Flange face slotted nut

Abstract

The flange face slotted nut comprises a nut body, a threaded rod is contained in the nut body and connected with the nut body in a threaded mode, communicating holes are formed in the side wall of the threaded rod, fastening grooves are formed in the nut body from top to bottom along the side wall, the communicating holes are located in the center faces of the two end faces of the nut body, and the fastening grooves correspond to the communicating holes in position; a gasket with an opening in one side and sleeving the screw is arranged below the bottom end of the nut body, the opening direction of the gasket corresponds to the direction of the communicating hole, and the thickness of the gasket corresponds to the screw pitch of the screw; positioning pins which are oppositely arranged and transversely penetrate through the communicating holes are arranged at the ends, away from the opening direction, of the gaskets, and positioning structures clamped in the fastening grooves are arranged on the positioning pins. The nut has the effects that the position of the nut can be adjusted, and the nut with the slotted flange face is matched with the hole of the screw.

Description

Technical Field

[0001] This application relates to the field of nut technology, and in particular to a flange face slotted nut. Background Technology

[0002] A slotted nut is a hexagonal nut with a square slot machined into its top. It is used in conjunction with a bolt with a hole and a cotter pin to prevent the bolt and nut from rotating relative to each other.

[0003] Ordinary hexagonal nuts typically have six slots to accommodate the angle of the hole on the screw. However, due to the influence of machining accuracy, not all the slots of the nut can be perfectly aligned with the slotted area. If the hole on the screw is aligned with the side wall of the nut that is not slotted, the only way to align the hole with the slot is to continue tightening or loosening the nut. Since slotted nuts are mostly used in devices operating under vibration, this will reduce assembly stability. In response to the above-mentioned related technologies, the applicant has proposed a flange slotted nut that can adjust the nut position so that the slot matches the hole on the screw. Utility Model Content

[0004] In order to provide a flange face slotted nut that allows the nut position to be adjusted so that the slotted part matches the opening of the screw, this application provides a flange face slotted nut.

[0005] The flange slotted nut provided in this application adopts the following technical solution:

[0006] A grooved nut for a flange face includes a nut body, a screw rod screwed into the nut body, a connecting hole formed in the side wall of the screw rod, and a fastening groove formed along the side wall of the nut body from top to bottom. The connecting hole is located on the center surface of both ends of the nut body, and the fastening groove is positioned corresponding to the position of the connecting hole. A washer with an opening on one side is provided below the bottom of the nut body and is fitted onto the screw rod. The opening direction of the washer corresponds to the direction of the connecting hole, and the thickness of the washer corresponds to the pitch of the screw rod. A locating pin is provided at the end of the washer away from the opening direction and is positioned opposite to it and passes laterally through the connecting hole. The locating pin has a positioning structure that engages with the fastening groove.

[0007] By adopting the above technical solution, and by adjusting the auxiliary support of the shims, the fastening groove on the nut body is set to correspond with the connecting hole on the side wall of the screw. This design makes the nut more supportive after installation. The positioning pin is inserted laterally into the connecting hole, and a positioning structure that engages with the fastening groove is set on the positioning pin. This design achieves precise axial positioning of the nut and prevents rotation.

[0008] Preferably, the positioning structure includes a positioning groove, a positioning ball, and an elastic connecting piece. The positioning groove is respectively opened on the side wall of the fastening groove, and the height of the positioning groove is set corresponding to the center surface of both ends of the nut body. One end of the elastic connecting piece is fixed to the end of the washer away from the opening and extends upward, and the other end is fixed to the positioning pin. The positioning ball is respectively fixed to the opposite end of the positioning pin away from each other, and the positioning ball is accommodated in the corresponding positioning groove. The positioning pins on both sides are interference fit.

[0009] By adopting the above technical solution, the matching design of the positioning ball and the positioning groove ensures that the positioning ball can automatically fall into the corresponding positioning groove during the assembly process, achieving fast and accurate centering, which helps to improve assembly efficiency and reduce installation errors. The introduction of the elastic connecting piece adds flexibility and facilitates installation.

[0010] Preferably, the locating pin is located at one end relative to the elastic connecting piece in the locking structure. The locking structure includes a locking ball and a locking handle. The locking ball is fixed to the bottom end of the locating pin away from the locating ball. The locking handle is fixed to the end of the locating pin away from the elastic connecting piece and extends vertically. The end of the locating pin corresponding to the locking ball is rotatable, and the locking ball is accommodated in the corresponding locating groove.

[0011] By adopting the above technical solution, the locking ball is fixed to the bottom end of the positioning pin and can be accommodated in the positioning groove. Used in conjunction with the positioning ball, a double locking mechanism is formed. This not only enhances the stability of the entire structure under stress but also effectively prevents accidental loosening, improving safety performance.

[0012] Preferably, the length of the locking handle extension is greater than the width of the fastening groove, and the locking handles are vertically arranged side by side and can be inserted into the connecting hole.

[0013] Preferably, the thickness of the gasket is one-twelfth of the screw pitch.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] 1. By adjusting the auxiliary support of the shims, the fastening groove on the nut body is set to correspond with the connecting hole on the side wall of the screw. This design makes the nut more supportive after installation. The positioning pin is inserted laterally into the connecting hole, and a positioning structure that engages with the fastening groove is set on the positioning pin. This design achieves precise axial positioning of the nut and prevents rotation.

[0016] 2. The matching design of the positioning ball and the positioning groove ensures that the positioning ball can automatically fall into the corresponding positioning groove during the assembly process, achieving fast and accurate centering, which helps to improve assembly efficiency and reduce installation errors. The introduction of the elastic connecting piece adds flexibility and facilitates installation.

[0017] 3. The locking ball is fixed to the bottom of the positioning pin and can be accommodated in the positioning groove. Used in conjunction with the positioning ball, it forms a double locking mechanism. This not only enhances the stability of the entire structure under stress but also effectively prevents accidental loosening, thus improving safety performance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the gasket located below the nut body in an embodiment of this application;

[0019] Figure 2 This is a cross-sectional view of an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the structure of the locking handle before it is twisted according to an embodiment of this application.

[0021] Explanation of reference numerals in the attached drawings: 1. Nut body; 2. Screw; 3. Communicating hole; 4. Fastening groove; 5. Washer; 6. Locating pin; 7. Locating structure; 71. Locating groove; 72. Locating ball; 73. Elastic connecting piece; 8. Locking structure; 81. Locking ball; 82. Locking handle. Detailed Implementation

[0022] The present application will be further described in detail below with reference to the accompanying drawings.

[0023] This application discloses a grooved nut for a flange face, referring to... Figure 1 , 2 The nut body 1 includes a screw rod 2 screwed into the nut body 1. The screw rod 2 has a connecting hole 3 on its side wall. The nut body 1 has a fastening groove 4 along its side wall from top to bottom. The connecting hole 3 is located on the center surface of both ends of the nut body 1. The fastening groove 4 is set at the position of the connecting hole 3, so that the distance from the connecting hole 3 to both ends of the nut body 1 is the same.

[0024] Reference Figure 1 , 2 The bottom of the nut body 1 has an opening on one side and a washer 5 is fitted onto the screw 2. The opening direction of the washer 5 corresponds to the direction of the connecting hole 3, and the thickness of the washer 5 corresponds to the pitch of the screw 2. The thickness of the washer 5 is preferably one-twelfth of the pitch of the screw 2, so that the hexagonal nut body 1 is offset by 30°. When the nut body 1 is tightened, the connecting hole 3 cannot be aligned with the position of the fastening groove 4. It is rotated to the position of the connecting hole 3 corresponding to the fastening groove 4.

[0025] Reference Figure 1 , 2The washer 5 has a locating pin 6 at the end away from the opening, which is positioned opposite to and transversely passes through the connecting hole 3. Since the locating pin 6 is positioned corresponding to the connecting hole 3, and the connecting hole 3 is positioned corresponding to the center surfaces of both ends of the nut body 1, when the washer 5 is not in use, it can be flipped and abutted against the upper end of the nut body 1, thus not affecting the use of the nut. At the same time, the locating pin 6 can also fix the nut body 1 and the washer 5.

[0026] Reference Figure 1 , 2 The positioning pin 6 is engaged with the fastening groove 4 by the positioning structure 7. The positioning structure 7 includes a positioning groove 71, a positioning ball 72, and an elastic connecting piece 73. The positioning groove 71 is respectively opened on the side wall of the fastening groove 4, and the height of the positioning groove 71 corresponds to the center surface of both ends of the nut body 1. One end of the elastic connecting piece 73 is fixed to the end of the washer 5 away from the opening and extends upward, and the other end is fixed to the positioning pin 6, so that the components outside the nut body 1 are connected as a whole, avoiding the problem of too many parts. The positioning ball 72 is respectively fixed to the opposite ends of the positioning pin 6, and the positioning ball 72 is housed in the corresponding positioning groove 71. The two positioning pins 6 are interference fit, and the positioning pin 6 is inserted into the corresponding positioning groove 71 by the misalignment of the elastic connecting piece 73. The installation process is simple and the positioning is stable after connection.

[0027] Reference Figure 1 , 3 The locating pin 6 is positioned at one end relative to the elastic connecting piece 73 and is located on the locking structure 8. The locking structure 8 includes a locking ball 81 and a locking handle 82. The locking ball 81 is fixed to the bottom end of the locating pin 6 away from the locating ball 72. The locking handle 82 is fixed to the end of the locating pin 6 away from the elastic connecting piece 73 and extends vertically. The combined length of the extension of the locking handle 82 is greater than the width of the fastening groove 4. The locking handle 82 is vertically arranged side by side and can be inserted into the connecting hole 3, so that the locking handle 82 can easily pass through the connecting hole 3. At the same time, the end of the locating pin 6 corresponding to the locking ball 81 can be twisted. The locking ball 81 is accommodated in the corresponding locating groove 71. After twisting, the locking handle 82 is arranged horizontally. The locking handle 82 can be easily twisted manually and can also abut against the side wall of the nut to position the locating pin 6.

[0028] The working process of this application is as follows: Rotate the nut body 1 to the screw 2. When the nut body 1 is tightened, the connecting hole 3 is aligned with the fastening groove 4. Insert the positioning pin 6 into the connecting hole 3. Invert the washer 5 and position it on the upper side of the nut body 1. Engage the positioning balls 72 on the positioning pin 6 into the positioning grooves 71 respectively. Twist the locking handle 82 to engage the locking balls 81 into the corresponding positioning grooves 71. The locking handle 82 abuts against the side wall of the nut body 1 to complete the installation.

[0029] When the nut body 1 is tightened, the connecting hole 3 cannot be aligned with the fastening groove 4. The nut body 1 is loosened and the washer 5 is inserted into one side of the lower end of the nut body 1. Then the nut is tightened so that the fastening groove 4 of the deflected nut is aligned with the connecting hole 3. The positioning pin 6 is inserted into the connecting hole 3, the positioning ball 72 corresponds to the positioning groove 71, the locking ball 81 corresponds to the positioning groove 71 on the opposite side, and the locking handle 82 abuts against the side wall of the nut body 1, thereby completing the adaptive installation.

[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A grooved nut for a flange face, comprising a nut body (1), wherein a screw (2) is disposed and screwed into the nut body (1), and a connecting hole (3) is provided on the side wall of the screw (2), characterized in that: The nut body (1) has a fastening groove (4) along the side wall from top to bottom. The connecting hole (3) is located on the center surface of both ends of the nut body (1). The fastening groove (4) is set in the position corresponding to the connecting hole (3). The bottom end of the nut body (1) has a washer (5) with an opening on one side and fitted onto the screw (2). The opening direction of the washer (5) is set in the direction corresponding to the direction of the connecting hole (3). The thickness of the washer (5) is set in the pitch of the screw (2). The end of the washer (5) away from the opening direction has a positioning pin (6) that is set opposite to it and passes through the connecting hole (3) laterally. The positioning pin (6) has a positioning structure (7) that is engaged in the fastening groove (4).

2. A slotted nut for a flange face according to claim 1, characterized in that: The positioning structure (7) includes a positioning groove (71), a positioning ball (72), and an elastic connecting piece (73). The positioning groove (71) is respectively opened on the side wall of the fastening groove (4), and the height of the positioning groove (71) corresponds to the center surface of both ends of the nut body (1). One end of the elastic connecting piece (73) is fixed to the end of the washer (5) away from the opening and extends upward, and the other end is fixed to the positioning pin (6). The positioning ball (72) is respectively fixed to the opposite ends of the positioning pin (6), and the positioning ball (72) is accommodated in the corresponding positioning groove (71). The positioning pins (6) on both sides are interference fit.

3. A slotted nut for a flange face according to claim 2, characterized in that: The positioning pin (6) is located at one end relative to the elastic connecting piece (73) in the locking structure (8). The locking structure (8) includes a locking ball (81) and a locking handle (82). The locking ball (81) is fixed to the bottom end of the positioning pin (6) away from the positioning ball (72). The locking handle (82) is fixed to the end of the positioning pin (6) away from the elastic connecting piece (73) and extends vertically. The end of the positioning pin (6) corresponding to the locking ball (81) is rotatable, and the locking ball (81) is accommodated in the corresponding positioning groove (71).

4. A slotted nut for a flange face according to claim 3, characterized in that: The length of the locking handle (82) is greater than the width of the fastening groove (4), and the locking handle (82) is vertically arranged side by side and can be inserted into the connecting hole (3).

5. A slotted nut for a flange face according to claim 1, characterized in that: The thickness of the gasket (5) is one-twelfth of the pitch of the screw (2).

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