CN217950972U - Connecting shaft with anti-loosening function and hydraulic tool tong head - Google Patents
Connecting shaft with anti-loosening function and hydraulic tool tong head Download PDFInfo
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- CN217950972U CN217950972U CN202222198644.9U CN202222198644U CN217950972U CN 217950972 U CN217950972 U CN 217950972U CN 202222198644 U CN202222198644 U CN 202222198644U CN 217950972 U CN217950972 U CN 217950972U
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- connecting shaft
- blade
- mounting cavity
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Abstract
The utility model relates to a hydraulic tool accessory technical field refers in particular to a connecting axle and hydraulic tool's binding clip with locking function, include: the shaft body is provided with a first threaded part on the outer wall of the front end, the front end surface is sunken towards the rear end to form a mounting cavity, and the mounting cavity penetrates through the side wall of the first threaded part; the locking assembly is arranged in the mounting cavity, and at least one second threaded part is formed on the side wall of the locking assembly; the nut is provided with a first threaded hole; when the nut is screwed on the first threaded part, the locking assembly is moved, so that the second threaded part locks the threads of the first threaded hole; the locking assembly at least comprises a locking stop block, a locking pin and a locking pin, wherein the middle part of the locking stop block is provided with a second threaded hole, and the outer side wall of the locking stop block is formed with a second threaded part; and the fastening screw is connected in the second threaded hole, and the end part of the fastening screw is movably abutted against the bottom of the mounting cavity. The utility model has the advantages of simple structure, convenient installation and debugging, etc.
Description
Technical Field
The utility model relates to a hydraulic tool accessory technical field refers in particular to a connecting axle and hydraulic tool's binding clip with locking function.
Background
The blades in the existing hydraulic shearing electric tong heads are generally connected and mounted by connecting shafts, for example, a bolt described in chinese patent 2018102629444 adopts a double nut design to solve the problem of looseness, but the double nut scheme is very easy to cause over-tight connection when in actual use, so that the problem of influence on rotation of the blades is caused, and meanwhile, when the tightness between the blades needs to be adjusted, the blades cannot be conveniently, quickly and accurately adjusted and fixed.
Disclosure of Invention
The utility model aims at providing a connecting axle and hydraulic tool's binding clip with locking function, through at axis body end-to-end installation locking Assembly, utilize holding screw to make the locking dog take place to remove to screw thread on the lock nut solves the problem that two nuts brought among the prior art.
The purpose of the utility model is realized like this:
a connecting shaft with a looseness-preventing function comprises:
the shaft body is provided with a first threaded part on the outer wall of the front end, the front end surface is sunken towards the rear end to form a mounting cavity, and the mounting cavity penetrates through the side wall of the first threaded part;
the locking assembly is arranged in the mounting cavity, and at least one second threaded part is formed on the side wall of the locking assembly;
the nut is provided with a first threaded hole;
after the nut is screwed on the first threaded part, the locking assembly is moved, so that the second threaded part locks the threads of the first threaded hole;
wherein the locking assembly comprises at least:
the middle part of the locking stop block is provided with a second threaded hole, and the outer side wall of the locking stop block is formed with a second threaded part;
and the fastening screw is connected in the second threaded hole, and the end part of the fastening screw is movably abutted against the bottom of the mounting cavity.
Preferably, the locking stopper includes:
the middle part of the positioning part is provided with a second threaded hole;
and the locking part is arranged on the side wall of the positioning part and extends outwards, and the second threaded part is formed on the outer side wall of the locking part.
Preferably, the positioning part is formed with at least two locking parts, and the locking parts are symmetrically arranged.
Preferably, the middle part shaping of installation cavity has the positioning groove who holds location portion.
Preferably, a positioning groove is formed at the bottom of the mounting cavity, and the end of the positioning part is movably inserted into the positioning groove.
A bit for a hydraulic tool, comprising:
a caliper body in which a piston is arranged;
the connecting shaft with the anti-loosening function is arranged at the front end of the clamp body;
the first blade and the second blade are rotatably arranged on the connecting shaft;
and the connecting plate mechanism is used for connecting the end part hinged piston and the blade.
Preferably, the link mechanism includes:
the first connecting plate assembly is hinged with the rear end of the first blade;
and the connecting plate component II is connected with the rear end of the blade II.
Preferably, the first tie plate assembly comprises: a connecting plate I and a connecting plate II;
the first connecting plate and the second connecting plate are respectively positioned at two ends of the first blade and are connected through a pin shaft.
Compared with the prior art, the utility model has the advantages that:
the utility model relates to a replace the scheme of two nuts among the prior art with the cooperation of holding screw and locking dog, when needing to adjust, only need rotate holding screw, make the locking dog not hard up, can rotate the nut, when needing to tighten, make the interior screw thread of locking dog lock nut can, it is simple and convenient to use, can not drive the nut rotation in tight timing, can not take place to influence blade pivoted problem, sets up simultaneously at the tip, easy to assemble and regulation.
Drawings
Fig. 1 is a schematic view of the structure of the binding clip of the present invention.
Fig. 2 is an exploded view of the connecting shaft of the present invention.
Fig. 3 is a schematic view of the structure of the connecting shaft of the present invention.
Fig. 4 is a schematic view of the cross-sectional structure of the connecting shaft of the present invention.
Fig. 5 is a schematic diagram of the related structure of the shaft body and the nut of the present invention.
Reference numerals are as follows: 1. a shaft body; 2. a first threaded part; 3. a mounting cavity; 4. a locking assembly; 5. a second threaded part; 6. a nut; 7. a first threaded hole; 8. locking the stop block; 9. a second threaded hole; 10. a set screw; 11. a positioning part; 12. a locking portion; 13. a positioning groove; 14. positioning a groove; 15. a conical surface; 16. a guide surface; 17. a clamp body; 18. a piston; 19. a first blade; 20. a second blade; 21. a connecting plate mechanism; 22. a first connecting plate component; 23. a second connecting plate component; 24. connecting a first plate; 25. and connecting the second plate.
Detailed Description
The following describes the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1, a jaw of a hydraulic tool includes: the clamp comprises a clamp body 17, a connecting shaft, a first blade 19, a second blade 20 and a connecting plate mechanism 21;
a piston 18 is installed in the pliers body 17 and used for being connected with a hydraulic mechanism, the first blade 19 and the second blade 20 are installed at the front end of the pliers body 17 through a connecting shaft, the connecting plate mechanism 21 is connected with the piston 18, the first blade 19 and the second blade 20, and the first blade 19 and the second blade 20 are driven to do shearing action around the connecting shaft by the movement of the piston 18.
The connecting shaft has a function of preventing looseness, and the function is as follows:
as shown in fig. 2 to 5, the connecting shaft with the anti-loose function includes:
the shaft body 1 is provided with a first threaded part 2 formed on the outer wall of the front end, the front end surface is recessed towards the rear end to form a mounting cavity 3, the mounting cavity 3 penetrates through the side wall of the first threaded part 2, and the integrity of a thread line is damaged at the penetrating part;
the nut 6 is provided with a first threaded hole 7;
a locking assembly 4, comprising:
the locking stop block 8 is arranged in the mounting cavity 3, the middle part of the locking stop block 8 is provided with a second threaded hole 9, the outer side wall of the locking stop block 8 is formed with at least one second threaded part 5, the pitch of the second threaded part 5 is the same as that of the first threaded part 2, and the second threaded part 5 supplements the missing part of the first threaded part 2;
and the set screw 10 is connected in the second threaded hole 9, and the end part of the set screw movably abuts against the bottom of the mounting cavity 3.
After the nut 6 is screwed on the first threaded part 2 and the second threaded part 5, the locking assembly 4 is moved, so that the second threaded part 5 locks the threads of the first threaded hole 7;
the locking mode is to rotate the holding screw 10, makes the holding screw 10 push against the inner wall of installation cavity 3 to make locking dog 8 take place to remove, and then make screw portion two 5 support the screw thread in screw hole one 7, thereby realize locking, avoid becoming flexible.
The utility model relates to a replace two nuts 6's among the prior art scheme with holding screw 10 and locking dog 8's cooperation, when needing to adjust, only need to rotate holding screw 10, make locking dog 8 not hard up, can rotate nut 6, when needing to tighten, make locking dog 8 locking nut in the screw thread can, use simple and convenient, can not drive nut 6 and rotate when tight, can not take place to influence blade pivoted problem, set up simultaneously at the tip, easy to assemble and regulation.
Further, the locking stopper 8 includes:
the middle part of the positioning part 11 is provided with the second threaded hole 9;
and the locking parts 12 are arranged on the side wall of the positioning part 11 and extend outwards, the second threaded part 5 is formed on the outer side wall of the locking part 12, two locking parts 12 are symmetrically arranged on the positioning part 11 in the embodiment, and if three locking parts are arranged, the locking parts are uniformly arranged on the outer wall of the positioning part 11 in the circumferential direction.
The arrangement of the positioning parts 11 can ensure the uniformity of the locking of the nut 6, ensure the uniformity of the stress of the threads and reduce the deformation of the threads.
Simultaneously the middle part shaping of installation cavity 3 has the positioning groove 13 that holds location portion 11, and positioning groove 13's shape and the appearance looks adaptation of location portion 11 guarantee that installation back locking dog 8 can not rock in installation cavity 3.
A positioning groove 14 is formed at the bottom of the mounting cavity 3, and the end of the positioning part 11 is movably inserted into the positioning groove 14.
As shown in fig. 4 and 5, the bottom of the positioning slot 14 is provided with a tapered surface 15;
the end of the set screw 10 is provided with a guide surface 16, the guide surface 16 is movably abutted with the tapered surface 15, and the positioning part 11 is positioned in the center of the mounting cavity 3.
Design like this can make when locking, a plurality of locking portions 12 all are equal contact with the screw thread, avoid appearing the uneven condition of atress, guarantee life.
The link mechanism 21 described above includes: a link plate assembly one 22 hinged to the rear end of the blade one 19;
and a second connecting plate assembly 23 connected with the rear end of the second blade 20.
The first connecting plate assembly 22 and the second connecting plate assembly 23 are identical in structure and are unfolded through the first connecting plate assembly 22, the first connecting plate assembly 22 comprises a first connecting plate 24 and a second connecting plate 25, and the first connecting plate 24 and the second connecting plate 25 are located at two ends of the first blade 19 respectively and are connected through pin shafts. The first connecting plate component 22 and the second connecting plate component 23 are alternately connected to the piston 18.
The design can ensure that the blade is stressed more uniformly and rotates more stably, and the shearing effect is ensured.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A connecting shaft with a locking function is characterized by comprising:
the shaft body (1) is provided with a first threaded part (2) on the outer wall of the front end, the front end surface is sunken towards the rear end to form a mounting cavity (3), and the mounting cavity (3) penetrates through the side wall of the first threaded part (2);
the locking assembly (4) is installed in the installation cavity (3), and at least one second threaded part (5) is formed on the side wall of the locking assembly;
the nut (6) is provided with a first threaded hole (7);
after the nut (6) is screwed on the first threaded part (2) and the second threaded part (5), the locking assembly (4) is moved, so that the second threaded part (5) locks the threads of the first threaded hole (7);
wherein the locking assembly (4) comprises at least:
a second threaded hole (9) is formed in the middle of the locking stop block (8), and a second threaded part (5) is formed on the outer side wall of the locking stop block (8);
and the set screw (10) is connected in the second threaded hole (9), and the end part of the set screw movably abuts against the bottom of the mounting cavity (3).
2. The connecting shaft with the anti-loosening function according to claim 1, wherein:
the locking dog (8) comprises:
the middle of the positioning part (11) is provided with a second threaded hole (9);
and the locking part (12) is arranged on the side wall of the positioning part (11) and extends outwards, and the second threaded part (5) is molded on the outer side wall of the locking part (12).
3. The connecting shaft with the anti-loosening function according to claim 2, wherein:
the positioning part (11) is formed with at least two locking parts (12), and the locking parts (12) are symmetrically arranged.
4. A connecting shaft with anti-loosening function according to claim 1 or 2, wherein:
the middle part shaping of installation cavity (3) has positioning groove (13) that hold location portion (11).
5. The connecting shaft with the anti-loosening function according to claim 1, wherein:
and a positioning groove (14) is formed at the bottom of the mounting cavity (3), and the end part of the positioning part (11) is movably inserted into the positioning groove (14).
6. The connecting shaft with the anti-loosening function according to claim 5, wherein:
a conical surface (15) is arranged at the bottom of the positioning groove (14);
the end part of the set screw (10) is provided with a guide surface (16), the guide surface (16) is movably abutted with the conical surface (15) and used for positioning the positioning part (11) in the center of the mounting cavity (3).
7. A bit for a hydraulic tool, comprising:
a caliper body (17) in which a piston (18) is provided;
a connecting shaft with anti-loosening function as defined in any one of claims 1 to 6, which is installed at the front end of the caliper body (17);
the first blade (19) and the second blade (20) are rotatably arranged on the connecting shaft;
a link mechanism (21) for connecting the end hinged piston (18) and the blade.
8. The bit for a hydraulic tool of claim 7, wherein:
the link plate mechanism (21) includes:
a link plate assembly one (22) which hinges the rear end of the blade one (19);
and the connecting plate assembly II (23) is connected with the rear end of the blade II (20).
9. The hydraulic tool bit of claim 8, wherein:
the first tie plate assembly (22) comprises: a first connecting plate (24) and a second connecting plate (25);
the connecting plate I (24) and the connecting plate II (25) are respectively positioned at two ends of the blade I (19) and are connected through a pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222198644.9U CN217950972U (en) | 2022-08-20 | 2022-08-20 | Connecting shaft with anti-loosening function and hydraulic tool tong head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222198644.9U CN217950972U (en) | 2022-08-20 | 2022-08-20 | Connecting shaft with anti-loosening function and hydraulic tool tong head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217950972U true CN217950972U (en) | 2022-12-02 |
Family
ID=84231195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222198644.9U Active CN217950972U (en) | 2022-08-20 | 2022-08-20 | Connecting shaft with anti-loosening function and hydraulic tool tong head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217950972U (en) |
-
2022
- 2022-08-20 CN CN202222198644.9U patent/CN217950972U/en active Active
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