A high-density pin-type rectangular electrical connector special-purpose plug-in tool

Abstract

The application discloses a high-density pin type rectangular electric connector special plug tool, which comprises a left plug pull rod assembly, a right plug pull rod assembly, a display pointer, a grip inner pull handle, a grip outer pull handle and a shell. The left plug pull rod assembly and the right plug pull rod assembly each comprise a movable pull rod assembly and a fixed pull rod, and the size of the movable pull rod assembly along the length direction thereof is adjustable. The grip inner pull handle and the grip outer pull handle are in sliding connection. The movable pull rod assembly is connected to the grip inner pull handle, and the fixed pull rod is connected to the grip outer pull handle, and the two can move along with the relative sliding of the grip inner pull handle and the grip outer pull handle. The end of the movable pull rod assembly and the end of the fixed pull rod are each provided with a clamping assembly for connecting the plug and / or the socket of the rectangular electric connector. The shell is fixedly connected to the grip outer pull handle and forms a display panel with the display pointer. The problems that the high-density pin type electric connector cannot be manually plugged and disconnected due to the excessively large plug force and is easy to be damaged and the cable is damaged are solved.

Description

TECHNICAL FIELD

[0001] The application relates to a plug-in tool special for a rectangular electric connector, and belongs to the technical field of electric connector plugging. BACKGROUND

[0002] The pin-type rectangular electric connector is widely applied in electrical systems due to high core point density, small connector volume, high electrical connection reliability and other characteristics. It is the preferred connector type for the electrical interface of small-sized electrical equipment, and in the field of aerospace where small-sized equipment is required, the rectangular electric connector accounts for more than 90% of the total number of electric connectors used in missile instruments and equipment.

[0003] However, the pin-type rectangular electric connector has the problems of difficult manual plugging and damage in the plugging process due to high plugging force requirement and high core point density of the electric connector, which in turn limits the further integration and miniaturization of instruments and equipment, because:

[0004] 1) The tight fitting relationship between the pin and the socket of the pin-type electric connector provides high reliability for electrical connection, which can ensure that the electrical connection remains in the on state under vibration, impact, temperature cycle and other environments, but at the same time, it also puts forward higher requirements for the plugging force; according to the design specification, the plugging force between the pin and the socket of a single core point is required to be between 1.2N and 1.5N, therefore, while increasing the number of core points of the electric connector, the plugging force required for plugging and disassembling (disconnecting) the entire electric connector will also increase in direct proportion, which is the reason why the maximum core point number of the rectangular electric connector used in missiles is only 74, and the required plugging force for operation is more than 90N. Considering the plugging operation mode of the rectangular electric connector and the limitation of the operation space in the missile, manual plugging by workers is already difficult, and problems such as incomplete plugging, uneven stress damage to the electric connector during disassembly, and accidental pulling of the cable causing the welding point to break often occur. The above reasons seriously limit the practical application of the pin-type rectangular electric connector with higher core point number and higher core point density.

[0005] 2) At present, the rapid development of integrated circuits has fully created conditions for the high integration and miniaturization of electronic equipment and boards. Taking a signal acquisition board as an example, a standard drawer board with a size of 170mmx100mmx24.64mm (lengthxwidthxheight) used on a missile can easily realize the acquisition function of not less than 100 sensor signals. If the minimum number of points occupied by a single sensor is calculated, the number of core points required for the electric connector matched with the board is more than 300-400. If a single rectangular electric connector with more than 300 cores is used, the plug-in force required is more than 360N, and manual plug-in and disassembly operation cannot be realized. However, if a single 74-core electric connector is used, at least 5 are required, and the width of a single 74-core electric connector is 61mm. If only 30mm of operation space is reserved on one side, the installation space is 121mm, so only one electric connector can be installed in the length direction of the board with a length of 170mm. In order to install 3-4 operable electric connectors, the equipment size of the signal acquisition and coding device with an acquisition capacity of 50 channels used on the missile must be designed according to the height of the 4-drawer board, which causes a waste of space of at least 3 drawers. It can be seen that the limitation of high-density and high-core-point electric connectors in actual use has seriously restricted the integration and miniaturization development of instruments and equipment.

[0006] Therefore, only by solving the difficult problem of plug-in and disconnection operation of high-density and high-core-point rectangular electric connectors can the limitation in actual application be eliminated, and the level of integration and miniaturization of electrical systems can be greatly improved. SUMMARY

[0007] The technical problem solved by the present application is to overcome the shortcomings of the prior art and provide a high-density pin-type rectangular electric connector special plug-in tool, which solves the problems of excessive plug-in force required in the plug-in and disconnection process of high-density pin-type electric connectors, manual plug-in, and easy damage to the electric connector and the cable. The present application can fundamentally solve the plug-in difficulty of high-density pin-type rectangular electric connectors, eliminate the application limitation of high-density pin-type rectangular electric connectors in high-integration electrical systems, and greatly improve the integration and miniaturization level of aerospace electrical equipment and electrical systems.

[0008] The technical solution of the present application is:

[0009] A high-density pin-type rectangular electric connector special plug-in tool, comprising a left plug-in pull rod assembly, a right plug-in pull rod assembly, a pull rod installation and adjustment assembly, a display pointer, a grip inner pull handle, a grip outer pull handle, and a shell.

[0010] The left and right plug-pull rod assemblies are mirror images and each includes a movable pull rod assembly and a fixed pull rod, the movable pull rod assembly being adjustable in size along its length direction; the end of the movable pull rod assembly and the fixed pull rod is provided with a clamping assembly for connecting the plug and / or the socket of the rectangular electric connector;

[0011] The inner and outer grip handles are slidingly connected and can slide relative to each other under the force of a human hand; the movable pull rod assembly is connected to the inner grip handle, the fixed pull rod is connected to the outer grip handle through the pull rod installation and adjustment assembly, and the two can move with the relative sliding of the inner and outer grip handles.

[0012] The end of the movable pull rod assembly and the fixed pull rod is provided with a clamping assembly for connecting the plug and / or the socket.

[0013] The outer shell is fixedly connected to the outer grip handle and forms a display panel with the display pointer.

[0014] The movable pull rod assembly includes a front movable pull rod, a rear movable pull rod, and a locking assembly, the front movable pull rod and the rear movable pull rod are slidingly connected along the length direction of the front movable pull rod, and the locking assembly is used for locking the front movable pull rod and the rear movable pull rod.

[0015] The locking assembly includes a locking hole, a movable pull rod locking button, a button return spring, and a movable pull rod locking pin, the rear movable pull rod is provided with an expansion slot, one end of the front movable pull rod slides in the expansion slot, the locking hole is formed in the front movable pull rod, the locking slot includes a front locking slot, a locking pin sliding slot, and a rear locking slot, the movable pull rod locking pin passes through the rear movable pull rod and the locking slot, the movable pull rod locking button is connected to both ends of the movable pull rod locking pin and located on one side of the expansion slot, the button return spring is connected between the movable pull rod locking button and the rear movable pull rod, and the front locking slot and the rear locking slot respectively extend from both ends of the locking pin sliding slot towards the direction of the button return spring.

[0016] The pull rod installation and adjustment assembly is used for adjusting the distance between the two fixed pull rods, the movable pull rod assembly and the fixed pull rod included in the left plug-pull rod assembly are connected through a limiting assembly, and the movable pull rod assembly and the fixed pull rod included in the right plug-pull rod assembly are connected through a limiting assembly.

[0017] The limiting assembly includes a sliding rail and a sliding groove, the side of the movable pull rod assembly facing the fixed pull rod is provided with a sliding rail along its length direction, and the fixed pull rod is provided with a sliding groove matched with the sliding rail.

[0018] The pull rod mounting and adjusting assembly comprises an adjusting worm, a mounting fixed slide rail, a mounting fixed rod and a support, the support and the mounting fixed slide rail are fixedly connected with the grip outer handle, the adjusting worm passes through the support and is rotationally connected with the support, the adjusting worm passes through the fixed pull rod and is threadedly connected with the fixed pull rod, the threads of the adjusting worm at the positions connected with the two fixed pull rods are reverse threads, the end of the fixed pull rod is slidingly connected with the mounting fixed slide rail, the axial direction of the adjusting worm and the sliding direction of the fixed pull rod are both along the straight line where the two fixed pull rods are located and are perpendicular to the two fixed pull rods.

[0019] The end of the grip inner handle away from the grip outer handle is connected with the mounting fixed rod, and the end of the movable pull rod assembly is slidingly connected with the movable pull rod assembly along the axial direction of the adjusting worm.

[0020] The outer shell is provided with a slot and a scale, and the fixed pull rod is fixedly connected with a display pointer, and the display pointer passes through the slot.

[0021] The connector fixing pin mounted at the end of the fixed pull rod and the connector fixing pin mounted at the end of the front movable pull rod are coaxial and perpendicular to the fixed pull rod, and the connector fixing pin and the connector fixing pin have an activity amount in the respective axial direction.

[0022] The top ends of the fixed pull rod and the front movable pull rod are respectively provided with limit stop pieces, and the limit stop pieces are respectively abutted against the opposite sides of the plug and / or the socket, and the abutted sides are the directions along which the plug and / or the socket are inserted and pulled out, and the directions are perpendicular to the two fixed pull rods.

[0023] In summary, the present application at least has the following beneficial technical effects:

[0024] 1. The rectangular electric connector special plug-in tool designed with the grip force structure, the inner and outer grip handles drive the linear displacement of the movable pull rod and the fixed pull rod respectively, and then drive the relative movement of the plug and the socket in the plug-in direction, so that the plug and the socket of the electric connector are plugged or disassembled;

[0025] 2. The rectangular electric connector special plug-in tool has two working modes, one tool has the functions of plugging and disassembling the rectangular electric connector, and is convenient to use;

[0026] 3. The adjusting mechanism is designed, the clamping width can be continuously adjusted according to the size of the rectangular electric connector, and the corresponding connector specification and size can be accurately displayed, so that the plug-in of the rectangular electric connector with different specifications in a wide size range can be adapted;

[0027] 4. The limit structure is designed, which can ensure that the plug and the socket are centered and aligned during the plug-in process of the electric connector, and effectively avoid the damage of the electric connector pin, socket and shell;

[0028] 5. The cable is not associated with the electrical connector during use, and no external force is introduced to the cable, which can effectively protect the cable root welding point and avoid damage;

[0029] 6. The pure mechanical structure is realized without additional energy such as electricity, and the structure is simple, easy to maintain, and high in reliability. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 Overall appearance;

[0031] Figure 2 Internal component exploded view;

[0032] Figure 3 Pull rod assembly and electrical connector connection structure;

[0033] Figure 4 Pull rod assembly and electrical connector connection state;

[0034] Figure 5 Front movable pull rod 111 structure;

[0035] Figure 6 Rear movable pull rod 112 structure;

[0036] Figure 7 Locking button 114, button return spring 115 and locking pin 116;

[0037] Figure 8 Movable pull rod assembly 11 elongation state;

[0038] Figure 9 Movable pull rod assembly 11 extension adjustment process;

[0039] Figure 10 Movable pull rod assembly 11 shortening state;

[0040] Figure 11 Fixed pull rod 12 structure;

[0041] Figure 12 Fixed pull rod 12 and grip inner pull handle 5 installation structure;

[0042] Figure 13 Movable pull rod assembly 11 and outer pull handle 6 installation structure;

[0043] Figure 14 Worm adjusting mechanism;

[0044] Figure 15 Pointer display system;

[0045] Figure 16 Clamping width adjustment embodiment;

[0046] Figure 17 Electrical connector exploded embodiment;

[0047] Figure 18 Electrical connector plug-in embodiment.

[0048] Reference signs:

[0049] 0, rectangular electrical connector special plugging tool (the invention);

[0050] 1, left plugging pull rod assembly; 2, right plugging pull rod assembly; 3, pull rod installation and adjustment assembly; 4, display pointer; 5, grip inner pull handle; 6, grip outer pull handle; 7, front shell; 8, rear shell;

[0051] 11, movable pull rod assembly; 12, fixed pull rod; 13, connector fixing pin;

[0052] 111, front movable pull rod; 112, rear movable pull rod; 113, connector fixing pin; 114, movable pull rod locking button; 115, button return spring; 116, movable pull rod locking pin;

[0053] 111a, limiting stop; 111b, telescopic area; 111c, front locking groove; 111d, rear locking groove; 111e, locking pin sliding groove; 111f, sliding rail;

[0054] 112a, telescopic groove; 112b, long circular through hole; 112c, sliding rail; 112d, circular through hole;

[0055] 12a, limiting stop; 12b, sliding groove; 12c, sliding block; 12d, internally threaded through hole;

[0056] 114a, locking pin mounting hole; 114b, spring mounting card;

[0057] 31, adjustment worm; 32, adjustment knob; 33, mounting fixed sliding rail; 34, mounting fixed rod; 35, support;

[0058] 31a, external thread; 31b, external thread (opposite to 31a);

[0059] 7a, slotted; 7b, scale line.

[0060] I, rectangular electrical connector plug; II, rectangular electrical connector socket; III, electronic equipment; IV, plug tail cable;

[0061] Ia, plug plugging structure hole; Ila, socket plugging structure hole. DETAILED DESCRIPTION

[0062] The application will be further described in detail below in combination with the drawings and specific embodiments:

[0063] The embodiment of the application discloses a high-density pin type rectangular electric connector special plug-in tool, which comprises a left plug-in pull rod assembly 1, a right plug-in pull rod assembly 2, a pull rod installation and adjustment assembly 3, a display pointer 4, a grip inner pull handle 5, a grip outer pull handle 6, a front shell 7 and a rear shell 8, and specifically refers to Figure 1 .

[0064] The grip inner pull handle 5 and the grip outer pull handle 6 form a grip movable structure, and the grip inner pull handle 5 can move backward relative to the grip outer pull handle 6 under the action of human hand force.

[0065] The left plug-in pull rod assembly 1 and the right plug-in pull rod assembly 2 are mirror image parts. The left and right plug-in pull rod assemblies each comprise a movable pull rod assembly 11, a fixed pull rod 12 and a connector fixing pin 13, and specifically refer to Figure 2 .

[0066] The pull rod installation and adjustment assembly 3 comprises an adjustment worm 31, an adjustment knob 32, an installation fixed slide rail 33, an installation fixed rod 34 and a support 35, and specifically refers to Figure 2 .

[0067] The movable pull rod assembly 11 comprises a front movable pull rod 111, a rear movable pull rod 112, a connector fixing pin 113, a movable pull rod locking button 114, a button reset spring 115 and a movable pull rod locking pin 116, and specifically refers to Figure 2 .

[0068] The connector fixing pin 13 and the connector fixing pin 113 are respectively slidably installed at the top of the fixed pull rod 12 and the front movable pull rod 111 and have an activity amount in the axial direction of each, can be inserted into the plug-in structure hole Ia and / or IIa of the rectangular electric connector, and can connect the fixed pull rod 12 and the front movable pull rod 111 with the plug I or the socket II of the rectangular electric connector. Meanwhile, the top end of the fixed pull rod 12 and the front movable pull rod 111 is respectively provided with a limiting baffle 12a and 111a, which are used for ensuring that the force direction of the fixed pull rod 12 and the front movable pull rod 111 to the electric connector is in the same straight line as the plug-in direction of the connector, and can ensure that the plug and the socket are always in the centering and aligning state in the plug-in process, thereby avoiding damage to the electric connector. Specifically, the limiting baffles 12a and 111a respectively contact two opposite abutting sides of the plug I and / or the socket II of the rectangular electric connector, the abutting sides are the upper or lower surfaces of the plug I and / or the socket II which are parallel to the plug-in direction of the plug I and parallel to the axial direction of the plug-in structure hole Ia and / or IIa of the plug I or the socket II, and specifically refer to Figure 3 、 Figure 4 .

[0069] The front movable pull rod 111 is provided with an expansion area 111b at the rear part, as shown in Figure 5 ; and the rear movable pull rod 112 is provided with an expansion groove 112a at the front part, as shown inFigure 6 The telescopic area 111b of the front movable pull rod 111 can be inserted into the telescopic slot 112a of the rear movable pull rod 112, so that the pull rod can realize the telescopic function in the length direction. The telescopic area 111b of the front movable pull rod 111 is provided with a front locking slot 111c, a rear locking slot 111d and a locking pin sliding slot 111e. The front locking slot 111c is located at the end of the locking pin sliding slot 111e away from the grip inner pull handle 5, and the rear locking slot 111d is located at the end of the locking pin sliding slot 111e close to the grip inner pull handle 5. The telescopic slot 112a of the rear movable pull rod 112 is provided with a locking long circular hole 112b at the front part, and the movable pull rod locking button 114 is provided with a locking pin mounting hole 114a at the lower part. See Figure 7 The movable pull rod locking pin 116 passes through the locking pin mounting hole 114a and the long circular hole 112b to assemble the front movable pull rod 111 and the rear movable pull rod 112 into a linear pull telescopic structure, i.e. the movable pull rod assembly 11. See Figure 8 、 Figure 9 、 Figure 10 .

[0070] The bottom of the front movable pull rod 111 and the rear movable pull rod 112 is respectively provided with a protruding sliding rail 111f and 112c. See Figure 5 、 Figure 6 The bottom of the fixed pull rod 12 is provided with a sliding groove 12b which can cooperate with the above-mentioned sliding rail. See Figure 11 The sliding rail 111f and 112c is inserted into the sliding groove 12b to assemble the movable pull rod 11 and the fixed pull rod 12 into a linear sliding structure, i.e. the plug-in pull rod assembly 1 and 2.

[0071] The movable pull rod assembly 11 is assembled with the grip inner pull handle 5 through the installation of the fixed rod 34, and the movable pull rod assembly 11 is in sliding connection with the installation fixed rod 34. See Figure 12 The bottom of the fixed pull rod 12 is provided with a sliding block 12c (see Figure 11 The fixed pull rod 12 is assembled with the grip outer pull handle 6 through the installation of the fixed sliding rail 33. See Figure 13 When the grip inner pull handle 5 moves relative to the grip outer pull handle 6 under the action of the palm grip of the operator, it drives the movable pull rod assembly 11 to move relative to the fixed pull rod 12 in the linear direction, and finally drives the relative movement between the rectangular electric connector plug and the socket, so as to realize the plugging or disassembly between the plug and the socket. See Figure 17 、 Figure 18 .

[0072] The support 35 and the mounting fixed slide rail 33 are fixedly connected with the grip outer pull handle 6, the adjusting worm 31 passes through the support 35 and is rotationally connected with the support 35, and meanwhile the adjusting worm 31 passes through the fixed pull rod 12 and is threadedly connected with the fixed pull rod 12; the adjusting worm 31 is symmetrically provided with one left screw thread and one right screw thread (31a, 31b, see Figure 14 ) respectively; the middle part of the fixed pull rod 12 is provided with an inner thread through hole 12d (see Figure 11 ) matched with the outer screw threads 31a and 31b respectively; the fixed pull rod 12 is assembled on the adjusting worm 31 through the inner and outer thread cooperation, and the adjusting knobs 32 are mounted at both ends of the adjusting worm 31, forming a worm adjusting mechanism, see Figure 14 . The adjusting knobs 32 can drive the adjusting worm 31 to rotate in or out between the inner and outer screw threads around the axis of the adjusting worm 31, so that the position of the fixed pull rod 12 can be symmetrically adjusted left and right, and the distance between the left plug-in pull rod assembly 1 and the right plug-in pull rod assembly 2 is changed, so as to adapt to the operation of rectangular electric connectors of different specifications and different widths, see Figure 16 .

[0073] The middle part of the front shell 7 is provided with two symmetrically arranged grooves 7a, and the surfaces of the grooves on the upper and lower sides are sprayed with scale lines 7b corresponding to the specifications or sizes of the rectangular electric connectors; the display pointer 4 passes through the middle groove of the front shell 7 and is mounted on the fixed pull rod 12 to form a pointer display system together, when the fixed pull rod 12 moves left and right under the driving of the adjusting knobs 32, the display pointer 4 can correspondingly indicate the connector specification or size value corresponding to the distance between the left plug-in pull rod assembly 1 and the right plug-in pull rod assembly 2, see Figure 15 .

[0074] The use of the high-density rectangular electric connector special plug-in tool is shown in Figure 16 , Figure 17 , Figure 18 , and the specific operation method of clamping width adjustment, electric connector disassembly and electric connector plugging using the plug-in tool 0 of the present application is introduced by taking a real rectangular electric connector as an example, which is composed of a plug I and a socket II, is installed on an electronic device III, and a plug tail cable IV is shown schematically.

[0075] When using the tool, first adjust the tool according to the size or specification of the electrical connector, so that the clamping width of the tool is equal to the width of the electrical connector. The clamping width adjustment process of the tool is as follows: place the tool with the front face upward, so that the scale on the surface of the shell is visible, rotate any one of the two adjustment knobs 32, drive the left and right plug-in pull rod assemblies 1 and 2 to move towards each other or move away from each other, and at the same time, the display pointer 4 indicates the specific size of the current clamping width and the corresponding connector specification. When the display pointer 4 points to the required size value or connector specification, stop rotating the adjustment knob 32, at this time, the clamping width of the tool is just matched with the rectangular electrical connector, and the subsequent electrical connector plugging or disassembling operation can be performed.

[0076] The embodiment process of using the tool to disassemble the electrical connector is as follows:

[0077] ① Press the movable pull rod locking button 114, drive the movable pull rod locking pin 116 to fall into the locking pin sliding groove 111e of the front movable pull rod 111, push the front movable pull rod 111 inward, so that the telescopic area 111b of the front movable pull rod 111 is telescoped into the telescopic groove 112a of the rear movable pull rod 112, see Figure 9 ;

[0078] ② After pushing the front movable pull rod 111 to the position, release the movable pull rod locking button 114, drive the movable pull rod locking pin 116 to enter the front locking groove 111a of the telescopic area of the front movable pull rod 111 under the action of the button return spring 115, lock the length of the movable pull rod 11, and the movable pull rod 11 is in the shortened state, see Figure 10 ; the same operation is adopted for the mirror image plug-in pull rod assemblies on both sides, so that the tool is in the electrical connector disassembling working mode;

[0079] ③ Pull outward the four connector fixing pins at the top ends of the left and right plug-in pull rod assemblies, so that the inner end surface is not protruded from the inner surface of the pull rod assembly, see Figure 3 ;

[0080] ④ Align the tool with the electrical connector, and insert to the bottom; press inward the four connector fixing pins at the top ends of the left and right plug-in pull rod assemblies, so that the connector fixing pins are inserted into the plug-in structure of the rectangular electrical connector, integrate the fixed pull rod 12 with the socket of the rectangular electrical connector, and integrate the movable pull rod assembly 11 with the plug of the rectangular electrical connector, see the upper figure in Figure 17 ;

[0081] ⑤ The operator applies a gripping force to the inner and outer gripping handles, so that the gripping inner handle 5 moves backward relative to the gripping outer handle 6, drives the movable pull rod assembly 11 to pull backward, and finally drives the plug to move outward and separate from the socket, realizes the disassembly of the electrical connector, see the lower figure in Figure 17 .

[0082] The embodiment process of using the tool to plug the electrical connector is as follows:

[0083] ①Press the movable pull rod locking button 114 to drive the movable pull rod locking pin 116 to fall into the locking pin sliding groove 111e in the telescopic area of the front movable pull rod 111, and pull the front movable pull rod 111 outward to make the telescopic area of the front movable pull rod 111 pull out of the telescopic groove of the rear movable pull rod 112, as shown in Figure 9 ;

[0084] ②After pulling the front movable pull rod 111 to the position, release the movable pull rod locking button 114, and drive the movable pull rod locking pin 116 to enter the rear locking groove 111b in the telescopic area of the front movable pull rod 111 under the action of the button return spring 115, so that the length of the movable pull rod 11 is locked and is in the elongated state, as shown in Figure 8 ; the same operation is adopted for the mirror image plug-in pull rod assemblies on both sides, so that the tool is in the electrical connector plugging mode;

[0085] ③Pull the four connector fixing pins at the top ends of the left and right plug-in pull rod assemblies outward to make the inner end face not protrude from the inner surface of the pull rod assembly, as shown in Figure 3 ;

[0086] ④Place the electrical connector plug between the corresponding positions between the left and right fixed pull rod assemblies 12; press the two connector fixing pins 13 at the top ends of the left and right movable pull rod assemblies 11 inward to make the fixed pull rod 12 and the plug of the rectangular electrical connector integrated, as shown in the upper drawing in Figure 18 ;

[0087] ⑤Align the tool with the electrical connector, insert to the bottom, press the two connector fixing pins 113 at the top ends of the left and right movable pull rod assemblies 11 inward, make the connector fixing pins inserted into the plug-in structure of the rectangular electrical connector, and make the movable pull rod assembly 11 and the socket of the rectangular electrical connector integrated, as shown in the upper drawing in Figure 18 ;

[0088] ⑥The operator applies a gripping force to the inward and outward gripping handles to make the gripping outer handle 6 move forward relative to the gripping inner handle 5, drive the movable pull rod assembly 11 to advance forward, and finally push the plug inward into the socket and install to the position, realize the plugging of the electrical connector, as shown in the lower drawing in Figure 18 .

[0089] Although the present application is disclosed with the above preferred embodiments, it is not intended to limit the present application, and any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present application, therefore, the protection scope of the present application should be subject to the scope defined by the claims of the present application.

Claims

1. A special insertion and removal tool for high-density pin-type rectangular electrical connectors, characterized in that: Includes a left plug-in pull rod assembly (1), a right plug-in pull rod assembly (2), a pull rod mounting and adjustment assembly (3), a display pointer (4), a grip-type inner handle (5), a grip-type outer handle (6), a front shell (7), and a rear shell (8); The left plug-in pull rod assembly (1) and the right plug-in pull rod assembly (2) are mirror images of each other, and both include a movable pull rod assembly (11) and a fixed pull rod (12). The movable pull rod assembly (11) is adjustable along its own length. The inner grip handle (5) and the outer grip handle (6) are slidably connected and can slide relative to each other under the gripping force of a person's hand. The movable pull rod assembly (11) is connected to the inner grip handle (5), and the fixed pull rod (12) is connected to the outer grip handle (6) through the pull rod mounting and adjustment assembly (3). The two can move with the relative sliding of the inner grip handle (5) and the outer grip handle (6). The tie rod installation and adjustment assembly (3) includes an adjusting worm (31), a mounting and fixing slide rail (33), a mounting and fixing rod (34), and a support (35). The support (35) and the mounting and fixing slide rail (33) are fixedly connected to the grip-type external handle (6). The adjusting worm (31) passes through the support (35) and is rotatably connected to the support (35). The adjusting worm (31) passes through the fixed tie rod (12) and is threadedly connected to the fixed tie rod (12). The external threads (31a) and (31b) at the connection positions of the adjusting worm (31) and the two fixed tie rods (12) are reverse threads. The end slider (12c) of the fixed tie rod (12) is slidably connected to the mounting and fixing slide rail (33). The axial direction of the adjusting worm (31) and the sliding direction of the fixed tie rod (12) both pass through the straight line where the center of the threaded through hole (12d) of the two fixed tie rods (12) is located, and are perpendicular to the two fixed tie rods (12). Both the movable pull rod assembly (11) and the fixed pull rod (12) are provided with snap-fit ​​components at their ends for connecting the plug (I) and / or socket (II) of the rectangular electrical connector; The front shell (7), the rear shell (8), and the grip-type external handle (6) are fixedly connected to form a display panel with the display pointer (4).

2. The high-density pin-type rectangular electrical connector insertion and removal tool according to claim 1, characterized in that: The movable lever assembly (11) includes a front movable lever (111), a rear movable lever (112), and a locking assembly; the front movable lever (111) and the rear movable lever (112) are slidably connected along the length direction of the front movable lever (111), and the locking assembly is used to lock the front movable lever (111) and the rear movable lever (112) at different sliding positions.

3. The high-density pin-type rectangular electrical connector insertion and removal tool according to claim 2, characterized in that: The locking assembly includes a locking hole, a movable lever locking button (114), a button reset spring (115), and a movable lever locking pin (116). A telescopic groove (112a) is provided at the front of the rear movable lever (112), and one end of the front movable lever (111) slides within the telescopic groove (112a). The locking hole is located in the front movable lever (111), and the locking groove includes a front locking groove (111c), a rear locking groove (111d), and a locking pin sliding groove (111e). The movable lever locking pin (116) passes through the rear movable lever (112). The movable lever locking button (114) is connected to both ends of the movable lever locking pin (116) and located on one side of the telescopic groove (112a). The button reset spring (115) is connected to the spring mounting clip (114b) of the movable lever locking button (114) and is located between the movable lever locking button (114) and the rear movable lever (112). The front locking groove (111c) and the rear locking groove (111d) extend from both ends of the locking pin sliding groove (111e) toward the button reset spring (115).

4. The special insertion and removal tool for high-density pin-type rectangular electrical connectors according to claim 1, characterized in that: The pull rod installation and adjustment assembly (3) is used to adjust the distance between the two fixed pull rods (12). The left plug-in pull rod assembly (1) includes a movable pull rod assembly (11) and a fixed pull rod (12) connected by a limiting assembly. The right plug-in pull rod assembly (2) includes a movable pull rod assembly (11) and a fixed pull rod (12) connected by a limiting assembly.

5. The special insertion and removal tool for high-density pin-type rectangular electrical connectors according to claim 4, characterized in that: The limiting component includes a slide rail and a slide groove (12b). The movable pull rod assembly (11) is provided with a slide rail along its own length on the side facing the fixed pull rod (12). The fixed pull rod (12) has a slide groove (12b) that cooperates with the slide rail.

6. The special insertion and removal tool for high-density pin-type rectangular electrical connectors according to claim 1, characterized in that: The inner grip handle (5) is connected to a mounting rod (34) at one end away from the outer grip handle (6). The movable pull rod assembly (11) is slidably connected to the movable pull rod assembly (11) along the axis of the adjusting worm gear (31) through the end through hole (112d).

7. The special insertion and removal tool for high-density pin-type rectangular electrical connectors according to claim 1, characterized in that: The outer casing has a slot (7a) and a scale line (7b). A fixed pull rod (12) is fixedly connected to a display pointer (4), which passes through the slot (7a).

8. The special insertion and removal tool for high-density pin-type rectangular electrical connectors according to claim 1, characterized in that: The snap-fit ​​assembly includes a first connector fixing pin (13) slidably mounted on the end of the fixed pull rod (12) and a second connector fixing pin (113) slidably mounted on the end of the front movable pull rod (111). The axes of the first connector fixing pin (13) and the second connector fixing pin (113) are perpendicular to the fixed pull rod (12) and the front movable pull rod (111), and have a range of motion in their respective axial directions.

9. A special insertion and removal tool for high-density pin-type rectangular electrical connectors according to claim 1, characterized in that: The top ends of the fixed pull rod (12) and the front movable pull rod (111) are respectively provided with a first limiting baffle (12a) and a second limiting baffle (111a). The first limiting baffle (12a) and the second limiting baffle (111a) respectively contact the two abutting sides of the plug (I) and / or socket (II) of the rectangular electrical connector. The abutting sides are the upper or lower surfaces of the plug (I) and / or socket (II) that are parallel to the plug (I) insertion and removal direction and parallel to the axial direction of the insertion and removal structure hole (Ia) and (IIa) of the plug (I) or socket (II).

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