Hydraulic quick-change connector tool suitable for underwater

Abstract

A hydraulic quick-change connector tool suitable for underwater use comprises a mounting base, quick-change male head mounting assemblies, quick-change female head mounting assemblies and an overturning locking support, the quick-change male head mounting assemblies used for fixing a quick-change male head and the quick-change female head mounting assemblies used for fixing a quick-change female head are arranged on the mounting base, one quick-change male head mounting assembly and the other quick-change female head mounting assembly are fixed, and the other quick-change female head mounting assembly is slidable; the turnover locking support forms a swing pair and is provided with a first locking piece, the mounting base is provided with a second locking piece, and after the turnover locking support swings in place, the turnover locking support drives the quick-change female connector mounting assembly and the quick-change male connector mounting assembly to get close to each other, the quick-change male connector and the quick-change female connector are connected in an inserted mode, and the quick-change female connector and the quick-change male connector are connected in an inserted mode. And the first locking piece and the second locking piece are mutually matched and locked. According to the hydraulic quick-change connector, the stability and the safety of the hydraulic quick-change connector in the seabed environment can be improved, the risk of disengagement is reduced, the quick-change connector is convenient to install and operate, the hydraulic quick-change connector is suitable for quick-change connectors of various specifications, and various requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic equipment, in particular to a hydraulic quick-change joint tooling suitable for underwater use. Background Art

[0002] Hydraulic quick-change connectors are primarily used for quickly connecting and disconnecting hydraulic system pipelines. They typically consist of a mating plug-in connector (male) and a socket connector (female). The plug-in connector has one or more sealing rings, and the socket connector has a corresponding number of sealing grooves. Operation generally requires no tools; simply align the male and female connectors and push them in with a firm push to connect the pipelines. The sealing rings and grooves form a seal. Similarly, the pipelines can be disconnected by simply pulling out the plug. These connectors offer numerous advantages, including ease of operation, excellent sealing performance, strong pressure resistance, compact structure, and small size. They are widely used in various mechanical equipment to quickly replace working parts and improve work efficiency, and are widely used in engineering machinery and industrial hydraulics. However, in deep-sea equipment, the influence of external ocean currents and waves makes manual operation of traditional hydraulic quick-change connectors difficult. After connection, the connectors may fail, fall off, or disconnect, causing the entire machine and equipment to stagnate, and even resulting in significant economic losses. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a hydraulic quick-change joint tooling suitable for underwater operation, which can improve the stability and safety of the quick-change joint in an underwater operation environment.

[0004] The utility model is realized through the following technical solutions:

[0005] A hydraulic quick-change joint tooling suitable for underwater use, comprising a mounting base, a quick-change male head mounting assembly, a quick-change female head mounting assembly and a flip locking bracket, wherein either the quick-change male head mounting assembly or the quick-change female head mounting assembly is fixed on the mounting base, referred to as a fixed mounting assembly, and the other is slidably arranged on the mounting base, referred to as a sliding mounting assembly, the quick-change male head mounting assembly is used to fix the quick-change male joint, the quick-change female head mounting assembly is used to fix the quick-change female joint, and the quick-change male joint and the quick-change female joint are positioned relative to each other so that they can be plugged into each other; the flip locking bracket forms a swing pair, which is connected to the quick-change male head mounting assembly and the quick-change female head mounting assembly The sliding mounting assembly in the quick-change male mounting assembly can be rotatably connected, and a first locking piece is provided on the flip locking bracket, and a second locking piece is provided on the mounting base. The first locking piece and the second locking piece cooperate with each other to position and lock. The swing of the flip locking bracket drives the sliding mounting assembly in the quick-change male mounting assembly and the quick-change female mounting assembly to slide on the mounting base, so that the quick-change male mounting assembly and the quick-change female mounting assembly are close to each other. When the flip locking bracket is swung into place, the quick-change male connector on the quick-change male mounting assembly and the quick-change female connector on the quick-change female mounting assembly are plugged into each other and locked by the mutual cooperation of the first locking piece and the second locking piece.

[0006] Furthermore, the flip locking bracket includes a rotating bracket, a connecting rod and a locking plate, one end of the rotating bracket can be rotatably mounted on the fixed mounting assembly in the quick-change male head mounting assembly and the quick-change female head mounting assembly to form a swing pair, the locking plate is fixed to the other end of the rotating bracket, and the first locking piece is arranged on the locking plate; one end of the connecting rod can be rotatably mounted on the sliding mounting assembly in the quick-change male head mounting assembly and the quick-change female head mounting assembly, and the other end of the connecting rod can be rotatably connected to the middle position of the rotating bracket, and the swinging of the rotating bracket drives the movement of the connecting rod, thereby driving the sliding of the sliding mounting assembly.

[0007] Furthermore, the flip locking bracket also includes a fixing plate, which is provided with bolt holes for connecting the connecting rod and the locking plate to the rotating bracket; the rotating bracket is provided with a handle for the operator to hold and operate the rotating bracket.

[0008] Furthermore, the second locking member is a pin, the first locking member is a lock hook adapted to the pin, and the lock hook is arranged at the front end of the locking plate.

[0009] Furthermore, the fixed mounting assembly is a quick-change male mounting assembly, the sliding mounting assembly is a quick-change female mounting assembly, the mounting base includes a mounting base plate and a fixed column, the fixed column is arranged on one side of the mounting base plate, the quick-change male mounting assembly and the quick-change female mounting assembly are relatively arranged on the mounting base plate, and the quick-change female mounting assembly is arranged on the side away from the fixed column, and the second locking member is arranged on the fixed column.

[0010] Furthermore, a waist-shaped groove is provided on the mounting base plate, and the extension direction of the waist-shaped groove is toward the quick-change male head mounting assembly. A sliding column adapted to the waist-shaped groove is provided on the bottom of the quick-change female head mounting assembly. The quick-change female head mounting assembly is slidably mounted on the mounting base plate through the cooperation between the sliding column and the waist-shaped groove. The swing of the flip locking bracket drives the sliding column to slide in the waist-shaped groove, thereby driving the quick-change female connector and the quick-change male connector to be plugged into each other.

[0011] Alternatively, a slide rail is provided on the mounting base plate, and the extension direction of the slide rail is toward the quick-change male head mounting assembly. A slider adapted to the slide rail is provided at the bottom of the quick-change female head mounting assembly. The quick-change female head mounting assembly is slidably mounted on the mounting base plate through the cooperation between the slider and the slide rail. The swing of the flip locking bracket drives the slider to slide along the slide rail, thereby driving the quick-change female connector and the quick-change male connector to be plugged into each other.

[0012] Furthermore, the quick-change male head mounting assembly includes a lower base and an upper base, the lower base is provided with a first concave hole, and the upper base is provided with a second concave hole. When the upper base is connected to the lower base, the first concave hole and the second concave hole are assembled into a first positioning and fixing hole for positioning and fixing the quick-change male connector. The quick-change male connector is fixed to the quick-change male head mounting assembly through the first positioning and fixing hole, and the upper base and the lower base are fixed by bolts.

[0013] Furthermore, the quick-change female connector mounting assembly includes a mounting plate and a plug-in rack, the mounting plate is mounted on the plug-in rack by plugging the groove and the ridge together, and the mounting plate is provided with a second positioning and fixing hole adapted to the quick-change female connector, and the quick-change female connector is fixed to the quick-change female connector mounting assembly through the second positioning and fixing hole.

[0014] Furthermore, the groove is arranged on the mounting plate, including a first groove and a second groove arranged on both sides of the mounting plate, and the ridge is arranged on the plug-in frame, including a first ridge and a second ridge arranged opposite to each other. The mounting plate is inserted into the plug-in frame by plugging together the first groove and the first ridge, the second groove and the second ridge, and the shapes of the first groove and the second groove, the first ridge and the second ridge are different to prevent the installation plate and the plug-in frame from being reversed or misaligned.

[0015] Furthermore, each set of quick-change male head mounting components and each set of quick-change female head mounting components are provided with two fixing positions, which are used to fix the two sets of quick-change male connectors and the two sets of quick-change female connectors respectively.

[0016] The utility model fixes the male connector and the female connector by arranging a quick-change male head mounting assembly and a quick-change female head mounting assembly, realizes the plug-in installation of the male connector and the female connector by flipping the locking bracket, and locks the connector by flipping the first locking piece on the locking bracket, thereby improving the stability of the hydraulic quick-change connector in the submarine environment and reducing the risk of equipment failure or even whole machine malfunction caused by it being washed open and falling off by external factors such as ocean currents and waves; by arranging multiple mounting holes on the mounting base, the quick-change male head mounting assembly can select the appropriate mounting hole for installation according to the specifications and models of the quick-change male connector, and a waist-shaped groove or a slide rail is provided on the mounting base so that the quick-change female head mounting assembly can slide on the mounting base The quick-change female connector can be moved to meet the requirements of different specifications of quick-change female connectors. On the other hand, it can cooperate with the flip locking bracket to drive the quick-change female connector and the quick-change male connector to approach each other for plugging, and has a wide applicability. The structure of the flip locking bracket makes the quick-change connector easy to install and operate, and can effectively lock the quick-change connector, thereby improving the stability and safety of the quick-change connector in the underwater working environment. The structure of the quick-change male head mounting assembly and the quick-change female head mounting assembly enables it to simultaneously install and fix multiple sets of quick-change connectors to meet various needs. At the same time, a fool-proof single-sided socket is provided. When the entire equipment has multiple sets of quick-change connectors, it can not only greatly save the replacement time, but also avoid the risk of quick-change connectors being connected incorrectly due to human factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the present utility model.

[0018] Figure 2 It is a schematic diagram of the structural decomposition of an embodiment of the present utility model.

[0019] Figure 3 This is a schematic diagram of the structural decomposition of an embodiment of the utility model from another perspective.

[0020] Figure 4 This is a schematic diagram of the operation principle of the flip locking bracket in the embodiment of the present utility model.

[0021] Figure markings: 1-mounting base; 2-quick-change male mounting assembly; 3-quick-change female mounting assembly; 4-flip locking bracket; 5-quick-change male connector; 6-quick-change female connector; 11-mounting base; 12-fixing column; 13-pin; 14-waist-shaped groove; 15-mounting hole; 21-lower base; 22-upper base; 23-bolt; 211-first concave hole; 221-second concave hole; 31-insertion rack; 32-mounting plate; 33-sliding column; 311-first ridge; 312-second ridge; 321-second positioning and fixing hole; 322-first groove; 323-second groove; 41-rotating bracket; 42-connecting rod; 43-locking plate; 44-fixing plate; 411-handle; 431-locking hook; 51-quick-change female plug; 52-transition female plug; 61-quick-change male plug; 62-transition male plug. DETAILED DESCRIPTION

[0022] A hydraulic quick-change joint tool suitable for underwater Figures 1 to 3 As shown, it includes a mounting base 1, a quick-change male head mounting assembly 2, a quick-change female head mounting assembly 3 and a flip locking bracket 4. Any one of the quick-change male head mounting assembly 2 and the quick-change female head mounting assembly 3 is fixed on the mounting base 1, called a fixed mounting assembly, and the other is slidably arranged on the mounting base 1, called a sliding mounting assembly. The quick-change male head mounting assembly 2 is used to fix the quick-change male connector 5, and the quick-change female head mounting assembly 3 is used to fix the quick-change female connector 6. The positions of the quick-change male connector 5 and the quick-change female connector 6 are relative to each other so that they can be plugged into each other, that is, when the quick-change connectors are paired and plugged in, the quick-change male connector 5 can be fixed and the quick-change female connector 6 can be moved, or the quick-change female connector 6 can be fixed and the quick-change male connector 5 can be moved. The flip locking bracket 4 forms a swing pair, which is rotatably connected to the sliding mounting assembly in the quick-change male head mounting assembly 2 and the quick-change female head mounting assembly 3. A first locking member is provided on the flip locking bracket 4, and a second locking member is provided on the mounting base 1. The first locking member and the second locking member cooperate with each other to perform positioning and locking. The swing of the flip locking bracket 4 drives the sliding mounting assembly in the quick-change male head mounting assembly 2 and the quick-change female head mounting assembly 3 to slide on the mounting base 1, so that the quick-change male head mounting assembly 2 and the quick-change female head mounting assembly 3 are close to each other. When the flip locking bracket 4 is swung into place, the quick-change male connector 5 on the quick-change male head mounting assembly 2 and the quick-change female connector 6 on the quick-change female head mounting assembly 3 are plugged into each other and locked by the mutual cooperation of the first locking member and the second locking member.

[0023] In this embodiment, each set of quick-change male connector mounting assembly 2 and each set of quick-change female connector mounting assembly 3 is provided with two fixing positions, respectively used to fix two sets of quick-change male connectors 5 and two sets of quick-change female connectors 6. Two sets of quick-change connectors can be installed simultaneously, just enough to meet the requirements of one set of hydraulic operations. When the entire equipment has multiple quick-change connectors, this not only significantly saves replacement time but also avoids the risk of misconnection of quick-change connectors due to human factors. Of course, multiple sets of quick-change connectors can also be fixed simultaneously according to actual conditions.

[0024] In this embodiment, the fixed mounting assembly is a quick-change male mounting assembly 2, and the sliding mounting assembly is a quick-change female mounting assembly 3. That is, the quick-change male connector 5 mounting assembly 2 is first fixed to the mounting base 1 to fix the quick-change male connector 5. Then, by rotating the flip locking bracket 4, the quick-change female mounting assembly 3 is driven to slide toward the quick-change male mounting assembly 2, so that the quick-change female connector 6 is plugged into the quick-change male connector 5. Specifically, the mounting base 1 includes a mounting base 11 and a fixing column 12. The fixing column 12 is arranged on one side of the mounting base 11. The quick-change male mounting assembly 2 and the quick-change female mounting assembly 3 are arranged on the mounting base 11 in opposite positions, and the quick-change female mounting assembly 3 is arranged on the side away from the fixing column 12. The second locking member is arranged on the fixing column 12.

[0025] The sliding mounting structure of the quick-change female connector mounting assembly 3 on the mounting base 11 can take various forms. As one embodiment, a slider and a slide rail can be used. Specifically, the mounting base 11 is provided with a slide rail, which extends toward the quick-change male connector mounting assembly 2. The bottom of the quick-change female connector mounting assembly 3 is provided with a slider that adapts to the slide rail. The quick-change female connector mounting assembly 3 is slidably mounted on the mounting base 11 through the cooperation of the slider and the slide rail. The swinging of the flip locking bracket 4 drives the slider to slide along the slide rail, thereby driving the quick-change female connector 6 and the quick-change male connector 5 to plug into each other.

[0026] This embodiment adopts the form of matching the sliding column 33 with the waist-shaped groove 14. Specifically, a waist-shaped groove 14 is provided on the mounting base 11, and the extension direction of the waist-shaped groove 14 is toward the quick-change male head mounting assembly 2. The bottom of the quick-change female head mounting assembly 3 is provided with a sliding column 33 adapted to the waist-shaped groove 14. The quick-change female head mounting assembly 3 is slidably installed on the mounting base 11 through the matching of the sliding column 33 and the waist-shaped groove 14. The swing of the flip locking bracket 4 drives the sliding column 33 to slide in the waist-shaped groove 14, thereby driving the quick-change female connector 6 and the quick-change male connector 5 to be plugged into each other.

[0027] The length of the waist-shaped groove 14 can be appropriately extended to adapt to the installation requirements of hydraulic quick-change connectors of various specifications. At the same time, multiple groups of mounting holes 15 are reserved on the mounting base 11. The quick-change male head mounting assembly 2 can be fixed on the appropriate mounting holes 15 to meet the requirements of quick-change male connectors 5 of different specifications and models.

[0028] The function of the flip locking bracket 4 is to drive the quick-change female mounting assembly 3 on the mounting base 11 to move closer to the quick-change male mounting assembly 2, and an existing structure or form that can achieve this function can be used. In this embodiment, the flip locking bracket 4 includes a rotating bracket 41, a connecting rod 42 and a locking plate 43. One end of the rotating bracket 41 can be rotatably mounted on the fixed mounting assembly (the quick-change male mounting assembly 2 in this embodiment) in the quick-change male mounting assembly 2 and the quick-change female mounting assembly 3 to form a swing pair. The locking plate 43 is fixed on the other end of the rotating bracket 41 and swings with the swing of the rotating bracket 41. The first locking member is arranged on the locking plate 43; one end of the connecting rod 42 can be rotatably mounted on the sliding mounting assembly (the quick-change female mounting assembly 3 in this embodiment) in the quick-change male mounting assembly 2 and the quick-change female mounting assembly 3, and the other end of the connecting rod 42 can be rotatably connected to the middle position of the rotating bracket 41. As Figure 4 When the rotating bracket 41 swings (rotates) from top to bottom, the rotating bracket 41 drives the connecting rod 42 to move, and the connecting rod 42 drives the quick-change female head mounting assembly 3 (corresponding to Figure 4 The insertion rack 31) slides along the waist-shaped groove 14, and the quick-change female connector 6 approaches the quick-change male connector 5. When the bottom of the rotating bracket 41 is in place, the quick-change female connector 6 and the quick-change male connector 5 are paired and inserted, and the first locking member and the second locking member are locked to ensure that the quick-change connector will not fail or fall off due to external ocean currents, waves, etc. after being locked.

[0029] In this embodiment, the second locking member is a pin 13 fixed to the fixing post 12, and the first locking member is a locking hook 431 adapted to the pin 13. The locking hook 431 is disposed at the front end of the locking plate 43. The flip lock bracket 4 also includes a fixing plate 44, which is provided with bolt holes for connecting the connecting rod and the locking plate 43 to the rotating bracket 41. The rotating bracket 41 is provided with a handle 411 for an operator to hold and operate the rotating bracket 41.

[0030] As one embodiment, the quick-change male connector mounting assembly 2 includes a lower base 21 and an upper base 22. The lower base 21 is provided with a first recessed hole 211, and the upper base 22 is provided with a second recessed hole 221. When the upper base 22 is connected to the lower base 21, the first recessed hole 211 and the second recessed hole 221 are combined to form a first positioning and fixing hole for positioning and fixing the quick-change male connector 5. The quick-change male connector 5 is fixed to the quick-change male connector mounting assembly 2 through the first positioning and fixing hole. The upper base 22 and the lower base 21 are fixed by bolts 23. The quick-change male connector 5 generally includes a quick-change male plug 61 and a transition male plug 62. In this embodiment, the bolts 23 pass through the upper base 22 and the lower base 21 to fix the upper base 22 and the lower base 21 and pass through the mounting holes 15 on the mounting base 11, thereby simultaneously fixing the upper base 22 and the lower base 21 to the mounting base 11.

[0031] As one embodiment, the quick-change female connector mounting assembly 3 includes a mounting plate 32 and an insertion frame 31. The mounting plate 32 is mounted on the insertion frame 31 by engaging the grooves and ridges, allowing the mounting plate 32 to be quickly and accurately inserted into the insertion frame 31. The mounting plate 32 is provided with a second positioning and fixing hole 321 adapted for the quick-change female connector 6. The quick-change female connector 6 is fixed to the quick-change female connector mounting assembly 3 through the second positioning and fixing hole 321. The quick-change female connector 6 generally includes a quick-change female plug 51 and a transition female connector 52.

[0032] The grooves can be provided on the mounting plate 32 , and the ridges can be provided on the insertion frame 31 . Similarly, the grooves can also be provided on the insertion frame 31 , and the ridges can be provided on the mounting plate 32 . When the cam 32 is in the closed position, the cam 32 is in the closed position, and the cam 32 is in the closed position, so that the cam 32 is in the open position and the cam 32 is out of the open position.

[0033] The above detailed description is a specific description of a feasible embodiment of the present invention. The embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or modification that does not depart from the present invention should be included in the patent scope of this case.

Claims

1. A hydraulic quick-change joint tool suitable for underwater use, characterized in that: It includes a mounting base, a quick-change male mounting assembly, a quick-change female mounting assembly and a flip locking bracket. Any one of the quick-change male mounting assembly and the quick-change female mounting assembly is fixed on the mounting base, called a fixed mounting assembly, and the other is slidably arranged on the mounting base, called a sliding mounting assembly. The quick-change male mounting assembly is used to fix the quick-change male connector, and the quick-change female mounting assembly is used to fix the quick-change female connector, and the positions of the quick-change male connector and the quick-change female connector are opposite so that they can be plugged into each other; the flip locking bracket forms a swing pair, which is connected to the sliding mounting assembly in the quick-change male mounting assembly and the quick-change female mounting assembly. The rotatable connection is provided with a first locking piece on the flip locking bracket, and a second locking piece is provided on the mounting base. The first locking piece and the second locking piece cooperate with each other to perform positioning and locking. The swing of the flip locking bracket drives the sliding mounting assembly in the quick-change male mounting assembly and the quick-change female mounting assembly to slide on the mounting base, so that the quick-change male mounting assembly and the quick-change female mounting assembly are close to each other. When the flip locking bracket is swung into place, the quick-change male connector on the quick-change male mounting assembly and the quick-change female connector on the quick-change female mounting assembly are plugged into each other and locked by the mutual cooperation of the first locking piece and the second locking piece.

2. The underwater hydraulic quick-change joint fixture according to claim 1, characterized in that: The flip locking bracket includes a rotating bracket, a connecting rod and a locking plate, one end of the rotating bracket can be rotatably mounted on the fixed mounting assembly in the quick-change male mounting assembly and the quick-change female mounting assembly to form a swing pair, the locking plate is fixed to the other end of the rotating bracket, and the first locking piece is arranged on the locking plate; one end of the connecting rod can be rotatably mounted on the sliding mounting assembly in the quick-change male mounting assembly and the quick-change female mounting assembly, and the other end of the connecting rod can be rotatably connected to the middle position of the rotating bracket, and the swing of the rotating bracket drives the movement of the connecting rod, thereby driving the sliding of the sliding mounting assembly.

3. The underwater hydraulic quick-change joint fixture according to claim 2, characterized in that: The flip locking bracket also includes a fixing plate, which is provided with bolt holes for connecting the connecting rod and the locking plate to the rotating bracket; the rotating bracket is provided with a handle for an operator to hold and operate the rotating bracket.

4. The underwater hydraulic quick-change joint fixture according to claim 2, characterized in that: The second locking member is a pin, and the first locking member is a locking hook adapted to the pin, and the locking hook is arranged at the front end of the locking plate.

5. The underwater hydraulic quick-change joint fixture according to claim 1, characterized in that: The fixed mounting assembly is a quick-change male mounting assembly, the sliding mounting assembly is a quick-change female mounting assembly, the mounting base includes a mounting base plate and a fixed column, the fixed column is arranged on one side of the mounting base plate, the quick-change male mounting assembly and the quick-change female mounting assembly are arranged on the mounting base plate in relative positions, and the quick-change female mounting assembly is arranged on a side away from the fixed column, and the second locking member is arranged on the fixed column.

6. The underwater hydraulic quick-change joint fixture according to claim 5, characterized in that: The mounting base is provided with a waist-shaped groove, the extension direction of the waist-shaped groove is toward the quick-change male head mounting assembly, and the bottom of the quick-change female head mounting assembly is provided with a sliding column adapted to the waist-shaped groove. The quick-change female head mounting assembly is slidably mounted on the mounting base through the cooperation between the sliding column and the waist-shaped groove. The swing of the flip locking bracket drives the sliding column to slide in the waist-shaped groove, thereby driving the quick-change female connector and the quick-change male connector to be plugged into each other; Alternatively, a slide rail is provided on the mounting base, and the extension direction of the slide rail is toward the quick-change male head mounting assembly. A slider adapted to the slide rail is provided at the bottom of the quick-change female head mounting assembly. The quick-change female head mounting assembly is slidably mounted on the mounting base through the cooperation between the slider and the slide rail. The swing of the flip locking bracket drives the slider to slide along the slide rail, thereby driving the quick-change female connector and the quick-change male connector to be plugged into each other.

7. The underwater hydraulic quick-change joint fixture according to claim 1, characterized in that: The quick-change male head mounting assembly includes a lower base and an upper base, the lower base is provided with a first concave hole, and the upper base is provided with a second concave hole. When the upper base is connected to the lower base, the first concave hole and the second concave hole are assembled into a first positioning and fixing hole for positioning and fixing the quick-change male connector. The quick-change male connector is fixed to the quick-change male head mounting assembly through the first positioning and fixing hole, and the upper base and the lower base are fixed by bolts.

8. The underwater hydraulic quick-change joint fixture according to claim 1, characterized in that: The quick-change female connector mounting assembly includes a mounting plate and a plug-in rack. The mounting plate is mounted on the plug-in rack by plugging the groove into the ridge. The mounting plate is provided with a second positioning and fixing hole that is adapted to the quick-change female connector. The quick-change female connector is fixed to the quick-change female connector mounting assembly through the second positioning and fixing hole.

9. The underwater hydraulic quick-change joint fixture according to claim 8, characterized in that: The groove is arranged on the mounting plate, and the groove includes a first groove and a second groove arranged on both sides of the mounting plate. The ridge is arranged on the insertion rack, and the ridge includes a first ridge and a second ridge arranged opposite to each other. The mounting plate is inserted into the insertion rack by plugging together the first groove and the first ridge, the second groove and the second ridge, and the shapes of the first groove and the second groove, the first ridge and the second ridge are different to prevent reverse or misalignment of the insertion between the mounting plate and the insertion rack.

10. The underwater hydraulic quick-change joint tooling according to claim 1, characterized in that: Each set of quick-change male head mounting components and each set of quick-change female head mounting components are provided with two fixing positions, which are used to fix the two sets of quick-change male connectors and the two sets of quick-change female connectors respectively.

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