CN210566666U

CN210566666U - Pipe thread fastening appurtenance

Info

Publication number: CN210566666U
Application number: CN201920654549.0U
Authority: CN
Inventors: 王麟; 楚鹏; 周超凡
Original assignee: China Nuclear Industry Maintenance Co Ltd
Current assignee: China Nuclear Industry Maintenance Co Ltd
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2020-05-19
Anticipated expiration: 2029-05-08

Abstract

The utility model is suitable for an erection equipment field provides a pipe thread fastening appurtenance, cooperates with torque wrench to realize the spiro union of pipeline, including the registrate piece, grafting piece and fastener, the registrate piece includes left semi-ring and right semi-ring, and left semi-ring and right semi-ring rotate to be connected and can lock and press from both sides the pipeline between the two; the inserting block is fixed on the left buckling part or the right buckling part and is used for being matched and connected with the torque wrench to receive the bending moment from the torque wrench; the fastener is used for detachably connecting the other end parts of the left half ring and the right half ring, and applying radial clamping force to the pipeline by reducing the distance between the two end parts so that the pipeline can synchronously rotate with the left half ring and the right half ring under the bending moment. The utility model provides a pipe thread fastening appurtenance realizes the spiro union of pipeline with the cooperation of torque wrench, easy operation and enable pipe thread fastening to regulation fastening force to avoid connecting the problem of tension or cross pine.

Description

Pipe thread fastening appurtenance

Technical Field

The utility model belongs to the erection equipment field especially relates to a pipe thread fastening appurtenance.

Background

For the screw connection of the pipeline, the existing mode is to manually rotate the pipeline or screw the pipeline by using a pipe wrench, the manually rotated pipeline is often not fastened to a specified torque value, and the labor cost is high. The pipe tongs are used for rotating the pipeline, so that the pipeline is easily damaged due to overlarge fastening force of the pipe tongs.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a pipe thread fastening appurtenance, it aims at providing a pipe thread fastening appurtenance convenient to operation and can fasten to specific moment value.

The utility model provides a pipe thread fastening appurtenance realizes the spiro union of pipeline with the cooperation of torque wrench, include:

the left half ring comprises a left front part rotationally connected with the right half ring, a left buckling part connected with the left front part and a left rear part connected with the left buckling part, the right half ring comprises a right front part rotationally connected with the left front part, a right buckling part connected with the right front part and a right rear part connected with the right buckling part, and the left rear part and the right rear part are close to each other to clamp the pipeline between the left buckling part and the right buckling part;

the insertion block is fixed on the left buckling part or the right buckling part and is used for being matched and connected with the torque wrench to receive the bending moment from the torque wrench;

and the fastening piece is used for detachably connecting the left rear part and the right rear part, and the left buckling part and the right buckling part apply radial clamping force to the pipeline clamped between the left buckling part and the right buckling part by reducing the distance between the left rear part and the right rear part, so that the pipeline can synchronously rotate with the left buckling part and the right buckling part under the bending moment.

Further, the left buckling part is arranged in an equal section in the axial direction.

Furthermore, the left buckling part and the right buckling part are arranged at the same height, and the upper surface of the left buckling part is flush with the upper surface of the right buckling part.

Further, the surface of the left buckling part abutted to the pipeline is a frosted surface.

Further, the fastener include the bolt and with the nut that the bolt cooperation is connected, the left rear portion has seted up at its left surface right and has link up about in order to supply the left through-hole that the bolt passed, the right rear portion has seted up at its right surface left and has link up about in order to supply the right through-hole that the bolt passed, the bolt passes in order the left through-hole with the right through-hole with thereby the nut spiro union will the left rear portion with the connection can be dismantled to the right rear portion.

Further, the nut is a butterfly nut, and the bolt is a butterfly bolt.

Furthermore, the left front part is provided with a first through hole which is communicated with the upper surface of the left front part in a vertical direction, the right front part is provided with a second through hole which is communicated with the upper surface of the right front part in a vertical direction, the sleeving part further comprises a bolt which sequentially penetrates through the first through hole and the second through hole, and the left front part and the right front part rotate around the bolt.

The utility model discloses still provide another kind of pipe thread fastening appurtenance, realize the spiro union of pipeline with the cooperation of torque wrench, torque wrench has the ratchet head, include:

the insertion block is fixed on the left buckling part or the right buckling part, and a groove which is matched and connected with the ratchet head to receive the bending moment from the torque wrench is formed in the upper surface of the insertion block downwards;

The utility model discloses still provide another kind of pipe thread fastening appurtenance, realize the spiro union of pipeline with the cooperation of torque wrench, torque wrench has the hexagonal sleeve, include:

the insertion block comprises a connecting part connected with the left buckling part or the right buckling part and an insertion part connected with the connecting part and extending in the radial direction, and the insertion part can be matched and connected with the hexagonal sleeve to receive the bending moment from the torque wrench;

The utility model provides a pipe thread fastening appurtenance realizes the spiro union of pipeline with the cooperation of torque wrench, easy operation and enable pipe thread fastening to regulation fastening force to avoid connecting the problem of tension or cross pine.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a top view of a middle pipe thread tightening auxiliary tool according to an embodiment of the present invention;

FIG. 2 is another plan view of a middle tube thread tightening tool according to an embodiment of the present invention;

FIG. 3 is a rear view of FIG. 2;

fig. 4 is a schematic structural view of a left half ring in a first embodiment of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Nesting component	20	Plug-in block
11	Left semi-ring	21	Groove
				111	Left front part	30	Fastening piece
112	Left buckle part	31	Bolt
				113	Left rear part	32	Nut
12	Right semi-ring
				13	Bolt
131	Pin body
				132	First position limiting part
133	Second position limiting part

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

It should be further noted that, in the embodiment of the present invention, the XYZ rectangular coordinate system established in fig. 1 is defined: one side in the positive direction of the X axis is defined as the right side, and one side in the negative direction of the X axis is defined as the left side; one side in the positive direction of the Y axis is defined as the front, and one side in the negative direction of the Y axis is defined as the back; the side in the positive direction of the Z axis is defined as the upper side, and the side in the negative direction of the Z axis is defined as the lower side.

It should be noted that the terms of left, right, upper and lower directions in the embodiments of the present invention are only relative concepts or are referred to the normal use state of the product, and should not be considered as limiting.

Example one

Referring to fig. 1 to 4, the present embodiment provides an auxiliary tool for fastening a pipe thread, which is used in conjunction with a torque wrench to screw a pipe.

The pipe thread fastening auxiliary tool comprises a sleeve member 10, a plug block 20 and a fastener 30.

The sleeve member 10 includes a left half ring 11 and a right half ring 12, and the left half ring 11 and the right half ring 12 are rotatably connected and can be fastened to clamp the pipeline therebetween. The left half ring 11 comprises a left front part 111 rotationally connected with the right half ring 12, a left buckle part 112 connected with the left front part 111 and a left rear part 113 connected with the left buckle part 112, the right half ring 12 comprises a right front part rotationally connected with the left front part 111, a right buckle part connected with the right front part and a right rear part connected with the right buckle part, and the left rear part 113 and the right rear part are close to each other to clamp a pipeline between the left buckle part 112 and the right buckle part.

The insertion block 20 is fixed on the left buckle portion 112 or the right buckle portion and is used for being matched and connected with the torque wrench to receive the bending moment from the torque wrench.

The fastener 30 is used for detachably connecting the left rear portion 113 and the right rear portion, and by reducing the distance between the left rear portion 113 and the right rear portion, the left buckling portion 112 and the right buckling portion apply a radial clamping force to a pipe clamped therebetween and enable the pipe to rotate synchronously with the left buckling portion 112 and the right buckling portion under a bending moment.

When the pipeline is screwed, the end part with the pipe thread is contacted with a structure to be screwed and is preliminarily fixed, and then the left half ring 11 and the right half ring 12 are sleeved on the pipeline and are fixed by the fastening piece 30. Then, the torque wrench is connected with the insertion block 20 in a matching manner, and the torque wrench rotates by taking the axis of the pipeline as a rotating shaft to drive the pipeline to rotate so as to fasten the pipeline on a structure to be screwed. When disassembling the structure of pipeline and spiro union, with left semi-ring 11 and right semi-ring 12 registrate on the pipeline, then be connected torque wrench and grafting piece 20 cooperation, use the pipeline axis as rotation axis antiport with torque wrench, drive the pipeline and rotate and with the structure separation of pipeline and spiro union.

The torque wrench has a torque adjusting structure, and can calculate and set torque before the torque wrench is connected with the plug connector, and then the torque wrench is connected and rotated to enable the pipe thread to be fastened to the specified fastening force, so that the situation that the pipeline thread is seized or loosened is avoided.

Referring to fig. 1, the torque of the torque wrench is calculated as follows:

F1*R＝F2*(L+R)

f1 is the fastening force specified for the pipe thread connection, R is the pipe radius, F2 is the actual fastening force (torque value) of the torque wrench, and L is the distance from the connection point of the torque wrench and the plug-in unit to the tangent of the pipe.

In the above equation, L is a fixed value, the required tightening force F2 of the torque wrench can be calculated from the pipe diameter R and the predetermined tightening force F1, and the tightening force F2 of the torque wrench is set to tighten the pipe to the predetermined tightening force F1.

In conclusion, the pipe thread fastening auxiliary tool provided by the embodiment is matched with the torque wrench to realize the thread connection of the pipeline, is simple to operate, and can fasten the pipe thread to the specified fastening force so as to avoid the problem of over-tightening or over-loosening connection.

In this embodiment, the left and right clasping

portions

112 and 112 are both annular and abut against the pipe when clasped. Preferably, the left buckle part 112 and the right buckle part are of a symmetrical structure, the inner surface of the left buckle part 112 is attached to the pipeline, and the section curvature of the inner surface of the left buckle part is the same as that of the pipeline, so that the contact area between the left buckle part 112 and the pipeline is increased, the pipeline is uniformly stressed, and the pipeline is prevented from being damaged due to too large local pressure.

Preferably, the surface of the left button portion 112 that abuts the pipe is a frosted surface to increase the friction between the left button portion 112 and the pipe, thereby increasing the resistance to relative rotation between the pipe and the socket.

Referring to fig. 3, the left buckle portion 112 is disposed with a uniform cross section in the axial direction. That is, the left buckle part 112 is a column extending up and down, and this design can increase the contact area between the left buckle part 112 and the pipeline, thereby reducing the pressure of the pipeline.

Further, the left buckle part 112 and the right buckle part are arranged at the same height, and the upper surface of the left buckle part 112 is flush with the upper surface of the right buckle part. The clamping force that the pipeline received under this design is located the same horizontal plane to avoid receiving the clamping force that comes from left knot portion 112 and receiving the clamping force that comes from the right knot portion not at the same horizontal plane and produce the risk that the shearing force leads to the pipeline broken.

Referring to fig. 1, the fastening member 30 includes a bolt 31 and a nut 32 engaged with the bolt 31, the left rear portion 113 has a left through hole formed on a left surface thereof to extend through the bolt 31 in a left-right direction, the right rear portion has a right through hole formed on a right surface thereof to extend through the bolt 31 in a left-right direction, and the bolt 31 passes through the left through hole and the right through hole in sequence and is screwed with the nut 32 to detachably connect the left rear portion 113 and the right rear portion. The left rear part 113 and the right rear part are connected or disconnected through the matching connection of the bolt 31 and the nut 32, and the distance between the left rear part 113 and the right rear part is adjusted through the rotation of the bolt 31 and the nut 32, so that the tightness degree between the left buckling part 112 and the right buckling part and the pipeline is adjusted. Simple structure, the practicality is strong.

Further, referring to fig. 2, the bolt 31 is a wing bolt, and the nut 32 is a wing nut, so that the bolt 31 and the nut 32 can be directly screwed by hand without the assistance of a wrench, thereby improving the convenience of operation.

Referring to fig. 3, the left front portion 111 has a first through hole penetrating through it from top to bottom on its upper surface, the right front portion has a second through hole penetrating through it from top to bottom on its upper surface, the sheathing member 10 further includes a bolt 13 sequentially passing through the first through hole and the second through hole, and the left front portion 111 and the right front portion 121 rotate around the bolt 13. The left half ring 11 and the right half ring 12 are rotatably connected through the bolt 13, the structure is simple, and the manufacturing cost is low.

The plug 13 includes a cylindrical pin body 131, a first stopper 132 fixed to a lower end of the pin body 131, and a second stopper 133 detachably coupled to an upper end portion of the pin body 131. The pin body 131 passes through the first and second through holes, the first stopper 132 restricts the left and right

front portions

111 and 111 from moving downward, and the second stopper 133 restricts the left and right

front portions

111 and 111 from moving upward. The second limiting member 133 and the pin body 131 may be connected in a sleeved manner, or the pin body 131 may be provided with a fixing hole into which the second limiting member 133 is inserted to connect with the second limiting member 133.

Example two

Referring to fig. 2 and 3, the present embodiment provides an auxiliary tool for fastening a pipe thread, which is used to screw a pipe in cooperation with a torque wrench having a ratchet head. The pipe thread fastening auxiliary tool comprises a sleeve member 10, a plug block 20 and a fastener 30.

The insertion block 20 is fixed on the left buckle part 112 or the right buckle part, and the insertion block 20 is provided with a groove 21 downwards on the upper surface thereof, which is matched and connected with the ratchet head to receive the bending moment from the torque wrench. The matching design of the ratchet wheel and the groove 21 has good meshing effect and is not easy to slip. The size of recess 21 may be varied to 1/4 inch, 3/8 inch, 1/2 inch, 3/4 inch, etc. depending on the size of the ratchet head.

When the pipeline is screwed, the end part with the pipe thread is contacted with a structure to be screwed and is preliminarily fixed, and then the left half ring 11 and the right half ring 12 are sleeved on the pipeline and are fixed by the fastening piece 30. Then, the ratchet head of the torque wrench is inserted into the groove 21, and the torque wrench is rotated by using the axis of the pipeline as a rotating shaft to drive the pipeline to rotate so as to fasten the pipeline on the structure to be screwed. When disassembling the structure of pipeline and spiro union, with left semi-ring 11 and right semi-ring 12 registrate on the pipeline, then insert recess 21 with torque wrench's ratchet, use the pipeline axis as rotation axis antiport with torque wrench, drive the pipeline and rotate and with the structure separation of pipeline and spiro union.

The pipe thread fastening appurtenance that this embodiment provided, the spiro union with the pipeline is realized in the torque wrench cooperation, easy operation just enables pipe thread fastening to regulation fastening force to avoid connecting the problem of tension or too pine.

EXAMPLE III

Referring to fig. 1, the present embodiment provides an auxiliary tool for fastening a pipe thread, which is matched with a torque wrench to realize a threaded connection of a pipe, wherein the torque wrench has a hexagonal socket.

The insertion block 20 includes a connection portion connected to the left buckling portion 112 or the right buckling portion and an insertion portion connected to the connection portion and extending in a radial direction, and the insertion portion can be connected to the hexagonal socket to receive the bending moment from the torque wrench. Namely a hexagonal prism which extends radially and is matched with the hexagonal sleeve. The hexagonal socket is inserted into the insertion part, so that the torque wrench and the insertion block 20 are connected in a matched manner and the torque is transmitted during rotation. The matching design structure of the insertion part and the hexagonal sleeve is simple, and the transmission performance is good.

When the pipeline is screwed, the end part with the pipe thread is contacted with a structure to be screwed and is preliminarily fixed, and then the left half ring 11 and the right half ring 12 are sleeved on the pipeline and are fixed by the fastening piece 30. Then, the hexagonal socket of the torque wrench is sleeved into the insertion part, and the torque wrench is rotated by taking the axis of the pipeline as a rotating shaft to drive the pipeline to rotate so as to fasten the pipeline on a structure to be screwed. When disassembling the structure of pipeline and spiro union, registrate left half ring 11 and right half ring 12 on the pipeline, then embolia grafting portion with torque wrench's hexagonal sleeve, use the pipeline axis as rotation axis antiport with torque wrench, drive the pipeline and rotate and with the structure separation of pipeline and spiro union.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims

1. The utility model provides a pipe thread fastening appurtenance, the spiro union with the pipeline is realized in the cooperation of torque wrench, a serial communication port, include:

2. A pipe threading auxiliary tool according to claim 1 wherein said left hand buckle portion is of uniform cross-sectional configuration in the axial direction.

3. A pipe threading auxiliary tool according to claim 2 wherein said left and right thread portions are disposed at equal heights and an upper surface of said left thread portion is flush with an upper surface of said right thread portion.

4. A pipe threading aid according to claim 2 wherein the surface of said left hand clasp portion which abuts said pipe is a frosted surface.

5. A pipe threading auxiliary tool as claimed in any one of claims 1 to 4 wherein said fastener comprises a bolt and a nut cooperatively connected with said bolt, said left rear portion having a left through hole formed in a left surface thereof to the right for passing said bolt therethrough, said right rear portion having a right through hole formed in a right surface thereof to the left for passing said bolt therethrough, said bolt passing through said left through hole and said right through hole in sequence to be threadedly engaged with said nut to detachably connect said left rear portion and said right rear portion.

6. A pipe threading aid according to claim 5 wherein said nut is a wing nut; the bolts are butterfly bolts.

7. A pipe threading auxiliary tool as claimed in claim 6 wherein said left front portion has a first through hole formed therethrough in a downward direction on an upper surface thereof, said right front portion has a second through hole formed therethrough in a downward direction on an upper surface thereof, said engaging member further comprises a pin passing through said first through hole and said second through hole in sequence, and said left front portion and said right front portion rotate about said pin.

8. A pipe thread tightening aid for cooperating with a torque wrench to effect threading of a pipe, the torque wrench having a ratchet head, comprising:

9. The utility model provides a pipe thread fastening appurtenance, realizes the spiro union of pipeline with the cooperation of torque wrench, torque wrench has hexagonal sleeve, its characterized in that includes: