Quick coupler withdrawal device

Abstract

The utility model relates to the field of locomotive load tests, in particular to a quick coupler withdrawal device. The quick coupler withdrawal device comprises a base, an ejector block and a jackscrew. The base is provided with a jackscrew hole used for being connected with a quick coupler. The top block is used for being installed in an inner hole of the quick coupler and makes contact with the base. The jackscrew is arranged in the jackscrew hole in a penetrating mode, and the end of the jackscrew is used for pushing the ejector block in the direction away from the base so that the pressure contact in the inner hole of the quick coupler can be disengaged from the quick coupler. The quick coupler withdrawing device can be used for withdrawing the quick coupler and the pressure contact, and plays a role in protecting the quick coupler and the pressure contact when the quick coupler is withdrawn.

Description

Technical Field

[0001] The utility model relates to the field of locomotive load testing, in particular to a quick-release connector withdrawal device. Background Art

[0002] Before rolling off the production line, locomotive parts must undergo load testing. The load test equipment uses adapters to apply force to the test location, such as the frame crossbar. Due to the locomotive production model of small batches and multiple models, the adapters must be replaced frequently using quick-release connectors.

[0003] The load test equipment is a precision device with a complex structure. The force between the pressure contact end of the load test equipment and the quick-release connector is very large, which causes the quick-release connector to easily deform and become abnormally fixed after long-term use. Violent disassembly will cause irreparable damage to the pressure contact and the quick-release connector. The existing technology cannot smoothly remove the fixed quick-release connector and can only achieve removal by damaging the quick-release connector.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Utility Model Content

[0005] The present disclosure aims to provide a quick connector removal device, which can be used to remove a quick connector and a pressure contact, and protect the quick connector and the pressure contact during removal.

[0006] The present disclosure provides a quick connector withdrawal device for connecting to a quick connector. The quick connector withdrawal device includes:

[0007] The base has a top screw hole and is used to connect to the quick-release connector;

[0008] A top block is used to be installed in the inner hole of the quick connector and to contact the base;

[0009] The top screw is inserted into the top screw hole, and the end of the top screw is used to push the top block in a direction away from the base, so that the pressure contact in the inner hole of the quick connector is separated from the quick connector.

[0010] In an exemplary embodiment of the present disclosure, a first countersunk hole is provided on the surface of the top block close to the base, and the diameter of the first countersunk hole is not less than the diameter of the top screw hole, so that the end of the top screw passes through the top screw hole and enters the first countersunk hole.

[0011] In an exemplary embodiment of the present disclosure, the quick connector disassembly device further includes a transition pad, which is sleeved on the outer cylindrical surface of the quick connector and contacts the top surface of the connector seat of the quick connector; the transition pad, the quick connector and the base are sequentially connected along the axial direction of the quick connector through a first threaded connector.

[0012] In an exemplary embodiment of the present disclosure, the transition pad includes a first transition pad and a second transition pad, and the first transition pad and the second transition pad match each other in the circumferential direction to jointly surround the outer cylindrical surface of the quick-release connector; a transition pad gap is provided between the first transition pad and the second transition pad to disconnect the first transition pad from the second transition pad.

[0013] In an exemplary embodiment of the present disclosure, the transition pad gap is arranged along the diameter direction of the quick connector, so that the first transition pad and the second transition pad are arranged axially symmetrically with respect to the transition pad gap.

[0014] In an exemplary embodiment of the present disclosure, the width of the transition pad gap is not less than 1.5 mm and not more than 2.5 mm.

[0015] In an exemplary embodiment of the present disclosure, four transition pad connection holes for the first threaded connector to pass through are evenly distributed along the circumferential direction on the transition pad, and the minimum angle between the transition pad connection holes and the transition pad gap is not less than 30°.

[0016] In an exemplary embodiment of the present disclosure, a second countersunk hole is provided on the surface of the base for mounting the quick connector, and the inner diameter of the second countersunk hole is not less than the outer diameter of the top block, so that at least a portion of the top block is sunk into the second countersunk hole.

[0017] In an exemplary embodiment of the present disclosure, the top screw is a bolt, which is threadedly connected to the top screw hole. The bolt rod of the top screw is screwed into the direction of the top block from the end of the base away from the quick-release connector to push the top block away from the base.

[0018] In an exemplary embodiment of the present disclosure, a metal oxide film is provided on the surfaces of the base, the top block and the transition pad.

[0019] In the quick connector removal device disclosed herein, the top block can be quickly installed into the inner hole of the quick connector, and the top screw can pass through the top screw hole on the base to contact the top block. When the top screw advances, a pulling force is applied to the quick connector and the top block to separate them axially, so that the quick connector can be smoothly removed. This solves the problem that the quick connector of the weighing test equipment becomes abnormally deformed and rigid after long-term use, has no fulcrum, and cannot be removed. The top block can prevent the top screw from directly contacting the pressure contact of the load test equipment, preventing the pressure contact from being damaged. Since the main force transmission parts of the device are the bottom of the pressure contact and the top surface of the connector seat of the quick connector, it can avoid direct force on the matching cylindrical surface of the pressure contact and the quick connector, and can also increase the force area and reduce the pressure, which plays a good protective role for the quick connector and the pressure contact during removal. The quick connector removal device disclosed herein has a simple structure and is easy to operate, which can save labor and tooling costs; it greatly improves operational safety and production efficiency, and completely solves the long-standing problem that has existed in the production site for many years. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0021] For a better understanding of the present disclosure, reference may be made to the embodiments shown in the following drawings. The components in the drawings are not necessarily to scale, and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the present disclosure. In addition, related elements or components may have different arrangements as known in the art. In addition, in the drawings, the same reference numerals represent the same or similar components in each drawing. Among them:

[0022] Figure 1 This is a schematic diagram of the overall structure of an exemplary embodiment of the quick connector withdrawal device disclosed herein;

[0023] Figure 2 A schematic diagram of a top block in an exemplary embodiment of a quick connector withdrawal device disclosed herein;

[0024] Figure 3 A schematic diagram of a top block from another perspective in an exemplary embodiment of the quick connector withdrawal device disclosed herein;

[0025] Figure 4 A schematic diagram of the overall structure of an exemplary embodiment of the quick connector withdrawal device disclosed herein from another perspective;

[0026] Figure 5A schematic diagram of a transition pad in an exemplary embodiment of a quick connector withdrawal device disclosed herein;

[0027] Figure 6 A schematic diagram of a base in an exemplary embodiment of a quick connector withdrawal device disclosed herein;

[0028] Figure 7 Schematic diagram of a base from another perspective in an exemplary embodiment of the quick connector withdrawal device disclosed herein.

[0029] The following are the descriptions of the reference numerals:

[0030] 1. Base; 101. Quick-release connector; 11. Top screw hole; 12. Second countersunk hole; 2. Top block; 21. First countersunk hole; 3. Top screw; 4. Transition pad; 41. First transition pad; 42. Second transition pad; 43. Transition pad gap. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the exemplary embodiments of the present disclosure to clearly and completely describe the technical solutions in the exemplary embodiments of the present disclosure. The exemplary embodiments described herein are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure. Therefore, it should be understood that various modifications and changes can be made to the exemplary embodiments without departing from the scope of protection of the present disclosure.

[0032] Unless otherwise specified or explained, the technical or scientific terms used in this disclosure shall have the usual meanings understood by persons of ordinary skill in the field to which this disclosure belongs. The use of "first" and "second" etc. in this disclosure is only used as labels and does not limit the quantity, importance or order of its objects. Words such as "include" or "comprising" mean that the elements appearing before the word include the elements listed after the word and their equivalents, without excluding other elements. The terms "connected" and "fixed" etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a movably connected connection, an integral connection, or a detachable connection. It can be a direct connection or an indirect connection through an intermediate medium.

[0033] Furthermore, it should be understood that directional terms such as "upper," "lower," "top," "bottom," "inner," and "outer" described in the exemplary embodiments of the present disclosure are intended solely to indicate relative positional relationships. For convenience, the description is based on the postures shown in the accompanying drawings and should not be construed as limiting the exemplary embodiments of the present disclosure. It should be understood that these directional terms are relative and may vary depending on the orientation of the components in the accompanying drawings.

[0034] For example, in the description of the exemplary embodiments, reference is made to Figure 1As shown, the load test equipment loads the workpiece from top to bottom, and the pressure contact is installed into the quick connector 101 from top to bottom. The quick connector 101 is provided on the upper surface of the base 1; if Figure 1 The quick connector removal device is shown upside down, the load test equipment loads the workpiece from bottom to top, and the pressure contact is installed into the quick connector 101 from bottom to top, so it can be considered that the quick connector 101 is provided on the lower surface of the base 1. This change will not cause any obstacles to understanding for those skilled in the art.

[0035] Locomotive parts need to be load tested before they are shipped off the assembly line. The load test equipment acts on the test site, such as the frame crossbeam, through an adapter. Due to the production model of locomotives, which produce multiple models in small batches, the adapter needs to be replaced multiple times through the quick connector 101. Specifically, the load test equipment is connected to the pressure contact end, the quick connector 101 is connected to the adapter, and the adapter is connected to the test site. When loading, the pressure contact end is installed in the quick connector 101, and the load of the load test equipment is applied to the test site through the pressure contact, the quick connector 101, and the adapter.

[0036] Due to the significant forces acting between the pressure contact and quick connector 101 of the load test equipment, the quick connector 101 can easily become deformed and abnormally rigid after prolonged use. Forcible removal can irreparably damage the pressure contact and quick connector 101. Due to the limited force points, conventional tooling is unable to effectively remove a rigid quick connector using conventional methods. Separating the pressure contact and quick connector 101 requires damaging the quick connector, which is time-consuming, labor-intensive, and costly.

[0037] To address the above issues, the present disclosure provides a quick connector removal device that can be used to remove the quick connector and pressure contact. The quick connector removal device is used to connect to the quick connector 101, and the quick connector removal device includes:

[0038] Base 1, base 1 has a top screw hole 11, base 1 is used to connect with the quick connector 101;

[0039] The top block 2 is used to be installed in the inner hole of the quick connector 101 and contact the base 1;

[0040] The top screw 3 is inserted into the top screw hole 11 , and the end of the top screw 3 is used to push the top block 2 away from the base 1 so that the pressure contact in the inner hole of the quick connector 101 is separated from the quick connector 101 .

[0041] In the quick connector removal device disclosed herein, the top block 2 can be quickly installed into the inner hole of the quick connector 101, and the top screw 3 can pass through the top screw hole 11 on the base 1 to contact the top block 2. When the top screw 3 moves forward, a pulling force is applied to the quick connector 101 and the top block 2 to separate them in the axial direction, so that the quick connector 101 can be smoothly removed, solving the problem that the quick connector 101 of the weighing test equipment becomes abnormally deformed and rigid after long-term use, has no fulcrum, and cannot be removed. The top block 2 can prevent the top screw 3 from directly contacting the pressure contact of the load test equipment, preventing the pressure contact from being damaged. Since the main force transmission parts of this device are the bottom of the pressure contact and the top surface of the connector seat of the quick connector 101, it can avoid the pressure contact and the matching cylindrical surface of the quick connector 101 from being directly subjected to force, and can also increase the force-bearing area and reduce the pressure, thereby playing a good protective role for the quick connector 101 and the pressure contact during removal. The quick-release connector withdrawal device disclosed herein has a simple structure, is easy to operate, and can save labor and tooling costs; it greatly improves operational safety and production efficiency, and completely solves a long-standing problem in production sites.

[0042] The following is combined with Figure 1 To the attached Figure 7 , the structure and usage method of the quick-release connector withdrawal device disclosed in the present invention are described in detail.

[0043] Please refer to Figure 1 The overall structural diagram of the quick connector withdrawal device shown is as follows: Figure 2 The front view of the top block 2 is shown with Figure 3 A top view of the top block 2 is shown. In an exemplary embodiment of the present disclosure, a first countersunk hole 21 is provided on a surface of the top block 2 near the base 1. The diameter of the first countersunk hole 21 is not less than the diameter of the top screw hole 11, so that the end of the top screw 3 passes through the top screw hole 11 and enters the first countersunk hole 21.

[0044] For example, the inner hole of the quick connector 101 is The outer diameter of the top block 2 can be The quick-connect connector 101 is located in the inner hole of the quick-connect connector 101 and directly contacts the end face of the pressure contact. Figure 1 The double-dotted line in FIG shows a schematic diagram of the pressure contact after being installed in the quick connector 101. For example, the diameter of the first countersunk hole 21 is The depth is 3mm, and the first countersunk hole 21 contacts the top screw 3, which can guide the top screw 3. The top surface of the top block 2 is connected to the pressure contact, which can increase the contact area, reduce the pressure, avoid direct contact between the top screw 3 and the pressure contact, and protect the pressure contact from damage.

[0045] In an exemplary embodiment of the present disclosure, the quick connector removal device further includes a transition pad 4, which is sleeved onto the outer cylindrical surface of the quick connector 101 and contacts the top surface of the connector seat of the quick connector 101. The transition pad 4, the quick connector 101, and the base 1 are sequentially connected along the axial direction of the quick connector 101 via a first threaded connector. The transition pad 4 can cooperate with the first threaded connector to connect with the quick connector 101, increasing the contact area, reducing pressure, and preventing direct contact between the first threaded connector and the quick connector 101, thereby protecting the quick connector 101 from damage.

[0046] For example, the diameter of the outer cylindrical surface of the quick connector 101 is The inner diameter of the inner hole of the transition pad 4 is R56mm, which can be installed in conjunction with the outer diameter of the upper cylinder of the quick connector 101. The outer diameter of the transition pad 4 can be R74mm.

[0047] For example, the annular transition pad 4 is provided with a plurality of transition pad connection holes, for example, the transition pad 4 is provided with four The transition pad connection hole is in The first threaded connection is evenly distributed circumferentially around the distribution circle. The first threaded connection member can be an M10X70 bolt and an M10 nut. The bolt passes through the base 1, quick connector 101, and transition pad 4 from bottom to top and is secured by the nut. Of course, in addition to connecting with bolts and nuts, the quick transition pad 4, quick connector 101, and base 1 can also be clamped with an eccentric screw or a spiral clamping mechanism, as long as the base 1, quick connector 101, and transition pad 4 are firmly connected.

[0048] In an exemplary embodiment of the present disclosure, the transition pad 4 includes a first transition pad 41 and a second transition pad 42. The first transition pad 41 and the second transition pad 42 match each other in the circumferential direction to jointly surround the outer cylindrical surface of the quick connector 101. A transition pad gap 43 is defined between the first transition pad 41 and the second transition pad 42 to disconnect the first transition pad 41 from the second transition pad 42. When the first transition pad 41 and the second transition pad 42 are sleeved on the outer cylindrical surface of the quick connector 101, they can be installed independently, facilitating direct installation of the first transition pad 41 and the second transition pad 42 onto the top surface of the connector seat of the quick connector 101. This prevents them from interfering with the outer cylindrical surface of the quick connector 101. Furthermore, due to the presence of the transition pad gap 43, the first transition pad 41 and the second transition pad 42 are also less likely to interfere with each other during installation.

[0049] In some embodiments of the present disclosure, the transition pad 4 can be composed of more parts. For example, the transition pad 4 can include a first transition pad 41, a second transition pad 42, and a third transition pad. In the circumferential direction, the first transition pad 41, the second transition pad 42, and the third transition pad are matched with each other in sequence in the circumferential direction to jointly surround the outer cylindrical surface of the quick connector 101. The first transition pad 41 and the second transition pad 42, the second transition pad 42 and the third transition pad, and the third transition pad and the first transition pad 41 are all separated by transition pad gaps 43. Each component of the transition pad 4 is an incomplete ring (for example, the first transition pad 41, the second transition pad 42, and the third transition pad), and the angles of the components of the transition pad 4 in the circumferential direction can be the same or different.

[0050] For example, any component of the transition pad 4 may extend at an angle of no more than 180° in the circumferential direction. For example, the first transition pad 41 may extend at an angle of no more than 180°, and the second transition pad 42 may extend at an angle of no more than 180°. Consequently, any component of the transition pad 4 can be installed radially inward from the outside of the quick connector 101's outer cylindrical surface, rather than from the top downward. This facilitates installation and minimizes interference with the quick connector 101's outer cylindrical surface.

[0051] refer to Figure 4 , showing Figure 1 The schematic diagram of the overall structure of the quick connector withdrawal device is a top view schematic diagram. Figure 5 A schematic diagram of a transition pad 4 in an exemplary embodiment is shown. Exemplarily, the transition pad gap 43 is arranged along the diameter direction of the quick connector 101, so that the first transition pad 41 and the second transition pad 42 are arranged axially symmetrically with respect to the transition pad gap 43. That is, the first transition pad 41 and the second transition pad 42 are both semicircular, and the two transition pad gaps 43 between the first transition pad 41 and the second transition pad 42 are collinear. Of course, it can be understood by those skilled in the art that due to the existence of the transition pad gap 43, the first transition pad 41 and the second transition pad 42 are not complete "180° semicircular". The "first transition pad 41 and the second transition pad 42 are both semicircular" described in the present disclosure is only a description of the approximate shape of the first transition pad 41 and the second transition pad 42, so as to facilitate understanding of the scheme of the exemplary embodiment with reference to the accompanying drawings.

[0052] In an exemplary embodiment of the present disclosure, the width of the transition pad gap 43 is not less than 1.5 mm and not more than 2.5 mm. For example, the width of the transition pad gap 43 is 2 mm.

[0053] In an exemplary embodiment of the present disclosure, please continue to refer to Figure 4 and Figure 5The transition pad connection holes for the first threaded connector to pass through are distributed throughout the various components of the transition pad 4 and are staggered relative to the transition pad gap 43. For example, the minimum angle between the transition pad connection holes and the transition pad gap 43 is no less than 15°, which helps to enhance the secure connection between the transition pad 4 and the quick connector 101. The "angle between the transition pad connection hole and the transition pad gap 43" referred to in this disclosure refers to the angle between a radial line connecting the center of the transition pad connection hole to the axis of the quick connector 101 and a radial line connecting the center of the transition pad gap 43 to the axis of the quick connector 101.

[0054] For example, the transition pad connection holes are evenly distributed along the circumference of the transition pad 4. For example, if the transition pad 4 has four transition pad connection holes, two transition pad connection holes are provided on each of the first transition pad 41 and the second transition pad 42, with adjacent transition pad connection holes forming a 90° angle. For example, the minimum angle between the transition pad connection holes and the transition pad gap 43 is no less than 30°.

[0055] In an exemplary embodiment of the present disclosure, a second countersunk hole 12 is provided on the surface of the base 1 for mounting the quick connector 101. The inner diameter of the second countersunk hole 12 is not less than the outer diameter of the top block 2, so that at least a portion of the top block 2 is sunk into the second countersunk hole 12. Figure 6 The schematic diagram of the base 1 is shown and Figure 7 The base 1 is shown in a top view along the axis of the quick connector 101. The top surface of the second countersunk hole 12 contacts the bottom surface of the top block 2, which is beneficial for the installation of the top block 2 and can cooperate with the top screw 3 to provide a reverse force during the removal of the quick connector 101.

[0056] The base 1, the bottom connector seat of the quick connector 101 and the transition pad 4 are provided with corresponding holes for the first threaded connector to connect the base 1, the quick connector 101 and the transition pad 4 together. For example, the outer diameter of the base 1 is The upper surface of the base 1 is in direct contact with the bottom surface of the quick connector 101. The base 1 is provided with four through-holes, and in For example, the diameter of the second countersunk hole 12 is The depth is 2mm.

[0057] In an exemplary embodiment of the present disclosure, referring to Figure 1 、 Figure 6 and Figure 7As shown, the jackscrew 3 is a bolt, which is threadedly connected to the jackscrew hole 11. The bolt shank of the jackscrew 3 is screwed from the end of the base 1 away from the quick connector 101 toward the top block 2. The jackscrew 3 and the jackscrew hole 11 are threaded together. When rotating and tightening, the torque is converted into an axial withdrawal force, generating an end-direction pulling force on the quick connector 101, thereby smoothly withdrawing the quick connector 101 and separating the pressure contact from the quick connector 101. For example, the jackscrew 3 is an M30X130 bolt, and the jackscrew hole 11 is an M30 threaded hole.

[0058] In the exemplary embodiment of the present disclosure, by adding the transition pad 4 and the base 1 , the overall strength of the quick connector withdrawal device can be increased, thereby preventing plastic deformation of the quick connector 101 during withdrawal.

[0059] In an exemplary embodiment of the present disclosure, the jack screw 3 may also be a hydraulic rod, and the jack screw 3 may be lifted by a hydraulic cylinder for removal. Alternatively, the jack screw 3 may also apply a removal force to the quick connector 101 and the ejector block 2 away from each other by means of a pneumatic cylinder, a linear push rod, or the like.

[0060] In an exemplary embodiment of the present disclosure, a metal oxide film is provided on the surfaces of the base 1, top block 2, and transition pad 4. For example, the base 1, top block 2, and transition pad 4 can be made of materials such as 45 steel and Q235. Partial or complete surfaces of the base 1, top block 2, and transition pad 4 are blackened to form a metal oxide film on the workpiece surfaces. The metal oxide film can contain components such as ferrosoferric oxide and ferric oxide, which can protect the base 1, top block 2, and transition pad 4 from air and achieve rust prevention. In another exemplary embodiment, the base 1, top block 2, and transition pad 4 can be partially or entirely made of stainless steel.

[0061] In an exemplary embodiment of the present disclosure, the base 1 is detachably connected to the adapter, for example, by a threaded connection. During loading, the adapter is connected to the loading position of the workpiece, and the load of the load test device is applied to the loading position through the pressure contact, the quick connector 101, and the adapter.

[0062] Exemplarily, both ends of the quick connector 101 can realize quick-change connection, that is, the top of the quick connector 101 realizes quick-change connection with the pressure contact of the load test equipment through the inner hole of the cylinder, and the bottom of the quick connector 101 realizes quick-change connection with the adapter through the base 1. During disassembly, since the effective area between the base 1 and the adapter is large and the load is uniform, there is no problem of difficult disassembly, so the base 1 and the adapter can be easily disassembled. Then, by the method described in the aforementioned exemplary embodiment, the top screw 3 is moved upward to separate the quick connector 101 and the pressure contact. The overall operation is convenient, which can save labor and tooling costs, and improve operational safety and production efficiency.

[0063] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the utility model disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the appended claims.

[0064] It should be understood that the present disclosure is not limited to the precise structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of protection of the present disclosure is limited only by the appended claims.

Claims

1. A quick connector disassembly device, characterized in that: Used to be connected to a quick connector (101), the quick connector removal device comprises: A base (1), the base (1) having a top screw hole (11), the base (1) being used to be connected to the quick-release connector (101); A top block (2) is used to be installed in the inner hole of the quick connector (101) and to be in contact with the base (1); A top screw (3) is inserted into the top screw hole (11), and an end of the top screw (3) is used to push the top block (2) away from the base (1) so that the pressure contact in the inner hole of the quick connector (101) is separated from the quick connector (101).

2. The quick connector removal device according to claim 1, characterized in that: A first countersunk hole (21) is provided on the surface of the top block (2) close to the base (1), and the diameter of the first countersunk hole (21) is not less than the diameter of the top screw hole (11), so that the end of the top screw (3) passes through the top screw hole (11) and enters the first countersunk hole (21).

3. The quick connector removal device according to claim 1, characterized in that: The quick connector disassembly device further comprises a transition pad (4), which is sleeved on the outer cylindrical surface of the quick connector (101) and contacts the top surface of the connector seat of the quick connector (101); the transition pad (4), the quick connector (101) and the base (1) are sequentially connected along the axial direction of the quick connector (101) via a first threaded connector.

4. The quick connector removal device according to claim 3, characterized in that: The transition pad (4) comprises a first transition pad (41) and a second transition pad (42), wherein the first transition pad (41) and the second transition pad (42) match each other in the circumferential direction so as to surround the outer cylindrical surface of the quick connector (101); a transition pad gap (43) is provided between the first transition pad (41) and the second transition pad (42) so as to disconnect the first transition pad (41) and the second transition pad (42) from each other.

5. The quick connector removal device according to claim 4, characterized in that: The transition pad gap (43) is arranged along the diameter direction of the quick connector (101), so that the first transition pad (41) and the second transition pad (42) are arranged axially symmetrically with respect to the transition pad gap (43).

6. The quick connector removal device according to claim 5, characterized in that: The width of the transition pad gap (43) is not less than 1.5 mm and not more than 2.5 mm.

7. The quick connector withdrawal device according to any one of claims 4 to 6, characterized in that: Four transition pad connection holes for the first threaded connector to pass through are evenly distributed on the transition pad (4) along the circumferential direction, and the minimum angle between the transition pad connection holes and the transition pad gap (43) is not less than 30°.

8. The quick connector removal device according to claim 1, characterized in that: A second countersunk hole (12) is provided on the surface of the base (1) for mounting the quick connector (101), and the inner diameter of the second countersunk hole (12) is not less than the outer diameter of the top block (2), so that at least a portion of the top block (2) is sunk into the second countersunk hole (12).

9. The quick connector removal device according to claim 1, characterized in that: The top screw (3) is a bolt, and the top screw (3) is threadedly connected to the top screw hole (11). The bolt rod of the top screw (3) is screwed into the direction of the top block (2) from the end of the base (1) away from the quick-release connector (101) to push the top block (2) away from the base (1).

10. The quick connector removal device according to claim 3, characterized in that: Metal oxide films are provided on the surfaces of the base (1), the top block (2) and the transition pad (4).

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