Installation crack arrest structure
By setting crack stop grooves on the mounting parts to change the stress distribution, the problem of easy crack cracking during or after installation is solved, and the effect of preventing crack propagation and extending service life is achieved.
Patent Information
- Application Number
- CN202422302830.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-20
AI Technical Summary
Mechanical structures are prone to cracks during or after installation, resulting in a decrease in the load-bearing capacity of the structure and may cause failure.
A crack stop groove is provided on the mounting member to change the stress distribution and release the stress at the crack stop groove position, thereby preventing cracks from spreading.
Effectively prevent cracking of the installation plane, extend the service life of the mounting parts and improve the reliability and safety of the structure.
Smart Images

Figure CN223075916U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical structures, and in particular to an installation crack arrest structure. Background Art
[0002] In the field of mechanical engineering, the integrity and durability of mechanical structures are important indicators for evaluating their performance. However, in actual applications, due to the intertwined influence of various complex factors, such as the inherent properties of the material itself (such as toughness, strength, fatigue resistance, etc.), the limitations of manufacturing processes (such as welding defects, uneven heat treatment, etc.), and the harsh conditions of the use environment (such as high temperature, high pressure, corrosive media, etc.), mechanical structures are prone to cracks during or after installation.
[0003] If these initial cracks are not controlled and treated in a timely and effective manner, they may continue to spread rapidly under the action of stress, gradually weakening the bearing capacity of the structure until it finally leads to structural failure or damage, resulting in serious consequences. Therefore, designing an effective installation crack arrest structure is of great significance for improving the reliability and safety of the structure. Summary of the Utility Model
[0004] In order to solve the above technical problems, the utility model provides an installation crack arrest structure, which can effectively prevent the occurrence and expansion of cracks and improve the life and safety of the structure.
[0005] The technical problems solved by the utility model can be realized by the following technical solutions:
[0006] An installation crack arrest structure, comprising:
[0007] An installation part, on the installation plane of which there are installation holes through which a connecting part can pass, and the connecting part passes through the installation holes to install the installation part on a fixing part;
[0008] A crack arrest groove, which is formed by opening from the installation hole.
[0009] Preferably, the crack arrest groove is formed by opening along the radial direction of the installation hole starting from the installation hole.
[0010] Preferably, the crack arrest groove is an open groove.
[0011] Preferably, the shape of the crack arrest groove is U-shaped or V-shaped.
[0012] Preferably, the width of the crack arrest groove is smaller than the aperture of the installation hole.
[0013] Preferably, the width of the crack arrest groove is at least smaller than the aperture of the installation hole by a preset width.
[0014] Preferably, the preset width is 1 mm.
[0015] Preferably, the width of the crack arrest groove is not less than 0.5 mm.
[0016] Preferably, the mounting member includes a plurality of mounting planes, and at least one of the mounting holes is provided on each of the mounting planes.
[0017] Preferably, the mounting plane includes three.
[0018] The advantages or beneficial effects of the technical solution of the present utility model are as follows:
[0019] By providing a crack arrest groove on the mounting member, the present utility model can change the stress distribution of the mounting plane, so that the stress is concentrated at the position of the crack arrest groove for release after the mounting member is installed, thereby preventing cracks from appearing on the mounting plane and causing cracking problems, and prolonging the service life of the mounting member. Description of the Drawings
[0020] Figure 1 It is a top view of the installation crack arrest structure in the preferred embodiment of the present utility model;
[0021] Figure 2 It is a partially enlarged schematic view of the mounting plane in the preferred embodiment of the present utility model;
[0022] Figure 3 It is an installation structure schematic diagram of the installation crack arrest structure in the preferred embodiment of the present utility model;
[0023] Figure 4 It is an installation explosion schematic diagram of the installation crack arrest structure in the preferred embodiment of the present utility model.
[0024] Description of the Reference Numerals:
[0025] 1. Connecting member; 2. Mounting member; 3. Fixing member; 4. Crack arrest groove. Detailed Embodiments
[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0027] In the description of the present utility model, it should be noted that when terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, when terms such as "first", "second", "third" appear, they are only for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, when terms such as "installation", "connection", "attachment" are used, they 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0029] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.
[0030] The present utility model will be further described below with reference to the drawings and specific embodiments, but it is not intended as a limitation to the present utility model.
[0031] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , in the preferred embodiment of the present utility model, in view of the above problems existing in the prior art, a mounting crack arrest structure is provided, including:
[0032] A mounting member 2, on the mounting plane of the mounting member 2, there is a mounting hole through which a connecting member 1 can pass, and the connecting member 1 passes through the mounting hole to mount the mounting member 2 on a fixing member 3;
[0033] A crack arrest groove 4, which is formed by opening from the mounting hole.
[0034] Specifically, in this embodiment, by providing the crack arrest groove 4 on the mounting plane of the mounting member 2, the stress distribution of the mounting plane can be changed, so that the stress generated during the installation process or within a period of time after installation of the mounting member 2 is concentrated at the position of the crack arrest groove 4 for release, thereby preventing cracks from appearing on the mounting plane and causing cracking problems.
[0035] In this embodiment, as Figure 3 and Figure 4 As shown, the installation structure includes a connecting piece 1, an installation piece 2, and a fixing piece 3. The installation piece 2 is fixed to the fixing piece 3 through the connecting piece 1. By integrating a crack arrest structure, namely a crack arrest groove 4, on the installation piece 2, part of the applied installation force is released at the position of the crack arrest groove 4 after the connecting piece 1 is installed, avoiding the problem of cracking on the installation plane during the assembly process and extending the service life of the installation piece 2.
[0036] The connecting piece 1 has an end pressing down on the installation piece 2. Part of the applied installation force is released at the position of the crack arrest groove 4 after the connecting piece 1 is installed, so that the connection between the connecting piece 1 and the installation piece 2 is more reliable after installation.
[0037] In this embodiment, the installation piece 2 can be a plastic part. The plastic part is used for installation on other structures, and the crack arrest structure is embodied on this part. The crack arrest structure is mainly formed by grooving on the installation piece 2.
[0038] As a preferred embodiment, the crack arrest groove 4 is formed by opening along the radial direction of the installation hole starting from the installation hole.
[0039] Specifically, in this embodiment, starting from the edge of the installation hole, grooving is carried out along the radial direction of the installation hole to form the crack arrest groove 4, so that the crack arrest groove 4 can effectively guide and release the radial stress generated during the installation process and prevent cracks caused by stress concentration.
[0040] As a preferred embodiment, the crack arrest groove 4 is an open groove.
[0041] Specifically, one or both ends of the crack arrest groove 4 are open, allowing the installation piece 2 to have a certain deformation space when subjected to stress, further enhancing the stress release effect of the crack arrest groove.
[0042] In this embodiment, the shape of the crack arrest groove 4 can be a groove with parallel sides, which is simple in shape and easy to process, and can provide an effective stress release path at the same time.
[0043] In order to further optimize the stress release effect, as a preferred embodiment, the shape of the crack arrest groove 4 can be U-shaped or V-shaped.
[0044] Specifically, the bottoms of the U-shaped and V-shaped grooves are narrower, which can more concentratedly guide the stress release and slow down the crack propagation speed.
[0045] In terms of shape selection, the crack arrest groove 4 can also adopt other forms to adapt to different stress distributions and release requirements.
[0046] As a preferred embodiment, the width of the crack arrest groove 4 is smaller than the diameter of the installation hole.
[0047] Specifically, the width of the crack arrest groove 4 should be smaller than the diameter of the installation hole to avoid damaging the structural integrity of the installation hole.
[0048] As a preferred embodiment, the width of the crack arrest groove 4 is at least smaller than the aperture of the mounting hole by a preset width.
[0049] As a preferred embodiment, the preset width is 1 mm.
[0050] Furthermore, in order to improve safety while ensuring the effect, the width of the crack arrest groove is at least smaller than the aperture of the mounting hole by a preset width. In this embodiment, the preset width can be set to 1 mm, which can avoid unnecessary strength loss while ensuring the stress release effect.
[0051] As a preferred embodiment, the width of the crack arrest groove 4 is not less than 0.5 mm.
[0052] Specifically, in this embodiment, the minimum width of the crack arrest groove 4 is 0.5 mm, and the maximum width is the diameter of the mounting hole - 1 mm.
[0053] As a preferred embodiment, the mounting member 2 includes a plurality of mounting planes, and at least one mounting hole is provided on each mounting plane.
[0054] Specifically, a plurality of mounting planes can be provided. The main body part of the mounting member 2 serves as a support structure, and the mounting planes are regions extending from the main body part for installation and fixation.
[0055] As a preferred embodiment, the mounting plane includes three.
[0056] In this embodiment, the three mounting planes are distributed in a triangle, improving the mounting stability of the mounting member 2.
[0057] As an example, two of the three mounting planes extend from the main body part of the mounting member 2 towards the first direction, and these two mounting planes are located at two ends of the mounting main body; the third mounting plane extends from the mounting main body towards the second direction opposite to the first direction, and this mounting plane is located at the middle position of the mounting main body. The layout method of triangular distribution makes the mounting member 2 more reliable after installation and improves the reliability of the structure.
[0058] The advantages or beneficial effects of adopting the above technical solution are as follows: By providing a crack arrest groove on the mounting member, the stress distribution of the mounting plane can be changed, so that the stress is concentrated at the crack arrest groove position for release after the mounting member is installed, thereby preventing cracks from appearing on the mounting plane and causing cracking problems, and prolonging the service life of the mounting member.
[0059] The above are only preferred embodiments of the present utility model, and do not limit the implementation manners and protection scope of the present utility model. For those skilled in the art, it should be realized that all the solutions obtained by equivalent replacements and obvious changes made by using the content of this specification and the drawings should be included in the protection scope of the present utility model.
Claims
1. An anti-crack structure for installation, characterized in that, Including: A mounting member, on the mounting plane of the mounting member, there are mounting holes through which a connecting member can pass, and the connecting member passes through the mounting holes to mount the mounting member on a fixing member; A crack arrest groove, which is formed by opening from the mounting hole.
2. The installation crack arrest structure according to claim 1, wherein, The crack arrest groove is formed by opening along the radial direction of the mounting hole starting from the mounting hole.
3. The installation crack arrest structure according to claim 1, characterized in that, The crack arrest groove is an open groove.
4. The installation crack arrest structure according to claim 1, characterized in that The shape of the crack arrest groove is U-shaped or V-shaped.
5. The installation crack arrest structure according to claim 1, characterized in that, The width of the crack arrest groove is smaller than the aperture of the mounting hole.
6. The installation crack arrest structure according to claim 5, characterized in that, The width of the crack arrest groove is at least smaller than the aperture of the mounting hole by a preset width.
7. The installation crack arrest structure according to claim 6, characterized in that, The preset width is 1 mm.
8. The installation crack arrest structure according to claim 1, wherein, The width of the crack arrest groove is not less than 0.5 mm.
9. The installation crack arrest structure according to claim 1, characterized in that, The mounting member includes a plurality of mounting planes, and at least one of the mounting holes is provided on each mounting plane.
10. The installation crack arrest structure according to claim 1, characterized in that, The mounting plane includes three.