CN216707380U - Adjustable fastening device for inner angle fastener - Google Patents
Adjustable fastening device for inner angle fastener Download PDFInfo
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- CN216707380U CN216707380U CN202123244057.0U CN202123244057U CN216707380U CN 216707380 U CN216707380 U CN 216707380U CN 202123244057 U CN202123244057 U CN 202123244057U CN 216707380 U CN216707380 U CN 216707380U
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Abstract
The utility model provides an adjustable fastening device for an inner angle fastener, which comprises an adjusting head and a driving piece, wherein the adjusting head is connected with the driving piece; the adjusting head is provided with an adjusting hole which is through along the axial direction, the adjusting hole comprises an inclined part with the caliber gradually reduced from the first end to the second end of the adjusting head, and an internal thread is formed in the inclined part; the adjusting head is formed by arranging a plurality of radial positioning pieces around the horizontal circumference of a shaft, and the outer side of each radial positioning piece is provided with at least one inner angle abutting surface; the diameter of the first end to the second end of the driving piece is gradually reduced to form a conical structure corresponding to the inclined part, an external thread capable of being matched with the internal thread of the inclined part is arranged on the outer side wall of the driving piece, and a driving interface is arranged at the end part of the first end of the driving piece. The utility model can be used for installing fasteners such as inner angle bolts of various types and the like, so that the construction process is easier.
Description
Technical Field
The utility model relates to the technical field of mechanical part installation, in particular to an adjustable fastening device for an inner angle fastener.
Background
The inner angle screw fastener, i.e. a fastening connection object with an inner angle interface, is usually rotated around an axis by applying force to the inner angle interface part in the installation process, and is connected with other objects by utilizing threads of the inner angle interface part, common objects of the type include inner hexagon bolts, inner pentagon bolts, inner quadrangle bolts and the like, and the outer angle fastener opposite to the inner hexagon bolt is rotated by applying force from the peripheral part, such as a common hexagon nut. When the socket head cap is installed, the end part of an inner hexagon wrench with a regular hexagon section is usually inserted into the groove, the end part and the groove form clamping fit, then, force is applied to the inner hexagon wrench, the inner hexagon wrench drives the inner hexagon bolt to rotate around a shaft, and therefore rotary installation is achieved.
In real life, a plurality of different inner corner fasteners are required to be used for different mechanical structures, and the sizes of inner corner interfaces of the different inner corner fasteners are different. Therefore, when the inner corner fasteners are adjusted, a large number of wrenches of different models need to be used, and the process of replacing the wrenches can cause the construction efficiency to be greatly reduced. Patent application No. 201720677347.9's patent document provides a hexagon socket head wrench of removable hexagon socket head wrench head, and hexagon socket head wrench includes that a spanner main part and a plurality of not unidimensional can overlap the spanner head of establishing in the spanner main part, when the hexagon socket head bolt construction to different specifications, only need change the spanner head, and it is lighter in directly changing the spanner relatively, and it is also more convenient to carry. However, the problem that the wrench assembly needs to be frequently replaced still exists in the scheme, and the problem that the construction efficiency is not high still exists.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides an adjustable fastening device for an inner angle fastener, which can realize the adjustment of various inner angle fasteners by only using one wrench, and does not need to replace a wrench assembly in the construction process.
In order to achieve the purpose, the utility model adopts the following technical scheme.
An adjustable fastening device for an interior corner fastener includes an adjustment head and a drive member; the adjusting head is provided with an adjusting hole which is through along the axial direction, the adjusting hole comprises an inclined part with the caliber gradually reduced from the first end to the second end of the adjusting head, and an internal thread is formed in the inclined part; the adjusting head is formed by arranging a plurality of radial positioning pieces around the horizontal circumference of a shaft, and the outer side of each radial positioning piece is provided with at least one inner angle abutting surface; the diameter of the first end to the second end of the driving piece is gradually reduced to form a conical structure corresponding to the inclined part, an external thread capable of being matched with the internal thread of the inclined part is arranged on the outer side wall of the driving piece, and a driving interface is arranged at the end part of the first end of the driving piece.
The utility model realizes the effect of freely adjusting the caliber size of the inner angle joint mainly through the adjusting head which can extend and expand outwards. The adjusting head is composed of a plurality of uniformly distributed radial positioning pieces, specifically, when an inner hexagon bolt needs to be screwed, the adjusting head is of a hexagonal structure and is formed by assembling six uniformly distributed radial positioning pieces, when an inner pentagon bolt needs to be screwed, the adjusting head is of a pentagon structure and is composed of five uniformly distributed radial positioning pieces, and by analogy, the specific surface number of the adjusting head is determined according to specific requirements during production and manufacturing. The plurality of radial positioning pieces are circumferentially arranged around the central axis of the adjusting head in a petal-shaped structure, the outer side surface of each radial positioning piece is provided with at least one inner angle abutting surface which is used for being abutted and matched with one side surface of the inner angle interface of the fastener, for example, an inner hexagon bolt is taken as an example, the inner angle interface of the inner hexagon bolt is provided with six side surfaces, and then the six radial positioning pieces forming the adjusting head are respectively abutted with one side surface, so that a matching structure of the adjusting head and the inner angle interface is formed; or each adjusting head is provided with two inner angle abutting faces, the two inner angle abutting faces form an outer vertex angle, and the radial positioning piece is matched and locked with the inner vertex angle of the inner angle connector through the outer vertex angle. When facing the inner angle interfaces with different calibers, the adjusting head is composed of six independent radial positioning pieces, and the radial positioning pieces can extend and move towards the direction far away from the central axis, so that the size of the outline of the adjusting head is changed, and the adjusting head is finally matched with the inner angle interfaces. Specifically, the extension of radial positioning piece removes and realizes through the rotation of drive head, because the drive head forms spiral cooperation with the regulation head, the drive head can provide a radial outside thrust when rotatory for each radial positioning piece removes the expansion to the outside. The first, upper end of the drive element has a drive connection, via which the drive element can be acted upon.
Furthermore, the fastening device also comprises an adjusting head connecting piece; the adjusting head connecting piece is provided with a plurality of guide parts extending along the radial direction, and the number of the guide parts is consistent with that of the radial positioning pieces; the adjusting hole also comprises a positioning part which is arranged at a position close to the second end of the adjusting head and is communicated with the adjusting hole, the inner side wall of the positioning part is provided with a plurality of guide holes which extend along the radial direction, the plurality of guide holes are horizontally and circumferentially arranged around the central axis of the adjusting head, and each radial positioning part is provided with one guide hole; the guide hole and the guide part can form sliding connection.
Adjust first connecting piece and form the ascending supporting structure of horizontal direction through the guide part that radially stretches out, the support forms a plurality of branches to the outside, each branch all forms to correspond with a guide hole, guide part and guide hole cooperation back, radial setting element can form sliding connection with adjusting first connecting piece, radial setting element can be followed the guide part and moved towards the direction of keeping away from regulation head axis and slide, a plurality of radial setting element correspond and install the back on the guide part of adjusting first connecting piece, can form the regulation head subassembly that uses regulation head connecting piece as central structure.
Furthermore, the fastening device also comprises a driving rod, and the driving rod comprises a driving main rod and two driving push rods which are perpendicular to the driving main rod and are arranged on two sides of the driving main rod; the lower end of the driving main rod forms a connecting part matched with the driving interface.
Furthermore, the driving push rod is movably connected with the driving main rod.
Furthermore, the driving push rod is connected with the driving main rod through a rotating shaft, and the driving push rod can rotate to be attached to the driving main rod in parallel.
Furthermore, the driving interface is an inner hexagonal notch or an outer hexagonal joint.
Further, the driving interface is a notch with internal threads or a joint with external threads, and the connecting part is provided with a thread matching structure opposite to the driving interface.
When the driving piece is applied with force, two means exist, the first means is to directly apply force to the driving piece by using a wrench tool, for example, the driving interface of the driving piece is arranged to be an inner hexagonal notch, at the moment, the driving piece can be screwed by using an inner hexagonal wrench, or the driving interface is arranged to be an outer hexagonal joint, at the moment, the driving piece can be screwed by using a common wrench. Another method is to use a driving rod to screw the driving piece, for example, when the driving interface of the driving piece is an inner hexagonal notch or an outer hexagonal joint, the connecting part of the driving main rod is an outer hexagonal joint or an inner hexagonal notch, the connecting part is opposite to the male and female parts of the driving interface to form a fit, and when the two are connected, the driving push rod is forced to drive the whole device to rotate; or the driving interface is a notch with internal threads or a joint with external threads, the connecting part is provided with a thread matching structure opposite to the driving interface, and the connecting part and the driving interface are fixed through spiral connection at the moment, so that the matching is more stable. It should be noted that, when the thread fit scheme is adopted, the adjusting head and the driving member form a first thread fit structure, the driving member and the driving rod form a second thread fit structure, and the screw directions of the thread fit structures of the adjusting head and the driving rod need to be designed to avoid conflict in the screwing process.
In summary, the following beneficial effects can be achieved by applying the technical scheme of the utility model:
1. the adjusting head formed by combining a plurality of radial positioning pieces is matched with the inner angle interface of the inner angle spiral fastener, and the adjusting head can smoothly adjust the caliber size within an allowable range, so that the adjusting head can be matched with any middle inner angle spiral fastener within the range, the application range is greatly expanded, and the defects of low efficiency, time consumption and labor consumption of tools such as a conventional inner hexagonal wrench and the like in the use process are avoided.
2. The utility model applies radial pressure to the adjusting head through the locking head, so that the inner angle abutting surface of the outer side surface of the radial positioning piece can be tightly abutted with the side wall of the inner angle connector, a stronger locking effect is formed between the adjusting head and the fastening piece, the adjusting head is not easy to fall off from the inner angle connector when the adjusting head is rotated, and the operation is more convenient.
3. The plurality of radial positioning pieces forming the adjusting head are connected through the adjusting head connecting piece, the adjusting head connecting piece can play a role in guiding the movement of the radial positioning pieces, so that the outer contour of the adjusting head extends more uniformly, the adjusting head connecting piece can be used for pre-assembling the radial positioning pieces into the adjusting head before the installation of the fastener, and the adjusting head can be conveniently clamped into an inner angle connector of the fastener.
4. According to the utility model, through the arrangement of the driving rod, the fastener can be installed without using a conventional wrench, and the driving push rod is adopted for screwing operation, so that more labor is saved.
5. The driving push rod arranged on the driving main rod is movably connected with the driving main rod, and the driving push rod can rotate to be close to the driving main rod in parallel, so that the space occupation of the device in a non-use state is reduced, and the device is convenient to store.
Drawings
FIG. 1 is a schematic view showing the overall structure of a fastening device according to embodiment 1;
FIG. 2 is a schematic view of an adjusting head in embodiment 1;
FIG. 3 is a schematic view of another driving member in accordance with embodiment 1;
FIG. 4 is a schematic view of a drive rod structure in embodiment 2;
FIG. 5 is a schematic view showing the overall structure of the fastening device according to embodiment 2;
in the figure, 1-an adjusting head, 2-a driving piece, 3-an adjusting head connecting piece, 4-a driving rod, 11-a radial positioning piece, 111-an inner angle abutting surface, 12-an adjusting hole, 121-an oblique part, 122-a positioning part, 123-a guide hole, 21-a driving interface, 31-a guide part, 41-a driving main rod, 42-a driving push rod and 411-a connecting part.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to examples and the accompanying drawings.
Example 1
As shown in fig. 1 to 4, the adjustable fastening device for the internal-angle helical fastener provided by the present embodiment includes three relatively independent parts: adjusting head 1, driving piece 2 and adjusting head connecting piece 3.
The adjusting head 1 is equally divided into six identical radial positioning pieces 11 along the axial tangent plane, and the radial positioning pieces 11 are arranged around the horizontal circumference of the central axis of the adjusting head. The middle part of the adjusting head forms a through adjusting hole 12, the adjusting hole comprises an inclined part 121 with a hole diameter gradually reduced from the first end to the second end of the adjusting head to form a conical surface structure and a positioning part 122 arranged at a position close to the second end of the adjusting head, and an internal thread structure is arranged on the inner side wall of the inclined part. Each radial setting element 11 outside all has two interior angle butt faces 111, and two interior angle butt faces form an outer apex angle, and this outer apex angle can be embedded into the interior apex angle department of the interior angle interface of fasteners such as hexagon socket head cap screw to form the butt with the interior angle interface, when six radial setting element's outer apex angle respectively with six interior angle interface interior apex angles formation butt, adjust the head can form the connection of certain intensity with the fastener, adjust the head and can not drop easily from the interior angle interface. The positioning portion 122 of each radial positioning element is provided with a guide hole 123 at a corresponding position, and the guide hole extends outwards in the radial direction. The appearance of the adjusting head connecting piece 3 is in a gear shape, six branches, namely guide parts 31, are formed outwards along the radial direction, each guide part 31 corresponds to one guide hole 123, the radial positioning pieces can be slidably installed on the adjusting head connecting piece through the guide holes, and after the six radial positioning pieces are installed, a complete adjusting head assembly can be obtained. During the in-service use, need put into the interior angle interface with the regulation head in advance, carry out subsequent operation again, because adjust the head and constitute by six independent radial setting elements, consequently can form loose structure after directly putting into the interior angle interface, be unfavorable for subsequent operation, consequently adopt one to adjust first connecting piece 3 and connect the regulation head in this embodiment, make it form a relatively stable overall structure. When the external size of the adjusting head is increased by the outward extending movement of the radial positioning piece, the guide part can enable the radial positioning piece to move towards the fixed direction, and the deformation of the whole structure of the adjusting head is avoided.
The diameter of the first end to the second end of the driving member 2 is gradually reduced to form a tapered structure corresponding to the inclined portion 121, and an external thread is arranged on the outer side wall of the driving member and can be matched with the internal thread of the inclined portion 121. The first end of the driving member is provided with a driving interface 21 through which force can be applied to the driving member, as shown in fig. 1, the driving interface is in the shape of an inner hexagonal groove and can be screwed by an inner hexagonal wrench corresponding to the driving interface, or as shown in fig. 3, the driving interface is an outer hexagonal joint protruding outwards and can be screwed by a common wrench.
Specific methods of use of the utility model are provided below: installing six radial positioning pieces on the adjusting head connecting piece to form a complete adjusting head; placing an adjusting head into an inner angle interface of the fastener; the driving piece is abutted into an adjusting hole in the middle of the adjusting head from the upper part, and then the driving piece is rotated through a wrench to drive the radial positioning piece to expand and move outwards until the radial positioning piece is abutted with the inner angle connector; continuing to screw the driving piece until the installation of the fastener meets the strength standard; and reversely screwing the driving piece to separate the adjusting head from the driving piece, and sequentially disassembling all the components to finish the installation of the fastener once.
Example 2
As shown in fig. 4 and 5, the structure of this embodiment is partially the same as that of embodiment 1, except that an additional driving rod 4 is added, where the driving rod 4 includes an axial driving main rod 41 and two radial driving push rods 42, and the two driving push rods are respectively vertically installed at two sides of the driving main rod near the upper end, so as to apply a pushing force. The driving push rod is connected with the driving main rod through the rotating shaft, and in a non-use state, the driving push rod can be folded in a downward rotating mode and is folded to be attached to the driving main rod in a parallel mode, so that the space is saved, and the storage is facilitated. The lower end of the driving main rod is provided with a connecting part which is used for being matched with a driving interface of the driving head, as shown in fig. 1 and 4, the driving interface is an inner hexagonal notch, the connecting part is an outer hexagonal clamping head, and the connecting part and the driving interface can be clamped. It should be noted that fig. 1 and 4 are only one of the connection manners, and the clip and the notch can be arranged interchangeably, or the hexagonal clamping can be replaced by a threaded connection. When the embodiment is used, the driving piece is not screwed by a wrench, but directly driven by the driving rod, so that the efficiency is further improved.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (7)
1. An adjustable fastening arrangement for an interior corner fastener, said adjustable fastening arrangement comprising: comprises an adjusting head (1) and a driving piece (2); the adjusting head (1) is provided with an adjusting hole (12) which is through along the axial direction, the adjusting hole (12) comprises an inclined part (121) with the caliber gradually reduced from the first end to the second end of the adjusting head, and an internal thread is formed on the inclined part (121); the adjusting head is formed by arranging a plurality of radial positioning pieces (11) around a shaft horizontal circumference, and the outer side of each radial positioning piece (11) is provided with at least one inner angle abutting surface (111); the diameter of the first end to the second end of the driving piece (2) is gradually reduced to form a conical structure corresponding to the inclined portion (121), an external thread capable of being matched with the internal thread of the inclined portion (121) is arranged on the outer side wall of the driving piece (2), and a driving interface (21) is arranged at the end portion of the first end of the driving piece.
2. An adjustable fastening arrangement for an interior corner fastener according to claim 1, wherein: the fastening device also comprises an adjusting head connecting piece (3); the adjusting head connecting piece (3) is provided with a plurality of guide parts (31) extending along the radial direction, and the number of the guide parts (31) is consistent with that of the radial positioning pieces (11); the adjusting hole (12) further comprises a positioning part (122) which is arranged at a position close to the second end of the adjusting head and is communicated with the inclined part (121), the inner side wall of the positioning part (122) is provided with a plurality of guide holes (123) extending along the radial direction, the plurality of guide holes (123) are horizontally and circumferentially arranged around the central axis of the adjusting head, and each radial positioning piece (11) is provided with one guide hole (123); the guide hole (123) and the guide part (31) can form sliding connection.
3. An adjustable fastening arrangement for an interior corner fastener according to claim 2, wherein: the fastening device further comprises a driving rod (4), wherein the driving rod (4) comprises a driving main rod (41) and two driving push rods (42) which are perpendicular to the driving main rod (41) and arranged on two sides of the driving main rod; the lower end of the driving main rod (41) forms a connecting part (411) matched with the driving interface (21).
4. An adjustable fastening arrangement for an interior corner fastener according to claim 3, wherein: the driving push rod (42) is movably connected with the driving main rod (41).
5. An adjustable fastening arrangement for an interior corner fastener according to claim 4, wherein: the driving push rod (42) is connected with the driving main rod (41) through a rotating shaft, and the driving push rod (42) can rotate to be attached to the driving main rod (41) in parallel.
6. An adjustable fastening arrangement for an interior corner fastener, as claimed in claim 1, wherein: the driving interface (21) is an inner hexagonal notch or an outer hexagonal joint.
7. An adjustable fastening arrangement for an interior corner fastener according to claim 3, wherein: the driving interface (21) is a notch with internal threads or a joint with external threads, and the connecting part (411) has a thread matching structure opposite to that of the driving interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123244057.0U CN216707380U (en) | 2021-12-22 | 2021-12-22 | Adjustable fastening device for inner angle fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123244057.0U CN216707380U (en) | 2021-12-22 | 2021-12-22 | Adjustable fastening device for inner angle fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216707380U true CN216707380U (en) | 2022-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123244057.0U Active CN216707380U (en) | 2021-12-22 | 2021-12-22 | Adjustable fastening device for inner angle fastener |
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| Country | Link |
|---|---|
| CN (1) | CN216707380U (en) |
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2021
- 2021-12-22 CN CN202123244057.0U patent/CN216707380U/en active Active
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