CN215748878U

CN215748878U - Slot head connector wrench

Info

Publication number: CN215748878U
Application number: CN202121570205.5U
Authority: CN
Inventors: 徐刚强; 郭峻秀; 张瑜
Original assignee: Hubei Sanliu11 Emergency Equipment Co ltd
Current assignee: Hubei Sanliu11 Emergency Equipment Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2022-02-08
Anticipated expiration: 2031-07-12

Abstract

A slot head connector wrench comprises a wrench rod, an arc-shaped body and a pin shaft; the end part of the pull rod is connected with the outer wall of the arc-shaped body; the section of the arc-shaped body is in a fan-shaped ring shape, the step-shaped inner cavity of the arc-shaped body comprises a middle step half hole and a small step half hole, the end face of the arc-shaped body close to the middle step half hole is a first positioning face, a step inner wall is arranged between the middle step half hole and the small step half hole, the end face of the arc-shaped body close to the small step half hole is a second positioning face, more than two axial holes are formed in the wall of the arc-shaped body along the axial direction, the pin shaft is arranged at the axial hole, and the two ends of the pin shaft protrude out of the two ends of the axial hole. The utility model has flexible use, can be adapted to the joint with irregular appearance and has large rotating torque.

Description

Slot head connector wrench

Technical Field

The utility model belongs to a pipeline connecting tool, and particularly relates to a wrench.

Background

In modern war, the main approach of oil guarantee in war is to transport by oil pipeline, and guarantee that oil pipeline accurately arrives at the appointed position in time to guarantee the oil smoothly flows in war, which is a fundamental work that must be done in preparation of military war. For the large-batch frequent connection and disassembly of pipelines at the replacement and conveying place, the frequent connection and disassembly operation is carried out between the pipelines and the connectors. Generally, an oil pipeline is formed by connecting a plurality of groove steel pipes through joints, in the connecting process, the groove steel pipes are paved on the ground along the pipeline direction one by one, when the hook groove steel pipes are connected with the hook groove steel pipes, the groove steel pipes are moved one by one and then are butted through the joints, and after the oil transportation operation is completed, the oil pipeline needs to be disassembled. When the hook groove pipeline accessories such as elbows, valves, equipment inlets and outlets and the like in the pipeline are converted into single-socket joints (joints for short), the assembly and disassembly operations are inconvenient due to limited operation space, and the requirement on rotation torque is also large.

Disclosure of Invention

The present invention is directed to overcoming the above-mentioned deficiencies of the prior art and providing a socket head connector wrench that is flexible to use, adaptable to irregularly shaped connectors, and has a high torque of rotation.

The technical scheme of the utility model is as follows: comprises a pull rod, an arc-shaped body and a pin shaft; the end part of the pull rod is connected with the outer wall of the arc-shaped body;

the section of the arc-shaped body is in a fan-shaped ring shape, the step-shaped inner cavity of the arc-shaped body comprises a middle step half hole and a small step half hole, the end face of the arc-shaped body close to the middle step half hole is a first positioning face, a step inner wall is arranged between the middle step half hole and the small step half hole, the end face of the arc-shaped body close to the small step half hole is a second positioning face, more than two axial holes are formed in the wall of the arc-shaped body along the axial direction, the pin shaft is arranged at the axial hole, and the two ends of the pin shaft protrude out of the two ends of the axial hole.

And annular grooves are formed at the joints of the two end surfaces of the axial hole and the pin shaft.

The annular groove is a concave conical groove; the two ends of the axial hole are chamfered to form outer groove walls, and the outer circle of the pin shaft and the two ends of the axial hole form two concave conical grooves.

The pull rod is connected with the middle part of the outer wall of the arc-shaped body through two symmetrically arranged reinforcing ribs.

The cross section of the pull rod is circular, rectangular or elliptical; one end of the reinforcing rib is a first cambered surface matched with the outer wall of the cambered body, and the other end of the reinforcing rib is a second cambered surface matched with the surface of the pull rod.

The first cambered surface and the second cambered surface are connected through a transition surface. When the lever, the reinforcing rib and the arc body are welded, the welding seams at the first arc surface and the second arc surface are not butted through the transition surface, so that the fatal defects of welding seam stress concentration, welding seam cracks and the like are avoided.

The included angle of the axes of the two adjacent pin shafts is equal to the included angle of the axes of the two adjacent loading and unloading holes on the loaded and unloaded piece.

The included angle of the two ends of the arc-shaped body is 170-190 degrees.

The arc-shaped body is made of a section of arc plate.

And a large step half hole, a middle step half hole and a small step half hole are sequentially connected on the first positioning surface. The large step half hole can reduce the area of the positioning surface when being used for chamfering, and can also reduce the weight of the arc-shaped body.

The use state of the utility model is two types: the first type is that a first support hole supports the surface of the outer circle of the joint, and a first positioning surface acts on the end surface of the joint; and secondly, the outer circle surface of the steel pipe connected with one end of the joint is supported by the support hole II, and the positioning surface II and the end surface of the joint are positioned. The first method of use is used in the case where the outer circumferential surface of the joint is regular, and the second method of use is used in the case where the outer circumferential surface of the connecting steel pipes is regular if the outer circumferential surface of the joint is irregular.

In order to be suitable for field environments or windy and sandy conditions, namely sand or sundries may be adhered to the surface to be unloaded, the concave conical groove is designed and used for containing the sand or the sundries, so that safety accidents caused by the fact that the depth of the pin shaft inserted into the unloading hole is influenced by the sand in the rotating process are avoided. The utility model is suitable for assembling and disassembling the single-bell-mouth joint with larger diameter in the field steel pipeline, and is also suitable for realizing the assembling and disassembling of the connecting joint by using the field pipeline through the assembling and disassembling hole.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a partial cross-sectional view of FIG. 2;

FIG. 4 is a state diagram of the present invention in use;

FIG. 5 is a cross-sectional view of FIG. 4;

fig. 6 is a partially enlarged view of fig. 3.

Detailed Description

In the drawings 1-3, the utility model is composed of a spanner bar 1, a reinforcing rib 2, an arc body 3 and a pin shaft 4, wherein the spanner bar 1 is welded with the arc body 3, and the reinforcing rib 2 connects, reinforces and fixes the spanner bar 1 and the arc body 3. The inner cavity of the arc-shaped body 3 is step-shaped, the middle step half hole 31 is a first supporting hole, the left end face of the arc-shaped body 3 is a first positioning face 32, the small step half hole 33 is a second supporting hole, and the right end face of the arc-shaped body 3 is a second positioning face 34. Three axial holes are axially arranged on the wall of the arc-shaped body 3, the pin shaft 4 is arranged at the axial holes, two ends of each axial hole are chamfered to form outer groove walls, and two concave conical grooves 35 are formed on the outer circle of the pin shaft 4 and two ends of each axial hole.

In fig. 4 and 5, the piece to be assembled and disassembled is a single-bell-mouth joint 8, the single-bell-mouth joint is also called a slot head joint, an assembling and disassembling hole is arranged on the end face of the single-bell-mouth joint 8, and the single-bell-mouth joint 8 is connected with a steel pipe 9. The use state of the utility model is two types: the first type is that a first support hole supports the surface of the outer circle of the joint, and a first positioning surface acts on the end surface of the joint; the first supporting hole is supported with the outer circle of the single-bell-mouth joint 8, the first positioning surface is clamped with the end part of the single-bell-mouth joint 8, and the single-bell-mouth joint 8 rotates through the pin shaft 4 inserted into the assembling and disassembling hole, so that the purposes of disassembling and assembling are achieved. And secondly, the outer circle surface of the steel pipe 9 connected with one end of the joint is supported by the support hole II, and the positioning surface II and the end surface of the joint are positioned. Two advantages of the present invention are as follows: the three pin shafts can bear larger torque; the utility model can use the excircle of the single-bell-mouth joint 8 as a supporting surface and the excircle of the steel pipe 9 as a supporting surface, and is suitable for the single-bell-mouth joint 8 under different working conditions.

In fig. 6, the two ends of the axial hole are chamfered to form outer groove walls, and the outer circle of the pin shaft 4 and the two ends of the axial hole form two concave tapered grooves 35.

Claims

1. A slot-head connector wrench, characterized in that it comprises a lever (1), an arc-shaped body (3), and a pin shaft (4); the end of the lever (1) is connected to the outer wall of the arc-shaped body (3) ;

The cross section of the arc-shaped body (3) is a fan ring, and the stepped inner cavity of the arc-shaped body (3) includes a middle step half hole (31), a small step half hole (33), and is close to the middle step half hole (31) The end face of the arc-shaped body (3) is the positioning surface one (32), the inner wall of the step is between the middle step half hole (31) and the small step half hole (33), and the arc near the small step half hole (33) The end face of the body (3) is the positioning surface two (34), the wall of the arc body (3) has more than two axial holes along the axial direction, the pin shaft (4) is installed at the axial hole, and the pin shaft ( 4) Both ends protrude from both ends of the axial hole.

2 . The slot head connector wrench according to claim 1 , wherein an annular groove is formed at the joint between the two end surfaces of the axial hole and the pin shaft ( 4 ). 3 .

3. The slot head connector wrench according to claim 2, characterized in that: the annular groove is a concave conical groove (35); the two ends of the axial hole are chamfered to form an outer groove wall, and the pin shaft ( 4) Two concave conical grooves (35) are formed at both ends of the outer circle and the axial hole.

4. The slot head connector wrench according to claim 1, wherein the lever (1) is connected to the middle of the outer wall of the arc body (3) via two symmetrically arranged reinforcing ribs (2).

5. The slot head connector wrench according to claim 4, characterized in that: the cross section of the lever (1) is circular, rectangular or oval; The first arc surface adapted to the outer wall, and the other end of the reinforcing rib (2) is the arc surface II adapted to the surface of the lever (1).

6 . The slot head connector wrench according to claim 5 , wherein the first arc surface and the second arc surface are connected by a transition surface. 7 .

7 . The slot head connector wrench according to claim 1 , wherein the included angle between the axes of the adjacent two pin shafts ( 4 ) is equal to the included angle between the axes of the adjacent two loading and unloading holes on the part to be loaded and unloaded. 8 .

8 . The slot-head connector wrench according to claim 1 , wherein the angle between the two ends of the arc-shaped body ( 3 ) is 170°˜190°. 9 .

9 . The slot head connector wrench according to claim 1 , wherein the arc body ( 3 ) is made of a segment of arc plate. 10 .

10. The slot head connector wrench according to claim 1, characterized in that: the positioning surface one (32) is provided with a large step half hole, a large step half hole, a middle step half hole (31), a small step half hole (31), and a small step half hole. The half holes (33) are connected in sequence.