Quick connector connecting tool

Abstract

The utility model discloses a quick connector connecting tool which comprises a male end connector, a female end connector and a U-shaped plate and further comprises a connecting assembly arranged on the U-shaped plate and used for connecting the male end connector and the female end connector, and the connecting assembly comprises two inclined plates which are fixedly connected to one side of the U-shaped plate and are symmetrically arranged. The ends, away from the U-shaped plate, of the two inclined plates are fixedly connected with connecting plates, the two connecting plates are connected with pulling plates through rotating assemblies, the ends, away from the connecting plates, of the two pulling plates are provided with drag hooks, and the side wall of the female end connector is fixedly connected with four pull rods which are symmetrically arranged in pairs. According to the quick connector connecting tool, due to the arrangement of the connecting assembly, on the basis of lever reinforcement and driving of the four-bar mechanism, manual operation force is amplified to overcome high-pressure recoil, and therefore safe, labor-saving and high-compatibility quick connection of a male end connector and a female end connector under the high-pressure working condition is achieved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connector connection technology, specifically a quick connector connection tool. Background Technology

[0002] Cold storage containers require quick-connect couplings to detachably connect the piping between the refrigeration unit and the cold storage module. However, during the actual connection process, the residual high-pressure refrigerant (such as R404A, pressure ≥2.5MPa) in the piping can cause a reverse thrust during insertion. Traditional manual operation requires overcoming this pressure, which can lead to difficult insertion, wear of seals, and the risk of media leakage.

[0003] Therefore, there is an urgent need for a quick-connect coupling tool to solve the above problems. Utility Model Content

[0004] To achieve the above objectives, the present invention provides the following technical solution: a quick connector connection tool, including a male connector, a female connector and a U-shaped plate, and further including a connection component disposed on the U-shaped plate for connecting the male connector and the female connector;

[0005] The connecting assembly includes two symmetrically arranged inclined plates fixedly connected to one side of the U-shaped plate. A connecting plate is fixedly connected to the end of the two inclined plates away from the U-shaped plate. A pull plate is connected to the two connecting plates through a rotating assembly. A pull hook is provided at the end of the two pull plates away from the connecting plate. Four symmetrically arranged pull rods are fixedly connected to the side wall of the female end connector. The four pull rods are matched with the pull hooks. The two connecting plates are provided with a fastening assembly for fastening with the male end connector.

[0006] The rotating assembly includes a rotating through hole in the connecting plate, and a rotating shaft is rotatably connected to the rotating through hole relative to the two inner walls. The end of the pull plate away from the pull hook is connected to the rotating shaft. The rotating through hole is provided with a limiting component for limiting the pull rod.

[0007] The fastening assembly includes a fastening plate disposed between two connecting plates. The fastening plate is arc-shaped and connected to the two connecting plates via a fastening shaft. The male end connector has a stepped groove on its side wall, and the fastening plate is matched with the stepped groove.

[0008] A push rod is fixedly connected to the side of the U-shaped plate away from the inclined plate, and the side wall of the push rod is provided with multiple anti-slip grooves.

[0009] The two pull plates are provided with arc-shaped reinforcing rings on the side near the push rod, and the two ends of the arc-shaped reinforcing rings are respectively connected to the two pull plates.

[0010] The limiting component includes a limiting rod fixedly connected between two opposing inner walls of the rotating through hole. The limiting rod is located away from the inclined plate and is concentric with the fastening shaft. A limiting hole is opened on the side of the pull plate near the limiting rod, and the limiting hole is matched with the limiting rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model's quick-connect coupling tool, through the design of the connecting components, and the cooperation of the snap-fit ​​and rotating components, amplifies the manual operating force based on lever force amplification and the drive of the four-bar linkage mechanism to overcome high-pressure backlash. This achieves safe, labor-saving, and highly compatible quick connection of male and female connectors under high-pressure conditions, thereby reducing the risk of seal wear and media leakage in pipeline quick-connect couplings under high-pressure connections. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the male and female ends of the pipe connector of this utility model;

[0015] Figure 3 This is a schematic diagram of the connecting component structure of this utility model;

[0016] Figure 4 A schematic diagram of the initial state structure used in the connection tool of this utility model;

[0017] Figure 5 This is a schematic diagram of the connection tool of this utility model after use.

[0018] In the diagram: 101, male connector; 102, female connector; 103, U-shaped plate; 201, inclined plate; 202, connecting plate; 203, pull plate; 204, pull hook; 205, pull rod; 301, fastening plate; 302, stepped groove; 303, fastening shaft; 401, rotating through hole; 402, rotating shaft; 5, arc-shaped reinforcing ring; 6, push rod; 701, limiting rod; 702, limiting hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1

[0021] Please see Figures 1-5 The quick connector connection tool shown in the figure includes a male connector 101, a female connector 102 and a U-shaped plate 103, and also includes a connection component disposed on the U-shaped plate 103 for connecting the male connector 101 and the female connector 102.

[0022] The connecting assembly includes two symmetrically arranged inclined plates 201 fixedly connected to one side of the U-shaped plate 103. A connecting plate 202 is fixedly connected to the end of the two inclined plates 201 away from the U-shaped plate 103. A pull plate 203 is connected to the two connecting plates 202 through a rotating assembly. A pull hook 204 is provided at the end of the two pull plates 203 away from the connecting plate 202. Four symmetrically arranged pull rods 205 are fixedly connected to the side wall of the female end connector 102. The four pull rods 205 are matched with the pull hooks 204. The two connecting plates 202 are provided with a fastening assembly for fastening with the male end connector 101.

[0023] It should be noted that: by setting up the connecting components, under the cooperation of the fastening components and the rotating components, and based on the lever force amplification and the drive of the four-bar linkage, the manual operating force is amplified to overcome the high pressure backflow, thereby realizing a safe, labor-saving and highly compatible quick connection of the male end connector 101 and the female end connector 102 under high pressure conditions, thereby reducing the risk of seal wear and medium leakage of pipeline quick connectors under high pressure connection.

[0024] It is worth noting that the pipe fittings are divided into male fitting 101 and female fitting 102. As this is existing technology, we will not go into too much detail.

[0025] Please see Figure 3 The rotating assembly shown in the figure includes a rotating through hole 401 opened in the connecting plate 202. The rotating through hole 401 is rotatably connected to the rotating shaft 402 relative to the two inner walls. The end of the pull plate 203 away from the pull hook 204 is connected to the rotating shaft 402. The rotating through hole 401 is provided with a limiting assembly for limiting the pull rod 205.

[0026] It should be noted here that the rotating component is designed to provide rotational guidance for the rotation of the pull plate 203.

[0027] Please see Figure 2 and Figure 3 The fastening assembly shown in the figure includes a fastening plate 301 disposed between two connecting plates 202. The fastening plate 301 is arc-shaped and connected to the two connecting plates 202 through a fastening shaft 303. The male end connector 101 has a stepped groove 302 on its side wall, and the fastening plate 301 is matched with the stepped groove 302.

[0028] It should be noted here that the fastening component is designed to provide a lever fulcrum for the connection tool to use the male connector 101 as a fulcrum, thereby connecting the male connector 101 and the female connector 102.

[0029] Please see Figure 3 In the figure, a push rod 6 is fixedly connected to the side of the U-shaped plate 103 away from the inclined plate 201, and multiple anti-slip grooves are provided on the side wall of the push rod 6.

[0030] It should be noted here that the push rod 6 facilitates the rotation of the two connecting plates 202.

[0031] Two pull plates 203 are provided with arc-shaped reinforcing rings 5 ​​on the side near the push rod 6, and the two ends of the arc-shaped reinforcing rings 5 ​​are respectively connected to the two pull plates 203;

[0032] It should be noted here that the arc-shaped reinforcing ring 5 is used to improve the connection strength between the two pull plates 203.

[0033] Please see Figure 3 The limiting component shown in the figure includes a limiting rod 701 fixedly connected between two inner walls of the rotating through hole 401. The limiting rod 701 is set away from the inclined plate 201 and is concentric with the fastening shaft 303. A limiting hole 702 is opened on the side of the pull plate 203 near the limiting rod 701. The limiting hole 702 is matched with the limiting rod 701.

[0034] It should be noted here that: by setting the limiting component, the rotation angle of the pull plate 203 is limited by the blocking action of the limiting rod 701, which in turn provides position limitation for the connection and locking of the male end connector 101 and the female end connector 102.

[0035] Working principle: When connecting the male end connector 101 and the female end connector 102 of the pipeline joint, the snap-fit ​​plate 301 first engages with the stepped groove 302 on the side wall of the male end connector 101 (the stepped groove 302 is built into the side wall of the male end connector 101), and the hooks 204 at one end of the two pull plates 203 are inserted into the two pull rods 205 on the side wall of the female end connector 102 (initially as shown). Figure 4 ), and then with Figure 4 The indicated thrust direction pushes the push rod 6, and under the action of the thrust and the lever principle, the two connecting plates 202 rotate around the engagement shaft 303. This drives the rotational motion to be converted into linear movement of the hook 204 through the four-bar linkage. The distance between the engagement shaft 303 and the hook 204 gradually shortens (the movement trajectory is constrained by the geometry of the mechanism) until the male end connector 101 and the female end connector 102 are fully inserted and enter a geometrically self-locking state (the completed state is as follows). Figure 5 );

[0036] Therefore, by setting up the connecting components, under the combined action of the snap-fit ​​components and the rotating components, and driven by the lever force amplification and the four-bar linkage mechanism, the manual operating force is amplified to overcome the high-pressure backlash, thereby realizing a safe, labor-saving, and highly compatible quick connection of the male end connector 101 and the female end connector 102 under high-pressure conditions. This reduces the risk of seal wear and media leakage of pipeline quick connectors under high-pressure connections, and is compatible with multiple specifications of connectors from DN15 to DN50, thus improving the versatility of use.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A quick connector connecting tool, comprising: a male end connector (101), a female end connector (102) and a U-shaped plate (103); characterized in that it further comprises: a connecting assembly provided on the U-shaped plate (103) for connecting the male end connector (101) and the female end connector (102); the connecting assembly comprises two symmetrical inclined plates (201) fixed on one side of the U-shaped plate (103), two connecting plates (202) fixed on the ends of the two inclined plates (201) away from the U-shaped plate (103), two pull plates (203) connected by a rotating assembly, two pull hooks (204) provided on the ends of the two pull plates (203) away from the connecting plates (202), four pull rods (205) fixed on the side wall of the female end connector (102) and symmetrically arranged in pairs, the four pull rods (205) being matched with the pull hooks (204), and two connecting plates (202) being provided with a buckling assembly for buckling with the male end connector (101).

2. A quick connect tool according to claim 1, characterized in that: the rotating assembly comprises a rotating through hole (401) provided in the connecting plate (202), a rotating shaft (402) rotatably connected to the two inner walls of the rotating through hole (401), and the end of the pull plate (203) away from the pull hook (204) being connected with the rotating shaft (402), and the rotating through hole (401) being provided with a limiting assembly for limiting the pull rod (205).

3. A quick connect tool according to claim 2, wherein: the buckling assembly comprises a buckling plate (301) provided between the two connecting plates (202), the buckling plate (301) being arc-shaped and connected with the two connecting plates (202) through a buckling shaft (303), and the side wall of the male end connector (101) being provided with a stepped groove (302), the buckling plate (301) being matched with the stepped groove (302).

4. A quick connect tool according to claim 3, wherein: the U-shaped plate (103) is fixedly connected with a push rod (6) on the side away from the inclined plate (201), and the side wall of the push rod (6) is provided with a plurality of anti-skid grooves.

5. A quick connect tool according to claim 4, wherein: the two pull plates (203) are provided with arc-shaped reinforcing rings (5) on the side close to the push rod (6), and the two ends of the arc-shaped reinforcing ring (5) are connected with the two pull plates (203) respectively.

6. A quick connect tool according to claim 5, wherein: the limiting assembly comprises a limiting rod (701) fixedly connected between the two inner walls of the rotating through hole (401), the limiting rod (701) being arranged away from the inclined plate (201) and concentrically with the buckling shaft (303), and the side of the pull plate (203) close to the limiting rod (701) being provided with a limiting hole (702), the limiting hole (702) being matched with the limiting rod (701).

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