Test pile door cover welding auxiliary tool

Abstract

The utility model discloses an auxiliary welding tool for a test pile door cover. The auxiliary welding tool comprises at least one group of positioning mounting pieces, the positioning mounting piece comprises a supporting piece, the supporting piece is arranged in an arc shape, and the arc bending radian of the supporting piece is matched with the bending radian of the peripheral side wall of the test pile body; a fixing piece is arranged above the top end of the supporting piece, an arc-shaped clamping groove is formed in one side of the fixing piece, the axis direction of the clamping groove is consistent with the axis direction of the supporting piece, and the opening end of the clamping groove and the opening end of the supporting piece face the same direction. The arc bending radian of the clamping groove is matched with the bending radian of the peripheral side wall of the door cover pin. After the door cover of the test pile is installed, the gap between the pin of the door cover and the pile body of the test pile can be kept uniform and consistent, and friction between the connecting end of the door cover and the side wall of the pile body of the test pile is avoided, so that abrasion of protective paint is avoided, and the service life of the test pile is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the field of test piles, in particular to a test pile door cover welding auxiliary tooling. Background Art

[0002] During the cathodic protection process of pipelines, potential test piles are often used to test the potential of the pipelines. Figure 1 As shown, the potential test pile is provided with a test pile door cover 2 to protect the conductive test head in the test pile body 1. When testing the pipeline potential, the test pile door cover 2 is opened to expose the conductive test head.

[0003] Patent No. CN201721897076.4 discloses a potential test pile, on which a door cover is hingedly connected to the test pile body to realize the opening and closing action of the door cover; however, the hinged structure is usually realized by rotating a column pin. At present, when installing the door cover, one end of the column pin is first welded to the door cover, and then the other end of the column pin is welded to the test pile body; since the column pin is small in size and not easy to hold, its welding operation is inconvenient, which reduces the installation efficiency of the test pile door cover; and, the welding operation is performed in a handheld manner, resulting in an uneven gap between the rotating end of the column pin and the test pile body after welding. When opening and closing the test pile door cover, friction will be generated between the connecting end of the door cover and the side wall of the test pile body, and the friction will wear off the protective paint coated on the outer wall of the test pile body, causing the test pile body to rust, etc., seriously affecting the service life of the test pile. Utility Model Content

[0004] The utility model aims to solve the above problems and provide a test pile door cover welding auxiliary tooling which has a simple structure and can effectively improve the welding efficiency of the test pile door cover.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] A test pile door cover welding auxiliary tooling comprises at least one group of positioning and mounting parts; the positioning and mounting parts comprise a support part, the support part is arranged in an arc shape, and the arc curvature of the support part is adapted to the curvature of the outer peripheral side wall of the test pile body; a fixing part is arranged above the top end of the support part, and an arc-shaped clamping groove is arranged on one side of the fixing part, the axial direction of the clamping groove is consistent with the axial direction of the support part, the opening end of the clamping groove is in the same direction as the opening end of the support part, and the arc curvature of the clamping groove is adapted to the curvature of the outer peripheral side wall of the door cover column pin.

[0007] Furthermore, the support member is in the shape of an arc plate, the fixing member and the support member are integrally formed, and the top end wall of the support member and the side wall of one side of the fixing member together form a clamping groove.

[0008] Furthermore, the positioning and mounting member is made of metal, and the arc-shaped curved structure of the supporting member and the arc-shaped curved structure of the clamping groove are both elastic.

[0009] Furthermore, the arc curvature of the support member and the arc curvature of the clamping groove are both not less than 120 degrees.

[0010] Furthermore, there are four groups of positioning mounting parts, which are arranged in sequence and coaxially arranged; the outer side walls of the support parts of the four groups of positioning mounting parts are fixedly connected to the handpiece.

[0011] Furthermore, among the four groups of positioning and mounting parts arranged in sequence, reinforcement pieces are fixedly connected between the first group of positioning and mounting parts and between the third group of positioning and mounting parts and the fourth group of positioning and mounting parts.

[0012] Furthermore, the axial spacing between the first group of positioning mounting parts and the second group of positioning mounting parts is consistent with the axial spacing between the third group of positioning mounting parts and the fourth group of positioning mounting parts, and the axial spacing value is not greater than the axial length value of the door cover pin.

[0013] Compared with the prior art, the utility model has the following advantages and positive effects:

[0014] When the utility model is performing the door cover installation operation, the support member is firstly sleeved on the outside of the test pile body and the top end of the support member is moved to the vicinity of the edge of the test port of the test pile body, and then the door cover column pin is embedded in the clamping groove of the fixing member; then the test pile door cover is fitted to the outside of the test port of the test pile, and finally the edge of the test pile door cover is brought into contact with the door cover column pin and the door cover column pin is welded; it is convenient for positioning and holding the door cover column pin, and the installation operation of the test pile door cover can be quickly realized, thereby improving the installation efficiency of the test pile door cover; and, under the positioning effect of the auxiliary tooling, after welding, the gap between the door cover column pin and the test pile body can be kept uniform, thereby avoiding friction between the connecting end of the door cover and the side wall of the test pile body, thereby ensuring that the protective paint coated on the outside of the test pile body is not affected by the opening and closing action of the door cover, thereby effectively extending the service life of the test pile and further improving the use effect of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1It is a structural diagram of a test pile in the prior art;

[0017] Figure 2 It is a schematic diagram of the structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the installation process of the utility model;

[0019] Figure 4 This is an installation effect diagram of the utility model. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the utility model.

[0021] like Figure 2 , Figure 3 and Figure 4 As shown, this embodiment discloses a test pile door cover welding auxiliary tooling, including four groups of positioning mounting parts; the four groups of positioning mounting parts are arranged in sequence and the four groups of positioning mounting parts are coaxially arranged; among the four groups of positioning mounting parts arranged in sequence, reinforcement parts 6 are fixedly connected between the first group of positioning mounting parts and the second group of positioning mounting parts, and between the third group of positioning mounting parts and the fourth group of positioning mounting parts.

[0022] The axial spacing between the first group of positioning mounting parts and the second group of positioning mounting parts is consistent with the axial spacing between the third group of positioning mounting parts and the fourth group of positioning mounting parts, and the axial spacing value is not greater than the axial length value of the door cover column pin 7.

[0023] The positioning installation member includes a support member 4, which is arranged in an arc plate shape, and the arc curvature of the support member 4 is adapted to the curvature of the outer peripheral side wall of the test pile body 1; the arc curvature of the support member 4 is 180 degrees, and the right end of the arc structure of the support member 4 is arranged as an open end;

[0024] A fixing part 5 is integrally formed above the top end of the support member 4, and a side wall of the fixing part 5 and the top end wall of the support member 4 are combined to form a snap-in groove 501. The axial direction of the snap-in groove 501 is consistent with the axial direction of the support member 4, and the axial length of the snap-in groove 501 is smaller than the end length of the fixed end or the rotating end of the door cover column pin 7; the arc curvature of the snap-in groove 501 is compatible with the curvature of the outer peripheral side wall of the door cover column pin 7; the arc curvature of the snap-in groove 501 is 180 degrees, and the right end of the arc structure of the snap-in groove 501 is set as an open end.

[0025] The positioning and mounting member is made of metal, and the arc bending structure of the support member 4 and the arc bending structure of the clamping groove 501 are both elastic. The elastic performance can make the support member clamped on the outside of the test pile body, and at the same time, the clamping groove can clamp the door cover column pin, which improves the connection stability between the auxiliary tooling and the test pile body and the door cover column pin, thereby facilitating the installation operation of the door cover; under the elastic performance, the arc bending curvature of the support member and the clamping groove can be appropriately reduced to facilitate the clamping with the test pile body and the door cover column pin.

[0026] The outer side walls of the support members 4 in the four groups of positioning and mounting members are fixedly connected to the handpiece 3; the handpiece is used to connect and position the four groups of positioning and mounting members, and at the same time facilitates the holding operation of the four groups of positioning and mounting members during welding.

[0027] When installing the test pile door cover 2, hold the hand piece 3 and sleeve the support piece 4 of the four sets of positioning installation pieces on the outside of the test pile body 1 (such as Figure 3 Then, the side walls of the two door cover pins 7 are respectively embedded in the clamping grooves 501 in the four sets of positioning and mounting parts. Next, the test pile door cover 2 is covered on the outside of the test port 101 of the test pile body 1 and the edge of the test pile door cover 2 is in contact with the two door cover pins 7. Finally, the fixed end of the door cover pin 7 is welded to the test pile body 1, and the rotating end of the door cover pin 7 is welded to the test pile door cover 2 (as shown in FIG. Figure 4 As shown); Of course, in actual operation, after the door cover pin is embedded in the clamping groove, the fixed end of the door cover pin can be directly welded to the test pile body, and then the test pile door cover and the rotating end of the door cover pin can be welded. In this way, the installation operation of the test pile door cover can be completed by one person, saving certain human resources.

[0028] When the utility model is performing the door cover installation operation, the support member is firstly sleeved on the outside of the test pile body and the top end of the support member is moved to the vicinity of the edge of the test port of the test pile body, and then the door cover column pin is embedded in the clamping groove of the fixing member; then the test pile door cover is fitted to the outside of the test port of the test pile, and finally the edge of the test pile door cover is brought into contact with the door cover column pin and the door cover column pin is welded; it is convenient for positioning and holding the door cover column pin, and the installation operation of the test pile door cover can be quickly realized, thereby improving the installation efficiency of the test pile door cover; and, under the positioning effect of the auxiliary tooling, after welding, the gap between the door cover column pin and the test pile body can be kept uniform, thereby avoiding friction between the connecting end of the door cover and the side wall of the test pile body, thereby ensuring that the protective paint coated on the outside of the test pile body is not affected by the opening and closing action of the door cover, thereby effectively extending the service life of the test pile and further improving the use effect of the utility model.

Claims

1. A test pile door cover welding auxiliary tooling, characterized in that: The test pile door cover welding auxiliary tooling includes at least one group of positioning and mounting parts; the positioning and mounting parts include a support part, which is arranged in an arc shape, and the arc curvature of the support part is adapted to the curvature of the outer peripheral side wall of the test pile body; a fixing part is arranged above the top end of the support part, and an arc-shaped clamping groove is arranged on one side of the fixing part, the axial direction of the clamping groove is consistent with the axial direction of the support part, the opening end of the clamping groove is in the same direction as the opening end of the support part, and the arc curvature of the clamping groove is adapted to the curvature of the outer peripheral side wall of the door cover column pin.

2. The test pile door cover welding auxiliary tooling according to claim 1, characterized in that: The support member is in the shape of an arc plate, the fixing member and the support member are integrally formed, and the top end wall of the support member and the side wall of one side of the fixing member are combined to form a clamping groove.

3. The test pile door cover welding auxiliary tooling according to claim 1, characterized in that: The positioning and mounting member is made of metal, and the arc-bending structure of the supporting member and the arc-bending structure of the clamping groove are both elastic.

4. The test pile door cover welding auxiliary tooling according to claim 1, characterized in that: The arc curvature of the supporting member and the arc curvature of the clamping groove are both not less than 120 degrees.

5. The test pile door cover welding auxiliary tooling according to claim 1, characterized in that: There are four groups of positioning mounting parts, which are arranged in sequence and coaxially arranged; the outer side walls of the support parts of the four groups of positioning mounting parts are fixedly connected to the handpiece.

6. The test pile door cover welding auxiliary tooling as claimed in claim 5, characterized in that: Among the four groups of positioning and mounting parts arranged in sequence, reinforcement parts are fixedly connected between the first group of positioning and mounting parts and between the third group of positioning and mounting parts and the fourth group of positioning and mounting parts.

7. The test pile door cover welding auxiliary tooling according to claim 6, characterized in that: The axial spacing between the first group of positioning mounting parts and the second group of positioning mounting parts is consistent with the axial spacing between the third group of positioning mounting parts and the fourth group of positioning mounting parts, and the axial spacing value is not greater than the axial length value of the door cover pin.

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