CN214533890U

CN214533890U - High-tightness nut for connecting pipe fittings

Info

Publication number: CN214533890U
Application number: CN202022764017.8U
Authority: CN
Inventors: 孙成献; 迟理明
Original assignee: Yantai Longhui Metal Products Co ltd
Current assignee: Yantai Longhui Metal Products Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-10-29
Anticipated expiration: 2030-11-25

Abstract

The application relates to a high-tightness nut for pipe connection, which comprises a nut body, wherein one end of the nut body is provided with a threaded hole, one end of the nut body, far away from the threaded hole, is provided with a jack coaxially arranged with the threaded hole, the jack is communicated with the threaded hole, one end of the nut body, corresponding to the threaded hole, is fixedly connected with a lug, the middle part of the lug is provided with a through hole communicated with the threaded hole, two circular grooves are formed in the lug, a screw rod is connected in the two circular grooves in a sliding manner along the length direction of the lug, a first bevel gear is rotationally connected in the lug in a rotating manner and is rotationally connected with the position corresponding to the screw rod, a threaded through hole capable of being in threaded connection with the screw rod is formed in the axial position of the first bevel gear, a second bevel gear capable of being meshed with the first bevel gear is further rotationally connected in the lug, one end of the second bevel gear extends out of the lug, this application has and avoids the nut not hard up, carries out reinforced (rfd) effect to the connection of pipe fitting connecting piece.

Description

High-tightness nut for connecting pipe fittings

Technical Field

The application relates to the field of pipe fitting connecting pieces, in particular to a nut for connecting high-tightness pipe fittings.

Background

In life, the pipe fittings are widely used for conveying gas and liquid, and when long-distance gas and liquid transportation is carried out, a plurality of pipe fittings need to be spliced, turned and the like.

The pipe fitting need use pipe fitting connecting piece to connect usually when concatenation or turning to, during the use, often has a bulge loop at the one end rigid coupling of pipe fitting, inserts the pipe fitting and locates the nut and with the bulge loop joint in the nut, reuse the nut and have the pipe fitting connecting piece of external screw thread to carry out threaded connection.

In view of the above-mentioned related technologies, the inventor believes that if the pipe generates vibration during use, the nut is easy to loosen after long-term operation, which causes the pipe connector to fall off.

SUMMERY OF THE UTILITY MODEL

In order to avoid the nut not hard up, consolidate the connection of pipe fitting connecting piece, this application provides a high fastening nut for pipe fitting connection.

The application provides a nut for high fixity pipe connection adopts following technical scheme:

the nut comprises a nut body, wherein one end of the nut body is provided with a threaded hole, one end, far away from the threaded hole, of the nut body is provided with a jack which is coaxial with the threaded hole, the jack is communicated with the threaded hole, a protruding block is fixedly connected to one end, corresponding to the threaded hole, of the nut body, the middle of the protruding block is provided with a through hole communicated with the threaded hole, two circular grooves are formed in the protruding block, a screw rod is connected to the two circular grooves in a sliding mode along the length direction of the protruding block, a first bevel gear is rotatably connected to the position, corresponding to the screw rod, in the protruding block, of the first bevel gear, a threaded through hole which can be in threaded connection with the screw rod is formed in the axial position of the first bevel gear, a second bevel gear which can be meshed with the first bevel gear is further rotatably connected to the protruding block, and one end of the second bevel gear extends out of the protruding block.

Through adopting the above technical scheme, when connecting the pipe fitting, earlier have the pipe fitting joint of bulge loop in the nut, be close to the external connecting piece that has the external screw thread with the nut again, the connecting piece passes the through-hole and rotates the nut, make nut and pipe fitting connecting piece threaded connection, screw up the two back, rotate bevel gear two, bevel gear two rotates and can drive two bevel gear one and rotate, and then can drive two screws and rotate to the through-hole in, make two screws withstand the pipe fitting connecting piece in the through-hole, the influence of vibrations to nut and pipe fitting connecting piece has been reduced, consolidate the connection of pipe fitting.

Optionally, a rubber ring is fixedly connected to the inner bottom surface of the threaded hole.

Through adopting above-mentioned technical scheme, the rubber ring can make the nut difficult not hard up after nut and pipe fitting connecting piece tighten up, further reinforces the connection of the two, and can prevent that pipe fitting connecting piece and nut junction from leaking.

Optionally, the outer surface of the nut body is provided with a chrome-plated coating.

Through adopting above-mentioned technical scheme, the rust of nut can be reduced to the chrome-plated coating, promotes the live time of nut.

Optionally, one end of the nut body is fixedly connected with a connecting pipe made of a flexible material, and the connecting pipe and the nut body are arranged in a coaxial manner.

Through adopting above-mentioned technical scheme, the connecting pipe can be protected the hookup location of tubular product and nut.

Optionally, one end of the jack close to the threaded hole is provided with a holding groove.

Through adopting above-mentioned technical scheme, in the pipe fitting that has the bulge loop when the external world inserted and locates the jack, the bulge loop can hold in the holding tank, makes pipe fitting and nut body zonulae occludens.

Optionally, one end of the second bevel gear extends to the outer side of the convex block and is fixedly connected with a knob.

Through adopting above-mentioned technical scheme, rotate the knob and can be convenient for rotate bevel gear two, the workman's operation of being convenient for.

Optionally, a sealing ring is fixedly connected to the inner bottom surface of the accommodating groove.

Through adopting above-mentioned technical scheme, the sealing ring can prevent that liquid or gas etc. from leaking from the jack position of nut.

Optionally, a rubber pad is fixedly connected to the boss at a circumferential position corresponding to the through hole.

Through adopting above-mentioned technical scheme, further prevent that liquid or gas from leaking from the gap.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the pipe fittings are connected, the pipe fitting with the convex ring is clamped in the nut, the nut is close to an external connecting piece with external threads, the connecting piece penetrates through the through hole and rotates the nut, the nut is in threaded connection with the pipe fitting connecting piece, after the nut and the pipe fitting connecting piece are screwed tightly, the second bevel gear is rotated, the second bevel gear can drive the first bevel gear to rotate, and then the two screw rods can be driven to rotate into the through hole, so that the pipe fitting connecting piece in the through hole is propped by the two screw rods, the influence of vibration on the nut and the pipe fitting connecting piece is reduced, and the connection of the pipe fittings is reinforced;

2. the rubber ring can ensure that the nut is not easy to loosen after the nut and the pipe fitting connecting piece are screwed up, further reinforce the connection between the nut and prevent the leakage at the connection part of the pipe fitting connecting piece and the nut;

3. when the external pipe fitting with the convex ring is inserted into the jack, the convex ring can be accommodated in the accommodating groove, so that the pipe fitting is tightly connected with the nut body.

Drawings

Fig. 1 is a schematic structural diagram of a nut for connecting high-tightness pipes in an embodiment of the present application.

Fig. 2 is a schematic cross-sectional view of a nut body representing a socket in an embodiment of the present application.

Fig. 3 is a schematic cross-sectional view showing a first bevel gear and a second bevel gear in the embodiment of the present application.

Description of reference numerals: 1. a nut body; 11. a threaded hole; 111. a rubber ring; 12. a jack; 121. accommodating grooves; 122. a seal ring; 13. a connecting pipe; 2. a bump; 21. a through hole; 211. a rubber pad; 22. a circular groove; 221. a slider; 23. a first bevel gear; 24. a screw; 241. a chute; 25. a second bevel gear; 251. a knob.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses high fastening nut for pipe connection.

Referring to fig. 1 and 2, the nut for connecting high-tightness pipe fittings comprises a nut body 1 with a chrome-plated coating coated on the outer surface, a threaded hole 11 is formed in one end of the nut body 1, the threaded hole 11 and the nut body 1 are coaxially arranged, a jack 12 is formed in one end, far away from the threaded hole 11, of the nut body 1, the axis of the jack 12 is in the same straight line with the axis of the threaded hole 11, the jack 12 is communicated with the threaded hole 11, an accommodating groove 121 is formed in one end, close to the threaded hole 11, of the jack 12, the axis of the accommodating groove 121 is in the same straight line with the axis of the jack 12, the external pipe fitting with a convex ring can be inserted into the jack 12, the convex ring can be accommodated in the accommodating groove 121, after installation, the external pipe fitting connecting piece with external threads is in the threaded hole 11, and the pipe fitting connecting piece are connected through the nut body 1.

Referring to fig. 2, a sealing ring 122 is fixedly connected to the inner bottom surface of the receiving groove 121, an axis of the sealing ring 122 is in the same straight line with an axis of the threaded hole 11, a rubber ring 111 is fixedly connected to the inner bottom surface of the threaded hole 11, an axis of the rubber ring 111 is in the same straight line with an axis of the threaded hole 11, the sealing ring 122 can reduce gap leakage at a pipe fitting end, and the rubber ring 111 can reduce leakage at a connection position of a pipe fitting connection member and a nut.

Referring to fig. 1 and 3, a convex block 2 is fixedly connected to one end of a nut body 1 corresponding to a threaded hole 11 far away from a jack 12, the length direction of the convex block 2 is perpendicular to the axial direction of the threaded hole 11, a through hole 21 is formed in the middle of the surface of the convex block 2, the through hole 21 is communicated with the threaded hole 11, the through hole 21 and the threaded hole 11 are coaxially arranged, a rubber pad 211 is fixedly connected to one side of the convex block 2 far away from the nut body 1 corresponding to the circumference of the through hole 21, two circular grooves 22 are formed in the convex block 2, the two circular grooves 22 are arranged along the length direction of the convex block 2, the axial direction of the two circular grooves 22 is the same as the length direction of the convex block 2, one end of the two circular grooves 22 close to each other is communicated with the through hole 21, one end of the two circular grooves 22 far away from each other extends to both ends of the convex block 2, a bevel gear one 23 is rotatably connected to each circular groove 22 in the convex block 2, the bevel gear one 23 is coaxially arranged with each circular groove 22, and a threaded through hole is formed at the axial position of each bevel gear one, all insert in two circular slots 22 and be equipped with screw rod 24, screw rod 24's axis direction is the same with circular slot 22's axis direction, screw rod 24 threaded connection is in screw hole 11, and two circular slots 22 keep away from the equal rigid coupling of inner peripheral surface of one end each other and have two sliders 221, two sliders 221 symmetry set up, spout 241 has been seted up to the position that the peripheral face of screw rod 24 corresponds slider 221, slider 221 slides and connects in spout 241, a bevel gear 23 rotates and can drive two screw rods 24 along the length direction motion of lug 2, two screw rods 24 can tend to the through-hole 21 and remove, withstand external pipe fitting connecting piece.

Referring to fig. 3, one side of the convex block 2 corresponding to the first two bevel gears 23 is rotatably connected with a second two bevel gear 25, the axial direction of the second bevel gear 25 is perpendicular to the axial direction of the first bevel gear 23, the first bevel gear 23 is meshed with the second bevel gear 25, one end of the second bevel gear 25 extends to one side of the convex block 2 and is fixedly connected with a knob 251, the knob 251 is rotated to drive the second bevel gear 25 to rotate, the second bevel gear 25 can drive the first bevel gear 23 to rotate, and the first bevel gear 23 can drive the screw 24 to move along the length direction of the convex block 2.

Referring to fig. 1, one end of the nut body 1, which is far away from the threaded hole 11, is fixedly connected with a connecting pipe 13 made of a flexible material and coaxially arranged with the nut body 1, the connecting pipe 13 is communicated with the jack 12, and the connecting pipe 13 can protect the connecting position of the pipe fitting and the nut.

The implementation principle of the nut for connecting the high-tightness pipe fitting is as follows: during the use, insert the pipe fitting that has the bulge loop with external and establish into nut body 1 in, and arrange the bulge loop in holding tank 121, the one end of pipe fitting is worn to establish nut body 1 and is kept away from the one end of screw hole 11, with external screwed pipe fitting connecting piece threaded connection in screw hole 11 again, be connected the back with pipe fitting and pipe fitting connecting piece, rotate two rocking handles, can drive two 25 rotations of bevel gear, drive one 23 rotations of bevel gear, and then drive the internal motion of 24 channels through-hole 21 of two screws, withhold the pipe fitting connecting piece, the influence of being connected to pipe fitting connecting piece and nut body 1 when reducing the pipe fitting vibrations.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a high leakproofness nut for pipe connection, includes nut body (1), threaded hole (11) are seted up to nut body (1) one end, nut body (1) keeps away from the one end of threaded hole (11) and sets up jack (12) with threaded hole (11) coaxial line setting, jack (12) with threaded hole (11) intercommunication, its characterized in that: the nut body (1) is fixedly connected with a convex block (2) corresponding to one end of the threaded hole (11), the middle of the convex block (2) is provided with a through hole (21) communicated with the threaded hole (11), two circular grooves (22) are formed in the convex block (2), a screw rod (24) is connected to the two circular grooves (22) in a sliding mode along the length direction of the convex block (2), a bevel gear I (23) is connected to the position, corresponding to the screw rod (24), in the convex block (2) in a rotating mode, the axial line position of the bevel gear I (23) is provided with a threaded through hole (21) capable of being in threaded connection with the screw rod (24), a bevel gear II (25) capable of being meshed with the bevel gear I (23) is further connected to the convex block (2) in a rotating mode, and one end of the bevel gear II (25) extends out of the convex block (2).

2. The nut for connecting high-tightness pipe fittings according to claim 1, wherein: and a rubber ring (111) is fixedly connected to the inner bottom surface of the threaded hole (11).

3. The nut for connecting high-tightness pipe fittings according to claim 1, wherein: the outer surface of the nut body (1) is provided with a chromium plating coating.

4. The nut for connecting high-tightness pipe fittings according to claim 1, wherein: one end of the nut body (1) is fixedly connected with a connecting pipe (13) which is communicated with the jack (12), and the connecting pipe (13) and the nut body (1) are coaxially arranged.

5. The nut for connecting high-tightness pipe fittings according to claim 1, wherein: one end of the jack (12) close to the threaded hole (11) is provided with a containing groove (121).

6. The nut for connecting high-tightness pipe fittings according to claim 1, wherein: one end of the second bevel gear (25) extends to the outer side of the convex block (2) and is fixedly connected with a knob (251).

7. The nut for connecting high-tightness pipe fittings according to claim 5, wherein: and a sealing ring (122) is fixedly connected to the inner bottom surface of the accommodating groove (121).

8. The nut for connecting high-tightness pipe fittings according to claim 1, wherein: rubber pads (211) are fixedly connected to the circumferential positions of the convex blocks (2) corresponding to the through holes (21).