Terminal pulling-out device

Abstract

The utility model relates to the technical field of electrician and electronic tools, and discloses a terminal pull-out device, which comprises a shell, a plurality of terminal needles and an insertion rod, a plurality of accommodating grooves are arranged at the upper end of the shell at intervals, the outer wall of the rod body of the insertion rod is rotatably connected with the terminal needles, one side of the outer wall of the rod body of the insertion rod is provided with connecting threads, and the connecting threads are connected with the accommodating grooves. A limiting mechanism is arranged in the shell and comprises a reset spring, a moving plate and a plurality of avoiding grooves, a moving groove is formed in the front end in the shell, one side of the reset spring is fixedly connected with the moving plate, and a plurality of limiting blocks are fixedly connected to the upper end of the moving plate at intervals. Clamping grooves are formed in the upper end and the lower end of the terminal needle head; and the clamping grooves are connected with the limiting block in a clamping manner. According to the utility model, the reset spring in the limiting mechanism acts on the moving plate, so that the limiting block is in clamping connection with the clamping groove in the terminal needle head, and the terminal needle head can be stored in a unified manner and is convenient for a worker to carry and search.

Description

Technical Field

[0001] This utility model relates to the field of electrical and electronic tools, and in particular to a terminal pull-out device. Background Technology

[0002] Terminal pull-out devices are specialized tools widely used in electrical maintenance, electronic equipment assembly, and industrial control. They are mainly used to remove metal terminals from the plastic connector housing without damage, so as to facilitate the repair, replacement, or rewiring of wire harnesses.

[0003] However, since connectors from different manufacturers and models have different terminal shapes and sizes, staff need to carry different extraction tools. Currently, most of the terminal extraction devices on the market are single-unit designs, which are messy to carry and inconvenient to find, thus reducing work efficiency.

[0004] Therefore, those skilled in the art have provided a terminal removal device to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a terminal pull-out device. By using a reset spring in the limiting mechanism to act on the moving plate, the limiting block is engaged with the slot on the terminal pin, allowing the terminal pins to be stored uniformly, making it convenient for staff to carry and find.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A terminal pull-out device includes a housing, multiple terminal pins, and a plug rod. The upper end of the housing has multiple storage slots spaced apart. The outer wall of the plug rod is rotatably connected to the terminal pins. One side of the outer wall of the plug rod has a connecting thread. The housing contains a limiting mechanism, which includes a return spring, a moving plate, and multiple clearance slots. The front end of the housing has a moving slot. One side of the return spring is fixedly connected to the moving plate. Multiple limiting blocks are fixedly connected to the upper end of the moving plate at intervals. The upper and lower ends of the terminal pins each have locking slots that engage with the limiting blocks.

[0008] The above technical solution uses a reset spring to push the moving plate, which allows the limit block to engage with the slot, enabling the terminal pins to be stored uniformly for easy carrying and retrieval. Furthermore, the connecting thread connects the insert rod to the housing, making it convenient to remove the insert rod and replace different terminal pins.

[0009] Furthermore, all the terminal pins are located inside the receiving groove, and the front end of each terminal pin extends through the receiving groove to the outside of the housing;

[0010] The above technical solution allows the terminal pins to be folded and stored using the storage slot on the housing, reducing the overall length of the device. The terminal pins extend a short distance through the housing, making it convenient for operators to rotate them out of the storage slot.

[0011] Furthermore, one side of the insertion rod penetrates the housing and is threadedly connected to the housing via a connecting thread, while a knob is fixedly connected to the other side of the insertion rod;

[0012] The above technical solution allows workers to easily rotate the plug rod by using a knob fixedly connected to it. This enables the plug rod to be connected to or separated from the housing via the connecting threads on the plug rod, allowing it to be fixed to or pulled out of the housing.

[0013] Furthermore, a pair of protrusions are provided on the outer walls of both sides of the terminal needle, and the protrusions are engaged with the inner wall of the receiving groove.

[0014] The above technical solution increases the friction of the terminal pin in the storage groove by the cooperation between the protrusion and the inner wall of the storage groove. At the same time, it provides positioning when the terminal pin rotates to a horizontal state in the storage groove, which facilitates the engagement of the slot and the limiting block.

[0015] Furthermore, the inner wall of one side of the movable groove is fixedly connected to the reset spring, one side of the movable plate penetrates the housing and is fixedly connected to multiple pressing plates, and the upper edge of the limiting block is provided with chamfers;

[0016] Through the above technical solution, the pressing plate fixedly connected to the moving plate makes it convenient for the staff to push the moving plate to move the limiting block in the moving groove, and the chamfer set on the limiting block makes it easy to lock into the slot. The return spring inside the moving groove can apply the elastic force to the moving plate, so that the limiting block can maintain the locking state with the slot.

[0017] Furthermore, both the limiting block and the moving plate slide inside the moving groove, and the clearance groove is formed by the gap between the two limiting blocks;

[0018] The above technical solution provides sliding space for the limiting block and the moving plate through the moving groove, ensuring the straightness of the movement. At the same time, the movement of the moving plate can change the position of the limiting block, allowing the limiting block to release from the locking state of the slot, thereby making the clearance groove between the limiting blocks correspond to the slot, so that the terminal pin can rotate in the storage groove under the action of external force.

[0019] This utility model has the following beneficial effects:

[0020] 1. The present invention proposes a terminal pull-out device, which uses a reset spring in the limiting mechanism to act on the moving plate, so that the limiting block is engaged with the slot on the terminal pin, so that the terminal pin can be uniformly stored in the storage slot on the housing, thereby facilitating uniform carrying and easy retrieval by staff.

[0021] 2. The present invention proposes a terminal removal device, which uses a plug rod to be threadedly connected to the housing, so that after the plug rod is unscrewed, the terminal pin can be removed from the storage slot separately, making it convenient to replace different terminal pins. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main structure of a terminal pull-out device proposed in this utility model;

[0023] Figure 2 This is an exploded view of a terminal pull-out device proposed in this utility model;

[0024] Figure 3 This is a front sectional view of a terminal pull-out device proposed in this utility model;

[0025] Figure 4 This is a side sectional view of a terminal pull-out device proposed in this utility model;

[0026] Figure 5 for Figure 2 Enlarged view of point A in the middle;

[0027] Figure 6 for Figure 3 Enlarged view of point B in the middle.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Housing; 2. Storage slot; 3. Terminal pin; 4. Insert rod; 5. Connecting thread; 6. Knob; 7. Protrusion; 8. Restriction mechanism; 801. Moving slot; 802. Return spring; 803. Moving plate; 804. Limiting block; 805. Clearance slot; 806. Pressing plate; 807. Card slot. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Reference Figure 1-6This utility model provides a specific implementation method:

[0032] A terminal pull-out device includes a housing 1, a plurality of terminal pins 3 and a plug rod 4. The upper end of the housing 1 is provided with a plurality of storage slots 2 at intervals. The outer wall of the plug rod 4 is rotatably connected to the terminal pins 3. One side of the outer wall of the plug rod 4 is provided with a connecting thread 5. The housing 1 is provided with a limiting mechanism 8. The limiting mechanism 8 includes a return spring 802, a moving plate 803 and a plurality of clearance slots 805. The front end of the housing 1 is provided with a moving slot 801. One side of the return spring 802 is fixedly connected to the moving plate 803. The upper end of the moving plate 803 is fixedly connected with a plurality of limit blocks 804 at intervals. The upper and lower ends of the terminal pins 3 are provided with slots 807, and the slots 807 are engaged with the limit blocks 804.

[0033] The return spring 802 in the limiting mechanism 8 acts on the moving plate 803, causing the limiting block 804 to engage with the slot 807 on the terminal needle 3. This allows the terminal needles 3 to be uniformly stored in the storage slot 2 on the housing 1, making them easy to carry and convenient for staff to find. In addition, the insertion rod 4 is threaded to the housing 1 via the connecting thread 5, so that after the insertion rod 4 is unscrewed, the terminal needles 3 can be individually removed from the storage slot 2, making it convenient to replace different terminal needles 3.

[0034] All terminal pins 3 are located inside the storage slot 2, with the front end of each pin penetrating through the storage slot 2 to the outside of the housing 1. The storage slot 2 on the housing 1 allows the terminal pins 3 to be folded and stored, reducing the overall length of the device. A small portion of the terminal pin 3 extends out of the housing 1, facilitating rotation by the operator to remove it from the storage slot 2. One side of the insertion rod 4 penetrates the housing 1 and is threaded to it via a connecting thread 5. A knob 6 is fixedly connected to the other side of the insertion rod 4, allowing the operator to easily rotate the insertion rod. The rod 4 can be connected to or separated from the housing 1 via the connecting thread 5 on the rod 4, so that the rod 4 can be fixed to or pulled out of the housing 1. A pair of protrusions 7 are provided on the outer walls of both sides of the terminal needle 3. The protrusions 7 are engaged with the inner wall of the receiving groove 2. The engagement of the protrusions 7 with the inner wall of the receiving groove 2 increases the friction of the terminal needle 3 within the receiving groove 2, and provides positioning when the terminal needle 3 rotates to a horizontal position within the receiving groove 2, facilitating the engagement of the slot 807 with the limiting block 804. The inner wall of one side of the moving groove 801 is fixed to the return spring 802. The movable plate 803 is connected to a housing 1 on one side, with multiple pressing plates 806 fixedly connected thereto. The upper edge of the limiting block 804 is chamfered. The pressing plates 806 fixedly connected to the movable plate 803 allow the operator to push the movable plate 803, causing the limiting block 804 to move within the movable groove 801. The chamfered edges of the limiting block 804 facilitate engagement with the slot 807. The return spring 802 inside the movable groove 801 applies elastic force to the movable plate 803, ensuring the limiting block 804 remains engaged with the slot 807, thus limiting movement. Both block 804 and moving plate 803 slide inside moving groove 801. The clearance groove 805 is formed by the gap between two limiting blocks 804. The moving groove 801 provides sliding space for limiting blocks 804 and moving plate 803, ensuring the straightness of the movement. At the same time, the movement of moving plate 803 can change the position of limiting block 804, allowing limiting block 804 to release the locking state of slot 807, thereby making the clearance groove 805 between limiting blocks 804 correspond to slot 807, so that terminal needle 3 can rotate in storage groove 2 under the action of external force.

[0035] Working principle: When using this terminal removal device, the operator can use the knob 6 to rotate the insertion rod 4, which is pulled out from the housing 1 under the action of the connecting thread 5. Then, the operator can take out the terminal pin 3, replace it with the required model, and then insert the insertion rod 4 back in and fix it with the connecting thread 5. Then, the operator can use the pressing plate 806 to press the moving plate 803, which drives the limiting block 804 to release the locking state of the slot 807, so that the clearance groove 805 corresponds to the slot 807, allowing the terminal pin 3 to rotate in the storage groove 2. The operator rotates out the terminal pin 3 of the required type, and then releases the pressing plate 806. Under the action of the return spring 802, the moving plate 803 drives the limiting block 804 to return to the locking state of the slot 807, fixing the position of the terminal pin 3. At this time, the terminal pin 3 can be inserted into the connector opening to perform the terminal removal operation.

[0036] The following points should be noted in this article:

[0037] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0038] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A terminal puller device comprising a housing (1), a plurality of terminal pins (3) and a plunger (4), characterized in that: The upper end of the shell (1) is provided with a plurality of receiving grooves (2), the outer wall of the rod body of the plug rod (4) is rotationally connected with the terminal pin (3), one side of the outer wall of the rod body of the plug rod (4) is provided with a connecting thread (5), the inside of the shell (1) is provided with a limiting mechanism (8), the limiting mechanism (8) comprises a reset spring (802), a moving plate (803) and a plurality of avoiding grooves (805), the front end of the inside of the shell (1) is provided with a moving groove (801), one side of the reset spring (802) is fixedly connected with the moving plate (803), the upper end of the moving plate (803) is fixedly connected with a plurality of limiting blocks (804), the upper end and the lower end of the terminal pin (3) are both provided with clamping grooves (807), the clamping grooves (807) are both clampedly connected with the limiting blocks (804).

2. A terminal puller according to claim 1, wherein: The terminal pin (3) is located in the inside of the receiving groove (2), and the front end of the terminal pin (3) penetrates through the receiving groove (2) to the outside of the shell (1).

3. A terminal puller according to claim 1, wherein: One side of the plug rod (4) penetrates through the shell (1) and is threadedly connected with the shell (1) through the connecting thread (5), and the other side of the plug rod (4) is fixedly connected with a knob (6).

4. A terminal puller according to claim 1, wherein: The outer wall of the terminal pin (3) is provided with a pair of protrusions (7), and the protrusions (7) are clampedly connected with the inner wall of the receiving groove (2).

5. A terminal puller according to claim 1, wherein: The inner wall of one side of the moving groove (801) is fixedly connected with the reset spring (802), one side of the moving plate (803) penetrates through the shell (1) and is fixedly connected with a plurality of pressing plates (806), and the edges of the upper ends of the limiting blocks (804) are all provided with chamfers.

6. A terminal puller according to claim 1, wherein: The limiting blocks (804) and the moving plate (803) are both slidably arranged in the moving groove (801), and the avoiding grooves (805) are all formed by the gaps between the two limiting blocks (804).

Images