Electric wrench facilitating battery replacement

Abstract

The utility model discloses an electric wrench convenient to replace a battery, which belongs to the technical field of electric wrenches and is characterized by comprising a wrench shell, an output end is arranged on the rear side of the wrench shell, and heat conduction columns are embedded in two sides of the wrench shell. By arranging a wrench shell, an output end, a heat conduction column, a handheld handle, a top cover, a battery box, a lithium battery, a guide groove, a sliding cavity, a positioning assembly, an L-shaped insertion rod, a heat dissipation assembly, a heat dissipation plate and a heat dissipation hole, when the lithium battery in the battery box needs to be replaced and maintained, a user only needs to hold the battery box with one hand, and one finger of the user can press and push a pressing rod inwards; the pressing rod pushes the U-shaped positioning rod to move towards the spring in the sliding cavity, so that the spring is compressed, then the other hand of the user holds the wrench shell and pulls the wrench shell upwards, and therefore the horizontal part, located at the bottom of the top cover, of the L-shaped inserting rod is moved out of the U-shaped positioning rod upwards.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wrenches, and particularly relates to an electric wrench convenient for replacing a battery. Background Art

[0002] An electric wrench is a wrench powered by electricity or a battery, and is a tool for tightening high-strength bolts. It is also called a high-strength bolt gun and is mainly divided into impact wrenches, torque shear wrenches, fixed-torque wrenches, angle wrenches, and angled wrenches. Electric wrenches are mainly used in the steel structure installation industry to specifically install high-strength bolts for steel structures. High-strength bolts are used to connect steel structure joints and usually appear in the form of bolt groups. Electric wrenches have the following characteristics: long service life, high power, strong impact resistance, and the highest cost performance for hand use.

[0003] Currently, the Chinese utility model with the publication number CN218556909U discloses an electric wrench convenient for replacing a battery. This utility model discloses an electric wrench convenient for replacing a battery, including a wrench housing and a battery box. The top of the battery box is provided with a top cover, and a locking structure is arranged between the battery box and the top cover. The locking structure includes a strip-shaped slider and an L-shaped insertion rod. The strip-shaped slider is slidably connected inside a chute. The L-shaped insertion rod is welded to one side of the bottom of the top cover. A slot is opened on one side of the top of the battery box. An inclined extrusion groove is opened on the strip-shaped slider, and a clamping groove is opened at the bottom of the inclined extrusion groove. One end of the strip-shaped slider is welded with a spring, and a push rod penetrates through the other end of the chute. A heat dissipation fan is installed on one side of the battery box. Heat conduction columns penetrate through the middle parts of the two outer sides of the wrench housing. Air outlets and guide plates are arranged below and at the bottom of the two opposite outer sides of the wrench housing. The encapsulation and disassembly of the battery box of this utility model are convenient and fast, and the electric wrench is dissipated heat in multiple ways with good heat dissipation effect, without the need to stop the machine for cooling, improving work efficiency.

[0004] According to the above patent, when replacing and repairing the battery of the existing electric wrench convenient for replacing a battery, although only the push rod needs to be pushed inward to drive the strip-shaped slider to move towards the spring direction to compress the spring, and the horizontal part of the L-shaped insertion rod is removed from the clamping groove, and the L-shaped insertion rod is pulled out upward to complete the disassembly of the top cover, so as to facilitate the replacement of the lithium battery inside the battery box. However, because there are two push rods, when the user presses the push rods, they need to press the two push rods simultaneously, which is not convenient for the user to use and is not conducive to the convenience of disassembling the battery box and the top cover. Moreover, the heat dissipation fan for blowing air inside the battery box, the handle, and the wrench housing cannot start and stop automatically according to the temperature inside the battery box, the handle, and the wrench housing, so it is easy to consume electricity. Therefore, the above patent is improved according to the problems raised. Summary of the Utility Model

[0005] The present utility model provides an electric wrench that is convenient for replacing the battery, aiming to solve the problem that when the existing electric wrench convenient for replacing the battery is used for replacing and repairing its battery, although it only needs to push the push rod inward, so that the push rod drives the strip-shaped slider to move towards the spring direction to compress the spring, and the horizontal part of the L-shaped insertion rod moves out of the card slot, and the L-shaped insertion rod is pulled out upward to complete the disassembly of the top cover, thus facilitating the replacement of the lithium battery inside the battery box. However, because there are two push rods, when the user presses the push rods, they need to press the two push rods simultaneously, which is not convenient for the user to use and is not conducive to the convenience of disassembling the battery box and its top cover. In addition, the heat dissipation fan used for blowing air inside the battery box, the hand-held handle, and the wrench housing cannot start and stop automatically according to the temperature inside the battery box, the hand-held handle, and the wrench housing, so it is easy to consume power.

[0006] The present utility model is realized as follows: An electric wrench that is convenient for replacing the battery includes a wrench housing. An output end is provided at the rear side of the wrench housing. Heat conduction columns are embedded on both sides of the wrench housing. The bottom of the wrench housing is communicated with a hand-held handle. The bottom of the hand-held handle is communicated with a top cover. A battery box is provided at the bottom of the top cover. A lithium battery is placed inside the battery box. The charging end of the lithium battery penetrates through the front side inside the battery box. Guide grooves are respectively opened at the four corners on the outer side of the top of the battery box. A sliding cavity is opened inside the battery box. The top of the sliding cavity is communicated with the guide grooves. A positioning component is arranged inside the sliding cavity. L-shaped insertion rods are respectively fixedly connected to the four corners at the bottom of the top cover. The bottom of the L-shaped insertion rods penetrates through the guide grooves and is clamped inside the positioning component. A heat dissipation component is arranged on the right side of the battery box. Heat dissipation plates are respectively communicated with both sides of the wrench housing. Heat dissipation holes are opened at the top of the heat dissipation plates. The heat dissipation holes are located at the bottom of the heat conduction columns.

[0007] The positioning component includes a U-shaped positioning rod, a spring, a card slot, and a pressing rod. The U-shaped positioning rod is slidably connected inside the sliding cavity. Springs are respectively fixedly connected to the rear sides of both sides inside the sliding cavity. The front sides of the springs are fixedly connected to the rear side of the U-shaped positioning rod. The card slots are respectively opened at the front and rear sides of both sides at the top of the U-shaped positioning rod. The card slots are located at the bottom of the guide grooves. The pressing rod is fixedly connected to the front side of the U-shaped positioning rod. The front side of the pressing rod penetrates through the front side inside the sliding cavity.

[0008] In order to achieve the effect of automatically blowing air for heat dissipation inside its battery box, wrench housing and hand grip, as an optimization of the electric wrench with battery replacement convenience of the present utility model, the heat dissipation assembly includes a controller, a temperature sensor and a heat dissipation fan. The controller is bolted to the rear side inside the battery box, the temperature sensor is bolted to the rear side inside the battery box, the heat dissipation fan is embedded in the front and rear sides on the right side of the battery box, the controller and the temperature sensor are both electrically connected to the lithium battery, and the controller is electrically connected to the temperature sensor and the heat dissipation fan.

[0009] In order to achieve the effect of blocking dust for its heat dissipation holes, as an optimization of the electric wrench with battery replacement convenience of the present utility model, a dust-proof net is fixedly connected inside the heat dissipation holes, and the dust-proof net is in the shape of a hexagonal grid.

[0010] In order to achieve the effect of improving the comfort of the user when pressing the pressing rod, as an optimization of the electric wrench with battery replacement convenience of the present utility model, a pressing piece is bonded to the front side of the pressing rod, and the pressing piece is made of rubber material.

[0011] In order to achieve the effect of further improving the anti-slip performance of the surface of the pressing piece, as an optimization of the electric wrench with battery replacement convenience of the present utility model, anti-slip lines are formed on the surface of the pressing piece, and the anti-slip lines are in the shape of a grid.

[0012] In order to achieve the effect of shielding and protecting the heat dissipation fan, as an optimization of the electric wrench with battery replacement convenience of the present utility model, a protective net is bolted to the right side of the heat dissipation fan, and the protective net is in the shape of a grid.

[0013] In order to achieve the effect of assisting synchronous telescopic support for the spring, as an optimization of the electric wrench with battery replacement convenience of the present utility model, a telescopic rod is arranged inside the spring. The rear side of the telescopic rod is fixedly connected to the rear side inside the sliding cavity, and the front side of the telescopic rod is fixedly connected to the rear side of the U-shaped positioning rod.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] The electric wrench for convenient battery replacement is provided with a wrench housing, an output end, a heat-conducting column, a hand-held handle, a top cover, a battery box, a lithium battery, a guide groove, a sliding cavity, a positioning component, an L-shaped plug, a heat dissipation component, a heat dissipation plate and a heat dissipation hole. When the lithium battery in the battery box needs to be replaced and repaired, the user only needs to hold the battery box with one hand and use one finger to press and push the pressing rod inward, and the pressing rod then pushes the U-shaped positioning rod to move in the sliding cavity in the direction of the spring, thereby compressing the spring. Then, the user holds the wrench housing with the other hand and pulls upward, so that the horizontal part of the L-shaped plug located at the bottom of the top cover moves upward out of the U-shaped positioning rod, and then pulls the L-shaped plug upward out, so that the L-shaped plug is separated from the guide groove at the top of the battery box, and then the user is convenient to replace and repair the lithium battery located in the battery box. Then, when the lithium battery is replaced and the top cover needs to be sealed, the L-shaped plug is aligned with the guide groove and inserted, and the horizontal part of the L-shaped plug squeezes the card groove at the top of the U-shaped positioning rod and pushes the U-shaped positioning rod in the direction of the spring. The extrusion spring is moved, and then when the horizontal part of the L-shaped plug moves into the slot, the U-shaped positioning rod returns to its original position under the rebound force of its spring, so that the battery box and its top cover are closed, which is convenient for the user to use. Then, during the operation of the electric wrench, the internal temperature of the battery box is monitored in real time by setting a heat dissipation component. When the temperature circulating inside the battery box, the hand handle and the wrench shell is too low, the heat dissipation component is not started, and then when the temperature exceeds the predetermined sensing value, the heat dissipation component is started to blow and cool the lithium battery inside the battery box and the equipment inside the hand handle and the wrench shell, and then the hot air after heat absorption can be discharged from the heat exhaust hole of the heat exhaust plate, and at the same time, the heat conducting column can guide the internal heat to the outside, and the hot air discharged from the heat exhaust hole is discharged to the outside of the heat conducting column, thereby accelerating the air flow speed outside the heat conducting column, accelerating the heat dissipation rate of the heat conducting column, and faster extracting the internal heat, and then when the temperature circulating inside the battery box is normal, the heat dissipation component is stopped to facilitate use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structure diagram of the electric wrench that is convenient for replacing batteries of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the hand-held handle in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the battery box in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the positioning component in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the heat dissipation component in the utility model;

[0021] Figure 6 This is a schematic structural diagram of the U-shaped positioning rod in the present utility model.

[0022] In the figure, 1. wrench housing; 2. output end; 3. heat conducting column; 4. hand-held handle; 5. top cover; 6. battery box; 7. guide groove; 8. sliding cavity; 9. positioning component; 901. U-shaped positioning rod; 902. spring; 903. card slot; 904. pressing rod; 10. L-shaped insertion rod; 11. heat dissipation component; 1101. controller; 1102. temperature sensor; 1103. heat dissipation fan; 12. heat dissipation plate; 13. heat dissipation hole; 14. dust-proof net; 15. pressing piece; 16. protection net; 17. telescopic rod; 18. lithium battery. Specific embodiments

[0023] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, in the description of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0025] Please refer to Figures 1-6, the present utility model provides a technical solution: an electric wrench facilitating battery replacement, including a wrench housing 1, an output end 2 is arranged at the rear side of the wrench housing 1, heat conduction columns 3 are embedded on both sides of the wrench housing 1, a hand-held handle 4 is communicated with the bottom of the wrench housing 1, a top cover 5 is communicated with the bottom of the hand-held handle 4, a battery box 6 is arranged at the bottom of the top cover 5, a lithium battery 18 is placed inside the battery box 6, the charging end of the lithium battery 18 penetrates through the front side inside the battery box 6, guide grooves 7 are respectively opened at the four corners of the outer side of the top of the battery box 6, a sliding cavity 8 is opened inside the battery box 6, the top of the sliding cavity 8 is communicated with the guide grooves 7, a positioning component 9 is arranged inside the sliding cavity 8, L-shaped insertion rods 10 are respectively fixedly connected to the four corners of the bottom of the top cover 5, the bottom of the L-shaped insertion rods 10 penetrates through the guide grooves 7 and is clamped inside the positioning component 9, a heat dissipation component 11 is arranged on the right side of the battery box 6, exhaust heat plates 12 are respectively communicated with both sides of the wrench housing 1, exhaust heat holes 13 are opened at the top of the exhaust heat plates 12, and the exhaust heat holes 13 are located at the bottom of the heat conduction columns 3;

[0026] The positioning component 9 includes a U-shaped positioning rod 901, a spring 902, a card slot 903 and a pressing rod 904. The U-shaped positioning rod 901 is slidably connected inside the sliding cavity 8. The springs 902 are respectively fixedly connected to the rear sides of both sides inside the sliding cavity 8. The front sides of the springs 902 are fixedly connected to the rear side of the U-shaped positioning rod 901. The card slots 903 are respectively opened at the front and rear sides of both sides of the top of the U-shaped positioning rod 901. The card slots 903 are located at the bottom of the guide grooves 7. The pressing rod 904 is fixedly connected to the front side of the U-shaped positioning rod 901. The front side of the pressing rod 904 penetrates through the front side inside the sliding cavity 8.

[0027] In this embodiment: By providing a wrench housing 1, an output end 2, a heat conducting column 3, a hand-held handle 4, a top cover 5, a battery box 6, a lithium battery 18, a guide groove 7, a sliding cavity 8, a positioning component 9, an L-shaped insertion rod 10, a heat dissipation component 11, a heat dissipation plate 12, and a heat dissipation hole 13, when it is necessary to replace and repair the lithium battery 18 inside the battery box 6, the user only needs to hold the battery box 6 with one hand and use one of his fingers to press and push the pressing rod 904 inward. The pressing rod 904 then pushes the U-shaped positioning rod 901 to move inside the sliding cavity 8 in the direction of the spring 902, thereby compressing the spring 902. Then, the user holds the wrench housing 1 with the other hand and pulls it upward, so that the horizontal part of the L-shaped insertion rod 10 located at the bottom of the top cover 5 moves upward out of the U-shaped positioning rod 901. Then, the L-shaped insertion rod 10 is pulled out upward, so that the L-shaped insertion rod 10 is disengaged from the guide groove 7 at the top of the battery box 6. Then, it is convenient for the user to replace and repair the lithium battery 18 inside the battery box 6. Then, when the lithium battery 18 is replaced and the top cover 5 needs to be sealed, the L-shaped insertion rod 10 is inserted into the guide groove 7. The horizontal part of the L-shaped insertion rod 10 squeezes the card slot 903 at the top of the U-shaped positioning rod 901 and pushes the U-shaped positioning rod 901 to move in the direction of the spring 902 to squeeze the spring 902. Then, when the horizontal part of the L-shaped insertion rod 10 moves into the card slot 903, the U-shaped positioning rod 901 returns to its original position under the action of the rebounding force of the spring 902, so that the battery box 6 is closed with the top cover 5, which is convenient for the user to use. Then, during the working process of the electric wrench, the heat dissipation component 11 is provided to monitor the temperature inside the battery box 6 in real time. When the temperature flowing inside the battery box 6, the hand-held handle 4, and the wrench housing 1 is too low, the heat dissipation component 11 does not start. Then, when the temperature exceeds the predetermined induction value, the heat dissipation component 11 starts to blow air to cool the lithium battery 18 inside the battery box 6 and the devices inside the hand-held handle 4 and the wrench housing 1. Then, the hot air after absorbing heat can be discharged from the heat dissipation hole 13 of the heat dissipation plate 12. At the same time, the heat conducting column 3 can conduct the internal heat to the outside. The hot air discharged from the heat dissipation hole 13 is guided to the outside of the heat conducting column 3, thereby accelerating the air flow speed outside the heat conducting column 3 and accelerating the heat dissipation rate of the heat conducting column 3, and the internal heat can be exported faster. Then, when the temperature flowing inside the battery box 6 is normal, the heat dissipation component 11 stops to facilitate use.

[0028] As a technical optimization solution of the present utility model, the heat dissipation component 11 includes a controller 1101, a temperature sensor 1102, and a heat dissipation fan 1103. The controller 1101 is bolted to the rear side inside the battery box 6, the temperature sensor 1102 is bolted to the rear side inside the battery box 6, the heat dissipation fan 1103 is embedded in the front side and the rear side on the right side of the battery box 6. Both the controller 1101 and the temperature sensor 1102 are electrically connected to the lithium battery 18, and the controller 1101 is electrically connected to the temperature sensor 1102 and the heat dissipation fan 1103.

[0029] In this embodiment: By setting the controller 1101, the temperature sensor 1102, and the cooling fan 1103, the temperature sensor 1102 is set to monitor the internal temperature of the battery box 6 in real time. When the temperature sensor 1102 senses that the temperature flowing inside the battery box 6, the hand-held handle 4, and the wrench housing 1 is too low, it feeds back to the controller 1101, and the controller 1101 does not control the cooling fan 1103 to start. Then, when the temperature exceeds the predetermined sensing value of the temperature sensor 1102, it feeds back to the controller 1101, and the controller 1101 controls the cooling fan 1103 to start to blow air to cool the lithium battery 18 inside the battery box 6 and the devices inside the hand-held handle 4 and the wrench housing 1. Then, the hot air after absorbing heat can be discharged from the heat discharge holes 13 of the heat discharge plate 12. At the same time, the heat conduction column 3 can conduct the internal heat to the outside, and the hot air discharged from the heat discharge holes 13 is guided to the outside of the heat conduction column 3, thereby accelerating the air flow speed outside the heat conduction column 3 and accelerating the heat dissipation rate of the heat conduction column 3, and the internal heat can be exported faster. Then, when the temperature flowing inside the battery box 6 is normal, the cooling fan 1103 stops to facilitate use.

[0030] As a technical optimization scheme of the present utility model, a dust-proof net 14 is fixedly connected inside the heat discharge holes 13, and the dust-proof net 14 is in the shape of a hexagonal grid.

[0031] In this embodiment: By setting the dust-proof net 14, the effect of blocking dust for the heat discharge holes 13 can be achieved to facilitate use.

[0032] As a technical optimization scheme of the present utility model, a pressing piece 15 is adhered to the front side of the pressing rod 904, and the pressing piece 15 is made of rubber material.

[0033] In this embodiment: By setting the pressing piece 15, the effect of improving the comfort of the user when pressing the pressing rod 904 can be achieved to facilitate use.

[0034] As a technical optimization scheme of the present utility model, anti-slip lines are provided on the surface of the pressing piece 15, and the anti-slip lines are in the shape of a grid.

[0035] In this embodiment: By providing anti-slip lines in the shape of a grid on the surface of the pressing piece 15, the effect of further improving the anti-slip performance of the surface of the pressing piece 15 can be achieved.

[0036] As a technical optimization scheme of the present utility model, a protective net 16 is bolted to the right side of the cooling fan 1103, and the protective net 16 is in the shape of a grid.

[0037] In this embodiment: By providing a protective net 16, the effect of shielding and protecting the cooling fan 1103 can be achieved, which is beneficial for use.

[0038] As a technical optimization solution of the present utility model, a telescopic rod 17 is provided inside the spring 902. The rear side of the telescopic rod 17 is fixedly connected to the rear side inside the sliding cavity 8, and the front side of the telescopic rod 17 is fixedly connected to the rear side of the U-shaped positioning rod 901.

[0039] In this embodiment: By providing the telescopic rod 17, the effect of assisting the synchronous telescopic support of the spring 902 can be achieved, which is beneficial for use.

[0040] Working principle: First, when the lithium battery 18 in the battery box 6 needs to be replaced and repaired, the user only needs to hold the battery box 6 with one hand and use one finger to press the pressing rod 904 inward, and the pressing rod 904 then pushes the U-shaped positioning rod 901 to move in the direction of the spring 902 inside the sliding cavity 8, thereby compressing the spring 902, and then the user holds the wrench housing 1 with the other hand and pulls it upward, so that the horizontal part of the L-shaped insertion rod 10 located at the bottom of the top cover 5 moves upward from the U-shaped positioning rod 901, and then pulls out the L-shaped insertion rod 10 upward, so that its L The L-shaped rod 10 is disengaged from the guide slot 7 at the top of the battery box 6, and then it is convenient for the user to replace and repair the lithium battery 18 located inside the battery box 6. Then, when the lithium battery 18 is replaced and needs to be sealed on the top cover 5, the L-shaped rod 10 is aligned with the guide slot 7 and inserted. The horizontal part of the L-shaped rod 10 squeezes the slot 903 at the top of the U-shaped positioning rod 901 and pushes the U-shaped positioning rod 901 to move in the direction of the spring 902 to squeeze the spring 902. Then, when the horizontal part of the L-shaped rod 10 moves into the slot 903, the U-shaped positioning rod 901 returns to its original position under the rebound force of its spring 902. The battery box 6 and the top cover 5 are closed, so that it is convenient for the user to use. Then, during the operation of the electric wrench, the temperature sensor 1102 is set to monitor the internal temperature of the battery box 6 in real time. When the temperature sensor 1102 senses that the temperature circulating inside the battery box 6, the handle 4 and the wrench housing 1 is too low, it is fed back to the controller 1101, and the controller 1101 does not control the cooling fan 1103 to start. Then, when the temperature exceeds the preset sensing value of the temperature sensor 1102, it is fed back to the controller 1101, and the controller 1101 controls the cooling fan 1103 is started to blow air to cool down the lithium battery 18 inside the battery box 6 and the equipment inside the handle 4 and the wrench housing 1, and then the hot air absorbed by the air can be discharged from the heat exhaust hole 13 of the heat exhaust plate 12, and at the same time, the heat-conducting column 3 can guide the internal heat to the outside, and the hot air discharged from the heat exhaust hole 13 is discharged to the outside of the heat-conducting column 3, thereby accelerating the air flow speed outside the heat-conducting column 3, accelerating the heat dissipation rate of the heat-conducting column 3, and faster The internal heat can be discharged, and then when the temperature circulating inside the battery box 6 is normal, the cooling fan 1103 is stopped for ease of use.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric wrench for convenient battery replacement, comprising a wrench housing (1), characterized in that: An output terminal (2) is arranged at the rear side of the wrench housing (1), heat-conducting columns (3) are embedded on both sides of the wrench housing (1), a hand-held handle (4) is connected to the bottom of the wrench housing (1), a top cover (5) is connected to the bottom of the hand-held handle (4), a battery box (6) is arranged at the bottom of the top cover (5), a lithium battery (18) is placed inside the battery box (6), a charging end of the lithium battery (18) passes through the front side of the battery box (6), guide grooves (7) are arranged at the four corners of the top outer side of the battery box (6), and a sliding cavity is arranged on the inner side of the battery box (6). (8), the top of the sliding cavity (8) is connected to the guide groove (7), a positioning assembly (9) is arranged inside the sliding cavity (8), the four corners of the bottom of the top cover (5) are fixedly connected with L-shaped plug rods (10), the bottom of the L-shaped plug rod (10) passes through the guide groove (7) and is clamped in the interior of the positioning assembly (9), a heat dissipation assembly (11) is arranged on the right side of the battery box (6), both sides of the wrench housing (1) are connected with heat exhaust plates (12), the top of the heat exhaust plate (12) is provided with heat exhaust holes (13), and the heat exhaust holes (13) are located at the bottom of the heat conductive column (3); The positioning assembly (9) comprises a U-shaped positioning rod (901), a spring (902), a slot (903) and a pressing rod (904); the U-shaped positioning rod (901) is slidably connected to the inside of the sliding cavity (8); the spring (902) is respectively fixedly connected to the rear sides of both sides of the inside of the sliding cavity (8); the front side of the spring (902) is fixedly connected to the rear side of the U-shaped positioning rod (901); the slot (903) is respectively opened on the front side and the rear side of both sides of the top of the U-shaped positioning rod (901); the slot (903) is located at the bottom of the guide groove (7); the pressing rod (904) is fixedly connected to the front side of the U-shaped positioning rod (901); and the front side of the pressing rod (904) passes through the front side of the inside of the sliding cavity (8).

2. The electric wrench for easy battery replacement according to claim 1, characterized in that: The heat dissipation component (11) includes a controller (1101), a temperature sensor (1102) and a heat dissipation fan (1103). The controller (1101) is bolted to the rear side of the battery box (6). The temperature sensor (1102) is bolted to the rear side of the battery box (6). The heat dissipation fan (1103) is embedded in the front and rear sides of the right side of the battery box (6). The controller (1101) and the temperature sensor (1102) are both electrically connected to the lithium battery (18). The controller (1101) is electrically connected to the temperature sensor (1102) and the heat dissipation fan (1103).

3. The electric wrench for easy battery replacement according to claim 1, characterized in that: A dustproof net (14) is fixedly connected to the interior of the heat exhaust hole (13), and the dustproof net (14) is in the shape of a hexagonal grid.

4. The electric wrench for easy battery replacement according to claim 1, characterized in that: A pressing sheet (15) is bonded to the front side of the pressing rod (904), and the pressing sheet (15) is made of rubber material.

5. The electric wrench for easy battery replacement according to claim 4, characterized in that: The surface of the pressing sheet (15) is provided with anti-skid patterns, and the anti-skid patterns are in a grid shape.

6. The electric wrench for easy battery replacement according to claim 2, characterized in that: A protective net (16) is bolted to the right side of the cooling fan (1103), and the protective net (16) is in a grid shape.

7. The electric wrench for easy battery replacement according to claim 1, characterized in that: A telescopic rod (17) is arranged inside the spring (902), the rear side of the telescopic rod (17) is fixedly connected to the rear side inside the sliding cavity (8), and the front side of the telescopic rod (17) is fixedly connected to the rear side of the U-shaped positioning rod (901).

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