A high sealing quick connector

Abstract

The present application relates to the technical field of hose and steel element connection, in particular to a high sealing quick connector, which comprises a tee head, an adapter and a hose connector, one end of the tee head is a polished rod, a clamping groove is formed on the outer circumferential surface of the polished rod, the adapter comprises a pipeline assembly, a containing cavity formed at the end of the pipeline assembly, and a buckle member movably installed in the containing cavity, when the two ends of the buckle member in the horizontal direction are close to each other, the two ends of the buckle member in the vertical direction are away from each other, when the polished rod is located in the buckle member and the end thereof is attached to the pipeline assembly, the two ends of the buckle member in the vertical direction are buckled with the clamping groove, the hose connector comprises a male member in interference fit with the end of the pipeline assembly and a female member sleeved on the end of the male member, a placing groove is formed on the female member, a stop rod is installed in the placing groove, and a clamping strip is fixedly installed on the outer circumferential surface of the male member.

Description

Technical Field

[0001] This invention relates to the field of hose and rigid component connection technology, and specifically to a high-sealing quick-connect fitting. Background Technology

[0002] Quick-connect couplings are the most convenient plug-and-play connection devices, especially in situations where air pipe connections are inconvenient or difficult to access, where their superiority is even more apparent.

[0003] Currently, in the development of complete vehicles and electric vehicles, in order to meet the design requirements of high range and make more space in the battery pack to arrange the cells, quick-connect connectors are used in the cooling water circuit to replace the installation of ordinary threaded sealing structure clutch hard pipe and clutch soft pipe, so as to improve the volume utilization rate.

[0004] However, most quick-connect fittings on the market require pre-treatment of the hose end when directly installing the hose onto the tee head, especially tee heads with a smooth rod. They cannot directly and quickly install the hose onto the smooth rod of the tee head for connection with a high degree of sealing.

[0005] The information disclosed in the background section is only intended to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to design a method that allows for the quick and highly sealed installation of a hose onto the smooth rod of a tee head without requiring any treatment of the hose end, thereby addressing the aforementioned shortcomings in the technology.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-sealing quick-connect fitting for quick connection of a hose and a tee, comprising a tee, an adapter, and a hose plug. One end of the tee is a smooth rod with a groove on its outer circumference. The adapter includes a pipe assembly, a receiving cavity at the end of the pipe assembly, and a snap-fit ​​component movably installed within the receiving cavity. When the two ends of the snap-fit ​​component are close to each other in the horizontal direction, the two ends of the snap-fit ​​component are far apart in the vertical direction. When the smooth rod is located within the snap-fit ​​component and its end is in contact with the pipe assembly, the two ends of the snap-fit ​​component in the vertical direction are snap-fitted to the groove. The hose plug includes a male component that is interference-fitted with the end of the pipe assembly and a female component fitted onto the end of the male component. The female component has a placement groove with a stop rod installed in the placement groove. A retaining strip is fixedly installed on the outer circumference of the male component.

[0008] When the inner and outer circumferential surfaces of the hose come into contact with the outer circumferential surface and the inner circumferential surface of the male fitting, respectively, they are clamped. The retaining strip inside the hose contacts the side wall of the stop rod, preventing the male fitting from being pulled out of the female fitting. Through the snap-fit ​​connection of the snap-fit ​​parts and the slot, combined with the interference fit between the pipe assembly and the male fitting, the connection between the hose and the tee is quickly completed.

[0009] Preferably, the receiving cavity includes a horizontal through groove formed at the end of the pipe assembly and two vertical blind grooves formed on the inner circumferential surface of the pipe assembly.

[0010] Preferably, the fastening component includes two pressing blocks slidably installed in the horizontal through groove, two upper and lower elastic pieces fixedly installed between the two pressing blocks, and a fastening block fixedly installed at opposite ends of the two elastic pieces, the fastening blocks being slidably connected in the vertical blind groove.

[0011] Preferably, a chamfer is formed between the vertical blind groove and the horizontal through groove, and the length of the elastic sheet is greater than the maximum outer diameter of the pipe assembly.

[0012] Preferably, the pipe assembly includes a first connector and a second connector, the receiving cavity is formed in the first connector, a plurality of positioning plates arranged in a ring array are fixedly installed on the end of the first connector near the second connector, the positioning plates have positioning holes passing through them, and a plurality of wedge-shaped blocks that cooperate with the positioning holes are fixedly installed on the outer peripheral surface of the second connector.

[0013] Preferably, a plurality of guide rods, the same number as the positioning pieces, are fixedly installed on the outer peripheral surface of the second connector. A guide groove is formed between the plurality of positioning pieces and slidably connected to the guide rods. A plurality of first sealing rings are installed between the first connector and the second connector. When the wedge block is snapped into the positioning hole, the end of the smooth rod is inserted into the first sealing ring to achieve sealing.

[0014] Preferably, a second sealing ring is fixedly installed on the outer peripheral surface of the second connector, and the second sealing ring is interference-fitted with the inner peripheral surface of the male component.

[0015] Preferably, the stop rod includes two vertical rods, a connecting rod fixedly connected between the top ends of the two vertical rods, and a right-angle rod fixedly installed at the bottom end of the vertical rods. The diameter of the outer circumference of the male part that is fixedly installed on the clip is the same as the distance between the two vertical rods. The placement groove includes a right-angle groove and an arc groove opened on the female part. The right-angle rod is located in the right-angle groove, and the vertical rod is located in the arc groove.

[0016] Preferably, the cross-section of the clip is a right-angled triangle, a buckle piece is fixedly installed on the female part, and a stop bar that cooperates with the buckle piece is fixedly installed on the outer periphery of the male part.

[0017] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0018] This invention allows for the rapid and highly sealed connection of a tee head with a smooth rod and a hose by quickly installing a hose plug at the end of the hose and then quickly installing an adapter on the smooth rod of the tee head. No pretreatment of the hose is required.

[0019] This invention utilizes the cooperation between the receiving cavity and the snap fastener on the adapter. After the snap fastener and the slot on the rod are connected, the tee and the adapter can be prevented from separating from each other, achieving the purpose of quick plug-in installation. When it is necessary to disconnect the hose and the tee, simply press the two pressing blocks close to each other to drive the snap fastener and the slot to separate, thereby quickly completing the disconnection operation.

[0020] Meanwhile, this invention only requires inserting the end of the hose through the ring of the female part, then wrapping the hose around the retaining strip of the male part, with the end of the hose contacting the side of the stop bar. Then, press the male part into the female part until the stop bar restricts the part of the retaining strip that protrudes from the hose. At this time, the outer circumferential surface between the retaining strip and the stop ring on the male part will cooperate with the inner circumferential surface of the ring to clamp and seal the hose, which can quickly complete the purpose of connecting the hose and the hose plug. The stop bar can be removed from the placement groove to complete the separation and disconnection operation of the hose and the hose plug.

[0021] Compared with the prior art, which involves sleeveding the flexible tubing over the smooth rod of the tee head and then clamping it with a clamping structure or wrapping it with steel wire, this invention not only improves the sealing performance but also simplifies the operation, requiring only plugging in. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a perspective view of the three-way connector of the present invention;

[0025] Figure 3 This is a cross-sectional view of the tee connector of the present invention;

[0026] Figure 4 This is an exploded view of the adapter of the present invention;

[0027] Figure 5This is a schematic diagram of the adapter installation of the present invention;

[0028] Figure 6 This is an exploded view of the pipe assembly of the present invention;

[0029] Figure 7 This is a schematic diagram of the installation of the pipe assembly of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. T-joint; 10. Polished rod; 11. Slot; 2. Adapter; 20. Pipe assembly; 201. First connector; 202. Second connector; 203. Positioning piece; 204. Positioning hole; 205. Wedge block; 206. Guide rod; 207. Guide groove; 208. First sealing ring; 209. Second sealing ring; 21. Receiving cavity; 211. Horizontal through groove; 212. Vertical blind groove; 2 2. Fastener; 221. Pressing block; 222. Elastic sheet; 223. Fastening block; 3. Hose plug; 30. Male part; 301. Locking strip; 302. Stop bar; 31. Female part; 311. Placement groove; 3110. Right angle groove; 3111. Arc groove; 312. Stop bar; 3120. Vertical bar; 3121. Connecting bar; 3122. Right angle bar; 313. Ring; 314. Fastening piece. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0034] This invention provides, for example Figure 1-7The diagram shows a high-sealing quick-connect fitting for quick and high-sealing assembly and disassembly of a hose and a tee head 1. The fitting includes a tee head 1, one end of which is a smooth rod 10. A groove 11 is formed on the outer circumferential surface of the smooth rod 10. A female part 31 is fitted onto the hose. A ring 313 is fixedly installed on the inner circumferential surface of the female part 31. When the hose is inserted into and passes through the ring 313, the outer circumferential surface of the hose fits against the inner circumferential surface of the ring 313. A placement groove 311, consisting of two right-angled grooves 3110 and two arc-shaped grooves 3111, is formed on the female part 31. The right-angle groove 3110 has a right-angle rod 3122, and the arc-shaped groove 3111 has a vertical rod 3120. A connecting rod 3121 is fixedly installed between the ends of the two vertical rods 3120 away from the right-angle rod 3122. The vertical rod 3120, the connecting rod 3121, and the right-angle rod 3122 form a stop rod 312 placed in the placement groove 311. A male part 30 is located in one end of the female part 31. When the male part 30 is located in the female part 31, the inner circumference of the hose is close to the outer circumference between the retaining strip 301 and the stop rod 302 on the male part 30. As the male component 30 is inserted deeper into the female component 31, the outer circumferential surface of this part of the male component 30 will cooperate with the ring 313 to clamp the hose. At the same time, multiple retaining strips 301 are fixedly installed on the outer circumferential surface of the male component 30 near the female component 31. When the vertical rod 3120 contacts the side of the retaining strip 301 and the vertical rod 3120 is located between the retaining strip 301 and the stop rod 302, the stop rod 312 restricts the retaining strip 301 from moving from the female component 31 to the male component 30 within the placement groove 311, thereby preventing the male component 30 from being pulled out of the female component 31. The female part 31 and the male part 30 together form a hose plug 3 that quickly clamps and seals the end of the hose. At the same time, in order to prevent the male part 30 from being inserted too deeply into the female part 31, a stop bar 302 is fixedly installed on the outer circumference of the male part 30. A corresponding latching piece 314 is fixedly installed on the female part 31. Because the cross-section of the latching strip 301 is a right triangle, the latching piece 314 can prevent the latching strip 301 from being pulled out of the female part 31, but cannot prevent the latching strip 301 from passing through the latching pieces 314 and entering the female part 31.

[0035] At this point, the end of the hose has been clamped and sealed. Therefore, we install a quick-connect adapter 2 between the tee connector 1 and the hose plug 3. The adapter 2 includes a first connector 201 that quickly connects to the smooth rod 10 of the tee connector 1, and a second connector 202 that quickly connects to the male connector 30. The first connector 201 has a receiving cavity 21 formed by a horizontal through groove 211 and two vertical blind grooves 212. A chamfer is formed on the first connector 201 between the vertical blind grooves 212 and the horizontal through groove 211, allowing it to slide within the horizontal through groove 211. There are two symmetrically distributed pressing blocks 221, and two symmetrically distributed metal elastic sheets 222 are fixedly installed between the two pressing blocks 221. Each of the two metal elastic sheets 222 has a locking block 223 fixedly installed at its opposite end. The locking block 223, elastic sheet 222, and pressing block 221 constitute a locking component 22 for locking the outer peripheral surface groove 11 of the light rod 10. Multiple positioning pieces 203 arranged in a circular array are fixedly installed at the end of the first connecting member 201 near the second connecting member 202. Positioning holes 204 penetrate the positioning pieces 203. Multiple wedge-shaped blocks 205 that mate with positioning holes 204 are fixedly installed on the outer peripheral surface of the second connector 202. Simultaneously, multiple guide rods 206 corresponding to the number of positioning pieces 203 are fixedly installed on the outer peripheral surface of the second connector 202. Guide grooves 207 are formed between the positioning pieces 203, which slide in connection with the guide rods 206. To ensure a tight seal when the first connector 201 and the second connector 202 are snapped together, multiple first sealing rings 208 are installed between the first connector 201 and the second connector 202. To ensure a tight seal between the second connector 202 and the male connector... To ensure sealing, a second sealing ring 209 is fixedly installed on the outer circumferential surface of the second connector 202. The second sealing ring 209 and the inner circumferential surface of the male part 30 are interference-fitted. Here, the first connector 201 and the second connector 202 constitute the pipe assembly 20. The pipe assembly 20, the receiving cavity 21 and the fastener 22 constitute the adapter 2. The length of the elastic piece 222 is greater than the maximum outer diameter of the pipe assembly 20, thereby ensuring that the elastic piece 222 applies a spring force that moves away from each other to the two pressing blocks 221, so that the two fastener blocks 223 move closer to each other and clamp the slot 11.

[0036] When using this quick-connect fitting, directly align the smooth rod 10 on the tee head 1 between the two locking blocks 223 and insert it into the first connector 201. When the end of the smooth rod 10 contacts the sealing plate on the first connector 201, the end of the smooth rod 10 is inserted into the first sealing ring 208 to achieve a seal. The locking block 223 is located in the slot 11, preventing the smooth rod 10 from being pulled out of the first connector 201, thereby quickly connecting the tee head 1 to the adapter 2. Then, pull the male part 30 outwards towards the female part 31 until the locking strip 301 and the locking piece 314 contact each other. Then, insert the end of the flexible hose into the ring 313 of the female part 31 and pass through it. Then, put the flexible hose over the locking strip 301, and the end of the flexible hose is aligned with the stop bar. The sidewalls of 302 are fitted together, and then the female part 31 is moved on the hose toward the male part 30, causing the male part 30 to be inserted into the female part 31. The outer circumferential surface of the male part 30 cooperates with the inner circumferential surface of the ring 313 to clamp the hose. At this time, the stop rod 312 will be located between the locking strip 301 and the stop rod 302, and the middle part of the vertical rod 3120 will enter the female part 31 through the arc groove 3111 and contact the locking strip 301. The placement groove 311 restricts the locking strip 301 from being pulled out of the female part 31, thereby restricting the male part 30 from being pulled out of the female part 31. In this way, the hose is quickly connected to the hose plug 3. Then the second connector 202 is inserted into the male part 30 to complete the connection between the hose and the tee head 1.

[0037] When it is necessary to separate the tee head 1 and the hose, simply pry the stop rod 312 into the placement groove 311, and then pull the male part 30 out of the female part 31 until the locking strip 301 contacts the locking piece 314. Then the hose can be quickly removed from the pipe assembly 20. Alternatively, the two pressing blocks 221 can be pressed to bring them closer together. At this time, the pressing block 221 will cause the elastic piece 222 to deform into an arch with a larger bending amplitude. The elastic piece 222 will cause the two locking blocks 223 to move away from each other and move out of the slot 11 without being locked. At this time, the bare rod 10 can be pulled out from between the two locking blocks 223.

[0038] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application.

Claims

1. A high-sealing quick-connect fitting for quick connection of a hose and a tee (1), characterized in that: The device includes a tee (1), an adapter (2), and a hose plug (3). One end of the tee (1) is a smooth rod (10), and a groove (11) is opened on the outer circumference of the smooth rod (10). The adapter (2) includes a pipe assembly (20), a receiving cavity (21) opened at the end of the pipe assembly (20), and a fastener (22) movably installed in the receiving cavity (21). When the two ends of the fastener (22) are close to each other in the horizontal direction, the two ends of the fastener (22) are far apart in the vertical direction. When the smooth rod (10) is located in the fastener (22) and its end is in contact with the pipe assembly (20), the two ends of the fastener (22) in the vertical direction are fastened to the groove (11). The hose plug (3) includes a male part that is interference-fitted with the end of the pipe assembly (20). (30) and the female part (31) sleeved at the end of the male part (30), the inner circumferential surface of the female part (31) is fixedly connected with a ring (313), the female part (31) is provided with a placement groove (311), a stop rod (312) is installed in the placement groove (311), a clip (301) is fixedly installed on the outer circumferential surface of the male part (30), a buckle piece (314) is fixedly installed on the female part (31), a stop rod (302) that cooperates with the buckle piece (314) is fixedly installed on the outer circumferential surface of the male part (30), the pipe assembly (20) includes a first connector (201) and a second connector (202), the outer circumferential surface of the second connector (202) is fixedly installed with a second sealing ring (209), the second sealing ring (209) is interference fit with the inner circumferential surface of the male part (30); When the inner and outer circumferential surfaces of the hose come into contact with the outer circumferential surface of the male part (30) and the inner circumferential surface of the ring (313) respectively, they are clamped. The retaining strip (301) inside the hose contacts the side wall of the stop rod (312), restricting the male part (30) from being pulled out of the female part (31). Through the snap-fit ​​connection of the snap-fit ​​part (22) and the snap-fit ​​groove (11), combined with the interference fit of the pipe assembly (20) and the male part (30), the connection between the hose and the tee head (1) is quickly completed.

2. The high-sealing quick-connect coupling according to claim 1, characterized in that: The receiving cavity (21) includes a horizontal through groove (211) formed at the end of the pipe assembly (20) and two vertical blind grooves (212) formed on the inner circumferential surface of the pipe assembly (20).

3. A high-sealing quick-connect coupling according to claim 2, characterized in that: The fastener (22) includes two pressing blocks (221) that are slidably installed in the horizontal through groove (211), two upper and lower elastic pieces (222) that are fixedly installed between the two pressing blocks (221), and a fastener (223) that is fixedly installed at opposite ends of the two elastic pieces (222). The fastener (223) is slidably connected in the vertical blind groove (212).

4. A high-sealing quick-connect coupling according to claim 3, characterized in that: A chamfer is formed between the vertical blind groove (212) and the horizontal through groove (211), and the length of the elastic sheet (222) is greater than the maximum outer diameter of the pipe assembly (20).

5. A high-sealing quick-connect coupling according to claim 1, characterized in that: The receiving cavity (21) is opened in the first connector (201). The first connector (201) has a plurality of positioning pieces (203) arranged in a ring array fixedly installed at one end near the second connector (202). The positioning pieces (203) have positioning holes (204) passing through them. The second connector (202) has a plurality of wedge-shaped blocks (205) that cooperate with the positioning holes (204) fixedly installed on its outer peripheral surface.

6. A high-sealing quick-connect coupling according to claim 5, characterized in that: The second connector (202) has multiple guide rods (206) fixedly installed on its outer peripheral surface, the same number as the positioning pieces (203). The multiple positioning pieces (203) form guide grooves (207) that are slidably connected to the guide rods (206). Multiple first sealing rings (208) are installed between the first connector (201) and the second connector (202). When the wedge block (205) is snapped into the positioning hole (204), the end of the light rod (10) is inserted into the first sealing ring (208) to achieve sealing.

7. A high-sealing quick-connect coupling according to claim 1, characterized in that: The stop rod (312) includes two vertical rods (3120), a connecting rod (3121) fixedly connected between the top ends of the two vertical rods (3120), and a right-angle rod (3122) fixedly installed at the bottom end of the vertical rods (3120). The diameter of the outer circumference of the male part (30) fixedly installed on the clip (301) is the same as the distance between the two vertical rods (3120). The placement groove (311) includes a right-angle groove (3110) and an arc groove (3111) opened on the female part (31). The right-angle rod (3122) is located in the right-angle groove (3110), and the vertical rod (3120) is located in the arc groove (3111).

8. A high-sealing quick-connect coupling according to claim 1, characterized in that: The cross-section of the card strip (301) is a right triangle.

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