Telescopic self-locking multifunctional pliers

Abstract

The utility model relates to a telescopic self -locking multifunctional pincers, it includes two symmetrical settings' pincers head, the bottom of two pincers head all is fixedly installed with fixed link, the surface of two fixed links all is set with the adjusting sleeve, two fixed links both sides all are seted up with strip groove, and the lower end part between two strip grooves on same fixed link all are inserted with the limiting rod, and two limiting rods both ends are fixedly connected with two adjusting sleeves both sides inner wall, and the lower part of two fixed links inside all is equipped with the baffle, this multifunctional pincers can be telescopic self -locking fast, is convenient for using when operating in narrow space, and the space is small after shortening, is convenient for storage, improves the flexibility of whole.

Description

Technical Field

[0001] This utility model belongs to the field of multi-functional pliers technology, specifically a retractable self-locking multi-functional pliers. Background Technology

[0002] Multi-tool pliers are highly integrated portable tools that cleverly combine multiple practical functions into a compact structure, breaking through the limitations of traditional single tools. Designed to meet the needs of complex scenarios, they achieve function switching through innovative mechanical structures, covering operations such as cutting, clamping, twisting, prying, slicing, and opening bottles. They are suitable for diverse scenarios including daily maintenance, outdoor survival, emergency rescue, and vehicle safety. Some models also have special functions, such as window breaking for escape and rope cutting for self-rescue, making them key equipment for dealing with emergencies. Their advantages lie in their lightweight and portability; the weight is usually kept within a reasonable range, and the ergonomic design optimizes the grip experience, while a safety locking mechanism ensures safe operation. The modular design concept makes their functions highly expandable; users can choose between a basic model or an upgraded version according to their needs, making them an ideal tool for improving efficiency and ensuring safety. Existing multi-functional pliers have a fixed length design, which limits their use when working in narrow spaces, takes up a lot of space when carried, and is inconvenient to store. This makes them difficult to adapt to the needs of different usage scenarios, and their overall flexibility is insufficient, causing many inconveniences to users. Utility Model Content

[0003] In view of the above situation and to overcome the shortcomings of the prior art, this utility model provides a multi-functional pliers that is easy to extend and carry. To achieve the above objectives, this utility model provides the following technical solution: a retractable self-locking multi-functional pliers, comprising two symmetrically arranged pliers heads, a fixing rod fixedly installed at the bottom of each of the two pliers heads, an adjusting sleeve fitted on the surface of each of the two fixing rods, a strip groove opened on both sides of each of the two fixing rods, a limiting rod inserted between the lower ends of the two strip grooves on the same fixing rod, the two ends of the two limiting rods being fixedly connected to the inner walls of the two adjusting sleeves respectively, and a stop bar provided in the lower part of the interior of each of the two fixing rods; Each of the two fixed rods has a handle at the bottom of one side close to the other. One end of each handle has a positioning component that fixes the two handles in place. The other end of each handle has a transmission component that is connected to the two stop bars. The transmission component can push the two stop bars to lock the two limit rods through elasticity. Iron plates are fixedly installed at the bottom of each of the two adjusting sleeves. Magnets are fixedly installed at the bottom of each of the two fixed rods.

[0004] Preferably, the positioning component includes slots formed at one end of two handles, with a rod movably inserted into one end of each slot, and a telescopic spring provided inside each slot, with both ends of the telescopic spring being fixedly connected to the rod and the inside of the slot, respectively.

[0005] Preferably, each of the insert rods has a lever fixedly installed on its surface, and each insert rod has a socket sleeved on one end, with one side of each socket fixedly connected to one of the two fixed rods respectively.

[0006] Preferably, the transmission assembly includes connectors rotatably mounted at one end of the two handles, with one end of each connector fixedly connected to two stop bars.

[0007] Preferably, each of the two rotating shafts is fixedly installed at the upper end of the two rotating shafts. Both ends of the two rotating shafts are rotatably connected to the inner walls of the two fixed rods through shaft seats. Both ends of the surfaces of the two rotating shafts are fitted with torsion springs. Both ends of the two torsion springs are fixedly connected to the shaft seats and the two rotating shafts, respectively.

[0008] Preferably, a transmission rod is rotatably mounted on the side of each of the two stops that are close to each other, a sliding sleeve is rotatably mounted on the lower end of each of the two transmission rods, a sliding rod is inserted inside each of the two sliding sleeves, the bottom of each of the two sliding rods is fixedly connected to the inner bottom of the fixed rod, a return spring is sleeved on the surface of each of the two sliding rods, and the two ends of each return spring are fixedly connected to the inner bottom of the fixed rod and the bottom of the sliding sleeve, respectively.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: During adjustment, the operator moves the two insert rods into the two slots using two levers, and simultaneously squeezes the two telescopic springs, thereby pulling the two insert rods out of the two sockets and unlocking the two handles; then, the operator rotates and unfolds the two handles in sequence, and then drives the connector to rotate through the handles. When the connector rotates, it drives the stop bar to rotate. When the stop bar rotates, it drives the rotating shaft to rotate around the shaft seat as the center, and at the same time rotates the torsion spring; while the stop bar rotates, it also pushes the sliding sleeve down along the surface of the sliding rod through the transmission rod. When the sliding sleeve moves down, it also compresses the return spring. When the stop bar rotates, it releases the obstruction of the limit rod, so that the adjusting sleeve can be moved and adjusted; Then, the operator moves the adjusting sleeve along the surface of the fixed rod to retract, and the iron plate is attracted to the magnet to fix the adjusting sleeve, thereby quickly shortening the length of the pliers and enabling self-locking. This allows the multi-functional pliers to quickly extend and retract and lock, making it convenient to use in narrow spaces. When shortened, it occupies little space, making it easy to store and improving overall flexibility. Attached Figure Description

[0010] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0011] In the attached diagram: Figure 1 This is a schematic diagram of the retractable self-locking multi-functional clamp structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the adjusting sleeve of this utility model; Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a schematic diagram of the internal structure of the handle of this utility model; Figure 5 This is a partial enlarged view of the internal structure of the fixing rod of this utility model. Figure 1 ; Figure 6 This is a partial enlarged view of the internal structure of the fixing rod of this utility model. Figure 2 ; In the diagram: 1. Pliers head; 2. Fixing rod; 3. Adjusting sleeve; 4. Strip groove; 5. Magnet; 6. Iron sheet; 7. Limiting rod; 8. Stop bar; 9. Handle; 10. Slot; 11. Insert rod; 12. Telescopic spring; 13. Toggle lever; 14. Socket; 15. Connector; 16. Shaft; 17. Torsion spring; 18. Shaft seat; 19. Transmission rod; 20. Sliding sleeve; 21. Sliding rod; 22. Return spring. Detailed Implementation

[0012] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments.

[0013] Depend on Figures 1 to 6 This embodiment includes two symmetrically arranged pliers heads 1. A fixing rod 2 is fixedly installed at the bottom of each pliers head 1. An adjusting sleeve 3 is fitted onto the surface of each fixing rod 2. The adjusting sleeve 3 can move and extend along the surface of the two fixing rods 2. A strip groove 4 is formed on both sides of each fixing rod 2. A limiting rod 7 is inserted between the lower ends of the two strip grooves 4 on the same fixing rod 2. The two ends of the limiting rod 7 are fixedly connected to the inner walls of the two adjusting sleeves 3. The limiting rod 7 can slide along the inside of the strip groove 4 to limit the movement trajectory of the adjusting sleeve 3. A stop bar 8 is provided at the lower part of the inside of each fixing rod 2. The two stop bars 8 block and limit the movement of the two limiting rods 7, preventing the adjusting sleeve 3 from moving, thereby achieving self-locking. Each of the two fixed rods 2 has a handle 9 at the lower part of one side close to the other. The two stop bars 8 can be unlocked by rotating the two handles 9. One end of each handle 9 is equipped with a positioning component, which fixes the two handles 9 in place to prevent them from rotating. The other end of each handle 9 is equipped with a transmission component, which is connected to the two stop bars 8. The transmission component can push the two stop bars 8 to lock the two limit rods 7 through elasticity. Iron plates 6 are fixedly installed on the inner bottom of each of the two adjusting sleeves 3. Magnets 5 are fixedly installed on the bottom of each of the two fixed rods 2. Magnets 5 can attract and fix the iron plates 6 to achieve self-locking of the adjusting sleeves 3.

[0014] During adjustment, the operator adjusts the two positioning components to unlock the two handles 9, and then drives the two stop bars 8 to rotate through the two handles 9. When the stop bars 8 rotate, they will release the obstruction of the limit rod 7, allowing the adjusting sleeve 3 to move and adjust. Then, the operator drives the adjusting sleeve 3 to move and retract along the surface of the fixed rod 2, and the iron plate 6 is attracted to the magnet 5 to fix the adjusting sleeve 3, thereby quickly shortening the length of the pliers and enabling self-locking. This allows the multi-functional pliers to quickly extend and retract and self-lock, making it convenient to use in narrow spaces. After shortening, it occupies little space, is easy to store, and improves the overall flexibility.

[0015] The positioning component includes slots 10 opened at one end of the two handles 9. A rod 11 is movably inserted into one end of each of the two slots 10. The two rods 11 can move within the two slots 10. A telescopic spring 12 is provided inside each of the two slots 10. The two ends of the two telescopic springs 12 are respectively fixedly connected to the rod 11 and the inside of the slot 10. The elastic force of the two telescopic springs 12 can push the two rods 11. Each of the plug rods 11 has a lever 13 fixedly installed on its surface. The lever 13 facilitates the movement of the plug rod 11. Each plug rod 11 has a socket 14 fitted on one end. The plug rod 11 is inserted into the socket 14 to position the handle 9. One side of each of the two sockets 14 is fixedly connected to two fixed rods 2.

[0016] The operator moves the two levers 13 to move the two insert rods 11 into the two slots 10, and at the same time squeezes the two telescopic springs 12, thereby pulling the two insert rods 11 out of the two sockets 14 and unlocking the two handles 9.

[0017] The transmission assembly includes a connector 15 rotatably mounted at one end of each of the two handles 9, allowing the two handles 9 to rotate and unfold along the two connectors 15. One end of each connector 15 is fixedly connected to one of the two stop bars 8, allowing the two handles 9 to drive the two stop bars 8 to rotate through the two connectors 15. A rotating shaft 16 is fixedly mounted on the upper end of each stop bar 8. Both ends of each rotating shaft 16 are rotatably connected to the inner walls of the two fixed rods 2 through a bearing seat 18, allowing the stop bars 8 to rotate along the bearing seat 18 through the rotating shaft 16. Torsion springs 17 are sleeved on both ends of the surfaces of each rotating shaft 16. Both ends of each torsion spring 17 are fixedly connected to the bearing seat 18 and the stop bar 8, respectively. The torsion springs 17 can provide rotational thrust for the stop bars 8.

[0018] The operator rotates and unfolds the two handles 9 in sequence, and then drives the connector 15 to rotate through the handles 9. When the connector 15 rotates, it drives the stop bar 8 to rotate. When the stop bar 8 rotates, it drives the rotating shaft 16 to rotate around the shaft seat 18 as the center, and at the same time rotates the torsion spring 17.

[0019] A transmission rod 19 is rotatably mounted on the side of each of the two stop bars 8 that is close to each other. A sliding sleeve 20 is rotatably mounted on the lower end of each of the two transmission rods 19. A sliding rod 21 is inserted inside each of the two sliding sleeves 20, allowing the two sliding sleeves 20 to move on the surface of the two sliding rods 21. The bottom of each of the two sliding rods 21 is fixedly connected to the inner bottom of the fixed rod 2. The two sliding rods 21 can restrict the two sliding sleeves 20 to move downwards but not upwards, thereby restricting the rotation of the two stop bars 8 and achieving stable positioning of the two limit rods 7. A return spring 22 is sleeved on the surface of each of the two sliding rods 21. The two ends of each return spring 22 are fixedly connected to the inner bottom of the fixed rod 2 and the bottom of the sliding sleeve 20, respectively. The two return springs 22 can provide rotational thrust for the stop bars 8.

[0020] As the stop bar 8 rotates, it will also push the sliding sleeve 20 down along the surface of the sliding rod 21 through the transmission rod 19. When the sliding sleeve 20 moves down, it will also compress the return spring 22. When the stop bar 8 rotates, it will release the obstruction of the limit rod 7, so that the adjusting sleeve 3 can be moved and adjusted.

[0021] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A retractable self-locking multi-functional pliers, comprising two symmetrically arranged plier heads (1), characterized in that: The bottom of each of the two clamp heads (1) is fixedly mounted with a fixing rod (2), and the surface of each of the two fixing rods (2) is fitted with an adjusting sleeve (3). Both sides of the two fixing rods (2) are provided with strip grooves (4). A limiting rod (7) is inserted between the lower ends of the two strip grooves (4) on the same fixing rod (2). The two ends of the two limiting rods (7) are fixedly connected to the inner walls of the two adjusting sleeves (3) respectively. The lower part of the interior of each of the two fixing rods (2) is provided with a stop strip (8). The two fixed rods (2) are provided with handles (9) on the lower part of the side close to each other. One end of the two handles (9) is provided with a positioning component, which fixes the two handles (9) in place. The other end of the two handles (9) is provided with a transmission component, which is connected to the two stop bars (8) in a transmission manner. The transmission component can push the two stop bars (8) to clamp the two limit rods (7) through elasticity.

2. The retractable self-locking multi-functional pliers according to claim 1, characterized in that: The positioning component includes slots (10) opened at one end of the two handles (9), and a rod (11) is movably inserted at one end of each of the two slots (10). A telescopic spring (12) is provided inside each of the two slots (10), and both ends of the two telescopic springs (12) are fixedly connected to the rod (11) and the inside of the slot (10), respectively.

3. The retractable self-locking multi-functional pliers according to claim 2, characterized in that: Each of the insert rods (11) has a lever (13) fixedly installed on its surface. Each of the insert rods (11) has a socket (14) fitted on one end, and one side of each socket (14) is fixedly connected to one of the two fixing rods (2).

4. The retractable self-locking multi-functional pliers according to claim 1, characterized in that: The transmission assembly includes a connector (15) rotatably mounted on one end of two handles (9), and one end of each connector (15) is fixedly connected to two stop bars (8).

5. The retractable self-locking multi-functional pliers according to claim 4, characterized in that: The upper end of each of the baffles (8) is fixedly installed with a rotating shaft (16). Both ends of the two rotating shafts (16) are rotatably connected to the inner wall of the two fixed rods (2) through the bearing seat (18). Both ends of the surfaces of the two rotating shafts (16) are fitted with torsion springs (17). Both ends of the two torsion springs (17) are fixedly connected to the bearing seat (18) and the baffle (8) respectively.

6. The retractable self-locking multi-functional pliers according to claim 4, characterized in that: A transmission rod (19) is rotatably mounted on one side of each of the two stops (8) that are close to each other. A sliding sleeve (20) is rotatably mounted on the lower end of each of the two transmission rods (19). A sliding rod (21) is inserted inside each of the two sliding sleeves (20). The bottom of each sliding rod (21) is fixedly connected to the inner bottom of the fixed rod (2). A return spring (22) is sleeved on the surface of each sliding rod (21). The two ends of each return spring (22) are fixedly connected to the inner bottom of the fixed rod (2) and the bottom of the sliding sleeve (20), respectively.

7. The retractable self-locking multi-functional pliers according to claim 1, characterized in that: Iron plates (6) are fixedly installed on the inner bottom of both adjustment sleeves (3), and magnets (5) are fixedly installed on the bottom of both fixing rods (2).

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