Assembly aid for circular connectors

Abstract

The utility model relates to an auxiliary assembly tool for a circular connector, including a sleeve, a force-bearing member, and a spring A. The sleeve includes a large-diameter and a small-diameter cylinder. One end of the large-diameter cylinder is closed by an end cover and the two are integrally formed, and a notch is opened on the end cover. After a part is cut off from the cylindrical surface of the large-diameter cylinder, a semicircular groove is formed. The force-bearing member is slidably arranged in the semicircular groove, and a spring A is placed in the groove, and the spring A presses the force-bearing member against the end cover. The sleeve is inserted into the cylinder, and a piston is arranged inside the cylinder. The piston is connected to one end of a pull rod, and a spring B is sleeved on the pull rod. When the pull rod is pulled and released, under the action of spring B, the piston is driven to apply force to the cylinder, so that the cylinder applies force to the force-bearing member, and the force-bearing member applies force to the white column. The beneficial effects achieved by the utility model are: preventing the white column from falling out of the circular connector and making the insertion effect between the white column and the circular connector better.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary assembly of circular connectors, in particular to an auxiliary assembly tool for circular connectors. Background Art

[0002] In the prior art, for a circular connector with a white column of model GRT12-4KT02, a nut is provided on the circular connector, one end of which is connected to a rear accessory, and the other end is provided with a metal sheet extending through the nut; a white column matching the circular connector is inserted from the upper end of the circular connector and inserted into the metal sheet of the circular connector; the white column must be fixed in the circular connector so that the white column does not fall from the top of the circular connector, but there is no auxiliary assembly tool in the current market or industry that can fix the white column.

[0003] The current positioning force method adopts a push-type force. A positioning point is set at the manual force position, and the positioning point of the white column is fixed manually. When applying force, it must and can only be pressed to the positioning position. The force positioning point is uniformly fixed, but this push-type force cannot accurately control the force. After pushing, the white column and the circular connector are not well fixed.

[0004] Based on this, the inventor designed the positioning and force of the auxiliary assembly tool for the circular connector, which can well install the white column and the circular connector and ensure the stability of the assembly quality between the circular connector and the white column. Utility Model Content

[0005] The utility model aims to overcome the shortcomings of the prior art and provide an auxiliary assembly tool which is convenient for clamping a circular connector, prevents the white column from falling off and makes the insertion effect between the white column and the circular connector better.

[0006] The purpose of the utility model is achieved through the following technical solutions: an auxiliary assembly tool for a circular connector, a nut piece is sleeved on the circular connector, and its two ends are respectively a tail thread column and a retractable metal sheet, and a white column piece is inserted into the metal sheet of the circular connector, characterized in that it includes a sleeve, a force-bearing member, a spring A,

[0007] The sleeve comprises a large diameter cylinder and a small diameter cylinder, the two are connected, the connection position is stepped and has a stepped table, one end of the large diameter cylinder is closed by an end cover and the two are integrally formed, and a notch is opened on the end cover; after a part is cut off from the cylindrical surface of the large diameter cylinder, a semicircular groove is exposed inside to form;

[0008] A through hole is formed in the force bearing member, and a plurality of protrusions with equal spacing are arranged on the inner wall of the through hole in the circumferential direction;

[0009] When the force-bearing member is installed, the force-bearing member is axially slidably arranged in the semicircular groove, and a spring A is placed in the semicircular groove, with one end of the spring A resting on the side surface of the force-bearing member and the other end resting on the left side surface of the large-diameter cylinder, thereby resting the force-bearing member on the end cover;

[0010] When the white column is inserted into the metal sheet of the circular connector, the force-bearing member is pushed axially away from the end cover, and the force-bearing member and the end cover form a clamping distance in the semicircular groove; the circular connector and the white column are placed in the clamping distance, and the tail threaded column of the circular connector is located in the notch. Under the rebound of spring A, the force-bearing member is sleeved on the left end of the white column and multiple protrusions are against the left end face of the white column, and the end cover is against the right end face of the nut.

[0011] As a preferred technical solution of the present application, the auxiliary assembly tool for a circular connector is characterized in that: the force-bearing member includes a disc and a short cylindrical tube; a through hole is arranged inside the short cylindrical tube, and five protrusions are arranged on the inner wall of the through hole at equal intervals inward along the circumferential direction, and the protrusions are located in the same plane, which is the cross-section of the short cylindrical tube.

[0012] As a preferred technical solution of the present application, the disk of the force-bearing member is sleeved on one end of the short cylindrical tube and the two are integrally formed, and the outer circumference of the disk has a semicircular ring edge; during installation, the force-bearing member is placed in the semicircular groove, the disk is matched with the bottom of the semicircular groove, the ring edge is matched with the left and right groove edges of the semicircular groove, and the force-bearing member can slide on the semicircular groove.

[0013] As a preferred technical solution of the present application, the size of the notch on the end cover is consistent with the diameter of the rear threaded column of the circular connector.

[0014] As a preferred technical solution of the present application, it also includes a pull rod assembly; the pull rod assembly has a cylinder, the cylinder is installed in a sleeve, the end of the small-diameter cylinder is provided with an external thread and is threadedly tightened with a cap; the interior of the cylinder has a piston cavity, a piston is provided in the piston cavity, the piston is connected to the pull rod, and the other end of the pull rod passes through the cap and extends out of the sleeve; a spring B is sleeved on the pull rod, one end of the spring B rests on the piston, and the other end rests on the inner wall of the cap.

[0015] As a preferred technical solution of the present application, it also includes a pull rod assembly; the pull rod assembly has a cylinder, the cylinder is installed in a sleeve, and the end of the small-diameter cylinder is screwed with a cap through a thread; the cylinder has a piston cavity, a piston is placed in the piston cavity, the piston is connected to the pull rod, and the pull rod passes through the cap and extends out of the sleeve; a spring C is sleeved on the pull rod, and the two ends of the spring C respectively abut against the left side surfaces of the piston and the large-diameter cylinder.

[0016] The utility model has the following advantages:

[0017] (1) The utility model designs a force-bearing member structure, wherein the force-bearing member is placed in a semicircular groove in an axially sliding manner, and then a spring is placed, with the two ends of the spring respectively resting on the left side wall of the force-bearing member and the large-diameter cylinder; the circular connector inserted into the white column is clamped into the end cover notch of the large-diameter cylinder, and the short cylindrical tube of the force-bearing member can rest on the end surface of the white column, pressing and wrapping the white column and fixing the white column with the internal protrusions. This positioning method can well insert the white column into the metal sheet of the circular connector to prevent the white column from falling off;

[0018] (2) This scheme uses the rebound of the spring to apply force. When the ball is manually pulled backward, the piston will also move backward when the pull rod is pulled backward. When the piston moves, the spring between the piston and the cap shrinks, and the pull rod is released. Under the action of the rebound force of the spring, the piston moves forward, and the piston causes the cylinder to move forward. The cylinder impacts the force-bearing part, and the force-bearing part punches the white column. The spring rebound method is used for punching, and the ball can be pulled to the same distance each time, so that the force of the spring rebound is consistent, and the force of each punching can be accurately controlled, so that the white column can be better inserted into the metal sheet, thereby ensuring the quality of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the auxiliary assembly tool of the utility model from a front view angle;

[0020] Figure 2 This is a schematic diagram of the structure of the auxiliary assembly tool of the utility model from a side view angle;

[0021] Figure 3 This is a schematic diagram of the structure of the auxiliary assembly tool of the utility model after being clamped with a circular connector from a front view;

[0022] Figure 4 This is a schematic diagram of the structure of the auxiliary assembly tool of the utility model after being clamped into a circular connector from a side view;

[0023] Figure 5 It is a schematic diagram of the structure of the cross-section of the auxiliary assembly tool of the utility model;

[0024] Figure 6 This is a schematic structural diagram of a cross-section of the auxiliary assembly tool of the utility model after being clamped with a circular connector;

[0025] In the figure: 1-circular connector, 2-nut, 3-tail threaded column, 4-force-bearing member, 5-protrusion, 6-sleeve, 7-large diameter cylinder, 8-small diameter cylinder, 9-semicircular groove, 10-end cover, 11-spring A, 12-pull rod assembly, 13-cylinder, 14-pull rod, 15-spring B, 16-cap, 17-ball, 18-piston, 20-white column. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0027] It should be noted that the directions or positional relationships indicated by "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use, or are the directions or positional relationships commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0029] It should be noted that the circular connector 1 is cylindrical in shape, with a nut member 2 sleeved on the connector. One end of the connector is a tail threaded column 3, which is connected to the rear accessory. A circle of rings is provided on the thread, and grooves are provided on the rings at equal distances. The rings are integrally formed with the circular connector 1, and the upper surface of the rings fits into the lower surface of the nut member 2. The other end of the circular connector 1 is provided with a retractable metal sheet, which extends through the nut member 2; the white column member 20 is cylindrical in shape, and the white column member 20 is inserted from the upper half of the connector and inserted into the metal sheet of the circular connector.

[0030] In the prior art, for a circular connector 1 with special components of model GRT12-4KT02, a white column 20 needs to be fixed inside the circular connector 1 so that the white column 20 does not fall from the top of the circular connector 1. Currently, there is no auxiliary assembly tool on the market that can fix the white column 20.

[0031] Therefore, based on the above issues, see Figure 1 The utility model proposes an auxiliary assembly tool for a circular connector 1 to solve the problem.

[0032] (Example 1)

[0033] See also Figure 1 to Figure 4 , an auxiliary assembly tool for a circular connector 1 proposed in this embodiment includes a force-bearing member 4, a sleeve 6, a spring A11 and a circular connector 1;

[0034] The circular connector 1 has the same structure as other circular connectors 1 on the market; a nut 2 is sleeved on it, one end of which is a tail threaded column 3, which is connected to the rear attachment, and the other end of which is provided with a retractable metal sheet; the white column 20 is inserted from the upper half of the connector and inserted into the metal sheet of the circular connector 1;

[0035] The sleeve 6 is formed by connecting a large diameter cylinder 7 and a small diameter cylinder 8. The right end of the small diameter cylinder 8 is connected and connected to the left end of the large diameter cylinder 7. The connection position is stepped and has a stepped table. The right end of the large diameter cylinder 7 is closed by an end cover 10 and the two are an integral structure. A notch is opened on the end cover 10. After a part of the cylindrical surface of the large diameter cylinder 7 is cut off, the remaining half forms a semicircular groove 9.

[0036] The force-bearing member 4 is in the shape of a short cylindrical tube, a through hole is formed in the force-bearing member 4, and a plurality of equally spaced protrusions 5 are arranged on the inner wall of the through hole in the circumferential direction. The plurality of protrusions 5 are located in the same plane, which is the cross section of the short cylindrical tube;

[0037] When installing, the force-bearing member 4 is placed in the semicircular groove 9 so that the force-bearing member 4 can slide axially in the semicircular groove; a spring A11 is placed in the semicircular groove, one end of the spring A11 is against the inner wall of the left end of the large-diameter cylinder 7, and the other end is against the side of the force-bearing member 4; under the rebound effect of the spring A11, the force-bearing member 4 can be pressed against the end cover 10;

[0038] When working, first insert one end of the white column 20 into the metal sheet in the circular connector 1, and push the force-bearing member 4 axially to separate the force-bearing member 4 from the end cover 10. After separation, the force-bearing member 4 and the end cover 10 form a clamping distance in the semicircular groove 9; then clamp the auxiliary assembly tool with the circular connector 1, that is, clamp the notch of the end cover 10 of the semicircular groove 9 into the tail threaded column 3 of the circular connector 1, and place the circular connector 1 and the white column 20 therein at the clamping distance position. Under the rebound action of the spring A11, the force-bearing member 4 covers the left end of the white column 20, and the multiple protrusions 5 therein abut against the left end surface of the white column 20. At the same time, the end cover 10 abuts against the right side surface of the nut member 2;

[0039] The present solution designs a structure of a force-bearing member 4 for the positioning tooling for fixing the white column 20 on the metal sheet. The force-bearing member 4 presses the white column 20 tightly, so that the white column 20 can be well inserted into the metal sheet to prevent the white column 20 from falling off; for the positioning tooling at the rear end of the circular connector 1, a sleeve 6 that can clamp the rear end of the connector is designed, and the notch of the end cover 10 of the sleeve 6 can easily clamp the rear end of the connector, which is very convenient; the traditional pushing method cannot control the force applied to the white column 20. In comparison, the present solution uses the rebound of the spring to punch the white column 20. The force of each spring rebound is consistent, and the force of each forward punching of the force-bearing member 4 is also certain. The force of each punching can be accurately controlled, so that the white column 20 is well inserted into the metal sheet, thereby ensuring the quality of assembly.

[0040] In this embodiment, the force-bearing member 4 includes a disc and a short cylindrical tube. A through hole is arranged inside the short cylindrical tube. Five protrusions 5 are arranged inwardly along the circumferential direction on the inner wall of the through hole. The protrusions 5 are located in the same plane, which is the cross-section of the short cylindrical tube. The protrusions 5 have a protruding depth of 1 mm and are arranged at equal intervals. A disc is sleeved on one end of the short cylindrical tube and the two are integrally formed. The outer circumference of the disc has a semicircular annular edge. During installation, the force-bearing member 4 is placed in the semicircular groove 9, and the short cylindrical tube is placed opposite the white column 20. The disc is matched with the bottom of the semicircular groove 9, and the two ends of the annular edge are matched with the left and right groove edges of the semicircular groove 9, so as to facilitate the force-bearing member 4 to slide on the semicircular groove 9.

[0041] It should be noted that when the force-bearing member 4 is installed, the inner wall of the short cylindrical tube fits the white column 20, and the outer side is close to the inner wall of the nut member 2 of the circular connector 1. The short cylindrical tube can wrap the white column 20 inserted therein, and fix the white column 20 by using five equidistant protrusions 5 inside the through hole. When the white column 20 is inserted into the metal sheet, the positioning of the circular connector 1 and the white column 20 therein is completed.

[0042] In this embodiment, the size of the notch on the end cover 10 is consistent with the diameter of the rear threaded column 3 of the circular connector 1 .

[0043] It should be noted that, by measuring the diameter of the thread in the recess where the outer ring of the circular connector 1 and the rear accessory part are connected, the positioning size of the notch in the end cover of the sleeve 6 is determined; because the assembly of the circular connector 1 needs to be carried out after the cable is crimped, when the circular connector 1 and the white column 20 are installed with auxiliary assembly tools, the sleeve 6 is designed to be semi-open, which can more effectively position the circular connector 1 and the white column 20 without being interfered by the cable.

[0044] (Example 2)

[0045] See also Figure 1 and Figure 3 On the basis of Example 1, a further structural design is performed, which further includes a pull rod assembly 12; the pull rod assembly 12 includes a cylinder 13, a pull rod 14, a spring B15 and a cap 16,

[0046] The cap 16 is a cylinder, which is hollow inside and has a second through hole. The inner wall of the cap 16 is provided with threads in the circumferential direction. The small diameter cylinder 8 and the large diameter cylinder 7 are integrally formed. The end of the small diameter cylinder 8 away from the large diameter cylinder 7 is provided with an external thread, which is fixedly connected to the cap 16 through threads.

[0047] A cylinder 13 is installed in the sleeve 6, and a spring A11 is sleeved outside the cylinder 13, which can prevent the spring from falling or being lost during operation; a stepped hole is provided inside the cylinder 13, the left part of the stepped hole has a small diameter, and the right part has a large diameter, a piston 18 is provided in the stepped hole of the right part with a large diameter, the piston 18 is connected to one end of the pull rod 14, the other end of the pull rod 14 passes through the cap 16, a spring B15 is sleeved on the pull rod 14, one end of the spring B15 abuts against the piston 18, and the other end abuts against the inner wall of the cap 16; a ball 17 is installed at the end of the pull rod 14 that passes through the cap 16;

[0048] During installation, the cap 16 is connected to the small diameter cylinder 8 of the sleeve 6 by threads, so that the pull rod assembly 12 is connected to the sleeve 6;

[0049] When stamping is carried out, when a person manually pulls the ball 17 backward, the pull rod 14 and the piston 18 move backward, and the spring B15 mounted on the pull rod 14 shrinks. After releasing the hand, the spring B15 rebounds. Since the two ends of the spring B15 respectively abut against the piston 18 and the inner wall of the cap 16, the piston 18 moves forward and applies force to the cylinder 13. The cylinder 13 moves forward, and one end of the cylinder 13 abuts against the force-bearing member 4. The cylinder 13 applies force to the force-bearing member 4. Under the rebound action of the spring B15, the force-bearing member 4 stamps the white column 20 forward.

[0050] (Example 3)

[0051] On the basis of Example 1, a further structural design is performed, which further includes a pull rod assembly 12; the pull rod assembly 12 includes a cylinder 13, a pull rod 14, a spring C and a cap 16.

[0052] Among them, a cylinder is installed into the sleeve 6 at the end of the small-diameter cylinder 8, and a stepped hole with a small diameter on the left part and a large diameter on the right part is arranged inside the cylinder 13. The cylinder 13 is inserted into the spring A11 along the axial direction of the sleeve 6 - that is, the spring A11 is sleeved outside the cylinder;

[0053] The cap 16 has a second through hole, the inner wall of the cap 16 is provided with a thread, and the end of the small diameter cylinder 8 is provided with an external thread;

[0054] A piston 18 is arranged in the stepped hole with a large diameter in the right part of the cylinder 13, and the piston 18 is connected to the pull rod 14. The other end of the pull rod 14 passes through the second through hole of the cap 16, and a ball 17 is installed at the end that passes through.

[0055] A spring C is sleeved on the pull rod 14, one end of the spring C abuts against the piston 18, and the other end abuts against the inner wall of the left end of the large diameter cylinder 7;

[0056] During installation, the cap 16 is connected to the end of the small diameter cylinder 8 by threads, and the tie rod 14 and the piston 18 are inserted into the stepped hole of the right part of the cylinder 13 in the sleeve 6, so that the tie rod assembly 12 is connected to the sleeve 6;

[0057] When stamping is realized, when a person manually pulls the ball 17 backward, the pull rod 14 and the piston 18 move backward, and the spring C mounted on the pull rod 14 is tightened. After releasing the hand, the spring C rebounds. Since the two ends of the spring C respectively abut against the piston 18 and the inner wall of the left end of the large-diameter cylinder 7, the piston 18 moves forward and applies force to the cylinder 13. The cylinder 13 moves forward, and one end of the cylinder 13 abuts against the force-bearing member 4. The cylinder 13 applies force to the force-bearing member 4. Under the rebound action of the spring C, the force-bearing member 4 stamps the white column 20 forward.

[0058] It should be noted that, preferably, when implementing stamping, the force-bearing member 4 can be pushed backward to slide in the semicircular groove 9, so that the force-bearing member 4 is away from the end face of the white column 20, and the hand is released. The force-bearing member 4 will stamp the white column 20 forward under the rebound action of the spring A11; each time the force-bearing member 4 is pushed backward, the sliding distance is consistent, and the force of the force-bearing member 4 stamping forward each time is also certain, so the force of each stamping can be accurately controlled, so that the white column 20 can be better fixed on the metal sheet.

[0059] The invention is an auxiliary assembly tool for a circular connector 1. When working, the outer ring of the circular connector 1 is positioned, and the auxiliary assembly tool is clamped and positioned at the recess where the outer ring of the connector is connected to the rear accessory part - that is, the notch of the end cover 10 of the semicircular groove 9 is clamped into the rear threaded column 3 of the circular connector 1, the white column 20 is inserted into the metal sheet of the connector, and then the force-bearing member 4 is placed on the side of the white column 20. By manually pulling the ball 17 on the pull rod, the rebound force drives the spring, and the cylinder applies a certain force to the force-bearing member 4. The force-bearing member 4 also applies force to the white column 20, and the white column 20 inserted into the metal sheet is fixed in the circular connector 1;

[0060] The present invention designs a force-bearing member 4 as a positioning fixture for fixing the white column 20 on the metal sheet. The force-bearing member 4 is designed with five protruding protrusions 5 on the inner wall, which can press against the end face of the white column 20 to fix the white column 20 on the metal sheet of the connector. At the same time, the force-bearing member 4 presses the white column 20 tightly, so that the white column 20 can be well inserted into the metal sheet to prevent the white column 20 from falling off. The positioning fixture at the rear end of the circular connector 1 is designed with a sleeve 6 that can snap into the rear end of the connector. The notch of the end cover 10 of the sleeve 6 can easily snap into the rear end of the connector, which is very convenient. At the same time, a semicircular groove 9 is designed to avoid the connection being stuck in actual operation. The influence of the cable on the connector; the traditional pushing method cannot control the force applied to the white column 20. In comparison, the present solution utilizes the rebound of the spring to punch the white column 20, and can control the force of each punching, so that the white column 20 is well inserted into the metal sheet, thereby ensuring the quality of assembly; compared with the pushing type force, the pushing type force is greater and can only be pushed once. If it is not in place once, the metal sheet of the connector may be damaged when pushing for the second time; the force application method of the present solution is to utilize the rebound of the spring to apply force, and the force of a single force is relatively small, so as to facilitate multiple force applications.

[0061] It should be noted that the semicircular groove 9 is in the shape of a cylinder, and the semicircular groove 9 is cut inward along the front and rear circular surfaces, first from one end face diameter of the cylinder to the other end face diameter, and then the remaining semi-cylinder is hollowed out to form a semicircular groove 9;

[0062] Stepped table top: The diameter of the small diameter cylinder 8 is smaller than that of the large diameter cylinder 7. When the side circular surface of the small diameter cylinder 8 is coaxially connected with the side circular surface of the large diameter cylinder 7, a step-like end surface is formed.

[0063] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An auxiliary assembly tool for a circular connector (1), wherein a nut member (2) is sleeved on the circular connector (1), and the two ends of the nut member are a tail thread column (3) and a retractable metal sheet, respectively. The white column member (20) is inserted into the metal sheet of the circular connector (1), and the characteristics are: It comprises a sleeve (6), a force-bearing member (4), and a spring A (11). The sleeve (6) comprises a large diameter cylinder (7) and a small diameter cylinder (8), the two being connected, the connection position being stepped and having a stepped table surface, one end of the large diameter cylinder (7) being closed by an end cover (10) and the two being integrally formed, and a notch being provided on the end cover (10); after a portion is cut off from the cylindrical surface of the large diameter cylinder (7), a semicircular groove (9) is exposed inside; The force-bearing member (4) is provided with a through hole, and a plurality of protrusions (5) with equal spacing are arranged circumferentially on the inner wall of the through hole; When the force-bearing member (4) is installed, the force-bearing member (4) is slidably arranged in the semicircular groove (9) along the axial direction, and a spring A (11) is placed in the semicircular groove (9). One end of the spring A (11) abuts against the side surface of the force-bearing member (4), and the other end abuts against the left side surface of the large-diameter cylinder (7), thereby abutting the force-bearing member (4) against the end cover (10); When the white column (20) is inserted into the metal sheet of the circular connector (1), the force-bearing member (4) is pushed axially away from the end cover (10), and the force-bearing member (4) and the end cover (10) form a clamping distance in the semicircular groove (9); the circular connector (1) and the white column (20) are placed in the clamping distance, and the tail threaded column (3) of the circular connector (1) is located in the notch. Under the rebound of the spring A (11), the force-bearing member (4) is sleeved on the left end of the white column (20) and the plurality of protrusions (5) are pressed against the left end surface of the white column (20), and the end cover (10) is pressed against the right end surface of the nut member (2).

2. The auxiliary assembly tool for a circular connector (1) according to claim 1, characterized in that: The force-bearing member (4) comprises a disc and a short cylindrical tube; a through hole is arranged in the short cylindrical tube, and five protrusions (5) are arranged at equal intervals inward along the circumferential direction on the inner wall of the through hole; the protrusions (5) are located in the same plane, which is the cross section of the short cylindrical tube.

3. The auxiliary assembly tool for a circular connector (1) according to claim 2, characterized in that: The disk of the force-bearing member (4) is sleeved on one end of the short cylindrical tube and the two are integrally formed, and the outer circumference of the disk has a semicircular annular edge.

4. The auxiliary assembly tool for a circular connector (1) according to claim 1, characterized in that: The size of the notch on the end cover (10) is consistent with the diameter of the rear threaded column (3) of the circular connector (1).

5. The auxiliary assembly tool for a circular connector (1) according to claim 1, characterized in that: Also includes a pull rod assembly (12); The pull rod assembly (12) has a cylinder (13), which is installed in the sleeve (6). The end of the small diameter cylinder (8) is provided with a thread which is screwed to the internal thread of the cap (16). The cylinder (13) has a piston cavity inside, in which a piston (18) is arranged, and the piston (18) is connected to the pull rod (14), and the other end of the pull rod (14) passes through the cap (16) and extends out of the sleeve (6); A spring B (15) is sleeved on the pull rod (14), one end of the spring B (15) abuts against the piston (18), and the other end abuts against the inner wall of the cap (16).

6. The auxiliary assembly tool for a circular connector (1) according to claim 1, characterized in that: Also includes a pull rod assembly (12); The pull rod assembly (12) has a cylinder (13), which is installed in the sleeve (6). The end of the small diameter cylinder (8) is provided with a thread which is screwed to the internal thread of the cap (16). The cylinder (13) has a piston cavity, in which a piston (18) is placed, the piston (18) is connected to a pull rod (14), and the pull rod (14) passes through a cap (16) and extends out of the sleeve (6); A spring C is sleeved on the pull rod (14), and two ends of the spring C respectively abut against the left side surfaces of the piston (18) and the large-diameter cylinder (7).

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