Pressure resistance test sealing tool for blind end cover

Abstract

The utility model discloses a pressure-resistant test sealing tool for a blind end cover, which comprises a test tool body and a polyurethane gasket, a blind end cover body is connected with an internal clamping groove of the test tool body, the outer side of the polyurethane gasket is arranged between the test tool body and a clamping plate, and the clamping plate is connected with the blind end cover body. The outer side of the polyurethane gasket is tightly attached to the outer side of the lower end of the clamping plate, a clamping groove in the lower side of the outer end of the polyurethane gasket is connected with a second arc-shaped protruding block, and a clamping groove in the lower side of the outer end of the vacuum rubber gasket is connected with a first arc-shaped protruding block. The pressure-resistant test sealing tool for the blind end cover can ensure uniform distribution of pressure on the blind end cover, prevents local extrusion of the blind end cover and influence on pressure-resistant test data of the blind end cover, and can prevent the blind end cover from popping up to drive a sealing part to move after detection is finished. As a result, a gasket for thread protection needs to be continuously adjusted during subsequent pressure resistance detection of the blind end cover, the water flow opening of the blind end cover can be quickly decompressed or sealed, and the blind end cover is relatively convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of blind end cap technology, specifically a pressure resistance test sealing fixture for blind end caps. Background Technology

[0002] Blind end caps need to withstand the pressure of the internal medium in sealed pipelines, such as high temperature or frequent temperature fluctuations. Their strength may decrease due to material defects or manufacturing errors. The sealing performance of blind end caps determines the sealing performance inside the pipeline. After production, blind end caps must pass certain pressure testing standards before they can be used with sealing equipment. There are various pressure resistance testing sealing fixtures for blind end caps on the market.

[0003] However, conventional pressure testing sealing fixtures for blind end caps are not convenient for overall positioning of the blind end cap. Therefore, when only the top of the blind end cap is squeezed, the pressure test results may be inaccurate. It is also not convenient to quickly position the gasket used to protect the threads of the blind end cap. As a result, if the gasket cannot be positioned after installation, the gasket position may be incorrect, affecting the protective effect on the outer threads of the blind end cap. Furthermore, it is not convenient to quickly open and close the water flow channel of the blind end cap. As a result, when pressure relief is required, the water flow channel may be severely blocked, making it impossible to remove quickly. Therefore, we propose a pressure testing sealing fixture for blind end caps to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide a pressure resistance test sealing fixture for blind end caps, to solve the problems mentioned in the background art. These fixtures are not convenient for overall positioning of the blind end cap, which can lead to inaccurate pressure test results when only the top of the blind end cap is squeezed. They also make it difficult to quickly position the gasket used to protect the threads of the blind end cap, resulting in improper gasket placement after installation, affecting the protective effect on the outer threads of the blind end cap. Furthermore, they hinder the quick opening and closing of the water flow channel of the blind end cap, leading to severe blockage of the water flow channel and difficulty in quick removal when pressure relief is needed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure resistance test sealing fixture for blind end caps, comprising:

[0006] The test fixture body has an internal slot connected to a blind end cap body.

[0007] Also includes:

[0008] The lower inner side of the blind end cap body is tightly fitted with a clamping plate, and the outer side of the clamping plate is rotatably connected to a connecting plate. The lower outer side of the clamping plate has a fixing block.

[0009] The utility model provides a polyurethane gasket, the outer side of the polyuretanegasket is installed between test tool body and clamping plate, and the outer side of the polyurethane gasket is provided with limiting structure for facilitating quick positioning, wherein the limiting structure comprises vacuum rubber pad, first arc-shaped lug and second arc-shaped lug, the lower end of the outer end of the polyurethane gasket is connected with the second arc-shaped lug through the clamping groove, and the lower end of the polyurethane gasket is tightly attached to the vacuum rubber pad, the lower end of the outer end of the vacuum rubber pad is connected with the first arc-shaped lug through the clamping groove.

[0010] The lower end of the polyurethane gasket is provided with a plug for quickly opening and closing the water channel.

[0011] Preferably, the lower end of the connecting plate is fixedly connected with the first spring, the lower end of the first spring is fixedly connected with the positioning column, the lower end of the positioning column is provided with the test tool body, and the lower end of the positioning column is fixedly connected in the groove of the test tool body through the screw, and the outer end of the clamping plate is provided with the polyurethane gasket.

[0012] Preferably, the middle lower side of the blind end cover body is tightly attached to the connecting plate, and the upper end of the blind end cover body is tightly attached to the pressing plate, and the pressing plate is the pressing head of the screw rod lifter.

[0013] Preferably, the outer side of the first arc-shaped lug is fixedly connected with the test tool body, the upper end of the test tool body is fixedly connected with the second arc-shaped lug on the inner side, and the lower end of the test tool body is rotatably connected with the rotating column on the inner side.

[0014] Preferably, the outer side of the plug is fixedly connected with the fixed plate, the upper end of the fixed plate is fixedly connected with the second spring on the left side, the inner side of the second spring is fixedly connected with the baffle, the inner side of the baffle is fixedly connected with the rotating column, and the outer side of the rotating column is slidably connected with the fixed plate.

[0015] Preferably, the inner side of the plug is clampingly connected with the water inlet and the water outlet respectively, the outer side of the water inlet is provided with the test tool body, and the right end of the test tool body is provided with the water outlet on the inner side.

[0016] Compared with the prior art, the utility model has the beneficial effects that: the blind end cover is sealed by the pressure test tool, the pressure received by the blind end cover is evenly distributed, local extrusion of the blind end cover is avoided, the pressure detection data of the blind end cover is not affected, the external thread of each blind end cover is perfectly protected during pressure detection, the blind end cover is not ejected to move the sealing part after detection, the thread protection pad needs to be continuously adjusted during subsequent pressure detection of the blind end cover, the water flow opening of the blind end cover can be quickly depressurized or sealed, and the utility model is convenient to use.

[0017] 1. The blind end cover body, connecting plate and clamping plate are provided. When the blind end cover body is pressed downward, the lower middle part of the blind end cover body gradually presses against the connecting plate. At this time, the first spring fixedly connected to the lower end of the first spring is under pressure and deforms. This causes the clamping plate rotatably connected to the lower end of the connecting plate to slide outward until the outer side of the clamping plate is tightly attached to the lower end of the blind end cover body. This can evenly distribute the pressure in different positions of the blind end cover and avoid local pressure.

[0018] 2. The test fixture is equipped with a first arc-shaped protrusion, a polyurethane gasket, and a second arc-shaped protrusion. By setting the first arc-shaped protrusion and the second arc-shaped protrusion inside the test fixture body, and connecting the vacuum rubber gasket to the outer groove of the first arc-shaped protrusion, and connecting the polyurethane gasket to the outer groove of the second arc-shaped protrusion, the polyurethane gasket and the vacuum rubber gasket remain in the groove after the blind end cover body is released from the pressure on the polyurethane gasket. This can prevent the blind end cover from interfering with the position of the thread protection gasket when it pops out after losing its seal.

[0019] 3. It is equipped with a clamping plate, a vacuum rubber gasket and a polyurethane gasket. The clamping plate slides outward on the outside of the fixing block from the lower outer side, so that the clamping plate compresses the blind end cover body, the vacuum rubber gasket and the polyurethane gasket. After the clamping plate slides inward on the outside of the fixing block, the clamping plate disengages from the compression of the blind end cover body, the vacuum rubber gasket and the polyurethane gasket, which can increase the sealing performance of the threaded gasket of the blind end cover.

[0020] 4. It is equipped with an outlet, a plug and a fixing plate. By pushing the fixing plate outward, the plug is disengaged from the slot between the inlet and outlet. At this time, the second spring fixedly connected to the inner side of the upper end of the fixing plate is under pressure and slides outward on the outer side of the rotating column, which can quickly release the pressure of the blind end box.

[0021] 5. It is equipped with a plug, a fixing plate and a rotating column. By pushing the fixing plate outward, the fixing plate slides outward on the outside of the rotating column. After the inner end of the plug is disengaged from the slot between the water inlet or outlet, the rotating column is flipped upward, which causes the plug to flip upward, making it easy to pour water into the test fixture body. Attached Figure Description

[0022] Figure 1 This is a front view structural diagram of the present invention;

[0023] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0024] Figure 3 This is a bottom view cross-sectional structural diagram of the blind end cap body, connecting plate, and clamping plate connection of this utility model.

[0025] Figure 4The utility model discloses a connecting plate, first spring and clamping plate connection side view three-dimensional structure schematic diagram,

[0026] Figure 5 The utility model discloses test frock body, first arc convex block and second arc convex block connection planar three-dimensional structure schematic diagram,

[0027] Figure 6 The utility model discloses fixed plate, rotation column and second spring connection elevation three-dimensional structure schematic diagram.

[0028] In the drawing: 1, test frock body, 2, blind end cover body, 3, pressing plate, 4, connecting plate, 5, first spring, 6, positioning column, 7, clamping plate, 8, fixed block, 9, vacuum rubber pad, 10, first arc convex block, 11, polyurethane gasket, 12, second arc convex block, 13, water inlet, 14, water outlet, 15, plug, 16, fixed plate, 17, rotation column, 18, second spring, 19, baffle. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work belong to the range of the utility model protection.

[0030] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: a kind of blind end cover is sealed frock for pressure test, including test frock body 1, blind end cover body 2, pressing plate 3, connecting plate 4, first spring 5, positioning column 6, clamping plate 7, fixed block 8, vacuum rubber pad 9, first arc convex block 10, polyurethane gasket 11, second arc convex block 12, water inlet 13, water outlet 14, plug 15, fixed plate 16, rotation column 17, second spring 18 and baffle 19;

[0031] The existing blind end cover is sealed frock for pressure test, not convenient for the overall positioning of blind end cover, so that when only the top of blind end cover is extruded, the problem of inaccurate blind end cover pressure test result can occur, not convenient for the quick positioning of gasket for protecting blind end cover thread, so that when gasket is positioned after installation, gasket position is not suitable, which affects the protection effect of blind end cover outside thread, not convenient for the quick opening and closing of water flow passage of blind end cover, so that when pressure relief is needed, water flow passage is easily blocked seriously, and cannot be quickly removed.

[0032] The test tool body 1, the inner slot of the test tool body 1 is connected with the blind end cover body 2, and the upper end of the blind end cover body 2 is tightly attached to the pressing plate 3, and the lower end of the blind end cover body 2 is tightly attached to the clamping plate 7, the outer end of the clamping plate 7 is rotatably connected to the lower end of the connecting plate 4, and the upper end of the connecting plate 4 is tightly attached to the blind end cover body 2, and the lower end of the connecting plate 4 is fixedly connected with the first spring 5, the lower end of the first spring 5 is fixedly connected with the positioning column 6, and the lower end of the positioning column 6 is fixedly connected in the recess of the test tool body 1 through a screw.

[0033] When the whole blind end cover needs to be extruded and positioned, the lower end of the blind end cover body 2 is placed on the inner side of the test tool body 1, and the lead screw lifter is started to drive the pressing plate 3 installed at the lower end of the lead screw lifter to move downward, so that the lower end of the pressing plate 3 gradually extrudes the blind end cover body 2 downward, and the lower end of the blind end cover body 2 is completely connected in the slot on the inner side of the test tool body 1. At this time, the middle lower side of the blind end cover body 2 extrudes the connecting plate 4 downward, and the first spring 5 fixedly connected to the lower end of the connecting plate 4 is deformed under pressure, so that the two clamping plates 7 rotatably connected to the lower end of the connecting plate 4 slide outward at the same time. At this time, the lower end of the clamping plate 7 slides outward on the upper end of the fixed block 8, extruding the inner side of the blind end cover body 2 at both ends, so that the blind end cover body 2 is extruded at three places, the stress is dispersed, and the pressure of the blind end cover can be evenly distributed to avoid local extrusion of the blind end cover and affect the pressure detection data of the blind end cover.

[0034] The blind end cover body 2, the lower end of the blind end cover body 2 is tightly attached to the polyurethane gasket 11, and the outer end of the polyurethane gasket 11 is connected in the slot with the second arc-shaped protrusion 12, and the lower end of the polyurethane gasket 11 is tightly attached to the vacuum rubber pad 9, the outer end of the vacuum rubber pad 9 is connected in the slot with the first arc-shaped protrusion 10, and the outer sides of the first arc-shaped protrusion 10 and the second arc-shaped protrusion 12 are fixedly connected with the test tool body 1.

[0035] When it is necessary to accurately protect the threads of each blind end cover, the first arc-shaped protrusion 10 and the second arc-shaped protrusion 12 are respectively fixedly connected to the upper and lower sides of the inside of the test tool body 1, the vacuum rubber pad 9 is pushed into the inside of the test tool body 1, after the lower end of the vacuum rubber pad 9 is completely slot-connected to the outside of the first arc-shaped protrusion 10, the polyurethane pad 11 is pushed into the inside of the test tool body 1, after the lower end of the polyurethane pad 11 is slot-connected to the outside of the second arc-shaped protrusion 12, the lower end of the polyurethane pad 11 is tightly attached to the vacuum rubber pad 9, the blind end cover body 2 is then pushed into the inside of the test tool body 1, and finally the sealing plate 3 is driven by the screw lift to seal the upper end of the blind end cover body 2, so that the external threads of each blind end cover can be perfectly protected during pressure resistance detection, and the blind end cover is prevented from being ejected after detection to cause displacement of the sealing parts, thereby avoiding the need to constantly adjust the pad for thread protection during subsequent pressure resistance detection of the blind end cover.

[0036] The test tool body 1 is provided with a water outlet 14 and a water inlet 13 at the left and right ends of the inside of the test tool body 1, respectively, the water inlet 13 and the water outlet 14 are respectively slot-connected to the plugs 15, the outside of the plugs 15 is fixedly connected to the fixed plate 16, the upper end of the inside of the fixed plate 16 is slidingly connected to the outside of the rotating column 17, the inside of the rotating column 17 is fixedly connected to the second spring 18, the inside of the second spring 18 is fixedly connected to the blocking piece 19, and the inner end of the rotating column 17 is rotatably connected to the inside of the test tool body 1.

[0037] When it is necessary to quickly release pressure or seal the water flow passage of the blind end cover, the fixed plate 16 is pulled outward, the plug 15 fixedly connected to the inside of the lower end of the fixed plate 16 is moved outward, the inner end of the plug 15 is disconnected from the slot connection between the water inlet 13 or the water outlet 14, at this time the second spring 18 fixedly connected to the inside of the upper end of the fixed plate 16 is under pressure and deformed, causing the fixed plate 16 to slide outward on the outside of the rotating column 17 and rotate the rotating column 17, driving the fixed plate 16 slidingly connected to the outside of the rotating column 17 to flip upward, at this time the passage of the water inlet 13 or the water outlet 14 loses the blockage, and water flows into the inside of the test tool body 1, after the inside of the test tool body 1 is filled with water, the fixed plate 16 is flipped downward outward, the plug 15 is aligned with the opening of the water inlet 13 or the water outlet 14, and the fixed plate 16 is loosened, at this time the second spring 18 fixedly connected to the inside of the upper end of the fixed plate 16 loses pressure and recovers elasticity, causing the upper end of the inside of the fixed plate 16 to move inward on the outside of the rotating column 17 until the inside of the plug 15 is slot-connected to the inside of the water inlet 13 or the water outlet 14, blocking the water flow, which can quickly release pressure or seal the water flow passage of the blind end cover, and is relatively convenient to use.

[0038] The content not described in detail in the specification belongs to the prior art known to those skilled in the art, the standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0039] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A pressure test sealing tool for blind end cover, comprising: a test tool body (1), an inner slot of the test tool body (1) is connected with a blind end cover body (2); characterized in that it further comprises: a clamping plate (7) is tightly attached to the inner side of the lower end of the blind end cover body (2), and the outer side of the clamping plate (7) is rotatably connected with a connecting plate (4), and the lower end of the clamping plate (7) is provided with a fixing block (8); a polyurethane gasket (11) is installed between the test tool body (1) and the clamping plate (7) on the outer side of the polyurethane gasket (11), and a limiting structure is arranged on the outer side of the polyurethane gasket (11) for convenient and rapid positioning, wherein the limiting structure comprises a vacuum rubber pad (9), a first arc-shaped lug (10) and a second arc-shaped lug (12), the outer end of the polyurethane gasket (11) is connected with the second arc-shaped lug (12) through a slot, and the lower end of the polyurethane gasket (11) is tightly attached to the vacuum rubber pad (9), and the lower end of the vacuum rubber pad (9) is connected with the first arc-shaped lug (10) through a slot; a plug (15) is arranged on the lower end of the polyurethane gasket (11) for quickly opening and closing the water channel.

2. The pressure-resistant test sealing tool for blind end cover according to claim 1, characterized in that: a first spring (5) is fixedly connected to the lower end of the connecting plate (4), and the lower end of the first spring (5) is fixedly connected with a positioning column (6), the lower end of the positioning column (6) is provided with the test tool body (1), and the lower end of the positioning column (6) is fixedly connected in the groove of the test tool body (1) through a screw, and the outer end of the clamping plate (7) is provided with the polyurethane gasket (11).

3. The pressure-resistant test sealing tool for blind end cover according to claim 1, characterized in that: the middle lower side of the blind end cover body (2) is tightly attached to the connecting plate (4), and the upper end of the blind end cover body (2) is tightly attached to a pressing plate (3), and the pressing plate (3) is the pressing head of a screw rod elevator.

4. The pressure-resistant test sealing tool for blind end cover according to claim 1, characterized in that: the outer side of the first arc-shaped lug (10) is fixedly connected with the test tool body (1), and the inner side of the upper end of the test tool body (1) is fixedly connected with the second arc-shaped lug (12), and the lower end of the test tool body (1) is rotatably connected with a rotating column (17) inside.

5. The pressure-resistant test sealing tool for blind end cover according to claim 1, characterized in that: the outer side of the plug (15) is fixedly connected with a fixed plate (16), and the upper end of the fixed plate (16) is fixedly connected with a second spring (18) on the left side, the inner side of the second spring (18) is fixedly connected with a baffle (19), the inner side of the baffle (19) is fixedly connected with the rotating column (17), and the outer side of the rotating column (17) is slidingly connected with the fixed plate (16).

6. The pressure-resistant test sealing tool for blind end cover according to claim 1, characterized in that: the inner side of the plug (15) is respectively connected with a water inlet (13) and a water outlet (14) through a slot, and the outer side of the water inlet (13) is provided with the test tool body (1), and the right end of the test tool body (1) is provided with the water outlet (14) inside.

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