T-shaped nut assembly

Abstract

The utility model relates to a T-shaped nut assembly which comprises a first nut and a second nut, the second nut is an outer hexagon nut, the upper end face of the first nut is connected with two limiting plates in a sliding mode, the two limiting plates are symmetrically arranged left and right, an inner hexagon groove is jointly formed between the limiting plates, and the outer contour of the second nut is matched with the section of the inner hexagon groove. The end, used for making contact with the other limiting plate, of each limiting plate is provided with a buckle mechanism, in the structure, after the first nut and the second nut are screwed down, the limiting plates are used for limiting the first nut or the second nut rotating to the threaded rod backwards, and the loosening phenomenon is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to a T-shaped nut assembly. Background Art

[0002] At present, in order to prevent the threaded connection from loosening, a commonly used method is to screw two nuts on a screw rod, and the double nut structure has an anti-loosening effect. However, the disadvantage of this method is that if the nut screwed onto the screw rod loosens first, then the nut tightened first may also loosen. Utility Model Content

[0003] The utility model provides a T-shaped nut assembly, which solves the above problems existing in the use process of the prior art.

[0004] The technical solution of the utility model is implemented as follows: a T-nut assembly, characterized in that: it includes a first nut and a second nut, the second nut is an external hexagonal nut, the upper end surface of the first nut is slidably connected to two limit plates, the limit plates are symmetrically arranged one on the left and the other on the right, an internal hexagonal groove is commonly provided between the limit plates, the outer contour of the second nut is consistent with the cross-section of the internal hexagonal groove, and a snap mechanism is provided on the end of the limit plate that contacts the other limit plate.

[0005] The utility model is further configured as follows: the buckle mechanism includes a left buckle block and a right buckle block, the left buckle block and the right buckle block are arranged one left and one right with central symmetry, the left end of the left buckle block and the right end of the right buckle block are both provided with connecting plates, the connecting plates are used to connect with the limiting plate on the same side thereof, a first inclined surface is formed between the right end face and the lower end face of the left buckle block, a second inclined surface is formed between the left end face and the upper end face of the right buckle block, the left end face of the left buckle block and the right end face of the right buckle block are vertical surfaces, the left buckle block and the right buckle block are both protruding from the limiting plate, and the left end face of the left buckle block is used to abut against the right end face of the right buckle block.

[0006] The utility model is further configured as follows: a slide groove is provided in the limit plate, the connecting plate is slidably arranged in the slide groove up and down, and a first elastic pushing member for pushing the connecting plate along the up and down directions is provided in the slide groove, and the first elastic pushing members on the two limit plates are respectively located above the left buckle block and below the right buckle block.

[0007] The utility model is further configured as follows: the limiting plate where the left buckle block is located is provided with a first accommodating groove below the slide groove, and the limiting plate where the right buckle block is located is provided with a second accommodating groove above the slide groove, and the first accommodating groove and the second accommodating groove are respectively used for inserting the right buckle block and the left buckle block.

[0008] The utility model is further configured as follows: a fixing plate is slidably arranged in the first accommodating groove and the second accommodating groove, a second elastic pushing member is arranged on a side of the fixing plate away from the sliding groove, and a chamfer is arranged on the outer end of the fixing plate.

[0009] The utility model is further configured as follows: the first elastic pushing member and the second elastic pushing member are both springs, and the springs are fixedly connected to the limiting plate.

[0010] The utility model is further configured as follows: the thread directions of the first nut and the second nut are opposite.

[0011] In summary, the beneficial effects of the present invention are:

[0012] 1. When the first nut and the second nut are tightened, the limit plate is used to limit the first nut or the second nut that is rotated onto the screw rod to prevent loosening.

[0013] 2. The left buckle block and the right buckle block can be buckled with each other to keep the two limit plates in a closed state.

[0014] 3. The sliding setting of the connecting plate can make the process of locking the left buckle block and the right buckle block together more labor-saving.

[0015] 4. The first accommodating groove and the second accommodating groove can be used to cover the buckling part of the left buckle block and the right buckle block to make the connection between the two limiting plates more stable.

[0016] 5. The fixing plate and the second elastic pusher can further fix the positions of the left buckle block and the right buckle block that are buckled together.

[0017] 6. The first nut and the second nut have opposite thread directions, which can further enhance the anti-loosening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 3 for Figure 1 A local enlarged schematic diagram of the middle A;

[0022] Figure 4 It is a schematic diagram of the explosion of the structure of the utility model;

[0023] Figure 5 for Figure 4 A local enlarged schematic diagram of point B in the middle.

[0024] Numbers in the figure: 1 first nut, 2 second nut, 3 limiting plate, 31 hexagonal groove, 41 left buckle block, 42 ​​first inclined surface, 43 first accommodating groove, 51 right buckle block, 52 second inclined surface, 53 second accommodating groove, 61 connecting plate, 62 sliding groove, 63 first elastic pushing member, 64 fixing plate, 641 chamfer, 65 second elastic pushing member. DETAILED DESCRIPTION

[0025] The following will be combined with the attached embodiment of the present utility model Figure 1-5 , 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 them. Based on the embodiments of 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.

[0026] Example:

[0027] like Figures 1 to 5 As shown, the utility model discloses a T-nut assembly, including a first nut 1 and a second nut 2, wherein the upper end surface of the first nut 1 is slidably connected to two limit plates 3, the two limit plates 3 are symmetrically arranged one on the left and the other on the right, a hexagonal groove 31 is commonly provided between the limit plates 3, a snap mechanism is provided on the end of the limit plate 3 that contacts the other limit plate 3, the second nut 2 is an external hexagonal nut, the outer contour of the second nut 2 is consistent with the cross-section of the internal hexagonal groove 31, and the thread directions of the first nut 1 and the second nut 2 are opposite.

[0028] The working principle of this structure is as follows: the snap-fit ​​mechanism is used to keep the two limit plates 3 in a retracted state. After the first nut 1 and the second nut 2 are both tightened on the threaded rod, according to the double-nut anti-loosening principle, the nut that is tightened first needs the nut that is tightened later to be loosened before it can be rotated and loosened. In this structure, as long as the limit plate 3 restricts the rotation of the second nut 2, since the first nut 1 and the second nut 2 are locked by the limit plate 3, no matter whether the first nut 1 or the second nut 2 is tightened first, the nut that is tightened later cannot be loosened, so the double-nut anti-loosening state can be maintained.

[0029] The specific setting scheme of the snap mechanism is: the snap mechanism includes a left snap block 41 and a right snap block 51, wherein the left snap block 41 and the right snap block 51 are arranged one left and one right with center symmetry, and the left end of the left snap block 41 and the right end of the right snap block 51 are both provided with a connecting plate 61. In this structure, the connecting plate 61 is used to connect with the limiting plate 3 on the same side thereof, a first inclined surface 42 is formed between the right end face and the lower end face of the left snap block 41, a second inclined surface 52 is formed between the left end face and the upper end face of the right snap block 51, the left end face of the left snap block 41 and the right end face of the right snap block 51 are vertical surfaces, the left snap block 41 and the right snap block 51 are both protruding from the limiting plate 3, and the left end face of the left snap block 41 is used to abut against the right end face of the right snap block 51.

[0030] Furthermore, a slide groove 62 is opened in the limit plate 3, and the connecting plate 61 is slidably arranged in the slide groove 62, and a first elastic pushing member 63 for pushing the connecting plate 61 along the up and down directions is provided in the slide groove 62. The first elastic pushing members 63 on the two limit plates 3 are respectively located above the left buckle block 41 and below the right buckle block 51.

[0031] Furthermore, the limiting plate 3 where the left buckle block 41 is located is provided with a first accommodating groove 43 below the slide groove 62, and the limiting plate 3 where the right buckle block 51 is located is provided with a second accommodating groove 53 above the slide groove 62. The first accommodating groove 43 and the second accommodating groove 53 are respectively used for inserting the right buckle block 51 and the left buckle block 41.

[0032] The working principle of this structure is as follows: in the process of the limit plates 3 approaching each other, when the left buckle block 41 and the right buckle block 51 first abut against each other, the first inclined surface 42 and the second inclined surface 52 can be used to push the right buckle block 51 and the left buckle block 41 to slide respectively, so that they move away from each other. When the right end face of the left buckle block 41 moves to the left side of the left end face of the right buckle block 51, the first elastic pushing member 63 makes the left buckle block 41 and the right buckle block 51 approach each other. At this time, the left end face of the left buckle block 41 will abut against the right end face of the right buckle block 51, so that the two limit plates 3 remain in a retracted state.

[0033] A fixing plate 64 is provided in the first accommodating groove 43 and the second accommodating groove 53 so as to slide up and down. A second elastic pushing member 65 is provided on the side of the fixing plate 64 away from the sliding groove 62. A chamfer 641 is provided on the end of the fixing plate 64 in the first accommodating groove 43 that faces the opening of the first accommodating groove 43. A chamfer 641 is also provided on the end of the fixing plate 64 in the second accommodating groove 53 that faces the opening of the second accommodating groove 53.

[0034] When the left buckle block 41 is about to enter the second accommodating groove 53, the chamfer 641 of the fixed plate 64 in the second accommodating groove 53 first abuts against the left buckle block 41. At this time, the left buckle block 41 can push the fixed plate 64 to slide upward and thereby enter the second accommodating groove 53. After the left buckle block 41 completely enters the second accommodating groove 53, the fixed plate 64 is pressed on the left buckle block 41 under the action of the second elastic pushing member 65, thereby further preventing the left buckle block 41 from leaving the second accommodating groove 53. The principle of the right buckle block 51 is similar to that of the left buckle block 41, so it is not repeated.

[0035] The first elastic pushing member 63 and the second elastic pushing member 65 are both springs, and the springs are fixedly connected to the limiting plate 3 .

[0036] It should also be pointed out that the terms used in the present invention, such as "front", "rear", "vertical", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A T-nut assembly, characterized in that: The invention comprises a first nut (1) and a second nut (2), wherein the second nut (2) is an external hexagonal nut, and the upper end surface of the first nut (1) is slidably connected to two limit plates (3), wherein the limit plates (3) are symmetrically arranged one on the left and one on the right, and an internal hexagonal groove (31) is provided between the limit plates (3), and the outer contour of the second nut (2) is consistent with the cross section of the internal hexagonal groove (31), and a buckle mechanism is provided on the end of the limit plate (3) that contacts the other limit plate (3).

2. A T-nut assembly according to claim 1, characterized in that: The buckle mechanism comprises a left buckle block (41) and a right buckle block (51), the left buckle block (41) and the right buckle block (51) are arranged symmetrically with respect to the center, the left end of the left buckle block (41) and the right end of the right buckle block (51) are both provided with a connecting plate (61), the connecting plate (61) is used to connect with the limiting plate (3) on the same side thereof, a first inclined surface (42) is formed between the right end surface and the lower end surface of the left buckle block (41), a second inclined surface (52) is formed between the left end surface and the upper end surface of the right buckle block (51), the left end surface of the left buckle block (41) and the right end surface of the right buckle block (51) are vertical surfaces, the left buckle block (41) and the right buckle block (51) are both protruding from the limiting plate (3), and the left end surface of the left buckle block (41) is used to abut against the right end surface of the right buckle block (51).

3. A T-nut assembly according to claim 2, characterized in that: A slide groove (62) is provided in the limit plate (3), and the connecting plate (61) is slidably arranged in the slide groove (62) up and down. A first elastic pushing member (63) for pushing the connecting plate (61) in the up and down direction is provided in each of the slide grooves (62). The first elastic pushing members (63) on the two limit plates (3) are respectively located above the left buckle block (41) and below the right buckle block (51).

4. A T-nut assembly according to claim 3, characterized in that: The limiting plate (3) where the left buckle block (41) is located is provided with a first receiving groove (43) below the slide groove (62), and the limiting plate (3) where the right buckle block (51) is located is provided with a second receiving groove (53) above the slide groove (62), wherein the first receiving groove (43) and the second receiving groove (53) are respectively used for inserting the right buckle block (51) and the left buckle block (41).

5. A T-nut assembly according to claim 4, characterized in that: A fixing plate (64) is slidably disposed in the first accommodating groove (43) and the second accommodating groove (53) up and down, a second elastic pushing member (65) is disposed on a side of the fixing plate (64) away from the slide groove (62), and a chamfer (641) is disposed on the outer end of the fixing plate.

6. A T-nut assembly according to claim 5, characterized in that: The first elastic pushing member (63) and the second elastic pushing member (65) are both springs, and the springs are fixedly connected to the limiting plate (3).

7. A T-nut assembly according to claim 1, characterized in that: The thread directions of the first nut (1) and the second nut (2) are opposite.

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