CN210859509U

CN210859509U - Split nut

Info

Publication number: CN210859509U
Application number: CN201921468523.3U
Authority: CN
Inventors: 谭昌春; 丛长林; 陈兴志
Original assignee: Beijing Haitaisi Engineering Equipment Co ltd
Current assignee: Beijing Haitaisi Engineering Equipment Co ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-06-26
Anticipated expiration: 2029-09-04

Abstract

The utility model relates to a split nut, which comprises a left half nut and a right half nut, wherein the left half nut and the right half nut are provided with mutually matched threads, and also comprises a guide screw, a non-return screw, a first shaft sleeve, a second shaft sleeve, a first reset spring, a second reset spring, a non-return pin and a wave spring opposite to the top; the check screw is in threaded connection with the right half nut, the second shaft sleeve is arranged on the check screw in a sleeved mode, the second reset spring is arranged on the second shaft sleeve in a sleeved mode, a check ring groove is formed in the middle of the check screw, the check pin is installed in the pin groove, a screw through hole is formed in the check pin, a check ring table is arranged in the screw through hole, the opposite vertex wave spring is installed at the bottom of the pin groove and abuts against the lower end of the check pin, and the check ring table is located in the check ring groove. When in use, the screw rod can be simply placed on the screw rod needing to be fastened, and the screw rod has the advantages of convenience in installation, reliability in connection and capability of being installed or detached quickly.

Description

Split nut

Technical Field

The utility model relates to a mechanical assembly field, concretely relates to split type nut.

Background

The nut is screwed together with the screw or the screw to play a fastening role, the nut is used as a common part in mechanical connection, the conventional nut needs to be screwed into the screw manually, the length of the screw of large-scale equipment needing to be fixed is long, and the nut is time-consuming and labor-consuming in screwing. With the continuous development of the ocean, a plurality of devices applied to the ocean also need to be fixed by screws, and when an installer works under the ocean, the submarine environment has many unsafe factors compared with the land environment, so that the longer the installer works on the seabed, the greater the safety risk exists.

Therefore, a nut which is convenient to mount, reliable to connect and capable of being mounted or dismounted rapidly is needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a nut that the installation is convenient, connect reliably, can install fast or dismantle.

In order to solve the problems in the prior art, the utility model provides a split nut, including left half nut and right half nut, the right side middle part of left half nut sets up left half slot, the left side middle part of right half nut sets up right half slot, left half slot and right half slot are equipped with screw thread of mutually supporting, upper screw hole and upper assembly hole are seted up to the first half of left half nut from right to left, lower screw hole and lower assembly hole are seted up to the lower half of left half nut from right to left, upper locating hole, upper clearing hole and upper limiting hole are seted up to the first half of right half nut from left to right in proper order, lower locating hole, lower clearing hole and lower limiting hole are seted up to the lower half of right half nut from left to right in proper order, the pin groove has still been seted up to the lower half of right half nut, the pin groove sets up in the junction of lower clearing hole and lower limiting vertically; the guide screw sequentially penetrates through the upper limiting hole, the upper through hole, the upper positioning hole and the upper assembling hole from right to left and is connected in the upper threaded hole through threads at the end part, the first shaft sleeve is sleeved on the guide screw, the right end of the first shaft sleeve is clamped on the upper positioning hole, the first reset spring is sleeved on the first shaft sleeve, one end of the first reset spring is abutted on a boss of the first shaft sleeve, and the other end of the first reset spring is abutted on a limiting table formed by the upper assembling hole and the upper threaded hole; the check screw rod sequentially penetrates through the lower limiting hole, the screw rod through hole, the lower positioning hole and the lower assembling hole from right to left and is connected in the lower threaded hole through threads at the end part, the second shaft sleeve is sleeved on the check screw rod, the right end of the second shaft sleeve is clamped on the lower positioning hole, the second reset spring is sleeved on the second shaft sleeve, one end of the second reset spring is propped against a boss of the second shaft sleeve, the other end of the second reset spring is propped against a limiting table formed by the lower assembling hole and the lower threaded hole, and a check ring groove is formed in the middle part of the check screw rod; and the opposite-top wave spring is arranged at the bottom of the pin groove and is propped against the lower end of the check pin, so that the check ring table is positioned in the check ring groove.

Further, the utility model relates to a split type nut, wherein, left side half nut and right half nut all become the half-ring shape, are ring shape after left side half nut and right half nut are closed.

Further, the utility model relates to a split type nut, wherein, the boss of first axle sleeve is spherical boss, it is the sphere to go up the locating hole, and the spherical boss cooperation of first axle sleeve right-hand member is on the sphere of last locating hole.

Further, the utility model relates to a split type nut, wherein, the boss of second shaft sleeve is spherical boss, the locating hole is the sphere down, and the spherical boss cooperation of second shaft sleeve right-hand member is on the sphere of locating hole down.

Further, the utility model relates to a split type nut, wherein, the direction screw rod head is equipped with first circular boss, first circular boss and last spacing hole clearance fit, the external diameter of first circular boss is greater than the aperture of last clearing hole, and direction screw rod and last clearing hole clearance fit, direction screw rod and first axle sleeve sliding fit.

Further, the utility model relates to a split type nut, wherein, non return screw rod head is equipped with the circular boss of second, the circular boss of second and spacing hole clearance fit down, the external diameter of the circular boss of second is greater than the aperture of clearing hole down, non return screw rod and clearing hole clearance fit down, non return screw rod and second bushing sliding fit.

Further, the utility model relates to a split type nut, wherein, non return ring platform right-hand member is the toroidal, and non return ring platform left end is the crescent face, the toroidal face is spacing hole downwards, crescent face is the clearing hole downwards, circle and crescent face excircle are inscribed in non return ring bench end in the crescent face, and circle and the same axle center in the toroidal face in the crescent face, crescent face excircle and toroidal face excircle are inscribed in non return ring platform lower extreme.

Further, the utility model relates to a split type nut, wherein, half nut left side middle part on a left side is equipped with left arc wall, and half nut right side middle part on a right side is equipped with right arc wall.

Further, the utility model relates to a split type nut, wherein, half nut left side in a left side is equipped with two left side and dials the hole, and two left sides are dialled the hole and are set up respectively in left arc wall upper end and lower extreme, half nut right side in a right side is equipped with two right sides and dials the hole, and one of them right side is dialled the hole and is set up between right arc wall and last spacing hole, and another right side is dialled the hole and is set up between right arc wall and lower spacing hole.

Further, the utility model relates to a split nut, wherein, the first circular boss end face is provided with a hexagon socket; and the end surface of the second round boss is provided with an inner hexagonal hole.

Compared with the prior art, the utility model, split type nut has following advantage: the installation is convenient, connect reliably, can install or dismantle fast, only needs to press down the check pin when using, and left half nut will be bounced off under reset spring's effect, then put into on the screw rod that needs the fastening, tightens up left half nut and right half nut at last, stops the check pin under the effect to the crest wave spring at the process of tightening up, and the check ring platform is in the check ring groove, realizes twisting the nut on the screw rod fast.

The split nut of the present invention will be described in detail with reference to the embodiments shown in the drawings.

Drawings

Fig. 1 is a top view of a split nut of the present invention;

FIG. 2 is a view taken along line A-A of FIG. 1;

fig. 3 is a side view of a split nut of the present invention;

FIG. 4 is a view taken along line B-B of FIG. 3;

fig. 5 is a cross-sectional view of a left half nut and a right half nut of the split nut of the present invention;

fig. 6 is a schematic view of the split nut stop-return screw structure of the present invention;

fig. 7 is a schematic view of a structure of a connecting screw in a split nut of the present invention;

fig. 8 is a side view of a backstop pin in a split nut of the present invention;

FIG. 9 is another side view of a backstop pin in a split nut of the present invention;

fig. 10 is a view from direction C-C in fig. 9.

Wherein: 11, a left half nut; 111, an upper threaded hole; 112, an upper assembly hole; 113, a lower threaded hole; 114, lower assembly holes; 115 left arc-shaped groove; 116 left poking hole; 12, a right half nut; 121, arranging a positioning hole; 122, upper through holes; 123, an upper limiting hole; 124, lower positioning holes; 125, lower through hole; 126, a lower limiting hole; 127, pin slots; 128, right arc-shaped slot; 129, right poking hole; 13, a lead screw; 14, a non-return screw; 131, a first sleeve; 141, a second bushing; 132, a first return spring; 142, a second return spring; 143, a check pin; 15, opposite vertex wave spring; 144, a check ring groove; 145, screw through hole; 146, a check ring land; 1461 annular surface; 1462 crescent shaped surface. .

Detailed Description

As shown in fig. 1 to 7, the split nut of the present invention comprises a left half nut 11 and a right half nut 12, wherein a left half groove is formed in the middle of the right side of the left half nut 11, a right half groove is formed in the middle of the left side of the right half nut 12, the left half groove and the right half groove are provided with mutually matched threads, an upper threaded hole 111 and an upper assembly hole 112 are formed in the upper half of the left half nut 11 from right to left, a lower threaded hole 113 and a lower assembly hole 114 are formed in the lower half of the left half nut 11 from right to left, an upper positioning hole 121, an upper through hole 122 and an upper positioning hole 123 are sequentially formed in the upper half of the right half nut 12 from left to right, and a lower positioning hole 124 is sequentially formed in the lower half of the right half nut 12 from left to right, the lower part of the right half nut 12 is also provided with a pin groove 127, and the pin groove 127 is vertically arranged at the connection part of the lower through hole 125 and the lower limit 126; the anti-collision device further comprises a guide screw 13, a non-return screw 14, a first shaft sleeve 131, a second shaft sleeve 141, a first return spring 132, a second return spring 142, a non-return pin 143 and a counter wave spring 15, wherein the non-return pin 143 is installed in the pin groove 127, the non-return pin 143 is provided with a screw through hole 145, a non-return ring table 146 is arranged in the screw through hole 145, the guide screw 13 sequentially penetrates through the upper limiting hole 123, the upper through hole 122, the upper positioning hole 121 and the upper assembling hole 112 from right to left and is connected in the upper threaded hole 111 through threads at the end part, the first shaft sleeve 131 is sleeved on the guide screw 13, the right end of the first shaft sleeve 131 is clamped on the upper positioning hole 121, the first return spring 132 is sleeved on the first shaft sleeve 131, one end of the first return spring 132 abuts on a boss of the first shaft sleeve 131, and the other end of the first return spring 132 abuts on; the check screw 14 sequentially passes through the lower limiting hole 126, the screw through hole 145, the lower passing hole 125, the lower locating hole 124 and the lower assembling hole 114 from right to left and is connected in the lower threaded hole 113 through threads at the end part, the second shaft sleeve 141 is sleeved on the check screw 14, the right end of the second shaft sleeve 141 is clamped on the lower locating hole 124, the second return spring 142 is sleeved on the second shaft sleeve 141, one end of the second return spring 142 is propped against a boss of the second shaft sleeve 141, the other end of the second return spring 142 is propped against a limiting table formed by the lower assembling hole 114 and the lower threaded hole 113, and a check ring groove 144 is arranged in the middle part of the check screw 14; wave spring 15 is mounted in the bottom of pin slot 127 and against the lower end of check pin 143 with check ring land 146 in check ring groove 144. In actual use, the check pin 143 is pressed downwards to contract the wave spring 15, the check pin 143 moves downwards, the blocking effect of the check ring groove 144 on the check ring table 146 disappears, the left half nut 11 is bounced off under the effects of the first return spring 132 and the second return spring 142, then the whole nut is placed at the bottom of the screw to be fastened, finally the left half nut 11 and the right half nut 12 are tightened manually, when the check ring groove 144 on the check screw 14 passes through the check ring table 146 on the check pin 143, the check ring table 146 is clamped in the check ring groove 144 under the effect of the wave spring 15, the left half nut 11 and the right half nut 12 are locked, and therefore the process of slowly screwing the screw is omitted, the working time is saved, and the working efficiency is improved.

As specific implementation mode, in the utility model left half nut 11 and right half nut 12 all become half-ring shape, are ring shape after left half nut 11 and right half nut 12 are closed, and the nut bears evenly, can not produce permanent destruction. In order to make the first shaft sleeve 131 and the upper positioning hole 121 fit tightly and stably, the boss of the first shaft sleeve 131 is specifically set to be a spherical boss, the upper positioning hole 121 is also a spherical surface, and the spherical boss at the right end of the first shaft sleeve 131 fits on the spherical surface of the upper positioning hole 121. In order to make the second shaft sleeve 141 and the lower positioning hole 124 fit tightly and stably, the boss of the second shaft sleeve 141 is a spherical boss, the lower positioning hole 124 is a spherical surface, and the spherical boss at the right end of the second shaft sleeve 141 fits on the spherical surface of the lower positioning hole 124.

As an optimized solution, the present embodiment is to make the left half nut 11 more smooth when it is flicked. The head of the guide screw 13 is provided with a first circular boss 133, the first circular boss 133 is in clearance fit with the upper limiting hole 123, the outer diameter of the first circular boss 133 is larger than the aperture of the upper through hole 122, the guide screw 13 is in clearance fit with the upper through hole 122, and the guide screw 13 is in sliding fit with the first shaft sleeve 131; the head of the non-return screw 14 is provided with a second circular boss 147, the second circular boss 147 is in clearance fit with the lower limiting hole 126, the outer diameter of the second circular boss 147 is larger than the aperture of the lower passing hole 125, the non-return screw 14 is in clearance fit with the lower passing hole 125, and the non-return screw 14 is in sliding fit with the second sleeve 141.

As an optimization scheme, in order to more conveniently spring open the left half nut 11, as shown in fig. 8 to 10, specifically let the right end of the check ring table 146 be an annular surface 1461, the left end of the check ring table 146 be a crescent surface 1462, the first through hole 148 formed by the annular surface 1461 faces the lower limiting hole 126, the second through hole 149 formed by the crescent surface 1462 faces the lower through hole 125, the inner circle of the crescent surface 1462 and the outer circle of the crescent surface 1462 are inscribed in the upper end of the check ring table 146, the inner circle of the crescent surface 1462 and the inner circle of the annular surface 1461 have the same axis, and the outer circle of the crescent surface and the outer circle of the annular surface 1461 are inscribed in the lower end of the check ring table 146. When the second through hole 149 contacts the check screw 14 during the process of pressing the check pin 143 again, the check pin 143 cannot be pressed downwards any more, and the check ring table 146 is separated from the check ring groove 144, so that the left half nut 11 is bounced off under the action of the first return spring 132 and the second return spring 142, and the check pin 143 is prevented from being pressed excessively, and the nut cannot be bounced off.

As an optimized scheme, in the embodiment, the left middle part of the left half nut 11 is provided with a left arc-shaped groove 115, and the right middle part of the right half nut 12 is provided with a right arc-shaped groove 128, so that the position of the nut on the screw rod can be manually adjusted after the nut is sleeved; two left shifting holes 116 are formed in the left side of the left half nut 11, the two left shifting holes 116 are respectively formed in the upper end and the lower end of the left arc-shaped groove 115, two right shifting holes 129 are formed in the right side of the right half nut 12, one of the right shifting holes 129 is formed between the right arc-shaped groove 128 and the upper limiting hole 123, the other right shifting hole 129 is formed between the right arc-shaped groove 128 and the lower limiting hole 126, and when the nut cannot be fastened completely, a shifting handle can be used for inserting the shifting hole to fasten the nut. In order to facilitate the installation of the guide screw 13 and the non-return screw 14, a hexagon socket is arranged on the end surface of the first circular boss 133; and a hexagon socket is arranged on the end surface of the second circular boss 147.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

The above embodiments are only descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the claimed invention, and various modifications made by those skilled in the art according to the technical solutions of the present invention should fall within the scope of the present invention as defined by the claims.

Claims

1. A split nut is characterized by comprising a left half nut (11) and a right half nut (12), wherein a left semicircular groove is formed in the middle of the right side of the left half nut (11), a right semicircular groove is formed in the middle of the left side of the right half nut (12), threads matched with each other are arranged in the left semicircular groove and the right semicircular groove, an upper threaded hole (111) and an upper assembly hole (112) are formed in the upper half part of the left half nut (11) from right to left, a lower threaded hole (113) and a lower assembly hole (114) are formed in the lower half part of the left half nut (11) from right to left, an upper positioning hole (121), an upper through hole (122) and an upper limiting hole (123) are sequentially formed in the upper half part of the right half nut (12) from left to right, a lower positioning hole (124), a lower through hole (125) and a lower limiting hole (126) are sequentially formed in the lower half part of the right half nut (12), and a pin groove (127) is further formed in the lower half part of the right, the pin slot (127) is vertically arranged at the joint of the lower passing hole (125) and the lower limiting hole (126); the anti-return device is characterized by further comprising a guide screw rod (13), a non-return screw rod (14), a first shaft sleeve (131), a second shaft sleeve (141), a first return spring (132), a second return spring (142), a non-return pin (143) and a wave spring (15) against the top, wherein the non-return pin (143) is installed in a pin groove (127), a screw rod through hole (145) is formed in the non-return pin (143), a non-return ring platform (146) is arranged in the screw rod through hole (145), the guide screw rod (13) sequentially penetrates through an upper limiting hole (123), an upper through hole (122), an upper locating hole (121) and an upper assembling hole (112) from right to left and is connected into the upper threaded hole (111) through threads at the end part, the first shaft sleeve (131) is sleeved on the guide screw rod (13), the right end of the first shaft sleeve (131) is clamped on the upper locating hole (121), the first return spring (132) is sleeved on the first shaft sleeve (131), one end of the first return, the other end of the first return spring (132) is propped against a limit table formed by the upper assembly hole (112) and the upper threaded hole (111); the check screw rod (14) sequentially penetrates through the lower limiting hole (126), the screw rod through hole (145), the lower through hole (125), the lower positioning hole (124) and the lower assembling hole (114) from right to left and is connected in the lower threaded hole (113) through threads at the end part, the second shaft sleeve (141) is sleeved on the check screw rod (14), the right end of the second shaft sleeve (141) is clamped on the lower positioning hole (124), the second reset spring (142) is sleeved on the second shaft sleeve (141), one end of the second reset spring (142) is propped against a boss of the second shaft sleeve (141), the other end of the second reset spring (142) is propped against a limiting table formed by the lower assembling hole (114) and the lower threaded hole (113), and a check ring groove (144) is formed in the middle part of the check screw rod (14); the wave spring pair (15) is arranged at the bottom of the pin groove (127) and abuts against the lower end of the check pin (143), so that the check ring table (146) is positioned in the check ring groove (144).

2. The split nut as claimed in claim 1, wherein said left half nut (11) and right half nut (12) are each in the shape of a half ring, and said left half nut (11) and right half nut (12) are in the shape of a circular ring when closed.

3. The split nut as claimed in claim 2, wherein the boss of the first sleeve (131) is a spherical boss, the upper positioning hole (121) is a spherical surface, and the spherical boss at the right end of the first sleeve (131) is fitted on the spherical surface of the upper positioning hole (121).

4. The split nut as claimed in claim 3, wherein the boss of the second collar (141) is a spherical boss, the lower positioning hole (124) is a spherical surface, and the spherical boss at the right end of the second collar (141) is fitted on the spherical surface of the lower positioning hole (124).

5. The split nut as claimed in claim 4, wherein the head of the lead screw (13) is provided with a first circular boss (133), the first circular boss (133) is in clearance fit with the upper limiting hole (123), the outer diameter of the first circular boss (133) is larger than the bore diameter of the upper passing hole (122), the lead screw (13) is in clearance fit with the upper passing hole (122), and the lead screw (13) is in sliding fit with the first sleeve (131).

6. The split nut according to claim 5, wherein the head of the check screw (14) is provided with a second circular boss (147), the second circular boss (147) is in clearance fit with the lower limiting hole (126), the outer diameter of the second circular boss (147) is larger than the hole diameter of the lower passing hole (125), the check screw (14) is in clearance fit with the lower passing hole (125), and the check screw (14) is in sliding fit with the second sleeve (141).

7. The split nut of claim 6, wherein check ring platform (146) right-hand member is toroidal surface (1461), and check ring platform (146) left end is crescent surface (1462), first through-hole (148) that toroidal surface (1461) formed are spacing hole (126) down towards, second through-hole (149) that crescent surface (1462) formed are through hole (125) down towards, circle and crescent surface (1462) excircle are inscribed in check ring platform (146) upper end in crescent surface (1462), circle and toroidal surface (1461) interior coaxial, crescent surface excircle and toroidal surface (1461) excircle are inscribed in check ring platform (146) lower extreme.

8. The split nut according to claim 7, characterized in that the left middle of the left half nut (11) is provided with a left arc-shaped groove (115), and the right middle of the right half nut (12) is provided with a right arc-shaped groove (128).

9. The split nut according to claim 8, wherein two left shifting holes (116) are provided on the left side of the left half nut (11), the two left shifting holes (116) are respectively provided on the upper end and the lower end of the left arc-shaped groove (115), and two right shifting holes (129) are provided on the right side of the right half nut (12), one of the right shifting holes (129) is provided between the right arc-shaped groove (128) and the upper limiting hole (123), and the other right shifting hole (129) is provided between the right arc-shaped groove (128) and the lower limiting hole (126).

10. The split nut as claimed in claim 9, wherein a hexagonal socket is formed on an end surface of the first circular boss (133); the end surface of the second round boss (147) is provided with a hexagon socket.