CN112664540B

CN112664540B - Multifunctional screw

Info

Publication number: CN112664540B
Application number: CN202011543807.1A
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: CN112664540A

Abstract

The invention discloses a multifunctional screw, 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 sliding grooves which are uniformly distributed, the depths of the sliding grooves are 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 front ends 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 right-angled triangles, compared with the prior art, a connecting piece can be precisely positioned, so as to ensure the connection precision, and has the anti-theft function and can be disassembled.

Description

Multifunctional screw

[ 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 multifunctional screws.

[ 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 in the 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 therefore, it is necessary to precisely position the connection member to ensure the connection precision.

In addition, the existing screw generally comprises a screw head and a screw rod, and the screw head is simple in structure, relatively single in function and low in adaptability.

[ summary of the invention ]

The invention aims to solve the problems in the prior art and provides a multifunctional screw which can be used for precisely positioning a connecting piece to ensure the connection precision, has an anti-theft function and is detachable.

In order to achieve the purpose, the invention provides a multifunctional screw, 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 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 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, the inner cap body is internally provided with a connecting mechanism connected with the clamping groove, the connecting mechanism comprises a sleeve body, a sliding shaft, a spring body, a clamping component, a telescopic torsion spring, a fixed shaft, a gear and a rack, the sleeve body is fixedly connected with the outer cap body, the sliding shaft is slidably arranged in the sleeve body, the front end of the sliding shaft is provided with a clamping component with two ends respectively positioned in the two clamping grooves, the sliding shaft is sleeved with a spring body, two ends of the spring body are respectively fixedly connected with the sleeve body and the clamping component, the upper wall body of the sleeve body is penetrated with a fixed shaft connected with a thread, the upper end of the fixed shaft is provided with a gear, the fixed shaft is sleeved with a telescopic torsion spring, two ends of the telescopic torsion spring are respectively fixedly connected with the gear and the sleeve body, the sliding shaft is provided with a positioning hole for inserting the fixing shaft, and the rear end of the outer cap body is provided with a through hole for the rack to pass through and be meshed with the gear.

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 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 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.

Preferably, the channel of the sleeve body is a T-shaped hole with a small front part and a large rear part, and the rear end of the sliding shaft is provided with an annular bulge matched with the large-diameter section of the T-shaped hole.

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; when the pine unloads, insert the rack from the through-hole, the rack is connected and drive gear revolve rather than the meshing when the gear, the gear drives fixed axle pivoted while downstream and inserts the locating hole, the joint body can not move to annular groove under the direction of right angled triangle's hypotenuse like this, thereby the outer cap body passes through coupling mechanism and the cooperation drive inner cap body rotation of draw-in groove, realize the pine and unload, compare with prior art, can carry out the precision positioning to the connecting piece, in order to guarantee the connection precision, and have the theftproof function and can dismantle.

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 multifunctional screw according to the present invention;

FIG. 2 is a schematic structural diagram of an anti-theft screw head;

fig. 3 is a partial top view of the attachment 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-positioning hole, 28-through hole, 231-sleeve body, 232-sliding shaft, 233-spring body, 234-clamping component, 235-telescopic torsion spring, 236-fixing shaft, 237-gear, 238-rack, 239-annular protrusion, 2341-shaft body I, 2342-clamping body, 2343-spring.

[ detailed description ] embodiments

Referring to fig. 1, 2 and 3, the invention relates to a multifunctional screw, comprising 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 sliding grooves 12 are uniformly distributed on the circumferential surface of the screw body 11, 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, a circular groove 24 is arranged at the rear end of the inner cap body 21, an annular groove 25 and two corresponding clamping grooves 26 are arranged on the inner wall of the circular groove 24 and 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, the inner cap body 21 is internally provided with a connecting mechanism 23 connected with the clamping groove 26, the connecting mechanism 23 comprises a sleeve body 231, a sliding shaft 232, a spring body 233, a clamping component 234, a telescopic torsion spring 235, a fixing shaft 236, a gear 237 and a rack 238, 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 the clamping component 234 of which two ends are respectively arranged in the two clamping grooves 26, the sliding shaft 232 is sleeved with the spring body 233 of which two ends are respectively fixedly connected with the sleeve body 231 and the clamping component 234, the upper wall body of the sleeve body 231 is penetrated with the fixing shaft 236 in threaded connection, the gear 237 is arranged at the upper end of the fixing shaft 236, the sleeve body 235 is sleeved with the telescopic torsion spring 236, two ends of the telescopic torsion spring 235 are respectively fixedly connected with the gear 237 and the gear 231, the sliding shaft 232 is provided with a positioning hole 27 for inserting the fixing shaft 236, the rear end of the outer cap body 22 is provided with a through hole 28 for the rack 238 to pass through and be engaged with the gear 237, the clamping assembly 234 includes a shaft body I2341, two clamping bodies 2342 and two springs 2343, two ends of the shaft body I2341 are sleeved with slidable clamping bodies 2342, springs 2343 fixedly connected with the end parts of the shaft body I2341 are arranged in the clamping bodies 2342, 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 ends of the sliding grooves 12 are respectively provided with a kidney-shaped connecting groove 15 matched with the shaft body II16, a reinforcing bulge 17 is arranged at the bottom of the sliding groove 12, an accommodating groove 18 matched with the reinforcing bulge 17 is arranged at the inner end of the sliding body 13, the channel of the sleeve body 231 is a T-shaped hole with a small front part and a large rear part, and the rear end of the sliding shaft 232 is provided with an annular bulge 239 matched with the large-diameter section of the T-shaped hole.

The working process of the invention is as follows:

in the working process of the multifunctional screw, 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 rod body 11, the screw rod body 11 can be smoothly inserted into a screw rod through hole of a fixed part, the sliding body 13 is tightly propped between the sliding groove 12 and the screw rod 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, the inner cap body 21 drives the screw rod 1 to rotate, and 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.

When the outer cap body 22 is rotated anticlockwise, the inner cap body 21 is driven to rotate through the matching of the connecting mechanism 23 and the clamping groove 26, and accordingly the loosening is 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. A multifunctional screw is 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 spiral rod body (11), a plurality of spout (12), a plurality of sliding body (13) and a plurality of expanding spring (14), the global spout (12) that are equipped with evenly distributed of the spiral rod body (11), the degree of depth of spout (12) is become shallow gradually by preceding to back, all be equipped with sliding body (13) in spout (12), all be equipped with expanding spring (14) between the front end of sliding body (13) and the front end of spout (12), the inner of sliding body (13) coincide with the bottom surface of spout (12), theftproof spiral shell head (2) are including the inner cap body (21), 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 communicate The clamping groove (26) is a right-angled 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), a clamping component (234), a telescopic torsion spring (235), a fixed shaft (236), a gear (237) and a rack (238), the sleeve body (231) is fixedly connected with the outer cap body (22), the sliding shaft (232) can be slidably arranged in the sleeve body (231), the clamping component (234) is arranged at the front end of the sliding shaft (232), two ends of the clamping component (234) are respectively located in the two clamping grooves (26), the spring body (233) is sleeved on the sliding shaft (232) and fixedly connected with the sleeve body (231) and the clamping component (234) at two ends, the fixed shaft (231) is provided with a threaded connection, and the fixed shaft (236) is arranged on the fixed shaft in a penetrating manner, the upper end of the fixed shaft (236) is provided with a gear (237), the fixed shaft (236) is sleeved with a telescopic torsion spring (235), two ends of the telescopic torsion spring (235) are fixedly connected with the gear (237) and the sleeve body (231) respectively, the sliding shaft (232) is provided with a positioning hole (27) for inserting the fixed shaft (236), and the rear end of the outer cap body (22) is provided with a through hole (28) for the rack (238) to penetrate through and be connected with the gear (237) in a meshed mode.

2. The multifunctional screw of 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. The multifunctional screw of claim 1, wherein: the outer end of the sliding body (13) is arc-shaped.

4. The multifunctional screw of 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).

5. The multifunctional screw of claim 1, 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).

6. A multifunctional screw as claimed in any one of claims 1 to 5, wherein: the channel of the sleeve body (231) is a T-shaped hole with a small front part and a large rear part, and the rear end of the sliding shaft (232) is provided with an annular bulge (239) matched with the large-diameter section of the T-shaped hole.