Damping structure capable of improving stability of battery pack of impact tool

Abstract

The utility model discloses a damping structure capable of improving the stability of a battery pack of an impact tool. A battery pack guide rail is formed by connecting a left guide rail and a right guide rail; a left guide rail mounting block is arranged on the left guide rail; a right guide rail mounting block is arranged on the right guide rail; a plurality of guide rail mounting holes are formed in the left guide rail mounting block and the right guide rail mounting block; shock pads are arranged on the two sides of the left guide rail mounting block and the right guide rail mounting block; a socket mounting block is arranged in the battery pack socket, and a plurality of socket mounting holes are formed in the socket mounting block; mounting gaps for inserting the left guide rail mounting block and the right guide rail mounting block are reserved between the two sides of the socket mounting block and the inner wall of the battery pack socket; and a plurality of connecting pins penetrate through the guide rail mounting holes and the socket mounting holes to connect the battery pack guide rail with the battery pack socket. Through the improvement on the structure, the vibration influence of the impact tool on the battery pack in the use process is greatly weakened, the connection reliability of the battery pack is improved, and the service life of the battery pack is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of impact tool technology, and more specifically to a shock-absorbing structure that can improve the stability of impact tool battery packs. Background Technology

[0002] Power tools, especially impact wrenches, generate significant vibrations during use. This vibration not only severely affects the communication and structural stability of the battery pack, potentially causing the entire machine to malfunction, but also impacts user comfort. This problem becomes increasingly pronounced as the tool's torque increases; therefore, effective vibration damping, particularly between the battery pack and the main unit, is crucial for impact wrenches.

[0003] In the prior art, utility model application number 201821011172.9 discloses an impact wrench, including a handle, a housing, and a battery pack extension foot. The handle has one end and another end; the housing is located at one end of the handle, and the battery pack extension foot is located at the other end. The housing is used to house a motor and / or transmission components, and the battery pack extension foot is used to install a battery pack. An elastic element is provided between the handle and the battery pack extension foot, and the elastic element is detachably connected to both the handle and the battery pack extension foot. When the machine is working, vibration is transmitted from the handle to the elastic element, damped by the elastic element, and then transmitted to the battery pack extension foot, reducing vibration impact and achieving a vibration damping effect. Utility model application No. 202090000645.4 discloses an electric tool, including a motor housing, a motor positioned within the motor housing and configured to rotatably drive an output shaft; a handle connected to the motor housing; and a vibration damping assembly located between the motor housing and the handle, the vibration damping assembly including a first connecting portion defined by the motor housing, a second connecting portion defined by the handle, and an elastic damper engaged between the first and second connecting portions. Utility model application No. 202323027970.4 discloses a shock-absorbing structure for impact tools, including a battery pack socket, a battery pack guide rail, and a shock-absorbing mechanism for connecting the battery pack socket and the battery pack guide rail; the shock-absorbing mechanism is detachably connected to both the battery pack socket and the battery pack guide rail; the shock-absorbing mechanism includes several connecting pins and shock-absorbing rubber rings; the shock-absorbing rubber rings are disposed on the battery pack guide rail, and the battery pack socket has connecting through holes for the connecting pins to pass through, with both ends of the connecting pins inserted into the shock-absorbing rubber rings disposed on the battery pack guide rail after passing through the connecting through holes.

[0004] During the use of electric impact tools, there is a certain contact distance between the battery pack socket and the guide rail, which makes it prone to vibration and affects the stability of the battery pack. Furthermore, as the usage time increases, the battery pack socket is prone to prying outward, making the connection between the battery pack socket and the guide rail even more unstable. The technical solutions provided in the above-mentioned existing technologies cannot effectively solve this problem. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a shock-absorbing structure that can improve the stability of impact tool battery packs. The battery pack socket and the battery pack guide rail are connected by a floating connection, which facilitates installation and enhances the shock absorption effect.

[0006] The technical solution adopted by this utility model to solve the technical problem is: a shock-absorbing structure that can improve the stability of an impact tool battery pack, including a battery pack, a battery pack guide rail, and a battery pack socket. The battery pack is connected to the battery pack socket through the battery pack guide rail. The battery pack guide rail is formed by connecting a left guide rail and a right guide rail. A left guide rail mounting block is provided on the left guide rail, and a right guide rail mounting block is provided on the right guide rail. Both the left and right guide rail mounting blocks have several guide rail mounting holes. Shock-absorbing pads are provided on both sides of the left and right guide rail mounting blocks. A socket mounting block is provided inside the battery pack socket, and the socket mounting block has several socket mounting holes. There are installation gaps between the two sides of the socket mounting block and the inner wall of the battery pack socket for the left and right guide rail mounting blocks to be inserted. Several connecting pins pass through the guide rail mounting holes and the socket mounting holes to connect the battery pack guide rail and the battery pack socket.

[0007] Furthermore, a female connector is provided on one side of the left guide rail, and a male connector is provided on one side of the right guide rail; the left guide rail and the right guide rail are connected by the male connector and the female connector.

[0008] Furthermore, the female connector includes two or more, respectively located at the front and rear of the left guide rail; the male connector includes two or more, respectively located at the front and rear of the right guide rail; each of the female connectors is matched and plugged into the corresponding male connector.

[0009] Furthermore, the male and female terminals are provided with guide rail connecting pins.

[0010] Furthermore, the shock-absorbing pad includes a first shock-absorbing pad and a second shock-absorbing pad; the inner side of both the left mounting block and the right mounting block is provided with a first shock-absorbing pad, and the outer side of both the left mounting block and the right mounting block is provided with a second shock-absorbing pad; both the first shock-absorbing pad and the second shock-absorbing pad are provided with several through holes through which the connecting pin can pass.

[0011] Furthermore, one side of the first damping pad is provided with a plurality of first protruding holes, the through holes penetrating the first protruding holes, and each of the first protruding holes being embedded in the corresponding guide rail mounting hole; one side of the second damping pad is provided with a second protruding hole, the through holes penetrating the second protruding holes, and each of the second protruding holes being embedded in the corresponding guide rail mounting hole; the sum of the heights of the first protruding holes and the second protruding holes does not exceed the depth of the guide rail mounting hole.

[0012] Furthermore, the lower part of the second shock-absorbing pad is an extension. After the battery pack guide rail is installed into the battery pack socket, the extension is located between the outer side of the battery pack guide rail and the inner side of the battery pack socket, which prevents the battery pack guide rail from being pushed outward and enhances the stability of the battery pack.

[0013] Furthermore, the outer side of the extension is provided with a boss, and the inner wall of the battery pack socket is provided with a stepped surface that mates with the boss.

[0014] Furthermore, the socket mounting block includes a left socket mounting block and a right socket mounting block, and the left and right socket mounting blocks engage with each other at their joints.

[0015] The beneficial effects of this utility model are as follows: Compared with the prior art, the shock-absorbing structure provided by this utility model, which can improve the stability of impact tool battery packs, has the following advantages:

[0016] 1) A floating connection is made between the battery pack socket and the battery pack rail. Specifically, the left rail mounting block and the right rail mounting block are inserted into the installation gap of the battery pack socket and then fixed with a connecting pin. This method is not only very convenient to install, but also has a good shock absorption effect.

[0017] 2) The left and right guide rails are connected by male and female plugs. This makes installation simple and quick. Compared with the traditional method of just touching, the male and female plugs make the connection between the left and right guide rails more secure and effectively prevent them from being pushed apart. In a more optimized case, a guide rail connecting pin can be added inside the male and female plugs to further enhance the connection effect.

[0018] 3) First and second shock-absorbing pads are installed on both sides of the left and right guide rail mounting blocks, and the protrusions on the shock-absorbing pads are embedded in the mounting holes of each guide rail, "wrapping" the inside and outside of the left and right guide rail mounting blocks, which plays a good role in buffering and shock absorption. In addition, the second shock-absorbing pad has an extension design, which is located between the battery pack socket and the battery pack guide rail, which can more effectively prevent the battery pack guide rail from being stretched in the spreading direction and ensure the fixing effect of the battery pack. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of the impact tool provided by this utility model.

[0020] Figure 2 This is a partial disassembly diagram of the shock-absorbing structure provided by this utility model.

[0021] Figure 3A cross-sectional view of the shock-absorbing structure provided by this utility model.

[0022] Figure 4 A schematic diagram of the structure after the impact tool provided by this utility model has removed the battery pack guide rail and the battery pack.

[0023] Figure 5 This is a schematic diagram of the battery pack guide rail in the shock absorption structure provided by this utility model.

[0024] Figure 6 An exploded view of the battery pack guide rail in the shock absorption structure provided by this utility model.

[0025] Figure 7 This is a schematic diagram of the left and right guide rails in the shock absorption structure provided by this utility model.

[0026] Figure 8 A cross-sectional schematic diagram of the battery pack guide rail in the shock absorption structure provided by this utility model.

[0027] Wherein, 1-battery pack socket; 101-socket mounting block; 102-socket mounting hole; 103-right socket mounting block; 104-left socket mounting block; 105-installation gap; 106-step surface; 2-battery pack guide rail; 201-right guide rail; 202-left guide rail; 203-right guide rail mounting block; 204-left guide rail mounting block; 205-guide rail mounting hole; 206-male plug end; 207-female plug end; 208-guide rail connecting pin; 3-battery pack; 4-connecting pin; 5-second shock-absorbing pad; 501-extension; 502-second protruding hole; 503-bore; 7-first shock-absorbing pad; 701-first protruding hole; 8-through hole. Detailed Implementation

[0028] The present invention will be further illustrated by specific embodiments below. However, these examples are only for illustrative purposes and are not intended to limit the scope of the present invention.

[0029] Example

[0030] like Figures 1-8As shown, a shock-absorbing structure for improving the stability of an impact tool battery pack includes a battery pack 3, a battery pack guide rail 2, and a battery pack socket 1. The battery pack 3 is connected to the battery pack socket 1 via the battery pack guide rail 2. The battery pack guide rail 2 is formed by connecting a left guide rail 202 and a right guide rail 201. A left guide rail mounting block 204 is provided on the left guide rail 202, and a right guide rail mounting block 203 is provided on the right guide rail 201. Both the left guide rail mounting block 204 and the right guide rail mounting block 203 have several guide rail mounting holes 205. Both sides of the left guide rail mounting block 204 and the right guide rail mounting block 203 are provided with shock-absorbing pads; the battery pack socket 1 is provided with a socket mounting block 101, and the socket mounting block 101 is provided with a plurality of socket mounting holes 102; the two sides of the socket mounting block 101 and the inner wall of the battery pack socket 1 are provided with mounting gaps 105 for the left guide rail mounting block 204 and the right guide rail mounting block 203 to be inserted; a plurality of connecting pins 4 pass through the guide rail mounting holes 205 and the socket mounting holes 102 to connect the battery pack guide rail 2 and the battery pack socket 1.

[0031] The floating connection between the battery pack socket 1 and the battery pack guide rail 2 enhances the shock absorption effect. During installation, simply insert the battery pack guide rail 2 into the battery pack socket 1 and then secure it with the connecting pin 4; installation is very convenient. In practical applications, the connecting pin 4 can be in one or two sets. Installation is more convenient when there are two sets of connecting pin 4, therefore, it is preferred that there are two sets of connecting pin 4; one set of connecting pin 4 is used to connect the left guide rail 202 and the socket mounting block 101, and the other set of connecting pin 4 is used to connect the right guide rail 201 and the socket mounting block 101.

[0032] In this embodiment, the left guide rail 202 has a female connector 207 on one side, and the right guide rail 201 has a male connector 206 on one side. The left guide rail 202 and the right guide rail 201 are connected by the male connector 206 and the female connector 207. There are two female connectors 207, located at the front and rear of the left guide rail 202 respectively; there are two male connectors 206, located at the front and rear of the right guide rail 201 respectively. Each female connector 207 is matched and connected to its corresponding male connector 206. The cooperation of the male and female connectors makes the connection between the left and right guide rails 201 more secure, effectively preventing the battery pack guide rail 2 from prying open.

[0033] In another embodiment, such as Figure 8 As shown, guide rail connecting pins 208 are provided inside the male plug end 206 and the female plug end 207. Adding guide rail connecting pins 208 inside the male plug end 206 and the female plug end 207 can further enhance the connection effect.

[0034] In this embodiment, the shock-absorbing pad includes a first shock-absorbing pad 7 and a second shock-absorbing pad 5; the inner sides of the left guide rail mounting block 204 and the right guide rail mounting block 203 are each provided with a first shock-absorbing pad 7, and the outer sides of the left guide rail mounting block 204 and the right guide rail mounting block 203 are each provided with a second shock-absorbing pad 5; the first shock-absorbing pad 7 and the second shock-absorbing pad 5 are each provided with a plurality of through holes 8 through which the connecting pin 4 can pass. One side of the first shock-absorbing pad 7 is provided with a plurality of first protruding holes 701, and the through holes 8 penetrate the first protruding holes 701, each of the first protruding holes 701 being embedded in the corresponding guide rail mounting hole 205; one side of the second shock-absorbing pad 5 is provided with a second protruding hole 502, and the through holes 8 penetrate the second protruding hole 502, each of the second protruding holes 502 being embedded in the corresponding guide rail mounting hole 205; the sum of the heights of the first protruding holes 701 and the second protruding holes 502 does not exceed the depth of the guide rail mounting hole 205.

[0035] During installation, the first shock-absorbing pad 7 is installed on the inner side of the left guide rail mounting block 204 or the right guide rail mounting block 203 (e.g., Figure 3 The first convex hole 701 on the first damping pad 7 is positioned near the socket mounting block 101, so that it is embedded in the guide rail mounting hole 205 on the left guide rail mounting block 204 or the right guide rail mounting block 203. The first convex hole 701 and the guide rail mounting hole 205 are slightly press-fitted. The main body of the first damping pad 7 is in close contact with the inner side of the left guide rail mounting block 204 or the right guide rail mounting block 203, and protrudes from the plane containing the inner side of the left guide rail mounting block 204 or the right guide rail mounting block 203. On the one hand, after the connecting pin 4 passes through the first convex hole 701, the vibration between the connecting pin 4 and the left guide rail mounting block 204 or the right guide rail mounting block 203 is reduced due to the buffering effect of the first convex hole 701. On the other hand, the vibration between the battery pack socket 1 and the battery pack guide rail 2 is reduced due to the buffering effect of the main body of the first damping pad 7.

[0036] The second shock-absorbing pad 5 is installed on the outside of the left guide rail mounting block 204 or the right guide rail mounting block 203 (e.g., Figure 3The second convex hole 502 on the second damping pad 5 is positioned near the outer wall of the battery pack socket 1, so that it is embedded into the guide rail mounting hole 205 on the left guide rail mounting block 204 or the right guide rail mounting block 203. The second convex hole 502 and the guide rail mounting hole 205 are slightly press-fitted. The main body of the second damping pad 5 is in close contact with the outer side of the left guide rail mounting block 204 or the right guide rail mounting block 203 and protrudes from the plane where the outer side of the left guide rail mounting block 204 or the right guide rail mounting block 203 is located. On the one hand, after the connecting pin 4 passes through the second convex hole 502, the vibration between the connecting pin 4 and the left guide rail mounting block 204 or the right guide rail mounting block 203 is reduced due to the buffering effect of the second convex hole 502. On the other hand, the vibration between the battery pack socket 1 and the battery pack guide rail 2 is reduced due to the buffering effect of the main body of the second damping pad 5.

[0037] In another embodiment, the second shock-absorbing pad 5 is located below an extension 501. After the battery pack guide rail 2 is inserted into the battery pack socket 1, the extension 501 is located between the outer side of the battery pack guide rail 2 and the inner side of the battery pack socket 1. The outer side of the extension 501 is provided with a boss 503, and the inner wall of the battery pack socket 1 is provided with a stepped surface 106 that cooperates with the boss 503. This can effectively prevent the battery pack guide rail 2 from being pushed outward and enhance the stability of the battery pack.

[0038] In this embodiment, the socket mounting block 101 includes a left socket mounting block 104 and a right socket mounting block 103. The left and right socket mounting blocks engage with each other at their joints, which facilitates installation.

[0039] To achieve the desired vibration reduction effect, the main improvements made to the aforementioned vibration damping structure can be summarized as follows:

[0040] 4) A floating connection is made between the battery pack socket 1 and the battery pack guide rail 2. Specifically, the left guide rail mounting block 204 and the right guide rail mounting block 203 are inserted into the installation gap 105 of the battery pack socket 1, and then fixed with the connecting pin 4. Not only is the installation method very convenient, but the floating connection method also has a good shock absorption effect.

[0041] 5) The left guide rail 202 and the right guide rail 201 are connected by male and female plugs. On the one hand, the installation is simple and quick. On the other hand, compared with the traditional method of just touching, the connection between the left and right guide rails is more secure and effectively prevents them from being pushed apart. In a more optimized case, a guide rail connecting pin 208 can be added inside the male and female plugs to further enhance the connection effect.

[0042] 6) A first shock-absorbing pad 7 and a second shock-absorbing pad 5 are provided on both sides of the left guide rail mounting block 204 and the right guide rail mounting block 203. The protrusions on the shock-absorbing pads are embedded in the mounting holes 205 of each guide rail, "wrapping" the inside and outside of the left and right guide rail mounting blocks 203, which plays a good role in buffering and shock absorption. In addition, the second shock-absorbing pad 5 has an extension 501 designed so that the extension 501 is located between the battery pack socket 1 and the battery pack guide rail 2, which can more effectively prevent the battery pack guide rail 2 from being stretched in the spreading direction and ensure the fixing effect of the battery pack.

[0043] The above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions also fall within the scope of the present utility model. The patent protection scope of the present utility model should be defined by the claims.

Claims

1. A shock-absorbing structure for improving the stability of a battery pack in an impact tool, comprising a battery pack, a battery pack guide rail, and a battery pack socket, wherein the battery pack is connected to the battery pack socket via the battery pack guide rail; characterized in that: The battery pack guide rail is composed of a left guide rail and a right guide rail connected together; the left guide rail is provided with a left guide rail mounting block, and the right guide rail is provided with a right guide rail mounting block; both the left and right guide rail mounting blocks have several guide rail mounting holes; both sides of the left and right guide rail mounting blocks are provided with shock-absorbing pads; the battery pack socket is provided with a socket mounting block, which has several socket mounting holes; there are installation gaps between the sides of the socket mounting block and the inner wall of the battery pack socket for the left and right guide rail mounting blocks to be inserted; several connecting pins pass through the guide rail mounting holes and socket mounting holes to connect the battery pack guide rail and the battery pack socket.

2. The shock-absorbing structure for improving the stability of impact tool battery packs as described in claim 1, characterized in that: The left guide rail has a female connector on one side, and the right guide rail has a male connector on one side; the left and right guide rails are connected by the male and female connectors.

3. The shock-absorbing structure for improving the stability of impact tool battery packs as described in claim 2, characterized in that: The female connectors include two or more, respectively located at the front and rear of the left guide rail; the male connectors include two or more, respectively located at the front and rear of the right guide rail; each of the female connectors is matched and plugged into the corresponding male connector.

4. A shock-absorbing structure for improving the stability of impact tool battery packs as described in claim 2 or 3, characterized in that: The male and female terminals are equipped with guide rail connecting pins.

5. A shock-absorbing structure for improving the stability of impact tool battery packs as described in claim 1, characterized in that: The shock-absorbing pad includes a first shock-absorbing pad and a second shock-absorbing pad; the inner side of the left guide rail mounting block and the right guide rail mounting block are provided with the first shock-absorbing pad, and the outer side of the left guide rail mounting block and the right guide rail mounting block are provided with the second shock-absorbing pad; the first shock-absorbing pad and the second shock-absorbing pad are each provided with several through holes through which the connecting pin can pass.

6. The shock-absorbing structure for improving the stability of impact tool battery packs as described in claim 5, characterized in that: The first damping pad has a plurality of first protruding holes on one side, and the through hole passes through the first protruding hole, and each of the first protruding holes is embedded in the corresponding guide rail mounting hole; the second damping pad has a second protruding hole on one side, and the through hole passes through the second protruding hole, and each of the second protruding holes is embedded in the corresponding guide rail mounting hole; the sum of the heights of the first protruding hole and the second protruding hole does not exceed the depth of the guide rail mounting hole.

7. A shock-absorbing structure for improving the stability of an impact tool battery pack as described in claim 5 or 6, characterized in that: Below the second shock-absorbing pad is an extension. After the battery pack guide rail is installed into the battery pack socket, the extension is located between the outer side of the battery pack guide rail and the inner side of the battery pack socket.

8. A shock-absorbing structure for improving the stability of an impact tool battery pack as described in claim 7, characterized in that: The extension has a boss on its outer side, and the inner wall of the battery pack socket has a stepped surface that mates with the boss.

9. A shock-absorbing structure for improving the stability of impact tool battery packs as described in claim 1, characterized in that: The socket mounting block includes a left socket mounting block and a right socket mounting block, and the left socket mounting block and the right socket mounting block engage with each other at their joints.

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