A connecting device for lattice beams

Abstract

This invention relates to the field of slope reinforcement and lattice beam installation technology, and provides a connection device for lattice beams, including a first frame, a second frame, and a three-axis adjustment mechanism. The first frame is connected to a first lattice beam, and the second frame is connected to a second lattice beam. The three-axis adjustment mechanism includes a first double-ended screw, a second double-ended screw, a third double-ended screw, a fourth double-ended screw, a fifth double-ended screw, a sixth double-ended screw, a first screw group, a second screw group, and a third screw group. This allows the lattice beam to move within a certain displacement range during installation on a slope, eliminating the impact of anchor cable (rod) drilling position deviations in actual engineering, reducing the requirements for on-site drilling position accuracy, providing more possibilities for the installation position of the lattice beam, and enabling better slope reinforcement in complex geological conditions. It is more suitable for urgent or emergency projects with high urgency, short construction period, and higher comprehensive benefit requirements.

Description

Technical Field

[0001] This invention patent relates to the fields of slope reinforcement and lattice beam installation technology, and in particular to a connection device for connecting lattice beams. Background Technology

[0002] my country has a complex geological structure, with mountains, plateaus and hills accounting for about 70% of the country's area. In recent years, affected by global climate change, geological tectonic movements have been active in some parts of my country, and rainfall has been increasing year by year. As a result, engineering fields such as field and highway slope reinforcement are facing more challenges.

[0003] Currently, the most commonly used technology in domestic slope reinforcement engineering is cast-in-place reinforced concrete lattice beams. This technology involves numerous fabrication steps and long curing times, leading to extended construction periods. Furthermore, the harsh environment of field construction sites makes it difficult to guarantee the quality of cast-in-place lattice beams. After cast-in-place construction, prestressed anchor cables (rods) can only be tensioned after the concrete has reached sufficient strength, further delaying the project and increasing costs. Most importantly, this engineering technology has significant limitations when facing urgent or emergency projects that threaten lives or cause substantial economic losses.

[0004] Against this backdrop, the development of precast anchor cable (rod)-lattice beam technology is particularly important. For precast lattice beams, the beams can be prefabricated in a factory and then transported to the site for assembly, significantly saving time and costs. Furthermore, the standardized process has made it increasingly popular in recent years. Numerous domestic studies have proven its effectiveness, but most research on precast anchor cable (rod)-lattice beams focuses on the anchor cables (rods), while research on its weak points (i.e., connection points) is insufficient. Moreover, when assembling on slopes, the pre-drilled anchor cable (rod) holes may deviate from their positions in the precast lattice beam during actual construction, thus affecting its actual function. Summary of the Invention

[0005] (I) Purpose of the Invention

[0006] The purpose of this invention is to provide a connection device for lattice beams to solve problems such as pre-cast lattice beam position deviation and weak stress at the connection.

[0007] (II) Technical Solution

[0008] To address the aforementioned problems, a first aspect of the present invention provides a connecting device for lattice beams, the connecting device comprising a first frame, a second frame, and a three-axis adjustment mechanism, wherein the first frame is connected to a first lattice beam, and the second frame is connected to a second lattice beam.

[0009] The triaxial adjustment mechanism includes a first double-ended screw, a second double-ended screw, a third double-ended screw, a fourth double-ended screw, a fifth double-ended screw, a sixth double-ended screw, a first screw group, a second screw group, and a third screw group. The first, second, and third double-ended screws are arranged alternately from top to bottom on the first frame, and the fourth, fifth, and sixth double-ended screws are arranged alternately from top to bottom on the second frame. The first screw group is connected between the first and fourth double-ended screws, the second screw group is connected between the second and fifth double-ended screws, and the third screw group is connected between the third and sixth double-ended screws. At least two of the first, second, and third screw groups are arranged non-parallel.

[0010] The first, second, and third double-ended screws are adjustable relative to the first frame in a first direction, and the fourth, fifth, and sixth double-ended screws are adjustable relative to the second frame in the first direction to adjust the relative positions of the first and second frames in the first direction.

[0011] The first double-ended screw, the second double-ended screw, the third double-ended screw, the fourth double-ended screw, the fifth double-ended screw, and the sixth double-ended screw are configured to rotate about their respective axes to adjust the relative positions of the first frame and the second frame in the second direction;

[0012] The first double-ended screw and the fourth double-ended screw are adjustable on the first screw group; the second double-ended screw and the fifth double-ended screw are adjustable on the second screw group; and the third double-ended screw and the sixth double-ended screw are adjustable on the third screw group to adjust the relative positions of the first frame and the second frame in the third direction.

[0013] Wherein, the first direction, the second direction, and the third direction are perpendicular to each other.

[0014] The first screw assembly includes a plurality of first screws. The first double-ended screw is provided with a plurality of first connecting blocks corresponding one-to-one with the first screw. The fourth double-ended screw is provided with a plurality of fourth connecting blocks corresponding one-to-one with the first screw. The two ends of the first screw pass through the through holes of the first connecting blocks and the through holes of the fourth connecting blocks, respectively. Nuts are screwed onto the two ends of the first screw.

[0015] The second screw assembly includes multiple second screws. The second double-ended screw is provided with multiple second connecting blocks corresponding to each of the second screws. The fifth double-ended screw is provided with multiple fifth connecting blocks corresponding to each of the second screws. The two ends of the second screw pass through the through holes of the second connecting blocks and the through holes of the fifth connecting blocks, respectively. Nuts are screwed onto the two ends of the second screw.

[0016] The third screw assembly includes multiple third screws. Each third double-ended screw has multiple third connecting blocks corresponding to the third screw. Each sixth double-ended screw has multiple sixth connecting blocks corresponding to the third screw. Both ends of the third screw pass through the through holes of the third connecting blocks and the through holes of the sixth connecting blocks, respectively. Nuts are screwed onto both ends of the third screw.

[0017] The first frame includes a first plate, two first frame rods, two second frame rods, and two third frame rods. The two first frame rods are located on the left and right sides of the first plate, respectively. The two second frame rods are located on the left and right sides of the first plate, respectively. The two first frame rods, two second frame rods, and two third frame rods are located on the left and right sides of the first plate, respectively. They are spaced apart from top to bottom. The two ends of the first double-ended screw pass through the through holes of the extended ends of the two first frame rods, respectively, and nuts are screwed onto the two ends of the first double-ended screw. The two ends of the second double-ended screw pass through the through holes of the extended ends of the two second frame rods, respectively, and nuts are screwed onto the two ends of the second double-ended screw. The two ends of the third double-ended screw pass through the through holes of the extended ends of the two third frame rods, respectively, and nuts are screwed onto the two ends of the third double-ended screw.

[0018] The connection between the first frame rod and the first plate is provided with a plurality of ribs for supporting the first frame rod; and / or

[0019] The connection between the second frame rod and the first plate is provided with a plurality of ribs for supporting the second frame rod; and / or

[0020] The connection between the third frame rod and the first plate is provided with a plurality of ribs for supporting the third frame rod.

[0021] The second frame includes a second plate, two fourth frame rods, two fifth frame rods, and two sixth frame rods. The two fourth frame rods are located on the left and right sides of the second plate, respectively. The two fifth frame rods are located on the left and right sides of the second plate, respectively. The two fourth frame rods, two fifth frame rods, and two sixth frame rods are arranged at intervals from top to bottom. The two ends of the fourth double-ended screw pass through the through holes of the extended ends of the two fourth frame rods, and nuts are screwed onto the two ends of the fourth double-ended screw. The two ends of the fifth double-ended screw pass through the through holes of the extended ends of the two fifth frame rods, respectively. Nuts are screwed onto the two ends of the sixth double-ended screw. The two ends of the sixth double-ended screw pass through the through holes of the extended ends of the two sixth frame rods, respectively. Nuts are screwed onto the two ends of the sixth double-ended screw.

[0022] The connection between the fourth frame rod and the second plate is provided with multiple ribs for supporting the fourth frame rod; and / or

[0023] The connection between the fifth frame rod and the second plate is provided with multiple ribs for supporting the fifth frame rod; and / or

[0024] The connection between the sixth frame rod and the second plate is provided with a plurality of ribs for supporting the sixth frame rod.

[0025] Preferably, the first plate is rectangular, with a width of 250-600mm and a height of 300-700mm.

[0026] The first frame rod, the second frame rod, and the third frame rod are all composed of rectangular segments and semi-circular arc segments, and each has a through hole with a diameter of 35-55mm at the center position of the intersection of the rectangular segment and the semi-circular arc segment. The length of the rectangular segment of the first frame rod, the second frame rod, and the third frame rod is 100-250mm, the width is 20-50mm, and the height is 50-80mm.

[0027] The diameter of the arc segment of the first frame rod, the second frame rod, and the third frame rod is 50-80 mm.

[0028] The first double-ended screw, the second double-ended screw, and the third double-ended screw are each provided with two smooth sections with a diameter of 30-50 mm and a length of 40 mm, and two threaded sections with a diameter of 30-50 mm, a length of 50-200 mm, an external thread diameter of 33-53 mm, and a thread pitch of 2-3.5 mm.

[0029] Preferably, the second plate is rectangular, with a width of 250-600mm and a height of 300-700mm.

[0030] The fourth frame rod, the fifth frame rod, and the sixth frame rod are all composed of rectangular segments and semi-circular arc segments, and each has a through hole with a diameter of 35-55mm at the center position of the intersection of the rectangular segment and the semi-circular arc segment. The rectangular segments of the fourth frame rod, the fifth frame rod, and the sixth frame rod are all 130-280mm long, 20-50mm wide, and 50-80mm high.

[0031] The diameter of the arc-shaped segment of the fourth frame rod, the fifth frame rod, and the sixth frame rod is 50-80 mm.

[0032] The fourth, fifth, and sixth double-ended screws are each provided with two smooth sections, each with a diameter of 30-50 mm and a length of 40 mm, and two threaded sections, each with a diameter of 30-50 mm, a length of 50-200 mm, an external thread diameter of 33-53 mm, and a thread pitch of 2-3.5 mm.

[0033] (III) Beneficial Effects

[0034] The above-described technical solution of the present invention has the following beneficial technical effects:

[0035] The present invention provides a connection device for connecting lattice beams, which includes a three-axis adjustment mechanism comprising a first double-ended screw, a second double-ended screw, a third double-ended screw, a fourth double-ended screw, a fifth double-ended screw, a sixth double-ended screw, a first screw group, a second screw group, and a third screw group. The first, second, and third double-ended screws are adjustable relative to the first frame in a first direction, and the fourth, fifth, and sixth double-ended screws are adjustable relative to the second frame in a first direction to adjust the relative positions of the first and second frames in the first direction; the first, second, third, fourth, fifth, and sixth double-ended screws are rotatable about their respective axes to adjust the relative positions of the first and second frames in a second direction; the first and fourth double-ended screws are adjustable on the first screw group, the second and fifth double-ended screws are adjustable on the second screw group, and the third and sixth double-ended screws are adjustable on the third screw group to adjust the relative positions of the first and second frames in a third direction. When installing precast lattice beams on slopes, this allows the precast lattice beams to move within a certain displacement range, eliminating the impact of anchor cable (rod) drilling position deviations in actual engineering and reducing the requirements for on-site drilling position accuracy. It provides more possibilities for the installation location of lattice beams, and can better cope with the use of anchor cable (rod)-lattice system to reinforce slopes in complex geological slope conditions. It reduces the difficulty of on-site construction, while saving time and resource costs. It is more suitable for urgent or emergency projects with high urgency, short construction period and higher comprehensive benefit requirements. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the overall structure of the connection device between lattice beams of the present invention;

[0038] Figure 2 This is a schematic diagram of the structure of the first frame of the connection device between lattice beams of the present invention;

[0039] Figure 3 This is a schematic diagram of the structure of the second frame of the connection device between lattice beams of the present invention;

[0040] Figure 4This is a schematic diagram of the structure of the first double-ended screw of the connection device for connecting beams of the present invention;

[0041] Figure 5 This is a schematic diagram of the structure of the first screw of the connecting device for connecting beams of the present invention.

[0042] Figure label:

[0043] 1-First plate; 111-First frame rod; 112-Second frame rod; 113-Third frame rod; 2-Second plate; 211-Fourth frame rod; 212-Fifth frame rod; 213-Sixth frame rod; 311-First double-ended screw; 312-Second double-ended screw; 313-Third double-ended screw; 314-Fourth double-ended screw; 315-Fifth double-ended screw; 316-Sixth double-ended screw; 321-First screw; 322-Second screw; 323-Third screw; 331-First connecting block; 332-Second connecting block; 333-Third connecting block; 334-Fourth connecting block; 335-Fifth connecting block; 336-Sixth connecting block. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0045] Based on the background art, most studies on precast anchor cable (rod)-lattice beams focus on the anchor cables (rods), while research on their weak points (i.e., connection points) is insufficient. Furthermore, during assembly on slopes, deviations may occur between the pre-drilled anchor cable (rod) holes and the pre-drilled positions in the precast lattice beams during actual construction, affecting their actual function. This invention provides a connection device for lattice beams, allowing the precast lattice beams to move within a certain displacement range during slope installation. This eliminates the impact of anchor cable (rod) hole position deviations in actual engineering, reducing the requirements for on-site hole position accuracy. It provides more possibilities for the installation position of lattice beams, better addressing the use of anchor cable (rod)-lattice systems for slope reinforcement in complex geological conditions. It reduces on-site construction difficulty, saves time and resource costs, and is more suitable for urgent or emergency projects with high urgency, short construction periods, and higher comprehensive benefit requirements.

[0046] Example 1.

[0047] like Figures 1-5As shown, the connection device for connecting lattice beams of the present invention includes a first frame, a second frame, and a three-axis adjustment mechanism. The first frame is connected to the first lattice beam, the second frame is connected to the second lattice beam, and the three-axis adjustment mechanism is disposed between the first frame and the second frame.

[0048] like Figure 1 and Figure 2 As shown, the first frame includes a first plate 1, two first frame rods 111, two second frame rods 112, and two third frame rods 113. The two first frame rods 111 are located on the left and right sides of the first plate 1, the two second frame rods 112 are located on the left and right sides of the first plate 1, and the two third frame rods 113 are located on the left and right sides of the first plate 1. The two first frame rods 111, the two second frame rods 112, and the two third frame rods 113 are arranged at intervals from top to bottom.

[0049] Preferably, the first plate 1 is rectangular with a width of 250-600mm and a height of 300-700mm. The first frame rod 111, the second frame rod 112, and the third frame rod 113 are all composed of rectangular segments and semi-circular arc segments, and each has a through hole with a diameter of 35-55mm at the center position of the intersection of the rectangular segment and the semi-circular arc segment. The length of the rectangular segments of the first frame rod 111, the second frame rod 112, and the third frame rod 113 is 100-250mm, the width is 20-50mm, and the height is 50-80mm.

[0050] The diameter of the arc segments of the first frame rod 111, the second frame rod 112, and the third frame rod 113 is 50-80 mm.

[0051] The connection between the first frame rod 111 and the first plate 1 is provided with a plurality of ribs for supporting the first frame rod 111.

[0052] Optionally, four ribs are provided for supporting the connection between the first frame rod 111 and the first plate 1. Each rib is 10-30mm long, 15-35mm wide, and 5-15mm thick.

[0053] The connection between the second frame rod 112 and the first plate 1 is provided with a plurality of ribs for supporting the second frame rod 112.

[0054] Optionally, the connection between the second frame rod 112 and the first plate 1 is provided with four supporting ribs, each rib being 10-30mm long, 15-35mm wide, and 5-15mm thick.

[0055] The connection between the third frame rod 113 and the first plate 1 is provided with a plurality of ribs for supporting the third frame rod 113.

[0056] Optionally, four ribs are provided for the connection between the third frame rod 113 and the first plate 1. Each rib is 10-30mm long, 15-35mm wide, and 5-15mm thick. Of course, the above distances are only exemplary, and those skilled in the art can flexibly set them.

[0057] Preferably, all components of the first frame are made of steel, which makes full use of the load-bearing and load-transferring capacity of the steel structure, making the precast lattice beams more uniformly stressed. While bearing greater anchoring force, it also ensures that the beams work without cracks and extends their service life.

[0058] like Figure 1 and Figure 3 As shown, the second frame includes a second plate 2, two fourth frame rods 211, two fifth frame rods 212, and two sixth frame rods 213. The two fourth frame rods 211 are located on the left and right sides of the second plate 2, the two fifth frame rods 212 are located on the left and right sides of the second plate 2, and the two sixth frame rods 213 are located on the left and right sides of the second plate 2. The two fourth frame rods 211, the two fifth frame rods 212, and the two sixth frame rods 213 are arranged at intervals from top to bottom.

[0059] Preferably, the second plate 2 is rectangular, with a width of 250-600mm and a height of 300-700mm.

[0060] The fourth frame rod 211, the fifth frame rod 212, and the sixth frame rod 213 are all composed of rectangular segments and semi-circular arc segments, and each has a through hole with a diameter of 35-55mm at the center position of the intersection of the rectangular segment and the semi-circular arc segment. The length of the rectangular segment of the fourth frame rod 211, the fifth frame rod 212, and the sixth frame rod 213 is 130-280mm, the width is 20-50mm, and the height is 50-80mm.

[0061] The diameter of the arc-shaped segments of the fourth frame rod 211, the fifth frame rod 212, and the sixth frame rod 213 is 50-80 mm.

[0062] The connection between the fourth frame rod 211 and the second plate 2 is provided with multiple ribs for supporting the fourth frame rod 211.

[0063] Optionally, the connection between the fourth frame rod 211 and the second plate 2 is provided with four supporting ribs, each rib being 10-30mm long, 15-35mm wide, and 5-15mm thick.

[0064] The connection between the fifth frame rod 212 and the second plate 2 is provided with multiple ribs for supporting the fifth frame rod 212;

[0065] Optionally, the connection between the fifth frame rod 212 and the second plate 2 is provided with four supporting ribs, each rib being 10-30mm long, 15-35mm wide, and 5-15mm thick.

[0066] The connection between the sixth frame rod 213 and the second plate 2 is provided with multiple ribs for supporting the sixth frame rod 213;

[0067] Optionally, four ribs are provided for supporting the connection between the sixth frame rod 213 and the second plate 2. Each rib is 10-30mm long, 15-35mm wide, and 5-15mm thick. Of course, the above distances are only exemplary, and those skilled in the art can flexibly set them.

[0068] Preferably, all components of the second frame are made of steel, which makes full use of the load-bearing and load-transferring capacity of the steel structure, making the precast lattice beams more uniformly stressed. While bearing greater anchoring force, it also ensures that the beams work without cracks and extends their service life.

[0069] Combination Figure 1 , Figure 4 and Figure 5 The three-axis adjustment mechanism includes a first double-ended screw 311, a second double-ended screw 312, a third double-ended screw 313, a fourth double-ended screw 314, a fifth double-ended screw 315, a sixth double-ended screw 316, a first screw group, a second screw group, and a third screw group;

[0070] like Figure 1 As shown, the first double-ended screw 311, the second double-ended screw 312 and the third double-ended screw 313 are arranged alternately from top to bottom on the first frame, and the fourth double-ended screw 314, the fifth double-ended screw 315 and the sixth double-ended screw 316 are arranged alternately from top to bottom on the second frame.

[0071] Specifically, the two ends of the first double-ended screw 311 pass through the through holes of the protruding ends of the two first frame rods 111 respectively, and the two ends of the first double-ended screw 311 are respectively screwed with nuts and washers;

[0072] The two ends of the second double-ended screw 312 pass through the through holes of the protruding ends of the two second frame rods 112 respectively, and the two ends of the second double-ended screw 312 are respectively screwed with nuts and washers.

[0073] The two ends of the third double-ended screw 313 pass through the through holes of the protruding ends of the two third frame rods 113 respectively, and the two ends of the third double-ended screw 313 are respectively screwed with nuts and washers.

[0074] The two ends of the fourth double-ended screw 314 pass through the through holes of the protruding ends of the two fourth frame rods 211 respectively, and the two ends of the fourth double-ended screw 314 are respectively screwed with nuts and washers;

[0075] The two ends of the fifth double-ended screw 315 pass through the through holes of the protruding ends of the two fifth frame rods 212 respectively, and the two ends of the fifth double-ended screw 315 are respectively screwed with nuts and washers;

[0076] The two ends of the sixth double-ended screw 316 pass through the through holes of the protruding ends of the two sixth frame rods 213 respectively, and the two ends of the sixth double-ended screw 316 are respectively screwed with nuts and washers;

[0077] In one embodiment,

[0078] Combination Figure 1 and Figure 4 It can be seen that the first double-ended screw 311 is provided with two smooth sections and two threaded sections, and three first connecting blocks 331 are provided between the smooth sections and the threaded sections. Nuts and washers are screwed to both ends of the first double-ended screw 311.

[0079] The second double-ended screw 312 is provided with two smooth sections and two threaded sections. Three second connecting blocks 332 are provided between the smooth sections and the threaded sections. Nuts and washers are screwed to both ends of the second double-ended screw 312.

[0080] The third double-ended screw 313 is provided with two smooth sections and two threaded sections. Three third connecting blocks 333 are provided between the smooth sections and the threaded sections. Nuts and washers are screwed to both ends of the third double-ended screw 313.

[0081] The fourth double-ended screw 314 is provided with two smooth sections and two threaded sections. Three fourth connecting blocks 334 are provided between the smooth sections and the threaded sections. Nuts and washers are screwed to both ends of the fourth double-ended screw 314.

[0082] The fifth double-ended screw 315 is provided with two smooth sections and two threaded sections. Three fifth connecting blocks 335 are provided between the smooth sections and the threaded sections. Nuts and washers are screwed to both ends of the fifth double-ended screw 315.

[0083] The sixth double-ended screw 316 is provided with two smooth sections and two threaded sections. Three sixth connecting blocks 336 are provided at intervals between the smooth sections and the threaded sections. Nuts and washers are screwed to both ends of the sixth double-ended screw 316.

[0084] Preferably, the smooth sections on the first double-ended screw 311, the second double-ended screw 312, the third double-ended screw 313, the fourth double-ended screw 314, the fifth double-ended screw 315, and the sixth double-ended screw 316 all have a diameter of 30-50 mm and a length of 40 mm.

[0085] The threaded sections on the first double-ended screw 311, the second double-ended screw 312, the third double-ended screw 313, the fourth double-ended screw 314, the fifth double-ended screw 315, and the sixth double-ended screw 316 all have a thread diameter of 30-50 mm, a length of 50-200 mm, an external thread diameter of 33-53 mm, and a pitch of 2-3.5 mm.

[0086] Preferably, the first connecting block 331, the second connecting block 332, the third connecting block 333, the fourth connecting block 334, the fifth connecting block 335 and the sixth connecting block 336 are all configured as cuboids with a circular hole in the center;

[0087] The lengths of the first connecting block 331, the second connecting block 332, the third connecting block 333, the fourth connecting block 334, the fifth connecting block 335, and the sixth connecting block 336 are all 40-100mm, the widths are all 40-100mm, the thicknesses are all 35-55mm, and the diameters of the round holes are all 28-50mm.

[0088] Preferably, the nuts used for screwing the first double-ended screw 311, the second double-ended screw 312, the third double-ended screw 313, the fourth double-ended screw 314, the fifth double-ended screw 315, and the sixth double-ended screw 316 are all hexagonal nuts with a hole diameter of 30-50mm, an internal thread diameter of 33-53mm, and a pitch of 2-3.5mm.

[0089] The washers used for screwing the first double-ended screw 311, the second double-ended screw 312, the third double-ended screw 313, the fourth double-ended screw 314, the fifth double-ended screw 315, and the sixth double-ended screw 316 are all flat washers with an inner diameter of 33-52 mm, an outer diameter of 56-92 mm, and a thickness of 4 mm. Of course, the above distances are only exemplary, and those skilled in the art can flexibly set them.

[0090] Combination Figure 1 and Figure 5 As shown, the first screw group is connected between the first double-ended screw 311 and the fourth double-ended screw 314, the second screw group is connected between the second double-ended screw 312 and the fifth double-ended screw 315, and the third screw group is connected between the third double-ended screw 313 and the sixth double-ended screw 316. At least two of the first screw group, the second screw group, and the third screw group are not parallel.

[0091] Furthermore, the planes containing the first screw assembly, the second screw assembly, and the third screw assembly do not intersect on the same straight line, thus ensuring that the three-axis adjustment mechanism can... Figure 1 It bears force in the X-axis direction.

[0092] The first screw assembly includes multiple first screws 321. A first double-ended screw 311 is provided with multiple first connecting blocks 331 corresponding to each of the first screws 321. A fourth double-ended screw 314 is provided with multiple fourth connecting blocks 334 corresponding to each of the first screws 321. The two ends of the first screw 321 pass through the through holes of the first connecting blocks 331 and the through holes of the fourth connecting blocks 334, respectively. Nuts and washers are screwed onto the two ends of the first screw 321, respectively.

[0093] Preferably, the first screw assembly includes three first screws 321, each corresponding to a first connecting block 331 on a first double-ended screw 311, and each corresponding to a fourth connecting block 334 on a fourth double-ended screw 314. The two ends of the first screw 321 pass through the through holes of the first connecting block 331 and the fourth connecting block 334, respectively, and a nut and a washer are screwed onto the two ends of the first screw 321, respectively.

[0094] The second screw assembly includes multiple second screws 322. The second double-ended screw 312 is provided with multiple second connecting blocks 332 corresponding to the second screws 322. The fifth double-ended screw 315 is provided with multiple fifth connecting blocks 335 corresponding to the second screws 322. The two ends of the second screw 322 pass through the through holes of the second connecting blocks 332 and the through holes of the fifth connecting blocks 335, respectively. Nuts and washers are screwed onto the two ends of the second screw 322, respectively.

[0095] Optionally, the second screw assembly includes three second screws 322, each corresponding to a second connecting block 332 on the second double-ended screw 312, and each corresponding to a fifth connecting block 335 on the fifth double-ended screw 315. The two ends of the second screw 322 pass through the through holes of the second connecting block 332 and the fifth connecting block 335, respectively, and a nut and a washer are screwed onto the two ends of the second screw 322, respectively.

[0096] The third screw assembly includes multiple third screws 333. The third double-ended screw 313 is provided with multiple third connecting blocks 323 corresponding to the third screw 333. The sixth double-ended screw 316 is provided with multiple sixth connecting blocks 326 corresponding to the third screw 333. The two ends of the third screw 333 pass through the through holes of the third connecting block 323 and the through holes of the sixth connecting block 326, respectively. Nuts and washers are screwed onto the two ends of the third screw 333, respectively.

[0097] Optionally, the third screw assembly includes three third screws 333, each corresponding to a third connecting block 323 on the third double-ended screw 313, and each corresponding to a sixth connecting block 326 on the sixth double-ended screw 316. The two ends of the third screw 333 pass through the through holes of the third connecting block 323 and the sixth connecting block 326, respectively, and a nut and a washer are screwed onto the two ends of the third screw 333, respectively.

[0098] Preferably, the diameters of the first screw 331, the second screw 332, and the third screw 333 are all 25–48 mm, the diameters of the external threads are all 27–50 mm, and the pitches are all 2–3.5 mm.

[0099] The nuts used for screwing the first screw 331, the second screw 332, and the third screw 333 are all hexagonal nuts with a hole diameter of 25-50mm and an internal thread diameter of 27-52mm.

[0100] The washers used for screwing the first screw 331, the second screw 332, and the third screw 333 are all flat washers with an inner diameter of 33-52 mm, an outer diameter of 56-92 mm, and a thickness of 4 mm. Of course, the above distances are only exemplary, and those skilled in the art can flexibly set them.

[0101] The first double-ended screw 311, the second double-ended screw 312, the third double-ended screw 313, the fourth double-ended screw 314, the fifth double-ended screw 315, and the sixth double-ended screw 316 are configured to be adjustable relative to the second frame in a first direction to adjust the relative position of the first frame and the second frame in the first direction; the first double-ended screw 311, the second double-ended screw 312, the third double-ended screw 313, the fourth double-ended screw 314, the fifth double-ended screw 315, and the sixth double-ended screw 316 are configured to be able to rotate around their respective axes The line rotates to adjust the relative position of the first frame and the second frame in the second direction; the first double-ended screw 311 and the fourth double-ended screw 314 are adjustable on the first screw group, the second double-ended screw 312 and the fifth double-ended screw 315 are adjustable on the second screw group, and the third double-ended screw 313 and the sixth double-ended screw 316 are adjustable on the third screw group to adjust the relative position of the first frame and the second frame in the third direction; wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0102] In one embodiment, reference Figure 1 As shown, taking the first direction as the direction of the Y-axis, the second direction as the direction of the Z-axis, and the third direction as the direction of the X-axis, with the X-axis, Y-axis, and Z-axis being perpendicular to each other, the position adjustment process of the present invention will be further explained.

[0103] When it is necessary to adjust the spacing between the first frame and the second frame, that is, to adjust the position of the first frame and the second frame in the X-axis direction, the nuts at both ends of all the first screws 321, the second screws 322, and the third screws 323 can be removed first. Then, the positions of the first connecting block 331 and the fourth connecting block 334 on the corresponding first screws 321, the second connecting block 332 and the fifth connecting block 335 on the corresponding second screws 322, and the third connecting block 333 and the sixth connecting block 336 on the corresponding third screws 323 can be adjusted. After the adjustment is completed, the nuts at both ends of the first screws 321, the second screws 322, and the third screws 323 can be reinstalled to complete the adjustment of the position of the first frame and the second frame in the X-axis direction.

[0104] When it is necessary to adjust the position of the first frame and the second frame in the Y-axis direction, firstly, remove all the nuts at both ends of the first double-ended screw 311, the second double-ended screw 312, the third double-ended screw 313, the fourth double-ended screw 314, the fifth double-ended screw 315, and the sixth double-ended screw 316. Then, adjust the position of the first double-ended screw 311 on the first frame rod 111, adjust the position of the second double-ended screw 312 on the second frame rod 112, and adjust the position of the third double-ended screw 313 on the third frame rod 113. Adjust the position of the fourth double-ended screw 314 on the fourth frame rod 114, adjust the position of the fifth double-ended screw 315 on the fifth frame rod 115, and adjust the position of the sixth double-ended screw 316 on the sixth frame rod 116. After the adjustment is completed, install all the nuts at both ends of the first double-ended screw 311, the second double-ended screw 312, the third double-ended screw 313, the fourth double-ended screw 314, the fifth double-ended screw 315, and the sixth double-ended screw 316 to complete the adjustment of the position of the first frame and the second frame in the Y-axis direction.

[0105] When it is necessary to adjust the position of the first frame and the second frame in the Z-axis direction, firstly, remove all the nuts at both ends of the first double-ended screw 311, the second double-ended screw 312, the third double-ended screw 313, the fourth double-ended screw 314, the fifth double-ended screw 315, and the sixth double-ended screw 316, as well as all the nuts at both ends of the first screw 321, the second screw 322, and the third screw 323. Then, rotate the first double-ended screw 311, the second double-ended screw 312, the third double-ended screw 313, the fourth double-ended screw 314, the fifth double-ended screw 315, and the sixth double-ended screw 316 around their respective axes. After adjusting the positions of the fifth double-ended screw 315 and the sixth double-ended screw 316, the first double-ended screw 311, the second double-ended screw 312, the third double-ended screw 313, the fourth double-ended screw 314, the fifth double-ended screw 315, the sixth double-ended screw 316, all the first screws 321, all the second screws 322, and all the third screws 323, install all the nuts at both ends of the first double-ended screw 311, the second double-ended screw 312, the third double-ended screw 313, the fourth double-ended screw 314, the fifth double-ended screw 315, the sixth double-ended screw 316, all the nuts at both ends of the first screw 321, all the nuts at both ends of the second screw 322, and all the nuts at both ends of the third screw 323. This completes the adjustment of the positions of the first frame and the second frame in the Z-axis direction.

[0106] The adjustable positions in the three directions allow the lattice beam to move within a certain displacement range during installation on the slope, eliminating the impact of anchor cable (rod) drilling position deviation in actual engineering and reducing the requirements for on-site drilling position accuracy.

[0107] Preferably, all components of the connecting device between the above-mentioned lattice beams are made of low alloy steel with a yield strength of not less than 345 MPa.

[0108] All components are made of steel structure, which makes full use of the load-bearing and load-transferring capacity of steel structure, making the stress of precast lattice beams more uniform. While bearing greater anchoring force, it also ensures that the beams work without cracks and extends service life.

[0109] Example 2.

[0110] Unlike Embodiment 1, both the first plate 1 and the second plate 2 are provided with four through holes, the distance from the edge of the plate to the through holes is 40-100mm, and the radius of the through holes is 20-50mm.

[0111] The through holes are designed to facilitate later bolting to the steel bars pre-installed in the lattice beam, so as to fix the plates on the lattice beam.

[0112] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the protection scope of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A connecting device for lattice beams, characterized in that The connecting device includes a first frame, a second frame, and a three-axis adjustment mechanism. The first frame is connected to the first lattice beam, and the second frame is connected to the second lattice beam. The triaxial adjustment mechanism includes a first double-ended screw, a second double-ended screw, a third double-ended screw, a fourth double-ended screw, a fifth double-ended screw, a sixth double-ended screw, a first screw group, a second screw group, and a third screw group. The first, second, and third double-ended screws are arranged alternately from top to bottom on the first frame, and the fourth, fifth, and sixth double-ended screws are arranged alternately from top to bottom on the second frame. The first screw group is connected between the first and fourth double-ended screws, the second screw group is connected between the second and fifth double-ended screws, and the third screw group is connected between the third and sixth double-ended screws. At least two of the first, second, and third screw groups are not parallel. The first screw assembly includes multiple first screws. The first double-ended screw is provided with multiple first connecting blocks corresponding to the first screws. The fourth double-ended screw is provided with multiple fourth connecting blocks corresponding to the first screws. The two ends of the first screws pass through the through holes of the first connecting blocks and the through holes of the fourth connecting blocks, respectively. Nuts are screwed onto the two ends of the first screws. The second screw assembly includes multiple second screws. The second double-ended screw is provided with multiple second connecting blocks corresponding to each of the second screws. The fifth double-ended screw is provided with multiple fifth connecting blocks corresponding to each of the second screws. The two ends of the second screw pass through the through holes of the second connecting blocks and the through holes of the fifth connecting blocks, respectively. Nuts are screwed onto the two ends of the second screw. The third screw assembly includes multiple third screws. Each third double-ended screw is provided with multiple third connecting blocks corresponding to the third screw. Each sixth double-ended screw is provided with multiple sixth connecting blocks corresponding to the third screw. Both ends of the third screw pass through the through holes of the third connecting blocks and the through holes of the sixth connecting blocks, respectively. Nuts are screwed onto both ends of the third screw. The first double-ended screw, the second double-ended screw, and the third double-ended screw are configured to be adjustable relative to the first frame in a first direction, and the fourth double-ended screw, the fifth double-ended screw, and the sixth double-ended screw are configured to be adjustable relative to the second frame in the first direction so as to adjust the relative position of the first frame and the second frame in the first direction; The first double-ended screw, the second double-ended screw, the third double-ended screw, the fourth double-ended screw, the fifth double-ended screw, and the sixth double-ended screw are configured to rotate about their respective axes to adjust the relative positions of the first frame and the second frame in a second direction. The first double-ended screw, the fourth double-ended screw, the second double-ended screw, the fifth double-ended screw, and the third double-ended screw are adjustable on the third screw group to adjust the relative positions of the first frame and the second frame in a third direction. Wherein, the first direction, the second direction, and the third direction are perpendicular to each other.

2. A connecting device for lattice beams according to claim 1, characterized in that The first frame includes a first plate, two first frame rods, two second frame rods, and two third frame rods. The two first frame rods are located on the left and right sides of the first plate, respectively. The two second frame rods are located on the left and right sides of the first plate, respectively. The two first frame rods, two second frame rods, and two third frame rods are located on the left and right sides of the first plate, respectively. They are spaced apart from top to bottom. The two ends of the first double-ended screw pass through the through holes of the extended ends of the two first frame rods, respectively, and nuts are screwed onto the two ends of the first double-ended screw. The two ends of the second double-ended screw pass through the through holes of the extended ends of the two second frame rods, respectively, and nuts are screwed onto the two ends of the second double-ended screw. The two ends of the third double-ended screw pass through the through holes of the extended ends of the two third frame rods, respectively, and nuts are screwed onto the two ends of the third double-ended screw.

3. A connecting device for lattice beams according to claim 2, characterized in that The connection between the first frame rod and the first plate is provided with a plurality of ribs for supporting the first frame rod; and / or The connection between the second frame rod and the first plate is provided with a plurality of ribs for supporting the second frame rod; and / or The connection between the third frame rod and the first plate is provided with a plurality of ribs for supporting the third frame rod.

4. A connecting device for lattice beams according to claim 3, characterized in that The second frame includes a second plate, two fourth frame rods, two fifth frame rods, and two sixth frame rods. The two fourth frame rods are located on the left and right sides of the second plate, respectively. The two fifth frame rods are located on the left and right sides of the second plate, respectively. The two fourth frame rods, two fifth frame rods, and two sixth frame rods are arranged at intervals from top to bottom. The two ends of the fourth double-ended screw pass through the through holes of the extended ends of the two fourth frame rods, and nuts are screwed onto the two ends of the fourth double-ended screw. The two ends of the fifth double-ended screw pass through the through holes of the extended ends of the two fifth frame rods, respectively. Nuts are screwed onto the two ends of the sixth double-ended screw. The two ends of the sixth double-ended screw pass through the through holes of the extended ends of the two sixth frame rods, respectively. Nuts are screwed onto the two ends of the sixth double-ended screw.

5. A connecting device for lattice beams according to claim 4, characterized in that The connection between the fourth frame rod and the second plate is provided with multiple ribs for supporting the fourth frame rod; and / or The connection between the fifth frame rod and the second plate is provided with multiple ribs for supporting the fifth frame rod; and / or The connection between the sixth frame rod and the second plate is provided with a plurality of ribs for supporting the sixth frame rod.

6. The connecting device for lattice beams according to claim 5, characterized in that, The first plate is rectangular, with a width of 250~600mm and a height of 300~700mm; The first frame rod, the second frame rod, and the third frame rod are all composed of rectangular segments and semi-circular arc segments, and each has a through hole with a diameter of 35~55mm at the center position of the intersection of the rectangular segment and the semi-circular arc segment. The length of the rectangular segment of the first frame rod, the second frame rod, and the third frame rod is 100~250mm, the width is 20~50mm, and the height is 50~80mm. The diameter of the arc segment of the first frame rod, the second frame rod, and the third frame rod is 50~80mm. The first double-ended screw, the second double-ended screw, and the third double-ended screw are each provided with two smooth sections with a diameter of 30-50 mm and a length of 40 mm, and two threaded sections with a diameter of 30-50 mm, a length of 50-200 mm, an external thread diameter of 33-53 mm, and a thread pitch of 2-3.5 mm.

7. A connecting device for lattice beams according to claim 6, characterized in that The second plate is rectangular, with a width of 250~600mm and a height of 300~700mm; The fourth, fifth, and sixth frame rods are all composed of rectangular segments and semi-circular arc segments, and each has a through hole with a diameter of 35-55mm at the center position of the intersection of the rectangular segment and the semi-circular arc segment. The rectangular segments of the fourth, fifth, and sixth frame rods are all 130-280mm long, 20-50mm wide, and 50-80mm high. The arc segments of the fourth, fifth, and sixth frame rods are all 50-80mm in diameter. The fourth, fifth, and sixth double-ended screws are each provided with two smooth sections with a diameter of 30-50 mm and a length of 40 mm, and two threaded sections with a diameter of 30-50 mm, a length of 50-200 mm, an external thread diameter of 33-53 mm, and a thread pitch of 2-3.5 mm.

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