Multistage leveling device

Abstract

The utility model discloses a multi-stage leveling device, which belongs to the field of industrial equipment installation and building structure test, and comprises two leveling plates which are in wedge structures and have the same inclination angle, the two leveling plates are mutually inverted, and the two inclined surfaces are tightly arranged; the first leveling plate and the second leveling plate are provided with multi-stage leveling assemblies used for adjusting the distance between the first leveling plate and the second leveling plate. Wherein the multi-stage leveling assembly comprises at least two leveling units with different adjusting precision; in the leveling process, coarse adjustment is conducted on the first leveling plate and the second leveling plate through the leveling unit low in precision, then fine adjustment is conducted through the leveling unit high in precision, and therefore the overall leveling precision is improved. Absolute average stress can be achieved through fine adjustment, and use and test results are guaranteed; the device is simple in structure and principle and convenient to disassemble, assemble, operate and maintain, and the leveling precision is guaranteed by adopting a multi-stage adjusting mode.

Description

Technical Field

[0001] The utility model belongs to the field of industrial equipment installation and building structure test, specifically relates to the technical field of equipment installation and building structure test leveling, and in particular relates to a multi-stage leveling device. Background Art

[0002] In order to meet the stringent force balance requirements in the current equipment installation and structural testing field, we have to face a complex and critical problem: how to ensure that the vertical load-bearing components of each support and structural specimen of the equipment can achieve a uniform and stable force state under highly precise and diverse test conditions. This requirement is not only related to the accuracy and reliability of the test data, but also directly affects the safe operation and long-term performance evaluation of the equipment.

[0003] With the continuous advancement of engineering technology, especially in the fields of super high-rise buildings, large bridges, complex mechanical equipment, etc., the requirements for structural safety are becoming increasingly stringent. As an important means of evaluating structural performance, the accuracy and controllability of structural pushover tests and dynamic tests have become the focus of research. However, due to the unavoidable material properties, processing accuracy limitations and installation errors in the construction process, it is often difficult for each supporting component to achieve a theoretical perfect balance when actually subjected to force. This unbalanced state will directly affect the accuracy of the test data and the normal operation of the equipment, and may even mislead engineering design and decision-making. In response to this problem, the existing technology has taken a series of measures, such as inserting an adjustment pad or rotating an adjustment screw, but these methods have significant limitations in practical applications. Specifically, although the pad adjustment method is simple and easy, its thickness is fixed and the adjustment range is limited, which makes it difficult to adapt to complex and changeable test requirements. In addition, the insertion and removal of the pad during construction may introduce new error sources, affecting the overall adjustment effect. Although the adjustment screw method can provide a certain degree of adjustment flexibility, its adjustment accuracy is limited by the screw pitch, making it difficult to achieve fine adjustment. In addition, the screw itself works as a force-bearing component, and its installation accuracy, stability and long-term reliability may become potential problems.

[0004] It can be seen that the existing leveling method is difficult to achieve force balance due to the limited leveling accuracy, which affects the use and test results. Utility Model Content

[0005] The utility model provides a multi-stage leveling device to solve the technical problem that due to the limited leveling accuracy in the existing leveling method, it is difficult to achieve force balance, thereby affecting the use and test results.

[0006] In order to achieve the above purpose, the utility model adopts the following technical contents:

[0007] A multi-stage leveling device comprises a first leveling plate and a second leveling plate;

[0008] The first adjustment plate and the second adjustment plate are both wedge structures, and the inclination angles of the two are the same;

[0009] The top surface of the first adjustment plate is a plane, and the bottom surface is an inclined surface; the top surface of the second adjustment plate is an inclined surface, and the bottom surface is a plane; the bottom surface of the first adjustment plate is closely attached to the top surface of the second adjustment plate;

[0010] A multi-stage leveling component is inserted in the horizontal direction of the first leveling plate and the second leveling plate, and the multi-stage leveling component is used to adjust the distance between the first leveling plate and the second leveling plate;

[0011] The multi-stage leveling assembly includes at least two leveling units, and each leveling unit has a different adjustment accuracy.

[0012] Further, the multi-stage leveling assembly includes a first leveling unit and a second leveling unit;

[0013] The first adjustment plate has a first through hole at one end along the horizontal direction and a fine-tuning bolt hole at the other end;

[0014] A coarse adjustment bolt hole is provided at one end of the second adjustment plate in the horizontal direction, and a second through hole is provided at the other end;

[0015] The first leveling unit includes a fine-tuning screw rod, the fine-tuning screw rod is passed through the second through hole and is threadedly connected to the fine-tuning bolt hole;

[0016] The second leveling unit includes a coarse adjustment screw rod, which is passed through the first through hole and is threadedly connected to the coarse adjustment bolt hole.

[0017] Furthermore, the fine-adjustment screw and the coarse-adjustment screw are both sleeved with a fastening nut and a fixing nut.

[0018] Furthermore, fastening components for limiting axial displacement of the first leveling plate and the second leveling plate are provided on both sides of the first leveling unit and the second leveling unit.

[0019] Furthermore, the fastening assembly includes a fastening screw; the fastening screw is inserted into a horizontal hole groove opened at one end of the first adjusting plate, and is threadedly fixed to a fastening bolt hole opened at the other end of the second adjusting plate; the fastening screw is inserted into a horizontal hole groove opened at one end of the second adjusting plate, and is threadedly fixed to a fastening bolt hole opened at the other end of the first adjusting plate.

[0020] Furthermore, the pitch of the fine-tuning screw is 0.2 mm, and the pitch of the coarse-tuning screw is 1 mm.

[0021] Furthermore, a vertically downward guard plate is provided at one end of the first adjustment plate in the horizontal direction; a vertically upward guard plate is provided at one end of the second adjustment plate away from the first adjustment plate, and vertically upward guard plates are provided on both side walls.

[0022] Furthermore, a ruler is provided on the side wall of the first adjustment plate, and a pointer pointing to the ruler is provided on the side wall of the second adjustment plate; the ruler and the pointer cooperate to record the adjustment parameters.

[0023] Furthermore, the bottom surface of the first adjustment plate and the top surface of the second adjustment plate are both polished.

[0024] Furthermore, the first adjustment plate and the second adjustment plate are both made of steel.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] The utility model provides a multi-stage leveling device, which includes two leveling plates with wedge structures and the same inclination angle, which are inverted with each other and the two inclined surfaces are closely arranged; a multi-stage leveling component for adjusting the distance between the first and second leveling plates is arranged; wherein the multi-stage leveling component includes at least two leveling units with different adjustment precisions; in the leveling process, the first and second leveling plates are roughly adjusted by the leveling unit with low precision, and then the leveling unit with high precision is used to perform fine adjustment, thereby improving the overall leveling precision; the use of this device can quickly correct the non-uniform stress state of the equipment support and the vertical components of the structure, and can achieve absolute average stress through fine adjustment, thereby ensuring the use and test results; the structure and principle of this device are simple, and it is easy to disassemble and operate, and the multi-stage adjustment method is adopted to ensure the leveling precision, and it has good promotion and application value.

[0027] Preferably, in the present invention, the multi-stage leveling assembly includes a first leveling unit responsible for fine adjustment and a second leveling unit responsible for coarse adjustment; high-precision and low-precision adjustments are respectively achieved through the fine adjustment screw and the coarse adjustment screw, thereby improving the flexibility and accuracy of leveling.

[0028] Further preferably, in the present invention, the tightening nut and the fixing nut ensure the stability and reliability of the screw during the adjustment process, prevent the screw from loosening during the adjustment process, and improve the stability of the overall structure.

[0029] Preferably, in the present invention, the axial displacement of the first leveling plate and the second leveling plate is limited by the fastening assembly, thereby further enhancing the stability and safety of the upper structure or equipment after the leveling is completed, and preventing accidental sliding or dislocation.

[0030] Preferably, in the present invention, the fine-adjustment screw and the coarse-adjustment screw are designed with different pitches (0.2 mm and 1 mm), respectively, which meets the leveling needs of different precision requirements and improves the flexibility and efficiency of leveling.

[0031] Preferably, in the present invention, the provision of the guard plate protects the structure of the leveling device, prevents external factors from interfering with the leveling process, and also increases safety during operation.

[0032] Preferably, in the present invention, the coordinated use of the ruler and the pointer provides an intuitive visual reference for the leveling process, which facilitates the user to accurately record and adjust, thereby improving the accuracy and convenience of leveling.

[0033] Preferably, in the present invention, the bottom surface of the first leveling plate and the top surface of the second leveling plate are polished, which reduces the friction and wear of the contact surfaces and improves the smoothness and precision of the leveling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the structure of a multi-stage leveling device provided in an embodiment of the utility model;

[0035] Figure 2 A front view of a first leveling plate of a multi-stage leveling device provided in an embodiment of the utility model;

[0036] Figure 3 A top view of a first adjustment plate provided in an embodiment of the utility model;

[0037] Figure 4 for Figure 3 Sectional view along Ⅰ-Ⅰ axis;

[0038] Figure 5 A left side view of a first adjustment plate provided in an embodiment of the utility model;

[0039] Figure 6 A right side view of a first adjustment plate provided in an embodiment of the utility model;

[0040] Figure 7 A front view of a second leveling plate of a multi-stage leveling device provided in an embodiment of the utility model;

[0041] Figure 8 A top view of a second adjustment plate provided in an embodiment of the utility model;

[0042] Fig. 9 for Figure 8 Middle II-II section view;

[0043] Fig.10 A left view of a second adjustment plate provided in an embodiment of the utility model;

[0044] Fig.11 A right side view of the second adjustment plate provided by the embodiment of the utility model;

[0045] Fig.12 Schematic diagram of application scenarios of the structural schematic diagram of a multi-stage leveling device provided in an embodiment of the utility model; wherein (a) is a schematic diagram of the elevation of the AC axis of the structure; and (b) is a schematic diagram of the elevation of the 1-2 axis of the structure.

[0046] Reference numerals:

[0047] First adjustment plate-1; second adjustment plate-2; fine adjustment screw-3; fine adjustment nut-4; fixing nut-5; fastening nut-6; coarse adjustment screw-7; vertical hole slot-8; scale-9; pointer-10; vertical bolt hole-11; coarse adjustment nut-12; coarse adjustment bolt hole-13; fastening bolt hole-14; horizontal hole slot-15; guard plate-16; fastening screw-17; fine adjustment bolt hole-18;

[0048] Structure-100; multi-stage leveling device-101; mounting table-102. DETAILED DESCRIPTION

[0049] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the following specific embodiments further describe the utility model in detail. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0050] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0053] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0054] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0055] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0056] The utility model is further described in detail below with reference to the accompanying drawings:

[0057] Example 1

[0058] Combined with the problem mentioned in the background technology, the problem that the unbalanced state of the structural parts will directly affect the accuracy of the test data has been directly addressed in the prior art. Although a series of measures have been taken, such as inserting an adjustment pad or rotating an adjustment screw, these methods have significant limitations in practical applications. Specifically, although the pad adjustment method is simple and easy to use, its thickness is fixed and the adjustment range is limited, which makes it difficult to adapt to complex and changeable test requirements. In addition, the insertion and removal of the pad during construction may introduce new error sources, affecting the overall adjustment effect. Although the adjustment screw method can provide a certain degree of adjustment flexibility, its adjustment accuracy is limited by the pitch of the screw, making it difficult to achieve fine adjustment. Moreover, the screw itself participates in the work as a force-bearing component, and its installation accuracy, stability and long-term reliability may all become potential problems. Therefore, developing a more efficient, accurate and adaptable adjustment mechanism to achieve uniform force on equipment supports and vertical load-bearing components of the structure has become a technical problem that needs to be solved urgently. This solution needs to comprehensively consider multiple factors such as adjustment flexibility, precision, construction convenience and long-term stability. It aims to improve the controllability of the test process and the reliability of the results through technological innovation, and provide a more solid scientific basis for engineering design and construction.

[0059] In order to achieve the above-mentioned purpose and solve the above-mentioned problems, the present embodiment provides a multi-stage leveling device. Based on the multi-stage leveling concept, the device can better and faster realize the quantitative leveling of equipment installation and structural testing, and the adjustment device does not affect the equipment operation and test results. It can be widely used in the fields of industrial equipment installation, structural push-over and dynamic testing.

[0060] This embodiment provides a multi-stage leveling device, including two key components, namely a first leveling plate 1 and a second leveling plate 2, also called an upper leveling plate and a lower leveling plate, and the specific structure is as follows:

[0061] like Figure 1 As shown, the first adjustment plate 1 is in the shape of a wedge, with a flat top and a matching inclined bottom. This design facilitates close fit with the second adjustment plate to form a stable adjustment base.

[0062] like Figure 7 As shown, the second adjustment plate 2 is also a wedge structure, with an inclined top and a flat bottom, which fits tightly with the bottom of the first adjustment plate to form an adjustment space.

[0063] A multi-stage leveling component for adjusting the distance between the first leveling plate 1 and the second leveling plate 2 is arranged in the horizontal direction thereof. Due to the wedge-shaped structural design of the first leveling plate 1 and the second leveling plate 2, when the two are close to each other, the leveling height increases, and when the two are far away from each other, the leveling height decreases.

[0064] The multi-stage leveling device is composed of at least two leveling units, and each unit has different adjustment accuracy to meet different adjustment requirements from coarse to fine.

[0065] It should be noted that, in the present embodiment, the multi-stage leveling device adopts two leveling units; three, four or even more leveling units may also be adopted, and the adjustment accuracy of each leveling unit is different to meet the requirements of different working conditions; in this way, adjustment from coarse to fine can be achieved, and the range of adjustment accuracy is expanded, that is, the setting of multiple leveling units can meet the step-by-step adjustment requirements from coarse adjustment to fine adjustment.

[0066] like Figure 1 , Figure 3 and Figure 8 As shown, in this embodiment, the multi-stage leveling device includes a first leveling unit responsible for fine adjustment and a second leveling unit responsible for coarse adjustment, and the specific structure is as follows:

[0067] The first leveling unit includes a fine-tuning screw 3, which passes through the second through hole of the second leveling plate 2 (a total of three horizontal hole slots 15 are opened at one end of the second leveling plate 2, and the second through hole is a horizontal hole slot 15 located in the middle), and is precisely threadedly connected to the fine-tuning bolt hole 18 on the first leveling plate for finely adjusting the distance between the two plates.

[0068] The second leveling unit includes a coarse adjustment screw 7, which passes through the first through hole of the first leveling plate 1 (three horizontal hole slots 15 are opened at one end of the first leveling plate 1, and the first through hole is located in the middle horizontal hole slot 15), and is connected to the coarse adjustment bolt hole 13 on the second leveling plate 2 to achieve a relatively large range of preliminary adjustment.

[0069] Here, the pitch of the fine-tuning screw 3 is 0.2 mm, while the pitch of the coarse-tuning screw 7 is 1 mm; during the leveling process, the coarse-tuning screw 7 is first used for coarse adjustment (pre-adjustment), and then the fine-tuning screw 3 is used for precise adjustment, and the requirement of achieving absolute average force is met through multi-stage adjustment (two-stage adjustment).

[0070] Combination Figure 3 and Figure 8 In this embodiment, both the fine-tuning screw 3 and the coarse-tuning screw 7 are equipped with a fastening nut 6 and a fixing nut 5 to ensure the smooth implementation of the adjustment process; by rotating the adjusting nut (fine-tuning nut 4 or coarse-tuning nut 12), the adjusting screw (fine-tuning screw 3 or coarse-tuning screw 7) is forced to retract, thereby pulling the adjustment plate, and then tightening the fastening nut 6 after the adjustment is completed.

[0071] In this embodiment, in order to prevent the adjustment plate from axial displacement after the adjustment is completed, a fastening assembly is specially designed, in which a fastening screw 17 is inserted into the horizontal hole groove 15, and multiple fastening screws 17 are placed on the left and right sides of the fine-adjustment screw 3 and the coarse-adjustment screw 7, and are threadedly fixed to the fastening bolt holes 14 of the opposite adjustment plate through nuts, thereby preventing the fastening nuts 6 on the adjustment screws (fine-adjustment screw 3 and coarse-adjustment screw 7) from failing or having insufficient load-bearing capacity.

[0072] Combination Figure 2 , Figure 4 , Figure 8 and Fig. 9 As shown, in this embodiment, a vertically downward guard plate 16 is provided at one end of the first leveling plate 1, and a vertically upward guard plate 16 is provided at one end and both sides of the second leveling plate 2 away from the first leveling plate 1, so as to enhance the stability of the overall structure; and the provision of the guard plate 16 protects the structure of the leveling device, prevents external factors from interfering with the leveling process, and also increases safety during operation.

[0073] like Figure 1 As shown, in this embodiment, in order to facilitate recording and monitoring of the adjustment process, a scale 9 is provided on the side wall of the first adjustment plate 1, and a pointer 10 pointing to the scale 9 is provided on the second adjustment plate 2. The two are used together to accurately record the adjustment parameters.

[0074] like Figures 1 to 11 As shown, the following is a more specific description of the details of this embodiment in conjunction with the accompanying drawings:

[0075] The first adjustment plate 1 and the second adjustment plate 2 are both steel components, and both are wedge-shaped as a whole.

[0076] The upper surface of the first adjustment plate 1 is a plane, and the lower surface is an inclined surface, and the lower surface is finely planed. The first adjustment plate 1 has two vertical installation hole grooves.

[0077] The left side of the first adjustment plate 1 is extended downward by a certain length in a knife handle shape to form a guard plate 16 structure, and three horizontal opening grooves 15 are formed on the left side.

[0078] A fine-tuning bolt hole 18 is horizontally formed in the middle of the right side of the first adjustment plate 1 , and fastening bolt holes 14 are horizontally formed on both sides of the fine-tuning bolt hole 18 .

[0079] The upper surface of the second adjustment plate 2 is an inclined surface and is planed, and the lower surface is a plane. The upper and lower surfaces of the second adjustment plate 2 are provided with through vertical bolt holes.

[0080] Guard plates 16 of a certain thickness are reserved on the front, rear and right sides of the upper surface of the second leveling plate 2 .

[0081] A coarse adjustment bolt hole 13 is horizontally opened in the middle of the left side of the second adjustment plate 2, and fastening bolt holes 14 are horizontally opened on both sides of the coarse adjustment bolt hole 13. Three horizontal hole grooves 15 are opened on the right side guard plate 16 of the first adjustment plate 1.

[0082] A scale 9 is provided on the front side of the first adjustment plate 1 , and a pointer 10 is provided on the front side of the second adjustment plate 2 .

[0083] One end of the fine-tuning bolt is a fixing nut 5, and the other end is a fine-tuning screw 3. The screw pitch of the fine-tuning screw 3 is 0.2 mm. The fine-tuning screw 3 is pre-set with a fine-tuning nut 4 and a fastening nut 6.

[0084] One end of the coarse adjustment bolt is a fixed nut 5, and the other end is a coarse adjustment screw 7. The screw pitch of the coarse adjustment screw 7 is 1mm. The coarse adjustment screw 7 is pre-set with a coarse adjustment nut 12 and a fastening nut 6.

[0085] One end of the fixing bolt is a fixing nut 5 , and the other end is a fastening screw rod 17 , on which two fastening nuts 6 are pre-set.

[0086] The first adjustment plate 1 is placed in the guard plate 16 of the second adjustment plate 2 , and the oblique bottom surface of the first adjustment plate 1 is in close contact with the oblique top surface of the second adjustment plate 2 .

[0087] Combination Figure 5 , Figure 6 , Fig.10 and Fig.11 As shown, the fine adjustment screw 3 passes through the horizontal hole slot 15 in the middle of the right side of the second adjustment plate 2 and is tightened into the fine adjustment bolt hole 18 in the middle of the right side of the first adjustment plate 1. The fastening screw 17 passes through the horizontal hole slots 15 on both sides of the right side of the second adjustment plate 2 and is tightened into the fastening bolt hole 14 on the right side of the first adjustment plate 1. The coarse adjustment screw 7 passes through the horizontal hole slot 15 in the middle of the left side of the first adjustment plate 1 and is tightened into the coarse adjustment bolt hole 13 in the middle of the left side of the second adjustment plate 2. The fastening screw 17 passes through the horizontal hole slots 15 on both sides of the left side of the first adjustment plate 1 and is tightened into the fastening bolt hole 14 on the left side of the second adjustment plate 2.

[0088] like Figure 3 and Fig. 9 As shown, in order to meet the installation and fixation of the structure, vertical hole grooves 8 are opened on the left and right sides of the first adjustment plate 1, and a number of vertical bolt holes 11 are opened on the corresponding sides of the second adjustment plate 2, and the structure is installed and fixed by bolts; in this way, the first adjustment plate 1 is placed in the guard plate 16 of the second adjustment plate 2, and the two adjustment plates are horizontally staggered by a certain position in advance to ensure the adjustment stroke, and then all bolts are tightened; the upper structure or equipment is inserted into the vertical hole grooves 8 on the first adjustment plate 1 and the vertical bolt holes 11 of the second adjustment plate 2 through screws, and fixed to the table top or foundation.

[0089] This embodiment provides a multi-stage leveling device, and the specific working principle is as follows:

[0090] First, when the leveling device needs to be raised or the load needs to be increased, loosen all the fastening bolts, turn the coarse adjustment bolt forward until the load is close to the balanced position, then tighten the fine adjustment bolt and loosen the coarse adjustment bolt, continue to turn the fine adjustment nut forward to make fine adjustments until the balance requirement is reached, and then tighten all the bolts; record the scale data during the whole process as the adjustment parameter.

[0091] Second, when the leveling device needs to lower or reduce the load, loosen all fastening bolts and fine-adjustment bolts, turn the coarse-adjustment bolt back until the load is close to the balanced position, then tighten the fine-adjustment bolt and loosen the coarse-adjustment bolt, and then turn the fine-adjustment bolt back for fine-tuning. Under the action of the deadweight load, the two adjustment plates will move away from each other in opposite directions until the balance requirement is reached, and then tighten all bolts; record the scale data during the whole process as the adjustment parameter.

[0092] Example 2

[0093] like Fig.12 As shown, specifically Fig.12 As shown in (a) and (b) in the figure, this embodiment provides a specific application scenario of a multi-stage leveling device. A multi-stage leveling device 101 is placed at each bottom corner of the structure 100 to be leveled: the multi-stage leveling device 101 is used to achieve uniform force on the structure 100 to ensure its use and test results; finally, the structure 100 and the multi-stage leveling device 101 are fixed as a whole on the installation table 102 to complete the fixing preparation work before use or testing.

[0094] The multi-stage leveling device provided in this embodiment has the following advantages:

[0095] First, through coarse and fine adjustments, the non-uniform stress state of equipment supports and structural vertical components can be quickly corrected, and through fine adjustments, they can achieve absolute average stress.

[0096] Second, after the adjustment is completed, the leveling device is tightened by bolts to reach a rigid state, which has no effect on the equipment operation and structural test results.

[0097] Third, the quantification of leveling can be achieved through the scale on the first leveling plate and the pointer on the second leveling plate.

[0098] It can be seen that this scheme is simple, easy to make and construct, and can achieve quantitative leveling of equipment installation and structural testing better and faster. The adjustment device does not affect the equipment operation and test results. It can be widely used in industrial equipment installation and structural pushover and dynamic testing and other fields.

[0099] In summary, the utility model provides a multi-stage leveling device, which has the following advantages compared with existing leveling measures:

[0100] First, high precision and flexibility: By designing a multi-stage leveling component that includes at least two leveling units (fine adjustment and coarse adjustment), the device can achieve high-precision fine adjustment while ensuring a wide range of coarse adjustment, meeting the diverse needs for leveling accuracy in different scenarios.

[0101] Second, stability and reliability: The first adjustment plate and the second adjustment plate adopt a wedge structure and are set closely together, which not only ensures the stability of the structure, but also effectively limits the axial displacement of the adjustment plate through a multi-stage fastening mechanism (including fastening nuts and fastening screws), further improving the reliability and durability of the device.

[0102] Third, ease of operation: The device has a reasonable structure design and clear layout of components, which is convenient for users to install, adjust and maintain. In particular, through the combination of ruler and pointer, users can intuitively read and record adjustment parameters, simplifying the leveling process and improving work efficiency.

[0103] Fourth, wide applicability: The device is suitable for a variety of occasions that require high-precision leveling, such as precision machining, optical instrument installation, building structure adjustment, etc., and has broad application prospects.

[0104] Fifth, safety and protection: The device is equipped with protective plates at key locations to effectively prevent damage caused by improper operation or external factors. At the same time, the polishing treatment on the surface of the leveling plate reduces friction, reduces resistance during the adjustment process, and protects the device itself and the structure being leveled from damage.

[0105] Sixth, economy and environmental protection: By optimizing the design and material selection, the device not only ensures performance, but also takes into account economy and environmental protection, reduces production costs and energy consumption during use, and complies with the concept of sustainable development.

[0106] The above embodiment is only one of the implementation methods that can realize the technical solution of the utility model. The scope of protection required by the utility model is not limited only to this embodiment, but also includes within the technical scope disclosed by the utility model, any changes, replacements and other implementation methods that can be easily thought of by any technician familiar with the technical field.

Claims

1. A multi-stage leveling device, characterized in that: It comprises a first adjustment plate (1) and a second adjustment plate (2); The first adjustment plate (1) and the second adjustment plate (2) are both wedge structures, and the inclination angles of the two are the same; The top surface of the first adjustment plate (1) is a plane, and the bottom surface is an inclined surface; the top surface of the second adjustment plate (2) is an inclined surface, and the bottom surface is a plane; the bottom surface of the first adjustment plate (1) and the top surface of the second adjustment plate (2) are arranged in close contact; A multi-stage leveling component is inserted in the horizontal direction of the first leveling plate (1) and the second leveling plate (2), and the multi-stage leveling component is used to adjust the distance between the first leveling plate (1) and the second leveling plate (2); The multi-stage leveling assembly includes at least two leveling units, and each leveling unit has a different adjustment accuracy.

2. A multi-stage leveling device according to claim 1, characterized in that: The multi-stage leveling assembly includes a first leveling unit and a second leveling unit; The first adjustment plate (1) has a first through hole at one end along the horizontal direction and a fine-tuning bolt hole (18) at the other end; The second adjustment plate (2) is provided with a coarse adjustment bolt hole (13) at one end along the horizontal direction, and a second through hole at the other end; The first leveling unit comprises a fine-tuning screw (3), the fine-tuning screw (3) is passed through the second through hole and is threadedly connected to the fine-tuning bolt hole (18); The second leveling unit comprises a coarse adjustment screw rod (7), the coarse adjustment screw rod (7) is passed through the first through hole and is threadedly connected to the coarse adjustment bolt hole (13).

3. A multi-stage leveling device according to claim 2, characterized in that: The fine adjustment screw rod (3) and the coarse adjustment screw rod (7) are both sleeved with a fastening nut (6) and a fixing nut (5).

4. A multi-stage leveling device according to claim 2, characterized in that: Both sides of the first leveling unit and the second leveling unit are provided with fastening components for limiting the axial displacement of the first leveling plate (1) and the second leveling plate (2).

5. A multi-stage leveling device according to claim 4, characterized in that: The fastening assembly comprises a fastening screw (17); the fastening screw (17) is inserted into a horizontal hole groove (15) opened at one end of the first adjustment plate (1), and is threadedly fixed to a fastening bolt hole (14) opened at the other end of the second adjustment plate (2); the fastening screw (17) is inserted into a horizontal hole groove (15) opened at one end of the second adjustment plate (2), and is threadedly fixed to a fastening bolt hole (14) opened at the other end of the first adjustment plate (1).

6. A multi-stage leveling device according to claim 2, characterized in that: The pitch of the fine-adjustment screw (3) is 0.2 mm, and the pitch of the coarse-adjustment screw (7) is 1 mm.

7. The multi-stage leveling device according to claim 1, characterized in that: A vertically downward guard plate (16) is provided at one end of the first adjustment plate (1) in the horizontal direction; a vertically upward guard plate (16) is provided at one end of the second adjustment plate (2) away from the first adjustment plate (1), and vertically upward guard plates (16) are provided on both side walls.

8. The multi-stage leveling device according to claim 1, characterized in that: A scale (9) is arranged on the side wall of the first adjustment plate (1), and a pointer (10) pointing to the scale (9) is arranged on the side wall of the second adjustment plate (2); the scale (9) and the pointer (10) cooperate to record adjustment parameters.

9. The multi-stage leveling device according to claim 1, characterized in that: The bottom surface of the first adjustment plate (1) and the top surface of the second adjustment plate (2) are both polished.

10. The multi-stage leveling device according to claim 1, characterized in that: The first adjustment plate (1) and the second adjustment plate (2) are both made of steel.

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