Valve pipe welding jig

Abstract

The utility model provides a valve pipe welding jig, and belongs to the technical field of pipeline welding jigs. The valve pipe welding jig comprises at least one main pipe fixing frame, each main pipe fixing frame is provided with a main pipe hole, the main pipe holes of the main pipe fixing frames are aligned in the first direction, and the main pipe holes are used for a main pipe of a valve pipe to penetrate through; the at least one branch pipe positioning plate is provided with a through hole and an opening, the through hole is aligned with the main pipe hole, the top of the opening penetrates through the branch pipe positioning plate, the bottom of the opening is communicated with the through hole, and at least one side wall of the opening is used for forming a branch pipe positioning surface for placing a branch pipeline of the valve pipe; the branch pipe positioning face is obliquely arranged in the second direction, the second direction is perpendicular to the first direction, and a preset angle is formed between the second direction and the vertical plane. The valve pipe welding jig can improve the positioning accuracy and the welding efficiency of a pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline welding jigs, in particular to a valve pipe welding jig. Background Art

[0002] Pipes are common components of valve boxes. For valve boxes with different functions, the connection forms of the pipes used are different. For example, the pipes of the valve box usually include a main pipe with a larger diameter and branches set at different positions of the main pipe. The angles between each branch pipe and the main pipe vary depending on the usage scenario.

[0003] When the main pipe and the branch pipe are on the same horizontal plane, it is convenient to position them before welding. However, when the branch pipe and the main pipe are not on the same horizontal plane, such as in the valve box used in the chemical supply system, the main pipe and the branch pipe are not on the same horizontal plane. When welding the branch pipe on the main pipe, it is often necessary to manually position the angle between the two. This method has poor positioning accuracy and low efficiency. Utility Model Content

[0004] One purpose of the utility model is to provide a valve pipe welding jig, which can improve the positioning accuracy and welding efficiency of the pipeline.

[0005] In particular, an embodiment of the present application provides a valve pipe welding jig, comprising:

[0006] At least one main pipe fixing frame, each of the main pipe fixing frames is provided with a main pipe hole, the main pipe holes of each of the main pipe fixing frames are aligned along a first direction, and the main pipe hole is used to pass the main pipe of the valve pipe;

[0007] At least one branch pipe positioning plate is provided with a through hole and an opening, wherein the through hole is aligned with the main pipe hole, the top of the opening passes through the branch pipe positioning plate, and the bottom is connected to the through hole, and at least one side wall of the opening is used to form a branch pipe positioning surface for placing the branch pipe of the valve pipe, and the branch pipe positioning surface is inclined along a second direction, and the second direction is perpendicular to the first direction and is arranged at a preset angle to the vertical plane.

[0008] Furthermore, a positioning groove extending along the second direction is formed on the branch pipe positioning surface, and the positioning groove matches the outer peripheral surface of the branch pipe so as to position the branch pipe in the first direction.

[0009] Furthermore, the opening has two symmetrically arranged side surfaces for forming two branch pipe positioning surfaces.

[0010] Furthermore, one side of the branch pipe positioning plate is in contact with a side surface of one of the branch pipe fixing frames.

[0011] Furthermore, a support frame is provided on the side wall of at least one of the main pipe fixing frames, and the support frame is configured to be movable in a vertical direction relative to the main pipe fixing frame, and the top surface of the support frame is used to support the valve on the main pipe.

[0012] Furthermore, the support frame includes a connected vertical portion and a horizontal portion for supporting the valve, the vertical portion is provided with a first connecting hole, and the main pipe fixing frame is provided with a waist-shaped hole extending vertically so that the support frame can be positioned by a first fastener passing through the first connecting hole and the waist-shaped hole.

[0013] Furthermore, the main pipe fixing frame comprises:

[0014] A main body, the top of which is provided with a first recess;

[0015] A covering portion, located on the top of the main body, and a second recess is provided on the bottom surface of the covering portion;

[0016] The opening and closing mechanism is used to drive the cover part to rotate relative to the main body part so as to form an unlocked state and a locked state. The first recess and the second recess are used to form the main pipe hole in the locked state.

[0017] Furthermore, a snap-fitting recess is provided on one side of the main body in the width direction;

[0018] The opening and closing mechanism comprises a connecting piece and a locking mechanism respectively arranged on both sides of the main body in the width direction;

[0019] The two ends of the connecting member are hinged to the main body and the covering part respectively;

[0020] The locking mechanism comprises:

[0021] A connecting component, the top end of which is hinged to the covering portion;

[0022] The handle portion is hinged to the bottom end of the connecting assembly, and one end of the handle portion is provided with a hook matching the engaging recess, and the other end of the handle portion is used to withstand the operating force used to drive the handle portion to rotate, so that the hook clamps the engaging recess or disengages from the engaging recess.

[0023] Furthermore, the valve pipe welding jig further comprises a fixed base, and at least a portion of the main pipe fixing frame is configured to be movable relative to the base along the first direction.

[0024] Furthermore, a movable slide groove is provided at the base, and a second connection hole vertically aligned with the movable slide groove is provided at the bottom of the main pipe fixing frame so that a second fastener can pass through the movable slide groove and then be fixed to the second connection hole.

[0025] According to the first aspect of the utility model, the valve pipe welding jig includes a main pipe positioning frame and a branch pipe positioning plate. The main pipe positioning frame and the branch pipe positioning plate can pass through the main pipe so that the main pipe is arranged horizontally along a first direction. The branch pipe positioning plate is provided with a branch pipe positioning surface for positioning the branch pipe. The branch pipe positioning surface is an inclined surface, which can limit the branch pipe to a specific angle with the main pipe, so as to facilitate the positioning of the main pipe and the branch pipe that are not in the same horizontal plane before welding. The opening of the branch pipe positioning plate passes through the top surface of the branch pipe positioning plate, so that the convenient operation of the welding head can be ensured. This valve pipe welding jig can ensure the positioning accuracy of the main pipe and the branch pipe, and greatly improve the welding efficiency.

[0026] According to the second aspect of the utility model, a positioning groove is further provided on the branch pipe positioning surface, and the positioning groove can limit the freedom of the branch pipe along the first direction, thereby making the positioning of the branch pipe more accurate.

[0027] Furthermore, by symmetrically arranging the branch pipe positioning surfaces on the branch pipe positioning plate, each branch pipe positioning surface is provided with a positioning groove, so that the fixture can adapt to more usage scenarios, that is, whether the branch pipe needs to be set on the left or right side of the main pipe, the same valve pipe welding fixture can be used for positioning, thereby improving the versatility of the fixture.

[0028] According to the third aspect of the utility model, by adjusting the height of the first fastener in the waist-shaped hole, the height of the support frame relative to the main pipe fixing frame can be adjusted to accommodate valves of different sizes on the main pipeline, thereby expanding the scope of application of the valve pipe welding fixture.

[0029] According to the fourth aspect of the utility model, the main pipe fixing frame is arranged as a split structure that can be opened and closed, including a main body, a cover part and an opening and closing mechanism. Through the setting of the opening and closing mechanism, a locking state for clamping the valve pipe and an unlocking state for facilitating the removal of the valve pipe can be formed, thereby facilitating the positioning and removal of the valve pipe on the jig and helping to improve work efficiency.

[0030] According to the fifth aspect of the utility model, by setting the main pipe fixing frame to be movable relative to the base, different support lengths are formed in the first direction, so that the fixture can adapt to main pipes of different lengths and provide more suitable support for main pipes of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic structural diagram of a valve pipe welding jig according to an embodiment of the utility model;

[0032] Figure 2 This is a structural schematic diagram of a branch pipe positioning plate of a valve pipe welding fixture according to an embodiment of the utility model;

[0033] Figure 3It is a structural schematic diagram of a main pipe positioning frame of a valve pipe welding fixture according to an embodiment of the utility model;

[0034] Figure 4 The figure is a cross-sectional view of a main pipe positioning frame of a valve pipe welding fixture according to an embodiment of the utility model. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0036] The terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0037] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0038] Figure 1 The figure is a schematic structural diagram of a valve pipe welding jig according to an embodiment of the utility model. Figure 2 FIG. 2 is a schematic diagram of the structure of a branch pipe positioning plate 20 of a valve pipe welding fixture according to an embodiment of the present invention. Figure 1 As shown, in one embodiment, the valve pipe welding fixture includes at least one main pipe fixing frame 10 and at least one branch pipe positioning plate 20. Each main pipe fixing frame 10 is provided with a main pipe hole 101, and the main pipe holes 101 of each main pipe fixing frame 10 are aligned along a first direction. The main pipe holes 101 are used to pass through the main pipe of the valve pipe, and the first direction here is the axial direction of the main pipe. Figure 2As shown, the branch pipe positioning plate 20 is provided with a through hole 201 and an opening 202. The through hole 201 is aligned with the main pipe hole 101. The top of the opening 202 passes through the branch pipe positioning plate 20, and the bottom is connected to the through hole 201. At least one side wall of the opening 202 is used to form a branch pipe positioning surface 21 for placing the branch pipe of the valve pipe. The branch pipe positioning surface 21 is inclined along the second direction, which is perpendicular to the first direction and arranged at a preset angle with the vertical plane. Figure 1 As shown, in this embodiment, the number of main pipe fixing frames 10 is 3, the number of branch pipe positioning plates 20 is 1 and is arranged in close contact with the middle main pipe positioning frame. In other embodiments not shown, the number of main pipe fixing frames 10 and the number of branch pipe positioning plates 20 can be set according to needs. For example, when the main pipe is long, more main pipe fixing frames 10 are set, and when there are multiple branch pipes, multiple branch pipe fixing plates are set. There is no specific number restriction here, and there is no restriction on whether the branch pipe positioning plate 20 is in close contact with the main pipe fixing frame 10.

[0039] When in use, the main pipe is passed through the main pipe holes 101 of each main pipe fixing frame 10 in turn, and the branch pipe is placed on the branch pipe positioning plate 20 so that one end of the branch pipe contacts the main pipe, thereby keeping the main pipe and the branch pipe positioned at a certain angle, and then welding equipment is used to weld the connection between the branch pipe and the main pipe.

[0040] The valve pipe welding fixture of this embodiment includes a main pipe positioning frame and a branch pipe positioning plate 20. The main pipe positioning frame and the branch pipe positioning plate 20 can pass through the main pipe so that the main pipe is arranged horizontally along the first direction. The branch pipe positioning plate 20 is provided with a branch pipe positioning surface 21 for positioning the branch pipe. The branch pipe positioning surface 21 is an inclined surface, which can limit the branch pipe to a specific angle with the main pipe, so as to facilitate the positioning of the main pipe and the branch pipe that are not in the same horizontal plane before welding. The opening 202 of the branch pipe positioning plate 20 passes through the top surface of the branch pipe positioning plate 20, so that the convenient operation of the welding head can be ensured. This valve pipe welding fixture can ensure the positioning accuracy of the main pipe and the branch pipe, and greatly improve the welding efficiency.

[0041] In a further embodiment, Figure 2 As shown, a positioning groove 22 extending along the second direction is formed on the branch pipe positioning surface 21, and the positioning groove 22 matches the outer peripheral surface of the branch pipe so as to position the branch pipe in the first direction. The cross section of the positioning groove 22 here can be a semicircle matching the radius of the branch pipe, or can be other shapes that can position the branch pipe, such as a triangle, which is not limited here. Figure 2 In the illustrated embodiment, the opening 202 has two symmetrically arranged side surfaces for forming two branch pipe positioning surfaces 21 .

[0042] In this embodiment, a positioning groove 22 is further provided on the branch pipe positioning surface 21. The positioning groove 22 can limit the freedom of the branch pipe along the first direction, thereby making the positioning of the branch pipe more accurate.

[0043] Furthermore, by symmetrically arranging the branch pipe positioning surfaces 21 on the branch pipe positioning plate 20, each branch pipe positioning surface 21 is provided with a positioning groove 22, so that the fixture can adapt to more usage scenarios, that is, whether the branch pipe needs to be set on the left side or the right side of the main pipe, the same valve pipe welding fixture can be used for positioning, thereby improving the versatility of the fixture.

[0044] Figure 3 FIG. 1 is a schematic diagram of the structure of the main pipe positioning frame of the valve pipe welding fixture according to an embodiment of the utility model. In a further embodiment, as Figure 1 As shown, at least one main pipe fixing frame 10 is provided with a support frame 30 on its side wall. The support frame 30 is arranged to be movable in the vertical direction relative to the main pipe fixing frame 10. The top surface of the support frame 30 is used to support the valve on the main pipe. In one embodiment, the support frame 30 includes a connected vertical portion 31 and a horizontal portion 32 for supporting the valve. The vertical portion 31 is provided with a first connecting hole 301. The main pipe fixing frame 10 is provided with a waist-shaped hole 102 extending vertically (see Figure 3 ), so that the first fastener passes through the first connecting hole 301 and the waist-shaped hole 102 to position the support frame 30. Figure 3 As shown, in some embodiments, the waist-shaped hole 102 can also be configured as a countersunk hole so that the first fastener does not protrude from the side of the main pipe fixing frame 10 .

[0045] In this embodiment, by adjusting the height of the first fastener in the waist-shaped hole 102, the height of the support frame 30 relative to the main pipe fixing frame 10 can be adjusted to adapt to valves of different sizes on the main pipeline, thereby expanding the application range of the valve pipe welding fixture.

[0046] Figure 4 FIG. 1 is a cross-sectional view of a main pipe positioning frame of a valve pipe welding fixture according to an embodiment of the present utility model. Figure 4As shown, in one embodiment, the main pipe fixing frame 10 includes a main body 11, a cover 12 and an opening and closing mechanism 13. A first recess 111 is provided at the top of the main body 11. The cover 12 is located at the top of the main body 11, and a second recess is provided on the bottom surface of the cover 12. The opening and closing mechanism 13 is used to drive the cover 12 to rotate relative to the main body 11 so as to form an unlocked state and a locked state. The first recess 111 and the second recess are used to form the main pipe hole 101 in the locked state. In one embodiment, a clamping recess 112 is provided on one side of the main body 11 in the width direction. The opening and closing mechanism 13 includes a connecting member 14 and a locking mechanism 15 respectively arranged on both sides of the main body 11 in the width direction. The two ends of the connecting member 14 are respectively hinged to the main body 11 and the cover 12. The locking mechanism 15 includes a connecting component 151 and a handle 152. The top end of the connecting component 151 is hinged to the cover 12. The handle portion 152 is hinged to the bottom end of the connecting assembly 151, and one end of the handle portion 152 is provided with a hook 153 matching the engaging recess 112, and the other end of the handle portion 152 is used to withstand the operating force used to drive the handle portion 152 to rotate, so that the hook 153 clamps the engaging recess 112 or disengages from the engaging recess 112.

[0047] Figure 4 The main pipe fixing frame 10 is in a locked state, and the second recessed portion of the cover portion 12 is pressed against the upper side of the main pipe, thereby positioning the main pipe. Figure 4 By rotating the handle counterclockwise, the hook 153 can be disengaged from the engaging recess 112, so that the locking assembly is disengaged from the main body 11, and the cover 12 can be freely flipped to form an unlocked state, which facilitates the removal of the valve tube from the fixture.

[0048] The main pipe fixing frame 10 of the present embodiment is configured as an openable and closable split structure, including a main body 11, a cover portion 12 and an opening and closing mechanism 13. The setting of the opening and closing mechanism 13 can form a locking state for pressing the valve pipe and an unlocking state for facilitating the removal of the valve pipe, thereby facilitating the positioning and removal of the valve pipe on the fixture, which is conducive to improving work efficiency.

[0049] In a further embodiment, Figure 1 As shown, the valve pipe welding jig also includes a fixed base 40, and at least part of the main pipe fixing frame 10 is configured to be movable in a first direction relative to the base 40. Specifically, a movable slide groove 41 is provided at the base 40, and a second connecting hole 103 vertically aligned with the movable slide groove 41 is provided at the bottom of the main pipe fixing frame 10, so that the second fastener passes through the movable slide groove 41 and is fixed to the second connecting hole 103. Of course, in other embodiments not shown, the branch pipe fixing plate can also be configured to be movable in the first direction relative to the base 40, so that the adjustment of the jig is more flexible and adaptable to more usage scenarios.

[0050] In this embodiment, the main pipe fixing frame 10 is arranged to be movable relative to the base 40, thereby forming different support lengths in the first direction, so that the fixture can adapt to main pipes of different lengths and provide more suitable support for main pipes of different lengths.

[0051] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A valve pipe welding jig, characterized in that: include: At least one main pipe fixing frame, each of the main pipe fixing frames is provided with a main pipe hole, the main pipe holes of each of the main pipe fixing frames are aligned along a first direction, and the main pipe hole is used to pass the main pipe of the valve pipe; At least one branch pipe positioning plate is provided with a through hole and an opening, wherein the through hole is aligned with the main pipe hole, the top of the opening passes through the branch pipe positioning plate, and the bottom is connected to the through hole, and at least one side wall of the opening is used to form a branch pipe positioning surface for placing the branch pipe of the valve pipe, and the branch pipe positioning surface is inclined along a second direction, and the second direction is perpendicular to the first direction and is arranged at a preset angle to the vertical plane.

2. The valve pipe welding jig according to claim 1, characterized in that: A positioning groove extending along the second direction is formed on the branch pipe positioning surface, and the positioning groove matches the outer peripheral surface of the branch pipe so as to position the branch pipe in the first direction.

3. The valve pipe welding jig according to claim 1, characterized in that: The opening has two symmetrically arranged side surfaces for forming two branch pipe positioning surfaces.

4. The valve pipe welding jig according to claim 1, characterized in that: One side of the branch pipe positioning plate is in contact with the side surface of one of the main pipe fixing frames.

5. The valve pipe welding jig according to claim 1, characterized in that: A support frame is provided on the side wall of at least one of the main pipe fixing frames. The support frame is configured to be movable in a vertical direction relative to the main pipe fixing frame. The top surface of the support frame is used to support the valve on the main pipe.

6. The valve pipe welding jig according to claim 5, characterized in that: The support frame includes a connected vertical part and a horizontal part for supporting the valve, the vertical part is provided with a first connecting hole, and the main pipe fixing frame is provided with a waist-shaped hole extending vertically so that the support frame can be positioned by passing a first fastener through the first connecting hole and the waist-shaped hole.

7. The valve pipe welding jig according to claim 1, characterized in that: The main pipe fixing frame comprises: A main body, the top of which is provided with a first recess; A covering portion, located at the top of the main body, and a second recess is provided on the bottom surface of the covering portion; The opening and closing mechanism is used to drive the cover part to rotate relative to the main body part so as to form an unlocked state and a locked state. The first recess and the second recess are used to form the main pipe hole in the locked state.

8. The valve pipe welding jig according to claim 7, characterized in that: A snap-fitting recess is provided on one side of the main body in the width direction; The opening and closing mechanism comprises a connecting piece and a locking mechanism respectively arranged on both sides of the main body in the width direction; The two ends of the connecting member are hinged to the main body and the covering part respectively; The locking mechanism comprises: A connecting component, the top end of which is hinged to the covering portion; The handle portion is hinged to the bottom end of the connecting assembly, and one end of the handle portion is provided with a hook matching the engaging recess, and the other end of the handle portion is used to withstand the operating force used to drive the handle portion to rotate, so that the hook clamps the engaging recess or disengages from the engaging recess.

9. The valve pipe welding jig according to any one of claims 1 to 8, characterized in that: It also includes a fixed base, and at least a portion of the main pipe fixing frame is configured to be movable relative to the base along the first direction.

10. The valve pipe welding jig according to claim 9, characterized in that: The base is provided with a movable slide groove, and the bottom of the main pipe fixing frame is provided with a second connecting hole vertically aligned with the movable slide groove, so that a second fastener can be passed through the movable slide groove and then fixed to the second connecting hole.

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