Weld joint inspection ruler for pressure vessel inspection

Abstract

The utility model provides a weld joint inspection ruler for inspecting a pressure vessel, which belongs to the technical field of weld joint inspection, aims to solve the problems that the inspection efficiency is influenced due to the fact that the cleaning of a detection position takes a long time, and comprises a weld joint measurement main ruler, a height measurement ruler, an undercut depth ruler, a limiting extrusion plate, an air bag, an air exhaust port and an anti-falling protection cover, the height measuring scale is connected to the front side of the welding seam measuring main scale in a sliding manner; the undercut depth ruler is connected to the lower part of the welding seam measurement main ruler in a sliding manner; the limiting extrusion plate is fixedly connected to the upper part of the height measuring ruler and the upper part of the undercut depth ruler; the air bags are adhered to the left side and the right side of the welding seam measurement main ruler; the gas exhaust ports are formed in the left side and the right side of the welding seam measurement main ruler; the anti-falling protection covers are arranged on the left side and the right side of the welding seam measurement main ruler in a sleeving manner; according to the utility model, dust on the welding seam can be automatically cleaned, a large amount of time is saved, and the inspection efficiency of the welding seam is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of weld inspection, and more specifically, it particularly relates to a weld inspection ruler for pressure vessel inspection. Background Technique

[0002] In order to ensure the welding quality and guarantee the safe operation of pressure vessels, it is necessary to use a weld inspection ruler to inspect the welds of pressure vessels. A weld inspection ruler is a measuring tool composed of parts such as a main ruler, a height ruler, a root penetration depth ruler, and a multi-purpose ruler. It is mainly used to detect various groove angles, heights, widths, gaps, and root penetration depths of welds. When measuring the weld height, first align the main ruler and the root penetration depth ruler with the part and tighten the screws, then slide the height ruler to contact the weld point, and the indicated value of the height ruler is the weld height.

[0003] For example, CN221445027U discloses a weld inspection ruler for pressure vessel inspection, which includes a main ruler. Two sliding grooves are opened on the main ruler, and a height ruler and a depth ruler are respectively slidably installed in the two sliding grooves. The depth ruler is located in front of the height ruler. Straight grooves are opened on both the height ruler and the depth ruler. A screw rod passing through the straight grooves is fixedly connected to the main ruler, and a locking nut is threadedly connected to the screw rod. Concave plates fixedly connected to the main ruler are arranged on the upper sides of the height ruler and the depth ruler; release the fixation of the locking nut, drive the pull rod and the pressing plate to move upward through the handle, so that the height ruler and the depth ruler can freely move in the sliding grooves. After adjusting the positions of the height ruler or the depth ruler, release the handle, the pressing plate pre-fixes the height ruler and the depth ruler, and then the locking nut is used to secondarily fix the height ruler and the depth ruler. By setting the pre-fixation, it is avoided that the inspection ruler shakes when the locking nut is rotated, which affects the recorded value.

[0004] In order to avoid excessive dust adhering to the outside of the weld and affecting the inspection accuracy, it is necessary to clean the detection position before measuring the weld. This not only causes a large labor burden on the inspection personnel, but also takes a long time, affecting the inspection efficiency. And in the case of cracks on the weld surface, the dust is easily swept into the cracks to cover up the defects of the weld, affecting the accuracy of the inspection results. Content of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides a weld inspection ruler for pressure vessel inspection to solve the problem that in order to avoid excessive dust adhering to the outside of the weld and affecting the inspection accuracy, it is necessary to clean the detection position before measuring the weld. This not only causes a large labor burden on the inspection personnel, but also takes a long time, affecting the inspection efficiency. And in the case of cracks on the weld surface, the dust is easily swept into the cracks to cover up the defects of the weld, affecting the accuracy of the inspection results.

[0006] The purpose and efficacy of a weld inspection ruler for pressure vessel inspection in the present utility model are achieved by the following specific technical means:

[0007] A weld inspection ruler for pressure vessel inspection includes a main weld measurement ruler, a height measurement ruler, a root penetration depth ruler, a limit extrusion plate, a limit structure, an airbag, a gas discharge port, a positioning structure, and an anti-drop protection cover; the height measurement ruler is slidably connected to the front side of the main weld measurement ruler left and right; the root penetration depth ruler is slidably connected to the lower part of the main weld measurement ruler left and right; there are two limit extrusion plates, and the two limit extrusion plates are respectively fixedly connected to the upper part of the height measurement ruler and the upper part of the root penetration depth ruler; the limit structure is arranged on the outer side of the main weld measurement ruler; there are four airbags, and the outer sides of the four airbags are respectively adhered to the left and right sides of the main weld measurement ruler; there are four gas discharge ports, and the four gas discharge ports are evenly distributed and opened on the left and right sides of the main weld measurement ruler, and the gas discharge port has a structure that is thin in the middle and thick at both ends; the positioning structure is arranged on the outer side of the main weld measurement ruler; there are two anti-drop protection covers, and the two anti-drop protection covers are respectively sleeved on the left and right sides of the main weld measurement ruler.

[0008] Further, the positioning structure includes a sliding installation block, a limit connection groove, and a reset elastic member; there are four sliding installation blocks, and the four sliding installation blocks are respectively slidably connected to the upper and lower sides of the two anti-drop protection covers up and down; there are four limit connection grooves, and the four limit connection grooves are respectively opened on the inner sides of the four sliding installation blocks; there are four reset elastic members, and the four sliding installation blocks are respectively elastically connected to the two anti-drop protection covers through the four reset elastic members.

[0009] Further, the positioning structure further includes a positioning connecting member and a limit sliding rod; there are two positioning connecting members, and the two positioning connecting members are respectively rotatably connected to the front sides of the two anti-drop protection covers; there are four limit sliding rods, and the four limit sliding rods are respectively fixedly connected to the upper and lower sides of the two positioning connecting members, and the four limit sliding rods are respectively slidably connected to the four limit connection grooves.

[0010] Further, the positioning structure further includes a position fixing hole and a position fixing insertion rod; there are four position fixing holes, and the four position fixing holes are respectively opened on the left and right sides of the main weld measurement ruler; there are four position fixing insertion rods, and the four position fixing insertion rods are respectively fixedly connected to the rear sides of the four sliding installation blocks.

[0011] Furthermore, the limiting structure includes a position fixing bolt and a multi-purpose measuring ruler; a plurality of the position fixing bolts are provided, and the plurality of position fixing bolts are all threadedly connected to the outside of the main weld measuring ruler; the multi-purpose measuring ruler is rotatably connected to the rear side of the main weld measuring ruler.

[0012] Furthermore, the limiting structure further includes wear-resistant measuring heads and guiding limiting sliding grooves; two wear-resistant measuring heads are provided, and the two wear-resistant measuring heads are respectively bolted to the left and right sides of the height measuring ruler; two guiding limiting sliding grooves are provided, and the two guiding limiting sliding grooves are respectively opened in the middle of the height measuring ruler and the middle of the undercut depth ruler, and the guiding limiting sliding grooves are slidably connected to the position fixing bolts.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] In the present utility model, the movement of the height measuring ruler or the undercut depth ruler enables air to automatically blow out from the gas discharge port to clean the dust on the weld, effectively avoiding the inconvenience of manual cleaning, reducing the labor burden of the inspection personnel, saving a large amount of time, improving the inspection efficiency of the weld, and at the same time being able to blow out the dust hidden in the cracks on the weld surface, ensuring the inspection effect and improving the accuracy of the inspection result. When the wear-resistant measuring heads are worn after long-term use, new wear-resistant measuring heads can be replaced, effectively avoiding the situation of replacing the entire weld inspection ruler, effectively improving the practicability of the weld inspection ruler, reducing resource waste, and protecting the measuring end of the weld inspection ruler through the anti-drop protection cover after the use of the weld inspection ruler, avoiding the damage of the measuring end of the weld inspection ruler due to collision, and effectively improving the service life of the weld inspection ruler. Description of the Drawings

[0015] Figure 1 is the overall structural schematic diagram of the present utility model.

[0016] Figure 2 is the structural schematic diagram of the height measuring ruler of the present utility model.

[0017] Figure 3 is the position schematic diagram of the multi-purpose measuring ruler of the present utility model.

[0018] Figure 4 is the structural schematic diagram of the limiting pressing plate, the airbag and the gas discharge port of the present utility model.

[0019] Figure 5 is the structural schematic diagram of the anti-drop protection cover of the present utility model.

[0020] Figure 6 is the position relationship schematic diagram of the limiting connection groove and the limiting sliding rod of the present utility model.

[0021] In the figure, the correspondence between the component names and the drawing numbers is as follows:

[0022] 1. Main weld measurement ruler; 101. Position fixing hole; 102. Position fixing bolt; 103. Multifunctional measurement ruler; 2. Height measurement ruler; 201. Wear-resistant measurement head; 202. Guide and limit sliding groove; 3. Undercut depth ruler; 4. Limit extrusion plate; 5. Airbag; 6. Gas discharge port; 7. Anti-drop protection cover; 701. Sliding installation block; 702. Limit connection groove; 703. Reset elastic part; 704. Positioning connection part; 705. Limit sliding rod; 706. Position fixing insertion rod. Specific implementation mode

[0023] The following further describes the implementation mode of the present utility model in detail with reference to the drawings and embodiments. Embodiment

[0024] As shown in Figure 1 to Figure 4 shown:

[0025] The present utility model provides a weld inspection ruler for pressure vessel inspection, including a main weld measurement ruler 1, a height measurement ruler 2, an undercut depth ruler 3, a limit extrusion plate 4, a limit structure, an airbag 5 and a gas discharge port 6; the height measurement ruler 2 is slidably connected to the front side of the main weld measurement ruler 1; the undercut depth ruler 3 is slidably connected to the lower part of the main weld measurement ruler 1; there are two limit extrusion plates 4, and the two limit extrusion plates 4 are respectively fixedly connected to the upper parts of the height measurement ruler 2 and the undercut depth ruler 3; the limit structure is arranged on the outer side of the main weld measurement ruler 1; there are four airbags 5, and the outer sides of the four airbags 5 are respectively bonded to the left and right sides of the main weld measurement ruler 1; there are four gas discharge ports 6, and the four gas discharge ports 6 are evenly distributed and opened on the left and right sides of the main weld measurement ruler 1, and the gas discharge port 6 has a structure that is thin in the middle and thick at both ends.

[0026] Among them, the limit structure includes a position fixing bolt 102 and a multifunctional measurement ruler 103; there are multiple position fixing bolts 102, and the multiple position fixing bolts 102 are all threadedly connected to the outer side of the main weld measurement ruler 1; the multifunctional measurement ruler 103 is rotatably connected to the rear side of the main weld measurement ruler 1.

[0027] Among them, the limit structure further includes a wear-resistant measurement head 201 and a guide and limit sliding groove 202; there are two wear-resistant measurement heads 201, and the two wear-resistant measurement heads 201 are respectively bolted to the left and right sides of the height measurement ruler 2; there are two guide and limit sliding grooves 202, and the two guide and limit sliding grooves 202 are respectively opened in the middle parts of the height measurement ruler 2 and the undercut depth ruler 3, and the guide and limit sliding groove 202 is slidably connected to the position fixing bolt 102.

[0028] Specific usage and function of this embodiment: When measuring the weld of a pressure vessel, first place the main weld measuring ruler 1 against the surface of the pressure vessel, then slide the height measuring ruler 2 so that the wear-resistant measuring head 201 contacts the weld. At this time, tighten the position fixing bolt 102 to fix the position of the height measuring ruler 2 and read the value to complete the measurement. Similarly, slide the undercut depth ruler 3 so that the undercut depth ruler 3 abuts against the undercut of the weld and the pressure vessel to measure the undercut depth of the weld. The guiding and limiting sliding groove 202 can guide and position the height measuring ruler 2 and the undercut depth ruler 3. The multi-purpose measuring ruler 103 can measure other values of the weld. When sliding the height measuring ruler 2 or the undercut depth ruler 3, the limiting extrusion plate 4 will slide simultaneously with the height measuring ruler 2 or the undercut depth ruler 3. At this time, the limiting extrusion plate 4 will squeeze the airbag 5, causing air to blow out from the gas discharge port 6. The structure of the gas discharge port 6 being the same as that of the Venturi tube will enhance the air flow effect, causing the discharged gas to blow away the dust at the weld measurement location to ensure the inspection accuracy of the weld. Embodiment

[0029] As shown in the Figure 1 appendix Figure 6 figures:

[0030] Based on Embodiment 1, it further includes a positioning structure and a anti-drop protection cover 7; the positioning structure is arranged outside the main weld measuring ruler 1; there are two anti-drop protection covers 7, and the two anti-drop protection covers 7 are respectively sleeved on the left and right sides of the main weld measuring ruler 1.

[0031] Among them, the positioning structure includes a sliding installation block 701, a limiting connection groove 702 and a reset elastic member 703; there are four sliding installation blocks 701, and the four sliding installation blocks 701 are respectively connected to the upper and lower sides of the two anti-drop protection covers 7 in a sliding manner; there are four limiting connection grooves 702, and the four limiting connection grooves 702 are respectively opened on the inner sides of the four sliding installation blocks 701; there are four reset elastic members 703, and the four sliding installation blocks 701 are respectively elastically connected to the two anti-drop protection covers 7 through the four reset elastic members 703.

[0032] Among them, the positioning structure further includes a positioning connecting member 704 and a limiting sliding rod 705; there are two positioning connecting members 704, and the two positioning connecting members 704 are respectively rotatably connected to the front sides of the two anti-drop protection covers 7; there are four limiting sliding rods 705, and the four limiting sliding rods 705 are respectively fixedly connected to the upper and lower sides of the two positioning connecting members 704, and the four limiting sliding rods 705 are respectively slidably connected to the four limiting connection grooves 702.

[0033] Among them, the positioning structure further includes position fixing holes 101 and position fixing insertion rods 706; there are four position fixing holes 101, and the four position fixing holes 101 are respectively opened on the left and right sides of the main weld measurement ruler 1; there are four position fixing insertion rods 706, and the four position fixing insertion rods 706 are respectively fixedly connected to the rear sides of the four sliding mounting blocks 701.

[0034] The specific usage method and function of this embodiment: After the weld inspection ruler is used, rotate the positioning connecting piece 704 to make the limit sliding rod 705 slide along the limit connecting groove 702. After the limit connecting groove 702 is stressed, the sliding mounting block 701 will drive the position fixing insertion rod 706 to slide outwards. At this time, put the anti-drop protection cover 7 on the outside of the main weld measurement ruler 1, release the positioning connecting piece 704, and the sliding mounting block 701 will drive the position fixing insertion rod 706 to reset and insert into the position fixing hole 101 under the action of the reset elastic member 703 to fix the position of the anti-drop protection cover 7.

[0035] In this article, the following points need to be noted:

[0036] 1. The attached drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0037] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0038] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A weld inspection ruler for pressure vessel inspection, comprising a weld measurement ruler (1), a height measurement ruler (2), an undercut depth ruler (3), a limit extrusion plate (4), a limit structure, an air bag (5), a gas exhaust port (6), a positioning structure and an anti-fall protection cover (7); the height measurement ruler (2) is slidably connected to the front side of the weld measurement ruler (1); the undercut depth ruler (3) is slidably connected to the lower part of the weld measurement ruler (1); the characteristics are: Two limit extrusion plates (4) are provided, and the two limit extrusion plates (4) are respectively fixedly connected to the upper part of the height measuring scale (2) and the upper part of the undercut depth scale (3); the limit structure is arranged on the outer side of the weld seam measuring main scale (1); four air bags (5) are provided, and the outer sides of the four air bags (5) are respectively bonded to the left and right sides of the weld seam measuring main scale (1); four gas exhaust ports (6) are provided, and the four gas exhaust ports (6) are evenly distributed and opened on the left and right sides of the weld seam measuring main scale (1), and the gas exhaust ports (6) are of a structure with a thin middle and thick ends; the positioning structure is arranged on the outer side of the weld seam measuring main scale (1); two anti-fall protection covers (7) are provided, and the two anti-fall protection covers (7) are respectively sleeved on the left and right sides of the weld seam measuring main scale (1).

2. A weld inspection ruler for pressure vessel inspection as claimed in claim 1, characterized in that: The limiting structure comprises a position fixing bolt (102) and a multi-purpose measuring ruler (103); a plurality of the position fixing bolts (102) are provided, and the plurality of the position fixing bolts (102) are all threadedly connected to the outside of the weld seam measuring main ruler (1); and the multi-purpose measuring ruler (103) is rotatably connected to the rear side of the weld seam measuring main ruler (1).

3. A weld inspection ruler for pressure vessel inspection as claimed in claim 2, characterized in that: The limiting structure further comprises a wear-resistant measuring head (201) and a guide limiting slide groove (202); two wear-resistant measuring heads (201) are provided, and the two wear-resistant measuring heads (201) are respectively bolted to the left and right sides of the height measuring ruler (2); two guide limiting slide grooves (202) are provided, and the two guide limiting slide grooves (202) are respectively opened in the middle of the height measuring ruler (2) and the middle of the bite depth ruler (3), and the guide limiting slide grooves (202) are slidably connected to the position fixing bolts (102).

4. A weld inspection ruler for pressure vessel inspection as claimed in claim 1, characterized in that: The positioning structure comprises a sliding mounting block (701), a limiting connection groove (702) and a reset elastic member (703); four sliding mounting blocks (701) are provided, and the four sliding mounting blocks (701) are respectively slidably connected to the upper and lower sides of the two anti-fall protection covers (7); four limiting connection grooves (702) are provided, and the four limiting connection grooves (702) are respectively opened on the inner sides of the four sliding mounting blocks (701); four reset elastic members (703) are provided, and the four sliding mounting blocks (701) are respectively elastically connected to the two anti-fall protection covers (7) through the four reset elastic members (703).

5. A weld inspection ruler for pressure vessel inspection as claimed in claim 4, characterized in that: The positioning structure further comprises a positioning connection member (704) and a limiting slide bar (705); two positioning connection members (704) are provided, and the two positioning connection members (704) are respectively rotatably connected to the front sides of the two anti-fall protection covers (7); four limiting slide bars (705) are provided, and the four limiting slide bars (705) are respectively fixedly connected to the upper and lower sides of the two positioning connection members (704), and the four limiting slide bars (705) are respectively slidably connected to the four limiting connection grooves (702).

6. A weld inspection ruler for pressure vessel inspection as claimed in claim 5, characterized in that: The positioning structure further comprises a position fixing hole (101) and a position fixing plug rod (706); four position fixing holes (101) are provided, and the four position fixing holes (101) are respectively opened on the left and right sides of the weld seam measuring main scale (1); four position fixing plug rods (706) are provided, and the four position fixing plug rods (706) are respectively fixedly connected to the rear sides of four sliding mounting blocks (701).

Images