter of the screw-on connecting ring.

[0012] Preferably, the connecting hole is square.

[0013] Preferably, the stud is a single-headed hexagonal stud.

[0014] Compared with existing technologies, this utility model has the following beneficial effects:

[0015] This invention, by incorporating a nut-fixing ring and a tightening connecting ring, utilizes an electric screwdriver to provide power, significantly improving the efficiency of nut tightening by replacing the previous inefficient method of manual tightening. This reduces the labor intensity of construction workers and helps accelerate bridge construction. The nut-fixing ring stably secures the nut on the bridge erecting machine's boom, and, in conjunction with the tightening connecting ring and connecting rod, ensures uniform force distribution and rotation of the nut. This guarantees consistent and reliable tightening, effectively preventing loose nut connections caused by uneven manual tightening torque, and ensuring the safety and stability of bridge erection. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2This is a schematic diagram of the connecting rod of this utility model.

[0019] Figure 3 This is a schematic diagram of the twisting connecting ring of this utility model.

[0020] Figure 4 This is a cross-sectional view of the screw-in connecting ring of this utility model.

[0021] Figure 5 This is a structural schematic diagram of the nut retaining ring of this utility model.

[0022] Figure 6 This is a schematic diagram of the connection between the stud and the threaded fixing hole of this utility model.

[0023] Explanation of key figure labels:

[0024] 1-Nut retaining ring, 2-Connecting rod, 3-Tightening connecting ring, 4-Connecting base, 5-First connecting plate, 6-Second connecting plate, 7-Threaded fixing hole, 8-Connecting hole, 9-Threaded connecting hole, 10-First straight rod, 11-Diagonal rod, 12-Second straight rod, 13-Base mounting plate, 14-Connecting groove, 15-Fixing block, 16-Clamping block, 17-Stud. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0029] Example 1

[0030] As shown in the figure, a tightening device for the nut of a bridge erecting machine boom includes a nut retaining ring 1, a connecting rod 2, a tightening connecting ring 3, a connecting base 4, a first connecting plate 5, and a second connecting plate 6. The nut retaining ring 1 and the tightening connecting ring 3 are arranged parallel to each other, and the connecting rod 2 is positioned between the nut retaining ring 1 and the tightening connecting ring 3. The second connecting plate 6 is arranged on the outer ring of the nut retaining ring 1. The first connecting plate 5 is arranged on the outer ring of the tightening connecting ring 3. One end of the connecting rod 2 is connected to the first connecting plate 5, and the other end is connected to the second connecting plate 6. The connecting base 4 is installed in the middle of the inner ring of the tightening connecting ring 3.

[0031] Next, the working principle of this embodiment will be described in detail to enable those skilled in the art to better understand this utility model: In use, firstly, the nut retaining ring 1 is placed on the outside of the bridge erecting machine rod nut to fix the nut and prevent it from rotating or moving randomly during the tightening process. Next, the connecting base 4 is installed in the middle of the tightening connecting ring 3 for subsequent connection of the output end of the electric screwdriver. Then, the output end of the electric screwdriver is connected to the connecting base 4. After starting the electric screwdriver, the output end of the electric screwdriver rotates, and the generated power is transmitted to the tightening connecting ring through the connecting base 4. Since the connecting rod 2 is connected to the first connecting plate 5 on the tightening connecting ring 3 and the second connecting plate 6 on the nut retaining ring 1 respectively, when the tightening connecting ring 3 rotates, it will drive the nut retaining ring 1 to rotate together through the connecting rod 2, thereby causing the bridge erecting machine rod nut, which is fixed by the nut retaining ring 1, to rotate accordingly, thus achieving the purpose of tightening the bridge erecting machine rod nut.

[0032] Example 2

[0033] The difference between this embodiment and embodiment 1 is that the connecting base 4 includes a connecting groove 14, a fixing block 15, and a locking block 16; a base mounting plate 13 is installed in the middle of the inner ring of the screw-on connecting ring 3, and a connecting hole 8 is opened in the middle of the base mounting plate 13; a connecting groove is opened at one end of the fixing block 15, and a locking block 16 is provided at the other end; the fixing block 15 is located on the side away from the nut fixing ring 1, and the locking block 16 is locked in the connecting groove.

[0034] A base mounting plate 13 is installed in the center of the inner ring of the tightening connecting ring 3, with a connecting hole 8 for easy installation and fixation of the connecting base 4. One end of the fixing block 15 has a connecting groove, and the other end has a locking block 16 that can engage with the connecting hole 8, allowing the fixing block 15 to be installed on the side away from the nut fixing ring 1. The connecting groove 14 is used to connect with the output end of an electric screwdriver. The connecting groove 14 can be in the shape of a slotted thread or a hexagonal nut, matching the shape of the output end of the electric screwdriver. The output end of the electric screwdriver extends into the connecting groove 14, and starting the electric screwdriver will drive the fixing block 15 and the tightening connecting ring 3 to rotate. During use, when the electric screwdriver drives the tightening connecting ring 3 to rotate, the connecting base 4 transmits power to the nut fixing ring 1 and the bridge erecting machine rod nut, ensuring that the bridge erecting machine rod nut is tightened evenly and firmly. This effectively avoids problems such as insufficient tightening or loosening caused by the instability of the connecting base 4, improving the reliability and working efficiency of the tightening device.

[0035] Example 3

[0036] The difference between this embodiment and embodiment 2 is that it also includes a threaded fixing hole 7 and a stud 17; the nut fixing ring 1 has a threaded fixing hole 7 on its ring body, and the stud 17 is connected to the threaded fixing hole 7.

[0037] The nut retaining ring 1 has a threaded fixing hole 7 on its ring body, to which the stud 17 is connected, which can further enhance the fixing effect between the nut retaining ring 1 and the nut of the bridge erecting machine boom. In actual operation, after the nut retaining ring 1 is fitted onto the outside of the nut of the bridge erecting machine boom, the stud 17 is screwed into the threaded fixing hole 7, so that the nut retaining ring 1 abuts against the outside of the nut of the bridge erecting machine, preventing relative slippage or displacement during tightening, allowing the nut retaining ring 1 to more firmly grip the nut, and in conjunction with the power transmission of the electric screwdriver, improving the stability and reliability of the entire tightening device.

[0038] Example 4

[0039] The difference between this embodiment and embodiment 3 is that the connecting rod 2 includes a threaded connection hole 9, a first straight rod 10, an inclined rod 11, and a second straight rod 12; the first straight rod 10 and the second straight rod 12 are respectively arranged horizontally; one end of the first straight rod 10 is connected to one end of the inclined rod 11, and the other end is provided with a threaded connection hole 9 and connected to the first connecting plate 5; one end of the second straight rod 12 is connected to the other end of the inclined rod 11, and the other end is provided with a threaded connection hole 9 and connected to the second connecting plate 6.

[0040] The connecting rod 2 consists of a first straight rod 10, a diagonal rod 11, and a second straight rod 12. The first straight rod 10 and the second straight rod 12 are respectively set horizontally. One end of the first straight rod 10 is connected to one end of the diagonal rod 11, and the other end is provided with a threaded connection hole 9 and connected to the first connecting plate 5. One end of the second straight rod 12 is connected to the other end of the diagonal rod 11, and the other end is provided with a threaded connection hole 9 and connected to the second connecting plate 6. This makes the overall structure of the connecting rod 2 more stable. The two ends of the connecting rod 2 can be vertically connected to the nut fixing ring 1 and the tightening connecting ring 3 respectively, which can better withstand the various forces generated during the tightening process.

[0041] Example 5

[0042] The difference between this embodiment and embodiment 4 is that the first connecting plate 5 and the second connecting plate 6 are arranged in pairs, and one end of the connecting rod 2 is placed between the two first connecting plates 5 or the second connecting plate 6.

[0043] This paired connection plate arrangement provides a more stable support and connection foundation for the connecting rod 2. During operation, the connecting rod 2 is placed between the two first connecting plates 5 or the second connecting plates 6, which effectively prevents the connecting rod 2 from shifting or shaking during the stress process, ensuring a more secure connection between the connecting rod 2 and the first connecting plate 5 or the second connecting plate 6, thereby guaranteeing the stability and accuracy of power transmission.

[0044] Example 6

[0045] The difference between this embodiment and embodiment 5 is that the outer ring of the nut fixing ring 1 is evenly provided with 3 pairs of second connecting plates 6, and the outer ring of the screw-on connecting ring 3 is evenly provided with 3 pairs of first connecting plates 5.

[0046] By using multiple pairs of evenly distributed connecting plates, the force distribution of the entire tightening device is further optimized. During operation, multiple connection points can more evenly bear the power transmitted from the electric screwdriver, making the rotation of the nut retaining ring 1 and the tightening connecting ring 3 more stable.

[0047] Example 7

[0048] The difference between this embodiment and embodiment 6 is that the diameter of the nut retaining ring 1 is larger than the diameter of the tightening connecting ring 3. This design allows the nut retaining ring 1 to provide a larger contact area and a more stable fixing effect when it fits onto the nut of the bridge erecting machine's boom. Simultaneously, the relatively smaller tightening connecting ring 3 can swing along with the output end of the electric screwdriver as it rotates, transmitting power more flexibly, reducing the likelihood of jamming, and driving the nut retaining ring 1 and the bridge erecting machine's nut to rotate.

[0049] Example 8

[0050] The difference between this embodiment and embodiment 7 is that the connecting hole 8 is square. During operation, after the locking block 16 is inserted into the square connecting hole 8, it will not slip when transmitting torque and the force will be more even, reducing the possibility of the locking block 16 slipping or loosening in the connecting hole 8.

[0051] Example 9

[0052] The difference between this embodiment and embodiment 8 is that the stud 17 is a single-ended hexagonal stud. The single-ended hexagonal stud is easy to tighten and provides good fastening performance when connected to the threaded fixing hole 7.

[0053] The working principle of this embodiment is the same as that of Embodiment 1.

[0054] In summary, this utility model, by incorporating a nut-fixing ring and a tightening connecting ring, utilizes an electric screwdriver to provide power, thus overcoming the inefficient method of manually tightening nuts. This significantly improves tightening efficiency, reduces the labor intensity of construction workers, and helps accelerate bridge construction progress. The nut-fixing ring stably secures the nut on the bridge erecting machine's boom, and, in conjunction with the tightening connecting ring and connecting rod, ensures uniform force distribution and rotation of the nut. This guarantees consistent and reliable tightening, effectively preventing loose nut connections caused by uneven manual tightening torque, and ensuring the safety and stability of bridge erection.

[0055] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A device for tightening the screw cap of a bridge machine boom, characterized in that, It includes a nut retaining ring, a connecting rod, a screw-in connecting ring, a connecting base, a first connecting plate, and a second connecting plate; the nut retaining ring and the screw-in connecting ring are arranged parallel to each other, and the connecting rod is disposed between the nut retaining ring and the screw-in connecting ring; the second connecting plate is disposed on the outer ring of the nut retaining ring; the first connecting plate is disposed on the outer ring of the screw-in connecting ring; one end of the connecting rod is connected to the first connecting plate, and the other end is connected to the second connecting plate; the connecting base is installed in the middle of the inner ring of the screw-in connecting ring.

2. A device for tightening the hanger rod nuts of a bridge machine according to claim 1, characterized in that The connecting base includes a connecting groove, a fixing block, and a locking block; a base mounting plate is installed in the middle of the inner ring of the screwing connecting ring, and a connecting hole is opened in the middle of the base mounting plate; a connecting groove is opened at one end of the fixing block, and a locking block is set at the other end; the fixing block is set on the side away from the nut fixing ring, and the locking block is locked in the connecting groove.

3. The device for tightening the boom nut of a bridge machine according to claim 1, characterized in that, It also includes a threaded fixing hole and a stud; the nut fixing ring has a threaded fixing hole on its ring body, and the stud is connected to the threaded fixing hole.

4. The device for tightening the boom nut of a bridge-launching machine according to claim 1, characterized in that, The connecting rod includes a threaded connection hole, a first straight rod, an inclined rod, and a second straight rod; the first straight rod and the second straight rod are respectively horizontally arranged; one end of the first straight rod is connected to one end of the inclined rod, and the other end is provided with a threaded connection hole and connected to the first connecting plate; one end of the second straight rod is connected to the other end of the inclined rod, and the other end is provided with a threaded connection hole and connected to the second connecting plate.

5. The device for tightening the boom nut of a bridge-launching machine according to claim 1, characterized in that, The first connecting plate and the second connecting plate are arranged in pairs, and one end of the connecting rod is placed between the two first connecting plates or the second connecting plate.

6. The device for tightening the boom nut of a bridge-launching machine according to claim 1, characterized in that, The outer ring of the nut retaining ring is evenly provided with 3 pairs of second connecting plates, and the outer ring of the screw-in connecting ring is evenly provided with 3 pairs of first connecting plates.

7. The device for tightening the boom nut of a bridge-launching machine according to claim 1, characterized in that, The diameter of the nut retaining ring is larger than the diameter of the screw-on connecting ring.

8. The tightening device for the nut of the bridge erecting machine boom according to claim 2, characterized in that, The connection hole is square.

9. The device for tightening the boom nut of a bridge-launching machine according to claim 3, characterized in that, The stud is a single-headed hexagonal stud.

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