Height adjusting support

Abstract

The utility model relates to the technical field of supports for constructional engineering, in particular to a height adjusting support which comprises an upper support plate, a height adjusting block assembly, an adjusting bolt, a middle steel plate and a lower support plate, a lower anchor rod assembly is fixedly connected to the lower support plate, and the upper support plate is fixedly connected to the middle steel plate through the upper anchor rod assembly. The bottom of the upper support plate is provided with inclined plane bosses which are symmetrical along the center of the upper support plate and are high in the middle and low in the two sides, the middle steel plate is provided with a heightening block assembly capable of linearly moving in the horizontal direction, and the heightening block assembly comprises two wedge-shaped heightening blocks matched with inclined planes on the two sides of the inclined plane bosses respectively. Vertical plates are arranged on the two sides of the bottom of the upper support plate, a plurality of height adjusting threaded holes matched with adjusting bolts are formed in the vertical plates, and the ends of the adjusting bolts abut against the outer side faces of the wedge-shaped height adjusting blocks. The height adjusting support is simple in structure and easy to manufacture and assemble; the wedge-shaped height adjusting block assembly can be pushed to move horizontally by screwing the adjusting bolt, and the adjusting process is simple, convenient and rapid.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of support for building engineering, in particular to a height-adjustable support. BACKGROUND

[0002] In bridge, building and other civil engineering, support as an important component connecting the upper structure and the lower structure, not only need to bear and transfer load, also need to have certain adjustment function to adapt to various working condition requirements. The traditional support in height adjustment often exists operation complex, adjustment range is limited and adjustment precision is insufficient etc. problem, which limits its application in complex engineering environment to some extent.

[0003] For the above problems, some supports with height adjustment function appear in the market, but these supports often have complex structure, high cost and difficult maintenance when designing and realizing height adjustment function. Especially in the height adjustment process, how to ensure the stability and precision of the support, prevent the structure from tilting or damaging due to improper adjustment, become the technical problems to be solved in the current support design field.

[0004] In addition, the existing height-adjustable support also has certain limitation in adjustment range, which is difficult to meet the needs of all engineering scenes. Especially in some engineering with high height adjustment precision requirement, the height adjustment range and precision of the traditional support often cannot meet the actual requirement, resulting in serious influence on engineering quality and safety performance.

[0005] Therefore, it is particularly important to develop a height-adjustable support with simple structure, convenient adjustment, wide adjustment range and high precision. CONTENT OF UTILITY MODEL

[0006] In order to solve the above problems, the utility model provides a height-adjustable support, which is composed of a few main components such as upper support plate, wedge-shaped height adjustment block assembly, adjusting bolt, intermediate steel plate assembly, the structure is relatively simple, easy to manufacture and assemble; by screwing the adjusting bolt, the wedge-shaped height adjustment block assembly can be pushed to move horizontally, and then the vertical displacement of the upper support plate is realized, the adjustment process is simple and fast.

[0007] The technical scheme of the utility model is as follows:

[0008] The utility model provides a height adjusting support, including upper support plate, height adjusting block assembly, adjusting bolt, intermediate steel sheet and lower support plate, is fixedly connected with lower anchor bar assembly on the lower support plate, places the intermediate steel sheet on the lower support plate, is fixedly connected in the intermediate steel sheet on upper anchor bar assembly through upper support plate, is provided with the inclined plane boss of two sides low in the middle high of along the center symmetry of upper support plate on the bottom of upper support plate, is provided with the height adjusting block assembly of being able to move in the horizontal direction straight line on the intermediate steel sheet, height adjusting block assembly includes two wedge-shaped height adjusting blocks with the inclined plane of two sides inclined plane boss cooperation respectively, is provided with the vertical plate on the bottom of two sides of upper support plate, is provided with a plurality of height adjusting screw holes with adjusting bolt cooperation on the vertical plate, and the end of adjusting bolt is on the outside of wedge-shaped height adjusting block.

[0009] Pointer is fixedly installed on the wedge-shaped height adjusting block, and a scale is fixedly arranged on the intermediate steel sheet and used with the pointer.

[0010] The bottom of the wedge-shaped height adjusting block is provided with a guide table, and the top of the intermediate steel sheet is provided with a guide groove matched with the guide table.

[0011] The upper anchor bar assembly comprises an upper anchor bar body and an upper anchor bolt, the upper anchor bar body is composed of a cylindrical upper anchor bar body I and an upper anchor bar body II, the diameter of the upper anchor bar body I is larger than that of the upper anchor bar body II, and an anchor bar threaded hole II matched with the upper anchor bolt is arranged at the end of the upper anchor bar body II; the upper support plate is composed of a flat plate I and a vertical plate, a through hole I with a diameter smaller than that of the upper anchor bar body I and larger than that of the upper anchor bar body II is arranged on the flat plate I, and the intermediate steel plate is composed of a flat plate II, and a through hole II with a diameter larger than that of the outer diameter of the threaded portion of the upper anchor bolt and smaller than that of the upper anchor bar body II is arranged on the flat plate II.

[0012] The lower support plate is composed of a flat plate III and a support table, the support table is fixed on the top of the flat plate III, a spherical cavity is arranged on the top of the support table, a spherical cap is arranged in the spherical cavity, the bottom of the spherical cap is in a spherical shape matched with the spherical cavity, and the top of the spherical cap is in a flat shape matched with the bottom of the flat plate II of the intermediate steel plate.

[0013] The top of the spherical cap is fixedly connected with a flat slide plate.

[0014] The spherical cavity is fixedly provided with a spherical slide plate.

[0015] The top of the flat slide plate or the top of the spherical slide plate is provided with a grease storage groove, and the grease storage groove is filled with lubricating grease.

[0016] Sealing rings are arranged between the outer periphery of the top flat slide plate of the spherical cap and the intermediate steel plate and between the bottom of the spherical cap and the outer periphery of the spherical cavity, respectively.

[0017] Wear-resistant strips are fixedly arranged on the two side surfaces of the guide table in contact with the guide groove.

[0018] The utility model has the advantages that:

[0019] 1. The present invention discloses a height adjustment support, which has a simple structure and is easy to adjust: the height adjustment support is composed of a few main components such as an upper support plate, a wedge-shaped height adjustment block assembly, an adjusting bolt, and an intermediate steel plate assembly. The structure is relatively simple and easy to manufacture and assemble. By turning the adjusting bolt, the wedge-shaped height adjustment block assembly can be moved horizontally, thereby realizing the vertical displacement of the upper support plate. The adjustment process is simple and quick.

[0020] 2. The present invention discloses a height adjustment support with a wide adjustment range and high precision: the height adjustment range reaches 0-20mm, which can meet the height adjustment needs of various engineering scenarios; the wedge-shaped height adjustment block assembly cooperates with the inclined boss at the bottom of the upper support plate, and by precisely controlling the horizontal movement distance of the wedge-shaped block, the vertical displacement of the upper support plate can be precisely adjusted, thereby improving the adjustment accuracy.

[0021] 3. The present invention discloses a height adjustment support, which ensures the stability and accuracy of the support: the part of the upper anchor rod assembly embedded in the middle steel plate plays a guiding role, preventing the upper support plate from tilting due to asynchrony during the movement of the wedge-shaped height adjustment block assembly, thus ensuring the stability of the support; the pointer fixedly installed on the wedge-shaped height adjustment block assembly works in conjunction with the scale on the middle steel plate to monitor and adjust the distance in real time, further improving the accuracy of the adjustment.

[0022] 4. The present invention discloses an adjustable support, which reduces maintenance costs and improves durability: a grease reservoir is provided on the top of the spherical crown assembly or the top of the spherical sliding plate and filled with grease, which can effectively reduce friction and wear and extend the service life of the support; the sealing ring prevents grease leakage and the intrusion of external impurities, further improving the durability and maintenance convenience of the support.

[0023] 5. The present invention discloses a height-adjustable support that is adaptable to complex engineering environments: the height-adjustable support is not only suitable for civil engineering fields such as bridges and buildings, but can also be widely used in other mechanical and structural systems that require height adjustment; its simple structure, convenient adjustment and high precision enable the support to adapt to various complex working conditions and improve engineering quality and safety performance. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of an adjustable support according to an embodiment of the present utility model;

[0025] Figure 2 This is a front view of an adjustable support according to an embodiment of the present utility model;

[0026] Figure 3 This is a three-dimensional structural diagram (view from below) of the upper support plate of an adjustable support according to an embodiment of the present invention.

[0027] Figure 4 A perspective structural schematic view (top view) of a wedge-shaped height adjusting block assembly of a height adjusting support according to an embodiment of the present application;

[0028] Figure 5 A perspective structural schematic view (bottom view) of a wedge-shaped height adjusting block assembly of a height adjusting support according to an embodiment of the present application;

[0029] Figure 6 A perspective structural schematic view (top view) of a middle steel plate of a height adjusting support according to an embodiment of the present application;

[0030] Figure 7 A perspective structural schematic view (bottom view) of a middle steel plate of a height adjusting support according to an embodiment of the present application;

[0031] Figure 8 A perspective structural schematic view of a planar slide plate of a height adjusting support according to an embodiment of the present application;

[0032] Figure 9 A Figure 2 An enlarged view of middle A;

[0033] Figure 10 A perspective structural schematic view of a lower support plate of a height adjusting support according to an embodiment of the present application;

[0034] Figure 11 A perspective exploded structural schematic view of a lower anchor rod assembly of a height adjusting support according to an embodiment of the present application;

[0035] Figure 12 A perspective exploded structural schematic view of a lower anchor rod assembly of a height adjusting support according to an embodiment of the present application;

[0036] The components represented by the reference numerals in the figures are as follows:

[0037] The utility model discloses: 1, upper support plate, 1a, flat plate I, 1a1, through hole I, 1b, vertical plate, 1b1, height -adjusting screw hole, 1c, inclined convex, 1d, stainless steel plate I, 2, height -adjusting block assembly, 2a, wedge height -adjusting block, 2b, pointer, 2c, guide platform, 2c1, wear -resisting strip, 2d, wedge slide plate I, 2e, wedge slide plate II, 3, adjusting bolt, 4, intermediate steel plate, 4a, flat plate II, 4a1, through hole II, 4a2, guide slot, 4b, stainless steel plate II, 4c, stainless steel plate III, 5, flat slide plate, 5a, grease tank I, 6, spherical crown, 6a, spherical stainless steel, 7, spherical slide plate, 8, lower support plate, 8a, flat plate III, 8a1, through hole III, 8b, support platform, 8b1, spherical cavity, 9, lower anchor rod assembly, 9a, lower anchor rod body, 9a1, anchor rod screw hole I, 9b, lower anchor bolt, 10, upper anchor rod assembly, 10a, upper anchor rod body I, 10b, upper anchor rod body II, 10b1, anchor rod screw hole II, 10c, upper anchor bolt, 11, scale, 12, sealing ring I, 13, sealing ring II. DETAILED DESCRIPTION

[0038] The utility model makes further detailed instructions through specific implementation together with the drawings. In different implementation, similar elements adopt the similar element mark of association. In the following implementation, many details are described to make the application be better understood. However, the person skilled in the art can easily realize that part of the features can be omitted in different cases or can be replaced by other elements, materials, methods. In some cases, some operations related to the application are not shown or described in the specification to avoid the core part of the application being overwhelmed by too much description, and the person skilled in the art can completely understand the related operation according to the description in the specification and the general technical knowledge in the art.

[0039] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate way to form various embodiments. At the same time, the steps or actions in the method description can also be sequentially adjusted or adjusted in a manner that is obvious to the person skilled in the art. Therefore, the various sequences in the specification and drawings are only for the purpose of clearly describing a certain embodiment, and do not mean that the sequence is necessary, unless otherwise stated that a certain sequence must be followed.

[0040] The serial number of the component in this paper, such as "first", "second" and the like, is only used to distinguish the described object, and has no any sequence or technical meaning. Unless otherwise specified, "connection", "coupling" in the application includes direct and indirect connection (coupling).

[0041] As Figure 1 AndFigure 2 As shown in the figure, the height-adjustable support includes an upper support plate 1, a height-adjustable block assembly 2, an adjusting bolt 3, an intermediate steel plate 4 and a lower support plate 8.

[0042] As shown in the figure, Figure 3 The upper support plate 1 is composed of a flat plate 1a, a vertical plate 1b and an inclined convex platform 1c. The flat plate 1a is provided with through holes 1a1 at its four corners. The vertical plate 1b is fixedly arranged at the two sides of the bottom of the flat plate 1a. The inclined convex platform 1c is fixedly arranged at the middle of the bottom of the flat plate 1a. The two inclined surfaces of the inclined convex platform 1c are symmetrically arranged along the center of the upper support plate 1. A stainless steel plate 1d is fixedly arranged on each of the two inclined surfaces of the inclined convex platform 1c. A plurality of height-adjustable threaded holes 1b1 are arranged on the vertical plate 1b.

[0043] As shown in the figure, Figure 4 and Figure 5 The height-adjustable block assembly 2 includes two wedge-shaped height-adjustable blocks 2a which are respectively matched with the two inclined surfaces of the inclined convex platform 1c. A wedge-shaped sliding plate 2d is fixedly arranged on the surface of each wedge-shaped height-adjustable block 2a which is in contact with the inclined convex platform 1c. A wedge-shaped sliding plate 2e is fixedly arranged on the bottom surface of each wedge-shaped height-adjustable block 2a. A pointer 2b is fixedly arranged on each wedge-shaped height-adjustable block 2a. A guide table 2c is arranged at the bottom of each wedge-shaped height-adjustable block 2a. A wear-resistant strip 2c1 is fixedly arranged on the two side surfaces of the guide table 2c.

[0044] As shown in the figure, Figure 6 and Figure 7 The intermediate steel plate 4 mainly includes a flat plate 4a. A guide groove 4a2 matched with the guide table 2c and a stainless steel plate 4b matched with the wedge-shaped sliding plate 2e are fixedly arranged on the top of the flat plate 4a. A stainless steel plate 4c is fixedly arranged on the bottom of the flat plate 4a. Through holes 4a1 are arranged at the four corners of the flat plate 4a.

[0045] As shown in the figure, Figure 1 A scale 11 matched with the pointer 2b is fixedly arranged on the intermediate steel plate 4.

[0046] As shown in the figure, Figure 10 The lower support plate 8 is composed of a flat plate 8a and a support table 8b. The support table 8b is fixedly arranged on the top of the flat plate 8a. A spherical cavity 8b1 is arranged on the top of the support table 8b. A spherical crown 6 is arranged in the spherical cavity 8b1. The bottom of the spherical crown 6 is in the shape of a sphere matched with the spherical cavity 8b1. The top of the spherical crown 6 is in the shape of a plane matched with the bottom of the flat plate 4a of the intermediate steel plate 4. A spherical stainless steel plate 6a is fixedly arranged on the bottom of the spherical crown 6. Through holes 8a1 are arranged at the four corners of the flat plate 8a.

[0047] As shown in the figure, Figure 9As shown, a flat slide plate 5 is fixed on the top of the spherical cap 6 and cooperates with the stainless steel plate Ⅲ 4c, and a spherical slide plate 7 is fixedly arranged in the spherical cavity 8b1 and cooperates with the spherical stainless steel 6a.

[0048] A grease storage groove is arranged on the top of the flat slide plate 5 or the top of the spherical slide plate 7, for example, see Figure 8 As shown, a plurality of concave spherical grease storage grooves Ⅰ 5a are arranged on the top of the flat slide plate 5, and the grease is filled in the grease storage grooves.

[0049] A sealing ring Ⅰ 12 and a sealing ring Ⅱ 13 are respectively arranged between the outer periphery of the flat slide plate 5 and the middle steel plate 4 on the top of the spherical cap 6 and between the bottom of the spherical cap 6 and the outer periphery of the spherical cavity 8b1.

[0050] The lower anchor rod assembly 9 is fixedly connected to the lower support plate 8, the middle steel plate 4 is placed on the lower support plate 8, the upper support plate 1 is fixedly connected to the middle steel plate 4 through the upper anchor rod assembly 10, the height adjusting block assembly 2 is arranged on the middle steel plate 4 and can move linearly in the horizontal direction, and the end of the adjusting bolt 3 is on the outer side surface of the wedge-shaped height adjusting block 2a.

[0051] As shown in the figure, Figure 11 The lower anchor rod assembly 9 includes a lower anchor rod body 9a and a lower anchor bolt 9b, an anchor rod threaded hole Ⅰ 9a1 is arranged at the end of the lower anchor rod body 9a and cooperates with the lower anchor bolt 9b, the outer diameter of the lower anchor rod body 9a is greater than the diameter of the through hole Ⅲ 8a1, the outer diameter of the lower anchor bolt 9b is smaller than the diameter of the through hole Ⅲ 8a1, the lower anchor bolt 9b is threadedly connected with the anchor rod threaded hole Ⅰ 9a1 after passing through the through hole Ⅲ 8a1, so that the lower anchor rod assembly 9 is fixed on the lower support plate 8, and the lower anchor rod body 9a is on the lower side of the lower support plate 8.

[0052] As shown in the figure, Figure 12 The upper anchor rod assembly 10 includes an upper anchor rod body and an upper anchor bolt 10c, the upper anchor rod body is composed of a cylindrical upper anchor rod body Ⅰ 10a and an upper anchor rod body Ⅱ 10b, the diameter of the upper anchor rod body Ⅰ 10a is greater than the diameter of the upper anchor rod body Ⅱ 10b, and an anchor rod threaded hole Ⅱ 10b1 is arranged at the end of the upper anchor rod body Ⅱ 10b and cooperates with the upper anchor bolt 10c; the upper support plate 1 is composed of a flat plate Ⅰ 1a and a vertical plate 1b, a through hole Ⅰ 1a1 is arranged on the flat plate Ⅰ 1a and has a diameter smaller than the diameter of the upper anchor rod body Ⅰ 10a and greater than the diameter of the upper anchor rod body Ⅱ 10b, the middle steel plate 4 is composed of a flat plate Ⅱ 4a, a through hole Ⅱ 4a1 is arranged on the flat plate Ⅱ 4a and has a diameter greater than the threaded outer diameter of the upper anchor bolt 10c and smaller than the diameter of the upper anchor rod body Ⅱ 10b, and preferably, the upper anchor rod body Ⅱ 10b and the through hole Ⅱ 4a1 are clearance fit.

[0053] The height adjusting support of the embodiment utilizes the horizontal movement of the wedge-shaped block (i.e. the wedge-shaped height adjusting block 2a) with slope to drive the upper support plate 1 with slope to vertically displace, so as to realize the function of adjusting the height of the support.

[0054] The height adjustment steps are as follows:

[0055] When the support is installed at the factory height and used for a period of time, if it is necessary to adjust the height of the support, first loosen the upper anchor bolt (i.e. upper anchor bolt 10c) to ensure that the distance between the lower surface of the upper anchor bolt nut and the lower surface of the middle steel plate 4 is the desired adjustment distance. This step is to ensure that the upper support plate 1 can freely lift with the movement of the wedge-shaped height adjustment block 2a in the subsequent adjustment process. Then, use a jack to lift the beam to ensure that the support is not subjected to vertical load.

[0056] Symmetrically tighten the adjustment bolts 3 on both sides of the support to push the wedge-shaped height adjustment block assembly 2 along the guide groove 4a2 on the middle steel plate 4 to make a feeding movement to the opposite side. This step is the key step of the height adjustment. By tightening the adjustment bolts 3, the wedge-shaped height adjustment block 2a can be pushed to move horizontally along the slope of the slope boss 1c, thereby lifting the upper support plate 1. When tightening the adjustment bolts 3, the change in the scale of the scale 11 on the middle steel plate 4 should be noted at all times. The scale 11 is used in conjunction with the pointer 2b to visually display the movement distance and position of the wedge-shaped height adjustment block 2a, thereby ensuring that the wedge-shaped height adjustment blocks 2a on both sides move the same distance and maintain the horizontal state of the upper support plate 1, avoiding the occurrence of tilting problems.

[0057] When the wedge-shaped height adjustment block 2a moves horizontally along the slope of the slope boss 1c, it will gradually push the upper support plate 1 to lift due to its matching shape with the slope boss 1c. At the same time, since the upper anchor rod body in the upper anchor rod assembly 10 is embedded in a part of the middle steel plate 4 to act as a guide, it can further ensure the stability and horizontal state of the upper support plate 1 during the lifting process. When the specified height is adjusted, the upper anchor bolt (i.e. upper anchor bolt 10c) should be tightened first to fix the upper support plate 1 at the current height, and then the adjustment bolts 3 on both sides should be tightened to complete the height adjustment of the support.

[0058] Through the above steps, the height adjustment support of the present embodiment can achieve precise adjustment of the height of the support, meeting the needs of different use scenarios. At the same time, it is simple in structure, easy to operate, stable and reliable, and has a wide application prospect.

[0059] In addition, it is worth noting that in actual application, the height adjustment range of the height adjustment support is limited by the movement distance of the wedge-shaped height adjustment block 2a and the slope of the slope boss 1c. Therefore, when designing, appropriate sizes and shapes of the wedge-shaped height adjustment block 2a and the slope boss 1c should be selected according to the specific use requirements to ensure that the adjustment range of the height adjustment support meets the requirements. At the same time, attention should be paid to regular inspection and maintenance during use to ensure the normal operation and service life of the support.

[0060] In summary, the embodiment provides a height-adjusting support and a height-adjusting method thereof, which are simple in structure, convenient to operate and stable and reliable.

[0061] The utility model is described above by using specific examples, which is only used for helping understanding the utility model and does not limit the utility model. According to the idea of the utility model, a plurality of simple deductions, deformations or substitutions can be made by the skilled in the art to which the utility model belongs.

Claims

1. A height adjustment pedestal, characterized in that, The utility model provides a height adjusting device for anchor rod, including upper support plate (1), height adjusting block assembly (2), adjusting bolt (3), intermediate steel sheet (4) and lower support plate (8), and lower anchor rod assembly (9) is fixedly connected on lower support plate (8), intermediate steel sheet (4) is placed on lower support plate (8), upper support plate (1) is fixedly connected on intermediate steel sheet (4) through upper anchor rod assembly (10), the bottom of upper support plate (1) is provided with the inclined surface boss (1c) of two sides low of middle height along the center symmetry of upper support plate (1), the height adjusting block assembly (2) of being able to move in straight line along horizontal direction is provided on intermediate steel sheet (4), height adjusting block assembly (2) includes two wedge-shaped height adjusting blocks (2a) respectively with the slope of both sides slope of inclined surface boss (1c) cooperation, the vertical plate (1b) is set up in the bottom of both sides of upper support plate (1), a plurality of height adjusting screw holes (1b1) are set up on vertical plate (1b) with adjusting bolt (3) cooperation, the end of adjusting bolt (3) is on the outside of wedge-shaped height adjusting block (2a).

2. A height adjustment foot according to claim 1, wherein Pointer (2b) is fixedly installed on wedge-shaped height adjusting block (2a), and scale (11) is fixedly arranged on intermediate steel sheet (4) and used with pointer (2b).

3. A height adjustment foot according to claim 1, wherein The bottom of wedge-shaped height adjusting block (2a) is provided with guide table (2c), and the top of intermediate steel sheet (4) is provided with guide groove (4a2) matched with guide table (2c).

4. A height adjustment foot according to claim 1, wherein The upper anchor rod assembly (10) includes an upper anchor rod body and an upper anchor bolt (10c), the upper anchor rod body is composed of a cylindrical upper anchor rod body I (10a) and an upper anchor rod body II (10b), the diameter of the upper anchor rod body I (10a) is larger than the diameter of the upper anchor rod body II (10b), and an anchor rod threaded hole II (10b1) matched with the upper anchor bolt (10c) is arranged at the end of the upper anchor rod body II (10b); the upper support plate (1) is composed of a flat plate I (1a) and a vertical plate (1b), a through hole I (1a1) with a diameter smaller than the diameter of the upper anchor rod body I (10a) and larger than the diameter of the upper anchor rod body II (10b) is arranged on the flat plate I (1a), and the intermediate steel sheet (4) is composed of a flat plate II (4a), a through hole II (4a1) with a diameter larger than the threaded outer diameter of the upper anchor bolt (10c) and smaller than the diameter of the upper anchor rod body II (10b) is arranged on the flat plate II (4a).

5. A height adjustment foot according to claim 1, wherein The lower support plate (8) is composed of a flat plate III (8a) and a support table (8b), the support table (8b) is fixed on the top of the flat plate III (8a), a spherical cavity (8b1) is arranged on the top of the support table (8b), a spherical crown (6) is installed in the spherical cavity (8b1), the bottom of the spherical crown (6) is a spherical surface matched with the spherical cavity (8b1), and the top of the spherical crown (6) is a flat surface matched with the bottom of the flat plate II (4a) of the intermediate steel sheet (4).

6. A height adjustment foot according to claim 5, wherein A flat slide plate (5) is fixed on the top of the spherical crown (6).

7. A height adjustment foot according to claim 5, wherein A spherical slide plate (7) is fixedly arranged in the spherical cavity (8b1).

8. A height adjustment foot according to claim 6 or 7, wherein, A grease storage groove is arranged on the top of the flat slide plate (5) or the top of the spherical slide plate (7), and the grease storage groove is filled with lubricating grease.

9. A height adjustment foot according to claim 8, wherein Sealing rings are arranged between the outer periphery of the top plane slide plate (5) of the spherical cap (6) and the middle steel plate (4) and between the bottom of the spherical cap (6) and the outer periphery of the spherical cavity (8b1) respectively.

10. A height adjustment foot according to claim 3, wherein, Wear-resistant strips (2c1) are fixed to the two sides of the guide table (2c) in contact with the guide groove (4a2).

Images