A double-ended external thread joint for a hose

Abstract

The present invention discloses a double-ended external thread connector for a hose, which belongs to the technical field of connectors, and comprises a main through-tube, wherein both sides of the main through-tube are fixedly connected with connector tubes, the outer surface of the main through-tube is transmission-connected with a clamping assembly, and one side of the main through-tube is fixedly connected with a pressure relief assembly. In the present invention, by setting a pressure relief assembly, the second channel is connected with the air inlet and the gas in the hose is discharged from the second air outlet, thereby achieving a pressure relief effect. If the air pressure generated in the hose is too large, the connecting column is displaced upward and slides into the second shell under the action of the air pressure. The first channel and the second channel are both connected with the air inlet. At this time, the first air outlet and the second air outlet can both discharge gas, thereby achieving a rapid pressure relief effect, thereby achieving a graded pressure relief effect, and being able to cope with different pressure conditions in the hose, thereby avoiding the hose rupture or disconnection at the joint caused by excessive air pressure in the hose, thereby improving the safety and stability of the hose in conveying gas.

Description

Technical Field

[0001] The invention belongs to the technical field of connectors, and in particular relates to a double-end external thread connector for a hose. Background Art

[0002] A hose is a type of tubular rubber product used to transport gas, liquid, slurry or granular materials. Currently, various types of hoses are widely used in the machinery and equipment industry. Due to work needs or the long distance between the gas source and the work point, and because the usual specification of a hose is 30 meters, 2 or 3 to 4 hose reels are required to be connected with a straight-through pagoda-type joint.

[0003] The existing technology discloses some invention patents in the field of medical devices, among which the invention patent with application number CN202111058768.0 discloses a hydraulic high-stability hose joint, which solves the problem of loose joints caused by liquid impact force, including a hydraulic variable tube and an outer shell sleeved on the hydraulic variable tube, characterized in that: the hydraulic variable tube includes a fixed rod and a pressure-changing tube fixedly connected to the right end of the fixed rod, the fixed rod is fixedly connected to a limiting gasket near the outer end of the pressure-changing tube, the sliding end of the pressure-changing tube is located on the left side of the limiting gasket, the outer end of the fixed rod is cut with a warning ring groove, and the inner wall of the warning ring groove is cut with a filling hole. The upward mouth of the filling hole is located on the left side of the limit gasket ring, and a plurality of evenly distributed color display points are fixedly connected to the bottom end of the warning ring groove. A liquid-conducting fiber bundle is fixedly passed through the plurality of color display points, and the end of the liquid-conducting fiber bundle extends to the mouth of the filling hole. Through the setting of the hydraulic variable tube, when the fluid passes through, the pressure variable tube squeezes the hose under the action of the fluid pressure and expands toward the inner wall of the outer shell, so that the outer top ring wedge squeezes the hose. At this time, the hose undergoes local deformation and sinks into the corresponding sunken ring wedge groove, thereby realizing the connection between the hose and the joint being tightened by the fluid's own pressure, and achieving the effect of higher connection stability between the two as the liquid pressure increases.

[0004] However, in actual use, when gas or liquid is transported in the hose, if a fault occurs at the output end, resulting in excessive transport pressure, which in turn causes excessive pressure in the hose, may cause damage to the hose or connector. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that the pressure inside the hose is too high, which may cause damage to the hose or connecting parts, and to propose a double-end external thread connector for the hose.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A double-ended male thread connector for a hose comprises a main tube, both sides of which are fixedly connected to connector tubes, an outer surface of the main tube being transmission-connected to a clamping assembly, and one side of the main tube being fixedly connected to a pressure relief assembly;

[0008] The clamping assembly includes two sliding rings, which are slidably connected to the outer surface of the main through-tube, and the inner side of the sliding ring fits in with the outer surface of the main through-tube. One side of the sliding ring is fixedly connected to an extrusion ring, which is slidably connected to the outer surface of the main through-tube, and the inner side of the extrusion ring fits in with the outer surface of the main through-tube. Two extrusion wheels are fit in with the side of the extrusion ring away from the sliding ring, and the two extrusion wheels are symmetrically distributed along the axial center of the main through-tube. A connecting rod is fixedly connected to the side of the extrusion wheel away from the extrusion ring, and connecting brackets are hinged on both sides of the connecting rod through pins, and the connecting bracket is fixedly connected to the outer surface of the main through-tube, and a clamping block is fixedly connected to the end of the connecting rod away from the extrusion wheel, and a flexible pad is fixedly connected to the inside of the clamping block, and the cross-sectional shape of the clamping block and the flexible pad are both semi-annular.

[0009] As a further description of the above technical solution:

[0010] Both ends of the main through pipe are provided with mounting grooves, a second spring is arranged in the mounting groove, and both ends of the second spring are fixedly connected to the bottom of the inner wall of the mounting groove and one side of the connecting rod respectively.

[0011] As a further description of the above technical solution:

[0012] Slide grooves are provided on both sides of both ends of the main through pipe, and sliders are fixedly connected to both sides of the sliding ring. The sliders are slidably connected in the slide grooves. The cross-sectional shapes of the sliders and the slide grooves are both T-shaped, and the sliders and the slide grooves slide tightly.

[0013] As a further description of the above technical solution:

[0014] An adjusting screw is threadedly connected to one side of the sliding ring, and a connecting shaft is fixedly connected between the two adjusting screws. A rotating ring is clamped at the center of the connecting shaft. Both sides of the connecting shaft are rotatably connected to mounting seats, and the bottom of the mounting seat is fixedly connected to the outer surface of the main through pipe.

[0015] As a further description of the above technical solution:

[0016] The two adjusting screws are symmetrically distributed along the center of the connecting shaft, and the thread directions of the two adjusting screws are opposite.

[0017] As a further description of the above technical solution:

[0018] The pressure relief assembly includes a first shell, the bottom of the first shell is fixedly connected to the top of the main through-tube, an air inlet is provided at the bottom of the first shell, the air inlet is communicated with the inner cavity of the main through-tube, a nut is embedded in the top of the first shell, and a bolt is connected to the inner thread of the nut, a button cap is fixedly connected to the top of the bolt, and the end of the bolt away from the button cap is fixedly connected to the connecting seat, a groove is provided at the bottom of the connecting seat, and a sliding rod is slidably connected in the groove, the bottom of the sliding rod is fixedly connected to the connecting column, the outer surface of the sliding rod is sleeved with a first spring, the two ends of the first spring are respectively fixedly connected to the bottom of the connecting seat and the top of the connecting column, the inner cavity of the first shell is fixedly connected to the second shell, a sealing ring is embedded in the bottom of the second shell, and the connecting seat is slidably connected to the sealing ring.

[0019] As a further description of the above technical solution:

[0020] A sealing block is fixedly connected to the bottom of the connecting column, and the sealing block is fitted with the air inlet.

[0021] As a further description of the above technical solution:

[0022] A second channel is provided between the first shell and the second shell. A top of the second channel is connected to a plurality of second air outlets. The second channel is connected to the air inlet.

[0023] As a further description of the above technical solution:

[0024] A first channel is defined in the inner cavity of the second shell, and a plurality of first air outlets are defined on the top of the second shell. The first channel is communicated with the first air outlets, and the first channel is communicated with the air inlet.

[0025] As a further description of the above technical solution:

[0026] The sealing block is a flexible plastic block, and the cross-section of the sealing block is circular.

[0027] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0028] 1. In the present invention, by providing a pressure relief component, the air pressure in the hose just exceeds the critical value of the pressure relief component, the sealing block is separated from the air inlet under the action of the air pressure, the second channel is connected to the air inlet and the gas in the hose is discharged from the second air outlet, thereby achieving the effect of pressure relief. If the air pressure generated in the hose is too large, the connecting column is displaced upward and slides into the second shell under the action of the air pressure, and the first channel and the second channel are both connected to the air inlet. At this time, the first air outlet and the second air outlet can both discharge gas, which can achieve the effect of rapid pressure relief, thereby achieving the effect of graded pressure relief, and can cope with different pressure conditions in the hose, avoiding the situation that the hose ruptures or the disconnection of the joint due to excessive air pressure in the hose, thereby improving the safety and stability of gas transportation by the hose.

[0029] 2. In the present invention, by setting a bolt and rotating the bolt, the rotation of the bolt drives the connecting seat to move, so that the distance between the connecting seat and the connecting column changes, thereby changing the compression amount of the first spring, so that the pressure of the first spring on the connecting column changes, thereby changing the pressure relief threshold of the connecting column, and the safety air pressure value inside the hose can be artificially set, thereby meeting the different pressure requirements when conveying different gases, and improving the practicality of the joint.

[0030] 3. In the present invention, by setting a clamping assembly, the rotating ring drives the adjusting screws on both sides to rotate through the connecting shaft, the adjusting screw drives the extrusion ring to move on the outer surface of the main through pipe through the sliding ring, the extrusion ring drives the extrusion wheel to move, the extrusion wheel drives the connecting rod to rotate around the pin shaft, and the connecting rod drives the clamping block to approach the joint pipe and clamp the outside of the hose to limit it, thereby achieving fixed limitation of the rubber head, improving the connection tightness between the rubber head and the joint pipe, and at the same time, it can realize quick disassembly and assembly of the rubber head and the joint pipe, improving the installation and disassembly efficiency of the hose and the joint pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the three-dimensional structure of a double-ended external thread connector for a hose proposed by the present invention;

[0032] Figure 2 This is a schematic diagram of the enlarged structure of part A of a double-ended external thread connector for a hose proposed by the present invention;

[0033] Figure 3 This is a schematic diagram of the enlarged structure of part B of a double-ended external thread connector for a hose proposed by the present invention;

[0034] Figure 4 This is a schematic diagram of the front cross-sectional structure of a double-ended external thread connector for a hose proposed by the present invention;

[0035] Figure 5 This is a schematic diagram of the enlarged structure of part C of a double-ended external thread connector for a hose proposed by the present invention;

[0036] Figure 6 This is a schematic diagram of a top cross-sectional structure of a double-ended external thread connector for a hose proposed by the present invention;

[0037] Figure 7 This is a schematic diagram of the enlarged structure of part D of a double-ended external thread connector for a hose proposed by the present invention.

[0038] Legend: 1. Main through-pipe; 2. Connecting pipe; 3. Pressure relief assembly; 301. First shell; 302. Second shell; 303. Sealing block; 304. Air inlet; 305. Second channel; 306. Sealing ring; 307. Connecting column; 308. Sliding rod; 309. First spring; 310. Mounting seat; 311. Bolt; 312. First air outlet; 313. First channel; 314. Second air outlet; 315. Button cap; 4. Clamping assembly; 401. Sliding ring; 402. Clamping block; 403. Rotating ring; 404. Second spring; 405. Connecting bracket; 406. Extrusion wheel; 407. Extrusion ring; 408. Connecting rod; 409. Mounting groove; 410. Connecting shaft; 411. Adjusting screw; 412. Connecting seat; 413. Sliding block; 414. Slide groove. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0040] See also Figure 1-7 , the present invention provides a technical solution:

[0041] A double-ended external thread connector for a hose comprises a main tube 1, with connector tubes 2 fixedly connected on both sides of the main tube 1, a clamping assembly 4 being transmission-connected to the outer surface of the main tube 1, a pressure relief assembly 3 being fixedly connected to one side of the main tube 1, a nut being embedded in the top of the first shell 301, and a bolt 311 being connected to the inner thread of the nut, a button cap 315 being fixedly connected to the top of the bolt 311, and a connecting seat 412 being fixedly connected to the end of the bolt 311 away from the button cap 315.

[0042] The specific implementation method is: by setting a bolt 311 and rotating the bolt 311, the rotation of the bolt 311 drives the connecting seat 412 to move, so that the distance between the connecting seat 412 and the connecting column 307 changes, thereby changing the compression amount of the first spring 309, and causing the pressure of the first spring 309 on the connecting column 307 to change, thereby changing the pressure relief critical value of the connecting column 307, so that the safety air pressure value inside the hose can be artificially set.

[0043] The clamping assembly 4 includes two sliding rings 401, which are slidably connected to the outer surface of the main through-tube 1, and the inner side of the sliding ring 401 is in contact with the outer surface of the main through-tube 1. One side of the sliding ring 401 is fixedly connected to an extrusion ring 407, which is slidably connected to the outer surface of the main through-tube 1, and the inner side of the extrusion ring 407 is in contact with the outer surface of the main through-tube 1. The side of the extrusion ring 407 away from the sliding ring 401 is in contact with two extrusion wheels 406, and the two extrusion wheels 406 are moved along the main through-tube. 1 axis position is symmetrically distributed, the side of the extrusion wheel 406 away from the extrusion ring 407 is fixedly connected to the connecting rod 408, both sides of the connecting rod 408 are hinged with a connecting bracket 405 through a pin shaft, the connecting bracket 405 is fixedly connected to the outer surface of the main through-tube 1, the end of the connecting rod 408 away from the extrusion wheel 406 is fixedly connected to the clamping block 402, and the inside of the clamping block 402 is fixedly connected to the flexible pad, the cross-section shape of the clamping block 402 and the flexible pad are both semi-annular, the main through-tube 1 The second spring 404 is provided with a mounting groove 409 on both sides of both ends, and the second spring 404 is fixedly connected to the bottom of the inner wall of the mounting groove 409 and one side of the connecting rod 408 respectively. The main through-tube 1 is provided with a sliding groove 414 on both sides of the main through-tube 1. The sliding ring 401 is fixedly connected with a slider 413 on both sides. The slider 413 is slidably connected in the sliding groove 414. The cross-sectional shapes of the slider 413 and the sliding groove 414 are both T-shaped, and the slider 413 slides tightly with the sliding groove 414. An adjusting screw 411 is threadedly connected to one side of the sliding ring 401, and a connecting shaft 410 is fixedly connected between the two adjusting screws 411. The center position of the connecting shaft 410 is clamped with a rotating ring 403. The two sides of the connecting shaft 410 are rotatably connected to the mounting seat 310. The bottom of the mounting seat 310 is fixedly connected to the outer surface of the main through-tube 1. The two adjusting screws 411 are symmetrically distributed along the center position of the connecting shaft 410, and the thread directions of the two adjusting screws 411 are opposite.

[0044] The specific implementation method is as follows: by setting up a clamping assembly 4, the rotating ring 403 drives the adjusting screws 411 on both sides to rotate through the connecting shaft 410, the adjusting screw 411 drives the extrusion ring 407 to move on the outer surface of the main pipe 1 through the sliding ring 401, the extrusion ring 407 drives the extrusion wheel 406 to move, the extrusion wheel 406 drives the connecting rod 408 to rotate around the pin shaft, and the connecting rod 408 drives the clamping block 402 to approach the joint pipe 2 and clamp and limit the outer side of the hose.

[0045] The pressure relief assembly 3 includes a first shell 301, the bottom of the first shell 301 is fixedly connected to the top of the main through-tube 1, an air inlet 304 is provided at the bottom of the first shell 301, the air inlet 304 is communicated with the inner cavity of the main through-tube 1, a groove is provided at the bottom of the connecting seat 412, and a slide rod 308 is slidably connected in the groove, a connecting column 307 is fixedly connected to the bottom of the slide rod 308, a first spring 309 is sleeved on the outer surface of the slide rod 308, and the two ends of the first spring 309 are respectively fixedly connected to the bottom of the connecting seat 412 and the top of the connecting column 307, the inner cavity of the first shell 301 is fixedly connected to the second shell 302, the bottom of the second shell 302 is embedded with a sealing ring 306, and the connecting seat 412 is connected to the sealing ring 306. The ring 306 is slidably connected, and a sealing block 303 is fixedly connected to the bottom of the connecting column 307. The sealing block 303 fits with the air inlet 304. A second channel 305 is opened between the first shell 301 and the second shell 302. The top of the second channel 305 is connected with multiple second air outlets 314. The second channel 305 is connected to the air inlet 304. A first channel 313 is opened in the inner cavity of the second shell 302. Multiple first air outlets 312 are opened on the top of the second shell 302. The first channel 313 is connected with the first air outlet 312, and the first channel 313 is connected with the air inlet 304. The sealing block 303 is a flexible plastic block, and the cross-sectional shape of the sealing block 303 is circular.

[0046] The specific implementation method is as follows: by setting a pressure relief component 3, the air pressure in the hose just exceeds the critical value of the pressure relief component 3, the sealing block 303 is separated from the air inlet 304 under the action of air pressure, the second channel 305 is connected to the air inlet 304 and the gas in the hose is discharged from the second air outlet 314, thereby achieving the effect of pressure relief. If the air pressure generated in the hose is too large, the connecting column 307 is displaced upward and slides into the second shell 302 under the action of air pressure, and the first channel 313 and the second channel 305 are both connected to the air inlet 304. At this time, the first air outlet 312 and the second air outlet 314 can both discharge gas, thereby achieving the effect of rapid pressure relief.

[0047] Working principle: During use, after the user inserts and connects one end of the hose to the joint pipe 2, the staff rotates the rotating ring 403, and the rotating ring 403 drives the connecting shaft 410 to rotate, and the connecting shaft 410 drives the adjusting screws 411 on both sides to rotate, and the adjusting screws 411 drive the sliding ring 401 to move toward both sides. During this process, the slider 413 slides in the sliding groove 414 to prevent the sliding ring 401 from offsetting and rotating. The sliding ring 401 drives the extrusion ring 407 to move on the outer surface of the main through pipe 1, and the extrusion ring 407 drives the extrusion wheel 406 to move. The extrusion wheel 406 drives the connecting rod 408 to rotate around the pin shaft, and the connecting rod 408 drives the clamping block 402 to approach the joint pipe 2 and clamp and limit the outside of the hose.

[0048] The staff first rotates the button cap 315, which drives the bolt 311 to rotate. The bolt 311 drives the connecting seat 412 to move and changes the compression of the first spring 309, so that the connecting block is subjected to the pressure change of the first spring 309, thereby changing the pressure on the top of the connecting column 307, thereby changing the pressure relief threshold of the connecting column 307. When the hose is conveying gas, if the internal flow rate is too high, resulting in excessive pressure in the hose, at this time, the gas in the hose pushes the sealing block 303 to move upward, and the sealing block 303 drives the connecting column 307 to move upward in the sealing ring 306, and the connecting column 307 is compressed. 07 drives the slide bar 308 to slide upward in the groove of the connecting seat 412, the distance between the connecting seat 412 and the connecting column 307 becomes smaller, and the first spring 309 is squeezed. At this time, the sealing block 303 is connected with the air inlet 304, and the gas in the hose is discharged from the second air outlet 314 through the second channel 305. If the air pressure in the hose rises too quickly and the air pressure in the hose is too high, under the action of the air pressure, the connecting block slides completely into the second shell 302. At this time, the air inlet 304 is connected with the first channel 313 and the second channel 305 at the same time, and the first air outlet 312 and the second air outlet 314 are depressurized at the same time.

[0049] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A double-ended outer thread connector for a hose, comprising a main through-tube (1), characterized in that: Both sides of the main through-tube (1) are fixedly connected to joint pipes (2); the outer surface of the main through-tube (1) is drivingly connected to a clamping assembly (4); and one side of the main through-tube (1) is fixedly connected to a pressure relief assembly (3); The clamping assembly (4) includes two sliding rings (401), the sliding rings (401) are slidably connected to the outer surface of the main tube (1), the inner side of the sliding rings (401) is in contact with the outer surface of the main tube (1), one side of the sliding ring (401) is fixedly connected to an extrusion ring (407), the extrusion ring (407) is slidably connected to the outer surface of the main tube (1), the inner side of the extrusion ring (407) is in contact with the outer surface of the main tube (1), and the side of the extrusion ring (407) away from the sliding ring (401) is in contact with two extrusion wheels (406), and the two extrusion wheels (407) are fixedly connected to the outer surface of the main tube (1). 06) are symmetrically distributed along the axis of the main through-tube (1), the side of the extrusion wheel (406) away from the extrusion ring (407) is fixedly connected to a connecting rod (408), both sides of the connecting rod (408) are hinged with connecting brackets (405) through pins, the connecting brackets (405) are fixedly connected to the outer surface of the main through-tube (1), the end of the connecting rod (408) away from the extrusion wheel (406) is fixedly connected to a clamping block (402), and a flexible pad is fixedly connected inside the clamping block (402), and the cross-section shape of the clamping block (402) and the flexible pad are both semi-annular; Both ends of the main through pipe (1) are provided with sliding grooves (414), both sides of the sliding ring (401) are fixedly connected with sliders (413), the sliders (413) are slidably connected in the sliding grooves (414), the cross-sections of the sliders (413) and the sliding grooves (414) are both T-shaped, and the sliders (413) and the sliding grooves (414) slide tightly; One side of the sliding ring (401) is threadedly connected to an adjusting screw (411), and a connecting shaft (410) is fixedly connected between the two adjusting screws (411). A rotating ring (403) is clamped at the center of the connecting shaft (410). Both sides of the connecting shaft (410) are rotatably connected to connecting seats (412), and the bottom of the connecting seat (412) is fixedly connected to the outer surface of the main through pipe (1).

2. A double-ended outer thread connector for a hose according to claim 1, characterized in that: Both ends of the main through pipe (1) are provided with mounting grooves (409), a second spring (404) is provided in the mounting groove (409), and both ends of the second spring (404) are fixedly connected to the bottom of the inner wall of the mounting groove (409) and one side of the connecting rod (408), respectively.

3. The double-ended male thread connector for a hose according to claim 1, characterized in that: The two adjusting screws (411) are symmetrically distributed along the center of the connecting shaft (410), and the thread directions of the two adjusting screws (411) are opposite.

4. The double-ended male thread connector for a hose according to claim 1, characterized in that: The pressure relief assembly (3) comprises a first shell (301), the bottom of the first shell (301) is fixedly connected to the top of the main tube (1), an air inlet (304) is provided at the bottom of the first shell (301), the air inlet (304) is communicated with the inner cavity of the main tube (1), a nut is embedded in the top of the first shell (301), and a bolt (311) is connected to the inner thread of the nut, the top of the bolt (311) is fixedly connected to a button cap (315), and one end of the bolt (311) away from the button cap (315) is fixedly connected to a mounting seat (310), and the mounting seat ( A groove is provided at the bottom of the housing (310), and a slide rod (308) is slidably connected in the groove, the bottom of the slide rod (308) is fixedly connected to a connecting column (307), the outer surface of the slide rod (308) is sleeved with a first spring (309), the two ends of the first spring (309) are respectively fixedly connected to the bottom of the mounting seat (310) and the top of the connecting column (307), the inner cavity of the first shell (301) is fixedly connected to the second shell (302), the bottom of the second shell (302) is embedded with a sealing ring (306), and the mounting seat (310) is slidably connected to the sealing ring (306).

5. The double-ended male thread connector for a hose according to claim 4, characterized in that: A sealing block (303) is fixedly connected to the bottom of the connecting column (307), and the sealing block (303) is in contact with the air inlet (304).

6. The double-ended male thread connector for a hose according to claim 4, characterized in that: A second channel (305) is provided between the first shell (301) and the second shell (302), a top of the second channel (305) is connected to a plurality of second air outlets (314), and the second channel (305) is connected to the air inlet (304).

7. The double-ended male thread connector for a hose according to claim 4, characterized in that: A first channel (313) is provided in the inner cavity of the second shell (302), a plurality of first air outlets (312) are provided on the top of the second shell (302), the first channel (313) is connected to the first air outlets (312), and the first channel (313) is connected to the air inlet (304).

8. The double-ended male thread connector for a hose according to claim 5, characterized in that: The sealing block (303) is a flexible plastic block, and the cross-section of the sealing block (303) is circular.

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