CN212272770U - Clamping groove pressure locking nut - Google Patents
Clamping groove pressure locking nut Download PDFInfo
- Publication number
- CN212272770U CN212272770U CN202020275570.2U CN202020275570U CN212272770U CN 212272770 U CN212272770 U CN 212272770U CN 202020275570 U CN202020275570 U CN 202020275570U CN 212272770 U CN212272770 U CN 212272770U
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Abstract
The utility model discloses a draw-in groove pressure lock nut, including first nut and second nut, first nut includes interconnect's first head and first pole portion, form first step between the outer wall of first head and first pole portion, it is equipped with first screw to pass first head and first pole portion, first screw includes first hole and second hole, the second nut includes interconnect's second head and second pole portion, form the third step between the outer wall of second head and second pole portion, it is equipped with the second screw to pass second head and second pole portion, the aperture of second screw equals and communicates each other with the aperture in first hole, second pole portion inserts in the second hole, be equipped with on the outer wall of second pole portion and link up the screw thread with the second, be equipped with a plurality of length direction along its axial direction's breach in the second pole portion. Compared with the prior art, the utility model discloses make the nut firmly squeeze tightly on the screw rod, be difficult to take place not hard up, effectively promote the fastening locking effect of nut.
Description
Technical Field
The utility model relates to a lock nut, in particular to draw-in groove pressure lock nut.
Background
The fastener is a kind of mechanical parts which are used for fastening and connecting and have wide application, and it is characterized by that its variety and specification are various, and its performance and application are different, and its standardization, serialization and universalization degree are also extremely high, so that it also can use the fastener of existent national standard as standard fastener or simply called standard component.
The nut is a nut, and is screwed together with a bolt or a screw rod to play a fastening role, and an element which is necessary for all production and manufacturing machines is divided into carbon steel, stainless steel, non-ferrous metal (such as copper) and other types according to different materials. Under the condition of existing double-nut connection, the double-nut connection structure is easy to loosen, the axial force is attenuated, and no radial locking force exists.
In view of the above, the inventors of the present application have conducted extensive studies to obtain a chuck groove pressure lock nut.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a draw-in groove pressure lock nut, it can realize good locking effect.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a clamping groove pressure locking nut comprises a first nut and a second nut, the first nut comprises a first head part and a first rod part which are connected with each other, a first step is formed between the outer wall of the first head part and the outer wall of the first rod part, a first screw hole is formed by penetrating the first head part and the first rod part and comprises a first hole and a second hole, the aperture of the first hole is smaller than that of the second hole, a second step is formed between the first hole and the second hole, the first hole is closer to the first head part than the second hole, the second nut comprises a second head part and a second rod part which are connected with each other, a third step is formed between the outer wall of the second head part and the outer wall of the second rod part, a second screw hole is formed by penetrating the second head part and the second rod part, the aperture of the second screw hole is equal to that of the aperture of the first hole and is communicated with each other, the second rod part is inserted into the second hole, the end part of the second rod part abuts against the second step, threads matched with the second hole are arranged on the outer wall of the second rod part, and a plurality of gaps in the length direction along the axial direction of the second rod part are arranged on the second rod part.
In a further improvement, the spring washer is penetrated by the second rod part and is positioned between the end part of the first rod part and the third step.
In a further improvement, the number of the notches is set to be 3.
In a further improvement, an included angle of 1-5 degrees is formed between the outer wall surface of the second rod part and a vertical plane.
The improved structure of the positioning device comprises a positioning piece, wherein the positioning piece comprises an elastic piece and a positioning column, a positioning hole is formed in the third step, a positioning through hole corresponding to the positioning hole is formed in the elastic gasket, a positioning groove is formed in the end face of the first rod part, the positioning groove is formed in the end face surface of the first rod part and penetrates into the inner portion of the first rod part gradually, the elastic piece is arranged at the bottom of the positioning hole, the lower end of the positioning column is inserted into the positioning hole and abuts against the elastic piece, and the upper end of the positioning column penetrates through the positioning through hole and then is inserted into the positioning groove.
In a further improvement, the elastic member is provided as a spring.
In a further improvement, the number of the positioning holes is set to be a plurality, and the positioning through holes, the positioning grooves and the positioning pieces are matched with the positioning holes in a one-to-one correspondence manner.
Compared with the prior art, the utility model provides a clamping groove pressure locking nut, which is provided with a first nut and a second nut, when fastening, the first nut and the second nut provide axial tightening force mutually, so that the nuts can be firmly tightened on a screw rod and are difficult to loosen; simultaneously, be equipped with a plurality of breachs in its second pole portion, the setting up of breach makes second pole portion form a plurality of sheet structures, and under the effect of hugging closely of first pole portion, screw rod can firmly be hugged closely in second pole portion to further promote the fastening locking effect of nut.
Drawings
Fig. 1 is a schematic structural view of the present invention, which relates to a snap groove pressure lock nut.
Fig. 2 is a schematic view of a longitudinal section structure of a groove pressure lock nut of the present invention.
Fig. 3 is an exploded view of the first view angle of the snap groove pressure lock nut of the present invention.
Fig. 4 is an exploded view of a second view angle of the snap groove pressure lock nut of the present invention.
Fig. 5 is an enlarged schematic view of a portion a of fig. 4.
In the drawings
A first head-11; a first step-111; a first shaft portion-12; a positioning groove-121; a first aperture-13; a second well-14; a second step-15; a second head-21; a third step-211; positioning hole-212; a second shaft portion-22; notch-221; a second screw hole-23; an elastic gasket-4; positioning through holes-41; an elastic member-5; a positioning column-6.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
As shown in fig. 1 to 5, a snap groove pressure locking nut includes a first nut and a second nut, the first nut includes a first head 11 and a first rod 12 connected to each other, a first step 111 is formed between the outer walls of the first head 11 and the first rod 12, a first screw hole is formed through the first head 11 and the first rod 12, the first screw hole includes a first hole 13 and a second hole 14, the aperture of the first hole 13 is smaller than that of the second hole 14, a second step 15 is formed between the first hole 13 and the second hole 14, the first hole 13 is closer to the first head 11 than the second hole 14, the second nut includes a second head 21 and a second rod 22 connected to each other, a third step 211 is formed between the outer walls of the second head 21 and the second rod 22, and a second screw hole 23 is formed through the second head 21 and the second rod 22, the aperture of the second screw hole 23 is equal to the aperture of the first hole 13 and is communicated with the first hole, the second rod portion 22 is inserted into the second hole 14, the end portion of the second rod portion abuts against the second step 15, the outer wall of the second rod portion 22 is provided with threads matched with the second hole 14, the second rod portion 22 is provided with a plurality of notches 221 in the length direction along the axial direction of the second rod portion, and in this embodiment, the number of the notches 221 is set to be 3.
Under the arrangement of the structure, when the nut is assembled, the second nut is firstly assembled on the screw rod to enable the screw rod to be matched with the second screw hole 23, then the first nut is assembled to enable the first hole 13 to be matched with the screw rod, the second hole 14 to be matched with the thread arranged on the outer wall of the second rod part 22, and the first nut and the second nut provide axial squeezing force, so that the nut can be firmly squeezed on the screw rod and is difficult to loosen; simultaneously, be equipped with a plurality of breachs 221 on its second pole portion 22, the setting of breach 221 makes second pole portion 22 form a plurality of sheet structures, and under the effect of hugging closely of first pole portion 12, screw rod can firmly be hugged closely to second pole portion 22 to further promote the fastening locking effect of nut.
In order to apply the pre-stress and the clearance compensation, the snap groove pressure lock nut of the present embodiment further includes an elastic pad 4, the elastic pad 4 is penetrated by the second rod portion 22 and located between the end of the first rod portion 12 and the third step 211, and the elastic pad 4 is squeezed between the end of the first rod portion 12 and the third step 211.
In order to facilitate the insertion of the second rod portion 22, an included angle of 1-5 degrees is provided between the outer wall surface of the second rod portion 22 and the vertical plane, and in this embodiment, an included angle α of 3 degrees is provided between the outer wall surface of the second rod portion 22 and the vertical plane.
The clamping groove pressure lock nut of this embodiment still includes the setting element, the setting element includes elastic component 5 and reference column 6, be equipped with locating hole 212 on the third step 211, be equipped with on the resilient pad 4 with locating hole 41 that locating hole 212 position corresponds, be equipped with constant head tank 121 on the terminal surface of first pole portion 12, constant head tank 121 by the terminal surface of first pole portion 12 to the inside of first pole portion 12 is deepened gradually, elastic component 5 locates the bottom of locating hole 212, the lower extreme of reference column 6 inserts support in locating hole 212 in top on the elastic component 5, its upper end passes insert behind locating hole 41 in the constant head tank 121.
Under the above-mentioned structure, during the assembly process, the second nut is assembled first, then the elastic member 5 and the positioning post 6 are placed into the positioning hole 212, then the elastic gasket 4 is placed, and finally the first nut is assembled, during the process that the first nut gradually approaches the second nut, the upper end of the positioning post 6 is inserted into the positioning groove 121, since the positioning groove 121 gradually penetrates from the end surface of the first rod portion 12 to the inside of the first rod portion 12, during the rotation process of the first nut, the upper end of the positioning post 6 gradually exits from the positioning groove 121 and then enters into the next positioning groove 121, and so on, finally the first nut and the elastic gasket 4 are tightly pressed against each other, and the upper end of the positioning post 6 is inserted into one of the positioning grooves 121, at this time, due to the positioning effect of the positioning post 6, the first nut and the second nut cannot rotate oppositely, so that locking is realized, and the locking and fixing effects are effectively improved.
In particular, the elastic member 5 is provided as a spring.
In order to achieve a good positioning effect, the number of the positioning holes 212 is set to be multiple, and the positioning through holes 41, the positioning grooves 121 and the positioning pieces are correspondingly matched with the positioning holes 212 one to one.
The foregoing description of the embodiments is provided to enable one of ordinary skill in the art to make and use the invention and is provided for enabling those of ordinary skill in the art to make and use the invention as provided within the appended claims. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (7)
1. A clamping groove pressure locking nut is characterized by comprising a first nut and a second nut, wherein the first nut comprises a first head part and a first rod part which are connected with each other, a first step is formed between the outer wall of the first head part and the outer wall of the first rod part, a first screw hole is formed by penetrating the first head part and the first rod part and comprises a first hole and a second hole, the aperture of the first hole is smaller than that of the second hole, a second step is formed between the first hole and the second hole, the first hole is closer to the first head part than the second hole, the second nut comprises a second head part and a second rod part which are connected with each other, a third step is formed between the outer wall of the second head part and the outer wall of the second rod part, a second screw hole is formed by penetrating the second head part and the second rod part, the aperture of the second screw hole is equal to that of the first hole and is communicated with each other, the second rod part is inserted into the second hole, the end part of the second rod part abuts against the second step, threads matched with the second hole are arranged on the outer wall of the second rod part, and a plurality of gaps in the length direction along the axial direction of the second rod part are arranged on the second rod part.
2. The grove pressure lock nut of claim 1, further comprising a resilient washer that is passed through by the second stem portion and is located between the end of the first stem portion and the third step.
3. The chuck pressure locking nut of claim 1, wherein the number of the notches is 3.
4. The chuck pressure lock nut of claim 1, wherein an included angle of 1-5 degrees is formed between the outer wall surface of the second rod portion and a vertical plane.
5. The chuck pressure lock nut of claim 2, further comprising a positioning member, wherein the positioning member comprises an elastic member and a positioning post, the third step is provided with a positioning hole, the elastic washer is provided with a positioning through hole corresponding to the positioning hole, the end surface of the first rod portion is provided with a positioning groove, the positioning groove is gradually extended from the surface of the end surface of the first rod portion to the inside of the first rod portion, the elastic member is disposed at the bottom of the positioning hole, the lower end of the positioning post is inserted into the positioning hole and abuts against the elastic member, and the upper end of the positioning post is inserted into the positioning groove after passing through the positioning through hole.
6. The chuck pressure lock nut of claim 5, wherein the resilient member is configured as a spring.
7. The chuck pressure lock nut of claim 5, wherein the number of the positioning holes is set to be plural, and the positioning through holes, the positioning grooves and the positioning pieces are matched with the positioning holes in a one-to-one correspondence manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020275570.2U CN212272770U (en) | 2020-03-09 | 2020-03-09 | Clamping groove pressure locking nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020275570.2U CN212272770U (en) | 2020-03-09 | 2020-03-09 | Clamping groove pressure locking nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212272770U true CN212272770U (en) | 2021-01-01 |
Family
ID=73874452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020275570.2U Active CN212272770U (en) | 2020-03-09 | 2020-03-09 | Clamping groove pressure locking nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212272770U (en) |
-
2020
- 2020-03-09 CN CN202020275570.2U patent/CN212272770U/en active Active
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