Locking structure

Abstract

The utility model relates to a locking structure. The locking structure provided by the utility model comprises a locking piece and a locking piece, wherein the locking piece is provided with a first limiting part and a second limiting part; one end face of the first limiting part is connected with an object to be connected, and the second limiting part is connected to the end face, away from the object to be connected, of the first limiting part. A mounting hole matched with the locking piece is formed in the mounting plate; the first limiting part is provided with two abutting surfaces; the two abutting faces are oppositely arranged and are perpendicular to or inclined to the end face, connected with the object to be connected, of the first limiting part. The first limiting part can rotate in the mounting hole until the two abutting surfaces abut against the inner wall of the mounting hole at the same time. The locking structure provided by the utility model can realize real locking connection between the object to be connected and the mounting plate, and is convenient to disassemble and assemble, simple to operate and high in universality, so that the disassembly and assembly difficulty and cost are reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connection, in particular to a locking structure. Background Art

[0002] In existing heat pump units, the components are often fastened by means of clips, screws, bolts and nuts during installation, so that the components of the heat pump unit can operate stably and will not become loose due to vibration. However, these fixed connection methods in the past required multiple steps to complete the fixed connection of each component and the subsequent disassembly during maintenance, resulting in the entire disassembly and assembly process being cumbersome and complicated. In addition, the use of a large number of screws and bolts during the disassembly and assembly process will also cause damage to each unit, which will undoubtedly increase production and maintenance costs and is not conducive to improving production efficiency. Utility Model Content

[0003] Based on this, the purpose of the utility model is to provide a locking structure, in which a locking piece is arranged on the object to be connected, and a mounting hole matching the locking piece is opened on a mounting plate for fixing the object to be connected. By designing the locking piece and the mounting hole, without the need for additional screws, the locking piece can be rotated so that its two opposite ends abut against the inner wall of the mounting hole to achieve a true locking connection between the object to be connected and the mounting plate. The structure has convenient disassembly and assembly, simple operation, and strong versatility, thereby reducing the difficulty and cost of disassembly and assembly and improving production efficiency.

[0004] A locking structure, comprising:

[0005] The locking member is provided with a first limiting portion and a second limiting portion; one end surface of the first limiting portion is connected to the object to be connected, and the second limiting portion is connected to an end surface of the first limiting portion away from the object to be connected;

[0006] A mounting plate having a mounting hole matching the locking member;

[0007] The first limiting portion is provided with two abutment surfaces; the two abutment surfaces are arranged opposite to each other and are perpendicular or inclined to the end surface where the first limiting portion is connected to the object to be connected; the first limiting portion can rotate in the mounting hole until the two abutment surfaces abut against the inner wall of the mounting hole at the same time.

[0008] Furthermore, the two abutting surfaces are arc surfaces, and the protruding directions of the two arc surfaces are both away from the middle direction of the first limiting portion.

[0009] Further, the end surface where the first limiting portion and the second limiting portion are connected is defined as a connecting surface, the connecting surface is a plane, and along the length direction of the connecting surface, the length of the second limiting portion is greater than the length of the first limiting portion.

[0010] Further, the mounting hole includes a first via hole, a second via hole and a third via hole;

[0011] The first limiting portion rotates in the first via hole until the two abutting surfaces abut against the inner wall of the first via hole at the same time, and the second via hole and the third via hole are respectively connected to the first via hole to form two gaps.

[0012] Furthermore, the inner wall of the first via hole located on one side of the two notches is provided with a straight surface and a first arc surface; the straight surface and the first arc surface are extended and connected, and the protruding direction of the first arc surface is away from the center direction of the first via hole;

[0013] The inner wall of the first via hole located on the other side of the two notches is provided with a second arc surface and a third arc surface; the second arc surface and the third arc surface are extended and connected, and the protruding directions are both away from the center direction of the first via hole;

[0014] The curvature of the second arc surface is greater than or less than the curvature of the third arc surface.

[0015] Furthermore, a first left arc surface and a second left arc surface are provided on the inner wall of the first via hole located on one side of the two notches; the first left arc surface and the second left arc surface are extended and connected, and the protruding directions are both away from the center direction of the first via hole;

[0016] A first right arc surface and a second right arc surface are provided on the inner wall of the first via hole located on the other side of the two notches; the first right arc surface and the second right arc surface are extended and connected, and the protruding directions are both away from the center direction of the first via hole;

[0017] The curvature of the first left circular arc surface is smaller than the curvature of the second left circular arc surface, and the curvature of the first right circular arc surface is larger than the curvature of the second right circular arc surface; or, the curvature of the first left circular arc surface is larger than the curvature of the second left circular arc surface, and the curvature of the first right circular arc surface is smaller than the curvature of the second right circular arc surface.

[0018] Furthermore, the second limiting portion is provided with a first folded edge and a second folded edge;

[0019] One end of the first folded edge is connected to the connecting surface, and the other end is extended in a direction away from the object to be connected;

[0020] One end of the second folded edge is connected to a side surface of the first folded edge, and the other end is extended away from the first folded edge.

[0021] Furthermore, the extending direction of the first folded edge is perpendicular to the connecting surface, and the extending direction of the second folded edge is parallel to the connecting surface;

[0022] In the locked state, the second folded edge abuts against a side of the mounting plate facing away from the object to be connected.

[0023] Furthermore, it also includes:

[0024] The elastic member is sandwiched between the object to be connected and the locking member.

[0025] Furthermore, the locking member further comprises a connecting portion, wherein the connecting portion is fixedly connected to an end surface of the first limiting portion away from the second limiting portion;

[0026] The objects to be connected are provided with through holes, and the connecting part is inserted into the through holes.

[0027] The beneficial effects of the utility model are:

[0028] (1) A locking member is provided on the object to be connected, and a mounting hole matching the locking member is provided on a mounting plate for fixing the object to be connected. By designing the locking member and the mounting hole, the locking member can be rotated to make both opposite ends abut against the inner wall of the mounting hole without the need for additional screws to fix, so as to achieve a real locking connection between the object to be connected and the mounting plate. The assembly and disassembly is convenient, the operation is simple, and the versatility is strong, thereby reducing the difficulty and cost of assembly and disassembly and improving production efficiency.

[0029] (2) By setting the two abutting surfaces of the first limiting portion to arc surfaces and simultaneously setting a plurality of arc surfaces in the first through hole, the arc surfaces of the first limiting portion can rotate more smoothly along the arc surfaces of the first through hole;

[0030] At the same time, a plurality of arc surfaces with different curvatures are arranged on the inner wall of the first through hole, so that after the first limiting portion is rotated counterclockwise or clockwise to a certain angle, the end of the abutting surface of the first limiting portion abuts against the arc surface of the first through hole, thereby realizing a locking connection between the first limiting portion and the first through hole;

[0031] (3) By providing the second limiting portion, it is possible to prevent the locking member from slipping out of the mounting hole after the first limiting portion is locked and connected with the first through hole, thereby stabilizing the connection between the locking member and the mounting plate;

[0032] At the same time, by setting the second limiting portion as a first folded edge and a second folded edge connected to each other, in the locked state, the first folded edge can play a limiting role on the one hand, and facilitate the operator's rotation operation on the other hand, and the second folded edge can abut against the side of the mounting plate away from the object to be connected, thereby further improving the locking performance;

[0033] (4) By sandwiching an elastic member between the locking member and the object to be connected, it can be used to reduce the collision between the object to be connected and the mounting plate after the two are locked and connected. At the same time, it can also eliminate processing errors and further stabilize the locked connection.

[0034] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A diagram of an initial state in which an object to be connected and a mounting plate are connected via a locking structure provided in an embodiment of the present application;

[0036] Figure 2 A diagram showing a locking state in which an object to be connected and a mounting plate are connected via a locking structure provided in an embodiment of the present application;

[0037] Figure 3 A schematic diagram of the locking member structure provided in an embodiment of the present application;

[0038] Figure 4 A side view of a locking member provided in an embodiment of the present application;

[0039] Figure 5 A schematic diagram of a mounting hole provided in a mounting plate according to an embodiment of the present application;

[0040] Figure 6 A schematic diagram of a locking member and a mounting hole provided in an embodiment of the present application facing each other;

[0041] Figure 7 A schematic diagram of a mounting hole provided in a mounting plate according to another embodiment of the present application;

[0042] Figure 8 This is a schematic diagram of another embodiment of the present application showing a locking member facing a mounting hole.

[0043] In the figure: 1-object to be connected; 10-locking member; 11-first limiting portion; 111-abutting surface; 12-second limiting portion; 121-first folded edge; 122-second folded edge; 13-connecting portion; 20-mounting plate; 20a-mounting hole; 21-first through hole; 211-flat surface; 212-first arc surface; 213-second arc surface; 214-third arc surface; 215a-first left arc surface; 215b-second left arc surface; 216a-first right arc surface; 216b-second right arc surface; 22-second through hole; 23-third through hole; 30-elastic member. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] In the description of the present invention, it should be noted that the terms "vertical direction", "upper", "lower", "horizontal" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0046] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In order to ensure the stable operation of the existing heat pump units, it is necessary to use a cumbersome and complicated connection method for fixed connection, which brings great inconvenience to the technicians for disassembly and assembly, and is easy to damage the panels on the outside of each unit, which undoubtedly increases the production and maintenance costs and reduces production efficiency. Not only in the assembly of the components of the heat pump unit, but also in the assembly of other parts in production, the relevant technicians hope to achieve the stable locking of the parts while completing this operation quickly and easily. There are also existing connection structures that lock the two objects by rotation after connection, but there is a problem of looseness after locking. After analysis, it is found that after the rotation is locked, there will be a situation of rotation. In the final analysis, it is because the locking is not truly achieved. Especially when the machine is vibrating during operation, the situation of rotation looseness is more obvious, which seriously affects the normal operation of the machine.

[0048] Based on this, the utility model provides a locking structure, in which a locking piece is arranged on the object to be connected, and a mounting hole matching the locking piece is opened on a mounting plate for fixing the object to be connected. By designing the locking piece and the mounting hole, without the need for additional screws, the locking piece can be rotated so that its two opposite ends abut against the inner wall of the mounting hole, so as to realize a true locking connection between the object to be connected and the mounting plate. The structure has the advantages of convenient disassembly and assembly, simple operation and strong versatility, thereby reducing the difficulty and cost of disassembly and assembly and improving production efficiency.

[0049] Please also see Figure 1 and Figure 2The embodiment of the present application provides a locking structure for fixing and locking the object 1 to be connected. The locking structure includes a locking member 10 and a mounting plate 20. The mounting plate 20 is provided with a mounting hole 20a matching the locking member 10. The locking member 10 cooperates with the mounting hole 20a to achieve a locking connection between the object 1 to be connected and the mounting plate 20. It is understandable that the locking member 10 can also be fixed on the mounting plate 20, and the mounting hole 20a is provided on a side panel of the object 1 to be connected.

[0050] Please also see Figure 3 and Figure 4 Specifically, the locking member 10 is provided with a first limiting portion 11 and a second limiting portion 12, one end face of the first limiting portion 11 is connected to the panel of the object to be connected 1, and the second limiting portion 12 is connected to an end face of the first limiting portion 11 away from the object to be connected 1.

[0051] The first limiting portion 11 can be directly connected to the object 1 to be connected by screw connection, snap connection, adhesion, etc. Considering the stability of the connection between the locking member 10 and the object 1 to be connected, and the convenience of connection, in this embodiment, the locking member 10 is further provided with a connecting portion 13, and the first limiting portion 11 is connected to the object 1 to be connected through the connecting portion 13. One end of the connecting portion 13 is connected to an end face of the first limiting portion 11 away from the second limiting portion 12, and a through hole matching the connecting portion 13 is provided on the panel of the object 1 to be connected. The connecting portion 13 is inserted into the through hole to achieve a stable connection between the locking member 10 and the object 1 to be connected. Preferably, a side of the first limiting portion 11 close to the object 1 to be connected abuts against the object 1 to be connected, so that when the locking member 10 is connected to the mounting plate 20, the distance between the panel abutting the object 1 to be connected and the first limiting portion 11 and the mounting plate 20 is reduced as much as possible, thereby further improving the stability of the connection.

[0052] The first limiting portion 11 is provided with two abutting surfaces 111, which are arranged opposite to each other and are perpendicular or inclined to the end surface of the first limiting portion 11 connected to the object 1 to be connected. The first limiting portion 11 can rotate in the mounting hole 20a until the two abutting surfaces 111 abut against the inner wall of the mounting hole 20a at the same time. In this embodiment, in order to make the first limiting portion 11 rotate more smoothly on the inner wall surface of the mounting hole 20a, the two abutting surfaces 111 are both set as arc surfaces, and the protruding directions of the two arc surfaces are both away from the middle direction of the first limiting portion 11. When the first limiting portion 11 rotates to a certain angle in the clockwise or counterclockwise direction, the ends of the two arc surfaces abut against the inner wall of the mounting hole 20a at the same time. At this time, the first limiting portion 11 is restricted at the abutment position to achieve locking. Preferably, the first limiting portion 11 is waist-shaped.

[0053] The second limiting portion 12 is in the shape of an elongated strip, and the end surface where the first limiting portion 11 and the second limiting portion 12 are connected is defined as a connecting surface, and the connecting surface is a plane, and one end of the second limiting portion 12 in the width direction is connected to the connecting surface, and the other end is extended in a direction away from the object to be connected 1. In the locked state, the length direction of the second limiting portion 12 is at a certain angle to the length direction of the mounting hole 20a, and in order to prevent the second limiting portion 12 from completely falling into the mounting hole 20a and causing the entire locking member 10 to move out of the mounting hole 20a, the length of the second limiting portion 12 along the length direction of the connecting surface is greater than the length of the first limiting portion 11.

[0054] Specifically, the second limiting portion 12 is provided with a first folded edge 121 and a plurality of second folded edges 122. The first folded edge 121 is rectangular, one end of which in the width direction is connected to the connection surface, and the other end is extended in a direction away from the object to be connected 1. One end of the second folded edge 122 is connected to a side surface of the first folded edge 121, and the other end is extended away from the first folded edge 121, wherein the side surface where the first folded edge 121 and the second folded edge 122 are connected is perpendicular to the connection surface. The second folded edge 122 is specifically two and rectangular, and is respectively connected to the two ends of the length direction of the side surface where the first folded edge 121 and the second folded edge 122 are connected. In other embodiments, the second folded edge 122 can also be set as one, and one second folded edge 122 is connected to one end of the length direction of the side surface where the first folded edge 121 and the second folded edge 122 are connected, or the second folded edge 122 is set as a whole, and its length is equal to or greater than the length of the first folded edge 121 in the length direction. At this time, the second folded edge 122 is connected to the end of the length direction of the side surface where the first folded edge 121 and the second folded edge 122 are connected. Preferably, the extension direction of the first folded edge 121 is perpendicular to the connecting surface, and the extension direction of the second folded edge 122 is parallel to the connecting surface. In the locked state, the second folded edge 122 abuts against the side of the mounting plate 20 that is away from the object 1 to be connected. Therefore, in the locked state, the first folded edge 121 not only plays a limiting role, but also facilitates the staff to rotate the first limiting part 11 in the mounting hole 20a. The second folded edge 122 abuts against the side of the mounting plate 20 away from the object to be connected 1, so as to further enhance the locking ability between the locking member 10 and the mounting plate 20.

[0055] It is understandable that, in other embodiments, the first folded edge 121 and the second folded edge 122 may also be long strips of other shapes, such as arc-shaped ends, but the present invention is not limited thereto.

[0056] Please also see Figure 5 and Figure 6, the mounting hole 20a includes a first through hole 21, a second through hole 22 and a third through hole 23. The first through hole 21 is used to clamp the first limiting portion 11, and the first limiting portion 11 rotates in the first through hole 21 until the two abutting surfaces 111 abut against the inner wall of the first through hole 21 at the same time, so that the first limiting portion 11 is in a locked state. The second through hole 22 and the third through hole 23 are respectively connected to the first through hole 21 to form two gaps. The second through hole 22 and the third through hole 23 are square holes, which are used for the second limiting portion 12 to pass from one side of the mounting plate 20 to the other side. Similarly, the shapes of the second through hole 22 and the third through hole 23 matching the second limiting portion 12 are not limited to square, but can also be other shapes, such as arc-shaped ends.

[0057] In this embodiment, one end of the second limiting portion 12 in the width direction is connected to the edge of the connecting surface or other positions, so that the mounting hole 20a matched with the locking member 10 is a special-shaped long hole, and the two notches are staggeredly distributed on the edge of the first through hole 21. Since the two notches are staggeredly distributed on the edge of the first through hole 21, a boss is formed between the second through hole 22 and the third through hole 23. Compared with a regular mounting hole, when the locking member 10 is clamped in the mounting hole 20a, the boss can play a limiting role, making it more difficult for the locking member 10 to be removed from the mounting hole 20a. In order to make the first limiting portion 11 rotate more smoothly in the first through hole 21, after the first limiting portion 11 rotates counterclockwise or clockwise to a certain angle, the ends of the two abutting surfaces 111 abut against the inner wall of the first through hole 21 to achieve a locking connection between the first limiting portion 11 and the first through hole 21, a straight surface 211 and a first arc surface 212 are provided on the inner wall of the first through hole 21 on one side of the two notches, and the protruding direction of the first arc surface 212 is away from the center direction of the first through hole 21, and the straight surface 211 and the first arc surface 212 are extended and connected to form a first endpoint at the connection; a second arc surface 213 and a third arc surface 214 are provided on the inner wall of the first through hole 21 on the other side of the two notches, and the protruding directions of the second arc surface 213 and the third arc surface 214 are both away from the center direction of the first through hole 21, and the second arc surface 213 and the third arc surface 214 are extended and connected to form a second endpoint at the connection. The curvature of the second arc surface 213 is greater than the curvature of the third arc surface 214. Accordingly, when the first limiter 11 rotates counterclockwise until the ends of the two abutting surfaces 111 abut against the first end point and the second end point, the first annular surface 212 is tightened downward at the first end point, and the third arc surface 214 is tightened upward at the second end point. At this time, the first limiter 11 cannot continue to rotate, and finally achieves locking. It can be understood that when the position setting of the straight surface 211 and the first arc surface 212 is interchanged with the position of the second arc surface 213 and the third arc surface 214, and the curvature of the second arc surface 213 is less than the curvature of the third arc surface 214, the first limiter 11 can rotate clockwise to achieve the locking function. In addition, the first endpoint and the second endpoint can be located at any position on the inner wall of the first via 21. The positions of the first endpoint and the second endpoint are different, and the angle of rotation required for the first limiting portion 11 to achieve locking is also different. Preferably, the line connecting the first endpoint and the second endpoint is perpendicular to the center line of the length direction of the second via 22 and the third via 23. At this time, the first limiting portion 11 can be rotated 90° to achieve maximum locking.

[0058] Please also see Figure 1 and Figure 2, since the first limiting portion 11 needs to be rotated 90° to achieve locking, in order to make the position of the object 1 to be connected after being rotated and locked on the mounting plate 20 to be the position in normal use, the length direction of the locking member 10 after being installed on the object 1 to be connected is perpendicular to the length direction of the mounting hole 20a. In this way, the object 1 to be connected is first tilted 90° and placed so that the locking member 10 is opposite to the mounting hole 20a, the second limiting portion 12 passes through the mounting hole 20a to the other side of the mounting plate 20, and the first limiting portion 11 enters the first through hole 21, and the edge is opposite to the inner wall of the first through hole 21. The object 1 to be connected or the second limiting portion 12 is rotated until the first limiting portion 11 abuts against the inner wall of the first through hole 21 and is in a locked state. At this time, the object 1 to be connected is in the position in normal use after being rotated 90°.

[0059] Please also see Figure 7 and Figure 8In another embodiment, one end of the second limiting portion 12 in the width direction is connected to the connecting surface, and its projection on the connecting surface along the center line of the length direction of the first limiting portion 11 coincides with the center line of the length direction of the connecting surface. At this time, the mounting hole 20a matching the locking member 10 is a regular elongated hole, and the two notches are opposite to each other. Similarly, in order to enable the first limiting portion 11 to be locked in the first through hole 21, the inner wall of the first through hole 21 located on one side of the two notches is provided with a first left arc surface 215a and a second left arc surface 215b, the protruding directions of the first left arc surface 215a and the second left arc surface 215b are both away from the center direction of the first through hole 21, and one end of the first left arc surface 215a and one end of the second left arc surface 215b are extended and connected to form a third endpoint at the connection; the inner wall of the first through hole 21 located on the other side of the two notches is provided with a first right arc surface 216a and a second right arc surface 216b, the protruding directions of the first right arc surface 216a and the second right arc surface 216b are both away from the center direction of the first through hole 21, and one end of the first right arc surface 216a and one end of the second right arc surface 216b are extended and connected to form a fourth endpoint at the connection. At the same time, it is necessary to ensure that the curvature of the first left arc surface 215a is smaller than the curvature of the second left arc surface 215b, and the curvature of the first right arc surface 216a is greater than the curvature of the second right arc surface 216b. At this time, the first limiting portion 11 rotates counterclockwise until the two ends of the two abutting surfaces 111 abut against the third endpoint and the fourth endpoint respectively. At the third endpoint, the second left arc surface 215b is tightened downward, and at the fourth endpoint, the first right arc surface 216a is tightened upward, and the first limiting portion 11 cannot continue to rotate, thereby achieving locking. Alternatively, the curvature of the first left arc surface 215a is greater than the curvature of the second left arc surface 215b, and the curvature of the first right arc surface 216a is less than the curvature of the second right arc surface 216b. At this time, the first limiter 11 rotates clockwise until the two ends of the two abutting surfaces 111 abut against the third end and the fourth end, respectively. At the fourth end, the second right arc surface 216b is tightened downward, and at the third end, the first left arc surface 215a is tightened upward, and the first limiter 11 cannot continue to rotate, thereby achieving locking. In addition, the third end and the fourth end can be located at any position of the inner wall of the first via 21. The positions of the third end and the fourth end are different, and the angle of rotation required for the first limiter 11 to achieve locking is also different. As a preferred embodiment, the line connecting the third end and the fourth end is perpendicular to the center line of the length direction of the second via 22 and the third via 23. At this time, the first limiter 11 can achieve maximum locking by rotating 90°.

[0060] In a further embodiment, the locking structure further includes an elastic member 30, which is sandwiched between the object 1 to be connected and the locking member 10. The elastic member 30 is specifically a high-density sponge pad, one side of which is in contact with the panel of the object 1 to be connected. The locking member 10 cooperates with the elastic member 30. When the locking is completed, the elastic force of the elastic member 30 will eliminate the original possible processing matching error, so that the entire locking structure is more firm and compact. At the same time, the elastic member 30 can also be used to reduce the collision between the object 1 to be connected and the mounting plate 20 after the two are locked and connected.

[0061] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0062] (1) A locking member is provided on the object to be connected, and a mounting hole matching the locking member is provided on a mounting plate for fixing the object to be connected. By designing the locking member and the mounting hole, the locking member can be rotated to make both opposite ends abut against the inner wall of the mounting hole without the need for additional screws to fix, so as to achieve a real locking connection between the object to be connected and the mounting plate. The assembly and disassembly is convenient, the operation is simple, and the versatility is strong, thereby reducing the difficulty and cost of assembly and disassembly and improving production efficiency.

[0063] (2) By setting the two abutting surfaces of the first limiting portion to arc surfaces and simultaneously setting a plurality of arc surfaces in the first through hole, the arc surfaces of the first limiting portion can rotate more smoothly along the arc surfaces of the first through hole;

[0064] At the same time, a plurality of arc surfaces with different curvatures are arranged on the inner wall of the first through hole, so that after the first limiting portion is rotated counterclockwise or clockwise to a certain angle, the end of the abutting surface of the first limiting portion abuts against the arc surface of the first through hole, thereby realizing a locking connection between the first limiting portion and the first through hole;

[0065] (3) By providing the second limiting portion, it is possible to prevent the locking member from slipping out of the mounting hole after the first limiting portion is locked and connected with the first through hole, thereby stabilizing the connection between the locking member and the mounting plate;

[0066] At the same time, by setting the second limiting portion as a first folded edge and a second folded edge connected to each other, in the locked state, the first folded edge can play a limiting role on the one hand, and facilitate the operator's rotation operation on the other hand, and the second folded edge can abut against the side of the mounting plate away from the object to be connected, thereby further improving the locking performance;

[0067] (4) By sandwiching an elastic member between the locking member and the object to be connected, it can be used to reduce the collision between the object to be connected and the mounting plate after the two are locked and connected. At the same time, it can also eliminate processing errors and further stabilize the locked connection.

[0068] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.

Claims

1. A locking structure, characterized in that: include: The locking member is provided with a first limiting portion and a second limiting portion; one end surface of the first limiting portion is connected to the object to be connected, and the second limiting portion is connected to an end surface of the first limiting portion away from the object to be connected; A mounting plate having a mounting hole matching the locking member; The first limiting portion is provided with two abutment surfaces; the two abutment surfaces are arranged opposite to each other and are perpendicular or inclined to the end surface where the first limiting portion is connected to the object to be connected; the first limiting portion can rotate in the mounting hole until the two abutment surfaces abut against the inner wall of the mounting hole at the same time.

2. The locking structure according to claim 1, characterized in that: The two abutting surfaces are arc surfaces, and the protruding directions of the two arc surfaces are both away from the middle direction of the first limiting portion.

3. The locking structure according to claim 2, characterized in that: The end surface where the first limiting portion and the second limiting portion are connected is defined as a connecting surface. The connecting surface is a plane. Along the length direction of the connecting surface, the length of the second limiting portion is greater than the length of the first limiting portion.

4. The locking structure according to claim 3, characterized in that: The mounting holes include a first via hole, a second via hole and a third via hole; The first limiting portion rotates in the first via hole until the two abutting surfaces abut against the inner wall of the first via hole at the same time, and the second via hole and the third via hole are respectively connected to the first via hole to form two gaps.

5. The locking structure according to claim 4, characterized in that: The inner wall of the first via hole located on one side of the two notches is provided with a straight surface and a first arc surface; the straight surface and the first arc surface are extended and connected, and the protruding direction of the first arc surface is away from the center direction of the first via hole; The inner wall of the first via hole located on the other side of the two notches is provided with a second arc surface and a third arc surface; the second arc surface and the third arc surface are extended and connected, and the protruding directions are both away from the center direction of the first via hole; The curvature of the second arc surface is greater than or less than the curvature of the third arc surface.

6. The locking structure according to claim 4, characterized in that: A first left arc surface and a second left arc surface are provided on the inner wall of the first via hole located on one side of the two notches; the first left arc surface and the second left arc surface are extended and connected, and the protruding directions are both away from the center direction of the first via hole; A first right arc surface and a second right arc surface are provided on the inner wall of the first via hole located on the other side of the two notches; the first right arc surface and the second right arc surface are extended and connected, and the protruding directions are both away from the center direction of the first via hole; The curvature of the first left circular arc surface is smaller than the curvature of the second left circular arc surface, and the curvature of the first right circular arc surface is larger than the curvature of the second right circular arc surface; or, the curvature of the first left circular arc surface is larger than the curvature of the second left circular arc surface, and the curvature of the first right circular arc surface is smaller than the curvature of the second right circular arc surface.

7. The locking structure according to any one of claims 3 to 6, characterized in that: The second limiting portion is provided with a first folding edge and a second folding edge; One end of the first folded edge is connected to the connecting surface, and the other end is extended in a direction away from the object to be connected; One end of the second folded edge is connected to a side surface of the first folded edge, and the other end is extended away from the first folded edge.

8. The locking structure according to claim 7, characterized in that: The extending direction of the first folded edge is perpendicular to the connecting surface, and the extending direction of the second folded edge is parallel to the connecting surface; In the locked state, the second folded edge abuts against a side of the mounting plate facing away from the object to be connected.

9. The locking structure according to claim 8, characterized in that: Also includes: The elastic member is sandwiched between the object to be connected and the locking member.

10. The locking structure according to claim 9, characterized in that: The locking member further comprises a connecting portion, wherein the connecting portion is fixedly connected to an end surface of the first limiting portion away from the second limiting portion; The objects to be connected are provided with through holes, and the connecting part is inserted into the through holes.

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