Underwater hose leakproofness negative pressure testboard

Abstract

The invention discloses an underwater hose leakproofness negative pressure testboard, and relates to the technical field of hose detection, the testboard comprises a testboard main body, the testboard main body comprises a water storage tank, a top pipeline of the water storage tank is connected with a rack pipe box, the rack pipe box is internally provided with a pipe locking assembly, the pipe locking assembly comprises a plurality of side sleeves, and the side sleeves are connected with the rack pipe box. Positioning sleeves are symmetrically and fixedly connected to the bottom of the inner side of the pipe erecting box; wherein the inner side of the positioning sleeve is fixedly connected with a first air bag, the air guide pipe is sleeved with a connecting sleeve, one side of the connecting sleeve is connected with a sealing ring in a magnetic attraction mode, the other side of the connecting sleeve is fixedly connected with a fixing sleeve, and the inner side of the connecting sleeve is fixedly connected with a second air bag. The first air bag and the second air bag are matched with the multi-specification sealing rings which are quickly disassembled and assembled, so that the two ends of the tube body are quickly fixed with good sealing performance, and the applicability of fixing and sealing bare tubes with various sizes is improved.

Description

Technical Field

[0001] The invention relates to the technical field of hose detection, in particular to an underwater hose airtightness negative pressure test bench. Background Art

[0002] Publication No. CN117629528A discloses an underwater hose airtightness negative pressure detection device, including a clean water circulation mechanism, an automatic locking mechanism, a mobile base, a storage tank, a hose body, a booster air pump and a booster pipe. The upper end of the clean water circulation mechanism is fixedly installed with an automatic locking mechanism, and the middle part of the automatic locking mechanism is evenly distributed with a hose body. The upper rear end of the clean water circulation mechanism is fixedly connected with a booster air pump, and the air outlet ends of the booster air pump are fixedly connected with the booster pipe. The upper front end of the clean water circulation mechanism is fixedly installed with a storage tank, and the two ends of the hose are automatically locked and sealed by the automatic locking mechanism, which reduces the time of manually connecting the two ends of the hose to the outer periphery of the booster air pump connecting pipe, improves the detection efficiency, and automatically filters the detected clean water through the clean water circulation mechanism, reduces the frequency of changing clean water, and avoids the waste of water resources. However, the patent still has the following problems in actual use:

[0003] The automatic locking mechanism in the above device requires a motor at each end of each pipe, which is relatively expensive. At the same time, threaded seals are used to achieve sealing and fixation, but this device requires nuts of specific sizes to be fixed at both ends of the hose, and some existing hoses do not have such nuts, resulting in this device being unsuitable for hoses without nuts.

[0004] The invention proposes a negative pressure test bench for the tightness of an underwater hose in order to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide an underwater hose airtightness negative pressure test bench to solve the need for an automatic locking mechanism in the above-mentioned device proposed in the above-mentioned background technology. A motor is required at each end of each pipe, which has a relatively high cost. At the same time, threaded seals are used to achieve sealing and fixation. However, this device requires that nuts of a specific size be fixed at both ends of the hose, and a part of the existing hoses do not have such nuts, resulting in the problem that this device is not applicable to hoses without nuts.

[0006] To achieve the above object, the present invention provides the following technical solution: an underwater hose airtightness negative pressure test bench, comprising a test bench main body, the test bench main body comprising a water storage tank, the top pipeline of the water storage tank is connected to a pipe rack box, an air guide pipe is fixedly installed on one side of the pipe rack box, the air guide pipe is connected to an external air pressure pump, and a plurality of pipe bodies are installed above the pipe rack box;

[0007] A locking tube assembly is provided inside the rack pipe box, and the locking tube assembly includes a plurality of side sleeves symmetrically fixed on both sides of the rack pipe box. A positioning sleeve is symmetrically fixedly connected to the bottom of the inner side of the rack pipe box. The side sleeve is located inside the positioning sleeve, and the air guide pipe is connected to the side sleeve on one side.

[0008] The top of the positioning sleeve is fixedly connected with a catheter, a first air valve is fixedly installed on the catheter, a first air bag is fixedly connected to the inner side of the positioning sleeve, the catheter is communicated with the first air valve, and the tube body is plugged with the side sleeve;

[0009] Among them, the outer sleeve of the air guide tube is provided with a connecting sleeve, one side of the connecting sleeve is magnetically connected to a sealing ring, the other side of the connecting sleeve is fixedly connected to a fixing sleeve, the inside of the fixing sleeve is fixedly installed with a positioning sleeve, the sealing ring is fitted with the side sleeve, the inner side of the connecting sleeve is fixedly connected to a second air bag, the top of the connecting sleeve is fixedly connected to an air guide hose, and the other end of the air guide hose is fixedly connected to the side of the catheter.

[0010] Preferably, the conduit is connected to an external air pump, the outer side of the fixing sleeve is threadedly connected to a threaded knob, the threaded knob fits with the outer inclined surface of the positioning sleeve, and a second air valve is fixedly mounted on the air guide tube.

[0011] Preferably, a mounting plate is fixedly connected inside the fixing sleeve, the tube body is connected through the mounting plate, and the positioning sleeve is fixedly connected to the mounting plate.

[0012] Preferably, the sealing ring is sleeved on the outside of the tube body and fits with the tube body, and a magnetic groove ring is fixedly connected to the side of the sealing ring, and the magnetic groove ring is embedded with the end of the connecting sleeve and is magnetically attracted.

[0013] Preferably, an ash removal assembly is provided inside the water tank, and the ash removal assembly includes an extension plate fixed to the bottom of one side of the water tank, a water pump is fixedly installed on the extension plate, and two ports of the water pump are respectively fixedly connected to an upper water outlet pipe and a lower water outlet pipe.

[0014] Preferably, the upper water outlet pipe and the lower water outlet pipe both extend into the water storage tank, the inner top of the water storage tank is fixedly connected to a transfer water tank, the bottom of one side of the transfer water tank is fixedly connected to the upper water outlet pipe, and the top of the other side of the transfer water tank is fixedly connected to a through pipe, and the through pipe passes through the top of the water storage tank and the bottom of the pipe rack box.

[0015] Preferably, the transfer water tank is fixedly connected to the inner side of the front side of the water storage tank, a mesh plate is slidably connected to the middle part of the transfer water tank, an outer shell plate is fixedly connected to the front side of the mesh plate, the outer shell plate is embedded with the water storage tank, a convex plate is symmetrically fixedly connected to the outer side of the outer shell plate, and the convex plate is threadedly fixed to the water storage tank.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the underwater hose airtightness negative pressure test bench, through the first airbag and the second airbag cooperate with the multi-specification sealing rings that can be quickly disassembled and assembled, enables the tubes of various sizes to be quickly fixed with good sealing at both ends when the sealing rings of corresponding specifications cooperate, avoiding the situation that it is difficult to take into account the multi-size fixation and non-threaded sealing when the tube body does not have its own nut, and increases the applicability of the test device for the fixation and sealing of tubes of various sizes. The specific contents are as follows:

[0017] 1. Select a sealing ring of appropriate size to connect with the connecting sleeve, then pass the connecting sleeve through the end of the tube body, then rotate the threaded knob to deform the positioning sleeve due to extrusion, and then initially clamp the tube body, then open the first air valve and start the external air pump, so that the gas is pumped into the first airbag and the second airbag through the catheter and the air guide hose to expand them. At this time, the expansion of the first airbag will cover the side sleeve, the sealing ring and the outside of the connecting sleeve to achieve secondary fixation and preliminary sealing, and the expansion of the second airbag will wrap the outside of the tube body to achieve further sealing, and finally, the tube bodies of various sizes can be quickly fixed with good sealing at both ends under the cooperation of the sealing rings of corresponding specifications, avoiding the situation that it is difficult to take into account multi-size fixation and threadless sealing when the tube body does not have its own nut, thereby increasing the applicability of the test device for fixing and sealing of tube bodies of various sizes.

[0018] 2. Start the water pump to pump the water inside the water tank into the pipe rack box and immerse the pipe body in water. Then open the second air valve and use an external air pressure pump to pump air into the pipe body and observe the airtightness. Then use the water pump to pump the water back to the water tank. The mesh plate can filter the dust and impurities in the water to ensure that the water will not be contaminated during long-term use. Finally, remove the convex plate regularly, pull the outer shell plate together with the mesh plate out of the transfer water tank and the water tank, and clean the mesh plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the front structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the front cross-section structure of the present invention;

[0021] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of the A area in the middle;

[0022] Figure 4 It is a schematic diagram of the installation structure of the positioning sleeve and the first airbag;

[0023] Figure 5 It is a schematic diagram of the installation structure of the connecting sleeve and the fixing sleeve.

[0024] In the figure: 1. test bench body; 101. water storage tank; 102. pipe rack box; 103. pipe body; 104. air guide pipe; 2. lock pipe assembly; 201. side sleeve; 202. positioning sleeve; 203. catheter; 204. first air valve; 205. first air bag; 206. air guide hose; 207. connecting sleeve; 208. second air bag; 209. fixing sleeve; 210. sealing ring; 211. threaded knob; 212. mounting plate; 213. positioning jacket; 214. second air valve; 215. magnetic groove ring; 3. ash removal assembly; 301. extension plate; 302. water pump; 303. upper water outlet pipe; 304. lower water outlet pipe; 305. transfer water tank; 306. mesh plate; 307. through pipe; 308. convex plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 5 The present invention provides a technical solution: an underwater hose airtightness negative pressure test bench, comprising a test bench body 1, the test bench body 1 comprising a water storage tank 101, the top pipeline of the water storage tank 101 is connected to a pipe rack box 102, an air guide pipe 104 is fixedly installed on one side of the pipe rack box 102, the air guide pipe 104 is connected to an external air pressure pump, and a plurality of pipe bodies 103 are installed above the pipe rack box 102;

[0027] A locking tube assembly 2 is provided inside the tube rack box 102. The locking tube assembly 2 includes a plurality of side sleeves 201 symmetrically fixed to both sides of the tube rack box 102. A positioning sleeve 202 is symmetrically fixedly connected to the bottom of the inner side of the tube rack box 102. The side sleeve 201 is located inside the positioning sleeve 202. The air guide pipe 104 is connected to the side sleeve 201 on one side.

[0028] Among them, the top of the positioning sleeve 202 is fixedly connected with a catheter 203, and a first air valve 204 is fixedly installed on the catheter 203. The inner side of the positioning sleeve 202 is fixedly connected with a first air bag 205. The catheter 203 is communicated with the first air valve 204, and the tube body 103 is plugged with the side sleeve 201; the gas entering the side sleeve 201 will enter the tube body 103, and the number of side sleeves 201 on a single side is not less than three.

[0029] Among them, the outer sleeve of the air guide tube 104 is provided with a connecting sleeve 207, one side of the connecting sleeve 207 is magnetically connected to a sealing ring 210, the other side of the connecting sleeve 207 is fixedly connected to a fixing sleeve 209, the interior of the fixing sleeve 209 is fixedly installed with a positioning sleeve 213, the sealing ring 210 is fitted with the side sleeve 201, the inner side of the connecting sleeve 207 is fixedly connected to a second air bag 208, the top of the connecting sleeve 207 is fixedly connected to an air guide hose 206, and the other end of the air guide hose 206 is fixedly connected to the side edge of the catheter 203; when the sealing ring 210 is tightly attached to the side sleeve 201, it can achieve a certain waterproof and air leakage-proof effect; an opening is opened in the middle of the sealing ring 210, so that tube bodies 103 of various sizes can pass through, and the sealing ring 210 is divided into various specifications according to the size of the opening, so as to be suitable for tube bodies 103 of various diameters.

[0030] The catheter 203 is connected to an external air pump, the outer side of the fixing sleeve 209 is threadedly connected to a threaded knob 211, the threaded knob 211 fits with the outer inclined surface of the positioning sleeve 213, and a second air valve 214 is fixedly installed on the air guide tube 104; when the second air bag 208 and the first air bag 205 are filled with gas and expanded to be close to the tube body 103, the second air valve 214 is closed to prevent air leakage.

[0031] The interior of the fixing sleeve 209 is fixedly connected with a mounting plate 212 , the tube body 103 is connected through the mounting plate 212 , and the positioning sleeve 213 is fixedly connected to the mounting plate 212 ; the positioning sleeve 213 can deform toward the middle and clamp the tube body 103 to achieve the positioning of the sealing ring 210 .

[0032] The sealing ring 210 is sleeved on the outside of the tube body 103 and fits with the tube body 103 . The side of the sealing ring 210 is fixedly connected with a magnetic groove ring 215 . The magnetic groove ring 215 is embedded with the end of the connecting sleeve 207 and is magnetically attracted.

[0033] A dust removal assembly 3 is arranged inside the water tank 101, and the dust removal assembly 3 includes an extension plate 301 fixed to the bottom of one side of the water tank 101, and a water pump 302 is fixedly installed on the extension plate 301. The two ports of the water pump 302 are respectively fixedly connected to an upper water outlet pipe 303 and a lower water outlet pipe 304.

[0034] The upper water outlet pipe 303 and the lower water outlet pipe 304 both extend into the water storage tank 101, and a transfer water tank 305 is fixedly connected to the inner top of the water storage tank 101. The bottom of one side of the transfer water tank 305 is fixedly connected to the upper water outlet pipe 303, and the top of the other side of the transfer water tank 305 is fixedly connected to a through pipe 307, which passes through the top of the water storage tank 101 and the bottom of the pipe rack box 102; the water pump 302 can realize two-way water pumping, and the through pipe 307 can guide water into the pipe rack box 102.

[0035] The transfer water tank 305 is fixedly connected to the inner side of the front of the water storage tank 101, and the middle part of the transfer water tank 305 is slidably connected with a mesh plate 306, and the front of the mesh plate 306 is fixedly connected with an outer shell plate, and the outer shell plate is embedded with the water storage tank 101. The outer side of the outer shell plate is symmetrically fixedly connected with a convex plate 308, and the convex plate 308 is threadedly fixed to the water storage tank 101; the convex plate 308 is fixed to the outside of the water storage tank 101 by bolts, and a sealing ring is provided between the outer shell plate and the water storage tank 101

[0036] Working principle: Before using this underwater hose tightness negative pressure test bench, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Figure 5 As shown, firstly, a sealing ring 210 of a suitable size is selected according to the diameter of the tube body 103, and the sealing ring 210 is connected to the connecting sleeve 207 by means of a magnetic groove ring 215, and then the connecting sleeve 207 is passed through the end of the tube body 103, and then the threaded knob 211 is rotated to deform the positioning sleeve 213 due to extrusion, thereby preliminarily clamping the tube body 103, and the connecting sleeve 207 is inserted into the interior of the positioning sleeve 202, so that the sealing ring 210 fits the outside of the side sleeve 201, and at this time, the first air valve 204 is opened and the external air pump is started, so that the gas is pumped into the first air bag 205 and the second air bag 205 through the conduit 203 and the air guide hose 206. The airbag 208 is expanded. At this time, the first airbag 205 expands to cover the side sleeve 201, the sealing ring 210 and the outside of the connecting sleeve 207 to achieve secondary fixation and preliminary sealing, and the expansion of the second airbag 208 will wrap the outside of the tube body 103 tightly, thereby achieving further sealing. Finally, the tube bodies 103 of various sizes can be quickly fixed with good sealing performance when the sealing rings 210 of corresponding specifications cooperate, avoiding the situation that it is difficult to take into account the multi-size fixation and non-threaded sealing when the tube body 103 does not have its own nut, thereby increasing the applicability of the test device for fixing and sealing tube bodies 103 of various sizes;

[0037] By starting the water pump 302, the water inside the water tank 101 is pumped into the pipe rack box 102, and the pipe body 103 is immersed in the water. Then, the second air valve 214 is opened and the pipe body 103 is pumped with air through an external air pressure pump to observe the airtightness. Then, the water is pumped back to the water tank 101 by the water pump 302. The mesh plate 306 can filter the dust and impurities in the water to ensure that the water will not be polluted during long-term use. Finally, by regularly disassembling the convex plate 308, the outer shell plate together with the mesh plate 306 are pulled out of the transfer water tank 305 and the water tank 101, and the mesh plate 306 is cleaned.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An underwater hose airtightness negative pressure test bench, comprising a test bench body (1), the test bench body (1) comprising a water storage tank (101), the top pipeline of the water storage tank (101) being connected to a pipe rack box (102), an air guide pipe (104) being fixedly installed on one side of the pipe rack box (102), the air guide pipe (104) being connected to an external air pressure pump, and a plurality of pipe bodies (103) being installed above the pipe rack box (102); It is characterized in that Also includes: A pipe locking assembly (2) is arranged inside the pipe rack box (102), the pipe locking assembly (2) comprising a plurality of side sleeves (201) symmetrically fixed to two sides of the inside of the pipe rack box (102), a positioning sleeve (202) is symmetrically fixedly connected to the bottom of the inner side of the pipe rack box (102), the side sleeve (201) is located inside the positioning sleeve (202), and the air guide pipe (104) is connected to the side sleeve (201) on one side; The top of the positioning sleeve (202) is fixedly connected to a catheter (203), a first air valve (204) is fixedly installed on the catheter (203), a first air bag (205) is fixedly connected to the inner side of the positioning sleeve (202), the catheter (203) is communicated with the first air valve (204), and the tube body (103) is plugged into the side sleeve (201); The outer sleeve of the air guide tube (104) is provided with a connecting sleeve (207), one side of the connecting sleeve (207) is magnetically connected to a sealing ring (210), the other side of the connecting sleeve (207) is fixedly connected to a fixing sleeve (209), a positioning sleeve (213) is fixedly installed inside the fixing sleeve (209), the sealing ring (210) is fitted with the side sleeve (201), the inner side of the connecting sleeve (207) is fixedly connected to a second air bag (208), the top of the connecting sleeve (207) is fixedly connected to an air guide hose (206), and the other end of the air guide hose (206) is fixedly connected to the side of the catheter (203).

2. The underwater hose tightness negative pressure test bench according to claim 1, characterized in that: The conduit (203) is connected to an external air pump, the outer side of the fixing sleeve (209) is threadedly connected to a threaded knob (211), the threaded knob (211) is fitted with the outer inclined surface of the positioning sleeve (213), and a second air valve (214) is fixedly mounted on the air guide tube (104).

3. The underwater hose tightness negative pressure test bench according to claim 1, characterized in that: The interior of the fixing sleeve (209) is fixedly connected with a mounting plate (212), the tube body (103) is connected through the mounting plate (212), and the positioning sleeve (213) is fixedly connected with the mounting plate (212).

4. The underwater hose tightness negative pressure test bench according to claim 1, characterized in that: The sealing ring (210) is sleeved on the outside of the tube body (103) and fits with the tube body (103); a magnetic groove ring (215) is fixedly connected to the side of the sealing ring (210); and the magnetic groove ring (215) is embedded with the end of the connecting sleeve (207) and is magnetically attracted.

5. The underwater hose tightness negative pressure test bench according to claim 1, characterized in that: The water storage tank (101) is provided with an ash removal assembly (3) inside, and the ash removal assembly (3) comprises an extension plate (301) fixed to the bottom of one side of the water storage tank (101), a water pump (302) is fixedly mounted on the extension plate (301), and two ports of the water pump (302) are respectively fixedly connected to an upper water outlet pipe (303) and a lower water outlet pipe (304).

6. The underwater hose tightness negative pressure test bench according to claim 5, characterized in that: The upper water outlet pipe (303) and the lower water outlet pipe (304) both extend into the water storage tank (101); the inner top of the water storage tank (101) is fixedly connected to a transfer water tank (305); the bottom of one side of the transfer water tank (305) is fixedly connected to the upper water outlet pipe (303); the top of the other side of the transfer water tank (305) is fixedly connected to a through pipe (307); the through pipe (307) passes through the top of the water storage tank (101) and the bottom of the pipe rack box (102).

7. The underwater hose tightness negative pressure test bench according to claim 6, characterized in that: The transfer water tank (305) is fixedly connected to the inner side of the front of the water storage tank (101); a mesh plate (306) is slidably connected to the middle of the transfer water tank (305); an outer shell plate is fixedly connected to the front of the mesh plate (306); the outer shell plate is engaged with the water storage tank (101); a convex plate (308) is symmetrically fixedly connected to the outer side of the outer shell plate; the convex plate (308) is threadedly fixed to the water storage tank (101).

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