Differential lock socket assembling and pulling tool

Abstract

The invention discloses a differential lock socket assembling and pulling tool which comprises a first clamp body and a second clamp body. The first clamping assembly is arranged at the front end of the first clamp body, and the second clamping assembly is arranged at the front end of the second clamp body; wherein the first clamping assembly comprises a first outer sliding block and a first inner clamping block, and the second clamping assembly comprises a second outer sliding block and a second inner clamping block; the opposite inner side faces of the first inner clamping block and the second inner clamping block are profiling faces used for clamping the plug, and avoiding grooves for avoiding protrusions on the side faces of the plug are formed in the profiling faces. The first outer sliding block and the first inner clamping block as well as the second outer sliding block and the second inner clamping block are in sliding connection through conical surfaces which are matched with each other respectively; by means of the mode, on the premise that a plastic lug on the side face of the differential lock connecting and inserting opening is not damaged, installing and pulling operation of the connecting and inserting opening can be safely and efficiently completed, and the device is suitable for being repeatedly used in a production line.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile drive axle technology, in particular to a differential lock connector plugging and unplugging tool. BACKGROUND

[0002] In the field of automobile drive axle, differential lock is a key component to realize high passability of vehicle. When vehicle is trapped in muddy or icy road, differential lock can lock differential to force left and right wheels to rotate synchronously, so as to effectively transmit power to wheels with adhesion and help vehicle to get out of trouble. The electric control actuator of differential lock is connected with wire harness through a connector (or connector), which is usually assembled on the axle housing with complex structure.

[0003] Due to the limitation of internal space and assembly process of axle housing, the connector needs to be disassembled or assembled from the outside of axle housing during maintenance or production. In order to ensure the sealing, the connector is usually provided with an O-shaped sealing ring, which causes a large static friction between the connector and the axle housing, and a high pulling force is required. More troublesome is that the exposed part (head) of the connector is small in size, and a plastic tab (projection) is usually arranged on the side surface of the connector for locking or anti-rotation with the matching socket. The traditional general pulling tool (such as caliper and puller) cannot effectively and non-destructively operate: if the tool directly clamps the exposed cylindrical surface of the connector, the plastic tab is easily squeezed, scratched or even crushed due to improper force point or excessive clamping force. Once the tab is damaged, the entire expensive differential lock assembly needs to be replaced, which causes significant loss of time and economic cost.

[0004] In order to solve the problem, a simple pulling method appears in the prior art, that is, directly using the external connector matched with the connector as the force point for pulling. However, this scheme has a fundamental defect: the matched connector is not designed to bear the pulling force, and the plastic locking structure inside the connector is very fragile, which can only bear several pulling operations in actual operation and has very low reliability, which cannot meet the repeated and efficient operation requirements of production line. SUMMARY

[0005] The technical problem solved by the present application is to provide a differential lock connector plugging and unplugging tool, which can safely and efficiently complete the plugging and unplugging operation of the connector without damaging the plastic tab on the side surface of the differential lock connector, and is suitable for repeated use in production line.

[0006] To solve the above technical problems, the present application adopts one technical scheme: provide a differential lock connector plugging tool, comprising: a first jaw body and a second jaw body, the first jaw body and the second jaw body are rotationally connected; a first clamping assembly arranged at the front end of the first jaw body, and a second clamping assembly arranged at the front end of the second jaw body; and a driving assembly for synchronously driving the first clamping assembly and the second clamping assembly; wherein the first clamping assembly comprises a first outer sliding block and a first inner clamping block, and the second clamping assembly comprises a second outer sliding block and a second inner clamping block; the inner side surface of the first inner clamping block and the second inner clamping block opposite to each other is a profiled surface for clamping the connector, and the profiled surface is provided with a relief groove for avoiding the protrusion of the side surface of the connector; the driving assembly connects the first outer sliding block and the second outer sliding block, and is used for driving the first outer sliding block and the second outer sliding block to move synchronously; the first outer sliding block and the first inner clamping block, and the second outer sliding block and the second inner clamping block are connected through the mutually matched tapered surfaces to slide, so that when the first outer sliding block and the second outer sliding block move axially, the corresponding first inner clamping block and second inner clamping block are first driven to move radially to clamp the connector, and after clamping, the clamped connector is driven to move axially synchronously.

[0007] Preferably, the tapered surface comprises an inner tapered surface arranged on the inner side surface of the first outer sliding block and the second outer sliding block, and an outer tapered surface arranged on the outer side surface of the first inner clamping block and the second inner clamping block; the inner tapered surfaces on the first outer sliding block and the second outer sliding block together form an inner tapered guide surface with a large upper end inner diameter and a small lower end inner diameter; the outer tapered surfaces on the first inner clamping block and the second inner clamping block together form an outer tapered guide surface with a large upper end outer diameter and a small lower end outer diameter; the inner tapered guide surface and the outer tapered guide surface are matched.

[0008] Preferably, the driving assembly comprises a lever, a pull rod and a pin shaft; the lever is pivotally arranged on the first jaw body or the second jaw body, and is connected with the pull rod; the pin shaft is arranged through the pull rod, and the two ends of the pin shaft are respectively inserted into the first outer sliding block and the second outer sliding block, and the first outer sliding block or the second outer sliding block is slidably matched with one end of the pin shaft.

[0009] Preferably, the first outer sliding block is connected with the first inner clamping block through a first bolt, and the second outer sliding block is connected with the second inner clamping block through a second bolt; the first outer sliding block and the second outer sliding block are both provided with a second long waist hole extending axially, and the first bolt and the second bolt are respectively threaded into the first inner clamping block and the second inner clamping block through the corresponding second long waist hole.

[0010] Preferably, the first jaw body and the second jaw body are both provided with an axially extending support hole groove, and the rod part of the first bolt and the second bolt passes through the corresponding support hole groove and is slidably matched with the support hole groove to support and guide the corresponding first outer sliding block and second outer sliding block.

[0011] Preferably, the profiled surface is an arc-shaped concave surface matched with the cylindrical surface of the connector.

[0012] Preferably, the avoiding slot is a strip-shaped through slot penetrating the inner side wall of the corresponding first inner clamping block and second inner clamping block.

[0013] The beneficial effects of the present application are: by taking the mounting part end surface of the first plier body and the second plier body as the reference to tightly contact the bridge shell, the absolute accuracy and stability of the force direction in operation are ensured, and the partial load or scratch caused by tool deviation is fundamentally avoided. The combination of the specially designed profiled surface on the first inner clamping block and the second inner clamping block and the strip-shaped through slot avoiding slot realizes the unification of protection and functionality: the profiled surface provides large-area contact perfectly matched with the plug-in connector cylindrical surface, greatly reduces the pressure, and prevents indentation or scratch; and the avoiding slot makes the fragile plastic stay of the plug-in connector side surface completely in a suspended state during the entire operation process, fundamentally eliminating the risk of breakage caused by clamping or extrusion, and preserving the expensive differential lock assembly.

[0014] In addition, through the unique taper surface matching design between the first outer sliding block, the second outer sliding block and the first inner clamping block and the second inner clamping block, the single axial pulling movement input by the tool to the driving assembly is automatically and continuously converted into a composite action of "first radial clamping, then axial synchronous lifting". This process is smooth and efficient, not only the clamping force is controllable and directly transmitted, but also the tool reliability is significantly improved without complex mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic diagram of the position relationship when the present application cooperates with the bridge shell; Figure 2 is a schematic diagram of the overall structure of the present application; Figure 3 is a schematic diagram of the structure of the first clamping assembly of the present application; Figure 4 is a schematic diagram of the structure of the second clamping assembly of the present application.

[0016] The marks of the components in the drawings are as follows: 1, first plier body; 11, first outer sliding block; 12, first inner clamping block; 13, first bolt; 2, second plier body; 21, second outer sliding block; 22, second inner clamping block; 23, second bolt; 3, pivot block; 41, lever; 42, pull rod; 43, pin shaft; 5, avoiding slot; 61, inner taper surface; 62, outer taper surface; 71, first long waist hole; 72, second long waist hole; 8, support hole groove; 9, bridge shell. DETAILED DESCRIPTION

[0017] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the specific embodiments of the present application will be described below in detail with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in many different ways from what is described herein, and should not be construed as being limited to the embodiments set forth herein, but should be understood to include all possible embodiments.

[0018] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application.

[0019] In addition, the terms "first", "second", "third" and the like are used only for descriptive purposes and should not be construed as indicating or implying relative importance or a specific number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0020] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0021] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0022] It is to be understood that when an element such as a layer, region or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. It will be understood that, when a term is used in this specification specifying the relative position of one part to another (for example, "upper", "lower", "right", "left", "vertical", "horizontal", "above", "below", "up", "down", "top", "bottom", "side", "end", or the like), the illustrated orientation is intended and such directional terms should not be interpreted as limitations.

[0023] In the formula, the physical quantities, if not marked separately, should be understood as the basic quantities of the International System of Units, or the derived quantities derived from the basic quantities by multiplication, division, differentiation or integration, etc.

[0024] Embodiment: Reference Figure 1 The differential lock connector plugging tool comprises a first jaw body 1 and a second jaw body 2, the first jaw body 1 and the second jaw body 2 are rotatably connected through a rotating shaft; the first jaw body 1 and the second jaw body 2 each comprise a mounting portion at the front end and a handle connected with the mounting portion, so that the operator can control the opening and closing of the mounting portion at the front end of the first jaw body 1 and the second jaw body 2 by holding the handle at the rear end; in use, the end face at the lower end of the mounting portion of the first jaw body 1 and the second jaw body 2 is tightly attached to the end face at the mounting plug connector of the axle housing 9, thereby providing a stable and reliable reference plane for the entire pulling process, which not only realizes the rapid positioning of the tool, but also ensures that the tool itself has stable support when the pulling force is applied, preventing deviation.

[0025] Reference Figures 1-4 A first clamping assembly is arranged on the mounting portion at the front end of the first jaw body 1, and a second clamping assembly is correspondingly arranged on the mounting portion at the front end of the second jaw body 2, and a driving assembly is arranged for synchronously driving the first clamping assembly and the second clamping assembly. The first clamping assembly comprises a first outer sliding block 11 and a first inner clamping block 12, and the second clamping assembly comprises a second outer sliding block 21 and a second inner clamping block 22. The first outer sliding block 11 is in slidable cooperation with the first inner clamping block 12, and the second outer sliding block 21 is in slidable cooperation with the second inner clamping block 22. The first outer sliding block 11 is in axial slidable cooperation with the mounting portion of the first jaw body 1, and the second outer sliding block 21 is in axial slidable cooperation with the mounting portion at the front end of the second jaw body 2.

[0026] Reference Figures 1-4, the inner side surface of the first inner clamping block 12 and the second inner clamping block 22 opposite to each other is a profiling surface for clamping the connector, the shape of the profiling surface matches the outer cylindrical surface profile of the connector to be pulled, and in the preferred embodiment, the profiling surface can be an arc-shaped inner concave surface matched with the cylindrical surface of the connector. The profiling surface is provided with a relief groove 5 for avoiding the connector side protrusion (i.e. the lug), the relief groove 5 is a strip-shaped through groove penetrating the inner side wall of the corresponding first inner clamping block 12 and the second inner clamping block 22, so as to completely avoid the connector side protrusion, when the first inner clamping block 12 and the second inner clamping block 22 are closed, the plastic lug of the connector side is just accommodated in the relief groove 5, so as to realize complete physical avoidance; Through the clamp type body structure, the operation mode is intuitive and ergonomic. The design of abutting the end surface of the first clamp body 1 and the second clamp body 2 to the port of the bridge shell 9 plays a double role of positioning and supporting, ensures the accuracy of the force direction, and avoids the partial load caused by the tool shaking. The profiling surface ensures the soft and stable surface contact between the tool and the cylindrical surface of the connector, greatly increases the contact area, and uniformly distributes the clamping pressure; and the specially designed relief groove 5 fundamentally eliminates any contact and stress between the tool and the fragile plastic lug of the connector, so as to realize effective clamping while completely solving the fundamental problem of easily damaging the plastic lug in the prior art, and protecting the valuable parts.

[0027] Reference Figures 1-4, the driving assembly is connected with the first outer sliding block 11 and the second outer sliding block 21, which provides power and ensures that the first outer sliding block 11 and the second outer sliding block 21 can strictly synchronously move axially; the core of realizing the clamping and lifting composite action lies in the mutual matching conical surface sliding connection between the first outer sliding block 11 and the first inner clamping block 12 and between the second outer sliding block 21 and the second inner clamping block 22, so that when the first outer sliding block 11 and the second outer sliding block 21 move axially, the corresponding first inner clamping block 12 and second inner clamping block 22 are first driven to move radially to clamp the connector, and after clamping, the clamped connector is synchronously moved axially. Specifically, the conical surface includes an inner conical surface 61 opened on the inner side surface of the first outer sliding block 11 and the second outer sliding block 21, and an outer conical surface 62 opened on the outer side surface of the first inner clamping block 12 and the second inner clamping block 22. When the first outer sliding block 11 and the second outer sliding block 21 are closed, the inner conical surfaces 61 on the first outer sliding block 11 and the second outer sliding block 21 together form an inner conical guide surface with a large upper end inner diameter and a small lower end inner diameter. Similarly, when the first inner clamping block 12 and the second inner clamping block 22 are closed, the outer conical surfaces 62 on the first inner clamping block 12 and the second inner clamping block 22 together form an outer conical guide surface with a large upper end outer diameter and a small lower end outer diameter. The inner conical guide surface cooperates with the outer conical guide surface, and the minimum inner diameter of the inner conical guide surface is smaller than the maximum outer diameter of the outer conical guide surface. This size relationship ensures that they can be tightly fitted, so that the first inner clamping block 12 and the second inner clamping block 22 are constrained in the radial direction while being able to slide axially along the conical surface, and will not fall off from the corresponding first outer sliding block 11 and second outer sliding block 21; The working principle is: when the driving assembly acts, pulls the first outer sliding block 11 and the second outer sliding block 21 to move axially upward (i.e. towards the direction away from the bridge housing 9), due to the narrower space of the lower end of the inner conical guide surface, the outer conical guide surface will be radially extruded during upward sliding. This extrusion is converted into a force driving the first inner clamping block 12 and the second inner clamping block 22 to move towards each other (i.e. radially), so that they gradually close and tightly clamp the cylindrical surface of the plug connector through the profiling surface. In the initial stage of clamping, the plastic tabs are not extruded due to the existence of the avoiding groove 5. When the friction between the first inner clamping block 12 and the second inner clamping block 22 and the plug connector reaches the maximum and cannot be further tightened radially (i.e. fully clamped), the relative sliding between the conical surfaces temporarily stops. At this time, the first outer sliding block 11 and the second outer sliding block 21 continue to move axially upward, which will drive the first inner clamping block 12 and the second inner clamping block 22 and the plug connector that have been clamped as a whole to move synchronously upward through the huge static friction between the conical surfaces, until the plug connector is completely pulled out; The conical surface matching structure ingeniously decomposes and converts the input motion in a single direction (axial direction) into two orderly stages of action. In the first stage, the axial displacement is efficiently converted into radial clamping force by the slope effect of the taper, realizing reliable gripping of the plug connector. In the second stage, after clamping is completed, the self-locking and friction of the conical surface matching automatically switches the motion mode to overall synchronous lifting. The whole process is smooth and natural, and the size of the clamping force is directly related to the driving input, which is good in controllability. Thus, the use of complex mechanisms is avoided, and the composite function is realized only by simple conical surface matching, making the tool structure compact, reliable and durable.

[0028] Reference Figures 1-4 A specific preferred embodiment of the driving assembly includes a lever 41, a pull rod 42, and a pin shaft 43. The lever 41 is pivotally mounted on the first jaw body 1 or the second jaw body 2, and can be mounted with a pivot block 3 on the first jaw body 1 or the second jaw body 2, so that the lever 41 forms a force-saving lever 41 by being rotatably mounted on the handle of the first jaw body 1 or the second jaw body 2 at the front part. One end (power output end) of the lever 41 is connected with the upper end of the pull rod 42. The pin shaft 43 is transversely arranged in the lower end of the pull rod 42, and the hole at one end of the pin shaft 43 is a first long waist hole 71, so as to realize the sliding fit with the pin shaft 43, thereby avoiding the influence of the pin shaft 43 on the opening and closing of the first jaw body 1 or the second jaw body 2. Since the downward action of the end of the lever 41 is converted into complex motion (not pure vertical motion) of the pull rod 42 during operation, and the first outer sliding block 11 and the second outer sliding block 21 move strictly along the axial direction under the guidance of the first jaw body 1 and the second jaw body 2, the connection between the pin shaft 43 and the first outer sliding block 11 and the second outer sliding block 21 needs a certain degree of freedom of motion to compensate. The first long waist hole 71 provides the necessary activity margin for the pin shaft 43, effectively absorbing the motion interference that may be caused by the swing of the lever 41 and the assembly tolerance of the parts, and also facilitates the opening and closing of the first jaw body 1 or the second jaw body 2. In this way, when the operator presses down the end of the lever 41, the lever 41 can smoothly drive the pull rod 42 and the pin shaft 43 to move upward, and then smoothly and synchronously drive the first outer sliding block 11 and the second outer sliding block 21 to move upward along the axial direction through the pin shaft 43, avoiding the phenomenon of jamming and locking caused by too tight motion constraint, and ensuring the smoothness and reliability of the operation. The lever 41 provides labor-saving operation, making the pulling process more relaxed.

[0029] Reference Figures 1-4The first outer slider 11 is connected to the first inner clamping block 12 by a first bolt 13, and the second outer slider 21 is connected to the second inner clamping block 22 by a second bolt 23. To achieve the relative sliding required for the conical surface fit, both the first outer slider 11 and the second outer slider 21 have a second elongated hole 72 along the axial direction (i.e., the sliding direction). The shanks of the first bolt 13 and the second bolt 23 pass through the corresponding second elongated holes 72 in sequence, and are then screwed into the threaded holes of the first inner clamping block 12 and the second inner clamping block 22 for fixation. The first outer slider 11 and the second outer slider 21 can slide axially within a certain range relative to the first inner clamping block 12 and the second inner clamping block 22 along the length direction of the second elongated holes 72.

[0030] refer to Figures 1-4 To provide stable guidance for the first and second clamping assemblies and prevent them from detaching from the first clamping body 1 and the second clamping body 2, axially extending support slots 8 are correspondingly machined on the mounting portions at the front ends of the first clamping body 1 and the second clamping body 2. The shanks of the aforementioned first bolt 13 and second bolt 23 pass through the second elongated slots 72 of the first outer slider 11 and the second outer slider 21, and also pass through the corresponding support slots 8 on the first clamping body 1 and the second clamping body 2. Thus, the first bolt 13 and the second bolt 23 not only serve to connect the first outer slider 11, the first inner clamping block 12, the second outer slider 21, and the second inner clamping block 22, but their shanks also act as "guide posts," forming, together with the support slots 8 on the first clamping body 1 and the second clamping body 2, the axial sliding guide rails of the first clamping assembly and the second clamping assembly. It ensures that the first outer slider 11 and the first inner clamping block 12 can be strictly translated along the axial direction of the first clamp body 1, and the same applies to the second outer slider 21 and the second inner clamping block 22. At the same time, it effectively prevents the first outer slider 11, the first inner clamping block 12, the second outer slider 21, and the second inner clamping block 22 from dislodging from the first clamp body 1 and the second clamp body 2 in motion or non-use state, thereby enhancing the overall rigidity and operational safety of the tool. The engagement of the second elongated hole 72 with the first bolt 13 and the second bolt 23 provides the structural guarantee for achieving the "radial clamping followed by axial linkage" function of the conical surface: In the initial upward movement of the first outer slider 11 and the second outer slider 21, the first bolt 13 and the second bolt 23 can move within the second elongated hole 72, allowing the first outer slider 11 and the second outer slider 21 to slide upward independently for a certain distance. At this time, the conical surface plays a role in driving the first inner clamping block 12 and the second inner clamping block 22 to tighten radially. When the first inner clamping block 12 and the second inner clamping block 22 are tightly inserted into the joint, the first bolt 13 and the second bolt 23 abut against the end of the second elongated hole 72, allowing power to be directly transmitted, thereby driving the entire first clamping assembly and the second clamping assembly to move upward synchronously. The precise engagement of the rods of the first bolt 13 and the second bolt 23 with the support slots 8 on the first clamp body 1 and the second clamp body 2 achieves reliable axial guidance and support. This design achieves three key technical benefits: First, it provides a precise linear motion track for the first and second clamping components, ensuring they move strictly along the axial direction without jamming or swaying. Second, it absorbs the radial and torsional loads generated during operation, effectively distributing them to the robust first clamping body 1 and second clamping body 2, ensuring the overall stability of the structure. Third, it acts as an anti-detachment barrier, preventing the first and second clamping components from disengaging from the first clamping body 1 and second clamping body 2 when not in use or under unexpected lateral forces, greatly enhancing the tool's operational safety and durability. These detailed design features collectively ensure the tool's precise and reliable operation under high-frequency, high-load use.

[0031] Work process: In the initial state, the operator holds the handles of the first clamp body 1 and the second clamp body 2 and opens them. At this time, the first outer slider 11 and the first inner clamping block 12 in the first clamping assembly at the front end of the first clamp body 1, and the second outer slider 21 and the second inner clamping block 22 in the second clamping assembly at the front end of the second clamp body 2, are all in a separated open state. The distance between the first inner clamping block 12 and the second inner clamping block 22 is greater than the diameter of the connector to be inserted or removed.

[0032] At the start of operation, the operator moves the tool to the insertion hole of the bridge housing 9, ensuring that the lower end faces of the mounting portions of the first clamping body 1 and the second clamping body 2 are stably pressed against the end face of the bridge housing 9 around the insertion hole. This action completes the quick positioning and stable support of the tool. Next, while keeping the tool end faces pressed against the bridge housing 9, the operator opens the opening formed by the first inner clamping block 12 and the second inner clamping block 22, aligning it with the head of the insertion connector that has been slightly extended from inside the bridge housing 9, ensuring that the plastic tabs on the side of the insertion connector are roughly aligned with the clearance grooves 5 on the first inner clamping block 12 and the second inner clamping block 22. Subsequently, the operator grips the handles of the first clamping body 1 and the second clamping body 2, closing the mounting portions at their front ends. During this process, the first inner clamping block 12 and the second inner clamping block 22 move closer together, and the strip-shaped through groove 5 on them completely accommodates the plastic pad on the side of the connector. Meanwhile, the arc-shaped concave contoured surfaces of the first inner clamping block 12 and the second inner clamping block 22 gently fit against the cylindrical outer wall of the connector, completing the initial alignment and containment.

[0033] Next, the operator holds the handles of the first clamp 1 and the second clamp 2 firmly with one hand, and presses down on the lever 41 in the drive assembly with the other hand. The lever 41 rotates about its pivot point with the first clamp 1 or the second clamp 2, and its power output end drives the pull rod 42 to move upward. The pull rod 42 then drives the pin 43, which passes laterally through it, to move upward synchronously. Since the two ends of the pin 43 are respectively inserted into the holes on the first outer slider 11 and the second outer slider 21, the upward movement of the pin 43 will smoothly drive the first outer slider 11 and the second outer slider 21 to move upward synchronously along the axial track defined by the support hole groove 8 on the mounting part of the first clamp 1 and the second clamp 2.

[0034] In the initial stage when the first outer slider 11 and the second outer slider 21 begin to move upward, the second elongated holes 72 on the first and second outer sliders 11 and 21 provide travel space, allowing the first bolt 13 connecting the first outer slider 11 to the first inner clamping block 12 and the second bolt 23 connecting the second outer slider 21 to the second inner clamping block 22 to move relative to each other within the corresponding elongated holes 72. This allows the first outer slider 11 and the second outer slider 21 to slide upward a short distance independently of the first inner clamping blocks 12 and 22. During this process, the inner conical guide surfaces of the first outer slider 11 and the second outer slider 21, with a larger upper inner diameter and a smaller lower inner diameter, slide relative to the outer conical guide surfaces of the first inner clamping blocks 12 and the second inner clamping blocks 22, with a larger upper outer diameter and a smaller lower outer diameter. Due to the inclined plane effect of the conical surface fit, the axial upward movement of the first outer slider 11 and the second outer slider 21 is converted into a radially inward squeezing force on the first inner clamping block 12 and the second inner clamping block 22, thereby driving the first inner clamping block 12 and the second inner clamping block 22 to move towards each other in the radial direction, clamping the cylindrical wall of the connector tightly through their contoured surfaces. At this time, the plastic contacts on the side of the connector are always safely within the relief groove 5, and are not subject to any squeezing.

[0035] When the first inner clamping block 12 and the second inner clamping block 22 are fully radially clamped around the connector and can no longer come closer, the radial clamping action is completed. At this time, the shanks of the first bolt 13 and the second bolt 23 have moved to the ends of the corresponding second elongated holes 72 and abut against them. The power transmission path provided by the drive assembly is changed from this point on. Continuing to press down the lever 41, the first outer slider 11 and the second outer slider 21 continue to move axially upward. Through the huge static friction between the tightly fitted inner and outer conical guide surfaces, which have stopped sliding relative to each other, and through the direct abutment of the first bolt 13, the second bolt 23, and the ends of the second elongated holes 72, the first inner clamping block 12 and the second inner clamping block 22, which are fixed to the connector, move axially upward as a whole in sync. This upward movement of the whole pulls the connector smoothly out of the connector hole of the bridge housing 9.

[0036] After the pull is completed, the operator releases the handles of the first clamp 1 and the second clamp 2. The first inner clamp 12 and the second inner clamp 22 release the connector under the action of the reset force or a slight external force. Then, the operator can lift the tool upward or remove the tool from above the pulled-out connector, thus completing the entire installation and removal operation.

[0037] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A differential lock connector installation and removal tool, characterized in that, include: The first clamp (1) and the second clamp (2) are rotatably connected; A first clamping assembly is provided at the front end of the first clamping body (1), and a second clamping assembly is provided at the front end of the second clamping body (2); And, a drive component for synchronously driving the first clamping component and the second clamping component; The first clamping assembly includes a first outer slider (11) and a first inner clamping block (12), and the second clamping assembly includes a second outer slider (21) and a second inner clamping block (22). The inner surfaces of the first inner clamping block (12) and the second inner clamping block (22) are contoured surfaces for clamping the connector, and the contoured surfaces are provided with relief grooves (5) to avoid the protrusions on the side of the connector. The driving component connects the first outer slider (11) and the second outer slider (21) and is used to drive the first outer slider (11) and the second outer slider (21) to move synchronously. The first outer slider (11) and the first inner clamping block (12), as well as the second outer slider (21) and the second inner clamping block (22), are respectively connected by mutually cooperating conical surfaces, so that when the first outer slider (11) and the second outer slider (21) move axially, the corresponding first inner clamping block (12) and the second inner clamping block (22) are first driven to move radially to clamp the connector, and after clamping, the clamped connector is driven to move axially synchronously.

2. The differential locking connector installation and removal tool according to claim 1, characterized in that: The conical surface includes an inner conical surface (61) formed on the inner sides of the first outer slider (11) and the second outer slider (21), and an outer conical surface (62) formed on the outer sides of the first inner clamping block (12) and the second inner clamping block (22); The inner conical surface (61) on the first outer slider (11) and the second outer slider (21) together form an inner conical guide surface with a large inner diameter at the upper end and a small inner diameter at the lower end; The outer conical surface (62) on the first inner clamping block (12) and the second inner clamping block (22) together form an outer conical guide surface with a large outer diameter at the upper end and a small outer diameter at the lower end; The inner conical guide surface mates with the outer conical guide surface.

3. The differential locking connector installation and removal tool according to claim 1, characterized in that: The drive assembly includes a lever (41), a pull rod (42), and a pin (43); The lever (41) is pivotally mounted on the first clamp (1) or the second clamp (2) and connected to the pull rod (42); The pin (43) passes through the pull rod (42) and the two ends of the pin (43) are respectively inserted into the first outer slider (11) and the second outer slider (21), and the first outer slider (11) or the second outer slider (21) slides in cooperation with one end of the pin (43).

4. The differential locking connector installation and removal tool according to claim 1, characterized in that: The first outer slider (11) is connected to the first inner clamping block (12) by the first bolt (13), and the second outer slider (21) is connected to the second inner clamping block (22) by the second bolt (23); The first outer slider (11) and the second outer slider (21) are each provided with an axially extending second elongated hole (72). The first bolt (13) and the second bolt (23) pass through the corresponding second elongated hole (72) and are threadedly connected to the first inner clamping block (12) and the second inner clamping block (22).

5. A differential locking connector installation and removal tool according to claim 4, characterized in that: The first clamp body (1) and the second clamp body (2) are provided with axially extending support holes (8). The shanks of the first bolt (13) and the second bolt (23) pass through the corresponding support holes (8) and slide with the support holes (8) to support and guide the corresponding first outer slider (11) and the second outer slider (21).

6. A differential locking connector installation and removal tool according to claim 1, characterized in that: The contoured surface is an arc-shaped concave surface that adapts to the pin surface of the connector.

7. A differential locking connector installation and removal tool according to claim 1, characterized in that: The clearance groove (5) is a strip-shaped through groove that penetrates the inner sidewall of the corresponding first inner clamping block (12) and second inner clamping block (22).

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