Plane adjusting block

Abstract

The utility model relates to the technical field of antiskid fasteners, in particular to a plane adjusting block which comprises a supporting unit, a fastening unit and a locking unit. The supporting unit is arranged at the bottom, and a fastening groove is formed in the middle of the supporting unit; the fastening unit comprises a first fastening bolt, a first fastening nut and a second fastening nut, the first fastening nut is arranged on the fastening groove, the first fastening nut is provided with a first thread, the second fastening nut is provided with a second thread, and the first thread is opposite to the second thread; the locking unit comprises a first locking bolt and a locking limiting groove, third threaded holes are formed in one side of the first fastening nut and one side of the second fastening nut, the first locking bolt penetrates through the third threaded holes, and the locking limiting groove is formed in one side of the first fastening bolt; according to the utility model, through the threads and the locking units in opposite directions, all accessories are tightly attached and are not easy to rotate or displace.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-slip fasteners, in particular to a plane adjustment block. Background Art

[0002] A plane adjustment block is a crucial component for fixing panels, ensuring their levelness and adapting to varying thicknesses and heights. Its primary function is to restore uneven or misaligned panels to their ideal position through fine-tuning, thereby ensuring the stability and compatibility of the overall structure. This allows construction workers to complete complex adjustments in a short period of time without the need for repeated measurement and trial and error, making it an indispensable component in modern architecture and design.

[0003] However, the existing plane adjustment block does not have a locking structure. During the construction process, vibration or external force will inevitably occur, causing the bolts to rotate, resulting in gaps or looseness in the whole. If construction continues, problems such as misalignment of the plates or uneven weighing may occur, seriously affecting the construction accuracy.

[0004] Therefore, there is an urgent need for a technology that can solve the problem of displacement of the plane adjustment block. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the prior art and proposes a plane adjustment block, aiming to solve the problem of displacement of the plane adjustment block.

[0006] In one aspect, the present invention provides a plane adjustment block, comprising:

[0007] Support unit, fastening unit and locking unit;

[0008] A support unit is provided at the bottom, is rectangular, and has a fastening groove in the middle;

[0009] a fastening unit, the fastening unit comprising a first fastening bolt, a first fastening nut, and a second fastening nut, the first fastening nut being arranged on the fastening groove, the first fastening nut being provided with a first thread, the lower portion of the second fastening nut being sleeved within the first fastening nut, the second fastening nut being provided with a second thread, the first thread being opposite to the second thread, the first fastening bolt being provided with a third thread corresponding to the second thread, the first fastening bolt passing through the first fastening nut and the second fastening nut through the second bolt hole;

[0010] The locking unit includes a first locking bolt and a locking limit groove. A third threaded hole is opened on one side of the first fastening nut and the second fastening nut. The first locking bolt passes through the third threaded hole. A locking limit groove is set on one side of the first fastening bolt, and the locking limit groove corresponds to the first locking bolt.

[0011] Furthermore, the fastening unit also includes a third fastening nut, a fourth bolt hole is opened in the middle of the third fastening nut, a fourth thread is set in the fourth bolt hole, the fourth thread has the same direction as the second thread, and the third fastening nut is fitted with the second fastening nut.

[0012] Furthermore, the bottom of the third fastening nut is provided with anti-slip grooves, and the anti-slip grooves are closely arranged in a semi-fan shape.

[0013] Furthermore, the upper surface of the second fastening nut is also provided with anti-slip grooves corresponding to the third fastening nut.

[0014] Furthermore, the first fastening bolt includes a fastening bolt column and a bolt head, and the bottom of the bolt head is fixedly connected to the top of the bolt column.

[0015] Furthermore, the upper end of the locking limit groove is inclined.

[0016] Furthermore, a plurality of limiting holes are provided on both sides of the support unit, anti-slip layers are provided in the limiting holes, and the limiting holes are distributed in an axisymmetric manner.

[0017] Furthermore, a nut protrusion is provided at the bottom of the first fastening nut, and the nut protrusion corresponds to the fastening groove.

[0018] Furthermore, the inner diameter of the second bolt hole is consistent with the outer diameter of the first fastening bolt.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The present invention sets a first fastening nut and a second fastening nut so that the internal threads of the two nuts are opposite, and the fastening bolt passes through the first fastening nut and the second fastening nut through the second bolt hole. When the external rotational force acts on the bolt, once one nut is slightly loosened due to this force, the other nut is automatically tightened due to the self-locking effect of the reverse thread, thereby playing a role of mutual checks and balances and offsetting the rotational force, so that it can play a role of preventing loosening through the self-locking effect of the thread.

[0020] (2) The utility model fixes the first fastening bolt through the locking unit. When vibration or other external forces cause the bolt to rotate or loosen, the locking unit can limit the first fastening bolt to prevent it from rotating and displacing, thereby causing unevenness between the plates and unequal angles that affect construction accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a plane adjustment block provided in an embodiment of the present utility model;

[0022] Figure 2 A side view of a plane adjustment block provided in an embodiment of the present utility model;

[0023] Figure 3 A side view of the third fastening nut in the plane adjustment block provided by an embodiment of the present utility model;

[0024] Figure 4 A side view of the first fastening nut in the plane adjustment block provided by an embodiment of the present utility model;

[0025] Figure 5 A side view of the first fastening bolt in the plane adjustment block provided by an embodiment of the present utility model;

[0026] Figure 6 A side view of the second fastening bolt in the plane adjustment block provided by the embodiment of the utility model

[0027] Among them: 1. Support unit; 101. Limiting hole; 2. Fastening unit; 201. First fastening bolt; 202. First fastening nut; 203. Second fastening nut; 204. Third fastening nut; 205. Anti-slip pattern; 206. Fastening bolt column; 207. Bolt head; 208. Nut protrusion; 209. Third threaded hole; 3. Locking unit; 301. First locking bolt; 302. Locking limiting groove. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0029] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do 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 this application.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0032] The plane adjustment block is an important component for fixing the plate. It can ensure the levelness of the plate and adapt to the adjustment needs of different thicknesses and heights. Its main function is to restore the uneven or misplaced plate to the ideal position through fine-tuning, thereby ensuring the stability and stability of the overall structure. Construction workers can complete complex adjustment work in a short time without repeated measurement and trial and error. Therefore, it has become one of the indispensable components in modern architecture and design. However, in actual operation, due to the inevitable vibration or external force during the construction process, the plane adjustment block will have a slight displacement. If construction continues, there may be problems such as misalignment of the finish or uneven load-bearing, which seriously affect the construction accuracy. Therefore, there is an urgent need for a technology that can solve the problem of displacement of the plane adjustment block.

[0033] See Figure 1 、 Figure 2 、 Figure 6 As shown, this embodiment provides a plane adjustment block, comprising a supporting unit 1 and a fastening unit 2;

[0034] Support unit 1, fastening unit 2 and locking unit 3;

[0035] A support unit 1 is provided at the bottom, is rectangular, and has a fastening groove in the middle;

[0036] The fastening unit 2 includes a first fastening bolt 201, a first fastening nut 202, and a second fastening nut 203. The first fastening nut 202 is arranged on the fastening groove and is provided with a first thread. The lower portion of the second fastening nut 203 is sleeved within the first fastening nut 202. The second fastening nut 203 is provided with a second thread, the first thread being opposite to the second thread. The first fastening bolt 201 is provided with a third thread corresponding to the second thread. The first fastening bolt 201 passes through the first fastening nut 202 and the second fastening nut 203 through the second bolt hole.

[0037] The locking unit 3 includes a first locking bolt 301 and a locking limit groove 302. A third threaded hole 209 is provided on one side of the first fastening nut 202 and the second fastening nut 203. The first locking bolt 301 passes through the third threaded hole 209. A locking limit groove 302 is provided on one side of the first fastening bolt 201. The locking limit groove 302 corresponds to the first locking bolt 301.

[0038] Specifically, the support unit 1 is provided with a fastening groove, and the first fastening nut 202 is fixed in the fastening groove. The first fastening nut 202 is provided with a first bolt hole, and the thread inside the first bolt hole corresponds to the thread on the outer surface of the second fastening nut 203, and the second fastening nut 203 is engaged through the thread. At the same time, a second bolt hole is provided inside the second fastening nut 203, and the second thread inside the second bolt hole is opposite to the first thread in the first bolt hole, but corresponds to the third thread on the first fastening bolt 201. When the first fastening bolt 201 is tightened, the first fastening nut 202 and the second fastening nut 203 can be tightened. The second fastening nut 203 is tightly fitted, and the second fastening nut 203 is provided with a thread that engages with the first fastening nut 202 at its bottom. The bottom of the second fastening nut 203 is engaged with the first fastening nut 202. Therefore, the fourth threaded hole passes through the first fastening nut 202 and the second fastening nut 203, so that the first locking bolt 301 can be fitted with the first fastening bolt 201 through the fourth threaded hole, so as to achieve the purpose of limited locking. The locking limit groove 302 is provided on one side of the fastening bolt, corresponding to the direction of the third threaded hole 209. The first locking bolt 301 can be fitted with the locking limit groove 302, so that the first fastening bolt 201 is not easy to loosen or rotate.

[0039] It is understandable that the setting of the fastening groove provides a stable installation position for the first fastening nut 202, making it less likely to loosen or shift, thereby ensuring the fastening performance of the entire device. The fastening groove can also prevent sliding or rotation caused by external forces. The design of the first bolt hole allows the first fastening nut 202 to be firmly fixed on the support unit 1 and to engage with the second fastening nut 203 through threads. The thread directions of the first fastening nut 202 and the second fastening nut 203 are opposite, and the design of the reverse thread has an anti-loosening function. When an external force attempts to loosen one of the nuts, the other nut will produce a reverse tightening effect, thereby achieving self-locking. This self-locking structure can improve the fastening effect of the entire system, especially in long-term use or high-load environments, and can prevent the nut from loosening due to vibration or fatigue, ensuring the continued stability of the device. In addition, the tight fit of the second fastening nut 203 and the first fastening nut 202 not only achieves the connection between the two through threaded engagement, but also can disperse the force. Threads in different directions can withstand multi-directional tension and shear forces, demonstrating enhanced load-bearing capacity and fatigue resistance in applications with complex stress conditions. Because the threads are directed in opposite directions, external forces act simultaneously on both sets of threads, resulting in more even force distribution, thereby extending the service life of the bolt and nut and reducing the risk of fatigue failure due to stress concentration. Furthermore, when tightening is required, tightening the first fastening bolt 201 allows the first fastening nut 202 and the second fastening nut 203 to engage with each other. Through thread engagement and a reverse self-locking structure, a tightening effect is achieved, along with anti-loosening and anti-vibration features. This enhances the reliability of the plane adjustment block, extends its service life, and reduces the risk of loosening or fatigue failure. A fourth threaded hole penetrates the first and second fastening nuts 202, 203, through which the first locking bolt 301 passes, thereby enhancing the tightening effect. The fourth threaded hole allows the first locking bolt 301 to pass through the entire fastening system and directly engage with the first fastening bolt 201, achieving a dual locking function. It not only ensures a firm bond between the bolt and the nut, but also prevents the locking bolt from accidentally loosening or shifting through the limiting effect. After long-term use, the traditional bolt system may gradually loosen due to external forces or vibrations, leading to accidents. The first locking bolt 301 can limit the displacement of the first fastening bolt 201 to prevent it from rotating or loosening when subjected to external impact, thereby ensuring overall stability. At the same time, the limiting function of the locking bolt also helps prevent the bolt from falling off. Through the limiting design, the locking bolt can not only prevent the bolt from loosening, but also ensure that the bolt will not fall out of the threaded hole under extreme force or impact, further improving the safety and stability of the entire structure. In traditional bolt connections, loosening is usually caused by external forces or continuous vibrations that cause the bolt to slowly rotate.Through this limit groove, the first locking bolt 301 not only obtains additional stable support based on the threaded engagement, but also prevents its rotation through the physical restriction of the limit groove. This can prevent the bolt from loosening spontaneously during use, especially when the equipment is subjected to frequent vibration or dynamic loads, thereby improving the anti-loosening performance of the fastening system. Secondly, the upper end of the locking limit groove 302 is inclined at an angle, which means that when the first locking bolt 301 is aligned with the limit groove, the inclined surface can further increase the friction between the bolt and the limit groove, enhancing the locking effect, making the contact between the bolt and the limit groove closer, and preventing displacement or sliding. The inclined angle not only provides a physical locking function, but also can disperse local stress by changing the direction of force, avoiding damage or failure of the bolt due to concentrated force in a single direction. The inclined locking limit groove 302 also helps to enhance seismic resistance. During operation, the equipment is often exposed to vibration and impact in different directions. If the bolt lacks sufficient seismic protection, it may gradually loosen due to frequent vibration. The tilted angle creates an automatic "locking" effect between the first locking bolt 301 and the locking limit slot 302. The tilted surface blocks external forces, preventing loosening when the direction of vibration is inconsistent with the direction of force acting on the bolt. This offers multiple advantages in terms of wear prevention, extended service life, and improved safety. This design is ideal for equipment requiring high stability, fatigue resistance, and safety, especially in operating environments subject to long periods of operation, frequent vibration, or high shock loads. It can effectively reduce equipment failures and maintenance frequency, improve operational efficiency, and reduce operating costs.

[0040] In some embodiments of the present application, see Figure 3 As shown, the fastening unit 2 also includes a third fastening nut 204, a fourth bolt hole is opened in the middle of the third fastening nut 204, a fourth thread is set in the fourth bolt hole, and the fourth thread is in the same direction as the second thread. The third fastening nut 204 is in contact with the second fastening nut 203.

[0041] In some embodiments of the present application, anti-slip grooves 205 are provided on the bottom of the third fastening nut 204 , and the anti-slip grooves 205 are closely arranged in a semi-fan shape.

[0042] In some embodiments of the present application, an upper surface of the second fastening nut 203 is further provided with anti-slip grooves 205 corresponding to the third fastening nut 204 .

[0043] Specifically, the third fastening nut 204 is arranged on the second fastening nut 203, and a threaded hole is also opened in the middle of the third fastening nut 204, and its thread is in the same direction as the second thread. When the first fastening bolt 201 is threadedly engaged, the first fastening bolt 201 first passes through the third fastening nut 204 and then engages with the second thread of the second fastening nut 203. At the same time, the bottom of the third fastening nut 204 is provided with an anti-slip groove 205. When the first fastening bolt 201 is engaged and tightened, the third fastening nut 204 and the second fastening nut 203 can be tightly fitted. The anti-slip groove 205 can prevent the third fastening nut 204 and the second fastening nut 203 from loosening due to vibration or external force and causing small gaps or displacement.

[0044] It is understood that the third fastening nut 204 is designed to further enhance the system's fastening performance. Its thread direction is the same as that of the second fastening nut 203, ensuring that during the tightening of the first fastening bolt 201, the third fastening nut 204 and the second fastening nut 203 simultaneously engage with the first fastening bolt 201, achieving a stronger fastening force. This not only enhances the stability of the system but also demonstrates greater tensile and shear resistance when subjected to multi-directional forces, ensuring that the entire device maintains a good fastening effect even in high-load environments. Secondly, the anti-slip grooves 205 on the third fastening nut 204 create greater friction when the third fastening nut 204 and the second fastening nut 203 are tightly fitted, thereby preventing minor loosening or displacement caused by vibration, impact, or other external factors during use. Typically, vibration and impact are the main causes of nut loosening, and the anti-slip grooves 205 significantly enhance the friction between the nuts, reducing the risk of loosening due to insufficient thread self-locking. This can extend the service life of the device and reduce safety hazards caused by loosening. In addition, when the first fastening bolt 201 passes through the third fastening nut 204 and engages with the second nut, the synchronous meshing of the multi-stage thread makes the force more evenly distributed, which not only enhances the bearing capacity between the threads, but also reduces the risk of damage to the bolts and nuts due to excessive local stress. The uniformity of the thread direction ensures smoothness during the tightening process, allowing operators to easily complete the tightening work and avoid operational difficulties caused by inconsistent thread directions. At the same time, the presence of the anti-slip groove 205 also helps to maintain the positioning accuracy of the third fastening nut 204 during the installation process and prevent displacement during the installation process. In traditional nut systems, vibrations often cause the nuts to loosen, resulting in slight displacements or gaps in the system, and ultimately leading to unevenness between the plates. The anti-slip groove 205 and the thread meshing work together to achieve an active anti-loosening effect, allowing the system to maintain a stable state during long-term use, and is less likely to loosen or fail, reducing fatigue damage caused by thread wear and stress concentration in the system and extending its service life.

[0045] In some embodiments of the present application, see Figure 5 As shown, the first fastening bolt 201 includes a fastening bolt column 206 and a bolt head 207 , and the bottom of the bolt head 207 is fixedly connected to the top of the bolt column.

[0046] In some embodiments of the present application, as shown in the drawings, the upper end of the locking limit groove 302 is inclined.

[0047] It is understandable that in traditional bolt connections, loosening usually occurs due to external forces or continuous vibrations causing the bolt to slowly rotate. However, through this limit groove, the first locking bolt 301 not only obtains additional stable support based on the threaded engagement, but also prevents its rotation through the physical restriction of the limit groove. This can prevent the bolt from spontaneously loosening during use, especially when the equipment is subjected to frequent vibration or dynamic loads, thereby improving the anti-loosening performance of the fastening system. Secondly, the upper end of the locking limit groove 302 is inclined at an angle, which means that when the first locking bolt 301 is aligned with the limit groove, the friction between the bolt and the limit groove can be further increased through the inclined surface, enhancing the locking effect, making the contact between the bolt and the limit groove closer, and preventing displacement or sliding. The inclined angle not only provides a physical locking function, but also can disperse local stress by changing the direction of force, avoiding damage or failure of the bolt due to concentrated force in a single direction. The inclined locking limit groove 302 also helps to enhance seismic resistance. During operation, the equipment is often exposed to vibrations and shocks in different directions. If the bolts lack sufficient anti-seismic protection, they may gradually loosen due to frequent vibrations. Through the design of the tilt angle, an automatic "locking" effect is formed between the first locking bolt 301 and the locking limit groove 302. The inclined surface can form a blocking effect on external forces to prevent loosening when the vibration direction is inconsistent with the force direction of the bolt, showing multiple advantages in terms of anti-wear, extending service life and improving safety. This design is very suitable for equipment that requires high stability, high fatigue resistance and high safety, especially in working environments with long-term operation, frequent vibration or large impact loads. It can effectively reduce equipment failures and maintenance frequency, improve operating efficiency and reduce operating costs.

[0048] In some embodiments of the present application, a plurality of limiting holes 101 are further provided on both sides of the support unit 1 , an anti-slip layer is provided in the plurality of limiting holes 101 , and the plurality of limiting holes 101 are distributed in an axisymmetric manner.

[0049] It is understandable that the limiting hole 101 is used for the plane adjustment block to connect the plate, and the anti-slip layer in the limiting hole 101 can prevent loosening or displacement, making it difficult for the plate to be displaced or offset, thereby ensuring its stability.

[0050] In some embodiments of the present application, as shown in the drawings, a nut protrusion 208 is provided at the bottom of the first fastening nut 202 , and the nut protrusion 208 corresponds to the fastening groove.

[0051] Specifically, there is a protrusion at the bottom of the first fastening nut 202, which corresponds to the nut groove on the fastening groove. Because the second fastening nut 203, the third fastening nut 204, the locking unit 3 and the first fastening bolt 201 are all arranged on the first fastening nut 202, if the first fastening nut 202 is displaced or loosened, it may cause the entire device to rotate. Therefore, the nut protrusion 208 and the nut groove can limit the first fastening nut 202 so that it will not be displaced, thereby ensuring the stability of the entire device.

[0052] It is understandable that the combination of the protrusion and the groove can effectively prevent the displacement and loosening of the first fastening nut 202. When a conventional nut is used for a long time or is subjected to external vibration or impact, the threaded connection may gradually loosen, resulting in an unstable device structure. By providing a protrusion at the bottom of the first fastening nut 202 and engaging with the groove in the fastening groove, additional mechanical limiting protection can be added. The physical interlocking effect of this protrusion and the groove prevents the first fastening nut 202 from displacing in the horizontal direction while also preventing it from loosening in the rotational direction. This limiting protection improves the stability of the fastening system. Since the second fastening nut 203, the third fastening nut 204, the locking unit 3, and the first fastening bolt 201 all rely on the stability of the first fastening nut 202, if the first fastening nut 202 is displaced or loosened, it may cause the entire structure to shift or rotate, affecting the normal operation of the entire system. The limiting design of the protrusion and groove can effectively prevent this from happening, ensuring that other fastening components remain tightly connected during operation. The design of the protrusion and groove also improves the device's seismic resistance. Traditional threaded connections are prone to slight relative displacement or rotation under long-term vibration or high dynamic loads, leading to gradual loosening. By adding a stopper between the protrusion and groove, the entire system exhibits enhanced resistance to vibration and shock. This stopper distributes external lateral and rotational stresses between the protrusion and groove, preventing the threads from bearing excessive stress alone. This reduces the risk of loosening and improves the durability of the device. Furthermore, the protrusion and groove stopper simplifies fastener assembly and maintenance. During assembly, the precise fit of the protrusion and groove automatically aligns and stops the nut, eliminating the need for repeated adjustments during assembly. This design reduces operator error and improves assembly efficiency. It also ensures that the nut is correctly positioned after each assembly, preventing loosening or displacement caused by improper assembly. The protrusion and groove design also plays a key role in fatigue resistance. Traditional threaded connections can loosen or fail under long-term loads due to stress concentration and fatigue. However, through the limiting protection of the bumps and grooves, the externally applied force can be dispersed through multiple contact surfaces, reducing the stress concentration on a single thread. Multiple force transmission paths can delay the wear process of nuts and bolts, reduce the risk of fatigue damage, and thus increase the service life of the system. At the same time, it can also improve the corrosion resistance of the fasteners to a certain extent. In threaded connection systems exposed to corrosive environments, the loosening of nuts often exacerbates the corrosion process, thereby affecting the service life of the fasteners. The interlocking design of the bumps and grooves can reduce the direct exposure of the environment to the threaded connection parts through a close fit, thereby delaying the occurrence of corrosion to a certain extent. Combined with the surface treatment process, this limiting design can improve the durability of fasteners in harsh environments.

[0053] In some embodiments of the present application, the inner diameter of the second bolt hole is consistent with the outer diameter of the first fastening bolt 201 .

[0054] Specifically, the second bolt hole can make the first fastening bolt 201 correspond to the second bolt hole, so that the first fastening bolt 201 is engaged with the second fastening nut 203.

[0055] In each of the above embodiments, a plane adjustment block is provided with a first fastening nut and a second fastening nut, so that the internal threads of the two nuts are opposite, and the fastening bolt passes through the first fastening nut and the second fastening nut through the second bolt hole. When a rotational force applied from the outside acts on the bolt, once one nut is slightly loosened due to this force, the other nut is automatically tightened due to the self-locking effect of the reverse thread, thereby playing a role of mutual checks and balances and offsetting the rotational force, so that it can prevent loosening through the self-locking effect of the thread.

[0056] In each of the above embodiments, a plane adjustment block fixes the first fastening bolt through a locking unit. When vibration or other external forces cause the bolt to rotate or loosen, the locking unit can limit the first fastening bolt to prevent it from rotating and displacing, thereby causing unevenness between the plates and unequal angles that affect construction accuracy.

[0057] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A plane adjustment block, characterized in that: include: Support unit, fastening unit and locking unit; A support unit is provided at the bottom, is rectangular, and has a fastening groove in the middle; a fastening unit, the fastening unit comprising a first fastening bolt, a first fastening nut, and a second fastening nut, the first fastening nut being arranged on the fastening groove, the first fastening nut being provided with a first thread, the lower portion of the second fastening nut being sleeved within the first fastening nut, the second fastening nut being provided with a second thread, the first thread being opposite to the second thread, the first fastening bolt being provided with a third thread corresponding to the second thread, the first fastening bolt passing through the first fastening nut and the second fastening nut through the second bolt hole; The locking unit includes a first locking bolt and a locking limit groove. A third threaded hole is opened on one side of the first fastening nut and the second fastening nut. The first locking bolt passes through the third threaded hole. A locking limit groove is set on one side of the first fastening bolt, and the locking limit groove corresponds to the first locking bolt.

2. The plane adjustment block according to claim 1, characterized in that: The fastening unit also includes a third fastening nut, a fourth bolt hole is opened in the middle of the third fastening nut, a fourth thread is set in the fourth bolt hole, the fourth thread has the same direction as the second thread, and the third fastening nut is attached to the second fastening nut.

3. The plane adjustment block according to claim 2, characterized in that: The bottom of the third fastening nut is provided with anti-slip grooves, and the anti-slip grooves are closely arranged in a semi-fan shape.

4. The plane adjustment block according to claim 1, characterized in that: The upper surface of the second fastening nut is further provided with anti-slip grooves corresponding to the third fastening nut.

5. The plane adjustment block according to claim 1, characterized in that: The first fastening bolt includes a fastening bolt column and a bolt head, and the bottom of the bolt head is fixedly connected to the top of the bolt column.

6. The plane adjustment block according to claim 5, characterized in that: The upper end of the locking limiting groove is inclined.

7. The plane adjustment block according to claim 1, characterized in that: A plurality of limiting holes are further provided on both sides of the support unit, anti-slip layers are provided in the limiting holes, and the limiting holes are distributed in an axisymmetric manner.

8. The plane adjustment block according to claim 1, characterized in that: A nut protrusion is provided at the bottom of the first fastening nut, and the nut protrusion corresponds to the fastening groove.

9. The plane adjustment block according to claim 1, characterized in that: An inner diameter of the second bolt hole is consistent with an outer diameter of the first fastening bolt.

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