CN112727898B

CN112727898B - Screw with good adaptability

Info

Publication number: CN112727898B
Application number: CN202011543771.7A
Authority: CN
Inventors: 李勇
Original assignee: Zhejiang Tianyuan Metal Products Co ltd
Current assignee: Zhejiang Tianyuan Metal Products Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2022-07-01
Anticipated expiration: 2040-12-24
Also published as: CN112727898A

Abstract

The invention discloses a screw with good adaptability, which comprises a screw mechanism and an anti-theft screw head integrally formed at the rear end of the screw mechanism, wherein the screw mechanism comprises a screw rod body, a plurality of sliding grooves, a plurality of sliding bodies and a plurality of telescopic springs, the circumferential surface of the screw rod body is provided with the sliding grooves which are uniformly distributed, the depth of the sliding grooves is gradually reduced from front to back, the sliding bodies are arranged in the sliding grooves, the telescopic springs are arranged between the front end of the sliding bodies and the front end of the sliding grooves, the inner ends of the sliding bodies are matched with the bottom surfaces of the sliding grooves, the anti-theft screw head comprises an inner cap body, an outer cap body and a connecting mechanism, the rear end of the inner cap body is provided with a circular groove, the inner wall of the circular groove is provided with an annular groove and two clamping grooves which are correspondingly arranged and are communicated with the annular groove, the clamping grooves are in right-angled triangles, the outer cap body is rotatably sleeved on the inner cap body, compared with the prior art, can carry out precision positioning to the connecting piece to guarantee the connection accuracy, and possess the theftproof function.

Description

Screw with good adaptability

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of fasteners, in particular to the technical field of screws with good adaptability.

[ background of the invention ]

Screws are generally used for connecting two parts, and in general mechanical connection, if the connection precision requirement is not high, precise positioning of the screw connection is not necessary. However, since the screw thread is deformed during screw connection, the positional relationship of the connection member is changed, and in some precision machines requiring precise positioning, such a change is not allowed, and also has no anti-theft function, and is poor in adaptability, and therefore, it is necessary to precisely position the connection member to ensure connection precision.

[ summary of the invention ]

The invention aims to solve the problems in the prior art and provides a screw with good adaptability, which can precisely position a connecting piece to ensure the connection precision and has an anti-theft function.

In order to achieve the purpose, the invention provides a screw with good adaptability, which comprises a screw mechanism and an anti-theft screw head integrally formed at the rear end of the screw mechanism, wherein the screw mechanism comprises a screw rod body, a plurality of sliding grooves, a plurality of sliding bodies and a plurality of telescopic springs, the peripheral surface of the screw rod body is provided with the uniformly distributed sliding grooves, the depth of the sliding grooves is gradually reduced from front to back, the sliding bodies are arranged in the sliding grooves, the telescopic springs are arranged between the front ends of the sliding bodies and the sliding grooves, the inner ends of the sliding bodies are matched with the bottom surfaces of the sliding grooves, the anti-theft screw head comprises an inner cap body, an outer cap body and a connecting mechanism, the rear end of the inner cap body is provided with a circular groove, the inner wall of the circular groove is provided with an annular groove and two clamping grooves which are correspondingly arranged and are communicated with the annular groove, the clamping grooves are in a right-angled triangle shape, the outer cap body is rotatably sleeved on the inner cap body, interior internal coupling mechanism who is connected with the draw-in groove that is equipped with of cap, coupling mechanism is including the cover body, sliding shaft, the spring body and joint subassembly, the cover body and outer cap body fixed connection, sliding shaft slidable establishes at the cover internally, the front end of sliding shaft is equipped with the joint subassembly that both ends are located two draw-in grooves respectively, the cover is equipped with both ends respectively with the spring body of the cover body and joint subassembly fixed connection on the sliding shaft.

Preferably, the joint subassembly includes axis body I, two joint bodies and two springs, the both ends cover of axis body I is equipped with the slidable joint body, all be equipped with the spring with axis body I's tip fixed connection in the joint body.

Preferably, the outer cap body has a regular hexagonal cross-section at the rear end outer peripheral surface.

Preferably, the outer end of the sliding body is arc-shaped.

Preferably, the front ends of the sliding bodies are respectively provided with a shaft body II penetrating through the telescopic spring, and the front ends of the sliding grooves are respectively provided with a waist-shaped connecting groove matched with the shaft body II.

Preferably, the inner wall of the rear end of the inner cap body is provided with a connecting groove, the connecting groove is a right triangle, and the inner wall of the rear end of the outer cap body is provided with a fixing hook matched with the connecting groove.

Preferably, the groove bottom of the sliding groove is provided with a reinforcing protrusion, and the inner end of the sliding body is provided with an accommodating groove matched with the reinforcing protrusion.

The invention has the beneficial effects that: the peripheral surface of the screw rod body is provided with the sliding grooves which are uniformly distributed, the depth of each sliding groove is gradually reduced from front to back, the sliding bodies are arranged in the sliding grooves, and the possibility of thread deformation is greatly reduced by the aid of the stress of the sliding bodies; the outer cap body is rotated clockwise, the outer cap body drives the inner cap body to rotate through the matching of the connecting mechanism and the clamping groove, and the inner cap body drives the screw rod to rotate, so that the screwing rotation of the screw is realized; the outer cap body is rotated anticlockwise, the outer cap body drives the connecting mechanism to rotate, and the clamping body enters the annular groove under the guidance of the bevel edge of the clamping groove because the clamping groove is in a right-angled triangle, so that the connecting mechanism cannot drive the inner cap body to rotate, and the loosening and rotating of the screw cannot be realized; compared with the prior art, can carry out the precision positioning to the connecting piece to guarantee the connection accuracy, and possess the theftproof function.

The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a schematic structural view of a compliant screw according to the present invention;

FIG. 2 is a cross-sectional view of the anti-theft screw head;

fig. 3 is a top view of the connection mechanism.

In the figure: 1-screw mechanism, 2-anti-theft screw head, 11-screw rod body, 12-sliding groove, 13-sliding body, 14-telescopic spring, 15-waist-shaped connecting groove, 16-shaft body II, 17-reinforcing protrusion, 18-accommodating groove, 21-inner cap body, 22-outer cap body, 23-connecting mechanism, 24-circular groove, 25-annular groove, 26-clamping groove, 27-connecting groove, 28-fixing hook, 231-sleeve body, 232-sliding shaft, 233-spring body, 234-clamping component, 2341-shaft body I, 2342-clamping body and 2343-spring.

[ detailed description ] embodiments

Referring to fig. 1, 2 and 3, the screw with good adaptability of the present invention comprises a screw mechanism 1 and an anti-theft screw head 2 integrally formed at the rear end of the screw mechanism 1, wherein the screw mechanism 1 comprises a screw body 11, a plurality of sliding grooves 12, a plurality of sliding bodies 13 and a plurality of telescopic springs 14, the circumferential surface of the screw body 11 is provided with the sliding grooves 12 which are uniformly distributed, the depth of the sliding grooves 12 gradually becomes shallow from front to back, the sliding bodies 13 are arranged in the sliding grooves 12, the telescopic springs 14 are arranged between the front ends of the sliding bodies 13 and the front ends of the sliding grooves 12, the inner ends of the sliding bodies 13 are matched with the bottom surface of the sliding grooves 12, the anti-theft screw head 2 comprises an inner cap body 21, an outer cap body 22 and a connecting mechanism 23, the rear end of the inner cap body 21 is provided with a circular groove 24, the inner wall of the circular groove 24 is provided with an annular groove 25 and two corresponding clamping grooves 26 which are communicated with the annular groove 25, the clamping groove 26 is a right triangle, the outer cap body 22 is rotatably sleeved on the inner cap body 21, a connecting mechanism 23 connected with the clamping groove 26 is arranged in the inner cap body 21, the connecting mechanism 23 comprises a sleeve body 231, a sliding shaft 232, a spring body 233 and a clamping component 234, the sleeve body 231 is fixedly connected with the outer cap body 22, the sliding shaft 232 is slidably arranged in the sleeve body 231, the front end of the sliding shaft 232 is provided with a clamping component 234 with two ends respectively positioned in the two clamping grooves 26, the sliding shaft 232 is sleeved with the spring body 233 with two ends respectively fixedly connected with the sleeve body 231 and the clamping component 234, the clamping component 234 comprises a shaft body I2341, two clamping bodies 2342 and two springs 2343, the two ends of the shaft body I2341 are sleeved with the slidable clamping bodies 2342, the outer peripheral surface of the spring 2343 fixedly connected with the end of the shaft body I2341 is arranged in the clamping body 2342, the cross section of the rear end of the outer cap body 22 is in a regular hexagon shape, the outer end of the sliding body 13 is arc-shaped, the front end of the sliding body 13 is provided with a shaft body II16 passing through the extension spring 14, the front end of the sliding groove 12 is provided with a waist-shaped connecting groove 15 matched with the shaft body II16, the rear end inner wall of the inner cap body 21 is provided with a connecting groove 27, the connecting groove 27 is a right-angled triangle, the rear end inner wall of the outer cap body 22 is provided with a fixed hook 28 matched with the connecting groove 27, the groove bottom of the sliding groove 12 is provided with a reinforcing protrusion 17, and the inner end of the sliding body 13 is provided with a holding groove 18 matched with the reinforcing protrusion 17.

The working process of the invention is as follows:

in the working process of the screw with good adaptability, the sliding body 13 is pushed forwards, so that the outer end of the sliding body 13 does not exceed the peripheral surface of the screw body 11, the screw body 11 can be smoothly inserted into a screw through hole of a fixed part, the sliding body 13 is tightly propped between the sliding groove 12 and the screw through hole by the telescopic spring 14, the outer cap body 22 is rotated clockwise, the outer cap body 22 drives the inner cap body 21 to rotate through the matching of the connecting mechanism 23 and the clamping groove 26, and the inner cap body 21 drives the screw 1 to rotate, so that the screwing rotation of the screw is realized; the outer cap body 22 is rotated anticlockwise, the outer cap body 22 drives the connecting mechanism 23 to rotate, and the clamping groove 26 is a right-angled triangle, so that the clamping body 2342 enters the annular groove 25 under the guidance of the inclined edge of the clamping body, the connecting mechanism 23 cannot drive the inner cap body 21 to rotate, and loosening and unloading rotation of screws cannot be achieved.

The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a screw that adaptability is good which characterized in that: including screw rod mechanism (1) and integrated into one piece theftproof spiral shell head (2) on screw rod mechanism (1) rear end, screw rod mechanism (1) includes the screw rod body (11), a plurality of spout (12), a plurality of slider (13) and a plurality of expanding spring (14), the global spout (12) that are equipped with evenly distributed of screw rod body (11), the degree of depth of spout (12) is by preceding becoming shallow gradually to the back, all be equipped with slider (13) in spout (12), all be equipped with expanding spring (14) between the front end of slider (13) and the front end of spout (12), the inner of slider (13) coincide with the bottom surface of spout (12), theftproof spiral shell head (2) are including the inner cap body (21), the outer cap body (22) and coupling mechanism (23), the rear end of the inner cap body (21) is equipped with circular recess (24), the inner wall of circular recess (24) is equipped with annular groove (25) and two corresponding settings and all communicates with annular groove (25) and communicates Draw-in groove (26), draw-in groove (26) are right triangle, the outer cap body (22) is rotatable to be established on the inner cap body (21) of covering, be equipped with coupling mechanism (23) of being connected with draw-in groove (26) in the inner cap body (21), coupling mechanism (23) are including the cover body (231), sliding shaft (232), play spring body (233) and joint subassembly (234), the cover body (231) and the outer cap body (22) fixed connection, sliding shaft (232) slidable is established in the cover body (231), the front end of sliding shaft (232) is equipped with joint subassembly (234) that both ends are located two draw-in grooves (26) respectively, the cover is equipped with both ends respectively with the spring body (233) of the cover body (231) and joint subassembly (234) fixed connection on sliding shaft (232).

2. A compliant screw as in claim 1 wherein: joint subassembly (234) include axis body I (2341), two joint bodies (2342) and two springs (2343), the both ends cover of axis body I (2341) is equipped with the slidable joint body (2342), all be equipped with in the joint body (2342) with the spring (2343) of the tip fixed connection of axis body I (2341).

3. A compliant screw as in claim 1 wherein: the cross section of the peripheral surface of the rear end of the outer cap body (22) is in a regular hexagon shape.

4. A compliant screw as in claim 1 wherein: the outer end of the sliding body (13) is arc-shaped.

5. A compliant screw as in claim 1 wherein: the front end of the sliding body (13) is provided with a shaft body II (16) penetrating through the telescopic spring (14), and the front end of the sliding chute (12) is provided with a waist-shaped connecting groove (15) matched with the shaft body II (16).

6. A compliant screw as in claim 1 wherein: the inner wall of the rear end of the inner cap body (21) is provided with a connecting groove (27), the connecting groove (27) is a right-angled triangle, and the inner wall of the rear end of the outer cap body (22) is provided with a fixing hook (28) matched with the connecting groove (27).

7. A conformable screw according to any one of claims 1 to 6, wherein: the tank bottom of spout (12) is equipped with strengthens arch (17), the inner of sliding body (13) is equipped with and strengthens arch (17) matched with holding tank (18).