Sleeve nut and sleeve nut mounting method

Abstract

The invention discloses a sleeve nut and a sleeve nut mounting method, and belongs to the technical field of fasteners. The sleeve nut comprises a sleeve body, a first locking groove and a second locking groove are formed in the peripheral face of the sleeve body, and the first locking groove and the second locking groove are formed in the two axial ends of the sleeve body respectively, so that when the sleeve nut is installed in a hole formed in a sectional material, the sleeve nut is matched with the edge area of the hole close to the sectional material, and the hole is locked through the first locking groove and the second locking groove. Materials of the section bar can conveniently flow and enter; the thrust plate is arranged at one end of the sleeve body, and the peripheral edge of the thrust plate protrudes out of the peripheral face of the sleeve body so that the thrust plate can abut against the surface of the sectional material when the thrust plate is installed on the sectional material. According to the sleeve nut and the sleeve nut mounting method, the sleeve nut machining process can be simplified to a certain extent, the machining cost is reduced, and the fixing stability and the yield are improved.

Description

Technical Field

[0001] This application belongs to the technical field of fasteners, and particularly relates to a sleeve nut and a method for installing the sleeve nut. Background Art

[0002] A sleeve nut is a fastener that combines the structures of a sleeve and a nut, usually consisting of a sleeve body and an internal nut. When the sleeve nut is applied, the sleeve body is usually fixed to a profile housing as a connecting structure of the profile housing; the internal nut is used to connect fasteners configured with screws, so that other devices or components can be fastened to the profile housing.

[0003] When installing a sleeve nut in some light thin-sheet type profile parts, the sleeve nut is usually fixed in the thin-sheet type profile part by spot welding or pressing. However, the spot welding process is likely to damage the surface quality of the profile, and the connection reliability is not ideal, with a limited scope of application; the pressing process requires the surface of the sleeve body to be processed with uneven structures such as knurling to increase the contact friction force, making the processing technology of the sleeve nut complex, with a high cost, and the matching accuracy requirements for the knurled area and the holes opened on the profile part are high, the pressing quality is unstable, and the yield rate is low. Summary of the Invention

[0004] This application provides a sleeve nut and a method for installing the sleeve nut, aiming to at least solve to a certain extent the technical problems of complex processing technology, high cost, unstable fixing quality, and low yield rate of the sleeve nut. For this purpose,

[0005] On the one hand, an embodiment of this application provides a sleeve nut, including:

[0006] A sleeve body, on which a first locking groove and a second locking groove are respectively opened on the outer peripheral surface, and the first locking groove and the second locking groove are respectively arranged at two axial ends of the sleeve body to match and be close to the edge area of the hole on the profile when installed in the hole opened on the profile, facilitating the material flow of the profile to enter;

[0007] A thrust disc, arranged at one end of the sleeve body, and the outer peripheral edge of the thrust disc protrudes from the outer peripheral surface of the sleeve body to abut against the profile when installed on the profile, expanding the force-bearing area, dispersing the force, and reducing deformation.

[0008] In some embodiments, part of the side wall of the first locking groove is set as a first guiding inclined wall, and the top of the first guiding inclined wall inclines outward towards the outside of the groove.

[0009] In some embodiments, part of the side wall of the second locking groove is provided as a second guiding inclined wall, the second guiding inclined wall inclines towards the outside of the groove, and in the axial direction of the sleeve body, the second guiding inclined wall is provided as the part of the side wall of the second locking groove that is far from the first locking groove, and the first guiding inclined wall is provided as the part of the side wall of the first locking groove that is far from the second locking groove.

[0010] In some embodiments, part of the side wall of the second locking groove is provided as a second guiding inclined wall, the second guiding inclined wall inclines towards the outside of the groove, and in the axial direction of the sleeve body, the second guiding inclined wall is provided as the part of the side wall of the second locking groove that is close to the first locking groove, and the first guiding inclined wall is provided as the part of the side wall of the first locking groove that is close to the second locking groove.

[0011] In some embodiments, part of the side wall of the first locking groove is provided as a first thrust vertical wall, the first thrust vertical wall is orthogonal to the axial direction of the sleeve body or the first thrust vertical wall inclines towards the inside of the first locking groove, and in the axial direction of the sleeve body, the first thrust vertical wall is arranged opposite to the first guiding inclined wall.

[0012] In some embodiments, the side wall of the thrust disc close to the first locking groove is provided as the first thrust vertical wall.

[0013] In some embodiments, part of the side wall of the second locking groove is provided as a second thrust vertical wall, the second thrust vertical wall is orthogonal to the axial direction of the sleeve body or the second thrust vertical wall inclines towards the inside of the second locking groove, and in the axial direction of the sleeve body, the second thrust vertical wall is arranged opposite to the second guiding inclined wall.

[0014] In some embodiments, the first locking groove and / or the second locking groove is an annular groove arranged along the circumferential direction of the sleeve body.

[0015] In some embodiments, the depths of the first locking groove and the second locking groove are 20% - 50% of the wall thickness of the sleeve body.

[0016] On the other hand, an embodiment of the present application further provides a method for installing a sleeve nut, including: pressing the sleeve nut and the profile together by an external force so that part of the materials of the profile are filled into the first locking groove and the second locking groove respectively.

[0017] The embodiments of the present application at least have the following beneficial effects:

[0018] The sleeve nut and the installation method thereof provided by the embodiment of the present application, the sleeve nut includes a sleeve body and a thrust plate located at one end thereof; first locking grooves and second locking grooves are respectively formed on the outer peripheral surfaces of the two axial ends of the sleeve body. When fixed to the profile through a pressing process, it can accommodate part of the profile material, thereby stably fixing the sleeve body on the profile, improving the fixing reliability and stability; at the same time, the first locking groove and the second locking groove can be arranged in the end regions of the two ends of the sleeve body, matching the edge regions of the holes close to the profile, facilitating the flow of the profile material into them, and to a certain extent, improving the pressing and fixing efficiency and the fixing yield rate of the sleeve body and the profile. On the other hand, the processing technology of the first locking groove and the second locking groove is simple, efficient and low-cost, and is more convenient for mass production and processing. The outer peripheral edge of the thrust plate protrudes from the outer peripheral surface of the sleeve body to abut against the profile when installed on the profile, expanding the force-bearing area, dispersing the force, and reducing the risk of profile deformation. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Shows a schematic structural diagram of the sleeve nut in the embodiment of the present application;

[0021] Figure 2 Shows Figure 1 Another perspective view of the sleeve nut in;

[0022] Figure 3 Shows Figure 2 A cross-sectional view of the sleeve nut in;

[0023] Figure 4 Shows Figure 2 A schematic structural diagram of the sleeve body of the sleeve nut in;

[0024] Figure 5 Shows a schematic structural diagram of another sleeve body of the sleeve nut in the embodiment of the present application;

[0025] Figure 6 Shows Figure 2 A schematic diagram of the un-pressed state cooperation between the sleeve nut and the profile in;

[0026] Figure 7 Shows Figure 2 A schematic diagram of the pressed state cooperation between the sleeve nut and the profile in.

[0027] Reference Signs:

[0028] 1 - Sleeve body, 11 - First locking groove, 111 - First guiding inclined wall, 112 - First thrust vertical wall, 12 - Second locking groove, 121 - Second guiding inclined wall, 122 - Second thrust vertical wall, 13 - Thrust plate;

[0029] 2 - Profile. Detailed Embodiment

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0031] In addition, the present application may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0032] The present application will be described below with reference to the accompanying drawings and specific embodiments:

[0033] Sleeve nuts are usually installed on profiles as connection structures to achieve detachable assembly with other structural parts such as bolts. For this purpose, a relatively large fixing pressure needs to be borne between the sleeve nut and the profile, and the fixing strength and stability directly affect the assembly quality. Existing sleeve nuts often achieve fixation through methods such as spot welding and interference fit. On the one hand, this affects the surface quality of the profile, and on the other hand, limited by the thickness of the profile, thin - plate type profiles are prone to a certain degree of deformation, resulting in an unsatisfactory product appearance.

[0034] Therefore, the embodiments of the present application provide a sleeve nut and a sleeve nut installation method, aiming to improve the fixing reliability and yield rate of the sleeve nut to a certain extent, and reduce the processing complexity and cost of the sleeve nut.

[0035] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7, in some embodiments, the sleeve nut is fixed in the hole formed in the profile 2 by a press-fitting process. To improve the bonding and fixing strength between the profile 2 and the sleeve nut, a first locking groove 11 and a second locking groove 12 may be formed on the outer peripheral surface of the sleeve body 1 of the sleeve nut. During the press-fitting process of the sleeve nut and the profile 2, part of the material of the profile 2 will flow into the first locking groove 11 and the second locking groove 12 under the action of external force, thereby stably locking the sleeve body 1 and the profile 2 together.

[0036] The first locking groove 11 and the second locking groove 12 may be arranged in the end regions of the sleeve body 1. Thus, when the sleeve body 1 and the profile 2 are in a press-fitted state, the bonding force-bearing regions are respectively located at both ends of the sleeve body 1 and on both sides of the hole of the profile 2, so that the sleeve body 1 and the profile 2 form an integral whole, which can evenly disperse the force, ensure the reliability and stability of the fixed state between the sleeve body 1 and the profile 2, and the morphological stability of the profile 2, and avoid local excessive deformation.

[0037] On the other hand, the first locking groove 11 and the second locking groove 12 may be arranged in the end regions of the sleeve body 1, close to the edge region of the hole of the profile 2, which is convenient for part of the material of the profile 2 to flow into the first locking groove 11 and the second locking groove 12 under pressure, and to a certain extent, can improve the press-fitting and fixing efficiency and the fixing yield rate of the sleeve body 1 and the profile 2.

[0038] In some embodiments, to facilitate the flow of part of the material of the profile 2 into the first locking groove 11, part of the side wall of the first locking groove 11 may be set as a first guiding inclined wall 111, that is, the side wall of the part of the groove body where the first guiding inclined wall 111 is located is set to be inclined towards the outside of the groove body, forming a shape with a larger groove opening than the groove bottom. Thus, when the profile 2 is subjected to external pressure, it can guide part of the material of the profile 2 to flow into the first locking groove 11 conveniently, ensure that the amount of the material of the profile 2 flowing into the first locking groove 11 is sufficient, make the combination between the profile 2 and the sleeve body 1 closer, and strengthen the fixing reliability.

[0039] In some embodiments, to facilitate the inflow of some materials of the profile 2 into the second locking groove 12, a part of the side wall of the second locking groove 12 can be set as a second guiding inclined wall 121, that is, the side wall of the part of the groove body where the second guiding inclined wall 121 is located is set to be inclined towards the outside of the groove body, forming a shape with a larger notch than the bottom of the groove. Thus, when the profile 2 is subjected to an external pressure, it can guide some materials of the profile 2 to flow into the second locking groove 12 conveniently, ensuring that the volume of the materials of the profile 2 flowing into the second locking groove 12 is large enough, making the combination of the profile 2 and the sleeve body 1 tighter and strengthening the fixing reliability.

[0040] See Figure 2 、 Figure 3 and Figure 4 , in some embodiments, the first locking groove 11 has the first guiding inclined wall 111, and the second locking groove 12 has the second guiding inclined wall 121. Since the first guiding inclined wall 111 and the second guiding inclined wall 121 facilitate the inflow of the materials of the profile 2 into the corresponding groove bodies and also facilitate the outflow from the corresponding groove bodies to a certain extent; for this reason, the orientations of the first guiding inclined wall 111 and the second guiding inclined wall 121 can be coordinately set to weaken or even eliminate the adverse effects of the first guiding inclined wall 111 and the second guiding inclined wall 121 on the separation of the profile 2 from the corresponding groove bodies.

[0041] Specifically, considering that the direction of the sleeve body 1 detaching from and entering the hole on the profile 2 is the axial direction F of the sleeve body 1, the axial direction F of the sleeve body 1 can be used as a reference direction to set the positions of the first guiding inclined wall 111 and the second guiding inclined wall 121.

[0042] On the axial direction F of the sleeve body 1, the second guiding inclined wall 121 is set as a part of the side wall of the second locking groove 12 close to the first locking groove 11, and the first guiding inclined wall 111 is set as a part of the side wall of the first locking groove 11 close to the second locking groove 12.

[0043] That is to say, the orientations of the first guiding inclined wall 111 and the second guiding inclined wall 121 are opposite on the axial direction F of the sleeve body 1. Thus, when the profile 2 detaches from the sleeve body 1 along the axial direction F, one of the first guiding inclined wall 111 and the second guiding inclined wall 121 can guide the profile 2 to detach from the first locking groove 11 or the second locking groove 12, and the locking groove where the other guiding inclined wall is located blocks the profile 2 from detaching from the locking groove where it is located, thereby relatively weakening the influence of the guiding inclined wall on the separation of the profile 2 from the sleeve body 1 to a certain extent.

[0044] That is, when the sleeve body 1 is separated from the profile 2 along the axial direction F, the first guiding inclined wall 111 can guide the profile 2 to disengage from the first locking groove 11, and the second locking groove 12 blocks the further movement of the profile 2 to disengage from the first locking groove 11; the second guiding inclined wall 121 can guide the profile 2 to disengage from the second locking groove 12, and the first locking groove 11 blocks the further movement of the profile 2 to disengage from the second locking groove 12; thus, mutual locking can be achieved through the first locking groove 12 and the first locking groove 11, so as to balance the pressing and fixing efficiency and the locking reliability. See Figure 5 , in some embodiments, the first locking groove 11 is provided with the first guiding inclined wall 111, and the second locking groove 12 is provided with the second guiding inclined wall 121; considering that the direction of the sleeve body 1 separating from and entering the hole on the profile 2 is the axial direction F of the sleeve body 1, the axial direction F of the sleeve body 1 can be used as a reference direction to set the positions of the first guiding inclined wall 111 and the second guiding inclined wall 121.

[0045] On the axial direction F of the sleeve body 1, the second guiding inclined wall 121 is set as a part of the side wall of the second locking groove 12 far from the first locking groove 11, and the first guiding inclined wall 111 is set as a part of the side wall of the first locking groove 11 far from the second locking groove 12.

[0046] That is to say, the first guiding inclined wall 111 and the second guiding inclined wall 121 face in opposite directions on the axial direction F of the sleeve body 1. Thus, when the profile 2 separates from the sleeve body 1 along the axial direction F, one of the first guiding inclined wall 111 and the second guiding inclined wall 121 can guide the profile 2 to disengage from the first locking groove 11 or the second locking groove 12, and the locking groove where the other guiding inclined wall is located blocks the profile 2 from disengaging from the locking groove where it is located, so as to relatively weaken the influence of the guiding inclined wall on the separation of the profile 2 from the sleeve body 1 to a certain extent.

[0047] That is, when the sleeve body 1 is separated from the profile 2 along the axial direction F, the first guiding inclined wall 111 can guide the profile 2 to disengage from the first locking groove 11, and the second locking groove 12 blocks the further movement of the profile 2 to disengage from the first locking groove 11; the second guiding inclined wall 121 can guide the profile 2 to disengage from the second locking groove 12, and the first locking groove 11 blocks the further movement of the profile 2 to disengage from the second locking groove 12; thus, mutual locking can be achieved through the first locking groove 12 and the first locking groove 11, so as to balance the pressing and fixing efficiency and the locking reliability. See Figure 4 and Figure 5, in some embodiments, considering that the second guiding inclined wall 121 reduces the difficulty of the profile 2 disengaging from the second locking groove 12 to a certain extent, in order to strengthen the fastening reliability between the sleeve body 1 and the profile 2, a stop structure may be provided on the sleeve body 1 to block the movement of the profile 2 when the profile 2 moves in the direction of disengaging from the second locking groove 12 along the second guiding inclined wall 121.

[0048] Specifically, a part of the side wall of the first locking groove 11 can be set as the first thrust vertical wall 112, serving as a stop structure for blocking the profile 2 from disengaging from the second locking groove 12 along the second guiding inclined wall 121. Considering that on the axial direction F of the sleeve body 1, the guiding directions of the second guiding inclined wall 121 and the first guiding inclined wall 111 are opposite, when the profile 2 moves along one of the second guiding inclined wall 121 or the first guiding inclined wall 111, it moves relatively away from the other guiding inclined wall; therefore, on the axial direction F of the sleeve body 1, the first thrust vertical wall 112 is disposed opposite to the first guiding inclined wall 111 to block and stop the continuous movement of the profile 2 through the first thrust vertical wall 112 when the profile 2 disengages from the second locking groove 12 along the second guiding inclined wall 121.

[0049] Considering that the sleeve body 1 disengages from the profile 2 along its axial direction F, in order to maintain the stop locking reliability and stability of the first thrust vertical wall 112, the first thrust vertical wall 112 is orthogonal to the axial direction F of the sleeve body 1 or the first thrust vertical wall 112 inclines towards the first locking groove 11 to stably block the movement of the profile 2.

[0050] That is to say, through the stop limiting effect of the first thrust vertical wall 112, the adverse effect of the second guiding inclined wall 121 on the fastening reliability of the profile 2 is weakened. That is, the first thrust vertical wall 112 is used to realize the enhanced locking of the fastening effect of the first locking groove 11 on the second locking groove 12.

[0051] See Figure 4 and Figure 5 , in some embodiments, in order to strengthen the fastening reliability between the sleeve body 1 and the profile 2, on the basis of the first thrust vertical wall 112, a part of the side wall of the second locking groove 12 can also be set as the second thrust vertical wall 122, serving as a stop structure for blocking the profile 2 from disengaging from the first locking groove 11 along the first guiding inclined wall 111.

[0052] Considering that on the axial direction F of the sleeve body 1, the guiding directions of the first guiding inclined wall 111 and the second guiding inclined wall 121 are opposite, when the profile 2 moves along one of the first guiding inclined wall 121 or the second guiding inclined wall 121, it moves relatively away from the other guiding inclined wall; therefore, on the axial direction F of the sleeve body 1, the second thrust vertical wall 122 is disposed opposite to the second guiding inclined wall 121, so as to, when the profile 2 disengages from the first locking groove 11 along the first guiding inclined wall 111, abut and stop the continuous movement of the profile 2 through the first thrust vertical wall 122.

[0053] Considering that the sleeve body 1 disengages from the profile 2 along its axial direction F, in order to maintain the locking reliability and stability of the first thrust vertical wall 112, the first thrust vertical wall 112 is orthogonal to the axial direction F of the sleeve body 1 or the first thrust vertical wall 112 inclines towards the first locking groove 11, so as to stably stop the movement of the profile 2.

[0054] It should be noted that the first thrust vertical wall 112 and the second thrust vertical wall 122 can enable the cooperative cooperation of the first locking groove 11 and the second locking groove 12 to achieve interlocking, and to a certain extent reduce the adverse influence of the first guiding inclined wall 111 and the second guiding inclined wall 121 on the locking reliability between the profile 2 and the sleeve body 1.

[0055] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , in some embodiments, in order to facilitate the material flow of the profile 2, the surfaces of the first guiding inclined surface 111 and the second guiding inclined surface 121 located in the notch area can be set to be arc-shaped, so as to reduce the wear degree and can also reduce the material flow resistance of the profile 2 to a certain extent.

[0056] In some embodiments, considering that the material of the profile 2 has a certain strength and poor fluidity, the bottoms of the first locking groove 11 and the second locking groove 12 can be set to be arc-shaped to reduce the forms of areas such as slits or small-angle corners, and as much as possible expand the contact area between the profile 2 and the inner walls of the first locking groove 11 and the second locking groove 12, so as to expand the contact pressure and static friction force and increase the disengagement difficulty to a certain extent.

[0057] It should be noted that an arc-shaped connecting surface can be provided in the included angle area between the various profiles in the grooves of the first locking groove 11 and the second locking groove 12 to eliminate small-angle areas such as slits, thereby reducing the gap between the flowing material of the profile 2 and the inner profile surfaces of the first locking groove 11 and the second locking groove 12 to a certain extent, which helps to maintain the stability of the contact pressure and thus improve the stability of the locked state.

[0058] In some embodiments, in order to simplify the processing technology of the sleeve nut, the first locking groove 11 and / or the second locking groove 12 can be set as an annular groove arranged circumferentially along the outer wall of the sleeve body 1. At the same time, the annular groove itself can increase the locking contact area to a certain extent, thereby enhancing the locking reliability and stability.

[0059] Of course, it is not excluded that the first locking groove 11 and / or the second locking groove 12 are set into other forms of grooves; such as a plurality of discrete independent grooves, which are not specifically limited here.

[0060] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 and Figure 7 In some embodiments, in order to adapt to the use in certain specific scenarios and strengthen the fixed support strength of one end side of the sleeve body 1, a thrust plate 13 protruding from its outer peripheral surface can be provided at one side end of the sleeve body 1. When the sleeve nut is installed on the profile 2, the thrust plate 13 abuts against one side surface of the profile 2 to expand the unilateral stress area and disperse the stress to cope with a large unilateral stress; and reduce the risk of causing significant stress deformation on the surface of the profile 2, thereby helping to maintain the surface quality of the profile 2.

[0061] Generally speaking, the thrust plate 13 can be integrally provided with the first thrust vertical wall 112 or the second thrust vertical wall 122 at the same position; that is, the outer wall of one side of the thrust plate 13 serves as the first thrust vertical wall 112 or the second thrust vertical wall 122.

[0062] In some embodiments, considering that the groove depth of the first locking groove 11 and the second locking groove 12 is positively correlated with their locking performance, but an excessive groove depth will affect the structural strength of the sleeve body 1 and increase the risk of fracture; therefore, the groove depth of the first locking groove 11 and the second locking groove 12 can be set to 20% - 50% of the wall thickness of the sleeve body 1. For example, the groove depths of the first locking groove 11 and the second locking groove 12 are set to 20%, 25%, 30%, 35%, 40%, 45%, 50% of the wall thickness of the sleeve body 1 and other values between 20% - 50%.

[0063] Generally, when the tensile and shear strength of the sleeve body 1 is relatively good, the groove depths of the first locking groove 11 and the second locking groove 12 can be slightly larger.

[0064] In some embodiments, internal threads may be provided on the inner wall of the sleeve body 1 to adapt to various fasteners with bolt rods.

[0065] See Figure 6 and Figure 7 , in some embodiments, a method for installing a sleeve nut is further provided, based on the above-mentioned sleeve nut; and specifically includes: pressing the sleeve body 1 of the sleeve nut against the profile 2 by an external force, so that a part of the material of the profile 2 flows into the first locking groove 11 and the second locking groove 12 under the external pressure.

[0066] Generally, holes may be formed in the profile 2, and the sleeve body 1 of the sleeve nut is press-fitted into the holes of the profile 2, and is stably locked by engaging with a part of the material of the profile 2 through the first locking groove 11 and the second locking groove 12.

[0067] Generally, the length specification of the sleeve body 1 may be adapted to the depth of the hole of the profile 2, so that the two hole regions at the openings of the hole of the profile 2 are matched with the first locking groove 11 and the second locking groove 12. Thus, when the sleeve nut is press-fitted and installed, the materials at the two side hole regions of the hole on the profile 2 can be pressed into the first locking groove 11 and the second locking groove 12, thereby reducing the difficulty of material flow to a certain extent, enabling sufficient material of the profile 2 to flow into the first locking groove 11 and the second locking groove 12, and improving the press-fitting efficiency and the yield rate.

[0068] In some embodiments, the holes of the profile 2 are formed in a structural area with an inner cavity, two coaxial holes are formed in the shell of the profile 2, and the sleeve body 1 may penetrate through the inner cavity in the profile 2 and then be press-fitted and connected to the two coaxial holes on the profile 2 respectively.

[0069] Correspondingly, the two coaxial holes are press-fitted and connected to the first locking groove 11 and the second locking groove 12 respectively.

[0070] Generally, the length of the hole of the profile 2 should be greater than the groove widths of the first locking groove 11 and the second locking groove 12 to prevent the whole hole from being stuck in the grooves of the first locking groove 11 and the second locking groove 12 and affecting the reliability of locking.

[0071] The embodiments of the present application have at least the following beneficial effects:

[0072] The sleeve nut and the installation method thereof provided by the embodiment of the present application, the sleeve nut includes a sleeve body and a thrust plate located at one end thereof; first locking grooves and second locking grooves are respectively formed on the outer peripheral surfaces of the two axial ends of the sleeve body. When fixed to the profile through a pressing process, it can accommodate part of the profile material, thereby stably fixing the sleeve body on the profile, improving the fixing reliability and stability; at the same time, the first locking groove and the second locking groove can be arranged in the end regions of the sleeve body, matching the edge regions of the holes close to the profile, facilitating the flow of the profile material into them, and to a certain extent, improving the pressing and fixing efficiency and the fixing yield rate of the sleeve body and the profile. On the other hand, the processing technology of the first locking groove and the second locking groove is simple, efficient and low-cost, and is more convenient for mass production and processing. The outer peripheral edge of the thrust plate protrudes from the outer peripheral surface of the sleeve body to abut against the profile when installed on the profile, expanding the force-bearing area, dispersing the force, and reducing the risk of profile deformation.

[0073] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include that the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the first feature has a lower horizontal height than the second feature.

[0074] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application 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, and thus should not be construed as a limitation to the present application.

[0075] It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0076] In this application, unless otherwise clearly specified or limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; 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 components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0077] In addition, in this application, descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of this application, "a plurality" means two or more, unless otherwise clearly and specifically defined.

[0078] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0079] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on what can be achieved by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0080] Although the embodiments of this application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and purpose of this application, and the scope of this application is defined by the claims and their equivalents.

Claims

1. A sleeve nut, characterized in that, Comprising: A sleeve body, on the outer peripheral surface of which a first locking groove and a second locking groove are respectively formed, and the first locking groove and the second locking groove are respectively arranged at two axial ends of the sleeve body, so as to match and be close to the edge area of the hole in the profile when installed in the hole formed in the profile, facilitating the material flow of the profile to enter; A thrust disc, arranged at one end of the sleeve body, and the outer peripheral edge of the thrust disc protrudes from the outer peripheral surface of the sleeve body, so as to abut against the surface of the profile when installed on the profile.

2. The sleeve nut according to claim 1, characterized in that, Part of the side wall of the first locking groove is set as a first guiding inclined wall, and the top of the first guiding inclined wall inclines outward towards the outside of the groove.

3. The sleeve nut according to claim 2, wherein Part of the side wall of the second locking groove is set as a second guiding inclined wall, the second guiding inclined wall inclines towards the outside of the groove, and in the axial direction of the sleeve body, the second guiding inclined wall is set as the side wall of the second locking groove far from the first locking groove, and the first guiding inclined wall is set as the side wall of the first locking groove far from the second locking groove.

4. The sleeve nut according to claim 2, characterized in that, Part of the side wall of the second locking groove is set as a second guiding inclined wall, the second guiding inclined wall inclines towards the outside of the groove, and in the axial direction of the sleeve body, the second guiding inclined wall is set as the side wall of the second locking groove close to the first locking groove, and the first guiding inclined wall is set as the side wall of the first locking groove close to the second locking groove.

5. The sleeve nut according to claim 3 or 4, characterized in that, Part of the side wall of the first locking groove is set as a first thrust vertical wall, the first thrust vertical wall is orthogonal to the axial direction of the sleeve body or the first thrust vertical wall inclines towards the inside of the first locking groove, and in the axial direction of the sleeve body, the first thrust vertical wall is oppositely arranged with the first guiding inclined wall.

6. The sleeve nut according to claim 5, wherein, The side wall of the thrust disc close to the first locking groove is set as the first thrust vertical wall.

7. The sleeve nut according to claim 5, characterized in that, Part of the side wall of the second locking groove is set as a second thrust vertical wall, the second thrust vertical wall is orthogonal to the axial direction of the sleeve body or the second thrust vertical wall inclines towards the inside of the second locking groove, and in the axial direction of the sleeve body, the second thrust vertical wall is oppositely arranged with the second guiding inclined wall.

8. The sleeve nut according to claim 1, characterized in that, The first locking groove and / or the second locking groove is an annular groove arranged along the circumferential direction of the sleeve body.

9. The sleeve nut according to claim 1, characterized in that, The depths of the first locking groove and the second locking groove are 20% - 50% of the wall thickness of the sleeve body.

10. A method for installing a sleeve nut, characterized in that, Comprising: Pressing the sleeve nut according to any one of claims 1 - 9 and the profile by an external force, so that part of the material of the profile is respectively filled into the first locking groove and the second locking groove.

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