Quick-release hydraulic hose connector capable of preventing loosening and falling

Abstract

The invention belongs to the technical field of hose connectors, and discloses an anti-loosening and anti-falling quick-release hydraulic hose connector which comprises a first connector pipe, a second connector pipe, a hydraulic hose body, a first splicing pipe and a second splicing pipe. The far ends of the first connector pipe and the second connector pipe are both provided with hydraulic hose bodies in a penetrating mode, and the far ends of the first connector pipe and the second connector pipe are both provided with first movable pipes in a penetrating mode. According to the quick-release hydraulic hose connector capable of preventing loosening and falling off, the hydraulic hose body is connected with the first connector pipe and the second connector pipe through the clamping structure, and a ratchet wheel structure is arranged in a matched mode, so that the situation of loosening after connection between the positioning pipe and the first connector pipe and between the positioning pipe and the second connector pipe can be avoided, and the connection stability is improved; and in cooperation with the quick clamping structure, the first splicing pipe and the second splicing pipe can be quickly connected, and the disassembly and assembly convenience is improved.

Description

Technical Field

[0001] The invention relates to the technical field of hose connectors, in particular to a quick-detachable hydraulic hose connector which is anti-loosening and falling off. Background Art

[0002] Hydraulic hose is also known as hydraulic oil pipe, hydraulic hose, high-pressure hose, hydraulic pipe, steel wire high-pressure hose, steel wire braided hose, and wire winding hose. It is generally divided into steel wire braided hydraulic hose and steel wire winding hydraulic hose. Hydraulic hose is mainly composed of liquid-resistant inner rubber layer, middle rubber layer, 2 or 4 or 6 layers of steel wire winding reinforcement layer, and outer rubber layer. The inner rubber layer has the function of making the conveying medium withstand pressure and protecting the steel wire from erosion. The outer rubber layer protects the steel wire from damage. The steel wire layer is the skeleton material that plays a reinforcing role. When connecting hydraulic hoses, hose connectors are required for connection.

[0003] However, there are still some problems when using the existing quick-release hydraulic hose connectors that prevent loosening and falling off: There is a hydraulic hose connector with Chinese patent application number CN202210317665.X, which includes a hose, a threaded sleeve, a buckling connector and an anti-slip nut. The buckling connector is threadedly matched with the threaded sleeve, and the hose is buckled and clamped between the threaded sleeve and the buckling connector, and the connecting end surface of the threaded sleeve and the buckling connector is closely attached to the side end surface of the annular rubber anti-slip part in the compartment. The buckling connector has a buckling slope adapted to the connecting end of the hose; The existing hydraulic hose connector cannot effectively and reliably connect the hydraulic hose when in use. Because the hydraulic hose will vibrate when in use, it is easy to cause the hydraulic hose to loosen and fall off after long-term use, thereby causing hydraulic oil leakage; The existing hydraulic hose connectors have poor reliability when connected and have no anti-loosening function. At the same time, the existing hose connectors are inconvenient to operate when connected and are not convenient for quick and convenient connection.

[0004] In view of the above problems, an innovative design is carried out on the basis of the original anti-loosening and falling-off quick-release hydraulic hose connector. Summary of the invention

[0005] The object of the present invention is to provide a quick-release hydraulic hose connector that prevents loosening and falling off, so as to solve the problem that the existing hydraulic hose connectors mentioned in the above background technology have poor reliability when connected and have no anti-loosening function. At the same time, the existing hose connectors are inconvenient to operate when connected and are not convenient for quick and convenient connection. Because the hydraulic hose will vibrate when in use, it is easy to cause the hydraulic hose to loosen and fall off after long-term use, thereby causing hydraulic oil leakage.

[0006] To achieve the above object, the present invention provides the following technical solution: a quick-release hydraulic hose connector that prevents loosening and falling off, comprising a first connector pipe, a second connector pipe, a hydraulic hose body, a first splicing pipe and a second splicing pipe: A second joint pipe is arranged on the right side of the first joint pipe, and a hydraulic hose body is passed through the distal ends of the first joint pipe and the second joint pipe, and a first movable pipe is passed through the distal ends of the first joint pipe and the second joint pipe; The two groups of the first movable tubes are respectively slidably connected with the first joint tube and the second joint tube, and a positioning tube is fixed inside the first movable tube, and a sealing tube is fixed inside the two groups of the first movable tubes, and the sealing tube is designed in a conical structure, and the inner wall of the positioning tube is adapted to the outer wall of the sealing tube; A first splicing tube is fixed to the left end of the second joint tube, and a splicing groove is provided at the left end of the first splicing tube. A second splicing tube is fixed to the left end of the first joint tube, and a splicing protrusion is connected to the right end of the second splicing tube. The right end of the splicing protrusion is engaged and connected with the splicing groove. A first sealing ring is connected to the right end of the second splicing tube. A first positioning ring is fixed on the right side of the second splicing tube, and a positioning seat is fixed on the outside of the first positioning ring, and a splicing buckle is connected to the upper end of the positioning seat. A snap groove is opened on the left side outer wall of the first splicing tube, and the snap groove is snap-connected with the right side end of the splicing buckle.

[0007] Preferably, the outer walls of the two groups of positioning tubes are threaded, and the positioning tubes are threadedly connected to the first joint tube and the second joint tube respectively, the outer walls of the far ends of the first joint tube and the second joint tube are connected with ratchet rings, a limiting plate passes through the inside of the first movable tube, and the limiting plates are distributed in a ring array, the lower end of the limiting plate is designed as a wedge-shaped structure, and the lower end of the limiting plate is snap-connected with the ratchet ring.

[0008] By adopting the above technical solution, the first movable tube can be connected to the first joint tube and the second joint tube respectively through the positioning tube, and when connected, the positioning tube and the sealing tube cooperate to connect and seal with the hydraulic hose body, and the cooperation of the limit plate and the ratchet ring can prevent the threaded connection between the positioning tube and the first joint tube from loosening.

[0009] Preferably, the limit plate is slidably connected to the positioning tube, and positioning plates are fixed on both sides of the positioning tube, and a first limit rod passes through the middle of the positioning plate, both ends of the first limit rod are fixed to the inner wall of the positioning tube, and a first return spring passes through the upper end of the first limit rod, and the upper and lower ends of the first return spring are respectively fixedly connected to the inner wall of the positioning tube and the positioning plate.

[0010] By adopting the above technical solution, the cooperation of the first return spring and the first limit rod can push the limit plate and the positioning plate to move toward the center of the positioning tube, thereby maintaining the engagement between the limit plate and the ratchet ring, thereby avoiding loose connection between the positioning tube and the first and second joint tubes.

[0011] Preferably, a transmission plate is provided inside the positioning tube, a through groove is passed through the middle of the limit plate, and the transmission plate passes through the through groove, and the transmission plate passes through the outside of the positioning tube, the inner end of the transmission plate is designed as a slope, and a transmission disk is provided on the outside of the positioning tube, and the transmission disk is fixedly connected to the transmission plate.

[0012] By adopting the above technical solution, through the cooperation between the transmission plate and the through groove, when the transmission plate is pulled outward to drive the transmission plate to move outward, the limit plate can be driven to move toward the outer wall of the positioning tube, thereby releasing the engagement between the limit plate and the ratchet ring, thereby facilitating the release of the threaded connection between the positioning tube and the first and second joint tubes when disassembling and assembling the hydraulic hose body.

[0013] Preferably, a second sealing ring is connected to the right outer ring of the second splicing tube, and the right end of the second splicing tube is snap-connected to the first splicing tube, the positioning seat is rotatably connected to the splicing buckle, and the positioning seat and the splicing buckle are distributed in a circular array with the center of the first positioning ring as the axis, the right end of the splicing buckle extends into the inside of the snap-in groove, and the splicing buckle is snap-connected to the snap-in groove.

[0014] By adopting the above technical solution, the sealing performance of the connection between the first splicing tube and the second splicing tube can be improved through the design of the second sealing ring, and the first and second splicing tubes can be quickly connected by utilizing the cooperation between the splicing buckle and the splicing groove, thereby improving the convenience of splicing.

[0015] Preferably, a second positioning ring passes through the outside of the second splicing tube, and a fixing ring is provided at the left end of the second positioning ring, and the fixing ring is fixedly connected to the outer wall of the second splicing tube, a telescopic rod is fixed to the right end of the fixing ring, and the right end of the telescopic rod is fixedly connected to the inner wall of the second positioning ring, a second return spring is sleeved on the outside of the telescopic rod, and both ends of the second return spring are in contact with the fixing ring and the inner wall of the second positioning ring respectively.

[0016] Preferably, the telescopic rod and the second return spring are distributed in a circular array with the center point of the second positioning ring as the axis, a first limiting ring is fixed to the inner wall of the second positioning ring, and the first limiting ring is slidably connected to the outside of the second splicing tube, and the first limiting ring is in contact with the lower left end of the splicing buckle.

[0017] By adopting the above technical solution, through the cooperation between the telescopic rod and the second return spring, the second return spring can be used to push the second positioning ring to move to the right, and the first limit ring fixed inside the second positioning ring can be used to cooperate with the splicing buckle to limit its rotation, thereby preventing the buckle from being disconnected from the snap-fit ​​groove and causing separation between the first and second splicing tubes.

[0018] Preferably, a guide groove is provided at the upper left end of the splicing buckle, and the lower end surface of the guide groove is designed as a slope, a guide rod is fixed to the right inner wall of the second positioning ring, and the lower end of the guide rod extends into the guide groove, the lower end of the guide rod is fitted with the bottom of the guide groove, and the guide rods are distributed in a ring array.

[0019] By adopting the above technical solution, through the cooperation between the splicing buckle and the guide groove, when the second positioning ring moves to the right, it drives the guide rod to move to the right side of the guide groove and further restricts the rotation of the splicing buckle. When the second positioning ring drives the guide rod to move to the left, the inclined guide groove can push the splicing buckle to rotate, thereby releasing the engagement between the splicing buckle and the clamping groove, and the hydraulic hose connector can be quickly disassembled and assembled.

[0020] Preferably, a splicing sleeve is slidably connected to the left end of the first splicing tube, and a threaded groove is provided on the left inner wall of the splicing sleeve, second limiting rings are provided on both sides of the splicing sleeve, and the second limiting rings are fixedly connected to the outer wall of the first splicing tube, an external thread is provided on the right outer wall of the second positioning ring, and the right side of the second positioning ring is threadedly connected to the splicing sleeve through the external thread.

[0021] By adopting the above technical solution, the position of the second positioning ring can be fixed through the cooperation between the splicing sleeve and the second positioning ring, thereby limiting the movement of the second positioning ring and improving the connection reliability of the hydraulic hose connector.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: the anti-loosening and falling-off quick-release hydraulic hose connector connects the hydraulic hose body to the first and second joint pipes by providing a snap-fit ​​structure, and is provided with a ratchet structure, which can prevent the positioning pipe from loosening after connection with the first and second joint pipes, improve the stability of the connection, and prevent falling off due to loosening. In combination with the quick snap-fit ​​structure, the first and second splicing pipes can be quickly connected, thereby improving the convenience of disassembly and assembly.

[0023] 1. By setting multiple sets of splicing buckles and snap-in grooves, the first and second splicing tubes can be quickly snap-connected when they are butt-jointed, which is simple and convenient to operate. In addition, the second positioning ring and the first limiting ring structure are provided to limit the rotation of the buckle, thereby ensuring the reliability and stability of the connection; 2. Anti-loosening structures are respectively set for the connection of the hydraulic hose body, and anti-loosening structures are set between the first and second splicing pipes, which can have higher stability and sealing effect during connection, avoid loosening and leakage after long-term use, and are simple to operate and can be quickly disassembled and assembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the first splicing tube and the second splicing tube of the present invention; Figure 3 This is a schematic diagram of the structure of the first splicing tube and the first movable tube of the present invention; Figure 4 This is a schematic diagram of the structure of the first splicing tube and splicing groove of the present invention; Figure 5 It is a schematic diagram of the structure of the second joint pipe and the ratchet ring of the present invention; Figure 6 This is a schematic diagram of the structure of the first movable tube and the positioning tube of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram at A in the middle; Figure 8 This is a schematic diagram of the structure of the second splicing tube and the first sealing ring of the present invention; Fig. 9 This is a schematic diagram of the positioning seat and the splicing buckle structure of the present invention; Fig.10 It is a schematic diagram of the cross-sectional structure of the first joint pipe and the first movable pipe of the present invention; Fig.11 It is a schematic diagram of the structure of the second positioning ring and the first limiting ring of the present invention; Fig.12 For the present invention Fig.10 Enlarged structural diagram at A in the middle.

[0025] In the figure: 1, the first joint pipe; 2, the second joint pipe; 3, the hydraulic hose body; 4, the first movable pipe; 5, the positioning pipe; 6, the ratchet ring; 7, the limit plate; 8, the positioning plate; 9, the first limit rod; 10, the first return spring; 11, the transmission plate; 12, the transmission plate; 13, the first splicing pipe; 14, the splicing groove; 15, the second splicing pipe; 16, the splicing protrusion; 17, the first sealing ring; 18, the first positioning ring; 19, the positioning seat; 20, the splicing buckle; 21, the clamping groove; 22, the second positioning ring; 23, the fixing ring; 24, the telescopic rod; 25, the second return spring; 26, the first limit ring; 27, the guide groove; 28, the guide rod; 29, the external thread; 30, the splicing sleeve; 31, the second limit ring; 32, the sealing pipe; 33, the second sealing ring. DETAILED DESCRIPTION

[0026] 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 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 creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-12 The present invention provides a technical solution: a quick-release hydraulic hose connector that prevents loosening and falling off, comprising a first connector tube 1, a second connector tube 2, a hydraulic hose body 3, a first splicing tube 13 and a second splicing tube 15, a second connector tube 2 is arranged on the right side of the first connector tube 1, and the hydraulic hose body 3 is penetrated at the far ends of the first connector tube 1 and the second connector tube 2, and a first movable tube 4 is penetrated at the far ends of the first connector tube 1 and the second connector tube 2; two groups of first movable tubes 4 are respectively slidably connected with the first connector tube 1 and the second connector tube 2, and a positioning tube 5 is fixed inside the first movable tube 4, and a sealing tube 32 is fixed inside the two groups of first movable tubes 4, and the sealing tube 32 is designed in a conical structure, and the inner wall of the positioning tube 5 is adapted to the outer wall shape of the sealing tube 32; the outer walls of the two groups of positioning tubes 5 are provided with threads, and the positioning tubes 5 are respectively It is threadedly connected with the first joint tube 1 and the second joint tube 2, and the outer walls of the far ends of the first joint tube 1 and the second joint tube 2 are connected with a ratchet ring 6. The first movable tube 4 is penetrated by a limiting plate 7, and the limiting plates 7 are distributed in a ring array. The lower end of the limiting plate 7 is designed in a wedge-shaped structure, and the lower end of the limiting plate 7 is engaged with the ratchet ring 6; through the cooperation of the first joint tube 1, the second joint tube 2, the positioning tube 5 and the first movable tube 4, it is convenient to seal and connect the hydraulic hose body 3. The hydraulic hose body 3 is passed through the first joint tube 1 and the second joint tube 2. After the hydraulic hose body 3 is sleeved on the outside of the sealing tube 32, the first movable tube 4 is rotated to connect the positioning tube 5 with the inner walls of the first joint tube 1 and the second joint tube 2, so that the inner wall of the positioning tube 5 is engaged with the outer wall of the sealing tube 32, thereby sealing and fixing the hydraulic hose body 3.

[0028] The limiting plate 7 is slidably connected to the positioning tube 5, and positioning plates 8 are fixed on both sides of the positioning tube 5, and a first limiting rod 9 is passed through the middle of the positioning plate 8, and both ends of the first limiting rod 9 are fixed to the inner wall of the positioning tube 5, and a first return spring 10 is passed through the upper end of the first limiting rod 9, and the upper and lower ends of the first return spring 10 are respectively fixedly connected to the inner wall of the positioning tube 5 and the positioning plate 8; a transmission plate 11 is arranged inside the positioning tube 5, a through groove is passed through the middle of the limiting plate 7, and the transmission plate 11 passes through the through groove, and the transmission plate 11 passes through the outside of the positioning tube 5, the inner side end of the transmission plate 11 is designed with an inclined surface, and a transmission disk 12 is arranged on the outside of the positioning tube 5, and the transmission disk 12 and the transmission plate 11 are connected The fixed connection is achieved by cooperating with the limit plate 7 and the ratchet ring 6 to prevent the positioning tube 5 from loosening after being threadedly connected with the first joint tube 1 and the second joint tube 2. The ratchet ring 6 is used to limit the reverse rotation of the limit plate 7 and the first movable tube 4. When reverse rotation is required, the transmission disk 12 can be pulled outward to drive the transmission plate 11 to move outward. When the transmission plate 11 moves, it cooperates with the through groove to push the limit plate 7 and the positioning plate 8 toward the outer wall of the first movable tube 4, thereby contacting the engagement between the limit plate 7 and the ratchet ring 6, and releasing the reverse rotation restriction on the first movable tube 4. When the transmission disk 12 is loosened, the first return spring 10 can be used to push the limit plate 7 and the positioning plate 8 to return to their original position.

[0029] A first splicing tube 13 is fixed to the left end of the second joint tube 2, and a splicing groove 14 is provided at the left end of the first splicing tube 13; a second splicing tube 15 is fixed to the left end of the first joint tube 1, and a splicing protrusion 16 is connected to the right end of the second splicing tube 15, and the right end of the splicing protrusion 16 is snap-connected with the splicing groove 14, and a first sealing ring 17 is connected to the right end of the second splicing tube 15; a first positioning ring 18 is fixed to the right side of the second splicing tube 15, and a positioning seat 19 is fixed to the outside of the first positioning ring 18, and a splicing buckle 20 is connected to the upper end of the positioning seat 19, a snap-connecting groove 21 is provided on the left outer wall of the first splicing tube 13, and the snap-connecting groove 21 is snap-connected with the right end of the splicing buckle 20; a second sealing ring 33 is connected to the right outer ring of the second splicing tube 15, and the second splicing tube The right end of 15 is snap-connected with the first splicing tube 13, the positioning seat 19 is rotatably connected with the splicing buckle 20, and the positioning seat 19 and the splicing buckle 20 are distributed in a ring array with the center of the first positioning ring 18 as the axis, and the right end of the splicing buckle 20 extends into the snap-in groove 21, and the splicing buckle 20 is snap-connected with the snap-in groove 21; through the cooperation of the splicing protrusion 16 and the splicing groove 14, the connection stability and reliability of the first splicing tube 13 and the second splicing tube 15 can be ensured, and the cooperation of the first sealing ring 17 and the second sealing ring 33 can be used to improve the sealing during the connection. When the first splicing tube 13 and the second splicing tube 15 are docked, multiple groups of splicing buckles 20 are snap-connected with the snap-in groove 21, which can fix the first splicing tube 13 and the second splicing tube 15 for quick connection.

[0030] A second positioning ring 22 runs through the outside of the second splicing tube 15, and a fixing ring 23 is provided at the left end of the second positioning ring 22, and the fixing ring 23 is fixedly connected to the outer wall of the second splicing tube 15, a telescopic rod 24 is fixed to the right end of the fixing ring 23, and the right end of the telescopic rod 24 is fixedly connected to the inner wall of the second positioning ring 22, a second return spring 25 is sleeved on the outside of the telescopic rod 24, and the two ends of the second return spring 25 are respectively in contact with the fixing ring 23 and the inner wall of the second positioning ring 22; the telescopic rod 24 and the second return spring 25 are distributed in a ring array with the center point of the second positioning ring 22 as the axis, and the second positioning ring 22 is fixed to the outer wall of the second splicing tube 15. A first limiting ring 26 is fixed to the inner wall of the positioning ring 22, and the first limiting ring 26 is slidably connected to the outside of the second splicing tube 15, and the first limiting ring 26 is in contact with the lower left end of the splicing buckle 20; through the cooperation of the fixing ring 23 with multiple groups of telescopic rods 24 and the second return spring 25, the second return spring 25 is used to push the second positioning ring 22 to move to the right, so that the first limiting ring 26 moves to the lower left end of the splicing buckle 20, thereby limiting the rotation of the first limiting ring 26, thereby preventing the splicing buckle 20 from disengaging from the snap-on groove 21, causing the first splicing tube 13 and the second splicing tube 15 to loosen.

[0031] A guide groove 27 is provided at the upper left end of the splicing buckle 20, and the lower end surface of the guide groove 27 is designed as an inclined surface. A guide rod 28 is fixed to the inner wall of the right side of the second positioning ring 22, and the lower end of the guide rod 28 extends to the inside of the guide groove 27, the lower end of the guide rod 28 is fitted with the bottom of the guide groove 27, and the guide rods 28 are distributed in a ring array; a splicing sleeve 30 is slidably connected to the left end of the first splicing tube 13, and a threaded groove is provided on the left inner wall of the splicing sleeve 30, second limiting rings 31 are provided on both sides of the splicing sleeve 30, and the second limiting rings 31 are fixedly connected to the outer wall of the first splicing tube 13, an external thread 29 is provided on the outer wall of the right side of the second positioning ring 22, and the right side of the second positioning ring 22 is connected to the splicing tube 13 through the external thread 29 The sleeve 30 is threadedly connected, and the movable range of the splicing sleeve 30 can be limited by two sets of second limit rings 31. When the splicing sleeve 30 is threadedly connected to the second positioning ring 22, the splicing reliability of the first splicing tube 13 and the second splicing tube 15 can be further improved, and the movement of the second positioning ring 22 and the first limit ring 26 can be limited. When the structure needs to be disassembled and assembled, the connection between the splicing sleeve 30 and the second positioning ring 22 can be released, and the second positioning ring 22 can be pushed to the left, and the guide rod 28 can be used to move to the left inside the guide groove 27, and the lower end inclined surface of the guide groove 27 can be used to push the splicing buckle 20 to rotate around the positioning seat 19, thereby contacting the connection between the splicing buckle 20 and the clamping groove 21.

[0032] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the embodiments of the present invention have been shown and described, it is understood by ordinary technicians in the field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A quick-release hydraulic hose connector that prevents loosening and falling off, comprising a first connector pipe (1), a second connector pipe (2), a hydraulic hose body (3), a first splicing pipe (13) and a second splicing pipe (15), characterized in that: A second joint pipe (2) is arranged on the right side of the first joint pipe (1), and a hydraulic hose body (3) is passed through the distal ends of the first joint pipe (1) and the second joint pipe (2), and a first movable pipe (4) is passed through the distal ends of the first joint pipe (1) and the second joint pipe (2); The two groups of the first movable tubes (4) are slidably connected to the first joint tube (1) and the second joint tube (2), respectively, and a positioning tube (5) is fixed inside the first movable tube (4). A sealing tube (32) is fixed inside the two groups of the first movable tubes (4), and the sealing tube (32) is designed to be conical in structure. The inner wall of the positioning tube (5) is matched in shape to the outer wall of the sealing tube (32); A first splicing tube (13) is fixed to the left end of the second joint tube (2), and a splicing groove (14) is provided at the left end of the first splicing tube (13); a second splicing tube (15) is fixed to the left end of the first joint tube (1), and a splicing protrusion (16) is connected to the right end of the second splicing tube (15); the right end of the splicing protrusion (16) is snap-connected to the splicing groove (14); and a first sealing ring (17) is connected to the right end of the second splicing tube (15); A first positioning ring (18) is fixed to the outside of the right side of the second splicing tube (15), and a positioning seat (19) is fixed to the outside of the first positioning ring (18), and a splicing buckle (20) is connected to the upper end of the positioning seat (19), and a snap-fitting groove (21) is formed on the left side outer wall of the first splicing tube (13), and the snap-fitting groove (21) is snap-fitted and connected to the right side end of the splicing buckle (20).

2. The anti-loosening and falling-off quick-release hydraulic hose connector according to claim 1, characterized in that: The outer walls of the two groups of positioning tubes (5) are provided with threads, and the positioning tubes (5) are respectively threadedly connected to the first joint tube (1) and the second joint tube (2); the outer walls of the first joint tube (1) and the second joint tube (2) at their far ends are connected with ratchet rings (6); the first movable tube (4) has a limiting plate (7) passing through it, and the limiting plates (7) are distributed in a ring array; the lower ends of the limiting plates (7) are designed in a wedge-shaped structure, and the lower ends of the limiting plates (7) are snap-fitted and connected to the ratchet rings (6).

3. The anti-loosening and falling-off quick-release hydraulic hose connector according to claim 2, characterized in that: The limiting plate (7) is slidably connected to the positioning tube (5), and positioning plates (8) are fixed on both sides of the positioning tube (5), and a first limiting rod (9) passes through the middle of the positioning plate (8), and both ends of the first limiting rod (9) are fixed to the inner wall of the positioning tube (5), and a first return spring (10) passes through the upper end of the first limiting rod (9), and the upper and lower ends of the first return spring (10) are respectively fixedly connected to the inner wall of the positioning tube (5) and the positioning plate (8).

4. The anti-loosening and falling-off quick-release hydraulic hose connector according to claim 3, characterized in that: A transmission plate (11) is arranged inside the positioning tube (5), a through slot is passed through the middle of the limit plate (7), and the transmission plate (11) passes through the through slot, and the transmission plate (11) passes through the outside of the positioning tube (5), the inner end of the transmission plate (11) is designed as an inclined surface, and a transmission disc (12) is arranged outside the positioning tube (5), and the transmission disc (12) is fixedly connected to the transmission plate (11).

5. The anti-loosening and falling-off quick-release hydraulic hose connector according to claim 1, characterized in that: A second sealing ring (33) is connected to the right outer ring of the second splicing tube (15), and the right end of the second splicing tube (15) is snap-connected to the first splicing tube (13). The positioning seat (19) is rotatably connected to the splicing buckle (20), and the positioning seat (19) and the splicing buckle (20) are both distributed in a ring array with the center of the first positioning ring (18) as the axis. The right end of the splicing buckle (20) extends into the interior of the snap-connection groove (21), and the splicing buckle (20) is snap-connected to the snap-connection groove (21).

6. The anti-loosening and falling-off quick-release hydraulic hose connector according to claim 5, characterized in that: A second positioning ring (22) passes through the outside of the second splicing tube (15), and a fixing ring (23) is provided at the left end of the second positioning ring (22), and the fixing ring (23) is fixedly connected to the outer wall of the second splicing tube (15), a telescopic rod (24) is fixed to the right end of the fixing ring (23), and the right end of the telescopic rod (24) is fixedly connected to the inner wall of the second positioning ring (22), and a second return spring (25) is sleeved on the outside of the telescopic rod (24), and two ends of the second return spring (25) are respectively in contact with the fixing ring (23) and the inner wall of the second positioning ring (22).

7. The anti-loosening and falling-off quick-release hydraulic hose connector according to claim 6, characterized in that: The telescopic rod (24) and the second return spring (25) are distributed in a circular array with the center point of the second positioning ring (22) as the axis, a first limiting ring (26) is fixed to the inner wall of the second positioning ring (22), and the first limiting ring (26) is slidably connected to the outside of the second splicing tube (15), and the first limiting ring (26) is in contact with the lower end of the left side of the splicing buckle (20).

8. The anti-loosening and falling-off quick-release hydraulic hose connector according to claim 7, characterized in that: A guide groove (27) is provided at the upper left end of the splicing buckle (20), and the lower end surface of the guide groove (27) is designed to be an inclined surface. A guide rod (28) is fixed to the inner wall of the right side of the second positioning ring (22), and the lower end of the guide rod (28) extends into the inside of the guide groove (27). The lower end of the guide rod (28) is in contact with the bottom of the guide groove (27), and the guide rods (28) are distributed in a ring array.

9. The anti-loosening and falling-off quick-release hydraulic hose connector according to claim 8, characterized in that: The left end of the first splicing tube (13) is slidably connected to a splicing sleeve (30), and a thread groove is provided on the left inner wall of the splicing sleeve (30). Second limiting rings (31) are provided on both sides of the splicing sleeve (30), and the second limiting rings (31) are fixedly connected to the outer wall of the first splicing tube (13). The right outer wall of the second positioning ring (22) is provided with an external thread (29), and the right side of the second positioning ring (22) is threadedly connected to the splicing sleeve (30) through the external thread (29).

Images