Angle steel bottom beam structure with adjustable height

Abstract

The present invention discloses an angle steel bottom beam structure with adjustable height, comprising an adjustment unit and a bottom plate; the adjustment unit is arranged in at least two groups in parallel; the adjustment unit comprises a first angle steel, a second angle steel and an adjustment bolt; the first angle steel comprises a first side and a second side; the second angle steel comprises a third side and a fourth side; the second angle steel is arranged above the first angle steel in the same direction; the first side corresponds to the third side up and down, and the two are connected by sliding fit along the width direction of the first side or the third side; the second side corresponds to the fourth side up and down, and a moving distance is provided between the two; the adjustment bolt is threadedly connected to the fourth side, and has an abutting end for abutting against the outer side surface of the second side; the bottom plate is respectively connected to the second angle steel of each group of the adjustment units. The present invention can meet the demand for tension adjustment of the drive chain of the host in both horizontal and vertical directions, and has strong practicality.

Description

Technical Field

[0001] The invention relates to the technical field of escalators, in particular to an angle steel bottom beam structure with adjustable height. Background Art

[0002] Usually, escalators use flat steel or channel steel as the main machine bottom beam, and the main machine drive chain can only be tightened in the horizontal direction, and cannot be adjusted in height. When encountering an escalator with a machine room located below, the main machine drive chain is almost vertical, and adjusting the horizontal direction has little effect on tightening the main machine chain, making it difficult to achieve a good adjustment effect. Summary of the invention

[0003] In view of the above-mentioned technical problems, the purpose of the present invention is to propose an angle steel bottom beam structure with adjustable height, which can meet the requirements of tension adjustment of the drive chain of the main machine in both horizontal and vertical directions and has strong practicality.

[0004] The technical solution of the present invention is achieved as follows: an angle steel bottom beam structure with adjustable height includes an adjustment unit and a bottom plate; the adjustment unit is arranged in parallel in at least two groups; the adjustment unit includes a first angle steel, a second angle steel and an adjustment bolt;

[0005] The first angle steel includes a first side and a second side; the second angle steel includes a third side and a fourth side;

[0006] The second angle steel is arranged above the first angle steel in the same direction; the first side corresponds to the third side up and down, and the two are connected by sliding fit along the width direction of the first side or the third side; the second side corresponds to the fourth side up and down, and a moving distance is provided between the two; the adjusting bolt is threadedly connected to the fourth side, and has an abutting end for abutting against the outer side surface of the second side;

[0007] The bottom plate is respectively connected to the second angle steel of each group of the adjustment units.

[0008] Furthermore, the adjustment unit includes a fastening bolt; a first waist-shaped hole is provided on the third side; the first waist-shaped hole extends along the width direction of the third side; a first threaded hole is provided on the first side corresponding to the first waist-shaped hole; the fastening bolt is used to be inserted into the first waist-shaped hole and threadedly connected to the first threaded hole.

[0009] Furthermore, a connecting piece is provided on the second angle steel; and the bottom plate is connected to the connecting piece.

[0010] Furthermore, a connecting bolt is provided between the base plate and the connecting member; a second threaded hole is provided on the connecting member; a second waist-shaped hole is provided on the base plate; the connecting bolt is used to be inserted into the second waist-shaped hole and threadedly connected with the second threaded hole.

[0011] Furthermore, the second waist-shaped hole extends along the length direction of the first angle steel.

[0012] Furthermore, a locking nut is threadedly connected to the adjusting bolt; the locking nut is used to cooperate with the outer surface of the fourth side and lock the adjusting bolt.

[0013] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0014] 1. The present invention skillfully uses the inclined surface of the angle steel as an adjustment sliding surface. By adjusting the adjusting bolt, the second angle steel can move obliquely upward or obliquely downward relative to the first angle steel (the oblique movement can be decomposed into two directions, horizontal and vertical). This can adjust the vertical and horizontal positions of the second angle steel, and further adjust the position of the main machine located on the bottom plate, thereby realizing the demand for tightening and adjusting the drive chain of the main machine in both horizontal and vertical directions, and has strong practicality.

[0015] 2. The material acquisition difficulty and production cost of the structure of this embodiment are low, and the material can be selected from standard profiles, and the processing method is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solution of the present invention is further described below in conjunction with the accompanying drawings:

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the overall structure of the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram of the main view structure;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the first angle steel of the present invention;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the second angle steel of the present invention;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the base plate of the present invention;

[0022] Among them: 1. first angle steel; 11. first side; 12. second side; 121. first threaded hole; 2. second angle steel; 21. third side; 211. first waist-shaped hole; 22. fourth side; 221. matching threaded hole; 3. bottom plate; 31. second waist-shaped hole; 4. adjusting bolt; 41. locking nut; 5. fastening bolt; 6. connecting bolt; 7. connecting piece; 71. second threaded hole. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0024] like Figure 1-5 The figure shows an angle steel bottom beam structure with adjustable height according to the present invention, on which the main unit of the escalator is installed. The structure includes an adjustment unit and a bottom plate 3. There are at least two groups of adjustment units arranged in parallel, and two groups of adjustment units in this embodiment are arranged with a predetermined spacing between them. The adjustment unit includes a first angle steel 1, a second angle steel 2 and an adjustment bolt 4. The first angle steel 1 and the second angle steel 2 of this embodiment are equilateral angle steels or unequal angle steels in the prior art. The first angle steel 1 includes a first side 11 and a second side 12. The second angle steel 2 includes a third side 21 and a fourth side 22. The angle formed between the first side 11 and the second side 12 is determined according to actual design requirements, preferably 90°. The angle of the second angle steel 2 is equal to that of the first angle steel 1.

[0025] The second angle steel 2 is arranged in the same direction above the first angle steel 1. The first side 11 corresponds to the third side 21 up and down, and the two are connected by sliding fit along the width direction of the first side 11 or the third side 21. The second side 12 corresponds to the fourth side 22 up and down, and a moving distance is formed between the two. The aforementioned adjustment bolt 4 is used to adjust the size of the moving distance. Specifically, the adjustment bolt 4 is threadedly connected to the fourth side 22 through the matching threaded hole 221, and the adjustment bolt 4 has an abutment end facing the outer side of the second side 12, and the abutment end is used to abut against the outer side of the second side 12. By rotating the position of the adjustment bolt 4 forward and reversely, the abutment end of the adjustment bolt 4 abuts against the second side 12, thereby pushing the fourth side 22 to move in the direction close to or away from the second side 12, and then pushing the second angle steel 2 to move along the width direction of the first side 11 or the third side 21. The central axis of the adjustment bolt 4 in this embodiment is perpendicular to the outer side of the second side. The bottom plate 3 is respectively connected to the second angle steel 2 of each group of adjustment units. When the second angle steel 2 moves, the bottom plate 3 moves accordingly. The aforementioned adjusting bolts 4 are arranged in two groups at intervals along the length direction of the second angle steel 2.

[0026] The aforementioned adjusting bolt 4 is threadedly connected with a locking nut 41. The locking nut 41 is used to cooperate with the outer side surface of the fourth side 22 and lock the adjusting bolt 4. The moving distance formed between the aforementioned second side 12 and the fourth side 22 is small, and the locking nut 41 of this embodiment cannot enter the moving distance. The locking nut 41 can only be installed at the outer position of the second angle steel 2 to facilitate the locking operation of the locking nut 41.

[0027] Among them, a first waist-shaped hole 211 is processed on the third side 21. The first waist-shaped hole 211 extends along the width direction of the third side 21. A first threaded hole 121 is processed on the first side 11 corresponding to the first waist-shaped hole 211. The fastening bolt 5 is inserted into the first waist-shaped hole 211 and is threadedly connected with the first threaded hole 121, so that the first side 11 and the third side 21 can be locked, thereby achieving the fixation of the first angle steel 1 and the second angle steel 2. The fastening bolts 5 are arranged in two groups in the length direction of the second angle steel 2.

[0028] A connecting piece 7 is installed on the second angle steel 2 by welding. The base plate 3 is connected to the connecting piece 7, and after the connection is completed, the base plate 3 is arranged horizontally. Several mounting holes are processed on the base plate 3, and the main machine is fixed on the base plate 3. The base plate 3 and the connecting piece 7 are fixedly connected by connecting bolts 6. Specifically, a second threaded hole 71 is processed on the connecting piece 7, and a second waist-shaped hole 31 is processed on the base plate 3 corresponding to the second threaded hole 71. The connecting bolt 6 is inserted into the second waist-shaped hole 31 and is threadedly connected with the second threaded hole 71, so as to realize the locking fixation between the base plate 3 and the connecting piece 7. The relative position between the second waist-shaped hole 31 and the second threaded hole 71 is adjusted to complete the position adjustment of the base plate 3 in the horizontal direction. Specifically, the second waist-shaped hole 31 extends along the length direction of the first angle steel 1, so that the position of the base plate 3 in the length direction of the first angle steel 1 can be adjusted.

[0029] During the specific adjustment, loosen the locking nut 41 and the fastening bolt 5, adjust each set of adjusting bolts 4 in turn, and move the second angle steel 2 obliquely upward or obliquely downward relative to the first angle steel 1 (oblique movement can be decomposed into horizontal and vertical directions) to adjust the vertical and horizontal positions of the second angle steel 2, and then adjust the position of the main machine on the bottom plate 3, so as to achieve the tension adjustment of the drive chain of the main machine in the horizontal and vertical directions. After the adjustment is completed, the adjusting bolts 4 are locked by the locking nut 41, and the second angle steel 2 is further tightened by the fastening bolts 5.

[0030] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A height-adjustable angle steel bottom beam structure, comprising an adjustment unit and a bottom plate; characterized in that: The adjustment units are arranged in parallel in at least two groups; the adjustment units include a first angle steel, a second angle steel and an adjustment bolt; The first angle steel includes a first side and a second side; the second angle steel includes a third side and a fourth side; The second angle steel is arranged above the first angle steel in the same direction; the first side corresponds to the third side up and down, and the two are connected by sliding fit along the width direction of the first side or the third side; the second side corresponds to the fourth side up and down, and a moving distance is provided between the two; the adjusting bolt is threadedly connected to the fourth side, and has an abutting end for abutting against the outer side surface of the second side; The bottom plate is respectively connected to the second angle steel of each group of the adjustment units.

2. The height-adjustable angle steel bottom beam structure according to claim 1, characterized in that: The adjustment unit includes a fastening bolt; a first waist-shaped hole is provided on the third side; the first waist-shaped hole extends along the width direction of the third side; a first threaded hole is provided on the first side corresponding to the first waist-shaped hole; the fastening bolt is used to be inserted into the first waist-shaped hole and threadedly connected to the first threaded hole.

3. The height-adjustable angle steel bottom beam structure according to claim 1, characterized in that: The second angle steel is provided with a connecting piece; the bottom plate is connected to the connecting piece.

4. The height-adjustable angle steel bottom beam structure according to claim 3, characterized in that: A connecting bolt is provided between the base plate and the connecting member; a second threaded hole is provided on the connecting member; a second waist-shaped hole is provided on the base plate; the connecting bolt is used to be inserted into the second waist-shaped hole and threadedly connected with the second threaded hole.

5. The height-adjustable angle steel bottom beam structure according to claim 4, characterized in that: The second waist-shaped hole extends along the length direction of the first angle steel.

6. The height-adjustable angle steel bottom beam structure according to claim 1, characterized in that: A locking nut is threadedly connected to the adjusting bolt; the locking nut is used to cooperate with the outer side surface of the fourth side and lock the adjusting bolt.

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