Wrench capable of locking stainless steel sleeve

Abstract

The utility model discloses a wrench capable of locking a stainless steel sleeve, which belongs to the technical field of dismounting tools and comprises an insert fixing handle and a pressing head which are mutually connected, the pressing head comprises a first pressing head and a second pressing head which are oppositely arranged, a first groove is formed in the inner side of the first pressing head, and a second groove is formed in the outer side of the second pressing head. A first groove is formed in the inner side of the first pressing head, a first pipe pressing insert is embedded in the first groove, a second groove is formed in the inner side of the second pressing head, a second pipe pressing insert is embedded in the second groove, and the first pipe pressing insert and the second pipe pressing insert are oppositely arranged and are the same in structure. The first pipe pressing insert and the second pipe pressing insert each comprise an insert body, each insert body is of a semicircular structure with one side protruding, the arc-shaped face of each insert body is embedded into the corresponding groove, a pipe pressing groove is formed in the plane of the bottom of each insert body, one end of each pipe pressing groove is sealed, the other end of each pipe pressing groove is open, and an arc-shaped protrusion is arranged on the inner wall of the groove at the open end. A stainless steel hose provided with a stainless steel sleeve can be compressed, and the stainless steel sleeve is prevented from rotating.

Description

Technical Field

[0001] The utility model relates to the technical field of disassembly tools, in particular to a wrench capable of locking a stainless steel sleeve. Background Art

[0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art.

[0003] Stainless steel sleeves and stainless steel hoses are widely used in various industrial fields due to their excellent corrosion resistance, high temperature resistance and strength. For example, on the external detection switch of the manhole cover, the straight spring part of the external detection switch needs to be installed with a stainless steel hose and a stainless steel sleeve to enhance protection. The stainless steel sleeve and stainless steel hose are directly inserted and installed.

[0004] The stainless steel sleeve is easy to install and use with the stainless steel hose, and it is flexible to disassemble. However, special products need to be positioned and fixed, and it is not allowed to rotate and fall when installed on the product. In this case, it is necessary to use a suitable wrench tool to quickly position and press the stainless steel sleeve to fix the stainless steel sleeve and the stainless steel hose. The core of the existing wrench tool is not compatible with the shape of the stainless steel sleeve, and it cannot meet the needs of positioning and pressing the stainless steel sleeve. In addition, the incompatible wrench tool cannot provide sufficient clamping force, resulting in poor tightening effect. At the same time, the indentation position of the existing wrench tool is different when it is pressed and fixed, which affects the appearance. Utility Model Content

[0005] In order to solve the technical problems existing in the prior art, the utility model provides a wrench that can lock a stainless steel sleeve, which can tighten the stainless steel hose installed with the stainless steel sleeve to prevent the stainless steel sleeve from rotating and disassembling, so as to solve the problem that the stainless steel sleeve rotates and falls after installation.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] A wrench capable of locking a stainless steel sleeve comprises an insert fixing handle and a clamping head connected to each other, the clamping head comprising a first clamping head and a second clamping head arranged opposite to each other, a first groove is provided on the inner side of the first clamping head, a first tube pressing insert is embedded in the first groove, a second groove is provided on the inner side of the second clamping head, a second tube pressing insert is embedded in the second groove, the first tube pressing insert and the second tube pressing insert are arranged opposite to each other and have the same structure; the first tube pressing insert and the second tube pressing insert both comprise an insert body, the insert body is a semicircular structure convex on one side, its arc-shaped surface is embedded in the groove, a tube pressing groove is provided on the bottom plane, one end of the tube pressing groove is sealed and the other end is open, an arc-shaped protrusion is provided on the inner wall of the groove at the open end.

[0008] According to a further technical solution, the opposing surfaces of the first tube pressing insert and the second tube pressing insert are tightly fitted to form a channel with one end open.

[0009] According to a further technical solution, the protruding portion of the insert body is semicircular, and its diameter is smaller than the diameter of the insert body.

[0010] According to a further technical solution, the opening end of the tube pressing groove is arranged on the protruding part of the insert body.

[0011] According to a further technical solution, a positioning hole is provided on the arc surface of the insert body facing inward.

[0012] According to a further technical solution, the insert fixing handle comprises a first handle and a second handle, one end of the first handle is fixedly connected to the first clamping head, and one end of the second handle is fixedly connected to the second clamping head.

[0013] According to a further technical solution, a first limiting protrusion and a second limiting protrusion are disposed on the inner side surface between the first handle and the second handle relative to each other.

[0014] According to a further technical solution, an end of the first clamping head close to the first handle is connected to an end of the second clamping head close to the second handle via a lever structure.

[0015] According to a further technical solution, the lever structure comprises a first hinged joint and a second hinged joint which are hinged to each other.

[0016] According to a further technical solution, one end of the first hinged joint is fixed to the inner side of the first handle, the other end of the first hinged joint is hinged to one end of the second hinged joint, and the other end of the second hinged joint is fixed to the inner side of the second handle.

[0017] Beneficial effects of the utility model:

[0018] The utility model adopts a tube pressing groove with one end sealed and the other end opened in the first tube pressing insert and the second tube pressing insert to fit with the stainless steel hose installed with the stainless steel sleeve. By pressing the clamping head on the outer side of the tube pressing insert, the stainless steel sleeve and the stainless steel hose will be automatically locked as a whole, and the stainless steel sleeve will not rotate or fall off the stainless steel hose.

[0019] The bottom wall of the sealing end of the medium-pressure tube groove of the utility model is called the tube pressing length positioning surface, and an arc-shaped protrusion is provided on the inner wall of the groove at the open end, which can locate the position of the arc-shaped protrusion when pressing. When in use, after the stainless steel tube installed with the stainless steel sleeve is placed in the tube pressing groove for a certain length, one end abuts against the tube pressing length positioning surface and then starts to be pressed. The arc-shaped protrusion is pressed at a fixed distance, which can ensure that the position of the tube pressing groove of each stainless steel tube remains consistent.

[0020] The utility model installs the stainless steel sleeve onto the stainless steel hose. After the installation, a wrench capable of locking the stainless steel sleeve is used, so that the stainless steel sleeve can be effectively locked and fixed on the stainless steel hose. Moreover, the appearance of the stainless steel sleeve will not be damaged in any way, and its appearance can be kept in good condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0022] Figure 1 This is a structural diagram of the opening of the wrench of the utility model embodiment;

[0023] Figure 2 This is a closed structure diagram of a wrench according to an embodiment of the utility model;

[0024] Figure 3 This is a side structural diagram of the medium-pressure pipe insert of the wrench of the utility model embodiment;

[0025] Figure 4 This is a bottom structural diagram of a medium-pressure pipe insert of a wrench according to an embodiment of the utility model;

[0026] Figure 5 This is a structural diagram of a medium-pressure pipe insert inlaid with a stainless steel sleeve in a wrench according to an embodiment of the utility model;

[0027] Figure 6 This is a schematic diagram of the utility model stainless steel pipe installed in the stainless steel hose without being pressed;

[0028] Figure 7 This is a schematic diagram of the compression state of the stainless steel pipe of the utility model after being installed on the stainless steel hose.

[0029] Among them, 1-insert body, 2-protrusion, 3-first clamping head, 4-second clamping head, 5-connecting piece, 6-first hinged head, 7-second hinged head, 8-first handle, 9-second handle, 10-rubber anti-slip sleeve, 11-stainless steel sleeve, 12-stainless steel hose, 13-arc-shaped protrusion, 14-limiting plate, 15-first tube pressing insert, 16-second tube pressing insert, 17-tube pressing length positioning surface. DETAILED DESCRIPTION

[0030] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] See also Figure 1 , Figure 3 , Figure 4As shown, an embodiment of the utility model provides a wrench that can lock a stainless steel sleeve, including an insert fixing handle and a clamping head that are connected to each other, the clamping head including a first clamping head 3 and a second clamping head 4 that are arranged opposite to each other, the first clamping head 3 is provided with a first groove on the inner side, a first tube pressing insert 15 is embedded in the first groove, the second clamping head 4 is provided with a second groove on the inner side, a second tube pressing insert 16 is embedded in the second groove, the first tube pressing insert 15 and the second tube pressing insert 16 are arranged opposite to each other and have the same structure; the first tube pressing insert 15 and the second tube pressing insert 16 both include an insert body 1, the insert body 1 is a semicircular structure with a protrusion on one side, its arc-shaped surface is embedded in the groove, a tube pressing groove is provided on the bottom plane, one end of the tube pressing groove is sealed, and the other end is open, and an arc-shaped protrusion 13 is provided on the inner wall of the groove at the open end.

[0032] In this embodiment, the first tube pressing insert 15 and the second tube pressing insert 16 have the same structure, are arranged opposite to each other, and are combined into a tube pressing insert. The opposing surfaces of the first tube pressing insert 15 and the second tube pressing insert 16, i.e., the bottom planes, are tightly fitted to form a cylindrical channel with one end open, for the stainless steel hose 12 with the stainless steel sleeve 11 installed therein to be placed, and the stainless steel sleeve and the stainless steel hose can be fixed after being pressed.

[0033] like Figure 3 , Figure 4 As shown, the first tube pressing insert 15 and the second tube pressing insert 16 both include an insert body 1, which is a semicircular structure with one side protruding, and the protruding part 2 is also semicircular, and the diameter of the protruding part 2 is smaller than the diameter of the insert body 1. The arc surface of the insert body 1 is embedded in the first groove opened by the first pressing head 3 or the second groove opened by the second pressing head 4, and a tube pressing groove is opened on the bottom plane; the open end of the tube pressing groove is set at the protruding part 2 of the insert body 1, and is pressed on the stainless steel sleeve through the arc protrusion 13 on the inner wall of the groove at the open end, and a dent is pressed on the stainless steel sleeve to fix it.

[0034] The bottom wall of the sealed end of the tube pressing groove of the first tube pressing insert 15 and the second tube pressing insert 16 is called the tube pressing length positioning surface 17, which is used to locate the position of the arc-shaped protrusion on the stainless steel hose installed with the stainless steel sleeve. When in use, after the stainless steel hose 12 installed with the stainless steel sleeve 11 is placed in the tube pressing groove for a certain length, one end abuts against the tube pressing length positioning surface 17 and starts to be pressed, and the arc-shaped protrusion 13 is pressed at a fixed distance, which can ensure that the position of the tube pressing groove of each stainless steel tube is consistent.

[0035] A positioning hole is provided on the arc surface of the insert body 1 facing inwards, which is used to achieve fixed installation with the outer clamping head.

[0036] like Figure 5As shown, the above technical solution can accurately locate the length of the stainless steel sleeve 11 through the tube pressing groove on the insert body 1, and realize the tube pressing length positioning through the bottom wall of the sealing end of the tube pressing groove, i.e., the tube pressing length positioning surface. After pressing the insert fixing handle, the clamping head is clamped, and the stainless steel sleeve 11 and the stainless steel hose are fixed and locked by clamping the first tube pressing insert 15 and the second tube pressing insert 16 on both sides to prevent the stainless steel sleeve 11 from rotating or falling after installation.

[0037] In this embodiment, if Figure 1 , Figure 2 As shown, the insert fixing handle includes a first handle 8 and a second handle 9, one end of the first handle 8 is fixedly connected to the first clamping head 3, one end of the second handle 9 is fixedly connected to the second clamping head 4, one end of the first clamping head 3 close to the first handle 8 and one end of the second clamping head 4 close to the second handle 9 are connected through a lever structure, one end of the first clamping head 3 away from the first handle 8 and one end of the second clamping head 4 away from the second handle 9 are connected through a connecting piece 5, and the other ends of the first handle 8 and the second handle 9, i.e. the ends, are both provided with rubber anti-slip sleeves 10.

[0038] The lever structure includes a first hinge joint 6 and a second hinge joint 7 that are hinged to each other. One end of the first hinge joint 6 is fixed to the inner side of the first handle 8 and away from the end of the rubber anti-slip sleeve 10. The other end of the first hinge joint 6 is hinged to one end of the second hinge joint 7. The other end of the second hinge joint 7 is fixed to the inner side of the second handle 9 and away from the end of the rubber anti-slip sleeve 10. The first hinge joint 6 and the second hinge joint 7 realize the basic structure of the lever by hinged connection, allowing the first handle 8 and the second handle 9 to rotate relative to each other. According to the principle of the lever, the clamping force can be adjusted by adjusting the angle between the first handle 8 and the second handle 9. The first handle 8 and the second handle 9 are the main contact points between the user and the lever structure. The provision of the rubber anti-slip sleeve 10 can effectively prevent slipping during use, thereby improving the safety and stability of the operation.

[0039] The first and second limiting protrusions are arranged on the inner side surfaces between the first handle 8 and the second handle 9. The first and second limiting protrusions are arranged at one end close to the lever structure to ensure that the first and second handles 8 and 9 maintain a relatively stable position relationship during operation, avoid relative sliding or dislocation when applying force, and enhance the stability of the wrench during use. At the same time, the relative limiting protrusions can increase the friction between the handles, thereby enhancing the user's grip when holding the wrench and preventing excessive force.

[0040] A first groove is embedded inwardly on the inner side of the end of the first clamping head 3 away from the lever structure, and a first fixing hole is opened between the first groove and the top of the first clamping head 3. The first tube pressing insert 15 is embedded in the first groove, so that the first fixing hole is opposite to the positioning hole at the top of the first tube pressing insert 15, and the screw passes through the first fixing hole and the positioning hole to fix the first tube pressing insert 15 on the first clamping head 3; similarly, the second clamping head 4 is opposite to the first clamping head 3, and a second groove is embedded inwardly on the inner side of the end of the second clamping head 4 away from the lever structure, and a second fixing hole is opened between the second groove and the bottom of the second clamping head 4, and the second tube pressing insert 16 is embedded in the second groove, so that the second fixing hole is opposite to the positioning hole at the top of the second tube pressing insert 16, and the screw passes through the second fixing hole and the positioning hole to invert and fix the second tube pressing insert 16 on the second clamping head 4.

[0041] like Figure 3 As shown, the shapes of the first groove and the second groove are respectively matched with the first tube pressing insert 15 and the second tube pressing insert 16, so that the arcuate surfaces of the first tube pressing insert 15 and the second tube pressing insert 16 are respectively closely fitted with the first groove and the second groove. Limiting plates 14 are extended inwardly on both sides of the first groove and the second groove to limit and clamp the first tube pressing insert 15 and the second tube pressing insert 16, and are further fixed at the bottom to prevent the first tube pressing insert 15 and the second tube pressing insert 16 from displacement or falling off during operation, thereby ensuring the stability of the overall clamping structure.

[0042] A connecting rod is provided between the first groove, the second groove and the lever structure and near the groove. One end of the connecting rod is fixed to the side of the first clamping head 3, and the other end of the connecting rod is fixed to the side of the second clamping head 4. The main function of the connecting rod is to fix the structure of the clamp head and ensure that the clamp head can remain stable during the opening and closing process. When setting the connecting rod, the maximum angle and stroke of the clamp head when opening are taken into consideration to ensure that the clamp head can be opened smoothly without unnecessary restrictions.

[0043] In some embodiments, the fixing method in the wrench structure is screw or bolt fixing to fix different structures together.

[0044] It should be noted that the drawings exaggerate the distances or sizes between the parts in order to show the positions of the parts, and the schematic diagrams are for illustration only.

[0045] Working principle details:

[0046] First, the first pressing tube insert 15 and the second pressing tube insert 16 are fitted into the first groove of the first pressing head 3 and the second groove of the second pressing head 4, and then they are locked and fixed into a whole with screws, and then the stainless steel sleeve 11 is installed on the stainless steel hose 12. Figure 6As shown, the stainless steel sleeve 11 can rotate and fall off the stainless steel hose 12. Then, the stainless steel tube with the stainless steel sleeve installed is placed between the openings at one end formed by the first tube pressing insert 15 and the second tube pressing insert 16. Because the tube pressing insert has already done the pressing length positioning and arc-shaped convex shape through the tube pressing groove inside, finally press the insert fixing handle, and the stainless steel sleeve 11 and the stainless steel hose 12 will be automatically locked as a whole, as shown in FIG. Figure 7 As shown, a circle of grooves will appear on the outside for locking and positioning, so that the stainless steel sleeve will not rotate or fall off on the stainless steel hose 12, thereby achieving locking and fixing of the two.

[0047] Although the above describes the specific implementation methods of the utility model in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A wrench capable of locking a stainless steel sleeve, characterized in that: It comprises an insert fixing handle and a clamping head which are connected to each other, the clamping head comprises a first clamping head and a second clamping head which are arranged opposite to each other, a first groove is provided on the inner side of the first clamping head, a first tube pressing insert is embedded in the first groove, a second groove is provided on the inner side of the second clamping head, a second tube pressing insert is embedded in the second groove, the first tube pressing insert and the second tube pressing insert are arranged opposite to each other and have the same structure; the first tube pressing insert and the second tube pressing insert both comprise an insert body, the insert body is a semicircular structure with a protrusion on one side, its arc-shaped surface is embedded in the groove, a tube pressing groove is provided on the bottom plane, one end of the tube pressing groove is sealed and the other end is open, an arc-shaped protrusion is provided on the inner wall of the groove at the open end.

2. A wrench capable of locking a stainless steel sleeve as claimed in claim 1, characterized in that: The opposing surfaces of the first tube pressing insert and the second tube pressing insert are tightly fitted to form a channel with one end open.

3. A wrench capable of locking a stainless steel sleeve as claimed in claim 1, characterized in that: The protruding portion of the insert body is semicircular, and its diameter is smaller than the diameter of the insert body.

4. A wrench capable of locking a stainless steel sleeve as claimed in claim 3, characterized in that: The open end of the tube pressing groove is arranged on the protruding part of the insert body.

5. A wrench capable of locking a stainless steel sleeve as claimed in claim 3, characterized in that: A positioning hole is provided on the arc surface of the insert body facing inward.

6. A wrench capable of locking a stainless steel sleeve as claimed in claim 1, characterized in that: The insert fixing handle comprises a first handle and a second handle, one end of the first handle is fixedly connected to the first clamping head, and one end of the second handle is fixedly connected to the second clamping head.

7. A wrench capable of locking a stainless steel sleeve as claimed in claim 6, characterized in that: A first limiting protrusion and a second limiting protrusion are disposed opposite to each other on the inner side surfaces between the first handle and the second handle.

8. A wrench capable of locking a stainless steel sleeve as claimed in claim 6, characterized in that: One end of the first clamping head close to the first handle is connected with one end of the second clamping head close to the second handle through a lever structure.

9. A wrench capable of locking a stainless steel sleeve as claimed in claim 8, characterized in that: The lever structure includes a first hinged joint and a second hinged joint which are hinged to each other.

10. A wrench capable of locking a stainless steel sleeve as claimed in claim 9, characterized in that: One end of the first hinged joint is fixed to the inner side of the first handle, the other end of the first hinged joint is hinged to one end of the second hinged joint, and the other end of the second hinged joint is fixed to the inner side of the second handle.

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