CN214499657U

CN214499657U - High-precision structural fastener

Info

Publication number: CN214499657U
Application number: CN202120638453.2U
Authority: CN
Inventors: 吴永应
Original assignee: Shenzhen Lujiu Hardware Products Co ltd
Current assignee: Shenzhen Lujiu Hardware Products Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-10-26
Anticipated expiration: 2031-03-30

Abstract

The utility model discloses a high-precision structure fastener, which comprises an outer shell, one side inner wall of shell rotates and is connected with two-way lead screw, and the opposite side of shell has seted up first circular through-hole, and two-way lead screw extends to the outside of shell in first circular through-hole department, two-way lead screw is in the outside one end fixedly connected with handle of shell, the outside cover in both ends of two-way lead screw all is equipped with screw, two the equal fixedly connected with connecting block in bottom of screw, two the solid fixed ring of the equal fixedly connected with in bottom of connecting block, two-way lead screw is close to the outside one end of handle and has the worm wheel through the key-type connection, first spout has been seted up in the top department of two-way lead screw to the inner wall of shell. The utility model discloses a set up solid fixed ring, can be fixed with two column parts with two solid fixed rings when needing to fix after the cross-section contact of two column parts, then make two solid fixed rings be close to each other through rotating the handle to reach and let the fixed effect of two column parts.

Description

High-precision structural fastener

Technical Field

The utility model relates to an accurate part auxiliary device technical field especially relates to a high-accuracy structural fastener.

Background

The mechanical device which can fasten mechanical parts when fastening the piece has wide application range, including various industries such as electronics, electrical appliances, machinery, metallurgy, dies and the like.

Through retrieval, the Chinese patent with the publication number of CN211039273U discloses a high-precision automobile fastener, which comprises two clamps, wherein one ends of the two clamps are hinged, the other ends of the two clamps are respectively provided with a fixed block, one side of one fixed block is provided with a positioning block, one side of the other fixed block, which is close to the positioning block, is provided with a positioning groove, the positioning block is inserted into the positioning groove, and a fixing mechanism is arranged in the positioning groove; the fixing mechanism comprises a through groove, the through groove is communicated with the positioning groove, and a clamping block is arranged inside the through groove. Although the above-mentioned patent can function as a fastening part, it has a limited range of use and can only be applied to smaller parts.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a high-precision structural fastener.

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

a high-precision structure fastener comprises a shell, wherein the inner wall of one side of the shell is rotatably connected with a bidirectional screw rod, the other side of the shell is provided with a first circular through hole, the bidirectional screw rod extends to the outside of the shell at the first circular through hole, one end of the bidirectional screw rod, which is positioned at the outside of the shell, is fixedly connected with a handle, the outsides of two ends of the bidirectional screw rod are respectively sleeved with a screw nut, the bottom ends of the two screw nuts are respectively and fixedly connected with a connecting block, the bottom ends of the two connecting blocks are respectively and fixedly connected with a fixing ring, one end of the bidirectional screw rod, which is close to the outside of the handle, is in key connection with a worm wheel, the inner wall of the shell is provided with a first chute at the top end of the bidirectional screw rod, the shell is in sliding connection with a first sliding block at the first chute, one side of the first sliding block is fixedly connected with a second thread bushing, one side of the second thread bushing is fixedly connected with a worm, the worm is meshed with the worm wheel, a second sliding groove is formed in one side, away from the first sliding block, of the shell, the shell is connected with a second sliding block in a sliding mode in the second sliding groove, and the second sliding block is fixedly connected with the worm.

Furthermore, a third circular through hole is formed in the top end of the shell above the second threaded sleeve, the shell is rotatably connected with a second threaded rod in the third circular through hole, the second threaded rod is in threaded connection with the second threaded sleeve, the bottom end of the second threaded rod is rotatably connected with the inner wall of the bottom end of the shell, and a first knob is fixedly connected to the top end of the second threaded rod.

Further, the fixing ring comprises a first ring body and a second ring body, the first ring body is fixedly connected with the connecting block, and the second ring body is rotatably connected with the first ring body through a rotating shaft.

Furthermore, the one end fixedly connected with first threaded rod of pivot is kept away from to first ring body, the one end rotation that the pivot was kept away from to the second ring body is connected with first thread bush, first thread bush and first threaded rod looks adaptation.

Further, a plurality of sleeves of the inboard fixedly connected with of solid fixed ring, telescopic bottom inner wall fixedly connected with pressure spring, pressure spring's top fixedly connected with fixed column, fixed column and telescopic inner wall sliding connection.

Furthermore, both sides of the top end of the shell are fixedly connected with brackets, and a handle is fixedly connected between the two brackets.

The utility model has the advantages that:

1. through setting up solid fixed ring, can be fixed two column parts with two solid fixed rings when need fix after the cross-section contact of two column parts, then make two solid fixed rings be close to each other through rotating the handle to reach the effect that lets two column parts fixed.

2. Through setting up fixed column and compression spring, can place the part in solid fixed ring's inside when using the stationary ring stationary part, then utilize first thread bush and second thread bush with first ring body and second ring body fixed, the fixed column can make self hug closely the part surface through compression spring this moment to it is fixed with the part.

3. Through setting up two solid fixed rings, except can utilizing two solid fixed rings to fix two parts respectively, can also utilize the space between two solid fixed rings to carry out the centre gripping to the part to be applicable to less part, let the holistic practicality of device be improved.

Drawings

FIG. 1 is a cross-sectional view of a high-precision structural fastener proposed in embodiment 1;

FIG. 2 is a side cross-sectional view of a high-precision structural fastener proposed in example 1;

FIG. 3 is a side view of a retainer ring of a high-precision structural fastener proposed in embodiment 1;

FIG. 4 is a cross-sectional view of a sleeve of a high-precision structural fastener proposed in embodiment 1;

fig. 5 is a sectional view of a high-precision structural fastener proposed in embodiment 2.

In the figure: the device comprises a shell 1, a bidirectional screw rod 2, a nut 3, a worm wheel 4, a handle 5, a connecting block 6, a fixing ring 7, a first ring body 701, a second ring body 702, a fixing column 8, a sleeve 9, a first threaded sleeve 10, a first threaded rod 11, a pressure spring 12, a second threaded rod 13, a second threaded sleeve 14, a first slider 15, a first knob 16, a worm 17, a second slider 18, a support 19 and a handle 20.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-4, a high-precision structure fastener comprises a housing 1, wherein the inner wall of one side of the housing 1 is rotatably connected with a bidirectional screw 2, the other side of the housing 1 is provided with a first circular through hole, the bidirectional screw 2 extends to the outside of the housing 1 at the first circular through hole, one end of the bidirectional screw 2, which is positioned at the outside of the housing 1, is fixedly connected with a handle 5, the outsides of the two ends of the bidirectional screw 2 are respectively sleeved with a screw 3, the bottom ends of the two screws 3 are respectively and fixedly connected with a connecting block 6, the bottom ends of the two connecting blocks 6 are respectively and fixedly connected with a fixing ring 7, one end of the bidirectional screw 2, which is close to the outside of the handle 5, is connected with a worm wheel 4 through a key, the inner wall of the housing 1 is provided with a first chute at the top end of the bidirectional screw 2, the housing 1 is slidably connected with a first sliding block 15 at the first chute, one side of the first sliding block 15 is fixedly connected with a second threaded sleeve 14, one side fixedly connected with worm 17 of second thread bush 14, worm 17 and worm wheel 4 mesh, the second spout has been seted up to the one side that first slider 15 was kept away from to shell 1, and shell 1 has second slider 18 in second spout department sliding connection, second slider 18 and worm 17 fixed connection. Third circular through-hole has been seted up in the top of second thread bush 14 department on shell 1's top, and shell 1 rotates in third circular through-hole department and is connected with second threaded rod 13, second threaded rod 13 and second thread bush 14 threaded connection, and the bottom of second threaded rod 13 and the bottom inner wall of shell 1 rotate to be connected, the first knob 16 of top fixedly connected with of second threaded rod 13. The fixing ring 7 comprises a first ring body 701 and a second ring body 702, the first ring body 701 is fixedly connected with the connecting block 6, and the second ring body 702 is rotatably connected with the first ring body 701 through a rotating shaft. The one end fixedly connected with first threaded rod 11 of pivot is kept away from to first ring body 701, the one end rotation that the pivot was kept away from to second ring body 702 is connected with first thread bush 10, first thread bush 10 and first threaded rod 11 looks adaptation. The inner side of the fixing ring 7 is fixedly connected with a plurality of sleeves 9, the bottom inner wall of each sleeve 9 is fixedly connected with a pressure spring 12, the top end of each pressure spring 12 is fixedly connected with a fixing column 8, and the fixing columns 8 are connected with the inner walls of the sleeves 9 in a sliding mode.

The working principle is as follows: when the device is used for fastening parts, firstly twisting two first thread sleeves 10 to separate the first thread sleeves 10 from a first threaded rod 11, then respectively placing two parts to be fastened inside two fixing rings 7, and re-twisting the first thread sleeves 10 and the first threaded rod, at this time, rotating a first knob 16, driving a second threaded rod 13 to rotate by the first knob 16 to enable a second thread sleeve 14 to move upwards, driving a worm 17 to ascend to separate a worm wheel 4 by the second thread sleeve 14, then rotating a handle 5, driving a bidirectional screw 2 to rotate by the handle 5 to enable two screw nuts 3 to approach each other, driving the fixing rings 7 to move by the two screw 3 through a connecting block 6, enabling the two parts to be fastened by moving the fixing rings 7, then reversely rotating the first knob 16 to enable the second thread sleeves 14 to drive the worm 17 to descend to contact the worm wheel 4, at this time, the worm wheel 4 is locked by the worm 17 and is not rotated, so that the whole device is in a stable state and the parts can be well fixed.

In addition, when the two fixing rings 7 are moved closer to each other by rotating the handle 5, the component can be placed between the two fixing rings 7 and fastened by the two fixing rings 7.

Example 2

Referring to fig. 5, compared to embodiment 1, in this embodiment, in order to increase the convenience of the device in use, two sides of the top end of the housing 1 are fixedly connected with brackets 19, and a handle 20 is fixedly connected between the two brackets 19.

The working principle is as follows: when the device is used for fastening parts, the handle 20 is held by a hand, firstly the two first thread sleeves 10 are twisted to separate the first thread sleeves 10 from the first thread rod 11, then the two parts to be fastened are respectively placed in the two fixing rings 7, the first thread sleeves 10 and the first thread rod are twisted again, at the moment, the first knob 16 can be rotated, the first knob 16 drives the second thread rod 13 to rotate to enable the second thread sleeves 14 to move upwards, the second thread sleeves 14 drive the worm 17 to ascend to separate the worm wheel 4, then the handle 5 is rotated, the handle 5 drives the bidirectional screw rod 2 to rotate to enable the two screw nuts 3 to approach each other, the two screw nuts 3 drive the fixing rings 7 to move through the connecting blocks 6, the two parts can be fastened through the moving of the fixing rings 7, at the moment, the first knob 16 is rotated reversely, so that the second thread sleeves 14 drive the worm 17 to descend to contact the worm wheel 4, at this time, the worm wheel 4 is locked by the worm 17 and is not rotated, so that the whole device is in a stable state and the parts can be well fixed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The high-precision structural fastener comprises a shell (1) and is characterized in that the inner wall of one side of the shell (1) is rotatably connected with a bidirectional screw (2), the other side of the shell (1) is provided with a first circular through hole, the bidirectional screw (2) extends to the outside of the shell (1) at the first circular through hole, one end of the bidirectional screw (2) positioned outside the shell (1) is fixedly connected with a handle (5), the outsides of two ends of the bidirectional screw (2) are respectively sleeved with a screw (3), the bottom ends of the two screws (3) are respectively and fixedly connected with a connecting block (6), the bottom ends of the two connecting blocks (6) are respectively and fixedly connected with a fixing ring (7), one end of the bidirectional screw (2) close to the outside of the handle (5) is connected with a worm wheel (4) through a key, and the inner wall of the shell (1) is provided with a first chute at the top end of the bidirectional screw (2), and shell (1) has first slider (15) in first spout department sliding connection, one side fixedly connected with second thread bush (14) of first slider (15), one side fixedly connected with worm (17) of second thread bush (14), worm (17) and worm wheel (4) meshing, the second spout has been seted up to one side that first slider (15) were kept away from in shell (1), and shell (1) has second slider (18) in second spout department sliding connection, second slider (18) and worm (17) fixed connection.

2. The high-precision structural fastener as claimed in claim 1, wherein a third circular through hole is formed in the top end of the housing (1) above the second threaded sleeve (14), a second threaded rod (13) is rotatably connected to the housing (1) at the third circular through hole, the second threaded rod (13) is in threaded connection with the second threaded sleeve (14), the bottom end of the second threaded rod (13) is rotatably connected with the inner wall of the bottom end of the housing (1), and a first knob (16) is fixedly connected to the top end of the second threaded rod (13).

3. A high-precision structural fastener, according to claim 1, characterized in that said fixing ring (7) comprises a first ring body (701) and a second ring body (702), said first ring body (701) being fixedly connected to said connecting block (6), said second ring body (702) being rotatably connected to said first ring body (701) by means of a rotating shaft.

4. A high-precision structural fastener according to claim 3, characterized in that a first threaded rod (11) is fixedly connected to one end of the first ring body (701) far away from the rotation axis, a first threaded sleeve (10) is rotatably connected to one end of the second ring body (702) far away from the rotation axis, and the first threaded sleeve (10) is matched with the first threaded rod (11).

5. A high-precision structural fastener according to claim 3, characterized in that a plurality of sleeves (9) are fixedly connected to the inner side of the fixing ring (7), a pressure spring (12) is fixedly connected to the inner wall of the bottom end of each sleeve (9), a fixing column (8) is fixedly connected to the top end of each pressure spring (12), and the fixing columns (8) are slidably connected with the inner wall of the sleeves (9).

6. A high-precision structural fastener according to claim 1, characterized in that brackets (19) are fixedly connected to both sides of the top end of said housing (1), and a handle (20) is fixedly connected between said brackets (19).