CN217345119U

CN217345119U - Universal fastening device for inner angle fastener

Info

Publication number: CN217345119U
Application number: CN202123242919.6U
Authority: CN
Inventors: 丁泽成; 王文广; 周东珊; 陈前; 蒋明哲
Original assignee: Zhejiang Yasha Decoration Co Ltd
Current assignee: Zhejiang Yasha Decoration Co Ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-09-02
Anticipated expiration: 2031-12-22

Abstract

The utility model provides a universal fastening device for an inner angle fastener, which comprises an adjusting head and a power part; an adjusting hole is formed in the axis of the adjusting head, the caliber of the adjusting hole is gradually reduced to form a conical structure, and a plurality of first guide parts are axially arranged on the side wall of the adjusting hole; the adjusting head is provided with a plurality of radial positioning pieces uniformly divided by an axial section, and each radial positioning piece is provided with a first guide part; the power part is provided with a locking head, the diameter of the first end to the second end of the locking head is gradually reduced to form a taper structure corresponding to the adjusting hole, a plurality of first matching parts are axially arranged on the outer side wall of the locking head, each first matching part corresponds to one first guide part, and the first guide parts and the first matching parts can form sliding fit. Through the utility model discloses, can realize adjusting the level and smooth regulation of head external contour size to adapt to fasteners such as the interior angle bolt of various specifications, thereby improve the efficiency of construction.

Description

Universal fastening device for inner angle fastener

Technical Field

The utility model relates to a machine part installs technical field, specifically relates to a general fastener for interior angle fastener.

Background

The inner angle 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 using 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 angle fastener 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.

To some mechanical equipment, the dimensional requirement and the strength performance requirement at different positions are different, so that the interior angle fasteners of various different specifications are often used during mechanical installation, the interior angle fasteners of different specifications mean that interior angle wrenches of various different specifications are required to be installed and fixed, time and labor are wasted during the replacement of the wrenches, the wrenches corresponding to the sizes of all the interior angle fasteners are required to be found, and the construction efficiency is seriously influenced. Patent application No. 201520446193.3's patent document provides a portable allen key external member, and this allen key external member includes the spanner pullover of an allen key and a plurality of different specifications, and when the spanner pullover was installed including the difference, the allen key can be installed the hexagon socket head cap screw bolt of difference, need not to carry a large amount of different interior angle spanners, and the construction is lighter. However, in practical application, the wrench socket heads with different sizes still need to be frequently replaced, the trouble caused by searching for the corresponding size in the process of replacing the wrench socket head is not solved, and the problem of low construction efficiency still exists.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a general fastener for interior angle fastener, the device can adjust self size, need not to change the subassembly when facing not unidimensional interior angle fastener, makes the efficiency of construction promote greatly.

In order to achieve the above purpose, the utility model adopts the following technical scheme.

A universal fastening device for an interior corner fastener, characterized by: comprises an adjusting head and a power part; the adjusting head is characterized in that an adjusting hole is formed in the axis of the adjusting head, the adjusting hole is gradually reduced from the first end to the second end of the adjusting head to form a conical structure, and a plurality of first guide portions are axially arranged on the side wall of the adjusting hole; the adjusting head is formed by a plurality of radial positioning pieces which are arranged around the circumference of a shaft, the outer side of each radial positioning piece is provided with at least one inner angle abutting surface, the inner side of each radial positioning piece is provided with a guide inclined surface, the guide inclined surfaces of the radial positioning pieces are combined to form the adjusting hole, and each radial positioning piece is provided with a first guide part; the power part is provided with a locking head, the diameter of the first end to the second end of the locking head is gradually reduced to form a conical structure corresponding to the adjusting hole, a plurality of first matching parts are axially arranged on the outer side wall of the locking head, each first matching part corresponds to one first guide part, and the first guide parts and the first matching parts can form sliding fit.

The utility model discloses mainly realize the effect of the bore size of freely adjusting the interior angle joint through the expanded regulation head that can outwards extend. 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 interface with different calibers, because the adjusting head comprises six independent radial positioning pieces, the radial positioning pieces can extend and move towards the direction away from the central axis, thereby changing the size of the outline of the adjusting head and finally matching the inner angle interface. In particular, the extension movement of the radial positioning element is effected by the power element. The adjusting head is provided with an adjusting hole, the caliber of the adjusting hole gradually shrinks from the first end to the second end of the adjusting head to form a conical structure, and the side wall of the adjusting hole is provided with a plurality of axial guide parts; the power part is provided with a locking head, the locking head forms a conical structure consistent with the slope of the adjusting hole, and the outer side wall of the locking head is provided with a plurality of guide matching parts along the axial direction. When the locking head is inserted into the adjusting hole, the first guide part and the first matching part form sliding fit, the radial positioning part is pressed downwards along with the locking head, and therefore the radial positioning part is outwards pressed, the axial center is gradually kept away from and the radial positioning part moves outwards, the external profile of the adjusting head is increased, the specification of the inner angle interface is matched, and meanwhile, due to the limiting effect of the first guide part and the first matching part, the radial positioning part is relatively stable when the radial positioning part moves outwards.

Furthermore, the fastening device also comprises an adjusting head connecting piece; the adjusting head connecting piece is provided with a plurality of second guide parts extending out along the radial direction, and the number of the second guide parts is consistent with that of the radial positioning pieces; the adjusting head 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 radial guide holes, the 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 second guide part can form sliding connection.

Adjust first connecting piece and form the ascending supporting structure of horizontal direction through the second guide part that radially stretches out, the support forms a plurality of branches to the outside, each branch all forms the correspondence with a guiding hole, second guide part and guiding hole cooperation back, radial setting element can form sliding connection with adjusting first connecting piece, radial setting element can be followed the second guide part and moved towards the direction of keeping away from the first axis of regulation and slide, a plurality of radial setting elements correspond and install back on the second guide part of adjusting first connecting piece, can form the adjusting head subassembly that uses adjusting first connecting piece as central structure.

Furthermore, the power piece also comprises a power main rod which is axially arranged, and the lower end of the power main rod is connected with the first end of the locking head.

Furthermore, at least two power push rods perpendicular to the power main rod are connected to the power main rod. The power push rod can drive the power main rod to rotate, so that the locking head rotates.

Furthermore, the power push rod is movably connected with the power main rod.

Furthermore, the power push rod is connected with the power main rod through a rotating shaft, and the power push rod can rotate to be attached to the power main rod in parallel.

Because power push rod is compared in the perpendicular outside stretching out of power mobile jib, consequently can occupy great space, adopt swing joint's method to set up power push rod and can fold power push rod to closely parallel with power mobile jib through the pivot when non-user state, make things convenient for fastener's accomodating. It should be noted that the parallel is not limited to perfect parallel, but describes a state where the power main rod and the power push rod are approximately aligned and close to each other.

Further, the second end of locking piece is equipped with joint portion, regulation head connecting piece middle part be equipped with joint cooperation portion, joint portion and joint cooperation portion can form the cooperation along the axial.

Furthermore, joint portion and joint cooperation portion be gear column structure.

After the joint portion of locking piece second end and the joint cooperation portion of adjusting the head connecting piece formed the cooperation, during the rotatory power spare, it can receive the effort that comes from joint portion and along with the locking piece is together rotatory to adjust the head connecting piece, after radial setting element and interior angle interface butt are accomplished, during the rotatory power spare, adjust the head and receive the effort from first guide part and first cooperation portion department on the one hand, on the other hand receives the effort from second guide part and guiding hole department, two power superposes and can make the rotation of adjusting the head more laborsaving and high-efficient.

To sum up, use the utility model discloses technical scheme can gain following beneficial effect:

1. the utility model discloses an interior angle interface that suitable interior angle helical fastener was joined in marriage to regulation head that has a plurality of radial setting element combinations to form because the regulation head can be in the allowed range smooth adjustment bore size, consequently can join in marriage arbitrary well interior angle helical fastener who fits this within range, has greatly widened application scope, has avoided instruments such as conventional interior hexagonal spanner inefficiency in the use, the shortcoming of wasting time and energy.

2. The utility model discloses a locking head exerts radial pressure to adjusting the head, makes the interior angle butt face of radial setting element lateral surface can have and form inseparable butt with interior angle interface lateral wall, makes to form stronger locking effect between regulation head and the fastener, adjusts the head when rotating the regulation head and is difficult for coming off from the interior angle interface, and it is more convenient to operate.

3. The utility model discloses a plurality of radial setting elements of well constitution regulation head form through adjusting the head connecting piece and connect, adjust the head connecting piece and can play the guide effect to the removal of radial setting element, make and adjust first outline extension more even, and can use to adjust the head connecting piece and assemble into the regulation head with radial setting element in advance before carrying out the fastener installation, be convenient for will adjust the head card and go into to the interior angle interface of fastener.

4. The utility model discloses a joint portion and joint cooperation portion make and adjust first connecting piece and power spare and form the atress and be related, use the power spare to twist and move more laborsaving when adjusting the head.

5. The utility model discloses the power push rod and the power mobile jib of setting on the power mobile jib form swing joint, and power push rod is rotatable to pressing close to with the power mobile jib is parallel, has reduced the space occupation of device under non-user state, is convenient for accomodate.

Drawings

FIG. 1 is a schematic view of an adjusting head in embodiment 1;

FIG. 2 is a schematic view of the power unit according to embodiment 1;

FIG. 3 is an exploded view of the entire structure of the fastening device in embodiment 1;

FIG. 4 is a schematic structural view showing an operating state of the fastening device according to embodiment 1;

FIG. 5 is a schematic view of an adjusting head in embodiment 2;

in the figure, 1-an adjusting head, 2-a power piece, 3-an adjusting head connecting piece, 11-a radial positioning piece, 12-an adjusting hole, 13-a positioning part, 21-a locking head, 22-a power main rod, 23-a power push rod, 31-a second guide part, 32-a clamping matching part, 111-an inner angle abutting surface, 112-a guide inclined surface, 113-a first guide part, 114-a guide hole, 211-a first matching part and 212-a clamping part.

Detailed Description

The 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 fastening device for the internal-angle helical fastener provided by the embodiment includes four relatively independent parts: the adjusting head comprises an adjusting head 1, a power piece 2 and an adjusting head connecting piece 3.

The adjusting head 1 is equally divided into six identical radial positioning elements 11 along the axial tangent plane, and the radial positioning elements 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 aperture of the adjusting hole is gradually reduced from the first end to the second end of the adjusting head to form a conical surface structure, a positioning part 13 is further arranged at the position close to the second end of the adjusting head, and the adjusting hole is communicated with the positioning part to form a through hole structure which is through the adjusting head. Each radial setting element 11 all has and is located two interior angle butt faces 111 in the outside and is located the direction inclined plane 112 of inboard, six radial setting element's direction inclined plane constitute jointly regulation hole 12, two interior angle butt faces form an outer apex angle, 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 do not become the butt with the interior apex angle of six interior angle interfaces, the regulation head can form the connection of certain intensity with the fastener, the regulation head can not drop easily from the interior angle interface. A first guide part 113 in the shape of a strip groove is arranged on the guide inclined surface of each radial positioning element, and a guide hole 114 extending in the radial direction is arranged at the position corresponding to the guide part. Adjust first connecting piece 3 appearance and be the gear form, radially outwards be formed with six branches, second guide part 31 promptly, each second guide part 31 all corresponds with a guiding hole 114, and radial setting element accessible guiding hole slidable mounting is to adjusting first connecting piece on, after six radial setting elements have been installed, can obtain a complete first subassembly of adjusting. During the in-service use, need put into the interior angle interface with the regulation head in advance, carry out subsequent operation again, because the regulation head comprises 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 power part 2 comprises a locking head 21 which is relatively positioned below, a vertically arranged power main rod 22 connected with the first end of the locking head, and a transversely arranged power push rod 23 which is perpendicular to the power main rod. Wherein, the locking head is used for applying radial drive to adjusting the head and makes radial setting element outwards extend and remove, and first external dimension is adjusted in the increase to after the interior angle interface formation butt of adjusting head and fastener, provide radial locking power, make radial setting element and interior angle interface form inseparable butt. Specifically, the caliber of the locking head is gradually reduced from the first end to the second end to form a conical surface structure, and the conical surface structure of the locking head and the conical surface structure of the adjusting hole have the same taper; the outer side wall of the locking head is provided with a first matching part 211 which is long in the radial direction and forms a bulge relative to the outer side wall, and the first matching part 211 and the first guide part 113 can form sliding fit. The second end of locking head is equipped with joint portion 212, and joint portion 212 can form the cooperation with the joint cooperation portion 32 that is formed at regulation head connecting piece 3 middle part, makes unable pivot relative rotation between locking head and the regulation head connecting piece, and only can follow axial displacement.

The power push rod is used for conveniently exerting external force on the device to enable the adjusting head to drive the fastener to rotate, the power main rod plays a role in force conduction, force at the power push rod is transmitted to the locking head, the locking head acts on the adjusting head, and finally the adjusting head acts on the fastener. Specifically, power push rod and power mobile jib adopt the swing joint mode, if the pivot is connected, power push rod is rotatable to the parallel state of hugging closely with the power mobile jib, avoids the space to occupy, convenient storage.

The following provides a specific method of use of the present invention: installing six radial positioning pieces 11 on the adjusting head connecting piece 3 to form a complete adjusting head 1; placing the adjusting head 1 into an inner corner interface of the fastener; the locking head 21 of the power part 2 is abutted into the adjusting hole in the middle of the adjusting head from the upper part, the first matching part of the locking head is matched and corresponds to the first guiding part at the adjusting hole, then the locking head is pressed down through the power main rod, and along with the pressing down of the locking head, the radial positioning part uniformly moves and unfolds outwards under the guiding action of the adjusting head connecting part until the radial positioning part is abutted with the inner angle connector; rotating the fastener through the power push rod until the installation strength standard is met; the power push rod is reversely pushed to separate the adjusting head from the locking head, and all the components are disassembled in sequence, so that the installation of the fastener is completed.

Example 2

The general structure of this embodiment is the same as that of embodiment 1, except that the structure of the adjusting head and the radial positioning member is slightly different. As shown in fig. 5, the dividing manner of the adjusting head in this embodiment is different from that in fig. 3, the outer sidewall of the radial positioning element obtained by the dividing method shown in fig. 5 only has one inner corner abutting surface 111, and each radial positioning element abuts against one side edge of the inner corner interface instead of the inner corner in actual use.

The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.

Claims

1. A universal fastening device for an interior corner fastener, characterized by: comprises an adjusting head (1) and a power part (2); an adjusting hole (12) is formed in the axis of the adjusting head (1), the adjusting hole (12) is gradually reduced from the first end to the second end of the adjusting head to form a conical structure, and a plurality of first guide portions (113) are axially arranged on the side wall of the adjusting hole; the adjusting head is formed by arranging a plurality of radial positioning pieces (11) around the circumference of a shaft, the outer side of each radial positioning piece is provided with at least one inner angle abutting surface (111), the inner side of each radial positioning piece is provided with a guide inclined surface (112), the guide inclined surfaces (112) of the radial positioning pieces are combined to form the adjusting hole (12), and each radial positioning piece (11) is provided with a first guide part (113); the power part (2) is provided with a locking head (21), the diameter of the first end to the second end of the locking head (21) is gradually reduced to form a conical structure corresponding to the adjusting hole (12), a plurality of first matching parts (211) are arranged on the outer side wall of the locking head along the axial direction, each first matching part (211) corresponds to one first guide part in a forming mode, and the first guide parts and the first matching parts can form sliding fit.

2. A universal fastening device for inner corner fasteners 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 second guide parts (31) extending out along the radial direction, and the number of the second guide parts (31) is consistent with that of the radial positioning pieces (11); the adjusting head further comprises a positioning part (13) which is arranged at a position close to the second end of the adjusting head and communicated with the adjusting hole (12), the inner side wall of the positioning part (13) is provided with a plurality of radial guide holes (114), the guide holes (114) are horizontally and circumferentially arranged around the central axis of the adjusting head, and each radial positioning part (11) is provided with one guide hole (114); the guide hole (114) and the second guide part (31) can form sliding connection.

3. A universal fastening device for an interior corner fastener, according to claim 2, wherein: the power piece further comprises a power main rod (22) which is axially arranged, and the lower end of the power main rod (22) is connected with the first end of the locking head (21).

4. A universal fastening device for an interior corner fastener, according to claim 3, wherein: the power main rod (22) is connected with at least two power push rods (23) which are vertical to the power main rod.

5. A universal fastening device for inner corner fasteners according to claim 4, wherein: the power push rod (23) is movably connected with the power main rod (22).

6. A universal fastening device for an interior corner fastener, according to claim 5, wherein: the power push rod (23) is connected with the power main rod (22) through a rotating shaft, and the power push rod (23) can rotate to be attached to the power main rod (22) in parallel.

7. A universal fastening device for inner corner fasteners according to claim 2, wherein: the second end of locking head (21) is equipped with joint portion (212), regulation head connecting piece (3) middle part be equipped with joint cooperation portion (32), joint portion and joint cooperation portion can form the cooperation along the axial.